static irqreturn_t ipc_ap_wake_irq(int irq, void *dev_id)
{
struct baseband_power_platform_data *data = xmm_power_drv_data.pdata;
int value;
value = gpio_get_value(data->modem.xmm.ipc_ap_wake);
pr_debug("%s g(%d), wake_st(%d)\n", __func__, value, ipc_ap_wake_state);
/* modem wakeup part */
if (likely(ipc_ap_wake_state >= IPC_AP_WAKE_INIT2))
return xmm_power_ipc_ap_wake_irq(value);
/* modem initialization/bootup part*/
if (unlikely(ipc_ap_wake_state < IPC_AP_WAKE_IRQ_READY)) {
pr_err("%s - spurious irq\n", __func__);
} else if (ipc_ap_wake_state == IPC_AP_WAKE_IRQ_READY) {
if (value) {
/* make state ready for falling edge */
ipc_ap_wake_state = IPC_AP_WAKE_INIT1;
pr_debug("%s - got rising edge\n", __func__);
}
} else if (ipc_ap_wake_state == IPC_AP_WAKE_INIT1) {
if (!value) {
pr_debug("%s - got falling edge at INIT1\n", __func__);
/* go to IPC_AP_WAKE_INIT2 state */
ipc_ap_wake_state = IPC_AP_WAKE_INIT2;
queue_work(workqueue, &init2_work);
} else
pr_debug("%s - unexpected rising edge\n", __func__);
}
return IRQ_HANDLED;
}
static irqreturn_t xmm_power2_ipc_ap_wake_irq(int irq, void *dev_id)
{
int value;
struct xmm_power_data *data = dev_id;
struct baseband_power_platform_data *pdata = data->pdata;
pr_debug("%s\n", __func__);
/* check for platform data */
if (!pdata)
return IRQ_HANDLED;
value = gpio_get_value(pdata->modem.xmm.ipc_ap_wake);
/* IPC_AP_WAKE state machine */
if (unlikely(ipc_ap_wake_state < IPC_AP_WAKE_IRQ_READY))
pr_err("%s - spurious irq\n", __func__);
else if (ipc_ap_wake_state == IPC_AP_WAKE_IRQ_READY) {
if (!value) {
pr_debug("%s: IPC_AP_WAKE_INIT1 got falling edge\n",
__func__);
/* go to IPC_AP_WAKE_INIT2 state */
ipc_ap_wake_state = IPC_AP_WAKE_INIT2;
/* queue work */
data->state =
BBXMM_WORK_INIT_FLASHLESS_PM_STEP2;
queue_work(workqueue, &data->work);
} else
pr_debug("%s: IPC_AP_WAKE_INIT1"
" wait for falling edge\n", __func__);
} else {
if (!value) {
pr_debug("%s - falling\n", __func__);
ipc_ap_wake_state = IPC_AP_WAKE_L;
} else {
pr_debug("%s - rising\n", __func__);
ipc_ap_wake_state = IPC_AP_WAKE_H;
}
return xmm_power_ipc_ap_wake_irq(irq, dev_id);
}
return IRQ_HANDLED;
}
