diff options
| -rw-r--r-- | sound/firewire/oxfw/oxfw-stream.c | 72 |
1 files changed, 42 insertions, 30 deletions
diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c index 36c3dd84d189..80c9dc13f1b5 100644 --- a/sound/firewire/oxfw/oxfw-stream.c +++ b/sound/firewire/oxfw/oxfw-stream.c @@ -735,45 +735,57 @@ int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) /* use oPCR[0] if exists */ if (plugs[1] > 0) { err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); - if (err < 0) - goto end; + if (err < 0) { + if (err != -ENXIO) + return err; - for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { - format = oxfw->tx_stream_formats[i]; - if (format == NULL) - continue; - err = snd_oxfw_stream_parse_format(format, &formation); - if (err < 0) - continue; - - /* Add one MIDI port. */ - if (formation.midi > 0) - oxfw->midi_input_ports = 1; - } + // The oPCR is not available for isoc communication. + err = 0; + } else { + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + format = oxfw->tx_stream_formats[i]; + if (format == NULL) + continue; + err = snd_oxfw_stream_parse_format(format, + &formation); + if (err < 0) + continue; + + /* Add one MIDI port. */ + if (formation.midi > 0) + oxfw->midi_input_ports = 1; + } - oxfw->has_output = true; + oxfw->has_output = true; + } } /* use iPCR[0] if exists */ if (plugs[0] > 0) { err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); - if (err < 0) - goto end; + if (err < 0) { + if (err != -ENXIO) + return err; - for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { - format = oxfw->rx_stream_formats[i]; - if (format == NULL) - continue; - err = snd_oxfw_stream_parse_format(format, &formation); - if (err < 0) - continue; - - /* Add one MIDI port. */ - if (formation.midi > 0) - oxfw->midi_output_ports = 1; - } + // The iPCR is not available for isoc communication. + err = 0; + } else { + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + format = oxfw->rx_stream_formats[i]; + if (format == NULL) + continue; + err = snd_oxfw_stream_parse_format(format, + &formation); + if (err < 0) + continue; + + /* Add one MIDI port. */ + if (formation.midi > 0) + oxfw->midi_output_ports = 1; + } - oxfw->has_input = true; + oxfw->has_input = true; + } } end: return err; |