static ssize_t soft_switch_state(struct switch_dev *sdev, char *buf)
{
if (soft_switch.state == 0) {
s3c_udc_soft_disconnect();
udelay(20);
s3c_udc_soft_connect();
soft_switch.state = 1;
}
else {
s3c_udc_soft_disconnect();
udelay(20);
s3c_udc_soft_connect();
soft_switch.state = 0;
}
return sprintf(buf, "%s\n", (soft_switch.state ? "1" : "0"));
}
/*
* usb_gadget_ops pullup
*/
static int s3c_udc_pullup(struct usb_gadget *gadget, int is_on)
{
if (is_on)
s3c_udc_soft_connect();
else
s3c_udc_soft_disconnect();
return 0;
}
/*
* usb_gadget_ops pullup
*/
static int s3c_udc_pullup(struct usb_gadget *gadget, int is_on)
{
//#ifdef CONFIG_PM
#if 0
//logical
if (is_on)
{
s3c_udc_soft_connect();
}
else
{
s3c_udc_soft_disconnect();
}
#else
struct s3c_udc *dev = the_controller;
unsigned long flags;
//UDC power on/off
if (is_on)
{
DEBUG_PM("[%s] is_on[%d]\n", __func__, is_on);
/*
* if early s3c_udc_power_up make
* fsa9480_check_usb_connection failed to detect USB connection
*/
#if NO_USING_USB_SWITCH
s3c_udc_power_up();
#else
fsa9480_check_usb_connection();
#endif
}
else
{
DEBUG_PM("[%s] is_on[%d]\n", __func__, is_on);
S3C_UDC_LOCK_IRQSAVE(&dev->lock, flags);
s3c_udc_stop_activity(dev, dev->driver);
s3c_udc_power_down();
S3C_UDC_UNLOCK_IRQRESTORE(&dev->lock, flags);
}
#endif
return 0;
}
static int s3c_udc_suspend(struct platform_device *pdev, pm_message_t state)
{
struct s3c_udc *dev = platform_get_drvdata(pdev);
DEBUG_PM("[%s]: System Suspend \n", __FUNCTION__);
//save the state of connection to udc_resume_state
if (dev->gadget.speed != USB_SPEED_UNKNOWN)
{
dev->udc_resume_state = dev->udc_state;
DEBUG_PM("[%s]: USB connected at suspend\n", __FUNCTION__);
}
else
{
dev->udc_resume_state = dev->udc_state;
DEBUG_PM("[%s]: USB not connected at suspend\n", __FUNCTION__);
}
switch(pm_policy)
{
case ALL_POWER_DOWN:
s3c_udc_soft_disconnect();
stop_activity(dev, dev->driver);
//confirm clk disable
s3c_udc_power_down();
break;
case CLOCK_GATING:
s3c_udc_suspend_clock_gating();
break;
case OPHYPWR_FORCE_SUSPEND:
writel((readl(S3C_USBOTG_PHYPWR)|1), S3C_USBOTG_PHYPWR);
break;
default:
printk("[%s]: not proper pm_policy\n", __FUNCTION__);
}
return 0;
}
