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7397bfbe GL |
1 | /* |
2 | * Driver for MT9V022 CMOS Image Sensor from Micron | |
3 | * | |
4 | * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/videodev2.h> | |
12 | #include <linux/slab.h> | |
13 | #include <linux/i2c.h> | |
14 | #include <linux/delay.h> | |
15 | #include <linux/log2.h> | |
7a707b89 | 16 | #include <linux/module.h> |
7397bfbe | 17 | |
979ea1dd | 18 | #include <media/v4l2-subdev.h> |
7397bfbe GL |
19 | #include <media/v4l2-chip-ident.h> |
20 | #include <media/soc_camera.h> | |
21 | ||
5d28d525 GL |
22 | /* |
23 | * mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c | |
979ea1dd | 24 | * The platform has to define ctruct i2c_board_info objects and link to them |
5d28d525 GL |
25 | * from struct soc_camera_link |
26 | */ | |
7397bfbe GL |
27 | |
28 | static char *sensor_type; | |
29 | module_param(sensor_type, charp, S_IRUGO); | |
61a2d07d | 30 | MODULE_PARM_DESC(sensor_type, "Sensor type: \"colour\" or \"monochrome\""); |
7397bfbe GL |
31 | |
32 | /* mt9v022 selected register addresses */ | |
33 | #define MT9V022_CHIP_VERSION 0x00 | |
34 | #define MT9V022_COLUMN_START 0x01 | |
35 | #define MT9V022_ROW_START 0x02 | |
36 | #define MT9V022_WINDOW_HEIGHT 0x03 | |
37 | #define MT9V022_WINDOW_WIDTH 0x04 | |
38 | #define MT9V022_HORIZONTAL_BLANKING 0x05 | |
39 | #define MT9V022_VERTICAL_BLANKING 0x06 | |
40 | #define MT9V022_CHIP_CONTROL 0x07 | |
41 | #define MT9V022_SHUTTER_WIDTH1 0x08 | |
42 | #define MT9V022_SHUTTER_WIDTH2 0x09 | |
43 | #define MT9V022_SHUTTER_WIDTH_CTRL 0x0a | |
44 | #define MT9V022_TOTAL_SHUTTER_WIDTH 0x0b | |
45 | #define MT9V022_RESET 0x0c | |
46 | #define MT9V022_READ_MODE 0x0d | |
47 | #define MT9V022_MONITOR_MODE 0x0e | |
48 | #define MT9V022_PIXEL_OPERATION_MODE 0x0f | |
49 | #define MT9V022_LED_OUT_CONTROL 0x1b | |
50 | #define MT9V022_ADC_MODE_CONTROL 0x1c | |
96c75399 | 51 | #define MT9V022_ANALOG_GAIN 0x35 |
7397bfbe GL |
52 | #define MT9V022_BLACK_LEVEL_CALIB_CTRL 0x47 |
53 | #define MT9V022_PIXCLK_FV_LV 0x74 | |
54 | #define MT9V022_DIGITAL_TEST_PATTERN 0x7f | |
55 | #define MT9V022_AEC_AGC_ENABLE 0xAF | |
56 | #define MT9V022_MAX_TOTAL_SHUTTER_WIDTH 0xBD | |
57 | ||
58 | /* Progressive scan, master, defaults */ | |
59 | #define MT9V022_CHIP_CONTROL_DEFAULT 0x188 | |
60 | ||
6a6c8786 GL |
61 | #define MT9V022_MAX_WIDTH 752 |
62 | #define MT9V022_MAX_HEIGHT 480 | |
63 | #define MT9V022_MIN_WIDTH 48 | |
64 | #define MT9V022_MIN_HEIGHT 32 | |
65 | #define MT9V022_COLUMN_SKIP 1 | |
66 | #define MT9V022_ROW_SKIP 4 | |
67 | ||
760697be GL |
68 | /* MT9V022 has only one fixed colorspace per pixelcode */ |
69 | struct mt9v022_datafmt { | |
70 | enum v4l2_mbus_pixelcode code; | |
71 | enum v4l2_colorspace colorspace; | |
72 | }; | |
73 | ||
74 | /* Find a data format by a pixel code in an array */ | |
75 | static const struct mt9v022_datafmt *mt9v022_find_datafmt( | |
76 | enum v4l2_mbus_pixelcode code, const struct mt9v022_datafmt *fmt, | |
77 | int n) | |
78 | { | |
79 | int i; | |
80 | for (i = 0; i < n; i++) | |
81 | if (fmt[i].code == code) | |
82 | return fmt + i; | |
83 | ||
84 | return NULL; | |
85 | } | |
86 | ||
87 | static const struct mt9v022_datafmt mt9v022_colour_fmts[] = { | |
5d28d525 GL |
88 | /* |
89 | * Order important: first natively supported, | |
90 | * second supported with a GPIO extender | |
91 | */ | |
760697be GL |
92 | {V4L2_MBUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, |
93 | {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, | |
bb55de3b GL |
94 | }; |
95 | ||
760697be | 96 | static const struct mt9v022_datafmt mt9v022_monochrome_fmts[] = { |
bb55de3b | 97 | /* Order important - see above */ |
760697be | 98 | {V4L2_MBUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG}, |
07670433 | 99 | {V4L2_MBUS_FMT_Y8_1X8, V4L2_COLORSPACE_JPEG}, |
7397bfbe GL |
100 | }; |
101 | ||
102 | struct mt9v022 { | |
979ea1dd | 103 | struct v4l2_subdev subdev; |
6a6c8786 | 104 | struct v4l2_rect rect; /* Sensor window */ |
760697be GL |
105 | const struct mt9v022_datafmt *fmt; |
106 | const struct mt9v022_datafmt *fmts; | |
107 | int num_fmts; | |
7fb0fd05 | 108 | int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */ |
7397bfbe | 109 | u16 chip_control; |
32536108 | 110 | unsigned short y_skip_top; /* Lines to skip at the top */ |
7397bfbe GL |
111 | }; |
112 | ||
979ea1dd GL |
113 | static struct mt9v022 *to_mt9v022(const struct i2c_client *client) |
114 | { | |
115 | return container_of(i2c_get_clientdata(client), struct mt9v022, subdev); | |
116 | } | |
117 | ||
