serial_drv.c File Reference

Handles Serial driver functionalities.

Copyright (c) 2018 Microchip Technology Inc. and its subsidiaries.

#include "asf.h"
#include "serial_drv.h"
#include "serial_fifo.h"
#include "ble_utils.h"
#include "conf_serialdrv.h"

Functions
uint8_t	configure_serial_drv (uint32_t bus_baudrate)
	Initializes the Serial IO Module. More...
void	platform_configure_sleep_manager (void)
void	platform_enter_critical_section (void)
void	platform_leave_critical_section (void)
void	platform_process_rxdata (uint8_t t_rx_data)
void	platform_restore_from_sleep (void)
uint32_t	platform_serial_drv_tx_status (void)
void	platform_set_ble_rts_high (void)
void	platform_set_ble_rts_low (void)
void	platform_set_hostsleep (void)
void	platform_start_rx (void)
	This module performs serial input/output functionalities via UART. More...
uint16_t	serial_drive_rx_data_count (void)
static void	serial_drv_read_cb (struct usart_module *const usart_module)
uint16_t	serial_drv_send (uint8_t *data, uint16_t len)
	Transmits data via UART. More...
uint8_t	serial_read_byte (uint16_t *data)
uint8_t	serial_read_data (uint8_t *data, uint16_t max_len)
	Receives data from UART. More...
static void	usart_configure (uint32_t baudrate)

Variables
static uint16_t	rx_data
struct usart_module	usart_instance
volatile bool	wakeup_pin_status = true

uint8_t configure_serial_drv

(

uint32_t

)

Initializes the Serial IO Module.

Returns

STATUS_OK for successful initialization and FAILURE incase the IO is not initialized

References STATUS_OK, and usart_configure().

Referenced by platform_init().

void platform_configure_sleep_manager

(

void

)

void platform_enter_critical_section

(

void

)

References system_interrupt_enter_critical_section().

Referenced by platform_start_timer(), and platform_stop_timer().

void platform_leave_critical_section

(

void

)

References system_interrupt_leave_critical_section().

Referenced by platform_start_timer(), and platform_stop_timer().

void platform_process_rxdata

(

uint8_t

t_rx_data

)

void platform_restore_from_sleep

(

void

)

uint32_t platform_serial_drv_tx_status

(

void

)

References usart_get_job_status(), usart_instance, and USART_TRANSCEIVER_TX.

void platform_set_ble_rts_high

(

void

)

References usart_disable_transceiver(), usart_instance, and USART_TRANSCEIVER_RX.

void platform_set_ble_rts_low

(

void

)

References usart_enable_transceiver(), usart_instance, and USART_TRANSCEIVER_RX.

void platform_set_hostsleep

(

void

)

References HOST_SYSTEM_SLEEP_MODE, system_set_sleepmode(), and system_sleep().

void platform_start_rx

(

void

)

This module performs serial input/output functionalities via UART.

References rx_data, and serial_read_byte().

Referenced by platform_recv_async(), and usart_configure().

uint16_t serial_drive_rx_data_count

(

void

)

static void serial_drv_read_cb ( struct usart_module *const  usart_module )

static

References platform_process_rxdata(), and rx_data.

Referenced by usart_configure().

uint16_t serial_drv_send	(	uint8_t *	data,
		uint16_t	len
	)

Transmits data via UART.

Parameters

data	Pointer to the buffer where the data to be transmitted is present
length	Number of bytes to be transmitted

Returns

Number of bytes actually transmitted

References STATUS_OK, usart_get_job_status(), usart_instance, USART_TRANSCEIVER_TX, and usart_write_buffer_job().

Referenced by platform_send_sync().

uint8_t serial_read_byte

(

uint16_t *

data

)

References usart_instance, and usart_read_job().

Referenced by platform_start_rx().

uint8_t serial_read_data	(	uint8_t *	data,
		uint16_t	max_len
	)

Receives data from UART.

Parameters

data	pointer to the buffer where the received data is to be stored
max_length	maximum length of data to be received

Returns

actual number of bytes received

References usart_instance, and usart_read_buffer_job().

static void usart_configure ( uint32_t  baudrate )

inlinestatic

References usart_config::baudrate, CONF_BLE_MUX_SETTING, CONF_BLE_PINMUX_PAD0, CONF_BLE_PINMUX_PAD1, CONF_BLE_UART_CLOCK, CONF_BLE_USART_MODULE, usart_config::generator_source, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, platform_start_rx(), serial_drv_read_cb(), STATUS_OK, USART_CALLBACK_BUFFER_RECEIVED, usart_enable(), usart_enable_callback(), usart_get_config_defaults(), usart_init(), usart_instance, usart_register_callback(), and usart_reset().

Referenced by configure_serial_drv().

uint16_t rx_data

static

Referenced by platform_start_rx(), and serial_drv_read_cb().

struct usart_module usart_instance

Referenced by platform_serial_drv_tx_status(), platform_set_ble_rts_high(), platform_set_ble_rts_low(), serial_drv_send(), serial_read_byte(), serial_read_data(), and usart_configure().

volatile bool wakeup_pin_status = true