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usb: add UsbState enum (#512)

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SciresM 2020-12-04 12:13:30 -08:00 committed by GitHub
parent e8a4f22063
commit 21b0613fa4
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3 changed files with 19 additions and 5 deletions
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11
nx/include/switch/services/usb.h
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@ -207,3 +207,14 @@ enum usb_iso_usage_type {
USB_ISO_USAGE_TYPE_IMPLICIT = 2,
};
/// USB Device States, per USB 2.0 spec
typedef enum {
UsbState_Detached = 0, ///< Device is not attached to USB.
UsbState_Attached = 1, ///< Device is attached, but is not powered.
UsbState_Powered = 2, ///< Device is attached and powered, but has not been reset.
UsbState_Default = 3, ///< Device is attached, powered, and has been reset, but does not have an address.
UsbState_Address = 4, ///< Device is attached, powered, has been reset, has an address, but is not configured.
UsbState_Configured = 5, ///< Device is attached, powered, has been reset, has an address, configured, and may be used.
UsbState_Suspended = 6, ///< Device is attached and powered, but has not seen bus activity for 3ms. Device is suspended and cannot be used.
} UsbState;

4
nx/include/switch/services/usbds.h
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@ -79,7 +79,9 @@ Result usbDsParseReportData(UsbDsReportData *reportdata, u32 urbId, u32 *request
///@{
Event* usbDsGetStateChangeEvent(void);
Result usbDsGetState(u32* out);
/// Gets the device state. See \ref UsbState.
Result usbDsGetState(UsbState* out);
/// Removed in [5.0.0+].
Result usbDsGetDsInterface(UsbDsInterface** out, struct usb_interface_descriptor* descriptor, const char* interface_name);

9
nx/source/services/usbds.c
View File

@ -223,18 +223,19 @@ static Result _usbDsBindDevice(UsbComplexId complexId, Handle prochandle) {
return rc;
}
Result usbDsGetState(u32 *out) {
return _usbDsCmdNoInOutU32(&g_usbDsSrv, out, hosversionAtLeast(11,0,0) ? 3 : 4);
Result usbDsGetState(UsbState *out) {
_Static_assert(sizeof(*out) == sizeof(u32));
return _usbDsCmdNoInOutU32(&g_usbDsSrv, (u32 *)out, hosversionAtLeast(11,0,0) ? 3 : 4);
}
Result usbDsWaitReady(u64 timeout) {
Result rc;
u32 state = 0;
UsbState state = UsbState_Detached;
rc = usbDsGetState(&state);
if (R_FAILED(rc)) return rc;
while (R_SUCCEEDED(rc) && state != 5) {
while (R_SUCCEEDED(rc) && state != UsbState_Configured) {
eventWait(&g_usbDsStateChangeEvent, timeout);
eventClear(&g_usbDsStateChangeEvent);
rc = usbDsGetState(&state);