1277b024eSKalle Valo /* 2277b024eSKalle Valo * Marvell Wireless LAN device driver: commands and events 3277b024eSKalle Valo * 4277b024eSKalle Valo * Copyright (C) 2011-2014, Marvell International Ltd. 5277b024eSKalle Valo * 6277b024eSKalle Valo * This software file (the "File") is distributed by Marvell International 7277b024eSKalle Valo * Ltd. under the terms of the GNU General Public License Version 2, June 1991 8277b024eSKalle Valo * (the "License"). You may use, redistribute and/or modify this File in 9277b024eSKalle Valo * accordance with the terms and conditions of the License, a copy of which 10277b024eSKalle Valo * is available by writing to the Free Software Foundation, Inc., 11277b024eSKalle Valo * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12277b024eSKalle Valo * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13277b024eSKalle Valo * 14277b024eSKalle Valo * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 15277b024eSKalle Valo * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 16277b024eSKalle Valo * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 17277b024eSKalle Valo * this warranty disclaimer. 18277b024eSKalle Valo */ 19277b024eSKalle Valo 20277b024eSKalle Valo #include "decl.h" 21277b024eSKalle Valo #include "ioctl.h" 22277b024eSKalle Valo #include "util.h" 23277b024eSKalle Valo #include "fw.h" 24277b024eSKalle Valo #include "main.h" 25277b024eSKalle Valo #include "wmm.h" 26277b024eSKalle Valo #include "11n.h" 27277b024eSKalle Valo #include "11ac.h" 28277b024eSKalle Valo 29277b024eSKalle Valo /* 30277b024eSKalle Valo * This function initializes a command node. 31277b024eSKalle Valo * 32277b024eSKalle Valo * The actual allocation of the node is not done by this function. It only 33277b024eSKalle Valo * initiates a node by filling it with default parameters. Similarly, 34277b024eSKalle Valo * allocation of the different buffers used (IOCTL buffer, data buffer) are 35277b024eSKalle Valo * not done by this function either. 36277b024eSKalle Valo */ 37277b024eSKalle Valo static void 38277b024eSKalle Valo mwifiex_init_cmd_node(struct mwifiex_private *priv, 39277b024eSKalle Valo struct cmd_ctrl_node *cmd_node, 40277b024eSKalle Valo u32 cmd_oid, void *data_buf, bool sync) 41277b024eSKalle Valo { 42277b024eSKalle Valo cmd_node->priv = priv; 43277b024eSKalle Valo cmd_node->cmd_oid = cmd_oid; 44277b024eSKalle Valo if (sync) { 45277b024eSKalle Valo cmd_node->wait_q_enabled = true; 46277b024eSKalle Valo cmd_node->cmd_wait_q_woken = false; 47277b024eSKalle Valo cmd_node->condition = &cmd_node->cmd_wait_q_woken; 48277b024eSKalle Valo } 49277b024eSKalle Valo cmd_node->data_buf = data_buf; 50277b024eSKalle Valo cmd_node->cmd_skb = cmd_node->skb; 51277b024eSKalle Valo } 52277b024eSKalle Valo 53277b024eSKalle Valo /* 54277b024eSKalle Valo * This function returns a command node from the free queue depending upon 55277b024eSKalle Valo * availability. 56277b024eSKalle Valo */ 57277b024eSKalle Valo static struct cmd_ctrl_node * 58277b024eSKalle Valo mwifiex_get_cmd_node(struct mwifiex_adapter *adapter) 59277b024eSKalle Valo { 60277b024eSKalle Valo struct cmd_ctrl_node *cmd_node; 61277b024eSKalle Valo unsigned long flags; 62277b024eSKalle Valo 63277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_free_q_lock, flags); 64277b024eSKalle Valo if (list_empty(&adapter->cmd_free_q)) { 65277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 66277b024eSKalle Valo "GET_CMD_NODE: cmd node not available\n"); 67277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags); 68277b024eSKalle Valo return NULL; 69277b024eSKalle Valo } 70277b024eSKalle Valo cmd_node = list_first_entry(&adapter->cmd_free_q, 71277b024eSKalle Valo struct cmd_ctrl_node, list); 72277b024eSKalle Valo list_del(&cmd_node->list); 73277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags); 74277b024eSKalle Valo 75277b024eSKalle Valo return cmd_node; 76277b024eSKalle Valo } 77277b024eSKalle Valo 78277b024eSKalle Valo /* 79277b024eSKalle Valo * This function cleans up a command node. 80277b024eSKalle Valo * 81277b024eSKalle Valo * The function resets the fields including the buffer pointers. 82277b024eSKalle Valo * This function does not try to free the buffers. They must be 83277b024eSKalle Valo * freed before calling this function. 84277b024eSKalle Valo * 85277b024eSKalle Valo * This function will however call the receive completion callback 86277b024eSKalle Valo * in case a response buffer is still available before resetting 87277b024eSKalle Valo * the pointer. 88277b024eSKalle Valo */ 89277b024eSKalle Valo static void 90277b024eSKalle Valo mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter, 91277b024eSKalle Valo struct cmd_ctrl_node *cmd_node) 92277b024eSKalle Valo { 93277b024eSKalle Valo cmd_node->cmd_oid = 0; 94277b024eSKalle Valo cmd_node->cmd_flag = 0; 95277b024eSKalle Valo cmd_node->data_buf = NULL; 96277b024eSKalle Valo cmd_node->wait_q_enabled = false; 97277b024eSKalle Valo 98277b024eSKalle Valo if (cmd_node->cmd_skb) 99277b024eSKalle Valo skb_trim(cmd_node->cmd_skb, 0); 100277b024eSKalle Valo 101277b024eSKalle Valo if (cmd_node->resp_skb) { 102277b024eSKalle Valo adapter->if_ops.cmdrsp_complete(adapter, cmd_node->resp_skb); 103277b024eSKalle Valo cmd_node->resp_skb = NULL; 104277b024eSKalle Valo } 105277b024eSKalle Valo } 106277b024eSKalle Valo 107277b024eSKalle Valo /* 108277b024eSKalle Valo * This function sends a host command to the firmware. 109277b024eSKalle Valo * 110277b024eSKalle Valo * The function copies the host command into the driver command 111277b024eSKalle Valo * buffer, which will be transferred to the firmware later by the 112277b024eSKalle Valo * main thread. 113277b024eSKalle Valo */ 114277b024eSKalle Valo static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv, 115277b024eSKalle Valo struct host_cmd_ds_command *cmd, 116277b024eSKalle Valo struct mwifiex_ds_misc_cmd *pcmd_ptr) 117277b024eSKalle Valo { 118277b024eSKalle Valo /* Copy the HOST command to command buffer */ 119277b024eSKalle Valo memcpy(cmd, pcmd_ptr->cmd, pcmd_ptr->len); 120277b024eSKalle Valo mwifiex_dbg(priv->adapter, CMD, 121277b024eSKalle Valo "cmd: host cmd size = %d\n", pcmd_ptr->len); 122277b024eSKalle Valo return 0; 123277b024eSKalle Valo } 124277b024eSKalle Valo 125277b024eSKalle Valo /* 126277b024eSKalle Valo * This function downloads a command to the firmware. 127277b024eSKalle Valo * 128277b024eSKalle Valo * The function performs sanity tests, sets the command sequence 129277b024eSKalle Valo * number and size, converts the header fields to CPU format before 130277b024eSKalle Valo * sending. Afterwards, it logs the command ID and action for debugging 131277b024eSKalle Valo * and sets up the command timeout timer. 132277b024eSKalle Valo */ 133277b024eSKalle Valo static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, 134277b024eSKalle Valo struct cmd_ctrl_node *cmd_node) 135277b024eSKalle Valo { 136277b024eSKalle Valo 137277b024eSKalle Valo struct mwifiex_adapter *adapter = priv->adapter; 138277b024eSKalle Valo int ret; 139277b024eSKalle Valo struct host_cmd_ds_command *host_cmd; 140277b024eSKalle Valo uint16_t cmd_code; 141277b024eSKalle Valo uint16_t cmd_size; 142277b024eSKalle Valo unsigned long flags; 143277b024eSKalle Valo __le32 tmp; 144277b024eSKalle Valo 145277b024eSKalle Valo if (!adapter || !cmd_node) 146277b024eSKalle Valo return -1; 147277b024eSKalle Valo 148277b024eSKalle Valo host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 149277b024eSKalle Valo 150277b024eSKalle Valo /* Sanity test */ 151277b024eSKalle Valo if (host_cmd == NULL || host_cmd->size == 0) { 152277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 153277b024eSKalle Valo "DNLD_CMD: host_cmd is null\t" 154277b024eSKalle Valo "or cmd size is 0, not sending\n"); 155277b024eSKalle Valo if (cmd_node->wait_q_enabled) 156277b024eSKalle Valo adapter->cmd_wait_q.status = -1; 157277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, cmd_node); 158277b024eSKalle Valo return -1; 159277b024eSKalle Valo } 160277b024eSKalle Valo 161277b024eSKalle Valo cmd_code = le16_to_cpu(host_cmd->command); 162277b024eSKalle Valo cmd_size = le16_to_cpu(host_cmd->size); 163277b024eSKalle Valo 164277b024eSKalle Valo if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET && 165277b024eSKalle Valo cmd_code != HostCmd_CMD_FUNC_SHUTDOWN && 166277b024eSKalle Valo cmd_code != HostCmd_CMD_FUNC_INIT) { 167277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 168277b024eSKalle Valo "DNLD_CMD: FW in reset state, ignore cmd %#x\n", 169277b024eSKalle Valo cmd_code); 170277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, cmd_node); 171277b024eSKalle Valo queue_work(adapter->workqueue, &adapter->main_work); 172277b024eSKalle Valo return -1; 173277b024eSKalle Valo } 174277b024eSKalle Valo 175277b024eSKalle Valo /* Set command sequence number */ 176277b024eSKalle Valo adapter->seq_num++; 177277b024eSKalle Valo host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO 178277b024eSKalle Valo (adapter->seq_num, 179277b024eSKalle Valo cmd_node->priv->bss_num, 180277b024eSKalle Valo cmd_node->priv->bss_type)); 181277b024eSKalle Valo 182277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); 183277b024eSKalle Valo adapter->curr_cmd = cmd_node; 184277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); 185277b024eSKalle Valo 186277b024eSKalle Valo /* Adjust skb length */ 187277b024eSKalle Valo if (cmd_node->cmd_skb->len > cmd_size) 188277b024eSKalle Valo /* 189277b024eSKalle Valo * cmd_size is less than sizeof(struct host_cmd_ds_command). 190277b024eSKalle Valo * Trim off the unused portion. 191277b024eSKalle Valo */ 192277b024eSKalle Valo skb_trim(cmd_node->cmd_skb, cmd_size); 193277b024eSKalle Valo else if (cmd_node->cmd_skb->len < cmd_size) 194277b024eSKalle Valo /* 195277b024eSKalle Valo * cmd_size is larger than sizeof(struct host_cmd_ds_command) 196277b024eSKalle Valo * because we have appended custom IE TLV. Increase skb length 197277b024eSKalle Valo * accordingly. 