Add ipw2200 wireless driver.
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
new file mode 100644
index 0000000..6973346
--- /dev/null
+++ b/drivers/net/wireless/ipw2200.c
@@ -0,0 +1,7348 @@
+/******************************************************************************
+
+ Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved.
+
+ 802.11 status code portion of this file from ethereal-0.10.6:
+ Copyright 2000, Axis Communications AB
+ Ethereal - Network traffic analyzer
+ By Gerald Combs <gerald@ethereal.com>
+ Copyright 1998 Gerald Combs
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc., 59
+ Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ The full GNU General Public License is included in this distribution in the
+ file called LICENSE.
+
+ Contact Information:
+ James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+******************************************************************************/
+
+#include "ipw2200.h"
+
+#define IPW2200_VERSION "1.0.0"
+#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
+#define DRV_COPYRIGHT "Copyright(c) 2003-2004 Intel Corporation"
+#define DRV_VERSION IPW2200_VERSION
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+
+static int debug = 0;
+static int channel = 0;
+static char *ifname;
+static int mode = 0;
+
+static u32 ipw_debug_level;
+static int associate = 1;
+static int auto_create = 1;
+static int disable = 0;
+static const char ipw_modes[] = {
+ 'a', 'b', 'g', '?'
+};
+
+static void ipw_rx(struct ipw_priv *priv);
+static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
+ struct clx2_tx_queue *txq, int qindex);
+static int ipw_queue_reset(struct ipw_priv *priv);
+
+static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
+ int len, int sync);
+
+static void ipw_tx_queue_free(struct ipw_priv *);
+
+static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
+static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
+static void ipw_rx_queue_replenish(void *);
+
+static int ipw_up(struct ipw_priv *);
+static void ipw_down(struct ipw_priv *);
+static int ipw_config(struct ipw_priv *);
+static int init_supported_rates(struct ipw_priv *priv, struct ipw_supported_rates *prates);
+
+static u8 band_b_active_channel[MAX_B_CHANNELS] = {
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 0
+};
+static u8 band_a_active_channel[MAX_A_CHANNELS] = {
+ 36, 40, 44, 48, 149, 153, 157, 161, 165, 52, 56, 60, 64, 0
+};
+
+static int is_valid_channel(int mode_mask, int channel)
+{
+ int i;
+
+ if (!channel)
+ return 0;
+
+ if (mode_mask & IEEE_A)
+ for (i = 0; i < MAX_A_CHANNELS; i++)
+ if (band_a_active_channel[i] == channel)
+ return IEEE_A;
+
+ if (mode_mask & (IEEE_B | IEEE_G))
+ for (i = 0; i < MAX_B_CHANNELS; i++)
+ if (band_b_active_channel[i] == channel)
+ return mode_mask & (IEEE_B | IEEE_G);
+
+ return 0;
+}
+
+static char *snprint_line(char *buf, size_t count,
+ const u8 *data, u32 len, u32 ofs)
+{
+ int out, i, j, l;
+ char c;
+
+ out = snprintf(buf, count, "%08X", ofs);
+
+ for (l = 0, i = 0; i < 2; i++) {
+ out += snprintf(buf + out, count - out, " ");
+ for (j = 0; j < 8 && l < len; j++, l++)
+ out += snprintf(buf + out, count - out, "%02X ",
+ data[(i * 8 + j)]);
+ for (; j < 8; j++)
+ out += snprintf(buf + out, count - out, " ");
+ }
+
+ out += snprintf(buf + out, count - out, " ");
+ for (l = 0, i = 0; i < 2; i++) {
+ out += snprintf(buf + out, count - out, " ");
+ for (j = 0; j < 8 && l < len; j++, l++) {
+ c = data[(i * 8 + j)];
+ if (!isascii(c) || !isprint(c))
+ c = '.';
+
+ out += snprintf(buf + out, count - out, "%c", c);
+ }
+
+ for (; j < 8; j++)
+ out += snprintf(buf + out, count - out, " ");
+ }
+
+ return buf;
+}
+
+static void printk_buf(int level, const u8 *data, u32 len)
+{
+ char line[81];
+ u32 ofs = 0;
+ if (!(ipw_debug_level & level))
+ return;
+
+ while (len) {
+ printk(KERN_DEBUG "%s\n",
+ snprint_line(line, sizeof(line), &data[ofs],
+ min(len, 16U), ofs));
+ ofs += 16;
+ len -= min(len, 16U);
+ }
+}
+
+static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
+#define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
+
+static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
+#define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
+
+static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
+static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
+{
+ IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c));
+ _ipw_write_reg8(a, b, c);
+}
+
+static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
+static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
+{
+ IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c));
+ _ipw_write_reg16(a, b, c);
+}
+
+static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
+static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
+{
+ IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c));
+ _ipw_write_reg32(a, b, c);
+}
+
+#define _ipw_write8(ipw, ofs, val) writeb((val), (ipw)->hw_base + (ofs))
+#define ipw_write8(ipw, ofs, val) \
+ IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
+ _ipw_write8(ipw, ofs, val)
+
+#define _ipw_write16(ipw, ofs, val) writew((val), (ipw)->hw_base + (ofs))
+#define ipw_write16(ipw, ofs, val) \
+ IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
+ _ipw_write16(ipw, ofs, val)
+
+#define _ipw_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs))
+#define ipw_write32(ipw, ofs, val) \
+ IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
+ _ipw_write32(ipw, ofs, val)
+
+#define _ipw_read8(ipw, ofs) readb((ipw)->hw_base + (ofs))
+static inline u8 __ipw_read8(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) {
+ IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", f, l, (u32)(ofs));
+ return _ipw_read8(ipw, ofs);
+}
+#define ipw_read8(ipw, ofs) __ipw_read8(__FILE__, __LINE__, ipw, ofs)
+
+#define _ipw_read16(ipw, ofs) readw((ipw)->hw_base + (ofs))
+static inline u16 __ipw_read16(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) {
+ IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", f, l, (u32)(ofs));
+ return _ipw_read16(ipw, ofs);
+}
+#define ipw_read16(ipw, ofs) __ipw_read16(__FILE__, __LINE__, ipw, ofs)
+
+#define _ipw_read32(ipw, ofs) readl((ipw)->hw_base + (ofs))
+static inline u32 __ipw_read32(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) {
+ IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", f, l, (u32)(ofs));
+ return _ipw_read32(ipw, ofs);
+}
+#define ipw_read32(ipw, ofs) __ipw_read32(__FILE__, __LINE__, ipw, ofs)
+
+static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
+#define ipw_read_indirect(a, b, c, d) \
+ IPW_DEBUG_IO("%s %d: read_inddirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
+ _ipw_read_indirect(a, b, c, d)
+
+static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 *data, int num);
+#define ipw_write_indirect(a, b, c, d) \
+ IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
+ _ipw_write_indirect(a, b, c, d)
+
+/* indirect write s */
+static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg,
+ u32 value)
+{
+ IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n",
+ priv, reg, value);
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, reg);
+ _ipw_write32(priv, CX2_INDIRECT_DATA, value);
+}
+
+
+static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
+{
+ IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, reg & CX2_INDIRECT_ADDR_MASK);
+ _ipw_write8(priv, CX2_INDIRECT_DATA, value);
+ IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n",
+ (unsigned)(priv->hw_base + CX2_INDIRECT_DATA),
+ value);
+}
+
+static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg,
+ u16 value)
+{
+ IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, reg & CX2_INDIRECT_ADDR_MASK);
+ _ipw_write16(priv, CX2_INDIRECT_DATA, value);
+}
+
+/* indirect read s */
+
+static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
+{
+ u32 word;
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, reg & CX2_INDIRECT_ADDR_MASK);
+ IPW_DEBUG_IO(" reg = 0x%8X : \n", reg);
+ word = _ipw_read32(priv, CX2_INDIRECT_DATA);
+ return (word >> ((reg & 0x3)*8)) & 0xff;
+}
+
+static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
+{
+ u32 value;
+
+ IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
+
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, reg);
+ value = _ipw_read32(priv, CX2_INDIRECT_DATA);
+ IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value);
+ return value;
+}
+
+/* iterative/auto-increment 32 bit reads and writes */
+static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
+ int num)
+{
+ u32 aligned_addr = addr & CX2_INDIRECT_ADDR_MASK;
+ u32 dif_len = addr - aligned_addr;
+ u32 aligned_len;
+ u32 i;
+
+ IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
+
+ /* Read the first nibble byte by byte */
+ if (unlikely(dif_len)) {
+ /* Start reading at aligned_addr + dif_len */
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
+ for (i = dif_len; i < 4; i++, buf++)
+ *buf = _ipw_read8(priv, CX2_INDIRECT_DATA + i);
+ num -= dif_len;
+ aligned_addr += 4;
+ }
+
+ /* Read DWs through autoinc register */
+ _ipw_write32(priv, CX2_AUTOINC_ADDR, aligned_addr);
+ aligned_len = num & CX2_INDIRECT_ADDR_MASK;
+ for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
+ *(u32*)buf = ipw_read32(priv, CX2_AUTOINC_DATA);
+
+ /* Copy the last nibble */
+ dif_len = num - aligned_len;
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
+ for (i = 0; i < dif_len; i++, buf++)
+ *buf = ipw_read8(priv, CX2_INDIRECT_DATA + i);
+}
+
+static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 *buf,
+ int num)
+{
+ u32 aligned_addr = addr & CX2_INDIRECT_ADDR_MASK;
+ u32 dif_len = addr - aligned_addr;
+ u32 aligned_len;
+ u32 i;
+
+ IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
+
+ /* Write the first nibble byte by byte */
+ if (unlikely(dif_len)) {
+ /* Start writing at aligned_addr + dif_len */
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
+ for (i = dif_len; i < 4; i++, buf++)
+ _ipw_write8(priv, CX2_INDIRECT_DATA + i, *buf);
+ num -= dif_len;
+ aligned_addr += 4;
+ }
+
+ /* Write DWs through autoinc register */
+ _ipw_write32(priv, CX2_AUTOINC_ADDR, aligned_addr);
+ aligned_len = num & CX2_INDIRECT_ADDR_MASK;
+ for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
+ _ipw_write32(priv, CX2_AUTOINC_DATA, *(u32*)buf);
+
+ /* Copy the last nibble */
+ dif_len = num - aligned_len;
+ _ipw_write32(priv, CX2_INDIRECT_ADDR, aligned_addr);
+ for (i = 0; i < dif_len; i++, buf++)
+ _ipw_write8(priv, CX2_INDIRECT_DATA + i, *buf);
+}
+
+static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
+ int num)
+{
+ memcpy_toio((priv->hw_base + addr), buf, num);
+}
+
+static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
+{
+ ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
+}
+
+static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
+{
+ ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
+}
+
+static inline void ipw_enable_interrupts(struct ipw_priv *priv)
+{
+ if (priv->status & STATUS_INT_ENABLED)
+ return;
+ priv->status |= STATUS_INT_ENABLED;
+ ipw_write32(priv, CX2_INTA_MASK_R, CX2_INTA_MASK_ALL);
+}
+
+static inline void ipw_disable_interrupts(struct ipw_priv *priv)
+{
+ if (!(priv->status & STATUS_INT_ENABLED))
+ return;
+ priv->status &= ~STATUS_INT_ENABLED;
+ ipw_write32(priv, CX2_INTA_MASK_R, ~CX2_INTA_MASK_ALL);
+}
+
+static char *ipw_error_desc(u32 val)
+{
+ switch (val) {
+ case IPW_FW_ERROR_OK:
+ return "ERROR_OK";
+ case IPW_FW_ERROR_FAIL:
+ return "ERROR_FAIL";
+ case IPW_FW_ERROR_MEMORY_UNDERFLOW:
+ return "MEMORY_UNDERFLOW";
+ case IPW_FW_ERROR_MEMORY_OVERFLOW:
+ return "MEMORY_OVERFLOW";
+ case IPW_FW_ERROR_BAD_PARAM:
+ return "ERROR_BAD_PARAM";
+ case IPW_FW_ERROR_BAD_CHECKSUM:
+ return "ERROR_BAD_CHECKSUM";
+ case IPW_FW_ERROR_NMI_INTERRUPT:
+ return "ERROR_NMI_INTERRUPT";
+ case IPW_FW_ERROR_BAD_DATABASE:
+ return "ERROR_BAD_DATABASE";
+ case IPW_FW_ERROR_ALLOC_FAIL:
+ return "ERROR_ALLOC_FAIL";
+ case IPW_FW_ERROR_DMA_UNDERRUN:
+ return "ERROR_DMA_UNDERRUN";
+ case IPW_FW_ERROR_DMA_STATUS:
+ return "ERROR_DMA_STATUS";
+ case IPW_FW_ERROR_DINOSTATUS_ERROR:
+ return "ERROR_DINOSTATUS_ERROR";
+ case IPW_FW_ERROR_EEPROMSTATUS_ERROR:
+ return "ERROR_EEPROMSTATUS_ERROR";
+ case IPW_FW_ERROR_SYSASSERT:
+ return "ERROR_SYSASSERT";
+ case IPW_FW_ERROR_FATAL_ERROR:
+ return "ERROR_FATALSTATUS_ERROR";
+ default:
+ return "UNKNOWNSTATUS_ERROR";
+ }
+}
+
+static void ipw_dump_nic_error_log(struct ipw_priv *priv)
+{
+ u32 desc, time, blink1, blink2, ilink1, ilink2, idata, i, count, base;
+
+ base = ipw_read32(priv, IPWSTATUS_ERROR_LOG);
+ count = ipw_read_reg32(priv, base);
+
+ if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+ IPW_ERROR("Start IPW Error Log Dump:\n");
+ IPW_ERROR("Status: 0x%08X, Config: %08X\n",
+ priv->status, priv->config);
+ }
+
+ for (i = ERROR_START_OFFSET;
+ i <= count * ERROR_ELEM_SIZE;
+ i += ERROR_ELEM_SIZE) {
+ desc = ipw_read_reg32(priv, base + i);
+ time = ipw_read_reg32(priv, base + i + 1*sizeof(u32));
+ blink1 = ipw_read_reg32(priv, base + i + 2*sizeof(u32));
+ blink2 = ipw_read_reg32(priv, base + i + 3*sizeof(u32));
+ ilink1 = ipw_read_reg32(priv, base + i + 4*sizeof(u32));
+ ilink2 = ipw_read_reg32(priv, base + i + 5*sizeof(u32));
+ idata = ipw_read_reg32(priv, base + i + 6*sizeof(u32));
+
+ IPW_ERROR(
+ "%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ ipw_error_desc(desc), time, blink1, blink2,
+ ilink1, ilink2, idata);
+ }
+}
+
+static void ipw_dump_nic_event_log(struct ipw_priv *priv)
+{
+ u32 ev, time, data, i, count, base;
+
+ base = ipw_read32(priv, IPW_EVENT_LOG);
+ count = ipw_read_reg32(priv, base);
+
+ if (EVENT_START_OFFSET <= count * EVENT_ELEM_SIZE)
+ IPW_ERROR("Start IPW Event Log Dump:\n");
+
+ for (i = EVENT_START_OFFSET;
+ i <= count * EVENT_ELEM_SIZE;
+ i += EVENT_ELEM_SIZE) {
+ ev = ipw_read_reg32(priv, base + i);
+ time = ipw_read_reg32(priv, base + i + 1*sizeof(u32));
+ data = ipw_read_reg32(priv, base + i + 2*sizeof(u32));
+
+#ifdef CONFIG_IPW_DEBUG
+ IPW_ERROR("%i\t0x%08x\t%i\n", time, data, ev);
+#endif
+ }
+}
+
+static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val,
+ u32 *len)
+{
+ u32 addr, field_info, field_len, field_count, total_len;
+
+ IPW_DEBUG_ORD("ordinal = %i\n", ord);
+
+ if (!priv || !val || !len) {
+ IPW_DEBUG_ORD("Invalid argument\n");
+ return -EINVAL;
+ }
+
+ /* verify device ordinal tables have been initialized */
+ if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
+ IPW_DEBUG_ORD("Access ordinals before initialization\n");
+ return -EINVAL;
+ }
+
+ switch (IPW_ORD_TABLE_ID_MASK & ord) {
+ case IPW_ORD_TABLE_0_MASK:
+ /*
+ * TABLE 0: Direct access to a table of 32 bit values
+ *
+ * This is a very simple table with the data directly
+ * read from the table
+ */
+
+ /* remove the table id from the ordinal */
+ ord &= IPW_ORD_TABLE_VALUE_MASK;
+
+ /* boundary check */
+ if (ord > priv->table0_len) {
+ IPW_DEBUG_ORD("ordinal value (%i) longer then "
+ "max (%i)\n", ord, priv->table0_len);
+ return -EINVAL;
+ }
+
+ /* verify we have enough room to store the value */
+ if (*len < sizeof(u32)) {
+ IPW_DEBUG_ORD("ordinal buffer length too small, "
+ "need %d\n", sizeof(u32));
+ return -EINVAL;
+ }
+
+ IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
+ ord, priv->table0_addr + (ord << 2));
+
+ *len = sizeof(u32);
+ ord <<= 2;
+ *((u32 *)val) = ipw_read32(priv, priv->table0_addr + ord);
+ break;
+
+ case IPW_ORD_TABLE_1_MASK:
+ /*
+ * TABLE 1: Indirect access to a table of 32 bit values
+ *
+ * This is a fairly large table of u32 values each
+ * representing starting addr for the data (which is
+ * also a u32)
+ */
+
+ /* remove the table id from the ordinal */
+ ord &= IPW_ORD_TABLE_VALUE_MASK;
+
+ /* boundary check */
+ if (ord > priv->table1_len) {
+ IPW_DEBUG_ORD("ordinal value too long\n");
+ return -EINVAL;
+ }
+
+ /* verify we have enough room to store the value */
+ if (*len < sizeof(u32)) {
+ IPW_DEBUG_ORD("ordinal buffer length too small, "
+ "need %d\n", sizeof(u32));
+ return -EINVAL;
+ }
+
+ *((u32 *)val) = ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
+ *len = sizeof(u32);
+ break;
+
+ case IPW_ORD_TABLE_2_MASK:
+ /*
+ * TABLE 2: Indirect access to a table of variable sized values
+ *
+ * This table consist of six values, each containing
+ * - dword containing the starting offset of the data
+ * - dword containing the lengh in the first 16bits
+ * and the count in the second 16bits
+ */
+
+ /* remove the table id from the ordinal */
+ ord &= IPW_ORD_TABLE_VALUE_MASK;
+
+ /* boundary check */
+ if (ord > priv->table2_len) {
+ IPW_DEBUG_ORD("ordinal value too long\n");
+ return -EINVAL;
+ }
+
+ /* get the address of statistic */
+ addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
+
+ /* get the second DW of statistics ;
+ * two 16-bit words - first is length, second is count */
+ field_info = ipw_read_reg32(priv, priv->table2_addr + (ord << 3) + sizeof(u32));
+
+ /* get each entry length */
+ field_len = *((u16 *)&field_info);
+
+ /* get number of entries */
+ field_count = *(((u16 *)&field_info) + 1);
+
+ /* abort if not enought memory */
+ total_len = field_len * field_count;
+ if (total_len > *len) {
+ *len = total_len;
+ return -EINVAL;
+ }
+
+ *len = total_len;
+ if (!total_len)
+ return 0;
+
+ IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
+ "field_info = 0x%08x\n",
+ addr, total_len, field_info);
+ ipw_read_indirect(priv, addr, val, total_len);
+ break;
+
+ default:
+ IPW_DEBUG_ORD("Invalid ordinal!\n");
+ return -EINVAL;
+
+ }
+
+
+ return 0;
+}
+
+static void ipw_init_ordinals(struct ipw_priv *priv)
+{
+ priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
+ priv->table0_len = ipw_read32(priv, priv->table0_addr);
+
+ IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
+ priv->table0_addr, priv->table0_len);
+
+ priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
+ priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
+
+ IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
+ priv->table1_addr, priv->table1_len);
+
+ priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
+ priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
+ priv->table2_len &= 0x0000ffff; /* use first two bytes */
+
+ IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
+ priv->table2_addr, priv->table2_len);
+
+}
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
+ * used for controling the debug level.
+ *
+ * See the level definitions in ipw for details.
+ */
+static ssize_t show_debug_level(struct device_driver *d, char *buf)
+{
+ return sprintf(buf, "0x%08X\n", ipw_debug_level);
+}
+static ssize_t store_debug_level(struct device_driver *d, const char *buf,
+ size_t count)
+{
+ char *p = (char *)buf;
+ u32 val;
+
+ if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
+ p++;
+ if (p[0] == 'x' || p[0] == 'X')
+ p++;
+ val = simple_strtoul(p, &p, 16);
+ } else
+ val = simple_strtoul(p, &p, 10);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in hex or decimal form.\n", buf);
+ else
+ ipw_debug_level = val;
+
+ return strnlen(buf, count);
+}
+
+static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ show_debug_level, store_debug_level);
+
+static ssize_t show_status(struct device *d, char *buf)
+{
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+ return sprintf(buf, "0x%08x\n", (int)p->status);
+}
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+static ssize_t show_cfg(struct device *d, char *buf)
+{
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+ return sprintf(buf, "0x%08x\n", (int)p->config);
+}
+static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
+
+static ssize_t show_nic_type(struct device *d, char *buf)
+{
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+ u8 type = p->eeprom[EEPROM_NIC_TYPE];
+
+ switch (type) {
+ case EEPROM_NIC_TYPE_STANDARD:
+ return sprintf(buf, "STANDARD\n");
+ case EEPROM_NIC_TYPE_DELL:
+ return sprintf(buf, "DELL\n");
+ case EEPROM_NIC_TYPE_FUJITSU:
+ return sprintf(buf, "FUJITSU\n");
+ case EEPROM_NIC_TYPE_IBM:
+ return sprintf(buf, "IBM\n");
+ case EEPROM_NIC_TYPE_HP:
+ return sprintf(buf, "HP\n");
+ }
+
+ return sprintf(buf, "UNKNOWN\n");
+}
+static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
+
+static ssize_t dump_error_log(struct device *d, const char *buf,
+ size_t count)
+{
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ ipw_dump_nic_error_log((struct ipw_priv*)d->driver_data);
+
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
+
+static ssize_t dump_event_log(struct device *d, const char *buf,
+ size_t count)
+{
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ ipw_dump_nic_event_log((struct ipw_priv*)d->driver_data);
+
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
+
+static ssize_t show_ucode_version(struct device *d, char *buf)
+{
+ u32 len = sizeof(u32), tmp = 0;
+ struct ipw_priv *p = (struct ipw_priv*)d->driver_data;
+
+ if(ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
+ return 0;
+
+ return sprintf(buf, "0x%08x\n", tmp);
+}
+static DEVICE_ATTR(ucode_version, S_IWUSR|S_IRUGO, show_ucode_version, NULL);
+
+static ssize_t show_rtc(struct device *d, char *buf)
+{
+ u32 len = sizeof(u32), tmp = 0;
+ struct ipw_priv *p = (struct ipw_priv*)d->driver_data;
+
+ if(ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
+ return 0;
+
+ return sprintf(buf, "0x%08x\n", tmp);
+}
+static DEVICE_ATTR(rtc, S_IWUSR|S_IRUGO, show_rtc, NULL);
+
+/*
+ * Add a device attribute to view/control the delay between eeprom
+ * operations.
