1 /*
2 * Driver for the mt9m111 sensor
3 *
4 * Copyright (C) 2008 Erik Andrén
5 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
6 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
7 *
8 * Portions of code to USB interface and ALi driver software,
9 * Copyright (c) 2006 Willem Duinker
10 * v4l2 interface modeled after the V4L2 driver
11 * for SN9C10x PC Camera Controllers
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation, version 2.
16 *
17 */
18
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
21 #include "m5602_mt9m111.h"
22
23 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl);
24 static void mt9m111_dump_registers(struct sd *sd);
25
26 static const unsigned char preinit_mt9m111[][4] = {
27 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
28 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
29 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
30 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
31 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
32 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
33 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
34 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
35
36 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
37 {SENSOR, MT9M111_SC_RESET,
38 MT9M111_RESET |
39 MT9M111_RESTART |
40 MT9M111_ANALOG_STANDBY |
41 MT9M111_CHIP_DISABLE,
42 MT9M111_SHOW_BAD_FRAMES |
43 MT9M111_RESTART_BAD_FRAMES |
44 MT9M111_SYNCHRONIZE_CHANGES},
45
46 {BRIDGE, M5602_XB_GPIO_DIR, 0x05, 0x00},
47 {BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00},
48 {BRIDGE, M5602_XB_GPIO_EN_H, 0x3e, 0x00},
49 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00},
50 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00},
51 {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
52 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
53 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
54
55 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
56 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
57 {BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00},
58 {BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00},
59 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
60 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
61
62 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00}
63 };
64
65 static const unsigned char init_mt9m111[][4] = {
66 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
67 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
68 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
69 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
70 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
71 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
72
73 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
74 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
75 {BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00},
76 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00},
77 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
78 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00},
79 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
80 {BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00},
81 {BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00},
82 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00},
83
84 {SENSOR, MT9M111_SC_RESET, 0x00, 0x29},
85 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
86 {SENSOR, MT9M111_SC_RESET, 0x00, 0x08},
87 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x01},
88 {SENSOR, MT9M111_CP_OPERATING_MODE_CTL, 0x00,
89 MT9M111_CP_OPERATING_MODE_CTL},
90 {SENSOR, MT9M111_CP_LENS_CORRECTION_1, 0x04, 0x2a},
91 {SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_A, 0x00,
92 MT9M111_2D_DEFECT_CORRECTION_ENABLE},
93 {SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_B, 0x00,
