Commit | Line | Data |
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6972a859 DD |
1 | /* |
2 | * Cypress APA trackpad with I2C interface | |
3 | * | |
4 | * Author: Dudley Du <dudl@cypress.com> | |
5 | * | |
94897619 | 6 | * Copyright (C) 2014-2015 Cypress Semiconductor, Inc. |
6972a859 DD |
7 | * |
8 | * This file is subject to the terms and conditions of the GNU General Public | |
9 | * License. See the file COPYING in the main directory of this archive for | |
10 | * more details. | |
11 | */ | |
12 | ||
13 | #include <linux/delay.h> | |
14 | #include <linux/i2c.h> | |
15 | #include <linux/input.h> | |
16 | #include <linux/input/mt.h> | |
17 | #include <linux/mutex.h> | |
18 | #include <linux/completion.h> | |
19 | #include <linux/slab.h> | |
17a28055 | 20 | #include <asm/unaligned.h> |
5812d306 | 21 | #include <linux/crc-itu-t.h> |
757cae5a | 22 | #include <linux/pm_runtime.h> |
6972a859 DD |
23 | #include "cyapa.h" |
24 | ||
25 | ||
94897619 | 26 | /* Macro of TSG firmware image */ |
6972a859 DD |
27 | #define CYAPA_TSG_FLASH_MAP_BLOCK_SIZE 0x80 |
28 | #define CYAPA_TSG_IMG_FW_HDR_SIZE 13 | |
29 | #define CYAPA_TSG_FW_ROW_SIZE (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE) | |
30 | #define CYAPA_TSG_IMG_START_ROW_NUM 0x002e | |
31 | #define CYAPA_TSG_IMG_END_ROW_NUM 0x01fe | |
32 | #define CYAPA_TSG_IMG_APP_INTEGRITY_ROW_NUM 0x01ff | |
33 | #define CYAPA_TSG_IMG_MAX_RECORDS (CYAPA_TSG_IMG_END_ROW_NUM - \ | |
34 | CYAPA_TSG_IMG_START_ROW_NUM + 1 + 1) | |
35 | #define CYAPA_TSG_IMG_READ_SIZE (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE / 2) | |
36 | #define CYAPA_TSG_START_OF_APPLICATION 0x1700 | |
37 | #define CYAPA_TSG_APP_INTEGRITY_SIZE 60 | |
38 | #define CYAPA_TSG_FLASH_MAP_METADATA_SIZE 60 | |
39 | #define CYAPA_TSG_BL_KEY_SIZE 8 | |
40 | ||
41 | #define CYAPA_TSG_MAX_CMD_SIZE 256 | |
42 | ||
94897619 DD |
43 | /* Macro of PIP interface */ |
44 | #define PIP_BL_INITIATE_RESP_LEN 11 | |
45 | #define PIP_BL_FAIL_EXIT_RESP_LEN 11 | |
46 | #define PIP_BL_FAIL_EXIT_STATUS_CODE 0x0c | |
47 | #define PIP_BL_VERIFY_INTEGRITY_RESP_LEN 12 | |
48 | #define PIP_BL_INTEGRITY_CHEKC_PASS 0x00 | |
49 | #define PIP_BL_BLOCK_WRITE_RESP_LEN 11 | |
50 | ||
51 | #define PIP_TOUCH_REPORT_ID 0x01 | |
52 | #define PIP_BTN_REPORT_ID 0x03 | |
53 | #define PIP_WAKEUP_EVENT_REPORT_ID 0x04 | |
54 | #define PIP_PUSH_BTN_REPORT_ID 0x06 | |
55 | #define GEN5_OLD_PUSH_BTN_REPORT_ID 0x05 /* Special for old Gen5 TP. */ | |
945525ee DD |
56 | #define PIP_PROXIMITY_REPORT_ID 0x07 |
57 | ||
58 | #define PIP_PROXIMITY_REPORT_SIZE 6 | |
59 | #define PIP_PROXIMITY_DISTANCE_OFFSET 0x05 | |
60 | #define PIP_PROXIMITY_DISTANCE_MASK 0x01 | |
94897619 DD |
61 | |
62 | #define PIP_TOUCH_REPORT_HEAD_SIZE 7 | |
63 | #define PIP_TOUCH_REPORT_MAX_SIZE 127 | |
64 | #define PIP_BTN_REPORT_HEAD_SIZE 6 | |
65 | #define PIP_BTN_REPORT_MAX_SIZE 14 | |
66 | #define PIP_WAKEUP_EVENT_SIZE 4 | |
67 | ||
68 | #define PIP_NUMBER_OF_TOUCH_OFFSET 5 | |
69 | #define PIP_NUMBER_OF_TOUCH_MASK 0x1f | |
70 | #define PIP_BUTTONS_OFFSET 5 | |
71 | #define PIP_BUTTONS_MASK 0x0f | |
72 | #define PIP_GET_EVENT_ID(reg) (((reg) >> 5) & 0x03) | |
73 | #define PIP_GET_TOUCH_ID(reg) ((reg) & 0x1f) | |
74 | #define PIP_TOUCH_TYPE_FINGER 0x00 | |
75 | #define PIP_TOUCH_TYPE_PROXIMITY 0x01 | |
76 | #define PIP_TOUCH_TYPE_HOVER 0x02 | |
77 | #define PIP_GET_TOUCH_TYPE(reg) ((reg) & 0x07) | |
6972a859 | 78 | |
94897619 DD |
79 | #define RECORD_EVENT_NONE 0 |
80 | #define RECORD_EVENT_TOUCHDOWN 1 | |
81 | #define RECORD_EVENT_DISPLACE 2 | |
82 | #define RECORD_EVENT_LIFTOFF 3 | |
6972a859 | 83 | |
94897619 DD |
84 | #define PIP_SENSING_MODE_MUTUAL_CAP_FINE 0x00 |
85 | #define PIP_SENSING_MODE_SELF_CAP 0x02 | |
86 | ||
945525ee DD |
87 | #define PIP_SET_PROXIMITY 0x49 |
88 | ||
94897619 DD |
89 | /* Macro of Gen5 */ |
90 | #define GEN5_BL_MAX_OUTPUT_LENGTH 0x0100 | |
91 | #define GEN5_APP_MAX_OUTPUT_LENGTH 0x00fe | |
6972a859 DD |
92 | |
93 | #define GEN5_POWER_STATE_ACTIVE 0x01 | |
94 | #define GEN5_POWER_STATE_LOOK_FOR_TOUCH 0x02 | |
95 | #define GEN5_POWER_STATE_READY 0x03 | |
96 | #define GEN5_POWER_STATE_IDLE 0x04 | |
97 | #define GEN5_POWER_STATE_BTN_ONLY 0x05 | |
98 | #define GEN5_POWER_STATE_OFF 0x06 | |
99 | ||
6972a859 DD |
100 | #define GEN5_POWER_READY_MAX_INTRVL_TIME 50 /* Unit: ms */ |
101 | #define GEN5_POWER_IDLE_MAX_INTRVL_TIME 250 /* Unit: ms */ | |
102 | ||
94897619 DD |
103 | #define GEN5_CMD_GET_PARAMETER 0x05 |
104 | #define GEN5_CMD_SET_PARAMETER 0x06 | |
105 | #define GEN5_PARAMETER_ACT_INTERVL_ID 0x4d | |
106 | #define GEN5_PARAMETER_ACT_INTERVL_SIZE 1 | |
107 | #define GEN5_PARAMETER_ACT_LFT_INTERVL_ID 0x4f | |
108 | #define GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE 2 | |
109 | #define GEN5_PARAMETER_LP_INTRVL_ID 0x4c | |
110 | #define GEN5_PARAMETER_LP_INTRVL_SIZE 2 | |
111 | ||
112 | #define GEN5_PARAMETER_DISABLE_PIP_REPORT 0x08 | |
6972a859 DD |
113 | |
114 | #define GEN5_BL_REPORT_DESCRIPTOR_SIZE 0x1d | |
115 | #define GEN5_BL_REPORT_DESCRIPTOR_ID 0xfe | |
116 | #define GEN5_APP_REPORT_DESCRIPTOR_SIZE 0xee | |
117 | #define GEN5_APP_CONTRACT_REPORT_DESCRIPTOR_SIZE 0xfa | |
118 | #define GEN5_APP_REPORT_DESCRIPTOR_ID 0xf6 | |
119 | ||
6972a859 DD |
120 | #define GEN5_RETRIEVE_MUTUAL_PWC_DATA 0x00 |
121 | #define GEN5_RETRIEVE_SELF_CAP_PWC_DATA 0x01 | |
122 | ||
123 | #define GEN5_RETRIEVE_DATA_ELEMENT_SIZE_MASK 0x07 | |
124 | ||
125 | #define GEN5_CMD_EXECUTE_PANEL_SCAN 0x2a | |
126 | #define GEN5_CMD_RETRIEVE_PANEL_SCAN 0x2b | |
127 | #define GEN5_PANEL_SCAN_MUTUAL_RAW_DATA 0x00 | |
128 | #define GEN5_PANEL_SCAN_MUTUAL_BASELINE 0x01 | |
129 | #define GEN5_PANEL_SCAN_MUTUAL_DIFFCOUNT 0x02 | |
130 | #define GEN5_PANEL_SCAN_SELF_RAW_DATA 0x03 | |
131 | #define GEN5_PANEL_SCAN_SELF_BASELINE 0x04 | |
132 | #define GEN5_PANEL_SCAN_SELF_DIFFCOUNT 0x05 | |
133 | ||
94897619 | 134 | /* The offset only valid for retrieve PWC and panel scan commands */ |
6972a859 DD |
135 | #define GEN5_RESP_DATA_STRUCTURE_OFFSET 10 |
136 | #define GEN5_PWC_DATA_ELEMENT_SIZE_MASK 0x07 | |
137 | ||
6972a859 | 138 | |
94897619 | 139 | struct cyapa_pip_touch_record { |
6972a859 DD |
140 | /* |
141 | * Bit 7 - 3: reserved | |
142 | * Bit 2 - 0: touch type; | |
143 | * 0 : standard finger; | |
c2c06c41 DD |
144 | * 1 : proximity (Start supported in Gen5 TP). |
145 | * 2 : finger hover (defined, but not used yet.) | |
146 | * 3 - 15 : reserved. | |
6972a859 DD |
147 | */ |
148 | u8 touch_type; | |
149 | ||
150 | /* | |
151 | * Bit 7: indicates touch liftoff status. | |
152 | * 0 : touch is currently on the panel. | |
153 | * 1 : touch record indicates a liftoff. | |
154 | * Bit 6 - 5: indicates an event associated with this touch instance | |
155 | * 0 : no event | |
156 | * 1 : touchdown | |
157 | * 2 : significant displacement (> active distance) | |
158 | * 3 : liftoff (record reports last known coordinates) | |
159 | * Bit 4 - 0: An arbitrary ID tag associated with a finger | |
160 | * to allow tracking a touch as it moves around the panel. | |
161 | */ | |
162 | u8 touch_tip_event_id; | |
163 | ||
164 | /* Bit 7 - 0 of X-axis coordinate of the touch in pixel. */ | |
165 | u8 x_lo; | |
166 | ||
167 | /* Bit 15 - 8 of X-axis coordinate of the touch in pixel. */ | |
168 | u8 x_hi; | |
169 | ||
170 | /* Bit 7 - 0 of Y-axis coordinate of the touch in pixel. */ | |
171 | u8 y_lo; | |
172 | ||
173 | /* Bit 15 - 8 of Y-axis coordinate of the touch in pixel. */ | |
174 | u8 y_hi; | |
175 | ||
94897619 DD |
176 | /* |
177 | * The meaning of this value is different when touch_type is different. | |
178 | * For standard finger type: | |
179 | * Touch intensity in counts, pressure value. | |
c2c06c41 DD |
180 | * For proximity type (Start supported in Gen5 TP): |
181 | * The distance, in surface units, between the contact and | |
182 | * the surface. | |
94897619 | 183 | **/ |
6972a859 DD |
184 | u8 z; |
185 | ||
186 | /* | |
187 | * The length of the major axis of the ellipse of contact between | |
188 | * the finger and the panel (ABS_MT_TOUCH_MAJOR). | |
189 | */ | |
190 | u8 major_axis_len; | |
191 | ||
192 | /* | |
193 | * The length of the minor axis of the ellipse of contact between | |
194 | * the finger and the panel (ABS_MT_TOUCH_MINOR). | |
195 | */ | |
196 | u8 minor_axis_len; | |
197 | ||
198 | /* | |
199 | * The length of the major axis of the approaching tool. | |
200 | * (ABS_MT_WIDTH_MAJOR) | |
201 | */ | |
202 | u8 major_tool_len; | |
203 | ||
204 | /* | |
205 | * The length of the minor axis of the approaching tool. | |
206 | * (ABS_MT_WIDTH_MINOR) | |
207 | */ | |
208 | u8 minor_tool_len; | |
209 | ||
210 | /* | |
211 | * The angle between the panel vertical axis and | |
212 | * the major axis of the contact ellipse. This value is an 8-bit | |
213 | * signed integer. The range is -127 to +127 (corresponding to | |
214 | * -90 degree and +90 degree respectively). | |
215 | * The positive direction is clockwise from the vertical axis. | |
216 | * If the ellipse of contact degenerates into a circle, | |
217 | * orientation is reported as 0. | |
218 | */ | |
219 | u8 orientation; | |
220 | } __packed; | |
221 | ||
94897619 DD |
222 | struct cyapa_pip_report_data { |
223 | u8 report_head[PIP_TOUCH_REPORT_HEAD_SIZE]; | |
224 | struct cyapa_pip_touch_record touch_records[10]; | |
6972a859 DD |
225 | } __packed; |
226 | ||
5812d306 DD |
227 | struct cyapa_tsg_bin_image_head { |
228 | u8 head_size; /* Unit: bytes, including itself. */ | |
229 | u8 ttda_driver_major_version; /* Reserved as 0. */ | |
230 | u8 ttda_driver_minor_version; /* Reserved as 0. */ | |
231 | u8 fw_major_version; | |
232 | u8 fw_minor_version; | |
233 | u8 fw_revision_control_number[8]; | |
c2c06c41 DD |
234 | u8 silicon_id_hi; |
235 | u8 silicon_id_lo; | |
236 | u8 chip_revision; | |
237 | u8 family_id; | |
238 | u8 bl_ver_maj; | |
239 | u8 bl_ver_min; | |
5812d306 DD |
240 | } __packed; |
241 | ||
242 | struct cyapa_tsg_bin_image_data_record { | |
243 | u8 flash_array_id; | |
244 | __be16 row_number; | |
245 | /* The number of bytes of flash data contained in this record. */ | |
246 | __be16 record_len; | |
247 | /* The flash program data. */ | |
248 | u8 record_data[CYAPA_TSG_FW_ROW_SIZE]; | |
249 | } __packed; | |
250 | ||
251 | struct cyapa_tsg_bin_image { | |
252 | struct cyapa_tsg_bin_image_head image_head; | |
253 | struct cyapa_tsg_bin_image_data_record records[0]; | |
254 | } __packed; | |
255 | ||
94897619 | 256 | struct pip_bl_packet_start { |
5812d306 DD |
257 | u8 sop; /* Start of packet, must be 01h */ |
258 | u8 cmd_code; | |
259 | __le16 data_length; /* Size of data parameter start from data[0] */ | |
260 | } __packed; | |
261 | ||
94897619 | 262 | struct pip_bl_packet_end { |
5812d306 DD |
263 | __le16 crc; |
264 | u8 eop; /* End of packet, must be 17h */ | |
265 | } __packed; | |
266 | ||
94897619 | 267 | struct pip_bl_cmd_head { |
5812d306 DD |
268 | __le16 addr; /* Output report register address, must be 0004h */ |
269 | /* Size of packet not including output report register address */ | |
270 | __le16 length; | |
271 | u8 report_id; /* Bootloader output report id, must be 40h */ | |
272 | u8 rsvd; /* Reserved, must be 0 */ | |
94897619 | 273 | struct pip_bl_packet_start packet_start; |
5812d306 DD |
274 | u8 data[0]; /* Command data variable based on commands */ |
275 | } __packed; | |
276 | ||
277 | /* Initiate bootload command data structure. */ | |
94897619 | 278 | struct pip_bl_initiate_cmd_data { |
5812d306 DD |
279 | /* Key must be "A5h 01h 02h 03h FFh FEh FDh 5Ah" */ |
280 | u8 key[CYAPA_TSG_BL_KEY_SIZE]; | |
281 | u8 metadata_raw_parameter[CYAPA_TSG_FLASH_MAP_METADATA_SIZE]; | |
282 | __le16 metadata_crc; | |
283 | } __packed; | |
284 | ||
94897619 | 285 | struct tsg_bl_metadata_row_params { |
5812d306 | 286 | __le16 size; |
2be7256f | 287 | __le16 maximum_size; |
5812d306 DD |
288 | __le32 app_start; |
289 | __le16 app_len; | |
290 | __le16 app_crc; | |
291 | __le32 app_entry; | |
292 | __le32 upgrade_start; | |
293 | __le16 upgrade_len; | |
294 | __le16 entry_row_crc; | |
295 | u8 padding[36]; /* Padding data must be 0 */ | |
296 | __le16 metadata_crc; /* CRC starts at offset of 60 */ | |
297 | } __packed; | |
298 | ||
299 | /* Bootload program and verify row command data structure */ | |
94897619 | 300 | struct tsg_bl_flash_row_head { |
5812d306 DD |
301 | u8 flash_array_id; |
302 | __le16 flash_row_id; | |
303 | u8 flash_data[0]; | |
304 | } __packed; | |
305 | ||
94897619 | 306 | struct pip_app_cmd_head { |
6972a859 DD |
307 | __le16 addr; /* Output report register address, must be 0004h */ |
308 | /* Size of packet not including output report register address */ | |
309 | __le16 length; | |
310 | u8 report_id; /* Application output report id, must be 2Fh */ | |
311 | u8 rsvd; /* Reserved, must be 0 */ | |
312 | /* | |
313 | * Bit 7: reserved, must be 0. | |
314 | * Bit 6-0: command code. | |
315 | */ | |
316 | u8 cmd_code; | |
317 | u8 parameter_data[0]; /* Parameter data variable based on cmd_code */ | |
318 | } __packed; | |
319 | ||
7debcbb1 | 320 | /* Application get/set parameter command data structure */ |
6972a859 DD |
321 | struct gen5_app_set_parameter_data { |
322 | u8 parameter_id; | |
323 | u8 parameter_size; | |
324 | __le32 value; | |
325 | } __packed; | |
326 | ||
327 | struct gen5_app_get_parameter_data { | |
328 | u8 parameter_id; | |
329 | } __packed; | |
330 | ||
6499d390 DD |
331 | struct gen5_retrieve_panel_scan_data { |
332 | __le16 read_offset; | |
333 | __le16 read_elements; | |
334 | u8 data_id; | |
335 | } __packed; | |
336 | ||
94897619 DD |
337 | u8 pip_read_sys_info[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x02 }; |
338 | u8 pip_bl_read_app_info[] = { 0x04, 0x00, 0x0b, 0x00, 0x40, 0x00, | |
339 | 0x01, 0x3c, 0x00, 0x00, 0xb0, 0x42, 0x17 | |
340 | }; | |
5812d306 | 341 | |
94897619 | 342 | static u8 cyapa_pip_bl_cmd_key[] = { 0xa5, 0x01, 0x02, 0x03, |
5812d306 DD |
343 | 0xff, 0xfe, 0xfd, 0x5a }; |
344 | ||
3cd47869 DD |
345 | static int cyapa_pip_event_process(struct cyapa *cyapa, |
346 | struct cyapa_pip_report_data *report_data); | |
347 | ||
94897619 | 348 | int cyapa_pip_cmd_state_initialize(struct cyapa *cyapa) |
6972a859 | 349 | { |
94897619 | 350 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 | 351 | |
94897619 DD |
352 | init_completion(&pip->cmd_ready); |
353 | atomic_set(&pip->cmd_issued, 0); | |
354 | mutex_init(&pip->cmd_lock); | |
6972a859 | 355 | |
3cd47869 DD |
356 | mutex_init(&pip->pm_stage_lock); |
357 | pip->pm_stage = CYAPA_PM_DEACTIVE; | |
358 | ||
94897619 DD |
359 | pip->resp_sort_func = NULL; |
360 | pip->in_progress_cmd = PIP_INVALID_CMD; | |
361 | pip->resp_data = NULL; | |
362 | pip->resp_len = NULL; | |
6972a859 DD |
363 | |
364 | cyapa->dev_pwr_mode = UNINIT_PWR_MODE; | |