+ */
+static ssize_t show_eeprom_delay(struct device *d, char *buf)
+{
+ int n = ((struct ipw_priv*)d->driver_data)->eeprom_delay;
+ return sprintf(buf, "%i\n", n);
+}
+static ssize_t store_eeprom_delay(struct device *d, const char *buf,
+ size_t count)
+{
+ struct ipw_priv *p = (struct ipw_priv*)d->driver_data;
+ sscanf(buf, "%i", &p->eeprom_delay);
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(eeprom_delay, S_IWUSR|S_IRUGO,
+ show_eeprom_delay,store_eeprom_delay);
+
+static ssize_t show_command_event_reg(struct device *d, char *buf)
+{
+ u32 reg = 0;
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+
+ reg = ipw_read_reg32(p, CX2_INTERNAL_CMD_EVENT);
+ return sprintf(buf, "0x%08x\n", reg);
+}
+static ssize_t store_command_event_reg(struct device *d,
+ const char *buf,
+ size_t count)
+{
+ u32 reg;
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+
+ sscanf(buf, "%x", ®);
+ ipw_write_reg32(p, CX2_INTERNAL_CMD_EVENT, reg);
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(command_event_reg, S_IWUSR|S_IRUGO,
+ show_command_event_reg,store_command_event_reg);
+
+static ssize_t show_mem_gpio_reg(struct device *d, char *buf)
+{
+ u32 reg = 0;
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+
+ reg = ipw_read_reg32(p, 0x301100);
+ return sprintf(buf, "0x%08x\n", reg);
+}
+static ssize_t store_mem_gpio_reg(struct device *d,
+ const char *buf,
+ size_t count)
+{
+ u32 reg;
+ struct ipw_priv *p = (struct ipw_priv *)d->driver_data;
+
+ sscanf(buf, "%x", ®);
+ ipw_write_reg32(p, 0x301100, reg);
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(mem_gpio_reg, S_IWUSR|S_IRUGO,
+ show_mem_gpio_reg,store_mem_gpio_reg);
+
+static ssize_t show_indirect_dword(struct device *d, char *buf)
+{
+ u32 reg = 0;
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+ if (priv->status & STATUS_INDIRECT_DWORD)
+ reg = ipw_read_reg32(priv, priv->indirect_dword);
+ else
+ reg = 0;
+
+ return sprintf(buf, "0x%08x\n", reg);
+}
+static ssize_t store_indirect_dword(struct device *d,
+ const char *buf,
+ size_t count)
+{
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+
+ sscanf(buf, "%x", &priv->indirect_dword);
+ priv->status |= STATUS_INDIRECT_DWORD;
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(indirect_dword, S_IWUSR|S_IRUGO,
+ show_indirect_dword,store_indirect_dword);
+
+static ssize_t show_indirect_byte(struct device *d, char *buf)
+{
+ u8 reg = 0;
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+ if (priv->status & STATUS_INDIRECT_BYTE)
+ reg = ipw_read_reg8(priv, priv->indirect_byte);
+ else
+ reg = 0;
+
+ return sprintf(buf, "0x%02x\n", reg);
+}
+static ssize_t store_indirect_byte(struct device *d,
+ const char *buf,
+ size_t count)
+{
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+
+ sscanf(buf, "%x", &priv->indirect_byte);
+ priv->status |= STATUS_INDIRECT_BYTE;
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(indirect_byte, S_IWUSR|S_IRUGO,
+ show_indirect_byte, store_indirect_byte);
+
+static ssize_t show_direct_dword(struct device *d, char *buf)
+{
+ u32 reg = 0;
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+
+ if (priv->status & STATUS_DIRECT_DWORD)
+ reg = ipw_read32(priv, priv->direct_dword);
+ else
+ reg = 0;
+
+ return sprintf(buf, "0x%08x\n", reg);
+}
+static ssize_t store_direct_dword(struct device *d,
+ const char *buf,
+ size_t count)
+{
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+
+ sscanf(buf, "%x", &priv->direct_dword);
+ priv->status |= STATUS_DIRECT_DWORD;
+ return strnlen(buf, count);
+}
+static DEVICE_ATTR(direct_dword, S_IWUSR|S_IRUGO,
+ show_direct_dword,store_direct_dword);
+
+
+static inline int rf_kill_active(struct ipw_priv *priv)
+{
+ if (0 == (ipw_read32(priv, 0x30) & 0x10000))
+ priv->status |= STATUS_RF_KILL_HW;
+ else
+ priv->status &= ~STATUS_RF_KILL_HW;
+
+ return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
+}
+
+static ssize_t show_rf_kill(struct device *d, char *buf)
+{
+ /* 0 - RF kill not enabled
+ 1 - SW based RF kill active (sysfs)
+ 2 - HW based RF kill active
+ 3 - Both HW and SW baed RF kill active */
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+ int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
+ (rf_kill_active(priv) ? 0x2 : 0x0);
+ return sprintf(buf, "%i\n", val);
+}
+
+static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
+{
+ if ((disable_radio ? 1 : 0) ==
+ (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
+ return 0 ;
+
+ IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
+ disable_radio ? "OFF" : "ON");
+
+ if (disable_radio) {
+ priv->status |= STATUS_RF_KILL_SW;
+
+ if (priv->workqueue) {
+ cancel_delayed_work(&priv->request_scan);
+ }
+ wake_up_interruptible(&priv->wait_command_queue);
+ queue_work(priv->workqueue, &priv->down);
+ } else {
+ priv->status &= ~STATUS_RF_KILL_SW;
+ if (rf_kill_active(priv)) {
+ IPW_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by HW switch\n");
+ /* Make sure the RF_KILL check timer is running */
+ cancel_delayed_work(&priv->rf_kill);
+ queue_delayed_work(priv->workqueue, &priv->rf_kill,
+ 2 * HZ);
+ } else
+ queue_work(priv->workqueue, &priv->up);
+ }
+
+ return 1;
+}
+
+static ssize_t store_rf_kill(struct device *d, const char *buf, size_t count)
+{
+ struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
+
+ ipw_radio_kill_sw(priv, buf[0] == '1');
+
+ return count;
+}
+static DEVICE_ATTR(rf_kill, S_IWUSR|S_IRUGO, show_rf_kill, store_rf_kill);
+
+static void ipw_irq_tasklet(struct ipw_priv *priv)
+{
+ u32 inta, inta_mask, handled = 0;
+ unsigned long flags;
+ int rc = 0;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ inta = ipw_read32(priv, CX2_INTA_RW);
+ inta_mask = ipw_read32(priv, CX2_INTA_MASK_R);
+ inta &= (CX2_INTA_MASK_ALL & inta_mask);
+
+ /* Add any cached INTA values that need to be handled */
+ inta |= priv->isr_inta;
+
+ /* handle all the justifications for the interrupt */
+ if (inta & CX2_INTA_BIT_RX_TRANSFER) {
+ ipw_rx(priv);
+ handled |= CX2_INTA_BIT_RX_TRANSFER;
+ }
+
+ if (inta & CX2_INTA_BIT_TX_CMD_QUEUE) {
+ IPW_DEBUG_HC("Command completed.\n");
+ rc = ipw_queue_tx_reclaim( priv, &priv->txq_cmd, -1);
+ priv->status &= ~STATUS_HCMD_ACTIVE;
+ wake_up_interruptible(&priv->wait_command_queue);
+ handled |= CX2_INTA_BIT_TX_CMD_QUEUE;
+ }
+
+ if (inta & CX2_INTA_BIT_TX_QUEUE_1) {
+ IPW_DEBUG_TX("TX_QUEUE_1\n");
+ rc = ipw_queue_tx_reclaim( priv, &priv->txq[0], 0);
+ handled |= CX2_INTA_BIT_TX_QUEUE_1;
+ }
+
+ if (inta & CX2_INTA_BIT_TX_QUEUE_2) {
+ IPW_DEBUG_TX("TX_QUEUE_2\n");
+ rc = ipw_queue_tx_reclaim( priv, &priv->txq[1], 1);
+ handled |= CX2_INTA_BIT_TX_QUEUE_2;
+ }
+
+ if (inta & CX2_INTA_BIT_TX_QUEUE_3) {
+ IPW_DEBUG_TX("TX_QUEUE_3\n");
+ rc = ipw_queue_tx_reclaim( priv, &priv->txq[2], 2);
+ handled |= CX2_INTA_BIT_TX_QUEUE_3;
+ }
+
+ if (inta & CX2_INTA_BIT_TX_QUEUE_4) {
+ IPW_DEBUG_TX("TX_QUEUE_4\n");
+ rc = ipw_queue_tx_reclaim( priv, &priv->txq[3], 3);
+ handled |= CX2_INTA_BIT_TX_QUEUE_4;
+ }
+
+ if (inta & CX2_INTA_BIT_STATUS_CHANGE) {
+ IPW_WARNING("STATUS_CHANGE\n");
+ handled |= CX2_INTA_BIT_STATUS_CHANGE;
+ }
+
+ if (inta & CX2_INTA_BIT_BEACON_PERIOD_EXPIRED) {
+ IPW_WARNING("TX_PERIOD_EXPIRED\n");
+ handled |= CX2_INTA_BIT_BEACON_PERIOD_EXPIRED;
+ }
+
+ if (inta & CX2_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
+ IPW_WARNING("HOST_CMD_DONE\n");
+ handled |= CX2_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
+ }
+
+ if (inta & CX2_INTA_BIT_FW_INITIALIZATION_DONE) {
+ IPW_WARNING("FW_INITIALIZATION_DONE\n");
+ handled |= CX2_INTA_BIT_FW_INITIALIZATION_DONE;
+ }
+
+ if (inta & CX2_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
+ IPW_WARNING("PHY_OFF_DONE\n");
+ handled |= CX2_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
+ }
+
+ if (inta & CX2_INTA_BIT_RF_KILL_DONE) {
+ IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
+ priv->status |= STATUS_RF_KILL_HW;
+ wake_up_interruptible(&priv->wait_command_queue);
+ netif_carrier_off(priv->net_dev);
+ netif_stop_queue(priv->net_dev);
+ cancel_delayed_work(&priv->request_scan);
+ queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
+ handled |= CX2_INTA_BIT_RF_KILL_DONE;
+ }
+
+ if (inta & CX2_INTA_BIT_FATAL_ERROR) {
+ IPW_ERROR("Firmware error detected. Restarting.\n");
+#ifdef CONFIG_IPW_DEBUG
+ if (ipw_debug_level & IPW_DL_FW_ERRORS) {
+ ipw_dump_nic_error_log(priv);
+ ipw_dump_nic_event_log(priv);
+ }
+#endif
+ queue_work(priv->workqueue, &priv->adapter_restart);
+ handled |= CX2_INTA_BIT_FATAL_ERROR;
+ }
+
+ if (inta & CX2_INTA_BIT_PARITY_ERROR) {
+ IPW_ERROR("Parity error\n");
+ handled |= CX2_INTA_BIT_PARITY_ERROR;
+ }
+
+ if (handled != inta) {
+ IPW_ERROR("Unhandled INTA bits 0x%08x\n",
+ inta & ~handled);
+ }
+
+ /* enable all interrupts */
+ ipw_enable_interrupts(priv);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+#ifdef CONFIG_IPW_DEBUG
+#define IPW_CMD(x) case IPW_CMD_ ## x : return #x
+static char *get_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ IPW_CMD(HOST_COMPLETE);
+ IPW_CMD(POWER_DOWN);
+ IPW_CMD(SYSTEM_CONFIG);
+ IPW_CMD(MULTICAST_ADDRESS);
+ IPW_CMD(SSID);
+ IPW_CMD(ADAPTER_ADDRESS);
+ IPW_CMD(PORT_TYPE);
+ IPW_CMD(RTS_THRESHOLD);
+ IPW_CMD(FRAG_THRESHOLD);
+ IPW_CMD(POWER_MODE);
+ IPW_CMD(WEP_KEY);
+ IPW_CMD(TGI_TX_KEY);
+ IPW_CMD(SCAN_REQUEST);
+ IPW_CMD(SCAN_REQUEST_EXT);
+ IPW_CMD(ASSOCIATE);
+ IPW_CMD(SUPPORTED_RATES);
+ IPW_CMD(SCAN_ABORT);
+ IPW_CMD(TX_FLUSH);
+ IPW_CMD(QOS_PARAMETERS);
+ IPW_CMD(DINO_CONFIG);
+ IPW_CMD(RSN_CAPABILITIES);
+ IPW_CMD(RX_KEY);
+ IPW_CMD(CARD_DISABLE);
+ IPW_CMD(SEED_NUMBER);
+ IPW_CMD(TX_POWER);
+ IPW_CMD(COUNTRY_INFO);
+ IPW_CMD(AIRONET_INFO);
+ IPW_CMD(AP_TX_POWER);
+ IPW_CMD(CCKM_INFO);
+ IPW_CMD(CCX_VER_INFO);
+ IPW_CMD(SET_CALIBRATION);
+ IPW_CMD(SENSITIVITY_CALIB);
+ IPW_CMD(RETRY_LIMIT);
+ IPW_CMD(IPW_PRE_POWER_DOWN);
+ IPW_CMD(VAP_BEACON_TEMPLATE);
+ IPW_CMD(VAP_DTIM_PERIOD);
+ IPW_CMD(EXT_SUPPORTED_RATES);
+ IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
+ IPW_CMD(VAP_QUIET_INTERVALS);
+ IPW_CMD(VAP_CHANNEL_SWITCH);
+ IPW_CMD(VAP_MANDATORY_CHANNELS);
+ IPW_CMD(VAP_CELL_PWR_LIMIT);
+ IPW_CMD(VAP_CF_PARAM_SET);
+ IPW_CMD(VAP_SET_BEACONING_STATE);
+ IPW_CMD(MEASUREMENT);
+ IPW_CMD(POWER_CAPABILITY);
+ IPW_CMD(SUPPORTED_CHANNELS);
+ IPW_CMD(TPC_REPORT);
+ IPW_CMD(WME_INFO);
+ IPW_CMD(PRODUCTION_COMMAND);
+ default:
+ return "UNKNOWN";
+ }
+}
+#endif /* CONFIG_IPW_DEBUG */
+
+#define HOST_COMPLETE_TIMEOUT HZ
+static int ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
+{
+ int rc = 0;
+
+ if (priv->status & STATUS_HCMD_ACTIVE) {
+ IPW_ERROR("Already sending a command\n");
+ return -1;
+ }
+
+ priv->status |= STATUS_HCMD_ACTIVE;
+
+ IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
+ get_cmd_string(cmd->cmd), cmd->cmd, cmd->len);
+ printk_buf(IPW_DL_HOST_COMMAND, (u8*)cmd->param, cmd->len);
+
+ rc = ipw_queue_tx_hcmd(priv, cmd->cmd, &cmd->param, cmd->len, 0);
+ if (rc)
+ return rc;
+
+ rc = wait_event_interruptible_timeout(
+ priv->wait_command_queue, !(priv->status & STATUS_HCMD_ACTIVE),
+ HOST_COMPLETE_TIMEOUT);
+ if (rc == 0) {
+ IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
+ HOST_COMPLETE_TIMEOUT / (HZ / 1000));
+ priv->status &= ~STATUS_HCMD_ACTIVE;
+ return -EIO;
+ }
+ if (priv->status & STATUS_RF_KILL_MASK) {
+ IPW_DEBUG_INFO("Command aborted due to RF Kill Switch\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int ipw_send_host_complete(struct ipw_priv *priv)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_HOST_COMPLETE,
+ .len = 0
+ };
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send HOST_COMPLETE command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_system_config(struct ipw_priv *priv,
+ struct ipw_sys_config *config)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SYSTEM_CONFIG,
+ .len = sizeof(*config)
+ };
+
+ if (!priv || !config) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param,config,sizeof(*config));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SYSTEM_CONFIG command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_ssid(struct ipw_priv *priv, u8 *ssid, int len)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SSID,
+ .len = min(len, IW_ESSID_MAX_SIZE)
+ };
+
+ if (!priv || !ssid) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param, ssid, cmd.len);
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SSID command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_adapter_address(struct ipw_priv *priv, u8 *mac)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_ADAPTER_ADDRESS,
+ .len = ETH_ALEN
+ };
+
+ if (!priv || !mac) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ IPW_DEBUG_INFO("%s: Setting MAC to " MAC_FMT "\n",
+ priv->net_dev->name, MAC_ARG(mac));
+
+ memcpy(&cmd.param, mac, ETH_ALEN);
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send ADAPTER_ADDRESS command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static void ipw_adapter_restart(void *adapter)
+{
+ struct ipw_priv *priv = adapter;
+
+ if (priv->status & STATUS_RF_KILL_MASK)
+ return;
+
+ ipw_down(priv);
+ if (ipw_up(priv)) {
+ IPW_ERROR("Failed to up device\n");
+ return;
+ }
+}
+
+
+
+
+#define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
+
+static void ipw_scan_check(void *data)
+{
+ struct ipw_priv *priv = data;
+ if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
+ IPW_DEBUG_SCAN("Scan completion watchdog resetting "
+ "adapter (%dms).\n",
+ IPW_SCAN_CHECK_WATCHDOG / 100);
+ ipw_adapter_restart(priv);
+ }
+}
+
+static int ipw_send_scan_request_ext(struct ipw_priv *priv,
+ struct ipw_scan_request_ext *request)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SCAN_REQUEST_EXT,
+ .len = sizeof(*request)
+ };
+
+ if (!priv || !request) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param,request,sizeof(*request));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SCAN_REQUEST_EXT command\n");
+ return -1;
+ }
+
+ queue_delayed_work(priv->workqueue, &priv->scan_check,
+ IPW_SCAN_CHECK_WATCHDOG);
+ return 0;
+}
+
+static int ipw_send_scan_abort(struct ipw_priv *priv)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SCAN_ABORT,
+ .len = 0
+ };
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SCAN_ABORT command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SENSITIVITY_CALIB,
+ .len = sizeof(struct ipw_sensitivity_calib)
+ };
+ struct ipw_sensitivity_calib *calib = (struct ipw_sensitivity_calib *)
+ &cmd.param;
+ calib->beacon_rssi_raw = sens;
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SENSITIVITY CALIB command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_associate(struct ipw_priv *priv,
+ struct ipw_associate *associate)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_ASSOCIATE,
+ .len = sizeof(*associate)
+ };
+
+ if (!priv || !associate) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param,associate,sizeof(*associate));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send ASSOCIATE command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_supported_rates(struct ipw_priv *priv,
+ struct ipw_supported_rates *rates)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SUPPORTED_RATES,
+ .len = sizeof(*rates)
+ };
+
+ if (!priv || !rates) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param,rates,sizeof(*rates));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SUPPORTED_RATES command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_set_random_seed(struct ipw_priv *priv)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_SEED_NUMBER,
+ .len = sizeof(u32)
+ };
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ get_random_bytes(&cmd.param, sizeof(u32));
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send SEED_NUMBER command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+#if 0
+static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_CARD_DISABLE,
+ .len = sizeof(u32)
+ };
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ *((u32*)&cmd.param) = phy_off;
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send CARD_DISABLE command\n");
+ return -1;
+ }
+
+ return 0;
+}
+#endif
+
+static int ipw_send_tx_power(struct ipw_priv *priv,
+ struct ipw_tx_power *power)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_TX_POWER,
+ .len = sizeof(*power)
+ };
+
+ if (!priv || !power) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param,power,sizeof(*power));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send TX_POWER command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
+{
+ struct ipw_rts_threshold rts_threshold = {
+ .rts_threshold = rts,
+ };
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_RTS_THRESHOLD,
+ .len = sizeof(rts_threshold)
+ };
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param, &rts_threshold, sizeof(rts_threshold));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send RTS_THRESHOLD command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
+{
+ struct ipw_frag_threshold frag_threshold = {
+ .frag_threshold = frag,
+ };
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_FRAG_THRESHOLD,
+ .len = sizeof(frag_threshold)
+ };
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ memcpy(&cmd.param, &frag_threshold, sizeof(frag_threshold));
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send FRAG_THRESHOLD command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
+{
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_POWER_MODE,
+ .len = sizeof(u32)
+ };
+ u32 *param = (u32*)(&cmd.param);
+
+ if (!priv) {
+ IPW_ERROR("Invalid args\n");
+ return -1;
+ }
+
+ /* If on battery, set to 3, if AC set to CAM, else user
+ * level */
+ switch (mode) {
+ case IPW_POWER_BATTERY:
+ *param = IPW_POWER_INDEX_3;
+ break;
+ case IPW_POWER_AC:
+ *param = IPW_POWER_MODE_CAM;
+ break;
+ default:
+ *param = mode;
+ break;
+ }
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send POWER_MODE command\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * The IPW device contains a Microwire compatible EEPROM that stores
+ * various data like the MAC address. Usually the firmware has exclusive
+ * access to the eeprom, but during device initialization (before the
+ * device driver has sent the HostComplete command to the firmware) the
+ * device driver has read access to the EEPROM by way of indirect addressing
+ * through a couple of memory mapped registers.
+ *
+ * The following is a simplified implementation for pulling data out of the
+ * the eeprom, along with some helper functions to find information in
+ * the per device private data's copy of the eeprom.
+ *
+ * NOTE: To better understand how these functions work (i.e what is a chip
+ * select and why do have to keep driving the eeprom clock?), read
+ * just about any data sheet for a Microwire compatible EEPROM.
+ */
+
+/* write a 32 bit value into the indirect accessor register */
+static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
+{
+ ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
+
+ /* the eeprom requires some time to complete the operation */
+ udelay(p->eeprom_delay);
+
+ return;
+}
+
+/* perform a chip select operation */
+static inline void eeprom_cs(struct ipw_priv* priv)
+{
+ eeprom_write_reg(priv,0);
+ eeprom_write_reg(priv,EEPROM_BIT_CS);
+ eeprom_write_reg(priv,EEPROM_BIT_CS|EEPROM_BIT_SK);
+ eeprom_write_reg(priv,EEPROM_BIT_CS);
+}
+
+/* perform a chip select operation */
+static inline void eeprom_disable_cs(struct ipw_priv* priv)
+{
+ eeprom_write_reg(priv,EEPROM_BIT_CS);
+ eeprom_write_reg(priv,0);
+ eeprom_write_reg(priv,EEPROM_BIT_SK);
+}
+
+/* push a single bit down to the eeprom */
+static inline void eeprom_write_bit(struct ipw_priv *p,u8 bit)
+{
+ int d = ( bit ? EEPROM_BIT_DI : 0);
+ eeprom_write_reg(p,EEPROM_BIT_CS|d);
+ eeprom_write_reg(p,EEPROM_BIT_CS|d|EEPROM_BIT_SK);
+}
+
+/* push an opcode followed by an address down to the eeprom */
+static void eeprom_op(struct ipw_priv* priv, u8 op, u8 addr)
+{
+ int i;
+
+ eeprom_cs(priv);
+ eeprom_write_bit(priv,1);
+ eeprom_write_bit(priv,op&2);
+ eeprom_write_bit(priv,op&1);
+ for ( i=7; i>=0; i-- ) {
+ eeprom_write_bit(priv,addr&(1<<i));
+ }
+}
+
+/* pull 16 bits off the eeprom, one bit at a time */
+static u16 eeprom_read_u16(struct ipw_priv* priv, u8 addr)
+{
+ int i;
+ u16 r=0;
+
+ /* Send READ Opcode */
+ eeprom_op(priv,EEPROM_CMD_READ,addr);
+
+ /* Send dummy bit */
+ eeprom_write_reg(priv,EEPROM_BIT_CS);
+
+ /* Read the byte off the eeprom one bit at a time */
+ for ( i=0; i<16; i++ ) {
+ u32 data = 0;
+ eeprom_write_reg(priv,EEPROM_BIT_CS|EEPROM_BIT_SK);
+ eeprom_write_reg(priv,EEPROM_BIT_CS);
+ data = ipw_read_reg32(priv,FW_MEM_REG_EEPROM_ACCESS);
+ r = (r<<1) | ((data & EEPROM_BIT_DO)?1:0);
+ }
+
+ /* Send another dummy bit */
+ eeprom_write_reg(priv,0);
+ eeprom_disable_cs(priv);
+
+ return r;
+}
+
+/* helper function for pulling the mac address out of the private */
+/* data's copy of the eeprom data */
+static void eeprom_parse_mac(struct ipw_priv* priv, u8* mac)
+{
+ u8* ee = (u8*)priv->eeprom;
+ memcpy(mac, &ee[EEPROM_MAC_ADDRESS], 6);
+}
+
+/*
+ * Either the device driver (i.e. the host) or the firmware can
+ * load eeprom data into the designated region in SRAM. If neither
+ * happens then the FW will shutdown with a fatal error.
+ *
+ * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
+ * bit needs region of shared SRAM needs to be non-zero.
+ */
+static void ipw_eeprom_init_sram(struct ipw_priv *priv)
+{
+ int i;
+ u16 *eeprom = (u16 *)priv->eeprom;
+
+ IPW_DEBUG_TRACE(">>\n");
+
+ /* read entire contents of eeprom into private buffer */
+ for ( i=0; i<128; i++ )
+ eeprom[i] = eeprom_read_u16(priv,(u8)i);
+
+ /*
+ If the data looks correct, then copy it to our private
+ copy. Otherwise let the firmware know to perform the operation
+ on it's own
+ */
+ if ((priv->eeprom + EEPROM_VERSION) != 0) {
+ IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
+
+ /* write the eeprom data to sram */
+ for( i=0; i<CX2_EEPROM_IMAGE_SIZE; i++ )
+ ipw_write8(priv, IPW_EEPROM_DATA + i,
+ priv->eeprom[i]);
+
+ /* Do not load eeprom data on fatal error or suspend */
+ ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
+ } else {
+ IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
+
+ /* Load eeprom data on fatal error or suspend */
+ ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
+ }
+
+ IPW_DEBUG_TRACE("<<\n");
+}
+
+
+static inline void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
+{
+ count >>= 2;
+ if (!count) return;
+ _ipw_write32(priv, CX2_AUTOINC_ADDR, start);
+ while (count--)
+ _ipw_write32(priv, CX2_AUTOINC_DATA, 0);
+}
+
+static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
+{
+ ipw_zero_memory(priv, CX2_SHARED_SRAM_DMA_CONTROL,
+ CB_NUMBER_OF_ELEMENTS_SMALL *
+ sizeof(struct command_block));
+}
+
+static int ipw_fw_dma_enable(struct ipw_priv *priv)
+{ /* start dma engine but no transfers yet*/
+
+ IPW_DEBUG_FW(">> : \n");
+
+ /* Start the dma */
+ ipw_fw_dma_reset_command_blocks(priv);
+
+ /* Write CB base address */
+ ipw_write_reg32(priv, CX2_DMA_I_CB_BASE, CX2_SHARED_SRAM_DMA_CONTROL);
+
+ IPW_DEBUG_FW("<< : \n");
+ return 0;
+}
+
+static void ipw_fw_dma_abort(struct ipw_priv *priv)
+{
+ u32 control = 0;
+
+ IPW_DEBUG_FW(">> :\n");
+
+ //set the Stop and Abort bit
+ control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
+ ipw_write_reg32(priv, CX2_DMA_I_DMA_CONTROL, control);
+ priv->sram_desc.last_cb_index = 0;
+
+ IPW_DEBUG_FW("<< \n");
+}
+
+static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index, struct command_block *cb)
+{
+ u32 address = CX2_SHARED_SRAM_DMA_CONTROL + (sizeof(struct command_block) * index);
+ IPW_DEBUG_FW(">> :\n");
+
+ ipw_write_indirect(priv, address, (u8*)cb, sizeof(struct command_block));
+
+ IPW_DEBUG_FW("<< :\n");
+ return 0;
+
+}
+
+static int ipw_fw_dma_kick(struct ipw_priv *priv)
+{
+ u32 control = 0;
+ u32 index=0;
+
+ IPW_DEBUG_FW(">> :\n");
+
+ for (index = 0; index < priv->sram_desc.last_cb_index; index++)
+ ipw_fw_dma_write_command_block(priv, index, &priv->sram_desc.cb_list[index]);
+
+ /* Enable the DMA in the CSR register */
+ ipw_clear_bit(priv, CX2_RESET_REG,CX2_RESET_REG_MASTER_DISABLED | CX2_RESET_REG_STOP_MASTER);
+
+ /* Set the Start bit. */
+ control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
+ ipw_write_reg32(priv, CX2_DMA_I_DMA_CONTROL, control);
+
+ IPW_DEBUG_FW("<< :\n");
+ return 0;
+}
+
+static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
+{
+ u32 address;
+ u32 register_value=0;
+ u32 cb_fields_address=0;
+
+ IPW_DEBUG_FW(">> :\n");
+ address = ipw_read_reg32(priv,CX2_DMA_I_CURRENT_CB);
+ IPW_DEBUG_FW_INFO("Current CB is 0x%x \n",address);
+
+ /* Read the DMA Controlor register */
+ register_value = ipw_read_reg32(priv, CX2_DMA_I_DMA_CONTROL);
+ IPW_DEBUG_FW_INFO("CX2_DMA_I_DMA_CONTROL is 0x%x \n",register_value);
+
+ /* Print the CB values*/
+ cb_fields_address = address;
+ register_value = ipw_read_reg32(priv, cb_fields_address);
+ IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n",register_value);
+
+ cb_fields_address += sizeof(u32);
+ register_value = ipw_read_reg32(priv, cb_fields_address);
+ IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n",register_value);
+
+ cb_fields_address += sizeof(u32);
+ register_value = ipw_read_reg32(priv, cb_fields_address);
+ IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n",
+ register_value);
+
+ cb_fields_address += sizeof(u32);
+ register_value = ipw_read_reg32(priv, cb_fields_address);
+ IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n",register_value);
+
+ IPW_DEBUG_FW(">> :\n");
+}
+
+static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
+{
+ u32 current_cb_address = 0;
+ u32 current_cb_index = 0;
+
+ IPW_DEBUG_FW("<< :\n");
+ current_cb_address= ipw_read_reg32(priv, CX2_DMA_I_CURRENT_CB);
+
+ current_cb_index = (current_cb_address - CX2_SHARED_SRAM_DMA_CONTROL )/
+ sizeof (struct command_block);
+
+ IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n",
+ current_cb_index, current_cb_address );
+
+ IPW_DEBUG_FW(">> :\n");
+ return current_cb_index;
+
+}
+
+static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
+ u32 src_address,
+ u32 dest_address,
+ u32 length,
+ int interrupt_enabled,
+ int is_last)
+{
+
+ u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
+ CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
+ CB_DEST_SIZE_LONG;
+ struct command_block *cb;
+ u32 last_cb_element=0;
+
+ IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
+ src_address, dest_address, length);
+
+ if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
+ return -1;
+
+ last_cb_element = priv->sram_desc.last_cb_index;
+ cb = &priv->sram_desc.cb_list[last_cb_element];
+ priv->sram_desc.last_cb_index++;
+
+ /* Calculate the new CB control word */
+ if (interrupt_enabled )
+ control |= CB_INT_ENABLED;
+
+ if (is_last)
+ control |= CB_LAST_VALID;
+
+ control |= length;
+
+ /* Calculate the CB Element's checksum value */
+ cb->status = control ^src_address ^dest_address;
+
+ /* Copy the Source and Destination addresses */
+ cb->dest_addr = dest_address;
+ cb->source_addr = src_address;
+
+ /* Copy the Control Word last */
+ cb->control = control;
+
+ return 0;
+}
+
+static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
+ u32 src_phys,
+ u32 dest_address,
+ u32 length)
+{
+ u32 bytes_left = length;
+ u32 src_offset=0;
+ u32 dest_offset=0;
+ int status = 0;
+ IPW_DEBUG_FW(">> \n");
+ IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
+ src_phys, dest_address, length);
+ while (bytes_left > CB_MAX_LENGTH) {
+ status = ipw_fw_dma_add_command_block( priv,
+ src_phys + src_offset,
+ dest_address + dest_offset,
+ CB_MAX_LENGTH, 0, 0);
+ if (status) {
+ IPW_DEBUG_FW_INFO(": Failed\n");
+ return -1;
+ } else
+ IPW_DEBUG_FW_INFO(": Added new cb\n");
+
+ src_offset += CB_MAX_LENGTH;
+ dest_offset += CB_MAX_LENGTH;
+ bytes_left -= CB_MAX_LENGTH;
+ }
+
+ /* add the buffer tail */
+ if (bytes_left > 0) {
+ status = ipw_fw_dma_add_command_block(
+ priv, src_phys + src_offset,
+ dest_address + dest_offset,
+ bytes_left, 0, 0);
+ if (status) {
+ IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
+ return -1;
+ } else
+ IPW_DEBUG_FW_INFO(": Adding new cb - the buffer tail\n");
+ }
+
+
+ IPW_DEBUG_FW("<< \n");
+ return 0;
+}
+
+static int ipw_fw_dma_wait(struct ipw_priv *priv)
+{
+ u32 current_index = 0;
+ u32 watchdog = 0;
+
+ IPW_DEBUG_FW(">> : \n");
+
+ current_index = ipw_fw_dma_command_block_index(priv);
+ IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%8X\n",
+ (int) priv->sram_desc.last_cb_index);
+
+ while (current_index < priv->sram_desc.last_cb_index) {
+ udelay(50);
+ current_index = ipw_fw_dma_command_block_index(priv);
+
+ watchdog++;
+
+ if (watchdog > 400) {
+ IPW_DEBUG_FW_INFO("Timeout\n");
+ ipw_fw_dma_dump_command_block(priv);
+ ipw_fw_dma_abort(priv);
+ return -1;
+ }
+ }
+
+ ipw_fw_dma_abort(priv);
+
+ /*Disable the DMA in the CSR register*/
+ ipw_set_bit(priv, CX2_RESET_REG,
+ CX2_RESET_REG_MASTER_DISABLED | CX2_RESET_REG_STOP_MASTER);
+
+ IPW_DEBUG_FW("<< dmaWaitSync \n");
+ return 0;
+}
+
+static void ipw_remove_current_network(struct ipw_priv *priv)
+{
+ struct list_head *element, *safe;
+ struct ieee80211_network *network = NULL;
+ list_for_each_safe(element, safe, &priv->ieee->network_list) {
+ network = list_entry(element, struct ieee80211_network, list);
+ if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
+ list_del(element);
+ list_add_tail(&network->list,
+ &priv->ieee->network_free_list);
+ }
+ }
+}
+
+/**
+ * Check that card is still alive.
