c227f0995e
In the very least, a change like this requires discussion on the list.
The naming convention is goofy and it causes a massive merge problem. Something
like this _must_ be presented on the list first so people can provide input
and cope with it.
This reverts commit 99a0949b72.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
131 lines
4.0 KiB
C
131 lines
4.0 KiB
C
/*
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* QEMU ISA MM VGA Emulator.
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "console.h"
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#include "pc.h"
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#include "vga_int.h"
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#include "pixel_ops.h"
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#include "qemu-timer.h"
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typedef struct ISAVGAMMState {
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VGACommonState vga;
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int it_shift;
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} ISAVGAMMState;
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/* Memory mapped interface */
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static uint32_t vga_mm_readb (void *opaque, target_phys_addr_t addr)
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{
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ISAVGAMMState *s = opaque;
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return vga_ioport_read(&s->vga, addr >> s->it_shift) & 0xff;
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}
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static void vga_mm_writeb (void *opaque,
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target_phys_addr_t addr, uint32_t value)
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{
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ISAVGAMMState *s = opaque;
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vga_ioport_write(&s->vga, addr >> s->it_shift, value & 0xff);
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}
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static uint32_t vga_mm_readw (void *opaque, target_phys_addr_t addr)
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{
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ISAVGAMMState *s = opaque;
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return vga_ioport_read(&s->vga, addr >> s->it_shift) & 0xffff;
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}
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static void vga_mm_writew (void *opaque,
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target_phys_addr_t addr, uint32_t value)
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{
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ISAVGAMMState *s = opaque;
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vga_ioport_write(&s->vga, addr >> s->it_shift, value & 0xffff);
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}
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static uint32_t vga_mm_readl (void *opaque, target_phys_addr_t addr)
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{
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ISAVGAMMState *s = opaque;
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return vga_ioport_read(&s->vga, addr >> s->it_shift);
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}
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static void vga_mm_writel (void *opaque,
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target_phys_addr_t addr, uint32_t value)
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{
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ISAVGAMMState *s = opaque;
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vga_ioport_write(&s->vga, addr >> s->it_shift, value);
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}
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static CPUReadMemoryFunc * const vga_mm_read_ctrl[] = {
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&vga_mm_readb,
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&vga_mm_readw,
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&vga_mm_readl,
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};
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static CPUWriteMemoryFunc * const vga_mm_write_ctrl[] = {
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&vga_mm_writeb,
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&vga_mm_writew,
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&vga_mm_writel,
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};
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static void vga_mm_init(ISAVGAMMState *s, target_phys_addr_t vram_base,
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target_phys_addr_t ctrl_base, int it_shift)
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{
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int s_ioport_ctrl, vga_io_memory;
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s->it_shift = it_shift;
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s_ioport_ctrl = cpu_register_io_memory(vga_mm_read_ctrl, vga_mm_write_ctrl, s);
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vga_io_memory = cpu_register_io_memory(vga_mem_read, vga_mem_write, s);
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register_savevm("vga", 0, 2, vga_common_save, vga_common_load, s);
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cpu_register_physical_memory(ctrl_base, 0x100000, s_ioport_ctrl);
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s->vga.bank_offset = 0;
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cpu_register_physical_memory(vram_base + 0x000a0000, 0x20000, vga_io_memory);
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qemu_register_coalesced_mmio(vram_base + 0x000a0000, 0x20000);
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}
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int isa_vga_mm_init(target_phys_addr_t vram_base,
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target_phys_addr_t ctrl_base, int it_shift)
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{
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ISAVGAMMState *s;
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s = qemu_mallocz(sizeof(*s));
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vga_common_init(&s->vga, VGA_RAM_SIZE);
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vga_mm_init(s, vram_base, ctrl_base, it_shift);
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s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
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s->vga.screen_dump, s->vga.text_update, s);
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#ifdef CONFIG_BOCHS_VBE
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/* XXX: use optimized standard vga accesses */
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cpu_register_physical_memory(VBE_DISPI_LFB_PHYSICAL_ADDRESS,
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VGA_RAM_SIZE, s->vga.vram_offset);
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#endif
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return 0;
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}
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