1 /*
2 * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved.
3 * Copyright (C) 2014-2017 Mentor Graphics Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 */
10
11 #include <linux/clk.h>
12 #include <linux/clk-provider.h>
13 #include <linux/clkdev.h>
14 #include <linux/ctype.h>
15 #include <linux/delay.h>
16 #include <linux/device.h>
17 #include <linux/gpio/consumer.h>
18 #include <linux/i2c.h>
19 #include <linux/init.h>
20 #include <linux/module.h>
21 #include <linux/of_device.h>
22 #include <linux/regulator/consumer.h>
23 #include <linux/slab.h>
24 #include <linux/types.h>
25 #include <media/v4l2-async.h>
26 #include <media/v4l2-ctrls.h>
27 #include <media/v4l2-device.h>
28 #include <media/v4l2-fwnode.h>
29 #include <media/v4l2-subdev.h>
30
31 /* min/typical/max system clock (xclk) frequencies */
32 #define OV5640_XCLK_MIN 6000000
33 #define OV5640_XCLK_MAX 54000000
34
35 #define OV5640_DEFAULT_SLAVE_ID 0x3c
36
37 #define OV5640_REG_SYS_RESET02 0x3002
38 #define OV5640_REG_SYS_CLOCK_ENABLE02 0x3006
39 #define OV5640_REG_SYS_CTRL0 0x3008
40 #define OV5640_REG_CHIP_ID 0x300a
41 #define OV5640_REG_IO_MIPI_CTRL00 0x300e
42 #define OV5640_REG_PAD_OUTPUT_ENABLE01 0x3017
43 #define OV5640_REG_PAD_OUTPUT_ENABLE02 0x3018
44 #define OV5640_REG_PAD_OUTPUT00 0x3019
45 #define OV5640_REG_SYSTEM_CONTROL1 0x302e
46 #define OV5640_REG_SC_PLL_CTRL0 0x3034
47 #define OV5640_REG_SC_PLL_CTRL1 0x3035
48 #define OV5640_REG_SC_PLL_CTRL2 0x3036
49 #define OV5640_REG_SC_PLL_CTRL3 0x3037
50 #define OV5640_REG_SLAVE_ID 0x3100
51 #define OV5640_REG_SCCB_SYS_CTRL1 0x3103
52 #define OV5640_REG_SYS_ROOT_DIVIDER 0x3108
53 #define OV5640_REG_AWB_R_GAIN 0x3400
54 #define OV5640_REG_AWB_G_GAIN 0x3402
55 #define OV5640_REG_AWB_B_GAIN 0x3404
56 #define OV5640_REG_AWB_MANUAL_CTRL 0x3406
57 #define OV5640_REG_AEC_PK_EXPOSURE_HI 0x3500
58 #define OV5640_REG_AEC_PK_EXPOSURE_MED 0x3501
59 #define OV5640_REG_AEC_PK_EXPOSURE_LO 0x3502
60 #define OV5640_REG_AEC_PK_MANUAL 0x3503
61 #define OV5640_REG_AEC_PK_REAL_GAIN 0x350a
62 #define OV5640_REG_AEC_PK_VTS 0x350c
63 #define OV5640_REG_TIMING_DVPHO 0x3808
64 #define OV5640_REG_TIMING_DVPVO 0x380a
65 #define OV5640_REG_TIMING_HTS 0x380c
66 #define OV5640_REG_TIMING_VTS 0x380e
67 #define OV5640_REG_TIMING_TC_REG20 0x3820
68 #define OV5640_REG_TIMING_TC_REG21 0x3821
69 #define OV5640_REG_AEC_CTRL00 0x3a00
70 #define OV5640_REG_AEC_B50_STEP 0x3a08
71 #define OV5640_REG_AEC_B60_STEP 0x3a0a
72 #define OV5640_REG_AEC_CTRL0D 0x3a0d
73 #define OV5640_REG_AEC_CTRL0E 0x3a0e
74 #define OV5640_REG_AEC_CTRL0F 0x3a0f
75 #define OV5640_REG_AEC_CTRL10 0x3a10
76 #define OV5640_REG_AEC_CTRL11 0x3a11
77 #define OV5640_REG_AEC_CTRL1B 0x3a1b
78 #define OV5640_REG_AEC_CTRL1E 0x3a1e
79 #define OV5640_REG_AEC_CTRL1F 0x3a1f
80 #define OV5640_REG_HZ5060_CTRL00 0x3c00
81 #define OV5640_REG_HZ5060_CTRL01 0x3c01
82 #define OV5640_REG_SIGMADELTA_CTRL0C 0x3c0c
83 #define OV5640_REG_FRAME_CTRL01 0x4202
84 #define OV5640_REG_FORMAT_CONTROL00 0x4300
85 #define OV5640_REG_POLARITY_CTRL00 0x4740
86 #define OV5640_REG_MIPI_CTRL00 0x4800
87 #define OV5640_REG_DEBUG_MODE 0x4814
88 #define OV5640_REG_ISP_FORMAT_MUX_CTRL 0x501f
89 #define OV5640_REG_PRE_ISP_TEST_SET1 0x503d
90 #define OV5640_REG_SDE_CTRL0 0x5580
91 #define OV5640_REG_SDE_CTRL1 0x5581
92 #define OV5640_REG_SDE_CTRL3 0x5583
93 #define OV5640_REG_SDE_CTRL4 0x5584
94 #define OV5640_REG_SDE_CTRL5 0x5585
95 #define OV5640_REG_AVG_READOUT 0x56a1
96
97 #define OV5640_SCLK2X_ROOT_DIVIDER_DEFAULT 1
98 #define OV5640_SCLK_ROOT_DIVIDER_DEFAULT 2
99
100 enum ov5640_mode_id {
101 OV5640_MODE_QCIF_176_144 = 0,
102 OV5640_MODE_QVGA_320_240,
103 OV5640_MODE_VGA_640_480,
104 OV5640_MODE_NTSC_720_480,
105 OV5640_MODE_PAL_720_576,
106 OV5640_MODE_XGA_1024_768,
107 OV5640_MODE_720P_1280_720,
108 OV5640_MODE_1080P_1920_1080,
109 OV5640_MODE_QSXGA_2592_1944,
110 OV5640_NUM_MODES,
111 };
112
113 enum ov5640_frame_rate {
114 OV5640_15_FPS = 0,
115 OV5640_30_FPS,
116 OV5640_NUM_FRAMERATES,
117 };
118
119 struct ov5640_pixfmt {
120 u32 code;
121 u32 colorspace;
122 };
123
124 static const struct ov5640_pixfmt ov5640_formats[] = {
125 { MEDIA_BUS_FMT_JPEG_1X8, V4L2_COLORSPACE_JPEG, },
126 { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_SRGB, },
127 { MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_SRGB, },
128 { MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB, },
129 { MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB, },
130 };
131
132 /*
133 * FIXME: remove this when a subdev API becomes available
134 * to set the MIPI CSI-2 virtual channel.
135 */
136 static unsigned int virtual_channel;
137 module_param(virtual_channel, uint, 0444);
138 MODULE_PARM_DESC(virtual_channel,
139 "MIPI CSI-2 virtual channel (0..3), default 0");
140
141 static const int ov5640_framerates[] = {
142 [OV5640_15_FPS] = 15,
143 [OV5640_30_FPS] = 30,
144 };
145
146 /* regulator supplies */
147 static const char * const ov5640_supply_name[] = {
148 "DOVDD", /* Digital I/O (1.8V) supply */
149 "DVDD", /* Digital Core (1.5V) supply */
150 "AVDD", /* Analog (2.8V) supply */
151 };
152
153 #define OV5640_NUM_SUPPLIES ARRAY_SIZE(ov5640_supply_name)
154
155 /*
156 * Image size under 1280 * 960 are SUBSAMPLING
157 * Image size upper 1280 * 960 are SCALING
158 */
159 enum ov5640_downsize_mode {
160 SUBSAMPLING,
161 SCALING,
162 };
163
164 struct reg_value {
165 u16 reg_addr;
166 u8 val;
167 u8 mask;
168 u32 delay_ms;
169 };
170
171 struct ov5640_mode_info {
172 enum ov5640_mode_id id;
173 enum ov5640_downsize_mode dn_mode;
174 u32 hact;
175 u32 htot;
176 u32 vact;
177 u32 vtot;
178 const struct reg_value *reg_data;
179 u32 reg_data_size;
180 };
181
182 struct ov5640_ctrls {
183 struct v4l2_ctrl_handler handler;
184 struct {
185 struct v4l2_ctrl *auto_exp;
186 struct v4l2_ctrl *exposure;
187 };
188 struct {
189 struct v4l2_ctrl *auto_wb;
190 struct v4l2_ctrl *blue_balance;
191 struct v4l2_ctrl *red_balance;
192 };
193 struct {
194 struct v4l2_ctrl *auto_gain;
195 struct v4l2_ctrl *gain;
196 };
197 struct v4l2_ctrl *brightness;
198 struct v4l2_ctrl *light_freq;
199 struct v4l2_ctrl *saturation;
200 struct v4l2_ctrl *contrast;
201 struct v4l2_ctrl *hue;
202 struct v4l2_ctrl *test_pattern;
203 struct v4l2_ctrl *hflip;
204 struct v4l2_ctrl *vflip;
205 };
206
207 struct ov5640_dev {
208 struct i2c_client *i2c_client;
209 struct v4l2_subdev sd;
210 struct media_pad pad;
211 struct v4l2_fwnode_endpoint ep; /* the parsed DT endpoint info */
212 struct clk *xclk; /* system clock to OV5640 */
213 u32 xclk_freq;
214
215 struct regulator_bulk_data supplies[OV5640_NUM_SUPPLIES];
216 struct gpio_desc *reset_gpio;
217 struct gpio_desc *pwdn_gpio;
218 bool upside_down;
219
220 /* lock to protect all members below */
221 struct mutex lock;
222
223 int power_count;
224
225 struct v4l2_mbus_framefmt fmt;
226
227 const struct ov5640_mode_info *current_mode;
228 enum ov5640_frame_rate current_fr;
229 struct v4l2_fract frame_interval;
230
231 struct ov5640_ctrls ctrls;
232
233 u32 prev_sysclk, prev_hts;
234 u32 ae_low, ae_high, ae_target;
235
236 bool pending_mode_change;
237 bool streaming;
238 };
239
to_ov5640_dev(struct v4l2_subdev * sd)240 static inline struct ov5640_dev *to_ov5640_dev(struct v4l2_subdev *sd)
241 {
242 return container_of(sd, struct ov5640_dev, sd);
243 }
244
ctrl_to_sd(struct v4l2_ctrl * ctrl)245 static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl)
246 {
247 return &container_of(ctrl->handler, struct ov5640_dev,
248 ctrls.handler)->sd;
249 }
250
251 /*
252 * FIXME: all of these register tables are likely filled with
253 * entries that set the register to their power-on default values,
254 * and which are otherwise not touched by this driver. Those entries
255 * should be identified and removed to speed register load time
256 * over i2c.
