diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/chardev/char-fd.h | 44 | ||||
| -rw-r--r-- | include/chardev/char-fe.h | 251 | ||||
| -rw-r--r-- | include/chardev/char-io.h | 46 | ||||
| -rw-r--r-- | include/chardev/char-mux.h | 64 | ||||
| -rw-r--r-- | include/chardev/char-parallel.h | 50 | ||||
| -rw-r--r-- | include/chardev/char-serial.h | 57 | ||||
| -rw-r--r-- | include/chardev/char-win-stdio.h | 29 | ||||
| -rw-r--r-- | include/chardev/char-win.h | 51 | ||||
| -rw-r--r-- | include/chardev/char.h | 229 | ||||
| -rw-r--r-- | include/hw/char/bcm2835_aux.h | 2 | ||||
| -rw-r--r-- | include/hw/char/cadence_uart.h | 2 | ||||
| -rw-r--r-- | include/hw/char/digic-uart.h | 2 | ||||
| -rw-r--r-- | include/hw/char/imx_serial.h | 2 | ||||
| -rw-r--r-- | include/hw/char/serial.h | 4 | ||||
| -rw-r--r-- | include/hw/char/stm32f2xx_usart.h | 2 | ||||
| -rw-r--r-- | include/sysemu/char.h | 499 |
16 files changed, 828 insertions, 506 deletions
diff --git a/include/chardev/char-fd.h b/include/chardev/char-fd.h new file mode 100644 index 0000000000..55ae5b47b0 --- /dev/null +++ b/include/chardev/char-fd.h @@ -0,0 +1,44 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_FD_H +#define CHAR_FD_H + +#include "io/channel.h" +#include "chardev/char.h" + +typedef struct FDChardev { + Chardev parent; + Chardev *chr; + QIOChannel *ioc_in, *ioc_out; + int max_size; +} FDChardev; + +#define TYPE_CHARDEV_FD "chardev-fd" + +#define FD_CHARDEV(obj) OBJECT_CHECK(FDChardev, (obj), TYPE_CHARDEV_FD) + +void qemu_chr_open_fd(Chardev *chr, int fd_in, int fd_out); +int qmp_chardev_open_file_source(char *src, int flags, Error **errp); + +#endif /* CHAR_FD_H */ diff --git a/include/chardev/char-fe.h b/include/chardev/char-fe.h new file mode 100644 index 0000000000..2cbb262f66 --- /dev/null +++ b/include/chardev/char-fe.h @@ -0,0 +1,251 @@ +#ifndef QEMU_CHAR_FE_H +#define QEMU_CHAR_FE_H + +#include "chardev/char.h" + +typedef void IOEventHandler(void *opaque, int event); + +/* This is the backend as seen by frontend, the actual backend is + * Chardev */ +struct CharBackend { + Chardev *chr; + IOEventHandler *chr_event; + IOCanReadHandler *chr_can_read; + IOReadHandler *chr_read; + void *opaque; + int tag; + int fe_open; +}; + +/** + * @qemu_chr_fe_init: + * + * Initializes a front end for the given CharBackend and + * Chardev. Call qemu_chr_fe_deinit() to remove the association and + * release the driver. + * + * Returns: false on error. + */ +bool qemu_chr_fe_init(CharBackend *b, Chardev *s, Error **errp); + +/** + * @qemu_chr_fe_deinit: + * @b: a CharBackend + * @del: if true, delete the chardev backend +* + * Dissociate the CharBackend from the Chardev. + * + * Safe to call without associated Chardev. + */ +void qemu_chr_fe_deinit(CharBackend *b, bool del); + +/** + * @qemu_chr_fe_get_driver: + * + * Returns the driver associated with a CharBackend or NULL if no + * associated Chardev. + */ +Chardev *qemu_chr_fe_get_driver(CharBackend *be); + +/** + * @qemu_chr_fe_set_handlers: + * @b: a CharBackend + * @fd_can_read: callback to get the amount of data the frontend may + * receive + * @fd_read: callback to receive data from char + * @fd_event: event callback + * @opaque: an opaque pointer for the callbacks + * @context: a main loop context or NULL for the default + * @set_open: whether to call qemu_chr_fe_set_open() implicitely when + * any of the handler is non-NULL + * + * Set the front end char handlers. The front end takes the focus if + * any of the handler is non-NULL. + * + * Without associated Chardev, nothing is changed. + */ +void qemu_chr_fe_set_handlers(CharBackend *b, + IOCanReadHandler *fd_can_read, + IOReadHandler *fd_read, + IOEventHandler *fd_event, + void *opaque, + GMainContext *context, + bool set_open); + +/** + * @qemu_chr_fe_take_focus: + * + * Take the focus (if the front end is muxed). + * + * Without associated Chardev, nothing is changed. + */ +void qemu_chr_fe_take_focus(CharBackend *b); + +/** + * @qemu_chr_fe_accept_input: + * + * Notify that the frontend is ready to receive data + */ +void qemu_chr_fe_accept_input(CharBackend *be); + +/** + * @qemu_chr_fe_disconnect: + * + * Close a fd accpeted by character backend. + * Without associated Chardev, do nothing. + */ +void qemu_chr_fe_disconnect(CharBackend *be); + +/** + * @qemu_chr_fe_wait_connected: + * + * Wait for characted backend to be connected, return < 0 on error or + * if no assicated Chardev. + */ +int qemu_chr_fe_wait_connected(CharBackend *be, Error **errp); + +/** + * @qemu_chr_fe_set_echo: + * + * Ask the backend to override its normal echo setting. This only really + * applies to the stdio backend and is used by the QMP server such that you + * can see what you type if you try to type QMP commands. + * Without associated Chardev, do nothing. + * + * @echo true to