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Linux 3.12.39
[linux/fpc-iii.git] / drivers / media / pci / cx23885 / cx23885-core.c
blob9f63d93239ec9d279f1de77952e6459ee40389fc
1 /*
2 * Driver for the Conexant CX23885 PCIe bridge
3 *
4 * Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 *
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include <linux/init.h>
23 #include <linux/list.h>
24 #include <linux/module.h>
25 #include <linux/moduleparam.h>
26 #include <linux/kmod.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/interrupt.h>
30 #include <linux/delay.h>
31 #include <asm/div64.h>
32 #include <linux/firmware.h>
33
34 #include "cx23885.h"
35 #include "cimax2.h"
36 #include "altera-ci.h"
37 #include "cx23888-ir.h"
38 #include "cx23885-ir.h"
39 #include "cx23885-av.h"
40 #include "cx23885-input.h"
41
42 MODULE_DESCRIPTION("Driver for cx23885 based TV cards");
43 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
44 MODULE_LICENSE("GPL");
45 MODULE_VERSION(CX23885_VERSION);
46
47 static unsigned int debug;
48 module_param(debug, int, 0644);
49 MODULE_PARM_DESC(debug, "enable debug messages");
50
51 static unsigned int card[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
52 module_param_array(card, int, NULL, 0444);
53 MODULE_PARM_DESC(card, "card type");
54
55 #define dprintk(level, fmt, arg...)\
56 do { if (debug >= level)\
57 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
58 } while (0)
59
60 static unsigned int cx23885_devcount;
61
62 #define NO_SYNC_LINE (-1U)
63
64 /* FIXME, these allocations will change when
65 * analog arrives. The be reviewed.
66 * CX23887 Assumptions
67 * 1 line = 16 bytes of CDT
68 * cmds size = 80
69 * cdt size = 16 * linesize
70 * iqsize = 64
71 * maxlines = 6
72 *
73 * Address Space:
74 * 0x00000000 0x00008fff FIFO clusters
75 * 0x00010000 0x000104af Channel Management Data Structures
76 * 0x000104b0 0x000104ff Free
77 * 0x00010500 0x000108bf 15 channels * iqsize
78 * 0x000108c0 0x000108ff Free
79 * 0x00010900 0x00010e9f IQ's + Cluster Descriptor Tables
80 * 15 channels * (iqsize + (maxlines * linesize))
81 * 0x00010ea0 0x00010xxx Free
82 */
83
84 static struct sram_channel cx23885_sram_channels[] = {
85 [SRAM_CH01] = {
86 .name = "VID A",
87 .cmds_start = 0x10000,
88 .ctrl_start = 0x10380,
89 .cdt = 0x104c0,
90 .fifo_start = 0x40,
91 .fifo_size = 0x2800,
92 .ptr1_reg = DMA1_PTR1,
93 .ptr2_reg = DMA1_PTR2,
94 .cnt1_reg = DMA1_CNT1,
95 .cnt2_reg = DMA1_CNT2,
96 },
97 [SRAM_CH02] = {
98 .name = "ch2",
99 .cmds_start = 0x0,
100 .ctrl_start = 0x0,
101 .cdt = 0x0,
102 .fifo_start = 0x0,
103 .fifo_size = 0x0,
104 .ptr1_reg = DMA2_PTR1,
105 .ptr2_reg = DMA2_PTR2,
106 .cnt1_reg = DMA2_CNT1,
107 .cnt2_reg = DMA2_CNT2,
108 },
109 [SRAM_CH03] = {
110 .name = "TS1 B",
111 .cmds_start = 0x100A0,
112 .ctrl_start = 0x10400,
113 .cdt = 0x10580,
114 .fifo_start = 0x5000,
115 .fifo_size = 0x1000,
116 .ptr1_reg = DMA3_PTR1,
117 .ptr2_reg = DMA3_PTR2,
118 .cnt1_reg = DMA3_CNT1,
119 .cnt2_reg = DMA3_CNT2,
120 },
121 [SRAM_CH04] = {
122 .name = "ch4",
123 .cmds_start = 0x0,
124 .ctrl_start = 0x0,
125 .cdt = 0x0,
126 .fifo_start = 0x0,
127 .fifo_size = 0x0,
128 .ptr1_reg = DMA4_PTR1,
129 .ptr2_reg = DMA4_PTR2,
130 .cnt1_reg = DMA4_CNT1,
131 .cnt2_reg = DMA4_CNT2,
132 },
133 [SRAM_CH05] = {
134 .name = "ch5",
135 .cmds_start = 0x0,
136 .ctrl_start = 0x0,
137 .cdt = 0x0,
138 .fifo_start = 0x0,
139 .fifo_size = 0x0,
140 .ptr1_reg = DMA5_PTR1,
141 .ptr2_reg = DMA5_PTR2,
142 .cnt1_reg = DMA5_CNT1,
143 .cnt2_reg = DMA5_CNT2,
144 },
145 [SRAM_CH06] = {
146 .name = "TS2 C",
147 .cmds_start = 0x10140,
148 .ctrl_start = 0x10440,
149 .cdt = 0x105e0,
150 .fifo_start = 0x6000,
151 .fifo_size = 0x1000,
152 .ptr1_reg = DMA5_PTR1,
153 .ptr2_reg = DMA5_PTR2,
154 .cnt1_reg = DMA5_CNT1,
155 .cnt2_reg = DMA5_CNT2,
156 },
157 [SRAM_CH07] = {
158 .name = "TV Audio",
159 .cmds_start = 0x10190,
160 .ctrl_start = 0x10480,
161 .cdt = 0x10a00,
162 .fifo_start = 0x7000,
163 .fifo_size = 0x1000,
164 .ptr1_reg = DMA6_PTR1,
165 .ptr2_reg = DMA6_PTR2,
166 .cnt1_reg = DMA6_CNT1,
167 .cnt2_reg = DMA6_CNT2,
168 },
169 [SRAM_CH08] = {
170 .name = "ch8",
171 .cmds_start = 0x0,
172 .ctrl_start = 0x0,
173 .cdt = 0x0,
174 .fifo_start = 0x0,
175 .fifo_size = 0x0,
176 .ptr1_reg = DMA7_PTR1,
177 .ptr2_reg = DMA7_PTR2,
178 .cnt1_reg = DMA7_CNT1,
179 .cnt2_reg = DMA7_CNT2,
180 },
181 [SRAM_CH09] = {
182 .name = "ch9",
183 .cmds_start = 0x0,
184 .ctrl_start = 0x0,
185 .cdt = 0x0,
186 .fifo_start = 0x0,
187 .fifo_size = 0x0,
188 .ptr1_reg = DMA8_PTR1,
189 .ptr2_reg = DMA8_PTR2,
190 .cnt1_reg = DMA8_CNT1,
191 .cnt2_reg = DMA8_CNT2,
192 },
193 };
194
195 static struct sram_channel cx23887_sram_channels[] = {
196 [SRAM_CH01] = {
197 .name = "VID A",
198 .cmds_start = 0x10000,
199 .ctrl_start = 0x105b0,
200 .cdt = 0x107b0,
201 .fifo_start = 0x40,
202 .fifo_size = 0x2800,
203 .ptr1_reg = DMA1_PTR1,
204 .ptr2_reg = DMA1_PTR2,
205 .cnt1_reg = DMA1_CNT1,
206 .cnt2_reg = DMA1_CNT2,
207 },
208 [SRAM_CH02] = {
209 .name = "VID A (VBI)",
210 .cmds_start = 0x10050,
211 .ctrl_start = 0x105F0,
212 .cdt = 0x10810,
213 .fifo_start = 0x3000,
214 .fifo_size = 0x1000,
215 .ptr1_reg = DMA2_PTR1,
216 .ptr2_reg = DMA2_PTR2,
217 .cnt1_reg = DMA2_CNT1,
218 .cnt2_reg = DMA2_CNT2,
219 },
220 [SRAM_CH03] = {
221 .name = "TS1 B",
222 .cmds_start = 0x100A0,
223 .ctrl_start = 0x10630,
224 .cdt = 0x10870,
225 .fifo_start = 0x5000,
226 .fifo_size = 0x1000,
227 .ptr1_reg = DMA3_PTR1,
228 .ptr2_reg = DMA3_PTR2,
229 .cnt1_reg = DMA3_CNT1,
230 .cnt2_reg = DMA3_CNT2,
231 },
232 [SRAM_CH04] = {
233 .name = "ch4",
234 .cmds_start = 0x0,
235 .ctrl_start = 0x0,
236 .cdt = 0x0,
237 .fifo_start = 0x0,
238 .fifo_size = 0x0,
239 .ptr1_reg = DMA4_PTR1,
240 .ptr2_reg = DMA4_PTR2,
241 .cnt1_reg = DMA4_CNT1,
242 .cnt2_reg = DMA4_CNT2,
243 },
244 [SRAM_CH05] = {
245 .name = "ch5",
246 .cmds_start = 0x0,
247 .ctrl_start = 0x0,
248 .cdt = 0x0,
249 .fifo_start = 0x0,
250 .fifo_size = 0x0,
251 .ptr1_reg = DMA5_PTR1,
252 .ptr2_reg = DMA5_PTR2,
253 .cnt1_reg = DMA5_CNT1,
254 .cnt2_reg = DMA5_CNT2,
255 },
256 [SRAM_CH06] = {
257 .name = "TS2 C",
258 .cmds_start = 0x10140,
259 .ctrl_start = 0x10670,
260 .cdt = 0x108d0,
261 .fifo_start = 0x6000,
262 .fifo_size = 0x1000,
263 .ptr1_reg = DMA5_PTR1,
264 .ptr2_reg = DMA5_PTR2,
265 .cnt1_reg = DMA5_CNT1,
266 .cnt2_reg = DMA5_CNT2,
267 },
268 [SRAM_CH07] = {
269 .name = "TV Audio",
270 .cmds_start = 0x10190,
271 .ctrl_start = 0x106B0,
272 .cdt = 0x10930,
273 .fifo_start = 0x7000,
274 .fifo_size = 0x1000,
275 .ptr1_reg = DMA6_PTR1,
276 .ptr2_reg = DMA6_PTR2,
277 .cnt1_reg = DMA6_CNT1,
278 .cnt2_reg = DMA6_CNT2,
279 },
280 [SRAM_CH08] = {
281 .name = "ch8",
282 .cmds_start = 0x0,
283 .ctrl_start = 0x0,
284 .cdt = 0x0,
285 .fifo_start = 0x0,
286 .fifo_size = 0x0,
287 .ptr1_reg = DMA7_PTR1,
288 .ptr2_reg = DMA7_PTR2,
289 .cnt1_reg = DMA7_CNT1,
290 .cnt2_reg = DMA7_CNT2,
291 },
292 [SRAM_CH09] = {
293 .name = "ch9",
294 .cmds_start = 0x0,
295 .ctrl_start = 0x0,
296 .cdt = 0x0,
297 .fifo_start = 0x0,
298 .fifo_size = 0x0,
299 .ptr1_reg = DMA8_PTR1,
300 .ptr2_reg = DMA8_PTR2,
301 .cnt1_reg = DMA8_CNT1,
302 .cnt2_reg = DMA8_CNT2,
303 },
304 };
305
306 static void cx23885_irq_add(struct cx23885_dev *dev, u32 mask)
307 {
308 unsigned long flags;
309 spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
310
311 dev->pci_irqmask |= mask;
312
313 spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
314 }
315
316 void cx23885_irq_add_enable(struct cx23885_dev *dev, u32 mask)
317 {
318 unsigned long flags;
319 spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
320
321 dev->pci_irqmask |= mask;
322 cx_set(PCI_INT_MSK, mask);
323
324 spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
325 }
326
327 void cx23885_irq_enable(struct cx23885_dev *dev, u32 mask)
328 {
329 u32 v;
330 unsigned long flags;
331 spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
332
333 v = mask & dev->pci_irqmask;
334 if (v)
335 cx_set(PCI_INT_MSK, v);
336
337 spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
338 }
339
340 static inline void cx23885_irq_enable_all(struct cx23885_dev *dev)
341 {
342 cx23885_irq_enable(dev, 0xffffffff);
343 }
344
345 void cx23885_irq_disable(struct cx23885_dev *dev, u32 mask)
346 {
347 unsigned long flags;
348 spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
349
350 cx_clear(PCI_INT_MSK, mask);
351
352 spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
353 }
354
355 static inline void cx23885_irq_disable_all(struct cx23885_dev *dev)
356 {
357 cx23885_irq_disable(dev, 0xffffffff);
358 }
359
360 void cx23885_irq_remove(struct cx23885_dev *dev, u32 mask)
361 {
362 unsigned long flags;
363 spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
364
365 dev->pci_irqmask &= ~mask;
366 cx_clear(PCI_INT_MSK, mask);
367
368 spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
369 }
370
371 static u32 cx23885_irq_get_mask(struct cx23885_dev *dev)
372 {
373 u32 v;
374 unsigned long flags;
375 spin_lock_irqsave(&dev->pci_irqmask_lock, flags);
