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STM32 USB音频麦克风实现_usb声卡录音 stm32
作者：Cpp五条 | 2024-03-29 05:02:54
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usb声卡录音 stm32
最近项目进入收尾阶段，USB Microphone 部分代码不是我所实现，接口较为松散，所以决定优化这部分代码，啃一啃USB部分知识点，一两天肯定不能完全了解清晰，毕竟万能USB，其协议必然是复杂的，所以就先从音频麦克风的实现开始。
其实是币圈大跌，努力搬砖中…
调试工具
usbtreeview（一款方便查看USB设备相关信息的免安装绿色工具）
Audacity (音频频谱查看工具，可查看麦克风设备列表，进行音频录制)
资料书籍
<<圈圈教你玩USB 第二版>>
音频描述符中的简称及分类
详细：https://blog.csdn.net/qq_40088639/article/details/122720314
- AC：Audio Control
- AS：Audio Stream
拓扑图如下：
控制接口下，默认为端点0
接口描述符
查看位置：usbd_xxx.h，xxx代表某个功能如：audio
在这个文件中可以找到这个USB功能类的相关描述符定义
-
Terminal 以设备为视角看待
- Terminal 的输入输出成对出现
-
endpoint 以HOST为视角看待
下图为一个speeaker即扬声器 USB拓扑
endpoint 以HOST为视角看待，即主机的输出口 endpoint1 的音频数据流，转入了设备端的输入口Terminal IN
那么麦克风的配置
usbd_audio.c
iConfiguration iTerminal iInterfaceiChannelNames其数值，都是在说明本描述符的字符串说明符，所在索引号，若为0则没有字符串说明（没有文字说明）
-
wTerminalType
- 音频流：0x0101
- 麦克风：0x0201
- 电话线：0x0501
- 手持电话筒的输入麦克风：0x0401
如果麦克风数据需要通过USB上传至PC那么：
麦克风数据 --》(USB设备)MCU -》（USB主机）PC
麦克风数据 --》 terminal IN -》terminal OUT -》 Endpoint IN
STM32配置
打开USB设备功能 FS( Full Speed 全速设备)
配置USB Audio库，配置音频的采样率
PID修改参考：http://www.linux-usb.org/usb.ids
搜索0483找到STMicroelectronics
一般CubeMX会自动打开USB的全局中断，生成代码后，自己最好确认一下（位于usbd_config.c）。
以下usbd_audio.c和对应头文件可直接替换，自动生成的。
修改usbd_audio.c文件
/**
******************************************************************************
* @file usbd_audio.c
* @author MCD Application Team
* @brief This file provides the Audio core functions.
*
* @verbatim
*
* ===================================================================
* AUDIO Class Description
* ===================================================================
* This driver manages the Audio Class 1.0 following the "USB Device Class Definition for
* Audio Devices V1.0 Mar 18, 98".
* This driver implements the following aspects of the specification:
* - Device descriptor management
* - Configuration descriptor management
* - Standard AC Interface Descriptor management
* - 1 Audio Streaming Interface (with single channel, PCM, Stereo mode)
* - 1 Audio Streaming Endpoint
* - 1 Audio Terminal Input (1 channel)
* - Audio Class-Specific AC Interfaces
* - Audio Class-Specific AS Interfaces
* - AudioControl Requests: only SET_CUR and GET_CUR requests are supported (for Mute)
* - Audio Feature Unit (limited to Mute control)
* - Audio Synchronization type: Asynchronous
* - Single fixed audio sampling rate (configurable in usbd_conf.h file)
* The current audio class version supports the following audio features:
* - Pulse Coded Modulation (PCM) format
* - sampling rate: 48KHz.
* - Bit resolution: 16
* - Number of channels: 2
* - No volume control
* - Mute/Unmute capability
* - Asynchronous Endpoints
*
* @note In HS mode and when the DMA is used, all variables and data structures
* dealing with the DMA during the transaction process should be 32-bit aligned.
*
*
* @endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2015 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/* BSPDependencies
- "stm32xxxxx_{eval}{discovery}.c"
- "stm32xxxxx_{eval}{discovery}_io.c"
- "stm32xxxxx_{eval}{discovery}_audio.c"
EndBSPDependencies */
/* Includes ------------------------------------------------------------------*/
#include "usbd_audio.h"
#include "usbd_ctlreq.h"
/** @addtogroup STM32_USB_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_AUDIO
* @brief usbd core module
* @{
*/
/** @defgroup USBD_AUDIO_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_AUDIO_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBD_AUDIO_Private_Macros
* @{
*/
#define AUDIO_SAMPLE_FREQ(frq) (uint8_t)(frq), (uint8_t)((frq >> 8)), (uint8_t)((frq >> 16))
#define AUDIO_PACKET_SZE(frq) (uint8_t)(((frq * 2U * 2U)/1000U) & 0xFFU), \
(uint8_t)((((frq * 2U * 2U)/1000U) >> 8) & 0xFFU)
/**
* @}
*/
/** @defgroup USBD_AUDIO_Private_FunctionPrototypes
* @{
*/
static uint8_t USBD_AUDIO_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx);
static uint8_t USBD_AUDIO_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx);
static uint8_t USBD_AUDIO_Setup(USBD_HandleTypeDef *pdev,
USBD_SetupReqTypedef *req);
static uint8_t *USBD_AUDIO_GetCfgDesc(uint16_t *length);
static uint8_t *USBD_AUDIO_GetDeviceQualifierDesc(uint16_t *length);
static uint8_t USBD_AUDIO_DataIn(USBD_HandleTypeDef *pdev, uint8_t epnum);
static uint8_t USBD_AUDIO_DataOut(USBD_HandleTypeDef *pdev, uint8_t epnum);
static uint8_t USBD_AUDIO_EP0_RxReady(USBD_HandleTypeDef *pdev);
static uint8_t USBD_AUDIO_EP0_TxReady(USBD_HandleTypeDef *pdev);
static uint8_t USBD_AUDIO_SOF(USBD_HandleTypeDef *pdev);
static uint8_t USBD_AUDIO_IsoINIncomplete(USBD_HandleTypeDef *pdev, uint8_t epnum);
static uint8_t USBD_AUDIO_IsoOutIncomplete(USBD_HandleTypeDef *pdev, uint8_t epnum);
static void AUDIO_REQ_GetCurrent(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req);
static void AUDIO_REQ_SetCurrent(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req);
/**
* @}
*/
/** @defgroup USBD_AUDIO_Private_Variables
* @{
*/
USBD_ClassTypeDef USBD_AUDIO =
{
USBD_AUDIO_Init,
USBD_AUDIO_DeInit,
USBD_AUDIO_Setup,
USBD_AUDIO_EP0_TxReady,
USBD_AUDIO_EP0_RxReady,
USBD_AUDIO_DataIn,
USBD_AUDIO_DataOut,
USBD_AUDIO_SOF,
USBD_AUDIO_IsoINIncomplete,
USBD_AUDIO_IsoOutIncomplete,
USBD_AUDIO_GetCfgDesc,
USBD_AUDIO_GetCfgDesc,
USBD_AUDIO_GetCfgDesc,
USBD_AUDIO_GetDeviceQualifierDesc,
};
/* USB AUDIO device Configuration Descriptor */
__ALIGN_BEGIN static uint8_t USBD_AUDIO_CfgDesc[USB_AUDIO_CONFIG_DESC_SIZ] __ALIGN_END =
{
/* Configuration 1 */
0x09, /* bLength */
USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType */
LOBYTE(USB_AUDIO_CONFIG_DESC_SIZ), /* wTotalLength 109 bytes*/
HIBYTE(USB_AUDIO_CONFIG_DESC_SIZ),
0x02, /* bNumInterfaces */
0x01, /* bConfigurationValue */
0x00, /* iConfiguration */
#if (USBD_SELF_POWERED == 1U)
0xC0, /* bmAttributes: Bus Powered according to user configuration */
#else
0x80, /* bmAttributes: Bus Powered according to user configuration */
#endif
USBD_MAX_POWER, /* bMaxPower = 100 mA */
/* 09 byte*/
/* USB Microphone Standard interface descriptor */
AUDIO_INTERFACE_DESC_SIZE, /* bLength */
USB_DESC_TYPE_INTERFACE, /* bDescriptorType */
0x00, /* bInterfaceNumber */
0x00, /* bAlternateSetting */
0x00, /* bNumEndpoints */
USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */
AUDIO_SUBCLASS_AUDIOCONTROL, /* bInterfaceSubClass */
AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */
0x00, /* iInterface */
/* 09 byte*/
/* USB Microphone Class-specific AC Interface Descriptor */
AUDIO_INTERFACE_DESC_SIZE, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_HEADER, /* bDescriptorSubtype */
0x00, /* 1.00 */ /* bcdADC */
0x01,
0x27, /* wTotalLength = 39*/
0x00,
0x01, /* bInCollection */
0x01, /* baInterfaceNr */
/* 09 byte*/
/* USB Microphone Input Terminal Descriptor */
AUDIO_INPUT_TERMINAL_DESC_SIZE, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_INPUT_TERMINAL, /* bDescriptorSubtype */
AUDIO_PORT_INPUT_TERMINAL_ID_1, /* bTerminalID */
AUDIO_PORT_MICRO_PHONE_TERMINAL_L, /* wTerminalType AUDIO_TERMINAL_USB_Microphone 0x0201 */
AUDIO_PORT_MICRO_PHONE_TERMINAL_H,
0x00, /* bAssocTerminal */
AUDIO_PORT_CHANNEL_NUMS, /* bNrChannels */
AUDIO_PORT_CHANNEL_CONFIG_L, /* wChannelConfig 0x0000 Mono or L+R or L or R*/
AUDIO_PORT_CHANNEL_CONFIG_H,
0x00, /* iChannelNames */
0x00, /* iTerminal */
/* 12 byte*/
/* USB Microphone Audio Feature Unit Descriptor */
0x09, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_FEATURE_UNIT, /* bDescriptorSubtype */
AUDIO_PORT_INPUT_CTL_ID_2, /* bUnitID */
AUDIO_PORT_INPUT_TERMINAL_ID_1, /* bSourceID */
0x01, /* bControlSize */
AUDIO_CONTROL_MUTE, /* bmaControls(0) */
0, /* bmaControls(1) */
0x00, /* iTerminal */
/* 09 byte*/
/*USB Microphone Output Terminal Descriptor */
0x09, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_OUTPUT_TERMINAL, /* bDescriptorSubtype */
AUDIO_PORT_OUTPUT_TERMINAL_ID_3, /* bTerminalID */
AUDIO_PORT_STREAM_TERMINAL_TYPE_L, /* wTerminalType 音频流0x0101*/
AUDIO_PORT_STREAM_TERMINAL_TYPE_H,
0x00, /* bAssocTerminal */
AUDIO_PORT_INPUT_CTL_ID_2, /* bSourceID */
0x00, /* iTerminal */
/* 09 byte*/
/* USB Microphone Standard AS Interface Descriptor - Audio Streaming Zero Bandwidth */
/* Interface 1, Alternate Setting 0 */
AUDIO_INTERFACE_DESC_SIZE, /* bLength */
USB_DESC_TYPE_INTERFACE, /* bDescriptorType */
0x01, /* bInterfaceNumber */
0x00, /* bAlternateSetting */
0x00, /* bNumEndpoints */
USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */
AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */
AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */
0x00, /* iInterface */
/* 09 byte*/
/* USB Microphone Standard AS Interface Descriptor - Audio Streaming Operational */
/* Interface 1, Alternate Setting 1 */
AUDIO_INTERFACE_DESC_SIZE, /* bLength */
USB_DESC_TYPE_INTERFACE, /* bDescriptorType */
0x01, /* bInterfaceNumber */
0x01, /* bAlternateSetting */
0x01, /* bNumEndpoints */
USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */
AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */
AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */
0x00, /* iInterface */
/* 09 byte*/
/* USB Microphone Audio Streaming Interface Descriptor */
AUDIO_STREAMING_INTERFACE_DESC_SIZE, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_STREAMING_GENERAL, /* bDescriptorSubtype */