enable echo, false to disable echo + */ +void qemu_chr_fe_set_echo(CharBackend *be, bool echo); + +/** + * @qemu_chr_fe_set_open: + * + * Set character frontend open status. This is an indication that the + * front end is ready (or not) to begin doing I/O. + * Without associated Chardev, do nothing. + */ +void qemu_chr_fe_set_open(CharBackend *be, int fe_open); + +/** + * @qemu_chr_fe_printf: + * + * Write to a character backend using a printf style interface. This + * function is thread-safe. It does nothing without associated + * Chardev. + * + * @fmt see #printf + */ +void qemu_chr_fe_printf(CharBackend *be, const char *fmt, ...) + GCC_FMT_ATTR(2, 3); + +/** + * @qemu_chr_fe_add_watch: + * + * If the backend is connected, create and add a #GSource that fires + * when the given condition (typically G_IO_OUT|G_IO_HUP or G_IO_HUP) + * is active; return the #GSource's tag. If it is disconnected, + * or without associated Chardev, return 0. + * + * @cond the condition to poll for + * @func the function to call when the condition happens + * @user_data the opaque pointer to pass to @func + * + * Returns: the source tag + */ +guint qemu_chr_fe_add_watch(CharBackend *be, GIOCondition cond, + GIOFunc func, void *user_data); + +/** + * @qemu_chr_fe_write: + * + * Write data to a character backend from the front end. This function + * will send data from the front end to the back end. This function + * is thread-safe. + * + * @buf the data + * @len the number of bytes to send + * + * Returns: the number of bytes consumed (0 if no assicated Chardev) + */ +int qemu_chr_fe_write(CharBackend *be, const uint8_t *buf, int len); + +/** + * @qemu_chr_fe_write_all: + * + * Write data to a character backend from the front end. This function will + * send data from the front end to the back end. Unlike @qemu_chr_fe_write, + * this function will block if the back end cannot consume all of the data + * attempted to be written. This function is thread-safe. + * + * @buf the data + * @len the number of bytes to send + * + * Returns: the number of bytes consumed (0 if no assicated Chardev) + */ +int qemu_chr_fe_write_all(CharBackend *be, const uint8_t *buf, int len); + +/** + * @qemu_chr_fe_read_all: + * + * Read data to a buffer from the back end. + * + * @buf the data buffer + * @len the number of bytes to read + * + * Returns: the number of bytes read (0 if no assicated Chardev) + */ +int qemu_chr_fe_read_all(CharBackend *be, uint8_t *buf, int len); + +/** + * @qemu_chr_fe_ioctl: + * + * Issue a device specific ioctl to a backend. This function is thread-safe. + * + * @cmd see CHR_IOCTL_* + * @arg the data associated with @cmd + * + * Returns: if @cmd is not supported by the backend or there is no + * associated Chardev, -ENOTSUP, otherwise the return + * value depends on the semantics of @cmd + */ +int qemu_chr_fe_ioctl(CharBackend *be, int cmd, void *arg); + +/** + * @qemu_chr_fe_get_msgfd: + * + * For backends capable of fd passing, return the latest file descriptor passed + * by a client. + * + * Returns: -1 if fd passing isn't supported or there is no pending file + * descriptor. If a file descriptor is returned, subsequent calls to + * this function will return -1 until a client sends a new file + * descriptor. + */ +int qemu_chr_fe_get_msgfd(CharBackend *be); + +/** + * @qemu_chr_fe_get_msgfds: + * + * For backends capable of fd passing, return the number of file received + * descriptors and fills the fds array up to num elements + * + * Returns: -1 if fd passing isn't supported or there are no pending file + * descriptors. If file descriptors are returned, subsequent calls to + * this function will return -1 until a client sends a new set of file + * descriptors. + */ +int qemu_chr_fe_get_msgfds(CharBackend *be, int *fds, int num); + +/** + * @qemu_chr_fe_set_msgfds: + * + * For backends capable of fd passing, set an array of fds to be passed with + * the next send operation. + * A subsequent call to this function before calling a write function will + * result in overwriting the fd array with the new value without being send. + * Upon writing the message the fd array is freed. + * + * Returns: -1 if fd passing isn't supported or no associated Chardev. + */ +int qemu_chr_fe_set_msgfds(CharBackend *be, int *fds, int num); + +#endif /* QEMU_CHAR_FE_H */ diff --git a/include/chardev/char-io.h b/include/chardev/char-io.h new file mode 100644 index 0000000000..9638da5100 --- /dev/null +++ b/include/chardev/char-io.h @@ -0,0 +1,46 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_IO_H +#define CHAR_IO_H + +#include "qemu-common.h" +#include "io/channel.h" +#include "chardev/char.h" + +/* Can only be used for read */ +GSource *io_add_watch_poll(Chardev *chr, + QIOChannel *ioc, + IOCanReadHandler *fd_can_read, + QIOChannelFunc fd_read, + gpointer