gnss_internal_drivers.c File Reference

#include "main.h"
#include "debug_tools/debug_uart.h"
#include "debug_tools/debug_i2c.h"
#include "gnss_receiver/gnss_internal_drivers.h"
#include "gnss_receiver/gnss_firehose_storage.h"
#include "uart_handler/uart_handler.h"
#include "stm32/stm32_timing_helpers.h"
#include "log/log.h"
#include "timekeeping/timekeeping.h"
#include <stdint.h>
#include <string.h>

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Functions
static uint8_t	GNSS_send_cmd_get_response_when_firehose_storage_disabled (const char *cmd_buf, uint8_t cmd_buf_len, uint8_t rx_buf[], const uint16_t rx_buf_max_size, uint16_t *rx_buf_len_dest, uint8_t remove_null_bytes_in_middle)
	Sends a log command to the GNSS, and receives the response.
uint8_t	GNSS_send_cmd_get_response (const char *cmd_buf, uint8_t cmd_buf_len, uint8_t rx_buf[], const uint16_t rx_buf_max_size, uint16_t *rx_buf_len_dest, uint8_t remove_null_bytes_in_middle)
	Sends a log command to the GNSS, and receives the response.
const char *	GNSS_rx_mode_enum_to_str (GNSS_rx_mode_enum_t rx_mode)

Variables
UART_HandleTypeDef *	UART_gnss_port_handle
const uint32_t	GNSS_RX_TIMEOUT_BEFORE_FIRST_BYTE_MS = 800
GNSS_rx_mode_enum_t	GNSS_current_rx_mode = GNSS_RX_MODE_DISABLED
uint32_t	GNSS_write_cmd_mode_data_to_firehose_file = 1
	Boolean. Whether to store command-mode GNSS data to the firehose file.
const uint32_t	GNSS_RX_TIMEOUT_BETWEEN_BYTES_MS = 2500

Function Documentation

GNSS_rx_mode_enum_to_str()

const char * GNSS_rx_mode_enum_to_str

(

GNSS_rx_mode_enum_t

rx_mode

)

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GNSS_send_cmd_get_response()

uint8_t GNSS_send_cmd_get_response	(	const char *	cmd_buf,
		uint8_t	cmd_buf_len,
		uint8_t	rx_buf[],
		const uint16_t	rx_buf_max_size,
		uint16_t *	rx_buf_len_dest,
		uint8_t	remove_null_bytes_in_middle )

Sends a log command to the GNSS, and receives the response.

Parameters

cmd_buf	Log command string to send to the GNSS, without EOL characters.
cmd_buf_len	Exact length of the log command string.
rx_buf	Buffer to store the response (not necessarily null terminated).
rx_buf_max_size	Size of the response buffer.
rx_buf_len_dest	Pointer to place to store the length of the response buffer (not necessarily null terminated).
remove_null_bytes_in_middle	If non-zero, remove any null bytes in the middle of the response.

Returns

0 on success, >0 if error.

Note

This function is intended for "once" log commands and control commands.

This function does not validate the response, as related to the request.

This function properly handles interactions with the firehose file, if enabled.

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GNSS_send_cmd_get_response_when_firehose_storage_disabled()

uint8_t GNSS_send_cmd_get_response_when_firehose_storage_disabled ( const char * cmd_buf, uint8_t cmd_buf_len, uint8_t rx_buf[], const uint16_t rx_buf_max_size, uint16_t * rx_buf_len_dest, uint8_t remove_null_bytes_in_middle )

static

Sends a log command to the GNSS, and receives the response.

Parameters

cmd_buf	Log command string to send to the GNSS, without EOL characters.
cmd_buf_len	Exact length of the log command string.
rx_buf	Buffer to store the response (not necessarily null terminated).
rx_buf_max_size	Size of the response buffer.
rx_buf_len_dest	Pointer to place to store the length of the response buffer (not necessarily null terminated).

Returns

0 on success, >0 if error.

Note

This function is intended for "once" log commands and control commands.

This function does not validate the response, as related to the request.

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Variable Documentation

GNSS_current_rx_mode

GNSS_rx_mode_enum_t GNSS_current_rx_mode = GNSS_RX_MODE_DISABLED

GNSS_RX_TIMEOUT_BEFORE_FIRST_BYTE_MS

const uint32_t GNSS_RX_TIMEOUT_BEFORE_FIRST_BYTE_MS = 800

GNSS_RX_TIMEOUT_BETWEEN_BYTES_MS

const uint32_t GNSS_RX_TIMEOUT_BETWEEN_BYTES_MS = 2500

GNSS_write_cmd_mode_data_to_firehose_file

uint32_t GNSS_write_cmd_mode_data_to_firehose_file = 1

Boolean. Whether to store command-mode GNSS data to the firehose file.

If GNSS firehose storage mode is enabled, and the send_cmd_get_response function is used, this config variable controls whether the command-mode response data is written to the firehose file.

UART_gnss_port_handle

UART_HandleTypeDef* UART_gnss_port_handle

extern