9538e1c2 | 118 | static int reg_read(struct i2c_client *client, const u8 reg) |
7397bfbe | 119 | { |
7397bfbe GL |
120 | s32 data = i2c_smbus_read_word_data(client, reg); |
121 | return data < 0 ? data : swab16(data); | |
122 | } | |
123 | ||
9538e1c2 | 124 | static int reg_write(struct i2c_client *client, const u8 reg, |
7397bfbe GL |
125 | const u16 data) |
126 | { | |
9538e1c2 | 127 | return i2c_smbus_write_word_data(client, reg, swab16(data)); |
7397bfbe GL |
128 | } |
129 | ||
9538e1c2 | 130 | static int reg_set(struct i2c_client *client, const u8 reg, |
7397bfbe GL |
131 | const u16 data) |
132 | { | |
133 | int ret; | |
134 | ||
9538e1c2 | 135 | ret = reg_read(client, reg); |
7397bfbe GL |
136 | if (ret < 0) |
137 | return ret; | |
9538e1c2 | 138 | return reg_write(client, reg, ret | data); |
7397bfbe GL |
139 | } |
140 | ||
9538e1c2 | 141 | static int reg_clear(struct i2c_client *client, const u8 reg, |
7397bfbe GL |
142 | const u16 data) |
143 | { | |
144 | int ret; | |
145 | ||
9538e1c2 | 146 | ret = reg_read(client, reg); |
7397bfbe GL |
147 | if (ret < 0) |
148 | return ret; | |
9538e1c2 | 149 | return reg_write(client, reg, ret & ~data); |
7397bfbe GL |
150 | } |
151 | ||
a4c56fd8 | 152 | static int mt9v022_init(struct i2c_client *client) |
7397bfbe | 153 | { |
979ea1dd | 154 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
7397bfbe GL |
155 | int ret; |
156 | ||
5d28d525 GL |
157 | /* |
158 | * Almost the default mode: master, parallel, simultaneous, and an | |
7397bfbe | 159 | * undocumented bit 0x200, which is present in table 7, but not in 8, |
5d28d525 GL |
160 | * plus snapshot mode to disable scan for now |
161 | */ | |
7397bfbe | 162 | mt9v022->chip_control |= 0x10; |
9538e1c2 | 163 | ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); |
11211641 | 164 | if (!ret) |
9538e1c2 | 165 | ret = reg_write(client, MT9V022_READ_MODE, 0x300); |
7397bfbe GL |
166 | |
167 | /* All defaults */ | |
11211641 | 168 | if (!ret) |
7397bfbe | 169 | /* AEC, AGC on */ |
9538e1c2 | 170 | ret = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x3); |
96c75399 GL |
171 | if (!ret) |
172 | ret = reg_write(client, MT9V022_ANALOG_GAIN, 16); | |
173 | if (!ret) | |
174 | ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, 480); | |
11211641 | 175 | if (!ret) |
9538e1c2 | 176 | ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, 480); |
11211641 | 177 | if (!ret) |
7397bfbe | 178 | /* default - auto */ |
9538e1c2 | 179 | ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1); |
11211641 | 180 | if (!ret) |
9538e1c2 | 181 | ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0); |
7397bfbe | 182 | |
11211641 | 183 | return ret; |
7397bfbe GL |
184 | } |
185 | ||
979ea1dd | 186 | static int mt9v022_s_stream(struct v4l2_subdev *sd, int enable) |
7397bfbe | 187 | { |
c4ce6d14 | 188 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
979ea1dd | 189 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
81034663 | 190 | |
979ea1dd GL |
191 | if (enable) |
192 | /* Switch to master "normal" mode */ | |
193 | mt9v022->chip_control &= ~0x10; | |
194 | else | |
195 | /* Switch to snapshot mode */ | |
196 | mt9v022->chip_control |= 0x10; | |
7397bfbe | 197 | |
979ea1dd | 198 | if (reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control) < 0) |
7397bfbe GL |
199 | return -EIO; |
200 | return 0; | |
201 | } | |
202 | ||
ad5f2e85 GL |
203 | static int mt9v022_set_bus_param(struct soc_camera_device *icd, |
204 | unsigned long flags) | |
7397bfbe | 205 | { |
40e2e092 | 206 | struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd)); |
979ea1dd | 207 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
40e2e092 | 208 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
ad5f2e85 | 209 | unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK; |
7397bfbe | 210 | int ret; |
ad5f2e85 | 211 | u16 pixclk = 0; |
7397bfbe GL |
212 | |
213 | /* Only one width bit may be set */ | |
214 | if (!is_power_of_2(width_flag)) | |
215 | return -EINVAL; | |
216 | ||
e958e27a SH |
217 | if (icl->set_bus_param) { |
218 | ret = icl->set_bus_param(icl, width_flag); | |
219 | if (ret) | |
ad5f2e85 | 220 | return ret; |
e958e27a SH |
221 | } else { |
222 | /* | |
223 | * Without board specific bus width settings we only support the | |
224 | * sensors native bus width | |
225 | */ | |
226 | if (width_flag != SOCAM_DATAWIDTH_10) | |
227 | return -EINVAL; | |
ad5f2e85 GL |
228 | } |
229 | ||
bd73b36f GL |
230 | flags = soc_camera_apply_sensor_flags(icl, flags); |
231 | ||
a1de7a00 | 232 | if (flags & SOCAM_PCLK_SAMPLE_FALLING) |
ad5f2e85 GL |
233 | pixclk |= 0x10; |
