Commit | Line | Data |
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2f6e2404 JK |
1 | /* |
2 | * V4L2 SoC Camera driver for OmniVision OV6650 Camera Sensor | |
3 | * | |
4 | * Copyright (C) 2010 Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> | |
5 | * | |
6 | * Based on OmniVision OV96xx Camera Driver | |
7 | * Copyright (C) 2009 Marek Vasut <marek.vasut@gmail.com> | |
8 | * | |
9 | * Based on ov772x camera driver: | |
10 | * Copyright (C) 2008 Renesas Solutions Corp. | |
11 | * Kuninori Morimoto <morimoto.kuninori@renesas.com> | |
12 | * | |
13 | * Based on ov7670 and soc_camera_platform driver, | |
14 | * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> | |
15 | * Copyright (C) 2008 Magnus Damm | |
16 | * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> | |
17 | * | |
18 | * Hardware specific bits initialy based on former work by Matt Callow | |
19 | * drivers/media/video/omap/sensor_ov6650.c | |
20 | * Copyright (C) 2006 Matt Callow | |
21 | * | |
22 | * This program is free software; you can redistribute it and/or modify | |
23 | * it under the terms of the GNU General Public License version 2 as | |
24 | * published by the Free Software Foundation. | |
25 | */ | |
26 | ||
27 | #include <linux/bitops.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/i2c.h> | |
30 | #include <linux/slab.h> | |
31 | ||
32 | #include <media/soc_camera.h> | |
59ca25b7 | 33 | #include <media/soc_mediabus.h> |
2f6e2404 | 34 | #include <media/v4l2-chip-ident.h> |
afd9690c | 35 | #include <media/v4l2-ctrls.h> |
2f6e2404 | 36 | |
2f6e2404 JK |
37 | /* Register definitions */ |
38 | #define REG_GAIN 0x00 /* range 00 - 3F */ | |
39 | #define REG_BLUE 0x01 | |
40 | #define REG_RED 0x02 | |
41 | #define REG_SAT 0x03 /* [7:4] saturation [0:3] reserved */ | |
42 | #define REG_HUE 0x04 /* [7:6] rsrvd [5] hue en [4:0] hue */ | |
43 | ||
44 | #define REG_BRT 0x06 | |
45 | ||
46 | #define REG_PIDH 0x0a | |
47 | #define REG_PIDL 0x0b | |
48 | ||
49 | #define REG_AECH 0x10 | |
50 | #define REG_CLKRC 0x11 /* Data Format and Internal Clock */ | |
51 | /* [7:6] Input system clock (MHz)*/ | |
52 | /* 00=8, 01=12, 10=16, 11=24 */ | |
53 | /* [5:0]: Internal Clock Pre-Scaler */ | |
54 | #define REG_COMA 0x12 /* [7] Reset */ | |
55 | #define REG_COMB 0x13 | |
56 | #define REG_COMC 0x14 | |
57 | #define REG_COMD 0x15 | |
58 | #define REG_COML 0x16 | |
59 | #define REG_HSTRT 0x17 | |
60 | #define REG_HSTOP 0x18 | |
61 | #define REG_VSTRT 0x19 | |
62 | #define REG_VSTOP 0x1a | |
63 | #define REG_PSHFT 0x1b | |
64 | #define REG_MIDH 0x1c | |
65 | #define REG_MIDL 0x1d | |
66 | #define REG_HSYNS 0x1e | |
67 | #define REG_HSYNE 0x1f | |
68 | #define REG_COME 0x20 | |
69 | #define REG_YOFF 0x21 | |
70 | #define REG_UOFF 0x22 | |
71 | #define REG_VOFF 0x23 | |
72 | #define REG_AEW 0x24 | |
73 | #define REG_AEB 0x25 | |
74 | #define REG_COMF 0x26 | |
75 | #define REG_COMG 0x27 | |
76 | #define REG_COMH 0x28 | |
77 | #define REG_COMI 0x29 | |
78 | ||
79 | #define REG_FRARL 0x2b | |
80 | #define REG_COMJ 0x2c | |
81 | #define REG_COMK 0x2d | |
82 | #define REG_AVGY 0x2e | |
83 | #define REG_REF0 0x2f | |
84 | #define REG_REF1 0x30 | |
85 | #define REG_REF2 0x31 | |
86 | #define REG_FRAJH 0x32 | |
87 | #define REG_FRAJL 0x33 | |
88 | #define REG_FACT 0x34 | |
89 | #define REG_L1AEC 0x35 | |
90 | #define REG_AVGU 0x36 | |
91 | #define REG_AVGV 0x37 | |
92 | ||
93 | #define REG_SPCB 0x60 | |
94 | #define REG_SPCC 0x61 | |
95 | #define REG_GAM1 0x62 | |
96 | #define REG_GAM2 0x63 | |
97 | #define REG_GAM3 0x64 | |
98 | #define REG_SPCD 0x65 | |
99 | ||
100 | #define REG_SPCE 0x68 | |
101 | #define REG_ADCL 0x69 | |
102 | ||
103 | #define REG_RMCO 0x6c | |
104 | #define REG_GMCO 0x6d | |
105 | #define REG_BMCO 0x6e | |
106 | ||
107 | ||
108 | /* Register bits, values, etc. */ | |
109 | #define OV6650_PIDH 0x66 /* high byte of product ID number */ | |
110 | #define OV6650_PIDL 0x50 /* low byte of product ID number */ | |
111 | #define OV6650_MIDH 0x7F /* high byte of mfg ID */ | |
112 | #define OV6650_MIDL 0xA2 /* low byte of mfg ID */ | |
113 | ||
114 | #define DEF_GAIN 0x00 | |
115 | #define DEF_BLUE 0x80 | |
116 | #define DEF_RED 0x80 | |
117 | ||
118 | #define SAT_SHIFT 4 | |
119 | #define SAT_MASK (0xf << SAT_SHIFT) | |
120 | #define SET_SAT(x) (((x) << SAT_SHIFT) & SAT_MASK) | |
121 | ||
122 | #define HUE_EN BIT(5) | |
123 | #define HUE_MASK 0x1f | |
124 | #define DEF_HUE 0x10 | |
125 | #define SET_HUE(x) (HUE_EN | ((x) & HUE_MASK)) | |
126 | ||
127 | #define DEF_AECH 0x4D | |
128 | ||
129 | #define CLKRC_6MHz 0x00 | |
130 | #define CLKRC_12MHz 0x40 | |
131 | #define CLKRC_16MHz 0x80 | |
132 | #define CLKRC_24MHz 0xc0 | |
133 | #define CLKRC_DIV_MASK 0x3f | |
134 | #define GET_CLKRC_DIV(x) (((x) & CLKRC_DIV_MASK) + 1) | |
135 | ||
