d470fd6acd
As the comment in qapi/error, dereferencing @errp requires ERRP_GUARD(): * = Why, when and how to use ERRP_GUARD() = * * Without ERRP_GUARD(), use of the @errp parameter is restricted: * - It must not be dereferenced, because it may be null. ... * ERRP_GUARD() lifts these restrictions. * * To use ERRP_GUARD(), add it right at the beginning of the function. * @errp can then be used without worrying about the argument being * NULL or &error_fatal. * * Using it when it's not needed is safe, but please avoid cluttering * the source with useless code. But in macfb_nubus_realize(), @errp is dereferenced without ERRP_GUARD(): ndc->parent_realize(dev, errp); if (*errp) { return; } Here we check *errp, because the ndc->parent_realize(), as a DeviceClass.realize() callback, returns void. And since macfb_nubus_realize(), also as a DeviceClass.realize(), doesn't get the NULL @errp parameter, it hasn't triggered the bug that dereferencing the NULL @errp. To follow the requirement of @errp, add missing ERRP_GUARD() in macfb_nubus_realize(). Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240223085653.1255438-3-zhao1.liu@linux.intel.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
848 lines
23 KiB
C
848 lines
23 KiB
C
/*
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* QEMU Motorola 680x0 Macintosh Video Card Emulation
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* Copyright (c) 2012-2018 Laurent Vivier
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*
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* some parts from QEMU G364 framebuffer Emulator.
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* Copyright (c) 2007-2011 Herve Poussineau
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu/units.h"
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#include "hw/sysbus.h"
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#include "ui/console.h"
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#include "ui/pixel_ops.h"
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#include "hw/nubus/nubus.h"
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#include "hw/display/macfb.h"
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#include "qapi/error.h"
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#include "hw/qdev-properties.h"
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#include "migration/vmstate.h"
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#include "trace.h"
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#define VIDEO_BASE 0x0
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#define DAFB_BASE 0x00800000
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#define MACFB_PAGE_SIZE 4096
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#define MACFB_VRAM_SIZE (4 * MiB)
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#define DAFB_MODE_VADDR1 0x0
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#define DAFB_MODE_VADDR2 0x4
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#define DAFB_MODE_CTRL1 0x8
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#define DAFB_MODE_CTRL2 0xc
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#define DAFB_MODE_SENSE 0x1c
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#define DAFB_INTR_MASK 0x104
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#define DAFB_INTR_STAT 0x108
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#define DAFB_INTR_CLEAR 0x10c
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#define DAFB_LUT_INDEX 0x200
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#define DAFB_LUT 0x210
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#define DAFB_INTR_VBL 0x4
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/* Vertical Blank period (60.15Hz) */
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#define DAFB_INTR_VBL_PERIOD_NS 16625800
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/*
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* Quadra sense codes taken from Apple Technical Note HW26:
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* "Macintosh Quadra Built-In Video". The sense codes and
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* extended sense codes have different meanings:
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*
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* Sense:
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* bit 2: SENSE2 (pin 10)
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* bit 1: SENSE1 (pin 7)
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* bit 0: SENSE0 (pin 4)
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*
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* 0 = pin tied to ground
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* 1 = pin unconnected
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*
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* Extended Sense:
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* bit 2: pins 4-10
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* bit 1: pins 10-7
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* bit 0: pins 7-4
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*
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* 0 = pins tied together
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* 1 = pins unconnected
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*
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* Reads from the sense register appear to be active low, i.e. a 1 indicates
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* that the pin is tied to ground, a 0 indicates the pin is disconnected.
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*
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* Writes to the sense register appear to activate pulldowns i.e. a 1 enables
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* a pulldown on a particular pin.
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*
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* The MacOS toolbox appears to use a series of reads and writes to first
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* determine if extended sense is to be used, and then check which pins are
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* tied together in order to determine the display type.