234 | ||
235 | if (!(flags & SOCAM_HSYNC_ACTIVE_HIGH)) | |
236 | pixclk |= 0x1; | |
237 | ||
238 | if (!(flags & SOCAM_VSYNC_ACTIVE_HIGH)) | |
239 | pixclk |= 0x2; | |
240 | ||
9538e1c2 | 241 | ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk); |
ad5f2e85 GL |
242 | if (ret < 0) |
243 | return ret; | |
244 | ||
245 | if (!(flags & SOCAM_MASTER)) | |
246 | mt9v022->chip_control &= ~0x8; | |
247 | ||
9538e1c2 | 248 | ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); |
ad5f2e85 GL |
249 | if (ret < 0) |
250 | return ret; | |
251 | ||
85f8be68 | 252 | dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n", |
ad5f2e85 GL |
253 | pixclk, mt9v022->chip_control); |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
258 | static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd) | |
259 | { | |
40e2e092 | 260 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
4a9ce755 GL |
261 | unsigned int flags = SOCAM_MASTER | SOCAM_SLAVE | |
262 | SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING | | |
263 | SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW | | |
264 | SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW | | |
265 | SOCAM_DATA_ACTIVE_HIGH; | |
ad5f2e85 | 266 | |
e958e27a | 267 | if (icl->query_bus_param) |
4a9ce755 | 268 | flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK; |
e958e27a | 269 | else |
4a9ce755 | 270 | flags |= SOCAM_DATAWIDTH_10; |
ad5f2e85 | 271 | |
4a9ce755 | 272 | return soc_camera_apply_sensor_flags(icl, flags); |
ad5f2e85 GL |
273 | } |
274 | ||
08590b96 | 275 | static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) |
ad5f2e85 | 276 | { |
c4ce6d14 | 277 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
6a6c8786 GL |
278 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
279 | struct v4l2_rect rect = a->c; | |
ad5f2e85 GL |
280 | int ret; |
281 | ||
6a6c8786 | 282 | /* Bayer format - even size lengths */ |
760697be | 283 | if (mt9v022->fmts == mt9v022_colour_fmts) { |
6a6c8786 GL |
284 | rect.width = ALIGN(rect.width, 2); |
285 | rect.height = ALIGN(rect.height, 2); | |
286 | /* Let the user play with the starting pixel */ | |
287 | } | |
288 | ||
289 | soc_camera_limit_side(&rect.left, &rect.width, | |
290 | MT9V022_COLUMN_SKIP, MT9V022_MIN_WIDTH, MT9V022_MAX_WIDTH); | |
291 | ||
292 | soc_camera_limit_side(&rect.top, &rect.height, | |
293 | MT9V022_ROW_SKIP, MT9V022_MIN_HEIGHT, MT9V022_MAX_HEIGHT); | |
294 | ||
7397bfbe | 295 | /* Like in example app. Contradicts the datasheet though */ |
9538e1c2 | 296 | ret = reg_read(client, MT9V022_AEC_AGC_ENABLE); |
7397bfbe GL |
297 | if (ret >= 0) { |
298 | if (ret & 1) /* Autoexposure */ | |
9538e1c2 | 299 | ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, |
32536108 | 300 | rect.height + mt9v022->y_skip_top + 43); |
7397bfbe | 301 | else |
9538e1c2 | 302 | ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, |
32536108 | 303 | rect.height + mt9v022->y_skip_top + 43); |
7397bfbe GL |
304 | } |
305 | /* Setup frame format: defaults apart from width and height */ | |
11211641 | 306 | if (!ret) |
6a6c8786 | 307 | ret = reg_write(client, MT9V022_COLUMN_START, rect.left); |
11211641 | 308 | if (!ret) |
6a6c8786 | 309 | ret = reg_write(client, MT9V022_ROW_START, rect.top); |
11211641 | 310 | if (!ret) |
5d28d525 GL |
311 | /* |
312 | * Default 94, Phytec driver says: | |
313 | * "width + horizontal blank >= 660" | |
314 | */ | |
9538e1c2 | 315 | ret = reg_write(client, MT9V022_HORIZONTAL_BLANKING, |
6a6c8786 GL |
316 | rect.width > 660 - 43 ? 43 : |
317 | 660 - rect.width); | |
11211641 | 318 | if (!ret) |
9538e1c2 | 319 | ret = reg_write(client, MT9V022_VERTICAL_BLANKING, 45); |
11211641 | 320 | if (!ret) |
6a6c8786 | 321 | ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width); |
11211641 | 322 | if (!ret) |
9538e1c2 | 323 | ret = reg_write(client, MT9V022_WINDOW_HEIGHT, |
32536108 | 324 | rect.height + mt9v022->y_skip_top); |
7397bfbe GL |
325 | |
326 | if (ret < 0) | |
327 | return ret; | |
328 | ||
e26b3144 | 329 | dev_dbg(&client->dev, "Frame %dx%d pixel\n", rect.width, rect.height); |
6a6c8786 GL |
330 | |
331 | mt9v022->rect = rect; | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | static int mt9v022_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) | |
337 | { | |
c4ce6d14 | 338 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
6a6c8786 GL |
339 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
340 | ||
341 | a->c = mt9v022->rect; | |
342 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static int mt9v022_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) | |