+ * Reads debug register from domain0.
+ * If card is present, pre-defined value should
+ * be found there.
+ *
+ * @param priv
+ * @return 1 if card is present, 0 otherwise
+ */
+static inline int ipw_alive(struct ipw_priv *priv)
+{
+ return ipw_read32(priv, 0x90) == 0xd55555d5;
+}
+
+static inline int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
+ int timeout)
+{
+ int i = 0;
+
+ do {
+ if ((ipw_read32(priv, addr) & mask) == mask)
+ return i;
+ mdelay(10);
+ i += 10;
+ } while (i < timeout);
+
+ return -ETIME;
+}
+
+/* These functions load the firmware and micro code for the operation of
+ * the ipw hardware. It assumes the buffer has all the bits for the
+ * image and the caller is handling the memory allocation and clean up.
+ */
+
+
+static int ipw_stop_master(struct ipw_priv * priv)
+{
+ int rc;
+
+ IPW_DEBUG_TRACE(">> \n");
+ /* stop master. typical delay - 0 */
+ ipw_set_bit(priv, CX2_RESET_REG, CX2_RESET_REG_STOP_MASTER);
+
+ rc = ipw_poll_bit(priv, CX2_RESET_REG,
+ CX2_RESET_REG_MASTER_DISABLED, 100);
+ if (rc < 0) {
+ IPW_ERROR("stop master failed in 10ms\n");
+ return -1;
+ }
+
+ IPW_DEBUG_INFO("stop master %dms\n", rc);
+
+ return rc;
+}
+
+static void ipw_arc_release(struct ipw_priv *priv)
+{
+ IPW_DEBUG_TRACE(">> \n");
+ mdelay(5);
+
+ ipw_clear_bit(priv, CX2_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
+
+ /* no one knows timing, for safety add some delay */
+ mdelay(5);
+}
+
+struct fw_header {
+ u32 version;
+ u32 mode;
+};
+
+struct fw_chunk {
+ u32 address;
+ u32 length;
+};
+
+#define IPW_FW_MAJOR_VERSION 2
+#define IPW_FW_MINOR_VERSION 2
+
+#define IPW_FW_MINOR(x) ((x & 0xff) >> 8)
+#define IPW_FW_MAJOR(x) (x & 0xff)
+
+#define IPW_FW_VERSION ((IPW_FW_MINOR_VERSION << 8) | \
+ IPW_FW_MAJOR_VERSION)
+
+#define IPW_FW_PREFIX "ipw-" __stringify(IPW_FW_MAJOR_VERSION) \
+"." __stringify(IPW_FW_MINOR_VERSION) "-"
+
+#if IPW_FW_MAJOR_VERSION >= 2 && IPW_FW_MINOR_VERSION > 0
+#define IPW_FW_NAME(x) IPW_FW_PREFIX "" x ".fw"
+#else
+#define IPW_FW_NAME(x) "ipw2200_" x ".fw"
+#endif
+
+static int ipw_load_ucode(struct ipw_priv *priv, u8 * data,
+ size_t len)
+{
+ int rc = 0, i, addr;
+ u8 cr = 0;
+ u16 *image;
+
+ image = (u16 *)data;
+
+ IPW_DEBUG_TRACE(">> \n");
+
+ rc = ipw_stop_master(priv);
+
+ if (rc < 0)
+ return rc;
+
+// spin_lock_irqsave(&priv->lock, flags);
+
+ for (addr = CX2_SHARED_LOWER_BOUND;
+ addr < CX2_REGISTER_DOMAIN1_END; addr += 4) {
+ ipw_write32(priv, addr, 0);
+ }
+
+ /* no ucode (yet) */
+ memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
+ /* destroy DMA queues */
+ /* reset sequence */
+
+ ipw_write_reg32(priv, CX2_MEM_HALT_AND_RESET ,CX2_BIT_HALT_RESET_ON);
+ ipw_arc_release(priv);
+ ipw_write_reg32(priv, CX2_MEM_HALT_AND_RESET, CX2_BIT_HALT_RESET_OFF);
+ mdelay(1);
+
+ /* reset PHY */
+ ipw_write_reg32(priv, CX2_INTERNAL_CMD_EVENT, CX2_BASEBAND_POWER_DOWN);
+ mdelay(1);
+
+ ipw_write_reg32(priv, CX2_INTERNAL_CMD_EVENT, 0);
+ mdelay(1);
+
+ /* enable ucode store */
+ ipw_write_reg8(priv, DINO_CONTROL_REG, 0x0);
+ ipw_write_reg8(priv, DINO_CONTROL_REG, DINO_ENABLE_CS);
+ mdelay(1);
+
+ /* write ucode */
+ /**
+ * @bug
+ * Do NOT set indirect address register once and then
+ * store data to indirect data register in the loop.
+ * It seems very reasonable, but in this case DINO do not
+ * accept ucode. It is essential to set address each time.
+ */
+ /* load new ipw uCode */
+ for (i = 0; i < len / 2; i++)
+ ipw_write_reg16(priv, CX2_BASEBAND_CONTROL_STORE, image[i]);
+
+
+ /* enable DINO */
+ ipw_write_reg8(priv, CX2_BASEBAND_CONTROL_STATUS, 0);
+ ipw_write_reg8(priv, CX2_BASEBAND_CONTROL_STATUS,
+ DINO_ENABLE_SYSTEM );
+
+ /* this is where the igx / win driver deveates from the VAP driver.*/
+
+ /* wait for alive response */
+ for (i = 0; i < 100; i++) {
+ /* poll for incoming data */
+ cr = ipw_read_reg8(priv, CX2_BASEBAND_CONTROL_STATUS);
+ if (cr & DINO_RXFIFO_DATA)
+ break;
+ mdelay(1);
+ }
+
+ if (cr & DINO_RXFIFO_DATA) {
+ /* alive_command_responce size is NOT multiple of 4 */
+ u32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
+
+ for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
+ response_buffer[i] =
+ ipw_read_reg32(priv,
+ CX2_BASEBAND_RX_FIFO_READ);
+ memcpy(&priv->dino_alive, response_buffer,
+ sizeof(priv->dino_alive));
+ if (priv->dino_alive.alive_command == 1
+ && priv->dino_alive.ucode_valid == 1) {
+ rc = 0;
+ IPW_DEBUG_INFO(
+ "Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
+ "of %02d/%02d/%02d %02d:%02d\n",
+ priv->dino_alive.software_revision,
+ priv->dino_alive.software_revision,
+ priv->dino_alive.device_identifier,
+ priv->dino_alive.device_identifier,
+ priv->dino_alive.time_stamp[0],
+ priv->dino_alive.time_stamp[1],
+ priv->dino_alive.time_stamp[2],
+ priv->dino_alive.time_stamp[3],
+ priv->dino_alive.time_stamp[4]);
+ } else {
+ IPW_DEBUG_INFO("Microcode is not alive\n");
+ rc = -EINVAL;
+ }
+ } else {
+ IPW_DEBUG_INFO("No alive response from DINO\n");
+ rc = -ETIME;
+ }
+
+ /* disable DINO, otherwise for some reason
+ firmware have problem getting alive resp. */
+ ipw_write_reg8(priv, CX2_BASEBAND_CONTROL_STATUS, 0);
+
+// spin_unlock_irqrestore(&priv->lock, flags);
+
+ return rc;
+}
+
+static int ipw_load_firmware(struct ipw_priv *priv, u8 * data,
+ size_t len)
+{
+ int rc = -1;
+ int offset = 0;
+ struct fw_chunk *chunk;
+ dma_addr_t shared_phys;
+ u8 *shared_virt;
+
+ IPW_DEBUG_TRACE("<< : \n");
+ shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
+
+ if (!shared_virt)
+ return -ENOMEM;
+
+ memmove(shared_virt, data, len);
+
+ /* Start the Dma */
+ rc = ipw_fw_dma_enable(priv);
+
+ if (priv->sram_desc.last_cb_index > 0) {
+ /* the DMA is already ready this would be a bug. */
+ BUG();
+ goto out;
+ }
+
+ do {
+ chunk = (struct fw_chunk *)(data + offset);
+ offset += sizeof(struct fw_chunk);
+ /* build DMA packet and queue up for sending */
+ /* dma to chunk->address, the chunk->length bytes from data +
+ * offeset*/
+ /* Dma loading */
+ rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
+ chunk->address, chunk->length);
+ if (rc) {
+ IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
+ goto out;
+ }
+
+ offset += chunk->length;
+ } while (offset < len);
+
+ /* Run the DMA and wait for the answer*/
+ rc = ipw_fw_dma_kick(priv);
+ if (rc) {
+ IPW_ERROR("dmaKick Failed\n");
+ goto out;
+ }
+
+ rc = ipw_fw_dma_wait(priv);
+ if (rc) {
+ IPW_ERROR("dmaWaitSync Failed\n");
+ goto out;
+ }
+ out:
+ pci_free_consistent( priv->pci_dev, len, shared_virt, shared_phys);
+ return rc;
+}
+
+/* stop nic */
+static int ipw_stop_nic(struct ipw_priv *priv)
+{
+ int rc = 0;
+
+ /* stop*/
+ ipw_write32(priv, CX2_RESET_REG, CX2_RESET_REG_STOP_MASTER);
+
+ rc = ipw_poll_bit(priv, CX2_RESET_REG,
+ CX2_RESET_REG_MASTER_DISABLED, 500);
+ if (rc < 0) {
+ IPW_ERROR("wait for reg master disabled failed\n");
+ return rc;
+ }
+
+ ipw_set_bit(priv, CX2_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
+
+ return rc;
+}
+
+static void ipw_start_nic(struct ipw_priv *priv)
+{
+ IPW_DEBUG_TRACE(">>\n");
+
+ /* prvHwStartNic release ARC*/
+ ipw_clear_bit(priv, CX2_RESET_REG,
+ CX2_RESET_REG_MASTER_DISABLED |
+ CX2_RESET_REG_STOP_MASTER |
+ CBD_RESET_REG_PRINCETON_RESET);
+
+ /* enable power management */
+ ipw_set_bit(priv, CX2_GP_CNTRL_RW, CX2_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
+
+ IPW_DEBUG_TRACE("<<\n");
+}
+
+static int ipw_init_nic(struct ipw_priv *priv)
+{
+ int rc;
+
+ IPW_DEBUG_TRACE(">>\n");
+ /* reset */
+ /*prvHwInitNic */
+ /* set "initialization complete" bit to move adapter to D0 state */
+ ipw_set_bit(priv, CX2_GP_CNTRL_RW, CX2_GP_CNTRL_BIT_INIT_DONE);
+
+ /* low-level PLL activation */
+ ipw_write32(priv, CX2_READ_INT_REGISTER, CX2_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
+
+ /* wait for clock stabilization */
+ rc = ipw_poll_bit(priv, CX2_GP_CNTRL_RW,
+ CX2_GP_CNTRL_BIT_CLOCK_READY, 250);
+ if (rc < 0 )
+ IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
+
+ /* assert SW reset */
+ ipw_set_bit(priv, CX2_RESET_REG, CX2_RESET_REG_SW_RESET);
+
+ udelay(10);
+
+ /* set "initialization complete" bit to move adapter to D0 state */
+ ipw_set_bit(priv, CX2_GP_CNTRL_RW, CX2_GP_CNTRL_BIT_INIT_DONE);
+
+ IPW_DEBUG_TRACE(">>\n");
+ return 0;
+}
+
+
+/* Call this function from process context, it will sleep in request_firmware.
+ * Probe is an ok place to call this from.
+ */
+static int ipw_reset_nic(struct ipw_priv *priv)
+{
+ int rc = 0;
+
+ IPW_DEBUG_TRACE(">>\n");
+
+ rc = ipw_init_nic(priv);
+
+ /* Clear the 'host command active' bit... */
+ priv->status &= ~STATUS_HCMD_ACTIVE;
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ IPW_DEBUG_TRACE("<<\n");
+ return rc;
+}
+
+static int ipw_get_fw(struct ipw_priv *priv,
+ const struct firmware **fw, const char *name)
+{
+ struct fw_header *header;
+ int rc;
+
+ /* ask firmware_class module to get the boot firmware off disk */
+ rc = request_firmware(fw, name, &priv->pci_dev->dev);
+ if (rc < 0) {
+ IPW_ERROR("%s load failed: Reason %d\n", name, rc);
+ return rc;
+ }
+
+ header = (struct fw_header *)(*fw)->data;
+ if (IPW_FW_MAJOR(header->version) != IPW_FW_MAJOR_VERSION) {
+ IPW_ERROR("'%s' firmware version not compatible (%d != %d)\n",
+ name,
+ IPW_FW_MAJOR(header->version), IPW_FW_MAJOR_VERSION);
+ return -EINVAL;
+ }
+
+ IPW_DEBUG_INFO("Loading firmware '%s' file v%d.%d (%d bytes)\n",
+ name,
+ IPW_FW_MAJOR(header->version),
+ IPW_FW_MINOR(header->version),
+ (*fw)->size - sizeof(struct fw_header));
+ return 0;
+}
+
+#define CX2_RX_BUF_SIZE (3000)
+
+static inline void ipw_rx_queue_reset(struct ipw_priv *priv,
+ struct ipw_rx_queue *rxq)
+{
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+ /* In the reset function, these buffers may have been allocated
+ * to an SKB, so we need to unmap and free potential storage */
+ if (rxq->pool[i].skb != NULL) {
+ pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
+ CX2_RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(rxq->pool[i].skb);
+ }
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+ }
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->processed = RX_QUEUE_SIZE - 1;
+ rxq->free_count = 0;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+#ifdef CONFIG_PM
+static int fw_loaded = 0;
+static const struct firmware *bootfw = NULL;
+static const struct firmware *firmware = NULL;
+static const struct firmware *ucode = NULL;
+#endif
+
+static int ipw_load(struct ipw_priv *priv)
+{
+#ifndef CONFIG_PM
+ const struct firmware *bootfw = NULL;
+ const struct firmware *firmware = NULL;
+ const struct firmware *ucode = NULL;
+#endif
+ int rc = 0, retries = 3;
+
+#ifdef CONFIG_PM
+ if (!fw_loaded) {
+#endif
+ rc = ipw_get_fw(priv, &bootfw, IPW_FW_NAME("boot"));
+ if (rc)
+ goto error;
+
+ switch (priv->ieee->iw_mode) {
+ case IW_MODE_ADHOC:
+ rc = ipw_get_fw(priv, &ucode,
+ IPW_FW_NAME("ibss_ucode"));
+ if (rc)
+ goto error;
+
+ rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("ibss"));
+ break;
+
+#ifdef CONFIG_IPW_PROMISC
+ case IW_MODE_MONITOR:
+ rc = ipw_get_fw(priv, &ucode,
+ IPW_FW_NAME("ibss_ucode"));
+ if (rc)
+ goto error;
+
+ rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("sniffer"));
+ break;
+#endif
+ case IW_MODE_INFRA:
+ rc = ipw_get_fw(priv, &ucode,
+ IPW_FW_NAME("bss_ucode"));
+ if (rc)
+ goto error;
+
+ rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("bss"));
+ break;
+
+ default:
+ rc = -EINVAL;
+ }
+
+ if (rc)
+ goto error;
+
+#ifdef CONFIG_PM
+ fw_loaded = 1;
+ }
+#endif
+
+ if (!priv->rxq)
+ priv->rxq = ipw_rx_queue_alloc(priv);
+ else
+ ipw_rx_queue_reset(priv, priv->rxq);
+ if (!priv->rxq) {
+ IPW_ERROR("Unable to initialize Rx queue\n");
+ goto error;
+ }
+
+ retry:
+ /* Ensure interrupts are disabled */
+ ipw_write32(priv, CX2_INTA_MASK_R, ~CX2_INTA_MASK_ALL);
+ priv->status &= ~STATUS_INT_ENABLED;
+
+ /* ack pending interrupts */
+ ipw_write32(priv, CX2_INTA_RW, CX2_INTA_MASK_ALL);
+
+ ipw_stop_nic(priv);
+
+ rc = ipw_reset_nic(priv);
+ if (rc) {
+ IPW_ERROR("Unable to reset NIC\n");
+ goto error;
+ }
+
+ ipw_zero_memory(priv, CX2_NIC_SRAM_LOWER_BOUND,
+ CX2_NIC_SRAM_UPPER_BOUND - CX2_NIC_SRAM_LOWER_BOUND);
+
+ /* DMA the initial boot firmware into the device */
+ rc = ipw_load_firmware(priv, bootfw->data + sizeof(struct fw_header),
+ bootfw->size - sizeof(struct fw_header));
+ if (rc < 0) {
+ IPW_ERROR("Unable to load boot firmware\n");
+ goto error;
+ }
+
+ /* kick start the device */
+ ipw_start_nic(priv);
+
+ /* wait for the device to finish it's initial startup sequence */
+ rc = ipw_poll_bit(priv, CX2_INTA_RW,
+ CX2_INTA_BIT_FW_INITIALIZATION_DONE, 500);
+ if (rc < 0) {
+ IPW_ERROR("device failed to boot initial fw image\n");
+ goto error;
+ }
+ IPW_DEBUG_INFO("initial device response after %dms\n", rc);
+
+ /* ack fw init done interrupt */
+ ipw_write32(priv, CX2_INTA_RW, CX2_INTA_BIT_FW_INITIALIZATION_DONE);
+
+ /* DMA the ucode into the device */
+ rc = ipw_load_ucode(priv, ucode->data + sizeof(struct fw_header),
+ ucode->size - sizeof(struct fw_header));
+ if (rc < 0) {
+ IPW_ERROR("Unable to load ucode\n");
+ goto error;
+ }
+
+ /* stop nic */
+ ipw_stop_nic(priv);
+
+ /* DMA bss firmware into the device */
+ rc = ipw_load_firmware(priv, firmware->data +
+ sizeof(struct fw_header),
+ firmware->size - sizeof(struct fw_header));
+ if (rc < 0 ) {
+ IPW_ERROR("Unable to load firmware\n");
+ goto error;
+ }
+
+ ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
+
+ rc = ipw_queue_reset(priv);
+ if (rc) {
+ IPW_ERROR("Unable to initialize queues\n");
+ goto error;
+ }
+
+ /* Ensure interrupts are disabled */
+ ipw_write32(priv, CX2_INTA_MASK_R, ~CX2_INTA_MASK_ALL);
+
+ /* kick start the device */
+ ipw_start_nic(priv);
+
+ if (ipw_read32(priv, CX2_INTA_RW) & CX2_INTA_BIT_PARITY_ERROR) {
+ if (retries > 0) {
+ IPW_WARNING("Parity error. Retrying init.\n");
+ retries--;
+ goto retry;
+ }
+
+ IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
+ rc = -EIO;
+ goto error;
+ }
+
+ /* wait for the device */
+ rc = ipw_poll_bit(priv, CX2_INTA_RW,
+ CX2_INTA_BIT_FW_INITIALIZATION_DONE, 500);
+ if (rc < 0) {
+ IPW_ERROR("device failed to start after 500ms\n");
+ goto error;
+ }
+ IPW_DEBUG_INFO("device response after %dms\n", rc);
+
+ /* ack fw init done interrupt */
+ ipw_write32(priv, CX2_INTA_RW, CX2_INTA_BIT_FW_INITIALIZATION_DONE);
+
+ /* read eeprom data and initialize the eeprom region of sram */
+ priv->eeprom_delay = 1;
+ ipw_eeprom_init_sram(priv);
+
+ /* enable interrupts */
+ ipw_enable_interrupts(priv);
+
+ /* Ensure our queue has valid packets */
+ ipw_rx_queue_replenish(priv);
+
+ ipw_write32(priv, CX2_RX_READ_INDEX, priv->rxq->read);
+
+ /* ack pending interrupts */
+ ipw_write32(priv, CX2_INTA_RW, CX2_INTA_MASK_ALL);
+
+#ifndef CONFIG_PM
+ release_firmware(bootfw);
+ release_firmware(ucode);
+ release_firmware(firmware);
+#endif
+ return 0;
+
+ error:
+ if (priv->rxq) {
+ ipw_rx_queue_free(priv, priv->rxq);
+ priv->rxq = NULL;
+ }
+ ipw_tx_queue_free(priv);
+ if (bootfw)
+ release_firmware(bootfw);
+ if (ucode)
+ release_firmware(ucode);
+ if (firmware)
+ release_firmware(firmware);
+#ifdef CONFIG_PM
+ fw_loaded = 0;
+ bootfw = ucode = firmware = NULL;
+#endif
+
+ return rc;
+}
+
+/**
+ * DMA services
+ *
+ * Theory of operation
+ *
+ * A queue is a circular buffers with 'Read' and 'Write' pointers.
+ * 2 empty entries always kept in the buffer to protect from overflow.
+ *
+ * For Tx queue, there are low mark and high mark limits. If, after queuing
+ * the packet for Tx, free space become < low mark, Tx queue stopped. When
+ * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
+ * Tx queue resumed.
+ *
+ * The IPW operates with six queues, one receive queue in the device's
+ * sram, one transmit queue for sending commands to the device firmware,
+ * and four transmit queues for data.
+ *
+ * The four transmit queues allow for performing quality of service (qos)
+ * transmissions as per the 802.11 protocol. Currently Linux does not
+ * provide a mechanism to the user for utilizing prioritized queues, so
+ * we only utilize the first data transmit queue (queue1).
+ */
+
+/**
+ * Driver allocates buffers of this size for Rx
+ */
+
+static inline int ipw_queue_space(const struct clx2_queue *q)
+{
+ int s = q->last_used - q->first_empty;
+ if (s <= 0)
+ s += q->n_bd;
+ s -= 2; /* keep some reserve to not confuse empty and full situations */
+ if (s < 0)
+ s = 0;
+ return s;
+}
+
+static inline int ipw_queue_inc_wrap(int index, int n_bd)
+{
+ return (++index == n_bd) ? 0 : index;
+}
+
+/**
+ * Initialize common DMA queue structure
+ *
+ * @param q queue to init
+ * @param count Number of BD's to allocate. Should be power of 2
+ * @param read_register Address for 'read' register
+ * (not offset within BAR, full address)
+ * @param write_register Address for 'write' register
+ * (not offset within BAR, full address)
+ * @param base_register Address for 'base' register
+ * (not offset within BAR, full address)
+ * @param size Address for 'size' register
+ * (not offset within BAR, full address)
+ */
+static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
+ int count, u32 read, u32 write,
+ u32 base, u32 size)
+{
+ q->n_bd = count;
+
+ q->low_mark = q->n_bd / 4;
+ if (q->low_mark < 4)
+ q->low_mark = 4;
+
+ q->high_mark = q->n_bd / 8;
+ if (q->high_mark < 2)
+ q->high_mark = 2;
+
+ q->first_empty = q->last_used = 0;
+ q->reg_r = read;
+ q->reg_w = write;
+
+ ipw_write32(priv, base, q->dma_addr);
+ ipw_write32(priv, size, count);
+ ipw_write32(priv, read, 0);
+ ipw_write32(priv, write, 0);
+
+ _ipw_read32(priv, 0x90);
+}
+
+static int ipw_queue_tx_init(struct ipw_priv *priv,
+ struct clx2_tx_queue *q,
+ int count, u32 read, u32 write,
+ u32 base, u32 size)
+{
+ struct pci_dev *dev = priv->pci_dev;
+
+ q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
+ if (!q->txb) {
+ IPW_ERROR("vmalloc for auxilary BD structures failed\n");
+ return -ENOMEM;
+ }
+
+ q->bd = pci_alloc_consistent(dev,sizeof(q->bd[0])*count, &q->q.dma_addr);
+ if (!q->bd) {
+ IPW_ERROR("pci_alloc_consistent(%d) failed\n",
+ sizeof(q->bd[0]) * count);
+ kfree(q->txb);
+ q->txb = NULL;
+ return -ENOMEM;
+ }
+
+ ipw_queue_init(priv, &q->q, count, read, write, base, size);
+ return 0;
+}
+
+/**
+ * Free one TFD, those at index [txq->q.last_used].
+ * Do NOT advance any indexes
+ *
+ * @param dev
+ * @param txq
+ */
+static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
+ struct clx2_tx_queue *txq)
+{
+ struct tfd_frame *bd = &txq->bd[txq->q.last_used];
+ struct pci_dev *dev = priv->pci_dev;
+ int i;
+
+ /* classify bd */
+ if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
+ /* nothing to cleanup after for host commands */
+ return;
+
+ /* sanity check */
+ if (bd->u.data.num_chunks > NUM_TFD_CHUNKS) {
+ IPW_ERROR("Too many chunks: %i\n", bd->u.data.num_chunks);
+ /** @todo issue fatal error, it is quite serious situation */
+ return;
+ }
+
+ /* unmap chunks if any */
+ for (i = 0; i < bd->u.data.num_chunks; i++) {
+ pci_unmap_single(dev, bd->u.data.chunk_ptr[i],
+ bd->u.data.chunk_len[i], PCI_DMA_TODEVICE);
+ if (txq->txb[txq->q.last_used]) {
+ ieee80211_txb_free(txq->txb[txq->q.last_used]);
+ txq->txb[txq->q.last_used] = NULL;
+ }
+ }
+}
+
+/**
+ * Deallocate DMA queue.
+ *
+ * Empty queue by removing and destroying all BD's.
+ * Free all buffers.
