#ifndef SYSEMU_H#define SYSEMU_H/* Misc. things related to the system emulator.  *//* vl.c */extern const char *bios_name;extern const char *bios_dir;extern int vm_running;extern const char *qemu_name;typedef struct vm_change_state_entry VMChangeStateEntry;typedef void VMChangeStateHandler(void *opaque, int running);typedef void VMStopHandler(void *opaque, int reason);VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,                                                     void *opaque);void qemu_del_vm_change_state_handler(VMChangeStateEntry *e);int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque);void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque);void vm_start(void);void vm_stop(int reason);int64_t cpu_get_ticks(void);void cpu_enable_ticks(void);void cpu_disable_ticks(void);void qemu_system_reset_request(void);void qemu_system_shutdown_request(void);void qemu_system_powerdown_request(void);#if !defined(TARGET_SPARC)// Please implement a power failure function to signal the OS#define qemu_system_powerdown() do{}while(0)#elsevoid qemu_system_powerdown(void);#endifvoid cpu_save(QEMUFile *f, void *opaque);int cpu_load(QEMUFile *f, void *opaque, int version_id);void do_savevm(const char *name);void do_loadvm(const char *name);void do_delvm(const char *name);void do_info_snapshots(void);void main_loop_wait(int timeout);/* Polling handling *//* return TRUE if no sleep should be done afterwards */typedef int PollingFunc(void *opaque);int qemu_add_polling_cb(PollingFunc *func, void *opaque);void qemu_del_polling_cb(PollingFunc *func, void *opaque);#ifdef _WIN32/* Wait objects handling */typedef void WaitObjectFunc(void *opaque);int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);#endif/* TAP win32 */int tap_win32_init(VLANState *vlan, const char *ifname);/* SLIRP */void do_info_slirp(void);extern int ram_size;extern int bios_size;extern int rtc_utc;extern int rtc_start_date;extern int cirrus_vga_enabled;extern int vmsvga_enabled;extern int graphic_width;extern int graphic_height;extern int graphic_depth;extern const char *keyboard_layout;extern int win2k_install_hack;extern int alt_grab;extern int usb_enabled;extern int smp_cpus;extern int cursor_hide;extern int graphic_rotate;extern int no_quit;extern int semihosting_enabled;extern int autostart;extern int old_param;extern const char *bootp_filename;#ifdef USE_KQEMUextern int kqemu_allowed;#endif#define MAX_OPTION_ROMS 16extern const char *option_rom[MAX_OPTION_ROMS];extern int nb_option_roms;#ifdef TARGET_SPARC#define MAX_PROM_ENVS 128extern const char *prom_envs[MAX_PROM_ENVS];extern unsigned int nb_prom_envs;#endif/* XXX: make it dynamic */#define MAX_BIOS_SIZE (4 * 1024 * 1024)#if defined (TARGET_PPC)#define BIOS_SIZE (1024 * 1024)#elif defined (TARGET_SPARC64)#define BIOS_SIZE ((512 + 32) * 1024)#elif defined(TARGET_MIPS)#define BIOS_SIZE (4 * 1024 * 1024)#endiftypedef enum {    IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD} BlockInterfaceType;typedef struct DriveInfo {    BlockDriverState *bdrv;    BlockInterfaceType type;    int bus;    int unit;} DriveInfo;#define MAX_IDE_DEVS	2#define MAX_SCSI_DEVS	7#define MAX_DRIVES 32int nb_drives;DriveInfo drives_table[MAX_DRIVES+1];extern int drive_get_index(BlockInterfaceType type, int bus, int unit);extern int drive_get_max_bus(BlockInterfaceType type);/* serial ports */#define MAX_SERIAL_PORTS 4extern CharDriverState *serial_hds[MAX_SERIAL_PORTS];/* parallel ports */#define MAX_PARALLEL_PORTS 3extern CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];#ifdef NEED_CPU_H/* loader.c */int get_image_size(const char *filename);int load_image(const char *filename, uint8_t *addr);int load_elf(const char *filename, int64_t virt_to_phys_addend,             uint64_t *pentry, uint64_t *lowaddr, uint64_t *highaddr);int load_aout(const char *filename, uint8_t *addr);int load_uboot(const char *filename, target_ulong *ep, int *is_linux);#endif#ifdef HAS_AUDIOstruct soundhw {    const char *name;    const char *descr;    int enabled;    int isa;    union {        int (*init_isa) (AudioState *s, qemu_irq *pic);        int (*init_pci) (PCIBus *bus, AudioState *s);    } init;};extern struct soundhw soundhw[];#endifvoid do_usb_add(const char *devname);void do_usb_del(const char *devname);void usb_info(void);#endif