348 | { | |
349 | a->bounds.left = MT9V022_COLUMN_SKIP; | |
350 | a->bounds.top = MT9V022_ROW_SKIP; | |
351 | a->bounds.width = MT9V022_MAX_WIDTH; | |
352 | a->bounds.height = MT9V022_MAX_HEIGHT; | |
353 | a->defrect = a->bounds; | |
354 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
355 | a->pixelaspect.numerator = 1; | |
356 | a->pixelaspect.denominator = 1; | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
760697be GL |
361 | static int mt9v022_g_fmt(struct v4l2_subdev *sd, |
362 | struct v4l2_mbus_framefmt *mf) | |
6a6c8786 | 363 | { |
c4ce6d14 | 364 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
6a6c8786 | 365 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
6a6c8786 | 366 | |
760697be GL |
367 | mf->width = mt9v022->rect.width; |
368 | mf->height = mt9v022->rect.height; | |
369 | mf->code = mt9v022->fmt->code; | |
370 | mf->colorspace = mt9v022->fmt->colorspace; | |
371 | mf->field = V4L2_FIELD_NONE; | |
7397bfbe | 372 | |
7397bfbe GL |
373 | return 0; |
374 | } | |
375 | ||
760697be GL |
376 | static int mt9v022_s_fmt(struct v4l2_subdev *sd, |
377 | struct v4l2_mbus_framefmt *mf) | |
09e231b3 | 378 | { |
c4ce6d14 | 379 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
979ea1dd | 380 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
08590b96 GL |
381 | struct v4l2_crop a = { |
382 | .c = { | |
6a6c8786 GL |
383 | .left = mt9v022->rect.left, |
384 | .top = mt9v022->rect.top, | |
760697be GL |
385 | .width = mf->width, |
386 | .height = mf->height, | |
08590b96 | 387 | }, |
09e231b3 | 388 | }; |
6a6c8786 | 389 | int ret; |
09e231b3 | 390 | |
5d28d525 GL |
391 | /* |
392 | * The caller provides a supported format, as verified per call to | |
393 | * icd->try_fmt(), datawidth is from our supported format list | |
394 | */ | |
760697be | 395 | switch (mf->code) { |
07670433 | 396 | case V4L2_MBUS_FMT_Y8_1X8: |
760697be | 397 | case V4L2_MBUS_FMT_Y10_1X10: |
09e231b3 GL |
398 | if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATM) |
399 | return -EINVAL; | |
400 | break; | |
760697be GL |
401 | case V4L2_MBUS_FMT_SBGGR8_1X8: |
402 | case V4L2_MBUS_FMT_SBGGR10_1X10: | |
09e231b3 GL |
403 | if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATC) |
404 | return -EINVAL; | |
405 | break; | |
09e231b3 GL |
406 | default: |
407 | return -EINVAL; | |
408 | } | |
409 | ||
410 | /* No support for scaling on this camera, just crop. */ | |
6a6c8786 GL |
411 | ret = mt9v022_s_crop(sd, &a); |
412 | if (!ret) { | |
760697be GL |
413 | mf->width = mt9v022->rect.width; |
414 | mf->height = mt9v022->rect.height; | |
415 | mt9v022->fmt = mt9v022_find_datafmt(mf->code, | |
416 | mt9v022->fmts, mt9v022->num_fmts); | |
417 | mf->colorspace = mt9v022->fmt->colorspace; | |
6a6c8786 GL |
418 | } |
419 | ||
420 | return ret; | |
09e231b3 GL |
421 | } |
422 | ||
760697be GL |
423 | static int mt9v022_try_fmt(struct v4l2_subdev *sd, |
424 | struct v4l2_mbus_framefmt *mf) | |
7397bfbe | 425 | { |
c4ce6d14 | 426 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
32536108 | 427 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
760697be GL |
428 | const struct mt9v022_datafmt *fmt; |
429 | int align = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 || | |
430 | mf->code == V4L2_MBUS_FMT_SBGGR10_1X10; | |
64f5905e | 431 | |
760697be | 432 | v4l_bound_align_image(&mf->width, MT9V022_MIN_WIDTH, |
6a6c8786 | 433 | MT9V022_MAX_WIDTH, align, |
760697be | 434 | &mf->height, MT9V022_MIN_HEIGHT + mt9v022->y_skip_top, |
32536108 | 435 | MT9V022_MAX_HEIGHT + mt9v022->y_skip_top, align, 0); |
7397bfbe | 436 | |
760697be GL |
437 | fmt = mt9v022_find_datafmt(mf->code, mt9v022->fmts, |
438 | mt9v022->num_fmts); | |
439 | if (!fmt) { | |
440 | fmt = mt9v022->fmt; | |
441 | mf->code = fmt->code; | |
442 | } | |
443 | ||
444 | mf->colorspace = fmt->colorspace; | |
445 | ||
7397bfbe GL |
446 | return 0; |
447 | } | |
448 | ||
979ea1dd GL |
449 | static int mt9v022_g_chip_ident(struct v4l2_subdev *sd, |
450 | struct v4l2_dbg_chip_ident *id) | |
7397bfbe | 451 | { |
c4ce6d14 | 452 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
979ea1dd | 453 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
7397bfbe | 454 | |
aecde8b5 | 455 | if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR) |
7397bfbe GL |
456 | return -EINVAL; |
457 | ||
40e2e092 | 458 | if (id->match.addr != client->addr) |
7397bfbe GL |
459 | return -ENODEV; |
460 | ||
461 | id->ident = mt9v022->model; | |
462 | id->revision = 0; | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
979ea1dd GL |
