hal_uart_dma.h File Reference

#include <stdint.h>
#include "btstack_config.h"

Functions
void	delay_check (uint32_t value)
void	hal_uart_dma_init (void)
	Init and open device. More...
void	hal_uart_dma_receive_block (uint8_t *buffer, uint16_t len)
	Receive block. More...
void	hal_uart_dma_send_block (const uint8_t *buffer, uint16_t length)
	Send block. More...
int	hal_uart_dma_set_baud (uint32_t baud)
	Set baud rate. More...
void	hal_uart_dma_set_block_received (void(*callback)(void))
	Set callback for block received - can be called from ISR context. More...
void	hal_uart_dma_set_block_sent (void(*callback)(void))
	Set callback for block sent - can be called from ISR context. More...
void	hal_uart_dma_set_csr_irq_handler (void(*csr_irq_handler)(void))
	Set or clear callback for CSR pulse - can be called from ISR context. More...
void	hal_uart_dma_set_sleep (uint8_t sleep)
	Set sleep mode. More...

void delay_check

(

uint32_t

value

)

References vTaskDelay().

void hal_uart_dma_init

(

void

)

Init and open device.

References ALL_INTERRUPT_MASK, DEBUG_PIN_1, DEBUG_PIN_2, hal_uart_dma_initialized, IOPORT_DIR_OUTPUT, IOPORT_PIN_LEVEL_HIGH, IOPORT_PIN_LEVEL_LOW, ioport_set_pin_dir(), ioport_set_pin_level(), log_info, simulate_flowcontrol, sysclk_enable_peripheral_clock(), sysclk_get_peripheral_hz(), usart_disable_interrupt(), usart_enable_rx(), usart_enable_tx(), usart_init_rs232(), and vTaskDelay().

Referenced by btstack_uart_block_freertos_open().

void hal_uart_dma_receive_block	(	uint8_t *	buffer,
		uint16_t	len
	)

Receive block.

When done, callback set by hal_uart_dma_set_block_received must be called

Parameters

buffer
lengh

References bytes_to_read, hal_uart_rts_low(), rx_buffer_ptr, rx_notify, and usart_enable_interrupt().

void hal_uart_dma_send_block	(	const uint8_t *	buffer,
		uint16_t	length
	)

Send block.

When done, callback set by hal_uart_set_block_sent must be called

Parameters

buffer
lengh

References bytes_to_write, log_error, tx_buffer_ptr, tx_notify, and usart_enable_interrupt().

int hal_uart_dma_set_baud

(

uint32_t

baud

)

Set baud rate.

Note

During baud change, TX line should stay high and no data should be received on RX accidentally

Parameters

baudrate

References log_error, sysclk_get_peripheral_hz(), usart_disable_rx(), usart_disable_tx(), usart_enable_rx(), usart_enable_tx(), and usart_set_async_baudrate().

Referenced by btstack_uart_block_freertos_open().

void hal_uart_dma_set_block_received

(

void(*)(void)

callback

)

Set callback for block received - can be called from ISR context.

Parameters

callback

References rx_done_handler.

Referenced by btstack_uart_block_freertos_init().

void hal_uart_dma_set_block_sent

(

void(*)(void)

callback

)

Set callback for block sent - can be called from ISR context.

Parameters

callback

References tx_done_handler.

Referenced by btstack_uart_block_freertos_init().

void hal_uart_dma_set_csr_irq_handler

(

void(*)(void)

csr_irq_handler

)

Set or clear callback for CSR pulse - can be called from ISR context.

Parameters

csr_irq_handler

or NULL to disable IRQ handler

References cts_irq_handler.

void hal_uart_dma_set_sleep

(

uint8_t

sleep

)

Set sleep mode.

Parameters

block_received

callback