1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Handlers for board audio hooks, split from bttv-cards
4 *
5 * Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@kernel.org>
6 */
7
8#include "bttv-audio-hook.h"
9
10#include <linux/delay.h>
11
12/* ----------------------------------------------------------------------- */
13/* winview */
14
15void winview_volume(struct bttv *btv, __u16 volume)
16{
17 /* PT2254A programming Jon Tombs, jon@gte.esi.us.es */
18 int bits_out, loops, vol, data;
19
20 /* 32 levels logarithmic */
21 vol = 32 - ((volume>>11));
22 /* units */
23 bits_out = (PT2254_DBS_IN_2>>(vol%5));
24 /* tens */
25 bits_out |= (PT2254_DBS_IN_10>>(vol/5));
26 bits_out |= PT2254_L_CHANNEL | PT2254_R_CHANNEL;
27 data = gpio_read();
28 data &= ~(WINVIEW_PT2254_CLK| WINVIEW_PT2254_DATA|
29 WINVIEW_PT2254_STROBE);
30 for (loops = 17; loops >= 0 ; loops--) {
31 if (bits_out & (1<<loops))
32 data |= WINVIEW_PT2254_DATA;
33 else
34 data &= ~WINVIEW_PT2254_DATA;
35 gpio_write(data);
36 udelay(5);
37 data |= WINVIEW_PT2254_CLK;
38 gpio_write(data);
39 udelay(5);
40 data &= ~WINVIEW_PT2254_CLK;
41 gpio_write(data);
42 }
43 data |= WINVIEW_PT2254_STROBE;
44 data &= ~WINVIEW_PT2254_DATA;
45 gpio_write(data);
46 udelay(10);
47 data &= ~WINVIEW_PT2254_STROBE;
48 gpio_write(data);
49}
50
51/* ----------------------------------------------------------------------- */
52/* mono/stereo control for various cards (which don't use i2c chips but */
53/* connect something to the GPIO pins */
54
55void gvbctv3pci_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
56{
57 unsigned int con;
58
59 if (!set) {
60 /* Not much to do here */
61 t->audmode = V4L2_TUNER_MODE_LANG1;
62 t->rxsubchans = V4L2_TUNER_SUB_MONO |
63 V4L2_TUNER_SUB_STEREO |
64 V4L2_TUNER_SUB_LANG1 |
65 V4L2_TUNER_SUB_LANG2;
66
67 return;
68 }
69
70 gpio_inout(0x300, 0x300);
71 switch (t->audmode) {
72 case V4L2_TUNER_MODE_LANG1:
73 default:
74 con = 0x000;
75 break;
76 case V4L2_TUNER_MODE_LANG2:
77 con = 0x300;
78 break;
79 case V4L2_TUNER_MODE_STEREO:
80 con = 0x200;
81 break;
82 }
83 gpio_bits(0x300, con);
84}
85
86void gvbctv5pci_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
87{
88 unsigned int val, con;
89
90 if (btv->radio_user)
91 return;
92
93 val = gpio_read();
94 if (set) {
95 switch (t->audmode) {
96 case V4L2_TUNER_MODE_LANG2:
97 con = 0x300;
98 break;
99 case V4L2_TUNER_MODE_LANG1_LANG2:
100 con = 0x100;
101 break;
102 default:
103 con = 0x000;
104 break;
105 }
106 if (con != (val & 0x300)) {
107 gpio_bits(0x300, con);
108 if (bttv_gpio)
109 bttv_gpio_tracking(btv, comment: "gvbctv5pci");
110 }
111 } else {
112 switch (val & 0x70) {
113 case 0x10:
114 t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
115 t->audmode = V4L2_TUNER_MODE_LANG1_LANG2;
116 break;
117 case 0x30:
118 t->rxsubchans = V4L2_TUNER_SUB_LANG2;
