1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * ddbridge-core.c: Digital Devices bridge core functions
4 *
5 * Copyright (C) 2010-2017 Digital Devices GmbH
6 * Marcus Metzler <mocm@metzlerbros.de>
7 * Ralph Metzler <rjkm@metzlerbros.de>
8 */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/interrupt.h>
13 #include <linux/delay.h>
14 #include <linux/slab.h>
15 #include <linux/poll.h>
16 #include <linux/io.h>
17 #include <linux/pci.h>
18 #include <linux/pci_ids.h>
19 #include <linux/timer.h>
20 #include <linux/i2c.h>
21 #include <linux/swab.h>
22 #include <linux/vmalloc.h>
23
24 #include "ddbridge.h"
25 #include "ddbridge-i2c.h"
26 #include "ddbridge-regs.h"
27 #include "ddbridge-max.h"
28 #include "ddbridge-ci.h"
29 #include "ddbridge-io.h"
30
31 #include "tda18271c2dd.h"
32 #include "stv6110x.h"
33 #include "stv090x.h"
34 #include "lnbh24.h"
35 #include "drxk.h"
36 #include "stv0367.h"
37 #include "stv0367_priv.h"
38 #include "cxd2841er.h"
39 #include "tda18212.h"
40 #include "stv0910.h"
41 #include "stv6111.h"
42 #include "lnbh25.h"
43 #include "cxd2099.h"
44 #include "ddbridge-dummy-fe.h"
45
46 /****************************************************************************/
47
48 #define DDB_MAX_ADAPTER 64
49
50 /****************************************************************************/
51
52 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
53
54 static int adapter_alloc;
55 module_param(adapter_alloc, int, 0444);
56 MODULE_PARM_DESC(adapter_alloc,
57 "0-one adapter per io, 1-one per tab with io, 2-one per tab, 3-one for all");
58
59 static int ci_bitrate = 70000;
60 module_param(ci_bitrate, int, 0444);
61 MODULE_PARM_DESC(ci_bitrate, " Bitrate in KHz for output to CI.");
62
63 static int ts_loop = -1;
64 module_param(ts_loop, int, 0444);
65 MODULE_PARM_DESC(ts_loop, "TS in/out test loop on port ts_loop");
66
67 static int xo2_speed = 2;
68 module_param(xo2_speed, int, 0444);
69 MODULE_PARM_DESC(xo2_speed, "default transfer speed for xo2 based duoflex, 0=55,1=75,2=90,3=104 MBit/s, default=2, use attribute to change for individual cards");
70
71 #ifdef __arm__
72 static int alt_dma = 1;
73 #else
74 static int alt_dma;
75 #endif
76 module_param(alt_dma, int, 0444);
77 MODULE_PARM_DESC(alt_dma, "use alternative DMA buffer handling");
78
79 static int no_init;
80 module_param(no_init, int, 0444);
81 MODULE_PARM_DESC(no_init, "do not initialize most devices");
82
83 static int stv0910_single;
84 module_param(stv0910_single, int, 0444);
85 MODULE_PARM_DESC(stv0910_single, "use stv0910 cards as single demods");
86
87 static int dma_buf_num = 8;
88 module_param(dma_buf_num, int, 0444);
89 MODULE_PARM_DESC(dma_buf_num, "Number of DMA buffers, possible values: 8-32");
90
91 static int dma_buf_size = 21;
92 module_param(dma_buf_size, int, 0444);
93 MODULE_PARM_DESC(dma_buf_size,
94 "DMA buffer size as multiple of 128*47, possible values: 1-43");
95
96 static int dummy_tuner;
97 module_param(dummy_tuner, int, 0444);
98 MODULE_PARM_DESC(dummy_tuner,
99 "attach dummy tuner to port 0 on Octopus V3 or Octopus Mini cards");
100
101 /****************************************************************************/
102
103 static DEFINE_MUTEX(redirect_lock);
104
105 static struct workqueue_struct *ddb_wq;
106
107 static struct ddb *ddbs[DDB_MAX_ADAPTER];
108
109 /****************************************************************************/
110 /****************************************************************************/
111 /****************************************************************************/
112
ddb_irq_set(struct ddb * dev,u32 link,u32 nr,void (* handler)(void *),void * data)113 struct ddb_irq *ddb_irq_set(struct ddb *dev, u32 link, u32 nr,
114 void (*handler)(void *), void *data)
115 {
116 struct ddb_irq *irq = &dev->link[link].irq[nr];
117
118 irq->handler = handler;
119 irq->data = data;
120 return irq;
121 }
122
ddb_set_dma_table(struct ddb_io * io)123 static void ddb_set_dma_table(struct ddb_io *io)
124 {
125 struct ddb *dev = io->port->dev;
126 struct ddb_dma *dma = io->dma;
127 u32 i;
128 u64 mem;
129
130 if (!dma)
131 return;
132 for (i = 0; i < dma->num; i++) {
133 mem = dma->pbuf[i];
134 ddbwritel(dev, mem & 0xffffffff, dma->bufregs + i * 8);
135 ddbwritel(dev, mem >> 32, dma->bufregs + i * 8 + 4);
136 }
137 dma->bufval = ((dma->div & 0x0f) << 16) |
138 ((dma->num & 0x1f) << 11) |
139 ((dma->size >> 7) & 0x7ff);
140 }
141
ddb_set_dma_tables(struct ddb * dev)142 static void ddb_set_dma_tables(struct ddb *dev)
143 {
144 u32 i;
145
146 for (i = 0; i < DDB_MAX_PORT; i++) {
147 if (dev->port[i].input[0])
148 ddb_set_dma_table(dev->port[i].input[0]);
149 if (dev->port[i].input[1])
150 ddb_set_dma_table(dev->port[i].input[1]);
151 if (dev->port[i].output)
152 ddb_set_dma_table(dev->port[i].output);
153 }
154 }
155
156 /****************************************************************************/
157 /****************************************************************************/
158 /****************************************************************************/
159
ddb_redirect_dma(struct ddb * dev,struct ddb_dma * sdma,struct ddb_dma * ddma)160 static void ddb_redirect_dma(struct ddb *dev,
161 struct ddb_dma *sdma,
162 struct ddb_dma *ddma)
163 {
164 u32 i, base;
165 u64 mem;
166
167 sdma->bufval = ddma->bufval;
168 base = sdma->bufregs;
169 for (i = 0; i < ddma->num; i++) {
170 mem = ddma->pbuf[i];
171 ddbwritel(dev, mem & 0xffffffff, base + i * 8);
172 ddbwritel(dev, mem >> 32, base + i * 8 + 4);
173 }
174 }
175
ddb_unredirect(struct ddb_port * port)176 static int ddb_unredirect(struct ddb_port *port)
177 {
178 struct ddb_input *oredi, *iredi = NULL;
179 struct ddb_output *iredo = NULL;
180
181 /* dev_info(port->dev->dev,
182 * "unredirect %d.%d\n", port->dev->nr, port->nr);
183 */
184 mutex_lock(&redirect_lock);
185 if (port->output->dma->running) {
186 mutex_unlock(&redirect_lock);
187 return -EBUSY;
188 }
189 oredi = port->output->redi;
190 if (!oredi)
191 goto done;
192 if (port->input[0]) {
193 iredi = port->input[0]->redi;
194 iredo = port->input[0]->redo;
195
196 if (iredo) {
197 iredo->port->output->redi = oredi;
198 if (iredo->port->input[0]) {
199 iredo->port->input[0]->redi = iredi;
200 ddb_redirect_dma(oredi->port->dev,
201 oredi->dma, iredo->dma);
202 }
203 port->input[0]->redo = NULL;
204 ddb_set_dma_table(port->input[0]);
205 }
206 oredi->redi = iredi;
207 port->input[0]->redi = NULL;
208 }
209 oredi->redo = NULL;
210 port->output->redi = NULL;
211
212 ddb_set_dma_table(oredi);
213 done:
214 mutex_unlock(&redirect_lock);
215 return 0;
216 }
217
ddb_redirect(u32 i,u32 p)218 static int ddb_redirect(u32 i, u32 p)
219 {
220 struct ddb *idev = ddbs[(i >> 4) & 0x3f];
221 struct ddb_input *input, *input2;
222 struct ddb *pdev = ddbs[(p >> 4) & 0x3f];
223 struct ddb_port *port;
224
225 if (!idev || !pdev)
226 return -EINVAL;
227 if (!idev->has_dma || !pdev->has_dma)
228 return -EINVAL;
229
230 port = &pdev->port[p & 0x0f];
231 if (!port->output)
232 return -EINVAL;
233 if (ddb_unredirect(port))
234 return -EBUSY;
235
236 if (i == 8)
237 return 0;
238
239 input = &idev->input[i & 7];
240 if (!input)
241 return -EINVAL;
242
243 mutex_lock(&redirect_lock);
244 if (port->output->dma->running || input->dma->running) {
245 mutex_unlock(&redirect_lock);
246 return -EBUSY;
247 }
248 input2 = port->input[0];
249 if (input2) {
250 if (input->redi) {
251 input2->redi = input->redi;
252 input->redi = NULL;
253 } else {
254 input2->redi = input;
255 }
256 }
257 input->redo = port->output;
258 port->output->redi = input;
259
260 ddb_redirect_dma(input->port->dev, input->dma, port->output->dma);
261 mutex_unlock(&redirect_lock);
262 return 0;
263 }
264
265 /****************************************************************************/
266 /****************************************************************************/
267 /****************************************************************************/
268
dma_free(struct pci_dev * pdev,struct ddb_dma * dma,int dir)269 static void dma_free(struct pci_dev *pdev, struct ddb_dma *dma, int dir)
270 {
271 int i;
272
273 if (!dma)
274 return;
275 for (i = 0; i < dma->num; i++) {
276 if (dma->vbuf[i]) {
277 if (alt_dma) {
278 dma_unmap_single(&pdev->dev, dma->pbuf[i],
279 dma->size,
280 dir ? DMA_TO_DEVICE :
281 DMA_FROM_DEVICE);
282 kfree(dma->vbuf[i]);
283 dma->vbuf[i] = NULL;
284 } else {
285 dma_free_coherent(&pdev->dev, dma->size,
286 dma->vbuf[i], dma->pbuf[i]);
287 }
288
289 dma->vbuf[i] = NULL;
290 }
291 }
292 }
293
dma_alloc(struct pci_dev * pdev,struct ddb_dma * dma,int dir)294 static int dma_alloc(struct pci_dev *pdev, struct ddb_dma *dma, int dir)
295 {
296 int i;
297
298 if (!dma)
299 return 0;
300 for (i = 0; i < dma->num; i++) {
301 if (alt_dma) {
302 dma->vbuf[i] = kmalloc(dma->size, __GFP_RETRY_MAYFAIL);
303 if (!dma->vbuf[i])
304 return -ENOMEM;
305 dma->pbuf[i] = dma_map_single(&pdev->dev,
306 dma->vbuf[i],
307 dma->size,
308 dir ? DMA_TO_DEVICE :
309 DMA_FROM_DEVICE);
310 if (dma_mapping_error(&pdev->dev, dma->pbuf[i])) {
311 kfree(dma->vbuf[i]);
312 dma->vbuf[i] = NULL;
313 return -ENOMEM;
314 }
315 } else {
316 dma->vbuf[i] = dma_alloc_coherent(&pdev->dev,
317 dma->size,
318 &dma->pbuf[i],
319 GFP_KERNEL);
320 if (!dma->vbuf[i])
321 return -ENOMEM;
322 }
323 }
324 return 0;
325 }
326
ddb_buffers_alloc(struct ddb * dev)327 int ddb_buffers_alloc(struct ddb *dev)
328 {
329 int i;
330 struct ddb_port *port;
331
332 for (i = 0; i < dev->port_num; i++) {
333 port = &dev->port[i];
334 switch (port->class) {
335 case DDB_PORT_TUNER:
336 if (port->input[0]->dma)
337 if (dma_alloc(dev->pdev, port->input[0]->dma, 0)
338 < 0)
339 return -1;
340 if (port->input[1]->dma)
341 if (dma_alloc(dev->pdev, port->input[1]->dma, 0)
342 < 0)
343 return -1;
344 break;
345 case DDB_PORT_CI:
346 case DDB_PORT_LOOP:
347 if (port->input[0]->dma)
348 if (dma_alloc(dev->pdev, port->input[0]->dma, 0)
349 < 0)
350 return -1;
351 if (port->output->dma)
352 if (dma_alloc(dev->pdev, port->output->dma, 1)
353 < 0)
354 return -1;
355 break;
356 default:
357 break;
358 }
359 }
360 ddb_set_dma_tables(dev);
361 return 0;
362 }
363
ddb_buffers_free(struct ddb * dev)364 void ddb_buffers_free(struct ddb *dev)
365 {
366 int i;
367 struct ddb_port *port;
368
369 for (i = 0; i < dev->port_num; i++) {
370 port = &dev->port[i];
371
372 if (port->input[0] && port->input[0]->dma)
373 dma_free(dev->pdev, port->input[0]->dma, 0);
374 if (port->input[1] && port->input[1]->dma)
375 dma_free(dev->pdev, port->input[1]->dma, 0);
376 if (port->output && port->output->dma)
377 dma_free(dev->pdev, port->output->dma, 1);
378 }
379 }
380
calc_con(struct ddb_output * output,u32 * con,u32 * con2,u32 flags)381 static void calc_con(struct ddb_output *output, u32 *con, u32 *con2, u32 flags)
382 {
383 struct ddb *dev = output->port->dev;
384 u32 bitrate = output->port->obr, max_bitrate = 72000;
385 u32 gap = 4, nco = 0;
386
387 *con = 0x1c;
388 if (output->port->gap != 0xffffffff) {
389 flags |= 1;
390 gap = output->port->gap;
391 max_bitrate = 0;
392 }
393 if (dev->link[0].info->type == DDB_OCTOPUS_CI && output->port->nr > 1) {
394 *con = 0x10c;
395 if (dev->link[0].ids.regmapid >= 0x10003 && !(flags & 1)) {
396 if (!(flags & 2)) {
397 /* NCO */
398 max_bitrate = 0;
399 gap = 0;
400 if (bitrate != 72000) {
401 if (bitrate >= 96000) {
402 *con |= 0x800;
403 } else {
404 *con |= 0x1000;
405 nco = (bitrate * 8192 + 71999)
406 / 72000;
407 }
408 }
409 } else {
410 /* Divider and gap */
411 *con |= 0x1810;
412 if (bitrate <= 64000) {
413 max_bitrate = 64000;
414 nco = 8;
415 } else if (bitrate <= 72000) {
416 max_bitrate = 72000;
417 nco = 7;
418 } else {
419 max_bitrate = 96000;
420 nco = 5;
421 }
422 }
423 } else {
424 if (bitrate > 72000) {
425 *con |= 0x810; /* 96 MBit/s and gap */
426 max_bitrate = 96000;
427 }
428 *con |= 0x10; /* enable gap */
429 }
430 }
431 if (max_bitrate > 0) {
432 if (bitrate > max_bitrate)
433 bitrate = max_bitrate;
434 if (bitrate < 31000)
435 bitrate = 31000;
436 gap = ((max_bitrate - bitrate) * 94) / bitrate;
437 if (gap < 2)
438 *con &= ~0x10; /* Disable gap */
439 else
440 gap -= 2;
441 if (gap > 127)
442 gap = 127;
443 }
444
445 *con2 = (nco << 16) | gap;
446 }
447
ddb_output_start(struct ddb_output * output)448 static void ddb_output_start(struct ddb_output *output)
449 {
450 struct ddb *dev = output->port->dev;
451 u32 con = 0x11c, con2 = 0;
452
453 spin_lock_irq(&output->dma->lock);
454 output->dma->cbuf = 0;
455 output->dma->coff = 0;
456 output->dma->stat = 0;
457 ddbwritel(dev, 0, DMA_BUFFER_CONTROL(output->dma));
458
459 if (output->port->input[0]->port->class == DDB_PORT_LOOP)
460 con = (1UL << 13) | 0x14;
461 else
462 calc_con(output, &con, &con2, 0);
463
464 ddbwritel(dev, 0, TS_CONTROL(output));
465 ddbwritel(dev, 2, TS_CONTROL(output));
466 ddbwritel(dev, 0, TS_CONTROL(output));
467 ddbwritel(dev, con, TS_CONTROL(output));
468 ddbwritel(dev, con2, TS_CONTROL2(output));
469
470 ddbwritel(dev, output->dma->bufval,
471 DMA_BUFFER_SIZE(output->dma));
472 ddbwritel(dev, 0, DMA_BUFFER_ACK(output->dma));
473 ddbwritel(dev, 1, DMA_BASE_READ);
474 ddbwritel(dev, 7, DMA_BUFFER_CONTROL(output->dma));
475
476 ddbwritel(dev, con | 1, TS_CONTROL(output));
477
478 output->dma->running = 1;
479 spin_unlock_irq(&output->dma->lock);
480 }
481
ddb_output_stop(struct ddb_output * output)482 static void ddb_output_stop(struct ddb_output *output)
483 {
484 struct ddb *dev = output->port->dev;
485
486 spin_lock_irq(&output->dma->lock);
487
488 ddbwritel(dev, 0, TS_CONTROL(output));
489
490 ddbwritel(dev, 0, DMA_BUFFER_CONTROL(output->dma));
491 output->dma->running = 0;
492 spin_unlock_irq(&output->dma->lock);
493 }
494
ddb_input_stop(struct ddb_input * input)495 static void ddb_input_stop(struct ddb_input *input)
496 {
497 struct ddb *dev = input->port->dev;
498 u32 tag = DDB_LINK_TAG(input->port->lnr);
499
500 spin_lock_irq(&input->dma->lock);
501
502 ddbwritel(dev, 0, tag | TS_CONTROL(input));
503
504 ddbwritel(dev, 0, DMA_BUFFER_CONTROL(input->dma));
505 input->dma->running = 0;
506 spin_unlock_irq(&input->dma->lock);
507 }
508
ddb_input_start(struct ddb_input * input)509 static void ddb_input_start(struct ddb_input *input)
510 {
511 struct ddb *dev = input->port->dev;
512
513 spin_lock_irq(&input->dma->lock);
514 input->dma->cbuf = 0;
515 input->dma->coff = 0;
516 input->dma->stat = 0;
517 ddbwritel(dev, 0, DMA_BUFFER_CONTROL(input->dma));
518
519 ddbwritel(dev, 0, TS_CONTROL(input));
520 ddbwritel(dev, 2, TS_CONTROL(input));
521 ddbwritel(dev, 0, TS_CONTROL(input));
522
523 ddbwritel(dev, input->dma->bufval,
524 DMA_BUFFER_SIZE(input->dma));
525 ddbwritel(dev, 0, DMA_BUFFER_ACK(input->dma));
526 ddbwritel(dev, 1, DMA_BASE_WRITE);
527 ddbwritel(dev, 3, DMA_BUFFER_CONTROL(input->dma));
528
529 ddbwritel(dev, 0x09, TS_CONTROL(input));
530
531 if (input->port->type == DDB_TUNER_DUMMY)
532 ddbwritel(dev, 0x000fff01, TS_CONTROL2(input));
533
534 input->dma->running = 1;
535 spin_unlock_irq(&input->dma->lock);
536 }
537
