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Date: Fri, 21 Jun 2024 15:51:38 +0800
From: David Lin <yu-hao.lin@....com>
To: linux-wireless@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
briannorris@...omium.org,
kvalo@...nel.org,
francesco@...cini.it,
tsung-hsien.hsieh@....com,
David Lin <yu-hao.lin@....com>
Subject: [PATCH 13/43] wifi: nxpwifi: add cmdevt.c
Signed-off-by: David Lin <yu-hao.lin@....com>
---
drivers/net/wireless/nxp/nxpwifi/cmdevt.c | 1285 +++++++++++++++++++++
1 file changed, 1285 insertions(+)
create mode 100644 drivers/net/wireless/nxp/nxpwifi/cmdevt.c
diff --git a/drivers/net/wireless/nxp/nxpwifi/cmdevt.c b/drivers/net/wireless/nxp/nxpwifi/cmdevt.c
new file mode 100644
index 000000000000..fd05a1ecd127
--- /dev/null
+++ b/drivers/net/wireless/nxp/nxpwifi/cmdevt.c
@@ -0,0 +1,1285 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: commands and events
+ *
+ * Copyright 2011-2024 NXP
+ */
+
+#include <asm/unaligned.h>
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "cmdevt.h"
+#include "wmm.h"
+#include "11n.h"
+
+static void nxpwifi_cancel_pending_ioctl(struct nxpwifi_adapter *adapter);
+
+/* 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
+nxpwifi_init_cmd_node(struct nxpwifi_private *priv,
+ struct cmd_ctrl_node *cmd_node,
+ u32 cmd_no, void *data_buf, bool sync)
+{
+ cmd_node->priv = priv;
+ cmd_node->cmd_no = cmd_no;
+
+ 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;
+ cmd_node->cmd_resp = NULL;
+}
+
+/* This function returns a command node from the free queue depending upon
+ * availability.
+ */
+static struct cmd_ctrl_node *
+nxpwifi_get_cmd_node(struct nxpwifi_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node;
+
+ spin_lock_bh(&adapter->cmd_free_q_lock);
+ if (list_empty(&adapter->cmd_free_q)) {
+ nxpwifi_dbg(adapter, ERROR,
+ "GET_CMD_NODE: cmd node not available\n");
+ spin_unlock_bh(&adapter->cmd_free_q_lock);
+ return NULL;
+ }
+ cmd_node = list_first_entry(&adapter->cmd_free_q,
+ struct cmd_ctrl_node, list);
+ list_del(&cmd_node->list);
+ spin_unlock_bh(&adapter->cmd_free_q_lock);
+
+ 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
+nxpwifi_clean_cmd_node(struct nxpwifi_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ cmd_node->cmd_no = 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 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.
+ */
+static void
+nxpwifi_insert_cmd_to_free_q(struct nxpwifi_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ if (!cmd_node)
+ return;
+
+ if (cmd_node->wait_q_enabled)
+ nxpwifi_complete_cmd(adapter, cmd_node);
+ /* Clean the node */
+ nxpwifi_clean_cmd_node(adapter, cmd_node);
+
+ /* Insert node into cmd_free_q */
+ spin_lock_bh(&adapter->cmd_free_q_lock);
+ list_add_tail(&cmd_node->list, &adapter->cmd_free_q);
+ spin_unlock_bh(&adapter->cmd_free_q_lock);
+}
+
+/* This function reuses a command node. */
+void nxpwifi_recycle_cmd_node(struct nxpwifi_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ struct host_cmd_ds_command *host_cmd = (void *)cmd_node->cmd_skb->data;
+
+ nxpwifi_insert_cmd_to_free_q(adapter, cmd_node);
+
+ atomic_dec(&adapter->cmd_pending);
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n",
+ le16_to_cpu(host_cmd->command),
+ atomic_read(&adapter->cmd_pending));
+}
+
+/* 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 nxpwifi_cmd_host_cmd(struct nxpwifi_private *priv,
+ struct cmd_ctrl_node *cmd_node)
+{
+ struct host_cmd_ds_command *cmd;
+ struct nxpwifi_ds_misc_cmd *pcmd_ptr;
+
+ cmd = (struct host_cmd_ds_command *)cmd_node->skb->data;
+ pcmd_ptr = (struct nxpwifi_ds_misc_cmd *)cmd_node->data_buf;
+
+ /* Copy the HOST command to command buffer */
+ memcpy(cmd, pcmd_ptr->cmd, pcmd_ptr->len);
+ nxpwifi_dbg(priv->adapter, CMD,
+ "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 nxpwifi_dnld_cmd_to_fw(struct nxpwifi_private *priv,
+ struct cmd_ctrl_node *cmd_node)
+{
+ struct nxpwifi_adapter *adapter = priv->adapter;
+ int ret;
+ struct host_cmd_ds_command *host_cmd;
+ u16 cmd_code;
+ u16 cmd_size;
+
+ if (!adapter || !cmd_node)
+ return -1;
+