136 | #define COMA_RESET BIT(7) | |
137 | #define COMA_QCIF BIT(5) | |
138 | #define COMA_RAW_RGB BIT(4) | |
139 | #define COMA_RGB BIT(3) | |
140 | #define COMA_BW BIT(2) | |
141 | #define COMA_WORD_SWAP BIT(1) | |
142 | #define COMA_BYTE_SWAP BIT(0) | |
143 | #define DEF_COMA 0x00 | |
144 | ||
145 | #define COMB_FLIP_V BIT(7) | |
146 | #define COMB_FLIP_H BIT(5) | |
147 | #define COMB_BAND_FILTER BIT(4) | |
148 | #define COMB_AWB BIT(2) | |
149 | #define COMB_AGC BIT(1) | |
150 | #define COMB_AEC BIT(0) | |
151 | #define DEF_COMB 0x5f | |
152 | ||
153 | #define COML_ONE_CHANNEL BIT(7) | |
154 | ||
155 | #define DEF_HSTRT 0x24 | |
156 | #define DEF_HSTOP 0xd4 | |
157 | #define DEF_VSTRT 0x04 | |
158 | #define DEF_VSTOP 0x94 | |
159 | ||
160 | #define COMF_HREF_LOW BIT(4) | |
161 | ||
162 | #define COMJ_PCLK_RISING BIT(4) | |
163 | #define COMJ_VSYNC_HIGH BIT(0) | |
164 | ||
165 | /* supported resolutions */ | |
166 | #define W_QCIF (DEF_HSTOP - DEF_HSTRT) | |
167 | #define W_CIF (W_QCIF << 1) | |
168 | #define H_QCIF (DEF_VSTOP - DEF_VSTRT) | |
169 | #define H_CIF (H_QCIF << 1) | |
170 | ||
171 | #define FRAME_RATE_MAX 30 | |
172 | ||
173 | ||
174 | struct ov6650_reg { | |
175 | u8 reg; | |
176 | u8 val; | |
177 | }; | |
178 | ||
179 | struct ov6650 { | |
180 | struct v4l2_subdev subdev; | |
afd9690c HV |
181 | struct v4l2_ctrl_handler hdl; |
182 | struct { | |
183 | /* exposure/autoexposure cluster */ | |
184 | struct v4l2_ctrl *autoexposure; | |
185 | struct v4l2_ctrl *exposure; | |
186 | }; | |
187 | struct { | |
188 | /* gain/autogain cluster */ | |
189 | struct v4l2_ctrl *autogain; | |
190 | struct v4l2_ctrl *gain; | |
191 | }; | |
192 | struct { | |
193 | /* blue/red/autowhitebalance cluster */ | |
194 | struct v4l2_ctrl *autowb; | |
195 | struct v4l2_ctrl *blue; | |
196 | struct v4l2_ctrl *red; | |
197 | }; | |
2f6e2404 JK |
198 | bool half_scale; /* scale down output by 2 */ |
199 | struct v4l2_rect rect; /* sensor cropping window */ | |
200 | unsigned long pclk_limit; /* from host */ | |
201 | unsigned long pclk_max; /* from resolution and format */ | |
202 | struct v4l2_fract tpf; /* as requested with s_parm */ | |
203 | enum v4l2_mbus_pixelcode code; | |
204 | enum v4l2_colorspace colorspace; | |
205 | }; | |
206 | ||
207 | ||
208 | static enum v4l2_mbus_pixelcode ov6650_codes[] = { | |
209 | V4L2_MBUS_FMT_YUYV8_2X8, | |
210 | V4L2_MBUS_FMT_UYVY8_2X8, | |
211 | V4L2_MBUS_FMT_YVYU8_2X8, | |
212 | V4L2_MBUS_FMT_VYUY8_2X8, | |
213 | V4L2_MBUS_FMT_SBGGR8_1X8, | |
07670433 | 214 | V4L2_MBUS_FMT_Y8_1X8, |
2f6e2404 JK |
215 | }; |
216 | ||
2f6e2404 JK |
217 | /* read a register */ |
218 | static int ov6650_reg_read(struct i2c_client *client, u8 reg, u8 *val) | |
219 | { | |
220 | int ret; | |
221 | u8 data = reg; | |
222 | struct i2c_msg msg = { | |
223 | .addr = client->addr, | |
224 | .flags = 0, | |
225 | .len = 1, | |
226 | .buf = &data, | |
227 | }; | |
228 | ||
229 | ret = i2c_transfer(client->adapter, &msg, 1); | |
230 | if (ret < 0) | |
231 | goto err; | |
232 | ||
233 | msg.flags = I2C_M_RD; | |
234 | ret = i2c_transfer(client->adapter, &msg, 1); | |
235 | if (ret < 0) | |
236 | goto err; | |
237 | ||
238 | *val = data; | |
239 | return 0; | |
240 | ||
241 | err: | |
242 | dev_err(&client->dev, "Failed reading register 0x%02x!\n", reg); | |
243 | return ret; | |
244 | } | |
245 | ||
246 | /* write a register */ | |
247 | static int ov6650_reg_write(struct i2c_client *client, u8 reg, u8 val) | |
248 | { | |
249 | int ret; | |
250 | unsigned char data[2] = { reg, val }; | |
251 | struct i2c_msg msg = { | |
252 | .addr = client->addr, | |
253 | .flags = 0, | |
254 | .len = 2, | |
255 | .buf = data, | |
256 | }; | |
257 | ||
258 | ret = i2c_transfer(client->adapter, &msg, 1); | |
259 | udelay(100); | |
260 | ||
261 | if (ret < 0) { | |
262 | dev_err(&client->dev, "Failed writing register 0x%02x!\n", reg); | |
263 | return ret; | |
264 | } | |
265 | return 0; | |
266 | } | |
267 | ||
268 | ||
269 | /* Read a register, alter its bits, write it back */ | |
270 | static int ov6650_reg_rmw(struct i2c_client *client, u8 reg, u8 set, u8 mask) | |
271 | { | |
272 | u8 val; | |
273 | int ret; | |
274 | ||
275 | ret = ov6650_reg_read(client, reg, &val); | |
276 | if (ret) { | |
277 | dev_err(&client->dev, | |
278 | "[Read]-Modify-Write of register 0x%02x failed!\n", | |
279 | reg); | |
280 | return ret; | |
281 | } | |
282 | ||
283 | val &= ~mask; | |
284 | val |= set; | |
285 | ||
286 | ret = ov6650_reg_write(client, reg, val); | |
287 | if (ret) | |
288 | dev_err(&client->dev, | |
289 | "Read-Modify-[Write] of register 0x%02x failed!\n", | |
290 | reg); | |
291 | ||
292 | return ret; | |
293 | } | |
294 | ||
295 | static struct ov6650 *to_ov6650(const struct i2c_client *client) | |
296 | { | |
