From 044ad7c3987460ede48ff27afd6bdb0ca05a0432 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 4 Jul 2011 20:52:54 +0200 Subject: import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v15011 it's sad to see that atmel doesn't publish their svn repo or has a centralized location or even puts proper version/release info into the library itself --- usb/host/ohci/ohci.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) create mode 100644 usb/host/ohci/ohci.c (limited to 'usb/host/ohci/ohci.c') diff --git a/usb/host/ohci/ohci.c b/usb/host/ohci/ohci.c new file mode 100644 index 0000000..d125559 --- /dev/null +++ b/usb/host/ohci/ohci.c @@ -0,0 +1,124 @@ +/* ---------------------------------------------------------------------------- + * ATMEL Microcontroller Software Support + * ---------------------------------------------------------------------------- + * Copyright (c) 2008, Atmel Corporation + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the disclaimer below. + * + * Atmel's name may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * ---------------------------------------------------------------------------- + */ + +/// OHCI ED, TD HCCA definitions + inlined functions + + +#include "ohci.h" + + +//------------------------------------------------------------------------------ +/// Init a pre-allocated endpoint descriptor +/// TD must be aligned on a 16 bytes boundary +//------------------------------------------------------------------------------ +void OHCI_CreateEd( unsigned int EDAddr, + unsigned int MaxPacket, + unsigned int TDFormat, + unsigned int Skip, + unsigned int Speed, + unsigned int Direction, + unsigned int EndPt, + unsigned int FuncAddress, + unsigned int TDQTailPntr, + unsigned int TDQHeadPntr, + unsigned int ToggleCarry, + unsigned int NextED ) +{ + OHCIEndpointDescriptor *pED = (OHCIEndpointDescriptor*) EDAddr; + + pED->Control = (MaxPacket << 16) | (TDFormat << 15) | + (Skip << 14) | (Speed << 13) | (Direction << 11) | + (EndPt << 7) | FuncAddress; + pED->TailP = (TDQTailPntr & 0xFFFFFFF0); + pED->HeadP = (TDQHeadPntr & 0xFFFFFFF0) | (ToggleCarry << 1); + pED->NextEd = (NextED & 0xFFFFFFF0); +} + +//------------------------------------------------------------------------------ +/// Init a pre-allocated transfer descriptor +/// TD must be aligned on a 16 bytes boundary +//------------------------------------------------------------------------------ +void OHCI_CreateGenTd( unsigned int GenTdAddr, + unsigned int DataToggle, + unsigned int DelayInterrupt, + unsigned int Direction, + unsigned int BufRnding, + unsigned int CurBufPtr, + unsigned int NextTD, + unsigned int BuffLen) +{ + OHCITransferDescriptor *pTD = (OHCITransferDescriptor*) GenTdAddr; + + pTD->Control = (DataToggle << 24) | (DelayInterrupt << 21) + | (Direction << 19) | (BufRnding << 18); + pTD->CBP = CurBufPtr; + pTD->NextTD = (NextTD & 0xFFFFFFF0); + pTD->BE = (BuffLen) ? (CurBufPtr + BuffLen - 1) : CurBufPtr; +} + +//------------------------------------------------------------------------------ +/// Init a pre-allocated periodic transfer descriptor +/// TD must be aligned on a 16 bytes boundary +//------------------------------------------------------------------------------ +void OHCI_CreateGenITd( unsigned int GenTdAddr, + unsigned int CondCode, + unsigned int FrameCount, + unsigned int DelayInterrupt, + unsigned int StartFrame, + unsigned int BuffPage0, + unsigned int NextTD, + unsigned int BufEnd, + unsigned int PswOffset0, + unsigned int PswOffset1, + unsigned int PswOffset2, + unsigned int PswOffset3, + unsigned int PswOffset4, + unsigned int PswOffset5, + unsigned int PswOffset6, + unsigned int PswOffset7) +{ + OHCIPeriodicTransferDescriptor *pITD = (OHCIPeriodicTransferDescriptor*) GenTdAddr; + + pITD->Control = (CondCode << 28) | (FrameCount << 24) + | (DelayInterrupt << 21) | StartFrame; + pITD->BP0 = (BuffPage0 << 12); + pITD->NextTD = (NextTD << 4); + pITD->BE = BufEnd; + pITD->PSW0 = PswOffset0; + pITD->PSW1 = PswOffset1; + pITD->PSW2 = PswOffset2; + pITD->PSW3 = PswOffset3; + pITD->PSW4 = PswOffset4; + pITD->PSW5 = PswOffset5; + pITD->PSW6 = PswOffset6; + pITD->PSW7 = PswOffset7; + +} + + -- cgit v1.2.3