--- /dev/null
+/*
+ * Marvell Wireless LAN device driver: commands and events
+ *
+ * Copyright (C) 2011-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.h"
+#include "11ac.h"
+
+/*
+ * This function initializes a command node.
+ *
+ * The actual allocation of the node is not done by this function. It only
+ * initiates a node by filling it with default parameters. Similarly,
+ * allocation of the different buffers used (IOCTL buffer, data buffer) are
+ * not done by this function either.
+ */
+static void
+mwifiex_init_cmd_node(struct mwifiex_private *priv,
+ struct cmd_ctrl_node *cmd_node,
+ u32 cmd_oid, void *data_buf, bool sync)
+{
+ cmd_node->priv = priv;
+ cmd_node->cmd_oid = cmd_oid;
+ if (sync) {
+ cmd_node->wait_q_enabled = true;
+ cmd_node->cmd_wait_q_woken = false;
+ cmd_node->condition = &cmd_node->cmd_wait_q_woken;
+ }
+ cmd_node->data_buf = data_buf;
+ cmd_node->cmd_skb = cmd_node->skb;
+}
+
+/*
+ * This function returns a command node from the free queue depending upon
+ * availability.
+ */
+static struct cmd_ctrl_node *
+mwifiex_get_cmd_node(struct mwifiex_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
+ if (list_empty(&adapter->cmd_free_q)) {
+ dev_err(adapter->dev, "GET_CMD_NODE: cmd node not available\n");
+ spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
+ return NULL;
+ }
+ cmd_node = list_first_entry(&adapter->cmd_free_q,
+ struct cmd_ctrl_node, list);
+ list_del(&cmd_node->list);
+ spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
+
+ return cmd_node;
+}
+
+/*
+ * This function cleans up a command node.
+ *
+ * The function resets the fields including the buffer pointers.
+ * This function does not try to free the buffers. They must be
+ * freed before calling this function.
+ *
+ * This function will however call the receive completion callback
+ * in case a response buffer is still available before resetting
+ * the pointer.
+ */
+static void
+mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ cmd_node->cmd_oid = 0;
+ cmd_node->cmd_flag = 0;
+ cmd_node->data_buf = NULL;
+ cmd_node->wait_q_enabled = false;
+
+ if (cmd_node->cmd_skb)
+ skb_trim(cmd_node->cmd_skb, 0);
+
+ if (cmd_node->resp_skb) {
+ adapter->if_ops.cmdrsp_complete(adapter, cmd_node->resp_skb);
+ cmd_node->resp_skb = NULL;
+ }
+}
+
+/*
+ * This function sends a host command to the firmware.
+ *
+ * The function copies the host command into the driver command
+ * buffer, which will be transferred to the firmware later by the
+ * main thread.
+ */
+static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *cmd,
+ struct mwifiex_ds_misc_cmd *pcmd_ptr)
+{
+ /* Copy the HOST command to command buffer */
+ memcpy(cmd, pcmd_ptr->cmd, pcmd_ptr->len);
+ dev_dbg(priv->adapter->dev, "cmd: host cmd size = %d\n", pcmd_ptr->len);
+ return 0;
+}
+
+/*
+ * This function downloads a command to the firmware.
+ *
+ * The function performs sanity tests, sets the command sequence
+ * number and size, converts the header fields to CPU format before
+ * sending. Afterwards, it logs the command ID and action for debugging
+ * and sets up the command timeout timer.
+ */
+static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
+ struct cmd_ctrl_node *cmd_node)
+{
+
+ struct mwifiex_adapter *adapter = priv->adapter;
+ int ret;
+ struct host_cmd_ds_command *host_cmd;
+ uint16_t cmd_code;
+ uint16_t cmd_size;
+ unsigned long flags;
+ __le32 tmp;
+
+ if (!adapter || !cmd_node)
+ return -1;
+
+ host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
+
+ /* Sanity test */
+ if (host_cmd == NULL || host_cmd->size == 0) {
+ dev_err(adapter->dev, "DNLD_CMD: host_cmd is null"
+ " or cmd size is 0, not sending\n");
+ if (cmd_node->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+ mwifiex_recycle_cmd_node(adapter, cmd_node);
+ return -1;
+ }
+
+ cmd_code = le16_to_cpu(host_cmd->command);
+ cmd_size = le16_to_cpu(host_cmd->size);
+
+ if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET &&
+ cmd_code != HostCmd_CMD_FUNC_SHUTDOWN &&
+ cmd_code != HostCmd_CMD_FUNC_INIT) {
+ dev_err(adapter->dev,
+ "DNLD_CMD: FW in reset state, ignore cmd %#x\n",
+ cmd_code);
+ if (cmd_node->wait_q_enabled)
+ mwifiex_complete_cmd(adapter, cmd_node);
+ mwifiex_recycle_cmd_node(adapter, cmd_node);
+ queue_work(adapter->workqueue, &adapter->main_work);
+ return -1;
+ }
+
+ /* Set command sequence number */
+ adapter->seq_num++;
+ host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
+ (adapter->seq_num,
+ cmd_node->priv->bss_num,
+ cmd_node->priv->bss_type));
+
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->curr_cmd = cmd_node;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
+ /* Adjust skb length */
+ if (cmd_node->cmd_skb->len > cmd_size)
+ /*
+ * cmd_size is less than sizeof(struct host_cmd_ds_command).
+ * Trim off the unused portion.
+ */
+ skb_trim(cmd_node->cmd_skb, cmd_size);
+ else if (cmd_node->cmd_skb->len < cmd_size)
+ /*
+ * cmd_size is larger than sizeof(struct host_cmd_ds_command)
+ * because we have appended custom IE TLV. Increase skb length
+ * accordingly.
+ */
+ skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len);
+
+ dev_dbg(adapter->dev,
+ "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n", cmd_code,
+ le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)), cmd_size,
+ le16_to_cpu(host_cmd->seq_num));
+
+ if (adapter->iface_type == MWIFIEX_USB) {
+ tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD);
+ skb_push(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN);
+ memcpy(cmd_node->cmd_skb->data, &tmp, MWIFIEX_TYPE_LEN);
+ adapter->cmd_sent = true;
+ ret = adapter->if_ops.host_to_card(adapter,
+ MWIFIEX_USB_EP_CMD_EVENT,
+ cmd_node->cmd_skb, NULL);
+ skb_pull(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN);
+ if (ret == -EBUSY)
+ cmd_node->cmd_skb = NULL;
+ } else {
+ skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN);
+ ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
+ cmd_node->cmd_skb, NULL);
+ skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
+ }
+
+ if (ret == -1) {
+ dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
+ if (adapter->iface_type == MWIFIEX_USB)
+ adapter->cmd_sent = false;
+ if (cmd_node->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+ mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
+
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->curr_cmd = NULL;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
+ adapter->dbg.num_cmd_host_to_card_failure++;
+ return -1;
+ }
+
+ /* Save the last command id and action to debug log */
+ adapter->dbg.last_cmd_index =
+ (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM;
+ adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code;
+ adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] =
+ le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN));
+
+ /* Clear BSS_NO_BITS from HostCmd */
+ cmd_code &= HostCmd_CMD_ID_MASK;
+
+ /* Setup the timer after transmit command */
+ mod_timer(&adapter->cmd_timer,
+ jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
+
+ return 0;
+}
+
+/*
+ * This function downloads a sleep confirm command to the firmware.
