599 lines
18 KiB
C
599 lines
18 KiB
C
/****************************************************************************
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Copyright Echo Digital Audio Corporation (c) 1998 - 2004
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All rights reserved
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www.echoaudio.com
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This file is part of Echo Digital Audio's generic driver library.
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Echo Digital Audio's generic driver library is free software;
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you can redistribute it and/or modify it under the terms of
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the GNU General Public License as published by the Free Software
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Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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****************************************************************************
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Translation from C++ and adaptation for use in ALSA-Driver
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were made by Giuliano Pochini <pochini@shiny.it>
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****************************************************************************
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Here's a block diagram of how most of the cards work:
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+-----------+
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record | |<-------------------- Inputs
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<-------| | |
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PCI | Transport | |
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bus | engine | \|/
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------->| | +-------+
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play | |--->|monitor|-------> Outputs
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+-----------+ | mixer |
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+-------+
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The lines going to and from the PCI bus represent "pipes". A pipe performs
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audio transport - moving audio data to and from buffers on the host via
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bus mastering.
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The inputs and outputs on the right represent input and output "busses."
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A bus is a physical, real connection to the outside world. An example
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of a bus would be the 1/4" analog connectors on the back of Layla or
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an RCA S/PDIF connector.
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For most cards, there is a one-to-one correspondence between outputs
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and busses; that is, each individual pipe is hard-wired to a single bus.
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Cards that work this way are Darla20, Gina20, Layla20, Darla24, Gina24,
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Layla24, Mona, and Indigo.
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Mia has a feature called "virtual outputs."
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+-----------+
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record | |<----------------------------- Inputs
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<-------| | |
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PCI | Transport | |
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bus | engine | \|/
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------->| | +------+ +-------+
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play | |-->|vmixer|-->|monitor|-------> Outputs
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+-----------+ +------+ | mixer |
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+-------+
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Obviously, the difference here is the box labeled "vmixer." Vmixer is
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short for "virtual output mixer." For Mia, pipes are *not* hard-wired
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to a single bus; the vmixer lets you mix any pipe to any bus in any
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combination.
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Note, however, that the left-hand side of the diagram is unchanged.
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Transport works exactly the same way - the difference is in the mixer stage.
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Pipes and busses are numbered starting at zero.
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Pipe index
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==========
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A number of calls in CEchoGals refer to a "pipe index". A pipe index is
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a unique number for a pipe that unambiguously refers to a playback or record
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pipe. Pipe indices are numbered starting with analog outputs, followed by
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digital outputs, then analog inputs, then digital inputs.
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Take Gina24 as an example:
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Pipe index
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0-7 Analog outputs (0 .. FirstDigitalBusOut-1)
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8-15 Digital outputs (FirstDigitalBusOut .. NumBussesOut-1)
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16-17 Analog inputs
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18-25 Digital inputs
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You get the pipe index by calling CEchoGals::OpenAudio; the other transport
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functions take the pipe index as a parameter. If you need a pipe index for
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some other reason, use the handy Makepipe_index method.
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Some calls take a CChannelMask parameter; CChannelMask is a handy way to
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group pipe indices.
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Digital mode switch
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===================
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Some cards (right now, Gina24, Layla24, and Mona) have a Digital Mode Switch
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or DMS. Cards with a DMS can be set to one of three mutually exclusive
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digital modes: S/PDIF RCA, S/PDIF optical, or ADAT optical.
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This may create some confusion since ADAT optical is 8 channels wide and
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S/PDIF is only two channels wide. Gina24, Layla24, and Mona handle this
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by acting as if they always have 8 digital outs and ins. If you are in
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either S/PDIF mode, the last 6 channels don't do anything - data sent
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out these channels is thrown away and you will always record zeros.
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Note that with Gina24, Layla24, and Mona, sample rates above 50 kHz are
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only available if you have the card configured for S/PDIF optical or S/PDIF
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RCA.
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Double speed mode
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=================
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Some of the cards support 88.2 kHz and 96 kHz sampling (Darla24, Gina24,
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Layla24, Mona, Mia, and Indigo). For these cards, the driver sometimes has
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to worry about "double speed mode"; double speed mode applies whenever the
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sampling rate is above 50 kHz.
