Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013 Andrew Duggan <aduggan@synaptics.com> |
| 3 | * Copyright (c) 2013 Synaptics Incorporated |
| 4 | * Copyright (c) 2014 Benjamin Tissoires <benjamin.tissoires@gmail.com> |
| 5 | * Copyright (c) 2014 Red Hat, Inc |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the Free |
| 9 | * Software Foundation; either version 2 of the License, or (at your option) |
| 10 | * any later version. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/hid.h> |
| 15 | #include <linux/input.h> |
| 16 | #include <linux/input/mt.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/pm.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/wait.h> |
| 21 | #include <linux/sched.h> |
| 22 | #include "hid-ids.h" |
| 23 | |
| 24 | #define RMI_MOUSE_REPORT_ID 0x01 /* Mouse emulation Report */ |
| 25 | #define RMI_WRITE_REPORT_ID 0x09 /* Output Report */ |
| 26 | #define RMI_READ_ADDR_REPORT_ID 0x0a /* Output Report */ |
| 27 | #define RMI_READ_DATA_REPORT_ID 0x0b /* Input Report */ |
| 28 | #define RMI_ATTN_REPORT_ID 0x0c /* Input Report */ |
| 29 | #define RMI_SET_RMI_MODE_REPORT_ID 0x0f /* Feature Report */ |
| 30 | |
| 31 | /* flags */ |
Dan Carpenter | af43c40 | 2015-05-14 11:32:56 +0300 | [diff] [blame] | 32 | #define RMI_READ_REQUEST_PENDING 0 |
| 33 | #define RMI_READ_DATA_PENDING 1 |
| 34 | #define RMI_STARTED 2 |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 35 | |
Andrew Duggan | 0925636 | 2015-07-06 16:48:31 -0700 | [diff] [blame^] | 36 | #define RMI_SLEEP_NORMAL 0x0 |
| 37 | #define RMI_SLEEP_DEEP_SLEEP 0x1 |
| 38 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 39 | /* device flags */ |
| 40 | #define RMI_DEVICE BIT(0) |
Andrew Duggan | 79364d8 | 2015-01-08 14:51:34 -0800 | [diff] [blame] | 41 | #define RMI_DEVICE_HAS_PHYS_BUTTONS BIT(1) |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 42 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 43 | enum rmi_mode_type { |
| 44 | RMI_MODE_OFF = 0, |
| 45 | RMI_MODE_ATTN_REPORTS = 1, |
| 46 | RMI_MODE_NO_PACKED_ATTN_REPORTS = 2, |
| 47 | }; |
| 48 | |
| 49 | struct rmi_function { |
| 50 | unsigned page; /* page of the function */ |
| 51 | u16 query_base_addr; /* base address for queries */ |
| 52 | u16 command_base_addr; /* base address for commands */ |
| 53 | u16 control_base_addr; /* base address for controls */ |
| 54 | u16 data_base_addr; /* base address for datas */ |
| 55 | unsigned int interrupt_base; /* cross-function interrupt number |
| 56 | * (uniq in the device)*/ |
| 57 | unsigned int interrupt_count; /* number of interrupts */ |
| 58 | unsigned int report_size; /* size of a report */ |
| 59 | unsigned long irq_mask; /* mask of the interrupts |
| 60 | * (to be applied against ATTN IRQ) */ |
| 61 | }; |
| 62 | |
| 63 | /** |
| 64 | * struct rmi_data - stores information for hid communication |
| 65 | * |
| 66 | * @page_mutex: Locks current page to avoid changing pages in unexpected ways. |
| 67 | * @page: Keeps track of the current virtual page |
| 68 | * |
| 69 | * @wait: Used for waiting for read data |
| 70 | * |
| 71 | * @writeReport: output buffer when writing RMI registers |
| 72 | * @readReport: input buffer when reading RMI registers |
| 73 | * |
| 74 | * @input_report_size: size of an input report (advertised by HID) |
| 75 | * @output_report_size: size of an output report (advertised by HID) |
| 76 | * |
| 77 | * @flags: flags for the current device (started, reading, etc...) |
| 78 | * |
| 79 | * @f11: placeholder of internal RMI function F11 description |
| 80 | * @f30: placeholder of internal RMI function F30 description |
| 81 | * |
| 82 | * @max_fingers: maximum finger count reported by the device |
| 83 | * @max_x: maximum x value reported by the device |
| 84 | * @max_y: maximum y value reported by the device |
| 85 | * |
| 86 | * @gpio_led_count: count of GPIOs + LEDs reported by F30 |
| 87 | * @button_count: actual physical buttons count |
| 88 | * @button_mask: button mask used to decode GPIO ATTN reports |
| 89 | * @button_state_mask: pull state of the buttons |
| 90 | * |
| 91 | * @input: pointer to the kernel input device |
| 92 | * |
| 93 | * @reset_work: worker which will be called in case of a mouse report |
| 94 | * @hdev: pointer to the struct hid_device |
| 95 | */ |
| 96 | struct rmi_data { |
| 97 | struct mutex page_mutex; |
| 98 | int page; |
| 99 | |
| 100 | wait_queue_head_t wait; |
| 101 | |
| 102 | u8 *writeReport; |
| 103 | u8 *readReport; |
| 104 | |
| 105 | int input_report_size; |
| 106 | int output_report_size; |
| 107 | |
| 108 | unsigned long flags; |
| 109 | |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 110 | struct rmi_function f01; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 111 | struct rmi_function f11; |
| 112 | struct rmi_function f30; |
| 113 | |
| 114 | unsigned int max_fingers; |
| 115 | unsigned int max_x; |
| 116 | unsigned int max_y; |
| 117 | unsigned int x_size_mm; |
| 118 | unsigned int y_size_mm; |
| 119 | |
| 120 | unsigned int gpio_led_count; |
| 121 | unsigned int button_count; |
| 122 | unsigned long button_mask; |
| 123 | unsigned long button_state_mask; |
| 124 | |
| 125 | struct input_dev *input; |
| 126 | |
| 127 | struct work_struct reset_work; |
| 128 | struct hid_device *hdev; |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 129 | |
| 130 | unsigned long device_flags; |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 131 | unsigned long firmware_id; |
Andrew Duggan | 0925636 | 2015-07-06 16:48:31 -0700 | [diff] [blame^] | 132 | |
| 133 | u8 f01_ctrl0; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 134 | }; |
| 135 | |
| 136 | #define RMI_PAGE(addr) (((addr) >> 8) & 0xff) |
| 137 | |
| 138 | static int rmi_write_report(struct hid_device *hdev, u8 *report, int len); |
| 139 | |
| 140 | /** |
| 141 | * rmi_set_page - Set RMI page |
| 142 | * @hdev: The pointer to the hid_device struct |
| 143 | * @page: The new page address. |
| 144 | * |
| 145 | * RMI devices have 16-bit addressing, but some of the physical |
| 146 | * implementations (like SMBus) only have 8-bit addressing. So RMI implements |
| 147 | * a page address at 0xff of every page so we can reliable page addresses |
| 148 | * every 256 registers. |
| 149 | * |
| 150 | * The page_mutex lock must be held when this function is entered. |
| 151 | * |
| 152 | * Returns zero on success, non-zero on failure. |
| 153 | */ |
| 154 | static int rmi_set_page(struct hid_device *hdev, u8 page) |
| 155 | { |
| 156 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 157 | int retval; |
| 158 | |
| 159 | data->writeReport[0] = RMI_WRITE_REPORT_ID; |
| 160 | data->writeReport[1] = 1; |
| 161 | data->writeReport[2] = 0xFF; |
| 162 | data->writeReport[4] = page; |
| 163 | |
