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micropython/stm/stmusb/usb_core.c

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/**
******************************************************************************
* @file usb_core.c
* @author MCD Application Team
* @version V2.1.0
* @date 19-March-2012
* @brief USB-OTG Core Layer
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usb_core.h"
#include "usb_bsp.h"
/** @addtogroup USB_OTG_DRIVER
* @{
*/
/** @defgroup USB_CORE
* @brief This file includes the USB-OTG Core Layer
* @{
*/
/** @defgroup USB_CORE_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USB_CORE_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USB_CORE_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USB_CORE_Private_Variables
* @{
*/
/**
* @}
*/
/** @defgroup USB_CORE_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup USB_CORE_Private_Functions
* @{
*/
/**
* @brief USB_OTG_EnableCommonInt
* Initializes the commmon interrupts, used in both device and modes
* @param pdev : Selected device
* @retval None
*/
static void USB_OTG_EnableCommonInt(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_GINTMSK_TypeDef int_mask;
int_mask.d32 = 0;
/* Clear any pending USB_OTG Interrupts */
#ifndef USE_OTG_MODE
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GOTGINT, 0xFFFFFFFF);
#endif
/* Clear any pending interrupts */
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTSTS, 0xBFFFFFFF);
/* Enable the interrupts in the INTMSK */
int_mask.b.wkupintr = 1;
int_mask.b.usbsuspend = 1;
#ifdef USE_OTG_MODE
int_mask.b.otgintr = 1;
int_mask.b.sessreqintr = 1;
int_mask.b.conidstschng = 1;
#endif
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTMSK, int_mask.d32);
}
/**
* @brief USB_OTG_CoreReset : Soft reset of the core
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
static USB_OTG_STS USB_OTG_CoreReset(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
__IO USB_OTG_GRSTCTL_TypeDef greset;
uint32_t count = 0;
greset.d32 = 0;
/* Wait for AHB master IDLE state. */
do
{
USB_OTG_BSP_uDelay(3);
greset.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GRSTCTL);
if (++count > 200000)
{
return USB_OTG_OK;
}
}
while (greset.b.ahbidle == 0);
/* Core Soft Reset */
count = 0;
greset.b.csftrst = 1;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRSTCTL, greset.d32 );
do
{
greset.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GRSTCTL);
if (++count > 200000)
{
break;
}
}
while (greset.b.csftrst == 1);
/* Wait for 3 PHY Clocks*/
USB_OTG_BSP_uDelay(3);
return status;
}
/**
* @brief USB_OTG_WritePacket : Writes a packet into the Tx FIFO associated
* with the EP
* @param pdev : Selected device
* @param src : source pointer
* @param ch_ep_num : end point number
* @param bytes : No. of bytes
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_WritePacket(USB_OTG_CORE_HANDLE *pdev,
uint8_t *src,
uint8_t ch_ep_num,
uint16_t len)
{
USB_OTG_STS status = USB_OTG_OK;
if (pdev->cfg.dma_enable == 0)
{
uint32_t count32b= 0 , i= 0;
__IO uint32_t *fifo;
count32b = (len + 3) / 4;
fifo = pdev->regs.DFIFO[ch_ep_num];
for (i = 0; i < count32b; i++, src+=4)
{
USB_OTG_WRITE_REG32( fifo, *((__packed uint32_t *)src) );
}
}
return status;
}
/**
* @brief USB_OTG_ReadPacket : Reads a packet from the Rx FIFO
* @param pdev : Selected device
* @param dest : Destination Pointer
* @param bytes : No. of bytes
* @retval None
*/
void *USB_OTG_ReadPacket(USB_OTG_CORE_HANDLE *pdev,
uint8_t *dest,
uint16_t len)
{
uint32_t i=0;
uint32_t count32b = (len + 3) / 4;
__IO uint32_t *fifo = pdev->regs.DFIFO[0];
for ( i = 0; i < count32b; i++, dest += 4 )
{
*(__packed uint32_t *)dest = USB_OTG_READ_REG32(fifo);
}
return ((void *)dest);
}
/**
* @brief USB_OTG_SelectCore
* Initialize core registers address.
* @param pdev : Selected device
* @param coreID : USB OTG Core ID
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_SelectCore(USB_OTG_CORE_HANDLE *pdev,
USB_OTG_CORE_ID_TypeDef coreID)
{
uint32_t i , baseAddress = 0;
USB_OTG_STS status = USB_OTG_OK;
pdev->cfg.dma_enable = 0;
/* at startup the core is in FS mode */
pdev->cfg.speed = USB_OTG_SPEED_FULL;
pdev->cfg.mps = USB_OTG_FS_MAX_PACKET_SIZE ;
/* initialize device cfg following its address */
if (coreID == USB_OTG_FS_CORE_ID)
{
baseAddress = USB_OTG_FS_BASE_ADDR;
pdev->cfg.coreID = USB_OTG_FS_CORE_ID;
pdev->cfg.host_channels = 8 ;
pdev->cfg.dev_endpoints = 4 ;
pdev->cfg.TotalFifoSize = 320; /* in 32-bits */
pdev->cfg.phy_itface = USB_OTG_EMBEDDED_PHY;
#ifdef USB_OTG_FS_SOF_OUTPUT_ENABLED
pdev->cfg.Sof_output = 1;
#endif
#ifdef USB_OTG_FS_LOW_PWR_MGMT_SUPPORT
pdev->cfg.low_power = 1;
#endif
}
else if (coreID == USB_OTG_HS_CORE_ID)
{
baseAddress = USB_OTG_HS_BASE_ADDR;
pdev->cfg.coreID = USB_OTG_HS_CORE_ID;
pdev->cfg.host_channels = 12 ;
pdev->cfg.dev_endpoints = 6 ;
pdev->cfg.TotalFifoSize = 1280;/* in 32-bits */
#ifdef USB_OTG_ULPI_PHY_ENABLED
pdev->cfg.phy_itface = USB_OTG_ULPI_PHY;
#else
#ifdef USB_OTG_EMBEDDED_PHY_ENABLED
pdev->cfg.phy_itface = USB_OTG_EMBEDDED_PHY;
#endif
#endif
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
pdev->cfg.dma_enable = 1;
#endif
#ifdef USB_OTG_HS_SOF_OUTPUT_ENABLED
pdev->cfg.Sof_output = 1;
#endif
#ifdef USB_OTG_HS_LOW_PWR_MGMT_SUPPORT
pdev->cfg.low_power = 1;
#endif
}
pdev->regs.GREGS = (USB_OTG_GREGS *)(baseAddress + \
USB_OTG_CORE_GLOBAL_REGS_OFFSET);
pdev->regs.DREGS = (USB_OTG_DREGS *) (baseAddress + \
USB_OTG_DEV_GLOBAL_REG_OFFSET);
for (i = 0; i < pdev->cfg.dev_endpoints; i++)
{
pdev->regs.INEP_REGS[i] = (USB_OTG_INEPREGS *) \
(baseAddress + USB_OTG_DEV_IN_EP_REG_OFFSET + \
(i * USB_OTG_EP_REG_OFFSET));
pdev->regs.OUTEP_REGS[i] = (USB_OTG_OUTEPREGS *) \
(baseAddress + USB_OTG_DEV_OUT_EP_REG_OFFSET + \
(i * USB_OTG_EP_REG_OFFSET));
}
pdev->regs.HREGS = (USB_OTG_HREGS *)(baseAddress + \
USB_OTG_HOST_GLOBAL_REG_OFFSET);
pdev->regs.HPRT0 = (uint32_t *)(baseAddress + USB_OTG_HOST_PORT_REGS_OFFSET);
for (i = 0; i < pdev->cfg.host_channels; i++)
{
pdev->regs.HC_REGS[i] = (USB_OTG_HC_REGS *)(baseAddress + \
USB_OTG_HOST_CHAN_REGS_OFFSET + \
(i * USB_OTG_CHAN_REGS_OFFSET));
}
for (i = 0; i < pdev->cfg.host_channels; i++)
{
pdev->regs.DFIFO[i] = (uint32_t *)(baseAddress + USB_OTG_DATA_FIFO_OFFSET +\
(i * USB_OTG_DATA_FIFO_SIZE));
}
pdev->regs.PCGCCTL = (uint32_t *)(baseAddress + USB_OTG_PCGCCTL_OFFSET);
return status;
}
/**
* @brief USB_OTG_CoreInit
* Initializes the USB_OTG controller registers and prepares the core
* device mode or host mode operation.
