PageRenderTime 55ms CodeModel.GetById 14ms app.highlight 35ms RepoModel.GetById 1ms app.codeStats 1ms

/drivers/isdn/hardware/eicon/divasmain.c

http://github.com/mirrors/linux
C | 844 lines | 649 code | 118 blank | 77 comment | 50 complexity | 2a5d05dd84d41bdf940236c35fbc1878 MD5 | raw file
  1/* $Id: divasmain.c,v 1.55.4.6 2005/02/09 19:28:20 armin Exp $
  2 *
  3 * Low level driver for Eicon DIVA Server ISDN cards.
  4 *
  5 * Copyright 2000-2003 by Armin Schindler (mac@melware.de)
  6 * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
  7 *
  8 * This software may be used and distributed according to the terms
  9 * of the GNU General Public License, incorporated herein by reference.
 10 */
 11
 12#include <linux/module.h>
 13#include <linux/init.h>
 14#include <linux/kernel.h>
 15#include <asm/uaccess.h>
 16#include <asm/io.h>
 17#include <linux/ioport.h>
 18#include <linux/pci.h>
 19#include <linux/interrupt.h>
 20#include <linux/list.h>
 21#include <linux/poll.h>
 22#include <linux/kmod.h>
 23
 24#include "platform.h"
 25#undef ID_MASK
 26#undef N_DATA
 27#include "pc.h"
 28#include "di_defs.h"
 29#include "divasync.h"
 30#include "diva.h"
 31#include "di.h"
 32#include "io.h"
 33#include "xdi_msg.h"
 34#include "xdi_adapter.h"
 35#include "xdi_vers.h"
 36#include "diva_dma.h"
 37#include "diva_pci.h"
 38
 39static char *main_revision = "$Revision: 1.55.4.6 $";
 40
 41static int major;
 42
 43static int dbgmask;
 44
 45MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
 46MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
 47MODULE_LICENSE("GPL");
 48
 49module_param(dbgmask, int, 0);
 50MODULE_PARM_DESC(dbgmask, "initial debug mask");
 51
 52static char *DRIVERNAME =
 53	"Eicon DIVA Server driver (http://www.melware.net)";
 54static char *DRIVERLNAME = "divas";
 55static char *DEVNAME = "Divas";
 56char *DRIVERRELEASE_DIVAS = "2.0";
 57
 58extern irqreturn_t diva_os_irq_wrapper(int irq, void *context);
 59extern int create_divas_proc(void);
 60extern void remove_divas_proc(void);
 61extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
 62extern int divasfunc_init(int dbgmask);
 63extern void divasfunc_exit(void);
 64
 65typedef struct _diva_os_thread_dpc {
 66	struct tasklet_struct divas_task;
 67	diva_os_soft_isr_t *psoft_isr;
 68} diva_os_thread_dpc_t;
 69
 70/* --------------------------------------------------------------------------
 71   PCI driver interface section
 72   -------------------------------------------------------------------------- */
 73/*
 74  vendor, device	Vendor and device ID to match (or PCI_ANY_ID)
 75  subvendor,	Subsystem vendor and device ID to match (or PCI_ANY_ID)
 76  subdevice
 77  class,		Device class to match. The class_mask tells which bits
 78  class_mask	of the class are honored during the comparison.
 79  driver_data	Data private to the driver.
