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1275 |
phoenix |
/*
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* Copyright (C) 1996, 1997 Claus-Justus Heine.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Source: /home/marcus/revision_ctrl_test/oc_cvs/cvs/or1k/linux/linux-2.4/drivers/char/ftape/lowlevel/ftape-setup.c,v $
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* $Revision: 1.1.1.1 $
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* $Date: 2004-04-15 02:02:35 $
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*
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* This file contains the code for processing the kernel command
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* line options for the QIC-40/80/3010/3020 floppy-tape driver
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* "ftape" for Linux.
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*/
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#include <linux/config.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/mm.h>
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#include <asm/segment.h>
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#include <linux/ftape.h>
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#if LINUX_VERSION_CODE >= KERNEL_VER(2,1,16)
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#include <linux/init.h>
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#else
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#define __initdata
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#define __initfunc(__arg) __arg
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#endif
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#include "../lowlevel/ftape-tracing.h"
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#include "../lowlevel/fdc-io.h"
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static struct param_table {
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const char *name;
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int *var;
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int def_param;
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int min;
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int max;
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} config_params[] __initdata = {
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#ifndef CONFIG_FT_NO_TRACE_AT_ALL
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{ "tracing", &ftape_tracing, 3, ft_t_bug, ft_t_any},
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#endif
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{ "ioport", &ft_fdc_base, CONFIG_FT_FDC_BASE, 0x0, 0xfff},
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{ "irq", &ft_fdc_irq, CONFIG_FT_FDC_IRQ, 2, 15},
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{ "dma", &ft_fdc_dma, CONFIG_FT_FDC_DMA, 0, 3},
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{ "threshold", &ft_fdc_threshold, CONFIG_FT_FDC_THR, 1, 16},
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{ "datarate", &ft_fdc_rate_limit, CONFIG_FT_FDC_MAX_RATE, 500, 2000},
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{ "fc10", &ft_probe_fc10, CONFIG_FT_PROBE_FC10, 0, 1},
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{ "mach2", &ft_mach2, CONFIG_FT_MACH2, 0, 1}
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};
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static int __init ftape_setup(char *str)
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{
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int i;
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int param;
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int ints[2];
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TRACE_FUN(ft_t_flow);
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str = get_options(str, ARRAY_SIZE(ints), ints);
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if (str) {
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for (i=0; i < NR_ITEMS(config_params); i++) {
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if (strcmp(str,config_params[i].name) == 0){
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if (ints[0]) {
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param = ints[1];
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} else {
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param = config_params[i].def_param;
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}
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if (param < config_params[i].min ||
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param > config_params[i].max) {
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TRACE(ft_t_err,
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"parameter %s out of range %d ... %d",
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config_params[i].name,
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config_params[i].min,
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config_params[i].max);
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goto out;
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}
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if(config_params[i].var) {
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TRACE(ft_t_info, "%s=%d", str, param);
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*config_params[i].var = param;
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}
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goto out;
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}
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}
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}
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if (str) {
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TRACE(ft_t_err, "unknown ftape option [%s]", str);
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TRACE(ft_t_err, "allowed options are:");
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for (i=0; i < NR_ITEMS(config_params); i++) {
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TRACE(ft_t_err, " %s",config_params[i].name);
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}
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} else {
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TRACE(ft_t_err, "botched ftape option");
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}
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out:
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TRACE_EXIT 1;
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}
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__setup("ftape=", ftape_setup);
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