drivers/media/i2c/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 #include <linux/v4l2-mediabus.h>
  17 #include <linux/module.h>
  18
  19 #include <media/v4l2-async.h>
  20 #include <media/v4l2-clk.h>
  21 #include <media/v4l2-common.h>
  22 #include <media/v4l2-ctrls.h>
  23 #include <media/v4l2-device.h>
  24
  25 /*
  26  * MT9M111, MT9M112 and MT9M131:
  27  * i2c address is 0x48 or 0x5d (depending on SADDR pin)
  28  * The platform has to define struct i2c_board_info objects and link to them
  29  * from struct soc_camera_host_desc
  30  */
  31
  32 /*
  33  * Sensor core register addresses (0x000..0x0ff)
  34  */
  35 #define MT9M111_CHIP_VERSION            0x000
  36 #define MT9M111_ROW_START               0x001
  37 #define MT9M111_COLUMN_START            0x002
  38 #define MT9M111_WINDOW_HEIGHT           0x003
  39 #define MT9M111_WINDOW_WIDTH            0x004
  40 #define MT9M111_HORIZONTAL_BLANKING_B   0x005
  41 #define MT9M111_VERTICAL_BLANKING_B     0x006
  42 #define MT9M111_HORIZONTAL_BLANKING_A   0x007
  43 #define MT9M111_VERTICAL_BLANKING_A     0x008
  44 #define MT9M111_SHUTTER_WIDTH           0x009
  45 #define MT9M111_ROW_SPEED               0x00a
  46 #define MT9M111_EXTRA_DELAY             0x00b
  47 #define MT9M111_SHUTTER_DELAY           0x00c
  48 #define MT9M111_RESET                   0x00d
  49 #define MT9M111_READ_MODE_B             0x020
  50 #define MT9M111_READ_MODE_A             0x021
  51 #define MT9M111_FLASH_CONTROL           0x023
  52 #define MT9M111_GREEN1_GAIN             0x02b
  53 #define MT9M111_BLUE_GAIN               0x02c
  54 #define MT9M111_RED_GAIN                0x02d
  55 #define MT9M111_GREEN2_GAIN             0x02e
  56 #define MT9M111_GLOBAL_GAIN             0x02f
  57 #define MT9M111_CONTEXT_CONTROL         0x0c8
  58 #define MT9M111_PAGE_MAP                0x0f0
  59 #define MT9M111_BYTE_WISE_ADDR          0x0f1
  60
  61 #define MT9M111_RESET_SYNC_CHANGES      (1 << 15)
  62 #define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
  63 #define MT9M111_RESET_SHOW_BAD_FRAMES   (1 << 8)
  64 #define MT9M111_RESET_RESET_SOC         (1 << 5)
  65 #define MT9M111_RESET_OUTPUT_DISABLE    (1 << 4)
  66 #define MT9M111_RESET_CHIP_ENABLE       (1 << 3)
  67 #define MT9M111_RESET_ANALOG_STANDBY    (1 << 2)
  68 #define MT9M111_RESET_RESTART_FRAME     (1 << 1)
  69 #define MT9M111_RESET_RESET_MODE        (1 << 0)
  70
  71 #define MT9M111_RM_FULL_POWER_RD        (0 << 10)
  72 #define MT9M111_RM_LOW_POWER_RD         (1 << 10)
  73 #define MT9M111_RM_COL_SKIP_4X          (1 << 5)
  74 #define MT9M111_RM_ROW_SKIP_4X          (1 << 4)
  75 #define MT9M111_RM_COL_SKIP_2X          (1 << 3)
  76 #define MT9M111_RM_ROW_SKIP_2X          (1 << 2)
  77 #define MT9M111_RMB_MIRROR_COLS         (1 << 1)
  78 #define MT9M111_RMB_MIRROR_ROWS         (1 << 0)
  79 #define MT9M111_CTXT_CTRL_RESTART       (1 << 15)
  80 #define MT9M111_CTXT_CTRL_DEFECTCOR_B   (1 << 12)
  81 #define MT9M111_CTXT_CTRL_RESIZE_B      (1 << 10)
  82 #define MT9M111_CTXT_CTRL_CTRL2_B       (1 << 9)
  83 #define MT9M111_CTXT_CTRL_GAMMA_B       (1 << 8)
  84 #define MT9M111_CTXT_CTRL_XENON_EN      (1 << 7)
  85 #define MT9M111_CTXT_CTRL_READ_MODE_B   (1 << 3)
  86 #define MT9M111_CTXT_CTRL_LED_FLASH_EN  (1 << 2)
  87 #define MT9M111_CTXT_CTRL_VBLANK_SEL_B  (1 << 1)
  88 #define MT9M111_CTXT_CTRL_HBLANK_SEL_B  (1 << 0)
  89
  90 /*
  91  * Colorpipe register addresses (0x100..0x1ff)
  92  */
  93 #define MT9M111_OPER_MODE_CTRL          0x106
  94 #define MT9M111_OUTPUT_FORMAT_CTRL      0x108
  95 #define MT9M111_REDUCER_XZOOM_B         0x1a0
  96 #define MT9M111_REDUCER_XSIZE_B         0x1a1
  97 #define MT9M111_REDUCER_YZOOM_B         0x1a3
  98 #define MT9M111_REDUCER_YSIZE_B         0x1a4
  99 #define MT9M111_REDUCER_XZOOM_A         0x1a6
 100 #define MT9M111_REDUCER_XSIZE_A         0x1a7
 101 #define MT9M111_REDUCER_YZOOM_A         0x1a9
 102 #define MT9M111_REDUCER_YSIZE_A         0x1aa
 103
 104 #define MT9M111_OUTPUT_FORMAT_CTRL2_A   0x13a
 105 #define MT9M111_OUTPUT_FORMAT_CTRL2_B   0x19b
 106
 107 #define MT9M111_OPMODE_AUTOEXPO_EN      (1 << 14)
 108 #define MT9M111_OPMODE_AUTOWHITEBAL_EN  (1 << 1)
 109 #define MT9M111_OUTFMT_FLIP_BAYER_COL   (1 << 9)
 110 #define MT9M111_OUTFMT_FLIP_BAYER_ROW   (1 << 8)
 111 #define MT9M111_OUTFMT_PROCESSED_BAYER  (1 << 14)
 112 #define MT9M111_OUTFMT_BYPASS_IFP       (1 << 10)
 113 #define MT9M111_OUTFMT_INV_PIX_CLOCK    (1 << 9)
 114 #define MT9M111_OUTFMT_RGB              (1 << 8)
 115 #define MT9M111_OUTFMT_RGB565           (0 << 6)
 116 #define MT9M111_OUTFMT_RGB555           (1 << 6)
 117 #define MT9M111_OUTFMT_RGB444x          (2 << 6)
 118 #define MT9M111_OUTFMT_RGBx444          (3 << 6)
 119 #define MT9M111_OUTFMT_TST_RAMP_OFF     (0 << 4)
 120 #define MT9M111_OUTFMT_TST_RAMP_COL     (1 << 4)
 121 #define MT9M111_OUTFMT_TST_RAMP_ROW     (2 << 4)
 122 #define MT9M111_OUTFMT_TST_RAMP_FRAME   (3 << 4)
 123 #define MT9M111_OUTFMT_SHIFT_3_UP       (1 << 3)
