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/*
* QEMU internal VGA defines.
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <hw/hw.h>
#include "memory.h"
#define ST01_V_RETRACE 0x08
#define ST01_DISP_ENABLE 0x01
/* bochs VBE support */
#define CONFIG_BOCHS_VBE
#define VBE_DISPI_MAX_XRES 1600
#define VBE_DISPI_MAX_YRES 1200
#define VBE_DISPI_MAX_BPP 32
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
#define VBE_DISPI_INDEX_NB 0xa /* size of vbe_regs[] */
#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */
#define VBE_DISPI_ID0 0xB0C0
#define VBE_DISPI_ID1 0xB0C1
#define VBE_DISPI_ID2 0xB0C2
#define VBE_DISPI_ID3 0xB0C3
#define VBE_DISPI_ID4 0xB0C4
#define VBE_DISPI_ID5 0xB0C5
#define VBE_DISPI_DISABLED 0x00
#define VBE_DISPI_ENABLED 0x01
#define VBE_DISPI_GETCAPS 0x02
#define VBE_DISPI_8BIT_DAC 0x20
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
#ifdef CONFIG_BOCHS_VBE
#define VGA_STATE_COMMON_BOCHS_VBE \
uint16_t vbe_index; \
uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \
uint32_t vbe_start_addr; \
uint32_t vbe_line_offset; \
uint32_t vbe_bank_mask; \
int vbe_mapped;
#else
#define VGA_STATE_COMMON_BOCHS_VBE
#endif /* !CONFIG_BOCHS_VBE */
#define CH_ATTR_SIZE (160 * 100)
#define VGA_MAX_HEIGHT 2048
struct vga_precise_retrace {
int64_t ticks_per_char;
int64_t total_chars;
int htotal;
int hstart;
int hend;
int vstart;
int vend;
int freq;
};
union vga_retrace {
struct vga_precise_retrace precise;
};
struct VGACommonState;
typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
typedef struct VGACommonState {
MemoryRegion *legacy_address_space;
uint8_t *vram_ptr;
MemoryRegion vram;
uint32_t vram_size;
uint32_t latch;
MemoryRegion *chain4_alias;
uint8_t sr_index;
uint8_t sr[256];
uint8_t gr_index;
uint8_t gr[256];
uint8_t ar_index;
uint8_t ar[21];
int ar_flip_flop;
uint8_t cr_index;
uint8_t cr[256]; /* CRT registers */
uint8_t msr; /* Misc Output Register */
uint8_t fcr; /* Feature Control Register */
uint8_t st00; /* status 0 */
uint8_t st01; /* status 1 */
uint8_t dac_state;
uint8_t dac_sub_index;
uint8_t dac_read_index;
uint8_t dac_write_index;
uint8_t dac_cache[3]; /* used when writing */
int dac_8bit;
uint8_t palette[768];
int32_t bank_offset;
int (*get_bpp)(struct VGACommonState *s);
void (*get_offsets)(struct VGACommonState *s,
uint32_t *pline_offset,
uint32_t *pstart_addr,
uint32_t *pline_compare);
void (*get_resolution)(struct VGACommonState *s,
int *pwidth,
int *pheight);
VGA_STATE_COMMON_BOCHS_VBE
/* display refresh support */
DisplayState *ds;
uint32_t font_offsets[2];
int graphic_mode;
uint8_t shift_control;
uint8_t double_scan;
uint32_t line_offset;
uint32_t line_compare;
uint32_t start_addr;
uint32_t plane_updated;
uint32_t last_line_offset;
uint8_t last_cw, last_ch;
uint32_t last_width, last_height; /* in chars or pixels */
uint32_t last_scr_width, last_scr_height; /* in pixels */
uint32_t last_depth; /* in bits */
uint8_t cursor_start, cursor_end;
uint32_t cursor_offset;
unsigned int (*rgb_to_pixel)(unsigned int r,
unsigned int g, unsigned b);
vga_hw_update_ptr update;
vga_hw_invalidate_ptr invalidate;
vga_hw_screen_dump_ptr screen_dump;
vga_hw_text_update_ptr text_update;
/* hardware mouse cursor support */
uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
void (*cursor_invalidate)(struct VGACommonState *s);
void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
/* tell for each page if it has been updated since the last time */
uint32_t last_palette[256];
uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
/* retrace */
vga_retrace_fn retrace;
vga_update_retrace_info_fn update_retrace_info;
union vga_retrace retrace_info;
uint8_t is_vbe_vmstate;
} VGACommonState;
static inline int c6_to_8(int v)
{
int b;
v &= 0x3f;
b = v & 1;
return (v << 2) | (b << 1) | b;
}
void vga_common_init(VGACommonState *s, int vga_ram_size);
void vga_init(VGACommonState *s, MemoryRegion *address_space,
MemoryRegion *address_space_io, bool init_vga_ports);
MemoryRegion *vga_init_io(VGACommonState *s,
const MemoryRegionPortio **vga_ports,
const MemoryRegionPortio **vbe_ports);
void vga_common_reset(VGACommonState *s);
void vga_dirty_log_start(VGACommonState *s);
void vga_dirty_log_stop(VGACommonState *s);
extern const VMStateDescription vmstate_vga_common;
uint32_t vga_ioport_read(void *opaque, uint32_t addr);
void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
uint32_t vga_mem_readb(VGACommonState *s, target_phys_addr_t addr);
void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val);
void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
int ppm_save(const char *filename, struct DisplaySurface *ds);
int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
void vga_init_vbe(VGACommonState *s, MemoryRegion *address_space);
extern const uint8_t sr_mask[8];
extern const uint8_t gr_mask[16];
#define VGA_RAM_SIZE (8192 * 1024)
#define VGABIOS_FILENAME "vgabios.bin"
#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
extern const MemoryRegionOps vga_mem_ops;
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