+ *
+ * The function performs sanity tests, sets the command sequence
+ * number and size, converts the header fields to CPU format before
+ * sending.
+ *
+ * No responses are needed for sleep confirm command.
+ */
+static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
+{
+ int ret;
+ struct mwifiex_private *priv;
+ struct mwifiex_opt_sleep_confirm *sleep_cfm_buf =
+ (struct mwifiex_opt_sleep_confirm *)
+ adapter->sleep_cfm->data;
+ struct sk_buff *sleep_cfm_tmp;
+ __le32 tmp;
+
+ priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+
+ adapter->seq_num++;
+ sleep_cfm_buf->seq_num =
+ cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
+ (adapter->seq_num, priv->bss_num,
+ priv->bss_type)));
+
+ dev_dbg(adapter->dev,
+ "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n",
+ le16_to_cpu(sleep_cfm_buf->command),
+ le16_to_cpu(sleep_cfm_buf->action),
+ le16_to_cpu(sleep_cfm_buf->size),
+ le16_to_cpu(sleep_cfm_buf->seq_num));
+
+ if (adapter->iface_type == MWIFIEX_USB) {
+ sleep_cfm_tmp =
+ dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
+ + MWIFIEX_TYPE_LEN);
+ skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm)
+ + MWIFIEX_TYPE_LEN);
+ tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD);
+ memcpy(sleep_cfm_tmp->data, &tmp, MWIFIEX_TYPE_LEN);
+ memcpy(sleep_cfm_tmp->data + MWIFIEX_TYPE_LEN,
+ adapter->sleep_cfm->data,
+ sizeof(struct mwifiex_opt_sleep_confirm));
+ ret = adapter->if_ops.host_to_card(adapter,
+ MWIFIEX_USB_EP_CMD_EVENT,
+ sleep_cfm_tmp, NULL);
+ if (ret != -EBUSY)
+ dev_kfree_skb_any(sleep_cfm_tmp);
+ } else {
+ skb_push(adapter->sleep_cfm, INTF_HEADER_LEN);
+ ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
+ adapter->sleep_cfm, NULL);
+ skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN);
+ }
+
+ if (ret == -1) {
+ dev_err(adapter->dev, "SLEEP_CFM: failed\n");
+ adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++;
+ return -1;
+ }
+
+ if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl))
+ /* Response is not needed for sleep confirm command */
+ adapter->ps_state = PS_STATE_SLEEP;
+ else
+ adapter->ps_state = PS_STATE_SLEEP_CFM;
+
+ if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl) &&
+ (adapter->is_hs_configured &&
+ !adapter->sleep_period.period)) {
+ adapter->pm_wakeup_card_req = true;
+ mwifiex_hs_activated_event(mwifiex_get_priv
+ (adapter, MWIFIEX_BSS_ROLE_ANY), true);
+ }
+
+ return ret;
+}
+
+/*
+ * This function allocates the command buffers and links them to
+ * the command free queue.
+ *
+ * The driver uses a pre allocated number of command buffers, which
+ * are created at driver initializations and freed at driver cleanup.
+ * Every command needs to obtain a command buffer from this pool before
+ * it can be issued. The command free queue lists the command buffers
+ * currently free to use, while the command pending queue lists the
+ * command buffers already in use and awaiting handling. Command buffers
+ * are returned to the free queue after use.
+ */
+int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_array;
+ u32 i;
+
+ /* Allocate and initialize struct cmd_ctrl_node */
+ cmd_array = kcalloc(MWIFIEX_NUM_OF_CMD_BUFFER,
+ sizeof(struct cmd_ctrl_node), GFP_KERNEL);
+ if (!cmd_array)
+ return -ENOMEM;
+
+ adapter->cmd_pool = cmd_array;
+
+ /* Allocate and initialize command buffers */
+ for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
+ cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER);
+ if (!cmd_array[i].skb) {
+ dev_err(adapter->dev, "ALLOC_CMD_BUF: out of memory\n");
+ return -1;
+ }
+ }
+
+ for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++)
+ mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]);
+
+ return 0;
+}
+
+/*
+ * This function frees the command buffers.
+ *
+ * The function calls the completion callback for all the command
+ * buffers that still have response buffers associated with them.
+ */
+int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_array;
+ u32 i;
+
+ /* Need to check if cmd pool is allocated or not */
+ if (!adapter->cmd_pool) {
+ dev_dbg(adapter->dev, "info: FREE_CMD_BUF: cmd_pool is null\n");
+ return 0;
+ }
+
+ cmd_array = adapter->cmd_pool;
+
+ /* Release shared memory buffers */
+ for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
+ if (cmd_array[i].skb) {
+ dev_dbg(adapter->dev, "cmd: free cmd buffer %d\n", i);
+ dev_kfree_skb_any(cmd_array[i].skb);
+ }
+ if (!cmd_array[i].resp_skb)
+ continue;
+
+ if (adapter->iface_type == MWIFIEX_USB)
+ adapter->if_ops.cmdrsp_complete(adapter,
+ cmd_array[i].resp_skb);
+ else
+ dev_kfree_skb_any(cmd_array[i].resp_skb);
+ }
+ /* Release struct cmd_ctrl_node */
+ if (adapter->cmd_pool) {
+ dev_dbg(adapter->dev, "cmd: free cmd pool\n");
+ kfree(adapter->cmd_pool);
+ adapter->cmd_pool = NULL;
+ }
+
+ return 0;
+}
+
+/*
+ * This function handles events generated by firmware.
+ *
+ * Event body of events received from firmware are not used (though they are
+ * saved), only the event ID is used. Some events are re-invoked by
+ * the driver, with a new event body.
+ *
+ * After processing, the function calls the completion callback
+ * for cleanup.