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For instance, Mona and Layla24 support word clock sync. However, they
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actually support two different word clock modes - single speed (below
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50 kHz) and double speed (above 50 kHz). The hardware detects if a single
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or double speed word clock signal is present; the generic code uses that
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information to determine which mode to use.
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The generic code takes care of all this for you.
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*/
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#ifndef _ECHOAUDIO_H_
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#define _ECHOAUDIO_H_
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#define TRUE 1
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#define FALSE 0
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#include "echoaudio_dsp.h"
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/***********************************************************************
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PCI configuration space
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***********************************************************************/
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/*
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* PCI vendor ID and device IDs for the hardware
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*/
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#define VENDOR_ID 0x1057
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#define DEVICE_ID_56301 0x1801
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#define DEVICE_ID_56361 0x3410
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#define SUBVENDOR_ID 0xECC0
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/*
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* Valid Echo PCI subsystem card IDs
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*/
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#define DARLA20 0x0010
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#define GINA20 0x0020
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#define LAYLA20 0x0030
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#define DARLA24 0x0040
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#define GINA24 0x0050
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#define LAYLA24 0x0060
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#define MONA 0x0070
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#define MIA 0x0080
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#define INDIGO 0x0090
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#define INDIGO_IO 0x00a0
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#define INDIGO_DJ 0x00b0
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#define DC8 0x00c0
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#define INDIGO_IOX 0x00d0
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#define INDIGO_DJX 0x00e0
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#define ECHO3G 0x0100
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/************************************************************************
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Array sizes and so forth
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***********************************************************************/
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/*
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* Sizes
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*/
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#define ECHO_MAXAUDIOINPUTS 32 /* Max audio input channels */
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#define ECHO_MAXAUDIOOUTPUTS 32 /* Max audio output channels */
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#define ECHO_MAXAUDIOPIPES 32 /* Max number of input and output
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* pipes */
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#define E3G_MAX_OUTPUTS 16
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#define ECHO_MAXMIDIJACKS 1 /* Max MIDI ports */
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#define ECHO_MIDI_QUEUE_SZ 512 /* Max MIDI input queue entries */
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#define ECHO_MTC_QUEUE_SZ 32 /* Max MIDI time code input queue
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* entries */
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/*
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* MIDI activity indicator timeout
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*/
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#define MIDI_ACTIVITY_TIMEOUT_USEC 200000
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/****************************************************************************
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Clocks
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*****************************************************************************/
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/*
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* Clock numbers
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*/
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#define ECHO_CLOCK_INTERNAL 0
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#define ECHO_CLOCK_WORD 1
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#define ECHO_CLOCK_SUPER 2
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#define ECHO_CLOCK_SPDIF 3
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#define ECHO_CLOCK_ADAT 4
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#define ECHO_CLOCK_ESYNC 5
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#define ECHO_CLOCK_ESYNC96 6
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#define ECHO_CLOCK_MTC 7
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#define ECHO_CLOCK_NUMBER 8
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#define ECHO_CLOCKS 0xffff
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/*
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* Clock bit numbers - used to report capabilities and whatever clocks
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* are being detected dynamically.
