diff options
Diffstat (limited to 'hw/vga.c')
| -rw-r--r-- | hw/vga.c | 99 |
1 files changed, 99 insertions, 0 deletions
@@ -1845,6 +1845,81 @@ void vga_init(VGAState *s) vga_io_memory); } +/* Memory mapped interface */ +static uint32_t vga_mm_readb (void *opaque, target_phys_addr_t addr) +{ + VGAState *s = opaque; + + return vga_ioport_read(s, (addr - s->base_ctrl) >> s->it_shift) & 0xff; +} + +static void vga_mm_writeb (void *opaque, + target_phys_addr_t addr, uint32_t value) +{ + VGAState *s = opaque; + + vga_ioport_write(s, (addr - s->base_ctrl) >> s->it_shift, value & 0xff); +} + +static uint32_t vga_mm_readw (void *opaque, target_phys_addr_t addr) +{ + VGAState *s = opaque; + + return vga_ioport_read(s, (addr - s->base_ctrl) >> s->it_shift) & 0xffff; +} + +static void vga_mm_writew (void *opaque, + target_phys_addr_t addr, uint32_t value) +{ + VGAState *s = opaque; + + vga_ioport_write(s, (addr - s->base_ctrl) >> s->it_shift, value & 0xffff); +} + +static uint32_t vga_mm_readl (void *opaque, target_phys_addr_t addr) +{ + VGAState *s = opaque; + + return vga_ioport_read(s, (addr - s->base_ctrl) >> s->it_shift); +} + +static void vga_mm_writel (void *opaque, + target_phys_addr_t addr, uint32_t value) +{ + VGAState *s = opaque; + + vga_ioport_write(s, (addr - s->base_ctrl) >> s->it_shift, value); +} + +static CPUReadMemoryFunc *vga_mm_read_ctrl[] = { + &vga_mm_readb, + &vga_mm_readw, + &vga_mm_readl, +}; + +static CPUWriteMemoryFunc *vga_mm_write_ctrl[] = { + &vga_mm_writeb, + &vga_mm_writew, + &vga_mm_writel, +}; + +static void vga_mm_init(VGAState *s, target_phys_addr_t vram_base, + target_phys_addr_t ctrl_base, int it_shift) +{ + int s_ioport_ctrl, vga_io_memory; + + s->base_ctrl = ctrl_base; + s->it_shift = it_shift; + s_ioport_ctrl = cpu_register_io_memory(0, vga_mm_read_ctrl, vga_mm_write_ctrl, s); + vga_io_memory = cpu_register_io_memory(0, vga_mem_read, vga_mem_write, s); + + register_savevm("vga", 0, 2, vga_save, vga_load, s); + + cpu_register_physical_memory(ctrl_base, 0x100000, s_ioport_ctrl); + s->bank_offset = 0; + cpu_register_physical_memory(vram_base + 0x000a0000, 0x20000, vga_io_memory); +} + int isa_vga_init(DisplayState *ds, uint8_t *vga_ram_base, unsigned long vga_ram_offset, int vga_ram_size) { @@ -1867,6 +1942,30 @@ int isa_vga_init(DisplayState *ds, uint8_t *vga_ram_base, return 0; } +int isa_vga_mm_init(DisplayState *ds, uint8_t *vga_ram_base, + unsigned long vga_ram_offset, int vga_ram_size, + target_phys_addr_t vram_base, target_phys_addr_t ctrl_base, + int it_shift) +{ + VGAState *s; + + s = qemu_mallocz(sizeof(VGAState)); + if (!s) + return -1; + + vga_common_init(s, ds, vga_ram_base, vga_ram_offset, vga_ram_size); + vga_mm_init(s, vram_base, ctrl_base, it_shift); + + graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump, s); + +#ifdef CONFIG_BOCHS_VBE + /* XXX: use optimized standard vga accesses */ + cpu_register_physical_memory(VBE_DISPI_LFB_PHYSICAL_ADDRESS, + vga_ram_size, vga_ram_offset); +#endif + return 0; +} + int pci_vga_init(PCIBus *bus, DisplayState *ds, uint8_t *vga_ram_base, unsigned long vga_ram_offset, int vga_ram_size, unsigned long vga_bios_offset, int vga_bios_size) |