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10#include <linux/sizes.h>
11#include <linux/delay.h>
12#include <linux/firmware.h>
13#include <linux/gpio.h>
14#include <linux/i2c.h>
15#include <linux/init.h>
16#include <linux/media.h>
17#include <linux/module.h>
18#include <linux/regulator/consumer.h>
19#include <linux/slab.h>
20#include <linux/spi/spi.h>
21#include <linux/videodev2.h>
22#include <media/media-entity.h>
23#include <media/v4l2-ctrls.h>
24#include <media/v4l2-device.h>
25#include <media/v4l2-subdev.h>
26#include <media/v4l2-mediabus.h>
27#include <media/i2c/s5c73m3.h>
28
29#include "s5c73m3.h"
30
31static int s5c73m3_get_af_status(struct s5c73m3 *state, struct v4l2_ctrl *ctrl)
32{
33 u16 reg = REG_AF_STATUS_UNFOCUSED;
34
35 int ret = s5c73m3_read(state, REG_AF_STATUS, ®);
36
37 switch (reg) {
38 case REG_CAF_STATUS_FIND_SEARCH_DIR:
39 case REG_AF_STATUS_FOCUSING:
40 case REG_CAF_STATUS_FOCUSING:
41 ctrl->val = V4L2_AUTO_FOCUS_STATUS_BUSY;
42 break;
43 case REG_CAF_STATUS_FOCUSED:
44 case REG_AF_STATUS_FOCUSED:
45 ctrl->val = V4L2_AUTO_FOCUS_STATUS_REACHED;
46 break;
47 default:
48 v4l2_info(&state->sensor_sd, "Unknown AF status %#x\n", reg);
49
50 case REG_CAF_STATUS_UNFOCUSED:
51 case REG_AF_STATUS_UNFOCUSED:
52 case REG_AF_STATUS_INVALID:
53 ctrl->val = V4L2_AUTO_FOCUS_STATUS_FAILED;
54 break;
55 }
56
57 return ret;
58}
59
60static int s5c73m3_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
61{
62 struct v4l2_subdev *sd = ctrl_to_sensor_sd(ctrl);
63 struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
64 int ret;
65
66 if (state->power == 0)
67 return -EBUSY;
68
69 switch (ctrl->id) {
70 case V4L2_CID_FOCUS_AUTO:
71 ret = s5c73m3_get_af_status(state, state->ctrls.af_status);
72 if (ret)
73 return ret;
74 break;
75 }
76
77 return 0;
78}
79
80static int s5c73m3_set_colorfx(struct s5c73m3 *state, int val)
81{
82 static const unsigned short colorfx[][2] = {
83 { V4L2_COLORFX_NONE, COMM_IMAGE_EFFECT_NONE },
84 { V4L2_COLORFX_BW, COMM_IMAGE_EFFECT_MONO },
85 { V4L2_COLORFX_SEPIA, COMM_IMAGE_EFFECT_SEPIA },
86 { V4L2_COLORFX_NEGATIVE, COMM_IMAGE_EFFECT_NEGATIVE },
87 { V4L2_COLORFX_AQUA, COMM_IMAGE_EFFECT_AQUA },
88 };
89 int i;
90
91 for (i = 0; i < ARRAY_SIZE(colorfx); i++) {
92 if (colorfx[i][0] != val)
93 continue;
94
95 v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
96 "Setting %s color effect\n",
97 v4l2_ctrl_get_menu(state->ctrls.colorfx->id)[i]);
98
99 return s5c73m3_isp_command(state, COMM_IMAGE_EFFECT,
100 colorfx[i][1]);
101 }
102 return -EINVAL;
103}
104
105
106static int s5c73m3_set_exposure(struct s5c73m3 *state, int auto_exp)
107{
108 struct v4l2_subdev *sd = &state->sensor_sd;
109 struct s5c73m3_ctrls *ctrls = &state->ctrls;
110 int ret = 0;
111
112 if (ctrls->exposure_metering->is_new) {
113 u16 metering;
114
115 switch (ctrls->exposure_metering->val) {
116 case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
117 metering = COMM_METERING_CENTER;
118 break;
119 case V4L2_EXPOSURE_METERING_SPOT:
120 metering = COMM_METERING_SPOT;
121 break;
122 default:
123 metering = COMM_METERING_AVERAGE;
124 break;
125 }
126
