From 900896771a2f7ba126194911c58dc095fc0dd3d7 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Tue, 22 Jan 2019 22:17:01 +0900 Subject: [PATCH] ALSA: fireface: add model-dependent parameter for address range to receive async transaction In Fireface series, drivers can register destination address for asynchronous transaction which transfers MIDI messages from device. In former models, all of the transactions arrive at the registered address without any offset. In latter models, each of the transaction arrives at the registered address with sequential offset within 0x00 to 0x7f. This seems to be for discontinuity detection. This commit adds model-dependent member for the address range. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/fireface/ff-transaction.c | 2 +- sound/firewire/fireface/ff.c | 2 ++ sound/firewire/fireface/ff.h | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c index d3fde81..0506755 100644 --- a/sound/firewire/fireface/ff-transaction.c +++ b/sound/firewire/fireface/ff-transaction.c @@ -156,7 +156,7 @@ static int allocate_own_address(struct snd_ff *ff, int i) struct fw_address_region midi_msg_region; int err; - ff->async_handler.length = SND_FF_MAXIMIM_MIDI_QUADS * 4; + ff->async_handler.length = ff->spec->midi_addr_range; ff->async_handler.address_callback = handle_midi_msg; ff->async_handler.callback_data = ff; diff --git a/sound/firewire/fireface/ff.c b/sound/firewire/fireface/ff.c index fd9c980..c09a487 100644 --- a/sound/firewire/fireface/ff.c +++ b/sound/firewire/fireface/ff.c @@ -159,6 +159,7 @@ static const struct snd_ff_spec spec_ff800 = { .midi_out_ports = 1, .protocol = &snd_ff_protocol_ff800, .midi_high_addr = 0x000200000320ull, + .midi_addr_range = 12, }; static const struct snd_ff_spec spec_ff400 = { @@ -169,6 +170,7 @@ static const struct snd_ff_spec spec_ff400 = { .midi_out_ports = 2, .protocol = &snd_ff_protocol_ff400, .midi_high_addr = 0x0000801003f4ull, + .midi_addr_range = SND_FF_MAXIMIM_MIDI_QUADS * 4, }; static const struct snd_ff_spec spec_ucx = { diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h index ddcffb8..b86ca4f 100644 --- a/sound/firewire/fireface/ff.h +++ b/sound/firewire/fireface/ff.h @@ -54,6 +54,7 @@ struct snd_ff_spec { const struct snd_ff_protocol *protocol; u64 midi_high_addr; + u8 midi_addr_range; }; struct snd_ff { -- 2.7.4