cfs-coffee-arch.h

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00001 /*
00002  * Copyright (c) 2008, Swedish Institute of Computer Science
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * This file is part of the Contiki operating system.
00030  *
00031  */
00032 
00033 /**
00034  * \file
00035  *  Coffee architecture-dependent header for the AVR-Raven 1284p platform.
00036  *  The 1284p has 4KB of onboard EEPROM and 128KB of program flash.
00037  * \author
00038  *  Frederic Thepaut <frederic.thepaut@inooi.com>
00039  *  David Kopf <dak664@embarqmail.com>
00040  */
00041 
00042 #ifndef CFS_COFFEE_ARCH_H
00043 #define CFS_COFFEE_ARCH_H
00044 
00045 #include "contiki-conf.h"
00046 
00047 //Currently you may choose just one of the following for the coffee file sytem
00048 //A static file sysstem allows file rewrites but no extensions or new files
00049 //This allows a static linked list to index into the file system
00050 #if COFFEE_FILES==1             //1=eeprom for static file system
00051 #define COFFEE_AVR_EEPROM 1
00052 #define COFFEE_STATIC     1
00053 #elif COFFEE_FILES==2           //2=eeprom for full file system
00054 #define COFFEE_AVR_EEPROM 1
00055 #elif COFFEE_FILES==3           //3=program flash for static file system
00056 #define COFFEE_AVR_FLASH  1
00057 #define COFFEE_STATIC     1
00058 #else                           //4=program flash with full file system
00059 #define COFFEE_AVR_FLASH  1
00060 #endif
00061 
00062 #ifdef COFFEE_AVR_EEPROM
00063 #include "dev/eeprom.h"
00064 //1284p EEPROM has 512 pages of 8 bytes each = 4KB
00065 
00066 #if COFFEE_ADDRESS==DEFAULT       //Make can pass starting address with COFFEE_ADDRESS=0xnnnnnnnn
00067 #undef COFFEE_ADDRESS
00068 #ifdef CFS_EEPROM_CONF_OFFSET     //Else use the platform default
00069 #define COFFEE_ADDRESS            CFS_EEPROM_CONF_OFFSET
00070 #else                             //Use zero if no default defined
00071 #define COFFEE_ADDRESS            0
00072 #endif
00073 #endif
00074 
00075 /* Byte page size, starting address, and size of the file system */
00076 #define COFFEE_PAGE_SIZE          16UL
00077 #define COFFEE_START              COFFEE_ADDRESS
00078 #define COFFEE_SIZE               ((3 * 1024U) - COFFEE_START)
00079 /* These must agree with the parameters passed to makefsdata */
00080 #define COFFEE_SECTOR_SIZE        (COFFEE_PAGE_SIZE*4)
00081 #define COFFEE_NAME_LENGTH        16
00082 /* These are used internally by the coffee file system */
00083 #define COFFEE_MAX_OPEN_FILES     4
00084 #define COFFEE_FD_SET_SIZE        8
00085 #define COFFEE_LOG_TABLE_LIMIT    16
00086 #define COFFEE_DYN_SIZE           (COFFEE_PAGE_SIZE * 4)
00087 #define COFFEE_LOG_SIZE           128
00088 
00089 typedef int16_t coffee_page_t;
00090 typedef uint16_t coffee_offset_t;
00091 
00092 #define COFFEE_ERASE(sector) avr_eeprom_erase(sector)
00093 void avr_eeprom_erase(uint16_t sector);
00094 
00095 #define COFFEE_WRITE(buf, size, offset) \
00096         eeprom_write(COFFEE_START + (offset), (unsigned char *)(buf), (size))
00097 
00098 #define COFFEE_READ(buf, size, offset) \
00099         eeprom_read (COFFEE_START + (offset), (unsigned char *)(buf), (size))
00100 
00101 #endif /* COFFEE_AVR_EEPROM */
00102 
00103 #ifdef COFFEE_AVR_FLASH
00104 /* 1284p PROGMEM has 512 pages of 256 bytes each = 128KB
00105  * Writing to the last 32 NRRW pages will halt the CPU.
