--- /dev/null
+/* $Id$ */
+
+/***
+ This file is part of polypaudio.
+
+ polypaudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ polypaudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with polypaudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef _FILE_OFFSET_BITS
+#undef _FILE_OFFSET_BITS
+#endif
+
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE 1
+#endif
+
+#include <sys/soundcard.h>
+#include <sys/ioctl.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <signal.h>
+
+#include <linux/sockios.h>
+
+#include <polyp/polypaudio.h>
+#include <polypcore/llist.h>
+#include <polypcore/gccmacro.h>
+
+typedef enum {
+ FD_INFO_MIXER,
+ FD_INFO_PLAYBACK
+} fd_info_type_t;
+
+typedef struct fd_info fd_info;
+
+struct fd_info {
+ pthread_mutex_t mutex;
+ int ref;
+
+ fd_info_type_t type;
+ int app_fd, thread_fd;
+
+ pa_sample_spec sample_spec;
+ size_t fragment_size;
+ unsigned n_fragments;
+
+ pa_threaded_mainloop *mainloop;
+ pa_context *context;
+ pa_stream *stream;
+
+ pa_io_event *io_event;
+
+ void *buf;
+
+ int operation_success;
+
+ PA_LLIST_FIELDS(fd_info);
+};
+
+static int dsp_drain(fd_info *i);
+
+static pthread_mutex_t fd_infos_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t func_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static PA_LLIST_HEAD(fd_info, fd_infos) = NULL;
+
+static int (*_ioctl)(int, int, void*) = NULL;
+static int (*_close)(int) = NULL;
+static int (*_open)(const char *, int, mode_t) = NULL;
+static FILE* (*_fopen)(const char *path, const char *mode) = NULL;
+static int (*_open64)(const char *, int, mode_t) = NULL;
+static FILE* (*_fopen64)(const char *path, const char *mode) = NULL;
+static int (*_fclose)(FILE *f) = NULL;
+
+#define LOAD_IOCTL_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_ioctl) \
+ _ioctl = (int (*)(int, int, void*)) dlsym(RTLD_NEXT, "ioctl"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_OPEN_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_open) \
+ _open = (int (*)(const char *, int, mode_t)) dlsym(RTLD_NEXT, "open"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_OPEN64_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_open64) \
+ _open64 = (int (*)(const char *, int, mode_t)) dlsym(RTLD_NEXT, "open64"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_CLOSE_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_close) \
+ _close = (int (*)(int)) dlsym(RTLD_NEXT, "close"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_FOPEN_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_fopen) \
+ _fopen = (FILE* (*)(const char *, const char*)) dlsym(RTLD_NEXT, "fopen"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_FOPEN64_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_fopen64) \
+ _fopen64 = (FILE* (*)(const char *, const char*)) dlsym(RTLD_NEXT, "fopen64"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_FCLOSE_FUNC() \
+do { \
+ pthread_mutex_lock(&func_mutex); \
+ if (!_fclose) \
+ _fclose = (int (*)(FILE *)) dlsym(RTLD_NEXT, "fclose"); \
+ pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+static void debug(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2);
+
+static void debug(const char *format, ...) {
+ va_list ap;
+ if (getenv("PADSP_DEBUG")) {
+ va_start(ap, format);
