/* http://www.spinics.net/lists/linux-usb/msg35888.html */
int RTMP_Usb_AutoPM_Get_Interface(void *pUsb_Devsrc, void *intfsrc)
{
int pm_usage_cnt;
struct usb_interface *intf = (struct usb_interface *)intfsrc;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
pm_usage_cnt = (int)atomic_read(&intf->pm_usage_cnt);
#else
pm_usage_cnt = intf->pm_usage_cnt;
#endif
if (pm_usage_cnt == 0) {
int res = rausb_autopm_get_interface(intf);
if (res) {
DBGPRINT(RT_DEBUG_ERROR,
("AsicSwitchChannel autopm_resume fail ------\n"));
return (-1);
}
}
return 2;
}
int RTMP_Usb_AutoPM_Get_Interface (
IN VOID *pUsb_Devsrc,
IN VOID *intfsrc)
{
INT pm_usage_cnt;
struct usb_device *pUsb_Dev =(struct usb_device *)pUsb_Devsrc;
struct usb_interface *intf =(struct usb_interface *)intfsrc;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
pm_usage_cnt = (INT)atomic_read(&intf->pm_usage_cnt);
#else
pm_usage_cnt = intf->pm_usage_cnt;
#endif
/* if(!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_CPU_SUSPEND)) */
{
if(pm_usage_cnt == 0)
{
int res=1;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)
if(pUsb_Dev->autosuspend_disabled ==0)
#else
if(pUsb_Dev->auto_pm ==1)
#endif
{
res = rausb_autopm_get_interface(intf);
/*
when system power level from auto to on, auto_pm is 0 and the function radioon will set fRTMP_ADAPTER_SUSPEND
so we must clear fkag here;
*/
/* RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_SUSPEND); */
if (res)
{
/* DBGPRINT(RT_DEBUG_ERROR, ("AsicSwitchChannel autopm_resume fail ------\n")); */
/* RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_SUSPEND); */
return (-1);
}
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
else
{
/* DBGPRINT(RT_DEBUG_TRACE, ("AsicSwitchChannel: fRTMP_ADAPTER_SUSPEND\n")); */
/* RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_SUSPEND); */
return (-1);
}
#endif
return 1;
}
return 2;
}
/*
else
{
DBGPRINT(RT_DEBUG_TRACE, ("AsicSwitchChannel: fRTMP_ADAPTER_CPU_SUSPEND\n"));
return;
}
*/
}