drivers/media/video/mt9m111.c

   1 /*
   2  * Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina
   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/soc_camera.h>
  18 #include <media/soc_mediabus.h>
  19 #include <media/v4l2-common.h>
  20 #include <media/v4l2-chip-ident.h>
  21
  22 /*
  23  * MT9M111, MT9M112 and MT9M131:
  24  * i2c address is 0x48 or 0x5d (depending on SADDR pin)
  25  * The platform has to define i2c_board_info and call i2c_register_board_info()
  26  */
  27
  28 /*
  29  * Sensor core register addresses (0x000..0x0ff)
  30  */
  31 #define MT9M111_CHIP_VERSION            0x000
  32 #define MT9M111_ROW_START               0x001
  33 #define MT9M111_COLUMN_START            0x002
  34 #define MT9M111_WINDOW_HEIGHT           0x003
  35 #define MT9M111_WINDOW_WIDTH            0x004
  36 #define MT9M111_HORIZONTAL_BLANKING_B   0x005
  37 #define MT9M111_VERTICAL_BLANKING_B     0x006
  38 #define MT9M111_HORIZONTAL_BLANKING_A   0x007
  39 #define MT9M111_VERTICAL_BLANKING_A     0x008
  40 #define MT9M111_SHUTTER_WIDTH           0x009
  41 #define MT9M111_ROW_SPEED               0x00a
  42 #define MT9M111_EXTRA_DELAY             0x00b
  43 #define MT9M111_SHUTTER_DELAY           0x00c
  44 #define MT9M111_RESET                   0x00d
  45 #define MT9M111_READ_MODE_B             0x020
  46 #define MT9M111_READ_MODE_A             0x021
  47 #define MT9M111_FLASH_CONTROL           0x023
  48 #define MT9M111_GREEN1_GAIN             0x02b
  49 #define MT9M111_BLUE_GAIN               0x02c
  50 #define MT9M111_RED_GAIN                0x02d
  51 #define MT9M111_GREEN2_GAIN             0x02e
  52 #define MT9M111_GLOBAL_GAIN             0x02f
  53 #define MT9M111_CONTEXT_CONTROL         0x0c8
  54 #define MT9M111_PAGE_MAP                0x0f0
  55 #define MT9M111_BYTE_WISE_ADDR          0x0f1
  56
  57 #define MT9M111_RESET_SYNC_CHANGES      (1 << 15)
  58 #define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
  59 #define MT9M111_RESET_SHOW_BAD_FRAMES   (1 << 8)
  60 #define MT9M111_RESET_RESET_SOC         (1 << 5)
  61 #define MT9M111_RESET_OUTPUT_DISABLE    (1 << 4)
  62 #define MT9M111_RESET_CHIP_ENABLE       (1 << 3)
  63 #define MT9M111_RESET_ANALOG_STANDBY    (1 << 2)
  64 #define MT9M111_RESET_RESTART_FRAME     (1 << 1)
  65 #define MT9M111_RESET_RESET_MODE        (1 << 0)
  66
  67 #define MT9M111_RM_FULL_POWER_RD        (0 << 10)
  68 #define MT9M111_RM_LOW_POWER_RD         (1 << 10)
  69 #define MT9M111_RM_COL_SKIP_4X          (1 << 5)
  70 #define MT9M111_RM_ROW_SKIP_4X          (1 << 4)
  71 #define MT9M111_RM_COL_SKIP_2X          (1 << 3)
  72 #define MT9M111_RM_ROW_SKIP_2X          (1 << 2)
  73 #define MT9M111_RMB_MIRROR_COLS         (1 << 1)
  74 #define MT9M111_RMB_MIRROR_ROWS         (1 << 0)
  75 #define MT9M111_CTXT_CTRL_RESTART       (1 << 15)
  76 #define MT9M111_CTXT_CTRL_DEFECTCOR_B   (1 << 12)
  77 #define MT9M111_CTXT_CTRL_RESIZE_B      (1 << 10)
  78 #define MT9M111_CTXT_CTRL_CTRL2_B       (1 << 9)
  79 #define MT9M111_CTXT_CTRL_GAMMA_B       (1 << 8)
  80 #define MT9M111_CTXT_CTRL_XENON_EN      (1 << 7)
  81 #define MT9M111_CTXT_CTRL_READ_MODE_B   (1 << 3)
  82 #define MT9M111_CTXT_CTRL_LED_FLASH_EN  (1 << 2)
  83 #define MT9M111_CTXT_CTRL_VBLANK_SEL_B  (1 << 1)
  84 #define MT9M111_CTXT_CTRL_HBLANK_SEL_B  (1 << 0)
  85
  86 /*
  87  * Colorpipe register addresses (0x100..0x1ff)
  88  */
  89 #define MT9M111_OPER_MODE_CTRL          0x106
  90 #define MT9M111_OUTPUT_FORMAT_CTRL      0x108
  91 #define MT9M111_REDUCER_XZOOM_B         0x1a0
  92 #define MT9M111_REDUCER_XSIZE_B         0x1a1
  93 #define MT9M111_REDUCER_YZOOM_B         0x1a3
  94 #define MT9M111_REDUCER_YSIZE_B         0x1a4
  95 #define MT9M111_REDUCER_XZOOM_A         0x1a6
  96 #define MT9M111_REDUCER_XSIZE_A         0x1a7
  97 #define MT9M111_REDUCER_YZOOM_A         0x1a9
  98 #define MT9M111_REDUCER_YSIZE_A         0x1aa
  99
 100 #define MT9M111_OUTPUT_FORMAT_CTRL2_A   0x13a
 101 #define MT9M111_OUTPUT_FORMAT_CTRL2_B   0x19b
 102
 103 #define MT9M111_OPMODE_AUTOEXPO_EN      (1 << 14)
 104 #define MT9M111_OPMODE_AUTOWHITEBAL_EN  (1 << 1)
 105 #define MT9M111_OUTFMT_FLIP_BAYER_COL   (1 << 9)
 106 #define MT9M111_OUTFMT_FLIP_BAYER_ROW   (1 << 8)
 107 #define MT9M111_OUTFMT_PROCESSED_BAYER  (1 << 14)
 108 #define MT9M111_OUTFMT_BYPASS_IFP       (1 << 10)
 109 #define MT9M111_OUTFMT_INV_PIX_CLOCK    (1 << 9)
 110 #define MT9M111_OUTFMT_RGB              (1 << 8)
 111 #define MT9M111_OUTFMT_RGB565           (0 << 6)
 112 #define MT9M111_OUTFMT_RGB555           (1 << 6)
 113 #define MT9M111_OUTFMT_RGB444x          (2 << 6)
 114 #define MT9M111_OUTFMT_RGBx444          (3 << 6)
 115 #define MT9M111_OUTFMT_TST_RAMP_OFF     (0 << 4)
 116 #define MT9M111_OUTFMT_TST_RAMP_COL     (1 << 4)
 117 #define MT9M111_OUTFMT_TST_RAMP_ROW     (2 << 4)
 118 #define MT9M111_OUTFMT_TST_RAMP_FRAME   (3 << 4)
 119 #define MT9M111_OUTFMT_SHIFT_3_UP       (1 << 3)
 120 #define MT9M111_OUTFMT_AVG_CHROMA       (1 << 2)
 121 #define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN  (1 << 1)
 122 #define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0)
 123
 124 /*
 125  * Camera control register addresses (0x200..0x2ff not implemented)
 126  */
 127
 128 #define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
