| 1 | /* |
| 2 | * NXP Wireless LAN device driver: commands and events |
| 3 | * |
| 4 | * Copyright 2011-2020 NXP |
| 5 | * |
| 6 | * This software file (the "File") is distributed by NXP |
| 7 | * under the terms of the GNU General Public License Version 2, June 1991 |
| 8 | * (the "License"). You may use, redistribute and/or modify this File in |
| 9 | * accordance with the terms and conditions of the License, a copy of which |
| 10 | * is available by writing to the Free Software Foundation, Inc., |
| 11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
| 12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
| 13 | * |
| 14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
| 16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
| 17 | * this warranty disclaimer. |
| 18 | */ |
| 19 | |
| 20 | #include <asm/unaligned.h> |
| 21 | #include "decl.h" |
| 22 | #include "ioctl.h" |
| 23 | #include "util.h" |
| 24 | #include "fw.h" |
| 25 | #include "main.h" |
| 26 | #include "wmm.h" |
| 27 | #include "11n.h" |
| 28 | |
| 29 | static void mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter); |
| 30 | |
| 31 | /* |
| 32 | * This function initializes a command node. |
| 33 | * |
| 34 | * The actual allocation of the node is not done by this function. It only |
| 35 | * initiates a node by filling it with default parameters. Similarly, |
| 36 | * allocation of the different buffers used (IOCTL buffer, data buffer) are |
| 37 | * not done by this function either. |
| 38 | */ |
| 39 | static void |
| 40 | mwifiex_init_cmd_node(struct mwifiex_private *priv, |
| 41 | struct cmd_ctrl_node *cmd_node, |
| 42 | u32 cmd_no, void *data_buf, bool sync) |
| 43 | { |
| 44 | cmd_node->priv = priv; |
| 45 | cmd_node->cmd_no = cmd_no; |
| 46 | |
| 47 | if (sync) { |
| 48 | cmd_node->wait_q_enabled = true; |
| 49 | cmd_node->cmd_wait_q_woken = false; |
| 50 | cmd_node->condition = &cmd_node->cmd_wait_q_woken; |
| 51 | } |
| 52 | cmd_node->data_buf = data_buf; |
| 53 | cmd_node->cmd_skb = cmd_node->skb; |
| 54 | } |
| 55 | |
| 56 | /* |
| 57 | * This function returns a command node from the free queue depending upon |
| 58 | * availability. |
| 59 | */ |
| 60 | static struct cmd_ctrl_node * |
| 61 | mwifiex_get_cmd_node(struct mwifiex_adapter *adapter) |
| 62 | { |
| 63 | struct cmd_ctrl_node *cmd_node; |
| 64 | |
| 65 | spin_lock_bh(&adapter->cmd_free_q_lock); |
| 66 | if (list_empty(&adapter->cmd_free_q)) { |
| 67 | mwifiex_dbg(adapter, ERROR, |
| 68 | "GET_CMD_NODE: cmd node not available\n"); |
| 69 | spin_unlock_bh(&adapter->cmd_free_q_lock); |
| 70 | return NULL; |
| 71 | } |
| 72 | cmd_node = list_first_entry(&adapter->cmd_free_q, |
| 73 | struct cmd_ctrl_node, list); |
| 74 | list_del(&cmd_node->list); |
| 75 | spin_unlock_bh(&adapter->cmd_free_q_lock); |
| 76 | |
| 77 | return cmd_node; |
| 78 | } |
| 79 | |
| 80 | /* |
| 81 | * This function cleans up a command node. |
| 82 | * |
| 83 | * The function resets the fields including the buffer pointers. |
| 84 | * This function does not try to free the buffers. They must be |
| 85 | * freed before calling this function. |
| 86 | * |
| 87 | * This function will however call the receive completion callback |
| 88 | * in case a response buffer is still available before resetting |
| 89 | * the pointer. |
| 90 | */ |
| 91 | static void |
| 92 | mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter, |
| 93 | struct cmd_ctrl_node *cmd_node) |
| 94 | { |
| 95 | cmd_node->cmd_no = 0; |
| 96 | cmd_node->cmd_flag = 0; |
| 97 | cmd_node->data_buf = NULL; |
| 98 | cmd_node->wait_q_enabled = false; |
| 99 | |
| 100 | if (cmd_node->cmd_skb) |
| 101 | skb_trim(cmd_node->cmd_skb, 0); |
| 102 | |
| 103 | if (cmd_node->resp_skb) { |
| 104 | adapter->if_ops.cmdrsp_complete(adapter, cmd_node->resp_skb); |
| 105 | cmd_node->resp_skb = NULL; |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | /* |
| 110 | * This function returns a command to the command free queue. |
| 111 | * |
| 112 | * The function also calls the completion callback if required, before |
| 113 | * cleaning the command node and re-inserting it into the free queue. |
| 114 | */ |
| 115 | static void |
| 116 | mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter, |
| 117 | struct cmd_ctrl_node *cmd_node) |
| 118 | { |
| 119 | if (!cmd_node) |
| 120 | return; |
| 121 | |
| 122 | if (cmd_node->wait_q_enabled) |
| 123 | mwifiex_complete_cmd(adapter, cmd_node); |
| 124 | /* Clean the node */ |
| 125 | mwifiex_clean_cmd_node(adapter, cmd_node); |
| 126 | |
| 127 | /* Insert node into cmd_free_q */ |
| 128 | spin_lock_bh(&adapter->cmd_free_q_lock); |
| 129 | list_add_tail(&cmd_node->list, &adapter->cmd_free_q); |
| 130 | spin_unlock_bh(&adapter->cmd_free_q_lock); |
| 131 | } |
| 132 | |
| 133 | /* This function reuses a command node. */ |
| 134 | void mwifiex_recycle_cmd_node(struct mwifiex_adapter *adapter, |
| 135 | struct cmd_ctrl_node *cmd_node) |
| 136 | { |
| 137 | struct host_cmd_ds_command *host_cmd = (void *)cmd_node->cmd_skb->data; |
| 138 | |
| 139 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); |
| 140 | |
| 141 | atomic_dec(&adapter->cmd_pending); |
| 142 | mwifiex_dbg(adapter, CMD, |
| 143 | "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n", |
| 144 | le16_to_cpu(host_cmd->command), |
| 145 | atomic_read(&adapter->cmd_pending)); |
| 146 | } |
| 147 | |
| 148 | /* |
| 149 | * This function sends a host command to the firmware. |
| 150 | * |
| 151 | * The function copies the host command into the driver command |
| 152 | * buffer, which will be transferred to the firmware later by the |
| 153 | * main thread. |
| 154 | */ |
| 155 | static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv, |
| 156 | struct host_cmd_ds_command *cmd, |
| 157 | struct mwifiex_ds_misc_cmd *pcmd_ptr) |
| 158 | { |
| 159 | /* Copy the HOST command to command buffer */ |
| 160 | memcpy(cmd, pcmd_ptr->cmd, pcmd_ptr->len); |
| 161 | mwifiex_dbg(priv->adapter, CMD, |
| 162 | "cmd: host cmd size = %d\n", pcmd_ptr->len); |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | /* |
| 167 | * This function downloads a command to the firmware. |
| 168 | * |
| 169 | * The function performs sanity tests, sets the command sequence |
| 170 | * number and size, converts the header fields to CPU format before |
| 171 | * sending. Afterwards, it logs the command ID and action for debugging |
| 172 | * and sets up the command timeout timer. |
| 173 | */ |
| 174 | static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, |
| 175 | struct cmd_ctrl_node *cmd_node) |
| 176 | { |
| 177 | |
| 178 | struct mwifiex_adapter *adapter = priv->adapter; |
| 179 | int ret; |
| 180 | struct host_cmd_ds_command *host_cmd; |
| 181 | uint16_t cmd_code; |
| 182 | uint16_t cmd_size; |
| 183 | |
| 184 | if (!adapter || !cmd_node) |
| 185 | return -1; |
| 186 | |
| 187 | host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); |
| 188 | |
| 189 | /* Sanity test */ |
| 190 | if (host_cmd == NULL || host_cmd->size == 0) { |
| 191 | mwifiex_dbg(adapter, ERROR, |
| 192 | "DNLD_CMD: host_cmd is null\t" |
| 193 | "or cmd size is 0, not sending\n"); |
| 194 | if (cmd_node->wait_q_enabled) |
| 195 | adapter->cmd_wait_q.status = -1; |
| 196 | mwifiex_recycle_cmd_node(adapter, cmd_node); |
| 197 | return -1; |
| 198 | } |
| 199 | |
| 200 | cmd_code = le16_to_cpu(host_cmd->command); |
| 201 | cmd_node->cmd_no = cmd_code; |
| 202 | cmd_size = le16_to_cpu(host_cmd->size); |
| 203 | |
| 204 | if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET && |
| 205 | cmd_code != HostCmd_CMD_FUNC_SHUTDOWN && |
| 206 | cmd_code != HostCmd_CMD_FUNC_INIT) { |
| 207 | mwifiex_dbg(adapter, ERROR, |
| 208 | "DNLD_CMD: FW in reset state, ignore cmd %#x\n", |
| 209 | cmd_code); |
| 210 | mwifiex_recycle_cmd_node(adapter, cmd_node); |
| 211 | queue_work(adapter->workqueue, &adapter->main_work); |
| 212 | return -1; |
| 213 | } |
| 214 | |
| 215 | /* Set command sequence number */ |
| 216 | adapter->seq_num++; |
| 217 | host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO |
| 218 | (adapter->seq_num, |
| 219 | cmd_node->priv->bss_num, |
