xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision 0edbfea5)
1 /*
2  *  This program is free software; you can redistribute it and/or modify
3  *  it under the terms of the GNU General Public License as published by
4  *  the Free Software Foundation; either version 2 of the License, or
5  *  (at your option) any later version.
6  *
7  *  This program is distributed in the hope that it will be useful,
8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  *  GNU Library General Public License for more details.
11  *
12  *  You should have received a copy of the GNU General Public License
13  *  along with this program; if not, write to the Free Software
14  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15  */
16 
17 /*
18     Vortex core low level functions.
19 
20  Author: Manuel Jander (mjander@users.sourceforge.cl)
21  These functions are mainly the result of translations made
22  from the original disassembly of the au88x0 binary drivers,
23  written by Aureal before they went down.
24  Many thanks to the Jeff Muizelaar, Kester Maddock, and whoever
25  contributed to the OpenVortex project.
26  The author of this file, put the few available pieces together
27  and translated the rest of the riddle (Mix, Src and connection stuff).
28  Some things are still to be discovered, and their meanings are unclear.
29 
30  Some of these functions aren't intended to be really used, rather
31  to help to understand how does the AU88X0 chips work. Keep them in, because
32  they could be used somewhere in the future.
33 
34  This code hasn't been tested or proof read thoroughly. If you wanna help,
35  take a look at the AU88X0 assembly and check if this matches.
36  Functions tested ok so far are (they show the desired effect
37  at least):
38    vortex_routes(); (1 bug fixed).
39    vortex_adb_addroute();
40    vortex_adb_addroutes();
41    vortex_connect_codecplay();
42    vortex_src_flushbuffers();
43    vortex_adbdma_setmode();  note: still some unknown arguments!
44    vortex_adbdma_startfifo();
45    vortex_adbdma_stopfifo();
46    vortex_fifo_setadbctrl(); note: still some unknown arguments!
47    vortex_mix_setinputvolumebyte();
48    vortex_mix_enableinput();
49    vortex_mixer_addWTD(); (fixed)
50    vortex_connection_adbdma_src_src();
51    vortex_connection_adbdma_src();
52    vortex_src_change_convratio();
53    vortex_src_addWTD(); (fixed)
54 
55  History:
56 
57  01-03-2003 First revision.
58  01-21-2003 Some bug fixes.
59  17-02-2003 many bugfixes after a big versioning mess.
60  18-02-2003 JAAAAAHHHUUUUUU!!!! The mixer works !! I'm just so happy !
61 			 (2 hours later...) I cant believe it! Im really lucky today.
62 			 Now the SRC is working too! Yeah! XMMS works !
63  20-02-2003 First steps into the ALSA world.
64  28-02-2003 As my birthday present, i discovered how the DMA buffer pages really
65             work :-). It was all wrong.
66  12-03-2003 ALSA driver starts working (2 channels).
67  16-03-2003 More srcblock_setupchannel discoveries.
68  12-04-2003 AU8830 playback support. Recording in the works.
69  17-04-2003 vortex_route() and vortex_routes() bug fixes. AU8830 recording
70  			works now, but chipn' dale effect is still there.
71  16-05-2003 SrcSetupChannel cleanup. Moved the Src setup stuff entirely
72             into au88x0_pcm.c .
73  06-06-2003 Buffer shifter bugfix. Mixer volume fix.
74  07-12-2003 A3D routing finally fixed. Believed to be OK.
75  25-03-2004 Many thanks to Claudia, for such valuable bug reports.
76 
77 */
78 
79 #include "au88x0.h"
80 #include "au88x0_a3d.h"
81 #include <linux/delay.h>
82 
83 /*  MIXER (CAsp4Mix.s and CAsp4Mixer.s) */
84 
85 // FIXME: get rid of this.
86 static int mchannels[NR_MIXIN];
87 static int rampchs[NR_MIXIN];
88 
89 static void vortex_mixer_en_sr(vortex_t * vortex, int channel)
90 {
91 	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
92 		hwread(vortex->mmio, VORTEX_MIXER_SR) | (0x1 << channel));
93 }
94 static void vortex_mixer_dis_sr(vortex_t * vortex, int channel)
95 {
96 	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
97 		hwread(vortex->mmio, VORTEX_MIXER_SR) & ~(0x1 << channel));
98 }
99 
100 #if 0
101 static void
102 vortex_mix_muteinputgain(vortex_t * vortex, unsigned char mix,
103 			 unsigned char channel)
104 {
105 	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_A + ((mix << 5) + channel),
106 		0x80);
107 	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_B + ((mix << 5) + channel),
108 		0x80);
109 }
110 
111 static int vortex_mix_getvolume(vortex_t * vortex, unsigned char mix)
112 {
113 	int a;
114 	a = hwread(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2)) & 0xff;
115 	//FP2LinearFrac(a);
116 	return (a);
117 }
118 
119 static int
120 vortex_mix_getinputvolume(vortex_t * vortex, unsigned char mix,
121 			  int channel, int *vol)
122 {
123 	int a;
124 	if (!(mchannels[mix] & (1 << channel)))
125 		return 0;
126 	a = hwread(vortex->mmio,
127 		   VORTEX_MIX_INVOL_A + (((mix << 5) + channel) << 2));
128 	/*
129 	   if (rampchs[mix] == 0)
130 	   a = FP2LinearFrac(a);
131 	   else
132 	   a = FP2LinearFracWT(a);
133 	 */
134 	*vol = a;
135 	return (0);
136 }
137 
138 static unsigned int vortex_mix_boost6db(unsigned char vol)
139 {
140 	return (vol + 8);	/* WOW! what a complex function! */
141 }
142 
143 static void vortex_mix_rampvolume(vortex_t * vortex, int mix)
144 {
145 	int ch;
146 	char a;
147 	// This function is intended for ramping down only (see vortex_disableinput()).
148 	for (ch = 0; ch < 0x20; ch++) {
149 		if (((1 << ch) & rampchs[mix]) == 0)
150 			continue;
151 		a = hwread(vortex->mmio,
152 			   VORTEX_MIX_INVOL_B + (((mix << 5) + ch) << 2));
153 		if (a > -126) {
154 			a -= 2;
155 			hwwrite(vortex->mmio,
156 				VORTEX_MIX_INVOL_A +
157 				(((mix << 5) + ch) << 2), a);
158 			hwwrite(vortex->mmio,
159 				VORTEX_MIX_INVOL_B +
160 				(((mix << 5) + ch) << 2), a);
161 		} else
162 			vortex_mix_killinput(vortex, mix, ch);
163 	}
164 }
165 
166 static int
167 vortex_mix_getenablebit(vortex_t * vortex, unsigned char mix, int mixin)
168 {
169 	int addr, temp;
170 	if (mixin >= 0)
171 		addr = mixin;
172 	else
173 		addr = mixin + 3;
174 	addr = ((mix << 3) + (addr >> 2)) << 2;
175 	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
176 	return ((temp >> (mixin & 3)) & 1);
177 }
178 #endif
179 static void
180 vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
181 			 unsigned char vol)
182 {
183 	int temp;
184 	hwwrite(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2), vol);
185 	if (1) {		/*if (this_10) */
186 		temp = hwread(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2));
187 		if ((temp != 0x80) || (vol == 0x80))
188 			return;
189 	}
190 	hwwrite(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2), vol);
191 }
192 
193 static void
194 vortex_mix_setinputvolumebyte(vortex_t * vortex, unsigned char mix,
195 			      int mixin, unsigned char vol)
196 {
197 	int temp;
198 
199 	hwwrite(vortex->mmio,
200 		VORTEX_MIX_INVOL_A + (((mix << 5) + mixin) << 2), vol);
201 	if (1) {		/* this_10, initialized to 1. */
202 		temp =
203 		    hwread(vortex->mmio,
204 			   VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2));
205 		if ((temp != 0x80) || (vol == 0x80))
206 			return;
207 	}
208 	hwwrite(vortex->mmio,
209 		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), vol);
210 }
211 
212 static void
213 vortex_mix_setenablebit(vortex_t * vortex, unsigned char mix, int mixin, int en)
214 {
215 	int temp, addr;
216 
217 	if (mixin < 0)
218 		addr = (mixin + 3);
219 	else
220 		addr = mixin;
221 	addr = ((mix << 3) + (addr >> 2)) << 2;
222 	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
223 	if (en)
224 		temp |= (1 << (mixin & 3));
225 	else
226 		temp &= ~(1 << (mixin & 3));
227 	/* Mute input. Astatic void crackling? */
228 	hwwrite(vortex->mmio,
229 		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), 0x80);
230 	/* Looks like clear buffer. */
231 	hwwrite(vortex->mmio, VORTEX_MIX_SMP + (mixin << 2), 0x0);
232 	hwwrite(vortex->mmio, VORTEX_MIX_SMP + 4 + (mixin << 2), 0x0);
233 	/* Write enable bit. */
234 	hwwrite(vortex->mmio, VORTEX_MIX_ENIN + addr, temp);
235 }
236 
237 static void
238 vortex_mix_killinput(vortex_t * vortex, unsigned char mix, int mixin)
239 {
240 	rampchs[mix] &= ~(1 << mixin);
241 	vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);
242 	mchannels[mix] &= ~(1 << mixin);
243 	vortex_mix_setenablebit(vortex, mix, mixin, 0);
244 }
245 
246 static void
247 vortex_mix_enableinput(vortex_t * vortex, unsigned char mix, int mixin)
248 {
249 	vortex_mix_killinput(vortex, mix, mixin);
250 	if ((mchannels[mix] & (1 << mixin)) == 0) {
251 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);	/*0x80 : mute */
252 		mchannels[mix] |= (1 << mixin);
253 	}
254 	vortex_mix_setenablebit(vortex, mix, mixin, 1);
255 }
256 
257 static void
258 vortex_mix_disableinput(vortex_t * vortex, unsigned char mix, int channel,
259 			int ramp)
260 {
261 	if (ramp) {
262 		rampchs[mix] |= (1 << channel);
263 		// Register callback.
