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V4L/DVB (10072): soc-camera: Add signal inversion flags to be used by camera drivers
[deliverable/linux.git] / drivers / media / video / mt9m111.c
CommitLineData
77110abb
RJ		 1/*
2 * Driver for MT9M111 CMOS Image Sensor from Micron
3 *
4 * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>
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#include <linux/videodev2.h>
11#include <linux/slab.h>
12#include <linux/i2c.h>
13#include <linux/log2.h>
14#include <linux/gpio.h>
15#include <linux/delay.h>
16
17#include <media/v4l2-common.h>
18#include <media/v4l2-chip-ident.h>
19#include <media/soc_camera.h>
20
21/*
22 * mt9m111 i2c address is 0x5d or 0x48 (depending on SAddr pin)
23 * The platform has to define i2c_board_info and call i2c_register_board_info()
24 */
25
26/* mt9m111: Sensor register addresses */
27#define MT9M111_CHIP_VERSION 0x000
28#define MT9M111_ROW_START 0x001
29#define MT9M111_COLUMN_START 0x002
30#define MT9M111_WINDOW_HEIGHT 0x003
31#define MT9M111_WINDOW_WIDTH 0x004
32#define MT9M111_HORIZONTAL_BLANKING_B 0x005
33#define MT9M111_VERTICAL_BLANKING_B 0x006
34#define MT9M111_HORIZONTAL_BLANKING_A 0x007
35#define MT9M111_VERTICAL_BLANKING_A 0x008
36#define MT9M111_SHUTTER_WIDTH 0x009
37#define MT9M111_ROW_SPEED 0x00a
38#define MT9M111_EXTRA_DELAY 0x00b
39#define MT9M111_SHUTTER_DELAY 0x00c
40#define MT9M111_RESET 0x00d
41#define MT9M111_READ_MODE_B 0x020
42#define MT9M111_READ_MODE_A 0x021
43#define MT9M111_FLASH_CONTROL 0x023
44#define MT9M111_GREEN1_GAIN 0x02b
45#define MT9M111_BLUE_GAIN 0x02c
46#define MT9M111_RED_GAIN 0x02d
47#define MT9M111_GREEN2_GAIN 0x02e
48#define MT9M111_GLOBAL_GAIN 0x02f
49#define MT9M111_CONTEXT_CONTROL 0x0c8
50#define MT9M111_PAGE_MAP 0x0f0
51#define MT9M111_BYTE_WISE_ADDR 0x0f1
52
53#define MT9M111_RESET_SYNC_CHANGES (1 << 15)
54#define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
55#define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8)
56#define MT9M111_RESET_RESET_SOC (1 << 5)
57#define MT9M111_RESET_OUTPUT_DISABLE (1 << 4)
58#define MT9M111_RESET_CHIP_ENABLE (1 << 3)
59#define MT9M111_RESET_ANALOG_STANDBY (1 << 2)
60#define MT9M111_RESET_RESTART_FRAME (1 << 1)
61#define MT9M111_RESET_RESET_MODE (1 << 0)
62
63#define MT9M111_RMB_MIRROR_COLS (1 << 1)
64#define MT9M111_RMB_MIRROR_ROWS (1 << 0)
65#define MT9M111_CTXT_CTRL_RESTART (1 << 15)
66#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12)
67#define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10)
68#define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9)
69#define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8)
70#define MT9M111_CTXT_CTRL_XENON_EN (1 << 7)
71#define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3)
72#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2)
73#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1)
74#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0)
75/*
76 * mt9m111: Colorpipe register addresses (0x100..0x1ff)
77 */
78#define MT9M111_OPER_MODE_CTRL 0x106
79#define MT9M111_OUTPUT_FORMAT_CTRL 0x108
80#define MT9M111_REDUCER_XZOOM_B 0x1a0
81#define MT9M111_REDUCER_XSIZE_B 0x1a1
82#define MT9M111_REDUCER_YZOOM_B 0x1a3
83#define MT9M111_REDUCER_YSIZE_B 0x1a4
84#define MT9M111_REDUCER_XZOOM_A 0x1a6
85#define MT9M111_REDUCER_XSIZE_A 0x1a7
86#define MT9M111_REDUCER_YZOOM_A 0x1a9
87#define MT9M111_REDUCER_YSIZE_A 0x1aa
88
89#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a
90#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b
91
92#define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14)
93
94
95#define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14)
96#define MT9M111_OUTFMT_BYPASS_IFP (1 << 10)