| 220 | cmd_node->priv->bss_type)); |
| 221 | |
| 222 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 223 | adapter->curr_cmd = cmd_node; |
| 224 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 225 | |
| 226 | /* Adjust skb length */ |
| 227 | if (cmd_node->cmd_skb->len > cmd_size) |
| 228 | /* |
| 229 | * cmd_size is less than sizeof(struct host_cmd_ds_command). |
| 230 | * Trim off the unused portion. |
| 231 | */ |
| 232 | skb_trim(cmd_node->cmd_skb, cmd_size); |
| 233 | else if (cmd_node->cmd_skb->len < cmd_size) |
| 234 | /* |
| 235 | * cmd_size is larger than sizeof(struct host_cmd_ds_command) |
| 236 | * because we have appended custom IE TLV. Increase skb length |
| 237 | * accordingly. |
| 238 | */ |
| 239 | skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len); |
| 240 | |
| 241 | mwifiex_dbg(adapter, CMD, |
| 242 | "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", |
| 243 | cmd_code, |
| 244 | get_unaligned_le16((u8 *)host_cmd + S_DS_GEN), |
| 245 | cmd_size, le16_to_cpu(host_cmd->seq_num)); |
| 246 | mwifiex_dbg_dump(adapter, CMD_D, "cmd buffer:", host_cmd, cmd_size); |
| 247 | |
| 248 | if (adapter->iface_type == MWIFIEX_USB) { |
| 249 | skb_push(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN); |
| 250 | put_unaligned_le32(MWIFIEX_USB_TYPE_CMD, |
| 251 | cmd_node->cmd_skb->data); |
| 252 | adapter->cmd_sent = true; |
| 253 | ret = adapter->if_ops.host_to_card(adapter, |
| 254 | MWIFIEX_USB_EP_CMD_EVENT, |
| 255 | cmd_node->cmd_skb, NULL); |
| 256 | skb_pull(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN); |
| 257 | if (ret == -EBUSY) |
| 258 | cmd_node->cmd_skb = NULL; |
| 259 | } else { |
| 260 | skb_push(cmd_node->cmd_skb, adapter->intf_hdr_len); |
| 261 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, |
| 262 | cmd_node->cmd_skb, NULL); |
| 263 | skb_pull(cmd_node->cmd_skb, adapter->intf_hdr_len); |
| 264 | } |
| 265 | |
| 266 | if (ret == -1) { |
| 267 | mwifiex_dbg(adapter, ERROR, |
| 268 | "DNLD_CMD: host to card failed\n"); |
| 269 | if (adapter->iface_type == MWIFIEX_USB) |
| 270 | adapter->cmd_sent = false; |
| 271 | if (cmd_node->wait_q_enabled) |
| 272 | adapter->cmd_wait_q.status = -1; |
| 273 | mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); |
| 274 | |
| 275 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 276 | adapter->curr_cmd = NULL; |
| 277 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 278 | |
| 279 | adapter->dbg.num_cmd_host_to_card_failure++; |
| 280 | return -1; |
| 281 | } |
| 282 | |
| 283 | /* Save the last command id and action to debug log */ |
| 284 | adapter->dbg.last_cmd_index = |
| 285 | (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM; |
| 286 | adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code; |
| 287 | adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] = |
| 288 | get_unaligned_le16((u8 *)host_cmd + S_DS_GEN); |
| 289 | |
| 290 | /* Setup the timer after transmit command, except that specific |
| 291 | * command might not have command response. |
| 292 | */ |
| 293 | if (cmd_code != HostCmd_CMD_FW_DUMP_EVENT) |
| 294 | mod_timer(&adapter->cmd_timer, |
| 295 | jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S)); |
| 296 | |
| 297 | /* Clear BSS_NO_BITS from HostCmd */ |
| 298 | cmd_code &= HostCmd_CMD_ID_MASK; |
| 299 | |
| 300 | return 0; |
| 301 | } |
| 302 | |
| 303 | /* |
| 304 | * This function downloads a sleep confirm command to the firmware. |
| 305 | * |
| 306 | * The function performs sanity tests, sets the command sequence |
| 307 | * number and size, converts the header fields to CPU format before |
| 308 | * sending. |
| 309 | * |
| 310 | * No responses are needed for sleep confirm command. |
| 311 | */ |
| 312 | static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter) |
| 313 | { |
| 314 | int ret; |
| 315 | struct mwifiex_private *priv; |
| 316 | struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = |
| 317 | (struct mwifiex_opt_sleep_confirm *) |
| 318 | adapter->sleep_cfm->data; |
| 319 | struct sk_buff *sleep_cfm_tmp; |
| 320 | |
| 321 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 322 | |
| 323 | adapter->seq_num++; |
| 324 | sleep_cfm_buf->seq_num = |
| 325 | cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO |
| 326 | (adapter->seq_num, priv->bss_num, |
| 327 | priv->bss_type))); |
| 328 | |
| 329 | mwifiex_dbg(adapter, CMD, |
| 330 | "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", |
| 331 | le16_to_cpu(sleep_cfm_buf->command), |
| 332 | le16_to_cpu(sleep_cfm_buf->action), |
| 333 | le16_to_cpu(sleep_cfm_buf->size), |
| 334 | le16_to_cpu(sleep_cfm_buf->seq_num)); |
| 335 | mwifiex_dbg_dump(adapter, CMD_D, "SLEEP_CFM buffer: ", sleep_cfm_buf, |
| 336 | le16_to_cpu(sleep_cfm_buf->size)); |
| 337 | |
| 338 | if (adapter->iface_type == MWIFIEX_USB) { |
| 339 | sleep_cfm_tmp = |
| 340 | dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) |
| 341 | + MWIFIEX_TYPE_LEN); |
| 342 | if (!sleep_cfm_tmp) { |
| 343 | mwifiex_dbg(adapter, ERROR, |
| 344 | "SLEEP_CFM: dev_alloc_skb failed\n"); |
| 345 | return -ENOMEM; |
| 346 | } |
| 347 | |
| 348 | skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm) |
| 349 | + MWIFIEX_TYPE_LEN); |
| 350 | put_unaligned_le32(MWIFIEX_USB_TYPE_CMD, sleep_cfm_tmp->data); |
| 351 | memcpy(sleep_cfm_tmp->data + MWIFIEX_TYPE_LEN, |
| 352 | adapter->sleep_cfm->data, |
| 353 | sizeof(struct mwifiex_opt_sleep_confirm)); |
| 354 | ret = adapter->if_ops.host_to_card(adapter, |
| 355 | MWIFIEX_USB_EP_CMD_EVENT, |
| 356 | sleep_cfm_tmp, NULL); |
| 357 | if (ret != -EBUSY) |
| 358 | dev_kfree_skb_any(sleep_cfm_tmp); |
| 359 | } else { |
| 360 | skb_push(adapter->sleep_cfm, adapter->intf_hdr_len); |
| 361 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, |
| 362 | adapter->sleep_cfm, NULL); |
| 363 | skb_pull(adapter->sleep_cfm, adapter->intf_hdr_len); |
| 364 | } |
| 365 | |
| 366 | if (ret == -1) { |
| 367 | mwifiex_dbg(adapter, ERROR, "SLEEP_CFM: failed\n"); |
| 368 | adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++; |
| 369 | return -1; |
| 370 | } |
| 371 | |
| 372 | if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl)) |
| 373 | /* Response is not needed for sleep confirm command */ |
| 374 | adapter->ps_state = PS_STATE_SLEEP; |
| 375 | else |
| 376 | adapter->ps_state = PS_STATE_SLEEP_CFM; |
| 377 | |
| 378 | if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl) && |
| 379 | (test_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags) && |
| 380 | !adapter->sleep_period.period)) { |
| 381 | adapter->pm_wakeup_card_req = true; |
| 382 | mwifiex_hs_activated_event(mwifiex_get_priv |
| 383 | (adapter, MWIFIEX_BSS_ROLE_ANY), true); |
| 384 | } |
| 385 | |
| 386 | return ret; |
| 387 | } |
| 388 | |
| 389 | /* |
| 390 | * This function allocates the command buffers and links them to |
| 391 | * the command free queue. |
| 392 | * |
| 393 | * The driver uses a pre allocated number of command buffers, which |
| 394 | * are created at driver initializations and freed at driver cleanup. |
| 395 | * Every command needs to obtain a command buffer from this pool before |
| 396 | * it can be issued. The command free queue lists the command buffers |
| 397 | * currently free to use, while the command pending queue lists the |
| 398 | * command buffers already in use and awaiting handling. Command buffers |
| 399 | * are returned to the free queue after use. |
| 400 | */ |
| 401 | int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter) |
| 402 | { |
| 403 | struct cmd_ctrl_node *cmd_array; |
| 404 | u32 i; |
| 405 | |
| 406 | /* Allocate and initialize struct cmd_ctrl_node */ |
| 407 | cmd_array = kcalloc(MWIFIEX_NUM_OF_CMD_BUFFER, |
| 408 | sizeof(struct cmd_ctrl_node), GFP_KERNEL); |
| 409 | if (!cmd_array) |
| 410 | return -ENOMEM; |
| 411 | |
| 412 | adapter->cmd_pool = cmd_array; |
| 413 | |
| 414 | /* Allocate and initialize command buffers */ |
| 415 | for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { |
| 416 | cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER); |
| 417 | if (!cmd_array[i].skb) { |
| 418 | mwifiex_dbg(adapter, ERROR, |
