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linux-pinenote/sound/firewire/dice/dice-interface.h

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ALSA: dice: reorganize interface definitions Move the DICE interface symbols into a separate header file, and add more documentation. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-09-04 22:15:54 +02:00
#ifndef SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED
#define SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED
/*
* DICE device interface definitions
*/
/*
* Generally, all registers can be read like memory, i.e., with quadlet read or
ALSA: dice: document quadlet alignment Doing accesses without quadlet alignment is a bad idea because the firmware's byte-swapping would garble the data; clarify this in the documentation. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2012-01-08 22:18:00 +01:00
* block read transactions with at least quadlet-aligned offset and length.
* Writes are not allowed except where noted; quadlet-sized registers must be
* written with a quadlet write transaction.
ALSA: dice: reorganize interface definitions Move the DICE interface symbols into a separate header file, and add more documentation. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-09-04 22:15:54 +02:00
*
* All values are in big endian. The DICE firmware runs on a little-endian CPU
* and just byte-swaps _all_ quadlets on the bus, so values without endianness
* (e.g. strings) get scrambled and must be byte-swapped again by the driver.
*/
/*
* Streaming is handled by the "DICE driver" interface. Its registers are
* located in this private address space.
*/
#define DICE_PRIVATE_SPACE 0xffffe0000000uLL
/*
* The registers are organized in several sections, which are organized
* separately to allow them to be extended individually. Whether a register is
* supported can be detected by checking its offset against its section's size.
*
* The section offset values are relative to DICE_PRIVATE_SPACE; the offset/
* size values are measured in quadlets. Read-only.
*/
#define DICE_GLOBAL_OFFSET 0x00
#define DICE_GLOBAL_SIZE 0x04
#define DICE_TX_OFFSET 0x08
#define DICE_TX_SIZE 0x0c
#define DICE_RX_OFFSET 0x10
#define DICE_RX_SIZE 0x14
#define DICE_EXT_SYNC_OFFSET 0x18
#define DICE_EXT_SYNC_SIZE 0x1c
#define DICE_UNUSED2_OFFSET 0x20
#define DICE_UNUSED2_SIZE 0x24
/*
* Global settings.
*/
/*
* Stores the full 64-bit address (node ID and offset in the node's address
* space) where the device will send notifications. Must be changed with
* a compare/swap transaction by the owner. This register is automatically
* cleared on a bus reset.
*/
#define GLOBAL_OWNER 0x000
#define OWNER_NO_OWNER 0xffff000000000000uLL
#define OWNER_NODE_SHIFT 48
/*
* A bitmask with asynchronous events; read-only. When any event(s) happen,
* the bits of previous events are cleared, and the value of this register is
* also written to the address stored in the owner register.
*/
#define GLOBAL_NOTIFICATION 0x008
/* Some registers in the Rx/Tx sections may have changed. */
#define NOTIFY_RX_CFG_CHG 0x00000001
#define NOTIFY_TX_CFG_CHG 0x00000002
/* Lock status of the current clock source may have changed. */
#define NOTIFY_LOCK_CHG 0x00000010
/* Write to the clock select register has been finished. */
#define NOTIFY_CLOCK_ACCEPTED 0x00000020
/* Lock status of some clock source has changed. */
#define NOTIFY_EXT_STATUS 0x00000040
/* Other bits may be used for device-specific events. */
/*
* A name that can be customized for each device; read/write. Padded with zero
* bytes. Quadlets are byte-swapped. The encoding is whatever the host driver
* happens to be using.
*/
#define GLOBAL_NICK_NAME 0x00c
#define NICK_NAME_SIZE 64
/*
* The current sample rate and clock source; read/write. Whether a clock
* source or sample rate is supported is device-specific; the internal clock
* source is always available. Low/mid/high = up to 48/96/192 kHz. This
* register can be changed even while streams are running.
