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4c98834a EA |
1 | /* |
2 | * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher | |
3 | * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland | |
4 | * Copyright (c) 2002, 2003 Tuukka Toivonen | |
5 | * Copyright (c) 2008 Erik Andrén | |
6 | * Copyright (c) 2008 Chia-I Wu | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | * P/N 861037: Sensor HDCS1000 ASIC STV0600 | |
23 | * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600 | |
24 | * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express | |
25 | * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam | |
26 | * P/N 861075-0040: Sensor HDCS1000 ASIC | |
27 | * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB | |
28 | * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web | |
29 | */ | |
30 | ||
31 | #include "stv06xx_hdcs.h" | |
32 | ||
766231ab EA |
33 | static const struct ctrl hdcs1x00_ctrl[] = { |
34 | { | |
35 | { | |
36 | .id = V4L2_CID_EXPOSURE, | |
37 | .type = V4L2_CTRL_TYPE_INTEGER, | |
38 | .name = "exposure", | |
39 | .minimum = 0x00, | |
40 | .maximum = 0xffff, | |
41 | .step = 0x1, | |
42 | .default_value = HDCS_DEFAULT_EXPOSURE, | |
43 | .flags = V4L2_CTRL_FLAG_SLIDER | |
44 | }, | |
45 | .set = hdcs_set_exposure, | |
46 | .get = hdcs_get_exposure | |
47 | }, { | |
48 | { | |
49 | .id = V4L2_CID_GAIN, | |
50 | .type = V4L2_CTRL_TYPE_INTEGER, | |
51 | .name = "gain", | |
52 | .minimum = 0x00, | |
53 | .maximum = 0xff, | |
54 | .step = 0x1, | |
55 | .default_value = HDCS_DEFAULT_GAIN, | |
56 | .flags = V4L2_CTRL_FLAG_SLIDER | |
57 | }, | |
58 | .set = hdcs_set_gain, | |
59 | .get = hdcs_get_gain | |
60 | } | |
61 | }; | |
62 | ||
63 | static struct v4l2_pix_format hdcs1x00_mode[] = { | |
64 | { | |
65 | HDCS_1X00_DEF_WIDTH, | |
66 | HDCS_1X00_DEF_HEIGHT, | |
67 | V4L2_PIX_FMT_SBGGR8, | |
68 | V4L2_FIELD_NONE, | |
69 | .sizeimage = | |
70 | HDCS_1X00_DEF_WIDTH * HDCS_1X00_DEF_HEIGHT, | |
71 | .bytesperline = HDCS_1X00_DEF_WIDTH, | |
72 | .colorspace = V4L2_COLORSPACE_SRGB, | |
73 | .priv = 1 | |
74 | } | |
75 | }; | |
76 | ||
77 | static const struct ctrl hdcs1020_ctrl[] = {}; | |
78 | ||
79 | static struct v4l2_pix_format hdcs1020_mode[] = { | |
80 | { | |
81 | HDCS_1020_DEF_WIDTH, | |
82 | HDCS_1020_DEF_HEIGHT, | |
83 | V4L2_PIX_FMT_SBGGR8, | |
84 | V4L2_FIELD_NONE, | |
85 | .sizeimage = | |
86 | HDCS_1020_DEF_WIDTH * HDCS_1020_DEF_HEIGHT, | |
87 | .bytesperline = HDCS_1020_DEF_WIDTH, | |
88 | .colorspace = V4L2_COLORSPACE_SRGB, | |
89 | .priv = 1 | |
90 | } | |
91 | }; | |
92 | ||
4c98834a EA |
93 | enum hdcs_power_state { |
94 | HDCS_STATE_SLEEP, | |
95 | HDCS_STATE_IDLE, | |
96 | HDCS_STATE_RUN | |
97 | }; | |
98 | ||
99 | /* no lock? */ | |
100 | struct hdcs { | |
101 | enum hdcs_power_state state; | |
102 | int w, h; | |
103 | ||
104 | /* visible area of the sensor array */ | |
105 | struct { | |
106 | int left, top; | |
107 | int width, height; | |
108 | int border; | |