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*/
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typedef struct MacFbSense {
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uint8_t type;
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uint8_t sense;
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uint8_t ext_sense;
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} MacFbSense;
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static MacFbSense macfb_sense_table[] = {
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{ MACFB_DISPLAY_APPLE_21_COLOR, 0x0, 0 },
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{ MACFB_DISPLAY_APPLE_PORTRAIT, 0x1, 0 },
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{ MACFB_DISPLAY_APPLE_12_RGB, 0x2, 0 },
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{ MACFB_DISPLAY_APPLE_2PAGE_MONO, 0x3, 0 },
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{ MACFB_DISPLAY_NTSC_UNDERSCAN, 0x4, 0 },
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{ MACFB_DISPLAY_NTSC_OVERSCAN, 0x4, 0 },
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{ MACFB_DISPLAY_APPLE_12_MONO, 0x6, 0 },
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{ MACFB_DISPLAY_APPLE_13_RGB, 0x6, 0 },
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{ MACFB_DISPLAY_16_COLOR, 0x7, 0x3 },
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{ MACFB_DISPLAY_PAL1_UNDERSCAN, 0x7, 0x0 },
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{ MACFB_DISPLAY_PAL1_OVERSCAN, 0x7, 0x0 },
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{ MACFB_DISPLAY_PAL2_UNDERSCAN, 0x7, 0x6 },
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{ MACFB_DISPLAY_PAL2_OVERSCAN, 0x7, 0x6 },
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{ MACFB_DISPLAY_VGA, 0x7, 0x5 },
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{ MACFB_DISPLAY_SVGA, 0x7, 0x5 },
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};
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static MacFbMode macfb_mode_table[] = {
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{ MACFB_DISPLAY_VGA, 1, 0x100, 0x71e, 640, 480, 0x400, 0x1000 },
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{ MACFB_DISPLAY_VGA, 2, 0x100, 0x70e, 640, 480, 0x400, 0x1000 },
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{ MACFB_DISPLAY_VGA, 4, 0x100, 0x706, 640, 480, 0x400, 0x1000 },
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{ MACFB_DISPLAY_VGA, 8, 0x100, 0x702, 640, 480, 0x400, 0x1000 },
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{ MACFB_DISPLAY_VGA, 24, 0x100, 0x7ff, 640, 480, 0x1000, 0x1000 },
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{ MACFB_DISPLAY_VGA, 1, 0xd0 , 0x70e, 800, 600, 0x340, 0xe00 },
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{ MACFB_DISPLAY_VGA, 2, 0xd0 , 0x706, 800, 600, 0x340, 0xe00 },
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{ MACFB_DISPLAY_VGA, 4, 0xd0 , 0x702, 800, 600, 0x340, 0xe00 },
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{ MACFB_DISPLAY_VGA, 8, 0xd0, 0x700, 800, 600, 0x340, 0xe00 },
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{ MACFB_DISPLAY_VGA, 24, 0x340, 0x100, 800, 600, 0xd00, 0xe00 },
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{ MACFB_DISPLAY_APPLE_21_COLOR, 1, 0x90, 0x506, 1152, 870, 0x240, 0x80 },
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{ MACFB_DISPLAY_APPLE_21_COLOR, 2, 0x90, 0x502, 1152, 870, 0x240, 0x80 },
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{ MACFB_DISPLAY_APPLE_21_COLOR, 4, 0x90, 0x500, 1152, 870, 0x240, 0x80 },
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{ MACFB_DISPLAY_APPLE_21_COLOR, 8, 0x120, 0x5ff, 1152, 870, 0x480, 0x80 },
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};
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typedef void macfb_draw_line_func(MacfbState *s, uint8_t *d, uint32_t addr,
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int width);
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static inline uint8_t macfb_read_byte(MacfbState *s, uint32_t addr)
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{
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return s->vram[addr & s->vram_bit_mask];
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}
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/* 1-bit color */
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static void macfb_draw_line1(MacfbState *s, uint8_t *d, uint32_t addr,
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int width)
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{
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uint8_t r, g, b;
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int x;
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for (x = 0; x < width; x++) {
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int bit = x & 7;
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int idx = (macfb_read_byte(s, addr) >> (7 - bit)) & 1;
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r = s->color_palette[idx * 3];
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g = s->color_palette[idx * 3 + 1];
