/* entry points for broadcasting system events */
void snd_seq_system_broadcast(int client, int port, int type)
{
struct snd_seq_event ev;
if (setheader(&ev, client, port) < 0)
return;
ev.type = type;
snd_seq_kernel_client_dispatch(sysclient, &ev, 0, 0);
}
/* entry points for broadcasting system events */
int snd_seq_system_notify(int client, int port, struct snd_seq_event *ev)
{
ev->flags = SNDRV_SEQ_EVENT_LENGTH_FIXED;
ev->source.client = sysclient;
ev->source.port = announce_port;
ev->dest.client = client;
ev->dest.port = port;
return snd_seq_kernel_client_dispatch(sysclient, ev, 0, 0);
}
static void send_note(unsigned char notevalue, unsigned char velocity) {
struct snd_seq_event note;
int err;
if (client > 0) {
config_note(¬e, notevalue, velocity);
err = snd_seq_kernel_client_dispatch(client, ¬e, in_atomic(), 0);
if (err < 0) {
printk(KERN_ERR LOGPREFIX "Error dispatch client(%d) code:%d\n", client, err);
}
}
}
/*
* unuse callback - send ALL_SOUNDS_OFF and RESET_CONTROLLERS events
* to subscribers.
* Note: this callback is called only after all subscribers are removed.
*/
static int
dummy_unuse(void *private_data, struct snd_seq_port_subscribe *info)
{
struct snd_seq_dummy_port *p;
int i;
struct snd_seq_event ev;
p = private_data;
memset(&ev, 0, sizeof(ev));
if (p->duplex)
ev.source.port = p->connect;
else
ev.source.port = p->port;
ev.dest.client = SNDRV_SEQ_ADDRESS_SUBSCRIBERS;
ev.type = SNDRV_SEQ_EVENT_CONTROLLER;
for (i = 0; i < 16; i++) {
ev.data.control.channel = i;
ev.data.control.param = MIDI_CTL_ALL_SOUNDS_OFF;
snd_seq_kernel_client_dispatch(p->client, &ev, 0, 0);
ev.data.control.param = MIDI_CTL_RESET_CONTROLLERS;
snd_seq_kernel_client_dispatch(p->client, &ev, 0, 0);
}
return 0;
}
/*
* send events to all subscribed ports
*/
static void queue_broadcast_event(queue_t *q, snd_seq_event_t *ev, int atomic, int hop)
{
snd_seq_event_t sev;
sev = *ev;
sev.flags = SNDRV_SEQ_TIME_STAMP_TICK|SNDRV_SEQ_TIME_MODE_ABS;
sev.time.tick = q->timer->tick.cur_tick;
sev.queue = q->queue;
sev.data.queue.queue = q->queue;
/* broadcast events from Timer port */
sev.source.client = SNDRV_SEQ_CLIENT_SYSTEM;
sev.source.port = SNDRV_SEQ_PORT_SYSTEM_TIMER;
sev.dest.client = SNDRV_SEQ_ADDRESS_SUBSCRIBERS;
snd_seq_kernel_client_dispatch(SNDRV_SEQ_CLIENT_SYSTEM, &sev, atomic, hop);
}
/*
* 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)
{
snd_seq_dummy_port_t *p;
snd_seq_event_t tmpev;
p = private_data;
if (ev->source.client == SNDRV_SEQ_CLIENT_SYSTEM ||
ev->type == SNDRV_SEQ_EVENT_KERNEL_ERROR)
return 0; /* ignore system messages */
tmpev = *ev;
if (p->duplex)
tmpev.source.port = p->connect;
else
tmpev.source.port = p->port;
tmpev.dest.client = SNDRV_SEQ_ADDRESS_SUBSCRIBERS;
return snd_seq_kernel_client_dispatch(p->client, &tmpev, atomic, hop);
}
/* handle rawmidi input event (MIDI v1.0 stream) */
static void snd_midi_input_event(snd_rawmidi_substream_t * substream)
{
snd_rawmidi_runtime_t *runtime;
seq_midisynth_t *msynth;
snd_seq_event_t ev;
char buf[16], *pbuf;
long res, count;
if (substream == NULL)
return;
runtime = substream->runtime;
msynth = (seq_midisynth_t *) runtime->private_data;
if (msynth == NULL)
return;
memset(&ev, 0, sizeof(ev));
while (runtime->avail > 0) {
res = snd_rawmidi_kernel_read(substream, buf, sizeof(buf));
if (res <= 0)
continue;
if (msynth->parser == NULL)
continue;
pbuf = buf;
while (res > 0) {
count = snd_midi_event_encode(msynth->parser, pbuf, res, &ev);
if (count < 0)
break;
pbuf += count;
res -= count;
if (ev.type != SNDRV_SEQ_EVENT_NONE) {
ev.source.port = msynth->seq_port;
ev.dest.client = SNDRV_SEQ_ADDRESS_SUBSCRIBERS;
snd_seq_kernel_client_dispatch(msynth->seq_client, &ev, 1, 0);
/* clear event and reset header */
memset(&ev, 0, sizeof(ev));
}
}
}
}
