drivers/staging/media/davinci_vpfe/dm365_resizer.c

   1 /*
   2  * Copyright (C) 2012 Texas Instruments Inc
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation version 2.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16  *
  17  * Contributors:
  18  *      Manjunath Hadli <manjunath.hadli@ti.com>
  19  *      Prabhakar Lad <prabhakar.lad@ti.com>
  20  *
  21  *
  22  * Resizer allows upscaling or downscaling a image to a desired
  23  * resolution. There are 2 resizer modules. both operating on the
  24  * same input image, but can have different output resolution.
  25  */
  26
  27 #include "dm365_ipipe_hw.h"
  28 #include "dm365_resizer.h"
  29
  30 #define MIN_IN_WIDTH            32
  31 #define MIN_IN_HEIGHT           32
  32 #define MAX_IN_WIDTH            4095
  33 #define MAX_IN_HEIGHT           4095
  34 #define MIN_OUT_WIDTH           16
  35 #define MIN_OUT_HEIGHT          2
  36
  37 static const unsigned int resizer_input_formats[] = {
  38         V4L2_MBUS_FMT_UYVY8_2X8,
  39         V4L2_MBUS_FMT_Y8_1X8,
  40         V4L2_MBUS_FMT_UV8_1X8,
  41         V4L2_MBUS_FMT_SGRBG12_1X12,
  42 };
  43
  44 static const unsigned int resizer_output_formats[] = {
  45         V4L2_MBUS_FMT_UYVY8_2X8,
  46         V4L2_MBUS_FMT_Y8_1X8,
  47         V4L2_MBUS_FMT_UV8_1X8,
  48         V4L2_MBUS_FMT_YDYUYDYV8_1X16,
  49         V4L2_MBUS_FMT_SGRBG12_1X12,
  50 };
  51
  52 /* resizer_calculate_line_length() - This function calculates the line length of
  53  *                                   various image planes at the input and
  54  *                                   output.
  55  */
  56 static void
  57 resizer_calculate_line_length(enum v4l2_mbus_pixelcode pix, int width,
  58                       int height, int *line_len, int *line_len_c)
  59 {
  60         *line_len = 0;
  61         *line_len_c = 0;
  62
  63         if (pix == V4L2_MBUS_FMT_UYVY8_2X8 ||
  64             pix == V4L2_MBUS_FMT_SGRBG12_1X12) {
  65                 *line_len = width << 1;
  66         } else if (pix == V4L2_MBUS_FMT_Y8_1X8 ||
  67                    pix == V4L2_MBUS_FMT_UV8_1X8) {
  68                 *line_len = width;
  69                 *line_len_c = width;
  70         } else {
  71                 /* YUV 420 */
  72                 /* round width to upper 32 byte boundary */
  73                 *line_len = width;
  74                 *line_len_c = width;
  75         }
  76         /* adjust the line len to be a multiple of 32 */
  77         *line_len += 31;
  78         *line_len &= ~0x1f;
  79         *line_len_c += 31;
  80         *line_len_c &= ~0x1f;
  81 }
  82
  83 static inline int
  84 resizer_validate_output_image_format(struct device *dev,
  85                                      struct v4l2_mbus_framefmt *format,
  86                                      int *in_line_len, int *in_line_len_c)
  87 {
  88         if (format->code != V4L2_MBUS_FMT_UYVY8_2X8 &&
  89             format->code != V4L2_MBUS_FMT_Y8_1X8 &&
  90             format->code != V4L2_MBUS_FMT_UV8_1X8 &&
  91             format->code != V4L2_MBUS_FMT_YDYUYDYV8_1X16 &&
  92             format->code != V4L2_MBUS_FMT_SGRBG12_1X12) {
  93                 dev_err(dev, "Invalid Mbus format, %d\n", format->code);
  94                 return -EINVAL;
  95         }
  96         if (!format->width || !format->height) {
  97                 dev_err(dev, "invalid width or height\n");
  98                 return -EINVAL;
  99         }
 100         resizer_calculate_line_length(format->code, format->width,
 101                 format->height, in_line_len, in_line_len_c);
 102         return 0;
 103 }
 104
 105 static void
 106 resizer_configure_passthru(struct vpfe_resizer_device *resizer, int bypass)
 107 {
 108         struct resizer_params *param = &resizer->config;
 109
 110         param->rsz_rsc_param[RSZ_A].cen = DISABLE;
 111         param->rsz_rsc_param[RSZ_A].yen = DISABLE;
 112         param->rsz_rsc_param[RSZ_A].v_phs_y = 0;
 113         param->rsz_rsc_param[RSZ_A].v_phs_c = 0;
 114         param->rsz_rsc_param[RSZ_A].v_dif = 256;
 115         param->rsz_rsc_param[RSZ_A].v_lpf_int_y = 0;
 116         param->rsz_rsc_param[RSZ_A].v_lpf_int_c = 0;
 117         param->rsz_rsc_param[RSZ_A].h_phs = 0;
 118         param->rsz_rsc_param[RSZ_A].h_dif = 256;
 119         param->rsz_rsc_param[RSZ_A].h_lpf_int_y = 0;
 120         param->rsz_rsc_param[RSZ_A].h_lpf_int_c = 0;
 121         param->rsz_rsc_param[RSZ_A].dscale_en = DISABLE;
 122         param->rsz2rgb[RSZ_A].rgb_en = DISABLE;
 123         param->rsz_en[RSZ_A] = ENABLE;
 124         param->rsz_en[RSZ_B] = DISABLE;
 125         if (bypass) {
 126                 param->rsz_rsc_param[RSZ_A].i_vps = 0;
 127                 param->rsz_rsc_param[RSZ_A].i_hps = 0;
 128                 /* Raw Bypass */
 129                 param->rsz_common.passthrough = BYPASS_ON;
 130         }
 131 }
 132
 133 static void
 134 configure_resizer_out_params(struct vpfe_resizer_device *resizer, int index,
 135                              void *output_spec, unsigned char partial,
 136                              unsigned flag)
 137 {
 138         struct resizer_params *param = &resizer->config;
 139         struct v4l2_mbus_framefmt *outformat;
 140         struct vpfe_rsz_output_spec *output;
 141
 142         if (index == RSZ_A &&
 143             resizer->resizer_a.output == RESIZER_OUTPUT_NONE) {
 144                 param->rsz_en[index] = DISABLE;
 145                 return;
 146         }
 147         if (index == RSZ_B &&
 148             resizer->resizer_b.output == RESIZER_OUTPUT_NONE) {
 149                 param->rsz_en[index] = DISABLE;
 150                 return;
 151         }
 152         output = (struct vpfe_rsz_output_spec *)output_spec;
 153         param->rsz_en[index] = ENABLE;
 154         if (partial) {
 155                 param->rsz_rsc_param[index].h_flip = output->h_flip;
 156                 param->rsz_rsc_param[index].v_flip = output->v_flip;
 157                 param->rsz_rsc_param[index].v_typ_y = output->v_typ_y;
 158                 param->rsz_rsc_param[index].v_typ_c = output->v_typ_c;
 159                 param->rsz_rsc_param[index].v_lpf_int_y =
 160                                                 output->v_lpf_int_y;
 161                 param->rsz_rsc_param[index].v_lpf_int_c =
 162                                                 output->v_lpf_int_c;
 163                 param->rsz_rsc_param[index].h_typ_y = output->h_typ_y;
 164                 param->rsz_rsc_param[index].h_typ_c = output->h_typ_c;
 165                 param->rsz_rsc_param[index].h_lpf_int_y =
 166                                                 output->h_lpf_int_y;
 167                 param->rsz_rsc_param[index].h_lpf_int_c =
 168                                                 output->h_lpf_int_c;
 169                 param->rsz_rsc_param[index].dscale_en =
 170                                                 output->en_down_scale;
 171                 param->rsz_rsc_param[index].h_dscale_ave_sz =
 172                                                 output->h_dscale_ave_sz;
 173                 param->rsz_rsc_param[index].v_dscale_ave_sz =
 174                                                 output->v_dscale_ave_sz;
 175                 param->ext_mem_param[index].user_y_ofst =
 176                                     (output->user_y_ofst + 31) & ~0x1f;
 177                 param->ext_mem_param[index].user_c_ofst =
 178                                     (output->user_c_ofst + 31) & ~0x1f;
 179                 return;
 180         }
 181
 182         if (index == RSZ_A)
 183                 outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE];
 184         else
 185                 outformat = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE];
 186         param->rsz_rsc_param[index].o_vsz = outformat->height - 1;
 187         param->rsz_rsc_param[index].o_hsz = outformat->width - 1;
 188         param->ext_mem_param[index].rsz_sdr_ptr_s_y = output->vst_y;
 189         param->ext_mem_param[index].rsz_sdr_ptr_e_y = outformat->height;
 190         param->ext_mem_param[index].rsz_sdr_ptr_s_c = output->vst_c;
 191         param->ext_mem_param[index].rsz_sdr_ptr_e_c = outformat->height;
 192
 193         if (!flag)
 194                 return;
 195         /* update common parameters */
 196         param->rsz_rsc_param[index].h_flip = output->h_flip;
 197         param->rsz_rsc_param[index].v_flip = output->v_flip;
 198         param->rsz_rsc_param[index].v_typ_y = output->v_typ_y;
 199         param->rsz_rsc_param[index].v_typ_c = output->v_typ_c;
 200         param->rsz_rsc_param[index].v_lpf_int_y = output->v_lpf_int_y;
 201         param->rsz_rsc_param[index].v_lpf_int_c = output->v_lpf_int_c;
 202         param->rsz_rsc_param[index].h_typ_y = output->h_typ_y;
 203         param->rsz_rsc_param[index].h_typ_c = output->h_typ_c;
 204         param->rsz_rsc_param[index].h_lpf_int_y = output->h_lpf_int_y;
 205         param->rsz_rsc_param[index].h_lpf_int_c = output->h_lpf_int_c;
 206         param->rsz_rsc_param[index].dscale_en = output->en_down_scale;
 207         param->rsz_rsc_param[index].h_dscale_ave_sz = output->h_dscale_ave_sz;
 208         param->rsz_rsc_param[index].v_dscale_ave_sz = output->h_dscale_ave_sz;
 209         param->ext_mem_param[index].user_y_ofst =
 210                                         (output->user_y_ofst + 31) & ~0x1f;
 211         param->ext_mem_param[index].user_c_ofst =
 212                                         (output->user_c_ofst + 31) & ~0x1f;
 213 }
 214
 215 /*
 216  * resizer_calculate_resize_ratios() - Calculates resize ratio for resizer
 217  *                                    A or B. This is called after setting
 218  *                                   the input size or output size.
 219  * @resizer: Pointer to VPFE resizer subdevice.
 220  * @index: index RSZ_A-resizer-A RSZ_B-resizer-B.