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b = s->color_palette[idx * 3 + 2];
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addr += (bit == 7);
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*(uint32_t *)d = rgb_to_pixel32(r, g, b);
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d += 4;
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}
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}
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/* 2-bit color */
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static void macfb_draw_line2(MacfbState *s, uint8_t *d, uint32_t addr,
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int width)
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{
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uint8_t r, g, b;
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int x;
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for (x = 0; x < width; x++) {
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int bit = (x & 3);
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int idx = (macfb_read_byte(s, addr) >> ((3 - bit) << 1)) & 3;
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r = s->color_palette[idx * 3];
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g = s->color_palette[idx * 3 + 1];
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b = s->color_palette[idx * 3 + 2];
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addr += (bit == 3);
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*(uint32_t *)d = rgb_to_pixel32(r, g, b);
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d += 4;
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}
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}
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/* 4-bit color */
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static void macfb_draw_line4(MacfbState *s, uint8_t *d, uint32_t addr,
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int width)
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{
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uint8_t r, g, b;
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int x;
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for (x = 0; x < width; x++) {
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int bit = x & 1;
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int idx = (macfb_read_byte(s, addr) >> ((1 - bit) << 2)) & 15;
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r = s->color_palette[idx * 3];
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g = s->color_palette[idx * 3 + 1];
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b = s->color_palette[idx * 3 + 2];
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addr += (bit == 1);
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*(uint32_t *)d = rgb_to_pixel32(r, g, b);
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d += 4;
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}
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}
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/* 8-bit color */
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static void macfb_draw_line8(MacfbState *s, uint8_t *d, uint32_t addr,
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int width)
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{
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uint8_t r, g, b;
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int x;
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for (x = 0; x < width; x++) {
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r = s->color_palette[macfb_read_byte(s, addr) * 3];
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g = s->color_palette[macfb_read_byte(s, addr) * 3 + 1];
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b = s->color_palette[macfb_read_byte(s, addr) * 3 + 2];
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addr++;
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*(uint32_t *)d = rgb_to_pixel32(r, g, b);
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d += 4;
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}
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}
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/* 16-bit color */
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static void macfb_draw_line16(MacfbState *s, uint8_t *d, uint32_t addr,
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int width)
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{
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uint8_t r, g, b;
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int x;
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for (x = 0; x < width; x++) {
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uint16_t pixel;
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pixel = (macfb_read_byte(s, addr) << 8) | macfb_read_byte(s, addr + 1);
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r = ((pixel >> 10) & 0x1f) << 3;
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g = ((pixel >> 5) & 0x1f) << 3;
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b = (pixel & 0x1f) << 3;
