diff options
Diffstat (limited to 'chip/stm32/usb-stream.h')
| -rw-r--r-- | chip/stm32/usb-stream.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/chip/stm32/usb-stream.h b/chip/stm32/usb-stream.h index f829009c51..5a584327a5 100644 --- a/chip/stm32/usb-stream.h +++ b/chip/stm32/usb-stream.h @@ -16,6 +16,7 @@ #include "hooks.h" #include "producer.h" #include "queue.h" +#include "usart.h" #include "usb_descriptor.h" #include "usb_hw.h" @@ -230,12 +231,57 @@ extern struct producer_ops const usb_stream_producer_ops; RX_QUEUE, \ TX_QUEUE) +/* Declare a utility interface for setting parity/baud. */ +#define USB_USART_IFACE(NAME, INTERFACE, USART_CFG) \ + static int CONCAT2(NAME, _interface_)(usb_uint *rx_buf, \ + usb_uint *tx_buf) \ + { return usb_usart_interface(&NAME, &USART_CFG, INTERFACE, \ + rx_buf, tx_buf); } \ + USB_DECLARE_IFACE(INTERFACE, \ + CONCAT2(NAME, _interface_)) + +/* This is a medium version for declaring Google serial endpoints */ +#define USB_STREAM_CONFIG_USART_IFACE(NAME, \ + INTERFACE, \ + INTERFACE_NAME, \ + ENDPOINT, \ + RX_SIZE, \ + TX_SIZE, \ + RX_QUEUE, \ + TX_QUEUE, \ + USART_CFG) \ + USB_STREAM_CONFIG_FULL(NAME, \ + INTERFACE, \ + USB_CLASS_VENDOR_SPEC, \ + USB_SUBCLASS_GOOGLE_SERIAL, \ + USB_PROTOCOL_GOOGLE_SERIAL, \ + INTERFACE_NAME, \ + ENDPOINT, \ + RX_SIZE, \ + TX_SIZE, \ + RX_QUEUE, \ + TX_QUEUE); \ + USB_USART_IFACE(NAME, INTERFACE, USART_CFG) + /* * Handle USB and Queue request in a deferred callback. */ void usb_stream_deferred(struct usb_stream_config const *config); /* + * Handle control interface requests. + */ +enum usb_usart { + USB_USART_REQ_PARITY = 0, + USB_USART_SET_PARITY = 1, + USB_USART_REQ_BAUD = 2, + USB_USART_SET_BAUD = 3, +}; +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); + +/* * These functions are used by the trampoline functions defined above to * connect USB endpoint events with the generic USB stream driver. */ |