/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2006-2007 Dave Chapman * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include #include #include #include #include #include #include #include #include #if defined(linux) || defined (__linux) #include #define SANSA_SECTORSIZE_IOCTL BLKSSZGET #elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) \ || defined(__bsdi__) || defined(__DragonFly__) #include #define SANSA_SECTORSIZE_IOCTL DIOCGSECTORSIZE #elif defined(__APPLE__) && defined(__MACH__) #include #define SANSA_SECTORSIZE_IOCTL DKIOCGETBLOCKSIZE #else #error No sector-size detection implemented for this platform #endif #include "sansaio.h" #if defined(__APPLE__) && defined(__MACH__) static int sansa_unmount(struct sansa_t* sansa) { char cmd[4096]; int res; sprintf(cmd, "/usr/sbin/diskutil unmount \"%ss1\"",sansa->diskname); fprintf(stderr,"[INFO] "); res = system(cmd); if (res==0) { return 0; } else { perror("Unmount failed"); return -1; } } #endif #ifndef RBUTIL void print_error(char* msg) { perror(msg); } #endif int sansa_open(struct sansa_t* sansa, int silent) { sansa->dh=open(sansa->diskname,O_RDONLY); if (sansa->dh < 0) { if (!silent) perror(sansa->diskname); if(errno == EACCES) return -2; else return -1; } if(ioctl(sansa->dh,SANSA_SECTORSIZE_IOCTL,&sansa->sector_size) < 0) { sansa->sector_size=512; if (!silent) { fprintf(stderr,"[ERR] ioctl() call to get sector size failed, defaulting to %d\n" ,sansa->sector_size); } } return 0; } int sansa_reopen_rw(struct sansa_t* sansa) { #if defined(__APPLE__) && defined(__MACH__) if (sansa_unmount(sansa) < 0) return -1; #endif close(sansa->dh); sansa->dh=open(sansa->diskname,O_RDWR); if (sansa->dh < 0) { perror(sansa->diskname); return -1; } return 0; } int sansa_close(struct sansa_t* sansa) { close(sansa->dh); return 0; } int sansa_alloc_buffer(unsigned char** sectorbuf, int bufsize) { *sectorbuf=malloc(bufsize); if (*sectorbuf == NULL) { return -1; } return 0; } int sansa_seek(struct sansa_t* sansa, loff_t pos) { off_t res; res = lseek64(sansa->dh, pos, SEEK_SET); if (res == -1) { return -1; } return 0; } int sansa_read(struct sansa_t* sansa, unsigned char* buf, int nbytes) { return read(sansa->dh, buf, nbytes); } int sansa_write(struct sansa_t* sansa, unsigned char* buf, int nbytes) { return write(sansa->dh, buf, nbytes); }