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 #define CHR_EVENT_CLOSED  5 /* connection closed */
  15
  16
  17 #define CHR_IOCTL_SERIAL_SET_PARAMS   1
  18 typedef struct {
  19     int speed;
  20     int parity;
  21     int data_bits;
  22     int stop_bits;
  23 } QEMUSerialSetParams;
  24
  25 #define CHR_IOCTL_SERIAL_SET_BREAK    2
  26
  27 #define CHR_IOCTL_PP_READ_DATA        3
  28 #define CHR_IOCTL_PP_WRITE_DATA       4
  29 #define CHR_IOCTL_PP_READ_CONTROL     5
  30 #define CHR_IOCTL_PP_WRITE_CONTROL    6
  31 #define CHR_IOCTL_PP_READ_STATUS      7
  32 #define CHR_IOCTL_PP_EPP_READ_ADDR    8
  33 #define CHR_IOCTL_PP_EPP_READ         9
  34 #define CHR_IOCTL_PP_EPP_WRITE_ADDR  10
  35 #define CHR_IOCTL_PP_EPP_WRITE       11
  36 #define CHR_IOCTL_PP_DATA_DIR        12
  37
  38 #define CHR_IOCTL_SERIAL_SET_TIOCM   13
  39 #define CHR_IOCTL_SERIAL_GET_TIOCM   14
  40
  41 #define CHR_TIOCM_CTS   0x020
  42 #define CHR_TIOCM_CAR   0x040
  43 #define CHR_TIOCM_DSR   0x100
  44 #define CHR_TIOCM_RI    0x080
  45 #define CHR_TIOCM_DTR   0x002
  46 #define CHR_TIOCM_RTS   0x004
  47
  48 typedef void IOEventHandler(void *opaque, int event);
  49
  50 struct CharDriverState {
  51     void (*init)(struct CharDriverState *s);
  52     int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);
  53     void (*chr_update_read_handler)(struct CharDriverState *s);
  54     int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
  55     int (*get_msgfd)(struct CharDriverState *s);
  56     IOEventHandler *chr_event;
  57     IOCanRWHandler *chr_can_read;
  58     IOReadHandler *chr_read;
  59     void *handler_opaque;
  60     void (*chr_send_event)(struct CharDriverState *chr, int event);
  61     void (*chr_close)(struct CharDriverState *chr);
  62     void (*chr_accept_input)(struct CharDriverState *chr);
  63     void *opaque;
  64     int focus;
  65     QEMUBH *bh;
  66     char *label;
  67     char *filename;
  68     TAILQ_ENTRY(CharDriverState) next;
  69 };
  70
  71 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s));
  72 void qemu_chr_close(CharDriverState *chr);
  73 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
  74 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
  75 void qemu_chr_send_event(CharDriverState *s, int event);
  76 void qemu_chr_add_handlers(CharDriverState *s,
  77                            IOCanRWHandler *fd_can_read,
  78                            IOReadHandler *fd_read,
  79                            IOEventHandler *fd_event,
  80                            void *opaque);
  81 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
  82 void qemu_chr_reset(CharDriverState *s);
  83 void qemu_chr_initial_reset(void);
  84 int qemu_chr_can_read(CharDriverState *s);
  85 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
  86 int qemu_chr_get_msgfd(CharDriverState *s);
  87 void qemu_chr_accept_input(CharDriverState *s);
  88 void qemu_chr_info(Monitor *mon);
  89
  90 extern int term_escape_char;
  91
  92 /* async I/O support */
  93
  94 int qemu_set_fd_handler2(int fd,
  95                          IOCanRWHandler *fd_read_poll,
  96                          IOHandler *fd_read,
  97                          IOHandler *fd_write,
  98                          void *opaque);
  99 int qemu_set_fd_handler(int fd,
 100                         IOHandler *fd_read,
 101                         IOHandler *fd_write,
 102                         void *opaque);
 103
 104 #endif