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 typedef void IOEventHandler(void *opaque, int event);
  32
  33 struct CharDriverState {
  34     int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);
  35     void (*chr_update_read_handler)(struct CharDriverState *s);
  36     int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
  37     IOEventHandler *chr_event;
  38     IOCanRWHandler *chr_can_read;
  39     IOReadHandler *chr_read;
  40     void *handler_opaque;
  41     void (*chr_send_event)(struct CharDriverState *chr, int event);
  42     void (*chr_close)(struct CharDriverState *chr);
  43     void *opaque;
  44     int focus;
  45     QEMUBH *bh;
  46 };
  47
  48 CharDriverState *qemu_chr_open(const char *filename);
  49 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
  50 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
  51 void qemu_chr_send_event(CharDriverState *s, int event);
  52 void qemu_chr_add_handlers(CharDriverState *s,
  53                            IOCanRWHandler *fd_can_read,
  54                            IOReadHandler *fd_read,
  55                            IOEventHandler *fd_event,
  56                            void *opaque);
  57 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
  58 void qemu_chr_reset(CharDriverState *s);
  59 int qemu_chr_can_read(CharDriverState *s);
  60 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
  61
  62 /* async I/O support */
  63
  64 int qemu_set_fd_handler2(int fd,
  65                          IOCanRWHandler *fd_read_poll,
  66                          IOHandler *fd_read,
  67                          IOHandler *fd_write,
  68                          void *opaque);
  69 int qemu_set_fd_handler(int fd,
  70                         IOHandler *fd_read,
  71                         IOHandler *fd_write,
  72                         void *opaque);
  73
  74 #endif