 221  */
 222 static void
 223 resizer_calculate_resize_ratios(struct vpfe_resizer_device *resizer, int index)
 224 {
 225         struct resizer_params *param = &resizer->config;
 226         struct v4l2_mbus_framefmt *informat, *outformat;
 227
 228         informat = &resizer->crop_resizer.formats[RESIZER_CROP_PAD_SINK];
 229
 230         if (index == RSZ_A)
 231                 outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE];
 232         else
 233                 outformat = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE];
 234
 235         if (outformat->field != V4L2_FIELD_INTERLACED)
 236                 param->rsz_rsc_param[index].v_dif =
 237                         ((informat->height) * 256) / (outformat->height);
 238         else
 239                 param->rsz_rsc_param[index].v_dif =
 240                         ((informat->height >> 1) * 256) / (outformat->height);
 241         param->rsz_rsc_param[index].h_dif =
 242                         ((informat->width) * 256) / (outformat->width);
 243 }
 244
 245 void
 246 static resizer_enable_422_420_conversion(struct resizer_params *param,
 247                                          int index, bool en)
 248 {
 249         param->rsz_rsc_param[index].cen = en;
 250         param->rsz_rsc_param[index].yen = en;
 251 }
 252
 253 /* resizer_calculate_sdram_offsets() - This function calculates the offsets from
 254  *                                     start of buffer for the C plane when
 255  *                                     output format is YUV420SP. It also
 256  *                                     calculates the offsets from the start of
 257  *                                     the buffer when the image is flipped
 258  *                                     vertically or horizontally for ycbcr/y/c
 259  *                                     planes.
 260  * @resizer: Pointer to resizer subdevice.
 261  * @index: index RSZ_A-resizer-A RSZ_B-resizer-B.
 262  */
 263 static int
 264 resizer_calculate_sdram_offsets(struct vpfe_resizer_device *resizer, int index)
 265 {
 266         struct resizer_params *param = &resizer->config;
 267         struct v4l2_mbus_framefmt *outformat;
 268         int bytesperpixel = 2;
 269         int image_height;
 270         int image_width;
 271         int yuv_420 = 0;
 272         int offset = 0;
 273
 274         if (index == RSZ_A)
 275                 outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE];
 276         else
 277                 outformat = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE];
 278
 279         image_height = outformat->height + 1;
 280         image_width = outformat->width + 1;
 281         param->ext_mem_param[index].c_offset = 0;
 282         param->ext_mem_param[index].flip_ofst_y = 0;
 283         param->ext_mem_param[index].flip_ofst_c = 0;
 284         if (outformat->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) {
 285                 /* YUV 420 */
 286                 yuv_420 = 1;
 287                 bytesperpixel = 1;
 288         }
 289
 290         if (param->rsz_rsc_param[index].h_flip)
 291                 /* width * bytesperpixel - 1 */
 292                 offset = (image_width * bytesperpixel) - 1;
 293         if (param->rsz_rsc_param[index].v_flip)
 294                 offset += (image_height - 1) *
 295                         param->ext_mem_param[index].rsz_sdr_oft_y;
 296         param->ext_mem_param[index].flip_ofst_y = offset;
 297         if (!yuv_420)
 298                 return 0;
 299         offset = 0;
 300         /* half height for c-plane */
 301         if (param->rsz_rsc_param[index].h_flip)
 302                 /* width * bytesperpixel - 1 */
 303                 offset = image_width - 1;
 304         if (param->rsz_rsc_param[index].v_flip)
 305                 offset += (((image_height >> 1) - 1) *
 306                            param->ext_mem_param[index].rsz_sdr_oft_c);
 307         param->ext_mem_param[index].flip_ofst_c = offset;
 308         param->ext_mem_param[index].c_offset =
 309                       param->ext_mem_param[index].rsz_sdr_oft_y * image_height;
 310         return 0;
 311 }
 312
 313 static int resizer_configure_output_win(struct vpfe_resizer_device *resizer)
 314 {
 315         struct resizer_params *param = &resizer->config;
 316         struct vpfe_rsz_output_spec output_specs;
 317         struct v4l2_mbus_framefmt *outformat;
 318         int line_len_c;
 319         int line_len;
 320         int ret;
 321
 322         outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE];
 323
 324         output_specs.vst_y = param->user_config.vst;
 325         if (outformat->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16)
 326                 output_specs.vst_c = param->user_config.vst;
 327
 328         configure_resizer_out_params(resizer, RSZ_A, &output_specs, 0, 0);
 329         resizer_calculate_line_length(outformat->code,
 330                                       param->rsz_rsc_param[0].o_hsz + 1,
 331                                       param->rsz_rsc_param[0].o_vsz + 1,
 332                                       &line_len, &line_len_c);
 333         param->ext_mem_param[0].rsz_sdr_oft_y = line_len;
 334         param->ext_mem_param[0].rsz_sdr_oft_c = line_len_c;
 335         resizer_calculate_resize_ratios(resizer, RSZ_A);
 336         if (param->rsz_en[RSZ_B])
 337                 resizer_calculate_resize_ratios(resizer, RSZ_B);
 338
 339         if (outformat->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16)
 340                 resizer_enable_422_420_conversion(param, RSZ_A, ENABLE);
 341         else
 342                 resizer_enable_422_420_conversion(param, RSZ_A, DISABLE);
 343
 344         ret = resizer_calculate_sdram_offsets(resizer, RSZ_A);
 345         if (!ret && param->rsz_en[RSZ_B])
 346                 ret = resizer_calculate_sdram_offsets(resizer, RSZ_B);
 347
 348         if (ret)
 349                 pr_err("Error in calculating sdram offsets\n");
 350         return ret;
 351 }
 352
 353 static int
 354 resizer_calculate_down_scale_f_div_param(struct device *dev,
 355                                          int input_width, int output_width,
 356                                          struct resizer_scale_param *param)
 357 {
 358         /* rsz = R, input_width = H, output width = h in the equation */
 359         unsigned int two_power;
 360         unsigned int upper_h1;
 361         unsigned int upper_h2;
 362         unsigned int val1;
 363         unsigned int val;
 364         unsigned int rsz;
 365         unsigned int h1;
 366         unsigned int h2;
 367         unsigned int o;
 368         unsigned int n;
 369
 370         upper_h1 = input_width >> 1;
 371         n = param->h_dscale_ave_sz;
 372         /* 2 ^ (scale+1) */
 373         two_power = 1 << (n + 1);
 374         upper_h1 = (upper_h1 >> (n + 1)) << (n + 1);
 375         upper_h2 = input_width - upper_h1;
 376         if (upper_h2 % two_power) {
 377                 dev_err(dev, "frame halves to be a multiple of 2 power n+1\n");
 378                 return -EINVAL;
 379         }
 380         two_power = 1 << n;
 381         rsz = (input_width << 8) / output_width;
 382         val = rsz * two_power;
 383         val = ((upper_h1 << 8) / val) + 1;
 384         if (!(val % 2)) {
 385                 h1 = val;
 386         } else {
 387                 val = upper_h1 << 8;
 388                 val >>= n + 1;
 389                 val -= rsz >> 1;
 390                 val /= rsz << 1;
 391                 val <<= 1;
 392                 val += 2;
 393                 h1 = val;
 394         }
 395         o = 10 + (two_power << 2);
 396         if (((input_width << 7) / rsz) % 2)
 397                 o += (((CEIL(rsz, 1024)) << 1) << n);
 398         h2 = output_width - h1;
 399         /* phi */
 400         val = (h1 * rsz) - (((upper_h1 - (o - 10)) / two_power) << 8);
 401         /* skip */
 402         val1 = ((val - 1024) >> 9) << 1;
 403         param->f_div.num_passes = MAX_PASSES;
 404         param->f_div.pass[0].o_hsz = h1 - 1;
 405         param->f_div.pass[0].i_hps = 0;
 406         param->f_div.pass[0].h_phs = 0;
 407         param->f_div.pass[0].src_hps = 0;
 408         param->f_div.pass[0].src_hsz = upper_h1 + o;
 409         param->f_div.pass[1].o_hsz = h2 - 1;
 410         param->f_div.pass[1].i_hps = 10 + (val1 * two_power);
 411         param->f_div.pass[1].h_phs = (val - (val1 << 8));
 412         param->f_div.pass[1].src_hps = upper_h1 - o;
 413         param->f_div.pass[1].src_hsz = upper_h2 + o;
 414
 415         return 0;
 416 }
 417
 418 static int
 419 resizer_configure_common_in_params(struct vpfe_resizer_device *resizer)
 420 {
 421         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
 422         struct resizer_params *param = &resizer->config;
 423         struct vpfe_rsz_config_params *user_config;
 424         struct v4l2_mbus_framefmt *informat;
 425
 426         informat = &resizer->crop_resizer.formats[RESIZER_CROP_PAD_SINK];
 427         user_config = &resizer->config.user_config;
 428         param->rsz_common.vps = param->user_config.vst;
 429         param->rsz_common.hps = param->user_config.hst;
 430
 431         if (vpfe_ipipeif_decimation_enabled(vpfe_dev))
 432                 param->rsz_common.hsz = (((informat->width - 1) *
 433                         IPIPEIF_RSZ_CONST) / vpfe_ipipeif_get_rsz(vpfe_dev));
 434         else
 435                 param->rsz_common.hsz = informat->width - 1;
 436
 437         if (informat->field == V4L2_FIELD_INTERLACED)
 438                 param->rsz_common.vsz  = (informat->height - 1) >> 1;
 439         else
 440                 param->rsz_common.vsz  = informat->height - 1;
 441
 442         param->rsz_common.raw_flip = 0;
 443
 444         if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_IPIPEIF)
 445                 param->rsz_common.source = IPIPEIF_DATA;
 446         else
 447                 param->rsz_common.source = IPIPE_DATA;
 448
 449         switch (informat->code) {
 450         case V4L2_MBUS_FMT_UYVY8_2X8:
 451                 param->rsz_common.src_img_fmt = RSZ_IMG_422;
 452                 param->rsz_common.raw_flip = 0;
 453                 break;
 454
 455         case V4L2_MBUS_FMT_Y8_1X8:
 456                 param->rsz_common.src_img_fmt = RSZ_IMG_420;
 457                 /* Select y */
 458                 param->rsz_common.y_c = 0;
 459                 param->rsz_common.raw_flip = 0;
 460                 break;
 461
 462         case V4L2_MBUS_FMT_UV8_1X8:
 463                 param->rsz_common.src_img_fmt = RSZ_IMG_420;
 464                 /* Select y */
 465                 param->rsz_common.y_c = 1;
 466                 param->rsz_common.raw_flip = 0;
 467                 break;
 468
 469         case V4L2_MBUS_FMT_SGRBG12_1X12:
 470                 param->rsz_common.raw_flip = 1;
 471                 break;
 472
 473         default:
 474                 param->rsz_common.src_img_fmt = RSZ_IMG_422;
 475                 param->rsz_common.source = IPIPE_DATA;
 476         }
 477
 478         param->rsz_common.yuv_y_min = user_config->yuv_y_min;
 479         param->rsz_common.yuv_y_max = user_config->yuv_y_max;
 480         param->rsz_common.yuv_c_min = user_config->yuv_c_min;
 481         param->rsz_common.yuv_c_max = user_config->yuv_c_max;
