srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 1 | /* |
| 2 | * HID Sensors Driver |
| 3 | * Copyright (c) 2012, Intel Corporation. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | * |
| 18 | */ |
| 19 | #include <linux/device.h> |
| 20 | #include <linux/hid.h> |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 21 | #include <linux/module.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/mfd/core.h> |
| 24 | #include <linux/list.h> |
| 25 | #include <linux/hid-sensor-ids.h> |
| 26 | #include <linux/hid-sensor-hub.h> |
| 27 | #include "hid-ids.h" |
| 28 | |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 29 | #define HID_SENSOR_HUB_ENUM_QUIRK 0x01 |
| 30 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 31 | /** |
| 32 | * struct sensor_hub_pending - Synchronous read pending information |
| 33 | * @status: Pending status true/false. |
| 34 | * @ready: Completion synchronization data. |
| 35 | * @usage_id: Usage id for physical device, E.g. Gyro usage id. |
| 36 | * @attr_usage_id: Usage Id of a field, E.g. X-AXIS for a gyro. |
| 37 | * @raw_size: Response size for a read request. |
| 38 | * @raw_data: Place holder for received response. |
| 39 | */ |
| 40 | struct sensor_hub_pending { |
| 41 | bool status; |
| 42 | struct completion ready; |
| 43 | u32 usage_id; |
| 44 | u32 attr_usage_id; |
| 45 | int raw_size; |
| 46 | u8 *raw_data; |
| 47 | }; |
| 48 | |
| 49 | /** |
| 50 | * struct sensor_hub_data - Hold a instance data for a HID hub device |
| 51 | * @hsdev: Stored hid instance for current hub device. |
| 52 | * @mutex: Mutex to serialize synchronous request. |
| 53 | * @lock: Spin lock to protect pending request structure. |
| 54 | * @pending: Holds information of pending sync read request. |
| 55 | * @dyn_callback_list: Holds callback function |
| 56 | * @dyn_callback_lock: spin lock to protect callback list |
| 57 | * @hid_sensor_hub_client_devs: Stores all MFD cells for a hub instance. |
| 58 | * @hid_sensor_client_cnt: Number of MFD cells, (no of sensors attached). |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 59 | * @ref_cnt: Number of MFD clients have opened this device |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 60 | */ |
| 61 | struct sensor_hub_data { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 62 | struct mutex mutex; |
| 63 | spinlock_t lock; |
| 64 | struct sensor_hub_pending pending; |
| 65 | struct list_head dyn_callback_list; |
| 66 | spinlock_t dyn_callback_lock; |
| 67 | struct mfd_cell *hid_sensor_hub_client_devs; |
| 68 | int hid_sensor_client_cnt; |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 69 | unsigned long quirks; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 70 | int ref_cnt; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 71 | }; |
| 72 | |
| 73 | /** |
| 74 | * struct hid_sensor_hub_callbacks_list - Stores callback list |
| 75 | * @list: list head. |
| 76 | * @usage_id: usage id for a physical device. |
| 77 | * @usage_callback: Stores registered callback functions. |
| 78 | * @priv: Private data for a physical device. |
| 79 | */ |
| 80 | struct hid_sensor_hub_callbacks_list { |
| 81 | struct list_head list; |
| 82 | u32 usage_id; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 83 | struct hid_sensor_hub_device *hsdev; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 84 | struct hid_sensor_hub_callbacks *usage_callback; |
| 85 | void *priv; |
| 86 | }; |
| 87 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 88 | static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev, |
| 89 | int dir) |
| 90 | { |
| 91 | struct hid_report *report; |
| 92 | |
| 93 | list_for_each_entry(report, &hdev->report_enum[dir].report_list, list) { |
| 94 | if (report->id == id) |
| 95 | return report; |
| 96 | } |
| 97 | hid_warn(hdev, "No report with id 0x%x found\n", id); |
| 98 | |
| 99 | return NULL; |
| 100 | } |
| 101 | |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 102 | static int sensor_hub_get_physical_device_count(struct hid_device *hdev) |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 103 | { |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 104 | int i; |
| 105 | int count = 0; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 106 | |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 107 | for (i = 0; i < hdev->maxcollection; ++i) { |
| 108 | struct hid_collection *collection = &hdev->collection[i]; |
