void MSC_ClassRequest(void)
{
g_u8MscStart = 1;
if (gUsbCmd.bmRequestType & 0x80) { /* request data transfer direction */
// Device to host
switch (gUsbCmd.bRequest) {
case GET_MAX_LUN: {
// Return current configuration setting
USBD_PrepareCtrlIn((uint8_t *)&g_u32MSCMaxLun, 1);
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk);
UBSD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk);
break;
}
default: {
/* Setup error, stall the device */
USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk);
break;
}
}
} else {
// Host to device
switch (gUsbCmd.bRequest) {
case BULK_ONLY_MASS_STORAGE_RESET: {
/* Status stage */
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk);
USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
UBSD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk);
break;
}
default: {
// Stall
/* Setup error, stall the device */
USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk);
break;
}
}
}
}
/**
* @brief Process GetDescriptor request
*
* @param None
*
* @return None
*
* @details Parse GetDescriptor request and perform the corresponding action.
*
*/
void USBD_GetDescriptor(void)
{
uint32_t u32Len;
u32Len = 0;
u32Len = g_usbd_SetupPacket[7];
u32Len <<= 8;
u32Len += g_usbd_SetupPacket[6];
switch(g_usbd_SetupPacket[3])
{
// Get Device Descriptor
case DESC_DEVICE:
{
u32Len = Minimum(u32Len, LEN_DEVICE);
DBG_PRINTF("Get device desc, %d\n", u32Len);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8DevDesc, u32Len);
USBD_PrepareCtrlOut(0, 0);
break;
}
// Get Configuration Descriptor
case DESC_CONFIG:
{
uint32_t u32TotalLen;
u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[3];
u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[2] + (u32TotalLen << 8);
DBG_PRINTF("Get config desc len %d, acture len %d\n", u32Len, u32TotalLen);
u32Len = Minimum(u32Len, u32TotalLen);
DBG_PRINTF("Minimum len %d\n", u32Len);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8ConfigDesc, u32Len);
USBD_PrepareCtrlOut(0, 0);
break;
}
// Get HID Descriptor
case DESC_HID:
{
int32_t i32IfNum;
int32_t i32TotalSize;
int32_t i32Idx;
uint8_t *pu8HidDesc;
int32_t i32Size = 0;
// Get total size of configuration descriptor
i32TotalSize = g_usbd_sInfo->gu8ConfigDesc[3];
i32TotalSize = (i32TotalSize << 8) | g_usbd_sInfo->gu8ConfigDesc[2];
// Get requested HID interface
i32IfNum = g_usbd_SetupPacket[4];
// Search specified HID descriptor in configuration descritpor
pu8HidDesc = NULL;
i32Idx = 1;
do{
// Search interface first and check HID class code (0x3) and check requested interface number
if((g_usbd_sInfo->gu8ConfigDesc[i32Idx] == DESC_INTERFACE) &&
(g_usbd_sInfo->gu8ConfigDesc[i32Idx+4] == 0x3) &&
(g_usbd_sInfo->gu8ConfigDesc[i32Idx+1] == i32IfNum))
{
// Calculate the offset of the requested HID descriptor in configuration descriptor
i32Idx = i32Idx-1+g_usbd_sInfo->gu8ConfigDesc[i32Idx-1];
pu8HidDesc = (uint8_t *)&g_usbd_sInfo->gu8ConfigDesc[i32Idx];
i32Size = pu8HidDesc[0];
DBG_PRINTF("HID desc at if=%d, offset=%d\n", i32IfNum, i32Idx);
break;
}
else
i32Idx += g_usbd_sInfo->gu8ConfigDesc[i32Idx-1]; // Seek to next descriptor
}while(i32Idx < i32TotalSize);
if(pu8HidDesc)
{
u32Len = Minimum(u32Len, i32Size);
USBD_PrepareCtrlIn(pu8HidDesc, u32Len);
USBD_PrepareCtrlOut(0, 0);
}
else
{
// No any HID descriptor found. Just stall.
