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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2020-01-13 11:46:29 +0300
committerTakashi Iwai <tiwai@suse.de>2020-01-13 12:44:00 +0300
commita9f47fcb5e25c088b91ed768061b2ab3602f7868 (patch)
tree15b3ef3202f3a50de107cfe1ae226dc48f208a28 /sound/firewire
parent41dbc792794acf520892afe40b7df4cc58a8f5f5 (diff)
downloadlinux-a9f47fcb5e25c088b91ed768061b2ab3602f7868.tar.xz
ALSA: dice: loosen stream format check for MIDI conformant data channel
ALSA dice driver expects devices to multiplex MIDI messages into first port of isochronous communication. Actually devices perform for it. However, check of stream format is invalid for second port of isochronous communication. As a result, when the device supports two ports for isochronous communication and the stream format is hard-coded, ALSA dice driver fails to start packet streaming. This commit loosens stream format check for MIDI conformant data channel. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20200113084630.14305-3-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire')
-rw-r--r--sound/firewire/dice/dice-stream.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
index 6a3d60913e10..8e0c0380b4c4 100644
--- a/sound/firewire/dice/dice-stream.c
+++ b/sound/firewire/dice/dice-stream.c
@@ -224,7 +224,6 @@ static int keep_dual_resources(struct snd_dice *dice, unsigned int rate,
struct amdtp_stream *stream;
struct fw_iso_resources *resources;
unsigned int pcm_cache;
- unsigned int midi_cache;
unsigned int pcm_chs;
unsigned int midi_ports;
@@ -233,7 +232,6 @@ static int keep_dual_resources(struct snd_dice *dice, unsigned int rate,
resources = &dice->tx_resources[i];
pcm_cache = dice->tx_pcm_chs[i][mode];
- midi_cache = dice->tx_midi_ports[i];
err = snd_dice_transaction_read_tx(dice,
params->size * i + TX_NUMBER_AUDIO,
reg, sizeof(reg));
@@ -242,7 +240,6 @@ static int keep_dual_resources(struct snd_dice *dice, unsigned int rate,
resources = &dice->rx_resources[i];
pcm_cache = dice->rx_pcm_chs[i][mode];
- midi_cache = dice->rx_midi_ports[i];
err = snd_dice_transaction_read_rx(dice,
params->size * i + RX_NUMBER_AUDIO,
reg, sizeof(reg));
@@ -253,10 +250,10 @@ static int keep_dual_resources(struct snd_dice *dice, unsigned int rate,
midi_ports = be32_to_cpu(reg[1]);
// These are important for developer of this driver.
- if (pcm_chs != pcm_cache || midi_ports != midi_cache) {
+ if (pcm_chs != pcm_cache) {
dev_info(&dice->unit->device,
- "cache mismatch: pcm: %u:%u, midi: %u:%u\n",
- pcm_chs, pcm_cache, midi_ports, midi_cache);
+ "cache mismatch: pcm: %u:%u, midi: %u\n",
+ pcm_chs, pcm_cache, midi_ports);
return -EPROTO;
}