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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
   4  *
   5  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   6  *
   7  * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
   8  *          Younghwan Joo <yhwan.joo@samsung.com>
   9  */
  10 #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
  11
  12 #include <linux/device.h>
  13 #include <linux/errno.h>
  14 #include <linux/kernel.h>
  15 #include <linux/list.h>
  16 #include <linux/module.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/printk.h>
  19 #include <linux/pm_runtime.h>
  20 #include <linux/slab.h>
  21 #include <linux/types.h>
  22 #include <media/v4l2-device.h>
  23
  24 #include "media-dev.h"
  25 #include "fimc-isp-video.h"
  26 #include "fimc-is-command.h"
  27 #include "fimc-is-param.h"
  28 #include "fimc-is-regs.h"
  29 #include "fimc-is.h"
  30
  31 int fimc_isp_debug;
  32 module_param_named(debug_isp, fimc_isp_debug, int, S_IRUGO | S_IWUSR);
  33
  34 static const struct fimc_fmt fimc_isp_formats[FIMC_ISP_NUM_FORMATS] = {
  35         {
  36                 .fourcc         = V4L2_PIX_FMT_SGRBG8,
  37                 .depth          = { 8 },
  38                 .color          = FIMC_FMT_RAW8,
  39                 .memplanes      = 1,
  40                 .mbus_code      = MEDIA_BUS_FMT_SGRBG8_1X8,
  41         }, {
  42                 .fourcc         = V4L2_PIX_FMT_SGRBG10,
  43                 .depth          = { 10 },
  44                 .color          = FIMC_FMT_RAW10,
  45                 .memplanes      = 1,
  46                 .mbus_code      = MEDIA_BUS_FMT_SGRBG10_1X10,
  47         }, {
  48                 .fourcc         = V4L2_PIX_FMT_SGRBG12,
  49                 .depth          = { 12 },
  50                 .color          = FIMC_FMT_RAW12,
  51                 .memplanes      = 1,
  52                 .mbus_code      = MEDIA_BUS_FMT_SGRBG12_1X12,
  53         },
  54 };
  55
  56 /**
  57  * fimc_isp_find_format - lookup color format by fourcc or media bus code
  58  * @pixelformat: fourcc to match, ignored if null
  59  * @mbus_code: media bus code to match, ignored if null
  60  * @index: index to the fimc_isp_formats array, ignored if negative
  61  */
  62 const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
  63                                         const u32 *mbus_code, int index)
  64 {
  65         const struct fimc_fmt *fmt, *def_fmt = NULL;
  66         unsigned int i;
  67         int id = 0;
  68
  69         if (index >= (int)ARRAY_SIZE(fimc_isp_formats))
  70                 return NULL;
  71
  72         for (i = 0; i < ARRAY_SIZE(fimc_isp_formats); ++i) {
  73                 fmt = &fimc_isp_formats[i];
  74                 if (pixelformat && fmt->fourcc == *pixelformat)
  75                         return fmt;
  76                 if (mbus_code && fmt->mbus_code == *mbus_code)
  77                         return fmt;
  78                 if (index == id)
  79                         def_fmt = fmt;
  80                 id++;
  81         }
  82         return def_fmt;
  83 }
  84
  85 void fimc_isp_irq_handler(struct fimc_is *is)
  86 {
  87         is->i2h_cmd.args[0] = mcuctl_read(is, MCUCTL_REG_ISSR(20));
  88         is->i2h_cmd.args[1] = mcuctl_read(is, MCUCTL_REG_ISSR(21));
  89
  90         fimc_is_fw_clear_irq1(is, FIMC_IS_INT_FRAME_DONE_ISP);
  91         fimc_isp_video_irq_handler(is);
  92
  93         wake_up(&is->irq_queue);
  94 }
  95
  96 /* Capture subdev media entity operations */
  97 static int fimc_is_link_setup(struct media_entity *entity,
  98                                 const struct media_pad *local,
  99                                 const struct media_pad *remote, u32 flags)
 100 {
 101         return 0;
 102 }
 103
 104 static const struct media_entity_operations fimc_is_subdev_media_ops = {
 105         .link_setup = fimc_is_link_setup,
 106 };
 107
 108 static int fimc_is_subdev_enum_mbus_code(struct v4l2_subdev *sd,
 109                                 struct v4l2_subdev_pad_config *cfg,
 110                                 struct v4l2_subdev_mbus_code_enum *code)
 111 {
 112         const struct fimc_fmt *fmt;
 113
 114         fmt = fimc_isp_find_format(NULL, NULL, code->index);
 115         if (!fmt)
 116                 return -EINVAL;
 117         code->code = fmt->mbus_code;
 118         return 0;
 119 }
 120
 121 static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
 122                                    struct v4l2_subdev_pad_config *cfg,
 123                                    struct v4l2_subdev_format *fmt)
 124 {
 125         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 126         struct v4l2_mbus_framefmt *mf = &fmt->format;
 127
 128         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 129                 *mf = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
 130                 return 0;
 131         }
 132
 133         mf->colorspace = V4L2_COLORSPACE_SRGB;
 134
 135         mutex_lock(&isp->subdev_lock);
 136
 137         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 138                 /* ISP OTF input image format */
 139                 *mf = isp->sink_fmt;
 140         } else {