 124 #define MT9M111_OUTFMT_AVG_CHROMA       (1 << 2)
 125 #define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN  (1 << 1)
 126 #define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0)
 127
 128 /*
 129  * Camera control register addresses (0x200..0x2ff not implemented)
 130  */
 131
 132 #define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
 133 #define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
 134 #define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
 135 #define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
 136 #define reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \
 137                 (val), (mask))
 138
 139 #define MT9M111_MIN_DARK_ROWS   8
 140 #define MT9M111_MIN_DARK_COLS   26
 141 #define MT9M111_MAX_HEIGHT      1024
 142 #define MT9M111_MAX_WIDTH       1280
 143
 144 struct mt9m111_context {
 145         u16 read_mode;
 146         u16 blanking_h;
 147         u16 blanking_v;
 148         u16 reducer_xzoom;
 149         u16 reducer_yzoom;
 150         u16 reducer_xsize;
 151         u16 reducer_ysize;
 152         u16 output_fmt_ctrl2;
 153         u16 control;
 154 };
 155
 156 static struct mt9m111_context context_a = {
 157         .read_mode              = MT9M111_READ_MODE_A,
 158         .blanking_h             = MT9M111_HORIZONTAL_BLANKING_A,
 159         .blanking_v             = MT9M111_VERTICAL_BLANKING_A,
 160         .reducer_xzoom          = MT9M111_REDUCER_XZOOM_A,
 161         .reducer_yzoom          = MT9M111_REDUCER_YZOOM_A,
 162         .reducer_xsize          = MT9M111_REDUCER_XSIZE_A,
 163         .reducer_ysize          = MT9M111_REDUCER_YSIZE_A,
 164         .output_fmt_ctrl2       = MT9M111_OUTPUT_FORMAT_CTRL2_A,
 165         .control                = MT9M111_CTXT_CTRL_RESTART,
 166 };
 167
 168 static struct mt9m111_context context_b = {
 169         .read_mode              = MT9M111_READ_MODE_B,
 170         .blanking_h             = MT9M111_HORIZONTAL_BLANKING_B,
 171         .blanking_v             = MT9M111_VERTICAL_BLANKING_B,
 172         .reducer_xzoom          = MT9M111_REDUCER_XZOOM_B,
 173         .reducer_yzoom          = MT9M111_REDUCER_YZOOM_B,
 174         .reducer_xsize          = MT9M111_REDUCER_XSIZE_B,
 175         .reducer_ysize          = MT9M111_REDUCER_YSIZE_B,
 176         .output_fmt_ctrl2       = MT9M111_OUTPUT_FORMAT_CTRL2_B,
 177         .control                = MT9M111_CTXT_CTRL_RESTART |
 178                 MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B |
 179                 MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B |
 180                 MT9M111_CTXT_CTRL_READ_MODE_B | MT9M111_CTXT_CTRL_VBLANK_SEL_B |
 181                 MT9M111_CTXT_CTRL_HBLANK_SEL_B,
 182 };
 183
 184 /* MT9M111 has only one fixed colorspace per pixelcode */
 185 struct mt9m111_datafmt {
 186         u32     code;
 187         enum v4l2_colorspace            colorspace;
 188 };
 189
 190 static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
 191         {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_SRGB},
 192         {MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_SRGB},
 193         {MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_SRGB},
 194         {MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_SRGB},
 195         {MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
 196         {MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB},
 197         {MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
 198         {MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB},
 199         {MEDIA_BUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB},
 200         {MEDIA_BUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB},
 201         {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
 202         {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
 203 };
 204
 205 struct mt9m111 {
 206         struct v4l2_subdev subdev;
 207         struct v4l2_ctrl_handler hdl;
 208         struct v4l2_ctrl *gain;
 209         struct mt9m111_context *ctx;
 210         struct v4l2_rect rect;  /* cropping rectangle */
 211         struct v4l2_clk *clk;
 212         unsigned int width;     /* output */
 213         unsigned int height;    /* sizes */
 214         struct mutex power_lock; /* lock to protect power_count */
 215         int power_count;
 216         const struct mt9m111_datafmt *fmt;
 217         int lastpage;   /* PageMap cache value */
 218 };
 219
 220 /* Find a data format by a pixel code */
 221 static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
 222                                                 u32 code)
 223 {
 224         int i;
 225         for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++)
 226                 if (mt9m111_colour_fmts[i].code == code)
 227                         return mt9m111_colour_fmts + i;
 228
 229         return mt9m111->fmt;
 230 }
 231
 232 static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
 233 {
