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

   1 /*
   2  * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
   3  *
   4  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   5  *
   6  * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
   7  *          Younghwan Joo <yhwan.joo@samsung.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13 #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
  14
  15 #include <linux/device.h>
  16 #include <linux/errno.h>
  17 #include <linux/kernel.h>
  18 #include <linux/list.h>
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/printk.h>
  22 #include <linux/pm_runtime.h>
  23 #include <linux/slab.h>
  24 #include <linux/types.h>
  25 #include <media/v4l2-device.h>
  26
  27 #include "media-dev.h"
  28 #include "fimc-isp-video.h"
  29 #include "fimc-is-command.h"
  30 #include "fimc-is-param.h"
  31 #include "fimc-is-regs.h"
  32 #include "fimc-is.h"
  33
  34 int fimc_isp_debug;
  35 module_param_named(debug_isp, fimc_isp_debug, int, S_IRUGO | S_IWUSR);
  36
  37 static const struct fimc_fmt fimc_isp_formats[FIMC_ISP_NUM_FORMATS] = {
  38         {
  39                 .name           = "RAW8 (GRBG)",
  40                 .fourcc         = V4L2_PIX_FMT_SGRBG8,
  41                 .depth          = { 8 },
  42                 .color          = FIMC_FMT_RAW8,
  43                 .memplanes      = 1,
  44                 .mbus_code      = MEDIA_BUS_FMT_SGRBG8_1X8,
  45         }, {
  46                 .name           = "RAW10 (GRBG)",
  47                 .fourcc         = V4L2_PIX_FMT_SGRBG10,
  48                 .depth          = { 10 },
  49                 .color          = FIMC_FMT_RAW10,
  50                 .memplanes      = 1,
  51                 .mbus_code      = MEDIA_BUS_FMT_SGRBG10_1X10,
  52         }, {
  53                 .name           = "RAW12 (GRBG)",
  54                 .fourcc         = V4L2_PIX_FMT_SGRBG12,
  55                 .depth          = { 12 },
  56                 .color          = FIMC_FMT_RAW12,
  57                 .memplanes      = 1,
  58                 .mbus_code      = MEDIA_BUS_FMT_SGRBG12_1X12,
  59         },
  60 };
  61
  62 /**
  63  * fimc_isp_find_format - lookup color format by fourcc or media bus code
  64  * @pixelformat: fourcc to match, ignored if null
  65  * @mbus_code: media bus code to match, ignored if null
  66  * @index: index to the fimc_isp_formats array, ignored if negative
  67  */
  68 const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
  69                                         const u32 *mbus_code, int index)
  70 {
  71         const struct fimc_fmt *fmt, *def_fmt = NULL;
  72         unsigned int i;
  73         int id = 0;
  74
  75         if (index >= (int)ARRAY_SIZE(fimc_isp_formats))
  76                 return NULL;
  77
  78         for (i = 0; i < ARRAY_SIZE(fimc_isp_formats); ++i) {
  79                 fmt = &fimc_isp_formats[i];
  80                 if (pixelformat && fmt->fourcc == *pixelformat)
  81                         return fmt;
  82                 if (mbus_code && fmt->mbus_code == *mbus_code)
  83                         return fmt;
  84                 if (index == id)
  85                         def_fmt = fmt;
  86                 id++;
  87         }
  88         return def_fmt;
  89 }
  90
  91 void fimc_isp_irq_handler(struct fimc_is *is)
  92 {
  93         is->i2h_cmd.args[0] = mcuctl_read(is, MCUCTL_REG_ISSR(20));
  94         is->i2h_cmd.args[1] = mcuctl_read(is, MCUCTL_REG_ISSR(21));
  95
  96         fimc_is_fw_clear_irq1(is, FIMC_IS_INT_FRAME_DONE_ISP);
  97         fimc_isp_video_irq_handler(is);
  98
  99         wake_up(&is->irq_queue);
 100 }
 101
 102 /* Capture subdev media entity operations */
 103 static int fimc_is_link_setup(struct media_entity *entity,
 104                                 const struct media_pad *local,
 105                                 const struct media_pad *remote, u32 flags)
 106 {
 107         return 0;
 108 }
 109
 110 static const struct media_entity_operations fimc_is_subdev_media_ops = {
 111         .link_setup = fimc_is_link_setup,
 112 };
 113
 114 static int fimc_is_subdev_enum_mbus_code(struct v4l2_subdev *sd,
 115                                 struct v4l2_subdev_pad_config *cfg,
 116                                 struct v4l2_subdev_mbus_code_enum *code)
 117 {
 118         const struct fimc_fmt *fmt;
 119
 120         fmt = fimc_isp_find_format(NULL, NULL, code->index);
 121         if (!fmt)
 122                 return -EINVAL;