198277b024eSKalle Valo */ 199277b024eSKalle Valo skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len); 200277b024eSKalle Valo 201277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 202277b024eSKalle Valo "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", 203277b024eSKalle Valo cmd_code, 204277b024eSKalle Valo le16_to_cpu(*(__le16 *)((u8 *)host_cmd + S_DS_GEN)), 205277b024eSKalle Valo cmd_size, le16_to_cpu(host_cmd->seq_num)); 206277b024eSKalle Valo mwifiex_dbg_dump(adapter, CMD_D, "cmd buffer:", host_cmd, cmd_size); 207277b024eSKalle Valo 208277b024eSKalle Valo if (adapter->iface_type == MWIFIEX_USB) { 209277b024eSKalle Valo tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD); 210277b024eSKalle Valo skb_push(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN); 211277b024eSKalle Valo memcpy(cmd_node->cmd_skb->data, &tmp, MWIFIEX_TYPE_LEN); 212277b024eSKalle Valo adapter->cmd_sent = true; 213277b024eSKalle Valo ret = adapter->if_ops.host_to_card(adapter, 214277b024eSKalle Valo MWIFIEX_USB_EP_CMD_EVENT, 215277b024eSKalle Valo cmd_node->cmd_skb, NULL); 216277b024eSKalle Valo skb_pull(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN); 217277b024eSKalle Valo if (ret == -EBUSY) 218277b024eSKalle Valo cmd_node->cmd_skb = NULL; 219277b024eSKalle Valo } else { 220277b024eSKalle Valo skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN); 221277b024eSKalle Valo ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, 222277b024eSKalle Valo cmd_node->cmd_skb, NULL); 223277b024eSKalle Valo skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN); 224277b024eSKalle Valo } 225277b024eSKalle Valo 226277b024eSKalle Valo if (ret == -1) { 227277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 228277b024eSKalle Valo "DNLD_CMD: host to card failed\n"); 229277b024eSKalle Valo if (adapter->iface_type == MWIFIEX_USB) 230277b024eSKalle Valo adapter->cmd_sent = false; 231277b024eSKalle Valo if (cmd_node->wait_q_enabled) 232277b024eSKalle Valo adapter->cmd_wait_q.status = -1; 233277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); 234277b024eSKalle Valo 235277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); 236277b024eSKalle Valo adapter->curr_cmd = NULL; 237277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); 238277b024eSKalle Valo 239277b024eSKalle Valo adapter->dbg.num_cmd_host_to_card_failure++; 240277b024eSKalle Valo return -1; 241277b024eSKalle Valo } 242277b024eSKalle Valo 243277b024eSKalle Valo /* Save the last command id and action to debug log */ 244277b024eSKalle Valo adapter->dbg.last_cmd_index = 245277b024eSKalle Valo (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM; 246277b024eSKalle Valo adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code; 247277b024eSKalle Valo adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] = 248277b024eSKalle Valo le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)); 249277b024eSKalle Valo 250277b024eSKalle Valo /* Clear BSS_NO_BITS from HostCmd */ 251277b024eSKalle Valo cmd_code &= HostCmd_CMD_ID_MASK; 252277b024eSKalle Valo 253277b024eSKalle Valo /* Setup the timer after transmit command */ 254277b024eSKalle Valo mod_timer(&adapter->cmd_timer, 255277b024eSKalle Valo jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S)); 256277b024eSKalle Valo 257277b024eSKalle Valo return 0; 258277b024eSKalle Valo } 259277b024eSKalle Valo 260277b024eSKalle Valo /* 261277b024eSKalle Valo * This function downloads a sleep confirm command to the firmware. 262277b024eSKalle Valo * 263277b024eSKalle Valo * The function performs sanity tests, sets the command sequence 264277b024eSKalle Valo * number and size, converts the header fields to CPU format before 265277b024eSKalle Valo * sending. 266277b024eSKalle Valo * 267277b024eSKalle Valo * No responses are needed for sleep confirm command. 268277b024eSKalle Valo */ 269277b024eSKalle Valo static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter) 270277b024eSKalle Valo { 271277b024eSKalle Valo int ret; 272277b024eSKalle Valo struct mwifiex_private *priv; 273277b024eSKalle Valo struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = 274277b024eSKalle Valo (struct mwifiex_opt_sleep_confirm *) 275277b024eSKalle Valo adapter->sleep_cfm->data; 276277b024eSKalle Valo struct sk_buff *sleep_cfm_tmp; 277277b024eSKalle Valo __le32 tmp; 278277b024eSKalle Valo 279277b024eSKalle Valo priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 280277b024eSKalle Valo 281277b024eSKalle Valo adapter->seq_num++; 282277b024eSKalle Valo sleep_cfm_buf->seq_num = 283277b024eSKalle Valo cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO 284277b024eSKalle Valo (adapter->seq_num, priv->bss_num, 285277b024eSKalle Valo priv->bss_type))); 286277b024eSKalle Valo 287277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 288277b024eSKalle Valo "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", 289277b024eSKalle Valo le16_to_cpu(sleep_cfm_buf->command), 290277b024eSKalle Valo le16_to_cpu(sleep_cfm_buf->action), 291277b024eSKalle Valo le16_to_cpu(sleep_cfm_buf->size), 292277b024eSKalle Valo le16_to_cpu(sleep_cfm_buf->seq_num)); 293277b024eSKalle Valo mwifiex_dbg_dump(adapter, CMD_D, "SLEEP_CFM buffer: ", sleep_cfm_buf, 294277b024eSKalle Valo le16_to_cpu(sleep_cfm_buf->size)); 295277b024eSKalle Valo 296277b024eSKalle Valo if (adapter->iface_type == MWIFIEX_USB) { 297277b024eSKalle Valo sleep_cfm_tmp = 298277b024eSKalle Valo dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) 299277b024eSKalle Valo + MWIFIEX_TYPE_LEN); 300277b024eSKalle Valo skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm) 301277b024eSKalle Valo + MWIFIEX_TYPE_LEN); 302277b024eSKalle Valo tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD); 303277b024eSKalle Valo memcpy(sleep_cfm_tmp->data, &tmp, MWIFIEX_TYPE_LEN); 304277b024eSKalle Valo memcpy(sleep_cfm_tmp->data + MWIFIEX_TYPE_LEN, 305277b024eSKalle Valo adapter->sleep_cfm->data, 306277b024eSKalle Valo sizeof(struct mwifiex_opt_sleep_confirm)); 307277b024eSKalle Valo ret = adapter->if_ops.host_to_card(adapter, 308277b024eSKalle Valo MWIFIEX_USB_EP_CMD_EVENT, 309277b024eSKalle Valo sleep_cfm_tmp, NULL); 310277b024eSKalle Valo if (ret != -EBUSY) 311277b024eSKalle Valo dev_kfree_skb_any(sleep_cfm_tmp); 312277b024eSKalle Valo } else { 313277b024eSKalle Valo skb_push(adapter->sleep_cfm, INTF_HEADER_LEN); 314277b024eSKalle Valo ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, 315277b024eSKalle Valo adapter->sleep_cfm, NULL); 316277b024eSKalle Valo skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN); 317277b024eSKalle Valo } 318277b024eSKalle Valo 319277b024eSKalle Valo if (ret == -1) { 320277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, "SLEEP_CFM: failed\n"); 321277b024eSKalle Valo adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++; 322277b024eSKalle Valo return -1; 323277b024eSKalle Valo } 324277b024eSKalle Valo 325277b024eSKalle Valo if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl)) 326277b024eSKalle Valo /* Response is not needed for sleep confirm command */ 327277b024eSKalle Valo adapter->ps_state = PS_STATE_SLEEP; 328277b024eSKalle Valo else 329277b024eSKalle Valo adapter->ps_state = PS_STATE_SLEEP_CFM; 330277b024eSKalle Valo 331277b024eSKalle Valo if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl) && 332277b024eSKalle Valo (adapter->is_hs_configured && 333277b024eSKalle Valo !adapter->sleep_period.period)) { 334277b024eSKalle Valo adapter->pm_wakeup_card_req = true; 335277b024eSKalle Valo mwifiex_hs_activated_event(mwifiex_get_priv 336277b024eSKalle Valo (adapter, MWIFIEX_BSS_ROLE_ANY), true); 337277b024eSKalle Valo } 338277b024eSKalle Valo 339277b024eSKalle Valo return ret; 340277b024eSKalle Valo } 341277b024eSKalle Valo 342277b024eSKalle Valo /* 343277b024eSKalle Valo * This function allocates the command buffers and links them to 344277b024eSKalle Valo * the command free queue. 345277b024eSKalle Valo * 346277b024eSKalle Valo * The driver uses a pre allocated number of command buffers, which 347277b024eSKalle Valo * are created at driver initializations and freed at driver cleanup. 348277b024eSKalle Valo * Every command needs to obtain a command buffer from this pool before 349277b024eSKalle Valo * it can be issued. The command free queue lists the command buffers 350277b024eSKalle Valo * currently free to use, while the command pending queue lists the 351277b024eSKalle Valo * command buffers already in use and awaiting handling. Command buffers 352277b024eSKalle Valo * are returned to the free queue after use. 353277b024eSKalle Valo */ 354277b024eSKalle Valo int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter) 355277b024eSKalle Valo { 356277b024eSKalle Valo struct cmd_ctrl_node *cmd_array; 357277b024eSKalle Valo u32 i; 358277b024eSKalle Valo 359277b024eSKalle Valo /* Allocate and initialize struct cmd_ctrl_node */ 360277b024eSKalle Valo cmd_array = kcalloc(MWIFIEX_NUM_OF_CMD_BUFFER, 361277b024eSKalle Valo sizeof(struct cmd_ctrl_node), GFP_KERNEL); 362277b024eSKalle Valo if (!cmd_array) 363277b024eSKalle Valo return -ENOMEM; 364277b024eSKalle Valo 365277b024eSKalle Valo adapter->cmd_pool = cmd_array; 366277b024eSKalle Valo 367277b024eSKalle Valo /* Allocate and initialize command buffers */ 368277b024eSKalle Valo for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { 369277b024eSKalle Valo cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER); 370277b024eSKalle Valo if (!cmd_array[i].skb) { 371277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 372277b024eSKalle Valo "unable to allocate command buffer\n"); 373277b024eSKalle Valo return -ENOMEM; 374277b024eSKalle Valo } 375277b024eSKalle Valo } 376277b024eSKalle Valo 377277b024eSKalle Valo for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) 378277b024eSKalle Valo mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]); 379277b024eSKalle Valo 380277b024eSKalle Valo return 0; 381277b024eSKalle Valo } 382277b024eSKalle Valo 383277b024eSKalle Valo /* 384277b024eSKalle Valo * This function frees the command buffers. 385277b024eSKalle Valo * 386277b024eSKalle Valo * The function calls the completion callback for all the command 387277b024eSKalle Valo * buffers that still have response buffers associated with them. 388277b024eSKalle Valo */ 389277b024eSKalle Valo int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter) 390277b024eSKalle Valo { 391277b024eSKalle Valo struct cmd_ctrl_node *cmd_array; 392277b024eSKalle Valo u32 i; 393277b024eSKalle Valo 394277b024eSKalle Valo /* Need to check if cmd pool is allocated or not */ 395277b024eSKalle Valo if (!adapter->cmd_pool) { 396277b024eSKalle Valo mwifiex_dbg(adapter, FATAL, 397277b024eSKalle Valo "info: FREE_CMD_BUF: cmd_pool is null\n"); 398277b024eSKalle Valo return 0; 399277b024eSKalle Valo } 400277b024eSKalle Valo 401277b024eSKalle Valo cmd_array = adapter->cmd_pool; 402277b024eSKalle Valo 403277b024eSKalle Valo /* Release shared memory buffers */ 404277b024eSKalle Valo for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { 405277b024eSKalle Valo if (cmd_array[i].skb) { 406277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 407277b024eSKalle Valo "cmd: free cmd buffer %d\n", i); 408277b024eSKalle Valo dev_kfree_skb_any(cmd_array[i].skb); 409277b024eSKalle Valo } 410277b024eSKalle Valo if (!cmd_array[i].resp_skb) 411277b024eSKalle Valo continue; 412277b024eSKalle Valo 413277b024eSKalle Valo if (adapter->iface_type == MWIFIEX_USB) 414277b024eSKalle Valo adapter->if_ops.cmdrsp_complete(adapter, 415277b024eSKalle Valo cmd_array[i].resp_skb); 416277b024eSKalle Valo else 417277b024eSKalle Valo dev_kfree_skb_any(cmd_array[i].resp_skb); 418277b024eSKalle Valo } 419277b024eSKalle Valo /* Release struct cmd_ctrl_node */ 420277b024eSKalle Valo if (adapter->cmd_pool) { 421277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 422277b024eSKalle Valo "cmd: free cmd pool\n"); 423277b024eSKalle Valo kfree(adapter->cmd_pool); 424277b024eSKalle Valo adapter->cmd_pool = NULL; 425277b024eSKalle Valo } 426277b024eSKalle Valo 427277b024eSKalle Valo return 0; 428277b024eSKalle Valo } 429277b024eSKalle Valo 430277b024eSKalle Valo /* 431277b024eSKalle Valo * This function handles events generated by firmware. 