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14#include "cx88.h"
15
16#include <linux/init.h>
17#include <linux/list.h>
18#include <linux/module.h>
19#include <linux/kernel.h>
20#include <linux/slab.h>
21#include <linux/kmod.h>
22#include <linux/sound.h>
23#include <linux/interrupt.h>
24#include <linux/pci.h>
25#include <linux/delay.h>
26#include <linux/videodev2.h>
27#include <linux/mutex.h>
28
29#include <media/v4l2-common.h>
30#include <media/v4l2-ioctl.h>
31
32MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
33MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
34MODULE_LICENSE("GPL v2");
35
36
37
38unsigned int cx88_core_debug;
39module_param_named(core_debug, cx88_core_debug, int, 0644);
40MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
41
42static unsigned int nicam;
43module_param(nicam, int, 0644);
44MODULE_PARM_DESC(nicam, "tv audio is nicam");
45
46static unsigned int nocomb;
47module_param(nocomb, int, 0644);
48MODULE_PARM_DESC(nocomb, "disable comb filter");
49
50#define dprintk0(fmt, arg...) \
51 printk(KERN_DEBUG pr_fmt("%s: core:" fmt), \
52 __func__, ##arg) \
53
54#define dprintk(level, fmt, arg...) do { \
55 if (cx88_core_debug >= level) \
56 printk(KERN_DEBUG pr_fmt("%s: core:" fmt), \
57 __func__, ##arg); \
58} while (0)
59
60static unsigned int cx88_devcount;
61static LIST_HEAD(cx88_devlist);
62static DEFINE_MUTEX(devlist);
63
64#define NO_SYNC_LINE (-1U)
65
66
67
68
69
70static __le32 *cx88_risc_field(__le32 *rp, struct scatterlist *sglist,
71 unsigned int offset, u32 sync_line,
72 unsigned int bpl, unsigned int padding,
73 unsigned int lines, unsigned int lpi, bool jump)
74{
75 struct scatterlist *sg;
76 unsigned int line, todo, sol;
77
78 if (jump) {
79 (*rp++) = cpu_to_le32(RISC_JUMP);
80 (*rp++) = 0;
81 }
82
83
84 if (sync_line != NO_SYNC_LINE)
85 *(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
86
87
88 sg = sglist;
89 for (line = 0; line < lines; line++) {
90 while (offset && offset >= sg_dma_len(sg)) {
91 offset -= sg_dma_len(sg);
92 sg = sg_next(sg);
93 }
94 if (lpi && line > 0 && !(line % lpi))
95 sol = RISC_SOL | RISC_IRQ1 | RISC_CNT_INC;
96 else
97 sol = RISC_SOL;
98 if (bpl <= sg_dma_len(sg) - offset) {
99
100 *(rp++) = cpu_to_le32(RISC_WRITE | sol |
101 RISC_EOL | bpl);
102 *(rp++) = cpu_to_le32(sg_dma_address(sg) + offset);
103 offset += bpl;
104 } else {
105
106 todo = bpl;
107 *(rp++) = cpu_to_le32(RISC_WRITE | sol |
108 (sg_dma_len(sg) - offset));
109 *(rp++) = cpu_to_le32(sg_dma_address(sg) + offset);
110 todo -= (sg_dma_len(sg) - offset);
111 offset = 0;
112 sg = sg_next(sg);
113 while (todo > sg_dma_len(sg)) {
114 *(rp++) = cpu_to_le32(RISC_WRITE |
115 sg_dma_len(sg));
116 *(rp++) = cpu_to_le32(sg_dma_address(sg));
117 todo -= sg_dma_len(sg);
118 sg = sg_next(sg);
119 }
120 *(rp++) = cpu_to_le32(RISC_WRITE | RISC_EOL | todo);
121 *(rp++) = cpu_to_le32(sg_dma_address(sg));
122 offset += todo;
123 }
124 offset += padding;
125 }
126
127 return rp;
128}
129
130int cx88_risc_buffer(struct pci_dev *pci, struct cx88_riscmem *risc,
131 struct scatterlist *sglist,
132 unsigned int top_offset, unsigned int bottom_offset,
133 unsigned int bpl, unsigned int padding, unsigned int lines)
134{
135 u32 instructions, fields;
136 __le32 *rp;
137
138 fields = 0;
139 if (top_offset != UNSET)
140 fields++;
141 if (bottom_offset != UNSET)
142 fields++;
143
144
