--- /dev/null
+/****************************************************************************
+
+ Copyright Echo Digital Audio Corporation (c) 1998 - 2004
+ All rights reserved
+ www.echoaudio.com
+
+ This file is part of Echo Digital Audio's generic driver library.
+
+ Echo Digital Audio's generic driver library is free software;
+ you can redistribute it and/or modify it under the terms of
+ the GNU General Public License as published by the Free Software
+ Foundation.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ *************************************************************************
+
+ Translation from C++ and adaptation for use in ALSA-Driver
+ were made by Giuliano Pochini <pochini@shiny.it>
+
+****************************************************************************/
+
+#ifndef _ECHO_DSP_
+#define _ECHO_DSP_
+
+
+/**** Echogals: Darla20, Gina20, Layla20, and Darla24 ****/
+#if defined(ECHOGALS_FAMILY)
+
+#define NUM_ASIC_TESTS 5
+#define READ_DSP_TIMEOUT 1000000L /* one second */
+
+/**** Echo24: Gina24, Layla24, Mona, Mia, Mia-midi ****/
+#elif defined(ECHO24_FAMILY)
+
+#define DSP_56361 /* Some Echo24 cards use the 56361 DSP */
+#define READ_DSP_TIMEOUT 100000L /* .1 second */
+
+/**** 3G: Gina3G, Layla3G ****/
+#elif defined(ECHO3G_FAMILY)
+
+#define DSP_56361
+#define READ_DSP_TIMEOUT 100000L /* .1 second */
+#define MIN_MTC_1X_RATE 32000
+
+/**** Indigo: Indigo, Indigo IO, Indigo DJ ****/
+#elif defined(INDIGO_FAMILY)
+
+#define DSP_56361
+#define READ_DSP_TIMEOUT 100000L /* .1 second */
+
+#else
+
+#error No family is defined
+
+#endif
+
+
+
+/*
+ *
+ * Max inputs and outputs
+ *
+ */
+
+#define DSP_MAXAUDIOINPUTS 16 /* Max audio input channels */
+#define DSP_MAXAUDIOOUTPUTS 16 /* Max audio output channels */
+#define DSP_MAXPIPES 32 /* Max total pipes (input + output) */
+
+
+/*
+ *
+ * These are the offsets for the memory-mapped DSP registers; the DSP base
+ * address is treated as the start of a u32 array.
+ */
+
+#define CHI32_CONTROL_REG 4
+#define CHI32_STATUS_REG 5
+#define CHI32_VECTOR_REG 6
+#define CHI32_DATA_REG 7
+
+
+/*
+ *
+ * Interesting bits within the DSP registers
+ *
+ */
+
+#define CHI32_VECTOR_BUSY 0x00000001
+#define CHI32_STATUS_REG_HF3 0x00000008
+#define CHI32_STATUS_REG_HF4 0x00000010
+#define CHI32_STATUS_REG_HF5 0x00000020
+#define CHI32_STATUS_HOST_READ_FULL 0x00000004
+#define CHI32_STATUS_HOST_WRITE_EMPTY 0x00000002
+#define CHI32_STATUS_IRQ 0x00000040
+
+
+/*
+ *
+ * DSP commands sent via slave mode; these are sent to the DSP by write_dsp()
+ *
+ */
+
+#define DSP_FNC_SET_COMMPAGE_ADDR 0x02
+#define DSP_FNC_LOAD_LAYLA_ASIC 0xa0
+#define DSP_FNC_LOAD_GINA24_ASIC 0xa0
+#define DSP_FNC_LOAD_MONA_PCI_CARD_ASIC 0xa0
+#define DSP_FNC_LOAD_LAYLA24_PCI_CARD_ASIC 0xa0
+#define DSP_FNC_LOAD_MONA_EXTERNAL_ASIC 0xa1
+#define DSP_FNC_LOAD_LAYLA24_EXTERNAL_ASIC 0xa1
+#define DSP_FNC_LOAD_3G_ASIC 0xa0
+
+
+/*
+ *
+ * Defines to handle the MIDI input state engine; these are used to properly
+ * extract MIDI time code bytes and their timestamps from the MIDI input stream.
+ *
+ */
+
+#define MIDI_IN_STATE_NORMAL 0
+#define MIDI_IN_STATE_TS_HIGH 1
+#define MIDI_IN_STATE_TS_LOW 2
+#define MIDI_IN_STATE_F1_DATA 3
+#define MIDI_IN_SKIP_DATA (-1)
+
+
+/*----------------------------------------------------------------------------
+
+Setting the sample rates on Layla24 is somewhat schizophrenic.