+ */
+int mwifiex_process_event(struct mwifiex_adapter *adapter)
+{
+ int ret;
+ struct mwifiex_private *priv =
+ mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+ struct sk_buff *skb = adapter->event_skb;
+ u32 eventcause = adapter->event_cause;
+ struct mwifiex_rxinfo *rx_info;
+
+ /* Save the last event to debug log */
+ adapter->dbg.last_event_index =
+ (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM;
+ adapter->dbg.last_event[adapter->dbg.last_event_index] =
+ (u16) eventcause;
+
+ /* Get BSS number and corresponding priv */
+ priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause),
+ EVENT_GET_BSS_TYPE(eventcause));
+ if (!priv)
+ priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+
+ /* Clear BSS_NO_BITS from event */
+ eventcause &= EVENT_ID_MASK;
+ adapter->event_cause = eventcause;
+
+ if (skb) {
+ rx_info = MWIFIEX_SKB_RXCB(skb);
+ memset(rx_info, 0, sizeof(*rx_info));
+ rx_info->bss_num = priv->bss_num;
+ rx_info->bss_type = priv->bss_type;
+ }
+
+ dev_dbg(adapter->dev, "EVENT: cause: %#x\n", eventcause);
+
+ if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+ ret = mwifiex_process_uap_event(priv);
+ else
+ ret = mwifiex_process_sta_event(priv);
+
+ adapter->event_cause = 0;
+ adapter->event_skb = NULL;
+ adapter->if_ops.event_complete(adapter, skb);
+
+ return ret;
+}
+
+/*
+ * This function prepares a command and send it to the firmware.
+ *
+ * Preparation includes -
+ * - Sanity tests to make sure the card is still present or the FW
+ * is not reset
+ * - Getting a new command node from the command free queue
+ * - Initializing the command node for default parameters
+ * - Fill up the non-default parameters and buffer pointers
+ * - Add the command to pending queue
+ */
+int mwifiex_send_cmd(struct mwifiex_private *priv, u16 cmd_no,
+ u16 cmd_action, u32 cmd_oid, void *data_buf, bool sync)
+{
+ int ret;
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct cmd_ctrl_node *cmd_node;
+ struct host_cmd_ds_command *cmd_ptr;
+
+ if (!adapter) {
+ pr_err("PREP_CMD: adapter is NULL\n");
+ return -1;
+ }
+
+ if (adapter->is_suspended) {
+ dev_err(adapter->dev, "PREP_CMD: device in suspended state\n");
+ return -1;
+ }
+
+ if (adapter->hs_enabling && cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) {
+ dev_err(adapter->dev, "PREP_CMD: host entering sleep state\n");
+ return -1;
+ }
+
+ if (adapter->surprise_removed) {
+ dev_err(adapter->dev, "PREP_CMD: card is removed\n");
+ return -1;
+ }
+
+ if (adapter->is_cmd_timedout) {
+ dev_err(adapter->dev, "PREP_CMD: FW is in bad state\n");
+ return -1;
+ }
+
+ if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) {
+ if (cmd_no != HostCmd_CMD_FUNC_INIT) {
+ dev_err(adapter->dev, "PREP_CMD: FW in reset state\n");
+ return -1;
+ }
+ }
+
+ /* Get a new command node */
+ cmd_node = mwifiex_get_cmd_node(adapter);
+
+ if (!cmd_node) {
+ dev_err(adapter->dev, "PREP_CMD: no free cmd node\n");
+ return -1;
+ }
+
+ /* Initialize the command node */
+ mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, data_buf, sync);
+
+ if (!cmd_node->cmd_skb) {
+ dev_err(adapter->dev, "PREP_CMD: no free cmd buf\n");
+ return -1;
+ }
+
+ memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)),
+ 0, sizeof(struct host_cmd_ds_command));
+
+ cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
+ cmd_ptr->command = cpu_to_le16(cmd_no);
+ cmd_ptr->result = 0;
+
+ /* Prepare command */
+ if (cmd_no) {
+ switch (cmd_no) {
+ case HostCmd_CMD_UAP_SYS_CONFIG:
+ case HostCmd_CMD_UAP_BSS_START:
+ case HostCmd_CMD_UAP_BSS_STOP:
+ case HostCmd_CMD_UAP_STA_DEAUTH:
+ ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action,
+ cmd_oid, data_buf,
+ cmd_ptr);
+ break;
+ default:
+ ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action,
+ cmd_oid, data_buf,
+ cmd_ptr);
+ break;
+ }
+ } else {
+ ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf);
+ cmd_node->cmd_flag |= CMD_F_HOSTCMD;
+ }
+
+ /* Return error, since the command preparation failed */
+ if (ret) {
+ dev_err(adapter->dev, "PREP_CMD: cmd %#x preparation failed\n",
+ cmd_no);
+ mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+ return -1;
+ }
+
+ /* Send command */
+ if (cmd_no == HostCmd_CMD_802_11_SCAN ||
+ cmd_no == HostCmd_CMD_802_11_SCAN_EXT) {
+ mwifiex_queue_scan_cmd(priv, cmd_node);
+ } else {
+ mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
+ queue_work(adapter->workqueue, &adapter->main_work);
+ if (cmd_node->wait_q_enabled)
+ ret = mwifiex_wait_queue_complete(adapter, cmd_node);
+ }
+
+ return ret;
+}
+
+/*
+ * This function returns a command to the command free queue.
+ *
+ * The function also calls the completion callback if required, before
+ * cleaning the command node and re-inserting it into the free queue.
+ */
+void
+mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ unsigned long flags;
+
+ if (!cmd_node)
+ return;
+
+ if (cmd_node->wait_q_enabled)
+ mwifiex_complete_cmd(adapter, cmd_node);
+ /* Clean the node */
+ mwifiex_clean_cmd_node(adapter, cmd_node);
+
+ /* Insert node into cmd_free_q */
+ spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
+ list_add_tail(&cmd_node->list, &adapter->cmd_free_q);
+ spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
+}
+
+/* This function reuses a command node. */
+void mwifiex_recycle_cmd_node(struct mwifiex_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ struct host_cmd_ds_command *host_cmd = (void *)cmd_node->cmd_skb->data;
+
+ mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+
+ atomic_dec(&adapter->cmd_pending);
+ dev_dbg(adapter->dev, "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n",
+ le16_to_cpu(host_cmd->command),
+ atomic_read(&adapter->cmd_pending));
+}
+
+/*
+ * This function queues a command to the command pending queue.
+ *
+ * This in effect adds the command to the command list to be executed.
+ * Exit PS command is handled specially, by placing it always to the
+ * front of the command queue.