AUDIO_PORT_OUTPUT_TERMINAL_ID_3, /* bTerminalLink */
0x01, /* bDelay */
0x01, /* wFormatTag AUDIO_FORMAT_PCM 0x0001 */
0x00,
/* 07 byte*/
/* USB Microphone Audio Type III Format Interface Descriptor */
0x0B, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_STREAMING_FORMAT_TYPE, /* bDescriptorSubtype */
AUDIO_FORMAT_TYPE_I, /* bFormatType */
AUDIO_PORT_CHANNEL_NUMS, /* bNrChannels */
0x02, /* bSubFrameSize : 2 Bytes per frame (16bits) */
16, /* bBitResolution (16-bits per sample) */
0x01, /* bSamFreqType only one frequency supported */
AUDIO_SAMPLE_FREQ(USBD_AUDIO_FREQ), /* Audio sampling frequency coded on 3 bytes */
/* 11 byte*/
/* Endpoint 1 - Standard Descriptor */
AUDIO_STANDARD_ENDPOINT_DESC_SIZE, /* bLength */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType */
AUDIO_PORT_IN_EP_DIR_ID, /* bEndpointAddress 1 in endpoint */
USBD_EP_TYPE_ISOC, /* bmAttributes */
AUDIO_PORT_PACKET_SZE(USBD_AUDIO_FREQ),/* wMaxPacketSize in Bytes (Freq(Samples)*2(Stereo)*2(HalfWord)) */
AUDIO_PORT_FS_BINTERVAL, /* bInterval */
0x00, /* bRefresh */
0x00, /* bSynchAddress */
/* 09 byte*/
/* Endpoint - Audio Streaming Descriptor*/
AUDIO_STREAMING_ENDPOINT_DESC_SIZE, /* bLength */
AUDIO_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_ENDPOINT_GENERAL, /* bDescriptor */
0x00, /* bmAttributes */
0x00, /* bLockDelayUnits */
0x00, /* wLockDelay */
0x00,
/* 07 byte*/
} ;
/* USB Standard Device Descriptor */
__ALIGN_BEGIN static uint8_t USBD_AUDIO_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END =
{
USB_LEN_DEV_QUALIFIER_DESC,
USB_DESC_TYPE_DEVICE_QUALIFIER,
0x00,
0x02,
0x00,
0x00,
0x00,
0x40,
0x01,
0x00,
};
/**
* @}
*/
/** @defgroup USBD_AUDIO_Private_Functions
* @{
*/
/**
* @brief USBD_AUDIO_Init
* Initialize the AUDIO interface
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t USBD_AUDIO_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx)
{
return USB_Audio_Port_EP_IN_Init(pdev, cfgidx);
}
/**
* @brief USBD_AUDIO_Init
* DeInitialize the AUDIO layer
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t USBD_AUDIO_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx)
{
UNUSED(cfgidx);
/* Open EP OUT */
(void)USBD_LL_CloseEP(pdev, AUDIO_OUT_EP);
pdev->ep_out[AUDIO_OUT_EP & 0xFU].is_used = 0U;
pdev->ep_out[AUDIO_OUT_EP & 0xFU].bInterval = 0U;
/* DeInit physical Interface components */
if (pdev->pClassData != NULL)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->DeInit(0U);
(void)USBD_free(pdev->pClassData);
pdev->pClassData = NULL;
}
return (uint8_t)USBD_OK;
}
/**
* @brief USBD_AUDIO_Setup
* Handle the AUDIO specific requests
* @param pdev: instance
* @param req: usb requests
* @retval status
*/
static uint8_t USBD_AUDIO_Setup(USBD_HandleTypeDef *pdev,
USBD_SetupReqTypedef *req)
{
USBD_AUDIO_HandleTypeDef *haudio;
uint16_t len;
uint8_t *pbuf;
uint16_t status_info = 0U;
USBD_StatusTypeDef ret = USBD_OK;
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
if (haudio == NULL)
{
return (uint8_t)USBD_FAIL;
}
switch (req->bmRequest & USB_REQ_TYPE_MASK)
{
case USB_REQ_TYPE_CLASS:
switch (req->bRequest)
{
case AUDIO_REQ_GET_CUR:
AUDIO_REQ_GetCurrent(pdev, req);
break;
case AUDIO_REQ_SET_CUR:
AUDIO_REQ_SetCurrent(pdev, req);
break;
default:
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
break;
}
break;
case USB_REQ_TYPE_STANDARD:
switch (req->bRequest)
{
case USB_REQ_GET_STATUS:
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
(void)USBD_CtlSendData(pdev, (uint8_t *)&status_info, 2U);
}
else
{
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
}
break;
case USB_REQ_GET_DESCRIPTOR:
if ((req->wValue >> 8) == AUDIO_DESCRIPTOR_TYPE)
{
pbuf = USBD_AUDIO_CfgDesc + 18;
len = MIN(USB_AUDIO_DESC_SIZ, req->wLength);
(void)USBD_CtlSendData(pdev, pbuf, len);
}
break;
case USB_REQ_GET_INTERFACE:
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
(void)USBD_CtlSendData(pdev, (uint8_t *)&haudio->alt_setting, 1U);
}
else
{
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
}
break;
case USB_REQ_SET_INTERFACE:
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if ((uint8_t)(req->wValue) <= USBD_MAX_NUM_INTERFACES)
{
haudio->alt_setting = (uint8_t)(req->wValue);
}
else
{
/* Call the error management function (command will be NAKed */
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
}
}
else
{
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
}
break;
case USB_REQ_CLEAR_FEATURE:
break;
default:
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
break;
}
break;
default:
USBD_CtlError(pdev, req);
ret = USBD_FAIL;
break;
}
return (uint8_t)ret;
}
/**
* @brief USBD_AUDIO_GetCfgDesc
* return configuration descriptor
* @param speed : current device speed
* @param length : pointer data length
* @retval pointer to descriptor buffer
*/
static uint8_t *USBD_AUDIO_GetCfgDesc(uint16_t *length)
{
*length = (uint16_t)sizeof(USBD_AUDIO_CfgDesc);
return USBD_AUDIO_CfgDesc;
}
/**
* @brief USBD_AUDIO_DataIn
* handle data IN Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_AUDIO_DataIn(USBD_HandleTypeDef *pdev, uint8_t epnum)
{
return USB_Audio_Port_DataIn(pdev, epnum);
}
/**
* @brief USBD_AUDIO_EP0_RxReady
* handle EP0 Rx Ready event
* @param pdev: device instance
* @retval status
*/
static uint8_t USBD_AUDIO_EP0_RxReady(USBD_HandleTypeDef *pdev)
{
USBD_AUDIO_HandleTypeDef *haudio;
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
if (haudio == NULL)
{
return (uint8_t)USBD_FAIL;
}
if (haudio->control.cmd == AUDIO_REQ_SET_CUR)
{
/* In this driver, to simplify code, only SET_CUR request is managed */
if (haudio->control.unit == AUDIO_OUT_STREAMING_CTRL)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->MuteCtl(haudio->control.data[0]);
haudio->control.cmd = 0U;
haudio->control.len = 0U;
}
}
return (uint8_t)USBD_OK;
}
/**
* @brief USBD_AUDIO_EP0_TxReady
* handle EP0 TRx Ready event
* @param pdev: device instance
* @retval status
*/
static uint8_t USBD_AUDIO_EP0_TxReady(USBD_HandleTypeDef *pdev)
{
UNUSED(pdev);
/* Only OUT control data are processed */
return (uint8_t)USBD_OK;
}
/**
* @brief USBD_AUDIO_SOF
* handle SOF event
* @param pdev: device instance
* @retval status
*/
static uint8_t USBD_AUDIO_SOF(USBD_HandleTypeDef *pdev)
{
UNUSED(pdev);
return (uint8_t)USBD_OK;
}
/**
* @brief USBD_AUDIO_SOF
* handle SOF event
* @param pdev: device instance
* @retval status
*/
void USBD_AUDIO_Sync(USBD_HandleTypeDef *pdev, AUDIO_OffsetTypeDef offset)
{
USBD_AUDIO_HandleTypeDef *haudio;
uint32_t BufferSize = AUDIO_TOTAL_BUF_SIZE / 2U;
if (pdev->pClassData == NULL)
{
return;
}
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
haudio->offset = offset;
if (haudio->rd_enable == 1U)
{
haudio->rd_ptr += (uint16_t)BufferSize;
if (haudio->rd_ptr == AUDIO_TOTAL_BUF_SIZE)
{
/* roll back */
haudio->rd_ptr = 0U;
}
}
if (haudio->rd_ptr > haudio->wr_ptr)
{
if ((haudio->rd_ptr - haudio->wr_ptr) < AUDIO_OUT_PACKET)
{
BufferSize += 4U;
}
else
{
if ((haudio->rd_ptr - haudio->wr_ptr) > (AUDIO_TOTAL_BUF_SIZE - AUDIO_OUT_PACKET))
{
BufferSize -= 4U;
}
}
}
else
{
if ((haudio->wr_ptr - haudio->rd_ptr) < AUDIO_OUT_PACKET)
{
BufferSize -= 4U;
}
else
{
if ((haudio->wr_ptr - haudio->rd_ptr) > (AUDIO_TOTAL_BUF_SIZE - AUDIO_OUT_PACKET))
{
BufferSize += 4U;
}
}
}
if (haudio->offset == AUDIO_OFFSET_FULL)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->AudioCmd(&haudio->buffer[0],
BufferSize, AUDIO_CMD_PLAY);
haudio->offset = AUDIO_OFFSET_NONE;
}
}
/**
* @brief USBD_AUDIO_IsoINIncomplete
* handle data ISO IN Incomplete event
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_AUDIO_IsoINIncomplete(USBD_HandleTypeDef *pdev, uint8_t epnum)
{
UNUSED(pdev);
UNUSED(epnum);
return (uint8_t)USBD_OK;
}
/**
* @brief USBD_AUDIO_IsoOutIncomplete
* handle data ISO OUT Incomplete event
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_AUDIO_IsoOutIncomplete(USBD_HandleTypeDef *pdev, uint8_t epnum)
{
UNUSED(pdev);
UNUSED(epnum);
return (uint8_t)USBD_OK;
}
/**
* @brief USBD_AUDIO_DataOut
* handle data OUT Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_AUDIO_DataOut(USBD_HandleTypeDef *pdev, uint8_t epnum)
{
uint16_t PacketSize;
USBD_AUDIO_HandleTypeDef *haudio;
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
if (haudio == NULL)
{
return (uint8_t)USBD_FAIL;
}
if (epnum == AUDIO_OUT_EP)
{
/* Get received data packet length */
PacketSize = (uint16_t)USBD_LL_GetRxDataSize(pdev, epnum);
/* Packet received Callback */
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->PeriodicTC(&haudio->buffer[haudio->wr_ptr],
PacketSize, AUDIO_OUT_TC);
/* Increment the Buffer pointer or roll it back when all buffers are full */
haudio->wr_ptr += PacketSize;
if (haudio->wr_ptr == AUDIO_TOTAL_BUF_SIZE)
{
/* All buffers are full: roll back */
haudio->wr_ptr = 0U;
if (haudio->offset == AUDIO_OFFSET_UNKNOWN)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->AudioCmd(&haudio->buffer[0],
AUDIO_TOTAL_BUF_SIZE / 2U,
AUDIO_CMD_START);
haudio->offset = AUDIO_OFFSET_NONE;
}
}
if (haudio->rd_enable == 0U)
{
if (haudio->wr_ptr == (AUDIO_TOTAL_BUF_SIZE / 2U))
{
haudio->rd_enable = 1U;
}
}
/* Prepare Out endpoint to receive next audio packet */
(void)USBD_LL_PrepareReceive(pdev, AUDIO_OUT_EP,
&haudio->buffer[haudio->wr_ptr],
AUDIO_OUT_PACKET);
}
return (uint8_t)USBD_OK;
}
/**
* @brief AUDIO_Req_GetCurrent
* Handles the GET_CUR Audio control request.