109 | } array; | |
110 | ||
111 | struct { | |
112 | /* Column timing overhead */ | |
113 | u8 cto; | |
114 | /* Column processing overhead */ | |
115 | u8 cpo; | |
116 | /* Row sample period constant */ | |
117 | u16 rs; | |
118 | /* Exposure reset duration */ | |
119 | u16 er; | |
120 | } exp; | |
121 | ||
122 | int psmp; | |
123 | }; | |
124 | ||
125 | static int hdcs_reg_write_seq(struct sd *sd, u8 reg, u8 *vals, u8 len) | |
126 | { | |
127 | u8 regs[I2C_MAX_BYTES * 2]; | |
128 | int i; | |
129 | ||
130 | if (unlikely((len <= 0) || (len >= I2C_MAX_BYTES) || | |
131 | (reg + len > 0xff))) | |
132 | return -EINVAL; | |
133 | ||
134 | for (i = 0; i < len; i++, reg++) { | |
135 | regs[2*i] = reg; | |
136 | regs[2*i+1] = vals[i]; | |
137 | } | |
138 | ||
139 | return stv06xx_write_sensor_bytes(sd, regs, len); | |
140 | } | |
141 | ||
142 | static int hdcs_set_state(struct sd *sd, enum hdcs_power_state state) | |
143 | { | |
144 | struct hdcs *hdcs = sd->sensor_priv; | |
145 | u8 val; | |
146 | int ret; | |
147 | ||
148 | if (hdcs->state == state) | |
149 | return 0; | |
150 | ||
151 | /* we need to go idle before running or sleeping */ | |
152 | if (hdcs->state != HDCS_STATE_IDLE) { | |
153 | ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 0); | |
154 | if (ret) | |
155 | return ret; | |
156 | } | |
157 | ||
158 | hdcs->state = HDCS_STATE_IDLE; | |
159 | ||
160 | if (state == HDCS_STATE_IDLE) | |
161 | return 0; | |
162 | ||
163 | switch (state) { | |
164 | case HDCS_STATE_SLEEP: | |
165 | val = HDCS_SLEEP_MODE; | |
166 | break; | |
167 | ||
168 | case HDCS_STATE_RUN: | |
169 | val = HDCS_RUN_ENABLE; | |
170 | break; | |
171 | ||
172 | default: | |
173 | return -EINVAL; | |
174 | } | |
175 | ||
176 | ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), val); | |
177 | if (ret < 0) | |
178 | hdcs->state = state; | |
179 | ||
180 | return ret; | |
181 | } | |
182 | ||
183 | static int hdcs_reset(struct sd *sd) | |
184 | { | |
185 | struct hdcs *hdcs = sd->sensor_priv; | |
186 | int err; | |
187 | ||
188 | err = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 1); | |
189 | if (err < 0) | |
190 | return err; | |
191 | ||
192 | err = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 0); | |
193 | if (err < 0) | |
194 | hdcs->state = HDCS_STATE_IDLE; | |
195 | ||
196 | return err; | |
197 | } | |
198 | ||
199 | static int hdcs_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) | |
200 | { | |
201 | struct sd *sd = (struct sd *) gspca_dev; | |
202 | struct hdcs *hdcs = sd->sensor_priv; | |
203 | ||
204 | /* Column time period */ | |
205 | int ct; | |
206 | /* Column processing period */ | |
207 | int cp; | |
208 | /* Row processing period */ | |
209 | int rp; | |
210 | int cycles; | |
211 | int err; | |
212 | int rowexp; | |
213 | u16 data[2]; | |
214 | ||
215 | err = stv06xx_read_sensor(sd, HDCS_ROWEXPL, &data[0]); | |
216 | if (err < 0) | |
217 | return err; | |
218 | ||
219 | err = stv06xx_read_sensor(sd, HDCS_ROWEXPH, &data[1]); | |