 129 #define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
 130 #define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
 131 #define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
 132 #define reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \
 133                 (val), (mask))
 134
 135 #define MT9M111_MIN_DARK_ROWS   8
 136 #define MT9M111_MIN_DARK_COLS   26
 137 #define MT9M111_MAX_HEIGHT      1024
 138 #define MT9M111_MAX_WIDTH       1280
 139
 140 /* MT9M111 has only one fixed colorspace per pixelcode */
 141 struct mt9m111_datafmt {
 142         enum v4l2_mbus_pixelcode        code;
 143         enum v4l2_colorspace            colorspace;
 144 };
 145
 146 /* Find a data format by a pixel code in an array */
 147 static const struct mt9m111_datafmt *mt9m111_find_datafmt(
 148         enum v4l2_mbus_pixelcode code, const struct mt9m111_datafmt *fmt,
 149         int n)
 150 {
 151         int i;
 152         for (i = 0; i < n; i++)
 153                 if (fmt[i].code == code)
 154                         return fmt + i;
 155
 156         return NULL;
 157 }
 158
 159 static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
 160         {V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG},
 161         {V4L2_MBUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG},
 162         {V4L2_MBUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG},
 163         {V4L2_MBUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_JPEG},
 164         {V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
 165         {V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB},
 166         {V4L2_MBUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
 167         {V4L2_MBUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB},
 168         {V4L2_MBUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB},
 169         {V4L2_MBUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB},
 170         {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
 171         {V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
 172 };
 173
 174 enum mt9m111_context {
 175         HIGHPOWER = 0,
 176         LOWPOWER,
 177 };
 178
 179 struct mt9m111 {
 180         struct v4l2_subdev subdev;
 181         int model;      /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code
 182                          * from v4l2-chip-ident.h */
 183         enum mt9m111_context context;
 184         struct v4l2_rect rect;
 185         struct mutex power_lock; /* lock to protect power_count */
 186         int power_count;
 187         const struct mt9m111_datafmt *fmt;
 188         int lastpage;   /* PageMap cache value */
 189         unsigned int gain;
 190         unsigned char autoexposure;
 191         unsigned char datawidth;
 192         unsigned int powered:1;
 193         unsigned int hflip:1;
 194         unsigned int vflip:1;
 195         unsigned int autowhitebalance:1;
 196 };
 197
 198 static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
 199 {
 200         return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
 201 }
 202
 203 static int reg_page_map_set(struct i2c_client *client, const u16 reg)
 204 {
 205         int ret;
 206         u16 page;
 207         struct mt9m111 *mt9m111 = to_mt9m111(client);
 208
 209         page = (reg >> 8);
 210         if (page == mt9m111->lastpage)
 211                 return 0;
 212         if (page > 2)
 213                 return -EINVAL;
 214
 215         ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
 216         if (!ret)
 217                 mt9m111->lastpage = page;
 218         return ret;
 219 }
 220
 221 static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
 222 {
 223         int ret;
 224
 225         ret = reg_page_map_set(client, reg);
 226         if (!ret)
 227                 ret = swab16(i2c_smbus_read_word_data(client, reg & 0xff));
 228
 229         dev_dbg(&client->dev, "read  reg.%03x -> %04x\n", reg, ret);
 230         return ret;
 231 }
 232
 233 static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
 234                              const u16 data)
 235 {
 236         int ret;
 237
 238         ret = reg_page_map_set(client, reg);
 239         if (!ret)
 240                 ret = i2c_smbus_write_word_data(client, reg & 0xff,
 241                                                 swab16(data));
 242         dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
 243         return ret;
 244 }
 245
 246 static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
 247                            const u16 data)
 248 {
 249         int ret;
 250
 251         ret = mt9m111_reg_read(client, reg);
 252         if (ret >= 0)
 253                 ret = mt9m111_reg_write(client, reg, ret | data);
 254         return ret;
 255 }
 256
 257 static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
 258                              const u16 data)
 259 {
 260         int ret;
 261
 262         ret = mt9m111_reg_read(client, reg);
 263         if (ret >= 0)
 264                 ret = mt9m111_reg_write(client, reg, ret & ~data);
 265         return ret;
 266 }
 267
 268 static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg,
 269                             const u16 data, const u16 mask)
 270 {
 271         int ret;
 272
