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 
winview_volume(struct bttv * btv,__u16 volume)15 void 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 
gvbctv3pci_audio(struct bttv * btv,struct v4l2_tuner * t,int set)55 void 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 
gvbctv5pci_audio(struct bttv * btv,struct v4l2_tuner * t,int set)86 void 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, "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 
avermedia_tvphone_audio(struct bttv * btv,struct v4l2_tuner * t,int set)157 void 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, "avermedia");
185 }
186 
187 
avermedia_tv_stereo_audio(struct bttv * btv,struct v4l2_tuner * t,int set)188 void 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, "avermedia");
217 }
218 
219 /* Lifetec 9415 handling */
220 
lt9415_audio(struct bttv * btv,struct v4l2_tuner * t,int set)221 void 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, "lt9415");
256 }
257 
258 /* TDA9821 on TerraTV+ Bt848, Bt878 */
terratv_audio(struct bttv * btv,struct v4l2_tuner * t,int set)259 void 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, "terratv");
289 }
290 
291 
winfast2000_audio(struct bttv * btv,struct v4l2_tuner * t,int set)292 void winfast2000_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
293 {
294 	unsigned long val;
295 
296 	if (!set) {
297 		/* Not much to do here */
298 		t->audmode = V4L2_TUNER_MODE_LANG1;
299 		t->rxsubchans = V4L2_TUNER_SUB_MONO |
300 				V4L2_TUNER_SUB_STEREO |
301 				V4L2_TUNER_SUB_LANG1 |
302 				V4L2_TUNER_SUB_LANG2;
303 
304 		return;
305 	}
306 
307 	/*btor (0xc32000, BT848_GPIO_OUT_EN);*/
308 	switch (t->audmode) {
309 	case V4L2_TUNER_MODE_MONO:
310 	case V4L2_TUNER_MODE_LANG1:
311 		val = 0x420000;
312 		break;
313 	case V4L2_TUNER_MODE_LANG2: /* SAP */
314 		val = 0x410000;
315 		break;
316 	case V4L2_TUNER_MODE_STEREO:
317 		val = 0x020000;
318 		break;
319 	default:
320 		return;
321 	}
322 
323 	gpio_bits(0x430000, val);
324 	if (bttv_gpio)
325 		bttv_gpio_tracking(btv, "winfast2000");
326 }
327 
328 /*
329  * Dariusz Kowalewski <darekk@automex.pl>
330  * sound control for Prolink PV-BT878P+9B (PixelView PlayTV Pro FM+NICAM
331  * revision 9B has on-board TDA9874A sound decoder).
332  *
333  * Note: There are card variants without tda9874a. Forcing the "stereo sound route"
334  *       will mute this cards.
335  */
pvbt878p9b_audio(struct bttv * btv,struct v4l2_tuner * t,int set)336 void pvbt878p9b_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
337 {
338 	unsigned int val = 0;
339 
340 	if (btv->radio_user)
341 		return;
342 
343 	if (!set) {
344 		/* Not much to do here */
345 		t->audmode = V4L2_TUNER_MODE_LANG1;
346 		t->rxsubchans = V4L2_TUNER_SUB_MONO |
347 				V4L2_TUNER_SUB_STEREO |
348 				V4L2_TUNER_SUB_LANG1 |
349 				V4L2_TUNER_SUB_LANG2;
350 
351 		return;
352 	}
353 
354 	switch (t->audmode) {
355 	case V4L2_TUNER_MODE_MONO:
356 		val = 0x01;
357 		break;
358 	case V4L2_TUNER_MODE_LANG1:
359 	case V4L2_TUNER_MODE_LANG2:
360 	case V4L2_TUNER_MODE_STEREO:
361 		val = 0x02;
362 		break;
363 	default:
364 		return;
365 	}
366 
367 	gpio_bits(0x03, val);
368 	if (bttv_gpio)
369 		bttv_gpio_tracking(btv, "pvbt878p9b");
370 }
371 
372 /*
373  * Dariusz Kowalewski <darekk@automex.pl>
374  * sound control for FlyVideo 2000S (with tda9874 decoder)
375  * based on pvbt878p9b_audio() - this is not tested, please fix!!!