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addr += 2;
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*(uint32_t *)d = rgb_to_pixel32(r, g, b);
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d += 4;
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}
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}
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/* 24-bit color */
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static void macfb_draw_line24(MacfbState *s, uint8_t *d, uint32_t addr,
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int width)
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{
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uint8_t r, g, b;
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int x;
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for (x = 0; x < width; x++) {
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r = macfb_read_byte(s, addr + 1);
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g = macfb_read_byte(s, addr + 2);
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b = macfb_read_byte(s, addr + 3);
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addr += 4;
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*(uint32_t *)d = rgb_to_pixel32(r, g, b);
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d += 4;
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}
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}
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enum {
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MACFB_DRAW_LINE1,
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MACFB_DRAW_LINE2,
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MACFB_DRAW_LINE4,
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MACFB_DRAW_LINE8,
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MACFB_DRAW_LINE16,
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MACFB_DRAW_LINE24,
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MACFB_DRAW_LINE_NB,
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};
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static macfb_draw_line_func * const
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macfb_draw_line_table[MACFB_DRAW_LINE_NB] = {
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macfb_draw_line1,
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macfb_draw_line2,
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macfb_draw_line4,
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macfb_draw_line8,
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macfb_draw_line16,
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macfb_draw_line24,
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};
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static int macfb_check_dirty(MacfbState *s, DirtyBitmapSnapshot *snap,
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ram_addr_t addr, int len)
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{
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return memory_region_snapshot_get_dirty(&s->mem_vram, snap, addr, len);
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}
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static void macfb_draw_graphic(MacfbState *s)
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{
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DisplaySurface *surface = qemu_console_surface(s->con);
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DirtyBitmapSnapshot *snap = NULL;
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ram_addr_t page;
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uint32_t v = 0;
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int y, ymin;
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int macfb_stride = s->mode->stride;
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macfb_draw_line_func *macfb_draw_line;
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switch (s->depth) {
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case 1:
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v = MACFB_DRAW_LINE1;
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break;
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case 2:
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v = MACFB_DRAW_LINE2;
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break;
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case 4:
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v = MACFB_DRAW_LINE4;
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break;
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case 8:
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v = MACFB_DRAW_LINE8;
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break;
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case 16:
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v = MACFB_DRAW_LINE16;
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break;
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case 24:
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v = MACFB_DRAW_LINE24;
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break;
