4  * SPDX-License-Identifier: Apache-2.0
92 	uint8_t gain;  member
104 	const struct tsl2561_config *config = dev->config;  in tsl2561_reg_read()
107 	ret = i2c_write_read_dt(&config->i2c, &cmd, 1U, buf, size);  in tsl2561_reg_read()
119 	const struct tsl2561_config *config = dev->config;  in tsl2561_reg_write()
125 	ret = i2c_write_dt(&config->i2c, buf, 2U);  in tsl2561_reg_write()
136 	const struct tsl2561_config *config = dev->config;  in tsl2561_sample_fetch()
137 	struct tsl2561_data *data = dev->data;  in tsl2561_sample_fetch()
143 		return -ENOTSUP;  in tsl2561_sample_fetch()
155 	k_msleep(config->integration_time);  in tsl2561_sample_fetch()
160 		LOG_ERR("Failed reading channel0 data");  in tsl2561_sample_fetch()
163 	data->ch0 = bytes[1] << 8 | bytes[0];  in tsl2561_sample_fetch()
170 	data->ch1 = bytes[1] << 8 | bytes[0];  in tsl2561_sample_fetch()
178 	LOG_DBG("channel0: 0x%x; channel1: 0x%x", data->ch0, data->ch1);  in tsl2561_sample_fetch()
186 	struct tsl2561_data *data = dev->data;  in tsl2561_channel_get()
187 	uint32_t channel0;  in tsl2561_channel_get()  local
191 		return -ENOTSUP;  in tsl2561_channel_get()
194 	channel0 = (data->ch0 * data->ch_scale) >> TSL2561_CH_SCALE;  in tsl2561_channel_get()
195 	channel1 = (data->ch1 * data->ch_scale) >> TSL2561_CH_SCALE;  in tsl2561_channel_get()
199 	if (channel0 != 0) {  in tsl2561_channel_get()
200 		ratio1 = (channel1 << (TSL2561_RATIO_SCALE + 1)) / channel0;  in tsl2561_channel_get()
235 	int32_t tmp = ((channel0 * b) - (channel1 * m));  in tsl2561_channel_get()
238 	tmp += (1 << (TSL2561_LUX_SCALE - 1));  in tsl2561_channel_get()
241 	val->val1 = tmp >> TSL2561_LUX_SCALE;  in tsl2561_channel_get()
243 	val->val2 = 0;  in tsl2561_channel_get()
255 	const struct tsl2561_config *config = dev->config;  in tsl2561_sensor_setup()
256 	struct tsl2561_data *data = dev->data;  in tsl2561_sensor_setup()
269 		LOG_ERR("Chip ID is invalid! Device @%02x is not TSL2561!", config->i2c.addr);  in tsl2561_sensor_setup()
270 		return -EIO;  in tsl2561_sensor_setup()
273 	switch (config->integration_time) {  in tsl2561_sensor_setup()
276 		data->ch_scale = TSL2561_CHSCALE_TINT0;  in tsl2561_sensor_setup()
280 		data->ch_scale = TSL2561_CHSCALE_TINT1;  in tsl2561_sensor_setup()
284 		data->ch_scale = (1 << TSL2561_CH_SCALE);  in tsl2561_sensor_setup()
288 		return -EINVAL;  in tsl2561_sensor_setup()
293 	switch (config->gain) {  in tsl2561_sensor_setup()
296 		data->ch_scale = data->ch_scale << 4;  in tsl2561_sensor_setup()
302 		LOG_ERR("Invalid ADC gain");  in tsl2561_sensor_setup()
303 		return -EINVAL;  in tsl2561_sensor_setup()
319 	const struct tsl2561_config *config = dev->config;  in tsl2561_init()
322 	if (!i2c_is_ready_dt(&config->i2c)) {  in tsl2561_init()
323 		LOG_ERR("I2C dev %s not ready", config->i2c.bus->name);  in tsl2561_init()
324 		return -ENODEV;  in tsl2561_init()
341 		.gain = DT_INST_PROP(n, gain)};                                                    \