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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/isdn/hardware/eicon/divasmain.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/isdn/hardware/eicon/divasmain.c')
-rw-r--r--drivers/isdn/hardware/eicon/divasmain.c856
1 files changed, 856 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c
new file mode 100644
index 000000000000..c9b26e86d183
--- /dev/null
+++ b/drivers/isdn/hardware/eicon/divasmain.c
@@ -0,0 +1,856 @@
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/config.h>
13#include <linux/module.h>
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/sched.h>
17#include <linux/devfs_fs_kernel.h>
18#include <asm/uaccess.h>
19#include <asm/io.h>
20#include <linux/ioport.h>
21#include <linux/workqueue.h>
22#include <linux/pci.h>
23#include <linux/smp_lock.h>
24#include <linux/interrupt.h>
25#include <linux/list.h>
26#include <linux/poll.h>
27#include <linux/kmod.h>
28
29#include "platform.h"
30#undef ID_MASK
31#undef N_DATA
32#include "pc.h"
33#include "di_defs.h"
34#include "divasync.h"
35#include "diva.h"
36#include "di.h"
37#include "io.h"
38#include "xdi_msg.h"
39#include "xdi_adapter.h"
40#include "xdi_vers.h"
41#include "diva_dma.h"
42#include "diva_pci.h"
43
44static char *main_revision = "$Revision: 1.55.4.6 $";
45
46static int major;
47
48static int dbgmask;
49
50MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
51MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
52MODULE_LICENSE("GPL");
53
54module_param(dbgmask, int, 0);
55MODULE_PARM_DESC(dbgmask, "initial debug mask");
56
57static char *DRIVERNAME =
58 "Eicon DIVA Server driver (http://www.melware.net)";
59static char *DRIVERLNAME = "divas";
60static char *DEVNAME = "Divas";
61char *DRIVERRELEASE_DIVAS = "2.0";
62
63extern irqreturn_t diva_os_irq_wrapper(int irq, void *context,
64 struct pt_regs *regs);
65extern int create_divas_proc(void);
66extern void remove_divas_proc(void);
67extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
68extern int divasfunc_init(int dbgmask);
69extern void divasfunc_exit(void);
70
71typedef struct _diva_os_thread_dpc {
72 struct tasklet_struct divas_task;
73 diva_os_soft_isr_t *psoft_isr;
74} diva_os_thread_dpc_t;
75
76/* --------------------------------------------------------------------------
77 PCI driver interface section
78 -------------------------------------------------------------------------- */
79/*
80 vendor, device Vendor and device ID to match (or PCI_ANY_ID)
81 subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
82 subdevice
83 class, Device class to match. The class_mask tells which bits
84 class_mask of the class are honored during the comparison.
85 driver_data Data private to the driver.
86 */
87
88#if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
89#define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
90#endif
91
92#if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
93#define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
94#endif
95
96#if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
97#define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
98#endif
99
100#if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
101#define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
102#endif
103
104#if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
105#define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
106#endif
107
108#if !defined(PCI_DEVICE_ID_EICON_2F)
109#define PCI_DEVICE_ID_EICON_2F 0xE01A
110#endif
111
112#if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
113#define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
114#endif
115
116/*
117 This table should be sorted by PCI device ID
118 */
119static struct pci_device_id divas_pci_tbl[] = {
120/* Diva Server BRI-2M PCI 0xE010 */
121 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA,
122 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI},
123/* Diva Server 4BRI-8M PCI 0xE012 */
124 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI},
126/* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
127 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U,
128 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI},
129/* Diva Server PRI-30M PCI 0xE014 */
130 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI},
132/* Diva Server PRI 2.0 adapter 0xE015 */
133 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2,
134 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI},
135/* Diva Server Voice 4BRI-8M PCI 0xE016 */
136 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI},
138/* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
139 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP,
140 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI},
141/* Diva Server BRI-2M 2.0 PCI 0xE018 */
142 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI},
144/* Diva Server Voice PRI 2.0 PCI 0xE019 */
145 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP,
146 PCI_ANY_ID, PCI_ANY_ID, 0, 0,
147 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI},
148/* Diva Server 2FX 0xE01A */
149 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F,
150 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI},
151/* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
152 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP,
153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI},
154 {0,} /* 0 terminated list. */
155};
156MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
157
158static int divas_init_one(struct pci_dev *pdev,
159 const struct pci_device_id *ent);
160static void __devexit divas_remove_one(struct pci_dev *pdev);
161
162static struct pci_driver diva_pci_driver = {
163 .name = "divas",
164 .probe = divas_init_one,
165 .remove = __devexit_p(divas_remove_one),
166 .id_table = divas_pci_tbl,
167};
168
169/*********************************************************
170 ** little helper functions
171 *********************************************************/
172static char *getrev(const char *revision)
173{
174 char *rev;
175 char *p;
176 if ((p = strchr(revision, ':'))) {
177 rev = p + 2;
178 p = strchr(rev, '$');
179 *--p = 0;
180 } else
181 rev = "1.0";
182 return rev;
183}
184
185void diva_log_info(unsigned char *format, ...)
