blob: 2a3bd607a5cdad20b8d7d9fcc0cb47ab0cac6646 [file] [log] [blame]
James Ketrenos43f66a62005-03-25 12:31:53 -06001/******************************************************************************
Jeff Garzikbf794512005-07-31 13:07:26 -04002
James Ketrenos43f66a62005-03-25 12:31:53 -06003 Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved.
4
5 802.11 status code portion of this file from ethereal-0.10.6:
6 Copyright 2000, Axis Communications AB
7 Ethereal - Network traffic analyzer
8 By Gerald Combs <gerald@ethereal.com>
9 Copyright 1998 Gerald Combs
10
Jeff Garzikbf794512005-07-31 13:07:26 -040011 This program is free software; you can redistribute it and/or modify it
12 under the terms of version 2 of the GNU General Public License as
James Ketrenos43f66a62005-03-25 12:31:53 -060013 published by the Free Software Foundation.
Jeff Garzikbf794512005-07-31 13:07:26 -040014
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
James Ketrenos43f66a62005-03-25 12:31:53 -060018 more details.
Jeff Garzikbf794512005-07-31 13:07:26 -040019
James Ketrenos43f66a62005-03-25 12:31:53 -060020 You should have received a copy of the GNU General Public License along with
Jeff Garzikbf794512005-07-31 13:07:26 -040021 this program; if not, write to the Free Software Foundation, Inc., 59
James Ketrenos43f66a62005-03-25 12:31:53 -060022 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Jeff Garzikbf794512005-07-31 13:07:26 -040023
James Ketrenos43f66a62005-03-25 12:31:53 -060024 The full GNU General Public License is included in this distribution in the
25 file called LICENSE.
Jeff Garzikbf794512005-07-31 13:07:26 -040026
James Ketrenos43f66a62005-03-25 12:31:53 -060027 Contact Information:
28 James P. Ketrenos <ipw2100-admin@linux.intel.com>
29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30
31******************************************************************************/
32
33#include "ipw2200.h"
34
35#define IPW2200_VERSION "1.0.0"
36#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
37#define DRV_COPYRIGHT "Copyright(c) 2003-2004 Intel Corporation"
38#define DRV_VERSION IPW2200_VERSION
39
40MODULE_DESCRIPTION(DRV_DESCRIPTION);
41MODULE_VERSION(DRV_VERSION);
42MODULE_AUTHOR(DRV_COPYRIGHT);
43MODULE_LICENSE("GPL");
44
45static int debug = 0;
46static int channel = 0;
47static char *ifname;
48static int mode = 0;
49
50static u32 ipw_debug_level;
51static int associate = 1;
52static int auto_create = 1;
53static int disable = 0;
54static const char ipw_modes[] = {
55 'a', 'b', 'g', '?'
56};
57
58static void ipw_rx(struct ipw_priv *priv);
Jeff Garzikbf794512005-07-31 13:07:26 -040059static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -060060 struct clx2_tx_queue *txq, int qindex);
61static int ipw_queue_reset(struct ipw_priv *priv);
62
63static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
64 int len, int sync);
65
66static void ipw_tx_queue_free(struct ipw_priv *);
67
68static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
69static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
70static void ipw_rx_queue_replenish(void *);
71
72static int ipw_up(struct ipw_priv *);
73static void ipw_down(struct ipw_priv *);
74static int ipw_config(struct ipw_priv *);
75static int init_supported_rates(struct ipw_priv *priv, struct ipw_supported_rates *prates);
76
77static u8 band_b_active_channel[MAX_B_CHANNELS] = {
78 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 0
79};
80static u8 band_a_active_channel[MAX_A_CHANNELS] = {
81 36, 40, 44, 48, 149, 153, 157, 161, 165, 52, 56, 60, 64, 0
82};
83
84static int is_valid_channel(int mode_mask, int channel)
85{
86 int i;
87
88 if (!channel)
89 return 0;
90
91 if (mode_mask & IEEE_A)
92 for (i = 0; i < MAX_A_CHANNELS; i++)
93 if (band_a_active_channel[i] == channel)
94 return IEEE_A;
95
96 if (mode_mask & (IEEE_B | IEEE_G))
97 for (i = 0; i < MAX_B_CHANNELS; i++)
98 if (band_b_active_channel[i] == channel)
99 return mode_mask & (IEEE_B | IEEE_G);
100
101 return 0;
102}
103
Jeff Garzikbf794512005-07-31 13:07:26 -0400104static char *snprint_line(char *buf, size_t count,
James Ketrenos43f66a62005-03-25 12:31:53 -0600105 const u8 *data, u32 len, u32 ofs)
106{
107 int out, i, j, l;
108 char c;
Jeff Garzikbf794512005-07-31 13:07:26 -0400109
James Ketrenos43f66a62005-03-25 12:31:53 -0600110 out = snprintf(buf, count, "%08X", ofs);
111
112 for (l = 0, i = 0; i < 2; i++) {
113 out += snprintf(buf + out, count - out, " ");
Jeff Garzikbf794512005-07-31 13:07:26 -0400114 for (j = 0; j < 8 && l < len; j++, l++)
115 out += snprintf(buf + out, count - out, "%02X ",
James Ketrenos43f66a62005-03-25 12:31:53 -0600116 data[(i * 8 + j)]);
117 for (; j < 8; j++)
118 out += snprintf(buf + out, count - out, " ");
119 }
Jeff Garzikbf794512005-07-31 13:07:26 -0400120
James Ketrenos43f66a62005-03-25 12:31:53 -0600121 out += snprintf(buf + out, count - out, " ");
122 for (l = 0, i = 0; i < 2; i++) {
123 out += snprintf(buf + out, count - out, " ");
124 for (j = 0; j < 8 && l < len; j++, l++) {
125 c = data[(i * 8 + j)];
126 if (!isascii(c) || !isprint(c))
127 c = '.';
Jeff Garzikbf794512005-07-31 13:07:26 -0400128
James Ketrenos43f66a62005-03-25 12:31:53 -0600129 out += snprintf(buf + out, count - out, "%c", c);
130 }
131
132 for (; j < 8; j++)
133 out += snprintf(buf + out, count - out, " ");
134 }
Jeff Garzikbf794512005-07-31 13:07:26 -0400135
James Ketrenos43f66a62005-03-25 12:31:53 -0600136 return buf;
137}
138
139static void printk_buf(int level, const u8 *data, u32 len)
140{
141 char line[81];
142 u32 ofs = 0;
143 if (!(ipw_debug_level & level))
144 return;
145
146 while (len) {
147 printk(KERN_DEBUG "%s\n",
Jeff Garzikbf794512005-07-31 13:07:26 -0400148 snprint_line(line, sizeof(line), &data[ofs],
James Ketrenos43f66a62005-03-25 12:31:53 -0600149 min(len, 16U), ofs));
150 ofs += 16;
151 len -= min(len, 16U);
152 }
153}
154
155static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
156#define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
157
158static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
159#define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
160
161static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
162static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
163{
Jeff Garzikbf794512005-07-31 13:07:26 -0400164 IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c));
James Ketrenos43f66a62005-03-25 12:31:53 -0600165 _ipw_write_reg8(a, b, c);
166}
167
168static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
169static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
170{
Jeff Garzikbf794512005-07-31 13:07:26 -0400171 IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c));
James Ketrenos43f66a62005-03-25 12:31:53 -0600172 _ipw_write_reg16(a, b, c);
173}
174
175static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
176static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
177{
Jeff Garzikbf794512005-07-31 13:07:26 -0400178 IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c));
James Ketrenos43f66a62005-03-25 12:31:53 -0600179 _ipw_write_reg32(a, b, c);
180}
181
182#define _ipw_write8(ipw, ofs, val) writeb((val), (ipw)->hw_base + (ofs))
183#define ipw_write8(ipw, ofs, val) \
184 IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
185 _ipw_write8(ipw, ofs, val)
186
187#define _ipw_write16(ipw, ofs, val) writew((val), (ipw)->hw_base + (ofs))
188#define ipw_write16(ipw, ofs, val) \
189 IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
190 _ipw_write16(ipw, ofs, val)
191
192#define _ipw_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs))
193#define ipw_write32(ipw, ofs, val) \
194 IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
195 _ipw_write32(ipw, ofs, val)
196
197#define _ipw_read8(ipw, ofs) readb((ipw)->hw_base + (ofs))
198static inline u8 __ipw_read8(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) {
199 IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", f, l, (u32)(ofs));
200 return _ipw_read8(ipw, ofs);
201}
202#define ipw_read8(ipw, ofs) __ipw_read8(__FILE__, __LINE__, ipw, ofs)
203
204#define _ipw_read16(ipw, ofs) readw((ipw)->hw_base + (ofs))
205static inline u16 __ipw_read16(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) {
206 IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", f, l, (u32)(ofs));
207 return _ipw_read16(ipw, ofs);
208}
209#define ipw_read16(ipw, ofs) __ipw_read16(__FILE__, __LINE__, ipw, ofs)
210
211#define _ipw_read32(ipw, ofs) readl((ipw)->hw_base + (ofs))
212static inline u32 __ipw_read32(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) {
213 IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", f, l, (u32)(ofs));
214 return _ipw_read32(ipw, ofs);
215}
216#define ipw_read32(ipw, ofs) __ipw_read32(__FILE__, __LINE__, ipw, ofs)
217
218static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
219#define ipw_read_indirect(a, b, c, d) \
220 IPW_DEBUG_IO("%s %d: read_inddirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
221 _ipw_read_indirect(a, b, c, d)
222
223static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 *data, int num);
224#define ipw_write_indirect(a, b, c, d) \
225 IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
226 _ipw_write_indirect(a, b, c, d)
227
228/* indirect write s */
229static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg,
230 u32 value)
231{
Jeff Garzikbf794512005-07-31 13:07:26 -0400232 IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n",
James Ketrenos43f66a62005-03-25 12:31:53 -0600233 priv, reg, value);
234 _ipw_write32(priv, CX2_INDIRECT_ADDR, reg);
235 _ipw_write32(priv, CX2_INDIRECT_DATA, value);
236}
237
238
239static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
240{
241 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
242 _ipw_write32(priv, CX2_INDIRECT_ADDR, reg & CX2_INDIRECT_ADDR_MASK);
243 _ipw_write8(priv, CX2_INDIRECT_DATA, value);
Jeff Garzikbf794512005-07-31 13:07:26 -0400244 IPW_DEBUG_IO(" reg = 0x%8lX : value = 0x%8X\n",
Jiri Bencaaa4d302005-06-07 14:58:41 +0200245 (unsigned long)(priv->hw_base + CX2_INDIRECT_DATA),
James Ketrenos43f66a62005-03-25 12:31:53 -0600246 value);
247}
248
249static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg,
250 u16 value)
251{
252 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
253 _ipw_write32(priv, CX2_INDIRECT_ADDR, reg & CX2_INDIRECT_ADDR_MASK);
254 _ipw_write16(priv, CX2_INDIRECT_DATA, value);
255}
256
257/* indirect read s */
258
259static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
260{
261 u32 word;
262 _ipw_write32(priv, CX2_INDIRECT_ADDR, reg & CX2_INDIRECT_ADDR_MASK);
263 IPW_DEBUG_IO(" reg = 0x%8X : \n", reg);
264 word = _ipw_read32(priv, CX2_INDIRECT_DATA);
265 return (word >> ((reg & 0x3)*8)) & 0xff;
266}
267
268static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
269{
270 u32 value;
271
272 IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
273
274 _ipw_write32(priv, CX2_INDIRECT_ADDR, reg);
275 value = _ipw_read32(priv, CX2_INDIRECT_DATA);
276 IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value);
277 return value;
278}
279
280/* iterative/auto-increment 32 bit reads and writes */
281static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
282 int num)
283{
284 u32 aligned_addr = addr & CX2_INDIRECT_ADDR_MASK;
285 u32 dif_len = addr - aligned_addr;
286 u32 aligned_len;
287 u32 i;
Jeff Garzikbf794512005-07-31 13:07:26 -0400288
James Ketrenos43f66a62005-03-25 12:31:53 -0600289 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
290
291 /* Read the first nibble byte by byte */
292 if (unlikely(dif_len)) {
293 /* Start reading at aligned_addr + dif_len */
294 _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
295 for (i = dif_len; i < 4; i++, buf++)
296 *buf = _ipw_read8(priv, CX2_INDIRECT_DATA + i);
297 num -= dif_len;
298 aligned_addr += 4;
299 }
300
301 /* Read DWs through autoinc register */
302 _ipw_write32(priv, CX2_AUTOINC_ADDR, aligned_addr);
303 aligned_len = num & CX2_INDIRECT_ADDR_MASK;
304 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
305 *(u32*)buf = ipw_read32(priv, CX2_AUTOINC_DATA);
Jeff Garzikbf794512005-07-31 13:07:26 -0400306
James Ketrenos43f66a62005-03-25 12:31:53 -0600307 /* Copy the last nibble */
308 dif_len = num - aligned_len;
309 _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
310 for (i = 0; i < dif_len; i++, buf++)
311 *buf = ipw_read8(priv, CX2_INDIRECT_DATA + i);
312}
313
Jeff Garzikbf794512005-07-31 13:07:26 -0400314static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 *buf,
James Ketrenos43f66a62005-03-25 12:31:53 -0600315 int num)
316{
317 u32 aligned_addr = addr & CX2_INDIRECT_ADDR_MASK;
318 u32 dif_len = addr - aligned_addr;
319 u32 aligned_len;
320 u32 i;
Jeff Garzikbf794512005-07-31 13:07:26 -0400321
James Ketrenos43f66a62005-03-25 12:31:53 -0600322 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
Jeff Garzikbf794512005-07-31 13:07:26 -0400323
James Ketrenos43f66a62005-03-25 12:31:53 -0600324 /* Write the first nibble byte by byte */
325 if (unlikely(dif_len)) {
326 /* Start writing at aligned_addr + dif_len */
327 _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
328 for (i = dif_len; i < 4; i++, buf++)
329 _ipw_write8(priv, CX2_INDIRECT_DATA + i, *buf);
330 num -= dif_len;
331 aligned_addr += 4;
332 }
Jeff Garzikbf794512005-07-31 13:07:26 -0400333
James Ketrenos43f66a62005-03-25 12:31:53 -0600334 /* Write DWs through autoinc register */
335 _ipw_write32(priv, CX2_AUTOINC_ADDR, aligned_addr);
336 aligned_len = num & CX2_INDIRECT_ADDR_MASK;
337 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
338 _ipw_write32(priv, CX2_AUTOINC_DATA, *(u32*)buf);
Jeff Garzikbf794512005-07-31 13:07:26 -0400339
James Ketrenos43f66a62005-03-25 12:31:53 -0600340 /* Copy the last nibble */
341 dif_len = num - aligned_len;
342 _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
343 for (i = 0; i < dif_len; i++, buf++)
344 _ipw_write8(priv, CX2_INDIRECT_DATA + i, *buf);
345}
346
Jeff Garzikbf794512005-07-31 13:07:26 -0400347static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
James Ketrenos43f66a62005-03-25 12:31:53 -0600348 int num)
349{
350 memcpy_toio((priv->hw_base + addr), buf, num);
351}
352
353static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
354{
355 ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
356}
357
358static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
359{
360 ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
361}
362
363static inline void ipw_enable_interrupts(struct ipw_priv *priv)
364{
365 if (priv->status & STATUS_INT_ENABLED)
366 return;
367 priv->status |= STATUS_INT_ENABLED;
368 ipw_write32(priv, CX2_INTA_MASK_R, CX2_INTA_MASK_ALL);
369}
370
371static inline void ipw_disable_interrupts(struct ipw_priv *priv)
372{
373 if (!(priv->status & STATUS_INT_ENABLED))
374 return;
375 priv->status &= ~STATUS_INT_ENABLED;
376 ipw_write32(priv, CX2_INTA_MASK_R, ~CX2_INTA_MASK_ALL);
377}
378
379static char *ipw_error_desc(u32 val)
380{
381 switch (val) {
Jeff Garzikbf794512005-07-31 13:07:26 -0400382 case IPW_FW_ERROR_OK:
James Ketrenos43f66a62005-03-25 12:31:53 -0600383 return "ERROR_OK";
Jeff Garzikbf794512005-07-31 13:07:26 -0400384 case IPW_FW_ERROR_FAIL:
James Ketrenos43f66a62005-03-25 12:31:53 -0600385 return "ERROR_FAIL";
Jeff Garzikbf794512005-07-31 13:07:26 -0400386 case IPW_FW_ERROR_MEMORY_UNDERFLOW:
James Ketrenos43f66a62005-03-25 12:31:53 -0600387 return "MEMORY_UNDERFLOW";
Jeff Garzikbf794512005-07-31 13:07:26 -0400388 case IPW_FW_ERROR_MEMORY_OVERFLOW:
James Ketrenos43f66a62005-03-25 12:31:53 -0600389 return "MEMORY_OVERFLOW";
Jeff Garzikbf794512005-07-31 13:07:26 -0400390 case IPW_FW_ERROR_BAD_PARAM:
James Ketrenos43f66a62005-03-25 12:31:53 -0600391 return "ERROR_BAD_PARAM";
Jeff Garzikbf794512005-07-31 13:07:26 -0400392 case IPW_FW_ERROR_BAD_CHECKSUM:
James Ketrenos43f66a62005-03-25 12:31:53 -0600393 return "ERROR_BAD_CHECKSUM";
Jeff Garzikbf794512005-07-31 13:07:26 -0400394 case IPW_FW_ERROR_NMI_INTERRUPT:
James Ketrenos43f66a62005-03-25 12:31:53 -0600395 return "ERROR_NMI_INTERRUPT";
Jeff Garzikbf794512005-07-31 13:07:26 -0400396 case IPW_FW_ERROR_BAD_DATABASE:
James Ketrenos43f66a62005-03-25 12:31:53 -0600397 return "ERROR_BAD_DATABASE";
Jeff Garzikbf794512005-07-31 13:07:26 -0400398 case IPW_FW_ERROR_ALLOC_FAIL:
James Ketrenos43f66a62005-03-25 12:31:53 -0600399 return "ERROR_ALLOC_FAIL";
Jeff Garzikbf794512005-07-31 13:07:26 -0400400 case IPW_FW_ERROR_DMA_UNDERRUN:
James Ketrenos43f66a62005-03-25 12:31:53 -0600401 return "ERROR_DMA_UNDERRUN";
Jeff Garzikbf794512005-07-31 13:07:26 -0400402 case IPW_FW_ERROR_DMA_STATUS:
James Ketrenos43f66a62005-03-25 12:31:53 -0600403 return "ERROR_DMA_STATUS";
Jeff Garzikbf794512005-07-31 13:07:26 -0400404 case IPW_FW_ERROR_DINOSTATUS_ERROR:
James Ketrenos43f66a62005-03-25 12:31:53 -0600405 return "ERROR_DINOSTATUS_ERROR";
Jeff Garzikbf794512005-07-31 13:07:26 -0400406 case IPW_FW_ERROR_EEPROMSTATUS_ERROR:
James Ketrenos43f66a62005-03-25 12:31:53 -0600407 return "ERROR_EEPROMSTATUS_ERROR";
Jeff Garzikbf794512005-07-31 13:07:26 -0400408 case IPW_FW_ERROR_SYSASSERT:
James Ketrenos43f66a62005-03-25 12:31:53 -0600409 return "ERROR_SYSASSERT";
Jeff Garzikbf794512005-07-31 13:07:26 -0400410 case IPW_FW_ERROR_FATAL_ERROR:
James Ketrenos43f66a62005-03-25 12:31:53 -0600411 return "ERROR_FATALSTATUS_ERROR";
Jeff Garzikbf794512005-07-31 13:07:26 -0400412 default:
James Ketrenos43f66a62005-03-25 12:31:53 -0600413 return "UNKNOWNSTATUS_ERROR";
414 }
415}
416
417static void ipw_dump_nic_error_log(struct ipw_priv *priv)
418{
419 u32 desc, time, blink1, blink2, ilink1, ilink2, idata, i, count, base;
420
421 base = ipw_read32(priv, IPWSTATUS_ERROR_LOG);
422 count = ipw_read_reg32(priv, base);
Jeff Garzikbf794512005-07-31 13:07:26 -0400423
James Ketrenos43f66a62005-03-25 12:31:53 -0600424 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
425 IPW_ERROR("Start IPW Error Log Dump:\n");
426 IPW_ERROR("Status: 0x%08X, Config: %08X\n",
427 priv->status, priv->config);
428 }
429
Jeff Garzikbf794512005-07-31 13:07:26 -0400430 for (i = ERROR_START_OFFSET;
431 i <= count * ERROR_ELEM_SIZE;
James Ketrenos43f66a62005-03-25 12:31:53 -0600432 i += ERROR_ELEM_SIZE) {
433 desc = ipw_read_reg32(priv, base + i);
434 time = ipw_read_reg32(priv, base + i + 1*sizeof(u32));
435 blink1 = ipw_read_reg32(priv, base + i + 2*sizeof(u32));
436 blink2 = ipw_read_reg32(priv, base + i + 3*sizeof(u32));
437 ilink1 = ipw_read_reg32(priv, base + i + 4*sizeof(u32));
438 ilink2 = ipw_read_reg32(priv, base + i + 5*sizeof(u32));
439 idata = ipw_read_reg32(priv, base + i + 6*sizeof(u32));
440
441 IPW_ERROR(
Jeff Garzikbf794512005-07-31 13:07:26 -0400442 "%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
443 ipw_error_desc(desc), time, blink1, blink2,
James Ketrenos43f66a62005-03-25 12:31:53 -0600444 ilink1, ilink2, idata);
445 }
446}
447
448static void ipw_dump_nic_event_log(struct ipw_priv *priv)
449{
450 u32 ev, time, data, i, count, base;
451
452 base = ipw_read32(priv, IPW_EVENT_LOG);
453 count = ipw_read_reg32(priv, base);
Jeff Garzikbf794512005-07-31 13:07:26 -0400454
James Ketrenos43f66a62005-03-25 12:31:53 -0600455 if (EVENT_START_OFFSET <= count * EVENT_ELEM_SIZE)
456 IPW_ERROR("Start IPW Event Log Dump:\n");
457
Jeff Garzikbf794512005-07-31 13:07:26 -0400458 for (i = EVENT_START_OFFSET;
459 i <= count * EVENT_ELEM_SIZE;
James Ketrenos43f66a62005-03-25 12:31:53 -0600460 i += EVENT_ELEM_SIZE) {
461 ev = ipw_read_reg32(priv, base + i);
462 time = ipw_read_reg32(priv, base + i + 1*sizeof(u32));
463 data = ipw_read_reg32(priv, base + i + 2*sizeof(u32));
464
465#ifdef CONFIG_IPW_DEBUG
466 IPW_ERROR("%i\t0x%08x\t%i\n", time, data, ev);
467#endif
468 }
469}
470
471static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val,
472 u32 *len)
473{
474 u32 addr, field_info, field_len, field_count, total_len;
475
476 IPW_DEBUG_ORD("ordinal = %i\n", ord);
477
478 if (!priv || !val || !len) {
479 IPW_DEBUG_ORD("Invalid argument\n");
480 return -EINVAL;
481 }
Jeff Garzikbf794512005-07-31 13:07:26 -0400482
James Ketrenos43f66a62005-03-25 12:31:53 -0600483 /* verify device ordinal tables have been initialized */
484 if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
485 IPW_DEBUG_ORD("Access ordinals before initialization\n");
486 return -EINVAL;
487 }
488
489 switch (IPW_ORD_TABLE_ID_MASK & ord) {
490 case IPW_ORD_TABLE_0_MASK:
491 /*
492 * TABLE 0: Direct access to a table of 32 bit values
493 *
Jeff Garzikbf794512005-07-31 13:07:26 -0400494 * This is a very simple table with the data directly
James Ketrenos43f66a62005-03-25 12:31:53 -0600495 * read from the table
496 */
497
498 /* remove the table id from the ordinal */
499 ord &= IPW_ORD_TABLE_VALUE_MASK;
500
501 /* boundary check */
502 if (ord > priv->table0_len) {
503 IPW_DEBUG_ORD("ordinal value (%i) longer then "
504 "max (%i)\n", ord, priv->table0_len);
505 return -EINVAL;
506 }
507
508 /* verify we have enough room to store the value */
509 if (*len < sizeof(u32)) {
510 IPW_DEBUG_ORD("ordinal buffer length too small, "
Jiri Bencaaa4d302005-06-07 14:58:41 +0200511 "need %zd\n", sizeof(u32));
James Ketrenos43f66a62005-03-25 12:31:53 -0600512 return -EINVAL;
513 }
514
515 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
516 ord, priv->table0_addr + (ord << 2));
517
518 *len = sizeof(u32);
519 ord <<= 2;
520 *((u32 *)val) = ipw_read32(priv, priv->table0_addr + ord);
521 break;
522
523 case IPW_ORD_TABLE_1_MASK:
524 /*
525 * TABLE 1: Indirect access to a table of 32 bit values
Jeff Garzikbf794512005-07-31 13:07:26 -0400526 *
527 * This is a fairly large table of u32 values each
James Ketrenos43f66a62005-03-25 12:31:53 -0600528 * representing starting addr for the data (which is
529 * also a u32)
530 */
531
532 /* remove the table id from the ordinal */
533 ord &= IPW_ORD_TABLE_VALUE_MASK;
Jeff Garzikbf794512005-07-31 13:07:26 -0400534
James Ketrenos43f66a62005-03-25 12:31:53 -0600535 /* boundary check */
536 if (ord > priv->table1_len) {
537 IPW_DEBUG_ORD("ordinal value too long\n");
538 return -EINVAL;
539 }
540
541 /* verify we have enough room to store the value */
542 if (*len < sizeof(u32)) {
543 IPW_DEBUG_ORD("ordinal buffer length too small, "
Jiri Bencaaa4d302005-06-07 14:58:41 +0200544 "need %zd\n", sizeof(u32));
James Ketrenos43f66a62005-03-25 12:31:53 -0600545 return -EINVAL;
546 }
547
548 *((u32 *)val) = ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
549 *len = sizeof(u32);
550 break;
551
552 case IPW_ORD_TABLE_2_MASK:
553 /*
554 * TABLE 2: Indirect access to a table of variable sized values
555 *
556 * This table consist of six values, each containing
557 * - dword containing the starting offset of the data
558 * - dword containing the lengh in the first 16bits
559 * and the count in the second 16bits
560 */
561
562 /* remove the table id from the ordinal */
563 ord &= IPW_ORD_TABLE_VALUE_MASK;
564
565 /* boundary check */
566 if (ord > priv->table2_len) {
567 IPW_DEBUG_ORD("ordinal value too long\n");
568 return -EINVAL;
569 }
570
571 /* get the address of statistic */
572 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
Jeff Garzikbf794512005-07-31 13:07:26 -0400573
574 /* get the second DW of statistics ;
James Ketrenos43f66a62005-03-25 12:31:53 -0600575 * two 16-bit words - first is length, second is count */
576 field_info = ipw_read_reg32(priv, priv->table2_addr + (ord << 3) + sizeof(u32));
Jeff Garzikbf794512005-07-31 13:07:26 -0400577
James Ketrenos43f66a62005-03-25 12:31:53 -0600578 /* get each entry length */
579 field_len = *((u16 *)&field_info);
Jeff Garzikbf794512005-07-31 13:07:26 -0400580
James Ketrenos43f66a62005-03-25 12:31:53 -0600581 /* get number of entries */
582 field_count = *(((u16 *)&field_info) + 1);
Jeff Garzikbf794512005-07-31 13:07:26 -0400583
James Ketrenos43f66a62005-03-25 12:31:53 -0600584 /* abort if not enought memory */
585 total_len = field_len * field_count;
586 if (total_len > *len) {
587 *len = total_len;
588 return -EINVAL;
589 }
Jeff Garzikbf794512005-07-31 13:07:26 -0400590
James Ketrenos43f66a62005-03-25 12:31:53 -0600591 *len = total_len;
592 if (!total_len)
593 return 0;
594
595 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
Jeff Garzikbf794512005-07-31 13:07:26 -0400596 "field_info = 0x%08x\n",
James Ketrenos43f66a62005-03-25 12:31:53 -0600597 addr, total_len, field_info);
598 ipw_read_indirect(priv, addr, val, total_len);
599 break;
600
601 default:
602 IPW_DEBUG_ORD("Invalid ordinal!\n");
603 return -EINVAL;
604
605 }
606
Jeff Garzikbf794512005-07-31 13:07:26 -0400607
James Ketrenos43f66a62005-03-25 12:31:53 -0600608 return 0;
609}
610
611static void ipw_init_ordinals(struct ipw_priv *priv)
612{
613 priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
Jeff Garzikbf794512005-07-31 13:07:26 -0400614 priv->table0_len = ipw_read32(priv, priv->table0_addr);
James Ketrenos43f66a62005-03-25 12:31:53 -0600615
616 IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
617 priv->table0_addr, priv->table0_len);
618
619 priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
620 priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
621
622 IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
623 priv->table1_addr, priv->table1_len);
624
625 priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
626 priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
627 priv->table2_len &= 0x0000ffff; /* use first two bytes */
628
629 IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
630 priv->table2_addr, priv->table2_len);
631
632}
633
634/*
635 * The following adds a new attribute to the sysfs representation
636 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
637 * used for controling the debug level.
Jeff Garzikbf794512005-07-31 13:07:26 -0400638 *
James Ketrenos43f66a62005-03-25 12:31:53 -0600639 * See the level definitions in ipw for details.
640 */
641static ssize_t show_debug_level(struct device_driver *d, char *buf)
642{
643 return sprintf(buf, "0x%08X\n", ipw_debug_level);
644}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700645static ssize_t store_debug_level(struct device_driver *d,
646 const char *buf, size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600647{
648 char *p = (char *)buf;
649 u32 val;
650
651 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
652 p++;
653 if (p[0] == 'x' || p[0] == 'X')
654 p++;
655 val = simple_strtoul(p, &p, 16);
656 } else
657 val = simple_strtoul(p, &p, 10);
Jeff Garzikbf794512005-07-31 13:07:26 -0400658 if (p == buf)
659 printk(KERN_INFO DRV_NAME
James Ketrenos43f66a62005-03-25 12:31:53 -0600660 ": %s is not in hex or decimal form.\n", buf);
661 else
662 ipw_debug_level = val;
663
664 return strnlen(buf, count);
665}
666
Jeff Garzikbf794512005-07-31 13:07:26 -0400667static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
James Ketrenos43f66a62005-03-25 12:31:53 -0600668 show_debug_level, store_debug_level);
669
Andrew Mortonad3fee52005-06-20 14:30:36 -0700670static ssize_t show_status(struct device *d,
671 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600672{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700673 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600674 return sprintf(buf, "0x%08x\n", (int)p->status);
675}
676static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
677
Andrew Mortonad3fee52005-06-20 14:30:36 -0700678static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
679 char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600680{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700681 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600682 return sprintf(buf, "0x%08x\n", (int)p->config);
683}
684static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
685
Andrew Mortonad3fee52005-06-20 14:30:36 -0700686static ssize_t show_nic_type(struct device *d,
687 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600688{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700689 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600690 u8 type = p->eeprom[EEPROM_NIC_TYPE];
691
692 switch (type) {
693 case EEPROM_NIC_TYPE_STANDARD:
694 return sprintf(buf, "STANDARD\n");
695 case EEPROM_NIC_TYPE_DELL:
696 return sprintf(buf, "DELL\n");
697 case EEPROM_NIC_TYPE_FUJITSU:
698 return sprintf(buf, "FUJITSU\n");
699 case EEPROM_NIC_TYPE_IBM:
700 return sprintf(buf, "IBM\n");
701 case EEPROM_NIC_TYPE_HP:
702 return sprintf(buf, "HP\n");
703 }
Jeff Garzikbf794512005-07-31 13:07:26 -0400704
James Ketrenos43f66a62005-03-25 12:31:53 -0600705 return sprintf(buf, "UNKNOWN\n");
706}
707static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
708
Andrew Mortonad3fee52005-06-20 14:30:36 -0700709static ssize_t dump_error_log(struct device *d,
710 struct device_attribute *attr, const char *buf, size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600711{
712 char *p = (char *)buf;
713
Jeff Garzikbf794512005-07-31 13:07:26 -0400714 if (p[0] == '1')
James Ketrenos43f66a62005-03-25 12:31:53 -0600715 ipw_dump_nic_error_log((struct ipw_priv*)d->driver_data);
716
717 return strnlen(buf, count);
718}
719static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
720
Andrew Mortonad3fee52005-06-20 14:30:36 -0700721static ssize_t dump_event_log(struct device *d,
722 struct device_attribute *attr, const char *buf, size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600723{
724 char *p = (char *)buf;
725
Jeff Garzikbf794512005-07-31 13:07:26 -0400726 if (p[0] == '1')
James Ketrenos43f66a62005-03-25 12:31:53 -0600727 ipw_dump_nic_event_log((struct ipw_priv*)d->driver_data);
728
729 return strnlen(buf, count);
730}
731static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
732
Andrew Mortonad3fee52005-06-20 14:30:36 -0700733static ssize_t show_ucode_version(struct device *d,
734 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600735{
736 u32 len = sizeof(u32), tmp = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700737 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600738
739 if(ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
740 return 0;
741
742 return sprintf(buf, "0x%08x\n", tmp);
743}
744static DEVICE_ATTR(ucode_version, S_IWUSR|S_IRUGO, show_ucode_version, NULL);
745
Andrew Mortonad3fee52005-06-20 14:30:36 -0700746static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
747 char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600748{
749 u32 len = sizeof(u32), tmp = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700750 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600751
752 if(ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
753 return 0;
754
755 return sprintf(buf, "0x%08x\n", tmp);
756}
757static DEVICE_ATTR(rtc, S_IWUSR|S_IRUGO, show_rtc, NULL);
758
759/*
760 * Add a device attribute to view/control the delay between eeprom
761 * operations.