257 */
258
259 static const struct reg_value ov5640_init_setting_30fps_VGA[] = {
260 {0x3103, 0x11, 0, 0}, {0x3008, 0x82, 0, 5}, {0x3008, 0x42, 0, 0},
261 {0x3103, 0x03, 0, 0}, {0x3017, 0x00, 0, 0}, {0x3018, 0x00, 0, 0},
262 {0x3034, 0x18, 0, 0}, {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0},
263 {0x3037, 0x13, 0, 0}, {0x3630, 0x36, 0, 0},
264 {0x3631, 0x0e, 0, 0}, {0x3632, 0xe2, 0, 0}, {0x3633, 0x12, 0, 0},
265 {0x3621, 0xe0, 0, 0}, {0x3704, 0xa0, 0, 0}, {0x3703, 0x5a, 0, 0},
266 {0x3715, 0x78, 0, 0}, {0x3717, 0x01, 0, 0}, {0x370b, 0x60, 0, 0},
267 {0x3705, 0x1a, 0, 0}, {0x3905, 0x02, 0, 0}, {0x3906, 0x10, 0, 0},
268 {0x3901, 0x0a, 0, 0}, {0x3731, 0x12, 0, 0}, {0x3600, 0x08, 0, 0},
269 {0x3601, 0x33, 0, 0}, {0x302d, 0x60, 0, 0}, {0x3620, 0x52, 0, 0},
270 {0x371b, 0x20, 0, 0}, {0x471c, 0x50, 0, 0}, {0x3a13, 0x43, 0, 0},
271 {0x3a18, 0x00, 0, 0}, {0x3a19, 0xf8, 0, 0}, {0x3635, 0x13, 0, 0},
272 {0x3636, 0x03, 0, 0}, {0x3634, 0x40, 0, 0}, {0x3622, 0x01, 0, 0},
273 {0x3c01, 0xa4, 0, 0}, {0x3c04, 0x28, 0, 0}, {0x3c05, 0x98, 0, 0},
274 {0x3c06, 0x00, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c08, 0x00, 0, 0},
275 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
276 {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
277 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
278 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
279 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
280 {0x3810, 0x00, 0, 0},
281 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
282 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
283 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
284 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
285 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
286 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
287 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x3000, 0x00, 0, 0},
288 {0x3002, 0x1c, 0, 0}, {0x3004, 0xff, 0, 0}, {0x3006, 0xc3, 0, 0},
289 {0x300e, 0x45, 0, 0}, {0x302e, 0x08, 0, 0}, {0x4300, 0x3f, 0, 0},
290 {0x501f, 0x00, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0},
291 {0x440e, 0x00, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
292 {0x4837, 0x0a, 0, 0}, {0x4800, 0x04, 0, 0}, {0x3824, 0x02, 0, 0},
293 {0x5000, 0xa7, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x5180, 0xff, 0, 0},
294 {0x5181, 0xf2, 0, 0}, {0x5182, 0x00, 0, 0}, {0x5183, 0x14, 0, 0},
295 {0x5184, 0x25, 0, 0}, {0x5185, 0x24, 0, 0}, {0x5186, 0x09, 0, 0},
296 {0x5187, 0x09, 0, 0}, {0x5188, 0x09, 0, 0}, {0x5189, 0x88, 0, 0},
297 {0x518a, 0x54, 0, 0}, {0x518b, 0xee, 0, 0}, {0x518c, 0xb2, 0, 0},
298 {0x518d, 0x50, 0, 0}, {0x518e, 0x34, 0, 0}, {0x518f, 0x6b, 0, 0},
299 {0x5190, 0x46, 0, 0}, {0x5191, 0xf8, 0, 0}, {0x5192, 0x04, 0, 0},
300 {0x5193, 0x70, 0, 0}, {0x5194, 0xf0, 0, 0}, {0x5195, 0xf0, 0, 0},
301 {0x5196, 0x03, 0, 0}, {0x5197, 0x01, 0, 0}, {0x5198, 0x04, 0, 0},
302 {0x5199, 0x6c, 0, 0}, {0x519a, 0x04, 0, 0}, {0x519b, 0x00, 0, 0},
303 {0x519c, 0x09, 0, 0}, {0x519d, 0x2b, 0, 0}, {0x519e, 0x38, 0, 0},
304 {0x5381, 0x1e, 0, 0}, {0x5382, 0x5b, 0, 0}, {0x5383, 0x08, 0, 0},
305 {0x5384, 0x0a, 0, 0}, {0x5385, 0x7e, 0, 0}, {0x5386, 0x88, 0, 0},
306 {0x5387, 0x7c, 0, 0}, {0x5388, 0x6c, 0, 0}, {0x5389, 0x10, 0, 0},
307 {0x538a, 0x01, 0, 0}, {0x538b, 0x98, 0, 0}, {0x5300, 0x08, 0, 0},
308 {0x5301, 0x30, 0, 0}, {0x5302, 0x10, 0, 0}, {0x5303, 0x00, 0, 0},
309 {0x5304, 0x08, 0, 0}, {0x5305, 0x30, 0, 0}, {0x5306, 0x08, 0, 0},
310 {0x5307, 0x16, 0, 0}, {0x5309, 0x08, 0, 0}, {0x530a, 0x30, 0, 0},
311 {0x530b, 0x04, 0, 0}, {0x530c, 0x06, 0, 0}, {0x5480, 0x01, 0, 0},
312 {0x5481, 0x08, 0, 0}, {0x5482, 0x14, 0, 0}, {0x5483, 0x28, 0, 0},
313 {0x5484, 0x51, 0, 0}, {0x5485, 0x65, 0, 0}, {0x5486, 0x71, 0, 0},
314 {0x5487, 0x7d, 0, 0}, {0x5488, 0x87, 0, 0}, {0x5489, 0x91, 0, 0},
315 {0x548a, 0x9a, 0, 0}, {0x548b, 0xaa, 0, 0}, {0x548c, 0xb8, 0, 0},
316 {0x548d, 0xcd, 0, 0}, {0x548e, 0xdd, 0, 0}, {0x548f, 0xea, 0, 0},
317 {0x5490, 0x1d, 0, 0}, {0x5580, 0x02, 0, 0}, {0x5583, 0x40, 0, 0},
318 {0x5584, 0x10, 0, 0}, {0x5589, 0x10, 0, 0}, {0x558a, 0x00, 0, 0},
319 {0x558b, 0xf8, 0, 0}, {0x5800, 0x23, 0, 0}, {0x5801, 0x14, 0, 0},
320 {0x5802, 0x0f, 0, 0}, {0x5803, 0x0f, 0, 0}, {0x5804, 0x12, 0, 0},
321 {0x5805, 0x26, 0, 0}, {0x5806, 0x0c, 0, 0}, {0x5807, 0x08, 0, 0},
322 {0x5808, 0x05, 0, 0}, {0x5809, 0x05, 0, 0}, {0x580a, 0x08, 0, 0},
323 {0x580b, 0x0d, 0, 0}, {0x580c, 0x08, 0, 0}, {0x580d, 0x03, 0, 0},
324 {0x580e, 0x00, 0, 0}, {0x580f, 0x00, 0, 0}, {0x5810, 0x03, 0, 0},
325 {0x5811, 0x09, 0, 0}, {0x5812, 0x07, 0, 0}, {0x5813, 0x03, 0, 0},
326 {0x5814, 0x00, 0, 0}, {0x5815, 0x01, 0, 0}, {0x5816, 0x03, 0, 0},
327 {0x5817, 0x08, 0, 0}, {0x5818, 0x0d, 0, 0}, {0x5819, 0x08, 0, 0},
328 {0x581a, 0x05, 0, 0}, {0x581b, 0x06, 0, 0}, {0x581c, 0x08, 0, 0},
329 {0x581d, 0x0e, 0, 0}, {0x581e, 0x29, 0, 0}, {0x581f, 0x17, 0, 0},
330 {0x5820, 0x11, 0, 0}, {0x5821, 0x11, 0, 0}, {0x5822, 0x15, 0, 0},
331 {0x5823, 0x28, 0, 0}, {0x5824, 0x46, 0, 0}, {0x5825, 0x26, 0, 0},
332 {0x5826, 0x08, 0, 0}, {0x5827, 0x26, 0, 0}, {0x5828, 0x64, 0, 0},
333 {0x5829, 0x26, 0, 0}, {0x582a, 0x24, 0, 0}, {0x582b, 0x22, 0, 0},
334 {0x582c, 0x24, 0, 0}, {0x582d, 0x24, 0, 0}, {0x582e, 0x06, 0, 0},
335 {0x582f, 0x22, 0, 0}, {0x5830, 0x40, 0, 0}, {0x5831, 0x42, 0, 0},
336 {0x5832, 0x24, 0, 0}, {0x5833, 0x26, 0, 0}, {0x5834, 0x24, 0, 0},
337 {0x5835, 0x22, 0, 0}, {0x5836, 0x22, 0, 0}, {0x5837, 0x26, 0, 0},
338 {0x5838, 0x44, 0, 0}, {0x5839, 0x24, 0, 0}, {0x583a, 0x26, 0, 0},
339 {0x583b, 0x28, 0, 0}, {0x583c, 0x42, 0, 0}, {0x583d, 0xce, 0, 0},
340 {0x5025, 0x00, 0, 0}, {0x3a0f, 0x30, 0, 0}, {0x3a10, 0x28, 0, 0},
341 {0x3a1b, 0x30, 0, 0}, {0x3a1e, 0x26, 0, 0}, {0x3a11, 0x60, 0, 0},
342 {0x3a1f, 0x14, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3c00, 0x04, 0, 300},
343 };
344
345 static const struct reg_value ov5640_setting_30fps_VGA_640_480[] = {
346 {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
347 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
348 {0x3814, 0x31, 0, 0},
349 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
350 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
351 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
352 {0x3810, 0x00, 0, 0},
353 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
354 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
355 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
356 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x0e, 0, 0},
357 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
358 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
359 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
360 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
361 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x3503, 0x00, 0, 0},
362 };
363
364 static const struct reg_value ov5640_setting_15fps_VGA_640_480[] = {
365 {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
366 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
367 {0x3814, 0x31, 0, 0},
368 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
369 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
370 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
371 {0x3810, 0x00, 0, 0},
372 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
373 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
374 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
375 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
376 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
377 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
378 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
379 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
380 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
381 };
382
383 static const struct reg_value ov5640_setting_30fps_XGA_1024_768[] = {
384 {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
385 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
386 {0x3814, 0x31, 0, 0},
387 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
388 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
389 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
390 {0x3810, 0x00, 0, 0},
391 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
392 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
393 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
394 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x0e, 0, 0},
395 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
396 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
397 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
398 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
399 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x3503, 0x00, 0, 0},
400 {0x3035, 0x12, 0, 0},
401 };
402
403 static const struct reg_value ov5640_setting_15fps_XGA_1024_768[] = {
404 {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
405 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
406 {0x3814, 0x31, 0, 0},
407 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
408 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
409 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
410 {0x3810, 0x00, 0, 0},
411 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
412 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
413 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
414 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
415 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
416 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
417 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
418 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
419 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
420 };
421
422 static const struct reg_value ov5640_setting_30fps_QVGA_320_240[] = {
423 {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
424 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
425 {0x3814, 0x31, 0, 0},
426 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
427 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
428 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
429 {0x3810, 0x00, 0, 0},
430 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
431 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
432 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
433 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
434 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
435 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
436 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
437 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
438 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
439 };
440
441 static const struct reg_value ov5640_setting_15fps_QVGA_320_240[] = {
442 {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
443 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
444 {0x3814, 0x31, 0, 0},
445 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
446 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
447 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
448 {0x3810, 0x00, 0, 0},
449 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
450 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
451 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
452 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
453 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
454 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
455 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
456 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
457 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
458 };
459
460 static const struct reg_value ov5640_setting_30fps_QCIF_176_144[] = {
461 {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
462 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
463 {0x3814, 0x31, 0, 0},
464 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
465 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
466 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
467 {0x3810, 0x00, 0, 0},
468 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
469 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
470 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
471 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
472 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
473 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
474 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
475 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
476 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
477 };
478
479 static const struct reg_value ov5640_setting_15fps_QCIF_176_144[] = {
480 {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
481 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
482 {0x3814, 0x31, 0, 0},
483 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
484 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
485 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
486 {0x3810, 0x00, 0, 0},
487 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
488 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
489 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
490 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
491 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
492 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
493 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
494 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
495 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
496 };
497
498 static const struct reg_value ov5640_setting_30fps_NTSC_720_480[] = {
499 {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
500 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
501 {0x3814, 0x31, 0, 0},
502 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
503 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
504 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
505 {0x3810, 0x00, 0, 0},
506 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x3c, 0, 0},
507 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
508 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
509 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
510 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
511 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
512 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
513 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
514 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
515 };
516
517 static const struct reg_value ov5640_setting_15fps_NTSC_720_480[] = {
518 {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
519 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
520 {0x3814, 0x31, 0, 0},
521 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
522 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
523 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
524 {0x3810, 0x00, 0, 0},
525 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x3c, 0, 0},
526 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
527 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
528 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
529 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
530 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
531 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
532 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
533 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
534 };
535
536 static const struct reg_value ov5640_setting_30fps_PAL_720_576[] = {
537 {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
538 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
539 {0x3814, 0x31, 0, 0},
540 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
541 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
542 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
543 {0x3810, 0x00, 0, 0},
544 {0x3811, 0x38, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
545 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
546 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
547 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
548 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
549 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
550 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
551 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
552 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
553 };
554
555 static const struct reg_value ov5640_setting_15fps_PAL_720_576[] = {
556 {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
557 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
558 {0x3814, 0x31, 0, 0},
559 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
560 {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
