This source file includes following definitions.
- bt878_mem_free
- bt878_mem_alloc
- bt878_make_risc
- bt878_risc_program
- bt878_start
- bt878_stop
- bt878_irq
- bt878_device_control
- card_name
- bt878_probe
- bt878_remove
- bt878_init_module
- bt878_cleanup_module
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13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/pci.h>
16 #include <asm/io.h>
17 #include <linux/ioport.h>
18 #include <asm/pgtable.h>
19 #include <asm/page.h>
20 #include <linux/types.h>
21 #include <linux/interrupt.h>
22 #include <linux/kmod.h>
23 #include <linux/vmalloc.h>
24 #include <linux/init.h>
25
26 #include <media/dmxdev.h>
27 #include <media/dvbdev.h>
28 #include "bt878.h"
29 #include "dst_priv.h"
30
31
32
33
34
35
36 static unsigned int bt878_verbose = 1;
37 static unsigned int bt878_debug;
38
39 module_param_named(verbose, bt878_verbose, int, 0444);
40 MODULE_PARM_DESC(verbose,
41 "verbose startup messages, default is 1 (yes)");
42 module_param_named(debug, bt878_debug, int, 0644);
43 MODULE_PARM_DESC(debug, "Turn on/off debugging, default is 0 (off).");
44
45 int bt878_num;
46 struct bt878 bt878[BT878_MAX];
47
48 EXPORT_SYMBOL(bt878_num);
49 EXPORT_SYMBOL(bt878);
50
51 #define btwrite(dat,adr) bmtwrite((dat), (bt->bt878_mem+(adr)))
52 #define btread(adr) bmtread(bt->bt878_mem+(adr))
53
54 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
55 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
56 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
57
58 #if defined(dprintk)
59 #undef dprintk
60 #endif
61 #define dprintk(fmt, arg...) \
62 do { \
63 if (bt878_debug) \
64 printk(KERN_DEBUG fmt, ##arg); \
65 } while (0)
66
67 static void bt878_mem_free(struct bt878 *bt)
68 {
69 if (bt->buf_cpu) {
70 pci_free_consistent(bt->dev, bt->buf_size, bt->buf_cpu,
71 bt->buf_dma);
72 bt->buf_cpu = NULL;
73 }
74
75 if (bt->risc_cpu) {
76 pci_free_consistent(bt->dev, bt->risc_size, bt->risc_cpu,
77 bt->risc_dma);
78 bt->risc_cpu = NULL;
79 }
80 }
81
82 static int bt878_mem_alloc(struct bt878 *bt)
83 {
84 if (!bt->buf_cpu) {
85 bt->buf_size = 128 * 1024;
86
87 bt->buf_cpu = pci_zalloc_consistent(bt->dev, bt->buf_size,
88 &bt->buf_dma);
89 if (!bt->buf_cpu)
90 return -ENOMEM;
91 }
92
93 if (!bt->risc_cpu) {
94 bt->risc_size = PAGE_SIZE;
95 bt->risc_cpu = pci_zalloc_consistent(bt->dev, bt->risc_size,
96 &bt->risc_dma);
97 if (!bt->risc_cpu) {
98 bt878_mem_free(bt);
99 return -ENOMEM;
100 }
101 }
102
103 return 0;
104 }
105
106
107 #define RISC_WRITE (0x01 << 28)
108 #define RISC_JUMP (0x07 << 28)
109 #define RISC_SYNC (0x08 << 28)
110
111
112 #define RISC_WR_SOL (1 << 27)
113 #define RISC_WR_EOL (1 << 26)
114 #define RISC_IRQ (1 << 24)
115 #define RISC_STATUS(status) ((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16))
116 #define RISC_SYNC_RESYNC (1 << 15)
117 #define RISC_SYNC_FM1 0x06
118 #define RISC_SYNC_VRO 0x0C
119
120 #define RISC_FLUSH() bt->risc_pos = 0
121 #define RISC_INSTR(instr) bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr)
122
123 static int bt878_make_risc(struct bt878 *bt)
124 {
125 bt->block_bytes = bt->buf_size >> 4;
126 bt->block_count = 1 << 4;
127 bt->line_bytes = bt->block_bytes;
128 bt->line_count = bt->block_count;
129
130 while (bt->line_bytes > 4095) {
131 bt->line_bytes >>= 1;
132 bt->line_count <<= 1;
133 }
134
135 if (bt->line_count > 255) {
