/**
* @brief VCP_Ctrl
* Manage the CDC class requests
* @param Cmd: Command code
* @param Buf: Buffer containing command data (request parameters)
* @param Len: Number of data to be sent (in bytes)
* @retval Result of the opeartion (USBD_OK in all cases)
*/
static uint16_t VCP_Ctrl(uint32_t Cmd, uint8_t* Buf, uint32_t Len)
{
LINE_CODING* plc = (LINE_CODING*)Buf;
assert_param(Len>=sizeof(LINE_CODING));
switch (Cmd) {
/* Not needed for this driver, AT modem commands */
case SEND_ENCAPSULATED_COMMAND:
case GET_ENCAPSULATED_RESPONSE:
break;
// Not needed for this driver
case SET_COMM_FEATURE:
case GET_COMM_FEATURE:
case CLEAR_COMM_FEATURE:
break;
//Note - hw flow control on UART 1-3 and 6 only
case SET_LINE_CODING:
// If a callback is provided, tell the upper driver of changes in baud rate
if (plc && (Len == sizeof (*plc))) {
if (baudRateCb) {
baudRateCb(baudRateCbContext, plc->bitrate);
}
ust_cpy(&g_lc, plc); //Copy into structure to save for later
}
break;
case GET_LINE_CODING:
if (plc && (Len == sizeof (*plc))) {
ust_cpy(plc, &g_lc);
}
break;
case SET_CONTROL_LINE_STATE:
// If a callback is provided, tell the upper driver of changes in DTR/RTS state
if (plc && (Len == sizeof (uint16_t))) {
if (ctrlLineStateCb) {
ctrlLineStateCb(ctrlLineStateCbContext, *((uint16_t *)Buf));
}
}
break;
case SEND_BREAK:
/* Not needed for this driver */
break;
default:
break;
}
return USBD_OK;
}
/**
* @brief VCP_Ctrl
* Manage the CDC class requests
* @param Cmd: Command code
* @param Buf: Buffer containing command data (request parameters)
* @param Len: Number of data to be sent (in bytes)
* @retval Result of the opeartion (USBD_OK in all cases)
*/
static uint16_t VCP_Ctrl(uint32_t Cmd, uint8_t* Buf, uint32_t Len)
{
LINE_CODING* plc = (LINE_CODING*)Buf;
assert_param(Len>=sizeof(LINE_CODING));
switch (Cmd) {
/* Not needed for this driver, AT modem commands */
case SEND_ENCAPSULATED_COMMAND:
case GET_ENCAPSULATED_RESPONSE:
break;
// Not needed for this driver
case SET_COMM_FEATURE:
case GET_COMM_FEATURE:
case CLEAR_COMM_FEATURE:
break;
//Note - hw flow control on UART 1-3 and 6 only
case SET_LINE_CODING:
if (!ust_config(DISCOVERY_COM, plc))
return USBD_FAIL;
ust_cpy(&g_lc, plc); //Copy into structure to save for later
break;
case GET_LINE_CODING:
ust_cpy(plc, &g_lc);
break;
case SET_CONTROL_LINE_STATE:
/* Not needed for this driver */
//RSW - This tells how to set RTS and DTR
break;
case SEND_BREAK:
/* Not needed for this driver */
break;
default:
break;
}
return USBD_OK;
}
