| 1 | /** |
| 2 | * This file contains the major functions in WLAN |
| 3 | * driver. It includes init, exit, open, close and main |
| 4 | * thread etc.. |
| 5 | */ |
| 6 | |
| 7 | #include <linux/moduleparam.h> |
| 8 | #include <linux/delay.h> |
| 9 | #include <linux/etherdevice.h> |
| 10 | #include <linux/netdevice.h> |
| 11 | #include <linux/if_arp.h> |
| 12 | #include <linux/kthread.h> |
| 13 | #include <linux/kfifo.h> |
| 14 | #include <linux/stddef.h> |
| 15 | #include <linux/ieee80211.h> |
| 16 | #include <net/iw_handler.h> |
| 17 | |
| 18 | #include "host.h" |
| 19 | #include "decl.h" |
| 20 | #include "dev.h" |
| 21 | #include "wext.h" |
| 22 | #include "debugfs.h" |
| 23 | #include "scan.h" |
| 24 | #include "assoc.h" |
| 25 | #include "cmd.h" |
| 26 | |
| 27 | #define DRIVER_RELEASE_VERSION "323.p0" |
| 28 | const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION |
| 29 | #ifdef DEBUG |
| 30 | "-dbg" |
| 31 | #endif |
| 32 | ""; |
| 33 | |
| 34 | |
| 35 | /* Module parameters */ |
| 36 | unsigned int lbs_debug; |
| 37 | EXPORT_SYMBOL_GPL(lbs_debug); |
| 38 | module_param_named(libertas_debug, lbs_debug, int, 0644); |
| 39 | |
| 40 | |
| 41 | /* This global structure is used to send the confirm_sleep command as |
| 42 | * fast as possible down to the firmware. */ |
| 43 | struct cmd_confirm_sleep confirm_sleep; |
| 44 | |
| 45 | |
| 46 | #define LBS_TX_PWR_DEFAULT 20 /*100mW */ |
| 47 | #define LBS_TX_PWR_US_DEFAULT 20 /*100mW */ |
| 48 | #define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */ |
| 49 | #define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */ |
| 50 | #define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */ |
| 51 | |
| 52 | /* Format { channel, frequency (MHz), maxtxpower } */ |
| 53 | /* band: 'B/G', region: USA FCC/Canada IC */ |
| 54 | static struct chan_freq_power channel_freq_power_US_BG[] = { |
| 55 | {1, 2412, LBS_TX_PWR_US_DEFAULT}, |
| 56 | {2, 2417, LBS_TX_PWR_US_DEFAULT}, |
| 57 | {3, 2422, LBS_TX_PWR_US_DEFAULT}, |
| 58 | {4, 2427, LBS_TX_PWR_US_DEFAULT}, |
| 59 | {5, 2432, LBS_TX_PWR_US_DEFAULT}, |
| 60 | {6, 2437, LBS_TX_PWR_US_DEFAULT}, |
| 61 | {7, 2442, LBS_TX_PWR_US_DEFAULT}, |
| 62 | {8, 2447, LBS_TX_PWR_US_DEFAULT}, |
| 63 | {9, 2452, LBS_TX_PWR_US_DEFAULT}, |
| 64 | {10, 2457, LBS_TX_PWR_US_DEFAULT}, |
| 65 | {11, 2462, LBS_TX_PWR_US_DEFAULT} |
| 66 | }; |
| 67 | |
| 68 | /* band: 'B/G', region: Europe ETSI */ |
| 69 | static struct chan_freq_power channel_freq_power_EU_BG[] = { |
| 70 | {1, 2412, LBS_TX_PWR_EMEA_DEFAULT}, |
| 71 | {2, 2417, LBS_TX_PWR_EMEA_DEFAULT}, |
| 72 | {3, 2422, LBS_TX_PWR_EMEA_DEFAULT}, |
| 73 | {4, 2427, LBS_TX_PWR_EMEA_DEFAULT}, |
| 74 | {5, 2432, LBS_TX_PWR_EMEA_DEFAULT}, |
| 75 | {6, 2437, LBS_TX_PWR_EMEA_DEFAULT}, |
| 76 | {7, 2442, LBS_TX_PWR_EMEA_DEFAULT}, |
| 77 | {8, 2447, LBS_TX_PWR_EMEA_DEFAULT}, |
| 78 | {9, 2452, LBS_TX_PWR_EMEA_DEFAULT}, |
| 79 | {10, 2457, LBS_TX_PWR_EMEA_DEFAULT}, |
| 80 | {11, 2462, LBS_TX_PWR_EMEA_DEFAULT}, |
| 81 | {12, 2467, LBS_TX_PWR_EMEA_DEFAULT}, |
| 82 | {13, 2472, LBS_TX_PWR_EMEA_DEFAULT} |
| 83 | }; |
| 84 | |
| 85 | /* band: 'B/G', region: Spain */ |
| 86 | static struct chan_freq_power channel_freq_power_SPN_BG[] = { |
| 87 | {10, 2457, LBS_TX_PWR_DEFAULT}, |
| 88 | {11, 2462, LBS_TX_PWR_DEFAULT} |
| 89 | }; |
| 90 | |
| 91 | /* band: 'B/G', region: France */ |
| 92 | static struct chan_freq_power channel_freq_power_FR_BG[] = { |
| 93 | {10, 2457, LBS_TX_PWR_FR_DEFAULT}, |
| 94 | {11, 2462, LBS_TX_PWR_FR_DEFAULT}, |
| 95 | {12, 2467, LBS_TX_PWR_FR_DEFAULT}, |
| 96 | {13, 2472, LBS_TX_PWR_FR_DEFAULT} |
| 97 | }; |
| 98 | |
| 99 | /* band: 'B/G', region: Japan */ |
| 100 | static struct chan_freq_power channel_freq_power_JPN_BG[] = { |
| 101 | {1, 2412, LBS_TX_PWR_JP_DEFAULT}, |
| 102 | {2, 2417, LBS_TX_PWR_JP_DEFAULT}, |
| 103 | {3, 2422, LBS_TX_PWR_JP_DEFAULT}, |
| 104 | {4, 2427, LBS_TX_PWR_JP_DEFAULT}, |
| 105 | {5, 2432, LBS_TX_PWR_JP_DEFAULT}, |
| 106 | {6, 2437, LBS_TX_PWR_JP_DEFAULT}, |
| 107 | {7, 2442, LBS_TX_PWR_JP_DEFAULT}, |
| 108 | {8, 2447, LBS_TX_PWR_JP_DEFAULT}, |
| 109 | {9, 2452, LBS_TX_PWR_JP_DEFAULT}, |
| 110 | {10, 2457, LBS_TX_PWR_JP_DEFAULT}, |
| 111 | {11, 2462, LBS_TX_PWR_JP_DEFAULT}, |
| 112 | {12, 2467, LBS_TX_PWR_JP_DEFAULT}, |
| 113 | {13, 2472, LBS_TX_PWR_JP_DEFAULT}, |
| 114 | {14, 2484, LBS_TX_PWR_JP_DEFAULT} |
| 115 | }; |
| 116 | |
| 117 | /** |
| 118 | * the structure for channel, frequency and power |
| 119 | */ |
| 120 | struct region_cfp_table { |
| 121 | u8 region; |
| 122 | struct chan_freq_power *cfp_BG; |
| 123 | int cfp_no_BG; |
| 124 | }; |
| 125 | |
| 126 | /** |
| 127 | * the structure for the mapping between region and CFP |
| 128 | */ |
| 129 | static struct region_cfp_table region_cfp_table[] = { |
| 130 | {0x10, /*US FCC */ |
| 131 | channel_freq_power_US_BG, |
| 132 | ARRAY_SIZE(channel_freq_power_US_BG), |
| 133 | } |
| 134 | , |
| 135 | {0x20, /*CANADA IC */ |
| 136 | channel_freq_power_US_BG, |
| 137 | ARRAY_SIZE(channel_freq_power_US_BG), |
| 138 | } |
| 139 | , |
| 140 | {0x30, /*EU*/ channel_freq_power_EU_BG, |
| 141 | ARRAY_SIZE(channel_freq_power_EU_BG), |
| 142 | } |
| 143 | , |
| 144 | {0x31, /*SPAIN*/ channel_freq_power_SPN_BG, |
| 145 | ARRAY_SIZE(channel_freq_power_SPN_BG), |
| 146 | } |
| 147 | , |
| 148 | {0x32, /*FRANCE*/ channel_freq_power_FR_BG, |
| 149 | ARRAY_SIZE(channel_freq_power_FR_BG), |
| 150 | } |
| 151 | , |
| 152 | {0x40, /*JAPAN*/ channel_freq_power_JPN_BG, |
| 153 | ARRAY_SIZE(channel_freq_power_JPN_BG), |
| 154 | } |
| 155 | , |
| 156 | /*Add new region here */ |
| 157 | }; |
| 158 | |
| 159 | /** |
| 160 | * the table to keep region code |
| 161 | */ |
| 162 | u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] = |
| 163 | { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 }; |
| 164 | |
| 165 | /** |
| 166 | * 802.11b/g supported bitrates (in 500Kb/s units) |
| 167 | */ |
| 168 | u8 lbs_bg_rates[MAX_RATES] = |
| 169 | { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c, |
| 170 | 0x00, 0x00 }; |
| 171 | |
| 172 | /** |
| 173 | * FW rate table. FW refers to rates by their index in this table, not by the |
| 174 | * rate value itself. Values of 0x00 are |
| 175 | * reserved positions. |
| 176 | */ |
| 177 | static u8 fw_data_rates[MAX_RATES] = |
| 178 | { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12, |
| 179 | 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00 |
| 180 | }; |
| 181 | |
| 182 | /** |
| 183 | * @brief use index to get the data rate |
| 184 | * |
| 185 | * @param idx The index of data rate |
| 186 | * @return data rate or 0 |
| 187 | */ |
| 188 | u32 lbs_fw_index_to_data_rate(u8 idx) |
| 189 | { |
| 190 | if (idx >= sizeof(fw_data_rates)) |
| 191 | idx = 0; |
| 192 | return fw_data_rates[idx]; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * @brief use rate to get the index |
| 197 | * |
| 198 | * @param rate data rate |
| 199 | * @return index or 0 |
| 200 | */ |
| 201 | u8 lbs_data_rate_to_fw_index(u32 rate) |
| 202 | { |
| 203 | u8 i; |
| 204 | |
| 205 | if (!rate) |
| 206 | return 0; |
| 207 | |
| 208 | for (i = 0; i < sizeof(fw_data_rates); i++) { |
| 209 | if (rate == fw_data_rates[i]) |
| 210 | return i; |
| 211 | } |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * Attributes exported through sysfs |
| 217 | */ |
| 218 | |
| 219 | /** |
| 220 | * @brief Get function for sysfs attribute anycast_mask |