220 | if (err < 0) | |
221 | return err; | |
222 | ||
223 | rowexp = (data[1] << 8) | data[0]; | |
224 | ||
225 | ct = hdcs->exp.cto + hdcs->psmp + (HDCS_ADC_START_SIG_DUR + 2); | |
226 | cp = hdcs->exp.cto + (hdcs->w * ct / 2); | |
227 | rp = hdcs->exp.rs + cp; | |
228 | ||
229 | cycles = rp * rowexp; | |
230 | *val = cycles / HDCS_CLK_FREQ_MHZ; | |
231 | PDEBUG(D_V4L2, "Read exposure %d", *val); | |
232 | return 0; | |
233 | } | |
234 | ||
235 | static int hdcs_set_exposure(struct gspca_dev *gspca_dev, __s32 val) | |
236 | { | |
237 | struct sd *sd = (struct sd *) gspca_dev; | |
238 | struct hdcs *hdcs = sd->sensor_priv; | |
239 | int rowexp, srowexp; | |
240 | int max_srowexp; | |
241 | /* Column time period */ | |
242 | int ct; | |
243 | /* Column processing period */ | |
244 | int cp; | |
245 | /* Row processing period */ | |
246 | int rp; | |
247 | /* Minimum number of column timing periods | |
248 | within the column processing period */ | |
249 | int mnct; | |
250 | int cycles, err; | |
251 | u8 exp[4]; | |
252 | ||
253 | cycles = val * HDCS_CLK_FREQ_MHZ; | |
254 | ||
255 | ct = hdcs->exp.cto + hdcs->psmp + (HDCS_ADC_START_SIG_DUR + 2); | |
256 | cp = hdcs->exp.cto + (hdcs->w * ct / 2); | |
257 | ||
258 | /* the cycles one row takes */ | |
259 | rp = hdcs->exp.rs + cp; | |
260 | ||
261 | rowexp = cycles / rp; | |
262 | ||
263 | /* the remaining cycles */ | |
264 | cycles -= rowexp * rp; | |
265 | ||
266 | /* calculate sub-row exposure */ | |
267 | if (IS_1020(sd)) { | |
268 | /* see HDCS-1020 datasheet 3.5.6.4, p. 63 */ | |
269 | srowexp = hdcs->w - (cycles + hdcs->exp.er + 13) / ct; | |
270 | ||
271 | mnct = (hdcs->exp.er + 12 + ct - 1) / ct; | |
272 | max_srowexp = hdcs->w - mnct; | |
273 | } else { | |
274 | /* see HDCS-1000 datasheet 3.4.5.5, p. 61 */ | |
275 | srowexp = cp - hdcs->exp.er - 6 - cycles; | |
276 | ||
277 | mnct = (hdcs->exp.er + 5 + ct - 1) / ct; | |
278 | max_srowexp = cp - mnct * ct - 1; | |
279 | } | |
280 | ||
281 | if (srowexp < 0) | |
282 | srowexp = 0; | |
283 | else if (srowexp > max_srowexp) | |
284 | srowexp = max_srowexp; | |
285 | ||
286 | if (IS_1020(sd)) { | |
287 | exp[0] = rowexp & 0xff; | |
288 | exp[1] = rowexp >> 8; | |
289 | exp[2] = (srowexp >> 2) & 0xff; | |
290 | /* this clears exposure error flag */ | |
291 | exp[3] = 0x1; | |
292 | err = hdcs_reg_write_seq(sd, HDCS_ROWEXPL, exp, 4); | |
293 | } else { | |
294 | exp[0] = rowexp & 0xff; | |
295 | exp[1] = rowexp >> 8; | |
296 | exp[2] = srowexp & 0xff; | |
297 | exp[3] = srowexp >> 8; | |
298 | err = hdcs_reg_write_seq(sd, HDCS_ROWEXPL, exp, 4); | |
299 | if (err < 0) | |
300 | return err; | |
301 | ||
302 | /* clear exposure error flag */ | |
303 | err = stv06xx_write_sensor(sd, | |
304 | HDCS_STATUS, BIT(4)); | |
305 | } | |
306 | PDEBUG(D_V4L2, "Writing exposure %d, rowexp %d, srowexp %d", | |
307 | val, rowexp, srowexp); | |
308 | return err; | |
309 | } | |
310 | ||
