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                 .name           = "RAW8 (GRBG)",
  37                 .fourcc         = V4L2_PIX_FMT_SGRBG8,
  38                 .depth          = { 8 },
  39                 .color          = FIMC_FMT_RAW8,
  40                 .memplanes      = 1,
  41                 .mbus_code      = MEDIA_BUS_FMT_SGRBG8_1X8,
  42         }, {
  43                 .name           = "RAW10 (GRBG)",
  44                 .fourcc         = V4L2_PIX_FMT_SGRBG10,
  45                 .depth          = { 10 },
  46                 .color          = FIMC_FMT_RAW10,
  47                 .memplanes      = 1,
  48                 .mbus_code      = MEDIA_BUS_FMT_SGRBG10_1X10,
  49         }, {
  50                 .name           = "RAW12 (GRBG)",
  51                 .fourcc         = V4L2_PIX_FMT_SGRBG12,
  52                 .depth          = { 12 },
  53                 .color          = FIMC_FMT_RAW12,
  54                 .memplanes      = 1,
  55                 .mbus_code      = MEDIA_BUS_FMT_SGRBG12_1X12,
  56         },
  57 };
  58
  59 /**
  60  * fimc_isp_find_format - lookup color format by fourcc or media bus code
  61  * @pixelformat: fourcc to match, ignored if null
  62  * @mbus_code: media bus code to match, ignored if null
  63  * @index: index to the fimc_isp_formats array, ignored if negative
  64  */
  65 const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
  66                                         const u32 *mbus_code, int index)
  67 {
  68         const struct fimc_fmt *fmt, *def_fmt = NULL;
  69         unsigned int i;
  70         int id = 0;
  71
  72         if (index >= (int)ARRAY_SIZE(fimc_isp_formats))
  73                 return NULL;
  74
  75         for (i = 0; i < ARRAY_SIZE(fimc_isp_formats); ++i) {
  76                 fmt = &fimc_isp_formats[i];
  77                 if (pixelformat && fmt->fourcc == *pixelformat)
  78                         return fmt;
  79                 if (mbus_code && fmt->mbus_code == *mbus_code)
  80                         return fmt;
  81                 if (index == id)
  82                         def_fmt = fmt;
  83                 id++;
  84         }
  85         return def_fmt;
  86 }
  87
  88 void fimc_isp_irq_handler(struct fimc_is *is)
  89 {
  90         is->i2h_cmd.args[0] = mcuctl_read(is, MCUCTL_REG_ISSR(20));
  91         is->i2h_cmd.args[1] = mcuctl_read(is, MCUCTL_REG_ISSR(21));
  92
  93         fimc_is_fw_clear_irq1(is, FIMC_IS_INT_FRAME_DONE_ISP);
  94         fimc_isp_video_irq_handler(is);
  95
  96         wake_up(&is->irq_queue);
  97 }
  98
  99 /* Capture subdev media entity operations */
 100 static int fimc_is_link_setup(struct media_entity *entity,
 101                                 const struct media_pad *local,
 102                                 const struct media_pad *remote, u32 flags)
 103 {
 104         return 0;
 105 }
 106
 107 static const struct media_entity_operations fimc_is_subdev_media_ops = {
 108         .link_setup = fimc_is_link_setup,
 109 };
 110
 111 static int fimc_is_subdev_enum_mbus_code(struct v4l2_subdev *sd,
 112                                 struct v4l2_subdev_pad_config *cfg,
 113                                 struct v4l2_subdev_mbus_code_enum *code)
 114 {
 115         const struct fimc_fmt *fmt;
 116
 117         fmt = fimc_isp_find_format(NULL, NULL, code->index);
 118         if (!fmt)
 119                 return -EINVAL;
 120         code->code = fmt->mbus_code;
 121         return 0;
 122 }
 123
 124 static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
 125                                    struct v4l2_subdev_pad_config *cfg,
 126                                    struct v4l2_subdev_format *fmt)
 127 {
 128         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 129         struct v4l2_mbus_framefmt *mf = &fmt->format;
 130
 131         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 132                 *mf = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
 133                 return 0;
 134         }
 135
 136         mf->colorspace = V4L2_COLORSPACE_SRGB;
 137
 138         mutex_lock(&isp->subdev_lock);
 139
 140         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 141                 /* ISP OTF input image format */
 142                 *mf = isp->sink_fmt;
 143         } else {
 144                 /* ISP OTF output image format */
 145                 *mf = isp->src_fmt;
 146
 147                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 148                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 149                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 150                 }
 151         }
 152
 153         mutex_unlock(&isp->subdev_lock);
 154
 155         isp_dbg(1, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n", __func__,
 156                 fmt->pad, mf->code, mf->width, mf->height);
 157
 158         return 0;
 159 }
 160
 161 static void __isp_subdev_try_format(struct fimc_isp *isp,