ddb_input_start_all(struct ddb_input * input)538 static void ddb_input_start_all(struct ddb_input *input)
539 {
540 struct ddb_input *i = input;
541 struct ddb_output *o;
542
543 mutex_lock(&redirect_lock);
544 while (i && (o = i->redo)) {
545 ddb_output_start(o);
546 i = o->port->input[0];
547 if (i)
548 ddb_input_start(i);
549 }
550 ddb_input_start(input);
551 mutex_unlock(&redirect_lock);
552 }
553
ddb_input_stop_all(struct ddb_input * input)554 static void ddb_input_stop_all(struct ddb_input *input)
555 {
556 struct ddb_input *i = input;
557 struct ddb_output *o;
558
559 mutex_lock(&redirect_lock);
560 ddb_input_stop(input);
561 while (i && (o = i->redo)) {
562 ddb_output_stop(o);
563 i = o->port->input[0];
564 if (i)
565 ddb_input_stop(i);
566 }
567 mutex_unlock(&redirect_lock);
568 }
569
ddb_output_free(struct ddb_output * output)570 static u32 ddb_output_free(struct ddb_output *output)
571 {
572 u32 idx, off, stat = output->dma->stat;
573 s32 diff;
574
575 idx = (stat >> 11) & 0x1f;
576 off = (stat & 0x7ff) << 7;
577
578 if (output->dma->cbuf != idx) {
579 if ((((output->dma->cbuf + 1) % output->dma->num) == idx) &&
580 (output->dma->size - output->dma->coff <= (2 * 188)))
581 return 0;
582 return 188;
583 }
584 diff = off - output->dma->coff;
585 if (diff <= 0 || diff > (2 * 188))
586 return 188;
587 return 0;
588 }
589
ddb_output_write(struct ddb_output * output,const __user u8 * buf,size_t count)590 static ssize_t ddb_output_write(struct ddb_output *output,
591 const __user u8 *buf, size_t count)
592 {
593 struct ddb *dev = output->port->dev;
594 u32 idx, off, stat = output->dma->stat;
595 u32 left = count, len;
596
597 idx = (stat >> 11) & 0x1f;
598 off = (stat & 0x7ff) << 7;
599
600 while (left) {
601 len = output->dma->size - output->dma->coff;
602 if ((((output->dma->cbuf + 1) % output->dma->num) == idx) &&
603 off == 0) {
604 if (len <= 188)
605 break;
606 len -= 188;
607 }
608 if (output->dma->cbuf == idx) {
609 if (off > output->dma->coff) {
610 len = off - output->dma->coff;
611 len -= (len % 188);
612 if (len <= 188)
613 break;
614 len -= 188;
615 }
616 }
617 if (len > left)
618 len = left;
619 if (copy_from_user(output->dma->vbuf[output->dma->cbuf] +
620 output->dma->coff,
621 buf, len))
622 return -EIO;
623 if (alt_dma)
624 dma_sync_single_for_device(
625 dev->dev,
626 output->dma->pbuf[output->dma->cbuf],
627 output->dma->size, DMA_TO_DEVICE);
628 left -= len;
629 buf += len;
630 output->dma->coff += len;
631 if (output->dma->coff == output->dma->size) {
632 output->dma->coff = 0;
633 output->dma->cbuf = ((output->dma->cbuf + 1) %
634 output->dma->num);
635 }
636 ddbwritel(dev,
637 (output->dma->cbuf << 11) |
638 (output->dma->coff >> 7),
639 DMA_BUFFER_ACK(output->dma));
640 }
641 return count - left;
642 }
643
ddb_input_avail(struct ddb_input * input)644 static u32 ddb_input_avail(struct ddb_input *input)
645 {
646 struct ddb *dev = input->port->dev;
647 u32 idx, off, stat = input->dma->stat;
648 u32 ctrl = ddbreadl(dev, DMA_BUFFER_CONTROL(input->dma));
649
650 idx = (stat >> 11) & 0x1f;
651 off = (stat & 0x7ff) << 7;
652
653 if (ctrl & 4) {
654 dev_err(dev->dev, "IA %d %d %08x\n", idx, off, ctrl);
655 ddbwritel(dev, stat, DMA_BUFFER_ACK(input->dma));
656 return 0;
657 }
658 if (input->dma->cbuf != idx)
659 return 188;
660 return 0;
661 }
662
ddb_input_read(struct ddb_input * input,__user u8 * buf,size_t count)663 static ssize_t ddb_input_read(struct ddb_input *input,
664 __user u8 *buf, size_t count)
665 {
666 struct ddb *dev = input->port->dev;
667 u32 left = count;
668 u32 idx, free, stat = input->dma->stat;
669 int ret;
670
671 idx = (stat >> 11) & 0x1f;
672
673 while (left) {
674 if (input->dma->cbuf == idx)
675 return count - left;
676 free = input->dma->size - input->dma->coff;
677 if (free > left)
678 free = left;
679 if (alt_dma)
680 dma_sync_single_for_cpu(
681 dev->dev,
682 input->dma->pbuf[input->dma->cbuf],
683 input->dma->size, DMA_FROM_DEVICE);
684 ret = copy_to_user(buf, input->dma->vbuf[input->dma->cbuf] +
685 input->dma->coff, free);
686 if (ret)
687 return -EFAULT;
688 input->dma->coff += free;
689 if (input->dma->coff == input->dma->size) {
690 input->dma->coff = 0;
691 input->dma->cbuf = (input->dma->cbuf + 1) %
692 input->dma->num;
693 }
694 left -= free;
695 buf += free;
696 ddbwritel(dev,
697 (input->dma->cbuf << 11) | (input->dma->coff >> 7),
698 DMA_BUFFER_ACK(input->dma));
699 }
700 return count;
701 }
702
703 /****************************************************************************/
704 /****************************************************************************/
705
ts_write(struct file * file,const __user char * buf,size_t count,loff_t * ppos)706 static ssize_t ts_write(struct file *file, const __user char *buf,
707 size_t count, loff_t *ppos)
708 {
709 struct dvb_device *dvbdev = file->private_data;
710 struct ddb_output *output = dvbdev->priv;
711 struct ddb *dev = output->port->dev;
712 size_t left = count;
713 int stat;
714
715 if (!dev->has_dma)
716 return -EINVAL;
717 while (left) {
718 if (ddb_output_free(output) < 188) {
719 if (file->f_flags & O_NONBLOCK)
720 break;
721 if (wait_event_interruptible(
722 output->dma->wq,
723 ddb_output_free(output) >= 188) < 0)
724 break;
725 }
726 stat = ddb_output_write(output, buf, left);
727 if (stat < 0)
728 return stat;
729 buf += stat;
730 left -= stat;
731 }
732 return (left == count) ? -EAGAIN : (count - left);
733 }
734
ts_read(struct file * file,__user char * buf,size_t count,loff_t * ppos)735 static ssize_t ts_read(struct file *file, __user char *buf,
736 size_t count, loff_t *ppos)
737 {
738 struct dvb_device *dvbdev = file->private_data;
739 struct ddb_output *output = dvbdev->priv;
740 struct ddb_input *input = output->port->input[0];
741 struct ddb *dev = output->port->dev;
742 size_t left = count;
743 int stat;
744
745 if (!dev->has_dma)
746 return -EINVAL;
747 while (left) {
748 if (ddb_input_avail(input) < 188) {
749 if (file->f_flags & O_NONBLOCK)
750 break;
751 if (wait_event_interruptible(
752 input->dma->wq,
753 ddb_input_avail(input) >= 188) < 0)
754 break;
755 }
756 stat = ddb_input_read(input, buf, left);
757 if (stat < 0)
758 return stat;
759 left -= stat;
760 buf += stat;
761 }
762 return (count && (left == count)) ? -EAGAIN : (count - left);
763 }
764
ts_poll(struct file * file,poll_table * wait)765 static __poll_t ts_poll(struct file *file, poll_table *wait)
766 {
767 struct dvb_device *dvbdev = file->private_data;
768 struct ddb_output *output = dvbdev->priv;
769 struct ddb_input *input = output->port->input[0];
770
771 __poll_t mask = 0;
772
773 poll_wait(file, &input->dma->wq, wait);
774 poll_wait(file, &output->dma->wq, wait);
775 if (ddb_input_avail(input) >= 188)
776 mask |= EPOLLIN | EPOLLRDNORM;
777 if (ddb_output_free(output) >= 188)
778 mask |= EPOLLOUT | EPOLLWRNORM;
779 return mask;
780 }
781
ts_release(struct inode * inode,struct file * file)782 static int ts_release(struct inode *inode, struct file *file)
783 {
784 struct dvb_device *dvbdev = file->private_data;
785 struct ddb_output *output = NULL;
786 struct ddb_input *input = NULL;
787
788 if (dvbdev) {
789 output = dvbdev->priv;
790 input = output->port->input[0];
791 }
792
793 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
794 if (!input)
795 return -EINVAL;
796 ddb_input_stop(input);
797 } else if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
798 if (!output)
799 return -EINVAL;
800 ddb_output_stop(output);
801 }
802 return dvb_generic_release(inode, file);
803 }
804
ts_open(struct inode * inode,struct file * file)805 static int ts_open(struct inode *inode, struct file *file)
806 {
807 int err;
808 struct dvb_device *dvbdev = file->private_data;
809 struct ddb_output *output = NULL;
810 struct ddb_input *input = NULL;
811
812 if (dvbdev) {
813 output = dvbdev->priv;
814 input = output->port->input[0];
815 }
816
817 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
818 if (!input)
819 return -EINVAL;
820 if (input->redo || input->redi)
821 return -EBUSY;
822 } else if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
823 if (!output)
824 return -EINVAL;
825 } else {
826 return -EINVAL;
827 }
828
829 err = dvb_generic_open(inode, file);
830 if (err < 0)
831 return err;
832 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
833 ddb_input_start(input);
834 else if ((file->f_flags & O_ACCMODE) == O_WRONLY)
835 ddb_output_start(output);
836 return err;
837 }
838
839 static const struct file_operations ci_fops = {
840 .owner = THIS_MODULE,
841 .read = ts_read,
842 .write = ts_write,
843 .open = ts_open,
844 .release = ts_release,
845 .poll = ts_poll,
846 .mmap = NULL,
847 };
848
849 static struct dvb_device dvbdev_ci = {
850 .priv = NULL,
851 .readers = 1,
852 .writers = 1,
853 .users = 2,
854 .fops = &ci_fops,
855 };
856
857 /****************************************************************************/
858 /****************************************************************************/
859
locked_gate_ctrl(struct dvb_frontend * fe,int enable)860 static int locked_gate_ctrl(struct dvb_frontend *fe, int enable)
861 {
862 struct ddb_input *input = fe->sec_priv;
863 struct ddb_port *port = input->port;
864 struct ddb_dvb *dvb = &port->dvb[input->nr & 1];
865 int status;
866
867 if (enable) {
868 mutex_lock(&port->i2c_gate_lock);
869 status = dvb->i2c_gate_ctrl(fe, 1);
870 } else {
871 status = dvb->i2c_gate_ctrl(fe, 0);
872 mutex_unlock(&port->i2c_gate_lock);
873 }
874 return status;
875 }
876
demod_attach_drxk(struct ddb_input * input)877 static int demod_attach_drxk(struct ddb_input *input)
878 {
879 struct i2c_adapter *i2c = &input->port->i2c->adap;
880 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
881 struct device *dev = input->port->dev->dev;
882 struct drxk_config config;
883
884 memset(&config, 0, sizeof(config));
885 config.adr = 0x29 + (input->nr & 1);
886 config.microcode_name = "drxk_a3.mc";
887
888 dvb->fe = dvb_attach(drxk_attach, &config, i2c);
889 if (!dvb->fe) {
890 dev_err(dev, "No DRXK found!\n");
891 return -ENODEV;
892 }
893 dvb->fe->sec_priv = input;
894 dvb->i2c_gate_ctrl = dvb->fe->ops.i2c_gate_ctrl;
895 dvb->fe->ops.i2c_gate_ctrl = locked_gate_ctrl;
896 return 0;
897 }
898
tuner_attach_tda18271(struct ddb_input * input)899 static int tuner_attach_tda18271(struct ddb_input *input)
900 {
901 struct i2c_adapter *i2c = &input->port->i2c->adap;
902 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
903 struct device *dev = input->port->dev->dev;
904 struct dvb_frontend *fe;
905
906 if (dvb->fe->ops.i2c_gate_ctrl)
907 dvb->fe->ops.i2c_gate_ctrl(dvb->fe, 1);
908 fe = dvb_attach(tda18271c2dd_attach, dvb->fe, i2c, 0x60);
909 if (dvb->fe->ops.i2c_gate_ctrl)
910 dvb->fe->ops.i2c_gate_ctrl(dvb->fe, 0);
911 if (!fe) {
912 dev_err(dev, "No TDA18271 found!\n");
913 return -ENODEV;
914 }
915 return 0;
916 }
917
918 /******************************************************************************/
919 /******************************************************************************/
920 /******************************************************************************/
921
922 static struct stv0367_config ddb_stv0367_config[] = {
923 {
924 .demod_address = 0x1f,
925 .xtal = 27000000,
926 .if_khz = 0,
927 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
928 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
929 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
930 }, {
931 .demod_address = 0x1e,
932 .xtal = 27000000,
933 .if_khz = 0,
934 .if_iq_mode = FE_TER_NORMAL_IF_TUNER,
935 .ts_mode = STV0367_SERIAL_PUNCT_CLOCK,
936 .clk_pol = STV0367_CLOCKPOLARITY_DEFAULT,
937 },
938 };
939
demod_attach_stv0367(struct ddb_input * input)940 static int demod_attach_stv0367(struct ddb_input *input)
941 {
942 struct i2c_adapter *i2c = &input->port->i2c->adap;
943 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
944 struct device *dev = input->port->dev->dev;
945
946 /* attach frontend */
947 dvb->fe = dvb_attach(stv0367ddb_attach,
948 &ddb_stv0367_config[(input->nr & 1)], i2c);
949
950 if (!dvb->fe) {
951 dev_err(dev, "No stv0367 found!\n");
952 return -ENODEV;
953 }
954 dvb->fe->sec_priv = input;
955 dvb->i2c_gate_ctrl = dvb->fe->ops.i2c_gate_ctrl;
956 dvb->fe->ops.i2c_gate_ctrl = locked_gate_ctrl;
957 return 0;
958 }
959
tuner_tda18212_ping(struct ddb_input * input,unsigned short adr)960 static int tuner_tda18212_ping(struct ddb_input *input, unsigned short adr)
961 {
962 struct i2c_adapter *adapter = &input->port->i2c->adap;
963 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
964 struct device *dev = input->port->dev->dev;
965 u8 tda_id[2];
966 u8 subaddr = 0x00;
967
968 dev_dbg(dev, "stv0367-tda18212 tuner ping\n");
969 if (dvb->fe->ops.i2c_gate_ctrl)
970 dvb->fe->ops.i2c_gate_ctrl(dvb->fe, 1);
971
972 if (i2c_read_regs(adapter, adr, subaddr, tda_id, sizeof(tda_id)) < 0)
973 dev_dbg(dev, "tda18212 ping 1 fail\n");
974 if (i2c_read_regs(adapter, adr, subaddr, tda_id, sizeof(tda_id)) < 0)
975 dev_warn(dev, "tda18212 ping failed, expect problems\n");
976
977 if (dvb->fe->ops.i2c_gate_ctrl)
978 dvb->fe->ops.i2c_gate_ctrl(dvb->fe, 0);
979
980 return 0;
981 }
982
demod_attach_cxd28xx(struct ddb_input * input,int par,int osc24)983 static int demod_attach_cxd28xx(struct ddb_input *input, int par, int osc24)
984 {
985 struct i2c_adapter *i2c = &input->port->i2c->adap;
986 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
987 struct device *dev = input->port->dev->dev;
988 struct cxd2841er_config cfg;
989
990 /* the cxd2841er driver expects 8bit/shifted I2C addresses */
991 cfg.i2c_addr = ((input->nr & 1) ? 0x6d : 0x6c) << 1;
992
993 cfg.xtal = osc24 ? SONY_XTAL_24000 : SONY_XTAL_20500;
994 cfg.flags = CXD2841ER_AUTO_IFHZ | CXD2841ER_EARLY_TUNE |
995 CXD2841ER_NO_WAIT_LOCK | CXD2841ER_NO_AGCNEG |
996 CXD2841ER_TSBITS;
997
998 if (!par)
999 cfg.flags |= CXD2841ER_TS_SERIAL;
1000
1001 /* attach frontend */
1002 dvb->fe = dvb_attach(cxd2841er_attach_t_c, &cfg, i2c);
1003
1004 if (!dvb->fe) {
1005 dev_err(dev, "No cxd2837/38/43/54 found!\n");
1006 return -ENODEV;
1007 }
1008 dvb->fe->sec_priv = input;
1009 dvb->i2c_gate_ctrl = dvb->fe->ops.i2c_gate_ctrl;
1010 dvb->fe->ops.i2c_gate_ctrl = locked_gate_ctrl;
1011 return 0;
1012 }
1013
tuner_attach_tda18212(struct ddb_input * input,u32 porttype)1014 static int tuner_attach_tda18212(struct ddb_input *input, u32 porttype)
1015 {
1016 struct i2c_adapter *adapter = &input->port->i2c->adap;
1017 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1018 struct device *dev = input->port->dev->dev;
1019 struct i2c_client *client;
1020 struct tda18212_config config = {
1021 .fe = dvb->fe,
1022 .if_dvbt_6 = 3550,
1023 .if_dvbt_7 = 3700,
1024 .if_dvbt_8 = 4150,
1025 .if_dvbt2_6 = 3250,
1026 .if_dvbt2_7 = 4000,
1027 .if_dvbt2_8 = 4000,
1028 .if_dvbc = 5000,
1029 };
1030 u8 addr = (input->nr & 1) ? 0x63 : 0x60;
1031
1032 /* due to a hardware quirk with the I2C gate on the stv0367+tda18212
1033 * combo, the tda18212 must be probed by reading it's id _twice_ when
1034 * cold started, or it very likely will fail.