* @param pdev: instance
* @param req: setup class request
* @retval status
*/
static void AUDIO_REQ_GetCurrent(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req)
{
USBD_AUDIO_HandleTypeDef *haudio;
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
if (haudio == NULL)
{
return;
}
(void)USBD_memset(haudio->control.data, 0, 64U);
/* Send the current mute state */
(void)USBD_CtlSendData(pdev, haudio->control.data, req->wLength);
}
/**
* @brief AUDIO_Req_SetCurrent
* Handles the SET_CUR Audio control request.
* @param pdev: instance
* @param req: setup class request
* @retval status
*/
static void AUDIO_REQ_SetCurrent(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req)
{
USBD_AUDIO_HandleTypeDef *haudio;
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
if (haudio == NULL)
{
return;
}
if (req->wLength != 0U)
{
/* Prepare the reception of the buffer over EP0 */
(void)USBD_CtlPrepareRx(pdev, haudio->control.data, req->wLength);
haudio->control.cmd = AUDIO_REQ_SET_CUR; /* Set the request value */
haudio->control.len = (uint8_t)req->wLength; /* Set the request data length */
haudio->control.unit = HIBYTE(req->wIndex); /* Set the request target unit */
}
}
/**
* @brief DeviceQualifierDescriptor
* return Device Qualifier descriptor
* @param length : pointer data length
* @retval pointer to descriptor buffer
*/
static uint8_t *USBD_AUDIO_GetDeviceQualifierDesc(uint16_t *length)
{
*length = (uint16_t)sizeof(USBD_AUDIO_DeviceQualifierDesc);
return USBD_AUDIO_DeviceQualifierDesc;
}
/**
* @brief USBD_AUDIO_RegisterInterface
* @param fops: Audio interface callback
* @retval status
*/
uint8_t USBD_AUDIO_RegisterInterface(USBD_HandleTypeDef *pdev,
USBD_AUDIO_ItfTypeDef *fops)
{
if (fops == NULL)
{
return (uint8_t)USBD_FAIL;
}
pdev->pUserData = fops;
return (uint8_t)USBD_OK;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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usbd_audio.h
其内主要修改了 缓冲区大小，包含了接口头文件
/**
******************************************************************************
* @file usbd_audio.h
* @author MCD Application Team
* @brief header file for the usbd_audio.c file.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2015 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __USB_AUDIO_H
#define __USB_AUDIO_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "usbd_ioreq.h"
#include "USB_Audio_Port.h"
/** @addtogroup STM32_USB_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_AUDIO
* @brief This file is the Header file for usbd_audio.c
* @{
*/
/** @defgroup USBD_AUDIO_Exported_Defines
* @{
*/
#ifndef USBD_AUDIO_FREQ
/* AUDIO Class Config */
#define USBD_AUDIO_FREQ 48000U
#endif /* USBD_AUDIO_FREQ */
#ifndef USBD_MAX_NUM_INTERFACES
#define USBD_MAX_NUM_INTERFACES 1U
#endif /* USBD_AUDIO_FREQ */
#ifndef AUDIO_HS_BINTERVAL
#define AUDIO_HS_BINTERVAL 0x01U
#endif /* AUDIO_HS_BINTERVAL */
#ifndef AUDIO_FS_BINTERVAL
#define AUDIO_FS_BINTERVAL 0x01U
#endif /* AUDIO_FS_BINTERVAL */
#define AUDIO_OUT_EP 0x01U
#define USB_AUDIO_CONFIG_DESC_SIZ 0x6DU
#define AUDIO_INTERFACE_DESC_SIZE 0x09U
#define USB_AUDIO_DESC_SIZ 0x09U
#define AUDIO_STANDARD_ENDPOINT_DESC_SIZE 0x09U
#define AUDIO_STREAMING_ENDPOINT_DESC_SIZE 0x07U
#define AUDIO_DESCRIPTOR_TYPE 0x21U
#define USB_DEVICE_CLASS_AUDIO 0x01U
#define AUDIO_SUBCLASS_AUDIOCONTROL 0x01U
#define AUDIO_SUBCLASS_AUDIOSTREAMING 0x02U
#define AUDIO_PROTOCOL_UNDEFINED 0x00U
#define AUDIO_STREAMING_GENERAL 0x01U
#define AUDIO_STREAMING_FORMAT_TYPE 0x02U
/* Audio Descriptor Types */
#define AUDIO_INTERFACE_DESCRIPTOR_TYPE 0x24U
#define AUDIO_ENDPOINT_DESCRIPTOR_TYPE 0x25U
/* Audio Control Interface Descriptor Subtypes */
#define AUDIO_CONTROL_HEADER 0x01U
#define AUDIO_CONTROL_INPUT_TERMINAL 0x02U
#define AUDIO_CONTROL_OUTPUT_TERMINAL 0x03U
#define AUDIO_CONTROL_FEATURE_UNIT 0x06U
#define AUDIO_INPUT_TERMINAL_DESC_SIZE 0x0CU
#define AUDIO_OUTPUT_TERMINAL_DESC_SIZE 0x09U
#define AUDIO_STREAMING_INTERFACE_DESC_SIZE 0x07U
#define AUDIO_CONTROL_MUTE 0x0001U
#define AUDIO_FORMAT_TYPE_I 0x01U
#define AUDIO_FORMAT_TYPE_III 0x03U
#define AUDIO_ENDPOINT_GENERAL 0x01U
#define AUDIO_REQ_GET_CUR 0x81U
#define AUDIO_REQ_SET_CUR 0x01U
#define AUDIO_OUT_STREAMING_CTRL 0x02U
#define AUDIO_OUT_TC 0x01U
#define AUDIO_IN_TC 0x02U
#define AUDIO_OUT_PACKET AUDIO_PORT_OUT_SIZE
#define AUDIO_DEFAULT_VOLUME 70U
/* Number of sub-packets in the audio transfer buffer. You can modify this value but always make sure
that it is an even number and higher than 3 */
#define AUDIO_OUT_PACKET_NUM 80U
/* Total size of the audio transfer buffer */
#define AUDIO_TOTAL_BUF_SIZE AUDIO_PORT_BUF_SIZE
/* Audio Commands enumeration */
typedef enum
{
AUDIO_CMD_START = 1,
AUDIO_CMD_PLAY,
AUDIO_CMD_STOP,
} AUDIO_CMD_TypeDef;
typedef enum
{
AUDIO_OFFSET_NONE = 0,
AUDIO_OFFSET_HALF,
AUDIO_OFFSET_FULL,
AUDIO_OFFSET_UNKNOWN,
} AUDIO_OffsetTypeDef;
/**
* @}
*/
/** @defgroup USBD_CORE_Exported_TypesDefinitions
* @{
*/
typedef struct
{
uint8_t cmd;
uint8_t data[USB_MAX_EP0_SIZE];
uint8_t len;
uint8_t unit;
} USBD_AUDIO_ControlTypeDef;
typedef struct
{
uint32_t alt_setting;
uint8_t buffer[AUDIO_TOTAL_BUF_SIZE];
AUDIO_OffsetTypeDef offset;
uint8_t rd_enable;
uint16_t rd_ptr;
uint16_t wr_ptr;
USBD_AUDIO_ControlTypeDef control;
} USBD_AUDIO_HandleTypeDef;
typedef struct
{
int8_t (*Init)(uint32_t AudioFreq, uint32_t Volume, uint32_t options);
int8_t (*DeInit)(uint32_t options);
int8_t (*AudioCmd)(uint8_t *pbuf, uint32_t size, uint8_t cmd);
int8_t (*VolumeCtl)(uint8_t vol);
int8_t (*MuteCtl)(uint8_t cmd);
int8_t (*PeriodicTC)(uint8_t *pbuf, uint32_t size, uint8_t cmd);
int8_t (*GetState)(void);
} USBD_AUDIO_ItfTypeDef;
/**
* @}
*/
/** @defgroup USBD_CORE_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_CORE_Exported_Variables
* @{
*/
extern USBD_ClassTypeDef USBD_AUDIO;
#define USBD_AUDIO_CLASS &USBD_AUDIO
/**
* @}
*/
/** @defgroup USB_CORE_Exported_Functions
* @{
*/
uint8_t USBD_AUDIO_RegisterInterface(USBD_HandleTypeDef *pdev,
USBD_AUDIO_ItfTypeDef *fops);
void USBD_AUDIO_Sync(USBD_HandleTypeDef *pdev, AUDIO_OffsetTypeDef offset);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __USB_AUDIO_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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实现部分
其内需要环形缓冲区，源码获取：https://blog.csdn.net/weixin_42892101/article/details/104886937
USB_Audio_Port.c
/**
* @file USB_Audio_Port.c
*
* @date 2021-06-01
*
* @author aron566
*
* @copyright Copyright (c) 2021 aron566 <aron566@163.com>.
