drivers/video/ipu_disp.c

   1 /*
   2  * Porting to u-boot:
   3  *
   4  * (C) Copyright 2010
   5  * Stefano Babic, DENX Software Engineering, sbabic@denx.de
   6  *
   7  * Linux IPU driver for MX51:
   8  *
   9  * (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
  10  *
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 /* #define DEBUG */
  15
  16 #include <common.h>
  17 #include <linux/types.h>
  18 #include <linux/errno.h>
  19 #include <asm/io.h>
  20 #include <asm/arch/imx-regs.h>
  21 #include <asm/arch/sys_proto.h>
  22 #include "ipu.h"
  23 #include "ipu_regs.h"
  24
  25 enum csc_type_t {
  26         RGB2YUV = 0,
  27         YUV2RGB,
  28         RGB2RGB,
  29         YUV2YUV,
  30         CSC_NONE,
  31         CSC_NUM
  32 };
  33
  34 struct dp_csc_param_t {
  35         int mode;
  36         const int (*coeff)[5][3];
  37 };
  38
  39 #define SYNC_WAVE 0
  40
  41 /* DC display ID assignments */
  42 #define DC_DISP_ID_SYNC(di)     (di)
  43 #define DC_DISP_ID_SERIAL       2
  44 #define DC_DISP_ID_ASYNC        3
  45
  46 int dmfc_type_setup;
  47 static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23;
  48 int g_di1_tvout;
  49
  50 extern struct clk *g_ipu_clk;
  51 extern struct clk *g_ldb_clk;
  52 extern struct clk *g_di_clk[2];
  53 extern struct clk *g_pixel_clk[2];
  54
  55 extern unsigned char g_ipu_clk_enabled;
  56 extern unsigned char g_dc_di_assignment[];
  57
  58 void ipu_dmfc_init(int dmfc_type, int first)
  59 {
  60         u32 dmfc_wr_chan, dmfc_dp_chan;
  61
  62         if (first) {
  63                 if (dmfc_type_setup > dmfc_type)
  64                         dmfc_type = dmfc_type_setup;
  65                 else
  66                         dmfc_type_setup = dmfc_type;
  67
  68                 /* disable DMFC-IC channel*/
  69                 __raw_writel(0x2, DMFC_IC_CTRL);
  70         } else if (dmfc_type_setup >= DMFC_HIGH_RESOLUTION_DC) {
  71                 printf("DMFC high resolution has set, will not change\n");
  72                 return;
  73         } else
  74                 dmfc_type_setup = dmfc_type;
  75
  76         if (dmfc_type == DMFC_HIGH_RESOLUTION_DC) {
  77                 /* 1 - segment 0~3;
  78                  * 5B - segement 4, 5;
  79                  * 5F - segement 6, 7;
  80                  * 1C, 2C and 6B, 6F unused;
  81                  */
  82                 debug("IPU DMFC DC HIGH RES: 1(0~3), 5B(4,5), 5F(6,7)\n");
  83                 dmfc_wr_chan = 0x00000088;
  84                 dmfc_dp_chan = 0x00009694;
  85                 dmfc_size_28 = 256 * 4;
  86                 dmfc_size_29 = 0;
  87                 dmfc_size_24 = 0;
  88                 dmfc_size_27 = 128 * 4;
  89                 dmfc_size_23 = 128 * 4;
  90         } else if (dmfc_type == DMFC_HIGH_RESOLUTION_DP) {
  91                 /* 1 - segment 0, 1;
  92                  * 5B - segement 2~5;
  93                  * 5F - segement 6,7;
  94                  * 1C, 2C and 6B, 6F unused;
  95                  */
  96                 debug("IPU DMFC DP HIGH RES: 1(0,1), 5B(2~5), 5F(6,7)\n");
  97                 dmfc_wr_chan = 0x00000090;
  98                 dmfc_dp_chan = 0x0000968a;
  99                 dmfc_size_28 = 128 * 4;
 100                 dmfc_size_29 = 0;
 101                 dmfc_size_24 = 0;
 102                 dmfc_size_27 = 128 * 4;
 103                 dmfc_size_23 = 256 * 4;
 104         } else if (dmfc_type == DMFC_HIGH_RESOLUTION_ONLY_DP) {
 105                 /* 5B - segement 0~3;
 106                  * 5F - segement 4~7;
 107                  * 1, 1C, 2C and 6B, 6F unused;
 108                  */
 109                 debug("IPU DMFC ONLY-DP HIGH RES: 5B(0~3), 5F(4~7)\n");
 110                 dmfc_wr_chan = 0x00000000;
 111                 dmfc_dp_chan = 0x00008c88;
 112                 dmfc_size_28 = 0;
 113                 dmfc_size_29 = 0;
 114                 dmfc_size_24 = 0;
 115                 dmfc_size_27 = 256 * 4;
 116                 dmfc_size_23 = 256 * 4;
 117         } else {
 118                 /* 1 - segment 0, 1;
 119                  * 5B - segement 4, 5;
 120                  * 5F - segement 6, 7;
 121                  * 1C, 2C and 6B, 6F unused;
 122                  */
 123                 debug("IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)\n");
 124                 dmfc_wr_chan = 0x00000090;
 125                 dmfc_dp_chan = 0x00009694;
 126                 dmfc_size_28 = 128 * 4;
 127                 dmfc_size_29 = 0;
 128                 dmfc_size_24 = 0;
 129                 dmfc_size_27 = 128 * 4;
 130                 dmfc_size_23 = 128 * 4;
 131         }
 132         __raw_writel(dmfc_wr_chan, DMFC_WR_CHAN);
 133         __raw_writel(0x202020F6, DMFC_WR_CHAN_DEF);
 134         __raw_writel(dmfc_dp_chan, DMFC_DP_CHAN);
 135         /* Enable chan 5 watermark set at 5 bursts and clear at 7 bursts */
 136         __raw_writel(0x2020F6F6, DMFC_DP_CHAN_DEF);
 137 }
 138
 139 void ipu_dmfc_set_wait4eot(int dma_chan, int width)
 140 {
 141         u32 dmfc_gen1 = __raw_readl(DMFC_GENERAL1);
 142
 143         if (width >= HIGH_RESOLUTION_WIDTH) {
 144                 if (dma_chan == 23)
 145                         ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DP, 0);
 146                 else if (dma_chan == 28)
 147                         ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DC, 0);
 148         }
 149
 150         if (dma_chan == 23) { /*5B*/
 151                 if (dmfc_size_23 / width > 3)
 152                         dmfc_gen1 |= 1UL << 20;
 153                 else
 154                         dmfc_gen1 &= ~(1UL << 20);
 155         } else if (dma_chan == 24) { /*6B*/
 156                 if (dmfc_size_24 / width > 1)
 157                         dmfc_gen1 |= 1UL << 22;
 158                 else
 159                         dmfc_gen1 &= ~(1UL << 22);
 160         } else if (dma_chan == 27) { /*5F*/
 161                 if (dmfc_size_27 / width > 2)
 162                         dmfc_gen1 |= 1UL << 21;
 163                 else
 164                         dmfc_gen1 &= ~(1UL << 21);
 165         } else if (dma_chan == 28) { /*1*/
 166                 if (dmfc_size_28 / width > 2)
 167                         dmfc_gen1 |= 1UL << 16;
 168                 else
 169                         dmfc_gen1 &= ~(1UL << 16);
 170         } else if (dma_chan == 29) { /*6F*/
 171                 if (dmfc_size_29 / width > 1)
 172                         dmfc_gen1 |= 1UL << 23;
 173                 else
 174                         dmfc_gen1 &= ~(1UL << 23);
 175         }
 176
 177         __raw_writel(dmfc_gen1, DMFC_GENERAL1);
 178 }
 179
 180 static void ipu_di_data_wave_config(int di,
 181                                      int wave_gen,
 182                                      int access_size, int component_size)
 183 {
 184         u32 reg;
 185         reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