186{
187 va_list args;
188 unsigned char line[160];
189
190 va_start(args, format);
191 vsprintf(line, format, args);
192 va_end(args);
193
194 printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
195}
196
197void divas_get_version(char *p)
198{
199 char tmprev[32];
200
201 strcpy(tmprev, main_revision);
202 sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
203 getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
204}
205
206/* --------------------------------------------------------------------------
207 PCI Bus services
208 -------------------------------------------------------------------------- */
209byte diva_os_get_pci_bus(void *pci_dev_handle)
210{
211 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
212 return ((byte) pdev->bus->number);
213}
214
215byte diva_os_get_pci_func(void *pci_dev_handle)
216{
217 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
218 return ((byte) pdev->devfn);
219}
220
221unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
222 void *pci_dev_handle)
223{
224 unsigned char irq = 0;
225 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
226
227 irq = dev->irq;
228
229 return ((unsigned long) irq);
230}
231
232unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
233 int bar, void *pci_dev_handle)
234{
235 unsigned long ret = 0;
236 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
237
238 if (bar < 6) {
239 ret = dev->resource[bar].start;
240 }
241
242 DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
243
244 {
245 unsigned long type = (ret & 0x00000001);
246 if (type & PCI_BASE_ADDRESS_SPACE_IO) {
247 DBG_TRC((" I/O"));
248 ret &= PCI_BASE_ADDRESS_IO_MASK;
249 } else {
250 DBG_TRC((" memory"));
251 ret &= PCI_BASE_ADDRESS_MEM_MASK;
252 }
253 DBG_TRC((" final=%08x", ret));
254 }
255
256 return (ret);
257}
258
259void PCIwrite(byte bus, byte func, int offset, void *data, int length,
260 void *pci_dev_handle)
261{
262 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
263
264 switch (length) {
265 case 1: /* byte */
266 pci_write_config_byte(dev, offset,
267 *(unsigned char *) data);
268 break;
269 case 2: /* word */
270 pci_write_config_word(dev, offset,
271 *(unsigned short *) data);
272 break;
273 case 4: /* dword */
274 pci_write_config_dword(dev, offset,
275 *(unsigned int *) data);
276 break;
277
278 default: /* buffer */
279 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
280 dword *p = (dword *) data;
281 length /= 4;
282
283 while (length--) {
284 pci_write_config_dword(dev, offset,
285 *(unsigned int *)
286 p++);
287 }
288 } else { /* copy as byte stream */
289 byte *p = (byte *) data;
290
291 while (length--) {
292 pci_write_config_byte(dev, offset,
293 *(unsigned char *)
294 p++);
295 }
296 }
297 }
298}
299
300void PCIread(byte bus, byte func, int offset, void *data, int length,
301 void *pci_dev_handle)
302{
303 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
304
305 switch (length) {
306 case 1: /* byte */
307 pci_read_config_byte(dev, offset, (unsigned char *) data);
308 break;
309 case 2: /* word */
310 pci_read_config_word(dev, offset, (unsigned short *) data);
311 break;
312 case 4: /* dword */
313 pci_read_config_dword(dev, offset, (unsigned int *) data);
314 break;
315
316 default: /* buffer */
317 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
318 dword *p = (dword *) data;
319 length /= 4;
320
321 while (length--) {
322 pci_read_config_dword(dev, offset,
323 (unsigned int *)
324 p++);
325 }
326 } else { /* copy as byte stream */
327 byte *p = (byte *) data;
328
329 while (length--) {
330 pci_read_config_byte(dev, offset,
331 (unsigned char *)
332 p++);
333 }
334 }
335 }
336}
337
338/*
339 Init map with DMA pages. It is not problem if some allocations fail -
340 the channels that will not get one DMA page will use standard PIO
341 interface
342 */
343static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
344 size_t size,
345 dma_addr_t * dma_handle,
346 void **addr_handle)
347{
348 void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
349
350 *addr_handle = addr;
351
352 return (addr);
353}
354
355void diva_init_dma_map(void *hdev,
356 struct _diva_dma_map_entry **ppmap, int nentries)
357{
358 struct pci_dev *pdev = (struct pci_dev *) hdev;
359 struct _diva_dma_map_entry *pmap =
360 diva_alloc_dma_map(hdev, nentries);
361
362 if (pmap) {
363 int i;
364 dma_addr_t dma_handle;
365 void *cpu_addr;
366 void *addr_handle;
367
368 for (i = 0; i < nentries; i++) {
369 if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
