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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> | |
1da177e4 LT |
15 | #include <asm/uaccess.h> |
16 | #include <asm/io.h> | |
17 | #include <linux/ioport.h> | |
18 | #include <linux/workqueue.h> | |
19 | #include <linux/pci.h> | |
1da177e4 LT |
20 | #include <linux/interrupt.h> |
21 | #include <linux/list.h> | |
22 | #include <linux/poll.h> | |
23 | #include <linux/kmod.h> | |
f2b9857e | 24 | #include <linux/smp_lock.h> |
1da177e4 LT |
25 | |
26 | #include "platform.h" | |
27 | #undef ID_MASK | |
28 | #undef N_DATA | |
29 | #include "pc.h" | |
30 | #include "di_defs.h" | |
31 | #include "divasync.h" | |
32 | #include "diva.h" | |
33 | #include "di.h" | |
34 | #include "io.h" | |
35 | #include "xdi_msg.h" | |
36 | #include "xdi_adapter.h" | |
37 | #include "xdi_vers.h" | |
38 | #include "diva_dma.h" | |
39 | #include "diva_pci.h" | |
40 | ||
41 | static char *main_revision = "$Revision: 1.55.4.6 $"; | |
42 | ||
43 | static int major; | |
44 | ||
45 | static int dbgmask; | |
46 | ||
47 | MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards"); | |
48 | MODULE_AUTHOR("Cytronics & Melware, Eicon Networks"); | |
49 | MODULE_LICENSE("GPL"); | |
50 | ||
51 | module_param(dbgmask, int, 0); | |
52 | MODULE_PARM_DESC(dbgmask, "initial debug mask"); | |
53 | ||
54 | static char *DRIVERNAME = | |
55 | "Eicon DIVA Server driver (http://www.melware.net)"; | |
56 | static char *DRIVERLNAME = "divas"; | |
57 | static char *DEVNAME = "Divas"; | |
58 | char *DRIVERRELEASE_DIVAS = "2.0"; | |
59 | ||
7d12e780 | 60 | extern irqreturn_t diva_os_irq_wrapper(int irq, void *context); |
1da177e4 LT |
61 | extern int create_divas_proc(void); |
62 | extern void remove_divas_proc(void); | |
63 | extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf); | |
64 | extern int divasfunc_init(int dbgmask); | |
65 | extern void divasfunc_exit(void); | |
66 | ||
67 | typedef struct _diva_os_thread_dpc { | |
68 | struct tasklet_struct divas_task; | |
69 | diva_os_soft_isr_t *psoft_isr; | |
70 | } diva_os_thread_dpc_t; | |
71 | ||
72 | /* -------------------------------------------------------------------------- | |
73 | PCI driver interface section | |
74 | -------------------------------------------------------------------------- */ | |
75 | /* | |
76 | vendor, device Vendor and device ID to match (or PCI_ANY_ID) | |
77 | subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID) | |
78 | subdevice | |
79 | class, Device class to match. The class_mask tells which bits | |
80 | class_mask of the class are honored during the comparison. | |
81 | driver_data Data private to the driver. | |
82 | */ | |
83 | ||
84 | #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2) | |
85 | #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015 | |
86 | #endif | |
87 | ||
88 | #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP) | |
89 | #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016 | |
90 | #endif | |
91 | ||
92 | #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP) | |
93 | #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017 | |
94 | #endif | |
95 | ||
96 | #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2) | |
97 | #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018 | |
98 | #endif | |
99 | ||
100 | #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP) | |
101 | #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019 | |
102 | #endif | |
103 | ||
104 | #if !defined(PCI_DEVICE_ID_EICON_2F) | |
105 | #define PCI_DEVICE_ID_EICON_2F 0xE01A | |