311 | static int hdcs_set_gains(struct sd *sd, u8 r, u8 g, u8 b) | |
312 | { | |
313 | u8 gains[4]; | |
314 | ||
315 | /* the voltage gain Av = (1 + 19 * val / 127) * (1 + bit7) */ | |
316 | if (r > 127) | |
317 | r = 0x80 | (r / 2); | |
318 | if (g > 127) | |
319 | g = 0x80 | (g / 2); | |
320 | if (b > 127) | |
321 | b = 0x80 | (b / 2); | |
322 | ||
323 | gains[0] = g; | |
324 | gains[1] = r; | |
325 | gains[2] = b; | |
326 | gains[3] = g; | |
327 | ||
328 | return hdcs_reg_write_seq(sd, HDCS_ERECPGA, gains, 4); | |
329 | } | |
330 | ||
331 | static int hdcs_get_gain(struct gspca_dev *gspca_dev, __s32 *val) | |
332 | { | |
333 | struct sd *sd = (struct sd *) gspca_dev; | |
334 | int err; | |
335 | u16 data; | |
336 | ||
337 | err = stv06xx_read_sensor(sd, HDCS_ERECPGA, &data); | |
338 | ||
339 | /* Bit 7 doubles the gain */ | |
340 | if (data & 0x80) | |
341 | *val = (data & 0x7f) * 2; | |
342 | else | |
343 | *val = data; | |
344 | ||
345 | PDEBUG(D_V4L2, "Read gain %d", *val); | |
346 | return err; | |
347 | } | |
348 | ||
349 | static int hdcs_set_gain(struct gspca_dev *gspca_dev, __s32 val) | |
350 | { | |
351 | PDEBUG(D_V4L2, "Writing gain %d", val); | |
352 | return hdcs_set_gains((struct sd *) gspca_dev, | |
353 | val & 0xff, val & 0xff, val & 0xff); | |
354 | } | |
355 | ||
356 | static int hdcs_set_size(struct sd *sd, | |
357 | unsigned int width, unsigned int height) | |
358 | { | |
359 | struct hdcs *hdcs = sd->sensor_priv; | |
360 | u8 win[4]; | |
361 | unsigned int x, y; | |
362 | int err; | |
363 | ||
364 | /* must be multiple of 4 */ | |
365 | width = (width + 3) & ~0x3; | |
366 | height = (height + 3) & ~0x3; | |
367 | ||
368 | if (width > hdcs->array.width) | |
369 | width = hdcs->array.width; | |
370 | ||
371 | if (IS_1020(sd)) { | |
372 | /* the borders are also invalid */ | |
373 | if (height + 2 * hdcs->array.border + HDCS_1020_BOTTOM_Y_SKIP | |
374 | > hdcs->array.height) | |
375 | height = hdcs->array.height - 2 * hdcs->array.border - | |
376 | HDCS_1020_BOTTOM_Y_SKIP; | |
377 | ||
378 | y = (hdcs->array.height - HDCS_1020_BOTTOM_Y_SKIP - height) / 2 | |
379 | + hdcs->array.top; | |
1970f14f EA |
380 | } else { |
381 | if (height > hdcs->array.height) | |
382 | height = hdcs->array.height; | |
383 | ||
4c98834a EA |
384 | y = hdcs->array.top + (hdcs->array.height - height) / 2; |
385 | } | |
386 | ||
387 | x = hdcs->array.left + (hdcs->array.width - width) / 2; | |
388 | ||
389 | win[0] = y / 4; | |
390 | win[1] = x / 4; | |
391 | win[2] = (y + height) / 4 - 1; | |
392 | win[3] = (x + width) / 4 - 1; | |
393 | ||
394 | err = hdcs_reg_write_seq(sd, HDCS_FWROW, win, 4); | |
395 | if (err < 0) | |
396 | return err; | |
397 | ||
398 | /* Update the current width and height */ | |
399 | hdcs->w = width; | |
400 | hdcs->h = height; | |
401 | return err; | |
402 | } | |
403 | ||
404 | static int hdcs_probe_1x00(struct sd *sd) | |
405 | { | |
406 | struct hdcs *hdcs; | |
407 | u16 sensor; | |
408 | int ret; | |
409 | ||