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*/
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#define ECHO_CLOCK_BIT_INTERNAL (1 << ECHO_CLOCK_INTERNAL)
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#define ECHO_CLOCK_BIT_WORD (1 << ECHO_CLOCK_WORD)
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#define ECHO_CLOCK_BIT_SUPER (1 << ECHO_CLOCK_SUPER)
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#define ECHO_CLOCK_BIT_SPDIF (1 << ECHO_CLOCK_SPDIF)
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#define ECHO_CLOCK_BIT_ADAT (1 << ECHO_CLOCK_ADAT)
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#define ECHO_CLOCK_BIT_ESYNC (1 << ECHO_CLOCK_ESYNC)
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#define ECHO_CLOCK_BIT_ESYNC96 (1 << ECHO_CLOCK_ESYNC96)
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#define ECHO_CLOCK_BIT_MTC (1<<ECHO_CLOCK_MTC)
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/***************************************************************************
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Digital modes
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****************************************************************************/
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/*
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* Digital modes for Mona, Layla24, and Gina24
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*/
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#define DIGITAL_MODE_NONE 0xFF
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#define DIGITAL_MODE_SPDIF_RCA 0
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#define DIGITAL_MODE_SPDIF_OPTICAL 1
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#define DIGITAL_MODE_ADAT 2
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#define DIGITAL_MODE_SPDIF_CDROM 3
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#define DIGITAL_MODES 4
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/*
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* Digital mode capability masks
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*/
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#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA (1 << DIGITAL_MODE_SPDIF_RCA)
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#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL (1 << DIGITAL_MODE_SPDIF_OPTICAL)
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#define ECHOCAPS_HAS_DIGITAL_MODE_ADAT (1 << DIGITAL_MODE_ADAT)
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#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM (1 << DIGITAL_MODE_SPDIF_CDROM)
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#define EXT_3GBOX_NC 0x01 /* 3G box not connected */
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#define EXT_3GBOX_NOT_SET 0x02 /* 3G box not detected yet */
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#define ECHOGAIN_MUTED (-128) /* Minimum possible gain */
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#define ECHOGAIN_MINOUT (-128) /* Min output gain (dB) */
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#define ECHOGAIN_MAXOUT (6) /* Max output gain (dB) */
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#define ECHOGAIN_MININP (-50) /* Min input gain (0.5 dB) */
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#define ECHOGAIN_MAXINP (50) /* Max input gain (0.5 dB) */
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#define PIPE_STATE_STOPPED 0 /* Pipe has been reset */
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#define PIPE_STATE_PAUSED 1 /* Pipe has been stopped */
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#define PIPE_STATE_STARTED 2 /* Pipe has been started */
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#define PIPE_STATE_PENDING 3 /* Pipe has pending start */
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/* Debug initialization */
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#ifdef CONFIG_SND_DEBUG
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#define DE_INIT(x) snd_printk x
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#else
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#define DE_INIT(x)
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#endif
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/* Debug hw_params callbacks */
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#ifdef CONFIG_SND_DEBUG
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#define DE_HWP(x) snd_printk x
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#else
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#define DE_HWP(x)
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#endif
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/* Debug normal activity (open, start, stop...) */
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#ifdef CONFIG_SND_DEBUG
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#define DE_ACT(x) snd_printk x
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#else
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#define DE_ACT(x)
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#endif
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/* Debug midi activity */
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#ifdef CONFIG_SND_DEBUG
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#define DE_MID(x) snd_printk x
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#else
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#define DE_MID(x)
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#endif
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struct audiopipe {
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volatile u32 *dma_counter; /* Commpage register that contains
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* the current dma position
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* (lower 32 bits only)
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*/
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u32 last_counter; /* The last position, which is used
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* to compute...
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*/
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u32 position; /* ...the number of bytes tranferred
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* by the DMA engine, modulo the
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* buffer size
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*/
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short index; /* Index of the first channel or <0
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* if hw is not configured yet
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*/
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short interleave;
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struct snd_dma_buffer sgpage; /* Room for the scatter-gather list */
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struct snd_pcm_hardware hw;
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struct snd_pcm_hw_constraint_list constr;
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short sglist_head;
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char state; /* pipe state */
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};
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struct audioformat {
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u8 interleave; /* How the data is arranged in memory:
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* mono = 1, stereo = 2, ...
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*/
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u8 bits_per_sample; /* 8, 16, 24, 32 (24 bits left aligned) */
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char mono_to_stereo; /* Only used if interleave is 1 and
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* if this is an output pipe.
