qemu/hw/display/exynos4210_fimd.c
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   1/*
   2 * Samsung exynos4210 Display Controller (FIMD)
   3 *
   4 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
   5 * All rights reserved.
   6 * Based on LCD controller for Samsung S5PC1xx-based board emulation
   7 * by Kirill Batuzov <batuzovk@ispras.ru>
   8 *
   9 * Contributed by Mitsyanko Igor <i.mitsyanko@samsung.com>
  10 *
  11 * This program is free software; you can redistribute it and/or modify it
  12 * under the terms of the GNU General Public License as published by the
  13 * Free Software Foundation; either version 2 of the License, or (at your
  14 * option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  19 * See the GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License along
  22 * with this program; if not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25#include "qemu/osdep.h"
  26#include "hw/sysbus.h"
  27#include "ui/console.h"
  28#include "ui/pixel_ops.h"
  29#include "qemu/bswap.h"
  30#include "qemu/module.h"
  31
  32/* Debug messages configuration */
  33#define EXYNOS4210_FIMD_DEBUG              0
  34#define EXYNOS4210_FIMD_MODE_TRACE         0
  35
  36#if EXYNOS4210_FIMD_DEBUG == 0
  37    #define DPRINT_L1(fmt, args...)       do { } while (0)
  38    #define DPRINT_L2(fmt, args...)       do { } while (0)
  39    #define DPRINT_ERROR(fmt, args...)    do { } while (0)
  40#elif EXYNOS4210_FIMD_DEBUG == 1
  41    #define DPRINT_L1(fmt, args...) \
  42        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
  43    #define DPRINT_L2(fmt, args...)       do { } while (0)
  44    #define DPRINT_ERROR(fmt, args...)  \
  45        do {fprintf(stderr, "QEMU FIMD ERROR: "fmt, ## args); } while (0)
  46#else
  47    #define DPRINT_L1(fmt, args...) \
  48        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
  49    #define DPRINT_L2(fmt, args...) \
  50        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
  51    #define DPRINT_ERROR(fmt, args...)  \
  52        do {fprintf(stderr, "QEMU FIMD ERROR: "fmt, ## args); } while (0)
  53#endif
  54
  55#if EXYNOS4210_FIMD_MODE_TRACE == 0
  56    #define DPRINT_TRACE(fmt, args...)        do { } while (0)
  57#else
  58    #define DPRINT_TRACE(fmt, args...)        \
  59        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
  60#endif
  61
  62#define NUM_OF_WINDOWS              5
  63#define FIMD_REGS_SIZE              0x4114
  64
  65/* Video main control registers */
  66#define FIMD_VIDCON0                0x0000
  67#define FIMD_VIDCON1                0x0004
  68#define FIMD_VIDCON2                0x0008
  69#define FIMD_VIDCON3                0x000C
  70#define FIMD_VIDCON0_ENVID_F        (1 << 0)
  71#define FIMD_VIDCON0_ENVID          (1 << 1)
  72#define FIMD_VIDCON0_ENVID_MASK     ((1 << 0) | (1 << 1))
  73#define FIMD_VIDCON1_ROMASK         0x07FFE000
  74
  75/* Video time control registers */
  76#define FIMD_VIDTCON_START          0x10
  77#define FIMD_VIDTCON_END            0x1C
  78#define FIMD_VIDTCON2_SIZE_MASK     0x07FF
  79#define FIMD_VIDTCON2_HOR_SHIFT     0
  80#define FIMD_VIDTCON2_VER_SHIFT     11
  81
  82/* Window control registers */
  83#define FIMD_WINCON_START           0x0020
  84#define FIMD_WINCON_END             0x0030
  85#define FIMD_WINCON_ROMASK          0x82200000
  86#define FIMD_WINCON_ENWIN           (1 << 0)
  87#define FIMD_WINCON_BLD_PIX         (1 << 6)
  88#define FIMD_WINCON_ALPHA_MUL       (1 << 7)
  89#define FIMD_WINCON_ALPHA_SEL       (1 << 1)
  90#define FIMD_WINCON_SWAP            0x078000
  91#define FIMD_WINCON_SWAP_SHIFT      15
  92#define FIMD_WINCON_SWAP_WORD       0x1
  93#define FIMD_WINCON_SWAP_HWORD      0x2
  94#define FIMD_WINCON_SWAP_BYTE       0x4
  95#define FIMD_WINCON_SWAP_BITS       0x8
  96#define FIMD_WINCON_BUFSTAT_L       (1 << 21)
  97#define FIMD_WINCON_BUFSTAT_H       (1 << 31)
  98#define FIMD_WINCON_BUFSTATUS       ((1 << 21) | (1 << 31))
  99#define FIMD_WINCON_BUF0_STAT       ((0 << 21) | (0 << 31))
 100#define FIMD_WINCON_BUF1_STAT       ((1 << 21) | (0 << 31))
 101#define FIMD_WINCON_BUF2_STAT       ((0 << 21) | (1U << 31))
 102#define FIMD_WINCON_BUFSELECT       ((1 << 20) | (1 << 30))
 103#define FIMD_WINCON_BUF0_SEL        ((0 << 20) | (0 << 30))
 104#define FIMD_WINCON_BUF1_SEL        ((1 << 20) | (0 << 30))
 105#define FIMD_WINCON_BUF2_SEL        ((0 << 20) | (1 << 30))
 106#define FIMD_WINCON_BUFMODE         (1 << 14)
 107#define IS_PALETTIZED_MODE(w)       (w->wincon & 0xC)
 108#define PAL_MODE_WITH_ALPHA(x)       ((x) == 7)
 109#define WIN_BPP_MODE(w)             ((w->wincon >> 2) & 0xF)
 110#define WIN_BPP_MODE_WITH_ALPHA(w)     \
 111    (WIN_BPP_MODE(w) == 0xD || WIN_BPP_MODE(w) == 0xE)
 112
 113/* Shadow control register */
 114#define FIMD_SHADOWCON              0x0034
 115#define FIMD_WINDOW_PROTECTED(s, w) ((s) & (1 << (10 + (w))))
 116/* Channel mapping control register */
 117#define FIMD_WINCHMAP               0x003C
 118
 119/* Window position control registers */
 120#define FIMD_VIDOSD_START           0x0040
 121#define FIMD_VIDOSD_END             0x0088
 122#define FIMD_VIDOSD_COORD_MASK      0x07FF
 123#define FIMD_VIDOSD_HOR_SHIFT       11
 124#define FIMD_VIDOSD_VER_SHIFT       0
 125#define FIMD_VIDOSD_ALPHA_AEN0      0xFFF000
 126#define FIMD_VIDOSD_AEN0_SHIFT      12
 127#define FIMD_VIDOSD_ALPHA_AEN1      0x000FFF
 128
 129/* Frame buffer address registers */
 130#define FIMD_VIDWADD0_START         0x00A0
 131#define FIMD_VIDWADD0_END           0x00C4
 132#define FIMD_VIDWADD0_END           0x00C4
 133#define FIMD_VIDWADD1_START         0x00D0
 134#define FIMD_VIDWADD1_END           0x00F4
 135#define FIMD_VIDWADD2_START         0x0100
 136#define FIMD_VIDWADD2_END           0x0110
 137#define FIMD_VIDWADD2_PAGEWIDTH     0x1FFF
 138#define FIMD_VIDWADD2_OFFSIZE       0x1FFF
 139#define FIMD_VIDWADD2_OFFSIZE_SHIFT 13
 140#define FIMD_VIDW0ADD0_B2           0x20A0
 141#define FIMD_VIDW4ADD0_B2           0x20C0
 142
 143/* Video interrupt control registers */
 144#define FIMD_VIDINTCON0             0x130
 145#define FIMD_VIDINTCON1             0x134
 146
 147/* Window color key registers */
 148#define FIMD_WKEYCON_START          0x140
 149#define FIMD_WKEYCON_END            0x15C
 150#define FIMD_WKEYCON0_COMPKEY       0x00FFFFFF
 151#define FIMD_WKEYCON0_CTL_SHIFT     24
 152#define FIMD_WKEYCON0_DIRCON        (1 << 24)
 153#define FIMD_WKEYCON0_KEYEN         (1 << 25)
 154#define FIMD_WKEYCON0_KEYBLEN       (1 << 26)
 155/* Window color key alpha control register */
 156#define FIMD_WKEYALPHA_START        0x160
 157#define FIMD_WKEYALPHA_END          0x16C
 158
 159/* Dithering control register */
 160#define FIMD_DITHMODE               0x170
 161
 162/* Window alpha control registers */
 163#define FIMD_VIDALPHA_ALPHA_LOWER   0x000F0F0F
 164#define FIMD_VIDALPHA_ALPHA_UPPER   0x00F0F0F0
 165#define FIMD_VIDWALPHA_START        0x21C
 166#define FIMD_VIDWALPHA_END          0x240
 167
 168/* Window color map registers */
 169#define FIMD_WINMAP_START           0x180
 170#define FIMD_WINMAP_END             0x190
 171#define FIMD_WINMAP_EN              (1 << 24)
 172#define FIMD_WINMAP_COLOR_MASK      0x00FFFFFF
 173
 174/* Window palette control registers */
 175#define FIMD_WPALCON_HIGH           0x019C
 176#define FIMD_WPALCON_LOW            0x01A0
 177#define FIMD_WPALCON_UPDATEEN       (1 << 9)
 178#define FIMD_WPAL_W0PAL_L           0x07
 179#define FIMD_WPAL_W0PAL_L_SHT        0
 180#define FIMD_WPAL_W1PAL_L           0x07
 181#define FIMD_WPAL_W1PAL_L_SHT       3
 182#define FIMD_WPAL_W2PAL_L           0x01
 183#define FIMD_WPAL_W2PAL_L_SHT       6
 184#define FIMD_WPAL_W2PAL_H           0x06
 185#define FIMD_WPAL_W2PAL_H_SHT       8
 186#define FIMD_WPAL_W3PAL_L           0x01
 187#define FIMD_WPAL_W3PAL_L_SHT       7
 188#define FIMD_WPAL_W3PAL_H           0x06
 189#define FIMD_WPAL_W3PAL_H_SHT       12
 190#define FIMD_WPAL_W4PAL_L           0x01
 191#define FIMD_WPAL_W4PAL_L_SHT       8
 192#define FIMD_WPAL_W4PAL_H           0x06
 193#define FIMD_WPAL_W4PAL_H_SHT       16
 194
 195/* Trigger control registers */
 196#define FIMD_TRIGCON                0x01A4
 197#define FIMD_TRIGCON_ROMASK         0x00000004
 198
 199/* LCD I80 Interface Control */
 200#define FIMD_I80IFCON_START         0x01B0
 201#define FIMD_I80IFCON_END           0x01BC
 202/* Color gain control register */
 203#define FIMD_COLORGAINCON           0x01C0
 204/* LCD i80 Interface Command Control */
 205#define FIMD_LDI_CMDCON0            0x01D0
 206#define FIMD_LDI_CMDCON1            0x01D4
 207/* I80 System Interface Manual Command Control */
 208#define FIMD_SIFCCON0               0x01E0
 209#define FIMD_SIFCCON2               0x01E8
 210
 211/* Hue Control Registers */
 212#define FIMD_HUECOEFCR_START        0x01EC
 213#define FIMD_HUECOEFCR_END          0x01F4
 214#define FIMD_HUECOEFCB_START        0x01FC
