diff options
Diffstat (limited to 'zephyr/test/drivers/default/src/i2c_passthru.c')
| -rw-r--r-- | zephyr/test/drivers/default/src/i2c_passthru.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/zephyr/test/drivers/default/src/i2c_passthru.c b/zephyr/test/drivers/default/src/i2c_passthru.c new file mode 100644 index 0000000000..aea81fc198 --- /dev/null +++ b/zephyr/test/drivers/default/src/i2c_passthru.c @@ -0,0 +1,123 @@ +/* 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/kernel.h> +#include <zephyr/ztest.h> + +#include "driver/ln9310.h" +#include "ec_commands.h" +#include "host_command.h" +#include "i2c.h" +#include "test/drivers/test_state.h" + +ZTEST_USER(i2c_passthru, test_read_without_write) +{ + uint8_t param_buf[sizeof(struct ec_params_i2c_passthru) + + sizeof(struct ec_params_i2c_passthru_msg)]; + uint8_t response_buf[sizeof(struct ec_response_i2c_passthru) + 2]; + struct ec_params_i2c_passthru *params = + (struct ec_params_i2c_passthru *)¶m_buf; + struct ec_response_i2c_passthru *response = + (struct ec_response_i2c_passthru *)&response_buf; + struct host_cmd_handler_args args = + BUILD_HOST_COMMAND_SIMPLE(EC_CMD_I2C_PASSTHRU, 0); + + params->port = I2C_PORT_POWER; + params->num_msgs = 1; + params->msg[0].addr_flags = LN9310_I2C_ADDR_0_FLAGS | EC_I2C_FLAG_READ; + params->msg[0].len = 1; + args.params = ¶m_buf; + args.params_size = sizeof(param_buf); + args.response = &response_buf; + args.response_max = sizeof(response_buf); + + zassert_ok(host_command_process(&args), NULL); + zassert_ok(args.result, NULL); + zassert_equal(response->i2c_status, EC_I2C_STATUS_NAK, NULL); + zassert_equal(args.response_size, + sizeof(struct ec_response_i2c_passthru), NULL); +} + +ZTEST_USER(i2c_passthru, test_passthru_protect) +{ + struct ec_response_i2c_passthru_protect response; + struct ec_params_i2c_passthru_protect status_params = { + .port = I2C_PORT_SENSOR, + .subcmd = EC_CMD_I2C_PASSTHRU_PROTECT_STATUS, + }; + struct host_cmd_handler_args status_args = BUILD_HOST_COMMAND( + EC_CMD_I2C_PASSTHRU_PROTECT, 0, response, status_params); + struct ec_params_i2c_passthru_protect enable_params = { + .port = I2C_PORT_SENSOR, + .subcmd = EC_CMD_I2C_PASSTHRU_PROTECT_ENABLE, + }; + struct host_cmd_handler_args enable_args = BUILD_HOST_COMMAND_PARAMS( + EC_CMD_I2C_PASSTHRU_PROTECT, 0, enable_params); + + /* Check the protect status: 0 (unprotected) */ + zassert_ok(host_command_process(&status_args), NULL); + zassert_ok(status_args.result, NULL); + zassert_equal(status_args.response_size, sizeof(response), NULL); + zassert_equal(response.status, 0, "response.status = %d", + response.status); + + /* Protect the bus */ + zassert_ok(host_command_process(&enable_args), NULL); + zassert_ok(enable_args.result, NULL); + + /* Check the protect status: 1 (protected) */ + zassert_ok(host_command_process(&status_args), NULL); + zassert_ok(status_args.result, NULL); + zassert_equal(status_args.response_size, sizeof(response), NULL); + zassert_equal(response.status, 1, "response.status = %d", + response.status); + + /* Error case: wrong subcmd */ + status_params.subcmd = 10; + zassert_equal(host_command_process(&status_args), + EC_RES_INVALID_COMMAND, NULL); + status_params.subcmd = EC_CMD_I2C_PASSTHRU_PROTECT_STATUS; + + /* Error case: wrong port */ + status_params.port = 10; + zassert_equal(host_command_process(&status_args), EC_RES_INVALID_PARAM, + NULL); + status_params.port = I2C_PORT_SENSOR; + + /* Error case: response size not enough */ + status_args.response_max = 0; + zassert_equal(host_command_process(&status_args), EC_RES_INVALID_PARAM, + NULL); + status_args.response_max = sizeof(response); + + /* Error case: params size not enough */ + status_args.params_size = 0; + zassert_equal(host_command_process(&status_args), EC_RES_INVALID_PARAM, + NULL); + status_args.params_size = sizeof(status_params); +} + +ZTEST_USER(i2c_passthru, test_passthru_protect_tcpcs) +{ + struct ec_params_i2c_passthru_protect enable_params = { + .port = I2C_PORT_SENSOR, + .subcmd = EC_CMD_I2C_PASSTHRU_PROTECT_ENABLE_TCPCS, + }; + struct host_cmd_handler_args enable_args = BUILD_HOST_COMMAND_PARAMS( + EC_CMD_I2C_PASSTHRU_PROTECT, 0, enable_params); + + /* Protect the all TCPC buses */ + zassert_ok(host_command_process(&enable_args), NULL); + zassert_ok(enable_args.result, NULL); +} + +static void i2c_passthru_after(void *state) +{ + ARG_UNUSED(state); + i2c_passthru_protect_reset(); +} + +ZTEST_SUITE(i2c_passthru, drivers_predicate_post_main, NULL, NULL, + i2c_passthru_after, NULL); |