Merge tag 'sound-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound into next

Pull sound updates from Takashi Iwai:
 "At this time, majority of changes come from ASoC world while we got a
  few new drivers in other places for FireWire and USB.  There have been
  lots of ASoC core cleanups / refactoring, but very little visible to
  external users.

  ASoC:
   - Support for specifying aux CODECs in DT
   - Removal of the deprecated mux and enum macros
   - More moves towards full componentisation
   - Removal of some unused I/O code
   - Lots of cleanups, fixes and enhancements to the davinci, Freescale,
     Haswell and Realtek drivers
   - Several drivers exposed directly in Kconfig for use with
     simple-card
   - GPIO descriptor support for jacks
   - More updates and fixes to the Freescale SSI, Intel and rsnd drivers
   - New drivers for Cirrus CS42L56, Realtek RT5639, RT5642 and RT5651
     and ST STA350, Analog Devices ADAU1361, ADAU1381, ADAU1761 and
     ADAU1781, and Realtek RT5677

  HD-audio:
   - Clean up Dell headset quirks
   - Noise fixes for Dell and Sony laptops
   - Thinkpad T440 dock fix
   - Realtek codec updates (ALC293,ALC233,ALC3235)
   - Tegra HD-audio HDMI support

  FireWire-audio:
   - FireWire audio stack enhancement (AMDTP, MIDI), support for
     incoming isochronous stream and duplex streams with timestamp
     synchronization
   - BeBoB-based devices support
   - Fireworks-based device support

  USB-audio:
   - Behringer BCD2000 USB device support

  Misc:
   - Clean up of a few old drivers, atmel, fm801, etc"

* tag 'sound-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (480 commits)
  ASoC: Fix wrong argument for card remove callbacks
  ASoC: free jack GPIOs before the sound card is freed
  ALSA: firewire-lib: Remove a comment about restriction of asynchronous operation
  ASoC: cache: Fix error code when not using ASoC level cache
  ALSA: hda/realtek - Fix COEF widget NID for ALC260 replacer fixup
  ALSA: hda/realtek - Correction of fixup codes for PB V7900 laptop
  ALSA: firewire-lib: Use IEC 61883-6 compliant labels for Raw Audio data
  ASoC: add RT5677 CODEC driver
  ASoC: intel: The Baytrail/MAX98090 driver depends on I2C
  ASoC: rt5640: Add the function "get_clk_info" to RL6231 shared support
  ASoC: rt5640: Add the function of the PLL clock calculation to RL6231 shared support
  ASoC: rt5640: Add RL6231 class device shared support for RT5640, RT5645 and RT5651
  ASoC: cache: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
  ASoC: Add helper functions to cast from DAPM context to CODEC/platform
  ALSA: bebob: sizeof() vs ARRAY_SIZE() typo
  ASoC: wm9713: correct mono out PGA sources
  ALSA: synth: emux: soundfont.c: Cleaning up memory leak
  ASoC: fsl: Remove dependencies of boards for SND_SOC_EUKREA_TLV320
  ASoC: fsl-ssi: Use regmap
  ASoC: fsl-ssi: reorder and document fsl_ssi_private
  ...

1 files changed, 163 insertions, 37 deletions

diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 2746ecd..d8ee7b0 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -8,7 +8,7 @@
 #include "packets-buffer.h"
 
 /**
- * enum cip_out_flags - describes details of the streaming protocol
+ * enum cip_flags - describes details of the streaming protocol
  * @CIP_NONBLOCKING: In non-blocking mode, each packet contains
  *	sample_rate/8000 samples, with rounding up or down to adjust
  *	for clock skew and left-over fractional samples.  This should
@@ -16,15 +16,30 @@
  * @CIP_BLOCKING: In blocking mode, each packet contains either zero or
  *	SYT_INTERVAL samples, with these two types alternating so that
  *	the overall sample rate comes out right.
- * @CIP_HI_DUALWIRE: At rates above 96 kHz, pretend that the stream runs
- *	at half the actual sample rate with twice the number of channels;
- *	two samples of a channel are stored consecutively in the packet.
- *	Requires blocking mode and SYT_INTERVAL-aligned PCM buffer size.
+ * @CIP_SYNC_TO_DEVICE: In sync to device mode, time stamp in out packets is
+ *	generated by in packets. Defaultly this driver generates timestamp.
+ * @CIP_EMPTY_WITH_TAG0: Only for in-stream. Empty in-packets have TAG0.
+ * @CIP_DBC_IS_END_EVENT: Only for in-stream. The value of dbc in an in-packet
+ *	corresponds to the end of event in the packet. Out of IEC 61883.
+ * @CIP_WRONG_DBS: Only for in-stream. The value of dbs is wrong in in-packets.
+ *	The value of data_block_quadlets is used instead of reported value.
+ * @SKIP_DBC_ZERO_CHECK: Only for in-stream.  Packets with zero in dbc is
+ *	skipped for detecting discontinuity.
+ * @CIP_SKIP_INIT_DBC_CHECK: Only for in-stream. The value of dbc in first
+ *	packet is not continuous from an initial value.
+ * @CIP_EMPTY_HAS_WRONG_DBC: Only for in-stream. The value of dbc in empty
+ *	packet is wrong but the others are correct.
  */
-enum cip_out_flags {
-	CIP_NONBLOCKING	= 0x00,
-	CIP_BLOCKING	= 0x01,
-	CIP_HI_DUALWIRE	= 0x02,
+enum cip_flags {
+	CIP_NONBLOCKING		= 0x00,
+	CIP_BLOCKING		= 0x01,
+	CIP_SYNC_TO_DEVICE	= 0x02,
+	CIP_EMPTY_WITH_TAG0	= 0x04,
+	CIP_DBC_IS_END_EVENT	= 0x08,
+	CIP_WRONG_DBS		= 0x10,
+	CIP_SKIP_DBC_ZERO_CHECK	= 0x20,
+	CIP_SKIP_INIT_DBC_CHECK	= 0x40,
+	CIP_EMPTY_HAS_WRONG_DBC	= 0x80,
 };
 
