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Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001/*
2 * ov772x Camera Driver
3 *
4 * Copyright (C) 2008 Renesas Solutions Corp.
5 * Kuninori Morimoto <morimoto.kuninori@renesas.com>
6 *
7 * Based on ov7670 and soc_camera_platform driver,
8 *
9 * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net>
10 * Copyright (C) 2008 Magnus Damm
11 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16 */
17
18#include <linux/init.h>
19#include <linux/module.h>
20#include <linux/i2c.h>
21#include <linux/slab.h>
22#include <linux/delay.h>
23#include <linux/videodev2.h>
24#include <media/v4l2-chip-ident.h>
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -030025#include <media/v4l2-subdev.h>
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -030026#include <media/soc_camera.h>
27#include <media/ov772x.h>
28
29/*
30 * register offset
31 */
32#define GAIN 0x00 /* AGC - Gain control gain setting */
33#define BLUE 0x01 /* AWB - Blue channel gain setting */
34#define RED 0x02 /* AWB - Red channel gain setting */
35#define GREEN 0x03 /* AWB - Green channel gain setting */
36#define COM1 0x04 /* Common control 1 */
37#define BAVG 0x05 /* U/B Average Level */
38#define GAVG 0x06 /* Y/Gb Average Level */
39#define RAVG 0x07 /* V/R Average Level */
40#define AECH 0x08 /* Exposure Value - AEC MSBs */
41#define COM2 0x09 /* Common control 2 */
42#define PID 0x0A /* Product ID Number MSB */
43#define VER 0x0B /* Product ID Number LSB */
44#define COM3 0x0C /* Common control 3 */
45#define COM4 0x0D /* Common control 4 */
46#define COM5 0x0E /* Common control 5 */
47#define COM6 0x0F /* Common control 6 */
48#define AEC 0x10 /* Exposure Value */
49#define CLKRC 0x11 /* Internal clock */
50#define COM7 0x12 /* Common control 7 */
51#define COM8 0x13 /* Common control 8 */
52#define COM9 0x14 /* Common control 9 */
53#define COM10 0x15 /* Common control 10 */
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -030054#define REG16 0x16 /* Register 16 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -030055#define HSTART 0x17 /* Horizontal sensor size */
56#define HSIZE 0x18 /* Horizontal frame (HREF column) end high 8-bit */
57#define VSTART 0x19 /* Vertical frame (row) start high 8-bit */
58#define VSIZE 0x1A /* Vertical sensor size */
59#define PSHFT 0x1B /* Data format - pixel delay select */
60#define MIDH 0x1C /* Manufacturer ID byte - high */
61#define MIDL 0x1D /* Manufacturer ID byte - low */
62#define LAEC 0x1F /* Fine AEC value */
63#define COM11 0x20 /* Common control 11 */
64#define BDBASE 0x22 /* Banding filter Minimum AEC value */
65#define DBSTEP 0x23 /* Banding filter Maximum Setp */
66#define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */
67#define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */
68#define VPT 0x26 /* AGC/AEC Fast mode operating region */
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -030069#define REG28 0x28 /* Register 28 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -030070#define HOUTSIZE 0x29 /* Horizontal data output size MSBs */
71#define EXHCH 0x2A /* Dummy pixel insert MSB */
72#define EXHCL 0x2B /* Dummy pixel insert LSB */
73#define VOUTSIZE 0x2C /* Vertical data output size MSBs */
74#define ADVFL 0x2D /* LSB of insert dummy lines in Vertical direction */
75#define ADVFH 0x2E /* MSG of insert dummy lines in Vertical direction */
76#define YAVE 0x2F /* Y/G Channel Average value */
77#define LUMHTH 0x30 /* Histogram AEC/AGC Luminance high level threshold */
78#define LUMLTH 0x31 /* Histogram AEC/AGC Luminance low level threshold */
79#define HREF 0x32 /* Image start and size control */
80#define DM_LNL 0x33 /* Dummy line low 8 bits */
81#define DM_LNH 0x34 /* Dummy line high 8 bits */
82#define ADOFF_B 0x35 /* AD offset compensation value for B channel */
83#define ADOFF_R 0x36 /* AD offset compensation value for R channel */
84#define ADOFF_GB 0x37 /* AD offset compensation value for Gb channel */
85#define ADOFF_GR 0x38 /* AD offset compensation value for Gr channel */
86#define OFF_B 0x39 /* Analog process B channel offset value */
87#define OFF_R 0x3A /* Analog process R channel offset value */
88#define OFF_GB 0x3B /* Analog process Gb channel offset value */
89#define OFF_GR 0x3C /* Analog process Gr channel offset value */
90#define COM12 0x3D /* Common control 12 */
91#define COM13 0x3E /* Common control 13 */
92#define COM14 0x3F /* Common control 14 */
93#define COM15 0x40 /* Common control 15*/
94#define COM16 0x41 /* Common control 16 */
95#define TGT_B 0x42 /* BLC blue channel target value */
96#define TGT_R 0x43 /* BLC red channel target value */
97#define TGT_GB 0x44 /* BLC Gb channel target value */
98#define TGT_GR 0x45 /* BLC Gr channel target value */
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -030099/* for ov7720 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300100#define LCC0 0x46 /* Lens correction control 0 */
101#define LCC1 0x47 /* Lens correction option 1 - X coordinate */
102#define LCC2 0x48 /* Lens correction option 2 - Y coordinate */
103#define LCC3 0x49 /* Lens correction option 3 */
104#define LCC4 0x4A /* Lens correction option 4 - radius of the circular */
105#define LCC5 0x4B /* Lens correction option 5 */
106#define LCC6 0x4C /* Lens correction option 6 */
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -0300107/* for ov7725 */
108#define LC_CTR 0x46 /* Lens correction control */
109#define LC_XC 0x47 /* X coordinate of lens correction center relative */
110#define LC_YC 0x48 /* Y coordinate of lens correction center relative */
111#define LC_COEF 0x49 /* Lens correction coefficient */
112#define LC_RADI 0x4A /* Lens correction radius */
113#define LC_COEFB 0x4B /* Lens B channel compensation coefficient */
114#define LC_COEFR 0x4C /* Lens R channel compensation coefficient */
115
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300116#define FIXGAIN 0x4D /* Analog fix gain amplifer */
117#define AREF0 0x4E /* Sensor reference control */