| 164 | retval = rmi_write_report(hdev, data->writeReport, |
| 165 | data->output_report_size); |
| 166 | if (retval != data->output_report_size) { |
| 167 | dev_err(&hdev->dev, |
| 168 | "%s: set page failed: %d.", __func__, retval); |
| 169 | return retval; |
| 170 | } |
| 171 | |
| 172 | data->page = page; |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | static int rmi_set_mode(struct hid_device *hdev, u8 mode) |
| 177 | { |
| 178 | int ret; |
| 179 | u8 txbuf[2] = {RMI_SET_RMI_MODE_REPORT_ID, mode}; |
| 180 | |
| 181 | ret = hid_hw_raw_request(hdev, RMI_SET_RMI_MODE_REPORT_ID, txbuf, |
| 182 | sizeof(txbuf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
| 183 | if (ret < 0) { |
| 184 | dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode, |
| 185 | ret); |
| 186 | return ret; |
| 187 | } |
| 188 | |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | static int rmi_write_report(struct hid_device *hdev, u8 *report, int len) |
| 193 | { |
| 194 | int ret; |
| 195 | |
| 196 | ret = hid_hw_output_report(hdev, (void *)report, len); |
| 197 | if (ret < 0) { |
| 198 | dev_err(&hdev->dev, "failed to write hid report (%d)\n", ret); |
| 199 | return ret; |
| 200 | } |
| 201 | |
| 202 | return ret; |
| 203 | } |
| 204 | |
| 205 | static int rmi_read_block(struct hid_device *hdev, u16 addr, void *buf, |
| 206 | const int len) |
| 207 | { |
| 208 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 209 | int ret; |
| 210 | int bytes_read; |
| 211 | int bytes_needed; |
| 212 | int retries; |
| 213 | int read_input_count; |
| 214 | |
| 215 | mutex_lock(&data->page_mutex); |
| 216 | |
| 217 | if (RMI_PAGE(addr) != data->page) { |
| 218 | ret = rmi_set_page(hdev, RMI_PAGE(addr)); |
| 219 | if (ret < 0) |
| 220 | goto exit; |
| 221 | } |
| 222 | |
| 223 | for (retries = 5; retries > 0; retries--) { |
| 224 | data->writeReport[0] = RMI_READ_ADDR_REPORT_ID; |
| 225 | data->writeReport[1] = 0; /* old 1 byte read count */ |
| 226 | data->writeReport[2] = addr & 0xFF; |
| 227 | data->writeReport[3] = (addr >> 8) & 0xFF; |
| 228 | data->writeReport[4] = len & 0xFF; |
| 229 | data->writeReport[5] = (len >> 8) & 0xFF; |
| 230 | |
| 231 | set_bit(RMI_READ_REQUEST_PENDING, &data->flags); |
| 232 | |
| 233 | ret = rmi_write_report(hdev, data->writeReport, |
| 234 | data->output_report_size); |
| 235 | if (ret != data->output_report_size) { |
| 236 | clear_bit(RMI_READ_REQUEST_PENDING, &data->flags); |
| 237 | dev_err(&hdev->dev, |
| 238 | "failed to write request output report (%d)\n", |
| 239 | ret); |
| 240 | goto exit; |
| 241 | } |
| 242 | |
| 243 | bytes_read = 0; |
| 244 | bytes_needed = len; |
| 245 | while (bytes_read < len) { |
| 246 | if (!wait_event_timeout(data->wait, |
| 247 | test_bit(RMI_READ_DATA_PENDING, &data->flags), |
| 248 | msecs_to_jiffies(1000))) { |
| 249 | hid_warn(hdev, "%s: timeout elapsed\n", |
| 250 | __func__); |
| 251 | ret = -EAGAIN; |
| 252 | break; |
| 253 | } |
| 254 | |
| 255 | read_input_count = data->readReport[1]; |
| 256 | memcpy(buf + bytes_read, &data->readReport[2], |
| 257 | read_input_count < bytes_needed ? |
| 258 | read_input_count : bytes_needed); |
| 259 | |
| 260 | bytes_read += read_input_count; |
| 261 | bytes_needed -= read_input_count; |
| 262 | clear_bit(RMI_READ_DATA_PENDING, &data->flags); |
| 263 | } |
| 264 | |
| 265 | if (ret >= 0) { |
| 266 | ret = 0; |
| 267 | break; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | exit: |
| 272 | clear_bit(RMI_READ_REQUEST_PENDING, &data->flags); |
| 273 | mutex_unlock(&data->page_mutex); |
| 274 | return ret; |
| 275 | } |
| 276 | |
| 277 | static inline int rmi_read(struct hid_device *hdev, u16 addr, void *buf) |
| 278 | { |
| 279 | return rmi_read_block(hdev, addr, buf, 1); |
| 280 | } |
| 281 | |
Andrew Duggan | dd8df28 | 2015-02-24 17:36:48 -0800 | [diff] [blame] | 282 | static int rmi_write_block(struct hid_device *hdev, u16 addr, void *buf, |
| 283 | const int len) |
| 284 | { |
| 285 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 286 | int ret; |
| 287 | |
| 288 | mutex_lock(&data->page_mutex); |
| 289 | |
| 290 | if (RMI_PAGE(addr) != data->page) { |
| 291 | ret = rmi_set_page(hdev, RMI_PAGE(addr)); |
| 292 | if (ret < 0) |
| 293 | goto exit; |
| 294 | } |
| 295 | |
| 296 | data->writeReport[0] = RMI_WRITE_REPORT_ID; |
| 297 | data->writeReport[1] = len; |
| 298 | data->writeReport[2] = addr & 0xFF; |
| 299 | data->writeReport[3] = (addr >> 8) & 0xFF; |
| 300 | memcpy(&data->writeReport[4], buf, len); |
| 301 | |
| 302 | ret = rmi_write_report(hdev, data->writeReport, |
| 303 | data->output_report_size); |
| 304 | if (ret < 0) { |
| 305 | dev_err(&hdev->dev, |
| 306 | "failed to write request output report (%d)\n", |
| 307 | ret); |
| 308 | goto exit; |
| 309 | } |
| 310 | ret = 0; |
| 311 | |
| 312 | exit: |
| 313 | mutex_unlock(&data->page_mutex); |
| 314 | return ret; |
| 315 | } |
| 316 | |
| 317 | static inline int rmi_write(struct hid_device *hdev, u16 addr, void *buf) |
| 318 | { |
| 319 | return rmi_write_block(hdev, addr, buf, 1); |
| 320 | } |
| 321 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 322 | static void rmi_f11_process_touch(struct rmi_data *hdata, int slot, |
| 323 | u8 finger_state, u8 *touch_data) |
| 324 | { |
| 325 | int x, y, wx, wy; |
| 326 | int wide, major, minor; |
| 327 | int z; |
| 328 | |
| 329 | input_mt_slot(hdata->input, slot); |
| 330 | input_mt_report_slot_state(hdata->input, MT_TOOL_FINGER, |
| 331 | finger_state == 0x01); |
| 332 | if (finger_state == 0x01) { |
Andrew Duggan | 876e7a8 | 2014-05-15 13:52:29 -0700 | [diff] [blame] | 333 | x = (touch_data[0] << 4) | (touch_data[2] & 0x0F); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 334 | y = (touch_data[1] << 4) | (touch_data[2] >> 4); |
Andrew Duggan | 876e7a8 | 2014-05-15 13:52:29 -0700 | [diff] [blame] | 335 | wx = touch_data[3] & 0x0F; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 336 | wy = touch_data[3] >> 4; |
| 337 | wide = (wx > wy); |
| 338 | major = max(wx, wy); |
| 339 | minor = min(wx, wy); |
| 340 | z = touch_data[4]; |
| 341 | |
| 342 | /* y is inverted */ |
| 343 | y = hdata->max_y - y; |
| 344 | |
| 345 | input_event(hdata->input, EV_ABS, ABS_MT_POSITION_X, x); |
| 346 | input_event(hdata->input, EV_ABS, ABS_MT_POSITION_Y, y); |
| 347 | input_event(hdata->input, EV_ABS, ABS_MT_ORIENTATION, wide); |
| 348 | input_event(hdata->input, EV_ABS, ABS_MT_PRESSURE, z); |
| 349 | input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); |
| 350 | input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | static void rmi_reset_work(struct work_struct *work) |
| 355 | { |
| 356 | struct rmi_data *hdata = container_of(work, struct rmi_data, |
| 357 | reset_work); |
| 358 | |
| 359 | /* switch the device to RMI if we receive a generic mouse report */ |