*
* @brief USB音频类接口，对外提供音频更新及输出接口
*
* @details 1、开启对应FS中断，中断处理和初始化位于usbd_conf.c
* 2、16k采样，双声道，10ms出320点数据
* 3、1ms间隔发送，10ms发送10次，每次发送320/10 = 32点数据 数据大小64字节（16bit*32）
* 4、接收来自MIC数据，10ms来一次每次双通道160点*2
* @version V1.0
*/
/** Includes -----------------------------------------------------------------*/
/* Private includes ----------------------------------------------------------*/
#include "USB_Audio_Port.h"
#include "main.h"
#include <arm_math.h>
#include "usbd_audio.h"
/** Use C compiler -----------------------------------------------------------*/
#ifdef __cplusplus ///<use C compiler
extern "C" {
#endif
/** Private typedef ----------------------------------------------------------*/
/** Private macros -----------------------------------------------------------*/
#define USB_RX_BUF_SIZE_MAX 1024 /**< 接收缓冲区设置1024*2Bytes*/
#define USB_PORT_AUDIO_OUT_PACKET AUDIO_PORT_OUT_SIZE /**< 一次发送大小字节数*/
#define USB_PORT_AUDIO_BUF_SIZE AUDIO_TOTAL_BUF_SIZE
#define USB_PORT_AUDIO_IN_EP AUDIO_PORT_IN_EP_DIR_ID
#define USB_PORT_AUDIO_OUT_EP AUDIO_PORT_OUT_EP_DIR_ID
/** Private constants --------------------------------------------------------*/
/** Public variables ---------------------------------------------------------*/
/** Private variables --------------------------------------------------------*/
/*音频缓冲区*/
static CQ_handleTypeDef USB_Audio_Data_Handle;
static int16_t USB_Audio_Receive_Buf[STEREO_FRAME_SIZE] = {0};
static uint16_t USB_Audio_Send_Buf[USB_RX_BUF_SIZE_MAX];
/** Private function prototypes ----------------------------------------------*/
/** Private user code --------------------------------------------------------*/
/** Private application code -------------------------------------------------*/
/*******************************************************************************
*
* Static code
*
********************************************************************************
*/
/**
******************************************************************
* @brief USB音频接口初始化
* @param [in]None.
* @return None.
* @author aron566
* @version V1.0
* @date 2021-06-02
******************************************************************
*/
static void USB_Audio_Port_Init(void)
{
/*初始化接收音频缓冲区*/
CQ_16_init(&USB_Audio_Data_Handle, USB_Audio_Send_Buf, USB_RX_BUF_SIZE_MAX);
}
/**
******************************************************************
* @brief 向USB缓冲区数据加入数据
* @param [in]Data 待加入数据.
* @param [in]Size 待加入数据长度Size个16Bit.
* @return None.
* @author aron566
* @version V1.0
* @date 2021-06-04
******************************************************************
*/
static inline void USB_Audio_Port_Put_Audio_Data(const int16_t *Data, uint32_t Size)
{
CQ_16putData(&USB_Audio_Data_Handle, (const uint16_t *)Data, Size);
}
/** Public application code --------------------------------------------------*/
/*******************************************************************************
*
* Public code
*
********************************************************************************
*/
/**
******************************************************************
* @brief USB缓冲区数据接收来自HOST
* @param [in]pdev device instance
* @param [in]epnum 端点号
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
uint8_t USB_Audio_Port_DataOut(void *xpdev, uint8_t epnum)
{
uint16_t PacketSize;
USBD_AUDIO_HandleTypeDef *haudio;
USBD_HandleTypeDef *pdev = (USBD_HandleTypeDef *)xpdev;
haudio = (USBD_AUDIO_HandleTypeDef *)pdev->pClassData;
if (haudio == NULL)
{
return (uint8_t)USBD_FAIL;
}
if (epnum == USB_PORT_AUDIO_OUT_EP)
{
/* Get received data packet length */
PacketSize = (uint16_t)USBD_LL_GetRxDataSize(pdev, epnum);
/* Packet received Callback */
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->PeriodicTC(&haudio->buffer[haudio->wr_ptr],
PacketSize, AUDIO_OUT_TC);
/* Increment the Buffer pointer or roll it back when all buffers are full */
haudio->wr_ptr += PacketSize;
if (haudio->wr_ptr == AUDIO_TOTAL_BUF_SIZE)
{
/* All buffers are full: roll back */
haudio->wr_ptr = 0U;
if (haudio->offset == AUDIO_OFFSET_UNKNOWN)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->AudioCmd(&haudio->buffer[0],
AUDIO_TOTAL_BUF_SIZE / 2U,
AUDIO_CMD_START);
haudio->offset = AUDIO_OFFSET_NONE;
}
}
if (haudio->rd_enable == 0U)
{
if (haudio->wr_ptr == (AUDIO_TOTAL_BUF_SIZE / 2U))
{
haudio->rd_enable = 1U;
}
}
/* Prepare Out endpoint to receive next audio packet */
(void)USBD_LL_PrepareReceive(pdev, USB_PORT_AUDIO_OUT_EP,
&haudio->buffer[haudio->wr_ptr],
AUDIO_OUT_PACKET);
}
return (uint8_t)USBD_OK;
}
/**
******************************************************************
* @brief USB缓冲区数据发送至HOST
* @param [in]pdev device instance
* @param [in]epnum 端点号
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
uint8_t USB_Audio_Port_DataIn(void *xpdev, uint8_t epnum)
{
USBD_HandleTypeDef *pdev = (USBD_HandleTypeDef *)xpdev;
USBD_AUDIO_HandleTypeDef *haudio = (USBD_AUDIO_HandleTypeDef*) pdev->pClassData;
USBD_LL_FlushEP(pdev, USB_PORT_AUDIO_IN_EP);
if(CQ_getLength(&USB_Audio_Data_Handle) < USB_PORT_AUDIO_OUT_PACKET/2)
{
return (uint8_t)USBD_BUSY;
}
CQ_16getData(&USB_Audio_Data_Handle, (uint16_t *)haudio->buffer, USB_PORT_AUDIO_OUT_PACKET/2);
return USBD_LL_Transmit(pdev, USB_PORT_AUDIO_IN_EP, haudio->buffer, USB_PORT_AUDIO_OUT_PACKET);
}
/**
******************************************************************
* @brief 反初始化音频输出端点
* @param [in]pdev
* @param [in]cfgidx
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
uint8_t USB_Audio_Port_EP_OUT_DeInit(void *xpdev, uint8_t cfgidx)
{
UNUSED(cfgidx);
USBD_HandleTypeDef *pdev = (USBD_HandleTypeDef *)xpdev;
/* Open EP OUT */
(void)USBD_LL_CloseEP(pdev, USB_PORT_AUDIO_OUT_EP);
pdev->ep_out[USB_PORT_AUDIO_OUT_EP & 0xFU].is_used = 0U;
pdev->ep_out[USB_PORT_AUDIO_OUT_EP & 0xFU].bInterval = 0U;
/* DeInit physical Interface components */
if (pdev->pClassData != NULL)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->DeInit(0U);
(void)USBD_free(pdev->pClassData);
pdev->pClassData = NULL;
}
return (uint8_t)USBD_OK;
}
/**
******************************************************************
* @brief 反初始化音频输入端点
* @param [in]pdev
* @param [in]cfgidx
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
uint8_t USB_Audio_Port_EP_IN_DeInit(void *xpdev, uint8_t cfgidx)
{
UNUSED(cfgidx);
USBD_HandleTypeDef *pdev = (USBD_HandleTypeDef *)xpdev;
/* Open EP OUT */
USBD_LL_CloseEP(pdev, USB_PORT_AUDIO_IN_EP);
/* DeInit physical Interface components */
if (pdev->pClassData != NULL)
{
((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->DeInit(0U);
(void)USBD_free(pdev->pClassData);
pdev->pClassData = NULL;
}
return (uint8_t)USBD_OK;
}
/**
******************************************************************
* @brief 初始化为音频输出端点
* @param [in]pdev
* @param [in]cfgidx
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
uint8_t USB_Audio_Port_EP_OUT_Init(void *xpdev, uint8_t cfgidx)
{
UNUSED(cfgidx);
USBD_AUDIO_HandleTypeDef *haudio;
USBD_HandleTypeDef *pdev = (USBD_HandleTypeDef *)xpdev;
/* Allocate Audio structure */
haudio = USBD_malloc(sizeof(USBD_AUDIO_HandleTypeDef));
if (haudio == NULL)
{
pdev->pClassData = NULL;
return (uint8_t)USBD_EMEM;
}
pdev->pClassData = (void *)haudio;
if (pdev->dev_speed == USBD_SPEED_HIGH)
{
pdev->ep_out[USB_PORT_AUDIO_OUT_EP & 0xFU].bInterval = AUDIO_HS_BINTERVAL;
}
else /* LOW and FULL-speed endpoints */
{
pdev->ep_out[USB_PORT_AUDIO_OUT_EP & 0xFU].bInterval = AUDIO_FS_BINTERVAL;
}
/* Open EP OUT */
(void)USBD_LL_OpenEP(pdev, USB_PORT_AUDIO_OUT_EP, USBD_EP_TYPE_ISOC, USB_PORT_AUDIO_OUT_PACKET);
pdev->ep_out[USB_PORT_AUDIO_OUT_EP & 0xFU].is_used = 1U;
haudio->alt_setting = 0U;
haudio->offset = AUDIO_OFFSET_UNKNOWN;
haudio->wr_ptr = 0U;
haudio->rd_ptr = 0U;
haudio->rd_enable = 0U;
/* Initialize the Audio output Hardware layer */
if (((USBD_AUDIO_ItfTypeDef *)pdev->pUserData)->Init(USBD_AUDIO_FREQ,
AUDIO_DEFAULT_VOLUME,
0U) != 0U)
{
return (uint8_t)USBD_FAIL;
}
/* Prepare Out endpoint to receive 1st packet */
(void)USBD_LL_PrepareReceive(pdev, USB_PORT_AUDIO_OUT_EP, haudio->buffer,
AUDIO_OUT_PACKET);
return (uint8_t)USBD_OK;
}
/**
******************************************************************
* @brief 初始化为音频输入端点
* @param [in]pdev
* @param [in]cfgidx
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
uint8_t USB_Audio_Port_EP_IN_Init(void *xpdev, uint8_t cfgidx)
{
UNUSED(cfgidx);
USBD_AUDIO_HandleTypeDef *haudio;
USBD_HandleTypeDef *pdev = (USBD_HandleTypeDef *)xpdev;
/*USB接口初始化*/
USB_Audio_Port_Init();
/* Allocate Audio structure */
haudio = USBD_malloc(sizeof(USBD_AUDIO_HandleTypeDef));
if (haudio == NULL)
{
pdev->pClassData = NULL;
return (uint8_t)USBD_EMEM;
}
pdev->pClassData = (void *)haudio;
if (pdev->dev_speed == USBD_SPEED_HIGH)
{
pdev->ep_in[USB_PORT_AUDIO_IN_EP & 0xFU].bInterval = AUDIO_HS_BINTERVAL;
}
else /* LOW and FULL-speed endpoints */
{
pdev->ep_in[USB_PORT_AUDIO_IN_EP & 0xFU].bInterval = AUDIO_FS_BINTERVAL;
}
/* Open EP IN */
(void)USBD_LL_OpenEP(pdev, USB_PORT_AUDIO_IN_EP, USBD_EP_TYPE_ISOC, USB_PORT_AUDIO_OUT_PACKET);
pdev->ep_in[USB_PORT_AUDIO_IN_EP & 0xFU].is_used = 1U;
haudio->alt_setting = 0U;
haudio->offset = AUDIO_OFFSET_UNKNOWN;
haudio->wr_ptr = 0U;
haudio->rd_ptr = 0U;
haudio->rd_enable = 0U;
memset(haudio->buffer, 0, USB_PORT_AUDIO_BUF_SIZE);
USBD_LL_Transmit(pdev, USB_PORT_AUDIO_IN_EP, haudio->buffer, USB_PORT_AUDIO_OUT_PACKET);
return (uint8_t)USBD_OK;
}
/**
******************************************************************
* @brief 更新USB音频数据
* @param [in]Left_Audio 左通道数据
* @param [in]Right_Audio 右通道数据
* @return None.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
void USB_Audio_Port_Put_Data(const int16_t *Left_Audio, const int16_t *Right_Audio)
{
/*更新USB音频数据*/
int index = 0, i = 0;
for(i = 0; i < STEREO_FRAME_SIZE; index++)
{
USB_Audio_Receive_Buf[i++] = Left_Audio[index];/**< TO USB LEFT*/
USB_Audio_Receive_Buf[i++] = Right_Audio[index];/**< TO USB RIGHT*/
}
USB_Audio_Port_Put_Audio_Data(USB_Audio_Receive_Buf, STEREO_FRAME_SIZE);
}
/**
******************************************************************
* @brief 是否可以更新音频数据
* @param [in]None.
