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109 lines
2.7 KiB
109 lines
2.7 KiB
/**\file
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* This file defines the wrapper for the platform/OS related functions
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* The function definitions needs to be modified according to the platform
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* and the Operating system used.
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* This file should be handled with greatest care while porting the driver
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* to a different platform running different operating system other than
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* Linux 2.6.xx.
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* \internal
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* ----------------------------REVISION HISTORY-----------------------------
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* Synopsys 01/Aug/2007 Created
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*/
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#include "synopGMAC_plat.h"
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/**
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* This is a wrapper function for Memory allocation routine. In linux Kernel
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* it it kmalloc function
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* @param[in] bytes in bytes to allocate
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*/
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#if defined(LOONGSON_2G1A)
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dma_addr_t __attribute__((weak)) gmac_dmamap(unsigned long va,size_t size)
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{
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return va;
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}
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#endif
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void *plat_alloc_memory(u32 bytes)
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{
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return (void*)malloc((size_t)bytes, M_DEVBUF, M_DONTWAIT);
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}
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/**
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* This is a wrapper function for consistent dma-able Memory allocation routine.
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* In linux Kernel, it depends on pci dev structure
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* @param[in] bytes in bytes to allocate
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*/
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#if defined(LOONGSON_2G1A)
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void *plat_alloc_consistent_dmaable_memory(u32 size, u32 *addr)
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{
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void *buf;
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buf = (void*)malloc((size_t)size, M_DEVBUF, M_DONTWAIT);
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CPU_IOFlushDCache( buf,size, SYNC_W);
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*addr =gmac_dmamap(buf,size);
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buf = (unsigned char *)CACHED_TO_UNCACHED(buf);
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return buf;
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}
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#endif
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//sw to-be clean
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/*
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void *plat_alloc_consistent_dmaable_memory(struct pci_dev *pcidev, u32 size, u32 *addr)
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{
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return (pci_alloc_consistent (pcidev,size,addr));
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}
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*/
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/**
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* This is a wrapper function for freeing consistent dma-able Memory.
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* In linux Kernel, it depends on pci dev structure
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* @param[in] bytes in bytes to allocate
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*/
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//sw to-be clean
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/*
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void plat_free_consistent_dmaable_memory(struct pci_dev *pcidev, u32 size, void * addr,u32 dma_addr)
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{
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pci_free_consistent (pcidev,size,addr,dma_addr);
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return;
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}
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*/
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/**
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* This is a wrapper function for Memory free routine. In linux Kernel
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* it it kfree function
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* @param[in] buffer pointer to be freed
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*/
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void plat_free_memory(void *buffer)
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{
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free(buffer,M_DEVBUF);
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return ;
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}
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#if defined(LOONGSON_2G1A)
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dma_addr_t plat_dma_map_single(void *hwdev, void *ptr,
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size_t size, int direction)
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{
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unsigned long addr = (unsigned long) ptr;
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CPU_IOFlushDCache(addr,size, direction);
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return gmac_dmamap(addr,size);
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}
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#endif
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/**
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* This is a wrapper function for platform dependent delay
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* Take care while passing the argument to this function
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* @param[in] buffer pointer to be freed
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*/
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void plat_delay(u32 delay)
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{
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while (delay--);
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return;
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}
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