561 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
562 {0x3810, 0x00, 0, 0},
563 {0x3811, 0x38, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
564 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
565 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
566 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
567 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
568 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
569 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
570 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
571 {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
572 };
573
574 static const struct reg_value ov5640_setting_30fps_720P_1280_720[] = {
575 {0x3008, 0x42, 0, 0},
576 {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0},
577 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
578 {0x3814, 0x31, 0, 0},
579 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
580 {0x3802, 0x00, 0, 0}, {0x3803, 0xfa, 0, 0}, {0x3804, 0x0a, 0, 0},
581 {0x3805, 0x3f, 0, 0}, {0x3806, 0x06, 0, 0}, {0x3807, 0xa9, 0, 0},
582 {0x3810, 0x00, 0, 0},
583 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
584 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
585 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x02, 0, 0},
586 {0x3a03, 0xe4, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0xbc, 0, 0},
587 {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x72, 0, 0}, {0x3a0e, 0x01, 0, 0},
588 {0x3a0d, 0x02, 0, 0}, {0x3a14, 0x02, 0, 0}, {0x3a15, 0xe4, 0, 0},
589 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x02, 0, 0},
590 {0x4407, 0x04, 0, 0}, {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0},
591 {0x3824, 0x04, 0, 0}, {0x5001, 0x83, 0, 0}, {0x4005, 0x1a, 0, 0},
592 {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0},
593 };
594
595 static const struct reg_value ov5640_setting_15fps_720P_1280_720[] = {
596 {0x3035, 0x41, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0},
597 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
598 {0x3814, 0x31, 0, 0},
599 {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
600 {0x3802, 0x00, 0, 0}, {0x3803, 0xfa, 0, 0}, {0x3804, 0x0a, 0, 0},
601 {0x3805, 0x3f, 0, 0}, {0x3806, 0x06, 0, 0}, {0x3807, 0xa9, 0, 0},
602 {0x3810, 0x00, 0, 0},
603 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
604 {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
605 {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x02, 0, 0},
606 {0x3a03, 0xe4, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0xbc, 0, 0},
607 {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x72, 0, 0}, {0x3a0e, 0x01, 0, 0},
608 {0x3a0d, 0x02, 0, 0}, {0x3a14, 0x02, 0, 0}, {0x3a15, 0xe4, 0, 0},
609 {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x02, 0, 0},
610 {0x4407, 0x04, 0, 0}, {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0},
611 {0x3824, 0x04, 0, 0}, {0x5001, 0x83, 0, 0},
612 };
613
614 static const struct reg_value ov5640_setting_30fps_1080P_1920_1080[] = {
615 {0x3008, 0x42, 0, 0},
616 {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0},
617 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
618 {0x3814, 0x11, 0, 0},
619 {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
620 {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0},
621 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0},
622 {0x3810, 0x00, 0, 0},
623 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
624 {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0},
625 {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0},
626 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
627 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
628 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
629 {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0},
630 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
631 {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 0}, {0x3035, 0x11, 0, 0},
632 {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0}, {0x3c08, 0x00, 0, 0},
633 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
634 {0x3800, 0x01, 0, 0}, {0x3801, 0x50, 0, 0}, {0x3802, 0x01, 0, 0},
635 {0x3803, 0xb2, 0, 0}, {0x3804, 0x08, 0, 0}, {0x3805, 0xef, 0, 0},
636 {0x3806, 0x05, 0, 0}, {0x3807, 0xf1, 0, 0},
637 {0x3612, 0x2b, 0, 0}, {0x3708, 0x64, 0, 0},
638 {0x3a02, 0x04, 0, 0}, {0x3a03, 0x60, 0, 0}, {0x3a08, 0x01, 0, 0},
639 {0x3a09, 0x50, 0, 0}, {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x18, 0, 0},
640 {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x04, 0, 0},
641 {0x3a15, 0x60, 0, 0}, {0x4713, 0x02, 0, 0}, {0x4407, 0x04, 0, 0},
642 {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0}, {0x3824, 0x04, 0, 0},
643 {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0},
644 {0x3503, 0, 0, 0},
645 };
646
647 static const struct reg_value ov5640_setting_15fps_1080P_1920_1080[] = {
648 {0x3008, 0x42, 0, 0},
649 {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0},
650 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
651 {0x3814, 0x11, 0, 0},
652 {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
653 {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0},
654 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0},
655 {0x3810, 0x00, 0, 0},
656 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
657 {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0},
658 {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0},
659 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
660 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
661 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
662 {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0},
663 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
664 {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 0}, {0x3035, 0x21, 0, 0},
665 {0x3036, 0x54, 0, 1}, {0x3c07, 0x07, 0, 0}, {0x3c08, 0x00, 0, 0},
666 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
667 {0x3800, 0x01, 0, 0}, {0x3801, 0x50, 0, 0}, {0x3802, 0x01, 0, 0},
668 {0x3803, 0xb2, 0, 0}, {0x3804, 0x08, 0, 0}, {0x3805, 0xef, 0, 0},
669 {0x3806, 0x05, 0, 0}, {0x3807, 0xf1, 0, 0},
670 {0x3612, 0x2b, 0, 0}, {0x3708, 0x64, 0, 0},
671 {0x3a02, 0x04, 0, 0}, {0x3a03, 0x60, 0, 0}, {0x3a08, 0x01, 0, 0},
672 {0x3a09, 0x50, 0, 0}, {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x18, 0, 0},
673 {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x04, 0, 0},
674 {0x3a15, 0x60, 0, 0}, {0x4713, 0x02, 0, 0}, {0x4407, 0x04, 0, 0},
675 {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0}, {0x3824, 0x04, 0, 0},
676 {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0},
677 };
678
679 static const struct reg_value ov5640_setting_15fps_QSXGA_2592_1944[] = {
680 {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0},
681 {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
682 {0x3814, 0x11, 0, 0},
683 {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
684 {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0},
685 {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0},
686 {0x3810, 0x00, 0, 0},
687 {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
688 {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0},
689 {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0},
690 {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
691 {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
692 {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
693 {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0},
694 {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
695 {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 70},
696 };
697
698 /* power-on sensor init reg table */
699 static const struct ov5640_mode_info ov5640_mode_init_data = {
700 0, SUBSAMPLING, 640, 1896, 480, 984,
701 ov5640_init_setting_30fps_VGA,
702 ARRAY_SIZE(ov5640_init_setting_30fps_VGA),
703 };
704
705 static const struct ov5640_mode_info
706 ov5640_mode_data[OV5640_NUM_FRAMERATES][OV5640_NUM_MODES] = {
707 {
708 {OV5640_MODE_QCIF_176_144, SUBSAMPLING,
709 176, 1896, 144, 984,
710 ov5640_setting_15fps_QCIF_176_144,
711 ARRAY_SIZE(ov5640_setting_15fps_QCIF_176_144)},
712 {OV5640_MODE_QVGA_320_240, SUBSAMPLING,
713 320, 1896, 240, 984,
714 ov5640_setting_15fps_QVGA_320_240,
715 ARRAY_SIZE(ov5640_setting_15fps_QVGA_320_240)},
716 {OV5640_MODE_VGA_640_480, SUBSAMPLING,
717 640, 1896, 480, 1080,
718 ov5640_setting_15fps_VGA_640_480,
719 ARRAY_SIZE(ov5640_setting_15fps_VGA_640_480)},
720 {OV5640_MODE_NTSC_720_480, SUBSAMPLING,
721 720, 1896, 480, 984,
722 ov5640_setting_15fps_NTSC_720_480,
723 ARRAY_SIZE(ov5640_setting_15fps_NTSC_720_480)},
724 {OV5640_MODE_PAL_720_576, SUBSAMPLING,
725 720, 1896, 576, 984,
726 ov5640_setting_15fps_PAL_720_576,
727 ARRAY_SIZE(ov5640_setting_15fps_PAL_720_576)},
728 {OV5640_MODE_XGA_1024_768, SUBSAMPLING,
729 1024, 1896, 768, 1080,
730 ov5640_setting_15fps_XGA_1024_768,
731 ARRAY_SIZE(ov5640_setting_15fps_XGA_1024_768)},
732 {OV5640_MODE_720P_1280_720, SUBSAMPLING,
733 1280, 1892, 720, 740,
734 ov5640_setting_15fps_720P_1280_720,
735 ARRAY_SIZE(ov5640_setting_15fps_720P_1280_720)},
736 {OV5640_MODE_1080P_1920_1080, SCALING,
737 1920, 2500, 1080, 1120,
738 ov5640_setting_15fps_1080P_1920_1080,
739 ARRAY_SIZE(ov5640_setting_15fps_1080P_1920_1080)},
740 {OV5640_MODE_QSXGA_2592_1944, SCALING,
741 2592, 2844, 1944, 1968,
742 ov5640_setting_15fps_QSXGA_2592_1944,
743 ARRAY_SIZE(ov5640_setting_15fps_QSXGA_2592_1944)},
744 }, {
745 {OV5640_MODE_QCIF_176_144, SUBSAMPLING,
746 176, 1896, 144, 984,
747 ov5640_setting_30fps_QCIF_176_144,
748 ARRAY_SIZE(ov5640_setting_30fps_QCIF_176_144)},
749 {OV5640_MODE_QVGA_320_240, SUBSAMPLING,
750 320, 1896, 240, 984,
751 ov5640_setting_30fps_QVGA_320_240,
752 ARRAY_SIZE(ov5640_setting_30fps_QVGA_320_240)},
753 {OV5640_MODE_VGA_640_480, SUBSAMPLING,
754 640, 1896, 480, 1080,
755 ov5640_setting_30fps_VGA_640_480,
756 ARRAY_SIZE(ov5640_setting_30fps_VGA_640_480)},
757 {OV5640_MODE_NTSC_720_480, SUBSAMPLING,
758 720, 1896, 480, 984,
759 ov5640_setting_30fps_NTSC_720_480,
760 ARRAY_SIZE(ov5640_setting_30fps_NTSC_720_480)},
761 {OV5640_MODE_PAL_720_576, SUBSAMPLING,
762 720, 1896, 576, 984,
763 ov5640_setting_30fps_PAL_720_576,
764 ARRAY_SIZE(ov5640_setting_30fps_PAL_720_576)},
765 {OV5640_MODE_XGA_1024_768, SUBSAMPLING,
766 1024, 1896, 768, 1080,
767 ov5640_setting_30fps_XGA_1024_768,
768 ARRAY_SIZE(ov5640_setting_30fps_XGA_1024_768)},
769 {OV5640_MODE_720P_1280_720, SUBSAMPLING,
770 1280, 1892, 720, 740,
771 ov5640_setting_30fps_720P_1280_720,
772 ARRAY_SIZE(ov5640_setting_30fps_720P_1280_720)},
773 {OV5640_MODE_1080P_1920_1080, SCALING,
774 1920, 2500, 1080, 1120,
775 ov5640_setting_30fps_1080P_1920_1080,
776 ARRAY_SIZE(ov5640_setting_30fps_1080P_1920_1080)},
777 {OV5640_MODE_QSXGA_2592_1944, -1, 0, 0, 0, 0, NULL, 0},
778 },
779 };
780
ov5640_init_slave_id(struct ov5640_dev * sensor)781 static int ov5640_init_slave_id(struct ov5640_dev *sensor)
782 {
783 struct i2c_client *client = sensor->i2c_client;
784 struct i2c_msg msg;
785 u8 buf[3];
786 int ret;
787
788 if (client->addr == OV5640_DEFAULT_SLAVE_ID)
789 return 0;
790
791 buf[0] = OV5640_REG_SLAVE_ID >> 8;
792 buf[1] = OV5640_REG_SLAVE_ID & 0xff;
793 buf[2] = client->addr << 1;
794
795 msg.addr = OV5640_DEFAULT_SLAVE_ID;
796 msg.flags = 0;
797 msg.buf = buf;
798 msg.len = sizeof(buf);
799
800 ret = i2c_transfer(client->adapter, &msg, 1);
801 if (ret < 0) {
802 dev_err(&client->dev, "%s: failed with %d\n", __func__, ret);
803 return ret;
804 }
805
806 return 0;
807 }
808
ov5640_write_reg(struct ov5640_dev * sensor,u16 reg,u8 val)809 static int ov5640_write_reg(struct ov5640_dev *sensor, u16 reg, u8 val)
810 {
811 struct i2c_client *client = sensor->i2c_client;
812 struct i2c_msg msg;
813 u8 buf[3];
814 int ret;
815
816 buf[0] = reg >> 8;
817 buf[1] = reg & 0xff;
818 buf[2] = val;
819
820 msg.addr = client->addr;
821 msg.flags = client->flags;
822 msg.buf = buf;
823 msg.len = sizeof(buf);
824
825 ret = i2c_transfer(client->adapter, &msg, 1);
826 if (ret < 0) {
827 dev_err(&client->dev, "%s: error: reg=%x, val=%x\n",
828 __func__, reg, val);
829 return ret;
830 }
831
832 return 0;
833 }
834
ov5640_read_reg(struct ov5640_dev * sensor,u16 reg,u8 * val)835 static int ov5640_read_reg(struct ov5640_dev *sensor, u16 reg, u8 *val)
836 {
837 struct i2c_client *client = sensor->i2c_client;
838 struct i2c_msg msg[2];
839 u8 buf[2];
840 int ret;
841
842 buf[0] = reg >> 8;
843 buf[1] = reg & 0xff;
844
845 msg[0].addr = client->addr;
846 msg[0].flags = client->flags;
847 msg[0].buf = buf;
848 msg[0].len = sizeof(buf);
849
850 msg[1].addr = client->addr;
851 msg[1].flags = client->flags | I2C_M_RD;
852 msg[1].buf = buf;
853 msg[1].len = 1;
854
855 ret = i2c_transfer(client->adapter, msg, 2);
856 if (ret < 0) {
857 dev_err(&client->dev, "%s: error: reg=%x\n",
858 __func__, reg);
859 return ret;
860 }
861
862 *val = buf[0];
863 return 0;
864 }
865
ov5640_read_reg16(struct ov5640_dev * sensor,u16 reg,u16 * val)866 static int ov5640_read_reg16(struct ov5640_dev *sensor, u16 reg, u16 *val)
867 {
868 u8 hi, lo;
869 int ret;
870
871 ret = ov5640_read_reg(sensor, reg, &hi);
872 if (ret)
873 return ret;
874 ret = ov5640_read_reg(sensor, reg + 1, &lo);
875 if (ret)
876 return ret;
877
878 *val = ((u16)hi << 8) | (u16)lo;
879 return 0;
880 }
881
ov5640_write_reg16(struct ov5640_dev * sensor,u16 reg,u16 val)882 static int ov5640_write_reg16(struct ov5640_dev *sensor, u16 reg, u16 val)
883 {
884 int ret;
885
886 ret = ov5640_write_reg(sensor, reg, val >> 8);
887 if (ret)
888 return ret;
889
890 return ov5640_write_reg(sensor, reg + 1, val & 0xff);
891 }
892
ov5640_mod_reg(struct ov5640_dev * sensor,u16 reg,u8 mask,u8 val)893 static int ov5640_mod_reg(struct ov5640_dev *sensor, u16 reg,
894 u8 mask, u8 val)
895 {
896 u8 readval;
897 int ret;
898
899 ret = ov5640_read_reg(sensor, reg, &readval);
900 if (ret)
901 return ret;
902
903 readval &= ~mask;
904 val &= mask;
905 val |= readval;
906
907 return ov5640_write_reg(sensor, reg, val);
908 }
909
910 /* download ov5640 settings to sensor through i2c */
ov5640_load_regs(struct ov5640_dev * sensor,const struct ov5640_mode_info * mode)911 static int ov5640_load_regs(struct ov5640_dev *sensor,
912 const struct ov5640_mode_info *mode)
913 {
914 const struct reg_value *regs = mode->reg_data;
915 unsigned int i;
916 u32 delay_ms;
917 u16 reg_addr;
918 u8 mask, val;
919 int ret = 0;
920
921 for (i = 0; i < mode->reg_data_size; ++i, ++regs) {
922 delay_ms = regs->delay_ms;
923 reg_addr = regs->reg_addr;
924 val = regs->val;
925 mask = regs->mask;
926
927 if (mask)
928 ret = ov5640_mod_reg(sensor, reg_addr, mask, val);
929 else
930 ret = ov5640_write_reg(sensor, reg_addr, val);
931 if (ret)
932 break;
933
934 if (delay_ms)
935 usleep_range(1000 * delay_ms, 1000 * delay_ms + 100);
936 }
937
938 return ret;
939 }
940
941 /* read exposure, in number of line periods */
ov5640_get_exposure(struct ov5640_dev * sensor)942 static int ov5640_get_exposure(struct ov5640_dev *sensor)
943 {
944 int exp, ret;
945 u8 temp;
946
947 ret = ov5640_read_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_HI, &temp);
948 if (ret)
949 return ret;
950 exp = ((int)temp & 0x0f) << 16;
951 ret = ov5640_read_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_MED, &temp);
952 if (ret)
953 return ret;
954 exp |= ((int)temp << 8);
955 ret = ov5640_read_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_LO, &temp);
956 if (ret)
957 return ret;
958 exp |= (int)temp;
959
960 return exp >> 4;
961 }
962
963 /* write exposure, given number of line periods */
ov5640_set_exposure(struct ov5640_dev * sensor,u32 exposure)964 static int ov5640_set_exposure(struct ov5640_dev *sensor, u32 exposure)
965 {
966 int ret;
967
968 exposure <<= 4;
969
970 ret = ov5640_write_reg(sensor,
971 OV5640_REG_AEC_PK_EXPOSURE_LO,
972 exposure & 0xff);
973 if (ret)
974 return ret;
975 ret = ov5640_write_reg(sensor,
976 OV5640_REG_AEC_PK_EXPOSURE_MED,
977 (exposure >> 8) & 0xff);
978 if (ret)
979 return ret;
980 return ov5640_write_reg(sensor,
981 OV5640_REG_AEC_PK_EXPOSURE_HI,
982 (exposure >> 16) & 0x0f);
983 }
984
ov5640_get_gain(struct ov5640_dev * sensor)985 static int ov5640_get_gain(struct ov5640_dev *sensor)
986 {
987 u16 gain;
988 int ret;
989
990 ret = ov5640_read_reg16(sensor, OV5640_REG_AEC_PK_REAL_GAIN, &gain);
991 if (ret)
992 return ret;
993
994 return gain & 0x3ff;
995 }
996
ov5640_set_stream_dvp(struct ov5640_dev * sensor,bool on)997 static int ov5640_set_stream_dvp(struct ov5640_dev *sensor, bool on)
998 {
999 int ret;
1000 unsigned int flags = sensor->ep.bus.parallel.flags;
1001 u8 pclk_pol = 0;
1002 u8 hsync_pol = 0;
1003 u8 vsync_pol = 0;
1004
1005 /*
1006 * Note about parallel port configuration.