* @return true 可以.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
bool USB_Audio_Port_Can_Update_Data(void)
{
if(USB_Audio_Data_Handle.size - CQ_getLength(&USB_Audio_Data_Handle) >= STEREO_FRAME_SIZE)
{
return true;
}
return false;
}
#ifdef __cplusplus ///<end extern c
}
#endif
/******************************** End of file *********************************/
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USB_Audio_Port.h
文件中主要定义了相关宏，用于配置USB 麦克风描述符，如通道数，一次发送包大小，采样率（CubeMX配置），最大缓冲区
/**
* @file USB_Audio_Port.h
*
* @date 2021-06-01
*
* @author aron566
*
* @brief
*
* @version V1.0
*/
#ifndef USB_AUDIO_PORT_H
#define USB_AUDIO_PORT_H
/** Includes -----------------------------------------------------------------*/
#include <stdint.h> /**< need definition of uint8_t */
#include <stddef.h> /**< need definition of NULL */
#include <stdbool.h>/**< need definition of BOOL */
#include <stdio.h> /**< if need printf */
#include <stdlib.h>
#include <string.h>
#include <limits.h> /**< need variable max value */
/** Exported macros-----------------------------------------------------------*/
#define AUDIO_PORT_CHANNEL_NUMS 2U /**< MIC音频通道数*/
#define MONO_CHANNEL_SEL 2U /**< 0使用L声道 1使用R声道 2配置MONO*/
#define AUDIO_PORT_USBD_AUDIO_FREQ 16000U /**< 设置音频采样率*/
/*音频类终端类型定义*/
#define AUDIO_PORT_INPUT_TERMINAL_ID_1 0x01
#define AUDIO_PORT_OUTPUT_TERMINAL_ID_3 0x03
#define AUDIO_PORT_INPUT_CTL_ID_2 0x02
#define AUDIO_PORT_SPEAKE_TERMINAL_TYPE_L 0x01U
#define AUDIO_PORT_SPEAKE_TERMINAL_TYPE_H 0x03U
#define AUDIO_PORT_STREAM_TERMINAL_TYPE_L 0x01U
#define AUDIO_PORT_STREAM_TERMINAL_TYPE_H 0x01U
#define AUDIO_PORT_MICRO_PHONE_TERMINAL_L 0x01U
#define AUDIO_PORT_MICRO_PHONE_TERMINAL_H 0x02U
#define AUDIO_PORT_IN_EP_DIR_ID 0x81 /**< (Direction=IN EndpointID=1)*/
#define AUDIO_PORT_OUT_EP_DIR_ID 0x01 /**< (Direction=OUT EndpointID=1)*/
/*立体声配置*/
#if AUDIO_PORT_CHANNEL_NUMS == 2
/*使用L+R声道*/
#define AUDIO_PORT_CHANNEL_CONFIG_L 0x03U
#define AUDIO_PORT_CHANNEL_CONFIG_H 0x00U
/*单声道配置*/
#elif AUDIO_PORT_CHANNEL_NUMS == 1
#if MONO_CHANNEL_SEL == 0
/*使用L声道*/
#define AUDIO_PORT_CHANNEL_CONFIG_L 0x01U
#define AUDIO_PORT_CHANNEL_CONFIG_H 0x00U
#elif MONO_CHANNEL_SEL == 1
/*使用R声道*/
#define AUDIO_PORT_CHANNEL_CONFIG_L 0x02U
#define AUDIO_PORT_CHANNEL_CONFIG_H 0x00U
#elif MONO_CHANNEL_SEL == 2
/*使用默认MONO声道*/
#define AUDIO_PORT_CHANNEL_CONFIG_L 0x00U
#define AUDIO_PORT_CHANNEL_CONFIG_H 0x00U
#endif
#endif
/*轮询时间间隔*/
#define AUDIO_PORT_FS_BINTERVAL 1U /**< 1ms一次轮询*/
/*音频传输大小设置*/
#define AUDIO_PORT_PACKET_SZE(frq) (uint8_t)(((frq * 2U * 2U)/(1000U/AUDIO_PORT_FS_BINTERVAL)) & 0xFFU), \
(uint8_t)((((frq * 2U * 2U)/(1000U/AUDIO_PORT_FS_BINTERVAL)) >> 8) & 0xFFU)
#define AUDIO_PORT_OUT_SIZE ((AUDIO_PORT_USBD_AUDIO_FREQ * 2U * 2U)/(1000U/AUDIO_PORT_FS_BINTERVAL)) /**< 音频发送大小Byte*/
#define AUDIO_PORT_BUF_SIZE AUDIO_PORT_OUT_SIZE*4 /**< 音频缓冲区大小 大于3的偶数倍*/
/** Private includes ---------------------------------------------------------*/
/** Use C compiler -----------------------------------------------------------*/
#ifdef __cplusplus ///<use C compiler
extern "C" {
#endif
/** Private defines ----------------------------------------------------------*/
/** Exported typedefines -----------------------------------------------------*/
/** Exported constants -------------------------------------------------------*/
/** Exported variables -------------------------------------------------------*/
/** Exported functions prototypes --------------------------------------------*/
/*是否可以更新音频数据*/
bool USB_Audio_Port_Can_Update_Data(void);
/*向USB缓冲区数据加入数据*/
void USB_Audio_Port_Put_Data(const int16_t *Left_Audio, const int16_t *Right_Audio);
/*初始化音频输出端点*/
uint8_t USB_Audio_Port_EP_IN_Init(void *xpdev, uint8_t cfgidx);
/*初始化音频输入端点*/
uint8_t USB_Audio_Port_EP_OUT_Init(void *xpdev, uint8_t cfgidx);
/*反初始化音频输出端点*/
uint8_t USB_Audio_Port_EP_IN_DeInit(void *xpdev, uint8_t cfgidx);
/*反初始化音频输入端点*/
uint8_t USB_Audio_Port_EP_OUT_DeInit(void *xpdev, uint8_t cfgidx);
/*USB缓冲区数据发送至HOST*/
uint8_t USB_Audio_Port_DataIn(void *xpdev, uint8_t epnum);
/*USB缓冲区数据接收来自HOST*/
uint8_t USB_Audio_Port_DataOut(void *xpdev, uint8_t epnum);
#ifdef __cplusplus ///<end extern c
}
#endif
#endif
/******************************** End of file *********************************/
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如何使用
1、用usb_audio.c和对应头文件替换你原先的文件
2、工程添加USB_Audio_Port.c及USB_Audio_Port.h，环形缓冲区
3、调用接口添加新音频到缓冲区即可 USB_Audio_Port_Put_Data
测试正弦音频
/**
******************************************************************
* @brief 正弦生成
* @param [in]None.
* @return None.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
#define SIN_WAVE_SAMPLE_RATE 16000/**< 16K采样*/
#define SIN_WAVE_FQ 100/**< 100Hz正弦*/
#define SIN_WAVE_MAX_POINTS SIN_WAVE_SAMPLE_RATE/SIN_WAVE_FQ
#define SIN_WAVE_DB_VAL 50.l
static int16_t Sin_Wave_PCM_Buf[SIN_WAVE_MAX_POINTS] = {0};
static void Sin_Audio_Init(void)
{
float Average_Range = (float)pow(10.L, (double)((double)SIN_WAVE_DB_VAL - 94.f) / 20.L)*32767.f;
for(int i = 0; i < SIN_WAVE_MAX_POINTS; i++)
{
Sin_Wave_PCM_Buf[i] = Average_Range * arm_sin_f32(2.f*3.14f * SIN_WAVE_FQ / SIN_WAVE_SAMPLE_RATE * i);
}
}
/**
******************************************************************
* @brief 更新USB音频数据
* @param [in]pdev
* @param [in]cfgidx
* @return USBD_OK 正常.
* @author aron566
* @version V1.0
* @date 2021-06-01
******************************************************************
*/
void USB_Audio_Port_Put_Data(const int16_t *Left_Audio, const int16_t *Right_Audio)
{
/*更新USB音频数据*/
static int index = 0;
for(int i = 0; i < STEREO_FRAME_SIZE;)
{
USB_Audio_Receive_Buf[i++] = Sin_Wave_PCM_Buf[index];/**< TO USB LEFT*/
USB_Audio_Receive_Buf[i++] = Sin_Wave_PCM_Buf[index];/**< TO USB RIGHT*/
index = ((index+1)%(SIN_WAVE_MAX_POINTS));
}
USB_Audio_Port_Put_Audio_Data(USB_Audio_Receive_Buf, STEREO_FRAME_SIZE);
}
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测试工程
USB缓冲区设置
H7的HAL库USB问题
此版本遇到不完整的传输会中断传输，这里需要注意下。
/**
******************************************************************************
* @file stm32h7xx_hal_pcd.c
* @author MCD Application Team
* @brief PCD HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the USB Peripheral Controller:
* + Initialization and de-initialization functions
* + IO operation functions
* + Peripheral Control functions
* + Peripheral State functions
*
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The PCD HAL driver can be used as follows:
(#) Declare a PCD_HandleTypeDef handle structure, for example:
PCD_HandleTypeDef hpcd;
(#) Fill parameters of Init structure in HCD handle
(#) Call HAL_PCD_Init() API to initialize the PCD peripheral (Core, Device core, ...)
