uboot/drivers/video/ipu_disp.c
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   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
  25enum csc_type_t {
  26        RGB2YUV = 0,
  27        YUV2RGB,
  28        RGB2RGB,
  29        YUV2YUV,
  30        CSC_NONE,
  31        CSC_NUM
  32};
  33
  34struct 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
  46int dmfc_type_setup;
  47static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23;
  48int g_di1_tvout;
  49
  50extern struct clk *g_ipu_clk;
  51extern struct clk *g_ldb_clk;
  52extern struct clk *g_di_clk[2];
  53extern struct clk *g_pixel_clk[2];
  54
  55extern unsigned char g_ipu_clk_enabled;
  56extern unsigned char g_dc_di_assignment[];
  57
  58void 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
 139void 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
 180static 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
 190static 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
 203static 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
 238static 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
 254static 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
 261static 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
 280static 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 */
 294static 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 */
 306static 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 */
 318static 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 */
 339static 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
 377static enum csc_type_t fg_csc_type = CSC_NONE, bg_csc_type = CSC_NONE;
 378static int color_key_4rgb = 1;
 379
 380static 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
 418int 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
 505void 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
 531void 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
 580void 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
 608void 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
 648static unsigned char dc_swap;
 649
 650void 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
 739void 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
 772static 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
 828int32_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 */
1175int32_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 */
1236int32_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}
1293