dd2a56ab6f
The MacOS toolbox ROM accesses a number of addresses between 0x0 and 0x200 during initialisation and resolution changes. Whilst the function of many of these registers is unknown, it is worth the minimal cost of saving these extra values as part of migration to help future-proof the migration stream for the q800 machine as it starts to stabilise. Note this is a migration break, but since there are upcoming incompatible changes for the q800 machine (and migration does not even succeed without these patches) then this is not an issue. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220305155530.9265-4-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/*
|
|
* QEMU Motorola 680x0 Macintosh Video Card Emulation
|
|
* Copyright (c) 2012-2018 Laurent Vivier
|
|
*
|
|
* some parts from QEMU G364 framebuffer Emulator.
|
|
* Copyright (c) 2007-2011 Herve Poussineau
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef MACFB_H
|
|
#define MACFB_H
|
|
|
|
#include "exec/memory.h"
|
|
#include "hw/irq.h"
|
|
#include "ui/console.h"
|
|
#include "qemu/timer.h"
|
|
#include "qom/object.h"
|
|
|
|
typedef enum {
|
|
MACFB_DISPLAY_APPLE_21_COLOR = 0,
|
|
MACFB_DISPLAY_APPLE_PORTRAIT = 1,
|
|
MACFB_DISPLAY_APPLE_12_RGB = 2,
|
|
MACFB_DISPLAY_APPLE_2PAGE_MONO = 3,
|
|
MACFB_DISPLAY_NTSC_UNDERSCAN = 4,
|
|
MACFB_DISPLAY_NTSC_OVERSCAN = 5,
|
|
MACFB_DISPLAY_APPLE_12_MONO = 6,
|
|
MACFB_DISPLAY_APPLE_13_RGB = 7,
|
|
MACFB_DISPLAY_16_COLOR = 8,
|
|
MACFB_DISPLAY_PAL1_UNDERSCAN = 9,
|
|
MACFB_DISPLAY_PAL1_OVERSCAN = 10,
|
|
MACFB_DISPLAY_PAL2_UNDERSCAN = 11,
|
|
MACFB_DISPLAY_PAL2_OVERSCAN = 12,
|
|
MACFB_DISPLAY_VGA = 13,
|
|
MACFB_DISPLAY_SVGA = 14,
|
|
} MacfbDisplayType;
|
|
|
|
typedef struct MacFbMode {
|
|
uint8_t type;
|
|
uint8_t depth;
|
|
uint32_t mode_ctrl1;
|
|
uint32_t mode_ctrl2;
|
|
uint32_t width;
|
|
uint32_t height;
|
|
uint32_t stride;
|
|
uint32_t offset;
|
|
} MacFbMode;
|
|
|
|
#define MACFB_CTRL_TOPADDR 0x200
|
|
#define MACFB_NUM_REGS (MACFB_CTRL_TOPADDR / sizeof(uint32_t))
|
|
|
|
typedef struct MacfbState {
|
|
MemoryRegion mem_vram;
|
|
MemoryRegion mem_ctrl;
|
|
QemuConsole *con;
|
|
|
|
uint8_t *vram;
|
|
uint32_t vram_bit_mask;
|
|
uint32_t palette_current;
|
|
uint8_t color_palette[256 * 3];
|
|
uint32_t width, height; /* in pixels */
|
|
uint8_t depth;
|
|
uint8_t type;
|
|
|
|
uint32_t regs[MACFB_NUM_REGS];
|
|
MacFbMode *mode;
|
|
|
|
QEMUTimer *vbl_timer;
|
|
qemu_irq irq;
|
|
} MacfbState;
|
|
|
|
#define TYPE_MACFB "sysbus-macfb"
|
|
OBJECT_DECLARE_SIMPLE_TYPE(MacfbSysBusState, MACFB)
|
|
|
|
struct MacfbSysBusState {
|
|
SysBusDevice busdev;
|
|
|
|
MacfbState macfb;
|
|
};
|
|
|
|
#define TYPE_NUBUS_MACFB "nubus-macfb"
|
|
OBJECT_DECLARE_TYPE(MacfbNubusState, MacfbNubusDeviceClass, NUBUS_MACFB)
|
|
|
|
struct MacfbNubusDeviceClass {
|
|
DeviceClass parent_class;
|
|
|
|
DeviceRealize parent_realize;
|
|
DeviceUnrealize parent_unrealize;
|
|
};
|
|
|
|
|
|
struct MacfbNubusState {
|
|
NubusDevice busdev;
|
|
|
|
MacfbState macfb;
|
|
};
|
|
|
|
#endif
|