+ vfprintf(stderr, format, ap);
+ va_end(ap);
+ }
+}
+
+static pthread_key_t recursion_key;
+
+static void recursion_key_alloc(void) {
+ pthread_key_create(&recursion_key, NULL);
+}
+
+static int function_enter(void) {
+ /* Avoid recursive calls */
+ static pthread_once_t recursion_key_once = PTHREAD_ONCE_INIT;
+ pthread_once(&recursion_key_once, recursion_key_alloc);
+
+ if (pthread_getspecific(recursion_key))
+ return 0;
+
+ pthread_setspecific(recursion_key, (void*) 1);
+ return 1;
+}
+
+static void function_exit(void) {
+ pthread_setspecific(recursion_key, NULL);
+}
+
+static void fd_info_free(fd_info *i) {
+ assert(i);
+
+ debug(__FILE__": freeing fd info (fd=%i)\n", i->app_fd);
+
+ dsp_drain(i);
+
+ if (i->mainloop)
+ pa_threaded_mainloop_stop(i->mainloop);
+
+ if (i->stream) {
+ pa_stream_disconnect(i->stream);
+ pa_stream_unref(i->stream);
+ }
+
+ if (i->context) {
+ pa_context_disconnect(i->context);
+ pa_context_unref(i->context);
+ }
+
+ if (i->mainloop)
+ pa_threaded_mainloop_free(i->mainloop);
+
+ if (i->app_fd >= 0) {
+ LOAD_CLOSE_FUNC();
+ _close(i->app_fd);
+ }
+
+ if (i->thread_fd >= 0) {
+ LOAD_CLOSE_FUNC();
+ _close(i->thread_fd);
+ }
+
+ free(i->buf);
+
+ pthread_mutex_destroy(&i->mutex);
+ free(i);
+}
+
+static fd_info *fd_info_ref(fd_info *i) {
+ assert(i);
+
+ pthread_mutex_lock(&i->mutex);
+ assert(i->ref >= 1);
+ i->ref++;
+
+/* debug(__FILE__": ref++, now %i\n", i->ref); */
+ pthread_mutex_unlock(&i->mutex);
+
+ return i;
+}
+
+static void fd_info_unref(fd_info *i) {
+ int r;
+ pthread_mutex_lock(&i->mutex);
+ assert(i->ref >= 1);
+ r = --i->ref;
+/* debug(__FILE__": ref--, now %i\n", i->ref); */
+ pthread_mutex_unlock(&i->mutex);
+
+ if (r <= 0)
+ fd_info_free(i);
+}
+
+static void context_state_cb(pa_context *c, void *userdata) {
+ fd_info *i = userdata;
+ assert(c);
+
+ switch (pa_context_get_state(c)) {
+ case PA_CONTEXT_READY:
+ case PA_CONTEXT_TERMINATED:
+ case PA_CONTEXT_FAILED:
+ pa_threaded_mainloop_signal(i->mainloop, 0);
+ break;
+
+ case PA_CONTEXT_UNCONNECTED:
+ case PA_CONTEXT_CONNECTING:
+ case PA_CONTEXT_AUTHORIZING:
+ case PA_CONTEXT_SETTING_NAME:
+ break;
+ }
+}
+
+static void reset_params(fd_info *i) {
+ assert(i);
+
+ i->sample_spec.format = PA_SAMPLE_ULAW;
+ i->sample_spec.channels = 1;
+ i->sample_spec.rate = 8000;
+ i->fragment_size = 1024;
+ i->n_fragments = 0;
+}
+
+static fd_info* fd_info_new(fd_info_type_t type, int *_errno) {
+ fd_info *i;
+ int sfds[2] = { -1, -1 };
+
+ debug(__FILE__": fd_info_new()\n");
+
+ signal(SIGPIPE, SIG_IGN); /* Yes, ugly as hell */
+
+ if (!(i = malloc(sizeof(fd_info)))) {
+ *_errno = ENOMEM;
+ goto fail;
+ }
+
+ i->app_fd = i->thread_fd = -1;
+ i->type = type;
+
+ i->mainloop = NULL;
+ i->context = NULL;
+ i->stream = NULL;
+ i->io_event = NULL;
+ pthread_mutex_init(&i->mutex, NULL);
+ i->ref = 1;
+ i->buf = NULL;
+ PA_LLIST_INIT(fd_info, i);
+
+ reset_params(i);
+
+ if (socketpair(AF_UNIX, SOCK_STREAM, 0, sfds) < 0) {
+ *_errno = errno;
+ debug(__FILE__": socket() failed: %s\n", strerror(errno));
+ goto fail;
+ }
+
+ i->app_fd = sfds[0];
+ i->thread_fd = sfds[1];
+
+ if (!(i->mainloop = pa_threaded_mainloop_new())) {
+ *_errno = EIO;
+ debug(__FILE__": pa_threaded_mainloop_new() failed\n");
+ goto fail;
+ }
+