| 221 | */ |
| 222 | static ssize_t lbs_anycast_get(struct device *dev, |
| 223 | struct device_attribute *attr, char * buf) |
| 224 | { |
| 225 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 226 | struct cmd_ds_mesh_access mesh_access; |
| 227 | int ret; |
| 228 | |
| 229 | memset(&mesh_access, 0, sizeof(mesh_access)); |
| 230 | |
| 231 | ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access); |
| 232 | if (ret) |
| 233 | return ret; |
| 234 | |
| 235 | return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0])); |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * @brief Set function for sysfs attribute anycast_mask |
| 240 | */ |
| 241 | static ssize_t lbs_anycast_set(struct device *dev, |
| 242 | struct device_attribute *attr, const char * buf, size_t count) |
| 243 | { |
| 244 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 245 | struct cmd_ds_mesh_access mesh_access; |
| 246 | uint32_t datum; |
| 247 | int ret; |
| 248 | |
| 249 | memset(&mesh_access, 0, sizeof(mesh_access)); |
| 250 | sscanf(buf, "%x", &datum); |
| 251 | mesh_access.data[0] = cpu_to_le32(datum); |
| 252 | |
| 253 | ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access); |
| 254 | if (ret) |
| 255 | return ret; |
| 256 | |
| 257 | return strlen(buf); |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * @brief Get function for sysfs attribute prb_rsp_limit |
| 262 | */ |
| 263 | static ssize_t lbs_prb_rsp_limit_get(struct device *dev, |
| 264 | struct device_attribute *attr, char *buf) |
| 265 | { |
| 266 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 267 | struct cmd_ds_mesh_access mesh_access; |
| 268 | int ret; |
| 269 | u32 retry_limit; |
| 270 | |
| 271 | memset(&mesh_access, 0, sizeof(mesh_access)); |
| 272 | mesh_access.data[0] = cpu_to_le32(CMD_ACT_GET); |
| 273 | |
| 274 | ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT, |
| 275 | &mesh_access); |
| 276 | if (ret) |
| 277 | return ret; |
| 278 | |
| 279 | retry_limit = le32_to_cpu(mesh_access.data[1]); |
| 280 | return snprintf(buf, 10, "%d\n", retry_limit); |
| 281 | } |
| 282 | |
| 283 | /** |
| 284 | * @brief Set function for sysfs attribute prb_rsp_limit |
| 285 | */ |
| 286 | static ssize_t lbs_prb_rsp_limit_set(struct device *dev, |
| 287 | struct device_attribute *attr, const char *buf, size_t count) |
| 288 | { |
| 289 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 290 | struct cmd_ds_mesh_access mesh_access; |
| 291 | int ret; |
| 292 | unsigned long retry_limit; |
| 293 | |
| 294 | memset(&mesh_access, 0, sizeof(mesh_access)); |
| 295 | mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET); |
| 296 | |
| 297 | if (!strict_strtoul(buf, 10, &retry_limit)) |
| 298 | return -ENOTSUPP; |
| 299 | if (retry_limit > 15) |
| 300 | return -ENOTSUPP; |
| 301 | |
| 302 | mesh_access.data[1] = cpu_to_le32(retry_limit); |
| 303 | |
| 304 | ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT, |
| 305 | &mesh_access); |
| 306 | if (ret) |
| 307 | return ret; |
| 308 | |
| 309 | return strlen(buf); |
| 310 | } |
| 311 | |
| 312 | static int lbs_add_rtap(struct lbs_private *priv); |
| 313 | static void lbs_remove_rtap(struct lbs_private *priv); |
| 314 | static int lbs_add_mesh(struct lbs_private *priv); |
| 315 | static void lbs_remove_mesh(struct lbs_private *priv); |
| 316 | |
| 317 | |
| 318 | /** |
| 319 | * Get function for sysfs attribute rtap |
| 320 | */ |
| 321 | static ssize_t lbs_rtap_get(struct device *dev, |
| 322 | struct device_attribute *attr, char * buf) |
| 323 | { |
| 324 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 325 | return snprintf(buf, 5, "0x%X\n", priv->monitormode); |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * Set function for sysfs attribute rtap |
| 330 | */ |
| 331 | static ssize_t lbs_rtap_set(struct device *dev, |
| 332 | struct device_attribute *attr, const char * buf, size_t count) |
| 333 | { |
| 334 | int monitor_mode; |
| 335 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 336 | |
| 337 | sscanf(buf, "%x", &monitor_mode); |
| 338 | if (monitor_mode) { |
| 339 | if (priv->monitormode == monitor_mode) |
| 340 | return strlen(buf); |
| 341 | if (!priv->monitormode) { |
| 342 | if (priv->infra_open || priv->mesh_open) |
| 343 | return -EBUSY; |
| 344 | if (priv->mode == IW_MODE_INFRA) |
| 345 | lbs_cmd_80211_deauthenticate(priv, |
| 346 | priv->curbssparams.bssid, |
| 347 | WLAN_REASON_DEAUTH_LEAVING); |
| 348 | else if (priv->mode == IW_MODE_ADHOC) |
| 349 | lbs_adhoc_stop(priv); |
| 350 | lbs_add_rtap(priv); |
| 351 | } |
| 352 | priv->monitormode = monitor_mode; |
| 353 | } else { |
| 354 | if (!priv->monitormode) |
| 355 | return strlen(buf); |
| 356 | priv->monitormode = 0; |
| 357 | lbs_remove_rtap(priv); |
| 358 | |
| 359 | if (priv->currenttxskb) { |
| 360 | dev_kfree_skb_any(priv->currenttxskb); |
| 361 | priv->currenttxskb = NULL; |
| 362 | } |
| 363 | |
| 364 | /* Wake queues, command thread, etc. */ |
| 365 | lbs_host_to_card_done(priv); |
| 366 | } |
| 367 | |
| 368 | lbs_prepare_and_send_command(priv, |
| 369 | CMD_802_11_MONITOR_MODE, CMD_ACT_SET, |
| 370 | CMD_OPTION_WAITFORRSP, 0, &priv->monitormode); |
| 371 | return strlen(buf); |
| 372 | } |
| 373 | |
| 374 | /** |
| 375 | * lbs_rtap attribute to be exported per ethX interface |
| 376 | * through sysfs (/sys/class/net/ethX/lbs_rtap) |
| 377 | */ |
| 378 | static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set ); |
| 379 | |
| 380 | /** |
| 381 | * Get function for sysfs attribute mesh |
| 382 | */ |
| 383 | static ssize_t lbs_mesh_get(struct device *dev, |
| 384 | struct device_attribute *attr, char * buf) |
| 385 | { |
| 386 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 387 | return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev); |
| 388 | } |
| 389 | |
| 390 | /** |
| 391 | * Set function for sysfs attribute mesh |
| 392 | */ |
| 393 | static ssize_t lbs_mesh_set(struct device *dev, |
| 394 | struct device_attribute *attr, const char * buf, size_t count) |
| 395 | { |
| 396 | struct lbs_private *priv = netdev_priv(to_net_dev(dev)); |
| 397 | int enable; |
| 398 | int ret, action = CMD_ACT_MESH_CONFIG_STOP; |
| 399 | |
| 400 | sscanf(buf, "%x", &enable); |
| 401 | enable = !!enable; |
| 402 | if (enable == !!priv->mesh_dev) |
| 403 | return count; |
| 404 | if (enable) |
| 405 | action = CMD_ACT_MESH_CONFIG_START; |
| 406 | ret = lbs_mesh_config(priv, action, priv->curbssparams.channel); |
| 407 | if (ret) |
| 408 | return ret; |
| 409 | |
| 410 | if (enable) |
| 411 | lbs_add_mesh(priv); |
| 412 | else |
| 413 | lbs_remove_mesh(priv); |
| 414 | |
| 415 | return count; |
| 416 | } |
| 417 | |
| 418 | /** |
| 419 | * lbs_mesh attribute to be exported per ethX interface |
| 420 | * through sysfs (/sys/class/net/ethX/lbs_mesh) |
| 421 | */ |
| 422 | static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set); |
| 423 | |
| 424 | /** |
| 425 | * anycast_mask attribute to be exported per mshX interface |
| 426 | * through sysfs (/sys/class/net/mshX/anycast_mask) |
| 427 | */ |
| 428 | static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set); |
| 429 | |
| 430 | /** |
| 431 | * prb_rsp_limit attribute to be exported per mshX interface |
| 432 | * through sysfs (/sys/class/net/mshX/prb_rsp_limit) |
| 433 | */ |
| 434 | static DEVICE_ATTR(prb_rsp_limit, 0644, lbs_prb_rsp_limit_get, |
| 435 | lbs_prb_rsp_limit_set); |