365 | cyapa->dev_sleep_time = UNINIT_SLEEP_TIME; | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
370 | /* Return negative errno, or else the number of bytes read. */ | |
94897619 | 371 | ssize_t cyapa_i2c_pip_read(struct cyapa *cyapa, u8 *buf, size_t size) |
6972a859 DD |
372 | { |
373 | int ret; | |
374 | ||
375 | if (size == 0) | |
376 | return 0; | |
377 | ||
378 | if (!buf || size > CYAPA_REG_MAP_SIZE) | |
379 | return -EINVAL; | |
380 | ||
381 | ret = i2c_master_recv(cyapa->client, buf, size); | |
382 | ||
383 | if (ret != size) | |
384 | return (ret < 0) ? ret : -EIO; | |
6972a859 DD |
385 | return size; |
386 | } | |
387 | ||
388 | /** | |
389 | * Return a negative errno code else zero on success. | |
390 | */ | |
94897619 | 391 | ssize_t cyapa_i2c_pip_write(struct cyapa *cyapa, u8 *buf, size_t size) |
6972a859 DD |
392 | { |
393 | int ret; | |
394 | ||
395 | if (!buf || !size) | |
396 | return -EINVAL; | |
397 | ||
398 | ret = i2c_master_send(cyapa->client, buf, size); | |
399 | ||
400 | if (ret != size) | |
401 | return (ret < 0) ? ret : -EIO; | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
3cd47869 DD |
406 | static void cyapa_set_pip_pm_state(struct cyapa *cyapa, |
407 | enum cyapa_pm_stage pm_stage) | |
408 | { | |
409 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; | |
410 | ||
411 | mutex_lock(&pip->pm_stage_lock); | |
412 | pip->pm_stage = pm_stage; | |
413 | mutex_unlock(&pip->pm_stage_lock); | |
414 | } | |
415 | ||
416 | static void cyapa_reset_pip_pm_state(struct cyapa *cyapa) | |
417 | { | |
418 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; | |
419 | ||
420 | /* Indicates the pip->pm_stage is not valid. */ | |
421 | mutex_lock(&pip->pm_stage_lock); | |
422 | pip->pm_stage = CYAPA_PM_DEACTIVE; | |
423 | mutex_unlock(&pip->pm_stage_lock); | |
424 | } | |
425 | ||
426 | static enum cyapa_pm_stage cyapa_get_pip_pm_state(struct cyapa *cyapa) | |
427 | { | |
428 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; | |
429 | enum cyapa_pm_stage pm_stage; | |
430 | ||
431 | mutex_lock(&pip->pm_stage_lock); | |
432 | pm_stage = pip->pm_stage; | |
433 | mutex_unlock(&pip->pm_stage_lock); | |
434 | ||
435 | return pm_stage; | |
436 | } | |
437 | ||
6972a859 DD |
438 | /** |
439 | * This function is aimed to dump all not read data in Gen5 trackpad | |
440 | * before send any command, otherwise, the interrupt line will be blocked. | |
441 | */ | |
94897619 | 442 | int cyapa_empty_pip_output_data(struct cyapa *cyapa, |
6972a859 DD |
443 | u8 *buf, int *len, cb_sort func) |
444 | { | |
3cd47869 | 445 | struct input_dev *input = cyapa->input; |
94897619 | 446 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
3cd47869 | 447 | enum cyapa_pm_stage pm_stage = cyapa_get_pip_pm_state(cyapa); |
6972a859 DD |
448 | int length; |
449 | int report_count; | |
450 | int empty_count; | |
451 | int buf_len; | |
452 | int error; | |
453 | ||
454 | buf_len = 0; | |
455 | if (len) { | |
456 | buf_len = (*len < CYAPA_REG_MAP_SIZE) ? | |
457 | *len : CYAPA_REG_MAP_SIZE; | |
458 | *len = 0; | |
459 | } | |
460 | ||
461 | report_count = 8; /* max 7 pending data before command response data */ | |
462 | empty_count = 0; | |
463 | do { | |
464 | /* | |
465 | * Depending on testing in cyapa driver, there are max 5 "02 00" | |
466 | * packets between two valid buffered data report in firmware. | |
467 | * So in order to dump all buffered data out and | |
468 | * make interrupt line release for reassert again, | |
469 | * we must set the empty_count check value bigger than 5 to | |
470 | * make it work. Otherwise, in some situation, | |
471 | * the interrupt line may unable to reactive again, | |
472 | * which will cause trackpad device unable to | |
473 | * report data any more. | |
474 | * for example, it may happen in EFT and ESD testing. | |
475 | */ | |
476 | if (empty_count > 5) | |
477 | return 0; | |
478 | ||
94897619 DD |
479 | error = cyapa_i2c_pip_read(cyapa, pip->empty_buf, |
480 | PIP_RESP_LENGTH_SIZE); | |
6972a859 DD |
481 | if (error < 0) |
482 | return error; | |
483 | ||
94897619 DD |
484 | length = get_unaligned_le16(pip->empty_buf); |
485 | if (length == PIP_RESP_LENGTH_SIZE) { | |
6972a859 DD |
486 | empty_count++; |
487 | continue; | |
488 | } else if (length > CYAPA_REG_MAP_SIZE) { | |
489 | /* Should not happen */ | |
490 | return -EINVAL; | |
491 | } else if (length == 0) { | |
492 | /* Application or bootloader launch data polled out. */ | |
94897619 | 493 | length = PIP_RESP_LENGTH_SIZE; |
6972a859 | 494 | if (buf && buf_len && func && |
94897619 | 495 | func(cyapa, pip->empty_buf, length)) { |
6972a859 | 496 | length = min(buf_len, length); |
94897619 | 497 | memcpy(buf, pip->empty_buf, length); |
6972a859 DD |
498 | *len = length; |
499 | /* Response found, success. */ | |
500 | return 0; | |
501 | } | |
502 | continue; | |
503 | } | |
504 | ||
94897619 | 505 | error = cyapa_i2c_pip_read(cyapa, pip->empty_buf, length); |
6972a859 DD |
506 | if (error < 0) |
507 | return error; | |
508 | ||
509 | report_count--; | |
510 | empty_count = 0; | |
94897619 DD |
511 | length = get_unaligned_le16(pip->empty_buf); |
512 | if (length <= PIP_RESP_LENGTH_SIZE) { | |
6972a859 DD |
513 | empty_count++; |
514 | } else if (buf && buf_len && func && | |
94897619 | 515 | func(cyapa, pip->empty_buf, length)) { |
6972a859 | 516 | length = min(buf_len, length); |
94897619 | 517 | memcpy(buf, pip->empty_buf, length); |
6972a859 DD |
518 | *len = length; |
519 | /* Response found, success. */ | |
520 | return 0; | |
3cd47869 DD |
521 | } else if (cyapa->operational && input && input->users && |
522 | (pm_stage == CYAPA_PM_RUNTIME_RESUME || | |
523 | pm_stage == CYAPA_PM_RUNTIME_SUSPEND)) { | |
524 | /* Parse the data and report it if it's valid. */ | |
525 | cyapa_pip_event_process(cyapa, | |
526 | (struct cyapa_pip_report_data *)pip->empty_buf); | |
6972a859 DD |
527 | } |
528 | ||
529 | error = -EINVAL; | |
530 | } while (report_count); | |
531 | ||
532 | return error; | |
533 | } | |
534 | ||
535 | static int cyapa_do_i2c_pip_cmd_irq_sync( | |
536 | struct cyapa *cyapa, | |
537 | u8 *cmd, size_t cmd_len, | |
538 | unsigned long timeout) | |
539 | { | |
94897619 | 540 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 DD |
541 | int error; |
542 | ||
543 | /* Wait for interrupt to set ready completion */ | |
94897619 | 544 | init_completion(&pip->cmd_ready); |
6972a859 | 545 | |
94897619 | 546 | atomic_inc(&pip->cmd_issued); |
6972a859 DD |
547 | error = cyapa_i2c_pip_write(cyapa, cmd, cmd_len); |
548 | if (error) { | |
94897619 | 549 | atomic_dec(&pip->cmd_issued); |
6972a859 DD |
550 | return (error < 0) ? error : -EIO; |
551 | } | |
552 | ||
553 | /* Wait for interrupt to indicate command is completed. */ | |
94897619 | 554 | timeout = wait_for_completion_timeout(&pip->cmd_ready, |
6972a859 DD |
555 | msecs_to_jiffies(timeout)); |
556 | if (timeout == 0) { | |
94897619 | 557 | atomic_dec(&pip->cmd_issued); |
6972a859 DD |
558 | return -ETIMEDOUT; |
559 | } | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | static int cyapa_do_i2c_pip_cmd_polling( | |
565 | struct cyapa *cyapa, | |
566 | u8 *cmd, size_t cmd_len, | |
567 | u8 *resp_data, int *resp_len, | |
568 | unsigned long timeout, | |
569 | cb_sort func) | |
570 | { | |
94897619 | 571 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 DD |
572 | int tries; |
573 | int length; | |
574 | int error; | |
575 | ||
94897619 | 576 | atomic_inc(&pip->cmd_issued); |
6972a859 DD |
577 | error = cyapa_i2c_pip_write(cyapa, cmd, cmd_len); |
578 | if (error) { | |
94897619 | 579 | atomic_dec(&pip->cmd_issued); |
6972a859 DD |
580 | return error < 0 ? error : -EIO; |
581 | } | |
582 | ||
583 | length = resp_len ? *resp_len : 0; | |
584 | if (resp_data && resp_len && length != 0 && func) { | |
585 | tries = timeout / 5; | |
586 | do { | |
587 | usleep_range(3000, 5000); | |
588 | *resp_len = length; | |
589 | error = cyapa_empty_pip_output_data(cyapa, | |
590 | resp_data, resp_len, func); | |
591 | if (error || *resp_len == 0) | |
592 | continue; | |
593 | else | |
594 | break; | |
595 | } while (--tries > 0); | |
596 | if ((error || *resp_len == 0) || tries <= 0) | |
597 | error = error ? error : -ETIMEDOUT; | |
598 | } | |
599 | ||
94897619 | 600 | atomic_dec(&pip->cmd_issued); |
6972a859 DD |
601 | return error; |
602 | } | |
603 | ||
94897619 | 604 | int cyapa_i2c_pip_cmd_irq_sync( |
6972a859 DD |
605 | struct cyapa *cyapa, |
606 | u8 *cmd, int cmd_len, | |
607 | u8 *resp_data, int *resp_len, | |
608 | unsigned long timeout, | |
609 | cb_sort func, | |
610 | bool irq_mode) | |
611 | { | |
94897619 | 612 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 DD |
613 | int error; |
614 | ||
615 | if (!cmd || !cmd_len) | |
616 | return -EINVAL; | |
617 | ||
618 | /* Commands must be serialized. */ | |
94897619 | 619 | error = mutex_lock_interruptible(&pip->cmd_lock); |
6972a859 DD |
620 | if (error) |
621 | return error; | |
622 | ||
94897619 DD |
623 | pip->resp_sort_func = func; |
624 | pip->resp_data = resp_data; | |
625 | pip->resp_len = resp_len; | |
6972a859 | 626 | |
94897619 DD |
627 | if (cmd_len >= PIP_MIN_APP_CMD_LENGTH && |
628 | cmd[4] == PIP_APP_CMD_REPORT_ID) { | |
6972a859 | 629 | /* Application command */ |
94897619 DD |
630 | pip->in_progress_cmd = cmd[6] & 0x7f; |
631 | } else if (cmd_len >= PIP_MIN_BL_CMD_LENGTH && | |
632 | cmd[4] == PIP_BL_CMD_REPORT_ID) { | |
6972a859 | 633 | /* Bootloader command */ |
94897619 | 634 | pip->in_progress_cmd = cmd[7]; |
6972a859 DD |
635 | } |
636 | ||
637 | /* Send command data, wait and read output response data's length. */ | |
638 | if (irq_mode) { | |
94897619 | 639 | pip->is_irq_mode = true; |
6972a859 DD |
640 | error = cyapa_do_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, |
641 | timeout); | |
642 | if (error == -ETIMEDOUT && resp_data && | |
643 | resp_len && *resp_len != 0 && func) { | |
644 | /* | |
645 | * For some old version, there was no interrupt for | |
646 | * the command response data, so need to poll here | |
647 | * to try to get the response data. | |
648 | */ | |
649 | error = cyapa_empty_pip_output_data(cyapa, | |
650 | resp_data, resp_len, func); | |
651 | if (error || *resp_len == 0) | |
652 | error = error ? error : -ETIMEDOUT; | |
653 | } | |
654 | } else { | |
94897619 | 655 | pip->is_irq_mode = false; |
6972a859 DD |
656 | error = cyapa_do_i2c_pip_cmd_polling(cyapa, cmd, cmd_len, |
657 | resp_data, resp_len, timeout, func); | |
658 | } | |
659 | ||
94897619 DD |
660 | pip->resp_sort_func = NULL; |
661 | pip->resp_data = NULL; | |
662 | pip->resp_len = NULL; | |
663 | pip->in_progress_cmd = PIP_INVALID_CMD; | |
6972a859 | 664 | |
94897619 | 665 | mutex_unlock(&pip->cmd_lock); |
6972a859 DD |
666 | return error; |
667 | } | |
668 | ||
94897619 | 669 | bool cyapa_sort_tsg_pip_bl_resp_data(struct cyapa *cyapa, |
6972a859 DD |
670 | u8 *data, int len) |
671 | { | |
94897619 | 672 | if (!data || len < PIP_MIN_BL_RESP_LENGTH) |
6972a859 DD |
673 | return false; |
674 | ||
675 | /* Bootloader input report id 30h */ | |
94897619 DD |
676 | if (data[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID && |
677 | data[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY && | |
678 | data[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY) | |
6972a859 DD |
679 | return true; |
680 | ||
681 | return false; | |
682 | } | |
683 | ||
94897619 | 684 | bool cyapa_sort_tsg_pip_app_resp_data(struct cyapa *cyapa, |
6972a859 DD |
685 | u8 *data, int len) |
686 | { | |
94897619 | 687 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 DD |
688 | int resp_len; |
689 | ||
94897619 | 690 | if (!data || len < PIP_MIN_APP_RESP_LENGTH) |
6972a859 DD |
691 | return false; |
692 | ||
94897619 DD |
693 | if (data[PIP_RESP_REPORT_ID_OFFSET] == PIP_APP_RESP_REPORT_ID && |
694 | data[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY) { | |
695 | resp_len = get_unaligned_le16(&data[PIP_RESP_LENGTH_OFFSET]); | |
696 | if (GET_PIP_CMD_CODE(data[PIP_RESP_APP_CMD_OFFSET]) == 0x00 && | |
697 | resp_len == PIP_UNSUPPORTED_CMD_RESP_LENGTH && | |
698 | data[5] == pip->in_progress_cmd) { | |
6972a859 DD |
699 | /* Unsupported command code */ |
700 | return false; | |
94897619 DD |
701 | } else if (GET_PIP_CMD_CODE(data[PIP_RESP_APP_CMD_OFFSET]) == |
702 | pip->in_progress_cmd) { | |
6972a859 DD |
703 | /* Correct command response received */ |
704 | return true; | |
705 | } | |
706 | } | |
707 | ||
708 | return false; | |
709 | } | |
710 | ||
94897619 | 711 | static bool cyapa_sort_pip_application_launch_data(struct cyapa *cyapa, |
5812d306 DD |
712 | u8 *buf, int len) |
713 | { | |
94897619 | 714 | if (buf == NULL || len < PIP_RESP_LENGTH_SIZE) |
5812d306 DD |
715 | return false; |
716 | ||
717 | /* | |
718 | * After reset or power on, trackpad device always sets to 0x00 0x00 | |
719 | * to indicate a reset or power on event. | |
720 | */ | |
721 | if (buf[0] == 0 && buf[1] == 0) | |
722 | return true; | |
723 | ||
724 | return false; | |
725 | } | |
726 | ||
94897619 | 727 | static bool cyapa_sort_gen5_hid_descriptor_data(struct cyapa *cyapa, |
6972a859 DD |
728 | u8 *buf, int len) |
729 | { | |
730 | int resp_len; | |
731 | int max_output_len; | |
732 | ||
733 | /* Check hid descriptor. */ | |
94897619 | 734 | if (len != PIP_HID_DESCRIPTOR_SIZE) |
6972a859 DD |
735 | return false; |
736 | ||
94897619 | 737 | resp_len = get_unaligned_le16(&buf[PIP_RESP_LENGTH_OFFSET]); |
6972a859 | 738 | max_output_len = get_unaligned_le16(&buf[16]); |
94897619 DD |
739 | if (resp_len == PIP_HID_DESCRIPTOR_SIZE) { |
740 | if (buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID && | |
6972a859 DD |
741 | max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) { |
742 | /* BL mode HID Descriptor */ | |
743 | return true; | |
94897619 DD |
744 | } else if ((buf[PIP_RESP_REPORT_ID_OFFSET] == |
745 | PIP_HID_APP_REPORT_ID) && | |
6972a859 DD |
746 | max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) { |
747 | /* APP mode HID Descriptor */ | |
748 | return true; | |
749 | } | |
750 | } | |
751 | ||
752 | return false; | |
753 | } | |
754 | ||
94897619 | 755 | static bool cyapa_sort_pip_deep_sleep_data(struct cyapa *cyapa, |
6972a859 DD |
756 | u8 *buf, int len) |
757 | { | |
94897619 DD |
758 | if (len == PIP_DEEP_SLEEP_RESP_LENGTH && |
759 | buf[PIP_RESP_REPORT_ID_OFFSET] == | |
760 | PIP_APP_DEEP_SLEEP_REPORT_ID && | |
761 | (buf[4] & PIP_DEEP_SLEEP_OPCODE_MASK) == | |
762 | PIP_DEEP_SLEEP_OPCODE) | |
6972a859 DD |
763 | return true; |
764 | return false; | |
765 | } | |
766 | ||
767 | static int gen5_idle_state_parse(struct cyapa *cyapa) | |
768 | { | |
94897619 | 769 | u8 resp_data[PIP_HID_DESCRIPTOR_SIZE]; |
6972a859 DD |
770 | int max_output_len; |
771 | int length; | |
772 | u8 cmd[2]; | |
