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Dominik Brodowski1a8d4662005-06-27 16:28:53 -07001/*
2 * PCMCIA 16-bit resource management functions
3 *
4 * The initial developer of the original code is David A. Hinds
5 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
6 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
7 *
8 * Copyright (C) 1999 David A. Hinds
9 * Copyright (C) 2004-2005 Dominik Brodowski
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 *
15 */
16
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070017#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/interrupt.h>
20#include <linux/delay.h>
21#include <linux/pci.h>
22#include <linux/device.h>
23
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070024#include <pcmcia/cs_types.h>
25#include <pcmcia/ss.h>
26#include <pcmcia/cs.h>
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070027#include <pcmcia/cistpl.h>
28#include <pcmcia/cisreg.h>
29#include <pcmcia/ds.h>
30
31#include "cs_internal.h"
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070032
33
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070034/* Access speed for IO windows */
35static int io_speed = 0;
36module_param(io_speed, int, 0444);
37
38
39#ifdef CONFIG_PCMCIA_PROBE
Al Viro531e5ca2005-08-23 22:47:01 +010040#include <asm/irq.h>
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070041/* mask of IRQs already reserved by other cards, we should avoid using them */
42static u8 pcmcia_used_irq[NR_IRQS];
43#endif
44
45
Dominik Brodowski7d16b652008-08-02 21:02:01 +020046#ifdef CONFIG_PCMCIA_DEBUG
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070047extern int ds_pc_debug;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070048
49#define ds_dbg(skt, lvl, fmt, arg...) do { \
50 if (ds_pc_debug >= lvl) \
Dominik Brodowskiac449d62008-08-02 18:33:56 +020051 dev_printk(KERN_DEBUG, &skt->dev, \
52 "pcmcia_resource: " fmt, \
53 ## arg); \
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070054} while (0)
55#else
Dominik Brodowskiac449d62008-08-02 18:33:56 +020056#define ds_dbg(skt, lvl, fmt, arg...) do { } while (0)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070057#endif
58
59
60
61/** alloc_io_space
62 *
63 * Special stuff for managing IO windows, because they are scarce
64 */
65
Olof Johanssonecb8a842008-02-04 22:27:34 -080066static int alloc_io_space(struct pcmcia_socket *s, u_int attr,
67 unsigned int *base, unsigned int num, u_int lines)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070068{
69 int i;
Olof Johanssonecb8a842008-02-04 22:27:34 -080070 unsigned int try, align;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070071
72 align = (*base) ? (lines ? 1<<lines : 0) : 1;
73 if (align && (align < num)) {
74 if (*base) {
Olof Johanssonecb8a842008-02-04 22:27:34 -080075 ds_dbg(s, 0, "odd IO request: num %#x align %#x\n",
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070076 num, align);
77 align = 0;
78 } else
79 while (align && (align < num)) align <<= 1;
80 }
81 if (*base & ~(align-1)) {
Olof Johanssonecb8a842008-02-04 22:27:34 -080082 ds_dbg(s, 0, "odd IO request: base %#x align %#x\n",
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070083 *base, align);
84 align = 0;
85 }
86 if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) {
87 *base = s->io_offset | (*base & 0x0fff);
88 return 0;
89 }
90 /* Check for an already-allocated window that must conflict with
91 * what was asked for. It is a hack because it does not catch all
92 * potential conflicts, just the most obvious ones.
93 */
94 for (i = 0; i < MAX_IO_WIN; i++)
Kaustav Majumdar4708b5f2006-10-20 14:44:09 -070095 if ((s->io[i].res) && *base &&
Dominik Brodowskic7d00692006-01-15 08:04:43 +010096 ((s->io[i].res->start & (align-1)) == *base))
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070097 return 1;
98 for (i = 0; i < MAX_IO_WIN; i++) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +010099 if (!s->io[i].res) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700100 s->io[i].res = pcmcia_find_io_region(*base, num, align, s);
101 if (s->io[i].res) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100102 *base = s->io[i].res->start;
103 s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS);
104 s->io[i].InUse = num;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700105 break;
106 } else
107 return 1;
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100108 } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS))
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700109 continue;
110 /* Try to extend top of window */
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100111 try = s->io[i].res->end + 1;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700112 if ((*base == 0) || (*base == try))
113 if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start,
114 s->io[i].res->end + num, s) == 0) {
115 *base = try;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700116 s->io[i].InUse += num;
117 break;
118 }
119 /* Try to extend bottom of window */
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100120 try = s->io[i].res->start - num;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700121 if ((*base == 0) || (*base == try))
122 if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num,
123 s->io[i].res->end, s) == 0) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100124 *base = try;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700125 s->io[i].InUse += num;
126 break;
127 }
128 }
129 return (i == MAX_IO_WIN);
130} /* alloc_io_space */
131
132
Olof Johanssonecb8a842008-02-04 22:27:34 -0800133static void release_io_space(struct pcmcia_socket *s, unsigned int base,
134 unsigned int num)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700135{
136 int i;
137
138 for (i = 0; i < MAX_IO_WIN; i++) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100139 if (!s->io[i].res)
140 continue;
141 if ((s->io[i].res->start <= base) &&
142 (s->io[i].res->end >= base+num-1)) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700143 s->io[i].InUse -= num;
144 /* Free the window if no one else is using it */
145 if (s->io[i].InUse == 0) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700146 release_resource(s->io[i].res);
147 kfree(s->io[i].res);
148 s->io[i].res = NULL;
149 }
150 }
151 }
152} /* release_io_space */
153
154
155/** pccard_access_configuration_register
156 *
157 * Access_configuration_register() reads and writes configuration
158 * registers in attribute memory. Memory window 0 is reserved for
159 * this and the tuple reading services.
