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3153ac9c AP |
1 | /* |
2 | * ov2640 Camera Driver | |
3 | * | |
4 | * Copyright (C) 2010 Alberto Panizzo <maramaopercheseimorto@gmail.com> | |
5 | * | |
6 | * Based on ov772x, ov9640 drivers and previous non merged implementations. | |
7 | * | |
8 | * Copyright 2005-2009 Freescale Semiconductor, Inc. All Rights Reserved. | |
9 | * Copyright (C) 2006, OmniVision | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/init.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/delay.h> | |
21 | #include <linux/videodev2.h> | |
22 | #include <media/v4l2-chip-ident.h> | |
23 | #include <media/v4l2-subdev.h> | |
24 | #include <media/soc_camera.h> | |
25 | #include <media/soc_mediabus.h> | |
26 | ||
27 | #define VAL_SET(x, mask, rshift, lshift) \ | |
28 | ((((x) >> rshift) & mask) << lshift) | |
29 | /* | |
30 | * DSP registers | |
31 | * register offset for BANK_SEL == BANK_SEL_DSP | |
32 | */ | |
33 | #define R_BYPASS 0x05 /* Bypass DSP */ | |
34 | #define R_BYPASS_DSP_BYPAS 0x01 /* Bypass DSP, sensor out directly */ | |
35 | #define R_BYPASS_USE_DSP 0x00 /* Use the internal DSP */ | |
36 | #define QS 0x44 /* Quantization Scale Factor */ | |
37 | #define CTRLI 0x50 | |
38 | #define CTRLI_LP_DP 0x80 | |
39 | #define CTRLI_ROUND 0x40 | |
40 | #define CTRLI_V_DIV_SET(x) VAL_SET(x, 0x3, 0, 3) | |
41 | #define CTRLI_H_DIV_SET(x) VAL_SET(x, 0x3, 0, 0) | |
42 | #define HSIZE 0x51 /* H_SIZE[7:0] (real/4) */ | |
43 | #define HSIZE_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
44 | #define VSIZE 0x52 /* V_SIZE[7:0] (real/4) */ | |
45 | #define VSIZE_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
46 | #define XOFFL 0x53 /* OFFSET_X[7:0] */ | |
47 | #define XOFFL_SET(x) VAL_SET(x, 0xFF, 0, 0) | |
48 | #define YOFFL 0x54 /* OFFSET_Y[7:0] */ | |
49 | #define YOFFL_SET(x) VAL_SET(x, 0xFF, 0, 0) | |
50 | #define VHYX 0x55 /* Offset and size completion */ | |
51 | #define VHYX_VSIZE_SET(x) VAL_SET(x, 0x1, (8+2), 7) | |
52 | #define VHYX_HSIZE_SET(x) VAL_SET(x, 0x1, (8+2), 3) | |
53 | #define VHYX_YOFF_SET(x) VAL_SET(x, 0x3, 8, 4) | |
54 | #define VHYX_XOFF_SET(x) VAL_SET(x, 0x3, 8, 0) | |
55 | #define DPRP 0x56 | |
56 | #define TEST 0x57 /* Horizontal size completion */ | |
57 | #define TEST_HSIZE_SET(x) VAL_SET(x, 0x1, (9+2), 7) | |
58 | #define ZMOW 0x5A /* Zoom: Out Width OUTW[7:0] (real/4) */ | |
59 | #define ZMOW_OUTW_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
60 | #define ZMOH 0x5B /* Zoom: Out Height OUTH[7:0] (real/4) */ | |
61 | #define ZMOH_OUTH_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
62 | #define ZMHH 0x5C /* Zoom: Speed and H&W completion */ | |
63 | #define ZMHH_ZSPEED_SET(x) VAL_SET(x, 0x0F, 0, 4) | |
64 | #define ZMHH_OUTH_SET(x) VAL_SET(x, 0x1, (8+2), 2) | |
65 | #define ZMHH_OUTW_SET(x) VAL_SET(x, 0x3, (8+2), 0) | |
66 | #define BPADDR 0x7C /* SDE Indirect Register Access: Address */ | |
67 | #define BPDATA 0x7D /* SDE Indirect Register Access: Data */ | |
68 | #define CTRL2 0x86 /* DSP Module enable 2 */ | |
69 | #define CTRL2_DCW_EN 0x20 | |
70 | #define CTRL2_SDE_EN 0x10 | |
71 | #define CTRL2_UV_ADJ_EN 0x08 | |
72 | #define CTRL2_UV_AVG_EN 0x04 | |
73 | #define CTRL2_CMX_EN 0x01 | |
74 | #define CTRL3 0x87 /* DSP Module enable 3 */ | |
75 | #define CTRL3_BPC_EN 0x80 | |
76 | #define CTRL3_WPC_EN 0x40 | |
77 | #define SIZEL 0x8C /* Image Size Completion */ | |
78 | #define SIZEL_HSIZE8_11_SET(x) VAL_SET(x, 0x1, 11, 6) | |
79 | #define SIZEL_HSIZE8_SET(x) VAL_SET(x, 0x7, 0, 3) | |
80 | #define SIZEL_VSIZE8_SET(x) VAL_SET(x, 0x7, 0, 0) | |
81 | #define HSIZE8 0xC0 /* Image Horizontal Size HSIZE[10:3] */ | |
82 | #define HSIZE8_SET(x) VAL_SET(x, 0xFF, 3, 0) | |
83 | #define VSIZE8 0xC1 /* Image Vertical Size VSIZE[10:3] */ | |
84 | #define VSIZE8_SET(x) VAL_SET(x, 0xFF, 3, 0) | |
85 | #define CTRL0 0xC2 /* DSP Module enable 0 */ | |
86 | #define CTRL0_AEC_EN 0x80 | |
87 | #define CTRL0_AEC_SEL 0x40 | |
88 | #define CTRL0_STAT_SEL 0x20 | |
89 | #define CTRL0_VFIRST 0x10 | |
90 | #define CTRL0_YUV422 0x08 | |
91 | #define CTRL0_YUV_EN 0x04 | |
92 | #define CTRL0_RGB_EN 0x02 | |
93 | #define CTRL0_RAW_EN 0x01 | |
94 | #define CTRL1 0xC3 /* DSP Module enable 1 */ | |
95 | #define CTRL1_CIP 0x80 | |
96 | #define CTRL1_DMY 0x40 | |
97 | #define CTRL1_RAW_GMA 0x20 | |
98 | #define CTRL1_DG 0x10 | |
99 | #define CTRL1_AWB 0x08 | |
100 | #define CTRL1_AWB_GAIN 0x04 | |
101 | #define CTRL1_LENC 0x02 | |
102 | #define CTRL1_PRE 0x01 | |
103 | #define R_DVP_SP 0xD3 /* DVP output speed control */ | |
104 | #define R_DVP_SP_AUTO_MODE 0x80 | |
105 | #define R_DVP_SP_DVP_MASK 0x3F /* DVP PCLK = sysclk (48)/[6:0] (YUV0); | |
106 | * = sysclk (48)/(2*[6:0]) (RAW);*/ | |
107 | #define IMAGE_MODE 0xDA /* Image Output Format Select */ | |
108 | #define IMAGE_MODE_Y8_DVP_EN 0x40 | |
109 | #define IMAGE_MODE_JPEG_EN 0x10 | |
110 | #define IMAGE_MODE_YUV422 0x00 | |
111 | #define IMAGE_MODE_RAW10 0x04 /* (DVP) */ | |
112 | #define IMAGE_MODE_RGB565 0x08 | |
113 | #define IMAGE_MODE_HREF_VSYNC 0x02 /* HREF timing select in DVP JPEG output | |
114 | * mode (0 for HREF is same as sensor) */ | |
115 | #define IMAGE_MODE_LBYTE_FIRST 0x01 /* Byte swap enable for DVP | |
116 | * 1: Low byte first UYVY (C2[4] =0) | |
117 | * VYUY (C2[4] =1) | |
118 | * 0: High byte first YUYV (C2[4]=0) | |
