1#ifndef QEMU_CHAR_H
2#define QEMU_CHAR_H
3
4#include "qemu-common.h"
5#include "qemu-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_OPENED  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
18typedef 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
48typedef void IOEventHandler(void *opaque, int event);
49
50struct 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    IOEventHandler *chr_event;
56    IOCanRWHandler *chr_can_read;
57    IOReadHandler *chr_read;
58    void *handler_opaque;
59    void (*chr_send_event)(struct CharDriverState *chr, int event);
60    void (*chr_close)(struct CharDriverState *chr);
61    void (*chr_accept_input)(struct CharDriverState *chr);
62    void *opaque;
63    int focus;
64    QEMUBH *bh;
65    char *label;
66    char *filename;
67    QTAILQ_ENTRY(CharDriverState) next;
68};
69
70CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s));
71void qemu_chr_close(CharDriverState *chr);
72void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
73int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
74void qemu_chr_send_event(CharDriverState *s, int event);
75void qemu_chr_add_handlers(CharDriverState *s,
76                           IOCanRWHandler *fd_can_read,
77                           IOReadHandler *fd_read,
78                           IOEventHandler *fd_event,
79                           void *opaque);
80int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg);
81void qemu_chr_reset(CharDriverState *s);
82void qemu_chr_initial_reset(void);
83int qemu_chr_can_read(CharDriverState *s);
84void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
85void qemu_chr_accept_input(CharDriverState *s);
86void qemu_chr_info(Monitor *mon);
87
88extern int term_escape_char;
89
90/* async I/O support */
91
92int qemu_set_fd_handler2(int fd,
93                         IOCanRWHandler *fd_read_poll,
94                         IOHandler *fd_read,
95                         IOHandler *fd_write,
96                         void *opaque);
97int qemu_set_fd_handler(int fd,
98                        IOHandler *fd_read,
99                        IOHandler *fd_write,
100                        void *opaque);
101
102#endif
103