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author | Takashi Iwai <tiwai@suse.de> | 2015-01-12 22:29:57 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2015-01-12 22:29:57 +0100 |
commit | 61864d844c296933d40c02683252bbea5193b101 (patch) | |
tree | af106a2061e9b33dfbffdf761406cf5ff890ba2d /sound/usb/line6/podhd.c | |
parent | d29b854fe9036a505af373ac485b2110ebae6ccd (diff) | |
download | linux-stable-61864d844c296933d40c02683252bbea5193b101.tar.gz linux-stable-61864d844c296933d40c02683252bbea5193b101.tar.bz2 linux-stable-61864d844c296933d40c02683252bbea5193b101.zip |
ALSA: move line6 usb driver into sound/usb
Promote line6 driver from staging to sound/usb/line6 directory, and
maintain through sound subsystem tree.
This commit just moves the code and adapts Makefile / Kconfig.
The further renames and misc cleanups will follow.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/line6/podhd.c')
-rw-r--r-- | sound/usb/line6/podhd.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c new file mode 100644 index 000000000000..27c5402cece8 --- /dev/null +++ b/sound/usb/line6/podhd.c @@ -0,0 +1,156 @@ +/* + * Line6 Pod HD + * + * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com> + * + * 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 <sound/core.h> +#include <sound/pcm.h> + +#include "audio.h" +#include "driver.h" +#include "pcm.h" +#include "podhd.h" + +#define PODHD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */ + +static struct snd_ratden podhd_ratden = { + .num_min = 48000, + .num_max = 48000, + .num_step = 1, + .den = 1, +}; + +static struct line6_pcm_properties podhd_pcm_properties = { + .snd_line6_playback_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .snd_line6_capture_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .snd_line6_rates = { + .nrats = 1, + .rats = &podhd_ratden}, + .bytes_per_frame = PODHD_BYTES_PER_FRAME +}; + +/* + POD HD destructor. +*/ +static void podhd_destruct(struct usb_interface *interface) +{ + struct usb_line6_podhd *podhd = usb_get_intfdata(interface); + + if (podhd == NULL) + return; + line6_cleanup_audio(&podhd->line6); +} + +/* + POD HD device disconnected. +*/ +static void line6_podhd_disconnect(struct usb_interface *interface) +{ + struct usb_line6_podhd *podhd; + + if (interface == NULL) + return; + podhd = usb_get_intfdata(interface); + + if (podhd != NULL) { + struct snd_line6_pcm *line6pcm = podhd->line6.line6pcm; + + if (line6pcm != NULL) + line6_pcm_disconnect(line6pcm); + } + + podhd_destruct(interface); +} + +/* + Try to init POD HD device. +*/ +static int podhd_try_init(struct usb_interface *interface, + struct usb_line6_podhd *podhd) +{ + int err; + struct usb_line6 *line6 = &podhd->line6; + + if ((interface == NULL) || (podhd == NULL)) + return -ENODEV; + + line6->disconnect = line6_podhd_disconnect; + + /* initialize audio system: */ + err = line6_init_audio(line6); + if (err < 0) + return err; + + /* initialize MIDI subsystem: */ + err = line6_init_midi(line6); + if (err < 0) + return err; + + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, &podhd_pcm_properties); + if (err < 0) + return err; + + /* register USB audio system: */ + err = line6_register_audio(line6); + return err; +} + +/* + Init POD HD device (and clean up in case of failure). +*/ +int line6_podhd_init(struct usb_interface *interface, struct usb_line6 *line6) +{ + struct usb_line6_podhd *podhd = (struct usb_line6_podhd *) line6; + int err = podhd_try_init(interface, podhd); + + if (err < 0) + podhd_destruct(interface); + + return err; +} |