+ */
+void
+mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node, u32 add_tail)
+{
+ struct host_cmd_ds_command *host_cmd = NULL;
+ u16 command;
+ unsigned long flags;
+
+ host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
+ if (!host_cmd) {
+ dev_err(adapter->dev, "QUEUE_CMD: host_cmd is NULL\n");
+ return;
+ }
+
+ command = le16_to_cpu(host_cmd->command);
+
+ /* Exit_PS command needs to be queued in the header always. */
+ if (command == HostCmd_CMD_802_11_PS_MODE_ENH) {
+ struct host_cmd_ds_802_11_ps_mode_enh *pm =
+ &host_cmd->params.psmode_enh;
+ if ((le16_to_cpu(pm->action) == DIS_PS) ||
+ (le16_to_cpu(pm->action) == DIS_AUTO_PS)) {
+ if (adapter->ps_state != PS_STATE_AWAKE)
+ add_tail = false;
+ }
+ }
+
+ spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
+ if (add_tail)
+ list_add_tail(&cmd_node->list, &adapter->cmd_pending_q);
+ else
+ list_add(&cmd_node->list, &adapter->cmd_pending_q);
+ spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
+
+ atomic_inc(&adapter->cmd_pending);
+ dev_dbg(adapter->dev, "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n",
+ command, atomic_read(&adapter->cmd_pending));
+}
+
+/*
+ * This function executes the next command in command pending queue.
+ *
+ * This function will fail if a command is already in processing stage,
+ * otherwise it will dequeue the first command from the command pending
+ * queue and send to the firmware.
+ *
+ * If the device is currently in host sleep mode, any commands, except the
+ * host sleep configuration command will de-activate the host sleep. For PS
+ * mode, the function will put the firmware back to sleep if applicable.
+ */
+int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter)
+{
+ struct mwifiex_private *priv;
+ struct cmd_ctrl_node *cmd_node;
+ int ret = 0;
+ struct host_cmd_ds_command *host_cmd;
+ unsigned long cmd_flags;
+ unsigned long cmd_pending_q_flags;
+
+ /* Check if already in processing */
+ if (adapter->curr_cmd) {
+ dev_err(adapter->dev, "EXEC_NEXT_CMD: cmd in processing\n");
+ return -1;
+ }
+
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
+ /* Check if any command is pending */
+ spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
+ if (list_empty(&adapter->cmd_pending_q)) {
+ spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
+ cmd_pending_q_flags);
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+ return 0;
+ }
+ cmd_node = list_first_entry(&adapter->cmd_pending_q,
+ struct cmd_ctrl_node, list);
+ spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
+ cmd_pending_q_flags);
+
+ host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
+ priv = cmd_node->priv;
+
+ if (adapter->ps_state != PS_STATE_AWAKE) {
+ dev_err(adapter->dev, "%s: cannot send cmd in sleep state,"
+ " this should not happen\n", __func__);
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+ return ret;
+ }
+
+ spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
+ list_del(&cmd_node->list);
+ spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
+ cmd_pending_q_flags);
+
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+ ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node);
+ priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+ /* Any command sent to the firmware when host is in sleep
+ * mode should de-configure host sleep. We should skip the
+ * host sleep configuration command itself though
+ */
+ if (priv && (host_cmd->command !=
+ cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) {
+ if (adapter->hs_activated) {
+ adapter->is_hs_configured = false;
+ mwifiex_hs_activated_event(priv, false);
+ }
+ }
+
+ return ret;
+}
+
+/*
+ * This function handles the command response.
+ *
+ * After processing, the function cleans the command node and puts
+ * it back to the command free queue.
+ */
+int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
+{
+ struct host_cmd_ds_command *resp;
+ struct mwifiex_private *priv =
+ mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+ int ret = 0;
+ uint16_t orig_cmdresp_no;
+ uint16_t cmdresp_no;
+ uint16_t cmdresp_result;
+ unsigned long flags;
+
+ /* Now we got response from FW, cancel the command timer */
+ del_timer_sync(&adapter->cmd_timer);
+
+ if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) {
+ resp = (struct host_cmd_ds_command *) adapter->upld_buf;
+ dev_err(adapter->dev, "CMD_RESP: NULL curr_cmd, %#x\n",
+ le16_to_cpu(resp->command));
+ return -1;
+ }
+
+ adapter->is_cmd_timedout = 0;
+
+ resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data;
+ if (adapter->curr_cmd->cmd_flag & CMD_F_CANCELED) {
+ dev_err(adapter->dev, "CMD_RESP: %#x been canceled\n",
+ le16_to_cpu(resp->command));
+ mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->curr_cmd = NULL;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+ return -1;
+ }
+
+ if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
+ /* Copy original response back to response buffer */
+ struct mwifiex_ds_misc_cmd *hostcmd;
+ uint16_t size = le16_to_cpu(resp->size);
+ dev_dbg(adapter->dev, "info: host cmd resp size = %d\n", size);
+ size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER);
+ if (adapter->curr_cmd->data_buf) {
+ hostcmd = adapter->curr_cmd->data_buf;
+ hostcmd->len = size;
+ memcpy(hostcmd->cmd, resp, size);
+ }
+ }
+ orig_cmdresp_no = le16_to_cpu(resp->command);
+
+ /* Get BSS number and corresponding priv */
+ priv = mwifiex_get_priv_by_id(adapter,
+ HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)),
+ HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num)));
+ if (!priv)
+ priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+ /* Clear RET_BIT from HostCmd */
+ resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK);
+
+ cmdresp_no = le16_to_cpu(resp->command);
+ cmdresp_result = le16_to_cpu(resp->result);
+
+ /* Save the last command response to debug log */
+ adapter->dbg.last_cmd_resp_index =
+ (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM;
+ adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] =
+ orig_cmdresp_no;
+
+ dev_dbg(adapter->dev,
+ "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n",
+ orig_cmdresp_no, cmdresp_result,
+ le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num));
+
+ if (!(orig_cmdresp_no & HostCmd_RET_BIT)) {
+ dev_err(adapter->dev, "CMD_RESP: invalid cmd resp\n");
+ if (adapter->curr_cmd->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+
+ mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->curr_cmd = NULL;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+ return -1;
+ }
+
+ if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
+ adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD;
+ if ((cmdresp_result == HostCmd_RESULT_OK) &&
+ (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH))
+ ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
+ } else {
+ /* handle response */
+ ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp);
+ }
+
+ /* Check init command response */
+ if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) {
+ if (ret) {
+ dev_err(adapter->dev, "%s: cmd %#x failed during "
+ "initialization\n", __func__, cmdresp_no);
+ mwifiex_init_fw_complete(adapter);
+ return -1;
+ } else if (adapter->last_init_cmd == cmdresp_no)
+ adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE;
+ }
+
+ if (adapter->curr_cmd) {
+ if (adapter->curr_cmd->wait_q_enabled)
+ adapter->cmd_wait_q.status = ret;
+
+ mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
+
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->curr_cmd = NULL;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+ }
+
+ return ret;
+}
+
+/*
+ * This function handles the timeout of command sending.
