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V4L/DVB (10140): gp8psk: fix incorrect return code (EINVAL instead of -EINVAL)
[mirror_ubuntu-artful-kernel.git] / drivers / media / video / mt9m111.c
CommitLineData
77110abb 1/*
d7f83a51 2 * Driver for MT9M111/MT9M112 CMOS Image Sensor from Micron
77110abb
RJ		 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/*
d7f83a51 22 * mt9m111 and mt9m112 i2c address is 0x5d or 0x48 (depending on SAddr pin)
77110abb
RJ		 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)
39bf372f 93#define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1)
77110abb
RJ		 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;
d7f83a51 153 int model; /* V4L2_IDENT_MT9M11x* codes from v4l2-chip-ident.h */
77110abb
RJ		 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;
39bf372f 166 unsigned int autowhitebalance:1;
77110abb
RJ		 167};
168
169static int reg_page_map_set(struct i2c_client *client, const u16 reg)
170{
171 int ret;
172 u16 page;
173 static int lastpage = -1; /* PageMap cache value */
174
175 page = (reg >> 8);
176 if (page == lastpage)
177 return 0;
178 if (page > 2)
179 return -EINVAL;
180
181 ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
506c629a 182 if (!ret)
77110abb
RJ		 183 lastpage = page;
184 return ret;
185}
186
187static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg)
188{
189 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
190 struct i2c_client *client = mt9m111->client;
191 int ret;
192
193 ret = reg_page_map_set(client, reg);
194 if (!ret)
195 ret = swab16(i2c_smbus_read_word_data(client, (reg & 0xff)));
196
197 dev_dbg(&icd->dev, "read reg.%03x -> %04x\n", reg, ret);
198 return ret;
199}
200
201static int mt9m111_reg_write(struct soc_camera_device *icd, const u16 reg,
202 const u16 data)
203{
204 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
205 struct i2c_client *client = mt9m111->client;
206 int ret;
207
208 ret = reg_page_map_set(client, reg);
506c629a 209 if (!ret)
77110abb
RJ		 210 ret = i2c_smbus_write_word_data(mt9m111->client, (reg & 0xff),
211 swab16(data));
212 dev_dbg(&icd->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
213 return ret;
214}
215
216static int mt9m111_reg_set(struct soc_camera_device *icd, const u16 reg,
217 const u16 data)
218{
219 int ret;
220
221 ret = mt9m111_reg_read(icd, reg);
222 if (ret >= 0)
223 ret = mt9m111_reg_write(icd, reg, ret | data);
224 return ret;
225}
226
227static int mt9m111_reg_clear(struct soc_camera_device *icd, const u16 reg,
228 const u16 data)
229{
230 int ret;
231
232 ret = mt9m111_reg_read(icd, reg);
233 return mt9m111_reg_write(icd, reg, ret & ~data);
234}
235
236static int mt9m111_set_context(struct soc_camera_device *icd,
237 enum mt9m111_context ctxt)
238{
239 int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B
240 | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B
241 | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B
242 | MT9M111_CTXT_CTRL_VBLANK_SEL_B
243 | MT9M111_CTXT_CTRL_HBLANK_SEL_B;
244 int valA = MT9M111_CTXT_CTRL_RESTART;
245
246 if (ctxt == HIGHPOWER)
247 return reg_write(CONTEXT_CONTROL, valB);
248 else
249 return reg_write(CONTEXT_CONTROL, valA);
250}
251
252static int mt9m111_setup_rect(struct soc_camera_device *icd)
253{
254 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
506c629a 255 int ret, is_raw_format;
77110abb
RJ		 256 int width = mt9m111->width;
257 int height = mt9m111->height;
258
259 if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8)