297 | return container_of(i2c_get_clientdata(client), struct ov6650, subdev); | |
298 | } | |
299 | ||
300 | /* Start/Stop streaming from the device */ | |
301 | static int ov6650_s_stream(struct v4l2_subdev *sd, int enable) | |
302 | { | |
303 | return 0; | |
304 | } | |
305 | ||
2f6e2404 | 306 | /* Get status of additional camera capabilities */ |
afd9690c | 307 | static int ov6550_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
2f6e2404 | 308 | { |
afd9690c HV |
309 | struct ov6650 *priv = container_of(ctrl->handler, struct ov6650, hdl); |
310 | struct v4l2_subdev *sd = &priv->subdev; | |
2f6e2404 | 311 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
afd9690c | 312 | uint8_t reg, reg2; |
2f6e2404 JK |
313 | int ret = 0; |
314 | ||
315 | switch (ctrl->id) { | |
316 | case V4L2_CID_AUTOGAIN: | |
afd9690c HV |
317 | ret = ov6650_reg_read(client, REG_GAIN, ®); |
318 | if (!ret) | |
319 | priv->gain->val = reg; | |
320 | return ret; | |
2f6e2404 | 321 | case V4L2_CID_AUTO_WHITE_BALANCE: |
afd9690c HV |
322 | ret = ov6650_reg_read(client, REG_BLUE, ®); |
323 | if (!ret) | |
324 | ret = ov6650_reg_read(client, REG_RED, ®2); | |
325 | if (!ret) { | |
326 | priv->blue->val = reg; | |
327 | priv->red->val = reg2; | |
2f6e2404 | 328 | } |
afd9690c | 329 | return ret; |
2f6e2404 | 330 | case V4L2_CID_EXPOSURE_AUTO: |
afd9690c HV |
331 | ret = ov6650_reg_read(client, REG_AECH, ®); |
332 | if (!ret) | |
333 | priv->exposure->val = reg; | |
334 | return ret; | |
2f6e2404 | 335 | } |
afd9690c | 336 | return -EINVAL; |
2f6e2404 JK |
337 | } |
338 | ||
339 | /* Set status of additional camera capabilities */ | |
afd9690c | 340 | static int ov6550_s_ctrl(struct v4l2_ctrl *ctrl) |
2f6e2404 | 341 | { |
afd9690c HV |
342 | struct ov6650 *priv = container_of(ctrl->handler, struct ov6650, hdl); |
343 | struct v4l2_subdev *sd = &priv->subdev; | |
2f6e2404 | 344 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
2f6e2404 JK |
345 | int ret = 0; |
346 | ||
347 | switch (ctrl->id) { | |
348 | case V4L2_CID_AUTOGAIN: | |
349 | ret = ov6650_reg_rmw(client, REG_COMB, | |
afd9690c HV |
350 | ctrl->val ? COMB_AGC : 0, COMB_AGC); |
351 | if (!ret && !ctrl->val) | |
352 | ret = ov6650_reg_write(client, REG_GAIN, priv->gain->val); | |
353 | return ret; | |
2f6e2404 JK |
354 | case V4L2_CID_AUTO_WHITE_BALANCE: |
355 | ret = ov6650_reg_rmw(client, REG_COMB, | |
afd9690c HV |
356 | ctrl->val ? COMB_AWB : 0, COMB_AWB); |
357 | if (!ret && !ctrl->val) { | |
358 | ret = ov6650_reg_write(client, REG_BLUE, priv->blue->val); | |
359 | if (!ret) | |
360 | ret = ov6650_reg_write(client, REG_RED, | |
361 | priv->red->val); | |
362 | } | |
363 | return ret; | |
2f6e2404 | 364 | case V4L2_CID_SATURATION: |
afd9690c | 365 | return ov6650_reg_rmw(client, REG_SAT, SET_SAT(ctrl->val), |
2f6e2404 | 366 | SAT_MASK); |
2f6e2404 | 367 | case V4L2_CID_HUE: |
afd9690c | 368 | return ov6650_reg_rmw(client, REG_HUE, SET_HUE(ctrl->val), |
2f6e2404 | 369 | HUE_MASK); |
2f6e2404 | 370 | case V4L2_CID_BRIGHTNESS: |
afd9690c | 371 | return ov6650_reg_write(client, REG_BRT, ctrl->val); |
2f6e2404 | 372 | case V4L2_CID_EXPOSURE_AUTO: |
afd9690c | 373 | if (ctrl->val == V4L2_EXPOSURE_AUTO) |
2f6e2404 | 374 | ret = ov6650_reg_rmw(client, REG_COMB, COMB_AEC, 0); |
afd9690c | 375 | else |
2f6e2404 | 376 | ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AEC); |
afd9690c HV |
377 | if (!ret && ctrl->val == V4L2_EXPOSURE_MANUAL) |
378 | ret = ov6650_reg_write(client, REG_AECH, | |
379 | priv->exposure->val); | |
380 | return ret; | |
2f6e2404 | 381 | case V4L2_CID_GAMMA: |
afd9690c | 382 | return ov6650_reg_write(client, REG_GAM1, ctrl->val); |
2f6e2404 | 383 | case V4L2_CID_VFLIP: |
afd9690c HV |
384 | return ov6650_reg_rmw(client, REG_COMB, |
385 | ctrl->val ? COMB_FLIP_V : 0, COMB_FLIP_V); | |
2f6e2404 | 386 | case V4L2_CID_HFLIP: |
afd9690c HV |
387 | return ov6650_reg_rmw(client, REG_COMB, |
388 | ctrl->val ? COMB_FLIP_H : 0, COMB_FLIP_H); | |
2f6e2404 JK |
389 | } |
390 | ||
afd9690c | 391 | return -EINVAL; |
2f6e2404 JK |
392 | } |
393 | ||
394 | /* Get chip identification */ | |
395 | static int ov6650_g_chip_ident(struct v4l2_subdev *sd, | |
396 | struct v4l2_dbg_chip_ident *id) | |
397 | { | |
398 | id->ident = V4L2_IDENT_OV6650; | |
399 | id->revision = 0; | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
404 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
405 | static int ov6650_get_register(struct v4l2_subdev *sd, | |
406 | struct v4l2_dbg_register *reg) | |
407 | { | |
408 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
409 | int ret; | |
410 | u8 val; | |
411 | ||
412 | if (reg->reg & ~0xff) | |
413 | return -EINVAL; | |
414 | ||
415 | reg->size = 1; | |
416 | ||
417 | ret = ov6650_reg_read(client, reg->reg, &val); | |
418 | if (!ret) | |
419 | reg->val = (__u64)val; | |