| 109 | if (collection->type == HID_COLLECTION_PHYSICAL) |
| 110 | ++count; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 111 | } |
| 112 | |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 113 | return count; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | static void sensor_hub_fill_attr_info( |
| 117 | struct hid_sensor_hub_attribute_info *info, |
Srinivas Pandruvada | 9f740ff | 2013-11-27 22:19:00 +0000 | [diff] [blame] | 118 | s32 index, s32 report_id, struct hid_field *field) |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 119 | { |
| 120 | info->index = index; |
| 121 | info->report_id = report_id; |
Srinivas Pandruvada | 9f740ff | 2013-11-27 22:19:00 +0000 | [diff] [blame] | 122 | info->units = field->unit; |
| 123 | info->unit_expo = field->unit_exponent; |
| 124 | info->size = (field->report_size * field->report_count)/8; |
| 125 | info->logical_minimum = field->logical_minimum; |
| 126 | info->logical_maximum = field->logical_maximum; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | static struct hid_sensor_hub_callbacks *sensor_hub_get_callback( |
| 130 | struct hid_device *hdev, |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 131 | u32 usage_id, |
| 132 | int collection_index, |
| 133 | struct hid_sensor_hub_device **hsdev, |
| 134 | void **priv) |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 135 | { |
| 136 | struct hid_sensor_hub_callbacks_list *callback; |
| 137 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
| 138 | |
| 139 | spin_lock(&pdata->dyn_callback_lock); |
| 140 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 141 | if (callback->usage_id == usage_id && |
| 142 | (collection_index >= |
| 143 | callback->hsdev->start_collection_index) && |
| 144 | (collection_index < |
| 145 | callback->hsdev->end_collection_index)) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 146 | *priv = callback->priv; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 147 | *hsdev = callback->hsdev; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 148 | spin_unlock(&pdata->dyn_callback_lock); |
| 149 | return callback->usage_callback; |
| 150 | } |
| 151 | spin_unlock(&pdata->dyn_callback_lock); |
| 152 | |
| 153 | return NULL; |
| 154 | } |
| 155 | |
| 156 | int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev, |
| 157 | u32 usage_id, |
| 158 | struct hid_sensor_hub_callbacks *usage_callback) |
| 159 | { |
| 160 | struct hid_sensor_hub_callbacks_list *callback; |
| 161 | struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev); |
| 162 | |
| 163 | spin_lock(&pdata->dyn_callback_lock); |
| 164 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 165 | if (callback->usage_id == usage_id && |
| 166 | callback->hsdev == hsdev) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 167 | spin_unlock(&pdata->dyn_callback_lock); |
| 168 | return -EINVAL; |
| 169 | } |
Dan Carpenter | 2b7c4b8 | 2012-09-14 06:53:23 +0000 | [diff] [blame] | 170 | callback = kzalloc(sizeof(*callback), GFP_ATOMIC); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 171 | if (!callback) { |
| 172 | spin_unlock(&pdata->dyn_callback_lock); |
| 173 | return -ENOMEM; |
| 174 | } |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 175 | callback->hsdev = hsdev; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 176 | callback->usage_callback = usage_callback; |
| 177 | callback->usage_id = usage_id; |
| 178 | callback->priv = NULL; |
| 179 | list_add_tail(&callback->list, &pdata->dyn_callback_list); |
| 180 | spin_unlock(&pdata->dyn_callback_lock); |
| 181 | |
| 182 | return 0; |
| 183 | } |
| 184 | EXPORT_SYMBOL_GPL(sensor_hub_register_callback); |
| 185 | |
| 186 | int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev, |
| 187 | u32 usage_id) |
| 188 | { |
| 189 | struct hid_sensor_hub_callbacks_list *callback; |
| 190 | struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev); |
| 191 | |
| 192 | spin_lock(&pdata->dyn_callback_lock); |
| 193 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 194 | if (callback->usage_id == usage_id && |
| 195 | callback->hsdev == hsdev) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 196 | list_del(&callback->list); |
| 197 | kfree(callback); |
| 198 | break; |
| 199 | } |
| 200 | spin_unlock(&pdata->dyn_callback_lock); |
| 201 | |
| 202 | return 0; |
| 203 | } |
| 204 | EXPORT_SYMBOL_GPL(sensor_hub_remove_callback); |
| 205 | |