119 | * YVYU (C2[4] = 1) */ | |
120 | #define RESET 0xE0 /* Reset */ | |
121 | #define RESET_MICROC 0x40 | |
122 | #define RESET_SCCB 0x20 | |
123 | #define RESET_JPEG 0x10 | |
124 | #define RESET_DVP 0x04 | |
125 | #define RESET_IPU 0x02 | |
126 | #define RESET_CIF 0x01 | |
127 | #define REGED 0xED /* Register ED */ | |
128 | #define REGED_CLK_OUT_DIS 0x10 | |
129 | #define MS_SP 0xF0 /* SCCB Master Speed */ | |
130 | #define SS_ID 0xF7 /* SCCB Slave ID */ | |
131 | #define SS_CTRL 0xF8 /* SCCB Slave Control */ | |
132 | #define SS_CTRL_ADD_AUTO_INC 0x20 | |
133 | #define SS_CTRL_EN 0x08 | |
134 | #define SS_CTRL_DELAY_CLK 0x04 | |
135 | #define SS_CTRL_ACC_EN 0x02 | |
136 | #define SS_CTRL_SEN_PASS_THR 0x01 | |
137 | #define MC_BIST 0xF9 /* Microcontroller misc register */ | |
138 | #define MC_BIST_RESET 0x80 /* Microcontroller Reset */ | |
139 | #define MC_BIST_BOOT_ROM_SEL 0x40 | |
140 | #define MC_BIST_12KB_SEL 0x20 | |
141 | #define MC_BIST_12KB_MASK 0x30 | |
142 | #define MC_BIST_512KB_SEL 0x08 | |
143 | #define MC_BIST_512KB_MASK 0x0C | |
144 | #define MC_BIST_BUSY_BIT_R 0x02 | |
145 | #define MC_BIST_MC_RES_ONE_SH_W 0x02 | |
146 | #define MC_BIST_LAUNCH 0x01 | |
147 | #define BANK_SEL 0xFF /* Register Bank Select */ | |
148 | #define BANK_SEL_DSP 0x00 | |
149 | #define BANK_SEL_SENS 0x01 | |
150 | ||
151 | /* | |
152 | * Sensor registers | |
153 | * register offset for BANK_SEL == BANK_SEL_SENS | |
154 | */ | |
155 | #define GAIN 0x00 /* AGC - Gain control gain setting */ | |
156 | #define COM1 0x03 /* Common control 1 */ | |
157 | #define COM1_1_DUMMY_FR 0x40 | |
158 | #define COM1_3_DUMMY_FR 0x80 | |
159 | #define COM1_7_DUMMY_FR 0xC0 | |
160 | #define COM1_VWIN_LSB_UXGA 0x0F | |
161 | #define COM1_VWIN_LSB_SVGA 0x0A | |
162 | #define COM1_VWIN_LSB_CIF 0x06 | |
163 | #define REG04 0x04 /* Register 04 */ | |
164 | #define REG04_DEF 0x20 /* Always set */ | |
165 | #define REG04_HFLIP_IMG 0x80 /* Horizontal mirror image ON/OFF */ | |
166 | #define REG04_VFLIP_IMG 0x40 /* Vertical flip image ON/OFF */ | |
167 | #define REG04_VREF_EN 0x10 | |
168 | #define REG04_HREF_EN 0x08 | |
169 | #define REG04_AEC_SET(x) VAL_SET(x, 0x3, 0, 0) | |
170 | #define REG08 0x08 /* Frame Exposure One-pin Control Pre-charge Row Num */ | |
171 | #define COM2 0x09 /* Common control 2 */ | |
172 | #define COM2_SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */ | |
173 | /* Output drive capability */ | |
174 | #define COM2_OCAP_Nx_SET(N) (((N) - 1) & 0x03) /* N = [1x .. 4x] */ | |
175 | #define PID 0x0A /* Product ID Number MSB */ | |
176 | #define VER 0x0B /* Product ID Number LSB */ | |
177 | #define COM3 0x0C /* Common control 3 */ | |
178 | #define COM3_BAND_50H 0x04 /* 0 For Banding at 60H */ | |
179 | #define COM3_BAND_AUTO 0x02 /* Auto Banding */ | |
180 | #define COM3_SING_FR_SNAPSH 0x01 /* 0 For enable live video output after the | |
181 | * snapshot sequence*/ | |
182 | #define AEC 0x10 /* AEC[9:2] Exposure Value */ | |
183 | #define CLKRC 0x11 /* Internal clock */ | |
184 | #define CLKRC_EN 0x80 | |
185 | #define CLKRC_DIV_SET(x) (((x) - 1) & 0x1F) /* CLK = XVCLK/(x) */ | |
186 | #define COM7 0x12 /* Common control 7 */ | |
187 | #define COM7_SRST 0x80 /* Initiates system reset. All registers are | |
188 | * set to factory default values after which | |
189 | * the chip resumes normal operation */ | |
190 | #define COM7_RES_UXGA 0x00 /* Resolution selectors for UXGA */ | |
191 | #define COM7_RES_SVGA 0x40 /* SVGA */ | |
192 | #define COM7_RES_CIF 0x20 /* CIF */ | |
193 | #define COM7_ZOOM_EN 0x04 /* Enable Zoom mode */ | |
194 | #define COM7_COLOR_BAR_TEST 0x02 /* Enable Color Bar Test Pattern */ | |
195 | #define COM8 0x13 /* Common control 8 */ | |
196 | #define COM8_DEF 0xC0 /* Banding filter ON/OFF */ | |
197 | #define COM8_BNDF_EN 0x20 /* Banding filter ON/OFF */ | |
198 | #define COM8_AGC_EN 0x04 /* AGC Auto/Manual control selection */ | |
199 | #define COM8_AEC_EN 0x01 /* Auto/Manual Exposure control */ | |
200 | #define COM9 0x14 /* Common control 9 | |
201 | * Automatic gain ceiling - maximum AGC value [7:5]*/ | |
202 | #define COM9_AGC_GAIN_2x 0x00 /* 000 : 2x */ | |
203 | #define COM9_AGC_GAIN_4x 0x20 /* 001 : 4x */ | |
204 | #define COM9_AGC_GAIN_8x 0x40 /* 010 : 8x */ | |
205 | #define COM9_AGC_GAIN_16x 0x60 /* 011 : 16x */ | |
206 | #define COM9_AGC_GAIN_32x 0x80 /* 100 : 32x */ | |
207 | #define COM9_AGC_GAIN_64x 0xA0 /* 101 : 64x */ | |
208 | #define COM9_AGC_GAIN_128x 0xC0 /* 110 : 128x */ | |
209 | #define COM10 0x15 /* Common control 10 */ | |
210 | #define COM10_PCLK_HREF 0x20 /* PCLK output qualified by HREF */ | |
211 | #define COM10_PCLK_RISE 0x10 /* Data is updated at the rising edge of | |
212 | * PCLK (user can latch data at the next | |
213 | * falling edge of PCLK). | |
214 | * 0 otherwise. */ | |
215 | #define COM10_HREF_INV 0x08 /* Invert HREF polarity: | |
216 | * HREF negative for valid data*/ | |
217 | #define COM10_VSINC_INV 0x02 /* Invert VSYNC polarity */ | |
218 | #define HSTART 0x17 /* Horizontal Window start MSB 8 bit */ | |
219 | #define HEND 0x18 /* Horizontal Window end MSB 8 bit */ | |
220 | #define VSTART 0x19 /* Vertical Window start MSB 8 bit */ | |
221 | #define VEND 0x1A /* Vertical Window end MSB 8 bit */ | |
222 | #define MIDH 0x1C /* Manufacturer ID byte - high */ | |