+ host_cmd = (struct host_cmd_ds_command *)(cmd_node->cmd_skb->data);
+
+ /* Sanity test */
+ if (host_cmd->size == 0) {
+ nxpwifi_dbg(adapter, ERROR,
+ "DNLD_CMD: host_cmd is null\t"
+ "or cmd size is 0, not sending\n");
+ if (cmd_node->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+ nxpwifi_recycle_cmd_node(adapter, cmd_node);
+ return -1;
+ }
+
+ cmd_code = le16_to_cpu(host_cmd->command);
+ cmd_node->cmd_no = cmd_code;
+ cmd_size = le16_to_cpu(host_cmd->size);
+
+ if (adapter->hw_status == NXPWIFI_HW_STATUS_RESET &&
+ cmd_code != HOST_CMD_FUNC_SHUTDOWN &&
+ cmd_code != HOST_CMD_FUNC_INIT) {
+ nxpwifi_dbg(adapter, ERROR,
+ "DNLD_CMD: FW in reset state, ignore cmd %#x\n",
+ cmd_code);
+ nxpwifi_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(HOST_SET_SEQ_NO_BSS_INFO
+ (adapter->seq_num,
+ cmd_node->priv->bss_num,
+ cmd_node->priv->bss_type));
+
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ adapter->curr_cmd = cmd_node;
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+
+ /* 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);
+
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: DNLD_CMD: %#x, act %#x, len %d, seqno %#x\n",
+ cmd_code,
+ get_unaligned_le16((u8 *)host_cmd + S_DS_GEN),
+ cmd_size, le16_to_cpu(host_cmd->seq_num));
+ nxpwifi_dbg_dump(adapter, CMD_D, "cmd buffer:", host_cmd, cmd_size);
+
+ skb_push(cmd_node->cmd_skb, adapter->intf_hdr_len);
+ ret = adapter->if_ops.host_to_card(adapter, NXPWIFI_TYPE_CMD,
+ cmd_node->cmd_skb, NULL);
+ skb_pull(cmd_node->cmd_skb, adapter->intf_hdr_len);
+
+ if (ret == -1) {
+ nxpwifi_dbg(adapter, ERROR,
+ "DNLD_CMD: host to card failed\n");
+ if (cmd_node->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+ nxpwifi_recycle_cmd_node(adapter, adapter->curr_cmd);
+
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ adapter->curr_cmd = NULL;
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+
+ 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] =
+ get_unaligned_le16((u8 *)host_cmd + S_DS_GEN);
+
+ /* Setup the timer after transmit command, except that specific
+ * command might not have command response.
+ */
+ if (cmd_code != HOST_CMD_FW_DUMP_EVENT)
+ mod_timer(&adapter->cmd_timer,
+ jiffies + msecs_to_jiffies(NXPWIFI_TIMER_10S));
+
+ /* Clear BSS_NO_BITS from HOST */
+ cmd_code &= HOST_CMD_ID_MASK;
+
+ 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 nxpwifi_dnld_sleep_confirm_cmd(struct nxpwifi_adapter *adapter)
+{
+ int ret;
+ struct nxpwifi_private *priv;
+ struct nxpwifi_opt_sleep_confirm *sleep_cfm_buf =
+ (struct nxpwifi_opt_sleep_confirm *)
+ adapter->sleep_cfm->data;
+
+ priv = nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_ANY);
+
+ adapter->seq_num++;
+ sleep_cfm_buf->seq_num =
+ cpu_to_le16(HOST_SET_SEQ_NO_BSS_INFO
+ (adapter->seq_num, priv->bss_num,
+ priv->bss_type));
+
+ nxpwifi_dbg(adapter, CMD,
+ "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));
+ nxpwifi_dbg_dump(adapter, CMD_D, "SLEEP_CFM buffer: ", sleep_cfm_buf,
+ le16_to_cpu(sleep_cfm_buf->size));
+
+ skb_push(adapter->sleep_cfm, adapter->intf_hdr_len);
+ ret = adapter->if_ops.host_to_card(adapter, NXPWIFI_TYPE_CMD,
+ adapter->sleep_cfm, NULL);
+ skb_pull(adapter->sleep_cfm, adapter->intf_hdr_len);
+
+ if (ret == -1) {
+ nxpwifi_dbg(adapter, ERROR, "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) &&
+ (test_bit(NXPWIFI_IS_HS_CONFIGURED, &adapter->work_flags) &&
+ !adapter->sleep_period.period)) {
+ adapter->pm_wakeup_card_req = true;
+ nxpwifi_hs_activated_event(nxpwifi_get_priv
+ (adapter, NXPWIFI_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 nxpwifi_alloc_cmd_buffer(struct nxpwifi_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_array;
+ u32 i;
+
+ /* Allocate and initialize struct cmd_ctrl_node */
+ cmd_array = kcalloc(NXPWIFI_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 < NXPWIFI_NUM_OF_CMD_BUFFER; i++) {
+ cmd_array[i].skb = dev_alloc_skb(NXPWIFI_SIZE_OF_CMD_BUFFER);
+ if (!cmd_array[i].skb)
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < NXPWIFI_NUM_OF_CMD_BUFFER; i++)
+ nxpwifi_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.
