uart_arch.c File Reference

UART/Serial driver implementation for ChibiOS arch. More...

#include "mcu_periph/uart_arch.h"
#include <ch.h>
#include <hal.h>
#include "mcu_periph/gpio.h"
#include <BOARD_CONFIG>

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Data Structures
struct	SerialInit

Macros
#define	UART_THREAD_STACK_SIZE   512
#define	SERIAL_INIT_NULL   { NULL, NULL, NULL, NULL, NULL, 0, 0 }

Functions
static UNUSED void	handle_uart_rx (struct uart_periph *p)
	RX handler. More...
static UNUSED void	handle_uart_tx (struct uart_periph *p)
	TX handler. More...
uint8_t	uart_getch (struct uart_periph *p)
void	uart_periph_set_baudrate (struct uart_periph *p, uint32_t baud)
	Set baudrate. More...
void	uart_periph_set_mode (struct uart_periph *p, bool tx_enabled, bool rx_enabled, bool hw_flow_control)
	Set mode (not necessary, or can be set by SerialConfig) More...
void	uart_periph_set_bits_stop_parity (struct uart_periph *p, uint8_t bits, uint8_t stop, uint8_t parity)
	Set parity and stop bits. More...
int	uart_check_free_space (struct uart_periph *p, long *fd, uint16_t len)
void	uart_put_byte (struct uart_periph *p, long fd, uint8_t data)
	Uart transmit implementation. More...
void	uart_put_buffer (struct uart_periph *p, long fd, const uint8_t *data, uint16_t len)
	Uart transmit buffer implementation. More...
void	uart_send_message (struct uart_periph *p, long fd)

Detailed Description

UART/Serial driver implementation for ChibiOS arch.

ChibiOS has a high level Serial Driver, for Paparazzi it is more convenient than pure UART driver (which needs callbacks etc.). This implementation is asynchronous and the RX thread has to use event flags. See ChibiOS documen- tation.

Definition in file uart_arch.c.

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Data Structure Documentation

SerialInit

struct SerialInit

Definition at line 48 of file uart_arch.c.

Data Fields
SerialConfig *	conf
uint16_t	cts_pin
ioportid_t	cts_port
mutex_t *	rx_mtx
semaphore_t *	rx_sem
mutex_t *	tx_mtx
semaphore_t *	tx_sem

Macro Definition Documentation

SERIAL_INIT_NULL

#define SERIAL_INIT_NULL   { NULL, NULL, NULL, NULL, NULL, 0, 0 }

Definition at line 58 of file uart_arch.c.

UART_THREAD_STACK_SIZE

#define UART_THREAD_STACK_SIZE   512

Definition at line 45 of file uart_arch.c.

Function Documentation

handle_uart_rx()

static UNUSED void handle_uart_rx ( struct uart_periph *  p )

static

RX handler.

Definition at line 63 of file uart_arch.c.

References p, SerialInit::rx_mtx, SerialInit::rx_sem, and UART_RX_BUFFER_SIZE.

handle_uart_tx()

static UNUSED void handle_uart_tx ( struct uart_periph *  p )

static

TX handler.

Definition at line 84 of file uart_arch.c.

References SerialInit::cts_pin, SerialInit::cts_port, gpio_get(), p, SerialInit::tx_mtx, SerialInit::tx_sem, and UART_TX_BUFFER_SIZE.

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uart_check_free_space()

int uart_check_free_space	(	struct uart_periph *	p,
		long *	fd,
		uint16_t	len
	)

Definition at line 1078 of file uart_arch.c.

References fd, p, SerialInit::tx_mtx, and UART_TX_BUFFER_SIZE.

Referenced by send_buffer_to_uart(), and tunnel_event().

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uart_getch()

uint8_t uart_getch

(

struct uart_periph *

p

)

Definition at line 968 of file uart_arch.c.

References p, SerialInit::rx_mtx, and UART_RX_BUFFER_SIZE.

Referenced by airspeed_uADC_event(), dw1000_arduino_event(), esc32_event(), gps_piksi_read(), high_speed_logger_direct_memory_periodic(), hott_check_serial_data(), hott_common_decode_event(), hott_send_telemetry_data(), jevois_event(), periodic_switch_uart(), sbus_common_decode_event(), spektrum_uart_check(), syslink_dl_event(), tunnel_event(), and vn200_read_buffer().

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uart_periph_set_baudrate()

void uart_periph_set_baudrate	(	struct uart_periph *	p,
		uint32_t	baud
	)

Set baudrate.

Definition at line 984 of file uart_arch.c.

References SerialInit::conf, and p.

Referenced by actuators_sbus_init(), gps_ubx_ucenter_autobaud(), gps_ubx_ucenter_configure(), hott_common_init(), px4flash_event(), sbus_common_init(), and uart_periph_init().

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uart_periph_set_bits_stop_parity()

void uart_periph_set_bits_stop_parity	(	struct uart_periph *	p,
		uint8_t	bits,
		uint8_t	stop,
		uint8_t	parity
	)

Set parity and stop bits.

Definition at line 1014 of file uart_arch.c.

References SerialInit::conf, p, UBITS_7, UPARITY_EVEN, UPARITY_ODD, and USTOP_2.

Referenced by actuators_sbus_init(), high_speed_logger_direct_memory_init(), hott_common_init(), and sbus_common_init().

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uart_periph_set_mode()

void uart_periph_set_mode	(	struct uart_periph *	p,
		bool	tx_enabled,
		bool	rx_enabled,
		bool	hw_flow_control
	)

Set mode (not necessary, or can be set by SerialConfig)

Definition at line 999 of file uart_arch.c.

Referenced by hott_enable_receiver(), and hott_enable_transmitter().

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uart_put_buffer()

void uart_put_buffer	(	struct uart_periph *	p,
		long	fd,
		const uint8_t *	data,
		uint16_t	len
	)

Uart transmit buffer implementation.

Definition at line 1123 of file uart_arch.c.

References fd, p, SerialInit::tx_mtx, SerialInit::tx_sem, and UART_TX_BUFFER_SIZE.

Referenced by actuators_ostrich_periodic(), if(), and send_message().

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uart_put_byte()

void uart_put_byte	(	struct uart_periph *	p,
		long	fd,
		uint8_t	data
	)

Uart transmit implementation.

Definition at line 1096 of file uart_arch.c.

References fd, p, SerialInit::tx_mtx, SerialInit::tx_sem, and UART_TX_BUFFER_SIZE.

Referenced by direct_memory_logger_periodic(), drop_ball(), esc32_periodic(), esc32_send(), gps_piksi_write(), hott_send_telemetry_data(), jevois_send_string(), send_buffer_to_uart(), tunnel_event(), uart_periph_init(), and uart_put_buffer().

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uart_send_message()

void uart_send_message	(	struct uart_periph *	p,
		long	fd
	)

Definition at line 1153 of file uart_arch.c.

References fd, p, SerialInit::tx_mtx, and SerialInit::tx_sem.