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author | Markus Grabner <grabner@icg.tugraz.at> | 2009-02-27 19:43:04 -0800 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-03 14:54:24 -0700 |
commit | 705ececd1c60d0f5d6ef2a719008847883516970 (patch) | |
tree | e2a96ac85e15850919e493181fe47f7fdd471af1 /drivers/staging/line6/audio.c | |
parent | e642f09951f7cbb69983781b07bb9cd881546ac4 (diff) | |
download | op-kernel-dev-705ececd1c60d0f5d6ef2a719008847883516970.zip op-kernel-dev-705ececd1c60d0f5d6ef2a719008847883516970.tar.gz |
Staging: add line6 usb driver
This is an experimental Linux driver for the guitar amp, cab, and
effects modeller PODxt Pro by Line6 (and similar devices), supporting
the following features:
- Reading/writing individual parameters
- Reading/writing complete channel, effects setup, and amp setup data
- Channel switching
- Virtual MIDI interface
- Tuner access
- Playback/capture/mixer device for any ALSA-compatible PCM audio
application
- Signal routing (record clean/processed guitar signal, re-amping)
Moreover, preliminary support for the Variax Workbench is included.
From: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/line6/audio.c')
-rw-r--r-- | drivers/staging/line6/audio.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/staging/line6/audio.c b/drivers/staging/line6/audio.c new file mode 100644 index 0000000..e15fa1f --- /dev/null +++ b/drivers/staging/line6/audio.c @@ -0,0 +1,69 @@ +/* + * Line6 Linux USB driver - 0.8.0 + * + * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at) + * + * This program 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, version 2. + * + */ + +#include "driver.h" + +#include <sound/core.h> +#include <sound/initval.h> + + +static int line6_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *line6_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; + + +/* + Initialize the Line6 USB audio system. +*/ +int line6_init_audio(struct usb_line6 *line6) +{ + static int dev = 0; + struct snd_card *card; + + card = snd_card_new(line6_index[dev], line6_id[dev], THIS_MODULE, 0); + + if(card == NULL) + return -ENOMEM; + + line6->card = card; + + strcpy(card->driver, DRIVER_NAME); + strcpy(card->shortname, "Line6-USB"); + sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name, line6->ifcdev->bus_id); /* 80 chars - see asound.h */ + return 0; +} + +/* + Register the Line6 USB audio system. +*/ +int line6_register_audio(struct usb_line6 *line6) +{ + int err; + + if((err = snd_card_register(line6->card)) < 0) + return err; + + return 0; +} + +/* + Cleanup the Line6 USB audio system. +*/ +void line6_cleanup_audio(struct usb_line6 *line6) +{ + struct snd_card *card = line6->card; + + if(card == 0) + return; + + snd_card_disconnect(card); + snd_card_free(card); + line6->card = 0; +} |