 273         ret = mt9m111_reg_read(client, reg);
 274         if (ret >= 0)
 275                 ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data);
 276         return ret;
 277 }
 278
 279 static int mt9m111_set_context(struct mt9m111 *mt9m111,
 280                                enum mt9m111_context ctxt)
 281 {
 282         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 283         int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B
 284                 | MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B
 285                 | MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B
 286                 | MT9M111_CTXT_CTRL_VBLANK_SEL_B
 287                 | MT9M111_CTXT_CTRL_HBLANK_SEL_B;
 288         int valA = MT9M111_CTXT_CTRL_RESTART;
 289
 290         if (ctxt == HIGHPOWER)
 291                 return reg_write(CONTEXT_CONTROL, valB);
 292         else
 293                 return reg_write(CONTEXT_CONTROL, valA);
 294 }
 295
 296 static int mt9m111_setup_rect(struct mt9m111 *mt9m111,
 297                               struct v4l2_rect *rect)
 298 {
 299         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 300         int ret, is_raw_format;
 301         int width = rect->width;
 302         int height = rect->height;
 303
 304         if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
 305             mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE)
 306                 is_raw_format = 1;
 307         else
 308                 is_raw_format = 0;
 309
 310         ret = reg_write(COLUMN_START, rect->left);
 311         if (!ret)
 312                 ret = reg_write(ROW_START, rect->top);
 313
 314         if (is_raw_format) {
 315                 if (!ret)
 316                         ret = reg_write(WINDOW_WIDTH, width);
 317                 if (!ret)
 318                         ret = reg_write(WINDOW_HEIGHT, height);
 319         } else {
 320                 if (!ret)
 321                         ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH);
 322                 if (!ret)
 323                         ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT);
 324                 if (!ret)
 325                         ret = reg_write(REDUCER_XSIZE_B, width);
 326                 if (!ret)
 327                         ret = reg_write(REDUCER_YSIZE_B, height);
 328                 if (!ret)
 329                         ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH);
 330                 if (!ret)
 331                         ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT);
 332                 if (!ret)
 333                         ret = reg_write(REDUCER_XSIZE_A, width);
 334                 if (!ret)
 335                         ret = reg_write(REDUCER_YSIZE_A, height);
 336         }
 337
 338         return ret;
 339 }
 340
 341 static int mt9m111_enable(struct mt9m111 *mt9m111)
 342 {
 343         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 344         int ret;
 345
 346         ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE);
 347         if (!ret)
 348                 mt9m111->powered = 1;
 349         return ret;
 350 }
 351
 352 static int mt9m111_reset(struct mt9m111 *mt9m111)
 353 {
 354         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 355         int ret;
 356
 357         ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
 358         if (!ret)
 359                 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
 360         if (!ret)
 361                 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
 362                                 | MT9M111_RESET_RESET_SOC);
 363
 364         return ret;
 365 }
 366
 367 static int mt9m111_make_rect(struct mt9m111 *mt9m111,
 368                              struct v4l2_rect *rect)
 369 {
 370         if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
 371             mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
 372                 /* Bayer format - even size lengths */
 373                 rect->width     = ALIGN(rect->width, 2);
 374                 rect->height    = ALIGN(rect->height, 2);
 375                 /* Let the user play with the starting pixel */
 376         }
 377
 378         /* FIXME: the datasheet doesn't specify minimum sizes */
 379         soc_camera_limit_side(&rect->left, &rect->width,
 380                      MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH);
 381
 382         soc_camera_limit_side(&rect->top, &rect->height,
 383                      MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT);
 384
 385         return mt9m111_setup_rect(mt9m111, rect);
 386 }
 387
 388 static int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 389 {
 390         struct v4l2_rect rect = a->c;
 391         struct i2c_client *client = v4l2_get_subdevdata(sd);
 392         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 393         int ret;
 394
 395         dev_dbg(&client->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
 396                 __func__, rect.left, rect.top, rect.width, rect.height);
 397
 398         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 399                 return -EINVAL;
 400
 401         ret = mt9m111_make_rect(mt9m111, &rect);
 402         if (!ret)
