From 2b2f23dae76348abb57e7e11899b9dd5d461fa98 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Mon, 12 Dec 2016 19:48:49 +0300 Subject: [PATCH] char: move serial chardev to its own file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Marc-André Lureau Acked-by: Eric Blake --- chardev/Makefile.objs | 1 + chardev/char-serial.c | 318 ++++++++++++++++++++++++++++++++++++++++++ chardev/char-serial.h | 35 +++++ chardev/char.c | 278 +----------------------------------- 4 files changed, 356 insertions(+), 276 deletions(-) create mode 100644 chardev/char-serial.c create mode 100644 chardev/char-serial.h diff --git a/chardev/Makefile.objs b/chardev/Makefile.objs index b2c14fe795..45fc8af0c4 100644 --- a/chardev/Makefile.objs +++ b/chardev/Makefile.objs @@ -8,6 +8,7 @@ chardev-obj-y += char-null.o chardev-obj-y += char-pipe.o chardev-obj-$(CONFIG_POSIX) += char-pty.o chardev-obj-y += char-ringbuf.o +chardev-obj-y += char-serial.o chardev-obj-y += char-socket.o chardev-obj-y += char-stdio.o chardev-obj-y += char-udp.o diff --git a/chardev/char-serial.c b/chardev/char-serial.c new file mode 100644 index 0000000000..094e08dca5 --- /dev/null +++ b/chardev/char-serial.c @@ -0,0 +1,318 @@ +/* + * 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. + */ +#include "qemu/osdep.h" +#include "qemu/sockets.h" +#include "io/channel-file.h" +#include "qapi/error.h" + +#ifdef _WIN32 +#include "char-win.h" +#else +#include +#include +#include "char-fd.h" +#endif + +#include "char-serial.h" + +#ifdef _WIN32 + +static void qmp_chardev_open_serial(Chardev *chr, + ChardevBackend *backend, + bool *be_opened, + Error **errp) +{ + ChardevHostdev *serial = backend->u.serial.data; + + win_chr_init(chr, serial->device, errp); +} + +#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ + || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ + || defined(__GLIBC__) + +static void tty_serial_init(int fd, int speed, + int parity, int data_bits, int stop_bits) +{ + struct termios tty; + speed_t spd; + +#if 0 + printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n", + speed, parity, data_bits, stop_bits); +#endif + tcgetattr(fd, &tty); + +#define check_speed(val) if (speed <= val) { spd = B##val; break; } + speed = speed * 10 / 11; + do { + check_speed(50); + check_speed(75); + check_speed(110); + check_speed(134); + check_speed(150); + check_speed(200); + check_speed(300); + check_speed(600); + check_speed(1200); + check_speed(1800); + check_speed(2400); + check_speed(4800); + check_speed(9600); + check_speed(19200); + check_speed(38400); + /* Non-Posix values follow. They may be unsupported on some systems. */ + check_speed(57600); + check_speed(115200); +#ifdef B230400 + check_speed(230400); +#endif +#ifdef B460800 + check_speed(460800); +#endif +#ifdef B500000 + check_speed(500000); +#endif +#ifdef B576000 + check_speed(576000); +#endif +#ifdef B921600 + check_speed(921600); +#endif +#ifdef B1000000 + check_speed(1000000); +#endif +#ifdef B1152000 + check_speed(1152000); +#endif +#ifdef B1500000 + check_speed(1500000); +#endif +#ifdef B2000000 + check_speed(2000000); +#endif +#ifdef B2500000 + check_speed(2500000); +#endif +#ifdef B3000000 + check_speed(3000000); +#endif +#ifdef B3500000 + check_speed(3500000); +#endif +#ifdef B4000000 + check_speed(4000000); +#endif + spd = B115200; + } while (0); + + cfsetispeed(&tty, spd); + cfsetospeed(&tty, spd); + + tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP + | INLCR | IGNCR | ICRNL | IXON); + tty.c_oflag |= OPOST; + tty.