| 206 | int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id, |
| 207 | u32 field_index, s32 value) |
| 208 | { |
| 209 | struct hid_report *report; |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 210 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 211 | int ret = 0; |
| 212 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 213 | mutex_lock(&data->mutex); |
| 214 | report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 215 | if (!report || (field_index >= report->maxfield)) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 216 | ret = -EINVAL; |
| 217 | goto done_proc; |
| 218 | } |
| 219 | hid_set_field(report->field[field_index], 0, value); |
Benjamin Tissoires | d8814272 | 2013-02-25 11:31:46 +0100 | [diff] [blame] | 220 | hid_hw_request(hsdev->hdev, report, HID_REQ_SET_REPORT); |
Benjamin Tissoires | b7966a4 | 2013-02-25 11:31:47 +0100 | [diff] [blame] | 221 | hid_hw_wait(hsdev->hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 222 | |
| 223 | done_proc: |
| 224 | mutex_unlock(&data->mutex); |
| 225 | |
| 226 | return ret; |
| 227 | } |
| 228 | EXPORT_SYMBOL_GPL(sensor_hub_set_feature); |
| 229 | |
| 230 | int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id, |
| 231 | u32 field_index, s32 *value) |
| 232 | { |
| 233 | struct hid_report *report; |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 234 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 235 | int ret = 0; |
| 236 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 237 | mutex_lock(&data->mutex); |
| 238 | report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); |
Jiri Kosina | 4e5a494 | 2013-09-06 11:59:53 +0200 | [diff] [blame] | 239 | if (!report || (field_index >= report->maxfield) || |
Kees Cook | 9e89102 | 2013-08-28 22:31:44 +0200 | [diff] [blame] | 240 | report->field[field_index]->report_count < 1) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 241 | ret = -EINVAL; |
| 242 | goto done_proc; |
| 243 | } |
Benjamin Tissoires | d8814272 | 2013-02-25 11:31:46 +0100 | [diff] [blame] | 244 | hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT); |
Benjamin Tissoires | b7966a4 | 2013-02-25 11:31:47 +0100 | [diff] [blame] | 245 | hid_hw_wait(hsdev->hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 246 | *value = report->field[field_index]->value[0]; |
| 247 | |
| 248 | done_proc: |
| 249 | mutex_unlock(&data->mutex); |
| 250 | |
| 251 | return ret; |
| 252 | } |
| 253 | EXPORT_SYMBOL_GPL(sensor_hub_get_feature); |
| 254 | |
| 255 | |
| 256 | int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev, |
| 257 | u32 usage_id, |
| 258 | u32 attr_usage_id, u32 report_id) |
| 259 | { |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 260 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 261 | unsigned long flags; |
| 262 | struct hid_report *report; |
| 263 | int ret_val = 0; |
| 264 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 265 | mutex_lock(&data->mutex); |
| 266 | memset(&data->pending, 0, sizeof(data->pending)); |
| 267 | init_completion(&data->pending.ready); |
| 268 | data->pending.usage_id = usage_id; |
| 269 | data->pending.attr_usage_id = attr_usage_id; |
| 270 | data->pending.raw_size = 0; |
| 271 | |
| 272 | spin_lock_irqsave(&data->lock, flags); |
| 273 | data->pending.status = true; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 274 | spin_unlock_irqrestore(&data->lock, flags); |
Srinivas Pandruvada | f74346a | 2014-03-24 16:25:04 -0700 | [diff] [blame] | 275 | report = sensor_hub_report(report_id, hsdev->hdev, HID_INPUT_REPORT); |
| 276 | if (!report) |
| 277 | goto err_free; |
| 278 | |
| 279 | hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 280 | wait_for_completion_interruptible_timeout(&data->pending.ready, HZ*5); |
| 281 | switch (data->pending.raw_size) { |
| 282 | case 1: |
| 283 | ret_val = *(u8 *)data->pending.raw_data; |
| 284 | break; |
| 285 | case 2: |
| 286 | ret_val = *(u16 *)data->pending.raw_data; |
| 287 | break; |
| 288 | case 4: |
| 289 | ret_val = *(u32 *)data->pending.raw_data; |
| 290 | break; |
| 291 | default: |
| 292 | ret_val = 0; |
| 293 | } |
| 294 | kfree(data->pending.raw_data); |
| 295 | |
| 296 | err_free: |
| 297 | data->pending.status = false; |
| 298 | mutex_unlock(&data->mutex); |
| 299 | |
| 300 | return ret_val; |
| 301 | } |
| 302 | EXPORT_SYMBOL_GPL(sensor_hub_input_attr_get_raw_value); |
| 303 | |