+ if (!(i->context = pa_context_new(pa_threaded_mainloop_get_api(i->mainloop), "oss"))) {
+ *_errno = EIO;
+ debug(__FILE__": pa_context_new() failed\n");
+ goto fail;
+ }
+
+ pa_context_set_state_callback(i->context, context_state_cb, i);
+
+ if (pa_context_connect(i->context, NULL, 0, NULL) < 0) {
+ *_errno = ECONNREFUSED;
+ debug(__FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ if (pa_threaded_mainloop_start(i->mainloop) < 0) {
+ *_errno = EIO;
+ debug(__FILE__": pa_threaded_mainloop_start() failed\n");
+ goto unlock_and_fail;
+ }
+
+ /* Wait until the context is ready */
+ pa_threaded_mainloop_wait(i->mainloop);
+
+ if (pa_context_get_state(i->context) != PA_CONTEXT_READY) {
+ *_errno = ECONNREFUSED;
+ debug(__FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto unlock_and_fail;
+ }
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+ return i;
+
+unlock_and_fail:
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+fail:
+
+ if (i)
+ fd_info_unref(i);
+
+ return NULL;
+}
+
+static void fd_info_add_to_list(fd_info *i) {
+ assert(i);
+
+ pthread_mutex_lock(&fd_infos_mutex);
+ PA_LLIST_PREPEND(fd_info, fd_infos, i);
+ pthread_mutex_unlock(&fd_infos_mutex);
+
+ fd_info_ref(i);
+}
+
+static void fd_info_remove_from_list(fd_info *i) {
+ assert(i);
+
+ pthread_mutex_lock(&fd_infos_mutex);
+ PA_LLIST_REMOVE(fd_info, fd_infos, i);
+ pthread_mutex_unlock(&fd_infos_mutex);
+
+ fd_info_unref(i);
+}
+
+static fd_info* fd_info_find(int fd) {
+ fd_info *i;
+
+ pthread_mutex_lock(&fd_infos_mutex);
+
+ for (i = fd_infos; i; i = i->next)
+ if (i->app_fd == fd) {
+ fd_info_ref(i);
+ break;
+ }
+
+ pthread_mutex_unlock(&fd_infos_mutex);
+
+ return i;
+}
+
+static void fix_metrics(fd_info *i) {
+ size_t fs;
+ char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
+
+ fs = pa_frame_size(&i->sample_spec);
+ i->fragment_size = (i->fragment_size/fs)*fs;
+
+ if (i->n_fragments < 2)
+ i->n_fragments = 12;
+
+ if (i->fragment_size <= 0)
+ if ((i->fragment_size = pa_bytes_per_second(&i->sample_spec) / 2 / i->n_fragments) <= 0)
+ i->fragment_size = 1024;
+
+ debug(__FILE__": sample spec: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec));
+ debug(__FILE__": fixated metrics to %i fragments, %i bytes each.\n", i->n_fragments, i->fragment_size);
+}
+
+static void stream_request_cb(pa_stream *s, size_t length, void *userdata) {
+ fd_info *i = userdata;
+ assert(s);
+
+ if (i->io_event) {
+ pa_mainloop_api *api;
+ api = pa_threaded_mainloop_get_api(i->mainloop);
+ api->io_enable(i->io_event, PA_IO_EVENT_INPUT);
+ }
+}
+
+static void stream_latency_update_cb(pa_stream *s, void *userdata) {
+ fd_info *i = userdata;
+ assert(s);
+
+ pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static void fd_info_shutdown(fd_info *i) {
+ assert(i);
+
+ if (i->io_event) {
+ pa_mainloop_api *api;
+ api = pa_threaded_mainloop_get_api(i->mainloop);
+ api->io_free(i->io_event);
+ i->io_event = NULL;
+ }
+
+ if (i->thread_fd >= 0) {
+ close(i->thread_fd);
+ i->thread_fd = -1;
+ }
+}
+
+static int fd_info_copy_data(fd_info *i, int force) {
+ size_t n;
+
+ if (!i->stream)
+ return -1;
+
+ if ((n = pa_stream_writable_size(i->stream)) == (size_t) -1) {
+ debug(__FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ return -1;
+ }
+
+ while (n >= i->fragment_size || force) {