| 419 | "unable to allocate command buffer\n"); |
| 420 | return -ENOMEM; |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) |
| 425 | mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]); |
| 426 | |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | /* |
| 431 | * This function frees the command buffers. |
| 432 | * |
| 433 | * The function calls the completion callback for all the command |
| 434 | * buffers that still have response buffers associated with them. |
| 435 | */ |
| 436 | void mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter) |
| 437 | { |
| 438 | struct cmd_ctrl_node *cmd_array; |
| 439 | u32 i; |
| 440 | |
| 441 | /* Need to check if cmd pool is allocated or not */ |
| 442 | if (!adapter->cmd_pool) { |
| 443 | mwifiex_dbg(adapter, FATAL, |
| 444 | "info: FREE_CMD_BUF: cmd_pool is null\n"); |
| 445 | return; |
| 446 | } |
| 447 | |
| 448 | cmd_array = adapter->cmd_pool; |
| 449 | |
| 450 | /* Release shared memory buffers */ |
| 451 | for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { |
| 452 | if (cmd_array[i].skb) { |
| 453 | mwifiex_dbg(adapter, CMD, |
| 454 | "cmd: free cmd buffer %d\n", i); |
| 455 | dev_kfree_skb_any(cmd_array[i].skb); |
| 456 | } |
| 457 | if (!cmd_array[i].resp_skb) |
| 458 | continue; |
| 459 | |
| 460 | if (adapter->iface_type == MWIFIEX_USB) |
| 461 | adapter->if_ops.cmdrsp_complete(adapter, |
| 462 | cmd_array[i].resp_skb); |
| 463 | else |
| 464 | dev_kfree_skb_any(cmd_array[i].resp_skb); |
| 465 | } |
| 466 | /* Release struct cmd_ctrl_node */ |
| 467 | if (adapter->cmd_pool) { |
| 468 | mwifiex_dbg(adapter, CMD, |
| 469 | "cmd: free cmd pool\n"); |
| 470 | kfree(adapter->cmd_pool); |
| 471 | adapter->cmd_pool = NULL; |
| 472 | } |
| 473 | } |
| 474 | |
| 475 | /* |
| 476 | * This function handles events generated by firmware. |
| 477 | * |
| 478 | * Event body of events received from firmware are not used (though they are |
| 479 | * saved), only the event ID is used. Some events are re-invoked by |
| 480 | * the driver, with a new event body. |
| 481 | * |
| 482 | * After processing, the function calls the completion callback |
| 483 | * for cleanup. |
| 484 | */ |
| 485 | int mwifiex_process_event(struct mwifiex_adapter *adapter) |
| 486 | { |
| 487 | int ret, i; |
| 488 | struct mwifiex_private *priv = |
| 489 | mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 490 | struct sk_buff *skb = adapter->event_skb; |
| 491 | u32 eventcause; |
| 492 | struct mwifiex_rxinfo *rx_info; |
| 493 | |
| 494 | if ((adapter->event_cause & EVENT_ID_MASK) == EVENT_RADAR_DETECTED) { |
| 495 | for (i = 0; i < adapter->priv_num; i++) { |
| 496 | priv = adapter->priv[i]; |
| 497 | if (priv && mwifiex_is_11h_active(priv)) { |
| 498 | adapter->event_cause |= |
| 499 | ((priv->bss_num & 0xff) << 16) | |
| 500 | ((priv->bss_type & 0xff) << 24); |
| 501 | break; |
| 502 | } |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | eventcause = adapter->event_cause; |
| 507 | |
| 508 | /* Save the last event to debug log */ |
| 509 | adapter->dbg.last_event_index = |
| 510 | (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM; |
| 511 | adapter->dbg.last_event[adapter->dbg.last_event_index] = |
| 512 | (u16) eventcause; |
| 513 | |
| 514 | /* Get BSS number and corresponding priv */ |
| 515 | priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause), |
| 516 | EVENT_GET_BSS_TYPE(eventcause)); |
| 517 | if (!priv) |
| 518 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 519 | |
| 520 | /* Clear BSS_NO_BITS from event */ |
| 521 | eventcause &= EVENT_ID_MASK; |
| 522 | adapter->event_cause = eventcause; |
| 523 | |
| 524 | if (skb) { |
| 525 | rx_info = MWIFIEX_SKB_RXCB(skb); |
| 526 | memset(rx_info, 0, sizeof(*rx_info)); |
| 527 | rx_info->bss_num = priv->bss_num; |
| 528 | rx_info->bss_type = priv->bss_type; |
| 529 | mwifiex_dbg_dump(adapter, EVT_D, "Event Buf:", |
| 530 | skb->data, skb->len); |
| 531 | } |
| 532 | |
| 533 | mwifiex_dbg(adapter, EVENT, "EVENT: cause: %#x\n", eventcause); |
| 534 | |
| 535 | if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) |
| 536 | ret = mwifiex_process_uap_event(priv); |
| 537 | else |
| 538 | ret = mwifiex_process_sta_event(priv); |
| 539 | |
| 540 | adapter->event_cause = 0; |
| 541 | adapter->event_skb = NULL; |
| 542 | adapter->if_ops.event_complete(adapter, skb); |
| 543 | |
| 544 | return ret; |
| 545 | } |
| 546 | |
| 547 | /* |
| 548 | * This function prepares a command and send it to the firmware. |
| 549 | * |
| 550 | * Preparation includes - |
| 551 | * - Sanity tests to make sure the card is still present or the FW |
| 552 | * is not reset |
| 553 | * - Getting a new command node from the command free queue |
| 554 | * - Initializing the command node for default parameters |
| 555 | * - Fill up the non-default parameters and buffer pointers |
| 556 | * - Add the command to pending queue |
| 557 | */ |
| 558 | int mwifiex_send_cmd(struct mwifiex_private *priv, u16 cmd_no, |
| 559 | u16 cmd_action, u32 cmd_oid, void *data_buf, bool sync) |
| 560 | { |
| 561 | int ret; |
| 562 | struct mwifiex_adapter *adapter = priv->adapter; |
| 563 | struct cmd_ctrl_node *cmd_node; |
| 564 | struct host_cmd_ds_command *cmd_ptr; |
| 565 | |
| 566 | if (!adapter) { |
| 567 | pr_err("PREP_CMD: adapter is NULL\n"); |
| 568 | return -1; |
| 569 | } |
| 570 | |
| 571 | if (test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) { |
| 572 | mwifiex_dbg(adapter, ERROR, |
| 573 | "PREP_CMD: device in suspended state\n"); |
| 574 | return -1; |
| 575 | } |
| 576 | |
| 577 | if (test_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags) && |
| 578 | cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) { |
| 579 | mwifiex_dbg(adapter, ERROR, |
| 580 | "PREP_CMD: host entering sleep state\n"); |
| 581 | return -1; |
| 582 | } |
| 583 | |
| 584 | if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags)) { |
| 585 | mwifiex_dbg(adapter, ERROR, |
| 586 | "PREP_CMD: card is removed\n"); |
| 587 | return -1; |
| 588 | } |
| 589 | |
| 590 | if (test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { |
| 591 | mwifiex_dbg(adapter, ERROR, |
| 592 | "PREP_CMD: FW is in bad state\n"); |
| 593 | return -1; |
| 594 | } |
| 595 | |
| 596 | if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) { |
| 597 | if (cmd_no != HostCmd_CMD_FUNC_INIT) { |
| 598 | mwifiex_dbg(adapter, ERROR, |
| 599 | "PREP_CMD: FW in reset state\n"); |
| 600 | return -1; |
| 601 | } |
| 602 | } |
| 603 | /* We don't expect commands in manufacturing mode. They are cooked |
| 604 | * in application and ready to download buffer is passed to the driver |
| 605 | */ |
| 606 | if (adapter->mfg_mode && cmd_no) { |
| 607 | dev_dbg(adapter->dev, "Ignoring commands in manufacturing mode\n"); |
| 608 | return -1; |
| 609 | } |
| 610 | |
| 611 | |
| 612 | /* Get a new command node */ |
| 613 | cmd_node = mwifiex_get_cmd_node(adapter); |
| 614 | |
| 615 | if (!cmd_node) { |
| 616 | mwifiex_dbg(adapter, ERROR, |
| 617 | "PREP_CMD: no free cmd node\n"); |
| 618 | return -1; |
| 619 | } |
| 620 | |
| 621 | /* Initialize the command node */ |
| 622 | mwifiex_init_cmd_node(priv, cmd_node, cmd_no, data_buf, sync); |
| 623 | |
| 624 | if (!cmd_node->cmd_skb) { |
| 625 | mwifiex_dbg(adapter, ERROR, |
| 626 | "PREP_CMD: no free cmd buf\n"); |
| 627 | return -1; |
| 628 | } |
| 629 | |
| 630 | skb_put_zero(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)); |
| 631 | |
| 632 | cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); |
| 633 | cmd_ptr->command = cpu_to_le16(cmd_no); |
| 634 | cmd_ptr->result = 0; |
| 635 | |
| 636 | /* Prepare command */ |
| 637 | if (cmd_no) { |
| 638 | switch (cmd_no) { |
| 639 | case HostCmd_CMD_UAP_SYS_CONFIG: |
| 640 | case HostCmd_CMD_UAP_BSS_START: |
| 641 | case HostCmd_CMD_UAP_BSS_STOP: |
| 642 | case HostCmd_CMD_UAP_STA_DEAUTH: |
| 643 | case HOST_CMD_APCMD_SYS_RESET: |
| 644 | case HOST_CMD_APCMD_STA_LIST: |
| 645 | ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action, |
| 646 | cmd_oid, data_buf, |
| 647 | cmd_ptr); |
| 648 | break; |
| 649 | default: |