264 		//vortex_mix_startrampvolume(vortex);
265 		vortex_mix_killinput(vortex, mix, channel);
266 	} else
267 		vortex_mix_killinput(vortex, mix, channel);
268 }
269 
270 static int
271 vortex_mixer_addWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
272 {
273 	int temp, lifeboat = 0, prev;
274 
275 	temp = hwread(vortex->mmio, VORTEX_MIXER_SR);
276 	if ((temp & (1 << ch)) == 0) {
277 		hwwrite(vortex->mmio, VORTEX_MIXER_CHNBASE + (ch << 2), mix);
278 		vortex_mixer_en_sr(vortex, ch);
279 		return 1;
280 	}
281 	prev = VORTEX_MIXER_CHNBASE + (ch << 2);
282 	temp = hwread(vortex->mmio, prev);
283 	while (temp & 0x10) {
284 		prev = VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2);
285 		temp = hwread(vortex->mmio, prev);
286 		//printk(KERN_INFO "vortex: mixAddWTD: while addr=%x, val=%x\n", prev, temp);
287 		if ((++lifeboat) > 0xf) {
288 			dev_err(vortex->card->dev,
289 				"vortex_mixer_addWTD: lifeboat overflow\n");
290 			return 0;
291 		}
292 	}
293 	hwwrite(vortex->mmio, VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2), mix);
294 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
295 	return 1;
296 }
297 
298 static int
299 vortex_mixer_delWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
300 {
301 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
302 	//int esp1f=edi(while)=src, esp10=ch;
303 
304 	eax = hwread(vortex->mmio, VORTEX_MIXER_SR);
305 	if (((1 << ch) & eax) == 0) {
306 		dev_err(vortex->card->dev, "mix ALARM %x\n", eax);
307 		return 0;
308 	}
309 	ebp = VORTEX_MIXER_CHNBASE + (ch << 2);
310 	esp18 = hwread(vortex->mmio, ebp);
311 	if (esp18 & 0x10) {
312 		ebx = (esp18 & 0xf);
313 		if (mix == ebx) {
314 			ebx = VORTEX_MIXER_RTBASE + (mix << 2);
315 			edx = hwread(vortex->mmio, ebx);
316 			//7b60
317 			hwwrite(vortex->mmio, ebp, edx);
318 			hwwrite(vortex->mmio, ebx, 0);
319 		} else {
320 			//7ad3
321 			edx =
322 			    hwread(vortex->mmio,
323 				   VORTEX_MIXER_RTBASE + (ebx << 2));
324 			//printk(KERN_INFO "vortex: mixdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
325 			while ((edx & 0xf) != mix) {
326 				if ((esi) > 0xf) {
327 					dev_err(vortex->card->dev,
328 						"mixdelWTD: error lifeboat overflow\n");
329 					return 0;
330 				}
331 				esp14 = ebx;
332 				ebx = edx & 0xf;
333 				ebp = ebx << 2;
334 				edx =
335 				    hwread(vortex->mmio,
336 					   VORTEX_MIXER_RTBASE + ebp);
337 				//printk(KERN_INFO "vortex: mixdelWTD: while addr=%x, val=%x\n", ebp, edx);
338 				esi++;
339 			}
340 			//7b30
341 			ebp = ebx << 2;
342 			if (edx & 0x10) {	/* Delete entry in between others */
343 				ebx = VORTEX_MIXER_RTBASE + ((edx & 0xf) << 2);
344 				edx = hwread(vortex->mmio, ebx);
345 				//7b60
346 				hwwrite(vortex->mmio,
347 					VORTEX_MIXER_RTBASE + ebp, edx);
348 				hwwrite(vortex->mmio, ebx, 0);
349 				//printk(KERN_INFO "vortex mixdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
350 			} else {	/* Delete last entry */
351 				//7b83
352 				if (esp14 == -1)
353 					hwwrite(vortex->mmio,
354 						VORTEX_MIXER_CHNBASE +
355 						(ch << 2), esp18 & 0xef);
356 				else {
357 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
358 					hwwrite(vortex->mmio,
359 						VORTEX_MIXER_RTBASE +
360 						(esp14 << 2), ebx);
361 					//printk(KERN_INFO "vortex mixdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
362 				}
363 				hwwrite(vortex->mmio,
364 					VORTEX_MIXER_RTBASE + ebp, 0);
365 				return 1;
366 			}
367 		}
368 	} else {
369 		//printk(KERN_INFO "removed last mix\n");
370 		//7be0
371 		vortex_mixer_dis_sr(vortex, ch);
372 		hwwrite(vortex->mmio, ebp, 0);
373 	}
374 	return 1;
375 }
376 
377 static void vortex_mixer_init(vortex_t * vortex)
378 {
379 	u32 addr;
380 	int x;
381 
382 	// FIXME: get rid of this crap.
383 	memset(mchannels, 0, NR_MIXOUT * sizeof(int));
384 	memset(rampchs, 0, NR_MIXOUT * sizeof(int));
385 
386 	addr = VORTEX_MIX_SMP + 0x17c;
387 	for (x = 0x5f; x >= 0; x--) {
388 		hwwrite(vortex->mmio, addr, 0);
389 		addr -= 4;
390 	}
391 	addr = VORTEX_MIX_ENIN + 0x1fc;
392 	for (x = 0x7f; x >= 0; x--) {
393 		hwwrite(vortex->mmio, addr, 0);
394 		addr -= 4;
395 	}
396 	addr = VORTEX_MIX_SMP + 0x17c;
397 	for (x = 0x5f; x >= 0; x--) {
398 		hwwrite(vortex->mmio, addr, 0);
399 		addr -= 4;
400 	}
401 	addr = VORTEX_MIX_INVOL_A + 0x7fc;
402 	for (x = 0x1ff; x >= 0; x--) {
403 		hwwrite(vortex->mmio, addr, 0x80);
404 		addr -= 4;
405 	}
406 	addr = VORTEX_MIX_VOL_A + 0x3c;
407 	for (x = 0xf; x >= 0; x--) {
408 		hwwrite(vortex->mmio, addr, 0x80);
409 		addr -= 4;
410 	}
411 	addr = VORTEX_MIX_INVOL_B + 0x7fc;
412 	for (x = 0x1ff; x >= 0; x--) {
413 		hwwrite(vortex->mmio, addr, 0x80);
414 		addr -= 4;
415 	}
416 	addr = VORTEX_MIX_VOL_B + 0x3c;
417 	for (x = 0xf; x >= 0; x--) {
418 		hwwrite(vortex->mmio, addr, 0x80);
419 		addr -= 4;
420 	}
421 	addr = VORTEX_MIXER_RTBASE + (MIXER_RTBASE_SIZE - 1) * 4;
422 	for (x = (MIXER_RTBASE_SIZE - 1); x >= 0; x--) {
423 		hwwrite(vortex->mmio, addr, 0x0);
424 		addr -= 4;
425 	}
426 	hwwrite(vortex->mmio, VORTEX_MIXER_SR, 0);
427 
428 	/* Set clipping ceiling (this may be all wrong). */
429 	/*
430 	for (x = 0; x < 0x80; x++) {
431 		hwwrite(vortex->mmio, VORTEX_MIXER_CLIP + (x << 2), 0x3ffff);
432 	}
433 	*/
434 	/*
435 	   call CAsp4Mix__Initialize_CAsp4HwIO____CAsp4Mixer____
436 	   Register ISR callback for volume smooth fade out.
437 	   Maybe this avoids clicks when press "stop" ?
438 	 */
439 }
440 
441 /*  SRC (CAsp4Src.s and CAsp4SrcBlock) */
442 
443 static void vortex_src_en_sr(vortex_t * vortex, int channel)
444 {
445 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
446 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) | (0x1 << channel));
447 }
448 
449 static void vortex_src_dis_sr(vortex_t * vortex, int channel)
450 {
451 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
452 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) & ~(0x1 << channel));
453 }
454 
455 static void vortex_src_flushbuffers(vortex_t * vortex, unsigned char src)
456 {
457 	int i;
458 
459 	for (i = 0x1f; i >= 0; i--)
460 		hwwrite(vortex->mmio,
461 			VORTEX_SRC_DATA0 + (src << 7) + (i << 2), 0);
462 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3), 0);
463 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3) + 4, 0);
464 }
465 
466 static void vortex_src_cleardrift(vortex_t * vortex, unsigned char src)
467 {
468 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
469 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT1 + (src << 2), 0);
470 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
471 }
472 
473 static void
474 vortex_src_set_throttlesource(vortex_t * vortex, unsigned char src, int en)
475 {
476 	int temp;
477 
478 	temp = hwread(vortex->mmio, VORTEX_SRC_SOURCE);
479 	if (en)
480 		temp |= 1 << src;
481 	else
482 		temp &= ~(1 << src);
483 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCE, temp);
484 }
485 
486 static int
487 vortex_src_persist_convratio(vortex_t * vortex, unsigned char src, int ratio)
488 {
489 	int temp, lifeboat = 0;
490 
491 	do {
492 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), ratio);
493 		temp = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
494 		if ((++lifeboat) > 0x9) {
495 			dev_err(vortex->card->dev, "Src cvr fail\n");
496 			break;
497 		}
498 	}
499 	while (temp != ratio);
500 	return temp;
501 }
502 
503 #if 0
504 static void vortex_src_slowlock(vortex_t * vortex, unsigned char src)
505 {
506 	int temp;
507 
508 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
509 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
510 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
511 	if (temp & 0x200)
512 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
513 			temp & ~0x200L);
514 }
515 
516 static void
517 vortex_src_change_convratio(vortex_t * vortex, unsigned char src, int ratio)
518 {
519 	int temp, a;
520 
521 	if ((ratio & 0x10000) && (ratio != 0x10000)) {
522 		if (ratio & 0x3fff)
523 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 1;
524 		else
525 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 2;
526 	} else
527 		a = 0xc;
528 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
529 	if (((temp >> 4) & 0xf) != a)
530 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
531 			(temp & 0xf) | ((a & 0xf) << 4));
532 
533 	vortex_src_persist_convratio(vortex, src, ratio);
534 }
535 
536 static int
537 vortex_src_checkratio(vortex_t * vortex, unsigned char src,
538 		      unsigned int desired_ratio)
539 {
540 	int hw_ratio, lifeboat = 0;
541 
542 	hw_ratio = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
543 
544 	while (hw_ratio != desired_ratio) {
545 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), desired_ratio);
546 
547 		if ((lifeboat++) > 15) {
548 			pr_err( "Vortex: could not set src-%d from %d to %d\n",
549 			       src, hw_ratio, desired_ratio);
550 			break;
551 		}
552 	}
553 
554 	return hw_ratio;
555 }
556 
557 #endif
558 /*
559  Objective: Set samplerate for given SRC module.
560  Arguments:
561 	card:	pointer to vortex_t strcut.
562 	src:	Integer index of the SRC module.
563 	cr:		Current sample rate conversion factor.
564 	b:		unknown 16 bit value.
565 	sweep:	Enable Samplerate fade from cr toward tr flag.
566 	dirplay: 1: playback, 0: recording.
567 	sl:		Slow Lock flag.
568 	tr:		Target samplerate conversion.
569 	thsource: Throttle source flag (no idea what that means).
570 */
571 static void vortex_src_setupchannel(vortex_t * card, unsigned char src,
572 			unsigned int cr, unsigned int b, int sweep, int d,
573 			int dirplay, int sl, unsigned int tr, int thsource)
574 {
575 	// noplayback: d=2,4,7,0xa,0xb when using first 2 src's.
576 	// c: enables pitch sweep.
577 	// looks like g is c related. Maybe g is a sweep parameter ?
578 	// g = cvr
579 	// dirplay: 0 = recording, 1 = playback
580 	// d = src hw index.