410 | ret = stv06xx_read_sensor(sd, HDCS_IDENT, &sensor); | |
411 | if (ret < 0 || sensor != 0x08) | |
412 | return -ENODEV; | |
413 | ||
414 | info("HDCS-1000/1100 sensor detected"); | |
415 | ||
766231ab EA |
416 | sd->gspca_dev.cam.cam_mode = hdcs1x00_mode; |
417 | sd->gspca_dev.cam.nmodes = ARRAY_SIZE(hdcs1x00_mode); | |
418 | sd->desc.ctrls = hdcs1x00_ctrl; | |
419 | sd->desc.nctrls = ARRAY_SIZE(hdcs1x00_ctrl); | |
4c98834a EA |
420 | |
421 | hdcs = kmalloc(sizeof(struct hdcs), GFP_KERNEL); | |
422 | if (!hdcs) | |
423 | return -ENOMEM; | |
424 | ||
425 | hdcs->array.left = 8; | |
426 | hdcs->array.top = 8; | |
427 | hdcs->array.width = HDCS_1X00_DEF_WIDTH; | |
428 | hdcs->array.height = HDCS_1X00_DEF_HEIGHT; | |
429 | hdcs->array.border = 4; | |
430 | ||
431 | hdcs->exp.cto = 4; | |
432 | hdcs->exp.cpo = 2; | |
433 | hdcs->exp.rs = 186; | |
434 | hdcs->exp.er = 100; | |
435 | ||
436 | /* | |
8668d504 | 437 | * Frame rate on HDCS-1000 with STV600 depends on PSMP: |
4c98834a EA |
438 | * 4 = doesn't work at all |
439 | * 5 = 7.8 fps, | |
440 | * 6 = 6.9 fps, | |
441 | * 8 = 6.3 fps, | |
442 | * 10 = 5.5 fps, | |
443 | * 15 = 4.4 fps, | |
444 | * 31 = 2.8 fps | |
445 | * | |
8668d504 | 446 | * Frame rate on HDCS-1000 with STV602 depends on PSMP: |
4c98834a EA |
447 | * 15 = doesn't work at all |
448 | * 18 = doesn't work at all | |
449 | * 19 = 7.3 fps | |
450 | * 20 = 7.4 fps | |
451 | * 21 = 7.4 fps | |
452 | * 22 = 7.4 fps | |
453 | * 24 = 6.3 fps | |
454 | * 30 = 5.4 fps | |
455 | */ | |
8668d504 | 456 | hdcs->psmp = (sd->bridge == BRIDGE_STV602) ? 20 : 5; |
4c98834a EA |
457 | |
458 | sd->sensor_priv = hdcs; | |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
463 | static int hdcs_probe_1020(struct sd *sd) | |
464 | { | |
465 | struct hdcs *hdcs; | |
466 | u16 sensor; | |
467 | int ret; | |
468 | ||
469 | ret = stv06xx_read_sensor(sd, HDCS_IDENT, &sensor); | |
470 | if (ret < 0 || sensor != 0x10) | |
471 | return -ENODEV; | |
472 | ||
473 | info("HDCS-1020 sensor detected"); | |
474 | ||
766231ab EA |
475 | sd->gspca_dev.cam.cam_mode = hdcs1020_mode; |
476 | sd->gspca_dev.cam.nmodes = ARRAY_SIZE(hdcs1020_mode); | |
477 | sd->desc.ctrls = hdcs1020_ctrl; | |
478 | sd->desc.nctrls = ARRAY_SIZE(hdcs1020_ctrl); | |
4c98834a EA |
479 | |
480 | hdcs = kmalloc(sizeof(struct hdcs), GFP_KERNEL); | |
481 | if (!hdcs) | |
482 | return -ENOMEM; | |
483 | ||
484 | /* | |
485 | * From Andrey's test image: looks like HDCS-1020 upper-left | |
486 | * visible pixel is at 24,8 (y maybe even smaller?) and lower-right | |
487 | * visible pixel at 375,299 (x maybe even larger?) | |
488 | */ | |
489 | hdcs->array.left = 24; | |
490 | hdcs->array.top = 4; | |
491 | hdcs->array.width = HDCS_1020_DEF_WIDTH; | |
492 | hdcs->array.height = 304; | |
493 | hdcs->array.border = 4; | |
494 | ||
495 | hdcs->psmp = 6; | |
496 | ||
497 | hdcs->exp.cto = 3; | |
498 | hdcs->exp.cpo = 3; | |
499 | hdcs->exp.rs = 155; | |
500 | hdcs->exp.er = 96; | |
501 | ||
