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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> | |
15 | #include <linux/sched.h> | |
1da177e4 LT |
16 | #include <asm/uaccess.h> |
17 | #include <asm/io.h> | |
18 | #include <linux/ioport.h> | |
19 | #include <linux/workqueue.h> | |
20 | #include <linux/pci.h> | |
21 | #include <linux/smp_lock.h> | |
22 | #include <linux/interrupt.h> | |
23 | #include <linux/list.h> | |
24 | #include <linux/poll.h> | |
25 | #include <linux/kmod.h> | |
26 | ||
27 | #include "platform.h" | |
28 | #undef ID_MASK | |
29 | #undef N_DATA | |
30 | #include "pc.h" | |
31 | #include "di_defs.h" | |
32 | #include "divasync.h" | |
33 | #include "diva.h" | |
34 | #include "di.h" | |
35 | #include "io.h" | |
36 | #include "xdi_msg.h" | |
37 | #include "xdi_adapter.h" | |
38 | #include "xdi_vers.h" | |
39 | #include "diva_dma.h" | |
40 | #include "diva_pci.h" | |
41 | ||
42 | static char *main_revision = "$Revision: 1.55.4.6 $"; | |
43 | ||
44 | static int major; | |
45 | ||
46 | static int dbgmask; | |
47 | ||
48 | MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards"); | |
49 | MODULE_AUTHOR("Cytronics & Melware, Eicon Networks"); | |
50 | MODULE_LICENSE("GPL"); | |
51 | ||
52 | module_param(dbgmask, int, 0); | |
53 | MODULE_PARM_DESC(dbgmask, "initial debug mask"); | |
54 | ||
55 | static char *DRIVERNAME = | |
56 | "Eicon DIVA Server driver (http://www.melware.net)"; | |
57 | static char *DRIVERLNAME = "divas"; | |
58 | static char *DEVNAME = "Divas"; | |
59 | char *DRIVERRELEASE_DIVAS = "2.0"; | |
60 | ||
7d12e780 | 61 | extern irqreturn_t diva_os_irq_wrapper(int irq, void *context); |
1da177e4 LT |
62 | extern int create_divas_proc(void); |
63 | extern void remove_divas_proc(void); | |
64 | extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf); | |
65 | extern int divasfunc_init(int dbgmask); | |
66 | extern void divasfunc_exit(void); | |
67 | ||
68 | typedef struct _diva_os_thread_dpc { | |
69 | struct tasklet_struct divas_task; | |
70 | diva_os_soft_isr_t *psoft_isr; | |
71 | } diva_os_thread_dpc_t; | |
72 | ||
73 | /* -------------------------------------------------------------------------- | |
74 | PCI driver interface section | |
75 | -------------------------------------------------------------------------- */ | |
76 | /* | |
77 | vendor, device Vendor and device ID to match (or PCI_ANY_ID) | |
78 | subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID) | |
79 | subdevice | |
80 | class, Device class to match. The class_mask tells which bits | |
81 | class_mask of the class are honored during the comparison. | |
82 | driver_data Data private to the driver. | |
83 | */ | |
84 | ||
85 | #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2) | |
86 | #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015 | |
87 | #endif | |
88 | ||
89 | #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP) | |
90 | #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016 | |
91 | #endif | |
92 | ||
93 | #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP) | |
94 | #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017 | |
95 | #endif | |
96 | ||
97 | #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2) | |
98 | #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018 | |
99 | #endif | |
100 | ||
101 | #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP) | |
102 | #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019 | |
103 | #endif | |
104 | ||
105 | #if !defined(PCI_DEVICE_ID_EICON_2F) | |
106 | #define PCI_DEVICE_ID_EICON_2F 0xE01A | |
107 | #endif | |
108 | ||
109 | #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP) | |
110 | #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B | |
111 | #endif | |
112 | ||
113 | /* | |
114 | This table should be sorted by PCI device ID | |
115 | */ | |
116 | static struct pci_device_id divas_pci_tbl[] = { | |
117 | /* Diva Server BRI-2M PCI 0xE010 */ | |
118 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA, | |
119 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI}, | |
120 | /* Diva Server 4BRI-8M PCI 0xE012 */ | |
121 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ, | |
122 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI}, | |
