Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1 | /* |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 2 | * This file is part of wl1251 |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2008-2009 Nokia Corporation |
| 5 | * |
| 6 | * Contact: Kalle Valo <kalle.valo@nokia.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 20 | * 02110-1301 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/firmware.h> |
| 27 | #include <linux/delay.h> |
| 28 | #include <linux/irq.h> |
| 29 | #include <linux/spi/spi.h> |
| 30 | #include <linux/crc32.h> |
| 31 | #include <linux/etherdevice.h> |
| 32 | #include <linux/spi/wl12xx.h> |
| 33 | |
Kalle Valo | 1367411 | 2009-06-12 14:17:25 +0300 | [diff] [blame] | 34 | #include "wl1251.h" |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 35 | #include "wl12xx_80211.h" |
| 36 | #include "reg.h" |
Kalle Valo | e6f0b5c | 2009-06-12 14:16:58 +0300 | [diff] [blame] | 37 | #include "wl1251_ops.h" |
Kalle Valo | ef2f8d4 | 2009-06-12 14:17:19 +0300 | [diff] [blame] | 38 | #include "wl1251_spi.h" |
| 39 | #include "wl1251_event.h" |
Juuso Oikarinen | 9f2ad4f | 2009-06-12 14:15:54 +0300 | [diff] [blame] | 40 | #include "wl1251_tx.h" |
Kalle Valo | ef2f8d4 | 2009-06-12 14:17:19 +0300 | [diff] [blame] | 41 | #include "wl1251_rx.h" |
| 42 | #include "wl1251_ps.h" |
| 43 | #include "wl1251_init.h" |
| 44 | #include "wl1251_debugfs.h" |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 45 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 46 | static void wl1251_disable_interrupts(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 47 | { |
| 48 | disable_irq(wl->irq); |
| 49 | } |
| 50 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 51 | static void wl1251_power_off(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 52 | { |
| 53 | wl->set_power(false); |
| 54 | } |
| 55 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 56 | static void wl1251_power_on(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 57 | { |
| 58 | wl->set_power(true); |
| 59 | } |
| 60 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 61 | static irqreturn_t wl1251_irq(int irq, void *cookie) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 62 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 63 | struct wl1251 *wl; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 64 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 65 | wl1251_debug(DEBUG_IRQ, "IRQ"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 66 | |
| 67 | wl = cookie; |
| 68 | |
| 69 | schedule_work(&wl->irq_work); |
| 70 | |
| 71 | return IRQ_HANDLED; |
| 72 | } |
| 73 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 74 | static int wl1251_fetch_firmware(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 75 | { |
| 76 | const struct firmware *fw; |
| 77 | int ret; |
| 78 | |
| 79 | ret = request_firmware(&fw, wl->chip.fw_filename, &wl->spi->dev); |
| 80 | |
| 81 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 82 | wl1251_error("could not get firmware: %d", ret); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | if (fw->size % 4) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 87 | wl1251_error("firmware size is not multiple of 32 bits: %zu", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 88 | fw->size); |
| 89 | ret = -EILSEQ; |
| 90 | goto out; |
| 91 | } |
| 92 | |
| 93 | wl->fw_len = fw->size; |
| 94 | wl->fw = kmalloc(wl->fw_len, GFP_KERNEL); |
| 95 | |
| 96 | if (!wl->fw) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 97 | wl1251_error("could not allocate memory for the firmware"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 98 | ret = -ENOMEM; |
| 99 | goto out; |
| 100 | } |
| 101 | |
| 102 | memcpy(wl->fw, fw->data, wl->fw_len); |
| 103 | |
| 104 | ret = 0; |
| 105 | |
| 106 | out: |
| 107 | release_firmware(fw); |
| 108 | |
| 109 | return ret; |
| 110 | } |
| 111 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 112 | static int wl1251_fetch_nvs(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 113 | { |
| 114 | const struct firmware *fw; |
| 115 | int ret; |
| 116 | |
| 117 | ret = request_firmware(&fw, wl->chip.nvs_filename, &wl->spi->dev); |
| 118 | |
| 119 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 120 | wl1251_error("could not get nvs file: %d", ret); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 121 | return ret; |
| 122 | } |
| 123 | |
| 124 | if (fw->size % 4) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 125 | wl1251_error("nvs size is not multiple of 32 bits: %zu", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 126 | fw->size); |
| 127 | ret = -EILSEQ; |
| 128 | goto out; |
| 129 | } |
| 130 | |
| 131 | wl->nvs_len = fw->size; |
| 132 | wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL); |
| 133 | |
| 134 | if (!wl->nvs) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 135 | wl1251_error("could not allocate memory for the nvs file"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 136 | ret = -ENOMEM; |
| 137 | goto out; |
| 138 | } |
| 139 | |
| 140 | memcpy(wl->nvs, fw->data, wl->nvs_len); |
| 141 | |
| 142 | ret = 0; |
| 143 | |
| 144 | out: |
| 145 | release_firmware(fw); |
| 146 | |
| 147 | return ret; |
| 148 | } |
| 149 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 150 | static void wl1251_fw_wakeup(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 151 | { |
| 152 | u32 elp_reg; |
| 153 | |
| 154 | elp_reg = ELPCTRL_WAKE_UP; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 155 | wl1251_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); |
| 156 | elp_reg = wl1251_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 157 | |
| 158 | if (!(elp_reg & ELPCTRL_WLAN_READY)) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 159 | wl1251_warning("WLAN not ready"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 160 | } |
| 161 | } |
| 162 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 163 | static int wl1251_chip_wakeup(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 164 | { |
| 165 | int ret = 0; |
| 166 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 167 | wl1251_power_on(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 168 | msleep(wl->chip.power_on_sleep); |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 169 | wl1251_spi_reset(wl); |
| 170 | wl1251_spi_init(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 171 | |
| 172 | /* We don't need a real memory partition here, because we only want |
| 173 | * to use the registers at this point. */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 174 | wl1251_set_partition(wl, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 175 | 0x00000000, |
| 176 | 0x00000000, |
| 177 | REGISTERS_BASE, |
| 178 | REGISTERS_DOWN_SIZE); |
| 179 | |
| 180 | /* ELP module wake up */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 181 | wl1251_fw_wakeup(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 182 | |
| 183 | /* whal_FwCtrl_BootSm() */ |
| 184 | |
| 185 | /* 0. read chip id from CHIP_ID */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 186 | wl->chip.id = wl1251_reg_read32(wl, CHIP_ID_B); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 187 | |
| 188 | /* 1. check if chip id is valid */ |
| 189 | |
| 190 | switch (wl->chip.id) { |
| 191 | case CHIP_ID_1251_PG12: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 192 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 193 | wl->chip.id); |
| 194 | |
| 195 | wl1251_setup(wl); |
| 196 | |
| 197 | break; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 198 | case CHIP_ID_1251_PG10: |
| 199 | case CHIP_ID_1251_PG11: |
| 200 | default: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 201 | wl1251_error("unsupported chip id: 0x%x", wl->chip.id); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 202 | ret = -ENODEV; |
| 203 | goto out; |
| 204 | } |
| 205 | |
| 206 | if (wl->fw == NULL) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 207 | ret = wl1251_fetch_firmware(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 208 | if (ret < 0) |
| 209 | goto out; |
| 210 | } |
| 211 | |
| 212 | /* No NVS from netlink, try to get it from the filesystem */ |
| 213 | if (wl->nvs == NULL) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 214 | ret = wl1251_fetch_nvs(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 215 | if (ret < 0) |