| 436 | |
| 437 | static struct attribute *lbs_mesh_sysfs_entries[] = { |
| 438 | &dev_attr_anycast_mask.attr, |
| 439 | &dev_attr_prb_rsp_limit.attr, |
| 440 | NULL, |
| 441 | }; |
| 442 | |
| 443 | static struct attribute_group lbs_mesh_attr_group = { |
| 444 | .attrs = lbs_mesh_sysfs_entries, |
| 445 | }; |
| 446 | |
| 447 | /** |
| 448 | * @brief This function opens the ethX or mshX interface |
| 449 | * |
| 450 | * @param dev A pointer to net_device structure |
| 451 | * @return 0 or -EBUSY if monitor mode active |
| 452 | */ |
| 453 | static int lbs_dev_open(struct net_device *dev) |
| 454 | { |
| 455 | struct lbs_private *priv = netdev_priv(dev) ; |
| 456 | int ret = 0; |
| 457 | |
| 458 | lbs_deb_enter(LBS_DEB_NET); |
| 459 | |
| 460 | spin_lock_irq(&priv->driver_lock); |
| 461 | |
| 462 | if (priv->monitormode) { |
| 463 | ret = -EBUSY; |
| 464 | goto out; |
| 465 | } |
| 466 | |
| 467 | if (dev == priv->mesh_dev) { |
| 468 | priv->mesh_open = 1; |
| 469 | priv->mesh_connect_status = LBS_CONNECTED; |
| 470 | netif_carrier_on(dev); |
| 471 | } else { |
| 472 | priv->infra_open = 1; |
| 473 | |
| 474 | if (priv->connect_status == LBS_CONNECTED) |
| 475 | netif_carrier_on(dev); |
| 476 | else |
| 477 | netif_carrier_off(dev); |
| 478 | } |
| 479 | |
| 480 | if (!priv->tx_pending_len) |
| 481 | netif_wake_queue(dev); |
| 482 | out: |
| 483 | |
| 484 | spin_unlock_irq(&priv->driver_lock); |
| 485 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
| 486 | return ret; |
| 487 | } |
| 488 | |
| 489 | /** |
| 490 | * @brief This function closes the mshX interface |
| 491 | * |
| 492 | * @param dev A pointer to net_device structure |
| 493 | * @return 0 |
| 494 | */ |
| 495 | static int lbs_mesh_stop(struct net_device *dev) |
| 496 | { |
| 497 | struct lbs_private *priv = dev->ml_priv; |
| 498 | |
| 499 | lbs_deb_enter(LBS_DEB_MESH); |
| 500 | spin_lock_irq(&priv->driver_lock); |
| 501 | |
| 502 | priv->mesh_open = 0; |
| 503 | priv->mesh_connect_status = LBS_DISCONNECTED; |
| 504 | |
| 505 | netif_stop_queue(dev); |
| 506 | netif_carrier_off(dev); |
| 507 | |
| 508 | spin_unlock_irq(&priv->driver_lock); |
| 509 | |
| 510 | schedule_work(&priv->mcast_work); |
| 511 | |
| 512 | lbs_deb_leave(LBS_DEB_MESH); |
| 513 | return 0; |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * @brief This function closes the ethX interface |
| 518 | * |
| 519 | * @param dev A pointer to net_device structure |
| 520 | * @return 0 |
| 521 | */ |
| 522 | static int lbs_eth_stop(struct net_device *dev) |
| 523 | { |
| 524 | struct lbs_private *priv = netdev_priv(dev); |
| 525 | |
| 526 | lbs_deb_enter(LBS_DEB_NET); |
| 527 | |
| 528 | spin_lock_irq(&priv->driver_lock); |
| 529 | priv->infra_open = 0; |
| 530 | netif_stop_queue(dev); |
| 531 | spin_unlock_irq(&priv->driver_lock); |
| 532 | |
| 533 | schedule_work(&priv->mcast_work); |
| 534 | |
| 535 | lbs_deb_leave(LBS_DEB_NET); |
| 536 | return 0; |
| 537 | } |
| 538 | |
| 539 | static void lbs_tx_timeout(struct net_device *dev) |
| 540 | { |
| 541 | struct lbs_private *priv = netdev_priv(dev); |
| 542 | |
| 543 | lbs_deb_enter(LBS_DEB_TX); |
| 544 | |
| 545 | lbs_pr_err("tx watch dog timeout\n"); |
| 546 | |
| 547 | dev->trans_start = jiffies; |
| 548 | |
| 549 | if (priv->currenttxskb) |
| 550 | lbs_send_tx_feedback(priv, 0); |
| 551 | |
| 552 | /* XX: Shouldn't we also call into the hw-specific driver |
| 553 | to kick it somehow? */ |
| 554 | lbs_host_to_card_done(priv); |
| 555 | |
| 556 | /* More often than not, this actually happens because the |
| 557 | firmware has crapped itself -- rather than just a very |
| 558 | busy medium. So send a harmless command, and if/when |
| 559 | _that_ times out, we'll kick it in the head. */ |
| 560 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, |
| 561 | 0, 0, NULL); |
| 562 | |
| 563 | lbs_deb_leave(LBS_DEB_TX); |
| 564 | } |
| 565 | |
| 566 | void lbs_host_to_card_done(struct lbs_private *priv) |
| 567 | { |
| 568 | unsigned long flags; |
| 569 | |
| 570 | lbs_deb_enter(LBS_DEB_THREAD); |
| 571 | |
| 572 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 573 | |
| 574 | priv->dnld_sent = DNLD_RES_RECEIVED; |
| 575 | |
| 576 | /* Wake main thread if commands are pending */ |
| 577 | if (!priv->cur_cmd || priv->tx_pending_len > 0) |
| 578 | wake_up_interruptible(&priv->waitq); |
| 579 | |
| 580 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 581 | lbs_deb_leave(LBS_DEB_THREAD); |
| 582 | } |
| 583 | EXPORT_SYMBOL_GPL(lbs_host_to_card_done); |
| 584 | |
| 585 | /** |
| 586 | * @brief This function returns the network statistics |
| 587 | * |
| 588 | * @param dev A pointer to struct lbs_private structure |
| 589 | * @return A pointer to net_device_stats structure |
| 590 | */ |
| 591 | static struct net_device_stats *lbs_get_stats(struct net_device *dev) |
| 592 | { |
| 593 | struct lbs_private *priv = netdev_priv(dev); |
| 594 | |
| 595 | lbs_deb_enter(LBS_DEB_NET); |
| 596 | return &priv->stats; |
| 597 | } |
| 598 | |
| 599 | static int lbs_set_mac_address(struct net_device *dev, void *addr) |
| 600 | { |
| 601 | int ret = 0; |
| 602 | struct lbs_private *priv = netdev_priv(dev); |
| 603 | struct sockaddr *phwaddr = addr; |
| 604 | struct cmd_ds_802_11_mac_address cmd; |
| 605 | |
| 606 | lbs_deb_enter(LBS_DEB_NET); |
| 607 | |
| 608 | /* In case it was called from the mesh device */ |
| 609 | dev = priv->dev; |
| 610 | |
| 611 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 612 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 613 | memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN); |
| 614 | |
| 615 | ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd); |
| 616 | if (ret) { |
| 617 | lbs_deb_net("set MAC address failed\n"); |
| 618 | goto done; |
| 619 | } |
| 620 | |
| 621 | memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN); |
| 622 | memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
| 623 | if (priv->mesh_dev) |
| 624 | memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN); |
| 625 | |
| 626 | done: |
| 627 | lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret); |
| 628 | return ret; |
| 629 | } |
| 630 | |
| 631 | |
| 632 | static inline int mac_in_list(unsigned char *list, int list_len, |
| 633 | unsigned char *mac) |
| 634 | { |
| 635 | while (list_len) { |
| 636 | if (!memcmp(list, mac, ETH_ALEN)) |
| 637 | return 1; |
| 638 | list += ETH_ALEN; |
| 639 | list_len--; |
| 640 | } |
| 641 | return 0; |
| 642 | } |
| 643 | |
| 644 | |
| 645 | static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd, |
| 646 | struct net_device *dev, int nr_addrs) |
| 647 | { |
| 648 | int i = nr_addrs; |
| 649 | struct dev_mc_list *mc_list; |
| 650 | |
| 651 | if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST)) |
| 652 | return nr_addrs; |
| 653 | |
| 654 | netif_addr_lock_bh(dev); |
| 655 | for (mc_list = dev->mc_list; mc_list; mc_list = mc_list->next) { |
| 656 | if (mac_in_list(cmd->maclist, nr_addrs, mc_list->dmi_addr)) { |
| 657 | lbs_deb_net("mcast address %s:%pM skipped\n", dev->name, |
| 658 | mc_list->dmi_addr); |
| 659 | continue; |
| 660 | } |
| 661 | |
| 662 | if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE) |
| 663 | break; |
| 664 | memcpy(&cmd->maclist[6*i], mc_list->dmi_addr, ETH_ALEN); |
| 665 | lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name, |
| 666 | mc_list->dmi_addr); |
| 667 | i++; |
