📄 uachidsys.c
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void UAC_CtrlGetDescriptorOut(void * pVoid)
{
gu32BytesInUsbBuf = 0;
gpu8UsbBuf = 0;
gIsOverRequest = 0;
}
void UAC_CtrlGetDescriptorIn(void * pVoid)
{
uint32_t u32Len;
DBG_PRINTF(" >>> 0x%08x %d size.\n", gpu8UsbBuf, gu32BytesInUsbBuf);
if (gpu8UsbBuf)
{
if (gu32BytesInUsbBuf == 0)
{
/* Zero packet */
DrvUSB_DataIn(0, gpu8UsbBuf, 0);
gpu8UsbBuf = 0;
}
else
{
u32Len = Minimum(gu32BytesInUsbBuf, UAC_MAX_PACKET_SIZE_EP0);
DrvUSB_DataIn(0, gpu8UsbBuf, u32Len);
gpu8UsbBuf += u32Len;
gu32BytesInUsbBuf -= u32Len;
if(gu32BytesInUsbBuf == 0)
{
if (u32Len < UAC_MAX_PACKET_SIZE_EP0)
{
/* This should be last IN packet due to it is less than UAC_MAX_PACKET_SIZE_EP0 */
gpu8UsbBuf = 0;
}
else
{
if (!gIsOverRequest)
{
/* This should be the last IN packet because there is no more data to
transfer and it is not over request transfer */
gpu8UsbBuf = 0;
}
}
}
}
}
else
{
/* The EP id 1 should always be used as control (OUT) endpoint */
_DRVUSB_TRIG_EP(1,0x00);
}
}
/*---------------------------------------------------------------------------------------------------------*/
/* */
/* FUNCTION */
/* UAC_CtrlSetupGetDescriptor() */
/* */
/* DESCRIPTION */
/* The callback funciton for get descriptor request ack event. */
/* */
/* INPUTS */
/* pVoid A pointer of UAC device. */
/* */
/* OUTPUTS */
/* None */
/* */
/* RETURN */
/* None */
/* */
/*---------------------------------------------------------------------------------------------------------*/
void UAC_CtrlSetupGetDescriptor(void * pVoid)
{
S_UAC_DEVICE *psDevice = (S_UAC_DEVICE *) pVoid;
S_DRVUSB_DEVICE *pInfraDevice = (S_DRVUSB_DEVICE *)psDevice->device;
uint16_t u16Len;
s_u8ConfigLenOver64 = 0;
u16Len = 0;
u16Len = pInfraDevice->au8Setup[7];
u16Len <<= 8;
u16Len += pInfraDevice->au8Setup[6];
gIsOverRequest = 0;
gu32BytesInUsbBuf = 0;
gpu8UsbBuf = 0;
switch (pInfraDevice->au8Setup[3])
{
/* Get Device Descriptor */
case DESC_DEVICE:
{
UAC_PrepareDescriptors(gau8DeviceDescriptor, LEN_DEVICE, u16Len, UAC_MAX_PACKET_SIZE_EP0);
/* Prepare the OUT to avoid HOST stop data phase without all data transfered. */
_DRVUSB_TRIG_EP(1,0x00);
break;
}
/* Get Configuration Descriptor */
case DESC_CONFIG:
{
UAC_PrepareDescriptors(gau8ConfigDescriptor, gau8ConfigDescriptor[2] + gau8ConfigDescriptor[3]*256, u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
}
/* Get HID Descriptor */
case DESC_HID:
{
UAC_PrepareDescriptors(g_UAC_sDevice.pu8HIDDescriptor, LEN_HID, u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
}
/* Get Report Descriptor */
case DESC_HID_RPT:
{
UAC_PrepareDescriptors(g_UAC_sDevice.pu8ReportDescriptor, g_UAC_sDevice.u32ReportDescriptorSize, u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
}
/* Get String Descriptor */
case DESC_STRING:
{
// Get Language
if (pInfraDevice->au8Setup[2] == 0)
{
UAC_PrepareDescriptors(gau8StringLang, 4, u16Len, UAC_MAX_PACKET_SIZE_EP0);
}
else
{
// Get String Descriptor
switch (pInfraDevice->au8Setup[2])
{
case 1:
UAC_PrepareDescriptors((const uint8_t *)gau8VendorStringDescriptor, gau8VendorStringDescriptor[0], u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
case 2:
UAC_PrepareDescriptors((const uint8_t *)gau8ProductStringDescriptor, gau8ProductStringDescriptor[0], u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
case 3:
UAC_PrepareDescriptors(gau8StringSerial, gau8StringSerial[0], u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