145
146
147
148
149
150 instructions = fields * (1 + ((bpl + padding) * lines) /
151 PAGE_SIZE + lines);
152 instructions += 4;
153 risc->size = instructions * 8;
154 risc->dma = 0;
155 risc->cpu = pci_zalloc_consistent(pci, risc->size, &risc->dma);
156 if (!risc->cpu)
157 return -ENOMEM;
158
159
160 rp = risc->cpu;
161 if (top_offset != UNSET)
162 rp = cx88_risc_field(rp, sglist, top_offset, 0,
163 bpl, padding, lines, 0, true);
164 if (bottom_offset != UNSET)
165 rp = cx88_risc_field(rp, sglist, bottom_offset, 0x200,
166 bpl, padding, lines, 0,
167 top_offset == UNSET);
168
169
170 risc->jmp = rp;
171 WARN_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size);
172 return 0;
173}
174EXPORT_SYMBOL(cx88_risc_buffer);
175
176int cx88_risc_databuffer(struct pci_dev *pci, struct cx88_riscmem *risc,
177 struct scatterlist *sglist, unsigned int bpl,
178 unsigned int lines, unsigned int lpi)
179{
180 u32 instructions;
181 __le32 *rp;
182
183
184
185
186
187
188
189 instructions = 1 + (bpl * lines) / PAGE_SIZE + lines;
190 instructions += 3;
191 risc->size = instructions * 8;
192 risc->dma = 0;
193 risc->cpu = pci_zalloc_consistent(pci, risc->size, &risc->dma);
194 if (!risc->cpu)
195 return -ENOMEM;
196
197
198 rp = risc->cpu;
199 rp = cx88_risc_field(rp, sglist, 0, NO_SYNC_LINE, bpl, 0,
200 lines, lpi, !lpi);
201
202
203 risc->jmp = rp;
204 WARN_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size);
205 return 0;
206}
207EXPORT_SYMBOL(cx88_risc_databuffer);
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240const struct sram_channel cx88_sram_channels[] = {
241 [SRAM_CH21] = {
242 .name = "video y / packed",
243 .cmds_start = 0x180040,
244 .ctrl_start = 0x180400,
245 .cdt = 0x180400 + 64,
246 .fifo_start = 0x180c00,
247 .fifo_size = 0x002800,
248 .ptr1_reg = MO_DMA21_PTR1,
249 .ptr2_reg = MO_DMA21_PTR2,
250 .cnt1_reg = MO_DMA21_CNT1,
251 .cnt2_reg = MO_DMA21_CNT2,
252 },
253 [SRAM_CH22] = {
254 .name = "video u",
255 .cmds_start = 0x180080,
256 .ctrl_start = 0x1804a0,
257 .cdt = 0x1804a0 + 64,
258 .fifo_start = 0x183400,
259 .fifo_size = 0x000800,
260 .ptr1_reg = MO_DMA22_PTR1,
261 .ptr2_reg = MO_DMA22_PTR2,
262 .cnt1_reg = MO_DMA22_CNT1,
263 .cnt2_reg = MO_DMA22_CNT2,
264 },
265 [SRAM_CH23] = {
266 .name = "video v",
267 .cmds_start = 0x1800c0,
268 .ctrl_start = 0x180540,
269 .cdt = 0x180540 + 64,
270 .fifo_start = 0x183c00,
271 .fifo_size = 0x000800,
272 .ptr1_reg = MO_DMA23_PTR1,
273 .ptr2_reg = MO_DMA23_PTR2,
274 .cnt1_reg = MO_DMA23_CNT1,
275 .cnt2_reg = MO_DMA23_CNT2,
276 },
277 [SRAM_CH24] = {
278 .name = "vbi",
279 .cmds_start = 0x180100,
280 .ctrl_start = 0x1805e0,
281 .cdt = 0x1805e0 + 64,
282 .fifo_start = 0x184400,
283 .fifo_size = 0x001000,
284 .ptr1_reg = MO_DMA24_PTR1,
285 .ptr2_reg = MO_DMA24_PTR2,
286 .cnt1_reg = MO_DMA24_CNT1,
287 .cnt2_reg = MO_DMA24_CNT2,
288 },
289 [SRAM_CH25] = {
290 .name = "audio from",
291 .cmds_start = 0x180140,
292 .ctrl_start = 0x180680,
293 .cdt = 0x180680 + 64,
294 .fifo_start = 0x185400,
295 .fifo_size = 0x001000,
296 .ptr1_reg = MO_DMA25_PTR1,
297 .ptr2_reg = MO_DMA25_PTR2,
298 .cnt1_reg = MO_DMA25_CNT1,
299 .cnt2_reg = MO_DMA25_CNT2,
300 },
301 [SRAM_CH26] = {
302 .name = "audio to",
303 .cmds_start = 0x180180,
304 .ctrl_start = 0x180720,
305 .cdt = 0x180680 + 64,
306 .fifo_start = 0x185400,
307 .fifo_size = 0x001000,
308 .ptr1_reg = MO_DMA26_PTR1,
