drivers/media/platform/exynos4-is/fimc-isp.c

   1 /*
   2  * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
   3  *
   4  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   5  *
   6  * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
   7  *          Younghwan Joo <yhwan.joo@samsung.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13 #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
  14
  15 #include <linux/device.h>
  16 #include <linux/errno.h>
  17 #include <linux/kernel.h>
  18 #include <linux/list.h>
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/printk.h>
  22 #include <linux/pm_runtime.h>
  23 #include <linux/slab.h>
  24 #include <linux/types.h>
  25 #include <media/v4l2-device.h>
  26
  27 #include "media-dev.h"
  28 #include "fimc-is-command.h"
  29 #include "fimc-is-param.h"
  30 #include "fimc-is-regs.h"
  31 #include "fimc-is.h"
  32
  33 int fimc_isp_debug;
  34 module_param_named(debug_isp, fimc_isp_debug, int, S_IRUGO | S_IWUSR);
  35
  36 static const struct fimc_fmt fimc_isp_formats[FIMC_ISP_NUM_FORMATS] = {
  37         {
  38                 .name           = "RAW8 (GRBG)",
  39                 .fourcc         = V4L2_PIX_FMT_SGRBG8,
  40                 .depth          = { 8 },
  41                 .color          = FIMC_FMT_RAW8,
  42                 .memplanes      = 1,
  43                 .mbus_code      = V4L2_MBUS_FMT_SGRBG8_1X8,
  44         }, {
  45                 .name           = "RAW10 (GRBG)",
  46                 .fourcc         = V4L2_PIX_FMT_SGRBG10,
  47                 .depth          = { 10 },
  48                 .color          = FIMC_FMT_RAW10,
  49                 .memplanes      = 1,
  50                 .mbus_code      = V4L2_MBUS_FMT_SGRBG10_1X10,
  51         }, {
  52                 .name           = "RAW12 (GRBG)",
  53                 .fourcc         = V4L2_PIX_FMT_SGRBG12,
  54                 .depth          = { 12 },
  55                 .color          = FIMC_FMT_RAW12,
  56                 .memplanes      = 1,
  57                 .mbus_code      = V4L2_MBUS_FMT_SGRBG12_1X12,
  58         },
  59 };
  60
  61 /**
  62  * fimc_isp_find_format - lookup color format by fourcc or media bus code
  63  * @pixelformat: fourcc to match, ignored if null
  64  * @mbus_code: media bus code to match, ignored if null
  65  * @index: index to the fimc_isp_formats array, ignored if negative
  66  */
  67 const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
  68                                         const u32 *mbus_code, int index)
  69 {
  70         const struct fimc_fmt *fmt, *def_fmt = NULL;
  71         unsigned int i;
  72         int id = 0;
  73
  74         if (index >= (int)ARRAY_SIZE(fimc_isp_formats))
  75                 return NULL;
  76
  77         for (i = 0; i < ARRAY_SIZE(fimc_isp_formats); ++i) {
  78                 fmt = &fimc_isp_formats[i];
  79                 if (pixelformat && fmt->fourcc == *pixelformat)
  80                         return fmt;
  81                 if (mbus_code && fmt->mbus_code == *mbus_code)
  82                         return fmt;
  83                 if (index == id)
  84                         def_fmt = fmt;
  85                 id++;
  86         }
  87         return def_fmt;
  88 }
  89
  90 void fimc_isp_irq_handler(struct fimc_is *is)
  91 {
  92         is->i2h_cmd.args[0] = mcuctl_read(is, MCUCTL_REG_ISSR(20));
  93         is->i2h_cmd.args[1] = mcuctl_read(is, MCUCTL_REG_ISSR(21));
  94
  95         fimc_is_fw_clear_irq1(is, FIMC_IS_INT_FRAME_DONE_ISP);
  96
  97         /* TODO: Complete ISP DMA interrupt handler */
  98         wake_up(&is->irq_queue);
  99 }
 100
 101 /* Capture subdev media entity operations */
 102 static int fimc_is_link_setup(struct media_entity *entity,
 103                                 const struct media_pad *local,
 104                                 const struct media_pad *remote, u32 flags)
 105 {
 106         return 0;
 107 }
 108
 109 static const struct media_entity_operations fimc_is_subdev_media_ops = {
 110         .link_setup = fimc_is_link_setup,
 111 };
 112
 113 static int fimc_is_subdev_enum_mbus_code(struct v4l2_subdev *sd,
 114                                 struct v4l2_subdev_fh *fh,
 115                                 struct v4l2_subdev_mbus_code_enum *code)
 116 {
 117         const struct fimc_fmt *fmt;
 118
 119         fmt = fimc_isp_find_format(NULL, NULL, code->index);
 120         if (!fmt)
 121                 return -EINVAL;
 122         code->code = fmt->mbus_code;
 123         return 0;
 124 }
 125
 126 static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
 127                                    struct v4l2_subdev_fh *fh,
 128                                    struct v4l2_subdev_format *fmt)
 129 {
 130         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 131         struct v4l2_mbus_framefmt *mf = &fmt->format;
 132
 133         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 134                 *mf = *v4l2_subdev_get_try_format(fh, fmt->pad);
 135                 return 0;
 136         }
 137