97#define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9)
98#define MT9M111_OUTFMT_RGB (1 << 8)
99#define MT9M111_OUTFMT_RGB565 (0x0 << 6)
100#define MT9M111_OUTFMT_RGB555 (0x1 << 6)
101#define MT9M111_OUTFMT_RGB444x (0x2 << 6)
102#define MT9M111_OUTFMT_RGBx444 (0x3 << 6)
103#define MT9M111_OUTFMT_TST_RAMP_OFF (0x0 << 4)
104#define MT9M111_OUTFMT_TST_RAMP_COL (0x1 << 4)
105#define MT9M111_OUTFMT_TST_RAMP_ROW (0x2 << 4)
106#define MT9M111_OUTFMT_TST_RAMP_FRAME (0x3 << 4)
107#define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3)
108#define MT9M111_OUTFMT_AVG_CHROMA (1 << 2)
109#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y (1 << 1)
110#define MT9M111_OUTFMT_SWAP_RGB_EVEN (1 << 1)
111#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1 << 0)
112/*
113 * mt9m111: Camera control register addresses (0x200..0x2ff not implemented)
114 */
115
116#define reg_read(reg) mt9m111_reg_read(icd, MT9M111_##reg)
117#define reg_write(reg, val) mt9m111_reg_write(icd, MT9M111_##reg, (val))
118#define reg_set(reg, val) mt9m111_reg_set(icd, MT9M111_##reg, (val))
119#define reg_clear(reg, val) mt9m111_reg_clear(icd, MT9M111_##reg, (val))
120
121#define MT9M111_MIN_DARK_ROWS 8
122#define MT9M111_MIN_DARK_COLS 24
123#define MT9M111_MAX_HEIGHT 1024
124#define MT9M111_MAX_WIDTH 1280
125
126#define COL_FMT(_name, _depth, _fourcc, _colorspace) \
127 { .name = _name, .depth = _depth, .fourcc = _fourcc, \
128 .colorspace = _colorspace }
129#define RGB_FMT(_name, _depth, _fourcc) \
130 COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_SRGB)
88f4b899
RJ		 131#define JPG_FMT(_name, _depth, _fourcc) \
132 COL_FMT(_name, _depth, _fourcc, V4L2_COLORSPACE_JPEG)
77110abb
RJ		 133
134static const struct soc_camera_data_format mt9m111_colour_formats[] = {
88f4b899
RJ		 135 JPG_FMT("CbYCrY 16 bit", 16, V4L2_PIX_FMT_UYVY),
136 JPG_FMT("CrYCbY 16 bit", 16, V4L2_PIX_FMT_VYUY),
137 JPG_FMT("YCbYCr 16 bit", 16, V4L2_PIX_FMT_YUYV),
138 JPG_FMT("YCrYCb 16 bit", 16, V4L2_PIX_FMT_YVYU),
77110abb
RJ		 139 RGB_FMT("RGB 565", 16, V4L2_PIX_FMT_RGB565),
140 RGB_FMT("RGB 555", 16, V4L2_PIX_FMT_RGB555),
141 RGB_FMT("Bayer (sRGB) 10 bit", 10, V4L2_PIX_FMT_SBGGR16),
142 RGB_FMT("Bayer (sRGB) 8 bit", 8, V4L2_PIX_FMT_SBGGR8),
143};
144
145enum mt9m111_context {
146 HIGHPOWER = 0,
147 LOWPOWER,
148};
149
150struct mt9m111 {
151 struct i2c_client *client;
152 struct soc_camera_device icd;
153 int model; /* V4L2_IDENT_MT9M111* codes from v4l2-chip-ident.h */
154 enum mt9m111_context context;
155 unsigned int left, top, width, height;
156 u32 pixfmt;
157 unsigned char autoexposure;
158 unsigned char datawidth;
159 unsigned int powered:1;
160 unsigned int hflip:1;
161 unsigned int vflip:1;
162 unsigned int swap_rgb_even_odd:1;
163 unsigned int swap_rgb_red_blue:1;
164 unsigned int swap_yuv_y_chromas:1;
165 unsigned int swap_yuv_cb_cr:1;
166};
167
168static int reg_page_map_set(struct i2c_client *client, const u16 reg)
169{
170 int ret;
171 u16 page;
172 static int lastpage = -1; /* PageMap cache value */
173
174 page = (reg >> 8);
175 if (page == lastpage)
176 return 0;
177 if (page > 2)
178 return -EINVAL;
179
180 ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
506c629a 181 if (!ret)
77110abb
RJ		 182 lastpage = page;
183 return ret;
184}
185
186static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg)
187{
188 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
189 struct i2c_client *client = mt9m111->client;
190 int ret;
191
192 ret = reg_page_map_set(client, reg);
193 if (!ret)
194 ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff)));
195
196 dev_dbg(&icd->dev, "read reg.%03x -> %04x\n", reg, ret);
197 return ret;
198}
199
