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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> | |
46796cfc | 19 | #include <linux/clk.h> |
3153ac9c AP |
20 | #include <linux/slab.h> |
21 | #include <linux/delay.h> | |
4e65172f | 22 | #include <linux/gpio.h> |
d3633329 | 23 | #include <linux/gpio/consumer.h> |
4e65172f | 24 | #include <linux/of_gpio.h> |
95d20109 | 25 | #include <linux/v4l2-mediabus.h> |
3153ac9c | 26 | #include <linux/videodev2.h> |
d463003b | 27 | |
34aa8879 | 28 | #include <media/v4l2-device.h> |
d463003b | 29 | #include <media/v4l2-subdev.h> |
f026671d | 30 | #include <media/v4l2-ctrls.h> |
650b1815 | 31 | #include <media/v4l2-image-sizes.h> |
3153ac9c AP |
32 | |
33 | #define VAL_SET(x, mask, rshift, lshift) \ | |
34 | ((((x) >> rshift) & mask) << lshift) | |
35 | /* | |
36 | * DSP registers | |
37 | * register offset for BANK_SEL == BANK_SEL_DSP | |
38 | */ | |
39 | #define R_BYPASS 0x05 /* Bypass DSP */ | |
40 | #define R_BYPASS_DSP_BYPAS 0x01 /* Bypass DSP, sensor out directly */ | |
41 | #define R_BYPASS_USE_DSP 0x00 /* Use the internal DSP */ | |
42 | #define QS 0x44 /* Quantization Scale Factor */ | |
43 | #define CTRLI 0x50 | |
44 | #define CTRLI_LP_DP 0x80 | |
45 | #define CTRLI_ROUND 0x40 | |
46 | #define CTRLI_V_DIV_SET(x) VAL_SET(x, 0x3, 0, 3) | |
47 | #define CTRLI_H_DIV_SET(x) VAL_SET(x, 0x3, 0, 0) | |
48 | #define HSIZE 0x51 /* H_SIZE[7:0] (real/4) */ | |
49 | #define HSIZE_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
50 | #define VSIZE 0x52 /* V_SIZE[7:0] (real/4) */ | |
51 | #define VSIZE_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
52 | #define XOFFL 0x53 /* OFFSET_X[7:0] */ | |
53 | #define XOFFL_SET(x) VAL_SET(x, 0xFF, 0, 0) | |
54 | #define YOFFL 0x54 /* OFFSET_Y[7:0] */ | |
55 | #define YOFFL_SET(x) VAL_SET(x, 0xFF, 0, 0) | |
56 | #define VHYX 0x55 /* Offset and size completion */ | |
57 | #define VHYX_VSIZE_SET(x) VAL_SET(x, 0x1, (8+2), 7) | |
58 | #define VHYX_HSIZE_SET(x) VAL_SET(x, 0x1, (8+2), 3) | |
59 | #define VHYX_YOFF_SET(x) VAL_SET(x, 0x3, 8, 4) | |
60 | #define VHYX_XOFF_SET(x) VAL_SET(x, 0x3, 8, 0) | |
61 | #define DPRP 0x56 | |
62 | #define TEST 0x57 /* Horizontal size completion */ | |
63 | #define TEST_HSIZE_SET(x) VAL_SET(x, 0x1, (9+2), 7) | |
64 | #define ZMOW 0x5A /* Zoom: Out Width OUTW[7:0] (real/4) */ | |
65 | #define ZMOW_OUTW_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
66 | #define ZMOH 0x5B /* Zoom: Out Height OUTH[7:0] (real/4) */ | |
67 | #define ZMOH_OUTH_SET(x) VAL_SET(x, 0xFF, 2, 0) | |
68 | #define ZMHH 0x5C /* Zoom: Speed and H&W completion */ | |
69 | #define ZMHH_ZSPEED_SET(x) VAL_SET(x, 0x0F, 0, 4) | |
70 | #define ZMHH_OUTH_SET(x) VAL_SET(x, 0x1, (8+2), 2) | |
71 | #define ZMHH_OUTW_SET(x) VAL_SET(x, 0x3, (8+2), 0) | |
72 | #define BPADDR 0x7C /* SDE Indirect Register Access: Address */ | |
73 | #define BPDATA 0x7D /* SDE Indirect Register Access: Data */ | |
74 | #define CTRL2 0x86 /* DSP Module enable 2 */ | |
75 | #define CTRL2_DCW_EN 0x20 | |
76 | #define CTRL2_SDE_EN 0x10 | |
77 | #define CTRL2_UV_ADJ_EN 0x08 | |
78 | #define CTRL2_UV_AVG_EN 0x04 | |
79 | #define CTRL2_CMX_EN 0x01 | |
80 | #define CTRL3 0x87 /* DSP Module enable 3 */ | |
81 | #define CTRL3_BPC_EN 0x80 | |
82 | #define CTRL3_WPC_EN 0x40 | |
83 | #define SIZEL 0x8C /* Image Size Completion */ | |
84 | #define SIZEL_HSIZE8_11_SET(x) VAL_SET(x, 0x1, 11, 6) | |
85 | #define SIZEL_HSIZE8_SET(x) VAL_SET(x, 0x7, 0, 3) | |
86 | #define SIZEL_VSIZE8_SET(x) VAL_SET(x, 0x7, 0, 0) | |
87 | #define HSIZE8 0xC0 /* Image Horizontal Size HSIZE[10:3] */ | |
88 | #define HSIZE8_SET(x) VAL_SET(x, 0xFF, 3, 0) | |
89 | #define VSIZE8 0xC1 /* Image Vertical Size VSIZE[10:3] */ | |
90 | #define VSIZE8_SET(x) VAL_SET(x, 0xFF, 3, 0) | |
91 | #define CTRL0 0xC2 /* DSP Module enable 0 */ | |
92 | #define CTRL0_AEC_EN 0x80 | |
93 | #define CTRL0_AEC_SEL 0x40 | |
94 | #define CTRL0_STAT_SEL 0x20 | |
95 | #define CTRL0_VFIRST 0x10 | |
96 | #define CTRL0_YUV422 0x08 | |
97 | #define CTRL0_YUV_EN 0x04 | |
98 | #define CTRL0_RGB_EN 0x02 | |
99 | #define CTRL0_RAW_EN 0x01 | |
100 | #define CTRL1 0xC3 /* DSP Module enable 1 */ | |
101 | #define CTRL1_CIP 0x80 | |
102 | #define CTRL1_DMY 0x40 | |
103 | #define CTRL1_RAW_GMA 0x20 | |
104 | #define CTRL1_DG 0x10 | |
105 | #define CTRL1_AWB 0x08 | |
106 | #define CTRL1_AWB_GAIN 0x04 | |
107 | #define CTRL1_LENC 0x02 | |
108 | #define CTRL1_PRE 0x01 | |
06dd8f77 FS |
109 | /* REG 0xC7 (unknown name): affects Auto White Balance (AWB) |
110 | * AWB_OFF 0x40 | |
111 | * AWB_SIMPLE 0x10 | |
112 | * AWB_ON 0x00 (Advanced AWB ?) */ | |
3153ac9c AP |
113 | #define R_DVP_SP 0xD3 /* DVP output speed control */ |
114 | #define R_DVP_SP_AUTO_MODE 0x80 | |
115 | #define R_DVP_SP_DVP_MASK 0x3F /* DVP PCLK = sysclk (48)/[6:0] (YUV0); | |
116 | * = sysclk (48)/(2*[6:0]) (RAW);*/ | |
117 | #define IMAGE_MODE 0xDA /* Image Output Format Select */ | |
118 | #define IMAGE_MODE_Y8_DVP_EN 0x40 | |
119 | #define IMAGE_MODE_JPEG_EN 0x10 | |
120 | #define IMAGE_MODE_YUV422 0x00 | |
121 | #define IMAGE_MODE_RAW10 0x04 /* (DVP) */ | |
122 | #define IMAGE_MODE_RGB565 0x08 | |
123 | #define IMAGE_MODE_HREF_VSYNC 0x02 /* HREF timing select in DVP JPEG output | |
124 | * mode (0 for HREF is same as sensor) */ | |
125 | #define IMAGE_MODE_LBYTE_FIRST 0x01 /* Byte swap enable for DVP | |
126 | * 1: Low byte first UYVY (C2[4] =0) | |
127 | * VYUY (C2[4] =1) | |
128 | * 0: High byte first YUYV (C2[4]=0) | |
129 | * YVYU (C2[4] = 1) */ | |
130 | #define RESET 0xE0 /* Reset */ | |
131 | #define RESET_MICROC 0x40 | |
132 | #define RESET_SCCB 0x20 | |
133 | #define RESET_JPEG 0x10 | |
134 | #define RESET_DVP 0x04 | |
135 | #define RESET_IPU 0x02 | |
136 | #define RESET_CIF 0x01 | |
137 | #define REGED 0xED /* Register ED */ | |
138 | #define REGED_CLK_OUT_DIS 0x10 | |
139 | #define MS_SP 0xF0 /* SCCB Master Speed */ | |