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}
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macfb_draw_line = macfb_draw_line_table[v];
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assert(macfb_draw_line != NULL);
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snap = memory_region_snapshot_and_clear_dirty(&s->mem_vram, 0x0,
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memory_region_size(&s->mem_vram),
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DIRTY_MEMORY_VGA);
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ymin = -1;
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page = s->mode->offset;
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for (y = 0; y < s->height; y++, page += macfb_stride) {
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if (macfb_check_dirty(s, snap, page, macfb_stride)) {
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uint8_t *data_display;
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data_display = surface_data(surface) + y * surface_stride(surface);
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macfb_draw_line(s, data_display, page, s->width);
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if (ymin < 0) {
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ymin = y;
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}
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} else {
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if (ymin >= 0) {
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dpy_gfx_update(s->con, 0, ymin, s->width, y - ymin);
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ymin = -1;
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}
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}
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}
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if (ymin >= 0) {
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dpy_gfx_update(s->con, 0, ymin, s->width, y - ymin);
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}
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g_free(snap);
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}
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static void macfb_invalidate_display(void *opaque)
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{
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MacfbState *s = opaque;
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memory_region_set_dirty(&s->mem_vram, 0, MACFB_VRAM_SIZE);
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}
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static uint32_t macfb_sense_read(MacfbState *s)
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{
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MacFbSense *macfb_sense;
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uint8_t sense;
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assert(s->type < ARRAY_SIZE(macfb_sense_table));
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macfb_sense = &macfb_sense_table[s->type];
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if (macfb_sense->sense == 0x7) {
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/* Extended sense */
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sense = 0;
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if (!(macfb_sense->ext_sense & 1)) {
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/* Pins 7-4 together */
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if (~s->regs[DAFB_MODE_SENSE >> 2] & 3) {
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sense = (~s->regs[DAFB_MODE_SENSE >> 2] & 7) | 3;
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}
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}
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if (!(macfb_sense->ext_sense & 2)) {
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/* Pins 10-7 together */
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if (~s->regs[DAFB_MODE_SENSE >> 2] & 6) {
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sense = (~s->regs[DAFB_MODE_SENSE >> 2] & 7) | 6;
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}
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}
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if (!(macfb_sense->ext_sense & 4)) {
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/* Pins 4-10 together */
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if (~s->regs[DAFB_MODE_SENSE >> 2] & 5) {
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sense = (~s->regs[DAFB_MODE_SENSE >> 2] & 7) | 5;
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}
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}
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} else {
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/* Normal sense */
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sense = (~macfb_sense->sense & 7) |
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(~s->regs[DAFB_MODE_SENSE >> 2] & 7);
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}
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trace_macfb_sense_read(sense);
