Loading...
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * HID Sensors Driver
4 * Copyright (c) 2014, Intel Corporation.
5 */
6#include <linux/device.h>
7#include <linux/platform_device.h>
8#include <linux/module.h>
9#include <linux/mod_devicetable.h>
10#include <linux/slab.h>
11#include <linux/hid-sensor-hub.h>
12#include <linux/iio/iio.h>
13#include <linux/iio/buffer.h>
14#include "../common/hid-sensors/hid-sensor-trigger.h"
15
16static const u32 prox_usage_ids[] = {
17 HID_USAGE_SENSOR_HUMAN_PRESENCE,
18 HID_USAGE_SENSOR_HUMAN_PROXIMITY,
19 HID_USAGE_SENSOR_HUMAN_ATTENTION,
20};
21
22#define MAX_CHANNELS ARRAY_SIZE(prox_usage_ids)
23
24enum {
25 HID_HUMAN_PRESENCE,
26 HID_HUMAN_PROXIMITY,
27 HID_HUMAN_ATTENTION,
28};
29
30struct prox_state {
31 struct hid_sensor_hub_callbacks callbacks;
32 struct hid_sensor_common common_attributes;
33 struct hid_sensor_hub_attribute_info prox_attr[MAX_CHANNELS];
34 struct iio_chan_spec channels[MAX_CHANNELS];
35 u32 channel2usage[MAX_CHANNELS];
36 u32 human_presence[MAX_CHANNELS];
37 int scale_pre_decml;
38 int scale_post_decml;
39 int scale_precision;
40 unsigned long scan_mask[2]; /* One entry plus one terminator. */
41 int num_channels;
42};
43
44static const u32 prox_sensitivity_addresses[] = {
45 HID_USAGE_SENSOR_HUMAN_PRESENCE,
46 HID_USAGE_SENSOR_DATA_PRESENCE,
47};
48
49#define PROX_CHANNEL(_is_proximity, _channel) \
50 {\
51 .type = _is_proximity ? IIO_PROXIMITY : IIO_ATTENTION,\
52 .info_mask_separate = \
53 (_is_proximity ? BIT(IIO_CHAN_INFO_RAW) :\
54 BIT(IIO_CHAN_INFO_PROCESSED)) |\
55 BIT(IIO_CHAN_INFO_OFFSET) |\
56 BIT(IIO_CHAN_INFO_SCALE) |\
57 BIT(IIO_CHAN_INFO_SAMP_FREQ) |\
58 BIT(IIO_CHAN_INFO_HYSTERESIS),\
59 .indexed = _is_proximity,\
60 .channel = _channel,\
61 }
62
63/* Channel definitions (same order as prox_usage_ids) */
64static const struct iio_chan_spec prox_channels[] = {
65 PROX_CHANNEL(true, HID_HUMAN_PRESENCE),
66 PROX_CHANNEL(true, HID_HUMAN_PROXIMITY),
67 PROX_CHANNEL(false, 0),
68};
69
70/* Adjust channel real bits based on report descriptor */
71static void prox_adjust_channel_bit_mask(struct iio_chan_spec *channels,
72 int channel, int size)
73{
74 channels[channel].scan_type.sign = 's';
75 /* Real storage bits will change based on the report desc. */
76 channels[channel].scan_type.realbits = size * 8;
77 /* Maximum size of a sample to capture is u32 */
78 channels[channel].scan_type.storagebits = sizeof(u32) * 8;
79}
80
81/* Channel read_raw handler */
82static int prox_read_raw(struct iio_dev *indio_dev,
83 struct iio_chan_spec const *chan,
84 int *val, int *val2,
85 long mask)
86{
87 struct prox_state *prox_state = iio_priv(indio_dev);
88 struct hid_sensor_hub_device *hsdev;
89 int report_id;
90 u32 address;
91 int ret_type;
92 s32 min;
93
94 *val = 0;
95 *val2 = 0;
96 switch (mask) {
97 case IIO_CHAN_INFO_RAW:
98 if (chan->scan_index >= prox_state->num_channels)
99 return -EINVAL;
100 address = prox_state->channel2usage[chan->scan_index];
101 report_id = prox_state->prox_attr[chan->scan_index].report_id;
102 hsdev = prox_state->common_attributes.hsdev;
103 min = prox_state->prox_attr[chan->scan_index].logical_minimum;
104 hid_sensor_power_state(&prox_state->common_attributes, true);
105 *val = sensor_hub_input_attr_get_raw_value(hsdev,
106 hsdev->usage,
107 address,
108 report_id,
109 SENSOR_HUB_SYNC,
110 min < 0);
111 if (prox_state->channel2usage[chan->scan_index] ==
112 HID_USAGE_SENSOR_HUMAN_ATTENTION)
113 *val *= 100;
114 hid_sensor_power_state(&prox_state->common_attributes, false);
115 ret_type = IIO_VAL_INT;
116 break;
117 case IIO_CHAN_INFO_SCALE:
118 *val = prox_state->scale_pre_decml;
119 *val2 = prox_state->scale_post_decml;
120 ret_type = prox_state->scale_precision;