94 MT9M111_2D_DEFECT_CORRECTION_ENABLE},
95 {SENSOR, MT9M111_CP_LUMA_OFFSET, 0x00, 0x00},
96 {SENSOR, MT9M111_CP_LUMA_CLIP, 0xff, 0x00},
97 {SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_A, 0x14, 0x00},
98 {SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_B, 0x14, 0x00},
99 {SENSOR, 0xcd, 0x00, 0x0e},
100 {SENSOR, 0xd0, 0x00, 0x40},
101
102 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x02},
103 {SENSOR, MT9M111_CC_AUTO_EXPOSURE_PARAMETER_18, 0x00, 0x00},
104 {SENSOR, MT9M111_CC_AWB_PARAMETER_7, 0xef, 0x03},
105
106 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
107 {SENSOR, 0x33, 0x03, 0x49},
108 {SENSOR, 0x34, 0xc0, 0x19},
109 {SENSOR, 0x3f, 0x20, 0x20},
110 {SENSOR, 0x40, 0x20, 0x20},
111 {SENSOR, 0x5a, 0xc0, 0x0a},
112 {SENSOR, 0x70, 0x7b, 0x0a},
113 {SENSOR, 0x71, 0xff, 0x00},
114 {SENSOR, 0x72, 0x19, 0x0e},
115 {SENSOR, 0x73, 0x18, 0x0f},
116 {SENSOR, 0x74, 0x57, 0x32},
117 {SENSOR, 0x75, 0x56, 0x34},
118 {SENSOR, 0x76, 0x73, 0x35},
119 {SENSOR, 0x77, 0x30, 0x12},
120 {SENSOR, 0x78, 0x79, 0x02},
121 {SENSOR, 0x79, 0x75, 0x06},
122 {SENSOR, 0x7a, 0x77, 0x0a},
123 {SENSOR, 0x7b, 0x78, 0x09},
124 {SENSOR, 0x7c, 0x7d, 0x06},
125 {SENSOR, 0x7d, 0x31, 0x10},
126 {SENSOR, 0x7e, 0x00, 0x7e},
127 {SENSOR, 0x80, 0x59, 0x04},
128 {SENSOR, 0x81, 0x59, 0x04},
129 {SENSOR, 0x82, 0x57, 0x0a},
130 {SENSOR, 0x83, 0x58, 0x0b},
131 {SENSOR, 0x84, 0x47, 0x0c},
132 {SENSOR, 0x85, 0x48, 0x0e},
133 {SENSOR, 0x86, 0x5b, 0x02},
134 {SENSOR, 0x87, 0x00, 0x5c},
135 {SENSOR, MT9M111_CONTEXT_CONTROL, 0x00, MT9M111_SEL_CONTEXT_B},
136 {SENSOR, 0x60, 0x00, 0x80},
137 {SENSOR, 0x61, 0x00, 0x00},
138 {SENSOR, 0x62, 0x00, 0x00},
139 {SENSOR, 0x63, 0x00, 0x00},
140 {SENSOR, 0x64, 0x00, 0x00},
141
142 {SENSOR, MT9M111_SC_ROWSTART, 0x00, 0x0d}, /* 13 */
143 {SENSOR, MT9M111_SC_COLSTART, 0x00, 0x12}, /* 18 */
144 {SENSOR, MT9M111_SC_WINDOW_HEIGHT, 0x04, 0x00}, /* 1024 */
145 {SENSOR, MT9M111_SC_WINDOW_WIDTH, 0x05, 0x10}, /* 1296 */
146 {SENSOR, MT9M111_SC_HBLANK_CONTEXT_B, 0x01, 0x60}, /* 352 */
147 {SENSOR, MT9M111_SC_VBLANK_CONTEXT_B, 0x00, 0x11}, /* 17 */
148 {SENSOR, MT9M111_SC_HBLANK_CONTEXT_A, 0x01, 0x60}, /* 352 */
149 {SENSOR, MT9M111_SC_VBLANK_CONTEXT_A, 0x00, 0x11}, /* 17 */
150 {SENSOR, MT9M111_SC_R_MODE_CONTEXT_A, 0x01, 0x0f}, /* 271 */
151 {SENSOR, 0x30, 0x04, 0x00},
152 /* Set number of blank rows chosen to 400 */
153 {SENSOR, MT9M111_SC_SHUTTER_WIDTH, 0x01, 0x90},
154 };
155
156 static const unsigned char start_mt9m111[][4] = {
157 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
158 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
159 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
160 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
161 {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
162 {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
163 {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
164 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
165 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
166 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
167 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
168 };
169
170 static struct v4l2_pix_format mt9m111_modes[] = {
171 {
172 640,
173 480,
174 V4L2_PIX_FMT_SBGGR8,
175 V4L2_FIELD_NONE,
176 .sizeimage = 640 * 480,
177 .bytesperline = 640,
178 .colorspace = V4L2_COLORSPACE_SRGB,
179 .priv = 0
180 }
181 };
182
183 static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
184 .s_ctrl = mt9m111_s_ctrl,
185 };
186
187 static const struct v4l2_ctrl_config mt9m111_greenbal_cfg = {
188 .ops = &mt9m111_ctrl_ops,
189 .id = M5602_V4L2_CID_GREEN_BALANCE,
190 .name = "Green Balance",
191 .type = V4L2_CTRL_TYPE_INTEGER,
192 .min = 0,
193 .max = 0x7ff,
194 .step = 1,
195 .def = MT9M111_GREEN_GAIN_DEFAULT,
196 .flags = V4L2_CTRL_FLAG_SLIDER,
197 };