 186             (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
 187         __raw_writel(reg, DI_DW_GEN(di, wave_gen));
 188 }
 189
 190 static void ipu_di_data_pin_config(int di, int wave_gen, int di_pin, int set,
 191                                     int up, int down)
 192 {
 193         u32 reg;
 194
 195         reg = __raw_readl(DI_DW_GEN(di, wave_gen));
 196         reg &= ~(0x3 << (di_pin * 2));
 197         reg |= set << (di_pin * 2);
 198         __raw_writel(reg, DI_DW_GEN(di, wave_gen));
 199
 200         __raw_writel((down << 16) | up, DI_DW_SET(di, wave_gen, set));
 201 }
 202
 203 static void ipu_di_sync_config(int di, int wave_gen,
 204                                 int run_count, int run_src,
 205                                 int offset_count, int offset_src,
 206                                 int repeat_count, int cnt_clr_src,
 207                                 int cnt_polarity_gen_en,
 208                                 int cnt_polarity_clr_src,
 209                                 int cnt_polarity_trigger_src,
 210                                 int cnt_up, int cnt_down)
 211 {
 212         u32 reg;
 213
 214         if ((run_count >= 0x1000) || (offset_count >= 0x1000) ||
 215                 (repeat_count >= 0x1000) ||
 216                 (cnt_up >= 0x400) || (cnt_down >= 0x400)) {
 217                 printf("DI%d counters out of range.\n", di);
 218                 return;
 219         }
 220
 221         reg = (run_count << 19) | (++run_src << 16) |
 222             (offset_count << 3) | ++offset_src;
 223         __raw_writel(reg, DI_SW_GEN0(di, wave_gen));
 224         reg = (cnt_polarity_gen_en << 29) | (++cnt_clr_src << 25) |
 225             (++cnt_polarity_trigger_src << 12) | (++cnt_polarity_clr_src << 9);
 226         reg |= (cnt_down << 16) | cnt_up;
 227         if (repeat_count == 0) {
 228                 /* Enable auto reload */
 229                 reg |= 0x10000000;
 230         }
 231         __raw_writel(reg, DI_SW_GEN1(di, wave_gen));
 232         reg = __raw_readl(DI_STP_REP(di, wave_gen));
 233         reg &= ~(0xFFFF << (16 * ((wave_gen - 1) & 0x1)));
 234         reg |= repeat_count << (16 * ((wave_gen - 1) & 0x1));
 235         __raw_writel(reg, DI_STP_REP(di, wave_gen));
 236 }
 237
 238 static void ipu_dc_map_config(int map, int byte_num, int offset, int mask)
 239 {
 240         int ptr = map * 3 + byte_num;
 241         u32 reg;
 242
 243         reg = __raw_readl(DC_MAP_CONF_VAL(ptr));
 244         reg &= ~(0xFFFF << (16 * (ptr & 0x1)));
 245         reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1));
 246         __raw_writel(reg, DC_MAP_CONF_VAL(ptr));
 247
 248         reg = __raw_readl(DC_MAP_CONF_PTR(map));
 249         reg &= ~(0x1F << ((16 * (map & 0x1)) + (5 * byte_num)));
 250         reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num));
 251         __raw_writel(reg, DC_MAP_CONF_PTR(map));
 252 }
 253
 254 static void ipu_dc_map_clear(int map)
 255 {
 256         u32 reg = __raw_readl(DC_MAP_CONF_PTR(map));
 257         __raw_writel(reg & ~(0xFFFF << (16 * (map & 0x1))),
 258                      DC_MAP_CONF_PTR(map));
 259 }
 260
 261 static void ipu_dc_write_tmpl(int word, u32 opcode, u32 operand, int map,
 262                                int wave, int glue, int sync)
 263 {
 264         u32 reg;
 265         int stop = 1;
 266
 267         reg = sync;
 268         reg |= (glue << 4);
 269         reg |= (++wave << 11);
 270         reg |= (++map << 15);
 271         reg |= (operand << 20) & 0xFFF00000;
 272         __raw_writel(reg, ipu_dc_tmpl_reg + word * 2);
 273
 274         reg = (operand >> 12);
 275         reg |= opcode << 4;
 276         reg |= (stop << 9);
 277         __raw_writel(reg, ipu_dc_tmpl_reg + word * 2 + 1);
 278 }
 279
 280 static void ipu_dc_link_event(int chan, int event, int addr, int priority)
 281 {
 282         u32 reg;
 283
 284         reg = __raw_readl(DC_RL_CH(chan, event));
 285         reg &= ~(0xFFFF << (16 * (event & 0x1)));
 286         reg |= ((addr << 8) | priority) << (16 * (event & 0x1));
 287         __raw_writel(reg, DC_RL_CH(chan, event));
 288 }
 289
 290 /* Y = R *  1.200 + G *  2.343 + B *  .453 + 0.250;
 291  * U = R * -.672 + G * -1.328 + B *  2.000 + 512.250.;
 292  * V = R *  2.000 + G * -1.672 + B * -.328 + 512.250.;
 293  */
 294 static const int rgb2ycbcr_coeff[5][3] = {
 295         {0x4D, 0x96, 0x1D},
 296         {0x3D5, 0x3AB, 0x80},
 297         {0x80, 0x395, 0x3EB},
 298         {0x0000, 0x0200, 0x0200},       /* B0, B1, B2 */
 299         {0x2, 0x2, 0x2},        /* S0, S1, S2 */
 300 };
 301
 302 /* R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
 303  * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
 304  * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
 305  */
 306 static const int ycbcr2rgb_coeff[5][3] = {
 307         {0x095, 0x000, 0x0CC},
 308         {0x095, 0x3CE, 0x398},
 309         {0x095, 0x0FF, 0x000},
 310         {0x3E42, 0x010A, 0x3DD6},       /*B0,B1,B2 */
 311         {0x1, 0x1, 0x1},        /*S0,S1,S2 */
 312 };
 313
 314 #define mask_a(a) ((u32)(a) & 0x3FF)
 315 #define mask_b(b) ((u32)(b) & 0x3FFF)
 316
 317 /* Pls keep S0, S1 and S2 as 0x2 by using this convertion */
 318 static int rgb_to_yuv(int n, int red, int green, int blue)
 319 {
 320         int c;
 321         c = red * rgb2ycbcr_coeff[n][0];
 322         c += green * rgb2ycbcr_coeff[n][1];
 323         c += blue * rgb2ycbcr_coeff[n][2];
 324         c /= 16;
 325         c += rgb2ycbcr_coeff[3][n] * 4;
 326         c += 8;
 327         c /= 16;
 328         if (c < 0)
 329                 c = 0;
 330         if (c > 255)
 331                 c = 255;
 332         return c;
 333 }
 334
 335 /*
 336  * Row is for BG:       RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
 337  * Column is for FG:    RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
 338  */
 339 static struct dp_csc_param_t dp_csc_array[CSC_NUM][CSC_NUM] = {
 340         {
 341                 {DP_COM_CONF_CSC_DEF_BOTH, &rgb2ycbcr_coeff},
 342                 {0, 0},
 343                 {0, 0},
 344                 {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff},
 345                 {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff}
 346         },
 347         {
 348                 {0, 0},
 349                 {DP_COM_CONF_CSC_DEF_BOTH, &ycbcr2rgb_coeff},
 350                 {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff},
 351                 {0, 0},
 352                 {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff}
 353         },
 354         {
 355                 {0, 0},
 356                 {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
 357                 {0, 0},
 358                 {0, 0},
 359                 {0, 0}
 360         },
 361         {
 362                 {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