+ *
+ * @param dev
+ * @param q
+ */
+static void ipw_queue_tx_free(struct ipw_priv *priv,
+ struct clx2_tx_queue *txq)
+{
+ struct clx2_queue *q = &txq->q;
+ struct pci_dev *dev = priv->pci_dev;
+
+ if (q->n_bd == 0)
+ return;
+
+ /* first, empty all BD's */
+ for (; q->first_empty != q->last_used;
+ q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
+ ipw_queue_tx_free_tfd(priv, txq);
+ }
+
+ /* free buffers belonging to queue itself */
+ pci_free_consistent(dev, sizeof(txq->bd[0])*q->n_bd, txq->bd,
+ q->dma_addr);
+ kfree(txq->txb);
+
+ /* 0 fill whole structure */
+ memset(txq, 0, sizeof(*txq));
+}
+
+
+/**
+ * Destroy all DMA queues and structures
+ *
+ * @param priv
+ */
+static void ipw_tx_queue_free(struct ipw_priv *priv)
+{
+ /* Tx CMD queue */
+ ipw_queue_tx_free(priv, &priv->txq_cmd);
+
+ /* Tx queues */
+ ipw_queue_tx_free(priv, &priv->txq[0]);
+ ipw_queue_tx_free(priv, &priv->txq[1]);
+ ipw_queue_tx_free(priv, &priv->txq[2]);
+ ipw_queue_tx_free(priv, &priv->txq[3]);
+}
+
+static void inline __maybe_wake_tx(struct ipw_priv *priv)
+{
+ if (netif_running(priv->net_dev)) {
+ switch (priv->port_type) {
+ case DCR_TYPE_MU_BSS:
+ case DCR_TYPE_MU_IBSS:
+ if (!(priv->status & STATUS_ASSOCIATED)) {
+ return;
+ }
+ }
+ netif_wake_queue(priv->net_dev);
+ }
+
+}
+
+static inline void ipw_create_bssid(struct ipw_priv *priv, u8 *bssid)
+{
+ /* First 3 bytes are manufacturer */
+ bssid[0] = priv->mac_addr[0];
+ bssid[1] = priv->mac_addr[1];
+ bssid[2] = priv->mac_addr[2];
+
+ /* Last bytes are random */
+ get_random_bytes(&bssid[3], ETH_ALEN-3);
+
+ bssid[0] &= 0xfe; /* clear multicast bit */
+ bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */
+}
+
+static inline u8 ipw_add_station(struct ipw_priv *priv, u8 *bssid)
+{
+ struct ipw_station_entry entry;
+ int i;
+
+ for (i = 0; i < priv->num_stations; i++) {
+ if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) {
+ /* Another node is active in network */
+ priv->missed_adhoc_beacons = 0;
+ if (!(priv->config & CFG_STATIC_CHANNEL))
+ /* when other nodes drop out, we drop out */
+ priv->config &= ~CFG_ADHOC_PERSIST;
+
+ return i;
+ }
+ }
+
+ if (i == MAX_STATIONS)
+ return IPW_INVALID_STATION;
+
+ IPW_DEBUG_SCAN("Adding AdHoc station: " MAC_FMT "\n", MAC_ARG(bssid));
+
+ entry.reserved = 0;
+ entry.support_mode = 0;
+ memcpy(entry.mac_addr, bssid, ETH_ALEN);
+ memcpy(priv->stations[i], bssid, ETH_ALEN);
+ ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
+ &entry,
+ sizeof(entry));
+ priv->num_stations++;
+
+ return i;
+}
+
+static inline u8 ipw_find_station(struct ipw_priv *priv, u8 *bssid)
+{
+ int i;
+
+ for (i = 0; i < priv->num_stations; i++)
+ if (!memcmp(priv->stations[i], bssid, ETH_ALEN))
+ return i;
+
+ return IPW_INVALID_STATION;
+}
+
+static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
+{
+ int err;
+
+ if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))) {
+ IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
+ return;
+ }
+
+ IPW_DEBUG_ASSOC("Disassocation attempt from " MAC_FMT " "
+ "on channel %d.\n",
+ MAC_ARG(priv->assoc_request.bssid),
+ priv->assoc_request.channel);
+
+ priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
+ priv->status |= STATUS_DISASSOCIATING;
+
+ if (quiet)
+ priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
+ else
+ priv->assoc_request.assoc_type = HC_DISASSOCIATE;
+ err = ipw_send_associate(priv, &priv->assoc_request);
+ if (err) {
+ IPW_DEBUG_HC("Attempt to send [dis]associate command "
+ "failed.\n");
+ return;
+ }
+
+}
+
+static void ipw_disassociate(void *data)
+{
+ ipw_send_disassociate(data, 0);
+}
+
+static void notify_wx_assoc_event(struct ipw_priv *priv)
+{
+ union iwreq_data wrqu;
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ if (priv->status & STATUS_ASSOCIATED)
+ memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
+ else
+ memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+ wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
+}
+
+struct ipw_status_code {
+ u16 status;
+ const char *reason;
+};
+
+static const struct ipw_status_code ipw_status_codes[] = {
+ {0x00, "Successful"},
+ {0x01, "Unspecified failure"},
+ {0x0A, "Cannot support all requested capabilities in the "
+ "Capability information field"},
+ {0x0B, "Reassociation denied due to inability to confirm that "
+ "association exists"},
+ {0x0C, "Association denied due to reason outside the scope of this "
+ "standard"},
+ {0x0D, "Responding station does not support the specified authentication "
+ "algorithm"},
+ {0x0E, "Received an Authentication frame with authentication sequence "
+ "transaction sequence number out of expected sequence"},
+ {0x0F, "Authentication rejected because of challenge failure"},
+ {0x10, "Authentication rejected due to timeout waiting for next "
+ "frame in sequence"},
+ {0x11, "Association denied because AP is unable to handle additional "
+ "associated stations"},
+ {0x12, "Association denied due to requesting station not supporting all "
+ "of the datarates in the BSSBasicServiceSet Parameter"},
+ {0x13, "Association denied due to requesting station not supporting "
+ "short preamble operation"},
+ {0x14, "Association denied due to requesting station not supporting "
+ "PBCC encoding"},
+ {0x15, "Association denied due to requesting station not supporting "
+ "channel agility"},
+ {0x19, "Association denied due to requesting station not supporting "
+ "short slot operation"},
+ {0x1A, "Association denied due to requesting station not supporting "
+ "DSSS-OFDM operation"},
+ {0x28, "Invalid Information Element"},
+ {0x29, "Group Cipher is not valid"},
+ {0x2A, "Pairwise Cipher is not valid"},
+ {0x2B, "AKMP is not valid"},
+ {0x2C, "Unsupported RSN IE version"},
+ {0x2D, "Invalid RSN IE Capabilities"},
+ {0x2E, "Cipher suite is rejected per security policy"},
+};
+
+#ifdef CONFIG_IPW_DEBUG
+static const char *ipw_get_status_code(u16 status)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
+ if (ipw_status_codes[i].status == status)
+ return ipw_status_codes[i].reason;
+ return "Unknown status value.";
+}
+#endif
+
+static void inline average_init(struct average *avg)
+{
+ memset(avg, 0, sizeof(*avg));
+}
+
+static void inline average_add(struct average *avg, s16 val)
+{
+ avg->sum -= avg->entries[avg->pos];
+ avg->sum += val;
+ avg->entries[avg->pos++] = val;
+ if (unlikely(avg->pos == AVG_ENTRIES)) {
+ avg->init = 1;
+ avg->pos = 0;
+ }
+}
+
+static s16 inline average_value(struct average *avg)
+{
+ if (!unlikely(avg->init)) {
+ if (avg->pos)
+ return avg->sum / avg->pos;
+ return 0;
+ }
+
+ return avg->sum / AVG_ENTRIES;
+}
+
+static void ipw_reset_stats(struct ipw_priv *priv)
+{
+ u32 len = sizeof(u32);
+
+ priv->quality = 0;
+
+ average_init(&priv->average_missed_beacons);
+ average_init(&priv->average_rssi);
+ average_init(&priv->average_noise);
+
+ priv->last_rate = 0;
+ priv->last_missed_beacons = 0;
+ priv->last_rx_packets = 0;
+ priv->last_tx_packets = 0;
+ priv->last_tx_failures = 0;
+
+ /* Firmware managed, reset only when NIC is restarted, so we have to
+ * normalize on the current value */
+ ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
+ &priv->last_rx_err, &len);
+ ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
+ &priv->last_tx_failures, &len);
+
+ /* Driver managed, reset with each association */
+ priv->missed_adhoc_beacons = 0;
+ priv->missed_beacons = 0;
+ priv->tx_packets = 0;
+ priv->rx_packets = 0;
+
+}
+
+
+static inline u32 ipw_get_max_rate(struct ipw_priv *priv)
+{
+ u32 i = 0x80000000;
+ u32 mask = priv->rates_mask;
+ /* If currently associated in B mode, restrict the maximum
+ * rate match to B rates */
+ if (priv->assoc_request.ieee_mode == IPW_B_MODE)
+ mask &= IEEE80211_CCK_RATES_MASK;
+
+ /* TODO: Verify that the rate is supported by the current rates
+ * list. */
+
+ while (i && !(mask & i)) i >>= 1;
+ switch (i) {
+ case IEEE80211_CCK_RATE_1MB_MASK: return 1000000;
+ case IEEE80211_CCK_RATE_2MB_MASK: return 2000000;
+ case IEEE80211_CCK_RATE_5MB_MASK: return 5500000;
+ case IEEE80211_OFDM_RATE_6MB_MASK: return 6000000;
+ case IEEE80211_OFDM_RATE_9MB_MASK: return 9000000;
+ case IEEE80211_CCK_RATE_11MB_MASK: return 11000000;
+ case IEEE80211_OFDM_RATE_12MB_MASK: return 12000000;
+ case IEEE80211_OFDM_RATE_18MB_MASK: return 18000000;
+ case IEEE80211_OFDM_RATE_24MB_MASK: return 24000000;
+ case IEEE80211_OFDM_RATE_36MB_MASK: return 36000000;
+ case IEEE80211_OFDM_RATE_48MB_MASK: return 48000000;
+ case IEEE80211_OFDM_RATE_54MB_MASK: return 54000000;
+ }
+
+ if (priv->ieee->mode == IEEE_B)
+ return 11000000;
+ else
+ return 54000000;
+}
+
+static u32 ipw_get_current_rate(struct ipw_priv *priv)
+{
+ u32 rate, len = sizeof(rate);
+ int err;
+
+ if (!(priv->status & STATUS_ASSOCIATED))
+ return 0;
+
+ if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
+ err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
+ &len);
+ if (err) {
+ IPW_DEBUG_INFO("failed querying ordinals.\n");
+ return 0;
+ }
+ } else
+ return ipw_get_max_rate(priv);
+
+ switch (rate) {
+ case IPW_TX_RATE_1MB: return 1000000;
+ case IPW_TX_RATE_2MB: return 2000000;
+ case IPW_TX_RATE_5MB: return 5500000;
+ case IPW_TX_RATE_6MB: return 6000000;
+ case IPW_TX_RATE_9MB: return 9000000;
+ case IPW_TX_RATE_11MB: return 11000000;
+ case IPW_TX_RATE_12MB: return 12000000;
+ case IPW_TX_RATE_18MB: return 18000000;
+ case IPW_TX_RATE_24MB: return 24000000;
+ case IPW_TX_RATE_36MB: return 36000000;
+ case IPW_TX_RATE_48MB: return 48000000;
+ case IPW_TX_RATE_54MB: return 54000000;
+ }
+
+ return 0;
+}
+
+#define PERFECT_RSSI (-50)
+#define WORST_RSSI (-85)
+#define IPW_STATS_INTERVAL (2 * HZ)
+static void ipw_gather_stats(struct ipw_priv *priv)
+{
+ u32 rx_err, rx_err_delta, rx_packets_delta;
+ u32 tx_failures, tx_failures_delta, tx_packets_delta;
+ u32 missed_beacons_percent, missed_beacons_delta;
+ u32 quality = 0;
+ u32 len = sizeof(u32);
+ s16 rssi;
+ u32 beacon_quality, signal_quality, tx_quality, rx_quality,
+ rate_quality;
+
+ if (!(priv->status & STATUS_ASSOCIATED)) {
+ priv->quality = 0;
+ return;
+ }
+
+ /* Update the statistics */
+ ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
+ &priv->missed_beacons, &len);
+ missed_beacons_delta = priv->missed_beacons -
+ priv->last_missed_beacons;
+ priv->last_missed_beacons = priv->missed_beacons;
+ if (priv->assoc_request.beacon_interval) {
+ missed_beacons_percent = missed_beacons_delta *
+ (HZ * priv->assoc_request.beacon_interval) /
+ (IPW_STATS_INTERVAL * 10);
+ } else {
+ missed_beacons_percent = 0;
+ }
+ average_add(&priv->average_missed_beacons, missed_beacons_percent);
+
+ ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
+ rx_err_delta = rx_err - priv->last_rx_err;
+ priv->last_rx_err = rx_err;
+
+ ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
+ tx_failures_delta = tx_failures - priv->last_tx_failures;
+ priv->last_tx_failures = tx_failures;
+
+ rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
+ priv->last_rx_packets = priv->rx_packets;
+
+ tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
+ priv->last_tx_packets = priv->tx_packets;
+
+ /* Calculate quality based on the following:
+ *
+ * Missed beacon: 100% = 0, 0% = 70% missed
+ * Rate: 60% = 1Mbs, 100% = Max
+ * Rx and Tx errors represent a straight % of total Rx/Tx
+ * RSSI: 100% = > -50, 0% = < -80
+ * Rx errors: 100% = 0, 0% = 50% missed
+ *
+ * The lowest computed quality is used.
+ *
+ */
+#define BEACON_THRESHOLD 5
+ beacon_quality = 100 - missed_beacons_percent;
+ if (beacon_quality < BEACON_THRESHOLD)
+ beacon_quality = 0;
+ else
+ beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
+ (100 - BEACON_THRESHOLD);
+ IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
+ beacon_quality, missed_beacons_percent);
+
+ priv->last_rate = ipw_get_current_rate(priv);
+ rate_quality = priv->last_rate * 40 / priv->last_rate + 60;
+ IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
+ rate_quality, priv->last_rate / 1000000);
+
+ if (rx_packets_delta > 100 &&
+ rx_packets_delta + rx_err_delta)
+ rx_quality = 100 - (rx_err_delta * 100) /
+ (rx_packets_delta + rx_err_delta);
+ else
+ rx_quality = 100;
+ IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n",
+ rx_quality, rx_err_delta, rx_packets_delta);
+
+ if (tx_packets_delta > 100 &&
+ tx_packets_delta + tx_failures_delta)
+ tx_quality = 100 - (tx_failures_delta * 100) /
+ (tx_packets_delta + tx_failures_delta);
+ else
+ tx_quality = 100;
+ IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n",
+ tx_quality, tx_failures_delta, tx_packets_delta);
+
+ rssi = average_value(&priv->average_rssi);
+ if (rssi > PERFECT_RSSI)
+ signal_quality = 100;
+ else if (rssi < WORST_RSSI)
+ signal_quality = 0;
+ else
+ signal_quality = (rssi - WORST_RSSI) * 100 /
+ (PERFECT_RSSI - WORST_RSSI);
+ IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
+ signal_quality, rssi);
+
+ quality = min(beacon_quality,
+ min(rate_quality,
+ min(tx_quality, min(rx_quality, signal_quality))));
+ if (quality == beacon_quality)
+ IPW_DEBUG_STATS(
+ "Quality (%d%%): Clamped to missed beacons.\n",
+ quality);
+ if (quality == rate_quality)
+ IPW_DEBUG_STATS(
+ "Quality (%d%%): Clamped to rate quality.\n",
+ quality);
+ if (quality == tx_quality)
+ IPW_DEBUG_STATS(
+ "Quality (%d%%): Clamped to Tx quality.\n",
+ quality);
+ if (quality == rx_quality)
+ IPW_DEBUG_STATS(
+ "Quality (%d%%): Clamped to Rx quality.\n",
+ quality);
+ if (quality == signal_quality)
+ IPW_DEBUG_STATS(
+ "Quality (%d%%): Clamped to signal quality.\n",
+ quality);
+
+ priv->quality = quality;
+
+ queue_delayed_work(priv->workqueue, &priv->gather_stats,
+ IPW_STATS_INTERVAL);
+}
+
+/**
+ * Handle host notification packet.
+ * Called from interrupt routine
+ */
+static inline void ipw_rx_notification(struct ipw_priv* priv,
+ struct ipw_rx_notification *notif)
+{
+ IPW_DEBUG_NOTIF("type = %i (%d bytes)\n",
+ notif->subtype, notif->size);
+
+ switch (notif->subtype) {
+ case HOST_NOTIFICATION_STATUS_ASSOCIATED: {
+ struct notif_association *assoc = ¬if->u.assoc;
+
+ switch (assoc->state) {
+ case CMAS_ASSOCIATED: {
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "associated: '%s' " MAC_FMT " \n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+
+ switch (priv->ieee->iw_mode) {
+ case IW_MODE_INFRA:
+ memcpy(priv->ieee->bssid, priv->bssid,
+ ETH_ALEN);
+ break;
+
+ case IW_MODE_ADHOC:
+ memcpy(priv->ieee->bssid, priv->bssid,
+ ETH_ALEN);
+
+ /* clear out the station table */
+ priv->num_stations = 0;
+
+ IPW_DEBUG_ASSOC("queueing adhoc check\n");
+ queue_delayed_work(priv->workqueue,
+ &priv->adhoc_check,
+ priv->assoc_request.beacon_interval);
+ break;
+ }
+
+ priv->status &= ~STATUS_ASSOCIATING;
+ priv->status |= STATUS_ASSOCIATED;
+
+ netif_carrier_on(priv->net_dev);
+ if (netif_queue_stopped(priv->net_dev)) {
+ IPW_DEBUG_NOTIF("waking queue\n");
+ netif_wake_queue(priv->net_dev);
+ } else {
+ IPW_DEBUG_NOTIF("starting queue\n");
+ netif_start_queue(priv->net_dev);
+ }
+
+ ipw_reset_stats(priv);
+ /* Ensure the rate is updated immediately */
+ priv->last_rate = ipw_get_current_rate(priv);
+ schedule_work(&priv->gather_stats);
+ notify_wx_assoc_event(priv);
+
+/* queue_delayed_work(priv->workqueue,
+ &priv->request_scan,
+ SCAN_ASSOCIATED_INTERVAL);
+*/
+ break;
+ }
+
+ case CMAS_AUTHENTICATED: {
+ if (priv->status & (STATUS_ASSOCIATED | STATUS_AUTH)) {
+#ifdef CONFIG_IPW_DEBUG
+ struct notif_authenticate *auth = ¬if->u.auth;
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "deauthenticated: '%s' " MAC_FMT ": (0x%04X) - %s \n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid),
+ ntohs(auth->status),
+ ipw_get_status_code(ntohs(auth->status)));
+#endif
+
+ priv->status &= ~(STATUS_ASSOCIATING |
+ STATUS_AUTH |
+ STATUS_ASSOCIATED);
+
+ netif_carrier_off(priv->net_dev);
+ netif_stop_queue(priv->net_dev);
+ queue_work(priv->workqueue, &priv->request_scan);
+ notify_wx_assoc_event(priv);
+ break;
+ }
+
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "authenticated: '%s' " MAC_FMT "\n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+ break;
+ }
+
+ case CMAS_INIT: {
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "disassociated: '%s' " MAC_FMT " \n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+
+ priv->status &= ~(
+ STATUS_DISASSOCIATING |
+ STATUS_ASSOCIATING |
+ STATUS_ASSOCIATED |
+ STATUS_AUTH);
+
+ netif_stop_queue(priv->net_dev);
+ if (!(priv->status & STATUS_ROAMING)) {
+ netif_carrier_off(priv->net_dev);
+ notify_wx_assoc_event(priv);
+
+ /* Cancel any queued work ... */
+ cancel_delayed_work(&priv->request_scan);
+ cancel_delayed_work(&priv->adhoc_check);
+
+ /* Queue up another scan... */
+ queue_work(priv->workqueue,
+ &priv->request_scan);
+
+ cancel_delayed_work(&priv->gather_stats);
+ } else {
+ priv->status |= STATUS_ROAMING;
+ queue_work(priv->workqueue,
+ &priv->request_scan);
+ }
+
+ ipw_reset_stats(priv);
+ break;
+ }
+
+ default:
+ IPW_ERROR("assoc: unknown (%d)\n",
+ assoc->state);
+ break;
+ }
+
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_AUTHENTICATE: {
+ struct notif_authenticate *auth = ¬if->u.auth;
+ switch (auth->state) {
+ case CMAS_AUTHENTICATED:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
+ "authenticated: '%s' " MAC_FMT " \n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+ priv->status |= STATUS_AUTH;
+ break;
+
+ case CMAS_INIT:
+ if (priv->status & STATUS_AUTH) {
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "authentication failed (0x%04X): %s\n",
+ ntohs(auth->status),
+ ipw_get_status_code(ntohs(auth->status)));
+ }
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "deauthenticated: '%s' " MAC_FMT "\n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+
+ priv->status &= ~(STATUS_ASSOCIATING |
+ STATUS_AUTH |
+ STATUS_ASSOCIATED);
+
+ netif_carrier_off(priv->net_dev);
+ netif_stop_queue(priv->net_dev);
+ queue_work(priv->workqueue, &priv->request_scan);
+ notify_wx_assoc_event(priv);
+ break;
+
+ case CMAS_TX_AUTH_SEQ_1:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUTH_SEQ_1\n");
+ break;
+ case CMAS_RX_AUTH_SEQ_2:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUTH_SEQ_2\n");
+ break;
+ case CMAS_AUTH_SEQ_1_PASS:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUTH_SEQ_1_PASS\n");
+ break;
+ case CMAS_AUTH_SEQ_1_FAIL:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUTH_SEQ_1_FAIL\n");
+ break;
+ case CMAS_TX_AUTH_SEQ_3:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUTH_SEQ_3\n");
+ break;
+ case CMAS_RX_AUTH_SEQ_4:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "RX_AUTH_SEQ_4\n");
+ break;
+ case CMAS_AUTH_SEQ_2_PASS:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUTH_SEQ_2_PASS\n");
+ break;
+ case CMAS_AUTH_SEQ_2_FAIL:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "AUT_SEQ_2_FAIL\n");
+ break;
+ case CMAS_TX_ASSOC:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "TX_ASSOC\n");
+ break;
+ case CMAS_RX_ASSOC_RESP:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "RX_ASSOC_RESP\n");
+ break;
+ case CMAS_ASSOCIATED:
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
+ "ASSOCIATED\n");
+ break;
+ default:
+ IPW_DEBUG_NOTIF("auth: failure - %d\n", auth->state);
+ break;
+ }
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT: {
+ struct notif_channel_result *x = ¬if->u.channel_result;
+
+ if (notif->size == sizeof(*x)) {
+ IPW_DEBUG_SCAN("Scan result for channel %d\n",
+ x->channel_num);
+ } else {
+ IPW_DEBUG_SCAN("Scan result of wrong size %d "
+ "(should be %d)\n",
+ notif->size,sizeof(*x));
+ }
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED: {
+ struct notif_scan_complete* x = ¬if->u.scan_complete;
+ if (notif->size == sizeof(*x)) {
+ IPW_DEBUG_SCAN("Scan completed: type %d, %d channels, "
+ "%d status\n",
+ x->scan_type,
+ x->num_channels,
+ x->status);
+ } else {
+ IPW_ERROR("Scan completed of wrong size %d "
+ "(should be %d)\n",
+ notif->size,sizeof(*x));
+ }
+
+ priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
+
+ cancel_delayed_work(&priv->scan_check);
+
+ if (!(priv->status & (STATUS_ASSOCIATED |
+ STATUS_ASSOCIATING |
+ STATUS_ROAMING |
+ STATUS_DISASSOCIATING)))
+ queue_work(priv->workqueue, &priv->associate);
+ else if (priv->status & STATUS_ROAMING) {
+ /* If a scan completed and we are in roam mode, then
+ * the scan that completed was the one requested as a
+ * result of entering roam... so, schedule the
+ * roam work */
+ queue_work(priv->workqueue, &priv->roam);
+ } else if (priv->status & STATUS_SCAN_PENDING)
+ queue_work(priv->workqueue, &priv->request_scan);
+
+ priv->ieee->scans++;
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_FRAG_LENGTH: {
+ struct notif_frag_length *x = ¬if->u.frag_len;
+
+ if (notif->size == sizeof(*x)) {
+ IPW_ERROR("Frag length: %d\n", x->frag_length);
+ } else {
+ IPW_ERROR("Frag length of wrong size %d "
+ "(should be %d)\n",
+ notif->size, sizeof(*x));
+ }
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION: {
+ struct notif_link_deterioration *x =
+ ¬if->u.link_deterioration;
+ if (notif->size==sizeof(*x)) {
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
+ "link deterioration: '%s' " MAC_FMT " \n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+ memcpy(&priv->last_link_deterioration, x, sizeof(*x));
+ } else {
+ IPW_ERROR("Link Deterioration of wrong size %d "
+ "(should be %d)\n",
+ notif->size,sizeof(*x));
+ }
+ break;
+ }
+
+ case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE: {
+ IPW_ERROR("Dino config\n");
+ if (priv->hcmd && priv->hcmd->cmd == HOST_CMD_DINO_CONFIG) {
+ /* TODO: Do anything special? */
+ } else {
+ IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
+ }
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_BEACON_STATE: {
+ struct notif_beacon_state *x = ¬if->u.beacon_state;
+ if (notif->size != sizeof(*x)) {
+ IPW_ERROR("Beacon state of wrong size %d (should "
+ "be %d)\n", notif->size, sizeof(*x));
+ break;
+ }
+
+ if (x->state == HOST_NOTIFICATION_STATUS_BEACON_MISSING) {
+ if (priv->status & STATUS_SCANNING) {
+ /* Stop scan to keep fw from getting
+ * stuck... */
+ queue_work(priv->workqueue,
+ &priv->abort_scan);
+ }
+
+ if (x->number > priv->missed_beacon_threshold &&
+ priv->status & STATUS_ASSOCIATED) {
+ IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
+ IPW_DL_STATE,
+ "Missed beacon: %d - disassociate\n",
+ x->number);
+ queue_work(priv->workqueue,
+ &priv->disassociate);
+ } else if (x->number > priv->roaming_threshold) {
+ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
+ "Missed beacon: %d - initiate "
+ "roaming\n",
+ x->number);
+ queue_work(priv->workqueue,
+ &priv->roam);
+ } else {
+ IPW_DEBUG_NOTIF("Missed beacon: %d\n",
+ x->number);
+ }
+
+ priv->notif_missed_beacons = x->number;
+
+ }
+
+
+ break;
+ }
+
+ case HOST_NOTIFICATION_STATUS_TGI_TX_KEY: {
+ struct notif_tgi_tx_key *x = ¬if->u.tgi_tx_key;
+ if (notif->size==sizeof(*x)) {
+ IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
+ "0x%02x station %d\n",
+ x->key_state,x->security_type,
+ x->station_index);
+ break;
+ }
+
+ IPW_ERROR("TGi Tx Key of wrong size %d (should be %d)\n",
+ notif->size,sizeof(*x));
+ break;
+ }
+
+ case HOST_NOTIFICATION_CALIB_KEEP_RESULTS: {
+ struct notif_calibration *x = ¬if->u.calibration;
+
+ if (notif->size == sizeof(*x)) {
+ memcpy(&priv->calib, x, sizeof(*x));
+ IPW_DEBUG_INFO("TODO: Calibration\n");
+ break;
+ }
+
+ IPW_ERROR("Calibration of wrong size %d (should be %d)\n",
+ notif->size,sizeof(*x));
+ break;
+ }
+
+ case HOST_NOTIFICATION_NOISE_STATS: {
+ if (notif->size == sizeof(u32)) {
+ priv->last_noise = (u8)(notif->u.noise.value & 0xff);
+ average_add(&priv->average_noise, priv->last_noise);
+ break;
+ }
+
+ IPW_ERROR("Noise stat is wrong size %d (should be %d)\n",
+ notif->size, sizeof(u32));
+ break;
+ }
+
+ default:
+ IPW_ERROR("Unknown notification: "
+ "subtype=%d,flags=0x%2x,size=%d\n",
+ notif->subtype, notif->flags, notif->size);
+ }
+}
+
+/**
+ * Destroys all DMA structures and initialise them again
+ *
+ * @param priv
+ * @return error code
+ */
+static int ipw_queue_reset(struct ipw_priv *priv)
+{
+ int rc = 0;
+ /** @todo customize queue sizes */
+ int nTx = 64, nTxCmd = 8;
+ ipw_tx_queue_free(priv);
+ /* Tx CMD queue */
+ rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
+ CX2_TX_CMD_QUEUE_READ_INDEX,
+ CX2_TX_CMD_QUEUE_WRITE_INDEX,
+ CX2_TX_CMD_QUEUE_BD_BASE,
+ CX2_TX_CMD_QUEUE_BD_SIZE);
+ if (rc) {
+ IPW_ERROR("Tx Cmd queue init failed\n");
+ goto error;
+ }
+ /* Tx queue(s) */
+ rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
+ CX2_TX_QUEUE_0_READ_INDEX,
+ CX2_TX_QUEUE_0_WRITE_INDEX,
+ CX2_TX_QUEUE_0_BD_BASE,
+ CX2_TX_QUEUE_0_BD_SIZE);
+ if (rc) {
+ IPW_ERROR("Tx 0 queue init failed\n");
+ goto error;
+ }
+ rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
+ CX2_TX_QUEUE_1_READ_INDEX,
+ CX2_TX_QUEUE_1_WRITE_INDEX,
+ CX2_TX_QUEUE_1_BD_BASE,
+ CX2_TX_QUEUE_1_BD_SIZE);
+ if (rc) {
+ IPW_ERROR("Tx 1 queue init failed\n");
+ goto error;
+ }
+ rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
+ CX2_TX_QUEUE_2_READ_INDEX,
+ CX2_TX_QUEUE_2_WRITE_INDEX,
+ CX2_TX_QUEUE_2_BD_BASE,
+ CX2_TX_QUEUE_2_BD_SIZE);
+ if (rc) {
+ IPW_ERROR("Tx 2 queue init failed\n");
+ goto error;
+ }
+ rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
+ CX2_TX_QUEUE_3_READ_INDEX,
+ CX2_TX_QUEUE_3_WRITE_INDEX,
+ CX2_TX_QUEUE_3_BD_BASE,
+ CX2_TX_QUEUE_3_BD_SIZE);
+ if (rc) {
+ IPW_ERROR("Tx 3 queue init failed\n");
+ goto error;
+ }
+ /* statistics */
+ priv->rx_bufs_min = 0;
+ priv->rx_pend_max = 0;
+ return rc;
+
+ error:
+ ipw_tx_queue_free(priv);
+ return rc;
+}
+
+/**
+ * Reclaim Tx queue entries no more used by NIC.
