patch-2.1.66 linux/drivers/char/ftape/lowlevel/ftape-init.c

• Lines: 189
• Date: Tue Nov 25 14:45:27 1997
• Orig file: v2.1.65/linux/drivers/char/ftape/lowlevel/ftape-init.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.65/linux/drivers/char/ftape/lowlevel/ftape-init.c linux/drivers/char/ftape/lowlevel/ftape-init.c
@@ -0,0 +1,188 @@
+/*
+ *      Copyright (C) 1993-1996 Bas Laarhoven,
+ *                (C) 1996-1997 Claus-Justus Heine.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING.  If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ *
+ *      This file contains the code that interfaces the kernel
+ *      for the QIC-40/80/3010/3020 floppy-tape driver for Linux.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/major.h>
+
+#include <linux/ftape.h>
+#if LINUX_VERSION_CODE >= KERNEL_VER(2,1,16)
+#include <linux/init.h>
+#else
+#define __initdata
+#define __initfunc(__arg) __arg
+#endif
+#include <linux/qic117.h>
+#ifdef CONFIG_ZFTAPE
+#include <linux/zftape.h>
+#endif
+
+#include "../lowlevel/ftape-init.h"
+#include "../lowlevel/ftape_syms.h"
+#include "../lowlevel/ftape-io.h"
+#include "../lowlevel/ftape-read.h"
+#include "../lowlevel/ftape-write.h"
+#include "../lowlevel/ftape-ctl.h"
+#include "../lowlevel/ftape-rw.h"
+#include "../lowlevel/fdc-io.h"
+#include "../lowlevel/ftape-buffer.h"
+#include "../lowlevel/ftape-proc.h"
+#include "../lowlevel/ftape-tracing.h"
+
+/*      Global vars.
+ */
+char ft_src[] __initdata = "$Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-init.c,v $";
+char ft_rev[] __initdata = "$Revision: 1.8 $";
+char ft_dat[] __initdata = "$Date: 1997/11/06 00:38:08 $";
+
+
+/*  Called by modules package when installing the driver
+ *  or by kernel during the initialization phase
+ */
+__initfunc(int ftape_init(void))
+{
+	TRACE_FUN(ft_t_flow);
+
+#ifdef MODULE
+	printk(KERN_INFO FTAPE_VERSION "\n");
+        if (TRACE_LEVEL >= ft_t_info) {
+		printk(
+KERN_INFO "(c) 1993-1996 Bas Laarhoven (bas@vimec.nl)\n"
+KERN_INFO "(c) 1995-1996 Kai Harrekilde-Petersen (khp@dolphinics.no)\n"
+KERN_INFO "(c) 1996-1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)\n"
+KERN_INFO "QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives\n"
+KERN_INFO "Compiled for Linux version %s"
+#ifdef MODVERSIONS
+	       " with versioned symbols"
+#endif
+	       "\n", UTS_RELEASE);
+        }
+#else /* !MODULE */
+	/* print a short no-nonsense boot message */
+	printk(KERN_INFO FTAPE_VERSION " for Linux " UTS_RELEASE "\n");
+#endif /* MODULE */
+	TRACE(ft_t_info, "installing QIC-117 floppy tape hardware drive ... ");
+	TRACE(ft_t_info, "ftape_init @ 0x%p", ftape_init);
+	/*  Allocate the DMA buffers. They are deallocated at cleanup() time.
+	 */
+#if TESTING
+#ifdef MODULE
+	while (ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS) < 0) {
+		ftape_sleep(FT_SECOND/20);
+		if (current->signal & ~current->blocked) {
+			(void)ftape_set_nr_buffers(0);
+			TRACE(ft_t_bug,
+			      "Killed by signal while allocating buffers.");
+			TRACE_ABORT(-EINTR, 
+				    ft_t_bug, "Free up memory and retry");
+		}
+	}
+#else
+	TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS),
+		    (void)ftape_set_nr_buffers(0));
+#endif
+#else
+	TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS),
+		    (void)ftape_set_nr_buffers(0));
+#endif
+	ft_drive_sel = -1;
+	ft_failure   = 1;         /* inhibit any operation but open */
+	ftape_udelay_calibrate(); /* must be before fdc_wait_calibrate ! */
+	fdc_wait_calibrate();
+#if (LINUX_VERSION_CODE >= KERNEL_VER(1,2,0) && \
+     LINUX_VERSION_CODE < KERNEL_VER(2,1,18))
+	register_symtab(&ftape_symbol_table); /* add global ftape symbols */
+#endif
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS)
+	(void)ftape_proc_init();
+#endif
+#ifdef CONFIG_ZFTAPE
+	(void)zft_init();
+#endif
+	TRACE_EXIT 0;
+}
+
+#ifdef MODULE
+
+#ifndef CONFIG_FT_NO_TRACE_AT_ALL
+static int ft_tracing = -1;
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VER(2,1,18)
+#define FT_MOD_PARM(var,type,desc) \
+	MODULE_PARM(var,type); MODULE_PARM_DESC(var,desc)
+
+FT_MOD_PARM(ft_fdc_base,       "i", "Base address of FDC controller.");
+FT_MOD_PARM(ft_fdc_irq,        "i", "IRQ (interrupt channel) to use.");
+FT_MOD_PARM(ft_fdc_dma,        "i", "DMA channel to use.");
+FT_MOD_PARM(ft_fdc_threshold,  "i", "Threshold of the FDC Fifo.");
+FT_MOD_PARM(ft_fdc_rate_limit, "i", "Maximal data rate for FDC.");
+FT_MOD_PARM(ft_probe_fc10,     "i", 
+	    "If non-zero, probe for a Colorado FC-10/FC-20 controller.");
+FT_MOD_PARM(ft_mach2,          "i",
+	    "If non-zero, probe for a Mountain MACH-2 controller.");
+FT_MOD_PARM(ft_tracing,        "i", 
+	    "Amount of debugging output, 0 <= tracing <= 8, default 3.");
+MODULE_AUTHOR(
+	"(c) 1993-1996 Bas Laarhoven (bas@vimec.nl), "
+	"(c) 1995-1996 Kai Harrekilde-Petersen (khp@dolphinics.no), "
+	"(c) 1996, 1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)");
+MODULE_DESCRIPTION(
+	"QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives.");
+#endif
+
+#if LINUX_VERSION_CODE <= KERNEL_VER(1,2,13)
+char kernel_version[] = UTS_RELEASE;
+#endif
+
+/*  Called by modules package when installing the driver
+ */
+int init_module(void)
+{
+#ifndef CONFIG_FT_NO_TRACE_AT_ALL
+	if (ft_tracing != -1) {
+		ftape_tracing = ft_tracing;
+	}
+#endif
+	return ftape_init();
+}
+
+/*  Called by modules package when removing the driver
+ */
+void cleanup_module(void)
+{
+	TRACE_FUN(ft_t_flow);
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS)
+	ftape_proc_destroy();
+#endif
+	(void)ftape_set_nr_buffers(0);
+        printk(KERN_INFO "ftape: unloaded.\n");
+	TRACE_EXIT;
+}
+#endif /* MODULE */