1/*====================================================================== 2 3 A driver for Future Domain-compatible PCMCIA SCSI cards 4 5 fdomain_cs.c 1.47 2001/10/13 00:08:52 6 7 The contents of this file are subject to the Mozilla Public 8 License Version 1.1 (the "License"); you may not use this file 9 except in compliance with the License. You may obtain a copy of 10 the License at http://www.mozilla.org/MPL/ 11 12 Software distributed under the License is distributed on an "AS 13 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 14 implied. See the License for the specific language governing 15 rights and limitations under the License. 16 17 The initial developer of the original code is David A. Hinds 18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 20 21 Alternatively, the contents of this file may be used under the 22 terms of the GNU General Public License version 2 (the "GPL"), in 23 which case the provisions of the GPL are applicable instead of the 24 above. If you wish to allow the use of your version of this file 25 only under the terms of the GPL and not to allow others to use 26 your version of this file under the MPL, indicate your decision 27 by deleting the provisions above and replace them with the notice 28 and other provisions required by the GPL. If you do not delete 29 the provisions above, a recipient may use your version of this 30 file under either the MPL or the GPL. 31 32======================================================================*/ 33 34#include <linux/module.h> 35#include <linux/init.h> 36#include <linux/kernel.h> 37#include <linux/slab.h> 38#include <linux/string.h> 39#include <linux/ioport.h> 40#include <scsi/scsi.h> 41#include <linux/major.h> 42#include <linux/blkdev.h> 43#include <scsi/scsi_ioctl.h> 44 45#include "scsi.h" 46#include <scsi/scsi_host.h> 47#include "fdomain.h" 48 49#include <pcmcia/cistpl.h> 50#include <pcmcia/ds.h> 51 52/*====================================================================*/ 53 54/* Module parameters */ 55 56MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); 57MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver"); 58MODULE_LICENSE("Dual MPL/GPL"); 59 60/*====================================================================*/ 61 62typedef struct scsi_info_t { 63 struct pcmcia_device *p_dev; 64 struct Scsi_Host *host; 65} scsi_info_t; 66 67 68static void fdomain_release(struct pcmcia_device *link); 69static void fdomain_detach(struct pcmcia_device *p_dev); 70static int fdomain_config(struct pcmcia_device *link); 71 72static int fdomain_probe(struct pcmcia_device *link) 73{ 74 scsi_info_t *info; 75 76 dev_dbg(&link->dev, "fdomain_attach()\n"); 77 78 /* Create new SCSI device */ 79 info = kzalloc(sizeof(*info), GFP_KERNEL); 80 if (!info) 81 return -ENOMEM; 82 83 info->p_dev = link; 84 link->priv = info; 85 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; 86 link->config_regs = PRESENT_OPTION; 87 88 return fdomain_config(link); 89} /* fdomain_attach */ 90 91/*====================================================================*/ 92 93static void fdomain_detach(struct pcmcia_device *link) 94{ 95 dev_dbg(&link->dev, "fdomain_detach\n"); 96 97 fdomain_release(link); 98 99 kfree(link->priv); 100} /* fdomain_detach */ 101 102/*====================================================================*/ 103 104static int fdomain_config_check(struct pcmcia_device *p_dev, void *priv_data) 105{ 106 p_dev->io_lines = 10; 107 p_dev->resource[0]->end = 0x10; 108 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 109 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 110 return pcmcia_request_io(p_dev); 111} 112 113 114static int fdomain_config(struct pcmcia_device *link) 115{ 116 scsi_info_t *info = link->priv; 117 int ret; 118 char str[22]; 119 struct Scsi_Host *host; 120 121 dev_dbg(&link->dev, "fdomain_config\n"); 122 123 ret = pcmcia_loop_config(link, fdomain_config_check, NULL); 124 if (ret) 125 goto failed; 126 127 if (!link->irq) 128 goto failed; 129 ret = pcmcia_enable_device(link); 130 if (ret) 131 goto failed; 132 133 /* A bad hack... */ 134 release_region(link->resource[0]->start, resource_size(link->resource[0])); 135 136 /* Set configuration options for the fdomain driver */ 137 sprintf(str, "%d,%d", (unsigned int) link->resource[0]->start, link->irq); 138 fdomain_setup(str); 139 140 host = __fdomain_16x0_detect(&fdomain_driver_template); 141 if (!host) { 142 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n"); 143 goto failed; 144 } 145 146 if (scsi_add_host(host, NULL)) 147 goto failed; 148 scsi_scan_host(host); 149 150 info->host = host; 151 152 return 0; 153 154failed: 155 fdomain_release(link); 156 return -ENODEV; 157} /* fdomain_config */ 158 159/*====================================================================*/ 160 161static void fdomain_release(struct pcmcia_device *link) 162{ 163 scsi_info_t *info = link->priv; 164 165 dev_dbg(&link->dev, "fdomain_release\n"); 166 167 scsi_remove_host(info->host); 168 pcmcia_disable_device(link); 169 scsi_unregister(info->host); 170} 171 172/*====================================================================*/ 173 174static int fdomain_resume(struct pcmcia_device *link) 175{ 176 fdomain_16x0_bus_reset(NULL); 177 178 return 0; 179} 180 181static const struct pcmcia_device_id fdomain_ids[] = { 182 PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20), 183 PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e), 184 PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f), 185 PCMCIA_DEVICE_NULL, 186}; 187MODULE_DEVICE_TABLE(pcmcia, fdomain_ids); 188 189static struct pcmcia_driver fdomain_cs_driver = { 190 .owner = THIS_MODULE, 191 .name = "fdomain_cs", 192 .probe = fdomain_probe, 193 .remove = fdomain_detach, 194 .id_table = fdomain_ids, 195 .resume = fdomain_resume, 196}; 197 198static int __init init_fdomain_cs(void) 199{ 200 return pcmcia_register_driver(&fdomain_cs_driver); 201} 202 203static void __exit exit_fdomain_cs(void) 204{ 205 pcmcia_unregister_driver(&fdomain_cs_driver); 206} 207 208module_init(init_fdomain_cs); 209module_exit(exit_fdomain_cs); 210