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-rw-r--r--src/modules/dbus-util.c354
-rw-r--r--src/modules/dbus-util.h36
-rw-r--r--src/modules/module-hal-detect.c495
3 files changed, 885 insertions, 0 deletions
diff --git a/src/modules/dbus-util.c b/src/modules/dbus-util.c
new file mode 100644
index 00000000..0c9978e7
--- /dev/null
+++ b/src/modules/dbus-util.c
@@ -0,0 +1,354 @@
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio 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.
+
+ PulseAudio 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 PulseAudio; 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
+
+#include <assert.h>
+#include <pulsecore/log.h>
+#include <pulsecore/props.h>
+#include <pulse/xmalloc.h>
+
+#include "dbus-util.h"
+
+struct pa_dbus_connection {
+ int refcount;
+ pa_core *core;
+ DBusConnection *connection;
+ const char *property_name;
+ pa_defer_event* dispatch_event;
+};
+
+static void dispatch_cb(pa_mainloop_api *ea, pa_defer_event *ev, void *userdata)
+{
+ DBusConnection *conn = (DBusConnection *) userdata;
+ if (dbus_connection_dispatch(conn) == DBUS_DISPATCH_COMPLETE) {
+ /* no more data to process, disable the deferred */
+ ea->defer_enable(ev, 0);
+ }
+}
+
+/* DBusDispatchStatusFunction callback for the pa mainloop */
+static void dispatch_status(DBusConnection *conn, DBusDispatchStatus status,
+ void *userdata)
+{
+ pa_dbus_connection *c = (pa_dbus_connection*) userdata;
+ switch(status) {
+ case DBUS_DISPATCH_COMPLETE:
+ c->core->mainloop->defer_enable(c->dispatch_event, 0);
+ break;
+ case DBUS_DISPATCH_DATA_REMAINS:
+ case DBUS_DISPATCH_NEED_MEMORY:
+ default:
+ c->core->mainloop->defer_enable(c->dispatch_event, 1);
+ break;
+ }
+}
+
+static pa_io_event_flags_t
+get_watch_flags(DBusWatch *watch)
+{
+ unsigned int flags = dbus_watch_get_flags(watch);
+ pa_io_event_flags_t events = PA_IO_EVENT_HANGUP | PA_IO_EVENT_ERROR;
+
+ /* no watch flags for disabled watches */
+ if (!dbus_watch_get_enabled(watch))
+ return PA_IO_EVENT_NULL;
+
+ if (flags & DBUS_WATCH_READABLE)
+ events |= PA_IO_EVENT_INPUT;
+ if (flags & DBUS_WATCH_WRITABLE)
+ events |= PA_IO_EVENT_OUTPUT;
+
+ return events;
+}
+
+static void timeval_next(struct timeval *tv, int millint)
+{
+ /* number of seconds in the milli-second interval */
+ tv->tv_sec += (millint / 1000);
+ /* milliseconds minus the seconds portion, converted to microseconds */
+ tv->tv_usec += (millint - tv->tv_sec * 1000) * 1000;
+}
+
+/* pa_io_event_cb_t IO event handler */
+static void handle_io_event(PA_GCC_UNUSED pa_mainloop_api *ea, pa_io_event *e,
+ int fd, pa_io_event_flags_t events, void *userdata)
+{
+ unsigned int flags = 0;
+ DBusWatch *watch = (DBusWatch*) userdata;
+
+ assert(fd == dbus_watch_get_fd(watch));
+
+ if (!dbus_watch_get_enabled(watch)) {
+ pa_log_warn(__FILE__": Asked to handle disabled watch: %p %i",
+ (void *) watch, fd);
+ return;
+ }
+
+ if (events & PA_IO_EVENT_INPUT)
+ flags |= DBUS_WATCH_READABLE;
+ if (events & PA_IO_EVENT_OUTPUT)
+ flags |= DBUS_WATCH_WRITABLE;
+ if (events & PA_IO_EVENT_HANGUP)
+ flags |= DBUS_WATCH_HANGUP;
+ if (events & PA_IO_EVENT_ERROR)
+ flags |= DBUS_WATCH_ERROR;
+
+ dbus_watch_handle(watch, flags);
+}
+
+/* pa_time_event_cb_t timer event handler */