 80*/
 81
 82#if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
 83#define PCI_DEVICE_ID_EICON_MAESTRAP_2       0xE015
 84#endif
 85
 86#if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
 87#define PCI_DEVICE_ID_EICON_4BRI_VOIP        0xE016
 88#endif
 89
 90#if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
 91#define PCI_DEVICE_ID_EICON_4BRI_2_VOIP      0xE017
 92#endif
 93
 94#if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
 95#define PCI_DEVICE_ID_EICON_BRI2M_2          0xE018
 96#endif
 97
 98#if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
 99#define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP  0xE019
100#endif
101
102#if !defined(PCI_DEVICE_ID_EICON_2F)
103#define PCI_DEVICE_ID_EICON_2F               0xE01A
104#endif
105
106#if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
107#define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP     0xE01B
108#endif
109
110/*
111  This table should be sorted by PCI device ID
112*/
113static struct pci_device_id divas_pci_tbl[] = {
114	/* Diva Server BRI-2M PCI 0xE010 */
115	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRA),
116	  CARDTYPE_MAESTRA_PCI },
117	/* Diva Server 4BRI-8M PCI 0xE012 */
118	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAQ),
119	  CARDTYPE_DIVASRV_Q_8M_PCI },
120	/* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
121	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U),
122	  CARDTYPE_DIVASRV_Q_8M_V2_PCI },
123	/* Diva Server PRI-30M PCI 0xE014 */
124	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP),
125	  CARDTYPE_DIVASRV_P_30M_PCI },
126	/* Diva Server PRI 2.0 adapter 0xE015 */
127	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2),
128	  CARDTYPE_DIVASRV_P_30M_V2_PCI },
129	/* Diva Server Voice 4BRI-8M PCI 0xE016 */
130	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP),
131	  CARDTYPE_DIVASRV_VOICE_Q_8M_PCI },
132	/* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
133	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP),
134	  CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI },
135	/* Diva Server BRI-2M 2.0 PCI 0xE018 */
136	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_BRI2M_2),
137	  CARDTYPE_DIVASRV_B_2M_V2_PCI },
138	/* Diva Server Voice PRI 2.0 PCI 0xE019 */
139	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP),
140	  CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI },
141	/* Diva Server 2FX 0xE01A */
142	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_2F),
143	  CARDTYPE_DIVASRV_B_2F_PCI },
144	/* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
145	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP),
146	  CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI },
147	{ 0, }			/* 0 terminated list. */
148};
149MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
150
151static int divas_init_one(struct pci_dev *pdev,
152			  const struct pci_device_id *ent);
153static void divas_remove_one(struct pci_dev *pdev);
154
155static struct pci_driver diva_pci_driver = {
156	.name     = "divas",
157	.probe    = divas_init_one,
158	.remove   = divas_remove_one,
159	.id_table = divas_pci_tbl,
160};
161
162/*********************************************************
163 ** little helper functions
164 *********************************************************/
165static char *getrev(const char *revision)
166{
167	char *rev;
168	char *p;
169	if ((p = strchr(revision, ':'))) {
170		rev = p + 2;
171		p = strchr(rev, '$');
172		*--p = 0;
173	} else
174		rev = "1.0";
175	return rev;
176}
177
178void diva_log_info(unsigned char *format, ...)
179{
180	va_list args;
181	unsigned char line[160];
182
183	va_start(args, format);
184	vsnprintf(line, sizeof(line), format, args);
185	va_end(args);
186
187	printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
188}
189
190void divas_get_version(char *p)
191{
192	char tmprev[32];
193
194	strcpy(tmprev, main_revision);
195	sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
196		getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
197}
198
199/* --------------------------------------------------------------------------
200   PCI Bus services
201   -------------------------------------------------------------------------- */
202byte diva_os_get_pci_bus(void *pci_dev_handle)
203{
204	struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
205	return ((byte) pdev->bus->number);
