drivers/isdn/hardware/avm/b1pci.c

   1 /* $Id: b1pci.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
   2  *
   3  * Module for AVM B1 PCI-card.
   4  *
   5  * Copyright 1999 by Carsten Paeth <calle@calle.de>
   6  *
   7  * This software may be used and distributed according to the terms
   8  * of the GNU General Public License, incorporated herein by reference.
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/kernel.h>
  14 #include <linux/skbuff.h>
  15 #include <linux/delay.h>
  16 #include <linux/mm.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/ioport.h>
  19 #include <linux/pci.h>
  20 #include <linux/capi.h>
  21 #include <asm/io.h>
  22 #include <linux/init.h>
  23 #include <linux/isdn/capicmd.h>
  24 #include <linux/isdn/capiutil.h>
  25 #include <linux/isdn/capilli.h>
  26 #include "avmcard.h"
  27
  28 /* ------------------------------------------------------------- */
  29
  30 static char *revision = "$Revision: 1.1.2.2 $";
  31
  32 /* ------------------------------------------------------------- */
  33
  34 static struct pci_device_id b1pci_pci_tbl[] = {
  35         { PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_B1, PCI_ANY_ID, PCI_ANY_ID },
  36         { }                             /* Terminating entry */
  37 };
  38
  39 MODULE_DEVICE_TABLE(pci, b1pci_pci_tbl);
  40 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 PCI card");
  41 MODULE_AUTHOR("Carsten Paeth");
  42 MODULE_LICENSE("GPL");
  43
  44 /* ------------------------------------------------------------- */
  45
  46 static char *b1pci_procinfo(struct capi_ctr *ctrl)
  47 {
  48         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
  49
  50         if (!cinfo)
  51                 return "";
  52         sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d",
  53                 cinfo->cardname[0] ? cinfo->cardname : "-",
  54                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
  55                 cinfo->card ? cinfo->card->port : 0x0,
  56                 cinfo->card ? cinfo->card->irq : 0,
  57                 cinfo->card ? cinfo->card->revision : 0
  58                 );
  59         return cinfo->infobuf;
  60 }
  61
  62 /* ------------------------------------------------------------- */
  63
  64 static int b1pci_probe(struct capicardparams *p, struct pci_dev *pdev)
  65 {
  66         avmcard *card;
  67         avmctrl_info *cinfo;
  68         int retval;
  69
  70         card = b1_alloc_card(1);
  71         if (!card) {
  72                 printk(KERN_WARNING "b1pci: no memory.\n");
  73                 retval = -ENOMEM;
  74                 goto err;
  75         }
  76
  77         cinfo = card->ctrlinfo;
  78         sprintf(card->name, "b1pci-%x", p->port);
  79         card->port = p->port;
  80         card->irq = p->irq;
  81         card->cardtype = avm_b1pci;
  82
  83         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
  84                 printk(KERN_WARNING "b1pci: ports 0x%03x-0x%03x in use.\n",
  85                        card->port, card->port + AVMB1_PORTLEN);
  86                 retval = -EBUSY;
  87                 goto err_free;
  88         }
  89         b1_reset(card->port);
  90         retval = b1_detect(card->port, card->cardtype);
  91         if (retval) {
  92                 printk(KERN_NOTICE "b1pci: NO card at 0x%x (%d)\n",
  93                        card->port, retval);
  94                 retval = -ENODEV;
  95                 goto err_release_region;
  96         }
  97         b1_reset(card->port);
  98         b1_getrevision(card);
  99
 100         retval = request_irq(card->irq, b1_interrupt, IRQF_SHARED, card->name, card);
 101         if (retval) {
 102                 printk(KERN_ERR "b1pci: unable to get IRQ %d.\n", card->irq);
 103                 retval = -EBUSY;
 104                 goto err_release_region;