+ *
+ * It will re-send the same command again.
+ */
+void
+mwifiex_cmd_timeout_func(unsigned long function_context)
+{
+ struct mwifiex_adapter *adapter =
+ (struct mwifiex_adapter *) function_context;
+ struct cmd_ctrl_node *cmd_node;
+
+ adapter->is_cmd_timedout = 1;
+ if (!adapter->curr_cmd) {
+ dev_dbg(adapter->dev, "cmd: empty curr_cmd\n");
+ return;
+ }
+ cmd_node = adapter->curr_cmd;
+ if (cmd_node) {
+ adapter->dbg.timeout_cmd_id =
+ adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index];
+ adapter->dbg.timeout_cmd_act =
+ adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index];
+ dev_err(adapter->dev,
+ "%s: Timeout cmd id = %#x, act = %#x\n", __func__,
+ adapter->dbg.timeout_cmd_id,
+ adapter->dbg.timeout_cmd_act);
+
+ dev_err(adapter->dev, "num_data_h2c_failure = %d\n",
+ adapter->dbg.num_tx_host_to_card_failure);
+ dev_err(adapter->dev, "num_cmd_h2c_failure = %d\n",
+ adapter->dbg.num_cmd_host_to_card_failure);
+
+ dev_err(adapter->dev, "is_cmd_timedout = %d\n",
+ adapter->is_cmd_timedout);
+ dev_err(adapter->dev, "num_tx_timeout = %d\n",
+ adapter->dbg.num_tx_timeout);
+
+ dev_err(adapter->dev, "last_cmd_index = %d\n",
+ adapter->dbg.last_cmd_index);
+ dev_err(adapter->dev, "last_cmd_id: %*ph\n",
+ (int)sizeof(adapter->dbg.last_cmd_id),
+ adapter->dbg.last_cmd_id);
+ dev_err(adapter->dev, "last_cmd_act: %*ph\n",
+ (int)sizeof(adapter->dbg.last_cmd_act),
+ adapter->dbg.last_cmd_act);
+
+ dev_err(adapter->dev, "last_cmd_resp_index = %d\n",
+ adapter->dbg.last_cmd_resp_index);
+ dev_err(adapter->dev, "last_cmd_resp_id: %*ph\n",
+ (int)sizeof(adapter->dbg.last_cmd_resp_id),
+ adapter->dbg.last_cmd_resp_id);
+
+ dev_err(adapter->dev, "last_event_index = %d\n",
+ adapter->dbg.last_event_index);
+ dev_err(adapter->dev, "last_event: %*ph\n",
+ (int)sizeof(adapter->dbg.last_event),
+ adapter->dbg.last_event);
+
+ dev_err(adapter->dev, "data_sent=%d cmd_sent=%d\n",
+ adapter->data_sent, adapter->cmd_sent);
+
+ dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n",
+ adapter->ps_mode, adapter->ps_state);
+
+ if (cmd_node->wait_q_enabled) {
+ adapter->cmd_wait_q.status = -ETIMEDOUT;
+ wake_up_interruptible(&adapter->cmd_wait_q.wait);
+ mwifiex_cancel_pending_ioctl(adapter);
+ }
+ }
+ if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
+ mwifiex_init_fw_complete(adapter);
+
+ if (adapter->if_ops.fw_dump)
+ adapter->if_ops.fw_dump(adapter);
+
+ if (adapter->if_ops.card_reset)
+ adapter->if_ops.card_reset(adapter);
+}
+
+/*
+ * This function cancels all the pending commands.
+ *
+ * The current command, all commands in command pending queue and all scan
+ * commands in scan pending queue are cancelled. All the completion callbacks
+ * are called with failure status to ensure cleanup.
+ */
+void
+mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
+ unsigned long flags, cmd_flags;
+ struct mwifiex_private *priv;
+ int i;
+
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
+ /* Cancel current cmd */
+ if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) {
+ adapter->curr_cmd->wait_q_enabled = false;
+ adapter->cmd_wait_q.status = -1;
+ mwifiex_complete_cmd(adapter, adapter->curr_cmd);
+ }
+ /* Cancel all pending command */
+ spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
+ list_for_each_entry_safe(cmd_node, tmp_node,
+ &adapter->cmd_pending_q, list) {
+ list_del(&cmd_node->list);
+ spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
+
+ if (cmd_node->wait_q_enabled) {
+ adapter->cmd_wait_q.status = -1;
+ mwifiex_complete_cmd(adapter, cmd_node);
+ cmd_node->wait_q_enabled = false;
+ }
+ mwifiex_recycle_cmd_node(adapter, cmd_node);
+ spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
+ }
+ spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+
+ /* Cancel all pending scan command */
+ spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
+ list_for_each_entry_safe(cmd_node, tmp_node,
+ &adapter->scan_pending_q, list) {
+ list_del(&cmd_node->list);
+
+ cmd_node->wait_q_enabled = false;
+ mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+ }
+ spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
+
+ if (adapter->scan_processing) {
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
+ adapter->scan_processing = false;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+ for (i = 0; i < adapter->priv_num; i++) {
+ priv = adapter->priv[i];
+ if (!priv)
+ continue;
+ if (priv->scan_request) {
+ dev_dbg(adapter->dev, "info: aborting scan\n");
+ cfg80211_scan_done(priv->scan_request, 1);
+ priv->scan_request = NULL;
+ }
+ }
+ }
+}
+
+/*
+ * This function cancels all pending commands that matches with
+ * the given IOCTL request.
+ *
+ * Both the current command buffer and the pending command queue are
+ * searched for matching IOCTL request. The completion callback of
+ * the matched command is called with failure status to ensure cleanup.
+ * In case of scan commands, all pending commands in scan pending queue
+ * are cancelled.
