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 static int debug;
  34 module_param_named(debug_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 fimc_is *is = fimc_isp_to_is(isp);
 132         struct v4l2_mbus_framefmt *mf = &fmt->format;
 133         struct v4l2_mbus_framefmt cur_fmt;
 134
 135         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 136                 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
 137                 fmt->format = *mf;
 138                 return 0;
 139         }
 140
 141         mf->colorspace = V4L2_COLORSPACE_SRGB;
 142
 143         mutex_lock(&isp->subdev_lock);
 144         __is_get_frame_size(is, &cur_fmt);
 145
 146         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 147                 /* full camera input frame size */
 148                 mf->width = cur_fmt.width + FIMC_ISP_CAC_MARGIN_WIDTH;
 149                 mf->height = cur_fmt.height + FIMC_ISP_CAC_MARGIN_HEIGHT;
 150                 mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
 151         } else {
 152                 /* crop size */
 153                 mf->width = cur_fmt.width;
 154                 mf->height = cur_fmt.height;
 155                 mf->code = V4L2_MBUS_FMT_YUV10_1X30;
 156         }
 157
 158         mutex_unlock(&isp->subdev_lock);
 159
 160         v4l2_dbg(1, debug, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n",
 161                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 162
 163         return 0;
 164 }
 165
 166 static void __isp_subdev_try_format(struct fimc_isp *isp,
 167                                    struct v4l2_subdev_format *fmt)
 168 {
 169         struct v4l2_mbus_framefmt *mf = &fmt->format;
 170
 171         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 172                 v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
 173                                 FIMC_ISP_SINK_WIDTH_MAX, 0,
 174                                 &mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
 175                                 FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
 176                 isp->subdev_fmt = *mf;
 177         } else {
 178                 /* Allow changing format only on sink pad */
 179                 mf->width = isp->subdev_fmt.width - FIMC_ISP_CAC_MARGIN_WIDTH;
 180                 mf->height = isp->subdev_fmt.height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 181                 mf->code = isp->subdev_fmt.code;
 182         }
 183 }
 184
 185 static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
 186                                    struct v4l2_subdev_fh *fh,
 187                                    struct v4l2_subdev_format *fmt)
 188 {
 189         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 190         struct fimc_is *is = fimc_isp_to_is(isp);
 191         struct v4l2_mbus_framefmt *mf = &fmt->format;
 192         int ret = 0;
 193
 194         v4l2_dbg(1, debug, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 195                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 196
 197         mf->colorspace = V4L2_COLORSPACE_SRGB;
 198
 199         mutex_lock(&isp->subdev_lock);
 200         __isp_subdev_try_format(isp, fmt);
 201
 202         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 203                 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
 204                 *mf = fmt->format;
 205                 mutex_unlock(&isp->subdev_lock);
 206                 return 0;
 207         }
 208
 209         if (sd->entity.stream_count == 0)
 210                 __is_set_frame_size(is, mf);
 211         else
 212                 ret = -EBUSY;
 213         mutex_unlock(&isp->subdev_lock);
 214
 215         return ret;
 216 }
 217
 218 static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
 219 {
 220         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 221         struct fimc_is *is = fimc_isp_to_is(isp);
 222         int ret;
 223
 224         v4l2_dbg(1, debug, sd, "%s: on: %d\n", __func__, on);
 225
 226         if (!test_bit(IS_ST_INIT_DONE, &is->state))
 227                 return -EBUSY;
 228
 229         fimc_is_mem_barrier();
 230
 231         if (on) {
 232                 if (__get_pending_param_count(is)) {
 233                         ret = fimc_is_itf_s_param(is, true);
 234                         if (ret < 0)
 235                                 return ret;
 236                 }
 237
 238                 v4l2_dbg(1, debug, sd, "changing mode to %d\n",
 239                                                 is->config_index);
 240                 ret = fimc_is_itf_mode_change(is);
 241                 if (ret)
 242                         return -EINVAL;
 243
 244                 clear_bit(IS_ST_STREAM_ON, &is->state);
 245                 fimc_is_hw_stream_on(is);
 246                 ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
 247                                          FIMC_IS_CONFIG_TIMEOUT);
 248                 if (ret < 0) {
 249                         v4l2_err(sd, "stream on timeout\n");
 250                         return ret;
 251                 }
 252         } else {
 253                 clear_bit(IS_ST_STREAM_OFF, &is->state);
 254                 fimc_is_hw_stream_off(is);
 255                 ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
 256                                          FIMC_IS_CONFIG_TIMEOUT);
 257                 if (ret < 0) {
 258                         v4l2_err(sd, "stream off timeout\n");
 259                         return ret;
 260                 }
 261                 is->setfile.sub_index = 0;
 262         }
 263
 264         return 0;
 265 }
 266
 267 static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
 268 {