223 | #define MIDL 0x1D /* Manufacturer ID byte - low */ | |
224 | #define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */ | |
225 | #define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */ | |
226 | #define VV 0x26 /* AGC/AEC Fast mode operating region */ | |
227 | #define VV_HIGH_TH_SET(x) VAL_SET(x, 0xF, 0, 4) | |
228 | #define VV_LOW_TH_SET(x) VAL_SET(x, 0xF, 0, 0) | |
229 | #define REG2A 0x2A /* Dummy pixel insert MSB */ | |
230 | #define FRARL 0x2B /* Dummy pixel insert LSB */ | |
231 | #define ADDVFL 0x2D /* LSB of insert dummy lines in Vertical direction */ | |
232 | #define ADDVFH 0x2E /* MSB of insert dummy lines in Vertical direction */ | |
233 | #define YAVG 0x2F /* Y/G Channel Average value */ | |
234 | #define REG32 0x32 /* Common Control 32 */ | |
235 | #define REG32_PCLK_DIV_2 0x80 /* PCLK freq divided by 2 */ | |
236 | #define REG32_PCLK_DIV_4 0xC0 /* PCLK freq divided by 4 */ | |
237 | #define ARCOM2 0x34 /* Zoom: Horizontal start point */ | |
238 | #define REG45 0x45 /* Register 45 */ | |
239 | #define FLL 0x46 /* Frame Length Adjustment LSBs */ | |
240 | #define FLH 0x47 /* Frame Length Adjustment MSBs */ | |
241 | #define COM19 0x48 /* Zoom: Vertical start point */ | |
242 | #define ZOOMS 0x49 /* Zoom: Vertical start point */ | |
243 | #define COM22 0x4B /* Flash light control */ | |
244 | #define COM25 0x4E /* For Banding operations */ | |
245 | #define BD50 0x4F /* 50Hz Banding AEC 8 LSBs */ | |
246 | #define BD60 0x50 /* 60Hz Banding AEC 8 LSBs */ | |
247 | #define REG5D 0x5D /* AVGsel[7:0], 16-zone average weight option */ | |
248 | #define REG5E 0x5E /* AVGsel[15:8], 16-zone average weight option */ | |
249 | #define REG5F 0x5F /* AVGsel[23:16], 16-zone average weight option */ | |
250 | #define REG60 0x60 /* AVGsel[31:24], 16-zone average weight option */ | |
251 | #define HISTO_LOW 0x61 /* Histogram Algorithm Low Level */ | |
252 | #define HISTO_HIGH 0x62 /* Histogram Algorithm High Level */ | |
253 | ||
254 | /* | |
255 | * ID | |
256 | */ | |
257 | #define MANUFACTURER_ID 0x7FA2 | |
258 | #define PID_OV2640 0x2642 | |
259 | #define VERSION(pid, ver) ((pid << 8) | (ver & 0xFF)) | |
260 | ||
261 | /* | |
262 | * Struct | |
263 | */ | |
264 | struct regval_list { | |
265 | u8 reg_num; | |
266 | u8 value; | |
267 | }; | |
268 | ||
269 | /* Supported resolutions */ | |
270 | enum ov2640_width { | |
271 | W_QCIF = 176, | |
272 | W_QVGA = 320, | |
273 | W_CIF = 352, | |
274 | W_VGA = 640, | |
275 | W_SVGA = 800, | |
276 | W_XGA = 1024, | |
277 | W_SXGA = 1280, | |
278 | W_UXGA = 1600, | |
279 | }; | |
280 | ||
281 | enum ov2640_height { | |
282 | H_QCIF = 144, | |
283 | H_QVGA = 240, | |
284 | H_CIF = 288, | |
285 | H_VGA = 480, | |
286 | H_SVGA = 600, | |
287 | H_XGA = 768, | |
288 | H_SXGA = 1024, | |
289 | H_UXGA = 1200, | |
290 | }; | |
291 | ||
292 | struct ov2640_win_size { | |
293 | char *name; | |
294 | enum ov2640_width width; | |
295 | enum ov2640_height height; | |
296 | const struct regval_list *regs; | |
297 | }; | |
298 | ||
299 | ||
300 | struct ov2640_priv { | |
301 | struct v4l2_subdev subdev; | |
302 | struct ov2640_camera_info *info; | |
303 | enum v4l2_mbus_pixelcode cfmt_code; | |
304 | const struct ov2640_win_size *win; | |
305 | int model; | |
306 | u16 flag_vflip:1; | |
307 | u16 flag_hflip:1; | |
308 | }; | |
309 | ||
310 | /* | |
311 | * Registers settings | |
312 | */ | |
313 | ||
314 | #define ENDMARKER { 0xff, 0xff } | |
315 | ||
316 | static const struct regval_list ov2640_init_regs[] = { | |
317 | { BANK_SEL, BANK_SEL_DSP }, | |
318 | { 0x2c, 0xff }, | |
319 | { 0x2e, 0xdf }, | |
320 | { BANK_SEL, BANK_SEL_SENS }, | |
321 | { 0x3c, 0x32 }, | |
322 | { CLKRC, CLKRC_DIV_SET(1) }, | |
323 | { COM2, COM2_OCAP_Nx_SET(3) }, | |
324 | { REG04, REG04_DEF | REG04_HREF_EN }, | |
325 | { COM8, COM8_DEF | COM8_BNDF_EN | COM8_AGC_EN | COM8_AEC_EN }, | |
326 | { COM9, COM9_AGC_GAIN_8x | 0x08}, | |
327 | { 0x2c, 0x0c }, | |
328 | { 0x33, 0x78 }, | |
329 | { 0x3a, 0x33 }, | |
330 | { 0x3b, 0xfb }, | |
331 | { 0x3e, 0x00 }, | |
332 | { 0x43, 0x11 }, | |
333 | { 0x16, 0x10 }, | |
334 | { 0x39, 0x02 }, | |
335 | { 0x35, 0x88 }, | |
336 | { 0x22, 0x0a }, | |
337 | { 0x37, 0x40 }, | |
338 | { 0x23, 0x00 }, | |
339 | { ARCOM2, 0xa0 }, | |
340 | { 0x06, 0x02 }, | |
341 | { 0x06, 0x88 }, | |
342 | { 0x07, 0xc0 }, | |
343 | { 0x0d, 0xb7 }, | |
344 | { 0x0e, 0x01 }, | |
345 | { 0x4c, 0x00 }, | |
346 | { 0x4a, 0x81 }, | |
347 | { 0x21, 0x99 }, | |
348 | { AEW, 0x40 }, | |
349 | { AEB, 0x38 }, | |
350 | { VV, VV_HIGH_TH_SET(0x08) | VV_LOW_TH_SET(0x02) }, | |
351 | { 0x5c, 0x00 }, | |
352 | { 0x63, 0x00 }, | |
353 | { FLL, 0x22 }, | |
354 | { COM3, 0x38 | COM3_BAND_AUTO }, | |
355 | { REG5D, 0x55 }, | |
356 | { REG5E, 0x7d }, | |
357 | { REG5F, 0x7d }, | |
358 | { REG60, 0x55 }, | |
359 | { HISTO_LOW, 0x70 }, | |
360 | { HISTO_HIGH, 0x80 }, | |
361 | { 0x7c, 0x05 }, | |
362 | { 0x20, 0x80 }, | |
363 | { 0x28, 0x30 }, | |
364 | { 0x6c, 0x00 }, | |
365 | { 0x6d, 0x80 }, | |
366 | { 0x6e, 0x00 }, | |
367 | { 0x70, 0x02 }, | |
368 | { 0x71, 0x94 }, | |
369 | { 0x73, 0xc1 }, | |
370 | { 0x3d, 0x34 }, | |
371 | { COM7, COM7_RES_UXGA | COM7_ZOOM_EN }, | |
372 | { 0x5a, 0x57 }, | |
373 | { BD50, 0xbb }, | |
374 | { BD60, 0x9c }, | |
375 | { BANK_SEL, BANK_SEL_DSP }, | |