 363                 {0, 0},
 364                 {0, 0},
 365                 {0, 0},
 366                 {0, 0}
 367         },
 368         {
 369                 {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
 370                 {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
 371                 {0, 0},
 372                 {0, 0},
 373                 {0, 0}
 374         }
 375 };
 376
 377 static enum csc_type_t fg_csc_type = CSC_NONE, bg_csc_type = CSC_NONE;
 378 static int color_key_4rgb = 1;
 379
 380 static void ipu_dp_csc_setup(int dp, struct dp_csc_param_t dp_csc_param,
 381                         unsigned char srm_mode_update)
 382 {
 383         u32 reg;
 384         const int (*coeff)[5][3];
 385
 386         if (dp_csc_param.mode >= 0) {
 387                 reg = __raw_readl(DP_COM_CONF());
 388                 reg &= ~DP_COM_CONF_CSC_DEF_MASK;
 389                 reg |= dp_csc_param.mode;
 390                 __raw_writel(reg, DP_COM_CONF());
 391         }
 392
 393         coeff = dp_csc_param.coeff;
 394
 395         if (coeff) {
 396                 __raw_writel(mask_a((*coeff)[0][0]) |
 397                                 (mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0());
 398                 __raw_writel(mask_a((*coeff)[0][2]) |
 399                                 (mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1());
 400                 __raw_writel(mask_a((*coeff)[1][1]) |
 401                                 (mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2());
 402                 __raw_writel(mask_a((*coeff)[2][0]) |
 403                                 (mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3());
 404                 __raw_writel(mask_a((*coeff)[2][2]) |
 405                                 (mask_b((*coeff)[3][0]) << 16) |
 406                                 ((*coeff)[4][0] << 30), DP_CSC_0());
 407                 __raw_writel(mask_b((*coeff)[3][1]) | ((*coeff)[4][1] << 14) |
 408                                 (mask_b((*coeff)[3][2]) << 16) |
 409                                 ((*coeff)[4][2] << 30), DP_CSC_1());
 410         }
 411
 412         if (srm_mode_update) {
 413                 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
 414                 __raw_writel(reg, IPU_SRM_PRI2);
 415         }
 416 }
 417
 418 int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
 419                  uint32_t out_pixel_fmt)
 420 {
 421         int in_fmt, out_fmt;
 422         int dp;
 423         int partial = 0;
 424         uint32_t reg;
 425
 426         if (channel == MEM_FG_SYNC) {
 427                 dp = DP_SYNC;
 428                 partial = 1;
 429         } else if (channel == MEM_BG_SYNC) {
 430                 dp = DP_SYNC;
 431                 partial = 0;
 432         } else if (channel == MEM_BG_ASYNC0) {
 433                 dp = DP_ASYNC0;
 434                 partial = 0;
 435         } else {
 436                 return -EINVAL;
 437         }
 438
 439         in_fmt = format_to_colorspace(in_pixel_fmt);
 440         out_fmt = format_to_colorspace(out_pixel_fmt);
 441
 442         if (partial) {
 443                 if (in_fmt == RGB) {
 444                         if (out_fmt == RGB)
 445                                 fg_csc_type = RGB2RGB;
 446                         else
 447                                 fg_csc_type = RGB2YUV;
 448                 } else {
 449                         if (out_fmt == RGB)
 450                                 fg_csc_type = YUV2RGB;
 451                         else
 452                                 fg_csc_type = YUV2YUV;
 453                 }
 454         } else {
 455                 if (in_fmt == RGB) {
 456                         if (out_fmt == RGB)
 457                                 bg_csc_type = RGB2RGB;
 458                         else
 459                                 bg_csc_type = RGB2YUV;
 460                 } else {
 461                         if (out_fmt == RGB)
 462                                 bg_csc_type = YUV2RGB;
 463                         else
 464                                 bg_csc_type = YUV2YUV;
 465                 }
 466         }
 467
 468         /* Transform color key from rgb to yuv if CSC is enabled */
 469         reg = __raw_readl(DP_COM_CONF());
 470         if (color_key_4rgb && (reg & DP_COM_CONF_GWCKE) &&
 471                 (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
 472                 ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
 473                 ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
 474                 ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB)))) {
 475                 int red, green, blue;
 476                 int y, u, v;
 477                 uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL()) &
 478                         0xFFFFFFL;
 479
 480                 debug("_ipu_dp_init color key 0x%x need change to yuv fmt!\n",
 481                         color_key);
 482
 483                 red = (color_key >> 16) & 0xFF;
 484                 green = (color_key >> 8) & 0xFF;
 485                 blue = color_key & 0xFF;
 486
 487                 y = rgb_to_yuv(0, red, green, blue);
 488                 u = rgb_to_yuv(1, red, green, blue);
 489                 v = rgb_to_yuv(2, red, green, blue);
 490                 color_key = (y << 16) | (u << 8) | v;
 491
 492                 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
 493                 __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
 494                 color_key_4rgb = 0;
 495
 496                 debug("_ipu_dp_init color key change to yuv fmt 0x%x!\n",
 497                         color_key);
 498         }
 499
 500         ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 1);
 501
 502         return 0;
 503 }
 504
 505 void ipu_dp_uninit(ipu_channel_t channel)
 506 {
 507         int dp;
 508         int partial = 0;
 509
 510         if (channel == MEM_FG_SYNC) {
 511                 dp = DP_SYNC;
 512                 partial = 1;
 513         } else if (channel == MEM_BG_SYNC) {
 514                 dp = DP_SYNC;
 515                 partial = 0;
 516         } else if (channel == MEM_BG_ASYNC0) {
 517                 dp = DP_ASYNC0;
 518                 partial = 0;
 519         } else {
 520                 return;
 521         }
 522
 523         if (partial)
 524                 fg_csc_type = CSC_NONE;
 525         else
 526                 bg_csc_type = CSC_NONE;
 527
 528         ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 0);
 529 }
 530
 531 void ipu_dc_init(int dc_chan, int di, unsigned char interlaced)
 532 {
 533         u32 reg = 0;
 534
 535         if ((dc_chan == 1) || (dc_chan == 5)) {
 536                 if (interlaced) {
 537                         ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 3);
 538                         ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 2);