Srinivas Pandruvada | e02cee4 | 2014-01-23 18:50:21 -0800 | [diff] [blame] | 304 | int hid_sensor_get_usage_index(struct hid_sensor_hub_device *hsdev, |
| 305 | u32 report_id, int field_index, u32 usage_id) |
| 306 | { |
| 307 | struct hid_report *report; |
| 308 | struct hid_field *field; |
| 309 | int i; |
| 310 | |
| 311 | report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); |
| 312 | if (!report || (field_index >= report->maxfield)) |
| 313 | goto done_proc; |
| 314 | |
| 315 | field = report->field[field_index]; |
| 316 | for (i = 0; i < field->maxusage; ++i) { |
| 317 | if (field->usage[i].hid == usage_id) |
| 318 | return field->usage[i].usage_index; |
| 319 | } |
| 320 | |
| 321 | done_proc: |
| 322 | return -EINVAL; |
| 323 | } |
| 324 | EXPORT_SYMBOL_GPL(hid_sensor_get_usage_index); |
| 325 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 326 | int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev, |
| 327 | u8 type, |
| 328 | u32 usage_id, |
| 329 | u32 attr_usage_id, |
| 330 | struct hid_sensor_hub_attribute_info *info) |
| 331 | { |
| 332 | int ret = -1; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 333 | int i; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 334 | struct hid_report *report; |
| 335 | struct hid_field *field; |
| 336 | struct hid_report_enum *report_enum; |
| 337 | struct hid_device *hdev = hsdev->hdev; |
| 338 | |
| 339 | /* Initialize with defaults */ |
| 340 | info->usage_id = usage_id; |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 341 | info->attrib_id = attr_usage_id; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 342 | info->report_id = -1; |
| 343 | info->index = -1; |
| 344 | info->units = -1; |
| 345 | info->unit_expo = -1; |
| 346 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 347 | report_enum = &hdev->report_enum[type]; |
| 348 | list_for_each_entry(report, &report_enum->report_list, list) { |
| 349 | for (i = 0; i < report->maxfield; ++i) { |
| 350 | field = report->field[i]; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 351 | if (field->maxusage) { |
| 352 | if (field->physical == usage_id && |
| 353 | (field->logical == attr_usage_id || |
| 354 | field->usage[0].hid == |
| 355 | attr_usage_id) && |
| 356 | (field->usage[0].collection_index >= |
| 357 | hsdev->start_collection_index) && |
| 358 | (field->usage[0].collection_index < |
| 359 | hsdev->end_collection_index)) { |
| 360 | |
| 361 | sensor_hub_fill_attr_info(info, i, |
| 362 | report->id, |
| 363 | field); |
| 364 | ret = 0; |
| 365 | break; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 366 | } |
| 367 | } |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 368 | } |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 369 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 370 | } |
| 371 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 372 | return ret; |
| 373 | } |
| 374 | EXPORT_SYMBOL_GPL(sensor_hub_input_get_attribute_info); |
| 375 | |
| 376 | #ifdef CONFIG_PM |
| 377 | static int sensor_hub_suspend(struct hid_device *hdev, pm_message_t message) |
| 378 | { |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 379 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 380 | struct hid_sensor_hub_callbacks_list *callback; |
| 381 | |
| 382 | hid_dbg(hdev, " sensor_hub_suspend\n"); |
| 383 | spin_lock(&pdata->dyn_callback_lock); |
| 384 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) { |
| 385 | if (callback->usage_callback->suspend) |
| 386 | callback->usage_callback->suspend( |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 387 | callback->hsdev, callback->priv); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 388 | } |
| 389 | spin_unlock(&pdata->dyn_callback_lock); |
| 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | |
| 394 | static int sensor_hub_resume(struct hid_device *hdev) |
| 395 | { |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 396 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 397 | struct hid_sensor_hub_callbacks_list *callback; |
| 398 | |
| 399 | hid_dbg(hdev, " sensor_hub_resume\n"); |
| 400 | spin_lock(&pdata->dyn_callback_lock); |
| 401 | list_for_each_entry(callback, &pdata->dyn_callback_list, list) { |
| 402 | if (callback->usage_callback->resume) |
| 403 | callback->usage_callback->resume( |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 404 | callback->hsdev, callback->priv); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 405 | } |
