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| author | Clemens Ladisch <clemens@ladisch.de> | 2009-06-22 10:01:59 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-06-22 11:11:49 +0200 |
| commit | 6423f9ea8035138d70bae1a278d3b57b743f8b3e (patch) | |
| tree | ea367c24fdcac966da4f51b1cc678f995f19dcff /sound/core/seq | |
| parent | 07a2039b8eb0af4ff464efd3dfd95de5c02648c6 (diff) | |
| download | lwn-6423f9ea8035138d70bae1a278d3b57b743f8b3e.tar.gz lwn-6423f9ea8035138d70bae1a278d3b57b743f8b3e.zip | |
sound: seq_midi_event: fix decoding of (N)RPN events
When decoding (N)RPN sequencer events into raw MIDI commands, the
extra_decode_xrpn() function had accidentally swapped the MSB and LSB
controller values of both the parameter number and the data value.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/seq')
| -rw-r--r-- | sound/core/seq/seq_midi_event.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/core/seq/seq_midi_event.c b/sound/core/seq/seq_midi_event.c index 8284f176a342..b5d6ea4904c0 100644 --- a/sound/core/seq/seq_midi_event.c +++ b/sound/core/seq/seq_midi_event.c @@ -504,10 +504,10 @@ static int extra_decode_xrpn(struct snd_midi_event *dev, unsigned char *buf, if (dev->nostat && count < 12) return -ENOMEM; cmd = MIDI_CMD_CONTROL|(ev->data.control.channel & 0x0f); - bytes[0] = ev->data.control.param & 0x007f; - bytes[1] = (ev->data.control.param & 0x3f80) >> 7; - bytes[2] = ev->data.control.value & 0x007f; - bytes[3] = (ev->data.control.value & 0x3f80) >> 7; + bytes[0] = (ev->data.control.param & 0x3f80) >> 7; + bytes[1] = ev->data.control.param & 0x007f; + bytes[2] = (ev->data.control.value & 0x3f80) >> 7; + bytes[3] = ev->data.control.value & 0x007f; if (cmd != dev->lastcmd && !dev->nostat) { if (count < 9) return -ENOMEM; |