| 668 | } |
| 669 | netif_addr_unlock_bh(dev); |
| 670 | if (mc_list) |
| 671 | return -EOVERFLOW; |
| 672 | |
| 673 | return i; |
| 674 | } |
| 675 | |
| 676 | static void lbs_set_mcast_worker(struct work_struct *work) |
| 677 | { |
| 678 | struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work); |
| 679 | struct cmd_ds_mac_multicast_adr mcast_cmd; |
| 680 | int dev_flags; |
| 681 | int nr_addrs; |
| 682 | int old_mac_control = priv->mac_control; |
| 683 | |
| 684 | lbs_deb_enter(LBS_DEB_NET); |
| 685 | |
| 686 | dev_flags = priv->dev->flags; |
| 687 | if (priv->mesh_dev) |
| 688 | dev_flags |= priv->mesh_dev->flags; |
| 689 | |
| 690 | if (dev_flags & IFF_PROMISC) { |
| 691 | priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE; |
| 692 | priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE | |
| 693 | CMD_ACT_MAC_MULTICAST_ENABLE); |
| 694 | goto out_set_mac_control; |
| 695 | } else if (dev_flags & IFF_ALLMULTI) { |
| 696 | do_allmulti: |
| 697 | priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; |
| 698 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | |
| 699 | CMD_ACT_MAC_MULTICAST_ENABLE); |
| 700 | goto out_set_mac_control; |
| 701 | } |
| 702 | |
| 703 | /* Once for priv->dev, again for priv->mesh_dev if it exists */ |
| 704 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0); |
| 705 | if (nr_addrs >= 0 && priv->mesh_dev) |
| 706 | nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs); |
| 707 | if (nr_addrs < 0) |
| 708 | goto do_allmulti; |
| 709 | |
| 710 | if (nr_addrs) { |
| 711 | int size = offsetof(struct cmd_ds_mac_multicast_adr, |
| 712 | maclist[6*nr_addrs]); |
| 713 | |
| 714 | mcast_cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 715 | mcast_cmd.hdr.size = cpu_to_le16(size); |
| 716 | mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs); |
| 717 | |
| 718 | lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size); |
| 719 | |
| 720 | priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; |
| 721 | } else |
| 722 | priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; |
| 723 | |
| 724 | priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE | |
| 725 | CMD_ACT_MAC_ALL_MULTICAST_ENABLE); |
| 726 | out_set_mac_control: |
| 727 | if (priv->mac_control != old_mac_control) |
| 728 | lbs_set_mac_control(priv); |
| 729 | |
| 730 | lbs_deb_leave(LBS_DEB_NET); |
| 731 | } |
| 732 | |
| 733 | static void lbs_set_multicast_list(struct net_device *dev) |
| 734 | { |
| 735 | struct lbs_private *priv = netdev_priv(dev); |
| 736 | |
| 737 | schedule_work(&priv->mcast_work); |
| 738 | } |
| 739 | |
| 740 | /** |
| 741 | * @brief This function handles the major jobs in the LBS driver. |
| 742 | * It handles all events generated by firmware, RX data received |
| 743 | * from firmware and TX data sent from kernel. |
| 744 | * |
| 745 | * @param data A pointer to lbs_thread structure |
| 746 | * @return 0 |
| 747 | */ |
| 748 | static int lbs_thread(void *data) |
| 749 | { |
| 750 | struct net_device *dev = data; |
| 751 | struct lbs_private *priv = netdev_priv(dev); |
| 752 | wait_queue_t wait; |
| 753 | |
| 754 | lbs_deb_enter(LBS_DEB_THREAD); |
| 755 | |
| 756 | init_waitqueue_entry(&wait, current); |
| 757 | |
| 758 | for (;;) { |
| 759 | int shouldsleep; |
| 760 | u8 resp_idx; |
| 761 | |
| 762 | lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n", |
| 763 | priv->currenttxskb, priv->dnld_sent); |
| 764 | |
| 765 | add_wait_queue(&priv->waitq, &wait); |
| 766 | set_current_state(TASK_INTERRUPTIBLE); |
| 767 | spin_lock_irq(&priv->driver_lock); |
| 768 | |
| 769 | if (kthread_should_stop()) |
| 770 | shouldsleep = 0; /* Bye */ |
| 771 | else if (priv->surpriseremoved) |
| 772 | shouldsleep = 1; /* We need to wait until we're _told_ to die */ |
| 773 | else if (priv->psstate == PS_STATE_SLEEP) |
| 774 | shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ |
| 775 | else if (priv->cmd_timed_out) |
| 776 | shouldsleep = 0; /* Command timed out. Recover */ |
| 777 | else if (!priv->fw_ready) |
| 778 | shouldsleep = 1; /* Firmware not ready. We're waiting for it */ |
| 779 | else if (priv->dnld_sent) |
| 780 | shouldsleep = 1; /* Something is en route to the device already */ |
| 781 | else if (priv->tx_pending_len > 0) |
| 782 | shouldsleep = 0; /* We've a packet to send */ |
| 783 | else if (priv->resp_len[priv->resp_idx]) |
| 784 | shouldsleep = 0; /* We have a command response */ |
| 785 | else if (priv->cur_cmd) |
| 786 | shouldsleep = 1; /* Can't send a command; one already running */ |
| 787 | else if (!list_empty(&priv->cmdpendingq)) |
| 788 | shouldsleep = 0; /* We have a command to send */ |
| 789 | else if (__kfifo_len(priv->event_fifo)) |
| 790 | shouldsleep = 0; /* We have an event to process */ |
| 791 | else |
| 792 | shouldsleep = 1; /* No command */ |
| 793 | |
| 794 | if (shouldsleep) { |
| 795 | lbs_deb_thread("sleeping, connect_status %d, " |
| 796 | "psmode %d, psstate %d\n", |
| 797 | priv->connect_status, |
| 798 | priv->psmode, priv->psstate); |
| 799 | spin_unlock_irq(&priv->driver_lock); |
| 800 | schedule(); |
| 801 | } else |
| 802 | spin_unlock_irq(&priv->driver_lock); |
| 803 | |
| 804 | lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n", |
| 805 | priv->currenttxskb, priv->dnld_sent); |
| 806 | |
| 807 | set_current_state(TASK_RUNNING); |
| 808 | remove_wait_queue(&priv->waitq, &wait); |
| 809 | |
| 810 | lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n", |
| 811 | priv->currenttxskb, priv->dnld_sent); |
| 812 | |
| 813 | if (kthread_should_stop()) { |
| 814 | lbs_deb_thread("break from main thread\n"); |
| 815 | break; |
| 816 | } |
| 817 | |
| 818 | if (priv->surpriseremoved) { |
| 819 | lbs_deb_thread("adapter removed; waiting to die...\n"); |
| 820 | continue; |
| 821 | } |
| 822 | |
| 823 | lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n", |
| 824 | priv->currenttxskb, priv->dnld_sent); |
| 825 | |
| 826 | /* Process any pending command response */ |
| 827 | spin_lock_irq(&priv->driver_lock); |
| 828 | resp_idx = priv->resp_idx; |
| 829 | if (priv->resp_len[resp_idx]) { |
| 830 | spin_unlock_irq(&priv->driver_lock); |
| 831 | lbs_process_command_response(priv, |
| 832 | priv->resp_buf[resp_idx], |
| 833 | priv->resp_len[resp_idx]); |
| 834 | spin_lock_irq(&priv->driver_lock); |
| 835 | priv->resp_len[resp_idx] = 0; |
| 836 | } |
| 837 | spin_unlock_irq(&priv->driver_lock); |
| 838 | |
| 839 | /* command timeout stuff */ |
| 840 | if (priv->cmd_timed_out && priv->cur_cmd) { |
| 841 | struct cmd_ctrl_node *cmdnode = priv->cur_cmd; |
| 842 | |
| 843 | if (++priv->nr_retries > 3) { |
| 844 | lbs_pr_info("Excessive timeouts submitting " |
| 845 | "command 0x%04x\n", |
| 846 | le16_to_cpu(cmdnode->cmdbuf->command)); |
| 847 | lbs_complete_command(priv, cmdnode, -ETIMEDOUT); |
| 848 | priv->nr_retries = 0; |
| 849 | if (priv->reset_card) |
| 850 | priv->reset_card(priv); |
| 851 | } else { |
| 852 | priv->cur_cmd = NULL; |
| 853 | priv->dnld_sent = DNLD_RES_RECEIVED; |
| 854 | lbs_pr_info("requeueing command 0x%04x due " |
| 855 | "to timeout (#%d)\n", |
| 856 | le16_to_cpu(cmdnode->cmdbuf->command), |
| 857 | priv->nr_retries); |
| 858 | |
| 859 | /* Stick it back at the _top_ of the pending queue |
| 860 | for immediate resubmission */ |
| 861 | list_add(&cmdnode->list, &priv->cmdpendingq); |
| 862 | } |
| 863 | } |
| 864 | priv->cmd_timed_out = 0; |
| 865 | |
