drivers/media/platform/samsung/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_state *sd_state,
 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_state *sd_state,
 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, sd_state, 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_state *sd_state,
 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,
 176                                                             sd_state,
 177                                                             FIMC_ISP_SD_PAD_SINK);
 178                 else
 179                         format = &isp->sink_fmt;
 180
 181                 /* Allow changing format only on sink pad */
 182                 mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
 183                 mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 184
 185                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 186                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 187                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 188                 } else {
 189                         mf->code = format->code;
 190                 }
 191         }
 192 }
 193
 194 static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
 195                                    struct v4l2_subdev_state *sd_state,
 196                                    struct v4l2_subdev_format *fmt)
 197 {
 198         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 199         struct fimc_is *is = fimc_isp_to_is(isp);
 200         struct v4l2_mbus_framefmt *mf = &fmt->format;
 201         int ret = 0;
 202
 203         isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 204                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 205
 206         mutex_lock(&isp->subdev_lock);
 207         __isp_subdev_try_format(isp, sd_state, fmt);
 208
 209         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 210                 mf = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
 211                 *mf = fmt->format;
 212
 213                 /* Propagate format to the source pads */
 214                 if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 215                         struct v4l2_subdev_format format = *fmt;
 216                         unsigned int pad;
 217
 218                         for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
 219                                         pad < FIMC_ISP_SD_PADS_NUM; pad++) {
 220                                 format.pad = pad;
 221                                 __isp_subdev_try_format(isp, sd_state,
 222                                                         &format);
 223                                 mf = v4l2_subdev_get_try_format(sd, sd_state,
 224                                                                 pad);
 225                                 *mf = format.format;
 226                         }
 227                 }
 228         } else {
 229                 if (!media_entity_is_streaming(&sd->entity)) {
 230                         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 231                                 struct v4l2_subdev_format format = *fmt;
 232
 233                                 isp->sink_fmt = *mf;
 234
 235                                 format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
 236                                 __isp_subdev_try_format(isp, sd_state,
 237                                                         &format);
 238
 239                                 isp->src_fmt = format.format;
 240                                 __is_set_frame_size(is, &isp->src_fmt);
 241                         } else {
 242                                 isp->src_fmt = *mf;
 243                         }
 244                 } else {
 245                         ret = -EBUSY;
 246                 }
 247         }
 248
 249         mutex_unlock(&isp->subdev_lock);
 250         return ret;
 251 }
 252
 253 static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
 254 {
 255         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 256         struct fimc_is *is = fimc_isp_to_is(isp);
 257         int ret;
 258
 259         isp_dbg(1, sd, "%s: on: %d\n", __func__, on);
 260
 261         if (!test_bit(IS_ST_INIT_DONE, &is->state))
 262                 return -EBUSY;
 263
 264         fimc_is_mem_barrier();
 265
 266         if (on) {
 267                 if (__get_pending_param_count(is)) {
 268                         ret = fimc_is_itf_s_param(is, true);
 269                         if (ret < 0)
 270                                 return ret;
 271                 }
 272
 273                 isp_dbg(1, sd, "changing mode to %d\n", is->config_index);
 274
 275                 ret = fimc_is_itf_mode_change(is);
 276                 if (ret)
 277                         return -EINVAL;
 278
 279                 clear_bit(IS_ST_STREAM_ON, &is->state);
 280                 fimc_is_hw_stream_on(is);
 281                 ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
 282                                          FIMC_IS_CONFIG_TIMEOUT);
 283                 if (ret < 0) {
 284                         v4l2_err(sd, "stream on timeout\n");
 285                         return ret;
 286                 }
 287         } else {
 288                 clear_bit(IS_ST_STREAM_OFF, &is->state);
 289                 fimc_is_hw_stream_off(is);
 290                 ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
 291                                          FIMC_IS_CONFIG_TIMEOUT);
 292                 if (ret < 0) {
 293                         v4l2_err(sd, "stream off timeout\n");
 294                         return ret;
 295                 }
 296                 is->setfile.sub_index = 0;
 297         }
 298