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_CoreInit(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_GUSBCFG_TypeDef usbcfg;
USB_OTG_GCCFG_TypeDef gccfg;
USB_OTG_GAHBCFG_TypeDef ahbcfg;
usbcfg.d32 = 0;
gccfg.d32 = 0;
ahbcfg.d32 = 0;
if (pdev->cfg.phy_itface == USB_OTG_ULPI_PHY)
{
gccfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GCCFG);
gccfg.b.pwdn = 0;
if (pdev->cfg.Sof_output)
{
gccfg.b.sofouten = 1;
}
USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GCCFG, gccfg.d32);
/* Init The ULPI Interface */
usbcfg.d32 = 0;
usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
usbcfg.b.physel = 0; /* HS Interface */
#ifdef USB_OTG_INTERNAL_VBUS_ENABLED
usbcfg.b.ulpi_ext_vbus_drv = 0; /* Use internal VBUS */
#else
#ifdef USB_OTG_EXTERNAL_VBUS_ENABLED
usbcfg.b.ulpi_ext_vbus_drv = 1; /* Use external VBUS */
#endif
#endif
usbcfg.b.term_sel_dl_pulse = 0; /* Data line pulsing using utmi_txvalid */
usbcfg.b.ulpi_fsls = 0;
usbcfg.b.ulpi_clk_sus_m = 0;
USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
/* Reset after a PHY select */
USB_OTG_CoreReset(pdev);
if(pdev->cfg.dma_enable == 1)
{
ahbcfg.b.hburstlen = 5; /* 64 x 32-bits*/
ahbcfg.b.dmaenable = 1;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GAHBCFG, ahbcfg.d32);
}
}
else /* FS interface (embedded Phy) */
{
usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);;
usbcfg.b.physel = 1; /* FS Interface */
USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
/* Reset after a PHY select and set Host mode */
USB_OTG_CoreReset(pdev);
/* Deactivate the power down*/
gccfg.d32 = 0;
gccfg.b.pwdn = 1;
gccfg.b.vbussensingA = 1 ;
gccfg.b.vbussensingB = 1 ;
#ifndef VBUS_SENSING_ENABLED
gccfg.b.disablevbussensing = 1;
#endif
if(pdev->cfg.Sof_output)
{
gccfg.b.sofouten = 1;
}
USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GCCFG, gccfg.d32);
USB_OTG_BSP_mDelay(20);
}
/* case the HS core is working in FS mode */
if(pdev->cfg.dma_enable == 1)
{
ahbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GAHBCFG);
ahbcfg.b.hburstlen = 5; /* 64 x 32-bits*/
ahbcfg.b.dmaenable = 1;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GAHBCFG, ahbcfg.d32);
}
/* initialize OTG features */
#ifdef USE_OTG_MODE
usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
usbcfg.b.hnpcap = 1;
usbcfg.b.srpcap = 1;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
USB_OTG_EnableCommonInt(pdev);
#endif
return status;
}
/**
* @brief USB_OTG_EnableGlobalInt
* Enables the controller's Global Int in the AHB Config reg
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EnableGlobalInt(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_GAHBCFG_TypeDef ahbcfg;
ahbcfg.d32 = 0;
ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */
USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GAHBCFG, 0, ahbcfg.d32);
return status;
}
/**
* @brief USB_OTG_DisableGlobalInt
* Enables the controller's Global Int in the AHB Config reg
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_DisableGlobalInt(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_GAHBCFG_TypeDef ahbcfg;
ahbcfg.d32 = 0;
ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */
USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GAHBCFG, ahbcfg.d32, 0);
return status;
}
/**
* @brief USB_OTG_FlushTxFifo : Flush a Tx FIFO
* @param pdev : Selected device
* @param num : FO num
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_FlushTxFifo (USB_OTG_CORE_HANDLE *pdev , uint32_t num )
{
USB_OTG_STS status = USB_OTG_OK;
__IO USB_OTG_GRSTCTL_TypeDef greset;
uint32_t count = 0;
greset.d32 = 0;
greset.b.txfflsh = 1;
greset.b.txfnum = num;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GRSTCTL, greset.d32 );
do
{
greset.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GRSTCTL);
if (++count > 200000)
{
break;
}
}
while (greset.b.txfflsh == 1);
/* Wait for 3 PHY Clocks*/
USB_OTG_BSP_uDelay(3);
return status;
}
/**
* @brief USB_OTG_FlushRxFifo : Flush a Rx FIFO
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_FlushRxFifo( USB_OTG_CORE_HANDLE *pdev )
{
USB_OTG_STS status = USB_OTG_OK;
__IO USB_OTG_GRSTCTL_TypeDef greset;
uint32_t count = 0;
greset.d32 = 0;
greset.b.rxfflsh = 1;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GRSTCTL, greset.d32 );
do
{
greset.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GRSTCTL);
if (++count > 200000)
{
break;
}
}
while (greset.b.rxfflsh == 1);
/* Wait for 3 PHY Clocks*/
USB_OTG_BSP_uDelay(3);
return status;
}
/**
* @brief USB_OTG_SetCurrentMode : Set ID line
* @param pdev : Selected device
* @param mode : (Host/device)
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_SetCurrentMode(USB_OTG_CORE_HANDLE *pdev , uint8_t mode)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_GUSBCFG_TypeDef usbcfg;
usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
usbcfg.b.force_host = 0;
usbcfg.b.force_dev = 0;
if ( mode == HOST_MODE)
{
usbcfg.b.force_host = 1;
}
else if ( mode == DEVICE_MODE)
{
usbcfg.b.force_dev = 1;
}
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
USB_OTG_BSP_mDelay(50);
return status;
}
/**
* @brief USB_OTG_GetMode : Get current mode
* @param pdev : Selected device
* @retval current mode
*/
uint32_t USB_OTG_GetMode(USB_OTG_CORE_HANDLE *pdev)
{
return (USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTSTS ) & 0x1);
}
/**
* @brief USB_OTG_IsDeviceMode : Check if it is device mode
* @param pdev : Selected device
* @retval num_in_ep
*/
uint8_t USB_OTG_IsDeviceMode(USB_OTG_CORE_HANDLE *pdev)
{
return (USB_OTG_GetMode(pdev) != HOST_MODE);
}
/**
* @brief USB_OTG_IsHostMode : Check if it is host mode
* @param pdev : Selected device
* @retval num_in_ep
*/
uint8_t USB_OTG_IsHostMode(USB_OTG_CORE_HANDLE *pdev)
{
return (USB_OTG_GetMode(pdev) == HOST_MODE);
}
/**
* @brief USB_OTG_ReadCoreItr : returns the Core Interrupt register
* @param pdev : Selected device
* @retval Status
*/
uint32_t USB_OTG_ReadCoreItr(USB_OTG_CORE_HANDLE *pdev)
{
uint32_t v = 0;
v = USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTSTS);