106 | #endif | |
107 | ||
108 | #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP) | |
109 | #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B | |
110 | #endif | |
111 | ||
112 | /* | |
113 | This table should be sorted by PCI device ID | |
114 | */ | |
115 | static struct pci_device_id divas_pci_tbl[] = { | |
116 | /* Diva Server BRI-2M PCI 0xE010 */ | |
117 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA, | |
118 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI}, | |
119 | /* Diva Server 4BRI-8M PCI 0xE012 */ | |
120 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ, | |
121 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI}, | |
122 | /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */ | |
123 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U, | |
124 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI}, | |
125 | /* Diva Server PRI-30M PCI 0xE014 */ | |
126 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP, | |
127 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI}, | |
128 | /* Diva Server PRI 2.0 adapter 0xE015 */ | |
129 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2, | |
130 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI}, | |
131 | /* Diva Server Voice 4BRI-8M PCI 0xE016 */ | |
132 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP, | |
133 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI}, | |
134 | /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */ | |
135 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP, | |
136 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI}, | |
137 | /* Diva Server BRI-2M 2.0 PCI 0xE018 */ | |
138 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2, | |
139 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI}, | |
140 | /* Diva Server Voice PRI 2.0 PCI 0xE019 */ | |
141 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP, | |
142 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, | |
143 | CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI}, | |
144 | /* Diva Server 2FX 0xE01A */ | |
145 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F, | |
146 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI}, | |
147 | /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */ | |
148 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP, | |
149 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI}, | |
150 | {0,} /* 0 terminated list. */ | |
151 | }; | |
152 | MODULE_DEVICE_TABLE(pci, divas_pci_tbl); | |
153 | ||
154 | static int divas_init_one(struct pci_dev *pdev, | |
155 | const struct pci_device_id *ent); | |
156 | static void __devexit divas_remove_one(struct pci_dev *pdev); | |
157 | ||
158 | static struct pci_driver diva_pci_driver = { | |
159 | .name = "divas", | |
160 | .probe = divas_init_one, | |
161 | .remove = __devexit_p(divas_remove_one), | |
162 | .id_table = divas_pci_tbl, | |
163 | }; | |
164 | ||
165 | /********************************************************* | |
166 | ** little helper functions | |
167 | *********************************************************/ | |
168 | static char *getrev(const char *revision) | |
169 | { | |
170 | char *rev; | |
171 | char *p; | |
172 | if ((p = strchr(revision, ':'))) { | |
173 | rev = p + 2; | |
174 | p = strchr(rev, '$'); | |
175 | *--p = 0; | |
176 | } else | |
177 | rev = "1.0"; | |
178 | return rev; | |
179 | } | |
180 | ||
181 | void diva_log_info(unsigned char *format, ...) | |
182 | { | |
183 | va_list args; | |
184 | unsigned char line[160]; | |