121 break;
122 case IIO_CHAN_INFO_OFFSET:
123 *val = hid_sensor_convert_exponent(
124 prox_state->prox_attr[chan->scan_index].unit_expo);
125 ret_type = IIO_VAL_INT;
126 break;
127 case IIO_CHAN_INFO_SAMP_FREQ:
128 ret_type = hid_sensor_read_samp_freq_value(
129 &prox_state->common_attributes, val, val2);
130 break;
131 case IIO_CHAN_INFO_HYSTERESIS:
132 ret_type = hid_sensor_read_raw_hyst_value(
133 &prox_state->common_attributes, val, val2);
134 break;
135 default:
136 ret_type = -EINVAL;
137 break;
138 }
139
140 return ret_type;
141}
142
143/* Channel write_raw handler */
144static int prox_write_raw(struct iio_dev *indio_dev,
145 struct iio_chan_spec const *chan,
146 int val,
147 int val2,
148 long mask)
149{
150 struct prox_state *prox_state = iio_priv(indio_dev);
151 int ret = 0;
152
153 switch (mask) {
154 case IIO_CHAN_INFO_SAMP_FREQ:
155 ret = hid_sensor_write_samp_freq_value(
156 &prox_state->common_attributes, val, val2);
157 break;
158 case IIO_CHAN_INFO_HYSTERESIS:
159 ret = hid_sensor_write_raw_hyst_value(
160 &prox_state->common_attributes, val, val2);
161 break;
162 default:
163 ret = -EINVAL;
164 }
165
166 return ret;
167}
168
169static const struct iio_info prox_info = {
170 .read_raw = &prox_read_raw,
171 .write_raw = &prox_write_raw,
172};
173
174/* Callback handler to send event after all samples are received and captured */
175static int prox_proc_event(struct hid_sensor_hub_device *hsdev,
176 unsigned usage_id,
177 void *priv)
178{
179 struct iio_dev *indio_dev = platform_get_drvdata(priv);
180 struct prox_state *prox_state = iio_priv(indio_dev);
181
182 dev_dbg(&indio_dev->dev, "prox_proc_event\n");
183 if (atomic_read(&prox_state->common_attributes.data_ready)) {
184 dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
185 iio_push_to_buffers(indio_dev, &prox_state->human_presence);
186 }
187
188 return 0;
189}
190
191/* Capture samples in local storage */
192static int prox_capture_sample(struct hid_sensor_hub_device *hsdev,
193 unsigned usage_id,
194 size_t raw_len, char *raw_data,
195 void *priv)
196{
197 struct iio_dev *indio_dev = platform_get_drvdata(priv);
198 struct prox_state *prox_state = iio_priv(indio_dev);
199 int multiplier = 1;
200 int chan;
201
202 for (chan = 0; chan < prox_state->num_channels; chan++)
203 if (prox_state->channel2usage[chan] == usage_id)
204 break;
205 if (chan == prox_state->num_channels)
206 return -EINVAL;
207
208 if (usage_id == HID_USAGE_SENSOR_HUMAN_ATTENTION)
209 multiplier = 100;
210
211 switch (raw_len) {
212 case 1:
213 prox_state->human_presence[chan] = *(u8 *)raw_data * multiplier;
214 return 0;
215 case 4:
216 prox_state->human_presence[chan] = *(u32 *)raw_data * multiplier;
217 return 0;
218 }
219
220 return -EINVAL;
221}
222
223/* Parse report which is specific to an usage id*/
224static int prox_parse_report(struct platform_device *pdev,
225 struct hid_sensor_hub_device *hsdev,
226 struct prox_state *st)
227{
228 struct iio_chan_spec *channels = st->channels;
229 int index = 0;
230 int ret;
231 int i;
232
233 for (i = 0; i < MAX_CHANNELS; i++) {
234 u32 usage_id = prox_usage_ids[i];
235
236 ret = sensor_hub_input_get_attribute_info(hsdev,
237 HID_INPUT_REPORT,
238 hsdev->usage,
239 usage_id,
240 &st->prox_attr[index]);
241 if (ret < 0)
242 continue;
243 st->channel2usage[index] = usage_id;
244 st->scan_mask[0] |= BIT(index);
245 channels[index] = prox_channels[i];
246 channels[index].scan_index = index;
247 prox_adjust_channel_bit_mask(channels, index,
248 st->prox_attr[index].size);
249 dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr[index].index,
250 st->prox_attr[index].report_id);
251 index++;
252 }
253
254 if (!index)
255 return ret;
256