+ ssize_t r;
+
+ if (!i->buf) {
+ if (!(i->buf = malloc(i->fragment_size))) {
+ debug(__FILE__": malloc() failed.\n");
+ return -1;
+ }
+ }
+
+ if ((r = read(i->thread_fd, i->buf, i->fragment_size)) <= 0) {
+
+ if (errno == EAGAIN)
+ break;
+
+ debug(__FILE__": read(): %s\n", r == 0 ? "EOF" : strerror(errno));
+ return -1;
+ }
+
+ if (pa_stream_write(i->stream, i->buf, r, free, 0, PA_SEEK_RELATIVE) < 0) {
+ debug(__FILE__": pa_stream_write(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ return -1;
+ }
+
+ i->buf = NULL;
+
+ assert(n >= (size_t) r);
+ n -= r;
+ }
+
+ if (i->io_event) {
+ pa_mainloop_api *api;
+ api = pa_threaded_mainloop_get_api(i->mainloop);
+ api->io_enable(i->io_event, n >= i->fragment_size ? PA_IO_EVENT_INPUT : 0);
+ }
+
+ return 0;
+}
+
+static void stream_state_cb(pa_stream *s, void * userdata) {
+ fd_info *i = userdata;
+ assert(s);
+
+ switch (pa_stream_get_state(s)) {
+
+ case PA_STREAM_READY:
+ debug(__FILE__": stream established.\n");
+ break;
+
+ case PA_STREAM_FAILED:
+ debug(__FILE__": pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+ fd_info_shutdown(i);
+ break;
+
+ case PA_STREAM_TERMINATED:
+ case PA_STREAM_UNCONNECTED:
+ case PA_STREAM_CREATING:
+ break;
+ }
+}
+
+static int create_stream(fd_info *i) {
+ pa_buffer_attr attr;
+ int n;
+
+ assert(i);
+
+ fix_metrics(i);
+
+ if (!(i->stream = pa_stream_new(i->context, "audio stream", &i->sample_spec, NULL))) {
+ debug(__FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ pa_stream_set_state_callback(i->stream, stream_state_cb, i);
+ pa_stream_set_write_callback(i->stream, stream_request_cb, i);
+ pa_stream_set_latency_update_callback(i->stream, stream_latency_update_cb, i);
+
+ memset(&attr, 0, sizeof(attr));
+ attr.maxlength = i->fragment_size * (i->n_fragments+1);
+ attr.tlength = i->fragment_size * i->n_fragments;
+ attr.prebuf = i->fragment_size;
+ attr.minreq = i->fragment_size;
+
+ if (pa_stream_connect_playback(i->stream, NULL, &attr, PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE, NULL, NULL) < 0) {
+ debug(__FILE__": pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ n = i->fragment_size;
+ setsockopt(i->app_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n));
+ n = i->fragment_size;
+ setsockopt(i->thread_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n));
+
+ return 0;
+
+fail:
+ return -1;
+}
+
+static void free_stream(fd_info *i) {
+ assert(i);
+
+ if (i->stream) {
+ pa_stream_disconnect(i->stream);
+ pa_stream_unref(i->stream);
+ i->stream = NULL;
+ }
+}
+
+static void io_event_cb(pa_mainloop_api *api, pa_io_event *e, int fd, pa_io_event_flags_t flags, void *userdata) {
+ fd_info *i = userdata;
+
+ pa_threaded_mainloop_signal(i->mainloop, 0);
+
+ if (flags & PA_IO_EVENT_INPUT) {
+
+ if (!i->stream) {
+ api->io_enable(e, 0);
+
+ if (create_stream(i) < 0)
+ goto fail;
+
+ } else {
+ if (fd_info_copy_data(i, 0) < 0)
+ goto fail;
+ }
+
+ } else if (flags & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR))
+ goto fail;
+
+ return;
+
+fail:
+ /* We can't do anything better than removing the event source */
+ fd_info_shutdown(i);
+}
+
+static int dsp_open(int flags, int *_errno) {
+ fd_info *i;
+ pa_mainloop_api *api;
+ int ret;
+ int f;
+
+ if ((flags != O_WRONLY) && (flags != (O_WRONLY|O_NONBLOCK))) {