185 | ||
186 | va_start(args, format); | |
0b2dd130 | 187 | vsnprintf(line, sizeof(line), format, args); |
1da177e4 LT |
188 | va_end(args); |
189 | ||
190 | printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line); | |
191 | } | |
192 | ||
193 | void divas_get_version(char *p) | |
194 | { | |
195 | char tmprev[32]; | |
196 | ||
197 | strcpy(tmprev, main_revision); | |
198 | sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS, | |
199 | getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major); | |
200 | } | |
201 | ||
202 | /* -------------------------------------------------------------------------- | |
203 | PCI Bus services | |
204 | -------------------------------------------------------------------------- */ | |
205 | byte diva_os_get_pci_bus(void *pci_dev_handle) | |
206 | { | |
207 | struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle; | |
208 | return ((byte) pdev->bus->number); | |
209 | } | |
210 | ||
211 | byte diva_os_get_pci_func(void *pci_dev_handle) | |
212 | { | |
213 | struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle; | |
214 | return ((byte) pdev->devfn); | |
215 | } | |
216 | ||
217 | unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func, | |
218 | void *pci_dev_handle) | |
219 | { | |
220 | unsigned char irq = 0; | |
221 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
222 | ||
223 | irq = dev->irq; | |
224 | ||
225 | return ((unsigned long) irq); | |
226 | } | |
227 | ||
228 | unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func, | |
229 | int bar, void *pci_dev_handle) | |
230 | { | |
231 | unsigned long ret = 0; | |
232 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
233 | ||
234 | if (bar < 6) { | |
235 | ret = dev->resource[bar].start; | |
236 | } | |
237 | ||
238 | DBG_TRC(("GOT BAR[%d]=%08x", bar, ret)); | |
239 | ||
240 | { | |
241 | unsigned long type = (ret & 0x00000001); | |
242 | if (type & PCI_BASE_ADDRESS_SPACE_IO) { | |
243 | DBG_TRC((" I/O")); | |
244 | ret &= PCI_BASE_ADDRESS_IO_MASK; | |
245 | } else { | |
246 | DBG_TRC((" memory")); | |
247 | ret &= PCI_BASE_ADDRESS_MEM_MASK; | |
248 | } | |
249 | DBG_TRC((" final=%08x", ret)); | |
250 | } | |
251 | ||
252 | return (ret); | |
253 | } | |
254 | ||
255 | void PCIwrite(byte bus, byte func, int offset, void *data, int length, | |
256 | void *pci_dev_handle) | |
257 | { | |
258 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
259 | ||
260 | switch (length) { | |
261 | case 1: /* byte */ | |
262 | pci_write_config_byte(dev, offset, | |
263 | *(unsigned char *) data); | |
264 | break; | |
265 | case 2: /* word */ | |
266 | pci_write_config_word(dev, offset, | |
267 | *(unsigned short *) data); | |
268 | break; | |
269 | case 4: /* dword */ | |
270 | pci_write_config_dword(dev, offset, | |
271 | *(unsigned int *) data); | |
272 | break; | |
273 | ||
274 | default: /* buffer */ | |
275 | if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */ | |
276 | dword *p = (dword *) data; | |
277 | length /= 4; | |
278 | ||
279 | while (length--) { | |
280 | pci_write_config_dword(dev, offset, | |
281 | *(unsigned int *) | |
282 | p++); | |
283 | } | |
284 | } else { /* copy as byte stream */ | |
285 | byte *p = (byte *) data; | |
286 | ||
287 | while (length--) { | |
288 | pci_write_config_byte(dev, offset, | |
289 | *(unsigned char *) | |
290 | p++); | |
291 | } | |
292 | } | |
293 | } | |
294 | } | |
295 | ||
296 | void PCIread(byte bus, byte func, int offset, void *data, int length, | |
297 | void *pci_dev_handle) | |
298 | { | |