 141                 /* ISP OTF output image format */
 142                 *mf = isp->src_fmt;
 143
 144                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 145                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 146                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 147                 }
 148         }
 149
 150         mutex_unlock(&isp->subdev_lock);
 151
 152         isp_dbg(1, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n", __func__,
 153                 fmt->pad, mf->code, mf->width, mf->height);
 154
 155         return 0;
 156 }
 157
 158 static void __isp_subdev_try_format(struct fimc_isp *isp,
 159                                     struct v4l2_subdev_pad_config *cfg,
 160                                     struct v4l2_subdev_format *fmt)
 161 {
 162         struct v4l2_mbus_framefmt *mf = &fmt->format;
 163         struct v4l2_mbus_framefmt *format;
 164
 165         mf->colorspace = V4L2_COLORSPACE_SRGB;
 166
 167         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 168                 v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
 169                                 FIMC_ISP_SINK_WIDTH_MAX, 0,
 170                                 &mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
 171                                 FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
 172                 mf->code = MEDIA_BUS_FMT_SGRBG10_1X10;
 173         } else {
 174                 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
 175                         format = v4l2_subdev_get_try_format(&isp->subdev, cfg,
 176                                                 FIMC_ISP_SD_PAD_SINK);
 177                 else
 178                         format = &isp->sink_fmt;
 179
 180                 /* Allow changing format only on sink pad */
 181                 mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
 182                 mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 183
 184                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 185                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 186                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 187                 } else {
 188                         mf->code = format->code;
 189                 }
 190         }
 191 }
 192
 193 static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
 194                                    struct v4l2_subdev_pad_config *cfg,
 195                                    struct v4l2_subdev_format *fmt)
 196 {
 197         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 198         struct fimc_is *is = fimc_isp_to_is(isp);
 199         struct v4l2_mbus_framefmt *mf = &fmt->format;
 200         int ret = 0;
 201
 202         isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 203                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 204
 205         mutex_lock(&isp->subdev_lock);
 206         __isp_subdev_try_format(isp, cfg, fmt);
 207
 208         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 209                 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
 210                 *mf = fmt->format;
 211
 212                 /* Propagate format to the source pads */
 213                 if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 214                         struct v4l2_subdev_format format = *fmt;
 215                         unsigned int pad;
 216
 217                         for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
 218                                         pad < FIMC_ISP_SD_PADS_NUM; pad++) {
 219                                 format.pad = pad;
 220                                 __isp_subdev_try_format(isp, cfg, &format);
 221                                 mf = v4l2_subdev_get_try_format(sd, cfg, pad);
 222                                 *mf = format.format;
 223                         }
 224                 }
 225         } else {
 226                 if (sd->entity.stream_count == 0) {
 227                         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 228                                 struct v4l2_subdev_format format = *fmt;
 229
 230                                 isp->sink_fmt = *mf;
 231
 232                                 format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
 233                                 __isp_subdev_try_format(isp, cfg, &format);
 234
 235                                 isp->src_fmt = format.format;
 236                                 __is_set_frame_size(is, &isp->src_fmt);
 237                         } else {
 238                                 isp->src_fmt = *mf;
 239                         }
 240                 } else {
 241                         ret = -EBUSY;
 242                 }
 243         }
 244
 245         mutex_unlock(&isp->subdev_lock);
 246         return ret;
 247 }
 248
 249 static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
 250 {
 251         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 252         struct fimc_is *is = fimc_isp_to_is(isp);
 253         int ret;
 254
 255         isp_dbg(1, sd, "%s: on: %d\n", __func__, on);
 256
 257         if (!test_bit(IS_ST_INIT_DONE, &is->state))