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return sense;
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}
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static void macfb_sense_write(MacfbState *s, uint32_t val)
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{
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s->regs[DAFB_MODE_SENSE >> 2] = val;
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trace_macfb_sense_write(val);
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return;
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}
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static void macfb_update_mode(MacfbState *s)
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{
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s->width = s->mode->width;
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s->height = s->mode->height;
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s->depth = s->mode->depth;
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trace_macfb_update_mode(s->width, s->height, s->depth);
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macfb_invalidate_display(s);
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}
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static void macfb_mode_write(MacfbState *s)
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{
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MacFbMode *macfb_mode;
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int i;
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for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
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macfb_mode = &macfb_mode_table[i];
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if (s->type != macfb_mode->type) {
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continue;
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}
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if ((s->regs[DAFB_MODE_CTRL1 >> 2] & 0xff) ==
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(macfb_mode->mode_ctrl1 & 0xff) &&
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(s->regs[DAFB_MODE_CTRL2 >> 2] & 0xff) ==
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(macfb_mode->mode_ctrl2 & 0xff)) {
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s->mode = macfb_mode;
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macfb_update_mode(s);
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break;
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}
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}
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}
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static MacFbMode *macfb_find_mode(MacfbDisplayType display_type,
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uint16_t width, uint16_t height,
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uint8_t depth)
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{
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MacFbMode *macfb_mode;
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int i;
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for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
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macfb_mode = &macfb_mode_table[i];
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if (display_type == macfb_mode->type && width == macfb_mode->width &&
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height == macfb_mode->height && depth == macfb_mode->depth) {
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return macfb_mode;
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}
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}
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return NULL;
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}
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static gchar *macfb_mode_list(void)
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{
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GString *list = g_string_new("");
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MacFbMode *macfb_mode;
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int i;
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for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
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macfb_mode = &macfb_mode_table[i];
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g_string_append_printf(list, " %dx%dx%d\n", macfb_mode->width,
|
|
macfb_mode->height, macfb_mode->depth);
|
|
}
|
|
|
|
return g_string_free(list, FALSE);
|
|
}
|
|
|
|
|
|
static void macfb_update_display(void *opaque)
|
|
{
|
|
MacfbState *s = opaque;
|
|
DisplaySurface *surface = qemu_console_surface(s->con);
|
|
|
|
qemu_flush_coalesced_mmio_buffer();
|
|
|
|
if (s->width == 0 || s->height == 0) {
|
|
return;
|
|
}
|
|
|
|
if (s->width != surface_width(surface) ||
|
|
s->height != surface_height(surface)) {
|
|
qemu_console_resize(s->con, s->width, s->height);
|
|
}
|
|
|
|
macfb_draw_graphic(s);
|
|
}
|
|
|
|
static void macfb_update_irq(MacfbState *s)
|
|
{
|
|