| 406 | spin_unlock(&pdata->dyn_callback_lock); |
| 407 | |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | static int sensor_hub_reset_resume(struct hid_device *hdev) |
| 412 | { |
| 413 | return 0; |
| 414 | } |
| 415 | #endif |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 416 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 417 | /* |
| 418 | * Handle raw report as sent by device |
| 419 | */ |
| 420 | static int sensor_hub_raw_event(struct hid_device *hdev, |
| 421 | struct hid_report *report, u8 *raw_data, int size) |
| 422 | { |
| 423 | int i; |
| 424 | u8 *ptr; |
| 425 | int sz; |
| 426 | struct sensor_hub_data *pdata = hid_get_drvdata(hdev); |
| 427 | unsigned long flags; |
| 428 | struct hid_sensor_hub_callbacks *callback = NULL; |
| 429 | struct hid_collection *collection = NULL; |
| 430 | void *priv = NULL; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 431 | struct hid_sensor_hub_device *hsdev = NULL; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 432 | |
| 433 | hid_dbg(hdev, "sensor_hub_raw_event report id:0x%x size:%d type:%d\n", |
| 434 | report->id, size, report->type); |
| 435 | hid_dbg(hdev, "maxfield:%d\n", report->maxfield); |
| 436 | if (report->type != HID_INPUT_REPORT) |
| 437 | return 1; |
| 438 | |
| 439 | ptr = raw_data; |
Andy Shevchenko | 15261f6 | 2013-08-14 11:07:08 +0300 | [diff] [blame] | 440 | ptr++; /* Skip report id */ |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 441 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 442 | spin_lock_irqsave(&pdata->lock, flags); |
| 443 | |
| 444 | for (i = 0; i < report->maxfield; ++i) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 445 | hid_dbg(hdev, "%d collection_index:%x hid:%x sz:%x\n", |
| 446 | i, report->field[i]->usage->collection_index, |
| 447 | report->field[i]->usage->hid, |
Srinivas Pandruvada | d4b1bba | 2013-10-26 10:04:09 -0700 | [diff] [blame] | 448 | (report->field[i]->report_size * |
| 449 | report->field[i]->report_count)/8); |
| 450 | sz = (report->field[i]->report_size * |
| 451 | report->field[i]->report_count)/8; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 452 | if (pdata->pending.status && pdata->pending.attr_usage_id == |
| 453 | report->field[i]->usage->hid) { |
| 454 | hid_dbg(hdev, "data was pending ...\n"); |
Andy Shevchenko | 7b0692f | 2013-08-14 11:07:11 +0300 | [diff] [blame] | 455 | pdata->pending.raw_data = kmemdup(ptr, sz, GFP_ATOMIC); |
| 456 | if (pdata->pending.raw_data) |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 457 | pdata->pending.raw_size = sz; |
Andy Shevchenko | 7b0692f | 2013-08-14 11:07:11 +0300 | [diff] [blame] | 458 | else |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 459 | pdata->pending.raw_size = 0; |
| 460 | complete(&pdata->pending.ready); |
| 461 | } |
| 462 | collection = &hdev->collection[ |
| 463 | report->field[i]->usage->collection_index]; |
| 464 | hid_dbg(hdev, "collection->usage %x\n", |
| 465 | collection->usage); |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 466 | |
| 467 | callback = sensor_hub_get_callback(hdev, |
| 468 | report->field[i]->physical, |
| 469 | report->field[i]->usage[0].collection_index, |
| 470 | &hsdev, &priv); |
| 471 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 472 | if (callback && callback->capture_sample) { |
| 473 | if (report->field[i]->logical) |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 474 | callback->capture_sample(hsdev, |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 475 | report->field[i]->logical, sz, ptr, |
| 476 | callback->pdev); |
| 477 | else |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 478 | callback->capture_sample(hsdev, |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 479 | report->field[i]->usage->hid, sz, ptr, |
| 480 | callback->pdev); |
| 481 | } |
| 482 | ptr += sz; |
| 483 | } |
| 484 | if (callback && collection && callback->send_event) |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 485 | callback->send_event(hsdev, collection->usage, |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 486 | callback->pdev); |
| 487 | spin_unlock_irqrestore(&pdata->lock, flags); |
| 488 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 489 | return 1; |
| 490 | } |
| 491 | |
Srinivas Pandruvada | 1df3a40 | 2013-09-18 18:13:00 +0100 | [diff] [blame] | 492 | int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev) |