468 | static int mt9v022_g_register(struct v4l2_subdev *sd, |
469 | struct v4l2_dbg_register *reg) | |
7397bfbe | 470 | { |
c4ce6d14 | 471 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
7397bfbe | 472 | |
aecde8b5 | 473 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) |
7397bfbe GL |
474 | return -EINVAL; |
475 | ||
9538e1c2 | 476 | if (reg->match.addr != client->addr) |
7397bfbe GL |
477 | return -ENODEV; |
478 | ||
aecde8b5 | 479 | reg->size = 2; |
9538e1c2 | 480 | reg->val = reg_read(client, reg->reg); |
7397bfbe GL |
481 | |
482 | if (reg->val > 0xffff) | |
483 | return -EIO; | |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
979ea1dd GL |
488 | static int mt9v022_s_register(struct v4l2_subdev *sd, |
489 | struct v4l2_dbg_register *reg) | |
7397bfbe | 490 | { |
c4ce6d14 | 491 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
7397bfbe | 492 | |
aecde8b5 | 493 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) |
7397bfbe GL |
494 | return -EINVAL; |
495 | ||
9538e1c2 | 496 | if (reg->match.addr != client->addr) |
7397bfbe GL |
497 | return -ENODEV; |
498 | ||
9538e1c2 | 499 | if (reg_write(client, reg->reg, reg->val) < 0) |
7397bfbe GL |
500 | return -EIO; |
501 | ||
502 | return 0; | |
503 | } | |
504 | #endif | |
505 | ||
4407a463 | 506 | static const struct v4l2_queryctrl mt9v022_controls[] = { |
7397bfbe GL |
507 | { |
508 | .id = V4L2_CID_VFLIP, | |
509 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
510 | .name = "Flip Vertically", | |
511 | .minimum = 0, | |
512 | .maximum = 1, | |
513 | .step = 1, | |
514 | .default_value = 0, | |
515 | }, { | |
516 | .id = V4L2_CID_HFLIP, | |
517 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
518 | .name = "Flip Horizontally", | |
519 | .minimum = 0, | |
520 | .maximum = 1, | |
521 | .step = 1, | |
522 | .default_value = 0, | |
523 | }, { | |
524 | .id = V4L2_CID_GAIN, | |
525 | .type = V4L2_CTRL_TYPE_INTEGER, | |
526 | .name = "Analog Gain", | |
527 | .minimum = 64, | |
528 | .maximum = 127, | |
529 | .step = 1, | |
530 | .default_value = 64, | |
531 | .flags = V4L2_CTRL_FLAG_SLIDER, | |
532 | }, { | |
533 | .id = V4L2_CID_EXPOSURE, | |
534 | .type = V4L2_CTRL_TYPE_INTEGER, | |
535 | .name = "Exposure", | |
536 | .minimum = 1, | |
537 | .maximum = 255, | |
538 | .step = 1, | |
539 | .default_value = 255, | |
540 | .flags = V4L2_CTRL_FLAG_SLIDER, | |
541 | }, { | |
542 | .id = V4L2_CID_AUTOGAIN, | |
543 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
544 | .name = "Automatic Gain", | |
545 | .minimum = 0, | |
546 | .maximum = 1, | |
547 | .step = 1, | |
548 | .default_value = 1, | |
549 | }, { | |
550 | .id = V4L2_CID_EXPOSURE_AUTO, | |
551 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
552 | .name = "Automatic Exposure", | |
553 | .minimum = 0, | |
554 | .maximum = 1, | |
555 | .step = 1, | |
556 | .default_value = 1, | |
557 | } | |
558 | }; | |
559 | ||
7397bfbe | 560 | static struct soc_camera_ops mt9v022_ops = { |
ad5f2e85 GL |
561 | .set_bus_param = mt9v022_set_bus_param, |
562 | .query_bus_param = mt9v022_query_bus_param, | |
7397bfbe GL |
563 | .controls = mt9v022_controls, |
564 | .num_controls = ARRAY_SIZE(mt9v022_controls), | |
7397bfbe GL |
565 | }; |
566 | ||
979ea1dd | 567 | static int mt9v022_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
7397bfbe | 568 | { |
c4ce6d14 | 569 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
96c75399 GL |
570 | const struct v4l2_queryctrl *qctrl; |
571 | unsigned long range; | |
7397bfbe GL |
572 | int data; |
573 | ||
96c75399 GL |
574 | qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id); |
575 | ||
7397bfbe GL |
576 | switch (ctrl->id) { |
577 | case V4L2_CID_VFLIP: | |
9538e1c2 | 578 | data = reg_read(client, MT9V022_READ_MODE); |
7397bfbe GL |
579 | if (data < 0) |
580 | return -EIO; | |
581 | ctrl->value = !!(data & 0x10); | |
582 | break; | |
583 | case V4L2_CID_HFLIP: | |
9538e1c2 | 584 | data = reg_read(client, MT9V022_READ_MODE); |
7397bfbe GL |
585 | if (data < 0) |
586 | return -EIO; | |
587 | ctrl->value = !!(data & 0x20); | |
588 | break; | |
589 | case V4L2_CID_EXPOSURE_AUTO: | |
9538e1c2 | 590 | data = reg_read(client, MT9V022_AEC_AGC_ENABLE); |
7397bfbe GL |
591 | if (data < 0) |
592 | return -EIO; | |
593 | ctrl->value = !!(data & 0x1); | |
594 | break; | |
595 | case V4L2_CID_AUTOGAIN: | |
9538e1c2 | 596 | data = reg_read(client, MT9V022_AEC_AGC_ENABLE); |
7397bfbe GL |
597 | if (data < 0) |
598 | return -EIO; | |
599 | ctrl->value = !!(data & 0x2); | |
96c75399 GL |
600 | break; |
601 | case V4L2_CID_GAIN: | |
602 | data = reg_read(client, MT9V022_ANALOG_GAIN); | |