 /**
@@ -41,27 +56,55 @@ enum cip_sfc {
 	CIP_SFC_COUNT
 };
 
+#define AMDTP_IN_PCM_FORMAT_BITS	SNDRV_PCM_FMTBIT_S32
+
 #define AMDTP_OUT_PCM_FORMAT_BITS	(SNDRV_PCM_FMTBIT_S16 | \
 					 SNDRV_PCM_FMTBIT_S32)
 
+
+/*
+ * This module supports maximum 64 PCM channels for one PCM stream
+ * This is for our convenience.
+ */
+#define AMDTP_MAX_CHANNELS_FOR_PCM	64
+
+/*
+ * AMDTP packet can include channels for MIDI conformant data.
+ * Each MIDI conformant data channel includes 8 MPX-MIDI data stream.
+ * Each MPX-MIDI data stream includes one data stream from/to MIDI ports.
+ *
+ * This module supports maximum 1 MIDI conformant data channels.
+ * Then this AMDTP packets can transfer maximum 8 MIDI data streams.
+ */
+#define AMDTP_MAX_CHANNELS_FOR_MIDI	1
+
 struct fw_unit;
 struct fw_iso_context;
 struct snd_pcm_substream;
+struct snd_pcm_runtime;
+struct snd_rawmidi_substream;
 
-struct amdtp_out_stream {
+enum amdtp_stream_direction {
+	AMDTP_OUT_STREAM = 0,
+	AMDTP_IN_STREAM
+};
+
+struct amdtp_stream {
 	struct fw_unit *unit;
-	enum cip_out_flags flags;
+	enum cip_flags flags;
+	enum amdtp_stream_direction direction;
 	struct fw_iso_context *context;
 	struct mutex mutex;
 
 	enum cip_sfc sfc;
-	bool dual_wire;
 	unsigned int data_block_quadlets;
 	unsigned int pcm_channels;
 	unsigned int midi_ports;
-	void (*transfer_samples)(struct amdtp_out_stream *s,
+	void (*transfer_samples)(struct amdtp_stream *s,
 				 struct snd_pcm_substream *pcm,
 				 __be32 *buffer, unsigned int frames);
+	u8 pcm_positions[AMDTP_MAX_CHANNELS_FOR_PCM];
+	u8 midi_position;
 
 	unsigned int syt_interval;
 	unsigned int transfer_delay;
@@ -82,65 +125,148 @@ struct amdtp_out_stream {
 	unsigned int pcm_buffer_pointer;
 	unsigned int pcm_period_pointer;
 	bool pointer_flush;
+
+	struct snd_rawmidi_substream *midi[AMDTP_MAX_CHANNELS_FOR_MIDI * 8];
+
+	/* quirk: fixed interval of dbc between previos/current packets. */
+	unsigned int tx_dbc_interval;
+
+	/* quirk: the first count of data blocks in an rx packet for MIDI */
+	unsigned int rx_blocks_for_midi;
+
+	bool callbacked;
+	wait_queue_head_t callback_wait;
+	struct amdtp_stream *sync_slave;
 };
 
-int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
-			  enum cip_out_flags flags);
-void amdtp_out_stream_destroy(struct amdtp_out_stream *s);
+int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
+		      enum amdtp_stream_direction dir,
+		      enum cip_flags flags);
+void amdtp_stream_destroy(struct amdtp_stream *s);
 
-void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,
-				     unsigned int rate,
-				     unsigned int pcm_channels,
-				     unsigned int midi_ports);
-unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s);
+void amdtp_stream_set_parameters(struct amdtp_stream *s,
+				 unsigned int rate,
+				 unsigned int pcm_channels,
+				 unsigned int midi_ports);
+unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s);
 