uint32_t irq_state = s->regs[DAFB_INTR_STAT >> 2] &
|
|
s->regs[DAFB_INTR_MASK >> 2];
|
|
|
|
if (irq_state) {
|
|
qemu_irq_raise(s->irq);
|
|
} else {
|
|
qemu_irq_lower(s->irq);
|
|
}
|
|
}
|
|
|
|
static int64_t macfb_next_vbl(void)
|
|
{
|
|
return (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + DAFB_INTR_VBL_PERIOD_NS) /
|
|
DAFB_INTR_VBL_PERIOD_NS * DAFB_INTR_VBL_PERIOD_NS;
|
|
}
|
|
|
|
static void macfb_vbl_timer(void *opaque)
|
|
{
|
|
MacfbState *s = opaque;
|
|
int64_t next_vbl;
|
|
|
|
s->regs[DAFB_INTR_STAT >> 2] |= DAFB_INTR_VBL;
|
|
macfb_update_irq(s);
|
|
|
|
/* 60 Hz irq */
|
|
next_vbl = macfb_next_vbl();
|
|
timer_mod(s->vbl_timer, next_vbl);
|
|
}
|
|
|
|
static void macfb_reset(MacfbState *s)
|
|
{
|
|
int i;
|
|
|
|
s->palette_current = 0;
|
|
for (i = 0; i < 256; i++) {
|
|
s->color_palette[i * 3] = 255 - i;
|
|
s->color_palette[i * 3 + 1] = 255 - i;
|
|
s->color_palette[i * 3 + 2] = 255 - i;
|
|
}
|
|
memset(s->vram, 0, MACFB_VRAM_SIZE);
|
|
macfb_invalidate_display(s);
|
|
}
|
|
|
|
static uint64_t macfb_ctrl_read(void *opaque,
|
|
hwaddr addr,
|
|
unsigned int size)
|
|
{
|
|
MacfbState *s = opaque;
|
|
uint64_t val = 0;
|
|
|
|
switch (addr) {
|
|
case DAFB_MODE_VADDR1:
|
|
case DAFB_MODE_VADDR2:
|
|
case DAFB_MODE_CTRL1:
|
|
case DAFB_MODE_CTRL2:
|
|
case DAFB_INTR_STAT:
|
|
val = s->regs[addr >> 2];
|
|
break;
|
|
case DAFB_MODE_SENSE:
|
|
val = macfb_sense_read(s);
|
|
break;
|
|
case DAFB_LUT ... DAFB_LUT + 3:
|
|
val = s->color_palette[s->palette_current];
|
|
s->palette_current = (s->palette_current + 1) %
|
|
ARRAY_SIZE(s->color_palette);
|
|
break;
|
|
default:
|
|
if (addr < MACFB_CTRL_TOPADDR) {
|
|
val = s->regs[addr >> 2];
|
|
}
|
|
}
|
|
|
|
trace_macfb_ctrl_read(addr, val, size);
|
|
return val;
|
|
}
|
|
|
|
static void macfb_ctrl_write(void *opaque,
|
|
hwaddr addr,
|
|
uint64_t val,
|
|
unsigned int size)
|
|
{
|
|
MacfbState *s = opaque;
|
|
int64_t next_vbl;
|
|
|
|
switch (addr) {
|
|
case DAFB_MODE_VADDR1:
|
|
case DAFB_MODE_VADDR2:
|
|
s->regs[addr >> 2] = val;
|
|
break;
|
|
case DAFB_MODE_CTRL1 ... DAFB_MODE_CTRL1 + 3:
|
|
case DAFB_MODE_CTRL2 ... DAFB_MODE_CTRL2 + 3:
|
|
s->regs[addr >> 2] = val;
|
|
if (val) {
|
|
macfb_mode_write(s);
|
|
}
|
|
break;
|
|
case DAFB_MODE_SENSE:
|
|
macfb_sense_write(s, val);
|
|
break;
|
|
case DAFB_INTR_MASK:
|
|
s->regs[addr >> 2] = val;
|
|
if (val & DAFB_INTR_VBL) {
|
|
next_vbl = macfb_next_vbl();
|
|
timer_mod(s->vbl_timer, next_vbl);
|
|
} else {
|
|
timer_del(s->vbl_timer);
|
|
}
|
|
break;
|
|
case DAFB_INTR_CLEAR:
|
|
s->regs[DAFB_INTR_STAT >> 2] &= ~DAFB_INTR_VBL;
|
|
macfb_update_irq(s);
|
|
break;
|
|
case DAFB_LUT_INDEX:
|
|
s->palette_current = (val & 0xff) * 3;
|
|
break;
|
|
case DAFB_LUT ... DAFB_LUT + 3:
|
|
s->color_palette[s->palette_current] = val & 0xff;
|
|
s->palette_current = (s->palette_current + 1) %
|
|
ARRAY_SIZE(s->color_palette);
|
|
if (s->palette_current % 3) {
|
|
macfb_invalidate_display(s);
|
|
}
|
|
break;
|
|
default:
|
|
if (addr < MACFB_CTRL_TOPADDR) {
|
|
s->regs[addr >> 2] = val;
|
|
}
|
|
}
|
|
|
|
trace_macfb_ctrl_write(addr, val, size);
|
|
}
|
|
|
|
static const MemoryRegionOps macfb_ctrl_ops = {
|
|
.read = macfb_ctrl_read,
|
|
.write = macfb_ctrl_write,
|
|
.endianness = DEVICE_BIG_ENDIAN,
|
|
.impl.min_access_size = 1,
|
|
.impl.max_access_size = 4,
|
|
};
|
|
|
|
static int macfb_post_load(void *opaque, int version_id)
|
|
{
|
|
macfb_mode_write(opaque);
|
|
return 0;
|
|
}
|
|
|
|
static const VMStateDescription vmstate_macfb = {
|
|
.name = "macfb",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.post_load = macfb_post_load,
|
|
.fields = (const VMStateField[]) {
|
|
VMSTATE_UINT8(type, MacfbState),
|
|
VMSTATE_UINT8_ARRAY(color_palette, MacfbState, 256 * 3),
|
|
VMSTATE_UINT32(palette_current, MacfbState),
|
|
VMSTATE_UINT32_ARRAY(regs, MacfbState, MACFB_NUM_REGS),
|
|
VMSTATE_TIMER_PTR(vbl_timer, MacfbState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static const GraphicHwOps macfb_ops = {
|
|
.invalidate = macfb_invalidate_display,
|
|
.gfx_update = macfb_update_display,
|
|
};
|
|
|
|
static bool macfb_common_realize(DeviceState *dev, MacfbState *s, Error **errp)
|
|
{
|
|
DisplaySurface *surface;
|
|
|
|
s->mode = macfb_find_mode(s->type, s->width, s->height, s->depth);
|
|
if (!s->mode) {
|
|
gchar *list;
|
|
error_setg(errp, "unknown display mode: width %d, height %d, depth %d",
|
|
s->width, s->height, s->depth);
|
|
list = macfb_mode_list();
|
|
error_append_hint(errp, "Available modes:\n%s", list);
|
|
g_free(list);
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Set mode control registers to match the mode found above so that
|
|
* macfb_mode_write() does the right thing if no MacOS toolbox ROM
|
|
* is present to initialise them
|
|
*/
|
|
s->regs[DAFB_MODE_CTRL1 >> 2] = s->mode->mode_ctrl1;
|
|
s->regs[DAFB_MODE_CTRL2 >> 2] = s->mode->mode_ctrl2;
|
|
|
|
s->con = graphic_console_init(dev, 0, &macfb_ops, s);
|
|
surface = qemu_console_surface(s->con);
|
|
|
|
if (surface_bits_per_pixel(surface) != 32) {
|
|
error_setg(errp, "unknown host depth %d",
|
|
surface_bits_per_pixel(surface));
|
|
return false;
|
|
}
|
|