581 
582 	int esi, ebp = 0, esp10;
583 
584 	vortex_src_flushbuffers(card, src);
585 
586 	if (sweep) {
587 		if ((tr & 0x10000) && (tr != 0x10000)) {
588 			tr = 0;
589 			esi = 0x7;
590 		} else {
591 			if ((((short)tr) < 0) && (tr != 0x8000)) {
592 				tr = 0;
593 				esi = 0x8;
594 			} else {
595 				tr = 1;
596 				esi = 0xc;
597 			}
598 		}
599 	} else {
600 		if ((cr & 0x10000) && (cr != 0x10000)) {
601 			tr = 0;	/*ebx = 0 */
602 			esi = 0x11 - ((cr >> 0xe) & 7);
603 			if (cr & 0x3fff)
604 				esi -= 1;
605 			else
606 				esi -= 2;
607 		} else {
608 			tr = 1;
609 			esi = 0xc;
610 		}
611 	}
612 	vortex_src_cleardrift(card, src);
613 	vortex_src_set_throttlesource(card, src, thsource);
614 
615 	if ((dirplay == 0) && (sweep == 0)) {
616 		if (tr)
617 			esp10 = 0xf;
618 		else
619 			esp10 = 0xc;
620 		ebp = 0;
621 	} else {
622 		if (tr)
623 			ebp = 0xf;
624 		else
625 			ebp = 0xc;
626 		esp10 = 0;
627 	}
628 	hwwrite(card->mmio, VORTEX_SRC_U0 + (src << 2),
629 		(sl << 0x9) | (sweep << 0x8) | ((esi & 0xf) << 4) | d);
630 	/* 0xc0   esi=0xc c=f=0 d=0 */
631 	vortex_src_persist_convratio(card, src, cr);
632 	hwwrite(card->mmio, VORTEX_SRC_U1 + (src << 2), b & 0xffff);
633 	/* 0   b=0 */
634 	hwwrite(card->mmio, VORTEX_SRC_U2 + (src << 2),
635 		(tr << 0x11) | (dirplay << 0x10) | (ebp << 0x8) | esp10);
636 	/* 0x30f00 e=g=1 esp10=0 ebp=f */
637 	//printk(KERN_INFO "vortex: SRC %d, d=0x%x, esi=0x%x, esp10=0x%x, ebp=0x%x\n", src, d, esi, esp10, ebp);
638 }
639 
640 static void vortex_srcblock_init(vortex_t * vortex)
641 {
642 	u32 addr;
643 	int x;
644 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCESIZE, 0x1ff);
645 	/*
646 	   for (x=0; x<0x10; x++) {
647 	   vortex_src_init(&vortex_src[x], x);
648 	   }
649 	 */
650 	//addr = 0xcc3c;
651 	//addr = 0x26c3c;
652 	addr = VORTEX_SRC_RTBASE + 0x3c;
653 	for (x = 0xf; x >= 0; x--) {
654 		hwwrite(vortex->mmio, addr, 0);
655 		addr -= 4;
656 	}
657 	//addr = 0xcc94;
658 	//addr = 0x26c94;
659 	addr = VORTEX_SRC_CHNBASE + 0x54;
660 	for (x = 0x15; x >= 0; x--) {
661 		hwwrite(vortex->mmio, addr, 0);
662 		addr -= 4;
663 	}
664 }
665 
666 static int
667 vortex_src_addWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
668 {
669 	int temp, lifeboat = 0, prev;
670 	// esp13 = src
671 
672 	temp = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
673 	if ((temp & (1 << ch)) == 0) {
674 		hwwrite(vortex->mmio, VORTEX_SRC_CHNBASE + (ch << 2), src);
675 		vortex_src_en_sr(vortex, ch);
676 		return 1;
677 	}
678 	prev = VORTEX_SRC_CHNBASE + (ch << 2);	/*ebp */
679 	temp = hwread(vortex->mmio, prev);
680 	//while (temp & NR_SRC) {
681 	while (temp & 0x10) {
682 		prev = VORTEX_SRC_RTBASE + ((temp & 0xf) << 2);	/*esp12 */
683 		//prev = VORTEX_SRC_RTBASE + ((temp & (NR_SRC-1)) << 2); /*esp12*/
684 		temp = hwread(vortex->mmio, prev);
685 		//printk(KERN_INFO "vortex: srcAddWTD: while addr=%x, val=%x\n", prev, temp);
686 		if ((++lifeboat) > 0xf) {
687 			dev_err(vortex->card->dev,
688 				"vortex_src_addWTD: lifeboat overflow\n");
689 			return 0;
690 		}
691 	}
692 	hwwrite(vortex->mmio, VORTEX_SRC_RTBASE + ((temp & 0xf) << 2), src);
693 	//hwwrite(vortex->mmio, prev, (temp & (NR_SRC-1)) | NR_SRC);
694 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
695 	return 1;
696 }
697 
698 static int
699 vortex_src_delWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
700 {
701 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
702 	//int esp1f=edi(while)=src, esp10=ch;
703 
704 	eax = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
705 	if (((1 << ch) & eax) == 0) {
706 		dev_err(vortex->card->dev, "src alarm\n");
707 		return 0;
708 	}
709 	ebp = VORTEX_SRC_CHNBASE + (ch << 2);
710 	esp18 = hwread(vortex->mmio, ebp);
711 	if (esp18 & 0x10) {
712 		ebx = (esp18 & 0xf);
713 		if (src == ebx) {
714 			ebx = VORTEX_SRC_RTBASE + (src << 2);
715 			edx = hwread(vortex->mmio, ebx);
716 			//7b60
717 			hwwrite(vortex->mmio, ebp, edx);
718 			hwwrite(vortex->mmio, ebx, 0);
719 		} else {
720 			//7ad3
721 			edx =
722 			    hwread(vortex->mmio,
723 				   VORTEX_SRC_RTBASE + (ebx << 2));
724 			//printk(KERN_INFO "vortex: srcdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
725 			while ((edx & 0xf) != src) {
726 				if ((esi) > 0xf) {
727 					dev_warn(vortex->card->dev,
728 						 "srcdelWTD: error, lifeboat overflow\n");
729 					return 0;
730 				}
731 				esp14 = ebx;
732 				ebx = edx & 0xf;
733 				ebp = ebx << 2;
734 				edx =
735 				    hwread(vortex->mmio,
736 					   VORTEX_SRC_RTBASE + ebp);
737 				//printk(KERN_INFO "vortex: srcdelWTD: while addr=%x, val=%x\n", ebp, edx);
738 				esi++;
739 			}
740 			//7b30
741 			ebp = ebx << 2;
742 			if (edx & 0x10) {	/* Delete entry in between others */
743 				ebx = VORTEX_SRC_RTBASE + ((edx & 0xf) << 2);
744 				edx = hwread(vortex->mmio, ebx);
745 				//7b60
746 				hwwrite(vortex->mmio,
747 					VORTEX_SRC_RTBASE + ebp, edx);
748 				hwwrite(vortex->mmio, ebx, 0);
749 				//printk(KERN_INFO "vortex srcdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
750 			} else {	/* Delete last entry */
751 				//7b83
752 				if (esp14 == -1)
753 					hwwrite(vortex->mmio,
754 						VORTEX_SRC_CHNBASE +
755 						(ch << 2), esp18 & 0xef);
756 				else {
757 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
758 					hwwrite(vortex->mmio,
759 						VORTEX_SRC_RTBASE +
760 						(esp14 << 2), ebx);
761 					//printk(KERN_INFO"vortex srcdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
762 				}
763 				hwwrite(vortex->mmio,
764 					VORTEX_SRC_RTBASE + ebp, 0);
765 				return 1;
766 			}
767 		}
768 	} else {
769 		//7be0
770 		vortex_src_dis_sr(vortex, ch);
771 		hwwrite(vortex->mmio, ebp, 0);
772 	}
773 	return 1;
774 }
775 
776  /*FIFO*/
777 
778 static void
779 vortex_fifo_clearadbdata(vortex_t * vortex, int fifo, int x)
780 {
781 	for (x--; x >= 0; x--)
782 		hwwrite(vortex->mmio,
783 			VORTEX_FIFO_ADBDATA +
784 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
785 }
786 
787 #if 0
788 static void vortex_fifo_adbinitialize(vortex_t * vortex, int fifo, int j)
789 {
790 	vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
791 #ifdef CHIP_AU8820
792 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
793 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
794 #else
795 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
796 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
797 #endif
798 }
799 #endif
800 static void vortex_fifo_setadbvalid(vortex_t * vortex, int fifo, int en)
801 {
802 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
803 		(hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2)) &
804 		 0xffffffef) | ((1 & en) << 4) | FIFO_U1);
805 }
806 
807 static void
808 vortex_fifo_setadbctrl(vortex_t * vortex, int fifo, int stereo, int priority,
809 		       int empty, int valid, int f)
810 {
811 	int temp, lifeboat = 0;
812 	//int this_8[NR_ADB] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; /* position */
813 	int this_4 = 0x2;
814 	/* f seems priority related.
815 	 * CAsp4AdbDma::SetPriority is the only place that calls SetAdbCtrl with f set to 1
816 	 * every where else it is set to 0. It seems, however, that CAsp4AdbDma::SetPriority
817 	 * is never called, thus the f related bits remain a mystery for now.
818 	 */
819 	do {
820 		temp = hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
821 		if (lifeboat++ > 0xbb8) {
822 			dev_err(vortex->card->dev,
823 				"vortex_fifo_setadbctrl fail\n");
824 			break;
825 		}
826 	}
827 	while (temp & FIFO_RDONLY);
828 
829 	// AU8830 semes to take some special care about fifo content (data).