| 866 | /* Process hardware events, e.g. card removed, link lost */ |
| 867 | spin_lock_irq(&priv->driver_lock); |
| 868 | while (__kfifo_len(priv->event_fifo)) { |
| 869 | u32 event; |
| 870 | |
| 871 | __kfifo_get(priv->event_fifo, (unsigned char *) &event, |
| 872 | sizeof(event)); |
| 873 | spin_unlock_irq(&priv->driver_lock); |
| 874 | lbs_process_event(priv, event); |
| 875 | spin_lock_irq(&priv->driver_lock); |
| 876 | } |
| 877 | spin_unlock_irq(&priv->driver_lock); |
| 878 | |
| 879 | if (!priv->fw_ready) |
| 880 | continue; |
| 881 | |
| 882 | /* Check if we need to confirm Sleep Request received previously */ |
| 883 | if (priv->psstate == PS_STATE_PRE_SLEEP && |
| 884 | !priv->dnld_sent && !priv->cur_cmd) { |
| 885 | if (priv->connect_status == LBS_CONNECTED) { |
| 886 | lbs_deb_thread("pre-sleep, currenttxskb %p, " |
| 887 | "dnld_sent %d, cur_cmd %p\n", |
| 888 | priv->currenttxskb, priv->dnld_sent, |
| 889 | priv->cur_cmd); |
| 890 | |
| 891 | lbs_ps_confirm_sleep(priv); |
| 892 | } else { |
| 893 | /* workaround for firmware sending |
| 894 | * deauth/linkloss event immediately |
| 895 | * after sleep request; remove this |
| 896 | * after firmware fixes it |
| 897 | */ |
| 898 | priv->psstate = PS_STATE_AWAKE; |
| 899 | lbs_pr_alert("ignore PS_SleepConfirm in " |
| 900 | "non-connected state\n"); |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | /* The PS state is changed during processing of Sleep Request |
| 905 | * event above |
| 906 | */ |
| 907 | if ((priv->psstate == PS_STATE_SLEEP) || |
| 908 | (priv->psstate == PS_STATE_PRE_SLEEP)) |
| 909 | continue; |
| 910 | |
| 911 | /* Execute the next command */ |
| 912 | if (!priv->dnld_sent && !priv->cur_cmd) |
| 913 | lbs_execute_next_command(priv); |
| 914 | |
| 915 | /* Wake-up command waiters which can't sleep in |
| 916 | * lbs_prepare_and_send_command |
| 917 | */ |
| 918 | if (!list_empty(&priv->cmdpendingq)) |
| 919 | wake_up_all(&priv->cmd_pending); |
| 920 | |
| 921 | spin_lock_irq(&priv->driver_lock); |
| 922 | if (!priv->dnld_sent && priv->tx_pending_len > 0) { |
| 923 | int ret = priv->hw_host_to_card(priv, MVMS_DAT, |
| 924 | priv->tx_pending_buf, |
| 925 | priv->tx_pending_len); |
| 926 | if (ret) { |
| 927 | lbs_deb_tx("host_to_card failed %d\n", ret); |
| 928 | priv->dnld_sent = DNLD_RES_RECEIVED; |
| 929 | } |
| 930 | priv->tx_pending_len = 0; |
| 931 | if (!priv->currenttxskb) { |
| 932 | /* We can wake the queues immediately if we aren't |
| 933 | waiting for TX feedback */ |
| 934 | if (priv->connect_status == LBS_CONNECTED) |
| 935 | netif_wake_queue(priv->dev); |
| 936 | if (priv->mesh_dev && |
| 937 | priv->mesh_connect_status == LBS_CONNECTED) |
| 938 | netif_wake_queue(priv->mesh_dev); |
| 939 | } |
| 940 | } |
| 941 | spin_unlock_irq(&priv->driver_lock); |
| 942 | } |
| 943 | |
| 944 | del_timer(&priv->command_timer); |
| 945 | wake_up_all(&priv->cmd_pending); |
| 946 | |
| 947 | lbs_deb_leave(LBS_DEB_THREAD); |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy, |
| 952 | struct cmd_header *cmd) |
| 953 | { |
| 954 | lbs_deb_enter(LBS_DEB_FW); |
| 955 | |
| 956 | netif_device_detach(priv->dev); |
| 957 | if (priv->mesh_dev) |
| 958 | netif_device_detach(priv->mesh_dev); |
| 959 | |
| 960 | priv->fw_ready = 0; |
| 961 | lbs_deb_leave(LBS_DEB_FW); |
| 962 | return 0; |
| 963 | } |
| 964 | |
| 965 | int lbs_suspend(struct lbs_private *priv) |
| 966 | { |
| 967 | struct cmd_header cmd; |
| 968 | int ret; |
| 969 | |
| 970 | lbs_deb_enter(LBS_DEB_FW); |
| 971 | |
| 972 | if (priv->wol_criteria == 0xffffffff) { |
| 973 | lbs_pr_info("Suspend attempt without configuring wake params!\n"); |
| 974 | return -EINVAL; |
| 975 | } |
| 976 | |
| 977 | memset(&cmd, 0, sizeof(cmd)); |
| 978 | |
| 979 | ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd, |
| 980 | sizeof(cmd), lbs_suspend_callback, 0); |
| 981 | if (ret) |
| 982 | lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret); |
| 983 | |
| 984 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
| 985 | return ret; |
| 986 | } |
| 987 | EXPORT_SYMBOL_GPL(lbs_suspend); |
| 988 | |
| 989 | void lbs_resume(struct lbs_private *priv) |
| 990 | { |
| 991 | lbs_deb_enter(LBS_DEB_FW); |
| 992 | |
| 993 | priv->fw_ready = 1; |
| 994 | |
| 995 | /* Firmware doesn't seem to give us RX packets any more |
| 996 | until we send it some command. Might as well update */ |
| 997 | lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, |
| 998 | 0, 0, NULL); |
| 999 | |
| 1000 | netif_device_attach(priv->dev); |
| 1001 | if (priv->mesh_dev) |
| 1002 | netif_device_attach(priv->mesh_dev); |
| 1003 | |
| 1004 | lbs_deb_leave(LBS_DEB_FW); |
| 1005 | } |
| 1006 | EXPORT_SYMBOL_GPL(lbs_resume); |
| 1007 | |
| 1008 | /** |
| 1009 | * @brief This function downloads firmware image, gets |
| 1010 | * HW spec from firmware and set basic parameters to |
| 1011 | * firmware. |
| 1012 | * |
| 1013 | * @param priv A pointer to struct lbs_private structure |
| 1014 | * @return 0 or -1 |
| 1015 | */ |
| 1016 | static int lbs_setup_firmware(struct lbs_private *priv) |
| 1017 | { |
| 1018 | int ret = -1; |
| 1019 | s16 curlevel = 0, minlevel = 0, maxlevel = 0; |
| 1020 | |
| 1021 | lbs_deb_enter(LBS_DEB_FW); |
| 1022 | |
| 1023 | /* Read MAC address from firmware */ |
| 1024 | memset(priv->current_addr, 0xff, ETH_ALEN); |
| 1025 | ret = lbs_update_hw_spec(priv); |
| 1026 | if (ret) |
| 1027 | goto done; |
| 1028 | |
| 1029 | /* Read power levels if available */ |
| 1030 | ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel); |
| 1031 | if (ret == 0) { |
| 1032 | priv->txpower_cur = curlevel; |
| 1033 | priv->txpower_min = minlevel; |
| 1034 | priv->txpower_max = maxlevel; |
| 1035 | } |
| 1036 | |
| 1037 | lbs_set_mac_control(priv); |
| 1038 | done: |
| 1039 | lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret); |
| 1040 | return ret; |
| 1041 | } |
| 1042 | |
| 1043 | /** |
| 1044 | * This function handles the timeout of command sending. |
| 1045 | * It will re-send the same command again. |
| 1046 | */ |
| 1047 | static void command_timer_fn(unsigned long data) |
| 1048 | { |
| 1049 | struct lbs_private *priv = (struct lbs_private *)data; |
| 1050 | unsigned long flags; |
| 1051 | |
| 1052 | lbs_deb_enter(LBS_DEB_CMD); |
| 1053 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 1054 | |
| 1055 | if (!priv->cur_cmd) |
| 1056 | goto out; |
| 1057 | |
| 1058 | lbs_pr_info("command 0x%04x timed out\n", |
| 1059 | le16_to_cpu(priv->cur_cmd->cmdbuf->command)); |
| 1060 | |
| 1061 | priv->cmd_timed_out = 1; |
| 1062 | wake_up_interruptible(&priv->waitq); |
| 1063 | out: |
| 1064 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 1065 | lbs_deb_leave(LBS_DEB_CMD); |
| 1066 | } |
| 1067 | |
| 1068 | static void lbs_sync_channel_worker(struct work_struct *work) |
| 1069 | { |
| 1070 | struct lbs_private *priv = container_of(work, struct lbs_private, |
| 1071 | sync_channel); |
| 1072 | |
| 1073 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1074 | if (lbs_update_channel(priv)) |
| 1075 | lbs_pr_info("Channel synchronization failed."); |
| 1076 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1077 | } |
| 1078 | |
| 1079 | |
| 1080 | static int lbs_init_adapter(struct lbs_private *priv) |
| 1081 | { |
| 1082 | size_t bufsize; |
| 1083 | int i, ret = 0; |
| 1084 | |
| 1085 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1086 | |