376 | { 0xe5, 0x7f }, | |
377 | { MC_BIST, MC_BIST_RESET | MC_BIST_BOOT_ROM_SEL }, | |
378 | { 0x41, 0x24 }, | |
379 | { RESET, RESET_JPEG | RESET_DVP }, | |
380 | { 0x76, 0xff }, | |
381 | { 0x33, 0xa0 }, | |
382 | { 0x42, 0x20 }, | |
383 | { 0x43, 0x18 }, | |
384 | { 0x4c, 0x00 }, | |
385 | { CTRL3, CTRL3_BPC_EN | CTRL3_WPC_EN | 0x10 }, | |
386 | { 0x88, 0x3f }, | |
387 | { 0xd7, 0x03 }, | |
388 | { 0xd9, 0x10 }, | |
389 | { R_DVP_SP , R_DVP_SP_AUTO_MODE | 0x2 }, | |
390 | { 0xc8, 0x08 }, | |
391 | { 0xc9, 0x80 }, | |
392 | { BPADDR, 0x00 }, | |
393 | { BPDATA, 0x00 }, | |
394 | { BPADDR, 0x03 }, | |
395 | { BPDATA, 0x48 }, | |
396 | { BPDATA, 0x48 }, | |
397 | { BPADDR, 0x08 }, | |
398 | { BPDATA, 0x20 }, | |
399 | { BPDATA, 0x10 }, | |
400 | { BPDATA, 0x0e }, | |
401 | { 0x90, 0x00 }, | |
402 | { 0x91, 0x0e }, | |
403 | { 0x91, 0x1a }, | |
404 | { 0x91, 0x31 }, | |
405 | { 0x91, 0x5a }, | |
406 | { 0x91, 0x69 }, | |
407 | { 0x91, 0x75 }, | |
408 | { 0x91, 0x7e }, | |
409 | { 0x91, 0x88 }, | |
410 | { 0x91, 0x8f }, | |
411 | { 0x91, 0x96 }, | |
412 | { 0x91, 0xa3 }, | |
413 | { 0x91, 0xaf }, | |
414 | { 0x91, 0xc4 }, | |
415 | { 0x91, 0xd7 }, | |
416 | { 0x91, 0xe8 }, | |
417 | { 0x91, 0x20 }, | |
418 | { 0x92, 0x00 }, | |
419 | { 0x93, 0x06 }, | |
420 | { 0x93, 0xe3 }, | |
421 | { 0x93, 0x03 }, | |
422 | { 0x93, 0x03 }, | |
423 | { 0x93, 0x00 }, | |
424 | { 0x93, 0x02 }, | |
425 | { 0x93, 0x00 }, | |
426 | { 0x93, 0x00 }, | |
427 | { 0x93, 0x00 }, | |
428 | { 0x93, 0x00 }, | |
429 | { 0x93, 0x00 }, | |
430 | { 0x93, 0x00 }, | |
431 | { 0x93, 0x00 }, | |
432 | { 0x96, 0x00 }, | |
433 | { 0x97, 0x08 }, | |
434 | { 0x97, 0x19 }, | |
435 | { 0x97, 0x02 }, | |
436 | { 0x97, 0x0c }, | |
437 | { 0x97, 0x24 }, | |
438 | { 0x97, 0x30 }, | |
439 | { 0x97, 0x28 }, | |
440 | { 0x97, 0x26 }, | |
441 | { 0x97, 0x02 }, | |
442 | { 0x97, 0x98 }, | |
443 | { 0x97, 0x80 }, | |
444 | { 0x97, 0x00 }, | |
445 | { 0x97, 0x00 }, | |
446 | { 0xa4, 0x00 }, | |
447 | { 0xa8, 0x00 }, | |
448 | { 0xc5, 0x11 }, | |
449 | { 0xc6, 0x51 }, | |
450 | { 0xbf, 0x80 }, | |
451 | { 0xc7, 0x10 }, | |
452 | { 0xb6, 0x66 }, | |
453 | { 0xb8, 0xA5 }, | |
454 | { 0xb7, 0x64 }, | |
455 | { 0xb9, 0x7C }, | |
456 | { 0xb3, 0xaf }, | |
457 | { 0xb4, 0x97 }, | |
458 | { 0xb5, 0xFF }, | |
459 | { 0xb0, 0xC5 }, | |
460 | { 0xb1, 0x94 }, | |
461 | { 0xb2, 0x0f }, | |
462 | { 0xc4, 0x5c }, | |
463 | { 0xa6, 0x00 }, | |
464 | { 0xa7, 0x20 }, | |
465 | { 0xa7, 0xd8 }, | |
466 | { 0xa7, 0x1b }, | |
467 | { 0xa7, 0x31 }, | |
468 | { 0xa7, 0x00 }, | |
469 | { 0xa7, 0x18 }, | |
470 | { 0xa7, 0x20 }, | |
471 | { 0xa7, 0xd8 }, | |
472 | { 0xa7, 0x19 }, | |
473 | { 0xa7, 0x31 }, | |
474 | { 0xa7, 0x00 }, | |
475 | { 0xa7, 0x18 }, | |
476 | { 0xa7, 0x20 }, | |
477 | { 0xa7, 0xd8 }, | |
478 | { 0xa7, 0x19 }, | |
479 | { 0xa7, 0x31 }, | |
480 | { 0xa7, 0x00 }, | |
481 | { 0xa7, 0x18 }, | |
482 | { 0x7f, 0x00 }, | |
483 | { 0xe5, 0x1f }, | |
484 | { 0xe1, 0x77 }, | |
485 | { 0xdd, 0x7f }, | |
486 | { CTRL0, CTRL0_YUV422 | CTRL0_YUV_EN | CTRL0_RGB_EN }, | |
487 | ENDMARKER, | |
488 | }; | |
489 | ||
490 | /* | |
491 | * Register settings for window size | |
492 | * The preamble, setup the internal DSP to input an UXGA (1600x1200) image. | |
493 | * Then the different zooming configurations will setup the output image size. | |
494 | */ | |
495 | static const struct regval_list ov2640_size_change_preamble_regs[] = { | |
496 | { BANK_SEL, BANK_SEL_DSP }, | |
497 | { RESET, RESET_DVP }, | |
498 | { HSIZE8, HSIZE8_SET(W_UXGA) }, | |
499 | { VSIZE8, VSIZE8_SET(H_UXGA) }, | |
500 | { CTRL2, CTRL2_DCW_EN | CTRL2_SDE_EN | | |
501 | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN }, | |
502 | { HSIZE, HSIZE_SET(W_UXGA) }, | |
503 | { VSIZE, VSIZE_SET(H_UXGA) }, | |
504 | { XOFFL, XOFFL_SET(0) }, | |
505 | { YOFFL, YOFFL_SET(0) }, | |
506 | { VHYX, VHYX_HSIZE_SET(W_UXGA) | VHYX_VSIZE_SET(H_UXGA) | | |
507 | VHYX_XOFF_SET(0) | VHYX_YOFF_SET(0)}, | |
508 | { TEST, TEST_HSIZE_SET(W_UXGA) }, | |
509 | ENDMARKER, | |
510 | }; | |
511 | ||
512 | #define PER_SIZE_REG_SEQ(x, y, v_div, h_div, pclk_div) \ | |
513 | { CTRLI, CTRLI_LP_DP | CTRLI_V_DIV_SET(v_div) | \ | |
514 | CTRLI_H_DIV_SET(h_div)}, \ | |
515 | { ZMOW, ZMOW_OUTW_SET(x) }, \ | |
516 | { ZMOH, ZMOH_OUTH_SET(y) }, \ | |
517 | { ZMHH, ZMHH_OUTW_SET(x) | ZMHH_OUTH_SET(y) }, \ | |
518 | { R_DVP_SP, pclk_div }, \ | |
519 | { RESET, 0x00} | |
520 | ||
521 | static const struct regval_list ov2640_qcif_regs[] = { | |
522 | PER_SIZE_REG_SEQ(W_QCIF, H_QCIF, 3, 3, 4), | |
523 | ENDMARKER, | |
524 | }; | |
525 | ||
526 | static const struct regval_list ov2640_qvga_regs[] = { | |
527 | PER_SIZE_REG_SEQ(W_QVGA, H_QVGA, 2, 2, 4), | |
528 | ENDMARKER, | |
529 | }; | |
530 | ||
531 | static const struct regval_list ov2640_cif_regs[] = { | |
532 | PER_SIZE_REG_SEQ(W_CIF, H_CIF, 2, 2, 8), | |
533 | ENDMARKER, | |
534 | }; | |
535 | ||
536 | static const struct regval_list ov2640_vga_regs[] = { | |
537 | PER_SIZE_REG_SEQ(W_VGA, H_VGA, 0, 0, 2), | |
538 | ENDMARKER, | |
539 | }; | |
540 | ||
541 | static const struct regval_list ov2640_svga_regs[] = { | |
542 | PER_SIZE_REG_SEQ(W_SVGA, H_SVGA, 1, 1, 2), | |
543 | ENDMARKER, | |
544 | }; | |
545 | ||
546 | static const struct regval_list ov2640_xga_regs[] = { | |
547 | PER_SIZE_REG_SEQ(W_XGA, H_XGA, 0, 0, 2), | |