+static void handle_time_event(pa_mainloop_api *ea, pa_time_event* e,
+ const struct timeval *tv, void *userdata)
+{
+ DBusTimeout *timeout = (DBusTimeout*) userdata;
+
+ if (dbus_timeout_get_enabled(timeout)) {
+ struct timeval next = *tv;
+ dbus_timeout_handle(timeout);
+
+ /* restart it for the next scheduled time */
+ timeval_next(&next, dbus_timeout_get_interval(timeout));
+ ea->time_restart(e, &next);
+ }
+}
+
+/* DBusAddWatchFunction callback for pa mainloop */
+static dbus_bool_t add_watch(DBusWatch *watch, void *data)
+{
+ pa_io_event *ev;
+ pa_core *c = (pa_core*) data;
+
+ ev = c->mainloop->io_new(c->mainloop, dbus_watch_get_fd(watch),
+ get_watch_flags(watch),
+ handle_io_event, (void*) watch);
+ if (NULL == ev)
+ return FALSE;
+
+ /* dbus_watch_set_data(watch, (void*) ev, c->mainloop->io_free); */
+ dbus_watch_set_data(watch, (void*) ev, NULL);
+
+ return TRUE;
+}
+
+/* DBusRemoveWatchFunction callback for pa mainloop */
+static void remove_watch(DBusWatch *watch, void *data)
+{
+ pa_core *c = (pa_core*) data;
+ pa_io_event *ev = (pa_io_event*) dbus_watch_get_data(watch);
+
+ /* free the event */
+ if (NULL != ev)
+ c->mainloop->io_free(ev);
+}
+
+/* DBusWatchToggledFunction callback for pa mainloop */
+static void toggle_watch(DBusWatch *watch, void *data)
+{
+ pa_core *c = (pa_core*) data;
+ pa_io_event *ev = (pa_io_event*) dbus_watch_get_data(watch);
+
+ /* get_watch_flags() checks if the watch is enabled */
+ c->mainloop->io_enable(ev, get_watch_flags(watch));
+}
+
+/* DBusAddTimeoutFunction callback for pa mainloop */
+static dbus_bool_t add_timeout(DBusTimeout *timeout, void *data)
+{
+ struct timeval tv;
+ pa_time_event *ev;
+ pa_core *c = (pa_core*) data;
+
+ if (!dbus_timeout_get_enabled(timeout))
+ return FALSE;
+
+ if (gettimeofday(&tv, NULL) < 0)
+ return -1;
+
+ timeval_next(&tv, dbus_timeout_get_interval(timeout));
+
+ ev = c->mainloop->time_new(c->mainloop, &tv, handle_time_event,
+ (void*) timeout);
+ if (NULL == ev)
+ return FALSE;
+
+ /* dbus_timeout_set_data(timeout, (void*) ev, c->mainloop->time_free); */
+ dbus_timeout_set_data(timeout, (void*) ev, NULL);
+
+ return TRUE;
+}
+
+/* DBusRemoveTimeoutFunction callback for pa mainloop */
+static void remove_timeout(DBusTimeout *timeout, void *data)
+{
+ pa_core *c = (pa_core*) data;
+ pa_time_event *ev = (pa_time_event*) dbus_timeout_get_data(timeout);
+
+ /* free the event */
+ if (NULL != ev)
+ c->mainloop->time_free(ev);
+}
+
+/* DBusTimeoutToggledFunction callback for pa mainloop */
+static void toggle_timeout(DBusTimeout *timeout, void *data)
+{
+ struct timeval tv;
+ pa_core *c = (pa_core*) data;
+ pa_time_event *ev = (pa_time_event*) dbus_timeout_get_data(timeout);
+
+ gettimeofday(&tv, NULL);
+ if (dbus_timeout_get_enabled(timeout)) {
+ timeval_next(&tv, dbus_timeout_get_interval(timeout));
+ c->mainloop->time_restart(ev, &tv);
+ } else {
+ /* set it to expire one second ago */
+ tv.tv_sec -= 1;
+ c->mainloop->time_restart(ev, &tv);
+ }
+}
+
+static void
+pa_dbus_connection_free(pa_dbus_connection *c)
+{
+ assert(c);
+ assert(!dbus_connection_get_is_connected(c->connection));
+
+ /* already disconnected, just free */
+ pa_property_remove(c->core, c->property_name);
+ c->core->mainloop->defer_free(c->dispatch_event);
