path: root/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysUsb.c

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    *   Redistributions of source code must retain the above copyright notice,
        this list of conditions and the following disclaimer.

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        notice, this list of conditions and the following disclaimer in the
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*******************************************************************************/

#include "ctrlEnv/sys/mvSysUsb.h"

MV_TARGET usbAddrDecPrioTab[] =
{
#if defined(MV_INCLUDE_SDRAM_CS0)
    SDRAM_CS0,
#endif
#if defined(MV_INCLUDE_SDRAM_CS1)
    SDRAM_CS1,
#endif
#if defined(MV_INCLUDE_SDRAM_CS2)
    SDRAM_CS2,
#endif
#if defined(MV_INCLUDE_SDRAM_CS3)
    SDRAM_CS3,
#endif
#if defined(MV_INCLUDE_CESA) && defined(USB_UNDERRUN_WA)
    CRYPT_ENG,
#endif
#if defined(MV_INCLUDE_PEX)
    PEX0_MEM,
#endif
    TBL_TERM
};



MV_STATUS   mvUsbInit(int dev, MV_BOOL isHost)
{
    MV_STATUS       status;

    status = mvUsbWinInit(dev);
    if(status != MV_OK)
        return status;

    return mvUsbHalInit(dev, isHost);
}


/*******************************************************************************
* usbWinOverlapDetect - Detect USB address windows overlapping
*
* DESCRIPTION:
*       An unpredicted behaviur is expected in case USB address decode
*       windows overlapps.
*       This function detects USB address decode windows overlapping of a
*       specified window. The function does not check the window itself for
*       overlapping. The function also skipps disabled address decode windows.
*
* INPUT:
*       winNum      - address decode window number.
*       pAddrDecWin - An address decode window struct.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_TRUE if the given address window overlap current address
*       decode map, MV_FALSE otherwise, MV_ERROR if reading invalid data
*       from registers.
*
*******************************************************************************/
static MV_STATUS usbWinOverlapDetect(int dev, MV_U32 winNum,
                                     MV_ADDR_WIN *pAddrWin)
{
    MV_U32          winNumIndex;
    MV_DEC_WIN      addrDecWin;

    for(winNumIndex=0; winNumIndex<MV_USB_MAX_ADDR_DECODE_WIN; winNumIndex++)
    {
        /* Do not check window itself       */
        if (winNumIndex == winNum)
        {
            continue;
        }

        /* Get window parameters    */
        if (MV_OK != mvUsbWinGet(dev, winNumIndex, &addrDecWin))
        {
            mvOsPrintf("%s: ERR. TargetWinGet failed\n", __FUNCTION__);
            return MV_ERROR;
        }

        /* Do not check disabled windows    */
        if(addrDecWin.enable == MV_FALSE)
        {
            continue;
        }

        if (MV_TRUE == ctrlWinOverlapTest(pAddrWin, &(addrDecWin.addrWin)))
        {
            return MV_TRUE;
        }
    }
    return MV_FALSE;
}

/*******************************************************************************
* mvUsbWinSet - Set USB target address window
*
* DESCRIPTION:
*       This function sets a peripheral target (e.g. SDRAM bank0, PCI_MEM0)
*       address window, also known as address decode window.
*       After setting this target window, the USB will be able to access the
*       target within the address window.
*
* INPUT:
*       winNum      - USB target address decode window number.
*       pAddrDecWin - USB target window data structure.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_ERROR if address window overlapps with other address decode windows.
*       MV_BAD_PARAM if base address is invalid parameter or target is
*       unknown.
*
*******************************************************************************/
MV_STATUS mvUsbWinSet(int dev, MV_U32 winNum, MV_DEC_WIN *pDecWin)
{
    MV_DEC_WIN_PARAMS   winParams;
    MV_U32              sizeReg, baseReg;

    /* Parameter checking   */
    if (winNum >= MV_USB_MAX_ADDR_DECODE_WIN)
    {
        mvOsPrintf("%s: ERR. Invalid win num %d\n",__FUNCTION__, winNum);
        return MV_BAD_PARAM;
    }

    /* Check if the requested window overlapps with current windows         */
    if (MV_TRUE == usbWinOverlapDetect(dev, winNum, &pDecWin->addrWin))
    {
        mvOsPrintf("%s: ERR. Window %d overlap\n", __FUNCTION__, winNum);
        return MV_ERROR;
    }

    /* check if address is aligned to the size */
    if(MV_IS_NOT_ALIGN(pDecWin->addrWin.baseLow, pDecWin->addrWin.size))
    {
        mvOsPrintf("mvUsbWinSet:Error setting USB window %d to "\
                   "target %s.\nAddress 0x%08x is unaligned to size 0x%x.\n",
                   winNum,
                   mvCtrlTargetNameGet(pDecWin->target),
                   pDecWin->addrWin.baseLow,
                   pDecWin->addrWin.size);
        return MV_ERROR;
    }

    if(MV_OK != mvCtrlAddrDecToParams(pDecWin, &winParams))
    {
        mvOsPrintf("%s: mvCtrlAddrDecToParams Failed\n", __FUNCTION__);
        return MV_ERROR;
    }

