LXR qemu/qemu-char.h

   1#ifndef QEMU_CHAR_H
   2#define QEMU_CHAR_H
   3
   4#include "qemu-common.h"
   5#include "qemu-queue.h"
   6#include "qemu-option.h"
   7#include "qemu-config.h"
   8#include "qobject.h"
   9#include "qstring.h"
  10
  11/* character device */
  12
  13#define CHR_EVENT_BREAK   0 /* serial break char */
  14#define CHR_EVENT_FOCUS   1 /* focus to this terminal (modal input needed) */
  15#define CHR_EVENT_OPENED  2 /* new connection established */
  16#define CHR_EVENT_MUX_IN  3 /* mux-focus was set to this terminal */
  17#define CHR_EVENT_MUX_OUT 4 /* mux-focus will move on */
  18#define CHR_EVENT_CLOSED  5 /* connection closed */
  19
  20
  21#define CHR_IOCTL_SERIAL_SET_PARAMS   1
  22typedef struct {
  23    int speed;
  24    int parity;
  25    int data_bits;
  26    int stop_bits;
  27} QEMUSerialSetParams;
  28
  29#define CHR_IOCTL_SERIAL_SET_BREAK    2
  30
  31#define CHR_IOCTL_PP_READ_DATA        3
  32#define CHR_IOCTL_PP_WRITE_DATA       4
  33#define CHR_IOCTL_PP_READ_CONTROL     5
  34#define CHR_IOCTL_PP_WRITE_CONTROL    6
  35#define CHR_IOCTL_PP_READ_STATUS      7
  36#define CHR_IOCTL_PP_EPP_READ_ADDR    8
  37#define CHR_IOCTL_PP_EPP_READ         9
  38#define CHR_IOCTL_PP_EPP_WRITE_ADDR  10
  39#define CHR_IOCTL_PP_EPP_WRITE       11
  40#define CHR_IOCTL_PP_DATA_DIR        12
  41
  42#define CHR_IOCTL_SERIAL_SET_TIOCM   13
  43#define CHR_IOCTL_SERIAL_GET_TIOCM   14
  44
  45#define CHR_TIOCM_CTS   0x020
  46#define CHR_TIOCM_CAR   0x040
  47#define CHR_TIOCM_DSR   0x100
  48#define CHR_TIOCM_RI    0x080
  49#define CHR_TIOCM_DTR   0x002
  50#define CHR_TIOCM_RTS   0x004
  51
  52typedef void IOEventHandler(void *opaque, int event);
  53
  54struct CharDriverState {
  55    void (*init)(struct CharDriverState *s);
  56    int (*chr_write)(struct CharDriverState *s, const uint8_t *buf, int len);
  57    void (*chr_update_read_handler)(struct CharDriverState *s);
  58    int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
  59    int (*get_msgfd)(struct CharDriverState *s);
  60    int (*chr_add_client)(struct CharDriverState *chr, int fd);
  61    IOEventHandler *chr_event;
  62    IOCanReadHandler *chr_can_read;
  63    IOReadHandler *chr_read;
  64    void *handler_opaque;
  65    void (*chr_send_event)(struct CharDriverState *chr, int event);
  66    void (*chr_close)(struct CharDriverState *chr);
  67    void (*chr_accept_input)(struct CharDriverState *chr);
  68    void (*chr_set_echo)(struct CharDriverState *chr, bool echo);
  69    void (*chr_guest_open)(struct CharDriverState *chr);
  70    void (*chr_guest_close)(struct CharDriverState *chr);
  71    void *opaque;
  72    QEMUBH *bh;
  73    char *label;
  74    char *filename;
  75    int opened;
  76    int avail_connections;
  77    QTAILQ_ENTRY(CharDriverState) next;
  78};
  79
  80QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename);
  81CharDriverState *qemu_chr_open_opts(QemuOpts *opts,
  82                                    void (*init)(struct CharDriverState *s));
  83CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s));
  84void qemu_chr_set_echo(struct CharDriverState *chr, bool echo);
  85void qemu_chr_guest_open(struct CharDriverState *chr);
  86void qemu_chr_guest_close(struct CharDriverState *chr);
  87void qemu_chr_close(CharDriverState *chr);
  88void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
  89    GCC_FMT_ATTR(2, 3);
  90int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
  91void qemu_chr_send_event(CharDriverState *s, int event);
  92void qemu_chr_add_handlers(CharDriverState *s,
  93                           IOCanReadHandler *fd_can_read,
  94                           IOReadHandler *fd_read,
  95                           IOEventHandler *fd_event,
  96                           void *opaque);
  97int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
  98void qemu_chr_generic_open(CharDriverState *s);
  99int qemu_chr_can_read(CharDriverState *s);
 100void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
 101int qemu_chr_get_msgfd(CharDriverState *s);
 102void qemu_chr_accept_input(CharDriverState *s);
 103int qemu_chr_add_client(CharDriverState *s, int fd);
 104void qemu_chr_info_print(Monitor *mon, const QObject *ret_data);
 105void qemu_chr_info(Monitor *mon, QObject **ret_data);
 106CharDriverState *qemu_chr_find(const char *name);
 107
 108/* add an eventfd to the qemu devices that are polled */
 109CharDriverState *qemu_chr_open_eventfd(int eventfd);
 110
 111extern int term_escape_char;
 112
 113/* memory chardev */
 114void qemu_chr_init_mem(CharDriverState *chr);
 115void qemu_chr_close_mem(CharDriverState *chr);
 116QString *qemu_chr_mem_to_qs(CharDriverState *chr);
 117size_t qemu_chr_mem_osize(const CharDriverState *chr);
 118
 119/* async I/O support */
 120
 121int qemu_set_fd_handler2(int fd,
 122                         IOCanReadHandler *fd_read_poll,
 123                         IOHandler *fd_read,
 124                         IOHandler *fd_write,
 125                         void *opaque);
 126int qemu_set_fd_handler(int fd,
 127                        IOHandler *fd_read,
 128                        IOHandler *fd_write,
 129                        void *opaque);
 130#endif
 131