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN | ISIG); + tty.c_cflag &= ~(CSIZE | PARENB | PARODD | CRTSCTS | CSTOPB); + switch (data_bits) { + default: + case 8: + tty.c_cflag |= CS8; + break; + case 7: + tty.c_cflag |= CS7; + break; + case 6: + tty.c_cflag |= CS6; + break; + case 5: + tty.c_cflag |= CS5; + break; + } + switch (parity) { + default: + case 'N': + break; + case 'E': + tty.c_cflag |= PARENB; + break; + case 'O': + tty.c_cflag |= PARENB | PARODD; + break; + } + if (stop_bits == 2) { + tty.c_cflag |= CSTOPB; + } + + tcsetattr(fd, TCSANOW, &tty); +} + +static int tty_serial_ioctl(Chardev *chr, int cmd, void *arg) +{ + FDChardev *s = FD_CHARDEV(chr); + QIOChannelFile *fioc = QIO_CHANNEL_FILE(s->ioc_in); + + switch (cmd) { + case CHR_IOCTL_SERIAL_SET_PARAMS: + { + QEMUSerialSetParams *ssp = arg; + tty_serial_init(fioc->fd, + ssp->speed, ssp->parity, + ssp->data_bits, ssp->stop_bits); + } + break; + case CHR_IOCTL_SERIAL_SET_BREAK: + { + int enable = *(int *)arg; + if (enable) { + tcsendbreak(fioc->fd, 1); + } + } + break; + case CHR_IOCTL_SERIAL_GET_TIOCM: + { + int sarg = 0; + int *targ = (int *)arg; + ioctl(fioc->fd, TIOCMGET, &sarg); + *targ = 0; + if (sarg & TIOCM_CTS) { + *targ |= CHR_TIOCM_CTS; + } + if (sarg & TIOCM_CAR) { + *targ |= CHR_TIOCM_CAR; + } + if (sarg & TIOCM_DSR) { + *targ |= CHR_TIOCM_DSR; + } + if (sarg & TIOCM_RI) { + *targ |= CHR_TIOCM_RI; + } + if (sarg & TIOCM_DTR) { + *targ |= CHR_TIOCM_DTR; + } + if (sarg & TIOCM_RTS) { + *targ |= CHR_TIOCM_RTS; + } + } + break; + case CHR_IOCTL_SERIAL_SET_TIOCM: + { + int sarg = *(int *)arg; + int targ = 0; + ioctl(fioc->fd, TIOCMGET, &targ); + targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR + | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); + if (sarg & CHR_TIOCM_CTS) { + targ |= TIOCM_CTS; + } + if (sarg & CHR_TIOCM_CAR) { + targ |= TIOCM_CAR; + } + if (sarg & CHR_TIOCM_DSR) { + targ |= TIOCM_DSR; + } + if (sarg & CHR_TIOCM_RI) { + targ |= TIOCM_RI; + } + if (sarg & CHR_TIOCM_DTR) { + targ |= TIOCM_DTR; + } + if (sarg & CHR_TIOCM_RTS) { + targ |= TIOCM_RTS; + } + ioctl(fioc->fd, TIOCMSET, &targ); + } + break; + default: + return -ENOTSUP; + } + return 0; +} + +static void qmp_chardev_open_serial(Chardev *chr, + ChardevBackend *backend, + bool *be_opened, + Error **errp) +{ + ChardevHostdev *serial = backend->u.serial.data; + int fd; + + fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); + if (fd < 0) { + return; + } + qemu_set_nonblock(fd); + tty_serial_init(fd, 115200, 'N', 8, 1); + + qemu_chr_open_fd(chr, fd, fd); +} +#endif /* __linux__ || __sun__ */ + +#ifdef HAVE_CHARDEV_SERIAL +static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, + Error **errp) +{ + const char *device = qemu_opt_get(opts, "path"); + ChardevHostdev *serial; + + if (device == NULL) { + error_setg(errp, "chardev: serial/tty: no device path given"); + return; + } + backend->type = CHARDEV_BACKEND_KIND_SERIAL; + serial = backend->u.serial.data = g_new0(ChardevHostdev, 1); + qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(serial)); + serial->device = g_strdup(device); +} + +static void char_serial_class_init(ObjectClass *oc, void *data) +{ + ChardevClass *cc = CHARDEV_CLASS(oc); + + cc->parse = qemu_chr_parse_serial; + cc->open = qmp_chardev_open_serial; +#ifndef _WIN32 + cc->chr_ioctl = tty_serial_ioctl; +#endif +} + + +static const TypeInfo char_serial_type_info = { + .name = TYPE_CHARDEV_SERIAL, +#ifdef _WIN32 + .parent = TYPE_CHARDEV_WIN, +#else + .parent = TYPE_CHARDEV_FD, +#endif + .class_init = char_serial_class_init, +}; + +static void register_types(void) +{ + type_register_static(&char_serial_type_info); +} + +type_init(register_types); + +#endif diff --git a/chardev/char-serial.h b/chardev/char-serial.h new file mode 100644 index 0000000000..64a27f63b1 --- /dev/null +++ b/chardev/char-serial.h @@ -0,0 +1,35 @@ +/* + * 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 + +#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 + +#endif diff --git a/chardev/char.c b/chardev/char.c index 6d4cb7c71e..faba68db21 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -36,7 +36,6 @@ #include "qapi-visit.h" #include "qemu/base64.h" #include "io/channel-socket.h" -#include "io/channel-file.h" #include "io/channel-tls.h" #include "sysemu/replay.h" #include "qemu/help_option.h" @@ -46,7 +45,6 @@ #ifndef _WIN32 #include #include -#include #include #include #include @@ -91,6 +89,7 @@ #ifdef _WIN32 #include "char-win.h" #endif +#include "char-serial.h" /***********************************************************/ /* character device */ @@ -656,198 +655,6 @@ void qemu_chr_fe_take_focus(CharBackend *b) #ifndef _WIN32 -#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ - || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ - || defined(__GLIBC__) - -#define HAVE_CHARDEV_SERIAL 1 - -static void tty_serial_init(int fd, int speed, - int parity, int data_bits, int stop_bits) -{ - struct termios tty; - speed_t spd; - -#if 0 - printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n", - speed, parity, data_bits, stop_bits); -#endif - tcgetattr (fd, &tty); - -#define check_speed(val) if (speed <= val) { spd = B##val; break; } - speed = speed * 10 / 11; - do { - check_speed(50); - check_speed(75); - check_speed(110); - check_speed(134); - check_speed(150); - check_speed(200); - check_speed(300); - check_speed(600); - check_speed(1200); - check_speed(1800); - check_speed(2400); - check_speed(4800); - check_speed(9600); - check_speed(19200); - check_speed(38400); - /* Non-Posix values follow. They may be unsupported on some systems. */ - check_speed(57600); - check_speed(115200); -#ifdef B230400 - check_speed(230400); -#endif -#ifdef B460800 - check_speed(460800); -#endif -#ifdef B500000 - check_speed(500000); -#endif -#ifdef B576000 - check_speed(576000); -#endif -#ifdef B921600 - check_speed(921600); -#endif -#ifdef B1000000 - check_speed(1000000); -#endif -#ifdef B1152000 - check_speed(1152000); -#endif -#ifdef B1500000 - check_speed(1500000); -#endif -#ifdef B2000000 - check_speed(2000000); -#endif -#ifdef B2500000 - check_speed(2500000); -#endif -#ifdef B3000000 - check_speed(3000000); -#endif -#ifdef B3500000 - check_speed(3500000); -#endif -#ifdef B4000000 - check_speed(4000000); -#endif - spd = B115200; - } while (0); - - cfsetispeed(&tty, spd); - cfsetospeed(&tty, spd); - - tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP - |INLCR|IGNCR|ICRNL|IXON); - tty.c_oflag |= OPOST; - tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); - tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); - switch(data_bits) { - default: - case 8: - tty.c_cflag |= CS8; - break; - case 7: - tty.c_cflag |= CS7; - break; - case 6: - tty.c_cflag |= CS6; - break; - case 5: - tty.c_cflag |= CS5; - break; - } - switch(parity) { - default: - case 'N': - break; - case 'E': - tty.c_cflag |= PARENB; - break; - case 'O': - tty.c_cflag |= PARENB | PARODD; - break; - } - if (stop_bits == 2) - tty.c_cflag |= CSTOPB; - - tcsetattr (fd, TCSANOW, &tty); -} - -static int tty_serial_ioctl(Chardev *chr, int cmd, void *arg) -{ - FDChardev *s = FD_CHARDEV(chr); - QIOChannelFile *fioc = QIO_CHANNEL_FILE(s->ioc_in); - - switch(cmd) { - case CHR_IOCTL_SERIAL_SET_PARAMS: - { - QEMUSerialSetParams *ssp = arg; - tty_serial_init(fioc->fd, - ssp->speed, ssp->parity, - ssp->data_bits, ssp->stop_bits); - } - break; - case CHR_IOCTL_SERIAL_SET_BREAK: - { - int enable = *(int *)arg; - if (enable) { - tcsendbreak(fioc->fd, 1); - } - } - break; - case CHR_IOCTL_SERIAL_GET_TIOCM: - { - int sarg = 0; - int *targ = (int *)arg; - ioctl(fioc->fd, TIOCMGET, &sarg); - *targ = 0; - if (sarg & TIOCM_CTS) - *targ |= CHR_TIOCM_CTS; - if (sarg & TIOCM_CAR) - *targ |= CHR_TIOCM_CAR; - if (sarg & TIOCM_DSR) - *targ |= CHR_TIOCM_DSR; - if (sarg & TIOCM_RI) - *targ |= CHR_TIOCM_RI; - if (sarg & TIOCM_DTR) - *targ |= CHR_TIOCM_DTR; - if (sarg & TIOCM_RTS) - *targ |= CHR_TIOCM_RTS; - } - break; - case CHR_IOCTL_SERIAL_SET_TIOCM: - { - int sarg = *(int *)arg; - int targ = 0; - ioctl(fioc->fd, TIOCMGET, &targ); - targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR - | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); - if (sarg & CHR_TIOCM_CTS) - targ |= TIOCM_CTS; - if (sarg & CHR_TIOCM_CAR) - targ |= TIOCM_CAR; - if (sarg & CHR_TIOCM_DSR) - targ |= TIOCM_DSR; - if (sarg & CHR_TIOCM_RI) - targ |= TIOCM_RI; - if (sarg & CHR_TIOCM_DTR) - targ |= TIOCM_DTR; - if (sarg & CHR_TIOCM_RTS) - targ |= TIOCM_RTS; - ioctl(fioc->fd, TIOCMSET, &targ); - } - break; - default: - return -ENOTSUP; - } - return 0; -} -#endif /* __linux__ || __sun__ */ - #if defined(__linux__) #define HAVE_CHARDEV_PARPORT 1 @@ -1036,10 +843,6 @@ static void qemu_chr_open_pp_fd(Chardev *chr, } #endif -#else /* _WIN32 */ - -#define HAVE_CHARDEV_SERIAL 1 - #endif /* !_WIN32 */ int qemu_chr_wait_connected(Chardev *chr, Error **errp) @@ -1216,24 +1019,6 @@ void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend) backend->logappend = qemu_opt_get_bool(opts, "logappend", false); } -#ifdef HAVE_CHARDEV_SERIAL -static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, - Error **errp) -{ - const char *device = qemu_opt_get(opts, "path"); - ChardevHostdev *serial; - - backend->type = CHARDEV_BACKEND_KIND_SERIAL; - if (device == NULL) { - error_setg(errp, "chardev: serial/tty: no device path given"); - return; - } - serial = backend->u.serial.data = g_new0(ChardevHostdev, 1); - qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(serial)); - serial->device = g_strdup(device); -} -#endif - #ifdef HAVE_CHARDEV_PARPORT static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend, Error **errp) @@ -1699,39 +1484,7 @@ QemuOptsList qemu_chardev_opts = { }, }; -#ifdef _WIN32 - -static void qmp_chardev_open_serial(Chardev *chr, - ChardevBackend *backend, - bool *be_opened, - Error **errp) -{ - ChardevHostdev *serial = backend->u.serial.data; - - win_chr_init(chr, serial->device, errp); -} - -#else /* WIN32 */ - -#ifdef HAVE_CHARDEV_SERIAL -static void qmp_chardev_open_serial(Chardev *chr, - ChardevBackend *backend, - bool *be_opened, - Error **errp) -{ - ChardevHostdev *serial = backend->u.serial.data; - int fd; - - fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); - if (fd < 0) { - return; - } - qemu_set_nonblock(fd); - tty_serial_init(fd, 115200, 'N', 8, 1); - - qemu_chr_open_fd(chr, fd, fd); -} -#endif +#ifndef _WIN32 #ifdef HAVE_CHARDEV_PARPORT static void qmp_chardev_open_parallel(Chardev *chr, @@ -1789,30 +1542,6 @@ static const TypeInfo char_parallel_type_info = { #endif /* WIN32 */ -#ifdef HAVE_CHARDEV_SERIAL - -static void char_serial_class_init(ObjectClass *oc, void *data) -{ - ChardevClass *cc = CHARDEV_CLASS(oc); - - cc->parse = qemu_chr_parse_serial; - cc->open = qmp_chardev_open_serial; -#ifndef _WIN32 - cc->chr_ioctl = tty_serial_ioctl; -#endif -} - -static const TypeInfo char_serial_type_info = { - .name = TYPE_CHARDEV_SERIAL, -#ifdef _WIN32 - .parent = TYPE_CHARDEV_WIN, -#else - .parent = TYPE_CHARDEV_FD, -#endif - .class_init = char_serial_class_init, -}; -#endif - bool qemu_chr_has_feature(Chardev *chr, ChardevFeature feature) { @@ -1914,9 +1643,6 @@ void qemu_chr_cleanup(void) static void register_types(void) { type_register_static(&char_type_info); -#ifdef HAVE_CHARDEV_SERIAL - type_register_static(&char_serial_type_info); -#endif #ifdef HAVE_CHARDEV_PARPORT type_register_static(&char_parallel_type_info); #endif