+ *
+ * When FW adwances 'R' index, all entries between old and
+ * new 'R' index need to be reclaimed. As result, some free space
+ * forms. If there is enough free space (> low mark), wake Tx queue.
+ *
+ * @note Need to protect against garbage in 'R' index
+ * @param priv
+ * @param txq
+ * @param qindex
+ * @return Number of used entries remains in the queue
+ */
+static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
+ struct clx2_tx_queue *txq, int qindex)
+{
+ u32 hw_tail;
+ int used;
+ struct clx2_queue *q = &txq->q;
+
+ hw_tail = ipw_read32(priv, q->reg_r);
+ if (hw_tail >= q->n_bd) {
+ IPW_ERROR
+ ("Read index for DMA queue (%d) is out of range [0-%d)\n",
+ hw_tail, q->n_bd);
+ goto done;
+ }
+ for (; q->last_used != hw_tail;
+ q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
+ ipw_queue_tx_free_tfd(priv, txq);
+ priv->tx_packets++;
+ }
+ done:
+ if (ipw_queue_space(q) > q->low_mark && qindex >= 0) {
+ __maybe_wake_tx(priv);
+ }
+ used = q->first_empty - q->last_used;
+ if (used < 0)
+ used += q->n_bd;
+
+ return used;
+}
+
+static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
+ int len, int sync)
+{
+ struct clx2_tx_queue *txq = &priv->txq_cmd;
+ struct clx2_queue *q = &txq->q;
+ struct tfd_frame *tfd;
+
+ if (ipw_queue_space(q) < (sync ? 1 : 2)) {
+ IPW_ERROR("No space for Tx\n");
+ return -EBUSY;
+ }
+
+ tfd = &txq->bd[q->first_empty];
+ txq->txb[q->first_empty] = NULL;
+
+ memset(tfd, 0, sizeof(*tfd));
+ tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
+ tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
+ priv->hcmd_seq++;
+ tfd->u.cmd.index = hcmd;
+ tfd->u.cmd.length = len;
+ memcpy(tfd->u.cmd.payload, buf, len);
+ q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
+ ipw_write32(priv, q->reg_w, q->first_empty);
+ _ipw_read32(priv, 0x90);
+
+ return 0;
+}
+
+
+
+/*
+ * Rx theory of operation
+ *
+ * The host allocates 32 DMA target addresses and passes the host address
+ * to the firmware at register CX2_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
+ * 0 to 31
+ *
+ * Rx Queue Indexes
+ * The host/firmware share two index registers for managing the Rx buffers.
+ *
+ * The READ index maps to the first position that the firmware may be writing
+ * to -- the driver can read up to (but not including) this position and get
+ * good data.
+ * The READ index is managed by the firmware once the card is enabled.
+ *
+ * The WRITE index maps to the last position the driver has read from -- the
+ * position preceding WRITE is the last slot the firmware can place a packet.
+ *
+ * The queue is empty (no good data) if WRITE = READ - 1, and is full if
+ * WRITE = READ.
+ *
+ * During initialization the host sets up the READ queue position to the first
+ * INDEX position, and WRITE to the last (READ - 1 wrapped)
+ *
+ * When the firmware places a packet in a buffer it will advance the READ index
+ * and fire the RX interrupt. The driver can then query the READ index and
+ * process as many packets as possible, moving the WRITE index forward as it
+ * resets the Rx queue buffers with new memory.
+ *
+ * The management in the driver is as follows:
+ * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When
+ * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
+ * to replensish the ipw->rxq->rx_free.
+ * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
+ * ipw->rxq is replenished and the READ INDEX is updated (updating the
+ * 'processed' and 'read' driver indexes as well)
+ * + A received packet is processed and handed to the kernel network stack,
+ * detached from the ipw->rxq. The driver 'processed' index is updated.
+ * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
+ * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
+ * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there
+ * were enough free buffers and RX_STALLED is set it is cleared.
+ *
+ *
+ * Driver sequence:
+ *
+ * ipw_rx_queue_alloc() Allocates rx_free
+ * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls
+ * ipw_rx_queue_restock
+ * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx
+ * queue, updates firmware pointers, and updates
+ * the WRITE index. If insufficient rx_free buffers
+ * are available, schedules ipw_rx_queue_replenish
+ *
+ * -- enable interrupts --
+ * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the
+ * READ INDEX, detaching the SKB from the pool.
+ * Moves the packet buffer from queue to rx_used.
+ * Calls ipw_rx_queue_restock to refill any empty
+ * slots.
+ * ...
+ *
+ */
+
+/*
+ * If there are slots in the RX queue that need to be restocked,
+ * and we have free pre-allocated buffers, fill the ranks as much
+ * as we can pulling from rx_free.
+ *
+ * This moves the 'write' index forward to catch up with 'processed', and
+ * also updates the memory address in the firmware to reference the new
+ * target buffer.
+ */
+static void ipw_rx_queue_restock(struct ipw_priv *priv)
+{
+ struct ipw_rx_queue *rxq = priv->rxq;
+ struct list_head *element;
+ struct ipw_rx_mem_buffer *rxb;
+ unsigned long flags;
+ int write;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ write = rxq->write;
+ while ((rxq->write != rxq->processed) && (rxq->free_count)) {
+ element = rxq->rx_free.next;
+ rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
+ list_del(element);
+
+ ipw_write32(priv, CX2_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
+ rxb->dma_addr);
+ rxq->queue[rxq->write] = rxb;
+ rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
+ rxq->free_count--;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ /* If the pre-allocated buffer pool is dropping low, schedule to
+ * refill it */
+ if (rxq->free_count <= RX_LOW_WATERMARK)
+ queue_work(priv->workqueue, &priv->rx_replenish);
+
+ /* If we've added more space for the firmware to place data, tell it */
+ if (write != rxq->write)
+ ipw_write32(priv, CX2_RX_WRITE_INDEX, rxq->write);
+}
+
+/*
+ * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
+ * Also restock the Rx queue via ipw_rx_queue_restock.
+ *
+ * This is called as a scheduled work item (except for during intialization)
+ */
+static void ipw_rx_queue_replenish(void *data)
+{
+ struct ipw_priv *priv = data;
+ struct ipw_rx_queue *rxq = priv->rxq;
+ struct list_head *element;
+ struct ipw_rx_mem_buffer *rxb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ while (!list_empty(&rxq->rx_used)) {
+ element = rxq->rx_used.next;
+ rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
+ rxb->skb = alloc_skb(CX2_RX_BUF_SIZE, GFP_ATOMIC);
+ if (!rxb->skb) {
+ printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
+ priv->net_dev->name);
+ /* We don't reschedule replenish work here -- we will
+ * call the restock method and if it still needs
+ * more buffers it will schedule replenish */
+ break;
+ }
+ list_del(element);
+
+ rxb->rxb = (struct ipw_rx_buffer *)rxb->skb->data;
+ rxb->dma_addr = pci_map_single(
+ priv->pci_dev, rxb->skb->data, CX2_RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ ipw_rx_queue_restock(priv);
+}
+
+/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
+ * If an SKB has been detached, the POOL needs to have it's SKB set to NULL
+ * This free routine walks the list of POOL entries and if SKB is set to
+ * non NULL it is unmapped and freed
+ */
+static void ipw_rx_queue_free(struct ipw_priv *priv,
+ struct ipw_rx_queue *rxq)
+{
+ int i;
+
+ if (!rxq)
+ return;
+
+ for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
+ if (rxq->pool[i].skb != NULL) {
+ pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
+ CX2_RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(rxq->pool[i].skb);
+ }
+ }
+
+ kfree(rxq);
+}
+
+static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
+{
+ struct ipw_rx_queue *rxq;
+ int i;
+
+ rxq = (struct ipw_rx_queue *)kmalloc(sizeof(*rxq), GFP_KERNEL);
+ memset(rxq, 0, sizeof(*rxq));
+ spin_lock_init(&rxq->lock);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->processed = RX_QUEUE_SIZE - 1;
+ rxq->free_count = 0;
+
+ return rxq;
+}
+
+static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
+{
+ rate &= ~IEEE80211_BASIC_RATE_MASK;
+ if (ieee_mode == IEEE_A) {
+ switch (rate) {
+ case IEEE80211_OFDM_RATE_6MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_9MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_12MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_18MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_24MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_36MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_48MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ?
+ 1 : 0;
+ case IEEE80211_OFDM_RATE_54MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ?
+ 1 : 0;
+ default:
+ return 0;
+ }
+ }
+
+ /* B and G mixed */
+ switch (rate) {
+ case IEEE80211_CCK_RATE_1MB:
+ return priv->rates_mask & IEEE80211_CCK_RATE_1MB_MASK ? 1 : 0;
+ case IEEE80211_CCK_RATE_2MB:
+ return priv->rates_mask & IEEE80211_CCK_RATE_2MB_MASK ? 1 : 0;
+ case IEEE80211_CCK_RATE_5MB:
+ return priv->rates_mask & IEEE80211_CCK_RATE_5MB_MASK ? 1 : 0;
+ case IEEE80211_CCK_RATE_11MB:
+ return priv->rates_mask & IEEE80211_CCK_RATE_11MB_MASK ? 1 : 0;
+ }
+
+ /* If we are limited to B modulations, bail at this point */
+ if (ieee_mode == IEEE_B)
+ return 0;
+
+ /* G */
+ switch (rate) {
+ case IEEE80211_OFDM_RATE_6MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_9MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_12MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_18MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_24MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_36MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_48MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
+ case IEEE80211_OFDM_RATE_54MB:
+ return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
+ }
+
+ return 0;
+}
+
+static int ipw_compatible_rates(struct ipw_priv *priv,
+ const struct ieee80211_network *network,
+ struct ipw_supported_rates *rates)
+{
+ int num_rates, i;
+
+ memset(rates, 0, sizeof(*rates));
+ num_rates = min(network->rates_len, (u8)IPW_MAX_RATES);
+ rates->num_rates = 0;
+ for (i = 0; i < num_rates; i++) {
+ if (!ipw_is_rate_in_mask(priv, network->mode, network->rates[i])) {
+ IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
+ network->rates[i], priv->rates_mask);
+ continue;
+ }
+
+ rates->supported_rates[rates->num_rates++] = network->rates[i];
+ }
+
+ num_rates = min(network->rates_ex_len, (u8)(IPW_MAX_RATES - num_rates));
+ for (i = 0; i < num_rates; i++) {
+ if (!ipw_is_rate_in_mask(priv, network->mode, network->rates_ex[i])) {
+ IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
+ network->rates_ex[i], priv->rates_mask);
+ continue;
+ }
+
+ rates->supported_rates[rates->num_rates++] = network->rates_ex[i];
+ }
+
+ return rates->num_rates;
+}
+
+static inline void ipw_copy_rates(struct ipw_supported_rates *dest,
+ const struct ipw_supported_rates *src)
+{
+ u8 i;
+ for (i = 0; i < src->num_rates; i++)
+ dest->supported_rates[i] = src->supported_rates[i];
+ dest->num_rates = src->num_rates;
+}
+
+/* TODO: Look at sniffed packets in the air to determine if the basic rate
+ * mask should ever be used -- right now all callers to add the scan rates are
+ * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
+static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
+ u8 modulation, u32 rate_mask)
+{
+ u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
+ IEEE80211_BASIC_RATE_MASK : 0;
+
+ if (rate_mask & IEEE80211_CCK_RATE_1MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
+
+ if (rate_mask & IEEE80211_CCK_RATE_2MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
+
+ if (rate_mask & IEEE80211_CCK_RATE_5MB_MASK)
+ rates->supported_rates[rates->num_rates++] = basic_mask |
+ IEEE80211_CCK_RATE_5MB;
+
+ if (rate_mask & IEEE80211_CCK_RATE_11MB_MASK)
+ rates->supported_rates[rates->num_rates++] = basic_mask |
+ IEEE80211_CCK_RATE_11MB;
+}
+
+static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
+ u8 modulation, u32 rate_mask)
+{
+ u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
+ IEEE80211_BASIC_RATE_MASK : 0;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_6MB_MASK)
+ rates->supported_rates[rates->num_rates++] = basic_mask |
+ IEEE80211_OFDM_RATE_6MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_9MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_OFDM_RATE_9MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_12MB_MASK)
+ rates->supported_rates[rates->num_rates++] = basic_mask |
+ IEEE80211_OFDM_RATE_12MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_18MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_OFDM_RATE_18MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_24MB_MASK)
+ rates->supported_rates[rates->num_rates++] = basic_mask |
+ IEEE80211_OFDM_RATE_24MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_36MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_OFDM_RATE_36MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_48MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_OFDM_RATE_48MB;
+
+ if (rate_mask & IEEE80211_OFDM_RATE_54MB_MASK)
+ rates->supported_rates[rates->num_rates++] =
+ IEEE80211_OFDM_RATE_54MB;
+}
+
+struct ipw_network_match {
+ struct ieee80211_network *network;
+ struct ipw_supported_rates rates;
+};
+
+static int ipw_best_network(
+ struct ipw_priv *priv,
+ struct ipw_network_match *match,
+ struct ieee80211_network *network,
+ int roaming)
+{
+ struct ipw_supported_rates rates;
+
+ /* Verify that this network's capability is compatible with the
+ * current mode (AdHoc or Infrastructure) */
+ if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
+ !(network->capability & WLAN_CAPABILITY_BSS)) ||
+ (priv->ieee->iw_mode == IW_MODE_ADHOC &&
+ !(network->capability & WLAN_CAPABILITY_IBSS))) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded due to "
+ "capability mismatch.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid));
+ return 0;
+ }
+
+ /* If we do not have an ESSID for this AP, we can not associate with
+ * it */
+ if (network->flags & NETWORK_EMPTY_ESSID) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of hidden ESSID.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid));
+ return 0;
+ }
+
+ if (unlikely(roaming)) {
+ /* If we are roaming, then ensure check if this is a valid
+ * network to try and roam to */
+ if ((network->ssid_len != match->network->ssid_len) ||
+ memcmp(network->ssid, match->network->ssid,
+ network->ssid_len)) {
+ IPW_DEBUG_ASSOC("Netowrk '%s (" MAC_FMT ")' excluded "
+ "because of non-network ESSID.\n",
+ escape_essid(network->ssid,
+ network->ssid_len),
+ MAC_ARG(network->bssid));
+ return 0;
+ }
+ } else {
+ /* If an ESSID has been configured then compare the broadcast
+ * ESSID to ours */
+ if ((priv->config & CFG_STATIC_ESSID) &&
+ ((network->ssid_len != priv->essid_len) ||
+ memcmp(network->ssid, priv->essid,
+ min(network->ssid_len, priv->essid_len)))) {
+ char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
+ strncpy(escaped, escape_essid(
+ network->ssid, network->ssid_len),
+ sizeof(escaped));
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of ESSID mismatch: '%s'.\n",
+ escaped, MAC_ARG(network->bssid),
+ escape_essid(priv->essid, priv->essid_len));
+ return 0;
+ }
+ }
+
+ /* If the old network rate is better than this one, don't bother
+ * testing everything else. */
+ if (match->network && match->network->stats.rssi >
+ network->stats.rssi) {
+ char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
+ strncpy(escaped,
+ escape_essid(network->ssid, network->ssid_len),
+ sizeof(escaped));
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded because "
+ "'%s (" MAC_FMT ")' has a stronger signal.\n",
+ escaped, MAC_ARG(network->bssid),
+ escape_essid(match->network->ssid,
+ match->network->ssid_len),
+ MAC_ARG(match->network->bssid));
+ return 0;
+ }
+
+ /* If this network has already had an association attempt within the
+ * last 3 seconds, do not try and associate again... */
+ if (network->last_associate &&
+ time_after(network->last_associate + (HZ * 5UL), jiffies)) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of storming (%lu since last "
+ "assoc attempt).\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid),
+ (jiffies - network->last_associate) / HZ);
+ return 0;
+ }
+
+ /* Now go through and see if the requested network is valid... */
+ if (priv->ieee->scan_age != 0 &&
+ jiffies - network->last_scanned > priv->ieee->scan_age) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of age: %lums.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid),
+ (jiffies - network->last_scanned) / (HZ / 100));
+ return 0;
+ }
+
+ if ((priv->config & CFG_STATIC_CHANNEL) &&
+ (network->channel != priv->channel)) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of channel mismatch: %d != %d.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid),
+ network->channel, priv->channel);
+ return 0;
+ }
+
+ /* Verify privacy compatability */
+ if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
+ ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of privacy mismatch: %s != %s.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid),
+ priv->capability & CAP_PRIVACY_ON ? "on" :
+ "off",
+ network->capability &
+ WLAN_CAPABILITY_PRIVACY ?"on" : "off");
+ return 0;
+ }
+
+ if ((priv->config & CFG_STATIC_BSSID) &&
+ memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of BSSID mismatch: " MAC_FMT ".\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid),
+ MAC_ARG(priv->bssid));
+ return 0;
+ }
+
+ /* Filter out any incompatible freq / mode combinations */
+ if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of invalid frequency/mode "
+ "combination.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid));
+ return 0;
+ }
+
+ ipw_compatible_rates(priv, network, &rates);
+ if (rates.num_rates == 0) {
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
+ "because of no compatible rates.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid));
+ return 0;
+ }
+
+ /* TODO: Perform any further minimal comparititive tests. We do not
+ * want to put too much policy logic here; intelligent scan selection
+ * should occur within a generic IEEE 802.11 user space tool. */
+
+ /* Set up 'new' AP to this network */
+ ipw_copy_rates(&match->rates, &rates);
+ match->network = network;
+
+ IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' is a viable match.\n",
+ escape_essid(network->ssid, network->ssid_len),
+ MAC_ARG(network->bssid));
+
+ return 1;
+}
+
+
+static void ipw_adhoc_create(struct ipw_priv *priv,
+ struct ieee80211_network *network)
+{
+ /*
+ * For the purposes of scanning, we can set our wireless mode
+ * to trigger scans across combinations of bands, but when it
+ * comes to creating a new ad-hoc network, we have tell the FW
+ * exactly which band to use.
+ *
+ * We also have the possibility of an invalid channel for the
+ * chossen band. Attempting to create a new ad-hoc network
+ * with an invalid channel for wireless mode will trigger a
+ * FW fatal error.
+ */
+ network->mode = is_valid_channel(priv->ieee->mode, priv->channel);
+ if (network->mode) {
+ network->channel = priv->channel;
+ } else {
+ IPW_WARNING("Overriding invalid channel\n");
+ if (priv->ieee->mode & IEEE_A) {
+ network->mode = IEEE_A;
+ priv->channel = band_a_active_channel[0];
+ } else if (priv->ieee->mode & IEEE_G) {
+ network->mode = IEEE_G;
+ priv->channel = band_b_active_channel[0];
+ } else {
+ network->mode = IEEE_B;
+ priv->channel = band_b_active_channel[0];
+ }
+ }
+
+ network->channel = priv->channel;
+ priv->config |= CFG_ADHOC_PERSIST;
+ ipw_create_bssid(priv, network->bssid);
+ network->ssid_len = priv->essid_len;
+ memcpy(network->ssid, priv->essid, priv->essid_len);
+ memset(&network->stats, 0, sizeof(network->stats));
+ network->capability = WLAN_CAPABILITY_IBSS;
+ if (priv->capability & CAP_PRIVACY_ON)
+ network->capability |= WLAN_CAPABILITY_PRIVACY;
+ network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
+ memcpy(network->rates, priv->rates.supported_rates,
+ network->rates_len);
+ network->rates_ex_len = priv->rates.num_rates - network->rates_len;
+ memcpy(network->rates_ex,
+ &priv->rates.supported_rates[network->rates_len],
+ network->rates_ex_len);
+ network->last_scanned = 0;
+ network->flags = 0;
+ network->last_associate = 0;
+ network->time_stamp[0] = 0;
+ network->time_stamp[1] = 0;
+ network->beacon_interval = 100; /* Default */
+ network->listen_interval = 10; /* Default */
+ network->atim_window = 0; /* Default */
+#ifdef CONFIG_IEEE80211_WPA
+ network->wpa_ie_len = 0;
+ network->rsn_ie_len = 0;
+#endif /* CONFIG_IEEE80211_WPA */
+}
+
+static void ipw_send_wep_keys(struct ipw_priv *priv)
+{
+ struct ipw_wep_key *key;
+ int i;
+ struct host_cmd cmd = {
+ .cmd = IPW_CMD_WEP_KEY,
+ .len = sizeof(*key)
+ };
+
+ key = (struct ipw_wep_key *)&cmd.param;
+ key->cmd_id = DINO_CMD_WEP_KEY;
+ key->seq_num = 0;
+
+ for (i = 0; i < 4; i++) {
+ key->key_index = i;
+ if (!(priv->sec.flags & (1 << i))) {
+ key->key_size = 0;
+ } else {
+ key->key_size = priv->sec.key_sizes[i];
+ memcpy(key->key, priv->sec.keys[i], key->key_size);
+ }
+
+ if (ipw_send_cmd(priv, &cmd)) {
+ IPW_ERROR("failed to send WEP_KEY command\n");
+ return;
+ }
+ }
+}
+
+static void ipw_adhoc_check(void *data)
+{
+ struct ipw_priv *priv = data;
+
+ if (priv->missed_adhoc_beacons++ > priv->missed_beacon_threshold &&
+ !(priv->config & CFG_ADHOC_PERSIST)) {
+ IPW_DEBUG_SCAN("Disassociating due to missed beacons\n");
+ ipw_remove_current_network(priv);
+ ipw_disassociate(priv);
+ return;
+ }
+
+ queue_delayed_work(priv->workqueue, &priv->adhoc_check,
+ priv->assoc_request.beacon_interval);
+}
+
+#ifdef CONFIG_IPW_DEBUG
+static void ipw_debug_config(struct ipw_priv *priv)
+{
+ IPW_DEBUG_INFO("Scan completed, no valid APs matched "
+ "[CFG 0x%08X]\n", priv->config);
+ if (priv->config & CFG_STATIC_CHANNEL)
+ IPW_DEBUG_INFO("Channel locked to %d\n",
+ priv->channel);
+ else
+ IPW_DEBUG_INFO("Channel unlocked.\n");
+ if (priv->config & CFG_STATIC_ESSID)
+ IPW_DEBUG_INFO("ESSID locked to '%s'\n",
+ escape_essid(priv->essid,
+ priv->essid_len));
+ else
+ IPW_DEBUG_INFO("ESSID unlocked.\n");
+ if (priv->config & CFG_STATIC_BSSID)
+ IPW_DEBUG_INFO("BSSID locked to %d\n", priv->channel);
+ else
+ IPW_DEBUG_INFO("BSSID unlocked.\n");
+ if (priv->capability & CAP_PRIVACY_ON)
+ IPW_DEBUG_INFO("PRIVACY on\n");
+ else
+ IPW_DEBUG_INFO("PRIVACY off\n");
+ IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
+}
+#else
+#define ipw_debug_config(x) do {} while (0);
+#endif
+
+static inline void ipw_set_fixed_rate(struct ipw_priv *priv,
+ struct ieee80211_network *network)
+{
+ /* TODO: Verify that this works... */
+ struct ipw_fixed_rate fr = {
+ .tx_rates = priv->rates_mask
+ };
+ u32 reg;
+ u16 mask = 0;
+
+ /* Identify 'current FW band' and match it with the fixed
+ * Tx rates */
+
+ switch (priv->ieee->freq_band) {
+ case IEEE80211_52GHZ_BAND: /* A only */
+ /* IEEE_A */
+ if (priv->rates_mask & ~IEEE80211_OFDM_RATES_MASK) {
+ /* Invalid fixed rate mask */
+ fr.tx_rates = 0;
+ break;
+ }
+
+ fr.tx_rates >>= IEEE80211_OFDM_SHIFT_MASK_A;
+ break;
+
+ default: /* 2.4Ghz or Mixed */
+ /* IEEE_B */
+ if (network->mode == IEEE_B) {
+ if (fr.tx_rates & ~IEEE80211_CCK_RATES_MASK) {
+ /* Invalid fixed rate mask */
+ fr.tx_rates = 0;
+ }
+ break;
+ }
+
+ /* IEEE_G */
+ if (fr.tx_rates & ~(IEEE80211_CCK_RATES_MASK |
+ IEEE80211_OFDM_RATES_MASK)) {
+ /* Invalid fixed rate mask */
+ fr.tx_rates = 0;
+ break;
+ }
+
+ if (IEEE80211_OFDM_RATE_6MB_MASK & fr.tx_rates) {
+ mask |= (IEEE80211_OFDM_RATE_6MB_MASK >> 1);
+ fr.tx_rates &= ~IEEE80211_OFDM_RATE_6MB_MASK;
+ }
+
+ if (IEEE80211_OFDM_RATE_9MB_MASK & fr.tx_rates) {
+ mask |= (IEEE80211_OFDM_RATE_9MB_MASK >> 1);
+ fr.tx_rates &= ~IEEE80211_OFDM_RATE_9MB_MASK;
+ }
+
+ if (IEEE80211_OFDM_RATE_12MB_MASK & fr.tx_rates) {
+ mask |= (IEEE80211_OFDM_RATE_12MB_MASK >> 1);
+ fr.tx_rates &= ~IEEE80211_OFDM_RATE_12MB_MASK;
+ }
+
+ fr.tx_rates |= mask;
+ break;
+ }
+
+ reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
+ ipw_write_reg32(priv, reg, *(u32*)&fr);
+}
+
+static int ipw_associate_network(struct ipw_priv *priv,
+ struct ieee80211_network *network,
+ struct ipw_supported_rates *rates,
+ int roaming)
+{
+ int err;
+
+ if (priv->config & CFG_FIXED_RATE)
+ ipw_set_fixed_rate(priv, network);
+
+ if (!(priv->config & CFG_STATIC_ESSID)) {
+ priv->essid_len = min(network->ssid_len,
+ (u8)IW_ESSID_MAX_SIZE);
+ memcpy(priv->essid, network->ssid, priv->essid_len);
+ }
+
+ network->last_associate = jiffies;
+
+ memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
+ priv->assoc_request.channel = network->channel;
+ if ((priv->capability & CAP_PRIVACY_ON) &&
+ (priv->capability & CAP_SHARED_KEY)) {
+ priv->assoc_request.auth_type = AUTH_SHARED_KEY;
+ priv->assoc_request.auth_key = priv->sec.active_key;
+ } else {
+ priv->assoc_request.auth_type = AUTH_OPEN;
+ priv->assoc_request.auth_key = 0;
+ }
+
+ if (priv->capability & CAP_PRIVACY_ON)
+ ipw_send_wep_keys(priv);
+
+ /*
+ * It is valid for our ieee device to support multiple modes, but
+ * when it comes to associating to a given network we have to choose
+ * just one mode.