309 .ptr2_reg = MO_DMA26_PTR2,
310 .cnt1_reg = MO_DMA26_CNT1,
311 .cnt2_reg = MO_DMA26_CNT2,
312 },
313 [SRAM_CH28] = {
314 .name = "mpeg",
315 .cmds_start = 0x180200,
316 .ctrl_start = 0x1807C0,
317 .cdt = 0x1807C0 + 64,
318 .fifo_start = 0x186400,
319 .fifo_size = 0x001000,
320 .ptr1_reg = MO_DMA28_PTR1,
321 .ptr2_reg = MO_DMA28_PTR2,
322 .cnt1_reg = MO_DMA28_CNT1,
323 .cnt2_reg = MO_DMA28_CNT2,
324 },
325 [SRAM_CH27] = {
326 .name = "audio rds",
327 .cmds_start = 0x1801C0,
328 .ctrl_start = 0x180860,
329 .cdt = 0x180860 + 64,
330 .fifo_start = 0x187400,
331 .fifo_size = 0x000C00,
332 .ptr1_reg = MO_DMA27_PTR1,
333 .ptr2_reg = MO_DMA27_PTR2,
334 .cnt1_reg = MO_DMA27_CNT1,
335 .cnt2_reg = MO_DMA27_CNT2,
336 },
337};
338EXPORT_SYMBOL(cx88_sram_channels);
339
340int cx88_sram_channel_setup(struct cx88_core *core,
341 const struct sram_channel *ch,
342 unsigned int bpl, u32 risc)
343{
344 unsigned int i, lines;
345 u32 cdt;
346
347 bpl = (bpl + 7) & ~7;
348 cdt = ch->cdt;
349 lines = ch->fifo_size / bpl;
350 if (lines > 6)
351 lines = 6;
352 WARN_ON(lines < 2);
353
354
355 for (i = 0; i < lines; i++)
356 cx_write(cdt + 16 * i, ch->fifo_start + bpl * i);
357
358
359 cx_write(ch->cmds_start + 0, risc);
360 cx_write(ch->cmds_start + 4, cdt);
361 cx_write(ch->cmds_start + 8, (lines * 16) >> 3);
362 cx_write(ch->cmds_start + 12, ch->ctrl_start);
363 cx_write(ch->cmds_start + 16, 64 >> 2);
364 for (i = 20; i < 64; i += 4)
365 cx_write(ch->cmds_start + i, 0);
366
367
368 cx_write(ch->ptr1_reg, ch->fifo_start);
369 cx_write(ch->ptr2_reg, cdt);
370 cx_write(ch->cnt1_reg, (bpl >> 3) - 1);
371 cx_write(ch->cnt2_reg, (lines * 16) >> 3);
372
373 dprintk(2, "sram setup %s: bpl=%d lines=%d\n", ch->name, bpl, lines);
374 return 0;
375}
376EXPORT_SYMBOL(cx88_sram_channel_setup);
377
378
379
380
381static int cx88_risc_decode(u32 risc)
382{
383 static const char * const instr[16] = {
384 [RISC_SYNC >> 28] = "sync",
385 [RISC_WRITE >> 28] = "write",
386 [RISC_WRITEC >> 28] = "writec",
387 [RISC_READ >> 28] = "read",
388 [RISC_READC >> 28] = "readc",
389 [RISC_JUMP >> 28] = "jump",
390 [RISC_SKIP >> 28] = "skip",
391 [RISC_WRITERM >> 28] = "writerm",
392 [RISC_WRITECM >> 28] = "writecm",
393 [RISC_WRITECR >> 28] = "writecr",
394 };
395 static int const incr[16] = {
396 [RISC_WRITE >> 28] = 2,
397 [RISC_JUMP >> 28] = 2,
398 [RISC_WRITERM >> 28] = 3,
399 [RISC_WRITECM >> 28] = 3,
400 [RISC_WRITECR >> 28] = 4,
401 };
402 static const char * const bits[] = {
403 "12", "13", "14", "resync",
404 "cnt0", "cnt1", "18", "19",
405 "20", "21", "22", "23",
406 "irq1", "irq2", "eol", "sol",
407 };
408 int i;
409
410 dprintk0("0x%08x [ %s", risc,
411 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
412 for (i = ARRAY_SIZE(bits) - 1; i >= 0; i--)
413 if (risc & (1 << (i + 12)))
414 pr_cont(" %s", bits[i]);
415 pr_cont(" count=%d ]\n", risc & 0xfff);
416 return incr[risc >> 28] ? incr[risc >> 28] : 1;
417}
418
419void cx88_sram_channel_dump(struct cx88_core *core,
420 const struct sram_channel *ch)
421{
422 static const char * const name[] = {
423 "initial risc",
424 "cdt base",
425 "cdt size",
426 "iq base",
427 "iq size",
428 "risc pc",
429 "iq wr ptr",
430 "iq rd ptr",
431 "cdt current",
432 "pci target",
433 "line / byte",
434 };
435 u32 risc;
436 unsigned int i, j, n;
437
438 dprintk0("%s - dma channel status dump\n", ch->name);
439 for (i = 0; i < ARRAY_SIZE(name); i++)
440 dprintk0(" cmds: %-12s: 0x%08x\n",
441 name[i], cx_read(ch->cmds_start + 4 * i));
442 for (n = 1, i = 0; i < 4; i++) {
443 risc = cx_read(ch->cmds_start + 4 * (i + 11));
444 pr_cont(" risc%d: ", i);
445 if (--n)
446 pr_cont("0x%08x [ arg #%d ]\n", risc, n);
447 else
448 n = cx88_risc_decode(risc);
449 }
450 for (i = 0; i < 16; i += n) {
451 risc = cx_read(ch->ctrl_start + 4 * i);
452 dprintk0(" iq %x: ", i);
453 n = cx88_risc_decode(risc);
454 for (j = 1; j < n; j++) {
455 risc = cx_read(ch->ctrl_start + 4 * (i + j));
456 pr_cont(" iq %x: 0x%08x [ arg #%d ]\n",
457 i + j, risc, j);
458 }
459 }
460
461 dprintk0("fifo: 0x%08x -> 0x%x\n",
462 ch->fifo_start, ch->fifo_start + ch->fifo_size);
463 dprintk0("ctrl: 0x%08x -> 0x%x\n",
464 ch->ctrl_start, ch->ctrl_start + 6 * 16);
465 dprintk0(" ptr1_reg: 0x%08x\n", cx_read(ch->ptr1_reg));
466 dprintk0(" ptr2_reg: 0x%08x\n", cx_read(ch->ptr2_reg));
467 dprintk0(" cnt1_reg: 0x%08x\n", cx_read(ch->cnt1_reg));
468 dprintk0(" cnt2_reg: 0x%08x\n", cx_read(ch->cnt2_reg));
469}
470EXPORT_SYMBOL(cx88_sram_channel_dump);
471
472static const char *cx88_pci_irqs[32] = {
473 "vid", "aud", "ts", "vip", "hst", "5", "6", "tm1",
474 "src_dma", "dst_dma", "risc_rd_err", "risc_wr_err",
475 "brdg_err", "src_dma_err", "dst_dma_err", "ipb_dma_err",
476 "i2c", "i2c_rack", "ir_smp", "gpio0", "gpio1"
477};
478
479void cx88_print_irqbits(const char *tag, const char *strings[],
480 int len, u32 bits, u32 mask)
481{
482 unsigned int i;
483
484 dprintk0("%s [0x%x]", tag, bits);
485 for (i = 0; i < len; i++) {
486 if (!(bits & (1 << i)))
487 continue;
488 if (strings[i])
489 pr_cont(" %s", strings[i]);
490 else
491 pr_cont(" %d", i);
492 if (!(mask & (1 << i)))
493 continue;
494 pr_cont("*");
495 }
496 pr_cont("\n");
497}
498EXPORT_SYMBOL(cx88_print_irqbits);
499
500
501
502int cx88_core_irq(struct cx88_core *core, u32 status)
503{
504 int handled = 0;
505
506 if (status & PCI_INT_IR_SMPINT) {
507 cx88_ir_irq(core);
508 handled++;
509 }
510 if (!handled)
511 cx88_print_irqbits("irq pci",
512 cx88_pci_irqs, ARRAY_SIZE(cx88_pci_irqs),
513 status, core->pci_irqmask);
514 return handled;
515}
516EXPORT_SYMBOL(cx88_core_irq);
517
518void cx88_wakeup(struct cx88_core *core,
519 struct cx88_dmaqueue *q, u32 count)
520{
521 struct cx88_buffer *buf;
522
523 buf = list_entry(q->active.next,
524 struct cx88_buffer, list);
525 buf->vb.vb2_buf.timestamp = ktime_get_ns();
526 buf->vb.field = core->field;
527 buf->vb.sequence = q->count++;
528 list_del(&buf->list);
529 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
530}
531EXPORT_SYMBOL(cx88_wakeup);
532
533void cx88_shutdown(struct cx88_core *core)
534{
535
536 cx_write(MO_DEV_CNTRL2, 0);
537
538
539 cx_write(MO_VID_DMACNTRL, 0x0);
540 cx_write(MO_AUD_DMACNTRL, 0x0);
541 cx_write(MO_TS_DMACNTRL, 0x0);
542 cx_write(MO_VIP_DMACNTRL, 0x0);
543 cx_write(MO_GPHST_DMACNTRL, 0x0);
544
545
546 cx_write(MO_PCI_INTMSK, 0x0);
547 cx_write(MO_VID_INTMSK, 0x0);
548 cx_write(MO_AUD_INTMSK, 0x0);
549 cx_write(MO_TS_INTMSK, 0x0);
550 cx_write(MO_VIP_INTMSK, 0x0);
551 cx_write(MO_GPHST_INTMSK, 0x0);
552
553
554 cx_write(VID_CAPTURE_CONTROL, 0);
555}
556EXPORT_SYMBOL(cx88_shutdown);
557
558int cx88_reset(struct cx88_core *core)
559{
560 dprintk(1, "");
561 cx88_shutdown(core);
562
563
564 cx_write(MO_VID_INTSTAT, 0xFFFFFFFF);