140 | #define SS_ID 0xF7 /* SCCB Slave ID */ | |
141 | #define SS_CTRL 0xF8 /* SCCB Slave Control */ | |
142 | #define SS_CTRL_ADD_AUTO_INC 0x20 | |
143 | #define SS_CTRL_EN 0x08 | |
144 | #define SS_CTRL_DELAY_CLK 0x04 | |
145 | #define SS_CTRL_ACC_EN 0x02 | |
146 | #define SS_CTRL_SEN_PASS_THR 0x01 | |
147 | #define MC_BIST 0xF9 /* Microcontroller misc register */ | |
148 | #define MC_BIST_RESET 0x80 /* Microcontroller Reset */ | |
149 | #define MC_BIST_BOOT_ROM_SEL 0x40 | |
150 | #define MC_BIST_12KB_SEL 0x20 | |
151 | #define MC_BIST_12KB_MASK 0x30 | |
152 | #define MC_BIST_512KB_SEL 0x08 | |
153 | #define MC_BIST_512KB_MASK 0x0C | |
154 | #define MC_BIST_BUSY_BIT_R 0x02 | |
155 | #define MC_BIST_MC_RES_ONE_SH_W 0x02 | |
156 | #define MC_BIST_LAUNCH 0x01 | |
157 | #define BANK_SEL 0xFF /* Register Bank Select */ | |
158 | #define BANK_SEL_DSP 0x00 | |
159 | #define BANK_SEL_SENS 0x01 | |
160 | ||
161 | /* | |
162 | * Sensor registers | |
163 | * register offset for BANK_SEL == BANK_SEL_SENS | |
164 | */ | |
165 | #define GAIN 0x00 /* AGC - Gain control gain setting */ | |
166 | #define COM1 0x03 /* Common control 1 */ | |
167 | #define COM1_1_DUMMY_FR 0x40 | |
168 | #define COM1_3_DUMMY_FR 0x80 | |
169 | #define COM1_7_DUMMY_FR 0xC0 | |
170 | #define COM1_VWIN_LSB_UXGA 0x0F | |
171 | #define COM1_VWIN_LSB_SVGA 0x0A | |
172 | #define COM1_VWIN_LSB_CIF 0x06 | |
173 | #define REG04 0x04 /* Register 04 */ | |
174 | #define REG04_DEF 0x20 /* Always set */ | |
175 | #define REG04_HFLIP_IMG 0x80 /* Horizontal mirror image ON/OFF */ | |
176 | #define REG04_VFLIP_IMG 0x40 /* Vertical flip image ON/OFF */ | |
177 | #define REG04_VREF_EN 0x10 | |
178 | #define REG04_HREF_EN 0x08 | |
179 | #define REG04_AEC_SET(x) VAL_SET(x, 0x3, 0, 0) | |
180 | #define REG08 0x08 /* Frame Exposure One-pin Control Pre-charge Row Num */ | |
181 | #define COM2 0x09 /* Common control 2 */ | |
182 | #define COM2_SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */ | |
183 | /* Output drive capability */ | |
184 | #define COM2_OCAP_Nx_SET(N) (((N) - 1) & 0x03) /* N = [1x .. 4x] */ | |
185 | #define PID 0x0A /* Product ID Number MSB */ | |
186 | #define VER 0x0B /* Product ID Number LSB */ | |
187 | #define COM3 0x0C /* Common control 3 */ | |
188 | #define COM3_BAND_50H 0x04 /* 0 For Banding at 60H */ | |
189 | #define COM3_BAND_AUTO 0x02 /* Auto Banding */ | |
190 | #define COM3_SING_FR_SNAPSH 0x01 /* 0 For enable live video output after the | |
191 | * snapshot sequence*/ | |
192 | #define AEC 0x10 /* AEC[9:2] Exposure Value */ | |
193 | #define CLKRC 0x11 /* Internal clock */ | |
194 | #define CLKRC_EN 0x80 | |
195 | #define CLKRC_DIV_SET(x) (((x) - 1) & 0x1F) /* CLK = XVCLK/(x) */ | |
196 | #define COM7 0x12 /* Common control 7 */ | |
197 | #define COM7_SRST 0x80 /* Initiates system reset. All registers are | |
198 | * set to factory default values after which | |
199 | * the chip resumes normal operation */ | |
200 | #define COM7_RES_UXGA 0x00 /* Resolution selectors for UXGA */ | |
201 | #define COM7_RES_SVGA 0x40 /* SVGA */ | |
202 | #define COM7_RES_CIF 0x20 /* CIF */ | |
203 | #define COM7_ZOOM_EN 0x04 /* Enable Zoom mode */ | |
204 | #define COM7_COLOR_BAR_TEST 0x02 /* Enable Color Bar Test Pattern */ | |
205 | #define COM8 0x13 /* Common control 8 */ | |
534dca98 | 206 | #define COM8_DEF 0xC0 |
3153ac9c AP |
207 | #define COM8_BNDF_EN 0x20 /* Banding filter ON/OFF */ |
208 | #define COM8_AGC_EN 0x04 /* AGC Auto/Manual control selection */ | |
209 | #define COM8_AEC_EN 0x01 /* Auto/Manual Exposure control */ | |
210 | #define COM9 0x14 /* Common control 9 | |
211 | * Automatic gain ceiling - maximum AGC value [7:5]*/ | |
212 | #define COM9_AGC_GAIN_2x 0x00 /* 000 : 2x */ | |
213 | #define COM9_AGC_GAIN_4x 0x20 /* 001 : 4x */ | |
214 | #define COM9_AGC_GAIN_8x 0x40 /* 010 : 8x */ | |
215 | #define COM9_AGC_GAIN_16x 0x60 /* 011 : 16x */ | |
216 | #define COM9_AGC_GAIN_32x 0x80 /* 100 : 32x */ | |
217 | #define COM9_AGC_GAIN_64x 0xA0 /* 101 : 64x */ | |
218 | #define COM9_AGC_GAIN_128x 0xC0 /* 110 : 128x */ | |
219 | #define COM10 0x15 /* Common control 10 */ | |
220 | #define COM10_PCLK_HREF 0x20 /* PCLK output qualified by HREF */ | |
221 | #define COM10_PCLK_RISE 0x10 /* Data is updated at the rising edge of | |
222 | * PCLK (user can latch data at the next | |
223 | * falling edge of PCLK). | |
224 | * 0 otherwise. */ | |
225 | #define COM10_HREF_INV 0x08 /* Invert HREF polarity: | |
226 | * HREF negative for valid data*/ | |
227 | #define COM10_VSINC_INV 0x02 /* Invert VSYNC polarity */ | |
228 | #define HSTART 0x17 /* Horizontal Window start MSB 8 bit */ | |
229 | #define HEND 0x18 /* Horizontal Window end MSB 8 bit */ | |
230 | #define VSTART 0x19 /* Vertical Window start MSB 8 bit */ | |
231 | #define VEND 0x1A /* Vertical Window end MSB 8 bit */ | |
232 | #define MIDH 0x1C /* Manufacturer ID byte - high */ | |
233 | #define MIDL 0x1D /* Manufacturer ID byte - low */ | |
234 | #define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */ | |
235 | #define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */ | |
236 | #define VV 0x26 /* AGC/AEC Fast mode operating region */ | |
237 | #define VV_HIGH_TH_SET(x) VAL_SET(x, 0xF, 0, 4) | |
238 | #define VV_LOW_TH_SET(x) VAL_SET(x, 0xF, 0, 0) | |
239 | #define REG2A 0x2A /* Dummy pixel insert MSB */ | |
240 | #define FRARL 0x2B /* Dummy pixel insert LSB */ | |
241 | #define ADDVFL 0x2D /* LSB of insert dummy lines in Vertical direction */ | |
242 | #define ADDVFH 0x2E /* MSB of insert dummy lines in Vertical direction */ | |
243 | #define YAVG 0x2F /* Y/G Channel Average value */ | |
244 | #define REG32 0x32 /* Common Control 32 */ | |
245 | #define REG32_PCLK_DIV_2 0x80 /* PCLK freq divided by 2 */ | |
246 | #define REG32_PCLK_DIV_4 0xC0 /* PCLK freq divided by 4 */ | |