762 */
Andrew Mortonad3fee52005-06-20 14:30:36 -0700763static ssize_t show_eeprom_delay(struct device *d,
764 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600765{
766 int n = ((struct ipw_priv*)d->driver_data)->eeprom_delay;
767 return sprintf(buf, "%i\n", n);
768}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700769static ssize_t store_eeprom_delay(struct device *d,
770 struct device_attribute *attr, const char *buf,
771 size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600772{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700773 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600774 sscanf(buf, "%i", &p->eeprom_delay);
775 return strnlen(buf, count);
776}
Jeff Garzikbf794512005-07-31 13:07:26 -0400777static DEVICE_ATTR(eeprom_delay, S_IWUSR|S_IRUGO,
James Ketrenos43f66a62005-03-25 12:31:53 -0600778 show_eeprom_delay,store_eeprom_delay);
779
Andrew Mortonad3fee52005-06-20 14:30:36 -0700780static ssize_t show_command_event_reg(struct device *d,
781 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600782{
783 u32 reg = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700784 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600785
786 reg = ipw_read_reg32(p, CX2_INTERNAL_CMD_EVENT);
787 return sprintf(buf, "0x%08x\n", reg);
788}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700789static ssize_t store_command_event_reg(struct device *d,
790 struct device_attribute *attr, const char *buf,
791 size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600792{
793 u32 reg;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700794 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600795
796 sscanf(buf, "%x", &reg);
797 ipw_write_reg32(p, CX2_INTERNAL_CMD_EVENT, reg);
798 return strnlen(buf, count);
799}
Jeff Garzikbf794512005-07-31 13:07:26 -0400800static DEVICE_ATTR(command_event_reg, S_IWUSR|S_IRUGO,
James Ketrenos43f66a62005-03-25 12:31:53 -0600801 show_command_event_reg,store_command_event_reg);
802
Andrew Mortonad3fee52005-06-20 14:30:36 -0700803static ssize_t show_mem_gpio_reg(struct device *d,
804 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600805{
806 u32 reg = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700807 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600808
809 reg = ipw_read_reg32(p, 0x301100);
810 return sprintf(buf, "0x%08x\n", reg);
811}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700812static ssize_t store_mem_gpio_reg(struct device *d,
813 struct device_attribute *attr, const char *buf,
814 size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600815{
816 u32 reg;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700817 struct ipw_priv *p = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600818
819 sscanf(buf, "%x", &reg);
820 ipw_write_reg32(p, 0x301100, reg);
821 return strnlen(buf, count);
822}
823static DEVICE_ATTR(mem_gpio_reg, S_IWUSR|S_IRUGO,
824 show_mem_gpio_reg,store_mem_gpio_reg);
825
Andrew Mortonad3fee52005-06-20 14:30:36 -0700826static ssize_t show_indirect_dword(struct device *d,
827 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600828{
829 u32 reg = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700830 struct ipw_priv *priv = d->driver_data;
Jeff Garzikbf794512005-07-31 13:07:26 -0400831 if (priv->status & STATUS_INDIRECT_DWORD)
James Ketrenos43f66a62005-03-25 12:31:53 -0600832 reg = ipw_read_reg32(priv, priv->indirect_dword);
Jeff Garzikbf794512005-07-31 13:07:26 -0400833 else
James Ketrenos43f66a62005-03-25 12:31:53 -0600834 reg = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -0400835
James Ketrenos43f66a62005-03-25 12:31:53 -0600836 return sprintf(buf, "0x%08x\n", reg);
837}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700838static ssize_t store_indirect_dword(struct device *d,
839 struct device_attribute *attr, const char *buf,
840 size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600841{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700842 struct ipw_priv *priv = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600843
844 sscanf(buf, "%x", &priv->indirect_dword);
845 priv->status |= STATUS_INDIRECT_DWORD;
846 return strnlen(buf, count);
847}
Jeff Garzikbf794512005-07-31 13:07:26 -0400848static DEVICE_ATTR(indirect_dword, S_IWUSR|S_IRUGO,
James Ketrenos43f66a62005-03-25 12:31:53 -0600849 show_indirect_dword,store_indirect_dword);
850
Andrew Mortonad3fee52005-06-20 14:30:36 -0700851static ssize_t show_indirect_byte(struct device *d,
852 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600853{
854 u8 reg = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700855 struct ipw_priv *priv = d->driver_data;
Jeff Garzikbf794512005-07-31 13:07:26 -0400856 if (priv->status & STATUS_INDIRECT_BYTE)
James Ketrenos43f66a62005-03-25 12:31:53 -0600857 reg = ipw_read_reg8(priv, priv->indirect_byte);
Jeff Garzikbf794512005-07-31 13:07:26 -0400858 else
James Ketrenos43f66a62005-03-25 12:31:53 -0600859 reg = 0;
860
861 return sprintf(buf, "0x%02x\n", reg);
862}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700863static ssize_t store_indirect_byte(struct device *d,
864 struct device_attribute *attr, const char *buf,
865 size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600866{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700867 struct ipw_priv *priv = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600868
869 sscanf(buf, "%x", &priv->indirect_byte);
870 priv->status |= STATUS_INDIRECT_BYTE;
871 return strnlen(buf, count);
872}
Jeff Garzikbf794512005-07-31 13:07:26 -0400873static DEVICE_ATTR(indirect_byte, S_IWUSR|S_IRUGO,
James Ketrenos43f66a62005-03-25 12:31:53 -0600874 show_indirect_byte, store_indirect_byte);
875
Andrew Mortonad3fee52005-06-20 14:30:36 -0700876static ssize_t show_direct_dword(struct device *d,
877 struct device_attribute *attr, char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600878{
879 u32 reg = 0;
Andrew Mortonad3fee52005-06-20 14:30:36 -0700880 struct ipw_priv *priv = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600881
Jeff Garzikbf794512005-07-31 13:07:26 -0400882 if (priv->status & STATUS_DIRECT_DWORD)
James Ketrenos43f66a62005-03-25 12:31:53 -0600883 reg = ipw_read32(priv, priv->direct_dword);
Jeff Garzikbf794512005-07-31 13:07:26 -0400884 else
James Ketrenos43f66a62005-03-25 12:31:53 -0600885 reg = 0;
886
887 return sprintf(buf, "0x%08x\n", reg);
888}
Andrew Mortonad3fee52005-06-20 14:30:36 -0700889static ssize_t store_direct_dword(struct device *d,
890 struct device_attribute *attr, const char *buf,
891 size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600892{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700893 struct ipw_priv *priv = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600894
895 sscanf(buf, "%x", &priv->direct_dword);
896 priv->status |= STATUS_DIRECT_DWORD;
897 return strnlen(buf, count);
898}
Jeff Garzikbf794512005-07-31 13:07:26 -0400899static DEVICE_ATTR(direct_dword, S_IWUSR|S_IRUGO,
James Ketrenos43f66a62005-03-25 12:31:53 -0600900 show_direct_dword,store_direct_dword);
901
902
903static inline int rf_kill_active(struct ipw_priv *priv)
904{
905 if (0 == (ipw_read32(priv, 0x30) & 0x10000))
906 priv->status |= STATUS_RF_KILL_HW;
907 else
908 priv->status &= ~STATUS_RF_KILL_HW;
909
910 return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
911}
912
Andrew Mortonad3fee52005-06-20 14:30:36 -0700913static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
914 char *buf)
James Ketrenos43f66a62005-03-25 12:31:53 -0600915{
916 /* 0 - RF kill not enabled
Jeff Garzikbf794512005-07-31 13:07:26 -0400917 1 - SW based RF kill active (sysfs)
James Ketrenos43f66a62005-03-25 12:31:53 -0600918 2 - HW based RF kill active
919 3 - Both HW and SW baed RF kill active */
Andrew Mortonad3fee52005-06-20 14:30:36 -0700920 struct ipw_priv *priv = d->driver_data;
James Ketrenos43f66a62005-03-25 12:31:53 -0600921 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
922 (rf_kill_active(priv) ? 0x2 : 0x0);
923 return sprintf(buf, "%i\n", val);
924}
925
926static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
927{
Jeff Garzikbf794512005-07-31 13:07:26 -0400928 if ((disable_radio ? 1 : 0) ==
James Ketrenos43f66a62005-03-25 12:31:53 -0600929 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
930 return 0 ;
931
932 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
933 disable_radio ? "OFF" : "ON");
934
935 if (disable_radio) {
936 priv->status |= STATUS_RF_KILL_SW;
937
Jeff Garzikbf794512005-07-31 13:07:26 -0400938 if (priv->workqueue) {
James Ketrenos43f66a62005-03-25 12:31:53 -0600939 cancel_delayed_work(&priv->request_scan);
940 }
941 wake_up_interruptible(&priv->wait_command_queue);
942 queue_work(priv->workqueue, &priv->down);
943 } else {
944 priv->status &= ~STATUS_RF_KILL_SW;
945 if (rf_kill_active(priv)) {
946 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
947 "disabled by HW switch\n");
948 /* Make sure the RF_KILL check timer is running */
949 cancel_delayed_work(&priv->rf_kill);
Jeff Garzikbf794512005-07-31 13:07:26 -0400950 queue_delayed_work(priv->workqueue, &priv->rf_kill,
James Ketrenos43f66a62005-03-25 12:31:53 -0600951 2 * HZ);
Jeff Garzikbf794512005-07-31 13:07:26 -0400952 } else
James Ketrenos43f66a62005-03-25 12:31:53 -0600953 queue_work(priv->workqueue, &priv->up);
954 }
955
956 return 1;
957}
958
Andrew Mortonad3fee52005-06-20 14:30:36 -0700959static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
960 const char *buf, size_t count)
James Ketrenos43f66a62005-03-25 12:31:53 -0600961{
Andrew Mortonad3fee52005-06-20 14:30:36 -0700962 struct ipw_priv *priv = d->driver_data;
Jeff Garzikbf794512005-07-31 13:07:26 -0400963
James Ketrenos43f66a62005-03-25 12:31:53 -0600964 ipw_radio_kill_sw(priv, buf[0] == '1');
965
966 return count;
967}
968static DEVICE_ATTR(rf_kill, S_IWUSR|S_IRUGO, show_rf_kill, store_rf_kill);
969
970static void ipw_irq_tasklet(struct ipw_priv *priv)
971{
972 u32 inta, inta_mask, handled = 0;
973 unsigned long flags;
974 int rc = 0;
975
976 spin_lock_irqsave(&priv->lock, flags);
977
978 inta = ipw_read32(priv, CX2_INTA_RW);
979 inta_mask = ipw_read32(priv, CX2_INTA_MASK_R);
980 inta &= (CX2_INTA_MASK_ALL & inta_mask);
981
982 /* Add any cached INTA values that need to be handled */
983 inta |= priv->isr_inta;
984
985 /* handle all the justifications for the interrupt */
986 if (inta & CX2_INTA_BIT_RX_TRANSFER) {
987 ipw_rx(priv);
988 handled |= CX2_INTA_BIT_RX_TRANSFER;
989 }
990
991 if (inta & CX2_INTA_BIT_TX_CMD_QUEUE) {
992 IPW_DEBUG_HC("Command completed.\n");
993 rc = ipw_queue_tx_reclaim( priv, &priv->txq_cmd, -1);
994 priv->status &= ~STATUS_HCMD_ACTIVE;
995 wake_up_interruptible(&priv->wait_command_queue);
996 handled |= CX2_INTA_BIT_TX_CMD_QUEUE;
997 }
998
999 if (inta & CX2_INTA_BIT_TX_QUEUE_1) {
1000 IPW_DEBUG_TX("TX_QUEUE_1\n");
1001 rc = ipw_queue_tx_reclaim( priv, &priv->txq[0], 0);
1002 handled |= CX2_INTA_BIT_TX_QUEUE_1;
1003 }
1004
1005 if (inta & CX2_INTA_BIT_TX_QUEUE_2) {
1006 IPW_DEBUG_TX("TX_QUEUE_2\n");
1007 rc = ipw_queue_tx_reclaim( priv, &priv->txq[1], 1);
1008 handled |= CX2_INTA_BIT_TX_QUEUE_2;
1009 }
1010
1011 if (inta & CX2_INTA_BIT_TX_QUEUE_3) {
1012 IPW_DEBUG_TX("TX_QUEUE_3\n");
1013 rc = ipw_queue_tx_reclaim( priv, &priv->txq[2], 2);
1014 handled |= CX2_INTA_BIT_TX_QUEUE_3;
1015 }
1016
1017 if (inta & CX2_INTA_BIT_TX_QUEUE_4) {
1018 IPW_DEBUG_TX("TX_QUEUE_4\n");
1019 rc = ipw_queue_tx_reclaim( priv, &priv->txq[3], 3);
1020 handled |= CX2_INTA_BIT_TX_QUEUE_4;
1021 }
1022
1023 if (inta & CX2_INTA_BIT_STATUS_CHANGE) {
1024 IPW_WARNING("STATUS_CHANGE\n");
1025 handled |= CX2_INTA_BIT_STATUS_CHANGE;
1026 }
1027
1028 if (inta & CX2_INTA_BIT_BEACON_PERIOD_EXPIRED) {
1029 IPW_WARNING("TX_PERIOD_EXPIRED\n");
1030 handled |= CX2_INTA_BIT_BEACON_PERIOD_EXPIRED;
1031 }
1032
1033 if (inta & CX2_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
1034 IPW_WARNING("HOST_CMD_DONE\n");
1035 handled |= CX2_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
1036 }
1037
1038 if (inta & CX2_INTA_BIT_FW_INITIALIZATION_DONE) {
1039 IPW_WARNING("FW_INITIALIZATION_DONE\n");
1040 handled |= CX2_INTA_BIT_FW_INITIALIZATION_DONE;
1041 }
1042
1043 if (inta & CX2_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
1044 IPW_WARNING("PHY_OFF_DONE\n");
1045 handled |= CX2_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
1046 }
1047
1048 if (inta & CX2_INTA_BIT_RF_KILL_DONE) {
1049 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
1050 priv->status |= STATUS_RF_KILL_HW;
1051 wake_up_interruptible(&priv->wait_command_queue);
1052 netif_carrier_off(priv->net_dev);
1053 netif_stop_queue(priv->net_dev);
1054 cancel_delayed_work(&priv->request_scan);
1055 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
1056 handled |= CX2_INTA_BIT_RF_KILL_DONE;
1057 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001058
James Ketrenos43f66a62005-03-25 12:31:53 -06001059 if (inta & CX2_INTA_BIT_FATAL_ERROR) {
1060 IPW_ERROR("Firmware error detected. Restarting.\n");
1061#ifdef CONFIG_IPW_DEBUG
1062 if (ipw_debug_level & IPW_DL_FW_ERRORS) {
1063 ipw_dump_nic_error_log(priv);
1064 ipw_dump_nic_event_log(priv);
1065 }
1066#endif
1067 queue_work(priv->workqueue, &priv->adapter_restart);
1068 handled |= CX2_INTA_BIT_FATAL_ERROR;
1069 }
1070
1071 if (inta & CX2_INTA_BIT_PARITY_ERROR) {
1072 IPW_ERROR("Parity error\n");
1073 handled |= CX2_INTA_BIT_PARITY_ERROR;
1074 }
1075
1076 if (handled != inta) {
Jeff Garzikbf794512005-07-31 13:07:26 -04001077 IPW_ERROR("Unhandled INTA bits 0x%08x\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06001078 inta & ~handled);
1079 }
1080
1081 /* enable all interrupts */
1082 ipw_enable_interrupts(priv);
1083
1084 spin_unlock_irqrestore(&priv->lock, flags);
1085}
Jeff Garzikbf794512005-07-31 13:07:26 -04001086
James Ketrenos43f66a62005-03-25 12:31:53 -06001087#ifdef CONFIG_IPW_DEBUG
1088#define IPW_CMD(x) case IPW_CMD_ ## x : return #x
1089static char *get_cmd_string(u8 cmd)
1090{
1091 switch (cmd) {
1092 IPW_CMD(HOST_COMPLETE);
Jeff Garzikbf794512005-07-31 13:07:26 -04001093 IPW_CMD(POWER_DOWN);
1094 IPW_CMD(SYSTEM_CONFIG);
1095 IPW_CMD(MULTICAST_ADDRESS);
1096 IPW_CMD(SSID);
1097 IPW_CMD(ADAPTER_ADDRESS);
1098 IPW_CMD(PORT_TYPE);
1099 IPW_CMD(RTS_THRESHOLD);
1100 IPW_CMD(FRAG_THRESHOLD);
1101 IPW_CMD(POWER_MODE);
1102 IPW_CMD(WEP_KEY);
1103 IPW_CMD(TGI_TX_KEY);
1104 IPW_CMD(SCAN_REQUEST);
1105 IPW_CMD(SCAN_REQUEST_EXT);
1106 IPW_CMD(ASSOCIATE);
1107 IPW_CMD(SUPPORTED_RATES);
1108 IPW_CMD(SCAN_ABORT);
1109 IPW_CMD(TX_FLUSH);
1110 IPW_CMD(QOS_PARAMETERS);
1111 IPW_CMD(DINO_CONFIG);
1112 IPW_CMD(RSN_CAPABILITIES);
1113 IPW_CMD(RX_KEY);
1114 IPW_CMD(CARD_DISABLE);
1115 IPW_CMD(SEED_NUMBER);
1116 IPW_CMD(TX_POWER);
1117 IPW_CMD(COUNTRY_INFO);
1118 IPW_CMD(AIRONET_INFO);
1119 IPW_CMD(AP_TX_POWER);
1120 IPW_CMD(CCKM_INFO);
1121 IPW_CMD(CCX_VER_INFO);
1122 IPW_CMD(SET_CALIBRATION);
1123 IPW_CMD(SENSITIVITY_CALIB);
1124 IPW_CMD(RETRY_LIMIT);
1125 IPW_CMD(IPW_PRE_POWER_DOWN);
1126 IPW_CMD(VAP_BEACON_TEMPLATE);
1127 IPW_CMD(VAP_DTIM_PERIOD);
1128 IPW_CMD(EXT_SUPPORTED_RATES);
1129 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
1130 IPW_CMD(VAP_QUIET_INTERVALS);
1131 IPW_CMD(VAP_CHANNEL_SWITCH);
1132 IPW_CMD(VAP_MANDATORY_CHANNELS);
1133 IPW_CMD(VAP_CELL_PWR_LIMIT);
1134 IPW_CMD(VAP_CF_PARAM_SET);
1135 IPW_CMD(VAP_SET_BEACONING_STATE);
1136 IPW_CMD(MEASUREMENT);
1137 IPW_CMD(POWER_CAPABILITY);
1138 IPW_CMD(SUPPORTED_CHANNELS);
1139 IPW_CMD(TPC_REPORT);
1140 IPW_CMD(WME_INFO);
1141 IPW_CMD(PRODUCTION_COMMAND);
1142 default:
James Ketrenos43f66a62005-03-25 12:31:53 -06001143 return "UNKNOWN";
1144 }
1145}
1146#endif /* CONFIG_IPW_DEBUG */
1147
1148#define HOST_COMPLETE_TIMEOUT HZ
1149static int ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
1150{
1151 int rc = 0;
1152
1153 if (priv->status & STATUS_HCMD_ACTIVE) {
1154 IPW_ERROR("Already sending a command\n");
1155 return -1;
1156 }
1157
1158 priv->status |= STATUS_HCMD_ACTIVE;
Jeff Garzikbf794512005-07-31 13:07:26 -04001159
1160 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06001161 get_cmd_string(cmd->cmd), cmd->cmd, cmd->len);
1162 printk_buf(IPW_DL_HOST_COMMAND, (u8*)cmd->param, cmd->len);
1163
1164 rc = ipw_queue_tx_hcmd(priv, cmd->cmd, &cmd->param, cmd->len, 0);
1165 if (rc)
1166 return rc;
1167
1168 rc = wait_event_interruptible_timeout(
1169 priv->wait_command_queue, !(priv->status & STATUS_HCMD_ACTIVE),
1170 HOST_COMPLETE_TIMEOUT);
1171 if (rc == 0) {
1172 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
Jeff Garzik9bd481f2005-06-28 01:46:35 -04001173 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
James Ketrenos43f66a62005-03-25 12:31:53 -06001174 priv->status &= ~STATUS_HCMD_ACTIVE;
1175 return -EIO;
1176 }
1177 if (priv->status & STATUS_RF_KILL_MASK) {
1178 IPW_DEBUG_INFO("Command aborted due to RF Kill Switch\n");
1179 return -EIO;
1180 }
1181
1182 return 0;
1183}
1184
1185static int ipw_send_host_complete(struct ipw_priv *priv)
1186{
1187 struct host_cmd cmd = {
1188 .cmd = IPW_CMD_HOST_COMPLETE,
1189 .len = 0
1190 };
1191
1192 if (!priv) {
1193 IPW_ERROR("Invalid args\n");
1194 return -1;
1195 }
1196
1197 if (ipw_send_cmd(priv, &cmd)) {
1198 IPW_ERROR("failed to send HOST_COMPLETE command\n");
1199 return -1;
1200 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001201
James Ketrenos43f66a62005-03-25 12:31:53 -06001202 return 0;
1203}
1204
Jeff Garzikbf794512005-07-31 13:07:26 -04001205static int ipw_send_system_config(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06001206 struct ipw_sys_config *config)
1207{
1208 struct host_cmd cmd = {
1209 .cmd = IPW_CMD_SYSTEM_CONFIG,
1210 .len = sizeof(*config)
1211 };
1212
1213 if (!priv || !config) {
1214 IPW_ERROR("Invalid args\n");
1215 return -1;
1216 }
1217
1218 memcpy(&cmd.param,config,sizeof(*config));
1219 if (ipw_send_cmd(priv, &cmd)) {
1220 IPW_ERROR("failed to send SYSTEM_CONFIG command\n");
1221 return -1;
1222 }
1223
1224 return 0;
1225}
1226
1227static int ipw_send_ssid(struct ipw_priv *priv, u8 *ssid, int len)
1228{
1229 struct host_cmd cmd = {
1230 .cmd = IPW_CMD_SSID,
1231 .len = min(len, IW_ESSID_MAX_SIZE)
1232 };
1233
1234 if (!priv || !ssid) {
1235 IPW_ERROR("Invalid args\n");
1236 return -1;
1237 }
1238
1239 memcpy(&cmd.param, ssid, cmd.len);
1240 if (ipw_send_cmd(priv, &cmd)) {
1241 IPW_ERROR("failed to send SSID command\n");
1242 return -1;
1243 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001244
James Ketrenos43f66a62005-03-25 12:31:53 -06001245 return 0;
1246}
1247
1248static int ipw_send_adapter_address(struct ipw_priv *priv, u8 *mac)
1249{
1250 struct host_cmd cmd = {
1251 .cmd = IPW_CMD_ADAPTER_ADDRESS,
1252 .len = ETH_ALEN
1253 };
1254
1255 if (!priv || !mac) {
1256 IPW_ERROR("Invalid args\n");
1257 return -1;
1258 }
1259
1260 IPW_DEBUG_INFO("%s: Setting MAC to " MAC_FMT "\n",
1261 priv->net_dev->name, MAC_ARG(mac));
1262
1263 memcpy(&cmd.param, mac, ETH_ALEN);
1264
1265 if (ipw_send_cmd(priv, &cmd)) {
1266 IPW_ERROR("failed to send ADAPTER_ADDRESS command\n");
1267 return -1;
1268 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001269
James Ketrenos43f66a62005-03-25 12:31:53 -06001270 return 0;
1271}
1272
1273static void ipw_adapter_restart(void *adapter)
1274{
1275 struct ipw_priv *priv = adapter;
1276
1277 if (priv->status & STATUS_RF_KILL_MASK)
1278 return;
1279
1280 ipw_down(priv);
1281 if (ipw_up(priv)) {
1282 IPW_ERROR("Failed to up device\n");
1283 return;
1284 }
1285}
1286
1287
1288
1289
1290#define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
1291
1292static void ipw_scan_check(void *data)
1293{
1294 struct ipw_priv *priv = data;
1295 if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
1296 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
Jeff Garzikbf794512005-07-31 13:07:26 -04001297 "adapter (%dms).\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06001298 IPW_SCAN_CHECK_WATCHDOG / 100);
1299 ipw_adapter_restart(priv);
1300 }
1301}
1302
1303static int ipw_send_scan_request_ext(struct ipw_priv *priv,
1304 struct ipw_scan_request_ext *request)
1305{
1306 struct host_cmd cmd = {
1307 .cmd = IPW_CMD_SCAN_REQUEST_EXT,
1308 .len = sizeof(*request)
1309 };
1310
1311 if (!priv || !request) {
1312 IPW_ERROR("Invalid args\n");
1313 return -1;
1314 }
1315
1316 memcpy(&cmd.param,request,sizeof(*request));
1317 if (ipw_send_cmd(priv, &cmd)) {
1318 IPW_ERROR("failed to send SCAN_REQUEST_EXT command\n");
1319 return -1;
1320 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001321
1322 queue_delayed_work(priv->workqueue, &priv->scan_check,
James Ketrenos43f66a62005-03-25 12:31:53 -06001323 IPW_SCAN_CHECK_WATCHDOG);
1324 return 0;
1325}
1326
1327static int ipw_send_scan_abort(struct ipw_priv *priv)
1328{
1329 struct host_cmd cmd = {
1330 .cmd = IPW_CMD_SCAN_ABORT,
1331 .len = 0
1332 };
1333
1334 if (!priv) {
1335 IPW_ERROR("Invalid args\n");
1336 return -1;
1337 }
1338
1339 if (ipw_send_cmd(priv, &cmd)) {
1340 IPW_ERROR("failed to send SCAN_ABORT command\n");
1341 return -1;
1342 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001343
James Ketrenos43f66a62005-03-25 12:31:53 -06001344 return 0;
1345}
1346
1347static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
1348{
1349 struct host_cmd cmd = {
1350 .cmd = IPW_CMD_SENSITIVITY_CALIB,
1351 .len = sizeof(struct ipw_sensitivity_calib)
1352 };
1353 struct ipw_sensitivity_calib *calib = (struct ipw_sensitivity_calib *)
1354 &cmd.param;
1355 calib->beacon_rssi_raw = sens;
1356 if (ipw_send_cmd(priv, &cmd)) {
1357 IPW_ERROR("failed to send SENSITIVITY CALIB command\n");
1358 return -1;
1359 }
1360
1361 return 0;
1362}
1363
1364static int ipw_send_associate(struct ipw_priv *priv,
1365 struct ipw_associate *associate)
1366{
1367 struct host_cmd cmd = {
1368 .cmd = IPW_CMD_ASSOCIATE,
1369 .len = sizeof(*associate)
1370 };
1371
1372 if (!priv || !associate) {
1373 IPW_ERROR("Invalid args\n");
1374 return -1;
1375 }
1376
1377 memcpy(&cmd.param,associate,sizeof(*associate));
1378 if (ipw_send_cmd(priv, &cmd)) {
1379 IPW_ERROR("failed to send ASSOCIATE command\n");
1380 return -1;
1381 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001382
James Ketrenos43f66a62005-03-25 12:31:53 -06001383 return 0;
1384}
1385
1386static int ipw_send_supported_rates(struct ipw_priv *priv,
1387 struct ipw_supported_rates *rates)
1388{
1389 struct host_cmd cmd = {
1390 .cmd = IPW_CMD_SUPPORTED_RATES,
1391 .len = sizeof(*rates)
1392 };
1393
1394 if (!priv || !rates) {
1395 IPW_ERROR("Invalid args\n");
1396 return -1;
1397 }
1398
1399 memcpy(&cmd.param,rates,sizeof(*rates));
1400 if (ipw_send_cmd(priv, &cmd)) {
1401 IPW_ERROR("failed to send SUPPORTED_RATES command\n");
1402 return -1;
1403 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001404
James Ketrenos43f66a62005-03-25 12:31:53 -06001405 return 0;
1406}
1407
1408static int ipw_set_random_seed(struct ipw_priv *priv)
1409{
1410 struct host_cmd cmd = {
1411 .cmd = IPW_CMD_SEED_NUMBER,
1412 .len = sizeof(u32)
1413 };
1414
1415 if (!priv) {
1416 IPW_ERROR("Invalid args\n");
1417 return -1;
1418 }
1419
1420 get_random_bytes(&cmd.param, sizeof(u32));
1421
1422 if (ipw_send_cmd(priv, &cmd)) {
1423 IPW_ERROR("failed to send SEED_NUMBER command\n");
1424 return -1;
1425 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001426
James Ketrenos43f66a62005-03-25 12:31:53 -06001427 return 0;
1428}
1429
1430#if 0
1431static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
1432{
1433 struct host_cmd cmd = {
1434 .cmd = IPW_CMD_CARD_DISABLE,
1435 .len = sizeof(u32)
1436 };
1437
1438 if (!priv) {
1439 IPW_ERROR("Invalid args\n");
1440 return -1;
1441 }
1442
1443 *((u32*)&cmd.param) = phy_off;
1444
1445 if (ipw_send_cmd(priv, &cmd)) {
1446 IPW_ERROR("failed to send CARD_DISABLE command\n");
1447 return -1;
1448 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001449
James Ketrenos43f66a62005-03-25 12:31:53 -06001450 return 0;
1451}
1452#endif
1453
1454static int ipw_send_tx_power(struct ipw_priv *priv,
1455 struct ipw_tx_power *power)
1456{
1457 struct host_cmd cmd = {
1458 .cmd = IPW_CMD_TX_POWER,
1459 .len = sizeof(*power)
1460 };
1461
1462 if (!priv || !power) {
1463 IPW_ERROR("Invalid args\n");
1464 return -1;
1465 }
1466
1467 memcpy(&cmd.param,power,sizeof(*power));
1468 if (ipw_send_cmd(priv, &cmd)) {
1469 IPW_ERROR("failed to send TX_POWER command\n");
1470 return -1;
1471 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001472
James Ketrenos43f66a62005-03-25 12:31:53 -06001473 return 0;
1474}
1475
1476static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
1477{
1478 struct ipw_rts_threshold rts_threshold = {
1479 .rts_threshold = rts,
1480 };
1481 struct host_cmd cmd = {
1482 .cmd = IPW_CMD_RTS_THRESHOLD,
1483 .len = sizeof(rts_threshold)
1484 };
1485
1486 if (!priv) {
1487 IPW_ERROR("Invalid args\n");
1488 return -1;
1489 }
1490
1491 memcpy(&cmd.param, &rts_threshold, sizeof(rts_threshold));
1492 if (ipw_send_cmd(priv, &cmd)) {
1493 IPW_ERROR("failed to send RTS_THRESHOLD command\n");
1494 return -1;
1495 }
1496
1497 return 0;
1498}
1499
1500static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
1501{
1502 struct ipw_frag_threshold frag_threshold = {
1503 .frag_threshold = frag,
1504 };
1505 struct host_cmd cmd = {
1506 .cmd = IPW_CMD_FRAG_THRESHOLD,
1507 .len = sizeof(frag_threshold)
1508 };
1509
1510 if (!priv) {
1511 IPW_ERROR("Invalid args\n");
1512 return -1;
1513 }
1514
1515 memcpy(&cmd.param, &frag_threshold, sizeof(frag_threshold));
1516 if (ipw_send_cmd(priv, &cmd)) {
1517 IPW_ERROR("failed to send FRAG_THRESHOLD command\n");
1518 return -1;
1519 }
1520
1521 return 0;
1522}
1523
1524static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
1525{
1526 struct host_cmd cmd = {
1527 .cmd = IPW_CMD_POWER_MODE,
1528 .len = sizeof(u32)
1529 };
1530 u32 *param = (u32*)(&cmd.param);
1531
1532 if (!priv) {
1533 IPW_ERROR("Invalid args\n");
1534 return -1;
1535 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001536
James Ketrenos43f66a62005-03-25 12:31:53 -06001537 /* If on battery, set to 3, if AC set to CAM, else user
1538 * level */
1539 switch (mode) {
1540 case IPW_POWER_BATTERY:
1541 *param = IPW_POWER_INDEX_3;
1542 break;
1543 case IPW_POWER_AC:
1544 *param = IPW_POWER_MODE_CAM;
1545 break;
1546 default:
1547 *param = mode;
1548 break;
1549 }
1550
1551 if (ipw_send_cmd(priv, &cmd)) {
1552 IPW_ERROR("failed to send POWER_MODE command\n");
1553 return -1;
1554 }
1555
1556 return 0;
1557}
1558
1559/*
1560 * The IPW device contains a Microwire compatible EEPROM that stores
1561 * various data like the MAC address. Usually the firmware has exclusive
1562 * access to the eeprom, but during device initialization (before the
1563 * device driver has sent the HostComplete command to the firmware) the
1564 * device driver has read access to the EEPROM by way of indirect addressing
1565 * through a couple of memory mapped registers.
1566 *
1567 * The following is a simplified implementation for pulling data out of the
1568 * the eeprom, along with some helper functions to find information in
1569 * the per device private data's copy of the eeprom.
1570 *
1571 * NOTE: To better understand how these functions work (i.e what is a chip
1572 * select and why do have to keep driving the eeprom clock?), read
1573 * just about any data sheet for a Microwire compatible EEPROM.
1574 */
1575
1576/* write a 32 bit value into the indirect accessor register */
1577static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
1578{
1579 ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
Jeff Garzikbf794512005-07-31 13:07:26 -04001580
James Ketrenos43f66a62005-03-25 12:31:53 -06001581 /* the eeprom requires some time to complete the operation */
1582 udelay(p->eeprom_delay);
1583
1584 return;
1585}
1586
1587/* perform a chip select operation */
1588static inline void eeprom_cs(struct ipw_priv* priv)
1589{
1590 eeprom_write_reg(priv,0);
1591 eeprom_write_reg(priv,EEPROM_BIT_CS);
1592 eeprom_write_reg(priv,EEPROM_BIT_CS|EEPROM_BIT_SK);
1593 eeprom_write_reg(priv,EEPROM_BIT_CS);
1594}
1595
1596/* perform a chip select operation */
1597static inline void eeprom_disable_cs(struct ipw_priv* priv)
1598{
1599 eeprom_write_reg(priv,EEPROM_BIT_CS);
1600 eeprom_write_reg(priv,0);
1601 eeprom_write_reg(priv,EEPROM_BIT_SK);
1602}
1603
1604/* push a single bit down to the eeprom */
1605static inline void eeprom_write_bit(struct ipw_priv *p,u8 bit)
1606{
1607 int d = ( bit ? EEPROM_BIT_DI : 0);
1608 eeprom_write_reg(p,EEPROM_BIT_CS|d);
1609 eeprom_write_reg(p,EEPROM_BIT_CS|d|EEPROM_BIT_SK);
1610}
1611
1612/* push an opcode followed by an address down to the eeprom */
1613static void eeprom_op(struct ipw_priv* priv, u8 op, u8 addr)
1614{
1615 int i;
1616
1617 eeprom_cs(priv);
1618 eeprom_write_bit(priv,1);
1619 eeprom_write_bit(priv,op&2);
1620 eeprom_write_bit(priv,op&1);
1621 for ( i=7; i>=0; i-- ) {
1622 eeprom_write_bit(priv,addr&(1<<i));
1623 }
1624}
1625
1626/* pull 16 bits off the eeprom, one bit at a time */
1627static u16 eeprom_read_u16(struct ipw_priv* priv, u8 addr)
1628{
1629 int i;
1630 u16 r=0;
Jeff Garzikbf794512005-07-31 13:07:26 -04001631
James Ketrenos43f66a62005-03-25 12:31:53 -06001632 /* Send READ Opcode */
1633 eeprom_op(priv,EEPROM_CMD_READ,addr);
1634
1635 /* Send dummy bit */
1636 eeprom_write_reg(priv,EEPROM_BIT_CS);
1637
1638 /* Read the byte off the eeprom one bit at a time */
1639 for ( i=0; i<16; i++ ) {
1640 u32 data = 0;
1641 eeprom_write_reg(priv,EEPROM_BIT_CS|EEPROM_BIT_SK);
1642 eeprom_write_reg(priv,EEPROM_BIT_CS);
1643 data = ipw_read_reg32(priv,FW_MEM_REG_EEPROM_ACCESS);
1644 r = (r<<1) | ((data & EEPROM_BIT_DO)?1:0);
1645 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001646
James Ketrenos43f66a62005-03-25 12:31:53 -06001647 /* Send another dummy bit */
1648 eeprom_write_reg(priv,0);
1649 eeprom_disable_cs(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04001650
James Ketrenos43f66a62005-03-25 12:31:53 -06001651 return r;
1652}
1653
1654/* helper function for pulling the mac address out of the private */
1655/* data's copy of the eeprom data */
1656static void eeprom_parse_mac(struct ipw_priv* priv, u8* mac)
1657{
1658 u8* ee = (u8*)priv->eeprom;
1659 memcpy(mac, &ee[EEPROM_MAC_ADDRESS], 6);
1660}
1661
1662/*
1663 * Either the device driver (i.e. the host) or the firmware can
1664 * load eeprom data into the designated region in SRAM. If neither
1665 * happens then the FW will shutdown with a fatal error.
1666 *
1667 * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
1668 * bit needs region of shared SRAM needs to be non-zero.
1669 */
1670static void ipw_eeprom_init_sram(struct ipw_priv *priv)
1671{
1672 int i;
1673 u16 *eeprom = (u16 *)priv->eeprom;
Jeff Garzikbf794512005-07-31 13:07:26 -04001674
James Ketrenos43f66a62005-03-25 12:31:53 -06001675 IPW_DEBUG_TRACE(">>\n");
1676
1677 /* read entire contents of eeprom into private buffer */
1678 for ( i=0; i<128; i++ )
1679 eeprom[i] = eeprom_read_u16(priv,(u8)i);
1680
Jeff Garzikbf794512005-07-31 13:07:26 -04001681 /*
1682 If the data looks correct, then copy it to our private
James Ketrenos43f66a62005-03-25 12:31:53 -06001683 copy. Otherwise let the firmware know to perform the operation
1684 on it's own
1685 */
1686 if ((priv->eeprom + EEPROM_VERSION) != 0) {
1687 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
1688
1689 /* write the eeprom data to sram */
1690 for( i=0; i<CX2_EEPROM_IMAGE_SIZE; i++ )
Jeff Garzikbf794512005-07-31 13:07:26 -04001691 ipw_write8(priv, IPW_EEPROM_DATA + i,
James Ketrenos43f66a62005-03-25 12:31:53 -06001692 priv->eeprom[i]);
1693
1694 /* Do not load eeprom data on fatal error or suspend */
1695 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
1696 } else {
1697 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
1698
1699 /* Load eeprom data on fatal error or suspend */
1700 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
1701 }
1702
1703 IPW_DEBUG_TRACE("<<\n");
1704}
1705
1706
1707static inline void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
1708{
1709 count >>= 2;
1710 if (!count) return;
1711 _ipw_write32(priv, CX2_AUTOINC_ADDR, start);
Jeff Garzikbf794512005-07-31 13:07:26 -04001712 while (count--)
James Ketrenos43f66a62005-03-25 12:31:53 -06001713 _ipw_write32(priv, CX2_AUTOINC_DATA, 0);
1714}
1715
1716static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
1717{
1718 ipw_zero_memory(priv, CX2_SHARED_SRAM_DMA_CONTROL,
Jeff Garzikbf794512005-07-31 13:07:26 -04001719 CB_NUMBER_OF_ELEMENTS_SMALL *
James Ketrenos43f66a62005-03-25 12:31:53 -06001720 sizeof(struct command_block));
1721}
1722
1723static int ipw_fw_dma_enable(struct ipw_priv *priv)
1724{ /* start dma engine but no transfers yet*/
1725
1726 IPW_DEBUG_FW(">> : \n");
Jeff Garzikbf794512005-07-31 13:07:26 -04001727
James Ketrenos43f66a62005-03-25 12:31:53 -06001728 /* Start the dma */
1729 ipw_fw_dma_reset_command_blocks(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04001730
James Ketrenos43f66a62005-03-25 12:31:53 -06001731 /* Write CB base address */
1732 ipw_write_reg32(priv, CX2_DMA_I_CB_BASE, CX2_SHARED_SRAM_DMA_CONTROL);
1733
1734 IPW_DEBUG_FW("<< : \n");
1735 return 0;
1736}
1737
1738static void ipw_fw_dma_abort(struct ipw_priv *priv)
1739{
1740 u32 control = 0;
1741
1742 IPW_DEBUG_FW(">> :\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04001743
1744 //set the Stop and Abort bit
James Ketrenos43f66a62005-03-25 12:31:53 -06001745 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
1746 ipw_write_reg32(priv, CX2_DMA_I_DMA_CONTROL, control);
1747 priv->sram_desc.last_cb_index = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04001748
James Ketrenos43f66a62005-03-25 12:31:53 -06001749 IPW_DEBUG_FW("<< \n");
1750}
1751
1752static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index, struct command_block *cb)
1753{
Jeff Garzikbf794512005-07-31 13:07:26 -04001754 u32 address = CX2_SHARED_SRAM_DMA_CONTROL + (sizeof(struct command_block) * index);
James Ketrenos43f66a62005-03-25 12:31:53 -06001755 IPW_DEBUG_FW(">> :\n");
1756
Jiri Bencaaa4d302005-06-07 14:58:41 +02001757 ipw_write_indirect(priv, address, (u8*)cb, (int)sizeof(struct command_block));
James Ketrenos43f66a62005-03-25 12:31:53 -06001758
1759 IPW_DEBUG_FW("<< :\n");
1760 return 0;
1761
1762}
1763
1764static int ipw_fw_dma_kick(struct ipw_priv *priv)
1765{
1766 u32 control = 0;
1767 u32 index=0;
1768
1769 IPW_DEBUG_FW(">> :\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04001770
James Ketrenos43f66a62005-03-25 12:31:53 -06001771 for (index = 0; index < priv->sram_desc.last_cb_index; index++)
1772 ipw_fw_dma_write_command_block(priv, index, &priv->sram_desc.cb_list[index]);
1773
1774 /* Enable the DMA in the CSR register */
1775 ipw_clear_bit(priv, CX2_RESET_REG,CX2_RESET_REG_MASTER_DISABLED | CX2_RESET_REG_STOP_MASTER);
Jeff Garzikbf794512005-07-31 13:07:26 -04001776
James Ketrenos43f66a62005-03-25 12:31:53 -06001777 /* Set the Start bit. */
1778 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
1779 ipw_write_reg32(priv, CX2_DMA_I_DMA_CONTROL, control);
1780
1781 IPW_DEBUG_FW("<< :\n");
1782 return 0;
1783}
1784
1785static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
1786{
1787 u32 address;
1788 u32 register_value=0;
1789 u32 cb_fields_address=0;
1790
1791 IPW_DEBUG_FW(">> :\n");
1792 address = ipw_read_reg32(priv,CX2_DMA_I_CURRENT_CB);
1793 IPW_DEBUG_FW_INFO("Current CB is 0x%x \n",address);
1794
1795 /* Read the DMA Controlor register */
1796 register_value = ipw_read_reg32(priv, CX2_DMA_I_DMA_CONTROL);
1797 IPW_DEBUG_FW_INFO("CX2_DMA_I_DMA_CONTROL is 0x%x \n",register_value);
1798
1799 /* Print the CB values*/
1800 cb_fields_address = address;
1801 register_value = ipw_read_reg32(priv, cb_fields_address);
1802 IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n",register_value);
1803
1804 cb_fields_address += sizeof(u32);
1805 register_value = ipw_read_reg32(priv, cb_fields_address);
1806 IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n",register_value);
1807
1808 cb_fields_address += sizeof(u32);
1809 register_value = ipw_read_reg32(priv, cb_fields_address);
1810 IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n",
1811 register_value);
1812
1813 cb_fields_address += sizeof(u32);
1814 register_value = ipw_read_reg32(priv, cb_fields_address);
1815 IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n",register_value);
1816
1817 IPW_DEBUG_FW(">> :\n");
1818}
1819
1820static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
1821{
1822 u32 current_cb_address = 0;
1823 u32 current_cb_index = 0;
1824
1825 IPW_DEBUG_FW("<< :\n");
1826 current_cb_address= ipw_read_reg32(priv, CX2_DMA_I_CURRENT_CB);
Jeff Garzikbf794512005-07-31 13:07:26 -04001827
James Ketrenos43f66a62005-03-25 12:31:53 -06001828 current_cb_index = (current_cb_address - CX2_SHARED_SRAM_DMA_CONTROL )/
1829 sizeof (struct command_block);
Jeff Garzikbf794512005-07-31 13:07:26 -04001830
James Ketrenos43f66a62005-03-25 12:31:53 -06001831 IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n",
1832 current_cb_index, current_cb_address );
1833
1834 IPW_DEBUG_FW(">> :\n");
1835 return current_cb_index;
1836
1837}
1838
1839static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
1840 u32 src_address,
1841 u32 dest_address,
1842 u32 length,
1843 int interrupt_enabled,
1844 int is_last)
1845{
1846
Jeff Garzikbf794512005-07-31 13:07:26 -04001847 u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
1848 CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
James Ketrenos43f66a62005-03-25 12:31:53 -06001849 CB_DEST_SIZE_LONG;
1850 struct command_block *cb;
1851 u32 last_cb_element=0;
1852
1853 IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
1854 src_address, dest_address, length);
1855
1856 if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
1857 return -1;
1858
1859 last_cb_element = priv->sram_desc.last_cb_index;
1860 cb = &priv->sram_desc.cb_list[last_cb_element];
1861 priv->sram_desc.last_cb_index++;
1862
1863 /* Calculate the new CB control word */
1864 if (interrupt_enabled )
1865 control |= CB_INT_ENABLED;
1866
1867 if (is_last)
1868 control |= CB_LAST_VALID;
Jeff Garzikbf794512005-07-31 13:07:26 -04001869
James Ketrenos43f66a62005-03-25 12:31:53 -06001870 control |= length;
1871
1872 /* Calculate the CB Element's checksum value */
1873 cb->status = control ^src_address ^dest_address;
1874
1875 /* Copy the Source and Destination addresses */
1876 cb->dest_addr = dest_address;
1877 cb->source_addr = src_address;
1878
1879 /* Copy the Control Word last */
1880 cb->control = control;
1881
1882 return 0;
1883}
1884
1885static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
1886 u32 src_phys,
1887 u32 dest_address,
1888 u32 length)
1889{
1890 u32 bytes_left = length;
1891 u32 src_offset=0;
1892 u32 dest_offset=0;
1893 int status = 0;
1894 IPW_DEBUG_FW(">> \n");
1895 IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
1896 src_phys, dest_address, length);
1897 while (bytes_left > CB_MAX_LENGTH) {
1898 status = ipw_fw_dma_add_command_block( priv,
1899 src_phys + src_offset,
1900 dest_address + dest_offset,
1901 CB_MAX_LENGTH, 0, 0);
1902 if (status) {
1903 IPW_DEBUG_FW_INFO(": Failed\n");
1904 return -1;
Jeff Garzikbf794512005-07-31 13:07:26 -04001905 } else
James Ketrenos43f66a62005-03-25 12:31:53 -06001906 IPW_DEBUG_FW_INFO(": Added new cb\n");
1907
1908 src_offset += CB_MAX_LENGTH;
1909 dest_offset += CB_MAX_LENGTH;
1910 bytes_left -= CB_MAX_LENGTH;
1911 }
1912
1913 /* add the buffer tail */
1914 if (bytes_left > 0) {
1915 status = ipw_fw_dma_add_command_block(
1916 priv, src_phys + src_offset,
1917 dest_address + dest_offset,
1918 bytes_left, 0, 0);
1919 if (status) {
1920 IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
1921 return -1;
Jeff Garzikbf794512005-07-31 13:07:26 -04001922 } else
James Ketrenos43f66a62005-03-25 12:31:53 -06001923 IPW_DEBUG_FW_INFO(": Adding new cb - the buffer tail\n");
1924 }
Jeff Garzikbf794512005-07-31 13:07:26 -04001925
1926
James Ketrenos43f66a62005-03-25 12:31:53 -06001927 IPW_DEBUG_FW("<< \n");
1928 return 0;
1929}
1930
1931static int ipw_fw_dma_wait(struct ipw_priv *priv)
1932{
1933 u32 current_index = 0;
1934 u32 watchdog = 0;
1935
1936 IPW_DEBUG_FW(">> : \n");
1937
1938 current_index = ipw_fw_dma_command_block_index(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04001939 IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%8X\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06001940 (int) priv->sram_desc.last_cb_index);
1941
1942 while (current_index < priv->sram_desc.last_cb_index) {
1943 udelay(50);
1944 current_index = ipw_fw_dma_command_block_index(priv);
1945
1946 watchdog++;
1947
1948 if (watchdog > 400) {
1949 IPW_DEBUG_FW_INFO("Timeout\n");
1950 ipw_fw_dma_dump_command_block(priv);
1951 ipw_fw_dma_abort(priv);
1952 return -1;
1953 }
1954 }
1955
1956 ipw_fw_dma_abort(priv);
1957
1958 /*Disable the DMA in the CSR register*/
Jeff Garzikbf794512005-07-31 13:07:26 -04001959 ipw_set_bit(priv, CX2_RESET_REG,
James Ketrenos43f66a62005-03-25 12:31:53 -06001960 CX2_RESET_REG_MASTER_DISABLED | CX2_RESET_REG_STOP_MASTER);
1961
1962 IPW_DEBUG_FW("<< dmaWaitSync \n");
1963 return 0;
1964}
1965
Jeff Garzikbf794512005-07-31 13:07:26 -04001966static void ipw_remove_current_network(struct ipw_priv *priv)
James Ketrenos43f66a62005-03-25 12:31:53 -06001967{
1968 struct list_head *element, *safe;
Jeff Garzikbf794512005-07-31 13:07:26 -04001969 struct ieee80211_network *network = NULL;
James Ketrenos43f66a62005-03-25 12:31:53 -06001970 list_for_each_safe(element, safe, &priv->ieee->network_list) {
1971 network = list_entry(element, struct ieee80211_network, list);
1972 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
1973 list_del(element);
Jeff Garzikbf794512005-07-31 13:07:26 -04001974 list_add_tail(&network->list,
James Ketrenos43f66a62005-03-25 12:31:53 -06001975 &priv->ieee->network_free_list);
1976 }
1977 }
1978}
1979
1980/**
Jeff Garzikbf794512005-07-31 13:07:26 -04001981 * Check that card is still alive.