user_data, + GMainContext *context); + +void remove_fd_in_watch(Chardev *chr); + +int io_channel_send(QIOChannel *ioc, const void *buf, size_t len); + +int io_channel_send_full(QIOChannel *ioc, const void *buf, size_t len, + int *fds, size_t nfds); + +#endif /* CHAR_IO_H */ diff --git a/include/chardev/char-mux.h b/include/chardev/char-mux.h new file mode 100644 index 0000000000..8928977897 --- /dev/null +++ b/include/chardev/char-mux.h @@ -0,0 +1,64 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_MUX_H +#define CHAR_MUX_H + +#include "chardev/char.h" +#include "chardev/char-fe.h" + +extern bool muxes_realized; + +#define MAX_MUX 4 +#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ +#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) +typedef struct MuxChardev { + Chardev parent; + CharBackend *backends[MAX_MUX]; + CharBackend chr; + int focus; + int mux_cnt; + int term_got_escape; + int max_size; + /* Intermediate input buffer catches escape sequences even if the + currently active device is not accepting any input - but only until it + is full as well. */ + unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; + int prod[MAX_MUX]; + int cons[MAX_MUX]; + int timestamps; + + /* Protected by the Chardev chr_write_lock. */ + int linestart; + int64_t timestamps_start; +} MuxChardev; + +#define MUX_CHARDEV(obj) OBJECT_CHECK(MuxChardev, (obj), TYPE_CHARDEV_MUX) +#define CHARDEV_IS_MUX(chr) \ + object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_MUX) + +void mux_chr_set_handlers(Chardev *chr, GMainContext *context); +void mux_set_focus(Chardev *chr, int focus); +void mux_chr_send_all_event(Chardev *chr, int event); + +#endif /* CHAR_MUX_H */ diff --git a/include/chardev/char-parallel.h b/include/chardev/char-parallel.h new file mode 100644 index 0000000000..3284a1b96b --- /dev/null +++ b/include/chardev/char-parallel.h @@ -0,0 +1,50 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_PARALLEL_H +#define CHAR_PARALLEL_H + +#include "chardev/char.h" + +#if defined(__linux__) || defined(__FreeBSD__) || \ + defined(__FreeBSD_kernel__) || defined(__DragonFly__) +#define HAVE_CHARDEV_PARPORT 1 +#endif + +#define CHR_IOCTL_PP_READ_DATA 3 +#define CHR_IOCTL_PP_WRITE_DATA 4 +#define CHR_IOCTL_PP_READ_CONTROL 5 +#define CHR_IOCTL_PP_WRITE_CONTROL 6 +#define CHR_IOCTL_PP_READ_STATUS 7 +#define CHR_IOCTL_PP_EPP_READ_ADDR 8 +#define CHR_IOCTL_PP_EPP_READ 9 +#define CHR_IOCTL_PP_EPP_WRITE_ADDR 10 +#define CHR_IOCTL_PP_EPP_WRITE 11 +#define CHR_IOCTL_PP_DATA_DIR 12 + +struct ParallelIOArg { + void *buffer; + int count; +}; + +#endif /* CHAR_PARALLEL_H */ diff --git a/include/chardev/char-serial.h b/include/chardev/char-serial.h new file mode 100644 index 0000000000..cb2e59e82a --- /dev/null +++ b/include/chardev/char-serial.h @@ -0,0 +1,57 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_SERIAL_H +#define CHAR_SERIAL_H + +#include "chardev/char.h" + +#ifdef _WIN32 +#define HAVE_CHARDEV_SERIAL 1 +#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ + || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ + || defined(__GLIBC__) +#define HAVE_CHARDEV_SERIAL 1 +#endif + +#define CHR_IOCTL_SERIAL_SET_PARAMS 1 +typedef struct { + int speed; + int parity; + int data_bits; + int stop_bits; +} QEMUSerialSetParams; + +#define CHR_IOCTL_SERIAL_SET_BREAK 2 + +#define CHR_IOCTL_SERIAL_SET_TIOCM 13 +#define CHR_IOCTL_SERIAL_GET_TIOCM 14 + +#define CHR_TIOCM_CTS 0x020 +#define CHR_TIOCM_CAR 0x040 +#define CHR_TIOCM_DSR 0x100 +#define CHR_TIOCM_RI 0x080 +#define CHR_TIOCM_DTR 0x002 +#define CHR_TIOCM_RTS 0x004 + +#endif diff --git a/include/chardev/char-win-stdio.h b/include/chardev/char-win-stdio.h new file mode 100644 index 0000000000..d7314f734d --- /dev/null +++ b/include/chardev/char-win-stdio.h @@ -0,0 +1,29 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_WIN_STDIO_H +#define CHAR_WIN_STDIO_H + +#define TYPE_CHARDEV_WIN_STDIO "chardev-win-stdio" + +#endif /* CHAR_WIN_STDIO_H */ diff --git a/include/chardev/char-win.h b/include/chardev/char-win.h new file mode 100644 index 0000000000..fa59e9e423 --- /dev/null +++ b/include/chardev/char-win.h @@ -0,0 +1,51 @@ +/* + * QEMU System Emulator + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef CHAR_WIN_H +#define CHAR_WIN_H + +#include "chardev/char.h" + +typedef struct { + Chardev parent; + + bool keep_open; /* console do not close file */ + HANDLE file, hrecv, hsend; + OVERLAPPED orecv; + BOOL fpipe; + + /* Protected by the Chardev chr_write_lock. */ + OVERLAPPED osend; +} WinChardev; + +#define NSENDBUF 2048 +#define NRECVBUF 2048 + +#define TYPE_CHARDEV_WIN "chardev-win" +#define WIN_CHARDEV(obj) OBJECT_CHECK(WinChardev, (obj), TYPE_CHARDEV_WIN) + +void win_chr_set_file(Chardev *chr, HANDLE file, bool keep_open); +int win_chr_serial_init(Chardev *chr, const char *filename, Error **errp); +int win_chr_pipe_poll(void *opaque); + +#endif /* CHAR_WIN_H */ diff --git a/include/chardev/char.h b/include/chardev/char.h new file mode 100644 index 0000000000..8a9ade4931 --- /dev/null +++ b/include/chardev/char.h @@ -0,0 +1,229 @@ +#ifndef QEMU_CHAR_H +#define QEMU_CHAR_H + +#include "qemu-common.h" +#include "qemu/option.h" +#include "qemu/main-loop.h" +#include "qemu/bitmap.h" +#include "qom/object.h" + +#define IAC_EOR 239 +#define IAC_SE 240 +#define IAC_NOP 241 +#define IAC_BREAK 243 +#define IAC_IP 244 +#define IAC_SB 250 +#define IAC 255 + +/* character device */ +typedef struct CharBackend CharBackend; + +typedef enum { + CHR_EVENT_BREAK, /* serial break char */ + CHR_EVENT_OPENED, /* new connection established */ + CHR_EVENT_MUX_IN, /* mux-focus was set to this terminal */ + CHR_EVENT_MUX_OUT, /* mux-focus will move on */ + CHR_EVENT_CLOSED /* connection closed */ +} QEMUChrEvent; + +#define CHR_READ_BUF_LEN 4096 + +typedef enum { + /* Whether the chardev peer is able to close and + * reopen the data channel, thus requiring support + * for qemu_chr_wait_connected() to wait for a + * valid connection */ + QEMU_CHAR_FEATURE_RECONNECTABLE, + /* Whether it is possible to send/recv file descriptors + * over the data channel */ + QEMU_CHAR_FEATURE_FD_PASS, + /* Whether replay or record mode is enabled */ + QEMU_CHAR_FEATURE_REPLAY, + + QEMU_CHAR_FEATURE_LAST, +} ChardevFeature; + +#define qemu_chr_replay(chr) qemu_chr_has_feature(chr, QEMU_CHAR_FEATURE_REPLAY) + +struct Chardev { + Object parent_obj; + + QemuMutex chr_write_lock; + CharBackend *be; + char *label; + char *filename; + int logfd; + int be_open; + GSource *gsource; + DECLARE_BITMAP(features, QEMU_CHAR_FEATURE_LAST); +}; + +/** + * @qemu_chr_new_from_opts: + * + * Create a new character backend from a QemuOpts list. + * + * @opts see qemu-config.c for a list of valid options + * + * Returns: a new character backend + */ +Chardev *qemu_chr_new_from_opts(QemuOpts *opts, + Error **errp); + +/** + * @qemu_chr_parse_common: + * + * Parse the common options available to all character backends. + * + * @opts the options that still need parsing + * @backend a new backend + */ +void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend); + +/** + * @qemu_chr_new: + * + * Create a new character backend from a URI. + * + * @label the name of the backend + * @filename the URI + * + * Returns: a new character backend + */ +Chardev *qemu_chr_new(const char *label, const char *filename); + +/** + * @qemu_chr_cleanup: + * + * Delete all chardevs (when leaving qemu) + */ +void qemu_chr_cleanup(void); + +/** + * @qemu_chr_new_noreplay: + * + * Create a new character backend from a URI. + * Character device communications are not written + * into the replay log. + * + * @label the name of the backend + * @filename the URI + * + * Returns: a new character backend + */ +Chardev *qemu_chr_new_noreplay(const char *label, const char *filename); + +/** + * @qemu_chr_be_can_write: + * + * Determine how much data the front end can currently accept. This function + * returns the number of bytes the front end can accept. If it returns 0, the + * front end cannot receive data at the moment. The function must be polled + * to determine when data can be received. + * + * Returns: the number of bytes the front end can receive via @qemu_chr_be_write + */ +int qemu_chr_be_can_write(Chardev *s); + +/** + * @qemu_chr_be_write: + * + * Write data from the back end to the front end. Before issuing this call, + * the caller should call @qemu_chr_be_can_write to determine how much data + * the front end can currently accept. + * + * @buf a buffer to receive data from the front end + * @len the number of bytes to receive from the front end + */ +void qemu_chr_be_write(Chardev *s, uint8_t *buf, int len); + +/** + * @qemu_chr_be_write_impl: + * + * Implementation of back end writing. Used by replay module. + * + * @buf a buffer to receive data from the front end + * @len the number of bytes to receive from the front end + */ +void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf, int len); + +/** + * @qemu_chr_be_event: + * + * Send an event from the back end to the front end. + * + * @event the event to send + */ +void qemu_chr_be_event(Chardev *s, int event); + +int qemu_chr_add_client(Chardev *s, int fd); +Chardev *qemu_chr_find(const char *name); + +bool qemu_chr_has_feature(Chardev *chr, + ChardevFeature feature); +void qemu_chr_set_feature(Chardev *chr, + ChardevFeature feature); +QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename); +int qemu_chr_write(Chardev *s, const uint8_t *buf, int len, bool write_all); +#define qemu_chr_write_all(s, buf, len) qemu_chr_write(s, buf, len, true) +int qemu_chr_wait_connected(Chardev *chr, Error **errp); + +#define TYPE_CHARDEV "chardev" +#define