118#define AREF1 0x4F /* Sensor reference current control */
119#define AREF2 0x50 /* Analog reference control */
120#define AREF3 0x51 /* ADC reference control */
121#define AREF4 0x52 /* ADC reference control */
122#define AREF5 0x53 /* ADC reference control */
123#define AREF6 0x54 /* Analog reference control */
124#define AREF7 0x55 /* Analog reference control */
125#define UFIX 0x60 /* U channel fixed value output */
126#define VFIX 0x61 /* V channel fixed value output */
Kuninori Morimotob3d7b2a2008-12-01 09:44:51 -0300127#define AWBB_BLK 0x62 /* AWB option for advanced AWB */
128#define AWB_CTRL0 0x63 /* AWB control byte 0 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300129#define DSP_CTRL1 0x64 /* DSP control byte 1 */
130#define DSP_CTRL2 0x65 /* DSP control byte 2 */
131#define DSP_CTRL3 0x66 /* DSP control byte 3 */
132#define DSP_CTRL4 0x67 /* DSP control byte 4 */
Kuninori Morimotob3d7b2a2008-12-01 09:44:51 -0300133#define AWB_BIAS 0x68 /* AWB BLC level clip */
134#define AWB_CTRL1 0x69 /* AWB control 1 */
135#define AWB_CTRL2 0x6A /* AWB control 2 */
136#define AWB_CTRL3 0x6B /* AWB control 3 */
137#define AWB_CTRL4 0x6C /* AWB control 4 */
138#define AWB_CTRL5 0x6D /* AWB control 5 */
139#define AWB_CTRL6 0x6E /* AWB control 6 */
140#define AWB_CTRL7 0x6F /* AWB control 7 */
141#define AWB_CTRL8 0x70 /* AWB control 8 */
142#define AWB_CTRL9 0x71 /* AWB control 9 */
143#define AWB_CTRL10 0x72 /* AWB control 10 */
144#define AWB_CTRL11 0x73 /* AWB control 11 */
145#define AWB_CTRL12 0x74 /* AWB control 12 */
146#define AWB_CTRL13 0x75 /* AWB control 13 */
147#define AWB_CTRL14 0x76 /* AWB control 14 */
148#define AWB_CTRL15 0x77 /* AWB control 15 */
149#define AWB_CTRL16 0x78 /* AWB control 16 */
150#define AWB_CTRL17 0x79 /* AWB control 17 */
151#define AWB_CTRL18 0x7A /* AWB control 18 */
152#define AWB_CTRL19 0x7B /* AWB control 19 */
153#define AWB_CTRL20 0x7C /* AWB control 20 */
154#define AWB_CTRL21 0x7D /* AWB control 21 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300155#define GAM1 0x7E /* Gamma Curve 1st segment input end point */
156#define GAM2 0x7F /* Gamma Curve 2nd segment input end point */
157#define GAM3 0x80 /* Gamma Curve 3rd segment input end point */
158#define GAM4 0x81 /* Gamma Curve 4th segment input end point */
159#define GAM5 0x82 /* Gamma Curve 5th segment input end point */
160#define GAM6 0x83 /* Gamma Curve 6th segment input end point */
161#define GAM7 0x84 /* Gamma Curve 7th segment input end point */
162#define GAM8 0x85 /* Gamma Curve 8th segment input end point */
163#define GAM9 0x86 /* Gamma Curve 9th segment input end point */
164#define GAM10 0x87 /* Gamma Curve 10th segment input end point */
165#define GAM11 0x88 /* Gamma Curve 11th segment input end point */
166#define GAM12 0x89 /* Gamma Curve 12th segment input end point */
167#define GAM13 0x8A /* Gamma Curve 13th segment input end point */
168#define GAM14 0x8B /* Gamma Curve 14th segment input end point */
169#define GAM15 0x8C /* Gamma Curve 15th segment input end point */
170#define SLOP 0x8D /* Gamma curve highest segment slope */
171#define DNSTH 0x8E /* De-noise threshold */
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300172#define EDGE_STRNGT 0x8F /* Edge strength control when manual mode */
173#define EDGE_TRSHLD 0x90 /* Edge threshold control when manual mode */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300174#define DNSOFF 0x91 /* Auto De-noise threshold control */
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300175#define EDGE_UPPER 0x92 /* Edge strength upper limit when Auto mode */
176#define EDGE_LOWER 0x93 /* Edge strength lower limit when Auto mode */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300177#define MTX1 0x94 /* Matrix coefficient 1 */
178#define MTX2 0x95 /* Matrix coefficient 2 */
179#define MTX3 0x96 /* Matrix coefficient 3 */
180#define MTX4 0x97 /* Matrix coefficient 4 */
181#define MTX5 0x98 /* Matrix coefficient 5 */
182#define MTX6 0x99 /* Matrix coefficient 6 */
183#define MTX_CTRL 0x9A /* Matrix control */
184#define BRIGHT 0x9B /* Brightness control */
185#define CNTRST 0x9C /* Contrast contrast */
186#define CNTRST_CTRL 0x9D /* Contrast contrast center */
187#define UVAD_J0 0x9E /* Auto UV adjust contrast 0 */
188#define UVAD_J1 0x9F /* Auto UV adjust contrast 1 */
189#define SCAL0 0xA0 /* Scaling control 0 */
190#define SCAL1 0xA1 /* Scaling control 1 */
191#define SCAL2 0xA2 /* Scaling control 2 */
192#define FIFODLYM 0xA3 /* FIFO manual mode delay control */
193#define FIFODLYA 0xA4 /* FIFO auto mode delay control */
194#define SDE 0xA6 /* Special digital effect control */
195#define USAT 0xA7 /* U component saturation control */
196#define VSAT 0xA8 /* V component saturation control */
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -0300197/* for ov7720 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300198#define HUE0 0xA9 /* Hue control 0 */
199#define HUE1 0xAA /* Hue control 1 */
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -0300200/* for ov7725 */
201#define HUECOS 0xA9 /* Cosine value */
202#define HUESIN 0xAA /* Sine value */
203
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300204#define SIGN 0xAB /* Sign bit for Hue and contrast */
205#define DSPAUTO 0xAC /* DSP auto function ON/OFF control */
206
207/*
208 * register detail
209 */
210
211/* COM2 */
212#define SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */
213 /* Output drive capability */
214#define OCAP_1x 0x00 /* 1x */
215#define OCAP_2x 0x01 /* 2x */
216#define OCAP_3x 0x02 /* 3x */
217#define OCAP_4x 0x03 /* 4x */
218
219/* COM3 */
Kuninori Morimoto05148912009-02-23 12:12:58 -0300220#define SWAP_MASK (SWAP_RGB | SWAP_YUV | SWAP_ML)
221#define IMG_MASK (VFLIP_IMG | HFLIP_IMG)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300222
Kuninori Morimoto05148912009-02-23 12:12:58 -0300223#define VFLIP_IMG 0x80 /* Vertical flip image ON/OFF selection */
