Statistics
| Branch: | Revision:

root / qemu-char.h @ 18f1c729

History | View | Annotate | Download (4.6 kB)

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
22
typedef 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

    
52
typedef void IOEventHandler(void *opaque, int event);
53

    
54
struct 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
    IOEventHandler *chr_event;
61
    IOCanReadHandler *chr_can_read;
62
    IOReadHandler *chr_read;
63
    void *handler_opaque;
64
    void (*chr_send_event)(struct CharDriverState *chr, int event);
65
    void (*chr_close)(struct CharDriverState *chr);
66
    void (*chr_accept_input)(struct CharDriverState *chr);
67
    void (*chr_set_echo)(struct CharDriverState *chr, bool echo);
68
    void (*chr_guest_open)(struct CharDriverState *chr);
69
    void (*chr_guest_close)(struct CharDriverState *chr);
70
    void *opaque;
71
    QEMUBH *bh;
72
    char *label;
73
    char *filename;
74
    int opened;
75
    int avail_connections;
76
    QTAILQ_ENTRY(CharDriverState) next;
77
};
78

    
79
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename);
80
CharDriverState *qemu_chr_open_opts(QemuOpts *opts,
81
                                    void (*init)(struct CharDriverState *s));
82
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s));
83
void qemu_chr_set_echo(struct CharDriverState *chr, bool echo);
84
void qemu_chr_guest_open(struct CharDriverState *chr);
85
void qemu_chr_guest_close(struct CharDriverState *chr);
86
void qemu_chr_close(CharDriverState *chr);
87
void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
88
    GCC_FMT_ATTR(2, 3);
89
int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
90
void qemu_chr_send_event(CharDriverState *s, int event);
91
void qemu_chr_add_handlers(CharDriverState *s,
92
                           IOCanReadHandler *fd_can_read,
93
                           IOReadHandler *fd_read,
94
                           IOEventHandler *fd_event,
95
                           void *opaque);
96
int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
97
void qemu_chr_generic_open(CharDriverState *s);
98
int qemu_chr_can_read(CharDriverState *s);
99
void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
100
int qemu_chr_get_msgfd(CharDriverState *s);
101
void qemu_chr_accept_input(CharDriverState *s);
102
void qemu_chr_info_print(Monitor *mon, const QObject *ret_data);
103
void qemu_chr_info(Monitor *mon, QObject **ret_data);
104
CharDriverState *qemu_chr_find(const char *name);
105

    
106
/* add an eventfd to the qemu devices that are polled */
107
CharDriverState *qemu_chr_open_eventfd(int eventfd);
108

    
109
extern int term_escape_char;
110

    
111
/* memory chardev */
112
void qemu_chr_init_mem(CharDriverState *chr);
113
void qemu_chr_close_mem(CharDriverState *chr);
114
QString *qemu_chr_mem_to_qs(CharDriverState *chr);
115
size_t qemu_chr_mem_osize(const CharDriverState *chr);
116

    
117
/* async I/O support */
118

    
119
int qemu_set_fd_handler2(int fd,
120
                         IOCanReadHandler *fd_read_poll,
121
                         IOHandler *fd_read,
122
                         IOHandler *fd_write,
123
                         void *opaque);
124
int qemu_set_fd_handler(int fd,
125
                        IOHandler *fd_read,
126
                        IOHandler *fd_write,
127
                        void *opaque);
128
#endif