257 st->num_channels = index;
258
259 return 0;
260}
261
262/* Function to initialize the processing for usage id */
263static int hid_prox_probe(struct platform_device *pdev)
264{
265 struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
266 int ret = 0;
267 static const char *name = "prox";
268 struct iio_dev *indio_dev;
269 struct prox_state *prox_state;
270
271 indio_dev = devm_iio_device_alloc(&pdev->dev,
272 sizeof(struct prox_state));
273 if (!indio_dev)
274 return -ENOMEM;
275 platform_set_drvdata(pdev, indio_dev);
276
277 prox_state = iio_priv(indio_dev);
278 prox_state->common_attributes.hsdev = hsdev;
279 prox_state->common_attributes.pdev = pdev;
280
281 ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,
282 &prox_state->common_attributes,
283 prox_sensitivity_addresses,
284 ARRAY_SIZE(prox_sensitivity_addresses));
285 if (ret) {
286 dev_err(&pdev->dev, "failed to setup common attributes\n");
287 return ret;
288 }
289
290 ret = prox_parse_report(pdev, hsdev, prox_state);
291 if (ret) {
292 dev_err(&pdev->dev, "failed to setup attributes\n");
293 return ret;
294 }
295
296 indio_dev->num_channels = prox_state->num_channels;
297 indio_dev->channels = prox_state->channels;
298 indio_dev->available_scan_masks = prox_state->scan_mask;
299 indio_dev->info = &prox_info;
300 indio_dev->name = name;
301 indio_dev->modes = INDIO_DIRECT_MODE;
302
303 atomic_set(&prox_state->common_attributes.data_ready, 0);
304
305 ret = hid_sensor_setup_trigger(indio_dev, name,
306 &prox_state->common_attributes);
307 if (ret) {
308 dev_err(&pdev->dev, "trigger setup failed\n");
309 return ret;
310 }
311
312 ret = iio_device_register(indio_dev);
313 if (ret) {
314 dev_err(&pdev->dev, "device register failed\n");
315 goto error_remove_trigger;
316 }
317
318 prox_state->callbacks.send_event = prox_proc_event;
319 prox_state->callbacks.capture_sample = prox_capture_sample;
320 prox_state->callbacks.pdev = pdev;
321 ret = sensor_hub_register_callback(hsdev, hsdev->usage,
322 &prox_state->callbacks);
323 if (ret < 0) {
324 dev_err(&pdev->dev, "callback reg failed\n");
325 goto error_iio_unreg;
326 }
327
328 return ret;
329
330error_iio_unreg:
331 iio_device_unregister(indio_dev);
332error_remove_trigger:
333 hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
334 return ret;
335}
336
337/* Function to deinitialize the processing for usage id */
338static void hid_prox_remove(struct platform_device *pdev)
339{
340 struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
341 struct iio_dev *indio_dev = platform_get_drvdata(pdev);
342 struct prox_state *prox_state = iio_priv(indio_dev);
343
344 sensor_hub_remove_callback(hsdev, hsdev->usage);
345 iio_device_unregister(indio_dev);
346 hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
347}
348
349static const struct platform_device_id hid_prox_ids[] = {
350 {
351 /* Format: HID-SENSOR-usage_id_in_hex_lowercase */
352 .name = "HID-SENSOR-200011",
353 },
354 {
355 /* Format: HID-SENSOR-tag-usage_id_in_hex_lowercase */
356 .name = "HID-SENSOR-LISS-0226",
357 },
358 { /* sentinel */ }
359};
360MODULE_DEVICE_TABLE(platform, hid_prox_ids);
361
362static struct platform_driver hid_prox_platform_driver = {
363 .id_table = hid_prox_ids,
364 .driver = {
365 .name = KBUILD_MODNAME,
366 .pm = &hid_sensor_pm_ops,
367 },
368 .probe = hid_prox_probe,
369 .remove = hid_prox_remove,
370};
371module_platform_driver(hid_prox_platform_driver);
372
373MODULE_DESCRIPTION("HID Sensor Proximity");
374MODULE_AUTHOR("Archana Patni <archana.patni@intel.com>");
375MODULE_LICENSE("GPL");
376MODULE_IMPORT_NS("IIO_HID");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * HID Sensors Driver
4 * Copyright (c) 2014, Intel Corporation.