136 printk(KERN_ERR "bt878: buffer size error!\n");
137 return -EINVAL;
138 }
139 return 0;
140 }
141
142
143 static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin)
144 {
145 u32 buf_pos = 0;
146 u32 line;
147
148 RISC_FLUSH();
149 RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin);
150 RISC_INSTR(0);
151
152 dprintk("bt878: risc len lines %u, bytes per line %u\n",
153 bt->line_count, bt->line_bytes);
154 for (line = 0; line < bt->line_count; line++) {
155
156 if (!(buf_pos % bt->block_bytes))
157 RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL |
158 RISC_IRQ |
159 RISC_STATUS(((buf_pos /
160 bt->block_bytes) +
161 (bt->block_count -
162 1)) %
163 bt->block_count) | bt->
164 line_bytes);
165 else
166 RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL |
167 bt->line_bytes);
168 RISC_INSTR(bt->buf_dma + buf_pos);
169 buf_pos += bt->line_bytes;
170 }
171
172 RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO);
173 RISC_INSTR(0);
174
175 RISC_INSTR(RISC_JUMP);
176 RISC_INSTR(bt->risc_dma);
177
178 btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN);
179 }
180
181
182
183
184
185 void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin,
186 u32 irq_err_ignore)
187 {
188 u32 int_mask;
189
190 dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg);
191
192
193
194 bt878_risc_program(bt, op_sync_orin);
195 controlreg &= ~0x1f;
196 controlreg |= 0x1b;
197
198 btwrite(bt->risc_dma, BT878_ARISC_START);
199
200
201
202
203
204
205
206
207 int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT |
208 BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT |
209 BT878_AFBUS | BT878_ARISCI;
210
211
212
213 int_mask &= ~irq_err_ignore;
214
215 btwrite(int_mask, BT878_AINT_MASK);
216 btwrite(controlreg, BT878_AGPIO_DMA_CTL);
217 }
218
219 void bt878_stop(struct bt878 *bt)
220 {
221 u32 stat;
222 int i = 0;
223
224 dprintk("bt878 debug: bt878_stop\n");
225
226 btwrite(0, BT878_AINT_MASK);
227 btand(~0x13, BT878_AGPIO_DMA_CTL);
228
229 do {
230 stat = btread(BT878_AINT_STAT);
231 if (!(stat & BT878_ARISC_EN))
232 break;
233 i++;
234 } while (i < 500);
235
236 dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n",
237 bt->nr, i, stat);
238 }
239
240 EXPORT_SYMBOL(bt878_start);
241 EXPORT_SYMBOL(bt878_stop);
242
243
244
245
246
247 static irqreturn_t bt878_irq(int irq, void *dev_id)
248 {
249 u32 stat, astat, mask;
250 int count;
251 struct bt878 *bt;
252
253 bt = (struct bt878 *) dev_id;
254
255 count = 0;
256 while (1) {
257 stat = btread(BT878_AINT_STAT);
258 mask = btread(BT878_AINT_MASK);
259 if (!(astat = (stat & mask)))
260 return IRQ_NONE;
261
262 btwrite(astat, BT878_AINT_STAT);
263
264
265 if (astat & (BT878_ASCERR | BT878_AOCERR)) {
266 if (bt878_verbose) {
267 printk(KERN_INFO
268 "bt878(%d): irq%s%s risc_pc=%08x\n",
269 bt->nr,
270 (astat & BT878_ASCERR) ? " SCERR" :
271 "",
272 (astat & BT878_AOCERR) ? " OCERR" :
273 "", btread(BT878_ARISC_PC));
274 }
275 }
276 if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) {
277 if (bt878_verbose) {
278 printk(KERN_INFO
279 "bt878(%d): irq%s%s%s risc_pc=%08x\n",
280 bt->nr,
281 (astat & BT878_APABORT) ? " PABORT" :
282 "",
283 (astat & BT878_ARIPERR) ? " RIPERR" :
284 "",
285 (astat & BT878_APPERR) ? " PPERR" :
286 "", btread(BT878_ARISC_PC));
287 }
288 }
289 if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) {
290 if (bt878_verbose) {