830 	// But i'm just to lazy to translate that :)
831 	if (valid) {
832 		if ((temp & FIFO_VALID) == 0) {
833 			//this_8[fifo] = 0;
834 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);	// this_4
835 #ifdef CHIP_AU8820
836 			temp = (this_4 & 0x1f) << 0xb;
837 #else
838 			temp = (this_4 & 0x3f) << 0xc;
839 #endif
840 			temp = (temp & 0xfffffffd) | ((stereo & 1) << 1);
841 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
842 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
843 			temp |= FIFO_U1;
844 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
845 #ifdef CHIP_AU8820
846 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
847 #endif
848 #ifdef CHIP_AU8830
849 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
850 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
851 #endif
852 #ifdef CHIP_AU8810
853 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
854 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
855 #endif
856 		}
857 	} else {
858 		if (temp & FIFO_VALID) {
859 #ifdef CHIP_AU8820
860 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
861 #endif
862 #ifdef CHIP_AU8830
863 			temp =
864 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
865 #endif
866 #ifdef CHIP_AU8810
867 			temp =
868 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
869 #endif
870 		} else
871 			/*if (this_8[fifo]) */
872 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
873 	}
874 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2), temp);
875 	hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
876 }
877 
878 #ifndef CHIP_AU8810
879 static void vortex_fifo_clearwtdata(vortex_t * vortex, int fifo, int x)
880 {
881 	if (x < 1)
882 		return;
883 	for (x--; x >= 0; x--)
884 		hwwrite(vortex->mmio,
885 			VORTEX_FIFO_WTDATA +
886 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
887 }
888 
889 static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j)
890 {
891 	vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
892 #ifdef CHIP_AU8820
893 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
894 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
895 #else
896 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
897 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
898 #endif
899 }
900 
901 static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en)
902 {
903 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
904 		(hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2)) &
905 		 0xffffffef) | ((en & 1) << 4) | FIFO_U1);
906 }
907 
908 static void
909 vortex_fifo_setwtctrl(vortex_t * vortex, int fifo, int ctrl, int priority,
910 		      int empty, int valid, int f)
911 {
912 	int temp = 0, lifeboat = 0;
913 	int this_4 = 2;
914 
915 	do {
916 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
917 		if (lifeboat++ > 0xbb8) {
918 			dev_err(vortex->card->dev,
919 				"vortex_fifo_setwtctrl fail\n");
920 			break;
921 		}
922 	}
923 	while (temp & FIFO_RDONLY);
924 
925 	if (valid) {
926 		if ((temp & FIFO_VALID) == 0) {
927 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);	// this_4
928 #ifdef CHIP_AU8820
929 			temp = (this_4 & 0x1f) << 0xb;
930 #else
931 			temp = (this_4 & 0x3f) << 0xc;
932 #endif
933 			temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
934 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
935 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
936 			temp |= FIFO_U1;
937 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
938 #ifdef CHIP_AU8820
939 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
940 #endif
941 #ifdef CHIP_AU8830
942 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
943 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
944 #endif
945 #ifdef CHIP_AU8810
946 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
947 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
948 #endif
949 		}
950 	} else {
951 		if (temp & FIFO_VALID) {
952 #ifdef CHIP_AU8820
953 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
954 #endif
955 #ifdef CHIP_AU8830
956 			temp =
957 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
958 #endif
959 #ifdef CHIP_AU8810
960 			temp =
961 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
962 #endif
963 		} else
964 			/*if (this_8[fifo]) */
965 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
966 	}
967 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
968 	hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
969 
970 /*
971     do {
972 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
973 		if (lifeboat++ > 0xbb8) {
974 			pr_err( "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
975 			break;
976 		}
977     } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
978 
979 
980 	if (valid) {
981 		if (temp & FIFO_VALID) {
982 			temp = 0x40000;
983 			//temp |= 0x08000000;
984 			//temp |= 0x10000000;
985 			//temp |= 0x04000000;
986 			//temp |= 0x00400000;
987 			temp |= 0x1c400000;
988 			temp &= 0xFFFFFFF3;
989 			temp &= 0xFFFFFFEF;
990 			temp |= (valid & 1) << 4;
991 			hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
992 			return;
993 		} else {
994 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
995 			return;
996 		}
997 	} else {
998 		temp &= 0xffffffef;
999 		temp |= 0x08000000;
1000 		temp |= 0x10000000;
1001 		temp |= 0x04000000;
1002 		temp |= 0x00400000;
1003 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1004 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
1005 		//((temp >> 6) & 0x3f)
1006 
1007 		priority = 0;
1008 		if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
1009 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
1010 		valid = 0xfb;
1011 		temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1012 		temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1013 		temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1014 		temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1015 		temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1016 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1017 	}
1018 
1019 	*/
1020 
1021 	/*
1022 	   temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1023 	   temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1024 	   temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1025 	   temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1026 	   temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1027 	   #ifdef FIFO_BITS
1028 	   temp = temp | FIFO_BITS | 40000;
1029 	   #endif
1030 	   // 0x1c440010, 0x1c400000
1031 	   hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1032 	 */
1033 }
1034 
1035 #endif
1036 static void vortex_fifo_init(vortex_t * vortex)
1037 {
1038 	int x;
1039 	u32 addr;
1040 
1041 	/* ADB DMA channels fifos. */
1042 	addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1043 	for (x = NR_ADB - 1; x >= 0; x--) {
1044 		hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1045 		if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1046 			dev_err(vortex->card->dev, "bad adb fifo reset!");
1047 		vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1048 		addr -= 4;
1049 	}
1050 
1051 #ifndef CHIP_AU8810
1052 	/* WT DMA channels fifos. */
1053 	addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1054 	for (x = NR_WT - 1; x >= 0; x--) {
1055 		hwwrite(vortex->mmio, addr, FIFO_U0);
1056 		if (hwread(vortex->mmio, addr) != FIFO_U0)
1057 			dev_err(vortex->card->dev,
1058 				"bad wt fifo reset (0x%08x, 0x%08x)!\n",
1059 				addr, hwread(vortex->mmio, addr));
1060 		vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1061 		addr -= 4;
1062 	}
1063 #endif
1064 	/* trigger... */
1065 #ifdef CHIP_AU8820
1066 	hwwrite(vortex->mmio, 0xf8c0, 0xd03);	//0x0843 0xd6b
1067 #else
1068 #ifdef CHIP_AU8830
1069 	hwwrite(vortex->mmio, 0x17000, 0x61);	/* wt a */
1070 	hwwrite(vortex->mmio, 0x17004, 0x61);	/* wt b */
1071 #endif
1072 	hwwrite(vortex->mmio, 0x17008, 0x61);	/* adb */
1073 #endif
1074 }
1075 
1076 /* ADBDMA */
1077 
1078 static void vortex_adbdma_init(vortex_t * vortex)
1079 {
1080 }
1081 
1082 static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1083 {
1084 	stream_t *dma = &vortex->dma_adb[adbdma];
1085 
1086 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1087 		dma->dma_ctrl);
1088 }
1089 
1090 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1091 {
1092 	stream_t *dma = &vortex->dma_adb[adbdma];
1093 	//hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1094 	hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1095 		sb << ((0xf - (adbdma & 0xf)) * 2));
1096 	dma->period_real = dma->period_virt = sb;
1097 }
1098 
1099 static void
1100 vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1101 			 int psize, int count)
1102 {
1103 	stream_t *dma = &vortex->dma_adb[adbdma];
1104 
1105 	dma->period_bytes = psize;
1106 	dma->nr_periods = count;
1107 
1108 	dma->cfg0 = 0;
1109 	dma->cfg1 = 0;
1110 	switch (count) {
1111 		/* Four or more pages */
1112 	default:
1113 	case 4:
1114 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1115 		hwwrite(vortex->mmio,
1116 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1117 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1118 		/* 3 pages */
1119 	case 3:
1120 		dma->cfg0 |= 0x12000000;
1121 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1122 		hwwrite(vortex->mmio,
1123 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1124 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1125 		/* 2 pages */
1126 	case 2:
1127 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1128 		hwwrite(vortex->mmio,
1129 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1130 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1131 		/* 1 page */
1132 	case 1:
1133 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1134 		hwwrite(vortex->mmio,
1135 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1136 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1137 		break;
1138 	}
1139 	/*
1140 	pr_debug( "vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n",
1141 	       dma->cfg0, dma->cfg1);
1142 	*/
1143 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1144 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1145 
1146 	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1147 	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1148 }
1149 
1150 static void
1151 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1152 		      int fmt, int stereo, u32 offset)
1153 {
1154 	stream_t *dma = &vortex->dma_adb[adbdma];
1155 
1156 	dma->dma_unknown = stereo;
1157 	dma->dma_ctrl =
1158 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1159 	/* Enable PCMOUT interrupts. */
1160 	dma->dma_ctrl =
1161 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1162 
1163 	dma->dma_ctrl =
1164 	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1165 	dma->dma_ctrl =
1166 	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1167 
1168 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1169 		dma->dma_ctrl);
1170 	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1171 }
1172 
1173 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1174 {
1175 	stream_t *dma = &vortex->dma_adb[adbdma];
1176 	int page, p, pp, delta, i;
1177 
1178 	page =
1179 	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1180 	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1181 	if (dma->nr_periods >= 4)
1182 		delta = (page - dma->period_real) & 3;
1183 	else {
1184 		delta = (page - dma->period_real);
1185 		if (delta < 0)
1186 			delta += dma->nr_periods;
1187 	}
1188 	if (delta == 0)
1189 		return 0;
1190 
1191 	/* refresh hw page table */
1192 	if (dma->nr_periods > 4) {
1193 		for (i = 0; i < delta; i++) {
1194 			/* p: audio buffer page index */
1195 			p = dma->period_virt + i + 4;
1196 			if (p >= dma->nr_periods)
1197 				p -= dma->nr_periods;
1198 			/* pp: hardware DMA page index. */
1199 			pp = dma->period_real + i;
1200 			if (pp >= 4)
1201 				pp -= 4;
1202 			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1203 			hwwrite(vortex->mmio,
1204 				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1205 				snd_pcm_sgbuf_get_addr(dma->substream,
1206 				dma->period_bytes * p));
1207 			/* Force write thru cache. */