299 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
300 | ||
301 | switch (length) { | |
302 | case 1: /* byte */ | |
303 | pci_read_config_byte(dev, offset, (unsigned char *) data); | |
304 | break; | |
305 | case 2: /* word */ | |
306 | pci_read_config_word(dev, offset, (unsigned short *) data); | |
307 | break; | |
308 | case 4: /* dword */ | |
309 | pci_read_config_dword(dev, offset, (unsigned int *) data); | |
310 | break; | |
311 | ||
312 | default: /* buffer */ | |
313 | if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */ | |
314 | dword *p = (dword *) data; | |
315 | length /= 4; | |
316 | ||
317 | while (length--) { | |
318 | pci_read_config_dword(dev, offset, | |
319 | (unsigned int *) | |
320 | p++); | |
321 | } | |
322 | } else { /* copy as byte stream */ | |
323 | byte *p = (byte *) data; | |
324 | ||
325 | while (length--) { | |
326 | pci_read_config_byte(dev, offset, | |
327 | (unsigned char *) | |
328 | p++); | |
329 | } | |
330 | } | |
331 | } | |
332 | } | |
333 | ||
334 | /* | |
335 | Init map with DMA pages. It is not problem if some allocations fail - | |
336 | the channels that will not get one DMA page will use standard PIO | |
337 | interface | |
338 | */ | |
339 | static void *diva_pci_alloc_consistent(struct pci_dev *hwdev, | |
340 | size_t size, | |
341 | dma_addr_t * dma_handle, | |
342 | void **addr_handle) | |
343 | { | |
344 | void *addr = pci_alloc_consistent(hwdev, size, dma_handle); | |
345 | ||
346 | *addr_handle = addr; | |
347 | ||
348 | return (addr); | |
349 | } | |
350 | ||
351 | void diva_init_dma_map(void *hdev, | |
352 | struct _diva_dma_map_entry **ppmap, int nentries) | |
353 | { | |
354 | struct pci_dev *pdev = (struct pci_dev *) hdev; | |
355 | struct _diva_dma_map_entry *pmap = | |
356 | diva_alloc_dma_map(hdev, nentries); | |
357 | ||
358 | if (pmap) { | |
359 | int i; | |
360 | dma_addr_t dma_handle; | |
361 | void *cpu_addr; | |
362 | void *addr_handle; | |
363 | ||
364 | for (i = 0; i < nentries; i++) { | |
365 | if (!(cpu_addr = diva_pci_alloc_consistent(pdev, | |
366 | PAGE_SIZE, | |
367 | &dma_handle, | |
368 | &addr_handle))) | |
369 | { | |
370 | break; | |
371 | } | |
372 | diva_init_dma_map_entry(pmap, i, cpu_addr, | |
373 | (dword) dma_handle, | |
374 | addr_handle); | |
375 | DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)", | |
376 | i, (unsigned long) cpu_addr, | |
377 | (dword) dma_handle, | |
378 | (unsigned long) addr_handle))} | |
379 | } | |
380 | ||
381 | *ppmap = pmap; | |
382 | } | |
383 | ||
384 | /* | |
385 | Free all contained in the map entries and memory used by the map | |
386 | Should be always called after adapter removal from DIDD array | |
387 | */ | |
388 | void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap) | |
389 | { | |
390 | struct pci_dev *pdev = (struct pci_dev *) hdev; | |
391 | int i; | |
392 | dword phys_addr; | |
393 | void *cpu_addr; | |
394 | dma_addr_t dma_handle; | |
395 | void *addr_handle; | |
396 | ||
dd58c0dd | 397 | for (i = 0; (pmap != NULL); i++) { |
1da177e4 LT |
398 | diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr); |
399 | if (!cpu_addr) { | |
400 | break; | |
401 | } | |
402 | addr_handle = diva_get_entry_handle(pmap, i); | |
403 | dma_handle = (dma_addr_t) phys_addr; | |
404 | pci_free_consistent(pdev, PAGE_SIZE, addr_handle, | |
405 | dma_handle); | |
406 | DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i, | |
407 | (unsigned long) cpu_addr, (dword) dma_handle, | |
408 | (unsigned long) addr_handle)) | |
409 | } | |
410 | ||
411 | diva_free_dma_mapping(pmap); | |