+ dbus_connection_unref(c->connection);
+ pa_xfree(c);
+}
+
+static void
+wakeup_main(void *userdata)
+{
+ pa_dbus_connection *c = (pa_dbus_connection*) userdata;
+ /* this will wakeup the mainloop and dispatch events, although
+ * it may not be the cleanest way of accomplishing it */
+ c->core->mainloop->defer_enable(c->dispatch_event, 1);
+}
+
+static pa_dbus_connection* pa_dbus_connection_new(pa_core* c, DBusConnection *conn, const char* name)
+{
+ pa_dbus_connection *pconn = pa_xmalloc(sizeof(pa_dbus_connection));
+
+ pconn->refcount = 1;
+ pconn->core = c;
+ pconn->property_name = name;
+ pconn->connection = conn;
+ pconn->dispatch_event = c->mainloop->defer_new(c->mainloop, dispatch_cb,
+ (void*) conn);
+
+ pa_property_set(c, name, pconn);
+
+ return pconn;
+}
+
+DBusConnection* pa_dbus_connection_get(pa_dbus_connection *c)
+{
+ assert(c && c->connection);
+ return c->connection;
+}
+
+void pa_dbus_connection_unref(pa_dbus_connection *c)
+{
+ assert(c);
+
+ /* non-zero refcount, still outstanding refs */
+ if (--(c->refcount))
+ return;
+
+ /* refcount is zero */
+ if (dbus_connection_get_is_connected(c->connection)) {
+ /* disconnect as we have no more internal references */
+ dbus_connection_close(c->connection);
+ /* must process remaining messages, bit of a kludge to
+ * handle both unload and shutdown */
+ while(dbus_connection_read_write_dispatch(c->connection, -1));
+ }
+ pa_dbus_connection_free(c);
+}
+
+pa_dbus_connection* pa_dbus_connection_ref(pa_dbus_connection *c)
+{
+ assert(c);
+
+ ++(c->refcount);
+
+ return c;
+}
+
+pa_dbus_connection* pa_dbus_bus_get(pa_core *c, DBusBusType type,
+ DBusError *error)
+{
+ const char* name;
+ DBusConnection *conn;
+ pa_dbus_connection *pconn;
+ static const char sysname[] = "dbus-connection-system";
+ static const char sessname[] = "dbus-connection-session";
+ static const char startname[] = "dbus-connection-starter";
+
+ switch (type) {
+ case DBUS_BUS_SYSTEM:
+ name = sysname;
+ break;
+ case DBUS_BUS_SESSION:
+ name = sessname;
+ break;
+ case DBUS_BUS_STARTER:
+ name = startname;
+ break;
+ default:
+ assert(0); /* never reached */
+ break;
+ }
+
+ if ((pconn = pa_property_get(c, name)))
+ return pa_dbus_connection_ref(pconn);
+
+ /* else */
+ conn = dbus_bus_get_private(type, error);
+ if (conn == NULL || dbus_error_is_set(error)) {
+ return NULL;
+ }
+
+ pconn = pa_dbus_connection_new(c, conn, name);
+
+ /* don't exit on disconnect */
+ dbus_connection_set_exit_on_disconnect(conn, FALSE);
+ /* set up the DBUS call backs */
+ dbus_connection_set_dispatch_status_function(conn, dispatch_status,
+ (void*) pconn, NULL);
+ dbus_connection_set_watch_functions(conn,
+ add_watch,
+ remove_watch,
+ toggle_watch,
+ (void*) c, NULL);
+ dbus_connection_set_timeout_functions(conn,
+ add_timeout,
+ remove_timeout,
+ toggle_timeout,
+ (void*) c, NULL);
+ dbus_connection_set_wakeup_main_function(conn, wakeup_main, pconn, NULL);
+
+ return pconn;
+}
diff --git a/src/modules/dbus-util.h b/src/modules/dbus-util.h
new file mode 100644
index 00000000..d5d5b36a
--- /dev/null
+++ b/src/modules/dbus-util.h
@@ -0,0 +1,36 @@
+#ifndef foodbusutilhfoo
+#define foodbusutilhfoo
+
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio 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.