 234         return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
 235 }
 236
 237 static int reg_page_map_set(struct i2c_client *client, const u16 reg)
 238 {
 239         int ret;
 240         u16 page;
 241         struct mt9m111 *mt9m111 = to_mt9m111(client);
 242
 243         page = (reg >> 8);
 244         if (page == mt9m111->lastpage)
 245                 return 0;
 246         if (page > 2)
 247                 return -EINVAL;
 248
 249         ret = i2c_smbus_write_word_swapped(client, MT9M111_PAGE_MAP, page);
 250         if (!ret)
 251                 mt9m111->lastpage = page;
 252         return ret;
 253 }
 254
 255 static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
 256 {
 257         int ret;
 258
 259         ret = reg_page_map_set(client, reg);
 260         if (!ret)
 261                 ret = i2c_smbus_read_word_swapped(client, reg & 0xff);
 262
 263         dev_dbg(&client->dev, "read  reg.%03x -> %04x\n", reg, ret);
 264         return ret;
 265 }
 266
 267 static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
 268                              const u16 data)
 269 {
 270         int ret;
 271
 272         ret = reg_page_map_set(client, reg);
 273         if (!ret)
 274                 ret = i2c_smbus_write_word_swapped(client, reg & 0xff, data);
 275         dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
 276         return ret;
 277 }
 278
 279 static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
 280                            const u16 data)
 281 {
 282         int ret;
 283
 284         ret = mt9m111_reg_read(client, reg);
 285         if (ret >= 0)
 286                 ret = mt9m111_reg_write(client, reg, ret | data);
 287         return ret;
 288 }
 289
 290 static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
 291                              const u16 data)
 292 {
 293         int ret;
 294
 295         ret = mt9m111_reg_read(client, reg);
 296         if (ret >= 0)
 297                 ret = mt9m111_reg_write(client, reg, ret & ~data);
 298         return ret;
 299 }
 300
 301 static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg,
 302                             const u16 data, const u16 mask)
 303 {
 304         int ret;
 305
 306         ret = mt9m111_reg_read(client, reg);
 307         if (ret >= 0)
 308                 ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data);
 309         return ret;
 310 }
 311
 312 static int mt9m111_set_context(struct mt9m111 *mt9m111,
 313                                struct mt9m111_context *ctx)
 314 {
 315         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 316         return reg_write(CONTEXT_CONTROL, ctx->control);
 317 }
 318
 319 static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111,
 320                         struct mt9m111_context *ctx, struct v4l2_rect *rect,
 321                         unsigned int width, unsigned int height)
 322 {
 323         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 324         int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width);
 325         if (!ret)
 326                 ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height);
 327         if (!ret)
 328                 ret = mt9m111_reg_write(client, ctx->reducer_xsize, width);
 329         if (!ret)
 330                 ret = mt9m111_reg_write(client, ctx->reducer_ysize, height);
 331         return ret;
 332 }
 333
 334 static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect,
 335                         int width, int height, u32 code)
 336 {
 337         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 338         int ret;
 339
 340         ret = reg_write(COLUMN_START, rect->left);
 341         if (!ret)
 342                 ret = reg_write(ROW_START, rect->top);
 343
 344         if (!ret)
 345                 ret = reg_write(WINDOW_WIDTH, rect->width);
 346         if (!ret)
 347                 ret = reg_write(WINDOW_HEIGHT, rect->height);
 348
 349         if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
 350                 /* IFP in use, down-scaling possible */
 351                 if (!ret)
 352                         ret = mt9m111_setup_rect_ctx(mt9m111, &context_b,
 353                                                      rect, width, height);
 354                 if (!ret)
 355                         ret = mt9m111_setup_rect_ctx(mt9m111, &context_a,
 356                                                      rect, width, height);
 357         }
 358
 359         dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n",
 360                 __func__, code, rect->width, rect->height, rect->left, rect->top,
 361                 width, height, ret);
 362
 363         return ret;
 364 }
 365
 366 static int mt9m111_enable(struct mt9m111 *mt9m111)
 367 {
 368         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 369         return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE);
 370 }
 371
 372 static int mt9m111_reset(struct mt9m111 *mt9m111)
 373 {