603 | if (data < 0) | |
604 | return -EIO; | |
605 | ||
606 | range = qctrl->maximum - qctrl->minimum; | |
607 | ctrl->value = ((data - 16) * range + 24) / 48 + qctrl->minimum; | |
608 | ||
609 | break; | |
610 | case V4L2_CID_EXPOSURE: | |
611 | data = reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH); | |
612 | if (data < 0) | |
613 | return -EIO; | |
614 | ||
615 | range = qctrl->maximum - qctrl->minimum; | |
616 | ctrl->value = ((data - 1) * range + 239) / 479 + qctrl->minimum; | |
617 | ||
7397bfbe GL |
618 | break; |
619 | } | |
620 | return 0; | |
621 | } | |
622 | ||
979ea1dd | 623 | static int mt9v022_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
7397bfbe GL |
624 | { |
625 | int data; | |
c4ce6d14 | 626 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
7397bfbe GL |
627 | const struct v4l2_queryctrl *qctrl; |
628 | ||
629 | qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id); | |
7397bfbe GL |
630 | if (!qctrl) |
631 | return -EINVAL; | |
632 | ||
633 | switch (ctrl->id) { | |
634 | case V4L2_CID_VFLIP: | |
635 | if (ctrl->value) | |
9538e1c2 | 636 | data = reg_set(client, MT9V022_READ_MODE, 0x10); |
7397bfbe | 637 | else |
9538e1c2 | 638 | data = reg_clear(client, MT9V022_READ_MODE, 0x10); |
7397bfbe GL |
639 | if (data < 0) |
640 | return -EIO; | |
641 | break; | |
642 | case V4L2_CID_HFLIP: | |
643 | if (ctrl->value) | |
9538e1c2 | 644 | data = reg_set(client, MT9V022_READ_MODE, 0x20); |
7397bfbe | 645 | else |
9538e1c2 | 646 | data = reg_clear(client, MT9V022_READ_MODE, 0x20); |
7397bfbe GL |
647 | if (data < 0) |
648 | return -EIO; | |
649 | break; | |
650 | case V4L2_CID_GAIN: | |
651 | /* mt9v022 has minimum == default */ | |
652 | if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum) | |
653 | return -EINVAL; | |
654 | else { | |
655 | unsigned long range = qctrl->maximum - qctrl->minimum; | |
96c75399 | 656 | /* Valid values 16 to 64, 32 to 64 must be even. */ |
7397bfbe | 657 | unsigned long gain = ((ctrl->value - qctrl->minimum) * |
96c75399 | 658 | 48 + range / 2) / range + 16; |
7397bfbe GL |
659 | if (gain >= 32) |
660 | gain &= ~1; | |
5d28d525 GL |
661 | /* |
662 | * The user wants to set gain manually, hope, she | |
663 | * knows, what she's doing... Switch AGC off. | |
664 | */ | |
7397bfbe | 665 | |
9538e1c2 | 666 | if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0) |
7397bfbe GL |
667 | return -EIO; |
668 | ||
96c75399 GL |
669 | dev_dbg(&client->dev, "Setting gain from %d to %lu\n", |
670 | reg_read(client, MT9V022_ANALOG_GAIN), gain); | |
9538e1c2 | 671 | if (reg_write(client, MT9V022_ANALOG_GAIN, gain) < 0) |
7397bfbe | 672 | return -EIO; |
7397bfbe GL |
673 | } |
674 | break; | |
675 | case V4L2_CID_EXPOSURE: | |
676 | /* mt9v022 has maximum == default */ | |
677 | if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum) | |
678 | return -EINVAL; | |
679 | else { | |
680 | unsigned long range = qctrl->maximum - qctrl->minimum; | |
681 | unsigned long shutter = ((ctrl->value - qctrl->minimum) * | |
682 | 479 + range / 2) / range + 1; | |
5d28d525 GL |
683 | /* |
684 | * The user wants to set shutter width manually, hope, | |
685 | * she knows, what she's doing... Switch AEC off. | |
686 | */ | |
7397bfbe | 687 | |
9538e1c2 | 688 | if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1) < 0) |
7397bfbe GL |
689 | return -EIO; |
690 | ||
85f8be68 | 691 | dev_dbg(&client->dev, "Shutter width from %d to %lu\n", |
9538e1c2 | 692 | reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH), |
7397bfbe | 693 | shutter); |
9538e1c2 | 694 | if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, |
7397bfbe GL |
695 | shutter) < 0) |
696 | return -EIO; | |
7397bfbe GL |
697 | } |
698 | break; | |
699 | case V4L2_CID_AUTOGAIN: | |
700 | if (ctrl->value) | |
9538e1c2 | 701 | data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2); |
7397bfbe | 702 | else |
9538e1c2 | 703 | data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2); |
7397bfbe GL |
704 | if (data < 0) |
705 | return -EIO; | |
706 | break; | |
707 | case V4L2_CID_EXPOSURE_AUTO: | |
708 | if (ctrl->value) | |
9538e1c2 | 709 | data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1); |
7397bfbe | 710 | else |
9538e1c2 | 711 | data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1); |
7397bfbe GL |
712 | if (data < 0) |
713 | return -EIO; | |
714 | break; | |
715 | } | |
716 | return 0; | |
717 | } | |
718 | ||
5d28d525 GL |
719 | /* |
720 | * Interface active, can use i2c. If it fails, it can indeed mean, that | |
721 | * this wasn't our capture interface, so, we wait for the right one | |
