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added RTS and DTR to UART interface

This commit is contained in:
cyber-murmel 2022-05-17 13:24:42 +02:00 committed by Rachel Mant
parent 7dc01e96e8
commit 6656284728
2 changed files with 19 additions and 7 deletions
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16
src/platforms/common/cdcacm.c
View File

@ -450,13 +450,21 @@ static enum usbd_request_return_codes cdcacm_control_request(usbd_device *dev,
switch(req->bRequest) {
case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
cdcacm_set_modem_state(dev, req->wIndex, true, true);
/* Ignore if not for GDB interface */
if(req->wIndex != GDB_IF_NO)
switch(req->wIndex) {
case UART_IF_NO:
#ifdef USBUSART_DTR_PIN
gpio_set_val(USBUSART_PORT, USBUSART_DTR_PIN, !(req->wValue & 1));
#endif
#ifdef USBUSART_RTS_PIN
gpio_set_val(USBUSART_PORT, USBUSART_RTS_PIN, !((req->wValue >> 1) & 1));
#endif
return USBD_REQ_HANDLED;
case GDB_IF_NO:
cdcacm_gdb_dtr = req->wValue & 1;
return USBD_REQ_HANDLED;
default:
return USBD_REQ_NOTSUPP;
}
case USB_CDC_REQ_SET_LINE_CODING:
if(*len < sizeof(struct usb_cdc_line_coding))
return USBD_REQ_NOTSUPP;

4
src/platforms/swlink/platform.h
View File

@ -88,6 +88,8 @@ int usbuart_debug_write(const char *buf, size_t len);
gpio_set_mode(USBUSART_PORT, GPIO_MODE_INPUT, \
GPIO_CNF_INPUT_PULL_UPDOWN, USBUSART_RX_PIN); \
gpio_set(USBUSART_PORT, USBUSART_RX_PIN); \
gpio_set_mode(USBUSART_PORT, GPIO_MODE_OUTPUT_50_MHZ, \
GPIO_CNF_OUTPUT_PUSHPULL, USBUSART_RTS_PIN | USBUSART_DTR_PIN); \
} while(0)
#define USB_DRIVER st_usbfs_v1_usb_driver
@ -110,6 +112,8 @@ int usbuart_debug_write(const char *buf, size_t len);
#define USBUSART_PORT GPIOB
#define USBUSART_TX_PIN GPIO6
#define USBUSART_RX_PIN GPIO7
#define USBUSART_RTS_PIN GPIO8
#define USBUSART_DTR_PIN GPIO9
#define USBUSART_ISR(x) usart1_isr(x)
#define USBUSART_DMA_BUS DMA1
#define USBUSART_DMA_CLK RCC_DMA1