 162                                     struct v4l2_subdev_pad_config *cfg,
 163                                     struct v4l2_subdev_format *fmt)
 164 {
 165         struct v4l2_mbus_framefmt *mf = &fmt->format;
 166         struct v4l2_mbus_framefmt *format;
 167
 168         mf->colorspace = V4L2_COLORSPACE_SRGB;
 169
 170         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 171                 v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
 172                                 FIMC_ISP_SINK_WIDTH_MAX, 0,
 173                                 &mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
 174                                 FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
 175                 mf->code = MEDIA_BUS_FMT_SGRBG10_1X10;
 176         } else {
 177                 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
 178                         format = v4l2_subdev_get_try_format(&isp->subdev, cfg,
 179                                                 FIMC_ISP_SD_PAD_SINK);
 180                 else
 181                         format = &isp->sink_fmt;
 182
 183                 /* Allow changing format only on sink pad */
 184                 mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
 185                 mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 186
 187                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 188                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 189                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 190                 } else {
 191                         mf->code = format->code;
 192                 }
 193         }
 194 }
 195
 196 static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
 197                                    struct v4l2_subdev_pad_config *cfg,
 198                                    struct v4l2_subdev_format *fmt)
 199 {
 200         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 201         struct fimc_is *is = fimc_isp_to_is(isp);
 202         struct v4l2_mbus_framefmt *mf = &fmt->format;
 203         int ret = 0;
 204
 205         isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 206                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 207
 208         mutex_lock(&isp->subdev_lock);
 209         __isp_subdev_try_format(isp, cfg, fmt);
 210
 211         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 212                 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
 213                 *mf = fmt->format;
 214
 215                 /* Propagate format to the source pads */
 216                 if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 217                         struct v4l2_subdev_format format = *fmt;
 218                         unsigned int pad;
 219
 220                         for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
 221                                         pad < FIMC_ISP_SD_PADS_NUM; pad++) {
 222                                 format.pad = pad;
 223                                 __isp_subdev_try_format(isp, cfg, &format);
 224                                 mf = v4l2_subdev_get_try_format(sd, cfg, pad);
 225                                 *mf = format.format;
 226                         }
 227                 }
 228         } else {
 229                 if (sd->entity.stream_count == 0) {
 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, cfg, &format);
 237
 238                                 isp->src_fmt = format.format;
 239                                 __is_set_frame_size(is, &isp->src_fmt);
 240                         } else {
 241                                 isp->src_fmt = *mf;
 242                         }
 243                 } else {
 244                         ret = -EBUSY;
 245                 }
 246         }
 247
 248         mutex_unlock(&isp->subdev_lock);
 249         return ret;
 250 }
 251
 252 static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
 253 {
 254         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 255         struct fimc_is *is = fimc_isp_to_is(isp);
 256         int ret;
 257
 258         isp_dbg(1, sd, "%s: on: %d\n", __func__, on);
 259
 260         if (!test_bit(IS_ST_INIT_DONE, &is->state))
 261                 return -EBUSY;
 262
 263         fimc_is_mem_barrier();
 264
 265         if (on) {
 266                 if (__get_pending_param_count(is)) {
 267                         ret = fimc_is_itf_s_param(is, true);
 268                         if (ret < 0)
 269                                 return ret;
 270                 }
 271
 272                 isp_dbg(1, sd, "changing mode to %d\n", is->config_index);
 273
 274                 ret = fimc_is_itf_mode_change(is);
 275                 if (ret)
 276                         return -EINVAL;
 277
 278                 clear_bit(IS_ST_STREAM_ON, &is->state);
 279                 fimc_is_hw_stream_on(is);
 280                 ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
 281                                          FIMC_IS_CONFIG_TIMEOUT);