247 | #define ARCOM2 0x34 /* Zoom: Horizontal start point */ | |
248 | #define REG45 0x45 /* Register 45 */ | |
249 | #define FLL 0x46 /* Frame Length Adjustment LSBs */ | |
250 | #define FLH 0x47 /* Frame Length Adjustment MSBs */ | |
251 | #define COM19 0x48 /* Zoom: Vertical start point */ | |
252 | #define ZOOMS 0x49 /* Zoom: Vertical start point */ | |
253 | #define COM22 0x4B /* Flash light control */ | |
254 | #define COM25 0x4E /* For Banding operations */ | |
d81638ea FS |
255 | #define COM25_50HZ_BANDING_AEC_MSBS_MASK 0xC0 /* 50Hz Bd. AEC 2 MSBs */ |
256 | #define COM25_60HZ_BANDING_AEC_MSBS_MASK 0x30 /* 60Hz Bd. AEC 2 MSBs */ | |
257 | #define COM25_50HZ_BANDING_AEC_MSBS_SET(x) VAL_SET(x, 0x3, 8, 6) | |
258 | #define COM25_60HZ_BANDING_AEC_MSBS_SET(x) VAL_SET(x, 0x3, 8, 4) | |
3153ac9c | 259 | #define BD50 0x4F /* 50Hz Banding AEC 8 LSBs */ |
d81638ea | 260 | #define BD50_50HZ_BANDING_AEC_LSBS_SET(x) VAL_SET(x, 0xFF, 0, 0) |
3153ac9c | 261 | #define BD60 0x50 /* 60Hz Banding AEC 8 LSBs */ |
d81638ea FS |
262 | #define BD60_60HZ_BANDING_AEC_LSBS_SET(x) VAL_SET(x, 0xFF, 0, 0) |
263 | #define REG5A 0x5A /* 50/60Hz Banding Maximum AEC Step */ | |
264 | #define BD50_MAX_AEC_STEP_MASK 0xF0 /* 50Hz Banding Max. AEC Step */ | |
265 | #define BD60_MAX_AEC_STEP_MASK 0x0F /* 60Hz Banding Max. AEC Step */ | |
266 | #define BD50_MAX_AEC_STEP_SET(x) VAL_SET((x - 1), 0x0F, 0, 4) | |
267 | #define BD60_MAX_AEC_STEP_SET(x) VAL_SET((x - 1), 0x0F, 0, 0) | |
3153ac9c AP |
268 | #define REG5D 0x5D /* AVGsel[7:0], 16-zone average weight option */ |
269 | #define REG5E 0x5E /* AVGsel[15:8], 16-zone average weight option */ | |
270 | #define REG5F 0x5F /* AVGsel[23:16], 16-zone average weight option */ | |
271 | #define REG60 0x60 /* AVGsel[31:24], 16-zone average weight option */ | |
272 | #define HISTO_LOW 0x61 /* Histogram Algorithm Low Level */ | |
273 | #define HISTO_HIGH 0x62 /* Histogram Algorithm High Level */ | |
274 | ||
275 | /* | |
276 | * ID | |
277 | */ | |
278 | #define MANUFACTURER_ID 0x7FA2 | |
279 | #define PID_OV2640 0x2642 | |
280 | #define VERSION(pid, ver) ((pid << 8) | (ver & 0xFF)) | |
281 | ||
282 | /* | |
283 | * Struct | |
284 | */ | |
285 | struct regval_list { | |
286 | u8 reg_num; | |
287 | u8 value; | |
288 | }; | |
289 | ||
3153ac9c AP |
290 | struct ov2640_win_size { |
291 | char *name; | |
650b1815 JW |
292 | u32 width; |
293 | u32 height; | |
3153ac9c AP |
294 | const struct regval_list *regs; |
295 | }; | |
296 | ||
297 | ||
298 | struct ov2640_priv { | |
299 | struct v4l2_subdev subdev; | |
ff0e9c1d HV |
300 | #if defined(CONFIG_MEDIA_CONTROLLER) |
301 | struct media_pad pad; | |
302 | #endif | |
f026671d | 303 | struct v4l2_ctrl_handler hdl; |
f5fe58fd | 304 | u32 cfmt_code; |
46796cfc | 305 | struct clk *clk; |
3153ac9c | 306 | const struct ov2640_win_size *win; |
4e65172f | 307 | |
4e65172f JW |
308 | struct gpio_desc *resetb_gpio; |
309 | struct gpio_desc *pwdn_gpio; | |
3153ac9c AP |
310 | }; |
311 | ||
312 | /* | |
313 | * Registers settings | |
314 | */ | |
315 | ||
316 | #define ENDMARKER { 0xff, 0xff } | |
317 | ||
318 | static const struct regval_list ov2640_init_regs[] = { | |
319 | { BANK_SEL, BANK_SEL_DSP }, | |
320 | { 0x2c, 0xff }, | |
321 | { 0x2e, 0xdf }, | |
322 | { BANK_SEL, BANK_SEL_SENS }, | |
323 | { 0x3c, 0x32 }, | |
534dca98 FS |
324 | { CLKRC, CLKRC_DIV_SET(1) }, |
325 | { COM2, COM2_OCAP_Nx_SET(3) }, | |
326 | { REG04, REG04_DEF | REG04_HREF_EN }, | |
327 | { COM8, COM8_DEF | COM8_BNDF_EN | COM8_AGC_EN | COM8_AEC_EN }, | |
328 | { COM9, COM9_AGC_GAIN_8x | 0x08}, | |
3153ac9c AP |
329 | { 0x2c, 0x0c }, |
330 | { 0x33, 0x78 }, | |
331 | { 0x3a, 0x33 }, | |
332 | { 0x3b, 0xfb }, | |
333 | { 0x3e, 0x00 }, | |
334 | { 0x43, 0x11 }, | |
335 | { 0x16, 0x10 }, | |
336 | { 0x39, 0x02 }, | |
337 | { 0x35, 0x88 }, | |
338 | { 0x22, 0x0a }, | |
339 | { 0x37, 0x40 }, | |
340 | { 0x23, 0x00 }, | |
341 | { ARCOM2, 0xa0 }, | |
342 | { 0x06, 0x02 }, | |
343 | { 0x06, 0x88 }, | |
344 | { 0x07, 0xc0 }, | |
345 | { 0x0d, 0xb7 }, | |
346 | { 0x0e, 0x01 }, | |
347 | { 0x4c, 0x00 }, | |
348 | { 0x4a, 0x81 }, | |
349 | { 0x21, 0x99 }, | |
350 | { AEW, 0x40 }, | |
351 | { AEB, 0x38 }, | |
352 | { VV, VV_HIGH_TH_SET(0x08) | VV_LOW_TH_SET(0x02) }, | |
353 | { 0x5c, 0x00 }, | |
354 | { 0x63, 0x00 }, | |
355 | { FLL, 0x22 }, | |
356 | { COM3, 0x38 | COM3_BAND_AUTO }, | |
357 | { REG5D, 0x55 }, | |
358 | { REG5E, 0x7d }, | |
359 | { REG5F, 0x7d }, | |
360 | { REG60, 0x55 }, | |
361 | { HISTO_LOW, 0x70 }, | |
362 | { HISTO_HIGH, 0x80 }, | |
363 | { 0x7c, 0x05 }, | |
364 | { 0x20, 0x80 }, | |
365 | { 0x28, 0x30 }, | |
366 | { 0x6c, 0x00 }, | |
367 | { 0x6d, 0x80 }, | |
368 | { 0x6e, 0x00 }, | |
369 | { 0x70, 0x02 }, | |
370 | { 0x71, 0x94 }, | |
371 | { 0x73, 0xc1 }, | |
372 | { 0x3d, 0x34 }, | |
534dca98 | 373 | { COM7, COM7_RES_UXGA | COM7_ZOOM_EN }, |
d81638ea FS |
374 | { REG5A, BD50_MAX_AEC_STEP_SET(6) |
375 | | BD60_MAX_AEC_STEP_SET(8) }, /* 0x57 */ | |
376 | { COM25, COM25_50HZ_BANDING_AEC_MSBS_SET(0x0bb) | |
377 | | COM25_60HZ_BANDING_AEC_MSBS_SET(0x09c) }, /* 0x00 */ | |
378 | { BD50, BD50_50HZ_BANDING_AEC_LSBS_SET(0x0bb) }, /* 0xbb */ | |
379 | { BD60, BD60_60HZ_BANDING_AEC_LSBS_SET(0x09c) }, /* 0x9c */ | |
534dca98 | 380 | { BANK_SEL, BANK_SEL_DSP }, |
3153ac9c | 381 | { 0xe5, 0x7f }, |
534dca98 | 382 | { MC_BIST, MC_BIST_RESET | MC_BIST_BOOT_ROM_SEL }, |
3153ac9c | 383 | { 0x41, 0x24 }, |
534dca98 | 384 | { RESET, RESET_JPEG | RESET_DVP }, |
3153ac9c AP |
385 | { 0x76, 0xff }, |
386 | { 0x33, 0xa0 }, | |
387 | { 0x42, 0x20 }, | |
388 | { 0x43, 0x18 }, | |
389 | { 0x4c, 0x00 }, | |
534dca98 | 390 | { CTRL3, CTRL3_BPC_EN | CTRL3_WPC_EN | 0x10 }, |
3153ac9c AP |
391 | { 0x88, 0x3f }, |
392 | { 0xd7, 0x03 }, | |
393 | { 0xd9, 0x10 }, | |
534dca98 | 394 | { R_DVP_SP, R_DVP_SP_AUTO_MODE | 0x2 }, |
3153ac9c AP |
395 | { 0xc8, 0x08 }, |
396 | { 0xc9, 0x80 }, | |