160 */
161
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100162int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700163 conf_reg_t *reg)
164{
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100165 struct pcmcia_socket *s;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700166 config_t *c;
167 int addr;
168 u_char val;
169
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100170 if (!p_dev || !p_dev->function_config)
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200171 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700172
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100173 s = p_dev->socket;
174 c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700175
176 if (!(c->state & CONFIG_LOCKED))
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200177 return -EACCES;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700178
179 addr = (c->ConfigBase + reg->Offset) >> 1;
180
181 switch (reg->Action) {
182 case CS_READ:
183 pcmcia_read_cis_mem(s, 1, addr, 1, &val);
184 reg->Value = val;
185 break;
186 case CS_WRITE:
187 val = reg->Value;
188 pcmcia_write_cis_mem(s, 1, addr, 1, &val);
189 break;
190 default:
Dominik Brodowski926c5402008-08-03 12:15:11 +0200191 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700192 break;
193 }
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200194 return 0;
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100195} /* pcmcia_access_configuration_register */
Dominik Brodowski34481392005-06-27 16:28:54 -0700196EXPORT_SYMBOL(pcmcia_access_configuration_register);
197
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700198
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700199/** pcmcia_get_window
200 */
201int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle,
202 int idx, win_req_t *req)
203{
204 window_t *win;
205 int w;
206
207 if (!s || !(s->state & SOCKET_PRESENT))
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200208 return -ENODEV;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700209 for (w = idx; w < MAX_WIN; w++)
210 if (s->state & SOCKET_WIN_REQ(w))
211 break;
212 if (w == MAX_WIN)
Dominik Brodowski635d19b2008-08-03 11:47:29 +0200213 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700214 win = &s->win[w];
215 req->Base = win->ctl.res->start;
216 req->Size = win->ctl.res->end - win->ctl.res->start + 1;
217 req->AccessSpeed = win->ctl.speed;
218 req->Attributes = 0;
219 if (win->ctl.flags & MAP_ATTRIB)
220 req->Attributes |= WIN_MEMORY_TYPE_AM;
221 if (win->ctl.flags & MAP_ACTIVE)
222 req->Attributes |= WIN_ENABLE;
223 if (win->ctl.flags & MAP_16BIT)
224 req->Attributes |= WIN_DATA_WIDTH_16;
225 if (win->ctl.flags & MAP_USE_WAIT)
226 req->Attributes |= WIN_USE_WAIT;
227 *handle = win;
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200228 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700229} /* pcmcia_get_window */
230EXPORT_SYMBOL(pcmcia_get_window);
231
232
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700233/** pcmcia_get_mem_page
234 *
235 * Change the card address of an already open memory window.