| 360 | rmi_set_mode(hdata->hdev, RMI_MODE_ATTN_REPORTS); |
| 361 | } |
| 362 | |
| 363 | static inline int rmi_schedule_reset(struct hid_device *hdev) |
| 364 | { |
| 365 | struct rmi_data *hdata = hid_get_drvdata(hdev); |
| 366 | return schedule_work(&hdata->reset_work); |
| 367 | } |
| 368 | |
| 369 | static int rmi_f11_input_event(struct hid_device *hdev, u8 irq, u8 *data, |
| 370 | int size) |
| 371 | { |
| 372 | struct rmi_data *hdata = hid_get_drvdata(hdev); |
| 373 | int offset; |
| 374 | int i; |
| 375 | |
Benjamin Tissoires | 5b65c2a | 2014-09-10 18:02:37 -0700 | [diff] [blame] | 376 | if (!(irq & hdata->f11.irq_mask) || size <= 0) |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 377 | return 0; |
| 378 | |
| 379 | offset = (hdata->max_fingers >> 2) + 1; |
| 380 | for (i = 0; i < hdata->max_fingers; i++) { |
| 381 | int fs_byte_position = i >> 2; |
| 382 | int fs_bit_position = (i & 0x3) << 1; |
| 383 | int finger_state = (data[fs_byte_position] >> fs_bit_position) & |
| 384 | 0x03; |
Benjamin Tissoires | 5b65c2a | 2014-09-10 18:02:37 -0700 | [diff] [blame] | 385 | int position = offset + 5 * i; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 386 | |
Benjamin Tissoires | 5b65c2a | 2014-09-10 18:02:37 -0700 | [diff] [blame] | 387 | if (position + 5 > size) { |
| 388 | /* partial report, go on with what we received */ |
| 389 | printk_once(KERN_WARNING |
| 390 | "%s %s: Detected incomplete finger report. Finger reports may occasionally get dropped on this platform.\n", |
| 391 | dev_driver_string(&hdev->dev), |
| 392 | dev_name(&hdev->dev)); |
| 393 | hid_dbg(hdev, "Incomplete finger report\n"); |
| 394 | break; |
| 395 | } |
| 396 | |
| 397 | rmi_f11_process_touch(hdata, i, finger_state, &data[position]); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 398 | } |
| 399 | input_mt_sync_frame(hdata->input); |
| 400 | input_sync(hdata->input); |
| 401 | return hdata->f11.report_size; |
| 402 | } |
| 403 | |
| 404 | static int rmi_f30_input_event(struct hid_device *hdev, u8 irq, u8 *data, |
| 405 | int size) |
| 406 | { |
| 407 | struct rmi_data *hdata = hid_get_drvdata(hdev); |
| 408 | int i; |
| 409 | int button = 0; |
| 410 | bool value; |
| 411 | |
| 412 | if (!(irq & hdata->f30.irq_mask)) |
| 413 | return 0; |
| 414 | |
Benjamin Tissoires | 5b65c2a | 2014-09-10 18:02:37 -0700 | [diff] [blame] | 415 | if (size < (int)hdata->f30.report_size) { |
| 416 | hid_warn(hdev, "Click Button pressed, but the click data is missing\n"); |
| 417 | return 0; |
| 418 | } |
| 419 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 420 | for (i = 0; i < hdata->gpio_led_count; i++) { |
| 421 | if (test_bit(i, &hdata->button_mask)) { |
| 422 | value = (data[i / 8] >> (i & 0x07)) & BIT(0); |
| 423 | if (test_bit(i, &hdata->button_state_mask)) |
| 424 | value = !value; |
| 425 | input_event(hdata->input, EV_KEY, BTN_LEFT + button++, |
| 426 | value); |
| 427 | } |
| 428 | } |
| 429 | return hdata->f30.report_size; |
| 430 | } |
| 431 | |
| 432 | static int rmi_input_event(struct hid_device *hdev, u8 *data, int size) |
| 433 | { |
| 434 | struct rmi_data *hdata = hid_get_drvdata(hdev); |
| 435 | unsigned long irq_mask = 0; |
| 436 | unsigned index = 2; |
| 437 | |
| 438 | if (!(test_bit(RMI_STARTED, &hdata->flags))) |
| 439 | return 0; |
| 440 | |
| 441 | irq_mask |= hdata->f11.irq_mask; |
| 442 | irq_mask |= hdata->f30.irq_mask; |
| 443 | |
| 444 | if (data[1] & ~irq_mask) |
Andrew Duggan | 01a5f8a | 2014-07-11 14:35:51 -0700 | [diff] [blame] | 445 | hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n", |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 446 | data[1] & ~irq_mask, __FILE__, __LINE__); |
| 447 | |
| 448 | if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) { |
| 449 | index += rmi_f11_input_event(hdev, data[1], &data[index], |
| 450 | size - index); |
| 451 | index += rmi_f30_input_event(hdev, data[1], &data[index], |
| 452 | size - index); |
| 453 | } else { |
| 454 | index += rmi_f30_input_event(hdev, data[1], &data[index], |
| 455 | size - index); |
| 456 | index += rmi_f11_input_event(hdev, data[1], &data[index], |
| 457 | size - index); |
| 458 | } |
| 459 | |
| 460 | return 1; |
| 461 | } |
| 462 | |
| 463 | static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size) |
| 464 | { |
| 465 | struct rmi_data *hdata = hid_get_drvdata(hdev); |
| 466 | |
| 467 | if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) { |
Andrew Duggan | 01a5f8a | 2014-07-11 14:35:51 -0700 | [diff] [blame] | 468 | hid_dbg(hdev, "no read request pending\n"); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 469 | return 0; |
| 470 | } |
| 471 | |
| 472 | memcpy(hdata->readReport, data, size < hdata->input_report_size ? |
| 473 | size : hdata->input_report_size); |
| 474 | set_bit(RMI_READ_DATA_PENDING, &hdata->flags); |
| 475 | wake_up(&hdata->wait); |
| 476 | |
| 477 | return 1; |
| 478 | } |
| 479 | |
Benjamin Tissoires | 5b65c2a | 2014-09-10 18:02:37 -0700 | [diff] [blame] | 480 | static int rmi_check_sanity(struct hid_device *hdev, u8 *data, int size) |
| 481 | { |
| 482 | int valid_size = size; |
| 483 | /* |
| 484 | * On the Dell XPS 13 9333, the bus sometimes get confused and fills |
| 485 | * the report with a sentinel value "ff". Synaptics told us that such |
| 486 | * behavior does not comes from the touchpad itself, so we filter out |
| 487 | * such reports here. |
| 488 | */ |
| 489 | |
| 490 | while ((data[valid_size - 1] == 0xff) && valid_size > 0) |
| 491 | valid_size--; |
| 492 | |
| 493 | return valid_size; |
| 494 | } |
| 495 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 496 | static int rmi_raw_event(struct hid_device *hdev, |
| 497 | struct hid_report *report, u8 *data, int size) |
| 498 | { |
Benjamin Tissoires | 5b65c2a | 2014-09-10 18:02:37 -0700 | [diff] [blame] | 499 | size = rmi_check_sanity(hdev, data, size); |
| 500 | if (size < 2) |
| 501 | return 0; |
| 502 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 503 | switch (data[0]) { |
| 504 | case RMI_READ_DATA_REPORT_ID: |
| 505 | return rmi_read_data_event(hdev, data, size); |
| 506 | case RMI_ATTN_REPORT_ID: |
| 507 | return rmi_input_event(hdev, data, size); |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 508 | default: |
| 509 | return 1; |
| 510 | } |
| 511 | |
| 512 | return 0; |
| 513 | } |
| 514 | |
| 515 | static int rmi_event(struct hid_device *hdev, struct hid_field *field, |
| 516 | struct hid_usage *usage, __s32 value) |
| 517 | { |
| 518 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 519 | |
| 520 | if ((data->device_flags & RMI_DEVICE) && |
| 521 | (field->application == HID_GD_POINTER || |
| 522 | field->application == HID_GD_MOUSE)) { |
