qemu-char.h

   1 #ifndef QEMU_CHAR_H
   2 #define QEMU_CHAR_H
   3
   4 #include "qemu-common.h"
   5 #include "sys-queue.h"
   6
   7 /* character device */
   8
   9 #define CHR_EVENT_BREAK 0 /* serial break char */
  10 #define CHR_EVENT_FOCUS 1 /* focus to this terminal (modal input needed) */
  11 #define CHR_EVENT_RESET 2 /* new connection established */
  12
  13
  14 #define CHR_IOCTL_SERIAL_SET_PARAMS   1
  15 typedef struct {
  16     int speed;
  17     int parity;
  18     int data_bits;
  19     int stop_bits;
  20 } QEMUSerialSetParams;
  21
  22 #define CHR_IOCTL_SERIAL_SET_BREAK    2
  23
  24 #define CHR_IOCTL_PP_READ_DATA        3
  25 #define CHR_IOCTL_PP_WRITE_DATA       4
  26 #define CHR_IOCTL_PP_READ_CONTROL     5
  27 #define CHR_IOCTL_PP_WRITE_CONTROL    6
  28 #define CHR_IOCTL_PP_READ_STATUS      7
  29 #define CHR_IOCTL_PP_EPP_READ_ADDR    8
  30 #define CHR_IOCTL_PP_EPP_READ         9
  31 #define CHR_IOCTL_PP_EPP_WRITE_ADDR  10
  32 #define CHR_IOCTL_PP_EPP_WRITE       11
  33 #define CHR_IOCTL_PP_DATA_DIR        12
  34
  35 #define CHR_IOCTL_SERIAL_SET_TIOCM   13
  36 #define CHR_IOCTL_SERIAL_GET_TIOCM   14
  37
  38 #define CHR_TIOCM_CTS   0x020
  39 #define CHR_TIOCM_CAR   0x040
  40 #define CHR_TIOCM_DSR   0x100
  41 #define CHR_TIOCM_RI    0x080
  42 #define CHR_TIOCM_DTR   0x002
  43 #define CHR_TIOCM_RTS   0x004
  44
  45 typedef void IOEventHandler(void *opaque, int event);
  46
  47 struct CharDriverState {
  48     void (*init)(struct CharDriverState *s);
  49     int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);
  50     void (*chr_update_read_handler)(struct CharDriverState *s);
  51     int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
  52     IOEventHandler *chr_event;
  53     IOCanRWHandler *chr_can_read;
  54     IOReadHandler *chr_read;
  55     void *handler_opaque;
  56     void (*chr_send_event)(struct CharDriverState *chr, int event);
  57     void (*chr_close)(struct CharDriverState *chr);
  58     void (*chr_accept_input)(struct CharDriverState *chr);
  59     void *opaque;
  60     int focus;
  61     QEMUBH *bh;
  62     char *label;
  63     char *filename;
  64     TAILQ_ENTRY(CharDriverState) next;
  65 };
  66
  67 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s));
  68 void qemu_chr_close(CharDriverState *chr);
  69 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
  70 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
  71 void qemu_chr_send_event(CharDriverState *s, int event);
  72 void qemu_chr_add_handlers(CharDriverState *s,
  73                            IOCanRWHandler *fd_can_read,
  74                            IOReadHandler *fd_read,
  75                            IOEventHandler *fd_event,
  76                            void *opaque);
  77 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
  78 void qemu_chr_reset(CharDriverState *s);
  79 void qemu_chr_initial_reset(void);
  80 int qemu_chr_can_read(CharDriverState *s);
  81 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
  82 void qemu_chr_accept_input(CharDriverState *s);
  83 void qemu_chr_info(Monitor *mon);
  84
  85 extern int term_escape_char;
  86
  87 /* async I/O support */
  88
  89 int qemu_set_fd_handler2(int fd,
  90                          IOCanRWHandler *fd_read_poll,
  91                          IOHandler *fd_read,
  92                          IOHandler *fd_write,
  93                          void *opaque);
  94 int qemu_set_fd_handler(int fd,
  95                         IOHandler *fd_read,
  96                         IOHandler *fd_write,
  97                         void *opaque);
  98
  99 #endif