200static int mt9m111_reg_write(struct soc_camera_device *icd, const u16 reg,
201 const u16 data)
202{
203 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
204 struct i2c_client *client = mt9m111->client;
205 int ret;
206
207 ret = reg_page_map_set(client, reg);
506c629a 208 if (!ret)
77110abb
RJ		 209 ret = i2c_smbus_write_word_data(mt9m111->client, (reg & 0xff),
210 swab16(data));
211 dev_dbg(&icd->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
212 return ret;
213}
214
215static int mt9m111_reg_set(struct soc_camera_device *icd, const u16 reg,
216 const u16 data)
217{
218 int ret;
219
220 ret = mt9m111_reg_read(icd, reg);
221 if (ret >= 0)
222 ret = mt9m111_reg_write(icd, reg, ret | data);
223 return ret;
224}
225
226static int mt9m111_reg_clear(struct soc_camera_device *icd, const u16 reg,
227 const u16 data)
228{
229 int ret;
230
231 ret = mt9m111_reg_read(icd, reg);
232 return mt9m111_reg_write(icd, reg, ret & ~data);
233}
234
235static int mt9m111_set_context(struct soc_camera_device *icd,
236 enum mt9m111_context ctxt)
237{
238 int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B
239 | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B
240 | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B
241 | MT9M111_CTXT_CTRL_VBLANK_SEL_B
242 | MT9M111_CTXT_CTRL_HBLANK_SEL_B;
243 int valA = MT9M111_CTXT_CTRL_RESTART;
244
245 if (ctxt == HIGHPOWER)
246 return reg_write(CONTEXT_CONTROL, valB);
247 else
248 return reg_write(CONTEXT_CONTROL, valA);
249}
250
251static int mt9m111_setup_rect(struct soc_camera_device *icd)
252{
253 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
506c629a 254 int ret, is_raw_format;
77110abb
RJ		 255 int width = mt9m111->width;
256 int height = mt9m111->height;
257
258 if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8)
259 || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16))
260 is_raw_format = 1;
261 else
262 is_raw_format = 0;
263
506c629a
GL		 264 ret = reg_write(COLUMN_START, mt9m111->left);
265 if (!ret)
77110abb
RJ		 266 ret = reg_write(ROW_START, mt9m111->top);
267
268 if (is_raw_format) {
506c629a 269 if (!ret)
77110abb 270 ret = reg_write(WINDOW_WIDTH, width);
506c629a 271 if (!ret)
77110abb
RJ		 272 ret = reg_write(WINDOW_HEIGHT, height);
273 } else {
506c629a 274 if (!ret)
77110abb 275 ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH);
506c629a 276 if (!ret)
77110abb 277 ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT);
506c629a 278 if (!ret)
77110abb 279 ret = reg_write(REDUCER_XSIZE_B, width);
506c629a 280 if (!ret)
77110abb 281 ret = reg_write(REDUCER_YSIZE_B, height);
506c629a 282 if (!ret)
77110abb 283 ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH);
506c629a 284 if (!ret)
77110abb 285 ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT);
506c629a 286 if (!ret)
77110abb 287 ret = reg_write(REDUCER_XSIZE_A, width);
506c629a 288 if (!ret)
77110abb
RJ		 289 ret = reg_write(REDUCER_YSIZE_A, height);
290 }
291
292 return ret;
293}
294
295static int mt9m111_setup_pixfmt(struct soc_camera_device *icd, u16 outfmt)
296{
297 int ret;
298
299 ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt);
506c629a 300 if (!ret)
77110abb
RJ		 301 ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt);
302 return ret;
303}
304
305static int mt9m111_setfmt_bayer8(struct soc_camera_device *icd)
306{
307 return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_PROCESSED_BAYER);
308}
309
310static int mt9m111_setfmt_bayer10(struct soc_camera_device *icd)
311{
77110abb
RJ		 312 return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_BYPASS_IFP);
313}
314
315static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd)
316{
317 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