548 | { CTRLI, 0x00}, | |
549 | ENDMARKER, | |
550 | }; | |
551 | ||
552 | static const struct regval_list ov2640_sxga_regs[] = { | |
553 | PER_SIZE_REG_SEQ(W_SXGA, H_SXGA, 0, 0, 2), | |
554 | { CTRLI, 0x00}, | |
555 | { R_DVP_SP, 2 | R_DVP_SP_AUTO_MODE }, | |
556 | ENDMARKER, | |
557 | }; | |
558 | ||
559 | static const struct regval_list ov2640_uxga_regs[] = { | |
560 | PER_SIZE_REG_SEQ(W_UXGA, H_UXGA, 0, 0, 0), | |
561 | { CTRLI, 0x00}, | |
562 | { R_DVP_SP, 0 | R_DVP_SP_AUTO_MODE }, | |
563 | ENDMARKER, | |
564 | }; | |
565 | ||
566 | #define OV2640_SIZE(n, w, h, r) \ | |
567 | {.name = n, .width = w , .height = h, .regs = r } | |
568 | ||
569 | static const struct ov2640_win_size ov2640_supported_win_sizes[] = { | |
570 | OV2640_SIZE("QCIF", W_QCIF, H_QCIF, ov2640_qcif_regs), | |
571 | OV2640_SIZE("QVGA", W_QVGA, H_QVGA, ov2640_qvga_regs), | |
572 | OV2640_SIZE("CIF", W_CIF, H_CIF, ov2640_cif_regs), | |
573 | OV2640_SIZE("VGA", W_VGA, H_VGA, ov2640_vga_regs), | |
574 | OV2640_SIZE("SVGA", W_SVGA, H_SVGA, ov2640_svga_regs), | |
575 | OV2640_SIZE("XGA", W_XGA, H_XGA, ov2640_xga_regs), | |
576 | OV2640_SIZE("SXGA", W_SXGA, H_SXGA, ov2640_sxga_regs), | |
577 | OV2640_SIZE("UXGA", W_UXGA, H_UXGA, ov2640_uxga_regs), | |
578 | }; | |
579 | ||
580 | /* | |
581 | * Register settings for pixel formats | |
582 | */ | |
583 | static const struct regval_list ov2640_format_change_preamble_regs[] = { | |
584 | { BANK_SEL, BANK_SEL_DSP }, | |
585 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
586 | ENDMARKER, | |
587 | }; | |
588 | ||
589 | static const struct regval_list ov2640_yuv422_regs[] = { | |
590 | { IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_YUV422 }, | |
591 | { 0xD7, 0x01 }, | |
592 | { 0x33, 0xa0 }, | |
593 | { 0xe1, 0x67 }, | |
594 | { RESET, 0x00 }, | |
595 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
596 | ENDMARKER, | |
597 | }; | |
598 | ||
599 | static const struct regval_list ov2640_rgb565_regs[] = { | |
600 | { IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_RGB565 }, | |
601 | { 0xd7, 0x03 }, | |
602 | { RESET, 0x00 }, | |
603 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
604 | ENDMARKER, | |
605 | }; | |
606 | ||
607 | static enum v4l2_mbus_pixelcode ov2640_codes[] = { | |
608 | V4L2_MBUS_FMT_UYVY8_2X8, | |
609 | V4L2_MBUS_FMT_RGB565_2X8_LE, | |
610 | }; | |
611 | ||
612 | /* | |
613 | * Supported controls | |
614 | */ | |
615 | static const struct v4l2_queryctrl ov2640_controls[] = { | |
616 | { | |
617 | .id = V4L2_CID_VFLIP, | |
618 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
619 | .name = "Flip Vertically", | |
620 | .minimum = 0, | |
621 | .maximum = 1, | |
622 | .step = 1, | |
623 | .default_value = 0, | |
624 | }, { | |
625 | .id = V4L2_CID_HFLIP, | |
626 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
627 | .name = "Flip Horizontally", | |
628 | .minimum = 0, | |
629 | .maximum = 1, | |
630 | .step = 1, | |
631 | .default_value = 0, | |
632 | }, | |
633 | }; | |
634 | ||
635 | /* | |
636 | * General functions | |
637 | */ | |
638 | static struct ov2640_priv *to_ov2640(const struct i2c_client *client) | |
639 | { | |
640 | return container_of(i2c_get_clientdata(client), struct ov2640_priv, | |
641 | subdev); | |
642 | } | |
643 | ||
644 | static int ov2640_write_array(struct i2c_client *client, | |
645 | const struct regval_list *vals) | |
646 | { | |
647 | int ret; | |
648 | ||
649 | while ((vals->reg_num != 0xff) || (vals->value != 0xff)) { | |
650 | ret = i2c_smbus_write_byte_data(client, | |
651 | vals->reg_num, vals->value); | |
652 | dev_vdbg(&client->dev, "array: 0x%02x, 0x%02x", | |
653 | vals->reg_num, vals->value); | |
654 | ||
655 | if (ret < 0) | |
656 | return ret; | |
657 | vals++; | |
658 | } | |
659 | return 0; | |
660 | } | |
661 | ||
662 | static int ov2640_mask_set(struct i2c_client *client, | |
663 | u8 reg, u8 mask, u8 set) | |
664 | { | |
665 | s32 val = i2c_smbus_read_byte_data(client, reg); | |
666 | if (val < 0) | |
667 | return val; | |
668 | ||
669 | val &= ~mask; | |
670 | val |= set & mask; | |
671 | ||
672 | dev_vdbg(&client->dev, "masks: 0x%02x, 0x%02x", reg, val); | |
673 | ||
674 | return i2c_smbus_write_byte_data(client, reg, val); | |
675 | } | |
676 | ||
677 | static int ov2640_reset(struct i2c_client *client) | |
678 | { | |
679 | int ret; | |
680 | const struct regval_list reset_seq[] = { | |
681 | {BANK_SEL, BANK_SEL_SENS}, | |
682 | {COM7, COM7_SRST}, | |
683 | ENDMARKER, | |
684 | }; | |
685 | ||
686 | ret = ov2640_write_array(client, reset_seq); | |
687 | if (ret) | |
688 | goto err; | |
689 | ||
690 | msleep(5); | |
691 | err: | |
692 | dev_dbg(&client->dev, "%s: (ret %d)", __func__, ret); | |
693 | return ret; | |
694 | } | |
695 | ||
696 | /* | |
697 | * soc_camera_ops functions | |
698 | */ | |
699 | static int ov2640_s_stream(struct v4l2_subdev *sd, int enable) | |
700 | { | |
701 | return 0; | |
702 | } | |
703 | ||
704 | static int ov2640_set_bus_param(struct soc_camera_device *icd, | |
705 | unsigned long flags) | |
706 | { | |
707 | struct soc_camera_link *icl = to_soc_camera_link(icd); | |
708 | unsigned long width_flag = flags & SOCAM_DATAWIDTH_MASK; | |
709 | ||
710 | /* Only one width bit may be set */ | |
711 | if (!is_power_of_2(width_flag)) | |
712 | return -EINVAL; | |
713 | ||