v &= USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTMSK);
return v;
}
/**
* @brief USB_OTG_ReadOtgItr : returns the USB_OTG Interrupt register
* @param pdev : Selected device
* @retval Status
*/
uint32_t USB_OTG_ReadOtgItr (USB_OTG_CORE_HANDLE *pdev)
{
return (USB_OTG_READ_REG32 (&pdev->regs.GREGS->GOTGINT));
}
#ifdef USE_HOST_MODE
/**
* @brief USB_OTG_CoreInitHost : Initializes USB_OTG controller for host mode
* @param pdev : Selected device
* @retval status
*/
USB_OTG_STS USB_OTG_CoreInitHost(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_FSIZ_TypeDef nptxfifosize;
USB_OTG_FSIZ_TypeDef ptxfifosize;
USB_OTG_HCFG_TypeDef hcfg;
#ifdef USE_OTG_MODE
USB_OTG_GOTGCTL_TypeDef gotgctl;
#endif
uint32_t i = 0;
nptxfifosize.d32 = 0;
ptxfifosize.d32 = 0;
#ifdef USE_OTG_MODE
gotgctl.d32 = 0;
#endif
hcfg.d32 = 0;
/* configure charge pump IO */
USB_OTG_BSP_ConfigVBUS(pdev);
/* Restart the Phy Clock */
USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, 0);
/* Initialize Host Configuration Register */
if (pdev->cfg.phy_itface == USB_OTG_ULPI_PHY)
{
USB_OTG_InitFSLSPClkSel(pdev , HCFG_30_60_MHZ);
}
else
{
USB_OTG_InitFSLSPClkSel(pdev , HCFG_48_MHZ);
}
USB_OTG_ResetPort(pdev);
hcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HCFG);
hcfg.b.fslssupp = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HCFG, hcfg.d32);
/* Configure data FIFO sizes */
/* Rx FIFO */
#ifdef USB_OTG_FS_CORE
if(pdev->cfg.coreID == USB_OTG_FS_CORE_ID)
{
/* set Rx FIFO size */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_FS_SIZE);
nptxfifosize.b.startaddr = RX_FIFO_FS_SIZE;
nptxfifosize.b.depth = TXH_NP_FS_FIFOSIZ;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32);
ptxfifosize.b.startaddr = RX_FIFO_FS_SIZE + TXH_NP_FS_FIFOSIZ;
ptxfifosize.b.depth = TXH_P_FS_FIFOSIZ;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->HPTXFSIZ, ptxfifosize.d32);
}
#endif
#ifdef USB_OTG_HS_CORE
if (pdev->cfg.coreID == USB_OTG_HS_CORE_ID)
{
/* set Rx FIFO size */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_HS_SIZE);
nptxfifosize.b.startaddr = RX_FIFO_HS_SIZE;
nptxfifosize.b.depth = TXH_NP_HS_FIFOSIZ;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32);
ptxfifosize.b.startaddr = RX_FIFO_HS_SIZE + TXH_NP_HS_FIFOSIZ;
ptxfifosize.b.depth = TXH_P_HS_FIFOSIZ;
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->HPTXFSIZ, ptxfifosize.d32);
}
#endif
#ifdef USE_OTG_MODE
/* Clear Host Set HNP Enable in the USB_OTG Control Register */
gotgctl.b.hstsethnpen = 1;
USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GOTGCTL, gotgctl.d32, 0);
#endif
/* Make sure the FIFOs are flushed. */
USB_OTG_FlushTxFifo(pdev, 0x10 ); /* all Tx FIFOs */
USB_OTG_FlushRxFifo(pdev);
/* Clear all pending HC Interrupts */
for (i = 0; i < pdev->cfg.host_channels; i++)
{
USB_OTG_WRITE_REG32( &pdev->regs.HC_REGS[i]->HCINT, 0xFFFFFFFF );
USB_OTG_WRITE_REG32( &pdev->regs.HC_REGS[i]->HCINTMSK, 0 );
}
#ifndef USE_OTG_MODE
USB_OTG_DriveVbus(pdev, 1);
#endif
USB_OTG_EnableHostInt(pdev);
return status;
}
/**
* @brief USB_OTG_IsEvenFrame
* This function returns the frame number for sof packet
* @param pdev : Selected device
* @retval Frame number
*/
uint8_t USB_OTG_IsEvenFrame (USB_OTG_CORE_HANDLE *pdev)
{
return !(USB_OTG_READ_REG32(&pdev->regs.HREGS->HFNUM) & 0x1);
}
/**
* @brief USB_OTG_DriveVbus : set/reset vbus
* @param pdev : Selected device
* @param state : VBUS state
* @retval None
*/
void USB_OTG_DriveVbus (USB_OTG_CORE_HANDLE *pdev, uint8_t state)
{
USB_OTG_HPRT0_TypeDef hprt0;
hprt0.d32 = 0;
/* enable disable the external charge pump */
USB_OTG_BSP_DriveVBUS(pdev, state);
/* Turn on the Host port power. */
hprt0.d32 = USB_OTG_ReadHPRT0(pdev);
if ((hprt0.b.prtpwr == 0 ) && (state == 1 ))
{
hprt0.b.prtpwr = 1;
USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
}
if ((hprt0.b.prtpwr == 1 ) && (state == 0 ))
{
hprt0.b.prtpwr = 0;
USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
}
USB_OTG_BSP_mDelay(200);
}
/**
* @brief USB_OTG_EnableHostInt: Enables the Host mode interrupts
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EnableHostInt(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_GINTMSK_TypeDef intmsk;
intmsk.d32 = 0;
/* Disable all interrupts. */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTMSK, 0);
/* Clear any pending interrupts. */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, 0xFFFFFFFF);
/* Enable the common interrupts */
USB_OTG_EnableCommonInt(pdev);
if (pdev->cfg.dma_enable == 0)
{
intmsk.b.rxstsqlvl = 1;
}
intmsk.b.portintr = 1;
intmsk.b.hcintr = 1;
intmsk.b.disconnect = 1;
intmsk.b.sofintr = 1;
intmsk.b.incomplisoout = 1;
USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GINTMSK, intmsk.d32, intmsk.d32);
return status;
}
/**
* @brief USB_OTG_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the
* HCFG register on the PHY type
* @param pdev : Selected device
* @param freq : clock frequency
* @retval None
*/
void USB_OTG_InitFSLSPClkSel(USB_OTG_CORE_HANDLE *pdev , uint8_t freq)
{
USB_OTG_HCFG_TypeDef hcfg;
hcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HCFG);
hcfg.b.fslspclksel = freq;
USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HCFG, hcfg.d32);
}
/**
* @brief USB_OTG_ReadHPRT0 : Reads HPRT0 to modify later
* @param pdev : Selected device
* @retval HPRT0 value
*/
uint32_t USB_OTG_ReadHPRT0(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_HPRT0_TypeDef hprt0;
hprt0.d32 = USB_OTG_READ_REG32(pdev->regs.HPRT0);
hprt0.b.prtena = 0;
hprt0.b.prtconndet = 0;
hprt0.b.prtenchng = 0;
hprt0.b.prtovrcurrchng = 0;
return hprt0.d32;
}
/**
* @brief USB_OTG_ReadHostAllChannels_intr : Register PCD Callbacks
* @param pdev : Selected device
* @retval Status
*/
uint32_t USB_OTG_ReadHostAllChannels_intr (USB_OTG_CORE_HANDLE *pdev)
{
return (USB_OTG_READ_REG32 (&pdev->regs.HREGS->HAINT));
}
/**
* @brief USB_OTG_ResetPort : Reset Host Port
* @param pdev : Selected device
* @retval status
* @note : (1)The application must wait at least 10 ms (+ 10 ms security)
* before clearing the reset bit.
