diff options
Diffstat (limited to 'zephyr/test/drivers/mkbp/src/mkbp_fifo.c')
-rw-r--r-- | zephyr/test/drivers/mkbp/src/mkbp_fifo.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/zephyr/test/drivers/mkbp/src/mkbp_fifo.c b/zephyr/test/drivers/mkbp/src/mkbp_fifo.c new file mode 100644 index 0000000000..e6a6ba5f04 --- /dev/null +++ b/zephyr/test/drivers/mkbp/src/mkbp_fifo.c @@ -0,0 +1,102 @@ +/* Copyright 2022 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include <zephyr/ztest.h> +#include <zephyr/drivers/emul.h> +#include <zephyr/kernel.h> +#include <zephyr/ztest_assert.h> +#include <zephyr/drivers/i2c_emul.h> + +#include "keyboard_config.h" +#include "mkbp_fifo.h" +#include "test/drivers/test_state.h" + +/* Tests for Matrix Keyboard Protocol (MKBP) */ + +/* Largest event size that we support */ +#define KEY_MATRIX_EVENT_DATA_SIZE KEYBOARD_COLS_MAX + +#define MAX_EVENT_DATA_SIZE KEY_MATRIX_EVENT_DATA_SIZE + +struct mkbp_fifo_fixture { + uint8_t input_event_data[MAX_EVENT_DATA_SIZE]; +}; + +static void *mkbp_fifo_setup(void) +{ + static struct mkbp_fifo_fixture fixture; + + return &fixture; +} + +static void mkbp_fifo_before(void *data) +{ + struct mkbp_fifo_fixture *fixture = data; + + mkbp_clear_fifo(); + memset(fixture->input_event_data, 0, MAX_EVENT_DATA_SIZE); + mkbp_fifo_depth_update(FIFO_DEPTH); +} + +static void mkbp_fifo_after(void *data) +{ + mkbp_clear_fifo(); + mkbp_fifo_depth_update(FIFO_DEPTH); +} + +static void fill_array_with_incrementing_numbers(int8_t *dst, int size) +{ + for (int i = 0; i < size; i++) { + dst[i] = i; + } +} + +ZTEST_F(mkbp_fifo, test_fifo_add_keyboard_key_matrix_event) +{ + uint8_t out[KEY_MATRIX_EVENT_DATA_SIZE + 1]; + + memset(out, 0, sizeof(out)); + + fill_array_with_incrementing_numbers(fixture->input_event_data, + KEY_MATRIX_EVENT_DATA_SIZE); + + /* Keyboard Key Matrix Event */ + zassert_ok(mkbp_fifo_add(EC_MKBP_EVENT_KEY_MATRIX, + fixture->input_event_data), + NULL); + + int dequeued_data_size = + mkbp_fifo_get_next_event(out, EC_MKBP_EVENT_KEY_MATRIX); + + zassert_equal(dequeued_data_size, KEY_MATRIX_EVENT_DATA_SIZE, NULL); + zassert_mem_equal(fixture->input_event_data, out, + KEY_MATRIX_EVENT_DATA_SIZE, NULL); + zassert_equal(out[KEY_MATRIX_EVENT_DATA_SIZE], 0, NULL); +} + +ZTEST_F(mkbp_fifo, test_fifo_depth_update) +{ + uint8_t out[KEY_MATRIX_EVENT_DATA_SIZE + 1]; + uint8_t new_depth = 0; + + mkbp_fifo_depth_update(new_depth); + fill_array_with_incrementing_numbers(fixture->input_event_data, + MAX_EVENT_DATA_SIZE); + zassert_equal(EC_ERROR_OVERFLOW, + mkbp_fifo_add(EC_MKBP_EVENT_KEY_MATRIX, + fixture->input_event_data), + NULL); + zassert_equal(-1, /* get_next_event explicitly returns -1 */ + mkbp_fifo_get_next_event(out, EC_MKBP_EVENT_KEY_MATRIX), + NULL); + + mkbp_fifo_depth_update(FIFO_DEPTH); + zassert_ok(mkbp_fifo_add(EC_MKBP_EVENT_KEY_MATRIX, + fixture->input_event_data), + NULL); +} + +ZTEST_SUITE(mkbp_fifo, drivers_predicate_post_main, mkbp_fifo_setup, + mkbp_fifo_before, mkbp_fifo_after, NULL); |