236 */
237int pcmcia_get_mem_page(window_handle_t win, memreq_t *req)
238{
239 if ((win == NULL) || (win->magic != WINDOW_MAGIC))
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200240 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700241 req->Page = 0;
242 req->CardOffset = win->ctl.card_start;
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200243 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700244} /* pcmcia_get_mem_page */
245EXPORT_SYMBOL(pcmcia_get_mem_page);
246
247
248int pcmcia_map_mem_page(window_handle_t win, memreq_t *req)
249{
250 struct pcmcia_socket *s;
251 if ((win == NULL) || (win->magic != WINDOW_MAGIC))
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200252 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700253 s = win->sock;
Dominik Brodowski610e2372008-08-03 11:58:53 +0200254 if (req->Page != 0) {
255 ds_dbg(s, 0, "failure: requested page is zero\n");
256 return -EINVAL;
257 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700258 win->ctl.card_start = req->CardOffset;
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200259 if (s->ops->set_mem_map(s, &win->ctl) != 0) {
260 ds_dbg(s, 0, "failed to set_mem_map\n");
261 return -EIO;
262 }
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200263 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700264} /* pcmcia_map_mem_page */
265EXPORT_SYMBOL(pcmcia_map_mem_page);
266
267
268/** pcmcia_modify_configuration
269 *
270 * Modify a locked socket configuration
271 */
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700272int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700273 modconf_t *mod)
274{
275 struct pcmcia_socket *s;
276 config_t *c;
277
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700278 s = p_dev->socket;
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100279 c = p_dev->function_config;
280
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700281 if (!(s->state & SOCKET_PRESENT))
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200282 return -ENODEV;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700283 if (!(c->state & CONFIG_LOCKED))
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200284 return -EACCES;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700285
286 if (mod->Attributes & CONF_IRQ_CHANGE_VALID) {
287 if (mod->Attributes & CONF_ENABLE_IRQ) {
288 c->Attributes |= CONF_ENABLE_IRQ;
289 s->socket.io_irq = s->irq.AssignedIRQ;
290 } else {
291 c->Attributes &= ~CONF_ENABLE_IRQ;
292 s->socket.io_irq = 0;
293 }
294 s->ops->set_socket(s, &s->socket);
295 }
296
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200297 if (mod->Attributes & CONF_VCC_CHANGE_VALID) {
298 ds_dbg(s, 0, "changing Vcc is not allowed at this time\n");
299 return -EINVAL;
300 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700301
302 /* We only allow changing Vpp1 and Vpp2 to the same value */
303 if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
304 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
Ilpo Järvinen60df3de82008-10-30 13:02:54 +0200305 if (mod->Vpp1 != mod->Vpp2) {
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200306 ds_dbg(s, 0, "Vpp1 and Vpp2 must be the same\n");
307 return -EINVAL;
Ilpo Järvinen60df3de82008-10-30 13:02:54 +0200308 }
Dominik Brodowski71ed90d2005-09-09 13:03:27 -0700309 s->socket.Vpp = mod->Vpp1;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200310 if (s->ops->set_socket(s, &s->socket)) {
311 dev_printk(KERN_WARNING, &s->dev,
312 "Unable to set VPP\n");
313 return -EIO;
314 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700315 } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200316 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
317 ds_dbg(s, 0, "changing Vcc is not allowed at this time\n");
318 return -EINVAL;
319 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700320
Dominik Brodowski4bbed522006-01-15 11:18:12 +0100321 if (mod->Attributes & CONF_IO_CHANGE_WIDTH) {
322 pccard_io_map io_off = { 0, 0, 0, 0, 1 };
323 pccard_io_map io_on;
324 int i;
325
326 io_on.speed = io_speed;
327 for (i = 0; i < MAX_IO_WIN; i++) {
328 if (!s->io[i].res)
329 continue;
330 io_off.map = i;
331 io_on.map = i;
332
333 io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
334 io_on.start = s->io[i].res->start;
335 io_on.stop = s->io[i].res->end;
336
337 s->ops->set_io_map(s, &io_off);
338 mdelay(40);
339 s->ops->set_io_map(s, &io_on);
340 }
341 }
342
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200343 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700344} /* modify_configuration */
345EXPORT_SYMBOL(pcmcia_modify_configuration);
346
347
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700348int pcmcia_release_configuration(struct pcmcia_device *p_dev)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700349{
350 pccard_io_map io = { 0, 0, 0, 0, 1 };
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700351 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100352 config_t *c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700353 int i;
354
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100355 if (p_dev->_locked) {
356 p_dev->_locked = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700357 if (--(s->lock_count) == 0) {
358 s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
359 s->socket.Vpp = 0;
360 s->socket.io_irq = 0;
361 s->ops->set_socket(s, &s->socket);
362 }
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100363 }
364 if (c->state & CONFIG_LOCKED) {
365 c->state &= ~CONFIG_LOCKED;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700366 if (c->state & CONFIG_IO_REQ)
367 for (i = 0; i < MAX_IO_WIN; i++) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100368 if (!s->io[i].res)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700369 continue;
370 s->io[i].Config--;
371 if (s->io[i].Config != 0)
372 continue;
373 io.map = i;
374 s->ops->set_io_map(s, &io);
375 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700376 }
377
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200378 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700379} /* pcmcia_release_configuration */
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700380
381
382/** pcmcia_release_io
383 *
384 * Release_io() releases the I/O ranges allocated by a client. This
385 * may be invoked some time after a card ejection has already dumped
386 * the actual socket configuration, so if the client is "stale", we
387 * don't bother checking the port ranges against the current socket
388 * values.