+ */
+ if (network->mode & priv->ieee->mode & IEEE_A)
+ priv->assoc_request.ieee_mode = IPW_A_MODE;
+ else if (network->mode & priv->ieee->mode & IEEE_G)
+ priv->assoc_request.ieee_mode = IPW_G_MODE;
+ else if (network->mode & priv->ieee->mode & IEEE_B)
+ priv->assoc_request.ieee_mode = IPW_B_MODE;
+
+ IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, "
+ "802.11%c [%d], enc=%s%s%s%c%c\n",
+ roaming ? "Rea" : "A",
+ escape_essid(priv->essid, priv->essid_len),
+ network->channel,
+ ipw_modes[priv->assoc_request.ieee_mode],
+ rates->num_rates,
+ priv->capability & CAP_PRIVACY_ON ? "on " : "off",
+ priv->capability & CAP_PRIVACY_ON ?
+ (priv->capability & CAP_SHARED_KEY ? "(shared)" :
+ "(open)") : "",
+ priv->capability & CAP_PRIVACY_ON ? " key=" : "",
+ priv->capability & CAP_PRIVACY_ON ?
+ '1' + priv->sec.active_key : '.',
+ priv->capability & CAP_PRIVACY_ON ?
+ '.' : ' ');
+
+ priv->assoc_request.beacon_interval = network->beacon_interval;
+ if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
+ (network->time_stamp[0] == 0) &&
+ (network->time_stamp[1] == 0)) {
+ priv->assoc_request.assoc_type = HC_IBSS_START;
+ priv->assoc_request.assoc_tsf_msw = 0;
+ priv->assoc_request.assoc_tsf_lsw = 0;
+ } else {
+ if (unlikely(roaming))
+ priv->assoc_request.assoc_type = HC_REASSOCIATE;
+ else
+ priv->assoc_request.assoc_type = HC_ASSOCIATE;
+ priv->assoc_request.assoc_tsf_msw = network->time_stamp[1];
+ priv->assoc_request.assoc_tsf_lsw = network->time_stamp[0];
+ }
+
+ memcpy(&priv->assoc_request.bssid, network->bssid, ETH_ALEN);
+
+ if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
+ memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN);
+ priv->assoc_request.atim_window = network->atim_window;
+ } else {
+ memcpy(&priv->assoc_request.dest, network->bssid,
+ ETH_ALEN);
+ priv->assoc_request.atim_window = 0;
+ }
+
+ priv->assoc_request.capability = network->capability;
+ priv->assoc_request.listen_interval = network->listen_interval;
+
+ err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
+ if (err) {
+ IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
+ return err;
+ }
+
+ rates->ieee_mode = priv->assoc_request.ieee_mode;
+ rates->purpose = IPW_RATE_CONNECT;
+ ipw_send_supported_rates(priv, rates);
+
+ if (priv->assoc_request.ieee_mode == IPW_G_MODE)
+ priv->sys_config.dot11g_auto_detection = 1;
+ else
+ priv->sys_config.dot11g_auto_detection = 0;
+ err = ipw_send_system_config(priv, &priv->sys_config);
+ if (err) {
+ IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
+ return err;
+ }
+
+ IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
+ err = ipw_set_sensitivity(priv, network->stats.rssi);
+ if (err) {
+ IPW_DEBUG_HC("Attempt to send associate command failed.\n");
+ return err;
+ }
+
+ /*
+ * If preemption is enabled, it is possible for the association
+ * to complete before we return from ipw_send_associate. Therefore
+ * we have to be sure and update our priviate data first.
+ */
+ priv->channel = network->channel;
+ memcpy(priv->bssid, network->bssid, ETH_ALEN);
+ priv->status |= STATUS_ASSOCIATING;
+ priv->status &= ~STATUS_SECURITY_UPDATED;
+
+ priv->assoc_network = network;
+
+ err = ipw_send_associate(priv, &priv->assoc_request);
+ if (err) {
+ IPW_DEBUG_HC("Attempt to send associate command failed.\n");
+ return err;
+ }
+
+ IPW_DEBUG(IPW_DL_STATE, "associating: '%s' " MAC_FMT " \n",
+ escape_essid(priv->essid, priv->essid_len),
+ MAC_ARG(priv->bssid));
+
+ return 0;
+}
+
+static void ipw_roam(void *data)
+{
+ struct ipw_priv *priv = data;
+ struct ieee80211_network *network = NULL;
+ struct ipw_network_match match = {
+ .network = priv->assoc_network
+ };
+
+ /* The roaming process is as follows:
+ *
+ * 1. Missed beacon threshold triggers the roaming process by
+ * setting the status ROAM bit and requesting a scan.
+ * 2. When the scan completes, it schedules the ROAM work
+ * 3. The ROAM work looks at all of the known networks for one that
+ * is a better network than the currently associated. If none
+ * found, the ROAM process is over (ROAM bit cleared)
+ * 4. If a better network is found, a disassociation request is
+ * sent.
+ * 5. When the disassociation completes, the roam work is again
+ * scheduled. The second time through, the driver is no longer
+ * associated, and the newly selected network is sent an
+ * association request.
+ * 6. At this point ,the roaming process is complete and the ROAM
+ * status bit is cleared.
+ */
+
+ /* If we are no longer associated, and the roaming bit is no longer
+ * set, then we are not actively roaming, so just return */
+ if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
+ return;
+
+ if (priv->status & STATUS_ASSOCIATED) {
+ /* First pass through ROAM process -- look for a better
+ * network */
+ u8 rssi = priv->assoc_network->stats.rssi;
+ priv->assoc_network->stats.rssi = -128;
+ list_for_each_entry(network, &priv->ieee->network_list, list) {
+ if (network != priv->assoc_network)
+ ipw_best_network(priv, &match, network, 1);
+ }
+ priv->assoc_network->stats.rssi = rssi;
+
+ if (match.network == priv->assoc_network) {
+ IPW_DEBUG_ASSOC("No better APs in this network to "
+ "roam to.\n");
+ priv->status &= ~STATUS_ROAMING;
+ ipw_debug_config(priv);
+ return;
+ }
+
+ ipw_send_disassociate(priv, 1);
+ priv->assoc_network = match.network;
+
+ return;
+ }
+
+ /* Second pass through ROAM process -- request association */
+ ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
+ ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
+ priv->status &= ~STATUS_ROAMING;
+}
+
+static void ipw_associate(void *data)
+{
+ struct ipw_priv *priv = data;
+
+ struct ieee80211_network *network = NULL;
+ struct ipw_network_match match = {
+ .network = NULL
+ };
+ struct ipw_supported_rates *rates;
+ struct list_head *element;
+
+ if (!(priv->config & CFG_ASSOCIATE) &&
+ !(priv->config & (CFG_STATIC_ESSID |
+ CFG_STATIC_CHANNEL |
+ CFG_STATIC_BSSID))) {
+ IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
+ return;
+ }
+
+ list_for_each_entry(network, &priv->ieee->network_list, list)
+ ipw_best_network(priv, &match, network, 0);
+
+ network = match.network;
+ rates = &match.rates;
+
+ if (network == NULL &&
+ priv->ieee->iw_mode == IW_MODE_ADHOC &&
+ priv->config & CFG_ADHOC_CREATE &&
+ priv->config & CFG_STATIC_ESSID &&
+ !list_empty(&priv->ieee->network_free_list)) {
+ element = priv->ieee->network_free_list.next;
+ network = list_entry(element, struct ieee80211_network,
+ list);
+ ipw_adhoc_create(priv, network);
+ rates = &priv->rates;
+ list_del(element);
+ list_add_tail(&network->list, &priv->ieee->network_list);
+ }
+
+ /* If we reached the end of the list, then we don't have any valid
+ * matching APs */
+ if (!network) {
+ ipw_debug_config(priv);
+
+ queue_delayed_work(priv->workqueue, &priv->request_scan,
+ SCAN_INTERVAL);
+
+ return;
+ }
+
+ ipw_associate_network(priv, network, rates, 0);
+}
+
+static inline void ipw_handle_data_packet(struct ipw_priv *priv,
+ struct ipw_rx_mem_buffer *rxb,
+ struct ieee80211_rx_stats *stats)
+{
+ struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
+
+ /* We received data from the HW, so stop the watchdog */
+ priv->net_dev->trans_start = jiffies;
+
+ /* We only process data packets if the
+ * interface is open */
+ if (unlikely((pkt->u.frame.length + IPW_RX_FRAME_SIZE) >
+ skb_tailroom(rxb->skb))) {
+ priv->ieee->stats.rx_errors++;
+ priv->wstats.discard.misc++;
+ IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
+ return;
+ } else if (unlikely(!netif_running(priv->net_dev))) {
+ priv->ieee->stats.rx_dropped++;
+ priv->wstats.discard.misc++;
+ IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
+ return;
+ }
+
+ /* Advance skb->data to the start of the actual payload */
+ skb_reserve(rxb->skb, (u32)&pkt->u.frame.data[0] - (u32)pkt);
+
+ /* Set the size of the skb to the size of the frame */
+ skb_put(rxb->skb, pkt->u.frame.length);
+
+ IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
+
+ if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
+ priv->ieee->stats.rx_errors++;
+ else /* ieee80211_rx succeeded, so it now owns the SKB */
+ rxb->skb = NULL;
+}
+
+
+/*
+ * Main entry function for recieving a packet with 80211 headers. This
+ * should be called when ever the FW has notified us that there is a new
+ * skb in the recieve queue.
+ */
+static void ipw_rx(struct ipw_priv *priv)
+{
+ struct ipw_rx_mem_buffer *rxb;
+ struct ipw_rx_packet *pkt;
+ struct ieee80211_hdr *header;
+ u32 r, w, i;
+ u8 network_packet;
+
+ r = ipw_read32(priv, CX2_RX_READ_INDEX);
+ w = ipw_read32(priv, CX2_RX_WRITE_INDEX);
+ i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE;
+
+ while (i != r) {
+ rxb = priv->rxq->queue[i];
+#ifdef CONFIG_IPW_DEBUG
+ if (unlikely(rxb == NULL)) {
+ printk(KERN_CRIT "Queue not allocated!\n");
+ break;
+ }
+#endif
+ priv->rxq->queue[i] = NULL;
+
+ pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
+ CX2_RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ pkt = (struct ipw_rx_packet *)rxb->skb->data;
+ IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
+ pkt->header.message_type,
+ pkt->header.rx_seq_num,
+ pkt->header.control_bits);
+
+ switch (pkt->header.message_type) {
+ case RX_FRAME_TYPE: /* 802.11 frame */ {
+ struct ieee80211_rx_stats stats = {
+ .rssi = pkt->u.frame.rssi_dbm -
+ IPW_RSSI_TO_DBM,
+ .signal = pkt->u.frame.signal,
+ .rate = pkt->u.frame.rate,
+ .mac_time = jiffies,
+ .received_channel =
+ pkt->u.frame.received_channel,
+ .freq = (pkt->u.frame.control & (1<<0)) ?
+ IEEE80211_24GHZ_BAND : IEEE80211_52GHZ_BAND,
+ .len = pkt->u.frame.length,
+ };
+
+ if (stats.rssi != 0)
+ stats.mask |= IEEE80211_STATMASK_RSSI;
+ if (stats.signal != 0)
+ stats.mask |= IEEE80211_STATMASK_SIGNAL;
+ if (stats.rate != 0)
+ stats.mask |= IEEE80211_STATMASK_RATE;
+
+ priv->rx_packets++;
+
+#ifdef CONFIG_IPW_PROMISC
+ if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
+ ipw_handle_data_packet(priv, rxb, &stats);
+ break;
+ }
+#endif
+
+ header = (struct ieee80211_hdr *)(rxb->skb->data +
+ IPW_RX_FRAME_SIZE);
+ /* TODO: Check Ad-Hoc dest/source and make sure
+ * that we are actually parsing these packets
+ * correctly -- we should probably use the
+ * frame control of the packet and disregard
+ * the current iw_mode */
+ switch (priv->ieee->iw_mode) {
+ case IW_MODE_ADHOC:
+ network_packet =
+ !memcmp(header->addr1,
+ priv->net_dev->dev_addr,
+ ETH_ALEN) ||
+ !memcmp(header->addr3,
+ priv->bssid, ETH_ALEN) ||
+ is_broadcast_ether_addr(header->addr1) ||
+ is_multicast_ether_addr(header->addr1);
+ break;
+
+ case IW_MODE_INFRA:
+ default:
+ network_packet =
+ !memcmp(header->addr3,
+ priv->bssid, ETH_ALEN) ||
+ !memcmp(header->addr1,
+ priv->net_dev->dev_addr,
+ ETH_ALEN) ||
+ is_broadcast_ether_addr(header->addr1) ||
+ is_multicast_ether_addr(header->addr1);
+ break;
+ }
+
+ if (network_packet && priv->assoc_network) {
+ priv->assoc_network->stats.rssi = stats.rssi;
+ average_add(&priv->average_rssi,
+ stats.rssi);
+ priv->last_rx_rssi = stats.rssi;
+ }
+
+ IPW_DEBUG_RX("Frame: len=%u\n", pkt->u.frame.length);
+
+ if (pkt->u.frame.length < frame_hdr_len(header)) {
+ IPW_DEBUG_DROP("Received packet is too small. "
+ "Dropping.\n");
+ priv->ieee->stats.rx_errors++;
+ priv->wstats.discard.misc++;
+ break;
+ }
+
+ switch (WLAN_FC_GET_TYPE(header->frame_ctl)) {
+ case IEEE80211_FTYPE_MGMT:
+ ieee80211_rx_mgt(priv->ieee, header, &stats);
+ if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
+ ((WLAN_FC_GET_STYPE(header->frame_ctl) ==
+ IEEE80211_STYPE_PROBE_RESP) ||
+ (WLAN_FC_GET_STYPE(header->frame_ctl) ==
+ IEEE80211_STYPE_BEACON)) &&
+ !memcmp(header->addr3, priv->bssid, ETH_ALEN))
+ ipw_add_station(priv, header->addr2);
+ break;
+
+ case IEEE80211_FTYPE_CTL:
+ break;
+
+ case IEEE80211_FTYPE_DATA:
+ if (network_packet)
+ ipw_handle_data_packet(priv, rxb, &stats);
+ else
+ IPW_DEBUG_DROP("Dropping: " MAC_FMT
+ ", " MAC_FMT ", " MAC_FMT "\n",
+ MAC_ARG(header->addr1), MAC_ARG(header->addr2),
+ MAC_ARG(header->addr3));
+ break;
+ }
+ break;
+ }
+
+ case RX_HOST_NOTIFICATION_TYPE: {
+ IPW_DEBUG_RX("Notification: subtype=%02X flags=%02X size=%d\n",
+ pkt->u.notification.subtype,
+ pkt->u.notification.flags,
+ pkt->u.notification.size);
+ ipw_rx_notification(priv, &pkt->u.notification);
+ break;
+ }
+
+ default:
+ IPW_DEBUG_RX("Bad Rx packet of type %d\n",
+ pkt->header.message_type);
+ break;
+ }
+
+ /* For now we just don't re-use anything. We can tweak this
+ * later to try and re-use notification packets and SKBs that
+ * fail to Rx correctly */
+ if (rxb->skb != NULL) {
+ dev_kfree_skb_any(rxb->skb);
+ rxb->skb = NULL;
+ }
+
+ pci_unmap_single(priv->pci_dev, rxb->dma_addr,
+ CX2_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ list_add_tail(&rxb->list, &priv->rxq->rx_used);
+
+ i = (i + 1) % RX_QUEUE_SIZE;
+ }
+
+ /* Backtrack one entry */
+ priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1;
+
+ ipw_rx_queue_restock(priv);
+}
+
+static void ipw_abort_scan(struct ipw_priv *priv)
+{
+ int err;
+
+ if (priv->status & STATUS_SCAN_ABORTING) {
+ IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
+ return;
+ }
+ priv->status |= STATUS_SCAN_ABORTING;
+
+ err = ipw_send_scan_abort(priv);
+ if (err)
+ IPW_DEBUG_HC("Request to abort scan failed.\n");
+}
+
+static int ipw_request_scan(struct ipw_priv *priv)
+{
+ struct ipw_scan_request_ext scan;
+ int channel_index = 0;
+ int i, err, scan_type;
+
+ if (priv->status & STATUS_EXIT_PENDING) {
+ IPW_DEBUG_SCAN("Aborting scan due to device shutdown\n");
+ priv->status |= STATUS_SCAN_PENDING;
+ return 0;
+ }
+
+ if (priv->status & STATUS_SCANNING) {
+ IPW_DEBUG_HC("Concurrent scan requested. Aborting first.\n");
+ priv->status |= STATUS_SCAN_PENDING;
+ ipw_abort_scan(priv);
+ return 0;
+ }
+
+ if (priv->status & STATUS_SCAN_ABORTING) {
+ IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n");
+ priv->status |= STATUS_SCAN_PENDING;
+ return 0;
+ }
+
+ if (priv->status & STATUS_RF_KILL_MASK) {
+ IPW_DEBUG_HC("Aborting scan due to RF Kill activation\n");
+ priv->status |= STATUS_SCAN_PENDING;
+ return 0;
+ }
+
+ memset(&scan, 0, sizeof(scan));
+
+ scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = 20;
+ scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = 20;
+ scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = 20;
+
+ scan.full_scan_index = ieee80211_get_scans(priv->ieee);
+ /* If we are roaming, then make this a directed scan for the current
+ * network. Otherwise, ensure that every other scan is a fast
+ * channel hop scan */
+ if ((priv->status & STATUS_ROAMING) || (
+ !(priv->status & STATUS_ASSOCIATED) &&
+ (priv->config & CFG_STATIC_ESSID) &&
+ (scan.full_scan_index % 2))) {
+ err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
+ if (err) {
+ IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
+ return err;
+ }
+
+ scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
+ } else {
+ scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
+ }
+
+ if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) {
+ int start = channel_index;
+ for (i = 0; i < MAX_A_CHANNELS; i++) {
+ if (band_a_active_channel[i] == 0)
+ break;
+ if ((priv->status & STATUS_ASSOCIATED) &&
+ band_a_active_channel[i] == priv->channel)
+ continue;
+ channel_index++;
+ scan.channels_list[channel_index] =
+ band_a_active_channel[i];
+ ipw_set_scan_type(&scan, channel_index, scan_type);
+ }
+
+ if (start != channel_index) {
+ scan.channels_list[start] = (u8)(IPW_A_MODE << 6) |
+ (channel_index - start);
+ channel_index++;
+ }
+ }
+
+ if (priv->ieee->freq_band & IEEE80211_24GHZ_BAND) {
+ int start = channel_index;
+ for (i = 0; i < MAX_B_CHANNELS; i++) {
+ if (band_b_active_channel[i] == 0)
+ break;
+ if ((priv->status & STATUS_ASSOCIATED) &&
+ band_b_active_channel[i] == priv->channel)
+ continue;
+ channel_index++;
+ scan.channels_list[channel_index] =
+ band_b_active_channel[i];
+ ipw_set_scan_type(&scan, channel_index, scan_type);
+ }
+
+ if (start != channel_index) {
+ scan.channels_list[start] = (u8)(IPW_B_MODE << 6) |
+ (channel_index - start);
+ }
+ }
+
+ err = ipw_send_scan_request_ext(priv, &scan);
+ if (err) {
+ IPW_DEBUG_HC("Sending scan command failed: %08X\n",
+ err);
+ return -EIO;
+ }
+
+ priv->status |= STATUS_SCANNING;
+ priv->status &= ~STATUS_SCAN_PENDING;
+
+ return 0;
+}
+
+/*
+ * This file defines the Wireless Extension handlers. It does not
+ * define any methods of hardware manipulation and relies on the
+ * functions defined in ipw_main to provide the HW interaction.
+ *
+ * The exception to this is the use of the ipw_get_ordinal()
+ * function used to poll the hardware vs. making unecessary calls.