+ *_errno = EACCES;
+ return -1;
+ }
+
+ if (!(i = fd_info_new(FD_INFO_PLAYBACK, _errno)))
+ return -1;
+
+ shutdown(i->thread_fd, SHUT_WR);
+ shutdown(i->app_fd, SHUT_RD);
+
+ if ((flags & O_NONBLOCK) == O_NONBLOCK) {
+ if ((f = fcntl(i->app_fd, F_GETFL)) >= 0)
+ fcntl(i->app_fd, F_SETFL, f|O_NONBLOCK);
+ }
+ if ((f = fcntl(i->thread_fd, F_GETFL)) >= 0)
+ fcntl(i->thread_fd, F_SETFL, f|O_NONBLOCK);
+
+ fcntl(i->app_fd, F_SETFD, FD_CLOEXEC);
+ fcntl(i->thread_fd, F_SETFD, FD_CLOEXEC);
+
+ pa_threaded_mainloop_lock(i->mainloop);
+ api = pa_threaded_mainloop_get_api(i->mainloop);
+ if (!(i->io_event = api->io_new(api, i->thread_fd, PA_IO_EVENT_INPUT, io_event_cb, i)))
+ goto fail;
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ debug(__FILE__": dsp_open() succeeded, fd=%i\n", i->app_fd);
+
+ fd_info_add_to_list(i);
+ ret = i->app_fd;
+ fd_info_unref(i);
+
+ return ret;
+
+fail:
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ if (i)
+ fd_info_unref(i);
+
+ *_errno = EIO;
+
+ debug(__FILE__": dsp_open() failed\n");
+
+ return -1;
+}
+
+static int mixer_open(int flags, int *_errno) {
+/* fd_info *i; */
+
+ *_errno = ENOSYS;
+ return -1;
+
+/* if (!(i = fd_info_new(FD_INFO_MIXER))) */
+/* return -1; */
+
+}
+
+int open(const char *filename, int flags, ...) {
+ va_list args;
+ mode_t mode = 0;
+ int r, _errno = 0;
+
+ va_start(args, flags);
+ if (flags & O_CREAT)
+ mode = va_arg(args, mode_t);
+ va_end(args);
+
+ if (!function_enter()) {
+ LOAD_OPEN_FUNC();
+ return _open(filename, flags, mode);
+ }
+
+ debug(__FILE__": open()\n");
+
+ if (strcmp(filename, "/dev/dsp") == 0 || strcmp(filename, "/dev/adsp") == 0) {
+ r = dsp_open(flags, &_errno);
+ } else if (strcmp(filename, "/dev/mixer") == 0) {
+ r = mixer_open(flags, &_errno);
+ } else {
+ function_exit();
+ LOAD_OPEN_FUNC();
+ return _open(filename, flags, mode);
+ }
+
+ function_exit();
+
+ if (_errno)
+ errno = _errno;
+
+ return r;
+}
+
+static int mixer_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) {
+ *_errno = ENOSYS;
+ return -1;
+}
+
+static int map_format(int *fmt, pa_sample_spec *ss) {
+
+ switch (*fmt) {
+ case AFMT_MU_LAW:
+ ss->format = PA_SAMPLE_ULAW;
+ break;
+
+ case AFMT_A_LAW:
+ ss->format = PA_SAMPLE_ALAW;
+ break;
+
+ case AFMT_S8:
+ *fmt = AFMT_U8;
+ /* fall through */
+ case AFMT_U8:
+ ss->format = PA_SAMPLE_U8;
+ break;
+
+ case AFMT_U16_BE:
+ *fmt = AFMT_S16_BE;
+ /* fall through */
+ case AFMT_S16_BE:
+ ss->format = PA_SAMPLE_S16BE;
+ break;
+
+ case AFMT_U16_LE:
+ *fmt = AFMT_S16_LE;
+ /* fall through */
+ case AFMT_S16_LE:
+ ss->format = PA_SAMPLE_S16LE;
+ break;
+
+ default:
+ ss->format = PA_SAMPLE_S16NE;
+ *fmt = AFMT_S16_NE;
+ break;
+ }
+
+ return 0;
+}
+
+static int map_format_back(pa_sample_format_t format) {
+ switch (format) {
+ case PA_SAMPLE_S16LE: return AFMT_S16_LE;
+ case PA_SAMPLE_S16BE: return AFMT_S16_BE;
+ case PA_SAMPLE_ULAW: return AFMT_MU_LAW;
+ case PA_SAMPLE_ALAW: return AFMT_A_LAW;
+ case PA_SAMPLE_U8: return AFMT_U8;
+ default:
+ abort();
+ }
+}
+
+static void success_cb(pa_stream *s, int success, void *userdata) {
+ fd_info *i = userdata;
+
+ assert(s);
+ assert(i);
+
+ i->operation_success = success;
+ pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static int dsp_empty_socket(fd_info *i) {
