diff options
Diffstat (limited to 'sound/core/seq/seq_dummy.c')
| -rw-r--r-- | sound/core/seq/seq_dummy.c | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/sound/core/seq/seq_dummy.c b/sound/core/seq/seq_dummy.c index cd5a4cad8881..783fc72c2ef6 100644 --- a/sound/core/seq/seq_dummy.c +++ b/sound/core/seq/seq_dummy.c @@ -20,15 +20,15 @@ are redirected to output port immediately. The routing can be done via aconnect program in alsa-utils. - Each client has a static client number 62 (= SNDRV_SEQ_CLIENT_DUMMY). + Each client has a static client number 14 (= SNDRV_SEQ_CLIENT_DUMMY). If you want to auto-load this module, you may add the following alias in your /etc/conf.modules file. - alias snd-seq-client-62 snd-seq-dummy + alias snd-seq-client-14 snd-seq-dummy - The module is loaded on demand for client 62, or /proc/asound/seq/ + The module is loaded on demand for client 14, or /proc/asound/seq/ is accessed. If you don't need this module to be loaded, alias - snd-seq-client-62 as "off". This will help modprobe. + snd-seq-client-14 as "off". This will help modprobe. The number of ports to be created can be specified via the module parameter "ports". For example, to create four ports, add the @@ -58,6 +58,12 @@ MODULE_PARM_DESC(ports, "number of ports to be created"); module_param(duplex, bool, 0444); MODULE_PARM_DESC(duplex, "create DUPLEX ports"); +#if IS_ENABLED(CONFIG_SND_SEQ_UMP) +static int ump; +module_param(ump, int, 0444); +MODULE_PARM_DESC(ump, "UMP conversion (0: no convert, 1: MIDI 1.0, 2: MIDI 2.0)"); +#endif + struct snd_seq_dummy_port { int client; int port; @@ -109,7 +115,8 @@ create_port(int idx, int type) struct snd_seq_port_callback pcb; struct snd_seq_dummy_port *rec; - if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL) + rec = kzalloc(sizeof(*rec), GFP_KERNEL); + if (!rec) return NULL; rec->client = my_client; @@ -126,6 +133,7 @@ create_port(int idx, int type) pinfo.capability |= SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE; if (duplex) pinfo.capability |= SNDRV_SEQ_PORT_CAP_DUPLEX; + pinfo.direction = SNDRV_SEQ_PORT_DIR_BIDIRECTION; pinfo.type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | SNDRV_SEQ_PORT_TYPE_SOFTWARE | SNDRV_SEQ_PORT_TYPE_PORT; @@ -150,6 +158,9 @@ static int __init register_client(void) { struct snd_seq_dummy_port *rec1, *rec2; +#if IS_ENABLED(CONFIG_SND_SEQ_UMP) + struct snd_seq_client *client; +#endif int i; if (ports < 1) { @@ -163,6 +174,25 @@ register_client(void) if (my_client < 0) return my_client; +#if IS_ENABLED(CONFIG_SND_SEQ_UMP) + client = snd_seq_kernel_client_get(my_client); + if (!client) + return -EINVAL; + switch (ump) { + case 1: + client->midi_version = SNDRV_SEQ_CLIENT_UMP_MIDI_1_0; + break; + case 2: + client->midi_version = SNDRV_SEQ_CLIENT_UMP_MIDI_2_0; + break; + default: + /* don't convert events but just pass-through */ + client->filter = SNDRV_SEQ_FILTER_NO_CONVERT; + break; + } + snd_seq_kernel_client_put(client); +#endif + /* create ports */ for (i = 0; i < ports; i++) { rec1 = create_port(i, 0); |