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 #define CHR_EVENT_MUX_IN  3 /* mux-focus was set to this terminal */
  13 #define CHR_EVENT_MUX_OUT 4 /* mux-focus will move on */
  14
  15
  16 #define CHR_IOCTL_SERIAL_SET_PARAMS   1
  17 typedef struct {
  18     int speed;
  19     int parity;
  20     int data_bits;
  21     int stop_bits;
  22 } QEMUSerialSetParams;
  23
  24 #define CHR_IOCTL_SERIAL_SET_BREAK    2
  25
  26 #define CHR_IOCTL_PP_READ_DATA        3
  27 #define CHR_IOCTL_PP_WRITE_DATA       4
  28 #define CHR_IOCTL_PP_READ_CONTROL     5
  29 #define CHR_IOCTL_PP_WRITE_CONTROL    6
  30 #define CHR_IOCTL_PP_READ_STATUS      7
  31 #define CHR_IOCTL_PP_EPP_READ_ADDR    8
  32 #define CHR_IOCTL_PP_EPP_READ         9
  33 #define CHR_IOCTL_PP_EPP_WRITE_ADDR  10
  34 #define CHR_IOCTL_PP_EPP_WRITE       11
  35 #define CHR_IOCTL_PP_DATA_DIR        12
  36
  37 #define CHR_IOCTL_SERIAL_SET_TIOCM   13
  38 #define CHR_IOCTL_SERIAL_GET_TIOCM   14
  39
  40 #define CHR_TIOCM_CTS   0x020
  41 #define CHR_TIOCM_CAR   0x040
  42 #define CHR_TIOCM_DSR   0x100
  43 #define CHR_TIOCM_RI    0x080
  44 #define CHR_TIOCM_DTR   0x002
  45 #define CHR_TIOCM_RTS   0x004
  46
  47 typedef void IOEventHandler(void *opaque, int event);
  48
  49 struct CharDriverState {
  50     void (*init)(struct CharDriverState *s);
  51     int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);
  52     void (*chr_update_read_handler)(struct CharDriverState *s);
  53     int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
  54     IOEventHandler *chr_event;
  55     IOCanRWHandler *chr_can_read;
  56     IOReadHandler *chr_read;
  57     void *handler_opaque;
  58     void (*chr_send_event)(struct CharDriverState *chr, int event);
  59     void (*chr_close)(struct CharDriverState *chr);
  60     void (*chr_accept_input)(struct CharDriverState *chr);
  61     void *opaque;
  62     int focus;
  63     QEMUBH *bh;
  64     char *label;
  65     char *filename;
  66     TAILQ_ENTRY(CharDriverState) next;
  67 };
  68
  69 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s));
  70 void qemu_chr_close(CharDriverState *chr);
  71 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
  72 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
  73 void qemu_chr_send_event(CharDriverState *s, int event);
  74 void qemu_chr_add_handlers(CharDriverState *s,
  75                            IOCanRWHandler *fd_can_read,
  76                            IOReadHandler *fd_read,
  77                            IOEventHandler *fd_event,
  78                            void *opaque);
  79 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
  80 void qemu_chr_reset(CharDriverState *s);
  81 void qemu_chr_initial_reset(void);
  82 int qemu_chr_can_read(CharDriverState *s);
  83 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
  84 void qemu_chr_accept_input(CharDriverState *s);
  85 void qemu_chr_info(Monitor *mon);
  86
  87 extern int term_escape_char;
  88
  89 /* async I/O support */
  90
  91 int qemu_set_fd_handler2(int fd,
  92                          IOCanRWHandler *fd_read_poll,
  93                          IOHandler *fd_read,
  94                          IOHandler *fd_write,
  95                          void *opaque);
  96 int qemu_set_fd_handler(int fd,
  97                         IOHandler *fd_read,
  98                         IOHandler *fd_write,
  99                         void *opaque);
 100
 101 #endif