Exynos4210: added display controller implementation

Exynos4210 display controller (FIMD) has 5 hardware windows with alpha and
chroma key blending functions.

Signed-off-by: Mitsyanko Igor <i.mitsyanko@samsung.com>
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 1928 insertions, 0 deletions

diff --git a/hw/exynos4210_fimd.c b/hw/exynos4210_fimd.c
new file mode 100644
index 0000000000..3313f00a71
--- /dev/null
+++ b/hw/exynos4210_fimd.c
@@ -0,0 +1,1928 @@
+/*
+ * Samsung exynos4210 Display Controller (FIMD)
+ *
+ * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
+ * All rights reserved.
+ * Based on LCD controller for Samsung S5PC1xx-based board emulation
+ * by Kirill Batuzov <batuzovk@ispras.ru>
+ *
+ * Contributed by Mitsyanko Igor <i.mitsyanko@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "cpu-all.h"
+#include "sysbus.h"
+#include "console.h"
+#include "pixel_ops.h"
+#include "bswap.h"
+
+/* Debug messages configuration */
+#define EXYNOS4210_FIMD_DEBUG              0
+#define EXYNOS4210_FIMD_MODE_TRACE         0
+
+#if EXYNOS4210_FIMD_DEBUG == 0
+    #define DPRINT_L1(fmt, args...)       do { } while (0)
+    #define DPRINT_L2(fmt, args...)       do { } while (0)
+    #define DPRINT_ERROR(fmt, args...)    do { } while (0)
+#elif EXYNOS4210_FIMD_DEBUG == 1
+    #define DPRINT_L1(fmt, args...) \
+        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+    #define DPRINT_L2(fmt, args...)       do { } while (0)
+    #define DPRINT_ERROR(fmt, args...)  \
+        do {fprintf(stderr, "QEMU FIMD ERROR: "fmt, ## args); } while (0)
+#else
+    #define DPRINT_L1(fmt, args...) \
+        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+    #define DPRINT_L2(fmt, args...) \
+        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+    #define DPRINT_ERROR(fmt, args...)  \
+        do {fprintf(stderr, "QEMU FIMD ERROR: "fmt, ## args); } while (0)
+#endif
+
+#if EXYNOS4210_FIMD_MODE_TRACE == 0
+    #define DPRINT_TRACE(fmt, args...)        do { } while (0)
+#else
+    #define DPRINT_TRACE(fmt, args...)        \
+        do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+#endif
+
+#define NUM_OF_WINDOWS              5
+#define FIMD_REGS_SIZE              0x4114
+
+/* Video main control registers */
+#define FIMD_VIDCON0                0x0000
+#define FIMD_VIDCON1                0x0004
+#define FIMD_VIDCON2                0x0008
+#define FIMD_VIDCON3                0x000C
+#define FIMD_VIDCON0_ENVID_F        (1 << 0)
+#define FIMD_VIDCON0_ENVID          (1 << 1)
+#define FIMD_VIDCON0_ENVID_MASK     ((1 << 0) | (1 << 1))
+#define FIMD_VIDCON1_ROMASK         0x07FFE000
+
+/* Video time control registers */
+#define FIMD_VIDTCON_START          0x10
+#define FIMD_VIDTCON_END            0x1C
+#define FIMD_VIDTCON2_SIZE_MASK     0x07FF
+#define FIMD_VIDTCON2_HOR_SHIFT     0
+#define FIMD_VIDTCON2_VER_SHIFT     11
+
+/* Window control registers */
+#define FIMD_WINCON_START           0x0020
+#define FIMD_WINCON_END             0x0030
+#define FIMD_WINCON_ROMASK          0x82200000
+#define FIMD_WINCON_ENWIN           (1 << 0)
+#define FIMD_WINCON_BLD_PIX         (1 << 6)
+#define FIMD_WINCON_ALPHA_MUL       (1 << 7)
+#define FIMD_WINCON_ALPHA_SEL       (1 << 1)
+#define FIMD_WINCON_SWAP            0x078000
+#define FIMD_WINCON_SWAP_SHIFT      15
+#define FIMD_WINCON_SWAP_WORD       0x1
+#define FIMD_WINCON_SWAP_HWORD      0x2
+#define FIMD_WINCON_SWAP_BYTE       0x4
+#define FIMD_WINCON_SWAP_BITS       0x8
+#define FIMD_WINCON_BUFSTAT_L       (1 << 21)
+#define FIMD_WINCON_BUFSTAT_H       (1 << 31)
+#define FIMD_WINCON_BUFSTATUS       ((1 << 21) | (1 << 31))
+#define FIMD_WINCON_BUF0_STAT       ((0 << 21) | (0 << 31))
+#define FIMD_WINCON_BUF1_STAT       ((1 << 21) | (0 << 31))
+#define FIMD_WINCON_BUF2_STAT       ((0 << 21) | (1 << 31))
+#define FIMD_WINCON_BUFSELECT       ((1 << 20) | (1 << 30))
+#define FIMD_WINCON_BUF0_SEL        ((0 << 20) | (0 << 30))
+#define FIMD_WINCON_BUF1_SEL        ((1 << 20) | (0 << 30))
+#define FIMD_WINCON_BUF2_SEL        ((0 << 20) | (1 << 30))
+#define FIMD_WINCON_BUFMODE         (1 << 14)
+#define IS_PALETTIZED_MODE(w)       (w->wincon & 0xC)
+#define PAL_MODE_WITH_ALPHA(x)       ((x) == 7)
+#define WIN_BPP_MODE(w)             ((w->wincon >> 2) & 0xF)
+#define WIN_BPP_MODE_WITH_ALPHA(w)     \
+    (WIN_BPP_MODE(w) == 0xD || WIN_BPP_MODE(w) == 0xE)
+
+/* Shadow control register */
+#define FIMD_SHADOWCON              0x0034
+#define FIMD_WINDOW_PROTECTED(s, w) ((s) & (1 << (10 + (w))))
+/* Channel mapping control register */
+#define FIMD_WINCHMAP               0x003C
+
+/* Window position control registers */
+#define FIMD_VIDOSD_START           0x0040
+#define FIMD_VIDOSD_END             0x0088
+#define FIMD_VIDOSD_COORD_MASK      0x07FF
+#define FIMD_VIDOSD_HOR_SHIFT       11
+#define FIMD_VIDOSD_VER_SHIFT       0
+#define FIMD_VIDOSD_ALPHA_AEN0      0xFFF000
+#define FIMD_VIDOSD_AEN0_SHIFT      12
+#define FIMD_VIDOSD_ALPHA_AEN1      0x000FFF
+
+/* Frame buffer address registers */
+#define FIMD_VIDWADD0_START         0x00A0
+#define FIMD_VIDWADD0_END           0x00C4
+#define FIMD_VIDWADD0_END           0x00C4
+#define FIMD_VIDWADD1_START         0x00D0
+#define FIMD_VIDWADD1_END           0x00F4
+#define FIMD_VIDWADD2_START         0x0100
+#define FIMD_VIDWADD2_END           0x0110
+#define FIMD_VIDWADD2_PAGEWIDTH     0x1FFF
+#define FIMD_VIDWADD2_OFFSIZE       0x1FFF
+#define FIMD_VIDWADD2_OFFSIZE_SHIFT 13
+#define FIMD_VIDW0ADD0_B2           0x20A0
+#define FIMD_VIDW4ADD0_B2           0x20C0
+
+/* Video interrupt control registers */
+#define FIMD_VIDINTCON0             0x130
+#define FIMD_VIDINTCON1             0x134
+
+/* Window color key registers */
+#define FIMD_WKEYCON_START          0x140
+#define FIMD_WKEYCON_END            0x15C
+#define FIMD_WKEYCON0_COMPKEY       0x00FFFFFF
+#define FIMD_WKEYCON0_CTL_SHIFT     24
+#define FIMD_WKEYCON0_DIRCON        (1 << 24)
+#define FIMD_WKEYCON0_KEYEN         (1 << 25)
+#define FIMD_WKEYCON0_KEYBLEN       (1 << 26)
+/* Window color key alpha control register */
+#define FIMD_WKEYALPHA_START        0x160
+#define FIMD_WKEYALPHA_END          0x16C
+
+/* Dithering control register */
+#define FIMD_DITHMODE               0x170
+
+/* Window alpha control registers */
+#define FIMD_VIDALPHA_ALPHA_LOWER   0x000F0F0F
+#define FIMD_VIDALPHA_ALPHA_UPPER   0x00F0F0F0
+#define FIMD_VIDWALPHA_START        0x21C
+#define FIMD_VIDWALPHA_END          0x240
+
+/* Window color map registers */
+#define FIMD_WINMAP_START           0x180
+#define FIMD_WINMAP_END             0x190
+#define FIMD_WINMAP_EN              (1 << 24)
+#define FIMD_WINMAP_COLOR_MASK      0x00FFFFFF
+
+/* Window palette control registers */
+#define FIMD_WPALCON_HIGH           0x019C
+#define FIMD_WPALCON_LOW            0x01A0
+#define FIMD_WPALCON_UPDATEEN       (1 << 9)
+#define FIMD_WPAL_W0PAL_L           0x07
+#define FIMD_WPAL_W0PAL_L_SHT        0
+#define FIMD_WPAL_W1PAL_L           0x07
+#define FIMD_WPAL_W1PAL_L_SHT       3
+#define FIMD_WPAL_W2PAL_L           0x01
+#define FIMD_WPAL_W2PAL_L_SHT       6
+#define FIMD_WPAL_W2PAL_H           0x06
+#define FIMD_WPAL_W2PAL_H_SHT       8
+#define FIMD_WPAL_W3PAL_L           0x01
+#define FIMD_WPAL_W3PAL_L_SHT       7
+#define FIMD_WPAL_W3PAL_H           0x06
+#define FIMD_WPAL_W3PAL_H_SHT       12
+#define FIMD_WPAL_W4PAL_L           0x01
+#define FIMD_WPAL_W4PAL_L_SHT       8
+#define FIMD_WPAL_W4PAL_H           0x06
+#define FIMD_WPAL_W4PAL_H_SHT       16
+
+/* Trigger control registers */
+#define FIMD_TRIGCON                0x01A4
+#define FIMD_TRIGCON_ROMASK         0x00000004
+
+/* LCD I80 Interface Control */
+#define FIMD_I80IFCON_START         0x01B0
+#define FIMD_I80IFCON_END           0x01BC
+/* Color gain control register */
+#define FIMD_COLORGAINCON           0x01C0
+/* LCD i80 Interface Command Control */
+#define FIMD_LDI_CMDCON0            0x01D0
+#define FIMD_LDI_CMDCON1            0x01D4
+/* I80 System Interface Manual Command Control */
+#define FIMD_SIFCCON0               0x01E0
+#define FIMD_SIFCCON2               0x01E8
+
+/* Hue Control Registers */
+#define FIMD_HUECOEFCR_START        0x01EC
+#define FIMD_HUECOEFCR_END          0x01F4