| 1087 | /* Allocate buffer to store the BSSID list */ |
| 1088 | bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor); |
| 1089 | priv->networks = kzalloc(bufsize, GFP_KERNEL); |
| 1090 | if (!priv->networks) { |
| 1091 | lbs_pr_err("Out of memory allocating beacons\n"); |
| 1092 | ret = -1; |
| 1093 | goto out; |
| 1094 | } |
| 1095 | |
| 1096 | /* Initialize scan result lists */ |
| 1097 | INIT_LIST_HEAD(&priv->network_free_list); |
| 1098 | INIT_LIST_HEAD(&priv->network_list); |
| 1099 | for (i = 0; i < MAX_NETWORK_COUNT; i++) { |
| 1100 | list_add_tail(&priv->networks[i].list, |
| 1101 | &priv->network_free_list); |
| 1102 | } |
| 1103 | |
| 1104 | memset(priv->current_addr, 0xff, ETH_ALEN); |
| 1105 | |
| 1106 | priv->connect_status = LBS_DISCONNECTED; |
| 1107 | priv->mesh_connect_status = LBS_DISCONNECTED; |
| 1108 | priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM; |
| 1109 | priv->mode = IW_MODE_INFRA; |
| 1110 | priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL; |
| 1111 | priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; |
| 1112 | priv->radio_on = 1; |
| 1113 | priv->enablehwauto = 1; |
| 1114 | priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; |
| 1115 | priv->psmode = LBS802_11POWERMODECAM; |
| 1116 | priv->psstate = PS_STATE_FULL_POWER; |
| 1117 | |
| 1118 | mutex_init(&priv->lock); |
| 1119 | |
| 1120 | setup_timer(&priv->command_timer, command_timer_fn, |
| 1121 | (unsigned long)priv); |
| 1122 | |
| 1123 | INIT_LIST_HEAD(&priv->cmdfreeq); |
| 1124 | INIT_LIST_HEAD(&priv->cmdpendingq); |
| 1125 | |
| 1126 | spin_lock_init(&priv->driver_lock); |
| 1127 | init_waitqueue_head(&priv->cmd_pending); |
| 1128 | |
| 1129 | /* Allocate the command buffers */ |
| 1130 | if (lbs_allocate_cmd_buffer(priv)) { |
| 1131 | lbs_pr_err("Out of memory allocating command buffers\n"); |
| 1132 | ret = -ENOMEM; |
| 1133 | goto out; |
| 1134 | } |
| 1135 | priv->resp_idx = 0; |
| 1136 | priv->resp_len[0] = priv->resp_len[1] = 0; |
| 1137 | |
| 1138 | /* Create the event FIFO */ |
| 1139 | priv->event_fifo = kfifo_alloc(sizeof(u32) * 16, GFP_KERNEL, NULL); |
| 1140 | if (IS_ERR(priv->event_fifo)) { |
| 1141 | lbs_pr_err("Out of memory allocating event FIFO buffer\n"); |
| 1142 | ret = -ENOMEM; |
| 1143 | goto out; |
| 1144 | } |
| 1145 | |
| 1146 | out: |
| 1147 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
| 1148 | |
| 1149 | return ret; |
| 1150 | } |
| 1151 | |
| 1152 | static void lbs_free_adapter(struct lbs_private *priv) |
| 1153 | { |
| 1154 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1155 | |
| 1156 | lbs_free_cmd_buffer(priv); |
| 1157 | if (priv->event_fifo) |
| 1158 | kfifo_free(priv->event_fifo); |
| 1159 | del_timer(&priv->command_timer); |
| 1160 | kfree(priv->networks); |
| 1161 | priv->networks = NULL; |
| 1162 | |
| 1163 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1164 | } |
| 1165 | |
| 1166 | /** |
| 1167 | * @brief This function adds the card. it will probe the |
| 1168 | * card, allocate the lbs_priv and initialize the device. |
| 1169 | * |
| 1170 | * @param card A pointer to card |
| 1171 | * @return A pointer to struct lbs_private structure |
| 1172 | */ |
| 1173 | struct lbs_private *lbs_add_card(void *card, struct device *dmdev) |
| 1174 | { |
| 1175 | struct net_device *dev = NULL; |
| 1176 | struct lbs_private *priv = NULL; |
| 1177 | |
| 1178 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1179 | |
| 1180 | /* Allocate an Ethernet device and register it */ |
| 1181 | dev = alloc_etherdev(sizeof(struct lbs_private)); |
| 1182 | if (!dev) { |
| 1183 | lbs_pr_err("init ethX device failed\n"); |
| 1184 | goto done; |
| 1185 | } |
| 1186 | priv = netdev_priv(dev); |
| 1187 | |
| 1188 | if (lbs_init_adapter(priv)) { |
| 1189 | lbs_pr_err("failed to initialize adapter structure.\n"); |
| 1190 | goto err_init_adapter; |
| 1191 | } |
| 1192 | |
| 1193 | priv->dev = dev; |
| 1194 | priv->card = card; |
| 1195 | priv->mesh_open = 0; |
| 1196 | priv->infra_open = 0; |
| 1197 | |
| 1198 | /* Setup the OS Interface to our functions */ |
| 1199 | dev->open = lbs_dev_open; |
| 1200 | dev->hard_start_xmit = lbs_hard_start_xmit; |
| 1201 | dev->stop = lbs_eth_stop; |
| 1202 | dev->set_mac_address = lbs_set_mac_address; |
| 1203 | dev->tx_timeout = lbs_tx_timeout; |
| 1204 | dev->get_stats = lbs_get_stats; |
| 1205 | dev->watchdog_timeo = 5 * HZ; |
| 1206 | dev->ethtool_ops = &lbs_ethtool_ops; |
| 1207 | #ifdef WIRELESS_EXT |
| 1208 | dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def; |
| 1209 | #endif |
| 1210 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
| 1211 | dev->set_multicast_list = lbs_set_multicast_list; |
| 1212 | |
| 1213 | SET_NETDEV_DEV(dev, dmdev); |
| 1214 | |
| 1215 | priv->rtap_net_dev = NULL; |
| 1216 | |
| 1217 | lbs_deb_thread("Starting main thread...\n"); |
| 1218 | init_waitqueue_head(&priv->waitq); |
| 1219 | priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main"); |
| 1220 | if (IS_ERR(priv->main_thread)) { |
| 1221 | lbs_deb_thread("Error creating main thread.\n"); |
| 1222 | goto err_init_adapter; |
| 1223 | } |
| 1224 | |
| 1225 | priv->work_thread = create_singlethread_workqueue("lbs_worker"); |
| 1226 | INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker); |
| 1227 | INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); |
| 1228 | INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); |
| 1229 | INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker); |
| 1230 | |
| 1231 | sprintf(priv->mesh_ssid, "mesh"); |
| 1232 | priv->mesh_ssid_len = 4; |
| 1233 | |
| 1234 | priv->wol_criteria = 0xffffffff; |
| 1235 | priv->wol_gpio = 0xff; |
| 1236 | |
| 1237 | goto done; |
| 1238 | |
| 1239 | err_init_adapter: |
| 1240 | lbs_free_adapter(priv); |
| 1241 | free_netdev(dev); |
| 1242 | priv = NULL; |
| 1243 | |
| 1244 | done: |
| 1245 | lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv); |
| 1246 | return priv; |
| 1247 | } |
| 1248 | EXPORT_SYMBOL_GPL(lbs_add_card); |
| 1249 | |
| 1250 | |
| 1251 | void lbs_remove_card(struct lbs_private *priv) |
| 1252 | { |
| 1253 | struct net_device *dev = priv->dev; |
| 1254 | union iwreq_data wrqu; |
| 1255 | |
| 1256 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1257 | |
| 1258 | lbs_remove_mesh(priv); |
| 1259 | lbs_remove_rtap(priv); |
| 1260 | |
| 1261 | dev = priv->dev; |
| 1262 | |
| 1263 | cancel_delayed_work_sync(&priv->scan_work); |
| 1264 | cancel_delayed_work_sync(&priv->assoc_work); |
| 1265 | cancel_work_sync(&priv->mcast_work); |
| 1266 | |
| 1267 | /* worker thread destruction blocks on the in-flight command which |
| 1268 | * should have been cleared already in lbs_stop_card(). |
| 1269 | */ |
| 1270 | lbs_deb_main("destroying worker thread\n"); |
| 1271 | destroy_workqueue(priv->work_thread); |
| 1272 | lbs_deb_main("done destroying worker thread\n"); |
| 1273 | |
| 1274 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { |
| 1275 | priv->psmode = LBS802_11POWERMODECAM; |
| 1276 | lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); |
| 1277 | } |
| 1278 | |
| 1279 | memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN); |
| 1280 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 1281 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 1282 | |
| 1283 | /* Stop the thread servicing the interrupts */ |
| 1284 | priv->surpriseremoved = 1; |