224#define HFLIP_IMG 0x40 /* Horizontal mirror image ON/OFF selection */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300225#define SWAP_RGB 0x20 /* Swap B/R output sequence in RGB mode */
226#define SWAP_YUV 0x10 /* Swap Y/UV output sequence in YUV mode */
227#define SWAP_ML 0x08 /* Swap output MSB/LSB */
228 /* Tri-state option for output clock */
229#define NOTRI_CLOCK 0x04 /* 0: Tri-state at this period */
230 /* 1: No tri-state at this period */
231 /* Tri-state option for output data */
232#define NOTRI_DATA 0x02 /* 0: Tri-state at this period */
233 /* 1: No tri-state at this period */
234#define SCOLOR_TEST 0x01 /* Sensor color bar test pattern */
235
236/* COM4 */
237 /* PLL frequency control */
238#define PLL_BYPASS 0x00 /* 00: Bypass PLL */
239#define PLL_4x 0x40 /* 01: PLL 4x */
240#define PLL_6x 0x80 /* 10: PLL 6x */
241#define PLL_8x 0xc0 /* 11: PLL 8x */
242 /* AEC evaluate window */
243#define AEC_FULL 0x00 /* 00: Full window */
244#define AEC_1p2 0x10 /* 01: 1/2 window */
245#define AEC_1p4 0x20 /* 10: 1/4 window */
246#define AEC_2p3 0x30 /* 11: Low 2/3 window */
247
248/* COM5 */
249#define AFR_ON_OFF 0x80 /* Auto frame rate control ON/OFF selection */
250#define AFR_SPPED 0x40 /* Auto frame rate control speed slection */
251 /* Auto frame rate max rate control */
252#define AFR_NO_RATE 0x00 /* No reduction of frame rate */
253#define AFR_1p2 0x10 /* Max reduction to 1/2 frame rate */
254#define AFR_1p4 0x20 /* Max reduction to 1/4 frame rate */
255#define AFR_1p8 0x30 /* Max reduction to 1/8 frame rate */
256 /* Auto frame rate active point control */
257#define AF_2x 0x00 /* Add frame when AGC reaches 2x gain */
258#define AF_4x 0x04 /* Add frame when AGC reaches 4x gain */
259#define AF_8x 0x08 /* Add frame when AGC reaches 8x gain */
260#define AF_16x 0x0c /* Add frame when AGC reaches 16x gain */
261 /* AEC max step control */
262#define AEC_NO_LIMIT 0x01 /* 0 : AEC incease step has limit */
263 /* 1 : No limit to AEC increase step */
264
265/* COM7 */
266 /* SCCB Register Reset */
267#define SCCB_RESET 0x80 /* 0 : No change */
268 /* 1 : Resets all registers to default */
269 /* Resolution selection */
270#define SLCT_MASK 0x40 /* Mask of VGA or QVGA */
271#define SLCT_VGA 0x00 /* 0 : VGA */
272#define SLCT_QVGA 0x40 /* 1 : QVGA */
273#define ITU656_ON_OFF 0x20 /* ITU656 protocol ON/OFF selection */
274 /* RGB output format control */
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300275#define FMT_MASK 0x0c /* Mask of color format */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300276#define FMT_GBR422 0x00 /* 00 : GBR 4:2:2 */
277#define FMT_RGB565 0x04 /* 01 : RGB 565 */
278#define FMT_RGB555 0x08 /* 10 : RGB 555 */
279#define FMT_RGB444 0x0c /* 11 : RGB 444 */
280 /* Output format control */
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300281#define OFMT_MASK 0x03 /* Mask of output format */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300282#define OFMT_YUV 0x00 /* 00 : YUV */
283#define OFMT_P_BRAW 0x01 /* 01 : Processed Bayer RAW */
284#define OFMT_RGB 0x02 /* 10 : RGB */
285#define OFMT_BRAW 0x03 /* 11 : Bayer RAW */
286
287/* COM8 */
288#define FAST_ALGO 0x80 /* Enable fast AGC/AEC algorithm */
289 /* AEC Setp size limit */
290#define UNLMT_STEP 0x40 /* 0 : Step size is limited */
291 /* 1 : Unlimited step size */
292#define BNDF_ON_OFF 0x20 /* Banding filter ON/OFF */
293#define AEC_BND 0x10 /* Enable AEC below banding value */
294#define AEC_ON_OFF 0x08 /* Fine AEC ON/OFF control */
295#define AGC_ON 0x04 /* AGC Enable */
296#define AWB_ON 0x02 /* AWB Enable */
297#define AEC_ON 0x01 /* AEC Enable */
298
299/* COM9 */
300#define BASE_AECAGC 0x80 /* Histogram or average based AEC/AGC */
301 /* Automatic gain ceiling - maximum AGC value */
302#define GAIN_2x 0x00 /* 000 : 2x */
303#define GAIN_4x 0x10 /* 001 : 4x */
304#define GAIN_8x 0x20 /* 010 : 8x */
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300305#define GAIN_16x 0x30 /* 011 : 16x */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300306#define GAIN_32x 0x40 /* 100 : 32x */
307#define GAIN_64x 0x50 /* 101 : 64x */
308#define GAIN_128x 0x60 /* 110 : 128x */
309#define DROP_VSYNC 0x04 /* Drop VSYNC output of corrupt frame */
310#define DROP_HREF 0x02 /* Drop HREF output of corrupt frame */
311
312/* COM11 */
313#define SGLF_ON_OFF 0x02 /* Single frame ON/OFF selection */
314#define SGLF_TRIG 0x01 /* Single frame transfer trigger */
315
316/* EXHCH */
317#define VSIZE_LSB 0x04 /* Vertical data output size LSB */
318
319/* DSP_CTRL1 */
320#define FIFO_ON 0x80 /* FIFO enable/disable selection */
321#define UV_ON_OFF 0x40 /* UV adjust function ON/OFF selection */
322#define YUV444_2_422 0x20 /* YUV444 to 422 UV channel option selection */
323#define CLR_MTRX_ON_OFF 0x10 /* Color matrix ON/OFF selection */
324#define INTPLT_ON_OFF 0x08 /* Interpolation ON/OFF selection */
325#define GMM_ON_OFF 0x04 /* Gamma function ON/OFF selection */
326#define AUTO_BLK_ON_OFF 0x02 /* Black defect auto correction ON/OFF */
327#define AUTO_WHT_ON_OFF 0x01 /* White define auto correction ON/OFF */
328
329/* DSP_CTRL3 */
330#define UV_MASK 0x80 /* UV output sequence option */
331#define UV_ON 0x80 /* ON */
332#define UV_OFF 0x00 /* OFF */
333#define CBAR_MASK 0x20 /* DSP Color bar mask */
334#define CBAR_ON 0x20 /* ON */
335#define CBAR_OFF 0x00 /* OFF */
336
337/* HSTART */
338#define HST_VGA 0x23
339#define HST_QVGA 0x3F
340
341/* HSIZE */
342#define HSZ_VGA 0xA0
343#define HSZ_QVGA 0x50
344
345/* VSTART */
346#define VST_VGA 0x07
347#define VST_QVGA 0x03
348
349/* VSIZE */
350#define VSZ_VGA 0xF0
351#define VSZ_QVGA 0x78
352
353/* HOUTSIZE */
354#define HOSZ_VGA 0xA0
355#define HOSZ_QVGA 0x50
356
357/* VOUTSIZE */
358#define VOSZ_VGA 0xF0
359#define VOSZ_QVGA 0x78
360
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300361/* DSPAUTO (DSP Auto Function ON/OFF Control) */
362#define AWB_ACTRL 0x80 /* AWB auto threshold control */
363#define DENOISE_ACTRL 0x40 /* De-noise auto threshold control */
364#define EDGE_ACTRL 0x20 /* Edge enhancement auto strength control */