CHARDEV(obj) OBJECT_CHECK(Chardev, (obj), TYPE_CHARDEV) +#define CHARDEV_CLASS(klass) \ + OBJECT_CLASS_CHECK(ChardevClass, (klass), TYPE_CHARDEV) +#define CHARDEV_GET_CLASS(obj) \ + OBJECT_GET_CLASS(ChardevClass, (obj), TYPE_CHARDEV) + +#define TYPE_CHARDEV_NULL "chardev-null" +#define TYPE_CHARDEV_MUX "chardev-mux" +#define TYPE_CHARDEV_RINGBUF "chardev-ringbuf" +#define TYPE_CHARDEV_PTY "chardev-pty" +#define TYPE_CHARDEV_CONSOLE "chardev-console" +#define TYPE_CHARDEV_STDIO "chardev-stdio" +#define TYPE_CHARDEV_PIPE "chardev-pipe" +#define TYPE_CHARDEV_MEMORY "chardev-memory" +#define TYPE_CHARDEV_PARALLEL "chardev-parallel" +#define TYPE_CHARDEV_FILE "chardev-file" +#define TYPE_CHARDEV_SERIAL "chardev-serial" +#define TYPE_CHARDEV_SOCKET "chardev-socket" +#define TYPE_CHARDEV_UDP "chardev-udp" + +#define CHARDEV_IS_RINGBUF(chr) \ + object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_RINGBUF) +#define CHARDEV_IS_PTY(chr) \ + object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_PTY) + +typedef struct ChardevClass { + ObjectClass parent_class; + + bool internal; /* TODO: eventually use TYPE_USER_CREATABLE */ + void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp); + + void (*open)(Chardev *chr, ChardevBackend *backend, + bool *be_opened, Error **errp); + + int (*chr_write)(Chardev *s, const uint8_t *buf, int len); + int (*chr_sync_read)(Chardev *s, const uint8_t *buf, int len); + GSource *(*chr_add_watch)(Chardev *s, GIOCondition cond); + void (*chr_update_read_handler)(Chardev *s, GMainContext *context); + int (*chr_ioctl)(Chardev *s, int cmd, void *arg); + int (*get_msgfds)(Chardev *s, int* fds, int num); + int (*set_msgfds)(Chardev *s, int *fds, int num); + int (*chr_add_client)(Chardev *chr, int fd); + int (*chr_wait_connected)(Chardev *chr, Error **errp); + void (*chr_disconnect)(Chardev *chr); + void (*chr_accept_input)(Chardev *chr); + void (*chr_set_echo)(Chardev *chr, bool echo); + void (*chr_set_fe_open)(Chardev *chr, int fe_open); +} ChardevClass; + +Chardev *qemu_chardev_new(const char *id, const char *typename, + ChardevBackend *backend, Error **errp); + +extern int term_escape_char; + +/* console.c */ +void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp); + +#endif diff --git a/include/hw/char/bcm2835_aux.h b/include/hw/char/bcm2835_aux.h index 6865f154bc..cdbf7e3e37 100644 --- a/include/hw/char/bcm2835_aux.h +++ b/include/hw/char/bcm2835_aux.h @@ -9,7 +9,7 @@ #define BCM2835_AUX_H #include "hw/sysbus.h" -#include "sysemu/char.h" +#include "chardev/char-fe.h" #define TYPE_BCM2835_AUX "bcm2835-aux" #define BCM2835_AUX(obj) OBJECT_CHECK(BCM2835AuxState, (obj), TYPE_BCM2835_AUX) diff --git a/include/hw/char/cadence_uart.h b/include/hw/char/cadence_uart.h index c836db4b74..118e3f10de 100644 --- a/include/hw/char/cadence_uart.h +++ b/include/hw/char/cadence_uart.h @@ -19,7 +19,7 @@ #ifndef CADENCE_UART_H #include "hw/sysbus.h" -#include "sysemu/char.h" +#include "chardev/char-fe.h" #include "qemu/timer.h" #define CADENCE_UART_RX_FIFO_SIZE 16 diff --git a/include/hw/char/digic-uart.h b/include/hw/char/digic-uart.h index 340c8e1111..de9a3e3551 100644 --- a/include/hw/char/digic-uart.h +++ b/include/hw/char/digic-uart.h @@ -19,7 +19,7 @@ #define HW_CHAR_DIGIC_UART_H #include "hw/sysbus.h" -#include "sysemu/char.h" +#include "chardev/char-fe.h" #define TYPE_DIGIC_UART "digic-uart" #define DIGIC_UART(obj) \ diff --git a/include/hw/char/imx_serial.h b/include/hw/char/imx_serial.h index 4cc3fbc395..baeec3183f 100644 --- a/include/hw/char/imx_serial.h +++ b/include/hw/char/imx_serial.h @@ -19,7 +19,7 @@ #define IMX_SERIAL_H #include "hw/sysbus.h" -#include "sysemu/char.h" +#include "chardev/char-fe.h" #define TYPE_IMX_SERIAL "imx.serial" #define IMX_SERIAL(obj) OBJECT_CHECK(IMXSerialState, (obj), TYPE_IMX_SERIAL) diff --git a/include/hw/char/serial.h b/include/hw/char/serial.h index daebb076c2..c4daf11a14 100644 --- a/include/hw/char/serial.h +++ b/include/hw/char/serial.h @@ -28,10 +28,10 @@ #include "hw/hw.h" #include "sysemu/sysemu.h" -#include "sysemu/char.h" +#include "chardev/char-fe.h" #include "exec/memory.h" #include "qemu/fifo8.h" -#include "sysemu/char.h" +#include "chardev/char.h" #define UART_FIFO_LENGTH 16 /* 16550A Fifo Length */ diff --git a/include/hw/char/stm32f2xx_usart.h b/include/hw/char/stm32f2xx_usart.h index 3267523270..9d03a7527c 100644 --- a/include/hw/char/stm32f2xx_usart.h +++ b/include/hw/char/stm32f2xx_usart.h @@ -26,7 +26,7 @@ #define HW_STM32F2XX_USART_H #include "hw/sysbus.h" -#include "sysemu/char.h" +#include "chardev/char-fe.h" #include "hw/hw.h" #define USART_SR 0x00 diff --git a/include/sysemu/char.h b/include/sysemu/char.h deleted file mode 100644 index fffc0f40d4..0000000000 --- a/include/sysemu/char.h +++ /dev/null @@ -1,499 +0,0 @@ -#ifndef QEMU_CHAR_H -#define