sam/drivers/i2sc/unit_tests/unit_tests.c File Reference

Unit tests for I2S driver.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include <conf_test.h>
#include <string.h>

Macros
#define	CMP_BLOCK   32
#define	SOUND_SAMPLES   0x100
#define	TEST_OUT_LOOP   10

Functions
static bool	check_samples (bool right)
	Return true if samples check is good. More...
int	main (void)
	Run I2SC driver unit tests. More...
static void	run_i2s_test (const struct test_case *test)
	Test audio data transfer and receive. More...
static void	start_transfer (struct i2s_dev_inst *dev_inst)
	Start transfer for test. More...
static void	stop_transfer (struct i2s_dev_inst *dev_inst)
	Stop transfer for test. More...
static void	wait_transfer (struct i2s_dev_inst *dev_inst)
	Wait transfer done for test. More...

Variables
int16_t	input_samples_left [SOUND_SAMPLES *2]
int16_t	input_samples_right [SOUND_SAMPLES *2]
int16_t	off_cmp_left [SOUND_SAMPLES/CMP_BLOCK]
int16_t	off_cmp_right [SOUND_SAMPLES/CMP_BLOCK]
int16_t	output_samples_left [SOUND_SAMPLES *2]
int16_t	output_samples_right [SOUND_SAMPLES *2]

#define CMP_BLOCK   32

#define SOUND_SAMPLES   0x100

Referenced by check_samples(), and wait_transfer().

#define TEST_OUT_LOOP   10

static bool check_samples ( bool  right )

static

Return true if samples check is good.

References input_samples_left, input_samples_right, off_cmp_left, off_cmp_right, output_samples_left, output_samples_right, and SOUND_SAMPLES.

Referenced by run_i2s_test().

int main

(

void

)

Run I2SC driver unit tests.

References uart_rs232_options::baudrate, board_init(), DEFINE_TEST_ARRAY, DEFINE_TEST_CASE, DEFINE_TEST_SUITE, NULL, run_i2s_test(), stdio_serial_init(), sysclk_init(), test_suite_run(), and usart_serial_options.

static void run_i2s_test ( const struct test_case *  test )

static

Test audio data transfer and receive.

Parameters

test	Current test case.

References check_samples(), i2s_config::data_format, i2s_config::fs_ratio, I2S_DATA_16BIT, i2s_disable(), i2s_enable(), i2s_enable_clocks(), i2s_enable_reception(), i2s_enable_transmission(), I2S_FS_RATE_256, i2s_get_config_defaults(), i2s_init(), i2s_config::loopback, start_transfer(), stop_transfer(), test_assert_true, and wait_transfer().

Referenced by main().

static void start_transfer ( struct i2s_dev_inst *  dev_inst )

static

Start transfer for test.

Referenced by run_i2s_test().

static void stop_transfer ( struct i2s_dev_inst *  dev_inst )

static

Stop transfer for test.

Referenced by run_i2s_test().

static void wait_transfer ( struct i2s_dev_inst *  dev_inst )

static

Wait transfer done for test.

References i2s_read(), i2s_write(), input_samples_left, input_samples_right, output_samples_left, output_samples_right, and SOUND_SAMPLES.

Referenced by run_i2s_test().

int16_t input_samples_left[SOUND_SAMPLES *2]

Referenced by check_samples(), and wait_transfer().

int16_t input_samples_right[SOUND_SAMPLES *2]

Referenced by check_samples(), and wait_transfer().

int16_t off_cmp_left[SOUND_SAMPLES/CMP_BLOCK]

Referenced by check_samples().

int16_t off_cmp_right[SOUND_SAMPLES/CMP_BLOCK]

Referenced by check_samples().

int16_t output_samples_left[SOUND_SAMPLES *2]

Referenced by check_samples(), and wait_transfer().

int16_t output_samples_right[SOUND_SAMPLES *2]

Referenced by check_samples(), and wait_transfer().