+++ /dev/null
-/**
- * @file IxOsalIoMem.c
- *
- * @brief OS-independent IO/Mem implementation
- *
- *
- * @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 --
- */
-
-/* Access to the global mem map is only allowed in this file */
-#define IxOsalIoMem_C
-
-#include "IxOsal.h"
-
-#define SEARCH_PHYSICAL_ADDRESS (1)
-#define SEARCH_VIRTUAL_ADDRESS (2)
-
-/*
- * Searches for map using one of the following criteria:
- *
- * - enough room to include a zone starting with the physical "requestedAddress" of size "size" (for mapping)
- * - includes the virtual "requestedAddress" in its virtual address space (already mapped, for unmapping)
- * - correct coherency
- *
- * Returns a pointer to the map or NULL if a suitable map is not found.
- */
-PRIVATE IxOsalMemoryMap *
-ixOsalMemMapFind (UINT32 requestedAddress,
- UINT32 size, UINT32 searchCriteria, UINT32 requestedEndianType)
-{
- UINT32 mapIndex;
-
- UINT32 numMapElements =
- sizeof (ixOsalGlobalMemoryMap) / sizeof (IxOsalMemoryMap);
-
- for (mapIndex = 0; mapIndex < numMapElements; mapIndex++)
- {
- IxOsalMemoryMap *map = &ixOsalGlobalMemoryMap[mapIndex];
-
- if (searchCriteria == SEARCH_PHYSICAL_ADDRESS
- && requestedAddress >= map->physicalAddress
- && (requestedAddress + size) <= (map->physicalAddress + map->size)
- && (map->mapEndianType & requestedEndianType) != 0)
- {
- return map;
- }
- else if (searchCriteria == SEARCH_VIRTUAL_ADDRESS
- && requestedAddress >= map->virtualAddress
- && requestedAddress <= (map->virtualAddress + map->size)
- && (map->mapEndianType & requestedEndianType) != 0)
- {
- return map;
- }
- else if (searchCriteria == SEARCH_PHYSICAL_ADDRESS)
- {
- ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
- IX_OSAL_LOG_DEV_STDOUT,
- "Osal: Checking [phys addr 0x%x:size 0x%x:endianType %d]\n",
- map->physicalAddress, map->size, map->mapEndianType, 0, 0, 0);
- }
- }
-
- /*
- * not found
- */
- return NULL;
-}
-
-/*
- * 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 ixOsalMemUnmap 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.
- *
- * Note: this function is not to be used directly. Use IX_OSAL_MEM_MAP
- * instead.
- */
-PUBLIC void *
-ixOsalIoMemMap (UINT32 requestedAddress,
- UINT32 size, IxOsalMapEndianessType requestedEndianType)
-{
- IxOsalMemoryMap *map;
-
- ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
- IX_OSAL_LOG_DEV_STDOUT,
- "OSAL: Mapping [addr 0x%x:size 0x%x:endianType %d]\n",
- requestedAddress, size, requestedEndianType, 0, 0, 0);
-
- if (requestedEndianType == IX_OSAL_LE)
- {
- ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
- IX_OSAL_LOG_DEV_STDOUT,
- "ixOsalIoMemMap: Please specify component coherency mode to use MEM functions \n",
- 0, 0, 0, 0, 0, 0);
- return (NULL);
- }
- map = ixOsalMemMapFind (requestedAddress,
- size, SEARCH_PHYSICAL_ADDRESS, requestedEndianType);
- if (map != NULL)
- {
- UINT32 offset = requestedAddress - map->physicalAddress;
-
- ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
- IX_OSAL_LOG_DEV_STDOUT, "OSAL: Found map [", 0, 0, 0, 0, 0, 0);
- ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
- IX_OSAL_LOG_DEV_STDOUT, map->name, 0, 0, 0, 0, 0, 0);
- ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
- IX_OSAL_LOG_DEV_STDOUT,
- ":addr 0x%x: virt 0x%x:size 0x%x:ref %d:endianType %d]\n",
- map->physicalAddress, map->virtualAddress,
- map->size, map->refCount, map->mapEndianType, 0);
-
- if (map->type == IX_OSAL_DYNAMIC_MAP && map->virtualAddress == 0)
- {
- if (map->mapFunction != NULL)
- {
- map->mapFunction (map);
-
- if (map->virtualAddress == 0)
- {
- /*
- * failed
- */
- ixOsalLog (IX_OSAL_LOG_LVL_FATAL,
- IX_OSAL_LOG_DEV_STDERR,
- "OSAL: Remap failed - [addr 0x%x:size 0x%x:endianType %d]\n",
- requestedAddress, size, requestedEndianType, 0, 0, 0);
- return NULL;
- }
- }
- else
- {
- /*
- * error, no map function for a dynamic map
- */
- ixOsalLog (IX_OSAL_LOG_LVL_FATAL,
- IX_OSAL_LOG_DEV_STDERR,
- "OSAL: No map function for a dynamic map - "
- "[addr 0x%x:size 0x%x:endianType %d]\n",
- requestedAddress, size, requestedEndianType, 0, 0, 0);
-
- return NULL;
- }
- }
-
- /*
- * increment reference count
- */
- map->refCount++;
-
- return (void *) (map->virtualAddress + offset);
- }
-
- /*
- * requested address is not described in the global memory map
- */
- ixOsalLog (IX_OSAL_LOG_LVL_FATAL,
- IX_OSAL_LOG_DEV_STDERR,
- "OSAL: No mapping found - [addr 0x%x:size 0x%x:endianType %d]\n",
- requestedAddress, size, requestedEndianType, 0, 0, 0);
- return NULL;
-}
-
-/*
- * 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.