 105         }
 106
 107         cinfo->capi_ctrl.driver_name   = "b1pci";
 108         cinfo->capi_ctrl.driverdata    = cinfo;
 109         cinfo->capi_ctrl.register_appl = b1_register_appl;
 110         cinfo->capi_ctrl.release_appl  = b1_release_appl;
 111         cinfo->capi_ctrl.send_message  = b1_send_message;
 112         cinfo->capi_ctrl.load_firmware = b1_load_firmware;
 113         cinfo->capi_ctrl.reset_ctr     = b1_reset_ctr;
 114         cinfo->capi_ctrl.procinfo      = b1pci_procinfo;
 115         cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
 116         strcpy(cinfo->capi_ctrl.name, card->name);
 117         cinfo->capi_ctrl.owner         = THIS_MODULE;
 118
 119         retval = attach_capi_ctr(&cinfo->capi_ctrl);
 120         if (retval) {
 121                 printk(KERN_ERR "b1pci: attach controller failed.\n");
 122                 goto err_free_irq;
 123         }
 124
 125         if (card->revision >= 4) {
 126                 printk(KERN_INFO "b1pci: AVM B1 PCI V4 at i/o %#x, irq %d, revision %d (no dma)\n",
 127                        card->port, card->irq, card->revision);
 128         } else {
 129                 printk(KERN_INFO "b1pci: AVM B1 PCI at i/o %#x, irq %d, revision %d\n",
 130                        card->port, card->irq, card->revision);
 131         }
 132
 133         pci_set_drvdata(pdev, card);
 134         return 0;
 135
 136  err_free_irq:
 137         free_irq(card->irq, card);
 138  err_release_region:
 139         release_region(card->port, AVMB1_PORTLEN);
 140  err_free:
 141         b1_free_card(card);
 142  err:
 143         return retval;
 144 }
 145
 146 static void b1pci_remove(struct pci_dev *pdev)
 147 {
 148         avmcard *card = pci_get_drvdata(pdev);
 149         avmctrl_info *cinfo = card->ctrlinfo;
 150         unsigned int port = card->port;
 151
 152         b1_reset(port);
 153         b1_reset(port);
 154
 155         detach_capi_ctr(&cinfo->capi_ctrl);
 156         free_irq(card->irq, card);
 157         release_region(card->port, AVMB1_PORTLEN);
 158         b1_free_card(card);
 159 }
 160
 161 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 162 /* ------------------------------------------------------------- */
 163
 164 static char *b1pciv4_procinfo(struct capi_ctr *ctrl)
 165 {
 166         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 167
 168         if (!cinfo)
 169                 return "";
 170         sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx r%d",
 171                 cinfo->cardname[0] ? cinfo->cardname : "-",
 172                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
 173                 cinfo->card ? cinfo->card->port : 0x0,
 174                 cinfo->card ? cinfo->card->irq : 0,
 175                 cinfo->card ? cinfo->card->membase : 0,
 176                 cinfo->card ? cinfo->card->revision : 0
 177                 );
 178         return cinfo->infobuf;
 179 }
 180
 181 /* ------------------------------------------------------------- */
 182
 183 static int b1pciv4_probe(struct capicardparams *p, struct pci_dev *pdev)
 184 {
 185         avmcard *card;
 186         avmctrl_info *cinfo;
 187         int retval;
 188
 189         card = b1_alloc_card(1);
 190         if (!card) {
 191                 printk(KERN_WARNING "b1pci: no memory.\n");
 192                 retval = -ENOMEM;
 193                 goto err;
 194         }
 195
 196         card->dma = avmcard_dma_alloc("b1pci", pdev, 2048+128, 2048+128);
 197         if (!card->dma) {
 198                 printk(KERN_WARNING "b1pci: dma alloc.\n");
 199                 retval = -ENOMEM;
 200                 goto err_free;
 201         }
 202
 203         cinfo = card->ctrlinfo;
 204         sprintf(card->name, "b1pciv4-%x", p->port);
 205         card->port = p->port;
 206         card->irq = p->irq;
 207         card->membase = p->membase;
