Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card | |
3 | * | |
4 | * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@t-online.de> | |
5 | * | |
6 | * large parts based on the bttv driver | |
7 | * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) | |
8 | * & Marcus Metzler (mocm@thp.uni-koeln.de) | |
9 | * (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version 2 | |
14 | * of the License, or (at your option) any later version. | |
15 | * | |
16 | ||
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | ||
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
26 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
27 | * | |
28 | */ | |
29 | ||
30 | #include <linux/module.h> | |
31 | #include <linux/moduleparam.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/pci.h> | |
34 | #include <asm/io.h> | |
35 | #include <linux/ioport.h> | |
36 | #include <asm/pgtable.h> | |
37 | #include <asm/page.h> | |
38 | #include <linux/types.h> | |
39 | #include <linux/interrupt.h> | |
40 | #include <linux/kmod.h> | |
41 | #include <linux/vmalloc.h> | |
42 | #include <linux/init.h> | |
43 | ||
44 | #include "dmxdev.h" | |
45 | #include "dvbdev.h" | |
46 | #include "bt878.h" | |
47 | #include "dst_priv.h" | |
48 | ||
49 | ||
50 | /**************************************/ | |
51 | /* Miscellaneous utility definitions */ | |
52 | /**************************************/ | |
53 | ||
54 | static unsigned int bt878_verbose = 1; | |
55 | static unsigned int bt878_debug; | |
56 | ||
57 | module_param_named(verbose, bt878_verbose, int, 0444); | |
58 | MODULE_PARM_DESC(verbose, | |
59 | "verbose startup messages, default is 1 (yes)"); | |
60 | module_param_named(debug, bt878_debug, int, 0644); | |
61 | MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); | |
62 | ||
63 | int bt878_num; | |
64 | struct bt878 bt878[BT878_MAX]; | |
65 | ||
66 | EXPORT_SYMBOL(bt878_debug); | |
67 | EXPORT_SYMBOL(bt878_verbose); | |
68 | EXPORT_SYMBOL(bt878_num); | |
69 | EXPORT_SYMBOL(bt878); | |
70 | ||
71 | #define btwrite(dat,adr) bmtwrite((dat), (bt->bt878_mem+(adr))) | |
72 | #define btread(adr) bmtread(bt->bt878_mem+(adr)) | |
73 | ||
74 | #define btand(dat,adr) btwrite((dat) & btread(adr), adr) | |
75 | #define btor(dat,adr) btwrite((dat) | btread(adr), adr) | |
76 | #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) | |
77 | ||
78 | #if defined(dprintk) | |
79 | #undef dprintk | |
80 | #endif | |
81 | #define dprintk if(bt878_debug) printk | |
82 | ||
83 | static void bt878_mem_free(struct bt878 *bt) | |
84 | { | |
85 | if (bt->buf_cpu) { | |
86 | pci_free_consistent(bt->dev, bt->buf_size, bt->buf_cpu, | |
87 | bt->buf_dma); | |
88 | bt->buf_cpu = NULL; | |
89 | } | |
90 | ||
91 | if (bt->risc_cpu) { | |
92 | pci_free_consistent(bt->dev, bt->risc_size, bt->risc_cpu, | |
93 | bt->risc_dma); | |
94 | bt->risc_cpu = NULL; | |
95 | } | |
96 | } | |
97 | ||
98 | static int bt878_mem_alloc(struct bt878 *bt) | |
99 | { | |
100 | if (!bt->buf_cpu) { | |
101 | bt->buf_size = 128 * 1024; | |
102 | ||
103 | bt->buf_cpu = | |