365#define UV_ACTRL 0x10 /* UV adjust auto slope control */
366#define SCAL0_ACTRL 0x08 /* Auto scaling factor control */
367#define SCAL1_2_ACTRL 0x04 /* Auto scaling factor control */
368
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300369/*
Kuninori Morimotoaeabc882008-12-18 11:05:49 -0300370 * ID
371 */
372#define OV7720 0x7720
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -0300373#define OV7725 0x7721
Kuninori Morimotoaeabc882008-12-18 11:05:49 -0300374#define VERSION(pid, ver) ((pid<<8)|(ver&0xFF))
375
376/*
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300377 * struct
378 */
379struct regval_list {
380 unsigned char reg_num;
381 unsigned char value;
382};
383
384struct ov772x_color_format {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300385 const struct soc_camera_data_format *format;
386 u8 dsp3;
387 u8 com3;
388 u8 com7;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300389};
390
391struct ov772x_win_size {
392 char *name;
393 __u32 width;
394 __u32 height;
395 unsigned char com7_bit;
396 const struct regval_list *regs;
397};
398
399struct ov772x_priv {
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300400 struct v4l2_subdev subdev;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300401 struct ov772x_camera_info *info;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300402 const struct ov772x_color_format *fmt;
403 const struct ov772x_win_size *win;
Kuninori Morimotoaeabc882008-12-18 11:05:49 -0300404 int model;
Guennadi Liakhovetskia813d012009-08-25 11:44:14 -0300405 unsigned short flag_vflip:1;
406 unsigned short flag_hflip:1;
Guennadi Liakhovetski96c75392009-08-25 11:53:23 -0300407 /* band_filter = COM8[5] ? 256 - BDBASE : 0 */
408 unsigned short band_filter;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300409};
410
411#define ENDMARKER { 0xff, 0xff }
412
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300413/*
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300414 * register setting for window size
415 */
416static const struct regval_list ov772x_qvga_regs[] = {
417 { HSTART, HST_QVGA },
418 { HSIZE, HSZ_QVGA },
419 { VSTART, VST_QVGA },
420 { VSIZE, VSZ_QVGA },
421 { HOUTSIZE, HOSZ_QVGA },
422 { VOUTSIZE, VOSZ_QVGA },
423 ENDMARKER,
424};
425
426static const struct regval_list ov772x_vga_regs[] = {
427 { HSTART, HST_VGA },
428 { HSIZE, HSZ_VGA },
429 { VSTART, VST_VGA },
430 { VSIZE, VSZ_VGA },
431 { HOUTSIZE, HOSZ_VGA },
432 { VOUTSIZE, VOSZ_VGA },
433 ENDMARKER,
434};
435
436/*
437 * supported format list
438 */
439
440#define SETFOURCC(type) .name = (#type), .fourcc = (V4L2_PIX_FMT_ ## type)
441static const struct soc_camera_data_format ov772x_fmt_lists[] = {
442 {
443 SETFOURCC(YUYV),
444 .depth = 16,
445 .colorspace = V4L2_COLORSPACE_JPEG,
446 },
447 {
448 SETFOURCC(YVYU),
449 .depth = 16,
450 .colorspace = V4L2_COLORSPACE_JPEG,
451 },
452 {
453 SETFOURCC(UYVY),
454 .depth = 16,
455 .colorspace = V4L2_COLORSPACE_JPEG,
456 },
457 {
458 SETFOURCC(RGB555),
459 .depth = 16,
460 .colorspace = V4L2_COLORSPACE_SRGB,
461 },
462 {
463 SETFOURCC(RGB555X),
464 .depth = 16,
465 .colorspace = V4L2_COLORSPACE_SRGB,
466 },
467 {
468 SETFOURCC(RGB565),
469 .depth = 16,
470 .colorspace = V4L2_COLORSPACE_SRGB,
471 },
472 {
473 SETFOURCC(RGB565X),
474 .depth = 16,
475 .colorspace = V4L2_COLORSPACE_SRGB,
476 },
477};
478
479/*
480 * color format list
481 */
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300482static const struct ov772x_color_format ov772x_cfmts[] = {
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300483 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300484 .format = &ov772x_fmt_lists[0],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300485 .dsp3 = 0x0,
486 .com3 = SWAP_YUV,
487 .com7 = OFMT_YUV,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300488 },
489 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300490 .format = &ov772x_fmt_lists[1],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300491 .dsp3 = UV_ON,
492 .com3 = SWAP_YUV,
493 .com7 = OFMT_YUV,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300494 },
495 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300496 .format = &ov772x_fmt_lists[2],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300497 .dsp3 = 0x0,
498 .com3 = 0x0,
499 .com7 = OFMT_YUV,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300500 },
501 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300502 .format = &ov772x_fmt_lists[3],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300503 .dsp3 = 0x0,
504 .com3 = SWAP_RGB,
505 .com7 = FMT_RGB555 | OFMT_RGB,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300506 },
507 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300508 .format = &ov772x_fmt_lists[4],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300509 .dsp3 = 0x0,
510 .com3 = 0x0,
511 .com7 = FMT_RGB555 | OFMT_RGB,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300512 },
513 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300514 .format = &ov772x_fmt_lists[5],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300515 .dsp3 = 0x0,
516 .com3 = SWAP_RGB,
517 .com7 = FMT_RGB565 | OFMT_RGB,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300518 },
519 {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300520 .format = &ov772x_fmt_lists[6],
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300521 .dsp3 = 0x0,
522 .com3 = 0x0,
523 .com7 = FMT_RGB565 | OFMT_RGB,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300524 },
525};
526
527
528/*
529 * window size list
530 */
531#define VGA_WIDTH 640
532#define VGA_HEIGHT 480
533#define QVGA_WIDTH 320
534#define QVGA_HEIGHT 240
535#define MAX_WIDTH VGA_WIDTH
536#define MAX_HEIGHT VGA_HEIGHT
537
538static const struct ov772x_win_size ov772x_win_vga = {
539 .name = "VGA",
540 .width = VGA_WIDTH,
541 .height = VGA_HEIGHT,
542 .com7_bit = SLCT_VGA,
543 .regs = ov772x_vga_regs,
544};
545
546static const struct ov772x_win_size ov772x_win_qvga = {
547 .name = "QVGA",
