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linux/drivers/net/wireless/mwifiex/cmdevt.c

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/*
* Marvell Wireless LAN device driver: commands and events
*
* Copyright (C) 2011, 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)
{
cmd_node->priv = priv;
cmd_node->cmd_oid = cmd_oid;
if (priv->adapter->cmd_wait_q_required) {
cmd_node->wait_q_enabled = priv->adapter->cmd_wait_q_required;
priv->adapter->cmd_wait_q_required = false;
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;
struct timeval tstamp;
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);
mwifiex_complete_cmd(adapter, cmd_node);
mwifiex_recycle_cmd_node(adapter, cmd_node);
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);
do_gettimeofday(&tstamp);
dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
" seqno %#x\n",
tstamp.tv_sec, tstamp.tv_usec, 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);
sleep_cfm_buf->seq_num =
cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
(adapter->seq_num, priv->bss_num,
priv->bss_type)));
adapter->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 (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY))
== MWIFIEX_BSS_ROLE_STA) {
if (!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 (!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_STA), 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 timeval tstamp;
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);
rx_info->bss_num = priv->bss_num;
rx_info->bss_type = priv->bss_type;
}
if (eventcause != EVENT_PS_SLEEP && eventcause != EVENT_PS_AWAKE) {
do_gettimeofday(&tstamp);
dev_dbg(adapter->dev, "event: %lu.%lu: cause: %#x\n",
tstamp.tv_sec, tstamp.tv_usec, eventcause);
} else {
/* Handle PS_SLEEP/AWAKE events on STA */
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
if (!priv)
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
}
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 is used to send synchronous command to the firmware.
*
* it allocates a wait queue for the command and wait for the command
* response.
*/
int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no,
u16 cmd_action, u32 cmd_oid, void *data_buf)
{
int ret = 0;
struct mwifiex_adapter *adapter = priv->adapter;
adapter->cmd_wait_q_required = true;
ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid,
data_buf);
return ret;
}
/*
* This function prepares a command and asynchronously 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_async(struct mwifiex_private *priv, uint16_t cmd_no,
u16 cmd_action, u32 cmd_oid, void *data_buf)
{
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->surprise_removed) {
dev_err(adapter->dev, "PREP_CMD: card is removed\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);
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) {
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;
struct timeval tstamp;
unsigned long flags;
/* Now we got response from FW, cancel the command timer */
del_timer(&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->num_cmd_timeout = 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;
do_gettimeofday(&tstamp);
dev_dbg(adapter->dev, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
" len %d, seqno 0x%x\n",
tstamp.tv_sec, tstamp.tv_usec, 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;
struct timeval tstamp;
adapter->num_cmd_timeout++;
adapter->dbg.num_cmd_timeout++;
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];
do_gettimeofday(&tstamp);
dev_err(adapter->dev,
"%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
__func__, tstamp.tv_sec, tstamp.tv_usec,
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, "num_cmd_timeout = %d\n",
adapter->dbg.num_cmd_timeout);
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);
/* reset cmd_sent flag to unblock new commands */
adapter->cmd_sent = false;
}
}
if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
mwifiex_init_fw_complete(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;
/* Cancel current cmd */
if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) {
spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
adapter->curr_cmd->wait_q_enabled = false;
spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
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);
/* 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);
spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
cmd_node->wait_q_enabled = false;
mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
}
spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
adapter->scan_processing = false;
spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
}
/*
* 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;
uint16_t cancel_scan_cmd = false;
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);
spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
scan_pending_q_flags);
cmd_node->wait_q_enabled = false;
mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
spin_lock_irqsave(&adapter->scan_pending_q_lock,
scan_pending_q_flags);
cancel_scan_cmd = true;
}
spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
scan_pending_q_flags);
if (cancel_scan_cmd) {
spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
adapter->scan_processing = false;
spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
}
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_SDIO) {
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 ||
adapter->iface_type == MWIFIEX_PCIE)
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;
}
/* 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;
int i;
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->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;
adapter->usr_dot_11ac_dev_cap_a = adapter->hw_dot_11ac_dev_cap;
/* 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;
}
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));
if (priv->curr_addr[0] == 0xff)
memmove(priv->curr_addr, hw_spec->permanent_addr, ETH_ALEN);
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;
if (adapter->if_ops.update_mp_end_port)
adapter->if_ops.update_mp_end_port(adapter,
le16_to_cpu(hw_spec->mp_end_port));
return 0;
}
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