static void cardu_usb_hsic_postsupend(void)
{
#ifdef CONFIG_TEGRA_BB_XMM_POWER
baseband_xmm_set_power_status(BBXMM_PS_L2);
#endif
}
static void cardu_usb_hsic_preresume(void)
{
#ifdef CONFIG_TEGRA_BB_XMM_POWER
baseband_xmm_set_power_status(BBXMM_PS_L2TOL0);
#endif
}
irqreturn_t baseband_xmm_power_ipc_ap_wake_irq(int irq, void *dev_id)
{
int value;
struct baseband_power_platform_data *data = baseband_power_driver_data;
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);
if (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_INIT1 state */
ipc_ap_wake_state = IPC_AP_WAKE_INIT1;
/* queue work */
queue_work(workqueue, &init1_work);
} else {
pr_debug("%s - IPC_AP_WAKE_INIT1"
" - wait for falling edge\n",
__func__);
}
} else if (ipc_ap_wake_state == IPC_AP_WAKE_INIT1) {
if (!value) {
pr_debug("%s - IPC_AP_WAKE_INIT2"
" - wait for rising edge\n",
__func__);
} else {
pr_debug("%s - IPC_AP_WAKE_INIT2"
" - got rising edge\n",
__func__);
/* go to IPC_AP_WAKE_INIT2 state */
ipc_ap_wake_state = IPC_AP_WAKE_INIT2;
/* queue work */
queue_work(workqueue, &init2_work);
}
} else {
if (!value) {
pr_debug("%s - falling\n", __func__);
/* First check it a CP ack or CP wake */
value = gpio_get_value
(data->modem.xmm.ipc_bb_wake);
if (value) {
pr_debug("cp ack for bb_wake\n");
ipc_ap_wake_state = IPC_AP_WAKE_L;
return IRQ_HANDLED;
}
spin_lock(&xmm_lock);
wakeup_pending = true;
if (system_suspending) {
spin_unlock(&xmm_lock);
pr_info("Set wakeup_pending = 1 in system_"
" suspending!!!\n");
} else {
if (baseband_xmm_powerstate ==
BBXMM_PS_L3) {
spin_unlock(&xmm_lock);
pr_info("CP L3 -> L0\n");
} else if (baseband_xmm_powerstate ==
BBXMM_PS_L2) {
CP_initiated_L2toL0 = true;
spin_unlock(&xmm_lock);
baseband_xmm_set_power_status
(BBXMM_PS_L2TOL0);
} else {
CP_initiated_L2toL0 = true;
spin_unlock(&xmm_lock);
}
}
/* save gpio state */
ipc_ap_wake_state = IPC_AP_WAKE_L;
} else {
pr_debug("%s - rising\n", __func__);
value = gpio_get_value
(data->modem.xmm.ipc_hsic_active);
if (!value) {
pr_info("host active low: ignore request\n");
ipc_ap_wake_state = IPC_AP_WAKE_H;
return IRQ_HANDLED;
}
value = gpio_get_value
(data->modem.xmm.ipc_bb_wake);
if (value) {
/* Clear the slave wakeup request */
gpio_set_value
(data->modem.xmm.ipc_bb_wake, 0);
pr_debug("gpio slave wakeup done ->\n");
}
if (reenable_autosuspend && usbdev) {
reenable_autosuspend = false;
queue_work(workqueue,
&autopm_resume_work);
}
modem_sleep_flag = false;
baseband_xmm_set_power_status(
BBXMM_PS_L0);
/* save gpio state */
ipc_ap_wake_state = IPC_AP_WAKE_H;
}
}
return IRQ_HANDLED;
}
irqreturn_t baseband_xmm_power_ipc_ap_wake_irq(int irq, void *dev_id)
{
int value;
struct baseband_power_platform_data *data = baseband_power_driver_data;
value = gpio_get_value(baseband_power_driver_data->modem.xmm.ipc_ap_wake);
