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/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-07-09 QT-one first version
*/
#include "usbd_code.h"
#include "usb_port.h"
#include <rtthread.h>
#include <rtdevice.h>
#include "drv_common.h"
#if 1
#define USB_NO_DATA (-1) /*!< For Device.Transfer.sByteLength */
/* Private function prototypes -----------------------------------------------------------------------------*/
static void _USBDCore_Suspend(USBDCore_TypeDef *pCore);
static void _USBDCore_Reset(USBDCore_TypeDef *pCore);
static void _USBDCore_Resume(USBDCore_TypeDef *pCore);
static void usbd_ept_init(USBDCore_TypeDef *udev);
/*********************************************************************************************************//**
* @brief USB Interrupt Service Routine.
* @param pCore: pointer of USB Device
* @retval None
***********************************************************************************************************/
void usbd_irq_handler(USBDCore_TypeDef *pCore)
{
u32 USBISRFlag = API_USB_GET_INT();
u32 USBEPTISRFlag;
USBD_EPTn_Enum EPTn;
#if (USBDCORE_DEBUG == 1)
u32 USBAddr = HT_USB->DEVAR;
#endif
/*--------------------------------------------------------------------------------------------------------*/
/* USB SOF Interrupt */
/*--------------------------------------------------------------------------------------------------------*/
if (API_USB_IS_SOF_INT(USBISRFlag))
{
usbd_sof_callback(pCore);
API_USB_CLR_SOF_INT();
}
/*--------------------------------------------------------------------------------------------------------*/
/* USB SUSPEND Interrupt */
/*--------------------------------------------------------------------------------------------------------*/
if (API_USB_IS_SUSPEND_INT(USBISRFlag))
{
API_USB_CLR_SUSPEND_INT();
usbd_suspend_callback(pCore);
_USBDCore_Suspend(pCore);
}
/*--------------------------------------------------------------------------------------------------------*/
/* USB RESET Interrupt */
/*--------------------------------------------------------------------------------------------------------*/
if (API_USB_IS_RESET_INT(USBISRFlag))
{
if (API_USB_IS_FRES_INT(USBISRFlag))
{
API_USB_CLR_FRES_INT();
}
else
{
usbd_reset_callback(pCore);
_USBDCore_Reset(pCore);
}
API_USB_CLR_RESET_INT();
}
/*--------------------------------------------------------------------------------------------------------*/
/* USB RESUME Interrupt */
/*--------------------------------------------------------------------------------------------------------*/
if (API_USB_IS_RESUME_INT(USBISRFlag))
{
usbd_resume_callback(pCore);
_USBDCore_Resume(pCore);
API_USB_CLR_RESUME_INT();
}
/*--------------------------------------------------------------------------------------------------------*/
/* USB Endpoint 0 interrupt */
/*--------------------------------------------------------------------------------------------------------*/
if (API_USB_IS_EPTn_INT(USBISRFlag, USBD_EPT0))
{
USBEPTISRFlag = API_USB_EPTn_GET_INT(USBD_EPT0);
/*------------------------------------------------------------------------------------------------------*/
/* Control SETUP Stage */
/*------------------------------------------------------------------------------------------------------*/
if (API_USB_IS_SETUP_INT(USBEPTISRFlag))
{
API_USB_READ_SETUP(&(pCore->Device.Request)); /* Read SETUP Command data from USB Buffer*/
usbd_setup_callback(pCore);
API_USB_CLR_SETUP_INT(); /* Clear SETUP Interrupt */
}
/*------------------------------------------------------------------------------------------------------*/
/* Control Endpoint 0 IN */
/*------------------------------------------------------------------------------------------------------*/
if (API_USB_EPTn_IS_IN_INT(USBEPTISRFlag))
{