773 | int ret; | |
774 | int error; | |
775 | ||
776 | /* | |
777 | * Dump all buffered data firstly for the situation | |
778 | * when the trackpad is just power on the cyapa go here. | |
779 | */ | |
780 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
781 | ||
782 | memset(resp_data, 0, sizeof(resp_data)); | |
783 | ret = cyapa_i2c_pip_read(cyapa, resp_data, 3); | |
784 | if (ret != 3) | |
785 | return ret < 0 ? ret : -EIO; | |
786 | ||
94897619 DD |
787 | length = get_unaligned_le16(&resp_data[PIP_RESP_LENGTH_OFFSET]); |
788 | if (length == PIP_RESP_LENGTH_SIZE) { | |
789 | /* Normal state of Gen5 with no data to response */ | |
6972a859 DD |
790 | cyapa->gen = CYAPA_GEN5; |
791 | ||
792 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
793 | ||
794 | /* Read description from trackpad device */ | |
795 | cmd[0] = 0x01; | |
796 | cmd[1] = 0x00; | |
94897619 | 797 | length = PIP_HID_DESCRIPTOR_SIZE; |
6972a859 | 798 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, |
94897619 | 799 | cmd, PIP_RESP_LENGTH_SIZE, |
6972a859 DD |
800 | resp_data, &length, |
801 | 300, | |
94897619 | 802 | cyapa_sort_gen5_hid_descriptor_data, |
6972a859 DD |
803 | false); |
804 | if (error) | |
805 | return error; | |
806 | ||
807 | length = get_unaligned_le16( | |
94897619 | 808 | &resp_data[PIP_RESP_LENGTH_OFFSET]); |
6972a859 | 809 | max_output_len = get_unaligned_le16(&resp_data[16]); |
94897619 DD |
810 | if ((length == PIP_HID_DESCRIPTOR_SIZE || |
811 | length == PIP_RESP_LENGTH_SIZE) && | |
812 | (resp_data[PIP_RESP_REPORT_ID_OFFSET] == | |
813 | PIP_HID_BL_REPORT_ID) && | |
6972a859 DD |
814 | max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) { |
815 | /* BL mode HID Description read */ | |
816 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
94897619 DD |
817 | } else if ((length == PIP_HID_DESCRIPTOR_SIZE || |
818 | length == PIP_RESP_LENGTH_SIZE) && | |
819 | (resp_data[PIP_RESP_REPORT_ID_OFFSET] == | |
820 | PIP_HID_APP_REPORT_ID) && | |
6972a859 DD |
821 | max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) { |
822 | /* APP mode HID Description read */ | |
823 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
824 | } else { | |
825 | /* Should not happen!!! */ | |
826 | cyapa->state = CYAPA_STATE_NO_DEVICE; | |
827 | } | |
828 | } | |
829 | ||
830 | return 0; | |
831 | } | |
832 | ||
833 | static int gen5_hid_description_header_parse(struct cyapa *cyapa, u8 *reg_data) | |
834 | { | |
835 | int length; | |
836 | u8 resp_data[32]; | |
837 | int max_output_len; | |
838 | int ret; | |
839 | ||
840 | /* 0x20 0x00 0xF7 is Gen5 Application HID Description Header; | |
7debcbb1 | 841 | * 0x20 0x00 0xFF is Gen5 Bootloader HID Description Header. |
6972a859 DD |
842 | * |
843 | * Must read HID Description content through out, | |
844 | * otherwise Gen5 trackpad cannot response next command | |
845 | * or report any touch or button data. | |
846 | */ | |
847 | ret = cyapa_i2c_pip_read(cyapa, resp_data, | |
94897619 DD |
848 | PIP_HID_DESCRIPTOR_SIZE); |
849 | if (ret != PIP_HID_DESCRIPTOR_SIZE) | |
6972a859 | 850 | return ret < 0 ? ret : -EIO; |
94897619 | 851 | length = get_unaligned_le16(&resp_data[PIP_RESP_LENGTH_OFFSET]); |
6972a859 | 852 | max_output_len = get_unaligned_le16(&resp_data[16]); |
94897619 DD |
853 | if (length == PIP_RESP_LENGTH_SIZE) { |
854 | if (reg_data[PIP_RESP_REPORT_ID_OFFSET] == | |
855 | PIP_HID_BL_REPORT_ID) { | |
6972a859 DD |
856 | /* |
857 | * BL mode HID Description has been previously | |
858 | * read out. | |
859 | */ | |
860 | cyapa->gen = CYAPA_GEN5; | |
861 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
862 | } else { | |
863 | /* | |
864 | * APP mode HID Description has been previously | |
865 | * read out. | |
866 | */ | |
867 | cyapa->gen = CYAPA_GEN5; | |
868 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
869 | } | |
94897619 DD |
870 | } else if (length == PIP_HID_DESCRIPTOR_SIZE && |
871 | resp_data[2] == PIP_HID_BL_REPORT_ID && | |
6972a859 DD |
872 | max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) { |
873 | /* BL mode HID Description read. */ | |
874 | cyapa->gen = CYAPA_GEN5; | |
875 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
94897619 DD |
876 | } else if (length == PIP_HID_DESCRIPTOR_SIZE && |
877 | (resp_data[PIP_RESP_REPORT_ID_OFFSET] == | |
878 | PIP_HID_APP_REPORT_ID) && | |
6972a859 DD |
879 | max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) { |
880 | /* APP mode HID Description read. */ | |
881 | cyapa->gen = CYAPA_GEN5; | |
882 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
883 | } else { | |
884 | /* Should not happen!!! */ | |
885 | cyapa->state = CYAPA_STATE_NO_DEVICE; | |
886 | } | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
891 | static int gen5_report_data_header_parse(struct cyapa *cyapa, u8 *reg_data) | |
892 | { | |
893 | int length; | |
894 | ||
94897619 DD |
895 | length = get_unaligned_le16(®_data[PIP_RESP_LENGTH_OFFSET]); |
896 | switch (reg_data[PIP_RESP_REPORT_ID_OFFSET]) { | |
897 | case PIP_TOUCH_REPORT_ID: | |
898 | if (length < PIP_TOUCH_REPORT_HEAD_SIZE || | |
899 | length > PIP_TOUCH_REPORT_MAX_SIZE) | |
6972a859 DD |
900 | return -EINVAL; |
901 | break; | |
94897619 | 902 | case PIP_BTN_REPORT_ID: |
6972a859 | 903 | case GEN5_OLD_PUSH_BTN_REPORT_ID: |
94897619 DD |
904 | case PIP_PUSH_BTN_REPORT_ID: |
905 | if (length < PIP_BTN_REPORT_HEAD_SIZE || | |
906 | length > PIP_BTN_REPORT_MAX_SIZE) | |
6972a859 DD |
907 | return -EINVAL; |
908 | break; | |
94897619 DD |
909 | case PIP_WAKEUP_EVENT_REPORT_ID: |
910 | if (length != PIP_WAKEUP_EVENT_SIZE) | |
6972a859 DD |
911 | return -EINVAL; |
912 | break; | |
913 | default: | |
914 | return -EINVAL; | |
915 | } | |
916 | ||
917 | cyapa->gen = CYAPA_GEN5; | |
918 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
919 | return 0; | |
920 | } | |
921 | ||
922 | static int gen5_cmd_resp_header_parse(struct cyapa *cyapa, u8 *reg_data) | |
923 | { | |
94897619 | 924 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 DD |
925 | int length; |
926 | int ret; | |
927 | ||
928 | /* | |
929 | * Must read report data through out, | |
930 | * otherwise Gen5 trackpad cannot response next command | |
931 | * or report any touch or button data. | |
932 | */ | |
94897619 DD |
933 | length = get_unaligned_le16(®_data[PIP_RESP_LENGTH_OFFSET]); |
934 | ret = cyapa_i2c_pip_read(cyapa, pip->empty_buf, length); | |
6972a859 DD |
935 | if (ret != length) |
936 | return ret < 0 ? ret : -EIO; | |
937 | ||
94897619 | 938 | if (length == PIP_RESP_LENGTH_SIZE) { |
6972a859 | 939 | /* Previous command has read the data through out. */ |
94897619 DD |
940 | if (reg_data[PIP_RESP_REPORT_ID_OFFSET] == |
941 | PIP_BL_RESP_REPORT_ID) { | |
6972a859 DD |
942 | /* Gen5 BL command response data detected */ |
943 | cyapa->gen = CYAPA_GEN5; | |
944 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
945 | } else { | |
946 | /* Gen5 APP command response data detected */ | |
947 | cyapa->gen = CYAPA_GEN5; | |
948 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
949 | } | |
94897619 DD |
950 | } else if ((pip->empty_buf[PIP_RESP_REPORT_ID_OFFSET] == |
951 | PIP_BL_RESP_REPORT_ID) && | |
952 | (pip->empty_buf[PIP_RESP_RSVD_OFFSET] == | |
953 | PIP_RESP_RSVD_KEY) && | |
954 | (pip->empty_buf[PIP_RESP_BL_SOP_OFFSET] == | |
955 | PIP_SOP_KEY) && | |
956 | (pip->empty_buf[length - 1] == | |
957 | PIP_EOP_KEY)) { | |
6972a859 DD |
958 | /* Gen5 BL command response data detected */ |
959 | cyapa->gen = CYAPA_GEN5; | |
960 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
94897619 DD |
961 | } else if (pip->empty_buf[PIP_RESP_REPORT_ID_OFFSET] == |
962 | PIP_APP_RESP_REPORT_ID && | |
963 | pip->empty_buf[PIP_RESP_RSVD_OFFSET] == | |
964 | PIP_RESP_RSVD_KEY) { | |
6972a859 DD |
965 | /* Gen5 APP command response data detected */ |
966 | cyapa->gen = CYAPA_GEN5; | |
967 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
968 | } else { | |
969 | /* Should not happen!!! */ | |
970 | cyapa->state = CYAPA_STATE_NO_DEVICE; | |
971 | } | |
972 | ||
973 | return 0; | |
974 | } | |
975 | ||
976 | static int cyapa_gen5_state_parse(struct cyapa *cyapa, u8 *reg_data, int len) | |
977 | { | |
978 | int length; | |
979 | ||
980 | if (!reg_data || len < 3) | |
981 | return -EINVAL; | |
982 | ||
983 | cyapa->state = CYAPA_STATE_NO_DEVICE; | |
984 | ||
985 | /* Parse based on Gen5 characteristic registers and bits */ | |
94897619 DD |
986 | length = get_unaligned_le16(®_data[PIP_RESP_LENGTH_OFFSET]); |
987 | if (length == 0 || length == PIP_RESP_LENGTH_SIZE) { | |
6972a859 | 988 | gen5_idle_state_parse(cyapa); |
94897619 DD |
989 | } else if (length == PIP_HID_DESCRIPTOR_SIZE && |
990 | (reg_data[2] == PIP_HID_BL_REPORT_ID || | |
991 | reg_data[2] == PIP_HID_APP_REPORT_ID)) { | |
6972a859 DD |
992 | gen5_hid_description_header_parse(cyapa, reg_data); |
993 | } else if ((length == GEN5_APP_REPORT_DESCRIPTOR_SIZE || | |
994 | length == GEN5_APP_CONTRACT_REPORT_DESCRIPTOR_SIZE) && | |
995 | reg_data[2] == GEN5_APP_REPORT_DESCRIPTOR_ID) { | |
996 | /* 0xEE 0x00 0xF6 is Gen5 APP report description header. */ | |
997 | cyapa->gen = CYAPA_GEN5; | |
998 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
999 | } else if (length == GEN5_BL_REPORT_DESCRIPTOR_SIZE && | |
1000 | reg_data[2] == GEN5_BL_REPORT_DESCRIPTOR_ID) { | |
94897619 | 1001 | /* 0x1D 0x00 0xFE is Gen5 BL report descriptor header. */ |
6972a859 DD |
1002 | cyapa->gen = CYAPA_GEN5; |
1003 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
94897619 DD |
1004 | } else if (reg_data[2] == PIP_TOUCH_REPORT_ID || |
1005 | reg_data[2] == PIP_BTN_REPORT_ID || | |
6972a859 | 1006 | reg_data[2] == GEN5_OLD_PUSH_BTN_REPORT_ID || |
94897619 DD |
1007 | reg_data[2] == PIP_PUSH_BTN_REPORT_ID || |
1008 | reg_data[2] == PIP_WAKEUP_EVENT_REPORT_ID) { | |
6972a859 | 1009 | gen5_report_data_header_parse(cyapa, reg_data); |
94897619 DD |
1010 | } else if (reg_data[2] == PIP_BL_RESP_REPORT_ID || |
1011 | reg_data[2] == PIP_APP_RESP_REPORT_ID) { | |
6972a859 DD |
1012 | gen5_cmd_resp_header_parse(cyapa, reg_data); |
1013 | } | |
1014 | ||
1015 | if (cyapa->gen == CYAPA_GEN5) { | |
1016 | /* | |
1017 | * Must read the content (e.g.: report description and so on) | |
1018 | * from trackpad device throughout. Otherwise, | |
1019 | * Gen5 trackpad cannot response to next command or | |
1020 | * report any touch or button data later. | |
1021 | */ | |
1022 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1023 | ||
1024 | if (cyapa->state == CYAPA_STATE_GEN5_APP || | |
1025 | cyapa->state == CYAPA_STATE_GEN5_BL) | |
1026 | return 0; | |
1027 | } | |
1028 | ||
1029 | return -EAGAIN; | |
1030 | } | |
1031 | ||
94897619 DD |
1032 | static struct cyapa_tsg_bin_image_data_record * |
1033 | cyapa_get_image_record_data_num(const struct firmware *fw, | |
1034 | int *record_num) | |
1035 | { | |
1036 | int head_size; | |
1037 | ||
1038 | head_size = fw->data[0] + 1; | |
1039 | *record_num = (fw->size - head_size) / | |
1040 | sizeof(struct cyapa_tsg_bin_image_data_record); | |
1041 | return (struct cyapa_tsg_bin_image_data_record *)&fw->data[head_size]; | |
1042 | } | |
1043 | ||
1044 | int cyapa_pip_bl_initiate(struct cyapa *cyapa, const struct firmware *fw) | |
5812d306 | 1045 | { |
94897619 DD |
1046 | struct cyapa_tsg_bin_image_data_record *image_records; |
1047 | struct pip_bl_cmd_head *bl_cmd_head; | |
1048 | struct pip_bl_packet_start *bl_packet_start; | |
1049 | struct pip_bl_initiate_cmd_data *cmd_data; | |
1050 | struct pip_bl_packet_end *bl_packet_end; | |
5812d306 DD |
1051 | u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; |
1052 | int cmd_len; | |
1053 | u16 cmd_data_len; | |
1054 | u16 cmd_crc = 0; | |
1055 | u16 meta_data_crc = 0; | |
1056 | u8 resp_data[11]; | |
1057 | int resp_len; | |
1058 | int records_num; | |
1059 | u8 *data; | |
1060 | int error; | |
1061 | ||
1062 | /* Try to dump all buffered report data before any send command. */ | |
1063 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1064 | ||
1065 | memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); | |
94897619 | 1066 | bl_cmd_head = (struct pip_bl_cmd_head *)cmd; |
5812d306 | 1067 | cmd_data_len = CYAPA_TSG_BL_KEY_SIZE + CYAPA_TSG_FLASH_MAP_BLOCK_SIZE; |
94897619 DD |
1068 | cmd_len = sizeof(struct pip_bl_cmd_head) + cmd_data_len + |
1069 | sizeof(struct pip_bl_packet_end); | |
5812d306 | 1070 | |
94897619 | 1071 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr); |
5812d306 | 1072 | put_unaligned_le16(cmd_len - 2, &bl_cmd_head->length); |
94897619 | 1073 | bl_cmd_head->report_id = PIP_BL_CMD_REPORT_ID; |
5812d306 DD |
1074 | |
1075 | bl_packet_start = &bl_cmd_head->packet_start; | |
94897619 DD |
1076 | bl_packet_start->sop = PIP_SOP_KEY; |
1077 | bl_packet_start->cmd_code = PIP_BL_CMD_INITIATE_BL; | |
5812d306 DD |
1078 | /* 8 key bytes and 128 bytes block size */ |
1079 | put_unaligned_le16(cmd_data_len, &bl_packet_start->data_length); | |
1080 | ||
94897619 DD |
1081 | cmd_data = (struct pip_bl_initiate_cmd_data *)bl_cmd_head->data; |
1082 | memcpy(cmd_data->key, cyapa_pip_bl_cmd_key, CYAPA_TSG_BL_KEY_SIZE); | |
1083 | ||
1084 | image_records = cyapa_get_image_record_data_num(fw, &records_num); | |
5812d306 | 1085 | |
5812d306 | 1086 | /* APP_INTEGRITY row is always the last row block */ |
94897619 | 1087 | data = image_records[records_num - 1].record_data; |
5812d306 DD |
1088 | memcpy(cmd_data->metadata_raw_parameter, data, |
1089 | CYAPA_TSG_FLASH_MAP_METADATA_SIZE); | |
1090 | ||
1091 | meta_data_crc = crc_itu_t(0xffff, cmd_data->metadata_raw_parameter, | |
1092 | CYAPA_TSG_FLASH_MAP_METADATA_SIZE); | |
1093 | put_unaligned_le16(meta_data_crc, &cmd_data->metadata_crc); | |
1094 | ||
94897619 | 1095 | bl_packet_end = (struct pip_bl_packet_end *)(bl_cmd_head->data + |
5812d306 DD |
1096 | cmd_data_len); |
1097 | cmd_crc = crc_itu_t(0xffff, (u8 *)bl_packet_start, | |
94897619 | 1098 | sizeof(struct pip_bl_packet_start) + cmd_data_len); |
5812d306 | 1099 | put_unaligned_le16(cmd_crc, &bl_packet_end->crc); |
94897619 | 1100 | bl_packet_end->eop = PIP_EOP_KEY; |
5812d306 DD |
1101 | |
1102 | resp_len = sizeof(resp_data); | |
1103 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
1104 | cmd, cmd_len, | |
1105 | resp_data, &resp_len, 12000, | |
94897619 DD |
1106 | cyapa_sort_tsg_pip_bl_resp_data, true); |
1107 | if (error || resp_len != PIP_BL_INITIATE_RESP_LEN || | |
1108 | resp_data[2] != PIP_BL_RESP_REPORT_ID || | |
1109 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) | |
5812d306 DD |
1110 | return error ? error : -EAGAIN; |
1111 | ||
1112 | return 0; | |
1113 | } | |
1114 | ||
94897619 | 1115 | static bool cyapa_sort_pip_bl_exit_data(struct cyapa *cyapa, u8 *buf, int len) |
6972a859 | 1116 | { |