Andrew Duggan | 79364d8 | 2015-01-08 14:51:34 -0800 | [diff] [blame] | 523 | if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) { |
| 524 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) |
| 525 | return 0; |
| 526 | |
| 527 | if ((usage->hid == HID_GD_X || usage->hid == HID_GD_Y) |
| 528 | && !value) |
| 529 | return 1; |
| 530 | } |
| 531 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 532 | rmi_schedule_reset(hdev); |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 533 | return 1; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 534 | } |
| 535 | |
| 536 | return 0; |
| 537 | } |
| 538 | |
Geert Uytterhoeven | a278e26 | 2014-06-11 21:03:18 +0200 | [diff] [blame] | 539 | #ifdef CONFIG_PM |
Andrew Duggan | 0925636 | 2015-07-06 16:48:31 -0700 | [diff] [blame^] | 540 | static int rmi_set_sleep_mode(struct hid_device *hdev, int sleep_mode) |
| 541 | { |
| 542 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 543 | int ret; |
| 544 | u8 f01_ctrl0; |
| 545 | |
| 546 | f01_ctrl0 = (data->f01_ctrl0 & ~0x3) | sleep_mode; |
| 547 | |
| 548 | ret = rmi_write(hdev, data->f01.control_base_addr, |
| 549 | &f01_ctrl0); |
| 550 | if (ret) { |
| 551 | hid_err(hdev, "can not write sleep mode\n"); |
| 552 | return ret; |
| 553 | } |
| 554 | |
| 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | static int rmi_suspend(struct hid_device *hdev, pm_message_t message) |
| 559 | { |
| 560 | if (!device_may_wakeup(hdev->dev.parent)) |
| 561 | return rmi_set_sleep_mode(hdev, RMI_SLEEP_DEEP_SLEEP); |
| 562 | |
| 563 | return 0; |
| 564 | } |
| 565 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 566 | static int rmi_post_reset(struct hid_device *hdev) |
| 567 | { |
Andrew Duggan | 0925636 | 2015-07-06 16:48:31 -0700 | [diff] [blame^] | 568 | int ret; |
| 569 | |
| 570 | ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); |
| 571 | if (ret) { |
| 572 | hid_err(hdev, "can not set rmi mode\n"); |
| 573 | return ret; |
| 574 | } |
| 575 | |
| 576 | if (!device_may_wakeup(hdev->dev.parent)) { |
| 577 | ret = rmi_set_sleep_mode(hdev, RMI_SLEEP_NORMAL); |
| 578 | if (ret) { |
| 579 | hid_err(hdev, "can not write sleep mode\n"); |
| 580 | return ret; |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | return ret; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | static int rmi_post_resume(struct hid_device *hdev) |
| 588 | { |
| 589 | return rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); |
| 590 | } |
Geert Uytterhoeven | a278e26 | 2014-06-11 21:03:18 +0200 | [diff] [blame] | 591 | #endif /* CONFIG_PM */ |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 592 | |
| 593 | #define RMI4_MAX_PAGE 0xff |
| 594 | #define RMI4_PAGE_SIZE 0x0100 |
| 595 | |
| 596 | #define PDT_START_SCAN_LOCATION 0x00e9 |
| 597 | #define PDT_END_SCAN_LOCATION 0x0005 |
| 598 | #define RMI4_END_OF_PDT(id) ((id) == 0x00 || (id) == 0xff) |
| 599 | |
| 600 | struct pdt_entry { |
| 601 | u8 query_base_addr:8; |
| 602 | u8 command_base_addr:8; |
| 603 | u8 control_base_addr:8; |
| 604 | u8 data_base_addr:8; |
| 605 | u8 interrupt_source_count:3; |
| 606 | u8 bits3and4:2; |
| 607 | u8 function_version:2; |
| 608 | u8 bit7:1; |
| 609 | u8 function_number:8; |
| 610 | } __attribute__((__packed__)); |
| 611 | |
| 612 | static inline unsigned long rmi_gen_mask(unsigned irq_base, unsigned irq_count) |
| 613 | { |
| 614 | return GENMASK(irq_count + irq_base - 1, irq_base); |
| 615 | } |
| 616 | |
| 617 | static void rmi_register_function(struct rmi_data *data, |
| 618 | struct pdt_entry *pdt_entry, int page, unsigned interrupt_count) |
| 619 | { |
| 620 | struct rmi_function *f = NULL; |
| 621 | u16 page_base = page << 8; |
| 622 | |
| 623 | switch (pdt_entry->function_number) { |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 624 | case 0x01: |
| 625 | f = &data->f01; |
| 626 | break; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 627 | case 0x11: |
| 628 | f = &data->f11; |
| 629 | break; |
| 630 | case 0x30: |
| 631 | f = &data->f30; |
| 632 | break; |
| 633 | } |
| 634 | |
| 635 | if (f) { |
| 636 | f->page = page; |
| 637 | f->query_base_addr = page_base | pdt_entry->query_base_addr; |
| 638 | f->command_base_addr = page_base | pdt_entry->command_base_addr; |
| 639 | f->control_base_addr = page_base | pdt_entry->control_base_addr; |
| 640 | f->data_base_addr = page_base | pdt_entry->data_base_addr; |
| 641 | f->interrupt_base = interrupt_count; |
| 642 | f->interrupt_count = pdt_entry->interrupt_source_count; |
| 643 | f->irq_mask = rmi_gen_mask(f->interrupt_base, |
| 644 | f->interrupt_count); |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | static int rmi_scan_pdt(struct hid_device *hdev) |
| 649 | { |
| 650 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 651 | struct pdt_entry entry; |
| 652 | int page; |
| 653 | bool page_has_function; |
| 654 | int i; |
| 655 | int retval; |
| 656 | int interrupt = 0; |
| 657 | u16 page_start, pdt_start , pdt_end; |
| 658 | |
| 659 | hid_info(hdev, "Scanning PDT...\n"); |
| 660 | |
| 661 | for (page = 0; (page <= RMI4_MAX_PAGE); page++) { |
| 662 | page_start = RMI4_PAGE_SIZE * page; |
| 663 | pdt_start = page_start + PDT_START_SCAN_LOCATION; |
| 664 | pdt_end = page_start + PDT_END_SCAN_LOCATION; |
| 665 | |
| 666 | page_has_function = false; |
| 667 | for (i = pdt_start; i >= pdt_end; i -= sizeof(entry)) { |
| 668 | retval = rmi_read_block(hdev, i, &entry, sizeof(entry)); |
| 669 | if (retval) { |
| 670 | hid_err(hdev, |
| 671 | "Read of PDT entry at %#06x failed.\n", |
| 672 | i); |
| 673 | goto error_exit; |
| 674 | } |
| 675 | |
| 676 | if (RMI4_END_OF_PDT(entry.function_number)) |
| 677 | break; |
| 678 | |
| 679 | page_has_function = true; |
| 680 | |
| 681 | hid_info(hdev, "Found F%02X on page %#04x\n", |
| 682 | entry.function_number, page); |
| 683 | |
| 684 | rmi_register_function(data, &entry, page, interrupt); |
| 685 | interrupt += entry.interrupt_source_count; |
| 686 | } |
| 687 | |
| 688 | if (!page_has_function) |
| 689 | break; |
| 690 | } |
| 691 | |
| 692 | hid_info(hdev, "%s: Done with PDT scan.\n", __func__); |
| 693 | retval = 0; |
| 694 | |
| 695 | error_exit: |
| 696 | return retval; |
| 697 | } |
| 698 | |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 699 | #define RMI_DEVICE_F01_BASIC_QUERY_LEN 11 |
| 700 | |
| 701 | static int rmi_populate_f01(struct hid_device *hdev) |
| 702 | { |
| 703 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 704 | u8 basic_queries[RMI_DEVICE_F01_BASIC_QUERY_LEN]; |
| 705 | u8 info[3]; |
| 706 | int ret; |
| 707 | bool has_query42; |
| 708 | bool has_lts; |
| 709 | bool has_sensor_id; |
| 710 | bool has_ds4_queries = false; |
| 711 | bool has_build_id_query = false; |
| 712 | bool has_package_id_query = false; |
| 713 | u16 query_offset = data->f01.query_base_addr; |