260 || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16))
261 is_raw_format = 1;
262 else
263 is_raw_format = 0;
264
506c629a
GL		 265 ret = reg_write(COLUMN_START, mt9m111->left);
266 if (!ret)
77110abb
RJ		 267 ret = reg_write(ROW_START, mt9m111->top);
268
269 if (is_raw_format) {
506c629a 270 if (!ret)
77110abb 271 ret = reg_write(WINDOW_WIDTH, width);
506c629a 272 if (!ret)
77110abb
RJ		 273 ret = reg_write(WINDOW_HEIGHT, height);
274 } else {
506c629a 275 if (!ret)
77110abb 276 ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH);
506c629a 277 if (!ret)
77110abb 278 ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT);
506c629a 279 if (!ret)
77110abb 280 ret = reg_write(REDUCER_XSIZE_B, width);
506c629a 281 if (!ret)
77110abb 282 ret = reg_write(REDUCER_YSIZE_B, height);
506c629a 283 if (!ret)
77110abb 284 ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH);
506c629a 285 if (!ret)
77110abb 286 ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT);
506c629a 287 if (!ret)
77110abb 288 ret = reg_write(REDUCER_XSIZE_A, width);
506c629a 289 if (!ret)
77110abb
RJ		 290 ret = reg_write(REDUCER_YSIZE_A, height);
291 }
292
293 return ret;
294}
295
296static int mt9m111_setup_pixfmt(struct soc_camera_device *icd, u16 outfmt)
297{
298 int ret;
299
300 ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt);
506c629a 301 if (!ret)
77110abb
RJ		 302 ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt);
303 return ret;
304}
305
306static int mt9m111_setfmt_bayer8(struct soc_camera_device *icd)
307{
308 return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_PROCESSED_BAYER);
309}
310
311static int mt9m111_setfmt_bayer10(struct soc_camera_device *icd)
312{
77110abb
RJ		 313 return mt9m111_setup_pixfmt(icd, MT9M111_OUTFMT_BYPASS_IFP);
314}
315
316static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd)
317{
318 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
319 int val = 0;
320
321 if (mt9m111->swap_rgb_red_blue)
322 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
323 if (mt9m111->swap_rgb_even_odd)
324 val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
325 val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
326
327 return mt9m111_setup_pixfmt(icd, val);
328}
329
330static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd)
331{
332 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
333 int val = 0;
334
335 if (mt9m111->swap_rgb_red_blue)
336 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
337 if (mt9m111->swap_rgb_even_odd)
338 val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
339 val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
340
341 return mt9m111_setup_pixfmt(icd, val);
342}
343
344static int mt9m111_setfmt_yuv(struct soc_camera_device *icd)
345{
346 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
347 int val = 0;
348
349 if (mt9m111->swap_yuv_cb_cr)
350 val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
351 if (mt9m111->swap_yuv_y_chromas)
352 val |= MT9M111_OUTFMT_SWAP_YCbCr_C_Y;
353
354 return mt9m111_setup_pixfmt(icd, val);
355}
356
357static int mt9m111_enable(struct soc_camera_device *icd)
358{
359 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
81034663 360 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
77110abb
RJ		 361 int ret;
362
81034663
SH		 363 if (icl->power) {
364 ret = icl->power(&mt9m111->client->dev, 1);
365 if (ret < 0) {
366 dev_err(icd->vdev->parent,
367 "Platform failed to power-on the camera.\n");
368 return ret;
369 }
370 }
371