206}
207
208byte diva_os_get_pci_func(void *pci_dev_handle)
209{
210	struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
211	return ((byte) pdev->devfn);
212}
213
214unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
215				 void *pci_dev_handle)
216{
217	unsigned char irq = 0;
218	struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
219
220	irq = dev->irq;
221
222	return ((unsigned long) irq);
223}
224
225unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
226				 int bar, void *pci_dev_handle)
227{
228	unsigned long ret = 0;
229	struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
230
231	if (bar < 6) {
232		ret = dev->resource[bar].start;
233	}
234
235	DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
236
237	{
238		unsigned long type = (ret & 0x00000001);
239		if (type & PCI_BASE_ADDRESS_SPACE_IO) {
240			DBG_TRC(("  I/O"));
241			ret &= PCI_BASE_ADDRESS_IO_MASK;
242		} else {
243			DBG_TRC(("  memory"));
244			ret &= PCI_BASE_ADDRESS_MEM_MASK;
245		}
246		DBG_TRC(("  final=%08x", ret));
247	}
248
249	return (ret);
250}
251
252void PCIwrite(byte bus, byte func, int offset, void *data, int length,
253	      void *pci_dev_handle)
254{
255	struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
256
257	switch (length) {
258	case 1:		/* byte */
259		pci_write_config_byte(dev, offset,
260				      *(unsigned char *) data);
261		break;
262	case 2:		/* word */
263		pci_write_config_word(dev, offset,
264				      *(unsigned short *) data);
265		break;
266	case 4:		/* dword */
267		pci_write_config_dword(dev, offset,
268				       *(unsigned int *) data);
269		break;
270
271	default:		/* buffer */
272		if (!(length % 4) && !(length & 0x03)) {	/* Copy as dword */
273			dword *p = (dword *) data;
274			length /= 4;
275
276			while (length--) {
277				pci_write_config_dword(dev, offset,
278						       *(unsigned int *)
279						       p++);
280			}
281		} else {	/* copy as byte stream */
282			byte *p = (byte *) data;
283
284			while (length--) {
285				pci_write_config_byte(dev, offset,
286						      *(unsigned char *)
287						      p++);
288			}
289		}
290	}
291}
292
293void PCIread(byte bus, byte func, int offset, void *data, int length,
294	     void *pci_dev_handle)
295{
296	struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
297
298	switch (length) {
299	case 1:		/* byte */
300		pci_read_config_byte(dev, offset, (unsigned char *) data);
301		break;
302	case 2:		/* word */
303		pci_read_config_word(dev, offset, (unsigned short *) data);
304		break;
305	case 4:		/* dword */
306		pci_read_config_dword(dev, offset, (unsigned int *) data);
307		break;
308
309	default:		/* buffer */
310		if (!(length % 4) && !(length & 0x03)) {	/* Copy as dword */
311			dword *p = (dword *) data;
312			length /= 4;
313
314			while (length--) {
315				pci_read_config_dword(dev, offset,
316						      (unsigned int *)
317						      p++);
318			}
319		} else {	/* copy as byte stream */
320			byte *p = (byte *) data;
321
322			while (length--) {
323				pci_read_config_byte(dev, offset,
324						     (unsigned char *)
325						     p++);
326			}
327		}
328	}
329}
330
331/*
332  Init map with DMA pages. It is not problem if some allocations fail -
333  the channels that will not get one DMA page will use standard PIO
334  interface
335*/
336static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
337				       size_t size,
338				       dma_addr_t *dma_handle,
339				       void **addr_handle)
340{
341	void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
342
343	*addr_handle = addr;
344
345	return (addr);
346}
347
348void diva_init_dma_map(void *hdev,
349		       struct _diva_dma_map_entry **ppmap, int nentries)
350{
351	struct pci_dev *pdev = (struct pci_dev *) hdev;
352	struct _diva_dma_map_entry *pmap =
353		diva_alloc_dma_map(hdev, nentries);
354
355	if (pmap) {
356		int i;
357		dma_addr_t dma_handle;
358		void *cpu_addr;
359		void *addr_handle;
360
361		for (i = 0; i < nentries; i++) {
362			if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
363								   PAGE_SIZE,
364								   &dma_handle,
365								   &addr_handle)))
366			{
367				break;
368			}
369			diva_init_dma_map_entry(pmap, i, cpu_addr,
370						(dword) dma_handle,
371						addr_handle);
372			DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
373				 i, (unsigned long) cpu_addr,
374				 (dword) dma_handle,