 299         return 0;
 300 }
 301
 302 static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
 303 {
 304         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 305         struct fimc_is *is = fimc_isp_to_is(isp);
 306         int ret = 0;
 307
 308         pr_debug("on: %d\n", on);
 309
 310         if (on) {
 311                 ret = pm_runtime_resume_and_get(&is->pdev->dev);
 312                 if (ret < 0)
 313                         return ret;
 314
 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 *format;
 369         struct v4l2_mbus_framefmt fmt = {
 370                 .colorspace = V4L2_COLORSPACE_SRGB,
 371                 .code = fimc_isp_formats[0].mbus_code,
 372                 .width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH,
 373                 .height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT,
 374                 .field = V4L2_FIELD_NONE,
 375         };
 376
 377         format = v4l2_subdev_get_try_format(sd, fh->state,
 378                                             FIMC_ISP_SD_PAD_SINK);
 379         *format = fmt;
 380
 381         format = v4l2_subdev_get_try_format(sd, fh->state,
 382                                             FIMC_ISP_SD_PAD_SRC_FIFO);
 383         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 384         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 385         *format = fmt;
 386
 387         format = v4l2_subdev_get_try_format(sd, fh->state,
 388                                             FIMC_ISP_SD_PAD_SRC_DMA);
 389         *format = fmt;
 390
 391         return 0;
 392 }
 393
 394 static int fimc_isp_subdev_registered(struct v4l2_subdev *sd)
 395 {
 396         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 397         int ret;
 398
 399         /* Use pipeline object allocated by the media device. */
 400         isp->video_capture.ve.pipe = v4l2_get_subdev_hostdata(sd);
 401
 402         ret = fimc_isp_video_device_register(isp, sd->v4l2_dev,
 403                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 404         if (ret < 0)
 405                 isp->video_capture.ve.pipe = NULL;
 406
 407         return ret;
 408 }
 409
 410 static void fimc_isp_subdev_unregistered(struct v4l2_subdev *sd)
 411 {
 412         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 413
 414         fimc_isp_video_device_unregister(isp,
 415                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 416 }
 417
 418 static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
 419         .registered = fimc_isp_subdev_registered,
 420         .unregistered = fimc_isp_subdev_unregistered,
 421         .open = fimc_isp_subdev_open,
 422 };
 423
 424 static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
 425         .enum_mbus_code = fimc_is_subdev_enum_mbus_code,
 426         .get_fmt = fimc_isp_subdev_get_fmt,
 427         .set_fmt = fimc_isp_subdev_set_fmt,
 428 };
 429
 430 static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
 431         .s_stream = fimc_isp_subdev_s_stream,
 432 };
 433
 434 static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
 435         .s_power = fimc_isp_subdev_s_power,
 436 };
 437
 438 static const struct v4l2_subdev_ops fimc_is_subdev_ops = {
 439         .core = &fimc_is_core_ops,
 440         .video = &fimc_is_subdev_video_ops,
 441         .pad = &fimc_is_subdev_pad_ops,
 442 };
 443
 444 static int __ctrl_set_white_balance(struct fimc_is *is, int value)
 445 {
 446         switch (value) {
 447         case V4L2_WHITE_BALANCE_AUTO:
 448                 __is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
 449                 break;
 450         case V4L2_WHITE_BALANCE_DAYLIGHT:
 451                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 452                                         ISP_AWB_ILLUMINATION_DAYLIGHT);
 453                 break;
 454         case V4L2_WHITE_BALANCE_CLOUDY:
 455                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 456                                         ISP_AWB_ILLUMINATION_CLOUDY);
 457                 break;
 458         case V4L2_WHITE_BALANCE_INCANDESCENT:
 459                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 460                                         ISP_AWB_ILLUMINATION_TUNGSTEN);
 461                 break;
 462         case V4L2_WHITE_BALANCE_FLUORESCENT:
 463                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 464                                         ISP_AWB_ILLUMINATION_FLUORESCENT);
 465                 break;
 466         default:
 467                 return -EINVAL;
 468         }
 469
 470         return 0;
 471 }
 472
 473 static int __ctrl_set_aewb_lock(struct fimc_is *is,
 474                                       struct v4l2_ctrl *ctrl)
 475 {
 476         bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
 477         bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
 478         struct isp_param *isp = &is->is_p_region->parameter.isp;
 479         int cmd, ret;
 480
 481         cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 482         isp->aa.cmd = cmd;
 483         isp->aa.target = ISP_AA_TARGET_AE;
 484         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 485         is->af.ae_lock_state = ae_lock;
 486         wmb();
 487
 488         ret = fimc_is_itf_s_param(is, false);
 489         if (ret < 0)
 490                 return ret;
 491
 492         cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 493         isp->aa.cmd = cmd;
 494         isp->aa.target = ISP_AA_TARGET_AE;
 495         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 496         is->af.awb_lock_state = awb_lock;
 497         wmb();
 498
 499         return fimc_is_itf_s_param(is, false);
 500 }
 501
 502 /* Supported manual ISO values */