*/
uint32_t USB_OTG_ResetPort(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_HPRT0_TypeDef hprt0;
hprt0.d32 = USB_OTG_ReadHPRT0(pdev);
hprt0.b.prtrst = 1;
USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
USB_OTG_BSP_mDelay (10); /* See Note #1 */
hprt0.b.prtrst = 0;
USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
USB_OTG_BSP_mDelay (20);
return 1;
}
/**
* @brief USB_OTG_HC_Init : Prepares a host channel for transferring packets
* @param pdev : Selected device
* @param hc_num : channel number
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_HC_Init(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
{
USB_OTG_STS status = USB_OTG_OK;
uint32_t intr_enable = 0;
USB_OTG_HCINTMSK_TypeDef hcintmsk;
USB_OTG_GINTMSK_TypeDef gintmsk;
USB_OTG_HCCHAR_TypeDef hcchar;
USB_OTG_HCINTn_TypeDef hcint;
gintmsk.d32 = 0;
hcintmsk.d32 = 0;
hcchar.d32 = 0;
/* Clear old interrupt conditions for this host channel. */
hcint.d32 = 0xFFFFFFFF;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINT, hcint.d32);
/* Enable channel interrupts required for this transfer. */
hcintmsk.d32 = 0;
if (pdev->cfg.dma_enable == 1)
{
hcintmsk.b.ahberr = 1;
}
switch (pdev->host.hc[hc_num].ep_type)
{
case EP_TYPE_CTRL:
case EP_TYPE_BULK:
hcintmsk.b.xfercompl = 1;
hcintmsk.b.stall = 1;
hcintmsk.b.xacterr = 1;
hcintmsk.b.datatglerr = 1;
hcintmsk.b.nak = 1;
if (pdev->host.hc[hc_num].ep_is_in)
{
hcintmsk.b.bblerr = 1;
}
else
{
hcintmsk.b.nyet = 1;
if (pdev->host.hc[hc_num].do_ping)
{
hcintmsk.b.ack = 1;
}
}
break;
case EP_TYPE_INTR:
hcintmsk.b.xfercompl = 1;
hcintmsk.b.nak = 1;
hcintmsk.b.stall = 1;
hcintmsk.b.xacterr = 1;
hcintmsk.b.datatglerr = 1;
hcintmsk.b.frmovrun = 1;
if (pdev->host.hc[hc_num].ep_is_in)
{
hcintmsk.b.bblerr = 1;
}
break;
case EP_TYPE_ISOC:
hcintmsk.b.xfercompl = 1;
hcintmsk.b.frmovrun = 1;
hcintmsk.b.ack = 1;
if (pdev->host.hc[hc_num].ep_is_in)
{
hcintmsk.b.xacterr = 1;
hcintmsk.b.bblerr = 1;
}
break;
}
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK, hcintmsk.d32);
/* Enable the top level host channel interrupt. */
intr_enable = (1 << hc_num);
USB_OTG_MODIFY_REG32(&pdev->regs.HREGS->HAINTMSK, 0, intr_enable);
/* Make sure host channel interrupts are enabled. */
gintmsk.b.hcintr = 1;
USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GINTMSK, 0, gintmsk.d32);
/* Program the HCCHAR register */
hcchar.d32 = 0;
hcchar.b.devaddr = pdev->host.hc[hc_num].dev_addr;
hcchar.b.epnum = pdev->host.hc[hc_num].ep_num;
hcchar.b.epdir = pdev->host.hc[hc_num].ep_is_in;
hcchar.b.lspddev = (pdev->host.hc[hc_num].speed == HPRT0_PRTSPD_LOW_SPEED);
hcchar.b.eptype = pdev->host.hc[hc_num].ep_type;
hcchar.b.mps = pdev->host.hc[hc_num].max_packet;
if (pdev->host.hc[hc_num].ep_type == HCCHAR_INTR)
{
hcchar.b.oddfrm = 1;
}
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
return status;
}
/**
* @brief USB_OTG_HC_StartXfer : Start transfer
* @param pdev : Selected device
* @param hc_num : channel number
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_HC_StartXfer(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_HCCHAR_TypeDef hcchar;
USB_OTG_HCTSIZn_TypeDef hctsiz;
USB_OTG_HNPTXSTS_TypeDef hnptxsts;
USB_OTG_HPTXSTS_TypeDef hptxsts;
USB_OTG_GINTMSK_TypeDef intmsk;
uint16_t len_words = 0;
uint16_t num_packets;
uint16_t max_hc_pkt_count;
max_hc_pkt_count = 256;
hctsiz.d32 = 0;
hcchar.d32 = 0;
intmsk.d32 = 0;
/* Compute the expected number of packets associated to the transfer */
if (pdev->host.hc[hc_num].xfer_len > 0)
{
num_packets = (pdev->host.hc[hc_num].xfer_len + \
pdev->host.hc[hc_num].max_packet - 1) / pdev->host.hc[hc_num].max_packet;
if (num_packets > max_hc_pkt_count)
{
num_packets = max_hc_pkt_count;
pdev->host.hc[hc_num].xfer_len = num_packets * \
pdev->host.hc[hc_num].max_packet;
}
}
else
{
num_packets = 1;
}
if (pdev->host.hc[hc_num].ep_is_in)
{
pdev->host.hc[hc_num].xfer_len = num_packets * \
pdev->host.hc[hc_num].max_packet;
}
/* Initialize the HCTSIZn register */
hctsiz.b.xfersize = pdev->host.hc[hc_num].xfer_len;
hctsiz.b.pktcnt = num_packets;
hctsiz.b.pid = pdev->host.hc[hc_num].data_pid;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCTSIZ, hctsiz.d32);
if (pdev->cfg.dma_enable == 1)
{
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCDMA, (unsigned int)pdev->host.hc[hc_num].xfer_buff);
}
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR);
hcchar.b.oddfrm = USB_OTG_IsEvenFrame(pdev);
/* Set host channel enable */
hcchar.b.chen = 1;
hcchar.b.chdis = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
if (pdev->cfg.dma_enable == 0) /* Slave mode */
{
if((pdev->host.hc[hc_num].ep_is_in == 0) &&
(pdev->host.hc[hc_num].xfer_len > 0))
{
switch(pdev->host.hc[hc_num].ep_type)
{
/* Non periodic transfer */
case EP_TYPE_CTRL:
case EP_TYPE_BULK:
hnptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS);
len_words = (pdev->host.hc[hc_num].xfer_len + 3) / 4;
/* check if there is enough space in FIFO space */
if(len_words > hnptxsts.b.nptxfspcavail)
{
/* need to process data in nptxfempty interrupt */
intmsk.b.nptxfempty = 1;
USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, 0, intmsk.d32);
}
break;
/* Periodic transfer */
case EP_TYPE_INTR:
case EP_TYPE_ISOC:
hptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HPTXSTS);
len_words = (pdev->host.hc[hc_num].xfer_len + 3) / 4;
/* check if there is enough space in FIFO space */
if(len_words > hptxsts.b.ptxfspcavail) /* split the transfer */
{
/* need to process data in ptxfempty interrupt */
intmsk.b.ptxfempty = 1;
USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, 0, intmsk.d32);
}
break;
default:
break;
}
/* Write packet into the Tx FIFO. */
USB_OTG_WritePacket(pdev,
pdev->host.hc[hc_num].xfer_buff ,
hc_num, pdev->host.hc[hc_num].xfer_len);
}
}
return status;
}
/**
* @brief USB_OTG_HC_Halt : Halt channel
* @param pdev : Selected device
* @param hc_num : channel number
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_HC_Halt(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_HNPTXSTS_TypeDef nptxsts;
USB_OTG_HPTXSTS_TypeDef hptxsts;
USB_OTG_HCCHAR_TypeDef hcchar;
nptxsts.d32 = 0;
hptxsts.d32 = 0;