James Ketrenos43f66a62005-03-25 12:31:53 -06001982 * Reads debug register from domain0.
1983 * If card is present, pre-defined value should
1984 * be found there.
Jeff Garzikbf794512005-07-31 13:07:26 -04001985 *
James Ketrenos43f66a62005-03-25 12:31:53 -06001986 * @param priv
1987 * @return 1 if card is present, 0 otherwise
1988 */
1989static inline int ipw_alive(struct ipw_priv *priv)
1990{
1991 return ipw_read32(priv, 0x90) == 0xd55555d5;
1992}
1993
1994static inline int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
1995 int timeout)
1996{
1997 int i = 0;
1998
1999 do {
Jeff Garzikbf794512005-07-31 13:07:26 -04002000 if ((ipw_read32(priv, addr) & mask) == mask)
James Ketrenos43f66a62005-03-25 12:31:53 -06002001 return i;
2002 mdelay(10);
2003 i += 10;
2004 } while (i < timeout);
Jeff Garzikbf794512005-07-31 13:07:26 -04002005
James Ketrenos43f66a62005-03-25 12:31:53 -06002006 return -ETIME;
2007}
2008
Jeff Garzikbf794512005-07-31 13:07:26 -04002009/* These functions load the firmware and micro code for the operation of
James Ketrenos43f66a62005-03-25 12:31:53 -06002010 * the ipw hardware. It assumes the buffer has all the bits for the
2011 * image and the caller is handling the memory allocation and clean up.
2012 */
2013
2014
2015static int ipw_stop_master(struct ipw_priv * priv)
2016{
2017 int rc;
Jeff Garzikbf794512005-07-31 13:07:26 -04002018
James Ketrenos43f66a62005-03-25 12:31:53 -06002019 IPW_DEBUG_TRACE(">> \n");
2020 /* stop master. typical delay - 0 */
2021 ipw_set_bit(priv, CX2_RESET_REG, CX2_RESET_REG_STOP_MASTER);
2022
2023 rc = ipw_poll_bit(priv, CX2_RESET_REG,
2024 CX2_RESET_REG_MASTER_DISABLED, 100);
2025 if (rc < 0) {
2026 IPW_ERROR("stop master failed in 10ms\n");
2027 return -1;
2028 }
2029
2030 IPW_DEBUG_INFO("stop master %dms\n", rc);
2031
2032 return rc;
2033}
2034
2035static void ipw_arc_release(struct ipw_priv *priv)
2036{
2037 IPW_DEBUG_TRACE(">> \n");
2038 mdelay(5);
2039
2040 ipw_clear_bit(priv, CX2_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
2041
2042 /* no one knows timing, for safety add some delay */
2043 mdelay(5);
2044}
2045
2046struct fw_header {
2047 u32 version;
2048 u32 mode;
2049};
2050
2051struct fw_chunk {
2052 u32 address;
2053 u32 length;
2054};
2055
2056#define IPW_FW_MAJOR_VERSION 2
2057#define IPW_FW_MINOR_VERSION 2
2058
2059#define IPW_FW_MINOR(x) ((x & 0xff) >> 8)
2060#define IPW_FW_MAJOR(x) (x & 0xff)
2061
2062#define IPW_FW_VERSION ((IPW_FW_MINOR_VERSION << 8) | \
2063 IPW_FW_MAJOR_VERSION)
2064
2065#define IPW_FW_PREFIX "ipw-" __stringify(IPW_FW_MAJOR_VERSION) \
2066"." __stringify(IPW_FW_MINOR_VERSION) "-"
2067
2068#if IPW_FW_MAJOR_VERSION >= 2 && IPW_FW_MINOR_VERSION > 0
2069#define IPW_FW_NAME(x) IPW_FW_PREFIX "" x ".fw"
2070#else
2071#define IPW_FW_NAME(x) "ipw2200_" x ".fw"
2072#endif
2073
2074static int ipw_load_ucode(struct ipw_priv *priv, u8 * data,
2075 size_t len)
2076{
2077 int rc = 0, i, addr;
2078 u8 cr = 0;
2079 u16 *image;
2080
2081 image = (u16 *)data;
Jeff Garzikbf794512005-07-31 13:07:26 -04002082
James Ketrenos43f66a62005-03-25 12:31:53 -06002083 IPW_DEBUG_TRACE(">> \n");
2084
2085 rc = ipw_stop_master(priv);
2086
2087 if (rc < 0)
2088 return rc;
Jeff Garzikbf794512005-07-31 13:07:26 -04002089
James Ketrenos43f66a62005-03-25 12:31:53 -06002090// spin_lock_irqsave(&priv->lock, flags);
Jeff Garzikbf794512005-07-31 13:07:26 -04002091
James Ketrenos43f66a62005-03-25 12:31:53 -06002092 for (addr = CX2_SHARED_LOWER_BOUND;
2093 addr < CX2_REGISTER_DOMAIN1_END; addr += 4) {
2094 ipw_write32(priv, addr, 0);
2095 }
2096
2097 /* no ucode (yet) */
2098 memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
2099 /* destroy DMA queues */
2100 /* reset sequence */
2101
2102 ipw_write_reg32(priv, CX2_MEM_HALT_AND_RESET ,CX2_BIT_HALT_RESET_ON);
2103 ipw_arc_release(priv);
2104 ipw_write_reg32(priv, CX2_MEM_HALT_AND_RESET, CX2_BIT_HALT_RESET_OFF);
2105 mdelay(1);
2106
2107 /* reset PHY */
2108 ipw_write_reg32(priv, CX2_INTERNAL_CMD_EVENT, CX2_BASEBAND_POWER_DOWN);
2109 mdelay(1);
Jeff Garzikbf794512005-07-31 13:07:26 -04002110
James Ketrenos43f66a62005-03-25 12:31:53 -06002111 ipw_write_reg32(priv, CX2_INTERNAL_CMD_EVENT, 0);
2112 mdelay(1);
Jeff Garzikbf794512005-07-31 13:07:26 -04002113
James Ketrenos43f66a62005-03-25 12:31:53 -06002114 /* enable ucode store */
2115 ipw_write_reg8(priv, DINO_CONTROL_REG, 0x0);
2116 ipw_write_reg8(priv, DINO_CONTROL_REG, DINO_ENABLE_CS);
2117 mdelay(1);
2118
2119 /* write ucode */
2120 /**
2121 * @bug
2122 * Do NOT set indirect address register once and then
2123 * store data to indirect data register in the loop.
2124 * It seems very reasonable, but in this case DINO do not
2125 * accept ucode. It is essential to set address each time.
2126 */
2127 /* load new ipw uCode */
2128 for (i = 0; i < len / 2; i++)
2129 ipw_write_reg16(priv, CX2_BASEBAND_CONTROL_STORE, image[i]);
2130
Jeff Garzikbf794512005-07-31 13:07:26 -04002131
James Ketrenos43f66a62005-03-25 12:31:53 -06002132 /* enable DINO */
2133 ipw_write_reg8(priv, CX2_BASEBAND_CONTROL_STATUS, 0);
2134 ipw_write_reg8(priv, CX2_BASEBAND_CONTROL_STATUS,
2135 DINO_ENABLE_SYSTEM );
2136
2137 /* this is where the igx / win driver deveates from the VAP driver.*/
2138
2139 /* wait for alive response */
2140 for (i = 0; i < 100; i++) {
2141 /* poll for incoming data */
2142 cr = ipw_read_reg8(priv, CX2_BASEBAND_CONTROL_STATUS);
2143 if (cr & DINO_RXFIFO_DATA)
2144 break;
2145 mdelay(1);
2146 }
2147
2148 if (cr & DINO_RXFIFO_DATA) {
2149 /* alive_command_responce size is NOT multiple of 4 */
2150 u32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
Jeff Garzikbf794512005-07-31 13:07:26 -04002151
2152 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
James Ketrenos43f66a62005-03-25 12:31:53 -06002153 response_buffer[i] =
Jeff Garzikbf794512005-07-31 13:07:26 -04002154 ipw_read_reg32(priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06002155 CX2_BASEBAND_RX_FIFO_READ);
2156 memcpy(&priv->dino_alive, response_buffer,
2157 sizeof(priv->dino_alive));
2158 if (priv->dino_alive.alive_command == 1
2159 && priv->dino_alive.ucode_valid == 1) {
2160 rc = 0;
2161 IPW_DEBUG_INFO(
2162 "Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
2163 "of %02d/%02d/%02d %02d:%02d\n",
2164 priv->dino_alive.software_revision,
2165 priv->dino_alive.software_revision,
2166 priv->dino_alive.device_identifier,
2167 priv->dino_alive.device_identifier,
2168 priv->dino_alive.time_stamp[0],
2169 priv->dino_alive.time_stamp[1],
2170 priv->dino_alive.time_stamp[2],
2171 priv->dino_alive.time_stamp[3],
2172 priv->dino_alive.time_stamp[4]);
2173 } else {
2174 IPW_DEBUG_INFO("Microcode is not alive\n");
2175 rc = -EINVAL;
2176 }
2177 } else {
2178 IPW_DEBUG_INFO("No alive response from DINO\n");
2179 rc = -ETIME;
2180 }
2181
2182 /* disable DINO, otherwise for some reason
2183 firmware have problem getting alive resp. */
2184 ipw_write_reg8(priv, CX2_BASEBAND_CONTROL_STATUS, 0);
2185
2186// spin_unlock_irqrestore(&priv->lock, flags);
2187
2188 return rc;
2189}
2190
2191static int ipw_load_firmware(struct ipw_priv *priv, u8 * data,
2192 size_t len)
2193{
2194 int rc = -1;
2195 int offset = 0;
2196 struct fw_chunk *chunk;
2197 dma_addr_t shared_phys;
2198 u8 *shared_virt;
2199
2200 IPW_DEBUG_TRACE("<< : \n");
2201 shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
2202
2203 if (!shared_virt)
2204 return -ENOMEM;
2205
2206 memmove(shared_virt, data, len);
2207
2208 /* Start the Dma */
2209 rc = ipw_fw_dma_enable(priv);
2210
2211 if (priv->sram_desc.last_cb_index > 0) {
2212 /* the DMA is already ready this would be a bug. */
2213 BUG();
2214 goto out;
2215 }
2216
2217 do {
2218 chunk = (struct fw_chunk *)(data + offset);
2219 offset += sizeof(struct fw_chunk);
2220 /* build DMA packet and queue up for sending */
Jeff Garzikbf794512005-07-31 13:07:26 -04002221 /* dma to chunk->address, the chunk->length bytes from data +
James Ketrenos43f66a62005-03-25 12:31:53 -06002222 * offeset*/
2223 /* Dma loading */
2224 rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
2225 chunk->address, chunk->length);
2226 if (rc) {
2227 IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
2228 goto out;
2229 }
Jeff Garzikbf794512005-07-31 13:07:26 -04002230
James Ketrenos43f66a62005-03-25 12:31:53 -06002231 offset += chunk->length;
2232 } while (offset < len);
2233
2234 /* Run the DMA and wait for the answer*/
2235 rc = ipw_fw_dma_kick(priv);
2236 if (rc) {
2237 IPW_ERROR("dmaKick Failed\n");
2238 goto out;
2239 }
2240
2241 rc = ipw_fw_dma_wait(priv);
2242 if (rc) {
2243 IPW_ERROR("dmaWaitSync Failed\n");
2244 goto out;
2245 }
2246 out:
2247 pci_free_consistent( priv->pci_dev, len, shared_virt, shared_phys);
2248 return rc;
2249}
2250
2251/* stop nic */
2252static int ipw_stop_nic(struct ipw_priv *priv)
2253{
2254 int rc = 0;
2255
2256 /* stop*/
2257 ipw_write32(priv, CX2_RESET_REG, CX2_RESET_REG_STOP_MASTER);
Jeff Garzikbf794512005-07-31 13:07:26 -04002258
2259 rc = ipw_poll_bit(priv, CX2_RESET_REG,
2260 CX2_RESET_REG_MASTER_DISABLED, 500);
James Ketrenos43f66a62005-03-25 12:31:53 -06002261 if (rc < 0) {
2262 IPW_ERROR("wait for reg master disabled failed\n");
2263 return rc;
Jeff Garzikbf794512005-07-31 13:07:26 -04002264 }
James Ketrenos43f66a62005-03-25 12:31:53 -06002265
2266 ipw_set_bit(priv, CX2_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
Jeff Garzikbf794512005-07-31 13:07:26 -04002267
James Ketrenos43f66a62005-03-25 12:31:53 -06002268 return rc;
2269}
2270
2271static void ipw_start_nic(struct ipw_priv *priv)
2272{
2273 IPW_DEBUG_TRACE(">>\n");
2274
2275 /* prvHwStartNic release ARC*/
2276 ipw_clear_bit(priv, CX2_RESET_REG,
Jeff Garzikbf794512005-07-31 13:07:26 -04002277 CX2_RESET_REG_MASTER_DISABLED |
2278 CX2_RESET_REG_STOP_MASTER |
James Ketrenos43f66a62005-03-25 12:31:53 -06002279 CBD_RESET_REG_PRINCETON_RESET);
Jeff Garzikbf794512005-07-31 13:07:26 -04002280
James Ketrenos43f66a62005-03-25 12:31:53 -06002281 /* enable power management */
2282 ipw_set_bit(priv, CX2_GP_CNTRL_RW, CX2_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
2283
2284 IPW_DEBUG_TRACE("<<\n");
2285}
Jeff Garzikbf794512005-07-31 13:07:26 -04002286
James Ketrenos43f66a62005-03-25 12:31:53 -06002287static int ipw_init_nic(struct ipw_priv *priv)
2288{
2289 int rc;
2290
2291 IPW_DEBUG_TRACE(">>\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04002292 /* reset */
James Ketrenos43f66a62005-03-25 12:31:53 -06002293 /*prvHwInitNic */
2294 /* set "initialization complete" bit to move adapter to D0 state */
2295 ipw_set_bit(priv, CX2_GP_CNTRL_RW, CX2_GP_CNTRL_BIT_INIT_DONE);
2296
2297 /* low-level PLL activation */
2298 ipw_write32(priv, CX2_READ_INT_REGISTER, CX2_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
2299
2300 /* wait for clock stabilization */
Jeff Garzikbf794512005-07-31 13:07:26 -04002301 rc = ipw_poll_bit(priv, CX2_GP_CNTRL_RW,
2302 CX2_GP_CNTRL_BIT_CLOCK_READY, 250);
James Ketrenos43f66a62005-03-25 12:31:53 -06002303 if (rc < 0 )
2304 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
2305
2306 /* assert SW reset */
2307 ipw_set_bit(priv, CX2_RESET_REG, CX2_RESET_REG_SW_RESET);
2308
2309 udelay(10);
2310
2311 /* set "initialization complete" bit to move adapter to D0 state */
2312 ipw_set_bit(priv, CX2_GP_CNTRL_RW, CX2_GP_CNTRL_BIT_INIT_DONE);
2313
2314 IPW_DEBUG_TRACE(">>\n");
2315 return 0;
2316}
2317
2318
Jeff Garzikbf794512005-07-31 13:07:26 -04002319/* Call this function from process context, it will sleep in request_firmware.
James Ketrenos43f66a62005-03-25 12:31:53 -06002320 * Probe is an ok place to call this from.
2321 */
2322static int ipw_reset_nic(struct ipw_priv *priv)
2323{
2324 int rc = 0;
2325
2326 IPW_DEBUG_TRACE(">>\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04002327
James Ketrenos43f66a62005-03-25 12:31:53 -06002328 rc = ipw_init_nic(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04002329
James Ketrenos43f66a62005-03-25 12:31:53 -06002330 /* Clear the 'host command active' bit... */
2331 priv->status &= ~STATUS_HCMD_ACTIVE;
2332 wake_up_interruptible(&priv->wait_command_queue);
2333
2334 IPW_DEBUG_TRACE("<<\n");
2335 return rc;
Jeff Garzikbf794512005-07-31 13:07:26 -04002336}
James Ketrenos43f66a62005-03-25 12:31:53 -06002337
Jeff Garzikbf794512005-07-31 13:07:26 -04002338static int ipw_get_fw(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06002339 const struct firmware **fw, const char *name)
2340{
2341 struct fw_header *header;
2342 int rc;
2343
2344 /* ask firmware_class module to get the boot firmware off disk */
2345 rc = request_firmware(fw, name, &priv->pci_dev->dev);
2346 if (rc < 0) {
2347 IPW_ERROR("%s load failed: Reason %d\n", name, rc);
2348 return rc;
Jeff Garzikbf794512005-07-31 13:07:26 -04002349 }
James Ketrenos43f66a62005-03-25 12:31:53 -06002350
2351 header = (struct fw_header *)(*fw)->data;
2352 if (IPW_FW_MAJOR(header->version) != IPW_FW_MAJOR_VERSION) {
2353 IPW_ERROR("'%s' firmware version not compatible (%d != %d)\n",
2354 name,
2355 IPW_FW_MAJOR(header->version), IPW_FW_MAJOR_VERSION);
2356 return -EINVAL;
2357 }
2358
Jiri Bencaaa4d302005-06-07 14:58:41 +02002359 IPW_DEBUG_INFO("Loading firmware '%s' file v%d.%d (%zd bytes)\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06002360 name,
2361 IPW_FW_MAJOR(header->version),
2362 IPW_FW_MINOR(header->version),
2363 (*fw)->size - sizeof(struct fw_header));
2364 return 0;
2365}
2366
2367#define CX2_RX_BUF_SIZE (3000)
2368
2369static inline void ipw_rx_queue_reset(struct ipw_priv *priv,
2370 struct ipw_rx_queue *rxq)
2371{
2372 unsigned long flags;
2373 int i;
2374
2375 spin_lock_irqsave(&rxq->lock, flags);
2376
2377 INIT_LIST_HEAD(&rxq->rx_free);
2378 INIT_LIST_HEAD(&rxq->rx_used);
2379
2380 /* Fill the rx_used queue with _all_ of the Rx buffers */
2381 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
2382 /* In the reset function, these buffers may have been allocated
2383 * to an SKB, so we need to unmap and free potential storage */
2384 if (rxq->pool[i].skb != NULL) {
2385 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
2386 CX2_RX_BUF_SIZE,
2387 PCI_DMA_FROMDEVICE);
2388 dev_kfree_skb(rxq->pool[i].skb);
2389 }
2390 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
2391 }
Jeff Garzikbf794512005-07-31 13:07:26 -04002392
James Ketrenos43f66a62005-03-25 12:31:53 -06002393 /* Set us so that we have processed and used all buffers, but have
2394 * not restocked the Rx queue with fresh buffers */
2395 rxq->read = rxq->write = 0;
2396 rxq->processed = RX_QUEUE_SIZE - 1;
2397 rxq->free_count = 0;
2398 spin_unlock_irqrestore(&rxq->lock, flags);
2399}
2400
2401#ifdef CONFIG_PM
2402static int fw_loaded = 0;
2403static const struct firmware *bootfw = NULL;
2404static const struct firmware *firmware = NULL;
2405static const struct firmware *ucode = NULL;
2406#endif
2407
2408static int ipw_load(struct ipw_priv *priv)
2409{
2410#ifndef CONFIG_PM
2411 const struct firmware *bootfw = NULL;
2412 const struct firmware *firmware = NULL;
2413 const struct firmware *ucode = NULL;
2414#endif
2415 int rc = 0, retries = 3;
2416
2417#ifdef CONFIG_PM
2418 if (!fw_loaded) {
2419#endif
2420 rc = ipw_get_fw(priv, &bootfw, IPW_FW_NAME("boot"));
Jeff Garzikbf794512005-07-31 13:07:26 -04002421 if (rc)
James Ketrenos43f66a62005-03-25 12:31:53 -06002422 goto error;
Jeff Garzikbf794512005-07-31 13:07:26 -04002423
James Ketrenos43f66a62005-03-25 12:31:53 -06002424 switch (priv->ieee->iw_mode) {
2425 case IW_MODE_ADHOC:
Jeff Garzikbf794512005-07-31 13:07:26 -04002426 rc = ipw_get_fw(priv, &ucode,
James Ketrenos43f66a62005-03-25 12:31:53 -06002427 IPW_FW_NAME("ibss_ucode"));
Jeff Garzikbf794512005-07-31 13:07:26 -04002428 if (rc)
James Ketrenos43f66a62005-03-25 12:31:53 -06002429 goto error;
Jeff Garzikbf794512005-07-31 13:07:26 -04002430
James Ketrenos43f66a62005-03-25 12:31:53 -06002431 rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("ibss"));
2432 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04002433
James Ketrenos43f66a62005-03-25 12:31:53 -06002434#ifdef CONFIG_IPW_PROMISC
2435 case IW_MODE_MONITOR:
Jeff Garzikbf794512005-07-31 13:07:26 -04002436 rc = ipw_get_fw(priv, &ucode,
James Ketrenos43f66a62005-03-25 12:31:53 -06002437 IPW_FW_NAME("ibss_ucode"));
Jeff Garzikbf794512005-07-31 13:07:26 -04002438 if (rc)
James Ketrenos43f66a62005-03-25 12:31:53 -06002439 goto error;
Jeff Garzikbf794512005-07-31 13:07:26 -04002440
James Ketrenos43f66a62005-03-25 12:31:53 -06002441 rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("sniffer"));
2442 break;
2443#endif
2444 case IW_MODE_INFRA:
Jeff Garzikbf794512005-07-31 13:07:26 -04002445 rc = ipw_get_fw(priv, &ucode,
James Ketrenos43f66a62005-03-25 12:31:53 -06002446 IPW_FW_NAME("bss_ucode"));
Jeff Garzikbf794512005-07-31 13:07:26 -04002447 if (rc)
James Ketrenos43f66a62005-03-25 12:31:53 -06002448 goto error;
Jeff Garzikbf794512005-07-31 13:07:26 -04002449
James Ketrenos43f66a62005-03-25 12:31:53 -06002450 rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("bss"));
2451 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04002452
James Ketrenos43f66a62005-03-25 12:31:53 -06002453 default:
2454 rc = -EINVAL;
2455 }
2456
Jeff Garzikbf794512005-07-31 13:07:26 -04002457 if (rc)
James Ketrenos43f66a62005-03-25 12:31:53 -06002458 goto error;
2459
2460#ifdef CONFIG_PM
2461 fw_loaded = 1;
2462 }
2463#endif
2464
2465 if (!priv->rxq)
2466 priv->rxq = ipw_rx_queue_alloc(priv);
2467 else
2468 ipw_rx_queue_reset(priv, priv->rxq);
2469 if (!priv->rxq) {
2470 IPW_ERROR("Unable to initialize Rx queue\n");
2471 goto error;
2472 }
2473
2474 retry:
2475 /* Ensure interrupts are disabled */
2476 ipw_write32(priv, CX2_INTA_MASK_R, ~CX2_INTA_MASK_ALL);
2477 priv->status &= ~STATUS_INT_ENABLED;
2478
2479 /* ack pending interrupts */
2480 ipw_write32(priv, CX2_INTA_RW, CX2_INTA_MASK_ALL);
Jeff Garzikbf794512005-07-31 13:07:26 -04002481
James Ketrenos43f66a62005-03-25 12:31:53 -06002482 ipw_stop_nic(priv);
2483
2484 rc = ipw_reset_nic(priv);
2485 if (rc) {
2486 IPW_ERROR("Unable to reset NIC\n");
2487 goto error;
2488 }
2489
Jeff Garzikbf794512005-07-31 13:07:26 -04002490 ipw_zero_memory(priv, CX2_NIC_SRAM_LOWER_BOUND,
James Ketrenos43f66a62005-03-25 12:31:53 -06002491 CX2_NIC_SRAM_UPPER_BOUND - CX2_NIC_SRAM_LOWER_BOUND);
2492
2493 /* DMA the initial boot firmware into the device */
Jeff Garzikbf794512005-07-31 13:07:26 -04002494 rc = ipw_load_firmware(priv, bootfw->data + sizeof(struct fw_header),
James Ketrenos43f66a62005-03-25 12:31:53 -06002495 bootfw->size - sizeof(struct fw_header));
2496 if (rc < 0) {
2497 IPW_ERROR("Unable to load boot firmware\n");
2498 goto error;
2499 }
2500
2501 /* kick start the device */
2502 ipw_start_nic(priv);
2503
2504 /* wait for the device to finish it's initial startup sequence */
Jeff Garzikbf794512005-07-31 13:07:26 -04002505 rc = ipw_poll_bit(priv, CX2_INTA_RW,
2506 CX2_INTA_BIT_FW_INITIALIZATION_DONE, 500);
James Ketrenos43f66a62005-03-25 12:31:53 -06002507 if (rc < 0) {
2508 IPW_ERROR("device failed to boot initial fw image\n");
2509 goto error;
2510 }
2511 IPW_DEBUG_INFO("initial device response after %dms\n", rc);
2512
Jeff Garzikbf794512005-07-31 13:07:26 -04002513 /* ack fw init done interrupt */
James Ketrenos43f66a62005-03-25 12:31:53 -06002514 ipw_write32(priv, CX2_INTA_RW, CX2_INTA_BIT_FW_INITIALIZATION_DONE);
2515
2516 /* DMA the ucode into the device */
Jeff Garzikbf794512005-07-31 13:07:26 -04002517 rc = ipw_load_ucode(priv, ucode->data + sizeof(struct fw_header),
James Ketrenos43f66a62005-03-25 12:31:53 -06002518 ucode->size - sizeof(struct fw_header));
2519 if (rc < 0) {
2520 IPW_ERROR("Unable to load ucode\n");
2521 goto error;
2522 }
Jeff Garzikbf794512005-07-31 13:07:26 -04002523
James Ketrenos43f66a62005-03-25 12:31:53 -06002524 /* stop nic */
2525 ipw_stop_nic(priv);
2526
2527 /* DMA bss firmware into the device */
Jeff Garzikbf794512005-07-31 13:07:26 -04002528 rc = ipw_load_firmware(priv, firmware->data +
2529 sizeof(struct fw_header),
James Ketrenos43f66a62005-03-25 12:31:53 -06002530 firmware->size - sizeof(struct fw_header));
2531 if (rc < 0 ) {
2532 IPW_ERROR("Unable to load firmware\n");
2533 goto error;
2534 }
2535
2536 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2537
2538 rc = ipw_queue_reset(priv);
2539 if (rc) {
2540 IPW_ERROR("Unable to initialize queues\n");
2541 goto error;
2542 }
2543
2544 /* Ensure interrupts are disabled */
2545 ipw_write32(priv, CX2_INTA_MASK_R, ~CX2_INTA_MASK_ALL);
Jeff Garzikbf794512005-07-31 13:07:26 -04002546
James Ketrenos43f66a62005-03-25 12:31:53 -06002547 /* kick start the device */
2548 ipw_start_nic(priv);
2549
2550 if (ipw_read32(priv, CX2_INTA_RW) & CX2_INTA_BIT_PARITY_ERROR) {
2551 if (retries > 0) {
2552 IPW_WARNING("Parity error. Retrying init.\n");
2553 retries--;
2554 goto retry;
2555 }
2556
2557 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
2558 rc = -EIO;
2559 goto error;
2560 }
2561
2562 /* wait for the device */
Jeff Garzikbf794512005-07-31 13:07:26 -04002563 rc = ipw_poll_bit(priv, CX2_INTA_RW,
2564 CX2_INTA_BIT_FW_INITIALIZATION_DONE, 500);
James Ketrenos43f66a62005-03-25 12:31:53 -06002565 if (rc < 0) {
2566 IPW_ERROR("device failed to start after 500ms\n");
2567 goto error;
2568 }
2569 IPW_DEBUG_INFO("device response after %dms\n", rc);
2570
2571 /* ack fw init done interrupt */
2572 ipw_write32(priv, CX2_INTA_RW, CX2_INTA_BIT_FW_INITIALIZATION_DONE);
2573
2574 /* read eeprom data and initialize the eeprom region of sram */
2575 priv->eeprom_delay = 1;
Jeff Garzikbf794512005-07-31 13:07:26 -04002576 ipw_eeprom_init_sram(priv);
James Ketrenos43f66a62005-03-25 12:31:53 -06002577
2578 /* enable interrupts */
2579 ipw_enable_interrupts(priv);
2580
2581 /* Ensure our queue has valid packets */
2582 ipw_rx_queue_replenish(priv);
2583
2584 ipw_write32(priv, CX2_RX_READ_INDEX, priv->rxq->read);
2585
2586 /* ack pending interrupts */
2587 ipw_write32(priv, CX2_INTA_RW, CX2_INTA_MASK_ALL);
2588
2589#ifndef CONFIG_PM
2590 release_firmware(bootfw);
2591 release_firmware(ucode);
2592 release_firmware(firmware);
2593#endif
2594 return 0;
2595
2596 error:
2597 if (priv->rxq) {
2598 ipw_rx_queue_free(priv, priv->rxq);
2599 priv->rxq = NULL;
2600 }
2601 ipw_tx_queue_free(priv);
2602 if (bootfw)
2603 release_firmware(bootfw);
2604 if (ucode)
2605 release_firmware(ucode);
2606 if (firmware)
2607 release_firmware(firmware);
2608#ifdef CONFIG_PM
2609 fw_loaded = 0;
2610 bootfw = ucode = firmware = NULL;
2611#endif
2612
2613 return rc;
2614}
2615
Jeff Garzikbf794512005-07-31 13:07:26 -04002616/**
James Ketrenos43f66a62005-03-25 12:31:53 -06002617 * DMA services
2618 *
2619 * Theory of operation
2620 *
2621 * A queue is a circular buffers with 'Read' and 'Write' pointers.
2622 * 2 empty entries always kept in the buffer to protect from overflow.
2623 *
2624 * For Tx queue, there are low mark and high mark limits. If, after queuing
Jeff Garzikbf794512005-07-31 13:07:26 -04002625 * the packet for Tx, free space become < low mark, Tx queue stopped. When
2626 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
James Ketrenos43f66a62005-03-25 12:31:53 -06002627 * Tx queue resumed.
2628 *
2629 * The IPW operates with six queues, one receive queue in the device's
2630 * sram, one transmit queue for sending commands to the device firmware,
Jeff Garzikbf794512005-07-31 13:07:26 -04002631 * and four transmit queues for data.
James Ketrenos43f66a62005-03-25 12:31:53 -06002632 *
Jeff Garzikbf794512005-07-31 13:07:26 -04002633 * The four transmit queues allow for performing quality of service (qos)
James Ketrenos43f66a62005-03-25 12:31:53 -06002634 * transmissions as per the 802.11 protocol. Currently Linux does not
Jeff Garzikbf794512005-07-31 13:07:26 -04002635 * provide a mechanism to the user for utilizing prioritized queues, so
James Ketrenos43f66a62005-03-25 12:31:53 -06002636 * we only utilize the first data transmit queue (queue1).
2637 */
2638
2639/**
2640 * Driver allocates buffers of this size for Rx
2641 */
2642
2643static inline int ipw_queue_space(const struct clx2_queue *q)
2644{
2645 int s = q->last_used - q->first_empty;
2646 if (s <= 0)
2647 s += q->n_bd;
2648 s -= 2; /* keep some reserve to not confuse empty and full situations */
2649 if (s < 0)
2650 s = 0;
2651 return s;
2652}
2653
2654static inline int ipw_queue_inc_wrap(int index, int n_bd)
2655{
2656 return (++index == n_bd) ? 0 : index;
2657}
2658
2659/**
2660 * Initialize common DMA queue structure
Jeff Garzikbf794512005-07-31 13:07:26 -04002661 *
James Ketrenos43f66a62005-03-25 12:31:53 -06002662 * @param q queue to init
2663 * @param count Number of BD's to allocate. Should be power of 2
2664 * @param read_register Address for 'read' register
2665 * (not offset within BAR, full address)
2666 * @param write_register Address for 'write' register
2667 * (not offset within BAR, full address)
2668 * @param base_register Address for 'base' register
2669 * (not offset within BAR, full address)
2670 * @param size Address for 'size' register
2671 * (not offset within BAR, full address)
2672 */
Jeff Garzikbf794512005-07-31 13:07:26 -04002673static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
James Ketrenos43f66a62005-03-25 12:31:53 -06002674 int count, u32 read, u32 write,
2675 u32 base, u32 size)
2676{
2677 q->n_bd = count;
2678
2679 q->low_mark = q->n_bd / 4;
2680 if (q->low_mark < 4)
2681 q->low_mark = 4;
2682
2683 q->high_mark = q->n_bd / 8;
2684 if (q->high_mark < 2)
2685 q->high_mark = 2;
2686
2687 q->first_empty = q->last_used = 0;
2688 q->reg_r = read;
2689 q->reg_w = write;
2690
2691 ipw_write32(priv, base, q->dma_addr);
2692 ipw_write32(priv, size, count);
2693 ipw_write32(priv, read, 0);
2694 ipw_write32(priv, write, 0);
2695
2696 _ipw_read32(priv, 0x90);
2697}
2698
Jeff Garzikbf794512005-07-31 13:07:26 -04002699static int ipw_queue_tx_init(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06002700 struct clx2_tx_queue *q,
2701 int count, u32 read, u32 write,
2702 u32 base, u32 size)
2703{
2704 struct pci_dev *dev = priv->pci_dev;
2705
2706 q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
2707 if (!q->txb) {
2708 IPW_ERROR("vmalloc for auxilary BD structures failed\n");
2709 return -ENOMEM;
2710 }
2711
2712 q->bd = pci_alloc_consistent(dev,sizeof(q->bd[0])*count, &q->q.dma_addr);
2713 if (!q->bd) {
Jiri Bencaaa4d302005-06-07 14:58:41 +02002714 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06002715 sizeof(q->bd[0]) * count);
2716 kfree(q->txb);
2717 q->txb = NULL;
2718 return -ENOMEM;
2719 }
2720
2721 ipw_queue_init(priv, &q->q, count, read, write, base, size);
2722 return 0;
2723}
2724
2725/**
2726 * Free one TFD, those at index [txq->q.last_used].
2727 * Do NOT advance any indexes
Jeff Garzikbf794512005-07-31 13:07:26 -04002728 *
James Ketrenos43f66a62005-03-25 12:31:53 -06002729 * @param dev
2730 * @param txq
2731 */
2732static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
2733 struct clx2_tx_queue *txq)
2734{
2735 struct tfd_frame *bd = &txq->bd[txq->q.last_used];
2736 struct pci_dev *dev = priv->pci_dev;
2737 int i;
Jeff Garzikbf794512005-07-31 13:07:26 -04002738
James Ketrenos43f66a62005-03-25 12:31:53 -06002739 /* classify bd */
2740 if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
2741 /* nothing to cleanup after for host commands */
2742 return;
2743
2744 /* sanity check */
2745 if (bd->u.data.num_chunks > NUM_TFD_CHUNKS) {
2746 IPW_ERROR("Too many chunks: %i\n", bd->u.data.num_chunks);
2747 /** @todo issue fatal error, it is quite serious situation */
2748 return;
2749 }
2750
2751 /* unmap chunks if any */
2752 for (i = 0; i < bd->u.data.num_chunks; i++) {
2753 pci_unmap_single(dev, bd->u.data.chunk_ptr[i],
2754 bd->u.data.chunk_len[i], PCI_DMA_TODEVICE);
2755 if (txq->txb[txq->q.last_used]) {
2756 ieee80211_txb_free(txq->txb[txq->q.last_used]);
2757 txq->txb[txq->q.last_used] = NULL;
2758 }
2759 }
2760}
2761
2762/**
2763 * Deallocate DMA queue.
Jeff Garzikbf794512005-07-31 13:07:26 -04002764 *
James Ketrenos43f66a62005-03-25 12:31:53 -06002765 * Empty queue by removing and destroying all BD's.
2766 * Free all buffers.