 123         code->code = fmt->mbus_code;
 124         return 0;
 125 }
 126
 127 static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
 128                                    struct v4l2_subdev_pad_config *cfg,
 129                                    struct v4l2_subdev_format *fmt)
 130 {
 131         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 132         struct v4l2_mbus_framefmt *mf = &fmt->format;
 133
 134         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 135                 *mf = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
 136                 return 0;
 137         }
 138
 139         mf->colorspace = V4L2_COLORSPACE_SRGB;
 140
 141         mutex_lock(&isp->subdev_lock);
 142
 143         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 144                 /* ISP OTF input image format */
 145                 *mf = isp->sink_fmt;
 146         } else {
 147                 /* ISP OTF output image format */
 148                 *mf = isp->src_fmt;
 149
 150                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 151                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 152                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 153                 }
 154         }
 155
 156         mutex_unlock(&isp->subdev_lock);
 157
 158         isp_dbg(1, sd, "%s: pad%d: fmt: 0x%x, %dx%d\n", __func__,
 159                 fmt->pad, mf->code, mf->width, mf->height);
 160
 161         return 0;
 162 }
 163
 164 static void __isp_subdev_try_format(struct fimc_isp *isp,
 165                                     struct v4l2_subdev_pad_config *cfg,
 166                                     struct v4l2_subdev_format *fmt)
 167 {
 168         struct v4l2_mbus_framefmt *mf = &fmt->format;
 169         struct v4l2_mbus_framefmt *format;
 170
 171         mf->colorspace = V4L2_COLORSPACE_SRGB;
 172
 173         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 174                 v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
 175                                 FIMC_ISP_SINK_WIDTH_MAX, 0,
 176                                 &mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
 177                                 FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
 178                 mf->code = MEDIA_BUS_FMT_SGRBG10_1X10;
 179         } else {
 180                 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
 181                         format = v4l2_subdev_get_try_format(&isp->subdev, cfg,
 182                                                 FIMC_ISP_SD_PAD_SINK);
 183                 else
 184                         format = &isp->sink_fmt;
 185
 186                 /* Allow changing format only on sink pad */
 187                 mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
 188                 mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;
 189
 190                 if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
 191                         mf->code = MEDIA_BUS_FMT_YUV10_1X30;
 192                         mf->colorspace = V4L2_COLORSPACE_JPEG;
 193                 } else {
 194                         mf->code = format->code;
 195                 }
 196         }
 197 }
 198
 199 static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
 200                                    struct v4l2_subdev_pad_config *cfg,
 201                                    struct v4l2_subdev_format *fmt)
 202 {
 203         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 204         struct fimc_is *is = fimc_isp_to_is(isp);
 205         struct v4l2_mbus_framefmt *mf = &fmt->format;
 206         int ret = 0;
 207
 208         isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
 209                  __func__, fmt->pad, mf->code, mf->width, mf->height);
 210
 211         mutex_lock(&isp->subdev_lock);
 212         __isp_subdev_try_format(isp, cfg, fmt);
 213
 214         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 215                 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
 216                 *mf = fmt->format;
 217
 218                 /* Propagate format to the source pads */
 219                 if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 220                         struct v4l2_subdev_format format = *fmt;
 221                         unsigned int pad;
 222
 223                         for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
 224                                         pad < FIMC_ISP_SD_PADS_NUM; pad++) {