412 | } | |
413 | ||
414 | ||
415 | /********************************************************* | |
416 | ** I/O port utilities | |
417 | *********************************************************/ | |
418 | ||
419 | int | |
420 | diva_os_register_io_port(void *adapter, int on, unsigned long port, | |
421 | unsigned long length, const char *name, int id) | |
422 | { | |
423 | if (on) { | |
424 | if (!request_region(port, length, name)) { | |
425 | DBG_ERR(("A: I/O: can't register port=%08x", port)) | |
426 | return (-1); | |
427 | } | |
428 | } else { | |
429 | release_region(port, length); | |
430 | } | |
431 | return (0); | |
432 | } | |
433 | ||
434 | void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length) | |
435 | { | |
436 | void __iomem *ret = ioremap(bar, area_length); | |
437 | DBG_TRC(("remap(%08x)->%p", bar, ret)); | |
438 | return (ret); | |
439 | } | |
440 | ||
441 | void divasa_unmap_pci_bar(void __iomem *bar) | |
442 | { | |
443 | if (bar) { | |
444 | iounmap(bar); | |
445 | } | |
446 | } | |
447 | ||
448 | /********************************************************* | |
449 | ** I/O port access | |
450 | *********************************************************/ | |
451 | byte __inline__ inpp(void __iomem *addr) | |
452 | { | |
453 | return (inb((unsigned long) addr)); | |
454 | } | |
455 | ||
456 | word __inline__ inppw(void __iomem *addr) | |
457 | { | |
458 | return (inw((unsigned long) addr)); | |
459 | } | |
460 | ||
461 | void __inline__ inppw_buffer(void __iomem *addr, void *P, int length) | |
462 | { | |
463 | insw((unsigned long) addr, (word *) P, length >> 1); | |
464 | } | |
465 | ||
466 | void __inline__ outppw_buffer(void __iomem *addr, void *P, int length) | |
467 | { | |
468 | outsw((unsigned long) addr, (word *) P, length >> 1); | |
469 | } | |
470 | ||
471 | void __inline__ outppw(void __iomem *addr, word w) | |
472 | { | |
473 | outw(w, (unsigned long) addr); | |
474 | } | |
475 | ||
476 | void __inline__ outpp(void __iomem *addr, word p) | |
477 | { | |
478 | outb(p, (unsigned long) addr); | |
479 | } | |
480 | ||
481 | /* -------------------------------------------------------------------------- | |
482 | IRQ request / remove | |
483 | -------------------------------------------------------------------------- */ | |
484 | int diva_os_register_irq(void *context, byte irq, const char *name) | |
485 | { | |
486 | int result = request_irq(irq, diva_os_irq_wrapper, | |
9ba02bec | 487 | IRQF_DISABLED | IRQF_SHARED, name, context); |
1da177e4 LT |
488 | return (result); |
489 | } | |
490 | ||
491 | void diva_os_remove_irq(void *context, byte irq) | |
492 | { | |
493 | free_irq(irq, context); | |
494 | } | |
495 | ||
496 | /* -------------------------------------------------------------------------- | |
497 | DPC framework implementation | |
498 | -------------------------------------------------------------------------- */ | |
499 | static void diva_os_dpc_proc(unsigned long context) | |
500 | { | |
501 | diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context; | |
502 | diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr; | |
503 | ||
504 | (*(pisr->callback)) (pisr, pisr->callback_context); | |
505 | } | |
506 | ||
507 | int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr, | |
508 | diva_os_soft_isr_callback_t callback, | |
509 | void *callback_context) | |
510 | { | |
511 | diva_os_thread_dpc_t *pdpc; | |
512 | ||
513 | pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc)); | |
514 | if (!(psoft_isr->object = pdpc)) { | |