119 t->audmode = V4L2_TUNER_MODE_LANG1_LANG2;
120 break;
121 case 0x50:
122 t->rxsubchans = V4L2_TUNER_SUB_LANG1;
123 t->audmode = V4L2_TUNER_MODE_LANG1_LANG2;
124 break;
125 case 0x60:
126 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
127 t->audmode = V4L2_TUNER_MODE_STEREO;
128 break;
129 case 0x70:
130 t->rxsubchans = V4L2_TUNER_SUB_MONO;
131 t->audmode = V4L2_TUNER_MODE_MONO;
132 break;
133 default:
134 t->rxsubchans = V4L2_TUNER_SUB_MONO |
135 V4L2_TUNER_SUB_STEREO |
136 V4L2_TUNER_SUB_LANG1 |
137 V4L2_TUNER_SUB_LANG2;
138 t->audmode = V4L2_TUNER_MODE_LANG1;
139 }
140 }
141}
142
143/*
144 * Mario Medina Nussbaum <medisoft@alohabbs.org.mx>
145 * I discover that on BT848_GPIO_DATA address a byte 0xcce enable stereo,
146 * 0xdde enables mono and 0xccd enables sap
147 *
148 * Petr Vandrovec <VANDROVE@vc.cvut.cz>
149 * P.S.: At least mask in line above is wrong - GPIO pins 3,2 select
150 * input/output sound connection, so both must be set for output mode.
151 *
152 * Looks like it's needed only for the "tvphone", the "tvphone 98"
153 * handles this with a tda9840
154 *
155 */
156
157void avermedia_tvphone_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
158{
159 int val;
160
161 if (!set) {
162 /* Not much to do here */
163 t->audmode = V4L2_TUNER_MODE_LANG1;
164 t->rxsubchans = V4L2_TUNER_SUB_MONO |
165 V4L2_TUNER_SUB_STEREO |
166 V4L2_TUNER_SUB_LANG1 |
167 V4L2_TUNER_SUB_LANG2;
168
169 return;
170 }
171
172 switch (t->audmode) {
173 case V4L2_TUNER_MODE_LANG2: /* SAP */
174 val = 0x02;
175 break;
176 case V4L2_TUNER_MODE_STEREO:
177 val = 0x01;
178 break;
179 default:
180 return;
181 }
182 gpio_bits(0x03, val);
183 if (bttv_gpio)
184 bttv_gpio_tracking(btv, comment: "avermedia");
185}
186
187
188void avermedia_tv_stereo_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
189{
190 int val = 0;
191
192 if (!set) {
193 /* Not much to do here */
194 t->audmode = V4L2_TUNER_MODE_LANG1;
195 t->rxsubchans = V4L2_TUNER_SUB_MONO |
196 V4L2_TUNER_SUB_STEREO |
197 V4L2_TUNER_SUB_LANG1 |
198 V4L2_TUNER_SUB_LANG2;
199
200 return;
201 }
202
203 switch (t->audmode) {
204 case V4L2_TUNER_MODE_LANG2: /* SAP */
205 val = 0x01;
206 break;
207 case V4L2_TUNER_MODE_STEREO:
208 val = 0x02;
209 break;
210 default:
211 val = 0;
212 break;
213 }
214 btaor(val, ~0x03, BT848_GPIO_DATA);
215 if (bttv_gpio)
216 bttv_gpio_tracking(btv, comment: "avermedia");
217}
218
219/* Lifetec 9415 handling */
220
221void lt9415_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
222{
223 int val = 0;
224
225 if (gpio_read() & 0x4000) {
226 t->audmode = V4L2_TUNER_MODE_MONO;
227 return;
228 }
229
230 if (!set) {
231 /* Not much to do here */
232 t->audmode = V4L2_TUNER_MODE_LANG1;
233 t->rxsubchans = V4L2_TUNER_SUB_MONO |
234 V4L2_TUNER_SUB_STEREO |
235 V4L2_TUNER_SUB_LANG1 |
236 V4L2_TUNER_SUB_LANG2;
237
238 return;
239 }
240