714 | if (icl->set_bus_param) | |
715 | return icl->set_bus_param(icl, width_flag); | |
716 | ||
717 | /* | |
718 | * Without board specific bus width settings we support only the | |
719 | * sensors native bus width witch are tested working | |
720 | */ | |
721 | if (width_flag & (SOCAM_DATAWIDTH_10 | SOCAM_DATAWIDTH_8)) | |
722 | return 0; | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | static unsigned long ov2640_query_bus_param(struct soc_camera_device *icd) | |
728 | { | |
729 | struct soc_camera_link *icl = to_soc_camera_link(icd); | |
730 | unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER | | |
731 | SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH | | |
732 | SOCAM_DATA_ACTIVE_HIGH; | |
733 | ||
734 | if (icl->query_bus_param) | |
735 | flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK; | |
736 | else | |
737 | flags |= SOCAM_DATAWIDTH_10; | |
738 | ||
739 | return soc_camera_apply_sensor_flags(icl, flags); | |
740 | } | |
741 | ||
742 | static int ov2640_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
743 | { | |
744 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
745 | struct ov2640_priv *priv = to_ov2640(client); | |
746 | ||
747 | switch (ctrl->id) { | |
748 | case V4L2_CID_VFLIP: | |
749 | ctrl->value = priv->flag_vflip; | |
750 | break; | |
751 | case V4L2_CID_HFLIP: | |
752 | ctrl->value = priv->flag_hflip; | |
753 | break; | |
754 | } | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static int ov2640_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
759 | { | |
760 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
761 | struct ov2640_priv *priv = to_ov2640(client); | |
762 | int ret = 0; | |
763 | u8 val; | |
764 | ||
765 | switch (ctrl->id) { | |
766 | case V4L2_CID_VFLIP: | |
767 | val = ctrl->value ? REG04_VFLIP_IMG : 0x00; | |
768 | priv->flag_vflip = ctrl->value ? 1 : 0; | |
769 | ret = ov2640_mask_set(client, REG04, REG04_VFLIP_IMG, val); | |
770 | break; | |
771 | case V4L2_CID_HFLIP: | |
772 | val = ctrl->value ? REG04_HFLIP_IMG : 0x00; | |
773 | priv->flag_hflip = ctrl->value ? 1 : 0; | |
774 | ret = ov2640_mask_set(client, REG04, REG04_HFLIP_IMG, val); | |
775 | break; | |
776 | } | |
777 | ||
778 | return ret; | |
779 | } | |
780 | ||
781 | static int ov2640_g_chip_ident(struct v4l2_subdev *sd, | |
782 | struct v4l2_dbg_chip_ident *id) | |
783 | { | |
784 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
785 | struct ov2640_priv *priv = to_ov2640(client); | |
786 | ||
787 | id->ident = priv->model; | |
788 | id->revision = 0; | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
793 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
794 | static int ov2640_g_register(struct v4l2_subdev *sd, | |
795 | struct v4l2_dbg_register *reg) | |
796 | { | |
797 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
798 | int ret; | |
799 | ||
800 | reg->size = 1; | |
801 | if (reg->reg > 0xff) | |
802 | return -EINVAL; | |
803 | ||
804 | ret = i2c_smbus_read_byte_data(client, reg->reg); | |
805 | if (ret < 0) | |
806 | return ret; | |
807 | ||
808 | reg->val = ret; | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
813 | static int ov2640_s_register(struct v4l2_subdev *sd, | |
814 | struct v4l2_dbg_register *reg) | |
815 | { | |
816 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
817 | ||
818 | if (reg->reg > 0xff || | |
819 | reg->val > 0xff) | |
820 | return -EINVAL; | |
821 | ||
822 | return i2c_smbus_write_byte_data(client, reg->reg, reg->val); | |
823 | } | |
824 | #endif | |
825 | ||
826 | /* Select the nearest higher resolution for capture */ | |
827 | static const struct ov2640_win_size *ov2640_select_win(u32 *width, u32 *height) | |
828 | { | |
829 | int i, default_size = ARRAY_SIZE(ov2640_supported_win_sizes) - 1; | |
830 | ||
831 | for (i = 0; i < ARRAY_SIZE(ov2640_supported_win_sizes); i++) { | |
832 | if (ov2640_supported_win_sizes[i].width >= *width && | |
833 | ov2640_supported_win_sizes[i].height >= *height) { | |
834 | *width = ov2640_supported_win_sizes[i].width; | |
835 | *height = ov2640_supported_win_sizes[i].height; | |
836 | return &ov2640_supported_win_sizes[i]; | |
837 | } | |
838 | } | |
839 | ||
840 | *width = ov2640_supported_win_sizes[default_size].width; | |
841 | *height = ov2640_supported_win_sizes[default_size].height; | |
842 | return &ov2640_supported_win_sizes[default_size]; | |
843 | } | |
844 | ||
845 | static int ov2640_set_params(struct i2c_client *client, u32 *width, u32 *height, | |
846 | enum v4l2_mbus_pixelcode code) | |
847 | { | |
848 | struct ov2640_priv *priv = to_ov2640(client); | |
849 | const struct regval_list *selected_cfmt_regs; | |
850 | int ret; | |
851 | ||
852 | /* select win */ | |
853 | priv->win = ov2640_select_win(width, height); | |
854 | ||
855 | /* select format */ | |
856 | priv->cfmt_code = 0; | |
857 | switch (code) { | |
858 | case V4L2_MBUS_FMT_RGB565_2X8_LE: | |
859 | dev_dbg(&client->dev, "%s: Selected cfmt RGB565", __func__); | |
860 | selected_cfmt_regs = ov2640_rgb565_regs; | |
861 | break; | |
862 | default: | |
863 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
864 | dev_dbg(&client->dev, "%s: Selected cfmt YUV422", __func__); | |
865 | selected_cfmt_regs = ov2640_yuv422_regs; | |
866 | } | |
867 | ||
868 | /* reset hardware */ | |
869 | ov2640_reset(client); | |