 225                                 format.pad = pad;
 226                                 __isp_subdev_try_format(isp, cfg, &format);
 227                                 mf = v4l2_subdev_get_try_format(sd, cfg, pad);
 228                                 *mf = format.format;
 229                         }
 230                 }
 231         } else {
 232                 if (sd->entity.stream_count == 0) {
 233                         if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
 234                                 struct v4l2_subdev_format format = *fmt;
 235
 236                                 isp->sink_fmt = *mf;
 237
 238                                 format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
 239                                 __isp_subdev_try_format(isp, cfg, &format);
 240
 241                                 isp->src_fmt = format.format;
 242                                 __is_set_frame_size(is, &isp->src_fmt);
 243                         } else {
 244                                 isp->src_fmt = *mf;
 245                         }
 246                 } else {
 247                         ret = -EBUSY;
 248                 }
 249         }
 250
 251         mutex_unlock(&isp->subdev_lock);
 252         return ret;
 253 }
 254
 255 static int fimc_isp_subdev_s_stream(struct v4l2_subdev *sd, int on)
 256 {
 257         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 258         struct fimc_is *is = fimc_isp_to_is(isp);
 259         int ret;
 260
 261         isp_dbg(1, sd, "%s: on: %d\n", __func__, on);
 262
 263         if (!test_bit(IS_ST_INIT_DONE, &is->state))
 264                 return -EBUSY;
 265
 266         fimc_is_mem_barrier();
 267
 268         if (on) {
 269                 if (__get_pending_param_count(is)) {
 270                         ret = fimc_is_itf_s_param(is, true);
 271                         if (ret < 0)
 272                                 return ret;
 273                 }
 274
 275                 isp_dbg(1, sd, "changing mode to %d\n", is->config_index);
 276
 277                 ret = fimc_is_itf_mode_change(is);
 278                 if (ret)
 279                         return -EINVAL;
 280
 281                 clear_bit(IS_ST_STREAM_ON, &is->state);
 282                 fimc_is_hw_stream_on(is);
 283                 ret = fimc_is_wait_event(is, IS_ST_STREAM_ON, 1,
 284                                          FIMC_IS_CONFIG_TIMEOUT);
 285                 if (ret < 0) {
 286                         v4l2_err(sd, "stream on timeout\n");
 287                         return ret;
 288                 }
 289         } else {
 290                 clear_bit(IS_ST_STREAM_OFF, &is->state);
 291                 fimc_is_hw_stream_off(is);
 292                 ret = fimc_is_wait_event(is, IS_ST_STREAM_OFF, 1,
 293                                          FIMC_IS_CONFIG_TIMEOUT);
 294                 if (ret < 0) {
 295                         v4l2_err(sd, "stream off timeout\n");
 296                         return ret;
 297                 }
 298                 is->setfile.sub_index = 0;
 299         }
 300
 301         return 0;
 302 }
 303
 304 static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
 305 {
 306         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 307         struct fimc_is *is = fimc_isp_to_is(isp);
 308         int ret = 0;
 309
 310         pr_debug("on: %d\n", on);
 311
 312         if (on) {
 313                 ret = pm_runtime_get_sync(&is->pdev->dev);
 314                 if (ret < 0)
 315                         return ret;
 316                 set_bit(IS_ST_PWR_ON, &is->state);
 317
 318                 ret = fimc_is_start_firmware(is);
 319                 if (ret < 0) {
 320                         v4l2_err(sd, "firmware booting failed\n");
 321                         pm_runtime_put(&is->pdev->dev);
 322                         return ret;
 323                 }
 324                 set_bit(IS_ST_PWR_SUBIP_ON, &is->state);
 325
 326                 ret = fimc_is_hw_initialize(is);
 327         } else {
 328                 /* Close sensor */
 329                 if (!test_bit(IS_ST_PWR_ON, &is->state)) {
 330                         fimc_is_hw_close_sensor(is, 0);
 331
 332                         ret = fimc_is_wait_event(is, IS_ST_OPEN_SENSOR, 0,
 333                                                  FIMC_IS_CONFIG_TIMEOUT);
 334                         if (ret < 0) {
 335                                 v4l2_err(sd, "sensor close timeout\n");
 336                                 return ret;