| 216 | goto out; |
| 217 | } |
| 218 | |
| 219 | out: |
| 220 | return ret; |
| 221 | } |
| 222 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 223 | static void wl1251_filter_work(struct work_struct *work) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 224 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 225 | struct wl1251 *wl = |
| 226 | container_of(work, struct wl1251, filter_work); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 227 | int ret; |
| 228 | |
| 229 | mutex_lock(&wl->mutex); |
| 230 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 231 | if (wl->state == WL1251_STATE_OFF) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 232 | goto out; |
| 233 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 234 | ret = wl1251_ps_elp_wakeup(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 235 | if (ret < 0) |
| 236 | goto out; |
| 237 | |
Juuso Oikarinen | 77cc9e4 | 2009-06-12 14:16:52 +0300 | [diff] [blame] | 238 | /* FIXME: replace the magic numbers with proper definitions */ |
| 239 | ret = wl->chip.op_cmd_join(wl, wl->bss_type, 1, 100, 0); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 240 | if (ret < 0) |
| 241 | goto out_sleep; |
| 242 | |
| 243 | out_sleep: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 244 | wl1251_ps_elp_sleep(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 245 | |
| 246 | out: |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 247 | mutex_unlock(&wl->mutex); |
| 248 | } |
| 249 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 250 | int wl1251_plt_start(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 251 | { |
| 252 | int ret; |
| 253 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 254 | mutex_lock(&wl->mutex); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 255 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 256 | wl1251_notice("power up"); |
| 257 | |
| 258 | if (wl->state != WL1251_STATE_OFF) { |
| 259 | wl1251_error("cannot go into PLT state because not " |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 260 | "in off state: %d", wl->state); |
| 261 | return -EBUSY; |
| 262 | } |
| 263 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 264 | wl->state = WL1251_STATE_PLT; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 265 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 266 | ret = wl1251_chip_wakeup(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 267 | if (ret < 0) |
| 268 | return ret; |
| 269 | |
| 270 | ret = wl->chip.op_boot(wl); |
| 271 | if (ret < 0) |
| 272 | return ret; |
| 273 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 274 | wl1251_notice("firmware booted in PLT mode (%s)", wl->chip.fw_ver); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 275 | |
| 276 | ret = wl->chip.op_plt_init(wl); |
| 277 | if (ret < 0) |
| 278 | return ret; |
| 279 | |
| 280 | return 0; |
| 281 | } |
| 282 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 283 | int wl1251_plt_stop(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 284 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 285 | mutex_lock(&wl->mutex); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 286 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 287 | wl1251_notice("power down"); |
| 288 | |
| 289 | if (wl->state != WL1251_STATE_PLT) { |
| 290 | wl1251_error("cannot power down because not in PLT " |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 291 | "state: %d", wl->state); |
| 292 | return -EBUSY; |
| 293 | } |
| 294 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 295 | wl1251_disable_interrupts(wl); |
| 296 | wl1251_power_off(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 297 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 298 | wl->state = WL1251_STATE_OFF; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 299 | |
| 300 | return 0; |
| 301 | } |
| 302 | |
| 303 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 304 | static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 305 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 306 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 307 | |
| 308 | skb_queue_tail(&wl->tx_queue, skb); |
| 309 | |
Juuso Oikarinen | 9f2ad4f | 2009-06-12 14:15:54 +0300 | [diff] [blame] | 310 | /* |
| 311 | * The chip specific setup must run before the first TX packet - |
| 312 | * before that, the tx_work will not be initialized! |
| 313 | */ |
| 314 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 315 | schedule_work(&wl->tx_work); |
| 316 | |
| 317 | /* |
| 318 | * The workqueue is slow to process the tx_queue and we need stop |
| 319 | * the queue here, otherwise the queue will get too long. |
| 320 | */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 321 | if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_MAX_LENGTH) { |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 322 | ieee80211_stop_queues(wl->hw); |
| 323 | |
| 324 | /* |
| 325 | * FIXME: this is racy, the variable is not properly |
| 326 | * protected. Maybe fix this by removing the stupid |
| 327 | * variable altogether and checking the real queue state? |
| 328 | */ |
| 329 | wl->tx_queue_stopped = true; |
| 330 | } |
| 331 | |
| 332 | return NETDEV_TX_OK; |
| 333 | } |
| 334 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 335 | static int wl1251_op_start(struct ieee80211_hw *hw) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 336 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 337 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 338 | int ret = 0; |
| 339 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 340 | wl1251_debug(DEBUG_MAC80211, "mac80211 start"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 341 | |
| 342 | mutex_lock(&wl->mutex); |
| 343 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 344 | if (wl->state != WL1251_STATE_OFF) { |
| 345 | wl1251_error("cannot start because not in off state: %d", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 346 | wl->state); |
| 347 | ret = -EBUSY; |
| 348 | goto out; |
| 349 | } |
| 350 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 351 | ret = wl1251_chip_wakeup(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 352 | if (ret < 0) |
| 353 | return ret; |
| 354 | |
| 355 | ret = wl->chip.op_boot(wl); |
| 356 | if (ret < 0) |
| 357 | goto out; |
| 358 | |
| 359 | ret = wl->chip.op_hw_init(wl); |
| 360 | if (ret < 0) |
| 361 | goto out; |
| 362 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 363 | ret = wl1251_acx_station_id(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 364 | if (ret < 0) |
| 365 | goto out; |
| 366 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 367 | wl->state = WL1251_STATE_ON; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 368 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 369 | wl1251_info("firmware booted (%s)", wl->chip.fw_ver); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 370 | |
| 371 | out: |
| 372 | if (ret < 0) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 373 | wl1251_power_off(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 374 | |
| 375 | mutex_unlock(&wl->mutex); |
| 376 | |
| 377 | return ret; |
| 378 | } |
| 379 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 380 | static void wl1251_op_stop(struct ieee80211_hw *hw) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 381 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 382 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 383 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 384 | wl1251_info("down"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 385 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 386 | wl1251_debug(DEBUG_MAC80211, "mac80211 stop"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 387 | |
| 388 | mutex_lock(&wl->mutex); |
| 389 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 390 | WARN_ON(wl->state != WL1251_STATE_ON); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 391 | |
| 392 | if (wl->scanning) { |
| 393 | mutex_unlock(&wl->mutex); |
| 394 | ieee80211_scan_completed(wl->hw, true); |
| 395 | mutex_lock(&wl->mutex); |
| 396 | wl->scanning = false; |
| 397 | } |
