0ca5488806
There are several features of the Line6 USB driver which require PCM data to be exchanged with the device: *) PCM playback and capture via ALSA *) software monitoring (for devices without hardware monitoring) *) optional impulse response measurement However, from the device's point of view, there is just a single capture and playback stream, which must be shared between these subsystems. It is therefore necessary to maintain the state of the subsystems with respect to PCM usage. We define several constants of the form LINE6_BIT_PCM_<subsystem>_<direction>_<resource> with the following meanings: *) <subsystem> is one of -) ALSA: PCM playback and capture via ALSA -) MONITOR: software monitoring -) IMPULSE: optional impulse response measurement *) <direction> is one of -) PLAYBACK: audio output (from host to device) -) CAPTURE: audio input (from device to host) *) <resource> is one of -) BUFFER: buffer required by PCM data stream -) STREAM: actual PCM data stream The subsystems call line6_pcm_acquire() to acquire the (shared) resources needed for a particular operation (e.g., allocate the buffer for ALSA playback or start the capture stream for software monitoring). When a resource is no longer needed, it is released by calling line6_pcm_release(). Buffer allocation and stream startup are handled separately to allow the ALSA kernel driver to perform them at appropriate places (since the callback which starts a PCM stream is not allowed to sleep). Signed-off-by: Markus Grabner <grabner@icg.tugraz.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
108 lines
3 KiB
C
108 lines
3 KiB
C
/*
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* Line6 Linux USB driver - 0.9.1beta
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*
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* Copyright (C) 2005-2008 Markus Grabner (grabner@icg.tugraz.at)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#ifndef USBDEFS_H
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#define USBDEFS_H
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#define LINE6_VENDOR_ID 0x0e41
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#define USB_INTERVALS_PER_SECOND 1000
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/*
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Device ids.
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*/
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#define LINE6_DEVID_BASSPODXT 0x4250
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#define LINE6_DEVID_BASSPODXTLIVE 0x4642
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#define LINE6_DEVID_BASSPODXTPRO 0x4252
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#define LINE6_DEVID_GUITARPORT 0x4750
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#define LINE6_DEVID_POCKETPOD 0x5051
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#define LINE6_DEVID_PODHD300 0x5057
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#define LINE6_DEVID_PODHD500 0x414D
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#define LINE6_DEVID_PODSTUDIO_GX 0x4153
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#define LINE6_DEVID_PODSTUDIO_UX1 0x4150
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#define LINE6_DEVID_PODSTUDIO_UX2 0x4151
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#define LINE6_DEVID_PODX3 0x414a
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#define LINE6_DEVID_PODX3LIVE 0x414b
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#define LINE6_DEVID_PODXT 0x5044
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#define LINE6_DEVID_PODXTLIVE 0x4650
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#define LINE6_DEVID_PODXTPRO 0x5050
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#define LINE6_DEVID_TONEPORT_GX 0x4147
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#define LINE6_DEVID_TONEPORT_UX1 0x4141
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#define LINE6_DEVID_TONEPORT_UX2 0x4142
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#define LINE6_DEVID_VARIAX 0x534d
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#define LINE6_BIT(x) LINE6_BIT_ ## x = 1 << LINE6_INDEX_ ## x
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enum {
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LINE6_INDEX_BASSPODXT,
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LINE6_INDEX_BASSPODXTLIVE,
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LINE6_INDEX_BASSPODXTPRO,
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LINE6_INDEX_GUITARPORT,
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LINE6_INDEX_POCKETPOD,
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LINE6_INDEX_PODHD300,
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LINE6_INDEX_PODHD500,
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LINE6_INDEX_PODSTUDIO_GX,
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LINE6_INDEX_PODSTUDIO_UX1,
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LINE6_INDEX_PODSTUDIO_UX2,
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LINE6_INDEX_PODX3,
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LINE6_INDEX_PODX3LIVE,
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LINE6_INDEX_PODXT,
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LINE6_INDEX_PODXTLIVE,
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LINE6_INDEX_PODXTPRO,
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LINE6_INDEX_TONEPORT_GX,
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LINE6_INDEX_TONEPORT_UX1,
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LINE6_INDEX_TONEPORT_UX2,
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LINE6_INDEX_VARIAX,
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LINE6_BIT(BASSPODXT),
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LINE6_BIT(BASSPODXTLIVE),
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LINE6_BIT(BASSPODXTPRO),
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LINE6_BIT(GUITARPORT),
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LINE6_BIT(POCKETPOD),
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LINE6_BIT(PODHD300),
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LINE6_BIT(PODHD500),
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LINE6_BIT(PODSTUDIO_GX),
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LINE6_BIT(PODSTUDIO_UX1),
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LINE6_BIT(PODSTUDIO_UX2),
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LINE6_BIT(PODX3),
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LINE6_BIT(PODX3LIVE),
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LINE6_BIT(PODXT),
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LINE6_BIT(PODXTLIVE),
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LINE6_BIT(PODXTPRO),
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LINE6_BIT(TONEPORT_GX),
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LINE6_BIT(TONEPORT_UX1),
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LINE6_BIT(TONEPORT_UX2),
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LINE6_BIT(VARIAX),
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LINE6_BITS_PRO = LINE6_BIT_BASSPODXTPRO | LINE6_BIT_PODXTPRO,
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LINE6_BITS_LIVE = LINE6_BIT_BASSPODXTLIVE | LINE6_BIT_PODXTLIVE | LINE6_BIT_PODX3LIVE,
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LINE6_BITS_PODXTALL = LINE6_BIT_PODXT | LINE6_BIT_PODXTLIVE | LINE6_BIT_PODXTPRO,
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LINE6_BITS_PODX3ALL = LINE6_BIT_PODX3 | LINE6_BIT_PODX3LIVE,
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LINE6_BITS_PODHDALL = LINE6_BIT_PODHD300 | LINE6_BIT_PODHD500,
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LINE6_BITS_BASSPODXTALL = LINE6_BIT_BASSPODXT | LINE6_BIT_BASSPODXTLIVE | LINE6_BIT_BASSPODXTPRO
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};
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/* device supports settings parameter via USB */
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#define LINE6_BIT_CONTROL (1 << 0)
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/* device supports PCM input/output via USB */
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#define LINE6_BIT_PCM (1 << 1)
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/* device support hardware monitoring */
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#define LINE6_BIT_HWMON (1 << 2)
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#define LINE6_BIT_CONTROL_PCM_HWMON (LINE6_BIT_CONTROL | \
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LINE6_BIT_PCM | \
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LINE6_BIT_HWMON)
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#define LINE6_FALLBACK_INTERVAL 10
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#define LINE6_FALLBACK_MAXPACKETSIZE 16
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#endif
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