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/cs.h> 50#include <pcmcia/cistpl.h> 51#include <pcmcia/ds.h> 52 53/*====================================================================*/ 54 55/* Module parameters */ 56 57MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); 58MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver"); 59MODULE_LICENSE("Dual MPL/GPL"); 60 61/*====================================================================*/ 62 63typedef struct scsi_info_t { 64 struct pcmcia_device *p_dev; 65 struct Scsi_Host *host; 66} scsi_info_t; 67 68 69static void fdomain_release(struct pcmcia_device *link); 70static void fdomain_detach(struct pcmcia_device *p_dev); 71static int fdomain_config(struct pcmcia_device *link); 72 73static int fdomain_probe(struct pcmcia_device *link) 74{ 75 scsi_info_t *info; 76 77 dev_dbg(&link->dev, "fdomain_attach()\n"); 78 79 /* Create new SCSI device */ 80 info = kzalloc(sizeof(*info), GFP_KERNEL); 81 if (!info) 82 return -ENOMEM; 83 84 info->p_dev = link; 85 link->priv = info; 86 link->resource[0]->end = 0x10; 87 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 88 link->conf.Attributes = CONF_ENABLE_IRQ; 89 link->conf.IntType = INT_MEMORY_AND_IO; 90 link->conf.Present = PRESENT_OPTION; 91 92 return fdomain_config(link); 93} /* fdomain_attach */ 94 95/*====================================================================*/ 96 97static void fdomain_detach(struct pcmcia_device *link) 98{ 99 dev_dbg(&link->dev, "fdomain_detach\n"); 100 101 fdomain_release(link); 102 103 kfree(link->priv); 104} /* fdomain_detach */ 105 106/*====================================================================*/ 107 108static int fdomain_config_check(struct pcmcia_device *p_dev, 109 cistpl_cftable_entry_t *cfg, 110 cistpl_cftable_entry_t *dflt, 111 unsigned int vcc, 112 void *priv_data) 113{ 114 p_dev->io_lines = 10; 115 p_dev->resource[0]->start = cfg->io.win[0].base; 116 return pcmcia_request_io(p_dev); 117} 118 119 120static int fdomain_config(struct pcmcia_device *link) 121{ 122 scsi_info_t *info = link->priv; 123 int ret; 124 char str[22]; 125 struct Scsi_Host *host; 126 127 dev_dbg(&link->dev, "fdomain_config\n"); 128 129 ret = pcmcia_loop_config(link, fdomain_config_check, NULL); 130 if (ret) 131 goto failed; 132 133 if (!link->irq) 134 goto failed; 135 ret = pcmcia_request_configuration(link, &link->conf); 136 if (ret) 137 goto failed; 138 139 /* A bad hack... */ 140 release_region(link->resource[0]->start, resource_size(link->resource[0])); 141 142 /* Set configuration options for the fdomain driver */ 143 sprintf(str, "%d,%d", (unsigned int) link->resource[0]->start, link->irq); 144 fdomain_setup(str); 145 146 host = __fdomain_16x0_detect(&fdomain_driver_template); 147 if (!host) { 148 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n"); 149 goto failed; 150 } 151 152 if (scsi_add_host(host, NULL)) 153 goto failed; 154 scsi_scan_host(host); 155 156 info->host = host; 157 158 return 0; 159 160failed: 161 fdomain_release(link); 162 return -ENODEV; 163} /* fdomain_config */ 164 165/*====================================================================*/ 166 167static void fdomain_release(struct pcmcia_device *link) 168{ 169 scsi_info_t *info = link->priv; 170 171 dev_dbg(&link->dev, "fdomain_release\n"); 172 173 scsi_remove_host(info->host); 174 pcmcia_disable_device(link); 175 scsi_unregister(info->host); 176} 177 178/*====================================================================*/ 179 180static int fdomain_resume(struct pcmcia_device *link) 181{ 182 fdomain_16x0_bus_reset(NULL); 183 184 return 0; 185} 186 187static struct pcmcia_device_id fdomain_ids[] = { 188 PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20), 189 PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e), 190 PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f), 191 PCMCIA_DEVICE_NULL, 192}; 193MODULE_DEVICE_TABLE(pcmcia, fdomain_ids); 194 195static struct pcmcia_driver fdomain_cs_driver = { 196 .owner = THIS_MODULE, 197 .drv = { 198 .name = "fdomain_cs", 199 }, 200 .probe = fdomain_probe, 201 .remove = fdomain_detach, 202 .id_table = fdomain_ids, 203 .resume = fdomain_resume, 204}; 205 206static int __init init_fdomain_cs(void) 207{ 208 return pcmcia_register_driver(&fdomain_cs_driver); 209} 210 211static void __exit exit_fdomain_cs(void) 212{ 213 pcmcia_unregister_driver(&fdomain_cs_driver); 214} 215 216module_init(init_fdomain_cs); 217module_exit(exit_fdomain_cs); 218