1208 			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1209 			       (((adbdma << 2) + pp) << 2));
1210 		}
1211 	}
1212 	dma->period_virt += delta;
1213 	dma->period_real = page;
1214 	if (dma->period_virt >= dma->nr_periods)
1215 		dma->period_virt -= dma->nr_periods;
1216 	if (delta != 1)
1217 		dev_info(vortex->card->dev,
1218 			 "%d virt=%d, real=%d, delta=%d\n",
1219 			 adbdma, dma->period_virt, dma->period_real, delta);
1220 
1221 	return delta;
1222 }
1223 
1224 
1225 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1226 	stream_t *dma = &vortex->dma_adb[adbdma];
1227 	int p, pp, i;
1228 
1229 	/* refresh hw page table */
1230 	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1231 		/* p: audio buffer page index */
1232 		p = dma->period_virt + i;
1233 		if (p >= dma->nr_periods)
1234 			p -= dma->nr_periods;
1235 		/* pp: hardware DMA page index. */
1236 		pp = dma->period_real + i;
1237 		if (dma->nr_periods < 4) {
1238 			if (pp >= dma->nr_periods)
1239 				pp -= dma->nr_periods;
1240 		}
1241 		else {
1242 			if (pp >= 4)
1243 				pp -= 4;
1244 		}
1245 		hwwrite(vortex->mmio,
1246 			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1247 			snd_pcm_sgbuf_get_addr(dma->substream,
1248 					       dma->period_bytes * p));
1249 		/* Force write thru cache. */
1250 		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1251 	}
1252 }
1253 
1254 static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1255 {
1256 	stream_t *dma = &vortex->dma_adb[adbdma];
1257 	int temp, page, delta;
1258 
1259 	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1260 	page = (temp & ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1261 	if (dma->nr_periods >= 4)
1262 		delta = (page - dma->period_real) & 3;
1263 	else {
1264 		delta = (page - dma->period_real);
1265 		if (delta < 0)
1266 			delta += dma->nr_periods;
1267 	}
1268 	return (dma->period_virt + delta) * dma->period_bytes
1269 		+ (temp & (dma->period_bytes - 1));
1270 }
1271 
1272 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1273 {
1274 	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1275 	stream_t *dma = &vortex->dma_adb[adbdma];
1276 
1277 	switch (dma->fifo_status) {
1278 	case FIFO_START:
1279 		vortex_fifo_setadbvalid(vortex, adbdma,
1280 					dma->fifo_enabled ? 1 : 0);
1281 		break;
1282 	case FIFO_STOP:
1283 		this_8 = 1;
1284 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1285 			dma->dma_ctrl);
1286 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1287 				       this_4, this_8,
1288 				       dma->fifo_enabled ? 1 : 0, 0);
1289 		break;
1290 	case FIFO_PAUSE:
1291 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1292 				       this_4, this_8,
1293 				       dma->fifo_enabled ? 1 : 0, 0);
1294 		break;
1295 	}
1296 	dma->fifo_status = FIFO_START;
1297 }
1298 
1299 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1300 {
1301 	stream_t *dma = &vortex->dma_adb[adbdma];
1302 
1303 	int this_8 = 1, this_4 = 0;
1304 	switch (dma->fifo_status) {
1305 	case FIFO_STOP:
1306 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1307 			dma->dma_ctrl);
1308 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1309 				       this_4, this_8,
1310 				       dma->fifo_enabled ? 1 : 0, 0);
1311 		break;
1312 	case FIFO_PAUSE:
1313 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1314 				       this_4, this_8,
1315 				       dma->fifo_enabled ? 1 : 0, 0);
1316 		break;
1317 	}
1318 	dma->fifo_status = FIFO_START;
1319 }
1320 
1321 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1322 {
1323 	stream_t *dma = &vortex->dma_adb[adbdma];
1324 
1325 	int this_8 = 0, this_4 = 0;
1326 	switch (dma->fifo_status) {
1327 	case FIFO_START:
1328 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1329 				       this_4, this_8, 0, 0);
1330 		break;
1331 	case FIFO_STOP:
1332 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1333 			dma->dma_ctrl);
1334 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1335 				       this_4, this_8, 0, 0);
1336 		break;
1337 	}
1338 	dma->fifo_status = FIFO_PAUSE;
1339 }
1340 
1341 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1342 {
1343 	stream_t *dma = &vortex->dma_adb[adbdma];
1344 
1345 	int this_4 = 0, this_8 = 0;
1346 	if (dma->fifo_status == FIFO_START)
1347 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1348 				       this_4, this_8, 0, 0);
1349 	else if (dma->fifo_status == FIFO_STOP)
1350 		return;
1351 	dma->fifo_status = FIFO_STOP;
1352 	dma->fifo_enabled = 0;
1353 }
1354 
1355 /* WTDMA */
1356 
1357 #ifndef CHIP_AU8810
1358 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1359 {
1360 	//int this_7c=dma_ctrl;
1361 	stream_t *dma = &vortex->dma_wt[wtdma];
1362 
1363 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1364 }
1365 
1366 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1367 {
1368 	stream_t *dma = &vortex->dma_wt[wtdma];
1369 	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1370 	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1371 		sb << ((0xf - (wtdma & 0xf)) * 2));
1372 	dma->period_real = dma->period_virt = sb;
1373 }
1374 
1375 static void
1376 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1377 			int psize, int count)
1378 {
1379 	stream_t *dma = &vortex->dma_wt[wtdma];
1380 
1381 	dma->period_bytes = psize;
1382 	dma->nr_periods = count;
1383 
1384 	dma->cfg0 = 0;
1385 	dma->cfg1 = 0;
1386 	switch (count) {
1387 		/* Four or more pages */
1388 	default:
1389 	case 4:
1390 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1391 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1392 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1393 		/* 3 pages */
1394 	case 3:
1395 		dma->cfg0 |= 0x12000000;
1396 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1397 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1398 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1399 		/* 2 pages */
1400 	case 2:
1401 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1402 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1403 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1404 		/* 1 page */
1405 	case 1:
1406 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1407 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1408 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1409 		break;
1410 	}
1411 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1412 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1413 
1414 	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1415 	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1416 }
1417 
1418 static void
1419 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1420 		     /*int e, */ u32 offset)
1421 {
1422 	stream_t *dma = &vortex->dma_wt[wtdma];
1423 
1424 	//dma->this_08 = e;
1425 	dma->dma_unknown = d;
1426 	dma->dma_ctrl = 0;
1427 	dma->dma_ctrl =
1428 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1429 	/* PCMOUT interrupt */
1430 	dma->dma_ctrl =
1431 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1432 	/* Always playback. */
1433 	dma->dma_ctrl |= (1 << DIR_SHIFT);
1434 	/* Audio Format */
1435 	dma->dma_ctrl =
1436 	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1437 	/* Write into hardware */
1438 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1439 }
1440 
1441 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1442 {
1443 	stream_t *dma = &vortex->dma_wt[wtdma];
1444 	int page, p, pp, delta, i;
1445 
1446 	page =
1447 	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
1448 	     WT_SUBBUF_MASK)
1449 	    >> WT_SUBBUF_SHIFT;
1450 	if (dma->nr_periods >= 4)
1451 		delta = (page - dma->period_real) & 3;
1452 	else {
1453 		delta = (page - dma->period_real);
1454 		if (delta < 0)
1455 			delta += dma->nr_periods;
1456 	}
1457 	if (delta == 0)
1458 		return 0;
1459 
1460 	/* refresh hw page table */
1461 	if (dma->nr_periods > 4) {
1462 		for (i = 0; i < delta; i++) {
1463 			/* p: audio buffer page index */
1464 			p = dma->period_virt + i + 4;
1465 			if (p >= dma->nr_periods)
1466 				p -= dma->nr_periods;
1467 			/* pp: hardware DMA page index. */
1468 			pp = dma->period_real + i;
1469 			if (pp >= 4)
1470 				pp -= 4;
1471 			hwwrite(vortex->mmio,
1472 				VORTEX_WTDMA_BUFBASE +
1473 				(((wtdma << 2) + pp) << 2),
1474 				snd_pcm_sgbuf_get_addr(dma->substream,
1475 						       dma->period_bytes * p));
1476 			/* Force write thru cache. */
1477 			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1478 			       (((wtdma << 2) + pp) << 2));
1479 		}
1480 	}
1481 	dma->period_virt += delta;
1482 	if (dma->period_virt >= dma->nr_periods)
1483 		dma->period_virt -= dma->nr_periods;
1484 	dma->period_real = page;
1485 
1486 	if (delta != 1)
1487 		dev_warn(vortex->card->dev, "wt virt = %d, delta = %d\n",
1488 			 dma->period_virt, delta);
1489 
1490 	return delta;
1491 }
1492 
1493 #if 0
1494 static void
1495 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1496 {
1497 	int temp;
1498 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1499 	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1500 	*pos = temp & POS_MASK;
1501 }
1502 
1503 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1504 {
1505 	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1506 		 POS_SHIFT) & POS_MASK);
1507 }
1508 #endif
1509 static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1510 {
1511 	stream_t *dma = &vortex->dma_wt[wtdma];
1512 	int temp;
1513 
1514 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1515 	temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
1516 	return temp;
1517 }
1518 
1519 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1520 {
1521 	stream_t *dma = &vortex->dma_wt[wtdma];
1522 	int this_8 = 0, this_4 = 0;
1523 
1524 	switch (dma->fifo_status) {
1525 	case FIFO_START:
1526 		vortex_fifo_setwtvalid(vortex, wtdma,
1527 				       dma->fifo_enabled ? 1 : 0);
1528 		break;
1529 	case FIFO_STOP:
1530 		this_8 = 1;
1531 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1532 			dma->dma_ctrl);
1533 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1534 				      this_4, this_8,
1535 				      dma->fifo_enabled ? 1 : 0, 0);
1536 		break;
1537 	case FIFO_PAUSE:
1538 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1539 				      this_4, this_8,
1540 				      dma->fifo_enabled ? 1 : 0, 0);
1541 		break;
1542 	}
1543 	dma->fifo_status = FIFO_START;
1544 }
1545 
1546 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1547 {
1548 	stream_t *dma = &vortex->dma_wt[wtdma];
1549 
1550 	int this_8 = 0, this_4 = 0;
1551 	switch (dma->fifo_status) {
1552 	case FIFO_STOP:
1553 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1554 			dma->dma_ctrl);
1555 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1556 				      this_4, this_8,
1557 				      dma->fifo_enabled ? 1 : 0, 0);
1558 		break;
1559 	case FIFO_PAUSE:
1560 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1561 				      this_4, this_8,
1562 				      dma->fifo_enabled ? 1 : 0, 0);
1563 		break;
1564 	}
1565 	dma->fifo_status = FIFO_START;
1566 }
1567 
1568 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1569 {
1570 	stream_t *dma = &vortex->dma_wt[wtdma];
1571 
1572 	int this_8 = 0, this_4 = 0;
1573 	switch (dma->fifo_status) {
1574 	case FIFO_START:
1575 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1576 				      this_4, this_8, 0, 0);
1577 		break;
1578 	case FIFO_STOP:
1579 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1580 			dma->dma_ctrl);
1581 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1582 				      this_4, this_8, 0, 0);
1583 		break;
1584 	}
1585 	dma->fifo_status = FIFO_PAUSE;
1586 }
1587 
1588 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1589 {
1590 	stream_t *dma = &vortex->dma_wt[wtdma];
1591 
1592 	int this_4 = 0, this_8 = 0;
1593 	if (dma->fifo_status == FIFO_START)
1594 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1595 				      this_4, this_8, 0, 0);
1596 	else if (dma->fifo_status == FIFO_STOP)
1597 		return;
1598 	dma->fifo_status = FIFO_STOP;
1599 	dma->fifo_enabled = 0;
1600 }
1601 
1602 #endif
1603 /* ADB Routes */
1604 
1605 typedef int ADBRamLink;
1606 static void vortex_adb_init(vortex_t * vortex)
1607 {
1608 	int i;
1609 	/* it looks like we are writing more than we need to...