case 4:
UAC_PrepareDescriptors(gau8StringAudio, gau8StringAudio[0], u16Len, UAC_MAX_PACKET_SIZE_EP0);
break;
default:
/* Not support. Reply STALL. */
DrvUSB_ClrCtrlReadyAndTrigStall();
}
}
break;
}
default:
/* Not support. Reply STALL. */
DrvUSB_ClrCtrlReadyAndTrigStall();
break;
}
}
void UAC_ClassCtrlSetCurRequest(void * pVoid)
{
S_UAC_DEVICE *psDevice = (S_UAC_DEVICE *) pVoid;
S_DRVUSB_DEVICE *psUsbDevice = (S_DRVUSB_DEVICE *)psDevice->device;
if (REC_FEATURE_UNITID == psUsbDevice->au8Setup[5])
{
switch ( psUsbDevice->au8Setup[3])
{
case MUTE_CONTROL:
_DRVUSB_TRIG_EP(1,psUsbDevice->au8Setup[6]);
break;
case VOLUME_CONTROL:
_DRVUSB_TRIG_EP(1,psUsbDevice->au8Setup[6]);
break;
default:
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
break;
}
}
else if (PLAY_FEATURE_UNITID == psUsbDevice->au8Setup[5])
{
switch ( psUsbDevice->au8Setup[3])
{
case MUTE_CONTROL:
_DRVUSB_TRIG_EP(1,psUsbDevice->au8Setup[6]);
break;
case VOLUME_CONTROL:
_DRVUSB_TRIG_EP(1,psUsbDevice->au8Setup[6]);
break;
default:
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
break;
}
}
else
{
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
}
}
void UAC_ClassCtrlGetCurRequest(void * pVoid)
{
S_UAC_DEVICE *psDevice = (S_UAC_DEVICE *) pVoid;
S_DRVUSB_DEVICE *psUsbDevice = (S_DRVUSB_DEVICE *)psDevice->device;
if(REC_FEATURE_UNITID == psUsbDevice->au8Setup[5])
{
switch ( psUsbDevice->au8Setup[3])
{
case MUTE_CONTROL:
{
psUsbDevice->sEpCrl[0].u8SramBuffer[0] = psDevice->u8RecMute;
_DRVUSB_SET_EP_TOG_BIT(0, FALSE);
_DRVUSB_TRIG_EP(0, 1);
break;
}
case VOLUME_CONTROL:
{
psUsbDevice->sEpCrl[0].u8SramBuffer[0] = (uint8_t)(psDevice->i16RecVolume);
psUsbDevice->sEpCrl[0].u8SramBuffer[1] = (uint8_t)(psDevice->i16RecVolume >> 8);
_DRVUSB_SET_EP_TOG_BIT(0, FALSE);
_DRVUSB_TRIG_EP(0, 2);
break;
}
default:
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
break;
}
}
else if (PLAY_FEATURE_UNITID == psUsbDevice->au8Setup[5])
{
switch ( psUsbDevice->au8Setup[3])
{
case MUTE_CONTROL:
{
psUsbDevice->sEpCrl[0].u8SramBuffer[0] = psDevice->u8PlayMute;
_DRVUSB_SET_EP_TOG_BIT(0, FALSE);
_DRVUSB_TRIG_EP(0, 1);
break;
}
case VOLUME_CONTROL:
{
if(psUsbDevice->au8Setup[2] == 1)
{
psUsbDevice->sEpCrl[0].u8SramBuffer[0] = (uint8_t)(psDevice->i16PlayVolumeL);
psUsbDevice->sEpCrl[0].u8SramBuffer[1] = (uint8_t)(psDevice->i16PlayVolumeL >> 8);
}
else
{
psUsbDevice->sEpCrl[0].u8SramBuffer[0] = (uint8_t)(psDevice->i16PlayVolumeR);
psUsbDevice->sEpCrl[0].u8SramBuffer[1] = (uint8_t)(psDevice->i16PlayVolumeR >> 8);
}
_DRVUSB_SET_EP_TOG_BIT(0, FALSE);
_DRVUSB_TRIG_EP(0, 2);
break;
}
default:
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
break;
}
}
else
{
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
}
}
void UAC_ClassCtrlGetMinRequest(void * pVoid)
{
S_UAC_DEVICE *psDevice = (S_UAC_DEVICE *) pVoid;
S_DRVUSB_DEVICE *psUsbDevice = (S_DRVUSB_DEVICE *)psDevice->device;
if (REC_FEATURE_UNITID == psUsbDevice->au8Setup[5])
{
switch (psUsbDevice->au8Setup[3])
{
case VOLUME_CONTROL:
psUsbDevice->sEpCrl[0].u8SramBuffer[0] = (uint8_t)(psDevice->i16RecMinVolume);
psUsbDevice->sEpCrl[0].u8SramBuffer[1] = (uint8_t)(psDevice->i16RecMinVolume >> 8);
_DRVUSB_SET_EP_TOG_BIT(0, FALSE);
_DRVUSB_TRIG_EP(0, 2);
break;
default:
/* STALL control pipe */
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(0);
_DRVUSB_CLEAR_EP_READY_AND_TRIG_STALL(1);
break;
}
}
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