420 | ||
421 | return ret; | |
422 | } | |
423 | ||
424 | static int ov6650_set_register(struct v4l2_subdev *sd, | |
425 | struct v4l2_dbg_register *reg) | |
426 | { | |
427 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
428 | ||
429 | if (reg->reg & ~0xff || reg->val & ~0xff) | |
430 | return -EINVAL; | |
431 | ||
432 | return ov6650_reg_write(client, reg->reg, reg->val); | |
433 | } | |
434 | #endif | |
435 | ||
436 | static int ov6650_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) | |
437 | { | |
438 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
439 | struct ov6650 *priv = to_ov6650(client); | |
440 | ||
441 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
442 | a->c = priv->rect; | |
443 | ||
444 | return 0; | |
445 | } | |
446 | ||
447 | static int ov6650_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) | |
448 | { | |
449 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
450 | struct ov6650 *priv = to_ov6650(client); | |
451 | struct v4l2_rect *rect = &a->c; | |
452 | int ret; | |
453 | ||
454 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
455 | return -EINVAL; | |
456 | ||
457 | rect->left = ALIGN(rect->left, 2); | |
458 | rect->width = ALIGN(rect->width, 2); | |
459 | rect->top = ALIGN(rect->top, 2); | |
460 | rect->height = ALIGN(rect->height, 2); | |
461 | soc_camera_limit_side(&rect->left, &rect->width, | |
462 | DEF_HSTRT << 1, 2, W_CIF); | |
463 | soc_camera_limit_side(&rect->top, &rect->height, | |
464 | DEF_VSTRT << 1, 2, H_CIF); | |
465 | ||
466 | ret = ov6650_reg_write(client, REG_HSTRT, rect->left >> 1); | |
467 | if (!ret) { | |
468 | priv->rect.left = rect->left; | |
469 | ret = ov6650_reg_write(client, REG_HSTOP, | |
470 | (rect->left + rect->width) >> 1); | |
471 | } | |
472 | if (!ret) { | |
473 | priv->rect.width = rect->width; | |
474 | ret = ov6650_reg_write(client, REG_VSTRT, rect->top >> 1); | |
475 | } | |
476 | if (!ret) { | |
477 | priv->rect.top = rect->top; | |
478 | ret = ov6650_reg_write(client, REG_VSTOP, | |
479 | (rect->top + rect->height) >> 1); | |
480 | } | |
481 | if (!ret) | |
482 | priv->rect.height = rect->height; | |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
487 | static int ov6650_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) | |
488 | { | |
489 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
490 | return -EINVAL; | |
491 | ||
492 | a->bounds.left = DEF_HSTRT << 1; | |
493 | a->bounds.top = DEF_VSTRT << 1; | |
494 | a->bounds.width = W_CIF; | |
495 | a->bounds.height = H_CIF; | |
496 | a->defrect = a->bounds; | |
497 | a->pixelaspect.numerator = 1; | |
498 | a->pixelaspect.denominator = 1; | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
503 | static int ov6650_g_fmt(struct v4l2_subdev *sd, | |
504 | struct v4l2_mbus_framefmt *mf) | |
505 | { | |
506 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
507 | struct ov6650 *priv = to_ov6650(client); | |
508 | ||
509 | mf->width = priv->rect.width >> priv->half_scale; | |
510 | mf->height = priv->rect.height >> priv->half_scale; | |
511 | mf->code = priv->code; | |
512 | mf->colorspace = priv->colorspace; | |
513 | mf->field = V4L2_FIELD_NONE; | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
518 | static bool is_unscaled_ok(int width, int height, struct v4l2_rect *rect) | |
519 | { | |
d889eb1e | 520 | return width > rect->width >> 1 || height > rect->height >> 1; |
2f6e2404 JK |
521 | } |
522 | ||
523 | static u8 to_clkrc(struct v4l2_fract *timeperframe, | |
524 | unsigned long pclk_limit, unsigned long pclk_max) | |
525 | { | |
526 | unsigned long pclk; | |
527 | ||
528 | if (timeperframe->numerator && timeperframe->denominator) | |
529 | pclk = pclk_max * timeperframe->denominator / | |
530 | (FRAME_RATE_MAX * timeperframe->numerator); | |
531 | else | |
532 | pclk = pclk_max; | |
533 | ||
534 | if (pclk_limit && pclk_limit < pclk) | |
535 | pclk = pclk_limit; | |
536 | ||
537 | return (pclk_max - 1) / pclk; | |
538 | } | |
539 | ||
540 | /* set the format we will capture in */ | |
541 | static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) | |
542 | { | |
543 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
544 | struct soc_camera_device *icd = client->dev.platform_data; | |
545 | struct soc_camera_sense *sense = icd->sense; | |
546 | struct ov6650 *priv = to_ov6650(client); | |
547 | bool half_scale = !is_unscaled_ok(mf->width, mf->height, &priv->rect); | |
548 | struct v4l2_crop a = { | |
549 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
550 | .c = { | |
551 | .left = priv->rect.left + (priv->rect.width >> 1) - | |
552 | (mf->width >> (1 - half_scale)), | |
553 | .top = priv->rect.top + (priv->rect.height >> 1) - | |
554 | (mf->height >> (1 - half_scale)), | |
555 | .width = mf->width << half_scale, | |