1007 *
1008 * When configured in parallel mode, the OV5640 will
1009 * output 10 bits data on DVP data lines [9:0].
1010 * If only 8 bits data are wanted, the 8 bits data lines
1011 * of the camera interface must be physically connected
1012 * on the DVP data lines [9:2].
1013 *
1014 * Control lines polarity can be configured through
1015 * devicetree endpoint control lines properties.
1016 * If no endpoint control lines properties are set,
1017 * polarity will be as below:
1018 * - VSYNC: active high
1019 * - HREF: active low
1020 * - PCLK: active low
1021 */
1022
1023 if (on) {
1024 /*
1025 * reset MIPI PCLK/SERCLK divider
1026 *
1027 * SC PLL CONTRL1 0
1028 * - [3..0]: MIPI PCLK/SERCLK divider
1029 */
1030 ret = ov5640_mod_reg(sensor, OV5640_REG_SC_PLL_CTRL1, 0x0f, 0);
1031 if (ret)
1032 return ret;
1033
1034 /*
1035 * configure parallel port control lines polarity
1036 *
1037 * POLARITY CTRL0
1038 * - [5]: PCLK polarity (0: active low, 1: active high)
1039 * - [1]: HREF polarity (0: active low, 1: active high)
1040 * - [0]: VSYNC polarity (mismatch here between
1041 * datasheet and hardware, 0 is active high
1042 * and 1 is active low...)
1043 */
1044 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
1045 pclk_pol = 1;
1046 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
1047 hsync_pol = 1;
1048 if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
1049 vsync_pol = 1;
1050
1051 ret = ov5640_write_reg(sensor,
1052 OV5640_REG_POLARITY_CTRL00,
1053 (pclk_pol << 5) |
1054 (hsync_pol << 1) |
1055 vsync_pol);
1056
1057 if (ret)
1058 return ret;
1059 }
1060
1061 /*
1062 * powerdown MIPI TX/RX PHY & disable MIPI
1063 *
1064 * MIPI CONTROL 00
1065 * 4: PWDN PHY TX
1066 * 3: PWDN PHY RX
1067 * 2: MIPI enable
1068 */
1069 ret = ov5640_write_reg(sensor,
1070 OV5640_REG_IO_MIPI_CTRL00, on ? 0x18 : 0);
1071 if (ret)
1072 return ret;
1073
1074 /*
1075 * enable VSYNC/HREF/PCLK DVP control lines
1076 * & D[9:6] DVP data lines
1077 *
1078 * PAD OUTPUT ENABLE 01
1079 * - 6: VSYNC output enable
1080 * - 5: HREF output enable
1081 * - 4: PCLK output enable
1082 * - [3:0]: D[9:6] output enable
1083 */
1084 ret = ov5640_write_reg(sensor,
1085 OV5640_REG_PAD_OUTPUT_ENABLE01,
1086 on ? 0x7f : 0);
1087 if (ret)
1088 return ret;
1089
1090 /*
1091 * enable D[5:0] DVP data lines
1092 *
1093 * PAD OUTPUT ENABLE 02
1094 * - [7:2]: D[5:0] output enable
1095 */
1096 return ov5640_write_reg(sensor,
1097 OV5640_REG_PAD_OUTPUT_ENABLE02,
1098 on ? 0xfc : 0);
1099 }
1100
ov5640_set_stream_mipi(struct ov5640_dev * sensor,bool on)1101 static int ov5640_set_stream_mipi(struct ov5640_dev *sensor, bool on)
1102 {
1103 int ret;
1104
1105 ret = ov5640_mod_reg(sensor, OV5640_REG_MIPI_CTRL00, BIT(5),
1106 on ? 0 : BIT(5));
1107 if (ret)
1108 return ret;
1109 ret = ov5640_write_reg(sensor, OV5640_REG_PAD_OUTPUT00,
1110 on ? 0x00 : 0x70);
1111 if (ret)
1112 return ret;
1113
1114 return ov5640_write_reg(sensor, OV5640_REG_FRAME_CTRL01,
1115 on ? 0x00 : 0x0f);
1116 }
1117
ov5640_get_sysclk(struct ov5640_dev * sensor)1118 static int ov5640_get_sysclk(struct ov5640_dev *sensor)
1119 {
1120 /* calculate sysclk */
1121 u32 xvclk = sensor->xclk_freq / 10000;
1122 u32 multiplier, prediv, VCO, sysdiv, pll_rdiv;
1123 u32 sclk_rdiv_map[] = {1, 2, 4, 8};
1124 u32 bit_div2x = 1, sclk_rdiv, sysclk;
1125 u8 temp1, temp2;
1126 int ret;
1127
1128 ret = ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL0, &temp1);
1129 if (ret)
1130 return ret;
1131 temp2 = temp1 & 0x0f;
1132 if (temp2 == 8 || temp2 == 10)
1133 bit_div2x = temp2 / 2;
1134
1135 ret = ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL1, &temp1);
1136 if (ret)
1137 return ret;
1138 sysdiv = temp1 >> 4;
1139 if (sysdiv == 0)
1140 sysdiv = 16;
1141
1142 ret = ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL2, &temp1);
1143 if (ret)
1144 return ret;
1145 multiplier = temp1;
1146
1147 ret = ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL3, &temp1);
1148 if (ret)
1149 return ret;
1150 prediv = temp1 & 0x0f;
1151 pll_rdiv = ((temp1 >> 4) & 0x01) + 1;
1152
1153 ret = ov5640_read_reg(sensor, OV5640_REG_SYS_ROOT_DIVIDER, &temp1);
1154 if (ret)
1155 return ret;
1156 temp2 = temp1 & 0x03;
1157 sclk_rdiv = sclk_rdiv_map[temp2];
1158
1159 if (!prediv || !sysdiv || !pll_rdiv || !bit_div2x)
1160 return -EINVAL;
1161
1162 VCO = xvclk * multiplier / prediv;
1163
1164 sysclk = VCO / sysdiv / pll_rdiv * 2 / bit_div2x / sclk_rdiv;
1165
1166 return sysclk;
1167 }
1168
ov5640_set_night_mode(struct ov5640_dev * sensor)1169 static int ov5640_set_night_mode(struct ov5640_dev *sensor)
1170 {
1171 /* read HTS from register settings */
1172 u8 mode;
1173 int ret;
1174
1175 ret = ov5640_read_reg(sensor, OV5640_REG_AEC_CTRL00, &mode);
1176 if (ret)
1177 return ret;
1178 mode &= 0xfb;
1179 return ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL00, mode);
1180 }
1181
ov5640_get_hts(struct ov5640_dev * sensor)1182 static int ov5640_get_hts(struct ov5640_dev *sensor)
1183 {
1184 /* read HTS from register settings */
1185 u16 hts;
1186 int ret;
1187
1188 ret = ov5640_read_reg16(sensor, OV5640_REG_TIMING_HTS, &hts);
1189 if (ret)
1190 return ret;
1191 return hts;
1192 }
1193
ov5640_get_vts(struct ov5640_dev * sensor)1194 static int ov5640_get_vts(struct ov5640_dev *sensor)
1195 {
1196 u16 vts;
1197 int ret;
1198
1199 ret = ov5640_read_reg16(sensor, OV5640_REG_TIMING_VTS, &vts);
1200 if (ret)
1201 return ret;
1202 return vts;
1203 }
1204
ov5640_set_vts(struct ov5640_dev * sensor,int vts)1205 static int ov5640_set_vts(struct ov5640_dev *sensor, int vts)
1206 {
1207 return ov5640_write_reg16(sensor, OV5640_REG_TIMING_VTS, vts);
1208 }
1209
ov5640_get_light_freq(struct ov5640_dev * sensor)1210 static int ov5640_get_light_freq(struct ov5640_dev *sensor)
1211 {
1212 /* get banding filter value */
1213 int ret, light_freq = 0;
1214 u8 temp, temp1;
1215
1216 ret = ov5640_read_reg(sensor, OV5640_REG_HZ5060_CTRL01, &temp);
1217 if (ret)
1218 return ret;
1219
1220 if (temp & 0x80) {
1221 /* manual */
1222 ret = ov5640_read_reg(sensor, OV5640_REG_HZ5060_CTRL00,
1223 &temp1);
1224 if (ret)
1225 return ret;
1226 if (temp1 & 0x04) {
1227 /* 50Hz */
1228 light_freq = 50;
1229 } else {
1230 /* 60Hz */
1231 light_freq = 60;
1232 }
1233 } else {
1234 /* auto */
1235 ret = ov5640_read_reg(sensor, OV5640_REG_SIGMADELTA_CTRL0C,
1236 &temp1);
1237 if (ret)
1238 return ret;
1239
1240 if (temp1 & 0x01) {
1241 /* 50Hz */
1242 light_freq = 50;
1243 } else {
1244 /* 60Hz */
1245 }
1246 }
1247
1248 return light_freq;
1249 }
1250
ov5640_set_bandingfilter(struct ov5640_dev * sensor)1251 static int ov5640_set_bandingfilter(struct ov5640_dev *sensor)
1252 {
1253 u32 band_step60, max_band60, band_step50, max_band50, prev_vts;
1254 int ret;
1255
1256 /* read preview PCLK */
1257 ret = ov5640_get_sysclk(sensor);
1258 if (ret < 0)
1259 return ret;
1260 if (ret == 0)
1261 return -EINVAL;
1262 sensor->prev_sysclk = ret;
1263 /* read preview HTS */
1264 ret = ov5640_get_hts(sensor);
1265 if (ret < 0)
1266 return ret;
1267 if (ret == 0)
1268 return -EINVAL;
1269 sensor->prev_hts = ret;
1270
1271 /* read preview VTS */
1272 ret = ov5640_get_vts(sensor);
1273 if (ret < 0)
1274 return ret;
1275 prev_vts = ret;
1276
1277 /* calculate banding filter */
1278 /* 60Hz */
1279 band_step60 = sensor->prev_sysclk * 100 / sensor->prev_hts * 100 / 120;
1280 ret = ov5640_write_reg16(sensor, OV5640_REG_AEC_B60_STEP, band_step60);
1281 if (ret)
1282 return ret;
1283 if (!band_step60)
1284 return -EINVAL;
1285 max_band60 = (int)((prev_vts - 4) / band_step60);
1286 ret = ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL0D, max_band60);
1287 if (ret)
1288 return ret;
1289
1290 /* 50Hz */
1291 band_step50 = sensor->prev_sysclk * 100 / sensor->prev_hts;
1292 ret = ov5640_write_reg16(sensor, OV5640_REG_AEC_B50_STEP, band_step50);
1293 if (ret)
1294 return ret;
1295 if (!band_step50)
1296 return -EINVAL;
1297 max_band50 = (int)((prev_vts - 4) / band_step50);
1298 return ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL0E, max_band50);
1299 }
1300
ov5640_set_ae_target(struct ov5640_dev * sensor,int target)1301 static int ov5640_set_ae_target(struct ov5640_dev *sensor, int target)
1302 {
1303 /* stable in high */
1304 u32 fast_high, fast_low;
1305 int ret;
1306
1307 sensor->ae_low = target * 23 / 25; /* 0.92 */
1308 sensor->ae_high = target * 27 / 25; /* 1.08 */
1309
1310 fast_high = sensor->ae_high << 1;
1311 if (fast_high > 255)
1312 fast_high = 255;
1313
1314 fast_low = sensor->ae_low >> 1;
1315
1316 ret = ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL0F, sensor->ae_high);
1317 if (ret)
1318 return ret;
1319 ret = ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL10, sensor->ae_low);
1320 if (ret)
1321 return ret;
1322 ret = ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1B, sensor->ae_high);
1323 if (ret)
1324 return ret;
1325 ret = ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1E, sensor->ae_low);
1326 if (ret)
1327 return ret;
1328 ret = ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL11, fast_high);
1329 if (ret)
1330 return ret;
1331 return ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1F, fast_low);
1332 }
1333
ov5640_binning_on(struct ov5640_dev * sensor)1334 static int ov5640_binning_on(struct ov5640_dev *sensor)
1335 {
1336 u8 temp;
1337 int ret;
1338
1339 ret = ov5640_read_reg(sensor, OV5640_REG_TIMING_TC_REG21, &temp);
1340 if (ret)
1341 return ret;
1342 temp &= 0xfe;
1343 return temp ? 1 : 0;
1344 }
1345
ov5640_set_binning(struct ov5640_dev * sensor,bool enable)1346 static int ov5640_set_binning(struct ov5640_dev *sensor, bool enable)
1347 {
1348 int ret;
1349
1350 /*
1351 * TIMING TC REG21:
1352 * - [0]: Horizontal binning enable
1353 */
1354 ret = ov5640_mod_reg(sensor, OV5640_REG_TIMING_TC_REG21,
1355 BIT(0), enable ? BIT(0) : 0);
1356 if (ret)
1357 return ret;
1358 /*
1359 * TIMING TC REG20:
1360 * - [0]: Undocumented, but hardcoded init sequences
1361 * are always setting REG21/REG20 bit 0 to same value...