5 */
6#include <linux/device.h>
7#include <linux/platform_device.h>
8#include <linux/module.h>
9#include <linux/mod_devicetable.h>
10#include <linux/slab.h>
11#include <linux/hid-sensor-hub.h>
12#include <linux/iio/iio.h>
13#include <linux/iio/buffer.h>
14#include "../common/hid-sensors/hid-sensor-trigger.h"
15
16#define CHANNEL_SCAN_INDEX_PRESENCE 0
17
18struct prox_state {
19 struct hid_sensor_hub_callbacks callbacks;
20 struct hid_sensor_common common_attributes;
21 struct hid_sensor_hub_attribute_info prox_attr;
22 u32 human_presence;
23 int scale_pre_decml;
24 int scale_post_decml;
25 int scale_precision;
26};
27
28static const u32 prox_sensitivity_addresses[] = {
29 HID_USAGE_SENSOR_HUMAN_PRESENCE,
30 HID_USAGE_SENSOR_DATA_PRESENCE,
31};
32
33/* Channel definitions */
34static const struct iio_chan_spec prox_channels[] = {
35 {
36 .type = IIO_PROXIMITY,
37 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
38 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
39 BIT(IIO_CHAN_INFO_SCALE) |
40 BIT(IIO_CHAN_INFO_SAMP_FREQ) |
41 BIT(IIO_CHAN_INFO_HYSTERESIS),
42 .scan_index = CHANNEL_SCAN_INDEX_PRESENCE,
43 }
44};
45
46/* Adjust channel real bits based on report descriptor */
47static void prox_adjust_channel_bit_mask(struct iio_chan_spec *channels,
48 int channel, int size)
49{
50 channels[channel].scan_type.sign = 's';
51 /* Real storage bits will change based on the report desc. */
52 channels[channel].scan_type.realbits = size * 8;
53 /* Maximum size of a sample to capture is u32 */
54 channels[channel].scan_type.storagebits = sizeof(u32) * 8;
55}
56
57/* Channel read_raw handler */
58static int prox_read_raw(struct iio_dev *indio_dev,
59 struct iio_chan_spec const *chan,
60 int *val, int *val2,
61 long mask)
62{
63 struct prox_state *prox_state = iio_priv(indio_dev);
64 struct hid_sensor_hub_device *hsdev;
65 int report_id = -1;
66 u32 address;
67 int ret_type;
68 s32 min;
69
70 *val = 0;
71 *val2 = 0;
72 switch (mask) {
73 case IIO_CHAN_INFO_RAW:
74 switch (chan->scan_index) {
75 case CHANNEL_SCAN_INDEX_PRESENCE:
76 report_id = prox_state->prox_attr.report_id;
77 min = prox_state->prox_attr.logical_minimum;
78 address = HID_USAGE_SENSOR_HUMAN_PRESENCE;
79 hsdev = prox_state->common_attributes.hsdev;
80 break;
81 default:
82 report_id = -1;
83 break;
84 }
85 if (report_id >= 0) {
86 hid_sensor_power_state(&prox_state->common_attributes,
87 true);
88 *val = sensor_hub_input_attr_get_raw_value(
89 hsdev, hsdev->usage, address, report_id,
90 SENSOR_HUB_SYNC, min < 0);
91 hid_sensor_power_state(&prox_state->common_attributes,
92 false);
93 } else {
94 *val = 0;
95 return -EINVAL;
96 }
97 ret_type = IIO_VAL_INT;
98 break;
99 case IIO_CHAN_INFO_SCALE:
100 *val = prox_state->scale_pre_decml;
101 *val2 = prox_state->scale_post_decml;
102 ret_type = prox_state->scale_precision;
103 break;
104 case IIO_CHAN_INFO_OFFSET:
105 *val = hid_sensor_convert_exponent(
106 prox_state->prox_attr.unit_expo);
107 ret_type = IIO_VAL_INT;
108 break;
109 case IIO_CHAN_INFO_SAMP_FREQ:
110 ret_type = hid_sensor_read_samp_freq_value(
111 &prox_state->common_attributes, val, val2);
112 break;
113 case IIO_CHAN_INFO_HYSTERESIS:
114 ret_type = hid_sensor_read_raw_hyst_value(
115 &prox_state->common_attributes, val, val2);
116 break;
117 default:
118 ret_type = -EINVAL;