127 ret = s5c73m3_isp_command(state, COMM_METERING, metering);
128 }
129
130 if (!ret && ctrls->exposure_bias->is_new) {
131 u16 exp_bias = ctrls->exposure_bias->val;
132 ret = s5c73m3_isp_command(state, COMM_EV, exp_bias);
133 }
134
135 v4l2_dbg(1, s5c73m3_dbg, sd,
136 "%s: exposure bias: %#x, metering: %#x (%d)\n", __func__,
137 ctrls->exposure_bias->val, ctrls->exposure_metering->val, ret);
138
139 return ret;
140}
141
142static int s5c73m3_set_white_balance(struct s5c73m3 *state, int val)
143{
144 static const unsigned short wb[][2] = {
145 { V4L2_WHITE_BALANCE_INCANDESCENT, COMM_AWB_MODE_INCANDESCENT},
146 { V4L2_WHITE_BALANCE_FLUORESCENT, COMM_AWB_MODE_FLUORESCENT1},
147 { V4L2_WHITE_BALANCE_FLUORESCENT_H, COMM_AWB_MODE_FLUORESCENT2},
148 { V4L2_WHITE_BALANCE_CLOUDY, COMM_AWB_MODE_CLOUDY},
149 { V4L2_WHITE_BALANCE_DAYLIGHT, COMM_AWB_MODE_DAYLIGHT},
150 { V4L2_WHITE_BALANCE_AUTO, COMM_AWB_MODE_AUTO},
151 };
152 int i;
153
154 for (i = 0; i < ARRAY_SIZE(wb); i++) {
155 if (wb[i][0] != val)
156 continue;
157
158 v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
159 "Setting white balance to: %s\n",
160 v4l2_ctrl_get_menu(state->ctrls.auto_wb->id)[i]);
161
162 return s5c73m3_isp_command(state, COMM_AWB_MODE, wb[i][1]);
163 }
164
165 return -EINVAL;
166}
167
168static int s5c73m3_af_run(struct s5c73m3 *state, bool on)
169{
170 struct s5c73m3_ctrls *c = &state->ctrls;
171
172 if (!on)
173 return s5c73m3_isp_command(state, COMM_AF_CON,
174 COMM_AF_CON_STOP);
175
176 if (c->focus_auto->val)
177 return s5c73m3_isp_command(state, COMM_AF_MODE,
178 COMM_AF_MODE_PREVIEW_CAF_START);
179
180 return s5c73m3_isp_command(state, COMM_AF_CON, COMM_AF_CON_START);
181}
182
183static int s5c73m3_3a_lock(struct s5c73m3 *state, struct v4l2_ctrl *ctrl)
184{
185 bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
186 bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
187 bool af_lock = ctrl->val & V4L2_LOCK_FOCUS;
188 int ret = 0;
189
190 if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_EXPOSURE) {
191 ret = s5c73m3_isp_command(state, COMM_AE_CON,
192 ae_lock ? COMM_AE_STOP : COMM_AE_START);
193 if (ret)
194 return ret;
195 }
196
197 if (((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_WHITE_BALANCE)
198 && state->ctrls.auto_wb->val) {
199 ret = s5c73m3_isp_command(state, COMM_AWB_CON,
200 awb_lock ? COMM_AWB_STOP : COMM_AWB_START);
201 if (ret)
202 return ret;
203 }
204
205 if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_FOCUS)
206 ret = s5c73m3_af_run(state, !af_lock);
207
208 return ret;
209}
210
211static int s5c73m3_set_auto_focus(struct s5c73m3 *state, int caf)
212{
213 struct s5c73m3_ctrls *c = &state->ctrls;
214 int ret = 1;
215
216 if (c->af_distance->is_new) {
217 u16 mode = (c->af_distance->val == V4L2_AUTO_FOCUS_RANGE_MACRO)
218 ? COMM_AF_MODE_MACRO : COMM_AF_MODE_NORMAL;
219 ret = s5c73m3_isp_command(state, COMM_AF_MODE, mode);
220 if (ret != 0)
221 return ret;
222 }
223
224 if (!ret || (c->focus_auto->is_new && c->focus_auto->val) ||
225 c->af_start->is_new)
226 ret = s5c73m3_af_run(state, 1);
227 else if ((c->focus_auto->is_new && !c->focus_auto->val) ||
