void fastsource_req_hdlr(const USBGenericRequest *request)
{
unsigned char entity;
unsigned char interface;
switch (USBGenericRequest_GetType(request)) {
case USBGenericRequest_STANDARD:
USBDDriver_RequestHandler(&fast_source_driver, request);
return;
case USBGenericRequest_CLASS:
/* continue below */
break;
default:
TRACE_WARNING("Unsupported request type %u\n\r",
USBGenericRequest_GetType(request));
USBD_Stall(0);
return;
}
switch (USBGenericRequest_GetRequest(request)) {
case AUDGenericRequest_SETCUR:
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if (((entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT) ||
(entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT_REC)) &&
(interface == AUDDLoopRecDriverDescriptors_CONTROL)) {
fastsource_set_feat_cur_val(entity,
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
} else {
TRACE_WARNING("Unsupported entity/interface combination 0x%04x\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
case AUDGenericRequest_GETCUR:
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if (((entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT) ||
(entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT_REC)) &&
(interface == AUDDLoopRecDriverDescriptors_CONTROL)) {
fastsource_get_feat_cur_val(entity,
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
} else {
TRACE_WARNING("Unsupported entity/interface combination 0x%04x\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
default:
TRACE_WARNING("Unsupported request %u\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
break;
}
}
/**
* Handle the SET_CUR request.
* \param pAudf Pointer to AUDDSpeakerPhone instance.
* \param pReq Pointer to USBGenericRequest instance.
*/
static void AUDD_SetCUR(
AUDDSpeakerPhone *pAudf,
const USBGenericRequest* pReq)
{
uint8_t bIf = AUDGenericRequest_GetInterface(pReq);
uint8_t bEntity = AUDGenericRequest_GetEntity(pReq);
uint8_t bLength = USBGenericRequest_GetLength(pReq);
uint8_t bCh = AUDFeatureUnitRequest_GetChannel(pReq);
uint8_t bCtrl = AUDFeatureUnitRequest_GetControl(pReq);
uint8_t bSet = 1;
AUDDStream *pAuds = AUDD_GetCtlStream(pAudf, bIf, bEntity, bCh);
TransferCallback fCallback;
TRACE_INFO_WP("sCUR ");
TRACE_DEBUG("\b(E%d, CtlS%d, Ch%d, L%d) ", bEntity, bCtrl, bCh, bLength);
/* Set Mute to AC, 1 byte */
if (bCtrl == AUDFeatureUnitRequest_MUTE
&& bLength == 1
&& pAuds) {
fCallback = (TransferCallback) AUDD_MuteReceived;
}
else if (bCtrl == AUDFeatureUnitRequest_VOLUME
&& bLength == 2
&& pAuds && pAuds->pwVolumes) {
fCallback = (TransferCallback) AUDD_VolumeReceived;
}
else
bSet = 0;
if (bSet) {
auddXfrData.pStream = pAuds;
auddXfrData.bEntity = bEntity;
auddXfrData.bCh = bCh;
USBD_Read(0,
&auddXfrData.usbBuffer,
bLength,
fCallback,
(void *) &auddXfrData);
}
else {
USBD_Stall(0);
}
}
/**
* Handle the GET_CUR request.
* \param pAudf Pointer to AUDDSpeakerPhone instance.
* \param pReq Pointer to USBGenericRequest instance.
*/
static void AUDD_GetCUR(
AUDDSpeakerPhone *pAudf,
const USBGenericRequest *pReq)
{
uint8_t bIf = AUDGenericRequest_GetInterface(pReq);
uint8_t bEntity = AUDGenericRequest_GetEntity(pReq);
uint8_t bLength = USBGenericRequest_GetLength(pReq);
uint8_t bCh = AUDFeatureUnitRequest_GetChannel(pReq);
uint8_t bCtrl = AUDFeatureUnitRequest_GetControl(pReq);
uint8_t bGet = 1;
AUDDStream *pAuds = AUDD_GetCtlStream(pAudf, bIf, bEntity, bCh);
TRACE_INFO_WP("gCUR ");
TRACE_DEBUG("\b(E%d, CtlS%d, Ch%d, L%d) ", bEntity, bCtrl, bCh, bLength);
/* Get Mute 1 byte */
if (bCtrl == AUDFeatureUnitRequest_MUTE
&& bLength == 1
&& pAuds) {
auddXfrData.usbBuffer = ((pAuds->bmMute & (1<<bCh)) > 0);
}
else if (bCtrl == AUDFeatureUnitRequest_VOLUME
&& bLength == 2
&& pAuds && pAuds->pwVolumes) {
auddXfrData.usbBuffer = pAuds->pwVolumes[bCh];
}
else
bGet = 0;
if (bGet) {
USBD_Write(0, &auddXfrData.usbBuffer, bLength, 0, 0);
}
else {
USBD_Stall(0);
}
}
//------------------------------------------------------------------------------
/// Handles audio-specific USB requests sent by the host, and forwards
/// standard ones to the USB device driver.