+
+For standard rates, it works exactly like Mona and Gina24. That is, for
+8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, and 96 kHz, you just set the
+appropriate bits in the control register and write the control register.
+
+In order to support MIDI time code sync (and possibly SMPTE LTC sync in
+the future), Layla24 also has "continuous sample rate mode". In this mode,
+Layla24 can generate any sample rate between 25 and 50 kHz inclusive, or
+50 to 100 kHz inclusive for double speed mode.
+
+To use continuous mode:
+
+-Set the clock select bits in the control register to 0xe (see the #define
+ below)
+
+-Set double-speed mode if you want to use sample rates above 50 kHz
+
+-Write the control register as you would normally
+
+-Now, you need to set the frequency register. First, you need to determine the
+ value for the frequency register. This is given by the following formula:
+
+frequency_reg = (LAYLA24_MAGIC_NUMBER / sample_rate) - 2
+
+Note the #define below for the magic number
+
+-Wait for the DSP handshake
+-Write the frequency_reg value to the .SampleRate field of the comm page
+-Send the vector command SET_LAYLA24_FREQUENCY_REG (see vmonkey.h)
+
+Once you have set the control register up for continuous mode, you can just
+write the frequency register to change the sample rate. This could be
+used for MIDI time code sync. For MTC sync, the control register is set for
+continuous mode. The driver then just keeps writing the
+SET_LAYLA24_FREQUENCY_REG command.
+
+-----------------------------------------------------------------------------*/
+
+#define LAYLA24_MAGIC_NUMBER 677376000
+#define LAYLA24_CONTINUOUS_CLOCK 0x000e
+
+
+/*
+ *
+ * DSP vector commands
+ *
+ */
+
+#define DSP_VC_RESET 0x80ff
+
+#ifndef DSP_56361
+
+#define DSP_VC_ACK_INT 0x8073
+#define DSP_VC_SET_VMIXER_GAIN 0x0000 /* Not used, only for compile */
+#define DSP_VC_START_TRANSFER 0x0075 /* Handshke rqd. */
+#define DSP_VC_METERS_ON 0x0079
+#define DSP_VC_METERS_OFF 0x007b
+#define DSP_VC_UPDATE_OUTVOL 0x007d /* Handshke rqd. */
+#define DSP_VC_UPDATE_INGAIN 0x007f /* Handshke rqd. */
+#define DSP_VC_ADD_AUDIO_BUFFER 0x0081 /* Handshke rqd. */
+#define DSP_VC_TEST_ASIC 0x00eb
+#define DSP_VC_UPDATE_CLOCKS 0x00ef /* Handshke rqd. */
+#define DSP_VC_SET_LAYLA_SAMPLE_RATE 0x00f1 /* Handshke rqd. */
+#define DSP_VC_SET_GD_AUDIO_STATE 0x00f1 /* Handshke rqd. */
+#define DSP_VC_WRITE_CONTROL_REG 0x00f1 /* Handshke rqd. */
+#define DSP_VC_MIDI_WRITE 0x00f5 /* Handshke rqd. */
+#define DSP_VC_STOP_TRANSFER 0x00f7 /* Handshke rqd. */
+#define DSP_VC_UPDATE_FLAGS 0x00fd /* Handshke rqd. */
+#define DSP_VC_GO_COMATOSE 0x00f9
+
+#else /* !DSP_56361 */
+
+/* Vector commands for families that use either the 56301 or 56361 */
+#define DSP_VC_ACK_INT 0x80F5
+#define DSP_VC_SET_VMIXER_GAIN 0x00DB /* Handshke rqd. */
+#define DSP_VC_START_TRANSFER 0x00DD /* Handshke rqd. */
+#define DSP_VC_METERS_ON 0x00EF
+#define DSP_VC_METERS_OFF 0x00F1
+#define DSP_VC_UPDATE_OUTVOL 0x00E3 /* Handshke rqd. */
+#define DSP_VC_UPDATE_INGAIN 0x00E5 /* Handshke rqd. */
+#define DSP_VC_ADD_AUDIO_BUFFER 0x00E1 /* Handshke rqd. */
+#define DSP_VC_TEST_ASIC 0x00ED
+#define DSP_VC_UPDATE_CLOCKS 0x00E9 /* Handshke rqd. */
+#define DSP_VC_SET_LAYLA24_FREQUENCY_REG 0x00E9 /* Handshke rqd. */