 482         param->rsz_common.out_chr_pos = user_config->out_chr_pos;
 483         param->rsz_common.rsz_seq_crv = user_config->chroma_sample_even;
 484
 485         return 0;
 486 }
 487 static int
 488 resizer_configure_in_continious_mode(struct vpfe_resizer_device *resizer)
 489 {
 490         struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev;
 491         struct resizer_params *param = &resizer->config;
 492         struct vpfe_rsz_config_params *cont_config;
 493         int line_len_c;
 494         int line_len;
 495         int ret;
 496
 497         if (resizer->resizer_a.output != RESIZER_OUPUT_MEMORY) {
 498                 dev_err(dev, "enable resizer - Resizer-A\n");
 499                 return -EINVAL;
 500         }
 501
 502         cont_config = &resizer->config.user_config;
 503         param->rsz_en[RSZ_A] = ENABLE;
 504         configure_resizer_out_params(resizer, RSZ_A,
 505                                      &cont_config->output1, 1, 0);
 506         param->rsz_en[RSZ_B] = DISABLE;
 507         param->oper_mode = RESIZER_MODE_CONTINIOUS;
 508
 509         if (resizer->resizer_b.output == RESIZER_OUPUT_MEMORY) {
 510                 struct v4l2_mbus_framefmt *outformat2;
 511
 512                 param->rsz_en[RSZ_B] = ENABLE;
 513                 outformat2 = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE];
 514                 ret = resizer_validate_output_image_format(dev, outformat2,
 515                                 &line_len, &line_len_c);
 516                 if (ret)
 517                         return ret;
 518                 param->ext_mem_param[RSZ_B].rsz_sdr_oft_y = line_len;
 519                 param->ext_mem_param[RSZ_B].rsz_sdr_oft_c = line_len_c;
 520                 configure_resizer_out_params(resizer, RSZ_B,
 521                                                 &cont_config->output2, 0, 1);
 522                 if (outformat2->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16)
 523                         resizer_enable_422_420_conversion(param,
 524                                                           RSZ_B, ENABLE);
 525                 else
 526                         resizer_enable_422_420_conversion(param,
 527                                                           RSZ_B, DISABLE);
 528         }
 529         resizer_configure_common_in_params(resizer);
 530         ret = resizer_configure_output_win(resizer);
 531         if (ret)
 532                 return ret;
 533
 534         param->rsz_common.passthrough = cont_config->bypass;
 535         if (cont_config->bypass)
 536                 resizer_configure_passthru(resizer, 1);
 537
 538         return 0;
 539 }
 540
 541 static inline int
 542 resizer_validate_input_image_format(struct device *dev,
 543                                     enum v4l2_mbus_pixelcode pix,
 544                                     int width, int height, int *line_len)
 545 {
 546         int val;
 547
 548         if (pix != V4L2_MBUS_FMT_UYVY8_2X8 &&
 549             pix != V4L2_MBUS_FMT_Y8_1X8 &&
 550             pix != V4L2_MBUS_FMT_UV8_1X8 &&
 551             pix != V4L2_MBUS_FMT_SGRBG12_1X12) {
 552                 dev_err(dev,
 553                 "resizer validate output: pix format not supported, %d\n", pix);
 554                 return -EINVAL;
 555         }
 556
 557         if (!width || !height) {
 558                 dev_err(dev,
 559                         "resizer validate input: invalid width or height\n");
 560                 return -EINVAL;
 561         }
 562
 563         if (pix == V4L2_MBUS_FMT_UV8_1X8)
 564                 resizer_calculate_line_length(pix, width,
 565                                               height, &val, line_len);
 566         else
 567                 resizer_calculate_line_length(pix, width,
 568                                               height, line_len, &val);
 569
 570         return 0;
 571 }
 572
 573 static int
 574 resizer_validate_decimation(struct device *dev, enum ipipeif_decimation dec_en,
 575                             unsigned char rsz, unsigned char frame_div_mode_en,
 576                             int width)
 577 {
 578         if (dec_en && frame_div_mode_en) {
 579                 dev_err(dev,
 580                  "dec_en & frame_div_mode_en can not enabled simultaneously\n");
 581                 return -EINVAL;
 582         }
 583
 584         if (frame_div_mode_en) {
 585                 dev_err(dev, "frame_div_mode mode not supported\n");
 586                 return -EINVAL;
 587         }
 588
 589         if (!dec_en)
 590                 return 0;
 591
 592         if (width <= VPFE_IPIPE_MAX_INPUT_WIDTH) {
 593                 dev_err(dev,
 594                         "image width to be more than %d for decimation\n",
 595                         VPFE_IPIPE_MAX_INPUT_WIDTH);
 596                 return -EINVAL;
 597         }
 598
 599         if (rsz < IPIPEIF_RSZ_MIN || rsz > IPIPEIF_RSZ_MAX) {
 600                 dev_err(dev, "rsz range is %d to %d\n",
 601                         IPIPEIF_RSZ_MIN, IPIPEIF_RSZ_MAX);
 602                 return -EINVAL;
 603         }
 604
 605         return 0;
 606 }
 607
 608 /* resizer_calculate_normal_f_div_param() - Algorithm to calculate the frame
 609  *                                          division parameters for resizer.
 610  *                                          in normal mode.
 611  */
 612 static int
 613 resizer_calculate_normal_f_div_param(struct device *dev, int input_width,
 614                 int output_width, struct resizer_scale_param *param)
 615 {
 616         /* rsz = R, input_width = H, output width = h in the equation */
 617         unsigned int val1;
 618         unsigned int rsz;
 619         unsigned int val;
 620         unsigned int h1;
 621         unsigned int h2;
 622         unsigned int o;
 623
 624         if (output_width > input_width) {
 625                 dev_err(dev, "frame div mode is used for scale down only\n");
 626                 return -EINVAL;
 627         }
 628
 629         rsz = (input_width << 8) / output_width;
 630         val = rsz << 1;
 631         val = ((input_width << 8) / val) + 1;
 632         o = 14;
 633         if (!(val % 2)) {
 634                 h1 = val;
 635         } else {
 636                 val = (input_width << 7);
 637                 val -= rsz >> 1;
 638                 val /= rsz << 1;
 639                 val <<= 1;
 640                 val += 2;
 641                 o += ((CEIL(rsz, 1024)) << 1);
 642                 h1 = val;
 643         }
 644         h2 = output_width - h1;
 645         /* phi */
 646         val = (h1 * rsz) - (((input_width >> 1) - o) << 8);
 647         /* skip */
 648         val1 = ((val - 1024) >> 9) << 1;
 649         param->f_div.num_passes = MAX_PASSES;
 650         param->f_div.pass[0].o_hsz = h1 - 1;
 651         param->f_div.pass[0].i_hps = 0;
 652         param->f_div.pass[0].h_phs = 0;
 653         param->f_div.pass[0].src_hps = 0;
 654         param->f_div.pass[0].src_hsz = (input_width >> 2) + o;
 655         param->f_div.pass[1].o_hsz = h2 - 1;
 656         param->f_div.pass[1].i_hps = val1;
 657         param->f_div.pass[1].h_phs = (val - (val1 << 8));
 658         param->f_div.pass[1].src_hps = (input_width >> 2) - o;
 659         param->f_div.pass[1].src_hsz = (input_width >> 2) + o;
 660
 661         return 0;
 662 }
 663
 664 static int
 665 resizer_configure_in_single_shot_mode(struct vpfe_resizer_device *resizer)
 666 {
 667         struct vpfe_rsz_config_params *config = &resizer->config.user_config;
 668         struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev;
 669         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
 670         struct v4l2_mbus_framefmt *outformat1, *outformat2;
 671         struct resizer_params *param = &resizer->config;
 672         struct v4l2_mbus_framefmt *informat;
 673         int decimation;
 674         int line_len_c;
 675         int line_len;
 676         int rsz;
 677         int ret;
 678
 679         informat = &resizer->crop_resizer.formats[RESIZER_CROP_PAD_SINK];
 680         outformat1 = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE];
 681         outformat2 = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE];
 682
 683         decimation = vpfe_ipipeif_decimation_enabled(vpfe_dev);
 684         rsz = vpfe_ipipeif_get_rsz(vpfe_dev);
 685         if (decimation && param->user_config.frame_div_mode_en) {
 686                 dev_err(dev,
 687                 "dec_en & frame_div_mode_en cannot enabled simultaneously\n");
 688                 return -EINVAL;
 689         }
 690
 691         ret = resizer_validate_decimation(dev, decimation, rsz,
 692               param->user_config.frame_div_mode_en, informat->width);
 693         if (ret)
 694                 return -EINVAL;
 695
 696         ret = resizer_validate_input_image_format(dev, informat->code,
 697                 informat->width, informat->height, &line_len);
 698         if (ret)
 699                 return -EINVAL;
 700
 701         if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) {
 702                 param->rsz_en[RSZ_A] = ENABLE;
 703                 ret = resizer_validate_output_image_format(dev, outformat1,
 704                                         &line_len, &line_len_c);
 705                 if (ret)
 706                         return ret;
 707                 param->ext_mem_param[RSZ_A].rsz_sdr_oft_y = line_len;
 708                 param->ext_mem_param[RSZ_A].rsz_sdr_oft_c = line_len_c;
 709                 configure_resizer_out_params(resizer, RSZ_A,
 710                                         &param->user_config.output1, 0, 1);
 711
 712                 if (outformat1->code == V4L2_MBUS_FMT_SGRBG12_1X12)
 713                         param->rsz_common.raw_flip = 1;
 714                 else
 715                         param->rsz_common.raw_flip = 0;
 716
 717                 if (outformat1->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16)
 718                         resizer_enable_422_420_conversion(param,
 719                                                           RSZ_A, ENABLE);
 720                 else
 721                         resizer_enable_422_420_conversion(param,
 722                                                           RSZ_A, DISABLE);
 723         }
 724
 725         if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) {
 726                 param->rsz_en[RSZ_B] = ENABLE;
 727                 ret = resizer_validate_output_image_format(dev, outformat2,
 728                                 &line_len, &line_len_c);
 729                 if (ret)
 730                         return ret;
 731                 param->ext_mem_param[RSZ_B].rsz_sdr_oft_y = line_len;
 732                 param->ext_mem_param[RSZ_B].rsz_sdr_oft_c = line_len_c;
 733                 configure_resizer_out_params(resizer, RSZ_B,
 734                                         &param->user_config.output2, 0, 1);
 735                 if (outformat2->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16)
 736                         resizer_enable_422_420_conversion(param,
 737                                                           RSZ_B, ENABLE);
 738                 else
 739                         resizer_enable_422_420_conversion(param,