 403                 mt9m111->rect = rect;
 404         return ret;
 405 }
 406
 407 static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 408 {
 409         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 410
 411         a->c    = mt9m111->rect;
 412         a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 413
 414         return 0;
 415 }
 416
 417 static int mt9m111_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
 418 {
 419         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 420                 return -EINVAL;
 421
 422         a->bounds.left                  = MT9M111_MIN_DARK_COLS;
 423         a->bounds.top                   = MT9M111_MIN_DARK_ROWS;
 424         a->bounds.width                 = MT9M111_MAX_WIDTH;
 425         a->bounds.height                = MT9M111_MAX_HEIGHT;
 426         a->defrect                      = a->bounds;
 427         a->pixelaspect.numerator        = 1;
 428         a->pixelaspect.denominator      = 1;
 429
 430         return 0;
 431 }
 432
 433 static int mt9m111_g_fmt(struct v4l2_subdev *sd,
 434                          struct v4l2_mbus_framefmt *mf)
 435 {
 436         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 437
 438         mf->width       = mt9m111->rect.width;
 439         mf->height      = mt9m111->rect.height;
 440         mf->code        = mt9m111->fmt->code;
 441         mf->colorspace  = mt9m111->fmt->colorspace;
 442         mf->field       = V4L2_FIELD_NONE;
 443
 444         return 0;
 445 }
 446
 447 static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
 448                               enum v4l2_mbus_pixelcode code)
 449 {
 450         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 451         u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
 452                 MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB |
 453                 MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 |
 454                 MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 |
 455                 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 456                 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 457         int ret;
 458
 459         switch (code) {
 460         case V4L2_MBUS_FMT_SBGGR8_1X8:
 461                 data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
 462                         MT9M111_OUTFMT_RGB;
 463                 break;
 464         case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE:
 465                 data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB;
 466                 break;
 467         case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE:
 468                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 |
 469                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 470                 break;
 471         case V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE:
 472                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
 473                 break;
 474         case V4L2_MBUS_FMT_RGB565_2X8_LE:
 475                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 476                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 477                 break;
 478         case V4L2_MBUS_FMT_RGB565_2X8_BE:
 479                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
 480                 break;
 481         case V4L2_MBUS_FMT_BGR565_2X8_BE:
 482                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 483                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 484                 break;
 485         case V4L2_MBUS_FMT_BGR565_2X8_LE:
 486                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 487                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 488                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 489                 break;
 490         case V4L2_MBUS_FMT_UYVY8_2X8:
 491                 data_outfmt2 = 0;
 492                 break;
 493         case V4L2_MBUS_FMT_VYUY8_2X8:
 494                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 495                 break;
 496         case V4L2_MBUS_FMT_YUYV8_2X8:
 497                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 498                 break;
 499         case V4L2_MBUS_FMT_YVYU8_2X8:
 500                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 501                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 502                 break;
 503         default:
 504                 dev_err(&client->dev, "Pixel format not handled: %x\n", code);
 505                 return -EINVAL;
 506         }
 507
 508         ret = reg_mask(OUTPUT_FORMAT_CTRL2_A, data_outfmt2,
 509                        mask_outfmt2);
 510         if (!ret)
 511                 ret = reg_mask(OUTPUT_FORMAT_CTRL2_B, data_outfmt2,
 512                                mask_outfmt2);
 513
 514         return ret;
 515 }
 516
 517 static int mt9m111_s_fmt(struct v4l2_subdev *sd,
 518                          struct v4l2_mbus_framefmt *mf)
 519 {
 520         struct i2c_client *client = v4l2_get_subdevdata(sd);
 521         const struct mt9m111_datafmt *fmt;
 522         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 523         struct v4l2_rect rect = {
