usbd_audio.h File Reference

header file for the usbd_audio.c file. More...

#include "usbd_ioreq.h"

Go to the source code of this file.

Data Structures
struct	USBD_AUDIO_ControlTypeDef
struct	USBD_AUDIO_HandleTypeDef
struct	USBD_AUDIO_ItfTypeDef

Macros
#define	AUDIO_OUT_EP   0x01
#define	USB_AUDIO_CONFIG_DESC_SIZ   112
#define	AUDIO_INTERFACE_DESC_SIZE   9
#define	USB_AUDIO_DESC_SIZ   0x09
#define	AUDIO_STANDARD_ENDPOINT_DESC_SIZE   0x09
#define	AUDIO_STREAMING_ENDPOINT_DESC_SIZE   0x07
#define	AUDIO_DESCRIPTOR_TYPE   0x21
#define	USB_DEVICE_CLASS_AUDIO   0x01
#define	AUDIO_SUBCLASS_AUDIOCONTROL   0x01
#define	AUDIO_SUBCLASS_AUDIOSTREAMING   0x02
#define	AUDIO_PROTOCOL_UNDEFINED   0x00
#define	AUDIO_STREAMING_GENERAL   0x01
#define	AUDIO_STREAMING_FORMAT_TYPE   0x02
#define	AUDIO_INTERFACE_DESCRIPTOR_TYPE   0x24
#define	AUDIO_ENDPOINT_DESCRIPTOR_TYPE   0x25
#define	AUDIO_CONTROL_HEADER   0x01
#define	AUDIO_CONTROL_INPUT_TERMINAL   0x02
#define	AUDIO_CONTROL_OUTPUT_TERMINAL   0x03
#define	AUDIO_CONTROL_FEATURE_UNIT   0x06
#define	AUDIO_INPUT_TERMINAL_DESC_SIZE   0x0C
#define	AUDIO_OUTPUT_TERMINAL_DESC_SIZE   0x09
#define	AUDIO_STREAMING_INTERFACE_DESC_SIZE   0x07
#define	AUDIO_CONTROL_MUTE   0x0001
#define	AUDIO_FORMAT_TYPE_I   0x01
#define	AUDIO_FORMAT_TYPE_III   0x03
#define	AUDIO_ENDPOINT_GENERAL   0x01
#define	AUDIO_REQ_GET_CUR   0x81
#define	AUDIO_REQ_SET_CUR   0x01
#define	AUDIO_OUT_STREAMING_CTRL   0x02
#define	USBD_AUDIO_FREQ   48000
#define	USBD_AUDIO_FREQ2   44100
#define	AUDIO_OUT_PACKET   (uint32_t)(((USBD_AUDIO_FREQ * 2 * 2) / 1000))
#define	AUDIO_DEFAULT_VOLUME   70
#define	AUDIO_OUT_PACKET_NUM   45
#define	AUDIO_TOTAL_BUF_SIZE   ((uint32_t)(AUDIO_OUT_PACKET * AUDIO_OUT_PACKET_NUM))
#define	NUM_SAMPLES   ((AUDIO_TOTAL_BUF_SIZE/(2+2)))
#define	USBD_AUDIO_CLASS   &USBD_AUDIO

Enumerations
enum	AUDIO_CMD_TypeDef { AUDIO_CMD_START = 1, AUDIO_CMD_PLAY, AUDIO_CMD_STOP }
enum	AUDIO_OffsetTypeDef { AUDIO_OFFSET_NONE = 0, AUDIO_OFFSET_HALF, AUDIO_OFFSET_FULL, AUDIO_OFFSET_UNKNOWN }

Functions
uint8_t	USBD_AUDIO_RegisterInterface (USBD_HandleTypeDef *pdev, USBD_AUDIO_ItfTypeDef *fops)
	USBD_AUDIO_RegisterInterface. More...
void	USBD_AUDIO_Sync (USBD_HandleTypeDef *pdev, AUDIO_OffsetTypeDef offset)
	USBD_AUDIO_SOF handle SOF event. More...

Variables
USBD_ClassTypeDef	USBD_AUDIO

Detailed Description

header file for the usbd_audio.c file.

Author

MCD Application Team

Version

V2.4.2

Date

11-December-2015

Attention

© COPYRIGHT 2015 STMicroelectronics

Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this file except in compliance with the License. You may obtain a copy of the License at:

   http://www.st.com/software_license_agreement_liberty_v2

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Definition in file usbd_audio.h.