376
377 v = cx_read(PCI_INT_MSK);
378
379 spin_unlock_irqrestore(&dev->pci_irqmask_lock, flags);
380 return v;
381 }
382
383 static int cx23885_risc_decode(u32 risc)
384 {
385 static char *instr[16] = {
386 [RISC_SYNC >> 28] = "sync",
387 [RISC_WRITE >> 28] = "write",
388 [RISC_WRITEC >> 28] = "writec",
389 [RISC_READ >> 28] = "read",
390 [RISC_READC >> 28] = "readc",
391 [RISC_JUMP >> 28] = "jump",
392 [RISC_SKIP >> 28] = "skip",
393 [RISC_WRITERM >> 28] = "writerm",
394 [RISC_WRITECM >> 28] = "writecm",
395 [RISC_WRITECR >> 28] = "writecr",
396 };
397 static int incr[16] = {
398 [RISC_WRITE >> 28] = 3,
399 [RISC_JUMP >> 28] = 3,
400 [RISC_SKIP >> 28] = 1,
401 [RISC_SYNC >> 28] = 1,
402 [RISC_WRITERM >> 28] = 3,
403 [RISC_WRITECM >> 28] = 3,
404 [RISC_WRITECR >> 28] = 4,
405 };
406 static char *bits[] = {
407 "12", "13", "14", "resync",
408 "cnt0", "cnt1", "18", "19",
409 "20", "21", "22", "23",
410 "irq1", "irq2", "eol", "sol",
411 };
412 int i;
413
414 printk("0x%08x [ %s", risc,
415 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
416 for (i = ARRAY_SIZE(bits) - 1; i >= 0; i--)
417 if (risc & (1 << (i + 12)))
418 printk(" %s", bits[i]);
419 printk(" count=%d ]\n", risc & 0xfff);
420 return incr[risc >> 28] ? incr[risc >> 28] : 1;
421 }
422
423 void cx23885_wakeup(struct cx23885_tsport *port,
424 struct cx23885_dmaqueue *q, u32 count)
425 {
426 struct cx23885_dev *dev = port->dev;
427 struct cx23885_buffer *buf;
428 int bc;
429
430 for (bc = 0;; bc++) {
431 if (list_empty(&q->active))
432 break;
433 buf = list_entry(q->active.next,
434 struct cx23885_buffer, vb.queue);
435
436 /* count comes from the hw and is is 16bit wide --
437 * this trick handles wrap-arounds correctly for
438 * up to 32767 buffers in flight... */
439 if ((s16) (count - buf->count) < 0)
440 break;
441
442 v4l2_get_timestamp(&buf->vb.ts);
443 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
444 count, buf->count);
445 buf->vb.state = VIDEOBUF_DONE;
446 list_del(&buf->vb.queue);
447 wake_up(&buf->vb.done);
448 }
449 if (list_empty(&q->active))
450 del_timer(&q->timeout);
451 else
452 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
453 if (bc != 1)
454 printk(KERN_WARNING "%s: %d buffers handled (should be 1)\n",
455 __func__, bc);
456 }
457
458 int cx23885_sram_channel_setup(struct cx23885_dev *dev,
459 struct sram_channel *ch,
460 unsigned int bpl, u32 risc)
461 {
462 unsigned int i, lines;
463 u32 cdt;
464
465 if (ch->cmds_start == 0) {
466 dprintk(1, "%s() Erasing channel [%s]\n", __func__,
467 ch->name);
468 cx_write(ch->ptr1_reg, 0);
469 cx_write(ch->ptr2_reg, 0);
470 cx_write(ch->cnt2_reg, 0);
471 cx_write(ch->cnt1_reg, 0);
472 return 0;
473 } else {
474 dprintk(1, "%s() Configuring channel [%s]\n", __func__,
475 ch->name);
476 }
477
478 bpl = (bpl + 7) & ~7; /* alignment */
479 cdt = ch->cdt;
480 lines = ch->fifo_size / bpl;
481 if (lines > 6)
482 lines = 6;
483 BUG_ON(lines < 2);
484
485 cx_write(8 + 0, RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
486 cx_write(8 + 4, 8);
487 cx_write(8 + 8, 0);
488
489 /* write CDT */
490 for (i = 0; i < lines; i++) {
491 dprintk(2, "%s() 0x%08x <- 0x%08x\n", __func__, cdt + 16*i,
492 ch->fifo_start + bpl*i);
493 cx_write(cdt + 16*i, ch->fifo_start + bpl*i);
494 cx_write(cdt + 16*i + 4, 0);
495 cx_write(cdt + 16*i + 8, 0);
496 cx_write(cdt + 16*i + 12, 0);
497 }
498
499 /* write CMDS */
500 if (ch->jumponly)
501 cx_write(ch->cmds_start + 0, 8);
502 else
503 cx_write(ch->cmds_start + 0, risc);
504 cx_write(ch->cmds_start + 4, 0); /* 64 bits 63-32 */
505 cx_write(ch->cmds_start + 8, cdt);
506 cx_write(ch->cmds_start + 12, (lines*16) >> 3);
507 cx_write(ch->cmds_start + 16, ch->ctrl_start);
508 if (ch->jumponly)
509 cx_write(ch->cmds_start + 20, 0x80000000 | (64 >> 2));
510 else
511 cx_write(ch->cmds_start + 20, 64 >> 2);
512 for (i = 24; i < 80; i += 4)
513 cx_write(ch->cmds_start + i, 0);
514
515 /* fill registers */
516 cx_write(ch->ptr1_reg, ch->fifo_start);
517 cx_write(ch->ptr2_reg, cdt);
518 cx_write(ch->cnt2_reg, (lines*16) >> 3);
519 cx_write(ch->cnt1_reg, (bpl >> 3) - 1);
520
521 dprintk(2, "[bridge %d] sram setup %s: bpl=%d lines=%d\n",
522 dev->bridge,
523 ch->name,
524 bpl,
525 lines);
526
527 return 0;
528 }
529
530 void cx23885_sram_channel_dump(struct cx23885_dev *dev,
531 struct sram_channel *ch)
532 {
533 static char *name[] = {
534 "init risc lo",
535 "init risc hi",
536 "cdt base",
537 "cdt size",
538 "iq base",
539 "iq size",
540 "risc pc lo",
541 "risc pc hi",
542 "iq wr ptr",
543 "iq rd ptr",
544 "cdt current",
545 "pci target lo",
546 "pci target hi",
547 "line / byte",
548 };
549 u32 risc;
550 unsigned int i, j, n;
551
552 printk(KERN_WARNING "%s: %s - dma channel status dump\n",
553 dev->name, ch->name);
554 for (i = 0; i < ARRAY_SIZE(name); i++)
555 printk(KERN_WARNING "%s: cmds: %-15s: 0x%08x\n",
556 dev->name, name[i],
557 cx_read(ch->cmds_start + 4*i));
558
559 for (i = 0; i < 4; i++) {
560 risc = cx_read(ch->cmds_start + 4 * (i + 14));
561 printk(KERN_WARNING "%s: risc%d: ", dev->name, i);
562 cx23885_risc_decode(risc);
563 }
564 for (i = 0; i < (64 >> 2); i += n) {
565 risc = cx_read(ch->ctrl_start + 4 * i);
566 /* No consideration for bits 63-32 */
567
568 printk(KERN_WARNING "%s: (0x%08x) iq %x: ", dev->name,
569 ch->ctrl_start + 4 * i, i);
570 n = cx23885_risc_decode(risc);
571 for (j = 1; j < n; j++) {
572 risc = cx_read(ch->ctrl_start + 4 * (i + j));
573 printk(KERN_WARNING "%s: iq %x: 0x%08x [ arg #%d ]\n",
574 dev->name, i+j, risc, j);
575 }
576 }
577
578 printk(KERN_WARNING "%s: fifo: 0x%08x -> 0x%x\n",
579 dev->name, ch->fifo_start, ch->fifo_start+ch->fifo_size);
580 printk(KERN_WARNING "%s: ctrl: 0x%08x -> 0x%x\n",
581 dev->name, ch->ctrl_start, ch->ctrl_start + 6*16);
582 printk(KERN_WARNING "%s: ptr1_reg: 0x%08x\n",
583 dev->name, cx_read(ch->ptr1_reg));
584 printk(KERN_WARNING "%s: ptr2_reg: 0x%08x\n",
585 dev->name, cx_read(ch->ptr2_reg));
586 printk(KERN_WARNING "%s: cnt1_reg: 0x%08x\n",
587 dev->name, cx_read(ch->cnt1_reg));
588 printk(KERN_WARNING "%s: cnt2_reg: 0x%08x\n",
589 dev->name, cx_read(ch->cnt2_reg));
590 }
591
592 static void cx23885_risc_disasm(struct cx23885_tsport *port,
593 struct btcx_riscmem *risc)
594 {
595 struct cx23885_dev *dev = port->dev;
596 unsigned int i, j, n;
597
598 printk(KERN_INFO "%s: risc disasm: %p [dma=0x%08lx]\n",
599 dev->name, risc->cpu, (unsigned long)risc->dma);
600 for (i = 0; i < (risc->size >> 2); i += n) {
601 printk(KERN_INFO "%s: %04d: ", dev->name, i);
602 n = cx23885_risc_decode(le32_to_cpu(risc->cpu[i]));
603 for (j = 1; j < n; j++)
604 printk(KERN_INFO "%s: %04d: 0x%08x [ arg #%d ]\n",
605 dev->name, i + j, risc->cpu[i + j], j);
606 if (risc->cpu[i] == cpu_to_le32(RISC_JUMP))
607 break;
608 }
609 }
610
611 static void cx23885_shutdown(struct cx23885_dev *dev)
612 {
613 /* disable RISC controller */
614 cx_write(DEV_CNTRL2, 0);
615
616 /* Disable all IR activity */
617 cx_write(IR_CNTRL_REG, 0);
618
619 /* Disable Video A/B activity */
620 cx_write(VID_A_DMA_CTL, 0);
621 cx_write(VID_B_DMA_CTL, 0);
622 cx_write(VID_C_DMA_CTL, 0);
623
624 /* Disable Audio activity */
625 cx_write(AUD_INT_DMA_CTL, 0);
626 cx_write(AUD_EXT_DMA_CTL, 0);
627
628 /* Disable Serial port */
629 cx_write(UART_CTL, 0);
630
631 /* Disable Interrupts */
632 cx23885_irq_disable_all(dev);
633 cx_write(VID_A_INT_MSK, 0);
634 cx_write(VID_B_INT_MSK, 0);
635 cx_write(VID_C_INT_MSK, 0);
636 cx_write(AUDIO_INT_INT_MSK, 0);
637 cx_write(AUDIO_EXT_INT_MSK, 0);
638
639 }
640
641 static void cx23885_reset(struct cx23885_dev *dev)
642 {
643 dprintk(1, "%s()\n", __func__);
644
645 cx23885_shutdown(dev);
646
647 cx_write(PCI_INT_STAT, 0xffffffff);
648 cx_write(VID_A_INT_STAT, 0xffffffff);
649 cx_write(VID_B_INT_STAT, 0xffffffff);
650 cx_write(VID_C_INT_STAT, 0xffffffff);
651 cx_write(AUDIO_INT_INT_STAT, 0xffffffff);
652 cx_write(AUDIO_EXT_INT_STAT, 0xffffffff);
653 cx_write(CLK_DELAY, cx_read(CLK_DELAY) & 0x80000000);
654 cx_write(PAD_CTRL, 0x00500300);
655
656 mdelay(100);
657
658 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
659 720*4, 0);
660 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH02], 128, 0);
661 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH03],
662 188*4, 0);
663 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH04], 128, 0);
664 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH05], 128, 0);
665 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH06],
666 188*4, 0);
667 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH07], 128, 0);
668 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH08], 128, 0);
669 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH09], 128, 0);
670
671 cx23885_gpio_setup(dev);
672 }
673
674
675 static int cx23885_pci_quirks(struct cx23885_dev *dev)
676 {
677 dprintk(1, "%s()\n", __func__);
678
679 /* The cx23885 bridge has a weird bug which causes NMI to be asserted
680 * when DMA begins if RDR_TLCTL0 bit4 is not cleared. It does not
681 * occur on the cx23887 bridge.
682 */
683 if (dev->bridge == CX23885_BRIDGE_885)
684 cx_clear(RDR_TLCTL0, 1 << 4);
685
686 return 0;
687 }
688
689 static int get_resources(struct cx23885_dev *dev)
690 {
691 if (request_mem_region(pci_resource_start(dev->pci, 0),
692 pci_resource_len(dev->pci, 0),
693 dev->name))
694 return 0;
695
696 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
697 dev->name, (unsigned long long)pci_resource_start(dev->pci, 0));
698
699 return -EBUSY;
700 }
701
702 static void cx23885_timeout(unsigned long data);
703 int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
704 u32 reg, u32 mask, u32 value);
705
706 static int cx23885_init_tsport(struct cx23885_dev *dev,
707 struct cx23885_tsport *port, int portno)
708 {
709 dprintk(1, "%s(portno=%d)\n", __func__, portno);
710
711 /* Transport bus init dma queue - Common settings */
712 port->dma_ctl_val = 0x11; /* Enable RISC controller and Fifo */
713 port->ts_int_msk_val = 0x1111; /* TS port bits for RISC */
714 port->vld_misc_val = 0x0;
715 port->hw_sop_ctrl_val = (0x47 << 16 | 188 << 4);
716
717 spin_lock_init(&port->slock);
718 port->dev = dev;
719 port->nr = portno;
720
721 INIT_LIST_HEAD(&port->mpegq.active);
722 INIT_LIST_HEAD(&port->mpegq.queued);
723 port->mpegq.timeout.function = cx23885_timeout;
724 port->mpegq.timeout.data = (unsigned long)port;
725 init_timer(&port->mpegq.timeout);
726
727 mutex_init(&port->frontends.lock);
728 INIT_LIST_HEAD(&port->frontends.felist);
729 port->frontends.active_fe_id = 0;
730
731 /* This should be hardcoded allow a single frontend
732 * attachment to this tsport, keeping the -dvb.c
733 * code clean and safe.
734 */
735 if (!port->num_frontends)
736 port->num_frontends = 1;
737
738 switch (portno) {
739 case 1:
740 port->reg_gpcnt = VID_B_GPCNT;
741 port->reg_gpcnt_ctl = VID_B_GPCNT_CTL;
742 port->reg_dma_ctl = VID_B_DMA_CTL;
743 port->reg_lngth = VID_B_LNGTH;
744 port->reg_hw_sop_ctrl = VID_B_HW_SOP_CTL;
745 port->reg_gen_ctrl = VID_B_GEN_CTL;
746 port->reg_bd_pkt_status = VID_B_BD_PKT_STATUS;
747 port->reg_sop_status = VID_B_SOP_STATUS;
748 port->reg_fifo_ovfl_stat = VID_B_FIFO_OVFL_STAT;
749 port->reg_vld_misc = VID_B_VLD_MISC;
750 port->reg_ts_clk_en = VID_B_TS_CLK_EN;
751 port->reg_src_sel = VID_B_SRC_SEL;
752 port->reg_ts_int_msk = VID_B_INT_MSK;
753 port->reg_ts_int_stat = VID_B_INT_STAT;
754 port->sram_chno = SRAM_CH03; /* VID_B */
755 port->pci_irqmask = 0x02; /* VID_B bit1 */
756 break;
757 case 2:
758 port->reg_gpcnt = VID_C_GPCNT;
759 port->reg_gpcnt_ctl = VID_C_GPCNT_CTL;
760 port->reg_dma_ctl = VID_C_DMA_CTL;
761 port->reg_lngth = VID_C_LNGTH;
762 port->reg_hw_sop_ctrl = VID_C_HW_SOP_CTL;
763 port->reg_gen_ctrl = VID_C_GEN_CTL;
764 port->reg_bd_pkt_status = VID_C_BD_PKT_STATUS;
765 port->reg_sop_status = VID_C_SOP_STATUS;
766 port->reg_fifo_ovfl_stat = VID_C_FIFO_OVFL_STAT;
767 port->reg_vld_misc = VID_C_VLD_MISC;
768 port->reg_ts_clk_en = VID_C_TS_CLK_EN;
769 port->reg_src_sel = 0;
770 port->reg_ts_int_msk = VID_C_INT_MSK;
771 port->reg_ts_int_stat = VID_C_INT_STAT;
772 port->sram_chno = SRAM_CH06; /* VID_C */
773 port->pci_irqmask = 0x04; /* VID_C bit2 */
774 break;
775 default:
776 BUG();
777 }
778
779 cx23885_risc_stopper(dev->pci, &port->mpegq.stopper,
780 port->reg_dma_ctl, port->dma_ctl_val, 0x00);
781
782 return 0;
783 }
784
785 static void cx23885_dev_checkrevision(struct cx23885_dev *dev)
786 {
787 switch (cx_read(RDR_CFG2) & 0xff) {
788 case 0x00:
789 /* cx23885 */
790 dev->hwrevision = 0xa0;
791 break;
792 case 0x01:
793 /* CX23885-12Z */
794 dev->hwrevision = 0xa1;
795 break;
796 case 0x02:
797 /* CX23885-13Z/14Z */
798 dev->hwrevision = 0xb0;
799 break;
800 case 0x03:
801 if (dev->pci->device == 0x8880) {
802 /* CX23888-21Z/22Z */
803 dev->hwrevision = 0xc0;
804 } else {
805 /* CX23885-14Z */
806 dev->hwrevision = 0xa4;
807 }
808 break;
809 case 0x04:
810 if (dev->pci->device == 0x8880) {
811 /* CX23888-31Z */
812 dev->hwrevision = 0xd0;
813 } else {
814 /* CX23885-15Z, CX23888-31Z */
815 dev->hwrevision = 0xa5;
816 }
817 break;
818 case 0x0e:
819 /* CX23887-15Z */
820 dev->hwrevision = 0xc0;
821 break;
822 case 0x0f:
823 /* CX23887-14Z */
824 dev->hwrevision = 0xb1;
825 break;
826 default:
827 printk(KERN_ERR "%s() New hardware revision found 0x%x\n",
828 __func__, dev->hwrevision);
829 }
830 if (dev->hwrevision)
831 printk(KERN_INFO "%s() Hardware revision = 0x%02x\n",
832 __func__, dev->hwrevision);
833 else
834 printk(KERN_ERR "%s() Hardware revision unknown 0x%x\n",
835 __func__, dev->hwrevision);
836 }
837
838 /* Find the first v4l2_subdev member of the group id in hw */
839 struct v4l2_subdev *cx23885_find_hw(struct cx23885_dev *dev, u32 hw)
840 {
841 struct v4l2_subdev *result = NULL;
842 struct v4l2_subdev *sd;
843
844 spin_lock(&dev->v4l2_dev.lock);
845 v4l2_device_for_each_subdev(sd, &dev->v4l2_dev) {
846 if (sd->grp_id == hw) {
847 result = sd;
848 break;
849 }
850 }
851 spin_unlock(&dev->v4l2_dev.lock);
852 return result;
853 }
854
855 static int cx23885_dev_setup(struct cx23885_dev *dev)
856 {
857 int i;
858
859 spin_lock_init(&dev->pci_irqmask_lock);
860
861 mutex_init(&dev->lock);
862 mutex_init(&dev->gpio_lock);
863
864 atomic_inc(&dev->refcount);
865
866 dev->nr = cx23885_devcount++;
867 sprintf(dev->name, "cx23885[%d]", dev->nr);
868
869 /* Configure the internal memory */
870 if (dev->pci->device == 0x8880) {
871 /* Could be 887 or 888, assume a default */
872 dev->bridge = CX23885_BRIDGE_887;
873 /* Apply a sensible clock frequency for the PCIe bridge */
874 dev->clk_freq = 25000000;
875 dev->sram_channels = cx23887_sram_channels;
876 } else
877 if (dev->pci->device == 0x8852) {
878 dev->bridge = CX23885_BRIDGE_885;
879 /* Apply a sensible clock frequency for the PCIe bridge */
880 dev->clk_freq = 28000000;
881 dev->sram_channels = cx23885_sram_channels;
882 } else
883 BUG();
884
885 dprintk(1, "%s() Memory configured for PCIe bridge type %d\n",
886 __func__, dev->bridge);
887
888 /* board config */
889 dev->board = UNSET;
890 if (card[dev->nr] < cx23885_bcount)
891 dev->board = card[dev->nr];
892 for (i = 0; UNSET == dev->board && i < cx23885_idcount; i++)
893 if (dev->pci->subsystem_vendor == cx23885_subids[i].subvendor &&
894 dev->pci->subsystem_device == cx23885_subids[i].subdevice)
895 dev->board = cx23885_subids[i].card;
896 if (UNSET == dev->board) {
897 dev->board = CX23885_BOARD_UNKNOWN;
898 cx23885_card_list(dev);
899 }
900
901 /* If the user specific a clk freq override, apply it */
902 if (cx23885_boards[dev->board].clk_freq > 0)
903 dev->clk_freq = cx23885_boards[dev->board].clk_freq;
904
905 dev->pci_bus = dev->pci->bus->number;
906 dev->pci_slot = PCI_SLOT(dev->pci->devfn);
907 cx23885_irq_add(dev, 0x001f00);
908
909 /* External Master 1 Bus */
910 dev->i2c_bus[0].nr = 0;
911 dev->i2c_bus[0].dev = dev;
912 dev->i2c_bus[0].reg_stat = I2C1_STAT;
913 dev->i2c_bus[0].reg_ctrl = I2C1_CTRL;
914 dev->i2c_bus[0].reg_addr = I2C1_ADDR;
915 dev->i2c_bus[0].reg_rdata = I2C1_RDATA;
916 dev->i2c_bus[0].reg_wdata = I2C1_WDATA;
917 dev->i2c_bus[0].i2c_period = (0x9d << 24); /* 100kHz */
918
919 /* External Master 2 Bus */
920 dev->i2c_bus[1].nr = 1;
921 dev->i2c_bus[1].dev = dev;
922 dev->i2c_bus[1].reg_stat = I2C2_STAT;
923 dev->i2c_bus[1].reg_ctrl = I2C2_CTRL;
924 dev->i2c_bus[1].reg_addr = I2C2_ADDR;
925 dev->i2c_bus[1].reg_rdata = I2C2_RDATA;
926 dev->i2c_bus[1].reg_wdata = I2C2_WDATA;
927 dev->i2c_bus[1].i2c_period = (0x9d << 24); /* 100kHz */
928
929 /* Internal Master 3 Bus */
930 dev->i2c_bus[2].nr = 2;
931 dev->i2c_bus[2].dev = dev;
932 dev->i2c_bus[2].reg_stat = I2C3_STAT;
933 dev->i2c_bus[2].reg_ctrl = I2C3_CTRL;
934 dev->i2c_bus[2].reg_addr = I2C3_ADDR;
935 dev->i2c_bus[2].reg_rdata = I2C3_RDATA;
936 dev->i2c_bus[2].reg_wdata = I2C3_WDATA;
937 dev->i2c_bus[2].i2c_period = (0x07 << 24); /* 1.95MHz */
938
939 if ((cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) ||
940 (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER))
941 cx23885_init_tsport(dev, &dev->ts1, 1);
942
943 if ((cx23885_boards[dev->board].portc == CX23885_MPEG_DVB) ||
944 (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER))
945 cx23885_init_tsport(dev, &dev->ts2, 2);
946
947 if (get_resources(dev) < 0) {
948 printk(KERN_ERR "CORE %s No more PCIe resources for "
949 "subsystem: %04x:%04x\n",
950 dev->name, dev->pci->subsystem_vendor,
951 dev->pci->subsystem_device);
952
953 cx23885_devcount--;
954 return -ENODEV;
955 }
956
957 /* PCIe stuff */
958 dev->lmmio = ioremap(pci_resource_start(dev->pci, 0),
959 pci_resource_len(dev->pci, 0));
960
961 dev->bmmio = (u8 __iomem *)dev->lmmio;
962
963 printk(KERN_INFO "CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
964 dev->name, dev->pci->subsystem_vendor,
965 dev->pci->subsystem_device, cx23885_boards[dev->board].name,
966 dev->board, card[dev->nr] == dev->board ?
967 "insmod option" : "autodetected");
968
969 cx23885_pci_quirks(dev);
970
971 /* Assume some sensible defaults */
972 dev->tuner_type = cx23885_boards[dev->board].tuner_type;
973 dev->tuner_addr = cx23885_boards[dev->board].tuner_addr;
974 dev->tuner_bus = cx23885_boards[dev->board].tuner_bus;
975 dev->radio_type = cx23885_boards[dev->board].radio_type;
976 dev->radio_addr = cx23885_boards[dev->board].radio_addr;
977
978 dprintk(1, "%s() tuner_type = 0x%x tuner_addr = 0x%x tuner_bus = %d\n",
979 __func__, dev->tuner_type, dev->tuner_addr, dev->tuner_bus);
980 dprintk(1, "%s() radio_type = 0x%x radio_addr = 0x%x\n",
981 __func__, dev->radio_type, dev->radio_addr);
982
983 /* The cx23417 encoder has GPIO's that need to be initialised
984 * before DVB, so that demodulators and tuners are out of
985 * reset before DVB uses them.
986 */
987 if ((cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) ||
988 (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER))
989 cx23885_mc417_init(dev);
990
991 /* init hardware */
992 cx23885_reset(dev);
993
994 cx23885_i2c_register(&dev->i2c_bus[0]);
995 cx23885_i2c_register(&dev->i2c_bus[1]);
996 cx23885_i2c_register(&dev->i2c_bus[2]);
997 cx23885_card_setup(dev);
998 call_all(dev, core, s_power, 0);
999 cx23885_ir_init(dev);
1000
1001 if (cx23885_boards[dev->board].porta == CX23885_ANALOG_VIDEO) {
1002 if (cx23885_video_register(dev) < 0) {
1003 printk(KERN_ERR "%s() Failed to register analog "
1004 "video adapters on VID_A\n", __func__);
1005 }
1006 }
1007
1008 if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) {
1009 if (cx23885_boards[dev->board].num_fds_portb)
1010 dev->ts1.num_frontends =
1011 cx23885_boards[dev->board].num_fds_portb;
1012 if (cx23885_dvb_register(&dev->ts1) < 0) {
1013 printk(KERN_ERR "%s() Failed to register dvb adapters on VID_B\n",
1014 __func__);
1015 }
1016 } else
1017 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) {
1018 if (cx23885_417_register(dev) < 0) {
1019 printk(KERN_ERR
1020 "%s() Failed to register 417 on VID_B\n",
1021 __func__);
1022 }
1023 }
1024
1025 if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB) {
1026 if (cx23885_boards[dev->board].num_fds_portc)
1027 dev->ts2.num_frontends =
1028 cx23885_boards[dev->board].num_fds_portc;
1029 if (cx23885_dvb_register(&dev->ts2) < 0) {
1030 printk(KERN_ERR
1031 "%s() Failed to register dvb on VID_C\n",
1032 __func__);
1033 }
1034 } else
1035 if (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER) {
1036 if (cx23885_417_register(dev) < 0) {
1037 printk(KERN_ERR
1038 "%s() Failed to register 417 on VID_C\n",
1039 __func__);
1040 }
1041 }
1042
1043 cx23885_dev_checkrevision(dev);
1044
1045 /* disable MSI for NetUP cards, otherwise CI is not working */
1046 if (cx23885_boards[dev->board].ci_type > 0)
1047 cx_clear(RDR_RDRCTL1, 1 << 8);
1048
1049 switch (dev->board) {
1050 case CX23885_BOARD_TEVII_S470:
1051 case CX23885_BOARD_TEVII_S471:
1052 cx_clear(RDR_RDRCTL1, 1 << 8);
1053 break;
1054 }
1055
1056 return 0;
1057 }
1058
1059 static void cx23885_dev_unregister(struct cx23885_dev *dev)
1060 {
1061 release_mem_region(pci_resource_start(dev->pci, 0),
1062 pci_resource_len(dev->pci, 0));
1063
1064 if (!atomic_dec_and_test(&dev->refcount))
1065 return;
1066
1067 if (cx23885_boards[dev->board].porta == CX23885_ANALOG_VIDEO)
1068 cx23885_video_unregister(dev);
1069
1070 if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB)
1071 cx23885_dvb_unregister(&dev->ts1);
1072
1073 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
1074 cx23885_417_unregister(dev);
1075
1076 if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB)
1077 cx23885_dvb_unregister(&dev->ts2);
1078
1079 if (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER)
1080 cx23885_417_unregister(dev);
1081
1082 cx23885_i2c_unregister(&dev->i2c_bus[2]);
1083 cx23885_i2c_unregister(&dev->i2c_bus[1]);
1084 cx23885_i2c_unregister(&dev->i2c_bus[0]);
1085
1086 iounmap(dev->lmmio);
1087 }
1088
1089 static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist,
1090 unsigned int offset, u32 sync_line,
1091 unsigned int bpl, unsigned int padding,
1092 unsigned int lines, unsigned int lpi)
1093 {
1094 struct scatterlist *sg;
1095 unsigned int line, todo, sol;
1096
1097 /* sync instruction */
1098 if (sync_line != NO_SYNC_LINE)
1099 *(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
1100
1101 /* scan lines */
1102 sg = sglist;
1103 for (line = 0; line < lines; line++) {
1104 while (offset && offset >= sg_dma_len(sg)) {
1105 offset -= sg_dma_len(sg);
1106 sg++;
1107 }
1108
1109 if (lpi && line > 0 && !(line % lpi))
1110 sol = RISC_SOL | RISC_IRQ1 | RISC_CNT_INC;
1111 else
1112 sol = RISC_SOL;
1113
1114 if (bpl <= sg_dma_len(sg)-offset) {
1115 /* fits into current chunk */
1116 *(rp++) = cpu_to_le32(RISC_WRITE|sol|RISC_EOL|bpl);
1117 *(rp++) = cpu_to_le32(sg_dma_address(sg)+offset);
1118 *(rp++) = cpu_to_le32(0); /* bits 63-32 */
1119 offset += bpl;
1120 } else {
1121 /* scanline needs to be split */
1122 todo = bpl;
1123 *(rp++) = cpu_to_le32(RISC_WRITE|sol|
1124 (sg_dma_len(sg)-offset));
1125 *(rp++) = cpu_to_le32(sg_dma_address(sg)+offset);
1126 *(rp++) = cpu_to_le32(0); /* bits 63-32 */
1127 todo -= (sg_dma_len(sg)-offset);
1128 offset = 0;
1129 sg++;
1130 while (todo > sg_dma_len(sg)) {
1131 *(rp++) = cpu_to_le32(RISC_WRITE|
1132 sg_dma_len(sg));
1133 *(rp++) = cpu_to_le32(sg_dma_address(sg));
1134 *(rp++) = cpu_to_le32(0); /* bits 63-32 */
1135 todo -= sg_dma_len(sg);
1136 sg++;
1137 }
1138 *(rp++) = cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
1139 *(rp++) = cpu_to_le32(sg_dma_address(sg));
1140 *(rp++) = cpu_to_le32(0); /* bits 63-32 */
1141 offset += todo;
1142 }
1143 offset += padding;
1144 }
1145
1146 return rp;
1147 }
1148
1149 int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
1150 struct scatterlist *sglist, unsigned int top_offset,
1151 unsigned int bottom_offset, unsigned int bpl,
1152 unsigned int padding, unsigned int lines)
1153 {
1154 u32 instructions, fields;
1155 __le32 *rp;
1156 int rc;
1157
1158 fields = 0;
1159 if (UNSET != top_offset)
1160 fields++;
1161 if (UNSET != bottom_offset)
1162 fields++;
1163
1164 /* estimate risc mem: worst case is one write per page border +
1165 one write per scan line + syncs + jump (all 2 dwords). Padding
1166 can cause next bpl to start close to a page border. First DMA
1167 region may be smaller than PAGE_SIZE */
1168 /* write and jump need and extra dword */
1169 instructions = fields * (1 + ((bpl + padding) * lines)
1170 / PAGE_SIZE + lines);
1171 instructions += 2;
1172 rc = btcx_riscmem_alloc(pci, risc, instructions*12);
1173 if (rc < 0)
1174 return rc;
1175
1176 /* write risc instructions */
1177 rp = risc->cpu;
1178 if (UNSET != top_offset)
1179 rp = cx23885_risc_field(rp, sglist, top_offset, 0,
1180 bpl, padding, lines, 0);
1181 if (UNSET != bottom_offset)
1182 rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x200,
1183 bpl, padding, lines, 0);
1184
1185 /* save pointer to jmp instruction address */
1186 risc->jmp = rp;
1187 BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size);
1188 return 0;
1189 }
1190
1191 int cx23885_risc_databuffer(struct pci_dev *pci,
1192 struct btcx_riscmem *risc,
1193 struct scatterlist *sglist,
1194 unsigned int bpl,
1195 unsigned int lines, unsigned int lpi)
1196 {
1197 u32 instructions;
1198 __le32 *rp;
1199 int rc;
1200
1201 /* estimate risc mem: worst case is one write per page border +
1202 one write per scan line + syncs + jump (all 2 dwords). Here
1203 there is no padding and no sync. First DMA region may be smaller
1204 than PAGE_SIZE */
1205 /* Jump and write need an extra dword */
1206 instructions = 1 + (bpl * lines) / PAGE_SIZE + lines;
1207 instructions += 1;
1208
1209 rc = btcx_riscmem_alloc(pci, risc, instructions*12);
1210 if (rc < 0)
1211 return rc;
1212
1213 /* write risc instructions */
1214 rp = risc->cpu;
1215 rp = cx23885_risc_field(rp, sglist, 0, NO_SYNC_LINE,
1216 bpl, 0, lines, lpi);
1217
1218 /* save pointer to jmp instruction address */
1219 risc->jmp = rp;
1220 BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size);
1221 return 0;
1222 }