+#define FIMD_HUECOEFCB_START        0x01FC
+#define FIMD_HUECOEFCB_END          0x0208
+#define FIMD_HUEOFFSET              0x020C
+
+/* Video interrupt control registers */
+#define FIMD_VIDINT_INTFIFOPEND     (1 << 0)
+#define FIMD_VIDINT_INTFRMPEND      (1 << 1)
+#define FIMD_VIDINT_INTI80PEND      (1 << 2)
+#define FIMD_VIDINT_INTEN           (1 << 0)
+#define FIMD_VIDINT_INTFIFOEN       (1 << 1)
+#define FIMD_VIDINT_INTFRMEN        (1 << 12)
+#define FIMD_VIDINT_I80IFDONE       (1 << 17)
+
+/* Window blend equation control registers */
+#define FIMD_BLENDEQ_START          0x0244
+#define FIMD_BLENDEQ_END            0x0250
+#define FIMD_BLENDCON               0x0260
+#define FIMD_ALPHA_8BIT             (1 << 0)
+#define FIMD_BLENDEQ_COEF_MASK      0xF
+
+/* Window RTQOS Control Registers */
+#define FIMD_WRTQOSCON_START        0x0264
+#define FIMD_WRTQOSCON_END          0x0274
+
+/* LCD I80 Interface Command */
+#define FIMD_I80IFCMD_START         0x0280
+#define FIMD_I80IFCMD_END           0x02AC
+
+/* Shadow windows control registers */
+#define FIMD_SHD_ADD0_START         0x40A0
+#define FIMD_SHD_ADD0_END           0x40C0
+#define FIMD_SHD_ADD1_START         0x40D0
+#define FIMD_SHD_ADD1_END           0x40F0
+#define FIMD_SHD_ADD2_START         0x4100
+#define FIMD_SHD_ADD2_END           0x4110
+
+/* Palette memory */
+#define FIMD_PAL_MEM_START          0x2400
+#define FIMD_PAL_MEM_END            0x37FC
+/* Palette memory aliases for windows 0 and 1 */
+#define FIMD_PALMEM_AL_START        0x0400
+#define FIMD_PALMEM_AL_END          0x0BFC
+
+typedef struct {
+    uint8_t r, g, b;
+    /* D[31..24]dummy, D[23..16]rAlpha, D[15..8]gAlpha, D[7..0]bAlpha */
+    uint32_t a;
+} rgba;
+#define RGBA_SIZE  7
+
+typedef void pixel_to_rgb_func(uint32_t pixel, rgba *p);
+typedef struct Exynos4210fimdWindow Exynos4210fimdWindow;
+
+struct Exynos4210fimdWindow {
+    uint32_t wincon;        /* Window control register */
+    uint32_t buf_start[3];  /* Start address for video frame buffer */
+    uint32_t buf_end[3];    /* End address for video frame buffer */
+    uint32_t keycon[2];     /* Window color key registers */
+    uint32_t keyalpha;      /* Color key alpha control register */
+    uint32_t winmap;        /* Window color map register */
+    uint32_t blendeq;       /* Window blending equation control register */
+    uint32_t rtqoscon;      /* Window RTQOS Control Registers */
+    uint32_t palette[256];  /* Palette RAM */
+    uint32_t shadow_buf_start;      /* Start address of shadow frame buffer */
+    uint32_t shadow_buf_end;        /* End address of shadow frame buffer */
+    uint32_t shadow_buf_size;       /* Virtual shadow screen width */
+
+    pixel_to_rgb_func *pixel_to_rgb;
+    void (*draw_line)(Exynos4210fimdWindow *w, uint8_t *src, uint8_t *dst,
+            bool blend);
+    uint32_t (*get_alpha)(Exynos4210fimdWindow *w, uint32_t pix_a);
+    uint16_t lefttop_x, lefttop_y;   /* VIDOSD0 register */
+    uint16_t rightbot_x, rightbot_y; /* VIDOSD1 register */
+    uint32_t osdsize;                /* VIDOSD2&3 register */
+    uint32_t alpha_val[2];           /* VIDOSD2&3, VIDWALPHA registers */
+    uint16_t virtpage_width;         /* VIDWADD2 register */
+    uint16_t virtpage_offsize;       /* VIDWADD2 register */
+    MemoryRegionSection mem_section; /* RAM fragment containing framebuffer */
+    uint8_t *host_fb_addr;           /* Host pointer to window's framebuffer */
+    target_phys_addr_t fb_len;       /* Framebuffer length */
+};
+
+typedef struct {
+    SysBusDevice busdev;
+    MemoryRegion iomem;
+    DisplayState *console;
+    qemu_irq irq[3];
+
+    uint32_t vidcon[4];     /* Video main control registers 0-3 */
+    uint32_t vidtcon[4];    /* Video time control registers 0-3 */
+    uint32_t shadowcon;     /* Window shadow control register */
+    uint32_t winchmap;      /* Channel mapping control register */
+    uint32_t vidintcon[2];  /* Video interrupt control registers */
+    uint32_t dithmode;      /* Dithering control register */
+    uint32_t wpalcon[2];    /* Window palette control registers */
+    uint32_t trigcon;       /* Trigger control register */
+    uint32_t i80ifcon[4];   /* I80 interface control registers */
+    uint32_t colorgaincon;  /* Color gain control register */
+    uint32_t ldi_cmdcon[2]; /* LCD I80 interface command control */
+    uint32_t sifccon[3];    /* I80 System Interface Manual Command Control */
+    uint32_t huecoef_cr[4]; /* Hue control registers */
+    uint32_t huecoef_cb[4]; /* Hue control registers */
+    uint32_t hueoffset;     /* Hue offset control register */
+    uint32_t blendcon;      /* Blending control register */
+    uint32_t i80ifcmd[12];  /* LCD I80 Interface Command */
+
+    Exynos4210fimdWindow window[5];    /* Window-specific registers */
+    uint8_t *ifb;           /* Internal frame buffer */
+    bool invalidate;        /* Image needs to be redrawn */
+    bool enabled;           /* Display controller is enabled */
+} Exynos4210fimdState;
+
+/* Perform byte/halfword/word swap of data according to WINCON */
+static inline void fimd_swap_data(unsigned int swap_ctl, uint64_t *data)
+{
+    int i;
+    uint64_t res;
+    uint64_t x = *data;
+
+    if (swap_ctl & FIMD_WINCON_SWAP_BITS) {
+        res = 0;
+        for (i = 0; i < 64; i++) {
+            if (x & (1ULL << (64 - i))) {
+                res |= (1ULL << i);
+            }
+        }
+        x = res;
+    }
+
+    if (swap_ctl & FIMD_WINCON_SWAP_BYTE) {
+        x = bswap64(x);
+    }
+
+    if (swap_ctl & FIMD_WINCON_SWAP_HWORD) {
+        x = ((x & 0x000000000000FFFFULL) << 48) |
+            ((x & 0x00000000FFFF0000ULL) << 16) |
+            ((x & 0x0000FFFF00000000ULL) >> 16) |
+            ((x & 0xFFFF000000000000ULL) >> 48);
+    }
+
+    if (swap_ctl & FIMD_WINCON_SWAP_WORD) {
+        x = ((x & 0x00000000FFFFFFFFULL) << 32) |
+            ((x & 0xFFFFFFFF00000000ULL) >> 32);
+    }
+
+    *data = x;
+}
+
+/* Conversion routines of Pixel data from frame buffer area to internal RGBA
+ * pixel representation.
+ * Every color component internally represented as 8-bit value. If original
+ * data has less than 8 bit for component, data is extended to 8 bit. For
+ * example, if blue component has only two possible values 0 and 1 it will be
+ * extended to 0 and 0xFF */
+
+/* One bit for alpha representation */
+#define DEF_PIXEL_TO_RGB_A1(N, R, G, B) \
+static void N(uint32_t pixel, rgba *p) \
+{ \
+    p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
+           ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
+    pixel >>= (B); \
+    p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
+           ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
+    pixel >>= (G); \
+    p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
+           ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
+    pixel >>= (R); \
+    p->a = (pixel & 0x1); \
+}
+
+DEF_PIXEL_TO_RGB_A1(pixel_a444_to_rgb, 4, 4, 4)
+DEF_PIXEL_TO_RGB_A1(pixel_a555_to_rgb, 5, 5, 5)
+DEF_PIXEL_TO_RGB_A1(pixel_a666_to_rgb, 6, 6, 6)
+DEF_PIXEL_TO_RGB_A1(pixel_a665_to_rgb, 6, 6, 5)
+DEF_PIXEL_TO_RGB_A1(pixel_a888_to_rgb, 8, 8, 8)
+DEF_PIXEL_TO_RGB_A1(pixel_a887_to_rgb, 8, 8, 7)
+
+/* Alpha component is always zero */
+#define DEF_PIXEL_TO_RGB_A0(N, R, G, B) \
+static void N(uint32_t pixel, rgba *p) \
+{ \
+    p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
+           ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
+    pixel >>= (B); \
+    p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
+           ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
+    pixel >>= (G); \
+    p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
+           ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
+    p->a = 0x0; \
+}
+
+DEF_PIXEL_TO_RGB_A0(pixel_565_to_rgb,  5, 6, 5)
+DEF_PIXEL_TO_RGB_A0(pixel_555_to_rgb,  5, 5, 5)
+DEF_PIXEL_TO_RGB_A0(pixel_666_to_rgb,  6, 6, 6)
+DEF_PIXEL_TO_RGB_A0(pixel_888_to_rgb,  8, 8, 8)
+
+/* Alpha component has some meaningful value */
+#define DEF_PIXEL_TO_RGB_A(N, R, G, B, A) \
+static void N(uint32_t pixel, rgba *p) \
+{ \
+    p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
+           ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