228 c->af_stop->is_new)
229 ret = s5c73m3_af_run(state, 0);
230 else
231 ret = 0;
232
233 return ret;
234}
235
236static int s5c73m3_set_contrast(struct s5c73m3 *state, int val)
237{
238 u16 reg = (val < 0) ? -val + 2 : val;
239 return s5c73m3_isp_command(state, COMM_CONTRAST, reg);
240}
241
242static int s5c73m3_set_saturation(struct s5c73m3 *state, int val)
243{
244 u16 reg = (val < 0) ? -val + 2 : val;
245 return s5c73m3_isp_command(state, COMM_SATURATION, reg);
246}
247
248static int s5c73m3_set_sharpness(struct s5c73m3 *state, int val)
249{
250 u16 reg = (val < 0) ? -val + 2 : val;
251 return s5c73m3_isp_command(state, COMM_SHARPNESS, reg);
252}
253
254static int s5c73m3_set_iso(struct s5c73m3 *state, int val)
255{
256 u32 iso;
257
258 if (val == V4L2_ISO_SENSITIVITY_MANUAL)
259 iso = state->ctrls.iso->val + 1;
260 else
261 iso = 0;
262
263 return s5c73m3_isp_command(state, COMM_ISO, iso);
264}
265
266static int s5c73m3_set_stabilization(struct s5c73m3 *state, int val)
267{
268 struct v4l2_subdev *sd = &state->sensor_sd;
269
270 v4l2_dbg(1, s5c73m3_dbg, sd, "Image stabilization: %d\n", val);
271
272 return s5c73m3_isp_command(state, COMM_FRAME_RATE, val ?
273 COMM_FRAME_RATE_ANTI_SHAKE : COMM_FRAME_RATE_AUTO_SET);
274}
275
276static int s5c73m3_set_jpeg_quality(struct s5c73m3 *state, int quality)
277{
278 int reg;
279
280 if (quality <= 65)
281 reg = COMM_IMAGE_QUALITY_NORMAL;
282 else if (quality <= 75)
283 reg = COMM_IMAGE_QUALITY_FINE;
284 else
285 reg = COMM_IMAGE_QUALITY_SUPERFINE;
286
287 return s5c73m3_isp_command(state, COMM_IMAGE_QUALITY, reg);
288}
289
290static int s5c73m3_set_scene_program(struct s5c73m3 *state, int val)
291{
292 static const unsigned short scene_lookup[] = {
293 COMM_SCENE_MODE_NONE,
294 COMM_SCENE_MODE_AGAINST_LIGHT,
295 COMM_SCENE_MODE_BEACH,
296 COMM_SCENE_MODE_CANDLE,
297 COMM_SCENE_MODE_DAWN,
298 COMM_SCENE_MODE_FALL,
299 COMM_SCENE_MODE_FIRE,
300 COMM_SCENE_MODE_LANDSCAPE,
301 COMM_SCENE_MODE_NIGHT,
302 COMM_SCENE_MODE_INDOOR,
303 COMM_SCENE_MODE_PORTRAIT,
304 COMM_SCENE_MODE_SPORTS,
305 COMM_SCENE_MODE_SUNSET,
306 COMM_SCENE_MODE_TEXT,
307 };
308
309 v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd, "Setting %s scene mode\n",
310 v4l2_ctrl_get_menu(state->ctrls.scene_mode->id)[val]);
311
312 return s5c73m3_isp_command(state, COMM_SCENE_MODE, scene_lookup[val]);
313}
314
315static int s5c73m3_set_power_line_freq(struct s5c73m3 *state, int val)
316{
317 unsigned int pwr_line_freq = COMM_FLICKER_NONE;
318
319 switch (val) {
320 case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
321 pwr_line_freq = COMM_FLICKER_NONE;
322 break;
323 case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
324 pwr_line_freq = COMM_FLICKER_AUTO_50HZ;
325 break;
326 case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
327 pwr_line_freq = COMM_FLICKER_AUTO_60HZ;
328 break;
329 default:
330 case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
331 pwr_line_freq = COMM_FLICKER_NONE;
332 }
333
334 return s5c73m3_isp_command(state, COMM_FLICKER_MODE, pwr_line_freq);
335}
336
337static int s5c73m3_s_ctrl(struct v4l2_ctrl *ctrl)