| 493 | { |
| 494 | int ret = 0; |
| 495 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
| 496 | |
| 497 | mutex_lock(&data->mutex); |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 498 | if (!data->ref_cnt) { |
Srinivas Pandruvada | 1df3a40 | 2013-09-18 18:13:00 +0100 | [diff] [blame] | 499 | ret = hid_hw_open(hsdev->hdev); |
| 500 | if (ret) { |
| 501 | hid_err(hsdev->hdev, "failed to open hid device\n"); |
| 502 | mutex_unlock(&data->mutex); |
| 503 | return ret; |
| 504 | } |
| 505 | } |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 506 | data->ref_cnt++; |
Srinivas Pandruvada | 1df3a40 | 2013-09-18 18:13:00 +0100 | [diff] [blame] | 507 | mutex_unlock(&data->mutex); |
| 508 | |
| 509 | return ret; |
| 510 | } |
| 511 | EXPORT_SYMBOL_GPL(sensor_hub_device_open); |
| 512 | |
| 513 | void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev) |
| 514 | { |
| 515 | struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev); |
| 516 | |
| 517 | mutex_lock(&data->mutex); |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 518 | data->ref_cnt--; |
| 519 | if (!data->ref_cnt) |
Srinivas Pandruvada | 1df3a40 | 2013-09-18 18:13:00 +0100 | [diff] [blame] | 520 | hid_hw_close(hsdev->hdev); |
| 521 | mutex_unlock(&data->mutex); |
| 522 | } |
| 523 | EXPORT_SYMBOL_GPL(sensor_hub_device_close); |
| 524 | |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 525 | static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
| 526 | unsigned int *rsize) |
| 527 | { |
| 528 | int index; |
| 529 | struct sensor_hub_data *sd = hid_get_drvdata(hdev); |
| 530 | unsigned char report_block[] = { |
| 531 | 0x0a, 0x16, 0x03, 0x15, 0x00, 0x25, 0x05}; |
| 532 | unsigned char power_block[] = { |
| 533 | 0x0a, 0x19, 0x03, 0x15, 0x00, 0x25, 0x05}; |
| 534 | |
| 535 | if (!(sd->quirks & HID_SENSOR_HUB_ENUM_QUIRK)) { |
| 536 | hid_dbg(hdev, "No Enum quirks\n"); |
| 537 | return rdesc; |
| 538 | } |
| 539 | |
| 540 | /* Looks for power and report state usage id and force to 1 */ |
| 541 | for (index = 0; index < *rsize; ++index) { |
| 542 | if (((*rsize - index) > sizeof(report_block)) && |
| 543 | !memcmp(&rdesc[index], report_block, |
| 544 | sizeof(report_block))) { |
| 545 | rdesc[index + 4] = 0x01; |
| 546 | index += sizeof(report_block); |
| 547 | } |
| 548 | if (((*rsize - index) > sizeof(power_block)) && |
| 549 | !memcmp(&rdesc[index], power_block, |
| 550 | sizeof(power_block))) { |
| 551 | rdesc[index + 4] = 0x01; |
| 552 | index += sizeof(power_block); |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | return rdesc; |
| 557 | } |
| 558 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 559 | static int sensor_hub_probe(struct hid_device *hdev, |
| 560 | const struct hid_device_id *id) |
| 561 | { |
| 562 | int ret; |
| 563 | struct sensor_hub_data *sd; |
| 564 | int i; |
| 565 | char *name; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 566 | int dev_cnt; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 567 | struct hid_sensor_hub_device *hsdev; |
| 568 | struct hid_sensor_hub_device *last_hsdev = NULL; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 569 | |
Andy Shevchenko | 905cc19 | 2013-08-14 11:07:10 +0300 | [diff] [blame] | 570 | sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 571 | if (!sd) { |
| 572 | hid_err(hdev, "cannot allocate Sensor data\n"); |
| 573 | return -ENOMEM; |
| 574 | } |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 575 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 576 | hid_set_drvdata(hdev, sd); |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 577 | sd->quirks = id->driver_data; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 578 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 579 | spin_lock_init(&sd->lock); |
| 580 | spin_lock_init(&sd->dyn_callback_lock); |
| 581 | mutex_init(&sd->mutex); |
| 582 | ret = hid_parse(hdev); |
| 583 | if (ret) { |
| 584 | hid_err(hdev, "parse failed\n"); |
Andy Shevchenko | 905cc19 | 2013-08-14 11:07:10 +0300 | [diff] [blame] | 585 | return ret; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 586 | } |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 587 | INIT_LIST_HEAD(&hdev->inputs); |
| 588 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 589 | ret = hid_hw_start(hdev, 0); |
| 590 | if (ret) { |
| 591 | hid_err(hdev, "hw start failed\n"); |