376  */
fv2000s_audio(struct bttv * btv,struct v4l2_tuner * t,int set)377 void fv2000s_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
378 {
379 	unsigned int val;
380 
381 	if (btv->radio_user)
382 		return;
383 
384 	if (!set) {
385 		/* Not much to do here */
386 		t->audmode = V4L2_TUNER_MODE_LANG1;
387 		t->rxsubchans = V4L2_TUNER_SUB_MONO |
388 				V4L2_TUNER_SUB_STEREO |
389 				V4L2_TUNER_SUB_LANG1 |
390 				V4L2_TUNER_SUB_LANG2;
391 
392 		return;
393 	}
394 
395 	switch (t->audmode) {
396 	case V4L2_TUNER_MODE_MONO:
397 		val = 0x0000;
398 		break;
399 	case V4L2_TUNER_MODE_LANG1:
400 	case V4L2_TUNER_MODE_LANG2:
401 	case V4L2_TUNER_MODE_STEREO:
402 		val = 0x1080; /*-dk-???: 0x0880, 0x0080, 0x1800 ... */
403 		break;
404 	default:
405 		return;
406 	}
407 	gpio_bits(0x1800, val);
408 	if (bttv_gpio)
409 		bttv_gpio_tracking(btv, "fv2000s");
410 }
411 
412 /*
413  * sound control for Canopus WinDVR PCI
414  * Masaki Suzuki <masaki@btree.org>
415  */
windvr_audio(struct bttv * btv,struct v4l2_tuner * t,int set)416 void windvr_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
417 {
418 	unsigned long val;
419 
420 	if (!set) {
421 		/* Not much to do here */
422 		t->audmode = V4L2_TUNER_MODE_LANG1;
423 		t->rxsubchans = V4L2_TUNER_SUB_MONO |
424 				V4L2_TUNER_SUB_STEREO |
425 				V4L2_TUNER_SUB_LANG1 |
426 				V4L2_TUNER_SUB_LANG2;
427 
428 		return;
429 	}
430 
431 	switch (t->audmode) {
432 	case V4L2_TUNER_MODE_MONO:
433 		val = 0x040000;
434 		break;
435 	case V4L2_TUNER_MODE_LANG2:
436 		val = 0x100000;
437 		break;
438 	default:
439 		return;
440 	}
441 
442 	gpio_bits(0x140000, val);
443 	if (bttv_gpio)
444 		bttv_gpio_tracking(btv, "windvr");
445 }
446 
447 /*
448  * sound control for AD-TVK503
449  * Hiroshi Takekawa <sian@big.or.jp>
450  */
adtvk503_audio(struct bttv * btv,struct v4l2_tuner * t,int set)451 void adtvk503_audio(struct bttv *btv, struct v4l2_tuner *t, int set)
452 {
453 	unsigned int con = 0xffffff;
454 
455 	/* btaor(0x1e0000, ~0x1e0000, BT848_GPIO_OUT_EN); */
456 
457 	if (!set) {
458 		/* Not much to do here */
459 		t->audmode = V4L2_TUNER_MODE_LANG1;
460 		t->rxsubchans = V4L2_TUNER_SUB_MONO |
461 				V4L2_TUNER_SUB_STEREO |
462 				V4L2_TUNER_SUB_LANG1 |
463 				V4L2_TUNER_SUB_LANG2;
464 
465 		return;
466 	}
467 
468 	/* btor(***, BT848_GPIO_OUT_EN); */
469 	switch (t->audmode) {
470 	case V4L2_TUNER_MODE_LANG1:
471 		con = 0x00000000;
472 		break;
473 	case V4L2_TUNER_MODE_LANG2:
474 		con = 0x00180000;
475 		break;
476 	case V4L2_TUNER_MODE_STEREO:
477 		con = 0x00000000;
478 		break;
479 	case V4L2_TUNER_MODE_MONO:
480 		con = 0x00060000;
481 		break;
482 	default:
483 		return;
484 	}
485 
486 	gpio_bits(0x1e0000, con);
487 	if (bttv_gpio)
488 		bttv_gpio_tracking(btv, "adtvk503");
489 }
490