+ */
+void nxpwifi_free_cmd_buffer(struct nxpwifi_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_array;
+ u32 i;
+
+ /* Need to check if cmd pool is allocated or not */
+ if (!adapter->cmd_pool) {
+ nxpwifi_dbg(adapter, FATAL,
+ "info: FREE_CMD_BUF: cmd_pool is null\n");
+ return;
+ }
+
+ cmd_array = adapter->cmd_pool;
+
+ /* Release shared memory buffers */
+ for (i = 0; i < NXPWIFI_NUM_OF_CMD_BUFFER; i++) {
+ if (cmd_array[i].skb) {
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: free cmd buffer %d\n", i);
+ dev_kfree_skb_any(cmd_array[i].skb);
+ }
+ if (!cmd_array[i].resp_skb)
+ continue;
+
+ dev_kfree_skb_any(cmd_array[i].resp_skb);
+ }
+ /* Release struct cmd_ctrl_node */
+ if (adapter->cmd_pool) {
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: free cmd pool\n");
+ kfree(adapter->cmd_pool);
+ adapter->cmd_pool = NULL;
+ }
+}
+
+/* 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 nxpwifi_process_event(struct nxpwifi_adapter *adapter)
+{
+ int ret, i;
+ struct nxpwifi_private *priv =
+ nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_ANY);
+ struct sk_buff *skb = adapter->event_skb;
+ u32 eventcause;
+ struct nxpwifi_rxinfo *rx_info;
+
+ if ((adapter->event_cause & EVENT_ID_MASK) == EVENT_RADAR_DETECTED) {
+ for (i = 0; i < adapter->priv_num; i++) {
+ priv = adapter->priv[i];
+ if (priv && nxpwifi_is_11h_active(priv)) {
+ adapter->event_cause |=
+ ((priv->bss_num & 0xff) << 16) |
+ ((priv->bss_type & 0xff) << 24);
+ break;
+ }
+ }
+ }
+
+ eventcause = adapter->event_cause;
+
+ /* 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 = nxpwifi_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause),
+ EVENT_GET_BSS_TYPE(eventcause));
+ if (!priv)
+ priv = nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_ANY);
+
+ /* Clear BSS_NO_BITS from event */
+ eventcause &= EVENT_ID_MASK;
+ adapter->event_cause = eventcause;
+
+ if (skb) {
+ rx_info = NXPWIFI_SKB_RXCB(skb);
+ memset(rx_info, 0, sizeof(*rx_info));
+ rx_info->bss_num = priv->bss_num;
+ rx_info->bss_type = priv->bss_type;
+ nxpwifi_dbg_dump(adapter, EVT_D, "Event Buf:",
+ skb->data, skb->len);
+ }
+
+ nxpwifi_dbg(adapter, EVENT, "EVENT: cause: %#x\n", eventcause);
+
+ if (priv->bss_role == NXPWIFI_BSS_ROLE_UAP)
+ ret = nxpwifi_process_uap_event(priv);
+ else
+ ret = nxpwifi_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 nxpwifi_send_cmd(struct nxpwifi_private *priv, u16 cmd_no,
+ u16 cmd_action, u32 cmd_oid, void *data_buf, bool sync)
+{
+ int ret;
+ struct nxpwifi_adapter *adapter = priv->adapter;
+ struct cmd_ctrl_node *cmd_node;
+
+ if (!adapter) {
+ pr_err("PREP_CMD: adapter is NULL\n");
+ return -1;
+ }
+
+ if (test_bit(NXPWIFI_IS_SUSPENDED, &adapter->work_flags)) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: device in suspended state\n");
+ return -1;
+ }
+
+ if (test_bit(NXPWIFI_IS_HS_ENABLING, &adapter->work_flags) &&
+ cmd_no != HOST_CMD_802_11_HS_CFG_ENH) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: host entering sleep state\n");
+ return -1;
+ }
+
+ if (test_bit(NXPWIFI_SURPRISE_REMOVED, &adapter->work_flags)) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: card is removed\n");
+ return -1;
+ }
+
+ if (test_bit(NXPWIFI_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: FW is in bad state\n");
+ return -1;
+ }
+
+ if (adapter->hw_status == NXPWIFI_HW_STATUS_RESET) {