1362 */
1363 return ov5640_mod_reg(sensor, OV5640_REG_TIMING_TC_REG20,
1364 BIT(0), enable ? BIT(0) : 0);
1365 }
1366
ov5640_set_virtual_channel(struct ov5640_dev * sensor)1367 static int ov5640_set_virtual_channel(struct ov5640_dev *sensor)
1368 {
1369 struct i2c_client *client = sensor->i2c_client;
1370 u8 temp, channel = virtual_channel;
1371 int ret;
1372
1373 if (channel > 3) {
1374 dev_err(&client->dev,
1375 "%s: wrong virtual_channel parameter, expected (0..3), got %d\n",
1376 __func__, channel);
1377 return -EINVAL;
1378 }
1379
1380 ret = ov5640_read_reg(sensor, OV5640_REG_DEBUG_MODE, &temp);
1381 if (ret)
1382 return ret;
1383 temp &= ~(3 << 6);
1384 temp |= (channel << 6);
1385 return ov5640_write_reg(sensor, OV5640_REG_DEBUG_MODE, temp);
1386 }
1387
ov5640_set_timings(struct ov5640_dev * sensor,const struct ov5640_mode_info * mode)1388 static int ov5640_set_timings(struct ov5640_dev *sensor,
1389 const struct ov5640_mode_info *mode)
1390 {
1391 int ret;
1392
1393 ret = ov5640_write_reg16(sensor, OV5640_REG_TIMING_DVPHO, mode->hact);
1394 if (ret < 0)
1395 return ret;
1396
1397 ret = ov5640_write_reg16(sensor, OV5640_REG_TIMING_DVPVO, mode->vact);
1398 if (ret < 0)
1399 return ret;
1400
1401 ret = ov5640_write_reg16(sensor, OV5640_REG_TIMING_HTS, mode->htot);
1402 if (ret < 0)
1403 return ret;
1404
1405 ret = ov5640_write_reg16(sensor, OV5640_REG_TIMING_VTS, mode->vtot);
1406 if (ret < 0)
1407 return ret;
1408
1409 return 0;
1410 }
1411
1412 static const struct ov5640_mode_info *
ov5640_find_mode(struct ov5640_dev * sensor,enum ov5640_frame_rate fr,int width,int height,bool nearest)1413 ov5640_find_mode(struct ov5640_dev *sensor, enum ov5640_frame_rate fr,
1414 int width, int height, bool nearest)
1415 {
1416 const struct ov5640_mode_info *mode;
1417
1418 mode = v4l2_find_nearest_size(ov5640_mode_data[fr],
1419 ARRAY_SIZE(ov5640_mode_data[fr]),
1420 hact, vact,
1421 width, height);
1422
1423 if (!mode ||
1424 (!nearest && (mode->hact != width || mode->vact != height)))
1425 return NULL;
1426
1427 return mode;
1428 }
1429
1430 /*
1431 * sensor changes between scaling and subsampling, go through
1432 * exposure calculation
1433 */
ov5640_set_mode_exposure_calc(struct ov5640_dev * sensor,const struct ov5640_mode_info * mode)1434 static int ov5640_set_mode_exposure_calc(struct ov5640_dev *sensor,
1435 const struct ov5640_mode_info *mode)
1436 {
1437 u32 prev_shutter, prev_gain16;
1438 u32 cap_shutter, cap_gain16;
1439 u32 cap_sysclk, cap_hts, cap_vts;
1440 u32 light_freq, cap_bandfilt, cap_maxband;
1441 u32 cap_gain16_shutter;
1442 u8 average;
1443 int ret;
1444
1445 if (!mode->reg_data)
1446 return -EINVAL;
1447
1448 /* read preview shutter */
1449 ret = ov5640_get_exposure(sensor);
1450 if (ret < 0)
1451 return ret;
1452 prev_shutter = ret;
1453 ret = ov5640_binning_on(sensor);
1454 if (ret < 0)
1455 return ret;
1456 if (ret && mode->id != OV5640_MODE_720P_1280_720 &&
1457 mode->id != OV5640_MODE_1080P_1920_1080)
1458 prev_shutter *= 2;
1459
1460 /* read preview gain */
1461 ret = ov5640_get_gain(sensor);
1462 if (ret < 0)
1463 return ret;
1464 prev_gain16 = ret;
1465
1466 /* get average */
1467 ret = ov5640_read_reg(sensor, OV5640_REG_AVG_READOUT, &average);
1468 if (ret)
1469 return ret;
1470
1471 /* turn off night mode for capture */
1472 ret = ov5640_set_night_mode(sensor);
1473 if (ret < 0)
1474 return ret;
1475
1476 /* Write capture setting */
1477 ret = ov5640_load_regs(sensor, mode);
1478 if (ret < 0)
1479 return ret;
1480
1481 /* read capture VTS */
1482 ret = ov5640_get_vts(sensor);
1483 if (ret < 0)
1484 return ret;
1485 cap_vts = ret;
1486 ret = ov5640_get_hts(sensor);
1487 if (ret < 0)
1488 return ret;
1489 if (ret == 0)
1490 return -EINVAL;
1491 cap_hts = ret;
1492
1493 ret = ov5640_get_sysclk(sensor);
1494 if (ret < 0)
1495 return ret;
1496 if (ret == 0)
1497 return -EINVAL;
1498 cap_sysclk = ret;
1499
1500 /* calculate capture banding filter */
1501 ret = ov5640_get_light_freq(sensor);
1502 if (ret < 0)
1503 return ret;
1504 light_freq = ret;
1505
1506 if (light_freq == 60) {
1507 /* 60Hz */
1508 cap_bandfilt = cap_sysclk * 100 / cap_hts * 100 / 120;
1509 } else {
1510 /* 50Hz */
1511 cap_bandfilt = cap_sysclk * 100 / cap_hts;
1512 }
1513
1514 if (!sensor->prev_sysclk) {
1515 ret = ov5640_get_sysclk(sensor);
1516 if (ret < 0)
1517 return ret;
1518 if (ret == 0)
1519 return -EINVAL;
1520 sensor->prev_sysclk = ret;
1521 }
1522
1523 if (!cap_bandfilt)
1524 return -EINVAL;
1525
1526 cap_maxband = (int)((cap_vts - 4) / cap_bandfilt);
1527
1528 /* calculate capture shutter/gain16 */
1529 if (average > sensor->ae_low && average < sensor->ae_high) {
1530 /* in stable range */
1531 cap_gain16_shutter =
1532 prev_gain16 * prev_shutter *
1533 cap_sysclk / sensor->prev_sysclk *
1534 sensor->prev_hts / cap_hts *
1535 sensor->ae_target / average;
1536 } else {
1537 cap_gain16_shutter =
1538 prev_gain16 * prev_shutter *
1539 cap_sysclk / sensor->prev_sysclk *
1540 sensor->prev_hts / cap_hts;
1541 }
1542
1543 /* gain to shutter */
1544 if (cap_gain16_shutter < (cap_bandfilt * 16)) {
1545 /* shutter < 1/100 */
1546 cap_shutter = cap_gain16_shutter / 16;
1547 if (cap_shutter < 1)
1548 cap_shutter = 1;
1549
1550 cap_gain16 = cap_gain16_shutter / cap_shutter;
1551 if (cap_gain16 < 16)
1552 cap_gain16 = 16;
1553 } else {
1554 if (cap_gain16_shutter > (cap_bandfilt * cap_maxband * 16)) {
1555 /* exposure reach max */
1556 cap_shutter = cap_bandfilt * cap_maxband;
1557 if (!cap_shutter)
1558 return -EINVAL;
1559
1560 cap_gain16 = cap_gain16_shutter / cap_shutter;
1561 } else {
1562 /* 1/100 < (cap_shutter = n/100) =< max */
1563 cap_shutter =
1564 ((int)(cap_gain16_shutter / 16 / cap_bandfilt))
1565 * cap_bandfilt;
1566 if (!cap_shutter)
1567 return -EINVAL;
1568
1569 cap_gain16 = cap_gain16_shutter / cap_shutter;
1570 }
1571 }
1572
1573 /* set capture gain */
1574 ret = __v4l2_ctrl_s_ctrl(sensor->ctrls.gain, cap_gain16);
1575 if (ret)
1576 return ret;
1577
1578 /* write capture shutter */
1579 if (cap_shutter > (cap_vts - 4)) {
1580 cap_vts = cap_shutter + 4;
1581 ret = ov5640_set_vts(sensor, cap_vts);
1582 if (ret < 0)
1583 return ret;
1584 }
1585
1586 /* set exposure */
1587 return __v4l2_ctrl_s_ctrl(sensor->ctrls.exposure, cap_shutter);
1588 }
1589
1590 /*
1591 * if sensor changes inside scaling or subsampling
1592 * change mode directly
1593 */
ov5640_set_mode_direct(struct ov5640_dev * sensor,const struct ov5640_mode_info * mode,s32 exposure)1594 static int ov5640_set_mode_direct(struct ov5640_dev *sensor,
1595 const struct ov5640_mode_info *mode,
1596 s32 exposure)
1597 {
1598 int ret;
1599
1600 if (!mode->reg_data)
1601 return -EINVAL;
1602
1603 /* Write capture setting */
1604 ret = ov5640_load_regs(sensor, mode);
1605 if (ret < 0)
1606 return ret;
1607
1608 /* turn auto gain/exposure back on for direct mode */
1609 ret = __v4l2_ctrl_s_ctrl(sensor->ctrls.auto_gain, 1);
1610 if (ret)
1611 return ret;
1612
1613 return __v4l2_ctrl_s_ctrl(sensor->ctrls.auto_exp, exposure);
1614 }
1615
ov5640_set_mode(struct ov5640_dev * sensor,const struct ov5640_mode_info * orig_mode)1616 static int ov5640_set_mode(struct ov5640_dev *sensor,
1617 const struct ov5640_mode_info *orig_mode)
1618 {
1619 const struct ov5640_mode_info *mode = sensor->current_mode;
1620 enum ov5640_downsize_mode dn_mode, orig_dn_mode;
1621 s32 exposure;
1622 int ret;
1623
1624 dn_mode = mode->dn_mode;
1625 orig_dn_mode = orig_mode->dn_mode;
1626
1627 /* auto gain and exposure must be turned off when changing modes */
1628 ret = __v4l2_ctrl_s_ctrl(sensor->ctrls.auto_gain, 0);
1629 if (ret)
1630 return ret;
1631
1632 exposure = sensor->ctrls.auto_exp->val;
1633 ret = ov5640_set_exposure(sensor, V4L2_EXPOSURE_MANUAL);
1634 if (ret)
1635 return ret;
1636
1637 if ((dn_mode == SUBSAMPLING && orig_dn_mode == SCALING) ||
1638 (dn_mode == SCALING && orig_dn_mode == SUBSAMPLING)) {
1639 /*
1640 * change between subsampling and scaling
1641 * go through exposure calucation
1642 */
1643 ret = ov5640_set_mode_exposure_calc(sensor, mode);
1644 } else {
1645 /*
1646 * change inside subsampling or scaling
1647 * download firmware directly
1648 */
1649 ret = ov5640_set_mode_direct(sensor, mode, exposure);
1650 }
1651
1652 if (ret < 0)
1653 return ret;
1654
1655 ret = ov5640_set_timings(sensor, mode);
1656 if (ret < 0)
1657 return ret;
1658
1659 ret = ov5640_set_binning(sensor, dn_mode != SCALING);
1660 if (ret < 0)
1661 return ret;
1662 ret = ov5640_set_ae_target(sensor, sensor->ae_target);
1663 if (ret < 0)
1664 return ret;
1665 ret = ov5640_get_light_freq(sensor);
1666 if (ret < 0)
1667 return ret;
1668 ret = ov5640_set_bandingfilter(sensor);
1669 if (ret < 0)
1670 return ret;
1671 ret = ov5640_set_virtual_channel(sensor);
1672 if (ret < 0)
1673 return ret;
1674
1675 sensor->pending_mode_change = false;
1676
1677 return 0;
1678 }
1679
1680 static int ov5640_set_framefmt(struct ov5640_dev *sensor,
1681 struct v4l2_mbus_framefmt *format);
1682
1683 /* restore the last set video mode after chip power-on */
ov5640_restore_mode(struct ov5640_dev * sensor)1684 static int ov5640_restore_mode(struct ov5640_dev *sensor)
1685 {
1686 int ret;
1687
1688 /* first load the initial register values */
1689 ret = ov5640_load_regs(sensor, &ov5640_mode_init_data);
1690 if (ret < 0)
1691 return ret;
1692
1693 ret = ov5640_mod_reg(sensor, OV5640_REG_SYS_ROOT_DIVIDER, 0x3f,
1694 (ilog2(OV5640_SCLK2X_ROOT_DIVIDER_DEFAULT) << 2) |
1695 ilog2(OV5640_SCLK_ROOT_DIVIDER_DEFAULT));
1696 if (ret)
1697 return ret;
1698
1699 /* now restore the last capture mode */
1700 ret = ov5640_set_mode(sensor, &ov5640_mode_init_data);
1701 if (ret < 0)
1702 return ret;
1703
1704 return ov5640_set_framefmt(sensor, &sensor->fmt);
1705 }
1706
ov5640_power(struct ov5640_dev * sensor,bool enable)1707 static void ov5640_power(struct ov5640_dev *sensor, bool enable)
1708 {
1709 gpiod_set_value_cansleep(sensor->pwdn_gpio, enable ? 0 : 1);
1710 }
1711
ov5640_reset(struct ov5640_dev * sensor)1712 static void ov5640_reset(struct ov5640_dev *sensor)
1713 {
1714 if (!sensor->reset_gpio)
1715 return;
1716
1717 gpiod_set_value_cansleep(sensor->reset_gpio, 0);
1718
1719 /* camera power cycle */
1720 ov5640_power(sensor, false);
1721 usleep_range(5000, 10000);
1722 ov5640_power(sensor, true);
1723 usleep_range(5000, 10000);
1724
1725 gpiod_set_value_cansleep(sensor->reset_gpio, 1);
1726 usleep_range(1000, 2000);
1727
1728 gpiod_set_value_cansleep(sensor->reset_gpio, 0);
1729 usleep_range(5000, 10000);
1730 }
1731
ov5640_set_power_on(struct ov5640_dev * sensor)1732 static int ov5640_set_power_on(struct ov5640_dev *sensor)
1733 {
1734 struct i2c_client *client = sensor->i2c_client;
1735 int ret;
1736
1737 ret = clk_prepare_enable(sensor->xclk);
1738 if (ret) {
1739 dev_err(&client->dev, "%s: failed to enable clock\n",
1740 __func__);
1741 return ret;
1742 }
1743
1744 ret = regulator_bulk_enable(OV5640_NUM_SUPPLIES,
1745 sensor->supplies);
1746 if (ret) {
1747 dev_err(&client->dev, "%s: failed to enable regulators\n",
1748 __func__);
1749 goto xclk_off;
1750 }
1751
1752 ov5640_reset(sensor);
1753 ov5640_power(sensor, true);
1754
1755 ret = ov5640_init_slave_id(sensor);
1756 if (ret)
1757 goto power_off;
1758
1759 return 0;
1760
1761 power_off:
1762 ov5640_power(sensor, false);
1763 regulator_bulk_disable(OV5640_NUM_SUPPLIES, sensor->supplies);
1764 xclk_off:
1765 clk_disable_unprepare(sensor->xclk);
1766 return ret;
1767 }
1768
ov5640_set_power_off(struct ov5640_dev * sensor)1769 static void ov5640_set_power_off(struct ov5640_dev *sensor)
1770 {
1771 ov5640_power(sensor, false);
1772 regulator_bulk_disable(OV5640_NUM_SUPPLIES, sensor->supplies);
1773 clk_disable_unprepare(sensor->xclk);
1774 }
1775
ov5640_set_power(struct ov5640_dev * sensor,bool on)1776 static int ov5640_set_power(struct ov5640_dev *sensor, bool on)
1777 {
1778 int ret = 0;
1779
1780 if (on) {
1781 ret = ov5640_set_power_on(sensor);
1782 if (ret)
1783 return ret;
1784
1785 ret = ov5640_restore_mode(sensor);
1786 if (ret)
1787 goto power_off;
1788
1789 if (sensor->ep.bus_type == V4L2_MBUS_CSI2) {
1790 /*
1791 * start streaming briefly followed by stream off in
1792 * order to coax the clock lane into LP-11 state.