389 */
Adrian Bunkb4c88402006-01-18 23:53:13 -0800390static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700391{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700392 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100393 config_t *c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700394
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100395 if (!p_dev->_io )
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200396 return -EINVAL;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100397
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100398 p_dev->_io = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700399
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100400 if ((c->io.BasePort1 != req->BasePort1) ||
401 (c->io.NumPorts1 != req->NumPorts1) ||
402 (c->io.BasePort2 != req->BasePort2) ||
403 (c->io.NumPorts2 != req->NumPorts2))
Dominik Brodowski926c5402008-08-03 12:15:11 +0200404 return -EINVAL;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100405
406 c->state &= ~CONFIG_IO_REQ;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700407
408 release_io_space(s, req->BasePort1, req->NumPorts1);
409 if (req->NumPorts2)
410 release_io_space(s, req->BasePort2, req->NumPorts2);
411
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200412 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700413} /* pcmcia_release_io */
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700414
415
Adrian Bunkb4c88402006-01-18 23:53:13 -0800416static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700417{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700418 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100419 config_t *c= p_dev->function_config;
420
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100421 if (!p_dev->_irq)
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200422 return -EINVAL;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100423 p_dev->_irq = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700424
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100425 if (c->state & CONFIG_LOCKED)
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200426 return -EACCES;
Dominik Brodowski610e2372008-08-03 11:58:53 +0200427 if (c->irq.Attributes != req->Attributes) {
428 ds_dbg(s, 0, "IRQ attributes must match assigned ones\n");
429 return -EINVAL;
430 }
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200431 if (s->irq.AssignedIRQ != req->AssignedIRQ) {
432 ds_dbg(s, 0, "IRQ must match assigned one\n");
433 return -EINVAL;
434 }
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100435 if (--s->irq.Config == 0) {
436 c->state &= ~CONFIG_IRQ_REQ;
437 s->irq.AssignedIRQ = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700438 }
439
440 if (req->Attributes & IRQ_HANDLE_PRESENT) {
441 free_irq(req->AssignedIRQ, req->Instance);
442 }
443
444#ifdef CONFIG_PCMCIA_PROBE
445 pcmcia_used_irq[req->AssignedIRQ]--;
446#endif
447
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200448 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700449} /* pcmcia_release_irq */
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700450
451
452int pcmcia_release_window(window_handle_t win)
453{
454 struct pcmcia_socket *s;
455
456 if ((win == NULL) || (win->magic != WINDOW_MAGIC))
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200457 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700458 s = win->sock;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100459 if (!(win->handle->_win & CLIENT_WIN_REQ(win->index)))
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200460 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700461
462 /* Shut down memory window */
463 win->ctl.flags &= ~MAP_ACTIVE;
464 s->ops->set_mem_map(s, &win->ctl);
465 s->state &= ~SOCKET_WIN_REQ(win->index);
466
467 /* Release system memory */
468 if (win->ctl.res) {
469 release_resource(win->ctl.res);
470 kfree(win->ctl.res);
471 win->ctl.res = NULL;
472 }
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100473 win->handle->_win &= ~CLIENT_WIN_REQ(win->index);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700474
475 win->magic = 0;
476
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200477 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700478} /* pcmcia_release_window */
479EXPORT_SYMBOL(pcmcia_release_window);
480
481
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700482int pcmcia_request_configuration(struct pcmcia_device *p_dev,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700483 config_req_t *req)
484{
485 int i;
486 u_int base;
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700487 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700488 config_t *c;
489 pccard_io_map iomap;
490
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700491 if (!(s->state & SOCKET_PRESENT))
Joe Perchesd598de02009-06-28 09:26:41 -0700492 return -ENODEV;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700493
Dominik Brodowskide6405e2008-08-03 10:47:59 +0200494 if (req->IntType & INT_CARDBUS) {
495 ds_dbg(p_dev->socket, 0, "IntType may not be INT_CARDBUS\n");
496 return -EINVAL;
497 }
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100498 c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700499 if (c->state & CONFIG_LOCKED)
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200500 return -EACCES;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700501
502 /* Do power control. We don't allow changes in Vcc. */
Dominik Brodowski70294b42006-01-15 12:43:16 +0100503 s->socket.Vpp = req->Vpp;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200504 if (s->ops->set_socket(s, &s->socket)) {
505 dev_printk(KERN_WARNING, &s->dev,
506 "Unable to set socket state\n");
507 return -EINVAL;
508 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700509
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700510 /* Pick memory or I/O card, DMA mode, interrupt */
511 c->IntType = req->IntType;
512 c->Attributes = req->Attributes;
513 if (req->IntType & INT_MEMORY_AND_IO)
514 s->socket.flags |= SS_IOCARD;
515 if (req->IntType & INT_ZOOMED_VIDEO)
516 s->socket.flags |= SS_ZVCARD | SS_IOCARD;
517 if (req->Attributes & CONF_ENABLE_DMA)
518 s->socket.flags |= SS_DMA_MODE;
519 if (req->Attributes & CONF_ENABLE_SPKR)