 269         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 270         struct fimc_is *is = fimc_isp_to_is(isp);
 271         int ret = 0;
 272
 273         pr_debug("on: %d\n", on);
 274
 275         if (on) {
 276                 ret = pm_runtime_get_sync(&is->pdev->dev);
 277                 if (ret < 0)
 278                         return ret;
 279                 set_bit(IS_ST_PWR_ON, &is->state);
 280
 281                 ret = fimc_is_start_firmware(is);
 282                 if (ret < 0) {
 283                         v4l2_err(sd, "firmware booting failed\n");
 284                         pm_runtime_put(&is->pdev->dev);
 285                         return ret;
 286                 }
 287                 set_bit(IS_ST_PWR_SUBIP_ON, &is->state);
 288
 289                 ret = fimc_is_hw_initialize(is);
 290         } else {
 291                 /* Close sensor */
 292                 if (!test_bit(IS_ST_PWR_ON, &is->state)) {
 293                         fimc_is_hw_close_sensor(is, 0);
 294
 295                         ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
 296                                                  FIMC_IS_CONFIG_TIMEOUT);
 297                         if (ret < 0) {
 298                                 v4l2_err(sd, "sensor close timeout\n");
 299                                 return ret;
 300                         }
 301                 }
 302
 303                 /* SUB IP power off */
 304                 if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
 305                         fimc_is_hw_subip_power_off(is);
 306                         ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
 307                                                  FIMC_IS_CONFIG_TIMEOUT);
 308                         if (ret < 0) {
 309                                 v4l2_err(sd, "sub-IP power off timeout\n");
 310                                 return ret;
 311                         }
 312                 }
 313
 314                 fimc_is_cpu_set_power(is, 0);
 315                 pm_runtime_put_sync(&is->pdev->dev);
 316
 317                 clear_bit(IS_ST_PWR_ON, &is->state);
 318                 clear_bit(IS_ST_INIT_DONE, &is->state);
 319                 is->state = 0;
 320                 is->config[is->config_index].p_region_index1 = 0;
 321                 is->config[is->config_index].p_region_index2 = 0;
 322                 set_bit(IS_ST_IDLE, &is->state);
 323                 wmb();
 324         }
 325
 326         return ret;
 327 }
 328
 329 static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
 330                                 struct v4l2_subdev_fh *fh)
 331 {
 332         struct v4l2_mbus_framefmt fmt;
 333         struct v4l2_mbus_framefmt *format;
 334
 335         format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SINK);
 336
 337         fmt.colorspace = V4L2_COLORSPACE_SRGB;
 338         fmt.code = fimc_isp_formats[0].mbus_code;
 339         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH;
 340         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT;
 341         fmt.field = V4L2_FIELD_NONE;
 342         *format = fmt;
 343
 344         format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SRC_FIFO);
 345         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 346         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 347         *format = fmt;
 348
 349         format = v4l2_subdev_get_try_format(fh, FIMC_ISP_SD_PAD_SRC_DMA);
 350         *format = fmt;
 351
 352         return 0;
 353 }
 354
 355 static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
 356         .open = fimc_isp_subdev_open,
 357 };
 358
 359 static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
 360         .enum_mbus_code = fimc_is_subdev_enum_mbus_code,
 361         .get_fmt = fimc_isp_subdev_get_fmt,
 362         .set_fmt = fimc_isp_subdev_set_fmt,
 363 };
 364
 365 static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
 366         .s_stream = fimc_isp_subdev_s_stream,
 367 };
 368
 369 static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
 370         .s_power = fimc_isp_subdev_s_power,
 371 };
 372
 373 static struct v4l2_subdev_ops fimc_is_subdev_ops = {
 374         .core = &fimc_is_core_ops,
 375         .video = &fimc_is_subdev_video_ops,
 376         .pad = &fimc_is_subdev_pad_ops,
 377 };
 378
 379 static int __ctrl_set_white_balance(struct fimc_is *is, int value)
 380 {
 381         switch (value) {
 382         case V4L2_WHITE_BALANCE_AUTO:
 383                 __is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
 384                 break;
 385         case V4L2_WHITE_BALANCE_DAYLIGHT:
 386                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 387                                         ISP_AWB_ILLUMINATION_DAYLIGHT);
 388                 break;
 389         case V4L2_WHITE_BALANCE_CLOUDY:
 390                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 391                                         ISP_AWB_ILLUMINATION_CLOUDY);
 392                 break;
 393         case V4L2_WHITE_BALANCE_INCANDESCENT:
 394                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 395                                         ISP_AWB_ILLUMINATION_TUNGSTEN);
 396                 break;
 397         case V4L2_WHITE_BALANCE_FLUORESCENT:
 398                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 399                                         ISP_AWB_ILLUMINATION_FLUORESCENT);
 400                 break;
 401         default:
 402                 return -EINVAL;
 403         }
 404
 405         return 0;
 406 }
 407
 408 static int __ctrl_set_aewb_lock(struct fimc_is *is,
 409                                       struct v4l2_ctrl *ctrl)
 410 {
 411         bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