+#define DSP_VC_SET_LAYLA_SAMPLE_RATE 0x00EB /* Handshke rqd. */
+#define DSP_VC_SET_GD_AUDIO_STATE 0x00EB /* Handshke rqd. */
+#define DSP_VC_WRITE_CONTROL_REG 0x00EB /* Handshke rqd. */
+#define DSP_VC_MIDI_WRITE 0x00E7 /* Handshke rqd. */
+#define DSP_VC_STOP_TRANSFER 0x00DF /* Handshke rqd. */
+#define DSP_VC_UPDATE_FLAGS 0x00FB /* Handshke rqd. */
+#define DSP_VC_GO_COMATOSE 0x00d9
+
+#endif /* !DSP_56361 */
+
+
+/*
+ *
+ * Timeouts
+ *
+ */
+
+#define HANDSHAKE_TIMEOUT 20000 /* send_vector command timeout (20ms) */
+#define VECTOR_BUSY_TIMEOUT 100000 /* 100ms */
+#define MIDI_OUT_DELAY_USEC 2000 /* How long to wait after MIDI fills up */
+
+
+/*
+ *
+ * Flags for .Flags field in the comm page
+ *
+ */
+
+#define DSP_FLAG_MIDI_INPUT 0x0001 /* Enable MIDI input */
+#define DSP_FLAG_SPDIF_NONAUDIO 0x0002 /* Sets the "non-audio" bit
+ * in the S/PDIF out status
+ * bits. Clear this flag for
+ * audio data;
+ * set it for AC3 or WMA or
+ * some such */
+#define DSP_FLAG_PROFESSIONAL_SPDIF 0x0008 /* 1 Professional, 0 Consumer */
+
+
+/*
+ *
+ * Clock detect bits reported by the DSP for Gina20, Layla20, Darla24, and Mia
+ *
+ */
+
+#define GLDM_CLOCK_DETECT_BIT_WORD 0x0002
+#define GLDM_CLOCK_DETECT_BIT_SUPER 0x0004
+#define GLDM_CLOCK_DETECT_BIT_SPDIF 0x0008
+#define GLDM_CLOCK_DETECT_BIT_ESYNC 0x0010
+
+
+/*
+ *
+ * Clock detect bits reported by the DSP for Gina24, Mona, and Layla24
+ *
+ */
+
+#define GML_CLOCK_DETECT_BIT_WORD96 0x0002
+#define GML_CLOCK_DETECT_BIT_WORD48 0x0004
+#define GML_CLOCK_DETECT_BIT_SPDIF48 0x0008
+#define GML_CLOCK_DETECT_BIT_SPDIF96 0x0010
+#define GML_CLOCK_DETECT_BIT_WORD (GML_CLOCK_DETECT_BIT_WORD96 | GML_CLOCK_DETECT_BIT_WORD48)
+#define GML_CLOCK_DETECT_BIT_SPDIF (GML_CLOCK_DETECT_BIT_SPDIF48 | GML_CLOCK_DETECT_BIT_SPDIF96)
+#define GML_CLOCK_DETECT_BIT_ESYNC 0x0020
+#define GML_CLOCK_DETECT_BIT_ADAT 0x0040
+
+
+/*
+ *
+ * Layla clock numbers to send to DSP
+ *
+ */
+
+#define LAYLA20_CLOCK_INTERNAL 0
+#define LAYLA20_CLOCK_SPDIF 1
+#define LAYLA20_CLOCK_WORD 2
+#define LAYLA20_CLOCK_SUPER 3
+
+
+/*
+ *
+ * Gina/Darla clock states
+ *
+ */
+
+#define GD_CLOCK_NOCHANGE 0
+#define GD_CLOCK_44 1
+#define GD_CLOCK_48 2
+#define GD_CLOCK_SPDIFIN 3
+#define GD_CLOCK_UNDEF 0xff
+
+
+/*
+ *
+ * Gina/Darla S/PDIF status bits
+ *
+ */
+
+#define GD_SPDIF_STATUS_NOCHANGE 0
+#define GD_SPDIF_STATUS_44 1
+#define GD_SPDIF_STATUS_48 2
+#define GD_SPDIF_STATUS_UNDEF 0xff
+
+
+/*
+ *
+ * Layla20 output clocks
+ *
+ */
+
+#define LAYLA20_OUTPUT_CLOCK_SUPER 0
+#define LAYLA20_OUTPUT_CLOCK_WORD 1
+
+
+/****************************************************************************
+
+ Magic constants for the Darla24 hardware
+
+ ****************************************************************************/
+
+#define GD24_96000 0x0
+#define GD24_48000 0x1
+#define GD24_44100 0x2
+#define GD24_32000 0x3
+#define GD24_22050 0x4
+#define GD24_16000 0x5
+#define GD24_11025 0x6
+#define GD24_8000 0x7
+#define GD24_88200 0x8
+#define GD24_EXT_SYNC 0x9
+
+
+/*
+ *
+ * Return values from the DSP when ASIC is loaded
+ *
+ */
+
+#define ASIC_ALREADY_LOADED 0x1
+#define ASIC_NOT_LOADED 0x0
+
+
+/*
+ *
+ * DSP Audio formats
+ *
+ * These are the audio formats that the DSP can transfer
+ * via input and output pipes. LE means little-endian,
+ * BE means big-endian.
