4  * SPDX-License-Identifier: Apache-2.0
18 	struct max30101_data *data = dev->data;  in max30101_sample_fetch()
19 	const struct max30101_config *config = dev->config;  in max30101_sample_fetch()
27 	num_bytes = data->num_channels * MAX30101_BYTES_PER_CHANNEL;  in max30101_sample_fetch()
28 	if (i2c_burst_read_dt(&config->i2c, MAX30101_REG_FIFO_DATA, buffer,  in max30101_sample_fetch()
31 		return -EIO;  in max30101_sample_fetch()
36 		/* Each channel is 18-bits */  in max30101_sample_fetch()
42 		data->raw[fifo_chan++] = fifo_data;  in max30101_sample_fetch()
52 	struct max30101_data *data = dev->data;  in max30101_channel_get()
71 		return -ENOTSUP;  in max30101_channel_get()
78 	fifo_chan = data->map[led_chan];  in max30101_channel_get()
81 		return -ENOTSUP;  in max30101_channel_get()
85 	val->val1 = data->raw[fifo_chan];  in max30101_channel_get()
86 	val->val2 = 0;  in max30101_channel_get()
98 	const struct max30101_config *config = dev->config;  in max30101_init()
99 	struct max30101_data *data = dev->data;  in max30101_init()
105 	if (!device_is_ready(config->i2c.bus)) {  in max30101_init()
107 		return -ENODEV;  in max30101_init()
111 	if (i2c_reg_read_byte_dt(&config->i2c, MAX30101_REG_PART_ID,  in max30101_init()
114 		return -EIO;  in max30101_init()
119 		return -EIO;  in max30101_init()
123 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_MODE_CFG,  in max30101_init()
125 		return -EIO;  in max30101_init()
130 		if (i2c_reg_read_byte_dt(&config->i2c, MAX30101_REG_MODE_CFG,  in max30101_init()
132 			LOG_ERR("Could read mode cfg after reset");  in max30101_init()
133 			return -EIO;  in max30101_init()
138 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_FIFO_CFG,  in max30101_init()
139 				  config->fifo)) {  in max30101_init()
140 		return -EIO;  in max30101_init()
143 	/* Write the mode configuration register */  in max30101_init()
144 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_MODE_CFG,  in max30101_init()
145 				  config->mode)) {  in max30101_init()
146 		return -EIO;  in max30101_init()
150 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_SPO2_CFG,  in max30101_init()
151 				  config->spo2)) {  in max30101_init()
152 		return -EIO;  in max30101_init()
156 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_LED1_PA,  in max30101_init()
157 				  config->led_pa[0])) {  in max30101_init()
158 		return -EIO;  in max30101_init()
160 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_LED2_PA,  in max30101_init()
161 				  config->led_pa[1])) {  in max30101_init()
162 		return -EIO;  in max30101_init()
164 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_LED3_PA,  in max30101_init()
165 				  config->led_pa[2])) {  in max30101_init()
166 		return -EIO;  in max30101_init()
172 	/* Write the multi-LED mode control registers */  in max30101_init()
173 	multi_led[0] = (config->slot[1] << 4) | (config->slot[0]);  in max30101_init()
174 	multi_led[1] = (config->slot[3] << 4) | (config->slot[2]);  in max30101_init()
176 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_MULTI_LED,  in max30101_init()
178 		return -EIO;  in max30101_init()
180 	if (i2c_reg_write_byte_dt(&config->i2c, MAX30101_REG_MULTI_LED + 1,  in max30101_init()
182 		return -EIO;  in max30101_init()
187 	data->num_channels = 0U;  in max30101_init()
189 		data->map[led_chan] = MAX30101_MAX_NUM_CHANNELS;  in max30101_init()
197 		led_chan = (config->slot[fifo_chan] & MAX30101_SLOT_LED_MASK)-1;  in max30101_init()
199 			data->map[led_chan] = fifo_chan;  in max30101_init()
200 			data->num_channels++;  in max30101_init()
208 	.i2c = I2C_DT_SPEC_INST_GET(0),
217 	.mode = MAX30101_MODE_HEART_RATE,
223 	.mode = MAX30101_MODE_SPO2,
229 	.mode = MAX30101_MODE_MULTI_LED,