static irqreturn_t usb_detect_handler(int irq, void *dev_id)
{
struct gadget_wrapper *d;
int value = 0;
#ifndef DWC_DEVICE_ONLY
/*
*if otg cable is connected , id state =0
*as host turn on vbus, in this case shouldn't call this handler
*/
if(!usb_get_id_state())
return IRQ_HANDLED;
#endif
d = gadget_wrapper;
if (d->driver == NULL) {
pr_info("too early, no gadget drive\n");
return IRQ_HANDLED;
}
value = usb_get_vbus_state();
if (value){
pr_debug("usb detect plug in\n");
usb_set_vbus_irq_type(irq, VBUS_PLUG_OUT);
} else {
pr_debug("usb detect plug out\n");
usb_set_vbus_irq_type(irq, VBUS_PLUG_IN);
}
d->vbus = value;
queue_work(d->detect_wq, &d->detect_work);
return IRQ_HANDLED;
}
static int pullup(struct usb_gadget *gadget, int is_on)
{
struct gadget_wrapper *d;
int action = is_on;
#ifndef DWC_DEVICE_ONLY
if(!usb_get_id_state())
return 0;
#endif
if (gadget == 0)
return -ENODEV;
else
d = container_of(gadget, struct gadget_wrapper, gadget);
d->softconnect = is_on;
#ifdef CONFIG_USB_EXTERNAL_DETECT
if (!d->enabled || !d->vbus)
{
printk("usb: %s, d->enable = %d, d->vbus=%d \r\n",__func__, d->enabled, d->vbus);
return 0;
}
mutex_lock(&udc_lock);
if (action) {
__udc_startup();
} else {
__udc_shutdown();
}
mutex_unlock(&udc_lock);
#else
if (!d->enabled || !d->vbus)
action = 0;
mutex_lock(&udc_lock);
if (action) {
queue_delayed_work(d->cable2pc_wq, &d->cable2pc,CABLE_TIMEOUT);
__udc_startup();
} else {
/*
*this is soft disconnct, and maybe the timer started
*by plugin still work, need cancel this timer like plugout
*/
cancel_delayed_work_sync(&d->cable2pc);
__udc_shutdown();
}
mutex_unlock(&udc_lock);
#endif
return 0;
}
int epmic_event_handler(int level)
{
struct gadget_wrapper *d;
#ifndef DWC_DEVICE_ONLY
/*
*if otg cable is connected , id state =0
*as host turn on vbus, in this case shouldn't call this handler
*/
if(!usb_get_id_state())
return 0;
#endif
d = gadget_wrapper;
d->vbus = level;
queue_work(d->detect_wq, &d->detect_work);
return 0;
}
static int pullup(struct usb_gadget *gadget, int is_on)
{
struct gadget_wrapper *d;
int action = is_on;
#ifndef DWC_DEVICE_ONLY
if(!usb_get_id_state())
return 0;
#endif
if (gadget == 0)
return -ENODEV;
else
d = container_of(gadget, struct gadget_wrapper, gadget);
#ifdef CONFIG_USB_INTERRUPT_BY_MUIC // need to check vbus again
if (!d->enabled)
action = 0;
#else
if (!d->enabled || !d->vbus)
action = 0;
#endif
mutex_lock(&udc_lock);
if (action) {
queue_delayed_work(d->cable2pc_wq, &d->cable2pc,CABLE_TIMEOUT);
__udc_startup();
} else {
/*
*this is soft disconnct, and maybe the timer started
*by plugin still work, need cancel this timer like plugout
*/
cancel_delayed_work_sync(&d->cable2pc);
__udc_shutdown();
}
mutex_unlock(&udc_lock);
return 0;
}