+ if (cmd_no != HOST_CMD_FUNC_INIT) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: FW in reset state\n");
+ return -1;
+ }
+ }
+
+ if (priv->adapter->hs_activated_manually &&
+ cmd_no != HOST_CMD_802_11_HS_CFG_ENH) {
+ nxpwifi_cancel_hs(priv, NXPWIFI_ASYNC_CMD);
+ priv->adapter->hs_activated_manually = false;
+ }
+
+ /* Get a new command node */
+ cmd_node = nxpwifi_get_cmd_node(adapter);
+
+ if (!cmd_node) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: no free cmd node\n");
+ return -1;
+ }
+
+ /* Initialize the command node */
+ nxpwifi_init_cmd_node(priv, cmd_node, cmd_no, data_buf, sync);
+
+ if (!cmd_node->cmd_skb) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: no free cmd buf\n");
+ return -1;
+ }
+
+ skb_put_zero(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command));
+
+ /* Prepare command */
+ if (cmd_no) {
+ switch (cmd_no) {
+ case HOST_CMD_UAP_SYS_CONFIG:
+ case HOST_CMD_UAP_BSS_START:
+ case HOST_CMD_UAP_BSS_STOP:
+ case HOST_CMD_UAP_STA_DEAUTH:
+ case HOST_CMD_APCMD_SYS_RESET:
+ case HOST_CMD_APCMD_STA_LIST:
+ case HOST_CMD_CHAN_REPORT_REQUEST:
+ case HOST_CMD_ADD_NEW_STATION:
+ ret = nxpwifi_uap_prepare_cmd(priv, cmd_node,
+ cmd_action, cmd_oid);
+ break;
+ default:
+ ret = nxpwifi_sta_prepare_cmd(priv, cmd_node,
+ cmd_action, cmd_oid);
+ break;
+ }
+ } else {
+ ret = nxpwifi_cmd_host_cmd(priv, cmd_node);
+ cmd_node->cmd_flag |= CMD_F_HOSTCMD;
+ }
+
+ /* Return error, since the command preparation failed */
+ if (ret) {
+ nxpwifi_dbg(adapter, ERROR,
+ "PREP_CMD: cmd %#x preparation failed\n",
+ cmd_no);
+ nxpwifi_insert_cmd_to_free_q(adapter, cmd_node);
+ return -1;
+ }
+
+ /* Send command */
+ if (cmd_no == HOST_CMD_802_11_SCAN ||
+ cmd_no == HOST_CMD_802_11_SCAN_EXT) {
+ nxpwifi_queue_scan_cmd(priv, cmd_node);
+ } else {
+ nxpwifi_insert_cmd_to_pending_q(adapter, cmd_node);
+ queue_work(adapter->workqueue, &adapter->main_work);
+ if (cmd_node->wait_q_enabled)
+ ret = nxpwifi_wait_queue_complete(adapter, cmd_node);
+ }
+
+ return ret;
+}
+
+/* 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
+nxpwifi_insert_cmd_to_pending_q(struct nxpwifi_adapter *adapter,
+ struct cmd_ctrl_node *cmd_node)
+{
+ struct host_cmd_ds_command *host_cmd = NULL;
+ u16 command;
+ bool add_tail = true;
+
+ host_cmd = (struct host_cmd_ds_command *)(cmd_node->cmd_skb->data);
+ if (!host_cmd) {
+ nxpwifi_dbg(adapter, ERROR, "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 == HOST_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;
+ }
+ }
+
+ /* Same with exit host sleep cmd, luckily that can't happen at the same time as EXIT_PS */
+ if (command == HOST_CMD_802_11_HS_CFG_ENH) {
+ struct host_cmd_ds_802_11_hs_cfg_enh *hs_cfg =
+ &host_cmd->params.opt_hs_cfg;
+
+ if (le16_to_cpu(hs_cfg->action) == HS_ACTIVATE)
+ add_tail = false;
+ }
+
+ spin_lock_bh(&adapter->cmd_pending_q_lock);
+ 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_bh(&adapter->cmd_pending_q_lock);
+
+ atomic_inc(&adapter->cmd_pending);
+ nxpwifi_dbg(adapter, CMD,
+ "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 nxpwifi_exec_next_cmd(struct nxpwifi_adapter *adapter)
+{
+ struct nxpwifi_private *priv;
+ struct cmd_ctrl_node *cmd_node;
+ int ret = 0;
+ struct host_cmd_ds_command *host_cmd;
+
+ /* Check if already in processing */
+ if (adapter->curr_cmd) {
+ nxpwifi_dbg(adapter, FATAL,
+ "EXEC_NEXT_CMD: cmd in processing\n");
+ return -1;
+ }
+
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ /* Check if any command is pending */