432277b024eSKalle Valo * 433277b024eSKalle Valo * Event body of events received from firmware are not used (though they are 434277b024eSKalle Valo * saved), only the event ID is used. Some events are re-invoked by 435277b024eSKalle Valo * the driver, with a new event body. 436277b024eSKalle Valo * 437277b024eSKalle Valo * After processing, the function calls the completion callback 438277b024eSKalle Valo * for cleanup. 439277b024eSKalle Valo */ 440277b024eSKalle Valo int mwifiex_process_event(struct mwifiex_adapter *adapter) 441277b024eSKalle Valo { 442277b024eSKalle Valo int ret; 443277b024eSKalle Valo struct mwifiex_private *priv = 444277b024eSKalle Valo mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 445277b024eSKalle Valo struct sk_buff *skb = adapter->event_skb; 446277b024eSKalle Valo u32 eventcause = adapter->event_cause; 447277b024eSKalle Valo struct mwifiex_rxinfo *rx_info; 448277b024eSKalle Valo 449277b024eSKalle Valo /* Save the last event to debug log */ 450277b024eSKalle Valo adapter->dbg.last_event_index = 451277b024eSKalle Valo (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM; 452277b024eSKalle Valo adapter->dbg.last_event[adapter->dbg.last_event_index] = 453277b024eSKalle Valo (u16) eventcause; 454277b024eSKalle Valo 455277b024eSKalle Valo /* Get BSS number and corresponding priv */ 456277b024eSKalle Valo priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause), 457277b024eSKalle Valo EVENT_GET_BSS_TYPE(eventcause)); 458277b024eSKalle Valo if (!priv) 459277b024eSKalle Valo priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 460277b024eSKalle Valo 461277b024eSKalle Valo /* Clear BSS_NO_BITS from event */ 462277b024eSKalle Valo eventcause &= EVENT_ID_MASK; 463277b024eSKalle Valo adapter->event_cause = eventcause; 464277b024eSKalle Valo 465277b024eSKalle Valo if (skb) { 466277b024eSKalle Valo rx_info = MWIFIEX_SKB_RXCB(skb); 467277b024eSKalle Valo memset(rx_info, 0, sizeof(*rx_info)); 468277b024eSKalle Valo rx_info->bss_num = priv->bss_num; 469277b024eSKalle Valo rx_info->bss_type = priv->bss_type; 470277b024eSKalle Valo mwifiex_dbg_dump(adapter, EVT_D, "Event Buf:", 471277b024eSKalle Valo skb->data, skb->len); 472277b024eSKalle Valo } 473277b024eSKalle Valo 474277b024eSKalle Valo mwifiex_dbg(adapter, EVENT, "EVENT: cause: %#x\n", eventcause); 475277b024eSKalle Valo 476277b024eSKalle Valo if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) 477277b024eSKalle Valo ret = mwifiex_process_uap_event(priv); 478277b024eSKalle Valo else 479277b024eSKalle Valo ret = mwifiex_process_sta_event(priv); 480277b024eSKalle Valo 481277b024eSKalle Valo adapter->event_cause = 0; 482277b024eSKalle Valo adapter->event_skb = NULL; 483277b024eSKalle Valo adapter->if_ops.event_complete(adapter, skb); 484277b024eSKalle Valo 485277b024eSKalle Valo return ret; 486277b024eSKalle Valo } 487277b024eSKalle Valo 488277b024eSKalle Valo /* 489277b024eSKalle Valo * This function prepares a command and send it to the firmware. 490277b024eSKalle Valo * 491277b024eSKalle Valo * Preparation includes - 492277b024eSKalle Valo * - Sanity tests to make sure the card is still present or the FW 493277b024eSKalle Valo * is not reset 494277b024eSKalle Valo * - Getting a new command node from the command free queue 495277b024eSKalle Valo * - Initializing the command node for default parameters 496277b024eSKalle Valo * - Fill up the non-default parameters and buffer pointers 497277b024eSKalle Valo * - Add the command to pending queue 498277b024eSKalle Valo */ 499277b024eSKalle Valo int mwifiex_send_cmd(struct mwifiex_private *priv, u16 cmd_no, 500277b024eSKalle Valo u16 cmd_action, u32 cmd_oid, void *data_buf, bool sync) 501277b024eSKalle Valo { 502277b024eSKalle Valo int ret; 503277b024eSKalle Valo struct mwifiex_adapter *adapter = priv->adapter; 504277b024eSKalle Valo struct cmd_ctrl_node *cmd_node; 505277b024eSKalle Valo struct host_cmd_ds_command *cmd_ptr; 506277b024eSKalle Valo 507277b024eSKalle Valo if (!adapter) { 508277b024eSKalle Valo pr_err("PREP_CMD: adapter is NULL\n"); 509277b024eSKalle Valo return -1; 510277b024eSKalle Valo } 511277b024eSKalle Valo 512277b024eSKalle Valo if (adapter->is_suspended) { 513277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 514277b024eSKalle Valo "PREP_CMD: device in suspended state\n"); 515277b024eSKalle Valo return -1; 516277b024eSKalle Valo } 517277b024eSKalle Valo 518277b024eSKalle Valo if (adapter->hs_enabling && cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) { 519277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 520277b024eSKalle Valo "PREP_CMD: host entering sleep state\n"); 521277b024eSKalle Valo return -1; 522277b024eSKalle Valo } 523277b024eSKalle Valo 524277b024eSKalle Valo if (adapter->surprise_removed) { 525277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 526277b024eSKalle Valo "PREP_CMD: card is removed\n"); 527277b024eSKalle Valo return -1; 528277b024eSKalle Valo } 529277b024eSKalle Valo 530277b024eSKalle Valo if (adapter->is_cmd_timedout) { 531277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 532277b024eSKalle Valo "PREP_CMD: FW is in bad state\n"); 533277b024eSKalle Valo return -1; 534277b024eSKalle Valo } 535277b024eSKalle Valo 536277b024eSKalle Valo if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) { 537277b024eSKalle Valo if (cmd_no != HostCmd_CMD_FUNC_INIT) { 538277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 539277b024eSKalle Valo "PREP_CMD: FW in reset state\n"); 540277b024eSKalle Valo return -1; 541277b024eSKalle Valo } 542277b024eSKalle Valo } 543277b024eSKalle Valo 544277b024eSKalle Valo /* Get a new command node */ 545277b024eSKalle Valo cmd_node = mwifiex_get_cmd_node(adapter); 546277b024eSKalle Valo 547277b024eSKalle Valo if (!cmd_node) { 548277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 549277b024eSKalle Valo "PREP_CMD: no free cmd node\n"); 550277b024eSKalle Valo return -1; 551277b024eSKalle Valo } 552277b024eSKalle Valo 553277b024eSKalle Valo /* Initialize the command node */ 554277b024eSKalle Valo mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, data_buf, sync); 555277b024eSKalle Valo 556277b024eSKalle Valo if (!cmd_node->cmd_skb) { 557277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 558277b024eSKalle Valo "PREP_CMD: no free cmd buf\n"); 559277b024eSKalle Valo return -1; 560277b024eSKalle Valo } 561277b024eSKalle Valo 562277b024eSKalle Valo memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)), 563277b024eSKalle Valo 0, sizeof(struct host_cmd_ds_command)); 564277b024eSKalle Valo 565277b024eSKalle Valo cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 566277b024eSKalle Valo cmd_ptr->command = cpu_to_le16(cmd_no); 567277b024eSKalle Valo cmd_ptr->result = 0; 568277b024eSKalle Valo 569277b024eSKalle Valo /* Prepare command */ 570277b024eSKalle Valo if (cmd_no) { 571277b024eSKalle Valo switch (cmd_no) { 572277b024eSKalle Valo case HostCmd_CMD_UAP_SYS_CONFIG: 573277b024eSKalle Valo case HostCmd_CMD_UAP_BSS_START: 574277b024eSKalle Valo case HostCmd_CMD_UAP_BSS_STOP: 575277b024eSKalle Valo case HostCmd_CMD_UAP_STA_DEAUTH: 576277b024eSKalle Valo case HOST_CMD_APCMD_SYS_RESET: 577277b024eSKalle Valo case HOST_CMD_APCMD_STA_LIST: 578277b024eSKalle Valo ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action, 579277b024eSKalle Valo cmd_oid, data_buf, 580277b024eSKalle Valo cmd_ptr); 581277b024eSKalle Valo break; 582277b024eSKalle Valo default: 583277b024eSKalle Valo ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action, 584277b024eSKalle Valo cmd_oid, data_buf, 585277b024eSKalle Valo cmd_ptr); 586277b024eSKalle Valo break; 587277b024eSKalle Valo } 588277b024eSKalle Valo } else { 589277b024eSKalle Valo ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf); 590277b024eSKalle Valo cmd_node->cmd_flag |= CMD_F_HOSTCMD; 591277b024eSKalle Valo } 592277b024eSKalle Valo 593277b024eSKalle Valo /* Return error, since the command preparation failed */ 594277b024eSKalle Valo if (ret) { 595277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 596277b024eSKalle Valo "PREP_CMD: cmd %#x preparation failed\n", 597277b024eSKalle Valo cmd_no); 598277b024eSKalle Valo mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 599277b024eSKalle Valo return -1; 600277b024eSKalle Valo } 601277b024eSKalle Valo 602277b024eSKalle Valo /* Send command */ 603277b024eSKalle Valo if (cmd_no == HostCmd_CMD_802_11_SCAN || 604277b024eSKalle Valo cmd_no == HostCmd_CMD_802_11_SCAN_EXT) { 605277b024eSKalle Valo mwifiex_queue_scan_cmd(priv, cmd_node); 606277b024eSKalle Valo } else { 607277b024eSKalle Valo mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true); 608277b024eSKalle Valo queue_work(adapter->workqueue, &adapter->main_work); 609277b024eSKalle Valo if (cmd_node->wait_q_enabled) 610277b024eSKalle Valo ret = mwifiex_wait_queue_complete(adapter, cmd_node); 611277b024eSKalle Valo } 612277b024eSKalle Valo 613277b024eSKalle Valo return ret; 614277b024eSKalle Valo } 615277b024eSKalle Valo 616277b024eSKalle Valo /* 617277b024eSKalle Valo * This function returns a command to the command free queue. 618277b024eSKalle Valo * 619277b024eSKalle Valo * The function also calls the completion callback if required, before 620277b024eSKalle Valo * cleaning the command node and re-inserting it into the free queue. 