 539                         ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 1);
 540                 } else {
 541                         if (di) {
 542                                 ipu_dc_link_event(dc_chan, DC_EVT_NL, 2, 3);
 543                                 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 3, 2);
 544                                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
 545                                         4, 1);
 546                         } else {
 547                                 ipu_dc_link_event(dc_chan, DC_EVT_NL, 5, 3);
 548                                 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 6, 2);
 549                                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
 550                                         7, 1);
 551                         }
 552                 }
 553                 ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
 554                 ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
 555                 ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
 556                 ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
 557                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
 558                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
 559
 560                 reg = 0x2;
 561                 reg |= DC_DISP_ID_SYNC(di) << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
 562                 reg |= di << 2;
 563                 if (interlaced)
 564                         reg |= DC_WR_CH_CONF_FIELD_MODE;
 565         } else if ((dc_chan == 8) || (dc_chan == 9)) {
 566                 /* async channels */
 567                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0x64, 1);
 568                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0x64, 1);
 569
 570                 reg = 0x3;
 571                 reg |= DC_DISP_ID_SERIAL << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
 572         }
 573         __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
 574
 575         __raw_writel(0x00000000, DC_WR_CH_ADDR(dc_chan));
 576
 577         __raw_writel(0x00000084, DC_GEN);
 578 }
 579
 580 void ipu_dc_uninit(int dc_chan)
 581 {
 582         if ((dc_chan == 1) || (dc_chan == 5)) {
 583                 ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 0);
 584                 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 0);
 585                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 0);
 586                 ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
 587                 ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
 588                 ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
 589                 ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
 590                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
 591                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
 592         } else if ((dc_chan == 8) || (dc_chan == 9)) {
 593                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_0, 0, 0);
 594                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_1, 0, 0);
 595                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_0, 0, 0);
 596                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_1, 0, 0);
 597                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0, 0);
 598                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0, 0);
 599                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_0, 0, 0);
 600                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_1, 0, 0);
 601                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_0, 0, 0);
 602                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_1, 0, 0);
 603                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_0, 0, 0);
 604                 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_1, 0, 0);
 605         }
 606 }
 607
 608 void ipu_dp_dc_enable(ipu_channel_t channel)
 609 {
 610         int di;
 611         uint32_t reg;
 612         uint32_t dc_chan;
 613
 614         if (channel == MEM_DC_SYNC)
 615                 dc_chan = 1;
 616         else if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC))
 617                 dc_chan = 5;
 618         else
 619                 return;
 620
 621         if (channel == MEM_FG_SYNC) {
 622                 /* Enable FG channel */
 623                 reg = __raw_readl(DP_COM_CONF());
 624                 __raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF());
 625
 626                 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
 627                 __raw_writel(reg, IPU_SRM_PRI2);
 628                 return;
 629         }
 630
 631         di = g_dc_di_assignment[dc_chan];
 632
 633         /* Make sure other DC sync channel is not assigned same DI */
 634         reg = __raw_readl(DC_WR_CH_CONF(6 - dc_chan));
 635         if ((di << 2) == (reg & DC_WR_CH_CONF_PROG_DI_ID)) {
 636                 reg &= ~DC_WR_CH_CONF_PROG_DI_ID;
 637                 reg |= di ? 0 : DC_WR_CH_CONF_PROG_DI_ID;
 638                 __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
 639         }
 640
 641         reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
 642         reg |= 4 << DC_WR_CH_CONF_PROG_TYPE_OFFSET;
 643         __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
 644
 645         clk_enable(g_pixel_clk[di]);
 646 }
 647
 648 static unsigned char dc_swap;
 649
 650 void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
 651 {
 652         uint32_t reg;
 653         uint32_t csc;
 654         uint32_t dc_chan = 0;
 655         int timeout = 50;
 656         int irq = 0;
 657
 658         dc_swap = swap;
 659
 660         if (channel == MEM_DC_SYNC) {
 661                 dc_chan = 1;
 662                 irq = IPU_IRQ_DC_FC_1;
 663         } else if (channel == MEM_BG_SYNC) {
 664                 dc_chan = 5;
 665                 irq = IPU_IRQ_DP_SF_END;
 666         } else if (channel == MEM_FG_SYNC) {
 667                 /* Disable FG channel */
 668                 dc_chan = 5;
 669
 670                 reg = __raw_readl(DP_COM_CONF());
 671                 csc = reg & DP_COM_CONF_CSC_DEF_MASK;
 672                 if (csc == DP_COM_CONF_CSC_DEF_FG)
 673                         reg &= ~DP_COM_CONF_CSC_DEF_MASK;
 674
 675                 reg &= ~DP_COM_CONF_FG_EN;
 676                 __raw_writel(reg, DP_COM_CONF());
 677
 678                 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
 679                 __raw_writel(reg, IPU_SRM_PRI2);
 680
 681                 timeout = 50;
 682
 683                 /*
 684                  * Wait for DC triple buffer to empty,
 685                  * this check is useful for tv overlay.