1035 */
1036 if (porttype == DDB_TUNER_DVBCT_ST)
1037 tuner_tda18212_ping(input, addr);
1038
1039 /* perform tuner probe/init/attach */
1040 client = dvb_module_probe("tda18212", NULL, adapter, addr, &config);
1041 if (!client)
1042 goto err;
1043
1044 dvb->i2c_client[0] = client;
1045 return 0;
1046 err:
1047 dev_err(dev, "TDA18212 tuner not found. Device is not fully operational.\n");
1048 return -ENODEV;
1049 }
1050
1051 /****************************************************************************/
1052 /****************************************************************************/
1053 /****************************************************************************/
1054
1055 static struct stv090x_config stv0900 = {
1056 .device = STV0900,
1057 .demod_mode = STV090x_DUAL,
1058 .clk_mode = STV090x_CLK_EXT,
1059
1060 .xtal = 27000000,
1061 .address = 0x69,
1062
1063 .ts1_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
1064 .ts2_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
1065
1066 .ts1_tei = 1,
1067 .ts2_tei = 1,
1068
1069 .repeater_level = STV090x_RPTLEVEL_16,
1070
1071 .adc1_range = STV090x_ADC_1Vpp,
1072 .adc2_range = STV090x_ADC_1Vpp,
1073
1074 .diseqc_envelope_mode = true,
1075 };
1076
1077 static struct stv090x_config stv0900_aa = {
1078 .device = STV0900,
1079 .demod_mode = STV090x_DUAL,
1080 .clk_mode = STV090x_CLK_EXT,
1081
1082 .xtal = 27000000,
1083 .address = 0x68,
1084
1085 .ts1_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
1086 .ts2_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
1087
1088 .ts1_tei = 1,
1089 .ts2_tei = 1,
1090
1091 .repeater_level = STV090x_RPTLEVEL_16,
1092
1093 .adc1_range = STV090x_ADC_1Vpp,
1094 .adc2_range = STV090x_ADC_1Vpp,
1095
1096 .diseqc_envelope_mode = true,
1097 };
1098
1099 static struct stv6110x_config stv6110a = {
1100 .addr = 0x60,
1101 .refclk = 27000000,
1102 .clk_div = 1,
1103 };
1104
1105 static struct stv6110x_config stv6110b = {
1106 .addr = 0x63,
1107 .refclk = 27000000,
1108 .clk_div = 1,
1109 };
1110
demod_attach_stv0900(struct ddb_input * input,int type)1111 static int demod_attach_stv0900(struct ddb_input *input, int type)
1112 {
1113 struct i2c_adapter *i2c = &input->port->i2c->adap;
1114 struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
1115 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1116 struct device *dev = input->port->dev->dev;
1117
1118 dvb->fe = dvb_attach(stv090x_attach, feconf, i2c,
1119 (input->nr & 1) ? STV090x_DEMODULATOR_1
1120 : STV090x_DEMODULATOR_0);
1121 if (!dvb->fe) {
1122 dev_err(dev, "No STV0900 found!\n");
1123 return -ENODEV;
1124 }
1125 if (!dvb_attach(lnbh24_attach, dvb->fe, i2c, 0,
1126 0, (input->nr & 1) ?
1127 (0x09 - type) : (0x0b - type))) {
1128 dev_err(dev, "No LNBH24 found!\n");
1129 dvb_frontend_detach(dvb->fe);
1130 return -ENODEV;
1131 }
1132 return 0;
1133 }
1134
tuner_attach_stv6110(struct ddb_input * input,int type)1135 static int tuner_attach_stv6110(struct ddb_input *input, int type)
1136 {
1137 struct i2c_adapter *i2c = &input->port->i2c->adap;
1138 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1139 struct device *dev = input->port->dev->dev;
1140 struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
1141 struct stv6110x_config *tunerconf = (input->nr & 1) ?
1142 &stv6110b : &stv6110a;
1143 const struct stv6110x_devctl *ctl;
1144
1145 ctl = dvb_attach(stv6110x_attach, dvb->fe, tunerconf, i2c);
1146 if (!ctl) {
1147 dev_err(dev, "No STV6110X found!\n");
1148 return -ENODEV;
1149 }
1150 dev_info(dev, "attach tuner input %d adr %02x\n",
1151 input->nr, tunerconf->addr);
1152
1153 feconf->tuner_init = ctl->tuner_init;
1154 feconf->tuner_sleep = ctl->tuner_sleep;
1155 feconf->tuner_set_mode = ctl->tuner_set_mode;
1156 feconf->tuner_set_frequency = ctl->tuner_set_frequency;
1157 feconf->tuner_get_frequency = ctl->tuner_get_frequency;
1158 feconf->tuner_set_bandwidth = ctl->tuner_set_bandwidth;
1159 feconf->tuner_get_bandwidth = ctl->tuner_get_bandwidth;
1160 feconf->tuner_set_bbgain = ctl->tuner_set_bbgain;
1161 feconf->tuner_get_bbgain = ctl->tuner_get_bbgain;
1162 feconf->tuner_set_refclk = ctl->tuner_set_refclk;
1163 feconf->tuner_get_status = ctl->tuner_get_status;
1164
1165 return 0;
1166 }
1167
1168 static const struct stv0910_cfg stv0910_p = {
1169 .adr = 0x68,
1170 .parallel = 1,
1171 .rptlvl = 4,
1172 .clk = 30000000,
1173 .tsspeed = 0x28,
1174 };
1175
1176 static const struct lnbh25_config lnbh25_cfg = {
1177 .i2c_address = 0x0c << 1,
1178 .data2_config = LNBH25_TEN
1179 };
1180
has_lnbh25(struct i2c_adapter * i2c,u8 adr)1181 static int has_lnbh25(struct i2c_adapter *i2c, u8 adr)
1182 {
1183 u8 val;
1184
1185 return i2c_read_reg(i2c, adr, 0, &val) ? 0 : 1;
1186 }
1187
demod_attach_stv0910(struct ddb_input * input,int type,int tsfast)1188 static int demod_attach_stv0910(struct ddb_input *input, int type, int tsfast)
1189 {
1190 struct i2c_adapter *i2c = &input->port->i2c->adap;
1191 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1192 struct device *dev = input->port->dev->dev;
1193 struct stv0910_cfg cfg = stv0910_p;
1194 struct lnbh25_config lnbcfg = lnbh25_cfg;
1195
1196 if (stv0910_single)
1197 cfg.single = 1;
1198
1199 if (type)
1200 cfg.parallel = 2;
1201
1202 if (tsfast) {
1203 dev_info(dev, "Enabling stv0910 higher speed TS\n");
1204 cfg.tsspeed = 0x10;
1205 }
1206
1207 dvb->fe = dvb_attach(stv0910_attach, i2c, &cfg, (input->nr & 1));
1208 if (!dvb->fe) {
1209 cfg.adr = 0x6c;
1210 dvb->fe = dvb_attach(stv0910_attach, i2c,
1211 &cfg, (input->nr & 1));
1212 }
1213 if (!dvb->fe) {
1214 dev_err(dev, "No STV0910 found!\n");
1215 return -ENODEV;
1216 }
1217
1218 /* attach lnbh25 - leftshift by one as the lnbh25 driver expects 8bit
1219 * i2c addresses
1220 */
1221 if (has_lnbh25(i2c, 0x0d))
1222 lnbcfg.i2c_address = (((input->nr & 1) ? 0x0d : 0x0c) << 1);
1223 else
1224 lnbcfg.i2c_address = (((input->nr & 1) ? 0x09 : 0x08) << 1);
1225
1226 if (!dvb_attach(lnbh25_attach, dvb->fe, &lnbcfg, i2c)) {
1227 dev_err(dev, "No LNBH25 found!\n");
1228 dvb_frontend_detach(dvb->fe);
1229 return -ENODEV;
1230 }
1231
1232 return 0;
1233 }
1234
tuner_attach_stv6111(struct ddb_input * input,int type)1235 static int tuner_attach_stv6111(struct ddb_input *input, int type)
1236 {
1237 struct i2c_adapter *i2c = &input->port->i2c->adap;
1238 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1239 struct device *dev = input->port->dev->dev;
1240 struct dvb_frontend *fe;
1241 u8 adr = (type ? 0 : 4) + ((input->nr & 1) ? 0x63 : 0x60);
1242
1243 fe = dvb_attach(stv6111_attach, dvb->fe, i2c, adr);
1244 if (!fe) {
1245 fe = dvb_attach(stv6111_attach, dvb->fe, i2c, adr & ~4);
1246 if (!fe) {
1247 dev_err(dev, "No STV6111 found at 0x%02x!\n", adr);
1248 return -ENODEV;
1249 }
1250 }
1251 return 0;
1252 }
1253
demod_attach_dummy(struct ddb_input * input)1254 static int demod_attach_dummy(struct ddb_input *input)
1255 {
1256 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1257 struct device *dev = input->port->dev->dev;
1258
1259 dvb->fe = dvb_attach(ddbridge_dummy_fe_qam_attach);
1260 if (!dvb->fe) {
1261 dev_err(dev, "QAM dummy attach failed!\n");
1262 return -ENODEV;
1263 }
1264
1265 return 0;
1266 }
1267
start_feed(struct dvb_demux_feed * dvbdmxfeed)1268 static int start_feed(struct dvb_demux_feed *dvbdmxfeed)
1269 {
1270 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
1271 struct ddb_input *input = dvbdmx->priv;
1272 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1273
1274 if (!dvb->users)
1275 ddb_input_start_all(input);
1276
1277 return ++dvb->users;
1278 }
1279
stop_feed(struct dvb_demux_feed * dvbdmxfeed)1280 static int stop_feed(struct dvb_demux_feed *dvbdmxfeed)
1281 {
1282 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
1283 struct ddb_input *input = dvbdmx->priv;
1284 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1285
1286 if (--dvb->users)
1287 return dvb->users;
1288
1289 ddb_input_stop_all(input);
1290 return 0;
1291 }
1292
dvb_input_detach(struct ddb_input * input)1293 static void dvb_input_detach(struct ddb_input *input)
1294 {
1295 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1296 struct dvb_demux *dvbdemux = &dvb->demux;
1297
1298 switch (dvb->attached) {
1299 case 0x31:
1300 if (dvb->fe2)
1301 dvb_unregister_frontend(dvb->fe2);
1302 if (dvb->fe)
1303 dvb_unregister_frontend(dvb->fe);
1304 fallthrough;
1305 case 0x30:
1306 dvb_module_release(dvb->i2c_client[0]);
1307 dvb->i2c_client[0] = NULL;
1308
1309 if (dvb->fe2)
1310 dvb_frontend_detach(dvb->fe2);
1311 if (dvb->fe)
1312 dvb_frontend_detach(dvb->fe);
1313 dvb->fe = NULL;
1314 dvb->fe2 = NULL;
1315 fallthrough;
1316 case 0x20:
1317 dvb_net_release(&dvb->dvbnet);
1318 fallthrough;
1319 case 0x12:
1320 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
1321 &dvb->hw_frontend);
1322 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
1323 &dvb->mem_frontend);
1324 fallthrough;
1325 case 0x11:
1326 dvb_dmxdev_release(&dvb->dmxdev);
1327 fallthrough;
1328 case 0x10:
1329 dvb_dmx_release(&dvb->demux);
1330 fallthrough;
1331 case 0x01:
1332 break;
1333 }
1334 dvb->attached = 0x00;
1335 }
1336
dvb_register_adapters(struct ddb * dev)1337 static int dvb_register_adapters(struct ddb *dev)
1338 {
1339 int i, ret = 0;
1340 struct ddb_port *port;
1341 struct dvb_adapter *adap;
1342
1343 if (adapter_alloc == 3) {
1344 port = &dev->port[0];
1345 adap = port->dvb[0].adap;
1346 ret = dvb_register_adapter(adap, "DDBridge", THIS_MODULE,
1347 port->dev->dev,
1348 adapter_nr);
1349 if (ret < 0)
1350 return ret;
1351 port->dvb[0].adap_registered = 1;
1352 for (i = 0; i < dev->port_num; i++) {
1353 port = &dev->port[i];
1354 port->dvb[0].adap = adap;
1355 port->dvb[1].adap = adap;
1356 }
1357 return 0;
1358 }
1359
1360 for (i = 0; i < dev->port_num; i++) {
1361 port = &dev->port[i];
1362 switch (port->class) {
1363 case DDB_PORT_TUNER:
1364 adap = port->dvb[0].adap;
1365 ret = dvb_register_adapter(adap, "DDBridge",
1366 THIS_MODULE,
1367 port->dev->dev,
1368 adapter_nr);
1369 if (ret < 0)
1370 return ret;
1371 port->dvb[0].adap_registered = 1;
1372
1373 if (adapter_alloc > 0) {
1374 port->dvb[1].adap = port->dvb[0].adap;
1375 break;
1376 }
1377 adap = port->dvb[1].adap;
1378 ret = dvb_register_adapter(adap, "DDBridge",
1379 THIS_MODULE,
1380 port->dev->dev,
1381 adapter_nr);
1382 if (ret < 0)
1383 return ret;
1384 port->dvb[1].adap_registered = 1;
1385 break;
1386
1387 case DDB_PORT_CI:
1388 case DDB_PORT_LOOP:
1389 adap = port->dvb[0].adap;
1390 ret = dvb_register_adapter(adap, "DDBridge",
1391 THIS_MODULE,
1392 port->dev->dev,
1393 adapter_nr);
1394 if (ret < 0)
1395 return ret;
1396 port->dvb[0].adap_registered = 1;
1397 break;
1398 default:
1399 if (adapter_alloc < 2)
1400 break;
1401 adap = port->dvb[0].adap;
1402 ret = dvb_register_adapter(adap, "DDBridge",
1403 THIS_MODULE,
1404 port->dev->dev,
1405 adapter_nr);
1406 if (ret < 0)
1407 return ret;
1408 port->dvb[0].adap_registered = 1;
1409 break;
1410 }
1411 }
1412 return ret;
1413 }
1414
dvb_unregister_adapters(struct ddb * dev)1415 static void dvb_unregister_adapters(struct ddb *dev)
1416 {
1417 int i;
1418 struct ddb_port *port;
1419 struct ddb_dvb *dvb;
1420
1421 for (i = 0; i < dev->link[0].info->port_num; i++) {
1422 port = &dev->port[i];
1423
1424 dvb = &port->dvb[0];
1425 if (dvb->adap_registered)
1426 dvb_unregister_adapter(dvb->adap);
1427 dvb->adap_registered = 0;
1428
1429 dvb = &port->dvb[1];
1430 if (dvb->adap_registered)
1431 dvb_unregister_adapter(dvb->adap);
1432 dvb->adap_registered = 0;
1433 }
1434 }
1435
dvb_input_attach(struct ddb_input * input)1436 static int dvb_input_attach(struct ddb_input *input)
1437 {
1438 int ret = 0;
1439 struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
1440 struct ddb_port *port = input->port;
1441 struct dvb_adapter *adap = dvb->adap;
1442 struct dvb_demux *dvbdemux = &dvb->demux;
1443 struct ddb_ids *devids = &input->port->dev->link[input->port->lnr].ids;
1444 int par = 0, osc24 = 0, tsfast = 0;
1445
1446 /*
1447 * Determine if bridges with stv0910 demods can run with fast TS and
1448 * thus support high bandwidth transponders.
