From 0914fe489e60dbd9b095efaf19fddc382f25495b Mon Sep 17 00:00:00 2001 From: fros4943 Date: Wed, 11 Oct 2006 14:16:10 +0000 Subject: [PATCH] added Contiki Filesystem (CFS) support in COOJA: core interface, glue driver --- platform/cooja/dev/cfs-cooja.c | 173 +++++++++++++++++++++++++++++++++ platform/cooja/dev/cfs-cooja.h | 39 ++++++++ 2 files changed, 212 insertions(+) create mode 100644 platform/cooja/dev/cfs-cooja.c create mode 100644 platform/cooja/dev/cfs-cooja.h diff --git a/platform/cooja/dev/cfs-cooja.c b/platform/cooja/dev/cfs-cooja.c new file mode 100644 index 000000000..736af32e4 --- /dev/null +++ b/platform/cooja/dev/cfs-cooja.c @@ -0,0 +1,173 @@ +/* + * Copyright (c) 2006, Swedish Institute of Computer Science. + * All rights reserved. + * + * 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 Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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. + * + * This file is part of the Contiki operating system. + * + * $Id: cfs-cooja.c,v 1.1 2006/10/11 14:16:10 fros4943 Exp $ + */ +#include +#include "dev/cfs-cooja.h" +#include "lib/simEnvChange.h" + +#include "cfs/cfs.h" +#include "cfs/cfs-service.h" +#include "dev/eeprom.h" + +struct filestate { + int flag; +#define FLAG_FILE_CLOSED 0 +#define FLAG_FILE_OPEN 1 + eeprom_addr_t fileptr; +}; + +static struct filestate file; + +const struct simInterface cfs_interface; + +// COOJA variables +#define CFS_BUF_SIZE 60*1024 +char simCFSData[CFS_BUF_SIZE]; +char simCFSChanged = 0; +int simCFSRead = 0; +int simCFSWritten = 0; + +/*---------------------------------------------------------------------------*/ +static int +s_open(const char *n, int f) +{ + if(file.flag == FLAG_FILE_CLOSED) { + file.flag = FLAG_FILE_OPEN; + file.fileptr = 0; + return 1; + } else { + return -1; + } +} +/*---------------------------------------------------------------------------*/ +static void +s_close(int f) +{ + file.flag = FLAG_FILE_CLOSED; +} +/*---------------------------------------------------------------------------*/ +static int +s_read(int f, char *buf, unsigned int len) +{ + if(f == 1) { + // TODO Should yield a few times? + memcpy(&buf[0], &simCFSData[0] + file.fileptr, len); + file.fileptr += len; + simCFSChanged = 1; + simCFSRead += len; + return len; + } else { + return -1; + } +} +/*---------------------------------------------------------------------------*/ +static int +s_write(int f, char *buf, unsigned int len) +{ + if(f == 1) { + // TODO Should yield a few times? + memcpy(&simCFSData[0] + file.fileptr, &buf[0], len); + file.fileptr += len; + simCFSChanged = 1; + simCFSWritten += len; + return len; + } else { + return -1; + } +} +/*---------------------------------------------------------------------------*/ +static int +s_seek(int f, unsigned int o) +{ + if(f == 1) { + file.fileptr = o; + return o; + } else { + return -1; + } +} +/*---------------------------------------------------------------------------*/ +static int +s_opendir(struct cfs_dir *p, const char *n) +{ + return 1; +} +/*---------------------------------------------------------------------------*/ +static int +s_readdir(struct cfs_dir *p, struct cfs_dirent *e) +{ + return 1; +} +/*---------------------------------------------------------------------------*/ +static int +s_closedir(struct cfs_dir *p) +{ + return 1; +} +/*---------------------------------------------------------------------------*/ +/* + * Service registration code follows. + */ +SERVICE(cfs_cooja_service, cfs_service, +{ s_open, s_close, s_read, s_write, s_seek, + s_opendir, s_readdir, s_closedir }); + +PROCESS(cfs_cooja_process, "CFS COOJA service"); + +PROCESS_THREAD(cfs_cooja_process, ev, data) +{ + PROCESS_BEGIN(); + + SERVICE_REGISTER(cfs_cooja_service); + + PROCESS_WAIT_EVENT_UNTIL(ev == PROCESS_EVENT_SERVICE_REMOVED || + ev == PROCESS_EVENT_EXIT); + + SERVICE_REMOVE(cfs_cooja_service); + + PROCESS_END(); +} +/*-----------------------------------------------------------------------------------*/ +static void +doInterfaceActionsBeforeTick(void) +{ +} +/*-----------------------------------------------------------------------------------*/ +static void +doInterfaceActionsAfterTick(void) +{ +} +/*-----------------------------------------------------------------------------------*/ + +SIM_INTERFACE(cfs_interface, + doInterfaceActionsBeforeTick, + doInterfaceActionsAfterTick); diff --git a/platform/cooja/dev/cfs-cooja.h b/platform/cooja/dev/cfs-cooja.h new file mode 100644 index 000000000..c437aa5ce --- /dev/null +++ b/platform/cooja/dev/cfs-cooja.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2006, Swedish Institute of Computer Science. + * All rights reserved. + * + * 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 Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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. + * + * $Id: cfs-cooja.h,v 1.1 2006/10/11 14:16:10 fros4943 Exp $ + */ +#ifndef __CFS_COOJA_H__ +#define __CFS_COOJA_H__ + +#include "contiki.h" +#include "cfs/cfs.h" + +PROCESS_NAME(cfs_cooja_process); + +#endif /* __CFS_COOJA_H__ */