375				 (unsigned long) addr_handle))}
376	}
377
378	*ppmap = pmap;
379}
380
381/*
382  Free all contained in the map entries and memory used by the map
383  Should be always called after adapter removal from DIDD array
384*/
385void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
386{
387	struct pci_dev *pdev = (struct pci_dev *) hdev;
388	int i;
389	dword phys_addr;
390	void *cpu_addr;
391	dma_addr_t dma_handle;
392	void *addr_handle;
393
394	for (i = 0; (pmap != NULL); i++) {
395		diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
396		if (!cpu_addr) {
397			break;
398		}
399		addr_handle = diva_get_entry_handle(pmap, i);
400		dma_handle = (dma_addr_t) phys_addr;
401		pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
402				    dma_handle);
403		DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
404			 (unsigned long) cpu_addr, (dword) dma_handle,
405			 (unsigned long) addr_handle))
406			}
407
408	diva_free_dma_mapping(pmap);
409}
410
411
412/*********************************************************
413 ** I/O port utilities
414 *********************************************************/
415
416int
417diva_os_register_io_port(void *adapter, int on, unsigned long port,
418			 unsigned long length, const char *name, int id)
419{
420	if (on) {
421		if (!request_region(port, length, name)) {
422			DBG_ERR(("A: I/O: can't register port=%08x", port))
423				return (-1);
424		}
425	} else {
426		release_region(port, length);
427	}
428	return (0);
429}
430
431void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
432{
433	void __iomem *ret = ioremap(bar, area_length);
434	DBG_TRC(("remap(%08x)->%p", bar, ret));
435	return (ret);
436}
437
438void divasa_unmap_pci_bar(void __iomem *bar)
439{
440	if (bar) {
441		iounmap(bar);
442	}
443}
444
445/*********************************************************
446 ** I/O port access
447 *********************************************************/
448inline byte inpp(void __iomem *addr)
449{
450	return (inb((unsigned long) addr));
451}
452
453inline word inppw(void __iomem *addr)
454{
455	return (inw((unsigned long) addr));
456}
457
458inline void inppw_buffer(void __iomem *addr, void *P, int length)
459{
460	insw((unsigned long) addr, (word *) P, length >> 1);
461}
462
463inline void outppw_buffer(void __iomem *addr, void *P, int length)
464{
465	outsw((unsigned long) addr, (word *) P, length >> 1);
466}
467
468inline void outppw(void __iomem *addr, word w)
469{
470	outw(w, (unsigned long) addr);
471}
472
473inline void outpp(void __iomem *addr, word p)
474{
475	outb(p, (unsigned long) addr);
476}
477
478/* --------------------------------------------------------------------------
479   IRQ request / remove
480   -------------------------------------------------------------------------- */
481int diva_os_register_irq(void *context, byte irq, const char *name)
482{
483	int result = request_irq(irq, diva_os_irq_wrapper,
484				 IRQF_SHARED, name, context);
485	return (result);
486}
487
488void diva_os_remove_irq(void *context, byte irq)
489{
490	free_irq(irq, context);
491}
492
493/* --------------------------------------------------------------------------
494   DPC framework implementation
495   -------------------------------------------------------------------------- */
496static void diva_os_dpc_proc(unsigned long context)
497{
498	diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
499	diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
500
501	(*(pisr->callback)) (pisr, pisr->callback_context);
502}
503
504int diva_os_initialize_soft_isr(diva_os_soft_isr_t *psoft_isr,
505				diva_os_soft_isr_callback_t callback,
506				void *callback_context)
507{
508	diva_os_thread_dpc_t *pdpc;
509
510	pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
511	if (!(psoft_isr->object = pdpc)) {
512		return (-1);
513	}
514	memset(pdpc, 0x00, sizeof(*pdpc));
515	psoft_isr->callback = callback;
516	psoft_isr->callback_context = callback_context;
517	pdpc->psoft_isr = psoft_isr;
518	tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
519
520	return (0);
521}
522
523int diva_os_schedule_soft_isr(diva_os_soft_isr_t *psoft_isr)
524{
525	if (psoft_isr && psoft_isr->object) {
526		diva_os_thread_dpc_t *pdpc =
527			(diva_os_thread_dpc_t *) psoft_isr->object;
528
529		tasklet_schedule(&pdpc->divas_task);
530	}
531
532	return (1);
533}
534
