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[mirror_ubuntu-jammy-kernel.git] / drivers / media / usb / gspca / m5602 / m5602_po1030.c
CommitLineData
c109f816
EA		 1/*
2 * Driver for the po1030 sensor
3 *
0c505e68 4 * Copyright (c) 2008 Erik Andrén
c109f816
EA		 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
bdfe91f4
JP		 19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
c109f816
EA		 21#include "m5602_po1030.h"
22
c84e412f
HG		 23static int po1030_s_ctrl(struct v4l2_ctrl *ctrl);
24static void po1030_dump_registers(struct sd *sd);
cf811d50 25
804c7812
MCC		 26static const unsigned char preinit_po1030[][3] = {
27 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},
28 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},
29 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
30 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
31 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
32 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},
33 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
34 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
35 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},
36 {BRIDGE, M5602_XB_GPIO_DAT, 0x04},
37 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
38 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
39 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02},
40
41 {SENSOR, PO1030_AUTOCTRL2, PO1030_SENSOR_RESET | (1 << 2)},
42
43 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x04},
44 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
45 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
46 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
47 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
48 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},
49 {BRIDGE, M5602_XB_GPIO_DAT, 0x00}
50};
51
52static const unsigned char init_po1030[][3] = {
53 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},
54 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},
55 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
56 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
57 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
58 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},
59 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
60
61 {SENSOR, PO1030_AUTOCTRL2, PO1030_SENSOR_RESET | (1 << 2)},
62
63 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},
64 {BRIDGE, M5602_XB_GPIO_DAT, 0x04},
65 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
66 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00},
67 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
68 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x02},
69 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x04},
70 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
71 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},
72 {BRIDGE, M5602_XB_GPIO_DAT, 0x00},
73
74 {SENSOR, PO1030_AUTOCTRL2, 0x04},
75
76 {SENSOR, PO1030_OUTFORMCTRL2, PO1030_RAW_RGB_BAYER},
77 {SENSOR, PO1030_AUTOCTRL1, PO1030_WEIGHT_WIN_2X},
78
79 {SENSOR, PO1030_CONTROL2, 0x03},
80 {SENSOR, 0x21, 0x90},
81 {SENSOR, PO1030_YTARGET, 0x60},
82 {SENSOR, 0x59, 0x13},
83 {SENSOR, PO1030_OUTFORMCTRL1, PO1030_HREF_ENABLE},
84 {SENSOR, PO1030_EDGE_ENH_OFF, 0x00},
85 {SENSOR, PO1030_EGA, 0x80},
86 {SENSOR, 0x78, 0x14},