 374         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 375         int ret;
 376
 377         ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
 378         if (!ret)
 379                 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
 380         if (!ret)
 381                 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
 382                                 | MT9M111_RESET_RESET_SOC);
 383
 384         return ret;
 385 }
 386
 387 static int mt9m111_set_selection(struct v4l2_subdev *sd,
 388                                  struct v4l2_subdev_pad_config *cfg,
 389                                  struct v4l2_subdev_selection *sel)
 390 {
 391         struct i2c_client *client = v4l2_get_subdevdata(sd);
 392         struct mt9m111 *mt9m111 = to_mt9m111(client);
 393         struct v4l2_rect rect = sel->r;
 394         int width, height;
 395         int ret, align = 0;
 396
 397         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
 398             sel->target != V4L2_SEL_TGT_CROP)
 399                 return -EINVAL;
 400
 401         if (mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
 402             mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
 403                 /* Bayer format - even size lengths */
 404                 align = 1;
 405                 /* Let the user play with the starting pixel */
 406         }
 407
 408         /* FIXME: the datasheet doesn't specify minimum sizes */
 409         v4l_bound_align_image(&rect.width, 2, MT9M111_MAX_WIDTH, align,
 410                               &rect.height, 2, MT9M111_MAX_HEIGHT, align, 0);
 411         rect.left = clamp(rect.left, MT9M111_MIN_DARK_COLS,
 412                           MT9M111_MIN_DARK_COLS + MT9M111_MAX_WIDTH -
 413                           (__s32)rect.width);
 414         rect.top = clamp(rect.top, MT9M111_MIN_DARK_ROWS,
 415                          MT9M111_MIN_DARK_ROWS + MT9M111_MAX_HEIGHT -
 416                          (__s32)rect.height);
 417
 418         width = min(mt9m111->width, rect.width);
 419         height = min(mt9m111->height, rect.height);
 420
 421         ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code);
 422         if (!ret) {
 423                 mt9m111->rect = rect;
 424                 mt9m111->width = width;
 425                 mt9m111->height = height;
 426         }
 427
 428         return ret;
 429 }
 430
 431 static int mt9m111_get_selection(struct v4l2_subdev *sd,
 432                                  struct v4l2_subdev_pad_config *cfg,
 433                                  struct v4l2_subdev_selection *sel)
 434 {
 435         struct i2c_client *client = v4l2_get_subdevdata(sd);
 436         struct mt9m111 *mt9m111 = to_mt9m111(client);
 437
 438         if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
 439                 return -EINVAL;
 440
 441         switch (sel->target) {
 442         case V4L2_SEL_TGT_CROP_BOUNDS:
 443         case V4L2_SEL_TGT_CROP_DEFAULT:
 444                 sel->r.left = MT9M111_MIN_DARK_COLS;
 445                 sel->r.top = MT9M111_MIN_DARK_ROWS;
 446                 sel->r.width = MT9M111_MAX_WIDTH;
 447                 sel->r.height = MT9M111_MAX_HEIGHT;
 448                 return 0;
 449         case V4L2_SEL_TGT_CROP:
 450                 sel->r = mt9m111->rect;
 451                 return 0;
 452         default:
 453                 return -EINVAL;
 454         }
 455 }
 456
 457 static int mt9m111_get_fmt(struct v4l2_subdev *sd,
 458                 struct v4l2_subdev_pad_config *cfg,
 459                 struct v4l2_subdev_format *format)
 460 {
 461         struct v4l2_mbus_framefmt *mf = &format->format;
 462         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 463
 464         if (format->pad)
 465                 return -EINVAL;
 466
 467         mf->width       = mt9m111->width;
 468         mf->height      = mt9m111->height;
 469         mf->code        = mt9m111->fmt->code;
 470         mf->colorspace  = mt9m111->fmt->colorspace;
 471         mf->field       = V4L2_FIELD_NONE;
 472
 473         return 0;
 474 }
 475
 476 static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
 477                               u32 code)
 478 {
 479         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 480         u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
 481                 MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB |
 482                 MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 |
 483                 MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 |
 484                 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 485                 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 486         int ret;
 487
 488         switch (code) {
 489         case MEDIA_BUS_FMT_SBGGR8_1X8:
 490                 data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
 491                         MT9M111_OUTFMT_RGB;
 492                 break;
