/******************************************************************************* Copyright (C) Marvell International Ltd. and its affiliates This software file (the "File") is owned and distributed by Marvell International Ltd. and/or its affiliates ("Marvell") under the following alternative licensing terms. Once you have made an election to distribute the File under one of the following license alternatives, please (i) delete this introductory statement regarding license alternatives, (ii) delete the two license alternatives that you have not elected to use and (iii) preserve the Marvell copyright notice above. ******************************************************************************** Marvell Commercial License Option If you received this File from Marvell and you have entered into a commercial license agreement (a "Commercial License") with Marvell, the File is licensed to you under the terms of the applicable Commercial License. ******************************************************************************** Marvell GPL License Option If you received this File from Marvell, you may opt to use, redistribute and/or modify this File in accordance with the terms and conditions of the General Public License Version 2, June 1991 (the "GPL License"), a copy of which is available along with the File in the license.txt file or by writing to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or on the worldwide web at http://www.gnu.org/licenses/gpl.txt. 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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 following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Marvell nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 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 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. *******************************************************************************/ #include "mvPciIf.h" #include "ctrlEnv/sys/mvSysPex.h" #if defined(MV_INCLUDE_PCI) #include "ctrlEnv/sys/mvSysPci.h" #endif /* defines */ #ifdef MV_DEBUG #define DB(x) x #else #define DB(x) #endif /******************************************************************************* * mvPciInit - Initialize PCI interfaces * * DESCRIPTION: * * INPUT: * * * OUTPUT: * None. * * RETURN: * MV_OK if function success otherwise MV_ERROR or MV_BAD_PARAM * *******************************************************************************/ MV_STATUS mvPciIfInit(MV_U32 pciIf, PCI_IF_MODE pciIfmode) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) MV_PCI_MOD pciMod; if (PCI_IF_MODE_HOST == pciIfmode) { pciMod = MV_PCI_MOD_HOST; } else if (PCI_IF_MODE_DEVICE == pciIfmode) { pciMod = MV_PCI_MOD_DEVICE; } else { mvOsPrintf("%s: ERROR!!! Bus %d mode %d neither host nor device!\n", __FUNCTION__, pciIf, pciIfmode); return MV_FAIL; } return mvPciInit(pciIf - MV_PCI_START_IF, pciMod); #else return MV_OK; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) MV_PEX_TYPE pexType; if (PCI_IF_MODE_HOST == pciIfmode) { pexType = MV_PEX_ROOT_COMPLEX; } else if (PCI_IF_MODE_DEVICE == pciIfmode) { pexType = MV_PEX_END_POINT; } else { mvOsPrintf("%s: ERROR!!! Bus %d type %d neither root complex nor" \ " end point\n", __FUNCTION__, pciIf, pciIfmode); return MV_FAIL; } return mvPexInit(pciIf - MV_PEX_START_IF, pexType); #else return MV_OK; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return MV_FAIL; } /* PCI configuration space read write */ /******************************************************************************* * mvPciConfigRead - Read from configuration space * * DESCRIPTION: * This function performs a 32 bit read from PCI configuration space. * It supports both type 0 and type 1 of Configuration Transactions * (local and over bridge). In order to read from local bus segment, use * bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers * will result configuration transaction of type 1 (over bridge). * * INPUT: * pciIf - PCI interface number. * bus - PCI segment bus number. * dev - PCI device number. * func - Function number. * regOffs - Register offset. * * OUTPUT: * None. * * RETURN: * 32bit register data, 0xffffffff on error * *******************************************************************************/ MV_U32 mvPciIfConfigRead (MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, MV_U32 regOff) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciConfigRead(pciIf - MV_PCI_START_IF, bus, dev, func, regOff); #else return 0xffffffff; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexConfigRead(pciIf - MV_PEX_START_IF, bus, dev, func, regOff); #else return 0xffffffff; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return 0; } /******************************************************************************* * mvPciConfigWrite - Write to configuration space * * DESCRIPTION: * This function performs a 32 bit write to PCI configuration space. * It supports both type 0 and type 1 of Configuration Transactions * (local and over bridge). In order to write to local bus segment, use * bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers * will result configuration transaction of type 1 (over bridge). * * INPUT: * pciIf - PCI interface number. * bus - PCI segment bus number. * dev - PCI device number. * func - Function number. * regOffs - Register offset. * data - 32bit data. * * OUTPUT: * None. * * RETURN: * MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK * *******************************************************************************/ MV_STATUS mvPciIfConfigWrite(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, MV_U32 regOff, MV_U32 data) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciConfigWrite(pciIf - MV_PCI_START_IF, bus, dev, func, regOff, data); #else return MV_OK; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexConfigWrite(pciIf - MV_PEX_START_IF, bus, dev, func, regOff, data); #else return MV_OK; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return MV_FAIL; } /******************************************************************************* * mvPciMasterEnable - Enable/disale PCI interface master transactions. * * DESCRIPTION: * This function performs read modified write to PCI command status * (offset 0x4) to set/reset bit 2. After this bit is set, the PCI * master is allowed to gain ownership on the bus, otherwise it is * incapable to do so. * * INPUT: * pciIf - PCI interface