/* * u_uac1.h -- interface to USB gadget "ALSA AUDIO" utilities * * Copyright (C) 2008 Bryan Wu * Copyright (C) 2008 Analog Devices, Inc * * Enter bugs at http://blackfin.uclinux.org/ * * Licensed under the GPL-2 or later. */ #ifndef __U_AUDIO_H #define __U_AUDIO_H #include #include #include #include #include #include #include #define FILE_PCM_PLAYBACK "/dev/snd/pcmC0D0p" #define FILE_PCM_CAPTURE "/dev/snd/pcmC0D0c" #define FILE_CONTROL "/dev/snd/controlC0" #define UAC1_OUT_EP_MAX_PACKET_SIZE 200 #define UAC1_REQ_COUNT 256 #define UAC1_AUDIO_BUF_SIZE 48000 /* * This represents the USB side of an audio card device, managed by a USB * function which provides control and stream interfaces. */ struct gaudio_snd_dev { struct gaudio *card; struct file *filp; struct snd_pcm_substream *substream; int access; int format; int channels; int rate; }; struct gaudio { struct usb_function func; struct usb_gadget *gadget; /* ALSA sound device interfaces */ struct gaudio_snd_dev control; struct gaudio_snd_dev playback; struct gaudio_snd_dev capture; /* TODO */ }; struct f_uac1_opts { struct usb_function_instance func_inst; int req_buf_size; int req_count; int audio_buf_size; char *fn_play; char *fn_cap; char *fn_cntl; unsigned bound:1; unsigned fn_play_alloc:1; unsigned fn_cap_alloc:1; unsigned fn_cntl_alloc:1; struct mutex lock; int refcnt; }; int gaudio_setup(struct gaudio *card); void gaudio_cleanup(struct gaudio *the_card); size_t u_audio_playback(struct gaudio *card, void *buf, size_t count); int u_audio_get_playback_channels(struct gaudio *card); int u_audio_get_playback_rate(struct gaudio *card); #endif /* __U_AUDIO_H */ s/pcm179x-i2c.c?h=nds-private-remove&id=413d37326700aaf708730b940b04192c36e13ef4'>treecommit diff

path: root/sound/soc/codecs/pcm179x-i2c.c

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