119 break;
120 }
121
122 return ret_type;
123}
124
125/* Channel write_raw handler */
126static int prox_write_raw(struct iio_dev *indio_dev,
127 struct iio_chan_spec const *chan,
128 int val,
129 int val2,
130 long mask)
131{
132 struct prox_state *prox_state = iio_priv(indio_dev);
133 int ret = 0;
134
135 switch (mask) {
136 case IIO_CHAN_INFO_SAMP_FREQ:
137 ret = hid_sensor_write_samp_freq_value(
138 &prox_state->common_attributes, val, val2);
139 break;
140 case IIO_CHAN_INFO_HYSTERESIS:
141 ret = hid_sensor_write_raw_hyst_value(
142 &prox_state->common_attributes, val, val2);
143 break;
144 default:
145 ret = -EINVAL;
146 }
147
148 return ret;
149}
150
151static const struct iio_info prox_info = {
152 .read_raw = &prox_read_raw,
153 .write_raw = &prox_write_raw,
154};
155
156/* Function to push data to buffer */
157static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
158 int len)
159{
160 dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
161 iio_push_to_buffers(indio_dev, data);
162}
163
164/* Callback handler to send event after all samples are received and captured */
165static int prox_proc_event(struct hid_sensor_hub_device *hsdev,
166 unsigned usage_id,
167 void *priv)
168{
169 struct iio_dev *indio_dev = platform_get_drvdata(priv);
170 struct prox_state *prox_state = iio_priv(indio_dev);
171
172 dev_dbg(&indio_dev->dev, "prox_proc_event\n");
173 if (atomic_read(&prox_state->common_attributes.data_ready))
174 hid_sensor_push_data(indio_dev,
175 &prox_state->human_presence,
176 sizeof(prox_state->human_presence));
177
178 return 0;
179}
180
181/* Capture samples in local storage */
182static int prox_capture_sample(struct hid_sensor_hub_device *hsdev,
183 unsigned usage_id,
184 size_t raw_len, char *raw_data,
185 void *priv)
186{
187 struct iio_dev *indio_dev = platform_get_drvdata(priv);
188 struct prox_state *prox_state = iio_priv(indio_dev);
189 int ret = -EINVAL;
190
191 switch (usage_id) {
192 case HID_USAGE_SENSOR_HUMAN_PRESENCE:
193 switch (raw_len) {
194 case 1:
195 prox_state->human_presence = *(u8 *)raw_data;
196 return 0;
197 case 4:
198 prox_state->human_presence = *(u32 *)raw_data;
199 return 0;
200 default:
201 break;
202 }
203 break;
204 }
205
206 return ret;
207}
208
209/* Parse report which is specific to an usage id*/
210static int prox_parse_report(struct platform_device *pdev,
211 struct hid_sensor_hub_device *hsdev,
212 struct iio_chan_spec *channels,
213 unsigned usage_id,
214 struct prox_state *st)
215{
216 int ret;
217
218 ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT,
219 usage_id,
220 HID_USAGE_SENSOR_HUMAN_PRESENCE,
221 &st->prox_attr);
222 if (ret < 0)
223 return ret;
224 prox_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_PRESENCE,
225 st->prox_attr.size);
226
227 dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index,
228 st->prox_attr.report_id);
229
230 return ret;
231}
232
233/* Function to initialize the processing for usage id */
234static int hid_prox_probe(struct platform_device *pdev)
235{
236 int ret = 0;
237 static const char *name = "prox";
238 struct iio_dev *indio_dev;
239 struct prox_state *prox_state;
240 struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
241
242 indio_dev = devm_iio_device_alloc(&pdev->dev,
243 sizeof(struct prox_state));
244 if (!indio_dev)