 524                 .left   = mt9m111->rect.left,
 525                 .top    = mt9m111->rect.top,
 526                 .width  = mf->width,
 527                 .height = mf->height,
 528         };
 529         int ret;
 530
 531         fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts,
 532                                    ARRAY_SIZE(mt9m111_colour_fmts));
 533         if (!fmt)
 534                 return -EINVAL;
 535
 536         dev_dbg(&client->dev,
 537                 "%s code=%x left=%d, top=%d, width=%d, height=%d\n", __func__,
 538                 mf->code, rect.left, rect.top, rect.width, rect.height);
 539
 540         ret = mt9m111_make_rect(mt9m111, &rect);
 541         if (!ret)
 542                 ret = mt9m111_set_pixfmt(mt9m111, mf->code);
 543         if (!ret) {
 544                 mt9m111->rect   = rect;
 545                 mt9m111->fmt    = fmt;
 546                 mf->colorspace  = fmt->colorspace;
 547         }
 548
 549         return ret;
 550 }
 551
 552 static int mt9m111_try_fmt(struct v4l2_subdev *sd,
 553                            struct v4l2_mbus_framefmt *mf)
 554 {
 555         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 556         const struct mt9m111_datafmt *fmt;
 557         bool bayer = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
 558                 mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE;
 559
 560         fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts,
 561                                    ARRAY_SIZE(mt9m111_colour_fmts));
 562         if (!fmt) {
 563                 fmt = mt9m111->fmt;
 564                 mf->code = fmt->code;
 565         }
 566
 567         /*
 568          * With Bayer format enforce even side lengths, but let the user play
 569          * with the starting pixel
 570          */
 571
 572         if (mf->height > MT9M111_MAX_HEIGHT)
 573                 mf->height = MT9M111_MAX_HEIGHT;
 574         else if (mf->height < 2)
 575                 mf->height = 2;
 576         else if (bayer)
 577                 mf->height = ALIGN(mf->height, 2);
 578
 579         if (mf->width > MT9M111_MAX_WIDTH)
 580                 mf->width = MT9M111_MAX_WIDTH;
 581         else if (mf->width < 2)
 582                 mf->width = 2;
 583         else if (bayer)
 584                 mf->width = ALIGN(mf->width, 2);
 585
 586         mf->colorspace = fmt->colorspace;
 587
 588         return 0;
 589 }
 590
 591 static int mt9m111_g_chip_ident(struct v4l2_subdev *sd,
 592                                 struct v4l2_dbg_chip_ident *id)
 593 {
 594         struct i2c_client *client = v4l2_get_subdevdata(sd);
 595         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 596
 597         if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
 598                 return -EINVAL;
 599
 600         if (id->match.addr != client->addr)
 601                 return -ENODEV;
 602
 603         id->ident       = mt9m111->model;
 604         id->revision    = 0;
 605
 606         return 0;
 607 }
 608
 609 #ifdef CONFIG_VIDEO_ADV_DEBUG
 610 static int mt9m111_g_register(struct v4l2_subdev *sd,
 611                               struct v4l2_dbg_register *reg)
 612 {
 613         struct i2c_client *client = v4l2_get_subdevdata(sd);
 614         int val;
 615
 616         if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
 617                 return -EINVAL;
 618         if (reg->match.addr != client->addr)
 619                 return -ENODEV;
 620
 621         val = mt9m111_reg_read(client, reg->reg);
 622         reg->size = 2;
 623         reg->val = (u64)val;
 624
 625         if (reg->val > 0xffff)
 626                 return -EIO;
 627
 628         return 0;
 629 }
 630
 631 static int mt9m111_s_register(struct v4l2_subdev *sd,
 632                               struct v4l2_dbg_register *reg)
 633 {
 634         struct i2c_client *client = v4l2_get_subdevdata(sd);
 635
 636         if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
 637                 return -EINVAL;
 638
 639         if (reg->match.addr != client->addr)
 640                 return -ENODEV;
 641
 642         if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
 643                 return -EIO;
 644
 645         return 0;
 646 }
 647 #endif
 648
 649 static const struct v4l2_queryctrl mt9m111_controls[] = {
 650         {
 651                 .id             = V4L2_CID_VFLIP,
 652                 .type           = V4L2_CTRL_TYPE_BOOLEAN,
 653                 .name           = "Flip Verticaly",
 654                 .minimum        = 0,
 655                 .maximum        = 1,
 656                 .step           = 1,
 657                 .default_value  = 0,
 658         }, {
 659                 .id             = V4L2_CID_HFLIP,
 660                 .type           = V4L2_CTRL_TYPE_BOOLEAN,
 661                 .name           = "Flip Horizontaly",
 662                 .minimum        = 0,
 663                 .maximum        = 1,
 664                 .step           = 1,
 665                 .default_value  = 0,
 666         }, {    /* gain = 1/32*val (=>gain=1 if val==32) */
 667                 .id             = V4L2_CID_GAIN,
 668                 .type           = V4L2_CTRL_TYPE_INTEGER,