198
mt9m111_probe(struct sd * sd)199 int mt9m111_probe(struct sd *sd)
200 {
201 u8 data[2] = {0x00, 0x00};
202 int i;
203 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
204
205 if (force_sensor) {
206 if (force_sensor == MT9M111_SENSOR) {
207 pr_info("Forcing a %s sensor\n", mt9m111.name);
208 goto sensor_found;
209 }
210 /* If we want to force another sensor, don't try to probe this
211 * one */
212 return -ENODEV;
213 }
214
215 gspca_dbg(gspca_dev, D_PROBE, "Probing for a mt9m111 sensor\n");
216
217 /* Do the preinit */
218 for (i = 0; i < ARRAY_SIZE(preinit_mt9m111); i++) {
219 if (preinit_mt9m111[i][0] == BRIDGE) {
220 m5602_write_bridge(sd,
221 preinit_mt9m111[i][1],
222 preinit_mt9m111[i][2]);
223 } else {
224 data[0] = preinit_mt9m111[i][2];
225 data[1] = preinit_mt9m111[i][3];
226 m5602_write_sensor(sd,
227 preinit_mt9m111[i][1], data, 2);
228 }
229 }
230
231 if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2))
232 return -ENODEV;
233
234 if ((data[0] == 0x14) && (data[1] == 0x3a)) {
235 pr_info("Detected a mt9m111 sensor\n");
236 goto sensor_found;
237 }
238
239 return -ENODEV;
240
241 sensor_found:
242 sd->gspca_dev.cam.cam_mode = mt9m111_modes;
243 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes);
244
245 return 0;
246 }
247
mt9m111_init(struct sd * sd)248 int mt9m111_init(struct sd *sd)
249 {
250 int i, err = 0;
251
252 /* Init the sensor */
253 for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) {
254 u8 data[2];
255
256 if (init_mt9m111[i][0] == BRIDGE) {
257 err = m5602_write_bridge(sd,
258 init_mt9m111[i][1],
259 init_mt9m111[i][2]);
260 } else {
261 data[0] = init_mt9m111[i][2];
262 data[1] = init_mt9m111[i][3];
263 err = m5602_write_sensor(sd,
264 init_mt9m111[i][1], data, 2);
265 }
266 }
267
268 if (dump_sensor)
269 mt9m111_dump_registers(sd);
270
271 return 0;
272 }
273
mt9m111_init_controls(struct sd * sd)274 int mt9m111_init_controls(struct sd *sd)
275 {
276 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
277
278 sd->gspca_dev.vdev.ctrl_handler = hdl;
279 v4l2_ctrl_handler_init(hdl, 7);
280
281 sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
282 V4L2_CID_AUTO_WHITE_BALANCE,
283 0, 1, 1, 0);
284 sd->green_bal = v4l2_ctrl_new_custom(hdl, &mt9m111_greenbal_cfg, NULL);
285 sd->red_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
286 V4L2_CID_RED_BALANCE, 0, 0x7ff, 1,
287 MT9M111_RED_GAIN_DEFAULT);
288 sd->blue_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
289 V4L2_CID_BLUE_BALANCE, 0, 0x7ff, 1,
290 MT9M111_BLUE_GAIN_DEFAULT);
291
292 v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_GAIN, 0,
293 (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, 1,
294 MT9M111_DEFAULT_GAIN);
295
296 sd->hflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_HFLIP,
297 0, 1, 1, 0);
298 sd->vflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_VFLIP,
299 0, 1, 1, 0);
300
301 if (hdl->error) {
302 pr_err("Could not initialize controls\n");
303 return hdl->error;
304 }
305
306 v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false);
307 v4l2_ctrl_cluster(2, &sd->hflip);
308
309 return 0;
310 }
311
mt9m111_start(struct sd * sd)312 int mt9m111_start(struct sd *sd)
313 {
314 int i, err = 0;
315 u8 data[2];
316 struct cam *cam = &sd->gspca_dev.cam;
317 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
318
319 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1;
320 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
321
322 for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) {
323 if (start_mt9m111[i][0] == BRIDGE) {
324 err = m5602_write_bridge(sd,
325 start_mt9m111[i][1],
326 start_mt9m111[i][2]);
327 } else {
328 data[0] = start_mt9m111[i][2];
329 data[1] = start_mt9m111[i][3];
330 err = m5602_write_sensor(sd,
331 start_mt9m111[i][1], data, 2);
332 }
333 }
334 if (err < 0)
335 return err;