(#) Initialize the PCD low level resources through the HAL_PCD_MspInit() API:
(##) Enable the PCD/USB Low Level interface clock using
(+++) __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
(+++) __HAL_RCC_USB_OTG_HS_CLK_ENABLE(); (For High Speed Mode)
(##) Initialize the related GPIO clocks
(##) Configure PCD pin-out
(##) Configure PCD NVIC interrupt
(#)Associate the Upper USB device stack to the HAL PCD Driver:
(##) hpcd.pData = pdev;
(#)Enable PCD transmission and reception:
(##) HAL_PCD_Start();
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_hal.h"
/** @addtogroup STM32H7xx_HAL_Driver
* @{
*/
/** @defgroup PCD PCD
* @brief PCD HAL module driver
* @{
*/
#ifdef HAL_PCD_MODULE_ENABLED
#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup PCD_Private_Macros PCD Private Macros
* @{
*/
#define PCD_MIN(a, b) (((a) < (b)) ? (a) : (b))
#define PCD_MAX(a, b) (((a) > (b)) ? (a) : (b))
/**
* @}
*/
/* Private functions prototypes ----------------------------------------------*/
/** @defgroup PCD_Private_Functions PCD Private Functions
* @{
*/
#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum);
static HAL_StatusTypeDef PCD_EP_OutXfrComplete_int(PCD_HandleTypeDef *hpcd, uint32_t epnum);
static HAL_StatusTypeDef PCD_EP_OutSetupPacket_int(PCD_HandleTypeDef *hpcd, uint32_t epnum);
#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup PCD_Exported_Functions PCD Exported Functions
* @{
*/
/** @defgroup PCD_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and de-initialization functions #####
===============================================================================
[..] This section provides functions allowing to:
@endverbatim
* @{
*/
/**
* @brief Initializes the PCD according to the specified
* parameters in the PCD_InitTypeDef and initialize the associated handle.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx;
uint8_t i;
/* Check the PCD handle allocation */
if (hpcd == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_PCD_ALL_INSTANCE(hpcd->Instance));
USBx = hpcd->Instance;
if (hpcd->State == HAL_PCD_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hpcd->Lock = HAL_UNLOCKED;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SOFCallback = HAL_PCD_SOFCallback;
hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
hpcd->ResetCallback = HAL_PCD_ResetCallback;
hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback;
hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback;
hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback;
hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback;
hpcd->LPMCallback = HAL_PCDEx_LPM_Callback;
hpcd->BCDCallback = HAL_PCDEx_BCD_Callback;
if (hpcd->MspInitCallback == NULL)
{
hpcd->MspInitCallback = HAL_PCD_MspInit;
}
/* Init the low level hardware */
hpcd->MspInitCallback(hpcd);
#else
/* Init the low level hardware : GPIO, CLOCK, NVIC... */
HAL_PCD_MspInit(hpcd);
#endif /* (USE_HAL_PCD_REGISTER_CALLBACKS) */
}
hpcd->State = HAL_PCD_STATE_BUSY;
/* Disable DMA mode for FS instance */
if ((USBx->CID & (0x1U << 8)) == 0U)
{
hpcd->Init.dma_enable = 0U;
}
/* Disable the Interrupts */
__HAL_PCD_DISABLE(hpcd);
/*Init the Core (common init.) */
if (USB_CoreInit(hpcd->Instance, hpcd->Init) != HAL_OK)
{
hpcd->State = HAL_PCD_STATE_ERROR;
return HAL_ERROR;
}
/* Force Device Mode*/
(void)USB_SetCurrentMode(hpcd->Instance, USB_DEVICE_MODE);
/* Init endpoints structures */
for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
{
/* Init ep structure */
hpcd->IN_ep[i].is_in = 1U;
hpcd->IN_ep[i].num = i;
hpcd->IN_ep[i].tx_fifo_num = i;
/* Control until ep is activated */
hpcd->IN_ep[i].type = EP_TYPE_CTRL;
hpcd->IN_ep[i].maxpacket = 0U;
hpcd->IN_ep[i].xfer_buff = 0U;
hpcd->IN_ep[i].xfer_len = 0U;
}
for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
{
hpcd->OUT_ep[i].is_in = 0U;
hpcd->OUT_ep[i].num = i;
/* Control until ep is activated */
hpcd->OUT_ep[i].type = EP_TYPE_CTRL;
hpcd->OUT_ep[i].maxpacket = 0U;
hpcd->OUT_ep[i].xfer_buff = 0U;
hpcd->OUT_ep[i].xfer_len = 0U;
}
/* Init Device */
if (USB_DevInit(hpcd->Instance, hpcd->Init) != HAL_OK)
{
hpcd->State = HAL_PCD_STATE_ERROR;
return HAL_ERROR;
}
hpcd->USB_Address = 0U;
hpcd->State = HAL_PCD_STATE_READY;
/* Activate LPM */
if (hpcd->Init.lpm_enable == 1U)
{
(void)HAL_PCDEx_ActivateLPM(hpcd);
}
(void)USB_DevDisconnect(hpcd->Instance);
return HAL_OK;
}
/**
* @brief DeInitializes the PCD peripheral.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DeInit(PCD_HandleTypeDef *hpcd)
{
/* Check the PCD handle allocation */
if (hpcd == NULL)
{
return HAL_ERROR;
}
hpcd->State = HAL_PCD_STATE_BUSY;
/* Stop Device */
if (USB_StopDevice(hpcd->Instance) != HAL_OK)
{
return HAL_ERROR;
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
if (hpcd->MspDeInitCallback == NULL)
{
hpcd->MspDeInitCallback = HAL_PCD_MspDeInit; /* Legacy weak MspDeInit */
}
/* DeInit the low level hardware */
hpcd->MspDeInitCallback(hpcd);
#else
/* DeInit the low level hardware: CLOCK, NVIC.*/
HAL_PCD_MspDeInit(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
hpcd->State = HAL_PCD_STATE_RESET;
return HAL_OK;
}
/**
* @brief Initializes the PCD MSP.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_MspInit could be implemented in the user file
*/
}
/**
* @brief DeInitializes PCD MSP.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_MspDeInit could be implemented in the user file
*/
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
/**
* @brief Register a User USB PCD Callback
* To be used instead of the weak predefined callback
* @param hpcd USB PCD handle
* @param CallbackID ID of the callback to be registered
* This parameter can be one of the following values:
* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
* @param pCallback pointer to the Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterCallback(PCD_HandleTypeDef *hpcd,
HAL_PCD_CallbackIDTypeDef CallbackID,
pPCD_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
switch (CallbackID)
{
case HAL_PCD_SOF_CB_ID :
hpcd->SOFCallback = pCallback;
break;
case HAL_PCD_SETUPSTAGE_CB_ID :
hpcd->SetupStageCallback = pCallback;
break;
case HAL_PCD_RESET_CB_ID :
hpcd->ResetCallback = pCallback;
break;
case HAL_PCD_SUSPEND_CB_ID :
hpcd->SuspendCallback = pCallback;
break;
case HAL_PCD_RESUME_CB_ID :
hpcd->ResumeCallback = pCallback;
break;
case HAL_PCD_CONNECT_CB_ID :
hpcd->ConnectCallback = pCallback;
break;
case HAL_PCD_DISCONNECT_CB_ID :
hpcd->DisconnectCallback = pCallback;
break;
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = pCallback;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else if (hpcd->State == HAL_PCD_STATE_RESET)
{
switch (CallbackID)
{
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = pCallback;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister an USB PCD Callback
* USB PCD callback is redirected to the weak predefined callback
* @param hpcd USB PCD handle
* @param CallbackID ID of the callback to be unregistered
* This parameter can be one of the following values:
* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterCallback(PCD_HandleTypeDef *hpcd, HAL_PCD_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
/* Setup Legacy weak Callbacks */
if (hpcd->State == HAL_PCD_STATE_READY)
{
switch (CallbackID)
{
case HAL_PCD_SOF_CB_ID :
hpcd->SOFCallback = HAL_PCD_SOFCallback;
break;
case HAL_PCD_SETUPSTAGE_CB_ID :
hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
break;
case HAL_PCD_RESET_CB_ID :
hpcd->ResetCallback = HAL_PCD_ResetCallback;
break;
case HAL_PCD_SUSPEND_CB_ID :
hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
break;
case HAL_PCD_RESUME_CB_ID :
hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
break;
case HAL_PCD_CONNECT_CB_ID :
hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
break;
case HAL_PCD_DISCONNECT_CB_ID :
hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
break;
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = HAL_PCD_MspInit;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else if (hpcd->State == HAL_PCD_STATE_RESET)
{
switch (CallbackID)
{
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = HAL_PCD_MspInit;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Data OUT Stage Callback
* To be used instead of the weak HAL_PCD_DataOutStageCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Data OUT Stage Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd,
pPCD_DataOutStageCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataOutStageCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Data OUT Stage Callback
* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataOutStageCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback; /* Legacy weak DataOutStageCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Data IN Stage Callback
* To be used instead of the weak HAL_PCD_DataInStageCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Data IN Stage Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterDataInStageCallback(PCD_HandleTypeDef *hpcd,
pPCD_DataInStageCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataInStageCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Data IN Stage Callback
* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataInStageCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterDataInStageCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback; /* Legacy weak DataInStageCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Iso OUT incomplete Callback
* To be used instead of the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Iso OUT incomplete Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd,
pPCD_IsoOutIncpltCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOOUTIncompleteCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Iso OUT incomplete Callback
* USB PCD Iso OUT incomplete Callback is redirected
* to the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback; /* Legacy weak ISOOUTIncompleteCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Iso IN incomplete Callback
* To be used instead of the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Iso IN incomplete Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd,
pPCD_IsoInIncpltCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOINIncompleteCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Iso IN incomplete Callback
* USB PCD Iso IN incomplete Callback is redirected
* to the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback; /* Legacy weak ISOINIncompleteCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD BCD Callback
* To be used instead of the weak HAL_PCDEx_BCD_Callback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD BCD Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterBcdCallback(PCD_HandleTypeDef *hpcd, pPCD_BcdCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->BCDCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD BCD Callback
* USB BCD Callback is redirected to the weak HAL_PCDEx_BCD_Callback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterBcdCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->BCDCallback = HAL_PCDEx_BCD_Callback; /* Legacy weak HAL_PCDEx_BCD_Callback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD LPM Callback
* To be used instead of the weak HAL_PCDEx_LPM_Callback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD LPM Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterLpmCallback(PCD_HandleTypeDef *hpcd, pPCD_LpmCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->LPMCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD LPM Callback
* USB LPM Callback is redirected to the weak HAL_PCDEx_LPM_Callback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterLpmCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->LPMCallback = HAL_PCDEx_LPM_Callback; /* Legacy weak HAL_PCDEx_LPM_Callback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup PCD_Exported_Functions_Group2 Input and Output operation functions
* @brief Data transfers functions
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to manage the PCD data
transfers.
@endverbatim
* @{
*/
/**
* @brief Start the USB device
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_Start(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
__HAL_LOCK(hpcd);
if ((hpcd->Init.battery_charging_enable == 1U) &&
(hpcd->Init.phy_itface != USB_OTG_ULPI_PHY))
{
/* Enable USB Transceiver */
USBx->GCCFG |= USB_OTG_GCCFG_PWRDWN;
}
__HAL_PCD_ENABLE(hpcd);
(void)USB_DevConnect(hpcd->Instance);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Stop the USB device.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_Stop(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
__HAL_LOCK(hpcd);
__HAL_PCD_DISABLE(hpcd);
(void)USB_DevDisconnect(hpcd->Instance);
(void)USB_FlushTxFifo(hpcd->Instance, 0x10U);
if ((hpcd->Init.battery_charging_enable == 1U) &&
(hpcd->Init.phy_itface != USB_OTG_ULPI_PHY))
{
/* Disable USB Transceiver */
USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN);
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
/**
* @brief Handles PCD interrupt request.