397 | { BPADDR, 0x00 }, | |
398 | { BPDATA, 0x00 }, | |
399 | { BPADDR, 0x03 }, | |
400 | { BPDATA, 0x48 }, | |
401 | { BPDATA, 0x48 }, | |
402 | { BPADDR, 0x08 }, | |
403 | { BPDATA, 0x20 }, | |
404 | { BPDATA, 0x10 }, | |
405 | { BPDATA, 0x0e }, | |
406 | { 0x90, 0x00 }, | |
407 | { 0x91, 0x0e }, | |
408 | { 0x91, 0x1a }, | |
409 | { 0x91, 0x31 }, | |
410 | { 0x91, 0x5a }, | |
411 | { 0x91, 0x69 }, | |
412 | { 0x91, 0x75 }, | |
413 | { 0x91, 0x7e }, | |
414 | { 0x91, 0x88 }, | |
415 | { 0x91, 0x8f }, | |
416 | { 0x91, 0x96 }, | |
417 | { 0x91, 0xa3 }, | |
418 | { 0x91, 0xaf }, | |
419 | { 0x91, 0xc4 }, | |
420 | { 0x91, 0xd7 }, | |
421 | { 0x91, 0xe8 }, | |
422 | { 0x91, 0x20 }, | |
423 | { 0x92, 0x00 }, | |
424 | { 0x93, 0x06 }, | |
425 | { 0x93, 0xe3 }, | |
426 | { 0x93, 0x03 }, | |
427 | { 0x93, 0x03 }, | |
428 | { 0x93, 0x00 }, | |
429 | { 0x93, 0x02 }, | |
430 | { 0x93, 0x00 }, | |
431 | { 0x93, 0x00 }, | |
432 | { 0x93, 0x00 }, | |
433 | { 0x93, 0x00 }, | |
434 | { 0x93, 0x00 }, | |
435 | { 0x93, 0x00 }, | |
436 | { 0x93, 0x00 }, | |
437 | { 0x96, 0x00 }, | |
438 | { 0x97, 0x08 }, | |
439 | { 0x97, 0x19 }, | |
440 | { 0x97, 0x02 }, | |
441 | { 0x97, 0x0c }, | |
442 | { 0x97, 0x24 }, | |
443 | { 0x97, 0x30 }, | |
444 | { 0x97, 0x28 }, | |
445 | { 0x97, 0x26 }, | |
446 | { 0x97, 0x02 }, | |
447 | { 0x97, 0x98 }, | |
448 | { 0x97, 0x80 }, | |
449 | { 0x97, 0x00 }, | |
450 | { 0x97, 0x00 }, | |
451 | { 0xa4, 0x00 }, | |
452 | { 0xa8, 0x00 }, | |
453 | { 0xc5, 0x11 }, | |
454 | { 0xc6, 0x51 }, | |
455 | { 0xbf, 0x80 }, | |
06dd8f77 | 456 | { 0xc7, 0x10 }, /* simple AWB */ |
3153ac9c AP |
457 | { 0xb6, 0x66 }, |
458 | { 0xb8, 0xA5 }, | |
459 | { 0xb7, 0x64 }, | |
460 | { 0xb9, 0x7C }, | |
461 | { 0xb3, 0xaf }, | |
462 | { 0xb4, 0x97 }, | |
463 | { 0xb5, 0xFF }, | |
464 | { 0xb0, 0xC5 }, | |
465 | { 0xb1, 0x94 }, | |
466 | { 0xb2, 0x0f }, | |
467 | { 0xc4, 0x5c }, | |
468 | { 0xa6, 0x00 }, | |
469 | { 0xa7, 0x20 }, | |
470 | { 0xa7, 0xd8 }, | |
471 | { 0xa7, 0x1b }, | |
472 | { 0xa7, 0x31 }, | |
473 | { 0xa7, 0x00 }, | |
474 | { 0xa7, 0x18 }, | |
475 | { 0xa7, 0x20 }, | |
476 | { 0xa7, 0xd8 }, | |
477 | { 0xa7, 0x19 }, | |
478 | { 0xa7, 0x31 }, | |
479 | { 0xa7, 0x00 }, | |
480 | { 0xa7, 0x18 }, | |
481 | { 0xa7, 0x20 }, | |
482 | { 0xa7, 0xd8 }, | |
483 | { 0xa7, 0x19 }, | |
484 | { 0xa7, 0x31 }, | |
485 | { 0xa7, 0x00 }, | |
486 | { 0xa7, 0x18 }, | |
487 | { 0x7f, 0x00 }, | |
488 | { 0xe5, 0x1f }, | |
489 | { 0xe1, 0x77 }, | |
490 | { 0xdd, 0x7f }, | |
491 | { CTRL0, CTRL0_YUV422 | CTRL0_YUV_EN | CTRL0_RGB_EN }, | |
492 | ENDMARKER, | |
493 | }; | |
494 | ||
495 | /* | |
496 | * Register settings for window size | |
497 | * The preamble, setup the internal DSP to input an UXGA (1600x1200) image. | |
498 | * Then the different zooming configurations will setup the output image size. | |
499 | */ | |
500 | static const struct regval_list ov2640_size_change_preamble_regs[] = { | |
501 | { BANK_SEL, BANK_SEL_DSP }, | |
502 | { RESET, RESET_DVP }, | |
2f7711b2 FS |
503 | { SIZEL, SIZEL_HSIZE8_11_SET(UXGA_WIDTH) | |
504 | SIZEL_HSIZE8_SET(UXGA_WIDTH) | | |
505 | SIZEL_VSIZE8_SET(UXGA_HEIGHT) }, | |
650b1815 JW |
506 | { HSIZE8, HSIZE8_SET(UXGA_WIDTH) }, |
507 | { VSIZE8, VSIZE8_SET(UXGA_HEIGHT) }, | |
3153ac9c AP |
508 | { CTRL2, CTRL2_DCW_EN | CTRL2_SDE_EN | |
509 | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN }, | |
650b1815 JW |
510 | { HSIZE, HSIZE_SET(UXGA_WIDTH) }, |
511 | { VSIZE, VSIZE_SET(UXGA_HEIGHT) }, | |
3153ac9c AP |
512 | { XOFFL, XOFFL_SET(0) }, |
513 | { YOFFL, YOFFL_SET(0) }, | |
650b1815 | 514 | { VHYX, VHYX_HSIZE_SET(UXGA_WIDTH) | VHYX_VSIZE_SET(UXGA_HEIGHT) | |
3153ac9c | 515 | VHYX_XOFF_SET(0) | VHYX_YOFF_SET(0)}, |
650b1815 | 516 | { TEST, TEST_HSIZE_SET(UXGA_WIDTH) }, |
3153ac9c AP |
517 | ENDMARKER, |
518 | }; | |
519 | ||
520 | #define PER_SIZE_REG_SEQ(x, y, v_div, h_div, pclk_div) \ | |
521 | { CTRLI, CTRLI_LP_DP | CTRLI_V_DIV_SET(v_div) | \ | |
522 | CTRLI_H_DIV_SET(h_div)}, \ | |
523 | { ZMOW, ZMOW_OUTW_SET(x) }, \ | |
524 | { ZMOH, ZMOH_OUTH_SET(y) }, \ | |
525 | { ZMHH, ZMHH_OUTW_SET(x) | ZMHH_OUTH_SET(y) }, \ | |
526 | { R_DVP_SP, pclk_div }, \ | |
527 | { RESET, 0x00} | |
528 | ||
529 | static const struct regval_list ov2640_qcif_regs[] = { | |
650b1815 | 530 | PER_SIZE_REG_SEQ(QCIF_WIDTH, QCIF_HEIGHT, 3, 3, 4), |
3153ac9c AP |
531 | ENDMARKER, |
532 | }; | |
533 | ||
534 | static const struct regval_list ov2640_qvga_regs[] = { | |
650b1815 | 535 | PER_SIZE_REG_SEQ(QVGA_WIDTH, QVGA_HEIGHT, 2, 2, 4), |
3153ac9c AP |
536 | ENDMARKER, |
537 | }; | |
538 | ||
539 | static const struct regval_list ov2640_cif_regs[] = { | |
650b1815 | 540 | PER_SIZE_REG_SEQ(CIF_WIDTH, CIF_HEIGHT, 2, 2, 8), |
3153ac9c AP |
541 | ENDMARKER, |
542 | }; | |
543 | ||
544 | static const struct regval_list ov2640_vga_regs[] = { | |
650b1815 | 545 | PER_SIZE_REG_SEQ(VGA_WIDTH, VGA_HEIGHT, 0, 0, 2), |
3153ac9c AP |
546 | ENDMARKER, |
547 | }; | |
548 | ||
549 | static const struct regval_list ov2640_svga_regs[] = { | |
650b1815 | 550 | PER_SIZE_REG_SEQ(SVGA_WIDTH, SVGA_HEIGHT, 1, 1, 2), |
3153ac9c AP |
551 | ENDMARKER, |
552 | }; | |
553 | ||
554 | static const struct regval_list ov2640_xga_regs[] = { | |
650b1815 | 555 | PER_SIZE_REG_SEQ(XGA_WIDTH, XGA_HEIGHT, 0, 0, 2), |
3153ac9c AP |
556 | { CTRLI, 0x00}, |
557 | ENDMARKER, | |
558 | }; | |
559 | ||
560 | static const struct regval_list ov2640_sxga_regs[] = { | |
650b1815 | 561 | PER_SIZE_REG_SEQ(SXGA_WIDTH, SXGA_HEIGHT, 0, 0, 2), |
3153ac9c AP |
562 | { CTRLI, 0x00}, |
563 | { R_DVP_SP, 2 | R_DVP_SP_AUTO_MODE }, | |
564 | ENDMARKER, | |
565 | }; | |
566 | ||
567 | static const struct regval_list ov2640_uxga_regs[] = { | |
650b1815 | 568 | PER_SIZE_REG_SEQ(UXGA_WIDTH, UXGA_HEIGHT, 0, 0, 0), |
3153ac9c AP |
569 | { CTRLI, 0x00}, |
570 | { R_DVP_SP, 0 | R_DVP_SP_AUTO_MODE }, | |
571 | ENDMARKER, | |