104 | pci_alloc_consistent(bt->dev, bt->buf_size, | |
105 | &bt->buf_dma); | |
106 | ||
107 | if (!bt->buf_cpu) | |
108 | return -ENOMEM; | |
109 | ||
110 | memset(bt->buf_cpu, 0, bt->buf_size); | |
111 | } | |
112 | ||
113 | if (!bt->risc_cpu) { | |
114 | bt->risc_size = PAGE_SIZE; | |
115 | bt->risc_cpu = | |
116 | pci_alloc_consistent(bt->dev, bt->risc_size, | |
117 | &bt->risc_dma); | |
118 | ||
119 | if (!bt->risc_cpu) { | |
120 | bt878_mem_free(bt); | |
121 | return -ENOMEM; | |
122 | } | |
123 | ||
124 | memset(bt->risc_cpu, 0, bt->risc_size); | |
125 | } | |
126 | ||
127 | return 0; | |
128 | } | |
129 | ||
130 | /* RISC instructions */ | |
131 | #define RISC_WRITE (0x01 << 28) | |
132 | #define RISC_JUMP (0x07 << 28) | |
133 | #define RISC_SYNC (0x08 << 28) | |
134 | ||
135 | /* RISC bits */ | |
136 | #define RISC_WR_SOL (1 << 27) | |
137 | #define RISC_WR_EOL (1 << 26) | |
138 | #define RISC_IRQ (1 << 24) | |
139 | #define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16)) | |
140 | #define RISC_SYNC_RESYNC (1 << 15) | |
141 | #define RISC_SYNC_FM1 0x06 | |
142 | #define RISC_SYNC_VRO 0x0C | |
143 | ||
144 | #define RISC_FLUSH() bt->risc_pos = 0 | |
145 | #define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr) | |
146 | ||
147 | static int bt878_make_risc(struct bt878 *bt) | |
148 | { | |
149 | bt->block_bytes = bt->buf_size >> 4; | |
150 | bt->block_count = 1 << 4; | |
151 | bt->line_bytes = bt->block_bytes; | |
152 | bt->line_count = bt->block_count; | |
153 | ||
154 | while (bt->line_bytes > 4095) { | |
155 | bt->line_bytes >>= 1; | |
156 | bt->line_count <<= 1; | |
157 | } | |
158 | ||
159 | if (bt->line_count > 255) { | |
160 | printk("bt878: buffer size error!\n"); | |
161 | return -EINVAL; | |
162 | } | |
163 | return 0; | |
164 | } | |
165 | ||
166 | ||
167 | static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin) | |
168 | { | |
169 | u32 buf_pos = 0; | |
170 | u32 line; | |
171 | ||
172 | RISC_FLUSH(); | |
173 | RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin); | |
174 | RISC_INSTR(0); | |
175 | ||
176 | dprintk("bt878: risc len lines %u, bytes per line %u\n", | |
177 | bt->line_count, bt->line_bytes); | |
178 | for (line = 0; line < bt->line_count; line++) { | |
179 | // At the beginning of every block we issue an IRQ with previous (finished) block number set | |
180 | if (!(buf_pos % bt->block_bytes)) | |
181 | RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | | |
182 | RISC_IRQ | | |
183 | RISC_STATUS(((buf_pos / | |
184 | bt->block_bytes) + | |
185 | (bt->block_count - | |
186 | 1)) % | |
187 | bt->block_count) | bt-> | |
188 | line_bytes); | |
189 | else | |
190 | RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL | | |
191 | bt->line_bytes); | |
192 | RISC_INSTR(bt->buf_dma + buf_pos); | |
193 | buf_pos += bt->line_bytes; | |
194 | } | |
195 | ||
196 | RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO); | |
197 | RISC_INSTR(0); | |
198 | ||
199 | RISC_INSTR(RISC_JUMP); | |
200 | RISC_INSTR(bt->risc_dma); | |
201 | ||
202 | btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN); | |