+    pixel >>= (B); \
+    p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
+           ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
+    pixel >>= (G); \
+    p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
+           ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
+    pixel >>= (R); \
+    p->a = (pixel & ((1 << (A)) - 1)) << (8 - (A)) | \
+           ((pixel >> (2 * (A) - 8)) & ((1 << (8 - (A))) - 1)); \
+    p->a = p->a | (p->a << 8) | (p->a << 16); \
+}
+
+DEF_PIXEL_TO_RGB_A(pixel_4444_to_rgb, 4, 4, 4, 4)
+DEF_PIXEL_TO_RGB_A(pixel_8888_to_rgb, 8, 8, 8, 8)
+
+/* Lookup table to extent 2-bit color component to 8 bit */
+static const uint8_t pixel_lutable_2b[4] = {
+     0x0, 0x55, 0xAA, 0xFF
+};
+/* Lookup table to extent 3-bit color component to 8 bit */
+static const uint8_t pixel_lutable_3b[8] = {
+     0x0, 0x24, 0x49, 0x6D, 0x92, 0xB6, 0xDB, 0xFF
+};
+/* Special case for a232 bpp mode */
+static void pixel_a232_to_rgb(uint32_t pixel, rgba *p)
+{
+    p->b = pixel_lutable_2b[(pixel & 0x3)];
+    pixel >>= 2;
+    p->g = pixel_lutable_3b[(pixel & 0x7)];
+    pixel >>= 3;
+    p->r = pixel_lutable_2b[(pixel & 0x3)];
+    pixel >>= 2;
+    p->a = (pixel & 0x1);
+}
+
+/* Special case for (5+1, 5+1, 5+1) mode. Data bit 15 is common LSB
+ * for all three color components */
+static void pixel_1555_to_rgb(uint32_t pixel, rgba *p)
+{
+    uint8_t comm = (pixel >> 15) & 1;
+    p->b = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
+    pixel >>= 5;
+    p->g = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
+    pixel >>= 5;
+    p->r = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
+    p->a = 0x0;
+}
+
+/* Put/get pixel to/from internal LCD Controller framebuffer */
+
+static int put_pixel_ifb(const rgba p, uint8_t *d)
+{
+    *(uint8_t *)d++ = p.r;
+    *(uint8_t *)d++ = p.g;
+    *(uint8_t *)d++ = p.b;
+    *(uint32_t *)d = p.a;
+    return RGBA_SIZE;
+}
+
+static int get_pixel_ifb(const uint8_t *s, rgba *p)
+{
+    p->r = *(uint8_t *)s++;
+    p->g = *(uint8_t *)s++;
+    p->b = *(uint8_t *)s++;
+    p->a = (*(uint32_t *)s) & 0x00FFFFFF;
+    return RGBA_SIZE;
+}
+
+static pixel_to_rgb_func *palette_data_format[8] = {
+    [0] = pixel_565_to_rgb,
+    [1] = pixel_a555_to_rgb,
+    [2] = pixel_666_to_rgb,
+    [3] = pixel_a665_to_rgb,
+    [4] = pixel_a666_to_rgb,
+    [5] = pixel_888_to_rgb,
+    [6] = pixel_a888_to_rgb,
+    [7] = pixel_8888_to_rgb
+};
+
+/* Returns Index in palette data formats table for given window number WINDOW */
+static uint32_t
+exynos4210_fimd_palette_format(Exynos4210fimdState *s, int window)
+{
+    uint32_t ret;
+
+    switch (window) {
+    case 0:
+        ret = (s->wpalcon[1] >> FIMD_WPAL_W0PAL_L_SHT) & FIMD_WPAL_W0PAL_L;
+        if (ret != 7) {
+            ret = 6 - ret;
+        }
+        break;
+    case 1:
+        ret = (s->wpalcon[1] >> FIMD_WPAL_W1PAL_L_SHT) & FIMD_WPAL_W1PAL_L;
+        if (ret != 7) {
+            ret = 6 - ret;
+        }
+        break;
+    case 2:
+        ret = ((s->wpalcon[0] >> FIMD_WPAL_W2PAL_H_SHT) & FIMD_WPAL_W2PAL_H) |
+            ((s->wpalcon[1] >> FIMD_WPAL_W2PAL_L_SHT) & FIMD_WPAL_W2PAL_L);
+        break;
+    case 3:
+        ret = ((s->wpalcon[0] >> FIMD_WPAL_W3PAL_H_SHT) & FIMD_WPAL_W3PAL_H) |
+            ((s->wpalcon[1] >> FIMD_WPAL_W3PAL_L_SHT) & FIMD_WPAL_W3PAL_L);
+        break;
+    case 4:
+        ret = ((s->wpalcon[0] >> FIMD_WPAL_W4PAL_H_SHT) & FIMD_WPAL_W4PAL_H) |
+            ((s->wpalcon[1] >> FIMD_WPAL_W4PAL_L_SHT) & FIMD_WPAL_W4PAL_L);
+        break;
+    default:
+        hw_error("exynos4210.fimd: incorrect window number %d\n", window);
+        ret = 0;
+        break;
+    }
+    return ret;
+}
+
+#define FIMD_1_MINUS_COLOR(x)    \
+            ((0xFF - ((x) & 0xFF)) | (0xFF00 - ((x) & 0xFF00)) | \
+                                  (0xFF0000 - ((x) & 0xFF0000)))
+#define EXTEND_LOWER_HALFBYTE(x) (((x) & 0xF0F0F) | (((x) << 4) & 0xF0F0F0))
+#define EXTEND_UPPER_HALFBYTE(x) (((x) & 0xF0F0F0) | (((x) >> 4) & 0xF0F0F))
+
+/* Multiply three lower bytes of two 32-bit words with each other.
+ * Each byte with values 0-255 is considered as a number with possible values
+ * in a range [0 - 1] */
+static inline uint32_t fimd_mult_each_byte(uint32_t a, uint32_t b)
+{
+    uint32_t tmp;
+    uint32_t ret;
+
+    ret = ((tmp = (((a & 0xFF) * (b & 0xFF)) / 0xFF)) > 0xFF) ? 0xFF : tmp;
+    ret |= ((tmp = ((((a >> 8) & 0xFF) * ((b >> 8) & 0xFF)) / 0xFF)) > 0xFF) ?
+            0xFF00 : tmp << 8;
+    ret |= ((tmp = ((((a >> 16) & 0xFF) * ((b >> 16) & 0xFF)) / 0xFF)) > 0xFF) ?
+            0xFF0000 : tmp << 16;
+    return ret;
+}
+
+/* For each corresponding bytes of two 32-bit words: (a*b + c*d)
+ * Byte values 0-255 are mapped to a range [0 .. 1] */
+static inline uint32_t
+fimd_mult_and_sum_each_byte(uint32_t a, uint32_t b, uint32_t c, uint32_t d)
+{
+    uint32_t tmp;
+    uint32_t ret;
+
+    ret = ((tmp = (((a & 0xFF) * (b & 0xFF) + (c & 0xFF) * (d & 0xFF)) / 0xFF))
+            > 0xFF) ? 0xFF : tmp;
+    ret |= ((tmp = ((((a >> 8) & 0xFF) * ((b >> 8) & 0xFF) + ((c >> 8) & 0xFF) *
+            ((d >> 8) & 0xFF)) / 0xFF)) > 0xFF) ? 0xFF00 : tmp << 8;
+    ret |= ((tmp = ((((a >> 16) & 0xFF) * ((b >> 16) & 0xFF) +
+            ((c >> 16) & 0xFF) * ((d >> 16) & 0xFF)) / 0xFF)) > 0xFF) ?
+                    0xFF0000 : tmp << 16;
+    return ret;
+}
+
+/* These routines cover all possible sources of window's transparent factor
+ * used in blending equation. Choice of routine is affected by WPALCON
+ * registers, BLENDCON register and window's WINCON register */
+
+static uint32_t fimd_get_alpha_pix(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return pix_a;
+}
+
+static uint32_t
+fimd_get_alpha_pix_extlow(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return EXTEND_LOWER_HALFBYTE(pix_a);
+}
+
+static uint32_t
+fimd_get_alpha_pix_exthigh(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return EXTEND_UPPER_HALFBYTE(pix_a);
+}
+
+static uint32_t fimd_get_alpha_mult(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return fimd_mult_each_byte(pix_a, w->alpha_val[0]);
+}
+
+static uint32_t fimd_get_alpha_mult_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return fimd_mult_each_byte(EXTEND_LOWER_HALFBYTE(pix_a),
+            EXTEND_UPPER_HALFBYTE(w->alpha_val[0]));
+}
+
+static uint32_t fimd_get_alpha_aen(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return w->alpha_val[pix_a];
+}
+
+static uint32_t fimd_get_alpha_aen_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return EXTEND_UPPER_HALFBYTE(w->alpha_val[pix_a]);
+}
+
+static uint32_t fimd_get_alpha_sel(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return w->alpha_val[(w->wincon & FIMD_WINCON_ALPHA_SEL) ? 1 : 0];
+}
+
+static uint32_t fimd_get_alpha_sel_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+    return EXTEND_UPPER_HALFBYTE(w->alpha_val[(w->wincon &
+            FIMD_WINCON_ALPHA_SEL) ? 1 : 0]);
+}
+
+/* Updates currently active alpha value get function for specified window */
+static void fimd_update_get_alpha(Exynos4210fimdState *s, int win)
+{
+    Exynos4210fimdWindow *w = &s->window[win];
+    const bool alpha_is_8bit = s->blendcon & FIMD_ALPHA_8BIT;
+
+    if (w->wincon & FIMD_WINCON_BLD_PIX) {
+        if ((w->wincon & FIMD_WINCON_ALPHA_SEL) && WIN_BPP_MODE_WITH_ALPHA(w)) {
+            /* In this case, alpha component contains meaningful value */
+            if (w->wincon & FIMD_WINCON_ALPHA_MUL) {
+                w->get_alpha = alpha_is_8bit ?
+                        fimd_get_alpha_mult : fimd_get_alpha_mult_ext;
+            } else {
+                w->get_alpha = alpha_is_8bit ?
+                        fimd_get_alpha_pix : fimd_get_alpha_pix_extlow;
+            }
+        } else {
+            if (IS_PALETTIZED_MODE(w) &&
+                  PAL_MODE_WITH_ALPHA(exynos4210_fimd_palette_format(s, win))) {
+                /* Alpha component has 8-bit numeric value */
+                w->get_alpha = alpha_is_8bit ?
+                        fimd_get_alpha_pix : fimd_get_alpha_pix_exthigh;
+            } else {
+                /* Alpha has only two possible values (AEN) */
+                w->get_alpha = alpha_is_8bit ?