94897619 | 1117 | if (buf == NULL || len < PIP_RESP_LENGTH_SIZE) |
6972a859 DD |
1118 | return false; |
1119 | ||
1120 | if (buf[0] == 0 && buf[1] == 0) | |
1121 | return true; | |
1122 | ||
1123 | /* Exit bootloader failed for some reason. */ | |
94897619 DD |
1124 | if (len == PIP_BL_FAIL_EXIT_RESP_LEN && |
1125 | buf[PIP_RESP_REPORT_ID_OFFSET] == | |
1126 | PIP_BL_RESP_REPORT_ID && | |
1127 | buf[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY && | |
1128 | buf[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY && | |
1129 | buf[10] == PIP_EOP_KEY) | |
6972a859 DD |
1130 | return true; |
1131 | ||
1132 | return false; | |
1133 | } | |
1134 | ||
94897619 | 1135 | int cyapa_pip_bl_exit(struct cyapa *cyapa) |
6972a859 DD |
1136 | { |
1137 | ||
1138 | u8 bl_gen5_bl_exit[] = { 0x04, 0x00, | |
1139 | 0x0B, 0x00, 0x40, 0x00, 0x01, 0x3b, 0x00, 0x00, | |
1140 | 0x20, 0xc7, 0x17 | |
1141 | }; | |
1142 | u8 resp_data[11]; | |
1143 | int resp_len; | |
1144 | int error; | |
1145 | ||
1146 | resp_len = sizeof(resp_data); | |
1147 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
1148 | bl_gen5_bl_exit, sizeof(bl_gen5_bl_exit), | |
1149 | resp_data, &resp_len, | |
94897619 | 1150 | 5000, cyapa_sort_pip_bl_exit_data, false); |
6972a859 DD |
1151 | if (error) |
1152 | return error; | |
1153 | ||
94897619 DD |
1154 | if (resp_len == PIP_BL_FAIL_EXIT_RESP_LEN || |
1155 | resp_data[PIP_RESP_REPORT_ID_OFFSET] == | |
1156 | PIP_BL_RESP_REPORT_ID) | |
6972a859 DD |
1157 | return -EAGAIN; |
1158 | ||
1159 | if (resp_data[0] == 0x00 && resp_data[1] == 0x00) | |
1160 | return 0; | |
1161 | ||
1162 | return -ENODEV; | |
1163 | } | |
1164 | ||
94897619 | 1165 | int cyapa_pip_bl_enter(struct cyapa *cyapa) |
5812d306 DD |
1166 | { |
1167 | u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2F, 0x00, 0x01 }; | |
1168 | u8 resp_data[2]; | |
1169 | int resp_len; | |
1170 | int error; | |
1171 | ||
1172 | error = cyapa_poll_state(cyapa, 500); | |
1173 | if (error < 0) | |
1174 | return error; | |
5812d306 | 1175 | |
94897619 DD |
1176 | /* Already in bootloader mode, Skipping exit. */ |
1177 | if (cyapa_is_pip_bl_mode(cyapa)) | |
5812d306 | 1178 | return 0; |
94897619 DD |
1179 | else if (!cyapa_is_pip_app_mode(cyapa)) |
1180 | return -EINVAL; | |
5812d306 DD |
1181 | |
1182 | /* Try to dump all buffered report data before any send command. */ | |
1183 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1184 | ||
1185 | /* | |
1186 | * Send bootloader enter command to trackpad device, | |
1187 | * after enter bootloader, the response data is two bytes of 0x00 0x00. | |
1188 | */ | |
1189 | resp_len = sizeof(resp_data); | |
1190 | memset(resp_data, 0, resp_len); | |
1191 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
1192 | cmd, sizeof(cmd), | |
1193 | resp_data, &resp_len, | |
94897619 | 1194 | 5000, cyapa_sort_pip_application_launch_data, |
5812d306 DD |
1195 | true); |
1196 | if (error || resp_data[0] != 0x00 || resp_data[1] != 0x00) | |
1197 | return error < 0 ? error : -EAGAIN; | |
1198 | ||
1199 | cyapa->operational = false; | |
94897619 DD |
1200 | if (cyapa->gen == CYAPA_GEN5) |
1201 | cyapa->state = CYAPA_STATE_GEN5_BL; | |
c2c06c41 DD |
1202 | else if (cyapa->gen == CYAPA_GEN6) |
1203 | cyapa->state = CYAPA_STATE_GEN6_BL; | |
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | static int cyapa_pip_fw_head_check(struct cyapa *cyapa, | |
1208 | struct cyapa_tsg_bin_image_head *image_head) | |
1209 | { | |
1210 | if (image_head->head_size != 0x0C && image_head->head_size != 0x12) | |
1211 | return -EINVAL; | |
1212 | ||
1213 | switch (cyapa->gen) { | |
1214 | case CYAPA_GEN6: | |
1215 | if (image_head->family_id != 0x9B || | |
1216 | image_head->silicon_id_hi != 0x0B) | |
1217 | return -EINVAL; | |
1218 | break; | |
1219 | case CYAPA_GEN5: | |
1220 | /* Gen5 without proximity support. */ | |
1221 | if (cyapa->platform_ver < 2) { | |
1222 | if (image_head->head_size == 0x0C) | |
1223 | break; | |
1224 | return -EINVAL; | |
1225 | } | |
1226 | ||
1227 | if (image_head->family_id != 0x91 || | |
1228 | image_head->silicon_id_hi != 0x02) | |
1229 | return -EINVAL; | |
1230 | break; | |
1231 | default: | |
1232 | return -EINVAL; | |
1233 | } | |
1234 | ||
5812d306 DD |
1235 | return 0; |
1236 | } | |
1237 | ||
94897619 | 1238 | int cyapa_pip_check_fw(struct cyapa *cyapa, const struct firmware *fw) |
5812d306 DD |
1239 | { |
1240 | struct device *dev = &cyapa->client->dev; | |
94897619 | 1241 | struct cyapa_tsg_bin_image_data_record *image_records; |
2be7256f | 1242 | const struct cyapa_tsg_bin_image_data_record *app_integrity; |
94897619 DD |
1243 | const struct tsg_bl_metadata_row_params *metadata; |
1244 | int flash_records_count; | |
2be7256f DT |
1245 | u32 fw_app_start, fw_upgrade_start; |
1246 | u16 fw_app_len, fw_upgrade_len; | |
1247 | u16 app_crc; | |
1248 | u16 app_integrity_crc; | |
5812d306 DD |
1249 | int i; |
1250 | ||
c2c06c41 DD |
1251 | /* Verify the firmware image not miss-used for Gen5 and Gen6. */ |
1252 | if (cyapa_pip_fw_head_check(cyapa, | |
1253 | (struct cyapa_tsg_bin_image_head *)fw->data)) { | |
1254 | dev_err(dev, "%s: firmware image not match TP device.\n", | |
1255 | __func__); | |
1256 | return -EINVAL; | |
1257 | } | |
1258 | ||
94897619 DD |
1259 | image_records = |
1260 | cyapa_get_image_record_data_num(fw, &flash_records_count); | |
5812d306 | 1261 | |
2be7256f DT |
1262 | /* |
1263 | * APP_INTEGRITY row is always the last row block, | |
1264 | * and the row id must be 0x01ff. | |
1265 | */ | |
94897619 | 1266 | app_integrity = &image_records[flash_records_count - 1]; |
2be7256f DT |
1267 | |
1268 | if (app_integrity->flash_array_id != 0x00 || | |
1269 | get_unaligned_be16(&app_integrity->row_number) != 0x01ff) { | |
5812d306 DD |
1270 | dev_err(dev, "%s: invalid app_integrity data.\n", __func__); |
1271 | return -EINVAL; | |
1272 | } | |
2be7256f DT |
1273 | |
1274 | metadata = (const void *)app_integrity->record_data; | |
5812d306 DD |
1275 | |
1276 | /* Verify app_integrity crc */ | |
2be7256f DT |
1277 | app_integrity_crc = crc_itu_t(0xffff, app_integrity->record_data, |
1278 | CYAPA_TSG_APP_INTEGRITY_SIZE); | |
1279 | if (app_integrity_crc != get_unaligned_le16(&metadata->metadata_crc)) { | |
5812d306 DD |
1280 | dev_err(dev, "%s: invalid app_integrity crc.\n", __func__); |
1281 | return -EINVAL; | |
1282 | } | |
1283 | ||
2be7256f DT |
1284 | fw_app_start = get_unaligned_le32(&metadata->app_start); |
1285 | fw_app_len = get_unaligned_le16(&metadata->app_len); | |
1286 | fw_upgrade_start = get_unaligned_le32(&metadata->upgrade_start); | |
1287 | fw_upgrade_len = get_unaligned_le16(&metadata->upgrade_len); | |
1288 | ||
1289 | if (fw_app_start % CYAPA_TSG_FW_ROW_SIZE || | |
1290 | fw_app_len % CYAPA_TSG_FW_ROW_SIZE || | |
1291 | fw_upgrade_start % CYAPA_TSG_FW_ROW_SIZE || | |
1292 | fw_upgrade_len % CYAPA_TSG_FW_ROW_SIZE) { | |
1293 | dev_err(dev, "%s: invalid image alignment.\n", __func__); | |
1294 | return -EINVAL; | |
1295 | } | |
1296 | ||
94897619 | 1297 | /* Verify application image CRC. */ |
2be7256f DT |
1298 | app_crc = 0xffffU; |
1299 | for (i = 0; i < fw_app_len / CYAPA_TSG_FW_ROW_SIZE; i++) { | |
94897619 DD |
1300 | const u8 *data = image_records[i].record_data; |
1301 | ||
5812d306 DD |
1302 | app_crc = crc_itu_t(app_crc, data, CYAPA_TSG_FW_ROW_SIZE); |
1303 | } | |
1304 | ||
2be7256f | 1305 | if (app_crc != get_unaligned_le16(&metadata->app_crc)) { |
5812d306 DD |
1306 | dev_err(dev, "%s: invalid firmware app crc check.\n", __func__); |
1307 | return -EINVAL; | |
1308 | } | |
1309 | ||
1310 | return 0; | |
1311 | } | |
1312 | ||
94897619 | 1313 | static int cyapa_pip_write_fw_block(struct cyapa *cyapa, |
5812d306 DD |
1314 | struct cyapa_tsg_bin_image_data_record *flash_record) |
1315 | { | |
94897619 DD |
1316 | struct pip_bl_cmd_head *bl_cmd_head; |
1317 | struct pip_bl_packet_start *bl_packet_start; | |
1318 | struct tsg_bl_flash_row_head *flash_row_head; | |
1319 | struct pip_bl_packet_end *bl_packet_end; | |
5812d306 DD |
1320 | u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; |
1321 | u16 cmd_len; | |
1322 | u8 flash_array_id; | |
1323 | u16 flash_row_id; | |
1324 | u16 record_len; | |
1325 | u8 *record_data; | |
1326 | u16 data_len; | |
1327 | u16 crc; | |
1328 | u8 resp_data[11]; | |
1329 | int resp_len; | |
1330 | int error; | |
1331 | ||
1332 | flash_array_id = flash_record->flash_array_id; | |
1333 | flash_row_id = get_unaligned_be16(&flash_record->row_number); | |
1334 | record_len = get_unaligned_be16(&flash_record->record_len); | |
1335 | record_data = flash_record->record_data; | |
1336 | ||
1337 | memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); | |
94897619 | 1338 | bl_cmd_head = (struct pip_bl_cmd_head *)cmd; |
5812d306 | 1339 | bl_packet_start = &bl_cmd_head->packet_start; |
94897619 DD |
1340 | cmd_len = sizeof(struct pip_bl_cmd_head) + |
1341 | sizeof(struct tsg_bl_flash_row_head) + | |
5812d306 | 1342 | CYAPA_TSG_FLASH_MAP_BLOCK_SIZE + |
94897619 | 1343 | sizeof(struct pip_bl_packet_end); |
5812d306 | 1344 | |
94897619 | 1345 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr); |
5812d306 DD |
1346 | /* Don't include 2 bytes register address */ |
1347 | put_unaligned_le16(cmd_len - 2, &bl_cmd_head->length); | |
94897619 DD |
1348 | bl_cmd_head->report_id = PIP_BL_CMD_REPORT_ID; |
1349 | bl_packet_start->sop = PIP_SOP_KEY; | |
1350 | bl_packet_start->cmd_code = PIP_BL_CMD_PROGRAM_VERIFY_ROW; | |
5812d306 DD |
1351 | |
1352 | /* 1 (Flash Array ID) + 2 (Flash Row ID) + 128 (flash data) */ | |
94897619 | 1353 | data_len = sizeof(struct tsg_bl_flash_row_head) + record_len; |
5812d306 DD |
1354 | put_unaligned_le16(data_len, &bl_packet_start->data_length); |
1355 | ||
94897619 | 1356 | flash_row_head = (struct tsg_bl_flash_row_head *)bl_cmd_head->data; |
5812d306 DD |
1357 | flash_row_head->flash_array_id = flash_array_id; |
1358 | put_unaligned_le16(flash_row_id, &flash_row_head->flash_row_id); | |
1359 | memcpy(flash_row_head->flash_data, record_data, record_len); | |
1360 | ||
94897619 | 1361 | bl_packet_end = (struct pip_bl_packet_end *)(bl_cmd_head->data + |
5812d306 DD |
1362 | data_len); |
1363 | crc = crc_itu_t(0xffff, (u8 *)bl_packet_start, | |
94897619 | 1364 | sizeof(struct pip_bl_packet_start) + data_len); |
5812d306 | 1365 | put_unaligned_le16(crc, &bl_packet_end->crc); |
94897619 | 1366 | bl_packet_end->eop = PIP_EOP_KEY; |
5812d306 DD |
1367 | |
1368 | resp_len = sizeof(resp_data); | |
1369 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, | |
1370 | resp_data, &resp_len, | |
94897619 DD |
1371 | 500, cyapa_sort_tsg_pip_bl_resp_data, true); |
1372 | if (error || resp_len != PIP_BL_BLOCK_WRITE_RESP_LEN || | |
1373 | resp_data[2] != PIP_BL_RESP_REPORT_ID || | |
1374 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) | |
5812d306 DD |
1375 | return error < 0 ? error : -EAGAIN; |
1376 | ||
1377 | return 0; | |
1378 | } | |
1379 | ||
94897619 | 1380 | int cyapa_pip_do_fw_update(struct cyapa *cyapa, |
5812d306 DD |
1381 | const struct firmware *fw) |
1382 | { | |
1383 | struct device *dev = &cyapa->client->dev; | |
94897619 | 1384 | struct cyapa_tsg_bin_image_data_record *image_records; |
5812d306 DD |
1385 | int flash_records_count; |
1386 | int i; | |
1387 | int error; | |
1388 | ||
1389 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1390 | ||
94897619 DD |
1391 | image_records = |
1392 | cyapa_get_image_record_data_num(fw, &flash_records_count); | |
1393 | ||
5812d306 DD |
1394 | /* |
1395 | * The last flash row 0x01ff has been written through bl_initiate | |
1396 | * command, so DO NOT write flash 0x01ff to trackpad device. | |
1397 | */ | |
1398 | for (i = 0; i < (flash_records_count - 1); i++) { | |
94897619 | 1399 | error = cyapa_pip_write_fw_block(cyapa, &image_records[i]); |
5812d306 DD |
1400 | if (error) { |
1401 | dev_err(dev, "%s: Gen5 FW update aborted: %d\n", | |
1402 | __func__, error); | |
1403 | return error; | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | return 0; | |
1408 | } | |
1409 | ||
6972a859 DD |
1410 | static int cyapa_gen5_change_power_state(struct cyapa *cyapa, u8 power_state) |
1411 | { | |
1412 | u8 cmd[8] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, 0x08, 0x01 }; | |
1413 | u8 resp_data[6]; | |
1414 | int resp_len; | |
1415 | int error; | |
1416 | ||
1417 | cmd[7] = power_state; | |
1418 | resp_len = sizeof(resp_data); | |
1419 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), | |
1420 | resp_data, &resp_len, | |
94897619 | 1421 | 500, cyapa_sort_tsg_pip_app_resp_data, false); |
6972a859 | 1422 | if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x08) || |
94897619 | 1423 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) |
6972a859 DD |
1424 | return error < 0 ? error : -EINVAL; |
1425 | ||
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | static int cyapa_gen5_set_interval_time(struct cyapa *cyapa, | |
1430 | u8 parameter_id, u16 interval_time) | |
1431 | { | |
94897619 | 1432 | struct pip_app_cmd_head *app_cmd_head; |
6972a859 DD |
1433 | struct gen5_app_set_parameter_data *parameter_data; |
1434 | u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; | |
1435 | int cmd_len; | |
1436 | u8 resp_data[7]; | |
1437 | int resp_len; | |
1438 | u8 parameter_size; | |
1439 | int error; | |
1440 | ||
1441 | memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); | |
94897619 | 1442 | app_cmd_head = (struct pip_app_cmd_head *)cmd; |
6972a859 DD |
1443 | parameter_data = (struct gen5_app_set_parameter_data *) |
1444 | app_cmd_head->parameter_data; | |
94897619 | 1445 | cmd_len = sizeof(struct pip_app_cmd_head) + |
6972a859 DD |
1446 | sizeof(struct gen5_app_set_parameter_data); |
1447 | ||
1448 | switch (parameter_id) { | |
1449 | case GEN5_PARAMETER_ACT_INTERVL_ID: | |
1450 | parameter_size = GEN5_PARAMETER_ACT_INTERVL_SIZE; | |
1451 | break; | |
1452 | case GEN5_PARAMETER_ACT_LFT_INTERVL_ID: | |
1453 | parameter_size = GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE; | |
1454 | break; | |
1455 | case GEN5_PARAMETER_LP_INTRVL_ID: | |
1456 | parameter_size = GEN5_PARAMETER_LP_INTRVL_SIZE; | |
1457 | break; | |
1458 | default: | |
1459 | return -EINVAL; | |
1460 | } | |
1461 | ||
94897619 | 1462 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); |
6972a859 DD |
1463 | /* |
1464 | * Don't include unused parameter value bytes and | |
1465 | * 2 bytes register address. | |
1466 | */ | |
1467 | put_unaligned_le16(cmd_len - (4 - parameter_size) - 2, | |
1468 | &app_cmd_head->length); | |
94897619 | 1469 | app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
6972a859 DD |
1470 | app_cmd_head->cmd_code = GEN5_CMD_SET_PARAMETER; |
1471 | parameter_data->parameter_id = parameter_id; | |
1472 | parameter_data->parameter_size = parameter_size; | |