318 int val = 0;
319
320 if (mt9m111->swap_rgb_red_blue)
321 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
322 if (mt9m111->swap_rgb_even_odd)
323 val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
324 val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
325
326 return mt9m111_setup_pixfmt(icd, val);
327}
328
329static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd)
330{
331 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
332 int val = 0;
333
334 if (mt9m111->swap_rgb_red_blue)
335 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
336 if (mt9m111->swap_rgb_even_odd)
337 val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
338 val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
339
340 return mt9m111_setup_pixfmt(icd, val);
341}
342
343static int mt9m111_setfmt_yuv(struct soc_camera_device *icd)
344{
345 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
346 int val = 0;
347
348 if (mt9m111->swap_yuv_cb_cr)
349 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
350 if (mt9m111->swap_yuv_y_chromas)
351 val |= MT9M111_OUTFMT_SWAP_YCbCr_C_Y;
352
353 return mt9m111_setup_pixfmt(icd, val);
354}
355
356static int mt9m111_enable(struct soc_camera_device *icd)
357{
358 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
81034663 359 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
77110abb
RJ		 360 int ret;
361
81034663
SH		 362 if (icl->power) {
363 ret = icl->power(&mt9m111->client->dev, 1);
364 if (ret < 0) {
365 dev_err(icd->vdev->parent,
366 "Platform failed to power-on the camera.\n");
367 return ret;
368 }
369 }
370
77110abb 371 ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE);
506c629a 372 if (!ret)
77110abb
RJ		 373 mt9m111->powered = 1;
374 return ret;
375}
376
377static int mt9m111_disable(struct soc_camera_device *icd)
378{
379 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
81034663 380 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
77110abb
RJ		 381 int ret;
382
383 ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
506c629a 384 if (!ret)
77110abb 385 mt9m111->powered = 0;
81034663
SH		 386
387 if (icl->power)
388 icl->power(&mt9m111->client->dev, 0);
389
77110abb
RJ		 390 return ret;
391}
392
393static int mt9m111_reset(struct soc_camera_device *icd)
394{
395 int ret;
396
397 ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
506c629a 398 if (!ret)
77110abb 399 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
506c629a 400 if (!ret)
77110abb
RJ		 401 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
402 | MT9M111_RESET_RESET_SOC);
403 return ret;
404}
405
406static int mt9m111_start_capture(struct soc_camera_device *icd)
407{
408 return 0;
409}
410
411static int mt9m111_stop_capture(struct soc_camera_device *icd)
412{
413 return 0;
414}
415
416static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd)
417{
bd73b36f
GL		 418 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
419 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
420 unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING |
77110abb
RJ		 421 SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
422 SOCAM_DATAWIDTH_8;
bd73b36f
GL		 423
424 return soc_camera_apply_sensor_flags(icl, flags);
77110abb
RJ		 425}
426
427static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
428{
429 return 0;
430}
431
432static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
433{
434 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
506c629a 435 int ret;
77110abb
RJ		 436
437 switch (pixfmt) {
438 case V4L2_PIX_FMT_SBGGR8:
439 ret = mt9m111_setfmt_bayer8(icd);
440 break;
441 case V4L2_PIX_FMT_SBGGR16:
442 ret = mt9m111_setfmt_bayer10(icd);
443 break;
444 case V4L2_PIX_FMT_RGB555:
445 ret = mt9m111_setfmt_rgb555(icd);
446 break;
447 case V4L2_PIX_FMT_RGB565:
448 ret = mt9m111_setfmt_rgb565(icd);
449 break;
88f4b899
RJ		 450 case V4L2_PIX_FMT_UYVY:
451 mt9m111->swap_yuv_y_chromas = 0;
452 mt9m111->swap_yuv_cb_cr = 0;
453 ret = mt9m111_setfmt_yuv(icd);
454 break;
455 case V4L2_PIX_FMT_VYUY:
456 mt9m111->swap_yuv_y_chromas = 0;
457 mt9m111->swap_yuv_cb_cr = 1;
458 ret = mt9m111_setfmt_yuv(icd);
459 break;
77110abb 460 case V4L2_PIX_FMT_YUYV:
88f4b899
RJ		 461 mt9m111->swap_yuv_y_chromas = 1;
462 mt9m111->swap_yuv_cb_cr = 0;
463 ret = mt9m111_setfmt_yuv(icd);
464 break;
465 case V4L2_PIX_FMT_YVYU:
466 mt9m111->swap_yuv_y_chromas = 1;
467 mt9m111->swap_yuv_cb_cr = 1;
77110abb
RJ		 468 ret = mt9m111_setfmt_yuv(icd);
469 break;
470 default:
471 dev_err(&icd->dev, "Pixel format not handled : %x\n", pixfmt);
472 ret = -EINVAL;
473 }
474
506c629a 475 if (!ret)
77110abb
RJ		 476 mt9m111->pixfmt = pixfmt;
477
478 return ret;
479}
480
d8fac217
GL		 481static int mt9m111_set_fmt(struct soc_camera_device *icd,
482 __u32 pixfmt, struct v4l2_rect *rect)
77110abb
RJ		 483{
484 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
506c629a 485 int ret;
77110abb
RJ		 486
487 mt9m111->left = rect->left;
488 mt9m111->top = rect->top;
489 mt9m111->width = rect->width;
490 mt9m111->height = rect->height;
491
492 dev_dbg(&icd->dev, "%s fmt=%x left=%d, top=%d, width=%d, height=%d\n",
493 __func__, pixfmt, mt9m111->left, mt9m111->top, mt9m111->width,
494 mt9m111->height);
495
496 ret = mt9m111_setup_rect(icd);
506c629a 497 if (!ret)
77110abb 498 ret = mt9m111_set_pixfmt(icd, pixfmt);
506c629a 499 return ret;
77110abb
RJ		 500}
501
d8fac217
GL		 502static int mt9m111_try_fmt(struct soc_camera_device *icd,
503 struct v4l2_format *f)
77110abb
RJ		 504{
505 if (f->fmt.pix.height > MT9M111_MAX_HEIGHT)
506 f->fmt.pix.height = MT9M111_MAX_HEIGHT;
507 if (f->fmt.pix.width > MT9M111_MAX_WIDTH)
508 f->fmt.pix.width = MT9M111_MAX_WIDTH;
509
510 return 0;
511}
512
513static int mt9m111_get_chip_id(struct soc_camera_device *icd,
514 struct v4l2_chip_ident *id)
515{
516 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
517
518 if (id->match_type != V4L2_CHIP_MATCH_I2C_ADDR)
519 return -EINVAL;
520
521 if (id->match_chip != mt9m111->client->addr)
522 return -ENODEV;
523
524 id->ident = mt9m111->model;
525 id->revision = 0;
526
527 return 0;
528}
529
530#ifdef CONFIG_VIDEO_ADV_DEBUG
531static int mt9m111_get_register(struct soc_camera_device *icd,
532 struct v4l2_register *reg)
533{
534 int val;
535
536 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
537
538 if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
539 return -EINVAL;
540 if (reg->match_chip != mt9m111->client->addr)
541 return -ENODEV;
542
543 val = mt9m111_reg_read(icd, reg->reg);
544 reg->val = (u64)val;
545
546 if (reg->val > 0xffff)
547 return -EIO;
548
549 return 0;
550}
551
552static int mt9m111_set_register(struct soc_camera_device *icd,
553 struct v4l2_register *reg)
554{
555 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
556
557 if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
558 return -EINVAL;
559
560 if (reg->match_chip != mt9m111->client->addr)
561 return -ENODEV;
562
563 if (mt9m111_reg_write(icd, reg->reg, reg->val) < 0)
564 return -EIO;
565
566 return 0;
567}
568#endif
569
570static const struct v4l2_queryctrl mt9m111_controls[] = {
571 {
572 .id = V4L2_CID_VFLIP,
573 .type = V4L2_CTRL_TYPE_BOOLEAN,
574 .name = "Flip Verticaly",
575 .minimum = 0,
576 .maximum = 1,
577 .step = 1,
578 .default_value = 0,
579 }, {
580 .id = V4L2_CID_HFLIP,
581 .type = V4L2_CTRL_TYPE_BOOLEAN,
582 .name = "Flip Horizontaly",
583 .minimum = 0,
584 .maximum = 1,
585 .step = 1,