+                        fimd_get_alpha_aen : fimd_get_alpha_aen_ext;
+            }
+        }
+    } else {
+        w->get_alpha = alpha_is_8bit ? fimd_get_alpha_sel :
+                fimd_get_alpha_sel_ext;
+    }
+}
+
+/* Blends current window's (w) pixel (foreground pixel *ret) with background
+ * window (w_blend) pixel p_bg according to formula:
+ * NEW_COLOR = a_coef x FG_PIXEL_COLOR + b_coef x BG_PIXEL_COLOR
+ * NEW_ALPHA = p_coef x FG_ALPHA + q_coef x BG_ALPHA
+ */
+static void
+exynos4210_fimd_blend_pixel(Exynos4210fimdWindow *w, rgba p_bg, rgba *ret)
+{
+    rgba p_fg = *ret;
+    uint32_t bg_color = ((p_bg.r & 0xFF) << 16) | ((p_bg.g & 0xFF) << 8) |
+            (p_bg.b & 0xFF);
+    uint32_t fg_color = ((p_fg.r & 0xFF) << 16) | ((p_fg.g & 0xFF) << 8) |
+            (p_fg.b & 0xFF);
+    uint32_t alpha_fg = p_fg.a;
+    int i;
+    /* It is possible that blending equation parameters a and b do not
+     * depend on window BLENEQ register. Account for this with first_coef */
+    enum { A_COEF = 0, B_COEF = 1, P_COEF = 2, Q_COEF = 3, COEF_NUM = 4};
+    uint32_t first_coef = A_COEF;
+    uint32_t blend_param[COEF_NUM];
+
+    if (w->keycon[0] & FIMD_WKEYCON0_KEYEN) {
+        uint32_t colorkey = (w->keycon[1] &
+              ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) & FIMD_WKEYCON0_COMPKEY;
+
+        if ((w->keycon[0] & FIMD_WKEYCON0_DIRCON) &&
+            (bg_color & ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) == colorkey) {
+            /* Foreground pixel is displayed */
+            if (w->keycon[0] & FIMD_WKEYCON0_KEYBLEN) {
+                alpha_fg = w->keyalpha;
+                blend_param[A_COEF] = alpha_fg;
+                blend_param[B_COEF] = FIMD_1_MINUS_COLOR(alpha_fg);
+            } else {
+                alpha_fg = 0;
+                blend_param[A_COEF] = 0xFFFFFF;
+                blend_param[B_COEF] = 0x0;
+            }
+            first_coef = P_COEF;
+        } else if ((w->keycon[0] & FIMD_WKEYCON0_DIRCON) == 0 &&
+            (fg_color & ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) == colorkey) {
+            /* Background pixel is displayed */
+            if (w->keycon[0] & FIMD_WKEYCON0_KEYBLEN) {
+                alpha_fg = w->keyalpha;
+                blend_param[A_COEF] = alpha_fg;
+                blend_param[B_COEF] = FIMD_1_MINUS_COLOR(alpha_fg);
+            } else {
+                alpha_fg = 0;
+                blend_param[A_COEF] = 0x0;
+                blend_param[B_COEF] = 0xFFFFFF;
+            }
+            first_coef = P_COEF;
+        }
+    }
+
+    for (i = first_coef; i < COEF_NUM; i++) {
+        switch ((w->blendeq >> i * 6) & FIMD_BLENDEQ_COEF_MASK) {
+        case 0:
+            blend_param[i] = 0;
+            break;
+        case 1:
+            blend_param[i] = 0xFFFFFF;
+            break;
+        case 2:
+            blend_param[i] = alpha_fg;
+            break;
+        case 3:
+            blend_param[i] = FIMD_1_MINUS_COLOR(alpha_fg);
+            break;
+        case 4:
+            blend_param[i] = p_bg.a;
+            break;
+        case 5:
+            blend_param[i] = FIMD_1_MINUS_COLOR(p_bg.a);
+            break;
+        case 6:
+            blend_param[i] = w->alpha_val[0];
+            break;
+        case 10:
+            blend_param[i] = fg_color;
+            break;
+        case 11:
+            blend_param[i] = FIMD_1_MINUS_COLOR(fg_color);
+            break;
+        case 12:
+            blend_param[i] = bg_color;
+            break;
+        case 13:
+            blend_param[i] = FIMD_1_MINUS_COLOR(bg_color);
+            break;
+        default:
+            hw_error("exynos4210.fimd: blend equation coef illegal value\n");
+            break;
+        }
+    }
+
+    fg_color = fimd_mult_and_sum_each_byte(bg_color, blend_param[B_COEF],
+            fg_color, blend_param[A_COEF]);
+    ret->b = fg_color & 0xFF;
+    fg_color >>= 8;
+    ret->g = fg_color & 0xFF;
+    fg_color >>= 8;
+    ret->r = fg_color & 0xFF;
+    ret->a = fimd_mult_and_sum_each_byte(alpha_fg, blend_param[P_COEF],
+            p_bg.a, blend_param[Q_COEF]);
+}
+
+/* These routines read data from video frame buffer in system RAM, convert
+ * this data to display controller internal representation, if necessary,
+ * perform pixel blending with data, currently presented in internal buffer.
+ * Result is stored in display controller internal frame buffer. */
+
+/* Draw line with index in palette table in RAM frame buffer data */
+#define DEF_DRAW_LINE_PALETTE(N) \
+static void glue(draw_line_palette_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
+               uint8_t *dst, bool blend) \
+{ \
+    int width = w->rightbot_x - w->lefttop_x + 1; \
+    uint8_t *ifb = dst; \
+    uint8_t swap = (w->wincon & FIMD_WINCON_SWAP) >> FIMD_WINCON_SWAP_SHIFT; \
+    uint64_t data; \
+    rgba p, p_old; \
+    int i; \
+    do { \
+        data = ldq_raw((void *)src); \
+        src += 8; \
+        fimd_swap_data(swap, &data); \
+        for (i = (64 / (N) - 1); i >= 0; i--) { \
+            w->pixel_to_rgb(w->palette[(data >> ((N) * i)) & \
+                                   ((1ULL << (N)) - 1)], &p); \
+            p.a = w->get_alpha(w, p.a); \
+            if (blend) { \
+                ifb +=  get_pixel_ifb(ifb, &p_old); \
+                exynos4210_fimd_blend_pixel(w, p_old, &p); \
+            } \
+            dst += put_pixel_ifb(p, dst); \
+        } \
+        width -= (64 / (N)); \
+    } while (width > 0); \
+}
+
+/* Draw line with direct color value in RAM frame buffer data */
+#define DEF_DRAW_LINE_NOPALETTE(N) \
+static void glue(draw_line_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
+                    uint8_t *dst, bool blend) \
+{ \
+    int width = w->rightbot_x - w->lefttop_x + 1; \
+    uint8_t *ifb = dst; \
+    uint8_t swap = (w->wincon & FIMD_WINCON_SWAP) >> FIMD_WINCON_SWAP_SHIFT; \
+    uint64_t data; \
+    rgba p, p_old; \
+    int i; \
+    do { \
+        data = ldq_raw((void *)src); \
+        src += 8; \
+        fimd_swap_data(swap, &data); \
+        for (i = (64 / (N) - 1); i >= 0; i--) { \
+            w->pixel_to_rgb((data >> ((N) * i)) & ((1ULL << (N)) - 1), &p); \
+            p.a = w->get_alpha(w, p.a); \
+            if (blend) { \
+                ifb += get_pixel_ifb(ifb, &p_old); \
+                exynos4210_fimd_blend_pixel(w, p_old, &p); \
+            } \
+            dst += put_pixel_ifb(p, dst); \
+        } \
+        width -= (64 / (N)); \
+    } while (width > 0); \
+}
+
+DEF_DRAW_LINE_PALETTE(1)
+DEF_DRAW_LINE_PALETTE(2)
+DEF_DRAW_LINE_PALETTE(4)
+DEF_DRAW_LINE_PALETTE(8)
+DEF_DRAW_LINE_NOPALETTE(8)  /* 8bpp mode has palette and non-palette versions */
+DEF_DRAW_LINE_NOPALETTE(16)
+DEF_DRAW_LINE_NOPALETTE(32)
+
+/* Special draw line routine for window color map case */
+static void draw_line_mapcolor(Exynos4210fimdWindow *w, uint8_t *src,
+                       uint8_t *dst, bool blend)
+{
+    rgba p, p_old;
+    uint8_t *ifb = dst;
+    int width = w->rightbot_x - w->lefttop_x + 1;
+    uint32_t map_color = w->winmap & FIMD_WINMAP_COLOR_MASK;
+
+    do {
+        pixel_888_to_rgb(map_color, &p);
+        p.a = w->get_alpha(w, p.a);
+        if (blend) {
+            ifb += get_pixel_ifb(ifb, &p_old);
+            exynos4210_fimd_blend_pixel(w, p_old, &p);
+        }
+        dst += put_pixel_ifb(p, dst);
+    } while (--width);
+}
+
+/* Write RGB to QEMU's GraphicConsole framebuffer */
+
+static int put_to_qemufb_pixel8(const rgba p, uint8_t *d)
+{
+    uint32_t pixel = rgb_to_pixel8(p.r, p.g, p.b);
+    *(uint8_t *)d = pixel;
+    return 1;
+}
+
+static int put_to_qemufb_pixel15(const rgba p, uint8_t *d)
+{
+    uint32_t pixel = rgb_to_pixel15(p.r, p.g, p.b);
+    *(uint16_t *)d = pixel;
+    return 2;
+}
+
+static int put_to_qemufb_pixel16(const rgba p, uint8_t *d)
+{
+    uint32_t pixel = rgb_to_pixel16(p.r, p.g, p.b);
+    *(uint16_t *)d = pixel;
+    return 2;
+}
+
+static int put_to_qemufb_pixel24(const rgba p, uint8_t *d)
+{
+    uint32_t pixel = rgb_to_pixel24(p.r, p.g, p.b);
+    *(uint8_t *)d++ = (pixel >>  0) & 0xFF;
+    *(uint8_t *)d++ = (pixel >>  8) & 0xFF;
+    *(uint8_t *)d++ = (pixel >> 16) & 0xFF;
+    return 3;
+}
+
+static int put_to_qemufb_pixel32(const rgba p, uint8_t *d)
+{
+    uint32_t pixel = rgb_to_pixel24(p.r, p.g, p.b);
+    *(uint32_t *)d = pixel;
+    return 4;
+}
+
+/* Routine to copy pixel from internal buffer to QEMU buffer */
+static int (*put_pixel_toqemu)(const rgba p, uint8_t *pixel);
+static inline void fimd_update_putpix_qemu(int bpp)
+{
+    switch (bpp) {
+    case 8:
+        put_pixel_toqemu = put_to_qemufb_pixel8;
+        break;
+    case 15:
+        put_pixel_toqemu = put_to_qemufb_pixel15;
+        break;
+    case 16:
+        put_pixel_toqemu = put_to_qemufb_pixel16;
+        break;
+    case 24:
+        put_pixel_toqemu = put_to_qemufb_pixel24;
+        break;
+    case 32:
+        put_pixel_toqemu = put_to_qemufb_pixel32;
+        break;
+    default:
+        hw_error("exynos4210.fimd: unsupported BPP (%d)", bpp);
+        break;
+    }
+}
+
+/* Routine to copy a line from internal frame buffer to QEMU display */
+static void fimd_copy_line_toqemu(int width, uint8_t *src, uint8_t *dst)