291 printk(KERN_INFO
292 "bt878(%d): irq%s%s%s risc_pc=%08x\n",
293 bt->nr,
294 (astat & BT878_AFDSR) ? " FDSR" : "",
295 (astat & BT878_AFTRGT) ? " FTRGT" :
296 "",
297 (astat & BT878_AFBUS) ? " FBUS" : "",
298 btread(BT878_ARISC_PC));
299 }
300 }
301 if (astat & BT878_ARISCI) {
302 bt->finished_block = (stat & BT878_ARISCS) >> 28;
303 tasklet_schedule(&bt->tasklet);
304 break;
305 }
306 count++;
307 if (count > 20) {
308 btwrite(0, BT878_AINT_MASK);
309 printk(KERN_ERR
310 "bt878(%d): IRQ lockup, cleared int mask\n",
311 bt->nr);
312 break;
313 }
314 }
315 return IRQ_HANDLED;
316 }
317
318 int
319 bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp)
320 {
321 int retval;
322
323 retval = 0;
324 if (mutex_lock_interruptible(&bt->gpio_lock))
325 return -ERESTARTSYS;
326
327 switch (cmd) {
328 case DST_IG_ENABLE:
329
330 retval = bttv_gpio_enable(bt->bttv_nr,
331 mp->enb.mask,
332 mp->enb.enable);
333 break;
334 case DST_IG_WRITE:
335
336 retval = bttv_write_gpio(bt->bttv_nr,
337 mp->outp.mask,
338 mp->outp.highvals);
339
340 break;
341 case DST_IG_READ:
342
343 retval = bttv_read_gpio(bt->bttv_nr, &mp->rd.value);
344
345 break;
346 case DST_IG_TS:
347
348 bt->TS_Size = mp->psize;
349 break;
350
351 default:
352 retval = -EINVAL;
353 break;
354 }
355 mutex_unlock(&bt->gpio_lock);
356 return retval;
357 }
358
359 EXPORT_SYMBOL(bt878_device_control);
360
361 #define BROOKTREE_878_DEVICE(vend, dev, name) \
362 { \
363 .vendor = PCI_VENDOR_ID_BROOKTREE, \
364 .device = PCI_DEVICE_ID_BROOKTREE_878, \
365 .subvendor = (vend), .subdevice = (dev), \
366 .driver_data = (unsigned long) name \
367 }
368
369 static const struct pci_device_id bt878_pci_tbl[] = {
370 BROOKTREE_878_DEVICE(0x0071, 0x0101, "Nebula Electronics DigiTV"),
371 BROOKTREE_878_DEVICE(0x1461, 0x0761, "AverMedia AverTV DVB-T 761"),
372 BROOKTREE_878_DEVICE(0x11bd, 0x001c, "Pinnacle PCTV Sat"),
373 BROOKTREE_878_DEVICE(0x11bd, 0x0026, "Pinnacle PCTV SAT CI"),
374 BROOKTREE_878_DEVICE(0x1822, 0x0001, "Twinhan VisionPlus DVB"),
375 BROOKTREE_878_DEVICE(0x270f, 0xfc00,
376 "ChainTech digitop DST-1000 DVB-S"),
377 BROOKTREE_878_DEVICE(0x1461, 0x0771, "AVermedia AverTV DVB-T 771"),
378 BROOKTREE_878_DEVICE(0x18ac, 0xdb10, "DViCO FusionHDTV DVB-T Lite"),
379 BROOKTREE_878_DEVICE(0x18ac, 0xdb11, "Ultraview DVB-T Lite"),
380 BROOKTREE_878_DEVICE(0x18ac, 0xd500, "DViCO FusionHDTV 5 Lite"),
381 BROOKTREE_878_DEVICE(0x7063, 0x2000, "pcHDTV HD-2000 TV"),
382 BROOKTREE_878_DEVICE(0x1822, 0x0026, "DNTV Live! Mini"),
383 { }
384 };
385
386 MODULE_DEVICE_TABLE(pci, bt878_pci_tbl);
387
388 static const char * card_name(const struct pci_device_id *id)
389 {
390 return id->driver_data ? (const char *)id->driver_data : "Unknown";
391 }
392
393
394
395
396
397 static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
398 {
399 int result = 0;
400 unsigned char lat;
401 struct bt878 *bt;
402 unsigned int cardid;
403
404 printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n",
405 bt878_num);
406 if (bt878_num >= BT878_MAX) {
407 printk(KERN_ERR "bt878: Too many devices inserted\n");
408 return -ENOMEM;
409 }
410 if (pci_enable_device(dev))
411 return -EIO;
412
413 cardid = dev->subsystem_device << 16;
414 cardid |= dev->subsystem_vendor;
415
416 printk(KERN_INFO "%s: card id=[0x%x],[ %s ] has DVB functions.\n",
417 __func__, cardid, card_name(pci_id));
418
