#ifndef QEMU_CHAR_H

#define QEMU_CHAR_H

#include "sys-queue.h"

/* character device */

#define CHR_EVENT_BREAK 0 /* serial break char */

#define CHR_EVENT_FOCUS 1 /* focus to this terminal (modal input needed) */

#define CHR_EVENT_RESET 2 /* new connection established */

#define CHR_IOCTL_SERIAL_SET_PARAMS   1

typedef struct {

    int speed;

    int parity;

    int data_bits;

    int stop_bits;

} QEMUSerialSetParams;

#define CHR_IOCTL_SERIAL_SET_BREAK    2

#define CHR_IOCTL_PP_READ_DATA        3

#define CHR_IOCTL_PP_WRITE_DATA       4

#define CHR_IOCTL_PP_READ_CONTROL     5

#define CHR_IOCTL_PP_WRITE_CONTROL    6

#define CHR_IOCTL_PP_READ_STATUS      7

#define CHR_IOCTL_PP_EPP_READ_ADDR    8

#define CHR_IOCTL_PP_EPP_READ         9

#define CHR_IOCTL_PP_EPP_WRITE_ADDR  10

#define CHR_IOCTL_PP_EPP_WRITE       11

#define CHR_IOCTL_PP_DATA_DIR        12

#define CHR_IOCTL_SERIAL_SET_TIOCM   13

#define CHR_IOCTL_SERIAL_GET_TIOCM   14

#define CHR_TIOCM_CTS	0x020

#define CHR_TIOCM_CAR	0x040

#define CHR_TIOCM_DSR	0x100

#define CHR_TIOCM_RI	0x080

#define CHR_TIOCM_DTR	0x002

#define CHR_TIOCM_RTS	0x004

typedef void IOEventHandler(void *opaque, int event);

struct CharDriverState {

    int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);

    void (*chr_update_read_handler)(struct CharDriverState *s);

    int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);

    IOEventHandler *chr_event;

    IOCanRWHandler *chr_can_read;

    IOReadHandler *chr_read;

    void *handler_opaque;

    void (*chr_send_event)(struct CharDriverState *chr, int event);

    void (*chr_close)(struct CharDriverState *chr);

    void (*chr_accept_input)(struct CharDriverState *chr);

    void *opaque;

    int focus;

    QEMUBH *bh;

    char *label;

    char *filename;

    TAILQ_ENTRY(CharDriverState) next;

};

CharDriverState *qemu_chr_open(const char *label, const char *filename);

void qemu_chr_close(CharDriverState *chr);

void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);

int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);

void qemu_chr_send_event(CharDriverState *s, int event);

void qemu_chr_add_handlers(CharDriverState *s,

                           IOCanRWHandler *fd_can_read,

                           IOReadHandler *fd_read,

                           IOEventHandler *fd_event,

                           void *opaque);

int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);

void qemu_chr_reset(CharDriverState *s);

int qemu_chr_can_read(CharDriverState *s);

void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);

void qemu_chr_accept_input(CharDriverState *s);

void qemu_chr_info(void);

extern int term_escape_char;

/* async I/O support */

int qemu_set_fd_handler2(int fd,

                         IOCanRWHandler *fd_read_poll,

                         IOHandler *fd_read,

                         IOHandler *fd_write,

                         void *opaque);

int qemu_set_fd_handler(int fd,

                        IOHandler *fd_read,

                        IOHandler *fd_write,

                        void *opaque);

#endif