Andy Shevchenko | 905cc19 | 2013-08-14 11:07:10 +0300 | [diff] [blame] | 592 | return ret; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 593 | } |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 594 | INIT_LIST_HEAD(&sd->dyn_callback_list); |
| 595 | sd->hid_sensor_client_cnt = 0; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 596 | |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 597 | dev_cnt = sensor_hub_get_physical_device_count(hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 598 | if (dev_cnt > HID_MAX_PHY_DEVICES) { |
| 599 | hid_err(hdev, "Invalid Physical device count\n"); |
| 600 | ret = -EINVAL; |
Srinivas Pandruvada | 1df3a40 | 2013-09-18 18:13:00 +0100 | [diff] [blame] | 601 | goto err_stop_hw; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 602 | } |
| 603 | sd->hid_sensor_hub_client_devs = kzalloc(dev_cnt * |
| 604 | sizeof(struct mfd_cell), |
| 605 | GFP_KERNEL); |
| 606 | if (sd->hid_sensor_hub_client_devs == NULL) { |
Axel Lin | f2f13a6 | 2012-09-19 16:30:00 +0100 | [diff] [blame] | 607 | hid_err(hdev, "Failed to allocate memory for mfd cells\n"); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 608 | ret = -ENOMEM; |
Srinivas Pandruvada | 1df3a40 | 2013-09-18 18:13:00 +0100 | [diff] [blame] | 609 | goto err_stop_hw; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 610 | } |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 611 | |
| 612 | for (i = 0; i < hdev->maxcollection; ++i) { |
| 613 | struct hid_collection *collection = &hdev->collection[i]; |
| 614 | |
| 615 | if (collection->type == HID_COLLECTION_PHYSICAL) { |
| 616 | |
| 617 | hsdev = kzalloc(sizeof(*hsdev), GFP_KERNEL); |
| 618 | if (!hsdev) { |
| 619 | hid_err(hdev, "cannot allocate hid_sensor_hub_device\n"); |
| 620 | ret = -ENOMEM; |
| 621 | goto err_no_mem; |
| 622 | } |
| 623 | hsdev->hdev = hdev; |
| 624 | hsdev->vendor_id = hdev->vendor; |
| 625 | hsdev->product_id = hdev->product; |
| 626 | hsdev->start_collection_index = i; |
| 627 | if (last_hsdev) |
| 628 | last_hsdev->end_collection_index = i; |
| 629 | last_hsdev = hsdev; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 630 | name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x", |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 631 | collection->usage); |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 632 | if (name == NULL) { |
Axel Lin | f2f13a6 | 2012-09-19 16:30:00 +0100 | [diff] [blame] | 633 | hid_err(hdev, "Failed MFD device name\n"); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 634 | ret = -ENOMEM; |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 635 | goto err_no_mem; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 636 | } |
| 637 | sd->hid_sensor_hub_client_devs[ |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 638 | sd->hid_sensor_client_cnt].id = |
| 639 | PLATFORM_DEVID_AUTO; |
Srinivas Pandruvada | d81cae8 | 2013-12-05 16:34:25 -0800 | [diff] [blame] | 640 | sd->hid_sensor_hub_client_devs[ |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 641 | sd->hid_sensor_client_cnt].name = name; |
| 642 | sd->hid_sensor_hub_client_devs[ |
| 643 | sd->hid_sensor_client_cnt].platform_data = |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 644 | hsdev; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 645 | sd->hid_sensor_hub_client_devs[ |
| 646 | sd->hid_sensor_client_cnt].pdata_size = |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 647 | sizeof(*hsdev); |
| 648 | hid_dbg(hdev, "Adding %s:%d\n", name, |
| 649 | hsdev->start_collection_index); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 650 | sd->hid_sensor_client_cnt++; |
| 651 | } |
| 652 | } |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 653 | if (last_hsdev) |
| 654 | last_hsdev->end_collection_index = i; |
| 655 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 656 | ret = mfd_add_devices(&hdev->dev, 0, sd->hid_sensor_hub_client_devs, |
Stephen Rothwell | f45c69b | 2012-09-12 07:07:00 +0100 | [diff] [blame] | 657 | sd->hid_sensor_client_cnt, NULL, 0, NULL); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 658 | if (ret < 0) |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 659 | goto err_no_mem; |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 660 | |
| 661 | return ret; |
| 662 | |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 663 | err_no_mem: |