+ */
+void
+mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
+ unsigned long cmd_flags;
+ unsigned long scan_pending_q_flags;
+ struct mwifiex_private *priv;
+ int i;
+
+ if ((adapter->curr_cmd) &&
+ (adapter->curr_cmd->wait_q_enabled)) {
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
+ cmd_node = adapter->curr_cmd;
+ cmd_node->wait_q_enabled = false;
+ cmd_node->cmd_flag |= CMD_F_CANCELED;
+ mwifiex_recycle_cmd_node(adapter, cmd_node);
+ mwifiex_complete_cmd(adapter, adapter->curr_cmd);
+ adapter->curr_cmd = NULL;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+ }
+
+ /* Cancel all pending scan command */
+ spin_lock_irqsave(&adapter->scan_pending_q_lock,
+ scan_pending_q_flags);
+ list_for_each_entry_safe(cmd_node, tmp_node,
+ &adapter->scan_pending_q, list) {
+ list_del(&cmd_node->list);
+ cmd_node->wait_q_enabled = false;
+ mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+ }
+ spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
+ scan_pending_q_flags);
+
+ if (adapter->scan_processing) {
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
+ adapter->scan_processing = false;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
+ for (i = 0; i < adapter->priv_num; i++) {
+ priv = adapter->priv[i];
+ if (!priv)
+ continue;
+ if (priv->scan_request) {
+ dev_dbg(adapter->dev, "info: aborting scan\n");
+ cfg80211_scan_done(priv->scan_request, 1);
+ priv->scan_request = NULL;
+ }
+ }
+ }
+ adapter->cmd_wait_q.status = -1;
+}
+
+/*
+ * This function sends the sleep confirm command to firmware, if
+ * possible.
+ *
+ * The sleep confirm command cannot be issued if command response,
+ * data response or event response is awaiting handling, or if we
+ * are in the middle of sending a command, or expecting a command
+ * response.
+ */
+void
+mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
+{
+ if (!adapter->cmd_sent &&
+ !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
+ mwifiex_dnld_sleep_confirm_cmd(adapter);
+ else
+ dev_dbg(adapter->dev,
+ "cmd: Delay Sleep Confirm (%s%s%s)\n",
+ (adapter->cmd_sent) ? "D" : "",
+ (adapter->curr_cmd) ? "C" : "",
+ (IS_CARD_RX_RCVD(adapter)) ? "R" : "");
+}
+
+/*
+ * This function sends a Host Sleep activated event to applications.
+ *
+ * This event is generated by the driver, with a blank event body.
+ */
+void
+mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated)
+{
+ if (activated) {
+ if (priv->adapter->is_hs_configured) {
+ priv->adapter->hs_activated = true;
+ mwifiex_update_rxreor_flags(priv->adapter,
+ RXREOR_FORCE_NO_DROP);
+ dev_dbg(priv->adapter->dev, "event: hs_activated\n");
+ priv->adapter->hs_activate_wait_q_woken = true;
+ wake_up_interruptible(
+ &priv->adapter->hs_activate_wait_q);
+ } else {
+ dev_dbg(priv->adapter->dev, "event: HS not configured\n");
+ }
+ } else {
+ dev_dbg(priv->adapter->dev, "event: hs_deactivated\n");
+ priv->adapter->hs_activated = false;
+ }
+}
+
+/*
+ * This function handles the command response of a Host Sleep configuration
+ * command.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and setting the current host sleep activation status in driver.
+ *
+ * In case host sleep status change, the function generates an event to
+ * notify the applications.
+ */
+int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *resp)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg =
+ &resp->params.opt_hs_cfg;
+ uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
+
+ if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) &&
+ adapter->iface_type != MWIFIEX_USB) {
+ mwifiex_hs_activated_event(priv, true);
+ return 0;
+ } else {
+ dev_dbg(adapter->dev, "cmd: CMD_RESP: HS_CFG cmd reply"
+ " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
+ resp->result, conditions,
+ phs_cfg->params.hs_config.gpio,
+ phs_cfg->params.hs_config.gap);
+ }
+ if (conditions != HS_CFG_CANCEL) {
+ adapter->is_hs_configured = true;
+ if (adapter->iface_type == MWIFIEX_USB)
+ mwifiex_hs_activated_event(priv, true);
+ } else {
+ adapter->is_hs_configured = false;
+ if (adapter->hs_activated)
+ mwifiex_hs_activated_event(priv, false);
+ }
+
+ return 0;
+}
+
+/*
+ * This function wakes up the adapter and generates a Host Sleep
+ * cancel event on receiving the power up interrupt.
+ */
+void
+mwifiex_process_hs_config(struct mwifiex_adapter *adapter)
+{
+ dev_dbg(adapter->dev, "info: %s: auto cancelling host sleep"
+ " since there is interrupt from the firmware\n", __func__);
+
+ adapter->if_ops.wakeup(adapter);
+ adapter->hs_activated = false;
+ adapter->is_hs_configured = false;
+ adapter->is_suspended = false;
+ mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
+ MWIFIEX_BSS_ROLE_ANY),
+ false);
+}
+EXPORT_SYMBOL_GPL(mwifiex_process_hs_config);
+
+/*
+ * This function handles the command response of a sleep confirm command.
+ *
+ * The function sets the card state to SLEEP if the response indicates success.
+ */
+void
+mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter,
+ u8 *pbuf, u32 upld_len)
+{
+ struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf;
+ struct mwifiex_private *priv =
+ mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+ uint16_t result = le16_to_cpu(cmd->result);
+ uint16_t command = le16_to_cpu(cmd->command);
+ uint16_t seq_num = le16_to_cpu(cmd->seq_num);
+
+ if (!upld_len) {
+ dev_err(adapter->dev, "%s: cmd size is 0\n", __func__);
+ return;
+ }
+
+ dev_dbg(adapter->dev,
+ "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n",
+ command, result, le16_to_cpu(cmd->size), seq_num);
+
+ /* Get BSS number and corresponding priv */
+ priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num),
+ HostCmd_GET_BSS_TYPE(seq_num));
+ if (!priv)
+ priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
+
+ /* Update sequence number */
+ seq_num = HostCmd_GET_SEQ_NO(seq_num);
+ /* Clear RET_BIT from HostCmd */
+ command &= HostCmd_CMD_ID_MASK;
+
+ if (command != HostCmd_CMD_802_11_PS_MODE_ENH) {
+ dev_err(adapter->dev,
+ "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
+ __func__, command, result);
+ return;
+ }
+
+ if (result) {
+ dev_err(adapter->dev, "%s: sleep confirm cmd failed\n",
+ __func__);
+ adapter->pm_wakeup_card_req = false;
+ adapter->ps_state = PS_STATE_AWAKE;
+ return;
+ }
+ adapter->pm_wakeup_card_req = true;
+ if (adapter->is_hs_configured)
+ mwifiex_hs_activated_event(mwifiex_get_priv
+ (adapter, MWIFIEX_BSS_ROLE_ANY),
+ true);
+ adapter->ps_state = PS_STATE_SLEEP;
+ cmd->command = cpu_to_le16(command);
+ cmd->seq_num = cpu_to_le16(seq_num);
+}
+EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp);
+
+/*
+ * This function prepares an enhanced power mode command.