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*/
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char data_are_bigendian; /* 1 = big endian, 0 = little endian */
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};
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struct echoaudio {
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spinlock_t lock;
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struct snd_pcm_substream *substream[DSP_MAXPIPES];
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int last_period[DSP_MAXPIPES];
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struct mutex mode_mutex;
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u16 num_digital_modes, digital_mode_list[6];
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u16 num_clock_sources, clock_source_list[10];
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atomic_t opencount;
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struct snd_kcontrol *clock_src_ctl;
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struct snd_pcm *analog_pcm, *digital_pcm;
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struct snd_card *card;
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const char *card_name;
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struct pci_dev *pci;
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unsigned long dsp_registers_phys;
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struct resource *iores;
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struct snd_dma_buffer commpage_dma_buf;
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int irq;
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#ifdef ECHOCARD_HAS_MIDI
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struct snd_rawmidi *rmidi;
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struct snd_rawmidi_substream *midi_in, *midi_out;
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#endif
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struct timer_list timer;
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char tinuse; /* Timer in use */
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char midi_full; /* MIDI output buffer is full */
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char can_set_rate;
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char rate_set;
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/* This stuff is used mainly by the lowlevel code */
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struct comm_page *comm_page; /* Virtual address of the memory
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* seen by DSP
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*/
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u32 pipe_alloc_mask; /* Bitmask of allocated pipes */
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u32 pipe_cyclic_mask; /* Bitmask of pipes with cyclic
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* buffers
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*/
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u32 sample_rate; /* Card sample rate in Hz */
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u8 digital_mode; /* Current digital mode
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* (see DIGITAL_MODE_*)
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*/
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u8 spdif_status; /* Gina20, Darla20, Darla24 - only */
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u8 clock_state; /* Gina20, Darla20, Darla24 - only */
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u8 input_clock; /* Currently selected sample clock
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* source
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*/
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u8 output_clock; /* Layla20 only */
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char meters_enabled; /* VU-meters status */
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char asic_loaded; /* Set TRUE when ASIC loaded */
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char bad_board; /* Set TRUE if DSP won't load */
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char professional_spdif; /* 0 = consumer; 1 = professional */
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char non_audio_spdif; /* 3G - only */
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char digital_in_automute; /* Gina24, Layla24, Mona - only */
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char has_phantom_power;
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char hasnt_input_nominal_level; /* Gina3G */
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char phantom_power; /* Gina3G - only */
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char has_midi;
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char midi_input_enabled;
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#ifdef ECHOCARD_ECHO3G
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/* External module -dependent pipe and bus indexes */
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char px_digital_out, px_analog_in, px_digital_in, px_num;
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char bx_digital_out, bx_analog_in, bx_digital_in, bx_num;
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#endif
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char nominal_level[ECHO_MAXAUDIOPIPES]; /* True == -10dBV
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* False == +4dBu */
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s8 input_gain[ECHO_MAXAUDIOINPUTS]; /* Input level -50..+50
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* unit is 0.5dB */
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s8 output_gain[ECHO_MAXAUDIOOUTPUTS]; /* Output level -128..+6 dB
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* (-128=muted) */
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s8 monitor_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOINPUTS];
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/* -128..+6 dB */
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s8 vmixer_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOOUTPUTS];
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/* -128..+6 dB */
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u16 digital_modes; /* Bitmask of supported modes
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* (see ECHOCAPS_HAS_DIGITAL_MODE_*) */
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u16 input_clock_types; /* Suppoted input clock types */
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u16 output_clock_types; /* Suppoted output clock types -
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* Layla20 only */
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u16 device_id, subdevice_id;
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u16 *dsp_code; /* Current DSP code loaded,
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* NULL if nothing loaded */
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short dsp_code_to_load; /* DSP code to load */
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short asic_code; /* Current ASIC code */
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u32 comm_page_phys; /* Physical address of the
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* memory seen by DSP */
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volatile u32 __iomem *dsp_registers; /* DSP's register base */
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u32 active_mask; /* Chs. active mask or
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* punks out */
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#ifdef CONFIG_PM_SLEEP
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const struct firmware *fw_cache[8]; /* Cached firmwares */
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#endif
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#ifdef ECHOCARD_HAS_MIDI
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u16 mtc_state; /* State for MIDI input parsing state machine */
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u8 midi_buffer[MIDI_IN_BUFFER_SIZE];
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#endif
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};
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static int init_dsp_comm_page(struct echoaudio *chip);
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static int init_line_levels(struct echoaudio *chip);
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static int free_pipes(struct echoaudio *chip, struct audiopipe *pipe);
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static int load_firmware(struct echoaudio *chip);
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static int wait_handshake(struct echoaudio *chip);
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static int send_vector(struct echoaudio *chip, u32 command);
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static int get_firmware(const struct firmware **fw_entry,
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struct echoaudio *chip, const short fw_index);
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static void free_firmware(const struct firmware *fw_entry);
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#ifdef ECHOCARD_HAS_MIDI
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static int enable_midi_input(struct echoaudio *chip, char enable);
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static void snd_echo_midi_output_trigger(
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struct snd_rawmidi_substream *substream, int up);
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static int midi_service_irq(struct echoaudio *chip);
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static int snd_echo_midi_create(struct snd_card *card,
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struct echoaudio *chip);
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#endif
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static inline void clear_handshake(struct echoaudio *chip)
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{
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chip->comm_page->handshake = 0;
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}
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static inline u32 get_dsp_register(struct echoaudio *chip, u32 index)
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{
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return readl(&chip->dsp_registers[index]);
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}
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static inline void set_dsp_register(struct echoaudio *chip, u32 index,
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u32 value)
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{
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writel(value, &chip->dsp_registers[index]);
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}
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/* Pipe and bus indexes. PX_* and BX_* are defined as chip->px_* and chip->bx_*
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for 3G cards because they depend on the external box. They are integer
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constants for all other cards.