87 {SENSOR, 0x6f, 0x01},
88 {SENSOR, PO1030_GLOBALGAINMAX, 0x14},
89 {SENSOR, PO1030_Cb_U_GAIN, 0x38},
90 {SENSOR, PO1030_Cr_V_GAIN, 0x38},
91 {SENSOR, PO1030_CONTROL1, PO1030_SHUTTER_MODE |
92 PO1030_AUTO_SUBSAMPLING |
93 PO1030_FRAME_EQUAL},
94 {SENSOR, PO1030_GC0, 0x10},
95 {SENSOR, PO1030_GC1, 0x20},
96 {SENSOR, PO1030_GC2, 0x40},
97 {SENSOR, PO1030_GC3, 0x60},
98 {SENSOR, PO1030_GC4, 0x80},
99 {SENSOR, PO1030_GC5, 0xa0},
100 {SENSOR, PO1030_GC6, 0xc0},
101 {SENSOR, PO1030_GC7, 0xff},
102
103 /* Set the width to 751 */
104 {SENSOR, PO1030_FRAMEWIDTH_H, 0x02},
105 {SENSOR, PO1030_FRAMEWIDTH_L, 0xef},
106
107 /* Set the height to 540 */
108 {SENSOR, PO1030_FRAMEHEIGHT_H, 0x02},
109 {SENSOR, PO1030_FRAMEHEIGHT_L, 0x1c},
110
111 /* Set the x window to 1 */
112 {SENSOR, PO1030_WINDOWX_H, 0x00},
113 {SENSOR, PO1030_WINDOWX_L, 0x01},
114
115 /* Set the y window to 1 */
116 {SENSOR, PO1030_WINDOWY_H, 0x00},
117 {SENSOR, PO1030_WINDOWY_L, 0x01},
118
119 /* with a very low lighted environment increase the exposure but
120 * decrease the FPS (Frame Per Second) */
121 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
122 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
123
124 {BRIDGE, M5602_XB_GPIO_DIR, 0x05},
125 {BRIDGE, M5602_XB_GPIO_DAT, 0x00},
126 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
127 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00},
128};
129
74cadfe1
EA		 130static struct v4l2_pix_format po1030_modes[] = {
131 {
132 640,
133 480,
134 V4L2_PIX_FMT_SBGGR8,
135 V4L2_FIELD_NONE,
136 .sizeimage = 640 * 480,
137 .bytesperline = 640,
138 .colorspace = V4L2_COLORSPACE_SRGB,
9536a57e 139 .priv = 2
74cadfe1
EA		 140 }
141};
142
c84e412f
HG		 143static const struct v4l2_ctrl_ops po1030_ctrl_ops = {
144 .s_ctrl = po1030_s_ctrl,
e17cc08c
EA		 145};
146
c84e412f
HG		 147static const struct v4l2_ctrl_config po1030_greenbal_cfg = {
148 .ops = &po1030_ctrl_ops,
149 .id = M5602_V4L2_CID_GREEN_BALANCE,
150 .name = "Green Balance",
151 .type = V4L2_CTRL_TYPE_INTEGER,
152 .min = 0,
153 .max = 255,
154 .step = 1,
155 .def = PO1030_GREEN_GAIN_DEFAULT,
156 .flags = V4L2_CTRL_FLAG_SLIDER,
157};
658efb63 158
c109f816
EA		 159int po1030_probe(struct sd *sd)
160{
a21a0eb5 161 int rc = 0;
3e5cbad0 162 u8 dev_id_h = 0, i;
c93396e1 163 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
c109f816
EA		 164
165 if (force_sensor) {
166 if (force_sensor == PO1030_SENSOR) {
bdfe91f4 167 pr_info("Forcing a %s sensor\n", po1030.name);
c109f816
EA		 168 goto sensor_found;
169 }
170 /* If we want to force another sensor, don't try to probe this
171 * one */
172 return -ENODEV;
173 }
174
37d5efb0 175 gspca_dbg(gspca_dev, D_PROBE, "Probing for a po1030 sensor\n");
c109f816
EA		 176
177 /* Run the pre-init to actually probe the unit */
178 for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) {
179 u8 data = preinit_po1030[i][2];
180 if (preinit_po1030[i][0] == SENSOR)
a21a0eb5 181 rc |= m5602_write_sensor(sd,
c109f816
EA		 182 preinit_po1030[i][1], &data, 1);
183 else
a21a0eb5
AP		 184 rc |= m5602_write_bridge(sd, preinit_po1030[i][1],
185 data);
c109f816 186 }
a21a0eb5
AP		 187 if (rc < 0)
188 return rc;
c109f816 189
fcb98108 190 if (m5602_read_sensor(sd, PO1030_DEVID_H, &dev_id_h, 1))
c109f816
EA		 191 return -ENODEV;
192
3e5cbad0 193 if (dev_id_h == 0x30) {