+ *
+ * This function can be used to disable power save or to configure
+ * power save with auto PS or STA PS or auto deep sleep.
+ *
+ * Preparation includes -
+ * - Setting command ID, action and proper size
+ * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
+ * auto deep sleep TLV (as required)
+ * - Ensuring correct endian-ness
+ */
+int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *cmd,
+ u16 cmd_action, uint16_t ps_bitmap,
+ struct mwifiex_ds_auto_ds *auto_ds)
+{
+ struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh =
+ &cmd->params.psmode_enh;
+ u8 *tlv;
+ u16 cmd_size = 0;
+
+ cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
+ if (cmd_action == DIS_AUTO_PS) {
+ psmode_enh->action = cpu_to_le16(DIS_AUTO_PS);
+ psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
+ cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
+ sizeof(psmode_enh->params.ps_bitmap));
+ } else if (cmd_action == GET_PS) {
+ psmode_enh->action = cpu_to_le16(GET_PS);
+ psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
+ cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
+ sizeof(psmode_enh->params.ps_bitmap));
+ } else if (cmd_action == EN_AUTO_PS) {
+ psmode_enh->action = cpu_to_le16(EN_AUTO_PS);
+ psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
+ cmd_size = S_DS_GEN + sizeof(psmode_enh->action) +
+ sizeof(psmode_enh->params.ps_bitmap);
+ tlv = (u8 *) cmd + cmd_size;
+ if (ps_bitmap & BITMAP_STA_PS) {
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct mwifiex_ie_types_ps_param *ps_tlv =
+ (struct mwifiex_ie_types_ps_param *) tlv;
+ struct mwifiex_ps_param *ps_mode = &ps_tlv->param;
+ ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM);
+ ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) -
+ sizeof(struct mwifiex_ie_types_header));
+ cmd_size += sizeof(*ps_tlv);
+ tlv += sizeof(*ps_tlv);
+ dev_dbg(adapter->dev, "cmd: PS Command: Enter PS\n");
+ ps_mode->null_pkt_interval =
+ cpu_to_le16(adapter->null_pkt_interval);
+ ps_mode->multiple_dtims =
+ cpu_to_le16(adapter->multiple_dtim);
+ ps_mode->bcn_miss_timeout =
+ cpu_to_le16(adapter->bcn_miss_time_out);
+ ps_mode->local_listen_interval =
+ cpu_to_le16(adapter->local_listen_interval);
+ ps_mode->adhoc_wake_period =
+ cpu_to_le16(adapter->adhoc_awake_period);
+ ps_mode->delay_to_ps =
+ cpu_to_le16(adapter->delay_to_ps);
+ ps_mode->mode = cpu_to_le16(adapter->enhanced_ps_mode);
+
+ }
+ if (ps_bitmap & BITMAP_AUTO_DS) {
+ struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv =
+ (struct mwifiex_ie_types_auto_ds_param *) tlv;
+ u16 idletime = 0;
+
+ auto_ds_tlv->header.type =
+ cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM);
+ auto_ds_tlv->header.len =
+ cpu_to_le16(sizeof(*auto_ds_tlv) -
+ sizeof(struct mwifiex_ie_types_header));
+ cmd_size += sizeof(*auto_ds_tlv);
+ tlv += sizeof(*auto_ds_tlv);
+ if (auto_ds)
+ idletime = auto_ds->idle_time;
+ dev_dbg(priv->adapter->dev,
+ "cmd: PS Command: Enter Auto Deep Sleep\n");
+ auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime);
+ }
+ cmd->size = cpu_to_le16(cmd_size);
+ }
+ return 0;
+}
+
+/*
+ * This function handles the command response of an enhanced power mode
+ * command.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and setting the current enhanced power mode in driver.
+ */
+int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *resp,
+ struct mwifiex_ds_pm_cfg *pm_cfg)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct host_cmd_ds_802_11_ps_mode_enh *ps_mode =
+ &resp->params.psmode_enh;
+ uint16_t action = le16_to_cpu(ps_mode->action);
+ uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap);
+ uint16_t auto_ps_bitmap =
+ le16_to_cpu(ps_mode->params.ps_bitmap);
+
+ dev_dbg(adapter->dev,
+ "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
+ __func__, resp->result, action);
+ if (action == EN_AUTO_PS) {
+ if (auto_ps_bitmap & BITMAP_AUTO_DS) {
+ dev_dbg(adapter->dev, "cmd: Enabled auto deep sleep\n");
+ priv->adapter->is_deep_sleep = true;
+ }
+ if (auto_ps_bitmap & BITMAP_STA_PS) {
+ dev_dbg(adapter->dev, "cmd: Enabled STA power save\n");
+ if (adapter->sleep_period.period)
+ dev_dbg(adapter->dev,
+ "cmd: set to uapsd/pps mode\n");
+ }
+ } else if (action == DIS_AUTO_PS) {
+ if (ps_bitmap & BITMAP_AUTO_DS) {
+ priv->adapter->is_deep_sleep = false;
+ dev_dbg(adapter->dev, "cmd: Disabled auto deep sleep\n");
+ }
+ if (ps_bitmap & BITMAP_STA_PS) {
+ dev_dbg(adapter->dev, "cmd: Disabled STA power save\n");
+ if (adapter->sleep_period.period) {
+ adapter->delay_null_pkt = false;
+ adapter->tx_lock_flag = false;
+ adapter->pps_uapsd_mode = false;
+ }
+ }
+ } else if (action == GET_PS) {
+ if (ps_bitmap & BITMAP_STA_PS)
+ adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
+ else
+ adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
+
+ dev_dbg(adapter->dev, "cmd: ps_bitmap=%#x\n", ps_bitmap);
+
+ if (pm_cfg) {
+ /* This section is for get power save mode */
+ if (ps_bitmap & BITMAP_STA_PS)
+ pm_cfg->param.ps_mode = 1;
+ else
+ pm_cfg->param.ps_mode = 0;
+ }
+ }
+ return 0;
+}
+
+/*
+ * This function prepares command to get hardware specifications.