+ *
+ * DSP_AUDIOFORM_MS_8
+ *
+ * 8-bit mono unsigned samples. For playback,
+ * mono data is duplicated out the left and right channels
+ * of the output bus. The "MS" part of the name
+ * means mono->stereo.
+ *
+ * DSP_AUDIOFORM_MS_16LE
+ *
+ * 16-bit signed little-endian mono samples. Playback works
+ * like the previous code.
+ *
+ * DSP_AUDIOFORM_MS_24LE
+ *
+ * 24-bit signed little-endian mono samples. Data is packed
+ * three bytes per sample; if you had two samples 0x112233 and 0x445566
+ * they would be stored in memory like this: 33 22 11 66 55 44.
+ *
+ * DSP_AUDIOFORM_MS_32LE
+ *
+ * 24-bit signed little-endian mono samples in a 32-bit
+ * container. In other words, each sample is a 32-bit signed
+ * integer, where the actual audio data is left-justified
+ * in the 32 bits and only the 24 most significant bits are valid.
+ *
+ * DSP_AUDIOFORM_SS_8
+ * DSP_AUDIOFORM_SS_16LE
+ * DSP_AUDIOFORM_SS_24LE
+ * DSP_AUDIOFORM_SS_32LE
+ *
+ * Like the previous ones, except now with stereo interleaved
+ * data. "SS" means stereo->stereo.
+ *
+ * DSP_AUDIOFORM_MM_32LE
+ *
+ * Similar to DSP_AUDIOFORM_MS_32LE, except that the mono
+ * data is not duplicated out both the left and right outputs.
+ * This mode is used by the ASIO driver. Here, "MM" means
+ * mono->mono.
+ *
+ * DSP_AUDIOFORM_MM_32BE
+ *
+ * Just like DSP_AUDIOFORM_MM_32LE, but now the data is
+ * in big-endian format.
+ *
+ */
+
+#define DSP_AUDIOFORM_MS_8 0 /* 8 bit mono */
+#define DSP_AUDIOFORM_MS_16LE 1 /* 16 bit mono */
+#define DSP_AUDIOFORM_MS_24LE 2 /* 24 bit mono */
+#define DSP_AUDIOFORM_MS_32LE 3 /* 32 bit mono */
+#define DSP_AUDIOFORM_SS_8 4 /* 8 bit stereo */
+#define DSP_AUDIOFORM_SS_16LE 5 /* 16 bit stereo */
+#define DSP_AUDIOFORM_SS_24LE 6 /* 24 bit stereo */
+#define DSP_AUDIOFORM_SS_32LE 7 /* 32 bit stereo */
+#define DSP_AUDIOFORM_MM_32LE 8 /* 32 bit mono->mono little-endian */
+#define DSP_AUDIOFORM_MM_32BE 9 /* 32 bit mono->mono big-endian */
+#define DSP_AUDIOFORM_SS_32BE 10 /* 32 bit stereo big endian */
+#define DSP_AUDIOFORM_INVALID 0xFF /* Invalid audio format */
+
+
+/*
+ *
+ * Super-interleave is defined as interleaving by 4 or more. Darla20 and Gina20
+ * do not support super interleave.
