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+/*
+ * @file IxOsalIoMem.h
+ * @author Intel Corporation
+ * @date 25-08-2004
+ *
+ * @brief description goes here
+ */
+
+/**
+ * @par
+ * IXP400 SW Release version 2.0
+ *
+ * -- Copyright Notice --
+ *
+ * @par
+ * Copyright 2001-2005, Intel Corporation.
+ * All rights reserved.
+ *
+ * @par
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * @par
+ * 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.
+ *
+ * @par
+ * -- End of Copyright Notice --
+ */
+
+#ifndef IxOsalIoMem_H
+#define IxOsalIoMem_H
+
+
+/*
+ * Decide OS and Endianess, such as IX_OSAL_VXWORKS_LE.
+ */
+#include "IxOsalEndianess.h"
+
+/**
+ * @defgroup IxOsalIoMem Osal IoMem module
+ *
+ * @brief I/O memory and endianess support.
+ *
+ * @{
+ */
+
+/* Low-level conversion macros - DO NOT USE UNLESS ABSOLUTELY NEEDED */
+#ifndef __wince
+
+
+/*
+ * Private function to swap word
+ */
+#ifdef __XSCALE__
+static __inline__ UINT32
+ixOsalCoreWordSwap (UINT32 wordIn)
+{
+ /*
+ * Storage for the swapped word
+ */
+ UINT32 wordOut;
+
+ /*
+ * wordIn = A, B, C, D
+ */
+ __asm__ (" eor r1, %1, %1, ror #16;" /* R1 = A^C, B^D, C^A, D^B */
+ " bic r1, r1, #0x00ff0000;" /* R1 = A^C, 0 , C^A, D^B */
+ " mov %0, %1, ror #8;" /* wordOut = D, A, B, C */
+ " eor %0, %0, r1, lsr #8;" /* wordOut = D, C, B, A */
+ : "=r" (wordOut): "r" (wordIn):"r1");
+
+ return wordOut;
+}
+
+#define IX_OSAL_SWAP_LONG(wData) (ixOsalCoreWordSwap(wData))
+#else
+#define IX_OSAL_SWAP_LONG(wData) ((wData >> 24) | (((wData >> 16) & 0xFF) << 8) | (((wData >> 8) & 0xFF) << 16) | ((wData & 0xFF) << 24))
+#endif
+
+#else /* ndef __wince */
+#define IX_OSAL_SWAP_LONG(wData) ((((UINT32)wData << 24) | ((UINT32)wData >> 24)) | (((wData << 8) & 0xff0000) | ((wData >> 8) & 0xff00)))
+#endif /* ndef __wince */
+
+#define IX_OSAL_SWAP_SHORT(sData) ((sData >> 8) | ((sData & 0xFF) << 8))
+#define IX_OSAL_SWAP_SHORT_ADDRESS(sAddr) ((sAddr) ^ 0x2)
+#define IX_OSAL_SWAP_BYTE_ADDRESS(bAddr) ((bAddr) ^ 0x3)
+
+#define IX_OSAL_BE_XSTOBUSL(wData) (wData)
+#define IX_OSAL_BE_XSTOBUSS(sData) (sData)
+#define IX_OSAL_BE_XSTOBUSB(bData) (bData)
+#define IX_OSAL_BE_BUSTOXSL(wData) (wData)
+#define IX_OSAL_BE_BUSTOXSS(sData) (sData)
+#define IX_OSAL_BE_BUSTOXSB(bData) (bData)
+
+#define IX_OSAL_LE_AC_XSTOBUSL(wAddr) (wAddr)
+#define IX_OSAL_LE_AC_XSTOBUSS(sAddr) IX_OSAL_SWAP_SHORT_ADDRESS(sAddr)
+#define IX_OSAL_LE_AC_XSTOBUSB(bAddr) IX_OSAL_SWAP_BYTE_ADDRESS(bAddr)
+#define IX_OSAL_LE_AC_BUSTOXSL(wAddr) (wAddr)
+#define IX_OSAL_LE_AC_BUSTOXSS(sAddr) IX_OSAL_SWAP_SHORT_ADDRESS(sAddr)
+#define IX_OSAL_LE_AC_BUSTOXSB(bAddr) IX_OSAL_SWAP_BYTE_ADDRESS(bAddr)
+
+#define IX_OSAL_LE_DC_XSTOBUSL(wData) IX_OSAL_SWAP_LONG(wData)
+#define IX_OSAL_LE_DC_XSTOBUSS(sData) IX_OSAL_SWAP_SHORT(sData)
+#define IX_OSAL_LE_DC_XSTOBUSB(bData) (bData)
+#define IX_OSAL_LE_DC_BUSTOXSL(wData) IX_OSAL_SWAP_LONG(wData)
+#define IX_OSAL_LE_DC_BUSTOXSS(sData) IX_OSAL_SWAP_SHORT(sData)
+#define IX_OSAL_LE_DC_BUSTOXSB(bData) (bData)
+
+
+/*
+ * Decide SDRAM mapping, then implement read/write
+ */
+#include "IxOsalMemAccess.h"
+
+
+/**
+ * @ingroup IxOsalIoMem
+ * @enum IxOsalMapEntryType
+ * @brief This is an emum for OSAL I/O mem map type.