 215#define FIMD_HUECOEFCB_END          0x0208
 216#define FIMD_HUEOFFSET              0x020C
 217
 218/* Video interrupt control registers */
 219#define FIMD_VIDINT_INTFIFOPEND     (1 << 0)
 220#define FIMD_VIDINT_INTFRMPEND      (1 << 1)
 221#define FIMD_VIDINT_INTI80PEND      (1 << 2)
 222#define FIMD_VIDINT_INTEN           (1 << 0)
 223#define FIMD_VIDINT_INTFIFOEN       (1 << 1)
 224#define FIMD_VIDINT_INTFRMEN        (1 << 12)
 225#define FIMD_VIDINT_I80IFDONE       (1 << 17)
 226
 227/* Window blend equation control registers */
 228#define FIMD_BLENDEQ_START          0x0244
 229#define FIMD_BLENDEQ_END            0x0250
 230#define FIMD_BLENDCON               0x0260
 231#define FIMD_ALPHA_8BIT             (1 << 0)
 232#define FIMD_BLENDEQ_COEF_MASK      0xF
 233
 234/* Window RTQOS Control Registers */
 235#define FIMD_WRTQOSCON_START        0x0264
 236#define FIMD_WRTQOSCON_END          0x0274
 237
 238/* LCD I80 Interface Command */
 239#define FIMD_I80IFCMD_START         0x0280
 240#define FIMD_I80IFCMD_END           0x02AC
 241
 242/* Shadow windows control registers */
 243#define FIMD_SHD_ADD0_START         0x40A0
 244#define FIMD_SHD_ADD0_END           0x40C0
 245#define FIMD_SHD_ADD1_START         0x40D0
 246#define FIMD_SHD_ADD1_END           0x40F0
 247#define FIMD_SHD_ADD2_START         0x4100
 248#define FIMD_SHD_ADD2_END           0x4110
 249
 250/* Palette memory */
 251#define FIMD_PAL_MEM_START          0x2400
 252#define FIMD_PAL_MEM_END            0x37FC
 253/* Palette memory aliases for windows 0 and 1 */
 254#define FIMD_PALMEM_AL_START        0x0400
 255#define FIMD_PALMEM_AL_END          0x0BFC
 256
 257typedef struct {
 258    uint8_t r, g, b;
 259    /* D[31..24]dummy, D[23..16]rAlpha, D[15..8]gAlpha, D[7..0]bAlpha */
 260    uint32_t a;
 261} rgba;
 262#define RGBA_SIZE  7
 263
 264typedef void pixel_to_rgb_func(uint32_t pixel, rgba *p);
 265typedef struct Exynos4210fimdWindow Exynos4210fimdWindow;
 266
 267struct Exynos4210fimdWindow {
 268    uint32_t wincon;        /* Window control register */
 269    uint32_t buf_start[3];  /* Start address for video frame buffer */
 270    uint32_t buf_end[3];    /* End address for video frame buffer */
 271    uint32_t keycon[2];     /* Window color key registers */
 272    uint32_t keyalpha;      /* Color key alpha control register */
 273    uint32_t winmap;        /* Window color map register */
 274    uint32_t blendeq;       /* Window blending equation control register */
 275    uint32_t rtqoscon;      /* Window RTQOS Control Registers */
 276    uint32_t palette[256];  /* Palette RAM */
 277    uint32_t shadow_buf_start;      /* Start address of shadow frame buffer */
 278    uint32_t shadow_buf_end;        /* End address of shadow frame buffer */
 279    uint32_t shadow_buf_size;       /* Virtual shadow screen width */
 280
 281    pixel_to_rgb_func *pixel_to_rgb;
 282    void (*draw_line)(Exynos4210fimdWindow *w, uint8_t *src, uint8_t *dst,
 283            bool blend);
 284    uint32_t (*get_alpha)(Exynos4210fimdWindow *w, uint32_t pix_a);
 285    uint16_t lefttop_x, lefttop_y;   /* VIDOSD0 register */
 286    uint16_t rightbot_x, rightbot_y; /* VIDOSD1 register */
 287    uint32_t osdsize;                /* VIDOSD2&3 register */
 288    uint32_t alpha_val[2];           /* VIDOSD2&3, VIDWALPHA registers */
 289    uint16_t virtpage_width;         /* VIDWADD2 register */
 290    uint16_t virtpage_offsize;       /* VIDWADD2 register */
 291    MemoryRegionSection mem_section; /* RAM fragment containing framebuffer */
 292    uint8_t *host_fb_addr;           /* Host pointer to window's framebuffer */
 293    hwaddr fb_len;       /* Framebuffer length */
 294};
 295
 296#define TYPE_EXYNOS4210_FIMD "exynos4210.fimd"
 297#define EXYNOS4210_FIMD(obj) \
 298    OBJECT_CHECK(Exynos4210fimdState, (obj), TYPE_EXYNOS4210_FIMD)
 299
 300typedef struct {
 301    SysBusDevice parent_obj;
 302
 303    MemoryRegion iomem;
 304    QemuConsole *console;
 305    qemu_irq irq[3];
 306
 307    uint32_t vidcon[4];     /* Video main control registers 0-3 */
 308    uint32_t vidtcon[4];    /* Video time control registers 0-3 */
 309    uint32_t shadowcon;     /* Window shadow control register */
 310    uint32_t winchmap;      /* Channel mapping control register */
 311    uint32_t vidintcon[2];  /* Video interrupt control registers */
 312    uint32_t dithmode;      /* Dithering control register */
 313    uint32_t wpalcon[2];    /* Window palette control registers */
 314    uint32_t trigcon;       /* Trigger control register */
 315    uint32_t i80ifcon[4];   /* I80 interface control registers */
 316    uint32_t colorgaincon;  /* Color gain control register */
 317    uint32_t ldi_cmdcon[2]; /* LCD I80 interface command control */
 318    uint32_t sifccon[3];    /* I80 System Interface Manual Command Control */
 319    uint32_t huecoef_cr[4]; /* Hue control registers */
 320    uint32_t huecoef_cb[4]; /* Hue control registers */
 321    uint32_t hueoffset;     /* Hue offset control register */
 322    uint32_t blendcon;      /* Blending control register */
 323    uint32_t i80ifcmd[12];  /* LCD I80 Interface Command */
 324
 325    Exynos4210fimdWindow window[5];    /* Window-specific registers */
 326    uint8_t *ifb;           /* Internal frame buffer */
 327    bool invalidate;        /* Image needs to be redrawn */
 328    bool enabled;           /* Display controller is enabled */
 329} Exynos4210fimdState;
 330
 331/* Perform byte/halfword/word swap of data according to WINCON */
 332static inline void fimd_swap_data(unsigned int swap_ctl, uint64_t *data)
 333{
 334    int i;
 335    uint64_t res;
 336    uint64_t x = *data;
 337
 338    if (swap_ctl & FIMD_WINCON_SWAP_BITS) {
 339        res = 0;
 340        for (i = 0; i < 64; i++) {
 341            if (x & (1ULL << (63 - i))) {
 342                res |= (1ULL << i);
 343            }
 344        }
 345        x = res;
 346    }
 347
 348    if (swap_ctl & FIMD_WINCON_SWAP_BYTE) {
 349        x = bswap64(x);
 350    }
 351
 352    if (swap_ctl & FIMD_WINCON_SWAP_HWORD) {
 353        x = ((x & 0x000000000000FFFFULL) << 48) |
 354            ((x & 0x00000000FFFF0000ULL) << 16) |
 355            ((x & 0x0000FFFF00000000ULL) >> 16) |
 356            ((x & 0xFFFF000000000000ULL) >> 48);
 357    }
 358
 359    if (swap_ctl & FIMD_WINCON_SWAP_WORD) {
 360        x = ((x & 0x00000000FFFFFFFFULL) << 32) |
 361            ((x & 0xFFFFFFFF00000000ULL) >> 32);
 362    }
 363
 364    *data = x;
 365}
 366
 367/* Conversion routines of Pixel data from frame buffer area to internal RGBA
 368 * pixel representation.
 369 * Every color component internally represented as 8-bit value. If original
 370 * data has less than 8 bit for component, data is extended to 8 bit. For
 371 * example, if blue component has only two possible values 0 and 1 it will be
 372 * extended to 0 and 0xFF */
 373
 374/* One bit for alpha representation */
 375#define DEF_PIXEL_TO_RGB_A1(N, R, G, B) \
 376static void N(uint32_t pixel, rgba *p) \
 377{ \
 378    p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
 379           ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
 380    pixel >>= (B); \
 381    p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
 382           ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
 383    pixel >>= (G); \
 384    p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
 385           ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
 386    pixel >>= (R); \
 387    p->a = (pixel & 0x1); \
 388}
 389
 390DEF_PIXEL_TO_RGB_A1(pixel_a444_to_rgb, 4, 4, 4)
 391DEF_PIXEL_TO_RGB_A1(pixel_a555_to_rgb, 5, 5, 5)
 392DEF_PIXEL_TO_RGB_A1(pixel_a666_to_rgb, 6, 6, 6)
 393DEF_PIXEL_TO_RGB_A1(pixel_a665_to_rgb, 6, 6, 5)
 394DEF_PIXEL_TO_RGB_A1(pixel_a888_to_rgb, 8, 8, 8)
 395DEF_PIXEL_TO_RGB_A1(pixel_a887_to_rgb, 8, 8, 7)
 396
 397/* Alpha component is always zero */
 398#define DEF_PIXEL_TO_RGB_A0(N, R, G, B) \
 399static void N(uint32_t pixel, rgba *p) \
 400{ \
 401    p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
 402           ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
 403    pixel >>= (B); \
 404    p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
 405           ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
 406    pixel >>= (G); \
 407    p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
 408           ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
 409    p->a = 0x0; \
 410}
 411
 412DEF_PIXEL_TO_RGB_A0(pixel_565_to_rgb,  5, 6, 5)
 413DEF_PIXEL_TO_RGB_A0(pixel_555_to_rgb,  5, 5, 5)
 414DEF_PIXEL_TO_RGB_A0(pixel_666_to_rgb,  6, 6, 6)
 415DEF_PIXEL_TO_RGB_A0(pixel_888_to_rgb,  8, 8, 8)
 416
 417/* Alpha component has some meaningful value */
 418#define DEF_PIXEL_TO_RGB_A(N, R, G, B, A) \
 419static void N(uint32_t pixel, rgba *p) \
 420{ \
 421    p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