241 switch (t->audmode) {
242 case V4L2_TUNER_MODE_LANG2: /* A2 SAP */
243 val = 0x0080;
244 break;
245 case V4L2_TUNER_MODE_STEREO: /* A2 stereo */
246 val = 0x0880;
247 break;
248 default:
249 val = 0;
250 break;
251 }
252
253 gpio_bits(0x0880, val);
254 if (bttv_gpio)
255 bttv_gpio_tracking(btv, comment: "lt9415");
256}
257
258/* TDA9821 on TerraTV+ Bt848, Bt878 */
259void terratv_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
260{
261 unsigned int con = 0;
262
263 if (!set) {
264 /* Not much to do here */
265 t->audmode = V4L2_TUNER_MODE_LANG1;
266 t->rxsubchans = V4L2_TUNER_SUB_MONO |
267 V4L2_TUNER_SUB_STEREO |
268 V4L2_TUNER_SUB_LANG1 |
269 V4L2_TUNER_SUB_LANG2;
270
271 return;
272 }
273
274 gpio_inout(0x180000, 0x180000);
275 switch (t->audmode) {
276 case V4L2_TUNER_MODE_LANG2:
277 con = 0x080000;
278 break;
279 case V4L2_TUNER_MODE_STEREO:
280 con = 0x180000;
281 break;
282 default:
283 con = 0;
284 break;
285 }
286 gpio_bits(0x180000, con);
287 if (bttv_gpio)
288 bttv_gpio_tracking(btv, comment: "terratv");
289}
290
291
292void winfast2000_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
293{
294 unsigned long val;
295
296 if (!set)
297 return;
298
299 /*btor (0xc32000, BT848_GPIO_OUT_EN);*/
300 switch (t->audmode) {
301 case V4L2_TUNER_MODE_MONO:
302 case V4L2_TUNER_MODE_LANG1:
303 val = 0x420000;
304 break;
305 case V4L2_TUNER_MODE_LANG2: /* SAP */
306 val = 0x410000;
307 break;
308 case V4L2_TUNER_MODE_STEREO:
309 val = 0x020000;
310 break;
311 default:
312 return;
313 }
314
315 gpio_bits(0x430000, val);
316 if (bttv_gpio)
317 bttv_gpio_tracking(btv, comment: "winfast2000");
318}
319
320/*
321 * Dariusz Kowalewski <darekk@automex.pl>
322 * sound control for Prolink PV-BT878P+9B (PixelView PlayTV Pro FM+NICAM
323 * revision 9B has on-board TDA9874A sound decoder).
324 *
325 * Note: There are card variants without tda9874a. Forcing the "stereo sound route"
326 * will mute this cards.
327 */
328void pvbt878p9b_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
329{
330 unsigned int val = 0;
331
332 if (btv->radio_user)
333 return;
334
335 if (!set) {
336 /* Not much to do here */
337 t->audmode = V4L2_TUNER_MODE_LANG1;
338 t->rxsubchans = V4L2_TUNER_SUB_MONO |
339 V4L2_TUNER_SUB_STEREO |
340 V4L2_TUNER_SUB_LANG1 |
341 V4L2_TUNER_SUB_LANG2;
342
343 return;
344 }
345
346 switch (t->audmode) {
347 case V4L2_TUNER_MODE_MONO:
348 val = 0x01;
349 break;
350 case V4L2_TUNER_MODE_LANG1:
351 case V4L2_TUNER_MODE_LANG2:
352 case V4L2_TUNER_MODE_STEREO:
353 val = 0x02;
354 break;
355 default:
356 return;
357 }
358
359 gpio_bits(0x03, val);
360 if (bttv_gpio)
361 bttv_gpio_tracking(btv, comment: "pvbt878p9b");
362}
363
364/*
365 * Dariusz Kowalewski <darekk@automex.pl>
366 * sound control for FlyVideo 2000S (with tda9874 decoder)
367 * based on pvbt878p9b_audio() - this is not tested, please fix!!!