77110abb 372 ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE);
506c629a 373 if (!ret)
77110abb
RJ		 374 mt9m111->powered = 1;
375 return ret;
376}
377
378static int mt9m111_disable(struct soc_camera_device *icd)
379{
380 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
81034663 381 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
77110abb
RJ		 382 int ret;
383
384 ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
506c629a 385 if (!ret)
77110abb 386 mt9m111->powered = 0;
81034663
SH		 387
388 if (icl->power)
389 icl->power(&mt9m111->client->dev, 0);
390
77110abb
RJ		 391 return ret;
392}
393
394static int mt9m111_reset(struct soc_camera_device *icd)
395{
396 int ret;
397
398 ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
506c629a 399 if (!ret)
77110abb 400 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
506c629a 401 if (!ret)
77110abb
RJ		 402 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
403 | MT9M111_RESET_RESET_SOC);
404 return ret;
405}
406
407static int mt9m111_start_capture(struct soc_camera_device *icd)
408{
409 return 0;
410}
411
412static int mt9m111_stop_capture(struct soc_camera_device *icd)
413{
414 return 0;
415}
416
417static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd)
418{
bd73b36f
GL		 419 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
420 struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
421 unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING |
77110abb
RJ		 422 SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
423 SOCAM_DATAWIDTH_8;
bd73b36f
GL		 424
425 return soc_camera_apply_sensor_flags(icl, flags);
77110abb
RJ		 426}
427
428static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
429{
430 return 0;
431}
432
433static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
434{
435 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
506c629a 436 int ret;
77110abb
RJ		 437
438 switch (pixfmt) {
439 case V4L2_PIX_FMT_SBGGR8:
440 ret = mt9m111_setfmt_bayer8(icd);
441 break;
442 case V4L2_PIX_FMT_SBGGR16:
443 ret = mt9m111_setfmt_bayer10(icd);
444 break;
445 case V4L2_PIX_FMT_RGB555:
446 ret = mt9m111_setfmt_rgb555(icd);
447 break;
448 case V4L2_PIX_FMT_RGB565:
449 ret = mt9m111_setfmt_rgb565(icd);
450 break;
88f4b899
RJ		 451 case V4L2_PIX_FMT_UYVY:
452 mt9m111->swap_yuv_y_chromas = 0;
453 mt9m111->swap_yuv_cb_cr = 0;
454 ret = mt9m111_setfmt_yuv(icd);
455 break;
456 case V4L2_PIX_FMT_VYUY:
457 mt9m111->swap_yuv_y_chromas = 0;
458 mt9m111->swap_yuv_cb_cr = 1;
459 ret = mt9m111_setfmt_yuv(icd);
460 break;
77110abb 461 case V4L2_PIX_FMT_YUYV:
88f4b899
RJ		 462 mt9m111->swap_yuv_y_chromas = 1;
463 mt9m111->swap_yuv_cb_cr = 0;
464 ret = mt9m111_setfmt_yuv(icd);
465 break;
466 case V4L2_PIX_FMT_YVYU:
467 mt9m111->swap_yuv_y_chromas = 1;
468 mt9m111->swap_yuv_cb_cr = 1;
77110abb
RJ		 469 ret = mt9m111_setfmt_yuv(icd);
470 break;
471 default:
472 dev_err(&icd->dev, "Pixel format not handled : %x\n", pixfmt);
473 ret = -EINVAL;
474 }
475
506c629a 476 if (!ret)
77110abb
RJ		 477 mt9m111->pixfmt = pixfmt;
478
479 return ret;
480}
481
d8fac217
GL		 482static int mt9m111_set_fmt(struct soc_camera_device *icd,
483 __u32 pixfmt, struct v4l2_rect *rect)
77110abb
RJ		 484{
485 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
506c629a 486 int ret;
77110abb
RJ		 487
488 mt9m111->left = rect->left;
489 mt9m111->top = rect->top;
490 mt9m111->width = rect->width;
491 mt9m111->height = rect->height;
492
493 dev_dbg(&icd->dev, "%s fmt=%x left=%d, top=%d, width=%d, height=%d\n",