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR);
hcchar.b.chen = 1;
hcchar.b.chdis = 1;
/* Check for space in the request queue to issue the halt. */
if (hcchar.b.eptype == HCCHAR_CTRL || hcchar.b.eptype == HCCHAR_BULK)
{
nptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS);
if (nptxsts.b.nptxqspcavail == 0)
{
hcchar.b.chen = 0;
}
}
else
{
hptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HPTXSTS);
if (hptxsts.b.ptxqspcavail == 0)
{
hcchar.b.chen = 0;
}
}
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
return status;
}
/**
* @brief Issue a ping token
* @param None
* @retval : None
*/
USB_OTG_STS USB_OTG_HC_DoPing(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_HCCHAR_TypeDef hcchar;
USB_OTG_HCTSIZn_TypeDef hctsiz;
hctsiz.d32 = 0;
hctsiz.b.dopng = 1;
hctsiz.b.pktcnt = 1;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCTSIZ, hctsiz.d32);
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR);
hcchar.b.chen = 1;
hcchar.b.chdis = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
return status;
}
/**
* @brief Stop the device and clean up fifo's
* @param None
* @retval : None
*/
void USB_OTG_StopHost(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_HCCHAR_TypeDef hcchar;
uint32_t i;
USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HAINTMSK , 0);
USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HAINT, 0xFFFFFFFF);
/* Flush out any leftover queued requests. */
for (i = 0; i < pdev->cfg.host_channels; i++)
{
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[i]->HCCHAR);
hcchar.b.chen = 0;
hcchar.b.chdis = 1;
hcchar.b.epdir = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[i]->HCCHAR, hcchar.d32);
}
/* Flush the FIFO */
USB_OTG_FlushRxFifo(pdev);
USB_OTG_FlushTxFifo(pdev , 0x10 );
}
#endif
#ifdef USE_DEVICE_MODE
/* PCD Core Layer */
/**
* @brief USB_OTG_InitDevSpeed :Initializes the DevSpd field of DCFG register
* depending the PHY type and the enumeration speed of the device.
* @param pdev : Selected device
* @retval : None
*/
void USB_OTG_InitDevSpeed(USB_OTG_CORE_HANDLE *pdev , uint8_t speed)
{
USB_OTG_DCFG_TypeDef dcfg;
dcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCFG);
dcfg.b.devspd = speed;
USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCFG, dcfg.d32);
}
/**
* @brief USB_OTG_CoreInitDev : Initializes the USB_OTG controller registers
* for device mode
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_CoreInitDev (USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
uint32_t i;
USB_OTG_DCFG_TypeDef dcfg;
USB_OTG_FSIZ_TypeDef nptxfifosize;
USB_OTG_FSIZ_TypeDef txfifosize;
USB_OTG_DIEPMSK_TypeDef msk;
USB_OTG_DTHRCTL_TypeDef dthrctl;
depctl.d32 = 0;
dcfg.d32 = 0;
nptxfifosize.d32 = 0;
txfifosize.d32 = 0;
msk.d32 = 0;
/* Restart the Phy Clock */
USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, 0);
/* Device configuration register */
dcfg.d32 = USB_OTG_READ_REG32( &pdev->regs.DREGS->DCFG);
dcfg.b.perfrint = DCFG_FRAME_INTERVAL_80;
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DCFG, dcfg.d32 );
#ifdef USB_OTG_FS_CORE
if(pdev->cfg.coreID == USB_OTG_FS_CORE_ID )
{
/* Set Full speed phy */
USB_OTG_InitDevSpeed (pdev , USB_OTG_SPEED_PARAM_FULL);
/* set Rx FIFO size */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_FS_SIZE);
/* EP0 TX*/
nptxfifosize.b.depth = TX0_FIFO_FS_SIZE;
nptxfifosize.b.startaddr = RX_FIFO_FS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32 );
/* EP1 TX*/
txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth;
txfifosize.b.depth = TX1_FIFO_FS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[0], txfifosize.d32 );
/* EP2 TX*/
txfifosize.b.startaddr += txfifosize.b.depth;
txfifosize.b.depth = TX2_FIFO_FS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[1], txfifosize.d32 );
/* EP3 TX*/
txfifosize.b.startaddr += txfifosize.b.depth;
txfifosize.b.depth = TX3_FIFO_FS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[2], txfifosize.d32 );
}
#endif
#ifdef USB_OTG_HS_CORE
if(pdev->cfg.coreID == USB_OTG_HS_CORE_ID )
{
/* Set High speed phy */
if(pdev->cfg.phy_itface == USB_OTG_ULPI_PHY)
{
USB_OTG_InitDevSpeed (pdev , USB_OTG_SPEED_PARAM_HIGH);
}
else /* set High speed phy in Full speed mode */
{
USB_OTG_InitDevSpeed (pdev , USB_OTG_SPEED_PARAM_HIGH_IN_FULL);
}
/* set Rx FIFO size */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_HS_SIZE);
/* EP0 TX*/
nptxfifosize.b.depth = TX0_FIFO_HS_SIZE;
nptxfifosize.b.startaddr = RX_FIFO_HS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32 );
/* EP1 TX*/
txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth;
txfifosize.b.depth = TX1_FIFO_HS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[0], txfifosize.d32 );
/* EP2 TX*/
txfifosize.b.startaddr += txfifosize.b.depth;
txfifosize.b.depth = TX2_FIFO_HS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[1], txfifosize.d32 );
/* EP3 TX*/
txfifosize.b.startaddr += txfifosize.b.depth;
txfifosize.b.depth = TX3_FIFO_HS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[2], txfifosize.d32 );
/* EP4 TX*/
txfifosize.b.startaddr += txfifosize.b.depth;
txfifosize.b.depth = TX4_FIFO_HS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[3], txfifosize.d32 );
/* EP5 TX*/
txfifosize.b.startaddr += txfifosize.b.depth;
txfifosize.b.depth = TX5_FIFO_HS_SIZE;
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[4], txfifosize.d32 );
}
#endif
/* Flush the FIFOs */
USB_OTG_FlushTxFifo(pdev , 0x10); /* all Tx FIFOs */
USB_OTG_FlushRxFifo(pdev);
/* Clear all pending Device Interrupts */
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DIEPMSK, 0 );
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DOEPMSK, 0 );
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINT, 0xFFFFFFFF );
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINTMSK, 0 );
for (i = 0; i < pdev->cfg.dev_endpoints; i++)
{
depctl.d32 = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[i]->DIEPCTL);
if (depctl.b.epena)
{
depctl.d32 = 0;
depctl.b.epdis = 1;
depctl.b.snak = 1;
}
else
{
depctl.d32 = 0;
}
USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPCTL, depctl.d32);
USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPTSIZ, 0);
USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPINT, 0xFF);
}
for (i = 0; i < pdev->cfg.dev_endpoints; i++)
{
USB_OTG_DEPCTL_TypeDef depctl;
depctl.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[i]->DOEPCTL);
if (depctl.b.epena)
{
depctl.d32 = 0;
depctl.b.epdis = 1;
depctl.b.snak = 1;
}
else
{
depctl.d32 = 0;
}
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPCTL, depctl.d32);
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPTSIZ, 0);
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPINT, 0xFF);
}
msk.d32 = 0;
msk.b.txfifoundrn = 1;
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPMSK, msk.d32, msk.d32);
if (pdev->cfg.dma_enable == 1)
{
dthrctl.d32 = 0;
dthrctl.b.non_iso_thr_en = 1;
dthrctl.b.iso_thr_en = 1;
dthrctl.b.tx_thr_len = 64;
dthrctl.b.rx_thr_en = 1;
dthrctl.b.rx_thr_len = 64;
USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DTHRCTL, dthrctl.d32);
}
USB_OTG_EnableDevInt(pdev);
return status;
}
/**
* @brief USB_OTG_EnableDevInt : Enables the Device mode interrupts
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EnableDevInt(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_GINTMSK_TypeDef intmsk;
intmsk.d32 = 0;
/* Disable all interrupts. */
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTMSK, 0);
/* Clear any pending interrupts */
USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTSTS, 0xBFFFFFFF);
/* Enable the common interrupts */
USB_OTG_EnableCommonInt(pdev);
if (pdev->cfg.dma_enable == 0)
{
intmsk.b.rxstsqlvl = 1;
}
/* Enable interrupts matching to the Device mode ONLY */
intmsk.b.usbsuspend = 1;
intmsk.b.usbreset = 1;
intmsk.b.enumdone = 1;
intmsk.b.inepintr = 1;
intmsk.b.outepintr = 1;
intmsk.b.sofintr = 1;
intmsk.b.incomplisoin = 1;
intmsk.b.incomplisoout = 1;
#ifdef VBUS_SENSING_ENABLED
intmsk.b.sessreqintr = 1;
intmsk.b.otgintr = 1;
#endif
USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, intmsk.d32, intmsk.d32);
return status;
}
/**
* @brief USB_OTG_GetDeviceSpeed
* Get the device speed from the device status register
* @param None
* @retval status
*/
enum USB_OTG_SPEED USB_OTG_GetDeviceSpeed (USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_DSTS_TypeDef dsts;
enum USB_OTG_SPEED speed = USB_SPEED_UNKNOWN;
dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
switch (dsts.b.enumspd)
{
case DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
speed = USB_SPEED_HIGH;
break;
case DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
case DSTS_ENUMSPD_FS_PHY_48MHZ:
speed = USB_SPEED_FULL;
break;
case DSTS_ENUMSPD_LS_PHY_6MHZ:
speed = USB_SPEED_LOW;
break;
}
return speed;
}
/**
* @brief enables EP0 OUT to receive SETUP packets and configures EP0
* for transmitting packets
* @param None
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EP0Activate(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DSTS_TypeDef dsts;
USB_OTG_DEPCTL_TypeDef diepctl;
USB_OTG_DCTL_TypeDef dctl;
dctl.d32 = 0;
/* Read the Device Status and Endpoint 0 Control registers */
dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
diepctl.d32 = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[0]->DIEPCTL);
/* Set the MPS of the IN EP based on the enumeration speed */
switch (dsts.b.enumspd)
{
case DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
case DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
case DSTS_ENUMSPD_FS_PHY_48MHZ:
diepctl.b.mps = DEP0CTL_MPS_64;
break;
case DSTS_ENUMSPD_LS_PHY_6MHZ:
diepctl.b.mps = DEP0CTL_MPS_8;
break;
}
USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[0]->DIEPCTL, diepctl.d32);
dctl.b.cgnpinnak = 1;
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, dctl.d32, dctl.d32);
return status;
}
/**
* @brief USB_OTG_EPActivate : Activates an EP
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EPActivate(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
USB_OTG_DAINT_TypeDef daintmsk;
__IO uint32_t *addr;
depctl.d32 = 0;
daintmsk.d32 = 0;
/* Read DEPCTLn register */
if (ep->is_in == 1)
{
addr = &pdev->regs.INEP_REGS[ep->num]->DIEPCTL;
daintmsk.ep.in = 1 << ep->num;
}
else
{
addr = &pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL;
daintmsk.ep.out = 1 << ep->num;
}
/* If the EP is already active don't change the EP Control
* register. */
depctl.d32 = USB_OTG_READ_REG32(addr);
if (!depctl.b.usbactep)
{
depctl.b.mps = ep->maxpacket;
depctl.b.eptype = ep->type;
depctl.b.txfnum = ep->tx_fifo_num;
depctl.b.setd0pid = 1;
depctl.b.usbactep = 1;
USB_OTG_WRITE_REG32(addr, depctl.d32);
}
/* Enable the Interrupt for this EP */
#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED
if((ep->num == 1)&&(pdev->cfg.coreID == USB_OTG_HS_CORE_ID))
{
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DEACHMSK, 0, daintmsk.d32);
}
else
#endif
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DAINTMSK, 0, daintmsk.d32);
return status;
}
/**
* @brief USB_OTG_EPDeactivate : Deactivates an EP
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EPDeactivate(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
USB_OTG_DAINT_TypeDef daintmsk;
__IO uint32_t *addr;
depctl.d32 = 0;
daintmsk.d32 = 0;
/* Read DEPCTLn register */
if (ep->is_in == 1)
{
addr = &pdev->regs.INEP_REGS[ep->num]->DIEPCTL;
daintmsk.ep.in = 1 << ep->num;
}
else
{
addr = &pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL;
daintmsk.ep.out = 1 << ep->num;
}
depctl.b.usbactep = 0;
USB_OTG_WRITE_REG32(addr, depctl.d32);
/* Disable the Interrupt for this EP */
#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED
if((ep->num == 1)&&(pdev->cfg.coreID == USB_OTG_HS_CORE_ID))
{
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DEACHMSK, daintmsk.d32, 0);
}
else
#endif
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DAINTMSK, daintmsk.d32, 0);
return status;
}
/**
* @brief USB_OTG_EPStartXfer : Handle the setup for data xfer for an EP and
* starts the xfer
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EPStartXfer(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
USB_OTG_DEPXFRSIZ_TypeDef deptsiz;
USB_OTG_DSTS_TypeDef dsts;
uint32_t fifoemptymsk = 0;
depctl.d32 = 0;