203 | } | |
204 | ||
205 | /*****************************/ | |
206 | /* Start/Stop grabbing funcs */ | |
207 | /*****************************/ | |
208 | ||
209 | void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin, | |
210 | u32 irq_err_ignore) | |
211 | { | |
212 | u32 int_mask; | |
213 | ||
214 | dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg); | |
215 | /* complete the writing of the risc dma program now we have | |
216 | * the card specifics | |
217 | */ | |
218 | bt878_risc_program(bt, op_sync_orin); | |
219 | controlreg &= ~0x1f; | |
220 | controlreg |= 0x1b; | |
221 | ||
222 | btwrite(cpu_to_le32(bt->risc_dma), BT878_ARISC_START); | |
223 | ||
224 | /* original int mask had : | |
225 | * 6 2 8 4 0 | |
226 | * 1111 1111 1000 0000 0000 | |
227 | * SCERR|OCERR|PABORT|RIPERR|FDSR|FTRGT|FBUS|RISCI | |
228 | * Hacked for DST to: | |
229 | * SCERR | OCERR | FDSR | FTRGT | FBUS | RISCI | |
230 | */ | |
231 | int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT | | |
232 | BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT | | |
233 | BT878_AFBUS | BT878_ARISCI; | |
234 | ||
235 | ||
236 | /* ignore pesky bits */ | |
237 | int_mask &= ~irq_err_ignore; | |
238 | ||
239 | btwrite(int_mask, BT878_AINT_MASK); | |
240 | btwrite(controlreg, BT878_AGPIO_DMA_CTL); | |
241 | } | |
242 | ||
243 | void bt878_stop(struct bt878 *bt) | |
244 | { | |
245 | u32 stat; | |
246 | int i = 0; | |
247 | ||
248 | dprintk("bt878 debug: bt878_stop\n"); | |
249 | ||
250 | btwrite(0, BT878_AINT_MASK); | |
251 | btand(~0x13, BT878_AGPIO_DMA_CTL); | |
252 | ||
253 | do { | |
254 | stat = btread(BT878_AINT_STAT); | |
255 | if (!(stat & BT878_ARISC_EN)) | |
256 | break; | |
257 | i++; | |
258 | } while (i < 500); | |
259 | ||
260 | dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n", | |
261 | bt->nr, i, stat); | |
262 | } | |
263 | ||
264 | EXPORT_SYMBOL(bt878_start); | |
265 | EXPORT_SYMBOL(bt878_stop); | |
266 | ||
267 | /*****************************/ | |
268 | /* Interrupt service routine */ | |
269 | /*****************************/ | |
270 | ||
271 | static irqreturn_t bt878_irq(int irq, void *dev_id, struct pt_regs *regs) | |
272 | { | |
273 | u32 stat, astat, mask; | |
274 | int count; | |
275 | struct bt878 *bt; | |
276 | ||
277 | bt = (struct bt878 *) dev_id; | |
278 | ||
279 | count = 0; | |
280 | while (1) { | |
281 | stat = btread(BT878_AINT_STAT); | |
282 | mask = btread(BT878_AINT_MASK); | |
283 | if (!(astat = (stat & mask))) | |
284 | return IRQ_NONE; /* this interrupt is not for me */ | |
285 | /* dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */ | |
286 | btwrite(astat, BT878_AINT_STAT); /* try to clear interupt condition */ | |
287 | ||
288 | ||
289 | if (astat & (BT878_ASCERR | BT878_AOCERR)) { | |
290 | if (bt878_verbose) { | |
291 | printk("bt878(%d): irq%s%s risc_pc=%08x\n", | |
292 | bt->nr, | |
293 | (astat & BT878_ASCERR) ? " SCERR" : | |
294 | "", | |
295 | (astat & BT878_AOCERR) ? " OCERR" : | |
296 | "", btread(BT878_ARISC_PC)); | |
297 | } | |
298 | } | |