520 s->socket.flags |= SS_SPKR_ENA;
521 if (req->Attributes & CONF_ENABLE_IRQ)
522 s->socket.io_irq = s->irq.AssignedIRQ;
523 else
524 s->socket.io_irq = 0;
525 s->ops->set_socket(s, &s->socket);
526 s->lock_count++;
527
528 /* Set up CIS configuration registers */
529 base = c->ConfigBase = req->ConfigBase;
Dominik Brodowski1ae9c7d2006-01-10 20:40:40 +0100530 c->CardValues = req->Present;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700531 if (req->Present & PRESENT_COPY) {
532 c->Copy = req->Copy;
533 pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy);
534 }
535 if (req->Present & PRESENT_OPTION) {
536 if (s->functions == 1) {
537 c->Option = req->ConfigIndex & COR_CONFIG_MASK;
538 } else {
539 c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK;
540 c->Option |= COR_FUNC_ENA|COR_IREQ_ENA;
541 if (req->Present & PRESENT_IOBASE_0)
542 c->Option |= COR_ADDR_DECODE;
543 }
544 if (c->state & CONFIG_IRQ_REQ)
545 if (!(c->irq.Attributes & IRQ_FORCED_PULSE))
546 c->Option |= COR_LEVEL_REQ;
547 pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
548 mdelay(40);
549 }
550 if (req->Present & PRESENT_STATUS) {
551 c->Status = req->Status;
552 pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
553 }
554 if (req->Present & PRESENT_PIN_REPLACE) {
555 c->Pin = req->Pin;
556 pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin);
557 }
558 if (req->Present & PRESENT_EXT_STATUS) {
559 c->ExtStatus = req->ExtStatus;
560 pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
561 }
562 if (req->Present & PRESENT_IOBASE_0) {
563 u_char b = c->io.BasePort1 & 0xff;
564 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
565 b = (c->io.BasePort1 >> 8) & 0xff;
566 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
567 }
568 if (req->Present & PRESENT_IOSIZE) {
569 u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1;
570 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
571 }
572
573 /* Configure I/O windows */
574 if (c->state & CONFIG_IO_REQ) {
575 iomap.speed = io_speed;
576 for (i = 0; i < MAX_IO_WIN; i++)
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100577 if (s->io[i].res) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700578 iomap.map = i;
579 iomap.flags = MAP_ACTIVE;
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100580 switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700581 case IO_DATA_PATH_WIDTH_16:
582 iomap.flags |= MAP_16BIT; break;
583 case IO_DATA_PATH_WIDTH_AUTO:
584 iomap.flags |= MAP_AUTOSZ; break;
585 default:
586 break;
587 }
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100588 iomap.start = s->io[i].res->start;
589 iomap.stop = s->io[i].res->end;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700590 s->ops->set_io_map(s, &iomap);
591 s->io[i].Config++;
592 }
593 }
594
595 c->state |= CONFIG_LOCKED;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100596 p_dev->_locked = 1;
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200597 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700598} /* pcmcia_request_configuration */
599EXPORT_SYMBOL(pcmcia_request_configuration);
600
601
602/** pcmcia_request_io
603 *
604 * Request_io() reserves ranges of port addresses for a socket.
605 * I have not implemented range sharing or alias addressing.
606 */
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700607int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700608{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700609 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700610 config_t *c;
611
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700612 if (!(s->state & SOCKET_PRESENT))
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200613 return -ENODEV;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700614
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700615 if (!req)
Dominik Brodowskide6405e2008-08-03 10:47:59 +0200616 return -EINVAL;
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100617 c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700618 if (c->state & CONFIG_LOCKED)
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200619 return -EACCES;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200620 if (c->state & CONFIG_IO_REQ) {
621 ds_dbg(s, 0, "IO already configured\n");
622 return -EBUSY;
623 }
Dominik Brodowski610e2372008-08-03 11:58:53 +0200624 if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
625 ds_dbg(s, 0, "bad attribute setting for IO region 1\n");
626 return -EINVAL;
627 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700628 if ((req->NumPorts2 > 0) &&
Dominik Brodowski610e2372008-08-03 11:58:53 +0200629 (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
630 ds_dbg(s, 0, "bad attribute setting for IO region 2\n");
631 return -EINVAL;
632 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700633
Dominik Brodowskif9580952008-08-03 11:40:19 +0200634 ds_dbg(s, 1, "trying to allocate resource 1\n");
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700635 if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
Dominik Brodowskif9580952008-08-03 11:40:19 +0200636 req->NumPorts1, req->IOAddrLines)) {
637 ds_dbg(s, 0, "allocation of resource 1 failed\n");
638 return -EBUSY;
639 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700640
641 if (req->NumPorts2) {
Dominik Brodowskif9580952008-08-03 11:40:19 +0200642 ds_dbg(s, 1, "trying to allocate resource 2\n");
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700643 if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
644 req->NumPorts2, req->IOAddrLines)) {
Dominik Brodowskif9580952008-08-03 11:40:19 +0200645 ds_dbg(s, 0, "allocation of resource 2 failed\n");
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700646 release_io_space(s, req->BasePort1, req->NumPorts1);
Dominik Brodowskif9580952008-08-03 11:40:19 +0200647 return -EBUSY;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700648 }
649 }
650
651 c->io = *req;
652 c->state |= CONFIG_IO_REQ;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100653 p_dev->_io = 1;
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200654 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700655} /* pcmcia_request_io */
656EXPORT_SYMBOL(pcmcia_request_io);
657
658
659/** pcmcia_request_irq
660 *
661 * Request_irq() reserves an irq for this client.
