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Fix line settings being reset when baud rate is set #29

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Fix line settings being reset when baud rate is set #29

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10 changes: 8 additions & 2 deletions firmware/app/usb2uartjtag/usbd_ftdi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,9 @@ static void ftdi_set_baudrate(uint32_t itdf_divisor, uint32_t *actual_baudrate)
static int ftdi_vendor_request_handler(struct usb_setup_packet *pSetup,uint8_t **data,uint32_t *len)
{
static uint32_t actual_baudrate = 1200;
static uint8_t line_parity = 8;
static uint8_t line_databits = 0;
static uint8_t line_stopbits = 0;
switch (pSetup->bRequest)
{
case SIO_READ_EEPROM_REQUEST:
Expand Down Expand Up @@ -143,7 +146,7 @@ static int ftdi_vendor_request_handler(struct usb_setup_packet *pSetup,uint8_t *
ftdi_set_baudrate(pSetup->wValue|(baudrate_high<<16),&actual_baudrate);
if(actual_baudrate != 1200)
{
usbd_ftdi_set_line_coding(actual_baudrate, 8, 0, 0);
usbd_ftdi_set_line_coding(actual_baudrate, line_databits, line_parity, line_stopbits);
}
break;
}
Expand All @@ -157,7 +160,10 @@ static int ftdi_vendor_request_handler(struct usb_setup_packet *pSetup,uint8_t *
if(actual_baudrate != 1200)
{
//USBD_LOG("CDC_SET_LINE_CODING <%d %d %s %s>\r\n",actual_baudrate,(uint8_t)pSetup->wValue,parity_name[(uint8_t)(pSetup->wValue>>8)],stop_name[(uint8_t)(pSetup->wValue>>11)]);
usbd_ftdi_set_line_coding(actual_baudrate,(uint8_t)pSetup->wValue,(uint8_t)(pSetup->wValue>>8),(uint8_t)(pSetup->wValue>>11));
line_databits = (uint8_t)(pSetup->wValue);
line_parity = (uint8_t)(pSetup->wValue >> 8) & 0x07;
line_stopbits = (uint8_t)(pSetup->wValue >> 11) & 0x03;
usbd_ftdi_set_line_coding(actual_baudrate, line_databits, line_parity, line_stopbits);
}
break;

Expand Down