586 .default_value = 0,
587 }, { /* gain = 1/32*val (=>gain=1 if val==32) */
588 .id = V4L2_CID_GAIN,
589 .type = V4L2_CTRL_TYPE_INTEGER,
590 .name = "Gain",
591 .minimum = 0,
592 .maximum = 63 * 2 * 2,
593 .step = 1,
594 .default_value = 32,
595 .flags = V4L2_CTRL_FLAG_SLIDER,
596 }, {
597 .id = V4L2_CID_EXPOSURE_AUTO,
598 .type = V4L2_CTRL_TYPE_BOOLEAN,
599 .name = "Auto Exposure",
600 .minimum = 0,
601 .maximum = 1,
602 .step = 1,
603 .default_value = 1,
604 }
605};
606
607static int mt9m111_video_probe(struct soc_camera_device *);
608static void mt9m111_video_remove(struct soc_camera_device *);
609static int mt9m111_get_control(struct soc_camera_device *,
610 struct v4l2_control *);
611static int mt9m111_set_control(struct soc_camera_device *,
612 struct v4l2_control *);
613static int mt9m111_resume(struct soc_camera_device *icd);
614static int mt9m111_init(struct soc_camera_device *icd);
615static int mt9m111_release(struct soc_camera_device *icd);
616
617static struct soc_camera_ops mt9m111_ops = {
618 .owner = THIS_MODULE,
619 .probe = mt9m111_video_probe,
620 .remove = mt9m111_video_remove,
621 .init = mt9m111_init,
622 .resume = mt9m111_resume,
623 .release = mt9m111_release,
624 .start_capture = mt9m111_start_capture,
625 .stop_capture = mt9m111_stop_capture,
d8fac217
GL		 626 .set_fmt = mt9m111_set_fmt,
627 .try_fmt = mt9m111_try_fmt,
77110abb
RJ		 628 .query_bus_param = mt9m111_query_bus_param,
629 .set_bus_param = mt9m111_set_bus_param,
630 .controls = mt9m111_controls,
631 .num_controls = ARRAY_SIZE(mt9m111_controls),
632 .get_control = mt9m111_get_control,
633 .set_control = mt9m111_set_control,
634 .get_chip_id = mt9m111_get_chip_id,
635#ifdef CONFIG_VIDEO_ADV_DEBUG
636 .get_register = mt9m111_get_register,
637 .set_register = mt9m111_set_register,
638#endif
639};
640
641static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask)
642{
643 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
644 int ret;
645
646 if (mt9m111->context == HIGHPOWER) {
647 if (flip)
648 ret = reg_set(READ_MODE_B, mask);
649 else
650 ret = reg_clear(READ_MODE_B, mask);
651 } else {
652 if (flip)
653 ret = reg_set(READ_MODE_A, mask);
654 else
655 ret = reg_clear(READ_MODE_A, mask);
656 }
657
658 return ret;
659}
660
661static int mt9m111_get_global_gain(struct soc_camera_device *icd)
662{
0f28b793 663 int data;
77110abb
RJ		 664
665 data = reg_read(GLOBAL_GAIN);
666 if (data >= 0)
0f28b793 667 return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
668 (1 << ((data >> 9) & 1));
669 return data;
77110abb 670}
0f28b793 671
77110abb
RJ		 672static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain)
673{
674 u16 val;
675
676 if (gain > 63 * 2 * 2)
677 return -EINVAL;
678
679 icd->gain = gain;
680 if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
681 val = (1 << 10) | (1 << 9) | (gain / 4);
682 else if ((gain >= 64) && (gain < 64 * 2))
506c629a 683 val = (1 << 9) | (gain / 2);
77110abb
RJ		 684 else
685 val = gain;
686
687 return reg_write(GLOBAL_GAIN, val);
688}
689
690static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on)
691{
692 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
693 int ret;
694
695 if (on)
696 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
697 else
698 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
699
506c629a 700 if (!ret)
77110abb
RJ		 701 mt9m111->autoexposure = on;
702
703 return ret;
704}
705static int mt9m111_get_control(struct soc_camera_device *icd,
706 struct v4l2_control *ctrl)
707{
708 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
709 int data;
710
711 switch (ctrl->id) {
712 case V4L2_CID_VFLIP:
713 if (mt9m111->context == HIGHPOWER)
714 data = reg_read(READ_MODE_B);