pr_debug("%s g(%d), wake_st(%d)\n", __func__, value, ipc_ap_wake_state);
if (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_INIT1 state */
ipc_ap_wake_state = IPC_AP_WAKE_INIT1;
/* queue work */
queue_work(workqueue, &init1_work);
} else {
pr_debug("%s - IPC_AP_WAKE_INIT1" " - wait for falling edge\n", __func__);
}
} else if (ipc_ap_wake_state == IPC_AP_WAKE_INIT1) {
if (!value) {
pr_debug("%s - IPC_AP_WAKE_INIT2" " - wait for rising edge\n",__func__);
} else {
pr_debug("%s - IPC_AP_WAKE_INIT2" " - got rising edge\n",__func__);
/* go to IPC_AP_WAKE_INIT2 state */
ipc_ap_wake_state = IPC_AP_WAKE_INIT2;
/* queue work */
queue_work(workqueue, &init2_work);
}
} else {
if (!value) {
pr_debug("%s - falling\n", __func__);
/* First check it a CP ack or CP wake */
value = gpio_get_value(data->modem.xmm.ipc_bb_wake);
if (value) {
pr_debug("cp ack for bb_wake\n");
ipc_ap_wake_state = IPC_AP_WAKE_L;
return IRQ_HANDLED;
}
spin_lock(&xmm_lock);
wakeup_pending = true;
if (system_suspending) {
spin_unlock(&xmm_lock);
pr_debug("Set wakeup_pending = 1 in system_" " suspending!!!\n");
} else {
if (baseband_xmm_powerstate == BBXMM_PS_L3) {
spin_unlock(&xmm_lock);
pr_debug("PM_ST : CP L3 -> L0\n");
} else if (baseband_xmm_powerstate == BBXMM_PS_L2) {
CP_initiated_L2toL0 = true;
spin_unlock(&xmm_lock);
baseband_xmm_set_power_status(BBXMM_PS_L2TOL0);
} else {
CP_initiated_L2toL0 = true;
spin_unlock(&xmm_lock);
}
}
/* save gpio state */
ipc_ap_wake_state = IPC_AP_WAKE_L;
} else {
pr_debug("%s - rising\n", __func__);
value = gpio_get_value(data->modem.xmm.ipc_hsic_active);
//pr_debug("GPIO [R]: Host_active = %d \n",value);
if (!value) {
pr_debug("host active low: ignore request\n");
ipc_ap_wake_state = IPC_AP_WAKE_H;
return IRQ_HANDLED;
}
value = gpio_get_value(data->modem.xmm.ipc_bb_wake);
//pr_debug("GPIO [R]: Slave_wakeup = %d \n", value);
if (value) {
/* Clear the slave wakeup request */
gpio_set_value(data->modem.xmm.ipc_bb_wake, 0);
pr_debug("GPIO [W]: Slave_wake -> 0 \n");
}
if (reenable_autosuspend && usbdev) {
reenable_autosuspend = false;
struct usb_interface *intf;
intf = usb_ifnum_to_if(usbdev, 0);
if (usb_autopm_get_interface_async(intf) >= 0) {
pr_debug("get_interface_async succeeded" " - call put_interface\n");
usb_autopm_put_interface_async(intf);
} else {
pr_debug("get_interface_async failed" " - do not call put_interface\n");
}
}
modem_sleep_flag = false;
baseband_xmm_set_power_status(BBXMM_PS_L0);
if (short_autosuspend && enable_short_autosuspend &&
baseband_xmm_powerstate == BBXMM_PS_L0 &&
&usbdev->dev)
{
pr_debug("set autosuspend delay %d ms\n",SHORT_AUTOSUSPEND_DELAY);
queue_work(workqueue_susp, &work_shortsusp);
}
/* save gpio state */
ipc_ap_wake_state = IPC_AP_WAKE_H;
}
}
return IRQ_HANDLED;
}