diff options
Diffstat (limited to 'zephyr/emul/i2c_mock.c')
| -rw-r--r-- | zephyr/emul/i2c_mock.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/zephyr/emul/i2c_mock.c b/zephyr/emul/i2c_mock.c new file mode 100644 index 0000000000..7c3722ad2e --- /dev/null +++ b/zephyr/emul/i2c_mock.c @@ -0,0 +1,70 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#define DT_DRV_COMPAT cros_i2c_mock + +#include <device.h> +#include "emul/emul_common_i2c.h" + +#include <logging/log.h> +LOG_MODULE_REGISTER(i2c_mock, CONFIG_I2C_MOCK_LOG_LEVEL); + +struct i2c_emul *i2c_mock_to_i2c_emul(const struct emul *emul) +{ + struct i2c_common_emul_data *data = emul->data; + + return &(data->emul); +} + +void i2c_mock_reset(const struct emul *emul) +{ + struct i2c_emul *i2c_emul = i2c_mock_to_i2c_emul(emul); + + i2c_common_emul_set_read_fail_reg(i2c_emul, + I2C_COMMON_EMUL_NO_FAIL_REG); + i2c_common_emul_set_write_fail_reg(i2c_emul, + I2C_COMMON_EMUL_NO_FAIL_REG); + i2c_common_emul_set_read_func(i2c_emul, NULL, NULL); + i2c_common_emul_set_write_func(i2c_emul, NULL, NULL); +} + +uint16_t i2c_mock_get_addr(const struct emul *emul) +{ + const struct i2c_common_emul_cfg *cfg = emul->cfg; + + return cfg->addr; +} + +static const struct i2c_emul_api i2c_mock_api = { + .transfer = i2c_common_emul_transfer, +}; + +static int i2c_mock_init(const struct emul *emul, + const struct device *parent) +{ + const struct i2c_common_emul_cfg *cfg = emul->cfg; + struct i2c_common_emul_data *data = emul->data; + + data->emul.api = &i2c_mock_api; + data->emul.addr = cfg->addr; + data->emul.parent = emul; + data->i2c = parent; + data->cfg = cfg; + i2c_common_emul_init(data); + + return i2c_emul_register(parent, emul->dev_label, &data->emul); +} + +#define INIT_I2C_MOCK(n) \ + static const struct i2c_common_emul_cfg i2c_mock_cfg_##n = { \ + .i2c_label = DT_INST_BUS_LABEL(n), \ + .dev_label = DT_INST_LABEL(n), \ + .addr = DT_INST_REG_ADDR(n), \ + }; \ + static struct i2c_common_emul_data i2c_mock_data_##n; \ + EMUL_DEFINE(i2c_mock_init, DT_DRV_INST(n), &i2c_mock_cfg_##n, \ + &i2c_mock_data_##n) + +DT_INST_FOREACH_STATUS_OKAY(INIT_I2C_MOCK) |