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hw/m68k: add Nubus macfb video card

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This patch adds support for a graphic framebuffer device.
This device can be added as a sysbus device or as a NuBus device.

It is accessed as a framebuffer but the color palette can be set.

Co-developed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20191026164546.30020-9-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2019-10-26 18:45:43 +02:00
parent fa2ba3b80e
commit 8ac919a065
9 changed files with 557 additions and 2 deletions
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64
include/hw/display/macfb.h Normal file
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/*
* 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 "qemu/osdep.h"
#include "exec/memory.h"
#include "ui/console.h"
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;
} MacfbState;
#define TYPE_MACFB "sysbus-macfb"
#define MACFB(obj) \
OBJECT_CHECK(MacfbSysBusState, (obj), TYPE_MACFB)
typedef struct {
SysBusDevice busdev;
MacfbState macfb;
} MacfbSysBusState;
#define MACFB_NUBUS_DEVICE_CLASS(class) \
OBJECT_CLASS_CHECK(MacfbNubusDeviceClass, (class), TYPE_NUBUS_MACFB)
#define MACFB_NUBUS_GET_CLASS(obj) \
OBJECT_GET_CLASS(MacfbNubusDeviceClass, (obj), TYPE_NUBUS_MACFB)
typedef struct MacfbNubusDeviceClass {
DeviceClass parent_class;
DeviceRealize parent_realize;
} MacfbNubusDeviceClass;
#define TYPE_NUBUS_MACFB "nubus-macfb"
#define NUBUS_MACFB(obj) \
OBJECT_CHECK(MacfbNubusState, (obj), TYPE_NUBUS_MACFB)
typedef struct {
NubusDevice busdev;
MacfbState macfb;
} MacfbNubusState;
#endif