    /* set Size, Attributes and TargetID */
    sizeReg = (((winParams.targetId << MV_USB_WIN_TARGET_OFFSET) & MV_USB_WIN_TARGET_MASK) |
               ((winParams.attrib   << MV_USB_WIN_ATTR_OFFSET)   & MV_USB_WIN_ATTR_MASK)   |
               ((winParams.size << MV_USB_WIN_SIZE_OFFSET) & MV_USB_WIN_SIZE_MASK));

#if defined(MV645xx) || defined(MV646xx)
    /* If window is DRAM with HW cache coherency, make sure bit2 is set */
    sizeReg &= ~MV_USB_WIN_BURST_WR_LIMIT_MASK;

    if((MV_TARGET_IS_DRAM(pDecWin->target)) &&
       (pDecWin->addrWinAttr.cachePolicy != NO_COHERENCY))
    {
        sizeReg |= MV_USB_WIN_BURST_WR_32BIT_LIMIT;
    }
    else
    {
        sizeReg |= MV_USB_WIN_BURST_WR_NO_LIMIT;
    }
#endif /* MV645xx || MV646xx */

    if (pDecWin->enable == MV_TRUE)
    {
        sizeReg |= MV_USB_WIN_ENABLE_MASK;
    }
    else
    {
        sizeReg &= ~MV_USB_WIN_ENABLE_MASK;
    }

    /* Update Base value  */
    baseReg = (winParams.baseAddr & MV_USB_WIN_BASE_MASK);

    MV_REG_WRITE( MV_USB_WIN_CTRL_REG(dev, winNum), sizeReg);
    MV_REG_WRITE( MV_USB_WIN_BASE_REG(dev, winNum), baseReg);

    return MV_OK;
}

/*******************************************************************************
* mvUsbWinGet - Get USB peripheral target address window.
*
* DESCRIPTION:
*       Get USB peripheral target address window.
*
* INPUT:
*       winNum - USB target address decode window number.
*
* OUTPUT:
*       pDecWin - USB target window data structure.
*
* RETURN:
*       MV_ERROR if register parameters are invalid.
*
*******************************************************************************/
MV_STATUS mvUsbWinGet(int dev, MV_U32 winNum, MV_DEC_WIN *pDecWin)
{
    MV_DEC_WIN_PARAMS   winParam;
    MV_U32              sizeReg, baseReg;

    /* Parameter checking   */
    if (winNum >= MV_USB_MAX_ADDR_DECODE_WIN)
    {
        mvOsPrintf("%s (dev=%d): ERR. Invalid winNum %d\n",
                    __FUNCTION__, dev, winNum);
        return MV_NOT_SUPPORTED;
    }

    baseReg = MV_REG_READ( MV_USB_WIN_BASE_REG(dev, winNum) );
    sizeReg = MV_REG_READ( MV_USB_WIN_CTRL_REG(dev, winNum) );

   /* Check if window is enabled   */
    if(sizeReg & MV_USB_WIN_ENABLE_MASK)
    {
        pDecWin->enable = MV_TRUE;

        /* Extract window parameters from registers */
        winParam.targetId = (sizeReg & MV_USB_WIN_TARGET_MASK) >> MV_USB_WIN_TARGET_OFFSET;
        winParam.attrib   = (sizeReg & MV_USB_WIN_ATTR_MASK) >> MV_USB_WIN_ATTR_OFFSET;
        winParam.size     = (sizeReg & MV_USB_WIN_SIZE_MASK) >> MV_USB_WIN_SIZE_OFFSET;
        winParam.baseAddr = (baseReg & MV_USB_WIN_BASE_MASK);

        /* Translate the decode window parameters to address decode struct */
        if (MV_OK != mvCtrlParamsToAddrDec(&winParam, pDecWin))
        {
            mvOsPrintf("Failed to translate register parameters to USB address" \
                       " decode window structure\n");
            return MV_ERROR;
        }
    }
    else
    {
        pDecWin->enable = MV_FALSE;
    }
    return MV_OK;
}

/*******************************************************************************
* mvUsbWinInit -
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*       MV_ERROR if register parameters are invalid.
*
*******************************************************************************/
MV_STATUS   mvUsbWinInit(int dev)
{
    MV_STATUS       status;
    MV_DEC_WIN      usbWin;
    MV_CPU_DEC_WIN  cpuAddrDecWin;
    int             winNum;
    MV_U32          winPrioIndex = 0;

    /* First disable all address decode windows */
    for(winNum = 0; winNum < MV_USB_MAX_ADDR_DECODE_WIN; winNum++)
    {
        MV_REG_BIT_RESET(MV_USB_WIN_CTRL_REG(dev, winNum), MV_USB_WIN_ENABLE_MASK);
    }