338{
339 struct v4l2_subdev *sd = ctrl_to_sensor_sd(ctrl);
340 struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
341 int ret = 0;
342
343 v4l2_dbg(1, s5c73m3_dbg, sd, "set_ctrl: %s, value: %d\n",
344 ctrl->name, ctrl->val);
345
346 mutex_lock(&state->lock);
347
348
349
350
351
352 if (state->power == 0)
353 goto unlock;
354
355 if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) {
356 ret = -EINVAL;
357 goto unlock;
358 }
359
360 switch (ctrl->id) {
361 case V4L2_CID_3A_LOCK:
362 ret = s5c73m3_3a_lock(state, ctrl);
363 break;
364
365 case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
366 ret = s5c73m3_set_white_balance(state, ctrl->val);
367 break;
368
369 case V4L2_CID_CONTRAST:
370 ret = s5c73m3_set_contrast(state, ctrl->val);
371 break;
372
373 case V4L2_CID_COLORFX:
374 ret = s5c73m3_set_colorfx(state, ctrl->val);
375 break;
376
377 case V4L2_CID_EXPOSURE_AUTO:
378 ret = s5c73m3_set_exposure(state, ctrl->val);
379 break;
380
381 case V4L2_CID_FOCUS_AUTO:
382 ret = s5c73m3_set_auto_focus(state, ctrl->val);
383 break;
384
385 case V4L2_CID_IMAGE_STABILIZATION:
386 ret = s5c73m3_set_stabilization(state, ctrl->val);
387 break;
388
389 case V4L2_CID_ISO_SENSITIVITY:
390 ret = s5c73m3_set_iso(state, ctrl->val);
391 break;
392
393 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
394 ret = s5c73m3_set_jpeg_quality(state, ctrl->val);
395 break;
396
397 case V4L2_CID_POWER_LINE_FREQUENCY:
398 ret = s5c73m3_set_power_line_freq(state, ctrl->val);
399 break;
400
401 case V4L2_CID_SATURATION:
402 ret = s5c73m3_set_saturation(state, ctrl->val);
403 break;
404
405 case V4L2_CID_SCENE_MODE:
406 ret = s5c73m3_set_scene_program(state, ctrl->val);
407 break;
408
409 case V4L2_CID_SHARPNESS:
410 ret = s5c73m3_set_sharpness(state, ctrl->val);
411 break;
412
413 case V4L2_CID_WIDE_DYNAMIC_RANGE:
414 ret = s5c73m3_isp_command(state, COMM_WDR, !!ctrl->val);
415 break;
416
417 case V4L2_CID_ZOOM_ABSOLUTE:
418 ret = s5c73m3_isp_command(state, COMM_ZOOM_STEP, ctrl->val);
419 break;
420 }
421unlock:
422 mutex_unlock(&state->lock);
423 return ret;
424}
425
426static const struct v4l2_ctrl_ops s5c73m3_ctrl_ops = {
427 .g_volatile_ctrl = s5c73m3_g_volatile_ctrl,
428 .s_ctrl = s5c73m3_s_ctrl,
429};
430
431
432static const s64 iso_qmenu[] = {
433
434 100, 200, 400, 800,
435};
436
437
438static const s64 ev_bias_qmenu[] = {
439
440 -2000, -1500, -1000, -500, 0, 500, 1000, 1500, 2000
441};
442
443int s5c73m3_init_controls(struct s5c73m3 *state)
444{
445 const struct v4l2_ctrl_ops *ops = &s5c73m3_ctrl_ops;
446 struct s5c73m3_ctrls *ctrls = &state->ctrls;
447 struct v4l2_ctrl_handler *hdl = &ctrls->handler;
448
449 int ret = v4l2_ctrl_handler_init(hdl, 22);
450 if (ret)
451 return ret;
452
453
454 ctrls->auto_wb = v4l2_ctrl_new_std_menu(hdl, ops,
455 V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
456 9, ~0x15e, V4L2_WHITE_BALANCE_AUTO);
457
458
459 ctrls->auto_exposure = v4l2_ctrl_new_std_menu(hdl, ops,
460 V4L2_CID_EXPOSURE_AUTO, 0, ~0x01, V4L2_EXPOSURE_AUTO);
461
462 ctrls->exposure_bias = v4l2_ctrl_new_int_menu(hdl, ops,
463 V4L2_CID_AUTO_EXPOSURE_BIAS,
