Commit 8d58243f authored by Julian Bouzas's avatar Julian Bouzas

module-pw-alsa-udev: start the alsa monitor and create the alsa nodes

parent f5a51c6a
......@@ -23,6 +23,22 @@ void simple_endpoint_link_factory (WpFactory * factory, GType type,
void
wireplumber__module_init (WpModule * module, WpCore * core, GVariant * args)
{
WpRemotePipewire *rp;
/* Get the remote pipewire */
rp = wp_core_get_global (core, WP_GLOBAL_REMOTE_PIPEWIRE);
if (!rp) {
g_critical ("module-pipewire cannot be loaded without a registered "
"WpRemotePipewire object");
return;
}
/* Load the client-device and adapter modules */
wp_remote_pipewire_module_load(rp, "libpipewire-module-client-device", NULL,
NULL, NULL, NULL);
wp_remote_pipewire_module_load(rp, "libpipewire-module-adapter", NULL, NULL,
NULL, NULL);
/* Register simple-endpoint and simple-endpoint-link */
wp_factory_new (core, "pipewire-simple-endpoint",
simple_endpoint_factory);
......
......@@ -11,9 +11,16 @@
* and automatically creates endpoints for all alsa device nodes that appear
*/
#include <wp/wp.h>
#include <spa/utils/names.h>
#include <spa/monitor/monitor.h>
#include <pipewire/pipewire.h>
#include <spa/param/audio/format-utils.h>
#include <wp/wp.h>
struct monitor {
struct spa_handle *handle;
struct spa_monitor *monitor;
struct spa_list device_list;
};
struct impl
{
......@@ -21,6 +28,36 @@ struct impl
WpRemotePipewire *remote_pipewire;
GHashTable *registered_endpoints;
GVariant *streams;
/* The alsa monitor */
struct monitor monitor;
};
struct device {
struct impl *impl;
struct spa_list link;
uint32_t id;
struct pw_properties *props;
struct spa_handle *handle;
struct pw_proxy *proxy;
struct spa_device *device;
struct spa_hook device_listener;
struct spa_list node_list;
};
struct node {
struct impl *impl;
struct device *device;
struct spa_list link;
uint32_t id;
struct pw_properties *props;
struct pw_proxy *proxy;
struct spa_node *node;
};
static void
......@@ -114,6 +151,281 @@ on_global_removed (WpRemotePipewire *rp, guint id, gpointer d)
g_hash_table_remove (impl->registered_endpoints, GUINT_TO_POINTER(id));
}
static struct node *
create_node(struct impl *impl, struct device *dev, uint32_t id,
const struct spa_device_object_info *info)
{
struct node *node;
const char *str;
/* Check if the type is a node */
if (info->type != SPA_TYPE_INTERFACE_Node)
return NULL;
/* Create the node */
node = g_slice_new0(struct node);
/* Set the node properties */
node->props = pw_properties_copy(dev->props);
pw_properties_update(node->props, info->props);
str = pw_properties_get(dev->props, SPA_KEY_DEVICE_NICK);
if (str == NULL)
str = pw_properties_get(dev->props, SPA_KEY_DEVICE_NAME);
if (str == NULL)
str = pw_properties_get(dev->props, SPA_KEY_DEVICE_ALIAS);
if (str == NULL)
str = "alsa-device";
pw_properties_set(node->props, PW_KEY_NODE_NAME, str);
pw_properties_set(node->props, "factory.name", info->factory_name);
pw_properties_set(node->props, "merger.monitor", "1");
/* Set the node info */
node->impl = impl;
node->device = dev;
node->id = id;
node->proxy = wp_remote_pipewire_create_object(impl->remote_pipewire,
"adapter", PW_TYPE_INTERFACE_Node, &node->props->dict);
if (!node->proxy) {
g_slice_free (struct node, node);
return NULL;
}
/* Add the node to the list */
spa_list_append(&dev->node_list, &node->link);
return node;
}
static void
update_node(struct impl *impl, struct device *dev, struct node *node,
const struct spa_device_object_info *info)
{
/* Just update the properties */
pw_properties_update(node->props, info->props);
}
static void destroy_node(struct impl *impl, struct device *dev, struct node *node)
{
/* Remove the node from the list */
spa_list_remove(&node->link);
/* Destroy the proxy node */
pw_proxy_destroy(node->proxy);
/* Destroy the node */
g_slice_free (struct node, node);
}
static struct node *
find_node(struct device *dev, uint32_t id)
{
struct node *node;
/* Find the node in the list */
spa_list_for_each(node, &dev->node_list, link) {
if (node->id == id)
return node;
}
return NULL;
}
static void
device_object_info(void *data, uint32_t id,
const struct spa_device_object_info *info)
{
struct device *dev = data;
struct impl *impl = dev->impl;
struct node *node = NULL;
/* Find the node */
node = find_node(dev, id);
if (info) {
/* Just update the node if it already exits, otherwise create it */
if (node)
update_node(impl, dev, node, info);
else
create_node(impl, dev, id, info);
} else {
/* Just remove the node if it already exists */
if (node)
destroy_node(impl, dev, node);
}
}
static void
device_info(void *data, const struct spa_device_info *info)
{