| 398 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 399 | wl->state = WL1251_STATE_OFF; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 400 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 401 | wl1251_disable_interrupts(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 402 | |
| 403 | mutex_unlock(&wl->mutex); |
| 404 | |
| 405 | cancel_work_sync(&wl->irq_work); |
| 406 | cancel_work_sync(&wl->tx_work); |
| 407 | cancel_work_sync(&wl->filter_work); |
| 408 | |
| 409 | mutex_lock(&wl->mutex); |
| 410 | |
| 411 | /* let's notify MAC80211 about the remaining pending TX frames */ |
Juuso Oikarinen | 9f2ad4f | 2009-06-12 14:15:54 +0300 | [diff] [blame] | 412 | wl->chip.op_tx_flush(wl); |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 413 | wl1251_power_off(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 414 | |
| 415 | memset(wl->bssid, 0, ETH_ALEN); |
| 416 | wl->listen_int = 1; |
| 417 | wl->bss_type = MAX_BSS_TYPE; |
| 418 | |
| 419 | wl->data_in_count = 0; |
| 420 | wl->rx_counter = 0; |
| 421 | wl->rx_handled = 0; |
| 422 | wl->rx_current_buffer = 0; |
| 423 | wl->rx_last_id = 0; |
| 424 | wl->next_tx_complete = 0; |
| 425 | wl->elp = false; |
| 426 | wl->psm = 0; |
| 427 | wl->tx_queue_stopped = false; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 428 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 429 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 430 | wl1251_debugfs_reset(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 431 | |
| 432 | mutex_unlock(&wl->mutex); |
| 433 | } |
| 434 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 435 | static int wl1251_op_add_interface(struct ieee80211_hw *hw, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 436 | struct ieee80211_if_init_conf *conf) |
| 437 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 438 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 439 | DECLARE_MAC_BUF(mac); |
| 440 | int ret = 0; |
| 441 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 442 | wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %s", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 443 | conf->type, print_mac(mac, conf->mac_addr)); |
| 444 | |
| 445 | mutex_lock(&wl->mutex); |
| 446 | |
| 447 | switch (conf->type) { |
| 448 | case NL80211_IFTYPE_STATION: |
| 449 | wl->bss_type = BSS_TYPE_STA_BSS; |
| 450 | break; |
| 451 | case NL80211_IFTYPE_ADHOC: |
| 452 | wl->bss_type = BSS_TYPE_IBSS; |
| 453 | break; |
| 454 | default: |
| 455 | ret = -EOPNOTSUPP; |
| 456 | goto out; |
| 457 | } |
| 458 | |
| 459 | if (memcmp(wl->mac_addr, conf->mac_addr, ETH_ALEN)) { |
| 460 | memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); |
| 461 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 462 | ret = wl1251_acx_station_id(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 463 | if (ret < 0) |
| 464 | goto out; |
| 465 | } |
| 466 | |
| 467 | out: |
| 468 | mutex_unlock(&wl->mutex); |
| 469 | return ret; |
| 470 | } |
| 471 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 472 | static void wl1251_op_remove_interface(struct ieee80211_hw *hw, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 473 | struct ieee80211_if_init_conf *conf) |
| 474 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 475 | wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 476 | } |
| 477 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 478 | static int wl1251_build_null_data(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 479 | { |
| 480 | struct wl12xx_null_data_template template; |
| 481 | |
| 482 | if (!is_zero_ether_addr(wl->bssid)) { |
| 483 | memcpy(template.header.da, wl->bssid, ETH_ALEN); |
| 484 | memcpy(template.header.bssid, wl->bssid, ETH_ALEN); |
| 485 | } else { |
| 486 | memset(template.header.da, 0xff, ETH_ALEN); |
| 487 | memset(template.header.bssid, 0xff, ETH_ALEN); |
| 488 | } |
| 489 | |
| 490 | memcpy(template.header.sa, wl->mac_addr, ETH_ALEN); |
| 491 | template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| 492 | IEEE80211_STYPE_NULLFUNC); |
| 493 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 494 | return wl1251_cmd_template_set(wl, CMD_NULL_DATA, &template, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 495 | sizeof(template)); |
| 496 | |
| 497 | } |
| 498 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 499 | static int wl1251_build_ps_poll(struct wl1251 *wl, u16 aid) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 500 | { |
| 501 | struct wl12xx_ps_poll_template template; |
| 502 | |
| 503 | memcpy(template.bssid, wl->bssid, ETH_ALEN); |
| 504 | memcpy(template.ta, wl->mac_addr, ETH_ALEN); |
| 505 | template.aid = aid; |
| 506 | template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); |
| 507 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 508 | return wl1251_cmd_template_set(wl, CMD_PS_POLL, &template, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 509 | sizeof(template)); |
| 510 | |
| 511 | } |
| 512 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 513 | static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 514 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 515 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 516 | struct ieee80211_conf *conf = &hw->conf; |
| 517 | int channel, ret = 0; |
| 518 | |
| 519 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); |
| 520 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 521 | wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 522 | channel, |
| 523 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", |
| 524 | conf->power_level); |
| 525 | |
| 526 | mutex_lock(&wl->mutex); |
| 527 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 528 | ret = wl1251_ps_elp_wakeup(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 529 | if (ret < 0) |
| 530 | goto out; |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 531 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 532 | if (channel != wl->channel) { |
| 533 | /* FIXME: use beacon interval provided by mac80211 */ |
Juuso Oikarinen | 77cc9e4 | 2009-06-12 14:16:52 +0300 | [diff] [blame] | 534 | ret = wl->chip.op_cmd_join(wl, wl->bss_type, 1, 100, 0); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 535 | if (ret < 0) |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 536 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 537 | |
| 538 | wl->channel = channel; |
| 539 | } |
| 540 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 541 | ret = wl1251_build_null_data(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 542 | if (ret < 0) |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 543 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 544 | |
| 545 | if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 546 | wl1251_info("psm enabled"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 547 | |
| 548 | wl->psm_requested = true; |
| 549 | |
| 550 | /* |
| 551 | * We enter PSM only if we're already associated. |
| 552 | * If we're not, we'll enter it when joining an SSID, |
| 553 | * through the bss_info_changed() hook. |
| 554 | */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 555 | ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 556 | } else if (!(conf->flags & IEEE80211_CONF_PS) && |
| 557 | wl->psm_requested) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 558 | wl1251_info("psm disabled"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 559 | |
| 560 | wl->psm_requested = false; |
| 561 | |
| 562 | if (wl->psm) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 563 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 564 | } |
| 565 | |
| 566 | if (conf->power_level != wl->power_level) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 567 | ret = wl1251_acx_tx_power(wl, conf->power_level); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 568 | if (ret < 0) |
| 569 | goto out; |
| 570 | |
| 571 | wl->power_level = conf->power_level; |
| 572 | } |
| 573 | |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 574 | out_sleep: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 575 | wl1251_ps_elp_sleep(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 576 | |
| 577 | out: |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 578 | mutex_unlock(&wl->mutex); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 579 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 580 | return ret; |