number. * enable - Enable/disable parameter. * * OUTPUT: * None. * * RETURN: * MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK * *******************************************************************************/ MV_STATUS mvPciIfMasterEnable(MV_U32 pciIf, MV_BOOL enable) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciMasterEnable(pciIf - MV_PCI_START_IF, enable); #else return MV_OK; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexMasterEnable(pciIf - MV_PEX_START_IF, enable); #else return MV_OK; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return MV_FAIL; } /******************************************************************************* * mvPciSlaveEnable - Enable/disale PCI interface slave transactions. * * DESCRIPTION: * This function performs read modified write to PCI command status * (offset 0x4) to set/reset bit 0 and 1. After those bits are set, * the PCI slave is allowed to respond to PCI IO space access (bit 0) * and PCI memory space access (bit 1). * * INPUT: * pciIf - PCI interface number. * dev - PCI device number. * enable - Enable/disable parameter. * * OUTPUT: * None. * * RETURN: * MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK * *******************************************************************************/ MV_STATUS mvPciIfSlaveEnable(MV_U32 pciIf,MV_U32 bus, MV_U32 dev, MV_BOOL enable) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciSlaveEnable(pciIf - MV_PCI_START_IF,bus,dev, enable); #else return MV_OK; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexSlaveEnable(pciIf - MV_PEX_START_IF,bus,dev, enable); #else return MV_OK; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return MV_FAIL; } /******************************************************************************* * mvPciLocalBusNumSet - Set PCI interface local bus number. * * DESCRIPTION: * This function sets given PCI interface its local bus number. * Note: In case the PCI interface is PCI-X, the information is read-only. * * INPUT: * pciIf - PCI interface number. * busNum - Bus number. * * OUTPUT: * None. * * RETURN: * MV_NOT_ALLOWED in case PCI interface is PCI-X. * MV_BAD_PARAM on bad parameters , * otherwise MV_OK * *******************************************************************************/ MV_STATUS mvPciIfLocalBusNumSet(MV_U32 pciIf, MV_U32 busNum) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciLocalBusNumSet(pciIf - MV_PCI_START_IF, busNum); #else return MV_OK; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexLocalBusNumSet(pciIf - MV_PEX_START_IF, busNum); #else return MV_OK; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return MV_FAIL; } /******************************************************************************* * mvPciLocalBusNumGet - Get PCI interface local bus number. * * DESCRIPTION: * This function gets the local bus number of a given PCI interface. * * INPUT: * pciIf - PCI interface number. * * OUTPUT: * None. * * RETURN: * Local bus number.0xffffffff on Error * *******************************************************************************/ MV_U32 mvPciIfLocalBusNumGet(MV_U32 pciIf) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciLocalBusNumGet(pciIf - MV_PCI_START_IF); #else return 0xFFFFFFFF; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexLocalBusNumGet(pciIf - MV_PEX_START_IF); #else return 0xFFFFFFFF; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n",__FUNCTION__, pciIf); } return 0; } /******************************************************************************* * mvPciLocalDevNumSet - Set PCI interface local device number. * * DESCRIPTION: * This function sets given PCI interface its local device number. * Note: In case the PCI interface is PCI-X, the information is read-only. * * INPUT: * pciIf - PCI interface number. * devNum - Device number. * * OUTPUT: * None. * * RETURN: * MV_NOT_ALLOWED in case PCI interface is PCI-X. MV_BAD_PARAM on bad parameters , * otherwise MV_OK * *******************************************************************************/ MV_STATUS mvPciIfLocalDevNumSet(MV_U32 pciIf, MV_U32 devNum) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciLocalDevNumSet(pciIf - MV_PCI_START_IF, devNum); #else return MV_OK; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexLocalDevNumSet(pciIf - MV_PEX_START_IF, devNum); #else return MV_OK; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return MV_FAIL; } /******************************************************************************* * mvPciLocalDevNumGet - Get PCI interface local device number. * * DESCRIPTION: * This function gets the local device number of a given PCI interface. * * INPUT: * pciIf - PCI interface number. * * OUTPUT: * None. * * RETURN: * Local device number. 0xffffffff on Error * *******************************************************************************/ MV_U32 mvPciIfLocalDevNumGet(MV_U32 pciIf) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { #if defined(MV_INCLUDE_PCI) return mvPciLocalDevNumGet(pciIf - MV_PCI_START_IF); #else return 0xFFFFFFFF; #endif } else if (PCI_IF_TYPE_PEX == pciIfType) { #if defined(MV_INCLUDE_PEX) return mvPexLocalDevNumGet(pciIf - MV_PEX_START_IF); #else return 0xFFFFFFFF; #endif } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return 0; } /******************************************************************************* * mvPciIfTypeGet - * * DESCRIPTION: * * INPUT: * * OUTPUT: * None. * * RETURN: * *******************************************************************************/ PCI_IF_TYPE mvPciIfTypeGet(MV_U32 pciIf) { if ((pciIf >= MV_PCI_START_IF)&&(pciIf < MV_PCI_MAX_IF + MV_PCI_START_IF)) { return PCI_IF_TYPE_CONVEN_PCIX; } else if ((pciIf >= MV_PEX_START_IF) && (pciIf < mvCtrlPexMaxIfGet() + MV_PEX_START_IF)) { return PCI_IF_TYPE_PEX; } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return 0xffffffff; } /******************************************************************************* * mvPciIfTypeGet - * * DESCRIPTION: * * INPUT: * * OUTPUT: * None. * * RETURN: * *******************************************************************************/ MV_U32 mvPciRealIfNumGet(MV_U32 pciIf) { PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { return (pciIf - MV_PCI_START_IF); } else if (PCI_IF_TYPE_PEX == pciIfType) { return (pciIf - MV_PEX_START_IF); } else { mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); } return 0xffffffff; }