| 650 | ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action, |
| 651 | cmd_oid, data_buf, |
| 652 | cmd_ptr); |
| 653 | break; |
| 654 | } |
| 655 | } else { |
| 656 | ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf); |
| 657 | cmd_node->cmd_flag |= CMD_F_HOSTCMD; |
| 658 | } |
| 659 | |
| 660 | /* Return error, since the command preparation failed */ |
| 661 | if (ret) { |
| 662 | mwifiex_dbg(adapter, ERROR, |
| 663 | "PREP_CMD: cmd %#x preparation failed\n", |
| 664 | cmd_no); |
| 665 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); |
| 666 | return -1; |
| 667 | } |
| 668 | |
| 669 | /* Send command */ |
| 670 | if (cmd_no == HostCmd_CMD_802_11_SCAN || |
| 671 | cmd_no == HostCmd_CMD_802_11_SCAN_EXT) { |
| 672 | mwifiex_queue_scan_cmd(priv, cmd_node); |
| 673 | } else { |
| 674 | mwifiex_insert_cmd_to_pending_q(adapter, cmd_node); |
| 675 | queue_work(adapter->workqueue, &adapter->main_work); |
| 676 | if (cmd_node->wait_q_enabled) |
| 677 | ret = mwifiex_wait_queue_complete(adapter, cmd_node); |
| 678 | } |
| 679 | |
| 680 | return ret; |
| 681 | } |
| 682 | |
| 683 | /* |
| 684 | * This function queues a command to the command pending queue. |
| 685 | * |
| 686 | * This in effect adds the command to the command list to be executed. |
| 687 | * Exit PS command is handled specially, by placing it always to the |
| 688 | * front of the command queue. |
| 689 | */ |
| 690 | void |
| 691 | mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter, |
| 692 | struct cmd_ctrl_node *cmd_node) |
| 693 | { |
| 694 | struct host_cmd_ds_command *host_cmd = NULL; |
| 695 | u16 command; |
| 696 | bool add_tail = true; |
| 697 | |
| 698 | host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); |
| 699 | if (!host_cmd) { |
| 700 | mwifiex_dbg(adapter, ERROR, "QUEUE_CMD: host_cmd is NULL\n"); |
| 701 | return; |
| 702 | } |
| 703 | |
| 704 | command = le16_to_cpu(host_cmd->command); |
| 705 | |
| 706 | /* Exit_PS command needs to be queued in the header always. */ |
| 707 | if (command == HostCmd_CMD_802_11_PS_MODE_ENH) { |
| 708 | struct host_cmd_ds_802_11_ps_mode_enh *pm = |
| 709 | &host_cmd->params.psmode_enh; |
| 710 | if ((le16_to_cpu(pm->action) == DIS_PS) || |
| 711 | (le16_to_cpu(pm->action) == DIS_AUTO_PS)) { |
| 712 | if (adapter->ps_state != PS_STATE_AWAKE) |
| 713 | add_tail = false; |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | spin_lock_bh(&adapter->cmd_pending_q_lock); |
| 718 | if (add_tail) |
| 719 | list_add_tail(&cmd_node->list, &adapter->cmd_pending_q); |
| 720 | else |
| 721 | list_add(&cmd_node->list, &adapter->cmd_pending_q); |
| 722 | spin_unlock_bh(&adapter->cmd_pending_q_lock); |
| 723 | |
| 724 | atomic_inc(&adapter->cmd_pending); |
| 725 | mwifiex_dbg(adapter, CMD, |
| 726 | "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n", |
| 727 | command, atomic_read(&adapter->cmd_pending)); |
| 728 | } |
| 729 | |
| 730 | /* |
| 731 | * This function executes the next command in command pending queue. |
| 732 | * |
| 733 | * This function will fail if a command is already in processing stage, |
| 734 | * otherwise it will dequeue the first command from the command pending |
| 735 | * queue and send to the firmware. |
| 736 | * |
| 737 | * If the device is currently in host sleep mode, any commands, except the |
| 738 | * host sleep configuration command will de-activate the host sleep. For PS |
| 739 | * mode, the function will put the firmware back to sleep if applicable. |
| 740 | */ |
| 741 | int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter) |
| 742 | { |
| 743 | struct mwifiex_private *priv; |
| 744 | struct cmd_ctrl_node *cmd_node; |
| 745 | int ret = 0; |
| 746 | struct host_cmd_ds_command *host_cmd; |
| 747 | |
| 748 | /* Check if already in processing */ |
| 749 | if (adapter->curr_cmd) { |
| 750 | mwifiex_dbg(adapter, FATAL, |
| 751 | "EXEC_NEXT_CMD: cmd in processing\n"); |
| 752 | return -1; |
| 753 | } |
| 754 | |
| 755 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 756 | /* Check if any command is pending */ |
| 757 | spin_lock_bh(&adapter->cmd_pending_q_lock); |
| 758 | if (list_empty(&adapter->cmd_pending_q)) { |
| 759 | spin_unlock_bh(&adapter->cmd_pending_q_lock); |
| 760 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 761 | return 0; |
| 762 | } |
| 763 | cmd_node = list_first_entry(&adapter->cmd_pending_q, |
| 764 | struct cmd_ctrl_node, list); |
| 765 | |
| 766 | host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); |
| 767 | priv = cmd_node->priv; |
| 768 | |
| 769 | if (adapter->ps_state != PS_STATE_AWAKE) { |
| 770 | mwifiex_dbg(adapter, ERROR, |
| 771 | "%s: cannot send cmd in sleep state,\t" |
| 772 | "this should not happen\n", __func__); |
| 773 | spin_unlock_bh(&adapter->cmd_pending_q_lock); |
| 774 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 775 | return ret; |
| 776 | } |
| 777 | |
| 778 | list_del(&cmd_node->list); |
| 779 | spin_unlock_bh(&adapter->cmd_pending_q_lock); |
| 780 | |
| 781 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 782 | ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node); |
| 783 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 784 | /* Any command sent to the firmware when host is in sleep |
| 785 | * mode should de-configure host sleep. We should skip the |
| 786 | * host sleep configuration command itself though |
| 787 | */ |
| 788 | if (priv && (host_cmd->command != |
| 789 | cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) { |
| 790 | if (adapter->hs_activated) { |
| 791 | clear_bit(MWIFIEX_IS_HS_CONFIGURED, |
| 792 | &adapter->work_flags); |
| 793 | mwifiex_hs_activated_event(priv, false); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | return ret; |
| 798 | } |
| 799 | |
| 800 | /* |
| 801 | * This function handles the command response. |
| 802 | * |
| 803 | * After processing, the function cleans the command node and puts |
| 804 | * it back to the command free queue. |
| 805 | */ |
| 806 | int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter) |
| 807 | { |
| 808 | struct host_cmd_ds_command *resp; |
| 809 | struct mwifiex_private *priv = |
| 810 | mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 811 | int ret = 0; |
| 812 | uint16_t orig_cmdresp_no; |
| 813 | uint16_t cmdresp_no; |
| 814 | uint16_t cmdresp_result; |
| 815 | |
| 816 | if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) { |
| 817 | resp = (struct host_cmd_ds_command *) adapter->upld_buf; |
| 818 | mwifiex_dbg(adapter, ERROR, |
| 819 | "CMD_RESP: NULL curr_cmd, %#x\n", |
| 820 | le16_to_cpu(resp->command)); |
| 821 | return -1; |
| 822 | } |
| 823 | |
| 824 | resp = (struct host_cmd_ds_command *)adapter->curr_cmd->resp_skb->data; |
| 825 | orig_cmdresp_no = le16_to_cpu(resp->command); |
| 826 | cmdresp_no = (orig_cmdresp_no & HostCmd_CMD_ID_MASK); |
| 827 | |
| 828 | if (adapter->curr_cmd->cmd_no != cmdresp_no) { |
| 829 | mwifiex_dbg(adapter, ERROR, |
| 830 | "cmdresp error: cmd=0x%x cmd_resp=0x%x\n", |
| 831 | adapter->curr_cmd->cmd_no, cmdresp_no); |
| 832 | return -1; |
| 833 | } |
| 834 | /* Now we got response from FW, cancel the command timer */ |
| 835 | del_timer_sync(&adapter->cmd_timer); |
| 836 | clear_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags); |
| 837 | |
| 838 | if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { |
| 839 | /* Copy original response back to response buffer */ |
| 840 | struct mwifiex_ds_misc_cmd *hostcmd; |
| 841 | uint16_t size = le16_to_cpu(resp->size); |
| 842 | mwifiex_dbg(adapter, INFO, |
| 843 | "info: host cmd resp size = %d\n", size); |
| 844 | size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER); |
| 845 | if (adapter->curr_cmd->data_buf) { |
| 846 | hostcmd = adapter->curr_cmd->data_buf; |
| 847 | hostcmd->len = size; |
| 848 | memcpy(hostcmd->cmd, resp, size); |
| 849 | } |
| 850 | } |
| 851 | |
| 852 | /* Get BSS number and corresponding priv */ |
| 853 | priv = mwifiex_get_priv_by_id(adapter, |
| 854 | HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)), |
| 855 | HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num))); |
| 856 | if (!priv) |
