path: root/sound/firewire
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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2019-01-22 22:17:00 +0900
committerTakashi Iwai <tiwai@suse.de>2019-01-22 17:20:49 +0100
commit6c644e4e954ddae26880d82e7aa4f551662cdae3 (patch)
tree0b2ab9086095939a06b5b196f654ec597dc22c4e /sound/firewire
parent9935d55b02906dec1b0795873cc4a1a7bb55b8f1 (diff)
ALSA: fireface: change prototype of handler for async transaction with MIDI messages
In a series of Fireface, devices transfer asynchronous transaction with MIDI messages. In the transaction, content is different depending on models. ALSA fireface driver has protocol-dependent handler to pick up MIDI messages from the content. In latter models of the series, the transaction is transferred to range of address sequentially. This seems to check continuity of transferred messages. This commit changes prototype of the handler to receive offset of address for received transactions. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire')
3 files changed, 9 insertions, 4 deletions
diff --git a/sound/firewire/fireface/ff-protocol-former.c b/sound/firewire/fireface/ff-protocol-former.c
index 9c0ae50e88d1..266e4892a818 100644
--- a/sound/firewire/fireface/ff-protocol-former.c
+++ b/sound/firewire/fireface/ff-protocol-former.c
@@ -375,7 +375,8 @@ static void ff800_finish_session(struct snd_ff *ff)
FF800_ISOC_COMM_STOP, &reg, sizeof(reg), 0);
-static void ff800_handle_midi_msg(struct snd_ff *ff, __le32 *buf, size_t length)
+static void ff800_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length)
int i;
@@ -502,7 +503,8 @@ static void ff400_finish_session(struct snd_ff *ff)
FF400_ISOC_COMM_STOP, &reg, sizeof(reg), 0);
-static void ff400_handle_midi_msg(struct snd_ff *ff, __le32 *buf, size_t length)
+static void ff400_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length)
int i;
diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c
index 065e045d3fb5..d3fde813ce17 100644
--- a/sound/firewire/fireface/ff-transaction.c
+++ b/sound/firewire/fireface/ff-transaction.c
@@ -146,7 +146,9 @@ static void handle_midi_msg(struct fw_card *card, struct fw_request *request,
fw_send_response(card, request, RCODE_COMPLETE);
- ff->spec->protocol->handle_midi_msg(ff, buf, length);
+ offset -= ff->async_handler.offset;
+ ff->spec->protocol->handle_midi_msg(ff, (unsigned int)offset, buf,
+ length);
static int allocate_own_address(struct snd_ff *ff, int i)
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index 8aea7920b57f..ddcffb8d85c6 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -103,7 +103,8 @@ enum snd_ff_clock_src {
struct snd_ff_protocol {
- void (*handle_midi_msg)(struct snd_ff *ff, __le32 *buf, size_t length);
+ void (*handle_midi_msg)(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length);
int (*get_clock)(struct snd_ff *ff, unsigned int *rate,
enum snd_ff_clock_src *src);
int (*switch_fetching_mode)(struct snd_ff *ff, bool enable);