00106  * Take care not to overwrite the .bootloader section...
00107  */
00108 
00109 /* Byte page size, starting address on page boundary, and size of the file system */
00110 #define COFFEE_PAGE_SIZE          (2*SPM_PAGESIZE)
00111 #ifndef COFFEE_ADDRESS            //Make can pass starting address with COFFEE_ADDRESS=0xnnnnnnnn, default is 64KB for webserver
00112 #define COFFEE_ADDRESS            0x10000
00113 #endif
00114 #define COFFEE_PAGES              (512-(COFFEE_ADDRESS/COFFEE_PAGE_SIZE)-32)
00115 #define COFFEE_START              (COFFEE_ADDRESS & ~(COFFEE_PAGE_SIZE-1))
00116 //#define COFFEE_START            (COFFEE_PAGE_SIZE*COFFEE_PAGES) 
00117 #define COFFEE_SIZE               (COFFEE_PAGES*COFFEE_PAGE_SIZE)
00118 
00119 /* These must agree with the parameters passed to makefsdata */
00120 #define COFFEE_SECTOR_SIZE        (COFFEE_PAGE_SIZE*1)
00121 #define COFFEE_NAME_LENGTH        16
00122 
00123 /* These are used internally by the AVR flash read routines */
00124 /* Word reads are faster but take 130 bytes more PROGMEM */
00125 #define FLASH_WORD_READS          1
00126 /* 1=Slower reads, but no page writes after erase and 18 bytes less PROGMEM. Best for dynamic file system */
00127 #define FLASH_COMPLEMENT_DATA     0 
00128 
00129 /* These are used internally by the coffee file system */
00130 /* Micro logs are not needed for single page sectors */
00131 #define COFFEE_MAX_OPEN_FILES     4
00132 #define COFFEE_FD_SET_SIZE        8
00133 #define COFFEE_LOG_TABLE_LIMIT    16
00134 #define COFFEE_DYN_SIZE           (COFFEE_PAGE_SIZE*1)
00135 #define COFFEE_MICRO_LOGS         0
00136 #define COFFEE_LOG_SIZE           128
00137 
00138 /* coffee_page_t is used for page and sector numbering
00139  * uint8_t can handle 511 pages.
00140  * cfs_offset_t is used for full byte addresses
00141  * If CFS_CONF_OFFSET_TYPE is not defined it defaults to int.
00142  * uint16_t can handle up to a 65535 byte file system.
00143  */
00144 #define coffee_page_t uint8_t
00145 #define CFS_CONF_OFFSET_TYPE uint16_t
00146 
00147 
00148 #define COFFEE_WRITE(buf, size, offset) \
00149         avr_flash_write(offset, (uint8_t *) buf, size)
00150 
00151 #define COFFEE_READ(buf, size, offset) \
00152         avr_flash_read(offset, (uint8_t *) buf, size)
00153 
00154 #define COFFEE_ERASE(sector) avr_flash_erase(sector)
00155 
00156 void avr_flash_erase(coffee_page_t sector);
00157 void avr_flash_read (CFS_CONF_OFFSET_TYPE addr, uint8_t *buf, CFS_CONF_OFFSET_TYPE size);
00158 void avr_flash_write(CFS_CONF_OFFSET_TYPE addr, uint8_t *buf, CFS_CONF_OFFSET_TYPE size);
00159 
00160 #define avr_httpd_fs_cpy(dest,addr,size) avr_flash_read((CFS_CONF_OFFSET_TYPE) addr, (uint8_t *)dest, (CFS_CONF_OFFSET_TYPE) size)
00161 char    avr_httpd_fs_getchar(char *addr);
00162 char *  avr_httpd_fs_strchr (char *ram, int character);
00163 int     avr_httpd_fs_strcmp (char *addr,char *ram);
00164 
00165 
00166 #endif /* COFFEE_AVR_FLASH */
00167 
00168 #endif /* !COFFEE_ARCH_H */

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