 337                         }
 338                 }
 339
 340                 /* SUB IP power off */
 341                 if (test_bit(IS_ST_PWR_SUBIP_ON, &is->state)) {
 342                         fimc_is_hw_subip_power_off(is);
 343                         ret = fimc_is_wait_event(is, IS_ST_PWR_SUBIP_ON, 0,
 344                                                  FIMC_IS_CONFIG_TIMEOUT);
 345                         if (ret < 0) {
 346                                 v4l2_err(sd, "sub-IP power off timeout\n");
 347                                 return ret;
 348                         }
 349                 }
 350
 351                 fimc_is_cpu_set_power(is, 0);
 352                 pm_runtime_put_sync(&is->pdev->dev);
 353
 354                 clear_bit(IS_ST_PWR_ON, &is->state);
 355                 clear_bit(IS_ST_INIT_DONE, &is->state);
 356                 is->state = 0;
 357                 is->config[is->config_index].p_region_index[0] = 0;
 358                 is->config[is->config_index].p_region_index[1] = 0;
 359                 set_bit(IS_ST_IDLE, &is->state);
 360                 wmb();
 361         }
 362
 363         return ret;
 364 }
 365
 366 static int fimc_isp_subdev_open(struct v4l2_subdev *sd,
 367                                 struct v4l2_subdev_fh *fh)
 368 {
 369         struct v4l2_mbus_framefmt fmt;
 370         struct v4l2_mbus_framefmt *format;
 371
 372         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SINK);
 373
 374         fmt.colorspace = V4L2_COLORSPACE_SRGB;
 375         fmt.code = fimc_isp_formats[0].mbus_code;
 376         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH + FIMC_ISP_CAC_MARGIN_WIDTH;
 377         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT + FIMC_ISP_CAC_MARGIN_HEIGHT;
 378         fmt.field = V4L2_FIELD_NONE;
 379         *format = fmt;
 380
 381         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SRC_FIFO);
 382         fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 383         fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 384         *format = fmt;
 385
 386         format = v4l2_subdev_get_try_format(sd, fh->pad, FIMC_ISP_SD_PAD_SRC_DMA);
 387         *format = fmt;
 388
 389         return 0;
 390 }
 391
 392 static int fimc_isp_subdev_registered(struct v4l2_subdev *sd)
 393 {
 394         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 395         int ret;
 396
 397         /* Use pipeline object allocated by the media device. */
 398         isp->video_capture.ve.pipe = v4l2_get_subdev_hostdata(sd);
 399
 400         ret = fimc_isp_video_device_register(isp, sd->v4l2_dev,
 401                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 402         if (ret < 0)
 403                 isp->video_capture.ve.pipe = NULL;
 404
 405         return ret;
 406 }
 407
 408 static void fimc_isp_subdev_unregistered(struct v4l2_subdev *sd)
 409 {
 410         struct fimc_isp *isp = v4l2_get_subdevdata(sd);
 411
 412         fimc_isp_video_device_unregister(isp,
 413                         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 414 }
 415
 416 static const struct v4l2_subdev_internal_ops fimc_is_subdev_internal_ops = {
 417         .registered = fimc_isp_subdev_registered,
 418         .unregistered = fimc_isp_subdev_unregistered,
 419         .open = fimc_isp_subdev_open,
 420 };
 421
 422 static const struct v4l2_subdev_pad_ops fimc_is_subdev_pad_ops = {
 423         .enum_mbus_code = fimc_is_subdev_enum_mbus_code,
 424         .get_fmt = fimc_isp_subdev_get_fmt,
 425         .set_fmt = fimc_isp_subdev_set_fmt,
 426 };
 427
 428 static const struct v4l2_subdev_video_ops fimc_is_subdev_video_ops = {
 429         .s_stream = fimc_isp_subdev_s_stream,
 430 };
 431
 432 static const struct v4l2_subdev_core_ops fimc_is_core_ops = {
 433         .s_power = fimc_isp_subdev_s_power,
 434 };
 435
 436 static struct v4l2_subdev_ops fimc_is_subdev_ops = {
 437         .core = &fimc_is_core_ops,
 438         .video = &fimc_is_subdev_video_ops,
 439         .pad = &fimc_is_subdev_pad_ops,
 440 };
 441
 442 static int __ctrl_set_white_balance(struct fimc_is *is, int value)
 443 {
 444         switch (value) {
 445         case V4L2_WHITE_BALANCE_AUTO:
 446                 __is_set_isp_awb(is, ISP_AWB_COMMAND_AUTO, 0);
 447                 break;
 448         case V4L2_WHITE_BALANCE_DAYLIGHT:
 449                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 450                                         ISP_AWB_ILLUMINATION_DAYLIGHT);
