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19#include "m5602_s5k4aa.h"
20
21static int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
22static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
23static int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
24static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
25static int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
26static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
27static int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
28static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val);
29static int s5k4aa_get_noise(struct gspca_dev *gspca_dev, __s32 *val);
30static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val);
31static int s5k4aa_get_brightness(struct gspca_dev *gspca_dev, __s32 *val);
32static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val);
33
34static
35 const
36 struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
37 {
38 .ident = "BRUNEINIT",
39 .matches = {
40 DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"),
41 DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"),
42 DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001")
43 }
44 }, {
45 .ident = "Fujitsu-Siemens Amilo Xa 2528",
46 .matches = {
47 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
48 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
49 }
50 }, {
51 .ident = "Fujitsu-Siemens Amilo Xi 2528",
52 .matches = {
53 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
54 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528")
55 }
56 }, {
57 .ident = "Fujitsu-Siemens Amilo Xi 2550",
58 .matches = {
59 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
60 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
61 }
62 }, {
63 .ident = "Fujitsu-Siemens Amilo Pa 2548",
64 .matches = {
65 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
66 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548")
67 }
68 }, {
69 .ident = "MSI GX700",
70 .matches = {
71 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
72 DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
73 DMI_MATCH(DMI_BIOS_DATE, "12/02/2008")
74 }
75 }, {
76 .ident = "MSI GX700",
77 .matches = {
78 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
79 DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
80 DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
81 }
82 }, {
83 .ident = "MSI GX700",
84 .matches = {
85 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
86 DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
87 DMI_MATCH(DMI_BIOS_DATE, "07/19/2007")
88 }
89 }, {
90 .ident = "MSI GX700/GX705/EX700",
91 .matches = {
92 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
93 DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
94 }
95 }, {
96 .ident = "MSI L735",
97 .matches = {
98 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
99 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X")
100 }
101 }, {
102 .ident = "Lenovo Y300",
103 .matches = {
104 DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"),
105 DMI_MATCH(DMI_PRODUCT_NAME, "Y300")
106 }
107 },
108 { }
109};
110
111static struct v4l2_pix_format s5k4aa_modes[] = {
112 {
113 640,
114 480,
115 V4L2_PIX_FMT_SBGGR8,
116 V4L2_FIELD_NONE,
117 .sizeimage =
118 640 * 480,
119 .bytesperline = 640,
120 .colorspace = V4L2_COLORSPACE_SRGB,
121 .priv = 0
122 },
123 {
124 1280,
125 1024,
126 V4L2_PIX_FMT_SBGGR8,
127 V4L2_FIELD_NONE,
128 .sizeimage =
129 1280 * 1024,
130 .bytesperline = 1280,
131 .colorspace = V4L2_COLORSPACE_SRGB,
132 .priv = 0
133 }
