diff options
Diffstat (limited to 'chip/stm32/usb-stream.c')
| -rw-r--r-- | chip/stm32/usb-stream.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/chip/stm32/usb-stream.c b/chip/stm32/usb-stream.c index d077cb553b..133242ab67 100644 --- a/chip/stm32/usb-stream.c +++ b/chip/stm32/usb-stream.c @@ -12,7 +12,9 @@ #include "task.h" #include "timer.h" #include "util.h" +#include "usart.h" #include "usb_descriptor.h" +#include "usb_hw.h" #include "usb-stream.h" static size_t rx_read(struct usb_stream_config const *config) @@ -143,3 +145,38 @@ void usb_stream_reset(struct usb_stream_config const *config) (0 << 9) | /* Bulk EP */ (rx_disabled(config) ? EP_RX_NAK : EP_RX_VALID)); } + +int usb_usart_interface(struct usb_stream_config const *config, + struct usart_config const *usart, + int interface, + usb_uint *rx_buf, usb_uint *tx_buf) +{ + struct usb_setup_packet req; + + usb_read_setup_packet(rx_buf, &req); + + if (req.bmRequestType != (USB_DIR_OUT | + USB_TYPE_VENDOR | + USB_RECIP_INTERFACE)) + return -1; + + if (req.wIndex != interface || + req.wLength != 0) + return -1; + + switch (req.bRequest) { + /* Set parity. */ + case USB_USART_SET_PARITY: + usart_set_parity(usart, req.wValue); + break; + + /* TODO(nsanders): support reading parity. */ + /* TODO(nsanders): support baud. */ + default: + return -1; + } + + btable_ep[0].tx_count = 0; + STM32_TOGGLE_EP(0, EP_TX_RX_MASK, EP_TX_RX_VALID, EP_STATUS_OUT); + return 0; +} |