* @param hpcd PCD handle
* @retval HAL status
*/
void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
USB_OTG_EPTypeDef *ep;
uint32_t i;
uint32_t ep_intr;
uint32_t epint;
uint32_t epnum;
uint32_t fifoemptymsk;
uint32_t RegVal;
/* ensure that we are in device mode */
if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE)
{
/* avoid spurious interrupt */
if (__HAL_PCD_IS_INVALID_INTERRUPT(hpcd))
{
return;
}
/* store current frame number */
hpcd->FrameNumber = (USBx_DEVICE->DSTS & USB_OTG_DSTS_FNSOF_Msk) >> USB_OTG_DSTS_FNSOF_Pos;
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS))
{
/* incorrect mode, acknowledge the interrupt */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS);
}
/* Handle RxQLevel Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_RXFLVL))
{
USB_MASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
RegVal = USBx->GRXSTSP;
ep = &hpcd->OUT_ep[RegVal & USB_OTG_GRXSTSP_EPNUM];
if (((RegVal & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_DATA_UPDT)
{
if ((RegVal & USB_OTG_GRXSTSP_BCNT) != 0U)
{
(void)USB_ReadPacket(USBx, ep->xfer_buff,
(uint16_t)((RegVal & USB_OTG_GRXSTSP_BCNT) >> 4));
ep->xfer_buff += (RegVal & USB_OTG_GRXSTSP_BCNT) >> 4;
ep->xfer_count += (RegVal & USB_OTG_GRXSTSP_BCNT) >> 4;
}
}
else if (((RegVal & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_SETUP_UPDT)
{
(void)USB_ReadPacket(USBx, (uint8_t *)hpcd->Setup, 8U);
ep->xfer_count += (RegVal & USB_OTG_GRXSTSP_BCNT) >> 4;
}
else
{
/* ... */
}
USB_UNMASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT))
{
epnum = 0U;
/* Read in the device interrupt bits */
ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance);
while (ep_intr != 0U)
{
if ((ep_intr & 0x1U) != 0U)
{
epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, (uint8_t)epnum);
if ((epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC);
(void)PCD_EP_OutXfrComplete_int(hpcd, epnum);
}
if ((epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP);
/* Class B setup phase done for previous decoded setup */
(void)PCD_EP_OutSetupPacket_int(hpcd, epnum);
}
if ((epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS);
}
/* Clear OUT Endpoint disable interrupt */
if ((epint & USB_OTG_DOEPINT_EPDISD) == USB_OTG_DOEPINT_EPDISD)
{
if ((USBx->GINTSTS & USB_OTG_GINTSTS_BOUTNAKEFF) == USB_OTG_GINTSTS_BOUTNAKEFF)
{
USBx_DEVICE->DCTL |= USB_OTG_DCTL_CGONAK;
}
ep = &hpcd->OUT_ep[epnum];
if (ep->is_iso_incomplete == 1U)
{
ep->is_iso_incomplete = 0U;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_EPDISD);
}
/* Clear Status Phase Received interrupt */
if ((epint & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
}
/* Clear OUT NAK interrupt */
if ((epint & USB_OTG_DOEPINT_NAK) == USB_OTG_DOEPINT_NAK)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_NAK);
}
}
epnum++;
ep_intr >>= 1U;
}
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT))
{
/* Read in the device interrupt bits */
ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance);
epnum = 0U;
while (ep_intr != 0U)
{
if ((ep_intr & 0x1U) != 0U) /* In ITR */
{
epint = USB_ReadDevInEPInterrupt(hpcd->Instance, (uint8_t)epnum);
if ((epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC)
{
fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK));
USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC);
if (hpcd->Init.dma_enable == 1U)
{
hpcd->IN_ep[epnum].xfer_buff += hpcd->IN_ep[epnum].maxpacket;
/* this is ZLP, so prepare EP0 for next setup */
if ((epnum == 0U) && (hpcd->IN_ep[epnum].xfer_len == 0U))
{
/* prepare to rx more setup packets */
(void)USB_EP0_OutStart(hpcd->Instance, 1U, (uint8_t *)hpcd->Setup);
}
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataInStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataInStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
if ((epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC);
}
if ((epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE);
}
if ((epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE);
}
if ((epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD)
{
(void)USB_FlushTxFifo(USBx, epnum);
ep = &hpcd->IN_ep[epnum];
if (ep->is_iso_incomplete == 1U)
{
ep->is_iso_incomplete = 0U;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD);
}
if ((epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE)
{
(void)PCD_WriteEmptyTxFifo(hpcd, epnum);
}
}
epnum++;
ep_intr >>= 1U;
}
}
/* Handle Resume Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT))
{
/* Clear the Remote Wake-up Signaling */
USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
if (hpcd->LPM_State == LPM_L1)
{
hpcd->LPM_State = LPM_L0;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->LPMCallback(hpcd, PCD_LPM_L0_ACTIVE);
#else
HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L0_ACTIVE);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
else
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ResumeCallback(hpcd);
#else
HAL_PCD_ResumeCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT);
}
/* Handle Suspend Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP))
{
if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SuspendCallback(hpcd);
#else
HAL_PCD_SuspendCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP);
}
/* Handle LPM Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT))
{
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT);
if (hpcd->LPM_State == LPM_L0)
{
hpcd->LPM_State = LPM_L1;
hpcd->BESL = (hpcd->Instance->GLPMCFG & USB_OTG_GLPMCFG_BESL) >> 2U;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->LPMCallback(hpcd, PCD_LPM_L1_ACTIVE);
#else
HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L1_ACTIVE);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
else
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SuspendCallback(hpcd);
#else
HAL_PCD_SuspendCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
}
/* Handle Reset Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBRST))
{
USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
(void)USB_FlushTxFifo(hpcd->Instance, 0x10U);
for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
{
USBx_INEP(i)->DIEPINT = 0xFB7FU;
USBx_INEP(i)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL;
USBx_OUTEP(i)->DOEPINT = 0xFB7FU;
USBx_OUTEP(i)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL;
USBx_OUTEP(i)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK;
}
USBx_DEVICE->DAINTMSK |= 0x10001U;
if (hpcd->Init.use_dedicated_ep1 != 0U)
{
USBx_DEVICE->DOUTEP1MSK |= USB_OTG_DOEPMSK_STUPM |
USB_OTG_DOEPMSK_XFRCM |
USB_OTG_DOEPMSK_EPDM;
USBx_DEVICE->DINEP1MSK |= USB_OTG_DIEPMSK_TOM |
USB_OTG_DIEPMSK_XFRCM |
USB_OTG_DIEPMSK_EPDM;
}
else
{
USBx_DEVICE->DOEPMSK |= USB_OTG_DOEPMSK_STUPM |
USB_OTG_DOEPMSK_XFRCM |
USB_OTG_DOEPMSK_EPDM |
USB_OTG_DOEPMSK_OTEPSPRM |
USB_OTG_DOEPMSK_NAKM;
USBx_DEVICE->DIEPMSK |= USB_OTG_DIEPMSK_TOM |
USB_OTG_DIEPMSK_XFRCM |
USB_OTG_DIEPMSK_EPDM;
}
/* Set Default Address to 0 */
USBx_DEVICE->DCFG &= ~USB_OTG_DCFG_DAD;
/* setup EP0 to receive SETUP packets */
(void)USB_EP0_OutStart(hpcd->Instance, (uint8_t)hpcd->Init.dma_enable,
(uint8_t *)hpcd->Setup);
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBRST);
}
/* Handle Enumeration done Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE))
{
(void)USB_ActivateSetup(hpcd->Instance);
hpcd->Init.speed = USB_GetDevSpeed(hpcd->Instance);
/* Set USB Turnaround time */
(void)USB_SetTurnaroundTime(hpcd->Instance,
HAL_RCC_GetHCLKFreq(),
(uint8_t)hpcd->Init.speed);
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ResetCallback(hpcd);
#else
HAL_PCD_ResetCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE);
}
/* Handle SOF Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SOF))
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SOFCallback(hpcd);
#else
HAL_PCD_SOFCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SOF);
}
/* Handle Global OUT NAK effective Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_BOUTNAKEFF))
{
USBx->GINTMSK &= ~USB_OTG_GINTMSK_GONAKEFFM;
for (epnum = 1U; epnum < hpcd->Init.dev_endpoints; epnum++)
{
if (hpcd->OUT_ep[epnum].is_iso_incomplete == 1U)
{
/* Abort current transaction and disable the EP */
(void)HAL_PCD_EP_Abort(hpcd, (uint8_t)epnum);
}
}
}
/* Handle Incomplete ISO IN Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR))
{
for (epnum = 1U; epnum < hpcd->Init.dev_endpoints; epnum++)
{
RegVal = USBx_INEP(epnum)->DIEPCTL;
if ((hpcd->IN_ep[epnum].type == EP_TYPE_ISOC) &&
((RegVal & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA))
{
hpcd->IN_ep[epnum].is_iso_incomplete = 1U;
// /* Abort current transaction and disable the EP */
// (void)HAL_PCD_EP_Abort(hpcd, (uint8_t)(epnum | 0x80U));
/* Keep application checking the corresponding Iso IN endpoint
causing the incomplete Interrupt */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
}
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR);
}
/* Handle Incomplete ISO OUT Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
{
for (epnum = 1U; epnum < hpcd->Init.dev_endpoints; epnum++)
{
RegVal = USBx_OUTEP(epnum)->DOEPCTL;
if ((hpcd->OUT_ep[epnum].type == EP_TYPE_ISOC) &&
((RegVal & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA) &&
((RegVal & (0x1U << 16)) == (hpcd->FrameNumber & 0x1U)))
{
hpcd->OUT_ep[epnum].is_iso_incomplete = 1U;
USBx->GINTMSK |= USB_OTG_GINTMSK_GONAKEFFM;
if ((USBx->GINTSTS & USB_OTG_GINTSTS_BOUTNAKEFF) == 0U)
{
USBx_DEVICE->DCTL |= USB_OTG_DCTL_SGONAK;
break;
}
}
}
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
}
/* Handle Connection event Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT))
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ConnectCallback(hpcd);
#else
HAL_PCD_ConnectCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT);
}
/* Handle Disconnection event Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OTGINT))
{
RegVal = hpcd->Instance->GOTGINT;
if ((RegVal & USB_OTG_GOTGINT_SEDET) == USB_OTG_GOTGINT_SEDET)
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DisconnectCallback(hpcd);
#else
HAL_PCD_DisconnectCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
hpcd->Instance->GOTGINT |= RegVal;
}
}
}
#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
/**
* @brief Data OUT stage callback.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_DataOutStageCallback could be implemented in the user file
*/
}
/**
* @brief Data IN stage callback
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_DataInStageCallback could be implemented in the user file
*/
}
/**
* @brief Setup stage callback
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_SetupStageCallback could be implemented in the user file
*/
}
/**
* @brief USB Start Of Frame callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_SOFCallback could be implemented in the user file
*/
}
/**
* @brief USB Reset callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ResetCallback could be implemented in the user file
*/
}
/**
* @brief Suspend event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_SuspendCallback could be implemented in the user file
*/
}
/**
* @brief Resume event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ResumeCallback could be implemented in the user file
*/
}
/**
* @brief Incomplete ISO OUT callback.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ISOOUTIncompleteCallback could be implemented in the user file
*/
}
/**
* @brief Incomplete ISO IN callback.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ISOINIncompleteCallback could be implemented in the user file
*/
}
/**
* @brief Connection event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ConnectCallback could be implemented in the user file
*/
}
/**
* @brief Disconnection event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_DisconnectCallback could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup PCD_Exported_Functions_Group3 Peripheral Control functions
* @brief management functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to control the PCD data
transfers.
@endverbatim
* @{
*/
/**
* @brief Connect the USB device
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
__HAL_LOCK(hpcd);
if ((hpcd->Init.battery_charging_enable == 1U) &&
(hpcd->Init.phy_itface != USB_OTG_ULPI_PHY))
{
/* Enable USB Transceiver */
USBx->GCCFG |= USB_OTG_GCCFG_PWRDWN;
}
(void)USB_DevConnect(hpcd->Instance);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Disconnect the USB device.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
__HAL_LOCK(hpcd);
(void)USB_DevDisconnect(hpcd->Instance);
if ((hpcd->Init.battery_charging_enable == 1U) &&
(hpcd->Init.phy_itface != USB_OTG_ULPI_PHY))
{
/* Disable USB Transceiver */
USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN);
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Set the USB Device address.