515 | return (-1); | |
516 | } | |
517 | memset(pdpc, 0x00, sizeof(*pdpc)); | |
518 | psoft_isr->callback = callback; | |
519 | psoft_isr->callback_context = callback_context; | |
520 | pdpc->psoft_isr = psoft_isr; | |
521 | tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc); | |
522 | ||
523 | return (0); | |
524 | } | |
525 | ||
526 | int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr) | |
527 | { | |
528 | if (psoft_isr && psoft_isr->object) { | |
529 | diva_os_thread_dpc_t *pdpc = | |
530 | (diva_os_thread_dpc_t *) psoft_isr->object; | |
531 | ||
532 | tasklet_schedule(&pdpc->divas_task); | |
533 | } | |
534 | ||
535 | return (1); | |
536 | } | |
537 | ||
538 | int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr) | |
539 | { | |
540 | return (0); | |
541 | } | |
542 | ||
543 | void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr) | |
544 | { | |
545 | if (psoft_isr && psoft_isr->object) { | |
546 | diva_os_thread_dpc_t *pdpc = | |
547 | (diva_os_thread_dpc_t *) psoft_isr->object; | |
548 | void *mem; | |
549 | ||
550 | tasklet_kill(&pdpc->divas_task); | |
551 | flush_scheduled_work(); | |
552 | mem = psoft_isr->object; | |
553 | psoft_isr->object = NULL; | |
554 | diva_os_free(0, mem); | |
555 | } | |
556 | } | |
557 | ||
558 | /* | |
559 | * kernel/user space copy functions | |
560 | */ | |
561 | static int | |
562 | xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length) | |
563 | { | |
564 | if (copy_to_user(dst, src, length)) { | |
565 | return (-EFAULT); | |
566 | } | |
567 | return (length); | |
568 | } | |
569 | ||
570 | static int | |
571 | xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length) | |
572 | { | |
573 | if (copy_from_user(dst, src, length)) { | |
574 | return (-EFAULT); | |
575 | } | |
576 | return (length); | |
577 | } | |
578 | ||
579 | /* | |
580 | * device node operations | |
581 | */ | |
582 | static int divas_open(struct inode *inode, struct file *file) | |
583 | { | |
f2b9857e | 584 | cycle_kernel_lock(); |
1da177e4 LT |
585 | return (0); |
586 | } | |
587 | ||
588 | static int divas_release(struct inode *inode, struct file *file) | |
589 | { | |
590 | if (file->private_data) { | |
591 | diva_xdi_close_adapter(file->private_data, file); | |
592 | } | |
593 | return (0); | |
594 | } | |
595 | ||
596 | static ssize_t divas_write(struct file *file, const char __user *buf, | |
597 | size_t count, loff_t * ppos) | |
598 | { | |
599 | int ret = -EINVAL; | |
600 | ||
601 | if (!file->private_data) { | |
602 | file->private_data = diva_xdi_open_adapter(file, buf, | |
603 | count, | |
604 | xdi_copy_from_user); | |
605 | } | |
606 | if (!file->private_data) { | |
607 | return (-ENODEV); | |
608 | } | |
609 | ||
610 | ret = diva_xdi_write(file->private_data, file, | |
611 | buf, count, xdi_copy_from_user); | |
612 | switch (ret) { | |
613 | case -1: /* Message should be removed from rx mailbox first */ | |
614 | ret = -EBUSY; | |
615 | break; | |
616 | case -2: /* invalid adapter was specified in this call */ | |
617 | ret = -ENOMEM; | |
618 | break; | |
619 | case -3: | |
620 | ret = -ENXIO; | |
621 | break; | |
622 | } | |
623 | DBG_TRC(("write: ret %d", ret)); | |
624 | return (ret); | |
625 | } | |
626 | ||
627 | static ssize_t divas_read(struct file *file, char __user *buf, | |
628 | size_t count, loff_t * ppos) | |
629 | { | |
630 | int ret = -EINVAL; | |
631 | ||
632 | if (!file->private_data) { | |
633 | file->private_data = diva_xdi_open_adapter(file, buf, | |
634 | count, | |
635 | xdi_copy_from_user); | |