 503 static const s64 iso_qmenu[] = {
 504         50, 100, 200, 400, 800,
 505 };
 506
 507 static int __ctrl_set_iso(struct fimc_is *is, int value)
 508 {
 509         unsigned int idx, iso;
 510
 511         if (value == V4L2_ISO_SENSITIVITY_AUTO) {
 512                 __is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
 513                 return 0;
 514         }
 515         idx = is->isp.ctrls.iso->val;
 516         if (idx >= ARRAY_SIZE(iso_qmenu))
 517                 return -EINVAL;
 518
 519         iso = iso_qmenu[idx];
 520         __is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
 521         return 0;
 522 }
 523
 524 static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 525 {
 526         unsigned int val;
 527
 528         switch (value) {
 529         case V4L2_EXPOSURE_METERING_AVERAGE:
 530                 val = ISP_METERING_COMMAND_AVERAGE;
 531                 break;
 532         case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
 533                 val = ISP_METERING_COMMAND_CENTER;
 534                 break;
 535         case V4L2_EXPOSURE_METERING_SPOT:
 536                 val = ISP_METERING_COMMAND_SPOT;
 537                 break;
 538         case V4L2_EXPOSURE_METERING_MATRIX:
 539                 val = ISP_METERING_COMMAND_MATRIX;
 540                 break;
 541         default:
 542                 return -EINVAL;
 543         }
 544
 545         __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 546         return 0;
 547 }
 548
 549 static int __ctrl_set_afc(struct fimc_is *is, int value)
 550 {
 551         switch (value) {
 552         case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
 553                 __is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
 554                 break;
 555         case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
 556                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
 557                 break;
 558         case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
 559                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
 560                 break;
 561         case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
 562                 __is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
 563                 break;
 564         default:
 565                 return -EINVAL;
 566         }
 567
 568         return 0;
 569 }
 570
 571 static int __ctrl_set_image_effect(struct fimc_is *is, int value)
 572 {
 573         static const u8 effects[][2] = {
 574                 { V4L2_COLORFX_NONE,     ISP_IMAGE_EFFECT_DISABLE },
 575                 { V4L2_COLORFX_BW,       ISP_IMAGE_EFFECT_MONOCHROME },
 576                 { V4L2_COLORFX_SEPIA,    ISP_IMAGE_EFFECT_SEPIA },
 577                 { V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
 578                 { 16 /* TODO */,         ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
 579         };
 580         int i;
 581
 582         for (i = 0; i < ARRAY_SIZE(effects); i++) {
 583                 if (effects[i][0] != value)
 584                         continue;
 585
 586                 __is_set_isp_effect(is, effects[i][1]);
 587                 return 0;
 588         }
 589
 590         return -EINVAL;
 591 }
 592
 593 static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
 594 {
 595         struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
 596         struct fimc_is *is = fimc_isp_to_is(isp);
 597         bool set_param = true;
 598         int ret = 0;
 599
 600         switch (ctrl->id) {
 601         case V4L2_CID_CONTRAST:
 602                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
 603                                     ctrl->val);
 604                 break;
 605
 606         case V4L2_CID_SATURATION:
 607                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
 608                                     ctrl->val);
 609                 break;
 610
 611         case V4L2_CID_SHARPNESS:
 612                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
 613                                     ctrl->val);
 614                 break;
 615
 616         case V4L2_CID_EXPOSURE_ABSOLUTE:
 617                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
 618                                     ctrl->val);
 619                 break;
 620
 621         case V4L2_CID_BRIGHTNESS:
 622                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
 623                                     ctrl->val);
 624                 break;
 625
 626         case V4L2_CID_HUE:
 627                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
 628                                     ctrl->val);
 629                 break;
 630
 631         case V4L2_CID_EXPOSURE_METERING:
 632                 ret = __ctrl_set_metering(is, ctrl->val);
 633                 break;
 634
 635         case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 636                 ret = __ctrl_set_white_balance(is, ctrl->val);
 637                 break;
 638
 639         case V4L2_CID_3A_LOCK:
 640                 ret = __ctrl_set_aewb_lock(is, ctrl);
 641                 set_param = false;
 642                 break;
 643
 644         case V4L2_CID_ISO_SENSITIVITY_AUTO:
 645                 ret = __ctrl_set_iso(is, ctrl->val);
 646                 break;
 647
 648         case V4L2_CID_POWER_LINE_FREQUENCY:
 649                 ret = __ctrl_set_afc(is, ctrl->val);
 650                 break;
 651
 652         case V4L2_CID_COLORFX:
 653                 __ctrl_set_image_effect(is, ctrl->val);
 654                 break;
 655
 656         default:
 657                 ret = -EINVAL;
 658                 break;
 659         }
 660
 661         if (ret < 0) {
