1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Driver for the mt9m111 sensor
4 *
5 * Copyright (C) 2008 Erik Andrén
6 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
7 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
8 *
9 * Portions of code to USB interface and ALi driver software,
10 * Copyright (c) 2006 Willem Duinker
11 * v4l2 interface modeled after the V4L2 driver
12 * for SN9C10x PC Camera Controllers
13 */
14
15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16
17 #include "m5602_mt9m111.h"
18
19 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl);
20 static void mt9m111_dump_registers(struct sd *sd);
21
22 static const unsigned char preinit_mt9m111[][4] = {
23 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
24 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
25 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
26 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
27 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00},
28 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00},
29 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
30 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
31
32 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
33 {SENSOR, MT9M111_SC_RESET,
34 MT9M111_RESET |
35 MT9M111_RESTART |
36 MT9M111_ANALOG_STANDBY |
37 MT9M111_CHIP_DISABLE,
38 MT9M111_SHOW_BAD_FRAMES |
39 MT9M111_RESTART_BAD_FRAMES |
40 MT9M111_SYNCHRONIZE_CHANGES},
41
42 {BRIDGE, M5602_XB_GPIO_DIR, 0x05, 0x00},
43 {BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00},
44 {BRIDGE, M5602_XB_GPIO_EN_H, 0x3e, 0x00},
45 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00},
46 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00},
47 {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00},
48 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
49 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
50
51 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
52 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
53 {BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00},
54 {BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00},
55 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
56 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
57
58 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00}
59 };
60
61 static const unsigned char init_mt9m111[][4] = {
62 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00},
63 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00},
64 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
65 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
66 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
67 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
68
69 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
70 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00},
71 {BRIDGE, M5602_XB_GPIO_DAT, 0x04, 0x00},
72 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3e, 0x00},
73 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00},
74 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02, 0x00},
75 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00},
76 {BRIDGE, M5602_XB_GPIO_DIR, 0x07, 0x00},
77 {BRIDGE, M5602_XB_GPIO_DAT, 0x0b, 0x00},
78 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x0a, 0x00},
79
80 {SENSOR, MT9M111_SC_RESET, 0x00, 0x29},
81 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
82 {SENSOR, MT9M111_SC_RESET, 0x00, 0x08},
83 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x01},
84 {SENSOR, MT9M111_CP_OPERATING_MODE_CTL, 0x00,
85 MT9M111_CP_OPERATING_MODE_CTL},
86 {SENSOR, MT9M111_CP_LENS_CORRECTION_1, 0x04, 0x2a},
87 {SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_A, 0x00,
88 MT9M111_2D_DEFECT_CORRECTION_ENABLE},
89 {SENSOR, MT9M111_CP_DEFECT_CORR_CONTEXT_B, 0x00,
90 MT9M111_2D_DEFECT_CORRECTION_ENABLE},