| 581 | } |
| 582 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 583 | #define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 584 | FIF_ALLMULTI | \ |
| 585 | FIF_FCSFAIL | \ |
| 586 | FIF_BCN_PRBRESP_PROMISC | \ |
| 587 | FIF_CONTROL | \ |
| 588 | FIF_OTHER_BSS) |
| 589 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 590 | static void wl1251_op_configure_filter(struct ieee80211_hw *hw, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 591 | unsigned int changed, |
| 592 | unsigned int *total, |
| 593 | int mc_count, |
| 594 | struct dev_addr_list *mc_list) |
| 595 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 596 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 597 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 598 | wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 599 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 600 | *total &= WL1251_SUPPORTED_FILTERS; |
| 601 | changed &= WL1251_SUPPORTED_FILTERS; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 602 | |
| 603 | if (changed == 0) |
| 604 | /* no filters which we support changed */ |
| 605 | return; |
| 606 | |
| 607 | /* FIXME: wl->rx_config and wl->rx_filter are not protected */ |
| 608 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 609 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
| 610 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 611 | |
| 612 | if (*total & FIF_PROMISC_IN_BSS) { |
| 613 | wl->rx_config |= CFG_BSSID_FILTER_EN; |
| 614 | wl->rx_config |= CFG_RX_ALL_GOOD; |
| 615 | } |
| 616 | if (*total & FIF_ALLMULTI) |
| 617 | /* |
| 618 | * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive |
| 619 | * all multicast frames |
| 620 | */ |
| 621 | wl->rx_config &= ~CFG_MC_FILTER_EN; |
| 622 | if (*total & FIF_FCSFAIL) |
| 623 | wl->rx_filter |= CFG_RX_FCS_ERROR; |
| 624 | if (*total & FIF_BCN_PRBRESP_PROMISC) { |
| 625 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; |
| 626 | wl->rx_config &= ~CFG_SSID_FILTER_EN; |
| 627 | } |
| 628 | if (*total & FIF_CONTROL) |
| 629 | wl->rx_filter |= CFG_RX_CTL_EN; |
| 630 | if (*total & FIF_OTHER_BSS) |
| 631 | wl->rx_filter &= ~CFG_BSSID_FILTER_EN; |
| 632 | |
| 633 | /* |
| 634 | * FIXME: workqueues need to be properly cancelled on stop(), for |
| 635 | * now let's just disable changing the filter settings. They will |
| 636 | * be updated any on config(). |
| 637 | */ |
| 638 | /* schedule_work(&wl->filter_work); */ |
| 639 | } |
| 640 | |
| 641 | /* HW encryption */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 642 | static int wl1251_set_key_type(struct wl1251 *wl, |
| 643 | struct wl1251_cmd_set_keys *key, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 644 | enum set_key_cmd cmd, |
| 645 | struct ieee80211_key_conf *mac80211_key, |
| 646 | const u8 *addr) |
| 647 | { |
| 648 | switch (mac80211_key->alg) { |
| 649 | case ALG_WEP: |
| 650 | if (is_broadcast_ether_addr(addr)) |
| 651 | key->key_type = KEY_WEP_DEFAULT; |
| 652 | else |
| 653 | key->key_type = KEY_WEP_ADDR; |
| 654 | |
| 655 | mac80211_key->hw_key_idx = mac80211_key->keyidx; |
| 656 | break; |
| 657 | case ALG_TKIP: |
| 658 | if (is_broadcast_ether_addr(addr)) |
| 659 | key->key_type = KEY_TKIP_MIC_GROUP; |
| 660 | else |
| 661 | key->key_type = KEY_TKIP_MIC_PAIRWISE; |
| 662 | |
| 663 | mac80211_key->hw_key_idx = mac80211_key->keyidx; |
| 664 | break; |
| 665 | case ALG_CCMP: |
| 666 | if (is_broadcast_ether_addr(addr)) |
| 667 | key->key_type = KEY_AES_GROUP; |
| 668 | else |
| 669 | key->key_type = KEY_AES_PAIRWISE; |
| 670 | mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 671 | break; |
| 672 | default: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 673 | wl1251_error("Unknown key algo 0x%x", mac80211_key->alg); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 674 | return -EOPNOTSUPP; |
| 675 | } |
| 676 | |
| 677 | return 0; |
| 678 | } |
| 679 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 680 | static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 681 | struct ieee80211_vif *vif, |
| 682 | struct ieee80211_sta *sta, |
| 683 | struct ieee80211_key_conf *key) |
| 684 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 685 | struct wl1251 *wl = hw->priv; |
| 686 | struct wl1251_cmd_set_keys *wl_cmd; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 687 | const u8 *addr; |
| 688 | int ret; |
| 689 | |
| 690 | static const u8 bcast_addr[ETH_ALEN] = |
| 691 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
| 692 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 693 | wl1251_debug(DEBUG_MAC80211, "mac80211 set key"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 694 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 695 | wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL); |
| 696 | if (!wl_cmd) { |
| 697 | ret = -ENOMEM; |
| 698 | goto out; |
| 699 | } |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 700 | |
| 701 | addr = sta ? sta->addr : bcast_addr; |
| 702 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 703 | wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); |
| 704 | wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); |
| 705 | wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 706 | key->alg, key->keyidx, key->keylen, key->flags); |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 707 | wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 708 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 709 | if (is_zero_ether_addr(addr)) { |
| 710 | /* We dont support TX only encryption */ |
| 711 | ret = -EOPNOTSUPP; |
| 712 | goto out; |
| 713 | } |
| 714 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 715 | mutex_lock(&wl->mutex); |
| 716 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 717 | ret = wl1251_ps_elp_wakeup(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 718 | if (ret < 0) |
| 719 | goto out_unlock; |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 720 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 721 | switch (cmd) { |
| 722 | case SET_KEY: |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 723 | wl_cmd->key_action = KEY_ADD_OR_REPLACE; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 724 | break; |
| 725 | case DISABLE_KEY: |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 726 | wl_cmd->key_action = KEY_REMOVE; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 727 | break; |
| 728 | default: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 729 | wl1251_error("Unsupported key cmd 0x%x", cmd); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 730 | break; |
| 731 | } |
| 732 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 733 | ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 734 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 735 | wl1251_error("Set KEY type failed"); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 736 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 737 | } |
| 738 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 739 | if (wl_cmd->key_type != KEY_WEP_DEFAULT) |
| 740 | memcpy(wl_cmd->addr, addr, ETH_ALEN); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 741 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 742 | if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) || |
| 743 | (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) { |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 744 | /* |
| 745 | * We get the key in the following form: |
| 746 | * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) |
| 747 | * but the target is expecting: |
| 748 | * TKIP - RX MIC - TX MIC |
| 749 | */ |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 750 | memcpy(wl_cmd->key, key->key, 16); |
| 751 | memcpy(wl_cmd->key + 16, key->key + 24, 8); |
| 752 | memcpy(wl_cmd->key + 24, key->key + 16, 8); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 753 | |
| 754 | } else { |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 755 | memcpy(wl_cmd->key, key->key, key->keylen); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 756 | } |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 757 | wl_cmd->key_size = key->keylen; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 758 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 759 | wl_cmd->id = key->keyidx; |