621277b024eSKalle Valo */ 622277b024eSKalle Valo void 623277b024eSKalle Valo mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter, 624277b024eSKalle Valo struct cmd_ctrl_node *cmd_node) 625277b024eSKalle Valo { 626277b024eSKalle Valo unsigned long flags; 627277b024eSKalle Valo 628277b024eSKalle Valo if (!cmd_node) 629277b024eSKalle Valo return; 630277b024eSKalle Valo 631277b024eSKalle Valo if (cmd_node->wait_q_enabled) 632277b024eSKalle Valo mwifiex_complete_cmd(adapter, cmd_node); 633277b024eSKalle Valo /* Clean the node */ 634277b024eSKalle Valo mwifiex_clean_cmd_node(adapter, cmd_node); 635277b024eSKalle Valo 636277b024eSKalle Valo /* Insert node into cmd_free_q */ 637277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_free_q_lock, flags); 638277b024eSKalle Valo list_add_tail(&cmd_node->list, &adapter->cmd_free_q); 639277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags); 640277b024eSKalle Valo } 641277b024eSKalle Valo 642277b024eSKalle Valo /* This function reuses a command node. */ 643277b024eSKalle Valo void mwifiex_recycle_cmd_node(struct mwifiex_adapter *adapter, 644277b024eSKalle Valo struct cmd_ctrl_node *cmd_node) 645277b024eSKalle Valo { 646277b024eSKalle Valo struct host_cmd_ds_command *host_cmd = (void *)cmd_node->cmd_skb->data; 647277b024eSKalle Valo 648277b024eSKalle Valo mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 649277b024eSKalle Valo 650277b024eSKalle Valo atomic_dec(&adapter->cmd_pending); 651277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 652277b024eSKalle Valo "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n", 653277b024eSKalle Valo le16_to_cpu(host_cmd->command), 654277b024eSKalle Valo atomic_read(&adapter->cmd_pending)); 655277b024eSKalle Valo } 656277b024eSKalle Valo 657277b024eSKalle Valo /* 658277b024eSKalle Valo * This function queues a command to the command pending queue. 659277b024eSKalle Valo * 660277b024eSKalle Valo * This in effect adds the command to the command list to be executed. 661277b024eSKalle Valo * Exit PS command is handled specially, by placing it always to the 662277b024eSKalle Valo * front of the command queue. 663277b024eSKalle Valo */ 664277b024eSKalle Valo void 665277b024eSKalle Valo mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter, 666277b024eSKalle Valo struct cmd_ctrl_node *cmd_node, u32 add_tail) 667277b024eSKalle Valo { 668277b024eSKalle Valo struct host_cmd_ds_command *host_cmd = NULL; 669277b024eSKalle Valo u16 command; 670277b024eSKalle Valo unsigned long flags; 671277b024eSKalle Valo 672277b024eSKalle Valo host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 673277b024eSKalle Valo if (!host_cmd) { 674277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, "QUEUE_CMD: host_cmd is NULL\n"); 675277b024eSKalle Valo return; 676277b024eSKalle Valo } 677277b024eSKalle Valo 678277b024eSKalle Valo command = le16_to_cpu(host_cmd->command); 679277b024eSKalle Valo 680277b024eSKalle Valo /* Exit_PS command needs to be queued in the header always. */ 681277b024eSKalle Valo if (command == HostCmd_CMD_802_11_PS_MODE_ENH) { 682277b024eSKalle Valo struct host_cmd_ds_802_11_ps_mode_enh *pm = 683277b024eSKalle Valo &host_cmd->params.psmode_enh; 684277b024eSKalle Valo if ((le16_to_cpu(pm->action) == DIS_PS) || 685277b024eSKalle Valo (le16_to_cpu(pm->action) == DIS_AUTO_PS)) { 686277b024eSKalle Valo if (adapter->ps_state != PS_STATE_AWAKE) 687277b024eSKalle Valo add_tail = false; 688277b024eSKalle Valo } 689277b024eSKalle Valo } 690277b024eSKalle Valo 691277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); 692277b024eSKalle Valo if (add_tail) 693277b024eSKalle Valo list_add_tail(&cmd_node->list, &adapter->cmd_pending_q); 694277b024eSKalle Valo else 695277b024eSKalle Valo list_add(&cmd_node->list, &adapter->cmd_pending_q); 696277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); 697277b024eSKalle Valo 698277b024eSKalle Valo atomic_inc(&adapter->cmd_pending); 699277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 700277b024eSKalle Valo "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n", 701277b024eSKalle Valo command, atomic_read(&adapter->cmd_pending)); 702277b024eSKalle Valo } 703277b024eSKalle Valo 704277b024eSKalle Valo /* 705277b024eSKalle Valo * This function executes the next command in command pending queue. 706277b024eSKalle Valo * 707277b024eSKalle Valo * This function will fail if a command is already in processing stage, 708277b024eSKalle Valo * otherwise it will dequeue the first command from the command pending 709277b024eSKalle Valo * queue and send to the firmware. 710277b024eSKalle Valo * 711277b024eSKalle Valo * If the device is currently in host sleep mode, any commands, except the 712277b024eSKalle Valo * host sleep configuration command will de-activate the host sleep. For PS 713277b024eSKalle Valo * mode, the function will put the firmware back to sleep if applicable. 714277b024eSKalle Valo */ 715277b024eSKalle Valo int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter) 716277b024eSKalle Valo { 717277b024eSKalle Valo struct mwifiex_private *priv; 718277b024eSKalle Valo struct cmd_ctrl_node *cmd_node; 719277b024eSKalle Valo int ret = 0; 720277b024eSKalle Valo struct host_cmd_ds_command *host_cmd; 721277b024eSKalle Valo unsigned long cmd_flags; 722277b024eSKalle Valo unsigned long cmd_pending_q_flags; 723277b024eSKalle Valo 724277b024eSKalle Valo /* Check if already in processing */ 725277b024eSKalle Valo if (adapter->curr_cmd) { 726277b024eSKalle Valo mwifiex_dbg(adapter, FATAL, 727277b024eSKalle Valo "EXEC_NEXT_CMD: cmd in processing\n"); 728277b024eSKalle Valo return -1; 729277b024eSKalle Valo } 730277b024eSKalle Valo 731277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); 732277b024eSKalle Valo /* Check if any command is pending */ 733277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags); 734277b024eSKalle Valo if (list_empty(&adapter->cmd_pending_q)) { 735277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, 736277b024eSKalle Valo cmd_pending_q_flags); 737277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 738277b024eSKalle Valo return 0; 739277b024eSKalle Valo } 740277b024eSKalle Valo cmd_node = list_first_entry(&adapter->cmd_pending_q, 741277b024eSKalle Valo struct cmd_ctrl_node, list); 742277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, 743277b024eSKalle Valo cmd_pending_q_flags); 744277b024eSKalle Valo 745277b024eSKalle Valo host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); 746277b024eSKalle Valo priv = cmd_node->priv; 747277b024eSKalle Valo 748277b024eSKalle Valo if (adapter->ps_state != PS_STATE_AWAKE) { 749277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 750277b024eSKalle Valo "%s: cannot send cmd in sleep state,\t" 751277b024eSKalle Valo "this should not happen\n", __func__); 752277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 753277b024eSKalle Valo return ret; 754277b024eSKalle Valo } 755277b024eSKalle Valo 756277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags); 757277b024eSKalle Valo list_del(&cmd_node->list); 758277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, 759277b024eSKalle Valo cmd_pending_q_flags); 760277b024eSKalle Valo 761277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 762277b024eSKalle Valo ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node); 763277b024eSKalle Valo priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 764277b024eSKalle Valo /* Any command sent to the firmware when host is in sleep 765277b024eSKalle Valo * mode should de-configure host sleep. We should skip the 766277b024eSKalle Valo * host sleep configuration command itself though 767277b024eSKalle Valo */ 768277b024eSKalle Valo if (priv && (host_cmd->command != 769277b024eSKalle Valo cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) { 770277b024eSKalle Valo if (adapter->hs_activated) { 771277b024eSKalle Valo adapter->is_hs_configured = false; 772277b024eSKalle Valo mwifiex_hs_activated_event(priv, false); 773277b024eSKalle Valo } 774277b024eSKalle Valo } 775277b024eSKalle Valo 776277b024eSKalle Valo return ret; 777277b024eSKalle Valo } 778277b024eSKalle Valo 779277b024eSKalle Valo /* 780277b024eSKalle Valo * This function handles the command response. 781277b024eSKalle Valo * 782277b024eSKalle Valo * After processing, the function cleans the command node and puts 783277b024eSKalle Valo * it back to the command free queue. 784277b024eSKalle Valo */ 785277b024eSKalle Valo int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter) 786277b024eSKalle Valo { 787277b024eSKalle Valo struct host_cmd_ds_command *resp; 788277b024eSKalle Valo struct mwifiex_private *priv = 789277b024eSKalle Valo mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 790277b024eSKalle Valo int ret = 0; 791277b024eSKalle Valo uint16_t orig_cmdresp_no; 792277b024eSKalle Valo uint16_t cmdresp_no; 793277b024eSKalle Valo uint16_t cmdresp_result; 794277b024eSKalle Valo unsigned long flags; 795277b024eSKalle Valo 796277b024eSKalle Valo /* Now we got response from FW, cancel the command timer */ 797277b024eSKalle Valo del_timer_sync(&adapter->cmd_timer); 798277b024eSKalle Valo 799277b024eSKalle Valo if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) { 800277b024eSKalle Valo resp = (struct host_cmd_ds_command *) adapter->upld_buf; 801277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 802277b024eSKalle Valo "CMD_RESP: NULL curr_cmd, %#x\n", 803277b024eSKalle Valo le16_to_cpu(resp->command)); 804277b024eSKalle Valo return -1; 805277b024eSKalle Valo } 806277b024eSKalle Valo 807277b024eSKalle Valo adapter->is_cmd_timedout = 0; 808277b024eSKalle Valo 809277b024eSKalle Valo resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data; 810277b024eSKalle Valo if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { 811277b024eSKalle Valo /* Copy original response back to response buffer */ 812277b024eSKalle Valo struct mwifiex_ds_misc_cmd *hostcmd; 813277b024eSKalle Valo uint16_t size = le16_to_cpu(resp->size); 814277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 815277b024eSKalle Valo "info: host cmd resp size = %d\n", size); 816277b024eSKalle Valo size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER); 817277b024eSKalle Valo if (adapter->curr_cmd->data_buf) { 818277b024eSKalle Valo hostcmd = adapter->curr_cmd->data_buf; 819277b024eSKalle Valo hostcmd->len = size; 820277b024eSKalle Valo memcpy(hostcmd->cmd, resp, size); 821277b024eSKalle Valo } 822277b024eSKalle Valo } 823277b024eSKalle Valo orig_cmdresp_no = le16_to_cpu(resp->command); 824277b024eSKalle Valo 825277b024eSKalle Valo /* Get BSS number and corresponding priv */ 826277b024eSKalle Valo priv = mwifiex_get_priv_by_id(adapter, 827277b024eSKalle Valo HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)), 828277b024eSKalle Valo HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num))); 829277b024eSKalle Valo if (!priv) 830277b024eSKalle Valo priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 831277b024eSKalle Valo /* Clear RET_BIT from HostCmd */ 832277b024eSKalle Valo resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK); 833277b024eSKalle Valo 834277b024eSKalle Valo cmdresp_no = le16_to_cpu(resp->command); 835277b024eSKalle Valo cmdresp_result = le16_to_cpu(resp->result); 836277b024eSKalle Valo 837277b024eSKalle Valo /* Save the last command response to debug log */ 838277b024eSKalle Valo adapter->dbg.last_cmd_resp_index = 839277b024eSKalle Valo (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM; 840277b024eSKalle Valo adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] = 841277b024eSKalle Valo orig_cmdresp_no; 842277b024eSKalle Valo 843277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 844277b024eSKalle Valo "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n", 845277b024eSKalle Valo orig_cmdresp_no, cmdresp_result, 846277b024eSKalle Valo le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num)); 847277b024eSKalle Valo mwifiex_dbg_dump(adapter, CMD_D, "CMD_RESP buffer:", resp, 848277b024eSKalle Valo le16_to_cpu(resp->size)); 849277b024eSKalle Valo 850277b024eSKalle Valo if (!