+
+ PulseAudio 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 PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#include <dbus/dbus.h>
+
+typedef struct pa_dbus_connection pa_dbus_connection;
+
+/* return the DBusConnection of the specified type for the given core,
+ * like dbus_bus_get(), but integrates the connection with the pa_core */
+pa_dbus_connection* pa_dbus_bus_get(pa_core *c, DBusBusType type, DBusError *error);
+
+DBusConnection* pa_dbus_connection_get(pa_dbus_connection *conn);
+
+pa_dbus_connection* pa_dbus_connection_ref(pa_dbus_connection *conn);
+void pa_dbus_connection_unref(pa_dbus_connection *conn);
+
+#endif
diff --git a/src/modules/module-hal-detect.c b/src/modules/module-hal-detect.c
new file mode 100644
index 00000000..1c15a2d1
--- /dev/null
+++ b/src/modules/module-hal-detect.c
@@ -0,0 +1,495 @@
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio 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.
+
+ PulseAudio 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 PulseAudio; 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
+
+#include <stdio.h>
+#include <assert.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core-error.h>
+#include <pulsecore/module.h>
+#include <pulsecore/log.h>
+#include <pulsecore/core-subscribe.h>
+#include <pulsecore/hashmap.h>
+#include <pulsecore/idxset.h>
+#include <pulsecore/core-util.h>
+
+#include <hal/libhal.h>
+
+#include "dbus-util.h"
+#include "module-hal-detect-symdef.h"
+
+PA_MODULE_AUTHOR("Shahms King")
+PA_MODULE_DESCRIPTION("Detect available audio hardware and load matching drivers")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+
+static const char* capabilities[] = { "alsa", "oss" };
+
+typedef enum {
+ CAP_ALSA,
+ CAP_OSS,
+ CAP_MAX
+} capability_t;
+
+typedef enum {
+ ALSA_TYPE_SINK,
+ ALSA_TYPE_SOURCE,
+ ALSA_TYPE_OTHER,
+ ALSA_TYPE_MAX
+} alsa_type_t;
+
+struct device {
+ char *udi;
+ pa_module *module;
+};
+
+struct userdata {
+ pa_core *core;
+ pa_subscription *sub;
+ LibHalContext *ctx;
+ capability_t capability;
+ pa_dbus_connection *conn;
+ pa_hashmap *by_udi;
+ pa_hashmap *by_module;
+};
+
+struct timerdata {
+ struct userdata *u;
+ char *udi;
+};
+
+static alsa_type_t hal_device_get_alsa_type(LibHalContext *ctx, const char *udi,
+ DBusError *error)
+{
+ char *type;
+ alsa_type_t t;
+
+ type = libhal_device_get_property_string(ctx, udi, "alsa.type", error);
+ if (!type || dbus_error_is_set(error))
+ return FALSE;
+
+ if (!strcmp(type, "playback")) {
+ t = ALSA_TYPE_SINK;
+ } else if (!strcmp(type, "capture")) {
+ t = ALSA_TYPE_SOURCE;
+ } else {
+ t = ALSA_TYPE_OTHER;
+ }
+ libhal_free_string(type);
+
+ return t;
+}
+
+static int hal_device_get_alsa_card(LibHalContext *ctx, const char *udi,
+ DBusError *error)
+{
+ return libhal_device_get_property_int(ctx, udi, "alsa.card", error);
+}
+
+static int hal_device_get_alsa_device(LibHalContext *ctx, const char *udi,
+ DBusError *error)
+{
+ return libhal_device_get_property_int(ctx, udi, "alsa.device", error);
+}
+
+static void hal_device_free(struct device* d) {