| 1285 | kthread_stop(priv->main_thread); |
| 1286 | |
| 1287 | lbs_free_adapter(priv); |
| 1288 | |
| 1289 | priv->dev = NULL; |
| 1290 | free_netdev(dev); |
| 1291 | |
| 1292 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1293 | } |
| 1294 | EXPORT_SYMBOL_GPL(lbs_remove_card); |
| 1295 | |
| 1296 | |
| 1297 | int lbs_start_card(struct lbs_private *priv) |
| 1298 | { |
| 1299 | struct net_device *dev = priv->dev; |
| 1300 | int ret = -1; |
| 1301 | |
| 1302 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1303 | |
| 1304 | /* poke the firmware */ |
| 1305 | ret = lbs_setup_firmware(priv); |
| 1306 | if (ret) |
| 1307 | goto done; |
| 1308 | |
| 1309 | /* init 802.11d */ |
| 1310 | lbs_init_11d(priv); |
| 1311 | |
| 1312 | if (register_netdev(dev)) { |
| 1313 | lbs_pr_err("cannot register ethX device\n"); |
| 1314 | goto done; |
| 1315 | } |
| 1316 | |
| 1317 | lbs_update_channel(priv); |
| 1318 | |
| 1319 | /* 5.0.16p0 is known to NOT support any mesh */ |
| 1320 | if (priv->fwrelease > 0x05001000) { |
| 1321 | /* Enable mesh, if supported, and work out which TLV it uses. |
| 1322 | 0x100 + 291 is an unofficial value used in 5.110.20.pXX |
| 1323 | 0x100 + 37 is the official value used in 5.110.21.pXX |
| 1324 | but we check them in that order because 20.pXX doesn't |
| 1325 | give an error -- it just silently fails. */ |
| 1326 | |
| 1327 | /* 5.110.20.pXX firmware will fail the command if the channel |
| 1328 | doesn't match the existing channel. But only if the TLV |
| 1329 | is correct. If the channel is wrong, _BOTH_ versions will |
| 1330 | give an error to 0x100+291, and allow 0x100+37 to succeed. |
| 1331 | It's just that 5.110.20.pXX will not have done anything |
| 1332 | useful */ |
| 1333 | |
| 1334 | priv->mesh_tlv = 0x100 + 291; |
| 1335 | if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, |
| 1336 | priv->curbssparams.channel)) { |
| 1337 | priv->mesh_tlv = 0x100 + 37; |
| 1338 | if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, |
| 1339 | priv->curbssparams.channel)) |
| 1340 | priv->mesh_tlv = 0; |
| 1341 | } |
| 1342 | if (priv->mesh_tlv) { |
| 1343 | lbs_add_mesh(priv); |
| 1344 | |
| 1345 | if (device_create_file(&dev->dev, &dev_attr_lbs_mesh)) |
| 1346 | lbs_pr_err("cannot register lbs_mesh attribute\n"); |
| 1347 | |
| 1348 | /* While rtap isn't related to mesh, only mesh-enabled |
| 1349 | * firmware implements the rtap functionality via |
| 1350 | * CMD_802_11_MONITOR_MODE. |
| 1351 | */ |
| 1352 | if (device_create_file(&dev->dev, &dev_attr_lbs_rtap)) |
| 1353 | lbs_pr_err("cannot register lbs_rtap attribute\n"); |
| 1354 | } |
| 1355 | } |
| 1356 | |
| 1357 | lbs_debugfs_init_one(priv, dev); |
| 1358 | |
| 1359 | lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name); |
| 1360 | |
| 1361 | ret = 0; |
| 1362 | |
| 1363 | done: |
| 1364 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
| 1365 | return ret; |
| 1366 | } |
| 1367 | EXPORT_SYMBOL_GPL(lbs_start_card); |
| 1368 | |
| 1369 | |
| 1370 | void lbs_stop_card(struct lbs_private *priv) |
| 1371 | { |
| 1372 | struct net_device *dev; |
| 1373 | struct cmd_ctrl_node *cmdnode; |
| 1374 | unsigned long flags; |
| 1375 | |
| 1376 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1377 | |
| 1378 | if (!priv) |
| 1379 | goto out; |
| 1380 | dev = priv->dev; |
| 1381 | |
| 1382 | netif_stop_queue(dev); |
| 1383 | netif_carrier_off(dev); |
| 1384 | |
| 1385 | lbs_debugfs_remove_one(priv); |
| 1386 | if (priv->mesh_tlv) { |
| 1387 | device_remove_file(&dev->dev, &dev_attr_lbs_mesh); |
| 1388 | device_remove_file(&dev->dev, &dev_attr_lbs_rtap); |
| 1389 | } |
| 1390 | |
| 1391 | /* Delete the timeout of the currently processing command */ |
| 1392 | del_timer_sync(&priv->command_timer); |
| 1393 | |
| 1394 | /* Flush pending command nodes */ |
| 1395 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 1396 | lbs_deb_main("clearing pending commands\n"); |
| 1397 | list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { |
| 1398 | cmdnode->result = -ENOENT; |
| 1399 | cmdnode->cmdwaitqwoken = 1; |
| 1400 | wake_up_interruptible(&cmdnode->cmdwait_q); |
| 1401 | } |
| 1402 | |
| 1403 | /* Flush the command the card is currently processing */ |
| 1404 | if (priv->cur_cmd) { |
| 1405 | lbs_deb_main("clearing current command\n"); |
| 1406 | priv->cur_cmd->result = -ENOENT; |
| 1407 | priv->cur_cmd->cmdwaitqwoken = 1; |
| 1408 | wake_up_interruptible(&priv->cur_cmd->cmdwait_q); |
| 1409 | } |
| 1410 | lbs_deb_main("done clearing commands\n"); |
| 1411 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 1412 | |
| 1413 | unregister_netdev(dev); |
| 1414 | |
| 1415 | out: |
| 1416 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1417 | } |
| 1418 | EXPORT_SYMBOL_GPL(lbs_stop_card); |
| 1419 | |
| 1420 | |
| 1421 | /** |
| 1422 | * @brief This function adds mshX interface |
| 1423 | * |
| 1424 | * @param priv A pointer to the struct lbs_private structure |
| 1425 | * @return 0 if successful, -X otherwise |
| 1426 | */ |
| 1427 | static int lbs_add_mesh(struct lbs_private *priv) |
| 1428 | { |
| 1429 | struct net_device *mesh_dev = NULL; |
| 1430 | int ret = 0; |
| 1431 | |
| 1432 | lbs_deb_enter(LBS_DEB_MESH); |
| 1433 | |
| 1434 | /* Allocate a virtual mesh device */ |
| 1435 | if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) { |
| 1436 | lbs_deb_mesh("init mshX device failed\n"); |
| 1437 | ret = -ENOMEM; |
| 1438 | goto done; |
| 1439 | } |
| 1440 | mesh_dev->ml_priv = priv; |
| 1441 | priv->mesh_dev = mesh_dev; |
| 1442 | |
| 1443 | mesh_dev->open = lbs_dev_open; |
| 1444 | mesh_dev->hard_start_xmit = lbs_hard_start_xmit; |
| 1445 | mesh_dev->stop = lbs_mesh_stop; |
| 1446 | mesh_dev->get_stats = lbs_get_stats; |
| 1447 | mesh_dev->set_mac_address = lbs_set_mac_address; |
| 1448 | mesh_dev->ethtool_ops = &lbs_ethtool_ops; |
| 1449 | memcpy(mesh_dev->dev_addr, priv->dev->dev_addr, |
| 1450 | sizeof(priv->dev->dev_addr)); |
| 1451 | |
| 1452 | SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent); |
| 1453 | |
| 1454 | #ifdef WIRELESS_EXT |
| 1455 | mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def; |
| 1456 | #endif |
| 1457 | mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
| 1458 | mesh_dev->set_multicast_list = lbs_set_multicast_list; |
| 1459 | /* Register virtual mesh interface */ |
| 1460 | ret = register_netdev(mesh_dev); |
| 1461 | if (ret) { |
| 1462 | lbs_pr_err("cannot register mshX virtual interface\n"); |
| 1463 | goto err_free; |
| 1464 | } |
| 1465 | |
| 1466 | ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group); |
| 1467 | if (ret) |
| 1468 | goto err_unregister; |
| 1469 | |
| 1470 | lbs_persist_config_init(mesh_dev); |
| 1471 | |
| 1472 | /* Everything successful */ |
| 1473 | ret = 0; |
| 1474 | goto done; |
| 1475 | |
| 1476 | err_unregister: |
| 1477 | unregister_netdev(mesh_dev); |
| 1478 | |
| 1479 | err_free: |
| 1480 | free_netdev(mesh_dev); |
| 1481 | |
| 1482 | done: |
| 1483 | lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret); |
| 1484 | return ret; |
| 1485 | } |
| 1486 | |
| 1487 | static void lbs_remove_mesh(struct lbs_private *priv) |
| 1488 | { |
| 1489 | struct net_device *mesh_dev; |
| 1490 | |
| 1491 | |
| 1492 | mesh_dev = priv->mesh_dev; |
| 1493 | if (!mesh_dev) |
| 1494 | return; |
| 1495 | |
| 1496 | lbs_deb_enter(LBS_DEB_MESH); |
| 1497 | netif_stop_queue(mesh_dev); |
| 1498 | netif_carrier_off(mesh_dev); |