 208         card->cardtype = avm_b1pci;
 209
 210         if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
 211                 printk(KERN_WARNING "b1pci: ports 0x%03x-0x%03x in use.\n",
 212                        card->port, card->port + AVMB1_PORTLEN);
 213                 retval = -EBUSY;
 214                 goto err_free_dma;
 215         }
 216
 217         card->mbase = ioremap(card->membase, 64);
 218         if (!card->mbase) {
 219                 printk(KERN_NOTICE "b1pci: can't remap memory at 0x%lx\n",
 220                        card->membase);
 221                 retval = -ENOMEM;
 222                 goto err_release_region;
 223         }
 224
 225         b1dma_reset(card);
 226
 227         retval = b1pciv4_detect(card);
 228         if (retval) {
 229                 printk(KERN_NOTICE "b1pci: NO card at 0x%x (%d)\n",
 230                        card->port, retval);
 231                 retval = -ENODEV;
 232                 goto err_unmap;
 233         }
 234         b1dma_reset(card);
 235         b1_getrevision(card);
 236
 237         retval = request_irq(card->irq, b1dma_interrupt, IRQF_SHARED, card->name, card);
 238         if (retval) {
 239                 printk(KERN_ERR "b1pci: unable to get IRQ %d.\n",
 240                        card->irq);
 241                 retval = -EBUSY;
 242                 goto err_unmap;
 243         }
 244
 245         cinfo->capi_ctrl.owner         = THIS_MODULE;
 246         cinfo->capi_ctrl.driver_name   = "b1pciv4";
 247         cinfo->capi_ctrl.driverdata    = cinfo;
 248         cinfo->capi_ctrl.register_appl = b1dma_register_appl;
 249         cinfo->capi_ctrl.release_appl  = b1dma_release_appl;
 250         cinfo->capi_ctrl.send_message  = b1dma_send_message;
 251         cinfo->capi_ctrl.load_firmware = b1dma_load_firmware;
 252         cinfo->capi_ctrl.reset_ctr     = b1dma_reset_ctr;
 253         cinfo->capi_ctrl.procinfo      = b1pciv4_procinfo;
 254         cinfo->capi_ctrl.ctr_read_proc = b1dmactl_read_proc;
 255         strcpy(cinfo->capi_ctrl.name, card->name);
 256
 257         retval = attach_capi_ctr(&cinfo->capi_ctrl);
 258         if (retval) {
 259                 printk(KERN_ERR "b1pci: attach controller failed.\n");
 260                 goto err_free_irq;
 261         }
 262         card->cardnr = cinfo->capi_ctrl.cnr;
 263
 264         printk(KERN_INFO "b1pci: AVM B1 PCI V4 at i/o %#x, irq %d, mem %#lx, revision %d (dma)\n",
 265                card->port, card->irq, card->membase, card->revision);
 266
 267         pci_set_drvdata(pdev, card);
 268         return 0;
 269
 270  err_free_irq:
 271         free_irq(card->irq, card);
 272  err_unmap:
 273         iounmap(card->mbase);
 274  err_release_region:
 275         release_region(card->port, AVMB1_PORTLEN);
 276  err_free_dma:
 277         avmcard_dma_free(card->dma);
 278  err_free:
 279         b1_free_card(card);
 280  err:
 281         return retval;
 282
 283 }
 284
 285 static void b1pciv4_remove(struct pci_dev *pdev)
 286 {
 287         avmcard *card = pci_get_drvdata(pdev);
 288         avmctrl_info *cinfo = card->ctrlinfo;
 289
 290         b1dma_reset(card);
 291
 292         detach_capi_ctr(&cinfo->capi_ctrl);
 293         free_irq(card->irq, card);
 294         iounmap(card->mbase);
 295         release_region(card->port, AVMB1_PORTLEN);
 296         avmcard_dma_free(card->dma);
 297         b1_free_card(card);
 298 }
 299
 300 #endif /* CONFIG_ISDN_DRV_AVMB1_B1PCIV4 */
 301
 302 static int __devinit b1pci_pci_probe(struct pci_dev *pdev,
 303                                      const struct pci_device_id *ent)
 304 {
 305         struct capicardparams param;
 306         int retval;
 307
 308         if (pci_enable_device(pdev) < 0) {
 309                 printk(KERN_ERR "b1pci: failed to enable AVM-B1\n");
 310                 return -ENODEV;