91 {SENSOR, MT9M111_CP_LUMA_OFFSET, 0x00, 0x00},
92 {SENSOR, MT9M111_CP_LUMA_CLIP, 0xff, 0x00},
93 {SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_A, 0x14, 0x00},
94 {SENSOR, MT9M111_CP_OUTPUT_FORMAT_CTL2_CONTEXT_B, 0x14, 0x00},
95 {SENSOR, 0xcd, 0x00, 0x0e},
96 {SENSOR, 0xd0, 0x00, 0x40},
97
98 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x02},
99 {SENSOR, MT9M111_CC_AUTO_EXPOSURE_PARAMETER_18, 0x00, 0x00},
100 {SENSOR, MT9M111_CC_AWB_PARAMETER_7, 0xef, 0x03},
101
102 {SENSOR, MT9M111_PAGE_MAP, 0x00, 0x00},
103 {SENSOR, 0x33, 0x03, 0x49},
104 {SENSOR, 0x34, 0xc0, 0x19},
105 {SENSOR, 0x3f, 0x20, 0x20},
106 {SENSOR, 0x40, 0x20, 0x20},
107 {SENSOR, 0x5a, 0xc0, 0x0a},
108 {SENSOR, 0x70, 0x7b, 0x0a},
109 {SENSOR, 0x71, 0xff, 0x00},
110 {SENSOR, 0x72, 0x19, 0x0e},
111 {SENSOR, 0x73, 0x18, 0x0f},
112 {SENSOR, 0x74, 0x57, 0x32},
113 {SENSOR, 0x75, 0x56, 0x34},
114 {SENSOR, 0x76, 0x73, 0x35},
115 {SENSOR, 0x77, 0x30, 0x12},
116 {SENSOR, 0x78, 0x79, 0x02},
117 {SENSOR, 0x79, 0x75, 0x06},
118 {SENSOR, 0x7a, 0x77, 0x0a},
119 {SENSOR, 0x7b, 0x78, 0x09},
120 {SENSOR, 0x7c, 0x7d, 0x06},
121 {SENSOR, 0x7d, 0x31, 0x10},
122 {SENSOR, 0x7e, 0x00, 0x7e},
123 {SENSOR, 0x80, 0x59, 0x04},
124 {SENSOR, 0x81, 0x59, 0x04},
125 {SENSOR, 0x82, 0x57, 0x0a},
126 {SENSOR, 0x83, 0x58, 0x0b},
127 {SENSOR, 0x84, 0x47, 0x0c},
128 {SENSOR, 0x85, 0x48, 0x0e},
129 {SENSOR, 0x86, 0x5b, 0x02},
130 {SENSOR, 0x87, 0x00, 0x5c},
131 {SENSOR, MT9M111_CONTEXT_CONTROL, 0x00, MT9M111_SEL_CONTEXT_B},
132 {SENSOR, 0x60, 0x00, 0x80},
133 {SENSOR, 0x61, 0x00, 0x00},
134 {SENSOR, 0x62, 0x00, 0x00},
135 {SENSOR, 0x63, 0x00, 0x00},
136 {SENSOR, 0x64, 0x00, 0x00},
137
138 {SENSOR, MT9M111_SC_ROWSTART, 0x00, 0x0d}, /* 13 */
139 {SENSOR, MT9M111_SC_COLSTART, 0x00, 0x12}, /* 18 */
140 {SENSOR, MT9M111_SC_WINDOW_HEIGHT, 0x04, 0x00}, /* 1024 */
141 {SENSOR, MT9M111_SC_WINDOW_WIDTH, 0x05, 0x10}, /* 1296 */
142 {SENSOR, MT9M111_SC_HBLANK_CONTEXT_B, 0x01, 0x60}, /* 352 */
143 {SENSOR, MT9M111_SC_VBLANK_CONTEXT_B, 0x00, 0x11}, /* 17 */
144 {SENSOR, MT9M111_SC_HBLANK_CONTEXT_A, 0x01, 0x60}, /* 352 */
145 {SENSOR, MT9M111_SC_VBLANK_CONTEXT_A, 0x00, 0x11}, /* 17 */
146 {SENSOR, MT9M111_SC_R_MODE_CONTEXT_A, 0x01, 0x0f}, /* 271 */
147 {SENSOR, 0x30, 0x04, 0x00},
148 /* Set number of blank rows chosen to 400 */
149 {SENSOR, MT9M111_SC_SHUTTER_WIDTH, 0x01, 0x90},
150 };
151
152 static const unsigned char start_mt9m111[][4] = {
153 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00},
154 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00},
155 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00},
156 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x09, 0x00},
157 {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00},
158 {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00},
159 {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00},
160 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
161 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
162 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
163 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00},
164 };
165
166 static struct v4l2_pix_format mt9m111_modes[] = {
167 {
168 640,
169 480,
170 V4L2_PIX_FMT_SBGGR8,
171 V4L2_FIELD_NONE,
172 .sizeimage = 640 * 480,
173 .bytesperline = 640,
174 .colorspace = V4L2_COLORSPACE_SRGB,
175 .priv = 0
176 }
177 };
178
179 static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
180 .s_ctrl = mt9m111_s_ctrl,
181 };
182
183 static const struct v4l2_ctrl_config mt9m111_greenbal_cfg = {
184 .ops = &mt9m111_ctrl_ops,
185 .id = M5602_V4L2_CID_GREEN_BALANCE,
186 .name = "Green Balance",
187 .type = V4L2_CTRL_TYPE_INTEGER,
188 .min = 0,
189 .max = 0x7ff,
190 .step = 1,
191 .def = MT9M111_GREEN_GAIN_DEFAULT,
192 .flags = V4L2_CTRL_FLAG_SLIDER,
193 };
194
mt9m111_probe(struct sd * sd)195 int mt9m111_probe(struct sd *sd)