deptsiz.d32 = 0;
/* IN endpoint */
if (ep->is_in == 1)
{
depctl.d32 = USB_OTG_READ_REG32(&(pdev->regs.INEP_REGS[ep->num]->DIEPCTL));
deptsiz.d32 = USB_OTG_READ_REG32(&(pdev->regs.INEP_REGS[ep->num]->DIEPTSIZ));
/* Zero Length Packet? */
if (ep->xfer_len == 0)
{
deptsiz.b.xfersize = 0;
deptsiz.b.pktcnt = 1;
}
else
{
/* Program the transfer size and packet count
* as follows: xfersize = N * maxpacket +
* short_packet pktcnt = N + (short_packet
* exist ? 1 : 0)
*/
deptsiz.b.xfersize = ep->xfer_len;
deptsiz.b.pktcnt = (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket;
if (ep->type == EP_TYPE_ISOC)
{
deptsiz.b.mc = 1;
}
}
USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPTSIZ, deptsiz.d32);
if (pdev->cfg.dma_enable == 1)
{
USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPDMA, ep->dma_addr);
}
else
{
if (ep->type != EP_TYPE_ISOC)
{
/* Enable the Tx FIFO Empty Interrupt for this EP */
if (ep->xfer_len > 0)
{
fifoemptymsk = 1 << ep->num;
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPEMPMSK, 0, fifoemptymsk);
}
}
}
if (ep->type == EP_TYPE_ISOC)
{
dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
if (((dsts.b.soffn)&0x1) == 0)
{
depctl.b.setd1pid = 1;
}
else
{
depctl.b.setd0pid = 1;
}
}
/* EP enable, IN data in FIFO */
depctl.b.cnak = 1;
depctl.b.epena = 1;
USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPCTL, depctl.d32);
if (ep->type == EP_TYPE_ISOC)
{
USB_OTG_WritePacket(pdev, ep->xfer_buff, ep->num, ep->xfer_len);
}
}
else
{
/* OUT endpoint */
depctl.d32 = USB_OTG_READ_REG32(&(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL));
deptsiz.d32 = USB_OTG_READ_REG32(&(pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ));
/* Program the transfer size and packet count as follows:
* pktcnt = N
* xfersize = N * maxpacket
*/
if (ep->xfer_len == 0)
{
deptsiz.b.xfersize = ep->maxpacket;
deptsiz.b.pktcnt = 1;
}
else
{
deptsiz.b.pktcnt = (ep->xfer_len + (ep->maxpacket - 1)) / ep->maxpacket;
deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket;
}
USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ, deptsiz.d32);
if (pdev->cfg.dma_enable == 1)
{
USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPDMA, ep->dma_addr);
}
if (ep->type == EP_TYPE_ISOC)
{
if (ep->even_odd_frame)
{
depctl.b.setd1pid = 1;
}
else
{
depctl.b.setd0pid = 1;
}
}
/* EP enable */
depctl.b.cnak = 1;
depctl.b.epena = 1;
USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL, depctl.d32);
}
return status;
}
/**
* @brief USB_OTG_EP0StartXfer : Handle the setup for a data xfer for EP0 and
* starts the xfer
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EP0StartXfer(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
USB_OTG_DEP0XFRSIZ_TypeDef deptsiz;
USB_OTG_INEPREGS *in_regs;
uint32_t fifoemptymsk = 0;
depctl.d32 = 0;
deptsiz.d32 = 0;
/* IN endpoint */
if (ep->is_in == 1)
{
in_regs = pdev->regs.INEP_REGS[0];
depctl.d32 = USB_OTG_READ_REG32(&in_regs->DIEPCTL);
deptsiz.d32 = USB_OTG_READ_REG32(&in_regs->DIEPTSIZ);
/* Zero Length Packet? */
if (ep->xfer_len == 0)
{
deptsiz.b.xfersize = 0;
deptsiz.b.pktcnt = 1;
}
else
{
if (ep->xfer_len > ep->maxpacket)
{
ep->xfer_len = ep->maxpacket;
deptsiz.b.xfersize = ep->maxpacket;
}
else
{
deptsiz.b.xfersize = ep->xfer_len;
}
deptsiz.b.pktcnt = 1;
}
USB_OTG_WRITE_REG32(&in_regs->DIEPTSIZ, deptsiz.d32);
if (pdev->cfg.dma_enable == 1)
{
USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPDMA, ep->dma_addr);
}
/* EP enable, IN data in FIFO */
depctl.b.cnak = 1;
depctl.b.epena = 1;
USB_OTG_WRITE_REG32(&in_regs->DIEPCTL, depctl.d32);
if (pdev->cfg.dma_enable == 0)
{
/* Enable the Tx FIFO Empty Interrupt for this EP */
if (ep->xfer_len > 0)
{
{
fifoemptymsk |= 1 << ep->num;
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPEMPMSK, 0, fifoemptymsk);
}
}
}
}
else
{
/* OUT endpoint */
depctl.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
deptsiz.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ);
/* Program the transfer size and packet count as follows:
* xfersize = N * (maxpacket + 4 - (maxpacket % 4))
* pktcnt = N */
if (ep->xfer_len == 0)
{
deptsiz.b.xfersize = ep->maxpacket;
deptsiz.b.pktcnt = 1;
}
else
{
ep->xfer_len = ep->maxpacket;
deptsiz.b.xfersize = ep->maxpacket;
deptsiz.b.pktcnt = 1;
}
USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ, deptsiz.d32);
if (pdev->cfg.dma_enable == 1)
{
USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPDMA, ep->dma_addr);
}
/* EP enable */
depctl.b.cnak = 1;
depctl.b.epena = 1;
USB_OTG_WRITE_REG32 (&(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL), depctl.d32);
}
return status;
}
/**
* @brief USB_OTG_EPSetStall : Set the EP STALL
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EPSetStall(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
__IO uint32_t *depctl_addr;
depctl.d32 = 0;
if (ep->is_in == 1)
{
depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
/* set the disable and stall bits */
if (depctl.b.epena)
{
depctl.b.epdis = 1;
}
depctl.b.stall = 1;
USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
}
else
{
depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
/* set the stall bit */
depctl.b.stall = 1;
USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
}
return status;
}
/**
* @brief Clear the EP STALL
* @param pdev : Selected device
* @retval USB_OTG_STS : status
*/
USB_OTG_STS USB_OTG_EPClearStall(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
{
USB_OTG_STS status = USB_OTG_OK;
USB_OTG_DEPCTL_TypeDef depctl;
__IO uint32_t *depctl_addr;
depctl.d32 = 0;
if (ep->is_in == 1)
{
depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
}
else
{
depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
}
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
/* clear the stall bits */
depctl.b.stall = 0;
if (ep->type == EP_TYPE_INTR || ep->type == EP_TYPE_BULK)
{
depctl.b.setd0pid = 1; /* DATA0 */
}
USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
return status;
}
/**
* @brief USB_OTG_ReadDevAllOutEp_itr : returns OUT endpoint interrupt bits
* @param pdev : Selected device
* @retval OUT endpoint interrupt bits
*/