572 | }; | |
573 | ||
574 | #define OV2640_SIZE(n, w, h, r) \ | |
575 | {.name = n, .width = w , .height = h, .regs = r } | |
576 | ||
577 | static const struct ov2640_win_size ov2640_supported_win_sizes[] = { | |
650b1815 JW |
578 | OV2640_SIZE("QCIF", QCIF_WIDTH, QCIF_HEIGHT, ov2640_qcif_regs), |
579 | OV2640_SIZE("QVGA", QVGA_WIDTH, QVGA_HEIGHT, ov2640_qvga_regs), | |
580 | OV2640_SIZE("CIF", CIF_WIDTH, CIF_HEIGHT, ov2640_cif_regs), | |
581 | OV2640_SIZE("VGA", VGA_WIDTH, VGA_HEIGHT, ov2640_vga_regs), | |
582 | OV2640_SIZE("SVGA", SVGA_WIDTH, SVGA_HEIGHT, ov2640_svga_regs), | |
583 | OV2640_SIZE("XGA", XGA_WIDTH, XGA_HEIGHT, ov2640_xga_regs), | |
584 | OV2640_SIZE("SXGA", SXGA_WIDTH, SXGA_HEIGHT, ov2640_sxga_regs), | |
585 | OV2640_SIZE("UXGA", UXGA_WIDTH, UXGA_HEIGHT, ov2640_uxga_regs), | |
3153ac9c AP |
586 | }; |
587 | ||
588 | /* | |
589 | * Register settings for pixel formats | |
590 | */ | |
591 | static const struct regval_list ov2640_format_change_preamble_regs[] = { | |
592 | { BANK_SEL, BANK_SEL_DSP }, | |
593 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
594 | ENDMARKER, | |
595 | }; | |
596 | ||
d1a49eac FS |
597 | static const struct regval_list ov2640_yuyv_regs[] = { |
598 | { IMAGE_MODE, IMAGE_MODE_YUV422 }, | |
599 | { 0xd7, 0x03 }, | |
600 | { 0x33, 0xa0 }, | |
601 | { 0xe5, 0x1f }, | |
602 | { 0xe1, 0x67 }, | |
603 | { RESET, 0x00 }, | |
604 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
605 | ENDMARKER, | |
606 | }; | |
607 | ||
608 | static const struct regval_list ov2640_uyvy_regs[] = { | |
3153ac9c | 609 | { IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_YUV422 }, |
d1a49eac | 610 | { 0xd7, 0x01 }, |
3153ac9c AP |
611 | { 0x33, 0xa0 }, |
612 | { 0xe1, 0x67 }, | |
613 | { RESET, 0x00 }, | |
614 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
615 | ENDMARKER, | |
616 | }; | |
617 | ||
d1a49eac FS |
618 | static const struct regval_list ov2640_rgb565_be_regs[] = { |
619 | { IMAGE_MODE, IMAGE_MODE_RGB565 }, | |
620 | { 0xd7, 0x03 }, | |
621 | { RESET, 0x00 }, | |
622 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
623 | ENDMARKER, | |
624 | }; | |
625 | ||
626 | static const struct regval_list ov2640_rgb565_le_regs[] = { | |
3153ac9c AP |
627 | { IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_RGB565 }, |
628 | { 0xd7, 0x03 }, | |
629 | { RESET, 0x00 }, | |
630 | { R_BYPASS, R_BYPASS_USE_DSP }, | |
631 | ENDMARKER, | |
632 | }; | |
633 | ||
f5fe58fd BB |
634 | static u32 ov2640_codes[] = { |
635 | MEDIA_BUS_FMT_YUYV8_2X8, | |
636 | MEDIA_BUS_FMT_UYVY8_2X8, | |
d72b196f FS |
637 | MEDIA_BUS_FMT_YVYU8_2X8, |
638 | MEDIA_BUS_FMT_VYUY8_2X8, | |
f5fe58fd BB |
639 | MEDIA_BUS_FMT_RGB565_2X8_BE, |
640 | MEDIA_BUS_FMT_RGB565_2X8_LE, | |
3153ac9c AP |
641 | }; |
642 | ||
3153ac9c AP |
643 | /* |
644 | * General functions | |
645 | */ | |
646 | static struct ov2640_priv *to_ov2640(const struct i2c_client *client) | |
647 | { | |
648 | return container_of(i2c_get_clientdata(client), struct ov2640_priv, | |
649 | subdev); | |
650 | } | |
651 | ||
652 | static int ov2640_write_array(struct i2c_client *client, | |
653 | const struct regval_list *vals) | |
654 | { | |
655 | int ret; | |
656 | ||
657 | while ((vals->reg_num != 0xff) || (vals->value != 0xff)) { | |
658 | ret = i2c_smbus_write_byte_data(client, | |
659 | vals->reg_num, vals->value); | |
660 | dev_vdbg(&client->dev, "array: 0x%02x, 0x%02x", | |
661 | vals->reg_num, vals->value); | |
662 | ||
663 | if (ret < 0) | |
664 | return ret; | |
665 | vals++; | |
666 | } | |
667 | return 0; | |
668 | } | |
669 | ||
670 | static int ov2640_mask_set(struct i2c_client *client, | |
671 | u8 reg, u8 mask, u8 set) | |
672 | { | |
673 | s32 val = i2c_smbus_read_byte_data(client, reg); | |
674 | if (val < 0) | |
675 | return val; | |
676 | ||
677 | val &= ~mask; | |
678 | val |= set & mask; | |
679 | ||
680 | dev_vdbg(&client->dev, "masks: 0x%02x, 0x%02x", reg, val); | |
681 | ||
682 | return i2c_smbus_write_byte_data(client, reg, val); | |
683 | } | |
684 | ||
685 | static int ov2640_reset(struct i2c_client *client) | |
686 | { | |
687 | int ret; | |
91c158dd | 688 | static const struct regval_list reset_seq[] = { |
3153ac9c AP |
689 | {BANK_SEL, BANK_SEL_SENS}, |
690 | {COM7, COM7_SRST}, | |
691 | ENDMARKER, | |
692 | }; | |
693 | ||
694 | ret = ov2640_write_array(client, reset_seq); | |
695 | if (ret) | |
696 | goto err; | |
697 | ||
698 | msleep(5); | |
699 | err: | |
700 | dev_dbg(&client->dev, "%s: (ret %d)", __func__, ret); | |
701 | return ret; | |
702 | } | |
703 | ||
704 | /* | |
34aa8879 | 705 | * functions |
3153ac9c | 706 | */ |
f026671d | 707 | static int ov2640_s_ctrl(struct v4l2_ctrl *ctrl) |
3153ac9c | 708 | { |
f026671d HV |
709 | struct v4l2_subdev *sd = |
710 | &container_of(ctrl->handler, struct ov2640_priv, hdl)->subdev; | |
3153ac9c | 711 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
3153ac9c | 712 | u8 val; |
a52eb6c0 FS |
713 | int ret; |
714 | ||
715 | ret = i2c_smbus_write_byte_data(client, BANK_SEL, BANK_SEL_SENS); | |
716 | if (ret < 0) | |
717 | return ret; | |
3153ac9c AP |
718 | |
719 | switch (ctrl->id) { | |
720 | case V4L2_CID_VFLIP: | |
7f140fc2 FS |
721 | val = ctrl->val ? REG04_VFLIP_IMG | REG04_VREF_EN : 0x00; |
722 | return ov2640_mask_set(client, REG04, | |
723 | REG04_VFLIP_IMG | REG04_VREF_EN, val); | |
724 | /* NOTE: REG04_VREF_EN: 1 line shift / even/odd line swap */ | |
3153ac9c | 725 | case V4L2_CID_HFLIP: |
f026671d HV |
726 | val = ctrl->val ? REG04_HFLIP_IMG : 0x00; |
727 | return ov2640_mask_set(client, REG04, REG04_HFLIP_IMG, val); | |
3153ac9c AP |
728 | } |
729 | ||
f026671d | 730 | return -EINVAL; |
3153ac9c AP |
731 | } |
732 | ||
3153ac9c AP |
733 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
734 | static int ov2640_g_register(struct v4l2_subdev *sd, | |
735 | struct v4l2_dbg_register *reg) | |