 258                 return -EBUSY;
 259
 260         fimc_is_mem_barrier();
 261
 262         if (on) {
 263                 if (__get_pending_param_count(is)) {
 264                         ret = fimc_is_itf_s_param(is, true);
 265                         if (ret < 0)
 266                                 return ret;
 267                 }
 268
 269                 isp_dbg(1, sd, "changing mode to %d\n", is->config_index);
 270
 271                 ret = fimc_is_itf_mode_change(is);
 272                 if (ret)
 273                         return -EINVAL;
 274
 275                 clear_bit(IS_ST_STREAM_ON, &is->state);
 276                 fimc_is_hw_stream_on(is);
 277                 ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
 278                                          FIMC_IS_CONFIG_TIMEOUT);
 279                 if (ret < 0) {
 280                         v4l2_err(sd, "stream on timeout\n");
 281                         return ret;
 282                 }
 283         } else {
 284                 clear_bit(IS_ST_STREAM_OFF, &is->state);
 285                 fimc_is_hw_stream_off(is);
 286                 ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
 287                                          FIMC_IS_CONFIG_TIMEOUT);
 288                 if (ret < 0) {
 289                         v4l2_err(sd, "stream off timeout\n");
 290                         return ret;
 291                 }
 292                 is->setfile.sub_index = 0;
 293         }
 294
 295         return 0;
 296 }
 297
 298 static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
 299 {
 300         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 301         struct fimc_is *is = fimc_isp_to_is(isp);
 302         int ret = 0;
 303
 304         pr_debug("on: %d\n", on);
 305
 306         if (on) {
 307                 ret = pm_runtime_resume_and_get(&is->pdev->dev);
 308                 if (ret < 0)
 309                         return ret;
 310
 311                 set_bit(IS_ST_PWR_ON, &is->state);
 312
 313                 ret = fimc_is_start_firmware(is);
 314                 if (ret < 0) {
 315                         v4l2_err(sd, "firmware booting failed\n");
 316                         pm_runtime_put(&is->pdev->dev);
 317                         return ret;
 318                 }
 319                 set_bit(IS_ST_PWR_SUBIP_ON, &is->state);
 320
 321                 ret = fimc_is_hw_initialize(is);
 322         } else {
 323                 /* Close sensor */
 324                 if (!test_bit(IS_ST_PWR_ON, &is->state)) {
 325                         fimc_is_hw_close_sensor(is, 0);
 326
 327                         ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
 328                                                  FIMC_IS_CONFIG_TIMEOUT);
 329                         if (ret < 0) {
 330                                 v4l2_err(sd, "sensor close timeout\n");
 331                                 return ret;
 332                         }
 333                 }
 334
 335                 /* SUB IP power off */
 336                 if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
 337                         fimc_is_hw_subip_power_off(is);
 338                         ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
 339                                                  FIMC_IS_CONFIG_TIMEOUT);
 340                         if (ret < 0) {
 341                                 v4l2_err(sd, "sub-IP power off timeout\n");
 342                                 return ret;
 343                         }
 344                 }
 345
 346                 fimc_is_cpu_set_power(is, 0);
 347                 pm_runtime_put_sync(&is->pdev->dev);
 348
 349                 clear_bit(IS_ST_PWR_ON, &is->state);
 350                 clear_bit(IS_ST_INIT_DONE, &is->state);
 351                 is->state = 0;
 352                 is->config[is->config_index].p_region_index[0] = 0;
 353                 is->config[is->config_index].p_region_index[1] = 0;
 354                 set_bit(IS_ST_IDLE, &is->state);
 355                 wmb();
 356         }
 357
 358         return ret;
 359 }
 360
 361 static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
 362                                 struct v4l2_subdev_fh *fh)
 363 {
 364         struct v4l2_mbus_framefmt *format;
 365         struct v4l2_mbus_framefmt fmt = {
 366                 .colorspace = V4L2_COLORSPACE_SRGB,
 367                 .code = fimc_isp_formats[0].mbus_code,
 368                 .width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH,
 369                 .height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT,
 370                 .field = V4L2_FIELD_NONE,
 371         };
 372
 373         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SINK);
 374         *format = fmt;
 375
 376         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SRC_FIFO);
 377         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 378         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 379         *format = fmt;
 380
 381         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SRC_DMA);
 382         *format = fmt;
 383
 384         return 0;
 385 }
 386
 387 static int fimc_isp_subdev_registered(struct v4l2_subdev *sd)