| 760 | wl_cmd->ssid_profile = 0; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 761 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 762 | wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd)); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 763 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 764 | ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd)); |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 765 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 766 | wl1251_warning("could not set keys"); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 767 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 768 | } |
| 769 | |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 770 | out_sleep: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 771 | wl1251_ps_elp_sleep(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 772 | |
| 773 | out_unlock: |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 774 | mutex_unlock(&wl->mutex); |
| 775 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 776 | out: |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 777 | kfree(wl_cmd); |
| 778 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 779 | return ret; |
| 780 | } |
| 781 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 782 | static int wl1251_build_basic_rates(char *rates) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 783 | { |
| 784 | u8 index = 0; |
| 785 | |
| 786 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; |
| 787 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; |
| 788 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB; |
| 789 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB; |
| 790 | |
| 791 | return index; |
| 792 | } |
| 793 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 794 | static int wl1251_build_extended_rates(char *rates) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 795 | { |
| 796 | u8 index = 0; |
| 797 | |
| 798 | rates[index++] = IEEE80211_OFDM_RATE_6MB; |
| 799 | rates[index++] = IEEE80211_OFDM_RATE_9MB; |
| 800 | rates[index++] = IEEE80211_OFDM_RATE_12MB; |
| 801 | rates[index++] = IEEE80211_OFDM_RATE_18MB; |
| 802 | rates[index++] = IEEE80211_OFDM_RATE_24MB; |
| 803 | rates[index++] = IEEE80211_OFDM_RATE_36MB; |
| 804 | rates[index++] = IEEE80211_OFDM_RATE_48MB; |
| 805 | rates[index++] = IEEE80211_OFDM_RATE_54MB; |
| 806 | |
| 807 | return index; |
| 808 | } |
| 809 | |
| 810 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 811 | static int wl1251_build_probe_req(struct wl1251 *wl, u8 *ssid, size_t ssid_len) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 812 | { |
| 813 | struct wl12xx_probe_req_template template; |
| 814 | struct wl12xx_ie_rates *rates; |
| 815 | char *ptr; |
| 816 | u16 size; |
| 817 | |
| 818 | ptr = (char *)&template; |
| 819 | size = sizeof(struct ieee80211_header); |
| 820 | |
| 821 | memset(template.header.da, 0xff, ETH_ALEN); |
| 822 | memset(template.header.bssid, 0xff, ETH_ALEN); |
| 823 | memcpy(template.header.sa, wl->mac_addr, ETH_ALEN); |
| 824 | template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); |
| 825 | |
| 826 | /* IEs */ |
| 827 | /* SSID */ |
| 828 | template.ssid.header.id = WLAN_EID_SSID; |
| 829 | template.ssid.header.len = ssid_len; |
| 830 | if (ssid_len && ssid) |
| 831 | memcpy(template.ssid.ssid, ssid, ssid_len); |
| 832 | size += sizeof(struct wl12xx_ie_header) + ssid_len; |
| 833 | ptr += size; |
| 834 | |
| 835 | /* Basic Rates */ |
| 836 | rates = (struct wl12xx_ie_rates *)ptr; |
| 837 | rates->header.id = WLAN_EID_SUPP_RATES; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 838 | rates->header.len = wl1251_build_basic_rates(rates->rates); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 839 | size += sizeof(struct wl12xx_ie_header) + rates->header.len; |
| 840 | ptr += sizeof(struct wl12xx_ie_header) + rates->header.len; |
| 841 | |
| 842 | /* Extended rates */ |
| 843 | rates = (struct wl12xx_ie_rates *)ptr; |
| 844 | rates->header.id = WLAN_EID_EXT_SUPP_RATES; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 845 | rates->header.len = wl1251_build_extended_rates(rates->rates); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 846 | size += sizeof(struct wl12xx_ie_header) + rates->header.len; |
| 847 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 848 | wl1251_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 849 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 850 | return wl1251_cmd_template_set(wl, CMD_PROBE_REQ, &template, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 851 | size); |
| 852 | } |
| 853 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 854 | static int wl1251_hw_scan(struct wl1251 *wl, u8 *ssid, size_t len, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 855 | u8 active_scan, u8 high_prio, u8 num_channels, |
| 856 | u8 probe_requests) |
| 857 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 858 | struct wl1251_cmd_trigger_scan_to *trigger = NULL; |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 859 | struct cmd_scan *params = NULL; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 860 | int i, ret; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 861 | u16 scan_options = 0; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 862 | |
| 863 | if (wl->scanning) |
| 864 | return -EINVAL; |
| 865 | |
| 866 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
| 867 | if (!params) |
| 868 | return -ENOMEM; |
| 869 | |
| 870 | params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD); |
| 871 | params->params.rx_filter_options = |
| 872 | cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN); |
| 873 | |
| 874 | /* High priority scan */ |
| 875 | if (!active_scan) |
| 876 | scan_options |= SCAN_PASSIVE; |
| 877 | if (high_prio) |
| 878 | scan_options |= SCAN_PRIORITY_HIGH; |
| 879 | params->params.scan_options = scan_options; |
| 880 | |
| 881 | params->params.num_channels = num_channels; |
| 882 | params->params.num_probe_requests = probe_requests; |
| 883 | params->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */ |
| 884 | params->params.tid_trigger = 0; |
| 885 | |
| 886 | for (i = 0; i < num_channels; i++) { |
| 887 | params->channels[i].min_duration = cpu_to_le32(30000); |
| 888 | params->channels[i].max_duration = cpu_to_le32(60000); |
| 889 | memset(¶ms->channels[i].bssid_lsb, 0xff, 4); |
| 890 | memset(¶ms->channels[i].bssid_msb, 0xff, 2); |
| 891 | params->channels[i].early_termination = 0; |
| 892 | params->channels[i].tx_power_att = 0; |
| 893 | params->channels[i].channel = i + 1; |
| 894 | memset(params->channels[i].pad, 0, 3); |
| 895 | } |
| 896 | |
| 897 | for (i = num_channels; i < SCAN_MAX_NUM_OF_CHANNELS; i++) |
| 898 | memset(¶ms->channels[i], 0, |
| 899 | sizeof(struct basic_scan_channel_parameters)); |
| 900 | |
| 901 | if (len && ssid) { |
| 902 | params->params.ssid_len = len; |
| 903 | memcpy(params->params.ssid, ssid, len); |
| 904 | } else { |
| 905 | params->params.ssid_len = 0; |
| 906 | memset(params->params.ssid, 0, 32); |
| 907 | } |
| 908 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 909 | ret = wl1251_build_probe_req(wl, ssid, len); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 910 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 911 | wl1251_error("PROBE request template failed"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 912 | goto out; |
| 913 | } |
| 914 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 915 | trigger = kzalloc(sizeof(*trigger), GFP_KERNEL); |
| 916 | if (!trigger) |
| 917 | goto out; |
| 918 | |
| 919 | trigger->timeout = 0; |
| 920 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 921 | ret = wl1251_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger, |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 922 | sizeof(*trigger)); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 923 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 924 | wl1251_error("trigger scan to failed for hw scan"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 925 | goto out; |
| 926 | } |
| 927 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 928 | wl1251_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params)); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 929 | |
