make the bios be a ROM memory - glibc hacks for setvbuf and signals - correct century...

[qemu.git] / vl.h

/*
 * QEMU System Emulator header
 * 
 * Copyright (c) 2003 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.
 */
#ifndef VL_H
#define VL_H

/* vl.c */
struct CPUX86State;
extern int reset_requested;
extern int64_t ticks_per_sec;

typedef void (IOPortWriteFunc)(struct CPUX86State *env, uint32_t address, uint32_t data);
typedef uint32_t (IOPortReadFunc)(struct CPUX86State *env, uint32_t address);

void *get_mmap_addr(unsigned long size);
int register_ioport_read(int start, int length, IOPortReadFunc *func, int size);
int register_ioport_write(int start, int length, IOPortWriteFunc *func, int size);
void pic_set_irq(int irq, int level);
int64_t cpu_get_ticks(void);

void kbd_put_keycode(int keycode);

#define MOUSE_EVENT_LBUTTON 0x01
#define MOUSE_EVENT_RBUTTON 0x02
#define MOUSE_EVENT_MBUTTON 0x04
void kbd_mouse_event(int dx, int dy, int dz, int buttons_state);

/* block.c */
typedef struct BlockDriverState BlockDriverState;

BlockDriverState *bdrv_open(const char *filename, int snapshot);
void bdrv_close(BlockDriverState *bs);
int bdrv_read(BlockDriverState *bs, int64_t sector_num, 
              uint8_t *buf, int nb_sectors);
int bdrv_write(BlockDriverState *bs, int64_t sector_num, 
               const uint8_t *buf, int nb_sectors);
void bdrv_get_geometry(BlockDriverState *bs, int64_t *nb_sectors_ptr);
int bdrv_commit(BlockDriverState *bs);

/* user mode linux compatible COW file */
#define COW_MAGIC 0x4f4f4f4d  /* MOOO */
#define COW_VERSION 2

struct cow_header_v2 {
    uint32_t magic;
    uint32_t version;
    char backing_file[1024];
    int32_t mtime;
    uint64_t size;
    uint32_t sectorsize;
};

/* vga.c */

#define VGA_RAM_SIZE (8192 * 1024)

typedef struct DisplayState {
    uint8_t *data;
    int linesize;
    int depth;
    void (*dpy_update)(struct DisplayState *s, int x, int y, int w, int h);
    void (*dpy_resize)(struct DisplayState *s, int w, int h);
    void (*dpy_refresh)(struct DisplayState *s);
} DisplayState;

static inline void dpy_update(DisplayState *s, int x, int y, int w, int h)
{
    s->dpy_update(s, x, y, w, h);
}

static inline void dpy_resize(DisplayState *s, int w, int h)
{
    s->dpy_resize(s, w, h);
}

int vga_init(DisplayState *ds, uint8_t *vga_ram_base, 
             unsigned long vga_ram_offset, int vga_ram_size);
void vga_update_display(void);

/* sdl.c */
void sdl_display_init(DisplayState *ds);

/* ide.c */
#define MAX_DISKS 4

extern BlockDriverState *bs_table[MAX_DISKS];

void ide_init(void);
void ide_set_geometry(int n, int cyls, int heads, int secs);
void ide_set_cdrom(int n, int is_cdrom);

/* oss.c */
typedef enum {
  AUD_FMT_U8,
  AUD_FMT_S8,
  AUD_FMT_U16,
  AUD_FMT_S16
} audfmt_e;

void AUD_open (int rfreq, int rnchannels, audfmt_e rfmt);
void AUD_reset (int rfreq, int rnchannels, audfmt_e rfmt);
int AUD_write (void *in_buf, int size);
void AUD_run (void);
void AUD_adjust_estimate (int _leftover);
int AUD_get_free (void);
int AUD_get_live (void);
int AUD_get_buffer_size (void);
void AUD_init (void);

/* dma.c */
typedef int (*DMA_read_handler) (uint32_t addr, int size, int *irq);
typedef int (*DMA_misc_handler) (int);

int DMA_get_channel_mode (int nchan);
void DMA_hold_DREQ (int nchan);
void DMA_release_DREQ (int nchan);
void DMA_run (void);
void DMA_init (void);
void DMA_register_channel (int nchan,
                           DMA_read_handler read_handler,
                           DMA_misc_handler misc_handler);

/* sb16.c */
void SB16_run (void);
void SB16_init (void);
 
#endif /* VL_H */