 740                                                           RSZ_B, DISABLE);
 741         }
 742
 743         resizer_configure_common_in_params(resizer);
 744         if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) {
 745                 resizer_calculate_resize_ratios(resizer, RSZ_A);
 746                 resizer_calculate_sdram_offsets(resizer, RSZ_A);
 747                 /* Overriding resize ratio calculation */
 748                 if (informat->code == V4L2_MBUS_FMT_UV8_1X8) {
 749                         param->rsz_rsc_param[RSZ_A].v_dif =
 750                                 (((informat->height + 1) * 2) * 256) /
 751                                 (param->rsz_rsc_param[RSZ_A].o_vsz + 1);
 752                 }
 753         }
 754
 755         if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) {
 756                 resizer_calculate_resize_ratios(resizer, RSZ_B);
 757                 resizer_calculate_sdram_offsets(resizer, RSZ_B);
 758                 /* Overriding resize ratio calculation */
 759                 if (informat->code == V4L2_MBUS_FMT_UV8_1X8) {
 760                         param->rsz_rsc_param[RSZ_B].v_dif =
 761                                 (((informat->height + 1) * 2) * 256) /
 762                                 (param->rsz_rsc_param[RSZ_B].o_vsz + 1);
 763                 }
 764         }
 765         if (param->user_config.frame_div_mode_en &&
 766                 param->rsz_en[RSZ_A]) {
 767                 if (!param->rsz_rsc_param[RSZ_A].dscale_en)
 768                         ret = resizer_calculate_normal_f_div_param(dev,
 769                               informat->width,
 770                               param->rsz_rsc_param[RSZ_A].o_vsz + 1,
 771                               &param->rsz_rsc_param[RSZ_A]);
 772                 else
 773                         ret = resizer_calculate_down_scale_f_div_param(dev,
 774                               informat->width,
 775                               param->rsz_rsc_param[RSZ_A].o_vsz + 1,
 776                               &param->rsz_rsc_param[RSZ_A]);
 777                 if (ret)
 778                         return -EINVAL;
 779         }
 780         if (param->user_config.frame_div_mode_en &&
 781                 param->rsz_en[RSZ_B]) {
 782                 if (!param->rsz_rsc_param[RSZ_B].dscale_en)
 783                         ret = resizer_calculate_normal_f_div_param(dev,
 784                               informat->width,
 785                               param->rsz_rsc_param[RSZ_B].o_vsz + 1,
 786                               &param->rsz_rsc_param[RSZ_B]);
 787                 else
 788                         ret = resizer_calculate_down_scale_f_div_param(dev,
 789                               informat->width,
 790                               param->rsz_rsc_param[RSZ_B].o_vsz + 1,
 791                               &param->rsz_rsc_param[RSZ_B]);
 792                 if (ret)
 793                         return -EINVAL;
 794         }
 795         param->rsz_common.passthrough = config->bypass;
 796         if (config->bypass)
 797                 resizer_configure_passthru(resizer, 1);
 798         return 0;
 799 }
 800
 801 static void
 802 resizer_set_defualt_configuration(struct vpfe_resizer_device *resizer)
 803 {
 804 #define  WIDTH_I 640
 805 #define  HEIGHT_I 480
 806 #define  WIDTH_O 640
 807 #define  HEIGHT_O 480
 808         const struct resizer_params rsz_default_config = {
 809                 .oper_mode = RESIZER_MODE_ONE_SHOT,
 810                 .rsz_common = {
 811                         .vsz = HEIGHT_I - 1,
 812                         .hsz = WIDTH_I - 1,
 813                         .src_img_fmt = RSZ_IMG_422,
 814                         .raw_flip = 1,  /* flip preserve Raw format */
 815                         .source = IPIPE_DATA,
 816                         .passthrough = BYPASS_OFF,
 817                         .yuv_y_max = 255,
 818                         .yuv_c_max = 255,
 819                         .rsz_seq_crv = DISABLE,
 820                         .out_chr_pos = VPFE_IPIPE_YUV422_CHR_POS_COSITE,
 821                 },
 822                 .rsz_rsc_param = {
 823                         {
 824                                 .h_flip = DISABLE,
 825                                 .v_flip = DISABLE,
 826                                 .cen = DISABLE,
 827                                 .yen = DISABLE,
 828                                 .o_vsz = HEIGHT_O - 1,
 829                                 .o_hsz = WIDTH_O - 1,
 830                                 .v_dif = 256,
 831                                 .v_typ_y = VPFE_RSZ_INTP_CUBIC,
 832                                 .h_typ_c = VPFE_RSZ_INTP_CUBIC,
 833                                 .h_dif = 256,
 834                                 .h_typ_y = VPFE_RSZ_INTP_CUBIC,
 835                                 .h_typ_c = VPFE_RSZ_INTP_CUBIC,
 836                                 .h_dscale_ave_sz =
 837                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 838                                 .v_dscale_ave_sz =
 839                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 840                         },
 841                         {
 842                                 .h_flip = DISABLE,
 843                                 .v_flip = DISABLE,
 844                                 .cen = DISABLE,
 845                                 .yen = DISABLE,
 846                                 .o_vsz = HEIGHT_O - 1,
 847                                 .o_hsz = WIDTH_O - 1,
 848                                 .v_dif = 256,
 849                                 .v_typ_y = VPFE_RSZ_INTP_CUBIC,
 850                                 .h_typ_c = VPFE_RSZ_INTP_CUBIC,
 851                                 .h_dif = 256,
 852                                 .h_typ_y = VPFE_RSZ_INTP_CUBIC,
 853                                 .h_typ_c = VPFE_RSZ_INTP_CUBIC,
 854                                 .h_dscale_ave_sz =
 855                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 856                                 .v_dscale_ave_sz =
 857                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 858                         },
 859                 },
 860                 .rsz2rgb = {
 861                         {
 862                                 .rgb_en = DISABLE
 863                         },
 864                         {
 865                                 .rgb_en = DISABLE
 866                         }
 867                 },
 868                 .ext_mem_param = {
 869                         {
 870                                 .rsz_sdr_oft_y = WIDTH_O << 1,
 871                                 .rsz_sdr_ptr_e_y = HEIGHT_O,
 872                                 .rsz_sdr_oft_c = WIDTH_O,
 873                                 .rsz_sdr_ptr_e_c = HEIGHT_O >> 1,
 874                         },
 875                         {
 876                                 .rsz_sdr_oft_y = WIDTH_O << 1,
 877                                 .rsz_sdr_ptr_e_y = HEIGHT_O,
 878                                 .rsz_sdr_oft_c = WIDTH_O,
 879                                 .rsz_sdr_ptr_e_c = HEIGHT_O,
 880                         },
 881                 },
 882                 .rsz_en[0] = ENABLE,
 883                 .rsz_en[1] = DISABLE,
 884                 .user_config = {
 885                         .output1 = {
 886                                 .v_typ_y = VPFE_RSZ_INTP_CUBIC,
 887                                 .v_typ_c = VPFE_RSZ_INTP_CUBIC,
 888                                 .h_typ_y = VPFE_RSZ_INTP_CUBIC,
 889                                 .h_typ_c = VPFE_RSZ_INTP_CUBIC,
 890                                 .h_dscale_ave_sz =
 891                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 892                                 .v_dscale_ave_sz =
 893                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 894                         },
 895                         .output2 = {
 896                                 .v_typ_y = VPFE_RSZ_INTP_CUBIC,
 897                                 .v_typ_c = VPFE_RSZ_INTP_CUBIC,
 898                                 .h_typ_y = VPFE_RSZ_INTP_CUBIC,
 899                                 .h_typ_c = VPFE_RSZ_INTP_CUBIC,
 900                                 .h_dscale_ave_sz =
 901                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 902                                 .v_dscale_ave_sz =
 903                                         VPFE_IPIPE_DWN_SCALE_1_OVER_2,
 904                         },
 905                         .yuv_y_max = 255,
 906                         .yuv_c_max = 255,
 907                         .out_chr_pos = VPFE_IPIPE_YUV422_CHR_POS_COSITE,
 908                 },
 909         };
 910         memset(&resizer->config, 0, sizeof(struct resizer_params));
 911         memcpy(&resizer->config, &rsz_default_config,
 912                sizeof(struct resizer_params));
 913 }
 914
 915 /*
 916  * resizer_set_configuration() - set resizer config
 917  * @resizer: vpfe resizer device pointer.
 918  * @chan_config: resizer channel configuration.
 919  */
 920 static int
 921 resizer_set_configuration(struct vpfe_resizer_device *resizer,
 922                           struct vpfe_rsz_config *chan_config)
 923 {
 924         if (!chan_config->config)
 925                 resizer_set_defualt_configuration(resizer);
 926         else
 927                 if (copy_from_user(&resizer->config.user_config,
 928                     chan_config->config, sizeof(struct vpfe_rsz_config_params)))
 929                         return -EFAULT;
 930
 931         return 0;
 932 }
 933
 934 /*
 935  * resizer_get_configuration() - get resizer config
 936  * @resizer: vpfe resizer device pointer.
 937  * @channel: image processor logical channel.
 938  * @chan_config: resizer channel configuration.
 939  */
 940 static int
 941 resizer_get_configuration(struct vpfe_resizer_device *resizer,
 942                    struct vpfe_rsz_config *chan_config)
 943 {
 944         struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev;
 945
 946         if (!chan_config->config) {
 947                 dev_err(dev, "Resizer channel invalid pointer\n");
 948                 return -EINVAL;
 949         }
 950
 951         if (copy_to_user((void *)chan_config->config,
 952            (void *)&resizer->config.user_config,
 953            sizeof(struct vpfe_rsz_config_params))) {
 954                 dev_err(dev, "resizer_get_configuration: Error in copy to user\n");
 955                 return -EFAULT;
 956         }
 957
 958         return 0;
 959 }
 960
 961 /*
 962  * VPFE video operations
 963  */
 964
 965 /*
 966  * resizer_a_video_out_queue() - RESIZER-A video out queue
 967  * @vpfe_dev: vpfe device pointer.
 968  * @addr: buffer address.
 969  */
 970 static int resizer_a_video_out_queue(struct vpfe_device *vpfe_dev,
 971                                      unsigned long addr)
 972 {
 973         struct vpfe_resizer_device *resizer = &vpfe_dev->vpfe_resizer;
 974
 975         return resizer_set_outaddr(resizer->base_addr,
 976                                       &resizer->config, RSZ_A, addr);
 977 }
 978
 979 /*
 980  * resizer_b_video_out_queue() - RESIZER-B video out queue
 981  * @vpfe_dev: vpfe device pointer.