+ int ret = -1;
+
+ /* Empty the socket */
+ for (;;) {
+ int l;
+
+ if (i->thread_fd < 0)
+ break;
+
+ if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) {
+ debug(__FILE__": SIOCINQ: %s\n", strerror(errno));
+ break;
+ }
+
+ if (!l)
+ break;
+
+ pa_threaded_mainloop_wait(i->mainloop);
+ }
+
+ return ret;
+}
+
+static int dsp_drain(fd_info *i) {
+ pa_operation *o = NULL;
+ int r = -1;
+
+ if (!i->mainloop)
+ return 0;
+
+ debug(__FILE__": Draining.\n");
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ if (dsp_empty_socket(i) < 0)
+ goto fail;
+
+ if (!i->stream)
+ goto fail;
+
+ debug(__FILE__": Really draining.\n");
+
+ if (!(o = pa_stream_drain(i->stream, success_cb, i))) {
+ debug(__FILE__": pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ i->operation_success = 0;
+ while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+ if (!i->stream || pa_stream_get_state(i->stream) != PA_STREAM_READY)
+ goto fail;
+
+ pa_threaded_mainloop_wait(i->mainloop);
+ }
+
+ if (!i->operation_success) {
+ debug(__FILE__": pa_stream_drain() 2: %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ r = 0;
+
+fail:
+
+ if (o)
+ pa_operation_unref(o);
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ return 0;
+}
+
+static int dsp_trigger(fd_info *i) {
+ pa_operation *o = NULL;
+ int r = -1;
+
+ fd_info_copy_data(i, 1);
+
+ if (!i->stream)
+ return 0;
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ if (dsp_empty_socket(i) < 0)
+ goto fail;
+
+ debug(__FILE__": Triggering.\n");
+
+ if (!(o = pa_stream_trigger(i->stream, success_cb, i))) {
+ debug(__FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ i->operation_success = 0;
+ while (!pa_operation_get_state(o) != PA_OPERATION_DONE) {
+ if (!i->stream || pa_stream_get_state(i->stream) != PA_STREAM_READY)
+ goto fail;
+
+ pa_threaded_mainloop_wait(i->mainloop);
+ }
+
+ if (!i->operation_success) {
+ debug(__FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ goto fail;
+ }
+
+ r = 0;
+
+fail:
+
+ if (o)
+ pa_operation_unref(o);
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ return 0;
+}
+
+static int dsp_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) {
+ int ret = -1;
+
+ switch (request) {
+ case SNDCTL_DSP_SETFMT: {
+ debug(__FILE__": SNDCTL_DSP_SETFMT: %i\n", *(int*) argp);
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ if (*(int*) argp == AFMT_QUERY)
+ *(int*) argp = map_format_back(i->sample_spec.format);
+ else {
+ map_format((int*) argp, &i->sample_spec);
+ free_stream(i);
+ }
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+ break;
+ }
+
+ case SNDCTL_DSP_SPEED: {
+ pa_sample_spec ss;
+ int valid;
+
+ debug(__FILE__": SNDCTL_DSP_SPEED: %i\n", *(int*) argp);
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ ss = i->sample_spec;
+ ss.rate = *(int*) argp;
+
+ if ((valid = pa_sample_spec_valid(&ss))) {
+ i->sample_spec = ss;
+ free_stream(i);
+ }
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ if (!valid) {
+ *_errno = EINVAL;
+ goto fail;
+ }
+
+ break;
+ }
+
+ case SNDCTL_DSP_STEREO:
+ debug(__FILE__": SNDCTL_DSP_STEREO: %i\n", *(int*) argp);
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ i->sample_spec.channels = *(int*) argp ? 2 : 1;
+ free_stream(i);