 493         case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE:
 494                 data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB;
 495                 break;
 496         case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE:
 497                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 |
 498                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 499                 break;
 500         case MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE:
 501                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
 502                 break;
 503         case MEDIA_BUS_FMT_RGB565_2X8_LE:
 504                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 505                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 506                 break;
 507         case MEDIA_BUS_FMT_RGB565_2X8_BE:
 508                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
 509                 break;
 510         case MEDIA_BUS_FMT_BGR565_2X8_BE:
 511                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 512                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 513                 break;
 514         case MEDIA_BUS_FMT_BGR565_2X8_LE:
 515                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 516                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 517                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 518                 break;
 519         case MEDIA_BUS_FMT_UYVY8_2X8:
 520                 data_outfmt2 = 0;
 521                 break;
 522         case MEDIA_BUS_FMT_VYUY8_2X8:
 523                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 524                 break;
 525         case MEDIA_BUS_FMT_YUYV8_2X8:
 526                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 527                 break;
 528         case MEDIA_BUS_FMT_YVYU8_2X8:
 529                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 530                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 531                 break;
 532         default:
 533                 dev_err(&client->dev, "Pixel format not handled: %x\n", code);
 534                 return -EINVAL;
 535         }
 536
 537         ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2,
 538                                data_outfmt2, mask_outfmt2);
 539         if (!ret)
 540                 ret = mt9m111_reg_mask(client, context_b.output_fmt_ctrl2,
 541                                        data_outfmt2, mask_outfmt2);
 542
 543         return ret;
 544 }
 545
 546 static int mt9m111_set_fmt(struct v4l2_subdev *sd,
 547                 struct v4l2_subdev_pad_config *cfg,
 548                 struct v4l2_subdev_format *format)
 549 {
 550         struct v4l2_mbus_framefmt *mf = &format->format;
 551         struct i2c_client *client = v4l2_get_subdevdata(sd);
 552         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 553         const struct mt9m111_datafmt *fmt;
 554         struct v4l2_rect *rect = &mt9m111->rect;
 555         bool bayer;
 556         int ret;
 557
 558         if (format->pad)
 559                 return -EINVAL;
 560
 561         fmt = mt9m111_find_datafmt(mt9m111, mf->code);
 562
 563         bayer = fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
 564                 fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE;
 565
 566         /*
 567          * With Bayer format enforce even side lengths, but let the user play
 568          * with the starting pixel
 569          */
 570         if (bayer) {
 571                 rect->width = ALIGN(rect->width, 2);
 572                 rect->height = ALIGN(rect->height, 2);
 573         }
 574
 575         if (fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
 576                 /* IFP bypass mode, no scaling */
 577                 mf->width = rect->width;
 578                 mf->height = rect->height;
 579         } else {
 580                 /* No upscaling */
 581                 if (mf->width > rect->width)
 582                         mf->width = rect->width;
 583                 if (mf->height > rect->height)
 584                         mf->height = rect->height;
 585         }
 586
 587         dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__,
 588                 mf->width, mf->height, fmt->code);
 589
 590         mf->code = fmt->code;
 591         mf->colorspace = fmt->colorspace;
 592
 593         if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
 594                 cfg->try_fmt = *mf;
 595                 return 0;
 596         }
 597
 598         ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code);
 599         if (!ret)
 600                 ret = mt9m111_set_pixfmt(mt9m111, mf->code);
 601         if (!ret) {
 602                 mt9m111->width  = mf->width;
 603                 mt9m111->height = mf->height;
 604                 mt9m111->fmt    = fmt;
 605         }
 606
 607         return ret;
 608 }
 609
 610 #ifdef CONFIG_VIDEO_ADV_DEBUG