| 857 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 858 | /* Clear RET_BIT from HostCmd */ |
| 859 | resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK); |
| 860 | |
| 861 | cmdresp_no = le16_to_cpu(resp->command); |
| 862 | cmdresp_result = le16_to_cpu(resp->result); |
| 863 | |
| 864 | /* Save the last command response to debug log */ |
| 865 | adapter->dbg.last_cmd_resp_index = |
| 866 | (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM; |
| 867 | adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] = |
| 868 | orig_cmdresp_no; |
| 869 | |
| 870 | mwifiex_dbg(adapter, CMD, |
| 871 | "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n", |
| 872 | orig_cmdresp_no, cmdresp_result, |
| 873 | le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num)); |
| 874 | mwifiex_dbg_dump(adapter, CMD_D, "CMD_RESP buffer:", resp, |
| 875 | le16_to_cpu(resp->size)); |
| 876 | |
| 877 | if (!(orig_cmdresp_no & HostCmd_RET_BIT)) { |
| 878 | mwifiex_dbg(adapter, ERROR, "CMD_RESP: invalid cmd resp\n"); |
| 879 | if (adapter->curr_cmd->wait_q_enabled) |
| 880 | adapter->cmd_wait_q.status = -1; |
| 881 | |
| 882 | mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); |
| 883 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 884 | adapter->curr_cmd = NULL; |
| 885 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 886 | return -1; |
| 887 | } |
| 888 | |
| 889 | if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { |
| 890 | adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD; |
| 891 | if ((cmdresp_result == HostCmd_RESULT_OK) && |
| 892 | (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH)) |
| 893 | ret = mwifiex_ret_802_11_hs_cfg(priv, resp); |
| 894 | } else { |
| 895 | /* handle response */ |
| 896 | ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp); |
| 897 | } |
| 898 | |
| 899 | /* Check init command response */ |
| 900 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { |
| 901 | if (ret) { |
| 902 | mwifiex_dbg(adapter, ERROR, |
| 903 | "%s: cmd %#x failed during\t" |
| 904 | "initialization\n", __func__, cmdresp_no); |
| 905 | mwifiex_init_fw_complete(adapter); |
| 906 | return -1; |
| 907 | } else if (adapter->last_init_cmd == cmdresp_no) |
| 908 | adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE; |
| 909 | } |
| 910 | |
| 911 | if (adapter->curr_cmd) { |
| 912 | if (adapter->curr_cmd->wait_q_enabled) |
| 913 | adapter->cmd_wait_q.status = ret; |
| 914 | |
| 915 | mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); |
| 916 | |
| 917 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 918 | adapter->curr_cmd = NULL; |
| 919 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 920 | } |
| 921 | |
| 922 | return ret; |
| 923 | } |
| 924 | |
| 925 | /* |
| 926 | * This function handles the timeout of command sending. |
| 927 | * |
| 928 | * It will re-send the same command again. |
| 929 | */ |
| 930 | void |
| 931 | mwifiex_cmd_timeout_func(struct timer_list *t) |
| 932 | { |
| 933 | struct mwifiex_adapter *adapter = from_timer(adapter, t, cmd_timer); |
| 934 | struct cmd_ctrl_node *cmd_node; |
| 935 | |
| 936 | set_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags); |
| 937 | if (!adapter->curr_cmd) { |
| 938 | mwifiex_dbg(adapter, ERROR, |
| 939 | "cmd: empty curr_cmd\n"); |
| 940 | return; |
| 941 | } |
| 942 | cmd_node = adapter->curr_cmd; |
| 943 | if (cmd_node) { |
| 944 | adapter->dbg.timeout_cmd_id = |
| 945 | adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index]; |
| 946 | adapter->dbg.timeout_cmd_act = |
| 947 | adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index]; |
| 948 | mwifiex_dbg(adapter, MSG, |
| 949 | "%s: Timeout cmd id = %#x, act = %#x\n", __func__, |
| 950 | adapter->dbg.timeout_cmd_id, |
| 951 | adapter->dbg.timeout_cmd_act); |
| 952 | |
| 953 | mwifiex_dbg(adapter, MSG, |
| 954 | "num_data_h2c_failure = %d\n", |
| 955 | adapter->dbg.num_tx_host_to_card_failure); |
| 956 | mwifiex_dbg(adapter, MSG, |
| 957 | "num_cmd_h2c_failure = %d\n", |
| 958 | adapter->dbg.num_cmd_host_to_card_failure); |
| 959 | |
| 960 | mwifiex_dbg(adapter, MSG, |
| 961 | "is_cmd_timedout = %d\n", |
| 962 | test_bit(MWIFIEX_IS_CMD_TIMEDOUT, |
| 963 | &adapter->work_flags)); |
| 964 | mwifiex_dbg(adapter, MSG, |
| 965 | "num_tx_timeout = %d\n", |
| 966 | adapter->dbg.num_tx_timeout); |
| 967 | |
| 968 | mwifiex_dbg(adapter, MSG, |
| 969 | "last_cmd_index = %d\n", |
| 970 | adapter->dbg.last_cmd_index); |
| 971 | mwifiex_dbg(adapter, MSG, |
| 972 | "last_cmd_id: %*ph\n", |
| 973 | (int)sizeof(adapter->dbg.last_cmd_id), |
| 974 | adapter->dbg.last_cmd_id); |
| 975 | mwifiex_dbg(adapter, MSG, |
| 976 | "last_cmd_act: %*ph\n", |
| 977 | (int)sizeof(adapter->dbg.last_cmd_act), |
| 978 | adapter->dbg.last_cmd_act); |
| 979 | |
| 980 | mwifiex_dbg(adapter, MSG, |
| 981 | "last_cmd_resp_index = %d\n", |
| 982 | adapter->dbg.last_cmd_resp_index); |
| 983 | mwifiex_dbg(adapter, MSG, |
| 984 | "last_cmd_resp_id: %*ph\n", |
| 985 | (int)sizeof(adapter->dbg.last_cmd_resp_id), |
| 986 | adapter->dbg.last_cmd_resp_id); |
| 987 | |
| 988 | mwifiex_dbg(adapter, MSG, |
| 989 | "last_event_index = %d\n", |
| 990 | adapter->dbg.last_event_index); |
| 991 | mwifiex_dbg(adapter, MSG, |
| 992 | "last_event: %*ph\n", |
| 993 | (int)sizeof(adapter->dbg.last_event), |
| 994 | adapter->dbg.last_event); |
| 995 | |
| 996 | mwifiex_dbg(adapter, MSG, |
| 997 | "data_sent=%d cmd_sent=%d\n", |
| 998 | adapter->data_sent, adapter->cmd_sent); |
| 999 | |
| 1000 | mwifiex_dbg(adapter, MSG, |
| 1001 | "ps_mode=%d ps_state=%d\n", |
| 1002 | adapter->ps_mode, adapter->ps_state); |
| 1003 | |
| 1004 | if (cmd_node->wait_q_enabled) { |
| 1005 | adapter->cmd_wait_q.status = -ETIMEDOUT; |
| 1006 | mwifiex_cancel_pending_ioctl(adapter); |
| 1007 | } |
| 1008 | } |
| 1009 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { |
| 1010 | mwifiex_init_fw_complete(adapter); |
| 1011 | return; |
| 1012 | } |
| 1013 | |
| 1014 | if (adapter->if_ops.device_dump) |
| 1015 | adapter->if_ops.device_dump(adapter); |
| 1016 | |
| 1017 | if (adapter->if_ops.card_reset) |
| 1018 | adapter->if_ops.card_reset(adapter); |
| 1019 | } |
| 1020 | |
| 1021 | void |
| 1022 | mwifiex_cancel_pending_scan_cmd(struct mwifiex_adapter *adapter) |
| 1023 | { |
| 1024 | struct cmd_ctrl_node *cmd_node = NULL, *tmp_node; |
| 1025 | |
| 1026 | /* Cancel all pending scan command */ |
| 1027 | spin_lock_bh(&adapter->scan_pending_q_lock); |
| 1028 | list_for_each_entry_safe(cmd_node, tmp_node, |
| 1029 | &adapter->scan_pending_q, list) { |
| 1030 | list_del(&cmd_node->list); |
| 1031 | cmd_node->wait_q_enabled = false; |
| 1032 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); |
| 1033 | } |
| 1034 | spin_unlock_bh(&adapter->scan_pending_q_lock); |
| 1035 | } |
| 1036 | |
| 1037 | /* |
| 1038 | * This function cancels all the pending commands. |
| 1039 | * |
| 1040 | * The current command, all commands in command pending queue and all scan |
| 1041 | * commands in scan pending queue are cancelled. All the completion callbacks |
| 1042 | * are called with failure status to ensure cleanup. |
| 1043 | */ |
| 1044 | void |
| 1045 | mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter) |
| 1046 | { |
| 1047 | struct cmd_ctrl_node *cmd_node = NULL, *tmp_node; |
| 1048 | |
| 1049 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 1050 | /* Cancel current cmd */ |
| 1051 | if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) { |
| 1052 | adapter->cmd_wait_q.status = -1; |
| 1053 | mwifiex_complete_cmd(adapter, adapter->curr_cmd); |
| 1054 | adapter->curr_cmd->wait_q_enabled = false; |
| 1055 | /* no recycle probably wait for response */ |
| 1056 | } |
| 1057 | /* Cancel all pending command */ |
| 1058 | spin_lock_bh(&adapter->cmd_pending_q_lock); |
| 1059 | list_for_each_entry_safe(cmd_node, tmp_node, |
| 1060 | &adapter->cmd_pending_q, list) { |
| 1061 | list_del(&cmd_node->list); |
| 1062 | |
| 1063 | if (cmd_node->wait_q_enabled) |
| 1064 | adapter->cmd_wait_q.status = -1; |
| 1065 | mwifiex_recycle_cmd_node(adapter, cmd_node); |
| 1066 | } |
| 1067 | spin_unlock_bh(&adapter->cmd_pending_q_lock); |