1793 */
1794 ret = ov5640_set_stream_mipi(sensor, true);
1795 if (ret)
1796 goto power_off;
1797 usleep_range(1000, 2000);
1798 ret = ov5640_set_stream_mipi(sensor, false);
1799 if (ret)
1800 goto power_off;
1801 }
1802
1803 return 0;
1804 }
1805
1806 power_off:
1807 ov5640_set_power_off(sensor);
1808 return ret;
1809 }
1810
1811 /* --------------- Subdev Operations --------------- */
1812
ov5640_s_power(struct v4l2_subdev * sd,int on)1813 static int ov5640_s_power(struct v4l2_subdev *sd, int on)
1814 {
1815 struct ov5640_dev *sensor = to_ov5640_dev(sd);
1816 int ret = 0;
1817
1818 mutex_lock(&sensor->lock);
1819
1820 /*
1821 * If the power count is modified from 0 to != 0 or from != 0 to 0,
1822 * update the power state.
1823 */
1824 if (sensor->power_count == !on) {
1825 ret = ov5640_set_power(sensor, !!on);
1826 if (ret)
1827 goto out;
1828 }
1829
1830 /* Update the power count. */
1831 sensor->power_count += on ? 1 : -1;
1832 WARN_ON(sensor->power_count < 0);
1833 out:
1834 mutex_unlock(&sensor->lock);
1835
1836 if (on && !ret && sensor->power_count == 1) {
1837 /* restore controls */
1838 ret = v4l2_ctrl_handler_setup(&sensor->ctrls.handler);
1839 }
1840
1841 return ret;
1842 }
1843
ov5640_try_frame_interval(struct ov5640_dev * sensor,struct v4l2_fract * fi,u32 width,u32 height)1844 static int ov5640_try_frame_interval(struct ov5640_dev *sensor,
1845 struct v4l2_fract *fi,
1846 u32 width, u32 height)
1847 {
1848 const struct ov5640_mode_info *mode;
1849 u32 minfps, maxfps, fps;
1850 int ret;
1851
1852 minfps = ov5640_framerates[OV5640_15_FPS];
1853 maxfps = ov5640_framerates[OV5640_30_FPS];
1854
1855 if (fi->numerator == 0) {
1856 fi->denominator = maxfps;
1857 fi->numerator = 1;
1858 return OV5640_30_FPS;
1859 }
1860
1861 fps = DIV_ROUND_CLOSEST(fi->denominator, fi->numerator);
1862
1863 fi->numerator = 1;
1864 if (fps > maxfps)
1865 fi->denominator = maxfps;
1866 else if (fps < minfps)
1867 fi->denominator = minfps;
1868 else if (2 * fps >= 2 * minfps + (maxfps - minfps))
1869 fi->denominator = maxfps;
1870 else
1871 fi->denominator = minfps;
1872
1873 ret = (fi->denominator == minfps) ? OV5640_15_FPS : OV5640_30_FPS;
1874
1875 mode = ov5640_find_mode(sensor, ret, width, height, false);
1876 return mode ? ret : -EINVAL;
1877 }
1878
ov5640_get_fmt(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * format)1879 static int ov5640_get_fmt(struct v4l2_subdev *sd,
1880 struct v4l2_subdev_pad_config *cfg,
1881 struct v4l2_subdev_format *format)
1882 {
1883 struct ov5640_dev *sensor = to_ov5640_dev(sd);
1884 struct v4l2_mbus_framefmt *fmt;
1885
1886 if (format->pad != 0)
1887 return -EINVAL;
1888
1889 mutex_lock(&sensor->lock);
1890
1891 if (format->which == V4L2_SUBDEV_FORMAT_TRY)
1892 fmt = v4l2_subdev_get_try_format(&sensor->sd, cfg,
1893 format->pad);
1894 else
1895 fmt = &sensor->fmt;
1896
1897 format->format = *fmt;
1898
1899 mutex_unlock(&sensor->lock);
1900
1901 return 0;
1902 }
1903
ov5640_try_fmt_internal(struct v4l2_subdev * sd,struct v4l2_mbus_framefmt * fmt,enum ov5640_frame_rate fr,const struct ov5640_mode_info ** new_mode)1904 static int ov5640_try_fmt_internal(struct v4l2_subdev *sd,
1905 struct v4l2_mbus_framefmt *fmt,
1906 enum ov5640_frame_rate fr,
1907 const struct ov5640_mode_info **new_mode)
1908 {
1909 struct ov5640_dev *sensor = to_ov5640_dev(sd);
1910 const struct ov5640_mode_info *mode;
1911 int i;
1912
1913 mode = ov5640_find_mode(sensor, fr, fmt->width, fmt->height, true);
1914 if (!mode)
1915 return -EINVAL;
1916 fmt->width = mode->hact;
1917 fmt->height = mode->vact;
1918
1919 if (new_mode)
1920 *new_mode = mode;
1921
1922 for (i = 0; i < ARRAY_SIZE(ov5640_formats); i++)
1923 if (ov5640_formats[i].code == fmt->code)
1924 break;
1925 if (i >= ARRAY_SIZE(ov5640_formats))
1926 i = 0;
1927
1928 fmt->code = ov5640_formats[i].code;
1929 fmt->colorspace = ov5640_formats[i].colorspace;
1930 fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
1931 fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
1932 fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
1933
1934 return 0;
1935 }
1936
ov5640_set_fmt(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * format)1937 static int ov5640_set_fmt(struct v4l2_subdev *sd,
1938 struct v4l2_subdev_pad_config *cfg,
1939 struct v4l2_subdev_format *format)
1940 {
1941 struct ov5640_dev *sensor = to_ov5640_dev(sd);
1942 const struct ov5640_mode_info *new_mode;
1943 struct v4l2_mbus_framefmt *mbus_fmt = &format->format;
1944 int ret;
1945
1946 if (format->pad != 0)
1947 return -EINVAL;
1948
1949 mutex_lock(&sensor->lock);
1950
1951 if (sensor->streaming) {
1952 ret = -EBUSY;
1953 goto out;
1954 }
1955
1956 ret = ov5640_try_fmt_internal(sd, mbus_fmt,
1957 sensor->current_fr, &new_mode);
1958 if (ret)
1959 goto out;
1960
1961 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
1962 struct v4l2_mbus_framefmt *fmt =
1963 v4l2_subdev_get_try_format(sd, cfg, 0);
1964
1965 *fmt = *mbus_fmt;
1966 goto out;
1967 }
1968
1969 if (new_mode != sensor->current_mode) {
1970 sensor->current_mode = new_mode;
1971 sensor->fmt = *mbus_fmt;
1972 sensor->pending_mode_change = true;
1973 }
1974 out:
1975 mutex_unlock(&sensor->lock);
1976 return ret;
1977 }
1978
ov5640_set_framefmt(struct ov5640_dev * sensor,struct v4l2_mbus_framefmt * format)1979 static int ov5640_set_framefmt(struct ov5640_dev *sensor,
1980 struct v4l2_mbus_framefmt *format)
1981 {
1982 int ret = 0;
1983 bool is_rgb = false;
1984 bool is_jpeg = false;
1985 u8 val;
1986
1987 switch (format->code) {
1988 case MEDIA_BUS_FMT_UYVY8_2X8:
1989 /* YUV422, UYVY */
1990 val = 0x3f;
1991 break;
1992 case MEDIA_BUS_FMT_YUYV8_2X8:
1993 /* YUV422, YUYV */
1994 val = 0x30;
1995 break;
1996 case MEDIA_BUS_FMT_RGB565_2X8_LE:
1997 /* RGB565 {g[2:0],b[4:0]},{r[4:0],g[5:3]} */
1998 val = 0x6F;
1999 is_rgb = true;
2000 break;
2001 case MEDIA_BUS_FMT_RGB565_2X8_BE:
2002 /* RGB565 {r[4:0],g[5:3]},{g[2:0],b[4:0]} */
2003 val = 0x61;
2004 is_rgb = true;
2005 break;
2006 case MEDIA_BUS_FMT_JPEG_1X8:
2007 /* YUV422, YUYV */
2008 val = 0x30;
2009 is_jpeg = true;
2010 break;
2011 default:
2012 return -EINVAL;
2013 }
2014
2015 /* FORMAT CONTROL00: YUV and RGB formatting */
2016 ret = ov5640_write_reg(sensor, OV5640_REG_FORMAT_CONTROL00, val);
2017 if (ret)
2018 return ret;
2019
2020 /* FORMAT MUX CONTROL: ISP YUV or RGB */
2021 ret = ov5640_write_reg(sensor, OV5640_REG_ISP_FORMAT_MUX_CTRL,
2022 is_rgb ? 0x01 : 0x00);
2023 if (ret)
2024 return ret;
2025
2026 /*
2027 * TIMING TC REG21:
2028 * - [5]: JPEG enable
2029 */
2030 ret = ov5640_mod_reg(sensor, OV5640_REG_TIMING_TC_REG21,
2031 BIT(5), is_jpeg ? BIT(5) : 0);
2032 if (ret)
2033 return ret;
2034
2035 /*
2036 * SYSTEM RESET02:
2037 * - [4]: Reset JFIFO
2038 * - [3]: Reset SFIFO
2039 * - [2]: Reset JPEG
2040 */
2041 ret = ov5640_mod_reg(sensor, OV5640_REG_SYS_RESET02,
2042 BIT(4) | BIT(3) | BIT(2),
2043 is_jpeg ? 0 : (BIT(4) | BIT(3) | BIT(2)));
2044 if (ret)
2045 return ret;
2046
2047 /*
2048 * CLOCK ENABLE02:
2049 * - [5]: Enable JPEG 2x clock
2050 * - [3]: Enable JPEG clock
2051 */
2052 return ov5640_mod_reg(sensor, OV5640_REG_SYS_CLOCK_ENABLE02,
2053 BIT(5) | BIT(3),
2054 is_jpeg ? (BIT(5) | BIT(3)) : 0);
2055 }
2056
2057 /*
2058 * Sensor Controls.
