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Diffstat (limited to 'drivers/usb/gadget/function/u_uac1.h')
-rw-r--r--drivers/usb/gadget/function/u_uac1.h87
1 files changed, 23 insertions, 64 deletions
diff --git a/drivers/usb/gadget/function/u_uac1.h b/drivers/usb/gadget/function/u_uac1.h
index 5c2ac8e8456d..6f188fd8633f 100644
--- a/drivers/usb/gadget/function/u_uac1.h
+++ b/drivers/usb/gadget/function/u_uac1.h
@@ -1,82 +1,41 @@
/*
- * u_uac1.h -- interface to USB gadget "ALSA AUDIO" utilities
+ * u_uac1.h - Utility definitions for UAC1 function
*
- * Copyright (C) 2008 Bryan Wu <cooloney@kernel.org>
- * Copyright (C) 2008 Analog Devices, Inc
+ * Copyright (C) 2016 Ruslan Bilovol <ruslan.bilovol@gmail.com>
*
- * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
*/
-#ifndef __U_AUDIO_H
-#define __U_AUDIO_H
+#ifndef __U_UAC1_H
+#define __U_UAC1_H
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/usb/audio.h>
#include <linux/usb/composite.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-
-#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;
+#define UAC1_DEF_CCHMASK 0x3
+#define UAC1_DEF_CSRATE 48000
+#define UAC1_DEF_CSSIZE 2
+#define UAC1_DEF_PCHMASK 0x3
+#define UAC1_DEF_PSRATE 48000
+#define UAC1_DEF_PSSIZE 2
+#define UAC1_DEF_REQ_NUM 2
- /* 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;
+ int c_chmask;
+ int c_srate;
+ int c_ssize;
+ int p_chmask;
+ int p_srate;
+ int p_ssize;
+ int req_number;
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 */
+#endif /* __U_UAC1_H */