QEMU_CHAR_H - -#include "qemu-common.h" -#include "qemu/option.h" -#include "qemu/main-loop.h" -#include "qemu/bitmap.h" -#include "qom/object.h" - -#define IAC_EOR 239 -#define IAC_SE 240 -#define IAC_NOP 241 -#define IAC_BREAK 243 -#define IAC_IP 244 -#define IAC_SB 250 -#define IAC 255 - -/* character device */ - -typedef enum { - CHR_EVENT_BREAK, /* serial break char */ - CHR_EVENT_OPENED, /* new connection established */ - CHR_EVENT_MUX_IN, /* mux-focus was set to this terminal */ - CHR_EVENT_MUX_OUT, /* mux-focus will move on */ - CHR_EVENT_CLOSED /* connection closed */ -} QEMUChrEvent; - -#define CHR_READ_BUF_LEN 4096 - -#define CHR_IOCTL_SERIAL_SET_PARAMS 1 -typedef struct { - int speed; - int parity; - int data_bits; - int stop_bits; -} QEMUSerialSetParams; - -#define CHR_IOCTL_SERIAL_SET_BREAK 2 - -#define CHR_IOCTL_PP_READ_DATA 3 -#define CHR_IOCTL_PP_WRITE_DATA 4 -#define CHR_IOCTL_PP_READ_CONTROL 5 -#define CHR_IOCTL_PP_WRITE_CONTROL 6 -#define CHR_IOCTL_PP_READ_STATUS 7 -#define CHR_IOCTL_PP_EPP_READ_ADDR 8 -#define CHR_IOCTL_PP_EPP_READ 9 -#define CHR_IOCTL_PP_EPP_WRITE_ADDR 10 -#define CHR_IOCTL_PP_EPP_WRITE 11 -#define CHR_IOCTL_PP_DATA_DIR 12 - -struct ParallelIOArg { - void *buffer; - int count; -}; - -#define CHR_IOCTL_SERIAL_SET_TIOCM 13 -#define CHR_IOCTL_SERIAL_GET_TIOCM 14 - -#define CHR_TIOCM_CTS 0x020 -#define CHR_TIOCM_CAR 0x040 -#define CHR_TIOCM_DSR 0x100 -#define CHR_TIOCM_RI 0x080 -#define CHR_TIOCM_DTR 0x002 -#define CHR_TIOCM_RTS 0x004 - -typedef void IOEventHandler(void *opaque, int event); - -typedef enum { - /* Whether the chardev peer is able to close and - * reopen the data channel, thus requiring support - * for qemu_chr_wait_connected() to wait for a - * valid connection */ - QEMU_CHAR_FEATURE_RECONNECTABLE, - /* Whether it is possible to send/recv file descriptors - * over the data channel */ - QEMU_CHAR_FEATURE_FD_PASS, - /* Whether replay or record mode is enabled */ - QEMU_CHAR_FEATURE_REPLAY, - - QEMU_CHAR_FEATURE_LAST, -} ChardevFeature; - -/* This is the backend as seen by frontend, the actual backend is - * Chardev */ -typedef struct CharBackend { - Chardev *chr; - IOEventHandler *chr_event; - IOCanReadHandler *chr_can_read; - IOReadHandler *chr_read; - void *opaque; - int tag; - int fe_open; -} CharBackend; - -struct Chardev { - Object parent_obj; - - QemuMutex chr_write_lock; - CharBackend *be; - char *label; - char *filename; - int logfd; - int be_open; - GSource *gsource; - DECLARE_BITMAP(features, QEMU_CHAR_FEATURE_LAST); -}; - -/** - * @qemu_chr_new_from_opts: - * - * Create a new character backend from a QemuOpts list. - * - * @opts see qemu-config.c for a list of valid options - * - * Returns: a new character backend - */ -Chardev *qemu_chr_new_from_opts(QemuOpts *opts, - Error **errp); - -/** - * @qemu_chr_parse_common: - * - * Parse the common options available to all character backends. - * - * @opts the options that still need parsing - * @backend a new backend - */ -void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend); - -/** - * @qemu_chr_new: - * - * Create a new character backend from a URI. - * - * @label the name of the backend - * @filename the URI - * - * Returns: a new character backend - */ -Chardev *qemu_chr_new(const char *label, const char *filename); - - -/** - * @qemu_chr_fe_disconnect: - * - * Close a fd accpeted by character backend. - * Without associated Chardev, do nothing. - */ -void qemu_chr_fe_disconnect(CharBackend *be); - -/** - * @qemu_chr_cleanup: - * - * Delete all chardevs (when leaving qemu) - */ -void qemu_chr_cleanup(void); - -/** - * @qemu_chr_fe_wait_connected: - * - * Wait for characted backend to be connected, return < 0 on error or - * if no assicated Chardev. - */ -int qemu_chr_fe_wait_connected(CharBackend *be, Error **errp); - -/** - * @qemu_chr_new_noreplay: - * - * Create a new character backend from a URI. - * Character device communications are not written - * into the replay log. - * - * @label the name of the backend - * @filename the URI - * - * Returns: a new character backend - */ -Chardev *qemu_chr_new_noreplay(const char *label, const char *filename); - -/** - * @qemu_chr_fe_set_echo: - * - * Ask the backend to override its normal echo setting. This only really - * applies to the stdio backend and is used by the QMP server such that you - * can see what you type if you try to type QMP commands. - * Without associated Chardev, do nothing. - * - * @echo true to enable echo, false to disable echo - */ -void qemu_chr_fe_set_echo(CharBackend *be, bool echo); - -/** - * @qemu_chr_fe_set_open: - * - * Set character frontend open status. This is an indication that the - * front end is ready (or not) to begin doing I/O. - * Without associated Chardev, do nothing. - */ -void qemu_chr_fe_set_open(CharBackend *be, int