 669                 .name           = "Gain",
 670                 .minimum        = 0,
 671                 .maximum        = 63 * 2 * 2,
 672                 .step           = 1,
 673                 .default_value  = 32,
 674                 .flags          = V4L2_CTRL_FLAG_SLIDER,
 675         }, {
 676                 .id             = V4L2_CID_EXPOSURE_AUTO,
 677                 .type           = V4L2_CTRL_TYPE_BOOLEAN,
 678                 .name           = "Auto Exposure",
 679                 .minimum        = 0,
 680                 .maximum        = 1,
 681                 .step           = 1,
 682                 .default_value  = 1,
 683         }
 684 };
 685
 686 static struct soc_camera_ops mt9m111_ops = {
 687         .controls               = mt9m111_controls,
 688         .num_controls           = ARRAY_SIZE(mt9m111_controls),
 689 };
 690
 691 static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
 692 {
 693         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 694         int ret;
 695
 696         if (mt9m111->context == HIGHPOWER) {
 697                 if (flip)
 698                         ret = reg_set(READ_MODE_B, mask);
 699                 else
 700                         ret = reg_clear(READ_MODE_B, mask);
 701         } else {
 702                 if (flip)
 703                         ret = reg_set(READ_MODE_A, mask);
 704                 else
 705                         ret = reg_clear(READ_MODE_A, mask);
 706         }
 707
 708         return ret;
 709 }
 710
 711 static int mt9m111_get_global_gain(struct mt9m111 *mt9m111)
 712 {
 713         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 714         int data;
 715
 716         data = reg_read(GLOBAL_GAIN);
 717         if (data >= 0)
 718                 return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
 719                         (1 << ((data >> 9) & 1));
 720         return data;
 721 }
 722
 723 static int mt9m111_set_global_gain(struct mt9m111 *mt9m111, int gain)
 724 {
 725         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 726         u16 val;
 727
 728         if (gain > 63 * 2 * 2)
 729                 return -EINVAL;
 730
 731         mt9m111->gain = gain;
 732         if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
 733                 val = (1 << 10) | (1 << 9) | (gain / 4);
 734         else if ((gain >= 64) && (gain < 64 * 2))
 735                 val = (1 << 9) | (gain / 2);
 736         else
 737                 val = gain;
 738
 739         return reg_write(GLOBAL_GAIN, val);
 740 }
 741
 742 static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int on)
 743 {
 744         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 745         int ret;
 746
 747         if (on)
 748                 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
 749         else
 750                 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
 751
 752         if (!ret)
 753                 mt9m111->autoexposure = on;
 754
 755         return ret;
 756 }
 757
 758 static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
 759 {
 760         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 761         int ret;
 762
 763         if (on)
 764                 ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
 765         else
 766                 ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
 767
 768         if (!ret)
 769                 mt9m111->autowhitebalance = on;
 770
 771         return ret;
 772 }
 773
 774 static int mt9m111_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 775 {
 776         struct i2c_client *client = v4l2_get_subdevdata(sd);
 777         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 778         int data;
 779
 780         switch (ctrl->id) {
 781         case V4L2_CID_VFLIP:
 782                 if (mt9m111->context == HIGHPOWER)
 783                         data = reg_read(READ_MODE_B);
 784                 else
 785                         data = reg_read(READ_MODE_A);
 786
 787                 if (data < 0)
 788                         return -EIO;
 789                 ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
 790                 break;
 791         case V4L2_CID_HFLIP:
 792                 if (mt9m111->context == HIGHPOWER)
 793                         data = reg_read(READ_MODE_B);
 794                 else
 795                         data = reg_read(READ_MODE_A);
 796
 797                 if (data < 0)
 798                         return -EIO;
 799                 ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
 800                 break;
 801         case V4L2_CID_GAIN:
 802                 data = mt9m111_get_global_gain(mt9m111);
 803                 if (data < 0)
 804                         return data;
 805                 ctrl->value = data;
 806                 break;
 807         case V4L2_CID_EXPOSURE_AUTO:
 808                 ctrl->value = mt9m111->autoexposure;
 809                 break;
 810         case V4L2_CID_AUTO_WHITE_BALANCE:
 811                 ctrl->value = mt9m111->autowhitebalance;
 812                 break;
 813         }
 814         return 0;
 815 }
 816
 817 static int mt9m111_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 818 {
