1 /*====================================================================== 2 3 A driver for Adaptec AHA152X-compatible PCMCIA SCSI cards. 4 5 This driver supports the Adaptec AHA-1460, the New Media Bus 6 Toaster, and the New Media Toast & Jam. 7 8 aha152x_cs.c 1.54 2000/06/12 21:27:25 9 10 The contents of this file are subject to the Mozilla Public 11 License Version 1.1 (the "License"); you may not use this file 12 except in compliance with the License. You may obtain a copy of 13 the License at http://www.mozilla.org/MPL/ 14 15 Software distributed under the License is distributed on an "AS 16 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 17 implied. See the License for the specific language governing 18 rights and limitations under the License. 19 20 The initial developer of the original code is David A. Hinds 21 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 22 are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 23 24 Alternatively, the contents of this file may be used under the 25 terms of the GNU General Public License version 2 (the "GPL"), in which 26 case the provisions of the GPL are applicable instead of the 27 above. If you wish to allow the use of your version of this file 28 only under the terms of the GPL and not to allow others to use 29 your version of this file under the MPL, indicate your decision 30 by deleting the provisions above and replace them with the notice 31 and other provisions required by the GPL. If you do not delete 32 the provisions above, a recipient may use your version of this 33 file under either the MPL or the GPL. 34 35 ======================================================================*/ 36 37 #include <linux/module.h> 38 #include <linux/init.h> 39 #include <linux/kernel.h> 40 #include <linux/sched.h> 41 #include <linux/slab.h> 42 #include <linux/string.h> 43 #include <linux/ioport.h> 44 #include <scsi/scsi.h> 45 #include <linux/major.h> 46 #include <linux/blkdev.h> 47 #include <scsi/scsi_ioctl.h> 48 49 #include "scsi.h" 50 #include <scsi/scsi_host.h> 51 #include "aha152x.h" 52 53 #include <pcmcia/version.h> 54 #include <pcmcia/cs_types.h> 55 #include <pcmcia/cs.h> 56 #include <pcmcia/cistpl.h> 57 #include <pcmcia/ds.h> 58 59 #ifdef PCMCIA_DEBUG 60 static int pc_debug = PCMCIA_DEBUG; 61 module_param(pc_debug, int, 0644); 62 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) 63 static char *version = 64 "aha152x_cs.c 1.54 2000/06/12 21:27:25 (David Hinds)"; 65 #else 66 #define DEBUG(n, args...) 67 #endif 68 69 /*====================================================================*/ 70 71 /* Parameters that can be set with 'insmod' */ 72 73 /* SCSI bus setup options */ 74 static int host_id = 7; 75 static int reconnect = 1; 76 static int parity = 1; 77 static int synchronous = 1; 78 static int reset_delay = 100; 79 static int ext_trans = 0; 80 81 module_param(host_id, int, 0); 82 module_param(reconnect, int, 0); 83 module_param(parity, int, 0); 84 module_param(synchronous, int, 0); 85 module_param(reset_delay, int, 0); 86 module_param(ext_trans, int, 0); 87 88 MODULE_LICENSE("Dual MPL/GPL"); 89 90 /*====================================================================*/ 91 92 typedef struct scsi_info_t { 93 dev_link_t link; 94 dev_node_t node; 95 struct Scsi_Host *host; 96 } scsi_info_t; 97 98 static void aha152x_release_cs(dev_link_t *link); 99 static int aha152x_event(event_t event, int priority, 100 event_callback_args_t *args); 101 102 static dev_link_t *aha152x_attach(void); 103 static void aha152x_detach(dev_link_t *); 104 105 static dev_link_t *dev_list; 106 static dev_info_t dev_info = "aha152x_cs"; 107 108 static dev_link_t *aha152x_attach(void) 109 { 110 scsi_info_t *info; 111 client_reg_t client_reg; 112 dev_link_t *link; 113 int ret; 114 115 DEBUG(0, "aha152x_attach()\n"); 116 117 /* Create new SCSI device */ 118 info = kmalloc(sizeof(*info), GFP_KERNEL); 119 if (!info) return NULL; 120 memset(info, 0, sizeof(*info)); 121 link = &info->link; link->priv = info; 122 123 link->io.NumPorts1 = 0x20; 124 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 125 link->io.IOAddrLines = 10; 126 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; 127 link->irq.IRQInfo1 = IRQ_LEVEL_ID; 128 link->conf.Attributes = CONF_ENABLE_IRQ; 129 link->conf.Vcc = 50; 130 link->conf.IntType = INT_MEMORY_AND_IO; 131 link->conf.Present = PRESENT_OPTION; 132 133 /* Register with Card Services */ 134 link->next = dev_list; 135 dev_list = link; 136 client_reg.dev_info = &dev_info; 137 client_reg.event_handler = &aha152x_event; 138 client_reg.EventMask = 139 CS_EVENT_RESET_REQUEST | CS_EVENT_CARD_RESET | 140 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | 141 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; 142 client_reg.Version = 0x0210; 143 client_reg.event_callback_args.client_data = link; 144 ret = pcmcia_register_client(&link->handle, &client_reg); 145 if (ret != 0) { 146 cs_error(link->handle, RegisterClient, ret); 147 aha152x_detach(link); 148 return NULL; 149 } 150 151 return link; 152 } /* aha152x_attach */ 153 154 /*====================================================================*/ 155 156 static void aha152x_detach(dev_link_t *link) 157 { 158 dev_link_t **linkp; 159 160 DEBUG(0, "aha152x_detach(0x%p)\n", link); 161 162 /* Locate device structure */ 163 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) 164 if (*linkp == link) break; 165 if (*linkp == NULL) 166 return; 167 168 if (link->state & DEV_CONFIG) 169 aha152x_release_cs(link); 170 171 if (link->handle) 172 pcmcia_deregister_client(link->handle); 173 174 /* Unlink device structure, free bits */ 175 *linkp = link->next; 176 kfree(link->priv); 177 178 } /* aha152x_detach */ 179 180 /*====================================================================*/ 181 182 #define CS_CHECK(fn, ret) \ 183 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) 184 185 static void aha152x_config_cs(dev_link_t *link) 186 { 187 client_handle_t handle = link->handle; 188 scsi_info_t *info = link->priv; 189 struct aha152x_setup s; 190 tuple_t tuple; 191 cisparse_t parse; 192 int i, last_ret, last_fn; 193 u_char tuple_data[64]; 194 struct Scsi_Host *host; 195 196 DEBUG(0, "aha152x_config(0x%p)\n", link); 197 198 tuple.DesiredTuple = CISTPL_CONFIG; 199 tuple.TupleData = tuple_data; 200 tuple.TupleDataMax = 64; 201 tuple.TupleOffset = 0; 202 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); 203 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); 204 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); 205 link->conf.ConfigBase = parse.config.base; 206 207 /* Configure card */ 208 link->state |= DEV_CONFIG; 209 210 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; 211 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); 212 while (1) { 213 if (pcmcia_get_tuple_data(handle, &tuple) != 0 || 214 pcmcia_parse_tuple(handle, &tuple, &parse) != 0) 215 goto next_entry; 216 /* For New Media T&J, look for a SCSI window */ 217 if (parse.cftable_entry.io.win[0].len >= 0x20) 218 link->io.BasePort1 = parse.cftable_entry.io.win[0].base; 219 else if ((parse.cftable_entry.io.nwin > 1) && 220 (parse.cftable_entry.io.win[1].len >= 0x20)) 221 link->io.BasePort1 = parse.cftable_entry.io.win[1].base; 222 if ((parse.cftable_entry.io.nwin > 0) && 223 (link->io.BasePort1 < 0xffff)) { 224 link->conf.ConfigIndex = parse.cftable_entry.index; 225 i = pcmcia_request_io(handle, &link->io); 226 if (i == CS_SUCCESS) break; 227 } 228 next_entry: 229 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple)); 230 } 231 232 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq)); 233 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); 234 235 /* Set configuration options for the aha152x driver */ 236 memset(&s, 0, sizeof(s)); 237 s.conf = "PCMCIA setup"; 238 s.io_port = link->io.BasePort1; 239 s.irq = link->irq.AssignedIRQ; 240 s.scsiid = host_id; 241 s.reconnect = reconnect; 242 s.parity = parity; 243 s.synchronous = synchronous; 244 s.delay = reset_delay; 245 if (ext_trans) 246 s.ext_trans = ext_trans; 247 248 host = aha152x_probe_one(&s); 249 if (host == NULL) { 250 printk(KERN_INFO "aha152x_cs: no SCSI devices found\n"); 251 goto cs_failed; 252 } 253 254 sprintf(info->node.dev_name, "scsi%d", host->host_no); 255 link->dev = &info->node; 256 info->host = host; 257 258 link->state &= ~DEV_CONFIG_PENDING; 259 return; 260 261 cs_failed: 262 cs_error(link->handle, last_fn, last_ret); 263 aha152x_release_cs(link); 264 return; 265 } 266 267 static void aha152x_release_cs(dev_link_t *link) 268 { 269 scsi_info_t *info = link->priv; 270 271 aha152x_release(info->host); 272 link->dev = NULL; 273 274 pcmcia_release_configuration(link->handle); 275 pcmcia_release_io(link->handle, &link->io); 276 pcmcia_release_irq(link->handle, &link->irq); 277 278 link->state &= ~DEV_CONFIG; 279 } 280 281 static int aha152x_event(event_t event, int priority, 282 event_callback_args_t *args) 283 { 284 dev_link_t *link = args->client_data; 285 scsi_info_t *info = link->priv; 286 287 DEBUG(0, "aha152x_event(0x%06x)\n", event); 288 289 switch (event) { 290 case CS_EVENT_CARD_REMOVAL: 291 link->state &= ~DEV_PRESENT; 292 if (link->state & DEV_CONFIG) 293 aha152x_release_cs(link); 294 break; 295 case CS_EVENT_CARD_INSERTION: 296 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; 297 aha152x_config_cs(link); 298 break; 299 case CS_EVENT_PM_SUSPEND: 300 link->state |= DEV_SUSPEND; 301 /* Fall through... */ 302 case CS_EVENT_RESET_PHYSICAL: 303 if (link->state & DEV_CONFIG) 304 pcmcia_release_configuration(link->handle); 305 break; 306 case CS_EVENT_PM_RESUME: 307 link->state &= ~DEV_SUSPEND; 308 /* Fall through... */ 309 case CS_EVENT_CARD_RESET: 310 if (link->state & DEV_CONFIG) { 311 Scsi_Cmnd tmp; 312 pcmcia_request_configuration(link->handle, &link->conf); 313 tmp.device->host = info->host; 314 aha152x_host_reset(&tmp); 315 } 316 break; 317 } 318 return 0; 319 } 320 321 static struct pcmcia_driver aha152x_cs_driver = { 322 .owner = THIS_MODULE, 323 .drv = { 324 .name = "aha152x_cs", 325 }, 326 .attach = aha152x_attach, 327 .detach = aha152x_detach, 328 }; 329 330 static int __init init_aha152x_cs(void) 331 { 332 return pcmcia_register_driver(&aha152x_cs_driver); 333 } 334 335 static void __exit exit_aha152x_cs(void) 336 { 337 pcmcia_unregister_driver(&aha152x_cs_driver); 338 BUG_ON(dev_list != NULL); 339 } 340 341 module_init(init_aha152x_cs); 342 module_exit(exit_aha152x_cs); 343 344