+ pa_xfree(d->udi);
+ pa_xfree(d);
+}
+
+static void hal_device_free_cb(void *d, PA_GCC_UNUSED void *data) {
+ hal_device_free((struct device*) d);
+}
+
+static dbus_bool_t hal_device_add_alsa(struct userdata *u, const char *udi,
+ DBusError *error)
+{
+ char args[64];
+ alsa_type_t type;
+ int device, card;
+ pa_module *m;
+ struct device *d;
+ const char *module_name;
+
+ type = hal_device_get_alsa_type(u->ctx, udi, error);
+ if (dbus_error_is_set(error) || type == ALSA_TYPE_OTHER) {
+ return FALSE;
+ }
+
+ device = hal_device_get_alsa_device(u->ctx, udi, error);
+ if (dbus_error_is_set(error) || device != 0)
+ return FALSE;
+
+ card = hal_device_get_alsa_card(u->ctx, udi, error);
+ if (dbus_error_is_set(error))
+ return FALSE;
+
+ module_name = (type == ALSA_TYPE_SINK) ? "module-alsa-sink"
+ : "module-alsa-source";
+ snprintf(args, sizeof(args), "device=hw:%u", card);
+ if (!(m = pa_module_load(u->core, module_name, args)))
+ return FALSE;
+
+ d = pa_xmalloc(sizeof(struct device));
+ d->udi = pa_xstrdup(udi);
+ d->module = m;
+
+ pa_hashmap_put(u->by_module, m, d);
+ pa_hashmap_put(u->by_udi, udi, d);
+
+ return TRUE;
+}
+
+static int hal_device_add_all(struct userdata *u, capability_t capability)
+{
+ DBusError error;
+ int i,n,count;
+ dbus_bool_t r;
+ char** udis;
+ const char* cap = capabilities[capability];
+
+ assert(capability < CAP_MAX);
+
+ pa_log_info(__FILE__": Trying capability %u (%s)", capability, cap);
+ dbus_error_init(&error);
+ udis = libhal_find_device_by_capability(u->ctx, cap, &n, &error);
+ if (dbus_error_is_set(&error)) {
+ pa_log_error(__FILE__": Error finding devices: %s: %s", error.name,
+ error.message);
+ dbus_error_free(&error);
+ return -1;
+ }
+ count = 0;
+ for (i = 0; i < n; ++i) {
+ switch(capability) {
+ case CAP_ALSA:
+ r = hal_device_add_alsa(u, udis[i], &error);
+ break;
+ case CAP_OSS:
+ /* r = hal_device_add_oss(u, udis[i], &error)
+ * break; */
+ case CAP_MAX:
+ default:
+ assert(FALSE);
+ break;
+ }
+
+ if (dbus_error_is_set(&error)) {
+ pa_log_error(__FILE__": Error adding device: %s: %s", error.name,
+ error.message);
+ dbus_error_free(&error);
+ count = -1;
+ break;
+ }
+ if (r)
+ ++count;
+ }
+
+ libhal_free_string_array(udis);
+ u->capability = capability;
+ return count;
+}
+
+static dbus_bool_t device_has_capability(LibHalContext *ctx, const char *udi,
+ const char* cap, DBusError *error)
+{
+ dbus_bool_t has_prop;
+ has_prop = libhal_device_property_exists(ctx, udi, "info.capabilities",
+ error);
+ if (!has_prop || dbus_error_is_set(error))
+ return FALSE;
+
+ return libhal_device_query_capability(ctx, udi, cap, error);
+}
+
+static void device_added_time_cb(pa_mainloop_api *ea, pa_time_event *ev,
+ const struct timeval *tv, void *userdata)
+{
+ DBusError error;
+ struct timerdata *td = (struct timerdata*) userdata;
+
+ dbus_error_init(&error);
+ if (!libhal_device_exists(td->u->ctx, td->udi, &error))
+ goto exit;
+
+ switch(td->u->capability) {
+ case CAP_ALSA:
+ hal_device_add_alsa(td->u, td->udi, &error);
+ break;
+ case CAP_OSS:
+ /* hal_device_add_oss(td->u, td->udi, &error);
