| 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 "system/memory.h" |
| 17 | #include "hw/core/irq.h" |
| 18 | #include "hw/nubus/nubus.h" |
| 19 | #include "hw/core/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 | const 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 |