494 __func__, pixfmt, mt9m111->left, mt9m111->top, mt9m111->width,
495 mt9m111->height);
496
497 ret = mt9m111_setup_rect(icd);
506c629a 498 if (!ret)
77110abb 499 ret = mt9m111_set_pixfmt(icd, pixfmt);
506c629a 500 return ret;
77110abb
RJ		 501}
502
d8fac217
GL		 503static int mt9m111_try_fmt(struct soc_camera_device *icd,
504 struct v4l2_format *f)
77110abb 505{
64f5905e
GL		 506 struct v4l2_pix_format *pix = &f->fmt.pix;
507
508 if (pix->height > MT9M111_MAX_HEIGHT)
509 pix->height = MT9M111_MAX_HEIGHT;
510 if (pix->width > MT9M111_MAX_WIDTH)
511 pix->width = MT9M111_MAX_WIDTH;
77110abb
RJ		 512
513 return 0;
514}
515
516static int mt9m111_get_chip_id(struct soc_camera_device *icd,
517 struct v4l2_chip_ident *id)
518{
519 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
520
521 if (id->match_type != V4L2_CHIP_MATCH_I2C_ADDR)
522 return -EINVAL;
523
524 if (id->match_chip != mt9m111->client->addr)
525 return -ENODEV;
526
527 id->ident = mt9m111->model;
528 id->revision = 0;
529
530 return 0;
531}
532
533#ifdef CONFIG_VIDEO_ADV_DEBUG
534static int mt9m111_get_register(struct soc_camera_device *icd,
535 struct v4l2_register *reg)
536{
537 int val;
538
539 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
540
541 if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
542 return -EINVAL;
543 if (reg->match_chip != mt9m111->client->addr)
544 return -ENODEV;
545
546 val = mt9m111_reg_read(icd, reg->reg);
547 reg->val = (u64)val;
548
549 if (reg->val > 0xffff)
550 return -EIO;
551
552 return 0;
553}
554
555static int mt9m111_set_register(struct soc_camera_device *icd,
556 struct v4l2_register *reg)
557{
558 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
559
560 if (reg->match_type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
561 return -EINVAL;
562
563 if (reg->match_chip != mt9m111->client->addr)
564 return -ENODEV;
565
566 if (mt9m111_reg_write(icd, reg->reg, reg->val) < 0)
567 return -EIO;
568
569 return 0;
570}
571#endif
572
573static const struct v4l2_queryctrl mt9m111_controls[] = {
574 {
575 .id = V4L2_CID_VFLIP,
576 .type = V4L2_CTRL_TYPE_BOOLEAN,
577 .name = "Flip Verticaly",
578 .minimum = 0,
579 .maximum = 1,
580 .step = 1,
581 .default_value = 0,
582 }, {
583 .id = V4L2_CID_HFLIP,
584 .type = V4L2_CTRL_TYPE_BOOLEAN,
585 .name = "Flip Horizontaly",
586 .minimum = 0,
587 .maximum = 1,
588 .step = 1,
589 .default_value = 0,
590 }, { /* gain = 1/32*val (=>gain=1 if val==32) */
591 .id = V4L2_CID_GAIN,
592 .type = V4L2_CTRL_TYPE_INTEGER,
593 .name = "Gain",
594 .minimum = 0,
595 .maximum = 63 * 2 * 2,
596 .step = 1,
597 .default_value = 32,
598 .flags = V4L2_CTRL_FLAG_SLIDER,
599 }, {
600 .id = V4L2_CID_EXPOSURE_AUTO,
601 .type = V4L2_CTRL_TYPE_BOOLEAN,
602 .name = "Auto Exposure",
603 .minimum = 0,
604 .maximum = 1,
605 .step = 1,
606 .default_value = 1,
607 }
608};
609
610static int mt9m111_video_probe(struct soc_camera_device *);
611static void mt9m111_video_remove(struct soc_camera_device *);
612static int mt9m111_get_control(struct soc_camera_device *,
613 struct v4l2_control *);
614static int mt9m111_set_control(struct soc_camera_device *,
615 struct v4l2_control *);
616static int mt9m111_resume(struct soc_camera_device *icd);
617static int mt9m111_init(struct soc_camera_device *icd);
618static int mt9m111_release(struct soc_camera_device *icd);
619
620static struct soc_camera_ops mt9m111_ops = {
621 .owner = THIS_MODULE,
622 .probe = mt9m111_video_probe,
623 .remove = mt9m111_video_remove,
624 .init = mt9m111_init,