*/
#define GLOBAL_CLOCK_SELECT 0x04c
#define CLOCK_SOURCE_MASK 0x000000ff
#define CLOCK_SOURCE_AES1 0x00000000
#define CLOCK_SOURCE_AES2 0x00000001
#define CLOCK_SOURCE_AES3 0x00000002
#define CLOCK_SOURCE_AES4 0x00000003
#define CLOCK_SOURCE_AES_ANY 0x00000004
#define CLOCK_SOURCE_ADAT 0x00000005
#define CLOCK_SOURCE_TDIF 0x00000006
#define CLOCK_SOURCE_WC 0x00000007
#define CLOCK_SOURCE_ARX1 0x00000008
#define CLOCK_SOURCE_ARX2 0x00000009
#define CLOCK_SOURCE_ARX3 0x0000000a
#define CLOCK_SOURCE_ARX4 0x0000000b
#define CLOCK_SOURCE_INTERNAL 0x0000000c
#define CLOCK_RATE_MASK 0x0000ff00
#define CLOCK_RATE_32000 0x00000000
#define CLOCK_RATE_44100 0x00000100
#define CLOCK_RATE_48000 0x00000200
#define CLOCK_RATE_88200 0x00000300
#define CLOCK_RATE_96000 0x00000400
#define CLOCK_RATE_176400 0x00000500
#define CLOCK_RATE_192000 0x00000600
#define CLOCK_RATE_ANY_LOW 0x00000700
#define CLOCK_RATE_ANY_MID 0x00000800
#define CLOCK_RATE_ANY_HIGH 0x00000900
#define CLOCK_RATE_NONE 0x00000a00
#define CLOCK_RATE_SHIFT 8
/*
* Enable streaming; read/write. Writing a non-zero value (re)starts all
* streams that have a valid iso channel set; zero stops all streams. The
* streams' parameters must be configured before starting. This register is
* automatically cleared on a bus reset.
*/
#define GLOBAL_ENABLE 0x050
/*
* Status of the sample clock; read-only.
*/
#define GLOBAL_STATUS 0x054
/* The current clock source is locked. */
#define STATUS_SOURCE_LOCKED 0x00000001
/* The actual sample rate; CLOCK_RATE_32000-_192000 or _NONE. */
#define STATUS_NOMINAL_RATE_MASK 0x0000ff00
/*
* Status of all clock sources; read-only.
*/
#define GLOBAL_EXTENDED_STATUS 0x058
/*
* The _LOCKED bits always show the current status; any change generates
* a notification.
*/
#define EXT_STATUS_AES1_LOCKED 0x00000001
#define EXT_STATUS_AES2_LOCKED 0x00000002
#define EXT_STATUS_AES3_LOCKED 0x00000004
#define EXT_STATUS_AES4_LOCKED 0x00000008
#define EXT_STATUS_ADAT_LOCKED 0x00000010
#define EXT_STATUS_TDIF_LOCKED 0x00000020
#define EXT_STATUS_ARX1_LOCKED 0x00000040
#define EXT_STATUS_ARX2_LOCKED 0x00000080
#define EXT_STATUS_ARX3_LOCKED 0x00000100
#define EXT_STATUS_ARX4_LOCKED 0x00000200
#define EXT_STATUS_WC_LOCKED 0x00000400
/*
* The _SLIP bits do not generate notifications; a set bit indicates that an
* error occurred since the last time when this register was read with
* a quadlet read transaction.
*/
#define EXT_STATUS_AES1_SLIP 0x00010000
#define EXT_STATUS_AES2_SLIP 0x00020000
#define EXT_STATUS_AES3_SLIP 0x00040000
#define EXT_STATUS_AES4_SLIP 0x00080000
#define EXT_STATUS_ADAT_SLIP 0x00100000
#define EXT_STATUS_TDIF_SLIP 0x00200000
#define EXT_STATUS_ARX1_SLIP 0x00400000
#define EXT_STATUS_ARX2_SLIP 0x00800000
#define EXT_STATUS_ARX3_SLIP 0x01000000
#define EXT_STATUS_ARX4_SLIP 0x02000000
#define EXT_STATUS_WC_SLIP 0x04000000
/*
* The measured rate of the current clock source, in Hz; read-only.
*/
#define GLOBAL_SAMPLE_RATE 0x05c
/*
* The version of the DICE driver specification that this device conforms to;
* read-only.
*/
#define GLOBAL_VERSION 0x060
/* Some old firmware versions do not have the following global registers: */
/*
* Supported sample rates and clock sources; read-only.
*/
#define GLOBAL_CLOCK_CAPABILITIES 0x064
#define CLOCK_CAP_RATE_32000 0x00000001
#define CLOCK_CAP_RATE_44100 0x00000002
#define CLOCK_CAP_RATE_48000 0x00000004
#define CLOCK_CAP_RATE_88200 0x00000008
#define CLOCK_CAP_RATE_96000 0x00000010
#define CLOCK_CAP_RATE_176400 0x00000020
#define CLOCK_CAP_RATE_192000 0x00000040
#define CLOCK_CAP_SOURCE_AES1 0x00010000
#define CLOCK_CAP_SOURCE_AES2 0x00020000
#define CLOCK_CAP_SOURCE_AES3 0x00040000
#define CLOCK_CAP_SOURCE_AES4 0x00080000
#define CLOCK_CAP_SOURCE_AES_ANY 0x00100000
#define CLOCK_CAP_SOURCE_ADAT 0x00200000
#define CLOCK_CAP_SOURCE_TDIF 0x00400000
#define CLOCK_CAP_SOURCE_WC 0x00800000
#define CLOCK_CAP_SOURCE_ARX1 0x01000000
#define CLOCK_CAP_SOURCE_ARX2 0x02000000
#define CLOCK_CAP_SOURCE_ARX3 0x04000000
#define CLOCK_CAP_SOURCE_ARX4 0x08000000
#define CLOCK_CAP_SOURCE_INTERNAL 0x10000000
/*
* Names of all clock sources; read-only. Quadlets are byte-swapped. Names
* are separated with one backslash, the list is terminated with two
* backslashes. Unused clock sources are included.
