| /* Bosch BMA4xx 3-axis accelerometer driver |
| * |
| * Copyright (c) 2023 Google LLC |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #define DT_DRV_COMPAT bosch_bma4xx |
| |
| #include <zephyr/drivers/i2c.h> |
| #include <zephyr/logging/log.h> |
| |
| #include "bma4xx.h" |
| |
| #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) |
| |
| LOG_MODULE_DECLARE(bma4xx, CONFIG_SENSOR_LOG_LEVEL); |
| |
| static int bma4xx_i2c_read_data(const struct device *dev, uint8_t reg_addr, |
| uint8_t *value, uint8_t len) |
| { |
| const struct bma4xx_config *cfg = dev->config; |
| |
| return i2c_burst_read_dt(&cfg->bus_cfg.i2c, reg_addr, value, |
| len); |
| } |
| |
| static int bma4xx_i2c_write_data(const struct device *dev, uint8_t reg_addr, |
| uint8_t *value, uint8_t len) |
| { |
| const struct bma4xx_config *cfg = dev->config; |
| |
| return i2c_burst_write_dt(&cfg->bus_cfg.i2c, reg_addr, value, |
| len); |
| } |
| |
| static int bma4xx_i2c_read_reg(const struct device *dev, uint8_t reg_addr, |
| uint8_t *value) |
| { |
| const struct bma4xx_config *cfg = dev->config; |
| |
| return i2c_reg_read_byte_dt(&cfg->bus_cfg.i2c, reg_addr, value); |
| } |
| |
| static int bma4xx_i2c_write_reg(const struct device *dev, uint8_t reg_addr, |
| uint8_t value) |
| { |
| const struct bma4xx_config *cfg = dev->config; |
| |
| return i2c_reg_write_byte_dt(&cfg->bus_cfg.i2c, reg_addr, value); |
| } |
| |
| static int bma4xx_i2c_update_reg(const struct device *dev, uint8_t reg_addr, |
| uint8_t mask, uint8_t value) |
| { |
| const struct bma4xx_config *cfg = dev->config; |
| |
| return i2c_reg_update_byte_dt(&cfg->bus_cfg.i2c, reg_addr, mask, value); |
| } |
| |
| static const struct bma4xx_hw_operations i2c_ops = { |
| .read_data = bma4xx_i2c_read_data, |
| .write_data = bma4xx_i2c_write_data, |
| .read_reg = bma4xx_i2c_read_reg, |
| .write_reg = bma4xx_i2c_write_reg, |
| .update_reg = bma4xx_i2c_update_reg, |
| }; |
| |
| int bma4xx_i2c_init(const struct device *dev) |
| { |
| struct bma4xx_data *data = dev->data; |
| const struct bma4xx_config *cfg = dev->config; |
| |
| if (!device_is_ready(cfg->bus_cfg.i2c.bus)) { |
| LOG_ERR("Bus device is not ready"); |
| return -ENODEV; |
| } |
| |
| data->hw_ops = &i2c_ops; |
| |
| return 0; |
| } |
| #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */ |