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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[mirror_ubuntu-artful-kernel.git] / drivers / isdn / hardware / eicon / divasmain.c
CommitLineData
1da177e4
LT		 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
1da177e4
LT		 12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/kernel.h>
7c0f6ba6 15#include <linux/uaccess.h>
1da177e4
LT		 16#include <asm/io.h>
17#include <linux/ioport.h>
1da177e4 18#include <linux/pci.h>
1da177e4
LT		 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 =
475be4d8 53 "Eicon DIVA Server driver (http://www.melware.net)";
1da177e4
LT		 54static char *DRIVERLNAME = "divas";
55static char *DEVNAME = "Divas";
56char *DRIVERRELEASE_DIVAS = "2.0";
57
7d12e780 58extern irqreturn_t diva_os_irq_wrapper(int irq, void *context);
1da177e4
LT		 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/* --------------------------------------------------------------------------
475be4d8 71 PCI driver interface section
1da177e4
LT		 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.
475be4d8 80*/
1da177e4
LT		 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
475be4d8 112*/
cf46d351 113static const struct pci_device_id divas_pci_tbl[] = {
f51307e4
PH		 114 /* Diva Server BRI-2M PCI 0xE010 */
115 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRA),
475be4d8 116 CARDTYPE_MAESTRA_PCI },
f51307e4
PH		 117 /* Diva Server 4BRI-8M PCI 0xE012 */
118 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAQ),
475be4d8 119 CARDTYPE_DIVASRV_Q_8M_PCI },
f51307e4
PH		 120 /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
121 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U),
475be4d8 122 CARDTYPE_DIVASRV_Q_8M_V2_PCI },
f51307e4
PH		 123 /* Diva Server PRI-30M PCI 0xE014 */
124 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP),
475be4d8 125 CARDTYPE_DIVASRV_P_30M_PCI },
f51307e4
PH		 126 /* Diva Server PRI 2.0 adapter 0xE015 */
127 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2),
475be4d8 128 CARDTYPE_DIVASRV_P_30M_V2_PCI },
f51307e4
PH		 129 /* Diva Server Voice 4BRI-8M PCI 0xE016 */
130 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP),
475be4d8 131 CARDTYPE_DIVASRV_VOICE_Q_8M_PCI },
f51307e4
PH		 132 /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
133 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP),
475be4d8 134 CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI },
f51307e4
PH		 135 /* Diva Server BRI-2M 2.0 PCI 0xE018 */
136 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_BRI2M_2),
475be4d8 137 CARDTYPE_DIVASRV_B_2M_V2_PCI },
f51307e4
PH		 138 /* Diva Server Voice PRI 2.0 PCI 0xE019 */
139 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP),
475be4d8 140 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI },
f51307e4
PH		 141 /* Diva Server 2FX 0xE01A */
142 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_2F),
475be4d8 143 CARDTYPE_DIVASRV_B_2F_PCI },
f51307e4
PH		 144 /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
145 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP),
475be4d8 146 CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI },
f51307e4 147 { 0, } /* 0 terminated list. */
1da177e4
LT		 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);
ed5a84cd 153static void divas_remove_one(struct pci_dev *pdev);
1da177e4
LT		 154
155static struct pci_driver diva_pci_driver = {
156 .name = "divas",
157 .probe = divas_init_one,
ed5a84cd 158 .remove = divas_remove_one,
1da177e4
LT		 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);
0b2dd130 184 vsnprintf(line, sizeof(line), format, args);
1da177e4
LT		 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/* --------------------------------------------------------------------------
475be4d8 200 PCI Bus services
1da177e4
LT		 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
475be4d8 335*/
1da177e4
LT		 336static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
337 size_t size,
475be4d8 338 dma_addr_t *dma_handle,
1da177e4
LT		 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 =
475be4d8 353 diva_alloc_dma_map(hdev, nentries);
1da177e4
LT		 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
475be4d8 384*/
1da177e4
LT		 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
dd58c0dd 394 for (i = 0; (pmap != NULL); i++) {
1da177e4
LT		 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))
475be4d8 406 }
1da177e4
LT		 407
408 diva_free_dma_mapping(pmap);
409}
410
411
412/*********************************************************
475be4d8 413 ** I/O port utilities
1da177e4
LT		 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))
475be4d8 423 return (-1);
1da177e4
LT		 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/*********************************************************
475be4d8 446 ** I/O port access
1da177e4 447 *********************************************************/
ac565065 448inline byte inpp(void __iomem *addr)
1da177e4
LT		 449{
450 return (inb((unsigned long) addr));
451}
452
ac565065 453inline word inppw(void __iomem *addr)
1da177e4
LT		 454{
455 return (inw((unsigned long) addr));
456}
457
ac565065 458inline void inppw_buffer(void __iomem *addr, void *P, int length)
