qemu-char.h

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