1449 * STV0910_PR and STV0910_P tuner types covers all relevant bridges,
1450 * namely the CineS2 V7(A) and the Octopus CI S2 Pro/Advanced. All
1451 * DuoFlex S2 V4(A) have type=DDB_TUNER_DVBS_STV0910 without any suffix
1452 * and are limited by the serial link to the bridge, thus won't work
1453 * in fast TS mode.
1454 */
1455 if (port->nr == 0 &&
1456 (port->type == DDB_TUNER_DVBS_STV0910_PR ||
1457 port->type == DDB_TUNER_DVBS_STV0910_P)) {
1458 /* fast TS on port 0 requires FPGA version >= 1.7 */
1459 if ((devids->hwid & 0x00ffffff) >= 0x00010007)
1460 tsfast = 1;
1461 }
1462
1463 dvb->attached = 0x01;
1464
1465 dvbdemux->priv = input;
1466 dvbdemux->dmx.capabilities = DMX_TS_FILTERING |
1467 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;
1468 dvbdemux->start_feed = start_feed;
1469 dvbdemux->stop_feed = stop_feed;
1470 dvbdemux->filternum = 256;
1471 dvbdemux->feednum = 256;
1472 ret = dvb_dmx_init(dvbdemux);
1473 if (ret < 0)
1474 return ret;
1475 dvb->attached = 0x10;
1476
1477 dvb->dmxdev.filternum = 256;
1478 dvb->dmxdev.demux = &dvbdemux->dmx;
1479 ret = dvb_dmxdev_init(&dvb->dmxdev, adap);
1480 if (ret < 0)
1481 goto err_detach;
1482 dvb->attached = 0x11;
1483
1484 dvb->mem_frontend.source = DMX_MEMORY_FE;
1485 dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->mem_frontend);
1486 dvb->hw_frontend.source = DMX_FRONTEND_0;
1487 dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->hw_frontend);
1488 ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &dvb->hw_frontend);
1489 if (ret < 0)
1490 goto err_detach;
1491 dvb->attached = 0x12;
1492
1493 ret = dvb_net_init(adap, &dvb->dvbnet, dvb->dmxdev.demux);
1494 if (ret < 0)
1495 goto err_detach;
1496 dvb->attached = 0x20;
1497
1498 dvb->fe = NULL;
1499 dvb->fe2 = NULL;
1500 switch (port->type) {
1501 case DDB_TUNER_MXL5XX:
1502 if (ddb_fe_attach_mxl5xx(input) < 0)
1503 goto err_detach;
1504 break;
1505 case DDB_TUNER_DVBS_ST:
1506 if (demod_attach_stv0900(input, 0) < 0)
1507 goto err_detach;
1508 if (tuner_attach_stv6110(input, 0) < 0)
1509 goto err_tuner;
1510 break;
1511 case DDB_TUNER_DVBS_ST_AA:
1512 if (demod_attach_stv0900(input, 1) < 0)
1513 goto err_detach;
1514 if (tuner_attach_stv6110(input, 1) < 0)
1515 goto err_tuner;
1516 break;
1517 case DDB_TUNER_DVBS_STV0910:
1518 if (demod_attach_stv0910(input, 0, tsfast) < 0)
1519 goto err_detach;
1520 if (tuner_attach_stv6111(input, 0) < 0)
1521 goto err_tuner;
1522 break;
1523 case DDB_TUNER_DVBS_STV0910_PR:
1524 if (demod_attach_stv0910(input, 1, tsfast) < 0)
1525 goto err_detach;
1526 if (tuner_attach_stv6111(input, 1) < 0)
1527 goto err_tuner;
1528 break;
1529 case DDB_TUNER_DVBS_STV0910_P:
1530 if (demod_attach_stv0910(input, 0, tsfast) < 0)
1531 goto err_detach;
1532 if (tuner_attach_stv6111(input, 1) < 0)
1533 goto err_tuner;
1534 break;
1535 case DDB_TUNER_DVBCT_TR:
1536 if (demod_attach_drxk(input) < 0)
1537 goto err_detach;
1538 if (tuner_attach_tda18271(input) < 0)
1539 goto err_tuner;
1540 break;
1541 case DDB_TUNER_DVBCT_ST:
1542 if (demod_attach_stv0367(input) < 0)
1543 goto err_detach;
1544 if (tuner_attach_tda18212(input, port->type) < 0)
1545 goto err_tuner;
1546 break;
1547 case DDB_TUNER_DVBC2T2I_SONY_P:
1548 if (input->port->dev->link[input->port->lnr].info->ts_quirks &
1549 TS_QUIRK_ALT_OSC)
1550 osc24 = 0;
1551 else
1552 osc24 = 1;
1553 fallthrough;
1554 case DDB_TUNER_DVBCT2_SONY_P:
1555 case DDB_TUNER_DVBC2T2_SONY_P:
1556 case DDB_TUNER_ISDBT_SONY_P:
1557 if (input->port->dev->link[input->port->lnr].info->ts_quirks
1558 & TS_QUIRK_SERIAL)
1559 par = 0;
1560 else
1561 par = 1;
1562 if (demod_attach_cxd28xx(input, par, osc24) < 0)
1563 goto err_detach;
1564 if (tuner_attach_tda18212(input, port->type) < 0)
1565 goto err_tuner;
1566 break;
1567 case DDB_TUNER_DVBC2T2I_SONY:
1568 osc24 = 1;
1569 fallthrough;
1570 case DDB_TUNER_DVBCT2_SONY:
1571 case DDB_TUNER_DVBC2T2_SONY:
1572 case DDB_TUNER_ISDBT_SONY:
1573 if (demod_attach_cxd28xx(input, 0, osc24) < 0)
1574 goto err_detach;
1575 if (tuner_attach_tda18212(input, port->type) < 0)
1576 goto err_tuner;
1577 break;
1578 case DDB_TUNER_DUMMY:
1579 if (demod_attach_dummy(input) < 0)
1580 goto err_detach;
1581 break;
1582 case DDB_TUNER_MCI_SX8:
1583 if (ddb_fe_attach_mci(input, port->type) < 0)
1584 goto err_detach;
1585 break;
1586 default:
1587 return 0;
1588 }
1589 dvb->attached = 0x30;
1590
1591 if (dvb->fe) {
1592 if (dvb_register_frontend(adap, dvb->fe) < 0)
1593 goto err_detach;
1594
1595 if (dvb->fe2) {
1596 if (dvb_register_frontend(adap, dvb->fe2) < 0) {
1597 dvb_unregister_frontend(dvb->fe);
1598 goto err_detach;
1599 }
1600 dvb->fe2->tuner_priv = dvb->fe->tuner_priv;
1601 memcpy(&dvb->fe2->ops.tuner_ops,
1602 &dvb->fe->ops.tuner_ops,
1603 sizeof(struct dvb_tuner_ops));
1604 }
1605 }
1606
1607 dvb->attached = 0x31;
1608 return 0;
1609
1610 err_tuner:
1611 dev_err(port->dev->dev, "tuner attach failed!\n");
1612
1613 if (dvb->fe2)
1614 dvb_frontend_detach(dvb->fe2);
1615 if (dvb->fe)
1616 dvb_frontend_detach(dvb->fe);
1617 err_detach:
1618 dvb_input_detach(input);
1619
1620 /* return error from ret if set */
1621 if (ret < 0)
1622 return ret;
1623
1624 return -ENODEV;
1625 }
1626
port_has_encti(struct ddb_port * port)1627 static int port_has_encti(struct ddb_port *port)
1628 {
1629 struct device *dev = port->dev->dev;
1630 u8 val;
1631 int ret = i2c_read_reg(&port->i2c->adap, 0x20, 0, &val);
1632
1633 if (!ret)
1634 dev_info(dev, "[0x20]=0x%02x\n", val);
1635 return ret ? 0 : 1;
1636 }
1637
port_has_cxd(struct ddb_port * port,u8 * type)1638 static int port_has_cxd(struct ddb_port *port, u8 *type)
1639 {
1640 u8 val;
1641 u8 probe[4] = { 0xe0, 0x00, 0x00, 0x00 }, data[4];
1642 struct i2c_msg msgs[2] = {{ .addr = 0x40, .flags = 0,
1643 .buf = probe, .len = 4 },
1644 { .addr = 0x40, .flags = I2C_M_RD,
1645 .buf = data, .len = 4 } };
1646 val = i2c_transfer(&port->i2c->adap, msgs, 2);
1647 if (val != 2)
1648 return 0;
1649
1650 if (data[0] == 0x02 && data[1] == 0x2b && data[3] == 0x43)
1651 *type = 2;
1652 else
1653 *type = 1;
1654 return 1;
1655 }
1656
port_has_xo2(struct ddb_port * port,u8 * type,u8 * id)1657 static int port_has_xo2(struct ddb_port *port, u8 *type, u8 *id)
1658 {
1659 u8 probe[1] = { 0x00 }, data[4];
1660
1661 if (i2c_io(&port->i2c->adap, 0x10, probe, 1, data, 4))
1662 return 0;
1663 if (data[0] == 'D' && data[1] == 'F') {
1664 *id = data[2];
1665 *type = 1;
1666 return 1;
1667 }
1668 if (data[0] == 'C' && data[1] == 'I') {
1669 *id = data[2];
1670 *type = 2;
1671 return 1;
1672 }
1673 return 0;
1674 }
1675
port_has_stv0900(struct ddb_port * port)1676 static int port_has_stv0900(struct ddb_port *port)
1677 {
1678 u8 val;
1679
1680 if (i2c_read_reg16(&port->i2c->adap, 0x69, 0xf100, &val) < 0)
1681 return 0;
1682 return 1;
1683 }
1684
port_has_stv0900_aa(struct ddb_port * port,u8 * id)1685 static int port_has_stv0900_aa(struct ddb_port *port, u8 *id)
1686 {
1687 if (i2c_read_reg16(&port->i2c->adap, 0x68, 0xf100, id) < 0)
1688 return 0;
1689 return 1;
1690 }
1691
port_has_drxks(struct ddb_port * port)1692 static int port_has_drxks(struct ddb_port *port)
1693 {
1694 u8 val;
1695
1696 if (i2c_read(&port->i2c->adap, 0x29, &val) < 0)
1697 return 0;
1698 if (i2c_read(&port->i2c->adap, 0x2a, &val) < 0)
1699 return 0;
1700 return 1;
1701 }
1702
port_has_stv0367(struct ddb_port * port)1703 static int port_has_stv0367(struct ddb_port *port)
1704 {
1705 u8 val;
1706
1707 if (i2c_read_reg16(&port->i2c->adap, 0x1e, 0xf000, &val) < 0)
1708 return 0;
1709 if (val != 0x60)
1710 return 0;
1711 if (i2c_read_reg16(&port->i2c->adap, 0x1f, 0xf000, &val) < 0)
1712 return 0;
1713 if (val != 0x60)
1714 return 0;
1715 return 1;
1716 }
1717
init_xo2(struct ddb_port * port)1718 static int init_xo2(struct ddb_port *port)
1719 {
1720 struct i2c_adapter *i2c = &port->i2c->adap;
1721 struct ddb *dev = port->dev;
1722 u8 val, data[2];
1723 int res;
1724
1725 res = i2c_read_regs(i2c, 0x10, 0x04, data, 2);
1726 if (res < 0)
1727 return res;
1728
1729 if (data[0] != 0x01) {
1730 dev_info(dev->dev, "Port %d: invalid XO2\n", port->nr);
1731 return -1;
1732 }
1733
1734 i2c_read_reg(i2c, 0x10, 0x08, &val);
1735 if (val != 0) {
1736 i2c_write_reg(i2c, 0x10, 0x08, 0x00);
1737 msleep(100);
1738 }
1739 /* Enable tuner power, disable pll, reset demods */
1740 i2c_write_reg(i2c, 0x10, 0x08, 0x04);
1741 usleep_range(2000, 3000);
1742 /* Release demod resets */
1743 i2c_write_reg(i2c, 0x10, 0x08, 0x07);
1744
1745 /* speed: 0=55,1=75,2=90,3=104 MBit/s */
1746 i2c_write_reg(i2c, 0x10, 0x09, xo2_speed);
1747
1748 if (dev->link[port->lnr].info->con_clock) {
1749 dev_info(dev->dev, "Setting continuous clock for XO2\n");
1750 i2c_write_reg(i2c, 0x10, 0x0a, 0x03);
1751 i2c_write_reg(i2c, 0x10, 0x0b, 0x03);
1752 } else {
1753 i2c_write_reg(i2c, 0x10, 0x0a, 0x01);
1754 i2c_write_reg(i2c, 0x10, 0x0b, 0x01);
1755 }
1756
1757 usleep_range(2000, 3000);
1758 /* Start XO2 PLL */
1759 i2c_write_reg(i2c, 0x10, 0x08, 0x87);
1760
1761 return 0;
1762 }
1763
init_xo2_ci(struct ddb_port * port)1764 static int init_xo2_ci(struct ddb_port *port)
1765 {
1766 struct i2c_adapter *i2c = &port->i2c->adap;
1767 struct ddb *dev = port->dev;
1768 u8 val, data[2];
1769 int res;
1770
1771 res = i2c_read_regs(i2c, 0x10, 0x04, data, 2);
1772 if (res < 0)
1773 return res;
1774
1775 if (data[0] > 1) {
1776 dev_info(dev->dev, "Port %d: invalid XO2 CI %02x\n",
1777 port->nr, data[0]);
1778 return -1;
1779 }
1780 dev_info(dev->dev, "Port %d: DuoFlex CI %u.%u\n",
1781 port->nr, data[0], data[1]);
1782
1783 i2c_read_reg(i2c, 0x10, 0x08, &val);
1784 if (val != 0) {
1785 i2c_write_reg(i2c, 0x10, 0x08, 0x00);
1786 msleep(100);
1787 }
1788 /* Enable both CI */
1789 i2c_write_reg(i2c, 0x10, 0x08, 3);
1790 usleep_range(2000, 3000);
1791
1792 /* speed: 0=55,1=75,2=90,3=104 MBit/s */
1793 i2c_write_reg(i2c, 0x10, 0x09, 1);
1794
1795 i2c_write_reg(i2c, 0x10, 0x08, 0x83);
1796 usleep_range(2000, 3000);
1797