(orig_cmdresp_no & HostCmd_RET_BIT)) { 851277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, "CMD_RESP: invalid cmd resp\n"); 852277b024eSKalle Valo if (adapter->curr_cmd->wait_q_enabled) 853277b024eSKalle Valo adapter->cmd_wait_q.status = -1; 854277b024eSKalle Valo 855277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); 856277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); 857277b024eSKalle Valo adapter->curr_cmd = NULL; 858277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); 859277b024eSKalle Valo return -1; 860277b024eSKalle Valo } 861277b024eSKalle Valo 862277b024eSKalle Valo if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { 863277b024eSKalle Valo adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD; 864277b024eSKalle Valo if ((cmdresp_result == HostCmd_RESULT_OK) && 865277b024eSKalle Valo (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH)) 866277b024eSKalle Valo ret = mwifiex_ret_802_11_hs_cfg(priv, resp); 867277b024eSKalle Valo } else { 868277b024eSKalle Valo /* handle response */ 869277b024eSKalle Valo ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp); 870277b024eSKalle Valo } 871277b024eSKalle Valo 872277b024eSKalle Valo /* Check init command response */ 873277b024eSKalle Valo if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { 874277b024eSKalle Valo if (ret) { 875277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 876277b024eSKalle Valo "%s: cmd %#x failed during\t" 877277b024eSKalle Valo "initialization\n", __func__, cmdresp_no); 878277b024eSKalle Valo mwifiex_init_fw_complete(adapter); 879277b024eSKalle Valo return -1; 880277b024eSKalle Valo } else if (adapter->last_init_cmd == cmdresp_no) 881277b024eSKalle Valo adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE; 882277b024eSKalle Valo } 883277b024eSKalle Valo 884277b024eSKalle Valo if (adapter->curr_cmd) { 885277b024eSKalle Valo if (adapter->curr_cmd->wait_q_enabled) 886277b024eSKalle Valo adapter->cmd_wait_q.status = ret; 887277b024eSKalle Valo 888277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); 889277b024eSKalle Valo 890277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); 891277b024eSKalle Valo adapter->curr_cmd = NULL; 892277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); 893277b024eSKalle Valo } 894277b024eSKalle Valo 895277b024eSKalle Valo return ret; 896277b024eSKalle Valo } 897277b024eSKalle Valo 898277b024eSKalle Valo /* 899277b024eSKalle Valo * This function handles the timeout of command sending. 900277b024eSKalle Valo * 901277b024eSKalle Valo * It will re-send the same command again. 902277b024eSKalle Valo */ 903277b024eSKalle Valo void 904277b024eSKalle Valo mwifiex_cmd_timeout_func(unsigned long function_context) 905277b024eSKalle Valo { 906277b024eSKalle Valo struct mwifiex_adapter *adapter = 907277b024eSKalle Valo (struct mwifiex_adapter *) function_context; 908277b024eSKalle Valo struct cmd_ctrl_node *cmd_node; 909277b024eSKalle Valo 910277b024eSKalle Valo adapter->is_cmd_timedout = 1; 911277b024eSKalle Valo if (!adapter->curr_cmd) { 912277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 913277b024eSKalle Valo "cmd: empty curr_cmd\n"); 914277b024eSKalle Valo return; 915277b024eSKalle Valo } 916277b024eSKalle Valo cmd_node = adapter->curr_cmd; 917277b024eSKalle Valo if (cmd_node) { 918277b024eSKalle Valo adapter->dbg.timeout_cmd_id = 919277b024eSKalle Valo adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index]; 920277b024eSKalle Valo adapter->dbg.timeout_cmd_act = 921277b024eSKalle Valo adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index]; 922277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 923277b024eSKalle Valo "%s: Timeout cmd id = %#x, act = %#x\n", __func__, 924277b024eSKalle Valo adapter->dbg.timeout_cmd_id, 925277b024eSKalle Valo adapter->dbg.timeout_cmd_act); 926277b024eSKalle Valo 927277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 928277b024eSKalle Valo "num_data_h2c_failure = %d\n", 929277b024eSKalle Valo adapter->dbg.num_tx_host_to_card_failure); 930277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 931277b024eSKalle Valo "num_cmd_h2c_failure = %d\n", 932277b024eSKalle Valo adapter->dbg.num_cmd_host_to_card_failure); 933277b024eSKalle Valo 934277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 935277b024eSKalle Valo "is_cmd_timedout = %d\n", 936277b024eSKalle Valo adapter->is_cmd_timedout); 937277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 938277b024eSKalle Valo "num_tx_timeout = %d\n", 939277b024eSKalle Valo adapter->dbg.num_tx_timeout); 940277b024eSKalle Valo 941277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 942277b024eSKalle Valo "last_cmd_index = %d\n", 943277b024eSKalle Valo adapter->dbg.last_cmd_index); 944277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 945277b024eSKalle Valo "last_cmd_id: %*ph\n", 946277b024eSKalle Valo (int)sizeof(adapter->dbg.last_cmd_id), 947277b024eSKalle Valo adapter->dbg.last_cmd_id); 948277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 949277b024eSKalle Valo "last_cmd_act: %*ph\n", 950277b024eSKalle Valo (int)sizeof(adapter->dbg.last_cmd_act), 951277b024eSKalle Valo adapter->dbg.last_cmd_act); 952277b024eSKalle Valo 953277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 954277b024eSKalle Valo "last_cmd_resp_index = %d\n", 955277b024eSKalle Valo adapter->dbg.last_cmd_resp_index); 956277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 957277b024eSKalle Valo "last_cmd_resp_id: %*ph\n", 958277b024eSKalle Valo (int)sizeof(adapter->dbg.last_cmd_resp_id), 959277b024eSKalle Valo adapter->dbg.last_cmd_resp_id); 960277b024eSKalle Valo 961277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 962277b024eSKalle Valo "last_event_index = %d\n", 963277b024eSKalle Valo adapter->dbg.last_event_index); 964277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 965277b024eSKalle Valo "last_event: %*ph\n", 966277b024eSKalle Valo (int)sizeof(adapter->dbg.last_event), 967277b024eSKalle Valo adapter->dbg.last_event); 968277b024eSKalle Valo 969277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 970277b024eSKalle Valo "data_sent=%d cmd_sent=%d\n", 971277b024eSKalle Valo adapter->data_sent, adapter->cmd_sent); 972277b024eSKalle Valo 973277b024eSKalle Valo mwifiex_dbg(adapter, MSG, 974277b024eSKalle Valo "ps_mode=%d ps_state=%d\n", 975277b024eSKalle Valo adapter->ps_mode, adapter->ps_state); 976277b024eSKalle Valo 977277b024eSKalle Valo if (cmd_node->wait_q_enabled) { 978277b024eSKalle Valo adapter->cmd_wait_q.status = -ETIMEDOUT; 979277b024eSKalle Valo mwifiex_cancel_pending_ioctl(adapter); 980277b024eSKalle Valo } 981277b024eSKalle Valo } 982277b024eSKalle Valo if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { 983277b024eSKalle Valo mwifiex_init_fw_complete(adapter); 984277b024eSKalle Valo return; 985277b024eSKalle Valo } 986277b024eSKalle Valo 987277b024eSKalle Valo if (adapter->if_ops.device_dump) 988277b024eSKalle Valo adapter->if_ops.device_dump(adapter); 989277b024eSKalle Valo 990277b024eSKalle Valo if (adapter->if_ops.card_reset) 991277b024eSKalle Valo adapter->if_ops.card_reset(adapter); 992277b024eSKalle Valo } 993277b024eSKalle Valo 994277b024eSKalle Valo /* 995277b024eSKalle Valo * This function cancels all the pending commands. 996277b024eSKalle Valo * 997277b024eSKalle Valo * The current command, all commands in command pending queue and all scan 998277b024eSKalle Valo * commands in scan pending queue are cancelled. All the completion callbacks 999277b024eSKalle Valo * are called with failure status to ensure cleanup. 1000277b024eSKalle Valo */ 1001277b024eSKalle Valo void 1002277b024eSKalle Valo mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter) 1003277b024eSKalle Valo { 1004277b024eSKalle Valo struct cmd_ctrl_node *cmd_node = NULL, *tmp_node; 1005277b024eSKalle Valo unsigned long flags, cmd_flags; 1006277b024eSKalle Valo struct mwifiex_private *priv; 1007277b024eSKalle Valo int i; 1008277b024eSKalle Valo 1009277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); 1010277b024eSKalle Valo /* Cancel current cmd */ 1011277b024eSKalle Valo if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) { 1012277b024eSKalle Valo adapter->curr_cmd->wait_q_enabled = false; 1013277b024eSKalle Valo adapter->cmd_wait_q.status = -1; 1014277b024eSKalle Valo mwifiex_complete_cmd(adapter, adapter->curr_cmd); 1015277b024eSKalle Valo /* no recycle probably wait for response */ 1016277b024eSKalle Valo } 1017277b024eSKalle Valo /* Cancel all pending command */ 1018277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); 1019277b024eSKalle Valo list_for_each_entry_safe(cmd_node, tmp_node, 1020277b024eSKalle Valo &adapter->cmd_pending_q, list) { 1021277b024eSKalle Valo list_del(&cmd_node->list); 1022277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); 1023277b024eSKalle Valo 1024277b024eSKalle Valo if (cmd_node->wait_q_enabled) 1025277b024eSKalle Valo adapter->cmd_wait_q.status = -1; 1026277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, cmd_node); 1027277b024eSKalle Valo spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); 1028277b024eSKalle Valo } 1029277b024eSKalle Valo spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); 1030277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 1031277b024eSKalle Valo 1032277b024eSKalle Valo /* Cancel all pending scan command */ 1033277b024eSKalle Valo spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); 1034277b024eSKalle Valo list_for_each_entry_safe(cmd_node, tmp_node, 1035277b024eSKalle Valo &adapter->scan_pending_q, list) { 1036277b024eSKalle Valo list_del(&cmd_node->list); 1037277b024eSKalle Valo 1038277b024eSKalle Valo cmd_node->wait_q_enabled = false; 1039277b024eSKalle Valo mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 1040277b024eSKalle Valo } 1041277b024eSKalle Valo spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); 1042277b024eSKalle Valo 1043277b024eSKalle Valo if (adapter->scan_processing) { 1044277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); 1045277b024eSKalle Valo adapter->scan_processing = false; 1046277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 1047277b024eSKalle Valo for (i = 0; i < adapter->priv_num; i++) { 1048277b024eSKalle Valo priv = adapter->priv[i]; 1049277b024eSKalle Valo if (!priv) 1050277b024eSKalle Valo continue; 1051277b024eSKalle Valo if (priv->scan_request) { 1052277b024eSKalle Valo mwifiex_dbg(adapter, WARN, "info: aborting scan\n"); 1053277b024eSKalle Valo cfg80211_scan_done(priv->scan_request, 1); 1054277b024eSKalle Valo priv->scan_request = NULL; 1055277b024eSKalle Valo } 1056277b024eSKalle Valo } 1057277b024eSKalle Valo } 1058277b024eSKalle Valo } 1059277b024eSKalle Valo 1060277b024eSKalle Valo /* 1061277b024eSKalle Valo * This function cancels all pending commands that matches with 1062277b024eSKalle Valo * the given IOCTL request. 