| 930 | wl->scanning = true; |
| 931 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 932 | ret = wl1251_cmd_send(wl, CMD_SCAN, params, sizeof(*params)); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 933 | if (ret < 0) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 934 | wl1251_error("SCAN failed"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 935 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 936 | wl1251_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params)); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 937 | |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 938 | if (params->header.status != CMD_STATUS_SUCCESS) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 939 | wl1251_error("TEST command answer error: %d", |
Kalle Valo | ff25839 | 2009-06-12 14:14:19 +0300 | [diff] [blame] | 940 | params->header.status); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 941 | wl->scanning = false; |
| 942 | ret = -EIO; |
| 943 | goto out; |
| 944 | } |
| 945 | |
| 946 | out: |
| 947 | kfree(params); |
| 948 | return ret; |
| 949 | |
| 950 | } |
| 951 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 952 | static int wl1251_op_hw_scan(struct ieee80211_hw *hw, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 953 | struct cfg80211_scan_request *req) |
| 954 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 955 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 956 | int ret; |
| 957 | u8 *ssid = NULL; |
| 958 | size_t ssid_len = 0; |
| 959 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 960 | wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 961 | |
| 962 | if (req->n_ssids) { |
| 963 | ssid = req->ssids[0].ssid; |
| 964 | ssid_len = req->ssids[0].ssid_len; |
| 965 | } |
| 966 | |
| 967 | mutex_lock(&wl->mutex); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 968 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 969 | ret = wl1251_ps_elp_wakeup(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 970 | if (ret < 0) |
| 971 | goto out; |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 972 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 973 | ret = wl1251_hw_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3); |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 974 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 975 | wl1251_ps_elp_sleep(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 976 | |
| 977 | out: |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 978 | mutex_unlock(&wl->mutex); |
| 979 | |
| 980 | return ret; |
| 981 | } |
| 982 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 983 | static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 984 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 985 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 986 | int ret; |
| 987 | |
Kalle Valo | cee4fd2 | 2009-06-12 14:16:20 +0300 | [diff] [blame] | 988 | mutex_lock(&wl->mutex); |
| 989 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 990 | ret = wl1251_ps_elp_wakeup(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 991 | if (ret < 0) |
| 992 | goto out; |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 993 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 994 | ret = wl1251_acx_rts_threshold(wl, (u16) value); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 995 | if (ret < 0) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 996 | wl1251_warning("wl1251_op_set_rts_threshold failed: %d", ret); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 997 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 998 | wl1251_ps_elp_sleep(wl); |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 999 | |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1000 | out: |
Kalle Valo | cee4fd2 | 2009-06-12 14:16:20 +0300 | [diff] [blame] | 1001 | mutex_unlock(&wl->mutex); |
| 1002 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1003 | return ret; |
| 1004 | } |
| 1005 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1006 | static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1007 | struct ieee80211_vif *vif, |
| 1008 | struct ieee80211_bss_conf *bss_conf, |
| 1009 | u32 changed) |
| 1010 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1011 | enum wl1251_cmd_ps_mode mode; |
| 1012 | struct wl1251 *wl = hw->priv; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1013 | struct sk_buff *beacon; |
| 1014 | int ret; |
| 1015 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1016 | wl1251_debug(DEBUG_MAC80211, "mac80211 bss info changed"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1017 | |
| 1018 | mutex_lock(&wl->mutex); |
| 1019 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1020 | ret = wl1251_ps_elp_wakeup(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1021 | if (ret < 0) |
| 1022 | goto out; |
Kalle Valo | 01d9cfb | 2009-06-12 14:16:26 +0300 | [diff] [blame] | 1023 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1024 | if (changed & BSS_CHANGED_ASSOC) { |
| 1025 | if (bss_conf->assoc) { |
| 1026 | wl->aid = bss_conf->aid; |
| 1027 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1028 | ret = wl1251_build_ps_poll(wl, wl->aid); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1029 | if (ret < 0) |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1030 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1031 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1032 | ret = wl1251_acx_aid(wl, wl->aid); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1033 | if (ret < 0) |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1034 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1035 | |
| 1036 | /* If we want to go in PSM but we're not there yet */ |
| 1037 | if (wl->psm_requested && !wl->psm) { |
| 1038 | mode = STATION_POWER_SAVE_MODE; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1039 | ret = wl1251_ps_set_mode(wl, mode); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1040 | if (ret < 0) |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1041 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1042 | } |
| 1043 | } |
| 1044 | } |
| 1045 | if (changed & BSS_CHANGED_ERP_SLOT) { |
| 1046 | if (bss_conf->use_short_slot) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1047 | ret = wl1251_acx_slot(wl, SLOT_TIME_SHORT); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1048 | else |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1049 | ret = wl1251_acx_slot(wl, SLOT_TIME_LONG); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1050 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1051 | wl1251_warning("Set slot time failed %d", ret); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1052 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
| 1057 | if (bss_conf->use_short_preamble) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1058 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1059 | else |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1060 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_LONG); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1061 | } |
| 1062 | |
| 1063 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
| 1064 | if (bss_conf->use_cts_prot) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1065 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_ENABLE); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1066 | else |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1067 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_DISABLE); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1068 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1069 | wl1251_warning("Set ctsprotect failed %d", ret); |
| 1070 | goto out; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1071 | } |
| 1072 | } |
| 1073 | |
| 1074 | if (changed & BSS_CHANGED_BSSID) { |
| 1075 | memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); |
| 1076 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1077 | ret = wl1251_build_null_data(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1078 | if (ret < 0) |
| 1079 | goto out; |
| 1080 | |
