xref: /openbmc/qemu/include/hw/display/macfb.h (revision b4b9a0e3)
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 "ui/console.h"
19 #include "qemu/timer.h"
20 #include "qom/object.h"
21 
22 typedef enum  {
23     MACFB_DISPLAY_APPLE_21_COLOR = 0,
24     MACFB_DISPLAY_APPLE_PORTRAIT = 1,
25     MACFB_DISPLAY_APPLE_12_RGB = 2,
26     MACFB_DISPLAY_APPLE_2PAGE_MONO = 3,
27     MACFB_DISPLAY_NTSC_UNDERSCAN = 4,
28     MACFB_DISPLAY_NTSC_OVERSCAN = 5,
29     MACFB_DISPLAY_APPLE_12_MONO = 6,
30     MACFB_DISPLAY_APPLE_13_RGB = 7,
31     MACFB_DISPLAY_16_COLOR = 8,
32     MACFB_DISPLAY_PAL1_UNDERSCAN = 9,
33     MACFB_DISPLAY_PAL1_OVERSCAN = 10,
34     MACFB_DISPLAY_PAL2_UNDERSCAN = 11,
35     MACFB_DISPLAY_PAL2_OVERSCAN = 12,
36     MACFB_DISPLAY_VGA = 13,
37     MACFB_DISPLAY_SVGA = 14,
38 } MacfbDisplayType;
39 
40 typedef struct MacFbMode {
41     uint8_t type;
42     uint8_t depth;
43     uint32_t mode_ctrl1;
44     uint32_t mode_ctrl2;
45     uint32_t width;
46     uint32_t height;
47     uint32_t stride;
48     uint32_t offset;
49 } MacFbMode;
50 
51 #define MACFB_NUM_REGS      8
52 
53 typedef struct MacfbState {
54     MemoryRegion mem_vram;
55     MemoryRegion mem_ctrl;
56     QemuConsole *con;
57 
58     uint8_t *vram;
59     uint32_t vram_bit_mask;
60     uint32_t palette_current;
61     uint8_t color_palette[256 * 3];
62     uint32_t width, height; /* in pixels */
63     uint8_t depth;
64     uint8_t type;
65 
66     uint32_t regs[MACFB_NUM_REGS];
67     MacFbMode *mode;
68 
69     uint32_t irq_state;
70     uint32_t irq_mask;
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
102