USBD_SET_EP_STALL(EP0);
USBD_SET_EP_STALL(EP1);
DBG_PRINTF("No HID desc found. stall ctrl pipe\n");
}
break;
}
// Get Report Descriptor
case DESC_HID_RPT:
{
uint32_t u32RptDescLen;
uint8_t *pu8RptDesc;
if(g_usbd_pfnGetHidReportCallback)
pu8RptDesc = g_usbd_pfnGetHidReportCallback(g_usbd_SetupPacket[4] ,&u32RptDescLen);
else
{
pu8RptDesc = (uint8_t *)g_usbd_sInfo->gu8HidReportDesc;
u32RptDescLen = u32Len;
}
if(pu8RptDesc)
{
u32Len = Minimum(u32Len, u32RptDescLen);
DBG_PRINTF("Get report desc %d\n", u32Len);
USBD_PrepareCtrlIn(pu8RptDesc, u32Len);
USBD_PrepareCtrlOut(0, 0);
}
else
{
USBD_SET_EP_STALL(EP0);
USBD_SET_EP_STALL(EP1);
DBG_PRINTF("No HID report. stall ctrl pipe\n");
}
break;
}
// Get String Descriptor
case DESC_STRING:
{
// Get String Descriptor
if(g_usbd_SetupPacket[2] < 4)
{
u32Len = Minimum(u32Len, g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]][0]);
DBG_PRINTF("Get string desc %d\n", u32Len);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]], u32Len);
USBD_PrepareCtrlOut(0, 0);
break;
}
else
{
// Not support. Reply STALL.
USBD_SET_EP_STALL(EP0);
USBD_SET_EP_STALL(EP1);
DBG_PRINTF("Unsupported string desc (%d). Stall ctrl pipe.\n", g_usbd_SetupPacket[2]);
break;
}
}
default:
// Not support. Reply STALL.
USBD_SET_EP_STALL(EP0);
USBD_SET_EP_STALL(EP1);
DBG_PRINTF("Unsupported get desc type. stall ctrl pipe\n");
break;
}
}
void HID_ClassRequest(void)
{
uint8_t buf[8];
USBD_GetSetupPacket(buf);
if (buf[0] & 0x80) /* request data transfer direction */
{
// Device to host
switch (buf[1])
{
case GET_LINE_CODE:
{
if (buf[4] == 0) /* VCOM-1 */
{
USBD_MemCopy((uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)), (uint8_t *)&gLineCoding, 7);
}
/* Data stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 7);
/* Status stage */
USBD_PrepareCtrlOut(0,0);
break;
}
case GET_REPORT:
case GET_IDLE:
case GET_PROTOCOL:
default:
{
/* Setup error, stall the device */
USBD_SetStall(0);
break;
}
}
}
else
{
// Host to device
switch (buf[1])
{
case SET_CONTROL_LINE_STATE:
{
if (buf[4] == 0) /* VCOM-1 */
{
gCtrlSignal = buf[3];
gCtrlSignal = (gCtrlSignal << 8) | buf[2];
//printf("RTS=%d DTR=%d\n", (gCtrlSignal0 >> 1) & 1, gCtrlSignal0 & 1);
}
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
break;
}
case SET_LINE_CODE:
{
//g_usbd_UsbConfig = 0100;
if (buf[4] == 0) /* VCOM-1 */
USBD_PrepareCtrlOut((uint8_t *)&gLineCoding, 7);
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
// /* UART setting */
// if (buf[4] == 0) /* VCOM-1 */
// VCOM_LineCoding(0);
break;
}
case SET_REPORT:
{
if(buf[3] == 2)
{
/* Request Type = Output */
USBD_SET_DATA1(EP1);
USBD_SET_PAYLOAD_LEN(EP1, buf[6]);
/* Trigger for HID Int in */
USBD_SET_PAYLOAD_LEN(EP5, 0);
/* Status stage */
USBD_PrepareCtrlIn(0, 0);
}
break;
}
case SET_IDLE:
{
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
break;
}
case SET_PROTOCOL:
default:
{
// Stall
/* Setup error, stall the device */
USBD_SetStall(0);
break;
}
}
}
}
void HID_ClassRequest(void)
{
uint8_t buf[8];
USBD_GetSetupPacket(buf);
if(buf[0] & 0x80) /* request data transfer direction */
{
// Device to host
switch(buf[1])
{
case GET_REPORT:
// {
// break;
// }
case GET_IDLE:
// {
// break;