 611 static int mt9m111_g_register(struct v4l2_subdev *sd,
 612                               struct v4l2_dbg_register *reg)
 613 {
 614         struct i2c_client *client = v4l2_get_subdevdata(sd);
 615         int val;
 616
 617         if (reg->reg > 0x2ff)
 618                 return -EINVAL;
 619
 620         val = mt9m111_reg_read(client, reg->reg);
 621         reg->size = 2;
 622         reg->val = (u64)val;
 623
 624         if (reg->val > 0xffff)
 625                 return -EIO;
 626
 627         return 0;
 628 }
 629
 630 static int mt9m111_s_register(struct v4l2_subdev *sd,
 631                               const struct v4l2_dbg_register *reg)
 632 {
 633         struct i2c_client *client = v4l2_get_subdevdata(sd);
 634
 635         if (reg->reg > 0x2ff)
 636                 return -EINVAL;
 637
 638         if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
 639                 return -EIO;
 640
 641         return 0;
 642 }
 643 #endif
 644
 645 static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
 646 {
 647         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 648         int ret;
 649
 650         if (flip)
 651                 ret = mt9m111_reg_set(client, mt9m111->ctx->read_mode, mask);
 652         else
 653                 ret = mt9m111_reg_clear(client, mt9m111->ctx->read_mode, mask);
 654
 655         return ret;
 656 }
 657
 658 static int mt9m111_get_global_gain(struct mt9m111 *mt9m111)
 659 {
 660         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 661         int data;
 662
 663         data = reg_read(GLOBAL_GAIN);
 664         if (data >= 0)
 665                 return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
 666                         (1 << ((data >> 9) & 1));
 667         return data;
 668 }
 669
 670 static int mt9m111_set_global_gain(struct mt9m111 *mt9m111, int gain)
 671 {
 672         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 673         u16 val;
 674
 675         if (gain > 63 * 2 * 2)
 676                 return -EINVAL;
 677
 678         if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
 679                 val = (1 << 10) | (1 << 9) | (gain / 4);
 680         else if ((gain >= 64) && (gain < 64 * 2))
 681                 val = (1 << 9) | (gain / 2);
 682         else
 683                 val = gain;
 684
 685         return reg_write(GLOBAL_GAIN, val);
 686 }
 687
 688 static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int val)
 689 {
 690         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 691
 692         if (val == V4L2_EXPOSURE_AUTO)
 693                 return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
 694         return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
 695 }
 696
 697 static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
 698 {
 699         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 700
 701         if (on)
 702                 return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
 703         return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
 704 }
 705
 706 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
 707 {
 708         struct mt9m111 *mt9m111 = container_of(ctrl->handler,
 709                                                struct mt9m111, hdl);
 710
 711         switch (ctrl->id) {
 712         case V4L2_CID_VFLIP:
 713                 return mt9m111_set_flip(mt9m111, ctrl->val,
 714                                         MT9M111_RMB_MIRROR_ROWS);
 715         case V4L2_CID_HFLIP:
 716                 return mt9m111_set_flip(mt9m111, ctrl->val,
 717                                         MT9M111_RMB_MIRROR_COLS);
 718         case V4L2_CID_GAIN:
 719                 return mt9m111_set_global_gain(mt9m111, ctrl->val);
 720         case V4L2_CID_EXPOSURE_AUTO:
 721                 return mt9m111_set_autoexposure(mt9m111, ctrl->val);
 722         case V4L2_CID_AUTO_WHITE_BALANCE:
 723                 return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
 724         }
 725
 726         return -EINVAL;
 727 }
 728
 729 static int mt9m111_suspend(struct mt9m111 *mt9m111)
 730 {
 731         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 732         int ret;
 733
 734         v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111));
 735
 736         ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
 737         if (!ret)
 738                 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC |
 739                               MT9M111_RESET_OUTPUT_DISABLE |
 740                               MT9M111_RESET_ANALOG_STANDBY);
 741         if (!ret)
 742                 ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
 743
 744         return ret;
 745 }
 746
 747 static void mt9m111_restore_state(struct mt9m111 *mt9m111)
 748 {
 749         mt9m111_set_context(mt9m111, mt9m111->ctx);
 750         mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
 751         mt9m111_setup_geometry(mt9m111, &mt9m111->rect,