fe_open); - -/** - * @qemu_chr_fe_printf: - * - * Write to a character backend using a printf style interface. This - * function is thread-safe. It does nothing without associated - * Chardev. - * - * @fmt see #printf - */ -void qemu_chr_fe_printf(CharBackend *be, const char *fmt, ...) - GCC_FMT_ATTR(2, 3); - -/** - * @qemu_chr_fe_add_watch: - * - * If the backend is connected, create and add a #GSource that fires - * when the given condition (typically G_IO_OUT|G_IO_HUP or G_IO_HUP) - * is active; return the #GSource's tag. If it is disconnected, - * or without associated Chardev, return 0. - * - * @cond the condition to poll for - * @func the function to call when the condition happens - * @user_data the opaque pointer to pass to @func - * - * Returns: the source tag - */ -guint qemu_chr_fe_add_watch(CharBackend *be, GIOCondition cond, - GIOFunc func, void *user_data); - -/** - * @qemu_chr_fe_write: - * - * Write data to a character backend from the front end. This function - * will send data from the front end to the back end. This function - * is thread-safe. - * - * @buf the data - * @len the number of bytes to send - * - * Returns: the number of bytes consumed (0 if no assicated Chardev) - */ -int qemu_chr_fe_write(CharBackend *be, const uint8_t *buf, int len); - -/** - * @qemu_chr_fe_write_all: - * - * Write data to a character backend from the front end. This function will - * send data from the front end to the back end. Unlike @qemu_chr_fe_write, - * this function will block if the back end cannot consume all of the data - * attempted to be written. This function is thread-safe. - * - * @buf the data - * @len the number of bytes to send - * - * Returns: the number of bytes consumed (0 if no assicated Chardev) - */ -int qemu_chr_fe_write_all(CharBackend *be, const uint8_t *buf, int len); - -/** - * @qemu_chr_fe_read_all: - * - * Read data to a buffer from the back end. - * - * @buf the data buffer - * @len the number of bytes to read - * - * Returns: the number of bytes read (0 if no assicated Chardev) - */ -int qemu_chr_fe_read_all(CharBackend *be, uint8_t *buf, int len); - -/** - * @qemu_chr_fe_ioctl: - * - * Issue a device specific ioctl to a backend. This function is thread-safe. - * - * @cmd see CHR_IOCTL_* - * @arg the data associated with @cmd - * - * Returns: if @cmd is not supported by the backend or there is no - * associated Chardev, -ENOTSUP, otherwise the return - * value depends on the semantics of @cmd - */ -int qemu_chr_fe_ioctl(CharBackend *be, int cmd, void *arg); - -/** - * @qemu_chr_fe_get_msgfd: - * - * For backends capable of fd passing, return the latest file descriptor passed - * by a client. - * - * Returns: -1 if fd passing isn't supported or there is no pending file - * descriptor. If a file descriptor is returned, subsequent calls to - * this function will return -1 until a client sends a new file - * descriptor. - */ -int qemu_chr_fe_get_msgfd(CharBackend *be); - -/** - * @qemu_chr_fe_get_msgfds: - * - * For backends capable of fd passing, return the number of file received - * descriptors and fills the fds array up to num elements - * - * Returns: -1 if fd passing isn't supported or there are no pending file - * descriptors. If file descriptors are returned, subsequent calls to - * this function will return -1 until a client sends a new set of file - * descriptors. - */ -int qemu_chr_fe_get_msgfds(CharBackend *be, int *fds, int num); - -/** - * @qemu_chr_fe_set_msgfds: - * - * For backends capable of fd passing, set an array of fds to be passed with - * the next send operation. - * A subsequent call to this function before calling a write function will - * result in overwriting the fd array with the new value without being send. - * Upon writing the message the fd array is freed. - * - * Returns: -1 if fd passing isn't supported or no associated Chardev. - */ -int qemu_chr_fe_set_msgfds(CharBackend *be, int *fds, int num); - -/** - * @qemu_chr_be_can_write: - * - * Determine how much data the front end can currently accept. This function - * returns the number of bytes the front end can accept. If it returns 0, the - * front end cannot receive data at the moment. The function must be polled - * to determine when data can be received. - * - * Returns: the number of bytes the front end can receive via @qemu_chr_be_write - */ -int qemu_chr_be_can_write(Chardev *s); - -/** - * @qemu_chr_be_write: - * - * Write data from the back end to the front end. Before issuing this call, - * the caller should call @qemu_chr_be_can_write to determine how much data - * the front end can currently accept. - * - * @buf a buffer to receive data from the front end - * @len the number of bytes to receive from the front end - */ -void qemu_chr_be_write(Chardev *s, uint8_t *buf, int len); - -/** - * @qemu_chr_be_write_impl: - * - * Implementation