Jeff Garzikbf794512005-07-31 13:07:26 -04002767 *
James Ketrenos43f66a62005-03-25 12:31:53 -06002768 * @param dev
2769 * @param q
2770 */
2771static void ipw_queue_tx_free(struct ipw_priv *priv,
2772 struct clx2_tx_queue *txq)
2773{
2774 struct clx2_queue *q = &txq->q;
2775 struct pci_dev *dev = priv->pci_dev;
2776
Jeff Garzikbf794512005-07-31 13:07:26 -04002777 if (q->n_bd == 0)
2778 return;
James Ketrenos43f66a62005-03-25 12:31:53 -06002779
2780 /* first, empty all BD's */
2781 for (; q->first_empty != q->last_used;
2782 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
2783 ipw_queue_tx_free_tfd(priv, txq);
2784 }
Jeff Garzikbf794512005-07-31 13:07:26 -04002785
James Ketrenos43f66a62005-03-25 12:31:53 -06002786 /* free buffers belonging to queue itself */
Jeff Garzikbf794512005-07-31 13:07:26 -04002787 pci_free_consistent(dev, sizeof(txq->bd[0])*q->n_bd, txq->bd,
James Ketrenos43f66a62005-03-25 12:31:53 -06002788 q->dma_addr);
2789 kfree(txq->txb);
2790
2791 /* 0 fill whole structure */
2792 memset(txq, 0, sizeof(*txq));
2793}
2794
2795
2796/**
2797 * Destroy all DMA queues and structures
Jeff Garzikbf794512005-07-31 13:07:26 -04002798 *
James Ketrenos43f66a62005-03-25 12:31:53 -06002799 * @param priv
2800 */
2801static void ipw_tx_queue_free(struct ipw_priv *priv)
2802{
2803 /* Tx CMD queue */
2804 ipw_queue_tx_free(priv, &priv->txq_cmd);
2805
2806 /* Tx queues */
2807 ipw_queue_tx_free(priv, &priv->txq[0]);
2808 ipw_queue_tx_free(priv, &priv->txq[1]);
2809 ipw_queue_tx_free(priv, &priv->txq[2]);
2810 ipw_queue_tx_free(priv, &priv->txq[3]);
2811}
2812
2813static void inline __maybe_wake_tx(struct ipw_priv *priv)
2814{
2815 if (netif_running(priv->net_dev)) {
2816 switch (priv->port_type) {
2817 case DCR_TYPE_MU_BSS:
2818 case DCR_TYPE_MU_IBSS:
2819 if (!(priv->status & STATUS_ASSOCIATED)) {
2820 return;
2821 }
2822 }
2823 netif_wake_queue(priv->net_dev);
2824 }
2825
2826}
2827
2828static inline void ipw_create_bssid(struct ipw_priv *priv, u8 *bssid)
2829{
2830 /* First 3 bytes are manufacturer */
2831 bssid[0] = priv->mac_addr[0];
2832 bssid[1] = priv->mac_addr[1];
2833 bssid[2] = priv->mac_addr[2];
2834
2835 /* Last bytes are random */
2836 get_random_bytes(&bssid[3], ETH_ALEN-3);
2837
2838 bssid[0] &= 0xfe; /* clear multicast bit */
2839 bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */
2840}
2841
2842static inline u8 ipw_add_station(struct ipw_priv *priv, u8 *bssid)
2843{
2844 struct ipw_station_entry entry;
2845 int i;
2846
2847 for (i = 0; i < priv->num_stations; i++) {
2848 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) {
2849 /* Another node is active in network */
2850 priv->missed_adhoc_beacons = 0;
2851 if (!(priv->config & CFG_STATIC_CHANNEL))
2852 /* when other nodes drop out, we drop out */
2853 priv->config &= ~CFG_ADHOC_PERSIST;
2854
2855 return i;
2856 }
2857 }
2858
2859 if (i == MAX_STATIONS)
2860 return IPW_INVALID_STATION;
2861
2862 IPW_DEBUG_SCAN("Adding AdHoc station: " MAC_FMT "\n", MAC_ARG(bssid));
2863
2864 entry.reserved = 0;
2865 entry.support_mode = 0;
2866 memcpy(entry.mac_addr, bssid, ETH_ALEN);
2867 memcpy(priv->stations[i], bssid, ETH_ALEN);
2868 ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
2869 &entry,
2870 sizeof(entry));
2871 priv->num_stations++;
2872
2873 return i;
2874}
2875
2876static inline u8 ipw_find_station(struct ipw_priv *priv, u8 *bssid)
2877{
2878 int i;
2879
Jeff Garzikbf794512005-07-31 13:07:26 -04002880 for (i = 0; i < priv->num_stations; i++)
2881 if (!memcmp(priv->stations[i], bssid, ETH_ALEN))
James Ketrenos43f66a62005-03-25 12:31:53 -06002882 return i;
2883
2884 return IPW_INVALID_STATION;
2885}
2886
2887static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
2888{
2889 int err;
2890
2891 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))) {
2892 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
2893 return;
2894 }
2895
2896 IPW_DEBUG_ASSOC("Disassocation attempt from " MAC_FMT " "
2897 "on channel %d.\n",
Jeff Garzikbf794512005-07-31 13:07:26 -04002898 MAC_ARG(priv->assoc_request.bssid),
James Ketrenos43f66a62005-03-25 12:31:53 -06002899 priv->assoc_request.channel);
2900
2901 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
2902 priv->status |= STATUS_DISASSOCIATING;
2903
2904 if (quiet)
2905 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
2906 else
2907 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
2908 err = ipw_send_associate(priv, &priv->assoc_request);
2909 if (err) {
2910 IPW_DEBUG_HC("Attempt to send [dis]associate command "
2911 "failed.\n");
2912 return;
2913 }
2914
2915}
2916
2917static void ipw_disassociate(void *data)
2918{
2919 ipw_send_disassociate(data, 0);
2920}
2921
2922static void notify_wx_assoc_event(struct ipw_priv *priv)
2923{
2924 union iwreq_data wrqu;
2925 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
2926 if (priv->status & STATUS_ASSOCIATED)
2927 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
2928 else
2929 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
2930 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
2931}
2932
2933struct ipw_status_code {
2934 u16 status;
2935 const char *reason;
2936};
2937
2938static const struct ipw_status_code ipw_status_codes[] = {
2939 {0x00, "Successful"},
2940 {0x01, "Unspecified failure"},
2941 {0x0A, "Cannot support all requested capabilities in the "
2942 "Capability information field"},
2943 {0x0B, "Reassociation denied due to inability to confirm that "
2944 "association exists"},
2945 {0x0C, "Association denied due to reason outside the scope of this "
2946 "standard"},
2947 {0x0D, "Responding station does not support the specified authentication "
2948 "algorithm"},
2949 {0x0E, "Received an Authentication frame with authentication sequence "
2950 "transaction sequence number out of expected sequence"},
2951 {0x0F, "Authentication rejected because of challenge failure"},
2952 {0x10, "Authentication rejected due to timeout waiting for next "
2953 "frame in sequence"},
2954 {0x11, "Association denied because AP is unable to handle additional "
2955 "associated stations"},
2956 {0x12, "Association denied due to requesting station not supporting all "
2957 "of the datarates in the BSSBasicServiceSet Parameter"},
2958 {0x13, "Association denied due to requesting station not supporting "
2959 "short preamble operation"},
2960 {0x14, "Association denied due to requesting station not supporting "
2961 "PBCC encoding"},
2962 {0x15, "Association denied due to requesting station not supporting "
2963 "channel agility"},
2964 {0x19, "Association denied due to requesting station not supporting "
2965 "short slot operation"},
2966 {0x1A, "Association denied due to requesting station not supporting "
2967 "DSSS-OFDM operation"},
2968 {0x28, "Invalid Information Element"},
2969 {0x29, "Group Cipher is not valid"},
2970 {0x2A, "Pairwise Cipher is not valid"},
2971 {0x2B, "AKMP is not valid"},
2972 {0x2C, "Unsupported RSN IE version"},
2973 {0x2D, "Invalid RSN IE Capabilities"},
2974 {0x2E, "Cipher suite is rejected per security policy"},
2975};
2976
2977#ifdef CONFIG_IPW_DEBUG
Jeff Garzikbf794512005-07-31 13:07:26 -04002978static const char *ipw_get_status_code(u16 status)
James Ketrenos43f66a62005-03-25 12:31:53 -06002979{
2980 int i;
Jeff Garzikbf794512005-07-31 13:07:26 -04002981 for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
James Ketrenos43f66a62005-03-25 12:31:53 -06002982 if (ipw_status_codes[i].status == status)
2983 return ipw_status_codes[i].reason;
2984 return "Unknown status value.";
2985}
2986#endif
2987
2988static void inline average_init(struct average *avg)
2989{
2990 memset(avg, 0, sizeof(*avg));
2991}
2992
2993static void inline average_add(struct average *avg, s16 val)
2994{
2995 avg->sum -= avg->entries[avg->pos];
2996 avg->sum += val;
2997 avg->entries[avg->pos++] = val;
2998 if (unlikely(avg->pos == AVG_ENTRIES)) {
2999 avg->init = 1;
3000 avg->pos = 0;
3001 }
3002}
3003
3004static s16 inline average_value(struct average *avg)
3005{
3006 if (!unlikely(avg->init)) {
3007 if (avg->pos)
3008 return avg->sum / avg->pos;
3009 return 0;
3010 }
3011
3012 return avg->sum / AVG_ENTRIES;
3013}
3014
3015static void ipw_reset_stats(struct ipw_priv *priv)
3016{
3017 u32 len = sizeof(u32);
3018
3019 priv->quality = 0;
3020
3021 average_init(&priv->average_missed_beacons);
3022 average_init(&priv->average_rssi);
3023 average_init(&priv->average_noise);
3024
3025 priv->last_rate = 0;
3026 priv->last_missed_beacons = 0;
3027 priv->last_rx_packets = 0;
3028 priv->last_tx_packets = 0;
3029 priv->last_tx_failures = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04003030
James Ketrenos43f66a62005-03-25 12:31:53 -06003031 /* Firmware managed, reset only when NIC is restarted, so we have to
3032 * normalize on the current value */
Jeff Garzikbf794512005-07-31 13:07:26 -04003033 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
James Ketrenos43f66a62005-03-25 12:31:53 -06003034 &priv->last_rx_err, &len);
Jeff Garzikbf794512005-07-31 13:07:26 -04003035 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
James Ketrenos43f66a62005-03-25 12:31:53 -06003036 &priv->last_tx_failures, &len);
3037
3038 /* Driver managed, reset with each association */
3039 priv->missed_adhoc_beacons = 0;
3040 priv->missed_beacons = 0;
3041 priv->tx_packets = 0;
3042 priv->rx_packets = 0;
3043
3044}
3045
3046
3047static inline u32 ipw_get_max_rate(struct ipw_priv *priv)
3048{
3049 u32 i = 0x80000000;
3050 u32 mask = priv->rates_mask;
3051 /* If currently associated in B mode, restrict the maximum
3052 * rate match to B rates */
3053 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
3054 mask &= IEEE80211_CCK_RATES_MASK;
3055
3056 /* TODO: Verify that the rate is supported by the current rates
3057 * list. */
3058
3059 while (i && !(mask & i)) i >>= 1;
3060 switch (i) {
3061 case IEEE80211_CCK_RATE_1MB_MASK: return 1000000;
3062 case IEEE80211_CCK_RATE_2MB_MASK: return 2000000;
3063 case IEEE80211_CCK_RATE_5MB_MASK: return 5500000;
3064 case IEEE80211_OFDM_RATE_6MB_MASK: return 6000000;
3065 case IEEE80211_OFDM_RATE_9MB_MASK: return 9000000;
3066 case IEEE80211_CCK_RATE_11MB_MASK: return 11000000;
3067 case IEEE80211_OFDM_RATE_12MB_MASK: return 12000000;
3068 case IEEE80211_OFDM_RATE_18MB_MASK: return 18000000;
3069 case IEEE80211_OFDM_RATE_24MB_MASK: return 24000000;
3070 case IEEE80211_OFDM_RATE_36MB_MASK: return 36000000;
3071 case IEEE80211_OFDM_RATE_48MB_MASK: return 48000000;
3072 case IEEE80211_OFDM_RATE_54MB_MASK: return 54000000;
3073 }
3074
Jeff Garzikbf794512005-07-31 13:07:26 -04003075 if (priv->ieee->mode == IEEE_B)
James Ketrenos43f66a62005-03-25 12:31:53 -06003076 return 11000000;
3077 else
3078 return 54000000;
3079}
3080
3081static u32 ipw_get_current_rate(struct ipw_priv *priv)
3082{
3083 u32 rate, len = sizeof(rate);
3084 int err;
3085
Jeff Garzikbf794512005-07-31 13:07:26 -04003086 if (!(priv->status & STATUS_ASSOCIATED))
James Ketrenos43f66a62005-03-25 12:31:53 -06003087 return 0;
3088
3089 if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
Jeff Garzikbf794512005-07-31 13:07:26 -04003090 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
James Ketrenos43f66a62005-03-25 12:31:53 -06003091 &len);
3092 if (err) {
3093 IPW_DEBUG_INFO("failed querying ordinals.\n");
3094 return 0;
3095 }
Jeff Garzikbf794512005-07-31 13:07:26 -04003096 } else
James Ketrenos43f66a62005-03-25 12:31:53 -06003097 return ipw_get_max_rate(priv);
3098
3099 switch (rate) {
Jeff Garzikbf794512005-07-31 13:07:26 -04003100 case IPW_TX_RATE_1MB: return 1000000;
3101 case IPW_TX_RATE_2MB: return 2000000;
3102 case IPW_TX_RATE_5MB: return 5500000;
3103 case IPW_TX_RATE_6MB: return 6000000;
3104 case IPW_TX_RATE_9MB: return 9000000;
3105 case IPW_TX_RATE_11MB: return 11000000;
3106 case IPW_TX_RATE_12MB: return 12000000;
3107 case IPW_TX_RATE_18MB: return 18000000;
3108 case IPW_TX_RATE_24MB: return 24000000;
3109 case IPW_TX_RATE_36MB: return 36000000;
3110 case IPW_TX_RATE_48MB: return 48000000;
3111 case IPW_TX_RATE_54MB: return 54000000;
James Ketrenos43f66a62005-03-25 12:31:53 -06003112 }
3113
3114 return 0;
3115}
3116
3117#define PERFECT_RSSI (-50)
3118#define WORST_RSSI (-85)
3119#define IPW_STATS_INTERVAL (2 * HZ)
3120static void ipw_gather_stats(struct ipw_priv *priv)
3121{
3122 u32 rx_err, rx_err_delta, rx_packets_delta;
3123 u32 tx_failures, tx_failures_delta, tx_packets_delta;
3124 u32 missed_beacons_percent, missed_beacons_delta;
3125 u32 quality = 0;
3126 u32 len = sizeof(u32);
3127 s16 rssi;
Jeff Garzikbf794512005-07-31 13:07:26 -04003128 u32 beacon_quality, signal_quality, tx_quality, rx_quality,
James Ketrenos43f66a62005-03-25 12:31:53 -06003129 rate_quality;
3130
3131 if (!(priv->status & STATUS_ASSOCIATED)) {
3132 priv->quality = 0;
3133 return;
3134 }
3135
3136 /* Update the statistics */
Jeff Garzikbf794512005-07-31 13:07:26 -04003137 ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
James Ketrenos43f66a62005-03-25 12:31:53 -06003138 &priv->missed_beacons, &len);
Jeff Garzikbf794512005-07-31 13:07:26 -04003139 missed_beacons_delta = priv->missed_beacons -
James Ketrenos43f66a62005-03-25 12:31:53 -06003140 priv->last_missed_beacons;
3141 priv->last_missed_beacons = priv->missed_beacons;
3142 if (priv->assoc_request.beacon_interval) {
3143 missed_beacons_percent = missed_beacons_delta *
3144 (HZ * priv->assoc_request.beacon_interval) /
3145 (IPW_STATS_INTERVAL * 10);
3146 } else {
3147 missed_beacons_percent = 0;
3148 }
3149 average_add(&priv->average_missed_beacons, missed_beacons_percent);
3150
3151 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
3152 rx_err_delta = rx_err - priv->last_rx_err;
3153 priv->last_rx_err = rx_err;
3154
3155 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
3156 tx_failures_delta = tx_failures - priv->last_tx_failures;
3157 priv->last_tx_failures = tx_failures;
3158
3159 rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
3160 priv->last_rx_packets = priv->rx_packets;
3161
3162 tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
3163 priv->last_tx_packets = priv->tx_packets;
3164
3165 /* Calculate quality based on the following:
Jeff Garzikbf794512005-07-31 13:07:26 -04003166 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003167 * Missed beacon: 100% = 0, 0% = 70% missed
3168 * Rate: 60% = 1Mbs, 100% = Max
3169 * Rx and Tx errors represent a straight % of total Rx/Tx
3170 * RSSI: 100% = > -50, 0% = < -80
3171 * Rx errors: 100% = 0, 0% = 50% missed
Jeff Garzikbf794512005-07-31 13:07:26 -04003172 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003173 * The lowest computed quality is used.
3174 *
3175 */
3176#define BEACON_THRESHOLD 5
3177 beacon_quality = 100 - missed_beacons_percent;
3178 if (beacon_quality < BEACON_THRESHOLD)
3179 beacon_quality = 0;
3180 else
Jeff Garzikbf794512005-07-31 13:07:26 -04003181 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
James Ketrenos43f66a62005-03-25 12:31:53 -06003182 (100 - BEACON_THRESHOLD);
Jeff Garzikbf794512005-07-31 13:07:26 -04003183 IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003184 beacon_quality, missed_beacons_percent);
Jeff Garzikbf794512005-07-31 13:07:26 -04003185
James Ketrenos43f66a62005-03-25 12:31:53 -06003186 priv->last_rate = ipw_get_current_rate(priv);
3187 rate_quality = priv->last_rate * 40 / priv->last_rate + 60;
3188 IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
3189 rate_quality, priv->last_rate / 1000000);
Jeff Garzikbf794512005-07-31 13:07:26 -04003190
3191 if (rx_packets_delta > 100 &&
3192 rx_packets_delta + rx_err_delta)
3193 rx_quality = 100 - (rx_err_delta * 100) /
James Ketrenos43f66a62005-03-25 12:31:53 -06003194 (rx_packets_delta + rx_err_delta);
3195 else
3196 rx_quality = 100;
3197 IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n",
3198 rx_quality, rx_err_delta, rx_packets_delta);
Jeff Garzikbf794512005-07-31 13:07:26 -04003199
3200 if (tx_packets_delta > 100 &&
3201 tx_packets_delta + tx_failures_delta)
3202 tx_quality = 100 - (tx_failures_delta * 100) /
James Ketrenos43f66a62005-03-25 12:31:53 -06003203 (tx_packets_delta + tx_failures_delta);
3204 else
3205 tx_quality = 100;
3206 IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n",
3207 tx_quality, tx_failures_delta, tx_packets_delta);
Jeff Garzikbf794512005-07-31 13:07:26 -04003208
James Ketrenos43f66a62005-03-25 12:31:53 -06003209 rssi = average_value(&priv->average_rssi);
3210 if (rssi > PERFECT_RSSI)
3211 signal_quality = 100;
3212 else if (rssi < WORST_RSSI)
3213 signal_quality = 0;
3214 else
Jeff Garzikbf794512005-07-31 13:07:26 -04003215 signal_quality = (rssi - WORST_RSSI) * 100 /
James Ketrenos43f66a62005-03-25 12:31:53 -06003216 (PERFECT_RSSI - WORST_RSSI);
3217 IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
3218 signal_quality, rssi);
Jeff Garzikbf794512005-07-31 13:07:26 -04003219
3220 quality = min(beacon_quality,
James Ketrenos43f66a62005-03-25 12:31:53 -06003221 min(rate_quality,
3222 min(tx_quality, min(rx_quality, signal_quality))));
3223 if (quality == beacon_quality)
3224 IPW_DEBUG_STATS(
Jeff Garzikbf794512005-07-31 13:07:26 -04003225 "Quality (%d%%): Clamped to missed beacons.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003226 quality);
3227 if (quality == rate_quality)
3228 IPW_DEBUG_STATS(
Jeff Garzikbf794512005-07-31 13:07:26 -04003229 "Quality (%d%%): Clamped to rate quality.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003230 quality);
3231 if (quality == tx_quality)
3232 IPW_DEBUG_STATS(
Jeff Garzikbf794512005-07-31 13:07:26 -04003233 "Quality (%d%%): Clamped to Tx quality.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003234 quality);
3235 if (quality == rx_quality)
3236 IPW_DEBUG_STATS(
Jeff Garzikbf794512005-07-31 13:07:26 -04003237 "Quality (%d%%): Clamped to Rx quality.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003238 quality);
3239 if (quality == signal_quality)
3240 IPW_DEBUG_STATS(
Jeff Garzikbf794512005-07-31 13:07:26 -04003241 "Quality (%d%%): Clamped to signal quality.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003242 quality);
3243
3244 priv->quality = quality;
Jeff Garzikbf794512005-07-31 13:07:26 -04003245
3246 queue_delayed_work(priv->workqueue, &priv->gather_stats,
James Ketrenos43f66a62005-03-25 12:31:53 -06003247 IPW_STATS_INTERVAL);
3248}
3249
3250/**
3251 * Handle host notification packet.
3252 * Called from interrupt routine
3253 */
3254static inline void ipw_rx_notification(struct ipw_priv* priv,
3255 struct ipw_rx_notification *notif)
3256{
Jeff Garzikbf794512005-07-31 13:07:26 -04003257 IPW_DEBUG_NOTIF("type = %i (%d bytes)\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003258 notif->subtype, notif->size);
Jeff Garzikbf794512005-07-31 13:07:26 -04003259
James Ketrenos43f66a62005-03-25 12:31:53 -06003260 switch (notif->subtype) {
3261 case HOST_NOTIFICATION_STATUS_ASSOCIATED: {
3262 struct notif_association *assoc = &notif->u.assoc;
Jeff Garzikbf794512005-07-31 13:07:26 -04003263
James Ketrenos43f66a62005-03-25 12:31:53 -06003264 switch (assoc->state) {
3265 case CMAS_ASSOCIATED: {
3266 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
Jeff Garzikbf794512005-07-31 13:07:26 -04003267 "associated: '%s' " MAC_FMT " \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003268 escape_essid(priv->essid, priv->essid_len),
3269 MAC_ARG(priv->bssid));
Jeff Garzikbf794512005-07-31 13:07:26 -04003270
James Ketrenos43f66a62005-03-25 12:31:53 -06003271 switch (priv->ieee->iw_mode) {
3272 case IW_MODE_INFRA:
Jeff Garzikbf794512005-07-31 13:07:26 -04003273 memcpy(priv->ieee->bssid, priv->bssid,
James Ketrenos43f66a62005-03-25 12:31:53 -06003274 ETH_ALEN);
3275 break;
3276
3277 case IW_MODE_ADHOC:
Jeff Garzikbf794512005-07-31 13:07:26 -04003278 memcpy(priv->ieee->bssid, priv->bssid,
James Ketrenos43f66a62005-03-25 12:31:53 -06003279 ETH_ALEN);
Jeff Garzikbf794512005-07-31 13:07:26 -04003280
James Ketrenos43f66a62005-03-25 12:31:53 -06003281 /* clear out the station table */
3282 priv->num_stations = 0;
3283
3284 IPW_DEBUG_ASSOC("queueing adhoc check\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04003285 queue_delayed_work(priv->workqueue,
James Ketrenos43f66a62005-03-25 12:31:53 -06003286 &priv->adhoc_check,
3287 priv->assoc_request.beacon_interval);
3288 break;
3289 }
3290
3291 priv->status &= ~STATUS_ASSOCIATING;
3292 priv->status |= STATUS_ASSOCIATED;
3293
3294 netif_carrier_on(priv->net_dev);
3295 if (netif_queue_stopped(priv->net_dev)) {
3296 IPW_DEBUG_NOTIF("waking queue\n");
3297 netif_wake_queue(priv->net_dev);
3298 } else {
3299 IPW_DEBUG_NOTIF("starting queue\n");
3300 netif_start_queue(priv->net_dev);
3301 }
3302
3303 ipw_reset_stats(priv);
3304 /* Ensure the rate is updated immediately */
3305 priv->last_rate = ipw_get_current_rate(priv);
3306 schedule_work(&priv->gather_stats);
3307 notify_wx_assoc_event(priv);
3308
Jeff Garzikbf794512005-07-31 13:07:26 -04003309/* queue_delayed_work(priv->workqueue,
James Ketrenos43f66a62005-03-25 12:31:53 -06003310 &priv->request_scan,
3311 SCAN_ASSOCIATED_INTERVAL);
3312*/
3313 break;
3314 }
Jeff Garzikbf794512005-07-31 13:07:26 -04003315
James Ketrenos43f66a62005-03-25 12:31:53 -06003316 case CMAS_AUTHENTICATED: {
3317 if (priv->status & (STATUS_ASSOCIATED | STATUS_AUTH)) {
3318#ifdef CONFIG_IPW_DEBUG
3319 struct notif_authenticate *auth = &notif->u.auth;
3320 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
Jeff Garzikbf794512005-07-31 13:07:26 -04003321 "deauthenticated: '%s' " MAC_FMT ": (0x%04X) - %s \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003322 escape_essid(priv->essid, priv->essid_len),
3323 MAC_ARG(priv->bssid),
3324 ntohs(auth->status),
3325 ipw_get_status_code(ntohs(auth->status)));
3326#endif
3327
3328 priv->status &= ~(STATUS_ASSOCIATING |
3329 STATUS_AUTH |
3330 STATUS_ASSOCIATED);
3331
3332 netif_carrier_off(priv->net_dev);
3333 netif_stop_queue(priv->net_dev);
3334 queue_work(priv->workqueue, &priv->request_scan);
Jeff Garzikbf794512005-07-31 13:07:26 -04003335 notify_wx_assoc_event(priv);
James Ketrenos43f66a62005-03-25 12:31:53 -06003336 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04003337 }
James Ketrenos43f66a62005-03-25 12:31:53 -06003338
3339 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
Jeff Garzikbf794512005-07-31 13:07:26 -04003340 "authenticated: '%s' " MAC_FMT "\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003341 escape_essid(priv->essid, priv->essid_len),
Jeff Garzikbf794512005-07-31 13:07:26 -04003342 MAC_ARG(priv->bssid));
James Ketrenos43f66a62005-03-25 12:31:53 -06003343 break;
3344 }
Jeff Garzikbf794512005-07-31 13:07:26 -04003345
James Ketrenos43f66a62005-03-25 12:31:53 -06003346 case CMAS_INIT: {
3347 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
Jeff Garzikbf794512005-07-31 13:07:26 -04003348 "disassociated: '%s' " MAC_FMT " \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003349 escape_essid(priv->essid, priv->essid_len),
3350 MAC_ARG(priv->bssid));
3351
3352 priv->status &= ~(
3353 STATUS_DISASSOCIATING |
Jeff Garzikbf794512005-07-31 13:07:26 -04003354 STATUS_ASSOCIATING |
James Ketrenos43f66a62005-03-25 12:31:53 -06003355 STATUS_ASSOCIATED |
3356 STATUS_AUTH);
Jeff Garzikbf794512005-07-31 13:07:26 -04003357
James Ketrenos43f66a62005-03-25 12:31:53 -06003358 netif_stop_queue(priv->net_dev);
3359 if (!(priv->status & STATUS_ROAMING)) {
3360 netif_carrier_off(priv->net_dev);
3361 notify_wx_assoc_event(priv);
3362
3363 /* Cancel any queued work ... */
3364 cancel_delayed_work(&priv->request_scan);
3365 cancel_delayed_work(&priv->adhoc_check);
3366
3367 /* Queue up another scan... */
Jeff Garzikbf794512005-07-31 13:07:26 -04003368 queue_work(priv->workqueue,
James Ketrenos43f66a62005-03-25 12:31:53 -06003369 &priv->request_scan);
3370
3371 cancel_delayed_work(&priv->gather_stats);
3372 } else {
3373 priv->status |= STATUS_ROAMING;
Jeff Garzikbf794512005-07-31 13:07:26 -04003374 queue_work(priv->workqueue,
James Ketrenos43f66a62005-03-25 12:31:53 -06003375 &priv->request_scan);
3376 }
Jeff Garzikbf794512005-07-31 13:07:26 -04003377
James Ketrenos43f66a62005-03-25 12:31:53 -06003378 ipw_reset_stats(priv);
3379 break;
3380 }
Jeff Garzikbf794512005-07-31 13:07:26 -04003381
3382 default:
James Ketrenos43f66a62005-03-25 12:31:53 -06003383 IPW_ERROR("assoc: unknown (%d)\n",
3384 assoc->state);
3385 break;
3386 }
3387
3388 break;
3389 }
3390
3391 case HOST_NOTIFICATION_STATUS_AUTHENTICATE: {
3392 struct notif_authenticate *auth = &notif->u.auth;
3393 switch (auth->state) {
3394 case CMAS_AUTHENTICATED:
3395 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
Jeff Garzikbf794512005-07-31 13:07:26 -04003396 "authenticated: '%s' " MAC_FMT " \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003397 escape_essid(priv->essid, priv->essid_len),
3398 MAC_ARG(priv->bssid));
3399 priv->status |= STATUS_AUTH;
3400 break;
3401
3402 case CMAS_INIT:
3403 if (priv->status & STATUS_AUTH) {
3404 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3405 "authentication failed (0x%04X): %s\n",
3406 ntohs(auth->status),
3407 ipw_get_status_code(ntohs(auth->status)));
Jeff Garzikbf794512005-07-31 13:07:26 -04003408 }
James Ketrenos43f66a62005-03-25 12:31:53 -06003409 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
Jeff Garzikbf794512005-07-31 13:07:26 -04003410 "deauthenticated: '%s' " MAC_FMT "\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003411 escape_essid(priv->essid, priv->essid_len),
3412 MAC_ARG(priv->bssid));
3413
3414 priv->status &= ~(STATUS_ASSOCIATING |
3415 STATUS_AUTH |
3416 STATUS_ASSOCIATED);
3417
3418 netif_carrier_off(priv->net_dev);
3419 netif_stop_queue(priv->net_dev);
3420 queue_work(priv->workqueue, &priv->request_scan);
3421 notify_wx_assoc_event(priv);
3422 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04003423
James Ketrenos43f66a62005-03-25 12:31:53 -06003424 case CMAS_TX_AUTH_SEQ_1:
3425 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3426 "AUTH_SEQ_1\n");
3427 break;
3428 case CMAS_RX_AUTH_SEQ_2:
3429 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3430 "AUTH_SEQ_2\n");
3431 break;
3432 case CMAS_AUTH_SEQ_1_PASS:
3433 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3434 "AUTH_SEQ_1_PASS\n");
3435 break;
3436 case CMAS_AUTH_SEQ_1_FAIL:
3437 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3438 "AUTH_SEQ_1_FAIL\n");
3439 break;
3440 case CMAS_TX_AUTH_SEQ_3:
3441 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3442 "AUTH_SEQ_3\n");
3443 break;
3444 case CMAS_RX_AUTH_SEQ_4:
3445 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3446 "RX_AUTH_SEQ_4\n");
3447 break;
3448 case CMAS_AUTH_SEQ_2_PASS:
3449 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3450 "AUTH_SEQ_2_PASS\n");
3451 break;
3452 case CMAS_AUTH_SEQ_2_FAIL:
3453 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3454 "AUT_SEQ_2_FAIL\n");
3455 break;
3456 case CMAS_TX_ASSOC:
3457 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3458 "TX_ASSOC\n");
3459 break;
3460 case CMAS_RX_ASSOC_RESP:
3461 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3462 "RX_ASSOC_RESP\n");
3463 break;
3464 case CMAS_ASSOCIATED:
3465 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
3466 "ASSOCIATED\n");
3467 break;
3468 default:
3469 IPW_DEBUG_NOTIF("auth: failure - %d\n", auth->state);
3470 break;
3471 }
3472 break;
3473 }
3474
3475 case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT: {
3476 struct notif_channel_result *x = &notif->u.channel_result;
Jeff Garzikbf794512005-07-31 13:07:26 -04003477
James Ketrenos43f66a62005-03-25 12:31:53 -06003478 if (notif->size == sizeof(*x)) {
Jeff Garzikbf794512005-07-31 13:07:26 -04003479 IPW_DEBUG_SCAN("Scan result for channel %d\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003480 x->channel_num);
3481 } else {
3482 IPW_DEBUG_SCAN("Scan result of wrong size %d "
Jiri Bencaaa4d302005-06-07 14:58:41 +02003483 "(should be %zd)\n",
3484 notif->size, sizeof(*x));
James Ketrenos43f66a62005-03-25 12:31:53 -06003485 }
3486 break;
3487 }
3488
3489 case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED: {
3490 struct notif_scan_complete* x = &notif->u.scan_complete;
3491 if (notif->size == sizeof(*x)) {
3492 IPW_DEBUG_SCAN("Scan completed: type %d, %d channels, "
3493 "%d status\n",
Jeff Garzikbf794512005-07-31 13:07:26 -04003494 x->scan_type,
3495 x->num_channels,
James Ketrenos43f66a62005-03-25 12:31:53 -06003496 x->status);
3497 } else {
3498 IPW_ERROR("Scan completed of wrong size %d "
Jiri Bencaaa4d302005-06-07 14:58:41 +02003499 "(should be %zd)\n",
3500 notif->size, sizeof(*x));
James Ketrenos43f66a62005-03-25 12:31:53 -06003501 }
Jeff Garzikbf794512005-07-31 13:07:26 -04003502
James Ketrenos43f66a62005-03-25 12:31:53 -06003503 priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3504
3505 cancel_delayed_work(&priv->scan_check);
Jeff Garzikbf794512005-07-31 13:07:26 -04003506
3507 if (!(priv->status & (STATUS_ASSOCIATED |
James Ketrenos43f66a62005-03-25 12:31:53 -06003508 STATUS_ASSOCIATING |
3509 STATUS_ROAMING |
3510 STATUS_DISASSOCIATING)))
3511 queue_work(priv->workqueue, &priv->associate);
3512 else if (priv->status & STATUS_ROAMING) {
3513 /* If a scan completed and we are in roam mode, then
3514 * the scan that completed was the one requested as a
Jeff Garzikbf794512005-07-31 13:07:26 -04003515 * result of entering roam... so, schedule the
James Ketrenos43f66a62005-03-25 12:31:53 -06003516 * roam work */
3517 queue_work(priv->workqueue, &priv->roam);
3518 } else if (priv->status & STATUS_SCAN_PENDING)
3519 queue_work(priv->workqueue, &priv->request_scan);
3520
3521 priv->ieee->scans++;
3522 break;
3523 }
3524
3525 case HOST_NOTIFICATION_STATUS_FRAG_LENGTH: {
3526 struct notif_frag_length *x = &notif->u.frag_len;
3527
3528 if (notif->size == sizeof(*x)) {
3529 IPW_ERROR("Frag length: %d\n", x->frag_length);
3530 } else {
3531 IPW_ERROR("Frag length of wrong size %d "
Jiri Bencaaa4d302005-06-07 14:58:41 +02003532 "(should be %zd)\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003533 notif->size, sizeof(*x));
3534 }
3535 break;
3536 }
3537
3538 case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION: {
Jeff Garzikbf794512005-07-31 13:07:26 -04003539 struct notif_link_deterioration *x =
James Ketrenos43f66a62005-03-25 12:31:53 -06003540 &notif->u.link_deterioration;
3541 if (notif->size==sizeof(*x)) {
3542 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
Jeff Garzikbf794512005-07-31 13:07:26 -04003543 "link deterioration: '%s' " MAC_FMT " \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003544 escape_essid(priv->essid, priv->essid_len),
3545 MAC_ARG(priv->bssid));
3546 memcpy(&priv->last_link_deterioration, x, sizeof(*x));
3547 } else {
3548 IPW_ERROR("Link Deterioration of wrong size %d "
Jiri Bencaaa4d302005-06-07 14:58:41 +02003549 "(should be %zd)\n",
3550 notif->size, sizeof(*x));
James Ketrenos43f66a62005-03-25 12:31:53 -06003551 }
3552 break;
3553 }
3554
3555 case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE: {
3556 IPW_ERROR("Dino config\n");
3557 if (priv->hcmd && priv->hcmd->cmd == HOST_CMD_DINO_CONFIG) {
3558 /* TODO: Do anything special? */
3559 } else {
3560 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
3561 }
3562 break;
3563 }
3564
3565 case HOST_NOTIFICATION_STATUS_BEACON_STATE: {
3566 struct notif_beacon_state *x = &notif->u.beacon_state;
3567 if (notif->size != sizeof(*x)) {
3568 IPW_ERROR("Beacon state of wrong size %d (should "
Jiri Bencaaa4d302005-06-07 14:58:41 +02003569 "be %zd)\n", notif->size, sizeof(*x));
James Ketrenos43f66a62005-03-25 12:31:53 -06003570 break;
3571 }
3572
3573 if (x->state == HOST_NOTIFICATION_STATUS_BEACON_MISSING) {
3574 if (priv->status & STATUS_SCANNING) {
3575 /* Stop scan to keep fw from getting
3576 * stuck... */
3577 queue_work(priv->workqueue,
3578 &priv->abort_scan);
3579 }
3580
3581 if (x->number > priv->missed_beacon_threshold &&
3582 priv->status & STATUS_ASSOCIATED) {
Jeff Garzikbf794512005-07-31 13:07:26 -04003583 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
James Ketrenos43f66a62005-03-25 12:31:53 -06003584 IPW_DL_STATE,
3585 "Missed beacon: %d - disassociate\n",
3586 x->number);
Jeff Garzikbf794512005-07-31 13:07:26 -04003587 queue_work(priv->workqueue,
James Ketrenos43f66a62005-03-25 12:31:53 -06003588 &priv->disassociate);
3589 } else if (x->number > priv->roaming_threshold) {
Jeff Garzikbf794512005-07-31 13:07:26 -04003590 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
James Ketrenos43f66a62005-03-25 12:31:53 -06003591 "Missed beacon: %d - initiate "
3592 "roaming\n",
3593 x->number);
3594 queue_work(priv->workqueue,
3595 &priv->roam);
3596 } else {
3597 IPW_DEBUG_NOTIF("Missed beacon: %d\n",
3598 x->number);
3599 }
3600
3601 priv->notif_missed_beacons = x->number;
3602
3603 }
3604
3605
3606 break;
3607 }
3608
3609 case HOST_NOTIFICATION_STATUS_TGI_TX_KEY: {
3610 struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
3611 if (notif->size==sizeof(*x)) {
3612 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
3613 "0x%02x station %d\n",
3614 x->key_state,x->security_type,
3615 x->station_index);
3616 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04003617 }
James Ketrenos43f66a62005-03-25 12:31:53 -06003618
Jiri Bencaaa4d302005-06-07 14:58:41 +02003619 IPW_ERROR("TGi Tx Key of wrong size %d (should be %zd)\n",
3620 notif->size, sizeof(*x));
James Ketrenos43f66a62005-03-25 12:31:53 -06003621 break;
3622 }
3623
3624 case HOST_NOTIFICATION_CALIB_KEEP_RESULTS: {
3625 struct notif_calibration *x = &notif->u.calibration;
3626
3627 if (notif->size == sizeof(*x)) {
3628 memcpy(&priv->calib, x, sizeof(*x));
3629 IPW_DEBUG_INFO("TODO: Calibration\n");
3630 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04003631 }
3632
Jiri Bencaaa4d302005-06-07 14:58:41 +02003633 IPW_ERROR("Calibration of wrong size %d (should be %zd)\n",
3634 notif->size, sizeof(*x));
James Ketrenos43f66a62005-03-25 12:31:53 -06003635 break;
3636 }
3637
3638 case HOST_NOTIFICATION_NOISE_STATS: {
3639 if (notif->size == sizeof(u32)) {
3640 priv->last_noise = (u8)(notif->u.noise.value & 0xff);
3641 average_add(&priv->average_noise, priv->last_noise);
3642 break;
3643 }
3644
Jiri Bencaaa4d302005-06-07 14:58:41 +02003645 IPW_ERROR("Noise stat is wrong size %d (should be %zd)\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06003646 notif->size, sizeof(u32));
3647 break;
3648 }
3649
3650 default:
3651 IPW_ERROR("Unknown notification: "
3652 "subtype=%d,flags=0x%2x,size=%d\n",
3653 notif->subtype, notif->flags, notif->size);
3654 }
3655}
3656
3657/**
3658 * Destroys all DMA structures and initialise them again
Jeff Garzikbf794512005-07-31 13:07:26 -04003659 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003660 * @param priv
3661 * @return error code
3662 */
3663static int ipw_queue_reset(struct ipw_priv *priv)
3664{
3665 int rc = 0;
3666 /** @todo customize queue sizes */
3667 int nTx = 64, nTxCmd = 8;
3668 ipw_tx_queue_free(priv);
3669 /* Tx CMD queue */
3670 rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
3671 CX2_TX_CMD_QUEUE_READ_INDEX,
3672 CX2_TX_CMD_QUEUE_WRITE_INDEX,
3673 CX2_TX_CMD_QUEUE_BD_BASE,
3674 CX2_TX_CMD_QUEUE_BD_SIZE);
3675 if (rc) {
3676 IPW_ERROR("Tx Cmd queue init failed\n");
3677 goto error;
3678 }
3679 /* Tx queue(s) */
3680 rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
3681 CX2_TX_QUEUE_0_READ_INDEX,
3682 CX2_TX_QUEUE_0_WRITE_INDEX,
3683 CX2_TX_QUEUE_0_BD_BASE,
3684 CX2_TX_QUEUE_0_BD_SIZE);
3685 if (rc) {
3686 IPW_ERROR("Tx 0 queue init failed\n");
3687 goto error;
3688 }
3689 rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
3690 CX2_TX_QUEUE_1_READ_INDEX,
3691 CX2_TX_QUEUE_1_WRITE_INDEX,
3692 CX2_TX_QUEUE_1_BD_BASE,
3693 CX2_TX_QUEUE_1_BD_SIZE);
3694 if (rc) {
3695 IPW_ERROR("Tx 1 queue init failed\n");
3696 goto error;
3697 }
3698 rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
3699 CX2_TX_QUEUE_2_READ_INDEX,
3700 CX2_TX_QUEUE_2_WRITE_INDEX,
3701 CX2_TX_QUEUE_2_BD_BASE,
3702 CX2_TX_QUEUE_2_BD_SIZE);
3703 if (rc) {
3704 IPW_ERROR("Tx 2 queue init failed\n");
3705 goto error;
3706 }
3707 rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
3708 CX2_TX_QUEUE_3_READ_INDEX,
3709 CX2_TX_QUEUE_3_WRITE_INDEX,
3710 CX2_TX_QUEUE_3_BD_BASE,
3711 CX2_TX_QUEUE_3_BD_SIZE);
3712 if (rc) {
3713 IPW_ERROR("Tx 3 queue init failed\n");
3714 goto error;
3715 }
3716 /* statistics */
3717 priv->rx_bufs_min = 0;
3718 priv->rx_pend_max = 0;
3719 return rc;
3720
3721 error:
3722 ipw_tx_queue_free(priv);
3723 return rc;
3724}
3725
3726/**
3727 * Reclaim Tx queue entries no more used by NIC.