368 */
369void fv2000s_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
370{
371 unsigned int val;
372
373 if (btv->radio_user)
374 return;
375
376 if (!set) {
377 /* Not much to do here */
378 t->audmode = V4L2_TUNER_MODE_LANG1;
379 t->rxsubchans = V4L2_TUNER_SUB_MONO |
380 V4L2_TUNER_SUB_STEREO |
381 V4L2_TUNER_SUB_LANG1 |
382 V4L2_TUNER_SUB_LANG2;
383
384 return;
385 }
386
387 switch (t->audmode) {
388 case V4L2_TUNER_MODE_MONO:
389 val = 0x0000;
390 break;
391 case V4L2_TUNER_MODE_LANG1:
392 case V4L2_TUNER_MODE_LANG2:
393 case V4L2_TUNER_MODE_STEREO:
394 val = 0x1080; /*-dk-???: 0x0880, 0x0080, 0x1800 ... */
395 break;
396 default:
397 return;
398 }
399 gpio_bits(0x1800, val);
400 if (bttv_gpio)
401 bttv_gpio_tracking(btv, comment: "fv2000s");
402}
403
404/*
405 * sound control for Canopus WinDVR PCI
406 * Masaki Suzuki <masaki@btree.org>
407 */
408void windvr_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
409{
410 unsigned long val;
411
412 if (!set) {
413 /* Not much to do here */
414 t->audmode = V4L2_TUNER_MODE_LANG1;
415 t->rxsubchans = V4L2_TUNER_SUB_MONO |
416 V4L2_TUNER_SUB_STEREO |
417 V4L2_TUNER_SUB_LANG1 |
418 V4L2_TUNER_SUB_LANG2;
419
420 return;
421 }
422
423 switch (t->audmode) {
424 case V4L2_TUNER_MODE_MONO:
425 val = 0x040000;
426 break;
427 case V4L2_TUNER_MODE_LANG2:
428 val = 0x100000;
429 break;
430 default:
431 return;
432 }
433
434 gpio_bits(0x140000, val);
435 if (bttv_gpio)
436 bttv_gpio_tracking(btv, comment: "windvr");
437}
438
439/*
440 * sound control for AD-TVK503
441 * Hiroshi Takekawa <sian@big.or.jp>
442 */
443void adtvk503_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
444{
445 unsigned int con = 0xffffff;
446
447 /* btaor(0x1e0000, ~0x1e0000, BT848_GPIO_OUT_EN); */
448
449 if (!set) {
450 /* Not much to do here */
451 t->audmode = V4L2_TUNER_MODE_LANG1;
452 t->rxsubchans = V4L2_TUNER_SUB_MONO |
453 V4L2_TUNER_SUB_STEREO |
454 V4L2_TUNER_SUB_LANG1 |
455 V4L2_TUNER_SUB_LANG2;
456
457 return;
458 }
459
460 /* btor(***, BT848_GPIO_OUT_EN); */
461 switch (t->audmode) {
462 case V4L2_TUNER_MODE_LANG1:
463 con = 0x00000000;
464 break;
465 case V4L2_TUNER_MODE_LANG2:
466 con = 0x00180000;
467 break;
468 case V4L2_TUNER_MODE_STEREO:
469 con = 0x00000000;
470 break;
471 case V4L2_TUNER_MODE_MONO:
472 con = 0x00060000;
473 break;
474 default:
475 return;
476 }
477
478 gpio_bits(0x1e0000, con);
479 if (bttv_gpio)
480 bttv_gpio_tracking(btv, comment: "adtvk503");
481}
482

source code of linux/drivers/media/pci/bt8xx/bttv-audio-hook.c