565 cx_write(MO_PCI_INTSTAT, 0xFFFFFFFF);
566 cx_write(MO_INT1_STAT, 0xFFFFFFFF);
567
568
569 msleep(100);
570
571
572 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH21],
573 720 * 4, 0);
574 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH22], 128, 0);
575 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH23], 128, 0);
576 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH24], 128, 0);
577 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], 128, 0);
578 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], 128, 0);
579 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
580 188 * 4, 0);
581 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH27], 128, 0);
582
583
584 cx_write(MO_INPUT_FORMAT, ((1 << 13) |
585 (1 << 12) |
586 (1 << 11) |
587 (0 << 10) |
588 (0 << 9) |
589 (7)));
590
591
592 cx_andor(MO_COLOR_CTRL, 0x4000, 0x4000);
593
594
595 cx_write(MO_PDMA_STHRSH, 0x0807);
596 cx_write(MO_PDMA_DTHRSH, 0x0807);
597
598
599 cx_write(MO_AGC_SYNC_TIP1, 0x0380000F);
600 cx_write(MO_AGC_BACK_VBI, 0x00E00555);
601
602 cx_write(MO_VID_INTSTAT, 0xFFFFFFFF);
603 cx_write(MO_PCI_INTSTAT, 0xFFFFFFFF);
604 cx_write(MO_INT1_STAT, 0xFFFFFFFF);
605
606
607 cx_write(MO_SRST_IO, 0);
608 usleep_range(10000, 20000);
609 cx_write(MO_SRST_IO, 1);
610
611 return 0;
612}
613EXPORT_SYMBOL(cx88_reset);
614
615
616
617static inline unsigned int norm_swidth(v4l2_std_id norm)
618{
619 return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922;
620}
621
622static inline unsigned int norm_hdelay(v4l2_std_id norm)
623{
624 return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 135 : 186;
625}
626
627static inline unsigned int norm_vdelay(v4l2_std_id norm)
628{
629 return (norm & V4L2_STD_625_50) ? 0x24 : 0x18;
630}
631
632static inline unsigned int norm_fsc8(v4l2_std_id norm)
633{
634 if (norm & V4L2_STD_PAL_M)
635 return 28604892;
636
637 if (norm & (V4L2_STD_PAL_Nc))
638 return 28656448;
639
640 if (norm & V4L2_STD_NTSC)
641 return 28636360;
642
643
644
645
646
647
648
649
650 return 35468950;
651}
652
653static inline unsigned int norm_htotal(v4l2_std_id norm)
654{
655 unsigned int fsc4 = norm_fsc8(norm) / 2;
656
657
658 return (norm & V4L2_STD_625_50) ?
659 ((fsc4 + 312) / 625 + 12) / 25 :
660 ((fsc4 + 262) / 525 * 1001 + 15000) / 30000;
661}
662
663static inline unsigned int norm_vbipack(v4l2_std_id norm)
664{
665 return (norm & V4L2_STD_625_50) ? 511 : 400;
666}
667
668int cx88_set_scale(struct cx88_core *core, unsigned int width,
669 unsigned int height, enum v4l2_field field)
670{
671 unsigned int swidth = norm_swidth(core->tvnorm);
672 unsigned int sheight = norm_maxh(core->tvnorm);
673 u32 value;
674
675 dprintk(1, "set_scale: %dx%d [%s%s,%s]\n", width, height,
676 V4L2_FIELD_HAS_TOP(field) ? "T" : "",
677 V4L2_FIELD_HAS_BOTTOM(field) ? "B" : "",
678 v4l2_norm_to_name(core->tvnorm));
679 if (!V4L2_FIELD_HAS_BOTH(field))
680 height *= 2;
681
682
683 value = (width * norm_hdelay(core->tvnorm)) / swidth;
684 value &= 0x3fe;
685 cx_write(MO_HDELAY_EVEN, value);
686 cx_write(MO_HDELAY_ODD, value);
687 dprintk(1, "set_scale: hdelay 0x%04x (width %d)\n", value, swidth);
688
689 value = (swidth * 4096 / width) - 4096;
690 cx_write(MO_HSCALE_EVEN, value);
691 cx_write(MO_HSCALE_ODD, value);
692 dprintk(1, "set_scale: hscale 0x%04x\n", value);
693
694 cx_write(MO_HACTIVE_EVEN, width);
695 cx_write(MO_HACTIVE_ODD, width);
