From 34678294fe409ae891d561c00fc8389a045668b7 Mon Sep 17 00:00:00 2001 From: "goprife@gmail.com" Date: Mon, 2 Apr 2012 15:53:34 +0000 Subject: git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2014 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- .../uffs/src/example/flash-interface-example.c | 402 --------------------- 1 file changed, 402 deletions(-) delete mode 100644 components/dfs/filesystems/uffs/src/example/flash-interface-example.c (limited to 'components/dfs/filesystems/uffs/src/example/flash-interface-example.c') diff --git a/components/dfs/filesystems/uffs/src/example/flash-interface-example.c b/components/dfs/filesystems/uffs/src/example/flash-interface-example.c deleted file mode 100644 index 7130f6fc5a..0000000000 --- a/components/dfs/filesystems/uffs/src/example/flash-interface-example.c +++ /dev/null @@ -1,402 +0,0 @@ -/* - This file is part of UFFS, the Ultra-low-cost Flash File System. - - Copyright (C) 2005-2009 Ricky Zheng - - UFFS is free software; you can redistribute it and/or modify it under - the GNU Library General Public License as published by the Free Software - Foundation; either version 2 of the License, or (at your option) any - later version. - - UFFS is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - or GNU Library General Public License, as applicable, for more details. - - You should have received a copy of the GNU General Public License - and GNU Library General Public License along with UFFS; if not, write - to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. - - As a special exception, if other files instantiate templates or use - macros or inline functions from this file, or you compile this file - and link it with other works to produce a work based on this file, - this file does not by itself cause the resulting work to be covered - by the GNU General Public License. However the source code for this - file must still be made available in accordance with section (3) of - the GNU General Public License v2.my_application_main_entry - - This exception does not invalidate any other reasons why a work based - on this file might be covered by the GNU General Public License. -*/ -/** - * \file flash-interface-example.c - * \brief example for using flash driver and multiple partitions, with static memory allocator. - * \author Ricky Zheng, created at 27 Nov, 2007 - */ - -#include - -#include "uffs/uffs_device.h" -#include "uffs/uffs_flash.h" -#include "uffs/uffs_mtb.h" -#include "uffs/uffs_fs.h" - -#define PFX "nand-drv:" - -struct my_nand_chip { - void *IOR_ADDR; - void *IOW_ADDR; - UBOOL inited; - // ... -}; - -/* - * Standard NAND flash commands - */ -#define NAND_CMD_READ0 0 -#define NAND_CMD_READ1 1 -#define NAND_CMD_RNDOUT 5 -#define NAND_CMD_PAGEPROG 0x10 -#define NAND_CMD_READOOB 0x50 -#define NAND_CMD_ERASE1 0x60 -#define NAND_CMD_STATUS 0x70 -#define NAND_CMD_STATUS_MULTI 0x71 -#define NAND_CMD_SEQIN 0x80 -#define NAND_CMD_RNDIN 0x85 -#define NAND_CMD_READID 0x90 -#define NAND_CMD_ERASE2 0xd0 -#define NAND_CMD_RESET 0xff - - -/* impelent the following functions for your NAND flash */ -#define CHIP_SET_CLE(chip) {} -#define CHIP_CLR_CLE(chip) {} -#define CHIP_SET_ALE(chip) {} -#define CHIP_CLR_ALE(chip) {} -#define CHIP_SET_NCS(chip) {} -#define CHIP_CLR_NCS(chip) {} -#define CHIP_BUSY(chip) {} -#define CHIP_READY(chip) {} -#define WRITE_COMMAND(chip, cmd) {} -#define WRITE_DATA_ADDR(chip, block, page, offset) {} -#define WRITE_ERASE_ADDR(chip, block) {} -#define WRITE_DATA(chip, data, len) {} -#define READ_DATA(chip, data, len) {} - -#define PARSE_STATUS(v) (UFFS_FLASH_NO_ERR) // parse status to UFFS_FLASH_NO_ERR or UFFS_FLASH_BAD_BLK - - - -#if CONFIG_USE_STATIC_MEMORY_ALLOCATOR == 0 -int main() -{ - uffs_Perror(UFFS_ERR_NORMAL, "This example need CONFIG_USE_STATIC_MEMORY_ALLOCATOR = 1"); - return 0; -} -#else - - -static int nand_read_page(uffs_Device *dev, u32 block, u32 page, u8 *data, int data_len, u8 *ecc, - u8 *spare, int spare_len) -{ - u8 val = 0; - int ret = UFFS_FLASH_NO_ERR; - struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private; - - CHIP_CLR_NCS(chip); - if (data && data_len > 0) { - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_READ0); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_DATA_ADDR(chip, block, page, 0); - CHIP_CLR_ALE(chip); - READ_DATA(chip, data, data_len); - - // for now, we return all 0xFF to pass UFFS mount, you should remove this at your driver - memset(data, 0xFF, data_len); - } - - if (spare && spare_len > 0) { - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_READOOB); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size); - CHIP_CLR_ALE(chip); - READ_DATA(chip, spare, spare_len); - - // for now, we return all 0xFF to pass UFFS mount, you should remove this at your driver - memset(spare, 0xFF, spare_len); - } - - if (data == NULL && spare == NULL) { - // read bad block mark - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_READOOB); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size + attr->block_status_offs); - CHIP_CLR_ALE(chip); - READ_DATA(chip, &val, 1); - ret = (val == 0xFF ? UFFS_FLASH_NO_ERR : UFFS_FLASH_BAD_BLK); - - // for now, we return UFFS_FLASH_NO_ERR to pass UFFS mount, you should remove this at your driver - ret = UFFS_FLASH_NO_ERR; - } - - CHIP_SET_NCS(chip); - - return ret; -} - -static int nand_write_page(uffs_Device *dev, u32 block, u32 page, - const u8 *data, int data_len, const u8 *spare, int spare_len) -{ - u8 val = 0; - int ret = UFFS_FLASH_NO_ERR; - UBOOL fall_through = FALSE; - struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private; - - CHIP_CLR_NCS(chip); - - if (data && data_len > 0) { - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_READ0); - WRITE_COMMAND(chip, NAND_CMD_SEQIN); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_DATA_ADDR(chip, block, page, 0); - CHIP_CLR_ALE(chip); - CHIP_BUSY(chip); - WRITE_DATA(chip, data, data_len); - if (data_len == dev->attr->page_data_size) - fall_through = U_TRUE; - else { - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_PAGEPROG); - WRITE_COMMAND(chip, NAND_CMD_STATUS); - CHIP_CLR_CLE(chip); - CHIP_READY(chip); - READ_DATA(chip, &val, 1); - ret = PARSE_STATUS(val); - } - } - - if (ret != UFFS_FLASH_NO_ERR) - goto ext; - - if (spare && spare_len > 0) { - if (!fall_through) { - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_READOOB); - WRITE_COMMAND(chip, NAND_CMD_SEQIN); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size); - CHIP_CLR_ALE(chip); - CHIP_BUSY(chip); - } - WRITE_DATA(chip, spare, spare_len); - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_PAGEPROG); - WRITE_COMMAND(chip, NAND_CMD_STATUS); - CHIP_CLR_CLE(chip); - CHIP_READY(chip); - READ_DATA(chip, &val, 1); - ret = PARSE_STATUS(val); - } - - if (data == NULL && spare == NULL) { - // mark bad block - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_READOOB); - WRITE_COMMAND(chip, NAND_CMD_SEQIN); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_DATA_ADDR(chip, block, page, dev->attr->page_data_size + attr->block_status_offs); - CHIP_CLR_ALE(chip); - CHIP_BUSY(chip); - val = 0; - WRITE_DATA(chip, &val, 1); - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_PAGEPROG); - WRITE_COMMAND(chip, NAND_CMD_STATUS); - CHIP_CLR_CLE(chip); - CHIP_READY(chip); - READ_DATA(chip, &val, 1); - ret = PARSE_STATUS(val); - } - -ext: - CHIP_SET_NCS(chip); - - return ret; -} - -static int nand_erase_block(uffs_Device *dev, u32 block) -{ - u8 val; - struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private; - - CHIP_CLR_NCS(chip); - - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_ERASE1); - CHIP_CLR_CLE(chip); - CHIP_SET_ALE(chip); - WRITE_ERASE_ADDR(chip, blcok); - CHIP_CLR_ALE(chip); - CHIP_SET_CLE(chip); - WRITE_COMMAND(chip, NAND_CMD_ERASE2); - WRITE_COMMAND(chip, NAND_CMD_STATUS); - CHIP_CLR_CLE(chip); - CHIP_READY(chip); - READ_DATA(chip, &val, 1); - - CHIP_SET_NCS(chip); - - return PARSE_STATUS(val); -} - - -static int nand_init_flash(uffs_Device *dev) -{ - // initialize your hardware here ... - struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private; - - if (!chip->inited) { - // setup chip I/O address, setup NAND flash controller ... etc. - // chip->IOR_ADDR = 0xF0000000 - // chip->IOW_ADDR = 0xF0000000 - chip->inited = U_TRUE; - } - return 0; -} - -static int nand_release_flash(uffs_Device *dev) -{ - // release your hardware here - struct my_nand_chip *chip = (struct my_nand_chip *) dev->attr->_private; - - return 0; -} - -static uffs_FlashOps g_my_nand_ops = { - nand_init_flash, // InitFlash() - nand_release_flash, // ReleaseFlash() - nand_read_page, // ReadPage() - NULL, // ReadPageWithLayout - nand_write_page, // WritePage() - NULL, // WirtePageWithLayout - NULL, // IsBadBlock(), let UFFS take care of it. - NULL, // MarkBadBlock(), let UFFS take care of it. - nand_erase_block, // EraseBlock() -}; - -///////////////////////////////////////////////////////////////////////////////// - -// change these parameters to fit your nand flash specification - -#define TOTAL_BLOCKS 1024 -#define PAGE_DATA_SIZE 512 -#define PAGE_SPARE_SIZE 16 -#define PAGES_PER_BLOCK 32 -#define PAGE_SIZE (PAGE_DATA_SIZE + PAGE_SPARE_SIZE) -#define BLOCK_DATA_SIZE (PAGE_DATA_SIZE * PAGES_PER_BLOCK) - -#define NR_PARTITION 2 /* total partitions */ -#define PAR_1_BLOCKS 100 /* partition 1 */ -#define PAR_2_BLOCKS (TOTAL_BLOCKS - PAR_1_BLOCKS) /* partition 2 */ - -struct my_nand_chip g_nand_chip = {0}; -static struct uffs_StorageAttrSt g_my_flash_storage = {0}; - -/* define mount table */ -static uffs_Device demo_device_1 = {0}; -static uffs_Device demo_device_2 = {0}; - -static uffs_MountTable demo_mount_table[] = { - { &demo_device_1, 0, PAR_1_BLOCKS - 1, "/data/" }, - { &demo_device_2, PAR_1_BLOCKS, PAR_1_BLOCKS + PAR_2_BLOCKS - 1, "/" }, - { NULL, 0, 0, NULL } -}; - -/* static alloc the memory for each partition */ -static int static_buffer_par1[UFFS_STATIC_BUFF_SIZE(PAGES_PER_BLOCK, PAGE_SIZE, PAR_1_BLOCKS) / sizeof(int)]; -static int static_buffer_par2[UFFS_STATIC_BUFF_SIZE(PAGES_PER_BLOCK, PAGE_SIZE, PAR_2_BLOCKS) / sizeof(int)];; - -static void init_nand_chip(struct my_nand_chip *chip) -{ - // init chip IO address, etc. -} - -static void setup_flash_storage(struct uffs_StorageAttrSt *attr) -{ - memset(attr, 0, sizeof(struct uffs_StorageAttrSt)); - - attr->total_blocks = TOTAL_BLOCKS; /* total blocks */ - attr->page_data_size = PAGE_DATA_SIZE; /* page data size */ - attr->pages_per_block = PAGES_PER_BLOCK; /* pages per block */ - attr->spare_size = PAGE_SPARE_SIZE; /* page spare size */ - attr->block_status_offs = 4; /* block status offset is 5th byte in spare */ - attr->ecc_opt = UFFS_ECC_SOFT; /* ecc option */ - attr->layout_opt = UFFS_LAYOUT_UFFS; /* let UFFS do the spare layout */ -} - -static URET my_InitDevice(uffs_Device *dev) -{ - dev->attr = &g_my_flash_storage; - dev->attr->_private = (void *) &g_nand_chip; // hook nand_chip data structure to attr->_private - dev->ops = &g_my_nand_ops; - - return U_SUCC; -} - -static URET my_ReleaseDevice(uffs_Device *dev) -{ - return U_SUCC; -} - - -static int my_init_filesystem(void) -{ - uffs_MountTable *mtbl = &(demo_mount_table[0]); - - /* setup nand storage attributes */ - setup_flash_storage(&g_my_flash_storage); - - /* setup memory allocator */ - uffs_MemSetupStaticAllocator(&demo_device_1.mem, static_buffer_par1, sizeof(static_buffer_par1)); - uffs_MemSetupStaticAllocator(&demo_device_2.mem, static_buffer_par2, sizeof(static_buffer_par2)); - - /* register mount table */ - while(mtbl->dev) { - // setup device init/release entry - mtbl->dev->Init = my_InitDevice; - mtbl->dev->Release = my_ReleaseDevice; - uffs_RegisterMountTable(mtbl); - mtbl++; - } - - return uffs_InitMountTable() == U_SUCC ? 0 : -1; -} - -/* application entry */ -int main() -{ - my_init_filesystem(); - - // ... my application codes .... - // read/write/create/delete files ... - - uffs_ReleaseMountTable(); - - return 0; -} - -#endif - - -///////////////////////////////////////////////////////////////////////////////// -- cgit v1.3.1