245 return -ENOMEM;
246 platform_set_drvdata(pdev, indio_dev);
247
248 prox_state = iio_priv(indio_dev);
249 prox_state->common_attributes.hsdev = hsdev;
250 prox_state->common_attributes.pdev = pdev;
251
252 ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,
253 &prox_state->common_attributes,
254 prox_sensitivity_addresses,
255 ARRAY_SIZE(prox_sensitivity_addresses));
256 if (ret) {
257 dev_err(&pdev->dev, "failed to setup common attributes\n");
258 return ret;
259 }
260
261 indio_dev->channels = devm_kmemdup(&pdev->dev, prox_channels,
262 sizeof(prox_channels), GFP_KERNEL);
263 if (!indio_dev->channels) {
264 dev_err(&pdev->dev, "failed to duplicate channels\n");
265 return -ENOMEM;
266 }
267
268 ret = prox_parse_report(pdev, hsdev,
269 (struct iio_chan_spec *)indio_dev->channels,
270 hsdev->usage, prox_state);
271 if (ret) {
272 dev_err(&pdev->dev, "failed to setup attributes\n");
273 return ret;
274 }
275
276 indio_dev->num_channels = ARRAY_SIZE(prox_channels);
277 indio_dev->info = &prox_info;
278 indio_dev->name = name;
279 indio_dev->modes = INDIO_DIRECT_MODE;
280
281 atomic_set(&prox_state->common_attributes.data_ready, 0);
282
283 ret = hid_sensor_setup_trigger(indio_dev, name,
284 &prox_state->common_attributes);
285 if (ret) {
286 dev_err(&pdev->dev, "trigger setup failed\n");
287 return ret;
288 }
289
290 ret = iio_device_register(indio_dev);
291 if (ret) {
292 dev_err(&pdev->dev, "device register failed\n");
293 goto error_remove_trigger;
294 }
295
296 prox_state->callbacks.send_event = prox_proc_event;
297 prox_state->callbacks.capture_sample = prox_capture_sample;
298 prox_state->callbacks.pdev = pdev;
299 ret = sensor_hub_register_callback(hsdev, hsdev->usage,
300 &prox_state->callbacks);
301 if (ret < 0) {
302 dev_err(&pdev->dev, "callback reg failed\n");
303 goto error_iio_unreg;
304 }
305
306 return ret;
307
308error_iio_unreg:
309 iio_device_unregister(indio_dev);
310error_remove_trigger:
311 hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
312 return ret;
313}
314
315/* Function to deinitialize the processing for usage id */
316static void hid_prox_remove(struct platform_device *pdev)
317{
318 struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
319 struct iio_dev *indio_dev = platform_get_drvdata(pdev);
320 struct prox_state *prox_state = iio_priv(indio_dev);
321
322 sensor_hub_remove_callback(hsdev, hsdev->usage);
323 iio_device_unregister(indio_dev);
324 hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
325}
326
327static const struct platform_device_id hid_prox_ids[] = {
328 {
329 /* Format: HID-SENSOR-usage_id_in_hex_lowercase */
330 .name = "HID-SENSOR-200011",
331 },
332 {
333 /* Format: HID-SENSOR-tag-usage_id_in_hex_lowercase */
334 .name = "HID-SENSOR-LISS-0226",
335 },
336 { /* sentinel */ }
337};
338MODULE_DEVICE_TABLE(platform, hid_prox_ids);
339
340static struct platform_driver hid_prox_platform_driver = {
341 .id_table = hid_prox_ids,
342 .driver = {
343 .name = KBUILD_MODNAME,
344 .pm = &hid_sensor_pm_ops,
345 },
346 .probe = hid_prox_probe,
347 .remove_new = hid_prox_remove,
348};
349module_platform_driver(hid_prox_platform_driver);
350
351MODULE_DESCRIPTION("HID Sensor Proximity");
352MODULE_AUTHOR("Archana Patni <archana.patni@intel.com>");
353MODULE_LICENSE("GPL");
354MODULE_IMPORT_NS(IIO_HID);