464 ARRAY_SIZE(ev_bias_qmenu) - 1,
465 ARRAY_SIZE(ev_bias_qmenu)/2 - 1,
466 ev_bias_qmenu);
467
468 ctrls->exposure_metering = v4l2_ctrl_new_std_menu(hdl, ops,
469 V4L2_CID_EXPOSURE_METERING,
470 2, ~0x7, V4L2_EXPOSURE_METERING_AVERAGE);
471
472
473 ctrls->focus_auto = v4l2_ctrl_new_std(hdl, ops,
474 V4L2_CID_FOCUS_AUTO, 0, 1, 1, 0);
475
476 ctrls->af_start = v4l2_ctrl_new_std(hdl, ops,
477 V4L2_CID_AUTO_FOCUS_START, 0, 1, 1, 0);
478
479 ctrls->af_stop = v4l2_ctrl_new_std(hdl, ops,
480 V4L2_CID_AUTO_FOCUS_STOP, 0, 1, 1, 0);
481
482 ctrls->af_status = v4l2_ctrl_new_std(hdl, ops,
483 V4L2_CID_AUTO_FOCUS_STATUS, 0,
484 (V4L2_AUTO_FOCUS_STATUS_BUSY |
485 V4L2_AUTO_FOCUS_STATUS_REACHED |
486 V4L2_AUTO_FOCUS_STATUS_FAILED),
487 0, V4L2_AUTO_FOCUS_STATUS_IDLE);
488
489 ctrls->af_distance = v4l2_ctrl_new_std_menu(hdl, ops,
490 V4L2_CID_AUTO_FOCUS_RANGE,
491 V4L2_AUTO_FOCUS_RANGE_MACRO,
492 ~(1 << V4L2_AUTO_FOCUS_RANGE_NORMAL |
493 1 << V4L2_AUTO_FOCUS_RANGE_MACRO),
494 V4L2_AUTO_FOCUS_RANGE_NORMAL);
495
496 ctrls->auto_iso = v4l2_ctrl_new_std_menu(hdl, ops,
497 V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
498 V4L2_ISO_SENSITIVITY_AUTO);
499
500 ctrls->iso = v4l2_ctrl_new_int_menu(hdl, ops,
501 V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
502 ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
503
504 ctrls->contrast = v4l2_ctrl_new_std(hdl, ops,
505 V4L2_CID_CONTRAST, -2, 2, 1, 0);
506
507 ctrls->saturation = v4l2_ctrl_new_std(hdl, ops,
508 V4L2_CID_SATURATION, -2, 2, 1, 0);
509
510 ctrls->sharpness = v4l2_ctrl_new_std(hdl, ops,
511 V4L2_CID_SHARPNESS, -2, 2, 1, 0);
512
513 ctrls->zoom = v4l2_ctrl_new_std(hdl, ops,
514 V4L2_CID_ZOOM_ABSOLUTE, 0, 30, 1, 0);
515
516 ctrls->colorfx = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_COLORFX,
517 V4L2_COLORFX_AQUA, ~0x40f, V4L2_COLORFX_NONE);
518
519 ctrls->wdr = v4l2_ctrl_new_std(hdl, ops,
520 V4L2_CID_WIDE_DYNAMIC_RANGE, 0, 1, 1, 0);
521
522 ctrls->stabilization = v4l2_ctrl_new_std(hdl, ops,
523 V4L2_CID_IMAGE_STABILIZATION, 0, 1, 1, 0);
524
525 v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_POWER_LINE_FREQUENCY,
526 V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
527 V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
528
529 ctrls->jpeg_quality = v4l2_ctrl_new_std(hdl, ops,
530 V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, 100, 1, 80);
531
532 ctrls->scene_mode = v4l2_ctrl_new_std_menu(hdl, ops,
533 V4L2_CID_SCENE_MODE, V4L2_SCENE_MODE_TEXT, ~0x3fff,
534 V4L2_SCENE_MODE_NONE);
535
536 ctrls->aaa_lock = v4l2_ctrl_new_std(hdl, ops,
537 V4L2_CID_3A_LOCK, 0, 0x7, 0, 0);
538
539 if (hdl->error) {
540 ret = hdl->error;
541 v4l2_ctrl_handler_free(hdl);
542 return ret;
543 }
544
545 v4l2_ctrl_auto_cluster(3, &ctrls->auto_exposure, 0, false);
546 ctrls->auto_iso->flags |= V4L2_CTRL_FLAG_VOLATILE |
547 V4L2_CTRL_FLAG_UPDATE;
548 v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso, 0, false);
549 ctrls->af_status->flags |= V4L2_CTRL_FLAG_VOLATILE;
550 v4l2_ctrl_cluster(5, &ctrls->focus_auto);
551
552 state->sensor_sd.ctrl_handler = hdl;
553
554 return 0;
555}
556