 662                 v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
 663                                                 ctrl->name, ctrl->val);
 664                 return ret;
 665         }
 666
 667         if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
 668                 return fimc_is_itf_s_param(is, true);
 669
 670         return 0;
 671 }
 672
 673 static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
 674         .s_ctrl = fimc_is_s_ctrl,
 675 };
 676
 677 static void __isp_subdev_set_default_format(struct fimc_isp *isp)
 678 {
 679         struct fimc_is *is = fimc_isp_to_is(isp);
 680
 681         isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
 682                                 FIMC_ISP_CAC_MARGIN_WIDTH;
 683         isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
 684                                 FIMC_ISP_CAC_MARGIN_HEIGHT;
 685         isp->sink_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 686
 687         isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 688         isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 689         isp->src_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 690         __is_set_frame_size(is, &isp->src_fmt);
 691 }
 692
 693 int fimc_isp_subdev_create(struct fimc_isp *isp)
 694 {
 695         const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
 696         struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
 697         struct v4l2_subdev *sd = &isp->subdev;
 698         struct fimc_isp_ctrls *ctrls = &isp->ctrls;
 699         int ret;
 700
 701         mutex_init(&isp->subdev_lock);
 702
 703         v4l2_subdev_init(sd, &fimc_is_subdev_ops);
 704
 705         sd->owner = THIS_MODULE;
 706         sd->grp_id = GRP_ID_FIMC_IS;
 707         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 708         snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
 709
 710         sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
 711         isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 712         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 713         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
 714         ret = media_entity_pads_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 715                                 isp->subdev_pads);
 716         if (ret)
 717                 return ret;
 718
 719         v4l2_ctrl_handler_init(handler, 20);
 720
 721         ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
 722                                                 -2, 2, 1, 0);
 723         ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
 724                                                 -4, 4, 1, 0);
 725         ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
 726                                                 -2, 2, 1, 0);
 727         ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
 728                                                 -2, 2, 1, 0);
 729         ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
 730                                                 -2, 2, 1, 0);
 731
 732         ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
 733                                         V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
 734                                         8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
 735
 736         ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
 737                                         V4L2_CID_EXPOSURE_ABSOLUTE,
 738                                         -4, 4, 1, 0);
 739
 740         ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
 741                                         V4L2_CID_EXPOSURE_METERING, 3,
 742                                         ~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
 743
 744         v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
 745                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
 746                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
 747         /* ISO sensitivity */
 748         ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
 749                         V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
 750                         V4L2_ISO_SENSITIVITY_AUTO);
 751
 752         ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
 753                         V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
 754                         ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
 755
 756         ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
 757                                         V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
 758
 759         /* TODO: Add support for NEGATIVE_COLOR option */
 760         ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
 761                         V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
 762
 763         if (handler->error) {
 764                 media_entity_cleanup(&sd->entity);
 765                 return handler->error;
 766         }
 767
 768         v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
 769                         V4L2_ISO_SENSITIVITY_MANUAL, false);
 770
 771         sd->ctrl_handler = handler;
 772         sd->internal_ops = &fimc_is_subdev_internal_ops;
 773         sd->entity.ops = &fimc_is_subdev_media_ops;
 774         v4l2_set_subdevdata(sd, isp);
 775
 776         __isp_subdev_set_default_format(isp);
 777
 778         return 0;
 779 }
 780
 781 void fimc_isp_subdev_destroy(struct fimc_isp *isp)
 782 {
 783         struct v4l2_subdev *sd = &isp->subdev;
 784
 785         v4l2_device_unregister_subdev(sd);
 786         media_entity_cleanup(&sd->entity);
 787         v4l2_ctrl_handler_free(&isp->ctrls.handler);
 788         v4l2_set_subdevdata(sd, NULL);
 789 }