123 | /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */ | |
124 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U, | |
125 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI}, | |
126 | /* Diva Server PRI-30M PCI 0xE014 */ | |
127 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP, | |
128 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI}, | |
129 | /* Diva Server PRI 2.0 adapter 0xE015 */ | |
130 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2, | |
131 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI}, | |
132 | /* Diva Server Voice 4BRI-8M PCI 0xE016 */ | |
133 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP, | |
134 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI}, | |
135 | /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */ | |
136 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP, | |
137 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI}, | |
138 | /* Diva Server BRI-2M 2.0 PCI 0xE018 */ | |
139 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2, | |
140 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI}, | |
141 | /* Diva Server Voice PRI 2.0 PCI 0xE019 */ | |
142 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP, | |
143 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, | |
144 | CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI}, | |
145 | /* Diva Server 2FX 0xE01A */ | |
146 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F, | |
147 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI}, | |
148 | /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */ | |
149 | {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP, | |
150 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI}, | |
151 | {0,} /* 0 terminated list. */ | |
152 | }; | |
153 | MODULE_DEVICE_TABLE(pci, divas_pci_tbl); | |
154 | ||
155 | static int divas_init_one(struct pci_dev *pdev, | |
156 | const struct pci_device_id *ent); | |
157 | static void __devexit divas_remove_one(struct pci_dev *pdev); | |
158 | ||
159 | static struct pci_driver diva_pci_driver = { | |
160 | .name = "divas", | |
161 | .probe = divas_init_one, | |
162 | .remove = __devexit_p(divas_remove_one), | |
163 | .id_table = divas_pci_tbl, | |
164 | }; | |
165 | ||
166 | /********************************************************* | |
167 | ** little helper functions | |
168 | *********************************************************/ | |
169 | static char *getrev(const char *revision) | |
170 | { | |
171 | char *rev; | |
172 | char *p; | |
173 | if ((p = strchr(revision, ':'))) { | |
174 | rev = p + 2; | |
175 | p = strchr(rev, '$'); | |
176 | *--p = 0; | |
177 | } else | |
178 | rev = "1.0"; | |
179 | return rev; | |
180 | } | |
181 | ||
182 | void diva_log_info(unsigned char *format, ...) | |
183 | { | |
184 | va_list args; | |
185 | unsigned char line[160]; | |
186 | ||
187 | va_start(args, format); | |
188 | vsprintf(line, format, args); | |
189 | va_end(args); | |
190 | ||
191 | printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line); | |
192 | } | |
193 | ||
194 | void divas_get_version(char *p) | |
195 | { | |
196 | char tmprev[32]; | |
197 | ||
198 | strcpy(tmprev, main_revision); | |
199 | sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS, | |
200 | getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major); | |
201 | } | |
202 | ||
203 | /* -------------------------------------------------------------------------- | |
204 | PCI Bus services | |
205 | -------------------------------------------------------------------------- */ | |
206 | byte diva_os_get_pci_bus(void *pci_dev_handle) | |
207 | { | |
208 | struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle; | |
209 | return ((byte) pdev->bus->number); | |
210 | } | |
211 | ||
212 | byte diva_os_get_pci_func(void *pci_dev_handle) | |
213 | { | |
214 | struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle; | |
215 | return ((byte) pdev->devfn); | |
216 | } | |
217 | ||
218 | unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func, | |
219 | void *pci_dev_handle) | |
220 | { | |
221 | unsigned char irq = 0; | |
222 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
223 | ||
224 | irq = dev->irq; | |
225 | ||
