diff options
Diffstat (limited to 'sound/firewire/digi00x/digi00x-transaction.c')
| -rw-r--r-- | sound/firewire/digi00x/digi00x-transaction.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/sound/firewire/digi00x/digi00x-transaction.c b/sound/firewire/digi00x/digi00x-transaction.c index 8bf5ed5e5f3e..554324d8c602 100644 --- a/sound/firewire/digi00x/digi00x-transaction.c +++ b/sound/firewire/digi00x/digi00x-transaction.c @@ -9,6 +9,18 @@ #include <sound/asound.h> #include "digi00x.h" +static int fill_midi_message(struct snd_rawmidi_substream *substream, u8 *buf) +{ + int bytes; + + buf[0] = 0x80; + bytes = snd_rawmidi_transmit_peek(substream, buf + 1, 2); + if (bytes >= 0) + buf[3] = 0xc0 | bytes; + + return bytes; +} + static void handle_midi_control(struct snd_dg00x *dg00x, __be32 *buf, unsigned int length) { @@ -102,15 +114,24 @@ int snd_dg00x_transaction_register(struct snd_dg00x *dg00x) return err; err = snd_dg00x_transaction_reregister(dg00x); - if (err < 0) { - fw_core_remove_address_handler(&dg00x->async_handler); - dg00x->async_handler.address_callback = NULL; - } + if (err < 0) + goto error; + + err = snd_fw_async_midi_port_init(&dg00x->out_control, dg00x->unit, + DG00X_ADDR_BASE + DG00X_OFFSET_MMC, + 4, fill_midi_message); + if (err < 0) + goto error; return err; +error: + fw_core_remove_address_handler(&dg00x->async_handler); + dg00x->async_handler.address_callback = NULL; + return err; } void snd_dg00x_transaction_unregister(struct snd_dg00x *dg00x) { + snd_fw_async_midi_port_destroy(&dg00x->out_control); fw_core_remove_address_handler(&dg00x->async_handler); } |