1798 if (dev->link[port->lnr].info->con_clock) {
1799 dev_info(dev->dev, "Setting continuous clock for DuoFlex CI\n");
1800 i2c_write_reg(i2c, 0x10, 0x0a, 0x03);
1801 i2c_write_reg(i2c, 0x10, 0x0b, 0x03);
1802 } else {
1803 i2c_write_reg(i2c, 0x10, 0x0a, 0x01);
1804 i2c_write_reg(i2c, 0x10, 0x0b, 0x01);
1805 }
1806 return 0;
1807 }
1808
port_has_cxd28xx(struct ddb_port * port,u8 * id)1809 static int port_has_cxd28xx(struct ddb_port *port, u8 *id)
1810 {
1811 struct i2c_adapter *i2c = &port->i2c->adap;
1812 int status;
1813
1814 status = i2c_write_reg(&port->i2c->adap, 0x6e, 0, 0);
1815 if (status)
1816 return 0;
1817 status = i2c_read_reg(i2c, 0x6e, 0xfd, id);
1818 if (status)
1819 return 0;
1820 return 1;
1821 }
1822
1823 static char *xo2names[] = {
1824 "DUAL DVB-S2", "DUAL DVB-C/T/T2",
1825 "DUAL DVB-ISDBT", "DUAL DVB-C/C2/T/T2",
1826 "DUAL ATSC", "DUAL DVB-C/C2/T/T2,ISDB-T",
1827 "", ""
1828 };
1829
1830 static char *xo2types[] = {
1831 "DVBS_ST", "DVBCT2_SONY",
1832 "ISDBT_SONY", "DVBC2T2_SONY",
1833 "ATSC_ST", "DVBC2T2I_SONY"
1834 };
1835
ddb_port_probe(struct ddb_port * port)1836 static void ddb_port_probe(struct ddb_port *port)
1837 {
1838 struct ddb *dev = port->dev;
1839 u32 l = port->lnr;
1840 struct ddb_link *link = &dev->link[l];
1841 u8 id, type;
1842
1843 port->name = "NO MODULE";
1844 port->type_name = "NONE";
1845 port->class = DDB_PORT_NONE;
1846
1847 /* Handle missing ports and ports without I2C */
1848
1849 if (dummy_tuner && !port->nr &&
1850 link->ids.device == 0x0005) {
1851 port->name = "DUMMY";
1852 port->class = DDB_PORT_TUNER;
1853 port->type = DDB_TUNER_DUMMY;
1854 port->type_name = "DUMMY";
1855 return;
1856 }
1857
1858 if (port->nr == ts_loop) {
1859 port->name = "TS LOOP";
1860 port->class = DDB_PORT_LOOP;
1861 return;
1862 }
1863
1864 if (port->nr == 1 && link->info->type == DDB_OCTOPUS_CI &&
1865 link->info->i2c_mask == 1) {
1866 port->name = "NO TAB";
1867 port->class = DDB_PORT_NONE;
1868 return;
1869 }
1870
1871 if (link->info->type == DDB_OCTOPUS_MAX) {
1872 port->name = "DUAL DVB-S2 MAX";
1873 port->type_name = "MXL5XX";
1874 port->class = DDB_PORT_TUNER;
1875 port->type = DDB_TUNER_MXL5XX;
1876 if (port->i2c)
1877 ddbwritel(dev, I2C_SPEED_400,
1878 port->i2c->regs + I2C_TIMING);
1879 return;
1880 }
1881
1882 if (link->info->type == DDB_OCTOPUS_MCI) {
1883 if (port->nr >= link->info->mci_ports)
1884 return;
1885 port->name = "DUAL MCI";
1886 port->type_name = "MCI";
1887 port->class = DDB_PORT_TUNER;
1888 port->type = DDB_TUNER_MCI + link->info->mci_type;
1889 return;
1890 }
1891
1892 if (port->nr > 1 && link->info->type == DDB_OCTOPUS_CI) {
1893 port->name = "CI internal";
1894 port->type_name = "INTERNAL";
1895 port->class = DDB_PORT_CI;
1896 port->type = DDB_CI_INTERNAL;
1897 }
1898
1899 if (!port->i2c)
1900 return;
1901
1902 /* Probe ports with I2C */
1903
1904 if (port_has_cxd(port, &id)) {
1905 if (id == 1) {
1906 port->name = "CI";
1907 port->type_name = "CXD2099";
1908 port->class = DDB_PORT_CI;
1909 port->type = DDB_CI_EXTERNAL_SONY;
1910 ddbwritel(dev, I2C_SPEED_400,
1911 port->i2c->regs + I2C_TIMING);
1912 } else {
1913 dev_info(dev->dev, "Port %d: Uninitialized DuoFlex\n",
1914 port->nr);
1915 return;
1916 }
1917 } else if (port_has_xo2(port, &type, &id)) {
1918 ddbwritel(dev, I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1919 /*dev_info(dev->dev, "XO2 ID %02x\n", id);*/
1920 if (type == 2) {
1921 port->name = "DuoFlex CI";
1922 port->class = DDB_PORT_CI;
1923 port->type = DDB_CI_EXTERNAL_XO2;
1924 port->type_name = "CI_XO2";
1925 init_xo2_ci(port);
1926 return;
1927 }
1928 id >>= 2;
1929 if (id > 5) {
1930 port->name = "unknown XO2 DuoFlex";
1931 port->type_name = "UNKNOWN";
1932 } else {
1933 port->name = xo2names[id];
1934 port->class = DDB_PORT_TUNER;
1935 port->type = DDB_TUNER_XO2 + id;
1936 port->type_name = xo2types[id];
1937 init_xo2(port);
1938 }
1939 } else if (port_has_cxd28xx(port, &id)) {
1940 switch (id) {
1941 case 0xa4:
1942 port->name = "DUAL DVB-C2T2 CXD2843";
1943 port->type = DDB_TUNER_DVBC2T2_SONY_P;
1944 port->type_name = "DVBC2T2_SONY";
1945 break;
1946 case 0xb1:
1947 port->name = "DUAL DVB-CT2 CXD2837";
1948 port->type = DDB_TUNER_DVBCT2_SONY_P;
1949 port->type_name = "DVBCT2_SONY";
1950 break;
1951 case 0xb0:
1952 port->name = "DUAL ISDB-T CXD2838";
1953 port->type = DDB_TUNER_ISDBT_SONY_P;
1954 port->type_name = "ISDBT_SONY";
1955 break;
1956 case 0xc1:
1957 port->name = "DUAL DVB-C2T2 ISDB-T CXD2854";
1958 port->type = DDB_TUNER_DVBC2T2I_SONY_P;
1959 port->type_name = "DVBC2T2I_ISDBT_SONY";
1960 break;
1961 default:
1962 return;
1963 }
1964 port->class = DDB_PORT_TUNER;
1965 ddbwritel(dev, I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1966 } else if (port_has_stv0900(port)) {
1967 port->name = "DUAL DVB-S2";
1968 port->class = DDB_PORT_TUNER;
1969 port->type = DDB_TUNER_DVBS_ST;
1970 port->type_name = "DVBS_ST";
1971 ddbwritel(dev, I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1972 } else if (port_has_stv0900_aa(port, &id)) {
1973 port->name = "DUAL DVB-S2";
1974 port->class = DDB_PORT_TUNER;
1975 if (id == 0x51) {
1976 if (port->nr == 0 &&
1977 link->info->ts_quirks & TS_QUIRK_REVERSED)
1978 port->type = DDB_TUNER_DVBS_STV0910_PR;
1979 else
1980 port->type = DDB_TUNER_DVBS_STV0910_P;
1981 port->type_name = "DVBS_ST_0910";
1982 } else {
1983 port->type = DDB_TUNER_DVBS_ST_AA;
1984 port->type_name = "DVBS_ST_AA";
1985 }
1986 ddbwritel(dev, I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1987 } else if (port_has_drxks(port)) {
1988 port->name = "DUAL DVB-C/T";
1989 port->class = DDB_PORT_TUNER;
1990 port->type = DDB_TUNER_DVBCT_TR;
1991 port->type_name = "DVBCT_TR";
1992 ddbwritel(dev, I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1993 } else if (port_has_stv0367(port)) {
1994 port->name = "DUAL DVB-C/T";
1995 port->class = DDB_PORT_TUNER;
1996 port->type = DDB_TUNER_DVBCT_ST;
1997 port->type_name = "DVBCT_ST";
1998 ddbwritel(dev, I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1999 } else if (port_has_encti(port)) {
2000 port->name = "ENCTI";
2001 port->class = DDB_PORT_LOOP;
2002 }
2003 }
2004
2005 /****************************************************************************/
2006 /****************************************************************************/
2007 /****************************************************************************/
2008
ddb_port_attach(struct ddb_port * port)2009 static int ddb_port_attach(struct ddb_port *port)
2010 {
2011 int ret = 0;
2012
2013 switch (port->class) {
2014 case DDB_PORT_TUNER:
2015 ret = dvb_input_attach(port->input[0]);
2016 if (ret < 0)
2017 break;
2018 ret = dvb_input_attach(port->input[1]);
2019 if (ret < 0) {
2020 dvb_input_detach(port->input[0]);
2021 break;
2022 }
2023 port->input[0]->redi = port->input[0];
2024 port->input[1]->redi = port->input[1];
2025 break;
2026 case DDB_PORT_CI:
2027 ret = ddb_ci_attach(port, ci_bitrate);
2028 if (ret < 0)
2029 break;
2030 fallthrough;
2031 case DDB_PORT_LOOP:
2032 ret = dvb_register_device(port->dvb[0].adap,
2033 &port->dvb[0].dev,
2034 &dvbdev_ci, (void *)port->output,
2035 DVB_DEVICE_SEC, 0);
2036 break;
2037 default:
2038 break;
2039 }
2040 if (ret < 0)
2041 dev_err(port->dev->dev, "port_attach on port %d failed\n",
2042 port->nr);
2043 return ret;
2044 }
2045
ddb_ports_attach(struct ddb * dev)2046 int ddb_ports_attach(struct ddb *dev)
2047 {
2048 int i, numports, err_ports = 0, ret = 0;
2049 struct ddb_port *port;
2050
2051 if (dev->port_num) {
2052 ret = dvb_register_adapters(dev);
2053 if (ret < 0) {
2054 dev_err(dev->dev, "Registering adapters failed. Check DVB_MAX_ADAPTERS in config.\n");
2055 return ret;
2056 }
2057 }
2058
2059 numports = dev->port_num;
2060
2061 for (i = 0; i < dev->port_num; i++) {
2062 port = &dev->port[i];
2063 if (port->class != DDB_PORT_NONE) {
2064 ret = ddb_port_attach(port);
2065 if (ret)
2066 err_ports++;
2067 } else {
2068 numports--;
2069 }
2070 }
2071
2072 if (err_ports) {
2073 if (err_ports == numports) {
2074 dev_err(dev->dev, "All connected ports failed to initialise!\n");
2075 return -ENODEV;
2076 }
2077
2078 dev_warn(dev->dev, "%d of %d connected ports failed to initialise!\n",
2079 err_ports, numports);
2080 }
2081
2082 return 0;
2083 }
2084
ddb_ports_detach(struct ddb * dev)2085 void ddb_ports_detach(struct ddb *dev)
2086 {
2087 int i;
2088 struct ddb_port *port;
2089
2090 for (i = 0; i < dev->port_num; i++) {
2091 port = &dev->port[i];
2092
2093 switch (port->class) {
2094 case DDB_PORT_TUNER:
2095 dvb_input_detach(port->input[1]);
2096 dvb_input_detach(port->input[0]);
2097 break;
2098 case DDB_PORT_CI:
2099 case DDB_PORT_LOOP:
2100 ddb_ci_detach(port);
2101 break;
2102 }
2103 }
2104 dvb_unregister_adapters(dev);
2105 }
2106
2107 /* Copy input DMA pointers to output DMA and ACK. */
2108
input_write_output(struct ddb_input * input,struct ddb_output * output)2109 static void input_write_output(struct ddb_input *input,
2110 struct ddb_output *output)
2111 {
2112 ddbwritel(output->port->dev,
2113 input->dma->stat, DMA_BUFFER_ACK(output->dma));
2114 output->dma->cbuf = (input->dma->stat >> 11) & 0x1f;
2115 output->dma->coff = (input->dma->stat & 0x7ff) << 7;
2116 }
2117
output_ack_input(struct ddb_output * output,struct ddb_input * input)2118 static void output_ack_input(struct ddb_output *output,
2119 struct ddb_input *input)
2120 {
2121 ddbwritel(input->port->dev,
2122 output->dma->stat, DMA_BUFFER_ACK(input->dma));
2123 }
2124
input_write_dvb(struct ddb_input * input,struct ddb_input * input2)2125 static void input_write_dvb(struct ddb_input *input,
2126 struct ddb_input *input2)
2127 {
2128 struct ddb_dvb *dvb = &input2->port->dvb[input2->nr & 1];
2129 struct ddb_dma *dma, *dma2;
2130 struct ddb *dev = input->port->dev;
2131 int ack = 1;
2132
2133 dma = input->dma;
2134 dma2 = input->dma;
2135 /*
2136 * if there also is an output connected, do not ACK.
2137 * input_write_output will ACK.