 138         mf->colorspace = V4L2_COLORSPACE_SRGB;
 139
 140         mutex_lock(&isp->subdev_lock);
 141
 142         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 143                 /* ISP OTF input image format */
 144                 *mf = isp->sink_fmt;
 145         } else {
 146                 /* ISP OTF output image format */
 147                 *mf = isp->src_fmt;
 148
 149                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 150                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 151                         mf->code = V4L2_MBUS_FMT_YUV10_1X30;
 152                 }
 153         }
 154
 155         mutex_unlock(&isp->subdev_lock);
 156
 157         isp_dbg(1, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n", __func__,
 158                 fmt->pad, mf->code, mf->width, mf->height);
 159
 160         return 0;
 161 }
 162
 163 static void __isp_subdev_try_format(struct fimc_isp *isp,
 164                                     struct v4l2_subdev_fh *fh,
 165                                     struct v4l2_subdev_format *fmt)
 166 {
 167         struct v4l2_mbus_framefmt *mf = &fmt->format;
 168         struct v4l2_mbus_framefmt *format;
 169
 170         mf->colorspace = V4L2_COLORSPACE_SRGB;
 171
 172         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 173                 v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
 174                                 FIMC_ISP_SINK_WIDTH_MAX, 0,
 175                                 &mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
 176                                 FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
 177                 mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
 178         } else {
 179                 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
 180                         format = v4l2_subdev_get_try_format(fh,
 181                                                 FIMC_ISP_SD_PAD_SINK);
 182                 else
 183                         format = &isp->sink_fmt;
 184
 185                 /* Allow changing format only on sink pad */
 186                 mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
 187                 mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 188
 189                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 190                         mf->code = V4L2_MBUS_FMT_YUV10_1X30;
 191                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 192                 } else {
 193                         mf->code = format->code;
 194                 }
 195         }
 196 }
 197
 198 static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
 199                                    struct v4l2_subdev_fh *fh,
 200                                    struct v4l2_subdev_format *fmt)
 201 {
 202         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 203         struct fimc_is *is = fimc_isp_to_is(isp);
 204         struct v4l2_mbus_framefmt *mf = &fmt->format;
 205         int ret = 0;
 206
 207         isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 208                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 209
 210         mutex_lock(&isp->subdev_lock);
 211         __isp_subdev_try_format(isp, fh, fmt);
 212
 213         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 214                 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
 215                 *mf = fmt->format;
 216
 217                 /* Propagate format to the source pads */
 218                 if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 219                         struct v4l2_subdev_format format = *fmt;
 220                         unsigned int pad;
 221
 222                         for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
 223                                         pad < FIMC_ISP_SD_PADS_NUM; pad++) {
 224                                 format.pad = pad;
 225                                 __isp_subdev_try_format(isp, fh, &format);
 226                                 mf = v4l2_subdev_get_try_format(fh, pad);
 227                                 *mf = format.format;
 228                         }
 229                 }
 230         } else {
 231                 if (sd->entity.stream_count == 0) {
 232                         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 233                                 struct v4l2_subdev_format format = *fmt;
 234
 235                                 isp->sink_fmt = *mf;
 236
 237                                 format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
 238                                 __isp_subdev_try_format(isp, fh, &format);
 239
 240                                 isp->src_fmt = format.format;
 241                                 __is_set_frame_size(is, &isp->src_fmt);
 242                         } else {
 243                                 isp->src_fmt = *mf;
 244                         }
 245                 } else {
 246                         ret = -EBUSY;
 247                 }
 248         }