* @param hpcd PCD handle
* @param address new device address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_SetAddress(PCD_HandleTypeDef *hpcd, uint8_t address)
{
__HAL_LOCK(hpcd);
hpcd->USB_Address = address;
(void)USB_SetDevAddress(hpcd->Instance, address);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Open and configure an endpoint.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @param ep_mps endpoint max packet size
* @param ep_type endpoint type
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr,
uint16_t ep_mps, uint8_t ep_type)
{
HAL_StatusTypeDef ret = HAL_OK;
PCD_EPTypeDef *ep;
if ((ep_addr & 0x80U) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 0U;
}
ep->num = ep_addr & EP_ADDR_MSK;
ep->maxpacket = ep_mps;
ep->type = ep_type;
if (ep->is_in != 0U)
{
/* Assign a Tx FIFO */
ep->tx_fifo_num = ep->num;
}
/* Set initial data PID. */
if (ep_type == EP_TYPE_BULK)
{
ep->data_pid_start = 0U;
}
__HAL_LOCK(hpcd);
(void)USB_ActivateEndpoint(hpcd->Instance, ep);
__HAL_UNLOCK(hpcd);
return ret;
}
/**
* @brief Deactivate an endpoint.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if ((ep_addr & 0x80U) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 0U;
}
ep->num = ep_addr & EP_ADDR_MSK;
__HAL_LOCK(hpcd);
(void)USB_DeactivateEndpoint(hpcd->Instance, ep);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Receive an amount of data.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @param pBuf pointer to the reception buffer
* @param len amount of data to be received
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Receive(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len)
{
PCD_EPTypeDef *ep;
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
/*setup and start the Xfer */
ep->xfer_buff = pBuf;
ep->xfer_len = len;
ep->xfer_count = 0U;
ep->is_in = 0U;
ep->num = ep_addr & EP_ADDR_MSK;
if (hpcd->Init.dma_enable == 1U)
{
ep->dma_addr = (uint32_t)pBuf;
}
if ((ep_addr & EP_ADDR_MSK) == 0U)
{
(void)USB_EP0StartXfer(hpcd->Instance, ep, (uint8_t)hpcd->Init.dma_enable);
}
else
{
(void)USB_EPStartXfer(hpcd->Instance, ep, (uint8_t)hpcd->Init.dma_enable);
}
return HAL_OK;
}
/**
* @brief Get Received Data Size
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval Data Size
*/
uint32_t HAL_PCD_EP_GetRxCount(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
return hpcd->OUT_ep[ep_addr & EP_ADDR_MSK].xfer_count;
}
/**
* @brief Send an amount of data
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @param pBuf pointer to the transmission buffer
* @param len amount of data to be sent
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len)
{
PCD_EPTypeDef *ep;
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
/*setup and start the Xfer */
ep->xfer_buff = pBuf;
ep->xfer_len = len;
ep->xfer_count = 0U;
ep->is_in = 1U;
ep->num = ep_addr & EP_ADDR_MSK;
if (hpcd->Init.dma_enable == 1U)
{
ep->dma_addr = (uint32_t)pBuf;
}
if ((ep_addr & EP_ADDR_MSK) == 0U)
{
(void)USB_EP0StartXfer(hpcd->Instance, ep, (uint8_t)hpcd->Init.dma_enable);
}
else
{
(void)USB_EPStartXfer(hpcd->Instance, ep, (uint8_t)hpcd->Init.dma_enable);
}
return HAL_OK;
}
/**
* @brief Set a STALL condition over an endpoint
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_SetStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if (((uint32_t)ep_addr & EP_ADDR_MSK) > hpcd->Init.dev_endpoints)
{
return HAL_ERROR;
}
if ((0x80U & ep_addr) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr];
ep->is_in = 0U;
}
ep->is_stall = 1U;
ep->num = ep_addr & EP_ADDR_MSK;
__HAL_LOCK(hpcd);
(void)USB_EPSetStall(hpcd->Instance, ep);
if ((ep_addr & EP_ADDR_MSK) == 0U)
{
(void)USB_EP0_OutStart(hpcd->Instance, (uint8_t)hpcd->Init.dma_enable, (uint8_t *)hpcd->Setup);
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Clear a STALL condition over in an endpoint
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_ClrStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if (((uint32_t)ep_addr & 0x0FU) > hpcd->Init.dev_endpoints)
{
return HAL_ERROR;
}
if ((0x80U & ep_addr) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 0U;
}
ep->is_stall = 0U;
ep->num = ep_addr & EP_ADDR_MSK;
__HAL_LOCK(hpcd);
(void)USB_EPClearStall(hpcd->Instance, ep);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Abort an USB EP transaction.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Abort(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
HAL_StatusTypeDef ret;
PCD_EPTypeDef *ep;
if ((0x80U & ep_addr) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
}
/* Stop Xfer */
ret = USB_EPStopXfer(hpcd->Instance, ep);
return ret;
}
/**
* @brief Flush an endpoint
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Flush(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
__HAL_LOCK(hpcd);
if ((ep_addr & 0x80U) == 0x80U)
{
(void)USB_FlushTxFifo(hpcd->Instance, (uint32_t)ep_addr & EP_ADDR_MSK);
}
else
{
(void)USB_FlushRxFifo(hpcd->Instance);
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Activate remote wakeup signalling
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
{
return (USB_ActivateRemoteWakeup(hpcd->Instance));
}
/**
* @brief De-activate remote wakeup signalling.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
{
return (USB_DeActivateRemoteWakeup(hpcd->Instance));
}
/**
* @}
*/
/** @defgroup PCD_Exported_Functions_Group4 Peripheral State functions
* @brief Peripheral State functions
*
@verbatim
===============================================================================
##### Peripheral State functions #####
===============================================================================
[..]
This subsection permits to get in run-time the status of the peripheral
and the data flow.
@endverbatim
* @{
*/
/**
* @brief Return the PCD handle state.
* @param hpcd PCD handle
* @retval HAL state
*/
PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd)
{
return hpcd->State;
}
/**
* @brief Set the USB Device high speed test mode.
* @param hpcd PCD handle
* @param testmode USB Device high speed test mode
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_SetTestMode(PCD_HandleTypeDef *hpcd, uint8_t testmode)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
switch (testmode)
{
case TEST_J:
case TEST_K:
case TEST_SE0_NAK:
case TEST_PACKET:
case TEST_FORCE_EN:
USBx_DEVICE->DCTL |= (uint32_t)testmode << 4;
break;
default:
break;
}
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/** @addtogroup PCD_Private_Functions
* @{
*/
#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
/**
* @brief Check FIFO for the next packet to be loaded.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
USB_OTG_EPTypeDef *ep;
uint32_t len;
uint32_t len32b;
uint32_t fifoemptymsk;
ep = &hpcd->IN_ep[epnum];
if (ep->xfer_count > ep->xfer_len)
{
return HAL_ERROR;
}
len = ep->xfer_len - ep->xfer_count;
if (len > ep->maxpacket)
{
len = ep->maxpacket;
}
len32b = (len + 3U) / 4U;
while (((USBx_INEP(epnum)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) >= len32b) &&
(ep->xfer_count < ep->xfer_len) && (ep->xfer_len != 0U))
{
/* Write the FIFO */
len = ep->xfer_len - ep->xfer_count;
if (len > ep->maxpacket)
{
len = ep->maxpacket;
}
len32b = (len + 3U) / 4U;
(void)USB_WritePacket(USBx, ep->xfer_buff, (uint8_t)epnum, (uint16_t)len,
(uint8_t)hpcd->Init.dma_enable);
ep->xfer_buff += len;
ep->xfer_count += len;
}
if (ep->xfer_len <= ep->xfer_count)
{
fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK));
USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
}
return HAL_OK;
}
/**
* @brief process EP OUT transfer complete interrupt.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_EP_OutXfrComplete_int(PCD_HandleTypeDef *hpcd, uint32_t epnum)
{
USB_OTG_EPTypeDef *ep;
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
uint32_t gSNPSiD = *(__IO uint32_t *)(&USBx->CID + 0x1U);
uint32_t DoepintReg = USBx_OUTEP(epnum)->DOEPINT;
if (hpcd->Init.dma_enable == 1U)
{
if ((DoepintReg & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP) /* Class C */
{
/* StupPktRcvd = 1 this is a setup packet */
if ((gSNPSiD > USB_OTG_CORE_ID_300A) &&
((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX))
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
}
}
else if ((DoepintReg & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR) /* Class E */
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
}
else if ((DoepintReg & (USB_OTG_DOEPINT_STUP | USB_OTG_DOEPINT_OTEPSPR)) == 0U)
{
/* StupPktRcvd = 1 this is a setup packet */
if ((gSNPSiD > USB_OTG_CORE_ID_300A) &&
((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX))
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
}
else
{
ep = &hpcd->OUT_ep[epnum];
/* out data packet received over EP */
ep->xfer_count = ep->xfer_size - (USBx_OUTEP(epnum)->DOEPTSIZ & USB_OTG_DOEPTSIZ_XFRSIZ);
if (epnum == 0U)
{
if (ep->xfer_len == 0U)
{
/* this is ZLP, so prepare EP0 for next setup */
(void)USB_EP0_OutStart(hpcd->Instance, 1U, (uint8_t *)hpcd->Setup);
}
else
{
ep->xfer_buff += ep->xfer_count;
}
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
}
else
{
/* ... */
}
}
else
{
if (gSNPSiD == USB_OTG_CORE_ID_310A)
{
/* StupPktRcvd = 1 this is a setup packet */
if ((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
}
else
{
if ((DoepintReg & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
}
else
{
if ((epnum == 0U) && (hpcd->OUT_ep[epnum].xfer_len == 0U))
{
/* this is ZLP, so prepare EP0 for next setup */
(void)USB_EP0_OutStart(hpcd->Instance, 0U, (uint8_t *)hpcd->Setup);
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
}
return HAL_OK;
}
/**
* @brief process EP OUT setup packet received interrupt.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_EP_OutSetupPacket_int(PCD_HandleTypeDef *hpcd, uint32_t epnum)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
uint32_t gSNPSiD = *(__IO uint32_t *)(&USBx->CID + 0x1U);
uint32_t DoepintReg = USBx_OUTEP(epnum)->DOEPINT;
if ((gSNPSiD > USB_OTG_CORE_ID_300A) &&
((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX))
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
}
/* Inform the upper layer that a setup packet is available */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SetupStageCallback(hpcd);
#else
HAL_PCD_SetupStageCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
if ((gSNPSiD > USB_OTG_CORE_ID_300A) && (hpcd->Init.dma_enable == 1U))
{
(void)USB_EP0_OutStart(hpcd->Instance, 1U, (uint8_t *)hpcd->Setup);
}
return HAL_OK;
}
#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
/**
* @}
*/
#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
#endif /* HAL_PCD_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
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参考引用
https://blog.csdn.net/xiaowanbiao123/article/details/112611264#comments_15318445
https://my.oschina.net/u/2007478/blog/1204300
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