+ * break; */
+ case CAP_MAX:
+ default:
+ /* not reached */
+ assert(FALSE);
+ break;
+ }
+
+exit:
+ if (dbus_error_is_set(&error)) {
+ pa_log_error(__FILE__": Error adding device: %s: %s", error.name,
+ error.message);
+ dbus_error_free(&error);
+ }
+
+ pa_xfree(td->udi);
+ pa_xfree(td);
+ ea->time_free(ev);
+}
+
+static void device_added_cb(LibHalContext *ctx, const char *udi)
+{
+ DBusError error;
+ struct timeval tv;
+ dbus_bool_t has_cap;
+ struct timerdata *t;
+ struct userdata *u = (struct userdata*) libhal_ctx_get_user_data(ctx);
+ const char* cap = capabilities[u->capability];
+
+ pa_log_debug(__FILE__": HAL Device added: %s", udi);
+
+ dbus_error_init(&error);
+ has_cap = device_has_capability(ctx, udi, cap, &error);
+ if (dbus_error_is_set(&error)) {
+ pa_log_error(__FILE__": Error getting capability: %s: %s", error.name,
+ error.message);
+ dbus_error_free(&error);
+ return;
+ }
+
+ /* skip it */
+ if (!has_cap)
+ return;
+
+ /* actually add the device one second later */
+ t = pa_xmalloc(sizeof(struct timerdata));
+ t->u = u;
+ t->udi = pa_xstrdup(udi);
+
+ gettimeofday(&tv, NULL);
+ tv.tv_sec += 1;
+ u->core->mainloop->time_new(u->core->mainloop, &tv,
+ device_added_time_cb, t);
+}
+
+static void device_removed_cb(LibHalContext* ctx, const char *udi)
+{
+ struct device *d;
+ struct userdata *u = (struct userdata*) libhal_ctx_get_user_data(ctx);
+
+ pa_log_debug(__FILE__": Device removed: %s", udi);
+ if ((d = pa_hashmap_remove(u->by_udi, udi))) {
+ d = pa_hashmap_remove(u->by_module, d->module);
+ pa_log_debug(__FILE__": Unloading: %s <%s>", d->module->name, d->module->argument);
+ pa_module_unload_request(d->module);
+ hal_device_free(d);
+ }
+}
+
+#if 0
+static void new_capability_cb(LibHalContext *ctx, const char *udi,
+ const char* capability)
+{
+}
+
+static void lost_capability_cb(LibHalContext *ctx, const char *udi,
+ const char* capability)
+{
+}
+
+static void property_modified_cb(LibHalContext *ctx, const char *udi,
+ const char* key,
+ dbus_bool_t is_removed,
+ dbus_bool_t is_added)
+{
+}
+#endif
+
+static void subscribe_notify_cb(pa_core *c, pa_subscription_event_type_t type,
+ uint32_t idx, void *userdata)
+{
+ pa_module *m;
+ struct device *d;
+ struct userdata *u = (struct userdata*) userdata;
+
+ /* only listen for module remove events */
+ if (type != (PA_SUBSCRIPTION_EVENT_MODULE|PA_SUBSCRIPTION_EVENT_REMOVE))
+ return;
+
+ if (!(m = pa_idxset_get_by_index(c->modules, idx)))
+ return;
+
+ /* we found the module, see if it's one we care about */
+ if ((d = pa_hashmap_remove(u->by_module, m))) {
+ pa_log_debug(__FILE__": Removing module #%u %s: %s",
+ m->index, m->name, d->udi);
+ d = pa_hashmap_remove(u->by_udi, d->udi);
+ hal_device_free(d);
+ }
+}
+
+
+static void pa_hal_context_free(LibHalContext* hal_ctx)
+{
+ DBusError error;
+
+ dbus_error_init(&error);
+ libhal_ctx_shutdown(hal_ctx, &error);
+ libhal_ctx_free(hal_ctx);
+
+ if (dbus_error_is_set(&error)) {
+ dbus_error_free(&error);
+ }
+}
+
+static void userdata_free(struct userdata *u) {
+ pa_hal_context_free(u->ctx);
+ pa_subscription_free(u->sub);