+ spin_lock_bh(&adapter->cmd_pending_q_lock);
+ if (list_empty(&adapter->cmd_pending_q)) {
+ spin_unlock_bh(&adapter->cmd_pending_q_lock);
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+ return 0;
+ }
+ cmd_node = list_first_entry(&adapter->cmd_pending_q,
+ struct cmd_ctrl_node, list);
+
+ host_cmd = (struct host_cmd_ds_command *)(cmd_node->cmd_skb->data);
+ priv = cmd_node->priv;
+
+ if (adapter->ps_state != PS_STATE_AWAKE) {
+ nxpwifi_dbg(adapter, ERROR,
+ "%s: cannot send cmd in sleep state,\t"
+ "this should not happen\n", __func__);
+ spin_unlock_bh(&adapter->cmd_pending_q_lock);
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+ return ret;
+ }
+
+ list_del(&cmd_node->list);
+ spin_unlock_bh(&adapter->cmd_pending_q_lock);
+
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+ ret = nxpwifi_dnld_cmd_to_fw(priv, cmd_node);
+ priv = nxpwifi_get_priv(adapter, NXPWIFI_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(HOST_CMD_802_11_HS_CFG_ENH)) {
+ if (adapter->hs_activated) {
+ clear_bit(NXPWIFI_IS_HS_CONFIGURED,
+ &adapter->work_flags);
+ nxpwifi_hs_activated_event(priv, false);
+ }
+ }
+
+ return ret;
+}
+
+static void
+nxpwifi_process_cmdresp_error(struct nxpwifi_private *priv,
+ struct host_cmd_ds_command *resp)
+{
+ struct nxpwifi_adapter *adapter = priv->adapter;
+ struct host_cmd_ds_802_11_ps_mode_enh *pm;
+
+ nxpwifi_dbg(adapter, ERROR,
+ "CMD_RESP: cmd %#x error, result=%#x\n",
+ resp->command, resp->result);
+
+ if (adapter->curr_cmd->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+
+ switch (le16_to_cpu(resp->command)) {
+ case HOST_CMD_802_11_PS_MODE_ENH:
+ pm = &resp->params.psmode_enh;
+ nxpwifi_dbg(adapter, ERROR,
+ "PS_MODE_ENH cmd failed: result=0x%x action=0x%X\n",
+ resp->result, le16_to_cpu(pm->action));
+ break;
+ case HOST_CMD_802_11_SCAN:
+ case HOST_CMD_802_11_SCAN_EXT:
+ nxpwifi_cancel_scan(adapter);
+ break;
+
+ case HOST_CMD_MAC_CONTROL:
+ break;
+
+ case HOST_CMD_SDIO_SP_RX_AGGR_CFG:
+ nxpwifi_dbg(adapter, MSG,
+ "SDIO RX single-port aggregation Not support\n");
+ break;
+
+ default:
+ break;
+ }
+ /* Handling errors here */
+ nxpwifi_recycle_cmd_node(adapter, adapter->curr_cmd);
+
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ adapter->curr_cmd = NULL;
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+}
+
+/* This function handles the command response.
+ *
+ * After processing, the function cleans the command node and puts
+ * it back to the command free queue.
+ */
+int nxpwifi_process_cmdresp(struct nxpwifi_adapter *adapter)
+{
+ struct host_cmd_ds_command *resp;
+ struct nxpwifi_private *priv =
+ nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_ANY);
+ int ret = 0;
+ u16 orig_cmdresp_no;
+ u16 cmdresp_no;
+ u16 cmdresp_result;
+
+ if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) {
+ resp = (struct host_cmd_ds_command *)adapter->upld_buf;
+ nxpwifi_dbg(adapter, ERROR,
+ "CMD_RESP: NULL curr_cmd, %#x\n",
+ le16_to_cpu(resp->command));
+ return -1;
+ }
+
+ resp = (struct host_cmd_ds_command *)adapter->curr_cmd->resp_skb->data;
+ orig_cmdresp_no = le16_to_cpu(resp->command);
+ cmdresp_no = (orig_cmdresp_no & HOST_CMD_ID_MASK);
+
+ if (adapter->curr_cmd->cmd_no != cmdresp_no) {
+ nxpwifi_dbg(adapter, ERROR,
+ "cmdresp error: cmd=0x%x cmd_resp=0x%x\n",
+ adapter->curr_cmd->cmd_no, cmdresp_no);
+ return -1;
+ }
+ /* Now we got response from FW, cancel the command timer */