134};
135
136static const struct ctrl s5k4aa_ctrls[] = {
137#define VFLIP_IDX 0
138 {
139 {
140 .id = V4L2_CID_VFLIP,
141 .type = V4L2_CTRL_TYPE_BOOLEAN,
142 .name = "vertical flip",
143 .minimum = 0,
144 .maximum = 1,
145 .step = 1,
146 .default_value = 0
147 },
148 .set = s5k4aa_set_vflip,
149 .get = s5k4aa_get_vflip
150 },
151#define HFLIP_IDX 1
152 {
153 {
154 .id = V4L2_CID_HFLIP,
155 .type = V4L2_CTRL_TYPE_BOOLEAN,
156 .name = "horizontal flip",
157 .minimum = 0,
158 .maximum = 1,
159 .step = 1,
160 .default_value = 0
161 },
162 .set = s5k4aa_set_hflip,
163 .get = s5k4aa_get_hflip
164 },
165#define GAIN_IDX 2
166 {
167 {
168 .id = V4L2_CID_GAIN,
169 .type = V4L2_CTRL_TYPE_INTEGER,
170 .name = "Gain",
171 .minimum = 0,
172 .maximum = 127,
173 .step = 1,
174 .default_value = S5K4AA_DEFAULT_GAIN,
175 .flags = V4L2_CTRL_FLAG_SLIDER
176 },
177 .set = s5k4aa_set_gain,
178 .get = s5k4aa_get_gain
179 },
180#define EXPOSURE_IDX 3
181 {
182 {
183 .id = V4L2_CID_EXPOSURE,
184 .type = V4L2_CTRL_TYPE_INTEGER,
185 .name = "Exposure",
186 .minimum = 13,
187 .maximum = 0xfff,
188 .step = 1,
189 .default_value = 0x100,
190 .flags = V4L2_CTRL_FLAG_SLIDER
191 },
192 .set = s5k4aa_set_exposure,
193 .get = s5k4aa_get_exposure
194 },
195#define NOISE_SUPP_IDX 4
196 {
197 {
198 .id = V4L2_CID_PRIVATE_BASE,
199 .type = V4L2_CTRL_TYPE_BOOLEAN,
200 .name = "Noise suppression (smoothing)",
201 .minimum = 0,
202 .maximum = 1,
203 .step = 1,
204 .default_value = 1,
205 },
206 .set = s5k4aa_set_noise,
207 .get = s5k4aa_get_noise
208 },
209#define BRIGHTNESS_IDX 5
210 {
211 {
212 .id = V4L2_CID_BRIGHTNESS,
213 .type = V4L2_CTRL_TYPE_INTEGER,
214 .name = "Brightness",
215 .minimum = 0,
216 .maximum = 0x1f,
217 .step = 1,
218 .default_value = S5K4AA_DEFAULT_BRIGHTNESS,
219 },
220 .set = s5k4aa_set_brightness,
221 .get = s5k4aa_get_brightness
222 },
223
224};
225
226static void s5k4aa_dump_registers(struct sd *sd);
227
228int s5k4aa_probe(struct sd *sd)
229{
230 u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
231 const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
232 int i, err = 0;
233 s32 *sensor_settings;
234
235 if (force_sensor) {
236 if (force_sensor == S5K4AA_SENSOR) {
237 info("Forcing a %s sensor", s5k4aa.name);
238 goto sensor_found;
239 }
240
241
242 return -ENODEV;
243 }
244
245 info("Probing for a s5k4aa sensor");
246
247
248 for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
249 u8 data[2] = {0x00, 0x00};
250
251 switch (preinit_s5k4aa[i][0]) {
252 case BRIDGE:
253 err = m5602_write_bridge(sd,
254 preinit_s5k4aa[i][1],
255 preinit_s5k4aa[i][2]);
256 break;
257
258 case SENSOR:
259 data[0] = preinit_s5k4aa[i][2];
260 err = m5602_write_sensor(sd,
261 preinit_s5k4aa[i][1],
262 data, 1);
263 break;
264
265 case SENSOR_LONG:
266 data[0] = preinit_s5k4aa[i][2];
267 data[1] = preinit_s5k4aa[i][3];
268 err = m5602_write_sensor(sd,
269 preinit_s5k4aa[i][1],
270 data, 2);
271 break;
272 default:
273 info("Invalid stream command, exiting init");
274 return -EINVAL;
275 }
276 }
277
278
279 if (m5602_read_sensor(sd, 0x00, prod_id, 2))
280 return -ENODEV;
281 if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
282 return -ENODEV;
283 if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
284 return -ENODEV;
285
286 if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
287 return -ENODEV;
288 else
289 info("Detected a s5k4aa sensor");
290
291sensor_found:
292 sensor_settings = kmalloc(
293 ARRAY_SIZE(s5k4aa_ctrls) * sizeof(s32), GFP_KERNEL);
294 if (!sensor_settings)
295 return -ENOMEM;
296