 282                 if (ret < 0) {
 283                         v4l2_err(sd, "stream on timeout\n");
 284                         return ret;
 285                 }
 286         } else {
 287                 clear_bit(IS_ST_STREAM_OFF, &is->state);
 288                 fimc_is_hw_stream_off(is);
 289                 ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
 290                                          FIMC_IS_CONFIG_TIMEOUT);
 291                 if (ret < 0) {
 292                         v4l2_err(sd, "stream off timeout\n");
 293                         return ret;
 294                 }
 295                 is->setfile.sub_index = 0;
 296         }
 297
 298         return 0;
 299 }
 300
 301 static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
 302 {
 303         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 304         struct fimc_is *is = fimc_isp_to_is(isp);
 305         int ret = 0;
 306
 307         pr_debug("on: %d\n", on);
 308
 309         if (on) {
 310                 ret = pm_runtime_get_sync(&is->pdev->dev);
 311                 if (ret < 0)
 312                         return ret;
 313                 set_bit(IS_ST_PWR_ON, &is->state);
 314
 315                 ret = fimc_is_start_firmware(is);
 316                 if (ret < 0) {
 317                         v4l2_err(sd, "firmware booting failed\n");
 318                         pm_runtime_put(&is->pdev->dev);
 319                         return ret;
 320                 }
 321                 set_bit(IS_ST_PWR_SUBIP_ON, &is->state);
 322
 323                 ret = fimc_is_hw_initialize(is);
 324         } else {
 325                 /* Close sensor */
 326                 if (!test_bit(IS_ST_PWR_ON, &is->state)) {
 327                         fimc_is_hw_close_sensor(is, 0);
 328
 329                         ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
 330                                                  FIMC_IS_CONFIG_TIMEOUT);
 331                         if (ret < 0) {
 332                                 v4l2_err(sd, "sensor close timeout\n");
 333                                 return ret;
 334                         }
 335                 }
 336
 337                 /* SUB IP power off */
 338                 if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
 339                         fimc_is_hw_subip_power_off(is);
 340                         ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
 341                                                  FIMC_IS_CONFIG_TIMEOUT);
 342                         if (ret < 0) {
 343                                 v4l2_err(sd, "sub-IP power off timeout\n");
 344                                 return ret;
 345                         }
 346                 }
 347
 348                 fimc_is_cpu_set_power(is, 0);
 349                 pm_runtime_put_sync(&is->pdev->dev);
 350
 351                 clear_bit(IS_ST_PWR_ON, &is->state);
 352                 clear_bit(IS_ST_INIT_DONE, &is->state);
 353                 is->state = 0;
 354                 is->config[is->config_index].p_region_index[0] = 0;
 355                 is->config[is->config_index].p_region_index[1] = 0;
 356                 set_bit(IS_ST_IDLE, &is->state);
 357                 wmb();
 358         }
 359
 360         return ret;
 361 }
 362
 363 static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
 364                                 struct v4l2_subdev_fh *fh)
 365 {
 366         struct v4l2_mbus_framefmt *format;
 367         struct v4l2_mbus_framefmt fmt = {
 368                 .colorspace = V4L2_COLORSPACE_SRGB,
 369                 .code = fimc_isp_formats[0].mbus_code,
 370                 .width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH,
 371                 .height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT,
 372                 .field = V4L2_FIELD_NONE,
 373         };
 374
 375         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SINK);
 376         *format = fmt;
 377
 378         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SRC_FIFO);
 379         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 380         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 381         *format = fmt;
 382
 383         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SRC_DMA);
 384         *format = fmt;
 385
 386         return 0;
 387 }
 388
 389 static int fimc_isp_subdev_registered(struct v4l2_subdev *sd)
 390 {
 391         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 392         int ret;
 393
 394         /* Use pipeline object allocated by the media device. */
 395         isp->video_capture.ve.pipe = v4l2_get_subdev_hostdata(sd);
 396
 397         ret = fimc_isp_video_device_register(isp, sd->v4l2_dev,
 398                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 399         if (ret < 0)
 400                 isp->video_capture.ve.pipe = NULL;
 401
 402         return ret;
 403 }
 404
 405 static void fimc_isp_subdev_unregistered(struct v4l2_subdev *sd)
 406 {