 422           ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
 423    pixel >>= (B); \
 424    p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
 425           ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
 426    pixel >>= (G); \
 427    p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
 428           ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
 429    pixel >>= (R); \
 430    p->a = (pixel & ((1 << (A)) - 1)) << (8 - (A)) | \
 431           ((pixel >> (2 * (A) - 8)) & ((1 << (8 - (A))) - 1)); \
 432    p->a = p->a | (p->a << 8) | (p->a << 16); \
 433}
 434
 435DEF_PIXEL_TO_RGB_A(pixel_4444_to_rgb, 4, 4, 4, 4)
 436DEF_PIXEL_TO_RGB_A(pixel_8888_to_rgb, 8, 8, 8, 8)
 437
 438/* Lookup table to extent 2-bit color component to 8 bit */
 439static const uint8_t pixel_lutable_2b[4] = {
 440     0x0, 0x55, 0xAA, 0xFF
 441};
 442/* Lookup table to extent 3-bit color component to 8 bit */
 443static const uint8_t pixel_lutable_3b[8] = {
 444     0x0, 0x24, 0x49, 0x6D, 0x92, 0xB6, 0xDB, 0xFF
 445};
 446/* Special case for a232 bpp mode */
 447static void pixel_a232_to_rgb(uint32_t pixel, rgba *p)
 448{
 449    p->b = pixel_lutable_2b[(pixel & 0x3)];
 450    pixel >>= 2;
 451    p->g = pixel_lutable_3b[(pixel & 0x7)];
 452    pixel >>= 3;
 453    p->r = pixel_lutable_2b[(pixel & 0x3)];
 454    pixel >>= 2;
 455    p->a = (pixel & 0x1);
 456}
 457
 458/* Special case for (5+1, 5+1, 5+1) mode. Data bit 15 is common LSB
 459 * for all three color components */
 460static void pixel_1555_to_rgb(uint32_t pixel, rgba *p)
 461{
 462    uint8_t comm = (pixel >> 15) & 1;
 463    p->b = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
 464    pixel >>= 5;
 465    p->g = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
 466    pixel >>= 5;
 467    p->r = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
 468    p->a = 0x0;
 469}
 470
 471/* Put/get pixel to/from internal LCD Controller framebuffer */
 472
 473static int put_pixel_ifb(const rgba p, uint8_t *d)
 474{
 475    *(uint8_t *)d++ = p.r;
 476    *(uint8_t *)d++ = p.g;
 477    *(uint8_t *)d++ = p.b;
 478    *(uint32_t *)d = p.a;
 479    return RGBA_SIZE;
 480}
 481
 482static int get_pixel_ifb(const uint8_t *s, rgba *p)
 483{
 484    p->r = *(uint8_t *)s++;
 485    p->g = *(uint8_t *)s++;
 486    p->b = *(uint8_t *)s++;
 487    p->a = (*(uint32_t *)s) & 0x00FFFFFF;
 488    return RGBA_SIZE;
 489}
 490
 491static pixel_to_rgb_func *palette_data_format[8] = {
 492    [0] = pixel_565_to_rgb,
 493    [1] = pixel_a555_to_rgb,
 494    [2] = pixel_666_to_rgb,
 495    [3] = pixel_a665_to_rgb,
 496    [4] = pixel_a666_to_rgb,
 497    [5] = pixel_888_to_rgb,
 498    [6] = pixel_a888_to_rgb,
 499    [7] = pixel_8888_to_rgb
 500};
 501
 502/* Returns Index in palette data formats table for given window number WINDOW */
 503static uint32_t
 504exynos4210_fimd_palette_format(Exynos4210fimdState *s, int window)
 505{
 506    uint32_t ret;
 507
 508    switch (window) {
 509    case 0:
 510        ret = (s->wpalcon[1] >> FIMD_WPAL_W0PAL_L_SHT) & FIMD_WPAL_W0PAL_L;
 511        if (ret != 7) {
 512            ret = 6 - ret;
 513        }
 514        break;
 515    case 1:
 516        ret = (s->wpalcon[1] >> FIMD_WPAL_W1PAL_L_SHT) & FIMD_WPAL_W1PAL_L;
 517        if (ret != 7) {
 518            ret = 6 - ret;
 519        }
 520        break;
 521    case 2:
 522        ret = ((s->wpalcon[0] >> FIMD_WPAL_W2PAL_H_SHT) & FIMD_WPAL_W2PAL_H) |
 523            ((s->wpalcon[1] >> FIMD_WPAL_W2PAL_L_SHT) & FIMD_WPAL_W2PAL_L);
 524        break;
 525    case 3:
 526        ret = ((s->wpalcon[0] >> FIMD_WPAL_W3PAL_H_SHT) & FIMD_WPAL_W3PAL_H) |
 527            ((s->wpalcon[1] >> FIMD_WPAL_W3PAL_L_SHT) & FIMD_WPAL_W3PAL_L);
 528        break;
 529    case 4:
 530        ret = ((s->wpalcon[0] >> FIMD_WPAL_W4PAL_H_SHT) & FIMD_WPAL_W4PAL_H) |
 531            ((s->wpalcon[1] >> FIMD_WPAL_W4PAL_L_SHT) & FIMD_WPAL_W4PAL_L);
 532        break;
 533    default:
 534        hw_error("exynos4210.fimd: incorrect window number %d\n", window);
 535        ret = 0;
 536        break;
 537    }
 538    return ret;
 539}
 540
 541#define FIMD_1_MINUS_COLOR(x)    \
 542            ((0xFF - ((x) & 0xFF)) | (0xFF00 - ((x) & 0xFF00)) | \
 543                                  (0xFF0000 - ((x) & 0xFF0000)))
 544#define EXTEND_LOWER_HALFBYTE(x) (((x) & 0xF0F0F) | (((x) << 4) & 0xF0F0F0))
 545#define EXTEND_UPPER_HALFBYTE(x) (((x) & 0xF0F0F0) | (((x) >> 4) & 0xF0F0F))
 546
 547/* Multiply three lower bytes of two 32-bit words with each other.
 548 * Each byte with values 0-255 is considered as a number with possible values
 549 * in a range [0 - 1] */
 550static inline uint32_t fimd_mult_each_byte(uint32_t a, uint32_t b)
 551{
 552    uint32_t tmp;
 553    uint32_t ret;
 554
 555    ret = ((tmp = (((a & 0xFF) * (b & 0xFF)) / 0xFF)) > 0xFF) ? 0xFF : tmp;
 556    ret |= ((tmp = ((((a >> 8) & 0xFF) * ((b >> 8) & 0xFF)) / 0xFF)) > 0xFF) ?
 557            0xFF00 : tmp << 8;
 558    ret |= ((tmp = ((((a >> 16) & 0xFF) * ((b >> 16) & 0xFF)) / 0xFF)) > 0xFF) ?
 559            0xFF0000 : tmp << 16;
 560    return ret;
 561}
 562
 563/* For each corresponding bytes of two 32-bit words: (a*b + c*d)
 564 * Byte values 0-255 are mapped to a range [0 .. 1] */
 565static inline uint32_t
 566fimd_mult_and_sum_each_byte(uint32_t a, uint32_t b, uint32_t c, uint32_t d)
 567{
 568    uint32_t tmp;
 569    uint32_t ret;
 570
 571    ret = ((tmp = (((a & 0xFF) * (b & 0xFF) + (c & 0xFF) * (d & 0xFF)) / 0xFF))
 572            > 0xFF) ? 0xFF : tmp;
 573    ret |= ((tmp = ((((a >> 8) & 0xFF) * ((b >> 8) & 0xFF) + ((c >> 8) & 0xFF) *
 574            ((d >> 8) & 0xFF)) / 0xFF)) > 0xFF) ? 0xFF00 : tmp << 8;
 575    ret |= ((tmp = ((((a >> 16) & 0xFF) * ((b >> 16) & 0xFF) +
 576            ((c >> 16) & 0xFF) * ((d >> 16) & 0xFF)) / 0xFF)) > 0xFF) ?
 577                    0xFF0000 : tmp << 16;
 578    return ret;
 579}
 580
 581/* These routines cover all possible sources of window's transparent factor
 582 * used in blending equation. Choice of routine is affected by WPALCON
 583 * registers, BLENDCON register and window's WINCON register */
 584
 585static uint32_t fimd_get_alpha_pix(Exynos4210fimdWindow *w, uint32_t pix_a)
 586{
 587    return pix_a;
 588}
 589
 590static uint32_t
 591fimd_get_alpha_pix_extlow(Exynos4210fimdWindow *w, uint32_t pix_a)
 592{
 593    return EXTEND_LOWER_HALFBYTE(pix_a);
 594}
 595
 596static uint32_t
 597fimd_get_alpha_pix_exthigh(Exynos4210fimdWindow *w, uint32_t pix_a)
 598{
 599    return EXTEND_UPPER_HALFBYTE(pix_a);
 600}
 601
 602static uint32_t fimd_get_alpha_mult(Exynos4210fimdWindow *w, uint32_t pix_a)
 603{
 604    return fimd_mult_each_byte(pix_a, w->alpha_val[0]);
 605}
 606
 607static uint32_t fimd_get_alpha_mult_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
 608{
 609    return fimd_mult_each_byte(EXTEND_LOWER_HALFBYTE(pix_a),
 610            EXTEND_UPPER_HALFBYTE(w->alpha_val[0]));
 611}
 612
 613static uint32_t fimd_get_alpha_aen(Exynos4210fimdWindow *w, uint32_t pix_a)
 614{
 615    return w->alpha_val[pix_a];
 616}
 617
 618static uint32_t fimd_get_alpha_aen_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
 619{
 620    return EXTEND_UPPER_HALFBYTE(w->alpha_val[pix_a]);
 621}
 622
 623static uint32_t fimd_get_alpha_sel(Exynos4210fimdWindow *w, uint32_t pix_a)
 624{
 625    return w->alpha_val[(w->wincon & FIMD_WINCON_ALPHA_SEL) ? 1 : 0];
 626}
 627
 628static uint32_t fimd_get_alpha_sel_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
 629{
 630    return EXTEND_UPPER_HALFBYTE(w->alpha_val[(w->wincon &
 631            FIMD_WINCON_ALPHA_SEL) ? 1 : 0]);
 632}
 633
 634/* Updates currently active alpha value get function for specified window */
 635static void fimd_update_get_alpha(Exynos4210fimdState *s, int win)
 636{
 637    Exynos4210fimdWindow *w = &s->window[win];
 638    const bool alpha_is_8bit = s->blendcon & FIMD_ALPHA_8BIT;
 639
 640    if (w->wincon & FIMD_WINCON_BLD_PIX) {
 641        if ((w->wincon & FIMD_WINCON_ALPHA_SEL) && WIN_BPP_MODE_WITH_ALPHA(w)) {
 642            /* In this case, alpha component contains meaningful value */
 643            if (w->wincon & FIMD_WINCON_ALPHA_MUL) {
 644                w->get_alpha = alpha_is_8bit ?
 645                        fimd_get_alpha_mult : fimd_get_alpha_mult_ext;
 646            } else {
 647                w->get_alpha = alpha_is_8bit ?
 648                        fimd_get_alpha_pix : fimd_get_alpha_pix_extlow;
 649            }
 650        } else {
 651            if (IS_PALETTIZED_MODE(w) &&
 652                  PAL_MODE_WITH_ALPHA(exynos4210_fimd_palette_format(s, win))) {
 653                /* Alpha component has 8-bit numeric value */
 654                w->get_alpha = alpha_is_8bit ?
 655                        fimd_get_alpha_pix : fimd_get_alpha_pix_exthigh;
 656            } else {
 657                /* Alpha has only two possible values (AEN) */
 658                w->get_alpha = alpha_is_8bit ?