 982  * @addr: buffer address.
 983  */
 984 static int resizer_b_video_out_queue(struct vpfe_device *vpfe_dev,
 985                                      unsigned long addr)
 986 {
 987         struct vpfe_resizer_device *resizer = &vpfe_dev->vpfe_resizer;
 988
 989         return resizer_set_outaddr(resizer->base_addr,
 990                                    &resizer->config, RSZ_B, addr);
 991 }
 992
 993 static const struct vpfe_video_operations resizer_a_video_ops = {
 994         .queue = resizer_a_video_out_queue,
 995 };
 996
 997 static const struct vpfe_video_operations resizer_b_video_ops = {
 998         .queue = resizer_b_video_out_queue,
 999 };
1000
1001 static void resizer_enable(struct vpfe_resizer_device *resizer, int en)
1002 {
1003         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1004         u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input;
1005         unsigned char val;
1006
1007         if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_NONE)
1008                 return;
1009
1010         if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_IPIPEIF &&
1011            ipipeif_sink == IPIPEIF_INPUT_MEMORY) {
1012                 do {
1013                         val = regr_rsz(resizer->base_addr, RSZ_SRC_EN);
1014                 } while (val);
1015
1016                 if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) {
1017                         do {
1018                                 val = regr_rsz(resizer->base_addr, RSZ_A);
1019                         } while (val);
1020                 }
1021                 if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) {
1022                         do {
1023                                 val = regr_rsz(resizer->base_addr, RSZ_B);
1024                         } while (val);
1025                 }
1026         }
1027         if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE)
1028                 rsz_enable(resizer->base_addr, RSZ_A, en);
1029
1030         if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE)
1031                 rsz_enable(resizer->base_addr, RSZ_B, en);
1032 }
1033
1034
1035 /*
1036  * resizer_ss_isr() - resizer module single-shot buffer scheduling isr
1037  * @resizer: vpfe resizer device pointer.
1038  */
1039 static void resizer_ss_isr(struct vpfe_resizer_device *resizer)
1040 {
1041         struct vpfe_video_device *video_out = &resizer->resizer_a.video_out;
1042         struct vpfe_video_device *video_out2 = &resizer->resizer_b.video_out;
1043         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1044         struct vpfe_pipeline *pipe = &video_out->pipe;
1045         u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input;
1046         u32 val;
1047
1048         if (ipipeif_sink != IPIPEIF_INPUT_MEMORY)
1049                 return;
1050
1051         if (resizer->resizer_a.output == RESIZER_OUPUT_MEMORY) {
1052                 val = vpss_dma_complete_interrupt();
1053                 if (val != 0 && val != 2)
1054                         return;
1055         }
1056
1057         if (resizer->resizer_a.output == RESIZER_OUPUT_MEMORY) {
1058                 spin_lock(&video_out->dma_queue_lock);
1059                 vpfe_video_process_buffer_complete(video_out);
1060                 video_out->state = VPFE_VIDEO_BUFFER_NOT_QUEUED;
1061                 vpfe_video_schedule_next_buffer(video_out);
1062                 spin_unlock(&video_out->dma_queue_lock);
1063         }
1064
1065         /* If resizer B is enabled */
1066         if (pipe->output_num > 1 && resizer->resizer_b.output ==
1067             RESIZER_OUPUT_MEMORY) {
1068                 spin_lock(&video_out->dma_queue_lock);
1069                 vpfe_video_process_buffer_complete(video_out2);
1070                 video_out2->state = VPFE_VIDEO_BUFFER_NOT_QUEUED;
1071                 vpfe_video_schedule_next_buffer(video_out2);
1072                 spin_unlock(&video_out2->dma_queue_lock);
1073         }
1074
1075         /* start HW if buffers are queued */
1076         if (vpfe_video_is_pipe_ready(pipe) &&
1077             resizer->resizer_a.output == RESIZER_OUPUT_MEMORY) {
1078                 resizer_enable(resizer, 1);
1079                 vpfe_ipipe_enable(vpfe_dev, 1);
1080                 vpfe_ipipeif_enable(vpfe_dev);
1081         }
1082 }
1083
1084 /*
1085  * vpfe_resizer_buffer_isr() - resizer module buffer scheduling isr
1086  * @resizer: vpfe resizer device pointer.
1087  */
1088 void vpfe_resizer_buffer_isr(struct vpfe_resizer_device *resizer)
1089 {
1090         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1091         struct vpfe_video_device *video_out = &resizer->resizer_a.video_out;
1092         struct vpfe_video_device *video_out2 = &resizer->resizer_b.video_out;
1093         struct vpfe_pipeline *pipe = &resizer->resizer_a.video_out.pipe;
1094         enum v4l2_field field;
1095         int fid;
1096
1097         if (!video_out->started)
1098                 return;
1099
1100         if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_NONE)
1101                 return;
1102
1103         field = video_out->fmt.fmt.pix.field;
1104         if (field == V4L2_FIELD_NONE) {
1105                 /* handle progressive frame capture */
1106                 if (video_out->cur_frm != video_out->next_frm) {
1107                         vpfe_video_process_buffer_complete(video_out);
1108                         if (pipe->output_num > 1)
1109                                 vpfe_video_process_buffer_complete(video_out2);
1110                 }
1111
1112                 video_out->skip_frame_count--;
1113                 if (!video_out->skip_frame_count) {
1114                         video_out->skip_frame_count =
1115                                 video_out->skip_frame_count_init;
1116                         rsz_src_enable(resizer->base_addr, 1);
1117                 } else {
1118                         rsz_src_enable(resizer->base_addr, 0);
1119                 }
1120                 return;
1121         }
1122
1123         /* handle interlaced frame capture */
1124         fid = vpfe_isif_get_fid(vpfe_dev);
1125
1126         /* switch the software maintained field id */
1127         video_out->field_id ^= 1;
1128         if (fid == video_out->field_id) {
1129                 /*
1130                  * we are in-sync here,continue.
1131                  * One frame is just being captured. If the
1132                  * next frame is available, release the current
1133                  * frame and move on
1134                  */
1135                 if (fid == 0 && video_out->cur_frm != video_out->next_frm) {
1136                         vpfe_video_process_buffer_complete(video_out);
1137                         if (pipe->output_num > 1)
1138                                 vpfe_video_process_buffer_complete(video_out2);
1139                 }
1140         } else if (fid == 0) {
1141                 /*
1142                 * out of sync. Recover from any hardware out-of-sync.
1143                 * May loose one frame
1144                 */
1145                 video_out->field_id = fid;
1146         }
1147 }
1148
1149 /*
1150  * vpfe_resizer_dma_isr() - resizer module dma isr
1151  * @resizer: vpfe resizer device pointer.
1152  */
1153 void vpfe_resizer_dma_isr(struct vpfe_resizer_device *resizer)
1154 {
1155         struct vpfe_video_device *video_out2 = &resizer->resizer_b.video_out;
1156         struct vpfe_video_device *video_out = &resizer->resizer_a.video_out;
1157         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1158         struct vpfe_pipeline *pipe = &video_out->pipe;
1159         int schedule_capture = 0;
1160         enum v4l2_field field;
1161         int fid;
1162
1163         if (!video_out->started)
1164                 return;
1165
1166         if (pipe->state == VPFE_PIPELINE_STREAM_SINGLESHOT) {
1167                 resizer_ss_isr(resizer);
1168                 return;
1169         }
1170
1171         field = video_out->fmt.fmt.pix.field;
1172         if (field == V4L2_FIELD_NONE) {
1173                 if (!list_empty(&video_out->dma_queue) &&
1174                         video_out->cur_frm == video_out->next_frm)
1175                         schedule_capture = 1;
1176         } else {
1177                 fid = vpfe_isif_get_fid(vpfe_dev);
1178                 if (fid == video_out->field_id) {
1179                         /* we are in-sync here,continue */
1180                         if (fid == 1 && !list_empty(&video_out->dma_queue) &&
1181                             video_out->cur_frm == video_out->next_frm)
1182                                 schedule_capture = 1;
1183                 }
1184         }
1185
1186         if (!schedule_capture)
1187                 return;
1188
1189         spin_lock(&video_out->dma_queue_lock);
1190         vpfe_video_schedule_next_buffer(video_out);
1191         spin_unlock(&video_out->dma_queue_lock);
1192         if (pipe->output_num > 1) {
1193                 spin_lock(&video_out2->dma_queue_lock);
1194                 vpfe_video_schedule_next_buffer(video_out2);
1195                 spin_unlock(&video_out2->dma_queue_lock);
1196         }
1197 }
1198
1199 /*
1200  * V4L2 subdev operations
1201  */
1202
1203 /*
1204  * resizer_ioctl() - Handle resizer module private ioctl's
1205  * @sd: pointer to v4l2 subdev structure
1206  * @cmd: configuration command
1207  * @arg: configuration argument
1208  */
1209 static long resizer_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
1210 {
1211         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1212         struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev;
1213         struct vpfe_rsz_config *user_config;
1214         int ret = -ENOIOCTLCMD;
1215
1216         if (&resizer->crop_resizer.subdev != sd)
1217                 return ret;
1218
1219         switch (cmd) {
1220         case VIDIOC_VPFE_RSZ_S_CONFIG:
1221                 user_config = (struct vpfe_rsz_config *)arg;
1222                 ret = resizer_set_configuration(resizer, user_config);
1223                 break;
1224
1225         case VIDIOC_VPFE_RSZ_G_CONFIG:
1226                 user_config = (struct vpfe_rsz_config *)arg;
1227                 if (!user_config->config) {
1228                         dev_err(dev, "error in VIDIOC_VPFE_RSZ_G_CONFIG\n");
1229                         return -EINVAL;
1230                 }
1231                 ret = resizer_get_configuration(resizer, user_config);
1232                 break;
1233         }
1234         return ret;
1235 }
1236
1237 static int resizer_do_hw_setup(struct vpfe_resizer_device *resizer)
1238 {
1239         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1240         u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input;
1241         u16 ipipeif_source = vpfe_dev->vpfe_ipipeif.output;
1242         struct resizer_params *param = &resizer->config;
1243         int ret = 0;
1244
1245         if (resizer->resizer_a.output == RESIZER_OUPUT_MEMORY ||
1246             resizer->resizer_b.output == RESIZER_OUPUT_MEMORY) {
1247                 if (ipipeif_sink == IPIPEIF_INPUT_MEMORY &&
1248                     ipipeif_source == IPIPEIF_OUTPUT_RESIZER)
1249                         ret = resizer_configure_in_single_shot_mode(resizer);
1250                 else
1251                         ret =  resizer_configure_in_continious_mode(resizer);
1252                 if (ret)
1253                         return ret;
1254                 ret = config_rsz_hw(resizer, param);
1255         }
1256         return ret;
1257 }
1258
1259 /*
1260  * resizer_set_stream() - Enable/Disable streaming on resizer subdev
1261  * @sd: pointer to v4l2 subdev structure
1262  * @enable: 1 == Enable, 0 == Disable
1263  */
1264 static int resizer_set_stream(struct v4l2_subdev *sd, int enable)
1265 {
1266         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1267
1268         if (&resizer->crop_resizer.subdev != sd)
1269                 return 0;
1270
1271         if (resizer->resizer_a.output != RESIZER_OUPUT_MEMORY)
1272                 return 0;
1273
1274         switch (enable) {
1275         case 1:
1276                 if (resizer_do_hw_setup(resizer) < 0)
1277                         return -EINVAL;
1278                 resizer_enable(resizer, enable);
1279                 break;
1280
1281         case 0:
1282                 resizer_enable(resizer, enable);
1283                 break;
1284         }
1285
1286         return 0;
1287 }
1288
1289 /*
1290  * __resizer_get_format() - helper function for getting resizer format
1291  * @sd: pointer to subdev.