of back end writing. Used by replay module. - * - * @buf a buffer to receive data from the front end - * @len the number of bytes to receive from the front end - */ -void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf, int len); - -/** - * @qemu_chr_be_event: - * - * Send an event from the back end to the front end. - * - * @event the event to send - */ -void qemu_chr_be_event(Chardev *s, int event); - -/** - * @qemu_chr_fe_init: - * - * Initializes a front end for the given CharBackend and - * Chardev. Call qemu_chr_fe_deinit() to remove the association and - * release the driver. - * - * Returns: false on error. - */ -bool qemu_chr_fe_init(CharBackend *b, Chardev *s, Error **errp); - -/** - * @qemu_chr_fe_get_driver: - * - * Returns the driver associated with a CharBackend or NULL if no - * associated Chardev. - */ -Chardev *qemu_chr_fe_get_driver(CharBackend *be); - -/** - * @qemu_chr_fe_deinit: - * - * Dissociate the CharBackend from the Chardev. - * - * Safe to call without associated Chardev. - */ -void qemu_chr_fe_deinit(CharBackend *b); - -/** - * @qemu_chr_fe_set_handlers: - * @b: a CharBackend - * @fd_can_read: callback to get the amount of data the frontend may - * receive - * @fd_read: callback to receive data from char - * @fd_event: event callback - * @opaque: an opaque pointer for the callbacks - * @context: a main loop context or NULL for the default - * @set_open: whether to call qemu_chr_fe_set_open() implicitely when - * any of the handler is non-NULL - * - * Set the front end char handlers. The front end takes the focus if - * any of the handler is non-NULL. - * - * Without associated Chardev, nothing is changed. - */ -void qemu_chr_fe_set_handlers(CharBackend *b, - IOCanReadHandler *fd_can_read, - IOReadHandler *fd_read, - IOEventHandler *fd_event, - void *opaque, - GMainContext *context, - bool set_open); - -/** - * @qemu_chr_fe_take_focus: - * - * Take the focus (if the front end is muxed). - * - * Without associated Chardev, nothing is changed. - */ -void qemu_chr_fe_take_focus(CharBackend *b); - -void qemu_chr_fe_accept_input(CharBackend *be); -int qemu_chr_add_client(Chardev *s, int fd); -Chardev *qemu_chr_find(const char *name); - -bool qemu_chr_has_feature(Chardev *chr, - ChardevFeature feature); -void qemu_chr_set_feature(Chardev *chr, - ChardevFeature feature); -QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename); -int qemu_chr_write_all(Chardev *s, const uint8_t *buf, int len); -int qemu_chr_wait_connected(Chardev *chr, Error **errp); - -#define TYPE_CHARDEV "chardev" -#define CHARDEV(obj) OBJECT_CHECK(Chardev, (obj), TYPE_CHARDEV) -#define CHARDEV_CLASS(klass) \ - OBJECT_CLASS_CHECK(ChardevClass, (klass), TYPE_CHARDEV) -#define CHARDEV_GET_CLASS(obj) \ - OBJECT_GET_CLASS(ChardevClass, (obj), TYPE_CHARDEV) - -#define TYPE_CHARDEV_NULL "chardev-null" -#define TYPE_CHARDEV_MUX "chardev-mux" -#define TYPE_CHARDEV_RINGBUF "chardev-ringbuf" -#define TYPE_CHARDEV_PTY "chardev-pty" -#define TYPE_CHARDEV_CONSOLE "chardev-console" -#define TYPE_CHARDEV_STDIO "chardev-stdio" -#define TYPE_CHARDEV_PIPE "chardev-pipe" -#define TYPE_CHARDEV_MEMORY "chardev-memory" -#define TYPE_CHARDEV_PARALLEL "chardev-parallel" -#define TYPE_CHARDEV_FILE "chardev-file" -#define TYPE_CHARDEV_SERIAL "chardev-serial" -#define TYPE_CHARDEV_SOCKET "chardev-socket" -#define TYPE_CHARDEV_UDP "chardev-udp" - -#define CHARDEV_IS_RINGBUF(chr) \ - object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_RINGBUF) -#define CHARDEV_IS_PTY(chr) \ - object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_PTY) - -typedef struct ChardevClass { - ObjectClass parent_class; - - bool internal; /* TODO: eventually use TYPE_USER_CREATABLE */ - void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp); - - void (*open)(Chardev *chr, ChardevBackend *backend, - bool *be_opened, Error **errp); - - int (*chr_write)(Chardev *s, const uint8_t *buf, int len); - int (*chr_sync_read)(Chardev *s, const uint8_t *buf, int len); - GSource *(*chr_add_watch)(Chardev *s, GIOCondition cond); - void (*chr_update_read_handler)(Chardev *s, GMainContext *context); - int (*chr_ioctl)(Chardev *s, int cmd, void *arg); - int (*get_msgfds)(Chardev *s, int* fds, int num); - int (*set_msgfds)(Chardev *s, int *fds, int num); - int (*chr_add_client)(Chardev *chr, int fd); - int (*chr_wait_connected)(Chardev *chr, Error **errp); - void (*chr_disconnect)(Chardev *chr); - void (*chr_accept_input)(Chardev *chr); - void (*chr_set_echo)(Chardev *chr, bool echo); - void (*chr_set_fe_open)(Chardev *chr, int fe_open); -} ChardevClass; - -Chardev *qemu_chardev_new(const char *id, const char *typename, - ChardevBackend *backend, Error **errp); - -extern int term_escape_char; - -/* console.c */ -void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp); - -#endif |