1 /* $NetBSD: dev_flash.c,v 1.2 2003/08/09 08:01:43 igy Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Naoto Shimazaki. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY NAOTO SHIMAZAKI AND CONTRIBUTORS ``AS IS'' 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 18 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE NAOTO OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: dev_flash.c,v 1.2 2003/08/09 08:01:43 igy Exp $"); 30 31 #include <sys/param.h> 32 #include <lib/libsa/stand.h> 33 #include <machine/stdarg.h> 34 35 #include "extern.h" 36 37 #define READ_CHUNK 0x10000 38 39 int 40 flash_strategy(void *devdata, int rw, daddr_t blk, 41 size_t size, void *buf , size_t *rsize) 42 { 43 u_int8_t *src; 44 size_t count; 45 46 if (rw != F_READ) 47 return EIO; 48 49 src = (u_int8_t *) KERN_ROMBASE + dbtob(blk); 50 count = size < READ_CHUNK ? size : READ_CHUNK; 51 bcopy(src, buf, count); 52 *rsize = count; 53 return 0; 54 } 55 56 int 57 flash_open(struct open_file *f, ...) 58 { 59 char *fname; 60 char **file; 61 va_list ap; 62 63 va_start(ap, f); 64 fname = va_arg(ap, char *); 65 file = va_arg(ap, char **); 66 va_end(ap); 67 68 *file = NULL; 69 70 return 0; 71 } 72 73 int 74 flash_close(struct open_file *f) 75 { 76 return 0; 77 } 78 79 int 80 flash_ioctl(struct open_file *f, u_long cmd, void *data) 81 { 82 return EIO; 83 } 84