370 PAGE_SIZE,
371 &dma_handle,
372 &addr_handle)))
373 {
374 break;
375 }
376 diva_init_dma_map_entry(pmap, i, cpu_addr,
377 (dword) dma_handle,
378 addr_handle);
379 DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
380 i, (unsigned long) cpu_addr,
381 (dword) dma_handle,
382 (unsigned long) addr_handle))}
383 }
384
385 *ppmap = pmap;
386}
387
388/*
389 Free all contained in the map entries and memory used by the map
390 Should be always called after adapter removal from DIDD array
391 */
392void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
393{
394 struct pci_dev *pdev = (struct pci_dev *) hdev;
395 int i;
396 dword phys_addr;
397 void *cpu_addr;
398 dma_addr_t dma_handle;
399 void *addr_handle;
400
401 for (i = 0; (pmap != 0); i++) {
402 diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
403 if (!cpu_addr) {
404 break;
405 }
406 addr_handle = diva_get_entry_handle(pmap, i);
407 dma_handle = (dma_addr_t) phys_addr;
408 pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
409 dma_handle);
410 DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
411 (unsigned long) cpu_addr, (dword) dma_handle,
412 (unsigned long) addr_handle))
413 }
414
415 diva_free_dma_mapping(pmap);
416}
417
418
419/*********************************************************
420 ** I/O port utilities
421 *********************************************************/
422
423int
424diva_os_register_io_port(void *adapter, int on, unsigned long port,
425 unsigned long length, const char *name, int id)
426{
427 if (on) {
428 if (!request_region(port, length, name)) {
429 DBG_ERR(("A: I/O: can't register port=%08x", port))
430 return (-1);
431 }
432 } else {
433 release_region(port, length);
434 }
435 return (0);
436}
437
438void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
439{
440 void __iomem *ret = ioremap(bar, area_length);
441 DBG_TRC(("remap(%08x)->%p", bar, ret));
442 return (ret);
443}
444
445void divasa_unmap_pci_bar(void __iomem *bar)
446{
447 if (bar) {
448 iounmap(bar);
449 }
450}
451
452/*********************************************************
453 ** I/O port access
454 *********************************************************/
455byte __inline__ inpp(void __iomem *addr)
456{
457 return (inb((unsigned long) addr));
458}
459
460word __inline__ inppw(void __iomem *addr)
461{
462 return (inw((unsigned long) addr));
463}
464
465void __inline__ inppw_buffer(void __iomem *addr, void *P, int length)
466{
467 insw((unsigned long) addr, (word *) P, length >> 1);
468}
469
470void __inline__ outppw_buffer(void __iomem *addr, void *P, int length)
471{
472 outsw((unsigned long) addr, (word *) P, length >> 1);
473}
474
475void __inline__ outppw(void __iomem *addr, word w)
476{
477 outw(w, (unsigned long) addr);
478}
479
480void __inline__ outpp(void __iomem *addr, word p)
481{
482 outb(p, (unsigned long) addr);
483}
484
485/* --------------------------------------------------------------------------
486 IRQ request / remove
487 -------------------------------------------------------------------------- */
488int diva_os_register_irq(void *context, byte irq, const char *name)
489{
490 int result = request_irq(irq, diva_os_irq_wrapper,
491 SA_INTERRUPT | SA_SHIRQ, name, context);
492 return (result);
493}
494
495void diva_os_remove_irq(void *context, byte irq)
496{
497 free_irq(irq, context);
498}
499
500/* --------------------------------------------------------------------------
501 DPC framework implementation
502 -------------------------------------------------------------------------- */
503static void diva_os_dpc_proc(unsigned long context)
504{
505 diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
506 diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
507
508 (*(pisr->callback)) (pisr, pisr->callback_context);
509}
510
511int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr,
512 diva_os_soft_isr_callback_t callback,
513 void *callback_context)
514{
515 diva_os_thread_dpc_t *pdpc;
516
517 pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
518 if (!(psoft_isr->object = pdpc)) {
519 return (-1);
520 }
521 memset(pdpc, 0x00, sizeof(*pdpc));
522 psoft_isr->callback = callback;
523 psoft_isr->callback_context = callback_context;
524 pdpc->psoft_isr = psoft_isr;
525 tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
526
527 return (0);
528}
529
530int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr)
531{
532 if (psoft_isr && psoft_isr->object) {
533 diva_os_thread_dpc_t *pdpc =
534 (diva_os_thread_dpc_t *) psoft_isr->object;