+ del_timer_sync(&adapter->cmd_timer);
+ clear_bit(NXPWIFI_IS_CMD_TIMEDOUT, &adapter->work_flags);
+
+ if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
+ /* Copy original response back to response buffer */
+ struct nxpwifi_ds_misc_cmd *hostcmd;
+ u16 size = le16_to_cpu(resp->size);
+
+ nxpwifi_dbg(adapter, INFO,
+ "info: host cmd resp size = %d\n", size);
+ size = min_t(u16, size, NXPWIFI_SIZE_OF_CMD_BUFFER);
+ if (adapter->curr_cmd->data_buf) {
+ hostcmd = adapter->curr_cmd->data_buf;
+ hostcmd->len = size;
+ memcpy(hostcmd->cmd, resp, size);
+ }
+ }
+
+ /* Get BSS number and corresponding priv */
+ priv = nxpwifi_get_priv_by_id
+ (adapter, HOST_GET_BSS_NO(le16_to_cpu(resp->seq_num)),
+ HOST_GET_BSS_TYPE(le16_to_cpu(resp->seq_num)));
+ if (!priv)
+ priv = nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_ANY);
+ /* Clear RET_BIT from HOST */
+ resp->command = cpu_to_le16(orig_cmdresp_no & HOST_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;
+
+ nxpwifi_dbg(adapter, CMD,
+ "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));
+ nxpwifi_dbg_dump(adapter, CMD_D, "CMD_RESP buffer:", resp,
+ le16_to_cpu(resp->size));
+
+ if (!(orig_cmdresp_no & HOST_RET_BIT)) {
+ nxpwifi_dbg(adapter, ERROR, "CMD_RESP: invalid cmd resp\n");
+ if (adapter->curr_cmd->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+
+ nxpwifi_recycle_cmd_node(adapter, adapter->curr_cmd);
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ adapter->curr_cmd = NULL;
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+ return -1;
+ }
+
+ if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
+ adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD;
+ if (cmdresp_result == HOST_RESULT_OK &&
+ cmdresp_no == HOST_CMD_802_11_HS_CFG_ENH)
+ ret = nxpwifi_ret_802_11_hs_cfg(priv, resp);
+ } else {
+ if (resp->result != HOST_RESULT_OK) {
+ nxpwifi_process_cmdresp_error(priv, resp);
+ return -1;
+ }
+ if (adapter->curr_cmd->cmd_resp) {
+ void *data_buf = adapter->curr_cmd->data_buf;
+
+ ret = adapter->curr_cmd->cmd_resp(priv, resp,
+ cmdresp_no,
+ data_buf);
+ }
+ }
+
+ /* Check init command response */
+ if (adapter->hw_status == NXPWIFI_HW_STATUS_INITIALIZING) {
+ if (ret) {
+ nxpwifi_dbg(adapter, ERROR,
+ "%s: cmd %#x failed during\t"
+ "initialization\n", __func__, cmdresp_no);
+ nxpwifi_init_fw_complete(adapter);
+ return -1;
+ } else if (adapter->last_init_cmd == cmdresp_no) {
+ adapter->hw_status = NXPWIFI_HW_STATUS_INIT_DONE;
+ }
+ }
+
+ if (adapter->curr_cmd) {
+ if (adapter->curr_cmd->wait_q_enabled)
+ adapter->cmd_wait_q.status = ret;
+
+ nxpwifi_recycle_cmd_node(adapter, adapter->curr_cmd);
+
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ adapter->curr_cmd = NULL;
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+ }
+
+ return ret;
+}
+
+void nxpwifi_process_assoc_resp(struct nxpwifi_adapter *adapter)
+{
+ struct cfg80211_rx_assoc_resp_data assoc_resp = {
+ .uapsd_queues = -1,
+ };
+ struct nxpwifi_private *priv =
+ nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_STA);
+
+ if (priv->assoc_rsp_size) {
+ assoc_resp.links[0].bss = priv->req_bss;
+ assoc_resp.buf = priv->assoc_rsp_buf;
+ assoc_resp.len = priv->assoc_rsp_size;
+ cfg80211_rx_assoc_resp(priv->netdev,
+ &assoc_resp);
+ priv->assoc_rsp_size = 0;
+ }
+}
+
+/* This function handles the timeout of command sending.
+ *
+ * It will re-send the same command again.