 412         bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
 413         struct isp_param *isp = &is->is_p_region->parameter.isp;
 414         int cmd, ret;
 415
 416         cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 417         isp->aa.cmd = cmd;
 418         isp->aa.target = ISP_AA_TARGET_AE;
 419         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 420         is->af.ae_lock_state = ae_lock;
 421         wmb();
 422
 423         ret = fimc_is_itf_s_param(is, false);
 424         if (ret < 0)
 425                 return ret;
 426
 427         cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 428         isp->aa.cmd = cmd;
 429         isp->aa.target = ISP_AA_TARGET_AE;
 430         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 431         is->af.awb_lock_state = awb_lock;
 432         wmb();
 433
 434         return fimc_is_itf_s_param(is, false);
 435 }
 436
 437 /* Supported manual ISO values */
 438 static const s64 iso_qmenu[] = {
 439         50, 100, 200, 400, 800,
 440 };
 441
 442 static int __ctrl_set_iso(struct fimc_is *is, int value)
 443 {
 444         unsigned int idx, iso;
 445
 446         if (value == V4L2_ISO_SENSITIVITY_AUTO) {
 447                 __is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
 448                 return 0;
 449         }
 450         idx = is->isp.ctrls.iso->val;
 451         if (idx >= ARRAY_SIZE(iso_qmenu))
 452                 return -EINVAL;
 453
 454         iso = iso_qmenu[idx];
 455         __is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
 456         return 0;
 457 }
 458
 459 static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 460 {
 461         unsigned int val;
 462
 463         switch (value) {
 464         case V4L2_EXPOSURE_METERING_AVERAGE:
 465                 val = ISP_METERING_COMMAND_AVERAGE;
 466                 break;
 467         case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
 468                 val = ISP_METERING_COMMAND_CENTER;
 469                 break;
 470         case V4L2_EXPOSURE_METERING_SPOT:
 471                 val = ISP_METERING_COMMAND_SPOT;
 472                 break;
 473         case V4L2_EXPOSURE_METERING_MATRIX:
 474                 val = ISP_METERING_COMMAND_MATRIX;
 475                 break;
 476         default:
 477                 return -EINVAL;
 478         };
 479
 480         __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 481         return 0;
 482 }
 483
 484 static int __ctrl_set_afc(struct fimc_is *is, int value)
 485 {
 486         switch (value) {
 487         case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
 488                 __is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
 489                 break;
 490         case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
 491                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
 492                 break;
 493         case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
 494                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
 495                 break;
 496         case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
 497                 __is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
 498                 break;
 499         default:
 500                 return -EINVAL;
 501         }
 502
 503         return 0;
 504 }
 505
 506 static int __ctrl_set_image_effect(struct fimc_is *is, int value)
 507 {
 508         static const u8 effects[][2] = {
 509                 { V4L2_COLORFX_NONE,     ISP_IMAGE_EFFECT_DISABLE },
 510                 { V4L2_COLORFX_BW,       ISP_IMAGE_EFFECT_MONOCHROME },
 511                 { V4L2_COLORFX_SEPIA,    ISP_IMAGE_EFFECT_SEPIA },
 512                 { V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
 513                 { 16 /* TODO */,         ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
 514         };
 515         int i;
 516
 517         for (i = 0; i < ARRAY_SIZE(effects); i++) {
 518                 if (effects[i][0] != value)
 519                         continue;
 520
 521                 __is_set_isp_effect(is, effects[i][1]);
 522                 return 0;
 523         }
 524
 525         return -EINVAL;
 526 }
 527
 528 static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
 529 {
 530         struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
 531         struct fimc_is *is = fimc_isp_to_is(isp);
 532         bool set_param = true;
 533         int ret = 0;
 534
 535         switch (ctrl->id) {
 536         case V4L2_CID_CONTRAST:
 537                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
 538                                     ctrl->val);
 539                 break;
 540
 541         case V4L2_CID_SATURATION:
 542                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
 543                                     ctrl->val);
 544                 break;
 545
 546         case V4L2_CID_SHARPNESS:
 547                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
 548                                     ctrl->val);
 549                 break;
 550
 551         case V4L2_CID_EXPOSURE_ABSOLUTE:
 552                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
 553                                     ctrl->val);
 554                 break;
 555
 556         case V4L2_CID_BRIGHTNESS:
 557                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
 558                                     ctrl->val);
 559                 break;
 560
 561         case V4L2_CID_HUE:
 562                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
 563                                     ctrl->val);
 564                 break;
 565
 566         case V4L2_CID_EXPOSURE_METERING:
 567                 ret = __ctrl_set_metering(is, ctrl->val);