 407         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 408
 409         fimc_isp_video_device_unregister(isp,
 410                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 411 }
 412
 413 static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
 414         .registered = fimc_isp_subdev_registered,
 415         .unregistered = fimc_isp_subdev_unregistered,
 416         .open = fimc_isp_subdev_open,
 417 };
 418
 419 static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
 420         .enum_mbus_code = fimc_is_subdev_enum_mbus_code,
 421         .get_fmt = fimc_isp_subdev_get_fmt,
 422         .set_fmt = fimc_isp_subdev_set_fmt,
 423 };
 424
 425 static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
 426         .s_stream = fimc_isp_subdev_s_stream,
 427 };
 428
 429 static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
 430         .s_power = fimc_isp_subdev_s_power,
 431 };
 432
 433 static const struct v4l2_subdev_ops fimc_is_subdev_ops = {
 434         .core = &fimc_is_core_ops,
 435         .video = &fimc_is_subdev_video_ops,
 436         .pad = &fimc_is_subdev_pad_ops,
 437 };
 438
 439 static int __ctrl_set_white_balance(struct fimc_is *is, int value)
 440 {
 441         switch (value) {
 442         case V4L2_WHITE_BALANCE_AUTO:
 443                 __is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
 444                 break;
 445         case V4L2_WHITE_BALANCE_DAYLIGHT:
 446                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 447                                         ISP_AWB_ILLUMINATION_DAYLIGHT);
 448                 break;
 449         case V4L2_WHITE_BALANCE_CLOUDY:
 450                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 451                                         ISP_AWB_ILLUMINATION_CLOUDY);
 452                 break;
 453         case V4L2_WHITE_BALANCE_INCANDESCENT:
 454                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 455                                         ISP_AWB_ILLUMINATION_TUNGSTEN);
 456                 break;
 457         case V4L2_WHITE_BALANCE_FLUORESCENT:
 458                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 459                                         ISP_AWB_ILLUMINATION_FLUORESCENT);
 460                 break;
 461         default:
 462                 return -EINVAL;
 463         }
 464
 465         return 0;
 466 }
 467
 468 static int __ctrl_set_aewb_lock(struct fimc_is *is,
 469                                       struct v4l2_ctrl *ctrl)
 470 {
 471         bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
 472         bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
 473         struct isp_param *isp = &is->is_p_region->parameter.isp;
 474         int cmd, ret;
 475
 476         cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 477         isp->aa.cmd = cmd;
 478         isp->aa.target = ISP_AA_TARGET_AE;
 479         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 480         is->af.ae_lock_state = ae_lock;
 481         wmb();
 482
 483         ret = fimc_is_itf_s_param(is, false);
 484         if (ret < 0)
 485                 return ret;
 486
 487         cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 488         isp->aa.cmd = cmd;
 489         isp->aa.target = ISP_AA_TARGET_AE;
 490         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 491         is->af.awb_lock_state = awb_lock;
 492         wmb();
 493
 494         return fimc_is_itf_s_param(is, false);
 495 }
 496
 497 /* Supported manual ISO values */
 498 static const s64 iso_qmenu[] = {
 499         50, 100, 200, 400, 800,
 500 };
 501
 502 static int __ctrl_set_iso(struct fimc_is *is, int value)
 503 {
 504         unsigned int idx, iso;
 505
 506         if (value == V4L2_ISO_SENSITIVITY_AUTO) {
 507                 __is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
 508                 return 0;
 509         }
 510         idx = is->isp.ctrls.iso->val;
 511         if (idx >= ARRAY_SIZE(iso_qmenu))
 512                 return -EINVAL;
 513
 514         iso = iso_qmenu[idx];
 515         __is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
 516         return 0;
 517 }
 518
 519 static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 520 {
 521         unsigned int val;
 522
 523         switch (value) {
 524         case V4L2_EXPOSURE_METERING_AVERAGE:
 525                 val = ISP_METERING_COMMAND_AVERAGE;
 526                 break;
 527         case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
 528                 val = ISP_METERING_COMMAND_CENTER;
 529                 break;
 530         case V4L2_EXPOSURE_METERING_SPOT:
 531                 val = ISP_METERING_COMMAND_SPOT;
 532                 break;
 533         case V4L2_EXPOSURE_METERING_MATRIX:
 534                 val = ISP_METERING_COMMAND_MATRIX;
 535                 break;
 536         default:
 537                 return -EINVAL;
 538         }
 539
 540         __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 541         return 0;
 542 }
 543