715 else
716 data = reg_read(READ_MODE_A);
717
718 if (data < 0)
719 return -EIO;
720 ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
721 break;
722 case V4L2_CID_HFLIP:
723 if (mt9m111->context == HIGHPOWER)
724 data = reg_read(READ_MODE_B);
725 else
726 data = reg_read(READ_MODE_A);
727
728 if (data < 0)
729 return -EIO;
730 ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
731 break;
732 case V4L2_CID_GAIN:
733 data = mt9m111_get_global_gain(icd);
734 if (data < 0)
735 return data;
736 ctrl->value = data;
737 break;
738 case V4L2_CID_EXPOSURE_AUTO:
739 ctrl->value = mt9m111->autoexposure;
740 break;
741 }
742 return 0;
743}
744
745static int mt9m111_set_control(struct soc_camera_device *icd,
746 struct v4l2_control *ctrl)
747{
748 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
749 const struct v4l2_queryctrl *qctrl;
506c629a 750 int ret;
77110abb
RJ		 751
752 qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
753
754 if (!qctrl)
755 return -EINVAL;
756
757 switch (ctrl->id) {
758 case V4L2_CID_VFLIP:
759 mt9m111->vflip = ctrl->value;
760 ret = mt9m111_set_flip(icd, ctrl->value,
761 MT9M111_RMB_MIRROR_ROWS);
762 break;
763 case V4L2_CID_HFLIP:
764 mt9m111->hflip = ctrl->value;
765 ret = mt9m111_set_flip(icd, ctrl->value,
766 MT9M111_RMB_MIRROR_COLS);
767 break;
768 case V4L2_CID_GAIN:
769 ret = mt9m111_set_global_gain(icd, ctrl->value);
770 break;
771 case V4L2_CID_EXPOSURE_AUTO:
772 ret = mt9m111_set_autoexposure(icd, ctrl->value);
773 break;
774 default:
775 ret = -EINVAL;
776 }
777
506c629a 778 return ret;
77110abb
RJ		 779}
780
ba77531f 781static int mt9m111_restore_state(struct soc_camera_device *icd)
77110abb
RJ		 782{
783 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
784
785 mt9m111_set_context(icd, mt9m111->context);
786 mt9m111_set_pixfmt(icd, mt9m111->pixfmt);
787 mt9m111_setup_rect(icd);
788 mt9m111_set_flip(icd, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
789 mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
790 mt9m111_set_global_gain(icd, icd->gain);
791 mt9m111_set_autoexposure(icd, mt9m111->autoexposure);
792 return 0;
793}
794
795static int mt9m111_resume(struct soc_camera_device *icd)
796{
797 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
798 int ret = 0;
799
800 if (mt9m111->powered) {
801 ret = mt9m111_enable(icd);
506c629a
GL		 802 if (!ret)
803 ret = mt9m111_reset(icd);
804 if (!ret)
805 ret = mt9m111_restore_state(icd);
77110abb
RJ		 806 }
807 return ret;
808}
809
810static int mt9m111_init(struct soc_camera_device *icd)
811{
812 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
813 int ret;
814
815 mt9m111->context = HIGHPOWER;
816 ret = mt9m111_enable(icd);
506c629a
GL		 817 if (!ret)
818 ret = mt9m111_reset(icd);
819 if (!ret)
820 ret = mt9m111_set_context(icd, mt9m111->context);
821 if (!ret)
822 ret = mt9m111_set_autoexposure(icd, mt9m111->autoexposure);
823 if (ret)
77110abb 824 dev_err(&icd->dev, "mt9m111 init failed: %d\n", ret);
506c629a 825 return ret;
77110abb
RJ		 826}
827
828static int mt9m111_release(struct soc_camera_device *icd)
829{
830 int ret;
831
832 ret = mt9m111_disable(icd);
833 if (ret < 0)
834 dev_err(&icd->dev, "mt9m111 release failed: %d\n", ret);
835
506c629a 836 return ret;
77110abb
RJ		 837}
838
839/*
840 * Interface active, can use i2c. If it fails, it can indeed mean, that
841 * this wasn't our capture interface, so, we wait for the right one
842 */
843static int mt9m111_video_probe(struct soc_camera_device *icd)
844{
845 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
846 s32 data;
847 int ret;
848
849 /*
850 * We must have a parent by now. And it cannot be a wrong one.
851 * So this entire test is completely redundant.