297 sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
298 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
299 sd->desc->ctrls = s5k4aa_ctrls;
300 sd->desc->nctrls = ARRAY_SIZE(s5k4aa_ctrls);
301
302 for (i = 0; i < ARRAY_SIZE(s5k4aa_ctrls); i++)
303 sensor_settings[i] = s5k4aa_ctrls[i].qctrl.default_value;
304 sd->sensor_priv = sensor_settings;
305
306 return 0;
307}
308
309int s5k4aa_start(struct sd *sd)
310{
311 int i, err = 0;
312 u8 data[2];
313 struct cam *cam = &sd->gspca_dev.cam;
314 s32 *sensor_settings = sd->sensor_priv;
315
316 switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
317 case 1280:
318 PDEBUG(D_V4L2, "Configuring camera for SXGA mode");
319
320 for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) {
321 switch (SXGA_s5k4aa[i][0]) {
322 case BRIDGE:
323 err = m5602_write_bridge(sd,
324 SXGA_s5k4aa[i][1],
325 SXGA_s5k4aa[i][2]);
326 break;
327
328 case SENSOR:
329 data[0] = SXGA_s5k4aa[i][2];
330 err = m5602_write_sensor(sd,
331 SXGA_s5k4aa[i][1],
332 data, 1);
333 break;
334
335 case SENSOR_LONG:
336 data[0] = SXGA_s5k4aa[i][2];
337 data[1] = SXGA_s5k4aa[i][3];
338 err = m5602_write_sensor(sd,
339 SXGA_s5k4aa[i][1],
340 data, 2);
341 break;
342
343 default:
344 err("Invalid stream command, exiting init");
345 return -EINVAL;
346 }
347 }
348 err = s5k4aa_set_noise(&sd->gspca_dev, 0);
349 if (err < 0)
350 return err;
351 break;
352
353 case 640:
354 PDEBUG(D_V4L2, "Configuring camera for VGA mode");
355
356 for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
357 switch (VGA_s5k4aa[i][0]) {
358 case BRIDGE:
359 err = m5602_write_bridge(sd,
360 VGA_s5k4aa[i][1],
361 VGA_s5k4aa[i][2]);
362 break;
363
364 case SENSOR:
365 data[0] = VGA_s5k4aa[i][2];
366 err = m5602_write_sensor(sd,
367 VGA_s5k4aa[i][1],
368 data, 1);
369 break;
370
371 case SENSOR_LONG:
372 data[0] = VGA_s5k4aa[i][2];
373 data[1] = VGA_s5k4aa[i][3];
374 err = m5602_write_sensor(sd,
375 VGA_s5k4aa[i][1],
376 data, 2);
377 break;
378
379 default:
380 err("Invalid stream command, exiting init");
381 return -EINVAL;
382 }
383 }
384 err = s5k4aa_set_noise(&sd->gspca_dev, 1);
385 if (err < 0)
386 return err;
387 break;
388 }
389 if (err < 0)
390 return err;
391
392 err = s5k4aa_set_exposure(&sd->gspca_dev,
393 sensor_settings[EXPOSURE_IDX]);
394 if (err < 0)
395 return err;
396
397 err = s5k4aa_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
398 if (err < 0)
399 return err;
400
401 err = s5k4aa_set_brightness(&sd->gspca_dev,
402 sensor_settings[BRIGHTNESS_IDX]);
403 if (err < 0)
404 return err;
405
406 err = s5k4aa_set_noise(&sd->gspca_dev, sensor_settings[NOISE_SUPP_IDX]);
407 if (err < 0)
408 return err;
409
410 err = s5k4aa_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
411 if (err < 0)
412 return err;
413
414 return s5k4aa_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
415}
416
417int s5k4aa_init(struct sd *sd)
418{
419 int i, err = 0;
420
421 for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
422 u8 data[2] = {0x00, 0x00};
423
424 switch (init_s5k4aa[i][0]) {
425 case BRIDGE:
426 err = m5602_write_bridge(sd,
427 init_s5k4aa[i][1],
428 init_s5k4aa[i][2]);
429 break;
430
431 case SENSOR:
432 data[0] = init_s5k4aa[i][2];
433 err = m5602_write_sensor(sd,
434 init_s5k4aa[i][1], data, 1);
435 break;
436
437 case SENSOR_LONG:
438 data[0] = init_s5k4aa[i][2];
439 data[1] = init_s5k4aa[i][3];
440 err = m5602_write_sensor(sd,
441 init_s5k4aa[i][1], data, 2);
442 break;
443 default:
444 info("Invalid stream command, exiting init");
445 return -EINVAL;
446 }
447 }
448
449 if (dump_sensor)
450 s5k4aa_dump_registers(sd);
451