+ */
+void
+nxpwifi_cmd_timeout_func(struct timer_list *t)
+{
+ struct nxpwifi_adapter *adapter = from_timer(adapter, t, cmd_timer);
+ struct cmd_ctrl_node *cmd_node;
+
+ set_bit(NXPWIFI_IS_CMD_TIMEDOUT, &adapter->work_flags);
+ if (!adapter->curr_cmd) {
+ nxpwifi_dbg(adapter, ERROR,
+ "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];
+ nxpwifi_dbg(adapter, MSG,
+ "%s: Timeout cmd id = %#x, act = %#x\n", __func__,
+ adapter->dbg.timeout_cmd_id,
+ adapter->dbg.timeout_cmd_act);
+
+ nxpwifi_dbg(adapter, MSG,
+ "num_data_h2c_failure = %d\n",
+ adapter->dbg.num_tx_host_to_card_failure);
+ nxpwifi_dbg(adapter, MSG,
+ "num_cmd_h2c_failure = %d\n",
+ adapter->dbg.num_cmd_host_to_card_failure);
+
+ nxpwifi_dbg(adapter, MSG,
+ "is_cmd_timedout = %d\n",
+ test_bit(NXPWIFI_IS_CMD_TIMEDOUT,
+ &adapter->work_flags));
+ nxpwifi_dbg(adapter, MSG,
+ "num_tx_timeout = %d\n",
+ adapter->dbg.num_tx_timeout);
+
+ nxpwifi_dbg(adapter, MSG,
+ "last_cmd_index = %d\n",
+ adapter->dbg.last_cmd_index);
+ nxpwifi_dbg(adapter, MSG,
+ "last_cmd_id: %*ph\n",
+ (int)sizeof(adapter->dbg.last_cmd_id),
+ adapter->dbg.last_cmd_id);
+ nxpwifi_dbg(adapter, MSG,
+ "last_cmd_act: %*ph\n",
+ (int)sizeof(adapter->dbg.last_cmd_act),
+ adapter->dbg.last_cmd_act);
+
+ nxpwifi_dbg(adapter, MSG,
+ "last_cmd_resp_index = %d\n",
+ adapter->dbg.last_cmd_resp_index);
+ nxpwifi_dbg(adapter, MSG,
+ "last_cmd_resp_id: %*ph\n",
+ (int)sizeof(adapter->dbg.last_cmd_resp_id),
+ adapter->dbg.last_cmd_resp_id);
+
+ nxpwifi_dbg(adapter, MSG,
+ "last_event_index = %d\n",
+ adapter->dbg.last_event_index);
+ nxpwifi_dbg(adapter, MSG,
+ "last_event: %*ph\n",
+ (int)sizeof(adapter->dbg.last_event),
+ adapter->dbg.last_event);
+
+ nxpwifi_dbg(adapter, MSG,
+ "data_sent=%d cmd_sent=%d\n",
+ adapter->data_sent, adapter->cmd_sent);
+
+ nxpwifi_dbg(adapter, MSG,
+ "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;
+ nxpwifi_cancel_pending_ioctl(adapter);
+ }
+ }
+ if (adapter->hw_status == NXPWIFI_HW_STATUS_INITIALIZING) {
+ nxpwifi_init_fw_complete(adapter);
+ return;
+ }
+
+ if (adapter->if_ops.device_dump)
+ adapter->if_ops.device_dump(adapter);
+
+ if (adapter->if_ops.card_reset)
+ adapter->if_ops.card_reset(adapter);
+}
+
+void
+nxpwifi_cancel_pending_scan_cmd(struct nxpwifi_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
+
+ /* Cancel all pending scan command */
+ spin_lock_bh(&adapter->scan_pending_q_lock);
+ 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;
+ nxpwifi_insert_cmd_to_free_q(adapter, cmd_node);
+ }
+ spin_unlock_bh(&adapter->scan_pending_q_lock);
+}
+
+/* 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
+nxpwifi_cancel_all_pending_cmd(struct nxpwifi_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
+
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ /* Cancel current cmd */
+ if (adapter->curr_cmd && adapter->curr_cmd->wait_q_enabled) {
+ adapter->cmd_wait_q.status = -1;
+ nxpwifi_complete_cmd(adapter, adapter->curr_cmd);
+ adapter->curr_cmd->wait_q_enabled = false;
+ /* no recycle probably wait for response */
+ }
+ /* Cancel all pending command */
+ spin_lock_bh(&adapter->cmd_pending_q_lock);
+ list_for_each_entry_safe(cmd_node, tmp_node,
+ &adapter->cmd_pending_q, list) {
+ list_del(&cmd_node->list);
+
+ if (cmd_node->wait_q_enabled)
+ adapter->cmd_wait_q.status = -1;
+ nxpwifi_recycle_cmd_node(adapter, cmd_node);
+ }
+ spin_unlock_bh(&adapter->cmd_pending_q_lock);
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+
+ nxpwifi_cancel_scan(adapter);
+}
+
+/* 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.