535
536 tasklet_schedule(&pdpc->divas_task);
537 }
538
539 return (1);
540}
541
542int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr)
543{
544 return (0);
545}
546
547void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr)
548{
549 if (psoft_isr && psoft_isr->object) {
550 diva_os_thread_dpc_t *pdpc =
551 (diva_os_thread_dpc_t *) psoft_isr->object;
552 void *mem;
553
554 tasklet_kill(&pdpc->divas_task);
555 flush_scheduled_work();
556 mem = psoft_isr->object;
557 psoft_isr->object = NULL;
558 diva_os_free(0, mem);
559 }
560}
561
562/*
563 * kernel/user space copy functions
564 */
565static int
566xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
567{
568 if (copy_to_user(dst, src, length)) {
569 return (-EFAULT);
570 }
571 return (length);
572}
573
574static int
575xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
576{
577 if (copy_from_user(dst, src, length)) {
578 return (-EFAULT);
579 }
580 return (length);
581}
582
583/*
584 * device node operations
585 */
586static int divas_open(struct inode *inode, struct file *file)
587{
588 return (0);
589}
590
591static int divas_release(struct inode *inode, struct file *file)
592{
593 if (file->private_data) {
594 diva_xdi_close_adapter(file->private_data, file);
595 }
596 return (0);
597}
598
599static ssize_t divas_write(struct file *file, const char __user *buf,
600 size_t count, loff_t * ppos)
601{
602 int ret = -EINVAL;
603
604 if (!file->private_data) {
605 file->private_data = diva_xdi_open_adapter(file, buf,
606 count,
607 xdi_copy_from_user);
608 }
609 if (!file->private_data) {
610 return (-ENODEV);
611 }
612
613 ret = diva_xdi_write(file->private_data, file,
614 buf, count, xdi_copy_from_user);
615 switch (ret) {
616 case -1: /* Message should be removed from rx mailbox first */
617 ret = -EBUSY;
618 break;
619 case -2: /* invalid adapter was specified in this call */
620 ret = -ENOMEM;
621 break;
622 case -3:
623 ret = -ENXIO;
624 break;
625 }
626 DBG_TRC(("write: ret %d", ret));
627 return (ret);
628}
629
630static ssize_t divas_read(struct file *file, char __user *buf,
631 size_t count, loff_t * ppos)
632{
633 int ret = -EINVAL;
634
635 if (!file->private_data) {
636 file->private_data = diva_xdi_open_adapter(file, buf,
637 count,
638 xdi_copy_from_user);
639 }
640 if (!file->private_data) {
641 return (-ENODEV);
642 }
643
644 ret = diva_xdi_read(file->private_data, file,
645 buf, count, xdi_copy_to_user);
646 switch (ret) {
647 case -1: /* RX mailbox is empty */
648 ret = -EAGAIN;
649 break;
650 case -2: /* no memory, mailbox was cleared, last command is failed */
651 ret = -ENOMEM;
652 break;
653 case -3: /* can't copy to user, retry */
654 ret = -EFAULT;
655 break;
656 }
657 DBG_TRC(("read: ret %d", ret));
658 return (ret);
659}
660
661static unsigned int divas_poll(struct file *file, poll_table * wait)
662{
663 if (!file->private_data) {
664 return (POLLERR);
665 }
666 return (POLLIN | POLLRDNORM);
667}
668
669static struct file_operations divas_fops = {
670 .owner = THIS_MODULE,
671 .llseek = no_llseek,
672 .read = divas_read,
673 .write = divas_write,
674 .poll = divas_poll,
675 .open = divas_open,
676 .release = divas_release
677};
678
679static void divas_unregister_chrdev(void)
680{
681 devfs_remove(DEVNAME);
682 unregister_chrdev(major, DEVNAME);
683}
684
685static int DIVA_INIT_FUNCTION divas_register_chrdev(void)
686{
687 if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0)
688 {
689 printk(KERN_ERR "%s: failed to create /dev entry.\n",
690 DRIVERLNAME);
691 return (0);
692 }
693 devfs_mk_cdev(MKDEV(major, 0), S_IFCHR|S_IRUSR|S_IWUSR, DEVNAME);
694
695 return (1);
696}
697
698/* --------------------------------------------------------------------------
699 PCI driver section
700 -------------------------------------------------------------------------- */
701static int __devinit divas_init_one(struct pci_dev *pdev,
702 const struct pci_device_id *ent)
703{
704 void *pdiva = NULL;
705 u8 pci_latency;
706 u8 new_latency = 32;
707
708 DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
709 CardProperties[ent->driver_data].Name,
710 pdev->bus->number, pdev->devfn))
711 printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
712 DRIVERLNAME, CardProperties[ent->driver_data].Name,
713 pdev->bus->number, pdev->devfn);
714
715 if (pci_enable_device(pdev)) {
716 DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
717 DRIVERLNAME,
718 CardProperties[ent->driver_data].Name,
719 pdev->bus->number,
720 pdev->devfn))