 686                  */
 687                 if (g_dc_di_assignment[dc_chan] == 0)
 688                         while ((__raw_readl(DC_STAT) & 0x00000002)
 689                                != 0x00000002) {
 690                                 udelay(2000);
 691                                 timeout -= 2;
 692                                 if (timeout <= 0)
 693                                         break;
 694                         }
 695                 else if (g_dc_di_assignment[dc_chan] == 1)
 696                         while ((__raw_readl(DC_STAT) & 0x00000020)
 697                                != 0x00000020) {
 698                                 udelay(2000);
 699                                 timeout -= 2;
 700                                 if (timeout <= 0)
 701                                         break;
 702                         }
 703                 return;
 704         } else {
 705                 return;
 706         }
 707
 708         if (dc_swap) {
 709                 /* Swap DC channel 1 and 5 settings, and disable old dc chan */
 710                 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
 711                 __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
 712                 reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
 713                 reg ^= DC_WR_CH_CONF_PROG_DI_ID;
 714                 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
 715         } else {
 716                 /* Make sure that we leave at the irq starting edge */
 717                 __raw_writel(IPUIRQ_2_MASK(irq), IPUIRQ_2_STATREG(irq));
 718                 do {
 719                         reg = __raw_readl(IPUIRQ_2_STATREG(irq));
 720                 } while (!(reg & IPUIRQ_2_MASK(irq)));
 721
 722                 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
 723                 reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
 724                 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
 725
 726                 reg = __raw_readl(IPU_DISP_GEN);
 727                 if (g_dc_di_assignment[dc_chan])
 728                         reg &= ~DI1_COUNTER_RELEASE;
 729                 else
 730                         reg &= ~DI0_COUNTER_RELEASE;
 731                 __raw_writel(reg, IPU_DISP_GEN);
 732
 733                 /* Clock is already off because it must be done quickly, but
 734                    we need to fix the ref count */
 735                 clk_disable(g_pixel_clk[g_dc_di_assignment[dc_chan]]);
 736         }
 737 }
 738
 739 void ipu_init_dc_mappings(void)
 740 {
 741         /* IPU_PIX_FMT_RGB24 */
 742         ipu_dc_map_clear(0);
 743         ipu_dc_map_config(0, 0, 7, 0xFF);
 744         ipu_dc_map_config(0, 1, 15, 0xFF);
 745         ipu_dc_map_config(0, 2, 23, 0xFF);
 746
 747         /* IPU_PIX_FMT_RGB666 */
 748         ipu_dc_map_clear(1);
 749         ipu_dc_map_config(1, 0, 5, 0xFC);
 750         ipu_dc_map_config(1, 1, 11, 0xFC);
 751         ipu_dc_map_config(1, 2, 17, 0xFC);
 752
 753         /* IPU_PIX_FMT_YUV444 */
 754         ipu_dc_map_clear(2);
 755         ipu_dc_map_config(2, 0, 15, 0xFF);
 756         ipu_dc_map_config(2, 1, 23, 0xFF);
 757         ipu_dc_map_config(2, 2, 7, 0xFF);
 758
 759         /* IPU_PIX_FMT_RGB565 */
 760         ipu_dc_map_clear(3);
 761         ipu_dc_map_config(3, 0, 4, 0xF8);
 762         ipu_dc_map_config(3, 1, 10, 0xFC);
 763         ipu_dc_map_config(3, 2, 15, 0xF8);
 764
 765         /* IPU_PIX_FMT_LVDS666 */
 766         ipu_dc_map_clear(4);
 767         ipu_dc_map_config(4, 0, 5, 0xFC);
 768         ipu_dc_map_config(4, 1, 13, 0xFC);
 769         ipu_dc_map_config(4, 2, 21, 0xFC);
 770 }
 771
 772 static int ipu_pixfmt_to_map(uint32_t fmt)
 773 {
 774         switch (fmt) {
 775         case IPU_PIX_FMT_GENERIC:
 776         case IPU_PIX_FMT_RGB24:
 777                 return 0;
 778         case IPU_PIX_FMT_RGB666:
 779                 return 1;
 780         case IPU_PIX_FMT_YUV444:
 781                 return 2;
 782         case IPU_PIX_FMT_RGB565:
 783                 return 3;
 784         case IPU_PIX_FMT_LVDS666:
 785                 return 4;
 786         }
 787
 788         return -1;
 789 }
 790
 791 /*
 792  * This function is called to initialize a synchronous LCD panel.
 793  *
 794  * @param       disp            The DI the panel is attached to.
 795  *
 796  * @param       pixel_clk       Desired pixel clock frequency in Hz.
 797  *
 798  * @param       pixel_fmt       Input parameter for pixel format of buffer.
 799  *                              Pixel format is a FOURCC ASCII code.
 800  *
 801  * @param       width           The width of panel in pixels.
 802  *
 803  * @param       height          The height of panel in pixels.
 804  *
 805  * @param       hStartWidth     The number of pixel clocks between the HSYNC
 806  *                              signal pulse and the start of valid data.
 807  *
 808  * @param       hSyncWidth      The width of the HSYNC signal in units of pixel
 809  *                              clocks.
 810  *
 811  * @param       hEndWidth       The number of pixel clocks between the end of
 812  *                              valid data and the HSYNC signal for next line.
 813  *
 814  * @param       vStartWidth     The number of lines between the VSYNC
 815  *                              signal pulse and the start of valid data.
 816  *
 817  * @param       vSyncWidth      The width of the VSYNC signal in units of lines
 818  *
 819  * @param       vEndWidth       The number of lines between the end of valid
 820  *                              data and the VSYNC signal for next frame.
 821  *
 822  * @param       sig             Bitfield of signal polarities for LCD interface.
 823  *
 824  * @return      This function returns 0 on success or negative error code on
 825  *              fail.