1610 	 * if we write what we are supposed to it breaks things... */
1611 	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1612 	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1613 		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1614 			hwread(vortex->mmio,
1615 			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1616 	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1617 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1618 			hwread(vortex->mmio,
1619 			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1620 	}
1621 }
1622 
1623 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1624 {
1625 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1626 		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1627 }
1628 
1629 static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1630 {
1631 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1632 		hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1633 }
1634 
1635 static void
1636 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1637 		     ADBRamLink * route, int rnum)
1638 {
1639 	int temp, prev, lifeboat = 0;
1640 
1641 	if ((rnum <= 0) || (route == NULL))
1642 		return;
1643 	/* Write last routes. */
1644 	rnum--;
1645 	hwwrite(vortex->mmio,
1646 		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1647 		ROUTE_MASK);
1648 	while (rnum > 0) {
1649 		hwwrite(vortex->mmio,
1650 			VORTEX_ADB_RTBASE +
1651 			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1652 		rnum--;
1653 	}
1654 	/* Write first route. */
1655 	temp =
1656 	    hwread(vortex->mmio,
1657 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1658 	if (temp == ADB_MASK) {
1659 		/* First entry on this channel. */
1660 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1661 			route[0]);
1662 		vortex_adb_en_sr(vortex, channel);
1663 		return;
1664 	}
1665 	/* Not first entry on this channel. Need to link. */
1666 	do {
1667 		prev = temp;
1668 		temp =
1669 		    hwread(vortex->mmio,
1670 			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1671 		if ((lifeboat++) > ADB_MASK) {
1672 			dev_err(vortex->card->dev,
1673 				"vortex_adb_addroutes: unending route! 0x%x\n",
1674 				*route);
1675 			return;
1676 		}
1677 	}
1678 	while (temp != ADB_MASK);
1679 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1680 }
1681 
1682 static void
1683 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1684 		     ADBRamLink route0, ADBRamLink route1)
1685 {
1686 	int temp, lifeboat = 0, prev;
1687 
1688 	/* Find route. */
1689 	temp =
1690 	    hwread(vortex->mmio,
1691 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1692 	if (temp == (route0 & ADB_MASK)) {
1693 		temp =
1694 		    hwread(vortex->mmio,
1695 			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1696 		if ((temp & ADB_MASK) == ADB_MASK)
1697 			vortex_adb_dis_sr(vortex, channel);
1698 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1699 			temp);
1700 		return;
1701 	}
1702 	do {
1703 		prev = temp;
1704 		temp =
1705 		    hwread(vortex->mmio,
1706 			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1707 		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1708 			dev_err(vortex->card->dev,
1709 				"vortex_adb_delroutes: route not found! 0x%x\n",
1710 				route0);
1711 			return;
1712 		}
1713 	}
1714 	while (temp != (route0 & ADB_MASK));
1715 	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1716 	if ((temp & ADB_MASK) == route1)
1717 		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1718 	/* Make bridge over deleted route. */
1719 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1720 }
1721 
1722 static void
1723 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1724 	     unsigned char source, unsigned char dest)
1725 {
1726 	ADBRamLink route;
1727 
1728 	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1729 	if (en) {
1730 		vortex_adb_addroutes(vortex, channel, &route, 1);
1731 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1732 		    && (source >= OFFSET_SRCOUT))
1733 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1734 					  channel);
1735 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1736 			 && (source >= OFFSET_MIXOUT))
1737 			vortex_mixer_addWTD(vortex,
1738 					    (source - OFFSET_MIXOUT), channel);
1739 	} else {
1740 		vortex_adb_delroutes(vortex, channel, route, route);
1741 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1742 		    && (source >= OFFSET_SRCOUT))
1743 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1744 					  channel);
1745 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1746 			 && (source >= OFFSET_MIXOUT))
1747 			vortex_mixer_delWTD(vortex,
1748 					    (source - OFFSET_MIXOUT), channel);
1749 	}
1750 }
1751 
1752 #if 0
1753 static void
1754 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1755 	      unsigned char source, unsigned char dest0, unsigned char dest1)
1756 {
1757 	ADBRamLink route[2];
1758 
1759 	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1760 	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1761 
1762 	if (en) {
1763 		vortex_adb_addroutes(vortex, channel, route, 2);
1764 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1765 		    && (source >= (OFFSET_SRCOUT)))
1766 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1767 					  channel);
1768 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1769 			 && (source >= (OFFSET_MIXOUT)))
1770 			vortex_mixer_addWTD(vortex,
1771 					    (source - OFFSET_MIXOUT), channel);
1772 	} else {
1773 		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1774 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1775 		    && (source >= (OFFSET_SRCOUT)))
1776 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1777 					  channel);
1778 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1779 			 && (source >= (OFFSET_MIXOUT)))
1780 			vortex_mixer_delWTD(vortex,
1781 					    (source - OFFSET_MIXOUT), channel);
1782 	}
1783 }
1784 
1785 #endif
1786 /* Route two sources to same target. Sources must be of same class !!! */
1787 static void
1788 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1789 		unsigned char source0, unsigned char source1,
1790 		unsigned char dest)
1791 {
1792 	ADBRamLink route[2];
1793 
1794 	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1795 	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1796 
1797 	if (dest < 0x10)
1798 		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1799 
1800 	if (en) {
1801 		vortex_adb_addroutes(vortex, ch, route, 2);
1802 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1803 		    && (source0 >= OFFSET_SRCOUT)) {
1804 			vortex_src_addWTD(vortex,
1805 					  (source0 - OFFSET_SRCOUT), ch);
1806 			vortex_src_addWTD(vortex,
1807 					  (source1 - OFFSET_SRCOUT), ch);
1808 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1809 			   && (source0 >= OFFSET_MIXOUT)) {
1810 			vortex_mixer_addWTD(vortex,
1811 					    (source0 - OFFSET_MIXOUT), ch);
1812 			vortex_mixer_addWTD(vortex,
1813 					    (source1 - OFFSET_MIXOUT), ch);
1814 		}
1815 	} else {
1816 		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1817 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1818 		    && (source0 >= OFFSET_SRCOUT)) {
1819 			vortex_src_delWTD(vortex,
1820 					  (source0 - OFFSET_SRCOUT), ch);
1821 			vortex_src_delWTD(vortex,
1822 					  (source1 - OFFSET_SRCOUT), ch);
1823 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1824 			   && (source0 >= OFFSET_MIXOUT)) {
1825 			vortex_mixer_delWTD(vortex,
1826 					    (source0 - OFFSET_MIXOUT), ch);
1827 			vortex_mixer_delWTD(vortex,
1828 					    (source1 - OFFSET_MIXOUT), ch);
1829 		}
1830 	}
1831 }
1832 
1833 /* Connection stuff */
1834 
1835 // Connect adbdma to src('s).
1836 static void
1837 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1838 			     unsigned char adbdma, unsigned char src)
1839 {
1840 	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1841 }
1842 
1843 // Connect SRC to mixin.
1844 static void
1845 vortex_connection_src_mixin(vortex_t * vortex, int en,
1846 			    unsigned char channel, unsigned char src,
1847 			    unsigned char mixin)
1848 {
1849 	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1850 }
1851 
1852 // Connect mixin with mix output.
1853 static void
1854 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1855 			    unsigned char mix, int a)
1856 {
1857 	if (en) {
1858 		vortex_mix_enableinput(vortex, mix, mixin);
1859 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1860 	} else
1861 		vortex_mix_disableinput(vortex, mix, mixin, a);
1862 }
1863 
1864 // Connect absolut address to mixin.
1865 static void
1866 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1867 			    unsigned char channel, unsigned char source,
1868 			    unsigned char mixin)
1869 {
1870 	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1871 }
1872 
1873 static void
1874 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1875 			     unsigned char src, unsigned char adbdma)
1876 {
1877 	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1878 }
1879 
1880 static void
1881 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1882 				 unsigned char ch, unsigned char src0,
1883 				 unsigned char src1, unsigned char adbdma)
1884 {
1885 
1886 	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1887 			ADB_DMA(adbdma));
1888 }
1889 
1890 // mix to absolut address.
1891 static void
1892 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1893 			  unsigned char mix, unsigned char dest)
1894 {
1895 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1896 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1897 }
1898 
1899 // mixer to src.
1900 static void
1901 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1902 			  unsigned char mix, unsigned char src)
1903 {
1904 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1905 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1906 }
1907 
1908 #if 0
1909 static void
1910 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1911 				 unsigned char channel,
1912 				 unsigned char adbdma, unsigned char src0,
1913 				 unsigned char src1)
1914 {
1915 	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1916 		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1917 }
1918 
1919 // Connect two mix to AdbDma.
1920 static void
1921 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1922 				 unsigned char ch, unsigned char mix0,
1923 				 unsigned char mix1, unsigned char adbdma)
1924 {
1925 
1926 	ADBRamLink routes[2];
1927 	routes[0] =
1928 	    (((mix0 +
1929 	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1930 	routes[1] =
1931 	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1932 								   0x20) &
1933 								  ADB_MASK);
1934 	if (en) {
1935 		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1936 		vortex_mixer_addWTD(vortex, mix0, ch);
1937 		vortex_mixer_addWTD(vortex, mix1, ch);
1938 	} else {
1939 		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1940 		vortex_mixer_delWTD(vortex, mix0, ch);
1941 		vortex_mixer_delWTD(vortex, mix1, ch);
1942 	}
1943 }
1944 #endif
1945 
1946 /* CODEC connect. */
1947 
1948 static void
1949 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1950 {
1951 #ifdef CHIP_AU8820
1952 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1953 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1954 #else
1955 #if 1
1956 	// Connect front channels through EQ.
1957 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1958 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1959 	/* Lower volume, since EQ has some gain. */
1960 	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1961 	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1962 	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1963 	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1964 
1965 	/* Check if reg 0x28 has SDAC bit set. */
1966 	if (VORTEX_IS_QUAD(vortex)) {
1967 		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1968 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1969 					  ADB_CODECOUT(0 + 4));
1970 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1971 					  ADB_CODECOUT(1 + 4));
1972 		/* pr_debug( "SDAC detected "); */
1973 	}
1974 #else
1975 	// Use plain direct output to codec.
1976 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1977 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1978 #endif
1979 #endif
1980 }
1981 
1982 static void
1983 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1984 			unsigned char mixin1)
1985 {
1986 	/*
1987 	   Enable: 0x1, 0x1
1988 	   Channel: 0x11, 0x11
1989 	   ADB Source address: 0x48, 0x49
1990 	   Destination Asp4Topology_0x9c,0x98
1991 	 */
1992 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1993 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1994 }
1995 
1996 // Higher level ADB audio path (de)allocator.
1997 
1998 /* Resource manager */
1999 static int resnum[VORTEX_RESOURCE_LAST] =
2000     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
2001 /*
2002  Checkout/Checkin resource of given type.
2003  resmap: resource map to be used. If NULL means that we want to allocate
2004  a DMA resource (root of all other resources of a dma channel).
2005  out: Mean checkout if != 0. Else mean Checkin resource.
2006  restype: Indicates type of resource to be checked in or out.
2007 */
2008 static char
2009 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2010 {
2011 	int i, qty = resnum[restype], resinuse = 0;
2012 
2013 	if (out) {
2014 		/* Gather used resources by all streams. */
2015 		for (i = 0; i < NR_ADB; i++) {
2016 			resinuse |= vortex->dma_adb[i].resources[restype];
2017 		}
2018 		resinuse |= vortex->fixed_res[restype];
2019 		/* Find and take free resource. */
2020 		for (i = 0; i < qty; i++) {
2021 			if ((resinuse & (1 << i)) == 0) {
2022 				if (resmap != NULL)
2023 					resmap[restype] |= (1 << i);
2024 				else
2025 					vortex->dma_adb[i].resources[restype] |= (1 << i);
2026 				/*
2027 				pr_debug(
2028 				       "vortex: ResManager: type %d out %d\n",
2029 				       restype, i);
2030 				*/
2031 				return i;
2032 			}
2033 		}
2034 	} else {
2035 		if (resmap == NULL)
2036 			return -EINVAL;
2037 		/* Checkin first resource of type restype. */
2038 		for (i = 0; i < qty; i++) {
2039 			if (resmap[restype] & (1 << i)) {
2040 				resmap[restype] &= ~(1 << i);
2041 				/*
2042 				pr_debug(
2043 				       "vortex: ResManager: type %d in %d\n",
2044 				       restype, i);
2045 				*/
2046 				return i;
2047 			}
2048 		}
2049 	}
2050 	dev_err(vortex->card->dev,
2051 		"FATAL: ResManager: resource type %d exhausted.\n",
2052 		restype);
2053 	return -ENOMEM;
2054 }
2055 
2056 /* Default Connections  */
2057 
2058 static void vortex_connect_default(vortex_t * vortex, int en)
2059 {
2060 	// Connect AC97 codec.
2061 	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2062 				  VORTEX_RESOURCE_MIXOUT);
2063 	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2064 				  VORTEX_RESOURCE_MIXOUT);
2065 	if (VORTEX_IS_QUAD(vortex)) {
2066 		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2067 					  VORTEX_RESOURCE_MIXOUT);
2068 		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2069 					  VORTEX_RESOURCE_MIXOUT);
2070 	}
2071 	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2072 
2073 	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2074 				  VORTEX_RESOURCE_MIXIN);
2075 	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2076 				  VORTEX_RESOURCE_MIXIN);
2077 	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2078 
2079 	// Connect SPDIF
2080 #ifndef CHIP_AU8820
2081 	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2082 				  VORTEX_RESOURCE_MIXOUT);
2083 	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2084 				  VORTEX_RESOURCE_MIXOUT);
2085 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2086 				  ADB_SPDIFOUT(0));
2087 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2088 				  ADB_SPDIFOUT(1));
2089 #endif
2090 	// Connect WT
2091 #ifndef CHIP_AU8810
2092 	vortex_wt_connect(vortex, en);
2093 #endif
2094 	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2095 #ifndef CHIP_AU8820
2096 	vortex_Vort3D_connect(vortex, en);
2097 #endif
2098 	// Connect I2S
2099 
2100 	// Connect DSP interface for SQ3500 turbo (not here i think...)