452 return err;
453}
454
455static int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
456{
457 struct sd *sd = (struct sd *) gspca_dev;
458 s32 *sensor_settings = sd->sensor_priv;
459
460 *val = sensor_settings[EXPOSURE_IDX];
461 PDEBUG(D_V4L2, "Read exposure %d", *val);
462
463 return 0;
464}
465
466static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
467{
468 struct sd *sd = (struct sd *) gspca_dev;
469 s32 *sensor_settings = sd->sensor_priv;
470 u8 data = S5K4AA_PAGE_MAP_2;
471 int err;
472
473 sensor_settings[EXPOSURE_IDX] = val;
474 PDEBUG(D_V4L2, "Set exposure to %d", val);
475 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
476 if (err < 0)
477 return err;
478 data = (val >> 8) & 0xff;
479 err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
480 if (err < 0)
481 return err;
482 data = val & 0xff;
483 err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
484
485 return err;
486}
487
488static int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
489{
490 struct sd *sd = (struct sd *) gspca_dev;
491 s32 *sensor_settings = sd->sensor_priv;
492
493 *val = sensor_settings[VFLIP_IDX];
494 PDEBUG(D_V4L2, "Read vertical flip %d", *val);
495
496 return 0;
497}
498
499static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
500{
501 struct sd *sd = (struct sd *) gspca_dev;
502 s32 *sensor_settings = sd->sensor_priv;
503 u8 data = S5K4AA_PAGE_MAP_2;
504 int err;
505
506 sensor_settings[VFLIP_IDX] = val;
507
508 PDEBUG(D_V4L2, "Set vertical flip to %d", val);
509 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
510 if (err < 0)
511 return err;
512
513 err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
514 if (err < 0)
515 return err;
516
517 if (dmi_check_system(s5k4aa_vflip_dmi_table))
518 val = !val;
519
520 data = ((data & ~S5K4AA_RM_V_FLIP) | ((val & 0x01) << 7));
521 err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
522 if (err < 0)
523 return err;
524
525 err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
526 if (err < 0)
527 return err;
528 data = (data & 0xfe) | !val;
529 err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
530 return err;
531}
532
533static int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
534{
535 struct sd *sd = (struct sd *) gspca_dev;
536 s32 *sensor_settings = sd->sensor_priv;
537
538 *val = sensor_settings[HFLIP_IDX];
539 PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
540
541 return 0;
542}
543
544static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
545{
546 struct sd *sd = (struct sd *) gspca_dev;
547 s32 *sensor_settings = sd->sensor_priv;
548 u8 data = S5K4AA_PAGE_MAP_2;
549 int err;
550
551 sensor_settings[HFLIP_IDX] = val;
552
553 PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
554 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
555 if (err < 0)
556 return err;
557
558 err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
559 if (err < 0)
560 return err;
561
562 if (dmi_check_system(s5k4aa_vflip_dmi_table))
563 val = !val;
564
565 data = ((data & ~S5K4AA_RM_H_FLIP) | ((val & 0x01) << 6));
566 err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
567 if (err < 0)
568 return err;
569
570 err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
571 if (err < 0)
572 return err;
573 data = (data & 0xfe) | !val;
574 err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
575 return err;
576}
577
578static int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
579{
580 struct sd *sd = (struct sd *) gspca_dev;
581 s32 *sensor_settings = sd->sensor_priv;
582
583 *val = sensor_settings[GAIN_IDX];
