[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/firewire/fireface/ff.c b/src/kernel/linux/v4.14/sound/firewire/fireface/ff.c
new file mode 100644
index 0000000..4974bc7
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/firewire/fireface/ff.c
@@ -0,0 +1,209 @@
+/*
+ * ff.c - a part of driver for RME Fireface series
+ *
+ * Copyright (c) 2015-2017 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "ff.h"
+
+#define OUI_RME 0x000a35
+
+MODULE_DESCRIPTION("RME Fireface series Driver");
+MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
+MODULE_LICENSE("GPL v2");
+
+static void name_card(struct snd_ff *ff)
+{
+ struct fw_device *fw_dev = fw_parent_device(ff->unit);
+
+ strcpy(ff->card->driver, "Fireface");
+ strcpy(ff->card->shortname, ff->spec->name);
+ strcpy(ff->card->mixername, ff->spec->name);
+ snprintf(ff->card->longname, sizeof(ff->card->longname),
+ "RME %s, GUID %08x%08x at %s, S%d", ff->spec->name,
+ fw_dev->config_rom[3], fw_dev->config_rom[4],
+ dev_name(&ff->unit->device), 100 << fw_dev->max_speed);
+}
+
+static void ff_free(struct snd_ff *ff)
+{
+ snd_ff_stream_destroy_duplex(ff);
+ snd_ff_transaction_unregister(ff);
+
+ fw_unit_put(ff->unit);
+
+ mutex_destroy(&ff->mutex);
+ kfree(ff);
+}
+
+static void ff_card_free(struct snd_card *card)
+{
+ ff_free(card->private_data);
+}
+
+static void do_registration(struct work_struct *work)
+{
+ struct snd_ff *ff = container_of(work, struct snd_ff, dwork.work);
+ int err;
+
+ if (ff->registered)
+ return;
+
+ err = snd_card_new(&ff->unit->device, -1, NULL, THIS_MODULE, 0,
+ &ff->card);
+ if (err < 0)
+ return;
+
+ err = snd_ff_transaction_register(ff);
+ if (err < 0)
+ goto error;
+
+ name_card(ff);
+
+ err = snd_ff_stream_init_duplex(ff);
+ if (err < 0)
+ goto error;
+
+ snd_ff_proc_init(ff);
+
+ err = snd_ff_create_midi_devices(ff);
+ if (err < 0)
+ goto error;
+
+ err = snd_ff_create_pcm_devices(ff);
+ if (err < 0)
+ goto error;
+
+ err = snd_ff_create_hwdep_devices(ff);
+ if (err < 0)
+ goto error;
+
+ err = snd_card_register(ff->card);
+ if (err < 0)
+ goto error;
+
+ ff->card->private_free = ff_card_free;
+ ff->card->private_data = ff;
+ ff->registered = true;
+
+ return;
+error:
+ snd_ff_transaction_unregister(ff);
+ snd_ff_stream_destroy_duplex(ff);
+ snd_card_free(ff->card);
+ dev_info(&ff->unit->device,
+ "Sound card registration failed: %d\n", err);
+}
+
+static int snd_ff_probe(struct fw_unit *unit,
+ const struct ieee1394_device_id *entry)
+{
+ struct snd_ff *ff;
+
+ ff = kzalloc(sizeof(struct snd_ff), GFP_KERNEL);
+ if (ff == NULL)
+ return -ENOMEM;
+
+ /* initialize myself */
+ ff->unit = fw_unit_get(unit);
+ dev_set_drvdata(&unit->device, ff);
+
+ mutex_init(&ff->mutex);
+ spin_lock_init(&ff->lock);
+ init_waitqueue_head(&ff->hwdep_wait);
+
+ ff->spec = (const struct snd_ff_spec *)entry->driver_data;
+
+ /* Register this sound card later. */
+ INIT_DEFERRABLE_WORK(&ff->dwork, do_registration);
+ snd_fw_schedule_registration(unit, &ff->dwork);
+
+ return 0;
+}
+
+static void snd_ff_update(struct fw_unit *unit)
+{
+ struct snd_ff *ff = dev_get_drvdata(&unit->device);
+
+ /* Postpone a workqueue for deferred registration. */
+ if (!ff->registered)
+ snd_fw_schedule_registration(unit, &ff->dwork);
+
+ snd_ff_transaction_reregister(ff);
+
+ if (ff->registered)
+ snd_ff_stream_update_duplex(ff);
+}
+
+static void snd_ff_remove(struct fw_unit *unit)
+{
+ struct snd_ff *ff = dev_get_drvdata(&unit->device);
+
+ /*
+ * Confirm to stop the work for registration before the sound card is
+ * going to be released. The work is not scheduled again because bus
+ * reset handler is not called anymore.
+ */
+ cancel_work_sync(&ff->dwork.work);
+
+ if (ff->registered) {
+ /* No need to wait for releasing card object in this context. */
+ snd_card_free_when_closed(ff->card);
+ } else {
+ /* Don't forget this case. */
+ ff_free(ff);
+ }
+}
+
+static const struct snd_ff_spec spec_ff400 = {
+ .name = "Fireface400",
+ .pcm_capture_channels = {18, 14, 10},
+ .pcm_playback_channels = {18, 14, 10},
+ .midi_in_ports = 2,
+ .midi_out_ports = 2,
+ .protocol = &snd_ff_protocol_ff400,
+};
+
+static const struct ieee1394_device_id snd_ff_id_table[] = {
+ /* Fireface 400 */
+ {
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_SPECIFIER_ID |
+ IEEE1394_MATCH_VERSION |
+ IEEE1394_MATCH_MODEL_ID,
+ .vendor_id = OUI_RME,
+ .specifier_id = 0x000a35,
+ .version = 0x000002,
+ .model_id = 0x101800,
+ .driver_data = (kernel_ulong_t)&spec_ff400,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(ieee1394, snd_ff_id_table);
+
+static struct fw_driver ff_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "snd-fireface",
+ .bus = &fw_bus_type,
+ },
+ .probe = snd_ff_probe,
+ .update = snd_ff_update,
+ .remove = snd_ff_remove,
+ .id_table = snd_ff_id_table,
+};
+
+static int __init snd_ff_init(void)
+{
+ return driver_register(&ff_driver.driver);
+}
+
+static void __exit snd_ff_exit(void)
+{
+ driver_unregister(&ff_driver.driver);
+}
+
+module_init(snd_ff_init);
+module_exit(snd_ff_exit);