usbd_ep0_in_callback(pCore);
API_USB_EPTn_CLR_IN_INT(USBD_EPT0);
}
/*------------------------------------------------------------------------------------------------------*/
/* Control Endpoint 0 OUT */
/*------------------------------------------------------------------------------------------------------*/
if (API_USB_EPTn_IS_OUT_INT(USBEPTISRFlag))
{
/*----------------------------------------------------------------------------------------------------*/
/* Clear interrupt flag before USBDCore_ControlOUT is meaning since USBDCore_ControlOUT clear NAKRX */
/* bit which will cause another interrupt occur. */
/*----------------------------------------------------------------------------------------------------*/
API_USB_EPTn_CLR_OUT_INT(USBD_EPT0);
usbd_ep0_out_callback(pCore);
}
/*------------------------------------------------------------------------------------------------------*/
/* Clear Control Endpoint 0 global interrupt */
/*------------------------------------------------------------------------------------------------------*/
API_USB_CLR_EPTn_INT(USBD_EPT0);
} /* if (API_USB_IS_EP_INT(USBISRFlag, USBD_EPT0)) */
/*--------------------------------------------------------------------------------------------------------*/
/* USB Endpoint n call back function */
/*--------------------------------------------------------------------------------------------------------*/
while ((EPTn = API_USB_GET_EPT_NUM(API_USB_GET_INT())) != USBD_NOEPT)
{
USBEPTISRFlag = API_USB_EPTn_GET_INT((USBD_EPTn_Enum)EPTn);
if (API_USB_EPTn_IS_INT(USBEPTISRFlag))
{
API_USB_EPTn_CLR_INT(EPTn);
API_USB_CLR_EPTn_INT(EPTn);
if (USBEPTISRFlag & IDTXIF)
{
usbd_ep_in_callback(pCore, (USBD_EPTn_Enum)EPTn);
}
else
{
usbd_ep_out_callback(pCore, (USBD_EPTn_Enum)EPTn);
}
}
} /* while ((EPTn = API_USB_GET_EPTn_NUM(API_USB_GET_INT())) != USBD_NOEPT) */
return;
}
/*********************************************************************************************************//**
* @brief USB Core initialization.
* @param pCore: pointer of USB Device
* @retval None
***********************************************************************************************************/
void USBDCore_Init(USBDCore_TypeDef *pCore)
{
pCore->Info.CurrentStatus = USER_USB_STATE_POWERED;
API_USB_INIT(pCore->pDriver);
/* Endpoint information initialisation */
usbd_ept_init(pCore);
return;
}
/*********************************************************************************************************//**
* @brief USB Core Main Routine for application.
* @param pCore: pointer of USB Device
* @retval None
***********************************************************************************************************/
void USBDCore_MainRoutine(USBDCore_TypeDef *pCore)
{
API_USB_POWER_UP(pCore->pDriver, pCore->Info.CurrentFeature.Bits.bSelfPowered);
if (pCore->Info.CurrentStatus == USER_USB_STATE_SUSPENDED)
{
/*------------------------------------------------------------------------------------------------------*/
/* System Low Power call back function */
/*------------------------------------------------------------------------------------------------------*/
if (pCore->Power.CallBack_Suspend.func != NULL)
{
__DBG_USBPrintf("%06ld >LOWPOWER\r\n", ++__DBG_USBCount);
pCore->Power.CallBack_Suspend.func(pCore->Power.CallBack_Suspend.uPara);
__DBG_USBPrintf("%06ld <LOWPOWER\r\n", ++__DBG_USBCount);
}
}
return;
}
/*********************************************************************************************************//**
* @brief USB Suspend
* @param pCore: pointer of USB Device
* @retval None
***********************************************************************************************************/
static void _USBDCore_Suspend(USBDCore_TypeDef *pCore)
{