 249
 250         mutex_unlock(&isp->subdev_lock);
 251         return ret;
 252 }
 253
 254 static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
 255 {
 256         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 257         struct fimc_is *is = fimc_isp_to_is(isp);
 258         int ret;
 259
 260         isp_dbg(1, sd, "%s: on: %d\n", __func__, on);
 261
 262         if (!test_bit(IS_ST_INIT_DONE, &is->state))
 263                 return -EBUSY;
 264
 265         fimc_is_mem_barrier();
 266
 267         if (on) {
 268                 if (__get_pending_param_count(is)) {
 269                         ret = fimc_is_itf_s_param(is, true);
 270                         if (ret < 0)
 271                                 return ret;
 272                 }
 273
 274                 isp_dbg(1, sd, "changing mode to %d\n", is->config_index);
 275
 276                 ret = fimc_is_itf_mode_change(is);
 277                 if (ret)
 278                         return -EINVAL;
 279
 280                 clear_bit(IS_ST_STREAM_ON, &is->state);
 281                 fimc_is_hw_stream_on(is);
 282                 ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
 283                                          FIMC_IS_CONFIG_TIMEOUT);
 284                 if (ret < 0) {
 285                         v4l2_err(sd, "stream on timeout\n");
 286                         return ret;
 287                 }
 288         } else {
 289                 clear_bit(IS_ST_STREAM_OFF, &is->state);
 290                 fimc_is_hw_stream_off(is);
 291                 ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
 292                                          FIMC_IS_CONFIG_TIMEOUT);
 293                 if (ret < 0) {
 294                         v4l2_err(sd, "stream off timeout\n");
 295                         return ret;
 296                 }
 297                 is->setfile.sub_index = 0;
 298         }
 299
 300         return 0;
 301 }
 302
 303 static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
 304 {
 305         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 306         struct fimc_is *is = fimc_isp_to_is(isp);
 307         int ret = 0;
 308
 309         pr_debug("on: %d\n", on);
 310
 311         if (on) {
 312                 ret = pm_runtime_get_sync(&is->pdev->dev);
 313                 if (ret < 0)
 314                         return ret;
 315                 set_bit(IS_ST_PWR_ON, &is->state);
 316
 317                 ret = fimc_is_start_firmware(is);
 318                 if (ret < 0) {
 319                         v4l2_err(sd, "firmware booting failed\n");
 320                         pm_runtime_put(&is->pdev->dev);
 321                         return ret;
 322                 }
 323                 set_bit(IS_ST_PWR_SUBIP_ON, &is->state);
 324
 325                 ret = fimc_is_hw_initialize(is);
 326         } else {
 327                 /* Close sensor */
 328                 if (!test_bit(IS_ST_PWR_ON, &is->state)) {
 329                         fimc_is_hw_close_sensor(is, 0);
 330
 331                         ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
 332                                                  FIMC_IS_CONFIG_TIMEOUT);
 333                         if (ret < 0) {
 334                                 v4l2_err(sd, "sensor close timeout\n");
 335                                 return ret;
 336                         }
 337                 }
 338
 339                 /* SUB IP power off */
 340                 if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
 341                         fimc_is_hw_subip_power_off(is);
 342                         ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
 343                                                  FIMC_IS_CONFIG_TIMEOUT);
 344                         if (ret < 0) {
 345                                 v4l2_err(sd, "sub-IP power off timeout\n");
 346                                 return ret;
 347                         }
 348                 }
 349
 350                 fimc_is_cpu_set_power(is, 0);
 351                 pm_runtime_put_sync(&is->pdev->dev);
 352
 353                 clear_bit(IS_ST_PWR_ON, &is->state);
 354                 clear_bit(IS_ST_INIT_DONE, &is->state);
 355                 is->state = 0;
 356                 is->config[is->config_index].p_region_index[0] = 0;
 357                 is->config[is->config_index].p_region_index[1] = 0;
 358                 set_bit(IS_ST_IDLE, &is->state);
 359                 wmb();
 360         }
 361
 362         return ret;
 363 }
 364
 365 static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
 366                                 struct v4l2_subdev_fh *fh)
 367 {
 368         struct v4l2_mbus_framefmt fmt;
 369         struct v4l2_mbus_framefmt *format;
 370
 371         format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SINK);
 372
 373         fmt.colorspace = V4L2_COLORSPACE_SRGB;
 374         fmt.code = fimc_isp_formats[0].mbus_code;
 375         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH;
 376         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT;