Jeff Garzikbf794512005-07-31 13:07:26 -04003728 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003729 * When FW adwances 'R' index, all entries between old and
3730 * new 'R' index need to be reclaimed. As result, some free space
3731 * forms. If there is enough free space (> low mark), wake Tx queue.
Jeff Garzikbf794512005-07-31 13:07:26 -04003732 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003733 * @note Need to protect against garbage in 'R' index
3734 * @param priv
3735 * @param txq
3736 * @param qindex
3737 * @return Number of used entries remains in the queue
3738 */
Jeff Garzikbf794512005-07-31 13:07:26 -04003739static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06003740 struct clx2_tx_queue *txq, int qindex)
3741{
3742 u32 hw_tail;
3743 int used;
3744 struct clx2_queue *q = &txq->q;
3745
3746 hw_tail = ipw_read32(priv, q->reg_r);
3747 if (hw_tail >= q->n_bd) {
3748 IPW_ERROR
3749 ("Read index for DMA queue (%d) is out of range [0-%d)\n",
3750 hw_tail, q->n_bd);
3751 goto done;
3752 }
3753 for (; q->last_used != hw_tail;
3754 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3755 ipw_queue_tx_free_tfd(priv, txq);
3756 priv->tx_packets++;
3757 }
3758 done:
3759 if (ipw_queue_space(q) > q->low_mark && qindex >= 0) {
3760 __maybe_wake_tx(priv);
3761 }
3762 used = q->first_empty - q->last_used;
3763 if (used < 0)
3764 used += q->n_bd;
3765
3766 return used;
3767}
3768
3769static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
3770 int len, int sync)
3771{
3772 struct clx2_tx_queue *txq = &priv->txq_cmd;
3773 struct clx2_queue *q = &txq->q;
3774 struct tfd_frame *tfd;
3775
3776 if (ipw_queue_space(q) < (sync ? 1 : 2)) {
3777 IPW_ERROR("No space for Tx\n");
3778 return -EBUSY;
3779 }
3780
3781 tfd = &txq->bd[q->first_empty];
3782 txq->txb[q->first_empty] = NULL;
3783
3784 memset(tfd, 0, sizeof(*tfd));
3785 tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
3786 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
3787 priv->hcmd_seq++;
3788 tfd->u.cmd.index = hcmd;
3789 tfd->u.cmd.length = len;
3790 memcpy(tfd->u.cmd.payload, buf, len);
3791 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
3792 ipw_write32(priv, q->reg_w, q->first_empty);
3793 _ipw_read32(priv, 0x90);
3794
3795 return 0;
3796}
3797
3798
3799
Jeff Garzikbf794512005-07-31 13:07:26 -04003800/*
James Ketrenos43f66a62005-03-25 12:31:53 -06003801 * Rx theory of operation
3802 *
3803 * The host allocates 32 DMA target addresses and passes the host address
3804 * to the firmware at register CX2_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3805 * 0 to 31
3806 *
3807 * Rx Queue Indexes
3808 * The host/firmware share two index registers for managing the Rx buffers.
3809 *
Jeff Garzikbf794512005-07-31 13:07:26 -04003810 * The READ index maps to the first position that the firmware may be writing
3811 * to -- the driver can read up to (but not including) this position and get
3812 * good data.
James Ketrenos43f66a62005-03-25 12:31:53 -06003813 * The READ index is managed by the firmware once the card is enabled.
3814 *
3815 * The WRITE index maps to the last position the driver has read from -- the
3816 * position preceding WRITE is the last slot the firmware can place a packet.
3817 *
3818 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
Jeff Garzikbf794512005-07-31 13:07:26 -04003819 * WRITE = READ.
James Ketrenos43f66a62005-03-25 12:31:53 -06003820 *
Jeff Garzikbf794512005-07-31 13:07:26 -04003821 * During initialization the host sets up the READ queue position to the first
James Ketrenos43f66a62005-03-25 12:31:53 -06003822 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3823 *
3824 * When the firmware places a packet in a buffer it will advance the READ index
3825 * and fire the RX interrupt. The driver can then query the READ index and
3826 * process as many packets as possible, moving the WRITE index forward as it
3827 * resets the Rx queue buffers with new memory.
Jeff Garzikbf794512005-07-31 13:07:26 -04003828 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003829 * The management in the driver is as follows:
Jeff Garzikbf794512005-07-31 13:07:26 -04003830 * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When
James Ketrenos43f66a62005-03-25 12:31:53 -06003831 * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
Jeff Garzikbf794512005-07-31 13:07:26 -04003832 * to replensish the ipw->rxq->rx_free.
James Ketrenos43f66a62005-03-25 12:31:53 -06003833 * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
3834 * ipw->rxq is replenished and the READ INDEX is updated (updating the
3835 * 'processed' and 'read' driver indexes as well)
3836 * + A received packet is processed and handed to the kernel network stack,
3837 * detached from the ipw->rxq. The driver 'processed' index is updated.
3838 * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
Jeff Garzikbf794512005-07-31 13:07:26 -04003839 * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
3840 * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there
James Ketrenos43f66a62005-03-25 12:31:53 -06003841 * were enough free buffers and RX_STALLED is set it is cleared.
3842 *
3843 *
3844 * Driver sequence:
3845 *
Jeff Garzikbf794512005-07-31 13:07:26 -04003846 * ipw_rx_queue_alloc() Allocates rx_free
James Ketrenos43f66a62005-03-25 12:31:53 -06003847 * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls
3848 * ipw_rx_queue_restock
3849 * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx
3850 * queue, updates firmware pointers, and updates
3851 * the WRITE index. If insufficient rx_free buffers
3852 * are available, schedules ipw_rx_queue_replenish
3853 *
3854 * -- enable interrupts --
3855 * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the
Jeff Garzikbf794512005-07-31 13:07:26 -04003856 * READ INDEX, detaching the SKB from the pool.
James Ketrenos43f66a62005-03-25 12:31:53 -06003857 * Moves the packet buffer from queue to rx_used.
3858 * Calls ipw_rx_queue_restock to refill any empty
3859 * slots.
3860 * ...
3861 *
3862 */
3863
Jeff Garzikbf794512005-07-31 13:07:26 -04003864/*
James Ketrenos43f66a62005-03-25 12:31:53 -06003865 * If there are slots in the RX queue that need to be restocked,
3866 * and we have free pre-allocated buffers, fill the ranks as much
3867 * as we can pulling from rx_free.
3868 *
3869 * This moves the 'write' index forward to catch up with 'processed', and
3870 * also updates the memory address in the firmware to reference the new
3871 * target buffer.
3872 */
3873static void ipw_rx_queue_restock(struct ipw_priv *priv)
3874{
3875 struct ipw_rx_queue *rxq = priv->rxq;
3876 struct list_head *element;
3877 struct ipw_rx_mem_buffer *rxb;
3878 unsigned long flags;
3879 int write;
3880
3881 spin_lock_irqsave(&rxq->lock, flags);
3882 write = rxq->write;
3883 while ((rxq->write != rxq->processed) && (rxq->free_count)) {
3884 element = rxq->rx_free.next;
3885 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
3886 list_del(element);
3887
3888 ipw_write32(priv, CX2_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
3889 rxb->dma_addr);
3890 rxq->queue[rxq->write] = rxb;
3891 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
3892 rxq->free_count--;
3893 }
3894 spin_unlock_irqrestore(&rxq->lock, flags);
3895
Jeff Garzikbf794512005-07-31 13:07:26 -04003896 /* If the pre-allocated buffer pool is dropping low, schedule to
James Ketrenos43f66a62005-03-25 12:31:53 -06003897 * refill it */
3898 if (rxq->free_count <= RX_LOW_WATERMARK)
3899 queue_work(priv->workqueue, &priv->rx_replenish);
3900
3901 /* If we've added more space for the firmware to place data, tell it */
Jeff Garzikbf794512005-07-31 13:07:26 -04003902 if (write != rxq->write)
James Ketrenos43f66a62005-03-25 12:31:53 -06003903 ipw_write32(priv, CX2_RX_WRITE_INDEX, rxq->write);
3904}
3905
3906/*
3907 * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
Jeff Garzikbf794512005-07-31 13:07:26 -04003908 * Also restock the Rx queue via ipw_rx_queue_restock.
3909 *
James Ketrenos43f66a62005-03-25 12:31:53 -06003910 * This is called as a scheduled work item (except for during intialization)
3911 */
3912static void ipw_rx_queue_replenish(void *data)
3913{
3914 struct ipw_priv *priv = data;
3915 struct ipw_rx_queue *rxq = priv->rxq;
3916 struct list_head *element;
3917 struct ipw_rx_mem_buffer *rxb;
3918 unsigned long flags;
3919
3920 spin_lock_irqsave(&rxq->lock, flags);
3921 while (!list_empty(&rxq->rx_used)) {
3922 element = rxq->rx_used.next;
3923 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
3924 rxb->skb = alloc_skb(CX2_RX_BUF_SIZE, GFP_ATOMIC);
3925 if (!rxb->skb) {
3926 printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
3927 priv->net_dev->name);
3928 /* We don't reschedule replenish work here -- we will
3929 * call the restock method and if it still needs
3930 * more buffers it will schedule replenish */
3931 break;
3932 }
3933 list_del(element);
Jeff Garzikbf794512005-07-31 13:07:26 -04003934
James Ketrenos43f66a62005-03-25 12:31:53 -06003935 rxb->rxb = (struct ipw_rx_buffer *)rxb->skb->data;
3936 rxb->dma_addr = pci_map_single(
3937 priv->pci_dev, rxb->skb->data, CX2_RX_BUF_SIZE,
3938 PCI_DMA_FROMDEVICE);
Jeff Garzikbf794512005-07-31 13:07:26 -04003939
James Ketrenos43f66a62005-03-25 12:31:53 -06003940 list_add_tail(&rxb->list, &rxq->rx_free);
3941 rxq->free_count++;
3942 }
3943 spin_unlock_irqrestore(&rxq->lock, flags);
3944
3945 ipw_rx_queue_restock(priv);
3946}
3947
3948/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3949 * If an SKB has been detached, the POOL needs to have it's SKB set to NULL
Jeff Garzikbf794512005-07-31 13:07:26 -04003950 * This free routine walks the list of POOL entries and if SKB is set to
James Ketrenos43f66a62005-03-25 12:31:53 -06003951 * non NULL it is unmapped and freed
3952 */
Jeff Garzikbf794512005-07-31 13:07:26 -04003953static void ipw_rx_queue_free(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06003954 struct ipw_rx_queue *rxq)
3955{
3956 int i;
3957
3958 if (!rxq)
3959 return;
Jeff Garzikbf794512005-07-31 13:07:26 -04003960
James Ketrenos43f66a62005-03-25 12:31:53 -06003961 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
3962 if (rxq->pool[i].skb != NULL) {
3963 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3964 CX2_RX_BUF_SIZE,
3965 PCI_DMA_FROMDEVICE);
3966 dev_kfree_skb(rxq->pool[i].skb);
3967 }
3968 }
3969
3970 kfree(rxq);
3971}
3972
3973static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
3974{
3975 struct ipw_rx_queue *rxq;
3976 int i;
3977
3978 rxq = (struct ipw_rx_queue *)kmalloc(sizeof(*rxq), GFP_KERNEL);
3979 memset(rxq, 0, sizeof(*rxq));
3980 spin_lock_init(&rxq->lock);
3981 INIT_LIST_HEAD(&rxq->rx_free);
3982 INIT_LIST_HEAD(&rxq->rx_used);
3983
3984 /* Fill the rx_used queue with _all_ of the Rx buffers */
Jeff Garzikbf794512005-07-31 13:07:26 -04003985 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
James Ketrenos43f66a62005-03-25 12:31:53 -06003986 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3987
3988 /* Set us so that we have processed and used all buffers, but have
3989 * not restocked the Rx queue with fresh buffers */
3990 rxq->read = rxq->write = 0;
3991 rxq->processed = RX_QUEUE_SIZE - 1;
3992 rxq->free_count = 0;
3993
3994 return rxq;
3995}
3996
3997static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
3998{
3999 rate &= ~IEEE80211_BASIC_RATE_MASK;
4000 if (ieee_mode == IEEE_A) {
4001 switch (rate) {
Jeff Garzikbf794512005-07-31 13:07:26 -04004002 case IEEE80211_OFDM_RATE_6MB:
4003 return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004004 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004005 case IEEE80211_OFDM_RATE_9MB:
4006 return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004007 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004008 case IEEE80211_OFDM_RATE_12MB:
4009 return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004010 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004011 case IEEE80211_OFDM_RATE_18MB:
4012 return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004013 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004014 case IEEE80211_OFDM_RATE_24MB:
4015 return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004016 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004017 case IEEE80211_OFDM_RATE_36MB:
4018 return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004019 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004020 case IEEE80211_OFDM_RATE_48MB:
4021 return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004022 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004023 case IEEE80211_OFDM_RATE_54MB:
4024 return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004025 1 : 0;
4026 default:
4027 return 0;
4028 }
4029 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004030
James Ketrenos43f66a62005-03-25 12:31:53 -06004031 /* B and G mixed */
4032 switch (rate) {
Jeff Garzikbf794512005-07-31 13:07:26 -04004033 case IEEE80211_CCK_RATE_1MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004034 return priv->rates_mask & IEEE80211_CCK_RATE_1MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004035 case IEEE80211_CCK_RATE_2MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004036 return priv->rates_mask & IEEE80211_CCK_RATE_2MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004037 case IEEE80211_CCK_RATE_5MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004038 return priv->rates_mask & IEEE80211_CCK_RATE_5MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004039 case IEEE80211_CCK_RATE_11MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004040 return priv->rates_mask & IEEE80211_CCK_RATE_11MB_MASK ? 1 : 0;
4041 }
4042
4043 /* If we are limited to B modulations, bail at this point */
4044 if (ieee_mode == IEEE_B)
4045 return 0;
4046
4047 /* G */
4048 switch (rate) {
Jeff Garzikbf794512005-07-31 13:07:26 -04004049 case IEEE80211_OFDM_RATE_6MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004050 return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004051 case IEEE80211_OFDM_RATE_9MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004052 return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004053 case IEEE80211_OFDM_RATE_12MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004054 return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004055 case IEEE80211_OFDM_RATE_18MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004056 return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004057 case IEEE80211_OFDM_RATE_24MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004058 return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004059 case IEEE80211_OFDM_RATE_36MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004060 return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004061 case IEEE80211_OFDM_RATE_48MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004062 return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004063 case IEEE80211_OFDM_RATE_54MB:
James Ketrenos43f66a62005-03-25 12:31:53 -06004064 return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
4065 }
4066
4067 return 0;
4068}
4069
Jeff Garzikbf794512005-07-31 13:07:26 -04004070static int ipw_compatible_rates(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06004071 const struct ieee80211_network *network,
4072 struct ipw_supported_rates *rates)
4073{
4074 int num_rates, i;
4075
4076 memset(rates, 0, sizeof(*rates));
4077 num_rates = min(network->rates_len, (u8)IPW_MAX_RATES);
4078 rates->num_rates = 0;
4079 for (i = 0; i < num_rates; i++) {
4080 if (!ipw_is_rate_in_mask(priv, network->mode, network->rates[i])) {
4081 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
4082 network->rates[i], priv->rates_mask);
4083 continue;
4084 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004085
James Ketrenos43f66a62005-03-25 12:31:53 -06004086 rates->supported_rates[rates->num_rates++] = network->rates[i];
4087 }
4088
4089 num_rates = min(network->rates_ex_len, (u8)(IPW_MAX_RATES - num_rates));
4090 for (i = 0; i < num_rates; i++) {
4091 if (!ipw_is_rate_in_mask(priv, network->mode, network->rates_ex[i])) {
4092 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
4093 network->rates_ex[i], priv->rates_mask);
4094 continue;
4095 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004096
James Ketrenos43f66a62005-03-25 12:31:53 -06004097 rates->supported_rates[rates->num_rates++] = network->rates_ex[i];
4098 }
4099
4100 return rates->num_rates;
4101}
4102
4103static inline void ipw_copy_rates(struct ipw_supported_rates *dest,
4104 const struct ipw_supported_rates *src)
4105{
4106 u8 i;
4107 for (i = 0; i < src->num_rates; i++)
4108 dest->supported_rates[i] = src->supported_rates[i];
4109 dest->num_rates = src->num_rates;
4110}
4111
4112/* TODO: Look at sniffed packets in the air to determine if the basic rate
4113 * mask should ever be used -- right now all callers to add the scan rates are
4114 * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
4115static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
4116 u8 modulation, u32 rate_mask)
4117{
Jeff Garzikbf794512005-07-31 13:07:26 -04004118 u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004119 IEEE80211_BASIC_RATE_MASK : 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004120
James Ketrenos43f66a62005-03-25 12:31:53 -06004121 if (rate_mask & IEEE80211_CCK_RATE_1MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004122 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004123 IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
4124
4125 if (rate_mask & IEEE80211_CCK_RATE_2MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004126 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004127 IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
4128
4129 if (rate_mask & IEEE80211_CCK_RATE_5MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004130 rates->supported_rates[rates->num_rates++] = basic_mask |
James Ketrenos43f66a62005-03-25 12:31:53 -06004131 IEEE80211_CCK_RATE_5MB;
4132
4133 if (rate_mask & IEEE80211_CCK_RATE_11MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004134 rates->supported_rates[rates->num_rates++] = basic_mask |
James Ketrenos43f66a62005-03-25 12:31:53 -06004135 IEEE80211_CCK_RATE_11MB;
4136}
4137
4138static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
4139 u8 modulation, u32 rate_mask)
4140{
Jeff Garzikbf794512005-07-31 13:07:26 -04004141 u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004142 IEEE80211_BASIC_RATE_MASK : 0;
4143
4144 if (rate_mask & IEEE80211_OFDM_RATE_6MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004145 rates->supported_rates[rates->num_rates++] = basic_mask |
James Ketrenos43f66a62005-03-25 12:31:53 -06004146 IEEE80211_OFDM_RATE_6MB;
4147
4148 if (rate_mask & IEEE80211_OFDM_RATE_9MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004149 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004150 IEEE80211_OFDM_RATE_9MB;
4151
4152 if (rate_mask & IEEE80211_OFDM_RATE_12MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004153 rates->supported_rates[rates->num_rates++] = basic_mask |
James Ketrenos43f66a62005-03-25 12:31:53 -06004154 IEEE80211_OFDM_RATE_12MB;
4155
4156 if (rate_mask & IEEE80211_OFDM_RATE_18MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004157 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004158 IEEE80211_OFDM_RATE_18MB;
4159
4160 if (rate_mask & IEEE80211_OFDM_RATE_24MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004161 rates->supported_rates[rates->num_rates++] = basic_mask |
James Ketrenos43f66a62005-03-25 12:31:53 -06004162 IEEE80211_OFDM_RATE_24MB;
4163
4164 if (rate_mask & IEEE80211_OFDM_RATE_36MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004165 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004166 IEEE80211_OFDM_RATE_36MB;
4167
4168 if (rate_mask & IEEE80211_OFDM_RATE_48MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004169 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004170 IEEE80211_OFDM_RATE_48MB;
4171
4172 if (rate_mask & IEEE80211_OFDM_RATE_54MB_MASK)
Jeff Garzikbf794512005-07-31 13:07:26 -04004173 rates->supported_rates[rates->num_rates++] =
James Ketrenos43f66a62005-03-25 12:31:53 -06004174 IEEE80211_OFDM_RATE_54MB;
4175}
4176
4177struct ipw_network_match {
4178 struct ieee80211_network *network;
4179 struct ipw_supported_rates rates;
4180};
4181
4182static int ipw_best_network(
4183 struct ipw_priv *priv,
4184 struct ipw_network_match *match,
4185 struct ieee80211_network *network,
4186 int roaming)
4187{
4188 struct ipw_supported_rates rates;
4189
4190 /* Verify that this network's capability is compatible with the
4191 * current mode (AdHoc or Infrastructure) */
4192 if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
Jouni Malinen24743852005-08-14 20:59:59 -07004193 !(network->capability & WLAN_CAPABILITY_ESS)) ||
James Ketrenos43f66a62005-03-25 12:31:53 -06004194 (priv->ieee->iw_mode == IW_MODE_ADHOC &&
4195 !(network->capability & WLAN_CAPABILITY_IBSS))) {
4196 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded due to "
Jeff Garzikbf794512005-07-31 13:07:26 -04004197 "capability mismatch.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06004198 escape_essid(network->ssid, network->ssid_len),
4199 MAC_ARG(network->bssid));
4200 return 0;
4201 }
4202
4203 /* If we do not have an ESSID for this AP, we can not associate with
4204 * it */
4205 if (network->flags & NETWORK_EMPTY_ESSID) {
4206 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4207 "because of hidden ESSID.\n",
4208 escape_essid(network->ssid, network->ssid_len),
4209 MAC_ARG(network->bssid));
4210 return 0;
4211 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004212
James Ketrenos43f66a62005-03-25 12:31:53 -06004213 if (unlikely(roaming)) {
4214 /* If we are roaming, then ensure check if this is a valid
4215 * network to try and roam to */
4216 if ((network->ssid_len != match->network->ssid_len) ||
Jeff Garzikbf794512005-07-31 13:07:26 -04004217 memcmp(network->ssid, match->network->ssid,
James Ketrenos43f66a62005-03-25 12:31:53 -06004218 network->ssid_len)) {
4219 IPW_DEBUG_ASSOC("Netowrk '%s (" MAC_FMT ")' excluded "
4220 "because of non-network ESSID.\n",
Jeff Garzikbf794512005-07-31 13:07:26 -04004221 escape_essid(network->ssid,
James Ketrenos43f66a62005-03-25 12:31:53 -06004222 network->ssid_len),
4223 MAC_ARG(network->bssid));
4224 return 0;
4225 }
4226 } else {
Jeff Garzikbf794512005-07-31 13:07:26 -04004227 /* If an ESSID has been configured then compare the broadcast
4228 * ESSID to ours */
4229 if ((priv->config & CFG_STATIC_ESSID) &&
James Ketrenos43f66a62005-03-25 12:31:53 -06004230 ((network->ssid_len != priv->essid_len) ||
Jeff Garzikbf794512005-07-31 13:07:26 -04004231 memcmp(network->ssid, priv->essid,
James Ketrenos43f66a62005-03-25 12:31:53 -06004232 min(network->ssid_len, priv->essid_len)))) {
4233 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
4234 strncpy(escaped, escape_essid(
4235 network->ssid, network->ssid_len),
4236 sizeof(escaped));
4237 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
Jeff Garzikbf794512005-07-31 13:07:26 -04004238 "because of ESSID mismatch: '%s'.\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06004239 escaped, MAC_ARG(network->bssid),
4240 escape_essid(priv->essid, priv->essid_len));
4241 return 0;
4242 }
4243 }
4244
4245 /* If the old network rate is better than this one, don't bother
4246 * testing everything else. */
Jeff Garzikbf794512005-07-31 13:07:26 -04004247 if (match->network && match->network->stats.rssi >
James Ketrenos43f66a62005-03-25 12:31:53 -06004248 network->stats.rssi) {
4249 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
Jeff Garzikbf794512005-07-31 13:07:26 -04004250 strncpy(escaped,
4251 escape_essid(network->ssid, network->ssid_len),
James Ketrenos43f66a62005-03-25 12:31:53 -06004252 sizeof(escaped));
4253 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded because "
4254 "'%s (" MAC_FMT ")' has a stronger signal.\n",
4255 escaped, MAC_ARG(network->bssid),
4256 escape_essid(match->network->ssid,
4257 match->network->ssid_len),
4258 MAC_ARG(match->network->bssid));
4259 return 0;
4260 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004261
James Ketrenos43f66a62005-03-25 12:31:53 -06004262 /* If this network has already had an association attempt within the
4263 * last 3 seconds, do not try and associate again... */
4264 if (network->last_associate &&
4265 time_after(network->last_associate + (HZ * 5UL), jiffies)) {
4266 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4267 "because of storming (%lu since last "
4268 "assoc attempt).\n",
4269 escape_essid(network->ssid, network->ssid_len),
4270 MAC_ARG(network->bssid),
4271 (jiffies - network->last_associate) / HZ);
4272 return 0;
4273 }
4274
4275 /* Now go through and see if the requested network is valid... */
Jeff Garzikbf794512005-07-31 13:07:26 -04004276 if (priv->ieee->scan_age != 0 &&
James Ketrenos43f66a62005-03-25 12:31:53 -06004277 jiffies - network->last_scanned > priv->ieee->scan_age) {
4278 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4279 "because of age: %lums.\n",
4280 escape_essid(network->ssid, network->ssid_len),
4281 MAC_ARG(network->bssid),
4282 (jiffies - network->last_scanned) / (HZ / 100));
4283 return 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004284 }
James Ketrenos43f66a62005-03-25 12:31:53 -06004285
Jeff Garzikbf794512005-07-31 13:07:26 -04004286 if ((priv->config & CFG_STATIC_CHANNEL) &&
James Ketrenos43f66a62005-03-25 12:31:53 -06004287 (network->channel != priv->channel)) {
4288 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4289 "because of channel mismatch: %d != %d.\n",
4290 escape_essid(network->ssid, network->ssid_len),
4291 MAC_ARG(network->bssid),
4292 network->channel, priv->channel);
4293 return 0;
4294 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004295
James Ketrenos43f66a62005-03-25 12:31:53 -06004296 /* Verify privacy compatability */
Jeff Garzikbf794512005-07-31 13:07:26 -04004297 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
James Ketrenos43f66a62005-03-25 12:31:53 -06004298 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
4299 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4300 "because of privacy mismatch: %s != %s.\n",
4301 escape_essid(network->ssid, network->ssid_len),
4302 MAC_ARG(network->bssid),
Jeff Garzikbf794512005-07-31 13:07:26 -04004303 priv->capability & CAP_PRIVACY_ON ? "on" :
James Ketrenos43f66a62005-03-25 12:31:53 -06004304 "off",
Jeff Garzikbf794512005-07-31 13:07:26 -04004305 network->capability &
James Ketrenos43f66a62005-03-25 12:31:53 -06004306 WLAN_CAPABILITY_PRIVACY ?"on" : "off");
4307 return 0;
4308 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004309
4310 if ((priv->config & CFG_STATIC_BSSID) &&
James Ketrenos43f66a62005-03-25 12:31:53 -06004311 memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
4312 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4313 "because of BSSID mismatch: " MAC_FMT ".\n",
4314 escape_essid(network->ssid, network->ssid_len),
4315 MAC_ARG(network->bssid),
4316 MAC_ARG(priv->bssid));
4317 return 0;
4318 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004319
James Ketrenos43f66a62005-03-25 12:31:53 -06004320 /* Filter out any incompatible freq / mode combinations */
4321 if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
4322 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4323 "because of invalid frequency/mode "
4324 "combination.\n",
4325 escape_essid(network->ssid, network->ssid_len),
4326 MAC_ARG(network->bssid));
4327 return 0;
4328 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004329
James Ketrenos43f66a62005-03-25 12:31:53 -06004330 ipw_compatible_rates(priv, network, &rates);
4331 if (rates.num_rates == 0) {
4332 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
4333 "because of no compatible rates.\n",
4334 escape_essid(network->ssid, network->ssid_len),
4335 MAC_ARG(network->bssid));
4336 return 0;
4337 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004338
James Ketrenos43f66a62005-03-25 12:31:53 -06004339 /* TODO: Perform any further minimal comparititive tests. We do not
4340 * want to put too much policy logic here; intelligent scan selection
4341 * should occur within a generic IEEE 802.11 user space tool. */
4342
4343 /* Set up 'new' AP to this network */
4344 ipw_copy_rates(&match->rates, &rates);
4345 match->network = network;
4346
4347 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' is a viable match.\n",
4348 escape_essid(network->ssid, network->ssid_len),
4349 MAC_ARG(network->bssid));
4350
4351 return 1;
4352}
4353
4354
Jeff Garzikbf794512005-07-31 13:07:26 -04004355static void ipw_adhoc_create(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06004356 struct ieee80211_network *network)
4357{
4358 /*
4359 * For the purposes of scanning, we can set our wireless mode
4360 * to trigger scans across combinations of bands, but when it
4361 * comes to creating a new ad-hoc network, we have tell the FW
4362 * exactly which band to use.
4363 *
Jeff Garzikbf794512005-07-31 13:07:26 -04004364 * We also have the possibility of an invalid channel for the
James Ketrenos43f66a62005-03-25 12:31:53 -06004365 * chossen band. Attempting to create a new ad-hoc network
4366 * with an invalid channel for wireless mode will trigger a
4367 * FW fatal error.
4368 */
4369 network->mode = is_valid_channel(priv->ieee->mode, priv->channel);
4370 if (network->mode) {
4371 network->channel = priv->channel;
4372 } else {
4373 IPW_WARNING("Overriding invalid channel\n");
4374 if (priv->ieee->mode & IEEE_A) {
4375 network->mode = IEEE_A;
4376 priv->channel = band_a_active_channel[0];
4377 } else if (priv->ieee->mode & IEEE_G) {
4378 network->mode = IEEE_G;
4379 priv->channel = band_b_active_channel[0];
4380 } else {
4381 network->mode = IEEE_B;
4382 priv->channel = band_b_active_channel[0];
4383 }
4384 }
4385
4386 network->channel = priv->channel;
4387 priv->config |= CFG_ADHOC_PERSIST;
4388 ipw_create_bssid(priv, network->bssid);
4389 network->ssid_len = priv->essid_len;
4390 memcpy(network->ssid, priv->essid, priv->essid_len);
4391 memset(&network->stats, 0, sizeof(network->stats));
4392 network->capability = WLAN_CAPABILITY_IBSS;
4393 if (priv->capability & CAP_PRIVACY_ON)
4394 network->capability |= WLAN_CAPABILITY_PRIVACY;
4395 network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
Jeff Garzikbf794512005-07-31 13:07:26 -04004396 memcpy(network->rates, priv->rates.supported_rates,
James Ketrenos43f66a62005-03-25 12:31:53 -06004397 network->rates_len);
4398 network->rates_ex_len = priv->rates.num_rates - network->rates_len;
Jeff Garzikbf794512005-07-31 13:07:26 -04004399 memcpy(network->rates_ex,
James Ketrenos43f66a62005-03-25 12:31:53 -06004400 &priv->rates.supported_rates[network->rates_len],
4401 network->rates_ex_len);
4402 network->last_scanned = 0;
4403 network->flags = 0;
4404 network->last_associate = 0;
4405 network->time_stamp[0] = 0;
4406 network->time_stamp[1] = 0;
4407 network->beacon_interval = 100; /* Default */
4408 network->listen_interval = 10; /* Default */
4409 network->atim_window = 0; /* Default */
Jeff Garzikbf794512005-07-31 13:07:26 -04004410#ifdef CONFIG_IEEE80211_WPA
James Ketrenos43f66a62005-03-25 12:31:53 -06004411 network->wpa_ie_len = 0;
4412 network->rsn_ie_len = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04004413#endif /* CONFIG_IEEE80211_WPA */
James Ketrenos43f66a62005-03-25 12:31:53 -06004414}
4415
4416static void ipw_send_wep_keys(struct ipw_priv *priv)
4417{
4418 struct ipw_wep_key *key;
4419 int i;
4420 struct host_cmd cmd = {
4421 .cmd = IPW_CMD_WEP_KEY,
4422 .len = sizeof(*key)
4423 };
4424
4425 key = (struct ipw_wep_key *)&cmd.param;
4426 key->cmd_id = DINO_CMD_WEP_KEY;
4427 key->seq_num = 0;
4428
Jeff Garzikbf794512005-07-31 13:07:26 -04004429 for (i = 0; i < 4; i++) {
James Ketrenos43f66a62005-03-25 12:31:53 -06004430 key->key_index = i;
4431 if (!(priv->sec.flags & (1 << i))) {
4432 key->key_size = 0;
4433 } else {
4434 key->key_size = priv->sec.key_sizes[i];
4435 memcpy(key->key, priv->sec.keys[i], key->key_size);
4436 }
4437
4438 if (ipw_send_cmd(priv, &cmd)) {
4439 IPW_ERROR("failed to send WEP_KEY command\n");
4440 return;
4441 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004442 }
James Ketrenos43f66a62005-03-25 12:31:53 -06004443}
4444
4445static void ipw_adhoc_check(void *data)
4446{
4447 struct ipw_priv *priv = data;
Jeff Garzikbf794512005-07-31 13:07:26 -04004448
James Ketrenos43f66a62005-03-25 12:31:53 -06004449 if (priv->missed_adhoc_beacons++ > priv->missed_beacon_threshold &&
4450 !(priv->config & CFG_ADHOC_PERSIST)) {
4451 IPW_DEBUG_SCAN("Disassociating due to missed beacons\n");
4452 ipw_remove_current_network(priv);
4453 ipw_disassociate(priv);
4454 return;
4455 }
4456
Jeff Garzikbf794512005-07-31 13:07:26 -04004457 queue_delayed_work(priv->workqueue, &priv->adhoc_check,
James Ketrenos43f66a62005-03-25 12:31:53 -06004458 priv->assoc_request.beacon_interval);
4459}
4460
4461#ifdef CONFIG_IPW_DEBUG
4462static void ipw_debug_config(struct ipw_priv *priv)
4463{
4464 IPW_DEBUG_INFO("Scan completed, no valid APs matched "
4465 "[CFG 0x%08X]\n", priv->config);
4466 if (priv->config & CFG_STATIC_CHANNEL)
Jeff Garzikbf794512005-07-31 13:07:26 -04004467 IPW_DEBUG_INFO("Channel locked to %d\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06004468 priv->channel);
4469 else
4470 IPW_DEBUG_INFO("Channel unlocked.\n");
4471 if (priv->config & CFG_STATIC_ESSID)
Jeff Garzikbf794512005-07-31 13:07:26 -04004472 IPW_DEBUG_INFO("ESSID locked to '%s'\n",
4473 escape_essid(priv->essid,
James Ketrenos43f66a62005-03-25 12:31:53 -06004474 priv->essid_len));
4475 else
4476 IPW_DEBUG_INFO("ESSID unlocked.\n");
4477 if (priv->config & CFG_STATIC_BSSID)
4478 IPW_DEBUG_INFO("BSSID locked to %d\n", priv->channel);
4479 else
4480 IPW_DEBUG_INFO("BSSID unlocked.\n");
4481 if (priv->capability & CAP_PRIVACY_ON)
4482 IPW_DEBUG_INFO("PRIVACY on\n");
4483 else
4484 IPW_DEBUG_INFO("PRIVACY off\n");
4485 IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
4486}
4487#else
Jiri Benc8d45ff72005-08-25 20:09:39 -04004488#define ipw_debug_config(x) do {} while (0)
James Ketrenos43f66a62005-03-25 12:31:53 -06004489#endif
4490
4491static inline void ipw_set_fixed_rate(struct ipw_priv *priv,
4492 struct ieee80211_network *network)
4493{
4494 /* TODO: Verify that this works... */
4495 struct ipw_fixed_rate fr = {
4496 .tx_rates = priv->rates_mask
4497 };
4498 u32 reg;
4499 u16 mask = 0;
4500
Jeff Garzikbf794512005-07-31 13:07:26 -04004501 /* Identify 'current FW band' and match it with the fixed
James Ketrenos43f66a62005-03-25 12:31:53 -06004502 * Tx rates */
Jeff Garzikbf794512005-07-31 13:07:26 -04004503
James Ketrenos43f66a62005-03-25 12:31:53 -06004504 switch (priv->ieee->freq_band) {
4505 case IEEE80211_52GHZ_BAND: /* A only */
4506 /* IEEE_A */
4507 if (priv->rates_mask & ~IEEE80211_OFDM_RATES_MASK) {
4508 /* Invalid fixed rate mask */
4509 fr.tx_rates = 0;
4510 break;
4511 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004512
James Ketrenos43f66a62005-03-25 12:31:53 -06004513 fr.tx_rates >>= IEEE80211_OFDM_SHIFT_MASK_A;
4514 break;
4515
4516 default: /* 2.4Ghz or Mixed */
4517 /* IEEE_B */
4518 if (network->mode == IEEE_B) {
4519 if (fr.tx_rates & ~IEEE80211_CCK_RATES_MASK) {
4520 /* Invalid fixed rate mask */
4521 fr.tx_rates = 0;
4522 }
4523 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04004524 }
James Ketrenos43f66a62005-03-25 12:31:53 -06004525
4526 /* IEEE_G */
4527 if (fr.tx_rates & ~(IEEE80211_CCK_RATES_MASK |
4528 IEEE80211_OFDM_RATES_MASK)) {
4529 /* Invalid fixed rate mask */
4530 fr.tx_rates = 0;
4531 break;
4532 }
4533
4534 if (IEEE80211_OFDM_RATE_6MB_MASK & fr.tx_rates) {
4535 mask |= (IEEE80211_OFDM_RATE_6MB_MASK >> 1);
4536 fr.tx_rates &= ~IEEE80211_OFDM_RATE_6MB_MASK;
4537 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004538
James Ketrenos43f66a62005-03-25 12:31:53 -06004539 if (IEEE80211_OFDM_RATE_9MB_MASK & fr.tx_rates) {
4540 mask |= (IEEE80211_OFDM_RATE_9MB_MASK >> 1);
4541 fr.tx_rates &= ~IEEE80211_OFDM_RATE_9MB_MASK;
4542 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004543
James Ketrenos43f66a62005-03-25 12:31:53 -06004544 if (IEEE80211_OFDM_RATE_12MB_MASK & fr.tx_rates) {
4545 mask |= (IEEE80211_OFDM_RATE_12MB_MASK >> 1);
4546 fr.tx_rates &= ~IEEE80211_OFDM_RATE_12MB_MASK;
4547 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004548
James Ketrenos43f66a62005-03-25 12:31:53 -06004549 fr.tx_rates |= mask;
4550 break;
4551 }
4552
4553 reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
4554 ipw_write_reg32(priv, reg, *(u32*)&fr);
4555}
4556
4557static int ipw_associate_network(struct ipw_priv *priv,
4558 struct ieee80211_network *network,
4559 struct ipw_supported_rates *rates,
4560 int roaming)
4561{
4562 int err;
4563
4564 if (priv->config & CFG_FIXED_RATE)
4565 ipw_set_fixed_rate(priv, network);
4566
4567 if (!(priv->config & CFG_STATIC_ESSID)) {
Jeff Garzikbf794512005-07-31 13:07:26 -04004568 priv->essid_len = min(network->ssid_len,
James Ketrenos43f66a62005-03-25 12:31:53 -06004569 (u8)IW_ESSID_MAX_SIZE);
4570 memcpy(priv->essid, network->ssid, priv->essid_len);
4571 }
4572
4573 network->last_associate = jiffies;
4574
4575 memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
4576 priv->assoc_request.channel = network->channel;
4577 if ((priv->capability & CAP_PRIVACY_ON) &&
4578 (priv->capability & CAP_SHARED_KEY)) {
4579 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
4580 priv->assoc_request.auth_key = priv->sec.active_key;
4581 } else {
4582 priv->assoc_request.auth_type = AUTH_OPEN;
4583 priv->assoc_request.auth_key = 0;
4584 }
4585
Jeff Garzikbf794512005-07-31 13:07:26 -04004586 if (priv->capability & CAP_PRIVACY_ON)
James Ketrenos43f66a62005-03-25 12:31:53 -06004587 ipw_send_wep_keys(priv);
4588
Jeff Garzikbf794512005-07-31 13:07:26 -04004589 /*
4590 * It is valid for our ieee device to support multiple modes, but
4591 * when it comes to associating to a given network we have to choose
James Ketrenos43f66a62005-03-25 12:31:53 -06004592 * just one mode.