736 | { | |
737 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
738 | int ret; | |
739 | ||
740 | reg->size = 1; | |
741 | if (reg->reg > 0xff) | |
742 | return -EINVAL; | |
743 | ||
744 | ret = i2c_smbus_read_byte_data(client, reg->reg); | |
745 | if (ret < 0) | |
746 | return ret; | |
747 | ||
748 | reg->val = ret; | |
749 | ||
750 | return 0; | |
751 | } | |
752 | ||
753 | static int ov2640_s_register(struct v4l2_subdev *sd, | |
977ba3b1 | 754 | const struct v4l2_dbg_register *reg) |
3153ac9c AP |
755 | { |
756 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
757 | ||
758 | if (reg->reg > 0xff || | |
759 | reg->val > 0xff) | |
760 | return -EINVAL; | |
761 | ||
762 | return i2c_smbus_write_byte_data(client, reg->reg, reg->val); | |
763 | } | |
764 | #endif | |
765 | ||
4ec10bac LP |
766 | static int ov2640_s_power(struct v4l2_subdev *sd, int on) |
767 | { | |
3622d3e7 | 768 | #ifdef CONFIG_GPIOLIB |
4ec10bac | 769 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
9aea470b | 770 | struct ov2640_priv *priv = to_ov2640(client); |
4ec10bac | 771 | |
a463ea99 MCC |
772 | if (priv->pwdn_gpio) |
773 | gpiod_direction_output(priv->pwdn_gpio, !on); | |
34aa8879 HV |
774 | if (on && priv->resetb_gpio) { |
775 | /* Active the resetb pin to perform a reset pulse */ | |
776 | gpiod_direction_output(priv->resetb_gpio, 1); | |
777 | usleep_range(3000, 5000); | |
3622d3e7 | 778 | gpiod_set_value(priv->resetb_gpio, 0); |
34aa8879 | 779 | } |
a463ea99 | 780 | #endif |
34aa8879 | 781 | return 0; |
4ec10bac LP |
782 | } |
783 | ||
3153ac9c | 784 | /* Select the nearest higher resolution for capture */ |
38eeb491 | 785 | static const struct ov2640_win_size *ov2640_select_win(u32 width, u32 height) |
3153ac9c AP |
786 | { |
787 | int i, default_size = ARRAY_SIZE(ov2640_supported_win_sizes) - 1; | |
788 | ||
789 | for (i = 0; i < ARRAY_SIZE(ov2640_supported_win_sizes); i++) { | |
38eeb491 FS |
790 | if (ov2640_supported_win_sizes[i].width >= width && |
791 | ov2640_supported_win_sizes[i].height >= height) | |
3153ac9c | 792 | return &ov2640_supported_win_sizes[i]; |
3153ac9c AP |
793 | } |
794 | ||
3153ac9c AP |
795 | return &ov2640_supported_win_sizes[default_size]; |
796 | } | |
797 | ||
aa23c053 HV |
798 | static int ov2640_set_params(struct i2c_client *client, |
799 | const struct ov2640_win_size *win, u32 code) | |
3153ac9c AP |
800 | { |
801 | struct ov2640_priv *priv = to_ov2640(client); | |
802 | const struct regval_list *selected_cfmt_regs; | |
d72b196f | 803 | u8 val; |
3153ac9c AP |
804 | int ret; |
805 | ||
806 | /* select win */ | |
aa23c053 | 807 | priv->win = win; |
3153ac9c AP |
808 | |
809 | /* select format */ | |
810 | priv->cfmt_code = 0; | |
811 | switch (code) { | |
f5fe58fd | 812 | case MEDIA_BUS_FMT_RGB565_2X8_BE: |
d1a49eac FS |
813 | dev_dbg(&client->dev, "%s: Selected cfmt RGB565 BE", __func__); |
814 | selected_cfmt_regs = ov2640_rgb565_be_regs; | |
815 | break; | |
f5fe58fd | 816 | case MEDIA_BUS_FMT_RGB565_2X8_LE: |
d1a49eac FS |
817 | dev_dbg(&client->dev, "%s: Selected cfmt RGB565 LE", __func__); |
818 | selected_cfmt_regs = ov2640_rgb565_le_regs; | |
819 | break; | |
f5fe58fd | 820 | case MEDIA_BUS_FMT_YUYV8_2X8: |
d1a49eac FS |
821 | dev_dbg(&client->dev, "%s: Selected cfmt YUYV (YUV422)", __func__); |
822 | selected_cfmt_regs = ov2640_yuyv_regs; | |
3153ac9c | 823 | break; |
f5fe58fd | 824 | case MEDIA_BUS_FMT_UYVY8_2X8: |
9823f003 | 825 | default: |
d1a49eac FS |
826 | dev_dbg(&client->dev, "%s: Selected cfmt UYVY", __func__); |
827 | selected_cfmt_regs = ov2640_uyvy_regs; | |
9823f003 | 828 | break; |
d72b196f FS |
829 | case MEDIA_BUS_FMT_YVYU8_2X8: |
830 | dev_dbg(&client->dev, "%s: Selected cfmt YVYU", __func__); | |
831 | selected_cfmt_regs = ov2640_yuyv_regs; | |
832 | break; | |
833 | case MEDIA_BUS_FMT_VYUY8_2X8: | |
834 | dev_dbg(&client->dev, "%s: Selected cfmt VYUY", __func__); | |
835 | selected_cfmt_regs = ov2640_uyvy_regs; | |
836 | break; | |
3153ac9c AP |
837 | } |
838 | ||
839 | /* reset hardware */ | |
840 | ov2640_reset(client); | |
841 | ||
842 | /* initialize the sensor with default data */ | |
843 | dev_dbg(&client->dev, "%s: Init default", __func__); | |
844 | ret = ov2640_write_array(client, ov2640_init_regs); | |
845 | if (ret < 0) | |
846 | goto err; | |
847 | ||
848 | /* select preamble */ | |
849 | dev_dbg(&client->dev, "%s: Set size to %s", __func__, priv->win->name); | |
850 | ret = ov2640_write_array(client, ov2640_size_change_preamble_regs); | |
851 | if (ret < 0) | |
852 | goto err; | |
853 | ||
854 | /* set size win */ | |
855 | ret = ov2640_write_array(client, priv->win->regs); | |
856 | if (ret < 0) | |
857 | goto err; | |
858 | ||
859 | /* cfmt preamble */ | |
860 | dev_dbg(&client->dev, "%s: Set cfmt", __func__); | |
861 | ret = ov2640_write_array(client, ov2640_format_change_preamble_regs); | |
862 | if (ret < 0) | |
863 | goto err; | |
864 | ||
865 | /* set cfmt */ | |
866 | ret = ov2640_write_array(client, selected_cfmt_regs); | |
d72b196f FS |
867 | if (ret < 0) |
868 | goto err; | |
869 | val = (code == MEDIA_BUS_FMT_YVYU8_2X8) | |
870 | || (code == MEDIA_BUS_FMT_VYUY8_2X8) ? CTRL0_VFIRST : 0x00; | |
871 | ret = ov2640_mask_set(client, CTRL0, CTRL0_VFIRST, val); | |
3153ac9c AP |
872 | if (ret < 0) |
873 | goto err; | |
874 | ||
875 | priv->cfmt_code = code; | |
3153ac9c AP |
876 | |
877 | return 0; | |
878 | ||
879 | err: | |
880 | dev_err(&client->dev, "%s: Error %d", __func__, ret); | |
881 | ov2640_reset(client); | |
882 | priv->win = NULL; | |
883 | ||
884 | return ret; | |
885 | } | |
886 | ||
da298c6d HV |
887 | static int ov2640_get_fmt(struct v4l2_subdev *sd, |
888 | struct v4l2_subdev_pad_config *cfg, | |
889 | struct v4l2_subdev_format *format) | |
3153ac9c | 890 | { |
da298c6d | 891 | struct v4l2_mbus_framefmt *mf = &format->format; |
3153ac9c AP |
892 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