+ *
+ */
+
+static int ipw_wx_get_name(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ if (!(priv->status & STATUS_ASSOCIATED))
+ strcpy(wrqu->name, "unassociated");
+ else
+ snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11%c",
+ ipw_modes[priv->assoc_request.ieee_mode]);
+ IPW_DEBUG_WX("Name: %s\n", wrqu->name);
+ return 0;
+}
+
+static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
+{
+ if (channel == 0) {
+ IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
+ priv->config &= ~CFG_STATIC_CHANNEL;
+ if (!(priv->status & (STATUS_SCANNING | STATUS_ASSOCIATED |
+ STATUS_ASSOCIATING))) {
+ IPW_DEBUG_ASSOC("Attempting to associate with new "
+ "parameters.\n");
+ ipw_associate(priv);
+ }
+
+ return 0;
+ }
+
+ priv->config |= CFG_STATIC_CHANNEL;
+
+ if (priv->channel == channel) {
+ IPW_DEBUG_INFO(
+ "Request to set channel to current value (%d)\n",
+ channel);
+ return 0;
+ }
+
+ IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
+ priv->channel = channel;
+
+ /* If we are currently associated, or trying to associate
+ * then see if this is a new channel (causing us to disassociate) */
+ if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
+ IPW_DEBUG_ASSOC("Disassociating due to channel change.\n");
+ ipw_disassociate(priv);
+ } else {
+ ipw_associate(priv);
+ }
+
+ return 0;
+}
+
+static int ipw_wx_set_freq(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ struct iw_freq *fwrq = &wrqu->freq;
+
+ /* if setting by freq convert to channel */
+ if (fwrq->e == 1) {
+ if ((fwrq->m >= (int) 2.412e8 &&
+ fwrq->m <= (int) 2.487e8)) {
+ int f = fwrq->m / 100000;
+ int c = 0;
+
+ while ((c < REG_MAX_CHANNEL) &&
+ (f != ipw_frequencies[c]))
+ c++;
+
+ /* hack to fall through */
+ fwrq->e = 0;
+ fwrq->m = c + 1;
+ }
+ }
+
+ if (fwrq->e > 0 || fwrq->m > 1000)
+ return -EOPNOTSUPP;
+
+ IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
+ return ipw_set_channel(priv, (u8)fwrq->m);
+
+ return 0;
+}
+
+
+static int ipw_wx_get_freq(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ wrqu->freq.e = 0;
+
+ /* If we are associated, trying to associate, or have a statically
+ * configured CHANNEL then return that; otherwise return ANY */
+ if (priv->config & CFG_STATIC_CHANNEL ||
+ priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))
+ wrqu->freq.m = priv->channel;
+ else
+ wrqu->freq.m = 0;
+
+ IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
+ return 0;
+}
+
+static int ipw_wx_set_mode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int err = 0;
+
+ IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
+
+ if (wrqu->mode == priv->ieee->iw_mode)
+ return 0;
+
+ switch (wrqu->mode) {
+#ifdef CONFIG_IPW_PROMISC
+ case IW_MODE_MONITOR:
+#endif
+ case IW_MODE_ADHOC:
+ case IW_MODE_INFRA:
+ break;
+ case IW_MODE_AUTO:
+ wrqu->mode = IW_MODE_INFRA;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+#ifdef CONFIG_IPW_PROMISC
+ if (priv->ieee->iw_mode == IW_MODE_MONITOR)
+ priv->net_dev->type = ARPHRD_ETHER;
+
+ if (wrqu->mode == IW_MODE_MONITOR)
+ priv->net_dev->type = ARPHRD_IEEE80211;
+#endif /* CONFIG_IPW_PROMISC */
+
+#ifdef CONFIG_PM
+ /* Free the existing firmware and reset the fw_loaded
+ * flag so ipw_load() will bring in the new firmawre */
+ if (fw_loaded) {
+ fw_loaded = 0;
+ }
+
+ release_firmware(bootfw);
+ release_firmware(ucode);
+ release_firmware(firmware);
+ bootfw = ucode = firmware = NULL;
+#endif
+
+ priv->ieee->iw_mode = wrqu->mode;
+ ipw_adapter_restart(priv);
+
+ return err;
+}
+
+static int ipw_wx_get_mode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ wrqu->mode = priv->ieee->iw_mode;
+ IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
+
+ return 0;
+}
+
+
+#define DEFAULT_RTS_THRESHOLD 2304U
+#define MIN_RTS_THRESHOLD 1U
+#define MAX_RTS_THRESHOLD 2304U
+#define DEFAULT_BEACON_INTERVAL 100U
+#define DEFAULT_SHORT_RETRY_LIMIT 7U
+#define DEFAULT_LONG_RETRY_LIMIT 4U
+
+/* Values are in microsecond */
+static const s32 timeout_duration[] = {
+ 350000,
+ 250000,
+ 75000,
+ 37000,
+ 25000,
+};
+
+static const s32 period_duration[] = {
+ 400000,
+ 700000,
+ 1000000,
+ 1000000,
+ 1000000
+};
+
+static int ipw_wx_get_range(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ struct iw_range *range = (struct iw_range *)extra;
+ u16 val;
+ int i;
+
+ wrqu->data.length = sizeof(*range);
+ memset(range, 0, sizeof(*range));
+
+ /* 54Mbs == ~27 Mb/s real (802.11g) */
+ range->throughput = 27 * 1000 * 1000;
+
+ range->max_qual.qual = 100;
+ /* TODO: Find real max RSSI and stick here */
+ range->max_qual.level = 0;
+ range->max_qual.noise = 0;
+ range->max_qual.updated = 7; /* Updated all three */
+
+ range->avg_qual.qual = 70;
+ /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
+ range->avg_qual.level = 0; /* FIXME to real average level */
+ range->avg_qual.noise = 0;
+ range->avg_qual.updated = 7; /* Updated all three */
+
+ range->num_bitrates = min(priv->rates.num_rates, (u8)IW_MAX_BITRATES);
+
+ for (i = 0; i < range->num_bitrates; i++)
+ range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
+ 500000;
+
+ range->max_rts = DEFAULT_RTS_THRESHOLD;
+ range->min_frag = MIN_FRAG_THRESHOLD;
+ range->max_frag = MAX_FRAG_THRESHOLD;
+
+ range->encoding_size[0] = 5;
+ range->encoding_size[1] = 13;
+ range->num_encoding_sizes = 2;
+ range->max_encoding_tokens = WEP_KEYS;
+
+ /* Set the Wireless Extension versions */
+ range->we_version_compiled = WIRELESS_EXT;
+ range->we_version_source = 16;
+
+ range->num_channels = FREQ_COUNT;
+
+ val = 0;
+ for (i = 0; i < FREQ_COUNT; i++) {
+ range->freq[val].i = i + 1;
+ range->freq[val].m = ipw_frequencies[i] * 100000;
+ range->freq[val].e = 1;
+ val++;
+
+ if (val == IW_MAX_FREQUENCIES)
+ break;
+ }
+ range->num_frequency = val;
+
+ IPW_DEBUG_WX("GET Range\n");
+ return 0;
+}
+
+static int ipw_wx_set_wap(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ static const unsigned char any[] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ };
+ static const unsigned char off[] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+
+ if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
+ return -EINVAL;
+
+ if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
+ !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
+ /* we disable mandatory BSSID association */
+ IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
+ priv->config &= ~CFG_STATIC_BSSID;
+ if (!(priv->status & (STATUS_SCANNING | STATUS_ASSOCIATED |
+ STATUS_ASSOCIATING))) {
+ IPW_DEBUG_ASSOC("Attempting to associate with new "
+ "parameters.\n");
+ ipw_associate(priv);
+ }
+
+ return 0;
+ }
+
+ priv->config |= CFG_STATIC_BSSID;
+ if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) {
+ IPW_DEBUG_WX("BSSID set to current BSSID.\n");
+ return 0;
+ }
+
+ IPW_DEBUG_WX("Setting mandatory BSSID to " MAC_FMT "\n",
+ MAC_ARG(wrqu->ap_addr.sa_data));
+
+ memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
+
+ /* If we are currently associated, or trying to associate
+ * then see if this is a new BSSID (causing us to disassociate) */
+ if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
+ IPW_DEBUG_ASSOC("Disassociating due to BSSID change.\n");
+ ipw_disassociate(priv);
+ } else {
+ ipw_associate(priv);
+ }
+
+ return 0;
+}
+
+static int ipw_wx_get_wap(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ /* If we are associated, trying to associate, or have a statically
+ * configured BSSID then return that; otherwise return ANY */
+ if (priv->config & CFG_STATIC_BSSID ||
+ priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
+ wrqu->ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(wrqu->ap_addr.sa_data, &priv->bssid, ETH_ALEN);
+ } else
+ memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
+
+ IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
+ MAC_ARG(wrqu->ap_addr.sa_data));
+ return 0;
+}
+
+static int ipw_wx_set_essid(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ char *essid = ""; /* ANY */
+ int length = 0;
+
+ if (wrqu->essid.flags && wrqu->essid.length) {
+ length = wrqu->essid.length - 1;
+ essid = extra;
+ }
+ if (length == 0) {
+ IPW_DEBUG_WX("Setting ESSID to ANY\n");
+ priv->config &= ~CFG_STATIC_ESSID;
+ if (!(priv->status & (STATUS_SCANNING | STATUS_ASSOCIATED |
+ STATUS_ASSOCIATING))) {
+ IPW_DEBUG_ASSOC("Attempting to associate with new "
+ "parameters.\n");
+ ipw_associate(priv);
+ }
+
+ return 0;
+ }
+
+ length = min(length, IW_ESSID_MAX_SIZE);
+
+ priv->config |= CFG_STATIC_ESSID;
+
+ if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
+ IPW_DEBUG_WX("ESSID set to current ESSID.\n");
+ return 0;
+ }
+
+ IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
+ length);
+
+ priv->essid_len = length;
+ memcpy(priv->essid, essid, priv->essid_len);
+
+ /* If we are currently associated, or trying to associate
+ * then see if this is a new ESSID (causing us to disassociate) */
+ if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
+ IPW_DEBUG_ASSOC("Disassociating due to ESSID change.\n");
+ ipw_disassociate(priv);
+ } else {
+ ipw_associate(priv);
+ }
+
+ return 0;
+}
+
+static int ipw_wx_get_essid(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ /* If we are associated, trying to associate, or have a statically
+ * configured ESSID then return that; otherwise return ANY */
+ if (priv->config & CFG_STATIC_ESSID ||
+ priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
+ IPW_DEBUG_WX("Getting essid: '%s'\n",
+ escape_essid(priv->essid, priv->essid_len));
+ memcpy(extra, priv->essid, priv->essid_len);
+ wrqu->essid.length = priv->essid_len;
+ wrqu->essid.flags = 1; /* active */
+ } else {
+ IPW_DEBUG_WX("Getting essid: ANY\n");
+ wrqu->essid.length = 0;
+ wrqu->essid.flags = 0; /* active */
+ }
+
+ return 0;
+}
+
+static int ipw_wx_set_nick(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
+ if (wrqu->data.length > IW_ESSID_MAX_SIZE)
+ return -E2BIG;
+
+ wrqu->data.length = min((size_t)wrqu->data.length, sizeof(priv->nick));
+ memset(priv->nick, 0, sizeof(priv->nick));
+ memcpy(priv->nick, extra, wrqu->data.length);
+ IPW_DEBUG_TRACE("<<\n");
+ return 0;
+
+}
+
+
+static int ipw_wx_get_nick(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ IPW_DEBUG_WX("Getting nick\n");
+ wrqu->data.length = strlen(priv->nick) + 1;
+ memcpy(extra, priv->nick, wrqu->data.length);
+ wrqu->data.flags = 1; /* active */
+ return 0;
+}
+
+
+static int ipw_wx_set_rate(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ IPW_DEBUG_WX("0x%p, 0x%p, 0x%p\n", dev, info, wrqu);
+ return -EOPNOTSUPP;
+}
+
+static int ipw_wx_get_rate(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv * priv = ieee80211_priv(dev);
+ wrqu->bitrate.value = priv->last_rate;
+
+ IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
+ return 0;
+}
+
+
+static int ipw_wx_set_rts(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ if (wrqu->rts.disabled)
+ priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
+ else {
+ if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
+ wrqu->rts.value > MAX_RTS_THRESHOLD)
+ return -EINVAL;
+
+ priv->rts_threshold = wrqu->rts.value;
+ }
+
+ ipw_send_rts_threshold(priv, priv->rts_threshold);
+ IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold);
+ return 0;
+}
+
+static int ipw_wx_get_rts(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ wrqu->rts.value = priv->rts_threshold;
+ wrqu->rts.fixed = 0; /* no auto select */
+ wrqu->rts.disabled =
+ (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
+
+ IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value);
+ return 0;
+}
+
+
+static int ipw_wx_set_txpow(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ struct ipw_tx_power tx_power;
+ int i;
+
+ if (ipw_radio_kill_sw(priv, wrqu->power.disabled))
+ return -EINPROGRESS;
+
+ if (wrqu->power.flags != IW_TXPOW_DBM)
+ return -EINVAL;
+
+ if ((wrqu->power.value > 20) ||
+ (wrqu->power.value < -12))
+ return -EINVAL;
+
+ priv->tx_power = wrqu->power.value;
+
+ memset(&tx_power, 0, sizeof(tx_power));
+
+ /* configure device for 'G' band */
+ tx_power.ieee_mode = IPW_G_MODE;
+ tx_power.num_channels = 11;
+ for (i = 0; i < 11; i++) {
+ tx_power.channels_tx_power[i].channel_number = i + 1;
+ tx_power.channels_tx_power[i].tx_power = priv->tx_power;
+ }
+ if (ipw_send_tx_power(priv, &tx_power))
+ goto error;
+
+ /* configure device to also handle 'B' band */
+ tx_power.ieee_mode = IPW_B_MODE;
+ if (ipw_send_tx_power(priv, &tx_power))
+ goto error;
+
+ return 0;
+
+ error:
+ return -EIO;
+}
+
+
+static int ipw_wx_get_txpow(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ wrqu->power.value = priv->tx_power;
+ wrqu->power.fixed = 1;
+ wrqu->power.flags = IW_TXPOW_DBM;
+ wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
+
+ IPW_DEBUG_WX("GET TX Power -> %s %d \n",
+ wrqu->power.disabled ? "ON" : "OFF",
+ wrqu->power.value);
+
+ return 0;
+}
+
+static int ipw_wx_set_frag(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ if (wrqu->frag.disabled)
+ priv->ieee->fts = DEFAULT_FTS;
+ else {
+ if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
+ wrqu->frag.value > MAX_FRAG_THRESHOLD)
+ return -EINVAL;
+
+ priv->ieee->fts = wrqu->frag.value & ~0x1;
+ }
+
+ ipw_send_frag_threshold(priv, wrqu->frag.value);
+ IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value);
+ return 0;
+}
+
+static int ipw_wx_get_frag(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ wrqu->frag.value = priv->ieee->fts;
+ wrqu->frag.fixed = 0; /* no auto select */
+ wrqu->frag.disabled =
+ (wrqu->frag.value == DEFAULT_FTS);
+
+ IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
+
+ return 0;
+}
+
+static int ipw_wx_set_retry(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ IPW_DEBUG_WX("0x%p, 0x%p, 0x%p\n", dev, info, wrqu);
+ return -EOPNOTSUPP;
+}
+
+
+static int ipw_wx_get_retry(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ IPW_DEBUG_WX("0x%p, 0x%p, 0x%p\n", dev, info, wrqu);
+ return -EOPNOTSUPP;
+}
+
+
+static int ipw_wx_set_scan(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ IPW_DEBUG_WX("Start scan\n");
+ if (ipw_request_scan(priv))
+ return -EIO;
+ return 0;
+}
+
+static int ipw_wx_get_scan(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
+}
+
+static int ipw_wx_set_encode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *key)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
+}
+
+static int ipw_wx_get_encode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *key)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
+}
+
+static int ipw_wx_set_power(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int err;
+
+ if (wrqu->power.disabled) {
+ priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
+ err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
+ if (err) {
+ IPW_DEBUG_WX("failed setting power mode.\n");
+ return err;
+ }
+
+ IPW_DEBUG_WX("SET Power Management Mode -> off\n");
+
+ return 0;
+ }
+
+ switch (wrqu->power.flags & IW_POWER_MODE) {
+ case IW_POWER_ON: /* If not specified */
+ case IW_POWER_MODE: /* If set all mask */
+ case IW_POWER_ALL_R: /* If explicitely state all */
+ break;
+ default: /* Otherwise we don't support it */
+ IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
+ wrqu->power.flags);
+ return -EOPNOTSUPP;
+ }
+
+ /* If the user hasn't specified a power management mode yet, default
+ * to BATTERY */
+ if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
+ priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
+ else
+ priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
+ err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
+ if (err) {
+ IPW_DEBUG_WX("failed setting power mode.\n");
+ return err;
+ }
+
+ IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n",
+ priv->power_mode);
+
+ return 0;
+}
+
+static int ipw_wx_get_power(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ if (!(priv->power_mode & IPW_POWER_ENABLED)) {
+ wrqu->power.disabled = 1;
+ } else {
+ wrqu->power.disabled = 0;
+ }
+
+ IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
+
+ return 0;
+}
+
+static int ipw_wx_set_powermode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int mode = *(int *)extra;
+ int err;
+
+ if ((mode < 1) || (mode > IPW_POWER_LIMIT)) {
+ mode = IPW_POWER_AC;
+ priv->power_mode = mode;
+ } else {
+ priv->power_mode = IPW_POWER_ENABLED | mode;
+ }
+
+ if (priv->power_mode != mode) {
+ err = ipw_send_power_mode(priv, mode);
+
+ if (err) {
+ IPW_DEBUG_WX("failed setting power mode.\n");
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+#define MAX_WX_STRING 80
+static int ipw_wx_get_powermode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int level = IPW_POWER_LEVEL(priv->power_mode);
+ char *p = extra;
+
+ p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
+
+ switch (level) {
+ case IPW_POWER_AC:
+ p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
+ break;
+ case IPW_POWER_BATTERY:
+ p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
+ break;
+ default:
+ p += snprintf(p, MAX_WX_STRING - (p - extra),
+ "(Timeout %dms, Period %dms)",
+ timeout_duration[level - 1] / 1000,
+ period_duration[level - 1] / 1000);
+ }
+
+ if (!(priv->power_mode & IPW_POWER_ENABLED))
+ p += snprintf(p, MAX_WX_STRING - (p - extra)," OFF");
+
+ wrqu->data.length = p - extra + 1;
+
+ return 0;
+}
+
+static int ipw_wx_set_wireless_mode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int mode = *(int *)extra;
+ u8 band = 0, modulation = 0;
+
+ if (mode == 0 || mode & ~IEEE_MODE_MASK) {
+ IPW_WARNING("Attempt to set invalid wireless mode: %d\n",
+ mode);
+ return -EINVAL;
+ }
+
+ if (priv->adapter == IPW_2915ABG) {
+ priv->ieee->abg_ture = 1;
+ if (mode & IEEE_A) {
+ band |= IEEE80211_52GHZ_BAND;
+ modulation |= IEEE80211_OFDM_MODULATION;
+ } else
+ priv->ieee->abg_ture = 0;
+ } else {
+ if (mode & IEEE_A) {
+ IPW_WARNING("Attempt to set 2200BG into "
+ "802.11a mode\n");
+ return -EINVAL;
+ }
+
+ priv->ieee->abg_ture = 0;
+ }
+
+ if (mode & IEEE_B) {
+ band |= IEEE80211_24GHZ_BAND;
+ modulation |= IEEE80211_CCK_MODULATION;
+ } else
+ priv->ieee->abg_ture = 0;
+
+ if (mode & IEEE_G) {
+ band |= IEEE80211_24GHZ_BAND;
+ modulation |= IEEE80211_OFDM_MODULATION;
+ } else
+ priv->ieee->abg_ture = 0;
+
+ priv->ieee->mode = mode;
+ priv->ieee->freq_band = band;
+ priv->ieee->modulation = modulation;
+ init_supported_rates(priv, &priv->rates);
+
+ /* If we are currently associated, or trying to associate
+ * then see if this is a new configuration (causing us to
+ * disassociate) */
+ if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
+ /* The resulting association will trigger
+ * the new rates to be sent to the device */
+ IPW_DEBUG_ASSOC("Disassociating due to mode change.\n");
+ ipw_disassociate(priv);
+ } else
+ ipw_send_supported_rates(priv, &priv->rates);
+
+ IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
+ mode & IEEE_A ? 'a' : '.',
+ mode & IEEE_B ? 'b' : '.',
+ mode & IEEE_G ? 'g' : '.');
+ return 0;
+}
+
+static int ipw_wx_get_wireless_mode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ switch (priv->ieee->freq_band) {
+ case IEEE80211_24GHZ_BAND:
+ switch (priv->ieee->modulation) {
+ case IEEE80211_CCK_MODULATION:
+ strncpy(extra, "802.11b (2)", MAX_WX_STRING);
+ break;
+ case IEEE80211_OFDM_MODULATION:
+ strncpy(extra, "802.11g (4)", MAX_WX_STRING);
+ break;
+ default:
+ strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
+ break;
+ }
+ break;
+
+ case IEEE80211_52GHZ_BAND:
+ strncpy(extra, "802.11a (1)", MAX_WX_STRING);
+ break;
+
+ default: /* Mixed Band */
+ switch (priv->ieee->modulation) {
+ case IEEE80211_CCK_MODULATION:
+ strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
+ break;
+ case IEEE80211_OFDM_MODULATION:
+ strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
+ break;
+ default:
+ strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
+ break;
+ }
+ break;
+ }
+
+ IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
+
+ wrqu->data.length = strlen(extra) + 1;
+
+ return 0;
+}
+
+#ifdef CONFIG_IPW_PROMISC
+static int ipw_wx_set_promisc(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int *parms = (int *)extra;
+ int enable = (parms[0] > 0);
+
+ IPW_DEBUG_WX("SET PROMISC: %d %d\n", enable, parms[1]);
+ if (enable) {
+ if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
+ priv->net_dev->type = ARPHRD_IEEE80211;
+ ipw_adapter_restart(priv);
+ }
+
+ ipw_set_channel(priv, parms[1]);
+ } else {
+ if (priv->ieee->iw_mode != IW_MODE_MONITOR)
+ return 0;
+ priv->net_dev->type = ARPHRD_ETHER;
+ ipw_adapter_restart(priv);
+ }
+ return 0;
+}
+
+
+static int ipw_wx_reset(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ IPW_DEBUG_WX("RESET\n");
+ ipw_adapter_restart(priv);
+ return 0;
+}
+#endif // CONFIG_IPW_PROMISC
+
+/* Rebase the WE IOCTLs to zero for the handler array */
+#define IW_IOCTL(x) [(x)-SIOCSIWCOMMIT]
+static iw_handler ipw_wx_handlers[] =
+{
+ IW_IOCTL(SIOCGIWNAME) = ipw_wx_get_name,
+ IW_IOCTL(SIOCSIWFREQ) = ipw_wx_set_freq,
+ IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq,
+ IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode,
+ IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode,
+ IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range,
+ IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap,
+ IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap,
+ IW_IOCTL(SIOCSIWSCAN) = ipw_wx_set_scan,
+ IW_IOCTL(SIOCGIWSCAN) = ipw_wx_get_scan,
+ IW_IOCTL(SIOCSIWESSID) = ipw_wx_set_essid,
+ IW_IOCTL(SIOCGIWESSID) = ipw_wx_get_essid,
+ IW_IOCTL(SIOCSIWNICKN) = ipw_wx_set_nick,
+ IW_IOCTL(SIOCGIWNICKN) = ipw_wx_get_nick,
+ IW_IOCTL(SIOCSIWRATE) = ipw_wx_set_rate,
+ IW_IOCTL(SIOCGIWRATE) = ipw_wx_get_rate,
+ IW_IOCTL(SIOCSIWRTS) = ipw_wx_set_rts,
+ IW_IOCTL(SIOCGIWRTS) = ipw_wx_get_rts,
+ IW_IOCTL(SIOCSIWFRAG) = ipw_wx_set_frag,
+ IW_IOCTL(SIOCGIWFRAG) = ipw_wx_get_frag,
+ IW_IOCTL(SIOCSIWTXPOW) = ipw_wx_set_txpow,
+ IW_IOCTL(SIOCGIWTXPOW) = ipw_wx_get_txpow,
+ IW_IOCTL(SIOCSIWRETRY) = ipw_wx_set_retry,
+ IW_IOCTL(SIOCGIWRETRY) = ipw_wx_get_retry,
+ IW_IOCTL(SIOCSIWENCODE) = ipw_wx_set_encode,
+ IW_IOCTL(SIOCGIWENCODE) = ipw_wx_get_encode,
+ IW_IOCTL(SIOCSIWPOWER) = ipw_wx_set_power,
+ IW_IOCTL(SIOCGIWPOWER) = ipw_wx_get_power,
+};
+
+#define IPW_PRIV_SET_POWER SIOCIWFIRSTPRIV
+#define IPW_PRIV_GET_POWER SIOCIWFIRSTPRIV+1
+#define IPW_PRIV_SET_MODE SIOCIWFIRSTPRIV+2
+#define IPW_PRIV_GET_MODE SIOCIWFIRSTPRIV+3
+#define IPW_PRIV_SET_PROMISC SIOCIWFIRSTPRIV+4
+#define IPW_PRIV_RESET SIOCIWFIRSTPRIV+5
+
+
+static struct iw_priv_args ipw_priv_args[] = {
+ {
+ .cmd = IPW_PRIV_SET_POWER,
+ .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
+ .name = "set_power"
+ },
+ {
+ .cmd = IPW_PRIV_GET_POWER,
+ .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
+ .name = "get_power"
+ },
+ {
+ .cmd = IPW_PRIV_SET_MODE,
+ .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
+ .name = "set_mode"
+ },
+ {
+ .cmd = IPW_PRIV_GET_MODE,
+ .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
+ .name = "get_mode"
+ },
+#ifdef CONFIG_IPW_PROMISC
+ {
+ IPW_PRIV_SET_PROMISC,
+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"
+ },
+ {
+ IPW_PRIV_RESET,
+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"
+ },
+#endif /* CONFIG_IPW_PROMISC */
+};
+
+static iw_handler ipw_priv_handler[] = {
+ ipw_wx_set_powermode,
+ ipw_wx_get_powermode,
+ ipw_wx_set_wireless_mode,
+ ipw_wx_get_wireless_mode,
+#ifdef CONFIG_IPW_PROMISC
+ ipw_wx_set_promisc,
+ ipw_wx_reset,
+#endif
+};
+
+static struct iw_handler_def ipw_wx_handler_def =
+{
+ .standard = ipw_wx_handlers,
+ .num_standard = ARRAY_SIZE(ipw_wx_handlers),
+ .num_private = ARRAY_SIZE(ipw_priv_handler),
+ .num_private_args = ARRAY_SIZE(ipw_priv_args),
+ .private = ipw_priv_handler,
+ .private_args = ipw_priv_args,
+};
+
+
+
+
+/*
+ * Get wireless statistics.
+ * Called by /proc/net/wireless
+ * Also called by SIOCGIWSTATS
+ */
+static struct iw_statistics *ipw_get_wireless_stats(struct net_device * dev)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ struct iw_statistics *wstats;
+
+ wstats = &priv->wstats;
+
+ /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
+ * ipw2100_wx_wireless_stats seems to be called before fw is
+ * initialized. STATUS_ASSOCIATED will only be set if the hw is up
+ * and associated; if not associcated, the values are all meaningless
+ * anyway, so set them all to NULL and INVALID */
+ if (!(priv->status & STATUS_ASSOCIATED)) {
+ wstats->miss.beacon = 0;
+ wstats->discard.retries = 0;
+ wstats->qual.qual = 0;
+ wstats->qual.level = 0;
+ wstats->qual.noise = 0;
+ wstats->qual.updated = 7;
+ wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
+ IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
+ return wstats;
+ }
+
+ wstats->qual.qual = priv->quality;
+ wstats->qual.level = average_value(&priv->average_rssi);
+ wstats->qual.noise = average_value(&priv->average_noise);
+ wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
+ IW_QUAL_NOISE_UPDATED;
+
+ wstats->miss.beacon = average_value(&priv->average_missed_beacons);
+ wstats->discard.retries = priv->last_tx_failures;
+ wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
+
+/* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
+ goto fail_get_ordinal;
+ wstats->discard.retries += tx_retry; */
+
+ return wstats;
+}
+
+
+/* net device stuff */
+
+static inline void init_sys_config(struct ipw_sys_config *sys_config)
+{
+ memset(sys_config, 0, sizeof(struct ipw_sys_config));
+ sys_config->bt_coexistence = 1; /* We may need to look into prvStaBtConfig */
+ sys_config->answer_broadcast_ssid_probe = 0;
+ sys_config->accept_all_data_frames = 0;
+ sys_config->accept_non_directed_frames = 1;
+ sys_config->exclude_unicast_unencrypted = 0;
+ sys_config->disable_unicast_decryption = 1;
+ sys_config->exclude_multicast_unencrypted = 0;
+ sys_config->disable_multicast_decryption = 1;
+ sys_config->antenna_diversity = CFG_SYS_ANTENNA_BOTH;
+ sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */
+ sys_config->dot11g_auto_detection = 0;
+ sys_config->enable_cts_to_self = 0;
+ sys_config->bt_coexist_collision_thr = 0;
+ sys_config->pass_noise_stats_to_host = 1;
+}
+
+static int ipw_net_open(struct net_device *dev)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ IPW_DEBUG_INFO("dev->open\n");
+ /* we should be verifying the device is ready to be opened */
+ if (!(priv->status & STATUS_RF_KILL_MASK) &&
+ (priv->status & STATUS_ASSOCIATED))
+ netif_start_queue(dev);
+ return 0;
+}
+
+static int ipw_net_stop(struct net_device *dev)
+{
+ IPW_DEBUG_INFO("dev->close\n");
+ netif_stop_queue(dev);
+ return 0;
+}
+
+/*
+todo:
+
+modify to send one tfd per fragment instead of using chunking. otherwise
+we need to heavily modify the ieee80211_skb_to_txb.