    /* Go through all windows in user table until table terminator          */
    winNum = 0;
    while( (usbAddrDecPrioTab[winPrioIndex] != TBL_TERM) &&
           (winNum < MV_USB_MAX_ADDR_DECODE_WIN) )
    {
        /* first get attributes from CPU If */
        status = mvCpuIfTargetWinGet(usbAddrDecPrioTab[winPrioIndex],
                                     &cpuAddrDecWin);

        if(MV_NO_SUCH == status)
        {
            winPrioIndex++;
            continue;
        }
        if (MV_OK != status)
        {
            mvOsPrintf("%s: ERR. mvCpuIfTargetWinGet failed\n", __FUNCTION__);
            return MV_ERROR;
        }

        if (cpuAddrDecWin.enable == MV_TRUE)
        {
            usbWin.addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh;
            usbWin.addrWin.baseLow  = cpuAddrDecWin.addrWin.baseLow;
            usbWin.addrWin.size     = cpuAddrDecWin.addrWin.size;
            usbWin.enable           = MV_TRUE;
            usbWin.target           = usbAddrDecPrioTab[winPrioIndex];

#if defined(MV645xx) || defined(MV646xx)
            /* Get the default attributes for that target window */
            mvCtrlDefAttribGet(usbWin.target, &usbWin.addrWinAttr);
#endif /* MV645xx || MV646xx */

            if(MV_OK != mvUsbWinSet(dev, winNum, &usbWin))
            {
                return MV_ERROR;
            }
            winNum++;
        }
        winPrioIndex++;
    }
    return MV_OK;
}

/*******************************************************************************
* mvUsbAddrDecShow - Print the USB address decode map.
*
* DESCRIPTION:
*       This function print the USB address decode map.
*
* INPUT:
*       None.
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvUsbAddrDecShow(MV_VOID)
{
    MV_DEC_WIN  addrDecWin;
    int         i, winNum;

    mvOsOutput( "\n" );
    mvOsOutput( "USB:\n" );
    mvOsOutput( "----\n" );

    for(i=0; i<mvCtrlUsbMaxGet(); i++)
    {
        mvOsOutput( "Device %d:\n", i);

        for(winNum = 0; winNum < MV_USB_MAX_ADDR_DECODE_WIN; winNum++)
        {
            memset(&addrDecWin, 0, sizeof(MV_DEC_WIN) );

            mvOsOutput( "win%d - ", winNum );

            if( mvUsbWinGet(i, winNum, &addrDecWin ) == MV_OK )
            {
                if( addrDecWin.enable )
                {
                    mvOsOutput( "%s base %08x, ",
                        mvCtrlTargetNameGet(addrDecWin.target), addrDecWin.addrWin.baseLow );

                    mvSizePrint( addrDecWin.addrWin.size );

#if defined(MV645xx) || defined(MV646xx)
                    switch( addrDecWin.addrWinAttr.swapType)
                    {
                        case MV_BYTE_SWAP:
                            mvOsOutput( "BYTE_SWAP, " );
                            break;
                        case MV_NO_SWAP:
                            mvOsOutput( "NO_SWAP  , " );
                            break;
                        case MV_BYTE_WORD_SWAP:
                            mvOsOutput( "BYTE_WORD_SWAP, " );
                            break;
                        case MV_WORD_SWAP:
                            mvOsOutput( "WORD_SWAP, " );
                            break;
                        default:
                            mvOsOutput( "SWAP N/A , " );
                    }

                    switch( addrDecWin.addrWinAttr.cachePolicy )
                    {
                        case NO_COHERENCY:
                            mvOsOutput( "NO_COHERENCY , " );
                            break;
                        case WT_COHERENCY:
                            mvOsOutput( "WT_COHERENCY , " );
                            break;
                        case WB_COHERENCY:
                            mvOsOutput( "WB_COHERENCY , " );
                            break;
                        default:
                            mvOsOutput( "COHERENCY N/A, " );
                    }

                    switch( addrDecWin.addrWinAttr.pcixNoSnoop )
                    {
                        case 0:
                            mvOsOutput( "PCI-X NS inactive, " );
                            break;
                        case 1:
                            mvOsOutput( "PCI-X NS active  , " );
                            break;
                        default:
                            mvOsOutput( "PCI-X NS N/A     , " );
                    }

                    switch( addrDecWin.addrWinAttr.p2pReq64 )
                    {
                        case 0:
                            mvOsOutput( "REQ64 force" );
                            break;
                        case 1:
                            mvOsOutput( "REQ64 detect" );
                            break;
                        default:
                            mvOsOutput( "REQ64 N/A" );
                    }
#endif /* MV645xx || MV646xx */
                    mvOsOutput( "\n" );
                }
                else
                    mvOsOutput( "disable\n" );
            }
        }
    }
}