 568                 break;
 569
 570         case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 571                 ret = __ctrl_set_white_balance(is, ctrl->val);
 572                 break;
 573
 574         case V4L2_CID_3A_LOCK:
 575                 ret = __ctrl_set_aewb_lock(is, ctrl);
 576                 set_param = false;
 577                 break;
 578
 579         case V4L2_CID_ISO_SENSITIVITY_AUTO:
 580                 ret = __ctrl_set_iso(is, ctrl->val);
 581                 break;
 582
 583         case V4L2_CID_POWER_LINE_FREQUENCY:
 584                 ret = __ctrl_set_afc(is, ctrl->val);
 585                 break;
 586
 587         case V4L2_CID_COLORFX:
 588                 __ctrl_set_image_effect(is, ctrl->val);
 589                 break;
 590
 591         default:
 592                 ret = -EINVAL;
 593                 break;
 594         }
 595
 596         if (ret < 0) {
 597                 v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
 598                                                 ctrl->name, ctrl->val);
 599                 return ret;
 600         }
 601
 602         if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
 603                 return fimc_is_itf_s_param(is, true);
 604
 605         return 0;
 606 }
 607
 608 static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
 609         .s_ctrl = fimc_is_s_ctrl,
 610 };
 611
 612 int fimc_isp_subdev_create(struct fimc_isp *isp)
 613 {
 614         const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
 615         struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
 616         struct v4l2_subdev *sd = &isp->subdev;
 617         struct fimc_isp_ctrls *ctrls = &isp->ctrls;
 618         int ret;
 619
 620         mutex_init(&isp->subdev_lock);
 621
 622         v4l2_subdev_init(sd, &fimc_is_subdev_ops);
 623         sd->grp_id = GRP_ID_FIMC_IS;
 624         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 625         snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
 626
 627         isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 628         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 629         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
 630         ret = media_entity_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 631                                 isp->subdev_pads, 0);
 632         if (ret)
 633                 return ret;
 634
 635         v4l2_ctrl_handler_init(handler, 20);
 636
 637         ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
 638                                                 -2, 2, 1, 0);
 639         ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
 640                                                 -4, 4, 1, 0);
 641         ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
 642                                                 -2, 2, 1, 0);
 643         ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
 644                                                 -2, 2, 1, 0);
 645         ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
 646                                                 -2, 2, 1, 0);
 647
 648         ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
 649                                         V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
 650                                         8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
 651
 652         ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
 653                                         V4L2_CID_EXPOSURE_ABSOLUTE,
 654                                         -4, 4, 1, 0);
 655
 656         ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
 657                                         V4L2_CID_EXPOSURE_METERING, 3,
 658                                         ~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
 659
 660         v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
 661                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
 662                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
 663         /* ISO sensitivity */
 664         ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
 665                         V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
 666                         V4L2_ISO_SENSITIVITY_AUTO);
 667
 668         ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
 669                         V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
 670                         ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
 671
 672         ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
 673                                         V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
 674
 675         /* TODO: Add support for NEGATIVE_COLOR option */
 676         ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
 677                         V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
 678
 679         if (handler->error) {
 680                 media_entity_cleanup(&sd->entity);
 681                 return handler->error;
 682         }
 683
 684         v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
 685                         V4L2_ISO_SENSITIVITY_MANUAL, false);
 686
 687         sd->ctrl_handler = handler;
 688         sd->internal_ops = &fimc_is_subdev_internal_ops;
 689         sd->entity.ops = &fimc_is_subdev_media_ops;
 690         v4l2_set_subdevdata(sd, isp);
 691
 692         return 0;
 693 }
 694
 695 void fimc_isp_subdev_destroy(struct fimc_isp *isp)
 696 {
 697         struct v4l2_subdev *sd = &isp->subdev;
 698
 699         v4l2_device_unregister_subdev(sd);
 700         media_entity_cleanup(&sd->entity);
 701         v4l2_ctrl_handler_free(&isp->ctrls.handler);
 702         v4l2_set_subdevdata(sd, NULL);
 703 }