625 .resume = mt9m111_resume,
626 .release = mt9m111_release,
627 .start_capture = mt9m111_start_capture,
628 .stop_capture = mt9m111_stop_capture,
d8fac217
GL		 629 .set_fmt = mt9m111_set_fmt,
630 .try_fmt = mt9m111_try_fmt,
77110abb
RJ		 631 .query_bus_param = mt9m111_query_bus_param,
632 .set_bus_param = mt9m111_set_bus_param,
633 .controls = mt9m111_controls,
634 .num_controls = ARRAY_SIZE(mt9m111_controls),
635 .get_control = mt9m111_get_control,
636 .set_control = mt9m111_set_control,
637 .get_chip_id = mt9m111_get_chip_id,
638#ifdef CONFIG_VIDEO_ADV_DEBUG
639 .get_register = mt9m111_get_register,
640 .set_register = mt9m111_set_register,
641#endif
642};
643
644static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask)
645{
646 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
647 int ret;
648
649 if (mt9m111->context == HIGHPOWER) {
650 if (flip)
651 ret = reg_set(READ_MODE_B, mask);
652 else
653 ret = reg_clear(READ_MODE_B, mask);
654 } else {
655 if (flip)
656 ret = reg_set(READ_MODE_A, mask);
657 else
658 ret = reg_clear(READ_MODE_A, mask);
659 }
660
661 return ret;
662}
663
664static int mt9m111_get_global_gain(struct soc_camera_device *icd)
665{
0f28b793 666 int data;
77110abb
RJ		 667
668 data = reg_read(GLOBAL_GAIN);
669 if (data >= 0)
0f28b793 670 return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
671 (1 << ((data >> 9) & 1));
672 return data;
77110abb 673}
0f28b793 674
77110abb
RJ		 675static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain)
676{
677 u16 val;
678
679 if (gain > 63 * 2 * 2)
680 return -EINVAL;
681
682 icd->gain = gain;
683 if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
684 val = (1 << 10) | (1 << 9) | (gain / 4);
685 else if ((gain >= 64) && (gain < 64 * 2))
506c629a 686 val = (1 << 9) | (gain / 2);
77110abb
RJ		 687 else
688 val = gain;
689
690 return reg_write(GLOBAL_GAIN, val);
691}
692
693static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on)
694{
695 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
696 int ret;
697
698 if (on)
699 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
700 else
701 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
702
506c629a 703 if (!ret)
77110abb
RJ		 704 mt9m111->autoexposure = on;
705
706 return ret;
707}
39bf372f
RJ		 708
709static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on)
710{
711 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
712 int ret;
713
714 if (on)
715 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
716 else
717 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
718
719 if (!ret)
720 mt9m111->autowhitebalance = on;
721
722 return ret;
723}
724
77110abb
RJ		 725static int mt9m111_get_control(struct soc_camera_device *icd,
726 struct v4l2_control *ctrl)
727{
728 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
729 int data;
730
731 switch (ctrl->id) {
732 case V4L2_CID_VFLIP:
733 if (mt9m111->context == HIGHPOWER)
734 data = reg_read(READ_MODE_B);
735 else
736 data = reg_read(READ_MODE_A);
737
738 if (data < 0)
739 return -EIO;
740 ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
741 break;
742 case V4L2_CID_HFLIP:
743 if (mt9m111->context == HIGHPOWER)
744 data = reg_read(READ_MODE_B);
745 else
746 data = reg_read(READ_MODE_A);
747
748 if (data < 0)
749 return -EIO;
750 ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
751 break;
752 case V4L2_CID_GAIN:
753 data = mt9m111_get_global_gain(icd);
754 if (data < 0)
755 return data;
756 ctrl->value = data;
757 break;
758 case V4L2_CID_EXPOSURE_AUTO:
759 ctrl->value = mt9m111->autoexposure;
760 break;
39bf372f
RJ		 761 case V4L2_CID_AUTO_WHITE_BALANCE:
762 ctrl->value = mt9m111->autowhitebalance;
763 break;
77110abb
RJ		 764 }
765 return 0;
766}
767
768static int mt9m111_set_control(struct soc_camera_device *icd,
769 struct v4l2_control *ctrl)
770{
771 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
772 const struct v4l2_queryctrl *qctrl;
506c629a 773 int ret;
77110abb
RJ		 774
775 qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
776
777 if (!qctrl)
778 return -EINVAL;
779
780 switch (ctrl->id) {
781 case V4L2_CID_VFLIP:
782 mt9m111->vflip = ctrl->value;
783 ret = mt9m111_set_flip(icd, ctrl->value,
784 MT9M111_RMB_MIRROR_ROWS);
785 break;
786 case V4L2_CID_HFLIP:
787 mt9m111->hflip = ctrl->value;
788 ret = mt9m111_set_flip(icd, ctrl->value,
789 MT9M111_RMB_MIRROR_COLS);
790 break;
791 case V4L2_CID_GAIN:
792 ret = mt9m111_set_global_gain(icd, ctrl->value);
793 break;
794 case V4L2_CID_EXPOSURE_AUTO:
795 ret = mt9m111_set_autoexposure(icd, ctrl->value);
796 break;
39bf372f
RJ		 797 case V4L2_CID_AUTO_WHITE_BALANCE:
798 ret = mt9m111_set_autowhitebalance(icd, ctrl->value);
799 break;
77110abb
RJ		 800 default:
801 ret = -EINVAL;
802 }
803
506c629a 804 return ret;
77110abb
RJ		 805}
806
ba77531f 807static int mt9m111_restore_state(struct soc_camera_device *icd)
77110abb
RJ		 808{
809 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
810
811 mt9m111_set_context(icd, mt9m111->context);
812 mt9m111_set_pixfmt(icd, mt9m111->pixfmt);
813 mt9m111_setup_rect(icd);
814 mt9m111_set_flip(icd, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
815 mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
816 mt9m111_set_global_gain(icd, icd->gain);
817 mt9m111_set_autoexposure(icd, mt9m111->autoexposure);
39bf372f 818 mt9m111_set_autowhitebalance(icd, mt9m111->autowhitebalance);
77110abb
RJ		 819 return 0;
820}
821
822static int mt9m111_resume(struct soc_camera_device *icd)
823{
824 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
825 int ret = 0;
826
827 if (mt9m111->powered) {
828 ret = mt9m111_enable(icd);
506c629a
GL		 829 if (!ret)
830 ret = mt9m111_reset(icd);
831 if (!ret)
832 ret = mt9m111_restore_state(icd);
77110abb
RJ		 833 }
834 return ret;
835}
836
837static int mt9m111_init(struct soc_camera_device *icd)
838{
839 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
840 int ret;
841
842 mt9m111->context = HIGHPOWER;
843 ret = mt9m111_enable(icd);
506c629a
GL		 844 if (!ret)
845 ret = mt9m111_reset(icd);
846 if (!ret)
847 ret = mt9m111_set_context(icd, mt9m111->context);
848 if (!ret)
849 ret = mt9m111_set_autoexposure(icd, mt9m111->autoexposure);
850 if (ret)
d7f83a51 851 dev_err(&icd->dev, "mt9m11x init failed: %d\n", ret);
506c629a 852 return ret;
77110abb
RJ		 853}
854
855static int mt9m111_release(struct soc_camera_device *icd)
856{
857 int ret;
858
859 ret = mt9m111_disable(icd);
860 if (ret < 0)
d7f83a51 861 dev_err(&icd->dev, "mt9m11x release failed: %d\n", ret);
77110abb 862
506c629a 863 return ret;
77110abb
RJ		 864}
865
866/*
867 * Interface active, can use i2c. If it fails, it can indeed mean, that
868 * this wasn't our capture interface, so, we wait for the right one
869 */
870static int mt9m111_video_probe(struct soc_camera_device *icd)
871{
872 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
873 s32 data;
874 int ret;
875
876 /*
877 * We must have a parent by now. And it cannot be a wrong one.
878 * So this entire test is completely redundant.
