bool tegra_udc_charger_detection(void)
{
NvDdkUsbPhyIoctl_DedicatedChargerDetectionInputArgs Charger;
NvDdkUsbPhyIoctl_DedicatedChargerStatusOutputArgs Status;
/* clear the input args */
NvOsMemset(&Charger, 0, sizeof(Charger));
/* enable the charger detection logic */
Charger.EnableChargerDetection = NV_TRUE;
NV_ASSERT_SUCCESS(NvDdkUsbPhyIoctl(
s_hUsbPhy,
NvDdkUsbPhyIoctlType_DedicatedChargerDetection,
&Charger,
NULL));
/* get the charger detection status */
NV_ASSERT_SUCCESS(NvDdkUsbPhyIoctl(
s_hUsbPhy,
NvDdkUsbPhyIoctlType_DedicatedChargerStatus,
NULL,
&Status));
/* disable the charger detection */
Charger.EnableChargerDetection = NV_FALSE;
NV_ASSERT_SUCCESS(NvDdkUsbPhyIoctl(
s_hUsbPhy,
NvDdkUsbPhyIoctlType_DedicatedChargerDetection,
&Charger,
NULL));
return Status.ChargerDetected;
}
/*
* Work thread function for setting the usb busy hints.
*
* This work thread is created to avoid the pre-emption from the ISR context.
* Busy hints are controlled based on the USB transcations on the bus .
* Busy hints function cannot be called from ISR as NvRmPowerBusyHintMulti()
* uses vfree and vmalloc functions which are not supposed to call from the
* ISR context
*/
static void tegra_ehci_busy_hint_work(struct work_struct* work)
{
struct tegra_hcd_platform_data *pdata =
container_of(work, struct tegra_hcd_platform_data, work);
NvDdkUsbPhyIoctl_UsbBusyHintsOnOffInputArgs busyhint;
busyhint.OnOff = true;
/* USB transfers will be done with in 1 sec, this need to be *
* fine tuned (if required). with safe limit set to 2 sec */
busyhint.BoostDurationMs = 2000;
NvDdkUsbPhyIoctl(pdata->hUsbPhy,
NvDdkUsbPhyIoctlType_UsbBusyHintsOnOff,
&busyhint,
NULL);
}
