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_initial_reset(void); 98 void qemu_chr_generic_open(CharDriverState *s); 99 int qemu_chr_can_read(CharDriverState *s); 100 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len); 101 int qemu_chr_get_msgfd(CharDriverState *s); 102 void qemu_chr_accept_input(CharDriverState *s); 103 void qemu_chr_info_print(Monitor *mon, const QObject *ret_data); 104 void qemu_chr_info(Monitor *mon, QObject **ret_data); 105 CharDriverState *qemu_chr_find(const char *name); 106 107 /* add an eventfd to the qemu devices that are polled */ 108 CharDriverState *qemu_chr_open_eventfd(int eventfd); 109 110 extern int term_escape_char; 111 112 /* memory chardev */ 113 void qemu_chr_init_mem(CharDriverState *chr); 114 void qemu_chr_close_mem(CharDriverState *chr); 115 QString *qemu_chr_mem_to_qs(CharDriverState *chr); 116 size_t qemu_chr_mem_osize(const CharDriverState *chr); 117 118 /* async I/O support */ 119 120 int qemu_set_fd_handler2(int fd, 121 IOCanReadHandler *fd_read_poll, 122 IOHandler *fd_read, 123 IOHandler *fd_write, 124 void *opaque); 125 int qemu_set_fd_handler(int fd, 126 IOHandler *fd_read, 127 IOHandler *fd_write, 128 void *opaque); 129 #endif 130