 377         fmt.field = V4L2_FIELD_NONE;
 378         *format = fmt;
 379
 380         format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SRC_FIFO);
 381         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 382         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 383         *format = fmt;
 384
 385         format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SRC_DMA);
 386         *format = fmt;
 387
 388         return 0;
 389 }
 390
 391 static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
 392         .open = fimc_isp_subdev_open,
 393 };
 394
 395 static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
 396         .enum_mbus_code = fimc_is_subdev_enum_mbus_code,
 397         .get_fmt = fimc_isp_subdev_get_fmt,
 398         .set_fmt = fimc_isp_subdev_set_fmt,
 399 };
 400
 401 static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
 402         .s_stream = fimc_isp_subdev_s_stream,
 403 };
 404
 405 static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
 406         .s_power = fimc_isp_subdev_s_power,
 407 };
 408
 409 static struct v4l2_subdev_ops fimc_is_subdev_ops = {
 410         .core = &fimc_is_core_ops,
 411         .video = &fimc_is_subdev_video_ops,
 412         .pad = &fimc_is_subdev_pad_ops,
 413 };
 414
 415 static int __ctrl_set_white_balance(struct fimc_is *is, int value)
 416 {
 417         switch (value) {
 418         case V4L2_WHITE_BALANCE_AUTO:
 419                 __is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
 420                 break;
 421         case V4L2_WHITE_BALANCE_DAYLIGHT:
 422                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 423                                         ISP_AWB_ILLUMINATION_DAYLIGHT);
 424                 break;
 425         case V4L2_WHITE_BALANCE_CLOUDY:
 426                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 427                                         ISP_AWB_ILLUMINATION_CLOUDY);
 428                 break;
 429         case V4L2_WHITE_BALANCE_INCANDESCENT:
 430                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 431                                         ISP_AWB_ILLUMINATION_TUNGSTEN);
 432                 break;
 433         case V4L2_WHITE_BALANCE_FLUORESCENT:
 434                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 435                                         ISP_AWB_ILLUMINATION_FLUORESCENT);
 436                 break;
 437         default:
 438                 return -EINVAL;
 439         }
 440
 441         return 0;
 442 }
 443
 444 static int __ctrl_set_aewb_lock(struct fimc_is *is,
 445                                       struct v4l2_ctrl *ctrl)
 446 {
 447         bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
 448         bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
 449         struct isp_param *isp = &is->is_p_region->parameter.isp;
 450         int cmd, ret;
 451
 452         cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 453         isp->aa.cmd = cmd;
 454         isp->aa.target = ISP_AA_TARGET_AE;
 455         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 456         is->af.ae_lock_state = ae_lock;
 457         wmb();
 458
 459         ret = fimc_is_itf_s_param(is, false);
 460         if (ret < 0)
 461                 return ret;
 462
 463         cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 464         isp->aa.cmd = cmd;
 465         isp->aa.target = ISP_AA_TARGET_AE;
 466         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 467         is->af.awb_lock_state = awb_lock;
 468         wmb();
 469
 470         return fimc_is_itf_s_param(is, false);
 471 }
 472
 473 /* Supported manual ISO values */
 474 static const s64 iso_qmenu[] = {
 475         50, 100, 200, 400, 800,
 476 };
 477
 478 static int __ctrl_set_iso(struct fimc_is *is, int value)
 479 {
 480         unsigned int idx, iso;
 481
 482         if (value == V4L2_ISO_SENSITIVITY_AUTO) {
 483                 __is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
 484                 return 0;
 485         }
 486         idx = is->isp.ctrls.iso->val;
 487         if (idx >= ARRAY_SIZE(iso_qmenu))
 488                 return -EINVAL;
 489
 490         iso = iso_qmenu[idx];
 491         __is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
 492         return 0;
 493 }
 494
 495 static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 496 {
 497         unsigned int val;
 498
 499         switch (value) {
 500         case V4L2_EXPOSURE_METERING_AVERAGE:
 501                 val = ISP_METERING_COMMAND_AVERAGE;
 502                 break;
 503         case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
 504                 val = ISP_METERING_COMMAND_CENTER;
 505                 break;
 506         case V4L2_EXPOSURE_METERING_SPOT:
 507                 val = ISP_METERING_COMMAND_SPOT;
 508                 break;
 509         case V4L2_EXPOSURE_METERING_MATRIX:
 510                 val = ISP_METERING_COMMAND_MATRIX;
 511                 break;
 512         default:
 513                 return -EINVAL;
 514         };
 515
 516         __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 517         return 0;
 518 }
 519
 520 static int __ctrl_set_afc(struct fimc_is *is, int value)
 521 {
 522         switch (value) {
 523         case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
 524                 __is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
 525                 break;
 526         case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
 527                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
 528                 break;
 529         case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
 530                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
 531                 break;
 532         case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
 533                 __is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
 534                 break;
 535         default:
 536                 return -EINVAL;
 537         }
 538
 539         return 0;
 540 }
 541
 542 static int __ctrl_set_image_effect(struct fimc_is *is, int value)
 543 {
 544         static const u8 effects[][2] = {
 545                 { V4L2_COLORFX_NONE,     ISP_IMAGE_EFFECT_DISABLE },
 546                 { V4L2_COLORFX_BW,       ISP_IMAGE_EFFECT_MONOCHROME },
 547                 { V4L2_COLORFX_SEPIA,    ISP_IMAGE_EFFECT_SEPIA },
 548                 { V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
 549                 { 16 /* TODO */,         ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
 550         };
 551         int i;
 552
 553         for (i = 0; i < ARRAY_SIZE(effects); i++) {
 554                 if (effects[i][0] != value)
 555                         continue;
 556
 557                 __is_set_isp_effect(is, effects[i][1]);
 558                 return 0;
 559         }
 560
 561         return -EINVAL;
 562 }
 563
 564 static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
 565 {
 566         struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
 567         struct fimc_is *is = fimc_isp_to_is(isp);
 568         bool set_param = true;
 569         int ret = 0;
 570
 571         switch (ctrl->id) {
 572         case V4L2_CID_CONTRAST:
 573                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
 574                                     ctrl->val);
 575                 break;
 576
 577         case V4L2_CID_SATURATION:
 578                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
 579                                     ctrl->val);
 580                 break;
 581
 582         case V4L2_CID_SHARPNESS:
 583                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
 584                                     ctrl->val);
 585                 break;
 586
 587         case V4L2_CID_EXPOSURE_ABSOLUTE:
 588                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
 589                                     ctrl->val);
 590                 break;
 591
 592         case V4L2_CID_BRIGHTNESS:
 593                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
 594                                     ctrl->val);
 595                 break;
 596
 597         case V4L2_CID_HUE:
 598                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
 599                                     ctrl->val);
 600                 break;
 601
 602         case V4L2_CID_EXPOSURE_METERING:
 603                 ret = __ctrl_set_metering(is, ctrl->val);
 604                 break;
 605
 606         case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 607                 ret = __ctrl_set_white_balance(is, ctrl->val);
 608                 break;
 609
 610         case V4L2_CID_3A_LOCK:
 611                 ret = __ctrl_set_aewb_lock(is, ctrl);
 612                 set_param = false;
 613                 break;
 614
 615         case V4L2_CID_ISO_SENSITIVITY_AUTO:
 616                 ret = __ctrl_set_iso(is, ctrl->val);
 617                 break;
 618
 619         case V4L2_CID_POWER_LINE_FREQUENCY:
 620                 ret = __ctrl_set_afc(is, ctrl->val);
 621                 break;
 622
 623         case V4L2_CID_COLORFX:
 624                 __ctrl_set_image_effect(is, ctrl->val);
 625                 break;
 626
 627         default:
 628                 ret = -EINVAL;
 629                 break;
 630         }
 631
 632         if (ret < 0) {
 633                 v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
 634                                                 ctrl->name, ctrl->val);
 635                 return ret;
 636         }
 637
 638         if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
 639                 return fimc_is_itf_s_param(is, true);
 640
 641         return 0;
 642 }
 643
 644 static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
 645         .s_ctrl = fimc_is_s_ctrl,
 646 };
 647
 648 static void __isp_subdev_set_default_format(struct fimc_isp *isp)
 649 {
 650         struct fimc_is *is = fimc_isp_to_is(isp);
 651