+ *
+ * 16 bit, 24 bit, and 32 bit little endian samples are supported for super
+ * interleave. The interleave factor must be even. 16 - way interleave is the
+ * current maximum, so you can interleave by 4, 6, 8, 10, 12, 14, and 16.
+ *
+ * The actual format code is derived by taking the define below and or-ing with
+ * the interleave factor. So, 32 bit interleave by 6 is 0x86 and
+ * 16 bit interleave by 16 is (0x40 | 0x10) = 0x50.
+ *
+ */
+
+#define DSP_AUDIOFORM_SUPER_INTERLEAVE_16LE 0x40
+#define DSP_AUDIOFORM_SUPER_INTERLEAVE_24LE 0xc0
+#define DSP_AUDIOFORM_SUPER_INTERLEAVE_32LE 0x80
+
+
+/*
+ *
+ * Gina24, Mona, and Layla24 control register defines
+ *
+ */
+
+#define GML_CONVERTER_ENABLE 0x0010
+#define GML_SPDIF_PRO_MODE 0x0020 /* Professional S/PDIF == 1,
+ consumer == 0 */
+#define GML_SPDIF_SAMPLE_RATE0 0x0040
+#define GML_SPDIF_SAMPLE_RATE1 0x0080
+#define GML_SPDIF_TWO_CHANNEL 0x0100 /* 1 == two channels,
+ 0 == one channel */
+#define GML_SPDIF_NOT_AUDIO 0x0200
+#define GML_SPDIF_COPY_PERMIT 0x0400
+#define GML_SPDIF_24_BIT 0x0800 /* 1 == 24 bit, 0 == 20 bit */
+#define GML_ADAT_MODE 0x1000 /* 1 == ADAT mode, 0 == S/PDIF mode */
+#define GML_SPDIF_OPTICAL_MODE 0x2000 /* 1 == optical mode, 0 == RCA mode */
+#define GML_SPDIF_CDROM_MODE 0x3000 /* 1 == CDROM mode,
+ * 0 == RCA or optical mode */
+#define GML_DOUBLE_SPEED_MODE 0x4000 /* 1 == double speed,
+ 0 == single speed */
+
+#define GML_DIGITAL_IN_AUTO_MUTE 0x800000
+
+#define GML_96KHZ (0x0 | GML_DOUBLE_SPEED_MODE)
+#define GML_88KHZ (0x1 | GML_DOUBLE_SPEED_MODE)
+#define GML_48KHZ 0x2
+#define GML_44KHZ 0x3
+#define GML_32KHZ 0x4
+#define GML_22KHZ 0x5
+#define GML_16KHZ 0x6
+#define GML_11KHZ 0x7
+#define GML_8KHZ 0x8
+#define GML_SPDIF_CLOCK 0x9
+#define GML_ADAT_CLOCK 0xA
+#define GML_WORD_CLOCK 0xB
+#define GML_ESYNC_CLOCK 0xC
+#define GML_ESYNCx2_CLOCK 0xD
+
+#define GML_CLOCK_CLEAR_MASK 0xffffbff0
+#define GML_SPDIF_RATE_CLEAR_MASK (~(GML_SPDIF_SAMPLE_RATE0|GML_SPDIF_SAMPLE_RATE1))
+#define GML_DIGITAL_MODE_CLEAR_MASK 0xffffcfff
+#define GML_SPDIF_FORMAT_CLEAR_MASK 0xfffff01f
+
+
+/*
+ *
+ * Mia sample rate and clock setting constants
+ *
+ */
+
+#define MIA_32000 0x0040
+#define MIA_44100 0x0042
+#define MIA_48000 0x0041
+#define MIA_88200 0x0142
+#define MIA_96000 0x0141
+
+#define MIA_SPDIF 0x00000044
+#define MIA_SPDIF96 0x00000144
+
+#define MIA_MIDI_REV 1 /* Must be Mia rev 1 for MIDI support */
+
+
+/*
+ *
+ * 3G register bits
+ *
+ */
+
+#define E3G_CONVERTER_ENABLE 0x0010