| 1068 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 1069 | |
| 1070 | mwifiex_cancel_scan(adapter); |
| 1071 | } |
| 1072 | |
| 1073 | /* |
| 1074 | * This function cancels all pending commands that matches with |
| 1075 | * the given IOCTL request. |
| 1076 | * |
| 1077 | * Both the current command buffer and the pending command queue are |
| 1078 | * searched for matching IOCTL request. The completion callback of |
| 1079 | * the matched command is called with failure status to ensure cleanup. |
| 1080 | * In case of scan commands, all pending commands in scan pending queue |
| 1081 | * are cancelled. |
| 1082 | */ |
| 1083 | static void |
| 1084 | mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter) |
| 1085 | { |
| 1086 | struct cmd_ctrl_node *cmd_node = NULL; |
| 1087 | |
| 1088 | if ((adapter->curr_cmd) && |
| 1089 | (adapter->curr_cmd->wait_q_enabled)) { |
| 1090 | spin_lock_bh(&adapter->mwifiex_cmd_lock); |
| 1091 | cmd_node = adapter->curr_cmd; |
| 1092 | /* setting curr_cmd to NULL is quite dangerous, because |
| 1093 | * mwifiex_process_cmdresp checks curr_cmd to be != NULL |
| 1094 | * at the beginning then relies on it and dereferences |
| 1095 | * it at will |
| 1096 | * this probably works since mwifiex_cmd_timeout_func |
| 1097 | * is the only caller of this function and responses |
| 1098 | * at that point |
| 1099 | */ |
| 1100 | adapter->curr_cmd = NULL; |
| 1101 | spin_unlock_bh(&adapter->mwifiex_cmd_lock); |
| 1102 | |
| 1103 | mwifiex_recycle_cmd_node(adapter, cmd_node); |
| 1104 | } |
| 1105 | |
| 1106 | mwifiex_cancel_scan(adapter); |
| 1107 | } |
| 1108 | |
| 1109 | /* |
| 1110 | * This function sends the sleep confirm command to firmware, if |
| 1111 | * possible. |
| 1112 | * |
| 1113 | * The sleep confirm command cannot be issued if command response, |
| 1114 | * data response or event response is awaiting handling, or if we |
| 1115 | * are in the middle of sending a command, or expecting a command |
| 1116 | * response. |
| 1117 | */ |
| 1118 | void |
| 1119 | mwifiex_check_ps_cond(struct mwifiex_adapter *adapter) |
| 1120 | { |
| 1121 | if (!adapter->cmd_sent && !atomic_read(&adapter->tx_hw_pending) && |
| 1122 | !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter)) |
| 1123 | mwifiex_dnld_sleep_confirm_cmd(adapter); |
| 1124 | else |
| 1125 | mwifiex_dbg(adapter, CMD, |
| 1126 | "cmd: Delay Sleep Confirm (%s%s%s%s)\n", |
| 1127 | (adapter->cmd_sent) ? "D" : "", |
| 1128 | atomic_read(&adapter->tx_hw_pending) ? "T" : "", |
| 1129 | (adapter->curr_cmd) ? "C" : "", |
| 1130 | (IS_CARD_RX_RCVD(adapter)) ? "R" : ""); |
| 1131 | } |
| 1132 | |
| 1133 | /* |
| 1134 | * This function sends a Host Sleep activated event to applications. |
| 1135 | * |
| 1136 | * This event is generated by the driver, with a blank event body. |
| 1137 | */ |
| 1138 | void |
| 1139 | mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated) |
| 1140 | { |
| 1141 | if (activated) { |
| 1142 | if (test_bit(MWIFIEX_IS_HS_CONFIGURED, |
| 1143 | &priv->adapter->work_flags)) { |
| 1144 | priv->adapter->hs_activated = true; |
| 1145 | mwifiex_update_rxreor_flags(priv->adapter, |
| 1146 | RXREOR_FORCE_NO_DROP); |
| 1147 | mwifiex_dbg(priv->adapter, EVENT, |
| 1148 | "event: hs_activated\n"); |
| 1149 | priv->adapter->hs_activate_wait_q_woken = true; |
| 1150 | wake_up_interruptible( |
| 1151 | &priv->adapter->hs_activate_wait_q); |
| 1152 | } else { |
| 1153 | mwifiex_dbg(priv->adapter, EVENT, |
| 1154 | "event: HS not configured\n"); |
| 1155 | } |
| 1156 | } else { |
| 1157 | mwifiex_dbg(priv->adapter, EVENT, |
| 1158 | "event: hs_deactivated\n"); |
| 1159 | priv->adapter->hs_activated = false; |
| 1160 | } |
| 1161 | } |
| 1162 | |
| 1163 | /* |
| 1164 | * This function handles the command response of a Host Sleep configuration |
| 1165 | * command. |
| 1166 | * |
| 1167 | * Handling includes changing the header fields into CPU format |
| 1168 | * and setting the current host sleep activation status in driver. |
| 1169 | * |
| 1170 | * In case host sleep status change, the function generates an event to |
| 1171 | * notify the applications. |
| 1172 | */ |
| 1173 | int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv, |
| 1174 | struct host_cmd_ds_command *resp) |
| 1175 | { |
| 1176 | struct mwifiex_adapter *adapter = priv->adapter; |
| 1177 | struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg = |
| 1178 | &resp->params.opt_hs_cfg; |
| 1179 | uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions); |
| 1180 | |
| 1181 | if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) && |
| 1182 | adapter->iface_type != MWIFIEX_USB) { |
| 1183 | mwifiex_hs_activated_event(priv, true); |
| 1184 | return 0; |
| 1185 | } else { |
| 1186 | mwifiex_dbg(adapter, CMD, |
| 1187 | "cmd: CMD_RESP: HS_CFG cmd reply\t" |
| 1188 | " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n", |
| 1189 | resp->result, conditions, |
| 1190 | phs_cfg->params.hs_config.gpio, |
| 1191 | phs_cfg->params.hs_config.gap); |
| 1192 | } |
| 1193 | if (conditions != HS_CFG_CANCEL) { |
| 1194 | set_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags); |
| 1195 | if (adapter->iface_type == MWIFIEX_USB) |
| 1196 | mwifiex_hs_activated_event(priv, true); |
| 1197 | } else { |
| 1198 | clear_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags); |
| 1199 | if (adapter->hs_activated) |
| 1200 | mwifiex_hs_activated_event(priv, false); |
| 1201 | } |
| 1202 | |
| 1203 | return 0; |
| 1204 | } |
| 1205 | |
| 1206 | /* |
| 1207 | * This function wakes up the adapter and generates a Host Sleep |
| 1208 | * cancel event on receiving the power up interrupt. |
| 1209 | */ |
| 1210 | void |
| 1211 | mwifiex_process_hs_config(struct mwifiex_adapter *adapter) |
| 1212 | { |
| 1213 | mwifiex_dbg(adapter, INFO, |
| 1214 | "info: %s: auto cancelling host sleep\t" |
| 1215 | "since there is interrupt from the firmware\n", |
| 1216 | __func__); |
| 1217 | |
| 1218 | adapter->if_ops.wakeup(adapter); |
| 1219 | adapter->hs_activated = false; |
| 1220 | clear_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags); |
| 1221 | clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); |
| 1222 | mwifiex_hs_activated_event(mwifiex_get_priv(adapter, |
| 1223 | MWIFIEX_BSS_ROLE_ANY), |
| 1224 | false); |
| 1225 | } |
| 1226 | EXPORT_SYMBOL_GPL(mwifiex_process_hs_config); |
| 1227 | |
| 1228 | /* |
| 1229 | * This function handles the command response of a sleep confirm command. |
| 1230 | * |
| 1231 | * The function sets the card state to SLEEP if the response indicates success. |
| 1232 | */ |
| 1233 | void |
| 1234 | mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter, |
| 1235 | u8 *pbuf, u32 upld_len) |
| 1236 | { |
| 1237 | struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf; |
| 1238 | struct mwifiex_private *priv = |
| 1239 | mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 1240 | uint16_t result = le16_to_cpu(cmd->result); |
| 1241 | uint16_t command = le16_to_cpu(cmd->command); |
| 1242 | uint16_t seq_num = le16_to_cpu(cmd->seq_num); |
| 1243 | |
| 1244 | if (!upld_len) { |
| 1245 | mwifiex_dbg(adapter, ERROR, |
| 1246 | "%s: cmd size is 0\n", __func__); |
| 1247 | return; |
| 1248 | } |
| 1249 | |
| 1250 | mwifiex_dbg(adapter, CMD, |
| 1251 | "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n", |
| 1252 | command, result, le16_to_cpu(cmd->size), seq_num); |
| 1253 | |
| 1254 | /* Get BSS number and corresponding priv */ |
| 1255 | priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num), |
| 1256 | HostCmd_GET_BSS_TYPE(seq_num)); |
| 1257 | if (!priv) |
| 1258 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| 1259 | |
| 1260 | /* Update sequence number */ |
| 1261 | seq_num = HostCmd_GET_SEQ_NO(seq_num); |
| 1262 | /* Clear RET_BIT from HostCmd */ |
| 1263 | command &= HostCmd_CMD_ID_MASK; |
| 1264 | |
| 1265 | if (command != HostCmd_CMD_802_11_PS_MODE_ENH) { |
| 1266 | mwifiex_dbg(adapter, ERROR, |
| 1267 | "%s: rcvd unexpected resp for cmd %#x, result = %x\n", |
| 1268 | __func__, command, result); |
| 1269 | return; |
| 1270 | } |