336
337 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
338 if (err < 0)
339 return err;
340
341 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
342 if (err < 0)
343 return err;
344
345 for (i = 0; i < 2 && !err; i++)
346 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
347 if (err < 0)
348 return err;
349
350 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
351 if (err < 0)
352 return err;
353
354 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2);
355 if (err < 0)
356 return err;
357
358 for (i = 0; i < 2 && !err; i++)
359 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);
360 if (err < 0)
361 return err;
362
363 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
364 (width >> 8) & 0xff);
365 if (err < 0)
366 return err;
367
368 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff);
369 if (err < 0)
370 return err;
371
372 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
373 if (err < 0)
374 return err;
375
376 switch (width) {
377 case 640:
378 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n");
379 break;
380
381 case 320:
382 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for QVGA mode\n");
383 break;
384 }
385 return err;
386 }
387
mt9m111_disconnect(struct sd * sd)388 void mt9m111_disconnect(struct sd *sd)
389 {
390 sd->sensor = NULL;
391 }
392
mt9m111_set_hvflip(struct gspca_dev * gspca_dev)393 static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev)
394 {
395 int err;
396 u8 data[2] = {0x00, 0x00};
397 struct sd *sd = (struct sd *) gspca_dev;
398 int hflip;
399 int vflip;
400
401 gspca_dbg(gspca_dev, D_CONF, "Set hvflip to %d %d\n",
402 sd->hflip->val, sd->vflip->val);
403
404 /* The mt9m111 is flipped by default */
405 hflip = !sd->hflip->val;
406 vflip = !sd->vflip->val;
407
408 /* Set the correct page map */
409 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
410 if (err < 0)
411 return err;
412
413 data[0] = MT9M111_RMB_OVER_SIZED;
414 if (gspca_dev->pixfmt.width == 640) {
415 data[1] = MT9M111_RMB_ROW_SKIP_2X |
416 MT9M111_RMB_COLUMN_SKIP_2X |
417 (hflip << 1) | vflip;
418 } else {
419 data[1] = MT9M111_RMB_ROW_SKIP_4X |
420 MT9M111_RMB_COLUMN_SKIP_4X |
421 (hflip << 1) | vflip;
422 }
423 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
424 data, 2);
425 return err;
426 }
427
mt9m111_set_auto_white_balance(struct gspca_dev * gspca_dev,__s32 val)428 static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
429 __s32 val)
430 {
431 struct sd *sd = (struct sd *) gspca_dev;
432 int err;
433 u8 data[2];
434
435 err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
436 if (err < 0)
437 return err;
438
439 data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1));
440
441 err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
442
443 gspca_dbg(gspca_dev, D_CONF, "Set auto white balance %d\n", val);
444 return err;
445 }
446
mt9m111_set_gain(struct gspca_dev * gspca_dev,__s32 val)447 static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
448 {
449 int err, tmp;
450 u8 data[2] = {0x00, 0x00};
451 struct sd *sd = (struct sd *) gspca_dev;
452
453 /* Set the correct page map */
454 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
455 if (err < 0)
456 return err;
457
458 if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2)
459 return -EINVAL;
460
461 if ((val >= INITIAL_MAX_GAIN * 2 * 2) &&
462 (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2))
463 tmp = (1 << 10) | (val << 9) |
464 (val << 8) | (val / 8);
465 else if ((val >= INITIAL_MAX_GAIN * 2) &&
466 (val < INITIAL_MAX_GAIN * 2 * 2))
467 tmp = (1 << 9) | (1 << 8) | (val / 4);
468 else if ((val >= INITIAL_MAX_GAIN) &&
469 (val < INITIAL_MAX_GAIN * 2))
470 tmp = (1 << 8) | (val / 2);
471 else
472 tmp = val;
473
474 data[1] = (tmp & 0xff);
475 data[0] = (tmp & 0xff00) >> 8;