299 | if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) { | |
300 | if (bt878_verbose) { | |
301 | printk | |
302 | ("bt878(%d): irq%s%s%s risc_pc=%08x\n", | |
303 | bt->nr, | |
304 | (astat & BT878_APABORT) ? " PABORT" : | |
305 | "", | |
306 | (astat & BT878_ARIPERR) ? " RIPERR" : | |
307 | "", | |
308 | (astat & BT878_APPERR) ? " PPERR" : | |
309 | "", btread(BT878_ARISC_PC)); | |
310 | } | |
311 | } | |
312 | if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) { | |
313 | if (bt878_verbose) { | |
314 | printk | |
315 | ("bt878(%d): irq%s%s%s risc_pc=%08x\n", | |
316 | bt->nr, | |
317 | (astat & BT878_AFDSR) ? " FDSR" : "", | |
318 | (astat & BT878_AFTRGT) ? " FTRGT" : | |
319 | "", | |
320 | (astat & BT878_AFBUS) ? " FBUS" : "", | |
321 | btread(BT878_ARISC_PC)); | |
322 | } | |
323 | } | |
324 | if (astat & BT878_ARISCI) { | |
325 | bt->finished_block = (stat & BT878_ARISCS) >> 28; | |
326 | tasklet_schedule(&bt->tasklet); | |
327 | break; | |
328 | } | |
329 | count++; | |
330 | if (count > 20) { | |
331 | btwrite(0, BT878_AINT_MASK); | |
332 | printk(KERN_ERR | |
333 | "bt878(%d): IRQ lockup, cleared int mask\n", | |
334 | bt->nr); | |
335 | break; | |
336 | } | |
337 | } | |
338 | return IRQ_HANDLED; | |
339 | } | |
340 | ||
341 | int | |
342 | bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp) | |
343 | { | |
344 | int retval; | |
345 | ||
346 | retval = 0; | |
347 | if (down_interruptible (&bt->gpio_lock)) | |
348 | return -ERESTARTSYS; | |
349 | /* special gpio signal */ | |
350 | switch (cmd) { | |
351 | case DST_IG_ENABLE: | |
352 | // dprintk("dvb_bt8xx: dst enable mask 0x%02x enb 0x%02x \n", mp->dstg.enb.mask, mp->dstg.enb.enable); | |
353 | retval = bttv_gpio_enable(bt->bttv_nr, | |
354 | mp->enb.mask, | |
355 | mp->enb.enable); | |
356 | break; | |
357 | case DST_IG_WRITE: | |
358 | // dprintk("dvb_bt8xx: dst write gpio mask 0x%02x out 0x%02x\n", mp->dstg.outp.mask, mp->dstg.outp.highvals); | |
359 | retval = bttv_write_gpio(bt->bttv_nr, | |
360 | mp->outp.mask, | |
361 | mp->outp.highvals); | |
362 | ||
363 | break; | |
364 | case DST_IG_READ: | |
365 | /* read */ | |
366 | retval = bttv_read_gpio(bt->bttv_nr, &mp->rd.value); | |
367 | // dprintk("dvb_bt8xx: dst read gpio 0x%02x\n", (unsigned)mp->dstg.rd.value); | |
368 | break; | |
369 | case DST_IG_TS: | |
370 | /* Set packet size */ | |
371 | bt->TS_Size = mp->psize; | |
372 | break; | |
373 | ||
374 | default: | |
375 | retval = -EINVAL; | |
376 | break; | |
377 | } | |
378 | up(&bt->gpio_lock); | |
379 | return retval; | |
380 | } | |
381 | ||
382 | EXPORT_SYMBOL(bt878_device_control); | |
383 | ||
384 | /***********************/ | |
385 | /* PCI device handling */ | |
386 | /***********************/ | |
387 | ||
388 | static int __devinit bt878_probe(struct pci_dev *dev, | |
389 | const struct pci_device_id *pci_id) | |
390 | { | |
391 | int result; | |
392 | unsigned char lat; | |
393 | struct bt878 *bt; | |
394 | #if defined(__powerpc__) | |
395 | unsigned int cmd; | |
396 | #endif | |
397 | ||
398 | printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n", | |