| 1271 | |
| 1272 | if (result) { |
| 1273 | mwifiex_dbg(adapter, ERROR, |
| 1274 | "%s: sleep confirm cmd failed\n", |
| 1275 | __func__); |
| 1276 | adapter->pm_wakeup_card_req = false; |
| 1277 | adapter->ps_state = PS_STATE_AWAKE; |
| 1278 | return; |
| 1279 | } |
| 1280 | adapter->pm_wakeup_card_req = true; |
| 1281 | if (test_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags)) |
| 1282 | mwifiex_hs_activated_event(mwifiex_get_priv |
| 1283 | (adapter, MWIFIEX_BSS_ROLE_ANY), |
| 1284 | true); |
| 1285 | adapter->ps_state = PS_STATE_SLEEP; |
| 1286 | cmd->command = cpu_to_le16(command); |
| 1287 | cmd->seq_num = cpu_to_le16(seq_num); |
| 1288 | } |
| 1289 | EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp); |
| 1290 | |
| 1291 | /* |
| 1292 | * This function prepares an enhanced power mode command. |
| 1293 | * |
| 1294 | * This function can be used to disable power save or to configure |
| 1295 | * power save with auto PS or STA PS or auto deep sleep. |
| 1296 | * |
| 1297 | * Preparation includes - |
| 1298 | * - Setting command ID, action and proper size |
| 1299 | * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV, |
| 1300 | * auto deep sleep TLV (as required) |
| 1301 | * - Ensuring correct endian-ness |
| 1302 | */ |
| 1303 | int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv, |
| 1304 | struct host_cmd_ds_command *cmd, |
| 1305 | u16 cmd_action, uint16_t ps_bitmap, |
| 1306 | struct mwifiex_ds_auto_ds *auto_ds) |
| 1307 | { |
| 1308 | struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh = |
| 1309 | &cmd->params.psmode_enh; |
| 1310 | u8 *tlv; |
| 1311 | u16 cmd_size = 0; |
| 1312 | |
| 1313 | cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); |
| 1314 | if (cmd_action == DIS_AUTO_PS) { |
| 1315 | psmode_enh->action = cpu_to_le16(DIS_AUTO_PS); |
| 1316 | psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); |
| 1317 | cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + |
| 1318 | sizeof(psmode_enh->params.ps_bitmap)); |
| 1319 | } else if (cmd_action == GET_PS) { |
| 1320 | psmode_enh->action = cpu_to_le16(GET_PS); |
| 1321 | psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); |
| 1322 | cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + |
| 1323 | sizeof(psmode_enh->params.ps_bitmap)); |
| 1324 | } else if (cmd_action == EN_AUTO_PS) { |
| 1325 | psmode_enh->action = cpu_to_le16(EN_AUTO_PS); |
| 1326 | psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); |
| 1327 | cmd_size = S_DS_GEN + sizeof(psmode_enh->action) + |
| 1328 | sizeof(psmode_enh->params.ps_bitmap); |
| 1329 | tlv = (u8 *) cmd + cmd_size; |
| 1330 | if (ps_bitmap & BITMAP_STA_PS) { |
| 1331 | struct mwifiex_adapter *adapter = priv->adapter; |
| 1332 | struct mwifiex_ie_types_ps_param *ps_tlv = |
| 1333 | (struct mwifiex_ie_types_ps_param *) tlv; |
| 1334 | struct mwifiex_ps_param *ps_mode = &ps_tlv->param; |
| 1335 | ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM); |
| 1336 | ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) - |
| 1337 | sizeof(struct mwifiex_ie_types_header)); |
| 1338 | cmd_size += sizeof(*ps_tlv); |
| 1339 | tlv += sizeof(*ps_tlv); |
| 1340 | mwifiex_dbg(priv->adapter, CMD, |
| 1341 | "cmd: PS Command: Enter PS\n"); |
| 1342 | ps_mode->null_pkt_interval = |
| 1343 | cpu_to_le16(adapter->null_pkt_interval); |
| 1344 | ps_mode->multiple_dtims = |
| 1345 | cpu_to_le16(adapter->multiple_dtim); |
| 1346 | ps_mode->bcn_miss_timeout = |
| 1347 | cpu_to_le16(adapter->bcn_miss_time_out); |
| 1348 | ps_mode->local_listen_interval = |
| 1349 | cpu_to_le16(adapter->local_listen_interval); |
| 1350 | ps_mode->adhoc_wake_period = |
| 1351 | cpu_to_le16(adapter->adhoc_awake_period); |
| 1352 | ps_mode->delay_to_ps = |
| 1353 | cpu_to_le16(adapter->delay_to_ps); |
| 1354 | ps_mode->mode = cpu_to_le16(adapter->enhanced_ps_mode); |
| 1355 | |
| 1356 | } |
| 1357 | if (ps_bitmap & BITMAP_AUTO_DS) { |
| 1358 | struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv = |
| 1359 | (struct mwifiex_ie_types_auto_ds_param *) tlv; |
| 1360 | u16 idletime = 0; |
| 1361 | |
| 1362 | auto_ds_tlv->header.type = |
| 1363 | cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM); |
| 1364 | auto_ds_tlv->header.len = |
| 1365 | cpu_to_le16(sizeof(*auto_ds_tlv) - |
| 1366 | sizeof(struct mwifiex_ie_types_header)); |
| 1367 | cmd_size += sizeof(*auto_ds_tlv); |
| 1368 | tlv += sizeof(*auto_ds_tlv); |
| 1369 | if (auto_ds) |
| 1370 | idletime = auto_ds->idle_time; |
| 1371 | mwifiex_dbg(priv->adapter, CMD, |
| 1372 | "cmd: PS Command: Enter Auto Deep Sleep\n"); |
| 1373 | auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime); |
| 1374 | } |
| 1375 | cmd->size = cpu_to_le16(cmd_size); |
| 1376 | } |
| 1377 | return 0; |
| 1378 | } |
| 1379 | |
| 1380 | /* |
| 1381 | * This function handles the command response of an enhanced power mode |
| 1382 | * command. |
| 1383 | * |
| 1384 | * Handling includes changing the header fields into CPU format |
| 1385 | * and setting the current enhanced power mode in driver. |
| 1386 | */ |
| 1387 | int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv, |
| 1388 | struct host_cmd_ds_command *resp, |
| 1389 | struct mwifiex_ds_pm_cfg *pm_cfg) |
| 1390 | { |
| 1391 | struct mwifiex_adapter *adapter = priv->adapter; |
| 1392 | struct host_cmd_ds_802_11_ps_mode_enh *ps_mode = |
| 1393 | &resp->params.psmode_enh; |
| 1394 | uint16_t action = le16_to_cpu(ps_mode->action); |
| 1395 | uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap); |
| 1396 | uint16_t auto_ps_bitmap = |
| 1397 | le16_to_cpu(ps_mode->params.ps_bitmap); |
| 1398 | |
| 1399 | mwifiex_dbg(adapter, INFO, |
| 1400 | "info: %s: PS_MODE cmd reply result=%#x action=%#X\n", |
| 1401 | __func__, resp->result, action); |
| 1402 | if (action == EN_AUTO_PS) { |
| 1403 | if (auto_ps_bitmap & BITMAP_AUTO_DS) { |
| 1404 | mwifiex_dbg(adapter, CMD, |
| 1405 | "cmd: Enabled auto deep sleep\n"); |
| 1406 | priv->adapter->is_deep_sleep = true; |
| 1407 | } |
| 1408 | if (auto_ps_bitmap & BITMAP_STA_PS) { |
| 1409 | mwifiex_dbg(adapter, CMD, |
| 1410 | "cmd: Enabled STA power save\n"); |
| 1411 | if (adapter->sleep_period.period) |
| 1412 | mwifiex_dbg(adapter, CMD, |
| 1413 | "cmd: set to uapsd/pps mode\n"); |
| 1414 | } |
| 1415 | } else if (action == DIS_AUTO_PS) { |
| 1416 | if (ps_bitmap & BITMAP_AUTO_DS) { |
| 1417 | priv->adapter->is_deep_sleep = false; |
| 1418 | mwifiex_dbg(adapter, CMD, |
| 1419 | "cmd: Disabled auto deep sleep\n"); |
| 1420 | } |
| 1421 | if (ps_bitmap & BITMAP_STA_PS) { |
| 1422 | mwifiex_dbg(adapter, CMD, |
| 1423 | "cmd: Disabled STA power save\n"); |
| 1424 | if (adapter->sleep_period.period) { |
| 1425 | adapter->delay_null_pkt = false; |
| 1426 | adapter->tx_lock_flag = false; |
| 1427 | adapter->pps_uapsd_mode = false; |
| 1428 | } |
| 1429 | } |
| 1430 | } else if (action == GET_PS) { |
| 1431 | if (ps_bitmap & BITMAP_STA_PS) |
| 1432 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; |
| 1433 | else |
| 1434 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; |
| 1435 | |
| 1436 | mwifiex_dbg(adapter, CMD, |
| 1437 | "cmd: ps_bitmap=%#x\n", ps_bitmap); |
| 1438 | |
| 1439 | if (pm_cfg) { |
| 1440 | /* This section is for get power save mode */ |
| 1441 | if (ps_bitmap & BITMAP_STA_PS) |
| 1442 | pm_cfg->param.ps_mode = 1; |
| 1443 | else |
| 1444 | pm_cfg->param.ps_mode = 0; |
| 1445 | } |
| 1446 | } |
| 1447 | return 0; |
| 1448 | } |
| 1449 | |
| 1450 | /* |
| 1451 | * This function prepares command to get hardware specifications. |
| 1452 | * |
| 1453 | * Preparation includes - |
| 1454 | * - Setting command ID, action and proper size |
| 1455 | * - Setting permanent address parameter |
| 1456 | * - Ensuring correct endian-ness |
| 1457 | */ |
| 1458 | int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv, |
| 1459 | struct host_cmd_ds_command *cmd) |
| 1460 | { |
| 1461 | struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec; |
| 1462 | |
| 1463 | cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC); |
| 1464 | cmd->size = |
| 1465 | cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN); |