2101 
2102 	// Connect AC98 modem codec
2103 
2104 }
2105 
2106 /*
2107   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2108   are deallocated.
2109   dma: DMA engine routes to be deallocated when dma >= 0.
2110   nr_ch: Number of channels to be de/allocated.
2111   dir: direction of stream. Uses same values as substream->stream.
2112   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2113   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2114 */
2115 static int
2116 vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
2117 			int type, int subdev)
2118 {
2119 	stream_t *stream;
2120 	int i, en;
2121 	struct pcm_vol *p;
2122 
2123 	if (dma >= 0) {
2124 		en = 0;
2125 		vortex_adb_checkinout(vortex,
2126 				      vortex->dma_adb[dma].resources, en,
2127 				      VORTEX_RESOURCE_DMA);
2128 	} else {
2129 		en = 1;
2130 		if ((dma =
2131 		     vortex_adb_checkinout(vortex, NULL, en,
2132 					   VORTEX_RESOURCE_DMA)) < 0)
2133 			return -EBUSY;
2134 	}
2135 
2136 	stream = &vortex->dma_adb[dma];
2137 	stream->dma = dma;
2138 	stream->dir = dir;
2139 	stream->type = type;
2140 
2141 	/* PLAYBACK ROUTES. */
2142 	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2143 		int src[4], mix[4], ch_top;
2144 #ifndef CHIP_AU8820
2145 		int a3d = 0;
2146 #endif
2147 		/* Get SRC and MIXER hardware resources. */
2148 		if (stream->type != VORTEX_PCM_SPDIF) {
2149 			for (i = 0; i < nr_ch; i++) {
2150 				if ((src[i] = vortex_adb_checkinout(vortex,
2151 							   stream->resources, en,
2152 							   VORTEX_RESOURCE_SRC)) < 0) {
2153 					memset(stream->resources, 0,
2154 					       sizeof(stream->resources));
2155 					return -EBUSY;
2156 				}
2157 				if (stream->type != VORTEX_PCM_A3D) {
2158 					if ((mix[i] = vortex_adb_checkinout(vortex,
2159 								   stream->resources,
2160 								   en,
2161 								   VORTEX_RESOURCE_MIXIN)) < 0) {
2162 						memset(stream->resources,
2163 						       0,
2164 						       sizeof(stream->resources));
2165 						return -EBUSY;
2166 					}
2167 				}
2168 			}
2169 		}
2170 #ifndef CHIP_AU8820
2171 		if (stream->type == VORTEX_PCM_A3D) {
2172 			if ((a3d =
2173 			     vortex_adb_checkinout(vortex,
2174 						   stream->resources, en,
2175 						   VORTEX_RESOURCE_A3D)) < 0) {
2176 				memset(stream->resources, 0,
2177 				       sizeof(stream->resources));
2178 				dev_err(vortex->card->dev,
2179 					"out of A3D sources. Sorry\n");
2180 				return -EBUSY;
2181 			}
2182 			/* (De)Initialize A3D hardware source. */
2183 			vortex_Vort3D_InitializeSource(&vortex->a3d[a3d], en,
2184 						       vortex);
2185 		}
2186 		/* Make SPDIF out exclusive to "spdif" device when in use. */
2187 		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2188 			vortex_route(vortex, 0, 0x14,
2189 				     ADB_MIXOUT(vortex->mixspdif[0]),
2190 				     ADB_SPDIFOUT(0));
2191 			vortex_route(vortex, 0, 0x14,
2192 				     ADB_MIXOUT(vortex->mixspdif[1]),
2193 				     ADB_SPDIFOUT(1));
2194 		}
2195 #endif
2196 		/* Make playback routes. */
2197 		for (i = 0; i < nr_ch; i++) {
2198 			if (stream->type == VORTEX_PCM_ADB) {
2199 				vortex_connection_adbdma_src(vortex, en,
2200 							     src[nr_ch - 1],
2201 							     dma,
2202 							     src[i]);
2203 				vortex_connection_src_mixin(vortex, en,
2204 							    0x11, src[i],
2205 							    mix[i]);
2206 				vortex_connection_mixin_mix(vortex, en,
2207 							    mix[i],
2208 							    MIX_PLAYB(i), 0);
2209 #ifndef CHIP_AU8820
2210 				vortex_connection_mixin_mix(vortex, en,
2211 							    mix[i],
2212 							    MIX_SPDIF(i % 2), 0);
2213 				vortex_mix_setinputvolumebyte(vortex,
2214 							      MIX_SPDIF(i % 2),
2215 							      mix[i],
2216 							      MIX_DEFIGAIN);
2217 #endif
2218 			}
2219 #ifndef CHIP_AU8820
2220 			if (stream->type == VORTEX_PCM_A3D) {
2221 				vortex_connection_adbdma_src(vortex, en,
2222 							     src[nr_ch - 1],
2223 								 dma,
2224 							     src[i]);
2225 				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2226 				/* XTalk test. */
2227 				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2228 				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2229 			}
2230 			if (stream->type == VORTEX_PCM_SPDIF)
2231 				vortex_route(vortex, en, 0x14,
2232 					     ADB_DMA(stream->dma),
2233 					     ADB_SPDIFOUT(i));
2234 #endif
2235 		}
2236 		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2237 			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2238 			for (i = nr_ch; i < ch_top; i++) {
2239 				vortex_connection_mixin_mix(vortex, en,
2240 							    mix[i % nr_ch],
2241 							    MIX_PLAYB(i), 0);
2242 #ifndef CHIP_AU8820
2243 				vortex_connection_mixin_mix(vortex, en,
2244 							    mix[i % nr_ch],
2245 							    MIX_SPDIF(i % 2),
2246 								0);
2247 				vortex_mix_setinputvolumebyte(vortex,
2248 							      MIX_SPDIF(i % 2),
2249 							      mix[i % nr_ch],
2250 							      MIX_DEFIGAIN);
2251 #endif
2252 			}
2253 			if (stream->type == VORTEX_PCM_ADB && en) {
2254 				p = &vortex->pcm_vol[subdev];
2255 				p->dma = dma;
2256 				for (i = 0; i < nr_ch; i++)
2257 					p->mixin[i] = mix[i];
2258 				for (i = 0; i < ch_top; i++)
2259 					p->vol[i] = 0;
2260 			}
2261 		}
2262 #ifndef CHIP_AU8820
2263 		else {
2264 			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2265 				vortex_route(vortex, en, 0x14,
2266 					     ADB_DMA(stream->dma),
2267 					     ADB_SPDIFOUT(1));
2268 		}
2269 		/* Reconnect SPDIF out when "spdif" device is down. */
2270 		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2271 			vortex_route(vortex, 1, 0x14,
2272 				     ADB_MIXOUT(vortex->mixspdif[0]),
2273 				     ADB_SPDIFOUT(0));
2274 			vortex_route(vortex, 1, 0x14,
2275 				     ADB_MIXOUT(vortex->mixspdif[1]),
2276 				     ADB_SPDIFOUT(1));
2277 		}
2278 #endif
2279 	/* CAPTURE ROUTES. */
2280 	} else {
2281 		int src[2], mix[2];
2282 
2283 		/* Get SRC and MIXER hardware resources. */
2284 		for (i = 0; i < nr_ch; i++) {
2285 			if ((mix[i] =
2286 			     vortex_adb_checkinout(vortex,
2287 						   stream->resources, en,
2288 						   VORTEX_RESOURCE_MIXOUT))
2289 			    < 0) {
2290 				memset(stream->resources, 0,
2291 				       sizeof(stream->resources));
2292 				return -EBUSY;
2293 			}
2294 			if ((src[i] =
2295 			     vortex_adb_checkinout(vortex,
2296 						   stream->resources, en,
2297 						   VORTEX_RESOURCE_SRC)) < 0) {
2298 				memset(stream->resources, 0,
2299 				       sizeof(stream->resources));
2300 				return -EBUSY;
2301 			}
2302 		}
2303 
2304 		/* Make capture routes. */
2305 		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2306 		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2307 		if (nr_ch == 1) {
2308 			vortex_connection_mixin_mix(vortex, en,
2309 						    MIX_CAPT(1), mix[0], 0);
2310 			vortex_connection_src_adbdma(vortex, en,
2311 						     src[0],
2312 						     src[0], dma);
2313 		} else {
2314 			vortex_connection_mixin_mix(vortex, en,
2315 						    MIX_CAPT(1), mix[1], 0);
2316 			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2317 						  src[1]);
2318 			vortex_connection_src_src_adbdma(vortex, en,
2319 							 src[1], src[0],
2320 							 src[1], dma);
2321 		}
2322 	}
2323 	vortex->dma_adb[dma].nr_ch = nr_ch;
2324 
2325 #if 0
2326 	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2327 	if (nr_ch < 4) {
2328 		/* Copy stereo to rear channel (surround) */
2329 		snd_ac97_write_cache(vortex->codec,
2330 				     AC97_SIGMATEL_DAC2INVERT,
2331 				     snd_ac97_read(vortex->codec,
2332 						   AC97_SIGMATEL_DAC2INVERT)
2333 				     | 4);
2334 	} else {
2335 		/* Allow separate front and rear channels. */
2336 		snd_ac97_write_cache(vortex->codec,
2337 				     AC97_SIGMATEL_DAC2INVERT,
2338 				     snd_ac97_read(vortex->codec,
2339 						   AC97_SIGMATEL_DAC2INVERT)
2340 				     & ~((u32)
2341 					 4));
2342 	}
2343 #endif
2344 	return dma;
2345 }
2346 
2347 /*
2348  Set the SampleRate of the SRC's attached to the given DMA engine.
2349  */
2350 static void
2351 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2352 {
2353 	stream_t *stream = &(vortex->dma_adb[adbdma]);
2354 	int i, cvrt;
2355 
2356 	/* dir=1:play ; dir=0:rec */
2357 	if (dir)
2358 		cvrt = SRC_RATIO(rate, 48000);
2359 	else
2360 		cvrt = SRC_RATIO(48000, rate);
2361 
2362 	/* Setup SRC's */
2363 	for (i = 0; i < NR_SRC; i++) {
2364 		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2365 			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2366 	}
2367 }
2368 
2369 // Timer and ISR functions.
2370 
2371 static void vortex_settimer(vortex_t * vortex, int period)
2372 {
2373 	//set the timer period to <period> 48000ths of a second.
2374 	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2375 }
2376 
2377 #if 0
2378 static void vortex_enable_timer_int(vortex_t * card)
2379 {
2380 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2381 		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2382 }
2383 
2384 static void vortex_disable_timer_int(vortex_t * card)
2385 {
2386 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2387 		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2388 }
2389 
2390 #endif
2391 static void vortex_enable_int(vortex_t * card)
2392 {
2393 	// CAsp4ISR__EnableVortexInt_void_
2394 	hwwrite(card->mmio, VORTEX_CTRL,
2395 		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2396 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2397 		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2398 }
2399 
2400 static void vortex_disable_int(vortex_t * card)
2401 {
2402 	hwwrite(card->mmio, VORTEX_CTRL,
2403 		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2404 }
2405 
2406 static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2407 {
2408 	vortex_t *vortex = dev_id;
2409 	int i, handled;
2410 	u32 source;
2411 
2412 	//check if the interrupt is ours.