556 | .height = mf->height << half_scale, | |
557 | }, | |
558 | }; | |
559 | enum v4l2_mbus_pixelcode code = mf->code; | |
560 | unsigned long mclk, pclk; | |
561 | u8 coma_set = 0, coma_mask = 0, coml_set, coml_mask, clkrc; | |
562 | int ret; | |
563 | ||
564 | /* select color matrix configuration for given color encoding */ | |
565 | switch (code) { | |
07670433 | 566 | case V4L2_MBUS_FMT_Y8_1X8: |
2f6e2404 JK |
567 | dev_dbg(&client->dev, "pixel format GREY8_1X8\n"); |
568 | coma_mask |= COMA_RGB | COMA_WORD_SWAP | COMA_BYTE_SWAP; | |
569 | coma_set |= COMA_BW; | |
570 | break; | |
571 | case V4L2_MBUS_FMT_YUYV8_2X8: | |
572 | dev_dbg(&client->dev, "pixel format YUYV8_2X8_LE\n"); | |
573 | coma_mask |= COMA_RGB | COMA_BW | COMA_BYTE_SWAP; | |
574 | coma_set |= COMA_WORD_SWAP; | |
575 | break; | |
576 | case V4L2_MBUS_FMT_YVYU8_2X8: | |
577 | dev_dbg(&client->dev, "pixel format YVYU8_2X8_LE (untested)\n"); | |
578 | coma_mask |= COMA_RGB | COMA_BW | COMA_WORD_SWAP | | |
579 | COMA_BYTE_SWAP; | |
580 | break; | |
581 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
582 | dev_dbg(&client->dev, "pixel format YUYV8_2X8_BE\n"); | |
583 | if (half_scale) { | |
584 | coma_mask |= COMA_RGB | COMA_BW | COMA_WORD_SWAP; | |
585 | coma_set |= COMA_BYTE_SWAP; | |
586 | } else { | |
587 | coma_mask |= COMA_RGB | COMA_BW; | |
588 | coma_set |= COMA_BYTE_SWAP | COMA_WORD_SWAP; | |
589 | } | |
590 | break; | |
591 | case V4L2_MBUS_FMT_VYUY8_2X8: | |
592 | dev_dbg(&client->dev, "pixel format YVYU8_2X8_BE (untested)\n"); | |
593 | if (half_scale) { | |
594 | coma_mask |= COMA_RGB | COMA_BW; | |
595 | coma_set |= COMA_BYTE_SWAP | COMA_WORD_SWAP; | |
596 | } else { | |
597 | coma_mask |= COMA_RGB | COMA_BW | COMA_WORD_SWAP; | |
598 | coma_set |= COMA_BYTE_SWAP; | |
599 | } | |
600 | break; | |
601 | case V4L2_MBUS_FMT_SBGGR8_1X8: | |
602 | dev_dbg(&client->dev, "pixel format SBGGR8_1X8 (untested)\n"); | |
603 | coma_mask |= COMA_BW | COMA_BYTE_SWAP | COMA_WORD_SWAP; | |
604 | coma_set |= COMA_RAW_RGB | COMA_RGB; | |
605 | break; | |
2f6e2404 JK |
606 | default: |
607 | dev_err(&client->dev, "Pixel format not handled: 0x%x\n", code); | |
608 | return -EINVAL; | |
609 | } | |
610 | priv->code = code; | |
611 | ||
07670433 | 612 | if (code == V4L2_MBUS_FMT_Y8_1X8 || |
2f6e2404 JK |
613 | code == V4L2_MBUS_FMT_SBGGR8_1X8) { |
614 | coml_mask = COML_ONE_CHANNEL; | |
615 | coml_set = 0; | |
616 | priv->pclk_max = 4000000; | |
617 | } else { | |
618 | coml_mask = 0; | |
619 | coml_set = COML_ONE_CHANNEL; | |
620 | priv->pclk_max = 8000000; | |
621 | } | |
622 | ||
623 | if (code == V4L2_MBUS_FMT_SBGGR8_1X8) | |
624 | priv->colorspace = V4L2_COLORSPACE_SRGB; | |
625 | else if (code != 0) | |
626 | priv->colorspace = V4L2_COLORSPACE_JPEG; | |
627 | ||
628 | if (half_scale) { | |
629 | dev_dbg(&client->dev, "max resolution: QCIF\n"); | |
630 | coma_set |= COMA_QCIF; | |
631 | priv->pclk_max /= 2; | |
632 | } else { | |
633 | dev_dbg(&client->dev, "max resolution: CIF\n"); | |
634 | coma_mask |= COMA_QCIF; | |
635 | } | |
636 | priv->half_scale = half_scale; | |
637 | ||
638 | if (sense) { | |
639 | if (sense->master_clock == 8000000) { | |
640 | dev_dbg(&client->dev, "8MHz input clock\n"); | |
641 | clkrc = CLKRC_6MHz; | |
642 | } else if (sense->master_clock == 12000000) { | |
643 | dev_dbg(&client->dev, "12MHz input clock\n"); | |
644 | clkrc = CLKRC_12MHz; | |
645 | } else if (sense->master_clock == 16000000) { | |
646 | dev_dbg(&client->dev, "16MHz input clock\n"); | |
647 | clkrc = CLKRC_16MHz; | |
648 | } else if (sense->master_clock == 24000000) { | |
649 | dev_dbg(&client->dev, "24MHz input clock\n"); | |
650 | clkrc = CLKRC_24MHz; | |
651 | } else { | |
652 | dev_err(&client->dev, | |
653 | "unspported input clock, check platform data\n"); | |
654 | return -EINVAL; | |
655 | } | |
656 | mclk = sense->master_clock; | |
657 | priv->pclk_limit = sense->pixel_clock_max; | |
658 | } else { | |
659 | clkrc = CLKRC_24MHz; | |
660 | mclk = 24000000; | |
661 | priv->pclk_limit = 0; | |
662 | dev_dbg(&client->dev, "using default 24MHz input clock\n"); | |
663 | } | |
664 | ||
665 | clkrc |= to_clkrc(&priv->tpf, priv->pclk_limit, priv->pclk_max); | |
666 | ||
667 | pclk = priv->pclk_max / GET_CLKRC_DIV(clkrc); | |
668 | dev_dbg(&client->dev, "pixel clock divider: %ld.%ld\n", | |
669 | mclk / pclk, 10 * mclk % pclk / pclk); | |
670 | ||
671 | ret = ov6650_s_crop(sd, &a); | |
672 | if (!ret) | |
673 | ret = ov6650_reg_rmw(client, REG_COMA, coma_set, coma_mask); | |
674 | if (!ret) | |
675 | ret = ov6650_reg_write(client, REG_CLKRC, clkrc); | |
676 | if (!ret) | |
677 | ret = ov6650_reg_rmw(client, REG_COML, coml_set, coml_mask); | |
678 | ||
679 | if (!ret) { | |
680 | mf->colorspace = priv->colorspace; | |