 451                 break;
 452         case V4L2_WHITE_BALANCE_CLOUDY:
 453                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 454                                         ISP_AWB_ILLUMINATION_CLOUDY);
 455                 break;
 456         case V4L2_WHITE_BALANCE_INCANDESCENT:
 457                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 458                                         ISP_AWB_ILLUMINATION_TUNGSTEN);
 459                 break;
 460         case V4L2_WHITE_BALANCE_FLUORESCENT:
 461                 __is_set_isp_awb(is, ISP_AWB_COMMAND_ILLUMINATION,
 462                                         ISP_AWB_ILLUMINATION_FLUORESCENT);
 463                 break;
 464         default:
 465                 return -EINVAL;
 466         }
 467
 468         return 0;
 469 }
 470
 471 static int __ctrl_set_aewb_lock(struct fimc_is *is,
 472                                       struct v4l2_ctrl *ctrl)
 473 {
 474         bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
 475         bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
 476         struct isp_param *isp = &is->is_p_region->parameter.isp;
 477         int cmd, ret;
 478
 479         cmd = ae_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 480         isp->aa.cmd = cmd;
 481         isp->aa.target = ISP_AA_TARGET_AE;
 482         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 483         is->af.ae_lock_state = ae_lock;
 484         wmb();
 485
 486         ret = fimc_is_itf_s_param(is, false);
 487         if (ret < 0)
 488                 return ret;
 489
 490         cmd = awb_lock ? ISP_AA_COMMAND_STOP : ISP_AA_COMMAND_START;
 491         isp->aa.cmd = cmd;
 492         isp->aa.target = ISP_AA_TARGET_AE;
 493         fimc_is_set_param_bit(is, PARAM_ISP_AA);
 494         is->af.awb_lock_state = awb_lock;
 495         wmb();
 496
 497         return fimc_is_itf_s_param(is, false);
 498 }
 499
 500 /* Supported manual ISO values */
 501 static const s64 iso_qmenu[] = {
 502         50, 100, 200, 400, 800,
 503 };
 504
 505 static int __ctrl_set_iso(struct fimc_is *is, int value)
 506 {
 507         unsigned int idx, iso;
 508
 509         if (value == V4L2_ISO_SENSITIVITY_AUTO) {
 510                 __is_set_isp_iso(is, ISP_ISO_COMMAND_AUTO, 0);
 511                 return 0;
 512         }
 513         idx = is->isp.ctrls.iso->val;
 514         if (idx >= ARRAY_SIZE(iso_qmenu))
 515                 return -EINVAL;
 516
 517         iso = iso_qmenu[idx];
 518         __is_set_isp_iso(is, ISP_ISO_COMMAND_MANUAL, iso);
 519         return 0;
 520 }
 521
 522 static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 523 {
 524         unsigned int val;
 525
 526         switch (value) {
 527         case V4L2_EXPOSURE_METERING_AVERAGE:
 528                 val = ISP_METERING_COMMAND_AVERAGE;
 529                 break;
 530         case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
 531                 val = ISP_METERING_COMMAND_CENTER;
 532                 break;
 533         case V4L2_EXPOSURE_METERING_SPOT:
 534                 val = ISP_METERING_COMMAND_SPOT;
 535                 break;
 536         case V4L2_EXPOSURE_METERING_MATRIX:
 537                 val = ISP_METERING_COMMAND_MATRIX;
 538                 break;
 539         default:
 540                 return -EINVAL;
 541         }
 542
 543         __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 544         return 0;
 545 }
 546
 547 static int __ctrl_set_afc(struct fimc_is *is, int value)
 548 {
 549         switch (value) {
 550         case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
 551                 __is_set_isp_afc(is, ISP_AFC_COMMAND_DISABLE, 0);
 552                 break;
 553         case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
 554                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 50);
 555                 break;
 556         case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
 557                 __is_set_isp_afc(is, ISP_AFC_COMMAND_MANUAL, 60);
 558                 break;
 559         case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
 560                 __is_set_isp_afc(is, ISP_AFC_COMMAND_AUTO, 0);
 561                 break;
 562         default:
 563                 return -EINVAL;
 564         }
 565
 566         return 0;
 567 }
 568
 569 static int __ctrl_set_image_effect(struct fimc_is *is, int value)
 570 {
 571         static const u8 effects[][2] = {
 572                 { V4L2_COLORFX_NONE,     ISP_IMAGE_EFFECT_DISABLE },