662 *
663 * Also, since Linux only reserves irq's when they are actually
664 * hooked, we don't guarantee that an irq will still be available
665 * when the configuration is locked. Now that I think about it,
666 * there might be a way to fix this using a dummy handler.
667 */
668
669#ifdef CONFIG_PCMCIA_PROBE
David Howells7d12e782006-10-05 14:55:46 +0100670static irqreturn_t test_action(int cpl, void *dev_id)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700671{
672 return IRQ_NONE;
673}
674#endif
675
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700676int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700677{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700678 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700679 config_t *c;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200680 int ret = -EINVAL, irq = 0;
Alan Coxc5331202006-05-16 16:16:44 +0100681 int type;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700682
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700683 if (!(s->state & SOCKET_PRESENT))
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200684 return -ENODEV;
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100685 c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700686 if (c->state & CONFIG_LOCKED)
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200687 return -EACCES;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200688 if (c->state & CONFIG_IRQ_REQ) {
689 ds_dbg(s, 0, "IRQ already configured\n");
690 return -EBUSY;
691 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700692
Alan Coxc5331202006-05-16 16:16:44 +0100693 /* Decide what type of interrupt we are registering */
694 type = 0;
695 if (s->functions > 1) /* All of this ought to be handled higher up */
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700696 type = IRQF_SHARED;
Alan Cox7bbfd392008-10-05 17:35:59 +0100697 else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700698 type = IRQF_SHARED;
Alan Cox7bbfd392008-10-05 17:35:59 +0100699 else printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n");
Alan Coxc5331202006-05-16 16:16:44 +0100700
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700701#ifdef CONFIG_PCMCIA_PROBE
Alan Cox635416ef2008-06-16 14:35:15 +0200702
703#ifdef IRQ_NOAUTOEN
704 /* if the underlying IRQ infrastructure allows for it, only allocate
705 * the IRQ, but do not enable it
706 */
707 if (!(req->Attributes & IRQ_HANDLE_PRESENT))
708 type |= IRQ_NOAUTOEN;
709#endif /* IRQ_NOAUTOEN */
710
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700711 if (s->irq.AssignedIRQ != 0) {
712 /* If the interrupt is already assigned, it must be the same */
713 irq = s->irq.AssignedIRQ;
714 } else {
715 int try;
716 u32 mask = s->irq_mask;
Dominik Brodowskia1b274f2005-07-28 01:07:27 -0700717 void *data = &p_dev->dev.driver; /* something unique to this device */
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700718
719 for (try = 0; try < 64; try++) {
720 irq = try % 32;
721
722 /* marked as available by driver, and not blocked by userspace? */
723 if (!((mask >> irq) & 1))
724 continue;
725
726 /* avoid an IRQ which is already used by a PCMCIA card */
727 if ((try < 32) && pcmcia_used_irq[irq])
728 continue;
729
730 /* register the correct driver, if possible, of check whether
731 * registering a dummy handle works, i.e. if the IRQ isn't
732 * marked as used by the kernel resource management core */
733 ret = request_irq(irq,
734 (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action,
Alan Coxc5331202006-05-16 16:16:44 +0100735 type,
Brice Goglinbd65a682005-09-09 13:03:29 -0700736 p_dev->devname,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700737 (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
738 if (!ret) {
739 if (!(req->Attributes & IRQ_HANDLE_PRESENT))
740 free_irq(irq, data);
741 break;
742 }
743 }
744 }
745#endif
Daniel Ritzc181e0e2005-09-09 13:03:25 -0700746 /* only assign PCI irq if no IRQ already assigned */
747 if (ret && !s->irq.AssignedIRQ) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700748 if (!s->pci_irq)
749 return ret;
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700750 type = IRQF_SHARED;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700751 irq = s->pci_irq;
752 }
753
Alan Coxc5331202006-05-16 16:16:44 +0100754 if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) {
Dominik Brodowskif9580952008-08-03 11:40:19 +0200755 ret = request_irq(irq, req->Handler, type,
756 p_dev->devname, req->Instance);
757 if (ret)
758 return ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700759 }
760
Alan Coxc5331202006-05-16 16:16:44 +0100761 /* Make sure the fact the request type was overridden is passed back */
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700762 if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) {
Alan Coxc5331202006-05-16 16:16:44 +0100763 req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
Dominik Brodowskiac449d62008-08-02 18:33:56 +0200764 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
765 "request for exclusive IRQ could not be fulfilled.\n");
766 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
767 "needs updating to supported shared IRQ lines.\n");
Alan Coxc5331202006-05-16 16:16:44 +0100768 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700769 c->irq.Attributes = req->Attributes;
770 s->irq.AssignedIRQ = req->AssignedIRQ = irq;
771 s->irq.Config++;
772
773 c->state |= CONFIG_IRQ_REQ;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100774 p_dev->_irq = 1;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700775
776#ifdef CONFIG_PCMCIA_PROBE
777 pcmcia_used_irq[irq]++;
778#endif
779
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200780 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700781} /* pcmcia_request_irq */
782EXPORT_SYMBOL(pcmcia_request_irq);
783
784
785/** pcmcia_request_window
786 *
787 * Request_window() establishes a mapping between card memory space
788 * and system memory space.
