Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 1993-1996 Bas Laarhoven, |
| 3 | * (C) 1996-1997 Claus-Justus Heine. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2, or (at your option) |
| 8 | any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; see the file COPYING. If not, write to |
| 17 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | |
| 19 | * |
| 20 | * This file contains the code that interfaces the kernel |
| 21 | * for the QIC-40/80/3010/3020 floppy-tape driver for Linux. |
| 22 | */ |
| 23 | |
| 24 | #include <linux/config.h> |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/errno.h> |
| 27 | #include <linux/fs.h> |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/signal.h> |
| 30 | #include <linux/major.h> |
| 31 | |
| 32 | #include <linux/ftape.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/qic117.h> |
| 35 | #ifdef CONFIG_ZFTAPE |
| 36 | #include <linux/zftape.h> |
| 37 | #endif |
| 38 | |
| 39 | #include "../lowlevel/ftape-init.h" |
| 40 | #include "../lowlevel/ftape-io.h" |
| 41 | #include "../lowlevel/ftape-read.h" |
| 42 | #include "../lowlevel/ftape-write.h" |
| 43 | #include "../lowlevel/ftape-ctl.h" |
| 44 | #include "../lowlevel/ftape-rw.h" |
| 45 | #include "../lowlevel/fdc-io.h" |
| 46 | #include "../lowlevel/ftape-buffer.h" |
| 47 | #include "../lowlevel/ftape-proc.h" |
| 48 | #include "../lowlevel/ftape-tracing.h" |
| 49 | |
| 50 | |
| 51 | #if defined(MODULE) && !defined(CONFIG_FT_NO_TRACE_AT_ALL) |
| 52 | static int ft_tracing = -1; |
| 53 | #endif |
| 54 | |
| 55 | |
| 56 | /* Called by modules package when installing the driver |
| 57 | * or by kernel during the initialization phase |
| 58 | */ |
| 59 | static int __init ftape_init(void) |
| 60 | { |
| 61 | TRACE_FUN(ft_t_flow); |
| 62 | |
| 63 | #ifdef MODULE |
| 64 | #ifndef CONFIG_FT_NO_TRACE_AT_ALL |
| 65 | if (ft_tracing != -1) { |
| 66 | ftape_tracing = ft_tracing; |
| 67 | } |
| 68 | #endif |
| 69 | printk(KERN_INFO FTAPE_VERSION "\n"); |
| 70 | if (TRACE_LEVEL >= ft_t_info) { |
| 71 | printk( |
| 72 | KERN_INFO "(c) 1993-1996 Bas Laarhoven (bas@vimec.nl)\n" |
| 73 | KERN_INFO "(c) 1995-1996 Kai Harrekilde-Petersen (khp@dolphinics.no)\n" |
| 74 | KERN_INFO "(c) 1996-1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)\n" |
| 75 | KERN_INFO "QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives\n"); |
| 76 | } |
| 77 | #else /* !MODULE */ |
| 78 | /* print a short no-nonsense boot message */ |
| 79 | printk(KERN_INFO FTAPE_VERSION "\n"); |
| 80 | #endif /* MODULE */ |
| 81 | TRACE(ft_t_info, "installing QIC-117 floppy tape hardware drive ... "); |
| 82 | TRACE(ft_t_info, "ftape_init @ 0x%p", ftape_init); |
| 83 | /* Allocate the DMA buffers. They are deallocated at cleanup() time. |
| 84 | */ |
| 85 | #ifdef TESTING |
| 86 | #ifdef MODULE |
| 87 | while (ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS) < 0) { |
| 88 | ftape_sleep(FT_SECOND/20); |
| 89 | if (signal_pending(current)) { |
| 90 | (void)ftape_set_nr_buffers(0); |
| 91 | TRACE(ft_t_bug, |
| 92 | "Killed by signal while allocating buffers."); |
| 93 | TRACE_ABORT(-EINTR, |
| 94 | ft_t_bug, "Free up memory and retry"); |
| 95 | } |
| 96 | } |
| 97 | #else |
| 98 | TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS), |
| 99 | (void)ftape_set_nr_buffers(0)); |
| 100 | #endif |
| 101 | #else |
| 102 | TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS), |
| 103 | (void)ftape_set_nr_buffers(0)); |
| 104 | #endif |
| 105 | ft_drive_sel = -1; |
| 106 | ft_failure = 1; /* inhibit any operation but open */ |
| 107 | ftape_udelay_calibrate(); /* must be before fdc_wait_calibrate ! */ |
| 108 | fdc_wait_calibrate(); |
| 109 | #if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS) |
| 110 | (void)ftape_proc_init(); |
| 111 | #endif |
| 112 | #ifdef CONFIG_ZFTAPE |
| 113 | (void)zft_init(); |
| 114 | #endif |
| 115 | TRACE_EXIT 0; |
| 116 | } |
| 117 | |
| 118 | module_param(ft_fdc_base, uint, 0); |
| 119 | MODULE_PARM_DESC(ft_fdc_base, "Base address of FDC controller."); |
| 120 | module_param(ft_fdc_irq, uint, 0); |
| 121 | MODULE_PARM_DESC(ft_fdc_irq, "IRQ (interrupt channel) to use."); |
| 122 | module_param(ft_fdc_dma, uint, 0); |
| 123 | MODULE_PARM_DESC(ft_fdc_dma, "DMA channel to use."); |
| 124 | module_param(ft_fdc_threshold, uint, 0); |
| 125 | MODULE_PARM_DESC(ft_fdc_threshold, "Threshold of the FDC Fifo."); |
| 126 | module_param(ft_fdc_rate_limit, uint, 0); |
| 127 | MODULE_PARM_DESC(ft_fdc_rate_limit, "Maximal data rate for FDC."); |
| 128 | module_param(ft_probe_fc10, bool, 0); |
| 129 | MODULE_PARM_DESC(ft_probe_fc10, |
| 130 | "If non-zero, probe for a Colorado FC-10/FC-20 controller."); |
| 131 | module_param(ft_mach2, bool, 0); |
| 132 | MODULE_PARM_DESC(ft_mach2, |
| 133 | "If non-zero, probe for a Mountain MACH-2 controller."); |
| 134 | #if defined(MODULE) && !defined(CONFIG_FT_NO_TRACE_AT_ALL) |
| 135 | module_param(ft_tracing, int, 0644); |
| 136 | MODULE_PARM_DESC(ft_tracing, |
| 137 | "Amount of debugging output, 0 <= tracing <= 8, default 3."); |
| 138 | #endif |
| 139 | |
| 140 | MODULE_AUTHOR( |
| 141 | "(c) 1993-1996 Bas Laarhoven (bas@vimec.nl), " |
| 142 | "(c) 1995-1996 Kai Harrekilde-Petersen (khp@dolphinics.no), " |
| 143 | "(c) 1996, 1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)"); |
| 144 | MODULE_DESCRIPTION( |
| 145 | "QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives."); |
| 146 | MODULE_LICENSE("GPL"); |
| 147 | |
| 148 | static void __exit ftape_exit(void) |
| 149 | { |
| 150 | TRACE_FUN(ft_t_flow); |
| 151 | |
| 152 | #if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS) |
| 153 | ftape_proc_destroy(); |
| 154 | #endif |
| 155 | (void)ftape_set_nr_buffers(0); |
| 156 | printk(KERN_INFO "ftape: unloaded.\n"); |
| 157 | TRACE_EXIT; |
| 158 | } |
| 159 | |
| 160 | module_init(ftape_init); |
| 161 | module_exit(ftape_exit); |