| 1081 | if (wl->bss_type != BSS_TYPE_IBSS) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1082 | ret = wl1251_cmd_join(wl, wl->bss_type, 5, 100, 1); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1083 | if (ret < 0) |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1084 | goto out_sleep; |
| 1085 | wl1251_warning("Set ctsprotect failed %d", ret); |
| 1086 | goto out_sleep; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | if (changed & BSS_CHANGED_BEACON) { |
| 1091 | beacon = ieee80211_beacon_get(hw, vif); |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1092 | ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1093 | beacon->len); |
| 1094 | |
| 1095 | if (ret < 0) { |
| 1096 | dev_kfree_skb(beacon); |
| 1097 | goto out; |
| 1098 | } |
| 1099 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1100 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1101 | beacon->len); |
| 1102 | |
| 1103 | dev_kfree_skb(beacon); |
| 1104 | |
| 1105 | if (ret < 0) |
| 1106 | goto out; |
| 1107 | |
Juuso Oikarinen | 77cc9e4 | 2009-06-12 14:16:52 +0300 | [diff] [blame] | 1108 | ret = wl->chip.op_cmd_join(wl, wl->bss_type, 1, 100, 0); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1109 | |
| 1110 | if (ret < 0) |
| 1111 | goto out; |
| 1112 | } |
| 1113 | |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1114 | out_sleep: |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1115 | wl1251_ps_elp_sleep(wl); |
Kalle Valo | c5483b7 | 2009-06-12 14:16:32 +0300 | [diff] [blame] | 1116 | |
| 1117 | out: |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1118 | mutex_unlock(&wl->mutex); |
| 1119 | } |
| 1120 | |
| 1121 | |
| 1122 | /* can't be const, mac80211 writes to this */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1123 | static struct ieee80211_rate wl1251_rates[] = { |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1124 | { .bitrate = 10, |
| 1125 | .hw_value = 0x1, |
| 1126 | .hw_value_short = 0x1, }, |
| 1127 | { .bitrate = 20, |
| 1128 | .hw_value = 0x2, |
| 1129 | .hw_value_short = 0x2, |
| 1130 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
| 1131 | { .bitrate = 55, |
| 1132 | .hw_value = 0x4, |
| 1133 | .hw_value_short = 0x4, |
| 1134 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
| 1135 | { .bitrate = 110, |
| 1136 | .hw_value = 0x20, |
| 1137 | .hw_value_short = 0x20, |
| 1138 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, |
| 1139 | { .bitrate = 60, |
| 1140 | .hw_value = 0x8, |
| 1141 | .hw_value_short = 0x8, }, |
| 1142 | { .bitrate = 90, |
| 1143 | .hw_value = 0x10, |
| 1144 | .hw_value_short = 0x10, }, |
| 1145 | { .bitrate = 120, |
| 1146 | .hw_value = 0x40, |
| 1147 | .hw_value_short = 0x40, }, |
| 1148 | { .bitrate = 180, |
| 1149 | .hw_value = 0x80, |
| 1150 | .hw_value_short = 0x80, }, |
| 1151 | { .bitrate = 240, |
| 1152 | .hw_value = 0x200, |
| 1153 | .hw_value_short = 0x200, }, |
| 1154 | { .bitrate = 360, |
| 1155 | .hw_value = 0x400, |
| 1156 | .hw_value_short = 0x400, }, |
| 1157 | { .bitrate = 480, |
| 1158 | .hw_value = 0x800, |
| 1159 | .hw_value_short = 0x800, }, |
| 1160 | { .bitrate = 540, |
| 1161 | .hw_value = 0x1000, |
| 1162 | .hw_value_short = 0x1000, }, |
| 1163 | }; |
| 1164 | |
| 1165 | /* can't be const, mac80211 writes to this */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1166 | static struct ieee80211_channel wl1251_channels[] = { |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1167 | { .hw_value = 1, .center_freq = 2412}, |
| 1168 | { .hw_value = 2, .center_freq = 2417}, |
| 1169 | { .hw_value = 3, .center_freq = 2422}, |
| 1170 | { .hw_value = 4, .center_freq = 2427}, |
| 1171 | { .hw_value = 5, .center_freq = 2432}, |
| 1172 | { .hw_value = 6, .center_freq = 2437}, |
| 1173 | { .hw_value = 7, .center_freq = 2442}, |
| 1174 | { .hw_value = 8, .center_freq = 2447}, |
| 1175 | { .hw_value = 9, .center_freq = 2452}, |
| 1176 | { .hw_value = 10, .center_freq = 2457}, |
| 1177 | { .hw_value = 11, .center_freq = 2462}, |
| 1178 | { .hw_value = 12, .center_freq = 2467}, |
| 1179 | { .hw_value = 13, .center_freq = 2472}, |
| 1180 | }; |
| 1181 | |
| 1182 | /* can't be const, mac80211 writes to this */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1183 | static struct ieee80211_supported_band wl1251_band_2ghz = { |
| 1184 | .channels = wl1251_channels, |
| 1185 | .n_channels = ARRAY_SIZE(wl1251_channels), |
| 1186 | .bitrates = wl1251_rates, |
| 1187 | .n_bitrates = ARRAY_SIZE(wl1251_rates), |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1188 | }; |
| 1189 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1190 | static const struct ieee80211_ops wl1251_ops = { |
| 1191 | .start = wl1251_op_start, |
| 1192 | .stop = wl1251_op_stop, |
| 1193 | .add_interface = wl1251_op_add_interface, |
| 1194 | .remove_interface = wl1251_op_remove_interface, |
| 1195 | .config = wl1251_op_config, |
| 1196 | .configure_filter = wl1251_op_configure_filter, |
| 1197 | .tx = wl1251_op_tx, |
| 1198 | .set_key = wl1251_op_set_key, |
| 1199 | .hw_scan = wl1251_op_hw_scan, |
| 1200 | .bss_info_changed = wl1251_op_bss_info_changed, |
| 1201 | .set_rts_threshold = wl1251_op_set_rts_threshold, |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1202 | }; |
| 1203 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1204 | static int wl1251_register_hw(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1205 | { |
| 1206 | int ret; |
| 1207 | |
| 1208 | if (wl->mac80211_registered) |
| 1209 | return 0; |
| 1210 | |
| 1211 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); |
| 1212 | |
| 1213 | ret = ieee80211_register_hw(wl->hw); |
| 1214 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1215 | wl1251_error("unable to register mac80211 hw: %d", ret); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1216 | return ret; |
| 1217 | } |
| 1218 | |
| 1219 | wl->mac80211_registered = true; |
| 1220 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1221 | wl1251_notice("loaded"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1222 | |
| 1223 | return 0; |
| 1224 | } |
| 1225 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1226 | static int wl1251_init_ieee80211(struct wl1251 *wl) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1227 | { |
| 1228 | /* The tx descriptor buffer and the TKIP space */ |
| 1229 | wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) |
Juuso Oikarinen | 9f2ad4f | 2009-06-12 14:15:54 +0300 | [diff] [blame] | 1230 | + WL1251_TKIP_IV_SPACE; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1231 | |
| 1232 | /* unit us */ |
| 1233 | /* FIXME: find a proper value */ |
| 1234 | wl->hw->channel_change_time = 10000; |
| 1235 | |
| 1236 | wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| 1237 | IEEE80211_HW_NOISE_DBM; |
| 1238 | |
| 1239 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
| 1240 | wl->hw->wiphy->max_scan_ssids = 1; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1241 | wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1242 | |
| 1243 | SET_IEEE80211_DEV(wl->hw, &wl->spi->dev); |
| 1244 | |
| 1245 | return 0; |
| 1246 | } |
| 1247 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1248 | #define WL1251_DEFAULT_CHANNEL 1 |
| 1249 | static int __devinit wl1251_probe(struct spi_device *spi) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1250 | { |
| 1251 | struct wl12xx_platform_data *pdata; |
| 1252 | struct ieee80211_hw *hw; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1253 | struct wl1251 *wl; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1254 | int ret, i; |
| 1255 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; |
| 1256 | |
| 1257 | pdata = spi->dev.platform_data; |
| 1258 | if (!pdata) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1259 | wl1251_error("no platform data"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1260 | return -ENODEV; |
| 1261 | } |
| 1262 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1263 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1264 | if (!hw) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1265 | wl1251_error("could not alloc ieee80211_hw"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1266 | return -ENOMEM; |
| 1267 | } |
| 1268 | |
| 1269 | wl = hw->priv; |
| 1270 | memset(wl, 0, sizeof(*wl)); |
| 1271 | |
| 1272 | wl->hw = hw; |
| 1273 | dev_set_drvdata(&spi->dev, wl); |
| 1274 | wl->spi = spi; |
| 1275 | |