 819         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 820         const struct v4l2_queryctrl *qctrl;
 821         int ret;
 822
 823         qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
 824         if (!qctrl)
 825                 return -EINVAL;
 826
 827         switch (ctrl->id) {
 828         case V4L2_CID_VFLIP:
 829                 mt9m111->vflip = ctrl->value;
 830                 ret = mt9m111_set_flip(mt9m111, ctrl->value,
 831                                         MT9M111_RMB_MIRROR_ROWS);
 832                 break;
 833         case V4L2_CID_HFLIP:
 834                 mt9m111->hflip = ctrl->value;
 835                 ret = mt9m111_set_flip(mt9m111, ctrl->value,
 836                                         MT9M111_RMB_MIRROR_COLS);
 837                 break;
 838         case V4L2_CID_GAIN:
 839                 ret = mt9m111_set_global_gain(mt9m111, ctrl->value);
 840                 break;
 841         case V4L2_CID_EXPOSURE_AUTO:
 842                 ret =  mt9m111_set_autoexposure(mt9m111, ctrl->value);
 843                 break;
 844         case V4L2_CID_AUTO_WHITE_BALANCE:
 845                 ret =  mt9m111_set_autowhitebalance(mt9m111, ctrl->value);
 846                 break;
 847         default:
 848                 ret = -EINVAL;
 849         }
 850
 851         return ret;
 852 }
 853
 854 static int mt9m111_suspend(struct mt9m111 *mt9m111)
 855 {
 856         mt9m111->gain = mt9m111_get_global_gain(mt9m111);
 857
 858         return 0;
 859 }
 860
 861 static void mt9m111_restore_state(struct mt9m111 *mt9m111)
 862 {
 863         mt9m111_set_context(mt9m111, mt9m111->context);
 864         mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
 865         mt9m111_setup_rect(mt9m111, &mt9m111->rect);
 866         mt9m111_set_flip(mt9m111, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
 867         mt9m111_set_flip(mt9m111, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
 868         mt9m111_set_global_gain(mt9m111, mt9m111->gain);
 869         mt9m111_set_autoexposure(mt9m111, mt9m111->autoexposure);
 870         mt9m111_set_autowhitebalance(mt9m111, mt9m111->autowhitebalance);
 871 }
 872
 873 static int mt9m111_resume(struct mt9m111 *mt9m111)
 874 {
 875         int ret = 0;
 876
 877         if (mt9m111->powered) {
 878                 ret = mt9m111_enable(mt9m111);
 879                 if (!ret)
 880                         ret = mt9m111_reset(mt9m111);
 881                 if (!ret)
 882                         mt9m111_restore_state(mt9m111);
 883         }
 884         return ret;
 885 }
 886
 887 static int mt9m111_init(struct mt9m111 *mt9m111)
 888 {
 889         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 890         int ret;
 891
 892         mt9m111->context = HIGHPOWER;
 893         ret = mt9m111_enable(mt9m111);
 894         if (!ret)
 895                 ret = mt9m111_reset(mt9m111);
 896         if (!ret)
 897                 ret = mt9m111_set_context(mt9m111, mt9m111->context);
 898         if (!ret)
 899                 ret = mt9m111_set_autoexposure(mt9m111, mt9m111->autoexposure);
 900         if (ret)
 901                 dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
 902         return ret;
 903 }
 904
 905 /*
 906  * Interface active, can use i2c. If it fails, it can indeed mean, that
 907  * this wasn't our capture interface, so, we wait for the right one
 908  */
 909 static int mt9m111_video_probe(struct soc_camera_device *icd,
 910                                struct i2c_client *client)
 911 {
 912         struct mt9m111 *mt9m111 = to_mt9m111(client);
 913         s32 data;
 914         int ret;
 915
 916         /* We must have a parent by now. And it cannot be a wrong one. */
 917         BUG_ON(!icd->parent ||
 918                to_soc_camera_host(icd->parent)->nr != icd->iface);
 919
 920         mt9m111->lastpage = -1;
 921
 922         mt9m111->autoexposure = 1;
 923         mt9m111->autowhitebalance = 1;
 924
 925         data = reg_read(CHIP_VERSION);
 926
 927         switch (data) {
 928         case 0x143a: /* MT9M111 or MT9M131 */
 929                 mt9m111->model = V4L2_IDENT_MT9M111;
 930                 dev_info(&client->dev,
 931                         "Detected a MT9M111/MT9M131 chip ID %x\n", data);
 932                 break;
 933         case 0x148c: /* MT9M112 */
 934                 mt9m111->model = V4L2_IDENT_MT9M112;
 935                 dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
 936                 break;
 937         default:
 938                 ret = -ENODEV;
 939                 dev_err(&client->dev,
 940                         "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
 941                         data);
 942                 goto ei2c;
 943         }
 944
 945         ret = mt9m111_init(mt9m111);
 946
 947 ei2c:
 948         return ret;
 949 }
 950
 951 static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
 952 {
 953         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 954         struct i2c_client *client = v4l2_get_subdevdata(sd);
 955         int ret = 0;
 956
 957         mutex_lock(&mt9m111->power_lock);
 958
 959         /*
 960          * If the power count is modified from 0 to != 0 or from != 0 to 0,
 961          * update the power state.
