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[/] [ao486/] [trunk/] [syn/] [soc/] [firmware/] [exe_bsp/] [HAL/] [inc/] [sys/] [alt_flash.h] - Rev 7
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#ifndef __ALT_FLASH_H__ #define __ALT_FLASH_H__ /****************************************************************************** * * * License Agreement * * * * Copyright (c) 2004 Altera Corporation, San Jose, California, USA. * * All rights reserved. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the "Software"), * * to deal in the Software without restriction, including without limitation * * the rights to use, copy, modify, merge, publish, distribute, sublicense, * * and/or sell copies of the Software, and to permit persons to whom the * * Software is furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included in * * all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * * DEALINGS IN THE SOFTWARE. * * * * This agreement shall be governed in all respects by the laws of the State * * of California and by the laws of the United States of America. * * * * Altera does not recommend, suggest or require that this reference design * * file be used in conjunction or combination with any other product. * ******************************************************************************/ /****************************************************************************** * * * THIS IS A LIBRARY READ-ONLY SOURCE FILE. DO NOT EDIT. * * * ******************************************************************************/ /****************************************************************************** * * * Alt_flash.h - User interface for flash code * * * * Use this interface to avoid being exposed to the internals of the device * * driver architecture. If you chose to use the flash driver internal * * structures we don't guarantee not to change them * * * * Author PRR * * * ******************************************************************************/ #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #include "alt_types.h" #include "alt_flash_types.h" #include "alt_flash_dev.h" #include "sys/alt_cache.h" alt_flash_fd* alt_flash_open_dev(const char* name); void alt_flash_close_dev(alt_flash_fd* fd ); /* * alt_write_flash * * Program a buffer into flash. * * This routine erases all the affected erase blocks (if necessary) * and then programs the data. However it does not read the data out first * and preserve and none overwritten data, because this would require very * large buffers on the target. If you need * that functionality use the functions below. */ static __inline__ int __attribute__ ((always_inline)) alt_write_flash( alt_flash_fd* fd, int offset, const void* src_addr, int length ) { return fd->write( fd, offset, src_addr, length ); } /* * alt_read_flash * * Read a block of flash for most flashes this is just memcpy * it's here for completeness in case we need it for some serial flash device * */ static __inline__ int __attribute__ ((always_inline)) alt_read_flash( alt_flash_fd* fd, int offset, void* dest_addr, int length ) { return fd->read( fd, offset, dest_addr, length ); } /* * alt_get_flash_info * * Return the information on the flash sectors. * */ static __inline__ int __attribute__ ((always_inline)) alt_get_flash_info( alt_flash_fd* fd, flash_region** info, int* number_of_regions) { return fd->get_info( fd, info, number_of_regions); } /* * alt_erase_flash_block * * Erase a particular erase block, pass in the offset to the start of * the block and it's size */ static __inline__ int __attribute__ ((always_inline)) alt_erase_flash_block( alt_flash_fd* fd, int offset, int length) { int ret_code; ret_code = fd->erase_block( fd, offset ); if(!ret_code) alt_dcache_flush((alt_u8*)fd->base_addr + offset, length); return ret_code; } /* * alt_write_flash_block * * Write a particular flash block, block_offset is the offset * (from the base of flash) to start of the block * data_offset is the offset (from the base of flash) * where you wish to start programming * * NB this function DOES NOT check that you are only writing a single * block of data as that would slow down this function. * * Use alt_write_flash if you want that level of error checking. */ static __inline__ int __attribute__ ((always_inline)) alt_write_flash_block( alt_flash_fd* fd, int block_offset, int data_offset, const void *data, int length) { int ret_code; ret_code = fd->write_block( fd, block_offset, data_offset, data, length ); if(!ret_code) alt_dcache_flush((alt_u8*)fd->base_addr + data_offset, length); return ret_code; } #ifdef __cplusplus } #endif #endif /* __ALT_FLASH_H__ */
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