1 // SPDX-License-Identifier: GPL-2.0
20 #define DRV_NAME		"cros-ec-sensorhub"
54 	struct cros_ec_command *msg = sensorhub->msg;  in cros_ec_sensorhub_register()
55 	struct cros_ec_dev *ec = sensorhub->ec;  in cros_ec_sensorhub_register()  local
60 	msg->version = 1;  in cros_ec_sensorhub_register()
61 	msg->insize = sizeof(struct ec_response_motion_sense);  in cros_ec_sensorhub_register()
62 	msg->outsize = sizeof(struct ec_params_motion_sense);  in cros_ec_sensorhub_register()
64 	for (i = 0; i < sensorhub->sensor_num; i++) {  in cros_ec_sensorhub_register()
65 		sensorhub->params->cmd = MOTIONSENSE_CMD_INFO;  in cros_ec_sensorhub_register()
66 		sensorhub->params->info.sensor_num = i;  in cros_ec_sensorhub_register()
68 		ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg);  in cros_ec_sensorhub_register()
70 			dev_warn(dev, "no info for EC sensor %d : %d/%d\n",  in cros_ec_sensorhub_register()
71 				 i, ret, msg->result);  in cros_ec_sensorhub_register()
75 		switch (sensorhub->resp->info.type) {  in cros_ec_sensorhub_register()
77 			name = "cros-ec-accel";  in cros_ec_sensorhub_register()
80 			name = "cros-ec-baro";  in cros_ec_sensorhub_register()
83 			name = "cros-ec-gyro";  in cros_ec_sensorhub_register()
86 			name = "cros-ec-mag";  in cros_ec_sensorhub_register()
89 			name = "cros-ec-prox";  in cros_ec_sensorhub_register()
92 			name = "cros-ec-light";  in cros_ec_sensorhub_register()
95 			name = "cros-ec-activity";  in cros_ec_sensorhub_register()
99 				 sensorhub->resp->info.type);  in cros_ec_sensorhub_register()
107 		sensor_type[sensorhub->resp->info.type]++;  in cros_ec_sensorhub_register()
111 		ec->has_kb_wake_angle = true;  in cros_ec_sensorhub_register()
113 	if (cros_ec_check_features(ec,  in cros_ec_sensorhub_register()
116 							"cros-ec-lid-angle",  in cros_ec_sensorhub_register()
127 	struct device *dev = &pdev->dev;  in cros_ec_sensorhub_probe()
128 	struct cros_ec_dev *ec = dev_get_drvdata(dev->parent);  in cros_ec_sensorhub_probe()  local
135 			       ec->ec_dev->max_response), GFP_KERNEL);  in cros_ec_sensorhub_probe()
137 		return -ENOMEM;  in cros_ec_sensorhub_probe()
139 	msg->command = EC_CMD_MOTION_SENSE_CMD + ec->cmd_offset;  in cros_ec_sensorhub_probe()
143 		return -ENOMEM;  in cros_ec_sensorhub_probe()
145 	mutex_init(&data->cmd_lock);  in cros_ec_sensorhub_probe()
147 	data->dev = dev;  in cros_ec_sensorhub_probe()
148 	data->ec = ec;  in cros_ec_sensorhub_probe()
149 	data->msg = msg;  in cros_ec_sensorhub_probe()
150 	data->params = (struct ec_params_motion_sense *)msg->data;  in cros_ec_sensorhub_probe()
151 	data->resp = (struct ec_response_motion_sense *)msg->data;  in cros_ec_sensorhub_probe()
155 	/* Check whether this EC is a sensor hub. */  in cros_ec_sensorhub_probe()
156 	if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE)) {  in cros_ec_sensorhub_probe()
157 		sensor_num = cros_ec_get_sensor_count(ec);  in cros_ec_sensorhub_probe()
166 			return -EINVAL;  in cros_ec_sensorhub_probe()
168 		data->sensor_num = sensor_num;  in cros_ec_sensorhub_probe()
174 		if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO)) {  in cros_ec_sensorhub_probe()
186 		 * When the EC does not have a FIFO, the sensors will query  in cros_ec_sensorhub_probe()
189 		if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO)) {  in cros_ec_sensorhub_probe()
207 		data->sensor_num = 2;  in cros_ec_sensorhub_probe()
208 		for (i = 0; i < data->sensor_num; i++) {  in cros_ec_sensorhub_probe()
210 						"cros-ec-accel-legacy", i);  in cros_ec_sensorhub_probe()
222  * When the EC is suspending, we must stop sending interrupt,
224  * Tell the EC to stop sending non-interrupt event on the iio ring.
229 	struct cros_ec_dev *ec = sensorhub->ec;  in cros_ec_sensorhub_suspend()  local
231 	if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO))  in cros_ec_sensorhub_suspend()
239 	struct cros_ec_dev *ec = sensorhub->ec;  in cros_ec_sensorhub_resume()  local
241 	if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO))  in cros_ec_sensorhub_resume()
269 MODULE_DESCRIPTION("ChromeOS EC MEMS Sensor Hub Driver");