226 | return ((unsigned long) irq); | |
227 | } | |
228 | ||
229 | unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func, | |
230 | int bar, void *pci_dev_handle) | |
231 | { | |
232 | unsigned long ret = 0; | |
233 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
234 | ||
235 | if (bar < 6) { | |
236 | ret = dev->resource[bar].start; | |
237 | } | |
238 | ||
239 | DBG_TRC(("GOT BAR[%d]=%08x", bar, ret)); | |
240 | ||
241 | { | |
242 | unsigned long type = (ret & 0x00000001); | |
243 | if (type & PCI_BASE_ADDRESS_SPACE_IO) { | |
244 | DBG_TRC((" I/O")); | |
245 | ret &= PCI_BASE_ADDRESS_IO_MASK; | |
246 | } else { | |
247 | DBG_TRC((" memory")); | |
248 | ret &= PCI_BASE_ADDRESS_MEM_MASK; | |
249 | } | |
250 | DBG_TRC((" final=%08x", ret)); | |
251 | } | |
252 | ||
253 | return (ret); | |
254 | } | |
255 | ||
256 | void PCIwrite(byte bus, byte func, int offset, void *data, int length, | |
257 | void *pci_dev_handle) | |
258 | { | |
259 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
260 | ||
261 | switch (length) { | |
262 | case 1: /* byte */ | |
263 | pci_write_config_byte(dev, offset, | |
264 | *(unsigned char *) data); | |
265 | break; | |
266 | case 2: /* word */ | |
267 | pci_write_config_word(dev, offset, | |
268 | *(unsigned short *) data); | |
269 | break; | |
270 | case 4: /* dword */ | |
271 | pci_write_config_dword(dev, offset, | |
272 | *(unsigned int *) data); | |
273 | break; | |
274 | ||
275 | default: /* buffer */ | |
276 | if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */ | |
277 | dword *p = (dword *) data; | |
278 | length /= 4; | |
279 | ||
280 | while (length--) { | |
281 | pci_write_config_dword(dev, offset, | |
282 | *(unsigned int *) | |
283 | p++); | |
284 | } | |
285 | } else { /* copy as byte stream */ | |
286 | byte *p = (byte *) data; | |
287 | ||
288 | while (length--) { | |
289 | pci_write_config_byte(dev, offset, | |
290 | *(unsigned char *) | |
291 | p++); | |
292 | } | |
293 | } | |
294 | } | |
295 | } | |
296 | ||
297 | void PCIread(byte bus, byte func, int offset, void *data, int length, | |
298 | void *pci_dev_handle) | |
299 | { | |
300 | struct pci_dev *dev = (struct pci_dev *) pci_dev_handle; | |
301 | ||
302 | switch (length) { | |
303 | case 1: /* byte */ | |
304 | pci_read_config_byte(dev, offset, (unsigned char *) data); | |
305 | break; | |
306 | case 2: /* word */ | |
307 | pci_read_config_word(dev, offset, (unsigned short *) data); | |
308 | break; | |
309 | case 4: /* dword */ | |
310 | pci_read_config_dword(dev, offset, (unsigned int *) data); | |
311 | break; | |
312 | ||
313 | default: /* buffer */ | |
314 | if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */ | |
315 | dword *p = (dword *) data; | |
316 | length /= 4; | |
317 | ||
318 | while (length--) { | |
319 | pci_read_config_dword(dev, offset, | |
320 | (unsigned int *) | |
321 | p++); | |
322 | } | |
323 | } else { /* copy as byte stream */ | |
324 | byte *p = (byte *) data; | |
325 | ||
326 | while (length--) { | |
327 | pci_read_config_byte(dev, offset, | |
328 | (unsigned char *) | |
329 | p++); | |
330 | } | |
331 | } | |
332 | } | |
333 | } | |
334 | ||
335 | /* | |
336 | Init map with DMA pages. It is not problem if some allocations fail - | |
337 | the channels that will not get one DMA page will use standard PIO | |
338 | interface | |
339 | */ | |
340 | static void *diva_pci_alloc_consistent(struct pci_dev *hwdev, | |
341 | size_t size, | |
342 | dma_addr_t * dma_handle, | |
343 | void **addr_handle) | |
344 | { | |
345 | void *addr = pci_alloc_consistent(hwdev, size, dma_handle); | |
346 | ||
347 | *addr_handle = addr; | |
348 | ||
349 | return (addr); | |
350 | } | |
351 | ||
352 | void diva_init_dma_map(void *hdev, | |
353 | struct _diva_dma_map_entry **ppmap, int nentries) | |
354 | { | |
355 | struct pci_dev *pdev = (struct pci_dev *) hdev; | |
356 | struct _diva_dma_map_entry *pmap = | |
357 | diva_alloc_dma_map(hdev, nentries); | |
358 | ||
359 | if (pmap) { | |
360 | int i; | |
361 | dma_addr_t dma_handle; | |
362 | void *cpu_addr; | |
363 | void *addr_handle; | |
364 | ||
365 | for (i = 0; i < nentries; i++) { | |
366 | if (!(cpu_addr = diva_pci_alloc_consistent(pdev, | |
367 | PAGE_SIZE, | |