+{
+    rgba p;
+
+    do {
+        src += get_pixel_ifb(src, &p);
+        dst += put_pixel_toqemu(p, dst);
+    } while (--width);
+}
+
+/* Parse BPPMODE_F = WINCON1[5:2] bits */
+static void exynos4210_fimd_update_win_bppmode(Exynos4210fimdState *s, int win)
+{
+    Exynos4210fimdWindow *w = &s->window[win];
+
+    if (w->winmap & FIMD_WINMAP_EN) {
+        w->draw_line = draw_line_mapcolor;
+        return;
+    }
+
+    switch (WIN_BPP_MODE(w)) {
+    case 0:
+        w->draw_line = draw_line_palette_1;
+        w->pixel_to_rgb =
+                palette_data_format[exynos4210_fimd_palette_format(s, win)];
+        break;
+    case 1:
+        w->draw_line = draw_line_palette_2;
+        w->pixel_to_rgb =
+                palette_data_format[exynos4210_fimd_palette_format(s, win)];
+        break;
+    case 2:
+        w->draw_line = draw_line_palette_4;
+        w->pixel_to_rgb =
+                palette_data_format[exynos4210_fimd_palette_format(s, win)];
+        break;
+    case 3:
+        w->draw_line = draw_line_palette_8;
+        w->pixel_to_rgb =
+                palette_data_format[exynos4210_fimd_palette_format(s, win)];
+        break;
+    case 4:
+        w->draw_line = draw_line_8;
+        w->pixel_to_rgb = pixel_a232_to_rgb;
+        break;
+    case 5:
+        w->draw_line = draw_line_16;
+        w->pixel_to_rgb = pixel_565_to_rgb;
+        break;
+    case 6:
+        w->draw_line = draw_line_16;
+        w->pixel_to_rgb = pixel_a555_to_rgb;
+        break;
+    case 7:
+        w->draw_line = draw_line_16;
+        w->pixel_to_rgb = pixel_1555_to_rgb;
+        break;
+    case 8:
+        w->draw_line = draw_line_32;
+        w->pixel_to_rgb = pixel_666_to_rgb;
+        break;
+    case 9:
+        w->draw_line = draw_line_32;
+        w->pixel_to_rgb = pixel_a665_to_rgb;
+        break;
+    case 10:
+        w->draw_line = draw_line_32;
+        w->pixel_to_rgb = pixel_a666_to_rgb;
+        break;
+    case 11:
+        w->draw_line = draw_line_32;
+        w->pixel_to_rgb = pixel_888_to_rgb;
+        break;
+    case 12:
+        w->draw_line = draw_line_32;
+        w->pixel_to_rgb = pixel_a887_to_rgb;
+        break;
+    case 13:
+        w->draw_line = draw_line_32;
+        if ((w->wincon & FIMD_WINCON_BLD_PIX) && (w->wincon &
+                FIMD_WINCON_ALPHA_SEL)) {
+            w->pixel_to_rgb = pixel_8888_to_rgb;
+        } else {
+            w->pixel_to_rgb = pixel_a888_to_rgb;
+        }
+        break;
+    case 14:
+        w->draw_line = draw_line_16;
+        if ((w->wincon & FIMD_WINCON_BLD_PIX) && (w->wincon &
+                FIMD_WINCON_ALPHA_SEL)) {
+            w->pixel_to_rgb = pixel_4444_to_rgb;
+        } else {
+            w->pixel_to_rgb = pixel_a444_to_rgb;
+        }
+        break;
+    case 15:
+        w->draw_line = draw_line_16;
+        w->pixel_to_rgb = pixel_555_to_rgb;
+        break;
+    }
+}
+
+#if EXYNOS4210_FIMD_MODE_TRACE > 0
+static const char *exynos4210_fimd_get_bppmode(int mode_code)
+{
+    switch (mode_code) {
+    case 0:
+        return "1 bpp";
+    case 1:
+        return "2 bpp";
+    case 2:
+        return "4 bpp";
+    case 3:
+        return "8 bpp (palettized)";
+    case 4:
+        return "8 bpp (non-palettized, A: 1-R:2-G:3-B:2)";
+    case 5:
+        return "16 bpp (non-palettized, R:5-G:6-B:5)";
+    case 6:
+        return "16 bpp (non-palettized, A:1-R:5-G:5-B:5)";
+    case 7:
+        return "16 bpp (non-palettized, I :1-R:5-G:5-B:5)";
+    case 8:
+        return "Unpacked 18 bpp (non-palettized, R:6-G:6-B:6)";
+    case 9:
+        return "Unpacked 18bpp (non-palettized,A:1-R:6-G:6-B:5)";
+    case 10:
+        return "Unpacked 19bpp (non-palettized,A:1-R:6-G:6-B:6)";
+    case 11:
+        return "Unpacked 24 bpp (non-palettized R:8-G:8-B:8)";
+    case 12:
+        return "Unpacked 24 bpp (non-palettized A:1-R:8-G:8-B:7)";
+    case 13:
+        return "Unpacked 25 bpp (non-palettized A:1-R:8-G:8-B:8)";
+    case 14:
+        return "Unpacked 13 bpp (non-palettized A:1-R:4-G:4-B:4)";
+    case 15:
+        return "Unpacked 15 bpp (non-palettized R:5-G:5-B:5)";
+    default:
+        return "Non-existing bpp mode";
+    }
+}
+
+static inline void exynos4210_fimd_trace_bppmode(Exynos4210fimdState *s,
+                int win_num, uint32_t val)
+{
+    Exynos4210fimdWindow *w = &s->window[win_num];
+
+    if (w->winmap & FIMD_WINMAP_EN) {
+        printf("QEMU FIMD: Window %d is mapped with MAPCOLOR=0x%x\n",
+                win_num, w->winmap & 0xFFFFFF);
+        return;
+    }
+
+    if ((val != 0xFFFFFFFF) && ((w->wincon >> 2) & 0xF) == ((val >> 2) & 0xF)) {
+        return;
+    }
+    printf("QEMU FIMD: Window %d BPP mode set to %s\n", win_num,
+        exynos4210_fimd_get_bppmode((val >> 2) & 0xF));
+}
+#else
+static inline void exynos4210_fimd_trace_bppmode(Exynos4210fimdState *s,
+        int win_num, uint32_t val)
+{
+
+}
+#endif
+
+static inline int fimd_get_buffer_id(Exynos4210fimdWindow *w)
+{
+    switch (w->wincon & FIMD_WINCON_BUFSTATUS) {
+    case FIMD_WINCON_BUF0_STAT:
+        return 0;
+    case FIMD_WINCON_BUF1_STAT:
+        return 1;
+    case FIMD_WINCON_BUF2_STAT:
+        return 2;
+    default:
+        DPRINT_ERROR("Non-existent buffer index\n");
+        return 0;
+    }
+}
+
+/* Updates specified window's MemorySection based on values of WINCON,
+ * VIDOSDA, VIDOSDB, VIDWADDx and SHADOWCON registers */
+static void fimd_update_memory_section(Exynos4210fimdState *s, unsigned win)
+{
+    Exynos4210fimdWindow *w = &s->window[win];
+    target_phys_addr_t fb_start_addr, fb_mapped_len;
+
+    if (!s->enabled || !(w->wincon & FIMD_WINCON_ENWIN) ||
+            FIMD_WINDOW_PROTECTED(s->shadowcon, win)) {
+        return;
+    }
+
+    if (w->host_fb_addr) {
+        cpu_physical_memory_unmap(w->host_fb_addr, w->fb_len, 0, 0);
+        w->host_fb_addr = NULL;
+        w->fb_len = 0;
+    }
+
+    fb_start_addr = w->buf_start[fimd_get_buffer_id(w)];
+    /* Total number of bytes of virtual screen used by current window */
+    w->fb_len = fb_mapped_len = (w->virtpage_width + w->virtpage_offsize) *
+            (w->rightbot_y - w->lefttop_y + 1);
+    w->mem_section = memory_region_find(sysbus_address_space(&s->busdev),
+            fb_start_addr, w->fb_len);
+    assert(w->mem_section.mr);
+    assert(w->mem_section.offset_within_address_space == fb_start_addr);
+    DPRINT_TRACE("Window %u framebuffer changed: address=0x%08x, len=0x%x\n",
+            win, fb_start_addr, w->fb_len);
+
+    if (w->mem_section.size != w->fb_len ||
+            !memory_region_is_ram(w->mem_section.mr)) {
+        DPRINT_ERROR("Failed to find window %u framebuffer region\n", win);
+        goto error_return;
+    }
+
+    w->host_fb_addr = cpu_physical_memory_map(fb_start_addr, &fb_mapped_len, 0);
+    if (!w->host_fb_addr) {
+        DPRINT_ERROR("Failed to map window %u framebuffer\n", win);
+        goto error_return;
+    }
+
+    if (fb_mapped_len != w->fb_len) {
+        DPRINT_ERROR("Window %u mapped framebuffer length is less then "
+                "expected\n", win);
+        cpu_physical_memory_unmap(w->host_fb_addr, fb_mapped_len, 0, 0);
+        goto error_return;
+    }
+    return;
+
+error_return:
+    w->mem_section.mr = NULL;
+    w->mem_section.size = 0;
+    w->host_fb_addr = NULL;
+    w->fb_len = 0;
+}
+
+static void exynos4210_fimd_enable(Exynos4210fimdState *s, bool enabled)
+{
+    if (enabled && !s->enabled) {
+        unsigned w;
+        s->enabled = true;
+        for (w = 0; w < NUM_OF_WINDOWS; w++) {
+            fimd_update_memory_section(s, w);
+        }
+    }
+    s->enabled = enabled;
+    DPRINT_TRACE("display controller %s\n", enabled ? "enabled" : "disabled");
+}
+
+static inline uint32_t unpack_upper_4(uint32_t x)
+{
+    return ((x & 0xF00) << 12) | ((x & 0xF0) << 8) | ((x & 0xF) << 4);
+}
+
+static inline uint32_t pack_upper_4(uint32_t x)
+{
+    return (((x & 0xF00000) >> 12) | ((x & 0xF000) >> 8) |
+            ((x & 0xF0) >> 4)) & 0xFFF;
+}
+
+static void exynos4210_fimd_update_irq(Exynos4210fimdState *s)
+{
+    if (!(s->vidintcon[0] & FIMD_VIDINT_INTEN)) {
+        qemu_irq_lower(s->irq[0]);
+        qemu_irq_lower(s->irq[1]);
+        qemu_irq_lower(s->irq[2]);
+        return;
+    }
+    if ((s->vidintcon[0] & FIMD_VIDINT_INTFIFOEN) &&
+            (s->vidintcon[1] & FIMD_VIDINT_INTFIFOPEND)) {
+        qemu_irq_raise(s->irq[0]);
+    } else {
+        qemu_irq_lower(s->irq[0]);
+    }
+    if ((s->vidintcon[0] & FIMD_VIDINT_INTFRMEN) &&
+            (s->vidintcon[1] & FIMD_VIDINT_INTFRMPEND)) {
+        qemu_irq_raise(s->irq[1]);
+    } else {
+        qemu_irq_lower(s->irq[1]);
+    }
+    if ((s->vidintcon[0] & FIMD_VIDINT_I80IFDONE) &&
+            (s->vidintcon[1] & FIMD_VIDINT_INTI80PEND)) {
+        qemu_irq_raise(s->irq[2]);
+    } else {
+        qemu_irq_lower(s->irq[2]);
+    }
+}
+
+static void exynos4210_fimd_invalidate(void *opaque)
+{
+    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+    s->invalidate = true;
+}
+
+static void exynos4210_update_resolution(Exynos4210fimdState *s)
+{
+    /* LCD resolution is stored in VIDEO TIME CONTROL REGISTER 2 */
+    uint32_t width = ((s->vidtcon[2] >> FIMD_VIDTCON2_HOR_SHIFT) &