 752                         mt9m111->width, mt9m111->height, mt9m111->fmt->code);
 753         v4l2_ctrl_handler_setup(&mt9m111->hdl);
 754 }
 755
 756 static int mt9m111_resume(struct mt9m111 *mt9m111)
 757 {
 758         int ret = mt9m111_enable(mt9m111);
 759         if (!ret)
 760                 ret = mt9m111_reset(mt9m111);
 761         if (!ret)
 762                 mt9m111_restore_state(mt9m111);
 763
 764         return ret;
 765 }
 766
 767 static int mt9m111_init(struct mt9m111 *mt9m111)
 768 {
 769         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 770         int ret;
 771
 772         ret = mt9m111_enable(mt9m111);
 773         if (!ret)
 774                 ret = mt9m111_reset(mt9m111);
 775         if (!ret)
 776                 ret = mt9m111_set_context(mt9m111, mt9m111->ctx);
 777         if (ret)
 778                 dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
 779         return ret;
 780 }
 781
 782 static int mt9m111_power_on(struct mt9m111 *mt9m111)
 783 {
 784         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 785         int ret;
 786
 787         ret = v4l2_clk_enable(mt9m111->clk);
 788         if (ret < 0)
 789                 return ret;
 790
 791         ret = mt9m111_resume(mt9m111);
 792         if (ret < 0) {
 793                 dev_err(&client->dev, "Failed to resume the sensor: %d\n", ret);
 794                 v4l2_clk_disable(mt9m111->clk);
 795         }
 796
 797         return ret;
 798 }
 799
 800 static void mt9m111_power_off(struct mt9m111 *mt9m111)
 801 {
 802         mt9m111_suspend(mt9m111);
 803         v4l2_clk_disable(mt9m111->clk);
 804 }
 805
 806 static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
 807 {
 808         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 809         int ret = 0;
 810
 811         mutex_lock(&mt9m111->power_lock);
 812
 813         /*
 814          * If the power count is modified from 0 to != 0 or from != 0 to 0,
 815          * update the power state.
 816          */
 817         if (mt9m111->power_count == !on) {
 818                 if (on)
 819                         ret = mt9m111_power_on(mt9m111);
 820                 else
 821                         mt9m111_power_off(mt9m111);
 822         }
 823
 824         if (!ret) {
 825                 /* Update the power count. */
 826                 mt9m111->power_count += on ? 1 : -1;
 827                 WARN_ON(mt9m111->power_count < 0);
 828         }
 829
 830         mutex_unlock(&mt9m111->power_lock);
 831         return ret;
 832 }
 833
 834 static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
 835         .s_ctrl = mt9m111_s_ctrl,
 836 };
 837
 838 static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
 839         .s_power        = mt9m111_s_power,
 840 #ifdef CONFIG_VIDEO_ADV_DEBUG
 841         .g_register     = mt9m111_g_register,
 842         .s_register     = mt9m111_s_register,
 843 #endif
 844 };
 845
 846 static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
 847                 struct v4l2_subdev_pad_config *cfg,
 848                 struct v4l2_subdev_mbus_code_enum *code)
 849 {
 850         if (code->pad || code->index >= ARRAY_SIZE(mt9m111_colour_fmts))
 851                 return -EINVAL;
 852
 853         code->code = mt9m111_colour_fmts[code->index].code;
 854         return 0;
 855 }
 856
 857 static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
 858                                 struct v4l2_mbus_config *cfg)
 859 {
 860         cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
 861                 V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
 862                 V4L2_MBUS_DATA_ACTIVE_HIGH;
 863         cfg->type = V4L2_MBUS_PARALLEL;
 864
 865         return 0;
 866 }
 867
 868 static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
 869         .g_mbus_config  = mt9m111_g_mbus_config,
 870 };
 871
 872 static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
 873         .enum_mbus_code = mt9m111_enum_mbus_code,
 874         .get_selection  = mt9m111_get_selection,
 875         .set_selection  = mt9m111_set_selection,
 876         .get_fmt        = mt9m111_get_fmt,
 877         .set_fmt        = mt9m111_set_fmt,
 878 };
 879
 880 static struct v4l2_subdev_ops mt9m111_subdev_ops = {
 881         .core   = &mt9m111_subdev_core_ops,
 882         .video  = &mt9m111_subdev_video_ops,
 883         .pad    = &mt9m111_subdev_pad_ops,
 884 };
 885
 886 /*
 887  * Interface active, can use i2c. If it fails, it can indeed mean, that
 888  * this wasn't our capture interface, so, we wait for the right one
 889  */
 890 static int mt9m111_video_probe(struct i2c_client *client)
 891 {
 892         struct mt9m111 *mt9m111 = to_mt9m111(client);
 893         s32 data;
 894         int ret;
 895
 896         ret = mt9m111_s_power(&mt9m111->subdev, 1);
 897         if (ret < 0)
 898                 return ret;
 899
 900         data = reg_read(CHIP_VERSION);
 901
 902         switch (data) {