584 PDEBUG(D_V4L2, "Read gain %d", *val);
585 return 0;
586}
587
588static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
589{
590 struct sd *sd = (struct sd *) gspca_dev;
591 s32 *sensor_settings = sd->sensor_priv;
592 u8 data = S5K4AA_PAGE_MAP_2;
593 int err;
594
595 sensor_settings[GAIN_IDX] = val;
596
597 PDEBUG(D_V4L2, "Set gain to %d", val);
598 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
599 if (err < 0)
600 return err;
601
602 data = val & 0xff;
603 err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1);
604
605 return err;
606}
607
608static int s5k4aa_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
609{
610 struct sd *sd = (struct sd *) gspca_dev;
611 s32 *sensor_settings = sd->sensor_priv;
612
613 *val = sensor_settings[BRIGHTNESS_IDX];
614 PDEBUG(D_V4L2, "Read brightness %d", *val);
615 return 0;
616}
617
618static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
619{
620 struct sd *sd = (struct sd *) gspca_dev;
621 s32 *sensor_settings = sd->sensor_priv;
622 u8 data = S5K4AA_PAGE_MAP_2;
623 int err;
624
625 sensor_settings[BRIGHTNESS_IDX] = val;
626
627 PDEBUG(D_V4L2, "Set brightness to %d", val);
628 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
629 if (err < 0)
630 return err;
631
632 data = val & 0xff;
633 return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1);
634}
635
636static int s5k4aa_get_noise(struct gspca_dev *gspca_dev, __s32 *val)
637{
638 struct sd *sd = (struct sd *) gspca_dev;
639 s32 *sensor_settings = sd->sensor_priv;
640
641 *val = sensor_settings[NOISE_SUPP_IDX];
642 PDEBUG(D_V4L2, "Read noise %d", *val);
643 return 0;
644}
645
646static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val)
647{
648 struct sd *sd = (struct sd *) gspca_dev;
649 s32 *sensor_settings = sd->sensor_priv;
650 u8 data = S5K4AA_PAGE_MAP_2;
651 int err;
652
653 sensor_settings[NOISE_SUPP_IDX] = val;
654
655 PDEBUG(D_V4L2, "Set noise to %d", val);
656 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
657 if (err < 0)
658 return err;
659
660 data = val & 0x01;
661 return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1);
662}
663
664void s5k4aa_disconnect(struct sd *sd)
665{
666 sd->sensor = NULL;
667 kfree(sd->sensor_priv);
668}
669
670static void s5k4aa_dump_registers(struct sd *sd)
671{
672 int address;
673 u8 page, old_page;
674 m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
675 for (page = 0; page < 16; page++) {
676 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
677 info("Dumping the s5k4aa register state for page 0x%x", page);
678 for (address = 0; address <= 0xff; address++) {
679 u8 value = 0;
680 m5602_read_sensor(sd, address, &value, 1);
681 info("register 0x%x contains 0x%x",
682 address, value);
683 }
684 }
685 info("s5k4aa register state dump complete");
686
687 for (page = 0; page < 16; page++) {
688 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
689 info("Probing for which registers that are "
690 "read/write for page 0x%x", page);
691 for (address = 0; address <= 0xff; address++) {
692 u8 old_value, ctrl_value, test_value = 0xff;
693
694 m5602_read_sensor(sd, address, &old_value, 1);
695 m5602_write_sensor(sd, address, &test_value, 1);
696 m5602_read_sensor(sd, address, &ctrl_value, 1);
697
698 if (ctrl_value == test_value)
699 info("register 0x%x is writeable", address);
700 else
701 info("register 0x%x is read only", address);
702
703
704 m5602_write_sensor(sd, address, &old_value, 1);
705 }
706 }
707 info("Read/write register probing complete");
708 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
709}
710