| 714 | u16 prod_info_addr; |
| 715 | u8 ds4_query_len; |
| 716 | |
| 717 | ret = rmi_read_block(hdev, query_offset, basic_queries, |
| 718 | RMI_DEVICE_F01_BASIC_QUERY_LEN); |
| 719 | if (ret) { |
| 720 | hid_err(hdev, "Can not read basic queries from Function 0x1.\n"); |
| 721 | return ret; |
| 722 | } |
| 723 | |
| 724 | has_lts = !!(basic_queries[0] & BIT(2)); |
| 725 | has_sensor_id = !!(basic_queries[1] & BIT(3)); |
| 726 | has_query42 = !!(basic_queries[1] & BIT(7)); |
| 727 | |
| 728 | query_offset += 11; |
| 729 | prod_info_addr = query_offset + 6; |
| 730 | query_offset += 10; |
| 731 | |
| 732 | if (has_lts) |
| 733 | query_offset += 20; |
| 734 | |
| 735 | if (has_sensor_id) |
| 736 | query_offset++; |
| 737 | |
| 738 | if (has_query42) { |
| 739 | ret = rmi_read(hdev, query_offset, info); |
| 740 | if (ret) { |
| 741 | hid_err(hdev, "Can not read query42.\n"); |
| 742 | return ret; |
| 743 | } |
| 744 | has_ds4_queries = !!(info[0] & BIT(0)); |
| 745 | query_offset++; |
| 746 | } |
| 747 | |
| 748 | if (has_ds4_queries) { |
| 749 | ret = rmi_read(hdev, query_offset, &ds4_query_len); |
| 750 | if (ret) { |
| 751 | hid_err(hdev, "Can not read DS4 Query length.\n"); |
| 752 | return ret; |
| 753 | } |
| 754 | query_offset++; |
| 755 | |
| 756 | if (ds4_query_len > 0) { |
| 757 | ret = rmi_read(hdev, query_offset, info); |
| 758 | if (ret) { |
| 759 | hid_err(hdev, "Can not read DS4 query.\n"); |
| 760 | return ret; |
| 761 | } |
| 762 | |
| 763 | has_package_id_query = !!(info[0] & BIT(0)); |
| 764 | has_build_id_query = !!(info[0] & BIT(1)); |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | if (has_package_id_query) |
| 769 | prod_info_addr++; |
| 770 | |
| 771 | if (has_build_id_query) { |
| 772 | ret = rmi_read_block(hdev, prod_info_addr, info, 3); |
| 773 | if (ret) { |
| 774 | hid_err(hdev, "Can not read product info.\n"); |
| 775 | return ret; |
| 776 | } |
| 777 | |
| 778 | data->firmware_id = info[1] << 8 | info[0]; |
| 779 | data->firmware_id += info[2] * 65536; |
| 780 | } |
| 781 | |
Andrew Duggan | 0925636 | 2015-07-06 16:48:31 -0700 | [diff] [blame^] | 782 | ret = rmi_read(hdev, data->f01.control_base_addr, &data->f01_ctrl0); |
| 783 | |
| 784 | if (ret) { |
| 785 | hid_err(hdev, "can not read f01 ctrl0\n"); |
| 786 | return ret; |
| 787 | } |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 788 | return 0; |
| 789 | } |
| 790 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 791 | static int rmi_populate_f11(struct hid_device *hdev) |
| 792 | { |
| 793 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 794 | u8 buf[20]; |
| 795 | int ret; |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 796 | bool has_query9; |
Andrew Duggan | 9e2c327 | 2014-07-11 14:35:50 -0700 | [diff] [blame] | 797 | bool has_query10 = false; |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 798 | bool has_query11; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 799 | bool has_query12; |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 800 | bool has_query27; |
| 801 | bool has_query28; |
| 802 | bool has_query36 = false; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 803 | bool has_physical_props; |
Andrew Duggan | 9e2c327 | 2014-07-11 14:35:50 -0700 | [diff] [blame] | 804 | bool has_gestures; |
| 805 | bool has_rel; |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 806 | bool has_data40 = false; |
Andrew Duggan | 05ba999 | 2015-02-24 17:36:49 -0800 | [diff] [blame] | 807 | bool has_dribble = false; |
Andrew Duggan | f097dee | 2015-02-24 17:36:50 -0800 | [diff] [blame] | 808 | bool has_palm_detect = false; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 809 | unsigned x_size, y_size; |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 810 | u16 query_offset; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 811 | |
| 812 | if (!data->f11.query_base_addr) { |
| 813 | hid_err(hdev, "No 2D sensor found, giving up.\n"); |
| 814 | return -ENODEV; |
| 815 | } |
| 816 | |
| 817 | /* query 0 contains some useful information */ |
| 818 | ret = rmi_read(hdev, data->f11.query_base_addr, buf); |
| 819 | if (ret) { |
| 820 | hid_err(hdev, "can not get query 0: %d.\n", ret); |
| 821 | return ret; |
| 822 | } |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 823 | has_query9 = !!(buf[0] & BIT(3)); |
| 824 | has_query11 = !!(buf[0] & BIT(4)); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 825 | has_query12 = !!(buf[0] & BIT(5)); |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 826 | has_query27 = !!(buf[0] & BIT(6)); |
| 827 | has_query28 = !!(buf[0] & BIT(7)); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 828 | |
| 829 | /* query 1 to get the max number of fingers */ |
| 830 | ret = rmi_read(hdev, data->f11.query_base_addr + 1, buf); |
| 831 | if (ret) { |
| 832 | hid_err(hdev, "can not get NumberOfFingers: %d.\n", ret); |
| 833 | return ret; |
| 834 | } |
| 835 | data->max_fingers = (buf[0] & 0x07) + 1; |
| 836 | if (data->max_fingers > 5) |
| 837 | data->max_fingers = 10; |
| 838 | |
| 839 | data->f11.report_size = data->max_fingers * 5 + |
| 840 | DIV_ROUND_UP(data->max_fingers, 4); |
| 841 | |
| 842 | if (!(buf[0] & BIT(4))) { |
| 843 | hid_err(hdev, "No absolute events, giving up.\n"); |
| 844 | return -ENODEV; |
| 845 | } |
| 846 | |
Andrew Duggan | 9e2c327 | 2014-07-11 14:35:50 -0700 | [diff] [blame] | 847 | has_rel = !!(buf[0] & BIT(3)); |
| 848 | has_gestures = !!(buf[0] & BIT(5)); |
| 849 | |
Andrew Duggan | 05ba999 | 2015-02-24 17:36:49 -0800 | [diff] [blame] | 850 | ret = rmi_read(hdev, data->f11.query_base_addr + 5, buf); |
| 851 | if (ret) { |
| 852 | hid_err(hdev, "can not get absolute data sources: %d.\n", ret); |
| 853 | return ret; |
| 854 | } |
| 855 | |
| 856 | has_dribble = !!(buf[0] & BIT(4)); |
| 857 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 858 | /* |
Andrew Duggan | 9e2c327 | 2014-07-11 14:35:50 -0700 | [diff] [blame] | 859 | * At least 4 queries are guaranteed to be present in F11 |
| 860 | * +1 for query 5 which is present since absolute events are |
| 861 | * reported and +1 for query 12. |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 862 | */ |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 863 | query_offset = 6; |
Andrew Duggan | 9e2c327 | 2014-07-11 14:35:50 -0700 | [diff] [blame] | 864 | |
| 865 | if (has_rel) |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 866 | ++query_offset; /* query 6 is present */ |
Andrew Duggan | 9e2c327 | 2014-07-11 14:35:50 -0700 | [diff] [blame] | 867 | |
Andrew Duggan | cabd9b5 | 2014-12-08 15:02:00 -0800 | [diff] [blame] | 868 | if (has_gestures) { |
| 869 | /* query 8 to find out if query 10 exists */ |
| 870 | ret = rmi_read(hdev, |
| 871 | data->f11.query_base_addr + query_offset + 1, buf); |