 826  */
 827
 828 int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk,
 829                             uint16_t width, uint16_t height,
 830                             uint32_t pixel_fmt,
 831                             uint16_t h_start_width, uint16_t h_sync_width,
 832                             uint16_t h_end_width, uint16_t v_start_width,
 833                             uint16_t v_sync_width, uint16_t v_end_width,
 834                             uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig)
 835 {
 836         uint32_t reg;
 837         uint32_t di_gen, vsync_cnt;
 838         uint32_t div, rounded_pixel_clk;
 839         uint32_t h_total, v_total;
 840         int map;
 841         struct clk *di_parent;
 842
 843         debug("panel size = %d x %d\n", width, height);
 844
 845         if ((v_sync_width == 0) || (h_sync_width == 0))
 846                 return -EINVAL;
 847
 848         /* adapt panel to ipu restricitions */
 849         if (v_end_width < 2) {
 850                 v_end_width = 2;
 851                 puts("WARNING: v_end_width (lower_margin) must be >= 2, adjusted\n");
 852         }
 853
 854         h_total = width + h_sync_width + h_start_width + h_end_width;
 855         v_total = height + v_sync_width + v_start_width + v_end_width;
 856
 857         /* Init clocking */
 858         debug("pixel clk = %dHz\n", pixel_clk);
 859
 860         if (sig.ext_clk) {
 861                 if (!(g_di1_tvout && (disp == 1))) { /*not round div for tvout*/
 862                         /*
 863                          * Set the  PLL to be an even multiple
 864                          * of the pixel clock.
 865                          */
 866                         if ((clk_get_usecount(g_pixel_clk[0]) == 0) &&
 867                                 (clk_get_usecount(g_pixel_clk[1]) == 0)) {
 868                                 di_parent = clk_get_parent(g_di_clk[disp]);
 869                                 rounded_pixel_clk =
 870                                         clk_round_rate(g_pixel_clk[disp],
 871                                                 pixel_clk);
 872                                 div  = clk_get_rate(di_parent) /
 873                                         rounded_pixel_clk;
 874                                 if (div % 2)
 875                                         div++;
 876                                 if (clk_get_rate(di_parent) != div *
 877                                         rounded_pixel_clk)
 878                                         clk_set_rate(di_parent,
 879                                                 div * rounded_pixel_clk);
 880                                 udelay(10000);
 881                                 clk_set_rate(g_di_clk[disp],
 882                                         2 * rounded_pixel_clk);
 883                                 udelay(10000);
 884                         }
 885                 }
 886                 clk_set_parent(g_pixel_clk[disp], g_ldb_clk);
 887         } else {
 888                 if (clk_get_usecount(g_pixel_clk[disp]) != 0)
 889                         clk_set_parent(g_pixel_clk[disp], g_ipu_clk);
 890         }
 891         rounded_pixel_clk = clk_round_rate(g_pixel_clk[disp], pixel_clk);
 892         clk_set_rate(g_pixel_clk[disp], rounded_pixel_clk);
 893         udelay(5000);
 894         /* Get integer portion of divider */
 895         div = clk_get_rate(clk_get_parent(g_pixel_clk[disp])) /
 896                 rounded_pixel_clk;
 897
 898         ipu_di_data_wave_config(disp, SYNC_WAVE, div - 1, div - 1);
 899         ipu_di_data_pin_config(disp, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
 900
 901         map = ipu_pixfmt_to_map(pixel_fmt);
 902         if (map < 0) {
 903                 debug("IPU_DISP: No MAP\n");
 904                 return -EINVAL;
 905         }
 906
 907         di_gen = __raw_readl(DI_GENERAL(disp));
 908
 909         if (sig.interlaced) {
 910                 /* Setup internal HSYNC waveform */
 911                 ipu_di_sync_config(
 912                                 disp,           /* display */
 913                                 1,              /* counter */
 914                                 h_total / 2 - 1,/* run count */
 915                                 DI_SYNC_CLK,    /* run_resolution */
 916                                 0,              /* offset */
 917                                 DI_SYNC_NONE,   /* offset resolution */
 918                                 0,              /* repeat count */
 919                                 DI_SYNC_NONE,   /* CNT_CLR_SEL */
 920                                 0,              /* CNT_POLARITY_GEN_EN */
 921                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
 922                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
 923                                 0,              /* COUNT UP */
 924                                 0               /* COUNT DOWN */
 925                                 );
 926
 927                 /* Field 1 VSYNC waveform */
 928                 ipu_di_sync_config(
 929                                 disp,           /* display */
 930                                 2,              /* counter */
 931                                 h_total - 1,    /* run count */
 932                                 DI_SYNC_CLK,    /* run_resolution */
 933                                 0,              /* offset */
 934                                 DI_SYNC_NONE,   /* offset resolution */
 935                                 0,              /* repeat count */
 936                                 DI_SYNC_NONE,   /* CNT_CLR_SEL */
 937                                 0,              /* CNT_POLARITY_GEN_EN */
 938                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
 939                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
 940                                 0,              /* COUNT UP */
 941                                 4               /* COUNT DOWN */
 942                                 );
 943
 944                 /* Setup internal HSYNC waveform */
 945                 ipu_di_sync_config(
 946                                 disp,           /* display */
 947                                 3,              /* counter */
 948                                 v_total * 2 - 1,/* run count */
 949                                 DI_SYNC_INT_HSYNC,      /* run_resolution */
 950                                 1,              /* offset */
 951                                 DI_SYNC_INT_HSYNC,      /* offset resolution */
 952                                 0,              /* repeat count */
 953                                 DI_SYNC_NONE,   /* CNT_CLR_SEL */
 954                                 0,              /* CNT_POLARITY_GEN_EN */
 955                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
 956                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
 957                                 0,              /* COUNT UP */
 958                                 4               /* COUNT DOWN */
 959                                 );
 960
 961                 /* Active Field ? */
 962                 ipu_di_sync_config(
 963                                 disp,           /* display */
 964                                 4,              /* counter */
 965                                 v_total / 2 - 1,/* run count */
 966                                 DI_SYNC_HSYNC,  /* run_resolution */
 967                                 v_start_width,  /*  offset */
 968                                 DI_SYNC_HSYNC,  /* offset resolution */
 969                                 2,              /* repeat count */
 970                                 DI_SYNC_VSYNC,  /* CNT_CLR_SEL */