+ */
+typedef enum
+{
+ IX_OSAL_STATIC_MAP = 0, /**<Set map entry type to static map */
+ IX_OSAL_DYNAMIC_MAP /**<Set map entry type to dynamic map */
+} IxOsalMapEntryType;
+
+
+/**
+ * @ingroup IxOsalIoMem
+ * @enum IxOsalMapEndianessType
+ * @brief This is an emum for OSAL I/O mem Endianess and Coherency mode.
+ */
+typedef enum
+{
+ IX_OSAL_BE = 0x1, /**<Set map endian mode to Big Endian */
+ IX_OSAL_LE_AC = 0x2, /**<Set map endian mode to Little Endian, Address Coherent */
+ IX_OSAL_LE_DC = 0x4, /**<Set map endian mode to Little Endian, Data Coherent */
+ IX_OSAL_LE = 0x8 /**<Set map endian mode to Little Endian without specifying coherency mode */
+} IxOsalMapEndianessType;
+
+
+/**
+ * @struct IxOsalMemoryMap
+ * @brief IxOsalMemoryMap structure
+ */
+typedef struct _IxOsalMemoryMap
+{
+ IxOsalMapEntryType type; /**< map type - IX_OSAL_STATIC_MAP or IX_OSAL_DYNAMIC_MAP */
+
+ UINT32 physicalAddress; /**< physical address of the memory mapped I/O zone */
+
+ UINT32 size; /**< size of the map */
+
+ UINT32 virtualAddress; /**< virtual address of the zone; must be predefined
+ in the global memory map for static maps and has
+ to be NULL for dynamic maps (populated on allocation)
+ */
+ /*
+ * pointer to a map function called to map a dynamic map;
+ * will populate the virtualAddress field
+ */
+ void (*mapFunction) (struct _IxOsalMemoryMap * map); /**< pointer to a map function called to map a dynamic map */
+
+ /*
+ * pointer to a map function called to unmap a dynamic map;
+ * will reset the virtualAddress field to NULL
+ */
+ void (*unmapFunction) (struct _IxOsalMemoryMap * map); /**< pointer to a map function called to unmap a dynamic map */
+
+ /*
+ * reference count describing how many components share this map;
+ * actual allocation/deallocation for dynamic maps is done only
+ * between 0 <=> 1 transitions of the counter
+ */
+ UINT32 refCount; /**< reference count describing how many components share this map */
+
+ /*
+ * memory endian type for the map; can be a combination of IX_OSAL_BE (Big
+ * Endian) and IX_OSAL_LE or IX_OSAL_LE_AC or IX_OSAL_LE_DC
+ * (Little Endian, Address Coherent or Data Coherent). Any combination is
+ * allowed provided it contains at most one LE flag - e.g.
+ * (IX_OSAL_BE), (IX_OSAL_LE_AC), (IX_OSAL_BE | IX_OSAL_LE_DC) are valid
+ * combinations while (IX_OSAL_BE | IX_OSAL_LE_DC | IX_OSAL_LE_AC) is not.
+ */
+ IxOsalMapEndianessType mapEndianType; /**< memory endian type for the map */
+
+ char *name; /**< user-friendly name */
+} IxOsalMemoryMap;
+
+
+
+
+/* Internal function to map a memory zone
+ * NOTE - This should not be called by the user.
+ * Use the macro IX_OSAL_MEM_MAP instead
+ */
+PUBLIC void *ixOsalIoMemMap (UINT32 requestedAddress,
+ UINT32 size,
+ IxOsalMapEndianessType requestedCoherency);
+
+
+/* Internal function to unmap a memory zone mapped with ixOsalIoMemMap
+ * NOTE - This should not be called by the user.