1473 | put_unaligned_le32((u32)interval_time, ¶meter_data->value); | |
1474 | resp_len = sizeof(resp_data); | |
1475 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, | |
1476 | resp_data, &resp_len, | |
94897619 | 1477 | 500, cyapa_sort_tsg_pip_app_resp_data, false); |
6972a859 DD |
1478 | if (error || resp_data[5] != parameter_id || |
1479 | resp_data[6] != parameter_size || | |
1480 | !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_SET_PARAMETER)) | |
1481 | return error < 0 ? error : -EINVAL; | |
1482 | ||
1483 | return 0; | |
1484 | } | |
1485 | ||
1486 | static int cyapa_gen5_get_interval_time(struct cyapa *cyapa, | |
1487 | u8 parameter_id, u16 *interval_time) | |
1488 | { | |
94897619 | 1489 | struct pip_app_cmd_head *app_cmd_head; |
6972a859 DD |
1490 | struct gen5_app_get_parameter_data *parameter_data; |
1491 | u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; | |
1492 | int cmd_len; | |
1493 | u8 resp_data[11]; | |
1494 | int resp_len; | |
1495 | u8 parameter_size; | |
1496 | u16 mask, i; | |
1497 | int error; | |
1498 | ||
1499 | memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); | |
94897619 | 1500 | app_cmd_head = (struct pip_app_cmd_head *)cmd; |
6972a859 DD |
1501 | parameter_data = (struct gen5_app_get_parameter_data *) |
1502 | app_cmd_head->parameter_data; | |
94897619 | 1503 | cmd_len = sizeof(struct pip_app_cmd_head) + |
6972a859 DD |
1504 | sizeof(struct gen5_app_get_parameter_data); |
1505 | ||
1506 | *interval_time = 0; | |
1507 | switch (parameter_id) { | |
1508 | case GEN5_PARAMETER_ACT_INTERVL_ID: | |
1509 | parameter_size = GEN5_PARAMETER_ACT_INTERVL_SIZE; | |
1510 | break; | |
1511 | case GEN5_PARAMETER_ACT_LFT_INTERVL_ID: | |
1512 | parameter_size = GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE; | |
1513 | break; | |
1514 | case GEN5_PARAMETER_LP_INTRVL_ID: | |
1515 | parameter_size = GEN5_PARAMETER_LP_INTRVL_SIZE; | |
1516 | break; | |
1517 | default: | |
1518 | return -EINVAL; | |
1519 | } | |
1520 | ||
94897619 | 1521 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); |
6972a859 DD |
1522 | /* Don't include 2 bytes register address */ |
1523 | put_unaligned_le16(cmd_len - 2, &app_cmd_head->length); | |
94897619 | 1524 | app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
6972a859 DD |
1525 | app_cmd_head->cmd_code = GEN5_CMD_GET_PARAMETER; |
1526 | parameter_data->parameter_id = parameter_id; | |
1527 | ||
1528 | resp_len = sizeof(resp_data); | |
1529 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, | |
1530 | resp_data, &resp_len, | |
94897619 | 1531 | 500, cyapa_sort_tsg_pip_app_resp_data, false); |
6972a859 DD |
1532 | if (error || resp_data[5] != parameter_id || resp_data[6] == 0 || |
1533 | !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_GET_PARAMETER)) | |
1534 | return error < 0 ? error : -EINVAL; | |
1535 | ||
1536 | mask = 0; | |
1537 | for (i = 0; i < parameter_size; i++) | |
1538 | mask |= (0xff << (i * 8)); | |
1539 | *interval_time = get_unaligned_le16(&resp_data[7]) & mask; | |
1540 | ||
1541 | return 0; | |
1542 | } | |
1543 | ||
1544 | static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa) | |
1545 | { | |
94897619 | 1546 | struct pip_app_cmd_head *app_cmd_head; |
6972a859 DD |
1547 | u8 cmd[10]; |
1548 | u8 resp_data[7]; | |
1549 | int resp_len; | |
1550 | int error; | |
1551 | ||
1552 | memset(cmd, 0, sizeof(cmd)); | |
94897619 | 1553 | app_cmd_head = (struct pip_app_cmd_head *)cmd; |
6972a859 | 1554 | |
94897619 | 1555 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); |
6972a859 | 1556 | put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); |
94897619 | 1557 | app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
6972a859 DD |
1558 | app_cmd_head->cmd_code = GEN5_CMD_SET_PARAMETER; |
1559 | app_cmd_head->parameter_data[0] = GEN5_PARAMETER_DISABLE_PIP_REPORT; | |
1560 | app_cmd_head->parameter_data[1] = 0x01; | |
1561 | app_cmd_head->parameter_data[2] = 0x01; | |
1562 | resp_len = sizeof(resp_data); | |
1563 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), | |
1564 | resp_data, &resp_len, | |
94897619 | 1565 | 500, cyapa_sort_tsg_pip_app_resp_data, false); |
6972a859 DD |
1566 | if (error || resp_data[5] != GEN5_PARAMETER_DISABLE_PIP_REPORT || |
1567 | !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_SET_PARAMETER) || | |
1568 | resp_data[6] != 0x01) | |
1569 | return error < 0 ? error : -EINVAL; | |
1570 | ||
1571 | return 0; | |
1572 | } | |
1573 | ||
945525ee DD |
1574 | int cyapa_pip_set_proximity(struct cyapa *cyapa, bool enable) |
1575 | { | |
1576 | u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, PIP_SET_PROXIMITY, | |
1577 | (u8)!!enable | |
1578 | }; | |
1579 | u8 resp_data[6]; | |
1580 | int resp_len; | |
1581 | int error; | |
1582 | ||
1583 | resp_len = sizeof(resp_data); | |
1584 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), | |
1585 | resp_data, &resp_len, | |
1586 | 500, cyapa_sort_tsg_pip_app_resp_data, false); | |
1587 | if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_SET_PROXIMITY) || | |
1588 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) { | |
1589 | error = (error == -ETIMEDOUT) ? -EOPNOTSUPP : error; | |
1590 | return error < 0 ? error : -EINVAL; | |
1591 | } | |
1592 | ||
1593 | return 0; | |
1594 | } | |
1595 | ||
94897619 | 1596 | int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state) |
6972a859 DD |
1597 | { |
1598 | u8 cmd[] = { 0x05, 0x00, 0x00, 0x08}; | |
1599 | u8 resp_data[5]; | |
1600 | int resp_len; | |
1601 | int error; | |
1602 | ||
94897619 | 1603 | cmd[2] = state & PIP_DEEP_SLEEP_STATE_MASK; |
6972a859 DD |
1604 | resp_len = sizeof(resp_data); |
1605 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), | |
1606 | resp_data, &resp_len, | |
94897619 DD |
1607 | 500, cyapa_sort_pip_deep_sleep_data, false); |
1608 | if (error || ((resp_data[3] & PIP_DEEP_SLEEP_STATE_MASK) != state)) | |
6972a859 DD |
1609 | return -EINVAL; |
1610 | ||
1611 | return 0; | |
1612 | } | |
1613 | ||
1614 | static int cyapa_gen5_set_power_mode(struct cyapa *cyapa, | |
3cd47869 | 1615 | u8 power_mode, u16 sleep_time, enum cyapa_pm_stage pm_stage) |
6972a859 DD |
1616 | { |
1617 | struct device *dev = &cyapa->client->dev; | |
1618 | u8 power_state; | |
3cd47869 | 1619 | int error = 0; |
6972a859 DD |
1620 | |
1621 | if (cyapa->state != CYAPA_STATE_GEN5_APP) | |
1622 | return 0; | |
1623 | ||
3cd47869 DD |
1624 | cyapa_set_pip_pm_state(cyapa, pm_stage); |
1625 | ||
94897619 | 1626 | if (PIP_DEV_GET_PWR_STATE(cyapa) == UNINIT_PWR_MODE) { |
6972a859 DD |
1627 | /* |
1628 | * Assume TP in deep sleep mode when driver is loaded, | |
1629 | * avoid driver unload and reload command IO issue caused by TP | |
1630 | * has been set into deep sleep mode when unloading. | |
1631 | */ | |
94897619 | 1632 | PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF); |
6972a859 DD |
1633 | } |
1634 | ||
94897619 DD |
1635 | if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) && |
1636 | PIP_DEV_GET_PWR_STATE(cyapa) != PWR_MODE_OFF) | |
6972a859 DD |
1637 | if (cyapa_gen5_get_interval_time(cyapa, |
1638 | GEN5_PARAMETER_LP_INTRVL_ID, | |
1639 | &cyapa->dev_sleep_time) != 0) | |
94897619 | 1640 | PIP_DEV_SET_SLEEP_TIME(cyapa, UNINIT_SLEEP_TIME); |
6972a859 | 1641 | |
94897619 | 1642 | if (PIP_DEV_GET_PWR_STATE(cyapa) == power_mode) { |
6972a859 DD |
1643 | if (power_mode == PWR_MODE_OFF || |
1644 | power_mode == PWR_MODE_FULL_ACTIVE || | |
1645 | power_mode == PWR_MODE_BTN_ONLY || | |
94897619 | 1646 | PIP_DEV_GET_SLEEP_TIME(cyapa) == sleep_time) { |
6972a859 | 1647 | /* Has in correct power mode state, early return. */ |
3cd47869 | 1648 | goto out; |
6972a859 DD |
1649 | } |
1650 | } | |
1651 | ||
1652 | if (power_mode == PWR_MODE_OFF) { | |
94897619 | 1653 | error = cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_OFF); |
6972a859 DD |
1654 | if (error) { |
1655 | dev_err(dev, "enter deep sleep fail: %d\n", error); | |
3cd47869 | 1656 | goto out; |
6972a859 DD |
1657 | } |
1658 | ||
94897619 | 1659 | PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF); |
3cd47869 | 1660 | goto out; |
6972a859 DD |
1661 | } |
1662 | ||
1663 | /* | |
1664 | * When trackpad in power off mode, it cannot change to other power | |
1665 | * state directly, must be wake up from sleep firstly, then | |
1666 | * continue to do next power sate change. | |
1667 | */ | |
94897619 DD |
1668 | if (PIP_DEV_GET_PWR_STATE(cyapa) == PWR_MODE_OFF) { |
1669 | error = cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_ON); | |
6972a859 DD |
1670 | if (error) { |
1671 | dev_err(dev, "deep sleep wake fail: %d\n", error); | |
3cd47869 | 1672 | goto out; |
6972a859 DD |
1673 | } |
1674 | } | |
1675 | ||
1676 | if (power_mode == PWR_MODE_FULL_ACTIVE) { | |
1677 | error = cyapa_gen5_change_power_state(cyapa, | |
1678 | GEN5_POWER_STATE_ACTIVE); | |
1679 | if (error) { | |
1680 | dev_err(dev, "change to active fail: %d\n", error); | |
3cd47869 | 1681 | goto out; |
6972a859 DD |
1682 | } |
1683 | ||
94897619 | 1684 | PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_FULL_ACTIVE); |
6972a859 DD |
1685 | } else if (power_mode == PWR_MODE_BTN_ONLY) { |
1686 | error = cyapa_gen5_change_power_state(cyapa, | |
1687 | GEN5_POWER_STATE_BTN_ONLY); | |
1688 | if (error) { | |
1689 | dev_err(dev, "fail to button only mode: %d\n", error); | |
3cd47869 | 1690 | goto out; |
6972a859 DD |
1691 | } |
1692 | ||
94897619 | 1693 | PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_BTN_ONLY); |
6972a859 DD |
1694 | } else { |
1695 | /* | |
1696 | * Continue to change power mode even failed to set | |
1697 | * interval time, it won't affect the power mode change. | |
1698 | * except the sleep interval time is not correct. | |
1699 | */ | |
94897619 DD |
1700 | if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) || |
1701 | sleep_time != PIP_DEV_GET_SLEEP_TIME(cyapa)) | |
6972a859 DD |
1702 | if (cyapa_gen5_set_interval_time(cyapa, |
1703 | GEN5_PARAMETER_LP_INTRVL_ID, | |
1704 | sleep_time) == 0) | |
94897619 | 1705 | PIP_DEV_SET_SLEEP_TIME(cyapa, sleep_time); |
6972a859 DD |
1706 | |
1707 | if (sleep_time <= GEN5_POWER_READY_MAX_INTRVL_TIME) | |
1708 | power_state = GEN5_POWER_STATE_READY; | |
1709 | else | |
1710 | power_state = GEN5_POWER_STATE_IDLE; | |
1711 | error = cyapa_gen5_change_power_state(cyapa, power_state); | |
1712 | if (error) { | |
1713 | dev_err(dev, "set power state to 0x%02x failed: %d\n", | |
1714 | power_state, error); | |
3cd47869 | 1715 | goto out; |
6972a859 DD |
1716 | } |
1717 | ||
1718 | /* | |
1719 | * Disable pip report for a little time, firmware will | |
1720 | * re-enable it automatically. It's used to fix the issue | |
1721 | * that trackpad unable to report signal to wake system up | |
1722 | * in the special situation that system is in suspending, and | |
1723 | * at the same time, user touch trackpad to wake system up. | |
7debcbb1 SV |
1724 | * This function can avoid the data to be buffered when system |
1725 | * is suspending which may cause interrupt line unable to be | |
6972a859 DD |
1726 | * asserted again. |
1727 | */ | |
3cd47869 | 1728 | if (pm_stage == CYAPA_PM_SUSPEND) |
757cae5a | 1729 | cyapa_gen5_disable_pip_report(cyapa); |
6972a859 | 1730 | |
94897619 | 1731 | PIP_DEV_SET_PWR_STATE(cyapa, |
6972a859 DD |
1732 | cyapa_sleep_time_to_pwr_cmd(sleep_time)); |
1733 | } | |
1734 | ||
3cd47869 DD |
1735 | out: |
1736 | cyapa_reset_pip_pm_state(cyapa); | |
1737 | return error; | |
6972a859 DD |
1738 | } |
1739 | ||
94897619 | 1740 | int cyapa_pip_resume_scanning(struct cyapa *cyapa) |
6499d390 DD |
1741 | { |
1742 | u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x04 }; | |
1743 | u8 resp_data[6]; | |
1744 | int resp_len; | |
1745 | int error; | |
1746 | ||
1747 | /* Try to dump all buffered data before doing command. */ | |
1748 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1749 | ||
1750 | resp_len = sizeof(resp_data); | |
1751 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
1752 | cmd, sizeof(cmd), | |
1753 | resp_data, &resp_len, | |
94897619 | 1754 | 500, cyapa_sort_tsg_pip_app_resp_data, true); |
6499d390 DD |
1755 | if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x04)) |
1756 | return -EINVAL; | |
1757 | ||
1758 | /* Try to dump all buffered data when resuming scanning. */ | |
1759 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1760 | ||
1761 | return 0; | |
1762 | } | |
1763 | ||
94897619 | 1764 | int cyapa_pip_suspend_scanning(struct cyapa *cyapa) |
6499d390 DD |
1765 | { |
1766 | u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x03 }; | |
1767 | u8 resp_data[6]; | |
1768 | int resp_len; | |
1769 | int error; | |
1770 | ||
1771 | /* Try to dump all buffered data before doing command. */ | |
1772 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1773 | ||
1774 | resp_len = sizeof(resp_data); | |
1775 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
1776 | cmd, sizeof(cmd), | |
1777 | resp_data, &resp_len, | |
94897619 | 1778 | 500, cyapa_sort_tsg_pip_app_resp_data, true); |
6499d390 DD |
1779 | if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x03)) |
1780 | return -EINVAL; | |
1781 | ||
1782 | /* Try to dump all buffered data when suspending scanning. */ | |
1783 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1784 | ||
1785 | return 0; | |
1786 | } | |
1787 | ||
94897619 | 1788 | static int cyapa_pip_calibrate_pwcs(struct cyapa *cyapa, |
daceed1e DD |
1789 | u8 calibrate_sensing_mode_type) |
1790 | { | |
94897619 | 1791 | struct pip_app_cmd_head *app_cmd_head; |
daceed1e DD |
1792 | u8 cmd[8]; |
1793 | u8 resp_data[6]; | |
1794 | int resp_len; | |
1795 | int error; | |
1796 | ||
1797 | /* Try to dump all buffered data before doing command. */ | |
1798 | cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); | |
1799 | ||
1800 | memset(cmd, 0, sizeof(cmd)); | |
94897619 DD |
1801 | app_cmd_head = (struct pip_app_cmd_head *)cmd; |
1802 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); | |
daceed1e | 1803 | put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); |
94897619 DD |
1804 | app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
1805 | app_cmd_head->cmd_code = PIP_CMD_CALIBRATE; | |
daceed1e DD |
1806 | app_cmd_head->parameter_data[0] = calibrate_sensing_mode_type; |
1807 | resp_len = sizeof(resp_data); | |
1808 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
1809 | cmd, sizeof(cmd), | |
1810 | resp_data, &resp_len, | |
94897619 DD |
1811 | 5000, cyapa_sort_tsg_pip_app_resp_data, true); |
1812 | if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_CMD_CALIBRATE) || | |
1813 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) | |
daceed1e DD |
1814 | return error < 0 ? error : -EAGAIN; |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