+ *
+ * Preparation includes -
+ * - Setting command ID, action and proper size
+ * - Setting permanent address parameter
+ * - Ensuring correct endian-ness
+ */
+int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *cmd)
+{
+ struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec;
+
+ cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC);
+ cmd->size =
+ cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN);
+ memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN);
+
+ return 0;
+}
+
+/*
+ * This function handles the command response of get hardware
+ * specifications.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving/updating the following parameters in driver -
+ * - Firmware capability information
+ * - Firmware band settings
+ * - Ad-hoc start band and channel
+ * - Ad-hoc 11n activation status
+ * - Firmware release number
+ * - Number of antennas
+ * - Hardware address
+ * - Hardware interface version
+ * - Firmware version
+ * - Region code
+ * - 11n capabilities
+ * - MCS support fields
+ * - MP end port
+ */
+int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *resp)
+{
+ struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec;
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct mwifiex_ie_types_header *tlv;
+ struct hw_spec_api_rev *api_rev;
+ u16 resp_size, api_id;
+ int i, left_len, parsed_len = 0;
+
+ adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info);
+
+ if (IS_SUPPORT_MULTI_BANDS(adapter))
+ adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter);
+ else
+ adapter->fw_bands = BAND_B;
+
+ adapter->config_bands = adapter->fw_bands;
+
+ if (adapter->fw_bands & BAND_A) {
+ if (adapter->fw_bands & BAND_GN) {
+ adapter->config_bands |= BAND_AN;
+ adapter->fw_bands |= BAND_AN;
+ }
+ if (adapter->fw_bands & BAND_AN) {
+ adapter->adhoc_start_band = BAND_A | BAND_AN;
+ adapter->adhoc_11n_enabled = true;
+ } else {
+ adapter->adhoc_start_band = BAND_A;
+ }
+ priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A;
+ } else if (adapter->fw_bands & BAND_GN) {
+ adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
+ priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
+ adapter->adhoc_11n_enabled = true;
+ } else if (adapter->fw_bands & BAND_G) {
+ adapter->adhoc_start_band = BAND_G | BAND_B;
+ priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
+ } else if (adapter->fw_bands & BAND_B) {
+ adapter->adhoc_start_band = BAND_B;
+ priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
+ }
+
+ adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number);
+ adapter->fw_api_ver = (adapter->fw_release_number >> 16) & 0xff;
+ adapter->number_of_antenna = le16_to_cpu(hw_spec->number_of_antenna);
+
+ if (le32_to_cpu(hw_spec->dot_11ac_dev_cap)) {
+ adapter->is_hw_11ac_capable = true;
+
+ /* Copy 11AC cap */
+ adapter->hw_dot_11ac_dev_cap =
+ le32_to_cpu(hw_spec->dot_11ac_dev_cap);
+ adapter->usr_dot_11ac_dev_cap_bg = adapter->hw_dot_11ac_dev_cap
+ & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK;
+ adapter->usr_dot_11ac_dev_cap_a = adapter->hw_dot_11ac_dev_cap
+ & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK;
+
+ /* Copy 11AC mcs */
+ adapter->hw_dot_11ac_mcs_support =
+ le32_to_cpu(hw_spec->dot_11ac_mcs_support);
+ adapter->usr_dot_11ac_mcs_support =
+ adapter->hw_dot_11ac_mcs_support;
+ } else {
+ adapter->is_hw_11ac_capable = false;
+ }
+
+ resp_size = le16_to_cpu(resp->size) - S_DS_GEN;
+ if (resp_size > sizeof(struct host_cmd_ds_get_hw_spec)) {
+ /* we have variable HW SPEC information */
+ left_len = resp_size - sizeof(struct host_cmd_ds_get_hw_spec);
+ while (left_len > sizeof(struct mwifiex_ie_types_header)) {
+ tlv = (void *)&hw_spec->tlvs + parsed_len;
+ switch (le16_to_cpu(tlv->type)) {
+ case TLV_TYPE_API_REV:
+ api_rev = (struct hw_spec_api_rev *)tlv;
+ api_id = le16_to_cpu(api_rev->api_id);
+ switch (api_id) {
+ case KEY_API_VER_ID:
+ adapter->key_api_major_ver =
+ api_rev->major_ver;
+ adapter->key_api_minor_ver =
+ api_rev->minor_ver;
+ dev_dbg(adapter->dev,
+ "key_api v%d.%d\n",
+ adapter->key_api_major_ver,
+ adapter->key_api_minor_ver);
+ break;
+ case FW_API_VER_ID:
+ adapter->fw_api_ver =
+ api_rev->major_ver;
+ dev_dbg(adapter->dev,
+ "Firmware api version %d\n",
+ adapter->fw_api_ver);
+ break;
+ default:
+ dev_warn(adapter->dev,
+ "Unknown api_id: %d\n",
+ api_id);
+ break;
+ }
+ break;
+ default:
+ dev_warn(adapter->dev,
+ "Unknown GET_HW_SPEC TLV type: %#x\n",
+ le16_to_cpu(tlv->type));
+ break;
+ }
+ parsed_len += le16_to_cpu(tlv->len) +
+ sizeof(struct mwifiex_ie_types_header);
+ left_len -= le16_to_cpu(tlv->len) +
+ sizeof(struct mwifiex_ie_types_header);
+ }
+ }
+
+ dev_dbg(adapter->dev, "info: GET_HW_SPEC: fw_release_number- %#x\n",
+ adapter->fw_release_number);
+ dev_dbg(adapter->dev, "info: GET_HW_SPEC: permanent addr: %pM\n",
+ hw_spec->permanent_addr);
+ dev_dbg(adapter->dev,
+ "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
+ le16_to_cpu(hw_spec->hw_if_version),
+ le16_to_cpu(hw_spec->version));
+
+ ether_addr_copy(priv->adapter->perm_addr, hw_spec->permanent_addr);
+ adapter->region_code = le16_to_cpu(hw_spec->region_code);
+
+ for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++)
+ /* Use the region code to search for the index */
+ if (adapter->region_code == region_code_index[i])
+ break;
+
+ /* If it's unidentified region code, use the default (USA) */
+ if (i >= MWIFIEX_MAX_REGION_CODE) {
+ adapter->region_code = 0x10;
+ dev_dbg(adapter->dev,
+ "cmd: unknown region code, use default (USA)\n");
+ }
+
+ adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap);
+ adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support;
+ adapter->user_dev_mcs_support = adapter->hw_dev_mcs_support;
+
+ if (adapter->if_ops.update_mp_end_port)
+ adapter->if_ops.update_mp_end_port(adapter,
+ le16_to_cpu(hw_spec->mp_end_port));
+
+ if (adapter->fw_api_ver == MWIFIEX_FW_V15)
+ adapter->scan_chan_gap_enabled = true;
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff