1 // SPDX-License-Identifier: GPL-2.0
3  * cros_ec_light_prox - Driver for light and prox sensors behing CrosEC.
26  * light sensors to return the what the eye would see. For proximity, we
33 	/* Shared by all sensors */
47 	int idx = chan->scan_index;  in cros_ec_light_prox_read()
49 	mutex_lock(&st->core.cmd_lock);  in cros_ec_light_prox_read()
53 		if (chan->type == IIO_PROXIMITY) {  in cros_ec_light_prox_read()
61 			ret = -EINVAL;  in cros_ec_light_prox_read()
65 		if (chan->type == IIO_LIGHT) {  in cros_ec_light_prox_read()
72 			 * pre-processed and represents the ambient light  in cros_ec_light_prox_read()
78 			ret = -EINVAL;  in cros_ec_light_prox_read()
82 		st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET;  in cros_ec_light_prox_read()
83 		st->core.param.sensor_offset.flags = 0;  in cros_ec_light_prox_read()
85 		ret = cros_ec_motion_send_host_cmd(&st->core, 0);  in cros_ec_light_prox_read()
90 		st->core.calib[0].offset =  in cros_ec_light_prox_read()
91 			st->core.resp->sensor_offset.offset[0];  in cros_ec_light_prox_read()
93 		*val = st->core.calib[idx].offset;  in cros_ec_light_prox_read()
102 		st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE;  in cros_ec_light_prox_read()
103 		st->core.param.sensor_range.data = EC_MOTION_SENSE_NO_VALUE;  in cros_ec_light_prox_read()
105 		ret = cros_ec_motion_send_host_cmd(&st->core, 0);  in cros_ec_light_prox_read()
109 		val64 = st->core.resp->sensor_range.ret;  in cros_ec_light_prox_read()
115 		ret = cros_ec_sensors_core_read(&st->core, chan, val, val2,  in cros_ec_light_prox_read()
120 	mutex_unlock(&st->core.cmd_lock);  in cros_ec_light_prox_read()
131 	int idx = chan->scan_index;  in cros_ec_light_prox_write()
133 	mutex_lock(&st->core.cmd_lock);  in cros_ec_light_prox_write()
137 		st->core.calib[idx].offset = val;  in cros_ec_light_prox_write()
139 		st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET;  in cros_ec_light_prox_write()
140 		st->core.param.sensor_offset.flags = MOTION_SENSE_SET_OFFSET;  in cros_ec_light_prox_write()
141 		st->core.param.sensor_offset.offset[0] =  in cros_ec_light_prox_write()
142 			st->core.calib[0].offset;  in cros_ec_light_prox_write()
143 		st->core.param.sensor_offset.temp =  in cros_ec_light_prox_write()
145 		ret = cros_ec_motion_send_host_cmd(&st->core, 0);  in cros_ec_light_prox_write()
148 		st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE;  in cros_ec_light_prox_write()
149 		st->core.curr_range = (val << 16) | (val2 / 100);  in cros_ec_light_prox_write()
150 		st->core.param.sensor_range.data = st->core.curr_range;  in cros_ec_light_prox_write()
151 		ret = cros_ec_motion_send_host_cmd(&st->core, 0);  in cros_ec_light_prox_write()
153 			st->core.range_updated = true;  in cros_ec_light_prox_write()
156 		ret = cros_ec_sensors_core_write(&st->core, chan, val, val2,  in cros_ec_light_prox_write()
161 	mutex_unlock(&st->core.cmd_lock);  in cros_ec_light_prox_write()
174 	struct device *dev = &pdev->dev;  in cros_ec_light_prox_probe()
182 		return -ENOMEM;  in cros_ec_light_prox_probe()
189 	indio_dev->info = &cros_ec_light_prox_info;  in cros_ec_light_prox_probe()
191 	channel = state->channels;  in cros_ec_light_prox_probe()
194 	channel->info_mask_shared_by_all =  in cros_ec_light_prox_probe()
196 	channel->info_mask_shared_by_all_available =  in cros_ec_light_prox_probe()
198 	channel->scan_type.realbits = CROS_EC_SENSOR_BITS;  in cros_ec_light_prox_probe()
199 	channel->scan_type.storagebits = CROS_EC_SENSOR_BITS;  in cros_ec_light_prox_probe()
200 	channel->scan_type.shift = 0;  in cros_ec_light_prox_probe()
201 	channel->scan_index = 0;  in cros_ec_light_prox_probe()
202 	channel->ext_info = cros_ec_sensors_ext_info;  in cros_ec_light_prox_probe()
203 	channel->scan_type.sign = 'u';  in cros_ec_light_prox_probe()
206 	switch (state->core.type) {  in cros_ec_light_prox_probe()
208 		channel->type = IIO_LIGHT;  in cros_ec_light_prox_probe()
209 		channel->info_mask_separate =  in cros_ec_light_prox_probe()
215 		channel->type = IIO_PROXIMITY;  in cros_ec_light_prox_probe()
216 		channel->info_mask_separate =  in cros_ec_light_prox_probe()
222 		dev_warn(dev, "Unknown motion sensor\n");  in cros_ec_light_prox_probe()
223 		return -EINVAL;  in cros_ec_light_prox_probe()
228 	channel->type = IIO_TIMESTAMP;  in cros_ec_light_prox_probe()
229 	channel->channel = -1;  in cros_ec_light_prox_probe()
230 	channel->scan_index = 1;  in cros_ec_light_prox_probe()
231 	channel->scan_type.sign = 's';  in cros_ec_light_prox_probe()
232 	channel->scan_type.realbits = 64;  in cros_ec_light_prox_probe()
233 	channel->scan_type.storagebits = 64;  in cros_ec_light_prox_probe()
235 	indio_dev->channels = state->channels;  in cros_ec_light_prox_probe()
237 	indio_dev->num_channels = CROS_EC_LIGHT_PROX_MAX_CHANNELS;  in cros_ec_light_prox_probe()
239 	state->core.read_ec_sensors_data = cros_ec_sensors_read_cmd;  in cros_ec_light_prox_probe()
247 		.name = "cros-ec-prox",
250 		.name = "cros-ec-light",
258 		.name	= "cros-ec-light-prox",
266 MODULE_DESCRIPTION("ChromeOS EC light/proximity sensors driver");