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+ return 0;
+
+ case SNDCTL_DSP_CHANNELS: {
+ pa_sample_spec ss;
+ int valid;
+
+ debug(__FILE__": SNDCTL_DSP_CHANNELS: %i\n", *(int*) argp);
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ ss = i->sample_spec;
+ ss.channels = *(int*) argp;
+
+ if ((valid = pa_sample_spec_valid(&ss))) {
+ i->sample_spec = ss;
+ free_stream(i);
+ }
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ if (!valid) {
+ *_errno = EINVAL;
+ goto fail;
+ }
+
+ break;
+ }
+
+ case SNDCTL_DSP_GETBLKSIZE:
+ debug(__FILE__": SNDCTL_DSP_GETBLKSIZE\n");
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ fix_metrics(i);
+ *(int*) argp = i->fragment_size;
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ break;
+
+ case SNDCTL_DSP_SETFRAGMENT:
+ debug(__FILE__": SNDCTL_DSP_SETFRAGMENT: 0x%8x\n", *(int*) argp);
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ i->fragment_size = 1 << (*(int*) argp);
+ i->n_fragments = (*(int*) argp) >> 16;
+
+ free_stream(i);
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ break;
+
+ case SNDCTL_DSP_GETCAPS:
+ debug(__FILE__": SNDCTL_DSP_CAPS\n");
+
+ *(int*) argp = DSP_CAP_MULTI;
+ break;
+
+ case SNDCTL_DSP_GETODELAY: {
+ int l;
+
+ debug(__FILE__": SNDCTL_DSP_GETODELAY\n");
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ *(int*) argp = 0;
+
+ for (;;) {
+ pa_usec_t usec;
+ if (!i->stream || pa_stream_get_state(i->stream) != PA_STREAM_READY)
+ break;
+
+ if (pa_stream_get_latency(i->stream, &usec, NULL) >= 0) {
+ *(int*) argp = pa_usec_to_bytes(usec, &i->sample_spec);
+ break;
+ }
+
+ if (pa_context_errno(i->context) != PA_ERR_NODATA) {
+ debug(__FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ break;
+ }
+
+ pa_threaded_mainloop_wait(i->mainloop);
+ }
+
+ if (ioctl(i->thread_fd, SIOCINQ, &l) < 0)
+ debug(__FILE__": SIOCINQ failed: %s\n", strerror(errno));
+ else
+ *(int*) argp += l;
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ debug(__FILE__": ODELAY: %i\n", *(int*) argp);
+
+ break;
+ }
+
+ case SNDCTL_DSP_RESET: {
+ debug(__FILE__": SNDCTL_DSP_RESET\n");
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ free_stream(i);
+ reset_params(i);
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+ break;
+ }
+
+ case SNDCTL_DSP_GETFMTS: {
+ debug(__FILE__": SNDCTL_DSP_GETFMTS\n");
+
+ *(int*) argp = AFMT_MU_LAW|AFMT_A_LAW|AFMT_U8|AFMT_S16_LE|AFMT_S16_BE;
+ break;
+ }
+
+ case SNDCTL_DSP_POST:
+ debug(__FILE__": SNDCTL_DSP_POST\n");
+
+ if (dsp_trigger(i) < 0)
+ *_errno = EIO;
+ break;
+
+ case SNDCTL_DSP_SYNC:
+ debug(__FILE__": SNDCTL_DSP_SYNC\n");
+
+ if (dsp_drain(i) < 0)
+ *_errno = EIO;
+
+ break;
+
+ case SNDCTL_DSP_GETOSPACE: {
+ audio_buf_info *bi = (audio_buf_info*) argp;
+ int l;
+ size_t k = 0;
+
+ debug(__FILE__": SNDCTL_DSP_GETOSPACE\n");
+
+ pa_threaded_mainloop_lock(i->mainloop);
+
+ fix_metrics(i);
+
+ if (i->stream) {
+ if ((k = pa_stream_writable_size(i->stream)) == (size_t) -1)
+ debug(__FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context)));
+ } else
+ k = i->fragment_size * i->n_fragments;
+
+ if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) {
+ debug(__FILE__": SIOCINQ failed: %s\n", strerror(errno));
+ l = 0;
+ }
+
+ bi->fragsize = i->fragment_size;
+ bi->fragstotal = i->n_fragments;