2138 */
2139 if (input->redo) {
2140 dma2 = input->redo->dma;
2141 ack = 0;
2142 }
2143 while (dma->cbuf != ((dma->stat >> 11) & 0x1f) ||
2144 (4 & dma->ctrl)) {
2145 if (4 & dma->ctrl) {
2146 /* dev_err(dev->dev, "Overflow dma %d\n", dma->nr); */
2147 ack = 1;
2148 }
2149 if (alt_dma)
2150 dma_sync_single_for_cpu(dev->dev, dma2->pbuf[dma->cbuf],
2151 dma2->size, DMA_FROM_DEVICE);
2152 dvb_dmx_swfilter_packets(&dvb->demux,
2153 dma2->vbuf[dma->cbuf],
2154 dma2->size / 188);
2155 dma->cbuf = (dma->cbuf + 1) % dma2->num;
2156 if (ack)
2157 ddbwritel(dev, (dma->cbuf << 11),
2158 DMA_BUFFER_ACK(dma));
2159 dma->stat = safe_ddbreadl(dev, DMA_BUFFER_CURRENT(dma));
2160 dma->ctrl = safe_ddbreadl(dev, DMA_BUFFER_CONTROL(dma));
2161 }
2162 }
2163
input_work(struct work_struct * work)2164 static void input_work(struct work_struct *work)
2165 {
2166 struct ddb_dma *dma = container_of(work, struct ddb_dma, work);
2167 struct ddb_input *input = (struct ddb_input *)dma->io;
2168 struct ddb *dev = input->port->dev;
2169 unsigned long flags;
2170
2171 spin_lock_irqsave(&dma->lock, flags);
2172 if (!dma->running) {
2173 spin_unlock_irqrestore(&dma->lock, flags);
2174 return;
2175 }
2176 dma->stat = ddbreadl(dev, DMA_BUFFER_CURRENT(dma));
2177 dma->ctrl = ddbreadl(dev, DMA_BUFFER_CONTROL(dma));
2178
2179 if (input->redi)
2180 input_write_dvb(input, input->redi);
2181 if (input->redo)
2182 input_write_output(input, input->redo);
2183 wake_up(&dma->wq);
2184 spin_unlock_irqrestore(&dma->lock, flags);
2185 }
2186
input_handler(void * data)2187 static void input_handler(void *data)
2188 {
2189 struct ddb_input *input = (struct ddb_input *)data;
2190 struct ddb_dma *dma = input->dma;
2191
2192 queue_work(ddb_wq, &dma->work);
2193 }
2194
output_work(struct work_struct * work)2195 static void output_work(struct work_struct *work)
2196 {
2197 struct ddb_dma *dma = container_of(work, struct ddb_dma, work);
2198 struct ddb_output *output = (struct ddb_output *)dma->io;
2199 struct ddb *dev = output->port->dev;
2200 unsigned long flags;
2201
2202 spin_lock_irqsave(&dma->lock, flags);
2203 if (!dma->running)
2204 goto unlock_exit;
2205 dma->stat = ddbreadl(dev, DMA_BUFFER_CURRENT(dma));
2206 dma->ctrl = ddbreadl(dev, DMA_BUFFER_CONTROL(dma));
2207 if (output->redi)
2208 output_ack_input(output, output->redi);
2209 wake_up(&dma->wq);
2210 unlock_exit:
2211 spin_unlock_irqrestore(&dma->lock, flags);
2212 }
2213
output_handler(void * data)2214 static void output_handler(void *data)
2215 {
2216 struct ddb_output *output = (struct ddb_output *)data;
2217 struct ddb_dma *dma = output->dma;
2218
2219 queue_work(ddb_wq, &dma->work);
2220 }
2221
2222 /****************************************************************************/
2223 /****************************************************************************/
2224
io_regmap(struct ddb_io * io,int link)2225 static const struct ddb_regmap *io_regmap(struct ddb_io *io, int link)
2226 {
2227 const struct ddb_info *info;
2228
2229 if (link)
2230 info = io->port->dev->link[io->port->lnr].info;
2231 else
2232 info = io->port->dev->link[0].info;
2233
2234 if (!info)
2235 return NULL;
2236
2237 return info->regmap;
2238 }
2239
ddb_dma_init(struct ddb_io * io,int nr,int out)2240 static void ddb_dma_init(struct ddb_io *io, int nr, int out)
2241 {
2242 struct ddb_dma *dma;
2243 const struct ddb_regmap *rm = io_regmap(io, 0);
2244
2245 dma = out ? &io->port->dev->odma[nr] : &io->port->dev->idma[nr];
2246 io->dma = dma;
2247 dma->io = io;
2248
2249 spin_lock_init(&dma->lock);
2250 init_waitqueue_head(&dma->wq);
2251 if (out) {
2252 INIT_WORK(&dma->work, output_work);
2253 dma->regs = rm->odma->base + rm->odma->size * nr;
2254 dma->bufregs = rm->odma_buf->base + rm->odma_buf->size * nr;
2255 dma->num = dma_buf_num;
2256 dma->size = dma_buf_size * 128 * 47;
2257 dma->div = 1;
2258 } else {
2259 INIT_WORK(&dma->work, input_work);
2260 dma->regs = rm->idma->base + rm->idma->size * nr;
2261 dma->bufregs = rm->idma_buf->base + rm->idma_buf->size * nr;
2262 dma->num = dma_buf_num;
2263 dma->size = dma_buf_size * 128 * 47;
2264 dma->div = 1;
2265 }
2266 ddbwritel(io->port->dev, 0, DMA_BUFFER_ACK(dma));
2267 dev_dbg(io->port->dev->dev, "init link %u, io %u, dma %u, dmaregs %08x bufregs %08x\n",
2268 io->port->lnr, io->nr, nr, dma->regs, dma->bufregs);
2269 }
2270
ddb_input_init(struct ddb_port * port,int nr,int pnr,int anr)2271 static void ddb_input_init(struct ddb_port *port, int nr, int pnr, int anr)
2272 {
2273 struct ddb *dev = port->dev;
2274 struct ddb_input *input = &dev->input[anr];
2275 const struct ddb_regmap *rm;
2276
2277 port->input[pnr] = input;
2278 input->nr = nr;
2279 input->port = port;
2280 rm = io_regmap(input, 1);
2281 input->regs = DDB_LINK_TAG(port->lnr) |
2282 (rm->input->base + rm->input->size * nr);
2283 dev_dbg(dev->dev, "init link %u, input %u, regs %08x\n",
2284 port->lnr, nr, input->regs);
2285
2286 if (dev->has_dma) {
2287 const struct ddb_regmap *rm0 = io_regmap(input, 0);
2288 u32 base = rm0->irq_base_idma;
2289 u32 dma_nr = nr;
2290
2291 if (port->lnr)
2292 dma_nr += 32 + (port->lnr - 1) * 8;
2293
2294 dev_dbg(dev->dev, "init link %u, input %u, handler %u\n",
2295 port->lnr, nr, dma_nr + base);
2296
2297 ddb_irq_set(dev, 0, dma_nr + base, &input_handler, input);
2298 ddb_dma_init(input, dma_nr, 0);
2299 }
2300 }
2301
ddb_output_init(struct ddb_port * port,int nr)2302 static void ddb_output_init(struct ddb_port *port, int nr)
2303 {
2304 struct ddb *dev = port->dev;
2305 struct ddb_output *output = &dev->output[nr];
2306 const struct ddb_regmap *rm;
2307
2308 port->output = output;
2309 output->nr = nr;
2310 output->port = port;
2311 rm = io_regmap(output, 1);
2312 output->regs = DDB_LINK_TAG(port->lnr) |
2313 (rm->output->base + rm->output->size * nr);
2314
2315 dev_dbg(dev->dev, "init link %u, output %u, regs %08x\n",
2316 port->lnr, nr, output->regs);
2317
2318 if (dev->has_dma) {
2319 const struct ddb_regmap *rm0 = io_regmap(output, 0);
2320 u32 base = rm0->irq_base_odma;
2321
2322 ddb_irq_set(dev, 0, nr + base, &output_handler, output);
2323 ddb_dma_init(output, nr, 1);
2324 }
2325 }
2326
ddb_port_match_i2c(struct ddb_port * port)2327 static int ddb_port_match_i2c(struct ddb_port *port)
2328 {
2329 struct ddb *dev = port->dev;
2330 u32 i;
2331
2332 for (i = 0; i < dev->i2c_num; i++) {
2333 if (dev->i2c[i].link == port->lnr &&
2334 dev->i2c[i].nr == port->nr) {
2335 port->i2c = &dev->i2c[i];
2336 return 1;
2337 }
2338 }
2339 return 0;
2340 }
2341
ddb_port_match_link_i2c(struct ddb_port * port)2342 static int ddb_port_match_link_i2c(struct ddb_port *port)
2343 {
2344 struct ddb *dev = port->dev;
2345 u32 i;
2346
2347 for (i = 0; i < dev->i2c_num; i++) {
2348 if (dev->i2c[i].link == port->lnr) {
2349 port->i2c = &dev->i2c[i];
2350 return 1;
2351 }
2352 }
2353 return 0;
2354 }
2355
ddb_ports_init(struct ddb * dev)2356 void ddb_ports_init(struct ddb *dev)
2357 {
2358 u32 i, l, p;
2359 struct ddb_port *port;
2360 const struct ddb_info *info;
2361 const struct ddb_regmap *rm;
2362
2363 for (p = l = 0; l < DDB_MAX_LINK; l++) {
2364 info = dev->link[l].info;
2365 if (!info)
2366 continue;
2367 rm = info->regmap;
2368 if (!rm)
2369 continue;
2370 for (i = 0; i < info->port_num; i++, p++) {
2371 port = &dev->port[p];
2372 port->dev = dev;
2373 port->nr = i;
2374 port->lnr = l;
2375 port->pnr = p;
2376 port->gap = 0xffffffff;
2377 port->obr = ci_bitrate;
2378 mutex_init(&port->i2c_gate_lock);
2379
2380 if (!ddb_port_match_i2c(port)) {
2381 if (info->type == DDB_OCTOPUS_MAX)
2382 ddb_port_match_link_i2c(port);
2383 }
2384
2385 ddb_port_probe(port);
2386
2387 port->dvb[0].adap = &dev->adap[2 * p];
2388 port->dvb[1].adap = &dev->adap[2 * p + 1];
2389
2390 if (port->class == DDB_PORT_NONE && i && p &&
2391 dev->port[p - 1].type == DDB_CI_EXTERNAL_XO2) {
2392 port->class = DDB_PORT_CI;
2393 port->type = DDB_CI_EXTERNAL_XO2_B;
2394 port->name = "DuoFlex CI_B";
2395 port->i2c = dev->port[p - 1].i2c;
2396 }
2397
2398 dev_info(dev->dev, "Port %u: Link %u, Link Port %u (TAB %u): %s\n",
2399 port->pnr, port->lnr, port->nr, port->nr + 1,
2400 port->name);
2401
2402 if (port->class == DDB_PORT_CI &&
2403 port->type == DDB_CI_EXTERNAL_XO2) {
2404 ddb_input_init(port, 2 * i, 0, 2 * i);
2405 ddb_output_init(port, i);
2406 continue;
2407 }
2408
2409 if (port->class == DDB_PORT_CI &&
2410 port->type == DDB_CI_EXTERNAL_XO2_B) {
2411 ddb_input_init(port, 2 * i - 1, 0, 2 * i - 1);
2412 ddb_output_init(port, i);
2413 continue;
2414 }
2415
2416 if (port->class == DDB_PORT_NONE)
2417 continue;
2418
2419 switch (dev->link[l].info->type) {
2420 case DDB_OCTOPUS_CI:
2421 if (i >= 2) {
2422 ddb_input_init(port, 2 + i, 0, 2 + i);
2423 ddb_input_init(port, 4 + i, 1, 4 + i);
2424 ddb_output_init(port, i);
2425 break;
2426 }
2427 fallthrough;
2428 case DDB_OCTOPUS:
2429 ddb_input_init(port, 2 * i, 0, 2 * i);
2430 ddb_input_init(port, 2 * i + 1, 1, 2 * i + 1);
2431 ddb_output_init(port, i);
2432 break;
2433 case DDB_OCTOPUS_MAX:
2434 case DDB_OCTOPUS_MAX_CT:
2435 case DDB_OCTOPUS_MCI:
2436 ddb_input_init(port, 2 * i, 0, 2 * p);
2437 ddb_input_init(port, 2 * i + 1, 1, 2 * p + 1);
2438 break;
2439 default:
2440 break;
2441 }
2442 }
2443 }
2444 dev->port_num = p;
2445 }
2446
ddb_ports_release(struct ddb * dev)2447 void ddb_ports_release(struct ddb *dev)
2448 {
2449 int i;
2450 struct ddb_port *port;
2451
2452 for (i = 0; i < dev->port_num; i++) {
2453 port = &dev->port[i];
2454 if (port->input[0] && port->input[0]->dma)
2455 cancel_work_sync(&port->input[0]->dma->work);
2456 if (port->input[1] && port->input[1]->dma)
2457 cancel_work_sync(&port->input[1]->dma->work);
2458 if (port->output && port->output->dma)
2459 cancel_work_sync(&port->output->dma->work);
2460 }
2461 }
2462
2463 /****************************************************************************/
2464 /****************************************************************************/
2465 /****************************************************************************/
2466
2467 #define IRQ_HANDLE(_nr) \
2468 do { if ((s & (1UL << ((_nr) & 0x1f))) && \
2469 dev->link[0].irq[_nr].handler) \
2470 dev->link[0].irq[_nr].handler(dev->link[0].irq[_nr].data); } \
2471 while (0)
2472
2473 #define IRQ_HANDLE_NIBBLE(_shift) { \
2474 if (s & (0x0000000f << ((_shift) & 0x1f))) { \
2475 IRQ_HANDLE(0 + (_shift)); \
2476 IRQ_HANDLE(1 + (_shift)); \
2477 IRQ_HANDLE(2 + (_shift)); \
2478 IRQ_HANDLE(3 + (_shift)); \
2479 } \
2480 }
2481
2482 #define IRQ_HANDLE_BYTE(_shift) { \
2483 if (s & (0x000000ff << ((_shift) & 0x1f))) { \
2484 IRQ_HANDLE(0 + (_shift)); \
2485 IRQ_HANDLE(1 + (_shift)); \
2486 IRQ_HANDLE(2 + (_shift)); \
2487 IRQ_HANDLE(3 + (_shift)); \
2488 IRQ_HANDLE(4 + (_shift)); \
2489 IRQ_HANDLE(5 + (_shift)); \
2490 IRQ_HANDLE(6 + (_shift)); \
2491 IRQ_HANDLE(7 + (_shift)); \
2492 } \
2493 }
2494
irq_handle_msg(struct ddb * dev,u32 s)2495 static void irq_handle_msg(struct ddb *dev, u32 s)
2496 {
2497 dev->i2c_irq++;
2498 IRQ_HANDLE_NIBBLE(0);
2499 }
2500
irq_handle_io(struct ddb * dev,u32 s)2501 static void irq_handle_io(struct ddb *dev, u32 s)
2502 {
2503 dev->ts_irq++;
2504 IRQ_HANDLE_NIBBLE(4);
2505 IRQ_HANDLE_BYTE(8);
2506 IRQ_HANDLE_BYTE(16);
2507 IRQ_HANDLE_BYTE(24);
2508 }
2509
ddb_irq_handler0(int irq,void * dev_id)2510 irqreturn_t ddb_irq_handler0(int irq, void *dev_id)
2511 {
2512 struct ddb *dev = (struct ddb *)dev_id;
2513 u32 mask = 0x8fffff00;
2514 u32 s = mask & ddbreadl(dev, INTERRUPT_STATUS);
2515
2516 if (!s)
2517 return IRQ_NONE;
2518 do {
2519 if (s & 0x80000000)
2520 return IRQ_NONE;
2521 ddbwritel(dev, s, INTERRUPT_ACK);
2522 irq_handle_io(dev, s);
2523 } while ((s = mask & ddbreadl(dev, INTERRUPT_STATUS)));
2524
2525 return IRQ_HANDLED;
2526 }
2527
ddb_irq_handler1(int irq,void * dev_id)2528 irqreturn_t ddb_irq_handler1(int irq, void *dev_id)
2529 {
2530 struct ddb *dev = (struct ddb *)dev_id;
2531 u32 mask = 0x8000000f;
2532 u32 s = mask & ddbreadl(dev, INTERRUPT_STATUS);
2533
2534 if (!s)
2535 return IRQ_NONE;
2536 do {
2537 if (s & 0x80000000)
2538 return IRQ_NONE;
2539 ddbwritel(dev, s, INTERRUPT_ACK);
2540 irq_handle_msg(dev, s);
2541 } while ((s = mask & ddbreadl(dev, INTERRUPT_STATUS)));
2542
2543 return IRQ_HANDLED;
2544 }
2545
ddb_irq_handler(int irq,void * dev_id)2546 irqreturn_t ddb_irq_handler(int irq, void *dev_id)
2547 {
2548 struct ddb *dev = (struct ddb *)dev_id;
2549 u32 s = ddbreadl(dev, INTERRUPT_STATUS);
2550 int ret = IRQ_HANDLED;
2551
2552 if (!s)
2553 return IRQ_NONE;
2554 do {
2555 if (s & 0x80000000)
2556 return IRQ_NONE;
2557 ddbwritel(dev, s, INTERRUPT_ACK);
2558
2559 if (s & 0x0000000f)
2560 irq_handle_msg(dev, s);
2561 if (s & 0x0fffff00)
2562 irq_handle_io(dev, s);
2563 } while ((s = ddbreadl(dev, INTERRUPT_STATUS)));
2564
2565 return ret;
2566 }
2567
2568 /****************************************************************************/
2569 /****************************************************************************/
2570 /****************************************************************************/
2571
reg_wait(struct ddb * dev,u32 reg,u32 bit)2572 static int reg_wait(struct ddb *dev, u32 reg, u32 bit)
2573 {
2574 u32 count = 0;
2575
2576 while (safe_ddbreadl(dev, reg) & bit) {
2577 ndelay(10);
2578 if (++count == 100)
2579 return -1;
2580 }
2581 return 0;
2582 }
2583