368 | &dma_handle, | |
369 | &addr_handle))) | |
370 | { | |
371 | break; | |
372 | } | |
373 | diva_init_dma_map_entry(pmap, i, cpu_addr, | |
374 | (dword) dma_handle, | |
375 | addr_handle); | |
376 | DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)", | |
377 | i, (unsigned long) cpu_addr, | |
378 | (dword) dma_handle, | |
379 | (unsigned long) addr_handle))} | |
380 | } | |
381 | ||
382 | *ppmap = pmap; | |
383 | } | |
384 | ||
385 | /* | |
386 | Free all contained in the map entries and memory used by the map | |
387 | Should be always called after adapter removal from DIDD array | |
388 | */ | |
389 | void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap) | |
390 | { | |
391 | struct pci_dev *pdev = (struct pci_dev *) hdev; | |
392 | int i; | |
393 | dword phys_addr; | |
394 | void *cpu_addr; | |
395 | dma_addr_t dma_handle; | |
396 | void *addr_handle; | |
397 | ||
398 | for (i = 0; (pmap != 0); i++) { | |
399 | diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr); | |
400 | if (!cpu_addr) { | |
401 | break; | |
402 | } | |
403 | addr_handle = diva_get_entry_handle(pmap, i); | |
404 | dma_handle = (dma_addr_t) phys_addr; | |
405 | pci_free_consistent(pdev, PAGE_SIZE, addr_handle, | |
406 | dma_handle); | |
407 | DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i, | |
408 | (unsigned long) cpu_addr, (dword) dma_handle, | |
409 | (unsigned long) addr_handle)) | |
410 | } | |
411 | ||
412 | diva_free_dma_mapping(pmap); | |
413 | } | |
414 | ||
415 | ||
416 | /********************************************************* | |
417 | ** I/O port utilities | |
418 | *********************************************************/ | |
419 | ||
420 | int | |
421 | diva_os_register_io_port(void *adapter, int on, unsigned long port, | |
422 | unsigned long length, const char *name, int id) | |
423 | { | |
424 | if (on) { | |
425 | if (!request_region(port, length, name)) { | |
426 | DBG_ERR(("A: I/O: can't register port=%08x", port)) | |
427 | return (-1); | |
428 | } | |
429 | } else { | |
430 | release_region(port, length); | |
431 | } | |
432 | return (0); | |
433 | } | |
434 | ||
435 | void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length) | |
436 | { | |
437 | void __iomem *ret = ioremap(bar, area_length); | |
438 | DBG_TRC(("remap(%08x)->%p", bar, ret)); | |
439 | return (ret); | |
440 | } | |
441 | ||
442 | void divasa_unmap_pci_bar(void __iomem *bar) | |
443 | { | |
444 | if (bar) { | |
445 | iounmap(bar); | |
446 | } | |
447 | } | |
448 | ||
449 | /********************************************************* | |
450 | ** I/O port access | |
451 | *********************************************************/ | |
452 | byte __inline__ inpp(void __iomem *addr) | |
453 | { | |
454 | return (inb((unsigned long) addr)); | |
455 | } | |
456 | ||
457 | word __inline__ inppw(void __iomem *addr) | |
458 | { | |
459 | return (inw((unsigned long) addr)); | |
460 | } | |
461 | ||
462 | void __inline__ inppw_buffer(void __iomem *addr, void *P, int length) | |
463 | { | |
464 | insw((unsigned long) addr, (word *) P, length >> 1); | |
465 | } | |
466 | ||
467 | void __inline__ outppw_buffer(void __iomem *addr, void *P, int length) | |
468 | { | |
469 | outsw((unsigned long) addr, (word *) P, length >> 1); | |
470 | } | |
471 | ||
472 | void __inline__ outppw(void __iomem *addr, word w) | |
473 | { | |
474 | outw(w, (unsigned long) addr); | |
475 | } | |
476 | ||
477 | void __inline__ outpp(void __iomem *addr, word p) | |
478 | { | |
479 | outb(p, (unsigned long) addr); | |
480 | } | |
481 | ||
482 | /* -------------------------------------------------------------------------- | |
483 | IRQ request / remove | |
484 | -------------------------------------------------------------------------- */ | |
485 | int diva_os_register_irq(void *context, byte irq, const char *name) | |
486 | { | |
487 | int result = request_irq(irq, diva_os_irq_wrapper, | |
9ba02bec | 488 | IRQF_DISABLED | IRQF_SHARED, name, context); |
1da177e4 LT |
489 | return (result); |
490 | } | |
491 | ||
492 | void diva_os_remove_irq(void *context, byte irq) | |
493 | { | |
494 | free_irq(irq, context); | |
495 | } | |
496 | ||
497 | /* -------------------------------------------------------------------------- | |