636 | } | |
637 | if (!file->private_data) { | |
638 | return (-ENODEV); | |
639 | } | |
640 | ||
641 | ret = diva_xdi_read(file->private_data, file, | |
642 | buf, count, xdi_copy_to_user); | |
643 | switch (ret) { | |
644 | case -1: /* RX mailbox is empty */ | |
645 | ret = -EAGAIN; | |
646 | break; | |
647 | case -2: /* no memory, mailbox was cleared, last command is failed */ | |
648 | ret = -ENOMEM; | |
649 | break; | |
650 | case -3: /* can't copy to user, retry */ | |
651 | ret = -EFAULT; | |
652 | break; | |
653 | } | |
654 | DBG_TRC(("read: ret %d", ret)); | |
655 | return (ret); | |
656 | } | |
657 | ||
658 | static unsigned int divas_poll(struct file *file, poll_table * wait) | |
659 | { | |
660 | if (!file->private_data) { | |
661 | return (POLLERR); | |
662 | } | |
663 | return (POLLIN | POLLRDNORM); | |
664 | } | |
665 | ||
2b8693c0 | 666 | static const struct file_operations divas_fops = { |
1da177e4 LT |
667 | .owner = THIS_MODULE, |
668 | .llseek = no_llseek, | |
669 | .read = divas_read, | |
670 | .write = divas_write, | |
671 | .poll = divas_poll, | |
672 | .open = divas_open, | |
673 | .release = divas_release | |
674 | }; | |
675 | ||
676 | static void divas_unregister_chrdev(void) | |
677 | { | |
1da177e4 LT |
678 | unregister_chrdev(major, DEVNAME); |
679 | } | |
680 | ||
681 | static int DIVA_INIT_FUNCTION divas_register_chrdev(void) | |
682 | { | |
683 | if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0) | |
684 | { | |
685 | printk(KERN_ERR "%s: failed to create /dev entry.\n", | |
686 | DRIVERLNAME); | |
687 | return (0); | |
688 | } | |
1da177e4 LT |
689 | |
690 | return (1); | |
691 | } | |
692 | ||
693 | /* -------------------------------------------------------------------------- | |
694 | PCI driver section | |
695 | -------------------------------------------------------------------------- */ | |
696 | static int __devinit divas_init_one(struct pci_dev *pdev, | |
697 | const struct pci_device_id *ent) | |
698 | { | |
699 | void *pdiva = NULL; | |
700 | u8 pci_latency; | |
701 | u8 new_latency = 32; | |
702 | ||
703 | DBG_TRC(("%s bus: %08x fn: %08x insertion.\n", | |
704 | CardProperties[ent->driver_data].Name, | |
705 | pdev->bus->number, pdev->devfn)) | |
706 | printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n", | |
707 | DRIVERLNAME, CardProperties[ent->driver_data].Name, | |
708 | pdev->bus->number, pdev->devfn); | |
709 | ||
710 | if (pci_enable_device(pdev)) { | |
711 | DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n", | |
712 | DRIVERLNAME, | |
713 | CardProperties[ent->driver_data].Name, | |
714 | pdev->bus->number, | |
715 | pdev->devfn)) | |
716 | printk(KERN_ERR | |
717 | "%s: %s bus: %08x fn: %08x device init failed.\n", | |
718 | DRIVERLNAME, | |
719 | CardProperties[ent->driver_data]. | |
720 | Name, pdev->bus->number, | |
721 | pdev->devfn); | |
722 | return (-EIO); | |
723 | } | |
724 | ||
725 | pci_set_master(pdev); | |
726 | ||
727 | pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency); | |
728 | if (!pci_latency) { | |
729 | DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n", | |
730 | DRIVERLNAME, pdev->bus->number, pdev->devfn)) | |
731 | printk(KERN_INFO | |
732 | "%s: bus: %08x fn: %08x fix latency.\n", | |
733 | DRIVERLNAME, pdev->bus->number, pdev->devfn); | |
734 | pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency); | |
735 | } | |
736 | ||
737 | if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) { | |
738 | DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n", | |