789 */
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700790int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700791{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700792 struct pcmcia_socket *s = (*p_dev)->socket;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700793 window_t *win;
794 u_long align;
795 int w;
796
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700797 if (!(s->state & SOCKET_PRESENT))
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200798 return -ENODEV;
Dominik Brodowski610e2372008-08-03 11:58:53 +0200799 if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
800 ds_dbg(s, 0, "bad attribute setting for iomem region\n");
801 return -EINVAL;
802 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700803
804 /* Window size defaults to smallest available */
805 if (req->Size == 0)
806 req->Size = s->map_size;
807 align = (((s->features & SS_CAP_MEM_ALIGN) ||
808 (req->Attributes & WIN_STRICT_ALIGN)) ?
809 req->Size : s->map_size);
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200810 if (req->Size & (s->map_size-1)) {
811 ds_dbg(s, 0, "invalid map size\n");
812 return -EINVAL;
813 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700814 if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200815 (req->Base & (align-1))) {
816 ds_dbg(s, 0, "invalid base address\n");
817 return -EINVAL;
818 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700819 if (req->Base)
820 align = 0;
821
822 /* Allocate system memory window */
823 for (w = 0; w < MAX_WIN; w++)
824 if (!(s->state & SOCKET_WIN_REQ(w))) break;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200825 if (w == MAX_WIN) {
826 ds_dbg(s, 0, "all windows are used already\n");
827 return -EINVAL;
828 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700829
830 win = &s->win[w];
831 win->magic = WINDOW_MAGIC;
832 win->index = w;
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700833 win->handle = *p_dev;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700834 win->sock = s;
835
836 if (!(s->features & SS_CAP_STATIC_MAP)) {
837 win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align,
838 (req->Attributes & WIN_MAP_BELOW_1MB), s);
Dominik Brodowskif9580952008-08-03 11:40:19 +0200839 if (!win->ctl.res) {
840 ds_dbg(s, 0, "allocating mem region failed\n");
841 return -EINVAL;
842 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700843 }
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100844 (*p_dev)->_win |= CLIENT_WIN_REQ(w);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700845
846 /* Configure the socket controller */
847 win->ctl.map = w+1;
848 win->ctl.flags = 0;
849 win->ctl.speed = req->AccessSpeed;
850 if (req->Attributes & WIN_MEMORY_TYPE)
851 win->ctl.flags |= MAP_ATTRIB;
852 if (req->Attributes & WIN_ENABLE)
853 win->ctl.flags |= MAP_ACTIVE;
854 if (req->Attributes & WIN_DATA_WIDTH_16)
855 win->ctl.flags |= MAP_16BIT;
856 if (req->Attributes & WIN_USE_WAIT)
857 win->ctl.flags |= MAP_USE_WAIT;
858 win->ctl.card_start = 0;
Dominik Brodowski926c5402008-08-03 12:15:11 +0200859 if (s->ops->set_mem_map(s, &win->ctl) != 0) {
860 ds_dbg(s, 0, "failed to set memory mapping\n");
861 return -EIO;
862 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700863 s->state |= SOCKET_WIN_REQ(w);
864
865 /* Return window handle */
866 if (s->features & SS_CAP_STATIC_MAP) {
867 req->Base = win->ctl.static_start;
868 } else {
869 req->Base = win->ctl.res->start;
870 }
871 *wh = win;
872
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200873 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700874} /* pcmcia_request_window */
875EXPORT_SYMBOL(pcmcia_request_window);
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100876
877void pcmcia_disable_device(struct pcmcia_device *p_dev) {
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100878 pcmcia_release_configuration(p_dev);
Dominik Brodowskifd238232006-03-05 10:45:09 +0100879 pcmcia_release_io(p_dev, &p_dev->io);
880 pcmcia_release_irq(p_dev, &p_dev->irq);
Dominik Brodowskic1ac0222008-06-14 18:51:06 +0200881 if (p_dev->win)
Dominik Brodowskifd238232006-03-05 10:45:09 +0100882 pcmcia_release_window(p_dev->win);
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100883}
884EXPORT_SYMBOL(pcmcia_disable_device);
Dominik Brodowskia804b572008-07-29 08:38:30 +0200885
886
887struct pcmcia_cfg_mem {
888 tuple_t tuple;
889 cisparse_t parse;
890 u8 buf[256];
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200891 cistpl_cftable_entry_t dflt;
Dominik Brodowskia804b572008-07-29 08:38:30 +0200892};
893
894/**
895 * pcmcia_loop_config() - loop over configuration options
896 * @p_dev: the struct pcmcia_device which we need to loop for.