 544 static int __ctrl_set_afc(struct fimc_is *is, int value)
 545 {
 546         switch (value) {
 547         case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
 548                 __is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
 549                 break;
 550         case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
 551                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
 552                 break;
 553         case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
 554                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
 555                 break;
 556         case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
 557                 __is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
 558                 break;
 559         default:
 560                 return -EINVAL;
 561         }
 562
 563         return 0;
 564 }
 565
 566 static int __ctrl_set_image_effect(struct fimc_is *is, int value)
 567 {
 568         static const u8 effects[][2] = {
 569                 { V4L2_COLORFX_NONE,     ISP_IMAGE_EFFECT_DISABLE },
 570                 { V4L2_COLORFX_BW,       ISP_IMAGE_EFFECT_MONOCHROME },
 571                 { V4L2_COLORFX_SEPIA,    ISP_IMAGE_EFFECT_SEPIA },
 572                 { V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
 573                 { 16 /* TODO */,         ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
 574         };
 575         int i;
 576
 577         for (i = 0; i < ARRAY_SIZE(effects); i++) {
 578                 if (effects[i][0] != value)
 579                         continue;
 580
 581                 __is_set_isp_effect(is, effects[i][1]);
 582                 return 0;
 583         }
 584
 585         return -EINVAL;
 586 }
 587
 588 static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
 589 {
 590         struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
 591         struct fimc_is *is = fimc_isp_to_is(isp);
 592         bool set_param = true;
 593         int ret = 0;
 594
 595         switch (ctrl->id) {
 596         case V4L2_CID_CONTRAST:
 597                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
 598                                     ctrl->val);
 599                 break;
 600
 601         case V4L2_CID_SATURATION:
 602                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
 603                                     ctrl->val);
 604                 break;
 605
 606         case V4L2_CID_SHARPNESS:
 607                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
 608                                     ctrl->val);
 609                 break;
 610
 611         case V4L2_CID_EXPOSURE_ABSOLUTE:
 612                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
 613                                     ctrl->val);
 614                 break;
 615
 616         case V4L2_CID_BRIGHTNESS:
 617                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
 618                                     ctrl->val);
 619                 break;
 620
 621         case V4L2_CID_HUE:
 622                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
 623                                     ctrl->val);
 624                 break;
 625
 626         case V4L2_CID_EXPOSURE_METERING:
 627                 ret = __ctrl_set_metering(is, ctrl->val);
 628                 break;
 629
 630         case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 631                 ret = __ctrl_set_white_balance(is, ctrl->val);
 632                 break;
 633
 634         case V4L2_CID_3A_LOCK:
 635                 ret = __ctrl_set_aewb_lock(is, ctrl);
 636                 set_param = false;
 637                 break;
 638
 639         case V4L2_CID_ISO_SENSITIVITY_AUTO:
 640                 ret = __ctrl_set_iso(is, ctrl->val);
 641                 break;
 642
 643         case V4L2_CID_POWER_LINE_FREQUENCY:
 644                 ret = __ctrl_set_afc(is, ctrl->val);
 645                 break;
 646
 647         case V4L2_CID_COLORFX:
 648                 __ctrl_set_image_effect(is, ctrl->val);
 649                 break;
 650
 651         default:
 652                 ret = -EINVAL;
 653                 break;
 654         }
 655
 656         if (ret < 0) {
 657                 v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
 658                                                 ctrl->name, ctrl->val);
 659                 return ret;
 660         }
 661
 662         if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
 663                 return fimc_is_itf_s_param(is, true);
 664
 665         return 0;
 666 }
 667
 668 static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
 669         .s_ctrl = fimc_is_s_ctrl,
 670 };
 671
 672 static void __isp_subdev_set_default_format(struct fimc_isp *isp)
 673 {
 674         struct fimc_is *is = fimc_isp_to_is(isp);
 675
 676         isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
 677                                 FIMC_ISP_CAC_MARGIN_WIDTH;