 388 {
 389         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 390         int ret;
 391
 392         /* Use pipeline object allocated by the media device. */
 393         isp->video_capture.ve.pipe = v4l2_get_subdev_hostdata(sd);
 394
 395         ret = fimc_isp_video_device_register(isp, sd->v4l2_dev,
 396                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 397         if (ret < 0)
 398                 isp->video_capture.ve.pipe = NULL;
 399
 400         return ret;
 401 }
 402
 403 static void fimc_isp_subdev_unregistered(struct v4l2_subdev *sd)
 404 {
 405         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 406
 407         fimc_isp_video_device_unregister(isp,
 408                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 409 }
 410
 411 static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
 412         .registered = fimc_isp_subdev_registered,
 413         .unregistered = fimc_isp_subdev_unregistered,
 414         .open = fimc_isp_subdev_open,
 415 };
 416
 417 static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
 418         .enum_mbus_code = fimc_is_subdev_enum_mbus_code,
 419         .get_fmt = fimc_isp_subdev_get_fmt,
 420         .set_fmt = fimc_isp_subdev_set_fmt,
 421 };
 422
 423 static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
 424         .s_stream = fimc_isp_subdev_s_stream,
 425 };
 426
 427 static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
 428         .s_power = fimc_isp_subdev_s_power,
 429 };
 430
 431 static const struct v4l2_subdev_ops fimc_is_subdev_ops = {
 432         .core = &fimc_is_core_ops,
 433         .video = &fimc_is_subdev_video_ops,
 434         .pad = &fimc_is_subdev_pad_ops,
 435 };
 436
 437 static int __ctrl_set_white_balance(struct fimc_is *is, int value)
 438 {
 439         switch (value) {
 440         case V4L2_WHITE_BALANCE_AUTO:
 441                 __is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
 442                 break;
 443         case V4L2_WHITE_BALANCE_DAYLIGHT:
 444                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 445                                         ISP_AWB_ILLUMINATION_DAYLIGHT);
 446                 break;
 447         case V4L2_WHITE_BALANCE_CLOUDY:
 448                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 449                                         ISP_AWB_ILLUMINATION_CLOUDY);
 450                 break;
 451         case V4L2_WHITE_BALANCE_INCANDESCENT:
 452                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 453                                         ISP_AWB_ILLUMINATION_TUNGSTEN);
 454                 break;
 455         case V4L2_WHITE_BALANCE_FLUORESCENT:
 456                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 457                                         ISP_AWB_ILLUMINATION_FLUORESCENT);
 458                 break;
 459         default:
 460                 return -EINVAL;
 461         }
 462
 463         return 0;
 464 }
 465
 466 static int __ctrl_set_aewb_lock(struct fimc_is *is,
 467                                       struct v4l2_ctrl *ctrl)
 468 {
 469         bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
 470         bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
 471         struct isp_param *isp = &is->is_p_region->parameter.isp;
 472         int cmd, ret;
 473
 474         cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 475         isp->aa.cmd = cmd;
 476         isp->aa.target = ISP_AA_TARGET_AE;
 477         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 478         is->af.ae_lock_state = ae_lock;
 479         wmb();
 480
 481         ret = fimc_is_itf_s_param(is, false);
 482         if (ret < 0)
 483                 return ret;
 484
 485         cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 486         isp->aa.cmd = cmd;
 487         isp->aa.target = ISP_AA_TARGET_AE;
 488         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 489         is->af.awb_lock_state = awb_lock;
 490         wmb();
 491
 492         return fimc_is_itf_s_param(is, false);
 493 }
 494
 495 /* Supported manual ISO values */
 496 static const s64 iso_qmenu[] = {
 497         50, 100, 200, 400, 800,
 498 };
 499
 500 static int __ctrl_set_iso(struct fimc_is *is, int value)
 501 {
 502         unsigned int idx, iso;
 503
 504         if (value == V4L2_ISO_SENSITIVITY_AUTO) {
 505                 __is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
 506                 return 0;
 507         }
 508         idx = is->isp.ctrls.iso->val;
 509         if (idx >= ARRAY_SIZE(iso_qmenu))
 510                 return -EINVAL;
 511
 512         iso = iso_qmenu[idx];
 513         __is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
 514         return 0;
 515 }
 516
 517 static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 518 {
 519         unsigned int val;
 520
 521         switch (value) {
 522         case V4L2_EXPOSURE_METERING_AVERAGE:
 523                 val = ISP_METERING_COMMAND_AVERAGE;
 524                 break;
 525         case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
 526                 val = ISP_METERING_COMMAND_CENTER;
 527                 break;
 528         case V4L2_EXPOSURE_METERING_SPOT:
 529                 val = ISP_METERING_COMMAND_SPOT;
 530                 break;
 531         case V4L2_EXPOSURE_METERING_MATRIX:
 532                 val = ISP_METERING_COMMAND_MATRIX;
 533                 break;
 534         default:
 535                 return -EINVAL;
 536         }
 537
 538         __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 539         return 0;
 540 }
 541
 542 static int __ctrl_set_afc(struct fimc_is *is, int value)
 543 {
 544         switch (value) {
 545         case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
 546                 __is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
 547                 break;
 548         case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
 549                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
 550                 break;
 551         case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
 552                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
 553                 break;
 554         case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
 555                 __is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
 556                 break;
 557         default:
 558                 return -EINVAL;
 559         }
 560
 561         return 0;
 562 }
 563
 564 static int __ctrl_set_image_effect(struct fimc_is *is, int value)
 565 {
 566         static const u8 effects[][2] = {
 567                 { V4L2_COLORFX_NONE,     ISP_IMAGE_EFFECT_DISABLE },
 568                 { V4L2_COLORFX_BW,       ISP_IMAGE_EFFECT_MONOCHROME },
 569                 { V4L2_COLORFX_SEPIA,    ISP_IMAGE_EFFECT_SEPIA },
 570                 { V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
 571                 { 16 /* TODO */,         ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
 572         };
 573         int i;
 574
 575         for (i = 0; i < ARRAY_SIZE(effects); i++) {
 576                 if (effects[i][0] != value)
 577                         continue;
 578
 579                 __is_set_isp_effect(is, effects[i][1]);
 580                 return 0;
 581         }
 582
 583         return -EINVAL;
 584 }
 585
 586 static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
 587 {
 588         struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
 589         struct fimc_is *is = fimc_isp_to_is(isp);
 590         bool set_param = true;
 591         int ret = 0;
 592
 593         switch (ctrl->id) {
 594         case V4L2_CID_CONTRAST:
 595                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
 596                                     ctrl->val);
 597                 break;
 598
 599         case V4L2_CID_SATURATION:
 600                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
 601                                     ctrl->val);
 602                 break;
 603
 604         case V4L2_CID_SHARPNESS:
 605                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
 606                                     ctrl->val);
 607                 break;
 608
 609         case V4L2_CID_EXPOSURE_ABSOLUTE:
 610                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
 611                                     ctrl->val);
 612                 break;
 613
 614         case V4L2_CID_BRIGHTNESS:
 615                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
 616                                     ctrl->val);
 617                 break;
 618
 619         case V4L2_CID_HUE:
 620                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
 621                                     ctrl->val);
 622                 break;
 623
 624         case V4L2_CID_EXPOSURE_METERING:
 625                 ret = __ctrl_set_metering(is, ctrl->val);
 626                 break;
 627
 628         case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 629                 ret = __ctrl_set_white_balance(is, ctrl->val);
 630                 break;
 631
 632         case V4L2_CID_3A_LOCK:
 633                 ret = __ctrl_set_aewb_lock(is, ctrl);
 634                 set_param = false;
 635                 break;
 636
 637         case V4L2_CID_ISO_SENSITIVITY_AUTO:
 638                 ret = __ctrl_set_iso(is, ctrl->val);
 639                 break;
 640
 641         case V4L2_CID_POWER_LINE_FREQUENCY:
 642                 ret = __ctrl_set_afc(is, ctrl->val);
 643                 break;
 644
 645         case V4L2_CID_COLORFX:
 646                 __ctrl_set_image_effect(is, ctrl->val);
 647                 break;
 648
 649         default:
 650                 ret = -EINVAL;
 651                 break;
 652         }
 653
 654         if (ret < 0) {
 655                 v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
 656                                                 ctrl->name, ctrl->val);
 657                 return ret;
 658         }
 659
 660         if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
 661                 return fimc_is_itf_s_param(is, true);
 662
 663         return 0;
 664 }
 665
 666 static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
 667         .s_ctrl = fimc_is_s_ctrl,
 668 };
 669
 670 static void __isp_subdev_set_default_format(struct fimc_isp *isp)
 671 {