897 * @conf_check: function to call for each configuration option.
898 * It gets passed the struct pcmcia_device, the CIS data
899 * describing the configuration option, and private data
900 * being passed to pcmcia_loop_config()
901 * @priv_data: private data to be passed to the conf_check function.
902 *
903 * pcmcia_loop_config() loops over all configuration options, and calls
904 * the driver-specific conf_check() for each one, checking whether
Wolfram Sang889c2772009-07-29 14:25:37 +0200905 * it is a valid one. Returns 0 on success or errorcode otherwise.
Dominik Brodowskia804b572008-07-29 08:38:30 +0200906 */
907int pcmcia_loop_config(struct pcmcia_device *p_dev,
908 int (*conf_check) (struct pcmcia_device *p_dev,
909 cistpl_cftable_entry_t *cfg,
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200910 cistpl_cftable_entry_t *dflt,
Dominik Brodowskiad913c12008-08-02 16:12:00 +0200911 unsigned int vcc,
Dominik Brodowskia804b572008-07-29 08:38:30 +0200912 void *priv_data),
913 void *priv_data)
914{
915 struct pcmcia_cfg_mem *cfg_mem;
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200916
Dominik Brodowskia804b572008-07-29 08:38:30 +0200917 tuple_t *tuple;
Wolfram Sang889c2772009-07-29 14:25:37 +0200918 int ret;
Dominik Brodowskiad913c12008-08-02 16:12:00 +0200919 unsigned int vcc;
Dominik Brodowskia804b572008-07-29 08:38:30 +0200920
921 cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
922 if (cfg_mem == NULL)
923 return -ENOMEM;
924
Dominik Brodowskiad913c12008-08-02 16:12:00 +0200925 /* get the current Vcc setting */
926 vcc = p_dev->socket->socket.Vcc;
927
Dominik Brodowskia804b572008-07-29 08:38:30 +0200928 tuple = &cfg_mem->tuple;
929 tuple->TupleData = cfg_mem->buf;
930 tuple->TupleDataMax = 255;
931 tuple->TupleOffset = 0;
932 tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
933 tuple->Attributes = 0;
934
935 ret = pcmcia_get_first_tuple(p_dev, tuple);
936 while (!ret) {
Dominik Brodowski498ac182008-08-02 14:59:13 +0200937 cistpl_cftable_entry_t *cfg = &cfg_mem->parse.cftable_entry;
938
Dominik Brodowskia804b572008-07-29 08:38:30 +0200939 if (pcmcia_get_tuple_data(p_dev, tuple))
940 goto next_entry;
941
Dominik Brodowski2f3061e2008-08-31 15:50:33 +0200942 if (pcmcia_parse_tuple(tuple, &cfg_mem->parse))
Dominik Brodowskia804b572008-07-29 08:38:30 +0200943 goto next_entry;
944
Dominik Brodowski498ac182008-08-02 14:59:13 +0200945 /* default values */
946 p_dev->conf.ConfigIndex = cfg->index;
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200947 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
948 cfg_mem->dflt = *cfg;
Dominik Brodowski498ac182008-08-02 14:59:13 +0200949
Dominik Brodowskiad913c12008-08-02 16:12:00 +0200950 ret = conf_check(p_dev, cfg, &cfg_mem->dflt, vcc, priv_data);
Dominik Brodowskia804b572008-07-29 08:38:30 +0200951 if (!ret)
952 break;
953
954next_entry:
955 ret = pcmcia_get_next_tuple(p_dev, tuple);
956 }
957
958 return ret;
959}
960EXPORT_SYMBOL(pcmcia_loop_config);