 573                 { V4L2_COLORFX_BW,       ISP_IMAGE_EFFECT_MONOCHROME },
 574                 { V4L2_COLORFX_SEPIA,    ISP_IMAGE_EFFECT_SEPIA },
 575                 { V4L2_COLORFX_NEGATIVE, ISP_IMAGE_EFFECT_NEGATIVE_MONO },
 576                 { 16 /* TODO */,         ISP_IMAGE_EFFECT_NEGATIVE_COLOR },
 577         };
 578         int i;
 579
 580         for (i = 0; i < ARRAY_SIZE(effects); i++) {
 581                 if (effects[i][0] != value)
 582                         continue;
 583
 584                 __is_set_isp_effect(is, effects[i][1]);
 585                 return 0;
 586         }
 587
 588         return -EINVAL;
 589 }
 590
 591 static int fimc_is_s_ctrl(struct v4l2_ctrl *ctrl)
 592 {
 593         struct fimc_isp *isp = ctrl_to_fimc_isp(ctrl);
 594         struct fimc_is *is = fimc_isp_to_is(isp);
 595         bool set_param = true;
 596         int ret = 0;
 597
 598         switch (ctrl->id) {
 599         case V4L2_CID_CONTRAST:
 600                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_CONTRAST,
 601                                     ctrl->val);
 602                 break;
 603
 604         case V4L2_CID_SATURATION:
 605                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SATURATION,
 606                                     ctrl->val);
 607                 break;
 608
 609         case V4L2_CID_SHARPNESS:
 610                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_SHARPNESS,
 611                                     ctrl->val);
 612                 break;
 613
 614         case V4L2_CID_EXPOSURE_ABSOLUTE:
 615                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_EXPOSURE,
 616                                     ctrl->val);
 617                 break;
 618
 619         case V4L2_CID_BRIGHTNESS:
 620                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_BRIGHTNESS,
 621                                     ctrl->val);
 622                 break;
 623
 624         case V4L2_CID_HUE:
 625                 __is_set_isp_adjust(is, ISP_ADJUST_COMMAND_MANUAL_HUE,
 626                                     ctrl->val);
 627                 break;
 628
 629         case V4L2_CID_EXPOSURE_METERING:
 630                 ret = __ctrl_set_metering(is, ctrl->val);
 631                 break;
 632
 633         case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 634                 ret = __ctrl_set_white_balance(is, ctrl->val);
 635                 break;
 636
 637         case V4L2_CID_3A_LOCK:
 638                 ret = __ctrl_set_aewb_lock(is, ctrl);
 639                 set_param = false;
 640                 break;
 641
 642         case V4L2_CID_ISO_SENSITIVITY_AUTO:
 643                 ret = __ctrl_set_iso(is, ctrl->val);
 644                 break;
 645
 646         case V4L2_CID_POWER_LINE_FREQUENCY:
 647                 ret = __ctrl_set_afc(is, ctrl->val);
 648                 break;
 649
 650         case V4L2_CID_COLORFX:
 651                 __ctrl_set_image_effect(is, ctrl->val);
 652                 break;
 653
 654         default:
 655                 ret = -EINVAL;
 656                 break;
 657         }
 658
 659         if (ret < 0) {
 660                 v4l2_err(&isp->subdev, "Failed to set control: %s (%d)\n",
 661                                                 ctrl->name, ctrl->val);
 662                 return ret;
 663         }
 664
 665         if (set_param && test_bit(IS_ST_STREAM_ON, &is->state))
 666                 return fimc_is_itf_s_param(is, true);
 667
 668         return 0;
 669 }
 670
 671 static const struct v4l2_ctrl_ops fimc_isp_ctrl_ops = {
 672         .s_ctrl = fimc_is_s_ctrl,
 673 };
 674
 675 static void __isp_subdev_set_default_format(struct fimc_isp *isp)
 676 {
 677         struct fimc_is *is = fimc_isp_to_is(isp);
 678
 679         isp->sink_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH +
 680                                 FIMC_ISP_CAC_MARGIN_WIDTH;
 681         isp->sink_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT +
 682                                 FIMC_ISP_CAC_MARGIN_HEIGHT;
 683         isp->sink_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 684
 685         isp->src_fmt.width = DEFAULT_PREVIEW_STILL_WIDTH;
 686         isp->src_fmt.height = DEFAULT_PREVIEW_STILL_HEIGHT;
 687         isp->src_fmt.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 688         __is_set_frame_size(is, &isp->src_fmt);
 689 }
 690
 691 int fimc_isp_subdev_create(struct fimc_isp *isp)
 692 {
