Add UART support

Author: tannewt

Makefile

@@ -243,3 +243,12 @@ stubs:
 update-frozen-libraries:
 	@echo "Updating all frozen libraries to latest tagged version."
 	cd frozen; for library in *; do cd $$library; ../../tools/git-checkout-latest-tag.sh; cd ..; done
+
+one-of-each: all-source
+	make -C ports/atmel-samd BOARD=trinket_m0
+	make -C ports/atmel-samd BOARD=feather_m4_express
+	make -C ports/esp32s2 BOARD=espressif_saola_1_wroom
+	make -C ports/litex BOARD=fomu
+	make -C ports/mimxrt10xx BOARD=feather_mimxrt1011
+	make -C ports/nrf BOARD=feather_nrf52840_express
+	make -C ports/stm BOARD=feather_stm32f405_express

ports/atmel-samd/common-hal/busio/UART.c

@@ -58,7 +58,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
     const mcu_pin_obj_t * tx, const mcu_pin_obj_t * rx,
     const mcu_pin_obj_t * rts, const mcu_pin_obj_t * cts,
     const mcu_pin_obj_t * rs485_dir, bool rs485_invert,
-    uint32_t baudrate, uint8_t bits, uart_parity_t parity, uint8_t stop,
+    uint32_t baudrate, uint8_t bits, busio_uart_parity_t parity, uint8_t stop,
     mp_float_t timeout, uint16_t receiver_buffer_size, byte* receiver_buffer,
     bool sigint_enabled) {
 
@@ -195,7 +195,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
                                  SERCOM_USART_CTRLA_FORM_Msk);
     sercom->USART.CTRLA.reg |= SERCOM_USART_CTRLA_TXPO(tx_pad / 2) |
                                SERCOM_USART_CTRLA_RXPO(rx_pad) |
-                               (parity == PARITY_NONE ? 0 : SERCOM_USART_CTRLA_FORM(1));
+                               (parity == BUSIO_UART_PARITY_NONE ? 0 : SERCOM_USART_CTRLA_FORM(1));
 
     // Enable tx and/or rx based on whether the pins were specified.
     // CHSIZE is 0 for 8 bits, 5, 6, 7 for 5, 6, 7 bits. 1 for 9 bits, but we don't support that.
@@ -206,7 +206,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
                                  SERCOM_USART_CTRLB_CHSIZE_Msk);
     sercom->USART.CTRLB.reg |= (have_tx ? SERCOM_USART_CTRLB_TXEN : 0) |
                                (have_rx ? SERCOM_USART_CTRLB_RXEN : 0) |
-                               (parity == PARITY_ODD ? SERCOM_USART_CTRLB_PMODE : 0) |
+                               (parity == BUSIO_UART_PARITY_ODD ? SERCOM_USART_CTRLB_PMODE : 0) |
                                (stop > 1 ? SERCOM_USART_CTRLB_SBMODE : 0) |
                                SERCOM_USART_CTRLB_CHSIZE(bits % 8);
 

ports/cxd56/common-hal/busio/UART.c

@@ -56,7 +56,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
     const mcu_pin_obj_t * tx, const mcu_pin_obj_t * rx,
     const mcu_pin_obj_t * rts, const mcu_pin_obj_t * cts,
     const mcu_pin_obj_t * rs485_dir, bool rs485_invert,
-    uint32_t baudrate, uint8_t bits, uart_parity_t parity, uint8_t stop,
+    uint32_t baudrate, uint8_t bits, busio_uart_parity_t parity, uint8_t stop,
     mp_float_t timeout, uint16_t receiver_buffer_size, byte* receiver_buffer,
     bool sigint_enabled) {
     struct termios tio;
@@ -69,7 +69,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
         mp_raise_ValueError(translate("Could not initialize UART"));
     }
 
-    if (parity != PARITY_NONE) {
+    if (parity != BUSIO_UART_PARITY_NONE) {
         mp_raise_ValueError(translate("Could not initialize UART"));
     }