893 | struct ov2640_priv *priv = to_ov2640(client); | |
894 | ||
da298c6d HV |
895 | if (format->pad) |
896 | return -EINVAL; | |
897 | ||
3153ac9c | 898 | if (!priv->win) { |
38eeb491 | 899 | priv->win = ov2640_select_win(SVGA_WIDTH, SVGA_HEIGHT); |
f5fe58fd | 900 | priv->cfmt_code = MEDIA_BUS_FMT_UYVY8_2X8; |
3153ac9c AP |
901 | } |
902 | ||
903 | mf->width = priv->win->width; | |
904 | mf->height = priv->win->height; | |
905 | mf->code = priv->cfmt_code; | |
9823f003 | 906 | mf->colorspace = V4L2_COLORSPACE_SRGB; |
3153ac9c AP |
907 | mf->field = V4L2_FIELD_NONE; |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
717fd5b4 HV |
912 | static int ov2640_set_fmt(struct v4l2_subdev *sd, |
913 | struct v4l2_subdev_pad_config *cfg, | |
914 | struct v4l2_subdev_format *format) | |
3153ac9c | 915 | { |
717fd5b4 | 916 | struct v4l2_mbus_framefmt *mf = &format->format; |
3153ac9c | 917 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
aa23c053 | 918 | const struct ov2640_win_size *win; |
3153ac9c | 919 | |
717fd5b4 HV |
920 | if (format->pad) |
921 | return -EINVAL; | |
3153ac9c | 922 | |
aa23c053 | 923 | /* select suitable win */ |
38eeb491 FS |
924 | win = ov2640_select_win(mf->width, mf->height); |
925 | mf->width = win->width; | |
926 | mf->height = win->height; | |
3153ac9c AP |
927 | |
928 | mf->field = V4L2_FIELD_NONE; | |
9823f003 | 929 | mf->colorspace = V4L2_COLORSPACE_SRGB; |
3153ac9c AP |
930 | |
931 | switch (mf->code) { | |
f5fe58fd BB |
932 | case MEDIA_BUS_FMT_RGB565_2X8_BE: |
933 | case MEDIA_BUS_FMT_RGB565_2X8_LE: | |
9823f003 HV |
934 | case MEDIA_BUS_FMT_YUYV8_2X8: |
935 | case MEDIA_BUS_FMT_UYVY8_2X8: | |
d72b196f FS |
936 | case MEDIA_BUS_FMT_YVYU8_2X8: |
937 | case MEDIA_BUS_FMT_VYUY8_2X8: | |
3153ac9c AP |
938 | break; |
939 | default: | |
f5fe58fd | 940 | mf->code = MEDIA_BUS_FMT_UYVY8_2X8; |
9823f003 | 941 | break; |
3153ac9c AP |
942 | } |
943 | ||
717fd5b4 | 944 | if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) |
aa23c053 | 945 | return ov2640_set_params(client, win, mf->code); |
717fd5b4 | 946 | cfg->try_fmt = *mf; |
3153ac9c AP |
947 | return 0; |
948 | } | |
949 | ||
ebcff5fc HV |
950 | static int ov2640_enum_mbus_code(struct v4l2_subdev *sd, |
951 | struct v4l2_subdev_pad_config *cfg, | |
952 | struct v4l2_subdev_mbus_code_enum *code) | |
3153ac9c | 953 | { |
ebcff5fc | 954 | if (code->pad || code->index >= ARRAY_SIZE(ov2640_codes)) |
3153ac9c AP |
955 | return -EINVAL; |
956 | ||
ebcff5fc | 957 | code->code = ov2640_codes[code->index]; |
3153ac9c AP |
958 | return 0; |
959 | } | |
960 | ||
10d5509c HV |
961 | static int ov2640_get_selection(struct v4l2_subdev *sd, |
962 | struct v4l2_subdev_pad_config *cfg, | |
963 | struct v4l2_subdev_selection *sel) | |
3153ac9c | 964 | { |
10d5509c HV |
965 | if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) |
966 | return -EINVAL; | |
3153ac9c | 967 | |
10d5509c HV |
968 | switch (sel->target) { |
969 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
970 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
971 | case V4L2_SEL_TGT_CROP: | |
972 | sel->r.left = 0; | |
973 | sel->r.top = 0; | |
974 | sel->r.width = UXGA_WIDTH; | |
975 | sel->r.height = UXGA_HEIGHT; | |
976 | return 0; | |
977 | default: | |
978 | return -EINVAL; | |
979 | } | |
3153ac9c AP |
980 | } |
981 | ||
14178aa5 | 982 | static int ov2640_video_probe(struct i2c_client *client) |
3153ac9c AP |
983 | { |
984 | struct ov2640_priv *priv = to_ov2640(client); | |
985 | u8 pid, ver, midh, midl; | |
986 | const char *devname; | |
987 | int ret; | |
988 | ||
4bbc6d52 LP |
989 | ret = ov2640_s_power(&priv->subdev, 1); |
990 | if (ret < 0) | |
991 | return ret; | |
992 | ||
3153ac9c AP |
993 | /* |
994 | * check and show product ID and manufacturer ID | |
995 | */ | |
996 | i2c_smbus_write_byte_data(client, BANK_SEL, BANK_SEL_SENS); | |
997 | pid = i2c_smbus_read_byte_data(client, PID); | |
998 | ver = i2c_smbus_read_byte_data(client, VER); | |
999 | midh = i2c_smbus_read_byte_data(client, MIDH); | |
1000 | midl = i2c_smbus_read_byte_data(client, MIDL); | |
1001 | ||
1002 | switch (VERSION(pid, ver)) { | |
1003 | case PID_OV2640: | |
1004 | devname = "ov2640"; | |
3153ac9c AP |
1005 | break; |
1006 | default: | |
1007 | dev_err(&client->dev, | |
1008 | "Product ID error %x:%x\n", pid, ver); | |
1009 | ret = -ENODEV; | |
4bbc6d52 | 1010 | goto done; |
3153ac9c AP |
1011 | } |
1012 | ||
1013 | dev_info(&client->dev, | |
1014 | "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", | |
1015 | devname, pid, ver, midh, midl); | |
1016 | ||
4bbc6d52 | 1017 | ret = v4l2_ctrl_handler_setup(&priv->hdl); |
3153ac9c | 1018 | |
4bbc6d52 LP |
1019 | done: |
1020 | ov2640_s_power(&priv->subdev, 0); | |
3153ac9c AP |
1021 | return ret; |
1022 | } | |
1023 | ||
f026671d HV |
1024 | static const struct v4l2_ctrl_ops ov2640_ctrl_ops = { |
1025 | .s_ctrl = ov2640_s_ctrl, | |
3153ac9c AP |
1026 | }; |
1027 | ||
6713c88f | 1028 | static const struct v4l2_subdev_core_ops ov2640_subdev_core_ops = { |
3153ac9c AP |
1029 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1030 | .g_register = ov2640_g_register, | |
1031 | .s_register = ov2640_s_register, | |
1032 | #endif | |
4ec10bac | 1033 | .s_power = ov2640_s_power, |
3153ac9c AP |
1034 | }; |
1035 | ||
ebcff5fc HV |
1036 | static const struct v4l2_subdev_pad_ops ov2640_subdev_pad_ops = { |
1037 | .enum_mbus_code = ov2640_enum_mbus_code, | |
10d5509c | 1038 | .get_selection = ov2640_get_selection, |
da298c6d | 1039 | .get_fmt = ov2640_get_fmt, |
717fd5b4 | 1040 | .set_fmt = ov2640_set_fmt, |
ebcff5fc HV |
1041 | }; |
1042 | ||
6713c88f | 1043 | static const struct v4l2_subdev_ops ov2640_subdev_ops = { |
3153ac9c | 1044 | .core = &ov2640_subdev_core_ops, |
ebcff5fc | 1045 | .pad = &ov2640_subdev_pad_ops, |
3153ac9c AP |
1046 | }; |
1047 | ||
4e65172f JW |
