From: Takashi Sakamoto Date: Sun, 21 Mar 2021 03:28:31 +0000 (+0900) Subject: ALSA: bebob: enable to deliver MIDI messages for multiple ports X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d2b6f15bc18ac8fbce25398290774c21f5b2cd44;p=linux.git ALSA: bebob: enable to deliver MIDI messages for multiple ports Current implementation of bebob driver doesn't correctly handle the case that the device has multiple MIDI ports. The cause is the number of MIDI conformant data channels is passed to AM824 data block processing layer. This commit fixes the bug. Signed-off-by: Takashi Sakamoto Link: https://lore.kernel.org/r/20210321032831.340278-4-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai --- diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 23579a73e0380..b612ee3e33b65 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -517,20 +517,22 @@ int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) static int keep_resources(struct snd_bebob *bebob, struct amdtp_stream *stream, unsigned int rate, unsigned int index) { - struct snd_bebob_stream_formation *formation; + unsigned int pcm_channels; + unsigned int midi_ports; struct cmp_connection *conn; int err; if (stream == &bebob->tx_stream) { - formation = bebob->tx_stream_formations + index; + pcm_channels = bebob->tx_stream_formations[index].pcm; + midi_ports = bebob->midi_input_ports; conn = &bebob->out_conn; } else { - formation = bebob->rx_stream_formations + index; + pcm_channels = bebob->rx_stream_formations[index].pcm; + midi_ports = bebob->midi_output_ports; conn = &bebob->in_conn; } - err = amdtp_am824_set_parameters(stream, rate, formation->pcm, - formation->midi, false); + err = amdtp_am824_set_parameters(stream, rate, pcm_channels, midi_ports, false); if (err < 0) return err;