1292  * @fh: V4L2 subdev file handle.
1293  * @pad: pad number.
1294  * @which: wanted subdev format.
1295  * Retun wanted mbus frame format.
1296  */
1297 static struct v4l2_mbus_framefmt *
1298 __resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
1299                      unsigned int pad, enum v4l2_subdev_format_whence which)
1300 {
1301         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1302
1303         if (which == V4L2_SUBDEV_FORMAT_TRY)
1304                 return v4l2_subdev_get_try_format(fh, pad);
1305         if (&resizer->crop_resizer.subdev == sd)
1306                 return &resizer->crop_resizer.formats[pad];
1307         if (&resizer->resizer_a.subdev == sd)
1308                 return &resizer->resizer_a.formats[pad];
1309         if (&resizer->resizer_b.subdev == sd)
1310                 return &resizer->resizer_b.formats[pad];
1311         return NULL;
1312 }
1313
1314 /*
1315  * resizer_try_format() - Handle try format by pad subdev method
1316  * @sd: pointer to subdev.
1317  * @fh: V4L2 subdev file handle.
1318  * @pad: pad num.
1319  * @fmt: pointer to v4l2 format structure.
1320  * @which: wanted subdev format.
1321  */
1322 static void
1323 resizer_try_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
1324         unsigned int pad, struct v4l2_mbus_framefmt *fmt,
1325         enum v4l2_subdev_format_whence which)
1326 {
1327         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1328         unsigned int max_out_height;
1329         unsigned int max_out_width;
1330         unsigned int i;
1331
1332         if ((&resizer->resizer_a.subdev == sd && pad == RESIZER_PAD_SINK) ||
1333             (&resizer->resizer_b.subdev == sd && pad == RESIZER_PAD_SINK) ||
1334             (&resizer->crop_resizer.subdev == sd &&
1335             (pad == RESIZER_CROP_PAD_SOURCE ||
1336             pad == RESIZER_CROP_PAD_SOURCE2 || pad == RESIZER_CROP_PAD_SINK))) {
1337                 for (i = 0; i < ARRAY_SIZE(resizer_input_formats); i++) {
1338                         if (fmt->code == resizer_input_formats[i])
1339                                 break;
1340                 }
1341                 /* If not found, use UYVY as default */
1342                 if (i >= ARRAY_SIZE(resizer_input_formats))
1343                         fmt->code = V4L2_MBUS_FMT_UYVY8_2X8;
1344
1345                 fmt->width = clamp_t(u32, fmt->width, MIN_IN_WIDTH,
1346                                         MAX_IN_WIDTH);
1347                 fmt->height = clamp_t(u32, fmt->height, MIN_IN_HEIGHT,
1348                                 MAX_IN_HEIGHT);
1349         } else if (&resizer->resizer_a.subdev == sd &&
1350                    pad == RESIZER_PAD_SOURCE) {
1351                 max_out_width = IPIPE_MAX_OUTPUT_WIDTH_A;
1352                 max_out_height = IPIPE_MAX_OUTPUT_HEIGHT_A;
1353
1354                 for (i = 0; i < ARRAY_SIZE(resizer_output_formats); i++) {
1355                         if (fmt->code == resizer_output_formats[i])
1356                                 break;
1357                 }
1358                 /* If not found, use UYVY as default */
1359                 if (i >= ARRAY_SIZE(resizer_output_formats))
1360                         fmt->code = V4L2_MBUS_FMT_UYVY8_2X8;
1361
1362                 fmt->width = clamp_t(u32, fmt->width, MIN_OUT_WIDTH,
1363                                         max_out_width);
1364                 fmt->width &= ~15;
1365                 fmt->height = clamp_t(u32, fmt->height, MIN_OUT_HEIGHT,
1366                                 max_out_height);
1367         } else if (&resizer->resizer_b.subdev == sd &&
1368                    pad == RESIZER_PAD_SOURCE) {
1369                 max_out_width = IPIPE_MAX_OUTPUT_WIDTH_B;
1370                 max_out_height = IPIPE_MAX_OUTPUT_HEIGHT_B;
1371
1372                 for (i = 0; i < ARRAY_SIZE(resizer_output_formats); i++) {
1373                         if (fmt->code == resizer_output_formats[i])
1374                                 break;
1375                 }
1376                 /* If not found, use UYVY as default */
1377                 if (i >= ARRAY_SIZE(resizer_output_formats))
1378                         fmt->code = V4L2_MBUS_FMT_UYVY8_2X8;
1379
1380                 fmt->width = clamp_t(u32, fmt->width, MIN_OUT_WIDTH,
1381                                         max_out_width);
1382                 fmt->width &= ~15;
1383                 fmt->height = clamp_t(u32, fmt->height, MIN_OUT_HEIGHT,
1384                                 max_out_height);
1385         }
1386 }
1387
1388 /*
1389  * resizer_set_format() - Handle set format by pads subdev method
1390  * @sd: pointer to v4l2 subdev structure
1391  * @fh: V4L2 subdev file handle
1392  * @fmt: pointer to v4l2 subdev format structure
1393  * return -EINVAL or zero on success
1394  */
1395 static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
1396                            struct v4l2_subdev_format *fmt)
1397 {
1398         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1399         struct v4l2_mbus_framefmt *format;
1400
1401         format = __resizer_get_format(sd, fh, fmt->pad, fmt->which);
1402         if (format == NULL)
1403                 return -EINVAL;
1404
1405         resizer_try_format(sd, fh, fmt->pad, &fmt->format, fmt->which);
1406         *format = fmt->format;
1407
1408         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
1409                 return 0;
1410
1411         if (&resizer->crop_resizer.subdev == sd) {
1412                 if (fmt->pad == RESIZER_CROP_PAD_SINK) {
1413                         resizer->crop_resizer.formats[fmt->pad] = fmt->format;
1414                 } else if (fmt->pad == RESIZER_CROP_PAD_SOURCE &&
1415                                 resizer->crop_resizer.output == RESIZER_A) {
1416                         resizer->crop_resizer.formats[fmt->pad] = fmt->format;
1417                         resizer->crop_resizer.
1418                         formats[RESIZER_CROP_PAD_SOURCE2] = fmt->format;
1419                 } else if (fmt->pad == RESIZER_CROP_PAD_SOURCE2 &&
1420                         resizer->crop_resizer.output2 == RESIZER_B) {
1421                         resizer->crop_resizer.formats[fmt->pad] = fmt->format;
1422                         resizer->crop_resizer.
1423                         formats[RESIZER_CROP_PAD_SOURCE] = fmt->format;
1424                 } else {
1425                         return -EINVAL;
1426                 }
1427         } else if (&resizer->resizer_a.subdev == sd) {
1428                 if (fmt->pad == RESIZER_PAD_SINK)
1429                         resizer->resizer_a.formats[fmt->pad] = fmt->format;
1430                 else if (fmt->pad == RESIZER_PAD_SOURCE)
1431                         resizer->resizer_a.formats[fmt->pad] = fmt->format;
1432                 else
1433                         return -EINVAL;
1434         } else if (&resizer->resizer_b.subdev == sd) {
1435                 if (fmt->pad == RESIZER_PAD_SINK)
1436                         resizer->resizer_b.formats[fmt->pad] = fmt->format;
1437                 else if (fmt->pad == RESIZER_PAD_SOURCE)
1438                         resizer->resizer_b.formats[fmt->pad] = fmt->format;
1439                 else
1440                         return -EINVAL;
1441         } else {
1442                 return -EINVAL;
1443         }
1444
1445         return 0;
1446 }
1447
1448 /*
1449  * resizer_get_format() - Retrieve the video format on a pad
1450  * @sd: pointer to v4l2 subdev structure.
1451  * @fh: V4L2 subdev file handle.
1452  * @fmt: pointer to v4l2 subdev format structure
1453  * return -EINVAL or zero on success
1454  */
1455 static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
1456                            struct v4l2_subdev_format *fmt)
1457 {
1458         struct v4l2_mbus_framefmt *format;
1459
1460         format = __resizer_get_format(sd, fh, fmt->pad, fmt->which);
1461         if (format == NULL)
1462                 return -EINVAL;
1463
1464         fmt->format = *format;
1465
1466         return 0;
1467 }
1468
1469 /*
1470  * resizer_enum_frame_size() - enum frame sizes on pads
1471  * @sd: Pointer to subdevice.
1472  * @fh: V4L2 subdev file handle.
1473  * @code: pointer to v4l2_subdev_frame_size_enum structure.
1474  */
1475 static int resizer_enum_frame_size(struct v4l2_subdev *sd,
1476                                    struct v4l2_subdev_fh *fh,
1477                                    struct v4l2_subdev_frame_size_enum *fse)
1478 {
1479         struct v4l2_mbus_framefmt format;
1480
1481         if (fse->index != 0)
1482                 return -EINVAL;
1483
1484         format.code = fse->code;
1485         format.width = 1;
1486         format.height = 1;
1487         resizer_try_format(sd, fh, fse->pad, &format,
1488                             V4L2_SUBDEV_FORMAT_TRY);
1489         fse->min_width = format.width;
1490         fse->min_height = format.height;
1491
1492         if (format.code != fse->code)
1493                 return -EINVAL;
1494
1495         format.code = fse->code;
1496         format.width = -1;
1497         format.height = -1;
1498         resizer_try_format(sd, fh, fse->pad, &format,
1499                            V4L2_SUBDEV_FORMAT_TRY);
1500         fse->max_width = format.width;
1501         fse->max_height = format.height;
1502
1503         return 0;
1504 }
1505
1506 /*
1507  * resizer_enum_mbus_code() - enum mbus codes for pads
1508  * @sd: Pointer to subdevice.