| 1499 | sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group); |
| 1500 | lbs_persist_config_remove(mesh_dev); |
| 1501 | unregister_netdev(mesh_dev); |
| 1502 | priv->mesh_dev = NULL; |
| 1503 | free_netdev(mesh_dev); |
| 1504 | lbs_deb_leave(LBS_DEB_MESH); |
| 1505 | } |
| 1506 | |
| 1507 | /** |
| 1508 | * @brief This function finds the CFP in |
| 1509 | * region_cfp_table based on region and band parameter. |
| 1510 | * |
| 1511 | * @param region The region code |
| 1512 | * @param band The band |
| 1513 | * @param cfp_no A pointer to CFP number |
| 1514 | * @return A pointer to CFP |
| 1515 | */ |
| 1516 | struct chan_freq_power *lbs_get_region_cfp_table(u8 region, int *cfp_no) |
| 1517 | { |
| 1518 | int i, end; |
| 1519 | |
| 1520 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1521 | |
| 1522 | end = ARRAY_SIZE(region_cfp_table); |
| 1523 | |
| 1524 | for (i = 0; i < end ; i++) { |
| 1525 | lbs_deb_main("region_cfp_table[i].region=%d\n", |
| 1526 | region_cfp_table[i].region); |
| 1527 | if (region_cfp_table[i].region == region) { |
| 1528 | *cfp_no = region_cfp_table[i].cfp_no_BG; |
| 1529 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1530 | return region_cfp_table[i].cfp_BG; |
| 1531 | } |
| 1532 | } |
| 1533 | |
| 1534 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL"); |
| 1535 | return NULL; |
| 1536 | } |
| 1537 | |
| 1538 | int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band) |
| 1539 | { |
| 1540 | int ret = 0; |
| 1541 | int i = 0; |
| 1542 | |
| 1543 | struct chan_freq_power *cfp; |
| 1544 | int cfp_no; |
| 1545 | |
| 1546 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1547 | |
| 1548 | memset(priv->region_channel, 0, sizeof(priv->region_channel)); |
| 1549 | |
| 1550 | cfp = lbs_get_region_cfp_table(region, &cfp_no); |
| 1551 | if (cfp != NULL) { |
| 1552 | priv->region_channel[i].nrcfp = cfp_no; |
| 1553 | priv->region_channel[i].CFP = cfp; |
| 1554 | } else { |
| 1555 | lbs_deb_main("wrong region code %#x in band B/G\n", |
| 1556 | region); |
| 1557 | ret = -1; |
| 1558 | goto out; |
| 1559 | } |
| 1560 | priv->region_channel[i].valid = 1; |
| 1561 | priv->region_channel[i].region = region; |
| 1562 | priv->region_channel[i].band = band; |
| 1563 | i++; |
| 1564 | out: |
| 1565 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
| 1566 | return ret; |
| 1567 | } |
| 1568 | |
| 1569 | void lbs_queue_event(struct lbs_private *priv, u32 event) |
| 1570 | { |
| 1571 | unsigned long flags; |
| 1572 | |
| 1573 | lbs_deb_enter(LBS_DEB_THREAD); |
| 1574 | spin_lock_irqsave(&priv->driver_lock, flags); |
| 1575 | |
| 1576 | if (priv->psstate == PS_STATE_SLEEP) |
| 1577 | priv->psstate = PS_STATE_AWAKE; |
| 1578 | |
| 1579 | __kfifo_put(priv->event_fifo, (unsigned char *) &event, sizeof(u32)); |
| 1580 | |
| 1581 | wake_up_interruptible(&priv->waitq); |
| 1582 | |
| 1583 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
| 1584 | lbs_deb_leave(LBS_DEB_THREAD); |
| 1585 | } |
| 1586 | EXPORT_SYMBOL_GPL(lbs_queue_event); |
| 1587 | |
| 1588 | void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx) |
| 1589 | { |
| 1590 | lbs_deb_enter(LBS_DEB_THREAD); |
| 1591 | |
| 1592 | if (priv->psstate == PS_STATE_SLEEP) |
| 1593 | priv->psstate = PS_STATE_AWAKE; |
| 1594 | |
| 1595 | /* Swap buffers by flipping the response index */ |
| 1596 | BUG_ON(resp_idx > 1); |
| 1597 | priv->resp_idx = resp_idx; |
| 1598 | |
| 1599 | wake_up_interruptible(&priv->waitq); |
| 1600 | |
| 1601 | lbs_deb_leave(LBS_DEB_THREAD); |
| 1602 | } |
| 1603 | EXPORT_SYMBOL_GPL(lbs_notify_command_response); |
| 1604 | |
| 1605 | static int __init lbs_init_module(void) |
| 1606 | { |
| 1607 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1608 | memset(&confirm_sleep, 0, sizeof(confirm_sleep)); |
| 1609 | confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE); |
| 1610 | confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep)); |
| 1611 | confirm_sleep.action = cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED); |
| 1612 | lbs_debugfs_init(); |
| 1613 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1614 | return 0; |
| 1615 | } |
| 1616 | |
| 1617 | static void __exit lbs_exit_module(void) |
| 1618 | { |
| 1619 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1620 | lbs_debugfs_remove(); |
| 1621 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1622 | } |
| 1623 | |
| 1624 | /* |
| 1625 | * rtap interface support fuctions |
| 1626 | */ |
| 1627 | |
| 1628 | static int lbs_rtap_open(struct net_device *dev) |
| 1629 | { |
| 1630 | /* Yes, _stop_ the queue. Because we don't support injection */ |
| 1631 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1632 | netif_carrier_off(dev); |
| 1633 | netif_stop_queue(dev); |
| 1634 | lbs_deb_leave(LBS_DEB_LEAVE); |
| 1635 | return 0; |
| 1636 | } |
| 1637 | |
| 1638 | static int lbs_rtap_stop(struct net_device *dev) |
| 1639 | { |
| 1640 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1641 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1642 | return 0; |
| 1643 | } |
| 1644 | |
| 1645 | static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1646 | { |
| 1647 | netif_stop_queue(dev); |
| 1648 | return NETDEV_TX_BUSY; |
| 1649 | } |
| 1650 | |
| 1651 | static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev) |
| 1652 | { |
| 1653 | struct lbs_private *priv = dev->ml_priv; |
| 1654 | lbs_deb_enter(LBS_DEB_NET); |
| 1655 | return &priv->stats; |
| 1656 | } |
| 1657 | |
| 1658 | |
| 1659 | static void lbs_remove_rtap(struct lbs_private *priv) |
| 1660 | { |
| 1661 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1662 | if (priv->rtap_net_dev == NULL) |
| 1663 | goto out; |
| 1664 | unregister_netdev(priv->rtap_net_dev); |
| 1665 | free_netdev(priv->rtap_net_dev); |
| 1666 | priv->rtap_net_dev = NULL; |
| 1667 | out: |
| 1668 | lbs_deb_leave(LBS_DEB_MAIN); |
| 1669 | } |
| 1670 | |
| 1671 | static int lbs_add_rtap(struct lbs_private *priv) |
| 1672 | { |
| 1673 | int ret = 0; |
| 1674 | struct net_device *rtap_dev; |
| 1675 | |
| 1676 | lbs_deb_enter(LBS_DEB_MAIN); |
| 1677 | if (priv->rtap_net_dev) { |
| 1678 | ret = -EPERM; |
| 1679 | goto out; |
| 1680 | } |
| 1681 | |
| 1682 | rtap_dev = alloc_netdev(0, "rtap%d", ether_setup); |
| 1683 | if (rtap_dev == NULL) { |
| 1684 | ret = -ENOMEM; |
| 1685 | goto out; |
| 1686 | } |
| 1687 | |
| 1688 | memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN); |
| 1689 | rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP; |
| 1690 | rtap_dev->open = lbs_rtap_open; |
| 1691 | rtap_dev->stop = lbs_rtap_stop; |
| 1692 | rtap_dev->get_stats = lbs_rtap_get_stats; |
| 1693 | rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit; |
| 1694 | rtap_dev->ml_priv = priv; |
| 1695 | SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent); |
| 1696 | |
| 1697 | ret = register_netdev(rtap_dev); |
| 1698 | if (ret) { |
| 1699 | free_netdev(rtap_dev); |
| 1700 | goto out; |
| 1701 | } |
| 1702 | priv->rtap_net_dev = rtap_dev; |
| 1703 | |
| 1704 | out: |
| 1705 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); |
| 1706 | return ret; |
| 1707 | } |
| 1708 | |
| 1709 | module_init(lbs_init_module); |
| 1710 | module_exit(lbs_exit_module); |
| 1711 | |
| 1712 | MODULE_DESCRIPTION("Libertas WLAN Driver Library"); |
| 1713 | MODULE_AUTHOR("Marvell International Ltd."); |
| 1714 | MODULE_LICENSE("GPL"); |