+ bi->bytes = k > (size_t) l ? k - l : 0;
+ bi->fragments = bi->bytes / bi->fragsize;
+
+ pa_threaded_mainloop_unlock(i->mainloop);
+
+ debug(__FILE__": fragsize=%i, fragstotal=%i, bytes=%i, fragments=%i\n", bi->fragsize, bi->fragstotal, bi->bytes, bi->fragments);
+
+ break;
+ }
+
+ default:
+ debug(__FILE__": unknwon ioctl 0x%08lx\n", request);
+
+ *_errno = EINVAL;
+ goto fail;
+ }
+
+ ret = 0;
+
+fail:
+
+ return ret;
+}
+
+int ioctl(int fd, unsigned long request, ...) {
+ fd_info *i;
+ va_list args;
+ void *argp;
+ int r, _errno = 0;
+
+ debug(__FILE__": ioctl()\n");
+
+ va_start(args, request);
+ argp = va_arg(args, void *);
+ va_end(args);
+
+ if (!function_enter()) {
+ LOAD_IOCTL_FUNC();
+ return _ioctl(fd, request, argp);
+ }
+
+ if (!(i = fd_info_find(fd))) {
+ function_exit();
+ LOAD_IOCTL_FUNC();
+ return _ioctl(fd, request, argp);
+ }
+
+ if (i->type == FD_INFO_MIXER)
+ r = mixer_ioctl(i, request, argp, &_errno);
+ else
+ r = dsp_ioctl(i, request, argp, &_errno);
+
+ fd_info_unref(i);
+
+ if (_errno)
+ errno = _errno;
+
+ function_exit();
+
+ return r;
+}
+
+int close(int fd) {
+ fd_info *i;
+
+ debug(__FILE__": close()\n");
+
+ if (!function_enter()) {
+ LOAD_CLOSE_FUNC();
+ return _close(fd);
+ }
+
+ if (!(i = fd_info_find(fd))) {
+ function_exit();
+ LOAD_CLOSE_FUNC();
+ return _close(fd);
+ }
+
+ fd_info_remove_from_list(i);
+ fd_info_unref(i);
+
+ function_exit();
+
+ return 0;
+}
+
+int open64(const char *filename, int flags, ...) {
+ va_list args;
+ mode_t mode = 0;
+
+ debug(__FILE__": open64()\n");
+
+ va_start(args, flags);
+ if (flags & O_CREAT)
+ mode = va_arg(args, mode_t);
+ va_end(args);
+
+ if (strcmp(filename, "/dev/dsp") != 0 &&
+ strcmp(filename, "/dev/adsp") != 0 &&
+ strcmp(filename, "/dev/mixer") != 0) {
+ LOAD_OPEN64_FUNC();
+ return _open64(filename, flags, mode);
+ }
+
+ return open(filename, flags, mode);
+}
+
+FILE* fopen(const char *filename, const char *mode) {
+ FILE *f = NULL;
+ int fd;
+
+ debug(__FILE__": fopen()\n");
+
+ if (strcmp(filename, "/dev/dsp") != 0 &&
+ strcmp(filename, "/dev/adsp") != 0 &&
+ strcmp(filename, "/dev/mixer") != 0) {
+ LOAD_FOPEN_FUNC();
+ return _fopen(filename, mode);
+ }
+
+ if (strcmp(mode, "wb") != 0) {
+ errno = EACCES;
+ return NULL;
+ }
+
+ if ((fd = open(filename, O_WRONLY)) < 0)
+ return NULL;
+
+ if (!(f = fdopen(fd, "wb"))) {
+ close(fd);
+ return NULL;
+ }
+
+ return f;
+}
+
+FILE *fopen64(const char *filename, const char *mode) {
+
+ debug(__FILE__": fopen64()\n");
+
+ if (strcmp(filename, "/dev/dsp") != 0 &&
+ strcmp(filename, "/dev/adsp") != 0 &&
+ strcmp(filename, "/dev/mixer") != 0) {
+ LOAD_FOPEN64_FUNC();
+ return _fopen64(filename, mode);
+ }
+
+ return fopen(filename, mode);
+}
+
+int fclose(FILE *f) {
+ fd_info *i;
+
+ debug(__FILE__": fclose()\n");
+
+ if (!function_enter()) {
+ LOAD_FCLOSE_FUNC();
+ return _fclose(f);
+ }
+
+ if (!(i = fd_info_find(fileno(f)))) {
+ function_exit();
+ LOAD_FCLOSE_FUNC();
+ return _fclose(f);
+ }
+
+ fd_info_remove_from_list(i);
+
+ /* Dirty trick to avoid that the fd is not freed twice, once by us
+ * and once by the real fclose() */
+ i->app_fd = -1;
+
+ fd_info_unref(i);
+
+ function_exit();
+
+ LOAD_FCLOSE_FUNC();
+ return _fclose(f);
+}
projects / profile / ivi / pulseaudio.git / commitdiff