// }
case GET_PROTOCOL:
// {
// break;
// }
default:
{
/* Setup error, stall the device */
USBD_SetStall(0);
break;
}
}
}
else
{
// Host to device
switch(buf[1])
{
case SET_REPORT:
{
if(buf[3] == 3)
{
/* Request Type = Feature */
USBD_SET_DATA1(EP1);
USBD_SET_PAYLOAD_LEN(EP1, 0);
}
else if(buf[3] == 2)
{
/* Request Type = Output */
USBD_SET_DATA1(EP1);
USBD_SET_PAYLOAD_LEN(EP1, buf[6]);
/* Trigger for HID Int in */
USBD_SET_PAYLOAD_LEN(EP4, 0);
/* Status stage */
USBD_PrepareCtrlIn(0, 0);
}
break;
}
case SET_IDLE:
{
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
break;
}
case SET_PROTOCOL:
// {
// break;
// }
default:
{
// Stall
/* Setup error, stall the device */
USBD_SetStall(0);
break;
}
}
}
}
/**
* @brief Process GetDescriptor request
*
* @param None
*
* @return None
*
* @details Parse GetDescriptor request and perform the corresponding action.
*
*/
void USBD_GetDescriptor(void)
{
uint32_t u32Len;
u32Len = 0;
u32Len = g_usbd_SetupPacket[7];
u32Len <<= 8;
u32Len += g_usbd_SetupPacket[6];
switch(g_usbd_SetupPacket[3])
{
// Get Device Descriptor
case DESC_DEVICE:
{
u32Len = Minimum(u32Len, LEN_DEVICE);
DBG_PRINTF("Get device desc, %d\n", u32Len);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8DevDesc, u32Len);
break;
}
// Get Configuration Descriptor
case DESC_CONFIG:
{
uint32_t u32TotalLen;
u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[3];
u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[2] + (u32TotalLen << 8);
DBG_PRINTF("Get config desc len %d, acture len %d\n", u32Len, u32TotalLen);
u32Len = Minimum(u32Len, u32TotalLen);
DBG_PRINTF("Minimum len %d\n", u32Len);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8ConfigDesc, u32Len);
break;
}
// Get HID Descriptor
case DESC_HID:
{
/* CV3.0 HID Class Descriptor Test,
Need to indicate index of the HID Descriptor within gu8ConfigDescriptor, specifically HID Composite device. */
uint32_t u32ConfigDescOffset; // u32ConfigDescOffset is configuration descriptor offset (HID descriptor start index)
u32Len = Minimum(u32Len, LEN_HID);
DBG_PRINTF("Get HID desc, %d\n", u32Len);
u32ConfigDescOffset = g_usbd_sInfo->gu32ConfigHidDescIdx[g_usbd_SetupPacket[4]];
USBD_PrepareCtrlIn((uint8_t *)&g_usbd_sInfo->gu8ConfigDesc[u32ConfigDescOffset], u32Len);
break;
}
// Get Report Descriptor
case DESC_HID_RPT:
{
DBG_PRINTF("Get HID report, %d\n", u32Len);
u32Len = Minimum(u32Len, g_usbd_sInfo->gu32HidReportSize[g_usbd_SetupPacket[4]]);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[g_usbd_SetupPacket[4]], u32Len);
break;
}
// Get String Descriptor
case DESC_STRING:
{
// Get String Descriptor
if(g_usbd_SetupPacket[2] < 4)
{
u32Len = Minimum(u32Len, g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]][0]);
DBG_PRINTF("Get string desc %d\n", u32Len);
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]], u32Len);
break;
}
else
{
// Not support. Reply STALL.
USBD_SET_EP_STALL(EP0);
USBD_SET_EP_STALL(EP1);
DBG_PRINTF("Unsupported string desc (%d). Stall ctrl pipe.\n", g_usbd_SetupPacket[2]);
break;
}
}
default:
// Not support. Reply STALL.
USBD_SET_EP_STALL(EP0);
USBD_SET_EP_STALL(EP1);
DBG_PRINTF("Unsupported get desc type. stall ctrl pipe\n");
break;
}
}