/*--------------------------------------------------------------------------------------------------------*/
/* When Device has been suspended, Change CurrentStatus as SUSPEND and then USBDCore_PowerHandler will */
/* turn off chip power. */
/*--------------------------------------------------------------------------------------------------------*/
if (pCore->Info.CurrentStatus >= USER_USB_STATE_POWERED)
{
API_USB_POWER_OFF();
pCore->Info.LastStatus = pCore->Info.CurrentStatus;
pCore->Info.CurrentStatus = USER_USB_STATE_SUSPENDED;
}
return;
}
/*********************************************************************************************************//**
* @brief USB Reset
* @param pCore: pointer of USB Device
* @retval None
***********************************************************************************************************/
static void _USBDCore_Reset(USBDCore_TypeDef *pCore)
{
USBD_Driver_TypeDef *pDrv = (USBD_Driver_TypeDef *)pCore->pDriver;
pCore->Device.Transfer.sByteLength = USB_NO_DATA;
pCore->Info.uCurrentConfiguration = 0;
pCore->Info.uCurrentInterface = 0;
pCore->Info.CurrentFeature.Bits.bRemoteWakeup = 0;
pCore->Info.CurrentStatus = USER_USB_STATE_DEFAULT;
pCore->Info.uIsDiscardClearFeature = FALSE;
API_USB_DEINIT();
API_USB_POWER_ON();
/* Endpoint 0 initialization */
API_USB_EPTn_INIT(USBD_EPT0, pCore->pDriver); // To be modify, init from desc
/* Enable USB interrupt */
API_USB_ENABLE_INT(pDrv->uInterruptMask);
return;
}
/*********************************************************************************************************//**
* @brief USB Resume
* @param pCore: pointer of USB Device
* @retval None
***********************************************************************************************************/
static void _USBDCore_Resume(USBDCore_TypeDef *pCore)
{
API_USB_POWER_ON();
pCore->Info.CurrentStatus = pCore->Info.LastStatus;
return;
}
/****************************************************************************************************************************/
void usbd_ep_enable(USBDCore_TypeDef *pCore, uint8_t ept_addr)
{
USBD_Driver_TypeDef *pDrv = (USBD_Driver_TypeDef *)pCore->pDriver;
pDrv->ept[ept_addr & 0x7f].CFGR.bits.EPEN = 1;
API_USB_EPTn_INIT((USBD_EPTn_Enum)(ept_addr & 0x7f), pCore->pDriver); // To be modify, init from desc
}
void usbd_ep_disable(USBDCore_TypeDef *pCore, uint8_t ept_addr)
{
USBD_Driver_TypeDef *pDrv = (USBD_Driver_TypeDef *)pCore->pDriver;
pDrv->ept[ept_addr & 0x7f].CFGR.bits.EPEN = 0;
API_USB_EPTn_INIT((USBD_EPTn_Enum)(ept_addr & 0x7f), pCore->pDriver); // To be modify, init from desc
}
static void usbd_ept_init(USBDCore_TypeDef *udev)
{
uint8_t ept_num = 0;
usb_ept_info *ept_info;
for (ept_num = 0; ept_num < 8; ept_num++)
{
ept_info = &udev->ept_io[ept_num];
ept_info->maxpacket = 64;
ept_info->status = 1;
ept_info->total_len = 0;
ept_info->trans_len = 0;
ept_info->trans_buf = NULL;
}
}
/**
* @brief usb endpoint receive data
* @param udev: to the structure of usbd_core_type
* @param ept_addr: endpoint number
* @param buffer: receive data buffer
* @param len: receive data length
* @retval none
*/
void usbd_ept_recv(USBDCore_TypeDef *udev, uint8_t ept_addr, uint8_t *buffer, uint16_t len)
{
/* get endpoint info struct and register */
usb_ept_info *ept_info = &udev->ept_io[ept_addr & 0x7F];
uint32_t trs_len = 0;
/* set receive data buffer and length */
ept_info->trans_buf = buffer;
ept_info->total_len = len;
ept_info->trans_len = 0;
if (ept_info->total_len > ept_info->maxpacket)
{
trs_len = ept_info->maxpacket;
ept_info->total_len -= trs_len;
}
else
{
trs_len = len;
ept_info->total_len = 0;
}
ept_info->trans_len = trs_len;
/* set rx status valid */
ept_info->status = TRUE;
}
#endif /* BSP_USING_USBD */
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