+ /* free the hashmap */
+ pa_hashmap_free(u->by_module, NULL, NULL);
+ /* free the devices with the hashmap */
+ pa_hashmap_free(u->by_udi, hal_device_free_cb, NULL);
+ pa_dbus_connection_unref(u->conn);
+ pa_xfree(u);
+}
+
+static LibHalContext* pa_hal_context_new(pa_core* c, DBusConnection *conn)
+{
+ DBusError error;
+ LibHalContext *hal_ctx = NULL;
+
+ dbus_error_init(&error);
+ if (!(hal_ctx = libhal_ctx_new())) {
+ pa_log_error(__FILE__": libhal_ctx_new() failed");
+ goto fail;
+ }
+
+ if (!libhal_ctx_set_dbus_connection(hal_ctx, conn)) {
+ pa_log_error(__FILE__": Error establishing DBUS connection: %s: %s",
+ error.name, error.message);
+ goto fail;
+ }
+
+ if (!libhal_ctx_init(hal_ctx, &error)) {
+ pa_log_error(__FILE__": Couldn't connect to hald: %s: %s",
+ error.name, error.message);
+ goto fail;
+ }
+
+ return hal_ctx;
+
+fail:
+ if (hal_ctx)
+ pa_hal_context_free(hal_ctx);
+
+ if (dbus_error_is_set(&error))
+ dbus_error_free(&error);
+
+ return NULL;
+}
+
+int pa__init(pa_core *c, pa_module*m) {
+ int n;
+ DBusError error;
+ pa_dbus_connection *conn;
+ struct userdata *u = NULL;
+ LibHalContext *hal_ctx = NULL;
+
+ assert(c);
+ assert(m);
+
+ dbus_error_init(&error);
+ if (!(conn = pa_dbus_bus_get(c, DBUS_BUS_SYSTEM, &error))) {
+ pa_log_error(__FILE__": Unable to contact DBUS system bus: %s: %s",
+ error.name, error.message);
+ dbus_error_free(&error);
+ return -1;
+ }
+
+ if (!(hal_ctx = pa_hal_context_new(c, pa_dbus_connection_get(conn)))) {
+ /* pa_hal_context_new() logs appropriate errors */
+ return -1;
+ }
+
+ u = pa_xmalloc(sizeof(struct userdata));
+ u->core = c;
+ u->ctx = hal_ctx;
+ u->conn = conn;
+ u->by_module = pa_hashmap_new(NULL, NULL);
+ u->by_udi = pa_hashmap_new(pa_idxset_string_hash_func,
+ pa_idxset_string_compare_func);
+ u->sub = pa_subscription_new(c, PA_SUBSCRIPTION_MASK_MODULE,
+ subscribe_notify_cb, (void*) u);
+ m->userdata = (void*) u;
+
+#if HAVE_ALSA
+ if ((n = hal_device_add_all(u, CAP_ALSA)) <= 0)
+#endif
+#if HAVE_OSS
+ if ((n = hal_device_add_all(u, CAP_OSS)) <= 0)
+#endif
+ {
+ pa_log_warn(__FILE__": failed to detect any sound hardware.");
+ userdata_free(u);
+ return -1;
+ }
+
+ libhal_ctx_set_user_data(hal_ctx, (void*) u);
+ libhal_ctx_set_device_added(hal_ctx, device_added_cb);
+ libhal_ctx_set_device_removed(hal_ctx, device_removed_cb);
+
+ dbus_error_init(&error);
+ if (!libhal_device_property_watch_all(hal_ctx, &error)) {
+ pa_log_error(__FILE__": error monitoring device list: %s: %s",
+ error.name, error.message);
+ dbus_error_free(&error);
+ userdata_free(u);
+ return -1;
+ }
+
+ /*
+ libhal_ctx_set_device_new_capability(hal_ctx, new_capability_cb);
+ libhal_ctx_set_device_lost_capability(hal_ctx, lost_capability_cb);
+ libhal_ctx_set_device_property_modified(hal_ctx, property_modified_cb);
+ */
+
+ pa_log_info(__FILE__": loaded %i modules.", n);
+
+ return 0;
+}
+
+
+void pa__done(PA_GCC_UNUSED pa_core *c, pa_module *m) {
+ assert (c && m);
+
+ /* free the user data */
+ userdata_free(m->userdata);
+}
generated by cgit (git 2.34.1) at 2024-11-12 06:39:10 +0000