419 bt = &bt878[bt878_num];
420 bt->dev = dev;
421 bt->nr = bt878_num;
422 bt->shutdown = 0;
423
424 bt->id = dev->device;
425 bt->irq = dev->irq;
426 bt->bt878_adr = pci_resource_start(dev, 0);
427 if (!request_mem_region(pci_resource_start(dev, 0),
428 pci_resource_len(dev, 0), "bt878")) {
429 result = -EBUSY;
430 goto fail0;
431 }
432
433 bt->revision = dev->revision;
434 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
435
436
437 printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ",
438 bt878_num, bt->id, bt->revision, dev->bus->number,
439 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
440 printk("irq: %d, latency: %d, memory: 0x%lx\n",
441 bt->irq, lat, bt->bt878_adr);
442
443 #ifdef __sparc__
444 bt->bt878_mem = (unsigned char *) bt->bt878_adr;
445 #else
446 bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000);
447 #endif
448
449
450 btwrite(0, BT848_INT_MASK);
451
452 result = request_irq(bt->irq, bt878_irq,
453 IRQF_SHARED, "bt878", (void *) bt);
454 if (result == -EINVAL) {
455 printk(KERN_ERR "bt878(%d): Bad irq number or handler\n",
456 bt878_num);
457 goto fail1;
458 }
459 if (result == -EBUSY) {
460 printk(KERN_ERR
461 "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n",
462 bt878_num, bt->irq);
463 goto fail1;
464 }
465 if (result < 0)
466 goto fail1;
467
468 pci_set_master(dev);
469 pci_set_drvdata(dev, bt);
470
471 if ((result = bt878_mem_alloc(bt))) {
472 printk(KERN_ERR "bt878: failed to allocate memory!\n");
473 goto fail2;
474 }
475
476 bt878_make_risc(bt);
477 btwrite(0, BT878_AINT_MASK);
478 bt878_num++;
479
480 return 0;
481
482 fail2:
483 free_irq(bt->irq, bt);
484 fail1:
485 release_mem_region(pci_resource_start(bt->dev, 0),
486 pci_resource_len(bt->dev, 0));
487 fail0:
488 pci_disable_device(dev);
489 return result;
490 }
491
492 static void bt878_remove(struct pci_dev *pci_dev)
493 {
494 u8 command;
495 struct bt878 *bt = pci_get_drvdata(pci_dev);
496
497 if (bt878_verbose)
498 printk(KERN_INFO "bt878(%d): unloading\n", bt->nr);
499
500
501 btand(~0x13, BT878_AGPIO_DMA_CTL);
502
503
504 btwrite(0, BT878_AINT_MASK);
505 btwrite(~0U, BT878_AINT_STAT);
506
507
508 pci_read_config_byte(bt->dev, PCI_COMMAND, &command);
509
510 command &= ~PCI_COMMAND_MASTER;
511 pci_write_config_byte(bt->dev, PCI_COMMAND, command);
512
513 free_irq(bt->irq, bt);
514 printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem);
515 if (bt->bt878_mem)
516 iounmap(bt->bt878_mem);
517
518 release_mem_region(pci_resource_start(bt->dev, 0),
519 pci_resource_len(bt->dev, 0));
520
521
522
523
524 bt->shutdown = 1;
525 bt878_mem_free(bt);
526
527 pci_disable_device(pci_dev);
528 return;
529 }
530
531 static struct pci_driver bt878_pci_driver = {
532 .name = "bt878",
533 .id_table = bt878_pci_tbl,
534 .probe = bt878_probe,
535 .remove = bt878_remove,
536 };
537
538
539
540
541
542 static int __init bt878_init_module(void)
543 {
544 bt878_num = 0;
545
546 printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n",
547 (BT878_VERSION_CODE >> 16) & 0xff,
548 (BT878_VERSION_CODE >> 8) & 0xff,
549 BT878_VERSION_CODE & 0xff);
550
551 return pci_register_driver(&bt878_pci_driver);
552 }
553
554 static void __exit bt878_cleanup_module(void)
555 {
556 pci_unregister_driver(&bt878_pci_driver);
557 }
558
559 module_init(bt878_init_module);
560 module_exit(bt878_cleanup_module);
561
562 MODULE_LICENSE("GPL");