879 */
880 if (!icd->dev.parent ||
881 to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
882 return -ENODEV;
883
884 ret = mt9m111_enable(icd);
885 if (ret)
886 goto ei2c;
887 ret = mt9m111_reset(icd);
888 if (ret)
889 goto ei2c;
890
891 data = reg_read(CHIP_VERSION);
892
893 switch (data) {
d7f83a51 894 case 0x143a: /* MT9M111 */
77110abb 895 mt9m111->model = V4L2_IDENT_MT9M111;
d7f83a51
MR		 896 break;
897 case 0x148c: /* MT9M112 */
898 mt9m111->model = V4L2_IDENT_MT9M112;
77110abb
RJ		 899 break;
900 default:
901 ret = -ENODEV;
902 dev_err(&icd->dev,
d7f83a51 903 "No MT9M11x chip detected, register read %x\n", data);
77110abb
RJ		 904 goto ei2c;
905 }
906
d7f83a51
MR		 907 icd->formats = mt9m111_colour_formats;
908 icd->num_formats = ARRAY_SIZE(mt9m111_colour_formats);
909
910 dev_info(&icd->dev, "Detected a MT9M11x chip ID %x\n", data);
77110abb
RJ		 911
912 ret = soc_camera_video_start(icd);
913 if (ret)
914 goto eisis;
915
916 mt9m111->autoexposure = 1;
39bf372f 917 mt9m111->autowhitebalance = 1;
77110abb
RJ		 918
919 mt9m111->swap_rgb_even_odd = 1;
920 mt9m111->swap_rgb_red_blue = 1;
921
922 return 0;
923eisis:
924ei2c:
925 return ret;
926}
927
928static void mt9m111_video_remove(struct soc_camera_device *icd)
929{
930 struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
931
932 dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m111->client->addr,
933 mt9m111->icd.dev.parent, mt9m111->icd.vdev);
934 soc_camera_video_stop(&mt9m111->icd);
935}
936
937static int mt9m111_probe(struct i2c_client *client,
938 const struct i2c_device_id *did)
939{
940 struct mt9m111 *mt9m111;
941 struct soc_camera_device *icd;
942 struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
943 struct soc_camera_link *icl = client->dev.platform_data;
944 int ret;
945
946 if (!icl) {
d7f83a51 947 dev_err(&client->dev, "MT9M11x driver needs platform data\n");
77110abb
RJ		 948 return -EINVAL;
949 }
950
951 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
952 dev_warn(&adapter->dev,
953 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
954 return -EIO;
955 }
956
957 mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL);
958 if (!mt9m111)
959 return -ENOMEM;
960
961 mt9m111->client = client;
962 i2c_set_clientdata(client, mt9m111);
963
964 /* Second stage probe - when a capture adapter is there */
965 icd = &mt9m111->icd;
966 icd->ops = &mt9m111_ops;
967 icd->control = &client->dev;
968 icd->x_min = MT9M111_MIN_DARK_COLS;
969 icd->y_min = MT9M111_MIN_DARK_ROWS;
970 icd->x_current = icd->x_min;
971 icd->y_current = icd->y_min;
972 icd->width_min = MT9M111_MIN_DARK_ROWS;
973 icd->width_max = MT9M111_MAX_WIDTH;
974 icd->height_min = MT9M111_MIN_DARK_COLS;
975 icd->height_max = MT9M111_MAX_HEIGHT;
976 icd->y_skip_top = 0;
977 icd->iface = icl->bus_id;
978
979 ret = soc_camera_device_register(icd);
980 if (ret)
981 goto eisdr;
982 return 0;
983
984eisdr:
985 kfree(mt9m111);
986 return ret;
987}
988
989static int mt9m111_remove(struct i2c_client *client)
990{
991 struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
992 soc_camera_device_unregister(&mt9m111->icd);
993 kfree(mt9m111);
994
995 return 0;
996}
997
998static const struct i2c_device_id mt9m111_id[] = {
999 { "mt9m111", 0 },
1000 { }
1001};
1002MODULE_DEVICE_TABLE(i2c, mt9m111_id);
1003
1004static struct i2c_driver mt9m111_i2c_driver = {
1005 .driver = {
1006 .name = "mt9m111",
1007 },
1008 .probe = mt9m111_probe,
1009 .remove = mt9m111_remove,
1010 .id_table = mt9m111_id,
1011};
1012
1013static int __init mt9m111_mod_init(void)
1014{
1015 return i2c_add_driver(&mt9m111_i2c_driver);
1016}
1017
1018static void __exit mt9m111_mod_exit(void)
1019{
1020 i2c_del_driver(&mt9m111_i2c_driver);
1021}
1022
1023module_init(mt9m111_mod_init);
1024module_exit(mt9m111_mod_exit);
1025
d7f83a51 1026MODULE_DESCRIPTION("Micron MT9M111/MT9M112 Camera driver");
77110abb
RJ		 1027MODULE_AUTHOR("Robert Jarzmik");
1028MODULE_LICENSE("GPL");
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