/*
* This function initializes the firmware.
*
* The following operations are performed sequentially -
* - Allocate adapter structure
* - Initialize the adapter structure
* - Initialize the private structure
* - Add BSS priority tables to the adapter structure
* - For each interface, send the init commands to firmware
* - Send the first command in command pending queue, if available
*/
int mwifiex_init_fw(struct mwifiex_adapter *adapter)
{
int ret;
struct mwifiex_private *priv;
u8 i, first_sta = true;
int is_cmd_pend_q_empty;
unsigned long flags;
adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
/* Allocate memory for member of adapter structure */
ret = mwifiex_allocate_adapter(adapter);
if (ret)
return -1;
/* Initialize adapter structure */
mwifiex_init_adapter(adapter);
for (i = 0; i < adapter->priv_num; i++) {
if (adapter->priv[i]) {
priv = adapter->priv[i];
/* Initialize private structure */
ret = mwifiex_init_priv(priv);
if (ret)
return -1;
}
}
if (adapter->if_ops.init_fw_port) {
if (adapter->if_ops.init_fw_port(adapter))
return -1;
}
for (i = 0; i < adapter->priv_num; i++) {
if (adapter->priv[i]) {
ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta);
if (ret == -1)
return -1;
first_sta = false;
}
}
spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q);
spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
if (!is_cmd_pend_q_empty) {
/* Send the first command in queue and return */
if (mwifiex_main_process(adapter) != -1)
ret = -EINPROGRESS;
} else {
adapter->hw_status = MWIFIEX_HW_STATUS_READY;
}
return ret;
}
/*
* This is the main work queue function.
*
* It handles the main process, which in turn handles the complete
* driver operations.
*/
static void mwifiex_main_work_queue(struct work_struct *work)
{
struct mwifiex_adapter *adapter =
container_of(work, struct mwifiex_adapter, main_work);
if (adapter->surprise_removed)
return;
mwifiex_main_process(adapter);
}
/*
* SDIO interrupt handler.
*
* This function reads the interrupt status from firmware and handles
* the interrupt in current thread (ksdioirqd) right away.
*/
static void
mwifiex_sdio_interrupt(struct sdio_func *func)
{
struct mwifiex_adapter *adapter;
struct sdio_mmc_card *card;
card = sdio_get_drvdata(func);
if (!card || !card->adapter) {
pr_debug("int: func=%p card=%p adapter=%p\n",
func, card, card ? card->adapter : NULL);
return;
}
adapter = card->adapter;
if (adapter->surprise_removed)
return;
if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
adapter->ps_state = PS_STATE_AWAKE;
mwifiex_interrupt_status(adapter);
mwifiex_main_process(adapter);
}