- *
- * Note: this function is not to be used directly. Use IX_OSAL_MEM_UNMAP
- * instead.
- */
-PUBLIC void
-ixOsalIoMemUnmap (UINT32 requestedAddress, UINT32 endianType)
-{
- IxOsalMemoryMap *map;
-
- if (endianType == IX_OSAL_LE)
- {
- ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
- IX_OSAL_LOG_DEV_STDOUT,
- "ixOsalIoMemUnmap: Please specify component coherency mode to use MEM functions \n",
- 0, 0, 0, 0, 0, 0);
- return;
- }
-
- if (requestedAddress == 0)
- {
- /*
- * invalid virtual address
- */
- return;
- }
-
- map =
- ixOsalMemMapFind (requestedAddress, 0, SEARCH_VIRTUAL_ADDRESS,
- endianType);
-
- if (map != NULL)
- {
- if (map->refCount > 0)
- {
- /*
- * decrement reference count
- */
- map->refCount--;
-
- if (map->refCount == 0)
- {
- /*
- * no longer used, deallocate
- */
- if (map->type == IX_OSAL_DYNAMIC_MAP
- && map->unmapFunction != NULL)
- {
- map->unmapFunction (map);
- }
- }
- }
- }
- else
- {
- ixOsalLog (IX_OSAL_LOG_LVL_WARNING,
- IX_OSAL_LOG_DEV_STDERR,
- "OSAL: ixOsServMemUnmap didn't find the requested map "
- "[virt addr 0x%x: endianType %d], ignoring call\n",
- requestedAddress, endianType, 0, 0, 0, 0);
- }
-}
-
-/*
- * This function Converts a virtual address into a physical
- * address, including the dynamically mapped memory.
- *
- * Parameters virtAddr - virtual address to convert
- * Return value: corresponding physical address, or NULL
- * if there is no physical address addressable
- * by the given virtual address
- * OS: VxWorks, Linux, WinCE, QNX, eCos
- * Reentrant: Yes
- * IRQ safe: Yes
- */
-PUBLIC UINT32
-ixOsalIoMemVirtToPhys (UINT32 virtualAddress, UINT32 requestedCoherency)
-{
- IxOsalMemoryMap *map =
- ixOsalMemMapFind (virtualAddress, 0, SEARCH_VIRTUAL_ADDRESS,
- requestedCoherency);
-
- if (map != NULL)
- {
- return map->physicalAddress + virtualAddress - map->virtualAddress;
- }
- else
- {
- return (UINT32) IX_OSAL_MMU_VIRT_TO_PHYS (virtualAddress);
- }
-}
-
-/*
- * This function Converts a virtual address into a physical
- * address, including the dynamically mapped memory.
- *
- * Parameters virtAddr - virtual address to convert
- * Return value: corresponding physical address, or NULL
- * if there is no physical address addressable
- * by the given virtual address
- * OS: VxWorks, Linux, WinCE, QNX, eCos
- * Reentrant: Yes
- * IRQ safe: Yes
- */
-PUBLIC UINT32
-ixOsalIoMemPhysToVirt (UINT32 physicalAddress, UINT32 requestedCoherency)
-{
- IxOsalMemoryMap *map =
- ixOsalMemMapFind (physicalAddress, 0, SEARCH_PHYSICAL_ADDRESS,
- requestedCoherency);
-
- if (map != NULL)
- {
- return map->virtualAddress + physicalAddress - map->physicalAddress;
- }
- else
- {
- return (UINT32) IX_OSAL_MMU_PHYS_TO_VIRT (physicalAddress);
- }
-}
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