681 | mf->width = priv->rect.width >> half_scale; | |
682 | mf->height = priv->rect.height >> half_scale; | |
683 | } | |
684 | ||
685 | return ret; | |
686 | } | |
687 | ||
688 | static int ov6650_try_fmt(struct v4l2_subdev *sd, | |
689 | struct v4l2_mbus_framefmt *mf) | |
690 | { | |
691 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
692 | struct ov6650 *priv = to_ov6650(client); | |
693 | ||
694 | if (is_unscaled_ok(mf->width, mf->height, &priv->rect)) | |
695 | v4l_bound_align_image(&mf->width, 2, W_CIF, 1, | |
696 | &mf->height, 2, H_CIF, 1, 0); | |
697 | ||
698 | mf->field = V4L2_FIELD_NONE; | |
699 | ||
700 | switch (mf->code) { | |
701 | case V4L2_MBUS_FMT_Y10_1X10: | |
07670433 LP |
702 | mf->code = V4L2_MBUS_FMT_Y8_1X8; |
703 | case V4L2_MBUS_FMT_Y8_1X8: | |
2f6e2404 JK |
704 | case V4L2_MBUS_FMT_YVYU8_2X8: |
705 | case V4L2_MBUS_FMT_YUYV8_2X8: | |
706 | case V4L2_MBUS_FMT_VYUY8_2X8: | |
707 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
708 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
709 | break; | |
710 | default: | |
711 | mf->code = V4L2_MBUS_FMT_SBGGR8_1X8; | |
712 | case V4L2_MBUS_FMT_SBGGR8_1X8: | |
713 | mf->colorspace = V4L2_COLORSPACE_SRGB; | |
714 | break; | |
715 | } | |
716 | ||
717 | return 0; | |
718 | } | |
719 | ||
720 | static int ov6650_enum_fmt(struct v4l2_subdev *sd, unsigned int index, | |
721 | enum v4l2_mbus_pixelcode *code) | |
722 | { | |
723 | if (index >= ARRAY_SIZE(ov6650_codes)) | |
724 | return -EINVAL; | |
725 | ||
726 | *code = ov6650_codes[index]; | |
727 | return 0; | |
728 | } | |
729 | ||
730 | static int ov6650_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) | |
731 | { | |
732 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
733 | struct ov6650 *priv = to_ov6650(client); | |
734 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
735 | ||
736 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
737 | return -EINVAL; | |
738 | ||
739 | memset(cp, 0, sizeof(*cp)); | |
740 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
741 | cp->timeperframe.numerator = GET_CLKRC_DIV(to_clkrc(&priv->tpf, | |
742 | priv->pclk_limit, priv->pclk_max)); | |
743 | cp->timeperframe.denominator = FRAME_RATE_MAX; | |
744 | ||
745 | dev_dbg(&client->dev, "Frame interval: %u/%u s\n", | |
746 | cp->timeperframe.numerator, cp->timeperframe.denominator); | |
747 | ||
748 | return 0; | |
749 | } | |
750 | ||
751 | static int ov6650_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) | |
752 | { | |
753 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
754 | struct ov6650 *priv = to_ov6650(client); | |
755 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
756 | struct v4l2_fract *tpf = &cp->timeperframe; | |
757 | int div, ret; | |
758 | u8 clkrc; | |
759 | ||
760 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
761 | return -EINVAL; | |
762 | ||
763 | if (cp->extendedmode != 0) | |
764 | return -EINVAL; | |
765 | ||
766 | if (tpf->numerator == 0 || tpf->denominator == 0) | |
767 | div = 1; /* Reset to full rate */ | |
768 | else | |
769 | div = (tpf->numerator * FRAME_RATE_MAX) / tpf->denominator; | |
770 | ||
771 | if (div == 0) | |
772 | div = 1; | |
773 | else if (div > GET_CLKRC_DIV(CLKRC_DIV_MASK)) | |
774 | div = GET_CLKRC_DIV(CLKRC_DIV_MASK); | |
775 | ||
776 | /* | |
777 | * Keep result to be used as tpf limit | |
778 | * for subseqent clock divider calculations | |
779 | */ | |
780 | priv->tpf.numerator = div; | |
781 | priv->tpf.denominator = FRAME_RATE_MAX; | |
782 | ||
783 | clkrc = to_clkrc(&priv->tpf, priv->pclk_limit, priv->pclk_max); | |
784 | ||
785 | ret = ov6650_reg_rmw(client, REG_CLKRC, clkrc, CLKRC_DIV_MASK); | |
786 | if (!ret) { | |
787 | tpf->numerator = GET_CLKRC_DIV(clkrc); | |
788 | tpf->denominator = FRAME_RATE_MAX; | |
789 | } | |
790 | ||
791 | return ret; | |
792 | } | |
793 | ||
794 | /* Soft reset the camera. This has nothing to do with the RESET pin! */ | |
795 | static int ov6650_reset(struct i2c_client *client) | |
796 | { | |
797 | int ret; | |
798 | ||
799 | dev_dbg(&client->dev, "reset\n"); | |
800 | ||
801 | ret = ov6650_reg_rmw(client, REG_COMA, COMA_RESET, 0); | |
802 | if (ret) | |
803 | dev_err(&client->dev, | |
25985edc | 804 | "An error occurred while entering soft reset!\n"); |
2f6e2404 JK |
805 | |
806 | return ret; | |
807 | } | |
808 | ||
809 | /* program default register values */ | |
810 | static int ov6650_prog_dflt(struct i2c_client *client) | |
811 | { | |
812 | int ret; | |
813 | ||
814 | dev_dbg(&client->dev, "initializing\n"); | |
815 | ||
816 | ret = ov6650_reg_write(client, REG_COMA, 0); /* ~COMA_RESET */ | |
817 | if (!ret) | |
818 | ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_BAND_FILTER); | |
819 | ||
820 | return ret; | |
821 | } | |
822 | ||
823 | static int ov6650_video_probe(struct soc_camera_device *icd, | |