548 .width = QVGA_WIDTH,
549 .height = QVGA_HEIGHT,
550 .com7_bit = SLCT_QVGA,
551 .regs = ov772x_qvga_regs,
552};
553
Kuninori Morimoto05148912009-02-23 12:12:58 -0300554static const struct v4l2_queryctrl ov772x_controls[] = {
555 {
556 .id = V4L2_CID_VFLIP,
557 .type = V4L2_CTRL_TYPE_BOOLEAN,
558 .name = "Flip Vertically",
559 .minimum = 0,
560 .maximum = 1,
561 .step = 1,
562 .default_value = 0,
563 },
564 {
565 .id = V4L2_CID_HFLIP,
566 .type = V4L2_CTRL_TYPE_BOOLEAN,
567 .name = "Flip Horizontally",
568 .minimum = 0,
569 .maximum = 1,
570 .step = 1,
571 .default_value = 0,
572 },
Guennadi Liakhovetskia813d012009-08-25 11:44:14 -0300573 {
574 .id = V4L2_CID_BAND_STOP_FILTER,
575 .type = V4L2_CTRL_TYPE_INTEGER,
576 .name = "Band-stop filter",
577 .minimum = 0,
578 .maximum = 256,
579 .step = 1,
580 .default_value = 0,
581 },
Kuninori Morimoto05148912009-02-23 12:12:58 -0300582};
583
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300584
585/*
586 * general function
587 */
588
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300589static struct ov772x_priv *to_ov772x(const struct i2c_client *client)
590{
Guennadi Liakhovetski96c75392009-08-25 11:53:23 -0300591 return container_of(i2c_get_clientdata(client), struct ov772x_priv,
592 subdev);
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300593}
594
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300595static int ov772x_write_array(struct i2c_client *client,
596 const struct regval_list *vals)
597{
598 while (vals->reg_num != 0xff) {
599 int ret = i2c_smbus_write_byte_data(client,
600 vals->reg_num,
601 vals->value);
602 if (ret < 0)
603 return ret;
604 vals++;
605 }
606 return 0;
607}
608
609static int ov772x_mask_set(struct i2c_client *client,
610 u8 command,
611 u8 mask,
612 u8 set)
613{
614 s32 val = i2c_smbus_read_byte_data(client, command);
Kuninori Morimoto66b46e62009-02-23 12:12:58 -0300615 if (val < 0)
616 return val;
617
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300618 val &= ~mask;
Kuninori Morimoto66b46e62009-02-23 12:12:58 -0300619 val |= set & mask;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300620
621 return i2c_smbus_write_byte_data(client, command, val);
622}
623
624static int ov772x_reset(struct i2c_client *client)
625{
626 int ret = i2c_smbus_write_byte_data(client, COM7, SCCB_RESET);
627 msleep(1);
628 return ret;
629}
630
631/*
632 * soc_camera_ops function
633 */
634
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300635static int ov772x_s_stream(struct v4l2_subdev *sd, int enable)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300636{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300637 struct i2c_client *client = sd->priv;
638 struct ov772x_priv *priv = to_ov772x(client);
Kuninori Morimotob90c0322008-12-01 09:44:48 -0300639
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300640 if (!enable) {
641 ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, SOFT_SLEEP_MODE);
642 return 0;
Kuninori Morimotob90c0322008-12-01 09:44:48 -0300643 }
644
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300645 if (!priv->win || !priv->fmt) {
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300646 dev_err(&client->dev, "norm or win select error\n");
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300647 return -EPERM;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300648 }
649
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300650 ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, 0);
Kuninori Morimotof340e3f2009-03-13 06:08:20 -0300651
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300652 dev_dbg(&client->dev, "format %s, win %s\n",
653 priv->fmt->format->name, priv->win->name);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300654
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300655 return 0;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300656}
657
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300658static int ov772x_set_bus_param(struct soc_camera_device *icd,
659 unsigned long flags)
660{
661 return 0;
662}
663
664static unsigned long ov772x_query_bus_param(struct soc_camera_device *icd)
665{
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300666 struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
667 struct ov772x_priv *priv = i2c_get_clientdata(client);
668 struct soc_camera_link *icl = to_soc_camera_link(icd);
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300669 unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
670 SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
Guennadi Liakhovetski2d9329f2009-02-23 12:12:58 -0300671 SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth;
Guennadi Liakhovetskibd73b362008-12-23 05:54:45 -0300672
673 return soc_camera_apply_sensor_flags(icl, flags);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300674}
675
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300676static int ov772x_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
Kuninori Morimoto05148912009-02-23 12:12:58 -0300677{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300678 struct i2c_client *client = sd->priv;
679 struct ov772x_priv *priv = to_ov772x(client);
Kuninori Morimoto05148912009-02-23 12:12:58 -0300680
681 switch (ctrl->id) {
682 case V4L2_CID_VFLIP:
683 ctrl->value = priv->flag_vflip;
684 break;
685 case V4L2_CID_HFLIP:
686 ctrl->value = priv->flag_hflip;
687 break;
Guennadi Liakhovetskia813d012009-08-25 11:44:14 -0300688 case V4L2_CID_BAND_STOP_FILTER:
689 ctrl->value = priv->band_filter;
690 break;
Kuninori Morimoto05148912009-02-23 12:12:58 -0300691 }
692 return 0;
693}
694
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300695static int ov772x_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
Kuninori Morimoto05148912009-02-23 12:12:58 -0300696{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300697 struct i2c_client *client = sd->priv;
698 struct ov772x_priv *priv = to_ov772x(client);
Kuninori Morimoto05148912009-02-23 12:12:58 -0300699 int ret = 0;
700 u8 val;