+*/
+
+static inline void ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)
+ txb->fragments[0]->data;
+ int i = 0;
+ struct tfd_frame *tfd;
+ struct clx2_tx_queue *txq = &priv->txq[0];
+ struct clx2_queue *q = &txq->q;
+ u8 id, hdr_len, unicast;
+ u16 remaining_bytes;
+
+ switch (priv->ieee->iw_mode) {
+ case IW_MODE_ADHOC:
+ hdr_len = IEEE80211_3ADDR_LEN;
+ unicast = !is_broadcast_ether_addr(hdr->addr1) &&
+ !is_multicast_ether_addr(hdr->addr1);
+ id = ipw_find_station(priv, hdr->addr1);
+ if (id == IPW_INVALID_STATION) {
+ id = ipw_add_station(priv, hdr->addr1);
+ if (id == IPW_INVALID_STATION) {
+ IPW_WARNING("Attempt to send data to "
+ "invalid cell: " MAC_FMT "\n",
+ MAC_ARG(hdr->addr1));
+ goto drop;
+ }
+ }
+ break;
+
+ case IW_MODE_INFRA:
+ default:
+ unicast = !is_broadcast_ether_addr(hdr->addr3) &&
+ !is_multicast_ether_addr(hdr->addr3);
+ hdr_len = IEEE80211_3ADDR_LEN;
+ id = 0;
+ break;
+ }
+
+ tfd = &txq->bd[q->first_empty];
+ txq->txb[q->first_empty] = txb;
+ memset(tfd, 0, sizeof(*tfd));
+ tfd->u.data.station_number = id;
+
+ tfd->control_flags.message_type = TX_FRAME_TYPE;
+ tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
+
+ tfd->u.data.cmd_id = DINO_CMD_TX;
+ tfd->u.data.len = txb->payload_size;
+ remaining_bytes = txb->payload_size;
+ if (unlikely(!unicast))
+ tfd->u.data.tx_flags = DCT_FLAG_NO_WEP;
+ else
+ tfd->u.data.tx_flags = DCT_FLAG_NO_WEP | DCT_FLAG_ACK_REQD;
+
+ if (priv->assoc_request.ieee_mode == IPW_B_MODE)
+ tfd->u.data.tx_flags_ext = DCT_FLAG_EXT_MODE_CCK;
+ else
+ tfd->u.data.tx_flags_ext = DCT_FLAG_EXT_MODE_OFDM;
+
+ if (priv->config & CFG_PREAMBLE)
+ tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREMBL;
+
+ memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
+
+ /* payload */
+ tfd->u.data.num_chunks = min((u8)(NUM_TFD_CHUNKS - 2), txb->nr_frags);
+ for (i = 0; i < tfd->u.data.num_chunks; i++) {
+ IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
+ i, tfd->u.data.num_chunks,
+ txb->fragments[i]->len - hdr_len);
+ printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
+ txb->fragments[i]->len - hdr_len);
+
+ tfd->u.data.chunk_ptr[i] = pci_map_single(
+ priv->pci_dev, txb->fragments[i]->data + hdr_len,
+ txb->fragments[i]->len - hdr_len, PCI_DMA_TODEVICE);
+ tfd->u.data.chunk_len[i] = txb->fragments[i]->len - hdr_len;
+ }
+
+ if (i != txb->nr_frags) {
+ struct sk_buff *skb;
+ u16 remaining_bytes = 0;
+ int j;
+
+ for (j = i; j < txb->nr_frags; j++)
+ remaining_bytes += txb->fragments[j]->len - hdr_len;
+
+ printk(KERN_INFO "Trying to reallocate for %d bytes\n",
+ remaining_bytes);
+ skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
+ if (skb != NULL) {
+ tfd->u.data.chunk_len[i] = remaining_bytes;
+ for (j = i; j < txb->nr_frags; j++) {
+ int size = txb->fragments[j]->len - hdr_len;
+ printk(KERN_INFO "Adding frag %d %d...\n",
+ j, size);
+ memcpy(skb_put(skb, size),
+ txb->fragments[j]->data + hdr_len,
+ size);
+ }
+ dev_kfree_skb_any(txb->fragments[i]);
+ txb->fragments[i] = skb;
+ tfd->u.data.chunk_ptr[i] = pci_map_single(
+ priv->pci_dev, skb->data,
+ tfd->u.data.chunk_len[i], PCI_DMA_TODEVICE);
+ tfd->u.data.num_chunks++;
+ }
+ }
+
+ /* kick DMA */
+ q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
+ ipw_write32(priv, q->reg_w, q->first_empty);
+
+ if (ipw_queue_space(q) < q->high_mark)
+ netif_stop_queue(priv->net_dev);
+
+ return;
+
+ drop:
+ IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
+ ieee80211_txb_free(txb);
+}
+
+static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb,
+ struct net_device *dev)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ unsigned long flags;
+
+ IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (!(priv->status & STATUS_ASSOCIATED)) {
+ IPW_DEBUG_INFO("Tx attempt while not associated.\n");
+ priv->ieee->stats.tx_carrier_errors++;
+ netif_stop_queue(dev);
+ goto fail_unlock;
+ }
+
+ ipw_tx_skb(priv, txb);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 0;
+
+ fail_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 1;
+}
+
+static struct net_device_stats *ipw_net_get_stats(struct net_device *dev)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ priv->ieee->stats.tx_packets = priv->tx_packets;
+ priv->ieee->stats.rx_packets = priv->rx_packets;
+ return &priv->ieee->stats;
+}
+
+static void ipw_net_set_multicast_list(struct net_device *dev)
+{
+
+}
+
+static int ipw_net_set_mac_address(struct net_device *dev, void *p)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ struct sockaddr *addr = p;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+ priv->config |= CFG_CUSTOM_MAC;
+ memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
+ printk(KERN_INFO "%s: Setting MAC to " MAC_FMT "\n",
+ priv->net_dev->name, MAC_ARG(priv->mac_addr));
+ ipw_adapter_restart(priv);
+ return 0;
+}
+
+static void ipw_ethtool_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct ipw_priv *p = ieee80211_priv(dev);
+ char vers[64];
+ char date[32];
+ u32 len;
+
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+
+ len = sizeof(vers);
+ ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
+ len = sizeof(date);
+ ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
+
+ snprintf(info->fw_version, sizeof(info->fw_version),"%s (%s)",
+ vers, date);
+ strcpy(info->bus_info, pci_name(p->pci_dev));
+ info->eedump_len = CX2_EEPROM_IMAGE_SIZE;
+}
+
+static u32 ipw_ethtool_get_link(struct net_device *dev)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ return (priv->status & STATUS_ASSOCIATED) != 0;
+}
+
+static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
+{
+ return CX2_EEPROM_IMAGE_SIZE;
+}
+
+static int ipw_ethtool_get_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ struct ipw_priv *p = ieee80211_priv(dev);
+
+ if (eeprom->offset + eeprom->len > CX2_EEPROM_IMAGE_SIZE)
+ return -EINVAL;
+
+ memcpy(bytes, &((u8 *)p->eeprom)[eeprom->offset], eeprom->len);
+ return 0;
+}
+
+static int ipw_ethtool_set_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ struct ipw_priv *p = ieee80211_priv(dev);
+ int i;
+
+ if (eeprom->offset + eeprom->len > CX2_EEPROM_IMAGE_SIZE)
+ return -EINVAL;
+
+ memcpy(&((u8 *)p->eeprom)[eeprom->offset], bytes, eeprom->len);
+ for (i = IPW_EEPROM_DATA;
+ i < IPW_EEPROM_DATA + CX2_EEPROM_IMAGE_SIZE;
+ i++)
+ ipw_write8(p, i, p->eeprom[i]);
+
+ return 0;
+}
+
+static struct ethtool_ops ipw_ethtool_ops = {
+ .get_link = ipw_ethtool_get_link,
+ .get_drvinfo = ipw_ethtool_get_drvinfo,
+ .get_eeprom_len = ipw_ethtool_get_eeprom_len,
+ .get_eeprom = ipw_ethtool_get_eeprom,
+ .set_eeprom = ipw_ethtool_set_eeprom,
+};
+
+static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
+{
+ struct ipw_priv *priv = data;
+ u32 inta, inta_mask;
+
+ if (!priv)
+ return IRQ_NONE;
+
+ spin_lock(&priv->lock);
+
+ if (!(priv->status & STATUS_INT_ENABLED)) {
+ /* Shared IRQ */
+ goto none;
+ }
+
+ inta = ipw_read32(priv, CX2_INTA_RW);
+ inta_mask = ipw_read32(priv, CX2_INTA_MASK_R);
+
+ if (inta == 0xFFFFFFFF) {
+ /* Hardware disappeared */
+ IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
+ goto none;
+ }
+
+ if (!(inta & (CX2_INTA_MASK_ALL & inta_mask))) {
+ /* Shared interrupt */
+ goto none;
+ }
+
+ /* tell the device to stop sending interrupts */
+ ipw_disable_interrupts(priv);
+
+ /* ack current interrupts */
+ inta &= (CX2_INTA_MASK_ALL & inta_mask);
+ ipw_write32(priv, CX2_INTA_RW, inta);
+
+ /* Cache INTA value for our tasklet */
+ priv->isr_inta = inta;
+
+ tasklet_schedule(&priv->irq_tasklet);
+
+ spin_unlock(&priv->lock);
+
+ return IRQ_HANDLED;
+ none:
+ spin_unlock(&priv->lock);
+ return IRQ_NONE;
+}
+
+static void ipw_rf_kill(void *adapter)
+{
+ struct ipw_priv *priv = adapter;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (rf_kill_active(priv)) {
+ IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
+ if (priv->workqueue)
+ queue_delayed_work(priv->workqueue,
+ &priv->rf_kill, 2 * HZ);
+ goto exit_unlock;
+ }
+
+ /* RF Kill is now disabled, so bring the device back up */
+
+ if (!(priv->status & STATUS_RF_KILL_MASK)) {
+ IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
+ "device\n");
+
+ /* we can not do an adapter restart while inside an irq lock */
+ queue_work(priv->workqueue, &priv->adapter_restart);
+ } else
+ IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
+ "enabled\n");
+
+ exit_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int ipw_setup_deferred_work(struct ipw_priv *priv)
+{
+ int ret = 0;
+
+#ifdef CONFIG_SOFTWARE_SUSPEND2
+ priv->workqueue = create_workqueue(DRV_NAME, 0);
+#else
+ priv->workqueue = create_workqueue(DRV_NAME);
+#endif
+ init_waitqueue_head(&priv->wait_command_queue);
+
+ INIT_WORK(&priv->adhoc_check, ipw_adhoc_check, priv);
+ INIT_WORK(&priv->associate, ipw_associate, priv);
+ INIT_WORK(&priv->disassociate, ipw_disassociate, priv);
+ INIT_WORK(&priv->rx_replenish, ipw_rx_queue_replenish, priv);
+ INIT_WORK(&priv->adapter_restart, ipw_adapter_restart, priv);
+ INIT_WORK(&priv->rf_kill, ipw_rf_kill, priv);
+ INIT_WORK(&priv->up, (void (*)(void *))ipw_up, priv);
+ INIT_WORK(&priv->down, (void (*)(void *))ipw_down, priv);
+ INIT_WORK(&priv->request_scan,
+ (void (*)(void *))ipw_request_scan, priv);
+ INIT_WORK(&priv->gather_stats,
+ (void (*)(void *))ipw_gather_stats, priv);
+ INIT_WORK(&priv->abort_scan, (void (*)(void *))ipw_abort_scan, priv);
+ INIT_WORK(&priv->roam, ipw_roam, priv);
+ INIT_WORK(&priv->scan_check, ipw_scan_check, priv);
+
+ tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+ ipw_irq_tasklet, (unsigned long)priv);
+
+ return ret;
+}
+
+
+static void shim__set_security(struct net_device *dev,
+ struct ieee80211_security *sec)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ if (sec->flags & (1 << i)) {
+ priv->sec.key_sizes[i] = sec->key_sizes[i];
+ if (sec->key_sizes[i] == 0)
+ priv->sec.flags &= ~(1 << i);
+ else
+ memcpy(priv->sec.keys[i], sec->keys[i],
+ sec->key_sizes[i]);
+ priv->sec.flags |= (1 << i);
+ priv->status |= STATUS_SECURITY_UPDATED;
+ }
+ }
+
+ if ((sec->flags & SEC_ACTIVE_KEY) &&
+ priv->sec.active_key != sec->active_key) {
+ if (sec->active_key <= 3) {
+ priv->sec.active_key = sec->active_key;
+ priv->sec.flags |= SEC_ACTIVE_KEY;
+ } else
+ priv->sec.flags &= ~SEC_ACTIVE_KEY;
+ priv->status |= STATUS_SECURITY_UPDATED;
+ }
+
+ if ((sec->flags & SEC_AUTH_MODE) &&
+ (priv->sec.auth_mode != sec->auth_mode)) {
+ priv->sec.auth_mode = sec->auth_mode;
+ priv->sec.flags |= SEC_AUTH_MODE;
+ if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
+ priv->capability |= CAP_SHARED_KEY;
+ else
+ priv->capability &= ~CAP_SHARED_KEY;
+ priv->status |= STATUS_SECURITY_UPDATED;
+ }
+
+ if (sec->flags & SEC_ENABLED &&
+ priv->sec.enabled != sec->enabled) {
+ priv->sec.flags |= SEC_ENABLED;
+ priv->sec.enabled = sec->enabled;
+ priv->status |= STATUS_SECURITY_UPDATED;
+ if (sec->enabled)
+ priv->capability |= CAP_PRIVACY_ON;
+ else
+ priv->capability &= ~CAP_PRIVACY_ON;
+ }
+
+ if (sec->flags & SEC_LEVEL &&
+ priv->sec.level != sec->level) {
+ priv->sec.level = sec->level;
+ priv->sec.flags |= SEC_LEVEL;
+ priv->status |= STATUS_SECURITY_UPDATED;
+ }
+
+ /* To match current functionality of ipw2100 (which works well w/
+ * various supplicants, we don't force a disassociate if the
+ * privacy capability changes ... */
+#if 0
+ if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
+ (((priv->assoc_request.capability &
+ WLAN_CAPABILITY_PRIVACY) && !sec->enabled) ||
+ (!(priv->assoc_request.capability &
+ WLAN_CAPABILITY_PRIVACY) && sec->enabled))) {
+ IPW_DEBUG_ASSOC("Disassociating due to capability "
+ "change.\n");
+ ipw_disassociate(priv);
+ }
+#endif
+}
+
+static int init_supported_rates(struct ipw_priv *priv,
+ struct ipw_supported_rates *rates)
+{
+ /* TODO: Mask out rates based on priv->rates_mask */
+
+ memset(rates, 0, sizeof(*rates));
+ /* configure supported rates */
+ switch (priv->ieee->freq_band) {
+ case IEEE80211_52GHZ_BAND:
+ rates->ieee_mode = IPW_A_MODE;
+ rates->purpose = IPW_RATE_CAPABILITIES;
+ ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
+ IEEE80211_OFDM_DEFAULT_RATES_MASK);
+ break;
+
+ default: /* Mixed or 2.4Ghz */
+ rates->ieee_mode = IPW_G_MODE;
+ rates->purpose = IPW_RATE_CAPABILITIES;
+ ipw_add_cck_scan_rates(rates, IEEE80211_CCK_MODULATION,
+ IEEE80211_CCK_DEFAULT_RATES_MASK);
+ if (priv->ieee->modulation & IEEE80211_OFDM_MODULATION) {
+ ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
+ IEEE80211_OFDM_DEFAULT_RATES_MASK);
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static int ipw_config(struct ipw_priv *priv)
+{
+ int i;
+ struct ipw_tx_power tx_power;
+
+ memset(&priv->sys_config, 0, sizeof(priv->sys_config));
+ memset(&tx_power, 0, sizeof(tx_power));
+
+ /* This is only called from ipw_up, which resets/reloads the firmware
+ so, we don't need to first disable the card before we configure
+ it */
+
+ /* configure device for 'G' band */
+ tx_power.ieee_mode = IPW_G_MODE;
+ tx_power.num_channels = 11;
+ for (i = 0; i < 11; i++) {
+ tx_power.channels_tx_power[i].channel_number = i + 1;
+ tx_power.channels_tx_power[i].tx_power = priv->tx_power;
+ }
+ if (ipw_send_tx_power(priv, &tx_power))
+ goto error;
+
+ /* configure device to also handle 'B' band */
+ tx_power.ieee_mode = IPW_B_MODE;
+ if (ipw_send_tx_power(priv, &tx_power))
+ goto error;
+
+ /* initialize adapter address */
+ if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
+ goto error;
+
+ /* set basic system config settings */
+ init_sys_config(&priv->sys_config);
+ if (ipw_send_system_config(priv, &priv->sys_config))
+ goto error;
+
+ init_supported_rates(priv, &priv->rates);
+ if (ipw_send_supported_rates(priv, &priv->rates))
+ goto error;
+
+ /* Set request-to-send threshold */
+ if (priv->rts_threshold) {
+ if (ipw_send_rts_threshold(priv, priv->rts_threshold))
+ goto error;
+ }
+
+ if (ipw_set_random_seed(priv))
+ goto error;
+
+ /* final state transition to the RUN state */
+ if (ipw_send_host_complete(priv))
+ goto error;
+
+ /* If configured to try and auto-associate, kick off a scan */
+ if ((priv->config & CFG_ASSOCIATE) && ipw_request_scan(priv))
+ goto error;
+
+ return 0;
+
+ error:
+ return -EIO;
+}
+
+#define MAX_HW_RESTARTS 5
+static int ipw_up(struct ipw_priv *priv)
+{
+ int rc, i;
+
+ if (priv->status & STATUS_EXIT_PENDING)
+ return -EIO;
+
+ for (i = 0; i < MAX_HW_RESTARTS; i++ ) {
+ /* Load the microcode, firmware, and eeprom.
+ * Also start the clocks. */
+ rc = ipw_load(priv);
+ if (rc) {
+ IPW_ERROR("Unable to load firmware: 0x%08X\n",
+ rc);
+ return rc;
+ }
+
+ ipw_init_ordinals(priv);
+ if (!(priv->config & CFG_CUSTOM_MAC))
+ eeprom_parse_mac(priv, priv->mac_addr);
+ memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
+
+ if (priv->status & STATUS_RF_KILL_MASK)
+ return 0;
+
+ rc = ipw_config(priv);
+ if (!rc) {
+ IPW_DEBUG_INFO("Configured device on count %i\n", i);
+ priv->notif_missed_beacons = 0;
+ netif_start_queue(priv->net_dev);
+ return 0;
+ } else {
+ IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n",
+ rc);
+ }
+
+ IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
+ i, MAX_HW_RESTARTS);
+
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ ipw_down(priv);
+ }
+
+ /* tried to restart and config the device for as long as our
+ * patience could withstand */
+ IPW_ERROR("Unable to initialize device after %d attempts.\n",
+ i);
+ return -EIO;
+}
+
+static void ipw_down(struct ipw_priv *priv)
+{
+ /* Attempt to disable the card */
+#if 0
+ ipw_send_card_disable(priv, 0);
+#endif
+
+ /* tell the device to stop sending interrupts */
+ ipw_disable_interrupts(priv);
+
+ /* Clear all bits but the RF Kill */
+ priv->status &= STATUS_RF_KILL_MASK;
+
+ netif_carrier_off(priv->net_dev);
+ netif_stop_queue(priv->net_dev);
+
+ ipw_stop_nic(priv);
+}
+
+/* Called by register_netdev() */
+static int ipw_net_init(struct net_device *dev)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+
+ if (priv->status & STATUS_RF_KILL_SW) {
+ IPW_WARNING("Radio disabled by module parameter.\n");
+ return 0;
+ } else if (rf_kill_active(priv)) {
+ IPW_WARNING("Radio Frequency Kill Switch is On:\n"
+ "Kill switch must be turned off for "
+ "wireless networking to work.\n");
+ queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
+ return 0;
+ }
+
+ if (ipw_up(priv))
+ return -EIO;
+
+ return 0;
+}
+
+/* PCI driver stuff */
+static struct pci_device_id card_ids[] = {
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x104f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {PCI_VENDOR_ID_INTEL, 0x4220, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
+ {PCI_VENDOR_ID_INTEL, 0x4221, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 2225BG */
+ {PCI_VENDOR_ID_INTEL, 0x4223, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
+ {PCI_VENDOR_ID_INTEL, 0x4224, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
+
+ /* required last entry */
+ {0,}
+};
+
+MODULE_DEVICE_TABLE(pci, card_ids);
+
+static struct attribute *ipw_sysfs_entries[] = {
+ &dev_attr_rf_kill.attr,
+ &dev_attr_direct_dword.attr,
+ &dev_attr_indirect_byte.attr,
+ &dev_attr_indirect_dword.attr,
+ &dev_attr_mem_gpio_reg.attr,
+ &dev_attr_command_event_reg.attr,
+ &dev_attr_nic_type.attr,
+ &dev_attr_status.attr,
+ &dev_attr_cfg.attr,
+ &dev_attr_dump_errors.attr,
+ &dev_attr_dump_events.attr,
+ &dev_attr_eeprom_delay.attr,
+ &dev_attr_ucode_version.attr,
+ &dev_attr_rtc.attr,
+ NULL
+};
+
+static struct attribute_group ipw_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = ipw_sysfs_entries,
+};
+
+static int ipw_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ int err = 0;
+ struct net_device *net_dev;
+ void __iomem *base;
+ u32 length, val;
+ struct ipw_priv *priv;
+ int band, modulation;
+
+ net_dev = alloc_ieee80211(sizeof(struct ipw_priv));
+ if (net_dev == NULL) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ priv = ieee80211_priv(net_dev);
+ priv->ieee = netdev_priv(net_dev);
+ priv->net_dev = net_dev;
+ priv->pci_dev = pdev;
+#ifdef CONFIG_IPW_DEBUG
+ ipw_debug_level = debug;
+#endif
+ spin_lock_init(&priv->lock);
+
+ if (pci_enable_device(pdev)) {
+ err = -ENODEV;
+ goto out_free_ieee80211;
+ }
+
+ pci_set_master(pdev);
+
+#define PCI_DMA_32BIT 0x00000000ffffffffULL
+ err = pci_set_dma_mask(pdev, PCI_DMA_32BIT);
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, PCI_DMA_32BIT);
+ if (err) {
+ printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
+ goto out_pci_disable_device;
+ }
+
+ pci_set_drvdata(pdev, priv);
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err)
+ goto out_pci_disable_device;
+
+ /* We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_read_config_dword(pdev, 0x40, &val);
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+
+ length = pci_resource_len(pdev, 0);
+ priv->hw_len = length;
+
+ base = ioremap_nocache(pci_resource_start(pdev, 0), length);
+ if (!base) {
+ err = -ENODEV;
+ goto out_pci_release_regions;
+ }
+
+ priv->hw_base = base;
+ IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
+ IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
+
+ err = ipw_setup_deferred_work(priv);
+ if (err) {
+ IPW_ERROR("Unable to setup deferred work\n");
+ goto out_iounmap;
+ }
+
+ /* Initialize module parameter values here */
+ if (ifname)
+ strncpy(net_dev->name, ifname, IFNAMSIZ);
+
+ if (associate)
+ priv->config |= CFG_ASSOCIATE;
+ else
+ IPW_DEBUG_INFO("Auto associate disabled.\n");
+
+ if (auto_create)
+ priv->config |= CFG_ADHOC_CREATE;
+ else
+ IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
+
+ if (disable) {
+ priv->status |= STATUS_RF_KILL_SW;
+ IPW_DEBUG_INFO("Radio disabled.\n");
+ }
+
+ if (channel != 0) {
+ priv->config |= CFG_STATIC_CHANNEL;
+ priv->channel = channel;
+ IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
+ IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
+ /* TODO: Validate that provided channel is in range */
+ }
+
+ switch (mode) {
+ case 1:
+ priv->ieee->iw_mode = IW_MODE_ADHOC;
+ break;
+#ifdef CONFIG_IPW_PROMISC
+ case 2:
+ priv->ieee->iw_mode = IW_MODE_MONITOR;
+ break;
+#endif
+ default:
+ case 0:
+ priv->ieee->iw_mode = IW_MODE_INFRA;
+ break;
+ }
+
+ if ((priv->pci_dev->device == 0x4223) ||
+ (priv->pci_dev->device == 0x4224)) {
+ printk(KERN_INFO DRV_NAME
+ ": Detected Intel PRO/Wireless 2915ABG Network "
+ "Connection\n");
+ priv->ieee->abg_ture = 1;
+ band = IEEE80211_52GHZ_BAND | IEEE80211_24GHZ_BAND;
+ modulation = IEEE80211_OFDM_MODULATION |
+ IEEE80211_CCK_MODULATION;
+ priv->adapter = IPW_2915ABG;
+ priv->ieee->mode = IEEE_A|IEEE_G|IEEE_B;
+ } else {
+ if (priv->pci_dev->device == 0x4221)
+ printk(KERN_INFO DRV_NAME
+ ": Detected Intel PRO/Wireless 2225BG Network "
+ "Connection\n");
+ else
+ printk(KERN_INFO DRV_NAME
+ ": Detected Intel PRO/Wireless 2200BG Network "
+ "Connection\n");
+
+ priv->ieee->abg_ture = 0;
+ band = IEEE80211_24GHZ_BAND;
+ modulation = IEEE80211_OFDM_MODULATION |
+ IEEE80211_CCK_MODULATION;
+ priv->adapter = IPW_2200BG;
+ priv->ieee->mode = IEEE_G|IEEE_B;
+ }
+
+ priv->ieee->freq_band = band;
+ priv->ieee->modulation = modulation;
+
+ priv->rates_mask = IEEE80211_DEFAULT_RATES_MASK;
+
+ priv->missed_beacon_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
+ priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
+
+ priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
+
+ /* If power management is turned on, default to AC mode */
+ priv->power_mode = IPW_POWER_AC;
+ priv->tx_power = IPW_DEFAULT_TX_POWER;
+
+ err = request_irq(pdev->irq, ipw_isr, SA_SHIRQ, DRV_NAME,
+ priv);
+ if (err) {
+ IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
+ goto out_destroy_workqueue;
+ }
+
+ SET_MODULE_OWNER(net_dev);
+ SET_NETDEV_DEV(net_dev, &pdev->dev);
+
+ priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
+ priv->ieee->set_security = shim__set_security;
+
+ net_dev->open = ipw_net_open;
+ net_dev->stop = ipw_net_stop;
+ net_dev->init = ipw_net_init;
+ net_dev->get_stats = ipw_net_get_stats;
+ net_dev->set_multicast_list = ipw_net_set_multicast_list;
+ net_dev->set_mac_address = ipw_net_set_mac_address;
+ net_dev->get_wireless_stats = ipw_get_wireless_stats;
+ net_dev->wireless_handlers = &ipw_wx_handler_def;
+ net_dev->ethtool_ops = &ipw_ethtool_ops;
+ net_dev->irq = pdev->irq;
+ net_dev->base_addr = (unsigned long )priv->hw_base;
+ net_dev->mem_start = pci_resource_start(pdev, 0);
+ net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1;
+
+ err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
+ if (err) {
+ IPW_ERROR("failed to create sysfs device attributes\n");
+ goto out_release_irq;
+ }
+
+ err = register_netdev(net_dev);
+ if (err) {
+ IPW_ERROR("failed to register network device\n");
+ goto out_remove_group;
+ }
+
+ return 0;
+
+ out_remove_group:
+ sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
+ out_release_irq:
+ free_irq(pdev->irq, priv);
+ out_destroy_workqueue:
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+ out_iounmap:
+ iounmap(priv->hw_base);
+ out_pci_release_regions:
+ pci_release_regions(pdev);
+ out_pci_disable_device:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ out_free_ieee80211:
+ free_ieee80211(priv->net_dev);
+ out:
+ return err;
+}
+
+static void ipw_pci_remove(struct pci_dev *pdev)
+{
+ struct ipw_priv *priv = pci_get_drvdata(pdev);
+ if (!priv)
+ return;
+
+ priv->status |= STATUS_EXIT_PENDING;
+
+ sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
+
+ ipw_down(priv);
+
+ unregister_netdev(priv->net_dev);
+
+ if (priv->rxq) {
+ ipw_rx_queue_free(priv, priv->rxq);
+ priv->rxq = NULL;
+ }
+ ipw_tx_queue_free(priv);
+
+ /* ipw_down will ensure that there is no more pending work
+ * in the workqueue's, so we can safely remove them now. */
+ if (priv->workqueue) {
+ cancel_delayed_work(&priv->adhoc_check);
+ cancel_delayed_work(&priv->gather_stats);
+ cancel_delayed_work(&priv->request_scan);
+ cancel_delayed_work(&priv->rf_kill);
+ cancel_delayed_work(&priv->scan_check);
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+ }
+
+ free_irq(pdev->irq, priv);
+ iounmap(priv->hw_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ free_ieee80211(priv->net_dev);
+
+#ifdef CONFIG_PM
+ if (fw_loaded) {
+ release_firmware(bootfw);
+ release_firmware(ucode);
+ release_firmware(firmware);
+ fw_loaded = 0;
+ }
+#endif
+}
+
+
+#ifdef CONFIG_PM
+static int ipw_pci_suspend(struct pci_dev *pdev, u32 state)
+{
+ struct ipw_priv *priv = pci_get_drvdata(pdev);
+ struct net_device *dev = priv->net_dev;
+
+ printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
+
+ /* Take down the device; powers it off, etc. */
+ ipw_down(priv);
+
+ /* Remove the PRESENT state of the device */
+ netif_device_detach(dev);
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+ pci_save_state(pdev, priv->pm_state);
+#else
+ pci_save_state(pdev);
+#endif
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, state);
+
+ return 0;
+}
+
+static int ipw_pci_resume(struct pci_dev *pdev)
+{
+ struct ipw_priv *priv = pci_get_drvdata(pdev);
+ struct net_device *dev = priv->net_dev;
+ u32 val;
+
+ printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
+
+ pci_set_power_state(pdev, 0);
+ pci_enable_device(pdev);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+ pci_restore_state(pdev, priv->pm_state);
+#else
+ pci_restore_state(pdev);
+#endif
+ /*
+ * Suspend/Resume resets the PCI configuration space, so we have to
+ * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
+ * from interfering with C3 CPU state. pci_restore_state won't help
+ * here since it only restores the first 64 bytes pci config header.
+ */
+ pci_read_config_dword(pdev, 0x40, &val);
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+
+ /* Set the device back into the PRESENT state; this will also wake
+ * the queue of needed */
+ netif_device_attach(dev);
+
+ /* Bring the device back up */
+ queue_work(priv->workqueue, &priv->up);
+
+ return 0;
+}
+#endif
+
+/* driver initialization stuff */
+static struct pci_driver ipw_driver = {
+ .name = DRV_NAME,
+ .id_table = card_ids,
+ .probe = ipw_pci_probe,
+ .remove = __devexit_p(ipw_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = ipw_pci_suspend,
+ .resume = ipw_pci_resume,
+#endif
+};
+
+static int __init ipw_init(void)
+{
+ int ret;
+
+ printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+
+ ret = pci_module_init(&ipw_driver);
+ if (ret) {
+ IPW_ERROR("Unable to initialize PCI module\n");
+ return ret;
+ }
+
+ ret = driver_create_file(&ipw_driver.driver,
+ &driver_attr_debug_level);
+ if (ret) {
+ IPW_ERROR("Unable to create driver sysfs file\n");
+ pci_unregister_driver(&ipw_driver);
+ return ret;
+ }
+
+ return ret;
+}
+
+static void __exit ipw_exit(void)
+{
+ driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
+ pci_unregister_driver(&ipw_driver);
+}
+
+module_param(disable, int, 0444);
+MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
+
+module_param(associate, int, 0444);
+MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
+
+module_param(auto_create, int, 0444);
+MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
+
+module_param(debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+
+module_param(channel, int, 0444);
+MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
+
+module_param(ifname, charp, 0444);
+MODULE_PARM_DESC(ifname, "network device name (default eth%d)");
+
+#ifdef CONFIG_IPW_PROMISC
+module_param(mode, int, 0444);
+MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
+#else
+module_param(mode, int, 0444);
+MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
+#endif
+
+module_exit(ipw_exit);
+module_init(ipw_init);