196 {
197 u8 data[2] = {0x00, 0x00};
198 int i, err;
199 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
200
201 if (force_sensor) {
202 if (force_sensor == MT9M111_SENSOR) {
203 pr_info("Forcing a %s sensor\n", mt9m111.name);
204 goto sensor_found;
205 }
206 /* If we want to force another sensor, don't try to probe this
207 * one */
208 return -ENODEV;
209 }
210
211 gspca_dbg(gspca_dev, D_PROBE, "Probing for a mt9m111 sensor\n");
212
213 /* Do the preinit */
214 for (i = 0; i < ARRAY_SIZE(preinit_mt9m111); i++) {
215 if (preinit_mt9m111[i][0] == BRIDGE) {
216 err = m5602_write_bridge(sd,
217 preinit_mt9m111[i][1],
218 preinit_mt9m111[i][2]);
219 } else {
220 data[0] = preinit_mt9m111[i][2];
221 data[1] = preinit_mt9m111[i][3];
222 err = m5602_write_sensor(sd,
223 preinit_mt9m111[i][1], data, 2);
224 }
225 if (err < 0)
226 return err;
227 }
228
229 if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2))
230 return -ENODEV;
231
232 if ((data[0] == 0x14) && (data[1] == 0x3a)) {
233 pr_info("Detected a mt9m111 sensor\n");
234 goto sensor_found;
235 }
236
237 return -ENODEV;
238
239 sensor_found:
240 sd->gspca_dev.cam.cam_mode = mt9m111_modes;
241 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes);
242
243 return 0;
244 }
245
mt9m111_init(struct sd * sd)246 int mt9m111_init(struct sd *sd)
247 {
248 int i, err = 0;
249
250 /* Init the sensor */
251 for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) {
252 u8 data[2];
253
254 if (init_mt9m111[i][0] == BRIDGE) {
255 err = m5602_write_bridge(sd,
256 init_mt9m111[i][1],
257 init_mt9m111[i][2]);
258 } else {
259 data[0] = init_mt9m111[i][2];
260 data[1] = init_mt9m111[i][3];
261 err = m5602_write_sensor(sd,
262 init_mt9m111[i][1], data, 2);
263 }
264 }
265
266 if (dump_sensor)
267 mt9m111_dump_registers(sd);
268
269 return 0;
270 }
271
mt9m111_init_controls(struct sd * sd)272 int mt9m111_init_controls(struct sd *sd)
273 {
274 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
275
276 sd->gspca_dev.vdev.ctrl_handler = hdl;
277 v4l2_ctrl_handler_init(hdl, 7);
278
279 sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
280 V4L2_CID_AUTO_WHITE_BALANCE,
281 0, 1, 1, 0);
282 sd->green_bal = v4l2_ctrl_new_custom(hdl, &mt9m111_greenbal_cfg, NULL);
283 sd->red_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
284 V4L2_CID_RED_BALANCE, 0, 0x7ff, 1,
285 MT9M111_RED_GAIN_DEFAULT);
286 sd->blue_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
287 V4L2_CID_BLUE_BALANCE, 0, 0x7ff, 1,
288 MT9M111_BLUE_GAIN_DEFAULT);
289
290 v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_GAIN, 0,
291 (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, 1,
292 MT9M111_DEFAULT_GAIN);
293
294 sd->hflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_HFLIP,
295 0, 1, 1, 0);
296 sd->vflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_VFLIP,
297 0, 1, 1, 0);
298
299 if (hdl->error) {
300 pr_err("Could not initialize controls\n");
301 return hdl->error;
302 }
303
304 v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false);
305 v4l2_ctrl_cluster(2, &sd->hflip);
306
307 return 0;
308 }
309
mt9m111_start(struct sd * sd)310 int mt9m111_start(struct sd *sd)
311 {
312 int i, err = 0;
313 u8 data[2];
314 struct cam *cam = &sd->gspca_dev.cam;
315 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
316
317 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1;
318 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
319
320 for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) {
321 if (start_mt9m111[i][0] == BRIDGE) {
322 err = m5602_write_bridge(sd,
323 start_mt9m111[i][1],
324 start_mt9m111[i][2]);
325 } else {
326 data[0] = start_mt9m111[i][2];
327 data[1] = start_mt9m111[i][3];
328 err = m5602_write_sensor(sd,
329 start_mt9m111[i][1], data, 2);
330 }
331 }
332 if (err < 0)
333 return err;