852 */
853 if (!icd->dev.parent ||
854 to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
855 return -ENODEV;
856
857 ret = mt9m111_enable(icd);
858 if (ret)
859 goto ei2c;
860 ret = mt9m111_reset(icd);
861 if (ret)
862 goto ei2c;
863
864 data = reg_read(CHIP_VERSION);
865
866 switch (data) {
867 case 0x143a:
868 mt9m111->model = V4L2_IDENT_MT9M111;
869 icd->formats = mt9m111_colour_formats;
870 icd->num_formats = ARRAY_SIZE(mt9m111_colour_formats);
871 break;
872 default:
873 ret = -ENODEV;
874 dev_err(&icd->dev,
875 "No MT9M111 chip detected, register read %x\n", data);
876 goto ei2c;
877 }
878
879 dev_info(&icd->dev, "Detected a MT9M111 chip ID 0x143a\n");
880
881 ret = soc_camera_video_start(icd);
882 if (ret)
883 goto eisis;
884
885 mt9m111->autoexposure = 1;
886
887 mt9m111->swap_rgb_even_odd = 1;
888 mt9m111->swap_rgb_red_blue = 1;
889
890 return 0;
891eisis:
892ei2c:
893 return ret;
894}
895
896static void mt9m111_video_remove(struct soc_camera_device *icd)
897{
898 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
899
900 dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m111->client->addr,
901 mt9m111->icd.dev.parent, mt9m111->icd.vdev);
902 soc_camera_video_stop(&mt9m111->icd);
903}
904
905static int mt9m111_probe(struct i2c_client *client,
906 const struct i2c_device_id *did)
907{
908 struct mt9m111 *mt9m111;
909 struct soc_camera_device *icd;
910 struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
911 struct soc_camera_link *icl = client->dev.platform_data;
912 int ret;
913
914 if (!icl) {
915 dev_err(&client->dev, "MT9M111 driver needs platform data\n");
916 return -EINVAL;
917 }
918
919 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
920 dev_warn(&adapter->dev,
921 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
922 return -EIO;
923 }
924
925 mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL);
926 if (!mt9m111)
927 return -ENOMEM;
928
929 mt9m111->client = client;
930 i2c_set_clientdata(client, mt9m111);
931
932 /* Second stage probe - when a capture adapter is there */
933 icd = &mt9m111->icd;
934 icd->ops = &mt9m111_ops;
935 icd->control = &client->dev;
936 icd->x_min = MT9M111_MIN_DARK_COLS;
937 icd->y_min = MT9M111_MIN_DARK_ROWS;
938 icd->x_current = icd->x_min;
939 icd->y_current = icd->y_min;
940 icd->width_min = MT9M111_MIN_DARK_ROWS;
941 icd->width_max = MT9M111_MAX_WIDTH;
942 icd->height_min = MT9M111_MIN_DARK_COLS;
943 icd->height_max = MT9M111_MAX_HEIGHT;
944 icd->y_skip_top = 0;
945 icd->iface = icl->bus_id;
946
947 ret = soc_camera_device_register(icd);
948 if (ret)
949 goto eisdr;
950 return 0;
951
952eisdr:
953 kfree(mt9m111);
954 return ret;
955}
956
957static int mt9m111_remove(struct i2c_client *client)
958{
959 struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
960 soc_camera_device_unregister(&mt9m111->icd);
961 kfree(mt9m111);
962
963 return 0;
964}
965
966static const struct i2c_device_id mt9m111_id[] = {
967 { "mt9m111", 0 },
968 { }
969};
970MODULE_DEVICE_TABLE(i2c, mt9m111_id);
971
972static struct i2c_driver mt9m111_i2c_driver = {
973 .driver = {
974 .name = "mt9m111",
975 },
976 .probe = mt9m111_probe,
977 .remove = mt9m111_remove,
978 .id_table = mt9m111_id,
979};
980
981static int __init mt9m111_mod_init(void)
982{
983 return i2c_add_driver(&mt9m111_i2c_driver);
984}
985
986static void __exit mt9m111_mod_exit(void)
987{
988 i2c_del_driver(&mt9m111_i2c_driver);
989}
990
991module_init(mt9m111_mod_init);
992module_exit(mt9m111_mod_exit);
993
994MODULE_DESCRIPTION("Micron MT9M111 Camera driver");
995MODULE_AUTHOR("Robert Jarzmik");
996MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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