701
702 switch (ctrl->id) {
703 case V4L2_CID_VFLIP:
704 val = ctrl->value ? VFLIP_IMG : 0x00;
705 priv->flag_vflip = ctrl->value;
706 if (priv->info->flags & OV772X_FLAG_VFLIP)
707 val ^= VFLIP_IMG;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300708 ret = ov772x_mask_set(client, COM3, VFLIP_IMG, val);
Kuninori Morimoto05148912009-02-23 12:12:58 -0300709 break;
710 case V4L2_CID_HFLIP:
711 val = ctrl->value ? HFLIP_IMG : 0x00;
712 priv->flag_hflip = ctrl->value;
713 if (priv->info->flags & OV772X_FLAG_HFLIP)
714 val ^= HFLIP_IMG;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300715 ret = ov772x_mask_set(client, COM3, HFLIP_IMG, val);
Kuninori Morimoto05148912009-02-23 12:12:58 -0300716 break;
Guennadi Liakhovetskia813d012009-08-25 11:44:14 -0300717 case V4L2_CID_BAND_STOP_FILTER:
718 if ((unsigned)ctrl->value > 256)
719 ctrl->value = 256;
720 if (ctrl->value == priv->band_filter)
721 break;
722 if (!ctrl->value) {
723 /* Switch the filter off, it is on now */
724 ret = ov772x_mask_set(client, BDBASE, 0xff, 0xff);
725 if (!ret)
726 ret = ov772x_mask_set(client, COM8,
727 BNDF_ON_OFF, 0);
728 } else {
729 /* Switch the filter on, set AEC low limit */
730 val = 256 - ctrl->value;
731 ret = ov772x_mask_set(client, COM8,
732 BNDF_ON_OFF, BNDF_ON_OFF);
733 if (!ret)
734 ret = ov772x_mask_set(client, BDBASE,
735 0xff, val);
736 }
737 if (!ret)
738 priv->band_filter = ctrl->value;
739 break;
Kuninori Morimoto05148912009-02-23 12:12:58 -0300740 }
741
742 return ret;
743}
744
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300745static int ov772x_g_chip_ident(struct v4l2_subdev *sd,
746 struct v4l2_dbg_chip_ident *id)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300747{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300748 struct i2c_client *client = sd->priv;
749 struct ov772x_priv *priv = to_ov772x(client);
Kuninori Morimotoaeabc882008-12-18 11:05:49 -0300750
751 id->ident = priv->model;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300752 id->revision = 0;
753
754 return 0;
755}
756
757#ifdef CONFIG_VIDEO_ADV_DEBUG
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300758static int ov772x_g_register(struct v4l2_subdev *sd,
759 struct v4l2_dbg_register *reg)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300760{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300761 struct i2c_client *client = sd->priv;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300762 int ret;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300763
Hans Verkuilaecde8b2008-12-30 07:14:19 -0300764 reg->size = 1;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300765 if (reg->reg > 0xff)
766 return -EINVAL;
767
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300768 ret = i2c_smbus_read_byte_data(client, reg->reg);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300769 if (ret < 0)
770 return ret;
771
772 reg->val = (__u64)ret;
773
774 return 0;
775}
776
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300777static int ov772x_s_register(struct v4l2_subdev *sd,
778 struct v4l2_dbg_register *reg)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300779{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300780 struct i2c_client *client = sd->priv;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300781
782 if (reg->reg > 0xff ||
783 reg->val > 0xff)
784 return -EINVAL;
785
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300786 return i2c_smbus_write_byte_data(client, reg->reg, reg->val);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300787}
788#endif
789
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300790static const struct ov772x_win_size *ov772x_select_win(u32 width, u32 height)
Kuninori Morimotof82a8562008-12-29 06:04:44 -0300791{
792 __u32 diff;
793 const struct ov772x_win_size *win;
794
795 /* default is QVGA */
796 diff = abs(width - ov772x_win_qvga.width) +
797 abs(height - ov772x_win_qvga.height);
798 win = &ov772x_win_qvga;
799
800 /* VGA */
801 if (diff >
802 abs(width - ov772x_win_vga.width) +
803 abs(height - ov772x_win_vga.height))
804 win = &ov772x_win_vga;
805
806 return win;
807}
808
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300809static int ov772x_set_params(struct i2c_client *client,
Guennadi Liakhovetskibf62e1d2009-08-25 11:46:42 -0300810 u32 *width, u32 *height, u32 pixfmt)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300811{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -0300812 struct ov772x_priv *priv = to_ov772x(client);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300813 int ret = -EINVAL;
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300814 u8 val;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300815 int i;
816
817 /*
818 * select format
819 */
820 priv->fmt = NULL;
821 for (i = 0; i < ARRAY_SIZE(ov772x_cfmts); i++) {
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300822 if (pixfmt == ov772x_cfmts[i].format->fourcc) {
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300823 priv->fmt = ov772x_cfmts + i;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300824 break;
825 }
826 }
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300827 if (!priv->fmt)
828 goto ov772x_set_fmt_error;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300829
Kuninori Morimotof82a8562008-12-29 06:04:44 -0300830 /*
831 * select win
832 */
Guennadi Liakhovetskibf62e1d2009-08-25 11:46:42 -0300833 priv->win = ov772x_select_win(*width, *height);
Kuninori Morimotof82a8562008-12-29 06:04:44 -0300834
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300835 /*
836 * reset hardware
837 */
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300838 ov772x_reset(client);
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300839
840 /*
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300841 * Edge Ctrl
842 */
843 if (priv->info->edgectrl.strength & OV772X_MANUAL_EDGE_CTRL) {
844
845 /*
846 * Manual Edge Control Mode
847 *
848 * Edge auto strength bit is set by default.
849 * Remove it when manual mode.