94897619 | 1819 | ssize_t cyapa_pip_do_calibrate(struct device *dev, |
daceed1e DD |
1820 | struct device_attribute *attr, |
1821 | const char *buf, size_t count) | |
1822 | { | |
1823 | struct cyapa *cyapa = dev_get_drvdata(dev); | |
1824 | int error, calibrate_error; | |
1825 | ||
1826 | /* 1. Suspend Scanning*/ | |
94897619 | 1827 | error = cyapa_pip_suspend_scanning(cyapa); |
daceed1e DD |
1828 | if (error) |
1829 | return error; | |
1830 | ||
1831 | /* 2. Do mutual capacitance fine calibrate. */ | |
94897619 DD |
1832 | calibrate_error = cyapa_pip_calibrate_pwcs(cyapa, |
1833 | PIP_SENSING_MODE_MUTUAL_CAP_FINE); | |
daceed1e DD |
1834 | if (calibrate_error) |
1835 | goto resume_scanning; | |
1836 | ||
1837 | /* 3. Do self capacitance calibrate. */ | |
94897619 DD |
1838 | calibrate_error = cyapa_pip_calibrate_pwcs(cyapa, |
1839 | PIP_SENSING_MODE_SELF_CAP); | |
daceed1e DD |
1840 | if (calibrate_error) |
1841 | goto resume_scanning; | |
1842 | ||
1843 | resume_scanning: | |
1844 | /* 4. Resume Scanning*/ | |
94897619 | 1845 | error = cyapa_pip_resume_scanning(cyapa); |
daceed1e DD |
1846 | if (error || calibrate_error) |
1847 | return error ? error : calibrate_error; | |
1848 | ||
1849 | return count; | |
1850 | } | |
1851 | ||
6499d390 DD |
1852 | static s32 twos_complement_to_s32(s32 value, int num_bits) |
1853 | { | |
1854 | if (value >> (num_bits - 1)) | |
1855 | value |= -1 << num_bits; | |
1856 | return value; | |
1857 | } | |
1858 | ||
1859 | static s32 cyapa_parse_structure_data(u8 data_format, u8 *buf, int buf_len) | |
1860 | { | |
1861 | int data_size; | |
1862 | bool big_endian; | |
1863 | bool unsigned_type; | |
1864 | s32 value; | |
1865 | ||
1866 | data_size = (data_format & 0x07); | |
1867 | big_endian = ((data_format & 0x10) == 0x00); | |
1868 | unsigned_type = ((data_format & 0x20) == 0x00); | |
1869 | ||
1870 | if (buf_len < data_size) | |
1871 | return 0; | |
1872 | ||
1873 | switch (data_size) { | |
1874 | case 1: | |
1875 | value = buf[0]; | |
1876 | break; | |
1877 | case 2: | |
1878 | if (big_endian) | |
1879 | value = get_unaligned_be16(buf); | |
1880 | else | |
1881 | value = get_unaligned_le16(buf); | |
1882 | break; | |
1883 | case 4: | |
1884 | if (big_endian) | |
1885 | value = get_unaligned_be32(buf); | |
1886 | else | |
1887 | value = get_unaligned_le32(buf); | |
1888 | break; | |
1889 | default: | |
1890 | /* Should not happen, just as default case here. */ | |
1891 | value = 0; | |
1892 | break; | |
1893 | } | |
1894 | ||
1895 | if (!unsigned_type) | |
1896 | value = twos_complement_to_s32(value, data_size * 8); | |
1897 | ||
1898 | return value; | |
1899 | } | |
1900 | ||
1901 | static void cyapa_gen5_guess_electrodes(struct cyapa *cyapa, | |
1902 | int *electrodes_rx, int *electrodes_tx) | |
1903 | { | |
1904 | if (cyapa->electrodes_rx != 0) { | |
1905 | *electrodes_rx = cyapa->electrodes_rx; | |
1906 | *electrodes_tx = (cyapa->electrodes_x == *electrodes_rx) ? | |
1907 | cyapa->electrodes_y : cyapa->electrodes_x; | |
1908 | } else { | |
1909 | *electrodes_tx = min(cyapa->electrodes_x, cyapa->electrodes_y); | |
1910 | *electrodes_rx = max(cyapa->electrodes_x, cyapa->electrodes_y); | |
1911 | } | |
1912 | } | |
1913 | ||
1914 | /* | |
1915 | * Read all the global mutual or self idac data or mutual or self local PWC | |
1916 | * data based on the @idac_data_type. | |
1917 | * If the input value of @data_size is 0, then means read global mutual or | |
1918 | * self idac data. For read global mutual idac data, @idac_max, @idac_min and | |
1919 | * @idac_ave are in order used to return the max value of global mutual idac | |
1920 | * data, the min value of global mutual idac and the average value of the | |
1921 | * global mutual idac data. For read global self idac data, @idac_max is used | |
1922 | * to return the global self cap idac data in Rx direction, @idac_min is used | |
1923 | * to return the global self cap idac data in Tx direction. @idac_ave is not | |
1924 | * used. | |
1925 | * If the input value of @data_size is not 0, than means read the mutual or | |
1926 | * self local PWC data. The @idac_max, @idac_min and @idac_ave are used to | |
1927 | * return the max, min and average value of the mutual or self local PWC data. | |
94897619 | 1928 | * Note, in order to read mutual local PWC data, must read invoke this function |
6499d390 DD |
1929 | * to read the mutual global idac data firstly to set the correct Rx number |
1930 | * value, otherwise, the read mutual idac and PWC data may not correct. | |
1931 | */ | |
1932 | static int cyapa_gen5_read_idac_data(struct cyapa *cyapa, | |
1933 | u8 cmd_code, u8 idac_data_type, int *data_size, | |
1934 | int *idac_max, int *idac_min, int *idac_ave) | |
1935 | { | |
94897619 | 1936 | struct pip_app_cmd_head *cmd_head; |
6499d390 DD |
1937 | u8 cmd[12]; |
1938 | u8 resp_data[256]; | |
1939 | int resp_len; | |
1940 | int read_len; | |
1941 | int value; | |
1942 | u16 offset; | |
1943 | int read_elements; | |
1944 | bool read_global_idac; | |
1945 | int sum, count, max_element_cnt; | |
1946 | int tmp_max, tmp_min, tmp_ave, tmp_sum, tmp_count; | |
1947 | int electrodes_rx, electrodes_tx; | |
1948 | int i; | |
1949 | int error; | |
1950 | ||
94897619 | 1951 | if (cmd_code != PIP_RETRIEVE_DATA_STRUCTURE || |
6499d390 DD |
1952 | (idac_data_type != GEN5_RETRIEVE_MUTUAL_PWC_DATA && |
1953 | idac_data_type != GEN5_RETRIEVE_SELF_CAP_PWC_DATA) || | |
1954 | !data_size || !idac_max || !idac_min || !idac_ave) | |
1955 | return -EINVAL; | |
1956 | ||
1957 | *idac_max = INT_MIN; | |
1958 | *idac_min = INT_MAX; | |
1959 | sum = count = tmp_count = 0; | |
1960 | electrodes_rx = electrodes_tx = 0; | |
1961 | if (*data_size == 0) { | |
1962 | /* | |
1963 | * Read global idac values firstly. | |
1964 | * Currently, no idac data exceed 4 bytes. | |
1965 | */ | |
1966 | read_global_idac = true; | |
1967 | offset = 0; | |
1968 | *data_size = 4; | |
1969 | tmp_max = INT_MIN; | |
1970 | tmp_min = INT_MAX; | |
1971 | tmp_ave = tmp_sum = tmp_count = 0; | |
1972 | ||
1973 | if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) { | |
1974 | if (cyapa->aligned_electrodes_rx == 0) { | |
1975 | cyapa_gen5_guess_electrodes(cyapa, | |
1976 | &electrodes_rx, &electrodes_tx); | |
1977 | cyapa->aligned_electrodes_rx = | |
1978 | (electrodes_rx + 3) & ~3u; | |
1979 | } | |
1980 | max_element_cnt = | |
1981 | (cyapa->aligned_electrodes_rx + 7) & ~7u; | |
1982 | } else { | |
1983 | max_element_cnt = 2; | |
1984 | } | |
1985 | } else { | |
1986 | read_global_idac = false; | |
1987 | if (*data_size > 4) | |
1988 | *data_size = 4; | |
1989 | /* Calculate the start offset in bytes of local PWC data. */ | |
1990 | if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) { | |
1991 | offset = cyapa->aligned_electrodes_rx * (*data_size); | |
1992 | if (cyapa->electrodes_rx == cyapa->electrodes_x) | |
1993 | electrodes_tx = cyapa->electrodes_y; | |
1994 | else | |
1995 | electrodes_tx = cyapa->electrodes_x; | |
1996 | max_element_cnt = ((cyapa->aligned_electrodes_rx + 7) & | |
1997 | ~7u) * electrodes_tx; | |
2523caab | 1998 | } else { |
6499d390 DD |
1999 | offset = 2; |
2000 | max_element_cnt = cyapa->electrodes_x + | |
2001 | cyapa->electrodes_y; | |
2002 | max_element_cnt = (max_element_cnt + 3) & ~3u; | |
2003 | } | |
2004 | } | |
2005 | ||
2006 | memset(cmd, 0, sizeof(cmd)); | |
94897619 DD |
2007 | cmd_head = (struct pip_app_cmd_head *)cmd; |
2008 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &cmd_head->addr); | |
6499d390 | 2009 | put_unaligned_le16(sizeof(cmd) - 2, &cmd_head->length); |
94897619 | 2010 | cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
6499d390 DD |
2011 | cmd_head->cmd_code = cmd_code; |
2012 | do { | |
2013 | read_elements = (256 - GEN5_RESP_DATA_STRUCTURE_OFFSET) / | |
2014 | (*data_size); | |
2015 | read_elements = min(read_elements, max_element_cnt - count); | |
2016 | read_len = read_elements * (*data_size); | |
2017 | ||
2018 | put_unaligned_le16(offset, &cmd_head->parameter_data[0]); | |
2019 | put_unaligned_le16(read_len, &cmd_head->parameter_data[2]); | |
2020 | cmd_head->parameter_data[4] = idac_data_type; | |
2021 | resp_len = GEN5_RESP_DATA_STRUCTURE_OFFSET + read_len; | |
2022 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
2023 | cmd, sizeof(cmd), | |
2024 | resp_data, &resp_len, | |
94897619 | 2025 | 500, cyapa_sort_tsg_pip_app_resp_data, |
6499d390 DD |
2026 | true); |
2027 | if (error || resp_len < GEN5_RESP_DATA_STRUCTURE_OFFSET || | |
2028 | !VALID_CMD_RESP_HEADER(resp_data, cmd_code) || | |
94897619 | 2029 | !PIP_CMD_COMPLETE_SUCCESS(resp_data) || |
6499d390 DD |
2030 | resp_data[6] != idac_data_type) |
2031 | return (error < 0) ? error : -EAGAIN; | |
2032 | read_len = get_unaligned_le16(&resp_data[7]); | |
2033 | if (read_len == 0) | |
2034 | break; | |
2035 | ||
2036 | *data_size = (resp_data[9] & GEN5_PWC_DATA_ELEMENT_SIZE_MASK); | |
2037 | if (read_len < *data_size) | |
2038 | return -EINVAL; | |
2039 | ||
2040 | if (read_global_idac && | |
2041 | idac_data_type == GEN5_RETRIEVE_SELF_CAP_PWC_DATA) { | |
2042 | /* Rx's self global idac data. */ | |
2043 | *idac_max = cyapa_parse_structure_data( | |
2044 | resp_data[9], | |
2045 | &resp_data[GEN5_RESP_DATA_STRUCTURE_OFFSET], | |
2046 | *data_size); | |
2047 | /* Tx's self global idac data. */ | |
2048 | *idac_min = cyapa_parse_structure_data( | |
2049 | resp_data[9], | |
2050 | &resp_data[GEN5_RESP_DATA_STRUCTURE_OFFSET + | |
2051 | *data_size], | |
2052 | *data_size); | |
2053 | break; | |
2054 | } | |
2055 | ||
2056 | /* Read mutual global idac or local mutual/self PWC data. */ | |
2057 | offset += read_len; | |
2058 | for (i = 10; i < (read_len + GEN5_RESP_DATA_STRUCTURE_OFFSET); | |
2059 | i += *data_size) { | |
2060 | value = cyapa_parse_structure_data(resp_data[9], | |
2061 | &resp_data[i], *data_size); | |
2062 | *idac_min = min(value, *idac_min); | |
2063 | *idac_max = max(value, *idac_max); | |
2064 | ||
2065 | if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA && | |
2066 | tmp_count < cyapa->aligned_electrodes_rx && | |
2067 | read_global_idac) { | |
2068 | /* | |
94897619 | 2069 | * The value gap between global and local mutual |
6499d390 DD |
2070 | * idac data must bigger than 50%. |
2071 | * Normally, global value bigger than 50, | |
2072 | * local values less than 10. | |
2073 | */ | |
2074 | if (!tmp_ave || value > tmp_ave / 2) { | |
2075 | tmp_min = min(value, tmp_min); | |
2076 | tmp_max = max(value, tmp_max); | |
2077 | tmp_sum += value; | |
2078 | tmp_count++; | |
2079 | ||
2080 | tmp_ave = tmp_sum / tmp_count; | |
2081 | } | |
2082 | } | |
2083 | ||
2084 | sum += value; | |
2085 | count++; | |
2086 | ||
2087 | if (count >= max_element_cnt) | |
2088 | goto out; | |
2089 | } | |
2090 | } while (true); | |
2091 | ||
2092 | out: | |
2093 | *idac_ave = count ? (sum / count) : 0; | |
2094 | ||
2095 | if (read_global_idac && | |
2096 | idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) { | |
2097 | if (tmp_count == 0) | |
2098 | return 0; | |
2099 | ||
2100 | if (tmp_count == cyapa->aligned_electrodes_rx) { | |
2101 | cyapa->electrodes_rx = cyapa->electrodes_rx ? | |
2102 | cyapa->electrodes_rx : electrodes_rx; | |
2103 | } else if (tmp_count == electrodes_rx) { | |
2104 | cyapa->electrodes_rx = cyapa->electrodes_rx ? | |
2105 | cyapa->electrodes_rx : electrodes_rx; | |
2106 | cyapa->aligned_electrodes_rx = electrodes_rx; | |
2107 | } else { | |
2108 | cyapa->electrodes_rx = cyapa->electrodes_rx ? | |
2109 | cyapa->electrodes_rx : electrodes_tx; | |
2110 | cyapa->aligned_electrodes_rx = tmp_count; | |
2111 | } | |
2112 | ||
2113 | *idac_min = tmp_min; | |
2114 | *idac_max = tmp_max; | |
2115 | *idac_ave = tmp_ave; | |
2116 | } | |
2117 | ||
2118 | return 0; | |
2119 | } | |
2120 | ||
2121 | static int cyapa_gen5_read_mutual_idac_data(struct cyapa *cyapa, | |
2122 | int *gidac_mutual_max, int *gidac_mutual_min, int *gidac_mutual_ave, | |
2123 | int *lidac_mutual_max, int *lidac_mutual_min, int *lidac_mutual_ave) | |
2124 | { | |
2125 | int data_size; | |
2126 | int error; | |
2127 | ||
2128 | *gidac_mutual_max = *gidac_mutual_min = *gidac_mutual_ave = 0; | |
2129 | *lidac_mutual_max = *lidac_mutual_min = *lidac_mutual_ave = 0; | |
2130 | ||
2131 | data_size = 0; | |
2132 | error = cyapa_gen5_read_idac_data(cyapa, | |
94897619 | 2133 | PIP_RETRIEVE_DATA_STRUCTURE, |
6499d390 DD |
2134 | GEN5_RETRIEVE_MUTUAL_PWC_DATA, |
2135 | &data_size, | |
2136 | gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave); | |
2137 | if (error) | |
2138 | return error; | |
2139 | ||
2140 | error = cyapa_gen5_read_idac_data(cyapa, | |
94897619 | 2141 | PIP_RETRIEVE_DATA_STRUCTURE, |
6499d390 DD |
2142 | GEN5_RETRIEVE_MUTUAL_PWC_DATA, |
2143 | &data_size, | |
2144 | lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave); | |
2145 | return error; | |
2146 | } | |
2147 | ||
2148 | static int cyapa_gen5_read_self_idac_data(struct cyapa *cyapa, | |
2149 | int *gidac_self_rx, int *gidac_self_tx, | |
2150 | int *lidac_self_max, int *lidac_self_min, int *lidac_self_ave) | |
2151 | { | |
2152 | int data_size; | |
2153 | int error; | |
2154 | ||
2155 | *gidac_self_rx = *gidac_self_tx = 0; | |
2156 | *lidac_self_max = *lidac_self_min = *lidac_self_ave = 0; | |
2157 | ||
2158 | data_size = 0; | |
2159 | error = cyapa_gen5_read_idac_data(cyapa, | |
94897619 | 2160 | PIP_RETRIEVE_DATA_STRUCTURE, |
6499d390 DD |
2161 | GEN5_RETRIEVE_SELF_CAP_PWC_DATA, |
2162 | &data_size, | |
2163 | lidac_self_max, lidac_self_min, lidac_self_ave); | |
2164 | if (error) | |
2165 | return error; | |
2166 | *gidac_self_rx = *lidac_self_max; | |
2167 | *gidac_self_tx = *lidac_self_min; | |
2168 | ||
2169 | error = cyapa_gen5_read_idac_data(cyapa, | |
94897619 | 2170 | PIP_RETRIEVE_DATA_STRUCTURE, |
6499d390 DD |
2171 | GEN5_RETRIEVE_SELF_CAP_PWC_DATA, |
2172 | &data_size, | |
2173 | lidac_self_max, lidac_self_min, lidac_self_ave); | |
2174 | return error; | |
2175 | } | |
2176 | ||
2177 | static ssize_t cyapa_gen5_execute_panel_scan(struct cyapa *cyapa) | |
2178 | { | |
94897619 | 2179 | struct pip_app_cmd_head *app_cmd_head; |
6499d390 DD |
2180 | u8 cmd[7]; |
2181 | u8 resp_data[6]; | |
2182 | int resp_len; | |
2183 | int error; | |
2184 | ||
2185 | memset(cmd, 0, sizeof(cmd)); | |
94897619 DD |
2186 | app_cmd_head = (struct pip_app_cmd_head *)cmd; |
2187 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); | |
6499d390 | 2188 | put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); |
94897619 | 2189 | app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
6499d390 DD |
2190 | app_cmd_head->cmd_code = GEN5_CMD_EXECUTE_PANEL_SCAN; |
2191 | resp_len = sizeof(resp_data); | |
2192 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
2193 | cmd, sizeof(cmd), | |