| 872 | if (ret) { |
| 873 | hid_err(hdev, "can not read gesture information: %d.\n", |
| 874 | ret); |
| 875 | return ret; |
| 876 | } |
Andrew Duggan | f097dee | 2015-02-24 17:36:50 -0800 | [diff] [blame] | 877 | has_palm_detect = !!(buf[0] & BIT(0)); |
Andrew Duggan | cabd9b5 | 2014-12-08 15:02:00 -0800 | [diff] [blame] | 878 | has_query10 = !!(buf[0] & BIT(2)); |
| 879 | |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 880 | query_offset += 2; /* query 7 and 8 are present */ |
Andrew Duggan | cabd9b5 | 2014-12-08 15:02:00 -0800 | [diff] [blame] | 881 | } |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 882 | |
| 883 | if (has_query9) |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 884 | ++query_offset; |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 885 | |
| 886 | if (has_query10) |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 887 | ++query_offset; |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 888 | |
| 889 | if (has_query11) |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 890 | ++query_offset; |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 891 | |
| 892 | /* query 12 to know if the physical properties are reported */ |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 893 | if (has_query12) { |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 894 | ret = rmi_read(hdev, data->f11.query_base_addr |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 895 | + query_offset, buf); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 896 | if (ret) { |
| 897 | hid_err(hdev, "can not get query 12: %d.\n", ret); |
| 898 | return ret; |
| 899 | } |
| 900 | has_physical_props = !!(buf[0] & BIT(5)); |
| 901 | |
| 902 | if (has_physical_props) { |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 903 | query_offset += 1; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 904 | ret = rmi_read_block(hdev, |
Andrew Duggan | f15475c | 2014-05-02 11:14:16 -0700 | [diff] [blame] | 905 | data->f11.query_base_addr |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 906 | + query_offset, buf, 4); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 907 | if (ret) { |
| 908 | hid_err(hdev, "can not read query 15-18: %d.\n", |
| 909 | ret); |
| 910 | return ret; |
| 911 | } |
| 912 | |
| 913 | x_size = buf[0] | (buf[1] << 8); |
| 914 | y_size = buf[2] | (buf[3] << 8); |
| 915 | |
| 916 | data->x_size_mm = DIV_ROUND_CLOSEST(x_size, 10); |
| 917 | data->y_size_mm = DIV_ROUND_CLOSEST(y_size, 10); |
| 918 | |
| 919 | hid_info(hdev, "%s: size in mm: %d x %d\n", |
| 920 | __func__, data->x_size_mm, data->y_size_mm); |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 921 | |
| 922 | /* |
| 923 | * query 15 - 18 contain the size of the sensor |
| 924 | * and query 19 - 26 contain bezel dimensions |
| 925 | */ |
| 926 | query_offset += 12; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 927 | } |
| 928 | } |
| 929 | |
Andrew Duggan | 8414947 | 2014-12-08 15:01:59 -0800 | [diff] [blame] | 930 | if (has_query27) |
| 931 | ++query_offset; |
| 932 | |
| 933 | if (has_query28) { |
| 934 | ret = rmi_read(hdev, data->f11.query_base_addr |
| 935 | + query_offset, buf); |
| 936 | if (ret) { |
| 937 | hid_err(hdev, "can not get query 28: %d.\n", ret); |
| 938 | return ret; |
| 939 | } |
| 940 | |
| 941 | has_query36 = !!(buf[0] & BIT(6)); |
| 942 | } |
| 943 | |
| 944 | if (has_query36) { |
| 945 | query_offset += 2; |
| 946 | ret = rmi_read(hdev, data->f11.query_base_addr |
| 947 | + query_offset, buf); |
| 948 | if (ret) { |
| 949 | hid_err(hdev, "can not get query 36: %d.\n", ret); |
| 950 | return ret; |
| 951 | } |
| 952 | |
| 953 | has_data40 = !!(buf[0] & BIT(5)); |
| 954 | } |
| 955 | |
| 956 | |
| 957 | if (has_data40) |
| 958 | data->f11.report_size += data->max_fingers * 2; |
| 959 | |
Benjamin Tissoires | dcce583 | 2014-04-24 18:26:38 -0400 | [diff] [blame] | 960 | /* |
| 961 | * retrieve the ctrl registers |
| 962 | * the ctrl register has a size of 20 but a fw bug split it into 16 + 4, |
| 963 | * and there is no way to know if the first 20 bytes are here or not. |
Andrew Duggan | f097dee | 2015-02-24 17:36:50 -0800 | [diff] [blame] | 964 | * We use only the first 12 bytes, so get only them. |
Benjamin Tissoires | dcce583 | 2014-04-24 18:26:38 -0400 | [diff] [blame] | 965 | */ |
Andrew Duggan | f097dee | 2015-02-24 17:36:50 -0800 | [diff] [blame] | 966 | ret = rmi_read_block(hdev, data->f11.control_base_addr, buf, 12); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 967 | if (ret) { |
Andrew Duggan | f097dee | 2015-02-24 17:36:50 -0800 | [diff] [blame] | 968 | hid_err(hdev, "can not read ctrl block of size 11: %d.\n", ret); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 969 | return ret; |
| 970 | } |
| 971 | |
| 972 | data->max_x = buf[6] | (buf[7] << 8); |
| 973 | data->max_y = buf[8] | (buf[9] << 8); |
| 974 | |
Andrew Duggan | 05ba999 | 2015-02-24 17:36:49 -0800 | [diff] [blame] | 975 | if (has_dribble) { |
| 976 | buf[0] = buf[0] & ~BIT(6); |
| 977 | ret = rmi_write(hdev, data->f11.control_base_addr, buf); |
| 978 | if (ret) { |
| 979 | hid_err(hdev, "can not write to control reg 0: %d.\n", |
| 980 | ret); |
| 981 | return ret; |
| 982 | } |
| 983 | } |
| 984 | |
Andrew Duggan | f097dee | 2015-02-24 17:36:50 -0800 | [diff] [blame] | 985 | if (has_palm_detect) { |
| 986 | buf[11] = buf[11] & ~BIT(0); |
| 987 | ret = rmi_write(hdev, data->f11.control_base_addr + 11, |
| 988 | &buf[11]); |
| 989 | if (ret) { |
| 990 | hid_err(hdev, "can not write to control reg 11: %d.\n", |
| 991 | ret); |
| 992 | return ret; |
| 993 | } |
| 994 | } |
| 995 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 996 | return 0; |
| 997 | } |
| 998 | |
| 999 | static int rmi_populate_f30(struct hid_device *hdev) |
| 1000 | { |
| 1001 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 1002 | u8 buf[20]; |
| 1003 | int ret; |
| 1004 | bool has_gpio, has_led; |
| 1005 | unsigned bytes_per_ctrl; |
| 1006 | u8 ctrl2_addr; |
| 1007 | int ctrl2_3_length; |
| 1008 | int i; |
| 1009 | |
| 1010 | /* function F30 is for physical buttons */ |
| 1011 | if (!data->f30.query_base_addr) { |
| 1012 | hid_err(hdev, "No GPIO/LEDs found, giving up.\n"); |
| 1013 | return -ENODEV; |
| 1014 | } |
| 1015 | |
| 1016 | ret = rmi_read_block(hdev, data->f30.query_base_addr, buf, 2); |
| 1017 | if (ret) { |
| 1018 | hid_err(hdev, "can not get F30 query registers: %d.\n", ret); |
| 1019 | return ret; |
| 1020 | } |
| 1021 | |
| 1022 | has_gpio = !!(buf[0] & BIT(3)); |
| 1023 | has_led = !!(buf[0] & BIT(2)); |
| 1024 | data->gpio_led_count = buf[1] & 0x1f; |
| 1025 | |
| 1026 | /* retrieve ctrl 2 & 3 registers */ |
| 1027 | bytes_per_ctrl = (data->gpio_led_count + 7) / 8; |
| 1028 | /* Ctrl0 is present only if both has_gpio and has_led are set*/ |