1509  * @fh: V4L2 subdev file handle
1510  * @code: pointer to v4l2_subdev_mbus_code_enum structure
1511  */
1512 static int resizer_enum_mbus_code(struct v4l2_subdev *sd,
1513                                   struct v4l2_subdev_fh *fh,
1514                                   struct v4l2_subdev_mbus_code_enum *code)
1515 {
1516         if (code->pad == RESIZER_PAD_SINK) {
1517                 if (code->index >= ARRAY_SIZE(resizer_input_formats))
1518                         return -EINVAL;
1519
1520                 code->code = resizer_input_formats[code->index];
1521         } else if (code->pad == RESIZER_PAD_SOURCE) {
1522                 if (code->index >= ARRAY_SIZE(resizer_output_formats))
1523                         return -EINVAL;
1524
1525                 code->code = resizer_output_formats[code->index];
1526         }
1527
1528         return 0;
1529 }
1530
1531 /*
1532  * resizer_init_formats() - Initialize formats on all pads
1533  * @sd: Pointer to subdevice.
1534  * @fh: V4L2 subdev file handle.
1535  *
1536  * Initialize all pad formats with default values. If fh is not NULL, try
1537  * formats are initialized on the file handle. Otherwise active formats are
1538  * initialized on the device.
1539  */
1540 static int resizer_init_formats(struct v4l2_subdev *sd,
1541                                 struct v4l2_subdev_fh *fh)
1542 {
1543         __u32 which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
1544         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1545         struct v4l2_subdev_format format;
1546
1547         if (&resizer->crop_resizer.subdev == sd) {
1548                 memset(&format, 0, sizeof(format));
1549                 format.pad = RESIZER_CROP_PAD_SINK;
1550                 format.which = which;
1551                 format.format.code = V4L2_MBUS_FMT_YUYV8_2X8;
1552                 format.format.width = MAX_IN_WIDTH;
1553                 format.format.height = MAX_IN_HEIGHT;
1554                 resizer_set_format(sd, fh, &format);
1555
1556                 memset(&format, 0, sizeof(format));
1557                 format.pad = RESIZER_CROP_PAD_SOURCE;
1558                 format.which = which;
1559                 format.format.code = V4L2_MBUS_FMT_UYVY8_2X8;
1560                 format.format.width = MAX_IN_WIDTH;
1561                 format.format.height = MAX_IN_WIDTH;
1562                 resizer_set_format(sd, fh, &format);
1563
1564                 memset(&format, 0, sizeof(format));
1565                 format.pad = RESIZER_CROP_PAD_SOURCE2;
1566                 format.which = which;
1567                 format.format.code = V4L2_MBUS_FMT_UYVY8_2X8;
1568                 format.format.width = MAX_IN_WIDTH;
1569                 format.format.height = MAX_IN_WIDTH;
1570                 resizer_set_format(sd, fh, &format);
1571         } else if (&resizer->resizer_a.subdev == sd) {
1572                 memset(&format, 0, sizeof(format));
1573                 format.pad = RESIZER_PAD_SINK;
1574                 format.which = which;
1575                 format.format.code = V4L2_MBUS_FMT_YUYV8_2X8;
1576                 format.format.width = MAX_IN_WIDTH;
1577                 format.format.height = MAX_IN_HEIGHT;
1578                 resizer_set_format(sd, fh, &format);
1579
1580                 memset(&format, 0, sizeof(format));
1581                 format.pad = RESIZER_PAD_SOURCE;
1582                 format.which = which;
1583                 format.format.code = V4L2_MBUS_FMT_UYVY8_2X8;
1584                 format.format.width = IPIPE_MAX_OUTPUT_WIDTH_A;
1585                 format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_A;
1586                 resizer_set_format(sd, fh, &format);
1587         } else if (&resizer->resizer_b.subdev == sd) {
1588                 memset(&format, 0, sizeof(format));
1589                 format.pad = RESIZER_PAD_SINK;
1590                 format.which = which;
1591                 format.format.code = V4L2_MBUS_FMT_YUYV8_2X8;
1592                 format.format.width = MAX_IN_WIDTH;
1593                 format.format.height = MAX_IN_HEIGHT;
1594                 resizer_set_format(sd, fh, &format);
1595
1596                 memset(&format, 0, sizeof(format));
1597                 format.pad = RESIZER_PAD_SOURCE;
1598                 format.which = which;
1599                 format.format.code = V4L2_MBUS_FMT_UYVY8_2X8;
1600                 format.format.width = IPIPE_MAX_OUTPUT_WIDTH_B;
1601                 format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_B;
1602                 resizer_set_format(sd, fh, &format);
1603         }
1604
1605         return 0;
1606 }
1607
1608 /* subdev core operations */
1609 static const struct v4l2_subdev_core_ops resizer_v4l2_core_ops = {
1610         .ioctl = resizer_ioctl,
1611 };
1612
1613 /* subdev internal operations */
1614 static const struct v4l2_subdev_internal_ops resizer_v4l2_internal_ops = {
1615         .open = resizer_init_formats,
1616 };
1617
1618 /* subdev video operations */
1619 static const struct v4l2_subdev_video_ops resizer_v4l2_video_ops = {
1620         .s_stream = resizer_set_stream,
1621 };
1622
1623 /* subdev pad operations */
1624 static const struct v4l2_subdev_pad_ops resizer_v4l2_pad_ops = {
1625         .enum_mbus_code = resizer_enum_mbus_code,
1626         .enum_frame_size = resizer_enum_frame_size,
1627         .get_fmt = resizer_get_format,
1628         .set_fmt = resizer_set_format,
1629 };
1630
1631 /* subdev operations */
1632 static const struct v4l2_subdev_ops resizer_v4l2_ops = {
1633         .core = &resizer_v4l2_core_ops,
1634         .video = &resizer_v4l2_video_ops,
1635         .pad = &resizer_v4l2_pad_ops,
1636 };
1637
1638 /*
1639  * Media entity operations
1640  */
1641
1642 /*
1643  * resizer_link_setup() - Setup resizer connections
1644  * @entity: Pointer to media entity structure
1645  * @local: Pointer to local pad array
1646  * @remote: Pointer to remote pad array
1647  * @flags: Link flags
1648  * return -EINVAL or zero on success
1649  */
1650 static int resizer_link_setup(struct media_entity *entity,
1651                            const struct media_pad *local,
1652                            const struct media_pad *remote, u32 flags)
1653 {
1654         struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1655         struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd);
1656         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1657         u16 ipipeif_source = vpfe_dev->vpfe_ipipeif.output;
1658         u16 ipipe_source = vpfe_dev->vpfe_ipipe.output;
1659
1660         if (&resizer->crop_resizer.subdev == sd) {
1661                 switch (local->index | media_entity_type(remote->entity)) {
1662                 case RESIZER_CROP_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
1663                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1664                                 resizer->crop_resizer.input =
1665                                         RESIZER_CROP_INPUT_NONE;
1666                                 break;
1667                         }
1668
1669                         if (resizer->crop_resizer.input !=
1670                            RESIZER_CROP_INPUT_NONE)
1671                                 return -EBUSY;
1672                         if (ipipeif_source == IPIPEIF_OUTPUT_RESIZER)
1673                                 resizer->crop_resizer.input =
1674                                                 RESIZER_CROP_INPUT_IPIPEIF;
1675                         else if (ipipe_source == IPIPE_OUTPUT_RESIZER)
1676                                         resizer->crop_resizer.input =
1677                                                 RESIZER_CROP_INPUT_IPIPE;
1678                         else
1679                                 return -EINVAL;
1680                         break;
1681
1682                 case RESIZER_CROP_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
1683                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1684                                 resizer->crop_resizer.output =
1685                                 RESIZER_CROP_OUTPUT_NONE;
1686                                 break;
1687                         }
1688                         if (resizer->crop_resizer.output !=
1689                             RESIZER_CROP_OUTPUT_NONE)
1690                                 return -EBUSY;
1691                         resizer->crop_resizer.output = RESIZER_A;
1692                         break;
1693
1694                 case RESIZER_CROP_PAD_SOURCE2 | MEDIA_ENT_T_V4L2_SUBDEV:
1695                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1696                                 resizer->crop_resizer.output2 =
1697                                         RESIZER_CROP_OUTPUT_NONE;
1698                                 break;
1699                         }
1700                         if (resizer->crop_resizer.output2 !=
1701                             RESIZER_CROP_OUTPUT_NONE)
1702                                 return -EBUSY;
1703                         resizer->crop_resizer.output2 = RESIZER_B;
1704                         break;
1705
1706                 default:
1707                         return -EINVAL;
1708                 }
1709         } else if (&resizer->resizer_a.subdev == sd) {
1710                 switch (local->index | media_entity_type(remote->entity)) {
1711                 case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
1712                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1713                                 resizer->resizer_a.input = RESIZER_INPUT_NONE;
1714                                 break;
1715                         }
1716                         if (resizer->resizer_a.input != RESIZER_INPUT_NONE)
1717                                 return -EBUSY;
1718                         resizer->resizer_a.input = RESIZER_INPUT_CROP_RESIZER;
1719                         break;
1720
1721                 case RESIZER_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
1722                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1723                                 resizer->resizer_a.output = RESIZER_OUTPUT_NONE;
1724                                 break;
1725                         }
1726                         if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE)
1727                                 return -EBUSY;
1728                         resizer->resizer_a.output = RESIZER_OUPUT_MEMORY;
1729                         break;
1730
1731                 default:
1732                         return -EINVAL;
1733                 }
1734         } else if (&resizer->resizer_b.subdev == sd) {
1735                 switch (local->index | media_entity_type(remote->entity)) {
1736                 case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
1737                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1738                                 resizer->resizer_b.input = RESIZER_INPUT_NONE;
1739                                 break;
1740                         }
1741                         if (resizer->resizer_b.input != RESIZER_INPUT_NONE)
1742                                 return -EBUSY;
1743                         resizer->resizer_b.input = RESIZER_INPUT_CROP_RESIZER;
1744                         break;
1745
1746                 case RESIZER_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
1747                         if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1748                                 resizer->resizer_b.output = RESIZER_OUTPUT_NONE;
1749                                 break;
1750                         }
1751                         if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE)
1752                                 return -EBUSY;
1753                         resizer->resizer_b.output = RESIZER_OUPUT_MEMORY;
1754                         break;
1755
1756                 default:
1757                         return -EINVAL;
1758                 }
1759         } else {
1760                 return -EINVAL;
1761         }
1762
1763         return 0;
1764 }
1765
1766 static const struct media_entity_operations resizer_media_ops = {
1767         .link_setup = resizer_link_setup,
1768 };
1769
1770 /*
1771  * vpfe_resizer_unregister_entities() - Unregister entity
1772  * @vpfe_rsz - pointer to resizer subdevice structure.