535int diva_os_cancel_soft_isr(diva_os_soft_isr_t *psoft_isr)
536{
537	return (0);
538}
539
540void diva_os_remove_soft_isr(diva_os_soft_isr_t *psoft_isr)
541{
542	if (psoft_isr && psoft_isr->object) {
543		diva_os_thread_dpc_t *pdpc =
544			(diva_os_thread_dpc_t *) psoft_isr->object;
545		void *mem;
546
547		tasklet_kill(&pdpc->divas_task);
548		mem = psoft_isr->object;
549		psoft_isr->object = NULL;
550		diva_os_free(0, mem);
551	}
552}
553
554/*
555 * kernel/user space copy functions
556 */
557static int
558xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
559{
560	if (copy_to_user(dst, src, length)) {
561		return (-EFAULT);
562	}
563	return (length);
564}
565
566static int
567xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
568{
569	if (copy_from_user(dst, src, length)) {
570		return (-EFAULT);
571	}
572	return (length);
573}
574
575/*
576 * device node operations
577 */
578static int divas_open(struct inode *inode, struct file *file)
579{
580	return (0);
581}
582
583static int divas_release(struct inode *inode, struct file *file)
584{
585	if (file->private_data) {
586		diva_xdi_close_adapter(file->private_data, file);
587	}
588	return (0);
589}
590
591static ssize_t divas_write(struct file *file, const char __user *buf,
592			   size_t count, loff_t *ppos)
593{
594	int ret = -EINVAL;
595
596	if (!file->private_data) {
597		file->private_data = diva_xdi_open_adapter(file, buf,
598							   count,
599							   xdi_copy_from_user);
600	}
601	if (!file->private_data) {
602		return (-ENODEV);
603	}
604
605	ret = diva_xdi_write(file->private_data, file,
606			     buf, count, xdi_copy_from_user);
607	switch (ret) {
608	case -1:		/* Message should be removed from rx mailbox first */
609		ret = -EBUSY;
610		break;
611	case -2:		/* invalid adapter was specified in this call */
612		ret = -ENOMEM;
613		break;
614	case -3:
615		ret = -ENXIO;
616		break;
617	}
618	DBG_TRC(("write: ret %d", ret));
619	return (ret);
620}
621
622static ssize_t divas_read(struct file *file, char __user *buf,
623			  size_t count, loff_t *ppos)
624{
625	int ret = -EINVAL;
626
627	if (!file->private_data) {
628		file->private_data = diva_xdi_open_adapter(file, buf,
629							   count,
630							   xdi_copy_from_user);
631	}
632	if (!file->private_data) {
633		return (-ENODEV);
634	}
635
636	ret = diva_xdi_read(file->private_data, file,
637			    buf, count, xdi_copy_to_user);
638	switch (ret) {
639	case -1:		/* RX mailbox is empty */
640		ret = -EAGAIN;
641		break;
642	case -2:		/* no memory, mailbox was cleared, last command is failed */
643		ret = -ENOMEM;
644		break;
645	case -3:		/* can't copy to user, retry */
646		ret = -EFAULT;
647		break;
648	}
649	DBG_TRC(("read: ret %d", ret));
650	return (ret);
651}
652
653static unsigned int divas_poll(struct file *file, poll_table *wait)
654{
655	if (!file->private_data) {
656		return (POLLERR);
657	}
658	return (POLLIN | POLLRDNORM);
659}
660
661static const struct file_operations divas_fops = {
662	.owner   = THIS_MODULE,
663	.llseek  = no_llseek,
664	.read    = divas_read,
665	.write   = divas_write,
666	.poll    = divas_poll,
667	.open    = divas_open,
668	.release = divas_release
669};
670
671static void divas_unregister_chrdev(void)
672{
673	unregister_chrdev(major, DEVNAME);
674}
675
676static int __init divas_register_chrdev(void)
677{
678	if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0)
679	{
680		printk(KERN_ERR "%s: failed to create /dev entry.\n",
681		       DRIVERLNAME);
682		return (0);
683	}
684
685	return (1);
686}
687
688/* --------------------------------------------------------------------------
689   PCI driver section
690   -------------------------------------------------------------------------- */
691static int divas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
692{
693	void *pdiva = NULL;
694	u8 pci_latency;
695	u8 new_latency = 32;
696
697	DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
698		 CardProperties[ent->driver_data].Name,
699		 pdev->bus->number, pdev->devfn))
700		printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
701		       DRIVERLNAME, CardProperties[ent->driver_data].Name,
702		       pdev->bus->number, pdev->devfn);
703
704	if (pci_enable_device(pdev)) {
705		DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
706			 DRIVERLNAME,
707			 CardProperties[ent->driver_data].Name,
708			 pdev->bus->number,
709			 pdev->devfn))