bdfe91f4 194 pr_info("Detected a po1030 sensor\n");
c109f816
EA		 195 goto sensor_found;
196 }
197 return -ENODEV;
198
199sensor_found:
74cadfe1
EA		 200 sd->gspca_dev.cam.cam_mode = po1030_modes;
201 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(po1030_modes);
cb29e691 202
c109f816
EA		 203 return 0;
204}
205
c109f816
EA		 206int po1030_init(struct sd *sd)
207{
208 int i, err = 0;
209
210 /* Init the sensor */
7b9f2467 211 for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {
c109f816
EA		 212 u8 data[2] = {0x00, 0x00};
213
214 switch (init_po1030[i][0]) {
215 case BRIDGE:
216 err = m5602_write_bridge(sd,
217 init_po1030[i][1],
218 init_po1030[i][2]);
219 break;
220
221 case SENSOR:
222 data[0] = init_po1030[i][2];
6dc4cff0 223 err = m5602_write_sensor(sd,
c109f816
EA		 224 init_po1030[i][1], data, 1);
225 break;
226
c109f816 227 default:
bdfe91f4 228 pr_info("Invalid stream command, exiting init\n");
c109f816
EA		 229 return -EINVAL;
230 }
231 }
cb29e691
EA		 232 if (err < 0)
233 return err;
c109f816 234
36e756c5
EA		 235 if (dump_sensor)
236 po1030_dump_registers(sd);
237
c84e412f
HG		 238 return 0;
239}
3b9ae658 240
c84e412f
HG		 241int po1030_init_controls(struct sd *sd)
242{
243 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
244
245 sd->gspca_dev.vdev.ctrl_handler = hdl;
246 v4l2_ctrl_handler_init(hdl, 9);
247
248 sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,
249 V4L2_CID_AUTO_WHITE_BALANCE,
250 0, 1, 1, 0);
251 sd->green_bal = v4l2_ctrl_new_custom(hdl, &po1030_greenbal_cfg, NULL);
252 sd->red_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,
253 V4L2_CID_RED_BALANCE, 0, 255, 1,
254 PO1030_RED_GAIN_DEFAULT);
255 sd->blue_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,
256 V4L2_CID_BLUE_BALANCE, 0, 255, 1,
257 PO1030_BLUE_GAIN_DEFAULT);
258
259 sd->autoexpo = v4l2_ctrl_new_std_menu(hdl, &po1030_ctrl_ops,
260 V4L2_CID_EXPOSURE_AUTO, 1, 0, V4L2_EXPOSURE_MANUAL);
261 sd->expo = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_EXPOSURE,
262 0, 0x2ff, 1, PO1030_EXPOSURE_DEFAULT);
263
264 sd->gain = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_GAIN, 0,
265 0x4f, 1, PO1030_GLOBAL_GAIN_DEFAULT);
266
267 sd->hflip = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_HFLIP,
268 0, 1, 1, 0);
269 sd->vflip = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_VFLIP,
270 0, 1, 1, 0);
271
272 if (hdl->error) {
273 pr_err("Could not initialize controls\n");
274 return hdl->error;
275 }
b933d585 276
c84e412f
HG		 277 v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false);
278 v4l2_ctrl_auto_cluster(2, &sd->autoexpo, 0, false);
279 v4l2_ctrl_cluster(2, &sd->hflip);
dd9ce84a 280
c84e412f 281 return 0;
c109f816
EA		 282}
283
c996b368
EA		 284int po1030_start(struct sd *sd)
285{
e807f20d 286 struct cam *cam = &sd->gspca_dev.cam;
c996b368 287 int i, err = 0;
e807f20d
EA		 288 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width;
289 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
9536a57e 290 int ver_offs = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
e807f20d
EA		 291 u8 data;
292
293 switch (width) {
931a1c8d
EA		 294 case 320:
295 data = PO1030_SUBSAMPLING;
296 err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);
297 if (err < 0)
298 return err;
299
300 data = ((width + 3) >> 8) & 0xff;