824 | struct i2c_client *client) | |
825 | { | |
826 | u8 pidh, pidl, midh, midl; | |
827 | int ret = 0; | |
828 | ||
829 | /* | |
830 | * check and show product ID and manufacturer ID | |
831 | */ | |
832 | ret = ov6650_reg_read(client, REG_PIDH, &pidh); | |
833 | if (!ret) | |
834 | ret = ov6650_reg_read(client, REG_PIDL, &pidl); | |
835 | if (!ret) | |
836 | ret = ov6650_reg_read(client, REG_MIDH, &midh); | |
837 | if (!ret) | |
838 | ret = ov6650_reg_read(client, REG_MIDL, &midl); | |
839 | ||
840 | if (ret) | |
841 | return ret; | |
842 | ||
843 | if ((pidh != OV6650_PIDH) || (pidl != OV6650_PIDL)) { | |
844 | dev_err(&client->dev, "Product ID error 0x%02x:0x%02x\n", | |
845 | pidh, pidl); | |
846 | return -ENODEV; | |
847 | } | |
848 | ||
849 | dev_info(&client->dev, | |
850 | "ov6650 Product ID 0x%02x:0x%02x Manufacturer ID 0x%02x:0x%02x\n", | |
851 | pidh, pidl, midh, midl); | |
852 | ||
853 | ret = ov6650_reset(client); | |
854 | if (!ret) | |
855 | ret = ov6650_prog_dflt(client); | |
856 | ||
857 | return ret; | |
858 | } | |
859 | ||
afd9690c HV |
860 | static const struct v4l2_ctrl_ops ov6550_ctrl_ops = { |
861 | .g_volatile_ctrl = ov6550_g_volatile_ctrl, | |
862 | .s_ctrl = ov6550_s_ctrl, | |
2f6e2404 JK |
863 | }; |
864 | ||
865 | static struct v4l2_subdev_core_ops ov6650_core_ops = { | |
2f6e2404 JK |
866 | .g_chip_ident = ov6650_g_chip_ident, |
867 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
868 | .g_register = ov6650_get_register, | |
869 | .s_register = ov6650_set_register, | |
870 | #endif | |
871 | }; | |
872 | ||
db669e79 | 873 | /* Request bus settings on camera side */ |
59ca25b7 GL |
874 | static int ov6650_g_mbus_config(struct v4l2_subdev *sd, |
875 | struct v4l2_mbus_config *cfg) | |
876 | { | |
877 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
878 | struct soc_camera_device *icd = client->dev.platform_data; | |
879 | struct soc_camera_link *icl = to_soc_camera_link(icd); | |
880 | ||
881 | cfg->flags = V4L2_MBUS_MASTER | | |
882 | V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | | |
883 | V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW | | |
884 | V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | | |
885 | V4L2_MBUS_DATA_ACTIVE_HIGH; | |
886 | cfg->type = V4L2_MBUS_PARALLEL; | |
887 | cfg->flags = soc_camera_apply_board_flags(icl, cfg); | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
db669e79 | 892 | /* Alter bus settings on camera side */ |
59ca25b7 GL |
893 | static int ov6650_s_mbus_config(struct v4l2_subdev *sd, |
894 | const struct v4l2_mbus_config *cfg) | |
895 | { | |
896 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
897 | struct soc_camera_device *icd = client->dev.platform_data; | |
898 | struct soc_camera_link *icl = to_soc_camera_link(icd); | |
899 | unsigned long flags = soc_camera_apply_board_flags(icl, cfg); | |
900 | int ret; | |
901 | ||
902 | if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) | |
903 | ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_PCLK_RISING, 0); | |
904 | else | |
905 | ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_PCLK_RISING); | |
906 | if (ret) | |
907 | return ret; | |
908 | ||
909 | if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) | |
910 | ret = ov6650_reg_rmw(client, REG_COMF, COMF_HREF_LOW, 0); | |
911 | else | |
912 | ret = ov6650_reg_rmw(client, REG_COMF, 0, COMF_HREF_LOW); | |
913 | if (ret) | |
914 | return ret; | |
915 | ||
916 | if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) | |
917 | ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_VSYNC_HIGH, 0); | |
918 | else | |
919 | ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_VSYNC_HIGH); | |
920 | ||
921 | return ret; | |
922 | } | |
923 | ||
2f6e2404 JK |
924 | static struct v4l2_subdev_video_ops ov6650_video_ops = { |
925 | .s_stream = ov6650_s_stream, | |
926 | .g_mbus_fmt = ov6650_g_fmt, | |
927 | .s_mbus_fmt = ov6650_s_fmt, | |
928 | .try_mbus_fmt = ov6650_try_fmt, | |
929 | .enum_mbus_fmt = ov6650_enum_fmt, | |
930 | .cropcap = ov6650_cropcap, | |
931 | .g_crop = ov6650_g_crop, | |
932 | .s_crop = ov6650_s_crop, | |
933 | .g_parm = ov6650_g_parm, | |
934 | .s_parm = ov6650_s_parm, | |
59ca25b7 GL |
935 | .g_mbus_config = ov6650_g_mbus_config, |
936 | .s_mbus_config = ov6650_s_mbus_config, | |
2f6e2404 JK |
937 | }; |
938 | ||
939 | static struct v4l2_subdev_ops ov6650_subdev_ops = { | |
940 | .core = &ov6650_core_ops, | |
941 | .video = &ov6650_video_ops, | |
942 | }; | |
943 | ||
944 | /* | |
945 | * i2c_driver function | |
946 | */ | |
947 | static int ov6650_probe(struct i2c_client *client, | |
948 | const struct i2c_device_id *did) | |
949 | { | |
950 | struct ov6650 *priv; | |
951 | struct soc_camera_device *icd = client->dev.platform_data; | |