 652         isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
 653                                 FIMC_ISP_CAC_MARGIN_WIDTH;
 654         isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
 655                                 FIMC_ISP_CAC_MARGIN_HEIGHT;
 656         isp->sink_fmt.code = V4L2_MBUS_FMT_SGRBG10_1X10;
 657
 658         isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 659         isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 660         isp->src_fmt.code = V4L2_MBUS_FMT_SGRBG10_1X10;
 661         __is_set_frame_size(is, &isp->src_fmt);
 662 }
 663
 664 int fimc_isp_subdev_create(struct fimc_isp *isp)
 665 {
 666         const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
 667         struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
 668         struct v4l2_subdev *sd = &isp->subdev;
 669         struct fimc_isp_ctrls *ctrls = &isp->ctrls;
 670         int ret;
 671
 672         mutex_init(&isp->subdev_lock);
 673
 674         v4l2_subdev_init(sd, &fimc_is_subdev_ops);
 675
 676         sd->owner = THIS_MODULE;
 677         sd->grp_id = GRP_ID_FIMC_IS;
 678         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 679         snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
 680
 681         isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 682         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 683         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
 684         ret = media_entity_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 685                                 isp->subdev_pads, 0);
 686         if (ret)
 687                 return ret;
 688
 689         v4l2_ctrl_handler_init(handler, 20);
 690
 691         ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
 692                                                 -2, 2, 1, 0);
 693         ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
 694                                                 -4, 4, 1, 0);
 695         ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
 696                                                 -2, 2, 1, 0);
 697         ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
 698                                                 -2, 2, 1, 0);
 699         ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
 700                                                 -2, 2, 1, 0);
 701
 702         ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
 703                                         V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
 704                                         8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
 705
 706         ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
 707                                         V4L2_CID_EXPOSURE_ABSOLUTE,
 708                                         -4, 4, 1, 0);
 709
 710         ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
 711                                         V4L2_CID_EXPOSURE_METERING, 3,
 712                                         ~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
 713
 714         v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
 715                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
 716                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
 717         /* ISO sensitivity */
 718         ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
 719                         V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
 720                         V4L2_ISO_SENSITIVITY_AUTO);
 721
 722         ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
 723                         V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
 724                         ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
 725
 726         ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
 727                                         V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
 728
 729         /* TODO: Add support for NEGATIVE_COLOR option */
 730         ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
 731                         V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
 732
 733         if (handler->error) {
 734                 media_entity_cleanup(&sd->entity);
 735                 return handler->error;
 736         }
 737
 738         v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
 739                         V4L2_ISO_SENSITIVITY_MANUAL, false);
 740
 741         sd->ctrl_handler = handler;
 742         sd->internal_ops = &fimc_is_subdev_internal_ops;
 743         sd->entity.ops = &fimc_is_subdev_media_ops;
 744         v4l2_set_subdevdata(sd, isp);
 745
 746         __isp_subdev_set_default_format(isp);
 747
 748         return 0;
 749 }
 750
 751 void fimc_isp_subdev_destroy(struct fimc_isp *isp)
 752 {
 753         struct v4l2_subdev *sd = &isp->subdev;
 754
 755         v4l2_device_unregister_subdev(sd);
 756         media_entity_cleanup(&sd->entity);
 757         v4l2_ctrl_handler_free(&isp->ctrls.handler);
 758         v4l2_set_subdevdata(sd, NULL);
 759 }