*/
#define GLOBAL_CLOCK_SOURCE_NAMES 0x068
#define CLOCK_SOURCE_NAMES_SIZE 256
/*
* Capture stream settings. This section includes the number/size registers
* and the registers of all streams.
*/
/*
* The number of supported capture streams; read-only.
*/
#define TX_NUMBER 0x000
/*
* The size of one stream's register block, in quadlets; read-only. The
* registers of the first stream follow immediately afterwards; the registers
* of the following streams are offset by this register's value.
*/
#define TX_SIZE 0x004
/*
* The isochronous channel number on which packets are sent, or -1 if the
* stream is not to be used; read/write.
*/
#define TX_ISOCHRONOUS 0x008
/*
* The number of audio channels; read-only. There will be one quadlet per
* channel; the first channel is the first quadlet in a data block.
*/
#define TX_NUMBER_AUDIO 0x00c
/*
* The number of MIDI ports, 0-8; read-only. If > 0, there will be one
* additional quadlet in each data block, following the audio quadlets.
*/
#define TX_NUMBER_MIDI 0x010
/*
* The speed at which the packets are sent, SCODE_100-_400; read/write.
*/
#define TX_SPEED 0x014
/*
* Names of all audio channels; read-only. Quadlets are byte-swapped. Names
* are separated with one backslash, the list is terminated with two
* backslashes.
*/
#define TX_NAMES 0x018
#define TX_NAMES_SIZE 256
/*
* Audio IEC60958 capabilities; read-only. Bitmask with one bit per audio
* channel.
*/
#define TX_AC3_CAPABILITIES 0x118
/*
* Send audio data with IEC60958 label; read/write. Bitmask with one bit per
* audio channel. This register can be changed even while the stream is
* running.
*/
#define TX_AC3_ENABLE 0x11c
/*
* Playback stream settings. This section includes the number/size registers
* and the registers of all streams.
*/
/*
* The number of supported playback streams; read-only.
*/
#define RX_NUMBER 0x000
/*
* The size of one stream's register block, in quadlets; read-only. The
* registers of the first stream follow immediately afterwards; the registers
* of the following streams are offset by this register's value.
*/
#define RX_SIZE 0x004
/*
* The isochronous channel number on which packets are received, or -1 if the
* stream is not to be used; read/write.
*/
#define RX_ISOCHRONOUS 0x008
/*
* Index of first quadlet to be interpreted; read/write. If > 0, that many
* quadlets at the beginning of each data block will be ignored, and all the
* audio and MIDI quadlets will follow.
*/
#define RX_SEQ_START 0x00c
/*
* The number of audio channels; read-only. There will be one quadlet per
* channel.
*/
#define RX_NUMBER_AUDIO 0x010
/*
* The number of MIDI ports, 0-8; read-only. If > 0, there will be one
* additional quadlet in each data block, following the audio quadlets.
*/
#define RX_NUMBER_MIDI 0x014
/*
* Names of all audio channels; read-only. Quadlets are byte-swapped. Names
* are separated with one backslash, the list is terminated with two
* backslashes.
*/
#define RX_NAMES 0x018
#define RX_NAMES_SIZE 256
/*
* Audio IEC60958 capabilities; read-only. Bitmask with one bit per audio
* channel.
*/
#define RX_AC3_CAPABILITIES 0x118
/*
* Receive audio data with IEC60958 label; read/write. Bitmask with one bit
* per audio channel. This register can be changed even while the stream is
* running.
*/
#define RX_AC3_ENABLE 0x11c
/*
* Extended synchronization information.
* This section can be read completely with a block read request.
*/
/*
* Current clock source; read-only.
*/
#define EXT_SYNC_CLOCK_SOURCE 0x000
/*
* Clock source is locked (boolean); read-only.
*/
#define EXT_SYNC_LOCKED 0x004
/*
* Current sample rate (CLOCK_RATE_* >> CLOCK_RATE_SHIFT), _32000-_192000 or
* _NONE; read-only.
*/
#define EXT_SYNC_RATE 0x008
/*
* ADAT user data bits; read-only.
*/
#define EXT_SYNC_ADAT_USER_DATA 0x00c
/* The data bits, if available. */
#define ADAT_USER_DATA_MASK 0x0f
/* The data bits are not available. */
#define ADAT_USER_DATA_NO_DATA 0x10
#endif
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