flashio(struct ddb * dev,u32 lnr,u8 * wbuf,u32 wlen,u8 * rbuf,u32 rlen)2584 static int flashio(struct ddb *dev, u32 lnr, u8 *wbuf, u32 wlen, u8 *rbuf,
2585 u32 rlen)
2586 {
2587 u32 data, shift;
2588 u32 tag = DDB_LINK_TAG(lnr);
2589 struct ddb_link *link = &dev->link[lnr];
2590
2591 mutex_lock(&link->flash_mutex);
2592 if (wlen > 4)
2593 ddbwritel(dev, 1, tag | SPI_CONTROL);
2594 while (wlen > 4) {
2595 /* FIXME: check for big-endian */
2596 data = swab32(*(u32 *)wbuf);
2597 wbuf += 4;
2598 wlen -= 4;
2599 ddbwritel(dev, data, tag | SPI_DATA);
2600 if (reg_wait(dev, tag | SPI_CONTROL, 4))
2601 goto fail;
2602 }
2603 if (rlen)
2604 ddbwritel(dev, 0x0001 | ((wlen << (8 + 3)) & 0x1f00),
2605 tag | SPI_CONTROL);
2606 else
2607 ddbwritel(dev, 0x0003 | ((wlen << (8 + 3)) & 0x1f00),
2608 tag | SPI_CONTROL);
2609
2610 data = 0;
2611 shift = ((4 - wlen) * 8);
2612 while (wlen) {
2613 data <<= 8;
2614 data |= *wbuf;
2615 wlen--;
2616 wbuf++;
2617 }
2618 if (shift)
2619 data <<= shift;
2620 ddbwritel(dev, data, tag | SPI_DATA);
2621 if (reg_wait(dev, tag | SPI_CONTROL, 4))
2622 goto fail;
2623
2624 if (!rlen) {
2625 ddbwritel(dev, 0, tag | SPI_CONTROL);
2626 goto exit;
2627 }
2628 if (rlen > 4)
2629 ddbwritel(dev, 1, tag | SPI_CONTROL);
2630
2631 while (rlen > 4) {
2632 ddbwritel(dev, 0xffffffff, tag | SPI_DATA);
2633 if (reg_wait(dev, tag | SPI_CONTROL, 4))
2634 goto fail;
2635 data = ddbreadl(dev, tag | SPI_DATA);
2636 *(u32 *)rbuf = swab32(data);
2637 rbuf += 4;
2638 rlen -= 4;
2639 }
2640 ddbwritel(dev, 0x0003 | ((rlen << (8 + 3)) & 0x1F00),
2641 tag | SPI_CONTROL);
2642 ddbwritel(dev, 0xffffffff, tag | SPI_DATA);
2643 if (reg_wait(dev, tag | SPI_CONTROL, 4))
2644 goto fail;
2645
2646 data = ddbreadl(dev, tag | SPI_DATA);
2647 ddbwritel(dev, 0, tag | SPI_CONTROL);
2648
2649 if (rlen < 4)
2650 data <<= ((4 - rlen) * 8);
2651
2652 while (rlen > 0) {
2653 *rbuf = ((data >> 24) & 0xff);
2654 data <<= 8;
2655 rbuf++;
2656 rlen--;
2657 }
2658 exit:
2659 mutex_unlock(&link->flash_mutex);
2660 return 0;
2661 fail:
2662 mutex_unlock(&link->flash_mutex);
2663 return -1;
2664 }
2665
ddbridge_flashread(struct ddb * dev,u32 link,u8 * buf,u32 addr,u32 len)2666 int ddbridge_flashread(struct ddb *dev, u32 link, u8 *buf, u32 addr, u32 len)
2667 {
2668 u8 cmd[4] = {0x03, (addr >> 16) & 0xff,
2669 (addr >> 8) & 0xff, addr & 0xff};
2670
2671 return flashio(dev, link, cmd, 4, buf, len);
2672 }
2673
2674 /*
2675 * TODO/FIXME: add/implement IOCTLs from upstream driver
2676 */
2677
2678 #define DDB_NAME "ddbridge"
2679
2680 static u32 ddb_num;
2681 static int ddb_major;
2682 static DEFINE_MUTEX(ddb_mutex);
2683
ddb_release(struct inode * inode,struct file * file)2684 static int ddb_release(struct inode *inode, struct file *file)
2685 {
2686 struct ddb *dev = file->private_data;
2687
2688 dev->ddb_dev_users--;
2689 return 0;
2690 }
2691
ddb_open(struct inode * inode,struct file * file)2692 static int ddb_open(struct inode *inode, struct file *file)
2693 {
2694 struct ddb *dev = ddbs[iminor(inode)];
2695
2696 if (dev->ddb_dev_users)
2697 return -EBUSY;
2698 dev->ddb_dev_users++;
2699 file->private_data = dev;
2700 return 0;
2701 }
2702
ddb_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2703 static long ddb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2704 {
2705 struct ddb *dev = file->private_data;
2706
2707 dev_warn(dev->dev, "DDB IOCTLs unsupported (cmd: %d, arg: %lu)\n",
2708 cmd, arg);
2709
2710 return -ENOTTY;
2711 }
2712
2713 static const struct file_operations ddb_fops = {
2714 .unlocked_ioctl = ddb_ioctl,
2715 .open = ddb_open,
2716 .release = ddb_release,
2717 };
2718
ddb_devnode(const struct device * device,umode_t * mode)2719 static char *ddb_devnode(const struct device *device, umode_t *mode)
2720 {
2721 const struct ddb *dev = dev_get_drvdata(device);
2722
2723 return kasprintf(GFP_KERNEL, "ddbridge/card%d", dev->nr);
2724 }
2725
2726 #define __ATTR_MRO(_name, _show) { \
2727 .attr = { .name = __stringify(_name), .mode = 0444 }, \
2728 .show = _show, \
2729 }
2730
2731 #define __ATTR_MWO(_name, _store) { \
2732 .attr = { .name = __stringify(_name), .mode = 0222 }, \
2733 .store = _store, \
2734 }
2735
ports_show(struct device * device,struct device_attribute * attr,char * buf)2736 static ssize_t ports_show(struct device *device,
2737 struct device_attribute *attr, char *buf)
2738 {
2739 struct ddb *dev = dev_get_drvdata(device);
2740
2741 return sprintf(buf, "%d\n", dev->port_num);
2742 }
2743
ts_irq_show(struct device * device,struct device_attribute * attr,char * buf)2744 static ssize_t ts_irq_show(struct device *device,
2745 struct device_attribute *attr, char *buf)
2746 {
2747 struct ddb *dev = dev_get_drvdata(device);
2748
2749 return sprintf(buf, "%d\n", dev->ts_irq);
2750 }
2751
i2c_irq_show(struct device * device,struct device_attribute * attr,char * buf)2752 static ssize_t i2c_irq_show(struct device *device,
2753 struct device_attribute *attr, char *buf)
2754 {
2755 struct ddb *dev = dev_get_drvdata(device);
2756
2757 return sprintf(buf, "%d\n", dev->i2c_irq);
2758 }
2759
fan_show(struct device * device,struct device_attribute * attr,char * buf)2760 static ssize_t fan_show(struct device *device,
2761 struct device_attribute *attr, char *buf)
2762 {
2763 struct ddb *dev = dev_get_drvdata(device);
2764 u32 val;
2765
2766 val = ddbreadl(dev, GPIO_OUTPUT) & 1;
2767 return sprintf(buf, "%d\n", val);
2768 }
2769
fan_store(struct device * device,struct device_attribute * d,const char * buf,size_t count)2770 static ssize_t fan_store(struct device *device, struct device_attribute *d,
2771 const char *buf, size_t count)
2772 {
2773 struct ddb *dev = dev_get_drvdata(device);
2774 u32 val;
2775
2776 if (sscanf(buf, "%u\n", &val) != 1)
2777 return -EINVAL;
2778 ddbwritel(dev, 1, GPIO_DIRECTION);
2779 ddbwritel(dev, val & 1, GPIO_OUTPUT);
2780 return count;
2781 }
2782
fanspeed_show(struct device * device,struct device_attribute * attr,char * buf)2783 static ssize_t fanspeed_show(struct device *device,
2784 struct device_attribute *attr, char *buf)
2785 {
2786 struct ddb *dev = dev_get_drvdata(device);
2787 int num = attr->attr.name[8] - 0x30;
2788 struct ddb_link *link = &dev->link[num];
2789 u32 spd;
2790
2791 spd = ddblreadl(link, TEMPMON_FANCONTROL) & 0xff;
2792 return sprintf(buf, "%u\n", spd * 100);
2793 }
2794
temp_show(struct device * device,struct device_attribute * attr,char * buf)2795 static ssize_t temp_show(struct device *device,
2796 struct device_attribute *attr, char *buf)
2797 {
2798 struct ddb *dev = dev_get_drvdata(device);
2799 struct ddb_link *link = &dev->link[0];
2800 struct i2c_adapter *adap;
2801 int temp, temp2;
2802 u8 tmp[2];
2803
2804 if (!link->info->temp_num)
2805 return sprintf(buf, "no sensor\n");
2806 adap = &dev->i2c[link->info->temp_bus].adap;
2807 if (i2c_read_regs(adap, 0x48, 0, tmp, 2) < 0)
2808 return sprintf(buf, "read_error\n");
2809 temp = (tmp[0] << 3) | (tmp[1] >> 5);
2810 temp *= 125;
2811 if (link->info->temp_num == 2) {
2812 if (i2c_read_regs(adap, 0x49, 0, tmp, 2) < 0)
2813 return sprintf(buf, "read_error\n");
2814 temp2 = (tmp[0] << 3) | (tmp[1] >> 5);
2815 temp2 *= 125;
2816 return sprintf(buf, "%d %d\n", temp, temp2);
2817 }
2818 return sprintf(buf, "%d\n", temp);
2819 }
2820
ctemp_show(struct device * device,struct device_attribute * attr,char * buf)2821 static ssize_t ctemp_show(struct device *device,
2822 struct device_attribute *attr, char *buf)
2823 {
2824 struct ddb *dev = dev_get_drvdata(device);
2825 struct i2c_adapter *adap;
2826 int temp;
2827 u8 tmp[2];
2828 int num = attr->attr.name[4] - 0x30;
2829
2830 adap = &dev->i2c[num].adap;
2831 if (!adap)
2832 return 0;
2833 if (i2c_read_regs(adap, 0x49, 0, tmp, 2) < 0)
2834 if (i2c_read_regs(adap, 0x4d, 0, tmp, 2) < 0)
2835 return sprintf(buf, "no sensor\n");
2836 temp = tmp[0] * 1000;
2837 return sprintf(buf, "%d\n", temp);
2838 }
2839
led_show(struct device * device,struct device_attribute * attr,char * buf)2840 static ssize_t led_show(struct device *device,
2841 struct device_attribute *attr, char *buf)
2842 {
2843 struct ddb *dev = dev_get_drvdata(device);
2844 int num = attr->attr.name[3] - 0x30;
2845
2846 return sprintf(buf, "%d\n", dev->leds & (1 << num) ? 1 : 0);
2847 }
2848
ddb_set_led(struct ddb * dev,int num,int val)2849 static void ddb_set_led(struct ddb *dev, int num, int val)
2850 {
2851 if (!dev->link[0].info->led_num)
2852 return;
2853 switch (dev->port[num].class) {
2854 case DDB_PORT_TUNER:
2855 switch (dev->port[num].type) {
2856 case DDB_TUNER_DVBS_ST:
2857 i2c_write_reg16(&dev->i2c[num].adap,
2858 0x69, 0xf14c, val ? 2 : 0);
2859 break;
2860 case DDB_TUNER_DVBCT_ST:
2861 i2c_write_reg16(&dev->i2c[num].adap,
2862 0x1f, 0xf00e, 0);
2863 i2c_write_reg16(&dev->i2c[num].adap,
2864 0x1f, 0xf00f, val ? 1 : 0);
2865 break;
2866 case DDB_TUNER_XO2 ... DDB_TUNER_DVBC2T2I_SONY:
2867 {
2868 u8 v;
2869
2870 i2c_read_reg(&dev->i2c[num].adap, 0x10, 0x08, &v);
2871 v = (v & ~0x10) | (val ? 0x10 : 0);
2872 i2c_write_reg(&dev->i2c[num].adap, 0x10, 0x08, v);
2873 break;
2874 }
2875 default:
2876 break;
2877 }
2878 break;
2879 }
2880 }
2881
led_store(struct device * device,struct device_attribute * attr,const char * buf,size_t count)2882 static ssize_t led_store(struct device *device,
2883 struct device_attribute *attr,
2884 const char *buf, size_t count)
2885 {
2886 struct ddb *dev = dev_get_drvdata(device);
2887 int num = attr->attr.name[3] - 0x30;
2888 u32 val;
2889
2890 if (sscanf(buf, "%u\n", &val) != 1)
2891 return -EINVAL;
2892 if (val)
2893 dev->leds |= (1 << num);
2894 else
2895 dev->leds &= ~(1 << num);
2896 ddb_set_led(dev, num, val);
2897 return count;
2898 }
2899
snr_show(struct device * device,struct device_attribute * attr,char * buf)2900 static ssize_t snr_show(struct device *device,
2901 struct device_attribute *attr, char *buf)
2902 {
2903 struct ddb *dev = dev_get_drvdata(device);
2904 char snr[32];
2905 int num = attr->attr.name[3] - 0x30;
2906
2907 if (dev->port[num].type >= DDB_TUNER_XO2) {
2908 if (i2c_read_regs(&dev->i2c[num].adap, 0x10, 0x10, snr, 16) < 0)
2909 return sprintf(buf, "NO SNR\n");
2910 snr[16] = 0;
2911 } else {
2912 /* serial number at 0x100-0x11f */
2913 if (i2c_read_regs16(&dev->i2c[num].adap,
2914 0x57, 0x100, snr, 32) < 0)
2915 if (i2c_read_regs16(&dev->i2c[num].adap,
2916 0x50, 0x100, snr, 32) < 0)
2917 return sprintf(buf, "NO SNR\n");
2918 snr[31] = 0; /* in case it is not terminated on EEPROM */
2919 }
2920 return sprintf(buf, "%s\n", snr);
2921 }
2922
bsnr_show(struct device * device,struct device_attribute * attr,char * buf)2923 static ssize_t bsnr_show(struct device *device,
2924 struct device_attribute *attr, char *buf)
2925 {
2926 struct ddb *dev = dev_get_drvdata(device);
2927 char snr[16];
2928
2929 ddbridge_flashread(dev, 0, snr, 0x10, 15);
2930 snr[15] = 0; /* in case it is not terminated on EEPROM */
2931 return sprintf(buf, "%s\n", snr);
2932 }
2933
bpsnr_show(struct device * device,struct device_attribute * attr,char * buf)2934 static ssize_t bpsnr_show(struct device *device,
2935 struct device_attribute *attr, char *buf)
2936 {
2937 struct ddb *dev = dev_get_drvdata(device);
2938 unsigned char snr[32];
2939
2940 if (!dev->i2c_num)
2941 return 0;
2942
2943 if (i2c_read_regs16(&dev->i2c[0].adap,
2944 0x50, 0x0000, snr, 32) < 0 ||
2945 snr[0] == 0xff)
2946 return sprintf(buf, "NO SNR\n");
2947 snr[31] = 0; /* in case it is not terminated on EEPROM */
2948 return sprintf(buf, "%s\n", snr);
2949 }
2950
redirect_show(struct device * device,struct device_attribute * attr,char * buf)2951 static ssize_t redirect_show(struct device *device,
2952 struct device_attribute *attr, char *buf)
2953 {
2954 return 0;
2955 }
2956
redirect_store(struct device * device,struct device_attribute * attr,const char * buf,size_t count)2957 static ssize_t redirect_store(struct device *device,
2958 struct device_attribute *attr,
2959 const char *buf, size_t count)
2960 {
2961 unsigned int i, p;
2962 int res;
2963
2964 if (sscanf(buf, "%x %x\n", &i, &p) != 2)
2965 return -EINVAL;
2966 res = ddb_redirect(i, p);
2967 if (res < 0)
2968 return res;
2969 dev_info(device, "redirect: %02x, %02x\n", i, p);
2970 return count;
2971 }
2972
gap_show(struct device * device,struct device_attribute * attr,char * buf)2973 static ssize_t gap_show(struct device *device,
2974 struct device_attribute *attr, char *buf)
2975 {
2976 struct ddb *dev = dev_get_drvdata(device);
2977 int num = attr->attr.name[3] - 0x30;
2978
2979 return sprintf(buf, "%d\n", dev->port[num].gap);
2980 }
2981
gap_store(struct device * device,struct device_attribute * attr,const char * buf,size_t count)2982 static ssize_t gap_store(struct device *device, struct device_attribute *attr,
2983 const char *buf, size_t count)
2984 {
2985 struct ddb *dev = dev_get_drvdata(device);
2986 int num = attr->attr.name[3] - 0x30;
2987 unsigned int val;
2988
2989 if (sscanf(buf, "%u\n", &val) != 1)
2990 return -EINVAL;
2991 if (val > 128)
2992 return -EINVAL;
2993 if (val == 128)
2994 val = 0xffffffff;
2995 dev->port[num].gap = val;
2996 return count;
2997 }
2998
version_show(struct device * device,struct device_attribute * attr,char * buf)2999 static ssize_t version_show(struct device *device,
3000 struct device_attribute *attr, char *buf)
3001 {
3002 struct ddb *dev = dev_get_drvdata(device);
3003
