1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/hid-sensor-hub.h>
14 #include "../common/hid-sensors/hid-sensor-trigger.h"
65 	int report_id = -1;  in prox_read_raw()
74 		switch (chan->scan_index) {  in prox_read_raw()
76 			report_id = prox_state->prox_attr.report_id;  in prox_read_raw()
77 			min = prox_state->prox_attr.logical_minimum;  in prox_read_raw()
79 			hsdev = prox_state->common_attributes.hsdev;  in prox_read_raw()
82 			report_id = -1;  in prox_read_raw()
86 			hid_sensor_power_state(&prox_state->common_attributes,  in prox_read_raw()
89 				hsdev, hsdev->usage, address, report_id,  in prox_read_raw()
91 			hid_sensor_power_state(&prox_state->common_attributes,  in prox_read_raw()
95 			return -EINVAL;  in prox_read_raw()
100 		*val = prox_state->scale_pre_decml;  in prox_read_raw()
101 		*val2 = prox_state->scale_post_decml;  in prox_read_raw()
102 		ret_type = prox_state->scale_precision;  in prox_read_raw()
106 				prox_state->prox_attr.unit_expo);  in prox_read_raw()
111 				&prox_state->common_attributes, val, val2);  in prox_read_raw()
115 				&prox_state->common_attributes, val, val2);  in prox_read_raw()
118 		ret_type = -EINVAL;  in prox_read_raw()
138 				&prox_state->common_attributes, val, val2);  in prox_write_raw()
142 				&prox_state->common_attributes, val, val2);  in prox_write_raw()
145 		ret = -EINVAL;  in prox_write_raw()
160 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");  in hid_sensor_push_data()
164 /* Callback handler to send event after all samples are received and captured */
172 	dev_dbg(&indio_dev->dev, "prox_proc_event\n");  in prox_proc_event()
173 	if (atomic_read(&prox_state->common_attributes.data_ready))  in prox_proc_event()
175 				&prox_state->human_presence,  in prox_proc_event()
176 				sizeof(prox_state->human_presence));  in prox_proc_event()
189 	int ret = -EINVAL;  in prox_capture_sample()
195 			prox_state->human_presence = *(u8 *)raw_data;  in prox_capture_sample()
198 			prox_state->human_presence = *(u32 *)raw_data;  in prox_capture_sample()
221 			&st->prox_attr);  in prox_parse_report()
225 					st->prox_attr.size);  in prox_parse_report()
227 	dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index,  in prox_parse_report()
228 			st->prox_attr.report_id);  in prox_parse_report()
237 	static const char *name = "prox";  in hid_prox_probe()
240 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;  in hid_prox_probe()
242 	indio_dev = devm_iio_device_alloc(&pdev->dev,  in hid_prox_probe()
245 		return -ENOMEM;  in hid_prox_probe()
249 	prox_state->common_attributes.hsdev = hsdev;  in hid_prox_probe()
250 	prox_state->common_attributes.pdev = pdev;  in hid_prox_probe()
252 	ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,  in hid_prox_probe()
253 					&prox_state->common_attributes,  in hid_prox_probe()
257 		dev_err(&pdev->dev, "failed to setup common attributes\n");  in hid_prox_probe()
261 	indio_dev->channels = devm_kmemdup(&pdev->dev, prox_channels,  in hid_prox_probe()
263 	if (!indio_dev->channels) {  in hid_prox_probe()
264 		dev_err(&pdev->dev, "failed to duplicate channels\n");  in hid_prox_probe()
265 		return -ENOMEM;  in hid_prox_probe()
269 				(struct iio_chan_spec *)indio_dev->channels,  in hid_prox_probe()
270 				hsdev->usage, prox_state);  in hid_prox_probe()
272 		dev_err(&pdev->dev, "failed to setup attributes\n");  in hid_prox_probe()
276 	indio_dev->num_channels = ARRAY_SIZE(prox_channels);  in hid_prox_probe()
277 	indio_dev->info = &prox_info;  in hid_prox_probe()
278 	indio_dev->name = name;  in hid_prox_probe()
279 	indio_dev->modes = INDIO_DIRECT_MODE;  in hid_prox_probe()
281 	atomic_set(&prox_state->common_attributes.data_ready, 0);  in hid_prox_probe()
284 				&prox_state->common_attributes);  in hid_prox_probe()
286 		dev_err(&pdev->dev, "trigger setup failed\n");  in hid_prox_probe()
292 		dev_err(&pdev->dev, "device register failed\n");  in hid_prox_probe()
296 	prox_state->callbacks.send_event = prox_proc_event;  in hid_prox_probe()
297 	prox_state->callbacks.capture_sample = prox_capture_sample;  in hid_prox_probe()
298 	prox_state->callbacks.pdev = pdev;  in hid_prox_probe()
299 	ret = sensor_hub_register_callback(hsdev, hsdev->usage,  in hid_prox_probe()
300 					   &prox_state->callbacks);  in hid_prox_probe()
302 		dev_err(&pdev->dev, "callback reg failed\n");  in hid_prox_probe()
311 	hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);  in hid_prox_probe()
318 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;  in hid_prox_remove()
322 	sensor_hub_remove_callback(hsdev, hsdev->usage);  in hid_prox_remove()
324 	hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);  in hid_prox_remove()
331 		/* Format: HID-SENSOR-usage_id_in_hex_lowercase */
332 		.name = "HID-SENSOR-200011",
335 		/* Format: HID-SENSOR-tag-usage_id_in_hex_lowercase */
336 		.name = "HID-SENSOR-LISS-0226",