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Diffstat (limited to 'usblib/host/usbhaudio.h')
| -rw-r--r-- | usblib/host/usbhaudio.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/usblib/host/usbhaudio.h b/usblib/host/usbhaudio.h new file mode 100644 index 0000000..a12e97e --- /dev/null +++ b/usblib/host/usbhaudio.h @@ -0,0 +1,162 @@ +//*****************************************************************************
+//
+// usbhaudio.h - USB host audio class driver.
+//
+// Copyright (c) 2010-2012 Texas Instruments Incorporated. All rights reserved.
+// Software License Agreement
+//
+// Texas Instruments (TI) is supplying this software for use solely and
+// exclusively on TI's microcontroller products. The software is owned by
+// TI and/or its suppliers, and is protected under applicable copyright
+// laws. You may not combine this software with "viral" open-source
+// software in order to form a larger program.
+//
+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
+// DAMAGES, FOR ANY REASON WHATSOEVER.
+//
+// This is part of revision 9453 of the Stellaris USB Library.
+//
+//*****************************************************************************
+
+#ifndef __USBHAUDIO_H__
+#define __USBHAUDIO_H__
+
+//*****************************************************************************
+//
+// If building with a C++ compiler, make all of the definitions in this header
+// have a C binding.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+//*****************************************************************************
+//
+//! \addtogroup usblib_host_class
+//! @{
+//
+//*****************************************************************************
+
+typedef void (* tUSBHostAudioCallback)(void *pvBuffer,
+ unsigned long ulParam,
+ unsigned long ulEvent);
+
+//*****************************************************************************
+//
+//! This is the size in bytes of the private data for the host audio class.
+//
+//*****************************************************************************
+#define USB_HOST_AUDIO_INSTANCE_SIZE sizeof(tHostAudioInstance);
+
+//*****************************************************************************
+//
+// USB host audio specific events
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+//! This USB host audio event indicates that the device is connected and
+//! ready to send or receive buffers. The \e pvBuffer and \e ulParam
+//! values are not used in this event.
+//
+//*****************************************************************************
+#define USBH_AUDIO_EVENT_OPEN (USBH_AUDIO_EVENT_BASE + 0)
+
+//*****************************************************************************
+//
+//! This USB host audio event indicates that the previously connected device
+//! has been disconnected. The \e pvBuffer and \e ulParam values are not used
+//! in this event.
+//
+//*****************************************************************************
+#define USBH_AUDIO_EVENT_CLOSE (USBH_AUDIO_EVENT_BASE + 1)
+
+//*****************************************************************************
+//
+// This definition is used with the USBHostAudioFormatGet() and
+// USBHostAudioFormatSet() API's to determine if the audio input is being
+// accesses(USBH_AUDIO_FORMAT_IN set) or audio output(USBH_AUDIO_FORMAT clear).
+//
+//*****************************************************************************
+#define USBH_AUDIO_FORMAT_IN 0x00000001
+#define USBH_AUDIO_FORMAT_OUT 0x00000000
+
+typedef struct
+{
+ unsigned char ucChannels;
+ unsigned char ucBits;
+ unsigned long ulSampleRate;
+} tUSBAudioFormat;
+
+//*****************************************************************************
+//
+// API Function Prototypes
+//
+//*****************************************************************************
+extern unsigned long USBHostAudioOpen(unsigned long ulIndex,
+ tUSBHostAudioCallback pfnCallback);
+extern void USBHostAudioClose(unsigned long ulInstance);
+extern long USBHostAudioPlay(unsigned long ulInstance, void *pvBuffer,
+ unsigned long ulSize,
+ tUSBHostAudioCallback pfnCallback);
+
+extern unsigned long USBHostAudioFormatGet(unsigned long ulInstance,
+ unsigned long ulSampleRate,
+ unsigned long ulBits,
+ unsigned long ulChannels,
+ unsigned long ulFlags);
+extern unsigned long USBHostAudioFormatSet(unsigned long ulInstance,
+ unsigned long ulSampleRate,
+ unsigned long ulBits,
+ unsigned long ulChannels,
+ unsigned long ulFlags);
+
+extern long USBHostAudioRecord(unsigned long ulInstance, void *pvBuffer,
+ unsigned long ulSize,
+ tUSBHostAudioCallback);
+
+extern unsigned long USBHostAudioVolumeGet(unsigned long ulInstance,
+ unsigned long ulInterface,
+ unsigned long ulChannel);
+
+extern void USBHostAudioVolumeSet(unsigned long ulInstance,
+ unsigned ulInterface,
+ unsigned long ulChannel,
+ unsigned long ulValue);
+
+extern unsigned long USBHostAudioVolumeMaxGet(unsigned long ulInstance,
+ unsigned long ulInterface,
+ unsigned long ulChannel);
+
+extern unsigned long USBHostAudioVolumeMinGet(unsigned long ulInstance,
+ unsigned long ulInterface,
+ unsigned long ulChannel);
+
+extern unsigned long USBHostAudioVolumeResGet(unsigned long ulInstance,
+ unsigned long ulInterface,
+ unsigned long ulChannel);
+
+//*****************************************************************************
+//
+//! @}
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+// Mark the end of the C bindings section for C++ compilers.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
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