850 */
851
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300852 ret = ov772x_mask_set(client, DSPAUTO, EDGE_ACTRL, 0x00);
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300853 if (ret < 0)
854 goto ov772x_set_fmt_error;
855
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300856 ret = ov772x_mask_set(client,
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300857 EDGE_TRSHLD, EDGE_THRESHOLD_MASK,
858 priv->info->edgectrl.threshold);
859 if (ret < 0)
860 goto ov772x_set_fmt_error;
861
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300862 ret = ov772x_mask_set(client,
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300863 EDGE_STRNGT, EDGE_STRENGTH_MASK,
864 priv->info->edgectrl.strength);
865 if (ret < 0)
866 goto ov772x_set_fmt_error;
867
868 } else if (priv->info->edgectrl.upper > priv->info->edgectrl.lower) {
869 /*
870 * Auto Edge Control Mode
871 *
872 * set upper and lower limit
873 */
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300874 ret = ov772x_mask_set(client,
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300875 EDGE_UPPER, EDGE_UPPER_MASK,
876 priv->info->edgectrl.upper);
877 if (ret < 0)
878 goto ov772x_set_fmt_error;
879
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300880 ret = ov772x_mask_set(client,
Kuninori Morimotodb6cbc82009-03-31 03:44:22 -0300881 EDGE_LOWER, EDGE_LOWER_MASK,
882 priv->info->edgectrl.lower);
883 if (ret < 0)
884 goto ov772x_set_fmt_error;
885 }
886
887 /*
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300888 * set size format
889 */
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300890 ret = ov772x_write_array(client, priv->win->regs);
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300891 if (ret < 0)
892 goto ov772x_set_fmt_error;
893
894 /*
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300895 * set DSP_CTRL3
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300896 */
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300897 val = priv->fmt->dsp3;
898 if (val) {
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300899 ret = ov772x_mask_set(client,
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300900 DSP_CTRL3, UV_MASK, val);
901 if (ret < 0)
902 goto ov772x_set_fmt_error;
903 }
904
905 /*
906 * set COM3
907 */
908 val = priv->fmt->com3;
Kuninori Morimoto05148912009-02-23 12:12:58 -0300909 if (priv->info->flags & OV772X_FLAG_VFLIP)
910 val |= VFLIP_IMG;
911 if (priv->info->flags & OV772X_FLAG_HFLIP)
912 val |= HFLIP_IMG;
913 if (priv->flag_vflip)
914 val ^= VFLIP_IMG;
915 if (priv->flag_hflip)
916 val ^= HFLIP_IMG;
917
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300918 ret = ov772x_mask_set(client,
Kuninori Morimoto05148912009-02-23 12:12:58 -0300919 COM3, SWAP_MASK | IMG_MASK, val);
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300920 if (ret < 0)
921 goto ov772x_set_fmt_error;
922
923 /*
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300924 * set COM7
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300925 */
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300926 val = priv->win->com7_bit | priv->fmt->com7;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300927 ret = ov772x_mask_set(client,
Kuninori Morimotocdce7c02009-02-23 12:12:58 -0300928 COM7, (SLCT_MASK | FMT_MASK | OFMT_MASK),
929 val);
930 if (ret < 0)
931 goto ov772x_set_fmt_error;
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300932
Guennadi Liakhovetskia813d012009-08-25 11:44:14 -0300933 /*
934 * set COM8
935 */
936 if (priv->band_filter) {
937 ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, 1);
938 if (!ret)
939 ret = ov772x_mask_set(client, BDBASE,
940 0xff, 256 - priv->band_filter);
941 if (ret < 0)
942 goto ov772x_set_fmt_error;
943 }
944
Guennadi Liakhovetskibf62e1d2009-08-25 11:46:42 -0300945 *width = priv->win->width;
946 *height = priv->win->height;
947
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300948 return ret;
949
950ov772x_set_fmt_error:
951
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -0300952 ov772x_reset(client);
Kuninori Morimoto2941e812009-02-23 12:12:58 -0300953 priv->win = NULL;
954 priv->fmt = NULL;
955
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -0300956 return ret;
957}
958
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -0300959static int ov772x_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
960{
961 a->c.left = 0;
962 a->c.top = 0;
963 a->c.width = VGA_WIDTH;
964 a->c.height = VGA_HEIGHT;
965 a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
966
967 return 0;
968}
969
970static int ov772x_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
971{
972 a->bounds.left = 0;
973 a->bounds.top = 0;
974 a->bounds.width = VGA_WIDTH;
975 a->bounds.height = VGA_HEIGHT;
976 a->defrect = a->bounds;
977 a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
978 a->pixelaspect.numerator = 1;
979 a->pixelaspect.denominator = 1;
980
981 return 0;
982}
983
984static int ov772x_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
985{
986 struct i2c_client *client = sd->priv;
987 struct ov772x_priv *priv = to_ov772x(client);
988 struct v4l2_pix_format *pix = &f->fmt.pix;
989
990 if (!priv->win || !priv->fmt) {
991 u32 width = VGA_WIDTH, height = VGA_HEIGHT;
992 int ret = ov772x_set_params(client, &width, &height,
993 V4L2_PIX_FMT_YUYV);
994 if (ret < 0)
995 return ret;
996 }
997
998 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
999
1000 pix->width = priv->win->width;
1001 pix->height = priv->win->height;
1002 pix->pixelformat = priv->fmt->format->fourcc;
1003 pix->colorspace = priv->fmt->format->colorspace;
1004 pix->field = V4L2_FIELD_NONE;
1005
1006 return 0;
1007}
1008
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001009static int ov772x_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -03001010{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001011 struct i2c_client *client = sd->priv;
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -03001012 struct v4l2_pix_format *pix = &f->fmt.pix;
1013
Guennadi Liakhovetskibf62e1d2009-08-25 11:46:42 -03001014 return ov772x_set_params(client, &pix->width, &pix->height,
Guennadi Liakhovetski09e231b2009-03-13 06:08:20 -03001015 pix->pixelformat);
1016}
1017
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001018static int ov772x_try_fmt(struct v4l2_subdev *sd,
1019 struct v4l2_format *f)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001020{
Kuninori Morimotof82a8562008-12-29 06:04:44 -03001021 struct v4l2_pix_format *pix = &f->fmt.pix;
1022 const struct ov772x_win_size *win;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001023
Kuninori Morimotof82a8562008-12-29 06:04:44 -03001024 /*
1025 * select suitable win
1026 */
1027 win = ov772x_select_win(pix->width, pix->height);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001028
Kuninori Morimotof82a8562008-12-29 06:04:44 -03001029 pix->width = win->width;
1030 pix->height = win->height;
1031 pix->field = V4L2_FIELD_NONE;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001032
1033 return 0;
1034}
1035
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001036static int ov772x_video_probe(struct soc_camera_device *icd,
1037 struct i2c_client *client)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001038{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001039 struct ov772x_priv *priv = to_ov772x(client);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001040 u8 pid, ver;
Kuninori Morimotoaeabc882008-12-18 11:05:49 -03001041 const char *devname;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001042
1043 /*
1044 * We must have a parent by now. And it cannot be a wrong one.
1045 * So this entire test is completely redundant.