952 | struct soc_camera_link *icl; | |
953 | int ret; | |
954 | ||
955 | if (!icd) { | |
956 | dev_err(&client->dev, "Missing soc-camera data!\n"); | |
957 | return -EINVAL; | |
958 | } | |
959 | ||
960 | icl = to_soc_camera_link(icd); | |
961 | if (!icl) { | |
962 | dev_err(&client->dev, "Missing platform_data for driver\n"); | |
963 | return -EINVAL; | |
964 | } | |
965 | ||
966 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
967 | if (!priv) { | |
968 | dev_err(&client->dev, | |
969 | "Failed to allocate memory for private data!\n"); | |
970 | return -ENOMEM; | |
971 | } | |
972 | ||
973 | v4l2_i2c_subdev_init(&priv->subdev, client, &ov6650_subdev_ops); | |
afd9690c HV |
974 | v4l2_ctrl_handler_init(&priv->hdl, 13); |
975 | v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
976 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
977 | v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
978 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
979 | priv->autogain = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
980 | V4L2_CID_AUTOGAIN, 0, 1, 1, 1); | |
981 | priv->gain = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
982 | V4L2_CID_GAIN, 0, 0x3f, 1, DEF_GAIN); | |
983 | priv->autowb = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
984 | V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); | |
985 | priv->blue = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
986 | V4L2_CID_BLUE_BALANCE, 0, 0xff, 1, DEF_BLUE); | |
987 | priv->red = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
988 | V4L2_CID_RED_BALANCE, 0, 0xff, 1, DEF_RED); | |
989 | v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
990 | V4L2_CID_SATURATION, 0, 0xf, 1, 0x8); | |
991 | v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
992 | V4L2_CID_HUE, 0, HUE_MASK, 1, DEF_HUE); | |
993 | v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
994 | V4L2_CID_BRIGHTNESS, 0, 0xff, 1, 0x80); | |
995 | priv->autoexposure = v4l2_ctrl_new_std_menu(&priv->hdl, | |
996 | &ov6550_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0, | |
997 | V4L2_EXPOSURE_AUTO); | |
998 | priv->exposure = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
999 | V4L2_CID_EXPOSURE, 0, 0xff, 1, DEF_AECH); | |
1000 | v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops, | |
1001 | V4L2_CID_GAMMA, 0, 0xff, 1, 0x12); | |
1002 | ||
1003 | priv->subdev.ctrl_handler = &priv->hdl; | |
1004 | if (priv->hdl.error) { | |
1005 | int err = priv->hdl.error; | |
2f6e2404 | 1006 | |
afd9690c HV |
1007 | kfree(priv); |
1008 | return err; | |
1009 | } | |
1010 | v4l2_ctrl_auto_cluster(2, &priv->autogain, 0, true); | |
1011 | v4l2_ctrl_auto_cluster(3, &priv->autowb, 0, true); | |
1012 | v4l2_ctrl_auto_cluster(2, &priv->autoexposure, | |
1013 | V4L2_EXPOSURE_MANUAL, true); | |
2f6e2404 JK |
1014 | |
1015 | priv->rect.left = DEF_HSTRT << 1; | |
1016 | priv->rect.top = DEF_VSTRT << 1; | |
1017 | priv->rect.width = W_CIF; | |
1018 | priv->rect.height = H_CIF; | |
1019 | priv->half_scale = false; | |
1020 | priv->code = V4L2_MBUS_FMT_YUYV8_2X8; | |
1021 | priv->colorspace = V4L2_COLORSPACE_JPEG; | |
1022 | ||
1023 | ret = ov6650_video_probe(icd, client); | |
afd9690c HV |
1024 | if (!ret) |
1025 | ret = v4l2_ctrl_handler_setup(&priv->hdl); | |
2f6e2404 JK |
1026 | |
1027 | if (ret) { | |
afd9690c | 1028 | v4l2_ctrl_handler_free(&priv->hdl); |
2f6e2404 JK |
1029 | kfree(priv); |
1030 | } | |
1031 | ||
1032 | return ret; | |
1033 | } | |
1034 | ||
1035 | static int ov6650_remove(struct i2c_client *client) | |
1036 | { | |
1037 | struct ov6650 *priv = to_ov6650(client); | |
1038 | ||
afd9690c HV |
1039 | v4l2_device_unregister_subdev(&priv->subdev); |
1040 | v4l2_ctrl_handler_free(&priv->hdl); | |
2f6e2404 JK |
1041 | kfree(priv); |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | static const struct i2c_device_id ov6650_id[] = { | |
1046 | { "ov6650", 0 }, | |
1047 | { } | |
1048 | }; | |
1049 | MODULE_DEVICE_TABLE(i2c, ov6650_id); | |
1050 | ||
1051 | static struct i2c_driver ov6650_i2c_driver = { | |
1052 | .driver = { | |
1053 | .name = "ov6650", | |
1054 | }, | |
1055 | .probe = ov6650_probe, | |
1056 | .remove = ov6650_remove, | |
1057 | .id_table = ov6650_id, | |
1058 | }; | |
1059 | ||
1060 | static int __init ov6650_module_init(void) | |
1061 | { | |
1062 | return i2c_add_driver(&ov6650_i2c_driver); | |
1063 | } | |
1064 | ||
1065 | static void __exit ov6650_module_exit(void) | |
1066 | { | |
1067 | i2c_del_driver(&ov6650_i2c_driver); | |
1068 | } | |
1069 | ||
1070 | module_init(ov6650_module_init); | |
1071 | module_exit(ov6650_module_exit); | |
1072 | ||
1073 | MODULE_DESCRIPTION("SoC Camera driver for OmniVision OV6650"); | |
1074 | MODULE_AUTHOR("Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>"); | |
1075 | MODULE_LICENSE("GPL v2"); |