2194 | resp_data, &resp_len, | |
94897619 | 2195 | 500, cyapa_sort_tsg_pip_app_resp_data, true); |
6499d390 DD |
2196 | if (error || resp_len != sizeof(resp_data) || |
2197 | !VALID_CMD_RESP_HEADER(resp_data, | |
2198 | GEN5_CMD_EXECUTE_PANEL_SCAN) || | |
94897619 | 2199 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) |
6499d390 DD |
2200 | return error ? error : -EAGAIN; |
2201 | ||
2202 | return 0; | |
2203 | } | |
2204 | ||
2205 | static int cyapa_gen5_read_panel_scan_raw_data(struct cyapa *cyapa, | |
2206 | u8 cmd_code, u8 raw_data_type, int raw_data_max_num, | |
2207 | int *raw_data_max, int *raw_data_min, int *raw_data_ave, | |
2208 | u8 *buffer) | |
2209 | { | |
94897619 | 2210 | struct pip_app_cmd_head *app_cmd_head; |
6499d390 DD |
2211 | struct gen5_retrieve_panel_scan_data *panel_sacn_data; |
2212 | u8 cmd[12]; | |
2213 | u8 resp_data[256]; /* Max bytes can transfer one time. */ | |
2214 | int resp_len; | |
2215 | int read_elements; | |
2216 | int read_len; | |
2217 | u16 offset; | |
2218 | s32 value; | |
2219 | int sum, count; | |
2220 | int data_size; | |
2221 | s32 *intp; | |
2222 | int i; | |
2223 | int error; | |
2224 | ||
2225 | if (cmd_code != GEN5_CMD_RETRIEVE_PANEL_SCAN || | |
2226 | (raw_data_type > GEN5_PANEL_SCAN_SELF_DIFFCOUNT) || | |
2227 | !raw_data_max || !raw_data_min || !raw_data_ave) | |
2228 | return -EINVAL; | |
2229 | ||
2230 | intp = (s32 *)buffer; | |
2231 | *raw_data_max = INT_MIN; | |
2232 | *raw_data_min = INT_MAX; | |
2233 | sum = count = 0; | |
2234 | offset = 0; | |
2235 | /* Assume max element size is 4 currently. */ | |
2236 | read_elements = (256 - GEN5_RESP_DATA_STRUCTURE_OFFSET) / 4; | |
2237 | read_len = read_elements * 4; | |
94897619 DD |
2238 | app_cmd_head = (struct pip_app_cmd_head *)cmd; |
2239 | put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); | |
6499d390 | 2240 | put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); |
94897619 | 2241 | app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; |
6499d390 DD |
2242 | app_cmd_head->cmd_code = cmd_code; |
2243 | panel_sacn_data = (struct gen5_retrieve_panel_scan_data *) | |
2244 | app_cmd_head->parameter_data; | |
2245 | do { | |
2246 | put_unaligned_le16(offset, &panel_sacn_data->read_offset); | |
2247 | put_unaligned_le16(read_elements, | |
2248 | &panel_sacn_data->read_elements); | |
2249 | panel_sacn_data->data_id = raw_data_type; | |
2250 | ||
2251 | resp_len = GEN5_RESP_DATA_STRUCTURE_OFFSET + read_len; | |
2252 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
2253 | cmd, sizeof(cmd), | |
2254 | resp_data, &resp_len, | |
94897619 | 2255 | 500, cyapa_sort_tsg_pip_app_resp_data, true); |
6499d390 DD |
2256 | if (error || resp_len < GEN5_RESP_DATA_STRUCTURE_OFFSET || |
2257 | !VALID_CMD_RESP_HEADER(resp_data, cmd_code) || | |
94897619 | 2258 | !PIP_CMD_COMPLETE_SUCCESS(resp_data) || |
6499d390 DD |
2259 | resp_data[6] != raw_data_type) |
2260 | return error ? error : -EAGAIN; | |
2261 | ||
2262 | read_elements = get_unaligned_le16(&resp_data[7]); | |
2263 | if (read_elements == 0) | |
2264 | break; | |
2265 | ||
2266 | data_size = (resp_data[9] & GEN5_PWC_DATA_ELEMENT_SIZE_MASK); | |
2267 | offset += read_elements; | |
2268 | if (read_elements) { | |
2269 | for (i = GEN5_RESP_DATA_STRUCTURE_OFFSET; | |
2270 | i < (read_elements * data_size + | |
2271 | GEN5_RESP_DATA_STRUCTURE_OFFSET); | |
2272 | i += data_size) { | |
2273 | value = cyapa_parse_structure_data(resp_data[9], | |
2274 | &resp_data[i], data_size); | |
2275 | *raw_data_min = min(value, *raw_data_min); | |
2276 | *raw_data_max = max(value, *raw_data_max); | |
2277 | ||
2278 | if (intp) | |
2279 | put_unaligned_le32(value, &intp[count]); | |
2280 | ||
2281 | sum += value; | |
2282 | count++; | |
2283 | ||
2284 | } | |
2285 | } | |
2286 | ||
2287 | if (count >= raw_data_max_num) | |
2288 | break; | |
2289 | ||
2290 | read_elements = (sizeof(resp_data) - | |
2291 | GEN5_RESP_DATA_STRUCTURE_OFFSET) / data_size; | |
2292 | read_len = read_elements * data_size; | |
2293 | } while (true); | |
2294 | ||
2295 | *raw_data_ave = count ? (sum / count) : 0; | |
2296 | ||
2297 | return 0; | |
2298 | } | |
2299 | ||
2300 | static ssize_t cyapa_gen5_show_baseline(struct device *dev, | |
2301 | struct device_attribute *attr, char *buf) | |
2302 | { | |
2303 | struct cyapa *cyapa = dev_get_drvdata(dev); | |
2304 | int gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave; | |
2305 | int lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave; | |
2306 | int gidac_self_rx, gidac_self_tx; | |
2307 | int lidac_self_max, lidac_self_min, lidac_self_ave; | |
2308 | int raw_cap_mutual_max, raw_cap_mutual_min, raw_cap_mutual_ave; | |
2309 | int raw_cap_self_max, raw_cap_self_min, raw_cap_self_ave; | |
2310 | int mutual_diffdata_max, mutual_diffdata_min, mutual_diffdata_ave; | |
2311 | int self_diffdata_max, self_diffdata_min, self_diffdata_ave; | |
2312 | int mutual_baseline_max, mutual_baseline_min, mutual_baseline_ave; | |
2313 | int self_baseline_max, self_baseline_min, self_baseline_ave; | |
2314 | int error, resume_error; | |
2315 | int size; | |
2316 | ||
94897619 | 2317 | if (!cyapa_is_pip_app_mode(cyapa)) |
6499d390 DD |
2318 | return -EBUSY; |
2319 | ||
2320 | /* 1. Suspend Scanning*/ | |
94897619 | 2321 | error = cyapa_pip_suspend_scanning(cyapa); |
6499d390 DD |
2322 | if (error) |
2323 | return error; | |
2324 | ||
2325 | /* 2. Read global and local mutual IDAC data. */ | |
2326 | gidac_self_rx = gidac_self_tx = 0; | |
2327 | error = cyapa_gen5_read_mutual_idac_data(cyapa, | |
2328 | &gidac_mutual_max, &gidac_mutual_min, | |
2329 | &gidac_mutual_ave, &lidac_mutual_max, | |
2330 | &lidac_mutual_min, &lidac_mutual_ave); | |
2331 | if (error) | |
2332 | goto resume_scanning; | |
2333 | ||
2334 | /* 3. Read global and local self IDAC data. */ | |
2335 | error = cyapa_gen5_read_self_idac_data(cyapa, | |
2336 | &gidac_self_rx, &gidac_self_tx, | |
2337 | &lidac_self_max, &lidac_self_min, | |
2338 | &lidac_self_ave); | |
2339 | if (error) | |
2340 | goto resume_scanning; | |
2341 | ||
94897619 | 2342 | /* 4. Execute panel scan. It must be executed before read data. */ |
6499d390 DD |
2343 | error = cyapa_gen5_execute_panel_scan(cyapa); |
2344 | if (error) | |
2345 | goto resume_scanning; | |
2346 | ||
2347 | /* 5. Retrieve panel scan, mutual cap raw data. */ | |
2348 | error = cyapa_gen5_read_panel_scan_raw_data(cyapa, | |
2349 | GEN5_CMD_RETRIEVE_PANEL_SCAN, | |
2350 | GEN5_PANEL_SCAN_MUTUAL_RAW_DATA, | |
2351 | cyapa->electrodes_x * cyapa->electrodes_y, | |
2352 | &raw_cap_mutual_max, &raw_cap_mutual_min, | |
2353 | &raw_cap_mutual_ave, | |
2354 | NULL); | |
2355 | if (error) | |
2356 | goto resume_scanning; | |
2357 | ||
2358 | /* 6. Retrieve panel scan, self cap raw data. */ | |
2359 | error = cyapa_gen5_read_panel_scan_raw_data(cyapa, | |
2360 | GEN5_CMD_RETRIEVE_PANEL_SCAN, | |
2361 | GEN5_PANEL_SCAN_SELF_RAW_DATA, | |
2362 | cyapa->electrodes_x + cyapa->electrodes_y, | |
2363 | &raw_cap_self_max, &raw_cap_self_min, | |
2364 | &raw_cap_self_ave, | |
2365 | NULL); | |
2366 | if (error) | |
2367 | goto resume_scanning; | |
2368 | ||
2369 | /* 7. Retrieve panel scan, mutual cap diffcount raw data. */ | |
2370 | error = cyapa_gen5_read_panel_scan_raw_data(cyapa, | |
2371 | GEN5_CMD_RETRIEVE_PANEL_SCAN, | |
2372 | GEN5_PANEL_SCAN_MUTUAL_DIFFCOUNT, | |
2373 | cyapa->electrodes_x * cyapa->electrodes_y, | |
2374 | &mutual_diffdata_max, &mutual_diffdata_min, | |
2375 | &mutual_diffdata_ave, | |
2376 | NULL); | |
2377 | if (error) | |
2378 | goto resume_scanning; | |
2379 | ||
2380 | /* 8. Retrieve panel scan, self cap diffcount raw data. */ | |
2381 | error = cyapa_gen5_read_panel_scan_raw_data(cyapa, | |
2382 | GEN5_CMD_RETRIEVE_PANEL_SCAN, | |
2383 | GEN5_PANEL_SCAN_SELF_DIFFCOUNT, | |
2384 | cyapa->electrodes_x + cyapa->electrodes_y, | |
2385 | &self_diffdata_max, &self_diffdata_min, | |
2386 | &self_diffdata_ave, | |
2387 | NULL); | |
2388 | if (error) | |
2389 | goto resume_scanning; | |
2390 | ||
2391 | /* 9. Retrieve panel scan, mutual cap baseline raw data. */ | |
2392 | error = cyapa_gen5_read_panel_scan_raw_data(cyapa, | |
2393 | GEN5_CMD_RETRIEVE_PANEL_SCAN, | |
2394 | GEN5_PANEL_SCAN_MUTUAL_BASELINE, | |
2395 | cyapa->electrodes_x * cyapa->electrodes_y, | |
2396 | &mutual_baseline_max, &mutual_baseline_min, | |
2397 | &mutual_baseline_ave, | |
2398 | NULL); | |
2399 | if (error) | |
2400 | goto resume_scanning; | |
2401 | ||
2402 | /* 10. Retrieve panel scan, self cap baseline raw data. */ | |
2403 | error = cyapa_gen5_read_panel_scan_raw_data(cyapa, | |
2404 | GEN5_CMD_RETRIEVE_PANEL_SCAN, | |
2405 | GEN5_PANEL_SCAN_SELF_BASELINE, | |
2406 | cyapa->electrodes_x + cyapa->electrodes_y, | |
2407 | &self_baseline_max, &self_baseline_min, | |
2408 | &self_baseline_ave, | |
2409 | NULL); | |
2410 | if (error) | |
2411 | goto resume_scanning; | |
2412 | ||
2413 | resume_scanning: | |
2414 | /* 11. Resume Scanning*/ | |
94897619 | 2415 | resume_error = cyapa_pip_resume_scanning(cyapa); |
6499d390 DD |
2416 | if (resume_error || error) |
2417 | return resume_error ? resume_error : error; | |
2418 | ||
2419 | /* 12. Output data strings */ | |
2420 | size = scnprintf(buf, PAGE_SIZE, "%d %d %d %d %d %d %d %d %d %d %d ", | |
2421 | gidac_mutual_min, gidac_mutual_max, gidac_mutual_ave, | |
2422 | lidac_mutual_min, lidac_mutual_max, lidac_mutual_ave, | |
2423 | gidac_self_rx, gidac_self_tx, | |
2424 | lidac_self_min, lidac_self_max, lidac_self_ave); | |
2425 | size += scnprintf(buf + size, PAGE_SIZE - size, | |
2426 | "%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d\n", | |
2427 | raw_cap_mutual_min, raw_cap_mutual_max, raw_cap_mutual_ave, | |
2428 | raw_cap_self_min, raw_cap_self_max, raw_cap_self_ave, | |
2429 | mutual_diffdata_min, mutual_diffdata_max, mutual_diffdata_ave, | |
2430 | self_diffdata_min, self_diffdata_max, self_diffdata_ave, | |
2431 | mutual_baseline_min, mutual_baseline_max, mutual_baseline_ave, | |
2432 | self_baseline_min, self_baseline_max, self_baseline_ave); | |
2433 | return size; | |
2434 | } | |
2435 | ||
94897619 | 2436 | bool cyapa_pip_sort_system_info_data(struct cyapa *cyapa, |
6972a859 DD |
2437 | u8 *buf, int len) |
2438 | { | |
2439 | /* Check the report id and command code */ | |
2440 | if (VALID_CMD_RESP_HEADER(buf, 0x02)) | |
2441 | return true; | |
2442 | ||
2443 | return false; | |
2444 | } | |
2445 | ||
2446 | static int cyapa_gen5_bl_query_data(struct cyapa *cyapa) | |
2447 | { | |
94897619 | 2448 | u8 resp_data[PIP_BL_APP_INFO_RESP_LENGTH]; |
6972a859 DD |
2449 | int resp_len; |
2450 | int error; | |
2451 | ||
94897619 | 2452 | resp_len = sizeof(resp_data); |
6972a859 | 2453 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, |
94897619 | 2454 | pip_bl_read_app_info, PIP_BL_READ_APP_INFO_CMD_LENGTH, |
6972a859 | 2455 | resp_data, &resp_len, |
94897619 DD |
2456 | 500, cyapa_sort_tsg_pip_bl_resp_data, false); |
2457 | if (error || resp_len < PIP_BL_APP_INFO_RESP_LENGTH || | |
2458 | !PIP_CMD_COMPLETE_SUCCESS(resp_data)) | |
6972a859 DD |
2459 | return error ? error : -EIO; |
2460 | ||
2461 | memcpy(&cyapa->product_id[0], &resp_data[8], 5); | |
2462 | cyapa->product_id[5] = '-'; | |
2463 | memcpy(&cyapa->product_id[6], &resp_data[13], 6); | |
2464 | cyapa->product_id[12] = '-'; | |
2465 | memcpy(&cyapa->product_id[13], &resp_data[19], 2); | |
2466 | cyapa->product_id[15] = '\0'; | |
2467 | ||
2468 | cyapa->fw_maj_ver = resp_data[22]; | |
2469 | cyapa->fw_min_ver = resp_data[23]; | |
2470 | ||
c2c06c41 DD |
2471 | cyapa->platform_ver = (resp_data[26] >> PIP_BL_PLATFORM_VER_SHIFT) & |
2472 | PIP_BL_PLATFORM_VER_MASK; | |
2473 | ||
6972a859 DD |
2474 | return 0; |
2475 | } | |
2476 | ||
2477 | static int cyapa_gen5_get_query_data(struct cyapa *cyapa) | |
2478 | { | |
94897619 | 2479 | u8 resp_data[PIP_READ_SYS_INFO_RESP_LENGTH]; |
6972a859 DD |
2480 | int resp_len; |
2481 | u16 product_family; | |
2482 | int error; | |
2483 | ||
2484 | resp_len = sizeof(resp_data); | |
2485 | error = cyapa_i2c_pip_cmd_irq_sync(cyapa, | |
94897619 | 2486 | pip_read_sys_info, PIP_READ_SYS_INFO_CMD_LENGTH, |
6972a859 | 2487 | resp_data, &resp_len, |
94897619 | 2488 | 2000, cyapa_pip_sort_system_info_data, false); |
6972a859 DD |
2489 | if (error || resp_len < sizeof(resp_data)) |
2490 | return error ? error : -EIO; | |
2491 | ||
2492 | product_family = get_unaligned_le16(&resp_data[7]); | |
94897619 DD |
2493 | if ((product_family & PIP_PRODUCT_FAMILY_MASK) != |
2494 | PIP_PRODUCT_FAMILY_TRACKPAD) | |
6972a859 DD |
2495 | return -EINVAL; |
2496 | ||
c2c06c41 DD |
2497 | cyapa->platform_ver = (resp_data[49] >> PIP_BL_PLATFORM_VER_SHIFT) & |
2498 | PIP_BL_PLATFORM_VER_MASK; | |
2499 | if (cyapa->gen == CYAPA_GEN5 && cyapa->platform_ver < 2) { | |
2500 | /* Gen5 firmware that does not support proximity. */ | |
2501 | cyapa->fw_maj_ver = resp_data[15]; | |
2502 | cyapa->fw_min_ver = resp_data[16]; | |
2503 | } else { | |
2504 | cyapa->fw_maj_ver = resp_data[9]; | |
2505 | cyapa->fw_min_ver = resp_data[10]; | |
2506 | } | |
6972a859 DD |
2507 | |
2508 | cyapa->electrodes_x = resp_data[52]; | |
2509 | cyapa->electrodes_y = resp_data[53]; | |
2510 | ||
2511 | cyapa->physical_size_x = get_unaligned_le16(&resp_data[54]) / 100; | |
2512 | cyapa->physical_size_y = get_unaligned_le16(&resp_data[56]) / 100; | |
2513 | ||
2514 | cyapa->max_abs_x = get_unaligned_le16(&resp_data[58]); | |
2515 | cyapa->max_abs_y = get_unaligned_le16(&resp_data[60]); | |
2516 | ||
2517 | cyapa->max_z = get_unaligned_le16(&resp_data[62]); | |
2518 | ||
2519 | cyapa->x_origin = resp_data[64] & 0x01; | |
2520 | cyapa->y_origin = resp_data[65] & 0x01; | |
2521 | ||
2522 | cyapa->btn_capability = (resp_data[70] << 3) & CAPABILITY_BTN_MASK; | |
2523 | ||
2524 | memcpy(&cyapa->product_id[0], &resp_data[33], 5); | |
2525 | cyapa->product_id[5] = '-'; | |
2526 | memcpy(&cyapa->product_id[6], &resp_data[38], 6); | |
2527 | cyapa->product_id[12] = '-'; | |
2528 | memcpy(&cyapa->product_id[13], &resp_data[44], 2); | |
2529 | cyapa->product_id[15] = '\0'; | |
2530 | ||
2531 | if (!cyapa->electrodes_x || !cyapa->electrodes_y || | |
2532 | !cyapa->physical_size_x || !cyapa->physical_size_y || | |
2533 | !cyapa->max_abs_x || !cyapa->max_abs_y || !cyapa->max_z) | |
2534 | return -EINVAL; | |
2535 | ||
2536 | return 0; | |
2537 | } | |
2538 | ||
2539 | static int cyapa_gen5_do_operational_check(struct cyapa *cyapa) | |
2540 | { | |
2541 | struct device *dev = &cyapa->client->dev; | |
2542 | int error; | |
2543 | ||
2544 | if (cyapa->gen != CYAPA_GEN5) | |
2545 | return -ENODEV; | |
2546 | ||
2547 | switch (cyapa->state) { | |
2548 | case CYAPA_STATE_GEN5_BL: | |
94897619 | 2549 | error = cyapa_pip_bl_exit(cyapa); |
6972a859 | 2550 | if (error) { |
94897619 | 2551 | /* Try to update trackpad product information. */ |