+            FIMD_VIDTCON2_SIZE_MASK) + 1;
+    uint32_t height = ((s->vidtcon[2] >> FIMD_VIDTCON2_VER_SHIFT) &
+            FIMD_VIDTCON2_SIZE_MASK) + 1;
+
+    if (s->ifb == NULL || ds_get_width(s->console) != width ||
+            ds_get_height(s->console) != height) {
+        DPRINT_L1("Resolution changed from %ux%u to %ux%u\n",
+           ds_get_width(s->console), ds_get_height(s->console), width, height);
+        qemu_console_resize(s->console, width, height);
+        s->ifb = g_realloc(s->ifb, width * height * RGBA_SIZE + 1);
+        memset(s->ifb, 0, width * height * RGBA_SIZE + 1);
+        exynos4210_fimd_invalidate(s);
+    }
+}
+
+static void exynos4210_fimd_update(void *opaque)
+{
+    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+    Exynos4210fimdWindow *w;
+    int i, line;
+    target_phys_addr_t fb_line_addr, inc_size;
+    int scrn_height;
+    int first_line = -1, last_line = -1, scrn_width;
+    bool blend = false;
+    uint8_t *host_fb_addr;
+    bool is_dirty = false;
+    const int global_width = (s->vidtcon[2] & FIMD_VIDTCON2_SIZE_MASK) + 1;
+    const int global_height = ((s->vidtcon[2] >> FIMD_VIDTCON2_VER_SHIFT) &
+            FIMD_VIDTCON2_SIZE_MASK) + 1;
+
+    if (!s || !s->console || !ds_get_bits_per_pixel(s->console) ||
+            !s->enabled) {
+        return;
+    }
+    exynos4210_update_resolution(s);
+
+    for (i = 0; i < NUM_OF_WINDOWS; i++) {
+        w = &s->window[i];
+        if ((w->wincon & FIMD_WINCON_ENWIN) && w->host_fb_addr) {
+            scrn_height = w->rightbot_y - w->lefttop_y + 1;
+            scrn_width = w->virtpage_width;
+            /* Total width of virtual screen page in bytes */
+            inc_size = scrn_width + w->virtpage_offsize;
+            memory_region_sync_dirty_bitmap(w->mem_section.mr);
+            host_fb_addr = w->host_fb_addr;
+            fb_line_addr = w->mem_section.offset_within_region;
+
+            for (line = 0; line < scrn_height; line++) {
+                is_dirty = memory_region_get_dirty(w->mem_section.mr,
+                            fb_line_addr, scrn_width, DIRTY_MEMORY_VGA);
+
+                if (s->invalidate || is_dirty) {
+                    if (first_line == -1) {
+                        first_line = line;
+                    }
+                    last_line = line;
+                    w->draw_line(w, host_fb_addr, s->ifb +
+                        w->lefttop_x * RGBA_SIZE + (w->lefttop_y + line) *
+                        global_width * RGBA_SIZE, blend);
+                }
+                host_fb_addr += inc_size;
+                fb_line_addr += inc_size;
+                is_dirty = false;
+            }
+            memory_region_reset_dirty(w->mem_section.mr,
+                w->mem_section.offset_within_region,
+                w->fb_len, DIRTY_MEMORY_VGA);
+            blend = true;
+        }
+    }
+
+    /* Copy resulting image to QEMU_CONSOLE. */
+    if (first_line >= 0) {
+        uint8_t *d;
+        int bpp;
+
+        bpp = ds_get_bits_per_pixel(s->console);
+        fimd_update_putpix_qemu(bpp);
+        bpp = (bpp + 1) >> 3;
+        d = ds_get_data(s->console);
+        for (line = first_line; line <= last_line; line++) {
+            fimd_copy_line_toqemu(global_width, s->ifb + global_width * line *
+                    RGBA_SIZE, d + global_width * line * bpp);
+        }
+        dpy_update(s->console, 0, 0, global_width, global_height);
+    }
+    s->invalidate = false;
+    s->vidintcon[1] |= FIMD_VIDINT_INTFRMPEND;
+    if ((s->vidcon[0] & FIMD_VIDCON0_ENVID_F) == 0) {
+        exynos4210_fimd_enable(s, false);
+    }
+    exynos4210_fimd_update_irq(s);
+}
+
+static void exynos4210_fimd_reset(DeviceState *d)
+{
+    Exynos4210fimdState *s = DO_UPCAST(Exynos4210fimdState, busdev.qdev, d);
+    unsigned w;
+
+    DPRINT_TRACE("Display controller reset\n");
+    /* Set all display controller registers to 0 */
+    memset(&s->vidcon, 0, (uint8_t *)&s->window - (uint8_t *)&s->vidcon);
+    for (w = 0; w < NUM_OF_WINDOWS; w++) {
+        memset(&s->window[w], 0, sizeof(Exynos4210fimdWindow));
+        s->window[w].blendeq = 0xC2;
+        exynos4210_fimd_update_win_bppmode(s, w);
+        exynos4210_fimd_trace_bppmode(s, w, 0xFFFFFFFF);
+        fimd_update_get_alpha(s, w);
+    }
+
+    if (s->ifb != NULL) {
+        g_free(s->ifb);
+    }
+    s->ifb = NULL;
+
+    exynos4210_fimd_invalidate(s);
+    exynos4210_fimd_enable(s, false);
+    /* Some registers have non-zero initial values */
+    s->winchmap = 0x7D517D51;
+    s->colorgaincon = 0x10040100;
+    s->huecoef_cr[0] = s->huecoef_cr[3] = 0x01000100;
+    s->huecoef_cb[0] = s->huecoef_cb[3] = 0x01000100;
+    s->hueoffset = 0x01800080;
+}
+
+static void exynos4210_fimd_write(void *opaque, target_phys_addr_t offset,
+                              uint64_t val, unsigned size)
+{
+    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+    unsigned w, i;
+    uint32_t old_value;
+
+    DPRINT_L2("write offset 0x%08x, value=%llu(0x%08llx)\n", offset,
+            (long long unsigned int)val, (long long unsigned int)val);
+
+    switch (offset) {
+    case FIMD_VIDCON0:
+        if ((val & FIMD_VIDCON0_ENVID_MASK) == FIMD_VIDCON0_ENVID_MASK) {
+            exynos4210_fimd_enable(s, true);
+        } else {
+            if ((val & FIMD_VIDCON0_ENVID) == 0) {
+                exynos4210_fimd_enable(s, false);
+            }
+        }
+        s->vidcon[0] = val;
+        break;
+    case FIMD_VIDCON1:
+        /* Leave read-only bits as is */
+        val = (val & (~FIMD_VIDCON1_ROMASK)) |
+                (s->vidcon[1] & FIMD_VIDCON1_ROMASK);
+        s->vidcon[1] = val;
+        break;
+    case FIMD_VIDCON2 ... FIMD_VIDCON3:
+        s->vidcon[(offset) >> 2] = val;
+        break;
+    case FIMD_VIDTCON_START ... FIMD_VIDTCON_END:
+        s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2] = val;
+        break;
+    case FIMD_WINCON_START ... FIMD_WINCON_END:
+        w = (offset - FIMD_WINCON_START) >> 2;
+        /* Window's current buffer ID */
+        i = fimd_get_buffer_id(&s->window[w]);
+        old_value = s->window[w].wincon;
+        val = (val & ~FIMD_WINCON_ROMASK) |
+                (s->window[w].wincon & FIMD_WINCON_ROMASK);
+        if (w == 0) {
+            /* Window 0 wincon ALPHA_MUL bit must always be 0 */
+            val &= ~FIMD_WINCON_ALPHA_MUL;
+        }
+        exynos4210_fimd_trace_bppmode(s, w, val);
+        switch (val & FIMD_WINCON_BUFSELECT) {
+        case FIMD_WINCON_BUF0_SEL:
+            val &= ~FIMD_WINCON_BUFSTATUS;
+            break;
+        case FIMD_WINCON_BUF1_SEL:
+            val = (val & ~FIMD_WINCON_BUFSTAT_H) | FIMD_WINCON_BUFSTAT_L;
+            break;
+        case FIMD_WINCON_BUF2_SEL:
+            if (val & FIMD_WINCON_BUFMODE) {
+                val = (val & ~FIMD_WINCON_BUFSTAT_L) | FIMD_WINCON_BUFSTAT_H;
+            }
+            break;
+        default:
+            break;
+        }
+        s->window[w].wincon = val;
+        exynos4210_fimd_update_win_bppmode(s, w);
+        fimd_update_get_alpha(s, w);
+        if ((i != fimd_get_buffer_id(&s->window[w])) ||
+                (!(old_value & FIMD_WINCON_ENWIN) && (s->window[w].wincon &
+                        FIMD_WINCON_ENWIN))) {
+            fimd_update_memory_section(s, w);
+        }
+        break;
+    case FIMD_SHADOWCON:
+        old_value = s->shadowcon;
+        s->shadowcon = val;
+        for (w = 0; w < NUM_OF_WINDOWS; w++) {
+            if (FIMD_WINDOW_PROTECTED(old_value, w) &&
+                    !FIMD_WINDOW_PROTECTED(s->shadowcon, w)) {
+                fimd_update_memory_section(s, w);
+            }
+        }
+        break;
+    case FIMD_WINCHMAP:
+        s->winchmap = val;
+        break;
+    case FIMD_VIDOSD_START ... FIMD_VIDOSD_END:
+        w = (offset - FIMD_VIDOSD_START) >> 4;
+        i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;
+        switch (i) {
+        case 0:
+            old_value = s->window[w].lefttop_y;
+            s->window[w].lefttop_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &
+                                      FIMD_VIDOSD_COORD_MASK;
+            s->window[w].lefttop_y = (val >> FIMD_VIDOSD_VER_SHIFT) &
+                                      FIMD_VIDOSD_COORD_MASK;
+            if (s->window[w].lefttop_y != old_value) {
+                fimd_update_memory_section(s, w);
+            }
+            break;
+        case 1:
+            old_value = s->window[w].rightbot_y;
+            s->window[w].rightbot_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &
+                                       FIMD_VIDOSD_COORD_MASK;
+            s->window[w].rightbot_y = (val >> FIMD_VIDOSD_VER_SHIFT) &
+                                       FIMD_VIDOSD_COORD_MASK;
+            if (s->window[w].rightbot_y != old_value) {
+                fimd_update_memory_section(s, w);
+            }
+            break;
+        case 2:
+            if (w == 0) {
+                s->window[w].osdsize = val;
+            } else {
+                s->window[w].alpha_val[0] =
+                    unpack_upper_4((val & FIMD_VIDOSD_ALPHA_AEN0) >>
+                    FIMD_VIDOSD_AEN0_SHIFT) |
+                    (s->window[w].alpha_val[0] & FIMD_VIDALPHA_ALPHA_LOWER);