4593 */
4594 if (network->mode & priv->ieee->mode & IEEE_A)
4595 priv->assoc_request.ieee_mode = IPW_A_MODE;
4596 else if (network->mode & priv->ieee->mode & IEEE_G)
4597 priv->assoc_request.ieee_mode = IPW_G_MODE;
4598 else if (network->mode & priv->ieee->mode & IEEE_B)
4599 priv->assoc_request.ieee_mode = IPW_B_MODE;
4600
4601 IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, "
4602 "802.11%c [%d], enc=%s%s%s%c%c\n",
4603 roaming ? "Rea" : "A",
Jeff Garzikbf794512005-07-31 13:07:26 -04004604 escape_essid(priv->essid, priv->essid_len),
4605 network->channel,
4606 ipw_modes[priv->assoc_request.ieee_mode],
4607 rates->num_rates,
James Ketrenos43f66a62005-03-25 12:31:53 -06004608 priv->capability & CAP_PRIVACY_ON ? "on " : "off",
Jeff Garzikbf794512005-07-31 13:07:26 -04004609 priv->capability & CAP_PRIVACY_ON ?
4610 (priv->capability & CAP_SHARED_KEY ? "(shared)" :
James Ketrenos43f66a62005-03-25 12:31:53 -06004611 "(open)") : "",
4612 priv->capability & CAP_PRIVACY_ON ? " key=" : "",
Jeff Garzikbf794512005-07-31 13:07:26 -04004613 priv->capability & CAP_PRIVACY_ON ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004614 '1' + priv->sec.active_key : '.',
Jeff Garzikbf794512005-07-31 13:07:26 -04004615 priv->capability & CAP_PRIVACY_ON ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004616 '.' : ' ');
4617
4618 priv->assoc_request.beacon_interval = network->beacon_interval;
4619 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
4620 (network->time_stamp[0] == 0) &&
4621 (network->time_stamp[1] == 0)) {
4622 priv->assoc_request.assoc_type = HC_IBSS_START;
4623 priv->assoc_request.assoc_tsf_msw = 0;
4624 priv->assoc_request.assoc_tsf_lsw = 0;
4625 } else {
4626 if (unlikely(roaming))
4627 priv->assoc_request.assoc_type = HC_REASSOCIATE;
4628 else
4629 priv->assoc_request.assoc_type = HC_ASSOCIATE;
4630 priv->assoc_request.assoc_tsf_msw = network->time_stamp[1];
4631 priv->assoc_request.assoc_tsf_lsw = network->time_stamp[0];
4632 }
4633
4634 memcpy(&priv->assoc_request.bssid, network->bssid, ETH_ALEN);
4635
4636 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
4637 memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN);
4638 priv->assoc_request.atim_window = network->atim_window;
4639 } else {
Jeff Garzikbf794512005-07-31 13:07:26 -04004640 memcpy(&priv->assoc_request.dest, network->bssid,
James Ketrenos43f66a62005-03-25 12:31:53 -06004641 ETH_ALEN);
4642 priv->assoc_request.atim_window = 0;
4643 }
4644
4645 priv->assoc_request.capability = network->capability;
4646 priv->assoc_request.listen_interval = network->listen_interval;
Jeff Garzikbf794512005-07-31 13:07:26 -04004647
James Ketrenos43f66a62005-03-25 12:31:53 -06004648 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
4649 if (err) {
4650 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
4651 return err;
4652 }
4653
4654 rates->ieee_mode = priv->assoc_request.ieee_mode;
4655 rates->purpose = IPW_RATE_CONNECT;
4656 ipw_send_supported_rates(priv, rates);
Jeff Garzikbf794512005-07-31 13:07:26 -04004657
James Ketrenos43f66a62005-03-25 12:31:53 -06004658 if (priv->assoc_request.ieee_mode == IPW_G_MODE)
4659 priv->sys_config.dot11g_auto_detection = 1;
4660 else
4661 priv->sys_config.dot11g_auto_detection = 0;
4662 err = ipw_send_system_config(priv, &priv->sys_config);
4663 if (err) {
4664 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
4665 return err;
4666 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004667
James Ketrenos43f66a62005-03-25 12:31:53 -06004668 IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
4669 err = ipw_set_sensitivity(priv, network->stats.rssi);
4670 if (err) {
4671 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
4672 return err;
4673 }
4674
4675 /*
4676 * If preemption is enabled, it is possible for the association
4677 * to complete before we return from ipw_send_associate. Therefore
4678 * we have to be sure and update our priviate data first.
4679 */
4680 priv->channel = network->channel;
4681 memcpy(priv->bssid, network->bssid, ETH_ALEN);
Jeff Garzikbf794512005-07-31 13:07:26 -04004682 priv->status |= STATUS_ASSOCIATING;
James Ketrenos43f66a62005-03-25 12:31:53 -06004683 priv->status &= ~STATUS_SECURITY_UPDATED;
4684
4685 priv->assoc_network = network;
4686
4687 err = ipw_send_associate(priv, &priv->assoc_request);
4688 if (err) {
4689 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
4690 return err;
4691 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004692
4693 IPW_DEBUG(IPW_DL_STATE, "associating: '%s' " MAC_FMT " \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06004694 escape_essid(priv->essid, priv->essid_len),
4695 MAC_ARG(priv->bssid));
4696
4697 return 0;
4698}
4699
4700static void ipw_roam(void *data)
4701{
4702 struct ipw_priv *priv = data;
4703 struct ieee80211_network *network = NULL;
4704 struct ipw_network_match match = {
4705 .network = priv->assoc_network
4706 };
4707
4708 /* The roaming process is as follows:
Jeff Garzikbf794512005-07-31 13:07:26 -04004709 *
4710 * 1. Missed beacon threshold triggers the roaming process by
James Ketrenos43f66a62005-03-25 12:31:53 -06004711 * setting the status ROAM bit and requesting a scan.
4712 * 2. When the scan completes, it schedules the ROAM work
4713 * 3. The ROAM work looks at all of the known networks for one that
4714 * is a better network than the currently associated. If none
4715 * found, the ROAM process is over (ROAM bit cleared)
4716 * 4. If a better network is found, a disassociation request is
4717 * sent.
4718 * 5. When the disassociation completes, the roam work is again
4719 * scheduled. The second time through, the driver is no longer
4720 * associated, and the newly selected network is sent an
Jeff Garzikbf794512005-07-31 13:07:26 -04004721 * association request.
James Ketrenos43f66a62005-03-25 12:31:53 -06004722 * 6. At this point ,the roaming process is complete and the ROAM
4723 * status bit is cleared.
4724 */
4725
4726 /* If we are no longer associated, and the roaming bit is no longer
4727 * set, then we are not actively roaming, so just return */
4728 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
4729 return;
Jeff Garzikbf794512005-07-31 13:07:26 -04004730
James Ketrenos43f66a62005-03-25 12:31:53 -06004731 if (priv->status & STATUS_ASSOCIATED) {
Jeff Garzikbf794512005-07-31 13:07:26 -04004732 /* First pass through ROAM process -- look for a better
James Ketrenos43f66a62005-03-25 12:31:53 -06004733 * network */
4734 u8 rssi = priv->assoc_network->stats.rssi;
4735 priv->assoc_network->stats.rssi = -128;
4736 list_for_each_entry(network, &priv->ieee->network_list, list) {
4737 if (network != priv->assoc_network)
4738 ipw_best_network(priv, &match, network, 1);
4739 }
4740 priv->assoc_network->stats.rssi = rssi;
Jeff Garzikbf794512005-07-31 13:07:26 -04004741
James Ketrenos43f66a62005-03-25 12:31:53 -06004742 if (match.network == priv->assoc_network) {
4743 IPW_DEBUG_ASSOC("No better APs in this network to "
4744 "roam to.\n");
4745 priv->status &= ~STATUS_ROAMING;
4746 ipw_debug_config(priv);
4747 return;
4748 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004749
James Ketrenos43f66a62005-03-25 12:31:53 -06004750 ipw_send_disassociate(priv, 1);
4751 priv->assoc_network = match.network;
4752
4753 return;
Jeff Garzikbf794512005-07-31 13:07:26 -04004754 }
James Ketrenos43f66a62005-03-25 12:31:53 -06004755
4756 /* Second pass through ROAM process -- request association */
4757 ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
4758 ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
4759 priv->status &= ~STATUS_ROAMING;
4760}
4761
4762static void ipw_associate(void *data)
4763{
4764 struct ipw_priv *priv = data;
4765
4766 struct ieee80211_network *network = NULL;
4767 struct ipw_network_match match = {
4768 .network = NULL
4769 };
4770 struct ipw_supported_rates *rates;
4771 struct list_head *element;
4772
4773 if (!(priv->config & CFG_ASSOCIATE) &&
4774 !(priv->config & (CFG_STATIC_ESSID |
4775 CFG_STATIC_CHANNEL |
4776 CFG_STATIC_BSSID))) {
4777 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
4778 return;
4779 }
4780
Jeff Garzikbf794512005-07-31 13:07:26 -04004781 list_for_each_entry(network, &priv->ieee->network_list, list)
James Ketrenos43f66a62005-03-25 12:31:53 -06004782 ipw_best_network(priv, &match, network, 0);
4783
4784 network = match.network;
4785 rates = &match.rates;
4786
4787 if (network == NULL &&
4788 priv->ieee->iw_mode == IW_MODE_ADHOC &&
4789 priv->config & CFG_ADHOC_CREATE &&
4790 priv->config & CFG_STATIC_ESSID &&
4791 !list_empty(&priv->ieee->network_free_list)) {
4792 element = priv->ieee->network_free_list.next;
Jeff Garzikbf794512005-07-31 13:07:26 -04004793 network = list_entry(element, struct ieee80211_network,
James Ketrenos43f66a62005-03-25 12:31:53 -06004794 list);
4795 ipw_adhoc_create(priv, network);
4796 rates = &priv->rates;
4797 list_del(element);
4798 list_add_tail(&network->list, &priv->ieee->network_list);
4799 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004800
James Ketrenos43f66a62005-03-25 12:31:53 -06004801 /* If we reached the end of the list, then we don't have any valid
4802 * matching APs */
4803 if (!network) {
4804 ipw_debug_config(priv);
4805
Jeff Garzikbf794512005-07-31 13:07:26 -04004806 queue_delayed_work(priv->workqueue, &priv->request_scan,
James Ketrenos43f66a62005-03-25 12:31:53 -06004807 SCAN_INTERVAL);
Jeff Garzikbf794512005-07-31 13:07:26 -04004808
James Ketrenos43f66a62005-03-25 12:31:53 -06004809 return;
4810 }
4811
4812 ipw_associate_network(priv, network, rates, 0);
4813}
Jeff Garzikbf794512005-07-31 13:07:26 -04004814
4815static inline void ipw_handle_data_packet(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06004816 struct ipw_rx_mem_buffer *rxb,
4817 struct ieee80211_rx_stats *stats)
4818{
4819 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
4820
4821 /* We received data from the HW, so stop the watchdog */
4822 priv->net_dev->trans_start = jiffies;
4823
Jeff Garzikbf794512005-07-31 13:07:26 -04004824 /* We only process data packets if the
James Ketrenos43f66a62005-03-25 12:31:53 -06004825 * interface is open */
Jeff Garzikbf794512005-07-31 13:07:26 -04004826 if (unlikely((pkt->u.frame.length + IPW_RX_FRAME_SIZE) >
James Ketrenos43f66a62005-03-25 12:31:53 -06004827 skb_tailroom(rxb->skb))) {
4828 priv->ieee->stats.rx_errors++;
4829 priv->wstats.discard.misc++;
4830 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
4831 return;
4832 } else if (unlikely(!netif_running(priv->net_dev))) {
4833 priv->ieee->stats.rx_dropped++;
4834 priv->wstats.discard.misc++;
4835 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
4836 return;
4837 }
4838
4839 /* Advance skb->data to the start of the actual payload */
Jiri Bencaaa4d302005-06-07 14:58:41 +02004840 skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
James Ketrenos43f66a62005-03-25 12:31:53 -06004841
4842 /* Set the size of the skb to the size of the frame */
4843 skb_put(rxb->skb, pkt->u.frame.length);
4844
4845 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
4846
Jeff Garzikbf794512005-07-31 13:07:26 -04004847 if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
James Ketrenos43f66a62005-03-25 12:31:53 -06004848 priv->ieee->stats.rx_errors++;
4849 else /* ieee80211_rx succeeded, so it now owns the SKB */
4850 rxb->skb = NULL;
4851}
4852
4853
4854/*
4855 * Main entry function for recieving a packet with 80211 headers. This
4856 * should be called when ever the FW has notified us that there is a new
4857 * skb in the recieve queue.
4858 */
4859static void ipw_rx(struct ipw_priv *priv)
4860{
4861 struct ipw_rx_mem_buffer *rxb;
4862 struct ipw_rx_packet *pkt;
4863 struct ieee80211_hdr *header;
4864 u32 r, w, i;
4865 u8 network_packet;
4866
4867 r = ipw_read32(priv, CX2_RX_READ_INDEX);
4868 w = ipw_read32(priv, CX2_RX_WRITE_INDEX);
4869 i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE;
4870
4871 while (i != r) {
4872 rxb = priv->rxq->queue[i];
4873#ifdef CONFIG_IPW_DEBUG
4874 if (unlikely(rxb == NULL)) {
4875 printk(KERN_CRIT "Queue not allocated!\n");
4876 break;
4877 }
4878#endif
4879 priv->rxq->queue[i] = NULL;
4880
4881 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
Jeff Garzikbf794512005-07-31 13:07:26 -04004882 CX2_RX_BUF_SIZE,
James Ketrenos43f66a62005-03-25 12:31:53 -06004883 PCI_DMA_FROMDEVICE);
4884
4885 pkt = (struct ipw_rx_packet *)rxb->skb->data;
4886 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
4887 pkt->header.message_type,
4888 pkt->header.rx_seq_num,
4889 pkt->header.control_bits);
4890
4891 switch (pkt->header.message_type) {
4892 case RX_FRAME_TYPE: /* 802.11 frame */ {
4893 struct ieee80211_rx_stats stats = {
Jeff Garzikbf794512005-07-31 13:07:26 -04004894 .rssi = pkt->u.frame.rssi_dbm -
James Ketrenos43f66a62005-03-25 12:31:53 -06004895 IPW_RSSI_TO_DBM,
4896 .signal = pkt->u.frame.signal,
4897 .rate = pkt->u.frame.rate,
4898 .mac_time = jiffies,
Jeff Garzikbf794512005-07-31 13:07:26 -04004899 .received_channel =
James Ketrenos43f66a62005-03-25 12:31:53 -06004900 pkt->u.frame.received_channel,
Jeff Garzikbf794512005-07-31 13:07:26 -04004901 .freq = (pkt->u.frame.control & (1<<0)) ?
James Ketrenos43f66a62005-03-25 12:31:53 -06004902 IEEE80211_24GHZ_BAND : IEEE80211_52GHZ_BAND,
4903 .len = pkt->u.frame.length,
4904 };
4905
4906 if (stats.rssi != 0)
4907 stats.mask |= IEEE80211_STATMASK_RSSI;
4908 if (stats.signal != 0)
4909 stats.mask |= IEEE80211_STATMASK_SIGNAL;
4910 if (stats.rate != 0)
4911 stats.mask |= IEEE80211_STATMASK_RATE;
4912
4913 priv->rx_packets++;
4914
4915#ifdef CONFIG_IPW_PROMISC
4916 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4917 ipw_handle_data_packet(priv, rxb, &stats);
4918 break;
4919 }
4920#endif
Jeff Garzikbf794512005-07-31 13:07:26 -04004921
4922 header = (struct ieee80211_hdr *)(rxb->skb->data +
James Ketrenos43f66a62005-03-25 12:31:53 -06004923 IPW_RX_FRAME_SIZE);
4924 /* TODO: Check Ad-Hoc dest/source and make sure
4925 * that we are actually parsing these packets
Jeff Garzikbf794512005-07-31 13:07:26 -04004926 * correctly -- we should probably use the
James Ketrenos43f66a62005-03-25 12:31:53 -06004927 * frame control of the packet and disregard
4928 * the current iw_mode */
4929 switch (priv->ieee->iw_mode) {
4930 case IW_MODE_ADHOC:
Jeff Garzikbf794512005-07-31 13:07:26 -04004931 network_packet =
4932 !memcmp(header->addr1,
4933 priv->net_dev->dev_addr,
James Ketrenos43f66a62005-03-25 12:31:53 -06004934 ETH_ALEN) ||
Jeff Garzikbf794512005-07-31 13:07:26 -04004935 !memcmp(header->addr3,
James Ketrenos43f66a62005-03-25 12:31:53 -06004936 priv->bssid, ETH_ALEN) ||
4937 is_broadcast_ether_addr(header->addr1) ||
4938 is_multicast_ether_addr(header->addr1);
4939 break;
4940
4941 case IW_MODE_INFRA:
4942 default:
Jeff Garzikbf794512005-07-31 13:07:26 -04004943 network_packet =
4944 !memcmp(header->addr3,
James Ketrenos43f66a62005-03-25 12:31:53 -06004945 priv->bssid, ETH_ALEN) ||
Jeff Garzikbf794512005-07-31 13:07:26 -04004946 !memcmp(header->addr1,
4947 priv->net_dev->dev_addr,
James Ketrenos43f66a62005-03-25 12:31:53 -06004948 ETH_ALEN) ||
4949 is_broadcast_ether_addr(header->addr1) ||
4950 is_multicast_ether_addr(header->addr1);
4951 break;
4952 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004953
James Ketrenos43f66a62005-03-25 12:31:53 -06004954 if (network_packet && priv->assoc_network) {
4955 priv->assoc_network->stats.rssi = stats.rssi;
Jeff Garzikbf794512005-07-31 13:07:26 -04004956 average_add(&priv->average_rssi,
James Ketrenos43f66a62005-03-25 12:31:53 -06004957 stats.rssi);
4958 priv->last_rx_rssi = stats.rssi;
4959 }
4960
4961 IPW_DEBUG_RX("Frame: len=%u\n", pkt->u.frame.length);
4962
4963 if (pkt->u.frame.length < frame_hdr_len(header)) {
4964 IPW_DEBUG_DROP("Received packet is too small. "
4965 "Dropping.\n");
4966 priv->ieee->stats.rx_errors++;
4967 priv->wstats.discard.misc++;
4968 break;
4969 }
Jeff Garzikbf794512005-07-31 13:07:26 -04004970
James Ketrenos43f66a62005-03-25 12:31:53 -06004971 switch (WLAN_FC_GET_TYPE(header->frame_ctl)) {
4972 case IEEE80211_FTYPE_MGMT:
4973 ieee80211_rx_mgt(priv->ieee, header, &stats);
4974 if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
4975 ((WLAN_FC_GET_STYPE(header->frame_ctl) ==
4976 IEEE80211_STYPE_PROBE_RESP) ||
4977 (WLAN_FC_GET_STYPE(header->frame_ctl) ==
4978 IEEE80211_STYPE_BEACON)) &&
4979 !memcmp(header->addr3, priv->bssid, ETH_ALEN))
4980 ipw_add_station(priv, header->addr2);
4981 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04004982
James Ketrenos43f66a62005-03-25 12:31:53 -06004983 case IEEE80211_FTYPE_CTL:
4984 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04004985
James Ketrenos43f66a62005-03-25 12:31:53 -06004986 case IEEE80211_FTYPE_DATA:
4987 if (network_packet)
4988 ipw_handle_data_packet(priv, rxb, &stats);
4989 else
Jeff Garzikbf794512005-07-31 13:07:26 -04004990 IPW_DEBUG_DROP("Dropping: " MAC_FMT
James Ketrenos43f66a62005-03-25 12:31:53 -06004991 ", " MAC_FMT ", " MAC_FMT "\n",
Jeff Garzikbf794512005-07-31 13:07:26 -04004992 MAC_ARG(header->addr1), MAC_ARG(header->addr2),
James Ketrenos43f66a62005-03-25 12:31:53 -06004993 MAC_ARG(header->addr3));
4994 break;
4995 }
4996 break;
4997 }
4998
4999 case RX_HOST_NOTIFICATION_TYPE: {
5000 IPW_DEBUG_RX("Notification: subtype=%02X flags=%02X size=%d\n",
5001 pkt->u.notification.subtype,
5002 pkt->u.notification.flags,
5003 pkt->u.notification.size);
5004 ipw_rx_notification(priv, &pkt->u.notification);
5005 break;
5006 }
5007
5008 default:
5009 IPW_DEBUG_RX("Bad Rx packet of type %d\n",
5010 pkt->header.message_type);
5011 break;
5012 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005013
5014 /* For now we just don't re-use anything. We can tweak this
5015 * later to try and re-use notification packets and SKBs that
James Ketrenos43f66a62005-03-25 12:31:53 -06005016 * fail to Rx correctly */
5017 if (rxb->skb != NULL) {
5018 dev_kfree_skb_any(rxb->skb);
5019 rxb->skb = NULL;
5020 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005021
James Ketrenos43f66a62005-03-25 12:31:53 -06005022 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
5023 CX2_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5024 list_add_tail(&rxb->list, &priv->rxq->rx_used);
Jeff Garzikbf794512005-07-31 13:07:26 -04005025
James Ketrenos43f66a62005-03-25 12:31:53 -06005026 i = (i + 1) % RX_QUEUE_SIZE;
5027 }
5028
5029 /* Backtrack one entry */
5030 priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1;
5031
5032 ipw_rx_queue_restock(priv);
5033}
5034
5035static void ipw_abort_scan(struct ipw_priv *priv)
5036{
5037 int err;
5038
5039 if (priv->status & STATUS_SCAN_ABORTING) {
5040 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
5041 return;
5042 }
5043 priv->status |= STATUS_SCAN_ABORTING;
5044
5045 err = ipw_send_scan_abort(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04005046 if (err)
James Ketrenos43f66a62005-03-25 12:31:53 -06005047 IPW_DEBUG_HC("Request to abort scan failed.\n");
5048}
5049
5050static int ipw_request_scan(struct ipw_priv *priv)
5051{
5052 struct ipw_scan_request_ext scan;
5053 int channel_index = 0;
5054 int i, err, scan_type;
Jeff Garzikbf794512005-07-31 13:07:26 -04005055
James Ketrenos43f66a62005-03-25 12:31:53 -06005056 if (priv->status & STATUS_EXIT_PENDING) {
5057 IPW_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5058 priv->status |= STATUS_SCAN_PENDING;
5059 return 0;
5060 }
5061
5062 if (priv->status & STATUS_SCANNING) {
5063 IPW_DEBUG_HC("Concurrent scan requested. Aborting first.\n");
5064 priv->status |= STATUS_SCAN_PENDING;
5065 ipw_abort_scan(priv);
5066 return 0;
5067 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005068
James Ketrenos43f66a62005-03-25 12:31:53 -06005069 if (priv->status & STATUS_SCAN_ABORTING) {
5070 IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5071 priv->status |= STATUS_SCAN_PENDING;
5072 return 0;
5073 }
5074
5075 if (priv->status & STATUS_RF_KILL_MASK) {
5076 IPW_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5077 priv->status |= STATUS_SCAN_PENDING;
5078 return 0;
5079 }
5080
5081 memset(&scan, 0, sizeof(scan));
5082
5083 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = 20;
5084 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = 20;
5085 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = 20;
5086
5087 scan.full_scan_index = ieee80211_get_scans(priv->ieee);
5088 /* If we are roaming, then make this a directed scan for the current
Jeff Garzikbf794512005-07-31 13:07:26 -04005089 * network. Otherwise, ensure that every other scan is a fast
James Ketrenos43f66a62005-03-25 12:31:53 -06005090 * channel hop scan */
5091 if ((priv->status & STATUS_ROAMING) || (
Jeff Garzikbf794512005-07-31 13:07:26 -04005092 !(priv->status & STATUS_ASSOCIATED) &&
5093 (priv->config & CFG_STATIC_ESSID) &&
James Ketrenos43f66a62005-03-25 12:31:53 -06005094 (scan.full_scan_index % 2))) {
5095 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
5096 if (err) {
5097 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
5098 return err;
5099 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005100
James Ketrenos43f66a62005-03-25 12:31:53 -06005101 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
5102 } else {
5103 scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
5104 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005105
James Ketrenos43f66a62005-03-25 12:31:53 -06005106 if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) {
5107 int start = channel_index;
5108 for (i = 0; i < MAX_A_CHANNELS; i++) {
5109 if (band_a_active_channel[i] == 0)
5110 break;
5111 if ((priv->status & STATUS_ASSOCIATED) &&
5112 band_a_active_channel[i] == priv->channel)
5113 continue;
5114 channel_index++;
Jeff Garzikbf794512005-07-31 13:07:26 -04005115 scan.channels_list[channel_index] =
James Ketrenos43f66a62005-03-25 12:31:53 -06005116 band_a_active_channel[i];
5117 ipw_set_scan_type(&scan, channel_index, scan_type);
5118 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005119
James Ketrenos43f66a62005-03-25 12:31:53 -06005120 if (start != channel_index) {
Jeff Garzikbf794512005-07-31 13:07:26 -04005121 scan.channels_list[start] = (u8)(IPW_A_MODE << 6) |
James Ketrenos43f66a62005-03-25 12:31:53 -06005122 (channel_index - start);
5123 channel_index++;
5124 }
5125 }
5126
5127 if (priv->ieee->freq_band & IEEE80211_24GHZ_BAND) {
5128 int start = channel_index;
5129 for (i = 0; i < MAX_B_CHANNELS; i++) {
5130 if (band_b_active_channel[i] == 0)
5131 break;
5132 if ((priv->status & STATUS_ASSOCIATED) &&
5133 band_b_active_channel[i] == priv->channel)
5134 continue;
5135 channel_index++;
Jeff Garzikbf794512005-07-31 13:07:26 -04005136 scan.channels_list[channel_index] =
James Ketrenos43f66a62005-03-25 12:31:53 -06005137 band_b_active_channel[i];
5138 ipw_set_scan_type(&scan, channel_index, scan_type);
5139 }
5140
5141 if (start != channel_index) {
Jeff Garzikbf794512005-07-31 13:07:26 -04005142 scan.channels_list[start] = (u8)(IPW_B_MODE << 6) |
James Ketrenos43f66a62005-03-25 12:31:53 -06005143 (channel_index - start);
5144 }
5145 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005146
James Ketrenos43f66a62005-03-25 12:31:53 -06005147 err = ipw_send_scan_request_ext(priv, &scan);
5148 if (err) {
5149 IPW_DEBUG_HC("Sending scan command failed: %08X\n",
5150 err);
5151 return -EIO;
5152 }
5153
5154 priv->status |= STATUS_SCANNING;
5155 priv->status &= ~STATUS_SCAN_PENDING;
5156
5157 return 0;
5158}
5159
5160/*
5161 * This file defines the Wireless Extension handlers. It does not
5162 * define any methods of hardware manipulation and relies on the
5163 * functions defined in ipw_main to provide the HW interaction.
Jeff Garzikbf794512005-07-31 13:07:26 -04005164 *
5165 * The exception to this is the use of the ipw_get_ordinal()
James Ketrenos43f66a62005-03-25 12:31:53 -06005166 * function used to poll the hardware vs. making unecessary calls.