710			printk(KERN_ERR
711			       "%s: %s bus: %08x fn: %08x device init failed.\n",
712			       DRIVERLNAME,
713			       CardProperties[ent->driver_data].
714			       Name, pdev->bus->number,
715			       pdev->devfn);
716		return (-EIO);
717	}
718
719	pci_set_master(pdev);
720
721	pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
722	if (!pci_latency) {
723		DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
724			 DRIVERLNAME, pdev->bus->number, pdev->devfn))
725			printk(KERN_INFO
726			       "%s: bus: %08x fn: %08x fix latency.\n",
727			       DRIVERLNAME, pdev->bus->number, pdev->devfn);
728		pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
729	}
730
731	if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
732		DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
733			 DRIVERLNAME,
734			 CardProperties[ent->driver_data].Name,
735			 pdev->bus->number,
736			 pdev->devfn))
737			printk(KERN_ERR
738			       "%s: %s bus: %08x fn: %08x card init failed.\n",
739			       DRIVERLNAME,
740			       CardProperties[ent->driver_data].
741			       Name, pdev->bus->number,
742			       pdev->devfn);
743		return (-EIO);
744	}
745
746	pci_set_drvdata(pdev, pdiva);
747
748	return (0);
749}
750
751static void divas_remove_one(struct pci_dev *pdev)
752{
753	void *pdiva = pci_get_drvdata(pdev);
754
755	DBG_TRC(("bus: %08x fn: %08x removal.\n",
756		 pdev->bus->number, pdev->devfn))
757		printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
758		       DRIVERLNAME, pdev->bus->number, pdev->devfn);
759
760	if (pdiva) {
761		diva_driver_remove_card(pdiva);
762	}
763
764}
765
766/* --------------------------------------------------------------------------
767   Driver Load / Startup
768   -------------------------------------------------------------------------- */
769static int __init divas_init(void)
770{
771	char tmprev[50];
772	int ret = 0;
773
774	printk(KERN_INFO "%s\n", DRIVERNAME);
775	printk(KERN_INFO "%s: Rel:%s  Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
776	strcpy(tmprev, main_revision);
777	printk("%s  Build: %s(%s)\n", getrev(tmprev),
778	       diva_xdi_common_code_build, DIVA_BUILD);
779	printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
780#ifdef CONFIG_ISDN_DIVAS_BRIPCI
781	printk("BRI/PCI ");
782#endif
783#ifdef CONFIG_ISDN_DIVAS_PRIPCI
784	printk("PRI/PCI ");
785#endif
786	printk("adapters\n");
787
788	if (!divasfunc_init(dbgmask)) {
789		printk(KERN_ERR "%s: failed to connect to DIDD.\n",
790		       DRIVERLNAME);
791		ret = -EIO;
792		goto out;
793	}
794
795	if (!divas_register_chrdev()) {
796#ifdef MODULE
797		divasfunc_exit();
798#endif
799		ret = -EIO;
800		goto out;
801	}
802
803	if (!create_divas_proc()) {
804#ifdef MODULE
805		divas_unregister_chrdev();
806		divasfunc_exit();
807#endif
808		printk(KERN_ERR "%s: failed to create proc entry.\n",
809		       DRIVERLNAME);
810		ret = -EIO;
811		goto out;
812	}
813
814	if ((ret = pci_register_driver(&diva_pci_driver))) {
815#ifdef MODULE
816		remove_divas_proc();
817		divas_unregister_chrdev();
818		divasfunc_exit();
819#endif
820		printk(KERN_ERR "%s: failed to init pci driver.\n",
821		       DRIVERLNAME);
822		goto out;
823	}
824	printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
825
826out:
827	return (ret);
828}
829
830/* --------------------------------------------------------------------------
831   Driver Unload
832   -------------------------------------------------------------------------- */
833static void __exit divas_exit(void)
834{
835	pci_unregister_driver(&diva_pci_driver);
836	remove_divas_proc();
837	divas_unregister_chrdev();
838	divasfunc_exit();
839
840	printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
841}
842
843module_init(divas_init);
844module_exit(divas_exit);