301 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);
302 if (err < 0)
303 return err;
304
305 data = (width + 3) & 0xff;
306 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);
307 if (err < 0)
308 return err;
309
310 data = ((height + 1) >> 8) & 0xff;
311 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);
312 if (err < 0)
313 return err;
314
315 data = (height + 1) & 0xff;
316 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);
317
318 height += 6;
319 width -= 1;
320 break;
321
e807f20d 322 case 640:
894e4087
EA		 323 data = 0;
324 err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);
325 if (err < 0)
326 return err;
327
e807f20d
EA		 328 data = ((width + 7) >> 8) & 0xff;
329 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);
330 if (err < 0)
331 return err;
332
333 data = (width + 7) & 0xff;
334 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);
335 if (err < 0)
336 return err;
337
338 data = ((height + 3) >> 8) & 0xff;
339 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);
340 if (err < 0)
341 return err;
342
343 data = (height + 3) & 0xff;
344 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);
9536a57e
EA		 345
346 height += 12;
347 width -= 2;
e807f20d
EA		 348 break;
349 }
98192670
EA		 350 err = m5602_write_bridge(sd, M5602_XB_SENSOR_TYPE, 0x0c);
351 if (err < 0)
352 return err;
e807f20d 353
9536a57e
EA		 354 err = m5602_write_bridge(sd, M5602_XB_LINE_OF_FRAME_H, 0x81);
355 if (err < 0)
356 return err;
357
358 err = m5602_write_bridge(sd, M5602_XB_PIX_OF_LINE_H, 0x82);
359 if (err < 0)
360 return err;
361
98192670
EA		 362 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0x01);
363 if (err < 0)
364 return err;
365
9536a57e
EA		 366 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,
367 ((ver_offs >> 8) & 0xff));
368 if (err < 0)
369 return err;
370
371 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (ver_offs & 0xff));
372 if (err < 0)
373 return err;
374
98192670
EA		 375 for (i = 0; i < 2 && !err; i++)
376 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
9536a57e
EA		 377 if (err < 0)
378 return err;
379
380 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
381 if (err < 0)
382 return err;
383
384 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
385 if (err < 0)
386 return err;
387
388 for (i = 0; i < 2 && !err; i++)
389 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
390
98192670
EA		 391 for (i = 0; i < 2 && !err; i++)
392 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
393
9536a57e
EA		 394 for (i = 0; i < 2 && !err; i++)
395 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);
396 if (err < 0)
397 return err;
398
399 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (width >> 8) & 0xff);
400 if (err < 0)
401 return err;
402
403 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (width & 0xff));
98192670
EA		 404 if (err < 0)
405 return err;
406
407 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
c996b368
EA		 408 return err;
409}
410
cf811d50 411static int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
c109f816
EA		 412{
413 struct sd *sd = (struct sd *) gspca_dev;
414 u8 i2c_data;
415 int err;
416
37d5efb0 417 gspca_dbg(gspca_dev, D_CONF, "Set exposure to %d\n", val & 0xffff);
c109f816
EA		 418
419 i2c_data = ((val & 0xff00) >> 8);
37d5efb0