| 1276 | wl->data_in_count = 0; |
| 1277 | |
| 1278 | skb_queue_head_init(&wl->tx_queue); |
| 1279 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1280 | INIT_WORK(&wl->filter_work, wl1251_filter_work); |
| 1281 | wl->channel = WL1251_DEFAULT_CHANNEL; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1282 | wl->scanning = false; |
| 1283 | wl->default_key = 0; |
| 1284 | wl->listen_int = 1; |
| 1285 | wl->rx_counter = 0; |
| 1286 | wl->rx_handled = 0; |
| 1287 | wl->rx_current_buffer = 0; |
| 1288 | wl->rx_last_id = 0; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1289 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
| 1290 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1291 | wl->elp = false; |
| 1292 | wl->psm = 0; |
| 1293 | wl->psm_requested = false; |
| 1294 | wl->tx_queue_stopped = false; |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1295 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1296 | |
| 1297 | /* We use the default power on sleep time until we know which chip |
| 1298 | * we're using */ |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1299 | wl->chip.power_on_sleep = WL1251_DEFAULT_POWER_ON_SLEEP; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1300 | |
| 1301 | for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) |
| 1302 | wl->tx_frames[i] = NULL; |
| 1303 | |
| 1304 | wl->next_tx_complete = 0; |
| 1305 | |
| 1306 | /* |
| 1307 | * In case our MAC address is not correctly set, |
| 1308 | * we use a random but Nokia MAC. |
| 1309 | */ |
| 1310 | memcpy(wl->mac_addr, nokia_oui, 3); |
| 1311 | get_random_bytes(wl->mac_addr + 3, 3); |
| 1312 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1313 | wl->state = WL1251_STATE_OFF; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1314 | mutex_init(&wl->mutex); |
| 1315 | |
| 1316 | wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; |
| 1317 | wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; |
| 1318 | |
Kalle Valo | 4721213 | 2009-06-12 14:15:08 +0300 | [diff] [blame] | 1319 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); |
| 1320 | if (!wl->rx_descriptor) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1321 | wl1251_error("could not allocate memory for rx descriptor"); |
Kalle Valo | 4721213 | 2009-06-12 14:15:08 +0300 | [diff] [blame] | 1322 | ret = -ENOMEM; |
| 1323 | goto out_free; |
| 1324 | } |
| 1325 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1326 | /* This is the only SPI value that we need to set here, the rest |
| 1327 | * comes from the board-peripherals file */ |
| 1328 | spi->bits_per_word = 32; |
| 1329 | |
| 1330 | ret = spi_setup(spi); |
| 1331 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1332 | wl1251_error("spi_setup failed"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1333 | goto out_free; |
| 1334 | } |
| 1335 | |
| 1336 | wl->set_power = pdata->set_power; |
| 1337 | if (!wl->set_power) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1338 | wl1251_error("set power function missing in platform data"); |
Kalle Valo | c4f5c85 | 2009-06-12 14:14:34 +0300 | [diff] [blame] | 1339 | ret = -ENODEV; |
| 1340 | goto out_free; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1341 | } |
| 1342 | |
| 1343 | wl->irq = spi->irq; |
| 1344 | if (wl->irq < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1345 | wl1251_error("irq missing in platform data"); |
Kalle Valo | c4f5c85 | 2009-06-12 14:14:34 +0300 | [diff] [blame] | 1346 | ret = -ENODEV; |
| 1347 | goto out_free; |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1348 | } |
| 1349 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1350 | ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1351 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1352 | wl1251_error("request_irq() failed: %d", ret); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1353 | goto out_free; |
| 1354 | } |
| 1355 | |
| 1356 | set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING); |
| 1357 | |
| 1358 | disable_irq(wl->irq); |
| 1359 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1360 | ret = wl1251_init_ieee80211(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1361 | if (ret) |
| 1362 | goto out_irq; |
| 1363 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1364 | ret = wl1251_register_hw(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1365 | if (ret) |
| 1366 | goto out_irq; |
| 1367 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1368 | wl1251_debugfs_init(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1369 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1370 | wl1251_notice("initialized"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1371 | |
| 1372 | return 0; |
| 1373 | |
| 1374 | out_irq: |
| 1375 | free_irq(wl->irq, wl); |
| 1376 | |
| 1377 | out_free: |
Kalle Valo | 4721213 | 2009-06-12 14:15:08 +0300 | [diff] [blame] | 1378 | kfree(wl->rx_descriptor); |
| 1379 | wl->rx_descriptor = NULL; |
| 1380 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1381 | ieee80211_free_hw(hw); |
| 1382 | |
| 1383 | return ret; |
| 1384 | } |
| 1385 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1386 | static int __devexit wl1251_remove(struct spi_device *spi) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1387 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1388 | struct wl1251 *wl = dev_get_drvdata(&spi->dev); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1389 | |
| 1390 | ieee80211_unregister_hw(wl->hw); |
| 1391 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1392 | wl1251_debugfs_exit(wl); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1393 | |
| 1394 | free_irq(wl->irq, wl); |
| 1395 | kfree(wl->target_mem_map); |
| 1396 | kfree(wl->data_path); |
| 1397 | kfree(wl->fw); |
| 1398 | wl->fw = NULL; |
| 1399 | kfree(wl->nvs); |
| 1400 | wl->nvs = NULL; |
Kalle Valo | 4721213 | 2009-06-12 14:15:08 +0300 | [diff] [blame] | 1401 | |
| 1402 | kfree(wl->rx_descriptor); |
| 1403 | wl->rx_descriptor = NULL; |
| 1404 | |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1405 | ieee80211_free_hw(wl->hw); |
| 1406 | |
| 1407 | return 0; |
| 1408 | } |
| 1409 | |
| 1410 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1411 | static struct spi_driver wl1251_spi_driver = { |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1412 | .driver = { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1413 | /* FIXME: use wl12xx name to not break the user space */ |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1414 | .name = "wl12xx", |
| 1415 | .bus = &spi_bus_type, |
| 1416 | .owner = THIS_MODULE, |
| 1417 | }, |
| 1418 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1419 | .probe = wl1251_probe, |
| 1420 | .remove = __devexit_p(wl1251_remove), |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1421 | }; |
| 1422 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1423 | static int __init wl1251_init(void) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1424 | { |
| 1425 | int ret; |
| 1426 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1427 | ret = spi_register_driver(&wl1251_spi_driver); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1428 | if (ret < 0) { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1429 | wl1251_error("failed to register spi driver: %d", ret); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1430 | goto out; |
| 1431 | } |
| 1432 | |
| 1433 | out: |
| 1434 | return ret; |
| 1435 | } |
| 1436 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1437 | static void __exit wl1251_exit(void) |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1438 | { |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1439 | spi_unregister_driver(&wl1251_spi_driver); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1440 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1441 | wl1251_notice("unloaded"); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1442 | } |
| 1443 | |
Kalle Valo | 80301cd | 2009-06-12 14:17:39 +0300 | [diff] [blame^] | 1444 | module_init(wl1251_init); |
| 1445 | module_exit(wl1251_exit); |
Kalle Valo | 2f01a1f | 2009-04-29 23:33:31 +0300 | [diff] [blame] | 1446 | |
| 1447 | MODULE_LICENSE("GPL"); |
| 1448 | MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>, " |
| 1449 | "Luciano Coelho <luciano.coelho@nokia.com>"); |