739 | DRIVERLNAME, | |
740 | CardProperties[ent->driver_data].Name, | |
741 | pdev->bus->number, | |
742 | pdev->devfn)) | |
743 | printk(KERN_ERR | |
744 | "%s: %s bus: %08x fn: %08x card init failed.\n", | |
745 | DRIVERLNAME, | |
746 | CardProperties[ent->driver_data]. | |
747 | Name, pdev->bus->number, | |
748 | pdev->devfn); | |
749 | return (-EIO); | |
750 | } | |
751 | ||
752 | pci_set_drvdata(pdev, pdiva); | |
753 | ||
754 | return (0); | |
755 | } | |
756 | ||
757 | static void __devexit divas_remove_one(struct pci_dev *pdev) | |
758 | { | |
759 | void *pdiva = pci_get_drvdata(pdev); | |
760 | ||
761 | DBG_TRC(("bus: %08x fn: %08x removal.\n", | |
762 | pdev->bus->number, pdev->devfn)) | |
763 | printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n", | |
764 | DRIVERLNAME, pdev->bus->number, pdev->devfn); | |
765 | ||
766 | if (pdiva) { | |
767 | diva_driver_remove_card(pdiva); | |
768 | } | |
769 | ||
770 | } | |
771 | ||
772 | /* -------------------------------------------------------------------------- | |
773 | Driver Load / Startup | |
774 | -------------------------------------------------------------------------- */ | |
775 | static int DIVA_INIT_FUNCTION divas_init(void) | |
776 | { | |
777 | char tmprev[50]; | |
778 | int ret = 0; | |
779 | ||
780 | printk(KERN_INFO "%s\n", DRIVERNAME); | |
781 | printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS); | |
782 | strcpy(tmprev, main_revision); | |
783 | printk("%s Build: %s(%s)\n", getrev(tmprev), | |
784 | diva_xdi_common_code_build, DIVA_BUILD); | |
785 | printk(KERN_INFO "%s: support for: ", DRIVERLNAME); | |
786 | #ifdef CONFIG_ISDN_DIVAS_BRIPCI | |
787 | printk("BRI/PCI "); | |
788 | #endif | |
789 | #ifdef CONFIG_ISDN_DIVAS_PRIPCI | |
790 | printk("PRI/PCI "); | |
791 | #endif | |
792 | printk("adapters\n"); | |
793 | ||
794 | if (!divasfunc_init(dbgmask)) { | |
795 | printk(KERN_ERR "%s: failed to connect to DIDD.\n", | |
796 | DRIVERLNAME); | |
797 | ret = -EIO; | |
798 | goto out; | |
799 | } | |
800 | ||
801 | if (!divas_register_chrdev()) { | |
802 | #ifdef MODULE | |
803 | divasfunc_exit(); | |
804 | #endif | |
805 | ret = -EIO; | |
806 | goto out; | |
807 | } | |
808 | ||
809 | if (!create_divas_proc()) { | |
810 | #ifdef MODULE | |
1da177e4 LT |
811 | divas_unregister_chrdev(); |
812 | divasfunc_exit(); | |
813 | #endif | |
814 | printk(KERN_ERR "%s: failed to create proc entry.\n", | |
815 | DRIVERLNAME); | |
816 | ret = -EIO; | |
817 | goto out; | |
818 | } | |
819 | ||
820 | if ((ret = pci_register_driver(&diva_pci_driver))) { | |
821 | #ifdef MODULE | |
822 | remove_divas_proc(); | |
823 | divas_unregister_chrdev(); | |
824 | divasfunc_exit(); | |
825 | #endif | |
826 | printk(KERN_ERR "%s: failed to init pci driver.\n", | |
827 | DRIVERLNAME); | |
828 | goto out; | |
829 | } | |
830 | printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major); | |
831 | ||
832 | out: | |
833 | return (ret); | |
834 | } | |
835 | ||
836 | /* -------------------------------------------------------------------------- | |
837 | Driver Unload | |
838 | -------------------------------------------------------------------------- */ | |
839 | static void DIVA_EXIT_FUNCTION divas_exit(void) | |
840 | { | |
841 | pci_unregister_driver(&diva_pci_driver); | |
842 | remove_divas_proc(); | |
843 | divas_unregister_chrdev(); | |
844 | divasfunc_exit(); | |
845 | ||
846 | printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME); | |
847 | } | |
848 | ||
849 | module_init(divas_init); | |
850 | module_exit(divas_exit); |