1da177e4
LT		 459{
460 insw((unsigned long) addr, (word *) P, length >> 1);
461}
462
ac565065 463inline void outppw_buffer(void __iomem *addr, void *P, int length)
1da177e4
LT		 464{
465 outsw((unsigned long) addr, (word *) P, length >> 1);
466}
467
ac565065 468inline void outppw(void __iomem *addr, word w)
1da177e4
LT		 469{
470 outw(w, (unsigned long) addr);
471}
472
ac565065 473inline void outpp(void __iomem *addr, word p)
1da177e4
LT		 474{
475 outb(p, (unsigned long) addr);
476}
477
478/* --------------------------------------------------------------------------
475be4d8 479 IRQ request / remove
1da177e4
LT		 480 -------------------------------------------------------------------------- */
481int diva_os_register_irq(void *context, byte irq, const char *name)
482{
483 int result = request_irq(irq, diva_os_irq_wrapper,
33235ca4 484 IRQF_SHARED, name, context);
1da177e4
LT		 485 return (result);
486}
487
488void diva_os_remove_irq(void *context, byte irq)
489{
490 free_irq(irq, context);
491}
492
493/* --------------------------------------------------------------------------
475be4d8 494 DPC framework implementation
1da177e4
LT		 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
475be4d8 504int diva_os_initialize_soft_isr(diva_os_soft_isr_t *psoft_isr,
1da177e4
LT		 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
475be4d8 523int diva_os_schedule_soft_isr(diva_os_soft_isr_t *psoft_isr)
1da177e4
LT		 524{
525 if (psoft_isr && psoft_isr->object) {
526 diva_os_thread_dpc_t *pdpc =
475be4d8 527 (diva_os_thread_dpc_t *) psoft_isr->object;
1da177e4
LT		 528
529 tasklet_schedule(&pdpc->divas_task);
530 }
531
532 return (1);
533}
534
475be4d8 535int diva_os_cancel_soft_isr(diva_os_soft_isr_t *psoft_isr)
1da177e4
LT		 536{
537 return (0);
538}
539
475be4d8 540void diva_os_remove_soft_isr(diva_os_soft_isr_t *psoft_isr)
1da177e4
LT		 541{
542 if (psoft_isr && psoft_isr->object) {
543 diva_os_thread_dpc_t *pdpc =
475be4d8 544 (diva_os_thread_dpc_t *) psoft_isr->object;
1da177e4
LT		 545 void *mem;
546
547 tasklet_kill(&pdpc->divas_task);
1da177e4
LT		 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,
475be4d8 592 size_t count, loff_t *ppos)
1da177e4
LT		 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,
475be4d8 623 size_t count, loff_t *ppos)
1da177e4
LT		 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
475be4d8 653static unsigned int divas_poll(struct file *file, poll_table *wait)
1da177e4
LT		 654{
655 if (!file->private_data) {
656 return (POLLERR);
657 }
658 return (POLLIN | POLLRDNORM);
659}
660
2b8693c0 661static const struct file_operations divas_fops = {
1da177e4
LT		 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{
1da177e4
LT		 673 unregister_chrdev(major, DEVNAME);
674}
675
d7398892 676static int __init divas_register_chrdev(void)
1da177e4
LT		 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 }
1da177e4
LT		 684
685 return (1);
686}
687
688/* --------------------------------------------------------------------------
475be4d8 689 PCI driver section
1da177e4 690 -------------------------------------------------------------------------- */
ed5a84cd 691static int divas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1da177e4
LT		 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))
475be4d8
JP		 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);
1da177e4
LT		 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))
475be4d8
JP		 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);
1da177e4
LT		 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))
475be4d8
JP		 725 printk(KERN_INFO
726 "%s: bus: %08x fn: %08x fix latency.\n",
727 DRIVERLNAME, pdev->bus->number, pdev->devfn);
1da177e4
LT		 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))
475be4d8
JP		 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);
1da177e4
LT		 743 return (-EIO);
744 }
745
746 pci_set_drvdata(pdev, pdiva);
747
748 return (0);
749}
750
ed5a84cd 751static void divas_remove_one(struct pci_dev *pdev)
1da177e4
LT		 752{
753 void *pdiva = pci_get_drvdata(pdev);
754
755 DBG_TRC(("bus: %08x fn: %08x removal.\n",
756 pdev->bus->number, pdev->devfn))
475be4d8
JP		 757 printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
758 DRIVERLNAME, pdev->bus->number, pdev->devfn);
1da177e4
LT		 759
760 if (pdiva) {
761 diva_driver_remove_card(pdiva);
762 }
763
764}
765
766/* --------------------------------------------------------------------------
475be4d8 767 Driver Load / Startup
1da177e4 768 -------------------------------------------------------------------------- */
d7398892 769static int __init divas_init(void)
1da177e4
LT		 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
1da177e4
LT		 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
475be4d8 826out:
1da177e4
LT		 827 return (ret);
828}
829
830/* --------------------------------------------------------------------------
475be4d8 831 Driver Unload
1da177e4 832 -------------------------------------------------------------------------- */
d7398892 833static void __exit divas_exit(void)
1da177e4
LT		 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);
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