498 | DPC framework implementation | |
499 | -------------------------------------------------------------------------- */ | |
500 | static void diva_os_dpc_proc(unsigned long context) | |
501 | { | |
502 | diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context; | |
503 | diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr; | |
504 | ||
505 | (*(pisr->callback)) (pisr, pisr->callback_context); | |
506 | } | |
507 | ||
508 | int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr, | |
509 | diva_os_soft_isr_callback_t callback, | |
510 | void *callback_context) | |
511 | { | |
512 | diva_os_thread_dpc_t *pdpc; | |
513 | ||
514 | pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc)); | |
515 | if (!(psoft_isr->object = pdpc)) { | |
516 | return (-1); | |
517 | } | |
518 | memset(pdpc, 0x00, sizeof(*pdpc)); | |
519 | psoft_isr->callback = callback; | |
520 | psoft_isr->callback_context = callback_context; | |
521 | pdpc->psoft_isr = psoft_isr; | |
522 | tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc); | |
523 | ||
524 | return (0); | |
525 | } | |
526 | ||
527 | int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr) | |
528 | { | |
529 | if (psoft_isr && psoft_isr->object) { | |
530 | diva_os_thread_dpc_t *pdpc = | |
531 | (diva_os_thread_dpc_t *) psoft_isr->object; | |
532 | ||
533 | tasklet_schedule(&pdpc->divas_task); | |
534 | } | |
535 | ||
536 | return (1); | |
537 | } | |
538 | ||
539 | int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr) | |
540 | { | |
541 | return (0); | |
542 | } | |
543 | ||
544 | void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr) | |
545 | { | |
546 | if (psoft_isr && psoft_isr->object) { | |
547 | diva_os_thread_dpc_t *pdpc = | |
548 | (diva_os_thread_dpc_t *) psoft_isr->object; | |
549 | void *mem; | |
550 | ||
551 | tasklet_kill(&pdpc->divas_task); | |
552 | flush_scheduled_work(); | |
553 | mem = psoft_isr->object; | |
554 | psoft_isr->object = NULL; | |
555 | diva_os_free(0, mem); | |
556 | } | |
557 | } | |
558 | ||
559 | /* | |
560 | * kernel/user space copy functions | |
561 | */ | |
562 | static int | |
563 | xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length) | |
564 | { | |
565 | if (copy_to_user(dst, src, length)) { | |
566 | return (-EFAULT); | |
567 | } | |
568 | return (length); | |
569 | } | |
570 | ||
571 | static int | |
572 | xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length) | |
573 | { | |
574 | if (copy_from_user(dst, src, length)) { | |
575 | return (-EFAULT); | |
576 | } | |
577 | return (length); | |
578 | } | |
579 | ||
580 | /* | |
581 | * device node operations | |
582 | */ | |
583 | static int divas_open(struct inode *inode, struct file *file) | |
584 | { | |
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 | ||
666 | static struct file_operations divas_fops = { | |
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 | |
811 | remove_divas_proc(); | |
812 | divas_unregister_chrdev(); | |
813 | divasfunc_exit(); | |
814 | #endif | |
815 | printk(KERN_ERR "%s: failed to create proc entry.\n", | |
816 | DRIVERLNAME); | |
817 | ret = -EIO; | |
818 | goto out; | |
819 | } | |
820 | ||
821 | if ((ret = pci_register_driver(&diva_pci_driver))) { | |
822 | #ifdef MODULE | |
823 | remove_divas_proc(); | |
824 | divas_unregister_chrdev(); | |
825 | divasfunc_exit(); | |
826 | #endif | |
827 | printk(KERN_ERR "%s: failed to init pci driver.\n", | |
828 | DRIVERLNAME); | |
829 | goto out; | |
830 | } | |
831 | printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major); | |
832 | ||
833 | out: | |
834 | return (ret); | |
835 | } | |
836 | ||
837 | /* -------------------------------------------------------------------------- | |
838 | Driver Unload | |
839 | -------------------------------------------------------------------------- */ | |
840 | static void DIVA_EXIT_FUNCTION divas_exit(void) | |
841 | { | |
842 | pci_unregister_driver(&diva_pci_driver); | |
843 | remove_divas_proc(); | |
844 | divas_unregister_chrdev(); | |
845 | divasfunc_exit(); | |
846 | ||
847 | printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME); | |
848 | } | |
849 | ||
850 | module_init(divas_init); | |
851 | module_exit(divas_exit); |