3004 return sprintf(buf, "%08x %08x\n",
3005 dev->link[0].ids.hwid, dev->link[0].ids.regmapid);
3006 }
3007
hwid_show(struct device * device,struct device_attribute * attr,char * buf)3008 static ssize_t hwid_show(struct device *device,
3009 struct device_attribute *attr, char *buf)
3010 {
3011 struct ddb *dev = dev_get_drvdata(device);
3012
3013 return sprintf(buf, "0x%08X\n", dev->link[0].ids.hwid);
3014 }
3015
regmap_show(struct device * device,struct device_attribute * attr,char * buf)3016 static ssize_t regmap_show(struct device *device,
3017 struct device_attribute *attr, char *buf)
3018 {
3019 struct ddb *dev = dev_get_drvdata(device);
3020
3021 return sprintf(buf, "0x%08X\n", dev->link[0].ids.regmapid);
3022 }
3023
fmode_show(struct device * device,struct device_attribute * attr,char * buf)3024 static ssize_t fmode_show(struct device *device,
3025 struct device_attribute *attr, char *buf)
3026 {
3027 int num = attr->attr.name[5] - 0x30;
3028 struct ddb *dev = dev_get_drvdata(device);
3029
3030 return sprintf(buf, "%u\n", dev->link[num].lnb.fmode);
3031 }
3032
devid_show(struct device * device,struct device_attribute * attr,char * buf)3033 static ssize_t devid_show(struct device *device,
3034 struct device_attribute *attr, char *buf)
3035 {
3036 int num = attr->attr.name[5] - 0x30;
3037 struct ddb *dev = dev_get_drvdata(device);
3038
3039 return sprintf(buf, "%08x\n", dev->link[num].ids.devid);
3040 }
3041
fmode_store(struct device * device,struct device_attribute * attr,const char * buf,size_t count)3042 static ssize_t fmode_store(struct device *device, struct device_attribute *attr,
3043 const char *buf, size_t count)
3044 {
3045 struct ddb *dev = dev_get_drvdata(device);
3046 int num = attr->attr.name[5] - 0x30;
3047 unsigned int val;
3048
3049 if (sscanf(buf, "%u\n", &val) != 1)
3050 return -EINVAL;
3051 if (val > 3)
3052 return -EINVAL;
3053 ddb_lnb_init_fmode(dev, &dev->link[num], val);
3054 return count;
3055 }
3056
3057 static struct device_attribute ddb_attrs[] = {
3058 __ATTR_RO(version),
3059 __ATTR_RO(ports),
3060 __ATTR_RO(ts_irq),
3061 __ATTR_RO(i2c_irq),
3062 __ATTR(gap0, 0664, gap_show, gap_store),
3063 __ATTR(gap1, 0664, gap_show, gap_store),
3064 __ATTR(gap2, 0664, gap_show, gap_store),
3065 __ATTR(gap3, 0664, gap_show, gap_store),
3066 __ATTR(fmode0, 0664, fmode_show, fmode_store),
3067 __ATTR(fmode1, 0664, fmode_show, fmode_store),
3068 __ATTR(fmode2, 0664, fmode_show, fmode_store),
3069 __ATTR(fmode3, 0664, fmode_show, fmode_store),
3070 __ATTR_MRO(devid0, devid_show),
3071 __ATTR_MRO(devid1, devid_show),
3072 __ATTR_MRO(devid2, devid_show),
3073 __ATTR_MRO(devid3, devid_show),
3074 __ATTR_RO(hwid),
3075 __ATTR_RO(regmap),
3076 __ATTR(redirect, 0664, redirect_show, redirect_store),
3077 __ATTR_MRO(snr, bsnr_show),
3078 __ATTR_RO(bpsnr),
3079 __ATTR_NULL,
3080 };
3081
3082 static struct device_attribute ddb_attrs_temp[] = {
3083 __ATTR_RO(temp),
3084 };
3085
3086 static struct device_attribute ddb_attrs_fan[] = {
3087 __ATTR(fan, 0664, fan_show, fan_store),
3088 };
3089
3090 static struct device_attribute ddb_attrs_snr[] = {
3091 __ATTR_MRO(snr0, snr_show),
3092 __ATTR_MRO(snr1, snr_show),
3093 __ATTR_MRO(snr2, snr_show),
3094 __ATTR_MRO(snr3, snr_show),
3095 };
3096
3097 static struct device_attribute ddb_attrs_ctemp[] = {
3098 __ATTR_MRO(temp0, ctemp_show),
3099 __ATTR_MRO(temp1, ctemp_show),
3100 __ATTR_MRO(temp2, ctemp_show),
3101 __ATTR_MRO(temp3, ctemp_show),
3102 };
3103
3104 static struct device_attribute ddb_attrs_led[] = {
3105 __ATTR(led0, 0664, led_show, led_store),
3106 __ATTR(led1, 0664, led_show, led_store),
3107 __ATTR(led2, 0664, led_show, led_store),
3108 __ATTR(led3, 0664, led_show, led_store),
3109 };
3110
3111 static struct device_attribute ddb_attrs_fanspeed[] = {
3112 __ATTR_MRO(fanspeed0, fanspeed_show),
3113 __ATTR_MRO(fanspeed1, fanspeed_show),
3114 __ATTR_MRO(fanspeed2, fanspeed_show),
3115 __ATTR_MRO(fanspeed3, fanspeed_show),
3116 };
3117
3118 static struct class ddb_class = {
3119 .name = "ddbridge",
3120 .devnode = ddb_devnode,
3121 };
3122
ddb_class_create(void)3123 static int ddb_class_create(void)
3124 {
3125 ddb_major = register_chrdev(0, DDB_NAME, &ddb_fops);
3126 if (ddb_major < 0)
3127 return ddb_major;
3128 if (class_register(&ddb_class) < 0)
3129 return -1;
3130 return 0;
3131 }
3132
ddb_class_destroy(void)3133 static void ddb_class_destroy(void)
3134 {
3135 class_unregister(&ddb_class);
3136 unregister_chrdev(ddb_major, DDB_NAME);
3137 }
3138
ddb_device_attrs_del(struct ddb * dev)3139 static void ddb_device_attrs_del(struct ddb *dev)
3140 {
3141 int i;
3142
3143 for (i = 0; i < 4; i++)
3144 if (dev->link[i].info && dev->link[i].info->tempmon_irq)
3145 device_remove_file(dev->ddb_dev,
3146 &ddb_attrs_fanspeed[i]);
3147 for (i = 0; i < dev->link[0].info->temp_num; i++)
3148 device_remove_file(dev->ddb_dev, &ddb_attrs_temp[i]);
3149 for (i = 0; i < dev->link[0].info->fan_num; i++)
3150 device_remove_file(dev->ddb_dev, &ddb_attrs_fan[i]);
3151 for (i = 0; i < dev->i2c_num && i < 4; i++) {
3152 if (dev->link[0].info->led_num)
3153 device_remove_file(dev->ddb_dev, &ddb_attrs_led[i]);
3154 device_remove_file(dev->ddb_dev, &ddb_attrs_snr[i]);
3155 device_remove_file(dev->ddb_dev, &ddb_attrs_ctemp[i]);
3156 }
3157 for (i = 0; ddb_attrs[i].attr.name; i++)
3158 device_remove_file(dev->ddb_dev, &ddb_attrs[i]);
3159 }
3160
ddb_device_attrs_add(struct ddb * dev)3161 static int ddb_device_attrs_add(struct ddb *dev)
3162 {
3163 int i;
3164
3165 for (i = 0; ddb_attrs[i].attr.name; i++)
3166 if (device_create_file(dev->ddb_dev, &ddb_attrs[i]))
3167 goto fail;
3168 for (i = 0; i < dev->link[0].info->temp_num; i++)
3169 if (device_create_file(dev->ddb_dev, &ddb_attrs_temp[i]))
3170 goto fail;
3171 for (i = 0; i < dev->link[0].info->fan_num; i++)
3172 if (device_create_file(dev->ddb_dev, &ddb_attrs_fan[i]))
3173 goto fail;
3174 for (i = 0; (i < dev->i2c_num) && (i < 4); i++) {
3175 if (device_create_file(dev->ddb_dev, &ddb_attrs_snr[i]))
3176 goto fail;
3177 if (device_create_file(dev->ddb_dev, &ddb_attrs_ctemp[i]))
3178 goto fail;
3179 if (dev->link[0].info->led_num)
3180 if (device_create_file(dev->ddb_dev,
3181 &ddb_attrs_led[i]))
3182 goto fail;
3183 }
3184 for (i = 0; i < 4; i++)
3185 if (dev->link[i].info && dev->link[i].info->tempmon_irq)
3186 if (device_create_file(dev->ddb_dev,
3187 &ddb_attrs_fanspeed[i]))
3188 goto fail;
3189 return 0;
3190 fail:
3191 return -1;
3192 }
3193
ddb_device_create(struct ddb * dev)3194 int ddb_device_create(struct ddb *dev)
3195 {
3196 int res = 0;
3197
3198 if (ddb_num == DDB_MAX_ADAPTER)
3199 return -ENOMEM;
3200 mutex_lock(&ddb_mutex);
3201 dev->nr = ddb_num;
3202 ddbs[dev->nr] = dev;
3203 dev->ddb_dev = device_create(&ddb_class, dev->dev,
3204 MKDEV(ddb_major, dev->nr),
3205 dev, "ddbridge%d", dev->nr);
3206 if (IS_ERR(dev->ddb_dev)) {
3207 res = PTR_ERR(dev->ddb_dev);
3208 dev_info(dev->dev, "Could not create ddbridge%d\n", dev->nr);
3209 goto fail;
3210 }
3211 res = ddb_device_attrs_add(dev);
3212 if (res) {
3213 ddb_device_attrs_del(dev);
3214 device_destroy(&ddb_class, MKDEV(ddb_major, dev->nr));
3215 ddbs[dev->nr] = NULL;
3216 dev->ddb_dev = ERR_PTR(-ENODEV);
3217 } else {
3218 ddb_num++;
3219 }
3220 fail:
3221 mutex_unlock(&ddb_mutex);
3222 return res;
3223 }
3224
ddb_device_destroy(struct ddb * dev)3225 void ddb_device_destroy(struct ddb *dev)
3226 {
3227 if (IS_ERR(dev->ddb_dev))
3228 return;
3229 ddb_device_attrs_del(dev);
3230 device_destroy(&ddb_class, MKDEV(ddb_major, dev->nr));
3231 }
3232
3233 /****************************************************************************/
3234 /****************************************************************************/
3235 /****************************************************************************/
3236
tempmon_setfan(struct ddb_link * link)3237 static void tempmon_setfan(struct ddb_link *link)
3238 {
3239 u32 temp, temp2, pwm;
3240
3241 if ((ddblreadl(link, TEMPMON_CONTROL) &
3242 TEMPMON_CONTROL_OVERTEMP) != 0) {
3243 dev_info(link->dev->dev, "Over temperature condition\n");
3244 link->overtemperature_error = 1;
3245 }
3246 temp = (ddblreadl(link, TEMPMON_SENSOR0) >> 8) & 0xFF;
3247 if (temp & 0x80)
3248 temp = 0;
3249 temp2 = (ddblreadl(link, TEMPMON_SENSOR1) >> 8) & 0xFF;
3250 if (temp2 & 0x80)
3251 temp2 = 0;
3252 if (temp2 > temp)
3253 temp = temp2;
3254
3255 pwm = (ddblreadl(link, TEMPMON_FANCONTROL) >> 8) & 0x0F;
3256 if (pwm > 10)
3257 pwm = 10;
3258
3259 if (temp >= link->temp_tab[pwm]) {
3260 while (pwm < 10 && temp >= link->temp_tab[pwm + 1])
3261 pwm += 1;
3262 } else {
3263 while (pwm > 1 && temp < link->temp_tab[pwm - 2])
3264 pwm -= 1;
3265 }
3266 ddblwritel(link, (pwm << 8), TEMPMON_FANCONTROL);
3267 }
3268
temp_handler(void * data)3269 static void temp_handler(void *data)
3270 {
3271 struct ddb_link *link = (struct ddb_link *)data;
3272
3273 spin_lock(&link->temp_lock);
3274 tempmon_setfan(link);
3275 spin_unlock(&link->temp_lock);
3276 }
3277
tempmon_init(struct ddb_link * link,int first_time)3278 static int tempmon_init(struct ddb_link *link, int first_time)
3279 {
3280 struct ddb *dev = link->dev;
3281 int status = 0;
3282 u32 l = link->nr;
3283
3284 spin_lock_irq(&link->temp_lock);
3285 if (first_time) {
3286 static u8 temperature_table[11] = {
3287 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80 };
3288
3289 memcpy(link->temp_tab, temperature_table,
3290 sizeof(temperature_table));
3291 }
3292 ddb_irq_set(dev, l, link->info->tempmon_irq, temp_handler, link);
3293 ddblwritel(link, (TEMPMON_CONTROL_OVERTEMP | TEMPMON_CONTROL_AUTOSCAN |
3294 TEMPMON_CONTROL_INTENABLE),
3295 TEMPMON_CONTROL);
3296 ddblwritel(link, (3 << 8), TEMPMON_FANCONTROL);
3297
3298 link->overtemperature_error =
3299 ((ddblreadl(link, TEMPMON_CONTROL) &
3300 TEMPMON_CONTROL_OVERTEMP) != 0);
3301 if (link->overtemperature_error) {
3302 dev_info(link->dev->dev, "Over temperature condition\n");
3303 status = -1;
3304 }
3305 tempmon_setfan(link);
3306 spin_unlock_irq(&link->temp_lock);
3307 return status;
3308 }
3309
ddb_init_tempmon(struct ddb_link * link)3310 static int ddb_init_tempmon(struct ddb_link *link)
3311 {
3312 const struct ddb_info *info = link->info;
3313
3314 if (!info->tempmon_irq)
3315 return 0;
3316 if (info->type == DDB_OCTOPUS_MAX_CT)
3317 if (link->ids.regmapid < 0x00010002)
3318 return 0;
3319 spin_lock_init(&link->temp_lock);
3320 dev_dbg(link->dev->dev, "init_tempmon\n");
3321 return tempmon_init(link, 1);
3322 }
3323
3324 /****************************************************************************/
3325 /****************************************************************************/
3326 /****************************************************************************/
3327
ddb_init_boards(struct ddb * dev)3328 static int ddb_init_boards(struct ddb *dev)
3329 {
3330 const struct ddb_info *info;
3331 struct ddb_link *link;
3332 u32 l;
3333
3334 for (l = 0; l < DDB_MAX_LINK; l++) {
3335 link = &dev->link[l];
3336 info = link->info;
3337
3338 if (!info)
3339 continue;
3340 if (info->board_control) {
3341 ddbwritel(dev, 0, DDB_LINK_TAG(l) | BOARD_CONTROL);
3342 msleep(100);
3343 ddbwritel(dev, info->board_control_2,
3344 DDB_LINK_TAG(l) | BOARD_CONTROL);
3345 usleep_range(2000, 3000);
3346 ddbwritel(dev,
3347 info->board_control_2 | info->board_control,
3348 DDB_LINK_TAG(l) | BOARD_CONTROL);
3349 usleep_range(2000, 3000);
3350 }
3351 ddb_init_tempmon(link);
3352 }
3353 return 0;
3354 }
3355
ddb_init(struct ddb * dev)3356 int ddb_init(struct ddb *dev)
3357 {
3358 mutex_init(&dev->link[0].lnb.lock);
3359 mutex_init(&dev->link[0].flash_mutex);
3360 if (no_init) {
3361 ddb_device_create(dev);
3362 return 0;
3363 }
3364
3365 ddb_init_boards(dev);
3366
3367 if (ddb_i2c_init(dev) < 0)
3368 goto fail1;
3369 ddb_ports_init(dev);
3370 if (ddb_buffers_alloc(dev) < 0) {
3371 dev_info(dev->dev, "Could not allocate buffer memory\n");
3372 goto fail2;
3373 }
3374 if (ddb_ports_attach(dev) < 0)
3375 goto fail3;
3376
3377 ddb_device_create(dev);
3378
3379 if (dev->link[0].info->fan_num) {
3380 ddbwritel(dev, 1, GPIO_DIRECTION);
3381 ddbwritel(dev, 1, GPIO_OUTPUT);
3382 }
3383 return 0;
3384
3385 fail3:
3386 dev_err(dev->dev, "fail3\n");
3387 ddb_ports_detach(dev);
3388 ddb_buffers_free(dev);
3389 fail2:
3390 dev_err(dev->dev, "fail2\n");
3391 ddb_ports_release(dev);
3392 ddb_i2c_release(dev);
3393 fail1:
3394 dev_err(dev->dev, "fail1\n");
3395 return -1;
3396 }
3397
ddb_unmap(struct ddb * dev)3398 void ddb_unmap(struct ddb *dev)
3399 {
3400 if (dev->regs)
3401 iounmap(dev->regs);
3402 vfree(dev);
3403 }
3404
ddb_exit_ddbridge(int stage,int error)3405 int ddb_exit_ddbridge(int stage, int error)
3406 {
3407 switch (stage) {
3408 default:
3409 case 2:
3410 destroy_workqueue(ddb_wq);
3411 fallthrough;
3412 case 1:
3413 ddb_class_destroy();
3414 break;
3415 }
3416
3417 return error;
3418 }
3419
ddb_init_ddbridge(void)3420 int ddb_init_ddbridge(void)
3421 {
3422 if (dma_buf_num < 8)
3423 dma_buf_num = 8;
3424 if (dma_buf_num > 32)
3425 dma_buf_num = 32;
3426 if (dma_buf_size < 1)
3427 dma_buf_size = 1;
3428 if (dma_buf_size > 43)
3429 dma_buf_size = 43;
3430
3431 if (ddb_class_create() < 0)
3432 return -1;
3433 ddb_wq = alloc_workqueue("ddbridge", 0, 0);
3434 if (!ddb_wq)
3435 return ddb_exit_ddbridge(1, -1);
3436
3437 return 0;
3438 }
3439