334
335 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
336 if (err < 0)
337 return err;
338
339 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
340 if (err < 0)
341 return err;
342
343 for (i = 0; i < 2 && !err; i++)
344 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
345 if (err < 0)
346 return err;
347
348 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
349 if (err < 0)
350 return err;
351
352 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2);
353 if (err < 0)
354 return err;
355
356 for (i = 0; i < 2 && !err; i++)
357 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);
358 if (err < 0)
359 return err;
360
361 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
362 (width >> 8) & 0xff);
363 if (err < 0)
364 return err;
365
366 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff);
367 if (err < 0)
368 return err;
369
370 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
371 if (err < 0)
372 return err;
373
374 switch (width) {
375 case 640:
376 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for VGA mode\n");
377 break;
378
379 case 320:
380 gspca_dbg(gspca_dev, D_CONF, "Configuring camera for QVGA mode\n");
381 break;
382 }
383 return err;
384 }
385
mt9m111_disconnect(struct sd * sd)386 void mt9m111_disconnect(struct sd *sd)
387 {
388 sd->sensor = NULL;
389 }
390
mt9m111_set_hvflip(struct gspca_dev * gspca_dev)391 static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev)
392 {
393 int err;
394 u8 data[2] = {0x00, 0x00};
395 struct sd *sd = (struct sd *) gspca_dev;
396 int hflip;
397 int vflip;
398
399 gspca_dbg(gspca_dev, D_CONF, "Set hvflip to %d %d\n",
400 sd->hflip->val, sd->vflip->val);
401
402 /* The mt9m111 is flipped by default */
403 hflip = !sd->hflip->val;
404 vflip = !sd->vflip->val;
405
406 /* Set the correct page map */
407 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
408 if (err < 0)
409 return err;
410
411 data[0] = MT9M111_RMB_OVER_SIZED;
412 if (gspca_dev->pixfmt.width == 640) {
413 data[1] = MT9M111_RMB_ROW_SKIP_2X |
414 MT9M111_RMB_COLUMN_SKIP_2X |
415 (hflip << 1) | vflip;
416 } else {
417 data[1] = MT9M111_RMB_ROW_SKIP_4X |
418 MT9M111_RMB_COLUMN_SKIP_4X |
419 (hflip << 1) | vflip;
420 }
421 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
422 data, 2);
423 return err;
424 }
425
mt9m111_set_auto_white_balance(struct gspca_dev * gspca_dev,__s32 val)426 static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
427 __s32 val)
428 {
429 struct sd *sd = (struct sd *) gspca_dev;
430 int err;
431 u8 data[2];
432
433 err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
434 if (err < 0)
435 return err;
436
437 data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1));
438
439 err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
440
441 gspca_dbg(gspca_dev, D_CONF, "Set auto white balance %d\n", val);
442 return err;
443 }
444
mt9m111_set_gain(struct gspca_dev * gspca_dev,__s32 val)445 static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
446 {
447 int err, tmp;
448 u8 data[2] = {0x00, 0x00};
449 struct sd *sd = (struct sd *) gspca_dev;
450
451 /* Set the correct page map */
452 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
453 if (err < 0)
454 return err;
455
456 if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2)
457 return -EINVAL;
458
459 if ((val >= INITIAL_MAX_GAIN * 2 * 2) &&
460 (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2))
461 tmp = (1 << 10) | (val << 9) |
462 (val << 8) | (val / 8);
463 else if ((val >= INITIAL_MAX_GAIN * 2) &&
464 (val < INITIAL_MAX_GAIN * 2 * 2))
465 tmp = (1 << 9) | (1 << 8) | (val / 4);
466 else if ((val >= INITIAL_MAX_GAIN) &&
467 (val < INITIAL_MAX_GAIN * 2))
468 tmp = (1 << 8) | (val / 2);
469 else
470 tmp = val;
471
472 data[1] = (tmp & 0xff);
473 data[0] = (tmp & 0xff00) >> 8;