JP		 420 gspca_dbg(gspca_dev, D_CONF, "Set exposure to high byte to 0x%x\n",
421 i2c_data);
c109f816 422
bb9460eb 423 err = m5602_write_sensor(sd, PO1030_INTEGLINES_H,
c109f816
EA		 424 &i2c_data, 1);
425 if (err < 0)
051781b3 426 return err;
c109f816
EA		 427
428 i2c_data = (val & 0xff);
37d5efb0
JP		 429 gspca_dbg(gspca_dev, D_CONF, "Set exposure to low byte to 0x%x\n",
430 i2c_data);
bb9460eb 431 err = m5602_write_sensor(sd, PO1030_INTEGLINES_M,
c109f816
EA		 432 &i2c_data, 1);
433
7b9f2467 434 return err;
c109f816
EA		 435}
436
cf811d50 437static int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
e2c97491
EA		 438{
439 struct sd *sd = (struct sd *) gspca_dev;
440 u8 i2c_data;
441 int err;
442
05d7d9ce 443 i2c_data = val & 0xff;
37d5efb0 444 gspca_dbg(gspca_dev, D_CONF, "Set global gain to %d\n", i2c_data);
bb9460eb 445 err = m5602_write_sensor(sd, PO1030_GLOBALGAIN,
e2c97491 446 &i2c_data, 1);
05d7d9ce
EA		 447 return err;
448}
e2c97491 449
c84e412f 450static int po1030_set_hvflip(struct gspca_dev *gspca_dev)
e2c97491
EA		 451{
452 struct sd *sd = (struct sd *) gspca_dev;
e2c97491
EA		 453 u8 i2c_data;
454 int err;
455
37d5efb0
JP		 456 gspca_dbg(gspca_dev, D_CONF, "Set hvflip %d %d\n",
457 sd->hflip->val, sd->vflip->val);
bb9460eb 458 err = m5602_read_sensor(sd, PO1030_CONTROL2, &i2c_data, 1);
1d07b6f1 459 if (err < 0)
051781b3 460 return err;
e2c97491 461
c84e412f
HG		 462 i2c_data = (0x3f & i2c_data) | (sd->hflip->val << 7) |
463 (sd->vflip->val << 6);
e2c97491 464
bb9460eb 465 err = m5602_write_sensor(sd, PO1030_CONTROL2,
1d07b6f1 466 &i2c_data, 1);
e2c97491 467
7b9f2467 468 return err;
e2c97491
EA		 469}
470
cf811d50 471static int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
c109f816
EA		 472{
473 struct sd *sd = (struct sd *) gspca_dev;
474 u8 i2c_data;
475 int err;
476
477 i2c_data = val & 0xff;
37d5efb0 478 gspca_dbg(gspca_dev, D_CONF, "Set red gain to %d\n", i2c_data);
bb9460eb 479 err = m5602_write_sensor(sd, PO1030_RED_GAIN,
c109f816 480 &i2c_data, 1);
7b9f2467 481 return err;
c109f816
EA		 482}
483
cf811d50 484static int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
c109f816
EA		 485{
486 struct sd *sd = (struct sd *) gspca_dev;
487 u8 i2c_data;
488 int err;
05d7d9ce 489
c109f816 490 i2c_data = val & 0xff;
37d5efb0 491 gspca_dbg(gspca_dev, D_CONF, "Set blue gain to %d\n", i2c_data);
bb9460eb 492 err = m5602_write_sensor(sd, PO1030_BLUE_GAIN,
c109f816
EA		 493 &i2c_data, 1);
494
7b9f2467 495 return err;
c109f816
EA		 496}
497
b933d585
EA		 498static int po1030_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
499{
500 struct sd *sd = (struct sd *) gspca_dev;
b933d585
EA		 501 u8 i2c_data;
502 int err;
503
b933d585 504 i2c_data = val & 0xff;
37d5efb0 505 gspca_dbg(gspca_dev, D_CONF, "Set green gain to %d\n", i2c_data);
b933d585
EA		 506
507 err = m5602_write_sensor(sd, PO1030_GREEN_1_GAIN,
508 &i2c_data, 1);
509 if (err < 0)
510 return err;
511
512 return m5602_write_sensor(sd, PO1030_GREEN_2_GAIN,
513 &i2c_data, 1);
514}
515
cf811d50
EA		 516static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,
517 __s32 val)
3b9ae658
EA		 518{
519 struct sd *sd = (struct sd *) gspca_dev;
3b9ae658
EA		 520 u8 i2c_data;
521 int err;
522
3b9ae658
EA		 523 err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
524 if (err < 0)
525 return err;
526