+                s->window[w].alpha_val[1] =
+                    unpack_upper_4(val & FIMD_VIDOSD_ALPHA_AEN1) |
+                    (s->window[w].alpha_val[1] & FIMD_VIDALPHA_ALPHA_LOWER);
+            }
+            break;
+        case 3:
+            if (w != 1 && w != 2) {
+                DPRINT_ERROR("Bad write offset 0x%08x\n", offset);
+                return;
+            }
+            s->window[w].osdsize = val;
+            break;
+        }
+        break;
+    case FIMD_VIDWADD0_START ... FIMD_VIDWADD0_END:
+        w = (offset - FIMD_VIDWADD0_START) >> 3;
+        i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;
+        if (i == fimd_get_buffer_id(&s->window[w]) &&
+                s->window[w].buf_start[i] != val) {
+            s->window[w].buf_start[i] = val;
+            fimd_update_memory_section(s, w);
+            break;
+        }
+        s->window[w].buf_start[i] = val;
+        break;
+    case FIMD_VIDWADD1_START ... FIMD_VIDWADD1_END:
+        w = (offset - FIMD_VIDWADD1_START) >> 3;
+        i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;
+        s->window[w].buf_end[i] = val;
+        break;
+    case FIMD_VIDWADD2_START ... FIMD_VIDWADD2_END:
+        w = (offset - FIMD_VIDWADD2_START) >> 2;
+        if (((val & FIMD_VIDWADD2_PAGEWIDTH) != s->window[w].virtpage_width) ||
+            (((val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) & FIMD_VIDWADD2_OFFSIZE) !=
+                        s->window[w].virtpage_offsize)) {
+            s->window[w].virtpage_width = val & FIMD_VIDWADD2_PAGEWIDTH;
+            s->window[w].virtpage_offsize =
+                (val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) & FIMD_VIDWADD2_OFFSIZE;
+            fimd_update_memory_section(s, w);
+        }
+        break;
+    case FIMD_VIDINTCON0:
+        s->vidintcon[0] = val;
+        break;
+    case FIMD_VIDINTCON1:
+        s->vidintcon[1] &= ~(val & 7);
+        exynos4210_fimd_update_irq(s);
+        break;
+    case FIMD_WKEYCON_START ... FIMD_WKEYCON_END:
+        w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;
+        i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;
+        s->window[w].keycon[i] = val;
+        break;
+    case FIMD_WKEYALPHA_START ... FIMD_WKEYALPHA_END:
+        w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;
+        s->window[w].keyalpha = val;
+        break;
+    case FIMD_DITHMODE:
+        s->dithmode = val;
+        break;
+    case FIMD_WINMAP_START ... FIMD_WINMAP_END:
+        w = (offset - FIMD_WINMAP_START) >> 2;
+        old_value = s->window[w].winmap;
+        s->window[w].winmap = val;
+        if ((val & FIMD_WINMAP_EN) ^ (old_value & FIMD_WINMAP_EN)) {
+            exynos4210_fimd_invalidate(s);
+            exynos4210_fimd_update_win_bppmode(s, w);
+            exynos4210_fimd_trace_bppmode(s, w, 0xFFFFFFFF);
+            exynos4210_fimd_update(s);
+        }
+        break;
+    case FIMD_WPALCON_HIGH ... FIMD_WPALCON_LOW:
+        i = (offset - FIMD_WPALCON_HIGH) >> 2;
+        s->wpalcon[i] = val;
+        if (s->wpalcon[1] & FIMD_WPALCON_UPDATEEN) {
+            for (w = 0; w < NUM_OF_WINDOWS; w++) {
+                exynos4210_fimd_update_win_bppmode(s, w);
+                fimd_update_get_alpha(s, w);
+            }
+        }
+        break;
+    case FIMD_TRIGCON:
+        val = (val & ~FIMD_TRIGCON_ROMASK) | (s->trigcon & FIMD_TRIGCON_ROMASK);
+        s->trigcon = val;
+        break;
+    case FIMD_I80IFCON_START ... FIMD_I80IFCON_END:
+        s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2] = val;
+        break;
+    case FIMD_COLORGAINCON:
+        s->colorgaincon = val;
+        break;
+    case FIMD_LDI_CMDCON0 ... FIMD_LDI_CMDCON1:
+        s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2] = val;
+        break;
+    case FIMD_SIFCCON0 ... FIMD_SIFCCON2:
+        i = (offset - FIMD_SIFCCON0) >> 2;
+        if (i != 2) {
+            s->sifccon[i] = val;
+        }
+        break;
+    case FIMD_HUECOEFCR_START ... FIMD_HUECOEFCR_END:
+        i = (offset - FIMD_HUECOEFCR_START) >> 2;
+        s->huecoef_cr[i] = val;
+        break;
+    case FIMD_HUECOEFCB_START ... FIMD_HUECOEFCB_END:
+        i = (offset - FIMD_HUECOEFCB_START) >> 2;
+        s->huecoef_cb[i] = val;
+        break;
+    case FIMD_HUEOFFSET:
+        s->hueoffset = val;
+        break;
+    case FIMD_VIDWALPHA_START ... FIMD_VIDWALPHA_END:
+        w = ((offset - FIMD_VIDWALPHA_START) >> 3);
+        i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;
+        if (w == 0) {
+            s->window[w].alpha_val[i] = val;
+        } else {
+            s->window[w].alpha_val[i] = (val & FIMD_VIDALPHA_ALPHA_LOWER) |
+                (s->window[w].alpha_val[i] & FIMD_VIDALPHA_ALPHA_UPPER);
+        }
+        break;
+    case FIMD_BLENDEQ_START ... FIMD_BLENDEQ_END:
+        s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq = val;
+        break;
+    case FIMD_BLENDCON:
+        old_value = s->blendcon;
+        s->blendcon = val;
+        if ((s->blendcon & FIMD_ALPHA_8BIT) != (old_value & FIMD_ALPHA_8BIT)) {
+            for (w = 0; w < NUM_OF_WINDOWS; w++) {
+                fimd_update_get_alpha(s, w);
+            }
+        }
+        break;
+    case FIMD_WRTQOSCON_START ... FIMD_WRTQOSCON_END:
+        s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon = val;
+        break;
+    case FIMD_I80IFCMD_START ... FIMD_I80IFCMD_END:
+        s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2] = val;
+        break;
+    case FIMD_VIDW0ADD0_B2 ... FIMD_VIDW4ADD0_B2:
+        if (offset & 0x0004) {
+            DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+            break;
+        }
+        w = (offset - FIMD_VIDW0ADD0_B2) >> 3;
+        if (fimd_get_buffer_id(&s->window[w]) == 2 &&
+                s->window[w].buf_start[2] != val) {
+            s->window[w].buf_start[2] = val;
+            fimd_update_memory_section(s, w);
+            break;
+        }
+        s->window[w].buf_start[2] = val;
+        break;
+    case FIMD_SHD_ADD0_START ... FIMD_SHD_ADD0_END:
+        if (offset & 0x0004) {
+            DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+            break;
+        }
+        s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start = val;
+        break;
+    case FIMD_SHD_ADD1_START ... FIMD_SHD_ADD1_END:
+        if (offset & 0x0004) {
+            DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+            break;
+        }
+        s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end = val;
+        break;
+    case FIMD_SHD_ADD2_START ... FIMD_SHD_ADD2_END:
+        s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size = val;
+        break;
+    case FIMD_PAL_MEM_START ... FIMD_PAL_MEM_END:
+        w = (offset - FIMD_PAL_MEM_START) >> 10;
+        i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;
+        s->window[w].palette[i] = val;
+        break;
+    case FIMD_PALMEM_AL_START ... FIMD_PALMEM_AL_END:
+        /* Palette memory aliases for windows 0 and 1 */
+        w = (offset - FIMD_PALMEM_AL_START) >> 10;
+        i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;
+        s->window[w].palette[i] = val;
+        break;
+    default:
+        DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+        break;
+    }
+}
+
+static uint64_t exynos4210_fimd_read(void *opaque, target_phys_addr_t offset,
+                                  unsigned size)
+{
+    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+    int w, i;
+    uint32_t ret = 0;
+
+    DPRINT_L2("read offset 0x%08x\n", offset);
+
+    switch (offset) {
+    case FIMD_VIDCON0 ... FIMD_VIDCON3:
+        return s->vidcon[(offset - FIMD_VIDCON0) >> 2];
+    case FIMD_VIDTCON_START ... FIMD_VIDTCON_END:
+        return s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2];
+    case FIMD_WINCON_START ... FIMD_WINCON_END:
+        return s->window[(offset - FIMD_WINCON_START) >> 2].wincon;
+    case FIMD_SHADOWCON:
+        return s->shadowcon;
+    case FIMD_WINCHMAP:
+        return s->winchmap;
+    case FIMD_VIDOSD_START ... FIMD_VIDOSD_END:
+        w = (offset - FIMD_VIDOSD_START) >> 4;
+        i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;
+        switch (i) {
+        case 0:
+            ret = ((s->window[w].lefttop_x & FIMD_VIDOSD_COORD_MASK) <<
+            FIMD_VIDOSD_HOR_SHIFT) |
+            (s->window[w].lefttop_y & FIMD_VIDOSD_COORD_MASK);
+            break;
+        case 1:
+            ret = ((s->window[w].rightbot_x & FIMD_VIDOSD_COORD_MASK) <<
+                FIMD_VIDOSD_HOR_SHIFT) |
+                (s->window[w].rightbot_y & FIMD_VIDOSD_COORD_MASK);
+            break;
+        case 2:
+            if (w == 0) {
+                ret = s->window[w].osdsize;
+            } else {
+                ret = (pack_upper_4(s->window[w].alpha_val[0]) <<
+                    FIMD_VIDOSD_AEN0_SHIFT) |
+                    pack_upper_4(s->window[w].alpha_val[1]);
+            }
+            break;
+        case 3:
+            if (w != 1 && w != 2) {
+                DPRINT_ERROR("bad read offset 0x%08x\n", offset);
+                return 0xBAADBAAD;
+            }