722 | */ | |
40e2e092 GL |
723 | static int mt9v022_video_probe(struct soc_camera_device *icd, |
724 | struct i2c_client *client) | |
7397bfbe | 725 | { |
979ea1dd | 726 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
40e2e092 | 727 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
7397bfbe GL |
728 | s32 data; |
729 | int ret; | |
e958e27a | 730 | unsigned long flags; |
7397bfbe | 731 | |
7dfff953 GL |
732 | /* We must have a parent by now. And it cannot be a wrong one. */ |
733 | BUG_ON(!icd->parent || | |
734 | to_soc_camera_host(icd->parent)->nr != icd->iface); | |
7397bfbe GL |
735 | |
736 | /* Read out the chip version register */ | |
9538e1c2 | 737 | data = reg_read(client, MT9V022_CHIP_VERSION); |
7397bfbe GL |
738 | |
739 | /* must be 0x1311 or 0x1313 */ | |
740 | if (data != 0x1311 && data != 0x1313) { | |
741 | ret = -ENODEV; | |
85f8be68 | 742 | dev_info(&client->dev, "No MT9V022 found, ID register 0x%x\n", |
7397bfbe GL |
743 | data); |
744 | goto ei2c; | |
745 | } | |
746 | ||
747 | /* Soft reset */ | |
9538e1c2 | 748 | ret = reg_write(client, MT9V022_RESET, 1); |
7397bfbe GL |
749 | if (ret < 0) |
750 | goto ei2c; | |
751 | /* 15 clock cycles */ | |
752 | udelay(200); | |
9538e1c2 | 753 | if (reg_read(client, MT9V022_RESET)) { |
85f8be68 | 754 | dev_err(&client->dev, "Resetting MT9V022 failed!\n"); |
40e2e092 GL |
755 | if (ret > 0) |
756 | ret = -EIO; | |
7397bfbe GL |
757 | goto ei2c; |
758 | } | |
759 | ||
760 | /* Set monochrome or colour sensor type */ | |
761 | if (sensor_type && (!strcmp("colour", sensor_type) || | |
762 | !strcmp("color", sensor_type))) { | |
9538e1c2 | 763 | ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 4 | 0x11); |
7397bfbe | 764 | mt9v022->model = V4L2_IDENT_MT9V022IX7ATC; |
760697be | 765 | mt9v022->fmts = mt9v022_colour_fmts; |
7397bfbe | 766 | } else { |
9538e1c2 | 767 | ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 0x11); |
7397bfbe | 768 | mt9v022->model = V4L2_IDENT_MT9V022IX7ATM; |
760697be | 769 | mt9v022->fmts = mt9v022_monochrome_fmts; |
7397bfbe GL |
770 | } |
771 | ||
e958e27a | 772 | if (ret < 0) |
40e2e092 | 773 | goto ei2c; |
e958e27a | 774 | |
760697be | 775 | mt9v022->num_fmts = 0; |
e958e27a SH |
776 | |
777 | /* | |
778 | * This is a 10bit sensor, so by default we only allow 10bit. | |
779 | * The platform may support different bus widths due to | |
780 | * different routing of the data lines. | |
781 | */ | |
782 | if (icl->query_bus_param) | |
783 | flags = icl->query_bus_param(icl); | |
784 | else | |
785 | flags = SOCAM_DATAWIDTH_10; | |
786 | ||
787 | if (flags & SOCAM_DATAWIDTH_10) | |
760697be | 788 | mt9v022->num_fmts++; |
e958e27a | 789 | else |
760697be | 790 | mt9v022->fmts++; |
e958e27a SH |
791 | |
792 | if (flags & SOCAM_DATAWIDTH_8) | |
760697be | 793 | mt9v022->num_fmts++; |
e958e27a | 794 | |
760697be | 795 | mt9v022->fmt = &mt9v022->fmts[0]; |
6a6c8786 | 796 | |
85f8be68 | 797 | dev_info(&client->dev, "Detected a MT9V022 chip ID %x, %s sensor\n", |
7397bfbe GL |
798 | data, mt9v022->model == V4L2_IDENT_MT9V022IX7ATM ? |
799 | "monochrome" : "colour"); | |
800 | ||
a4c56fd8 GL |
801 | ret = mt9v022_init(client); |
802 | if (ret < 0) | |
803 | dev_err(&client->dev, "Failed to initialise the camera\n"); | |
804 | ||
7397bfbe GL |
805 | ei2c: |
806 | return ret; | |
807 | } | |
808 | ||
809 | static void mt9v022_video_remove(struct soc_camera_device *icd) | |
810 | { | |
40e2e092 | 811 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
7397bfbe | 812 | |
7dfff953 GL |
813 | dev_dbg(icd->pdev, "Video removed: %p, %p\n", |
814 | icd->parent, icd->vdev); | |
594bb46d GL |
815 | if (icl->free_bus) |
816 | icl->free_bus(icl); | |
7397bfbe GL |
817 | } |
818 | ||
32536108 GL |
819 | static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines) |
820 | { | |
c4ce6d14 | 821 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
32536108 GL |
822 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
823 | ||
824 | *lines = mt9v022->y_skip_top; | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
979ea1dd GL |
829 | static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = { |
830 | .g_ctrl = mt9v022_g_ctrl, | |
831 | .s_ctrl = mt9v022_s_ctrl, | |
832 | .g_chip_ident = mt9v022_g_chip_ident, | |
833 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
834 | .g_register = mt9v022_g_register, | |
835 | .s_register = mt9v022_s_register, | |
836 | #endif | |
837 | }; | |
838 | ||
3805f201 | 839 | static int mt9v022_enum_fmt(struct v4l2_subdev *sd, unsigned int index, |
760697be GL |
840 | enum v4l2_mbus_pixelcode *code) |