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Never use those defines directly, use the following functions instead. */
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static inline int px_digital_out(const struct echoaudio *chip)
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{
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return PX_DIGITAL_OUT;
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}
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static inline int px_analog_in(const struct echoaudio *chip)
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{
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return PX_ANALOG_IN;
|
|
}
|
|
|
|
static inline int px_digital_in(const struct echoaudio *chip)
|
|
{
|
|
return PX_DIGITAL_IN;
|
|
}
|
|
|
|
static inline int px_num(const struct echoaudio *chip)
|
|
{
|
|
return PX_NUM;
|
|
}
|
|
|
|
static inline int bx_digital_out(const struct echoaudio *chip)
|
|
{
|
|
return BX_DIGITAL_OUT;
|
|
}
|
|
|
|
static inline int bx_analog_in(const struct echoaudio *chip)
|
|
{
|
|
return BX_ANALOG_IN;
|
|
}
|
|
|
|
static inline int bx_digital_in(const struct echoaudio *chip)
|
|
{
|
|
return BX_DIGITAL_IN;
|
|
}
|
|
|
|
static inline int bx_num(const struct echoaudio *chip)
|
|
{
|
|
return BX_NUM;
|
|
}
|
|
|
|
static inline int num_pipes_out(const struct echoaudio *chip)
|
|
{
|
|
return px_analog_in(chip);
|
|
}
|
|
|
|
static inline int num_pipes_in(const struct echoaudio *chip)
|
|
{
|
|
return px_num(chip) - px_analog_in(chip);
|
|
}
|
|
|
|
static inline int num_busses_out(const struct echoaudio *chip)
|
|
{
|
|
return bx_analog_in(chip);
|
|
}
|
|
|
|
static inline int num_busses_in(const struct echoaudio *chip)
|
|
{
|
|
return bx_num(chip) - bx_analog_in(chip);
|
|
}
|
|
|
|
static inline int num_analog_busses_out(const struct echoaudio *chip)
|
|
{
|
|
return bx_digital_out(chip);
|
|
}
|
|
|
|
static inline int num_analog_busses_in(const struct echoaudio *chip)
|
|
{
|
|
return bx_digital_in(chip) - bx_analog_in(chip);
|
|
}
|
|
|
|
static inline int num_digital_busses_out(const struct echoaudio *chip)
|
|
{
|
|
return num_busses_out(chip) - num_analog_busses_out(chip);
|
|
}
|
|
|
|
static inline int num_digital_busses_in(const struct echoaudio *chip)
|
|
{
|
|
return num_busses_in(chip) - num_analog_busses_in(chip);
|
|
}
|
|
|
|
/* The monitor array is a one-dimensional array; compute the offset
|
|
* into the array */
|
|
static inline int monitor_index(const struct echoaudio *chip, int out, int in)
|
|
{
|
|
return out * num_busses_in(chip) + in;
|
|
}
|
|
|
|
|
|
#ifndef pci_device
|
|
#define pci_device(chip) (&chip->pci->dev)
|
|
#endif
|
|
|
|
|
|
#endif /* _ECHOAUDIO_H_ */
|