/// \param request Pointer to a USBGenericRequest instance.
//------------------------------------------------------------------------------
void AUDDSpeakerDriver_RequestHandler(const USBGenericRequest *request)
{
unsigned char entity;
unsigned char interface;
TRACE_INFO_WP("NewReq ");
// Check if this is a class request
if (USBGenericRequest_GetType(request) == USBGenericRequest_CLASS) {
// Check if the request is supported
switch (USBGenericRequest_GetRequest(request)) {
case AUDGenericRequest_SETCUR:
TRACE_INFO_WP(
"sCur(0x%04X) ",
USBGenericRequest_GetIndex(request));
// Check the target interface and entity
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if ((entity == AUDDSpeakerDriverDescriptors_FEATUREUNIT)
&& (interface == AUDDSpeakerDriverDescriptors_CONTROL)) {
AUDDSpeakerDriver_SetFeatureCurrentValue(
entity,
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
}
else {
TRACE_WARNING(
"AUDDSpeakerDriver_RequestHandler: Unsupported entity/interface combination (0x%04X)\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
case AUDGenericRequest_GETCUR:
TRACE_INFO_WP(
"gCur(0x%04X) ",
USBGenericRequest_GetIndex(request));
// Check the target interface and entity
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if ((entity == AUDDSpeakerDriverDescriptors_FEATUREUNIT)
&& (interface == AUDDSpeakerDriverDescriptors_CONTROL)) {
AUDDSpeakerDriver_GetFeatureCurrentValue(
entity,
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
}
else {
TRACE_WARNING(
"AUDDSpeakerDriver_RequestHandler: Unsupported entity/interface combination (0x%04X)\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
default:
TRACE_WARNING(
"AUDDSpeakerDriver_RequestHandler: Unsupported request (%d)\n\r",
USBGenericRequest_GetRequest(request));
USBD_Stall(0);
}
}
// Check if this is a standard request
else if (USBGenericRequest_GetType(request) == USBGenericRequest_STANDARD) {
// Forward request to the standard handler
USBDDriver_RequestHandler(&(auddSpeakerDriver.usbdDriver), request);
}
// Unsupported request type
else {
TRACE_WARNING(
"AUDDSpeakerDriver_RequestHandler: Unsupported request type (%d)\n\r",
USBGenericRequest_GetType(request));
USBD_Stall(0);
}
}
//-----------------------------------------------------------------------------
/// Handles AUDIO-specific USB requests sent by the host
/// \param request Pointer to a USBGenericRequest instance.
/// \return 0 if the request is Unsupported, 1 if the request handled.
//-----------------------------------------------------------------------------
unsigned char AUDDFunctionDriver_RequestHandler(
const USBGenericRequest *request)
{
unsigned char entity;
unsigned char interface;
// Check if the request is supported
switch (USBGenericRequest_GetRequest(request)) {
case AUDGenericRequest_SETCUR:
TRACE_INFO_WP(
"sCur(0x%04X) ",
USBGenericRequest_GetIndex(request));
// Check the target interface and entity
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if ((entity == AUDD_Descriptors_FEATUREUNIT)
&& (interface == AUDD_Descriptors_CONTROL)) {
AUDD_SetFeatureCurrentValue(
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
}
else {
TRACE_WARNING(
"AUDDSpeakerDriver_RequestHandler: Unsupported entity/interface combination (0x%04X)\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
case AUDGenericRequest_GETCUR:
TRACE_INFO_WP(
"gCur(0x%04X) ",
USBGenericRequest_GetIndex(request));
// Check the target interface and entity
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if ((entity == AUDD_Descriptors_FEATUREUNIT)
&& (interface == AUDD_Descriptors_CONTROL)) {
AUDD_GetFeatureCurrentValue(
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
}
else {
TRACE_WARNING(
"AUDDSpeakerDriver_RequestHandler: Unsupported entity/interface combination (0x%04X)\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
default:
return 0;
}
return 1;
}