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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2017-04-14 16:46:31 +0900
committerTakashi Iwai <tiwai@suse.de>2017-04-14 14:50:40 +0200
commit1f94205d2225339c77e64d5872ec575ee2815720 (patch)
treeb746a4d5fa927373187ba1343d9dfc276880d743 /sound
parent3e7dc65ca001a6e40e78b912c6146ec013a3b49a (diff)
ALSA: firewire-tascam: move message parameters for async midi port
Units on TASCAM FireWire series handle MIDI messages with support for running status. Drivers for the series should remember current running status and transfer valid MIDI messages. For this purpose, current ALSA driver for the series has some members in its top-level structure. This is due to better abstraction of async midi port. Nowadays, the abstraction was localized just for the driver. This commit moves the members to structure for async midi port. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/firewire/tascam/tascam-midi.c3
-rw-r--r--sound/firewire/tascam/tascam-transaction.c33
-rw-r--r--sound/firewire/tascam/tascam.h4
3 files changed, 19 insertions, 21 deletions
diff --git a/sound/firewire/tascam/tascam-midi.c b/sound/firewire/tascam/tascam-midi.c
index 901df81129bb..760f72a86c27 100644
--- a/sound/firewire/tascam/tascam-midi.c
+++ b/sound/firewire/tascam/tascam-midi.c
@@ -20,9 +20,6 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream)
snd_fw_async_midi_port_init(&tscm->out_ports[substream->number]);
- /* Initialize internal status. */
- tscm->running_status[substream->number] = 0;
- tscm->on_sysex[substream->number] = 0;
return 0;
}
diff --git a/sound/firewire/tascam/tascam-transaction.c b/sound/firewire/tascam/tascam-transaction.c
index a248a4ae0353..8967c52f5032 100644
--- a/sound/firewire/tascam/tascam-transaction.c
+++ b/sound/firewire/tascam/tascam-transaction.c
@@ -58,39 +58,38 @@ static inline int calculate_message_bytes(u8 status)
return -EINVAL;
}
-static int fill_message(struct snd_rawmidi_substream *substream, u8 *buf)
+static int fill_message(struct snd_fw_async_midi_port *port,
+ struct snd_rawmidi_substream *substream)
{
- struct snd_tscm *tscm = substream->rmidi->private_data;
- unsigned int port = substream->number;
int i, len, consume;
u8 *label, *msg;
u8 status;
/* The first byte is used for label, the rest for MIDI bytes. */
- label = buf;
- msg = buf + 1;
+ label = port->buf;
+ msg = port->buf + 1;
consume = snd_rawmidi_transmit_peek(substream, msg, 3);
if (consume == 0)
return 0;
/* On exclusive message. */
- if (tscm->on_sysex[port]) {
+ if (port->on_sysex) {
/* Seek the end of exclusives. */
for (i = 0; i < consume; ++i) {
if (msg[i] == 0xf7) {
- tscm->on_sysex[port] = false;
+ port->on_sysex = false;
break;
}
}
/* At the end of exclusive message, use label 0x07. */
- if (!tscm->on_sysex[port]) {
+ if (!port->on_sysex) {
consume = i + 1;
- *label = (port << 4) | 0x07;
+ *label = (substream->number << 4) | 0x07;
/* During exclusive message, use label 0x04. */
} else if (consume == 3) {
- *label = (port << 4) | 0x04;
+ *label = (substream->number << 4) | 0x04;
/* We need to fill whole 3 bytes. Go to next change. */
} else {
return 0;
@@ -101,12 +100,12 @@ static int fill_message(struct snd_rawmidi_substream *substream, u8 *buf)
/* The beginning of exclusives. */
if (msg[0] == 0xf0) {
/* Transfer it in next chance in another condition. */
- tscm->on_sysex[port] = true;
+ port->on_sysex = true;
return 0;
} else {
/* On running-status. */
if ((msg[0] & 0x80) != 0x80)
- status = tscm->running_status[port];
+ status = port->running_status;
else
status = msg[0];
@@ -124,18 +123,18 @@ static int fill_message(struct snd_rawmidi_substream *substream, u8 *buf)
msg[2] = msg[1];
msg[1] = msg[0];
- msg[0] = tscm->running_status[port];
+ msg[0] = port->running_status;
} else {
/* Enough MIDI bytes were not retrieved. */
if (consume < len)
return 0;
consume = len;
- tscm->running_status[port] = msg[0];
+ port->running_status = msg[0];
}
}
- *label = (port << 4) | (msg[0] >> 4);
+ *label = (substream->number << 4) | (msg[0] >> 4);
}
if (len > 0 && len < 3)
@@ -196,7 +195,7 @@ static void midi_port_work(struct work_struct *work)
* Later, snd_rawmidi_transmit_ack() is called.
*/
memset(port->buf, 0, 4);
- port->consume_bytes = fill_message(substream, port->buf);
+ port->consume_bytes = fill_message(port, substream);
if (port->consume_bytes <= 0) {
/* Do it in next chance, immediately. */
if (port->consume_bytes == 0) {
@@ -240,6 +239,8 @@ void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port)
{
port->idling = true;
port->error = false;
+ port->running_status = 0;
+ port->on_sysex = false;
}
static void handle_midi_tx(struct fw_card *card, struct fw_request *request,
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h
index 37ec2016d033..08ecfae5c584 100644
--- a/sound/firewire/tascam/tascam.h
+++ b/sound/firewire/tascam/tascam.h
@@ -55,6 +55,8 @@ struct snd_fw_async_midi_port {
struct fw_transaction transaction;
u8 buf[4];
+ u8 running_status;
+ bool on_sysex;
struct snd_rawmidi_substream *substream;
int consume_bytes;
@@ -87,8 +89,6 @@ struct snd_tscm {
/* For MIDI message outgoing transactions. */
struct snd_fw_async_midi_port out_ports[TSCM_MIDI_OUT_PORT_MAX];
- u8 running_status[TSCM_MIDI_OUT_PORT_MAX];
- bool on_sysex[TSCM_MIDI_OUT_PORT_MAX];
};
#define TSCM_ADDR_BASE 0xffff00000000ull