MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("ALSA sequencer MIDI-through client");
MODULE_LICENSE("GPL");
-MODULE_CLASSES("{sound}");
-MODULE_SUPPORTED_DEVICE("sound");
+MODULE_ALIAS("snd-seq-client-" __stringify(SNDRV_SEQ_CLIENT_DUMMY));
static int ports = 1;
static int duplex = 0;
module_param(duplex, bool, 0444);
MODULE_PARM_DESC(duplex, "create DUPLEX ports");
-typedef struct snd_seq_dummy_port {
+struct snd_seq_dummy_port {
int client;
int port;
int duplex;
int connect;
-} snd_seq_dummy_port_t;
+};
static int my_client = -1;
* Note: this callback is called only after all subscribers are removed.
*/
static int
-dummy_unuse(void *private_data, snd_seq_port_subscribe_t *info)
+dummy_unuse(void *private_data, struct snd_seq_port_subscribe *info)
{
- snd_seq_dummy_port_t *p;
+ struct snd_seq_dummy_port *p;
int i;
- snd_seq_event_t ev;
+ struct snd_seq_event ev;
- p = snd_magic_cast(snd_seq_dummy_port_t, private_data, return -EINVAL);
+ p = private_data;
memset(&ev, 0, sizeof(ev));
if (p->duplex)
ev.source.port = p->connect;
* event input callback - just redirect events to subscribers
*/
static int
-dummy_input(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int hop)
+dummy_input(struct snd_seq_event *ev, int direct, void *private_data,
+ int atomic, int hop)
{
- snd_seq_dummy_port_t *p;
- snd_seq_event_t tmpev;
+ struct snd_seq_dummy_port *p;
+ struct snd_seq_event tmpev;
- p = snd_magic_cast(snd_seq_dummy_port_t, private_data, return -EINVAL);
+ p = private_data;
if (ev->source.client == SNDRV_SEQ_CLIENT_SYSTEM ||
ev->type == SNDRV_SEQ_EVENT_KERNEL_ERROR)
return 0; /* ignore system messages */
- /* save the original sender */
- tmpev.type = SNDRV_SEQ_EVENT_KERNEL_QUOTE;
- tmpev.flags = (ev->flags & ~SNDRV_SEQ_EVENT_LENGTH_MASK)
- | SNDRV_SEQ_EVENT_LENGTH_FIXED;
- tmpev.tag = ev->tag;
- tmpev.time = ev->time;
- tmpev.data.quote.origin = ev->source;
- tmpev.data.quote.event = ev;
+ tmpev = *ev;
if (p->duplex)
tmpev.source.port = p->connect;
else
static void
dummy_free(void *private_data)
{
- snd_seq_dummy_port_t *p;
-
- p = snd_magic_cast(snd_seq_dummy_port_t, private_data, return);
- snd_magic_kfree(p);
+ kfree(private_data);
}
/*
* create a port
*/
-static snd_seq_dummy_port_t __init *
+static struct snd_seq_dummy_port __init *
create_port(int idx, int type)
{
- snd_seq_port_info_t pinfo;
- snd_seq_port_callback_t pcb;
- snd_seq_dummy_port_t *rec;
+ struct snd_seq_port_info pinfo;
+ struct snd_seq_port_callback pcb;
+ struct snd_seq_dummy_port *rec;
- if ((rec = snd_magic_kcalloc(snd_seq_dummy_port_t, 0, GFP_KERNEL)) == NULL)
+ if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL)
return NULL;
rec->client = my_client;
pcb.private_data = rec;
pinfo.kernel = &pcb;
if (snd_seq_kernel_client_ctl(my_client, SNDRV_SEQ_IOCTL_CREATE_PORT, &pinfo) < 0) {
- snd_magic_kfree(rec);
+ kfree(rec);
return NULL;
}
rec->port = pinfo.addr.port;
static int __init
register_client(void)
{
- snd_seq_client_callback_t cb;
- snd_seq_client_info_t cinfo;
- snd_seq_dummy_port_t *rec1, *rec2;
+ struct snd_seq_dummy_port *rec1, *rec2;
int i;
if (ports < 1) {
}
/* create client */
- memset(&cb, 0, sizeof(cb));
- cb.allow_input = 1;
- cb.allow_output = 1;
- my_client = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_DUMMY, &cb);
+ my_client = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_DUMMY,
+ "Midi Through");
if (my_client < 0)
return my_client;
- /* set client name */
- memset(&cinfo, 0, sizeof(cinfo));
- cinfo.client = my_client;
- cinfo.type = KERNEL_CLIENT;
- strcpy(cinfo.name, "Midi Through");
- snd_seq_kernel_client_ctl(my_client, SNDRV_SEQ_IOCTL_SET_CLIENT_INFO, &cinfo);
-
/* create ports */
for (i = 0; i < ports; i++) {
rec1 = create_port(i, 0);
static int __init alsa_seq_dummy_init(void)
{
- return register_client();
+ int err;
+ snd_seq_autoload_lock();
+ err = register_client();
+ snd_seq_autoload_unlock();
+ return err;
}
static void __exit alsa_seq_dummy_exit(void)