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#ifndef QEMU_CHAR_H
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#define QEMU_CHAR_H
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#include "sys-queue.h"
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/* character device */
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#define CHR_EVENT_BREAK 0 /* serial break char */
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#define CHR_EVENT_FOCUS 1 /* focus to this terminal (modal input needed) */
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#define CHR_EVENT_RESET 2 /* new connection established */
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#define CHR_IOCTL_SERIAL_SET_PARAMS   1
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typedef struct {
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    int speed;
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    int parity;
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    int data_bits;
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    int stop_bits;
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} QEMUSerialSetParams;
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#define CHR_IOCTL_SERIAL_SET_BREAK    2
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#define CHR_IOCTL_PP_READ_DATA        3
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#define CHR_IOCTL_PP_WRITE_DATA       4
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#define CHR_IOCTL_PP_READ_CONTROL     5
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#define CHR_IOCTL_PP_WRITE_CONTROL    6
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#define CHR_IOCTL_PP_READ_STATUS      7
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#define CHR_IOCTL_PP_EPP_READ_ADDR    8
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#define CHR_IOCTL_PP_EPP_READ         9
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#define CHR_IOCTL_PP_EPP_WRITE_ADDR  10
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#define CHR_IOCTL_PP_EPP_WRITE       11
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#define CHR_IOCTL_PP_DATA_DIR        12
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#define CHR_IOCTL_SERIAL_SET_TIOCM   13
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#define CHR_IOCTL_SERIAL_GET_TIOCM   14
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#define CHR_TIOCM_CTS        0x020
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#define CHR_TIOCM_CAR        0x040
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#define CHR_TIOCM_DSR        0x100
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#define CHR_TIOCM_RI        0x080
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#define CHR_TIOCM_DTR        0x002
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#define CHR_TIOCM_RTS        0x004
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typedef void IOEventHandler(void *opaque, int event);
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struct CharDriverState {
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    int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);
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    void (*chr_update_read_handler)(struct CharDriverState *s);
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    int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
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    IOEventHandler *chr_event;
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    IOCanRWHandler *chr_can_read;
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    IOReadHandler *chr_read;
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    void *handler_opaque;
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    void (*chr_send_event)(struct CharDriverState *chr, int event);
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    void (*chr_close)(struct CharDriverState *chr);
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    void (*chr_accept_input)(struct CharDriverState *chr);
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    void *opaque;
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    int focus;
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    QEMUBH *bh;
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    char *label;
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    char *filename;
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    TAILQ_ENTRY(CharDriverState) next;
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};
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CharDriverState *qemu_chr_open(const char *label, const char *filename);
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void qemu_chr_close(CharDriverState *chr);
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void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
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int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
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void qemu_chr_send_event(CharDriverState *s, int event);
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void qemu_chr_add_handlers(CharDriverState *s,
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                           IOCanRWHandler *fd_can_read,
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                           IOReadHandler *fd_read,
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                           IOEventHandler *fd_event,
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                           void *opaque);
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int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
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void qemu_chr_reset(CharDriverState *s);
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int qemu_chr_can_read(CharDriverState *s);
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void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
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void qemu_chr_accept_input(CharDriverState *s);
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void qemu_chr_info(void);
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extern int term_escape_char;
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/* async I/O support */
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int qemu_set_fd_handler2(int fd,
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                         IOCanRWHandler *fd_read_poll,
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                         IOHandler *fd_read,
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                         IOHandler *fd_write,
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                         void *opaque);
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int qemu_set_fd_handler(int fd,
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                        IOHandler *fd_read,
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                        IOHandler *fd_write,
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                        void *opaque);
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#endif