+#define E3G_SPDIF_PRO_MODE 0x0020 /* Professional S/PDIF == 1,
+ consumer == 0 */
+#define E3G_SPDIF_SAMPLE_RATE0 0x0040
+#define E3G_SPDIF_SAMPLE_RATE1 0x0080
+#define E3G_SPDIF_TWO_CHANNEL 0x0100 /* 1 == two channels,
+ 0 == one channel */
+#define E3G_SPDIF_NOT_AUDIO 0x0200
+#define E3G_SPDIF_COPY_PERMIT 0x0400
+#define E3G_SPDIF_24_BIT 0x0800 /* 1 == 24 bit, 0 == 20 bit */
+#define E3G_DOUBLE_SPEED_MODE 0x4000 /* 1 == double speed,
+ 0 == single speed */
+#define E3G_PHANTOM_POWER 0x8000 /* 1 == phantom power on,
+ 0 == phantom power off */
+
+#define E3G_96KHZ (0x0 | E3G_DOUBLE_SPEED_MODE)
+#define E3G_88KHZ (0x1 | E3G_DOUBLE_SPEED_MODE)
+#define E3G_48KHZ 0x2
+#define E3G_44KHZ 0x3
+#define E3G_32KHZ 0x4
+#define E3G_22KHZ 0x5
+#define E3G_16KHZ 0x6
+#define E3G_11KHZ 0x7
+#define E3G_8KHZ 0x8
+#define E3G_SPDIF_CLOCK 0x9
+#define E3G_ADAT_CLOCK 0xA
+#define E3G_WORD_CLOCK 0xB
+#define E3G_CONTINUOUS_CLOCK 0xE
+
+#define E3G_ADAT_MODE 0x1000
+#define E3G_SPDIF_OPTICAL_MODE 0x2000
+
+#define E3G_CLOCK_CLEAR_MASK 0xbfffbff0
+#define E3G_DIGITAL_MODE_CLEAR_MASK 0xffffcfff
+#define E3G_SPDIF_FORMAT_CLEAR_MASK 0xfffff01f
+
+/* Clock detect bits reported by the DSP */
+#define E3G_CLOCK_DETECT_BIT_WORD96 0x0001
+#define E3G_CLOCK_DETECT_BIT_WORD48 0x0002
+#define E3G_CLOCK_DETECT_BIT_SPDIF48 0x0004
+#define E3G_CLOCK_DETECT_BIT_ADAT 0x0004
+#define E3G_CLOCK_DETECT_BIT_SPDIF96 0x0008
+#define E3G_CLOCK_DETECT_BIT_WORD (E3G_CLOCK_DETECT_BIT_WORD96|E3G_CLOCK_DETECT_BIT_WORD48)
+#define E3G_CLOCK_DETECT_BIT_SPDIF (E3G_CLOCK_DETECT_BIT_SPDIF48|E3G_CLOCK_DETECT_BIT_SPDIF96)
+
+/* Frequency control register */
+#define E3G_MAGIC_NUMBER 677376000
+#define E3G_FREQ_REG_DEFAULT (E3G_MAGIC_NUMBER / 48000 - 2)
+#define E3G_FREQ_REG_MAX 0xffff
+
+/* 3G external box types */
+#define E3G_GINA3G_BOX_TYPE 0x00
+#define E3G_LAYLA3G_BOX_TYPE 0x10
+#define E3G_ASIC_NOT_LOADED 0xffff
+#define E3G_BOX_TYPE_MASK 0xf0
+
+#define EXT_3GBOX_NC 0x01
+#define EXT_3GBOX_NOT_SET 0x02
+
+
+/*
+ *
+ * Gina20 & Layla20 have input gain controls for the analog inputs;
+ * this is the magic number for the hardware that gives you 0 dB at -10.
+ *
+ */
+
+#define GL20_INPUT_GAIN_MAGIC_NUMBER 0xC8
+
+
+/*
+ *
+ * Defines how much time must pass between DSP load attempts
+ *
+ */
+
+#define DSP_LOAD_ATTEMPT_PERIOD 1000000L /* One second */
+
+
+/*
+ *
+ * Size of arrays for the comm page. MAX_PLAY_TAPS and MAX_REC_TAPS are
+ * no longer used, but the sizes must still be right for the DSP to see
+ * the comm page correctly.