476 gspca_dbg(gspca_dev, D_CONF, "tmp=%d, data[1]=%d, data[0]=%d\n", tmp,
477 data[1], data[0]);
478
479 err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN,
480 data, 2);
481
482 return err;
483 }
484
mt9m111_set_green_balance(struct gspca_dev * gspca_dev,__s32 val)485 static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
486 {
487 int err;
488 u8 data[2];
489 struct sd *sd = (struct sd *) gspca_dev;
490
491 data[1] = (val & 0xff);
492 data[0] = (val & 0xff00) >> 8;
493
494 gspca_dbg(gspca_dev, D_CONF, "Set green balance %d\n", val);
495 err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN,
496 data, 2);
497 if (err < 0)
498 return err;
499
500 return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN,
501 data, 2);
502 }
503
mt9m111_set_blue_balance(struct gspca_dev * gspca_dev,__s32 val)504 static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
505 {
506 u8 data[2];
507 struct sd *sd = (struct sd *) gspca_dev;
508
509 data[1] = (val & 0xff);
510 data[0] = (val & 0xff00) >> 8;
511
512 gspca_dbg(gspca_dev, D_CONF, "Set blue balance %d\n", val);
513
514 return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN,
515 data, 2);
516 }
517
mt9m111_set_red_balance(struct gspca_dev * gspca_dev,__s32 val)518 static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
519 {
520 u8 data[2];
521 struct sd *sd = (struct sd *) gspca_dev;
522
523 data[1] = (val & 0xff);
524 data[0] = (val & 0xff00) >> 8;
525
526 gspca_dbg(gspca_dev, D_CONF, "Set red balance %d\n", val);
527
528 return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN,
529 data, 2);
530 }
531
mt9m111_s_ctrl(struct v4l2_ctrl * ctrl)532 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
533 {
534 struct gspca_dev *gspca_dev =
535 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
536 struct sd *sd = (struct sd *) gspca_dev;
537 int err;
538
539 if (!gspca_dev->streaming)
540 return 0;
541
542 switch (ctrl->id) {
543 case V4L2_CID_AUTO_WHITE_BALANCE:
544 err = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val);
545 if (err || ctrl->val)
546 return err;
547 err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val);
548 if (err)
549 return err;
550 err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val);
551 if (err)
552 return err;
553 err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val);
554 break;
555 case V4L2_CID_GAIN:
556 err = mt9m111_set_gain(gspca_dev, ctrl->val);
557 break;
558 case V4L2_CID_HFLIP:
559 err = mt9m111_set_hvflip(gspca_dev);
560 break;
561 default:
562 return -EINVAL;
563 }
564
565 return err;
566 }
567
mt9m111_dump_registers(struct sd * sd)568 static void mt9m111_dump_registers(struct sd *sd)
569 {
570 u8 address, value[2] = {0x00, 0x00};
571
572 pr_info("Dumping the mt9m111 register state\n");
573
574 pr_info("Dumping the mt9m111 sensor core registers\n");
575 value[1] = MT9M111_SENSOR_CORE;
576 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
577 for (address = 0; address < 0xff; address++) {
578 m5602_read_sensor(sd, address, value, 2);
579 pr_info("register 0x%x contains 0x%x%x\n",
580 address, value[0], value[1]);
581 }
582
583 pr_info("Dumping the mt9m111 color pipeline registers\n");
584 value[1] = MT9M111_COLORPIPE;
585 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
586 for (address = 0; address < 0xff; address++) {
587 m5602_read_sensor(sd, address, value, 2);
588 pr_info("register 0x%x contains 0x%x%x\n",
589 address, value[0], value[1]);
590 }
591
592 pr_info("Dumping the mt9m111 camera control registers\n");
593 value[1] = MT9M111_CAMERA_CONTROL;
594 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
595 for (address = 0; address < 0xff; address++) {
596 m5602_read_sensor(sd, address, value, 2);
597 pr_info("register 0x%x contains 0x%x%x\n",
598 address, value[0], value[1]);
599 }
600
601 pr_info("mt9m111 register state dump complete\n");
602 }
603