 962          */
 963         if (mt9m111->power_count == !on) {
 964                 if (on) {
 965                         ret = mt9m111_resume(mt9m111);
 966                         if (ret) {
 967                                 dev_err(&client->dev,
 968                                         "Failed to resume the sensor: %d\n", ret);
 969                                 goto out;
 970                         }
 971                 } else {
 972                         mt9m111_suspend(mt9m111);
 973                 }
 974         }
 975
 976         /* Update the power count. */
 977         mt9m111->power_count += on ? 1 : -1;
 978         WARN_ON(mt9m111->power_count < 0);
 979
 980 out:
 981         mutex_unlock(&mt9m111->power_lock);
 982         return ret;
 983 }
 984
 985 static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
 986         .g_ctrl         = mt9m111_g_ctrl,
 987         .s_ctrl         = mt9m111_s_ctrl,
 988         .g_chip_ident   = mt9m111_g_chip_ident,
 989         .s_power        = mt9m111_s_power,
 990 #ifdef CONFIG_VIDEO_ADV_DEBUG
 991         .g_register     = mt9m111_g_register,
 992         .s_register     = mt9m111_s_register,
 993 #endif
 994 };
 995
 996 static int mt9m111_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
 997                             enum v4l2_mbus_pixelcode *code)
 998 {
 999         if (index >= ARRAY_SIZE(mt9m111_colour_fmts))
1000                 return -EINVAL;
1001
1002         *code = mt9m111_colour_fmts[index].code;
1003         return 0;
1004 }
1005
1006 static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
1007                                 struct v4l2_mbus_config *cfg)
1008 {
1009         struct i2c_client *client = v4l2_get_subdevdata(sd);
1010         struct soc_camera_device *icd = client->dev.platform_data;
1011         struct soc_camera_link *icl = to_soc_camera_link(icd);
1012
1013         cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
1014                 V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
1015                 V4L2_MBUS_DATA_ACTIVE_HIGH;
1016         cfg->type = V4L2_MBUS_PARALLEL;
1017         cfg->flags = soc_camera_apply_board_flags(icl, cfg);
1018
1019         return 0;
1020 }
1021
1022 static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
1023         .s_mbus_fmt     = mt9m111_s_fmt,
1024         .g_mbus_fmt     = mt9m111_g_fmt,
1025         .try_mbus_fmt   = mt9m111_try_fmt,
1026         .s_crop         = mt9m111_s_crop,
1027         .g_crop         = mt9m111_g_crop,
1028         .cropcap        = mt9m111_cropcap,
1029         .enum_mbus_fmt  = mt9m111_enum_fmt,
1030         .g_mbus_config  = mt9m111_g_mbus_config,
1031 };
1032
1033 static struct v4l2_subdev_ops mt9m111_subdev_ops = {
1034         .core   = &mt9m111_subdev_core_ops,
1035         .video  = &mt9m111_subdev_video_ops,
1036 };
1037
1038 static int mt9m111_probe(struct i2c_client *client,
1039                          const struct i2c_device_id *did)
1040 {
1041         struct mt9m111 *mt9m111;
1042         struct soc_camera_device *icd = client->dev.platform_data;
1043         struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
1044         struct soc_camera_link *icl;
1045         int ret;
1046
1047         if (!icd) {
1048                 dev_err(&client->dev, "mt9m111: soc-camera data missing!\n");
1049                 return -EINVAL;
1050         }
1051
1052         icl = to_soc_camera_link(icd);
1053         if (!icl) {
1054                 dev_err(&client->dev, "mt9m111: driver needs platform data\n");
1055                 return -EINVAL;
1056         }
1057
1058         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
1059                 dev_warn(&adapter->dev,
1060                          "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
1061                 return -EIO;
1062         }
1063
1064         mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL);
1065         if (!mt9m111)
1066                 return -ENOMEM;
1067
1068         v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
1069
1070         /* Second stage probe - when a capture adapter is there */
1071         icd->ops                = &mt9m111_ops;
1072
1073         mt9m111->rect.left      = MT9M111_MIN_DARK_COLS;
1074         mt9m111->rect.top       = MT9M111_MIN_DARK_ROWS;
1075         mt9m111->rect.width     = MT9M111_MAX_WIDTH;
1076         mt9m111->rect.height    = MT9M111_MAX_HEIGHT;
1077         mt9m111->fmt            = &mt9m111_colour_fmts[0];
1078
1079         ret = mt9m111_video_probe(icd, client);
1080         if (ret) {
1081                 icd->ops = NULL;
1082                 kfree(mt9m111);
1083         }
1084
1085         return ret;
1086 }
1087
1088 static int mt9m111_remove(struct i2c_client *client)
1089 {
1090         struct mt9m111 *mt9m111 = to_mt9m111(client);
1091         struct soc_camera_device *icd = client->dev.platform_data;
1092
1093         icd->ops = NULL;
1094         kfree(mt9m111);
1095
1096         return 0;
1097 }
1098
1099 static const struct i2c_device_id mt9m111_id[] = {
1100         { "mt9m111", 0 },
1101         { }
1102 };
1103 MODULE_DEVICE_TABLE(i2c, mt9m111_id);
1104
1105 static struct i2c_driver mt9m111_i2c_driver = {
1106         .driver = {
1107                 .name = "mt9m111",
1108         },
1109         .probe          = mt9m111_probe,
1110         .remove         = mt9m111_remove,
1111         .id_table       = mt9m111_id,
1112 };
1113
1114 static int __init mt9m111_mod_init(void)
1115 {
1116         return i2c_add_driver(&mt9m111_i2c_driver);
1117 }
1118
1119 static void __exit mt9m111_mod_exit(void)
1120 {
1121         i2c_del_driver(&mt9m111_i2c_driver);
1122 }
1123
1124 module_init(mt9m111_mod_init);
1125 module_exit(mt9m111_mod_exit);
1126
1127 MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
1128 MODULE_AUTHOR("Robert Jarzmik");
1129 MODULE_LICENSE("GPL");