 971                                 0,              /* CNT_POLARITY_GEN_EN */
 972                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
 973                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
 974                                 0,              /* COUNT UP */
 975                                 0               /* COUNT DOWN */
 976                                 );
 977
 978                 /* Active Line */
 979                 ipu_di_sync_config(
 980                                 disp,           /* display */
 981                                 5,              /* counter */
 982                                 0,              /* run count */
 983                                 DI_SYNC_HSYNC,  /* run_resolution */
 984                                 0,              /*  offset */
 985                                 DI_SYNC_NONE,   /* offset resolution */
 986                                 height / 2,     /* repeat count */
 987                                 4,              /* CNT_CLR_SEL */
 988                                 0,              /* CNT_POLARITY_GEN_EN */
 989                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
 990                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
 991                                 0,              /* COUNT UP */
 992                                 0               /* COUNT DOWN */
 993                                 );
 994
 995                 /* Field 0 VSYNC waveform */
 996                 ipu_di_sync_config(
 997                                 disp,           /* display */
 998                                 6,              /* counter */
 999                                 v_total - 1,    /* run count */
1000                                 DI_SYNC_HSYNC,  /* run_resolution */
1001                                 0,              /* offset */
1002                                 DI_SYNC_NONE,   /* offset resolution */
1003                                 0,              /* repeat count */
1004                                 DI_SYNC_NONE,   /* CNT_CLR_SEL  */
1005                                 0,              /* CNT_POLARITY_GEN_EN */
1006                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
1007                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
1008                                 0,              /* COUNT UP */
1009                                 0               /* COUNT DOWN */
1010                                 );
1011
1012                 /* DC VSYNC waveform */
1013                 vsync_cnt = 7;
1014                 ipu_di_sync_config(
1015                                 disp,           /* display */
1016                                 7,              /* counter */
1017                                 v_total / 2 - 1,/* run count */
1018                                 DI_SYNC_HSYNC,  /* run_resolution  */
1019                                 9,              /* offset  */
1020                                 DI_SYNC_HSYNC,  /* offset resolution */
1021                                 2,              /* repeat count */
1022                                 DI_SYNC_VSYNC,  /* CNT_CLR_SEL */
1023                                 0,              /* CNT_POLARITY_GEN_EN */
1024                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
1025                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
1026                                 0,              /* COUNT UP */
1027                                 0               /* COUNT DOWN */
1028                                 );
1029
1030                 /* active pixel waveform */
1031                 ipu_di_sync_config(
1032                                 disp,           /* display */
1033                                 8,              /* counter */
1034                                 0,              /* run count  */
1035                                 DI_SYNC_CLK,    /* run_resolution */
1036                                 h_start_width,  /* offset  */
1037                                 DI_SYNC_CLK,    /* offset resolution */
1038                                 width,          /* repeat count  */
1039                                 5,              /* CNT_CLR_SEL  */
1040                                 0,              /* CNT_POLARITY_GEN_EN  */
1041                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL */
1042                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL  */
1043                                 0,              /* COUNT UP  */
1044                                 0               /* COUNT DOWN */
1045                                 );
1046
1047                 ipu_di_sync_config(
1048                                 disp,           /* display */
1049                                 9,              /* counter */
1050                                 v_total - 1,    /* run count */
1051                                 DI_SYNC_INT_HSYNC,/* run_resolution */
1052                                 v_total / 2,    /* offset  */
1053                                 DI_SYNC_INT_HSYNC,/* offset resolution  */
1054                                 0,              /* repeat count */
1055                                 DI_SYNC_HSYNC,  /* CNT_CLR_SEL */
1056                                 0,              /* CNT_POLARITY_GEN_EN  */
1057                                 DI_SYNC_NONE,   /* CNT_POLARITY_CLR_SEL  */
1058                                 DI_SYNC_NONE,   /* CNT_POLARITY_TRIGGER_SEL */
1059                                 0,              /* COUNT UP */
1060                                 4               /* COUNT DOWN */
1061                                 );
1062
1063                 /* set gentime select and tag sel */
1064                 reg = __raw_readl(DI_SW_GEN1(disp, 9));
1065                 reg &= 0x1FFFFFFF;
1066                 reg |= (3 - 1)<<29 | 0x00008000;
1067                 __raw_writel(reg, DI_SW_GEN1(disp, 9));
1068
1069                 __raw_writel(v_total / 2 - 1, DI_SCR_CONF(disp));
1070
1071                 /* set y_sel = 1 */
1072                 di_gen |= 0x10000000;
1073                 di_gen |= DI_GEN_POLARITY_5;
1074                 di_gen |= DI_GEN_POLARITY_8;
1075         } else {
1076                 /* Setup internal HSYNC waveform */
1077                 ipu_di_sync_config(disp, 1, h_total - 1, DI_SYNC_CLK,
1078                                 0, DI_SYNC_NONE, 0, DI_SYNC_NONE,
1079                                 0, DI_SYNC_NONE,
1080                                 DI_SYNC_NONE, 0, 0);
1081
1082                 /* Setup external (delayed) HSYNC waveform */
1083                 ipu_di_sync_config(disp, DI_SYNC_HSYNC, h_total - 1,
1084                                 DI_SYNC_CLK, div * v_to_h_sync, DI_SYNC_CLK,
1085                                 0, DI_SYNC_NONE, 1, DI_SYNC_NONE,
1086                                 DI_SYNC_CLK, 0, h_sync_width * 2);
1087                 /* Setup VSYNC waveform */
1088                 vsync_cnt = DI_SYNC_VSYNC;
1089                 ipu_di_sync_config(disp, DI_SYNC_VSYNC, v_total - 1,
1090                                 DI_SYNC_INT_HSYNC, 0, DI_SYNC_NONE, 0,
1091                                 DI_SYNC_NONE, 1, DI_SYNC_NONE,
1092                                 DI_SYNC_INT_HSYNC, 0, v_sync_width * 2);
1093                 __raw_writel(v_total - 1, DI_SCR_CONF(disp));
1094
1095                 /* Setup active data waveform to sync with DC */
1096                 ipu_di_sync_config(disp, 4, 0, DI_SYNC_HSYNC,
1097                                 v_sync_width + v_start_width, DI_SYNC_HSYNC,
1098                                 height,
1099                                 DI_SYNC_VSYNC, 0, DI_SYNC_NONE,
1100                                 DI_SYNC_NONE, 0, 0);
1101                 ipu_di_sync_config(disp, 5, 0, DI_SYNC_CLK,