| 1029 | ctrl2_addr = (has_gpio && has_led) ? bytes_per_ctrl : 0; |
| 1030 | /* Ctrl1 is always be present */ |
| 1031 | ctrl2_addr += bytes_per_ctrl; |
| 1032 | ctrl2_3_length = 2 * bytes_per_ctrl; |
| 1033 | |
| 1034 | data->f30.report_size = bytes_per_ctrl; |
| 1035 | |
| 1036 | ret = rmi_read_block(hdev, data->f30.control_base_addr + ctrl2_addr, |
| 1037 | buf, ctrl2_3_length); |
| 1038 | if (ret) { |
| 1039 | hid_err(hdev, "can not read ctrl 2&3 block of size %d: %d.\n", |
| 1040 | ctrl2_3_length, ret); |
| 1041 | return ret; |
| 1042 | } |
| 1043 | |
| 1044 | for (i = 0; i < data->gpio_led_count; i++) { |
| 1045 | int byte_position = i >> 3; |
| 1046 | int bit_position = i & 0x07; |
| 1047 | u8 dir_byte = buf[byte_position]; |
| 1048 | u8 data_byte = buf[byte_position + bytes_per_ctrl]; |
| 1049 | bool dir = (dir_byte >> bit_position) & BIT(0); |
| 1050 | bool dat = (data_byte >> bit_position) & BIT(0); |
| 1051 | |
| 1052 | if (dir == 0) { |
| 1053 | /* input mode */ |
| 1054 | if (dat) { |
| 1055 | /* actual buttons have pull up resistor */ |
| 1056 | data->button_count++; |
| 1057 | set_bit(i, &data->button_mask); |
| 1058 | set_bit(i, &data->button_state_mask); |
| 1059 | } |
| 1060 | } |
| 1061 | |
| 1062 | } |
| 1063 | |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
| 1067 | static int rmi_populate(struct hid_device *hdev) |
| 1068 | { |
Andrew Duggan | 10e87dc | 2015-06-16 14:08:41 -0700 | [diff] [blame] | 1069 | struct rmi_data *data = hid_get_drvdata(hdev); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1070 | int ret; |
| 1071 | |
| 1072 | ret = rmi_scan_pdt(hdev); |
| 1073 | if (ret) { |
| 1074 | hid_err(hdev, "PDT scan failed with code %d.\n", ret); |
| 1075 | return ret; |
| 1076 | } |
| 1077 | |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 1078 | ret = rmi_populate_f01(hdev); |
| 1079 | if (ret) { |
| 1080 | hid_err(hdev, "Error while initializing F01 (%d).\n", ret); |
| 1081 | return ret; |
| 1082 | } |
| 1083 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1084 | ret = rmi_populate_f11(hdev); |
| 1085 | if (ret) { |
| 1086 | hid_err(hdev, "Error while initializing F11 (%d).\n", ret); |
| 1087 | return ret; |
| 1088 | } |
| 1089 | |
Andrew Duggan | 10e87dc | 2015-06-16 14:08:41 -0700 | [diff] [blame] | 1090 | if (!(data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)) { |
| 1091 | ret = rmi_populate_f30(hdev); |
| 1092 | if (ret) |
| 1093 | hid_warn(hdev, "Error while initializing F30 (%d).\n", ret); |
| 1094 | } |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1095 | |
| 1096 | return 0; |
| 1097 | } |
| 1098 | |
| 1099 | static void rmi_input_configured(struct hid_device *hdev, struct hid_input *hi) |
| 1100 | { |
| 1101 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 1102 | struct input_dev *input = hi->input; |
| 1103 | int ret; |
| 1104 | int res_x, res_y, i; |
| 1105 | |
| 1106 | data->input = input; |
| 1107 | |
| 1108 | hid_dbg(hdev, "Opening low level driver\n"); |
| 1109 | ret = hid_hw_open(hdev); |
| 1110 | if (ret) |
| 1111 | return; |
| 1112 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1113 | if (!(data->device_flags & RMI_DEVICE)) |
| 1114 | return; |
| 1115 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1116 | /* Allow incoming hid reports */ |
| 1117 | hid_device_io_start(hdev); |
| 1118 | |
| 1119 | ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); |
| 1120 | if (ret < 0) { |
| 1121 | dev_err(&hdev->dev, "failed to set rmi mode\n"); |
| 1122 | goto exit; |
| 1123 | } |
| 1124 | |
| 1125 | ret = rmi_set_page(hdev, 0); |
| 1126 | if (ret < 0) { |
| 1127 | dev_err(&hdev->dev, "failed to set page select to 0.\n"); |
| 1128 | goto exit; |
| 1129 | } |
| 1130 | |
| 1131 | ret = rmi_populate(hdev); |
| 1132 | if (ret) |
| 1133 | goto exit; |
| 1134 | |
Andrew Duggan | 70e003f | 2015-02-10 12:36:55 -0800 | [diff] [blame] | 1135 | hid_info(hdev, "firmware id: %ld\n", data->firmware_id); |
| 1136 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1137 | __set_bit(EV_ABS, input->evbit); |
| 1138 | input_set_abs_params(input, ABS_MT_POSITION_X, 1, data->max_x, 0, 0); |
| 1139 | input_set_abs_params(input, ABS_MT_POSITION_Y, 1, data->max_y, 0, 0); |
| 1140 | |
Jiri Kosina | b668fdc | 2014-05-13 21:17:29 +0200 | [diff] [blame] | 1141 | if (data->x_size_mm && data->y_size_mm) { |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1142 | res_x = (data->max_x - 1) / data->x_size_mm; |
Jiri Kosina | b668fdc | 2014-05-13 21:17:29 +0200 | [diff] [blame] | 1143 | res_y = (data->max_y - 1) / data->y_size_mm; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1144 | |
| 1145 | input_abs_set_res(input, ABS_MT_POSITION_X, res_x); |
| 1146 | input_abs_set_res(input, ABS_MT_POSITION_Y, res_y); |
| 1147 | } |
| 1148 | |
| 1149 | input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0); |
| 1150 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, 0xff, 0, 0); |
| 1151 | input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 0x0f, 0, 0); |
| 1152 | input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 0x0f, 0, 0); |
| 1153 | |
| 1154 | input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER); |
| 1155 | |
| 1156 | if (data->button_count) { |
| 1157 | __set_bit(EV_KEY, input->evbit); |
| 1158 | for (i = 0; i < data->button_count; i++) |
| 1159 | __set_bit(BTN_LEFT + i, input->keybit); |
| 1160 | |
| 1161 | if (data->button_count == 1) |
| 1162 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
| 1163 | } |
| 1164 | |
| 1165 | set_bit(RMI_STARTED, &data->flags); |
| 1166 | |
| 1167 | exit: |
| 1168 | hid_device_io_stop(hdev); |
| 1169 | hid_hw_close(hdev); |
| 1170 | } |
| 1171 | |
| 1172 | static int rmi_input_mapping(struct hid_device *hdev, |
| 1173 | struct hid_input *hi, struct hid_field *field, |
| 1174 | struct hid_usage *usage, unsigned long **bit, int *max) |
| 1175 | { |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1176 | struct rmi_data *data = hid_get_drvdata(hdev); |
| 1177 | |
| 1178 | /* |
| 1179 | * we want to make HID ignore the advertised HID collection |
| 1180 | * for RMI deivces |
| 1181 | */ |
Andrew Duggan | 79364d8 | 2015-01-08 14:51:34 -0800 | [diff] [blame] | 1182 | if (data->device_flags & RMI_DEVICE) { |
| 1183 | if ((data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) && |
| 1184 | ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)) |
| 1185 | return 0; |
| 1186 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1187 | return -1; |
Andrew Duggan | 79364d8 | 2015-01-08 14:51:34 -0800 | [diff] [blame] | 1188 | } |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1189 | |
| 1190 | return 0; |
| 1191 | } |
| 1192 | |
| 1193 | static int rmi_check_valid_report_id(struct hid_device *hdev, unsigned type, |
