haraldwolff/qemu-patch-raspberry4
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chardev: add pipe support to qapi

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This patch adds 'pipe' support to qapi and also switches over the
pipe chardev initialization to the new qapi code path.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2013-02-25 11:50:55 +01:00
parent d9ac374f0d
commit 548cbb36f4
2 changed files with 24 additions and 10 deletions
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3
qapi-schema.json
View file

@ -3153,7 +3153,7 @@
##
# @ChardevHostdev:
#
# Configuration info for device chardevs.
# Configuration info for device and pipe chardevs.
#
# @device: The name of the special file for the device,
# i.e. /dev/ttyS0 on Unix or COM1: on Windows
@ -3220,6 +3220,7 @@
{ 'union': 'ChardevBackend', 'data': { 'file' : 'ChardevFile',
'serial' : 'ChardevHostdev',
'parallel': 'ChardevHostdev',
'pipe' : 'ChardevHostdev',
'socket' : 'ChardevSocket',
'pty' : 'ChardevDummy',
'null' : 'ChardevDummy',

31
qemu-char.c
View file

@ -841,11 +841,11 @@ static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
return chr;
}
static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
{
int fd_in, fd_out;
char filename_in[256], filename_out[256];
const char *filename = qemu_opt_get(opts, "path");
const char *filename = opts->device;
if (filename == NULL) {
fprintf(stderr, "chardev: pipe: no filename given\n");
@ -1917,9 +1917,9 @@ static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
}
static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
{
const char *filename = qemu_opt_get(opts, "path");
const char *filename = opts->device;
CharDriverState *chr;
WinCharState *s;
@ -3188,6 +3188,19 @@ static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
backend->parallel->device = g_strdup(device);
}
static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
Error **errp)
{
const char *device = qemu_opt_get(opts, "path");
if (device == NULL) {
error_setg(errp, "chardev: pipe: no device path given");
return;
}
backend->pipe = g_new0(ChardevHostdev, 1);
backend->pipe->device = g_strdup(device);
}
typedef struct CharDriver {
const char *name;
/* old, pre qapi */
@ -3677,6 +3690,9 @@ ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
case CHARDEV_BACKEND_KIND_PARALLEL:
chr = qmp_chardev_open_parallel(backend->parallel, errp);
break;
case CHARDEV_BACKEND_KIND_PIPE:
chr = qemu_chr_open_pipe(backend->pipe);
break;
case CHARDEV_BACKEND_KIND_SOCKET:
chr = qmp_chardev_open_socket(backend->socket, errp);
break;
@ -3770,11 +3786,8 @@ static void register_types(void)
qemu_chr_parse_parallel);
register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
#ifdef _WIN32
register_char_driver("pipe", qemu_chr_open_win_pipe);
#else
register_char_driver("pipe", qemu_chr_open_pipe);
#endif
register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
qemu_chr_parse_pipe);
}
type_init(register_types);