1223
1224 int cx23885_risc_vbibuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
1225 struct scatterlist *sglist, unsigned int top_offset,
1226 unsigned int bottom_offset, unsigned int bpl,
1227 unsigned int padding, unsigned int lines)
1228 {
1229 u32 instructions, fields;
1230 __le32 *rp;
1231 int rc;
1232
1233 fields = 0;
1234 if (UNSET != top_offset)
1235 fields++;
1236 if (UNSET != bottom_offset)
1237 fields++;
1238
1239 /* estimate risc mem: worst case is one write per page border +
1240 one write per scan line + syncs + jump (all 2 dwords). Padding
1241 can cause next bpl to start close to a page border. First DMA
1242 region may be smaller than PAGE_SIZE */
1243 /* write and jump need and extra dword */
1244 instructions = fields * (1 + ((bpl + padding) * lines)
1245 / PAGE_SIZE + lines);
1246 instructions += 2;
1247 rc = btcx_riscmem_alloc(pci, risc, instructions*12);
1248 if (rc < 0)
1249 return rc;
1250 /* write risc instructions */
1251 rp = risc->cpu;
1252
1253 /* Sync to line 6, so US CC line 21 will appear in line '12'
1254 * in the userland vbi payload */
1255 if (UNSET != top_offset)
1256 rp = cx23885_risc_field(rp, sglist, top_offset, 6,
1257 bpl, padding, lines, 0);
1258
1259 if (UNSET != bottom_offset)
1260 rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x207,
1261 bpl, padding, lines, 0);
1262
1263
1264
1265 /* save pointer to jmp instruction address */
1266 risc->jmp = rp;
1267 BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size);
1268 return 0;
1269 }
1270
1271
1272 int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
1273 u32 reg, u32 mask, u32 value)
1274 {
1275 __le32 *rp;
1276 int rc;
1277
1278 rc = btcx_riscmem_alloc(pci, risc, 4*16);
1279 if (rc < 0)
1280 return rc;
1281
1282 /* write risc instructions */
1283 rp = risc->cpu;
1284 *(rp++) = cpu_to_le32(RISC_WRITECR | RISC_IRQ2);
1285 *(rp++) = cpu_to_le32(reg);
1286 *(rp++) = cpu_to_le32(value);
1287 *(rp++) = cpu_to_le32(mask);
1288 *(rp++) = cpu_to_le32(RISC_JUMP);
1289 *(rp++) = cpu_to_le32(risc->dma);
1290 *(rp++) = cpu_to_le32(0); /* bits 63-32 */
1291 return 0;
1292 }
1293
1294 void cx23885_free_buffer(struct videobuf_queue *q, struct cx23885_buffer *buf)
1295 {
1296 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
1297
1298 BUG_ON(in_interrupt());
1299 videobuf_waiton(q, &buf->vb, 0, 0);
1300 videobuf_dma_unmap(q->dev, dma);
1301 videobuf_dma_free(dma);
1302 btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc);
1303 buf->vb.state = VIDEOBUF_NEEDS_INIT;
1304 }
1305
1306 static void cx23885_tsport_reg_dump(struct cx23885_tsport *port)
1307 {
1308 struct cx23885_dev *dev = port->dev;
1309
1310 dprintk(1, "%s() Register Dump\n", __func__);
1311 dprintk(1, "%s() DEV_CNTRL2 0x%08X\n", __func__,
1312 cx_read(DEV_CNTRL2));
1313 dprintk(1, "%s() PCI_INT_MSK 0x%08X\n", __func__,
1314 cx23885_irq_get_mask(dev));
1315 dprintk(1, "%s() AUD_INT_INT_MSK 0x%08X\n", __func__,
1316 cx_read(AUDIO_INT_INT_MSK));
1317 dprintk(1, "%s() AUD_INT_DMA_CTL 0x%08X\n", __func__,
1318 cx_read(AUD_INT_DMA_CTL));
1319 dprintk(1, "%s() AUD_EXT_INT_MSK 0x%08X\n", __func__,
1320 cx_read(AUDIO_EXT_INT_MSK));
1321 dprintk(1, "%s() AUD_EXT_DMA_CTL 0x%08X\n", __func__,
1322 cx_read(AUD_EXT_DMA_CTL));
1323 dprintk(1, "%s() PAD_CTRL 0x%08X\n", __func__,
1324 cx_read(PAD_CTRL));
1325 dprintk(1, "%s() ALT_PIN_OUT_SEL 0x%08X\n", __func__,
1326 cx_read(ALT_PIN_OUT_SEL));
1327 dprintk(1, "%s() GPIO2 0x%08X\n", __func__,
1328 cx_read(GPIO2));
1329 dprintk(1, "%s() gpcnt(0x%08X) 0x%08X\n", __func__,
1330 port->reg_gpcnt, cx_read(port->reg_gpcnt));
1331 dprintk(1, "%s() gpcnt_ctl(0x%08X) 0x%08x\n", __func__,
1332 port->reg_gpcnt_ctl, cx_read(port->reg_gpcnt_ctl));
1333 dprintk(1, "%s() dma_ctl(0x%08X) 0x%08x\n", __func__,
1334 port->reg_dma_ctl, cx_read(port->reg_dma_ctl));
1335 if (port->reg_src_sel)
1336 dprintk(1, "%s() src_sel(0x%08X) 0x%08x\n", __func__,
1337 port->reg_src_sel, cx_read(port->reg_src_sel));
1338 dprintk(1, "%s() lngth(0x%08X) 0x%08x\n", __func__,
1339 port->reg_lngth, cx_read(port->reg_lngth));
1340 dprintk(1, "%s() hw_sop_ctrl(0x%08X) 0x%08x\n", __func__,
1341 port->reg_hw_sop_ctrl, cx_read(port->reg_hw_sop_ctrl));
1342 dprintk(1, "%s() gen_ctrl(0x%08X) 0x%08x\n", __func__,
1343 port->reg_gen_ctrl, cx_read(port->reg_gen_ctrl));
1344 dprintk(1, "%s() bd_pkt_status(0x%08X) 0x%08x\n", __func__,
1345 port->reg_bd_pkt_status, cx_read(port->reg_bd_pkt_status));
1346 dprintk(1, "%s() sop_status(0x%08X) 0x%08x\n", __func__,
1347 port->reg_sop_status, cx_read(port->reg_sop_status));
1348 dprintk(1, "%s() fifo_ovfl_stat(0x%08X) 0x%08x\n", __func__,
1349 port->reg_fifo_ovfl_stat, cx_read(port->reg_fifo_ovfl_stat));
1350 dprintk(1, "%s() vld_misc(0x%08X) 0x%08x\n", __func__,
1351 port->reg_vld_misc, cx_read(port->reg_vld_misc));
1352 dprintk(1, "%s() ts_clk_en(0x%08X) 0x%08x\n", __func__,
1353 port->reg_ts_clk_en, cx_read(port->reg_ts_clk_en));
1354 dprintk(1, "%s() ts_int_msk(0x%08X) 0x%08x\n", __func__,
1355 port->reg_ts_int_msk, cx_read(port->reg_ts_int_msk));
1356 }
1357
1358 static int cx23885_start_dma(struct cx23885_tsport *port,
1359 struct cx23885_dmaqueue *q,
1360 struct cx23885_buffer *buf)
1361 {
1362 struct cx23885_dev *dev = port->dev;
1363 u32 reg;
1364
1365 dprintk(1, "%s() w: %d, h: %d, f: %d\n", __func__,
1366 buf->vb.width, buf->vb.height, buf->vb.field);
1367
1368 /* Stop the fifo and risc engine for this port */
1369 cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
1370
1371 /* setup fifo + format */
1372 cx23885_sram_channel_setup(dev,
1373 &dev->sram_channels[port->sram_chno],
1374 port->ts_packet_size, buf->risc.dma);
1375 if (debug > 5) {
1376 cx23885_sram_channel_dump(dev,
1377 &dev->sram_channels[port->sram_chno]);
1378 cx23885_risc_disasm(port, &buf->risc);
1379 }
1380
1381 /* write TS length to chip */
1382 cx_write(port->reg_lngth, buf->vb.width);
1383
1384 if ((!(cx23885_boards[dev->board].portb & CX23885_MPEG_DVB)) &&
1385 (!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB))) {
1386 printk("%s() Unsupported .portb/c (0x%08x)/(0x%08x)\n",
1387 __func__,
1388 cx23885_boards[dev->board].portb,
1389 cx23885_boards[dev->board].portc);
1390 return -EINVAL;
1391 }
1392
1393 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
1394 cx23885_av_clk(dev, 0);
1395
1396 udelay(100);
1397
1398 /* If the port supports SRC SELECT, configure it */
1399 if (port->reg_src_sel)
1400 cx_write(port->reg_src_sel, port->src_sel_val);
1401
1402 cx_write(port->reg_hw_sop_ctrl, port->hw_sop_ctrl_val);
1403 cx_write(port->reg_ts_clk_en, port->ts_clk_en_val);
1404 cx_write(port->reg_vld_misc, port->vld_misc_val);
1405 cx_write(port->reg_gen_ctrl, port->gen_ctrl_val);
1406 udelay(100);
1407
1408 /* NOTE: this is 2 (reserved) for portb, does it matter? */
1409 /* reset counter to zero */
1410 cx_write(port->reg_gpcnt_ctl, 3);
1411 q->count = 1;
1412
1413 /* Set VIDB pins to input */
1414 if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) {
1415 reg = cx_read(PAD_CTRL);
1416 reg &= ~0x3; /* Clear TS1_OE & TS1_SOP_OE */
1417 cx_write(PAD_CTRL, reg);
1418 }
1419
1420 /* Set VIDC pins to input */
1421 if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB) {
1422 reg = cx_read(PAD_CTRL);
1423 reg &= ~0x4; /* Clear TS2_SOP_OE */
1424 cx_write(PAD_CTRL, reg);
1425 }
1426
1427 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) {
1428
1429 reg = cx_read(PAD_CTRL);
1430 reg = reg & ~0x1; /* Clear TS1_OE */
1431
1432 /* FIXME, bit 2 writing here is questionable */
1433 /* set TS1_SOP_OE and TS1_OE_HI */
1434 reg = reg | 0xa;
1435 cx_write(PAD_CTRL, reg);
1436
1437 /* FIXME and these two registers should be documented. */
1438 cx_write(CLK_DELAY, cx_read(CLK_DELAY) | 0x80000011);
1439 cx_write(ALT_PIN_OUT_SEL, 0x10100045);
1440 }
1441
1442 switch (dev->bridge) {
1443 case CX23885_BRIDGE_885:
1444 case CX23885_BRIDGE_887:
1445 case CX23885_BRIDGE_888:
1446 /* enable irqs */
1447 dprintk(1, "%s() enabling TS int's and DMA\n", __func__);
1448 cx_set(port->reg_ts_int_msk, port->ts_int_msk_val);
1449 cx_set(port->reg_dma_ctl, port->dma_ctl_val);
1450 cx23885_irq_add(dev, port->pci_irqmask);
1451 cx23885_irq_enable_all(dev);
1452 break;
1453 default:
1454 BUG();
1455 }
1456
1457 cx_set(DEV_CNTRL2, (1<<5)); /* Enable RISC controller */
1458
1459 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
1460 cx23885_av_clk(dev, 1);
1461
1462 if (debug > 4)
1463 cx23885_tsport_reg_dump(port);
1464
1465 return 0;
1466 }
1467
1468 static int cx23885_stop_dma(struct cx23885_tsport *port)
1469 {
1470 struct cx23885_dev *dev = port->dev;
1471 u32 reg;
1472
1473 dprintk(1, "%s()\n", __func__);
1474
1475 /* Stop interrupts and DMA */
1476 cx_clear(port->reg_ts_int_msk, port->ts_int_msk_val);
1477 cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
1478
1479 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER) {
1480
1481 reg = cx_read(PAD_CTRL);
1482
1483 /* Set TS1_OE */
1484 reg = reg | 0x1;
1485
1486 /* clear TS1_SOP_OE and TS1_OE_HI */
1487 reg = reg & ~0xa;
1488 cx_write(PAD_CTRL, reg);
1489 cx_write(port->reg_src_sel, 0);
1490 cx_write(port->reg_gen_ctrl, 8);
1491
1492 }
1493
1494 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
1495 cx23885_av_clk(dev, 0);
1496
1497 return 0;
1498 }
1499
1500 int cx23885_restart_queue(struct cx23885_tsport *port,
1501 struct cx23885_dmaqueue *q)
1502 {
1503 struct cx23885_dev *dev = port->dev;
1504 struct cx23885_buffer *buf;
1505
1506 dprintk(5, "%s()\n", __func__);
1507 if (list_empty(&q->active)) {
1508 struct cx23885_buffer *prev;
1509 prev = NULL;
1510
1511 dprintk(5, "%s() queue is empty\n", __func__);
1512
1513 for (;;) {
1514 if (list_empty(&q->queued))
1515 return 0;
1516 buf = list_entry(q->queued.next, struct cx23885_buffer,
1517 vb.queue);
1518 if (NULL == prev) {
1519 list_move_tail(&buf->vb.queue, &q->active);
1520 cx23885_start_dma(port, q, buf);
1521 buf->vb.state = VIDEOBUF_ACTIVE;
1522 buf->count = q->count++;
1523 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
1524 dprintk(5, "[%p/%d] restart_queue - f/active\n",
1525 buf, buf->vb.i);
1526
1527 } else if (prev->vb.width == buf->vb.width &&
1528 prev->vb.height == buf->vb.height &&
1529 prev->fmt == buf->fmt) {
1530 list_move_tail(&buf->vb.queue, &q->active);
1531 buf->vb.state = VIDEOBUF_ACTIVE;
1532 buf->count = q->count++;
1533 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
1534 /* 64 bit bits 63-32 */
1535 prev->risc.jmp[2] = cpu_to_le32(0);
1536 dprintk(5, "[%p/%d] restart_queue - m/active\n",
1537 buf, buf->vb.i);
1538 } else {
1539 return 0;
1540 }
1541 prev = buf;
1542 }
1543 return 0;
1544 }
1545
1546 buf = list_entry(q->active.next, struct cx23885_buffer, vb.queue);
1547 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
1548 buf, buf->vb.i);
1549 cx23885_start_dma(port, q, buf);
1550 list_for_each_entry(buf, &q->active, vb.queue)
1551 buf->count = q->count++;
1552 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
1553 return 0;
1554 }
1555
1556 /* ------------------------------------------------------------------ */
1557
1558 int cx23885_buf_prepare(struct videobuf_queue *q, struct cx23885_tsport *port,
1559 struct cx23885_buffer *buf, enum v4l2_field field)
1560 {
1561 struct cx23885_dev *dev = port->dev;
1562 int size = port->ts_packet_size * port->ts_packet_count;
1563 int rc;
1564
1565 dprintk(1, "%s: %p\n", __func__, buf);
1566 if (0 != buf->vb.baddr && buf->vb.bsize < size)
1567 return -EINVAL;
1568
1569 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1570 buf->vb.width = port->ts_packet_size;
1571 buf->vb.height = port->ts_packet_count;
1572 buf->vb.size = size;
1573 buf->vb.field = field /*V4L2_FIELD_TOP*/;
1574
1575 rc = videobuf_iolock(q, &buf->vb, NULL);
1576 if (0 != rc)
1577 goto fail;
1578 cx23885_risc_databuffer(dev->pci, &buf->risc,
1579 videobuf_to_dma(&buf->vb)->sglist,
1580 buf->vb.width, buf->vb.height, 0);
1581 }
1582 buf->vb.state = VIDEOBUF_PREPARED;
1583 return 0;
1584
1585 fail:
1586 cx23885_free_buffer(q, buf);
1587 return rc;
1588 }
1589
1590 void cx23885_buf_queue(struct cx23885_tsport *port, struct cx23885_buffer *buf)
1591 {
1592 struct cx23885_buffer *prev;
1593 struct cx23885_dev *dev = port->dev;
1594 struct cx23885_dmaqueue *cx88q = &port->mpegq;
1595
1596 /* add jump to stopper */
1597 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
1598 buf->risc.jmp[1] = cpu_to_le32(cx88q->stopper.dma);
1599 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
1600
1601 if (list_empty(&cx88q->active)) {
1602 dprintk(1, "queue is empty - first active\n");
1603 list_add_tail(&buf->vb.queue, &cx88q->active);
1604 cx23885_start_dma(port, cx88q, buf);
1605 buf->vb.state = VIDEOBUF_ACTIVE;
1606 buf->count = cx88q->count++;
1607 mod_timer(&cx88q->timeout, jiffies + BUFFER_TIMEOUT);
1608 dprintk(1, "[%p/%d] %s - first active\n",
1609 buf, buf->vb.i, __func__);
1610 } else {
1611 dprintk(1, "queue is not empty - append to active\n");
1612 prev = list_entry(cx88q->active.prev, struct cx23885_buffer,
1613 vb.queue);
1614 list_add_tail(&buf->vb.queue, &cx88q->active);
1615 buf->vb.state = VIDEOBUF_ACTIVE;
1616 buf->count = cx88q->count++;
1617 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
1618 prev->risc.jmp[2] = cpu_to_le32(0); /* 64 bit bits 63-32 */
1619 dprintk(1, "[%p/%d] %s - append to active\n",
1620 buf, buf->vb.i, __func__);
1621 }
1622 }
1623
1624 /* ----------------------------------------------------------- */
1625
1626 static void do_cancel_buffers(struct cx23885_tsport *port, char *reason,
1627 int restart)
1628 {
1629 struct cx23885_dev *dev = port->dev;
1630 struct cx23885_dmaqueue *q = &port->mpegq;
1631 struct cx23885_buffer *buf;
1632 unsigned long flags;
1633
1634 spin_lock_irqsave(&port->slock, flags);
1635 while (!list_empty(&q->active)) {
1636 buf = list_entry(q->active.next, struct cx23885_buffer,
1637 vb.queue);
1638 list_del(&buf->vb.queue);
1639 buf->vb.state = VIDEOBUF_ERROR;
1640 wake_up(&buf->vb.done);
1641 dprintk(1, "[%p/%d] %s - dma=0x%08lx\n",
1642 buf, buf->vb.i, reason, (unsigned long)buf->risc.dma);
1643 }
1644 if (restart) {
1645 dprintk(1, "restarting queue\n");
1646 cx23885_restart_queue(port, q);
1647 }
1648 spin_unlock_irqrestore(&port->slock, flags);
1649 }
1650
1651 void cx23885_cancel_buffers(struct cx23885_tsport *port)
1652 {
1653 struct cx23885_dev *dev = port->dev;
1654 struct cx23885_dmaqueue *q = &port->mpegq;
1655
1656 dprintk(1, "%s()\n", __func__);
1657 del_timer_sync(&q->timeout);
1658 cx23885_stop_dma(port);
1659 do_cancel_buffers(port, "cancel", 0);
1660 }
1661
1662 static void cx23885_timeout(unsigned long data)
1663 {
1664 struct cx23885_tsport *port = (struct cx23885_tsport *)data;
1665 struct cx23885_dev *dev = port->dev;
1666
1667 dprintk(1, "%s()\n", __func__);
1668
1669 if (debug > 5)
1670 cx23885_sram_channel_dump(dev,
1671 &dev->sram_channels[port->sram_chno]);
1672
1673 cx23885_stop_dma(port);
1674 do_cancel_buffers(port, "timeout", 1);
1675 }
1676
1677 int cx23885_irq_417(struct cx23885_dev *dev, u32 status)
1678 {
1679 /* FIXME: port1 assumption here. */
1680 struct cx23885_tsport *port = &dev->ts1;
1681 int count = 0;
1682 int handled = 0;
1683
1684 if (status == 0)
1685 return handled;
1686
1687 count = cx_read(port->reg_gpcnt);
1688 dprintk(7, "status: 0x%08x mask: 0x%08x count: 0x%x\n",
1689 status, cx_read(port->reg_ts_int_msk), count);
1690
1691 if ((status & VID_B_MSK_BAD_PKT) ||
1692 (status & VID_B_MSK_OPC_ERR) ||
1693 (status & VID_B_MSK_VBI_OPC_ERR) ||
1694 (status & VID_B_MSK_SYNC) ||
1695 (status & VID_B_MSK_VBI_SYNC) ||
1696 (status & VID_B_MSK_OF) ||
1697 (status & VID_B_MSK_VBI_OF)) {
1698 printk(KERN_ERR "%s: V4L mpeg risc op code error, status "
1699 "= 0x%x\n", dev->name, status);
1700 if (status & VID_B_MSK_BAD_PKT)
1701 dprintk(1, " VID_B_MSK_BAD_PKT\n");
1702 if (status & VID_B_MSK_OPC_ERR)
1703 dprintk(1, " VID_B_MSK_OPC_ERR\n");
1704 if (status & VID_B_MSK_VBI_OPC_ERR)
1705 dprintk(1, " VID_B_MSK_VBI_OPC_ERR\n");
1706 if (status & VID_B_MSK_SYNC)
1707 dprintk(1, " VID_B_MSK_SYNC\n");
1708 if (status & VID_B_MSK_VBI_SYNC)
1709 dprintk(1, " VID_B_MSK_VBI_SYNC\n");
1710 if (status & VID_B_MSK_OF)
1711 dprintk(1, " VID_B_MSK_OF\n");
1712 if (status & VID_B_MSK_VBI_OF)
1713 dprintk(1, " VID_B_MSK_VBI_OF\n");
1714
1715 cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
1716 cx23885_sram_channel_dump(dev,
1717 &dev->sram_channels[port->sram_chno]);
1718 cx23885_417_check_encoder(dev);
1719 } else if (status & VID_B_MSK_RISCI1) {
1720 dprintk(7, " VID_B_MSK_RISCI1\n");
1721 spin_lock(&port->slock);
1722 cx23885_wakeup(port, &port->mpegq, count);
1723 spin_unlock(&port->slock);
1724 } else if (status & VID_B_MSK_RISCI2) {
1725 dprintk(7, " VID_B_MSK_RISCI2\n");
1726 spin_lock(&port->slock);
1727 cx23885_restart_queue(port, &port->mpegq);
1728 spin_unlock(&port->slock);
1729 }
1730 if (status) {
1731 cx_write(port->reg_ts_int_stat, status);
1732 handled = 1;
1733 }
1734
1735 return handled;