uint32_t USB_OTG_ReadDevAllOutEp_itr(USB_OTG_CORE_HANDLE *pdev)
{
uint32_t v;
v = USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINT);
v &= USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINTMSK);
return ((v & 0xffff0000) >> 16);
}
/**
* @brief USB_OTG_ReadDevOutEP_itr : returns Device OUT EP Interrupt register
* @param pdev : Selected device
* @param ep : end point number
* @retval Device OUT EP Interrupt register
*/
uint32_t USB_OTG_ReadDevOutEP_itr(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
{
uint32_t v;
v = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[epnum]->DOEPINT);
v &= USB_OTG_READ_REG32(&pdev->regs.DREGS->DOEPMSK);
return v;
}
/**
* @brief USB_OTG_ReadDevAllInEPItr : Get int status register
* @param pdev : Selected device
* @retval int status register
*/
uint32_t USB_OTG_ReadDevAllInEPItr(USB_OTG_CORE_HANDLE *pdev)
{
uint32_t v;
v = USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINT);
v &= USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINTMSK);
return (v & 0xffff);
}
/**
* @brief configures EPO to receive SETUP packets
* @param None
* @retval : None
*/
void USB_OTG_EP0_OutStart(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_DEP0XFRSIZ_TypeDef doeptsize0;
doeptsize0.d32 = 0;
doeptsize0.b.supcnt = 3;
doeptsize0.b.pktcnt = 1;
doeptsize0.b.xfersize = 8 * 3;
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[0]->DOEPTSIZ, doeptsize0.d32 );
if (pdev->cfg.dma_enable == 1)
{
USB_OTG_DEPCTL_TypeDef doepctl;
doepctl.d32 = 0;
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[0]->DOEPDMA,
(uint32_t)&pdev->dev.setup_packet);
/* EP enable */
doepctl.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[0]->DOEPCTL);
doepctl.b.epena = 1;
doepctl.d32 = 0x80008000;
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[0]->DOEPCTL, doepctl.d32);
}
}
/**
* @brief USB_OTG_RemoteWakeup : active remote wakeup signalling
* @param None
* @retval : None
*/
void USB_OTG_ActiveRemoteWakeup(USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_DCTL_TypeDef dctl;
USB_OTG_DSTS_TypeDef dsts;
USB_OTG_PCGCCTL_TypeDef power;
if (pdev->dev.DevRemoteWakeup)
{
dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
if(dsts.b.suspsts == 1)
{
if(pdev->cfg.low_power)
{
/* un-gate USB Core clock */
power.d32 = USB_OTG_READ_REG32(pdev->regs.PCGCCTL);
power.b.gatehclk = 0;
power.b.stoppclk = 0;
USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);
}
/* active Remote wakeup signaling */
dctl.d32 = 0;
dctl.b.rmtwkupsig = 1;
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, 0, dctl.d32);
USB_OTG_BSP_mDelay(5);
USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, dctl.d32, 0 );
}
}
}
/**
* @brief USB_OTG_UngateClock : active USB Core clock
* @param None
* @retval : None
*/
void USB_OTG_UngateClock(USB_OTG_CORE_HANDLE *pdev)
{
if(pdev->cfg.low_power)
{
USB_OTG_DSTS_TypeDef dsts;
USB_OTG_PCGCCTL_TypeDef power;
dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
if(dsts.b.suspsts == 1)
{
/* un-gate USB Core clock */
power.d32 = USB_OTG_READ_REG32(pdev->regs.PCGCCTL);
power.b.gatehclk = 0;
power.b.stoppclk = 0;
USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);
}
}
}
/**
* @brief Stop the device and clean up fifo's
* @param None
* @retval : None
*/
void USB_OTG_StopDevice(USB_OTG_CORE_HANDLE *pdev)
{
uint32_t i;
pdev->dev.device_status = 1;
for (i = 0; i < pdev->cfg.dev_endpoints ; i++)
{
USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPINT, 0xFF);
USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPINT, 0xFF);
}
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DIEPMSK, 0 );
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DOEPMSK, 0 );
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINTMSK, 0 );
USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINT, 0xFFFFFFFF );
/* Flush the FIFO */
USB_OTG_FlushRxFifo(pdev);
USB_OTG_FlushTxFifo(pdev , 0x10 );
}
/**
* @brief returns the EP Status
* @param pdev : Selected device
* ep : endpoint structure
* @retval : EP status
*/
uint32_t USB_OTG_GetEPStatus(USB_OTG_CORE_HANDLE *pdev ,USB_OTG_EP *ep)
{
USB_OTG_DEPCTL_TypeDef depctl;
__IO uint32_t *depctl_addr;
uint32_t Status = 0;
depctl.d32 = 0;
if (ep->is_in == 1)
{
depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
if (depctl.b.stall == 1)
Status = USB_OTG_EP_TX_STALL;
else if (depctl.b.naksts == 1)
Status = USB_OTG_EP_TX_NAK;
else
Status = USB_OTG_EP_TX_VALID;
}
else
{
depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
if (depctl.b.stall == 1)
Status = USB_OTG_EP_RX_STALL;
else if (depctl.b.naksts == 1)
Status = USB_OTG_EP_RX_NAK;
else
Status = USB_OTG_EP_RX_VALID;
}
/* Return the current status */
return Status;
}
/**
* @brief Set the EP Status
* @param pdev : Selected device
* Status : new Status
* ep : EP structure
* @retval : None
*/
void USB_OTG_SetEPStatus (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep , uint32_t Status)
{
USB_OTG_DEPCTL_TypeDef depctl;
__IO uint32_t *depctl_addr;
depctl.d32 = 0;
/* Process for IN endpoint */
if (ep->is_in == 1)
{
depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
if (Status == USB_OTG_EP_TX_STALL)
{
USB_OTG_EPSetStall(pdev, ep); return;
}
else if (Status == USB_OTG_EP_TX_NAK)
depctl.b.snak = 1;
else if (Status == USB_OTG_EP_TX_VALID)
{
if (depctl.b.stall == 1)
{
ep->even_odd_frame = 0;
USB_OTG_EPClearStall(pdev, ep);
return;
}
depctl.b.cnak = 1;
depctl.b.usbactep = 1;
depctl.b.epena = 1;
}
else if (Status == USB_OTG_EP_TX_DIS)
depctl.b.usbactep = 0;
}
else /* Process for OUT endpoint */
{
depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
if (Status == USB_OTG_EP_RX_STALL) {
depctl.b.stall = 1;
}
else if (Status == USB_OTG_EP_RX_NAK)
depctl.b.snak = 1;
else if (Status == USB_OTG_EP_RX_VALID)
{
if (depctl.b.stall == 1)
{
ep->even_odd_frame = 0;
USB_OTG_EPClearStall(pdev, ep);
return;
}
depctl.b.cnak = 1;
depctl.b.usbactep = 1;
depctl.b.epena = 1;
}
else if (Status == USB_OTG_EP_RX_DIS)
{
depctl.b.usbactep = 0;
}
}
USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
}
#endif
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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