 678         isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
 679                                 FIMC_ISP_CAC_MARGIN_HEIGHT;
 680         isp->sink_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 681
 682         isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 683         isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 684         isp->src_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 685         __is_set_frame_size(is, &isp->src_fmt);
 686 }
 687
 688 int fimc_isp_subdev_create(struct fimc_isp *isp)
 689 {
 690         const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
 691         struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
 692         struct v4l2_subdev *sd = &isp->subdev;
 693         struct fimc_isp_ctrls *ctrls = &isp->ctrls;
 694         int ret;
 695
 696         mutex_init(&isp->subdev_lock);
 697
 698         v4l2_subdev_init(sd, &fimc_is_subdev_ops);
 699
 700         sd->owner = THIS_MODULE;
 701         sd->grp_id = GRP_ID_FIMC_IS;
 702         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 703         snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
 704
 705         sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
 706         isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 707         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 708         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
 709         ret = media_entity_pads_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 710                                 isp->subdev_pads);
 711         if (ret)
 712                 return ret;
 713
 714         v4l2_ctrl_handler_init(handler, 20);
 715
 716         ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
 717                                                 -2, 2, 1, 0);
 718         ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
 719                                                 -4, 4, 1, 0);
 720         ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
 721                                                 -2, 2, 1, 0);
 722         ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
 723                                                 -2, 2, 1, 0);
 724         ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
 725                                                 -2, 2, 1, 0);
 726
 727         ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
 728                                         V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
 729                                         8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
 730
 731         ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
 732                                         V4L2_CID_EXPOSURE_ABSOLUTE,
 733                                         -4, 4, 1, 0);
 734
 735         ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
 736                                         V4L2_CID_EXPOSURE_METERING, 3,
 737                                         ~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
 738
 739         v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
 740                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
 741                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
 742         /* ISO sensitivity */
 743         ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
 744                         V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
 745                         V4L2_ISO_SENSITIVITY_AUTO);
 746
 747         ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
 748                         V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
 749                         ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
 750
 751         ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
 752                                         V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
 753
 754         /* TODO: Add support for NEGATIVE_COLOR option */
 755         ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
 756                         V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
 757
 758         if (handler->error) {
 759                 media_entity_cleanup(&sd->entity);
 760                 return handler->error;
 761         }
 762
 763         v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
 764                         V4L2_ISO_SENSITIVITY_MANUAL, false);
 765
 766         sd->ctrl_handler = handler;
 767         sd->internal_ops = &fimc_is_subdev_internal_ops;
 768         sd->entity.ops = &fimc_is_subdev_media_ops;
 769         v4l2_set_subdevdata(sd, isp);
 770
 771         __isp_subdev_set_default_format(isp);
 772
 773         return 0;
 774 }
 775
 776 void fimc_isp_subdev_destroy(struct fimc_isp *isp)
 777 {
 778         struct v4l2_subdev *sd = &isp->subdev;
 779
 780         v4l2_device_unregister_subdev(sd);
 781         media_entity_cleanup(&sd->entity);
 782         v4l2_ctrl_handler_free(&isp->ctrls.handler);
 783         v4l2_set_subdevdata(sd, NULL);
 784 }