include/hw/display/macfb.h

   1 /*
   2  * QEMU Motorola 680x0 Macintosh Video Card Emulation
   3  *                 Copyright (c) 2012-2018 Laurent Vivier
   4  *
   5  * some parts from QEMU G364 framebuffer Emulator.
   6  *                 Copyright (c) 2007-2011 Herve Poussineau
   7  *
   8  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   9  * See the COPYING file in the top-level directory.
  10  *
  11  */
  12
  13 #ifndef MACFB_H
  14 #define MACFB_H
  15
  16 #include "exec/memory.h"
  17 #include "hw/irq.h"
  18 #include "hw/nubus/nubus.h"
  19 #include "hw/sysbus.h"
  20 #include "ui/console.h"
  21 #include "qemu/timer.h"
  22
  23 typedef enum  {
  24     MACFB_DISPLAY_APPLE_21_COLOR = 0,
  25     MACFB_DISPLAY_APPLE_PORTRAIT = 1,
  26     MACFB_DISPLAY_APPLE_12_RGB = 2,
  27     MACFB_DISPLAY_APPLE_2PAGE_MONO = 3,
  28     MACFB_DISPLAY_NTSC_UNDERSCAN = 4,
  29     MACFB_DISPLAY_NTSC_OVERSCAN = 5,
  30     MACFB_DISPLAY_APPLE_12_MONO = 6,
  31     MACFB_DISPLAY_APPLE_13_RGB = 7,
  32     MACFB_DISPLAY_16_COLOR = 8,
  33     MACFB_DISPLAY_PAL1_UNDERSCAN = 9,
  34     MACFB_DISPLAY_PAL1_OVERSCAN = 10,
  35     MACFB_DISPLAY_PAL2_UNDERSCAN = 11,
  36     MACFB_DISPLAY_PAL2_OVERSCAN = 12,
  37     MACFB_DISPLAY_VGA = 13,
  38     MACFB_DISPLAY_SVGA = 14,
  39 } MacfbDisplayType;
  40
  41 typedef struct MacFbMode {
  42     uint8_t type;
  43     uint8_t depth;
  44     uint32_t mode_ctrl1;
  45     uint32_t mode_ctrl2;
  46     uint32_t width;
  47     uint32_t height;
  48     uint32_t stride;
  49     uint32_t offset;
  50 } MacFbMode;
  51
  52 #define MACFB_CTRL_TOPADDR  0x200
  53 #define MACFB_NUM_REGS      (MACFB_CTRL_TOPADDR / sizeof(uint32_t))
  54
  55 typedef struct MacfbState {
  56     MemoryRegion mem_vram;
  57     MemoryRegion mem_ctrl;
  58     QemuConsole *con;
  59
  60     uint8_t *vram;
  61     uint32_t vram_bit_mask;
  62     uint32_t palette_current;
  63     uint8_t color_palette[256 * 3];
  64     uint32_t width, height; /* in pixels */
  65     uint8_t depth;
  66     uint8_t type;
  67
  68     uint32_t regs[MACFB_NUM_REGS];
  69     MacFbMode *mode;
  70
  71     QEMUTimer *vbl_timer;
  72     qemu_irq irq;
  73 } MacfbState;
  74
  75 #define TYPE_MACFB "sysbus-macfb"
  76 OBJECT_DECLARE_SIMPLE_TYPE(MacfbSysBusState, MACFB)
  77
  78 struct MacfbSysBusState {
  79     SysBusDevice busdev;
  80
  81     MacfbState macfb;
  82 };
  83
  84 #define TYPE_NUBUS_MACFB "nubus-macfb"
  85 OBJECT_DECLARE_TYPE(MacfbNubusState, MacfbNubusDeviceClass, NUBUS_MACFB)
  86
  87 struct MacfbNubusDeviceClass {
  88     DeviceClass parent_class;
  89
  90     DeviceRealize parent_realize;
  91     DeviceUnrealize parent_unrealize;
  92 };
  93
  94
  95 struct MacfbNubusState {
  96     NubusDevice busdev;
  97
  98     MacfbState macfb;
  99 };
 100
 101 #endif