696 dprintk(1, "set_scale: hactive 0x%04x\n", width);
697
698
699 cx_write(MO_VDELAY_EVEN, norm_vdelay(core->tvnorm));
700 cx_write(MO_VDELAY_ODD, norm_vdelay(core->tvnorm));
701 dprintk(1, "set_scale: vdelay 0x%04x\n", norm_vdelay(core->tvnorm));
702
703 value = (0x10000 - (sheight * 512 / height - 512)) & 0x1fff;
704 cx_write(MO_VSCALE_EVEN, value);
705 cx_write(MO_VSCALE_ODD, value);
706 dprintk(1, "set_scale: vscale 0x%04x\n", value);
707
708 cx_write(MO_VACTIVE_EVEN, sheight);
709 cx_write(MO_VACTIVE_ODD, sheight);
710 dprintk(1, "set_scale: vactive 0x%04x\n", sheight);
711
712
713 value = 0;
714 value |= (1 << 19);
715 if (core->tvnorm & V4L2_STD_SECAM) {
716 value |= (1 << 15);
717 value |= (1 << 16);
718 }
719 if (INPUT(core->input).type == CX88_VMUX_SVIDEO)
720 value |= (1 << 13) | (1 << 5);
721 if (field == V4L2_FIELD_INTERLACED)
722 value |= (1 << 3);
723 if (width < 385)
724 value |= (1 << 0);
725 if (width < 193)
726 value |= (1 << 1);
727 if (nocomb)
728 value |= (3 << 5);
729
730 cx_andor(MO_FILTER_EVEN, 0x7ffc7f, value);
731 cx_andor(MO_FILTER_ODD, 0x7ffc7f, value);
732 dprintk(1, "set_scale: filter 0x%04x\n", value);
733
734 return 0;
735}
736EXPORT_SYMBOL(cx88_set_scale);
737
738static const u32 xtal = 28636363;
739
740static int set_pll(struct cx88_core *core, int prescale, u32 ofreq)
741{
742 static const u32 pre[] = { 0, 0, 0, 3, 2, 1 };
743 u64 pll;
744 u32 reg;
745 int i;
746
747 if (prescale < 2)
748 prescale = 2;
749 if (prescale > 5)
750 prescale = 5;
751
752 pll = ofreq * 8 * prescale * (u64)(1 << 20);
753 do_div(pll, xtal);
754 reg = (pll & 0x3ffffff) | (pre[prescale] << 26);
755 if (((reg >> 20) & 0x3f) < 14) {
756 pr_err("pll out of range\n");
757 return -1;
758 }
759
760 dprintk(1, "set_pll: MO_PLL_REG 0x%08x [old=0x%08x,freq=%d]\n",
761 reg, cx_read(MO_PLL_REG), ofreq);
762 cx_write(MO_PLL_REG, reg);
763 for (i = 0; i < 100; i++) {
764 reg = cx_read(MO_DEVICE_STATUS);
765 if (reg & (1 << 2)) {
766 dprintk(1, "pll locked [pre=%d,ofreq=%d]\n",
767 prescale, ofreq);
768 return 0;
769 }
770 dprintk(1, "pll not locked yet, waiting ...\n");
771 usleep_range(10000, 20000);
772 }
773 dprintk(1, "pll NOT locked [pre=%d,ofreq=%d]\n", prescale, ofreq);
774 return -1;
775}
776
777int cx88_start_audio_dma(struct cx88_core *core)
778{
779
780 int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4;
781
782 int rds_bpl = cx88_sram_channels[SRAM_CH27].fifo_size / AUD_RDS_LINES;
783
784
785 if (cx_read(MO_AUD_DMACNTRL) & 0x10)
786 return 0;
787
788
789 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], bpl, 0);
790 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], bpl, 0);
791 cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH27],
792 rds_bpl, 0);
793
794 cx_write(MO_AUDD_LNGTH, bpl);
795 cx_write(MO_AUDR_LNGTH, rds_bpl);
796
797
798 cx_write(MO_AUD_DMACNTRL, 0x0007);
799
800 return 0;
801}
802
803int cx88_stop_audio_dma(struct cx88_core *core)
804{
805
806 if (cx_read(MO_AUD_DMACNTRL) & 0x10)
807 return 0;
808
809
810 cx_write(MO_AUD_DMACNTRL, 0x0000);
811
812 return 0;
813}
814
815static int set_tvaudio(struct cx88_core *core)
816{
817 v4l2_std_id norm = core->tvnorm;
818
819 if (INPUT(core->input).type != CX88_VMUX_TELEVISION &&
820 INPUT(core->input).type != CX88_VMUX_CABLE)
821 return 0;
822
823 if (V4L2_STD_PAL_BG & norm) {
824 core->tvaudio = WW_BG;
825