 659                        fimd_get_alpha_aen : fimd_get_alpha_aen_ext;
 660            }
 661        }
 662    } else {
 663        w->get_alpha = alpha_is_8bit ? fimd_get_alpha_sel :
 664                fimd_get_alpha_sel_ext;
 665    }
 666}
 667
 668/* Blends current window's (w) pixel (foreground pixel *ret) with background
 669 * window (w_blend) pixel p_bg according to formula:
 670 * NEW_COLOR = a_coef x FG_PIXEL_COLOR + b_coef x BG_PIXEL_COLOR
 671 * NEW_ALPHA = p_coef x FG_ALPHA + q_coef x BG_ALPHA
 672 */
 673static void
 674exynos4210_fimd_blend_pixel(Exynos4210fimdWindow *w, rgba p_bg, rgba *ret)
 675{
 676    rgba p_fg = *ret;
 677    uint32_t bg_color = ((p_bg.r & 0xFF) << 16) | ((p_bg.g & 0xFF) << 8) |
 678            (p_bg.b & 0xFF);
 679    uint32_t fg_color = ((p_fg.r & 0xFF) << 16) | ((p_fg.g & 0xFF) << 8) |
 680            (p_fg.b & 0xFF);
 681    uint32_t alpha_fg = p_fg.a;
 682    int i;
 683    /* It is possible that blending equation parameters a and b do not
 684     * depend on window BLENEQ register. Account for this with first_coef */
 685    enum { A_COEF = 0, B_COEF = 1, P_COEF = 2, Q_COEF = 3, COEF_NUM = 4};
 686    uint32_t first_coef = A_COEF;
 687    uint32_t blend_param[COEF_NUM];
 688
 689    if (w->keycon[0] & FIMD_WKEYCON0_KEYEN) {
 690        uint32_t colorkey = (w->keycon[1] &
 691              ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) & FIMD_WKEYCON0_COMPKEY;
 692
 693        if ((w->keycon[0] & FIMD_WKEYCON0_DIRCON) &&
 694            (bg_color & ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) == colorkey) {
 695            /* Foreground pixel is displayed */
 696            if (w->keycon[0] & FIMD_WKEYCON0_KEYBLEN) {
 697                alpha_fg = w->keyalpha;
 698                blend_param[A_COEF] = alpha_fg;
 699                blend_param[B_COEF] = FIMD_1_MINUS_COLOR(alpha_fg);
 700            } else {
 701                alpha_fg = 0;
 702                blend_param[A_COEF] = 0xFFFFFF;
 703                blend_param[B_COEF] = 0x0;
 704            }
 705            first_coef = P_COEF;
 706        } else if ((w->keycon[0] & FIMD_WKEYCON0_DIRCON) == 0 &&
 707            (fg_color & ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) == colorkey) {
 708            /* Background pixel is displayed */
 709            if (w->keycon[0] & FIMD_WKEYCON0_KEYBLEN) {
 710                alpha_fg = w->keyalpha;
 711                blend_param[A_COEF] = alpha_fg;
 712                blend_param[B_COEF] = FIMD_1_MINUS_COLOR(alpha_fg);
 713            } else {
 714                alpha_fg = 0;
 715                blend_param[A_COEF] = 0x0;
 716                blend_param[B_COEF] = 0xFFFFFF;
 717            }
 718            first_coef = P_COEF;
 719        }
 720    }
 721
 722    for (i = first_coef; i < COEF_NUM; i++) {
 723        switch ((w->blendeq >> i * 6) & FIMD_BLENDEQ_COEF_MASK) {
 724        case 0:
 725            blend_param[i] = 0;
 726            break;
 727        case 1:
 728            blend_param[i] = 0xFFFFFF;
 729            break;
 730        case 2:
 731            blend_param[i] = alpha_fg;
 732            break;
 733        case 3:
 734            blend_param[i] = FIMD_1_MINUS_COLOR(alpha_fg);
 735            break;
 736        case 4:
 737            blend_param[i] = p_bg.a;
 738            break;
 739        case 5:
 740            blend_param[i] = FIMD_1_MINUS_COLOR(p_bg.a);
 741            break;
 742        case 6:
 743            blend_param[i] = w->alpha_val[0];
 744            break;
 745        case 10:
 746            blend_param[i] = fg_color;
 747            break;
 748        case 11:
 749            blend_param[i] = FIMD_1_MINUS_COLOR(fg_color);
 750            break;
 751        case 12:
 752            blend_param[i] = bg_color;
 753            break;
 754        case 13:
 755            blend_param[i] = FIMD_1_MINUS_COLOR(bg_color);
 756            break;
 757        default:
 758            hw_error("exynos4210.fimd: blend equation coef illegal value\n");
 759            break;
 760        }
 761    }
 762
 763    fg_color = fimd_mult_and_sum_each_byte(bg_color, blend_param[B_COEF],
 764            fg_color, blend_param[A_COEF]);
 765    ret->b = fg_color & 0xFF;
 766    fg_color >>= 8;
 767    ret->g = fg_color & 0xFF;
 768    fg_color >>= 8;
 769    ret->r = fg_color & 0xFF;
 770    ret->a = fimd_mult_and_sum_each_byte(alpha_fg, blend_param[P_COEF],
 771            p_bg.a, blend_param[Q_COEF]);
 772}
 773
 774/* These routines read data from video frame buffer in system RAM, convert
 775 * this data to display controller internal representation, if necessary,
 776 * perform pixel blending with data, currently presented in internal buffer.
 777 * Result is stored in display controller internal frame buffer. */
 778
 779/* Draw line with index in palette table in RAM frame buffer data */
 780#define DEF_DRAW_LINE_PALETTE(N) \
 781static void glue(draw_line_palette_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
 782               uint8_t *dst, bool blend) \
 783{ \
 784    int width = w->rightbot_x - w->lefttop_x + 1; \
 785    uint8_t *ifb = dst; \
 786    uint8_t swap = (w->wincon & FIMD_WINCON_SWAP) >> FIMD_WINCON_SWAP_SHIFT; \
 787    uint64_t data; \
 788    rgba p, p_old; \
 789    int i; \
 790    do { \
 791        memcpy(&data, src, sizeof(data)); \
 792        src += 8; \
 793        fimd_swap_data(swap, &data); \
 794        for (i = (64 / (N) - 1); i >= 0; i--) { \
 795            w->pixel_to_rgb(w->palette[(data >> ((N) * i)) & \
 796                                   ((1ULL << (N)) - 1)], &p); \
 797            p.a = w->get_alpha(w, p.a); \
 798            if (blend) { \
 799                ifb +=  get_pixel_ifb(ifb, &p_old); \
 800                exynos4210_fimd_blend_pixel(w, p_old, &p); \
 801            } \
 802            dst += put_pixel_ifb(p, dst); \
 803        } \
 804        width -= (64 / (N)); \
 805    } while (width > 0); \
 806}
 807
 808/* Draw line with direct color value in RAM frame buffer data */
 809#define DEF_DRAW_LINE_NOPALETTE(N) \
 810static void glue(draw_line_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
 811                    uint8_t *dst, bool blend) \
 812{ \
 813    int width = w->rightbot_x - w->lefttop_x + 1; \
 814    uint8_t *ifb = dst; \
 815    uint8_t swap = (w->wincon & FIMD_WINCON_SWAP) >> FIMD_WINCON_SWAP_SHIFT; \
 816    uint64_t data; \
 817    rgba p, p_old; \
 818    int i; \
 819    do { \
 820        memcpy(&data, src, sizeof(data)); \
 821        src += 8; \
 822        fimd_swap_data(swap, &data); \
 823        for (i = (64 / (N) - 1); i >= 0; i--) { \
 824            w->pixel_to_rgb((data >> ((N) * i)) & ((1ULL << (N)) - 1), &p); \
 825            p.a = w->get_alpha(w, p.a); \
 826            if (blend) { \
 827                ifb += get_pixel_ifb(ifb, &p_old); \
 828                exynos4210_fimd_blend_pixel(w, p_old, &p); \
 829            } \
 830            dst += put_pixel_ifb(p, dst); \
 831        } \
 832        width -= (64 / (N)); \
 833    } while (width > 0); \
 834}
 835
 836DEF_DRAW_LINE_PALETTE(1)
 837DEF_DRAW_LINE_PALETTE(2)
 838DEF_DRAW_LINE_PALETTE(4)
 839DEF_DRAW_LINE_PALETTE(8)
 840DEF_DRAW_LINE_NOPALETTE(8)  /* 8bpp mode has palette and non-palette versions */
 841DEF_DRAW_LINE_NOPALETTE(16)
 842DEF_DRAW_LINE_NOPALETTE(32)
 843
 844/* Special draw line routine for window color map case */
 845static void draw_line_mapcolor(Exynos4210fimdWindow *w, uint8_t *src,
 846                       uint8_t *dst, bool blend)
 847{
 848    rgba p, p_old;
 849    uint8_t *ifb = dst;
 850    int width = w->rightbot_x - w->lefttop_x + 1;
 851    uint32_t map_color = w->winmap & FIMD_WINMAP_COLOR_MASK;
 852
 853    do {
 854        pixel_888_to_rgb(map_color, &p);
 855        p.a = w->get_alpha(w, p.a);
 856        if (blend) {
 857            ifb += get_pixel_ifb(ifb, &p_old);
 858            exynos4210_fimd_blend_pixel(w, p_old, &p);
 859        }
 860        dst += put_pixel_ifb(p, dst);
 861    } while (--width);
 862}
 863
 864/* Write RGB to QEMU's GraphicConsole framebuffer */
 865
 866static int put_to_qemufb_pixel8(const rgba p, uint8_t *d)
 867{
 868    uint32_t pixel = rgb_to_pixel8(p.r, p.g, p.b);
 869    *(uint8_t *)d = pixel;
 870    return 1;
 871}
 872
 873static int put_to_qemufb_pixel15(const rgba p, uint8_t *d)
 874{
 875    uint32_t pixel = rgb_to_pixel15(p.r, p.g, p.b);
 876    *(uint16_t *)d = pixel;
 877    return 2;
 878}
 879
 880static int put_to_qemufb_pixel16(const rgba p, uint8_t *d)
 881{
 882    uint32_t pixel = rgb_to_pixel16(p.r, p.g, p.b);
 883    *(uint16_t *)d = pixel;
 884    return 2;
 885}
 886
 887static int put_to_qemufb_pixel24(const rgba p, uint8_t *d)
 888{
 889    uint32_t pixel = rgb_to_pixel24(p.r, p.g, p.b);
 890    *(uint8_t *)d++ = (pixel >>  0) & 0xFF;
 891    *(uint8_t *)d++ = (pixel >>  8) & 0xFF;
 892    *(uint8_t *)d++ = (pixel >> 16) & 0xFF;
 893    return 3;
 894}
 895
 896static int put_to_qemufb_pixel32(const rgba p, uint8_t *d)
 897{
 898    uint32_t pixel = rgb_to_pixel24(p.r, p.g, p.b);
 899    *(uint32_t *)d = pixel;
 900    return 4;
 901}
 902
 903/* Routine to copy pixel from internal buffer to QEMU buffer */
 904static int (*put_pixel_toqemu)(const rgba p, uint8_t *pixel);
 905static inline void fimd_update_putpix_qemu(int bpp)
 906{
 907    switch (bpp) {
 908    case 8:
 909        put_pixel_toqemu = put_to_qemufb_pixel8;
 910        break;
 911    case 15:
 912        put_pixel_toqemu = put_to_qemufb_pixel15;
 913        break;
 914    case 16:
 915        put_pixel_toqemu = put_to_qemufb_pixel16;
 916        break;
 917    case 24:
 918        put_pixel_toqemu = put_to_qemufb_pixel24;
 919        break;
 920    case 32:
 921        put_pixel_toqemu = put_to_qemufb_pixel32;
 922        break;
 923    default:
 924        hw_error("exynos4210.fimd: unsupported BPP (%d)", bpp);
 925        break;
 926    }
 927}
 928
 929/* Routine to copy a line from internal frame buffer to QEMU display */
 930static void fimd_copy_line_toqemu(int width, uint8_t *src, uint8_t *dst)
 931{
 932    rgba p;
 933
 934    do {
 935        src += get_pixel_ifb(src, &p);