 311         }
 312         param.irq = pdev->irq;
 313
 314         if (pci_resource_start(pdev, 2)) { /* B1 PCI V4 */
 315 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 316                 pci_set_master(pdev);
 317 #endif
 318                 param.membase = pci_resource_start(pdev, 0);
 319                 param.port = pci_resource_start(pdev, 2);
 320
 321                 printk(KERN_INFO "b1pci: PCI BIOS reports AVM-B1 V4 at i/o %#x, irq %d, mem %#x\n",
 322                        param.port, param.irq, param.membase);
 323 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 324                 retval = b1pciv4_probe(&param, pdev);
 325 #else
 326                 retval = b1pci_probe(&param, pdev);
 327 #endif
 328                 if (retval != 0) {
 329                         printk(KERN_ERR "b1pci: no AVM-B1 V4 at i/o %#x, irq %d, mem %#x detected\n",
 330                                param.port, param.irq, param.membase);
 331                 }
 332         } else {
 333                 param.membase = 0;
 334                 param.port = pci_resource_start(pdev, 1);
 335
 336                 printk(KERN_INFO "b1pci: PCI BIOS reports AVM-B1 at i/o %#x, irq %d\n",
 337                        param.port, param.irq);
 338                 retval = b1pci_probe(&param, pdev);
 339                 if (retval != 0) {
 340                         printk(KERN_ERR "b1pci: no AVM-B1 at i/o %#x, irq %d detected\n",
 341                                param.port, param.irq);
 342                 }
 343         }
 344         return retval;
 345 }
 346
 347 static void __devexit b1pci_pci_remove(struct pci_dev *pdev)
 348 {
 349 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 350         avmcard *card = pci_get_drvdata(pdev);
 351
 352         if (card->dma)
 353                 b1pciv4_remove(pdev);
 354         else
 355                 b1pci_remove(pdev);
 356 #else
 357         b1pci_remove(pdev);
 358 #endif
 359 }
 360
 361 static struct pci_driver b1pci_pci_driver = {
 362         .name           = "b1pci",
 363         .id_table       = b1pci_pci_tbl,
 364         .probe          = b1pci_pci_probe,
 365         .remove         = __devexit_p(b1pci_pci_remove),
 366 };
 367
 368 static struct capi_driver capi_driver_b1pci = {
 369         .name           = "b1pci",
 370         .revision       = "1.0",
 371 };
 372 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 373 static struct capi_driver capi_driver_b1pciv4 = {
 374         .name           = "b1pciv4",
 375         .revision       = "1.0",
 376 };
 377 #endif
 378
 379 static int __init b1pci_init(void)
 380 {
 381         char *p;
 382         char rev[32];
 383         int err;
 384
 385         if ((p = strchr(revision, ':')) != NULL && p[1]) {
 386                 strlcpy(rev, p + 2, 32);
 387                 if ((p = strchr(rev, '$')) != NULL && p > rev)
 388                    *(p-1) = 0;
 389         } else
 390                 strcpy(rev, "1.0");
 391
 392
 393         err = pci_register_driver(&b1pci_pci_driver);
 394         if (!err) {
 395                 strlcpy(capi_driver_b1pci.revision, rev, 32);
 396                 register_capi_driver(&capi_driver_b1pci);
 397 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 398                 strlcpy(capi_driver_b1pciv4.revision, rev, 32);
 399                 register_capi_driver(&capi_driver_b1pciv4);
 400 #endif
 401                 printk(KERN_INFO "b1pci: revision %s\n", rev);
 402         }
 403         return err;
 404 }
 405
 406 static void __exit b1pci_exit(void)
 407 {
 408         unregister_capi_driver(&capi_driver_b1pci);
 409 #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
 410         unregister_capi_driver(&capi_driver_b1pciv4);
 411 #endif
 412         pci_unregister_driver(&b1pci_pci_driver);
 413 }
 414
 415 module_init(b1pci_init);
 416 module_exit(b1pci_exit);