6972a859 DD |
2552 | cyapa_gen5_bl_query_data(cyapa); |
2553 | goto out; | |
2554 | } | |
2555 | ||
2556 | cyapa->state = CYAPA_STATE_GEN5_APP; | |
2557 | ||
2558 | case CYAPA_STATE_GEN5_APP: | |
2559 | /* | |
2560 | * If trackpad device in deep sleep mode, | |
2561 | * the app command will fail. | |
2562 | * So always try to reset trackpad device to full active when | |
94897619 | 2563 | * the device state is required. |
6972a859 DD |
2564 | */ |
2565 | error = cyapa_gen5_set_power_mode(cyapa, | |
3cd47869 | 2566 | PWR_MODE_FULL_ACTIVE, 0, CYAPA_PM_ACTIVE); |
6972a859 DD |
2567 | if (error) |
2568 | dev_warn(dev, "%s: failed to set power active mode.\n", | |
2569 | __func__); | |
2570 | ||
945525ee | 2571 | /* By default, the trackpad proximity function is enabled. */ |
0642ffd6 DD |
2572 | if (cyapa->platform_ver >= 2) { |
2573 | error = cyapa_pip_set_proximity(cyapa, true); | |
2574 | if (error) | |
2575 | dev_warn(dev, | |
2576 | "%s: failed to enable proximity.\n", | |
2577 | __func__); | |
2578 | } | |
945525ee | 2579 | |
6972a859 DD |
2580 | /* Get trackpad product information. */ |
2581 | error = cyapa_gen5_get_query_data(cyapa); | |
2582 | if (error) | |
2583 | goto out; | |
2584 | /* Only support product ID starting with CYTRA */ | |
2585 | if (memcmp(cyapa->product_id, product_id, | |
2586 | strlen(product_id)) != 0) { | |
2587 | dev_err(dev, "%s: unknown product ID (%s)\n", | |
2588 | __func__, cyapa->product_id); | |
2589 | error = -EINVAL; | |
2590 | } | |
2591 | break; | |
2592 | default: | |
2593 | error = -EINVAL; | |
2594 | } | |
2595 | ||
2596 | out: | |
2597 | return error; | |
2598 | } | |
2599 | ||
2600 | /* | |
2601 | * Return false, do not continue process | |
2602 | * Return true, continue process. | |
2603 | */ | |
94897619 | 2604 | bool cyapa_pip_irq_cmd_handler(struct cyapa *cyapa) |
6972a859 | 2605 | { |
94897619 | 2606 | struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; |
6972a859 DD |
2607 | int length; |
2608 | ||
94897619 | 2609 | if (atomic_read(&pip->cmd_issued)) { |
6972a859 | 2610 | /* Polling command response data. */ |
94897619 | 2611 | if (pip->is_irq_mode == false) |
6972a859 DD |
2612 | return false; |
2613 | ||
2614 | /* | |
2615 | * Read out all none command response data. | |
2616 | * these output data may caused by user put finger on | |
2617 | * trackpad when host waiting the command response. | |
2618 | */ | |
94897619 DD |
2619 | cyapa_i2c_pip_read(cyapa, pip->irq_cmd_buf, |
2620 | PIP_RESP_LENGTH_SIZE); | |
2621 | length = get_unaligned_le16(pip->irq_cmd_buf); | |
2622 | length = (length <= PIP_RESP_LENGTH_SIZE) ? | |
2623 | PIP_RESP_LENGTH_SIZE : length; | |
2624 | if (length > PIP_RESP_LENGTH_SIZE) | |
6972a859 | 2625 | cyapa_i2c_pip_read(cyapa, |
94897619 DD |
2626 | pip->irq_cmd_buf, length); |
2627 | if (!(pip->resp_sort_func && | |
2628 | pip->resp_sort_func(cyapa, | |
2629 | pip->irq_cmd_buf, length))) { | |
6972a859 | 2630 | /* |
94897619 DD |
2631 | * Cover the Gen5 V1 firmware issue. |
2632 | * The issue is no interrupt would be asserted from | |
2633 | * trackpad device to host for the command response | |
2634 | * ready event. Because when there was a finger touch | |
2635 | * on trackpad device, and the firmware output queue | |
2636 | * won't be empty (always with touch report data), so | |
2637 | * the interrupt signal won't be asserted again until | |
2638 | * the output queue was previous emptied. | |
2639 | * This issue would happen in the scenario that | |
2640 | * user always has his/her fingers touched on the | |
2641 | * trackpad device during system booting/rebooting. | |
6972a859 | 2642 | */ |
a535a9f1 | 2643 | length = 0; |
94897619 DD |
2644 | if (pip->resp_len) |
2645 | length = *pip->resp_len; | |
6972a859 | 2646 | cyapa_empty_pip_output_data(cyapa, |
94897619 | 2647 | pip->resp_data, |
6972a859 | 2648 | &length, |
94897619 DD |
2649 | pip->resp_sort_func); |
2650 | if (pip->resp_len && length != 0) { | |
2651 | *pip->resp_len = length; | |
2652 | atomic_dec(&pip->cmd_issued); | |
2653 | complete(&pip->cmd_ready); | |
6972a859 DD |
2654 | } |
2655 | return false; | |
2656 | } | |
2657 | ||
94897619 DD |
2658 | if (pip->resp_data && pip->resp_len) { |
2659 | *pip->resp_len = (*pip->resp_len < length) ? | |
2660 | *pip->resp_len : length; | |
2661 | memcpy(pip->resp_data, pip->irq_cmd_buf, | |
2662 | *pip->resp_len); | |
6972a859 | 2663 | } |
94897619 DD |
2664 | atomic_dec(&pip->cmd_issued); |
2665 | complete(&pip->cmd_ready); | |
6972a859 DD |
2666 | return false; |
2667 | } | |
2668 | ||
2669 | return true; | |
2670 | } | |
2671 | ||
94897619 DD |
2672 | static void cyapa_pip_report_buttons(struct cyapa *cyapa, |
2673 | const struct cyapa_pip_report_data *report_data) | |
6972a859 DD |
2674 | { |
2675 | struct input_dev *input = cyapa->input; | |
94897619 | 2676 | u8 buttons = report_data->report_head[PIP_BUTTONS_OFFSET]; |
6972a859 DD |
2677 | |
2678 | buttons = (buttons << CAPABILITY_BTN_SHIFT) & CAPABILITY_BTN_MASK; | |
2679 | ||
2680 | if (cyapa->btn_capability & CAPABILITY_LEFT_BTN_MASK) { | |
2681 | input_report_key(input, BTN_LEFT, | |
2682 | !!(buttons & CAPABILITY_LEFT_BTN_MASK)); | |
2683 | } | |
2684 | if (cyapa->btn_capability & CAPABILITY_MIDDLE_BTN_MASK) { | |
2685 | input_report_key(input, BTN_MIDDLE, | |
2686 | !!(buttons & CAPABILITY_MIDDLE_BTN_MASK)); | |
2687 | } | |
2688 | if (cyapa->btn_capability & CAPABILITY_RIGHT_BTN_MASK) { | |
2689 | input_report_key(input, BTN_RIGHT, | |
2690 | !!(buttons & CAPABILITY_RIGHT_BTN_MASK)); | |
2691 | } | |
2692 | ||
2693 | input_sync(input); | |
2694 | } | |
2695 | ||
945525ee DD |
2696 | static void cyapa_pip_report_proximity(struct cyapa *cyapa, |
2697 | const struct cyapa_pip_report_data *report_data) | |
2698 | { | |
2699 | struct input_dev *input = cyapa->input; | |
2700 | u8 distance = report_data->report_head[PIP_PROXIMITY_DISTANCE_OFFSET] & | |
2701 | PIP_PROXIMITY_DISTANCE_MASK; | |
2702 | ||
2703 | input_report_abs(input, ABS_DISTANCE, distance); | |
2704 | input_sync(input); | |
2705 | } | |
2706 | ||
94897619 DD |
2707 | static void cyapa_pip_report_slot_data(struct cyapa *cyapa, |
2708 | const struct cyapa_pip_touch_record *touch) | |
6972a859 DD |
2709 | { |
2710 | struct input_dev *input = cyapa->input; | |
94897619 DD |
2711 | u8 event_id = PIP_GET_EVENT_ID(touch->touch_tip_event_id); |
2712 | int slot = PIP_GET_TOUCH_ID(touch->touch_tip_event_id); | |
6972a859 DD |
2713 | int x, y; |
2714 | ||
2715 | if (event_id == RECORD_EVENT_LIFTOFF) | |
2716 | return; | |
2717 | ||
2718 | input_mt_slot(input, slot); | |
2719 | input_mt_report_slot_state(input, MT_TOOL_FINGER, true); | |
2720 | x = (touch->x_hi << 8) | touch->x_lo; | |
2721 | if (cyapa->x_origin) | |
2722 | x = cyapa->max_abs_x - x; | |
6972a859 DD |
2723 | y = (touch->y_hi << 8) | touch->y_lo; |
2724 | if (cyapa->y_origin) | |
2725 | y = cyapa->max_abs_y - y; | |
94897619 | 2726 | input_report_abs(input, ABS_MT_POSITION_X, x); |
6972a859 | 2727 | input_report_abs(input, ABS_MT_POSITION_Y, y); |
945525ee | 2728 | input_report_abs(input, ABS_DISTANCE, 0); |
6972a859 DD |
2729 | input_report_abs(input, ABS_MT_PRESSURE, |
2730 | touch->z); | |
2731 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, | |
2732 | touch->major_axis_len); | |
2733 | input_report_abs(input, ABS_MT_TOUCH_MINOR, | |
2734 | touch->minor_axis_len); | |
2735 | ||
2736 | input_report_abs(input, ABS_MT_WIDTH_MAJOR, | |
2737 | touch->major_tool_len); | |
2738 | input_report_abs(input, ABS_MT_WIDTH_MINOR, | |
2739 | touch->minor_tool_len); | |
2740 | ||
2741 | input_report_abs(input, ABS_MT_ORIENTATION, | |
2742 | touch->orientation); | |
2743 | } | |
2744 | ||
94897619 DD |
2745 | static void cyapa_pip_report_touches(struct cyapa *cyapa, |
2746 | const struct cyapa_pip_report_data *report_data) | |
6972a859 DD |
2747 | { |
2748 | struct input_dev *input = cyapa->input; | |
2749 | unsigned int touch_num; | |
2750 | int i; | |
2751 | ||
94897619 DD |
2752 | touch_num = report_data->report_head[PIP_NUMBER_OF_TOUCH_OFFSET] & |
2753 | PIP_NUMBER_OF_TOUCH_MASK; | |
6972a859 DD |
2754 | |
2755 | for (i = 0; i < touch_num; i++) | |
94897619 | 2756 | cyapa_pip_report_slot_data(cyapa, |
6972a859 DD |
2757 | &report_data->touch_records[i]); |
2758 | ||
2759 | input_mt_sync_frame(input); | |
2760 | input_sync(input); | |
2761 | } | |
2762 | ||
94897619 | 2763 | int cyapa_pip_irq_handler(struct cyapa *cyapa) |
6972a859 DD |
2764 | { |
2765 | struct device *dev = &cyapa->client->dev; | |
94897619 | 2766 | struct cyapa_pip_report_data report_data; |
6972a859 | 2767 | unsigned int report_len; |
94897619 | 2768 | int ret; |
6972a859 | 2769 | |
94897619 | 2770 | if (!cyapa_is_pip_app_mode(cyapa)) { |
6972a859 DD |
2771 | dev_err(dev, "invalid device state, gen=%d, state=0x%02x\n", |
2772 | cyapa->gen, cyapa->state); | |
2773 | return -EINVAL; | |
2774 | } | |
2775 | ||
2776 | ret = cyapa_i2c_pip_read(cyapa, (u8 *)&report_data, | |
94897619 DD |
2777 | PIP_RESP_LENGTH_SIZE); |
2778 | if (ret != PIP_RESP_LENGTH_SIZE) { | |
6972a859 DD |
2779 | dev_err(dev, "failed to read length bytes, (%d)\n", ret); |
2780 | return -EINVAL; | |
2781 | } | |
2782 | ||
2783 | report_len = get_unaligned_le16( | |
94897619 DD |
2784 | &report_data.report_head[PIP_RESP_LENGTH_OFFSET]); |
2785 | if (report_len < PIP_RESP_LENGTH_SIZE) { | |
2786 | /* Invalid length or internal reset happened. */ | |
6972a859 DD |
2787 | dev_err(dev, "invalid report_len=%d. bytes: %02x %02x\n", |
2788 | report_len, report_data.report_head[0], | |
2789 | report_data.report_head[1]); | |
2790 | return -EINVAL; | |
2791 | } | |
2792 | ||
2793 | /* Idle, no data for report. */ | |
94897619 | 2794 | if (report_len == PIP_RESP_LENGTH_SIZE) |
6972a859 DD |
2795 | return 0; |
2796 | ||
2797 | ret = cyapa_i2c_pip_read(cyapa, (u8 *)&report_data, report_len); | |
2798 | if (ret != report_len) { | |
2799 | dev_err(dev, "failed to read %d bytes report data, (%d)\n", | |
2800 | report_len, ret); | |
2801 | return -EINVAL; | |
2802 | } | |
2803 | ||
3cd47869 DD |
2804 | return cyapa_pip_event_process(cyapa, &report_data); |
2805 | } | |
2806 | ||
2807 | static int cyapa_pip_event_process(struct cyapa *cyapa, | |
2808 | struct cyapa_pip_report_data *report_data) | |
2809 | { | |
2810 | struct device *dev = &cyapa->client->dev; | |
2811 | unsigned int report_len; | |
2812 | u8 report_id; | |
2813 | ||
2814 | report_len = get_unaligned_le16( | |
2815 | &report_data->report_head[PIP_RESP_LENGTH_OFFSET]); | |
2816 | /* Idle, no data for report. */ | |
2817 | if (report_len == PIP_RESP_LENGTH_SIZE) | |
2818 | return 0; | |
2819 | ||
2820 | report_id = report_data->report_head[PIP_RESP_REPORT_ID_OFFSET]; | |
94897619 DD |
2821 | if (report_id == PIP_WAKEUP_EVENT_REPORT_ID && |
2822 | report_len == PIP_WAKEUP_EVENT_SIZE) { | |
6972a859 DD |
2823 | /* |
2824 | * Device wake event from deep sleep mode for touch. | |
2825 | * This interrupt event is used to wake system up. | |
757cae5a DD |
2826 | * |
2827 | * Note: | |
2828 | * It will introduce about 20~40 ms additional delay | |
2829 | * time in receiving for first valid touch report data. | |
2830 | * The time is used to execute device runtime resume | |
2831 | * process. | |
6972a859 | 2832 | */ |
757cae5a DD |
2833 | pm_runtime_get_sync(dev); |
2834 | pm_runtime_mark_last_busy(dev); | |
2835 | pm_runtime_put_sync_autosuspend(dev); | |
6972a859 | 2836 | return 0; |
94897619 DD |
2837 | } else if (report_id != PIP_TOUCH_REPORT_ID && |
2838 | report_id != PIP_BTN_REPORT_ID && | |
6972a859 | 2839 | report_id != GEN5_OLD_PUSH_BTN_REPORT_ID && |
945525ee DD |
2840 | report_id != PIP_PUSH_BTN_REPORT_ID && |
2841 | report_id != PIP_PROXIMITY_REPORT_ID) { | |
6972a859 DD |
2842 | /* Running in BL mode or unknown response data read. */ |
2843 | dev_err(dev, "invalid report_id=0x%02x\n", report_id); | |
2844 | return -EINVAL; | |
2845 | } | |
2846 | ||
94897619 DD |
2847 | if (report_id == PIP_TOUCH_REPORT_ID && |
2848 | (report_len < PIP_TOUCH_REPORT_HEAD_SIZE || | |
2849 | report_len > PIP_TOUCH_REPORT_MAX_SIZE)) { | |
6972a859 DD |
2850 | /* Invalid report data length for finger packet. */ |
2851 | dev_err(dev, "invalid touch packet length=%d\n", report_len); | |
2852 | return 0; | |
2853 | } | |
2854 | ||
94897619 | 2855 | if ((report_id == PIP_BTN_REPORT_ID || |
6972a859 | 2856 | report_id == GEN5_OLD_PUSH_BTN_REPORT_ID || |
94897619 DD |
2857 | report_id == PIP_PUSH_BTN_REPORT_ID) && |
2858 | (report_len < PIP_BTN_REPORT_HEAD_SIZE || | |
2859 | report_len > PIP_BTN_REPORT_MAX_SIZE)) { | |
6972a859 DD |
2860 | /* Invalid report data length of button packet. */ |
2861 | dev_err(dev, "invalid button packet length=%d\n", report_len); | |
2862 | return 0; | |
2863 | } | |
2864 | ||
945525ee DD |
2865 | if (report_id == PIP_PROXIMITY_REPORT_ID && |
2866 | report_len != PIP_PROXIMITY_REPORT_SIZE) { | |
2867 | /* Invalid report data length of proximity packet. */ | |
2868 | dev_err(dev, "invalid proximity data, length=%d\n", report_len); | |
2869 | return 0; | |
2870 | } | |
2871 | ||
94897619 | 2872 | if (report_id == PIP_TOUCH_REPORT_ID) |
3cd47869 | 2873 | cyapa_pip_report_touches(cyapa, report_data); |
945525ee | 2874 | else if (report_id == PIP_PROXIMITY_REPORT_ID) |
3cd47869 | 2875 | cyapa_pip_report_proximity(cyapa, report_data); |
6972a859 | 2876 | else |
3cd47869 | 2877 | cyapa_pip_report_buttons(cyapa, report_data); |
6972a859 DD |
2878 | |
2879 | return 0; | |
2880 | } | |
2881 | ||
94897619 DD |
2882 | int cyapa_pip_bl_activate(struct cyapa *cyapa) { return 0; } |
2883 | int cyapa_pip_bl_deactivate(struct cyapa *cyapa) { return 0; } | |
2884 | ||
5812d306 | 2885 | |
6972a859 | 2886 | const struct cyapa_dev_ops cyapa_gen5_ops = { |
94897619 DD |
2887 | .check_fw = cyapa_pip_check_fw, |
2888 | .bl_enter = cyapa_pip_bl_enter, | |
2889 | .bl_initiate = cyapa_pip_bl_initiate, | |
2890 | .update_fw = cyapa_pip_do_fw_update, | |
2891 | .bl_activate = cyapa_pip_bl_activate, | |
2892 | .bl_deactivate = cyapa_pip_bl_deactivate, | |
5812d306 | 2893 | |
6499d390 | 2894 | .show_baseline = cyapa_gen5_show_baseline, |
94897619 | 2895 | .calibrate_store = cyapa_pip_do_calibrate, |
6499d390 | 2896 | |
94897619 | 2897 | .initialize = cyapa_pip_cmd_state_initialize, |
6972a859 DD |
2898 | |
2899 | .state_parse = cyapa_gen5_state_parse, | |
2900 | .operational_check = cyapa_gen5_do_operational_check, | |
2901 | ||
94897619 DD |
2902 | .irq_handler = cyapa_pip_irq_handler, |
2903 | .irq_cmd_handler = cyapa_pip_irq_cmd_handler, | |
6972a859 DD |
2904 | .sort_empty_output_data = cyapa_empty_pip_output_data, |
2905 | .set_power_mode = cyapa_gen5_set_power_mode, | |
945525ee DD |
2906 | |
2907 | .set_proximity = cyapa_pip_set_proximity, | |
6972a859 | 2908 | }; |