253 lines
6.2 KiB
C
253 lines
6.2 KiB
C
/* $NetBSD: mem.c,v 1.5 2008/04/28 20:23:19 martin Exp $ */
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/*-
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* Copyright (c) 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <lib/libsa/stand.h>
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#include <lib/libkern/libkern.h>
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#include <machine/param.h>
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#include <machine/bfs.h>
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#include "local.h"
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#include "cmd.h"
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/*
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* Dump 350 GA-ROM
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* >> mem g 0xf7e00000 4 4 0x8000 garom.bin
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*/
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void mem_write(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
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void mem_read(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
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bool __ga_rom;
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int
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cmd_mem(int argc, char *argp[], int interactive)
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{
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const char *filename = 0;
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struct bfs *bfs;
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uint32_t a[4], v;
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int i, c;
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size_t size;
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void *p;
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if (argc < 6)
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goto error;
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for (i = 0; i < 4; i++)
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a[i] = strtoul(argp[2 + i], 0, 0);
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c = *argp[1];
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if (c == 'g') {
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size = a[3]; /* GA-ROM special */
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__ga_rom = true;
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} else {
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size = a[1] * a[3];
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__ga_rom = false;
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}
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p = 0;
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if ((c == 'd') || (c == 'b') || (c == 'g')) {
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if (argc < 7)
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goto error;
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filename = argp[6];
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if (strlen(filename) > BFS_FILENAME_MAXLEN) {
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printf("too long filename. (max %d)\n",
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BFS_FILENAME_MAXLEN);
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return 1;
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}
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if ((p = alloc(size)) == 0) {
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printf("can't allocate buffer.\n");
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return 1;
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}
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if (bfs_init(&bfs) != 0) {
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printf("no BFS partition.\n");
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dealloc(p, size);
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return 1;
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}
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}
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switch (c) {
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default:
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goto error;
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case 'r':
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mem_read(a[0], a[1], a[2], a[3], 0);
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break;
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case 'w':
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if (argc < 7)
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goto error;
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v = strtoul(argp[6], 0, 0);
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mem_write(a[0], a[1], a[2], a[3], (uint32_t)&v);
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break;
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case 'd':
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mem_read(a[0], a[1], a[2], a[3], (uint32_t)p);
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if (bfs_file_write(bfs, filename, p, size) != 0)
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printf("BFS write failed.\n");
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bfs_fini(bfs);
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break;
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case 'b':
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if (bfs_file_read(bfs, filename, p, size, 0) != 0)
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printf("BFS read failed.\n");
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else
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mem_write(a[0], a[1], a[2], a[3], (uint32_t)p);
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bfs_fini(bfs);
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break;
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case 'g': /* GA-ROM special */
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mem_read(a[0], a[1], a[2], a[3], (uint32_t)p);
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if (bfs_file_write(bfs, filename, p, size) != 0)
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printf("BFS write failed.\n");
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bfs_fini(bfs);
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break;
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}
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return 0;
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error:
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printf("mem r addr access_byte stride count\n");
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printf("mem w addr access_byte stride count value\n");
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printf("mem d addr access_byte stride count filename\n");
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printf("mem b addr access_byte stride count filename\n");
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printf("mem g addr access_byte stride count filename (GA-ROM only)\n");
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return 1;
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}
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void
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mem_write(uint32_t dst_addr, uint32_t access, uint32_t stride,
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uint32_t count, uint32_t src_addr)
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{
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int i;
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printf("write: addr=%p access=%dbyte stride=%dbyte count=%d Y/N?",
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(void *)dst_addr, access, stride, count);
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if (!prompt_yesno(1))
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return;
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switch (access) {
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default:
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printf("invalid %dbyte access.\n", access);
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break;
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case 1:
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if (count == 1)
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printf("%p = 0x%x\n",
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(uint8_t *)dst_addr, *(uint8_t *)src_addr);
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for (i = 0; i < count; i++,
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dst_addr += stride, src_addr += stride) {
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*(uint8_t *)dst_addr = *(uint8_t *)src_addr;
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}
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case 2:
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if (count == 1)
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printf("%p = 0x%x\n",
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(uint16_t *)dst_addr, *(uint16_t *)src_addr);
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for (i = 0; i < count; i++,
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dst_addr += stride, src_addr += stride) {
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*(uint16_t *)dst_addr = *(uint16_t *)src_addr;
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}
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case 4:
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if (count == 1)
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printf("%p = 0x%x\n",
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(uint32_t *)dst_addr, *(uint32_t *)src_addr);
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for (i = 0; i < count; i++,
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dst_addr += stride, src_addr += stride) {
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*(uint32_t *)dst_addr = *(uint32_t *)src_addr;
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}
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}
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}
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void
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mem_read(uint32_t src_addr, uint32_t access, uint32_t stride,
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uint32_t count, uint32_t dst_addr)
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{
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uint32_t v = 0;
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int i;
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printf("read: addr=%p access=%dbyte stride=%dbyte count=%d. Y/N?\n",
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(void *)src_addr, access, stride, count);
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if (!prompt_yesno(1))
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return;
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if (dst_addr == 0) {
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for (i = 0; i < count; i++) {
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switch (access) {
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default:
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printf("invalid %dbyte access.\n", access);
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break;
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case 1:
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v = *(uint8_t *)src_addr;
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break;
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case 2:
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v = *(uint16_t *)src_addr;
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break;
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case 4:
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v = *(uint32_t *)src_addr;
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break;
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}
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printf("%p: > 0x%x\n", (void *)src_addr, v);
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src_addr += stride;
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}
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} else {
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switch (access) {
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default:
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printf("invalid %dbyte access.\n", access);
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break;
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case 1:
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for (i = 0; i < count; i++,
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src_addr += stride, dst_addr += stride)
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*(uint8_t *)dst_addr = *(uint8_t *)src_addr;
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break;
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case 2:
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for (i = 0; i < count; i++,
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src_addr += stride, dst_addr += stride)
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*(uint16_t *)dst_addr = *(uint16_t *)src_addr;
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break;
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case 4:
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if (__ga_rom) {
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for (i = 0; i < count; i++,
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src_addr += 4, dst_addr += 1)
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*(uint8_t *)dst_addr =
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*(uint32_t *)src_addr;
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} else {
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for (i = 0; i < count; i++,
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src_addr += stride, dst_addr += stride)
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*(uint32_t *)dst_addr =
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*(uint32_t *)src_addr;
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}
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break;
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}
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}
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printf("done.\n");
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}
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