1773  */
1774 void vpfe_resizer_unregister_entities(struct vpfe_resizer_device *vpfe_rsz)
1775 {
1776         /* unregister video devices */
1777         vpfe_video_unregister(&vpfe_rsz->resizer_a.video_out);
1778         vpfe_video_unregister(&vpfe_rsz->resizer_b.video_out);
1779
1780         /* unregister subdev */
1781         v4l2_device_unregister_subdev(&vpfe_rsz->crop_resizer.subdev);
1782         v4l2_device_unregister_subdev(&vpfe_rsz->resizer_a.subdev);
1783         v4l2_device_unregister_subdev(&vpfe_rsz->resizer_b.subdev);
1784         /* cleanup entity */
1785         media_entity_cleanup(&vpfe_rsz->crop_resizer.subdev.entity);
1786         media_entity_cleanup(&vpfe_rsz->resizer_a.subdev.entity);
1787         media_entity_cleanup(&vpfe_rsz->resizer_b.subdev.entity);
1788 }
1789
1790 /*
1791  * vpfe_resizer_register_entities() - Register entity
1792  * @resizer - pointer to resizer devive.
1793  * @vdev: pointer to v4l2 device structure.
1794  */
1795 int vpfe_resizer_register_entities(struct vpfe_resizer_device *resizer,
1796                                    struct v4l2_device *vdev)
1797 {
1798         struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
1799         unsigned int flags = 0;
1800         int ret;
1801
1802         /* Register the crop resizer subdev */
1803         ret = v4l2_device_register_subdev(vdev, &resizer->crop_resizer.subdev);
1804         if (ret < 0) {
1805                 pr_err("Failed to register crop resizer as v4l2-subdev\n");
1806                 return ret;
1807         }
1808         /* Register Resizer-A subdev */
1809         ret = v4l2_device_register_subdev(vdev, &resizer->resizer_a.subdev);
1810         if (ret < 0) {
1811                 pr_err("Failed to register resizer-a as v4l2-subdev\n");
1812                 return ret;
1813         }
1814         /* Register Resizer-B subdev */
1815         ret = v4l2_device_register_subdev(vdev, &resizer->resizer_b.subdev);
1816         if (ret < 0) {
1817                 pr_err("Failed to register resizer-b as v4l2-subdev\n");
1818                 return ret;
1819         }
1820         /* Register video-out device for resizer-a */
1821         ret = vpfe_video_register(&resizer->resizer_a.video_out, vdev);
1822         if (ret) {
1823                 pr_err("Failed to register RSZ-A video-out device\n");
1824                 goto out_video_out2_register;
1825         }
1826         resizer->resizer_a.video_out.vpfe_dev = vpfe_dev;
1827
1828         /* Register video-out device for resizer-b */
1829         ret = vpfe_video_register(&resizer->resizer_b.video_out, vdev);
1830         if (ret) {
1831                 pr_err("Failed to register RSZ-B video-out device\n");
1832                 goto out_video_out2_register;
1833         }
1834         resizer->resizer_b.video_out.vpfe_dev = vpfe_dev;
1835
1836         /* create link between Resizer Crop----> Resizer A*/
1837         ret = media_entity_create_link(&resizer->crop_resizer.subdev.entity, 1,
1838                                 &resizer->resizer_a.subdev.entity,
1839                                 0, flags);
1840         if (ret < 0)
1841                 goto out_create_link;
1842
1843         /* create link between Resizer Crop----> Resizer B*/
1844         ret = media_entity_create_link(&resizer->crop_resizer.subdev.entity, 2,
1845                                 &resizer->resizer_b.subdev.entity,
1846                                 0, flags);
1847         if (ret < 0)
1848                 goto out_create_link;
1849
1850         /* create link between Resizer A ----> video out */
1851         ret = media_entity_create_link(&resizer->resizer_a.subdev.entity, 1,
1852                 &resizer->resizer_a.video_out.video_dev.entity, 0, flags);
1853         if (ret < 0)
1854                 goto out_create_link;
1855
1856         /* create link between Resizer B ----> video out */
1857         ret = media_entity_create_link(&resizer->resizer_b.subdev.entity, 1,
1858                 &resizer->resizer_b.video_out.video_dev.entity, 0, flags);
1859         if (ret < 0)
1860                 goto out_create_link;
1861
1862         return 0;
1863
1864 out_create_link:
1865         vpfe_video_unregister(&resizer->resizer_b.video_out);
1866 out_video_out2_register:
1867         vpfe_video_unregister(&resizer->resizer_a.video_out);
1868         v4l2_device_unregister_subdev(&resizer->crop_resizer.subdev);
1869         v4l2_device_unregister_subdev(&resizer->resizer_a.subdev);
1870         v4l2_device_unregister_subdev(&resizer->resizer_b.subdev);
1871         media_entity_cleanup(&resizer->crop_resizer.subdev.entity);
1872         media_entity_cleanup(&resizer->resizer_a.subdev.entity);
1873         media_entity_cleanup(&resizer->resizer_b.subdev.entity);
1874         return ret;
1875 }
1876
1877 /*
1878  * vpfe_resizer_init() - resizer device initialization.
1879  * @vpfe_rsz - pointer to resizer device
1880  * @pdev: platform device pointer.
1881  */
1882 int vpfe_resizer_init(struct vpfe_resizer_device *vpfe_rsz,
1883                       struct platform_device *pdev)
1884 {
1885         struct v4l2_subdev *sd = &vpfe_rsz->crop_resizer.subdev;
1886         struct media_pad *pads = &vpfe_rsz->crop_resizer.pads[0];
1887         struct media_entity *me = &sd->entity;
1888         static resource_size_t  res_len;
1889         struct resource *res;
1890         int ret;
1891
1892         res = platform_get_resource(pdev, IORESOURCE_MEM, 5);
1893         if (!res)
1894                 return -ENOENT;
1895
1896         res_len = resource_size(res);
1897         res = request_mem_region(res->start, res_len, res->name);
1898         if (!res)
1899                 return -EBUSY;
1900
1901         vpfe_rsz->base_addr = ioremap_nocache(res->start, res_len);
1902         if (!vpfe_rsz->base_addr)
1903                 return -EBUSY;
1904
1905         v4l2_subdev_init(sd, &resizer_v4l2_ops);
1906         sd->internal_ops = &resizer_v4l2_internal_ops;
1907         strlcpy(sd->name, "DAVINCI RESIZER CROP", sizeof(sd->name));
1908         sd->grp_id = 1 << 16;   /* group ID for davinci subdevs */
1909         v4l2_set_subdevdata(sd, vpfe_rsz);
1910         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1911
1912         pads[RESIZER_CROP_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1913         pads[RESIZER_CROP_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1914         pads[RESIZER_CROP_PAD_SOURCE2].flags = MEDIA_PAD_FL_SOURCE;
1915
1916         vpfe_rsz->crop_resizer.input = RESIZER_CROP_INPUT_NONE;
1917         vpfe_rsz->crop_resizer.output = RESIZER_CROP_OUTPUT_NONE;
1918         vpfe_rsz->crop_resizer.output2 = RESIZER_CROP_OUTPUT_NONE;
1919         vpfe_rsz->crop_resizer.rsz_device = vpfe_rsz;
1920         me->ops = &resizer_media_ops;
1921         ret = media_entity_init(me, RESIZER_CROP_PADS_NUM, pads, 0);
1922         if (ret)
1923                 return ret;
1924
1925         sd = &vpfe_rsz->resizer_a.subdev;
1926         pads = &vpfe_rsz->resizer_a.pads[0];
1927         me = &sd->entity;
1928
1929         v4l2_subdev_init(sd, &resizer_v4l2_ops);
1930         sd->internal_ops = &resizer_v4l2_internal_ops;
1931         strlcpy(sd->name, "DAVINCI RESIZER A", sizeof(sd->name));
1932         sd->grp_id = 1 << 16;   /* group ID for davinci subdevs */
1933         v4l2_set_subdevdata(sd, vpfe_rsz);
1934         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1935
1936         pads[RESIZER_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1937         pads[RESIZER_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1938
1939         vpfe_rsz->resizer_a.input = RESIZER_INPUT_NONE;
1940         vpfe_rsz->resizer_a.output = RESIZER_OUTPUT_NONE;
1941         vpfe_rsz->resizer_a.rsz_device = vpfe_rsz;
1942         me->ops = &resizer_media_ops;
1943         ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0);
1944         if (ret)
1945                 return ret;
1946
1947         sd = &vpfe_rsz->resizer_b.subdev;
1948         pads = &vpfe_rsz->resizer_b.pads[0];
1949         me = &sd->entity;
1950
1951         v4l2_subdev_init(sd, &resizer_v4l2_ops);
1952         sd->internal_ops = &resizer_v4l2_internal_ops;
1953         strlcpy(sd->name, "DAVINCI RESIZER B", sizeof(sd->name));
1954         sd->grp_id = 1 << 16;   /* group ID for davinci subdevs */
1955         v4l2_set_subdevdata(sd, vpfe_rsz);
1956         sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1957
1958         pads[RESIZER_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1959         pads[RESIZER_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1960
1961         vpfe_rsz->resizer_b.input = RESIZER_INPUT_NONE;
1962         vpfe_rsz->resizer_b.output = RESIZER_OUTPUT_NONE;
1963         vpfe_rsz->resizer_b.rsz_device = vpfe_rsz;
1964         me->ops = &resizer_media_ops;
1965         ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0);
1966         if (ret)
1967                 return ret;
1968
1969         vpfe_rsz->resizer_a.video_out.ops = &resizer_a_video_ops;
1970         vpfe_rsz->resizer_a.video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1971         ret = vpfe_video_init(&vpfe_rsz->resizer_a.video_out, "RSZ-A");
1972         if (ret) {
1973                 pr_err("Failed to init RSZ video-out device\n");
1974                 return ret;
1975         }
1976         vpfe_rsz->resizer_b.video_out.ops = &resizer_b_video_ops;
1977         vpfe_rsz->resizer_b.video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1978         ret = vpfe_video_init(&vpfe_rsz->resizer_b.video_out, "RSZ-B");
1979         if (ret) {
1980                 pr_err("Failed to init RSZ video-out2 device\n");
1981                 return ret;
1982         }
1983         memset(&vpfe_rsz->config, 0, sizeof(struct resizer_params));
1984
1985         return 0;
1986 }
1987
1988 void
1989 vpfe_resizer_cleanup(struct vpfe_resizer_device *vpfe_rsz,
1990                      struct platform_device *pdev)
1991 {
1992         struct resource *res;
1993
1994         iounmap(vpfe_rsz->base_addr);
1995         res = platform_get_resource(pdev, IORESOURCE_MEM, 5);
1996         if (res)
1997                 release_mem_region(res->start,
1998                                         resource_size(res));
1999 }