826 } else if (V4L2_STD_PAL_DK & norm) {
827 core->tvaudio = WW_DK;
828
829 } else if (V4L2_STD_PAL_I & norm) {
830 core->tvaudio = WW_I;
831
832 } else if (V4L2_STD_SECAM_L & norm) {
833 core->tvaudio = WW_L;
834
835 } else if ((V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H) &
836 norm) {
837 core->tvaudio = WW_BG;
838
839 } else if (V4L2_STD_SECAM_DK & norm) {
840 core->tvaudio = WW_DK;
841
842 } else if ((V4L2_STD_NTSC_M & norm) ||
843 (V4L2_STD_PAL_M & norm)) {
844 core->tvaudio = WW_BTSC;
845
846 } else if (V4L2_STD_NTSC_M_JP & norm) {
847 core->tvaudio = WW_EIAJ;
848
849 } else {
850 pr_info("tvaudio support needs work for this tv norm [%s], sorry\n",
851 v4l2_norm_to_name(core->tvnorm));
852 core->tvaudio = WW_NONE;
853 return 0;
854 }
855
856 cx_andor(MO_AFECFG_IO, 0x1f, 0x0);
857 cx88_set_tvaudio(core);
858
859
860
861
862
863
864 cx88_start_audio_dma(core);
865 return 0;
866}
867
868int cx88_set_tvnorm(struct cx88_core *core, v4l2_std_id norm)
869{
870 u32 fsc8;
871 u32 adc_clock;
872 u32 vdec_clock;
873 u32 step_db, step_dr;
874 u64 tmp64;
875 u32 bdelay, agcdelay, htotal;
876 u32 cxiformat, cxoformat;
877
878 if (norm == core->tvnorm)
879 return 0;
880 if (core->v4ldev && (vb2_is_busy(&core->v4ldev->vb2_vidq) ||
881 vb2_is_busy(&core->v4ldev->vb2_vbiq)))
882 return -EBUSY;
883 if (core->dvbdev && vb2_is_busy(&core->dvbdev->vb2_mpegq))
884 return -EBUSY;
885 core->tvnorm = norm;
886 fsc8 = norm_fsc8(norm);
887 adc_clock = xtal;
888 vdec_clock = fsc8;
889 step_db = fsc8;
890 step_dr = fsc8;
891
892 if (norm & V4L2_STD_NTSC_M_JP) {
893 cxiformat = VideoFormatNTSCJapan;
894 cxoformat = 0x181f0008;
895 } else if (norm & V4L2_STD_NTSC_443) {
896 cxiformat = VideoFormatNTSC443;
897 cxoformat = 0x181f0008;
898 } else if (norm & V4L2_STD_PAL_M) {
899 cxiformat = VideoFormatPALM;
900 cxoformat = 0x1c1f0008;
901 } else if (norm & V4L2_STD_PAL_N) {
902 cxiformat = VideoFormatPALN;
903 cxoformat = 0x1c1f0008;
904 } else if (norm & V4L2_STD_PAL_Nc) {
905 cxiformat = VideoFormatPALNC;
906 cxoformat = 0x1c1f0008;
907 } else if (norm & V4L2_STD_PAL_60) {
908 cxiformat = VideoFormatPAL60;
909 cxoformat = 0x181f0008;
910 } else if (norm & V4L2_STD_NTSC) {
911 cxiformat = VideoFormatNTSC;
912 cxoformat = 0x181f0008;
913 } else if (norm & V4L2_STD_SECAM) {
914 step_db = 4250000 * 8;
915 step_dr = 4406250 * 8;
916
917 cxiformat = VideoFormatSECAM;
918 cxoformat = 0x181f0008;
919 } else {
920 cxiformat = VideoFormatPAL;
921 cxoformat = 0x181f0008;
922 }
923
924 dprintk(1, "set_tvnorm: \"%s\" fsc8=%d adc=%d vdec=%d db/dr=%d/%d\n",
925 v4l2_norm_to_name(core->tvnorm), fsc8, adc_clock, vdec_clock,
926 step_db, step_dr);
927 set_pll(core, 2, vdec_clock);
928
929 dprintk(1, "set_tvnorm: MO_INPUT_FORMAT 0x%08x [old=0x%08x]\n",
930 cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
931
932
933
934
935 cx_andor(MO_INPUT_FORMAT, 0x40f,
936 norm & V4L2_STD_SECAM ? cxiformat : cxiformat | 0x400);
937
938
939 dprintk(1, "set_tvnorm: MO_OUTPUT_FORMAT 0x%08x [old=0x%08x]\n",
940 cxoformat, cx_read(MO_OUTPUT_FORMAT));
941 cx_write(MO_OUTPUT_FORMAT, cxoformat);
942
943
944 tmp64 = adc_clock * (u64)(1 << 17);
945 do_div(tmp64, vdec_clock);
946 dprintk(1, "set_tvnorm: MO_SCONV_REG 0x%08x [old=0x%08x]\n",
947 (u32)tmp64, cx_read(MO_SCONV_REG));
948 cx_write(MO_SCONV_REG, (u32)tmp64);
949
950
951 tmp64 = step_db * (u64)(1 << 22);