 903         case 0x143a: /* MT9M111 or MT9M131 */
 904                 dev_info(&client->dev,
 905                         "Detected a MT9M111/MT9M131 chip ID %x\n", data);
 906                 break;
 907         case 0x148c: /* MT9M112 */
 908                 dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
 909                 break;
 910         default:
 911                 dev_err(&client->dev,
 912                         "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
 913                         data);
 914                 ret = -ENODEV;
 915                 goto done;
 916         }
 917
 918         ret = mt9m111_init(mt9m111);
 919         if (ret)
 920                 goto done;
 921
 922         ret = v4l2_ctrl_handler_setup(&mt9m111->hdl);
 923
 924 done:
 925         mt9m111_s_power(&mt9m111->subdev, 0);
 926         return ret;
 927 }
 928
 929 static int mt9m111_probe(struct i2c_client *client,
 930                          const struct i2c_device_id *did)
 931 {
 932         struct mt9m111 *mt9m111;
 933         struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
 934         int ret;
 935
 936         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
 937                 dev_warn(&adapter->dev,
 938                          "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
 939                 return -EIO;
 940         }
 941
 942         mt9m111 = devm_kzalloc(&client->dev, sizeof(struct mt9m111), GFP_KERNEL);
 943         if (!mt9m111)
 944                 return -ENOMEM;
 945
 946         mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
 947         if (IS_ERR(mt9m111->clk))
 948                 return -EPROBE_DEFER;
 949
 950         /* Default HIGHPOWER context */
 951         mt9m111->ctx = &context_b;
 952
 953         v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
 954         v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
 955         v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 956                         V4L2_CID_VFLIP, 0, 1, 1, 0);
 957         v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 958                         V4L2_CID_HFLIP, 0, 1, 1, 0);
 959         v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 960                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
 961         mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 962                         V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32);
 963         v4l2_ctrl_new_std_menu(&mt9m111->hdl,
 964                         &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
 965                         V4L2_EXPOSURE_AUTO);
 966         mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
 967         if (mt9m111->hdl.error) {
 968                 ret = mt9m111->hdl.error;
 969                 goto out_clkput;
 970         }
 971
 972         /* Second stage probe - when a capture adapter is there */
 973         mt9m111->rect.left      = MT9M111_MIN_DARK_COLS;
 974         mt9m111->rect.top       = MT9M111_MIN_DARK_ROWS;
 975         mt9m111->rect.width     = MT9M111_MAX_WIDTH;
 976         mt9m111->rect.height    = MT9M111_MAX_HEIGHT;
 977         mt9m111->fmt            = &mt9m111_colour_fmts[0];
 978         mt9m111->lastpage       = -1;
 979         mutex_init(&mt9m111->power_lock);
 980
 981         ret = mt9m111_video_probe(client);
 982         if (ret < 0)
 983                 goto out_hdlfree;
 984
 985         mt9m111->subdev.dev = &client->dev;
 986         ret = v4l2_async_register_subdev(&mt9m111->subdev);
 987         if (ret < 0)
 988                 goto out_hdlfree;
 989
 990         return 0;
 991
 992 out_hdlfree:
 993         v4l2_ctrl_handler_free(&mt9m111->hdl);
 994 out_clkput:
 995         v4l2_clk_put(mt9m111->clk);
 996
 997         return ret;
 998 }
 999
1000 static int mt9m111_remove(struct i2c_client *client)
1001 {
1002         struct mt9m111 *mt9m111 = to_mt9m111(client);
1003
1004         v4l2_async_unregister_subdev(&mt9m111->subdev);
1005         v4l2_clk_put(mt9m111->clk);
1006         v4l2_ctrl_handler_free(&mt9m111->hdl);
1007
1008         return 0;
1009 }
1010 static const struct of_device_id mt9m111_of_match[] = {
1011         { .compatible = "micron,mt9m111", },
1012         {},
1013 };
1014 MODULE_DEVICE_TABLE(of, mt9m111_of_match);
1015
1016 static const struct i2c_device_id mt9m111_id[] = {
1017         { "mt9m111", 0 },
1018         { }
1019 };
1020 MODULE_DEVICE_TABLE(i2c, mt9m111_id);
1021
1022 static struct i2c_driver mt9m111_i2c_driver = {
1023         .driver = {
1024                 .name = "mt9m111",
1025                 .of_match_table = of_match_ptr(mt9m111_of_match),
1026         },
1027         .probe          = mt9m111_probe,
1028         .remove         = mt9m111_remove,
1029         .id_table       = mt9m111_id,
1030 };
1031
1032 module_i2c_driver(mt9m111_i2c_driver);
1033
1034 MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
1035 MODULE_AUTHOR("Robert Jarzmik");
1036 MODULE_LICENSE("GPL");