1048 | static int ov2640_probe_dt(struct i2c_client *client, |
1049 | struct ov2640_priv *priv) | |
1050 | { | |
3622d3e7 MCC |
1051 | int ret; |
1052 | ||
4e65172f JW |
1053 | /* Request the reset GPIO deasserted */ |
1054 | priv->resetb_gpio = devm_gpiod_get_optional(&client->dev, "resetb", | |
1055 | GPIOD_OUT_LOW); | |
3622d3e7 | 1056 | |
4e65172f JW |
1057 | if (!priv->resetb_gpio) |
1058 | dev_dbg(&client->dev, "resetb gpio is not assigned!\n"); | |
3622d3e7 MCC |
1059 | |
1060 | ret = PTR_ERR_OR_ZERO(priv->resetb_gpio); | |
1061 | if (ret && ret != -ENOSYS) { | |
1062 | dev_dbg(&client->dev, | |
1063 | "Error %d while getting resetb gpio\n", ret); | |
1064 | return ret; | |
1065 | } | |
4e65172f JW |
1066 | |
1067 | /* Request the power down GPIO asserted */ | |
1068 | priv->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "pwdn", | |
1069 | GPIOD_OUT_HIGH); | |
3622d3e7 | 1070 | |
4e65172f JW |
1071 | if (!priv->pwdn_gpio) |
1072 | dev_dbg(&client->dev, "pwdn gpio is not assigned!\n"); | |
3622d3e7 MCC |
1073 | |
1074 | ret = PTR_ERR_OR_ZERO(priv->pwdn_gpio); | |
1075 | if (ret && ret != -ENOSYS) { | |
1076 | dev_dbg(&client->dev, | |
1077 | "Error %d while getting pwdn gpio\n", ret); | |
1078 | return ret; | |
1079 | } | |
4e65172f | 1080 | |
4e65172f JW |
1081 | return 0; |
1082 | } | |
1083 | ||
3153ac9c AP |
1084 | /* |
1085 | * i2c_driver functions | |
1086 | */ | |
1087 | static int ov2640_probe(struct i2c_client *client, | |
1088 | const struct i2c_device_id *did) | |
1089 | { | |
14178aa5 | 1090 | struct ov2640_priv *priv; |
14178aa5 GL |
1091 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); |
1092 | int ret; | |
3153ac9c | 1093 | |
3153ac9c AP |
1094 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1095 | dev_err(&adapter->dev, | |
1096 | "OV2640: I2C-Adapter doesn't support SMBUS\n"); | |
1097 | return -EIO; | |
1098 | } | |
1099 | ||
19fab6fe | 1100 | priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL); |
0fd58435 | 1101 | if (!priv) |
3153ac9c | 1102 | return -ENOMEM; |
3153ac9c | 1103 | |
46796cfc HV |
1104 | if (client->dev.of_node) { |
1105 | priv->clk = devm_clk_get(&client->dev, "xvclk"); | |
1106 | if (IS_ERR(priv->clk)) | |
877f1af1 | 1107 | return PTR_ERR(priv->clk); |
c3d14780 FE |
1108 | ret = clk_prepare_enable(priv->clk); |
1109 | if (ret) | |
1110 | return ret; | |
4e65172f JW |
1111 | } |
1112 | ||
34aa8879 HV |
1113 | ret = ov2640_probe_dt(client, priv); |
1114 | if (ret) | |
1115 | goto err_clk; | |
4e65172f | 1116 | |
3153ac9c | 1117 | v4l2_i2c_subdev_init(&priv->subdev, client, &ov2640_subdev_ops); |
6b725eb6 | 1118 | priv->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; |
f026671d HV |
1119 | v4l2_ctrl_handler_init(&priv->hdl, 2); |
1120 | v4l2_ctrl_new_std(&priv->hdl, &ov2640_ctrl_ops, | |
1121 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
1122 | v4l2_ctrl_new_std(&priv->hdl, &ov2640_ctrl_ops, | |
1123 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
1124 | priv->subdev.ctrl_handler = &priv->hdl; | |
f180ebae JW |
1125 | if (priv->hdl.error) { |
1126 | ret = priv->hdl.error; | |
46796cfc | 1127 | goto err_hdl; |
9aea470b | 1128 | } |
ff0e9c1d HV |
1129 | #if defined(CONFIG_MEDIA_CONTROLLER) |
1130 | priv->pad.flags = MEDIA_PAD_FL_SOURCE; | |
1131 | priv->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR; | |
1132 | ret = media_entity_pads_init(&priv->subdev.entity, 1, &priv->pad); | |
1133 | if (ret < 0) | |
1134 | goto err_hdl; | |
1135 | #endif | |
9aea470b | 1136 | |
14178aa5 | 1137 | ret = ov2640_video_probe(client); |
f180ebae | 1138 | if (ret < 0) |
ff0e9c1d | 1139 | goto err_videoprobe; |
3153ac9c | 1140 | |
f180ebae JW |
1141 | ret = v4l2_async_register_subdev(&priv->subdev); |
1142 | if (ret < 0) | |
ff0e9c1d | 1143 | goto err_videoprobe; |
f180ebae JW |
1144 | |
1145 | dev_info(&adapter->dev, "OV2640 Probed\n"); | |
1146 | ||
1147 | return 0; | |
1148 | ||
ff0e9c1d HV |
1149 | err_videoprobe: |
1150 | #if defined(CONFIG_MEDIA_CONTROLLER) | |
1151 | media_entity_cleanup(&priv->subdev.entity); | |
1152 | #endif | |
46796cfc | 1153 | err_hdl: |
f180ebae JW |
1154 | v4l2_ctrl_handler_free(&priv->hdl); |
1155 | err_clk: | |
46796cfc | 1156 | clk_disable_unprepare(priv->clk); |
3153ac9c AP |
1157 | return ret; |
1158 | } | |
1159 | ||
1160 | static int ov2640_remove(struct i2c_client *client) | |
1161 | { | |
1162 | struct ov2640_priv *priv = to_ov2640(client); | |
3153ac9c | 1163 | |
f180ebae | 1164 | v4l2_async_unregister_subdev(&priv->subdev); |
f026671d | 1165 | v4l2_ctrl_handler_free(&priv->hdl); |
ff0e9c1d HV |
1166 | #if defined(CONFIG_MEDIA_CONTROLLER) |
1167 | media_entity_cleanup(&priv->subdev.entity); | |
1168 | #endif | |
46796cfc HV |
1169 | v4l2_device_unregister_subdev(&priv->subdev); |
1170 | clk_disable_unprepare(priv->clk); | |
3153ac9c AP |
1171 | return 0; |
1172 | } | |
1173 | ||
1174 | static const struct i2c_device_id ov2640_id[] = { | |
1175 | { "ov2640", 0 }, | |
1176 | { } | |
1177 | }; | |
1178 | MODULE_DEVICE_TABLE(i2c, ov2640_id); | |
1179 | ||
4e65172f JW |
1180 | static const struct of_device_id ov2640_of_match[] = { |
1181 | {.compatible = "ovti,ov2640", }, | |
1182 | {}, | |
1183 | }; | |
1184 | MODULE_DEVICE_TABLE(of, ov2640_of_match); | |
1185 | ||
3153ac9c AP |
1186 | static struct i2c_driver ov2640_i2c_driver = { |
1187 | .driver = { | |
1188 | .name = "ov2640", | |
4e65172f | 1189 | .of_match_table = of_match_ptr(ov2640_of_match), |
3153ac9c AP |
1190 | }, |
1191 | .probe = ov2640_probe, | |
1192 | .remove = ov2640_remove, | |
1193 | .id_table = ov2640_id, | |
1194 | }; | |
1195 | ||
c6e8d86f | 1196 | module_i2c_driver(ov2640_i2c_driver); |
3153ac9c | 1197 | |
34aa8879 | 1198 | MODULE_DESCRIPTION("Driver for Omni Vision 2640 sensor"); |
3153ac9c AP |
1199 | MODULE_AUTHOR("Alberto Panizzo"); |
1200 | MODULE_LICENSE("GPL v2"); |