 693         const struct v4l2_ctrl_ops *ops = &fimc_isp_ctrl_ops;
 694         struct v4l2_ctrl_handler *handler = &isp->ctrls.handler;
 695         struct v4l2_subdev *sd = &isp->subdev;
 696         struct fimc_isp_ctrls *ctrls = &isp->ctrls;
 697         int ret;
 698
 699         mutex_init(&isp->subdev_lock);
 700
 701         v4l2_subdev_init(sd, &fimc_is_subdev_ops);
 702
 703         sd->owner = THIS_MODULE;
 704         sd->grp_id = GRP_ID_FIMC_IS;
 705         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 706         snprintf(sd->name, sizeof(sd->name), "FIMC-IS-ISP");
 707
 708         isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 709         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 710         isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
 711         ret = media_entity_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 712                                 isp->subdev_pads, 0);
 713         if (ret)
 714                 return ret;
 715
 716         v4l2_ctrl_handler_init(handler, 20);
 717
 718         ctrls->saturation = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SATURATION,
 719                                                 -2, 2, 1, 0);
 720         ctrls->brightness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BRIGHTNESS,
 721                                                 -4, 4, 1, 0);
 722         ctrls->contrast = v4l2_ctrl_new_std(handler, ops, V4L2_CID_CONTRAST,
 723                                                 -2, 2, 1, 0);
 724         ctrls->sharpness = v4l2_ctrl_new_std(handler, ops, V4L2_CID_SHARPNESS,
 725                                                 -2, 2, 1, 0);
 726         ctrls->hue = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HUE,
 727                                                 -2, 2, 1, 0);
 728
 729         ctrls->auto_wb = v4l2_ctrl_new_std_menu(handler, ops,
 730                                         V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
 731                                         8, ~0x14e, V4L2_WHITE_BALANCE_AUTO);
 732
 733         ctrls->exposure = v4l2_ctrl_new_std(handler, ops,
 734                                         V4L2_CID_EXPOSURE_ABSOLUTE,
 735                                         -4, 4, 1, 0);
 736
 737         ctrls->exp_metering = v4l2_ctrl_new_std_menu(handler, ops,
 738                                         V4L2_CID_EXPOSURE_METERING, 3,
 739                                         ~0xf, V4L2_EXPOSURE_METERING_AVERAGE);
 740
 741         v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_POWER_LINE_FREQUENCY,
 742                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
 743                                         V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
 744         /* ISO sensitivity */
 745         ctrls->auto_iso = v4l2_ctrl_new_std_menu(handler, ops,
 746                         V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
 747                         V4L2_ISO_SENSITIVITY_AUTO);
 748
 749         ctrls->iso = v4l2_ctrl_new_int_menu(handler, ops,
 750                         V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
 751                         ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
 752
 753         ctrls->aewb_lock = v4l2_ctrl_new_std(handler, ops,
 754                                         V4L2_CID_3A_LOCK, 0, 0x3, 0, 0);
 755
 756         /* TODO: Add support for NEGATIVE_COLOR option */
 757         ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_COLORFX,
 758                         V4L2_COLORFX_SET_CBCR + 1, ~0x1000f, V4L2_COLORFX_NONE);
 759
 760         if (handler->error) {
 761                 media_entity_cleanup(&sd->entity);
 762                 return handler->error;
 763         }
 764
 765         v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso,
 766                         V4L2_ISO_SENSITIVITY_MANUAL, false);
 767
 768         sd->ctrl_handler = handler;
 769         sd->internal_ops = &fimc_is_subdev_internal_ops;
 770         sd->entity.ops = &fimc_is_subdev_media_ops;
 771         v4l2_set_subdevdata(sd, isp);
 772
 773         __isp_subdev_set_default_format(isp);
 774
 775         return 0;
 776 }
 777
 778 void fimc_isp_subdev_destroy(struct fimc_isp *isp)
 779 {
 780         struct v4l2_subdev *sd = &isp->subdev;
 781
 782         v4l2_device_unregister_subdev(sd);
 783         media_entity_cleanup(&sd->entity);
 784         v4l2_ctrl_handler_free(&isp->ctrls.handler);
 785         v4l2_set_subdevdata(sd, NULL);
 786 }