1736 }
1737
1738 static int cx23885_irq_ts(struct cx23885_tsport *port, u32 status)
1739 {
1740 struct cx23885_dev *dev = port->dev;
1741 int handled = 0;
1742 u32 count;
1743
1744 if ((status & VID_BC_MSK_OPC_ERR) ||
1745 (status & VID_BC_MSK_BAD_PKT) ||
1746 (status & VID_BC_MSK_SYNC) ||
1747 (status & VID_BC_MSK_OF)) {
1748
1749 if (status & VID_BC_MSK_OPC_ERR)
1750 dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n",
1751 VID_BC_MSK_OPC_ERR);
1752
1753 if (status & VID_BC_MSK_BAD_PKT)
1754 dprintk(7, " (VID_BC_MSK_BAD_PKT 0x%08x)\n",
1755 VID_BC_MSK_BAD_PKT);
1756
1757 if (status & VID_BC_MSK_SYNC)
1758 dprintk(7, " (VID_BC_MSK_SYNC 0x%08x)\n",
1759 VID_BC_MSK_SYNC);
1760
1761 if (status & VID_BC_MSK_OF)
1762 dprintk(7, " (VID_BC_MSK_OF 0x%08x)\n",
1763 VID_BC_MSK_OF);
1764
1765 printk(KERN_ERR "%s: mpeg risc op code error\n", dev->name);
1766
1767 cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
1768 cx23885_sram_channel_dump(dev,
1769 &dev->sram_channels[port->sram_chno]);
1770
1771 } else if (status & VID_BC_MSK_RISCI1) {
1772
1773 dprintk(7, " (RISCI1 0x%08x)\n", VID_BC_MSK_RISCI1);
1774
1775 spin_lock(&port->slock);
1776 count = cx_read(port->reg_gpcnt);
1777 cx23885_wakeup(port, &port->mpegq, count);
1778 spin_unlock(&port->slock);
1779
1780 } else if (status & VID_BC_MSK_RISCI2) {
1781
1782 dprintk(7, " (RISCI2 0x%08x)\n", VID_BC_MSK_RISCI2);
1783
1784 spin_lock(&port->slock);
1785 cx23885_restart_queue(port, &port->mpegq);
1786 spin_unlock(&port->slock);
1787
1788 }
1789 if (status) {
1790 cx_write(port->reg_ts_int_stat, status);
1791 handled = 1;
1792 }
1793
1794 return handled;
1795 }
1796
1797 static irqreturn_t cx23885_irq(int irq, void *dev_id)
1798 {
1799 struct cx23885_dev *dev = dev_id;
1800 struct cx23885_tsport *ts1 = &dev->ts1;
1801 struct cx23885_tsport *ts2 = &dev->ts2;
1802 u32 pci_status, pci_mask;
1803 u32 vida_status, vida_mask;
1804 u32 audint_status, audint_mask;
1805 u32 ts1_status, ts1_mask;
1806 u32 ts2_status, ts2_mask;
1807 int vida_count = 0, ts1_count = 0, ts2_count = 0, handled = 0;
1808 int audint_count = 0;
1809 bool subdev_handled;
1810
1811 pci_status = cx_read(PCI_INT_STAT);
1812 pci_mask = cx23885_irq_get_mask(dev);
1813 vida_status = cx_read(VID_A_INT_STAT);
1814 vida_mask = cx_read(VID_A_INT_MSK);
1815 audint_status = cx_read(AUDIO_INT_INT_STAT);
1816 audint_mask = cx_read(AUDIO_INT_INT_MSK);
1817 ts1_status = cx_read(VID_B_INT_STAT);
1818 ts1_mask = cx_read(VID_B_INT_MSK);
1819 ts2_status = cx_read(VID_C_INT_STAT);
1820 ts2_mask = cx_read(VID_C_INT_MSK);
1821
1822 if ((pci_status == 0) && (ts2_status == 0) && (ts1_status == 0))
1823 goto out;
1824
1825 vida_count = cx_read(VID_A_GPCNT);
1826 audint_count = cx_read(AUD_INT_A_GPCNT);
1827 ts1_count = cx_read(ts1->reg_gpcnt);
1828 ts2_count = cx_read(ts2->reg_gpcnt);
1829 dprintk(7, "pci_status: 0x%08x pci_mask: 0x%08x\n",
1830 pci_status, pci_mask);
1831 dprintk(7, "vida_status: 0x%08x vida_mask: 0x%08x count: 0x%x\n",
1832 vida_status, vida_mask, vida_count);
1833 dprintk(7, "audint_status: 0x%08x audint_mask: 0x%08x count: 0x%x\n",
1834 audint_status, audint_mask, audint_count);
1835 dprintk(7, "ts1_status: 0x%08x ts1_mask: 0x%08x count: 0x%x\n",
1836 ts1_status, ts1_mask, ts1_count);
1837 dprintk(7, "ts2_status: 0x%08x ts2_mask: 0x%08x count: 0x%x\n",
1838 ts2_status, ts2_mask, ts2_count);
1839
1840 if (pci_status & (PCI_MSK_RISC_RD | PCI_MSK_RISC_WR |
1841 PCI_MSK_AL_RD | PCI_MSK_AL_WR | PCI_MSK_APB_DMA |
1842 PCI_MSK_VID_C | PCI_MSK_VID_B | PCI_MSK_VID_A |
1843 PCI_MSK_AUD_INT | PCI_MSK_AUD_EXT |
1844 PCI_MSK_GPIO0 | PCI_MSK_GPIO1 |
1845 PCI_MSK_AV_CORE | PCI_MSK_IR)) {
1846
1847 if (pci_status & PCI_MSK_RISC_RD)
1848 dprintk(7, " (PCI_MSK_RISC_RD 0x%08x)\n",
1849 PCI_MSK_RISC_RD);
1850
1851 if (pci_status & PCI_MSK_RISC_WR)
1852 dprintk(7, " (PCI_MSK_RISC_WR 0x%08x)\n",
1853 PCI_MSK_RISC_WR);
1854
1855 if (pci_status & PCI_MSK_AL_RD)
1856 dprintk(7, " (PCI_MSK_AL_RD 0x%08x)\n",
1857 PCI_MSK_AL_RD);
1858
1859 if (pci_status & PCI_MSK_AL_WR)
1860 dprintk(7, " (PCI_MSK_AL_WR 0x%08x)\n",
1861 PCI_MSK_AL_WR);
1862
1863 if (pci_status & PCI_MSK_APB_DMA)
1864 dprintk(7, " (PCI_MSK_APB_DMA 0x%08x)\n",
1865 PCI_MSK_APB_DMA);
1866
1867 if (pci_status & PCI_MSK_VID_C)
1868 dprintk(7, " (PCI_MSK_VID_C 0x%08x)\n",
1869 PCI_MSK_VID_C);
1870
1871 if (pci_status & PCI_MSK_VID_B)
1872 dprintk(7, " (PCI_MSK_VID_B 0x%08x)\n",
1873 PCI_MSK_VID_B);
1874
1875 if (pci_status & PCI_MSK_VID_A)
1876 dprintk(7, " (PCI_MSK_VID_A 0x%08x)\n",
1877 PCI_MSK_VID_A);
1878
1879 if (pci_status & PCI_MSK_AUD_INT)
1880 dprintk(7, " (PCI_MSK_AUD_INT 0x%08x)\n",
1881 PCI_MSK_AUD_INT);
1882
1883 if (pci_status & PCI_MSK_AUD_EXT)
1884 dprintk(7, " (PCI_MSK_AUD_EXT 0x%08x)\n",
1885 PCI_MSK_AUD_EXT);
1886
1887 if (pci_status & PCI_MSK_GPIO0)
1888 dprintk(7, " (PCI_MSK_GPIO0 0x%08x)\n",
1889 PCI_MSK_GPIO0);
1890
1891 if (pci_status & PCI_MSK_GPIO1)
1892 dprintk(7, " (PCI_MSK_GPIO1 0x%08x)\n",
1893 PCI_MSK_GPIO1);
1894
1895 if (pci_status & PCI_MSK_AV_CORE)
1896 dprintk(7, " (PCI_MSK_AV_CORE 0x%08x)\n",
1897 PCI_MSK_AV_CORE);
1898
1899 if (pci_status & PCI_MSK_IR)
1900 dprintk(7, " (PCI_MSK_IR 0x%08x)\n",
1901 PCI_MSK_IR);
1902 }
1903
1904 if (cx23885_boards[dev->board].ci_type == 1 &&
1905 (pci_status & (PCI_MSK_GPIO1 | PCI_MSK_GPIO0)))
1906 handled += netup_ci_slot_status(dev, pci_status);
1907
1908 if (cx23885_boards[dev->board].ci_type == 2 &&
1909 (pci_status & PCI_MSK_GPIO0))
1910 handled += altera_ci_irq(dev);
1911
1912 if (ts1_status) {
1913 if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB)
1914 handled += cx23885_irq_ts(ts1, ts1_status);
1915 else
1916 if (cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER)
1917 handled += cx23885_irq_417(dev, ts1_status);
1918 }
1919
1920 if (ts2_status) {
1921 if (cx23885_boards[dev->board].portc == CX23885_MPEG_DVB)
1922 handled += cx23885_irq_ts(ts2, ts2_status);
1923 else
1924 if (cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER)
1925 handled += cx23885_irq_417(dev, ts2_status);
1926 }
1927
1928 if (vida_status)
1929 handled += cx23885_video_irq(dev, vida_status);
1930
1931 if (audint_status)
1932 handled += cx23885_audio_irq(dev, audint_status, audint_mask);
1933
1934 if (pci_status & PCI_MSK_IR) {
1935 subdev_handled = false;
1936 v4l2_subdev_call(dev->sd_ir, core, interrupt_service_routine,
1937 pci_status, &subdev_handled);
1938 if (subdev_handled)
1939 handled++;
1940 }
1941
1942 if ((pci_status & pci_mask) & PCI_MSK_AV_CORE) {
1943 cx23885_irq_disable(dev, PCI_MSK_AV_CORE);
1944 schedule_work(&dev->cx25840_work);
1945 handled++;
1946 }
1947
1948 if (handled)
1949 cx_write(PCI_INT_STAT, pci_status);
1950 out:
1951 return IRQ_RETVAL(handled);
1952 }
1953
1954 static void cx23885_v4l2_dev_notify(struct v4l2_subdev *sd,
1955 unsigned int notification, void *arg)
1956 {
1957 struct cx23885_dev *dev;
1958
1959 if (sd == NULL)
1960 return;
1961
1962 dev = to_cx23885(sd->v4l2_dev);
1963
1964 switch (notification) {
1965 case V4L2_SUBDEV_IR_RX_NOTIFY: /* Possibly called in an IRQ context */
1966 if (sd == dev->sd_ir)
1967 cx23885_ir_rx_v4l2_dev_notify(sd, *(u32 *)arg);
1968 break;
1969 case V4L2_SUBDEV_IR_TX_NOTIFY: /* Possibly called in an IRQ context */
1970 if (sd == dev->sd_ir)
1971 cx23885_ir_tx_v4l2_dev_notify(sd, *(u32 *)arg);
1972 break;
1973 }
1974 }
1975
1976 static void cx23885_v4l2_dev_notify_init(struct cx23885_dev *dev)
1977 {
1978 INIT_WORK(&dev->cx25840_work, cx23885_av_work_handler);
1979 INIT_WORK(&dev->ir_rx_work, cx23885_ir_rx_work_handler);
1980 INIT_WORK(&dev->ir_tx_work, cx23885_ir_tx_work_handler);
1981 dev->v4l2_dev.notify = cx23885_v4l2_dev_notify;
1982 }
1983
1984 static inline int encoder_on_portb(struct cx23885_dev *dev)
1985 {
1986 return cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER;
1987 }
1988
1989 static inline int encoder_on_portc(struct cx23885_dev *dev)
1990 {
1991 return cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER;
1992 }
1993
1994 /* Mask represents 32 different GPIOs, GPIO's are split into multiple
1995 * registers depending on the board configuration (and whether the
1996 * 417 encoder (wi it's own GPIO's) are present. Each GPIO bit will
1997 * be pushed into the correct hardware register, regardless of the
1998 * physical location. Certain registers are shared so we sanity check
1999 * and report errors if we think we're tampering with a GPIo that might
2000 * be assigned to the encoder (and used for the host bus).