841 | { | |
c4ce6d14 | 842 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
760697be GL |
843 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
844 | ||
3805f201 | 845 | if (index >= mt9v022->num_fmts) |
760697be GL |
846 | return -EINVAL; |
847 | ||
848 | *code = mt9v022->fmts[index].code; | |
849 | return 0; | |
850 | } | |
851 | ||
979ea1dd GL |
852 | static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = { |
853 | .s_stream = mt9v022_s_stream, | |
760697be GL |
854 | .s_mbus_fmt = mt9v022_s_fmt, |
855 | .g_mbus_fmt = mt9v022_g_fmt, | |
856 | .try_mbus_fmt = mt9v022_try_fmt, | |
08590b96 | 857 | .s_crop = mt9v022_s_crop, |
6a6c8786 GL |
858 | .g_crop = mt9v022_g_crop, |
859 | .cropcap = mt9v022_cropcap, | |
760697be | 860 | .enum_mbus_fmt = mt9v022_enum_fmt, |
979ea1dd GL |
861 | }; |
862 | ||
32536108 GL |
863 | static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = { |
864 | .g_skip_top_lines = mt9v022_g_skip_top_lines, | |
865 | }; | |
866 | ||
979ea1dd GL |
867 | static struct v4l2_subdev_ops mt9v022_subdev_ops = { |
868 | .core = &mt9v022_subdev_core_ops, | |
869 | .video = &mt9v022_subdev_video_ops, | |
32536108 | 870 | .sensor = &mt9v022_subdev_sensor_ops, |
979ea1dd GL |
871 | }; |
872 | ||
d2653e92 JD |
873 | static int mt9v022_probe(struct i2c_client *client, |
874 | const struct i2c_device_id *did) | |
7397bfbe GL |
875 | { |
876 | struct mt9v022 *mt9v022; | |
40e2e092 | 877 | struct soc_camera_device *icd = client->dev.platform_data; |
7397bfbe | 878 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); |
40e2e092 | 879 | struct soc_camera_link *icl; |
7397bfbe GL |
880 | int ret; |
881 | ||
40e2e092 GL |
882 | if (!icd) { |
883 | dev_err(&client->dev, "MT9V022: missing soc-camera data!\n"); | |
884 | return -EINVAL; | |
885 | } | |
886 | ||
887 | icl = to_soc_camera_link(icd); | |
7397bfbe GL |
888 | if (!icl) { |
889 | dev_err(&client->dev, "MT9V022 driver needs platform data\n"); | |
890 | return -EINVAL; | |
891 | } | |
892 | ||
893 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { | |
894 | dev_warn(&adapter->dev, | |
895 | "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); | |
896 | return -EIO; | |
897 | } | |
898 | ||
899 | mt9v022 = kzalloc(sizeof(struct mt9v022), GFP_KERNEL); | |
900 | if (!mt9v022) | |
901 | return -ENOMEM; | |
902 | ||
979ea1dd GL |
903 | v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops); |
904 | ||
7397bfbe | 905 | mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT; |
7397bfbe | 906 | |
a0705b07 | 907 | icd->ops = &mt9v022_ops; |
96c75399 GL |
908 | /* |
909 | * MT9V022 _really_ corrupts the first read out line. | |
910 | * TODO: verify on i.MX31 | |
911 | */ | |
32536108 | 912 | mt9v022->y_skip_top = 1; |
6a6c8786 GL |
913 | mt9v022->rect.left = MT9V022_COLUMN_SKIP; |
914 | mt9v022->rect.top = MT9V022_ROW_SKIP; | |
915 | mt9v022->rect.width = MT9V022_MAX_WIDTH; | |
916 | mt9v022->rect.height = MT9V022_MAX_HEIGHT; | |
917 | ||
40e2e092 GL |
918 | ret = mt9v022_video_probe(icd, client); |
919 | if (ret) { | |
920 | icd->ops = NULL; | |
40e2e092 GL |
921 | kfree(mt9v022); |
922 | } | |
7397bfbe | 923 | |
7397bfbe GL |
924 | return ret; |
925 | } | |
926 | ||
927 | static int mt9v022_remove(struct i2c_client *client) | |
928 | { | |
979ea1dd | 929 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
40e2e092 | 930 | struct soc_camera_device *icd = client->dev.platform_data; |
7397bfbe | 931 | |
40e2e092 GL |
932 | icd->ops = NULL; |
933 | mt9v022_video_remove(icd); | |
7397bfbe GL |
934 | kfree(mt9v022); |
935 | ||
936 | return 0; | |
937 | } | |
3760f736 JD |
938 | static const struct i2c_device_id mt9v022_id[] = { |
939 | { "mt9v022", 0 }, | |
940 | { } | |
941 | }; | |
942 | MODULE_DEVICE_TABLE(i2c, mt9v022_id); | |
943 | ||
7397bfbe GL |
944 | static struct i2c_driver mt9v022_i2c_driver = { |
945 | .driver = { | |
946 | .name = "mt9v022", | |
947 | }, | |
948 | .probe = mt9v022_probe, | |
949 | .remove = mt9v022_remove, | |
3760f736 | 950 | .id_table = mt9v022_id, |
7397bfbe GL |
951 | }; |
952 | ||
953 | static int __init mt9v022_mod_init(void) | |
954 | { | |
955 | return i2c_add_driver(&mt9v022_i2c_driver); | |
956 | } | |
957 | ||
958 | static void __exit mt9v022_mod_exit(void) | |
959 | { | |
960 | i2c_del_driver(&mt9v022_i2c_driver); | |
961 | } | |
962 | ||
963 | module_init(mt9v022_mod_init); | |
964 | module_exit(mt9v022_mod_exit); | |
965 | ||
966 | MODULE_DESCRIPTION("Micron MT9V022 Camera driver"); | |
967 | MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>"); | |
968 | MODULE_LICENSE("GPL"); |