5167 *
5168 */
5169
Jeff Garzikbf794512005-07-31 13:07:26 -04005170static int ipw_wx_get_name(struct net_device *dev,
5171 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005172 union iwreq_data *wrqu, char *extra)
5173{
5174 struct ipw_priv *priv = ieee80211_priv(dev);
5175 if (!(priv->status & STATUS_ASSOCIATED))
5176 strcpy(wrqu->name, "unassociated");
Jeff Garzikbf794512005-07-31 13:07:26 -04005177 else
James Ketrenos43f66a62005-03-25 12:31:53 -06005178 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11%c",
5179 ipw_modes[priv->assoc_request.ieee_mode]);
5180 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
5181 return 0;
5182}
5183
5184static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
5185{
5186 if (channel == 0) {
5187 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
5188 priv->config &= ~CFG_STATIC_CHANNEL;
5189 if (!(priv->status & (STATUS_SCANNING | STATUS_ASSOCIATED |
5190 STATUS_ASSOCIATING))) {
5191 IPW_DEBUG_ASSOC("Attempting to associate with new "
5192 "parameters.\n");
5193 ipw_associate(priv);
5194 }
5195
5196 return 0;
5197 }
5198
5199 priv->config |= CFG_STATIC_CHANNEL;
5200
5201 if (priv->channel == channel) {
5202 IPW_DEBUG_INFO(
5203 "Request to set channel to current value (%d)\n",
5204 channel);
5205 return 0;
5206 }
5207
5208 IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
5209 priv->channel = channel;
5210
5211 /* If we are currently associated, or trying to associate
5212 * then see if this is a new channel (causing us to disassociate) */
5213 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
5214 IPW_DEBUG_ASSOC("Disassociating due to channel change.\n");
5215 ipw_disassociate(priv);
5216 } else {
5217 ipw_associate(priv);
5218 }
5219
5220 return 0;
5221}
5222
Jeff Garzikbf794512005-07-31 13:07:26 -04005223static int ipw_wx_set_freq(struct net_device *dev,
5224 struct iw_request_info *info,
5225 union iwreq_data *wrqu, char *extra)
James Ketrenos43f66a62005-03-25 12:31:53 -06005226{
5227 struct ipw_priv *priv = ieee80211_priv(dev);
5228 struct iw_freq *fwrq = &wrqu->freq;
Jeff Garzikbf794512005-07-31 13:07:26 -04005229
James Ketrenos43f66a62005-03-25 12:31:53 -06005230 /* if setting by freq convert to channel */
5231 if (fwrq->e == 1) {
5232 if ((fwrq->m >= (int) 2.412e8 &&
5233 fwrq->m <= (int) 2.487e8)) {
5234 int f = fwrq->m / 100000;
5235 int c = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04005236
James Ketrenos43f66a62005-03-25 12:31:53 -06005237 while ((c < REG_MAX_CHANNEL) &&
5238 (f != ipw_frequencies[c]))
5239 c++;
Jeff Garzikbf794512005-07-31 13:07:26 -04005240
James Ketrenos43f66a62005-03-25 12:31:53 -06005241 /* hack to fall through */
5242 fwrq->e = 0;
5243 fwrq->m = c + 1;
5244 }
5245 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005246
5247 if (fwrq->e > 0 || fwrq->m > 1000)
James Ketrenos43f66a62005-03-25 12:31:53 -06005248 return -EOPNOTSUPP;
5249
5250 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
5251 return ipw_set_channel(priv, (u8)fwrq->m);
Jeff Garzikbf794512005-07-31 13:07:26 -04005252
James Ketrenos43f66a62005-03-25 12:31:53 -06005253 return 0;
5254}
5255
5256
Jeff Garzikbf794512005-07-31 13:07:26 -04005257static int ipw_wx_get_freq(struct net_device *dev,
5258 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005259 union iwreq_data *wrqu, char *extra)
5260{
5261 struct ipw_priv *priv = ieee80211_priv(dev);
5262
5263 wrqu->freq.e = 0;
5264
5265 /* If we are associated, trying to associate, or have a statically
5266 * configured CHANNEL then return that; otherwise return ANY */
5267 if (priv->config & CFG_STATIC_CHANNEL ||
5268 priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))
5269 wrqu->freq.m = priv->channel;
Jeff Garzikbf794512005-07-31 13:07:26 -04005270 else
James Ketrenos43f66a62005-03-25 12:31:53 -06005271 wrqu->freq.m = 0;
5272
5273 IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
5274 return 0;
5275}
5276
Jeff Garzikbf794512005-07-31 13:07:26 -04005277static int ipw_wx_set_mode(struct net_device *dev,
5278 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005279 union iwreq_data *wrqu, char *extra)
5280{
5281 struct ipw_priv *priv = ieee80211_priv(dev);
5282 int err = 0;
5283
5284 IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
5285
5286 if (wrqu->mode == priv->ieee->iw_mode)
5287 return 0;
5288
5289 switch (wrqu->mode) {
5290#ifdef CONFIG_IPW_PROMISC
5291 case IW_MODE_MONITOR:
5292#endif
5293 case IW_MODE_ADHOC:
5294 case IW_MODE_INFRA:
5295 break;
5296 case IW_MODE_AUTO:
5297 wrqu->mode = IW_MODE_INFRA;
5298 break;
5299 default:
5300 return -EINVAL;
5301 }
5302
5303#ifdef CONFIG_IPW_PROMISC
Jeff Garzikbf794512005-07-31 13:07:26 -04005304 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
James Ketrenos43f66a62005-03-25 12:31:53 -06005305 priv->net_dev->type = ARPHRD_ETHER;
Jeff Garzikbf794512005-07-31 13:07:26 -04005306
5307 if (wrqu->mode == IW_MODE_MONITOR)
James Ketrenos43f66a62005-03-25 12:31:53 -06005308 priv->net_dev->type = ARPHRD_IEEE80211;
5309#endif /* CONFIG_IPW_PROMISC */
Jeff Garzikbf794512005-07-31 13:07:26 -04005310
James Ketrenos43f66a62005-03-25 12:31:53 -06005311#ifdef CONFIG_PM
Jeff Garzikbf794512005-07-31 13:07:26 -04005312 /* Free the existing firmware and reset the fw_loaded
James Ketrenos43f66a62005-03-25 12:31:53 -06005313 * flag so ipw_load() will bring in the new firmawre */
5314 if (fw_loaded) {
5315 fw_loaded = 0;
5316 }
5317
5318 release_firmware(bootfw);
5319 release_firmware(ucode);
5320 release_firmware(firmware);
5321 bootfw = ucode = firmware = NULL;
5322#endif
5323
5324 priv->ieee->iw_mode = wrqu->mode;
5325 ipw_adapter_restart(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04005326
James Ketrenos43f66a62005-03-25 12:31:53 -06005327 return err;
5328}
5329
Jeff Garzikbf794512005-07-31 13:07:26 -04005330static int ipw_wx_get_mode(struct net_device *dev,
5331 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005332 union iwreq_data *wrqu, char *extra)
5333{
5334 struct ipw_priv *priv = ieee80211_priv(dev);
5335
5336 wrqu->mode = priv->ieee->iw_mode;
5337 IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
5338
5339 return 0;
5340}
5341
5342
5343#define DEFAULT_RTS_THRESHOLD 2304U
5344#define MIN_RTS_THRESHOLD 1U
5345#define MAX_RTS_THRESHOLD 2304U
5346#define DEFAULT_BEACON_INTERVAL 100U
5347#define DEFAULT_SHORT_RETRY_LIMIT 7U
5348#define DEFAULT_LONG_RETRY_LIMIT 4U
5349
5350/* Values are in microsecond */
5351static const s32 timeout_duration[] = {
5352 350000,
5353 250000,
5354 75000,
5355 37000,
5356 25000,
5357};
5358
5359static const s32 period_duration[] = {
5360 400000,
5361 700000,
5362 1000000,
5363 1000000,
5364 1000000
5365};
5366
Jeff Garzikbf794512005-07-31 13:07:26 -04005367static int ipw_wx_get_range(struct net_device *dev,
5368 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005369 union iwreq_data *wrqu, char *extra)
5370{
5371 struct ipw_priv *priv = ieee80211_priv(dev);
5372 struct iw_range *range = (struct iw_range *)extra;
5373 u16 val;
5374 int i;
5375
5376 wrqu->data.length = sizeof(*range);
5377 memset(range, 0, sizeof(*range));
5378
5379 /* 54Mbs == ~27 Mb/s real (802.11g) */
Jeff Garzikbf794512005-07-31 13:07:26 -04005380 range->throughput = 27 * 1000 * 1000;
James Ketrenos43f66a62005-03-25 12:31:53 -06005381
5382 range->max_qual.qual = 100;
5383 /* TODO: Find real max RSSI and stick here */
5384 range->max_qual.level = 0;
5385 range->max_qual.noise = 0;
5386 range->max_qual.updated = 7; /* Updated all three */
5387
5388 range->avg_qual.qual = 70;
5389 /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
5390 range->avg_qual.level = 0; /* FIXME to real average level */
5391 range->avg_qual.noise = 0;
5392 range->avg_qual.updated = 7; /* Updated all three */
5393
5394 range->num_bitrates = min(priv->rates.num_rates, (u8)IW_MAX_BITRATES);
5395
Jeff Garzikbf794512005-07-31 13:07:26 -04005396 for (i = 0; i < range->num_bitrates; i++)
5397 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
James Ketrenos43f66a62005-03-25 12:31:53 -06005398 500000;
Jeff Garzikbf794512005-07-31 13:07:26 -04005399
James Ketrenos43f66a62005-03-25 12:31:53 -06005400 range->max_rts = DEFAULT_RTS_THRESHOLD;
5401 range->min_frag = MIN_FRAG_THRESHOLD;
5402 range->max_frag = MAX_FRAG_THRESHOLD;
5403
5404 range->encoding_size[0] = 5;
Jeff Garzikbf794512005-07-31 13:07:26 -04005405 range->encoding_size[1] = 13;
James Ketrenos43f66a62005-03-25 12:31:53 -06005406 range->num_encoding_sizes = 2;
5407 range->max_encoding_tokens = WEP_KEYS;
5408
5409 /* Set the Wireless Extension versions */
5410 range->we_version_compiled = WIRELESS_EXT;
5411 range->we_version_source = 16;
5412
5413 range->num_channels = FREQ_COUNT;
5414
5415 val = 0;
5416 for (i = 0; i < FREQ_COUNT; i++) {
5417 range->freq[val].i = i + 1;
5418 range->freq[val].m = ipw_frequencies[i] * 100000;
5419 range->freq[val].e = 1;
5420 val++;
5421
5422 if (val == IW_MAX_FREQUENCIES)
5423 break;
5424 }
5425 range->num_frequency = val;
5426
5427 IPW_DEBUG_WX("GET Range\n");
5428 return 0;
5429}
5430
Jeff Garzikbf794512005-07-31 13:07:26 -04005431static int ipw_wx_set_wap(struct net_device *dev,
5432 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005433 union iwreq_data *wrqu, char *extra)
5434{
5435 struct ipw_priv *priv = ieee80211_priv(dev);
5436
5437 static const unsigned char any[] = {
5438 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
5439 };
5440 static const unsigned char off[] = {
5441 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
5442 };
5443
Jeff Garzikbf794512005-07-31 13:07:26 -04005444 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
James Ketrenos43f66a62005-03-25 12:31:53 -06005445 return -EINVAL;
5446
5447 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
5448 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
5449 /* we disable mandatory BSSID association */
5450 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
5451 priv->config &= ~CFG_STATIC_BSSID;
5452 if (!(priv->status & (STATUS_SCANNING | STATUS_ASSOCIATED |
5453 STATUS_ASSOCIATING))) {
5454 IPW_DEBUG_ASSOC("Attempting to associate with new "
5455 "parameters.\n");
5456 ipw_associate(priv);
5457 }
5458
5459 return 0;
5460 }
5461
5462 priv->config |= CFG_STATIC_BSSID;
5463 if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) {
5464 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
5465 return 0;
5466 }
5467
5468 IPW_DEBUG_WX("Setting mandatory BSSID to " MAC_FMT "\n",
5469 MAC_ARG(wrqu->ap_addr.sa_data));
5470
5471 memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
5472
5473 /* If we are currently associated, or trying to associate
5474 * then see if this is a new BSSID (causing us to disassociate) */
5475 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
5476 IPW_DEBUG_ASSOC("Disassociating due to BSSID change.\n");
5477 ipw_disassociate(priv);
5478 } else {
5479 ipw_associate(priv);
5480 }
5481
5482 return 0;
5483}
5484
Jeff Garzikbf794512005-07-31 13:07:26 -04005485static int ipw_wx_get_wap(struct net_device *dev,
5486 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005487 union iwreq_data *wrqu, char *extra)
5488{
5489 struct ipw_priv *priv = ieee80211_priv(dev);
5490 /* If we are associated, trying to associate, or have a statically
5491 * configured BSSID then return that; otherwise return ANY */
Jeff Garzikbf794512005-07-31 13:07:26 -04005492 if (priv->config & CFG_STATIC_BSSID ||
James Ketrenos43f66a62005-03-25 12:31:53 -06005493 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
5494 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
5495 memcpy(wrqu->ap_addr.sa_data, &priv->bssid, ETH_ALEN);
5496 } else
5497 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
5498
5499 IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
5500 MAC_ARG(wrqu->ap_addr.sa_data));
5501 return 0;
5502}
5503
Jeff Garzikbf794512005-07-31 13:07:26 -04005504static int ipw_wx_set_essid(struct net_device *dev,
5505 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005506 union iwreq_data *wrqu, char *extra)
5507{
5508 struct ipw_priv *priv = ieee80211_priv(dev);
5509 char *essid = ""; /* ANY */
5510 int length = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04005511
James Ketrenos43f66a62005-03-25 12:31:53 -06005512 if (wrqu->essid.flags && wrqu->essid.length) {
5513 length = wrqu->essid.length - 1;
5514 essid = extra;
5515 }
5516 if (length == 0) {
5517 IPW_DEBUG_WX("Setting ESSID to ANY\n");
5518 priv->config &= ~CFG_STATIC_ESSID;
5519 if (!(priv->status & (STATUS_SCANNING | STATUS_ASSOCIATED |
5520 STATUS_ASSOCIATING))) {
5521 IPW_DEBUG_ASSOC("Attempting to associate with new "
5522 "parameters.\n");
5523 ipw_associate(priv);
5524 }
5525
5526 return 0;
5527 }
5528
5529 length = min(length, IW_ESSID_MAX_SIZE);
5530
5531 priv->config |= CFG_STATIC_ESSID;
5532
5533 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
5534 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
5535 return 0;
5536 }
5537
5538 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
5539 length);
5540
5541 priv->essid_len = length;
5542 memcpy(priv->essid, essid, priv->essid_len);
Jeff Garzikbf794512005-07-31 13:07:26 -04005543
James Ketrenos43f66a62005-03-25 12:31:53 -06005544 /* If we are currently associated, or trying to associate
5545 * then see if this is a new ESSID (causing us to disassociate) */
5546 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
5547 IPW_DEBUG_ASSOC("Disassociating due to ESSID change.\n");
5548 ipw_disassociate(priv);
5549 } else {
5550 ipw_associate(priv);
5551 }
5552
5553 return 0;
5554}
5555
Jeff Garzikbf794512005-07-31 13:07:26 -04005556static int ipw_wx_get_essid(struct net_device *dev,
5557 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005558 union iwreq_data *wrqu, char *extra)
5559{
5560 struct ipw_priv *priv = ieee80211_priv(dev);
5561
5562 /* If we are associated, trying to associate, or have a statically
5563 * configured ESSID then return that; otherwise return ANY */
5564 if (priv->config & CFG_STATIC_ESSID ||
Jeff Garzikbf794512005-07-31 13:07:26 -04005565 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
5566 IPW_DEBUG_WX("Getting essid: '%s'\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06005567 escape_essid(priv->essid, priv->essid_len));
Jeff Garzikbf794512005-07-31 13:07:26 -04005568 memcpy(extra, priv->essid, priv->essid_len);
James Ketrenos43f66a62005-03-25 12:31:53 -06005569 wrqu->essid.length = priv->essid_len;
5570 wrqu->essid.flags = 1; /* active */
5571 } else {
5572 IPW_DEBUG_WX("Getting essid: ANY\n");
5573 wrqu->essid.length = 0;
5574 wrqu->essid.flags = 0; /* active */
5575 }
5576
5577 return 0;
5578}
5579
Jeff Garzikbf794512005-07-31 13:07:26 -04005580static int ipw_wx_set_nick(struct net_device *dev,
5581 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005582 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005583{
James Ketrenos43f66a62005-03-25 12:31:53 -06005584 struct ipw_priv *priv = ieee80211_priv(dev);
5585
5586 IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
5587 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
5588 return -E2BIG;
5589
5590 wrqu->data.length = min((size_t)wrqu->data.length, sizeof(priv->nick));
5591 memset(priv->nick, 0, sizeof(priv->nick));
5592 memcpy(priv->nick, extra, wrqu->data.length);
5593 IPW_DEBUG_TRACE("<<\n");
5594 return 0;
5595
5596}
5597
5598
Jeff Garzikbf794512005-07-31 13:07:26 -04005599static int ipw_wx_get_nick(struct net_device *dev,
5600 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005601 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005602{
James Ketrenos43f66a62005-03-25 12:31:53 -06005603 struct ipw_priv *priv = ieee80211_priv(dev);
5604 IPW_DEBUG_WX("Getting nick\n");
5605 wrqu->data.length = strlen(priv->nick) + 1;
5606 memcpy(extra, priv->nick, wrqu->data.length);
5607 wrqu->data.flags = 1; /* active */
5608 return 0;
5609}
5610
5611
5612static int ipw_wx_set_rate(struct net_device *dev,
5613 struct iw_request_info *info,
5614 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005615{
James Ketrenos43f66a62005-03-25 12:31:53 -06005616 IPW_DEBUG_WX("0x%p, 0x%p, 0x%p\n", dev, info, wrqu);
Jeff Garzikbf794512005-07-31 13:07:26 -04005617 return -EOPNOTSUPP;
James Ketrenos43f66a62005-03-25 12:31:53 -06005618}
5619
Jeff Garzikbf794512005-07-31 13:07:26 -04005620static int ipw_wx_get_rate(struct net_device *dev,
5621 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005622 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005623{
James Ketrenos43f66a62005-03-25 12:31:53 -06005624 struct ipw_priv * priv = ieee80211_priv(dev);
5625 wrqu->bitrate.value = priv->last_rate;
5626
5627 IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
5628 return 0;
5629}
5630
5631
Jeff Garzikbf794512005-07-31 13:07:26 -04005632static int ipw_wx_set_rts(struct net_device *dev,
5633 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005634 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005635{
James Ketrenos43f66a62005-03-25 12:31:53 -06005636 struct ipw_priv *priv = ieee80211_priv(dev);
5637
5638 if (wrqu->rts.disabled)
5639 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
5640 else {
5641 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
5642 wrqu->rts.value > MAX_RTS_THRESHOLD)
5643 return -EINVAL;
Jeff Garzikbf794512005-07-31 13:07:26 -04005644
James Ketrenos43f66a62005-03-25 12:31:53 -06005645 priv->rts_threshold = wrqu->rts.value;
5646 }
5647
5648 ipw_send_rts_threshold(priv, priv->rts_threshold);
5649 IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold);
5650 return 0;
5651}
5652
Jeff Garzikbf794512005-07-31 13:07:26 -04005653static int ipw_wx_get_rts(struct net_device *dev,
5654 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005655 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005656{
James Ketrenos43f66a62005-03-25 12:31:53 -06005657 struct ipw_priv *priv = ieee80211_priv(dev);
5658 wrqu->rts.value = priv->rts_threshold;
5659 wrqu->rts.fixed = 0; /* no auto select */
Jeff Garzikbf794512005-07-31 13:07:26 -04005660 wrqu->rts.disabled =
James Ketrenos43f66a62005-03-25 12:31:53 -06005661 (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
5662
5663 IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value);
5664 return 0;
5665}
5666
5667
Jeff Garzikbf794512005-07-31 13:07:26 -04005668static int ipw_wx_set_txpow(struct net_device *dev,
5669 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005670 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005671{
James Ketrenos43f66a62005-03-25 12:31:53 -06005672 struct ipw_priv *priv = ieee80211_priv(dev);
5673 struct ipw_tx_power tx_power;
5674 int i;
5675
5676 if (ipw_radio_kill_sw(priv, wrqu->power.disabled))
5677 return -EINPROGRESS;
5678
5679 if (wrqu->power.flags != IW_TXPOW_DBM)
5680 return -EINVAL;
5681
Jeff Garzikbf794512005-07-31 13:07:26 -04005682 if ((wrqu->power.value > 20) ||
James Ketrenos43f66a62005-03-25 12:31:53 -06005683 (wrqu->power.value < -12))
5684 return -EINVAL;
5685
5686 priv->tx_power = wrqu->power.value;
5687
5688 memset(&tx_power, 0, sizeof(tx_power));
5689
5690 /* configure device for 'G' band */
5691 tx_power.ieee_mode = IPW_G_MODE;
5692 tx_power.num_channels = 11;
5693 for (i = 0; i < 11; i++) {
5694 tx_power.channels_tx_power[i].channel_number = i + 1;
5695 tx_power.channels_tx_power[i].tx_power = priv->tx_power;
5696 }
5697 if (ipw_send_tx_power(priv, &tx_power))
5698 goto error;
5699
5700 /* configure device to also handle 'B' band */
5701 tx_power.ieee_mode = IPW_B_MODE;
5702 if (ipw_send_tx_power(priv, &tx_power))
5703 goto error;
5704
5705 return 0;
5706
5707 error:
5708 return -EIO;
5709}
5710
5711
Jeff Garzikbf794512005-07-31 13:07:26 -04005712static int ipw_wx_get_txpow(struct net_device *dev,
5713 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005714 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005715{
James Ketrenos43f66a62005-03-25 12:31:53 -06005716 struct ipw_priv *priv = ieee80211_priv(dev);
5717
5718 wrqu->power.value = priv->tx_power;
5719 wrqu->power.fixed = 1;
5720 wrqu->power.flags = IW_TXPOW_DBM;
5721 wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
5722
Jeff Garzikbf794512005-07-31 13:07:26 -04005723 IPW_DEBUG_WX("GET TX Power -> %s %d \n",
James Ketrenos43f66a62005-03-25 12:31:53 -06005724 wrqu->power.disabled ? "ON" : "OFF",
5725 wrqu->power.value);
5726
5727 return 0;
5728}
5729
Jeff Garzikbf794512005-07-31 13:07:26 -04005730static int ipw_wx_set_frag(struct net_device *dev,
5731 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005732 union iwreq_data *wrqu, char *extra)
5733{
5734 struct ipw_priv *priv = ieee80211_priv(dev);
5735
5736 if (wrqu->frag.disabled)
5737 priv->ieee->fts = DEFAULT_FTS;
5738 else {
5739 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
5740 wrqu->frag.value > MAX_FRAG_THRESHOLD)
5741 return -EINVAL;
Jeff Garzikbf794512005-07-31 13:07:26 -04005742
James Ketrenos43f66a62005-03-25 12:31:53 -06005743 priv->ieee->fts = wrqu->frag.value & ~0x1;
5744 }
5745
5746 ipw_send_frag_threshold(priv, wrqu->frag.value);
5747 IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value);
5748 return 0;
5749}
5750
Jeff Garzikbf794512005-07-31 13:07:26 -04005751static int ipw_wx_get_frag(struct net_device *dev,
5752 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005753 union iwreq_data *wrqu, char *extra)
5754{
5755 struct ipw_priv *priv = ieee80211_priv(dev);
5756 wrqu->frag.value = priv->ieee->fts;
5757 wrqu->frag.fixed = 0; /* no auto select */
Jeff Garzikbf794512005-07-31 13:07:26 -04005758 wrqu->frag.disabled =
James Ketrenos43f66a62005-03-25 12:31:53 -06005759 (wrqu->frag.value == DEFAULT_FTS);
5760
5761 IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
5762
5763 return 0;
5764}
5765
Jeff Garzikbf794512005-07-31 13:07:26 -04005766static int ipw_wx_set_retry(struct net_device *dev,
5767 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005768 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005769{
James Ketrenos43f66a62005-03-25 12:31:53 -06005770 IPW_DEBUG_WX("0x%p, 0x%p, 0x%p\n", dev, info, wrqu);
Jeff Garzikbf794512005-07-31 13:07:26 -04005771 return -EOPNOTSUPP;
James Ketrenos43f66a62005-03-25 12:31:53 -06005772}
5773
5774
Jeff Garzikbf794512005-07-31 13:07:26 -04005775static int ipw_wx_get_retry(struct net_device *dev,
5776 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005777 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005778{
James Ketrenos43f66a62005-03-25 12:31:53 -06005779 IPW_DEBUG_WX("0x%p, 0x%p, 0x%p\n", dev, info, wrqu);
Jeff Garzikbf794512005-07-31 13:07:26 -04005780 return -EOPNOTSUPP;
James Ketrenos43f66a62005-03-25 12:31:53 -06005781}
5782
5783
Jeff Garzikbf794512005-07-31 13:07:26 -04005784static int ipw_wx_set_scan(struct net_device *dev,
5785 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005786 union iwreq_data *wrqu, char *extra)
5787{
5788 struct ipw_priv *priv = ieee80211_priv(dev);
5789 IPW_DEBUG_WX("Start scan\n");
5790 if (ipw_request_scan(priv))
5791 return -EIO;
5792 return 0;
5793}
5794
Jeff Garzikbf794512005-07-31 13:07:26 -04005795static int ipw_wx_get_scan(struct net_device *dev,
5796 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005797 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04005798{
James Ketrenos43f66a62005-03-25 12:31:53 -06005799 struct ipw_priv *priv = ieee80211_priv(dev);
5800 return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
5801}
5802
Jeff Garzikbf794512005-07-31 13:07:26 -04005803static int ipw_wx_set_encode(struct net_device *dev,
5804 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005805 union iwreq_data *wrqu, char *key)
5806{
5807 struct ipw_priv *priv = ieee80211_priv(dev);
5808 return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
5809}
5810
Jeff Garzikbf794512005-07-31 13:07:26 -04005811static int ipw_wx_get_encode(struct net_device *dev,
5812 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005813 union iwreq_data *wrqu, char *key)
5814{
5815 struct ipw_priv *priv = ieee80211_priv(dev);
5816 return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
5817}
5818
Jeff Garzikbf794512005-07-31 13:07:26 -04005819static int ipw_wx_set_power(struct net_device *dev,
5820 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005821 union iwreq_data *wrqu, char *extra)
5822{
5823 struct ipw_priv *priv = ieee80211_priv(dev);
5824 int err;
5825
5826 if (wrqu->power.disabled) {
5827 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
5828 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
5829 if (err) {
5830 IPW_DEBUG_WX("failed setting power mode.\n");
5831 return err;
5832 }
5833
5834 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
5835
5836 return 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04005837 }
James Ketrenos43f66a62005-03-25 12:31:53 -06005838
5839 switch (wrqu->power.flags & IW_POWER_MODE) {
5840 case IW_POWER_ON: /* If not specified */
5841 case IW_POWER_MODE: /* If set all mask */
5842 case IW_POWER_ALL_R: /* If explicitely state all */
5843 break;
5844 default: /* Otherwise we don't support it */
5845 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
5846 wrqu->power.flags);
Jeff Garzikbf794512005-07-31 13:07:26 -04005847 return -EOPNOTSUPP;
James Ketrenos43f66a62005-03-25 12:31:53 -06005848 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005849
James Ketrenos43f66a62005-03-25 12:31:53 -06005850 /* If the user hasn't specified a power management mode yet, default
5851 * to BATTERY */
5852 if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
5853 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
Jeff Garzikbf794512005-07-31 13:07:26 -04005854 else
James Ketrenos43f66a62005-03-25 12:31:53 -06005855 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
5856 err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
5857 if (err) {
5858 IPW_DEBUG_WX("failed setting power mode.\n");
5859 return err;
5860 }
5861
5862 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n",
5863 priv->power_mode);
Jeff Garzikbf794512005-07-31 13:07:26 -04005864
James Ketrenos43f66a62005-03-25 12:31:53 -06005865 return 0;
5866}
5867
Jeff Garzikbf794512005-07-31 13:07:26 -04005868static int ipw_wx_get_power(struct net_device *dev,
5869 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005870 union iwreq_data *wrqu, char *extra)
5871{
5872 struct ipw_priv *priv = ieee80211_priv(dev);
5873
5874 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
5875 wrqu->power.disabled = 1;
5876 } else {
5877 wrqu->power.disabled = 0;
5878 }
5879
5880 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
Jeff Garzikbf794512005-07-31 13:07:26 -04005881
James Ketrenos43f66a62005-03-25 12:31:53 -06005882 return 0;
5883}
5884
Jeff Garzikbf794512005-07-31 13:07:26 -04005885static int ipw_wx_set_powermode(struct net_device *dev,
5886 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005887 union iwreq_data *wrqu, char *extra)
5888{
5889 struct ipw_priv *priv = ieee80211_priv(dev);
5890 int mode = *(int *)extra;
5891 int err;
Jeff Garzikbf794512005-07-31 13:07:26 -04005892
James Ketrenos43f66a62005-03-25 12:31:53 -06005893 if ((mode < 1) || (mode > IPW_POWER_LIMIT)) {
5894 mode = IPW_POWER_AC;
5895 priv->power_mode = mode;
5896 } else {
5897 priv->power_mode = IPW_POWER_ENABLED | mode;
5898 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005899
James Ketrenos43f66a62005-03-25 12:31:53 -06005900 if (priv->power_mode != mode) {
5901 err = ipw_send_power_mode(priv, mode);
Jeff Garzikbf794512005-07-31 13:07:26 -04005902
James Ketrenos43f66a62005-03-25 12:31:53 -06005903 if (err) {
5904 IPW_DEBUG_WX("failed setting power mode.\n");
5905 return err;
5906 }
5907 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005908
James Ketrenos43f66a62005-03-25 12:31:53 -06005909 return 0;
5910}
5911
5912#define MAX_WX_STRING 80
Jeff Garzikbf794512005-07-31 13:07:26 -04005913static int ipw_wx_get_powermode(struct net_device *dev,
5914 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06005915 union iwreq_data *wrqu, char *extra)
5916{
5917 struct ipw_priv *priv = ieee80211_priv(dev);
5918 int level = IPW_POWER_LEVEL(priv->power_mode);
5919 char *p = extra;
5920
5921 p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
5922
5923 switch (level) {
5924 case IPW_POWER_AC:
5925 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
5926 break;
5927 case IPW_POWER_BATTERY:
5928 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
5929 break;
5930 default:
5931 p += snprintf(p, MAX_WX_STRING - (p - extra),
Jeff Garzikbf794512005-07-31 13:07:26 -04005932 "(Timeout %dms, Period %dms)",
James Ketrenos43f66a62005-03-25 12:31:53 -06005933 timeout_duration[level - 1] / 1000,
5934 period_duration[level - 1] / 1000);
5935 }
5936
5937 if (!(priv->power_mode & IPW_POWER_ENABLED))
5938 p += snprintf(p, MAX_WX_STRING - (p - extra)," OFF");
5939
5940 wrqu->data.length = p - extra + 1;
5941
5942 return 0;
5943}
5944
5945static int ipw_wx_set_wireless_mode(struct net_device *dev,
5946 struct iw_request_info *info,
5947 union iwreq_data *wrqu, char *extra)
5948{
5949 struct ipw_priv *priv = ieee80211_priv(dev);
5950 int mode = *(int *)extra;
5951 u8 band = 0, modulation = 0;
5952
5953 if (mode == 0 || mode & ~IEEE_MODE_MASK) {
5954 IPW_WARNING("Attempt to set invalid wireless mode: %d\n",
5955 mode);
5956 return -EINVAL;
5957 }
Jeff Garzikbf794512005-07-31 13:07:26 -04005958
James Ketrenos43f66a62005-03-25 12:31:53 -06005959 if (priv->adapter == IPW_2915ABG) {
5960 priv->ieee->abg_ture = 1;
5961 if (mode & IEEE_A) {
5962 band |= IEEE80211_52GHZ_BAND;
5963 modulation |= IEEE80211_OFDM_MODULATION;
5964 } else
5965 priv->ieee->abg_ture = 0;
5966 } else {
5967 if (mode & IEEE_A) {
5968 IPW_WARNING("Attempt to set 2200BG into "
5969 "802.11a mode\n");
5970 return -EINVAL;
5971 }
5972
5973 priv->ieee->abg_ture = 0;
5974 }
5975
5976 if (mode & IEEE_B) {
5977 band |= IEEE80211_24GHZ_BAND;
5978 modulation |= IEEE80211_CCK_MODULATION;
5979 } else
5980 priv->ieee->abg_ture = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04005981
James Ketrenos43f66a62005-03-25 12:31:53 -06005982 if (mode & IEEE_G) {
5983 band |= IEEE80211_24GHZ_BAND;
5984 modulation |= IEEE80211_OFDM_MODULATION;
5985 } else
5986 priv->ieee->abg_ture = 0;
5987
5988 priv->ieee->mode = mode;
5989 priv->ieee->freq_band = band;
5990 priv->ieee->modulation = modulation;
5991 init_supported_rates(priv, &priv->rates);
5992
5993 /* If we are currently associated, or trying to associate
Jeff Garzikbf794512005-07-31 13:07:26 -04005994 * then see if this is a new configuration (causing us to
James Ketrenos43f66a62005-03-25 12:31:53 -06005995 * disassociate) */
5996 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
Jeff Garzikbf794512005-07-31 13:07:26 -04005997 /* The resulting association will trigger
James Ketrenos43f66a62005-03-25 12:31:53 -06005998 * the new rates to be sent to the device */
5999 IPW_DEBUG_ASSOC("Disassociating due to mode change.\n");
6000 ipw_disassociate(priv);
6001 } else
6002 ipw_send_supported_rates(priv, &priv->rates);
6003
Jeff Garzikbf794512005-07-31 13:07:26 -04006004 IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06006005 mode & IEEE_A ? 'a' : '.',
6006 mode & IEEE_B ? 'b' : '.',
6007 mode & IEEE_G ? 'g' : '.');
6008 return 0;
6009}
6010
6011static int ipw_wx_get_wireless_mode(struct net_device *dev,
6012 struct iw_request_info *info,
6013 union iwreq_data *wrqu, char *extra)
6014{
6015 struct ipw_priv *priv = ieee80211_priv(dev);
6016
6017 switch (priv->ieee->freq_band) {
6018 case IEEE80211_24GHZ_BAND:
6019 switch (priv->ieee->modulation) {
6020 case IEEE80211_CCK_MODULATION:
6021 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
6022 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04006023 case IEEE80211_OFDM_MODULATION:
James Ketrenos43f66a62005-03-25 12:31:53 -06006024 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
6025 break;
6026 default:
6027 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
6028 break;
6029 }
6030 break;
6031
Jeff Garzikbf794512005-07-31 13:07:26 -04006032 case IEEE80211_52GHZ_BAND:
James Ketrenos43f66a62005-03-25 12:31:53 -06006033 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
6034 break;
6035
6036 default: /* Mixed Band */
6037 switch (priv->ieee->modulation) {
6038 case IEEE80211_CCK_MODULATION:
6039 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
6040 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04006041 case IEEE80211_OFDM_MODULATION:
James Ketrenos43f66a62005-03-25 12:31:53 -06006042 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
6043 break;
6044 default:
6045 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
6046 break;
6047 }
6048 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04006049 }
6050
James Ketrenos43f66a62005-03-25 12:31:53 -06006051 IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
6052
6053 wrqu->data.length = strlen(extra) + 1;
6054
6055 return 0;
6056}
6057
6058#ifdef CONFIG_IPW_PROMISC
Jeff Garzikbf794512005-07-31 13:07:26 -04006059static int ipw_wx_set_promisc(struct net_device *dev,
6060 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06006061 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04006062{
James Ketrenos43f66a62005-03-25 12:31:53 -06006063 struct ipw_priv *priv = ieee80211_priv(dev);
6064 int *parms = (int *)extra;
6065 int enable = (parms[0] > 0);
6066
6067 IPW_DEBUG_WX("SET PROMISC: %d %d\n", enable, parms[1]);
6068 if (enable) {
6069 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
6070 priv->net_dev->type = ARPHRD_IEEE80211;
6071 ipw_adapter_restart(priv);
6072 }
Jeff Garzikbf794512005-07-31 13:07:26 -04006073
James Ketrenos43f66a62005-03-25 12:31:53 -06006074 ipw_set_channel(priv, parms[1]);
6075 } else {
6076 if (priv->ieee->iw_mode != IW_MODE_MONITOR)
6077 return 0;
6078 priv->net_dev->type = ARPHRD_ETHER;
6079 ipw_adapter_restart(priv);
6080 }
6081 return 0;
6082}
6083
6084
Jeff Garzikbf794512005-07-31 13:07:26 -04006085static int ipw_wx_reset(struct net_device *dev,
6086 struct iw_request_info *info,
James Ketrenos43f66a62005-03-25 12:31:53 -06006087 union iwreq_data *wrqu, char *extra)
Jeff Garzikbf794512005-07-31 13:07:26 -04006088{
James Ketrenos43f66a62005-03-25 12:31:53 -06006089 struct ipw_priv *priv = ieee80211_priv(dev);
6090 IPW_DEBUG_WX("RESET\n");
6091 ipw_adapter_restart(priv);
6092 return 0;
6093}
6094#endif // CONFIG_IPW_PROMISC
6095
6096/* Rebase the WE IOCTLs to zero for the handler array */
6097#define IW_IOCTL(x) [(x)-SIOCSIWCOMMIT]
6098static iw_handler ipw_wx_handlers[] =
6099{
6100 IW_IOCTL(SIOCGIWNAME) = ipw_wx_get_name,
6101 IW_IOCTL(SIOCSIWFREQ) = ipw_wx_set_freq,
6102 IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq,
6103 IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode,
6104 IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode,
6105 IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range,
6106 IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap,
6107 IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap,
6108 IW_IOCTL(SIOCSIWSCAN) = ipw_wx_set_scan,
6109 IW_IOCTL(SIOCGIWSCAN) = ipw_wx_get_scan,
6110 IW_IOCTL(SIOCSIWESSID) = ipw_wx_set_essid,
6111 IW_IOCTL(SIOCGIWESSID) = ipw_wx_get_essid,
6112 IW_IOCTL(SIOCSIWNICKN) = ipw_wx_set_nick,
6113 IW_IOCTL(SIOCGIWNICKN) = ipw_wx_get_nick,
6114 IW_IOCTL(SIOCSIWRATE) = ipw_wx_set_rate,
6115 IW_IOCTL(SIOCGIWRATE) = ipw_wx_get_rate,
6116 IW_IOCTL(SIOCSIWRTS) = ipw_wx_set_rts,
6117 IW_IOCTL(SIOCGIWRTS) = ipw_wx_get_rts,
6118 IW_IOCTL(SIOCSIWFRAG) = ipw_wx_set_frag,
6119 IW_IOCTL(SIOCGIWFRAG) = ipw_wx_get_frag,
6120 IW_IOCTL(SIOCSIWTXPOW) = ipw_wx_set_txpow,
6121 IW_IOCTL(SIOCGIWTXPOW) = ipw_wx_get_txpow,
6122 IW_IOCTL(SIOCSIWRETRY) = ipw_wx_set_retry,
6123 IW_IOCTL(SIOCGIWRETRY) = ipw_wx_get_retry,
6124 IW_IOCTL(SIOCSIWENCODE) = ipw_wx_set_encode,
6125 IW_IOCTL(SIOCGIWENCODE) = ipw_wx_get_encode,
6126 IW_IOCTL(SIOCSIWPOWER) = ipw_wx_set_power,
6127 IW_IOCTL(SIOCGIWPOWER) = ipw_wx_get_power,
6128};
6129
6130#define IPW_PRIV_SET_POWER SIOCIWFIRSTPRIV
6131#define IPW_PRIV_GET_POWER SIOCIWFIRSTPRIV+1
6132#define IPW_PRIV_SET_MODE SIOCIWFIRSTPRIV+2
6133#define IPW_PRIV_GET_MODE SIOCIWFIRSTPRIV+3
6134#define IPW_PRIV_SET_PROMISC SIOCIWFIRSTPRIV+4
6135#define IPW_PRIV_RESET SIOCIWFIRSTPRIV+5
6136
6137
Jeff Garzikbf794512005-07-31 13:07:26 -04006138static struct iw_priv_args ipw_priv_args[] = {
James Ketrenos43f66a62005-03-25 12:31:53 -06006139 {
6140 .cmd = IPW_PRIV_SET_POWER,
Jeff Garzikbf794512005-07-31 13:07:26 -04006141 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
James Ketrenos43f66a62005-03-25 12:31:53 -06006142 .name = "set_power"
Jeff Garzikbf794512005-07-31 13:07:26 -04006143 },
James Ketrenos43f66a62005-03-25 12:31:53 -06006144 {
6145 .cmd = IPW_PRIV_GET_POWER,
6146 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
Jeff Garzikbf794512005-07-31 13:07:26 -04006147 .name = "get_power"
James Ketrenos43f66a62005-03-25 12:31:53 -06006148 },
6149 {
6150 .cmd = IPW_PRIV_SET_MODE,
6151 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
Jeff Garzikbf794512005-07-31 13:07:26 -04006152 .name = "set_mode"
James Ketrenos43f66a62005-03-25 12:31:53 -06006153 },
6154 {
6155 .cmd = IPW_PRIV_GET_MODE,
6156 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
Jeff Garzikbf794512005-07-31 13:07:26 -04006157 .name = "get_mode"
James Ketrenos43f66a62005-03-25 12:31:53 -06006158 },
6159#ifdef CONFIG_IPW_PROMISC
6160 {
Jeff Garzikbf794512005-07-31 13:07:26 -04006161 IPW_PRIV_SET_PROMISC,
6162 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"
6163 },
James Ketrenos43f66a62005-03-25 12:31:53 -06006164 {
Jeff Garzikbf794512005-07-31 13:07:26 -04006165 IPW_PRIV_RESET,
6166 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"
James Ketrenos43f66a62005-03-25 12:31:53 -06006167 },
6168#endif /* CONFIG_IPW_PROMISC */
6169};
6170
6171static iw_handler ipw_priv_handler[] = {
6172 ipw_wx_set_powermode,
6173 ipw_wx_get_powermode,
6174 ipw_wx_set_wireless_mode,
6175 ipw_wx_get_wireless_mode,
6176#ifdef CONFIG_IPW_PROMISC
6177 ipw_wx_set_promisc,
Jeff Garzikbf794512005-07-31 13:07:26 -04006178 ipw_wx_reset,
James Ketrenos43f66a62005-03-25 12:31:53 -06006179#endif
6180};
6181
Jeff Garzikbf794512005-07-31 13:07:26 -04006182static struct iw_handler_def ipw_wx_handler_def =
James Ketrenos43f66a62005-03-25 12:31:53 -06006183{
6184 .standard = ipw_wx_handlers,
6185 .num_standard = ARRAY_SIZE(ipw_wx_handlers),
6186 .num_private = ARRAY_SIZE(ipw_priv_handler),
6187 .num_private_args = ARRAY_SIZE(ipw_priv_args),
Jeff Garzikbf794512005-07-31 13:07:26 -04006188 .private = ipw_priv_handler,
6189 .private_args = ipw_priv_args,
James Ketrenos43f66a62005-03-25 12:31:53 -06006190};
6191
6192
6193
6194
6195/*
6196 * Get wireless statistics.
6197 * Called by /proc/net/wireless
6198 * Also called by SIOCGIWSTATS
6199 */
6200static struct iw_statistics *ipw_get_wireless_stats(struct net_device * dev)
6201{
6202 struct ipw_priv *priv = ieee80211_priv(dev);
6203 struct iw_statistics *wstats;
Jeff Garzikbf794512005-07-31 13:07:26 -04006204
James Ketrenos43f66a62005-03-25 12:31:53 -06006205 wstats = &priv->wstats;
6206
6207 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
Jeff Garzikbf794512005-07-31 13:07:26 -04006208 * ipw2100_wx_wireless_stats seems to be called before fw is
James Ketrenos43f66a62005-03-25 12:31:53 -06006209 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
6210 * and associated; if not associcated, the values are all meaningless
6211 * anyway, so set them all to NULL and INVALID */
6212 if (!(priv->status & STATUS_ASSOCIATED)) {
6213 wstats->miss.beacon = 0;
6214 wstats->discard.retries = 0;
6215 wstats->qual.qual = 0;
6216 wstats->qual.level = 0;
6217 wstats->qual.noise = 0;
6218 wstats->qual.updated = 7;
6219 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
6220 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
6221 return wstats;
Jeff Garzikbf794512005-07-31 13:07:26 -04006222 }
James Ketrenos43f66a62005-03-25 12:31:53 -06006223
6224 wstats->qual.qual = priv->quality;
6225 wstats->qual.level = average_value(&priv->average_rssi);
6226 wstats->qual.noise = average_value(&priv->average_noise);
6227 wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
6228 IW_QUAL_NOISE_UPDATED;
6229
6230 wstats->miss.beacon = average_value(&priv->average_missed_beacons);
6231 wstats->discard.retries = priv->last_tx_failures;
6232 wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
Jeff Garzikbf794512005-07-31 13:07:26 -04006233
James Ketrenos43f66a62005-03-25 12:31:53 -06006234/* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
6235 goto fail_get_ordinal;
6236 wstats->discard.retries += tx_retry; */
Jeff Garzikbf794512005-07-31 13:07:26 -04006237
James Ketrenos43f66a62005-03-25 12:31:53 -06006238 return wstats;
6239}
6240
6241
6242/* net device stuff */
6243
6244static inline void init_sys_config(struct ipw_sys_config *sys_config)
6245{
6246 memset(sys_config, 0, sizeof(struct ipw_sys_config));
6247 sys_config->bt_coexistence = 1; /* We may need to look into prvStaBtConfig */
6248 sys_config->answer_broadcast_ssid_probe = 0;
6249 sys_config->accept_all_data_frames = 0;
6250 sys_config->accept_non_directed_frames = 1;
6251 sys_config->exclude_unicast_unencrypted = 0;
6252 sys_config->disable_unicast_decryption = 1;
6253 sys_config->exclude_multicast_unencrypted = 0;
6254 sys_config->disable_multicast_decryption = 1;
6255 sys_config->antenna_diversity = CFG_SYS_ANTENNA_BOTH;
6256 sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */
6257 sys_config->dot11g_auto_detection = 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04006258 sys_config->enable_cts_to_self = 0;
James Ketrenos43f66a62005-03-25 12:31:53 -06006259 sys_config->bt_coexist_collision_thr = 0;
6260 sys_config->pass_noise_stats_to_host = 1;
6261}
6262
6263static int ipw_net_open(struct net_device *dev)
6264{
6265 struct ipw_priv *priv = ieee80211_priv(dev);
6266 IPW_DEBUG_INFO("dev->open\n");
6267 /* we should be verifying the device is ready to be opened */
Jeff Garzikbf794512005-07-31 13:07:26 -04006268 if (!(priv->status & STATUS_RF_KILL_MASK) &&
6269 (priv->status & STATUS_ASSOCIATED))
James Ketrenos43f66a62005-03-25 12:31:53 -06006270 netif_start_queue(dev);
6271 return 0;
6272}
6273
6274static int ipw_net_stop(struct net_device *dev)
6275{
6276 IPW_DEBUG_INFO("dev->close\n");
6277 netif_stop_queue(dev);
6278 return 0;
6279}
6280
6281/*
6282todo:
6283
6284modify to send one tfd per fragment instead of using chunking. otherwise
6285we need to heavily modify the ieee80211_skb_to_txb.