1102                                 h_sync_width + h_start_width, DI_SYNC_CLK,
1103                                 width, 4, 0, DI_SYNC_NONE, DI_SYNC_NONE, 0,
1104                                 0);
1105
1106                 /* reset all unused counters */
1107                 __raw_writel(0, DI_SW_GEN0(disp, 6));
1108                 __raw_writel(0, DI_SW_GEN1(disp, 6));
1109                 __raw_writel(0, DI_SW_GEN0(disp, 7));
1110                 __raw_writel(0, DI_SW_GEN1(disp, 7));
1111                 __raw_writel(0, DI_SW_GEN0(disp, 8));
1112                 __raw_writel(0, DI_SW_GEN1(disp, 8));
1113                 __raw_writel(0, DI_SW_GEN0(disp, 9));
1114                 __raw_writel(0, DI_SW_GEN1(disp, 9));
1115
1116                 reg = __raw_readl(DI_STP_REP(disp, 6));
1117                 reg &= 0x0000FFFF;
1118                 __raw_writel(reg, DI_STP_REP(disp, 6));
1119                 __raw_writel(0, DI_STP_REP(disp, 7));
1120                 __raw_writel(0, DI_STP_REP9(disp));
1121
1122                 /* Init template microcode */
1123                 if (disp) {
1124                    ipu_dc_write_tmpl(2, WROD(0), 0, map, SYNC_WAVE, 8, 5);
1125                    ipu_dc_write_tmpl(3, WROD(0), 0, map, SYNC_WAVE, 4, 5);
1126                    ipu_dc_write_tmpl(4, WROD(0), 0, map, SYNC_WAVE, 0, 5);
1127                 } else {
1128                    ipu_dc_write_tmpl(5, WROD(0), 0, map, SYNC_WAVE, 8, 5);
1129                    ipu_dc_write_tmpl(6, WROD(0), 0, map, SYNC_WAVE, 4, 5);
1130                    ipu_dc_write_tmpl(7, WROD(0), 0, map, SYNC_WAVE, 0, 5);
1131                 }
1132
1133                 if (sig.Hsync_pol)
1134                         di_gen |= DI_GEN_POLARITY_2;
1135                 if (sig.Vsync_pol)
1136                         di_gen |= DI_GEN_POLARITY_3;
1137
1138                 if (!sig.clk_pol)
1139                         di_gen |= DI_GEN_POL_CLK;
1140
1141         }
1142
1143         __raw_writel(di_gen, DI_GENERAL(disp));
1144
1145         __raw_writel((--vsync_cnt << DI_VSYNC_SEL_OFFSET) |
1146                         0x00000002, DI_SYNC_AS_GEN(disp));
1147
1148         reg = __raw_readl(DI_POL(disp));
1149         reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
1150         if (sig.enable_pol)
1151                 reg |= DI_POL_DRDY_POLARITY_15;
1152         if (sig.data_pol)
1153                 reg |= DI_POL_DRDY_DATA_POLARITY;
1154         __raw_writel(reg, DI_POL(disp));
1155
1156         __raw_writel(width, DC_DISP_CONF2(DC_DISP_ID_SYNC(disp)));
1157
1158         return 0;
1159 }
1160
1161 /*
1162  * This function sets the foreground and background plane global alpha blending
1163  * modes. This function also sets the DP graphic plane according to the
1164  * parameter of IPUv3 DP channel.
1165  *
1166  * @param       channel         IPUv3 DP channel
1167  *
1168  * @param       enable          Boolean to enable or disable global alpha
1169  *                              blending. If disabled, local blending is used.
1170  *
1171  * @param       alpha           Global alpha value.
1172  *
1173  * @return      Returns 0 on success or negative error code on fail
1174  */
1175 int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
1176                                   uint8_t alpha)
1177 {
1178         uint32_t reg;
1179
1180         unsigned char bg_chan;
1181
1182         if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
1183                 (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
1184                 (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
1185                 return -EINVAL;
1186
1187         if (channel == MEM_BG_SYNC || channel == MEM_BG_ASYNC0 ||
1188             channel == MEM_BG_ASYNC1)
1189                 bg_chan = 1;
1190         else
1191                 bg_chan = 0;
1192
1193         if (!g_ipu_clk_enabled)
1194                 clk_enable(g_ipu_clk);
1195
1196         if (bg_chan) {
1197                 reg = __raw_readl(DP_COM_CONF());
1198                 __raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF());
1199         } else {
1200                 reg = __raw_readl(DP_COM_CONF());
1201                 __raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF());
1202         }
1203
1204         if (enable) {
1205                 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0x00FFFFFFL;
1206                 __raw_writel(reg | ((uint32_t) alpha << 24),
1207                              DP_GRAPH_WIND_CTRL());
1208
1209                 reg = __raw_readl(DP_COM_CONF());
1210                 __raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF());
1211         } else {
1212                 reg = __raw_readl(DP_COM_CONF());
1213                 __raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF());
1214         }
1215
1216         reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
1217         __raw_writel(reg, IPU_SRM_PRI2);
1218
1219         if (!g_ipu_clk_enabled)
1220                 clk_disable(g_ipu_clk);
1221
1222         return 0;
1223 }
1224
1225 /*
1226  * This function sets the transparent color key for SDC graphic plane.
1227  *
1228  * @param       channel         Input parameter for the logical channel ID.
1229  *
1230  * @param       enable          Boolean to enable or disable color key
1231  *
1232  * @param       colorKey        24-bit RGB color for transparent color key.
1233  *
1234  * @return      Returns 0 on success or negative error code on fail
1235  */
1236 int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
1237                                uint32_t color_key)
1238 {
1239         uint32_t reg;
1240         int y, u, v;
1241         int red, green, blue;
1242
1243         if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
1244                 (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
1245                 (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
1246                 return -EINVAL;
1247
1248         if (!g_ipu_clk_enabled)
1249                 clk_enable(g_ipu_clk);
1250
1251         color_key_4rgb = 1;
1252         /* Transform color key from rgb to yuv if CSC is enabled */
1253         if (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
1254                 ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
1255                 ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
1256                 ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB))) {
1257
1258                 debug("color key 0x%x need change to yuv fmt\n", color_key);
1259
1260                 red = (color_key >> 16) & 0xFF;
1261                 green = (color_key >> 8) & 0xFF;
1262                 blue = color_key & 0xFF;
1263
1264                 y = rgb_to_yuv(0, red, green, blue);
1265                 u = rgb_to_yuv(1, red, green, blue);
1266                 v = rgb_to_yuv(2, red, green, blue);
1267                 color_key = (y << 16) | (u << 8) | v;
1268
1269                 color_key_4rgb = 0;
1270
1271                 debug("color key change to yuv fmt 0x%x\n", color_key);
1272         }
1273
1274         if (enable) {
1275                 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
1276                 __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
1277
1278                 reg = __raw_readl(DP_COM_CONF());
1279                 __raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF());
1280         } else {
1281                 reg = __raw_readl(DP_COM_CONF());
1282                 __raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF());
1283         }
1284
1285         reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
1286         __raw_writel(reg, IPU_SRM_PRI2);
1287
1288         if (!g_ipu_clk_enabled)
1289                 clk_disable(g_ipu_clk);
1290
1291         return 0;
1292 }