1063277b024eSKalle Valo * 1064277b024eSKalle Valo * Both the current command buffer and the pending command queue are 1065277b024eSKalle Valo * searched for matching IOCTL request. The completion callback of 1066277b024eSKalle Valo * the matched command is called with failure status to ensure cleanup. 1067277b024eSKalle Valo * In case of scan commands, all pending commands in scan pending queue 1068277b024eSKalle Valo * are cancelled. 1069277b024eSKalle Valo */ 1070277b024eSKalle Valo void 1071277b024eSKalle Valo mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter) 1072277b024eSKalle Valo { 1073277b024eSKalle Valo struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL; 1074277b024eSKalle Valo unsigned long cmd_flags; 1075277b024eSKalle Valo unsigned long scan_pending_q_flags; 1076277b024eSKalle Valo struct mwifiex_private *priv; 1077277b024eSKalle Valo int i; 1078277b024eSKalle Valo 1079277b024eSKalle Valo if ((adapter->curr_cmd) && 1080277b024eSKalle Valo (adapter->curr_cmd->wait_q_enabled)) { 1081277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); 1082277b024eSKalle Valo cmd_node = adapter->curr_cmd; 1083277b024eSKalle Valo /* setting curr_cmd to NULL is quite dangerous, because 1084277b024eSKalle Valo * mwifiex_process_cmdresp checks curr_cmd to be != NULL 1085277b024eSKalle Valo * at the beginning then relies on it and dereferences 1086277b024eSKalle Valo * it at will 1087277b024eSKalle Valo * this probably works since mwifiex_cmd_timeout_func 1088277b024eSKalle Valo * is the only caller of this function and responses 1089277b024eSKalle Valo * at that point 1090277b024eSKalle Valo */ 1091277b024eSKalle Valo adapter->curr_cmd = NULL; 1092277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 1093277b024eSKalle Valo 1094277b024eSKalle Valo mwifiex_recycle_cmd_node(adapter, cmd_node); 1095277b024eSKalle Valo } 1096277b024eSKalle Valo 1097277b024eSKalle Valo /* Cancel all pending scan command */ 1098277b024eSKalle Valo spin_lock_irqsave(&adapter->scan_pending_q_lock, 1099277b024eSKalle Valo scan_pending_q_flags); 1100277b024eSKalle Valo list_for_each_entry_safe(cmd_node, tmp_node, 1101277b024eSKalle Valo &adapter->scan_pending_q, list) { 1102277b024eSKalle Valo list_del(&cmd_node->list); 1103277b024eSKalle Valo cmd_node->wait_q_enabled = false; 1104277b024eSKalle Valo mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 1105277b024eSKalle Valo } 1106277b024eSKalle Valo spin_unlock_irqrestore(&adapter->scan_pending_q_lock, 1107277b024eSKalle Valo scan_pending_q_flags); 1108277b024eSKalle Valo 1109277b024eSKalle Valo if (adapter->scan_processing) { 1110277b024eSKalle Valo spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); 1111277b024eSKalle Valo adapter->scan_processing = false; 1112277b024eSKalle Valo spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); 1113277b024eSKalle Valo for (i = 0; i < adapter->priv_num; i++) { 1114277b024eSKalle Valo priv = adapter->priv[i]; 1115277b024eSKalle Valo if (!priv) 1116277b024eSKalle Valo continue; 1117277b024eSKalle Valo if (priv->scan_request) { 1118277b024eSKalle Valo mwifiex_dbg(adapter, WARN, "info: aborting scan\n"); 1119277b024eSKalle Valo cfg80211_scan_done(priv->scan_request, 1); 1120277b024eSKalle Valo priv->scan_request = NULL; 1121277b024eSKalle Valo } 1122277b024eSKalle Valo } 1123277b024eSKalle Valo } 1124277b024eSKalle Valo } 1125277b024eSKalle Valo 1126277b024eSKalle Valo /* 1127277b024eSKalle Valo * This function sends the sleep confirm command to firmware, if 1128277b024eSKalle Valo * possible. 1129277b024eSKalle Valo * 1130277b024eSKalle Valo * The sleep confirm command cannot be issued if command response, 1131277b024eSKalle Valo * data response or event response is awaiting handling, or if we 1132277b024eSKalle Valo * are in the middle of sending a command, or expecting a command 1133277b024eSKalle Valo * response. 1134277b024eSKalle Valo */ 1135277b024eSKalle Valo void 1136277b024eSKalle Valo mwifiex_check_ps_cond(struct mwifiex_adapter *adapter) 1137277b024eSKalle Valo { 1138277b024eSKalle Valo if (!adapter->cmd_sent && 1139277b024eSKalle Valo !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter)) 1140277b024eSKalle Valo mwifiex_dnld_sleep_confirm_cmd(adapter); 1141277b024eSKalle Valo else 1142277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1143277b024eSKalle Valo "cmd: Delay Sleep Confirm (%s%s%s)\n", 1144277b024eSKalle Valo (adapter->cmd_sent) ? "D" : "", 1145277b024eSKalle Valo (adapter->curr_cmd) ? "C" : "", 1146277b024eSKalle Valo (IS_CARD_RX_RCVD(adapter)) ? "R" : ""); 1147277b024eSKalle Valo } 1148277b024eSKalle Valo 1149277b024eSKalle Valo /* 1150277b024eSKalle Valo * This function sends a Host Sleep activated event to applications. 1151277b024eSKalle Valo * 1152277b024eSKalle Valo * This event is generated by the driver, with a blank event body. 1153277b024eSKalle Valo */ 1154277b024eSKalle Valo void 1155277b024eSKalle Valo mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated) 1156277b024eSKalle Valo { 1157277b024eSKalle Valo if (activated) { 1158277b024eSKalle Valo if (priv->adapter->is_hs_configured) { 1159277b024eSKalle Valo priv->adapter->hs_activated = true; 1160277b024eSKalle Valo mwifiex_update_rxreor_flags(priv->adapter, 1161277b024eSKalle Valo RXREOR_FORCE_NO_DROP); 1162277b024eSKalle Valo mwifiex_dbg(priv->adapter, EVENT, 1163277b024eSKalle Valo "event: hs_activated\n"); 1164277b024eSKalle Valo priv->adapter->hs_activate_wait_q_woken = true; 1165277b024eSKalle Valo wake_up_interruptible( 1166277b024eSKalle Valo &priv->adapter->hs_activate_wait_q); 1167277b024eSKalle Valo } else { 1168277b024eSKalle Valo mwifiex_dbg(priv->adapter, EVENT, 1169277b024eSKalle Valo "event: HS not configured\n"); 1170277b024eSKalle Valo } 1171277b024eSKalle Valo } else { 1172277b024eSKalle Valo mwifiex_dbg(priv->adapter, EVENT, 1173277b024eSKalle Valo "event: hs_deactivated\n"); 1174277b024eSKalle Valo priv->adapter->hs_activated = false; 1175277b024eSKalle Valo } 1176277b024eSKalle Valo } 1177277b024eSKalle Valo 1178277b024eSKalle Valo /* 1179277b024eSKalle Valo * This function handles the command response of a Host Sleep configuration 1180277b024eSKalle Valo * command. 1181277b024eSKalle Valo * 1182277b024eSKalle Valo * Handling includes changing the header fields into CPU format 1183277b024eSKalle Valo * and setting the current host sleep activation status in driver. 1184277b024eSKalle Valo * 1185277b024eSKalle Valo * In case host sleep status change, the function generates an event to 1186277b024eSKalle Valo * notify the applications. 1187277b024eSKalle Valo */ 1188277b024eSKalle Valo int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv, 1189277b024eSKalle Valo struct host_cmd_ds_command *resp) 1190277b024eSKalle Valo { 1191277b024eSKalle Valo struct mwifiex_adapter *adapter = priv->adapter; 1192277b024eSKalle Valo struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg = 1193277b024eSKalle Valo &resp->params.opt_hs_cfg; 1194277b024eSKalle Valo uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions); 1195277b024eSKalle Valo 1196277b024eSKalle Valo if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) && 1197277b024eSKalle Valo adapter->iface_type != MWIFIEX_USB) { 1198277b024eSKalle Valo mwifiex_hs_activated_event(priv, true); 1199277b024eSKalle Valo return 0; 1200277b024eSKalle Valo } else { 1201277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1202277b024eSKalle Valo "cmd: CMD_RESP: HS_CFG cmd reply\t" 1203277b024eSKalle Valo " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n", 1204277b024eSKalle Valo resp->result, conditions, 1205277b024eSKalle Valo phs_cfg->params.hs_config.gpio, 1206277b024eSKalle Valo phs_cfg->params.hs_config.gap); 1207277b024eSKalle Valo } 1208277b024eSKalle Valo if (conditions != HS_CFG_CANCEL) { 1209277b024eSKalle Valo adapter->is_hs_configured = true; 1210277b024eSKalle Valo if (adapter->iface_type == MWIFIEX_USB) 1211277b024eSKalle Valo mwifiex_hs_activated_event(priv, true); 1212277b024eSKalle Valo } else { 1213277b024eSKalle Valo adapter->is_hs_configured = false; 1214277b024eSKalle Valo if (adapter->hs_activated) 1215277b024eSKalle Valo mwifiex_hs_activated_event(priv, false); 1216277b024eSKalle Valo } 1217277b024eSKalle Valo 1218277b024eSKalle Valo return 0; 1219277b024eSKalle Valo } 1220277b024eSKalle Valo 1221277b024eSKalle Valo /* 1222277b024eSKalle Valo * This function wakes up the adapter and generates a Host Sleep 1223277b024eSKalle Valo * cancel event on receiving the power up interrupt. 1224277b024eSKalle Valo */ 1225277b024eSKalle Valo void 1226277b024eSKalle Valo mwifiex_process_hs_config(struct mwifiex_adapter *adapter) 1227277b024eSKalle Valo { 1228277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1229277b024eSKalle Valo "info: %s: auto cancelling host sleep\t" 1230277b024eSKalle Valo "since there is interrupt from the firmware\n", 1231277b024eSKalle Valo __func__); 1232277b024eSKalle Valo 1233277b024eSKalle Valo adapter->if_ops.wakeup(adapter); 1234277b024eSKalle Valo adapter->hs_activated = false; 1235277b024eSKalle Valo adapter->is_hs_configured = false; 1236277b024eSKalle Valo adapter->is_suspended = false; 1237277b024eSKalle Valo mwifiex_hs_activated_event(mwifiex_get_priv(adapter, 1238277b024eSKalle Valo MWIFIEX_BSS_ROLE_ANY), 1239277b024eSKalle Valo false); 1240277b024eSKalle Valo } 1241277b024eSKalle Valo EXPORT_SYMBOL_GPL(mwifiex_process_hs_config); 1242277b024eSKalle Valo 1243277b024eSKalle Valo /* 1244277b024eSKalle Valo * This function handles the command response of a sleep confirm command. 1245277b024eSKalle Valo * 1246277b024eSKalle Valo * The function sets the card state to SLEEP if the response indicates success. 1247277b024eSKalle Valo */ 1248277b024eSKalle Valo void 1249277b024eSKalle Valo mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter, 1250277b024eSKalle Valo u8 *pbuf, u32 upld_len) 1251277b024eSKalle Valo { 1252277b024eSKalle Valo struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf; 1253277b024eSKalle Valo struct mwifiex_private *priv = 1254277b024eSKalle Valo mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 1255277b024eSKalle Valo uint16_t result = le16_to_cpu(cmd->result); 1256277b024eSKalle Valo uint16_t command = le16_to_cpu(cmd->command); 1257277b024eSKalle Valo uint16_t seq_num = le16_to_cpu(cmd->seq_num); 1258277b024eSKalle Valo 1259277b024eSKalle Valo if (!upld_len) { 1260277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 1261277b024eSKalle Valo "%s: cmd size is 0\n", __func__); 1262277b024eSKalle Valo return; 1263277b024eSKalle Valo } 1264277b024eSKalle Valo 1265277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1266277b024eSKalle Valo "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n", 1267277b024eSKalle Valo command, result, le16_to_cpu(cmd->size), seq_num); 1268277b024eSKalle Valo 1269277b024eSKalle Valo /* Get BSS number and corresponding priv */ 1270277b024eSKalle Valo priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num), 1271277b024eSKalle Valo HostCmd_GET_BSS_TYPE(seq_num)); 1272277b024eSKalle Valo if (!priv) 1273277b024eSKalle Valo priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 1274277b024eSKalle Valo 1275277b024eSKalle Valo /* Update sequence number */ 1276277b024eSKalle Valo seq_num = HostCmd_GET_SEQ_NO(seq_num); 1277277b024eSKalle Valo /* Clear RET_BIT from HostCmd */ 1278277b024eSKalle Valo command &= HostCmd_CMD_ID_MASK; 1279277b024eSKalle Valo 1280277b024eSKalle Valo if (command != HostCmd_CMD_802_11_PS_MODE_ENH) { 1281277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 1282277b024eSKalle Valo "%s: rcvd unexpected resp for cmd %#x, result = %x\n", 1283277b024eSKalle Valo __func__, command, result); 1284277b024eSKalle Valo return; 1285277b024eSKalle Valo } 1286277b024eSKalle Valo 1287277b024eSKalle Valo if (result) { 1288277b024eSKalle Valo mwifiex_dbg(adapter, ERROR, 1289277b024eSKalle Valo "%s: sleep confirm cmd failed\n", 1290277b024eSKalle Valo __func__); 1291277b024eSKalle Valo adapter->pm_wakeup_card_req = false; 1292277b024eSKalle Valo adapter->ps_state = PS_STATE_AWAKE; 1293277b024eSKalle Valo return; 1294277b024eSKalle Valo } 1295277b024eSKalle Valo adapter->pm_wakeup_card_req = true; 1296277b024eSKalle Valo if (adapter->is_hs_configured) 1297277b024eSKalle Valo mwifiex_hs_activated_event(mwifiex_get_priv 1298277b024eSKalle Valo (adapter, MWIFIEX_BSS_ROLE_ANY), 1299277b024eSKalle Valo true); 1300277b024eSKalle Valo adapter->ps_state = PS_STATE_SLEEP; 1301277b024eSKalle Valo cmd->command = cpu_to_le16(command); 1302277b024eSKalle Valo cmd->seq_num = cpu_to_le16(seq_num); 1303277b024eSKalle Valo } 1304277b024eSKalle Valo EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp); 1305277b024eSKalle Valo 1306277b024eSKalle Valo /* 1307277b024eSKalle Valo * This function prepares an enhanced power mode command. 1308277b024eSKalle Valo * 1309277b024eSKalle Valo * This function can be used to disable power save or to configure 1310277b024eSKalle Valo * power save with auto PS or STA PS or auto deep sleep. 1311277b024eSKalle Valo * 1312277b024eSKalle Valo * Preparation includes - 1313277b024eSKalle Valo * - Setting command ID, action and proper size 1314277b024eSKalle Valo * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV, 1315277b024eSKalle Valo * auto deep sleep TLV (as required) 1316277b024eSKalle Valo * - Ensuring correct endian-ness 1317277b024eSKalle Valo */ 1318277b024eSKalle Valo int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv, 1319277b024eSKalle Valo struct host_cmd_ds_command *cmd, 1320277b024eSKalle Valo u16 cmd_action, uint16_t ps_bitmap, 1321277b024eSKalle Valo struct mwifiex_ds_auto_ds *auto_ds) 1322277b024eSKalle Valo { 1323277b024eSKalle Valo struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh = 1324277b024eSKalle Valo &cmd->params.psmode_enh; 1325277b024eSKalle Valo u8 *tlv; 1326277b024eSKalle Valo u16 cmd_size = 0; 1327277b024eSKalle Valo 1328277b024eSKalle Valo cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); 1329277b024eSKalle Valo if (cmd_action == DIS_AUTO_PS) { 1330277b024eSKalle Valo psmode_enh->action = cpu_to_le16(DIS_AUTO_PS); 1331277b024eSKalle Valo psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); 1332277b024eSKalle Valo cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + 1333277b024eSKalle Valo sizeof(psmode_enh->params.ps_bitmap)); 1334277b024eSKalle Valo } else if (cmd_action == GET_PS) { 1335277b024eSKalle Valo psmode_enh->action = cpu_to_le16(GET_PS); 1336277b024eSKalle Valo psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); 1337277b024eSKalle Valo cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + 1338277b024eSKalle Valo sizeof(psmode_enh->params.ps_bitmap)); 1339277b024eSKalle Valo } else if (cmd_action == EN_AUTO_PS) { 1340277b024eSKalle Valo psmode_enh->action = cpu_to_le16(EN_AUTO_PS); 1341277b024eSKalle Valo psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); 1342277b024eSKalle Valo cmd_size = S_DS_GEN + sizeof(psmode_enh->action) + 1343277b024eSKalle Valo sizeof(psmode_enh->params.ps_bitmap); 1344277b024eSKalle Valo tlv = (u8 *) cmd + cmd_size; 1345277b024eSKalle Valo if (ps_bitmap & BITMAP_STA_PS) { 1346277b024eSKalle Valo struct mwifiex_adapter *adapter = priv->adapter; 1347277b024eSKalle Valo struct mwifiex_ie_types_ps_param *ps_tlv = 1348277b024eSKalle Valo (struct mwifiex_ie_types_ps_param *) tlv; 1349277b024eSKalle Valo struct mwifiex_ps_param *ps_mode = &ps_tlv->param; 1350277b024eSKalle Valo ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM); 1351277b024eSKalle Valo ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) - 1352277b024eSKalle Valo sizeof(struct mwifiex_ie_types_header)); 1353277b024eSKalle Valo cmd_size += sizeof(*ps_tlv); 1354277b024eSKalle Valo tlv += sizeof(*ps_tlv); 1355277b024eSKalle Valo mwifiex_dbg(priv->adapter, CMD, 1356277b024eSKalle Valo "cmd: PS Command: Enter PS\n"); 1357277b024eSKalle Valo ps_mode->null_pkt_interval = 1358277b024eSKalle Valo cpu_to_le16(adapter->null_pkt_interval); 1359277b024eSKalle Valo ps_mode->multiple_dtims = 1360277b024eSKalle Valo cpu_to_le16(adapter->multiple_dtim); 1361277b024eSKalle Valo ps_mode->bcn_miss_timeout = 1362277b024eSKalle Valo cpu_to_le16(adapter->bcn_miss_time_out); 1363277b024eSKalle Valo ps_mode->local_listen_interval = 1364277b024eSKalle Valo cpu_to_le16(adapter->local_listen_interval); 1365277b024eSKalle Valo ps_mode->adhoc_wake_period = 1366277b024eSKalle Valo cpu_to_le16(adapter->adhoc_awake_period); 1367277b024eSKalle Valo ps_mode->delay_to_ps = 1368277b024eSKalle Valo cpu_to_le16(adapter->delay_to_ps); 1369277b024eSKalle Valo ps_mode->mode = cpu_to_le16(adapter->enhanced_ps_mode); 1370277b024eSKalle Valo 1371277b024eSKalle Valo } 1372277b024eSKalle Valo if (ps_bitmap & BITMAP_AUTO_DS) { 1373277b024eSKalle Valo struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv = 1374277b024eSKalle Valo (struct mwifiex_ie_types_auto_ds_param *) tlv; 1375277b024eSKalle Valo u16 idletime = 0; 1376277b024eSKalle Valo 1377277b024eSKalle Valo auto_ds_tlv->header.type = 1378277b024eSKalle Valo cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM); 1379277b024eSKalle Valo auto_ds_tlv->header.len = 1380277b024eSKalle Valo cpu_to_le16(sizeof(*auto_ds_tlv) - 1381277b024eSKalle Valo sizeof(struct mwifiex_ie_types_header)); 1382277b024eSKalle Valo cmd_size += sizeof(*auto_ds_tlv); 1383277b024eSKalle Valo tlv += sizeof(*auto_ds_tlv); 1384277b024eSKalle Valo if (auto_ds) 1385277b024eSKalle Valo idletime = auto_ds->idle_time; 1386277b024eSKalle Valo mwifiex_dbg(priv->adapter, CMD, 1387277b024eSKalle Valo "cmd: PS Command: Enter Auto Deep Sleep\n"); 1388277b024eSKalle Valo auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime); 1389277b024eSKalle Valo } 1390277b024eSKalle Valo cmd->size = cpu_to_le16(cmd_size); 1391277b024eSKalle Valo } 1392277b024eSKalle Valo return 0; 1393277b024eSKalle Valo } 1394277b024eSKalle Valo 1395277b024eSKalle Valo /* 1396277b024eSKalle Valo * This function handles the command response of an enhanced power mode 1397277b024eSKalle Valo * command. 1398277b024eSKalle Valo * 1399277b024eSKalle Valo * Handling includes changing the header fields into CPU format 1400277b024eSKalle Valo * and setting the current enhanced power mode in driver. 1401277b024eSKalle Valo */ 1402277b024eSKalle Valo int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv, 1403277b024eSKalle Valo struct host_cmd_ds_command *resp, 1404277b024eSKalle Valo struct mwifiex_ds_pm_cfg *pm_cfg) 1405277b024eSKalle Valo { 1406277b024eSKalle Valo struct mwifiex_adapter *adapter = priv->adapter; 1407277b024eSKalle Valo struct host_cmd_ds_802_11_ps_mode_enh *ps_mode = 1408277b024eSKalle Valo &resp->params.psmode_enh; 1409277b024eSKalle Valo uint16_t action = le16_to_cpu(ps_mode->action); 1410277b024eSKalle Valo uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap); 1411277b024eSKalle Valo uint16_t auto_ps_bitmap = 1412277b024eSKalle Valo le16_to_cpu(ps_mode->params.ps_bitmap); 1413277b024eSKalle Valo 1414277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1415277b024eSKalle Valo "info: %s: PS_MODE cmd reply result=%#x action=%#X\n", 1416277b024eSKalle Valo __func__, resp->result, action); 1417277b024eSKalle Valo if (action == EN_AUTO_PS) { 1418277b024eSKalle Valo if (auto_ps_bitmap & BITMAP_AUTO_DS) { 1419277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1420277b024eSKalle Valo "cmd: Enabled auto deep sleep\n"); 1421277b024eSKalle Valo priv->adapter->is_deep_sleep = true; 1422277b024eSKalle Valo } 1423277b024eSKalle Valo if (auto_ps_bitmap & BITMAP_STA_PS) { 1424277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1425277b024eSKalle Valo "cmd: Enabled STA power save\n"); 1426277b024eSKalle Valo if (adapter->sleep_period.period) 1427277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1428277b024eSKalle Valo "cmd: set to uapsd/pps mode\n"); 1429277b024eSKalle Valo } 1430277b024eSKalle Valo } else if (action == DIS_AUTO_PS) { 1431277b024eSKalle Valo if (ps_bitmap & BITMAP_AUTO_DS) { 1432277b024eSKalle Valo priv->adapter->is_deep_sleep = false; 1433277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1434277b024eSKalle Valo "cmd: Disabled auto deep sleep\n"); 1435277b024eSKalle Valo } 1436277b024eSKalle Valo if (ps_bitmap & BITMAP_STA_PS) { 1437277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1438277b024eSKalle Valo "cmd: Disabled STA power save\n"); 1439277b024eSKalle Valo if (adapter->sleep_period.period) { 1440277b024eSKalle Valo adapter->delay_null_pkt = false; 1441277b024eSKalle Valo adapter->tx_lock_flag = false; 1442277b024eSKalle Valo adapter->pps_uapsd_mode = false; 1443277b024eSKalle Valo } 1444277b024eSKalle Valo } 1445277b024eSKalle Valo } else if (action == GET_PS) { 1446277b024eSKalle Valo if (ps_bitmap & BITMAP_STA_PS) 1447277b024eSKalle Valo adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; 1448277b024eSKalle Valo else 1449277b024eSKalle Valo adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 1450277b024eSKalle Valo 1451277b024eSKalle Valo mwifiex_dbg(adapter, CMD, 1452277b024eSKalle Valo "cmd: ps_bitmap=%#x\n", ps_bitmap); 1453277b024eSKalle Valo 1454277b024eSKalle Valo if (pm_cfg) { 1455277b024eSKalle Valo /* This section is for get power save mode */ 1456277b024eSKalle Valo if (ps_bitmap & BITMAP_STA_PS) 1457277b024eSKalle Valo pm_cfg->param.ps_mode = 1; 1458277b024eSKalle Valo else 1459277b024eSKalle Valo pm_cfg->param.ps_mode = 0; 1460277b024eSKalle Valo } 1461277b024eSKalle Valo } 1462277b024eSKalle Valo return 0; 1463277b024eSKalle Valo } 1464277b024eSKalle Valo 1465277b024eSKalle Valo /* 1466277b024eSKalle Valo * This function prepares command to get hardware specifications. 