+ * Use the macro IX_OSAL_MEM_UNMAP instead
+ */
+PUBLIC void ixOsalIoMemUnmap (UINT32 requestedAddress, UINT32 coherency);
+
+
+/* Internal function to convert virtual address to physical address
+ * NOTE - This should not be called by the user.
+ * Use the macro IX_OSAL_MMAP_VIRT_TO_PHYS */
+PUBLIC UINT32 ixOsalIoMemVirtToPhys (UINT32 virtualAddress, UINT32 coherency);
+
+
+/* Internal function to convert physical address to virtual address
+ * NOTE - This should not be called by the user.
+ * Use the macro IX_OSAL_MMAP_PHYS_TO_VIRT */
+PUBLIC UINT32
+ixOsalIoMemPhysToVirt (UINT32 physicalAddress, UINT32 coherency);
+
+/**
+ * @ingroup IxOsalIoMem
+ *
+ * @def IX_OSAL_MEM_MAP(physAddr, size)
+ *
+ * @brief Map an I/O mapped physical memory zone to virtual zone and return virtual
+ * pointer.
+ * @param physAddr - the physical address
+ * @param size - the size
+ * @return start address of the virtual memory zone.
+ *
+ * @note This function maps an I/O mapped physical memory zone of the given size
+ * into a virtual memory zone accessible by the caller and returns a cookie -
+ * the start address of the virtual memory zone.
+ * IX_OSAL_MMAP_PHYS_TO_VIRT should NOT therefore be used on the returned
+ * virtual address.
+ * The memory zone is to be unmapped using IX_OSAL_MEM_UNMAP once the caller has
+ * finished using this zone (e.g. on driver unload) using the cookie as
+ * parameter.
+ * The IX_OSAL_READ/WRITE_LONG/SHORT macros should be used to read and write
+ * the mapped memory, adding the necessary offsets to the address cookie.
+ */
+#define IX_OSAL_MEM_MAP(physAddr, size) \
+ ixOsalIoMemMap((physAddr), (size), IX_OSAL_COMPONENT_MAPPING)
+
+
+/**
+ * @ingroup IxOsalIoMem
+ *
+ * @def IX_OSAL_MEM_UNMAP(virtAddr)
+ *
+ * @brief Unmap a previously mapped I/O memory zone using virtual pointer obtained
+ * during the mapping operation.
+ * pointer.
+ * @param virtAddr - the virtual pointer to the zone to be unmapped.
+ * @return none
+ *
+ * @note This function unmaps a previously mapped I/O memory zone using
+ * the cookie obtained in the mapping operation. The memory zone in question
+ * becomes unavailable to the caller once unmapped and the cookie should be
+ * discarded.
+ *
+ * This function cannot fail if the given parameter is correct and does not
+ * return a value.
+ */
+#define IX_OSAL_MEM_UNMAP(virtAddr) \
+ ixOsalIoMemUnmap ((virtAddr), IX_OSAL_COMPONENT_MAPPING)
+
+/**
+ * @ingroup IxOsalIoMem
+ *
+ * @def IX_OSAL_MMAP_VIRT_TO_PHYS(virtAddr)
+ *
+ * @brief This function Converts a virtual address into a physical
+ * address, including the dynamically mapped memory.
+ *
+ * @param virtAddr - virtual address to convert
+ * Return value: corresponding physical address, or NULL
+ */
+#define IX_OSAL_MMAP_VIRT_TO_PHYS(virtAddr) \
+ ixOsalIoMemVirtToPhys(virtAddr, IX_OSAL_COMPONENT_MAPPING)
+
+
+/**
+ * @ingroup IxOsalIoMem
+ *
+ * @def IX_OSAL_MMAP_PHYS_TO_VIRT(physAddr)
+ *
+ * @brief This function Converts a virtual address into a physical
+ * address, including the dynamically mapped memory.
+ *
+ * @param physAddr - physical address to convert
+ * Return value: corresponding virtual address, or NULL
+ *
+ */
+#define IX_OSAL_MMAP_PHYS_TO_VIRT(physAddr) \
+ ixOsalIoMemPhysToVirt(physAddr, IX_OSAL_COMPONENT_MAPPING)
+
+/**
+ * @} IxOsalIoMem
+ */
+
+#endif /* IxOsalIoMem_H */