37d5efb0 527 gspca_dbg(gspca_dev, D_CONF, "Set auto white balance to %d\n", val);
3b9ae658
EA		 528 i2c_data = (i2c_data & 0xfe) | (val & 0x01);
529 err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
530 return err;
531}
532
dd9ce84a
EA		 533static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev,
534 __s32 val)
535{
536 struct sd *sd = (struct sd *) gspca_dev;
dd9ce84a
EA		 537 u8 i2c_data;
538 int err;
539
dd9ce84a
EA		 540 err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
541 if (err < 0)
542 return err;
543
37d5efb0 544 gspca_dbg(gspca_dev, D_CONF, "Set auto exposure to %d\n", val);
c84e412f 545 val = (val == V4L2_EXPOSURE_AUTO);
dd9ce84a
EA		 546 i2c_data = (i2c_data & 0xfd) | ((val & 0x01) << 1);
547 return m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
548}
549
05d7d9ce
EA		 550void po1030_disconnect(struct sd *sd)
551{
552 sd->sensor = NULL;
c84e412f
HG		 553}
554
555static int po1030_s_ctrl(struct v4l2_ctrl *ctrl)
556{
557 struct gspca_dev *gspca_dev =
558 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
559 struct sd *sd = (struct sd *) gspca_dev;
560 int err;
561
562 if (!gspca_dev->streaming)
563 return 0;
564
565 switch (ctrl->id) {
566 case V4L2_CID_AUTO_WHITE_BALANCE:
567 err = po1030_set_auto_white_balance(gspca_dev, ctrl->val);
568 if (err || ctrl->val)
569 return err;
570 err = po1030_set_green_balance(gspca_dev, sd->green_bal->val);
571 if (err)
572 return err;
573 err = po1030_set_red_balance(gspca_dev, sd->red_bal->val);
574 if (err)
575 return err;
576 err = po1030_set_blue_balance(gspca_dev, sd->blue_bal->val);
577 break;
578 case V4L2_CID_EXPOSURE_AUTO:
579 err = po1030_set_auto_exposure(gspca_dev, ctrl->val);
580 if (err || ctrl->val == V4L2_EXPOSURE_AUTO)
581 return err;
582 err = po1030_set_exposure(gspca_dev, sd->expo->val);
583 break;
584 case V4L2_CID_GAIN:
585 err = po1030_set_gain(gspca_dev, ctrl->val);
586 break;
587 case V4L2_CID_HFLIP:
588 err = po1030_set_hvflip(gspca_dev);
589 break;
590 default:
591 return -EINVAL;
592 }
593
594 return err;
05d7d9ce
EA		 595}
596
658efb63 597static void po1030_dump_registers(struct sd *sd)
c109f816
EA		 598{
599 int address;
600 u8 value = 0;
601
bdfe91f4 602 pr_info("Dumping the po1030 sensor core registers\n");
c109f816 603 for (address = 0; address < 0x7f; address++) {
c061c97e 604 m5602_read_sensor(sd, address, &value, 1);
bdfe91f4 605 pr_info("register 0x%x contains 0x%x\n", address, value);
c109f816
EA		 606 }
607
bdfe91f4 608 pr_info("po1030 register state dump complete\n");
c109f816 609
bdfe91f4 610 pr_info("Probing for which registers that are read/write\n");
c109f816
EA		 611 for (address = 0; address < 0xff; address++) {
612 u8 old_value, ctrl_value;
613 u8 test_value[2] = {0xff, 0xff};
614
c061c97e 615 m5602_read_sensor(sd, address, &old_value, 1);
6dc4cff0 616 m5602_write_sensor(sd, address, test_value, 1);
c061c97e 617 m5602_read_sensor(sd, address, &ctrl_value, 1);
c109f816
EA		 618
619 if (ctrl_value == test_value[0])
bdfe91f4 620 pr_info("register 0x%x is writeable\n", address);
c109f816 621 else
bdfe91f4 622 pr_info("register 0x%x is read only\n", address);
c109f816
EA		 623
624 /* Restore original value */
6dc4cff0 625 m5602_write_sensor(sd, address, &old_value, 1);
c109f816
EA		 626 }
627}
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