399 | bt878_num); | |
400 | if (pci_enable_device(dev)) | |
401 | return -EIO; | |
402 | ||
403 | bt = &bt878[bt878_num]; | |
404 | bt->dev = dev; | |
405 | bt->nr = bt878_num; | |
406 | bt->shutdown = 0; | |
407 | ||
408 | bt->id = dev->device; | |
409 | bt->irq = dev->irq; | |
410 | bt->bt878_adr = pci_resource_start(dev, 0); | |
411 | if (!request_mem_region(pci_resource_start(dev, 0), | |
412 | pci_resource_len(dev, 0), "bt878")) { | |
413 | result = -EBUSY; | |
414 | goto fail0; | |
415 | } | |
416 | ||
417 | pci_read_config_byte(dev, PCI_CLASS_REVISION, &bt->revision); | |
418 | pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); | |
419 | printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ", | |
420 | bt878_num, bt->id, bt->revision, dev->bus->number, | |
421 | PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); | |
422 | printk("irq: %d, latency: %d, memory: 0x%lx\n", | |
423 | bt->irq, lat, bt->bt878_adr); | |
424 | ||
425 | ||
426 | #if defined(__powerpc__) | |
427 | /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ | |
428 | /* response on cards with no firmware is not enabled by OF */ | |
429 | pci_read_config_dword(dev, PCI_COMMAND, &cmd); | |
430 | cmd = (cmd | PCI_COMMAND_MEMORY); | |
431 | pci_write_config_dword(dev, PCI_COMMAND, cmd); | |
432 | #endif | |
433 | ||
434 | #ifdef __sparc__ | |
435 | bt->bt878_mem = (unsigned char *) bt->bt878_adr; | |
436 | #else | |
437 | bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000); | |
438 | #endif | |
439 | ||
440 | /* clear interrupt mask */ | |
441 | btwrite(0, BT848_INT_MASK); | |
442 | ||
443 | result = request_irq(bt->irq, bt878_irq, | |
444 | SA_SHIRQ | SA_INTERRUPT, "bt878", | |
445 | (void *) bt); | |
446 | if (result == -EINVAL) { | |
447 | printk(KERN_ERR "bt878(%d): Bad irq number or handler\n", | |
448 | bt878_num); | |
449 | goto fail1; | |
450 | } | |
451 | if (result == -EBUSY) { | |
452 | printk(KERN_ERR | |
453 | "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n", | |
454 | bt878_num, bt->irq); | |
455 | goto fail1; | |
456 | } | |
457 | if (result < 0) | |
458 | goto fail1; | |
459 | ||
460 | pci_set_master(dev); | |
461 | pci_set_drvdata(dev, bt); | |
462 | ||
463 | /* if(init_bt878(btv) < 0) { | |
464 | bt878_remove(dev); | |
465 | return -EIO; | |
466 | } | |
467 | */ | |
468 | ||
469 | if ((result = bt878_mem_alloc(bt))) { | |
470 | printk("bt878: failed to allocate memory!\n"); | |
471 | goto fail2; | |
472 | } | |
473 | ||
474 | bt878_make_risc(bt); | |
475 | btwrite(0, BT878_AINT_MASK); | |
476 | bt878_num++; | |
477 | ||
478 | return 0; | |
479 | ||
480 | fail2: | |
481 | free_irq(bt->irq, bt); | |
482 | fail1: | |
483 | release_mem_region(pci_resource_start(bt->dev, 0), | |
484 | pci_resource_len(bt->dev, 0)); | |
485 | fail0: | |
486 | pci_disable_device(dev); | |
487 | return result; | |
488 | } | |
489 | ||
490 | static void __devexit bt878_remove(struct pci_dev *pci_dev) | |
491 | { | |
492 | u8 command; | |
493 | struct bt878 *bt = pci_get_drvdata(pci_dev); | |
494 | ||
495 | if (bt878_verbose) | |