-int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed);
-void amdtp_out_stream_update(struct amdtp_out_stream *s);
-void amdtp_out_stream_stop(struct amdtp_out_stream *s);
+int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed);
+void amdtp_stream_update(struct amdtp_stream *s);
+void amdtp_stream_stop(struct amdtp_stream *s);
 
-void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
-				     snd_pcm_format_t format);
-void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s);
-unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);
-void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
+int amdtp_stream_add_pcm_hw_constraints(struct amdtp_stream *s,
+					struct snd_pcm_runtime *runtime);
+void amdtp_stream_set_pcm_format(struct amdtp_stream *s,
+				 snd_pcm_format_t format);
+void amdtp_stream_pcm_prepare(struct amdtp_stream *s);
+unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s);
+void amdtp_stream_pcm_abort(struct amdtp_stream *s);
 
 extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
+extern const unsigned int amdtp_rate_table[CIP_SFC_COUNT];
 
-static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)
+/**
+ * amdtp_stream_running - check stream is running or not
+ * @s: the AMDTP stream
+ *
+ * If this function returns true, the stream is running.
+ */
+static inline bool amdtp_stream_running(struct amdtp_stream *s)
 {
 	return !IS_ERR(s->context);
 }
 
 /**
- * amdtp_out_streaming_error - check for streaming error
- * @s: the AMDTP output stream
+ * amdtp_streaming_error - check for streaming error
+ * @s: the AMDTP stream
  *
  * If this function returns true, the stream's packet queue has stopped due to
  * an asynchronous error.
  */
-static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
+static inline bool amdtp_streaming_error(struct amdtp_stream *s)
 {
 	return s->packet_index < 0;
 }
 
 /**
- * amdtp_out_stream_pcm_trigger - start/stop playback from a PCM device
- * @s: the AMDTP output stream
+ * amdtp_stream_pcm_running - check PCM substream is running or not
+ * @s: the AMDTP stream
+ *
+ * If this function returns true, PCM substream in the AMDTP stream is running.
+ */
+static inline bool amdtp_stream_pcm_running(struct amdtp_stream *s)
+{
+	return !!s->pcm;
+}
+
+/**
+ * amdtp_stream_pcm_trigger - start/stop playback from a PCM device
+ * @s: the AMDTP stream
  * @pcm: the PCM device to be started, or %NULL to stop the current device
  *
  * Call this function on a running isochronous stream to enable the actual
  * transmission of PCM data.  This function should be called from the PCM
  * device's .trigger callback.
  */
-static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
-						struct snd_pcm_substream *pcm)
+static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s,
+					    struct snd_pcm_substream *pcm)
 {
 	ACCESS_ONCE(s->pcm) = pcm;
 }
 
+/**
+ * amdtp_stream_midi_trigger - start/stop playback/capture with a MIDI device
+ * @s: the AMDTP stream
+ * @port: index of MIDI port
+ * @midi: the MIDI device to be started, or %NULL to stop the current device
+ *
+ * Call this function on a running isochronous stream to enable the actual
+ * transmission of MIDI data.  This function should be called from the MIDI
+ * device's .trigger callback.
+ */
+static inline void amdtp_stream_midi_trigger(struct amdtp_stream *s,
+					     unsigned int port,
+					     struct snd_rawmidi_substream *midi)
+{
+	if (port < s->midi_ports)
+		ACCESS_ONCE(s->midi[port]) = midi;
+}
+
 static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
 {
 	return sfc & 1;
 }
 
+static inline void amdtp_stream_set_sync(enum cip_flags sync_mode,
+					 struct amdtp_stream *master,
+					 struct amdtp_stream *slave)
+{
+	if (sync_mode == CIP_SYNC_TO_DEVICE) {
+		master->flags |= CIP_SYNC_TO_DEVICE;
+		slave->flags |= CIP_SYNC_TO_DEVICE;
+		master->sync_slave = slave;
+	} else {
+		master->flags &= ~CIP_SYNC_TO_DEVICE;
+		slave->flags &= ~CIP_SYNC_TO_DEVICE;
+		master->sync_slave = NULL;
+	}
+
+	slave->sync_slave = NULL;
+}
+
+/**
+ * amdtp_stream_wait_callback - sleep till callbacked or timeout
+ * @s: the AMDTP stream
+ * @timeout: msec till timeout
+ *
+ * If this function return false, the AMDTP stream should be stopped.
+ */
+static inline bool amdtp_stream_wait_callback(struct amdtp_stream *s,
+					      unsigned int timeout)
+{
+	return wait_event_timeout(s->callback_wait,
+				  s->callbacked == true,
+				  msecs_to_jiffies(timeout)) > 0;
+}
+
 #endif