+            ret = s->window[w].osdsize;
+            break;
+        }
+        return ret;
+    case FIMD_VIDWADD0_START ... FIMD_VIDWADD0_END:
+        w = (offset - FIMD_VIDWADD0_START) >> 3;
+        i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;
+        return s->window[w].buf_start[i];
+    case FIMD_VIDWADD1_START ... FIMD_VIDWADD1_END:
+        w = (offset - FIMD_VIDWADD1_START) >> 3;
+        i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;
+        return s->window[w].buf_end[i];
+    case FIMD_VIDWADD2_START ... FIMD_VIDWADD2_END:
+        w = (offset - FIMD_VIDWADD2_START) >> 2;
+        return s->window[w].virtpage_width | (s->window[w].virtpage_offsize <<
+            FIMD_VIDWADD2_OFFSIZE_SHIFT);
+    case FIMD_VIDINTCON0 ... FIMD_VIDINTCON1:
+        return s->vidintcon[(offset - FIMD_VIDINTCON0) >> 2];
+    case FIMD_WKEYCON_START ... FIMD_WKEYCON_END:
+        w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;
+        i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;
+        return s->window[w].keycon[i];
+    case FIMD_WKEYALPHA_START ... FIMD_WKEYALPHA_END:
+        w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;
+        return s->window[w].keyalpha;
+    case FIMD_DITHMODE:
+        return s->dithmode;
+    case FIMD_WINMAP_START ... FIMD_WINMAP_END:
+        return s->window[(offset - FIMD_WINMAP_START) >> 2].winmap;
+    case FIMD_WPALCON_HIGH ... FIMD_WPALCON_LOW:
+        return s->wpalcon[(offset - FIMD_WPALCON_HIGH) >> 2];
+    case FIMD_TRIGCON:
+        return s->trigcon;
+    case FIMD_I80IFCON_START ... FIMD_I80IFCON_END:
+        return s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2];
+    case FIMD_COLORGAINCON:
+        return s->colorgaincon;
+    case FIMD_LDI_CMDCON0 ... FIMD_LDI_CMDCON1:
+        return s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2];
+    case FIMD_SIFCCON0 ... FIMD_SIFCCON2:
+        i = (offset - FIMD_SIFCCON0) >> 2;
+        return s->sifccon[i];
+    case FIMD_HUECOEFCR_START ... FIMD_HUECOEFCR_END:
+        i = (offset - FIMD_HUECOEFCR_START) >> 2;
+        return s->huecoef_cr[i];
+    case FIMD_HUECOEFCB_START ... FIMD_HUECOEFCB_END:
+        i = (offset - FIMD_HUECOEFCB_START) >> 2;
+        return s->huecoef_cb[i];
+    case FIMD_HUEOFFSET:
+        return s->hueoffset;
+    case FIMD_VIDWALPHA_START ... FIMD_VIDWALPHA_END:
+        w = ((offset - FIMD_VIDWALPHA_START) >> 3);
+        i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;
+        return s->window[w].alpha_val[i] &
+                (w == 0 ? 0xFFFFFF : FIMD_VIDALPHA_ALPHA_LOWER);
+    case FIMD_BLENDEQ_START ... FIMD_BLENDEQ_END:
+        return s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq;
+    case FIMD_BLENDCON:
+        return s->blendcon;
+    case FIMD_WRTQOSCON_START ... FIMD_WRTQOSCON_END:
+        return s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon;
+    case FIMD_I80IFCMD_START ... FIMD_I80IFCMD_END:
+        return s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2];
+    case FIMD_VIDW0ADD0_B2 ... FIMD_VIDW4ADD0_B2:
+        if (offset & 0x0004) {
+            break;
+        }
+        return s->window[(offset - FIMD_VIDW0ADD0_B2) >> 3].buf_start[2];
+    case FIMD_SHD_ADD0_START ... FIMD_SHD_ADD0_END:
+        if (offset & 0x0004) {
+            break;
+        }
+        return s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start;
+    case FIMD_SHD_ADD1_START ... FIMD_SHD_ADD1_END:
+        if (offset & 0x0004) {
+            break;
+        }
+        return s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end;
+    case FIMD_SHD_ADD2_START ... FIMD_SHD_ADD2_END:
+        return s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size;
+    case FIMD_PAL_MEM_START ... FIMD_PAL_MEM_END:
+        w = (offset - FIMD_PAL_MEM_START) >> 10;
+        i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;
+        return s->window[w].palette[i];
+    case FIMD_PALMEM_AL_START ... FIMD_PALMEM_AL_END:
+        /* Palette aliases for win 0,1 */
+        w = (offset - FIMD_PALMEM_AL_START) >> 10;
+        i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;
+        return s->window[w].palette[i];
+    }
+
+    DPRINT_ERROR("bad read offset 0x%08x\n", offset);
+    return 0xBAADBAAD;
+}
+
+static const MemoryRegionOps exynos4210_fimd_mmio_ops = {
+    .read = exynos4210_fimd_read,
+    .write = exynos4210_fimd_write,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+        .unaligned = false
+    },
+    .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int exynos4210_fimd_load(void *opaque, int version_id)
+{
+    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+    int w;
+
+    if (version_id != 1) {
+        return -EINVAL;
+    }
+
+    for (w = 0; w < NUM_OF_WINDOWS; w++) {
+        exynos4210_fimd_update_win_bppmode(s, w);
+        fimd_update_get_alpha(s, w);
+        fimd_update_memory_section(s, w);
+    }
+
+    /* Redraw the whole screen */
+    exynos4210_update_resolution(s);
+    exynos4210_fimd_invalidate(s);
+    exynos4210_fimd_enable(s, (s->vidcon[0] & FIMD_VIDCON0_ENVID_MASK) ==
+            FIMD_VIDCON0_ENVID_MASK);
+    return 0;
+}
+
+static const VMStateDescription exynos4210_fimd_window_vmstate = {
+    .name = "exynos4210.fimd_window",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields      = (VMStateField[]) {
+        VMSTATE_UINT32(wincon, Exynos4210fimdWindow),
+        VMSTATE_UINT32_ARRAY(buf_start, Exynos4210fimdWindow, 3),
+        VMSTATE_UINT32_ARRAY(buf_end, Exynos4210fimdWindow, 3),
+        VMSTATE_UINT32_ARRAY(keycon, Exynos4210fimdWindow, 2),
+        VMSTATE_UINT32(keyalpha, Exynos4210fimdWindow),
+        VMSTATE_UINT32(winmap, Exynos4210fimdWindow),
+        VMSTATE_UINT32(blendeq, Exynos4210fimdWindow),
+        VMSTATE_UINT32(rtqoscon, Exynos4210fimdWindow),
+        VMSTATE_UINT32_ARRAY(palette, Exynos4210fimdWindow, 256),
+        VMSTATE_UINT32(shadow_buf_start, Exynos4210fimdWindow),
+        VMSTATE_UINT32(shadow_buf_end, Exynos4210fimdWindow),
+        VMSTATE_UINT32(shadow_buf_size, Exynos4210fimdWindow),
+        VMSTATE_UINT16(lefttop_x, Exynos4210fimdWindow),
+        VMSTATE_UINT16(lefttop_y, Exynos4210fimdWindow),
+        VMSTATE_UINT16(rightbot_x, Exynos4210fimdWindow),
+        VMSTATE_UINT16(rightbot_y, Exynos4210fimdWindow),
+        VMSTATE_UINT32(osdsize, Exynos4210fimdWindow),
+        VMSTATE_UINT32_ARRAY(alpha_val, Exynos4210fimdWindow, 2),
+        VMSTATE_UINT16(virtpage_width, Exynos4210fimdWindow),
+        VMSTATE_UINT16(virtpage_offsize, Exynos4210fimdWindow),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static const VMStateDescription exynos4210_fimd_vmstate = {
+    .name = "exynos4210.fimd",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .post_load = exynos4210_fimd_load,
+    .fields      = (VMStateField[]) {
+        VMSTATE_UINT32_ARRAY(vidcon, Exynos4210fimdState, 4),
+        VMSTATE_UINT32_ARRAY(vidtcon, Exynos4210fimdState, 4),
+        VMSTATE_UINT32(shadowcon, Exynos4210fimdState),
+        VMSTATE_UINT32(winchmap, Exynos4210fimdState),
+        VMSTATE_UINT32_ARRAY(vidintcon, Exynos4210fimdState, 2),
+        VMSTATE_UINT32(dithmode, Exynos4210fimdState),
+        VMSTATE_UINT32_ARRAY(wpalcon, Exynos4210fimdState, 2),
+        VMSTATE_UINT32(trigcon, Exynos4210fimdState),
+        VMSTATE_UINT32_ARRAY(i80ifcon, Exynos4210fimdState, 4),
+        VMSTATE_UINT32(colorgaincon, Exynos4210fimdState),
+        VMSTATE_UINT32_ARRAY(ldi_cmdcon, Exynos4210fimdState, 2),
+        VMSTATE_UINT32_ARRAY(sifccon, Exynos4210fimdState, 3),
+        VMSTATE_UINT32_ARRAY(huecoef_cr, Exynos4210fimdState, 4),
+        VMSTATE_UINT32_ARRAY(huecoef_cb, Exynos4210fimdState, 4),
+        VMSTATE_UINT32(hueoffset, Exynos4210fimdState),
+        VMSTATE_UINT32_ARRAY(i80ifcmd, Exynos4210fimdState, 12),
+        VMSTATE_UINT32(blendcon, Exynos4210fimdState),
+        VMSTATE_STRUCT_ARRAY(window, Exynos4210fimdState, 5, 1,
+                exynos4210_fimd_window_vmstate, Exynos4210fimdWindow),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static int exynos4210_fimd_init(SysBusDevice *dev)
+{
+    Exynos4210fimdState *s = FROM_SYSBUS(Exynos4210fimdState, dev);
+
+    s->ifb = NULL;
+
+    sysbus_init_irq(dev, &s->irq[0]);
+    sysbus_init_irq(dev, &s->irq[1]);
+    sysbus_init_irq(dev, &s->irq[2]);
+
+    memory_region_init_io(&s->iomem, &exynos4210_fimd_mmio_ops, s,
+            "exynos4210.fimd", FIMD_REGS_SIZE);
+    sysbus_init_mmio(dev, &s->iomem);
+    s->console = graphic_console_init(exynos4210_fimd_update,
+                                  exynos4210_fimd_invalidate, NULL, NULL, s);
+
+    return 0;
+}
+
+static void exynos4210_fimd_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+    dc->vmsd = &exynos4210_fimd_vmstate;
+    dc->reset = exynos4210_fimd_reset;
+    k->init = exynos4210_fimd_init;
+}
+
+static TypeInfo exynos4210_fimd_info = {
+    .name = "exynos4210.fimd",
+    .parent = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(Exynos4210fimdState),
+    .class_init = exynos4210_fimd_class_init,
+};
+
+static void exynos4210_fimd_register_types(void)
+{
+    type_register_static(&exynos4210_fimd_info);
+}
+
+type_init(exynos4210_fimd_register_types)