870 | ||
871 | /* initialize the sensor with default data */ | |
872 | dev_dbg(&client->dev, "%s: Init default", __func__); | |
873 | ret = ov2640_write_array(client, ov2640_init_regs); | |
874 | if (ret < 0) | |
875 | goto err; | |
876 | ||
877 | /* select preamble */ | |
878 | dev_dbg(&client->dev, "%s: Set size to %s", __func__, priv->win->name); | |
879 | ret = ov2640_write_array(client, ov2640_size_change_preamble_regs); | |
880 | if (ret < 0) | |
881 | goto err; | |
882 | ||
883 | /* set size win */ | |
884 | ret = ov2640_write_array(client, priv->win->regs); | |
885 | if (ret < 0) | |
886 | goto err; | |
887 | ||
888 | /* cfmt preamble */ | |
889 | dev_dbg(&client->dev, "%s: Set cfmt", __func__); | |
890 | ret = ov2640_write_array(client, ov2640_format_change_preamble_regs); | |
891 | if (ret < 0) | |
892 | goto err; | |
893 | ||
894 | /* set cfmt */ | |
895 | ret = ov2640_write_array(client, selected_cfmt_regs); | |
896 | if (ret < 0) | |
897 | goto err; | |
898 | ||
899 | priv->cfmt_code = code; | |
900 | *width = priv->win->width; | |
901 | *height = priv->win->height; | |
902 | ||
903 | return 0; | |
904 | ||
905 | err: | |
906 | dev_err(&client->dev, "%s: Error %d", __func__, ret); | |
907 | ov2640_reset(client); | |
908 | priv->win = NULL; | |
909 | ||
910 | return ret; | |
911 | } | |
912 | ||
913 | static int ov2640_g_fmt(struct v4l2_subdev *sd, | |
914 | struct v4l2_mbus_framefmt *mf) | |
915 | { | |
916 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
917 | struct ov2640_priv *priv = to_ov2640(client); | |
918 | ||
919 | if (!priv->win) { | |
920 | u32 width = W_SVGA, height = H_SVGA; | |
921 | int ret = ov2640_set_params(client, &width, &height, | |
922 | V4L2_MBUS_FMT_UYVY8_2X8); | |
923 | if (ret < 0) | |
924 | return ret; | |
925 | } | |
926 | ||
927 | mf->width = priv->win->width; | |
928 | mf->height = priv->win->height; | |
929 | mf->code = priv->cfmt_code; | |
930 | ||
931 | switch (mf->code) { | |
932 | case V4L2_MBUS_FMT_RGB565_2X8_LE: | |
933 | mf->colorspace = V4L2_COLORSPACE_SRGB; | |
934 | break; | |
935 | default: | |
936 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
937 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
938 | } | |
939 | mf->field = V4L2_FIELD_NONE; | |
940 | ||
941 | return 0; | |
942 | } | |
943 | ||
944 | static int ov2640_s_fmt(struct v4l2_subdev *sd, | |
945 | struct v4l2_mbus_framefmt *mf) | |
946 | { | |
947 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
948 | int ret; | |
949 | ||
950 | ||
951 | switch (mf->code) { | |
952 | case V4L2_MBUS_FMT_RGB565_2X8_LE: | |
953 | mf->colorspace = V4L2_COLORSPACE_SRGB; | |
954 | break; | |
955 | default: | |
956 | mf->code = V4L2_MBUS_FMT_UYVY8_2X8; | |
957 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
958 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
959 | } | |
960 | ||
961 | ret = ov2640_set_params(client, &mf->width, &mf->height, mf->code); | |
962 | ||
963 | return ret; | |
964 | } | |
965 | ||
966 | static int ov2640_try_fmt(struct v4l2_subdev *sd, | |
967 | struct v4l2_mbus_framefmt *mf) | |
968 | { | |
969 | const struct ov2640_win_size *win; | |
970 | ||
971 | /* | |
972 | * select suitable win | |
973 | */ | |
974 | win = ov2640_select_win(&mf->width, &mf->height); | |
975 | ||
976 | mf->field = V4L2_FIELD_NONE; | |
977 | ||
978 | switch (mf->code) { | |
979 | case V4L2_MBUS_FMT_RGB565_2X8_LE: | |
980 | mf->colorspace = V4L2_COLORSPACE_SRGB; | |
981 | break; | |
982 | default: | |
983 | mf->code = V4L2_MBUS_FMT_UYVY8_2X8; | |
984 | case V4L2_MBUS_FMT_UYVY8_2X8: | |
985 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
986 | } | |
987 | ||
988 | return 0; | |
989 | } | |
990 | ||
991 | static int ov2640_enum_fmt(struct v4l2_subdev *sd, unsigned int index, | |
992 | enum v4l2_mbus_pixelcode *code) | |
993 | { | |
994 | if (index >= ARRAY_SIZE(ov2640_codes)) | |
995 | return -EINVAL; | |
996 | ||
997 | *code = ov2640_codes[index]; | |
998 | return 0; | |
999 | } | |
1000 | ||
1001 | static int ov2640_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) | |
1002 | { | |
1003 | a->c.left = 0; | |
1004 | a->c.top = 0; | |
1005 | a->c.width = W_UXGA; | |
1006 | a->c.height = H_UXGA; | |
1007 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1008 | ||
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | static int ov2640_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) | |
1013 | { | |
1014 | a->bounds.left = 0; | |
1015 | a->bounds.top = 0; | |
1016 | a->bounds.width = W_UXGA; | |
1017 | a->bounds.height = H_UXGA; | |
1018 | a->defrect = a->bounds; | |
1019 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1020 | a->pixelaspect.numerator = 1; | |
1021 | a->pixelaspect.denominator = 1; | |
1022 | ||
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | static int ov2640_video_probe(struct soc_camera_device *icd, | |
1027 | struct i2c_client *client) | |
1028 | { | |
1029 | struct ov2640_priv *priv = to_ov2640(client); | |
1030 | u8 pid, ver, midh, midl; | |
1031 | const char *devname; | |
1032 | int ret; | |
1033 | ||
1034 | /* | |
1035 | * we must have a parent by now. And it cannot be a wrong one. | |
1036 | * So this entire test is completely redundant. | |
1037 | */ | |
1038 | if (!icd->dev.parent || | |
1039 | to_soc_camera_host(icd->dev.parent)->nr != icd->iface) { | |