474 gspca_dbg(gspca_dev, D_CONF, "tmp=%d, data[1]=%d, data[0]=%d\n", tmp,
475 data[1], data[0]);
476
477 err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN,
478 data, 2);
479
480 return err;
481 }
482
mt9m111_set_green_balance(struct gspca_dev * gspca_dev,__s32 val)483 static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
484 {
485 int err;
486 u8 data[2];
487 struct sd *sd = (struct sd *) gspca_dev;
488
489 data[1] = (val & 0xff);
490 data[0] = (val & 0xff00) >> 8;
491
492 gspca_dbg(gspca_dev, D_CONF, "Set green balance %d\n", val);
493 err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN,
494 data, 2);
495 if (err < 0)
496 return err;
497
498 return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN,
499 data, 2);
500 }
501
mt9m111_set_blue_balance(struct gspca_dev * gspca_dev,__s32 val)502 static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
503 {
504 u8 data[2];
505 struct sd *sd = (struct sd *) gspca_dev;
506
507 data[1] = (val & 0xff);
508 data[0] = (val & 0xff00) >> 8;
509
510 gspca_dbg(gspca_dev, D_CONF, "Set blue balance %d\n", val);
511
512 return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN,
513 data, 2);
514 }
515
mt9m111_set_red_balance(struct gspca_dev * gspca_dev,__s32 val)516 static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
517 {
518 u8 data[2];
519 struct sd *sd = (struct sd *) gspca_dev;
520
521 data[1] = (val & 0xff);
522 data[0] = (val & 0xff00) >> 8;
523
524 gspca_dbg(gspca_dev, D_CONF, "Set red balance %d\n", val);
525
526 return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN,
527 data, 2);
528 }
529
mt9m111_s_ctrl(struct v4l2_ctrl * ctrl)530 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
531 {
532 struct gspca_dev *gspca_dev =
533 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
534 struct sd *sd = (struct sd *) gspca_dev;
535 int err;
536
537 if (!gspca_dev->streaming)
538 return 0;
539
540 switch (ctrl->id) {
541 case V4L2_CID_AUTO_WHITE_BALANCE:
542 err = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val);
543 if (err || ctrl->val)
544 return err;
545 err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val);
546 if (err)
547 return err;
548 err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val);
549 if (err)
550 return err;
551 err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val);
552 break;
553 case V4L2_CID_GAIN:
554 err = mt9m111_set_gain(gspca_dev, ctrl->val);
555 break;
556 case V4L2_CID_HFLIP:
557 err = mt9m111_set_hvflip(gspca_dev);
558 break;
559 default:
560 return -EINVAL;
561 }
562
563 return err;
564 }
565
mt9m111_dump_registers(struct sd * sd)566 static void mt9m111_dump_registers(struct sd *sd)
567 {
568 u8 address, value[2] = {0x00, 0x00};
569
570 pr_info("Dumping the mt9m111 register state\n");
571
572 pr_info("Dumping the mt9m111 sensor core registers\n");
573 value[1] = MT9M111_SENSOR_CORE;
574 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
575 for (address = 0; address < 0xff; address++) {
576 m5602_read_sensor(sd, address, value, 2);
577 pr_info("register 0x%x contains 0x%x%x\n",
578 address, value[0], value[1]);
579 }
580
581 pr_info("Dumping the mt9m111 color pipeline registers\n");
582 value[1] = MT9M111_COLORPIPE;
583 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
584 for (address = 0; address < 0xff; address++) {
585 m5602_read_sensor(sd, address, value, 2);
586 pr_info("register 0x%x contains 0x%x%x\n",
587 address, value[0], value[1]);
588 }
589
590 pr_info("Dumping the mt9m111 camera control registers\n");
591 value[1] = MT9M111_CAMERA_CONTROL;
592 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
593 for (address = 0; address < 0xff; address++) {
594 m5602_read_sensor(sd, address, value, 2);
595 pr_info("register 0x%x contains 0x%x%x\n",
596 address, value[0], value[1]);
597 }
598
599 pr_info("mt9m111 register state dump complete\n");
600 }
601