]>
Commit | Line | Data |
---|---|---|
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 | ||
39 | static char *main_revision = "$Revision: 1.55.4.6 $"; | |
40 | ||
41 | static int major; | |
42 | ||
43 | static int dbgmask; | |
44 | ||
45 | MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards"); | |
46 | MODULE_AUTHOR("Cytronics & Melware, Eicon Networks"); | |
47 | MODULE_LICENSE("GPL"); | |
48 | ||
49 | module_param(dbgmask, int, 0); | |
50 | MODULE_PARM_DESC(dbgmask, "initial debug mask"); | |
51 | ||
52 | static char *DRIVERNAME = | |
475be4d8 | 53 | "Eicon DIVA Server driver (http://www.melware.net)"; |
1da177e4 LT |
54 | static char *DRIVERLNAME = "divas"; |
55 | static char *DEVNAME = "Divas"; | |
56 | char *DRIVERRELEASE_DIVAS = "2.0"; | |
57 | ||
7d12e780 | 58 | extern irqreturn_t diva_os_irq_wrapper(int irq, void *context); |
1da177e4 LT |
59 | extern int create_divas_proc(void); |
60 | extern void remove_divas_proc(void); | |
61 | extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf); | |
62 | extern int divasfunc_init(int dbgmask); | |
63 | extern void divasfunc_exit(void); | |
64 | ||
65 | typedef 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 | */ |
1da177e4 | 113 | static 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 | }; |
149 | MODULE_DEVICE_TABLE(pci, divas_pci_tbl); | |
150 | ||
151 | static int divas_init_one(struct pci_dev *pdev, | |
152 | const struct pci_device_id *ent); | |
ed5a84cd | 153 | static void divas_remove_one(struct pci_dev *pdev); |
1da177e4 LT |
154 | |
155 | static 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 | *********************************************************/ | |
165 | static 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 | ||
178 | void 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 | ||
190 | void 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 | -------------------------------------------------------------------------- */ |
202 | byte 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 | ||
208 | byte 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 | ||
214 | unsigned 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 | ||
225 | unsigned 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 | ||
252 | void 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 | ||
293 | void 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 |
336 | static 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 | ||
348 | void 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 |
385 | void 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 | ||
416 | int | |
417 | diva_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 | ||
431 | void __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 | ||
438 | void 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 | 448 | inline byte inpp(void __iomem *addr) |
1da177e4 LT |
449 | { |
450 | return (inb((unsigned long) addr)); | |
451 | } | |
452 | ||
ac565065 | 453 | inline word inppw(void __iomem *addr) |
1da177e4 LT |
454 | { |
455 | return (inw((unsigned long) addr)); | |
456 | } | |
457 | ||
ac565065 | 458 | inline 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 | 463 | inline 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 | 468 | inline void outppw(void __iomem *addr, word w) |
1da177e4 LT |
469 | { |
470 | outw(w, (unsigned long) addr); | |
471 | } | |
472 | ||
ac565065 | 473 | inline 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 | -------------------------------------------------------------------------- */ |
481 | int 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 | ||
488 | void 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 | -------------------------------------------------------------------------- */ |
496 | static 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 | 504 | int 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 | 523 | int 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 | 535 | int diva_os_cancel_soft_isr(diva_os_soft_isr_t *psoft_isr) |
1da177e4 LT |
536 | { |
537 | return (0); | |
538 | } | |
539 | ||
475be4d8 | 540 | void 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 | */ | |
557 | static int | |
558 | xdi_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 | ||
566 | static int | |
567 | xdi_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 | */ | |
578 | static int divas_open(struct inode *inode, struct file *file) | |
579 | { | |
580 | return (0); | |
581 | } | |
582 | ||
583 | static 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 | ||
591 | static 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 | ||
622 | static 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 | 653 | static 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 | 661 | static 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 | ||
671 | static void divas_unregister_chrdev(void) | |
672 | { | |
1da177e4 LT |
673 | unregister_chrdev(major, DEVNAME); |
674 | } | |
675 | ||
d7398892 | 676 | static 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 | 691 | static 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 | 751 | static 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 | 769 | static 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 | 826 | out: |
1da177e4 LT |
827 | return (ret); |
828 | } | |
829 | ||
830 | /* -------------------------------------------------------------------------- | |
475be4d8 | 831 | Driver Unload |
1da177e4 | 832 | -------------------------------------------------------------------------- */ |
d7398892 | 833 | static 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 | ||
843 | module_init(divas_init); | |
844 | module_exit(divas_exit); |