 936        dst += put_pixel_toqemu(p, dst);
 937    } while (--width);
 938}
 939
 940/* Parse BPPMODE_F = WINCON1[5:2] bits */
 941static void exynos4210_fimd_update_win_bppmode(Exynos4210fimdState *s, int win)
 942{
 943    Exynos4210fimdWindow *w = &s->window[win];
 944
 945    if (w->winmap & FIMD_WINMAP_EN) {
 946        w->draw_line = draw_line_mapcolor;
 947        return;
 948    }
 949
 950    switch (WIN_BPP_MODE(w)) {
 951    case 0:
 952        w->draw_line = draw_line_palette_1;
 953        w->pixel_to_rgb =
 954                palette_data_format[exynos4210_fimd_palette_format(s, win)];
 955        break;
 956    case 1:
 957        w->draw_line = draw_line_palette_2;
 958        w->pixel_to_rgb =
 959                palette_data_format[exynos4210_fimd_palette_format(s, win)];
 960        break;
 961    case 2:
 962        w->draw_line = draw_line_palette_4;
 963        w->pixel_to_rgb =
 964                palette_data_format[exynos4210_fimd_palette_format(s, win)];
 965        break;
 966    case 3:
 967        w->draw_line = draw_line_palette_8;
 968        w->pixel_to_rgb =
 969                palette_data_format[exynos4210_fimd_palette_format(s, win)];
 970        break;
 971    case 4:
 972        w->draw_line = draw_line_8;
 973        w->pixel_to_rgb = pixel_a232_to_rgb;
 974        break;
 975    case 5:
 976        w->draw_line = draw_line_16;
 977        w->pixel_to_rgb = pixel_565_to_rgb;
 978        break;
 979    case 6:
 980        w->draw_line = draw_line_16;
 981        w->pixel_to_rgb = pixel_a555_to_rgb;
 982        break;
 983    case 7:
 984        w->draw_line = draw_line_16;
 985        w->pixel_to_rgb = pixel_1555_to_rgb;
 986        break;
 987    case 8:
 988        w->draw_line = draw_line_32;
 989        w->pixel_to_rgb = pixel_666_to_rgb;
 990        break;
 991    case 9:
 992        w->draw_line = draw_line_32;
 993        w->pixel_to_rgb = pixel_a665_to_rgb;
 994        break;
 995    case 10:
 996        w->draw_line = draw_line_32;
 997        w->pixel_to_rgb = pixel_a666_to_rgb;
 998        break;
 999    case 11:
1000        w->draw_line = draw_line_32;
1001        w->pixel_to_rgb = pixel_888_to_rgb;
1002        break;
1003    case 12:
1004        w->draw_line = draw_line_32;
1005        w->pixel_to_rgb = pixel_a887_to_rgb;
1006        break;
1007    case 13:
1008        w->draw_line = draw_line_32;
1009        if ((w->wincon & FIMD_WINCON_BLD_PIX) && (w->wincon &
1010                FIMD_WINCON_ALPHA_SEL)) {
1011            w->pixel_to_rgb = pixel_8888_to_rgb;
1012        } else {
1013            w->pixel_to_rgb = pixel_a888_to_rgb;
1014        }
1015        break;
1016    case 14:
1017        w->draw_line = draw_line_16;
1018        if ((w->wincon & FIMD_WINCON_BLD_PIX) && (w->wincon &
1019                FIMD_WINCON_ALPHA_SEL)) {
1020            w->pixel_to_rgb = pixel_4444_to_rgb;
1021        } else {
1022            w->pixel_to_rgb = pixel_a444_to_rgb;
1023        }
1024        break;
1025    case 15:
1026        w->draw_line = draw_line_16;
1027        w->pixel_to_rgb = pixel_555_to_rgb;
1028        break;
1029    }
1030}
1031
1032#if EXYNOS4210_FIMD_MODE_TRACE > 0
1033static const char *exynos4210_fimd_get_bppmode(int mode_code)
1034{
1035    switch (mode_code) {
1036    case 0:
1037        return "1 bpp";
1038    case 1:
1039        return "2 bpp";
1040    case 2:
1041        return "4 bpp";
1042    case 3:
1043        return "8 bpp (palettized)";
1044    case 4:
1045        return "8 bpp (non-palettized, A: 1-R:2-G:3-B:2)";
1046    case 5:
1047        return "16 bpp (non-palettized, R:5-G:6-B:5)";
1048    case 6:
1049        return "16 bpp (non-palettized, A:1-R:5-G:5-B:5)";
1050    case 7:
1051        return "16 bpp (non-palettized, I :1-R:5-G:5-B:5)";
1052    case 8:
1053        return "Unpacked 18 bpp (non-palettized, R:6-G:6-B:6)";
1054    case 9:
1055        return "Unpacked 18bpp (non-palettized,A:1-R:6-G:6-B:5)";
1056    case 10:
1057        return "Unpacked 19bpp (non-palettized,A:1-R:6-G:6-B:6)";
1058    case 11:
1059        return "Unpacked 24 bpp (non-palettized R:8-G:8-B:8)";
1060    case 12:
1061        return "Unpacked 24 bpp (non-palettized A:1-R:8-G:8-B:7)";
1062    case 13:
1063        return "Unpacked 25 bpp (non-palettized A:1-R:8-G:8-B:8)";
1064    case 14:
1065        return "Unpacked 13 bpp (non-palettized A:1-R:4-G:4-B:4)";
1066    case 15:
1067        return "Unpacked 15 bpp (non-palettized R:5-G:5-B:5)";
1068    default:
1069        return "Non-existing bpp mode";
1070    }
1071}
1072
1073static inline void exynos4210_fimd_trace_bppmode(Exynos4210fimdState *s,
1074                int win_num, uint32_t val)
1075{
1076    Exynos4210fimdWindow *w = &s->window[win_num];
1077
1078    if (w->winmap & FIMD_WINMAP_EN) {
1079        printf("QEMU FIMD: Window %d is mapped with MAPCOLOR=0x%x\n",
1080                win_num, w->winmap & 0xFFFFFF);
1081        return;
1082    }
1083
1084    if ((val != 0xFFFFFFFF) && ((w->wincon >> 2) & 0xF) == ((val >> 2) & 0xF)) {
1085        return;
1086    }
1087    printf("QEMU FIMD: Window %d BPP mode set to %s\n", win_num,
1088        exynos4210_fimd_get_bppmode((val >> 2) & 0xF));
1089}
1090#else
1091static inline void exynos4210_fimd_trace_bppmode(Exynos4210fimdState *s,
1092        int win_num, uint32_t val)
1093{
1094
1095}
1096#endif
1097
1098static inline int fimd_get_buffer_id(Exynos4210fimdWindow *w)
1099{
1100    switch (w->wincon & FIMD_WINCON_BUFSTATUS) {
1101    case FIMD_WINCON_BUF0_STAT:
1102        return 0;
1103    case FIMD_WINCON_BUF1_STAT:
1104        return 1;
1105    case FIMD_WINCON_BUF2_STAT:
1106        return 2;
1107    default:
1108        DPRINT_ERROR("Non-existent buffer index\n");
1109        return 0;
1110    }
1111}
1112
1113static void exynos4210_fimd_invalidate(void *opaque)
1114{
1115    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
1116    s->invalidate = true;
1117}
1118
1119/* Updates specified window's MemorySection based on values of WINCON,
1120 * VIDOSDA, VIDOSDB, VIDWADDx and SHADOWCON registers */
1121static void fimd_update_memory_section(Exynos4210fimdState *s, unsigned win)
1122{
1123    SysBusDevice *sbd = SYS_BUS_DEVICE(s);
1124    Exynos4210fimdWindow *w = &s->window[win];
1125    hwaddr fb_start_addr, fb_mapped_len;
1126
1127    if (!s->enabled || !(w->wincon & FIMD_WINCON_ENWIN) ||
1128            FIMD_WINDOW_PROTECTED(s->shadowcon, win)) {
1129        return;
1130    }
1131
1132    if (w->host_fb_addr) {
1133        cpu_physical_memory_unmap(w->host_fb_addr, w->fb_len, 0, 0);
1134        w->host_fb_addr = NULL;
1135        w->fb_len = 0;
1136    }
1137
1138    fb_start_addr = w->buf_start[fimd_get_buffer_id(w)];
1139    /* Total number of bytes of virtual screen used by current window */
1140    w->fb_len = fb_mapped_len = (w->virtpage_width + w->virtpage_offsize) *
1141            (w->rightbot_y - w->lefttop_y + 1);
1142
1143    /* TODO: add .exit and unref the region there.  Not needed yet since sysbus
1144     * does not support hot-unplug.
1145     */
1146    if (w->mem_section.mr) {
1147        memory_region_set_log(w->mem_section.mr, false, DIRTY_MEMORY_VGA);
1148        memory_region_unref(w->mem_section.mr);
1149    }
1150
1151    w->mem_section = memory_region_find(sysbus_address_space(sbd),
1152                                        fb_start_addr, w->fb_len);
1153    assert(w->mem_section.mr);
1154    assert(w->mem_section.offset_within_address_space == fb_start_addr);
1155    DPRINT_TRACE("Window %u framebuffer changed: address=0x%08x, len=0x%x\n",
1156            win, fb_start_addr, w->fb_len);
1157
1158    if (int128_get64(w->mem_section.size) != w->fb_len ||
1159            !memory_region_is_ram(w->mem_section.mr)) {
1160        DPRINT_ERROR("Failed to find window %u framebuffer region\n", win);
1161        goto error_return;
1162    }
1163
1164    w->host_fb_addr = cpu_physical_memory_map(fb_start_addr, &fb_mapped_len, 0);
1165    if (!w->host_fb_addr) {
1166        DPRINT_ERROR("Failed to map window %u framebuffer\n", win);
1167        goto error_return;
1168    }
1169
1170    if (fb_mapped_len != w->fb_len) {
1171        DPRINT_ERROR("Window %u mapped framebuffer length is less then "
1172                "expected\n", win);
1173        cpu_physical_memory_unmap(w->host_fb_addr, fb_mapped_len, 0, 0);
1174        goto error_return;
1175    }
1176    memory_region_set_log(w->mem_section.mr, true, DIRTY_MEMORY_VGA);
1177    exynos4210_fimd_invalidate(s);
1178    return;
1179
1180error_return:
1181    memory_region_unref(w->mem_section.mr);
1182    w->mem_section.mr = NULL;
1183    w->mem_section.size = int128_zero();
1184    w->host_fb_addr = NULL;
1185    w->fb_len = 0;
1186}
1187
1188static void exynos4210_fimd_enable(Exynos4210fimdState *s, bool enabled)
1189{
1190    if (enabled && !s->enabled) {
1191        unsigned w;
1192        s->enabled = true;
1193        for (w = 0; w < NUM_OF_WINDOWS; w++) {
1194            fimd_update_memory_section(s, w);
1195        }
1196    }
1197    s->enabled = enabled;
1198    DPRINT_TRACE("display controller %s\n", enabled ? "enabled" : "disabled");
1199}
1200
1201static inline uint32_t unpack_upper_4(uint32_t x)
1202{
1203    return ((x & 0xF00) << 12) | ((x & 0xF0) << 8) | ((x & 0xF) << 4);
1204}
1205
1206static inline uint32_t pack_upper_4(uint32_t x)
1207{
1208    return (((x & 0xF00000) >> 12) | ((x & 0xF000) >> 8) |
1209            ((x & 0xF0) >> 4)) & 0xFFF;
1210}
1211
1212static void exynos4210_fimd_update_irq(Exynos4210fimdState *s)
1213{
1214    if (!(s->vidintcon[0] & FIMD_VIDINT_INTEN)) {
1215        qemu_irq_lower(s->irq[0]);
1216        qemu_irq_lower(s->irq[1]);
1217        qemu_irq_lower(s->irq[2]);
1218        return;
1219    }
1220    if ((s->vidintcon[0] & FIMD_VIDINT_INTFIFOEN) &&
1221            (s->vidintcon[1] & FIMD_VIDINT_INTFIFOPEND)) {
1222        qemu_irq_raise(s->irq[0]);
1223    } else {
1224        qemu_irq_lower(s->irq[0]);
1225    }
1226    if ((s->vidintcon[0] & FIMD_VIDINT_INTFRMEN) &&
1227            (s->vidintcon[1] & FIMD_VIDINT_INTFRMPEND)) {
1228        qemu_irq_raise(s->irq[1]);
1229    } else {
1230        qemu_irq_lower(s->irq[1]);
1231    }
1232    if ((s->vidintcon[0] & FIMD_VIDINT_I80IFDONE) &&