+ *
+ */
+
+#define MONITOR_ARRAY_SIZE 0x180
+#define VMIXER_ARRAY_SIZE 0x40
+#define MIDI_OUT_BUFFER_SIZE 32
+#define MIDI_IN_BUFFER_SIZE 256
+#define MAX_PLAY_TAPS 168
+#define MAX_REC_TAPS 192
+#define DSP_MIDI_OUT_FIFO_SIZE 64
+
+
+/* sg_entry is a single entry for the scatter-gather list. The array of struct
+sg_entry struct is read by the DSP, so all values must be little-endian. */
+
+#define MAX_SGLIST_ENTRIES 512
+
+struct sg_entry {
+ u32 addr;
+ u32 size;
+};
+
+
+/****************************************************************************
+
+ The comm page. This structure is read and written by the DSP; the
+ DSP code is a firm believer in the byte offsets written in the comments
+ at the end of each line. This structure should not be changed.
+
+ Any reads from or writes to this structure should be in little-endian format.
+
+ ****************************************************************************/
+
+struct comm_page { /* Base Length*/
+ u32 comm_size; /* size of this object 0x000 4 */
+ u32 flags; /* See Appendix A below 0x004 4 */
+ u32 unused; /* Unused entry 0x008 4 */
+ u32 sample_rate; /* Card sample rate in Hz 0x00c 4 */
+ volatile u32 handshake; /* DSP command handshake 0x010 4 */
+ u32 cmd_start; /* Chs. to start mask 0x014 4 */
+ u32 cmd_stop; /* Chs. to stop mask 0x018 4 */
+ u32 cmd_reset; /* Chs. to reset mask 0x01c 4 */
+ u16 audio_format[DSP_MAXPIPES]; /* Chs. audio format 0x020 32*2 */
+ struct sg_entry sglist_addr[DSP_MAXPIPES];
+ /* Chs. Physical sglist addrs 0x060 32*8 */
+ volatile u32 position[DSP_MAXPIPES];
+ /* Positions for ea. ch. 0x160 32*4 */
+ volatile s8 vu_meter[DSP_MAXPIPES];
+ /* VU meters 0x1e0 32*1 */
+ volatile s8 peak_meter[DSP_MAXPIPES];
+ /* Peak meters 0x200 32*1 */
+ s8 line_out_level[DSP_MAXAUDIOOUTPUTS];
+ /* Output gain 0x220 16*1 */
+ s8 line_in_level[DSP_MAXAUDIOINPUTS];
+ /* Input gain 0x230 16*1 */
+ s8 monitors[MONITOR_ARRAY_SIZE];
+ /* Monitor map 0x240 0x180 */
+ u32 play_coeff[MAX_PLAY_TAPS];
+ /* Gina/Darla play filters - obsolete 0x3c0 168*4 */
+ u32 rec_coeff[MAX_REC_TAPS];
+ /* Gina/Darla record filters - obsolete 0x660 192*4 */
+ volatile u16 midi_input[MIDI_IN_BUFFER_SIZE];
+ /* MIDI input data transfer buffer 0x960 256*2 */
+ u8 gd_clock_state; /* Chg Gina/Darla clock state 0xb60 1 */
+ u8 gd_spdif_status; /* Chg. Gina/Darla S/PDIF state 0xb61 1 */
+ u8 gd_resampler_state; /* Should always be 3 0xb62 1 */
+ u8 filler2; /* 0xb63 1 */
+ u32 nominal_level_mask; /* -10 level enable mask 0xb64 4 */
+ u16 input_clock; /* Chg. Input clock state 0xb68 2 */
+ u16 output_clock; /* Chg. Output clock state 0xb6a 2 */
+ volatile u32 status_clocks;
+ /* Current Input clock state 0xb6c 4 */
+ u32 ext_box_status; /* External box status 0xb70 4 */
+ u32 cmd_add_buffer; /* Pipes to add (obsolete) 0xb74 4 */
+ volatile u32 midi_out_free_count;
+ /* # of bytes free in MIDI output FIFO 0xb78 4 */
+ u32 unused2; /* Cyclic pipes 0xb7c 4 */
+ u32 control_register;
+ /* Mona, Gina24, Layla24, 3G ctrl reg 0xb80 4 */
+ u32 e3g_frq_register; /* 3G frequency register 0xb84 4 */
+ u8 filler[24]; /* filler 0xb88 24*1 */
+ s8 vmixer[VMIXER_ARRAY_SIZE];
+ /* Vmixer levels 0xba0 64*1 */
+ u8 midi_output[MIDI_OUT_BUFFER_SIZE];
+ /* MIDI output data 0xbe0 32*1 */
+};
+
+#endif /* _ECHO_DSP_ */
git://git.onelab.eu / linux-2.6.git / blobdiff