Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 168 insertions, 0 deletions

diff --git a/sound/firewire/motu/motu.h b/sound/firewire/motu/motu.h
new file mode 100644
index 000000000..fd5327d30
--- /dev/null
+++ b/sound/firewire/motu/motu.h
@@ -0,0 +1,168 @@
+/*
+ * motu.h - a part of driver for MOTU FireWire series
+ *
+ * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#ifndef SOUND_FIREWIRE_MOTU_H_INCLUDED
+#define SOUND_FIREWIRE_MOTU_H_INCLUDED
+
+#include <linux/device.h>
+#include <linux/firewire.h>
+#include <linux/firewire-constants.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/compat.h>
+#include <linux/sched/signal.h>
+
+#include <sound/control.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/info.h>
+#include <sound/rawmidi.h>
+#include <sound/firewire.h>
+#include <sound/hwdep.h>
+
+#include "../lib.h"
+#include "../amdtp-stream.h"
+#include "../iso-resources.h"
+
+struct snd_motu_packet_format {
+	unsigned char midi_flag_offset;
+	unsigned char midi_byte_offset;
+	unsigned char pcm_byte_offset;
+
+	unsigned char msg_chunks;
+	unsigned char fixed_part_pcm_chunks[3];
+	unsigned char differed_part_pcm_chunks[3];
+};
+
+struct snd_motu {
+	struct snd_card *card;
+	struct fw_unit *unit;
+	struct mutex mutex;
+	spinlock_t lock;
+
+	bool registered;
+	struct delayed_work dwork;
+
+	/* Model dependent information. */
+	const struct snd_motu_spec *spec;
+
+	/* For packet streaming */
+	struct snd_motu_packet_format tx_packet_formats;
+	struct snd_motu_packet_format rx_packet_formats;
+	struct amdtp_stream tx_stream;
+	struct amdtp_stream rx_stream;
+	struct fw_iso_resources tx_resources;
+	struct fw_iso_resources rx_resources;
+	unsigned int capture_substreams;
+	unsigned int playback_substreams;
+
+	/* For notification. */
+	struct fw_address_handler async_handler;
+	u32 msg;
+
+	/* For uapi */
+	int dev_lock_count;
+	bool dev_lock_changed;
+	wait_queue_head_t hwdep_wait;
+};
+
+enum snd_motu_spec_flags {
+	SND_MOTU_SPEC_SUPPORT_CLOCK_X2	= 0x0001,
+	SND_MOTU_SPEC_SUPPORT_CLOCK_X4	= 0x0002,
+	SND_MOTU_SPEC_TX_MICINST_CHUNK	= 0x0004,
+	SND_MOTU_SPEC_TX_RETURN_CHUNK	= 0x0008,
+	SND_MOTU_SPEC_TX_REVERB_CHUNK	= 0x0010,
+	SND_MOTU_SPEC_HAS_AESEBU_IFACE	= 0x0020,
+	SND_MOTU_SPEC_HAS_OPT_IFACE_A	= 0x0040,
+	SND_MOTU_SPEC_HAS_OPT_IFACE_B	= 0x0080,
+	SND_MOTU_SPEC_RX_MIDI_2ND_Q	= 0x0100,
+	SND_MOTU_SPEC_RX_MIDI_3RD_Q	= 0x0200,
+	SND_MOTU_SPEC_TX_MIDI_2ND_Q	= 0x0400,
+	SND_MOTU_SPEC_TX_MIDI_3RD_Q	= 0x0800,
+	SND_MOTU_SPEC_RX_SEPARETED_MAIN	= 0x1000,
+};
+
+#define SND_MOTU_CLOCK_RATE_COUNT	6
+extern const unsigned int snd_motu_clock_rates[SND_MOTU_CLOCK_RATE_COUNT];
+
+enum snd_motu_clock_source {
+	SND_MOTU_CLOCK_SOURCE_INTERNAL,
+	SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB,
+	SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT,
+	SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A,
+	SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B,
+	SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT,
+	SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A,
+	SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B,
+	SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX,
+	SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR,
+	SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC,
+	SND_MOTU_CLOCK_SOURCE_UNKNOWN,
+};
+
+struct snd_motu_protocol {
+	int (*get_clock_rate)(struct snd_motu *motu, unsigned int *rate);
+	int (*set_clock_rate)(struct snd_motu *motu, unsigned int rate);
+	int (*get_clock_source)(struct snd_motu *motu,
+				enum snd_motu_clock_source *source);
+	int (*switch_fetching_mode)(struct snd_motu *motu, bool enable);
+	int (*cache_packet_formats)(struct snd_motu *motu);
+};
+
+struct snd_motu_spec {
+	const char *const name;
+	enum snd_motu_spec_flags flags;
+
+	unsigned char analog_in_ports;
+	unsigned char analog_out_ports;
+
+	const struct snd_motu_protocol *const protocol;
+};
+
+extern const struct snd_motu_protocol snd_motu_protocol_v2;
+extern const struct snd_motu_protocol snd_motu_protocol_v3;
+
+extern const struct snd_motu_spec snd_motu_spec_traveler;
+
+int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
+		    enum amdtp_stream_direction dir,
+		    const struct snd_motu_protocol *const protocol);
+int amdtp_motu_set_parameters(struct amdtp_stream *s, unsigned int rate,
+			      unsigned int midi_ports,
+			      struct snd_motu_packet_format *formats);
+int amdtp_motu_add_pcm_hw_constraints(struct amdtp_stream *s,
+				      struct snd_pcm_runtime *runtime);
+void amdtp_motu_midi_trigger(struct amdtp_stream *s, unsigned int port,
+			     struct snd_rawmidi_substream *midi);
+
+int snd_motu_transaction_read(struct snd_motu *motu, u32 offset, __be32 *reg,
+			      size_t size);
+int snd_motu_transaction_write(struct snd_motu *motu, u32 offset, __be32 *reg,
+			       size_t size);
+int snd_motu_transaction_register(struct snd_motu *motu);
+int snd_motu_transaction_reregister(struct snd_motu *motu);
+void snd_motu_transaction_unregister(struct snd_motu *motu);
+
+int snd_motu_stream_init_duplex(struct snd_motu *motu);
+void snd_motu_stream_destroy_duplex(struct snd_motu *motu);
+int snd_motu_stream_cache_packet_formats(struct snd_motu *motu);
+int snd_motu_stream_start_duplex(struct snd_motu *motu, unsigned int rate);
+void snd_motu_stream_stop_duplex(struct snd_motu *motu);
+int snd_motu_stream_lock_try(struct snd_motu *motu);
+void snd_motu_stream_lock_release(struct snd_motu *motu);
+
+void snd_motu_proc_init(struct snd_motu *motu);
+
+int snd_motu_create_pcm_devices(struct snd_motu *motu);
+
+int snd_motu_create_midi_devices(struct snd_motu *motu);
+
+int snd_motu_create_hwdep_device(struct snd_motu *motu);
+#endif