hal_uart.c File Reference

#include "asf.h"
#include "hal_uart_dma.h"
#include "conf_board.h"
#include "stdio_serial.h"
#include "ioport.h"
#include "hal_tick.h"
#include "btstack_debug.h"
#include "btstack_config.h"

Macros
#define	ALL_INTERRUPT_MASK   0xffffffff
	All interrupt mask. More...
#define	DEBUG_PIN_1   PIO_PD16_IDX
#define	DEBUG_PIN_2   PIO_PD15_IDX

Functions
void	delay_check (uint32_t value)
static void	dummy_handler (void)
void	hal_uart_dma_init (void)
	Init and open device. More...
void	hal_uart_dma_receive_block (uint8_t *data, uint16_t size)
	Receive block. More...
void	hal_uart_dma_send_block (const uint8_t *data, uint16_t size)
	Send block. More...
int	hal_uart_dma_set_baud (uint32_t baud)
	Set baud rate. More...
void	hal_uart_dma_set_block_received (void(*the_block_handler)(void))
	Set callback for block received - can be called from ISR context. More...
void	hal_uart_dma_set_block_sent (void(*the_block_handler)(void))
	Set callback for block sent - can be called from ISR context. More...
void	hal_uart_dma_set_csr_irq_handler (void(*the_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...
static void	hal_uart_rts_high (void)
static void	hal_uart_rts_low (void)
void	USART_Handler (void)

Variables
static volatile uint16_t	bytes_to_read = 0
static volatile uint16_t	bytes_to_write = 0
static void(*	cts_irq_handler )(void) = dummy_handler
static int	hal_uart_dma_initialized = 0
static volatile uint8_t *	rx_buffer_ptr = 0
static void(*	rx_done_handler )(void) = dummy_handler
static volatile int	rx_notify
static int	simulate_flowcontrol
static volatile uint8_t *	tx_buffer_ptr = 0
static void(*	tx_done_handler )(void) = dummy_handler
static volatile int	tx_notify

#define ALL_INTERRUPT_MASK   0xffffffff

All interrupt mask.

Referenced by hal_uart_dma_init().

#define DEBUG_PIN_1   PIO_PD16_IDX

Referenced by hal_uart_dma_init().

#define DEBUG_PIN_2   PIO_PD15_IDX

Referenced by hal_uart_dma_init().

void delay_check

(

uint32_t

value

)

References vTaskDelay().

static void dummy_handler ( void  )

static

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

static void hal_uart_rts_high ( void  )

inlinestatic

References simulate_flowcontrol.

Referenced by USART_Handler().

static void hal_uart_rts_low ( void  )

inlinestatic

References simulate_flowcontrol.

Referenced by hal_uart_dma_receive_block().

void USART_Handler

(

void

)

References bytes_to_read, bytes_to_write, hal_uart_rts_high(), rx_buffer_ptr, rx_done_handler, rx_notify, tx_buffer_ptr, tx_done_handler, tx_notify, usart_disable_interrupt(), usart_get_status(), usart_read(), and usart_write().

volatile uint16_t bytes_to_read = 0

static

Referenced by hal_uart_dma_receive_block(), and USART_Handler().

volatile uint16_t bytes_to_write = 0

static

Referenced by atwilc3000_write_firmware(), atwilc3000_write_memory(), hal_uart_dma_send_block(), and USART_Handler().

void(* cts_irq_handler)(void) = dummy_handler

static

Referenced by hal_uart_dma_set_csr_irq_handler().

int hal_uart_dma_initialized = 0

static

Referenced by hal_uart_dma_init().

volatile uint8_t* rx_buffer_ptr = 0

static

Referenced by hal_uart_dma_receive_block(), and USART_Handler().

void(* rx_done_handler)(void) = dummy_handler

static

Referenced by hal_uart_dma_set_block_received(), and USART_Handler().

volatile int rx_notify

static

Referenced by hal_uart_dma_receive_block(), and USART_Handler().

int simulate_flowcontrol

static

Referenced by hal_uart_dma_init(), hal_uart_rts_high(), and hal_uart_rts_low().

volatile uint8_t* tx_buffer_ptr = 0

static

Referenced by hal_uart_dma_send_block(), and USART_Handler().

void(* tx_done_handler)(void) = dummy_handler

static

Referenced by hal_uart_dma_set_block_sent(), and USART_Handler().

volatile int tx_notify

static

Referenced by hal_uart_dma_send_block(), and USART_Handler().