| 1466 | memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN); |
| 1467 | |
| 1468 | return 0; |
| 1469 | } |
| 1470 | |
| 1471 | /* |
| 1472 | * This function handles the command response of get hardware |
| 1473 | * specifications. |
| 1474 | * |
| 1475 | * Handling includes changing the header fields into CPU format |
| 1476 | * and saving/updating the following parameters in driver - |
| 1477 | * - Firmware capability information |
| 1478 | * - Firmware band settings |
| 1479 | * - Ad-hoc start band and channel |
| 1480 | * - Ad-hoc 11n activation status |
| 1481 | * - Firmware release number |
| 1482 | * - Number of antennas |
| 1483 | * - Hardware address |
| 1484 | * - Hardware interface version |
| 1485 | * - Firmware version |
| 1486 | * - Region code |
| 1487 | * - 11n capabilities |
| 1488 | * - MCS support fields |
| 1489 | * - MP end port |
| 1490 | */ |
| 1491 | int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv, |
| 1492 | struct host_cmd_ds_command *resp) |
| 1493 | { |
| 1494 | struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec; |
| 1495 | struct mwifiex_adapter *adapter = priv->adapter; |
| 1496 | struct mwifiex_ie_types_header *tlv; |
| 1497 | struct hw_spec_api_rev *api_rev; |
| 1498 | u16 resp_size, api_id; |
| 1499 | int i, left_len, parsed_len = 0; |
| 1500 | |
| 1501 | adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info); |
| 1502 | |
| 1503 | if (IS_SUPPORT_MULTI_BANDS(adapter)) |
| 1504 | adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter); |
| 1505 | else |
| 1506 | adapter->fw_bands = BAND_B; |
| 1507 | |
| 1508 | adapter->config_bands = adapter->fw_bands; |
| 1509 | |
| 1510 | if (adapter->fw_bands & BAND_A) { |
| 1511 | if (adapter->fw_bands & BAND_GN) { |
| 1512 | adapter->config_bands |= BAND_AN; |
| 1513 | adapter->fw_bands |= BAND_AN; |
| 1514 | } |
| 1515 | if (adapter->fw_bands & BAND_AN) { |
| 1516 | adapter->adhoc_start_band = BAND_A | BAND_AN; |
| 1517 | adapter->adhoc_11n_enabled = true; |
| 1518 | } else { |
| 1519 | adapter->adhoc_start_band = BAND_A; |
| 1520 | } |
| 1521 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A; |
| 1522 | } else if (adapter->fw_bands & BAND_GN) { |
| 1523 | adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN; |
| 1524 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; |
| 1525 | adapter->adhoc_11n_enabled = true; |
| 1526 | } else if (adapter->fw_bands & BAND_G) { |
| 1527 | adapter->adhoc_start_band = BAND_G | BAND_B; |
| 1528 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; |
| 1529 | } else if (adapter->fw_bands & BAND_B) { |
| 1530 | adapter->adhoc_start_band = BAND_B; |
| 1531 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; |
| 1532 | } |
| 1533 | |
| 1534 | adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number); |
| 1535 | adapter->fw_api_ver = (adapter->fw_release_number >> 16) & 0xff; |
| 1536 | adapter->number_of_antenna = |
| 1537 | le16_to_cpu(hw_spec->number_of_antenna) & 0xf; |
| 1538 | |
| 1539 | if (le32_to_cpu(hw_spec->dot_11ac_dev_cap)) { |
| 1540 | adapter->is_hw_11ac_capable = true; |
| 1541 | |
| 1542 | /* Copy 11AC cap */ |
| 1543 | adapter->hw_dot_11ac_dev_cap = |
| 1544 | le32_to_cpu(hw_spec->dot_11ac_dev_cap); |
| 1545 | adapter->usr_dot_11ac_dev_cap_bg = adapter->hw_dot_11ac_dev_cap |
| 1546 | & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK; |
| 1547 | adapter->usr_dot_11ac_dev_cap_a = adapter->hw_dot_11ac_dev_cap |
| 1548 | & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK; |
| 1549 | |
| 1550 | /* Copy 11AC mcs */ |
| 1551 | adapter->hw_dot_11ac_mcs_support = |
| 1552 | le32_to_cpu(hw_spec->dot_11ac_mcs_support); |
| 1553 | adapter->usr_dot_11ac_mcs_support = |
| 1554 | adapter->hw_dot_11ac_mcs_support; |
| 1555 | } else { |
| 1556 | adapter->is_hw_11ac_capable = false; |
| 1557 | } |
| 1558 | |
| 1559 | resp_size = le16_to_cpu(resp->size) - S_DS_GEN; |
| 1560 | if (resp_size > sizeof(struct host_cmd_ds_get_hw_spec)) { |
| 1561 | /* we have variable HW SPEC information */ |
| 1562 | left_len = resp_size - sizeof(struct host_cmd_ds_get_hw_spec); |
| 1563 | while (left_len > sizeof(struct mwifiex_ie_types_header)) { |
| 1564 | tlv = (void *)&hw_spec->tlvs + parsed_len; |
| 1565 | switch (le16_to_cpu(tlv->type)) { |
| 1566 | case TLV_TYPE_API_REV: |
| 1567 | api_rev = (struct hw_spec_api_rev *)tlv; |
| 1568 | api_id = le16_to_cpu(api_rev->api_id); |
| 1569 | switch (api_id) { |
| 1570 | case KEY_API_VER_ID: |
| 1571 | adapter->key_api_major_ver = |
| 1572 | api_rev->major_ver; |
| 1573 | adapter->key_api_minor_ver = |
| 1574 | api_rev->minor_ver; |
| 1575 | mwifiex_dbg(adapter, INFO, |
| 1576 | "key_api v%d.%d\n", |
| 1577 | adapter->key_api_major_ver, |
| 1578 | adapter->key_api_minor_ver); |
| 1579 | break; |
| 1580 | case FW_API_VER_ID: |
| 1581 | adapter->fw_api_ver = |
| 1582 | api_rev->major_ver; |
| 1583 | mwifiex_dbg(adapter, INFO, |
| 1584 | "Firmware api version %d.%d\n", |
| 1585 | adapter->fw_api_ver, |
| 1586 | api_rev->minor_ver); |
| 1587 | break; |
| 1588 | case UAP_FW_API_VER_ID: |
| 1589 | mwifiex_dbg(adapter, INFO, |
| 1590 | "uAP api version %d.%d\n", |
| 1591 | api_rev->major_ver, |
| 1592 | api_rev->minor_ver); |
| 1593 | break; |
| 1594 | case CHANRPT_API_VER_ID: |
| 1595 | mwifiex_dbg(adapter, INFO, |
| 1596 | "channel report api version %d.%d\n", |
| 1597 | api_rev->major_ver, |
| 1598 | api_rev->minor_ver); |
| 1599 | break; |
| 1600 | default: |
| 1601 | mwifiex_dbg(adapter, FATAL, |
| 1602 | "Unknown api_id: %d\n", |
| 1603 | api_id); |
| 1604 | break; |
| 1605 | } |
| 1606 | break; |
| 1607 | default: |
| 1608 | mwifiex_dbg(adapter, FATAL, |
| 1609 | "Unknown GET_HW_SPEC TLV type: %#x\n", |
| 1610 | le16_to_cpu(tlv->type)); |
| 1611 | break; |
| 1612 | } |
| 1613 | parsed_len += le16_to_cpu(tlv->len) + |
| 1614 | sizeof(struct mwifiex_ie_types_header); |
| 1615 | left_len -= le16_to_cpu(tlv->len) + |
| 1616 | sizeof(struct mwifiex_ie_types_header); |
| 1617 | } |
| 1618 | } |
| 1619 | |
| 1620 | mwifiex_dbg(adapter, INFO, |
| 1621 | "info: GET_HW_SPEC: fw_release_number- %#x\n", |
| 1622 | adapter->fw_release_number); |
| 1623 | mwifiex_dbg(adapter, INFO, |
| 1624 | "info: GET_HW_SPEC: permanent addr: %pM\n", |
| 1625 | hw_spec->permanent_addr); |
| 1626 | mwifiex_dbg(adapter, INFO, |
| 1627 | "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n", |
| 1628 | le16_to_cpu(hw_spec->hw_if_version), |
| 1629 | le16_to_cpu(hw_spec->version)); |
| 1630 | |
| 1631 | ether_addr_copy(priv->adapter->perm_addr, hw_spec->permanent_addr); |
| 1632 | adapter->region_code = le16_to_cpu(hw_spec->region_code); |
| 1633 | |
| 1634 | for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++) |
| 1635 | /* Use the region code to search for the index */ |
| 1636 | if (adapter->region_code == region_code_index[i]) |
| 1637 | break; |
| 1638 | |
| 1639 | /* If it's unidentified region code, use the default (world) */ |
| 1640 | if (i >= MWIFIEX_MAX_REGION_CODE) { |
| 1641 | adapter->region_code = 0x00; |
| 1642 | mwifiex_dbg(adapter, WARN, |
| 1643 | "cmd: unknown region code, use default (USA)\n"); |
| 1644 | } |
| 1645 | |
| 1646 | adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap); |
| 1647 | adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support; |
| 1648 | adapter->user_dev_mcs_support = adapter->hw_dev_mcs_support; |
| 1649 | |
| 1650 | if (adapter->if_ops.update_mp_end_port) |
| 1651 | adapter->if_ops.update_mp_end_port(adapter, |
| 1652 | le16_to_cpu(hw_spec->mp_end_port)); |
| 1653 | |
| 1654 | if (adapter->fw_api_ver == MWIFIEX_FW_V15) |
| 1655 | adapter->scan_chan_gap_enabled = true; |
| 1656 | |
| 1657 | return 0; |
| 1658 | } |
| 1659 | |
| 1660 | /* This function handles the command response of hs wakeup reason |
| 1661 | * command. |
| 1662 | */ |
| 1663 | int mwifiex_ret_wakeup_reason(struct mwifiex_private *priv, |
| 1664 | struct host_cmd_ds_command *resp, |
| 1665 | struct host_cmd_ds_wakeup_reason *wakeup_reason) |
| 1666 | { |
| 1667 | wakeup_reason->wakeup_reason = |
| 1668 | resp->params.hs_wakeup_reason.wakeup_reason; |
| 1669 | |
| 1670 | return 0; |
| 1671 | } |