6286*/
6287
6288static inline void ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb)
6289{
6290 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)
6291 txb->fragments[0]->data;
6292 int i = 0;
6293 struct tfd_frame *tfd;
6294 struct clx2_tx_queue *txq = &priv->txq[0];
6295 struct clx2_queue *q = &txq->q;
6296 u8 id, hdr_len, unicast;
6297 u16 remaining_bytes;
6298
6299 switch (priv->ieee->iw_mode) {
6300 case IW_MODE_ADHOC:
6301 hdr_len = IEEE80211_3ADDR_LEN;
6302 unicast = !is_broadcast_ether_addr(hdr->addr1) &&
6303 !is_multicast_ether_addr(hdr->addr1);
6304 id = ipw_find_station(priv, hdr->addr1);
6305 if (id == IPW_INVALID_STATION) {
6306 id = ipw_add_station(priv, hdr->addr1);
6307 if (id == IPW_INVALID_STATION) {
6308 IPW_WARNING("Attempt to send data to "
Jeff Garzikbf794512005-07-31 13:07:26 -04006309 "invalid cell: " MAC_FMT "\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06006310 MAC_ARG(hdr->addr1));
6311 goto drop;
6312 }
6313 }
6314 break;
6315
6316 case IW_MODE_INFRA:
6317 default:
6318 unicast = !is_broadcast_ether_addr(hdr->addr3) &&
6319 !is_multicast_ether_addr(hdr->addr3);
6320 hdr_len = IEEE80211_3ADDR_LEN;
6321 id = 0;
6322 break;
6323 }
6324
6325 tfd = &txq->bd[q->first_empty];
6326 txq->txb[q->first_empty] = txb;
6327 memset(tfd, 0, sizeof(*tfd));
6328 tfd->u.data.station_number = id;
6329
6330 tfd->control_flags.message_type = TX_FRAME_TYPE;
6331 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
6332
6333 tfd->u.data.cmd_id = DINO_CMD_TX;
6334 tfd->u.data.len = txb->payload_size;
6335 remaining_bytes = txb->payload_size;
6336 if (unlikely(!unicast))
6337 tfd->u.data.tx_flags = DCT_FLAG_NO_WEP;
6338 else
6339 tfd->u.data.tx_flags = DCT_FLAG_NO_WEP | DCT_FLAG_ACK_REQD;
Jeff Garzikbf794512005-07-31 13:07:26 -04006340
James Ketrenos43f66a62005-03-25 12:31:53 -06006341 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
6342 tfd->u.data.tx_flags_ext = DCT_FLAG_EXT_MODE_CCK;
6343 else
6344 tfd->u.data.tx_flags_ext = DCT_FLAG_EXT_MODE_OFDM;
6345
6346 if (priv->config & CFG_PREAMBLE)
6347 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREMBL;
6348
6349 memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
6350
6351 /* payload */
6352 tfd->u.data.num_chunks = min((u8)(NUM_TFD_CHUNKS - 2), txb->nr_frags);
6353 for (i = 0; i < tfd->u.data.num_chunks; i++) {
Jeff Garzikbf794512005-07-31 13:07:26 -04006354 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
James Ketrenos43f66a62005-03-25 12:31:53 -06006355 i, tfd->u.data.num_chunks,
6356 txb->fragments[i]->len - hdr_len);
Jeff Garzikbf794512005-07-31 13:07:26 -04006357 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
James Ketrenos43f66a62005-03-25 12:31:53 -06006358 txb->fragments[i]->len - hdr_len);
6359
6360 tfd->u.data.chunk_ptr[i] = pci_map_single(
6361 priv->pci_dev, txb->fragments[i]->data + hdr_len,
6362 txb->fragments[i]->len - hdr_len, PCI_DMA_TODEVICE);
6363 tfd->u.data.chunk_len[i] = txb->fragments[i]->len - hdr_len;
6364 }
6365
6366 if (i != txb->nr_frags) {
6367 struct sk_buff *skb;
6368 u16 remaining_bytes = 0;
6369 int j;
6370
6371 for (j = i; j < txb->nr_frags; j++)
6372 remaining_bytes += txb->fragments[j]->len - hdr_len;
6373
6374 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
6375 remaining_bytes);
6376 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
6377 if (skb != NULL) {
6378 tfd->u.data.chunk_len[i] = remaining_bytes;
6379 for (j = i; j < txb->nr_frags; j++) {
6380 int size = txb->fragments[j]->len - hdr_len;
6381 printk(KERN_INFO "Adding frag %d %d...\n",
6382 j, size);
6383 memcpy(skb_put(skb, size),
6384 txb->fragments[j]->data + hdr_len,
6385 size);
6386 }
6387 dev_kfree_skb_any(txb->fragments[i]);
6388 txb->fragments[i] = skb;
6389 tfd->u.data.chunk_ptr[i] = pci_map_single(
6390 priv->pci_dev, skb->data,
6391 tfd->u.data.chunk_len[i], PCI_DMA_TODEVICE);
6392 tfd->u.data.num_chunks++;
Jeff Garzikbf794512005-07-31 13:07:26 -04006393 }
James Ketrenos43f66a62005-03-25 12:31:53 -06006394 }
6395
6396 /* kick DMA */
6397 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
6398 ipw_write32(priv, q->reg_w, q->first_empty);
6399
Jeff Garzikbf794512005-07-31 13:07:26 -04006400 if (ipw_queue_space(q) < q->high_mark)
James Ketrenos43f66a62005-03-25 12:31:53 -06006401 netif_stop_queue(priv->net_dev);
6402
6403 return;
6404
6405 drop:
6406 IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
6407 ieee80211_txb_free(txb);
6408}
6409
6410static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb,
6411 struct net_device *dev)
6412{
6413 struct ipw_priv *priv = ieee80211_priv(dev);
6414 unsigned long flags;
6415
6416 IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
6417
6418 spin_lock_irqsave(&priv->lock, flags);
6419
6420 if (!(priv->status & STATUS_ASSOCIATED)) {
6421 IPW_DEBUG_INFO("Tx attempt while not associated.\n");
6422 priv->ieee->stats.tx_carrier_errors++;
6423 netif_stop_queue(dev);
6424 goto fail_unlock;
6425 }
6426
6427 ipw_tx_skb(priv, txb);
6428
6429 spin_unlock_irqrestore(&priv->lock, flags);
6430 return 0;
6431
6432 fail_unlock:
6433 spin_unlock_irqrestore(&priv->lock, flags);
6434 return 1;
6435}
6436
6437static struct net_device_stats *ipw_net_get_stats(struct net_device *dev)
6438{
6439 struct ipw_priv *priv = ieee80211_priv(dev);
Jeff Garzikbf794512005-07-31 13:07:26 -04006440
James Ketrenos43f66a62005-03-25 12:31:53 -06006441 priv->ieee->stats.tx_packets = priv->tx_packets;
6442 priv->ieee->stats.rx_packets = priv->rx_packets;
6443 return &priv->ieee->stats;
6444}
6445
6446static void ipw_net_set_multicast_list(struct net_device *dev)
6447{
6448
6449}
6450
6451static int ipw_net_set_mac_address(struct net_device *dev, void *p)
6452{
6453 struct ipw_priv *priv = ieee80211_priv(dev);
6454 struct sockaddr *addr = p;
6455 if (!is_valid_ether_addr(addr->sa_data))
6456 return -EADDRNOTAVAIL;
6457 priv->config |= CFG_CUSTOM_MAC;
6458 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
6459 printk(KERN_INFO "%s: Setting MAC to " MAC_FMT "\n",
6460 priv->net_dev->name, MAC_ARG(priv->mac_addr));
6461 ipw_adapter_restart(priv);
6462 return 0;
6463}
6464
Jeff Garzikbf794512005-07-31 13:07:26 -04006465static void ipw_ethtool_get_drvinfo(struct net_device *dev,
James Ketrenos43f66a62005-03-25 12:31:53 -06006466 struct ethtool_drvinfo *info)
6467{
6468 struct ipw_priv *p = ieee80211_priv(dev);
6469 char vers[64];
6470 char date[32];
6471 u32 len;
6472
6473 strcpy(info->driver, DRV_NAME);
6474 strcpy(info->version, DRV_VERSION);
6475
6476 len = sizeof(vers);
6477 ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
6478 len = sizeof(date);
6479 ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
6480
Jeff Garzikbf794512005-07-31 13:07:26 -04006481 snprintf(info->fw_version, sizeof(info->fw_version),"%s (%s)",
James Ketrenos43f66a62005-03-25 12:31:53 -06006482 vers, date);
6483 strcpy(info->bus_info, pci_name(p->pci_dev));
6484 info->eedump_len = CX2_EEPROM_IMAGE_SIZE;
6485}
6486
6487static u32 ipw_ethtool_get_link(struct net_device *dev)
6488{
6489 struct ipw_priv *priv = ieee80211_priv(dev);
6490 return (priv->status & STATUS_ASSOCIATED) != 0;
6491}
6492
6493static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
6494{
6495 return CX2_EEPROM_IMAGE_SIZE;
6496}
6497
6498static int ipw_ethtool_get_eeprom(struct net_device *dev,
6499 struct ethtool_eeprom *eeprom, u8 *bytes)
6500{
6501 struct ipw_priv *p = ieee80211_priv(dev);
6502
6503 if (eeprom->offset + eeprom->len > CX2_EEPROM_IMAGE_SIZE)
6504 return -EINVAL;
Jeff Garzikbf794512005-07-31 13:07:26 -04006505
James Ketrenos43f66a62005-03-25 12:31:53 -06006506 memcpy(bytes, &((u8 *)p->eeprom)[eeprom->offset], eeprom->len);
6507 return 0;
6508}
6509
6510static int ipw_ethtool_set_eeprom(struct net_device *dev,
6511 struct ethtool_eeprom *eeprom, u8 *bytes)
6512{
6513 struct ipw_priv *p = ieee80211_priv(dev);
6514 int i;
6515
6516 if (eeprom->offset + eeprom->len > CX2_EEPROM_IMAGE_SIZE)
6517 return -EINVAL;
6518
6519 memcpy(&((u8 *)p->eeprom)[eeprom->offset], bytes, eeprom->len);
Jeff Garzikbf794512005-07-31 13:07:26 -04006520 for (i = IPW_EEPROM_DATA;
6521 i < IPW_EEPROM_DATA + CX2_EEPROM_IMAGE_SIZE;
James Ketrenos43f66a62005-03-25 12:31:53 -06006522 i++)
6523 ipw_write8(p, i, p->eeprom[i]);
6524
6525 return 0;
6526}
6527
6528static struct ethtool_ops ipw_ethtool_ops = {
6529 .get_link = ipw_ethtool_get_link,
6530 .get_drvinfo = ipw_ethtool_get_drvinfo,
6531 .get_eeprom_len = ipw_ethtool_get_eeprom_len,
6532 .get_eeprom = ipw_ethtool_get_eeprom,
6533 .set_eeprom = ipw_ethtool_set_eeprom,
6534};
6535
6536static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
6537{
6538 struct ipw_priv *priv = data;
6539 u32 inta, inta_mask;
Jeff Garzikbf794512005-07-31 13:07:26 -04006540
James Ketrenos43f66a62005-03-25 12:31:53 -06006541 if (!priv)
6542 return IRQ_NONE;
6543
6544 spin_lock(&priv->lock);
6545
6546 if (!(priv->status & STATUS_INT_ENABLED)) {
6547 /* Shared IRQ */
6548 goto none;
6549 }
6550
6551 inta = ipw_read32(priv, CX2_INTA_RW);
6552 inta_mask = ipw_read32(priv, CX2_INTA_MASK_R);
Jeff Garzikbf794512005-07-31 13:07:26 -04006553
James Ketrenos43f66a62005-03-25 12:31:53 -06006554 if (inta == 0xFFFFFFFF) {
6555 /* Hardware disappeared */
6556 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
6557 goto none;
6558 }
6559
6560 if (!(inta & (CX2_INTA_MASK_ALL & inta_mask))) {
6561 /* Shared interrupt */
6562 goto none;
6563 }
6564
6565 /* tell the device to stop sending interrupts */
6566 ipw_disable_interrupts(priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04006567
James Ketrenos43f66a62005-03-25 12:31:53 -06006568 /* ack current interrupts */
6569 inta &= (CX2_INTA_MASK_ALL & inta_mask);
6570 ipw_write32(priv, CX2_INTA_RW, inta);
Jeff Garzikbf794512005-07-31 13:07:26 -04006571
James Ketrenos43f66a62005-03-25 12:31:53 -06006572 /* Cache INTA value for our tasklet */
6573 priv->isr_inta = inta;
6574
6575 tasklet_schedule(&priv->irq_tasklet);
6576
6577 spin_unlock(&priv->lock);
6578
6579 return IRQ_HANDLED;
6580 none:
6581 spin_unlock(&priv->lock);
6582 return IRQ_NONE;
6583}
6584
6585static void ipw_rf_kill(void *adapter)
6586{
6587 struct ipw_priv *priv = adapter;
6588 unsigned long flags;
Jeff Garzikbf794512005-07-31 13:07:26 -04006589
James Ketrenos43f66a62005-03-25 12:31:53 -06006590 spin_lock_irqsave(&priv->lock, flags);
6591
6592 if (rf_kill_active(priv)) {
6593 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
6594 if (priv->workqueue)
6595 queue_delayed_work(priv->workqueue,
6596 &priv->rf_kill, 2 * HZ);
6597 goto exit_unlock;
6598 }
6599
6600 /* RF Kill is now disabled, so bring the device back up */
6601
6602 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6603 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6604 "device\n");
6605
6606 /* we can not do an adapter restart while inside an irq lock */
6607 queue_work(priv->workqueue, &priv->adapter_restart);
Jeff Garzikbf794512005-07-31 13:07:26 -04006608 } else
James Ketrenos43f66a62005-03-25 12:31:53 -06006609 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
6610 "enabled\n");
6611
6612 exit_unlock:
6613 spin_unlock_irqrestore(&priv->lock, flags);
6614}
6615
6616static int ipw_setup_deferred_work(struct ipw_priv *priv)
6617{
6618 int ret = 0;
6619
James Ketrenos43f66a62005-03-25 12:31:53 -06006620 priv->workqueue = create_workqueue(DRV_NAME);
James Ketrenos43f66a62005-03-25 12:31:53 -06006621 init_waitqueue_head(&priv->wait_command_queue);
6622
6623 INIT_WORK(&priv->adhoc_check, ipw_adhoc_check, priv);
6624 INIT_WORK(&priv->associate, ipw_associate, priv);
6625 INIT_WORK(&priv->disassociate, ipw_disassociate, priv);
6626 INIT_WORK(&priv->rx_replenish, ipw_rx_queue_replenish, priv);
6627 INIT_WORK(&priv->adapter_restart, ipw_adapter_restart, priv);
6628 INIT_WORK(&priv->rf_kill, ipw_rf_kill, priv);
6629 INIT_WORK(&priv->up, (void (*)(void *))ipw_up, priv);
6630 INIT_WORK(&priv->down, (void (*)(void *))ipw_down, priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04006631 INIT_WORK(&priv->request_scan,
James Ketrenos43f66a62005-03-25 12:31:53 -06006632 (void (*)(void *))ipw_request_scan, priv);
Jeff Garzikbf794512005-07-31 13:07:26 -04006633 INIT_WORK(&priv->gather_stats,
James Ketrenos43f66a62005-03-25 12:31:53 -06006634 (void (*)(void *))ipw_gather_stats, priv);
6635 INIT_WORK(&priv->abort_scan, (void (*)(void *))ipw_abort_scan, priv);
6636 INIT_WORK(&priv->roam, ipw_roam, priv);
6637 INIT_WORK(&priv->scan_check, ipw_scan_check, priv);
6638
6639 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6640 ipw_irq_tasklet, (unsigned long)priv);
6641
6642 return ret;
6643}
6644
6645
6646static void shim__set_security(struct net_device *dev,
6647 struct ieee80211_security *sec)
6648{
6649 struct ipw_priv *priv = ieee80211_priv(dev);
6650 int i;
6651
Jeff Garzikbf794512005-07-31 13:07:26 -04006652 for (i = 0; i < 4; i++) {
James Ketrenos43f66a62005-03-25 12:31:53 -06006653 if (sec->flags & (1 << i)) {
6654 priv->sec.key_sizes[i] = sec->key_sizes[i];
6655 if (sec->key_sizes[i] == 0)
6656 priv->sec.flags &= ~(1 << i);
6657 else
Jeff Garzikbf794512005-07-31 13:07:26 -04006658 memcpy(priv->sec.keys[i], sec->keys[i],
James Ketrenos43f66a62005-03-25 12:31:53 -06006659 sec->key_sizes[i]);
6660 priv->sec.flags |= (1 << i);
6661 priv->status |= STATUS_SECURITY_UPDATED;
Jeff Garzikbf794512005-07-31 13:07:26 -04006662 }
James Ketrenos43f66a62005-03-25 12:31:53 -06006663 }
6664
6665 if ((sec->flags & SEC_ACTIVE_KEY) &&
6666 priv->sec.active_key != sec->active_key) {
6667 if (sec->active_key <= 3) {
6668 priv->sec.active_key = sec->active_key;
6669 priv->sec.flags |= SEC_ACTIVE_KEY;
Jeff Garzikbf794512005-07-31 13:07:26 -04006670 } else
James Ketrenos43f66a62005-03-25 12:31:53 -06006671 priv->sec.flags &= ~SEC_ACTIVE_KEY;
6672 priv->status |= STATUS_SECURITY_UPDATED;
6673 }
6674
6675 if ((sec->flags & SEC_AUTH_MODE) &&
6676 (priv->sec.auth_mode != sec->auth_mode)) {
6677 priv->sec.auth_mode = sec->auth_mode;
6678 priv->sec.flags |= SEC_AUTH_MODE;
6679 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
6680 priv->capability |= CAP_SHARED_KEY;
6681 else
6682 priv->capability &= ~CAP_SHARED_KEY;
6683 priv->status |= STATUS_SECURITY_UPDATED;
6684 }
Jeff Garzikbf794512005-07-31 13:07:26 -04006685
James Ketrenos43f66a62005-03-25 12:31:53 -06006686 if (sec->flags & SEC_ENABLED &&
6687 priv->sec.enabled != sec->enabled) {
6688 priv->sec.flags |= SEC_ENABLED;
6689 priv->sec.enabled = sec->enabled;
6690 priv->status |= STATUS_SECURITY_UPDATED;
Jeff Garzikbf794512005-07-31 13:07:26 -04006691 if (sec->enabled)
James Ketrenos43f66a62005-03-25 12:31:53 -06006692 priv->capability |= CAP_PRIVACY_ON;
6693 else
6694 priv->capability &= ~CAP_PRIVACY_ON;
6695 }
Jeff Garzikbf794512005-07-31 13:07:26 -04006696
James Ketrenos43f66a62005-03-25 12:31:53 -06006697 if (sec->flags & SEC_LEVEL &&
6698 priv->sec.level != sec->level) {
6699 priv->sec.level = sec->level;
6700 priv->sec.flags |= SEC_LEVEL;
6701 priv->status |= STATUS_SECURITY_UPDATED;
6702 }
6703
Jeff Garzikbf794512005-07-31 13:07:26 -04006704 /* To match current functionality of ipw2100 (which works well w/
6705 * various supplicants, we don't force a disassociate if the
James Ketrenos43f66a62005-03-25 12:31:53 -06006706 * privacy capability changes ... */
6707#if 0
6708 if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
Jeff Garzikbf794512005-07-31 13:07:26 -04006709 (((priv->assoc_request.capability &
James Ketrenos43f66a62005-03-25 12:31:53 -06006710 WLAN_CAPABILITY_PRIVACY) && !sec->enabled) ||
Jeff Garzikbf794512005-07-31 13:07:26 -04006711 (!(priv->assoc_request.capability &
James Ketrenos43f66a62005-03-25 12:31:53 -06006712 WLAN_CAPABILITY_PRIVACY) && sec->enabled))) {
6713 IPW_DEBUG_ASSOC("Disassociating due to capability "
6714 "change.\n");
6715 ipw_disassociate(priv);
6716 }
6717#endif
6718}
6719
Jeff Garzikbf794512005-07-31 13:07:26 -04006720static int init_supported_rates(struct ipw_priv *priv,
James Ketrenos43f66a62005-03-25 12:31:53 -06006721 struct ipw_supported_rates *rates)
6722{
6723 /* TODO: Mask out rates based on priv->rates_mask */
6724
6725 memset(rates, 0, sizeof(*rates));
6726 /* configure supported rates */
6727 switch (priv->ieee->freq_band) {
6728 case IEEE80211_52GHZ_BAND:
6729 rates->ieee_mode = IPW_A_MODE;
6730 rates->purpose = IPW_RATE_CAPABILITIES;
6731 ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
6732 IEEE80211_OFDM_DEFAULT_RATES_MASK);
6733 break;
6734
6735 default: /* Mixed or 2.4Ghz */
6736 rates->ieee_mode = IPW_G_MODE;
6737 rates->purpose = IPW_RATE_CAPABILITIES;
6738 ipw_add_cck_scan_rates(rates, IEEE80211_CCK_MODULATION,
6739 IEEE80211_CCK_DEFAULT_RATES_MASK);
6740 if (priv->ieee->modulation & IEEE80211_OFDM_MODULATION) {
6741 ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
6742 IEEE80211_OFDM_DEFAULT_RATES_MASK);
6743 }
6744 break;
6745 }
6746
6747 return 0;
6748}
6749
Jeff Garzikbf794512005-07-31 13:07:26 -04006750static int ipw_config(struct ipw_priv *priv)
James Ketrenos43f66a62005-03-25 12:31:53 -06006751{
6752 int i;
6753 struct ipw_tx_power tx_power;
6754
6755 memset(&priv->sys_config, 0, sizeof(priv->sys_config));
6756 memset(&tx_power, 0, sizeof(tx_power));
6757
6758 /* This is only called from ipw_up, which resets/reloads the firmware
6759 so, we don't need to first disable the card before we configure
6760 it */
6761
6762 /* configure device for 'G' band */
6763 tx_power.ieee_mode = IPW_G_MODE;
6764 tx_power.num_channels = 11;
6765 for (i = 0; i < 11; i++) {
6766 tx_power.channels_tx_power[i].channel_number = i + 1;
6767 tx_power.channels_tx_power[i].tx_power = priv->tx_power;
6768 }
6769 if (ipw_send_tx_power(priv, &tx_power))
6770 goto error;
6771
6772 /* configure device to also handle 'B' band */
6773 tx_power.ieee_mode = IPW_B_MODE;
6774 if (ipw_send_tx_power(priv, &tx_power))
6775 goto error;
6776
6777 /* initialize adapter address */
6778 if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
6779 goto error;
6780
6781 /* set basic system config settings */
6782 init_sys_config(&priv->sys_config);
6783 if (ipw_send_system_config(priv, &priv->sys_config))
6784 goto error;
6785
6786 init_supported_rates(priv, &priv->rates);
6787 if (ipw_send_supported_rates(priv, &priv->rates))
6788 goto error;
6789
6790 /* Set request-to-send threshold */
6791 if (priv->rts_threshold) {
6792 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
6793 goto error;
6794 }
6795
6796 if (ipw_set_random_seed(priv))
6797 goto error;
Jeff Garzikbf794512005-07-31 13:07:26 -04006798
James Ketrenos43f66a62005-03-25 12:31:53 -06006799 /* final state transition to the RUN state */
6800 if (ipw_send_host_complete(priv))
6801 goto error;
6802
6803 /* If configured to try and auto-associate, kick off a scan */
6804 if ((priv->config & CFG_ASSOCIATE) && ipw_request_scan(priv))
6805 goto error;
6806
6807 return 0;
Jeff Garzikbf794512005-07-31 13:07:26 -04006808
James Ketrenos43f66a62005-03-25 12:31:53 -06006809 error:
6810 return -EIO;
6811}
6812
6813#define MAX_HW_RESTARTS 5
6814static int ipw_up(struct ipw_priv *priv)
6815{
6816 int rc, i;
6817
6818 if (priv->status & STATUS_EXIT_PENDING)
6819 return -EIO;
6820
6821 for (i = 0; i < MAX_HW_RESTARTS; i++ ) {
Jeff Garzikbf794512005-07-31 13:07:26 -04006822 /* Load the microcode, firmware, and eeprom.
James Ketrenos43f66a62005-03-25 12:31:53 -06006823 * Also start the clocks. */
6824 rc = ipw_load(priv);
6825 if (rc) {
6826 IPW_ERROR("Unable to load firmware: 0x%08X\n",
6827 rc);
6828 return rc;
6829 }
6830
6831 ipw_init_ordinals(priv);
6832 if (!(priv->config & CFG_CUSTOM_MAC))
6833 eeprom_parse_mac(priv, priv->mac_addr);
6834 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
6835
6836 if (priv->status & STATUS_RF_KILL_MASK)
6837 return 0;
6838
6839 rc = ipw_config(priv);
6840 if (!rc) {
6841 IPW_DEBUG_INFO("Configured device on count %i\n", i);
6842 priv->notif_missed_beacons = 0;
6843 netif_start_queue(priv->net_dev);
6844 return 0;
6845 } else {
6846 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n",
6847 rc);
6848 }
Jeff Garzikbf794512005-07-31 13:07:26 -04006849
James Ketrenos43f66a62005-03-25 12:31:53 -06006850 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
6851 i, MAX_HW_RESTARTS);
6852
6853 /* We had an error bringing up the hardware, so take it
6854 * all the way back down so we can try again */
6855 ipw_down(priv);
6856 }
6857
Jeff Garzikbf794512005-07-31 13:07:26 -04006858 /* tried to restart and config the device for as long as our
James Ketrenos43f66a62005-03-25 12:31:53 -06006859 * patience could withstand */
6860 IPW_ERROR("Unable to initialize device after %d attempts.\n",
6861 i);
6862 return -EIO;
6863}
6864
6865static void ipw_down(struct ipw_priv *priv)
6866{
6867 /* Attempt to disable the card */
6868#if 0
6869 ipw_send_card_disable(priv, 0);
6870#endif
6871
6872 /* tell the device to stop sending interrupts */
6873 ipw_disable_interrupts(priv);
6874
6875 /* Clear all bits but the RF Kill */
6876 priv->status &= STATUS_RF_KILL_MASK;
6877
6878 netif_carrier_off(priv->net_dev);
6879 netif_stop_queue(priv->net_dev);
6880
6881 ipw_stop_nic(priv);
6882}
6883
6884/* Called by register_netdev() */
6885static int ipw_net_init(struct net_device *dev)
6886{
6887 struct ipw_priv *priv = ieee80211_priv(dev);
6888
6889 if (priv->status & STATUS_RF_KILL_SW) {
6890 IPW_WARNING("Radio disabled by module parameter.\n");
6891 return 0;
6892 } else if (rf_kill_active(priv)) {
6893 IPW_WARNING("Radio Frequency Kill Switch is On:\n"
6894 "Kill switch must be turned off for "
6895 "wireless networking to work.\n");
6896 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
6897 return 0;
6898 }
6899
6900 if (ipw_up(priv))
6901 return -EIO;
6902
6903 return 0;
6904}
6905
6906/* PCI driver stuff */
6907static struct pci_device_id card_ids[] = {
6908 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
6909 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
6910 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
6911 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
6912 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
6913 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
6914 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
6915 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
6916 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
6917 {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
6918 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
6919 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
6920 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
6921 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
6922 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
6923 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
6924 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
6925 {PCI_VENDOR_ID_INTEL, 0x104f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
6926 {PCI_VENDOR_ID_INTEL, 0x4220, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
6927 {PCI_VENDOR_ID_INTEL, 0x4221, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 2225BG */
6928 {PCI_VENDOR_ID_INTEL, 0x4223, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
6929 {PCI_VENDOR_ID_INTEL, 0x4224, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
Jeff Garzikbf794512005-07-31 13:07:26 -04006930
James Ketrenos43f66a62005-03-25 12:31:53 -06006931 /* required last entry */
6932 {0,}
6933};
6934
6935MODULE_DEVICE_TABLE(pci, card_ids);
6936
6937static struct attribute *ipw_sysfs_entries[] = {
6938 &dev_attr_rf_kill.attr,
6939 &dev_attr_direct_dword.attr,
6940 &dev_attr_indirect_byte.attr,
6941 &dev_attr_indirect_dword.attr,
6942 &dev_attr_mem_gpio_reg.attr,
6943 &dev_attr_command_event_reg.attr,
6944 &dev_attr_nic_type.attr,
6945 &dev_attr_status.attr,
6946 &dev_attr_cfg.attr,
6947 &dev_attr_dump_errors.attr,
6948 &dev_attr_dump_events.attr,
6949 &dev_attr_eeprom_delay.attr,
6950 &dev_attr_ucode_version.attr,
6951 &dev_attr_rtc.attr,
6952 NULL
6953};
6954
6955static struct attribute_group ipw_attribute_group = {
6956 .name = NULL, /* put in device directory */
6957 .attrs = ipw_sysfs_entries,
6958};
6959
6960static int ipw_pci_probe(struct pci_dev *pdev,
6961 const struct pci_device_id *ent)
6962{
6963 int err = 0;
6964 struct net_device *net_dev;
6965 void __iomem *base;
6966 u32 length, val;
6967 struct ipw_priv *priv;
6968 int band, modulation;
6969
6970 net_dev = alloc_ieee80211(sizeof(struct ipw_priv));
6971 if (net_dev == NULL) {
6972 err = -ENOMEM;
6973 goto out;
6974 }
6975
6976 priv = ieee80211_priv(net_dev);
6977 priv->ieee = netdev_priv(net_dev);
6978 priv->net_dev = net_dev;
6979 priv->pci_dev = pdev;
6980#ifdef CONFIG_IPW_DEBUG
6981 ipw_debug_level = debug;
6982#endif
6983 spin_lock_init(&priv->lock);
6984
6985 if (pci_enable_device(pdev)) {
6986 err = -ENODEV;
6987 goto out_free_ieee80211;
6988 }
6989
6990 pci_set_master(pdev);
6991
Tobias Klauser0e08b442005-06-20 14:28:41 -07006992 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
Jeff Garzikbf794512005-07-31 13:07:26 -04006993 if (!err)
Tobias Klauser0e08b442005-06-20 14:28:41 -07006994 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
James Ketrenos43f66a62005-03-25 12:31:53 -06006995 if (err) {
6996 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
6997 goto out_pci_disable_device;
6998 }
6999
7000 pci_set_drvdata(pdev, priv);
7001
7002 err = pci_request_regions(pdev, DRV_NAME);
Jeff Garzikbf794512005-07-31 13:07:26 -04007003 if (err)
James Ketrenos43f66a62005-03-25 12:31:53 -06007004 goto out_pci_disable_device;
7005
Jeff Garzikbf794512005-07-31 13:07:26 -04007006 /* We disable the RETRY_TIMEOUT register (0x41) to keep
James Ketrenos43f66a62005-03-25 12:31:53 -06007007 * PCI Tx retries from interfering with C3 CPU state */
Jeff Garzikbf794512005-07-31 13:07:26 -04007008 pci_read_config_dword(pdev, 0x40, &val);
7009 if ((val & 0x0000ff00) != 0)
James Ketrenos43f66a62005-03-25 12:31:53 -06007010 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
Jeff Garzikbf794512005-07-31 13:07:26 -04007011
James Ketrenos43f66a62005-03-25 12:31:53 -06007012 length = pci_resource_len(pdev, 0);
7013 priv->hw_len = length;
Jeff Garzikbf794512005-07-31 13:07:26 -04007014
James Ketrenos43f66a62005-03-25 12:31:53 -06007015 base = ioremap_nocache(pci_resource_start(pdev, 0), length);
7016 if (!base) {
7017 err = -ENODEV;
7018 goto out_pci_release_regions;
7019 }
7020
7021 priv->hw_base = base;
7022 IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
7023 IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
7024
7025 err = ipw_setup_deferred_work(priv);
7026 if (err) {
7027 IPW_ERROR("Unable to setup deferred work\n");
7028 goto out_iounmap;
7029 }
7030
7031 /* Initialize module parameter values here */
7032 if (ifname)
7033 strncpy(net_dev->name, ifname, IFNAMSIZ);
7034
Jeff Garzikbf794512005-07-31 13:07:26 -04007035 if (associate)
James Ketrenos43f66a62005-03-25 12:31:53 -06007036 priv->config |= CFG_ASSOCIATE;
7037 else
7038 IPW_DEBUG_INFO("Auto associate disabled.\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04007039
7040 if (auto_create)
James Ketrenos43f66a62005-03-25 12:31:53 -06007041 priv->config |= CFG_ADHOC_CREATE;
7042 else
7043 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04007044
James Ketrenos43f66a62005-03-25 12:31:53 -06007045 if (disable) {
7046 priv->status |= STATUS_RF_KILL_SW;
7047 IPW_DEBUG_INFO("Radio disabled.\n");
7048 }
7049
7050 if (channel != 0) {
7051 priv->config |= CFG_STATIC_CHANNEL;
7052 priv->channel = channel;
7053 IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
7054 IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
7055 /* TODO: Validate that provided channel is in range */
7056 }
7057
7058 switch (mode) {
7059 case 1:
7060 priv->ieee->iw_mode = IW_MODE_ADHOC;
7061 break;
Jeff Garzikbf794512005-07-31 13:07:26 -04007062#ifdef CONFIG_IPW_PROMISC
James Ketrenos43f66a62005-03-25 12:31:53 -06007063 case 2:
7064 priv->ieee->iw_mode = IW_MODE_MONITOR;
7065 break;
7066#endif
7067 default:
7068 case 0:
7069 priv->ieee->iw_mode = IW_MODE_INFRA;
7070 break;
7071 }
7072
7073 if ((priv->pci_dev->device == 0x4223) ||
7074 (priv->pci_dev->device == 0x4224)) {
Jeff Garzikbf794512005-07-31 13:07:26 -04007075 printk(KERN_INFO DRV_NAME
James Ketrenos43f66a62005-03-25 12:31:53 -06007076 ": Detected Intel PRO/Wireless 2915ABG Network "
7077 "Connection\n");
7078 priv->ieee->abg_ture = 1;
7079 band = IEEE80211_52GHZ_BAND | IEEE80211_24GHZ_BAND;
7080 modulation = IEEE80211_OFDM_MODULATION |
7081 IEEE80211_CCK_MODULATION;
7082 priv->adapter = IPW_2915ABG;
7083 priv->ieee->mode = IEEE_A|IEEE_G|IEEE_B;
7084 } else {
Jeff Garzikbf794512005-07-31 13:07:26 -04007085 if (priv->pci_dev->device == 0x4221)
7086 printk(KERN_INFO DRV_NAME
James Ketrenos43f66a62005-03-25 12:31:53 -06007087 ": Detected Intel PRO/Wireless 2225BG Network "
7088 "Connection\n");
7089 else
Jeff Garzikbf794512005-07-31 13:07:26 -04007090 printk(KERN_INFO DRV_NAME
James Ketrenos43f66a62005-03-25 12:31:53 -06007091 ": Detected Intel PRO/Wireless 2200BG Network "
7092 "Connection\n");
Jeff Garzikbf794512005-07-31 13:07:26 -04007093
James Ketrenos43f66a62005-03-25 12:31:53 -06007094 priv->ieee->abg_ture = 0;
7095 band = IEEE80211_24GHZ_BAND;
7096 modulation = IEEE80211_OFDM_MODULATION |
7097 IEEE80211_CCK_MODULATION;
7098 priv->adapter = IPW_2200BG;
7099 priv->ieee->mode = IEEE_G|IEEE_B;
7100 }
7101
7102 priv->ieee->freq_band = band;
7103 priv->ieee->modulation = modulation;
7104
7105 priv->rates_mask = IEEE80211_DEFAULT_RATES_MASK;
7106
7107 priv->missed_beacon_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
7108 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
7109
7110 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
7111
7112 /* If power management is turned on, default to AC mode */
7113 priv->power_mode = IPW_POWER_AC;
7114 priv->tx_power = IPW_DEFAULT_TX_POWER;
7115
Jeff Garzikbf794512005-07-31 13:07:26 -04007116 err = request_irq(pdev->irq, ipw_isr, SA_SHIRQ, DRV_NAME,
James Ketrenos43f66a62005-03-25 12:31:53 -06007117 priv);
7118 if (err) {
7119 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
7120 goto out_destroy_workqueue;
7121 }
7122
7123 SET_MODULE_OWNER(net_dev);
7124 SET_NETDEV_DEV(net_dev, &pdev->dev);
7125
7126 priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
7127 priv->ieee->set_security = shim__set_security;
7128
7129 net_dev->open = ipw_net_open;
7130 net_dev->stop = ipw_net_stop;
7131 net_dev->init = ipw_net_init;
7132 net_dev->get_stats = ipw_net_get_stats;
7133 net_dev->set_multicast_list = ipw_net_set_multicast_list;
7134 net_dev->set_mac_address = ipw_net_set_mac_address;
7135 net_dev->get_wireless_stats = ipw_get_wireless_stats;
7136 net_dev->wireless_handlers = &ipw_wx_handler_def;
7137 net_dev->ethtool_ops = &ipw_ethtool_ops;
7138 net_dev->irq = pdev->irq;
7139 net_dev->base_addr = (unsigned long )priv->hw_base;
7140 net_dev->mem_start = pci_resource_start(pdev, 0);
7141 net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1;
7142
7143 err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
7144 if (err) {
7145 IPW_ERROR("failed to create sysfs device attributes\n");
7146 goto out_release_irq;
7147 }
7148
7149 err = register_netdev(net_dev);
7150 if (err) {
7151 IPW_ERROR("failed to register network device\n");
7152 goto out_remove_group;
7153 }
7154
7155 return 0;
7156
7157 out_remove_group:
7158 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
7159 out_release_irq:
7160 free_irq(pdev->irq, priv);
7161 out_destroy_workqueue:
7162 destroy_workqueue(priv->workqueue);
7163 priv->workqueue = NULL;
7164 out_iounmap:
7165 iounmap(priv->hw_base);
7166 out_pci_release_regions:
7167 pci_release_regions(pdev);
7168 out_pci_disable_device:
7169 pci_disable_device(pdev);
7170 pci_set_drvdata(pdev, NULL);
7171 out_free_ieee80211:
7172 free_ieee80211(priv->net_dev);
7173 out:
7174 return err;
7175}
7176
7177static void ipw_pci_remove(struct pci_dev *pdev)
7178{
7179 struct ipw_priv *priv = pci_get_drvdata(pdev);
7180 if (!priv)
7181 return;
7182
7183 priv->status |= STATUS_EXIT_PENDING;
7184
7185 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
7186
7187 ipw_down(priv);
7188
7189 unregister_netdev(priv->net_dev);
7190
7191 if (priv->rxq) {
7192 ipw_rx_queue_free(priv, priv->rxq);
7193 priv->rxq = NULL;
7194 }
7195 ipw_tx_queue_free(priv);
7196
7197 /* ipw_down will ensure that there is no more pending work
7198 * in the workqueue's, so we can safely remove them now. */
Jeff Garzikbf794512005-07-31 13:07:26 -04007199 if (priv->workqueue) {
James Ketrenos43f66a62005-03-25 12:31:53 -06007200 cancel_delayed_work(&priv->adhoc_check);
7201 cancel_delayed_work(&priv->gather_stats);
7202 cancel_delayed_work(&priv->request_scan);
7203 cancel_delayed_work(&priv->rf_kill);
7204 cancel_delayed_work(&priv->scan_check);
7205 destroy_workqueue(priv->workqueue);
7206 priv->workqueue = NULL;
7207 }
7208
7209 free_irq(pdev->irq, priv);
7210 iounmap(priv->hw_base);
7211 pci_release_regions(pdev);
7212 pci_disable_device(pdev);
7213 pci_set_drvdata(pdev, NULL);
7214 free_ieee80211(priv->net_dev);
7215
7216#ifdef CONFIG_PM
7217 if (fw_loaded) {
7218 release_firmware(bootfw);
7219 release_firmware(ucode);
7220 release_firmware(firmware);
7221 fw_loaded = 0;
7222 }
7223#endif
7224}
7225
7226
7227#ifdef CONFIG_PM
Pavel Machek583a4e82005-09-03 15:56:58 -07007228static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
James Ketrenos43f66a62005-03-25 12:31:53 -06007229{
7230 struct ipw_priv *priv = pci_get_drvdata(pdev);
7231 struct net_device *dev = priv->net_dev;
7232
7233 printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
7234
7235 /* Take down the device; powers it off, etc. */
7236 ipw_down(priv);
7237
7238 /* Remove the PRESENT state of the device */
7239 netif_device_detach(dev);
7240
James Ketrenos43f66a62005-03-25 12:31:53 -06007241 pci_save_state(pdev);
James Ketrenos43f66a62005-03-25 12:31:53 -06007242 pci_disable_device(pdev);
Pavel Machek583a4e82005-09-03 15:56:58 -07007243 pci_set_power_state(pdev, pci_choose_state(pdev, state));
Jeff Garzikbf794512005-07-31 13:07:26 -04007244
James Ketrenos43f66a62005-03-25 12:31:53 -06007245 return 0;
7246}
7247
7248static int ipw_pci_resume(struct pci_dev *pdev)
7249{
7250 struct ipw_priv *priv = pci_get_drvdata(pdev);
7251 struct net_device *dev = priv->net_dev;
7252 u32 val;
Jeff Garzikbf794512005-07-31 13:07:26 -04007253
James Ketrenos43f66a62005-03-25 12:31:53 -06007254 printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
7255
7256 pci_set_power_state(pdev, 0);
7257 pci_enable_device(pdev);
7258#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
7259 pci_restore_state(pdev, priv->pm_state);
7260#else
7261 pci_restore_state(pdev);
7262#endif
7263 /*
7264 * Suspend/Resume resets the PCI configuration space, so we have to
7265 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
7266 * from interfering with C3 CPU state. pci_restore_state won't help
7267 * here since it only restores the first 64 bytes pci config header.
7268 */
Jeff Garzikbf794512005-07-31 13:07:26 -04007269 pci_read_config_dword(pdev, 0x40, &val);
7270 if ((val & 0x0000ff00) != 0)
James Ketrenos43f66a62005-03-25 12:31:53 -06007271 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
7272
7273 /* Set the device back into the PRESENT state; this will also wake
7274 * the queue of needed */
7275 netif_device_attach(dev);
7276
7277 /* Bring the device back up */
7278 queue_work(priv->workqueue, &priv->up);
Jeff Garzikbf794512005-07-31 13:07:26 -04007279
James Ketrenos43f66a62005-03-25 12:31:53 -06007280 return 0;
7281}
7282#endif
7283
7284/* driver initialization stuff */
7285static struct pci_driver ipw_driver = {
7286 .name = DRV_NAME,
7287 .id_table = card_ids,
7288 .probe = ipw_pci_probe,
7289 .remove = __devexit_p(ipw_pci_remove),
7290#ifdef CONFIG_PM
7291 .suspend = ipw_pci_suspend,
7292 .resume = ipw_pci_resume,
7293#endif
7294};
7295
7296static int __init ipw_init(void)
7297{
7298 int ret;
7299
7300 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
7301 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
7302
7303 ret = pci_module_init(&ipw_driver);
7304 if (ret) {
7305 IPW_ERROR("Unable to initialize PCI module\n");
7306 return ret;
7307 }
7308
Jeff Garzikbf794512005-07-31 13:07:26 -04007309 ret = driver_create_file(&ipw_driver.driver,
James Ketrenos43f66a62005-03-25 12:31:53 -06007310 &driver_attr_debug_level);
7311 if (ret) {
7312 IPW_ERROR("Unable to create driver sysfs file\n");
7313 pci_unregister_driver(&ipw_driver);
7314 return ret;
7315 }
7316
7317 return ret;
7318}
7319
7320static void __exit ipw_exit(void)
7321{
7322 driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
7323 pci_unregister_driver(&ipw_driver);
7324}
7325
7326module_param(disable, int, 0444);
7327MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
7328
7329module_param(associate, int, 0444);
7330MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
7331
7332module_param(auto_create, int, 0444);
7333MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
7334
7335module_param(debug, int, 0444);
7336MODULE_PARM_DESC(debug, "debug output mask");
7337
7338module_param(channel, int, 0444);
Jeff Garzikbf794512005-07-31 13:07:26 -04007339MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
James Ketrenos43f66a62005-03-25 12:31:53 -06007340
7341module_param(ifname, charp, 0444);
7342MODULE_PARM_DESC(ifname, "network device name (default eth%d)");
7343
Jeff Garzikbf794512005-07-31 13:07:26 -04007344#ifdef CONFIG_IPW_PROMISC
James Ketrenos43f66a62005-03-25 12:31:53 -06007345module_param(mode, int, 0444);
7346MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
7347#else
7348module_param(mode, int, 0444);
7349MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
7350#endif
7351
7352module_exit(ipw_exit);
7353module_init(ipw_init);