qemu-char.h

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