502 | sd->sensor_priv = hdcs; | |
503 | ||
504 | return 0; | |
505 | } | |
506 | ||
507 | static int hdcs_start(struct sd *sd) | |
508 | { | |
509 | PDEBUG(D_STREAM, "Starting stream"); | |
510 | ||
511 | return hdcs_set_state(sd, HDCS_STATE_RUN); | |
512 | } | |
513 | ||
514 | static int hdcs_stop(struct sd *sd) | |
515 | { | |
516 | PDEBUG(D_STREAM, "Halting stream"); | |
517 | ||
518 | return hdcs_set_state(sd, HDCS_STATE_SLEEP); | |
519 | } | |
520 | ||
521 | static void hdcs_disconnect(struct sd *sd) | |
522 | { | |
523 | PDEBUG(D_PROBE, "Disconnecting the sensor"); | |
524 | kfree(sd->sensor_priv); | |
525 | } | |
526 | ||
527 | static int hdcs_init(struct sd *sd) | |
528 | { | |
529 | struct hdcs *hdcs = sd->sensor_priv; | |
530 | int i, err = 0; | |
531 | ||
532 | /* Set the STV0602AA in STV0600 emulation mode */ | |
8668d504 | 533 | if (sd->bridge == BRIDGE_STV602) |
4c98834a EA |
534 | stv06xx_write_bridge(sd, STV_STV0600_EMULATION, 1); |
535 | ||
536 | /* Execute the bridge init */ | |
537 | for (i = 0; i < ARRAY_SIZE(stv_bridge_init) && !err; i++) { | |
538 | err = stv06xx_write_bridge(sd, stv_bridge_init[i][0], | |
539 | stv_bridge_init[i][1]); | |
540 | } | |
541 | if (err < 0) | |
542 | return err; | |
543 | ||
544 | /* sensor soft reset */ | |
545 | hdcs_reset(sd); | |
546 | ||
547 | /* Execute the sensor init */ | |
548 | for (i = 0; i < ARRAY_SIZE(stv_sensor_init) && !err; i++) { | |
549 | err = stv06xx_write_sensor(sd, stv_sensor_init[i][0], | |
550 | stv_sensor_init[i][1]); | |
551 | } | |
552 | if (err < 0) | |
553 | return err; | |
554 | ||
555 | /* Enable continous frame capture, bit 2: stop when frame complete */ | |
556 | err = stv06xx_write_sensor(sd, HDCS_REG_CONFIG(sd), BIT(3)); | |
557 | if (err < 0) | |
558 | return err; | |
559 | ||
560 | /* Set PGA sample duration | |
8668d504 | 561 | (was 0x7E for the STV602, but caused slow framerate with HDCS-1020) */ |
4c98834a EA |
562 | if (IS_1020(sd)) |
563 | err = stv06xx_write_sensor(sd, HDCS_TCTRL, | |
564 | (HDCS_ADC_START_SIG_DUR << 6) | hdcs->psmp); | |
565 | else | |
566 | err = stv06xx_write_sensor(sd, HDCS_TCTRL, | |
567 | (HDCS_ADC_START_SIG_DUR << 5) | hdcs->psmp); | |
568 | if (err < 0) | |
569 | return err; | |
570 | ||
571 | err = hdcs_set_gains(sd, HDCS_DEFAULT_GAIN, HDCS_DEFAULT_GAIN, | |
572 | HDCS_DEFAULT_GAIN); | |
573 | if (err < 0) | |
574 | return err; | |
575 | ||
576 | err = hdcs_set_exposure(&sd->gspca_dev, HDCS_DEFAULT_EXPOSURE); | |
577 | if (err < 0) | |
578 | return err; | |
579 | ||
580 | err = hdcs_set_size(sd, hdcs->array.width, hdcs->array.height); | |
581 | return err; | |
582 | } | |
583 | ||
584 | static int hdcs_dump(struct sd *sd) | |
585 | { | |
586 | u16 reg, val; | |
587 | ||
588 | info("Dumping sensor registers:"); | |
589 | ||
590 | for (reg = HDCS_IDENT; reg <= HDCS_ROWEXPH; reg++) { | |
591 | stv06xx_read_sensor(sd, reg, &val); | |
592 | info("reg 0x%02x = 0x%02x", reg, val); | |
593 | } | |
594 | return 0; | |
595 | } |