| 1194 | unsigned id, struct hid_report **report) |
| 1195 | { |
| 1196 | int i; |
| 1197 | |
| 1198 | *report = hdev->report_enum[type].report_id_hash[id]; |
| 1199 | if (*report) { |
| 1200 | for (i = 0; i < (*report)->maxfield; i++) { |
| 1201 | unsigned app = (*report)->field[i]->application; |
| 1202 | if ((app & HID_USAGE_PAGE) >= HID_UP_MSVENDOR) |
| 1203 | return 1; |
| 1204 | } |
| 1205 | } |
| 1206 | |
| 1207 | return 0; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1208 | } |
| 1209 | |
| 1210 | static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) |
| 1211 | { |
| 1212 | struct rmi_data *data = NULL; |
| 1213 | int ret; |
| 1214 | size_t alloc_size; |
Andrew Duggan | dd3edeb | 2014-07-17 16:14:44 -0700 | [diff] [blame] | 1215 | struct hid_report *input_report; |
| 1216 | struct hid_report *output_report; |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1217 | struct hid_report *feature_report; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1218 | |
| 1219 | data = devm_kzalloc(&hdev->dev, sizeof(struct rmi_data), GFP_KERNEL); |
| 1220 | if (!data) |
| 1221 | return -ENOMEM; |
| 1222 | |
| 1223 | INIT_WORK(&data->reset_work, rmi_reset_work); |
| 1224 | data->hdev = hdev; |
| 1225 | |
| 1226 | hid_set_drvdata(hdev, data); |
| 1227 | |
| 1228 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; |
| 1229 | |
| 1230 | ret = hid_parse(hdev); |
| 1231 | if (ret) { |
| 1232 | hid_err(hdev, "parse failed\n"); |
| 1233 | return ret; |
| 1234 | } |
| 1235 | |
Andrew Duggan | 79364d8 | 2015-01-08 14:51:34 -0800 | [diff] [blame] | 1236 | if (id->driver_data) |
| 1237 | data->device_flags = id->driver_data; |
| 1238 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1239 | /* |
| 1240 | * Check for the RMI specific report ids. If they are misisng |
| 1241 | * simply return and let the events be processed by hid-input |
| 1242 | */ |
| 1243 | if (!rmi_check_valid_report_id(hdev, HID_FEATURE_REPORT, |
| 1244 | RMI_SET_RMI_MODE_REPORT_ID, &feature_report)) { |
| 1245 | hid_dbg(hdev, "device does not have set mode feature report\n"); |
| 1246 | goto start; |
| 1247 | } |
| 1248 | |
| 1249 | if (!rmi_check_valid_report_id(hdev, HID_INPUT_REPORT, |
| 1250 | RMI_ATTN_REPORT_ID, &input_report)) { |
| 1251 | hid_dbg(hdev, "device does not have attention input report\n"); |
| 1252 | goto start; |
Andrew Duggan | dd3edeb | 2014-07-17 16:14:44 -0700 | [diff] [blame] | 1253 | } |
| 1254 | |
Andrew Duggan | b8aed6e | 2015-01-08 14:51:36 -0800 | [diff] [blame] | 1255 | data->input_report_size = hid_report_len(input_report); |
Andrew Duggan | dd3edeb | 2014-07-17 16:14:44 -0700 | [diff] [blame] | 1256 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1257 | if (!rmi_check_valid_report_id(hdev, HID_OUTPUT_REPORT, |
| 1258 | RMI_WRITE_REPORT_ID, &output_report)) { |
| 1259 | hid_dbg(hdev, |
| 1260 | "device does not have rmi write output report\n"); |
| 1261 | goto start; |
Andrew Duggan | dd3edeb | 2014-07-17 16:14:44 -0700 | [diff] [blame] | 1262 | } |
| 1263 | |
Andrew Duggan | b8aed6e | 2015-01-08 14:51:36 -0800 | [diff] [blame] | 1264 | data->output_report_size = hid_report_len(output_report); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1265 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1266 | data->device_flags |= RMI_DEVICE; |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1267 | alloc_size = data->output_report_size + data->input_report_size; |
| 1268 | |
| 1269 | data->writeReport = devm_kzalloc(&hdev->dev, alloc_size, GFP_KERNEL); |
| 1270 | if (!data->writeReport) { |
| 1271 | ret = -ENOMEM; |
| 1272 | return ret; |
| 1273 | } |
| 1274 | |
| 1275 | data->readReport = data->writeReport + data->output_report_size; |
| 1276 | |
| 1277 | init_waitqueue_head(&data->wait); |
| 1278 | |
| 1279 | mutex_init(&data->page_mutex); |
| 1280 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1281 | start: |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1282 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
| 1283 | if (ret) { |
| 1284 | hid_err(hdev, "hw start failed\n"); |
| 1285 | return ret; |
| 1286 | } |
| 1287 | |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1288 | if ((data->device_flags & RMI_DEVICE) && |
| 1289 | !test_bit(RMI_STARTED, &data->flags)) |
Andrew Duggan | daebdd7 | 2014-08-06 13:37:40 -0700 | [diff] [blame] | 1290 | /* |
| 1291 | * The device maybe in the bootloader if rmi_input_configured |
| 1292 | * failed to find F11 in the PDT. Print an error, but don't |
| 1293 | * return an error from rmi_probe so that hidraw will be |
| 1294 | * accessible from userspace. That way a userspace tool |
| 1295 | * can be used to reload working firmware on the touchpad. |
| 1296 | */ |
| 1297 | hid_err(hdev, "Device failed to be properly configured\n"); |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1298 | |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1299 | return 0; |
| 1300 | } |
| 1301 | |
| 1302 | static void rmi_remove(struct hid_device *hdev) |
| 1303 | { |
| 1304 | struct rmi_data *hdata = hid_get_drvdata(hdev); |
| 1305 | |
| 1306 | clear_bit(RMI_STARTED, &hdata->flags); |
| 1307 | |
| 1308 | hid_hw_stop(hdev); |
| 1309 | } |
| 1310 | |
| 1311 | static const struct hid_device_id rmi_id[] = { |
Andrew Duggan | e928709 | 2015-01-08 14:51:35 -0800 | [diff] [blame] | 1312 | { HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14), |
| 1313 | .driver_data = RMI_DEVICE_HAS_PHYS_BUTTONS }, |
Benjamin Tissoires | ba391e5 | 2014-05-21 11:15:56 -0400 | [diff] [blame] | 1314 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) }, |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1315 | { } |
| 1316 | }; |
| 1317 | MODULE_DEVICE_TABLE(hid, rmi_id); |
| 1318 | |
| 1319 | static struct hid_driver rmi_driver = { |
| 1320 | .name = "hid-rmi", |
| 1321 | .id_table = rmi_id, |
| 1322 | .probe = rmi_probe, |
| 1323 | .remove = rmi_remove, |
Andrew Duggan | 2f43de6 | 2014-12-19 14:45:41 -0800 | [diff] [blame] | 1324 | .event = rmi_event, |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1325 | .raw_event = rmi_raw_event, |
| 1326 | .input_mapping = rmi_input_mapping, |
| 1327 | .input_configured = rmi_input_configured, |
| 1328 | #ifdef CONFIG_PM |
Andrew Duggan | 0925636 | 2015-07-06 16:48:31 -0700 | [diff] [blame^] | 1329 | .suspend = rmi_suspend, |
Benjamin Tissoires | 9fb6bf0 | 2014-04-07 13:39:33 -0400 | [diff] [blame] | 1330 | .resume = rmi_post_resume, |
| 1331 | .reset_resume = rmi_post_reset, |
| 1332 | #endif |
| 1333 | }; |
| 1334 | |
| 1335 | module_hid_driver(rmi_driver); |
| 1336 | |
| 1337 | MODULE_AUTHOR("Andrew Duggan <aduggan@synaptics.com>"); |
| 1338 | MODULE_DESCRIPTION("RMI HID driver"); |
| 1339 | MODULE_LICENSE("GPL"); |