4  * SPDX-License-Identifier: Apache-2.0
13 #include <zephyr/dt-bindings/sensor/tmp116.h>
28 static int tmp116_reg_read(const struct device *dev, uint8_t reg,  in tmp116_reg_read()  argument
31 	const struct tmp116_dev_config *cfg = dev->config;  in tmp116_reg_read()
33 	if (i2c_burst_read_dt(&cfg->bus, reg, (uint8_t *)val, 2)  in tmp116_reg_read()
35 		return -EIO;  in tmp116_reg_read()
43 static int tmp116_reg_write(const struct device *dev, uint8_t reg,  in tmp116_reg_write()  argument
46 	const struct tmp116_dev_config *cfg = dev->config;  in tmp116_reg_write()
47 	uint8_t tx_buf[3] = {reg, val >> 8, val & 0xFF};  in tmp116_reg_write()
49 	return i2c_write_dt(&cfg->bus, tx_buf, sizeof(tx_buf));  in tmp116_reg_write()
69 static bool check_eeprom_bounds(const struct device *dev, off_t offset,  in check_eeprom_bounds()  argument
72 	struct tmp116_data *drv_data = dev->data;  in check_eeprom_bounds()
74 	if ((offset + len) > EEPROM_TMP116_SIZE ||  in check_eeprom_bounds()
75 	    offset % EEPROM_SIZE_REG != 0 ||  in check_eeprom_bounds()
80 	/* TMP117 uses EEPROM[2] as temperature offset register */  in check_eeprom_bounds()
81 	if (drv_data->id == TMP117_DEVICE_ID &&  in check_eeprom_bounds()
82 	    offset <= EEPROM_TMP117_RESERVED &&  in check_eeprom_bounds()
83 	    (offset + len) > EEPROM_TMP117_RESERVED) {  in check_eeprom_bounds()
90 int tmp116_eeprom_write(const struct device *dev, off_t offset,  in tmp116_eeprom_write()  argument
93 	uint8_t reg;  in tmp116_eeprom_write()  local
97 	if (!check_eeprom_bounds(dev, offset, len)) {  in tmp116_eeprom_write()
98 		return -EINVAL;  in tmp116_eeprom_write()
106 	for (reg = (offset / 2); reg < offset / 2 + len / 2; reg++) {  in tmp116_eeprom_write()
109 		res = tmp116_reg_write(dev, reg + TMP116_REG_EEPROM1, val);  in tmp116_eeprom_write()
134 int tmp116_eeprom_read(const struct device *dev, off_t offset, void *data,  in tmp116_eeprom_read()  argument
137 	uint8_t reg;  in tmp116_eeprom_read()  local
141 	if (!check_eeprom_bounds(dev, offset, len)) {  in tmp116_eeprom_read()
142 		return -EINVAL;  in tmp116_eeprom_read()
145 	for (reg = (offset / 2); reg < offset / 2 + len / 2; reg++) {  in tmp116_eeprom_read()
146 		res = tmp116_reg_read(dev, reg + TMP116_REG_EEPROM1, dst);  in tmp116_eeprom_read()
164  * @retval -EIO Otherwise
170 			dev->name);  in tmp116_device_id_check()
171 		return -EIO;  in tmp116_device_id_check()
176 			dev->name);  in tmp116_device_id_check()
177 		return -EINVAL;  in tmp116_device_id_check()
186 	struct tmp116_data *drv_data = dev->data;  in tmp116_sample_fetch()
195 	drv_data->sample = 0U;  in tmp116_sample_fetch()
201 			dev->name);  in tmp116_sample_fetch()
206 		LOG_DBG("%s: no data ready", dev->name);  in tmp116_sample_fetch()
207 		return -EBUSY;  in tmp116_sample_fetch()
214 			dev->name);  in tmp116_sample_fetch()
219 	drv_data->sample = (int16_t)value;  in tmp116_sample_fetch()
228 	struct tmp116_data *drv_data = dev->data;  in tmp116_channel_get()
232 		return -ENOTSUP;  in tmp116_channel_get()
239 	tmp = ((int16_t)drv_data->sample * (int32_t)TMP116_RESOLUTION) / 10;  in tmp116_channel_get()
240 	val->val1 = tmp / 1000000; /* uCelsius */  in tmp116_channel_get()
241 	val->val2 = tmp % 1000000;  in tmp116_channel_get()
269 		return -EINVAL;  in tmp116_conv_value()
278 	struct tmp116_data *drv_data = dev->data;  in tmp116_attr_set()
283 		return -ENOTSUP;  in tmp116_attr_set()
296 		if (drv_data->id != TMP117_DEVICE_ID) {  in tmp116_attr_set()
297 			LOG_ERR("%s: Offset is only supported by TMP117",  in tmp116_attr_set()
298 			dev->name);  in tmp116_attr_set()
299 			return -EINVAL;  in tmp116_attr_set()
302 		 * The offset is encoded into the temperature register format.  in tmp116_attr_set()
304 		value = (((val->val1) * 10000000) + ((val->val2) * 10))  in tmp116_attr_set()
311 		switch (val->val1) {  in tmp116_attr_set()
329 			return -EINVAL;  in tmp116_attr_set()
342 		return -ENOTSUP;  in tmp116_attr_set()
353 		return -ENOTSUP;  in tmp116_attr_get()
364 		return -ENOTSUP;  in tmp116_attr_get()
367 	val->val1 = data;  in tmp116_attr_get()
368 	val->val2 = 0;  in tmp116_attr_get()
382 	struct tmp116_data *drv_data = dev->data;  in tmp116_init()
383 	const struct tmp116_dev_config *cfg = dev->config;  in tmp116_init()
387 	if (!device_is_ready(cfg->bus.bus)) {  in tmp116_init()
388 		LOG_ERR("I2C dev %s not ready", cfg->bus.bus->name);  in tmp116_init()
389 		return -EINVAL;  in tmp116_init()
398 	drv_data->id = id;  in tmp116_init()
400 	rc = tmp116_write_config(dev, TMP116_CFGR_CONV, cfg->odr);  in tmp116_init()