struct device *dev = data;
pw_properties_update(dev->props, info->props);
}
static const struct spa_device_events device_events = {
SPA_VERSION_DEVICE_EVENTS,
.info = device_info,
.object_info = device_object_info
};
static struct device*
create_device(struct impl *impl, uint32_t id,
const struct spa_monitor_object_info *info) {
struct device *dev;
struct spa_handle *handle;
int res;
void *iface;
/* Check if the type is a device */
if (info->type != SPA_TYPE_INTERFACE_Device)
return NULL;
/* Load the device handle */
handle = (struct spa_handle *)wp_remote_pipewire_load_spa_handle (
impl->remote_pipewire, info->factory_name, info->props);
if (!handle)
return NULL;
/* Get the handle interface */
res = spa_handle_get_interface(handle, info->type, &iface);
if (res < 0) {
pw_unload_spa_handle(handle);
return NULL;
}
/* Create the device */
dev = g_slice_new0(struct device);
dev->impl = impl;
dev->id = id;
dev->handle = handle;
dev->device = iface;
dev->props = pw_properties_new_dict(info->props);
dev->proxy = wp_remote_pipewire_export (impl->remote_pipewire, info->type, dev->props, dev->device, 0);
if (!dev->proxy) {
pw_unload_spa_handle(handle);
return NULL;
}
spa_list_init(&dev->node_list);
/* Add device listener for events */
spa_device_add_listener(dev->device, &dev->device_listener, &device_events,
dev);
/* Add the device to the list */
spa_list_append(&impl->monitor.device_list, &dev->link);
return dev;
}
static void
update_device(struct impl *impl, struct device *dev,
const struct spa_monitor_object_info *info)
{
/* Make sure the device and its info are valid */
g_return_if_fail (dev);
g_return_if_fail (info);
/* Update the properties of the device */
pw_properties_update(dev->props, info->props);
}
static void
destroy_device(struct impl *impl, struct device *dev)
{
/* Remove the device from the list */
spa_list_remove(&dev->link);
/* Remove the device listener */
spa_hook_remove(&dev->device_listener);
/* Destroy the device proxy */
pw_proxy_destroy(dev->proxy);
/* Unload the device handle */
pw_unload_spa_handle(dev->handle);
/* Destroy the object */
g_slice_free (struct device, dev);
}
static struct device *
find_device(struct impl *impl, uint32_t id)
{
struct device *dev;
/* Find the device in the list */
spa_list_for_each(dev, &impl->monitor.device_list, link) {
if (dev->id == id)
return dev;
}
return NULL;
}
static int
monitor_object_info(gpointer data, uint32_t id,
const struct spa_monitor_object_info *info)
{
struct impl *impl = data;
struct device *dev = NULL;
/* Find the device */
dev = find_device(impl, id);
if (info) {
/* Just update the device if it already exits, otherwise create it */
if (dev)
update_device(impl, dev, info);
else
if (!create_device(impl, id, info))
return -ENOMEM;
} else {
/* Just remove the device if it already exists, otherwise return error */
if (dev)
destroy_device(impl, dev);
else
return -ENODEV;
}
return 0;
}
static const struct spa_monitor_callbacks monitor_callbacks =
{
SPA_VERSION_MONITOR_CALLBACKS,
.object_info = monitor_object_info,
};
static void
start_monitor (WpRemotePipewire *remote, WpRemoteState state, gpointer data)
{
struct impl *impl = data;
struct spa_handle *handle;
int res;
void *iface;
/* Load the monitor handle */
handle = (struct spa_handle *)wp_remote_pipewire_load_spa_handle (
impl->remote_pipewire, SPA_NAME_API_ALSA_MONITOR, NULL);
g_return_if_fail (handle);
/* Get the handle interface */
res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Monitor, &iface);
if (res < 0) {
g_critical ("module-pw-alsa-udev cannot get monitor interface");
pw_unload_spa_handle(handle);
return;
}
/* Init the monitor data */
impl->monitor.handle = handle;
impl->monitor.monitor = iface;
spa_list_init(&impl->monitor.device_list);
/* Set the monitor callbacks */
spa_monitor_set_callbacks(impl->monitor.monitor, &monitor_callbacks, impl);
}
static void
module_destroy (gpointer data)
{
......@@ -159,6 +471,12 @@ wireplumber__module_init (WpModule * module, WpCore * core, GVariant * args)
/* Set destroy callback for impl */
wp_module_set_destroy_callback (module, module_destroy, impl);
/* Add the spa lib */
wp_remote_pipewire_add_spa_lib (rp, "api.alsa.*", "alsa/libspa-alsa");
/* Start the monitor when the connected callback is triggered */
g_signal_connect(rp, "state-changed::connected", (GCallback)start_monitor, impl);
/* Register the global addded/removed callbacks */
g_signal_connect(rp, "global-added::node", (GCallback)on_node_added, impl);
g_signal_connect(rp, "global-removed", (GCallback)on_global_removed, impl);
......
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