1233            (s->vidintcon[1] & FIMD_VIDINT_INTI80PEND)) {
1234        qemu_irq_raise(s->irq[2]);
1235    } else {
1236        qemu_irq_lower(s->irq[2]);
1237    }
1238}
1239
1240static void exynos4210_update_resolution(Exynos4210fimdState *s)
1241{
1242    DisplaySurface *surface = qemu_console_surface(s->console);
1243
1244    /* LCD resolution is stored in VIDEO TIME CONTROL REGISTER 2 */
1245    uint32_t width = ((s->vidtcon[2] >> FIMD_VIDTCON2_HOR_SHIFT) &
1246            FIMD_VIDTCON2_SIZE_MASK) + 1;
1247    uint32_t height = ((s->vidtcon[2] >> FIMD_VIDTCON2_VER_SHIFT) &
1248            FIMD_VIDTCON2_SIZE_MASK) + 1;
1249
1250    if (s->ifb == NULL || surface_width(surface) != width ||
1251            surface_height(surface) != height) {
1252        DPRINT_L1("Resolution changed from %ux%u to %ux%u\n",
1253           surface_width(surface), surface_height(surface), width, height);
1254        qemu_console_resize(s->console, width, height);
1255        s->ifb = g_realloc(s->ifb, width * height * RGBA_SIZE + 1);
1256        memset(s->ifb, 0, width * height * RGBA_SIZE + 1);
1257        exynos4210_fimd_invalidate(s);
1258    }
1259}
1260
1261static void exynos4210_fimd_update(void *opaque)
1262{
1263    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
1264    DisplaySurface *surface;
1265    Exynos4210fimdWindow *w;
1266    DirtyBitmapSnapshot *snap;
1267    int i, line;
1268    hwaddr fb_line_addr, inc_size;
1269    int scrn_height;
1270    int first_line = -1, last_line = -1, scrn_width;
1271    bool blend = false;
1272    uint8_t *host_fb_addr;
1273    bool is_dirty = false;
1274    const int global_width = (s->vidtcon[2] & FIMD_VIDTCON2_SIZE_MASK) + 1;
1275
1276    if (!s || !s->console || !s->enabled ||
1277        surface_bits_per_pixel(qemu_console_surface(s->console)) == 0) {
1278        return;
1279    }
1280    exynos4210_update_resolution(s);
1281    surface = qemu_console_surface(s->console);
1282
1283    for (i = 0; i < NUM_OF_WINDOWS; i++) {
1284        w = &s->window[i];
1285        if ((w->wincon & FIMD_WINCON_ENWIN) && w->host_fb_addr) {
1286            scrn_height = w->rightbot_y - w->lefttop_y + 1;
1287            scrn_width = w->virtpage_width;
1288            /* Total width of virtual screen page in bytes */
1289            inc_size = scrn_width + w->virtpage_offsize;
1290            host_fb_addr = w->host_fb_addr;
1291            fb_line_addr = w->mem_section.offset_within_region;
1292            snap = memory_region_snapshot_and_clear_dirty(w->mem_section.mr,
1293                    fb_line_addr, inc_size * scrn_height, DIRTY_MEMORY_VGA);
1294
1295            for (line = 0; line < scrn_height; line++) {
1296                is_dirty = memory_region_snapshot_get_dirty(w->mem_section.mr,
1297                            snap, fb_line_addr, scrn_width);
1298
1299                if (s->invalidate || is_dirty) {
1300                    if (first_line == -1) {
1301                        first_line = line;
1302                    }
1303                    last_line = line;
1304                    w->draw_line(w, host_fb_addr, s->ifb +
1305                        w->lefttop_x * RGBA_SIZE + (w->lefttop_y + line) *
1306                        global_width * RGBA_SIZE, blend);
1307                }
1308                host_fb_addr += inc_size;
1309                fb_line_addr += inc_size;
1310                is_dirty = false;
1311            }
1312            g_free(snap);
1313            blend = true;
1314        }
1315    }
1316
1317    /* Copy resulting image to QEMU_CONSOLE. */
1318    if (first_line >= 0) {
1319        uint8_t *d;
1320        int bpp;
1321
1322        bpp = surface_bits_per_pixel(surface);
1323        fimd_update_putpix_qemu(bpp);
1324        bpp = (bpp + 1) >> 3;
1325        d = surface_data(surface);
1326        for (line = first_line; line <= last_line; line++) {
1327            fimd_copy_line_toqemu(global_width, s->ifb + global_width * line *
1328                    RGBA_SIZE, d + global_width * line * bpp);
1329        }
1330        dpy_gfx_update_full(s->console);
1331    }
1332    s->invalidate = false;
1333    s->vidintcon[1] |= FIMD_VIDINT_INTFRMPEND;
1334    if ((s->vidcon[0] & FIMD_VIDCON0_ENVID_F) == 0) {
1335        exynos4210_fimd_enable(s, false);
1336    }
1337    exynos4210_fimd_update_irq(s);
1338}
1339
1340static void exynos4210_fimd_reset(DeviceState *d)
1341{
1342    Exynos4210fimdState *s = EXYNOS4210_FIMD(d);
1343    unsigned w;
1344
1345    DPRINT_TRACE("Display controller reset\n");
1346    /* Set all display controller registers to 0 */
1347    memset(&s->vidcon, 0, (uint8_t *)&s->window - (uint8_t *)&s->vidcon);
1348    for (w = 0; w < NUM_OF_WINDOWS; w++) {
1349        memset(&s->window[w], 0, sizeof(Exynos4210fimdWindow));
1350        s->window[w].blendeq = 0xC2;
1351        exynos4210_fimd_update_win_bppmode(s, w);
1352        exynos4210_fimd_trace_bppmode(s, w, 0xFFFFFFFF);
1353        fimd_update_get_alpha(s, w);
1354    }
1355
1356    g_free(s->ifb);
1357    s->ifb = NULL;
1358
1359    exynos4210_fimd_invalidate(s);
1360    exynos4210_fimd_enable(s, false);
1361    /* Some registers have non-zero initial values */
1362    s->winchmap = 0x7D517D51;
1363    s->colorgaincon = 0x10040100;
1364    s->huecoef_cr[0] = s->huecoef_cr[3] = 0x01000100;
1365    s->huecoef_cb[0] = s->huecoef_cb[3] = 0x01000100;
1366    s->hueoffset = 0x01800080;
1367}
1368
1369static void exynos4210_fimd_write(void *opaque, hwaddr offset,
1370                              uint64_t val, unsigned size)
1371{
1372    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
1373    unsigned w, i;
1374    uint32_t old_value;
1375
1376    DPRINT_L2("write offset 0x%08x, value=%llu(0x%08llx)\n", offset,
1377            (long long unsigned int)val, (long long unsigned int)val);
1378
1379    switch (offset) {
1380    case FIMD_VIDCON0:
1381        if ((val & FIMD_VIDCON0_ENVID_MASK) == FIMD_VIDCON0_ENVID_MASK) {
1382            exynos4210_fimd_enable(s, true);
1383        } else {
1384            if ((val & FIMD_VIDCON0_ENVID) == 0) {
1385                exynos4210_fimd_enable(s, false);
1386            }
1387        }
1388        s->vidcon[0] = val;
1389        break;
1390    case FIMD_VIDCON1:
1391        /* Leave read-only bits as is */
1392        val = (val & (~FIMD_VIDCON1_ROMASK)) |
1393                (s->vidcon[1] & FIMD_VIDCON1_ROMASK);
1394        s->vidcon[1] = val;
1395        break;
1396    case FIMD_VIDCON2 ... FIMD_VIDCON3:
1397        s->vidcon[(offset) >> 2] = val;
1398        break;
1399    case FIMD_VIDTCON_START ... FIMD_VIDTCON_END:
1400        s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2] = val;
1401        break;
1402    case FIMD_WINCON_START ... FIMD_WINCON_END:
1403        w = (offset - FIMD_WINCON_START) >> 2;
1404        /* Window's current buffer ID */
1405        i = fimd_get_buffer_id(&s->window[w]);
1406        old_value = s->window[w].wincon;
1407        val = (val & ~FIMD_WINCON_ROMASK) |
1408                (s->window[w].wincon & FIMD_WINCON_ROMASK);
1409        if (w == 0) {
1410            /* Window 0 wincon ALPHA_MUL bit must always be 0 */
1411            val &= ~FIMD_WINCON_ALPHA_MUL;
1412        }
1413        exynos4210_fimd_trace_bppmode(s, w, val);
1414        switch (val & FIMD_WINCON_BUFSELECT) {
1415        case FIMD_WINCON_BUF0_SEL:
1416            val &= ~FIMD_WINCON_BUFSTATUS;
1417            break;
1418        case FIMD_WINCON_BUF1_SEL:
1419            val = (val & ~FIMD_WINCON_BUFSTAT_H) | FIMD_WINCON_BUFSTAT_L;
1420            break;
1421        case FIMD_WINCON_BUF2_SEL:
1422            if (val & FIMD_WINCON_BUFMODE) {
1423                val = (val & ~FIMD_WINCON_BUFSTAT_L) | FIMD_WINCON_BUFSTAT_H;
1424            }
1425            break;
1426        default:
1427            break;
1428        }
1429        s->window[w].wincon = val;
1430        exynos4210_fimd_update_win_bppmode(s, w);
1431        fimd_update_get_alpha(s, w);
1432        if ((i != fimd_get_buffer_id(&s->window[w])) ||
1433                (!(old_value & FIMD_WINCON_ENWIN) && (s->window[w].wincon &
1434                        FIMD_WINCON_ENWIN))) {
1435            fimd_update_memory_section(s, w);
1436        }
1437        break;
1438    case FIMD_SHADOWCON:
1439        old_value = s->shadowcon;
1440        s->shadowcon = val;
1441        for (w = 0; w < NUM_OF_WINDOWS; w++) {
1442            if (FIMD_WINDOW_PROTECTED(old_value, w) &&
1443                    !FIMD_WINDOW_PROTECTED(s->shadowcon, w)) {
1444                fimd_update_memory_section(s, w);
1445            }
1446        }
1447        break;
1448    case FIMD_WINCHMAP:
1449        s->winchmap = val;
1450        break;
1451    case FIMD_VIDOSD_START ... FIMD_VIDOSD_END:
1452        w = (offset - FIMD_VIDOSD_START) >> 4;
1453        i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;
1454        switch (i) {
1455        case 0:
1456            old_value = s->window[w].lefttop_y;
1457            s->window[w].lefttop_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &
1458                                      FIMD_VIDOSD_COORD_MASK;
1459            s->window[w].lefttop_y = (val >> FIMD_VIDOSD_VER_SHIFT) &
1460                                      FIMD_VIDOSD_COORD_MASK;
1461            if (s->window[w].lefttop_y != old_value) {
1462                fimd_update_memory_section(s, w);
1463            }
1464            break;
1465        case 1:
1466            old_value = s->window[w].rightbot_y;
1467            s->window[w].rightbot_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &
1468                                       FIMD_VIDOSD_COORD_MASK;
1469            s->window[w].rightbot_y = (val >> FIMD_VIDOSD_VER_SHIFT) &
1470                                       FIMD_VIDOSD_COORD_MASK;
1471            if (s->window[w].rightbot_y != old_value) {
1472                fimd_update_memory_section(s, w);
1473            }
1474            break;
1475        case 2:
1476            if (w == 0) {
1477                s->window[w].osdsize = val;
1478            } else {
1479                s->window[w].alpha_val[0] =
1480                    unpack_upper_4((val & FIMD_VIDOSD_ALPHA_AEN0) >>