+ */
+static void
+nxpwifi_cancel_pending_ioctl(struct nxpwifi_adapter *adapter)
+{
+ struct cmd_ctrl_node *cmd_node = NULL;
+
+ if (adapter->curr_cmd &&
+ adapter->curr_cmd->wait_q_enabled) {
+ spin_lock_bh(&adapter->nxpwifi_cmd_lock);
+ cmd_node = adapter->curr_cmd;
+ /* setting curr_cmd to NULL is quite dangerous, because
+ * nxpwifi_process_cmdresp checks curr_cmd to be != NULL
+ * at the beginning then relies on it and dereferences
+ * it at will
+ * this probably works since nxpwifi_cmd_timeout_func
+ * is the only caller of this function and responses
+ * at that point
+ */
+ adapter->curr_cmd = NULL;
+ spin_unlock_bh(&adapter->nxpwifi_cmd_lock);
+
+ nxpwifi_recycle_cmd_node(adapter, cmd_node);
+ }
+
+ nxpwifi_cancel_scan(adapter);
+}
+
+/* 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
+nxpwifi_check_ps_cond(struct nxpwifi_adapter *adapter)
+{
+ if (!adapter->cmd_sent && !atomic_read(&adapter->tx_hw_pending) &&
+ !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
+ nxpwifi_dnld_sleep_confirm_cmd(adapter);
+ else
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: Delay Sleep Confirm (%s%s%s%s)\n",
+ (adapter->cmd_sent) ? "D" : "",
+ atomic_read(&adapter->tx_hw_pending) ? "T" : "",
+ (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
+nxpwifi_hs_activated_event(struct nxpwifi_private *priv, u8 activated)
+{
+ if (activated) {
+ if (test_bit(NXPWIFI_IS_HS_CONFIGURED,
+ &priv->adapter->work_flags)) {
+ priv->adapter->hs_activated = true;
+ nxpwifi_update_rxreor_flags(priv->adapter,
+ RXREOR_FORCE_NO_DROP);
+ nxpwifi_dbg(priv->adapter, EVENT,
+ "event: hs_activated\n");
+ priv->adapter->hs_activate_wait_q_woken = true;
+ wake_up_interruptible(&priv->adapter->hs_activate_wait_q);
+ } else {
+ nxpwifi_dbg(priv->adapter, EVENT,
+ "event: HS not configured\n");
+ }
+ } else {
+ nxpwifi_dbg(priv->adapter, EVENT,
+ "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 nxpwifi_ret_802_11_hs_cfg(struct nxpwifi_private *priv,
+ struct host_cmd_ds_command *resp)
+{
+ struct nxpwifi_adapter *adapter = priv->adapter;
+ struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg =
+ &resp->params.opt_hs_cfg;
+ u32 conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
+
+ if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE)) {
+ nxpwifi_hs_activated_event(priv, true);
+ goto done;
+ } else {
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: CMD_RESP: HS_CFG cmd reply\t"
+ " 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) {
+ set_bit(NXPWIFI_IS_HS_CONFIGURED, &adapter->work_flags);
+ } else {
+ clear_bit(NXPWIFI_IS_HS_CONFIGURED, &adapter->work_flags);
+ if (adapter->hs_activated)
+ nxpwifi_hs_activated_event(priv, false);
+ }
+
+done:
+ return 0;
+}
+
+/* This function wakes up the adapter and generates a Host Sleep
+ * cancel event on receiving the power up interrupt.
+ */
+void
+nxpwifi_process_hs_config(struct nxpwifi_adapter *adapter)
+{
+ nxpwifi_dbg(adapter, INFO,
+ "info: %s: auto cancelling host sleep\t"
+ "since there is interrupt from the firmware\n",
+ __func__);
+
+ adapter->if_ops.wakeup(adapter);
+
+ if (adapter->hs_activated_manually) {
+ nxpwifi_cancel_hs(nxpwifi_get_priv(adapter, NXPWIFI_BSS_ROLE_ANY),
+ NXPWIFI_ASYNC_CMD);
+ adapter->hs_activated_manually = false;
+ }
+
+ adapter->hs_activated = false;
+ clear_bit(NXPWIFI_IS_HS_CONFIGURED, &adapter->work_flags);
+ clear_bit(NXPWIFI_IS_SUSPENDED, &adapter->work_flags);
+ nxpwifi_hs_activated_event(nxpwifi_get_priv(adapter,
+ NXPWIFI_BSS_ROLE_ANY),
+ false);
+}
+EXPORT_SYMBOL_GPL(nxpwifi_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
+nxpwifi_process_sleep_confirm_resp(struct nxpwifi_adapter *adapter,
+ u8 *pbuf, u32 upld_len)
+{
+ struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *)pbuf;
+ u16 result = le16_to_cpu(cmd->result);
+ u16 command = le16_to_cpu(cmd->command);
+ u16 seq_num = le16_to_cpu(cmd->seq_num);
+
+ if (!upld_len) {
+ nxpwifi_dbg(adapter, ERROR,
+ "%s: cmd size is 0\n", __func__);
+ return;
+ }
+
+ nxpwifi_dbg(adapter, CMD,
+ "cmd: CMD_RESP: 0x%x, result %d, len %d, seqno 0x%x\n",
+ command, result, le16_to_cpu(cmd->size), seq_num);
+
+ /* Update sequence number */
+ seq_num = HOST_GET_SEQ_NO(seq_num);
+ /* Clear RET_BIT from HOST */
+ command &= HOST_CMD_ID_MASK;
+
+ if (command != HOST_CMD_802_11_PS_MODE_ENH) {
+ nxpwifi_dbg(adapter, ERROR,
+ "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
+ __func__, command, result);
+ return;
+ }
+
+ if (result) {
+ nxpwifi_dbg(adapter, ERROR,
+ "%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 (test_bit(NXPWIFI_IS_HS_CONFIGURED, &adapter->work_flags))
+ nxpwifi_hs_activated_event(nxpwifi_get_priv
+ (adapter, NXPWIFI_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(nxpwifi_process_sleep_confirm_resp);
--
2.34.1
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