2059 */
2060
ov5640_set_ctrl_hue(struct ov5640_dev * sensor,int value)2061 static int ov5640_set_ctrl_hue(struct ov5640_dev *sensor, int value)
2062 {
2063 int ret;
2064
2065 if (value) {
2066 ret = ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0,
2067 BIT(0), BIT(0));
2068 if (ret)
2069 return ret;
2070 ret = ov5640_write_reg16(sensor, OV5640_REG_SDE_CTRL1, value);
2071 } else {
2072 ret = ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(0), 0);
2073 }
2074
2075 return ret;
2076 }
2077
ov5640_set_ctrl_contrast(struct ov5640_dev * sensor,int value)2078 static int ov5640_set_ctrl_contrast(struct ov5640_dev *sensor, int value)
2079 {
2080 int ret;
2081
2082 if (value) {
2083 ret = ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0,
2084 BIT(2), BIT(2));
2085 if (ret)
2086 return ret;
2087 ret = ov5640_write_reg(sensor, OV5640_REG_SDE_CTRL5,
2088 value & 0xff);
2089 } else {
2090 ret = ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(2), 0);
2091 }
2092
2093 return ret;
2094 }
2095
ov5640_set_ctrl_saturation(struct ov5640_dev * sensor,int value)2096 static int ov5640_set_ctrl_saturation(struct ov5640_dev *sensor, int value)
2097 {
2098 int ret;
2099
2100 if (value) {
2101 ret = ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0,
2102 BIT(1), BIT(1));
2103 if (ret)
2104 return ret;
2105 ret = ov5640_write_reg(sensor, OV5640_REG_SDE_CTRL3,
2106 value & 0xff);
2107 if (ret)
2108 return ret;
2109 ret = ov5640_write_reg(sensor, OV5640_REG_SDE_CTRL4,
2110 value & 0xff);
2111 } else {
2112 ret = ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(1), 0);
2113 }
2114
2115 return ret;
2116 }
2117
ov5640_set_ctrl_white_balance(struct ov5640_dev * sensor,int awb)2118 static int ov5640_set_ctrl_white_balance(struct ov5640_dev *sensor, int awb)
2119 {
2120 int ret;
2121
2122 ret = ov5640_mod_reg(sensor, OV5640_REG_AWB_MANUAL_CTRL,
2123 BIT(0), awb ? 0 : 1);
2124 if (ret)
2125 return ret;
2126
2127 if (!awb) {
2128 u16 red = (u16)sensor->ctrls.red_balance->val;
2129 u16 blue = (u16)sensor->ctrls.blue_balance->val;
2130
2131 ret = ov5640_write_reg16(sensor, OV5640_REG_AWB_R_GAIN, red);
2132 if (ret)
2133 return ret;
2134 ret = ov5640_write_reg16(sensor, OV5640_REG_AWB_B_GAIN, blue);
2135 }
2136
2137 return ret;
2138 }
2139
ov5640_set_ctrl_exposure(struct ov5640_dev * sensor,int exp)2140 static int ov5640_set_ctrl_exposure(struct ov5640_dev *sensor, int exp)
2141 {
2142 struct ov5640_ctrls *ctrls = &sensor->ctrls;
2143 bool auto_exposure = (exp == V4L2_EXPOSURE_AUTO);
2144 int ret = 0;
2145
2146 if (ctrls->auto_exp->is_new) {
2147 ret = ov5640_mod_reg(sensor, OV5640_REG_AEC_PK_MANUAL,
2148 BIT(0), auto_exposure ? 0 : BIT(0));
2149 if (ret)
2150 return ret;
2151 }
2152
2153 if (!auto_exposure && ctrls->exposure->is_new) {
2154 u16 max_exp;
2155
2156 ret = ov5640_read_reg16(sensor, OV5640_REG_AEC_PK_VTS,
2157 &max_exp);
2158 if (ret)
2159 return ret;
2160 ret = ov5640_get_vts(sensor);
2161 if (ret < 0)
2162 return ret;
2163 max_exp += ret;
2164 ret = 0;
2165
2166 if (ctrls->exposure->val < max_exp)
2167 ret = ov5640_set_exposure(sensor, ctrls->exposure->val);
2168 }
2169
2170 return ret;
2171 }
2172
ov5640_set_ctrl_gain(struct ov5640_dev * sensor,int auto_gain)2173 static int ov5640_set_ctrl_gain(struct ov5640_dev *sensor, int auto_gain)
2174 {
2175 struct ov5640_ctrls *ctrls = &sensor->ctrls;
2176 int ret = 0;
2177
2178 if (ctrls->auto_gain->is_new) {
2179 ret = ov5640_mod_reg(sensor, OV5640_REG_AEC_PK_MANUAL,
2180 BIT(1),
2181 ctrls->auto_gain->val ? 0 : BIT(1));
2182 if (ret)
2183 return ret;
2184 }
2185
2186 if (!auto_gain && ctrls->gain->is_new) {
2187 u16 gain = (u16)ctrls->gain->val;
2188
2189 ret = ov5640_write_reg16(sensor, OV5640_REG_AEC_PK_REAL_GAIN,
2190 gain & 0x3ff);
2191 }
2192
2193 return ret;
2194 }
2195
ov5640_set_ctrl_test_pattern(struct ov5640_dev * sensor,int value)2196 static int ov5640_set_ctrl_test_pattern(struct ov5640_dev *sensor, int value)
2197 {
2198 return ov5640_mod_reg(sensor, OV5640_REG_PRE_ISP_TEST_SET1,
2199 0xa4, value ? 0xa4 : 0);
2200 }
2201
ov5640_set_ctrl_light_freq(struct ov5640_dev * sensor,int value)2202 static int ov5640_set_ctrl_light_freq(struct ov5640_dev *sensor, int value)
2203 {
2204 int ret;
2205
2206 ret = ov5640_mod_reg(sensor, OV5640_REG_HZ5060_CTRL01, BIT(7),
2207 (value == V4L2_CID_POWER_LINE_FREQUENCY_AUTO) ?
2208 0 : BIT(7));
2209 if (ret)
2210 return ret;
2211
2212 return ov5640_mod_reg(sensor, OV5640_REG_HZ5060_CTRL00, BIT(2),
2213 (value == V4L2_CID_POWER_LINE_FREQUENCY_50HZ) ?
2214 BIT(2) : 0);
2215 }
2216
ov5640_set_ctrl_hflip(struct ov5640_dev * sensor,int value)2217 static int ov5640_set_ctrl_hflip(struct ov5640_dev *sensor, int value)
2218 {
2219 /*
2220 * If sensor is mounted upside down, mirror logic is inversed.
2221 *
2222 * Sensor is a BSI (Back Side Illuminated) one,
2223 * so image captured is physically mirrored.
2224 * This is why mirror logic is inversed in
2225 * order to cancel this mirror effect.
2226 */
2227
2228 /*
2229 * TIMING TC REG21:
2230 * - [2]: ISP mirror
2231 * - [1]: Sensor mirror
2232 */
2233 return ov5640_mod_reg(sensor, OV5640_REG_TIMING_TC_REG21,
2234 BIT(2) | BIT(1),
2235 (!(value ^ sensor->upside_down)) ?
2236 (BIT(2) | BIT(1)) : 0);
2237 }
2238
ov5640_set_ctrl_vflip(struct ov5640_dev * sensor,int value)2239 static int ov5640_set_ctrl_vflip(struct ov5640_dev *sensor, int value)
2240 {
2241 /* If sensor is mounted upside down, flip logic is inversed */
2242
2243 /*
2244 * TIMING TC REG20:
2245 * - [2]: ISP vflip
2246 * - [1]: Sensor vflip
2247 */
2248 return ov5640_mod_reg(sensor, OV5640_REG_TIMING_TC_REG20,
2249 BIT(2) | BIT(1),
2250 (value ^ sensor->upside_down) ?
2251 (BIT(2) | BIT(1)) : 0);
2252 }
2253
ov5640_g_volatile_ctrl(struct v4l2_ctrl * ctrl)2254 static int ov5640_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
2255 {
2256 struct v4l2_subdev *sd = ctrl_to_sd(ctrl);
2257 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2258 int val;
2259
2260 /* v4l2_ctrl_lock() locks our own mutex */
2261
2262 switch (ctrl->id) {
2263 case V4L2_CID_AUTOGAIN:
2264 if (!ctrl->val)
2265 return 0;
2266 val = ov5640_get_gain(sensor);
2267 if (val < 0)
2268 return val;
2269 sensor->ctrls.gain->val = val;
2270 break;
2271 case V4L2_CID_EXPOSURE_AUTO:
2272 if (ctrl->val == V4L2_EXPOSURE_MANUAL)
2273 return 0;
2274 val = ov5640_get_exposure(sensor);
2275 if (val < 0)
2276 return val;
2277 sensor->ctrls.exposure->val = val;
2278 break;
2279 }
2280
2281 return 0;
2282 }
2283
ov5640_s_ctrl(struct v4l2_ctrl * ctrl)2284 static int ov5640_s_ctrl(struct v4l2_ctrl *ctrl)
2285 {
2286 struct v4l2_subdev *sd = ctrl_to_sd(ctrl);
2287 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2288 int ret;
2289
2290 /* v4l2_ctrl_lock() locks our own mutex */
2291
2292 /*
2293 * If the device is not powered up by the host driver do
2294 * not apply any controls to H/W at this time. Instead
2295 * the controls will be restored right after power-up.
2296 */
2297 if (sensor->power_count == 0)
2298 return 0;
2299
2300 switch (ctrl->id) {
2301 case V4L2_CID_AUTOGAIN:
2302 ret = ov5640_set_ctrl_gain(sensor, ctrl->val);
2303 break;
2304 case V4L2_CID_EXPOSURE_AUTO:
2305 ret = ov5640_set_ctrl_exposure(sensor, ctrl->val);
2306 break;
2307 case V4L2_CID_AUTO_WHITE_BALANCE:
2308 ret = ov5640_set_ctrl_white_balance(sensor, ctrl->val);
2309 break;
2310 case V4L2_CID_HUE:
2311 ret = ov5640_set_ctrl_hue(sensor, ctrl->val);
2312 break;
2313 case V4L2_CID_CONTRAST:
2314 ret = ov5640_set_ctrl_contrast(sensor, ctrl->val);
2315 break;
2316 case V4L2_CID_SATURATION:
2317 ret = ov5640_set_ctrl_saturation(sensor, ctrl->val);
2318 break;
2319 case V4L2_CID_TEST_PATTERN:
2320 ret = ov5640_set_ctrl_test_pattern(sensor, ctrl->val);
2321 break;
2322 case V4L2_CID_POWER_LINE_FREQUENCY:
2323 ret = ov5640_set_ctrl_light_freq(sensor, ctrl->val);
2324 break;
2325 case V4L2_CID_HFLIP:
2326 ret = ov5640_set_ctrl_hflip(sensor, ctrl->val);
2327 break;
2328 case V4L2_CID_VFLIP:
2329 ret = ov5640_set_ctrl_vflip(sensor, ctrl->val);
2330 break;
2331 default:
2332 ret = -EINVAL;
2333 break;
2334 }
2335
2336 return ret;
2337 }
2338
2339 static const struct v4l2_ctrl_ops ov5640_ctrl_ops = {
2340 .g_volatile_ctrl = ov5640_g_volatile_ctrl,
2341 .s_ctrl = ov5640_s_ctrl,
2342 };
2343
2344 static const char * const test_pattern_menu[] = {
2345 "Disabled",
2346 "Color bars",
2347 };
2348
ov5640_init_controls(struct ov5640_dev * sensor)2349 static int ov5640_init_controls(struct ov5640_dev *sensor)
2350 {
2351 const struct v4l2_ctrl_ops *ops = &ov5640_ctrl_ops;
2352 struct ov5640_ctrls *ctrls = &sensor->ctrls;
2353 struct v4l2_ctrl_handler *hdl = &ctrls->handler;
2354 int ret;
2355
2356 v4l2_ctrl_handler_init(hdl, 32);
2357
2358 /* we can use our own mutex for the ctrl lock */
2359 hdl->lock = &sensor->lock;
2360
2361 /* Auto/manual white balance */
2362 ctrls->auto_wb = v4l2_ctrl_new_std(hdl, ops,
2363 V4L2_CID_AUTO_WHITE_BALANCE,
2364 0, 1, 1, 1);
2365 ctrls->blue_balance = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BLUE_BALANCE,
2366 0, 4095, 1, 0);
2367 ctrls->red_balance = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_RED_BALANCE,
2368 0, 4095, 1, 0);
2369 /* Auto/manual exposure */
2370 ctrls->auto_exp = v4l2_ctrl_new_std_menu(hdl, ops,
2371 V4L2_CID_EXPOSURE_AUTO,
2372 V4L2_EXPOSURE_MANUAL, 0,
2373 V4L2_EXPOSURE_AUTO);
2374 ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE,
2375 0, 65535, 1, 0);
2376 /* Auto/manual gain */
2377 ctrls->auto_gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTOGAIN,
2378 0, 1, 1, 1);
2379 ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN,
2380 0, 1023, 1, 0);
2381
2382 ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION,
2383 0, 255, 1, 64);
2384 ctrls->hue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HUE,
2385 0, 359, 1, 0);
2386 ctrls->contrast = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST,
2387 0, 255, 1, 0);
2388 ctrls->test_pattern =
2389 v4l2_ctrl_new_std_menu_items(hdl, ops, V4L2_CID_TEST_PATTERN,
2390 ARRAY_SIZE(test_pattern_menu) - 1,
2391 0, 0, test_pattern_menu);
2392 ctrls->hflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HFLIP,
2393 0, 1, 1, 0);
2394 ctrls->vflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VFLIP,
2395 0, 1, 1, 0);
2396
2397 ctrls->light_freq =
2398 v4l2_ctrl_new_std_menu(hdl, ops,
2399 V4L2_CID_POWER_LINE_FREQUENCY,
2400 V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
2401 V4L2_CID_POWER_LINE_FREQUENCY_50HZ);
2402
2403 if (hdl->error) {
2404 ret = hdl->error;
2405 goto free_ctrls;
2406 }
2407
2408 ctrls->gain->flags |= V4L2_CTRL_FLAG_VOLATILE;
2409 ctrls->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE;
2410
2411 v4l2_ctrl_auto_cluster(3, &ctrls->auto_wb, 0, false);
2412 v4l2_ctrl_auto_cluster(2, &ctrls->auto_gain, 0, true);
2413 v4l2_ctrl_auto_cluster(2, &ctrls->auto_exp, 1, true);
2414
2415 sensor->sd.ctrl_handler = hdl;
2416 return 0;
2417
2418 free_ctrls:
2419 v4l2_ctrl_handler_free(hdl);
2420 return ret;
2421 }
2422
ov5640_enum_frame_size(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_frame_size_enum * fse)2423 static int ov5640_enum_frame_size(struct v4l2_subdev *sd,
2424 struct v4l2_subdev_pad_config *cfg,
2425 struct v4l2_subdev_frame_size_enum *fse)
2426 {
2427 if (fse->pad != 0)
2428 return -EINVAL;
2429 if (fse->index >= OV5640_NUM_MODES)
2430 return -EINVAL;
2431
2432 fse->min_width =
2433 ov5640_mode_data[0][fse->index].hact;
2434 fse->max_width = fse->min_width;
2435 fse->min_height =
2436 ov5640_mode_data[0][fse->index].vact;
2437 fse->max_height = fse->min_height;
2438
2439 return 0;
2440 }
2441
ov5640_enum_frame_interval(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_frame_interval_enum * fie)2442 static int ov5640_enum_frame_interval(
2443 struct v4l2_subdev *sd,
2444 struct v4l2_subdev_pad_config *cfg,
2445 struct v4l2_subdev_frame_interval_enum *fie)
2446 {
2447 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2448 struct v4l2_fract tpf;
2449 int ret;
2450
2451 if (fie->pad != 0)
2452 return -EINVAL;
2453 if (fie->index >= OV5640_NUM_FRAMERATES)
2454 return -EINVAL;
2455
2456 tpf.numerator = 1;
2457 tpf.denominator = ov5640_framerates[fie->index];
2458
2459 ret = ov5640_try_frame_interval(sensor, &tpf,
2460 fie->width, fie->height);
2461 if (ret < 0)
2462 return -EINVAL;
2463
2464 fie->interval = tpf;
2465 return 0;
2466 }
2467
ov5640_g_frame_interval(struct v4l2_subdev * sd,struct v4l2_subdev_frame_interval * fi)2468 static int ov5640_g_frame_interval(struct v4l2_subdev *sd,
2469 struct v4l2_subdev_frame_interval *fi)
2470 {
2471 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2472
2473 mutex_lock(&sensor->lock);
2474 fi->interval = sensor->frame_interval;
2475 mutex_unlock(&sensor->lock);
2476
2477 return 0;
2478 }
2479
ov5640_s_frame_interval(struct v4l2_subdev * sd,struct v4l2_subdev_frame_interval * fi)2480 static int ov5640_s_frame_interval(struct v4l2_subdev *sd,
2481 struct v4l2_subdev_frame_interval *fi)
2482 {
2483 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2484 const struct ov5640_mode_info *mode;
2485 int frame_rate, ret = 0;
2486
2487 if (fi->pad != 0)
2488 return -EINVAL;
2489
2490 mutex_lock(&sensor->lock);
2491
2492 if (sensor->streaming) {
2493 ret = -EBUSY;
2494 goto out;
2495 }
2496
2497 mode = sensor->current_mode;
2498
2499 frame_rate = ov5640_try_frame_interval(sensor, &fi->interval,
2500 mode->hact, mode->vact);
2501 if (frame_rate < 0)
2502 frame_rate = OV5640_15_FPS;
2503
2504 sensor->current_fr = frame_rate;
2505 sensor->frame_interval = fi->interval;
2506 mode = ov5640_find_mode(sensor, frame_rate, mode->hact,
2507 mode->vact, true);
2508 if (!mode) {
2509 ret = -EINVAL;
2510 goto out;
2511 }
2512
2513 if (mode != sensor->current_mode) {
2514 sensor->current_mode = mode;
2515 sensor->pending_mode_change = true;
2516 }
2517 out:
2518 mutex_unlock(&sensor->lock);
2519 return ret;
2520 }
2521
ov5640_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_mbus_code_enum * code)2522 static int ov5640_enum_mbus_code(struct v4l2_subdev *sd,
2523 struct v4l2_subdev_pad_config *cfg,
2524 struct v4l2_subdev_mbus_code_enum *code)
2525 {
2526 if (code->pad != 0)
2527 return -EINVAL;
2528 if (code->index >= ARRAY_SIZE(ov5640_formats))
2529 return -EINVAL;
2530
2531 code->code = ov5640_formats[code->index].code;
2532 return 0;
2533 }
2534
ov5640_s_stream(struct v4l2_subdev * sd,int enable)2535 static int ov5640_s_stream(struct v4l2_subdev *sd, int enable)
2536 {
2537 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2538 int ret = 0;
2539
2540 mutex_lock(&sensor->lock);
2541
2542 if (sensor->streaming == !enable) {
2543 if (enable && sensor->pending_mode_change) {
2544 ret = ov5640_set_mode(sensor, sensor->current_mode);
2545 if (ret)
2546 goto out;
2547
2548 ret = ov5640_set_framefmt(sensor, &sensor->fmt);
2549 if (ret)
2550 goto out;
2551 }
2552
2553 if (sensor->ep.bus_type == V4L2_MBUS_CSI2)
2554 ret = ov5640_set_stream_mipi(sensor, enable);
2555 else
2556 ret = ov5640_set_stream_dvp(sensor, enable);
2557
2558 if (!ret)
2559 sensor->streaming = enable;
2560 }
2561 out:
2562 mutex_unlock(&sensor->lock);
2563 return ret;
2564 }
2565
2566 static const struct v4l2_subdev_core_ops ov5640_core_ops = {
2567 .s_power = ov5640_s_power,
2568 };
2569
2570 static const struct v4l2_subdev_video_ops ov5640_video_ops = {
2571 .g_frame_interval = ov5640_g_frame_interval,
2572 .s_frame_interval = ov5640_s_frame_interval,
2573 .s_stream = ov5640_s_stream,
2574 };
2575
2576 static const struct v4l2_subdev_pad_ops ov5640_pad_ops = {
2577 .enum_mbus_code = ov5640_enum_mbus_code,
2578 .get_fmt = ov5640_get_fmt,
2579 .set_fmt = ov5640_set_fmt,
2580 .enum_frame_size = ov5640_enum_frame_size,
2581 .enum_frame_interval = ov5640_enum_frame_interval,
2582 };
2583
2584 static const struct v4l2_subdev_ops ov5640_subdev_ops = {
2585 .core = &ov5640_core_ops,
2586 .video = &ov5640_video_ops,
2587 .pad = &ov5640_pad_ops,
2588 };
2589
ov5640_get_regulators(struct ov5640_dev * sensor)2590 static int ov5640_get_regulators(struct ov5640_dev *sensor)
2591 {
2592 int i;
2593
2594 for (i = 0; i < OV5640_NUM_SUPPLIES; i++)
2595 sensor->supplies[i].supply = ov5640_supply_name[i];
2596
2597 return devm_regulator_bulk_get(&sensor->i2c_client->dev,
2598 OV5640_NUM_SUPPLIES,
2599 sensor->supplies);
2600 }
2601
ov5640_check_chip_id(struct ov5640_dev * sensor)2602 static int ov5640_check_chip_id(struct ov5640_dev *sensor)
2603 {
2604 struct i2c_client *client = sensor->i2c_client;
2605 int ret = 0;
2606 u16 chip_id;
2607
2608 ret = ov5640_set_power_on(sensor);
2609 if (ret)
2610 return ret;
2611
2612 ret = ov5640_read_reg16(sensor, OV5640_REG_CHIP_ID, &chip_id);
2613 if (ret) {
2614 dev_err(&client->dev, "%s: failed to read chip identifier\n",
2615 __func__);
2616 goto power_off;
2617 }
2618
2619 if (chip_id != 0x5640) {
2620 dev_err(&client->dev, "%s: wrong chip identifier, expected 0x5640, got 0x%x\n",
2621 __func__, chip_id);
2622 ret = -ENXIO;
2623 }
2624
2625 power_off:
2626 ov5640_set_power_off(sensor);
2627 return ret;
2628 }
2629
ov5640_probe(struct i2c_client * client,const struct i2c_device_id * id)2630 static int ov5640_probe(struct i2c_client *client,
2631 const struct i2c_device_id *id)
2632 {
2633 struct device *dev = &client->dev;
2634 struct fwnode_handle *endpoint;
2635 struct ov5640_dev *sensor;
2636 struct v4l2_mbus_framefmt *fmt;
2637 u32 rotation;
2638 int ret;
2639
2640 sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
2641 if (!sensor)
2642 return -ENOMEM;
2643
2644 sensor->i2c_client = client;
2645 fmt = &sensor->fmt;
2646 fmt->code = ov5640_formats[0].code;
2647 fmt->colorspace = ov5640_formats[0].colorspace;
2648 fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
2649 fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
2650 fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
2651 fmt->width = 640;
2652 fmt->height = 480;
2653 fmt->field = V4L2_FIELD_NONE;
2654 sensor->frame_interval.numerator = 1;
2655 sensor->frame_interval.denominator = ov5640_framerates[OV5640_30_FPS];
2656 sensor->current_fr = OV5640_30_FPS;
2657 sensor->current_mode =
2658 &ov5640_mode_data[OV5640_30_FPS][OV5640_MODE_VGA_640_480];
2659 sensor->pending_mode_change = true;
2660
2661 sensor->ae_target = 52;
2662
2663 /* optional indication of physical rotation of sensor */
2664 ret = fwnode_property_read_u32(dev_fwnode(&client->dev), "rotation",
2665 &rotation);
2666 if (!ret) {
2667 switch (rotation) {
2668 case 180:
2669 sensor->upside_down = true;
2670 /* fall through */
2671 case 0:
2672 break;
2673 default:
2674 dev_warn(dev, "%u degrees rotation is not supported, ignoring...\n",
2675 rotation);
2676 }
2677 }
2678
2679 endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev),
2680 NULL);
2681 if (!endpoint) {
2682 dev_err(dev, "endpoint node not found\n");
2683 return -EINVAL;
2684 }
2685
2686 ret = v4l2_fwnode_endpoint_parse(endpoint, &sensor->ep);
2687 fwnode_handle_put(endpoint);
2688 if (ret) {
2689 dev_err(dev, "Could not parse endpoint\n");
2690 return ret;
2691 }
2692
2693 /* get system clock (xclk) */
2694 sensor->xclk = devm_clk_get(dev, "xclk");
2695 if (IS_ERR(sensor->xclk)) {
2696 dev_err(dev, "failed to get xclk\n");
2697 return PTR_ERR(sensor->xclk);
2698 }
2699
2700 sensor->xclk_freq = clk_get_rate(sensor->xclk);
2701 if (sensor->xclk_freq < OV5640_XCLK_MIN ||
2702 sensor->xclk_freq > OV5640_XCLK_MAX) {
2703 dev_err(dev, "xclk frequency out of range: %d Hz\n",
2704 sensor->xclk_freq);
2705 return -EINVAL;
2706 }
2707
2708 /* request optional power down pin */
2709 sensor->pwdn_gpio = devm_gpiod_get_optional(dev, "powerdown",
2710 GPIOD_OUT_HIGH);
2711 /* request optional reset pin */
2712 sensor->reset_gpio = devm_gpiod_get_optional(dev, "reset",
2713 GPIOD_OUT_HIGH);
2714
2715 v4l2_i2c_subdev_init(&sensor->sd, client, &ov5640_subdev_ops);
2716
2717 sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
2718 sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
2719 sensor->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
2720 ret = media_entity_pads_init(&sensor->sd.entity, 1, &sensor->pad);
2721 if (ret)
2722 return ret;
2723
2724 ret = ov5640_get_regulators(sensor);
2725 if (ret)
2726 return ret;
2727
2728 mutex_init(&sensor->lock);
2729
2730 ret = ov5640_check_chip_id(sensor);
2731 if (ret)
2732 goto entity_cleanup;
2733
2734 ret = ov5640_init_controls(sensor);
2735 if (ret)
2736 goto entity_cleanup;
2737
2738 ret = v4l2_async_register_subdev(&sensor->sd);
2739 if (ret)
2740 goto free_ctrls;
2741
2742 return 0;
2743
2744 free_ctrls:
2745 v4l2_ctrl_handler_free(&sensor->ctrls.handler);
2746 entity_cleanup:
2747 mutex_destroy(&sensor->lock);
2748 media_entity_cleanup(&sensor->sd.entity);
2749 return ret;
2750 }
2751
ov5640_remove(struct i2c_client * client)2752 static int ov5640_remove(struct i2c_client *client)
2753 {
2754 struct v4l2_subdev *sd = i2c_get_clientdata(client);
2755 struct ov5640_dev *sensor = to_ov5640_dev(sd);
2756
2757 v4l2_async_unregister_subdev(&sensor->sd);
2758 mutex_destroy(&sensor->lock);
2759 media_entity_cleanup(&sensor->sd.entity);
2760 v4l2_ctrl_handler_free(&sensor->ctrls.handler);
2761
2762 return 0;
2763 }
2764
2765 static const struct i2c_device_id ov5640_id[] = {
2766 {"ov5640", 0},
2767 {},
2768 };
2769 MODULE_DEVICE_TABLE(i2c, ov5640_id);
2770
2771 static const struct of_device_id ov5640_dt_ids[] = {
2772 { .compatible = "ovti,ov5640" },
2773 { /* sentinel */ }
2774 };
2775 MODULE_DEVICE_TABLE(of, ov5640_dt_ids);
2776
2777 static struct i2c_driver ov5640_i2c_driver = {
2778 .driver = {
2779 .name = "ov5640",
2780 .of_match_table = ov5640_dt_ids,
2781 },
2782 .id_table = ov5640_id,
2783 .probe = ov5640_probe,
2784 .remove = ov5640_remove,
2785 };
2786
2787 module_i2c_driver(ov5640_i2c_driver);
2788
2789 MODULE_DESCRIPTION("OV5640 MIPI Camera Subdev Driver");
2790 MODULE_LICENSE("GPL");
2791
