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/cs_types.h> 54 #include <pcmcia/cs.h> 55 #include <pcmcia/cistpl.h> 56 #include <pcmcia/ds.h> 57 58 #ifdef PCMCIA_DEBUG 59 static int pc_debug = PCMCIA_DEBUG; 60 module_param(pc_debug, int, 0644); 61 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) 62 static char *version = 63 "aha152x_cs.c 1.54 2000/06/12 21:27:25 (David Hinds)"; 64 #else 65 #define DEBUG(n, args...) 66 #endif 67 68 /*====================================================================*/ 69 70 /* Parameters that can be set with 'insmod' */ 71 72 /* SCSI bus setup options */ 73 static int host_id = 7; 74 static int reconnect = 1; 75 static int parity = 1; 76 static int synchronous = 1; 77 static int reset_delay = 100; 78 static int ext_trans = 0; 79 80 module_param(host_id, int, 0); 81 module_param(reconnect, int, 0); 82 module_param(parity, int, 0); 83 module_param(synchronous, int, 0); 84 module_param(reset_delay, int, 0); 85 module_param(ext_trans, int, 0); 86 87 MODULE_LICENSE("Dual MPL/GPL"); 88 89 /*====================================================================*/ 90 91 typedef struct scsi_info_t { 92 dev_link_t link; 93 dev_node_t node; 94 struct Scsi_Host *host; 95 } scsi_info_t; 96 97 static void aha152x_release_cs(dev_link_t *link); 98 static int aha152x_event(event_t event, int priority, 99 event_callback_args_t *args); 100 101 static dev_link_t *aha152x_attach(void); 102 static void aha152x_detach(dev_link_t *); 103 104 static dev_link_t *dev_list; 105 static dev_info_t dev_info = "aha152x_cs"; 106 107 static dev_link_t *aha152x_attach(void) 108 { 109 scsi_info_t *info; 110 client_reg_t client_reg; 111 dev_link_t *link; 112 int ret; 113 114 DEBUG(0, "aha152x_attach()\n"); 115 116 /* Create new SCSI device */ 117 info = kmalloc(sizeof(*info), GFP_KERNEL); 118 if (!info) return NULL; 119 memset(info, 0, sizeof(*info)); 120 link = &info->link; link->priv = info; 121 122 link->io.NumPorts1 = 0x20; 123 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 124 link->io.IOAddrLines = 10; 125 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; 126 link->irq.IRQInfo1 = IRQ_LEVEL_ID; 127 link->conf.Attributes = CONF_ENABLE_IRQ; 128 link->conf.Vcc = 50; 129 link->conf.IntType = INT_MEMORY_AND_IO; 130 link->conf.Present = PRESENT_OPTION; 131 132 /* Register with Card Services */ 133 link->next = dev_list; 134 dev_list = link; 135 client_reg.dev_info = &dev_info; 136 client_reg.Version = 0x0210; 137 client_reg.event_callback_args.client_data = link; 138 ret = pcmcia_register_client(&link->handle, &client_reg); 139 if (ret != 0) { 140 cs_error(link->handle, RegisterClient, ret); 141 aha152x_detach(link); 142 return NULL; 143 } 144 145 return link; 146 } /* aha152x_attach */ 147 148 /*====================================================================*/ 149 150 static void aha152x_detach(dev_link_t *link) 151 { 152 dev_link_t **linkp; 153 154 DEBUG(0, "aha152x_detach(0x%p)\n", link); 155 156 /* Locate device structure */ 157 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) 158 if (*linkp == link) break; 159 if (*linkp == NULL) 160 return; 161 162 if (link->state & DEV_CONFIG) 163 aha152x_release_cs(link); 164 165 if (link->handle) 166 pcmcia_deregister_client(link->handle); 167 168 /* Unlink device structure, free bits */ 169 *linkp = link->next; 170 kfree(link->priv); 171 172 } /* aha152x_detach */ 173 174 /*====================================================================*/ 175 176 #define CS_CHECK(fn, ret) \ 177 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) 178 179 static void aha152x_config_cs(dev_link_t *link) 180 { 181 client_handle_t handle = link->handle; 182 scsi_info_t *info = link->priv; 183 struct aha152x_setup s; 184 tuple_t tuple; 185 cisparse_t parse; 186 int i, last_ret, last_fn; 187 u_char tuple_data[64]; 188 struct Scsi_Host *host; 189 190 DEBUG(0, "aha152x_config(0x%p)\n", link); 191 192 tuple.DesiredTuple = CISTPL_CONFIG; 193 tuple.TupleData = tuple_data; 194 tuple.TupleDataMax = 64; 195 tuple.TupleOffset = 0; 196 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); 197 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); 198 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); 199 link->conf.ConfigBase = parse.config.base; 200 201 /* Configure card */ 202 link->state |= DEV_CONFIG; 203 204 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; 205 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); 206 while (1) { 207 if (pcmcia_get_tuple_data(handle, &tuple) != 0 || 208 pcmcia_parse_tuple(handle, &tuple, &parse) != 0) 209 goto next_entry; 210 /* For New Media T&J, look for a SCSI window */ 211 if (parse.cftable_entry.io.win[0].len >= 0x20) 212 link->io.BasePort1 = parse.cftable_entry.io.win[0].base; 213 else if ((parse.cftable_entry.io.nwin > 1) && 214 (parse.cftable_entry.io.win[1].len >= 0x20)) 215 link->io.BasePort1 = parse.cftable_entry.io.win[1].base; 216 if ((parse.cftable_entry.io.nwin > 0) && 217 (link->io.BasePort1 < 0xffff)) { 218 link->conf.ConfigIndex = parse.cftable_entry.index; 219 i = pcmcia_request_io(handle, &link->io); 220 if (i == CS_SUCCESS) break; 221 } 222 next_entry: 223 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple)); 224 } 225 226 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq)); 227 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); 228 229 /* Set configuration options for the aha152x driver */ 230 memset(&s, 0, sizeof(s)); 231 s.conf = "PCMCIA setup"; 232 s.io_port = link->io.BasePort1; 233 s.irq = link->irq.AssignedIRQ; 234 s.scsiid = host_id; 235 s.reconnect = reconnect; 236 s.parity = parity; 237 s.synchronous = synchronous; 238 s.delay = reset_delay; 239 if (ext_trans) 240 s.ext_trans = ext_trans; 241 242 host = aha152x_probe_one(&s); 243 if (host == NULL) { 244 printk(KERN_INFO "aha152x_cs: no SCSI devices found\n"); 245 goto cs_failed; 246 } 247 248 sprintf(info->node.dev_name, "scsi%d", host->host_no); 249 link->dev = &info->node; 250 info->host = host; 251 252 link->state &= ~DEV_CONFIG_PENDING; 253 return; 254 255 cs_failed: 256 cs_error(link->handle, last_fn, last_ret); 257 aha152x_release_cs(link); 258 return; 259 } 260 261 static void aha152x_release_cs(dev_link_t *link) 262 { 263 scsi_info_t *info = link->priv; 264 265 aha152x_release(info->host); 266 link->dev = NULL; 267 268 pcmcia_release_configuration(link->handle); 269 pcmcia_release_io(link->handle, &link->io); 270 pcmcia_release_irq(link->handle, &link->irq); 271 272 link->state &= ~DEV_CONFIG; 273 } 274 275 static int aha152x_event(event_t event, int priority, 276 event_callback_args_t *args) 277 { 278 dev_link_t *link = args->client_data; 279 scsi_info_t *info = link->priv; 280 281 DEBUG(0, "aha152x_event(0x%06x)\n", event); 282 283 switch (event) { 284 case CS_EVENT_CARD_REMOVAL: 285 link->state &= ~DEV_PRESENT; 286 if (link->state & DEV_CONFIG) 287 aha152x_release_cs(link); 288 break; 289 case CS_EVENT_CARD_INSERTION: 290 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; 291 aha152x_config_cs(link); 292 break; 293 case CS_EVENT_PM_SUSPEND: 294 link->state |= DEV_SUSPEND; 295 /* Fall through... */ 296 case CS_EVENT_RESET_PHYSICAL: 297 if (link->state & DEV_CONFIG) 298 pcmcia_release_configuration(link->handle); 299 break; 300 case CS_EVENT_PM_RESUME: 301 link->state &= ~DEV_SUSPEND; 302 /* Fall through... */ 303 case CS_EVENT_CARD_RESET: 304 if (link->state & DEV_CONFIG) { 305 Scsi_Cmnd tmp; 306 pcmcia_request_configuration(link->handle, &link->conf); 307 tmp.device->host = info->host; 308 aha152x_host_reset(&tmp); 309 } 310 break; 311 } 312 return 0; 313 } 314 315 static struct pcmcia_device_id aha152x_ids[] = { 316 PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e), 317 PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e), 318 PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20), 319 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c), 320 PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b), 321 PCMCIA_DEVICE_NULL, 322 }; 323 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids); 324 325 static struct pcmcia_driver aha152x_cs_driver = { 326 .owner = THIS_MODULE, 327 .drv = { 328 .name = "aha152x_cs", 329 }, 330 .attach = aha152x_attach, 331 .event = aha152x_event, 332 .detach = aha152x_detach, 333 .id_table = aha152x_ids, 334 }; 335 336 static int __init init_aha152x_cs(void) 337 { 338 return pcmcia_register_driver(&aha152x_cs_driver); 339 } 340 341 static void __exit exit_aha152x_cs(void) 342 { 343 pcmcia_unregister_driver(&aha152x_cs_driver); 344 BUG_ON(dev_list != NULL); 345 } 346 347 module_init(init_aha152x_cs); 348 module_exit(exit_aha152x_cs); 349 350