|
|
memory_region_init_io(&s->mem_ctrl, OBJECT(dev), &macfb_ctrl_ops, s,
|
|
"macfb-ctrl", 0x1000);
|
|
|
|
memory_region_init_ram(&s->mem_vram, OBJECT(dev), "macfb-vram",
|
|
MACFB_VRAM_SIZE, &error_abort);
|
|
memory_region_set_log(&s->mem_vram, true, DIRTY_MEMORY_VGA);
|
|
s->vram = memory_region_get_ram_ptr(&s->mem_vram);
|
|
s->vram_bit_mask = MACFB_VRAM_SIZE - 1;
|
|
|
|
s->vbl_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, macfb_vbl_timer, s);
|
|
macfb_update_mode(s);
|
|
return true;
|
|
}
|
|
|
|
static void macfb_sysbus_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
MacfbSysBusState *s = MACFB(dev);
|
|
MacfbState *ms = &s->macfb;
|
|
|
|
if (!macfb_common_realize(dev, ms, errp)) {
|
|
return;
|
|
}
|
|
|
|
sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_ctrl);
|
|
sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_vram);
|
|
|
|
qdev_init_gpio_out(dev, &ms->irq, 1);
|
|
}
|
|
|
|
static void macfb_nubus_set_irq(void *opaque, int n, int level)
|
|
{
|
|
MacfbNubusState *s = NUBUS_MACFB(opaque);
|
|
NubusDevice *nd = NUBUS_DEVICE(s);
|
|
|
|
nubus_set_irq(nd, level);
|
|
}
|
|
|
|
static void macfb_nubus_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
ERRP_GUARD();
|
|
NubusDevice *nd = NUBUS_DEVICE(dev);
|
|
MacfbNubusState *s = NUBUS_MACFB(dev);
|
|
MacfbNubusDeviceClass *ndc = NUBUS_MACFB_GET_CLASS(dev);
|
|
MacfbState *ms = &s->macfb;
|
|
|
|
ndc->parent_realize(dev, errp);
|
|
if (*errp) {
|
|
return;
|
|
}
|
|
|
|
if (!macfb_common_realize(dev, ms, errp)) {
|
|
return;
|
|
}
|
|
|
|
memory_region_add_subregion(&nd->slot_mem, DAFB_BASE, &ms->mem_ctrl);
|
|
memory_region_add_subregion(&nd->slot_mem, VIDEO_BASE, &ms->mem_vram);
|
|
|
|
ms->irq = qemu_allocate_irq(macfb_nubus_set_irq, s, 0);
|
|
}
|
|
|
|
static void macfb_nubus_unrealize(DeviceState *dev)
|
|
{
|
|
MacfbNubusState *s = NUBUS_MACFB(dev);
|
|
MacfbNubusDeviceClass *ndc = NUBUS_MACFB_GET_CLASS(dev);
|
|
MacfbState *ms = &s->macfb;
|
|
|
|
ndc->parent_unrealize(dev);
|
|
|
|
qemu_free_irq(ms->irq);
|
|
}
|
|
|
|
static void macfb_sysbus_reset(DeviceState *d)
|
|
{
|
|
MacfbSysBusState *s = MACFB(d);
|
|
macfb_reset(&s->macfb);
|
|
}
|
|
|
|
static void macfb_nubus_reset(DeviceState *d)
|
|
{
|
|
MacfbNubusState *s = NUBUS_MACFB(d);
|
|
macfb_reset(&s->macfb);
|
|
}
|
|
|
|
static Property macfb_sysbus_properties[] = {
|
|
DEFINE_PROP_UINT32("width", MacfbSysBusState, macfb.width, 640),
|
|
DEFINE_PROP_UINT32("height", MacfbSysBusState, macfb.height, 480),
|
|
DEFINE_PROP_UINT8("depth", MacfbSysBusState, macfb.depth, 8),
|
|
DEFINE_PROP_UINT8("display", MacfbSysBusState, macfb.type,
|
|
MACFB_DISPLAY_VGA),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static const VMStateDescription vmstate_macfb_sysbus = {
|
|
.name = "macfb-sysbus",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (const VMStateField[]) {
|
|
VMSTATE_STRUCT(macfb, MacfbSysBusState, 1, vmstate_macfb, MacfbState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static Property macfb_nubus_properties[] = {
|
|
DEFINE_PROP_UINT32("width", MacfbNubusState, macfb.width, 640),
|
|
DEFINE_PROP_UINT32("height", MacfbNubusState, macfb.height, 480),
|
|
DEFINE_PROP_UINT8("depth", MacfbNubusState, macfb.depth, 8),
|
|
DEFINE_PROP_UINT8("display", MacfbNubusState, macfb.type,
|
|
MACFB_DISPLAY_VGA),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static const VMStateDescription vmstate_macfb_nubus = {
|
|
.name = "macfb-nubus",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (const VMStateField[]) {
|
|
VMSTATE_STRUCT(macfb, MacfbNubusState, 1, vmstate_macfb, MacfbState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static void macfb_sysbus_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
dc->realize = macfb_sysbus_realize;
|
|
dc->desc = "SysBus Macintosh framebuffer";
|
|
dc->reset = macfb_sysbus_reset;
|
|
dc->vmsd = &vmstate_macfb_sysbus;
|
|
device_class_set_props(dc, macfb_sysbus_properties);
|
|
}
|
|
|
|
static void macfb_nubus_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
MacfbNubusDeviceClass *ndc = NUBUS_MACFB_CLASS(klass);
|
|
|
|
device_class_set_parent_realize(dc, macfb_nubus_realize,
|
|
&ndc->parent_realize);
|
|
device_class_set_parent_unrealize(dc, macfb_nubus_unrealize,
|
|
&ndc->parent_unrealize);
|
|
dc->desc = "Nubus Macintosh framebuffer";
|
|
dc->reset = macfb_nubus_reset;
|
|
dc->vmsd = &vmstate_macfb_nubus;
|
|
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
|
|
device_class_set_props(dc, macfb_nubus_properties);
|
|
}
|
|
|
|
static const TypeInfo macfb_sysbus_info = {
|
|
.name = TYPE_MACFB,
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(MacfbSysBusState),
|
|
.class_init = macfb_sysbus_class_init,
|
|
};
|
|
|
|
static const TypeInfo macfb_nubus_info = {
|
|
.name = TYPE_NUBUS_MACFB,
|
|
.parent = TYPE_NUBUS_DEVICE,
|
|
.instance_size = sizeof(MacfbNubusState),
|
|
.class_init = macfb_nubus_class_init,
|
|
.class_size = sizeof(MacfbNubusDeviceClass),
|
|
};
|
|
|
|
static void macfb_register_types(void)
|
|
{
|
|
type_register_static(&macfb_sysbus_info);
|
|
type_register_static(&macfb_nubus_info);
|
|
}
|
|
|
|
type_init(macfb_register_types)
|