1481                    FIMD_VIDOSD_AEN0_SHIFT) |
1482                    (s->window[w].alpha_val[0] & FIMD_VIDALPHA_ALPHA_LOWER);
1483                s->window[w].alpha_val[1] =
1484                    unpack_upper_4(val & FIMD_VIDOSD_ALPHA_AEN1) |
1485                    (s->window[w].alpha_val[1] & FIMD_VIDALPHA_ALPHA_LOWER);
1486            }
1487            break;
1488        case 3:
1489            if (w != 1 && w != 2) {
1490                DPRINT_ERROR("Bad write offset 0x%08x\n", offset);
1491                return;
1492            }
1493            s->window[w].osdsize = val;
1494            break;
1495        }
1496        break;
1497    case FIMD_VIDWADD0_START ... FIMD_VIDWADD0_END:
1498        w = (offset - FIMD_VIDWADD0_START) >> 3;
1499        i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;
1500        if (i == fimd_get_buffer_id(&s->window[w]) &&
1501                s->window[w].buf_start[i] != val) {
1502            s->window[w].buf_start[i] = val;
1503            fimd_update_memory_section(s, w);
1504            break;
1505        }
1506        s->window[w].buf_start[i] = val;
1507        break;
1508    case FIMD_VIDWADD1_START ... FIMD_VIDWADD1_END:
1509        w = (offset - FIMD_VIDWADD1_START) >> 3;
1510        i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;
1511        s->window[w].buf_end[i] = val;
1512        break;
1513    case FIMD_VIDWADD2_START ... FIMD_VIDWADD2_END:
1514        w = (offset - FIMD_VIDWADD2_START) >> 2;
1515        if (((val & FIMD_VIDWADD2_PAGEWIDTH) != s->window[w].virtpage_width) ||
1516            (((val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) & FIMD_VIDWADD2_OFFSIZE) !=
1517                        s->window[w].virtpage_offsize)) {
1518            s->window[w].virtpage_width = val & FIMD_VIDWADD2_PAGEWIDTH;
1519            s->window[w].virtpage_offsize =
1520                (val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) & FIMD_VIDWADD2_OFFSIZE;
1521            fimd_update_memory_section(s, w);
1522        }
1523        break;
1524    case FIMD_VIDINTCON0:
1525        s->vidintcon[0] = val;
1526        break;
1527    case FIMD_VIDINTCON1:
1528        s->vidintcon[1] &= ~(val & 7);
1529        exynos4210_fimd_update_irq(s);
1530        break;
1531    case FIMD_WKEYCON_START ... FIMD_WKEYCON_END:
1532        w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;
1533        i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;
1534        s->window[w].keycon[i] = val;
1535        break;
1536    case FIMD_WKEYALPHA_START ... FIMD_WKEYALPHA_END:
1537        w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;
1538        s->window[w].keyalpha = val;
1539        break;
1540    case FIMD_DITHMODE:
1541        s->dithmode = val;
1542        break;
1543    case FIMD_WINMAP_START ... FIMD_WINMAP_END:
1544        w = (offset - FIMD_WINMAP_START) >> 2;
1545        old_value = s->window[w].winmap;
1546        s->window[w].winmap = val;
1547        if ((val & FIMD_WINMAP_EN) ^ (old_value & FIMD_WINMAP_EN)) {
1548            exynos4210_fimd_invalidate(s);
1549            exynos4210_fimd_update_win_bppmode(s, w);
1550            exynos4210_fimd_trace_bppmode(s, w, 0xFFFFFFFF);
1551            exynos4210_fimd_update(s);
1552        }
1553        break;
1554    case FIMD_WPALCON_HIGH ... FIMD_WPALCON_LOW:
1555        i = (offset - FIMD_WPALCON_HIGH) >> 2;
1556        s->wpalcon[i] = val;
1557        if (s->wpalcon[1] & FIMD_WPALCON_UPDATEEN) {
1558            for (w = 0; w < NUM_OF_WINDOWS; w++) {
1559                exynos4210_fimd_update_win_bppmode(s, w);
1560                fimd_update_get_alpha(s, w);
1561            }
1562        }
1563        break;
1564    case FIMD_TRIGCON:
1565        val = (val & ~FIMD_TRIGCON_ROMASK) | (s->trigcon & FIMD_TRIGCON_ROMASK);
1566        s->trigcon = val;
1567        break;
1568    case FIMD_I80IFCON_START ... FIMD_I80IFCON_END:
1569        s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2] = val;
1570        break;
1571    case FIMD_COLORGAINCON:
1572        s->colorgaincon = val;
1573        break;
1574    case FIMD_LDI_CMDCON0 ... FIMD_LDI_CMDCON1:
1575        s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2] = val;
1576        break;
1577    case FIMD_SIFCCON0 ... FIMD_SIFCCON2:
1578        i = (offset - FIMD_SIFCCON0) >> 2;
1579        if (i != 2) {
1580            s->sifccon[i] = val;
1581        }
1582        break;
1583    case FIMD_HUECOEFCR_START ... FIMD_HUECOEFCR_END:
1584        i = (offset - FIMD_HUECOEFCR_START) >> 2;
1585        s->huecoef_cr[i] = val;
1586        break;
1587    case FIMD_HUECOEFCB_START ... FIMD_HUECOEFCB_END:
1588        i = (offset - FIMD_HUECOEFCB_START) >> 2;
1589        s->huecoef_cb[i] = val;
1590        break;
1591    case FIMD_HUEOFFSET:
1592        s->hueoffset = val;
1593        break;
1594    case FIMD_VIDWALPHA_START ... FIMD_VIDWALPHA_END:
1595        w = ((offset - FIMD_VIDWALPHA_START) >> 3);
1596        i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;
1597        if (w == 0) {
1598            s->window[w].alpha_val[i] = val;
1599        } else {
1600            s->window[w].alpha_val[i] = (val & FIMD_VIDALPHA_ALPHA_LOWER) |
1601                (s->window[w].alpha_val[i] & FIMD_VIDALPHA_ALPHA_UPPER);
1602        }
1603        break;
1604    case FIMD_BLENDEQ_START ... FIMD_BLENDEQ_END:
1605        s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq = val;
1606        break;
1607    case FIMD_BLENDCON:
1608        old_value = s->blendcon;
1609        s->blendcon = val;
1610        if ((s->blendcon & FIMD_ALPHA_8BIT) != (old_value & FIMD_ALPHA_8BIT)) {
1611            for (w = 0; w < NUM_OF_WINDOWS; w++) {
1612                fimd_update_get_alpha(s, w);
1613            }
1614        }
1615        break;
1616    case FIMD_WRTQOSCON_START ... FIMD_WRTQOSCON_END:
1617        s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon = val;
1618        break;
1619    case FIMD_I80IFCMD_START ... FIMD_I80IFCMD_END:
1620        s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2] = val;
1621        break;
1622    case FIMD_VIDW0ADD0_B2 ... FIMD_VIDW4ADD0_B2:
1623        if (offset & 0x0004) {
1624            DPRINT_ERROR("bad write offset 0x%08x\n", offset);
1625            break;
1626        }
1627        w = (offset - FIMD_VIDW0ADD0_B2) >> 3;
1628        if (fimd_get_buffer_id(&s->window[w]) == 2 &&
1629                s->window[w].buf_start[2] != val) {
1630            s->window[w].buf_start[2] = val;
1631            fimd_update_memory_section(s, w);
1632            break;
1633        }
1634        s->window[w].buf_start[2] = val;
1635        break;
1636    case FIMD_SHD_ADD0_START ... FIMD_SHD_ADD0_END:
1637        if (offset & 0x0004) {
1638            DPRINT_ERROR("bad write offset 0x%08x\n", offset);
1639            break;
1640        }
1641        s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start = val;
1642        break;
1643    case FIMD_SHD_ADD1_START ... FIMD_SHD_ADD1_END:
1644        if (offset & 0x0004) {
1645            DPRINT_ERROR("bad write offset 0x%08x\n", offset);
1646            break;
1647        }
1648        s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end = val;
1649        break;
1650    case FIMD_SHD_ADD2_START ... FIMD_SHD_ADD2_END:
1651        s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size = val;
1652        break;
1653    case FIMD_PAL_MEM_START ... FIMD_PAL_MEM_END:
1654        w = (offset - FIMD_PAL_MEM_START) >> 10;
1655        i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;
1656        s->window[w].palette[i] = val;
1657        break;
1658    case FIMD_PALMEM_AL_START ... FIMD_PALMEM_AL_END:
1659        /* Palette memory aliases for windows 0 and 1 */
1660        w = (offset - FIMD_PALMEM_AL_START) >> 10;
1661        i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;
1662        s->window[w].palette[i] = val;
1663        break;
1664    default:
1665        DPRINT_ERROR("bad write offset 0x%08x\n", offset);
1666        break;
1667    }
1668}
1669
1670static uint64_t exynos4210_fimd_read(void *opaque, hwaddr offset,
1671                                  unsigned size)
1672{
1673    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
1674    int w, i;
1675    uint32_t ret = 0;
1676
1677    DPRINT_L2("read offset 0x%08x\n", offset);
1678
1679    switch (offset) {
1680    case FIMD_VIDCON0 ... FIMD_VIDCON3:
1681        return s->vidcon[(offset - FIMD_VIDCON0) >> 2];
1682    case FIMD_VIDTCON_START ... FIMD_VIDTCON_END:
1683        return s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2];
1684    case FIMD_WINCON_START ... FIMD_WINCON_END:
1685        return s->window[(offset - FIMD_WINCON_START) >> 2].wincon;
1686    case FIMD_SHADOWCON:
1687        return s->shadowcon;
1688    case FIMD_WINCHMAP:
1689        return s->winchmap;
1690    case FIMD_VIDOSD_START ... FIMD_VIDOSD_END:
1691        w = (offset - FIMD_VIDOSD_START) >> 4;
1692        i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;
1693        switch (i) {
1694        case 0:
1695            ret = ((s->window[w].lefttop_x & FIMD_VIDOSD_COORD_MASK) <<
1696            FIMD_VIDOSD_HOR_SHIFT) |
1697            (s->window[w].lefttop_y & FIMD_VIDOSD_COORD_MASK);
1698            break;
1699        case 1:
1700            ret = ((s->window[w].rightbot_x & FIMD_VIDOSD_COORD_MASK) <<
1701                FIMD_VIDOSD_HOR_SHIFT) |
1702                (s->window[w].rightbot_y & FIMD_VIDOSD_COORD_MASK);
1703            break;
1704        case 2:
1705            if (w == 0) {
1706                ret = s->window[w].osdsize;
1707            } else {
1708                ret = (pack_upper_4(s->window[w].alpha_val[0]) <<
1709                    FIMD_VIDOSD_AEN0_SHIFT) |
1710                    pack_upper_4(s->window[w].alpha_val[1]);
1711            }
1712            break;
1713        case 3:
1714            if (w != 1 && w != 2) {
1715                DPRINT_ERROR("bad read offset 0x%08x\n", offset);
1716                return 0xBAADBAAD;
1717            }
1718            ret = s->window[w].osdsize;
1719            break;
1720        }
1721        return ret;
1722    case FIMD_VIDWADD0_START ... FIMD_VIDWADD0_END:
1723        w = (offset - FIMD_VIDWADD0_START) >> 3;
1724        i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;
1725        return s->window[w].buf_start[i];
1726    case FIMD_VIDWADD1_START ... FIMD_VIDWADD1_END:
1727        w = (offset - FIMD_VIDWADD1_START) >> 3;
1728        i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;
1729        return s->window[w].buf_end[i];
1730    case FIMD_VIDWADD2_START ... FIMD_VIDWADD2_END:
1731        w = (offset - FIMD_VIDWADD2_START) >> 2;
1732        return s->window[w].virtpage_width | (s->window[w].virtpage_offsize <<
1733            FIMD_VIDWADD2_OFFSIZE_SHIFT);
1734    case FIMD_VIDINTCON0 ... FIMD_VIDINTCON1:
1735        return s->vidintcon[(offset - FIMD_VIDINTCON0) >> 2];
1736    case FIMD_WKEYCON_START ... FIMD_WKEYCON_END:
1737        w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;
1738        i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;
1739        return s->window[w].keycon[i];
1740    case FIMD_WKEYALPHA_START ... FIMD_WKEYALPHA_END:
1741        w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;
1742        return s->window[w].keyalpha;
1743    case FIMD_DITHMODE:
1744        return s->dithmode;
1745    case FIMD_WINMAP_START ... FIMD_WINMAP_END:
1746        return s->window[(offset - FIMD_WINMAP_START) >> 2].winmap;
1747    case FIMD_WPALCON_HIGH ... FIMD_WPALCON_LOW:
1748        return s->wpalcon[(offset - FIMD_WPALCON_HIGH) >> 2];
1749    case FIMD_TRIGCON:
1750        return s->trigcon;
1751    case FIMD_I80IFCON_START ... FIMD_I80IFCON_END:
1752        return s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2];
1753    case FIMD_COLORGAINCON:
1754        return s->colorgaincon;
1755    case FIMD_LDI_CMDCON0 ... FIMD_LDI_CMDCON1:
1756        return s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2];
1757    case FIMD_SIFCCON0 ... FIMD_SIFCCON2:
1758        i = (offset - FIMD_SIFCCON0) >> 2;
1759        return s->sifccon[i];
1760    case FIMD_HUECOEFCR_START ... FIMD_HUECOEFCR_END:
1761        i = (offset - FIMD_HUECOEFCR_START) >> 2;
1762        return s->huecoef_cr[i];
1763    case FIMD_HUECOEFCB_START ... FIMD_HUECOEFCB_END:
1764        i = (offset - FIMD_HUECOEFCB_START) >> 2;
1765        return s->huecoef_cb[i];
1766    case FIMD_HUEOFFSET:
1767        return s->hueoffset;
1768    case FIMD_VIDWALPHA_START ... FIMD_VIDWALPHA_END:
1769        w = ((offset - FIMD_VIDWALPHA_START) >> 3);
1770        i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;
1771        return s->window[w].alpha_val[i] &
1772                (w == 0 ? 0xFFFFFF : FIMD_VIDALPHA_ALPHA_LOWER);
1773    case FIMD_BLENDEQ_START ... FIMD_BLENDEQ_END:
1774        return s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq;
1775    case FIMD_BLENDCON:
1776        return s->blendcon;
1777    case FIMD_WRTQOSCON_START ... FIMD_WRTQOSCON_END:
1778        return s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon;
1779    case FIMD_I80IFCMD_START ... FIMD_I80IFCMD_END:
1780        return s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2];
1781    case FIMD_VIDW0ADD0_B2 ... FIMD_VIDW4ADD0_B2:
1782        if (offset & 0x0004) {
1783            break;
1784        }
1785        return s->window[(offset - FIMD_VIDW0ADD0_B2) >> 3].buf_start[2];
1786    case FIMD_SHD_ADD0_START ... FIMD_SHD_ADD0_END:
1787        if (offset & 0x0004) {
1788            break;
1789        }
1790        return s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start;
1791    case FIMD_SHD_ADD1_START ... FIMD_SHD_ADD1_END:
1792        if (offset & 0x0004) {
1793            break;
1794        }
1795        return s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end;
1796    case FIMD_SHD_ADD2_START ... FIMD_SHD_ADD2_END:
1797        return s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size;
1798    case FIMD_PAL_MEM_START ... FIMD_PAL_MEM_END:
1799        w = (offset - FIMD_PAL_MEM_START) >> 10;
1800        i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;
1801        return s->window[w].palette[i];
1802    case FIMD_PALMEM_AL_START ... FIMD_PALMEM_AL_END:
1803        /* Palette aliases for win 0,1 */
1804        w = (offset - FIMD_PALMEM_AL_START) >> 10;
1805        i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;
1806        return s->window[w].palette[i];
1807    }
1808
1809    DPRINT_ERROR("bad read offset 0x%08x\n", offset);
1810    return 0xBAADBAAD;
1811}
1812
1813static const MemoryRegionOps exynos4210_fimd_mmio_ops = {
1814    .read = exynos4210_fimd_read,
1815    .write = exynos4210_fimd_write,
1816    .valid = {
1817        .min_access_size = 4,
1818        .max_access_size = 4,
1819        .unaligned = false
1820    },
1821    .endianness = DEVICE_NATIVE_ENDIAN,
1822};
1823
1824static int exynos4210_fimd_load(void *opaque, int version_id)
1825{
1826    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
1827    int w;
1828
1829    if (version_id != 1) {
1830        return -EINVAL;
1831    }
1832
1833    for (w = 0; w < NUM_OF_WINDOWS; w++) {
1834        exynos4210_fimd_update_win_bppmode(s, w);
1835        fimd_update_get_alpha(s, w);
1836        fimd_update_memory_section(s, w);
1837    }
1838
1839    /* Redraw the whole screen */
1840    exynos4210_update_resolution(s);
1841    exynos4210_fimd_invalidate(s);
1842    exynos4210_fimd_enable(s, (s->vidcon[0] & FIMD_VIDCON0_ENVID_MASK) ==
1843            FIMD_VIDCON0_ENVID_MASK);
1844    return 0;
1845}
1846
1847static const VMStateDescription exynos4210_fimd_window_vmstate = {
1848    .name = "exynos4210.fimd_window",
1849    .version_id = 1,
1850    .minimum_version_id = 1,
1851    .fields = (VMStateField[]) {
1852        VMSTATE_UINT32(wincon, Exynos4210fimdWindow),
1853        VMSTATE_UINT32_ARRAY(buf_start, Exynos4210fimdWindow, 3),
1854        VMSTATE_UINT32_ARRAY(buf_end, Exynos4210fimdWindow, 3),
1855        VMSTATE_UINT32_ARRAY(keycon, Exynos4210fimdWindow, 2),
1856        VMSTATE_UINT32(keyalpha, Exynos4210fimdWindow),
1857        VMSTATE_UINT32(winmap, Exynos4210fimdWindow),
1858        VMSTATE_UINT32(blendeq, Exynos4210fimdWindow),
1859        VMSTATE_UINT32(rtqoscon, Exynos4210fimdWindow),
1860        VMSTATE_UINT32_ARRAY(palette, Exynos4210fimdWindow, 256),
1861        VMSTATE_UINT32(shadow_buf_start, Exynos4210fimdWindow),
1862        VMSTATE_UINT32(shadow_buf_end, Exynos4210fimdWindow),
1863        VMSTATE_UINT32(shadow_buf_size, Exynos4210fimdWindow),
1864        VMSTATE_UINT16(lefttop_x, Exynos4210fimdWindow),
1865        VMSTATE_UINT16(lefttop_y, Exynos4210fimdWindow),
1866        VMSTATE_UINT16(rightbot_x, Exynos4210fimdWindow),
1867        VMSTATE_UINT16(rightbot_y, Exynos4210fimdWindow),
1868        VMSTATE_UINT32(osdsize, Exynos4210fimdWindow),
1869        VMSTATE_UINT32_ARRAY(alpha_val, Exynos4210fimdWindow, 2),
1870        VMSTATE_UINT16(virtpage_width, Exynos4210fimdWindow),
1871        VMSTATE_UINT16(virtpage_offsize, Exynos4210fimdWindow),
1872        VMSTATE_END_OF_LIST()
1873    }
1874};
1875
1876static const VMStateDescription exynos4210_fimd_vmstate = {
1877    .name = "exynos4210.fimd",
1878    .version_id = 1,
1879    .minimum_version_id = 1,
1880    .post_load = exynos4210_fimd_load,
1881    .fields = (VMStateField[]) {
1882        VMSTATE_UINT32_ARRAY(vidcon, Exynos4210fimdState, 4),
1883        VMSTATE_UINT32_ARRAY(vidtcon, Exynos4210fimdState, 4),
1884        VMSTATE_UINT32(shadowcon, Exynos4210fimdState),
1885        VMSTATE_UINT32(winchmap, Exynos4210fimdState),
1886        VMSTATE_UINT32_ARRAY(vidintcon, Exynos4210fimdState, 2),
1887        VMSTATE_UINT32(dithmode, Exynos4210fimdState),
1888        VMSTATE_UINT32_ARRAY(wpalcon, Exynos4210fimdState, 2),
1889        VMSTATE_UINT32(trigcon, Exynos4210fimdState),
1890        VMSTATE_UINT32_ARRAY(i80ifcon, Exynos4210fimdState, 4),
1891        VMSTATE_UINT32(colorgaincon, Exynos4210fimdState),
1892        VMSTATE_UINT32_ARRAY(ldi_cmdcon, Exynos4210fimdState, 2),
1893        VMSTATE_UINT32_ARRAY(sifccon, Exynos4210fimdState, 3),
1894        VMSTATE_UINT32_ARRAY(huecoef_cr, Exynos4210fimdState, 4),
1895        VMSTATE_UINT32_ARRAY(huecoef_cb, Exynos4210fimdState, 4),
1896        VMSTATE_UINT32(hueoffset, Exynos4210fimdState),
1897        VMSTATE_UINT32_ARRAY(i80ifcmd, Exynos4210fimdState, 12),
1898        VMSTATE_UINT32(blendcon, Exynos4210fimdState),
1899        VMSTATE_STRUCT_ARRAY(window, Exynos4210fimdState, 5, 1,
1900                exynos4210_fimd_window_vmstate, Exynos4210fimdWindow),
1901        VMSTATE_END_OF_LIST()
1902    }
1903};
1904
1905static const GraphicHwOps exynos4210_fimd_ops = {
1906    .invalidate  = exynos4210_fimd_invalidate,
1907    .gfx_update  = exynos4210_fimd_update,
1908};
1909
1910static void exynos4210_fimd_init(Object *obj)
1911{
1912    Exynos4210fimdState *s = EXYNOS4210_FIMD(obj);
1913    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
1914
1915    s->ifb = NULL;
1916
1917    sysbus_init_irq(dev, &s->irq[0]);
1918    sysbus_init_irq(dev, &s->irq[1]);
1919    sysbus_init_irq(dev, &s->irq[2]);
1920
1921    memory_region_init_io(&s->iomem, obj, &exynos4210_fimd_mmio_ops, s,
1922            "exynos4210.fimd", FIMD_REGS_SIZE);
1923    sysbus_init_mmio(dev, &s->iomem);
1924}
1925
1926static void exynos4210_fimd_realize(DeviceState *dev, Error **errp)
1927{
1928    Exynos4210fimdState *s = EXYNOS4210_FIMD(dev);
1929
1930    s->console = graphic_console_init(dev, 0, &exynos4210_fimd_ops, s);
1931}
1932
1933static void exynos4210_fimd_class_init(ObjectClass *klass, void *data)
1934{
1935    DeviceClass *dc = DEVICE_CLASS(klass);
1936
1937    dc->vmsd = &exynos4210_fimd_vmstate;
1938    dc->reset = exynos4210_fimd_reset;
1939    dc->realize = exynos4210_fimd_realize;
1940}
1941
1942static const TypeInfo exynos4210_fimd_info = {
1943    .name = TYPE_EXYNOS4210_FIMD,
1944    .parent = TYPE_SYS_BUS_DEVICE,
1945    .instance_size = sizeof(Exynos4210fimdState),
1946    .instance_init = exynos4210_fimd_init,
1947    .class_init = exynos4210_fimd_class_init,
1948};
1949
1950static void exynos4210_fimd_register_types(void)
1951{
1952    type_register_static(&exynos4210_fimd_info);
1953}
1954
1955type_init(exynos4210_fimd_register_types)
1956