952 do_div(tmp64, vdec_clock);
953 dprintk(1, "set_tvnorm: MO_SUB_STEP 0x%08x [old=0x%08x]\n",
954 (u32)tmp64, cx_read(MO_SUB_STEP));
955 cx_write(MO_SUB_STEP, (u32)tmp64);
956
957
958 tmp64 = step_dr * (u64)(1 << 22);
959 do_div(tmp64, vdec_clock);
960 dprintk(1, "set_tvnorm: MO_SUB_STEP_DR 0x%08x [old=0x%08x]\n",
961 (u32)tmp64, cx_read(MO_SUB_STEP_DR));
962 cx_write(MO_SUB_STEP_DR, (u32)tmp64);
963
964
965 bdelay = vdec_clock * 65 / 20000000 + 21;
966 agcdelay = vdec_clock * 68 / 20000000 + 15;
967 dprintk(1,
968 "set_tvnorm: MO_AGC_BURST 0x%08x [old=0x%08x,bdelay=%d,agcdelay=%d]\n",
969 (bdelay << 8) | agcdelay, cx_read(MO_AGC_BURST),
970 bdelay, agcdelay);
971 cx_write(MO_AGC_BURST, (bdelay << 8) | agcdelay);
972
973
974 tmp64 = norm_htotal(norm) * (u64)vdec_clock;
975 do_div(tmp64, fsc8);
976 htotal = (u32)tmp64;
977 dprintk(1,
978 "set_tvnorm: MO_HTOTAL 0x%08x [old=0x%08x,htotal=%d]\n",
979 htotal, cx_read(MO_HTOTAL), (u32)tmp64);
980 cx_andor(MO_HTOTAL, 0x07ff, htotal);
981
982
983
984 cx_write(MO_VBI_PACKET, (10 << 11) | norm_vbipack(norm));
985
986
987 cx88_set_scale(core, 320, 240, V4L2_FIELD_INTERLACED);
988
989
990 set_tvaudio(core);
991
992
993 call_all(core, video, s_std, norm);
994
995
996
997
998
999 v4l2_ctrl_grab(core->chroma_agc, cxiformat == VideoFormatSECAM);
1000
1001
1002 return 0;
1003}
1004EXPORT_SYMBOL(cx88_set_tvnorm);
1005
1006
1007
1008void cx88_vdev_init(struct cx88_core *core,
1009 struct pci_dev *pci,
1010 struct video_device *vfd,
1011 const struct video_device *template_,
1012 const char *type)
1013{
1014 *vfd = *template_;
1015
1016
1017
1018
1019
1020
1021
1022 vfd->v4l2_dev = &core->v4l2_dev;
1023 vfd->dev_parent = &pci->dev;
1024 vfd->release = video_device_release_empty;
1025 vfd->lock = &core->lock;
1026 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
1027 core->name, type, core->board.name);
1028}
1029EXPORT_SYMBOL(cx88_vdev_init);
1030
1031struct cx88_core *cx88_core_get(struct pci_dev *pci)
1032{
1033 struct cx88_core *core;
1034
1035 mutex_lock(&devlist);
1036 list_for_each_entry(core, &cx88_devlist, devlist) {
1037 if (pci->bus->number != core->pci_bus)
1038 continue;
1039 if (PCI_SLOT(pci->devfn) != core->pci_slot)
1040 continue;
1041
1042 if (cx88_get_resources(core, pci) != 0) {
1043 mutex_unlock(&devlist);
1044 return NULL;
1045 }
1046 refcount_inc(&core->refcount);
1047 mutex_unlock(&devlist);
1048 return core;
1049 }
1050
1051 core = cx88_core_create(pci, cx88_devcount);
1052 if (core) {
1053 cx88_devcount++;
1054 list_add_tail(&core->devlist, &cx88_devlist);
1055 }
1056
1057 mutex_unlock(&devlist);
1058 return core;
1059}
1060EXPORT_SYMBOL(cx88_core_get);
1061
1062void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
1063{
1064 release_mem_region(pci_resource_start(pci, 0),
1065 pci_resource_len(pci, 0));
1066
1067 if (!refcount_dec_and_test(&core->refcount))
1068 return;
1069
1070 mutex_lock(&devlist);
1071 cx88_ir_fini(core);
1072 if (core->i2c_rc == 0) {
1073 i2c_unregister_device(core->i2c_rtc);
1074 i2c_del_adapter(&core->i2c_adap);
1075 }
1076 list_del(&core->devlist);
1077 iounmap(core->lmmio);
1078 cx88_devcount--;
1079 mutex_unlock(&devlist);
1080 v4l2_ctrl_handler_free(&core->video_hdl);
1081 v4l2_ctrl_handler_free(&core->audio_hdl);
1082 v4l2_device_unregister(&core->v4l2_dev);
1083 kfree(core);
1084}
1085EXPORT_SYMBOL(cx88_core_put);
1086