496 | printk("bt878(%d): unloading\n", bt->nr); | |
497 | ||
498 | /* turn off all capturing, DMA and IRQs */ | |
499 | btand(~0x13, BT878_AGPIO_DMA_CTL); | |
500 | ||
501 | /* first disable interrupts before unmapping the memory! */ | |
502 | btwrite(0, BT878_AINT_MASK); | |
503 | btwrite(~0U, BT878_AINT_STAT); | |
504 | ||
505 | /* disable PCI bus-mastering */ | |
506 | pci_read_config_byte(bt->dev, PCI_COMMAND, &command); | |
507 | /* Should this be &=~ ?? */ | |
508 | command &= ~PCI_COMMAND_MASTER; | |
509 | pci_write_config_byte(bt->dev, PCI_COMMAND, command); | |
510 | ||
511 | free_irq(bt->irq, bt); | |
512 | printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem); | |
513 | if (bt->bt878_mem) | |
514 | iounmap(bt->bt878_mem); | |
515 | ||
516 | release_mem_region(pci_resource_start(bt->dev, 0), | |
517 | pci_resource_len(bt->dev, 0)); | |
518 | /* wake up any waiting processes | |
519 | because shutdown flag is set, no new processes (in this queue) | |
520 | are expected | |
521 | */ | |
522 | bt->shutdown = 1; | |
523 | bt878_mem_free(bt); | |
524 | ||
525 | pci_set_drvdata(pci_dev, NULL); | |
526 | pci_disable_device(pci_dev); | |
527 | return; | |
528 | } | |
529 | ||
530 | static struct pci_device_id bt878_pci_tbl[] __devinitdata = { | |
531 | {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BROOKTREE_878, | |
532 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
533 | {0,} | |
534 | }; | |
535 | ||
536 | MODULE_DEVICE_TABLE(pci, bt878_pci_tbl); | |
537 | ||
538 | static struct pci_driver bt878_pci_driver = { | |
539 | .name = "bt878", | |
540 | .id_table = bt878_pci_tbl, | |
541 | .probe = bt878_probe, | |
542 | .remove = bt878_remove, | |
543 | }; | |
544 | ||
545 | static int bt878_pci_driver_registered = 0; | |
546 | ||
547 | /*******************************/ | |
548 | /* Module management functions */ | |
549 | /*******************************/ | |
550 | ||
551 | static int bt878_init_module(void) | |
552 | { | |
553 | bt878_num = 0; | |
554 | bt878_pci_driver_registered = 0; | |
555 | ||
556 | printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n", | |
557 | (BT878_VERSION_CODE >> 16) & 0xff, | |
558 | (BT878_VERSION_CODE >> 8) & 0xff, | |
559 | BT878_VERSION_CODE & 0xff); | |
560 | /* | |
561 | bt878_check_chipset(); | |
562 | */ | |
563 | /* later we register inside of bt878_find_audio_dma() | |
564 | * because we may want to ignore certain cards */ | |
565 | bt878_pci_driver_registered = 1; | |
566 | return pci_register_driver(&bt878_pci_driver); | |
567 | } | |
568 | ||
569 | static void bt878_cleanup_module(void) | |
570 | { | |
571 | if (bt878_pci_driver_registered) { | |
572 | bt878_pci_driver_registered = 0; | |
573 | pci_unregister_driver(&bt878_pci_driver); | |
574 | } | |
575 | return; | |
576 | } | |
577 | ||
578 | module_init(bt878_init_module); | |
579 | module_exit(bt878_cleanup_module); | |
580 | ||
581 | //MODULE_AUTHOR("XXX"); | |
582 | MODULE_LICENSE("GPL"); | |
583 | ||
584 | /* | |
585 | * Local variables: | |
586 | * c-basic-offset: 8 | |
587 | * End: | |
588 | */ |