2001 *
2002 * GPIO 2 thru 0 - On the cx23885 bridge
2003 * GPIO 18 thru 3 - On the cx23417 host bus interface
2004 * GPIO 23 thru 19 - On the cx25840 a/v core
2005 */
2006 void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask)
2007 {
2008 if (mask & 0x7)
2009 cx_set(GP0_IO, mask & 0x7);
2010
2011 if (mask & 0x0007fff8) {
2012 if (encoder_on_portb(dev) || encoder_on_portc(dev))
2013 printk(KERN_ERR
2014 "%s: Setting GPIO on encoder ports\n",
2015 dev->name);
2016 cx_set(MC417_RWD, (mask & 0x0007fff8) >> 3);
2017 }
2018
2019 /* TODO: 23-19 */
2020 if (mask & 0x00f80000)
2021 printk(KERN_INFO "%s: Unsupported\n", dev->name);
2022 }
2023
2024 void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask)
2025 {
2026 if (mask & 0x00000007)
2027 cx_clear(GP0_IO, mask & 0x7);
2028
2029 if (mask & 0x0007fff8) {
2030 if (encoder_on_portb(dev) || encoder_on_portc(dev))
2031 printk(KERN_ERR
2032 "%s: Clearing GPIO moving on encoder ports\n",
2033 dev->name);
2034 cx_clear(MC417_RWD, (mask & 0x7fff8) >> 3);
2035 }
2036
2037 /* TODO: 23-19 */
2038 if (mask & 0x00f80000)
2039 printk(KERN_INFO "%s: Unsupported\n", dev->name);
2040 }
2041
2042 u32 cx23885_gpio_get(struct cx23885_dev *dev, u32 mask)
2043 {
2044 if (mask & 0x00000007)
2045 return (cx_read(GP0_IO) >> 8) & mask & 0x7;
2046
2047 if (mask & 0x0007fff8) {
2048 if (encoder_on_portb(dev) || encoder_on_portc(dev))
2049 printk(KERN_ERR
2050 "%s: Reading GPIO moving on encoder ports\n",
2051 dev->name);
2052 return (cx_read(MC417_RWD) & ((mask & 0x7fff8) >> 3)) << 3;
2053 }
2054
2055 /* TODO: 23-19 */
2056 if (mask & 0x00f80000)
2057 printk(KERN_INFO "%s: Unsupported\n", dev->name);
2058
2059 return 0;
2060 }
2061
2062 void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput)
2063 {
2064 if ((mask & 0x00000007) && asoutput)
2065 cx_set(GP0_IO, (mask & 0x7) << 16);
2066 else if ((mask & 0x00000007) && !asoutput)
2067 cx_clear(GP0_IO, (mask & 0x7) << 16);
2068
2069 if (mask & 0x0007fff8) {
2070 if (encoder_on_portb(dev) || encoder_on_portc(dev))
2071 printk(KERN_ERR
2072 "%s: Enabling GPIO on encoder ports\n",
2073 dev->name);
2074 }
2075
2076 /* MC417_OEN is active low for output, write 1 for an input */
2077 if ((mask & 0x0007fff8) && asoutput)
2078 cx_clear(MC417_OEN, (mask & 0x7fff8) >> 3);
2079
2080 else if ((mask & 0x0007fff8) && !asoutput)
2081 cx_set(MC417_OEN, (mask & 0x7fff8) >> 3);
2082
2083 /* TODO: 23-19 */
2084 }
2085
2086 static int cx23885_initdev(struct pci_dev *pci_dev,
2087 const struct pci_device_id *pci_id)
2088 {
2089 struct cx23885_dev *dev;
2090 int err;
2091
2092 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2093 if (NULL == dev)
2094 return -ENOMEM;
2095
2096 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
2097 if (err < 0)
2098 goto fail_free;
2099
2100 /* Prepare to handle notifications from subdevices */
2101 cx23885_v4l2_dev_notify_init(dev);
2102
2103 /* pci init */
2104 dev->pci = pci_dev;
2105 if (pci_enable_device(pci_dev)) {
2106 err = -EIO;
2107 goto fail_unreg;
2108 }
2109
2110 if (cx23885_dev_setup(dev) < 0) {
2111 err = -EINVAL;
2112 goto fail_unreg;
2113 }
2114
2115 /* print pci info */
2116 dev->pci_rev = pci_dev->revision;
2117 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
2118 printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, "
2119 "latency: %d, mmio: 0x%llx\n", dev->name,
2120 pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
2121 dev->pci_lat,
2122 (unsigned long long)pci_resource_start(pci_dev, 0));
2123
2124 pci_set_master(pci_dev);
2125 if (!pci_dma_supported(pci_dev, 0xffffffff)) {
2126 printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
2127 err = -EIO;
2128 goto fail_irq;
2129 }
2130
2131 err = request_irq(pci_dev->irq, cx23885_irq,
2132 IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
2133 if (err < 0) {
2134 printk(KERN_ERR "%s: can't get IRQ %d\n",
2135 dev->name, pci_dev->irq);
2136 goto fail_irq;
2137 }
2138
2139 switch (dev->board) {
2140 case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
2141 cx23885_irq_add_enable(dev, PCI_MSK_GPIO1 | PCI_MSK_GPIO0);
2142 break;
2143 case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF:
2144 cx23885_irq_add_enable(dev, PCI_MSK_GPIO0);
2145 break;
2146 }
2147
2148 /*
2149 * The CX2388[58] IR controller can start firing interrupts when
2150 * enabled, so these have to take place after the cx23885_irq() handler
2151 * is hooked up by the call to request_irq() above.
2152 */
2153 cx23885_ir_pci_int_enable(dev);
2154 cx23885_input_init(dev);
2155
2156 return 0;
2157
2158 fail_irq:
2159 cx23885_dev_unregister(dev);
2160 fail_unreg:
2161 v4l2_device_unregister(&dev->v4l2_dev);
2162 fail_free:
2163 kfree(dev);
2164 return err;
2165 }
2166
2167 static void cx23885_finidev(struct pci_dev *pci_dev)
2168 {
2169 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
2170 struct cx23885_dev *dev = to_cx23885(v4l2_dev);
2171
2172 cx23885_input_fini(dev);
2173 cx23885_ir_fini(dev);
2174
2175 cx23885_shutdown(dev);
2176
2177 pci_disable_device(pci_dev);
2178
2179 /* unregister stuff */
2180 free_irq(pci_dev->irq, dev);
2181
2182 cx23885_dev_unregister(dev);
2183 v4l2_device_unregister(v4l2_dev);
2184 kfree(dev);
2185 }
2186
2187 static struct pci_device_id cx23885_pci_tbl[] = {
2188 {
2189 /* CX23885 */
2190 .vendor = 0x14f1,
2191 .device = 0x8852,
2192 .subvendor = PCI_ANY_ID,
2193 .subdevice = PCI_ANY_ID,
2194 }, {
2195 /* CX23887 Rev 2 */
2196 .vendor = 0x14f1,
2197 .device = 0x8880,
2198 .subvendor = PCI_ANY_ID,
2199 .subdevice = PCI_ANY_ID,
2200 }, {
2201 /* --- end of list --- */
2202 }
2203 };
2204 MODULE_DEVICE_TABLE(pci, cx23885_pci_tbl);
2205
2206 static struct pci_driver cx23885_pci_driver = {
2207 .name = "cx23885",
2208 .id_table = cx23885_pci_tbl,
2209 .probe = cx23885_initdev,
2210 .remove = cx23885_finidev,
2211 /* TODO */
2212 .suspend = NULL,
2213 .resume = NULL,
2214 };
2215
2216 static int __init cx23885_init(void)
2217 {
2218 printk(KERN_INFO "cx23885 driver version %s loaded\n",
2219 CX23885_VERSION);
2220 return pci_register_driver(&cx23885_pci_driver);
2221 }
2222
2223 static void __exit cx23885_fini(void)
2224 {
2225 pci_unregister_driver(&cx23885_pci_driver);
2226 }
2227
2228 module_init(cx23885_init);
2229 module_exit(cx23885_fini);
Linux with added FPC-III support