1046 */
1047 if (!icd->dev.parent ||
1048 to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
1049 return -ENODEV;
1050
1051 /*
1052 * ov772x only use 8 or 10 bit bus width
1053 */
1054 if (SOCAM_DATAWIDTH_10 != priv->info->buswidth &&
1055 SOCAM_DATAWIDTH_8 != priv->info->buswidth) {
Guennadi Liakhovetski85f8be62009-08-25 11:47:00 -03001056 dev_err(&client->dev, "bus width error\n");
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001057 return -ENODEV;
1058 }
1059
1060 icd->formats = ov772x_fmt_lists;
1061 icd->num_formats = ARRAY_SIZE(ov772x_fmt_lists);
1062
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001063 /*
1064 * check and show product ID and manufacturer ID
1065 */
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001066 pid = i2c_smbus_read_byte_data(client, PID);
1067 ver = i2c_smbus_read_byte_data(client, VER);
Kuninori Morimotoaeabc882008-12-18 11:05:49 -03001068
1069 switch (VERSION(pid, ver)) {
1070 case OV7720:
1071 devname = "ov7720";
1072 priv->model = V4L2_IDENT_OV7720;
1073 break;
Kuninori Morimoto3cac2ca2008-12-18 11:07:11 -03001074 case OV7725:
1075 devname = "ov7725";
1076 priv->model = V4L2_IDENT_OV7725;
1077 break;
Kuninori Morimotoaeabc882008-12-18 11:05:49 -03001078 default:
Guennadi Liakhovetski85f8be62009-08-25 11:47:00 -03001079 dev_err(&client->dev,
Kuninori Morimotob90c0322008-12-01 09:44:48 -03001080 "Product ID error %x:%x\n", pid, ver);
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001081 return -ENODEV;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001082 }
1083
Guennadi Liakhovetski85f8be62009-08-25 11:47:00 -03001084 dev_info(&client->dev,
Kuninori Morimotoaeabc882008-12-18 11:05:49 -03001085 "%s Product ID %0x:%0x Manufacturer ID %x:%x\n",
1086 devname,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001087 pid,
1088 ver,
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001089 i2c_smbus_read_byte_data(client, MIDH),
1090 i2c_smbus_read_byte_data(client, MIDL));
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001091
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001092 return 0;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001093}
1094
1095static struct soc_camera_ops ov772x_ops = {
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001096 .set_bus_param = ov772x_set_bus_param,
1097 .query_bus_param = ov772x_query_bus_param,
Kuninori Morimoto05148912009-02-23 12:12:58 -03001098 .controls = ov772x_controls,
1099 .num_controls = ARRAY_SIZE(ov772x_controls),
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001100};
1101
1102static struct v4l2_subdev_core_ops ov772x_subdev_core_ops = {
1103 .g_ctrl = ov772x_g_ctrl,
1104 .s_ctrl = ov772x_s_ctrl,
1105 .g_chip_ident = ov772x_g_chip_ident,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001106#ifdef CONFIG_VIDEO_ADV_DEBUG
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001107 .g_register = ov772x_g_register,
1108 .s_register = ov772x_s_register,
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001109#endif
1110};
1111
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001112static struct v4l2_subdev_video_ops ov772x_subdev_video_ops = {
1113 .s_stream = ov772x_s_stream,
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -03001114 .g_fmt = ov772x_g_fmt,
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001115 .s_fmt = ov772x_s_fmt,
1116 .try_fmt = ov772x_try_fmt,
Guennadi Liakhovetski6a6c8782009-08-25 11:50:46 -03001117 .cropcap = ov772x_cropcap,
1118 .g_crop = ov772x_g_crop,
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001119};
1120
1121static struct v4l2_subdev_ops ov772x_subdev_ops = {
1122 .core = &ov772x_subdev_core_ops,
1123 .video = &ov772x_subdev_video_ops,
1124};
1125
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001126/*
1127 * i2c_driver function
1128 */
1129
Hans Verkuilbef216b2008-10-30 10:57:14 -03001130static int ov772x_probe(struct i2c_client *client,
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001131 const struct i2c_device_id *did)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001132{
1133 struct ov772x_priv *priv;
1134 struct ov772x_camera_info *info;
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001135 struct soc_camera_device *icd = client->dev.platform_data;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001136 struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001137 struct soc_camera_link *icl;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001138 int ret;
1139
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001140 if (!icd) {
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001141 dev_err(&client->dev, "OV772X: missing soc-camera data!\n");
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001142 return -EINVAL;
1143 }
1144
1145 icl = to_soc_camera_link(icd);
1146 if (!icl)
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001147 return -EINVAL;
1148
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001149 info = container_of(icl, struct ov772x_camera_info, link);
Guennadi Liakhovetski0a861e92009-05-12 15:13:32 +00001150
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001151 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1152 dev_err(&adapter->dev,
1153 "I2C-Adapter doesn't support "
1154 "I2C_FUNC_SMBUS_BYTE_DATA\n");
1155 return -EIO;
1156 }
1157
1158 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
1159 if (!priv)
1160 return -ENOMEM;
1161
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001162 priv->info = info;
1163
1164 v4l2_i2c_subdev_init(&priv->subdev, client, &ov772x_subdev_ops);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001165
Guennadi Liakhovetskia0705b02009-08-25 11:46:17 -03001166 icd->ops = &ov772x_ops;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001167
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001168 ret = ov772x_video_probe(icd, client);
Kuninori Morimoto77fe3d42008-12-29 06:04:37 -03001169 if (ret) {
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001170 icd->ops = NULL;
Kuninori Morimoto77fe3d42008-12-29 06:04:37 -03001171 i2c_set_clientdata(client, NULL);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001172 kfree(priv);
Kuninori Morimoto77fe3d42008-12-29 06:04:37 -03001173 }
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001174
1175 return ret;
1176}
1177
1178static int ov772x_remove(struct i2c_client *client)
1179{
Guennadi Liakhovetski979ea1d2009-08-25 11:43:33 -03001180 struct ov772x_priv *priv = to_ov772x(client);
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001181 struct soc_camera_device *icd = client->dev.platform_data;
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001182
Guennadi Liakhovetski40e2e092009-08-25 11:28:22 -03001183 icd->ops = NULL;
Kuninori Morimoto77fe3d42008-12-29 06:04:37 -03001184 i2c_set_clientdata(client, NULL);
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001185 kfree(priv);
1186 return 0;
1187}
1188
1189static const struct i2c_device_id ov772x_id[] = {
Kuninori Morimotoaeabc882008-12-18 11:05:49 -03001190 { "ov772x", 0 },
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001191 { }
1192};
1193MODULE_DEVICE_TABLE(i2c, ov772x_id);
1194
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001195static struct i2c_driver ov772x_i2c_driver = {
1196 .driver = {
1197 .name = "ov772x",
1198 },
1199 .probe = ov772x_probe,
1200 .remove = ov772x_remove,
1201 .id_table = ov772x_id,
1202};
1203
1204/*
1205 * module function
1206 */
1207
1208static int __init ov772x_module_init(void)
1209{
Kuninori Morimoto08a66ae2008-10-24 15:43:07 -03001210 return i2c_add_driver(&ov772x_i2c_driver);
1211}
1212
1213static void __exit ov772x_module_exit(void)
1214{
1215 i2c_del_driver(&ov772x_i2c_driver);
1216}
1217
1218module_init(ov772x_module_init);
1219module_exit(ov772x_module_exit);
1220
1221MODULE_DESCRIPTION("SoC Camera driver for ov772x");
1222MODULE_AUTHOR("Kuninori Morimoto");
1223MODULE_LICENSE("GPL v2");