1467277b024eSKalle Valo * 1468277b024eSKalle Valo * Preparation includes - 1469277b024eSKalle Valo * - Setting command ID, action and proper size 1470277b024eSKalle Valo * - Setting permanent address parameter 1471277b024eSKalle Valo * - Ensuring correct endian-ness 1472277b024eSKalle Valo */ 1473277b024eSKalle Valo int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv, 1474277b024eSKalle Valo struct host_cmd_ds_command *cmd) 1475277b024eSKalle Valo { 1476277b024eSKalle Valo struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec; 1477277b024eSKalle Valo 1478277b024eSKalle Valo cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC); 1479277b024eSKalle Valo cmd->size = 1480277b024eSKalle Valo cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN); 1481277b024eSKalle Valo memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN); 1482277b024eSKalle Valo 1483277b024eSKalle Valo return 0; 1484277b024eSKalle Valo } 1485277b024eSKalle Valo 1486277b024eSKalle Valo /* 1487277b024eSKalle Valo * This function handles the command response of get hardware 1488277b024eSKalle Valo * specifications. 1489277b024eSKalle Valo * 1490277b024eSKalle Valo * Handling includes changing the header fields into CPU format 1491277b024eSKalle Valo * and saving/updating the following parameters in driver - 1492277b024eSKalle Valo * - Firmware capability information 1493277b024eSKalle Valo * - Firmware band settings 1494277b024eSKalle Valo * - Ad-hoc start band and channel 1495277b024eSKalle Valo * - Ad-hoc 11n activation status 1496277b024eSKalle Valo * - Firmware release number 1497277b024eSKalle Valo * - Number of antennas 1498277b024eSKalle Valo * - Hardware address 1499277b024eSKalle Valo * - Hardware interface version 1500277b024eSKalle Valo * - Firmware version 1501277b024eSKalle Valo * - Region code 1502277b024eSKalle Valo * - 11n capabilities 1503277b024eSKalle Valo * - MCS support fields 1504277b024eSKalle Valo * - MP end port 1505277b024eSKalle Valo */ 1506277b024eSKalle Valo int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv, 1507277b024eSKalle Valo struct host_cmd_ds_command *resp) 1508277b024eSKalle Valo { 1509277b024eSKalle Valo struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec; 1510277b024eSKalle Valo struct mwifiex_adapter *adapter = priv->adapter; 1511277b024eSKalle Valo struct mwifiex_ie_types_header *tlv; 1512277b024eSKalle Valo struct hw_spec_api_rev *api_rev; 1513277b024eSKalle Valo u16 resp_size, api_id; 1514277b024eSKalle Valo int i, left_len, parsed_len = 0; 1515277b024eSKalle Valo 1516277b024eSKalle Valo adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info); 1517277b024eSKalle Valo 1518277b024eSKalle Valo if (IS_SUPPORT_MULTI_BANDS(adapter)) 1519277b024eSKalle Valo adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter); 1520277b024eSKalle Valo else 1521277b024eSKalle Valo adapter->fw_bands = BAND_B; 1522277b024eSKalle Valo 1523277b024eSKalle Valo adapter->config_bands = adapter->fw_bands; 1524277b024eSKalle Valo 1525277b024eSKalle Valo if (adapter->fw_bands & BAND_A) { 1526277b024eSKalle Valo if (adapter->fw_bands & BAND_GN) { 1527277b024eSKalle Valo adapter->config_bands |= BAND_AN; 1528277b024eSKalle Valo adapter->fw_bands |= BAND_AN; 1529277b024eSKalle Valo } 1530277b024eSKalle Valo if (adapter->fw_bands & BAND_AN) { 1531277b024eSKalle Valo adapter->adhoc_start_band = BAND_A | BAND_AN; 1532277b024eSKalle Valo adapter->adhoc_11n_enabled = true; 1533277b024eSKalle Valo } else { 1534277b024eSKalle Valo adapter->adhoc_start_band = BAND_A; 1535277b024eSKalle Valo } 1536277b024eSKalle Valo priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A; 1537277b024eSKalle Valo } else if (adapter->fw_bands & BAND_GN) { 1538277b024eSKalle Valo adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN; 1539277b024eSKalle Valo priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; 1540277b024eSKalle Valo adapter->adhoc_11n_enabled = true; 1541277b024eSKalle Valo } else if (adapter->fw_bands & BAND_G) { 1542277b024eSKalle Valo adapter->adhoc_start_band = BAND_G | BAND_B; 1543277b024eSKalle Valo priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; 1544277b024eSKalle Valo } else if (adapter->fw_bands & BAND_B) { 1545277b024eSKalle Valo adapter->adhoc_start_band = BAND_B; 1546277b024eSKalle Valo priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; 1547277b024eSKalle Valo } 1548277b024eSKalle Valo 1549277b024eSKalle Valo adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number); 1550277b024eSKalle Valo adapter->fw_api_ver = (adapter->fw_release_number >> 16) & 0xff; 1551277b024eSKalle Valo adapter->number_of_antenna = le16_to_cpu(hw_spec->number_of_antenna); 1552277b024eSKalle Valo 1553277b024eSKalle Valo if (le32_to_cpu(hw_spec->dot_11ac_dev_cap)) { 1554277b024eSKalle Valo adapter->is_hw_11ac_capable = true; 1555277b024eSKalle Valo 1556277b024eSKalle Valo /* Copy 11AC cap */ 1557277b024eSKalle Valo adapter->hw_dot_11ac_dev_cap = 1558277b024eSKalle Valo le32_to_cpu(hw_spec->dot_11ac_dev_cap); 1559277b024eSKalle Valo adapter->usr_dot_11ac_dev_cap_bg = adapter->hw_dot_11ac_dev_cap 1560277b024eSKalle Valo & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK; 1561277b024eSKalle Valo adapter->usr_dot_11ac_dev_cap_a = adapter->hw_dot_11ac_dev_cap 1562277b024eSKalle Valo & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK; 1563277b024eSKalle Valo 1564277b024eSKalle Valo /* Copy 11AC mcs */ 1565277b024eSKalle Valo adapter->hw_dot_11ac_mcs_support = 1566277b024eSKalle Valo le32_to_cpu(hw_spec->dot_11ac_mcs_support); 1567277b024eSKalle Valo adapter->usr_dot_11ac_mcs_support = 1568277b024eSKalle Valo adapter->hw_dot_11ac_mcs_support; 1569277b024eSKalle Valo } else { 1570277b024eSKalle Valo adapter->is_hw_11ac_capable = false; 1571277b024eSKalle Valo } 1572277b024eSKalle Valo 1573277b024eSKalle Valo resp_size = le16_to_cpu(resp->size) - S_DS_GEN; 1574277b024eSKalle Valo if (resp_size > sizeof(struct host_cmd_ds_get_hw_spec)) { 1575277b024eSKalle Valo /* we have variable HW SPEC information */ 1576277b024eSKalle Valo left_len = resp_size - sizeof(struct host_cmd_ds_get_hw_spec); 1577277b024eSKalle Valo while (left_len > sizeof(struct mwifiex_ie_types_header)) { 1578277b024eSKalle Valo tlv = (void *)&hw_spec->tlvs + parsed_len; 1579277b024eSKalle Valo switch (le16_to_cpu(tlv->type)) { 1580277b024eSKalle Valo case TLV_TYPE_API_REV: 1581277b024eSKalle Valo api_rev = (struct hw_spec_api_rev *)tlv; 1582277b024eSKalle Valo api_id = le16_to_cpu(api_rev->api_id); 1583277b024eSKalle Valo switch (api_id) { 1584277b024eSKalle Valo case KEY_API_VER_ID: 1585277b024eSKalle Valo adapter->key_api_major_ver = 1586277b024eSKalle Valo api_rev->major_ver; 1587277b024eSKalle Valo adapter->key_api_minor_ver = 1588277b024eSKalle Valo api_rev->minor_ver; 1589277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1590277b024eSKalle Valo "key_api v%d.%d\n", 1591277b024eSKalle Valo adapter->key_api_major_ver, 1592277b024eSKalle Valo adapter->key_api_minor_ver); 1593277b024eSKalle Valo break; 1594277b024eSKalle Valo case FW_API_VER_ID: 1595277b024eSKalle Valo adapter->fw_api_ver = 1596277b024eSKalle Valo api_rev->major_ver; 1597277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1598277b024eSKalle Valo "Firmware api version %d\n", 1599277b024eSKalle Valo adapter->fw_api_ver); 1600277b024eSKalle Valo break; 1601277b024eSKalle Valo default: 1602277b024eSKalle Valo mwifiex_dbg(adapter, FATAL, 1603277b024eSKalle Valo "Unknown api_id: %d\n", 1604277b024eSKalle Valo api_id); 1605277b024eSKalle Valo break; 1606277b024eSKalle Valo } 1607277b024eSKalle Valo break; 1608277b024eSKalle Valo default: 1609277b024eSKalle Valo mwifiex_dbg(adapter, FATAL, 1610277b024eSKalle Valo "Unknown GET_HW_SPEC TLV type: %#x\n", 1611277b024eSKalle Valo le16_to_cpu(tlv->type)); 1612277b024eSKalle Valo break; 1613277b024eSKalle Valo } 1614277b024eSKalle Valo parsed_len += le16_to_cpu(tlv->len) + 1615277b024eSKalle Valo sizeof(struct mwifiex_ie_types_header); 1616277b024eSKalle Valo left_len -= le16_to_cpu(tlv->len) + 1617277b024eSKalle Valo sizeof(struct mwifiex_ie_types_header); 1618277b024eSKalle Valo } 1619277b024eSKalle Valo } 1620277b024eSKalle Valo 1621277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1622277b024eSKalle Valo "info: GET_HW_SPEC: fw_release_number- %#x\n", 1623277b024eSKalle Valo adapter->fw_release_number); 1624277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1625277b024eSKalle Valo "info: GET_HW_SPEC: permanent addr: %pM\n", 1626277b024eSKalle Valo hw_spec->permanent_addr); 1627277b024eSKalle Valo mwifiex_dbg(adapter, INFO, 1628277b024eSKalle Valo "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n", 1629277b024eSKalle Valo le16_to_cpu(hw_spec->hw_if_version), 1630277b024eSKalle Valo le16_to_cpu(hw_spec->version)); 1631277b024eSKalle Valo 1632277b024eSKalle Valo ether_addr_copy(priv->adapter->perm_addr, hw_spec->permanent_addr); 1633277b024eSKalle Valo adapter->region_code = le16_to_cpu(hw_spec->region_code); 1634277b024eSKalle Valo 1635277b024eSKalle Valo for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++) 1636277b024eSKalle Valo /* Use the region code to search for the index */ 1637277b024eSKalle Valo if (adapter->region_code == region_code_index[i]) 1638277b024eSKalle Valo break; 1639277b024eSKalle Valo 1640277b024eSKalle Valo /* If it's unidentified region code, use the default (USA) */ 1641277b024eSKalle Valo if (i >= MWIFIEX_MAX_REGION_CODE) { 1642277b024eSKalle Valo adapter->region_code = 0x10; 1643277b024eSKalle Valo mwifiex_dbg(adapter, WARN, 1644277b024eSKalle Valo "cmd: unknown region code, use default (USA)\n"); 1645277b024eSKalle Valo } 1646277b024eSKalle Valo 1647277b024eSKalle Valo adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap); 1648277b024eSKalle Valo adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support; 1649277b024eSKalle Valo adapter->user_dev_mcs_support = adapter->hw_dev_mcs_support; 1650277b024eSKalle Valo 1651277b024eSKalle Valo if (adapter->if_ops.update_mp_end_port) 1652277b024eSKalle Valo adapter->if_ops.update_mp_end_port(adapter, 1653277b024eSKalle Valo le16_to_cpu(hw_spec->mp_end_port)); 1654277b024eSKalle Valo 1655277b024eSKalle Valo if (adapter->fw_api_ver == MWIFIEX_FW_V15) 1656277b024eSKalle Valo adapter->scan_chan_gap_enabled = true; 1657277b024eSKalle Valo 1658277b024eSKalle Valo return 0; 1659277b024eSKalle Valo } 1660