721 printk(KERN_ERR
722 "%s: %s bus: %08x fn: %08x device init failed.\n",
723 DRIVERLNAME,
724 CardProperties[ent->driver_data].
725 Name, pdev->bus->number,
726 pdev->devfn);
727 return (-EIO);
728 }
729
730 pci_set_master(pdev);
731
732 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
733 if (!pci_latency) {
734 DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
735 DRIVERLNAME, pdev->bus->number, pdev->devfn))
736 printk(KERN_INFO
737 "%s: bus: %08x fn: %08x fix latency.\n",
738 DRIVERLNAME, pdev->bus->number, pdev->devfn);
739 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
740 }
741
742 if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
743 DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
744 DRIVERLNAME,
745 CardProperties[ent->driver_data].Name,
746 pdev->bus->number,
747 pdev->devfn))
748 printk(KERN_ERR
749 "%s: %s bus: %08x fn: %08x card init failed.\n",
750 DRIVERLNAME,
751 CardProperties[ent->driver_data].
752 Name, pdev->bus->number,
753 pdev->devfn);
754 return (-EIO);
755 }
756
757 pci_set_drvdata(pdev, pdiva);
758
759 return (0);
760}
761
762static void __devexit divas_remove_one(struct pci_dev *pdev)
763{
764 void *pdiva = pci_get_drvdata(pdev);
765
766 DBG_TRC(("bus: %08x fn: %08x removal.\n",
767 pdev->bus->number, pdev->devfn))
768 printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
769 DRIVERLNAME, pdev->bus->number, pdev->devfn);
770
771 if (pdiva) {
772 diva_driver_remove_card(pdiva);
773 }
774
775}
776
777/* --------------------------------------------------------------------------
778 Driver Load / Startup
779 -------------------------------------------------------------------------- */
780static int DIVA_INIT_FUNCTION divas_init(void)
781{
782 char tmprev[50];
783 int ret = 0;
784
785 printk(KERN_INFO "%s\n", DRIVERNAME);
786 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
787 strcpy(tmprev, main_revision);
788 printk("%s Build: %s(%s)\n", getrev(tmprev),
789 diva_xdi_common_code_build, DIVA_BUILD);
790 printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
791#ifdef CONFIG_ISDN_DIVAS_BRIPCI
792 printk("BRI/PCI ");
793#endif
794#ifdef CONFIG_ISDN_DIVAS_PRIPCI
795 printk("PRI/PCI ");
796#endif
797 printk("adapters\n");
798
799 if (!divasfunc_init(dbgmask)) {
800 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
801 DRIVERLNAME);
802 ret = -EIO;
803 goto out;
804 }
805
806 if (!divas_register_chrdev()) {
807#ifdef MODULE
808 divasfunc_exit();
809#endif
810 ret = -EIO;
811 goto out;
812 }
813
814 if (!create_divas_proc()) {
815#ifdef MODULE
816 remove_divas_proc();
817 divas_unregister_chrdev();
818 divasfunc_exit();
819#endif
820 printk(KERN_ERR "%s: failed to create proc entry.\n",
821 DRIVERLNAME);
822 ret = -EIO;
823 goto out;
824 }
825
826 if ((ret = pci_register_driver(&diva_pci_driver))) {
827#ifdef MODULE
828 remove_divas_proc();
829 divas_unregister_chrdev();
830 divasfunc_exit();
831#endif
832 printk(KERN_ERR "%s: failed to init pci driver.\n",
833 DRIVERLNAME);
834 goto out;
835 }
836 printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
837
838 out:
839 return (ret);
840}
841
842/* --------------------------------------------------------------------------
843 Driver Unload
844 -------------------------------------------------------------------------- */
845static void DIVA_EXIT_FUNCTION divas_exit(void)
846{
847 pci_unregister_driver(&diva_pci_driver);
848 remove_divas_proc();
849 divas_unregister_chrdev();
850 divasfunc_exit();
851
852 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
853}
854
855module_init(divas_init);
856module_exit(divas_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 08:35:59 -0500