 672         struct fimc_is *is = fimc_isp_to_is(isp);
 673
 674         isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
 675                                 FIMC_ISP_CAC_MARGIN_WIDTH;
 676         isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
 677                                 FIMC_ISP_CAC_MARGIN_HEIGHT;
 678         isp->sink_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 679
 680         isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 681         isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 682         isp->src_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 683         __is_set_frame_size(is, &isp->src_fmt);
 684 }
 685
 686 int fimc_isp_subdev_create(struct fimc_isp *isp)
 687 {
 688         const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
 689         struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
 690         struct v4l2_subdev *sd = &isp->subdev;
 691         struct fimc_isp_ctrls *ctrls = &isp->ctrls;
 692         int ret;
 693
 694         mutex_init(&isp->subdev_lock);
 695
 696         v4l2_subdev_init(sd, &fimc_is_subdev_ops);
 697
 698         sd->owner = THIS_MODULE;
 699         sd->grp_id = GRP_ID_FIMC_IS;
 700         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 701         snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
 702
 703         sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
 704         isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 705         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 706         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
 707         ret = media_entity_pads_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 708                                 isp->subdev_pads);
 709         if (ret)
 710                 return ret;
 711
 712         v4l2_ctrl_handler_init(handler, 20);
 713
 714         ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
 715                                                 -2, 2, 1, 0);
 716         ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
 717                                                 -4, 4, 1, 0);
 718         ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
 719                                                 -2, 2, 1, 0);
 720         ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
 721                                                 -2, 2, 1, 0);
 722         ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
 723                                                 -2, 2, 1, 0);
 724
 725         ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
 726                                         V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
 727                                         8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
 728
 729         ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
 730                                         V4L2_CID_EXPOSURE_ABSOLUTE,
 731                                         -4, 4, 1, 0);
 732
 733         ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
 734                                         V4L2_CID_EXPOSURE_METERING, 3,
 735                                         ~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
 736
 737         v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
 738                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
 739                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
 740         /* ISO sensitivity */
 741         ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
 742                         V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
 743                         V4L2_ISO_SENSITIVITY_AUTO);
 744
 745         ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
 746                         V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
 747                         ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
 748
 749         ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
 750                                         V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
 751
 752         /* TODO: Add support for NEGATIVE_COLOR option */
 753         ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
 754                         V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
 755
 756         if (handler->error) {
 757                 media_entity_cleanup(&sd->entity);
 758                 return handler->error;
 759         }
 760
 761         v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
 762                         V4L2_ISO_SENSITIVITY_MANUAL, false);
 763
 764         sd->ctrl_handler = handler;
 765         sd->internal_ops = &fimc_is_subdev_internal_ops;
 766         sd->entity.ops = &fimc_is_subdev_media_ops;
 767         v4l2_set_subdevdata(sd, isp);
 768
 769         __isp_subdev_set_default_format(isp);
 770
 771         return 0;
 772 }
 773
 774 void fimc_isp_subdev_destroy(struct fimc_isp *isp)
 775 {
 776         struct v4l2_subdev *sd = &isp->subdev;
 777
 778         v4l2_device_unregister_subdev(sd);
 779         media_entity_cleanup(&sd->entity);
 780         v4l2_ctrl_handler_free(&isp->ctrls.handler);
 781         v4l2_set_subdevdata(sd, NULL);
 782 }