1040 | dev_err(&client->dev, "Parent missing or invalid!\n"); | |
1041 | ret = -ENODEV; | |
1042 | goto err; | |
1043 | } | |
1044 | ||
1045 | /* | |
1046 | * check and show product ID and manufacturer ID | |
1047 | */ | |
1048 | i2c_smbus_write_byte_data(client, BANK_SEL, BANK_SEL_SENS); | |
1049 | pid = i2c_smbus_read_byte_data(client, PID); | |
1050 | ver = i2c_smbus_read_byte_data(client, VER); | |
1051 | midh = i2c_smbus_read_byte_data(client, MIDH); | |
1052 | midl = i2c_smbus_read_byte_data(client, MIDL); | |
1053 | ||
1054 | switch (VERSION(pid, ver)) { | |
1055 | case PID_OV2640: | |
1056 | devname = "ov2640"; | |
1057 | priv->model = V4L2_IDENT_OV2640; | |
1058 | break; | |
1059 | default: | |
1060 | dev_err(&client->dev, | |
1061 | "Product ID error %x:%x\n", pid, ver); | |
1062 | ret = -ENODEV; | |
1063 | goto err; | |
1064 | } | |
1065 | ||
1066 | dev_info(&client->dev, | |
1067 | "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", | |
1068 | devname, pid, ver, midh, midl); | |
1069 | ||
1070 | return 0; | |
1071 | ||
1072 | err: | |
1073 | return ret; | |
1074 | } | |
1075 | ||
1076 | static struct soc_camera_ops ov2640_ops = { | |
1077 | .set_bus_param = ov2640_set_bus_param, | |
1078 | .query_bus_param = ov2640_query_bus_param, | |
1079 | .controls = ov2640_controls, | |
1080 | .num_controls = ARRAY_SIZE(ov2640_controls), | |
1081 | }; | |
1082 | ||
1083 | static struct v4l2_subdev_core_ops ov2640_subdev_core_ops = { | |
1084 | .g_ctrl = ov2640_g_ctrl, | |
1085 | .s_ctrl = ov2640_s_ctrl, | |
1086 | .g_chip_ident = ov2640_g_chip_ident, | |
1087 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1088 | .g_register = ov2640_g_register, | |
1089 | .s_register = ov2640_s_register, | |
1090 | #endif | |
1091 | }; | |
1092 | ||
1093 | static struct v4l2_subdev_video_ops ov2640_subdev_video_ops = { | |
1094 | .s_stream = ov2640_s_stream, | |
1095 | .g_mbus_fmt = ov2640_g_fmt, | |
1096 | .s_mbus_fmt = ov2640_s_fmt, | |
1097 | .try_mbus_fmt = ov2640_try_fmt, | |
1098 | .cropcap = ov2640_cropcap, | |
1099 | .g_crop = ov2640_g_crop, | |
1100 | .enum_mbus_fmt = ov2640_enum_fmt, | |
1101 | }; | |
1102 | ||
1103 | static struct v4l2_subdev_ops ov2640_subdev_ops = { | |
1104 | .core = &ov2640_subdev_core_ops, | |
1105 | .video = &ov2640_subdev_video_ops, | |
1106 | }; | |
1107 | ||
1108 | /* | |
1109 | * i2c_driver functions | |
1110 | */ | |
1111 | static int ov2640_probe(struct i2c_client *client, | |
1112 | const struct i2c_device_id *did) | |
1113 | { | |
1114 | struct ov2640_priv *priv; | |
1115 | struct soc_camera_device *icd = client->dev.platform_data; | |
1116 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); | |
1117 | struct soc_camera_link *icl; | |
1118 | int ret; | |
1119 | ||
1120 | if (!icd) { | |
1121 | dev_err(&adapter->dev, "OV2640: missing soc-camera data!\n"); | |
1122 | return -EINVAL; | |
1123 | } | |
1124 | ||
1125 | icl = to_soc_camera_link(icd); | |
1126 | if (!icl) { | |
1127 | dev_err(&adapter->dev, | |
1128 | "OV2640: Missing platform_data for driver\n"); | |
1129 | return -EINVAL; | |
1130 | } | |
1131 | ||
1132 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1133 | dev_err(&adapter->dev, | |
1134 | "OV2640: I2C-Adapter doesn't support SMBUS\n"); | |
1135 | return -EIO; | |
1136 | } | |
1137 | ||
1138 | priv = kzalloc(sizeof(struct ov2640_priv), GFP_KERNEL); | |
1139 | if (!priv) { | |
1140 | dev_err(&adapter->dev, | |
1141 | "Failed to allocate memory for private data!\n"); | |
1142 | return -ENOMEM; | |
1143 | } | |
1144 | ||
1145 | priv->info = icl->priv; | |
1146 | ||
1147 | v4l2_i2c_subdev_init(&priv->subdev, client, &ov2640_subdev_ops); | |
1148 | ||
1149 | icd->ops = &ov2640_ops; | |
1150 | ||
1151 | ret = ov2640_video_probe(icd, client); | |
1152 | if (ret) { | |
1153 | icd->ops = NULL; | |
1154 | kfree(priv); | |
1155 | } else { | |
1156 | dev_info(&adapter->dev, "OV2640 Probed\n"); | |
1157 | } | |
1158 | ||
1159 | return ret; | |
1160 | } | |
1161 | ||
1162 | static int ov2640_remove(struct i2c_client *client) | |
1163 | { | |
1164 | struct ov2640_priv *priv = to_ov2640(client); | |
1165 | struct soc_camera_device *icd = client->dev.platform_data; | |
1166 | ||
1167 | icd->ops = NULL; | |
1168 | kfree(priv); | |
1169 | return 0; | |
1170 | } | |
1171 | ||
1172 | static const struct i2c_device_id ov2640_id[] = { | |
1173 | { "ov2640", 0 }, | |
1174 | { } | |
1175 | }; | |
1176 | MODULE_DEVICE_TABLE(i2c, ov2640_id); | |
1177 | ||
1178 | static struct i2c_driver ov2640_i2c_driver = { | |
1179 | .driver = { | |
1180 | .name = "ov2640", | |
1181 | }, | |
1182 | .probe = ov2640_probe, | |
1183 | .remove = ov2640_remove, | |
1184 | .id_table = ov2640_id, | |
1185 | }; | |
1186 | ||
1187 | /* | |
1188 | * Module functions | |
1189 | */ | |
1190 | static int __init ov2640_module_init(void) | |
1191 | { | |
1192 | return i2c_add_driver(&ov2640_i2c_driver); | |
1193 | } | |
1194 | ||
1195 | static void __exit ov2640_module_exit(void) | |
1196 | { | |
1197 | i2c_del_driver(&ov2640_i2c_driver); | |
1198 | } | |
1199 | ||
1200 | module_init(ov2640_module_init); | |
1201 | module_exit(ov2640_module_exit); | |
1202 | ||
1203 | MODULE_DESCRIPTION("SoC Camera driver for Omni Vision 2640 sensor"); | |
1204 | MODULE_AUTHOR("Alberto Panizzo"); | |
1205 | MODULE_LICENSE("GPL v2"); |