| 664 | for (i = 0; i < sd->hid_sensor_client_cnt; ++i) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 665 | kfree(sd->hid_sensor_hub_client_devs[i].name); |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 666 | kfree(sd->hid_sensor_hub_client_devs[i].platform_data); |
| 667 | } |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 668 | kfree(sd->hid_sensor_hub_client_devs); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 669 | err_stop_hw: |
| 670 | hid_hw_stop(hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 671 | |
| 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | static void sensor_hub_remove(struct hid_device *hdev) |
| 676 | { |
| 677 | struct sensor_hub_data *data = hid_get_drvdata(hdev); |
| 678 | unsigned long flags; |
| 679 | int i; |
| 680 | |
| 681 | hid_dbg(hdev, " hardware removed\n"); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 682 | hid_hw_close(hdev); |
Axel Lin | f2f13a6 | 2012-09-19 16:30:00 +0100 | [diff] [blame] | 683 | hid_hw_stop(hdev); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 684 | spin_lock_irqsave(&data->lock, flags); |
| 685 | if (data->pending.status) |
| 686 | complete(&data->pending.ready); |
| 687 | spin_unlock_irqrestore(&data->lock, flags); |
| 688 | mfd_remove_devices(&hdev->dev); |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 689 | for (i = 0; i < data->hid_sensor_client_cnt; ++i) { |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 690 | kfree(data->hid_sensor_hub_client_devs[i].name); |
Srinivas Pandruvada | ca2ed12 | 2014-01-31 12:04:10 -0800 | [diff] [blame] | 691 | kfree(data->hid_sensor_hub_client_devs[i].platform_data); |
| 692 | } |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 693 | kfree(data->hid_sensor_hub_client_devs); |
| 694 | hid_set_drvdata(hdev, NULL); |
| 695 | mutex_destroy(&data->mutex); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 696 | } |
| 697 | |
| 698 | static const struct hid_device_id sensor_hub_devices[] = { |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 699 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_INTEL_0, |
Stephen Chandler Paul | 30f5887 | 2014-04-03 16:27:55 -0400 | [diff] [blame] | 700 | USB_DEVICE_ID_INTEL_HID_SENSOR_0), |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 701 | .driver_data = HID_SENSOR_HUB_ENUM_QUIRK}, |
| 702 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_INTEL_1, |
Stephen Chandler Paul | 30f5887 | 2014-04-03 16:27:55 -0400 | [diff] [blame] | 703 | USB_DEVICE_ID_INTEL_HID_SENSOR_0), |
| 704 | .driver_data = HID_SENSOR_HUB_ENUM_QUIRK}, |
| 705 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_INTEL_1, |
| 706 | USB_DEVICE_ID_INTEL_HID_SENSOR_1), |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 707 | .driver_data = HID_SENSOR_HUB_ENUM_QUIRK}, |
Archana Patni | 218eb9e | 2014-02-03 12:44:16 +0530 | [diff] [blame] | 708 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_STM_0, |
| 709 | USB_DEVICE_ID_STM_HID_SENSOR), |
| 710 | .driver_data = HID_SENSOR_HUB_ENUM_QUIRK}, |
Mika Westerberg | 0d1e4b0 | 2013-02-11 12:31:19 +0200 | [diff] [blame] | 711 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID, |
| 712 | HID_ANY_ID) }, |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 713 | { } |
| 714 | }; |
| 715 | MODULE_DEVICE_TABLE(hid, sensor_hub_devices); |
| 716 | |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 717 | static struct hid_driver sensor_hub_driver = { |
| 718 | .name = "hid-sensor-hub", |
| 719 | .id_table = sensor_hub_devices, |
| 720 | .probe = sensor_hub_probe, |
| 721 | .remove = sensor_hub_remove, |
| 722 | .raw_event = sensor_hub_raw_event, |
Srinivas Pandruvada | 875e36f | 2014-01-14 09:30:20 -0800 | [diff] [blame] | 723 | .report_fixup = sensor_hub_report_fixup, |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 724 | #ifdef CONFIG_PM |
| 725 | .suspend = sensor_hub_suspend, |
Andy Shevchenko | 5902fde | 2013-08-14 11:07:09 +0300 | [diff] [blame] | 726 | .resume = sensor_hub_resume, |
| 727 | .reset_resume = sensor_hub_reset_resume, |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 728 | #endif |
| 729 | }; |
H Hartley Sweeten | f425458 | 2012-12-17 15:28:26 -0700 | [diff] [blame] | 730 | module_hid_driver(sensor_hub_driver); |
srinivas pandruvada | 401ca24 | 2012-09-05 13:56:00 +0100 | [diff] [blame] | 731 | |
| 732 | MODULE_DESCRIPTION("HID Sensor Hub driver"); |
| 733 | MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>"); |
| 734 | MODULE_LICENSE("GPL"); |