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
b1pci_procinfo(struct capi_ctr * ctrl)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
b1pci_probe(struct capicardparams * p,struct pci_dev * pdev)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.proc_fops = &b1ctl_proc_fops;
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
b1pci_remove(struct pci_dev * pdev)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
b1pciv4_procinfo(struct capi_ctr * ctrl)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
b1pciv4_probe(struct capicardparams * p,struct pci_dev * pdev)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.proc_fops = &b1dmactl_proc_fops;
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
b1pciv4_remove(struct pci_dev * pdev)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
b1pci_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)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(¶m, pdev);
325 #else
326 retval = b1pci_probe(¶m, 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(¶m, 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
b1pci_pci_remove(struct pci_dev * pdev)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
b1pci_init(void)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
b1pci_exit(void)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);
417