2413 	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2414 		return IRQ_NONE;
2415 
2416 	// This is the Interrupt Enable flag we set before (consistency check).
2417 	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2418 		return IRQ_NONE;
2419 
2420 	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2421 	// Reset IRQ flags.
2422 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2423 	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2424 	// Is at least one IRQ flag set?
2425 	if (source == 0) {
2426 		dev_err(vortex->card->dev, "missing irq source\n");
2427 		return IRQ_NONE;
2428 	}
2429 
2430 	handled = 0;
2431 	// Attend every interrupt source.
2432 	if (unlikely(source & IRQ_ERR_MASK)) {
2433 		if (source & IRQ_FATAL) {
2434 			dev_err(vortex->card->dev, "IRQ fatal error\n");
2435 		}
2436 		if (source & IRQ_PARITY) {
2437 			dev_err(vortex->card->dev, "IRQ parity error\n");
2438 		}
2439 		if (source & IRQ_REG) {
2440 			dev_err(vortex->card->dev, "IRQ reg error\n");
2441 		}
2442 		if (source & IRQ_FIFO) {
2443 			dev_err(vortex->card->dev, "IRQ fifo error\n");
2444 		}
2445 		if (source & IRQ_DMA) {
2446 			dev_err(vortex->card->dev, "IRQ dma error\n");
2447 		}
2448 		handled = 1;
2449 	}
2450 	if (source & IRQ_PCMOUT) {
2451 		/* ALSA period acknowledge. */
2452 		spin_lock(&vortex->lock);
2453 		for (i = 0; i < NR_ADB; i++) {
2454 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2455 				if (!vortex_adbdma_bufshift(vortex, i))
2456 					continue;
2457 				spin_unlock(&vortex->lock);
2458 				snd_pcm_period_elapsed(vortex->dma_adb[i].
2459 						       substream);
2460 				spin_lock(&vortex->lock);
2461 			}
2462 		}
2463 #ifndef CHIP_AU8810
2464 		for (i = 0; i < NR_WT; i++) {
2465 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2466 				/* FIXME: we ignore the return value from
2467 				 * vortex_wtdma_bufshift() below as the delta
2468 				 * calculation seems not working for wavetable
2469 				 * by some reason
2470 				 */
2471 				vortex_wtdma_bufshift(vortex, i);
2472 				spin_unlock(&vortex->lock);
2473 				snd_pcm_period_elapsed(vortex->dma_wt[i].
2474 						       substream);
2475 				spin_lock(&vortex->lock);
2476 			}
2477 		}
2478 #endif
2479 		spin_unlock(&vortex->lock);
2480 		handled = 1;
2481 	}
2482 	//Acknowledge the Timer interrupt
2483 	if (source & IRQ_TIMER) {
2484 		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2485 		handled = 1;
2486 	}
2487 	if ((source & IRQ_MIDI) && vortex->rmidi) {
2488 		snd_mpu401_uart_interrupt(vortex->irq,
2489 					  vortex->rmidi->private_data);
2490 		handled = 1;
2491 	}
2492 
2493 	if (!handled) {
2494 		dev_err(vortex->card->dev, "unknown irq source %x\n", source);
2495 	}
2496 	return IRQ_RETVAL(handled);
2497 }
2498 
2499 /* Codec */
2500 
2501 #define POLL_COUNT 1000
2502 static void vortex_codec_init(vortex_t * vortex)
2503 {
2504 	int i;
2505 
2506 	for (i = 0; i < 32; i++) {
2507 		/* the windows driver writes -i, so we write -i */
2508 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2509 		msleep(2);
2510 	}
2511 	if (0) {
2512 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2513 		msleep(1);
2514 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2515 		msleep(1);
2516 	} else {
2517 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2518 		msleep(2);
2519 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2520 		msleep(2);
2521 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2522 		msleep(2);
2523 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2524 		msleep(2);
2525 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2526 		msleep(2);
2527 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2528 	}
2529 	for (i = 0; i < 32; i++) {
2530 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2531 		msleep(5);
2532 	}
2533 	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2534 	msleep(1);
2535 	/* Enable codec channels 0 and 1. */
2536 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2537 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2538 }
2539 
2540 static void
2541 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2542 {
2543 
2544 	vortex_t *card = (vortex_t *) codec->private_data;
2545 	unsigned int lifeboat = 0;
2546 
2547 	/* wait for transactions to clear */
2548 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2549 		udelay(100);
2550 		if (lifeboat++ > POLL_COUNT) {
2551 			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2552 			return;
2553 		}
2554 	}
2555 	/* write register */
2556 	hwwrite(card->mmio, VORTEX_CODEC_IO,
2557 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2558 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2559 		VORTEX_CODEC_WRITE |
2560 		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2561 
2562 	/* Flush Caches. */
2563 	hwread(card->mmio, VORTEX_CODEC_IO);
2564 }
2565 
2566 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2567 {
2568 
2569 	vortex_t *card = (vortex_t *) codec->private_data;
2570 	u32 read_addr, data;
2571 	unsigned lifeboat = 0;
2572 
2573 	/* wait for transactions to clear */
2574 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2575 		udelay(100);
2576 		if (lifeboat++ > POLL_COUNT) {
2577 			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2578 			return 0xffff;
2579 		}
2580 	}
2581 	/* set up read address */
2582 	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2583 		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2584 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2585 
2586 	/* wait for address */
2587 	do {
2588 		udelay(100);
2589 		data = hwread(card->mmio, VORTEX_CODEC_IO);
2590 		if (lifeboat++ > POLL_COUNT) {
2591 			dev_err(card->card->dev,
2592 				"ac97 address never arrived\n");
2593 			return 0xffff;
2594 		}
2595 	} while ((data & VORTEX_CODEC_ADDMASK) !=
2596 		 (addr << VORTEX_CODEC_ADDSHIFT));
2597 
2598 	/* return data. */
2599 	return (u16) (data & VORTEX_CODEC_DATMASK);
2600 }
2601 
2602 /* SPDIF support  */
2603 
2604 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2605 {
2606 	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2607 
2608 	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2609 	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2610 		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2611 	//for (i=0x291D4; i<0x29200; i+=4)
2612 	for (i = 0; i < 11; i++)
2613 		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2614 	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2615 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2616 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2617 
2618 	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2619 	if (this_04 && this_08) {
2620 		int edi;
2621 
2622 		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2623 		if (i > 0x800) {
2624 			if (i < 0x1ffff)
2625 				edi = (i >> 1);
2626 			else
2627 				edi = 0x1ffff;
2628 		} else {
2629 			i = edi = 0x800;
2630 		}
2631 		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2632 		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2633 					this_0c, 1, 0, edi, 1);
2634 		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2635 					this_0c, 1, 0, edi, 1);
2636 	}
2637 
2638 	i = spdif_sr;
2639 	spdif_sr |= 0x8c;
2640 	switch (i) {
2641 	case 32000:
2642 		this_38 &= 0xFFFFFFFE;
2643 		this_38 &= 0xFFFFFFFD;
2644 		this_38 &= 0xF3FFFFFF;
2645 		this_38 |= 0x03000000;	/* set 32khz samplerate */
2646 		this_38 &= 0xFFFFFF3F;
2647 		spdif_sr &= 0xFFFFFFFD;
2648 		spdif_sr |= 1;
2649 		break;
2650 	case 44100:
2651 		this_38 &= 0xFFFFFFFE;
2652 		this_38 &= 0xFFFFFFFD;
2653 		this_38 &= 0xF0FFFFFF;
2654 		this_38 |= 0x03000000;
2655 		this_38 &= 0xFFFFFF3F;
2656 		spdif_sr &= 0xFFFFFFFC;
2657 		break;
2658 	case 48000:
2659 		if (spdif_mode == 1) {
2660 			this_38 &= 0xFFFFFFFE;
2661 			this_38 &= 0xFFFFFFFD;
2662 			this_38 &= 0xF2FFFFFF;
2663 			this_38 |= 0x02000000;	/* set 48khz samplerate */
2664 			this_38 &= 0xFFFFFF3F;
2665 		} else {
2666 			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2667 			this_38 |= 0x00000003;
2668 			this_38 &= 0xFFFFFFBF;
2669 			this_38 |= 0x80;
2670 		}
2671 		spdif_sr |= 2;
2672 		spdif_sr &= 0xFFFFFFFE;
2673 		break;
2674 
2675 	}
2676 	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2677 	   registers. seems to be for the standard IEC/SPDIF initialization
2678 	   stuff */
2679 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2680 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2681 	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2682 }
2683 
2684 /* Initialization */
2685 
2686 static int vortex_core_init(vortex_t *vortex)
2687 {
2688 
2689 	dev_info(vortex->card->dev, "init started\n");
2690 	/* Hardware Init. */
2691 	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2692 	msleep(5);
2693 	hwwrite(vortex->mmio, VORTEX_CTRL,
2694 		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2695 	msleep(5);
2696 	/* Reset IRQ flags */
2697 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2698 	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2699 
2700 	vortex_codec_init(vortex);
2701 
2702 #ifdef CHIP_AU8830
2703 	hwwrite(vortex->mmio, VORTEX_CTRL,
2704 		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2705 #endif
2706 
2707 	/* Init audio engine. */
2708 	vortex_adbdma_init(vortex);
2709 	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2710 	vortex_adb_init(vortex);
2711 	/* Init processing blocks. */
2712 	vortex_fifo_init(vortex);
2713 	vortex_mixer_init(vortex);
2714 	vortex_srcblock_init(vortex);
2715 #ifndef CHIP_AU8820
2716 	vortex_eq_init(vortex);
2717 	vortex_spdif_init(vortex, 48000, 1);
2718 	vortex_Vort3D_enable(vortex);
2719 #endif
2720 #ifndef CHIP_AU8810
2721 	vortex_wt_init(vortex);
2722 #endif
2723 	// Moved to au88x0.c
2724 	//vortex_connect_default(vortex, 1);
2725 
2726 	vortex_settimer(vortex, 0x90);
2727 	// Enable Interrupts.
2728 	// vortex_enable_int() must be first !!
2729 	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2730 	// vortex_enable_int(vortex);
2731 	//vortex_enable_timer_int(vortex);
2732 	//vortex_disable_timer_int(vortex);
2733 
2734 	dev_info(vortex->card->dev, "init.... done.\n");
2735 	spin_lock_init(&vortex->lock);
2736 
2737 	return 0;
2738 }
2739 
2740 static int vortex_core_shutdown(vortex_t * vortex)
2741 {
2742 
2743 	dev_info(vortex->card->dev, "shutdown started\n");
2744 #ifndef CHIP_AU8820
2745 	vortex_eq_free(vortex);
2746 	vortex_Vort3D_disable(vortex);
2747 #endif
2748 	//vortex_disable_timer_int(vortex);
2749 	vortex_disable_int(vortex);
2750 	vortex_connect_default(vortex, 0);
2751 	/* Reset all DMA fifos. */
2752 	vortex_fifo_init(vortex);
2753 	/* Erase all audio routes. */
2754 	vortex_adb_init(vortex);
2755 
2756 	/* Disable MPU401 */
2757 	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2758 	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2759 
2760 	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2761 	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2762 	msleep(5);
2763 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2764 
2765 	dev_info(vortex->card->dev, "shutdown.... done.\n");
2766 	return 0;
2767 }
2768 
2769 /* Alsa support. */
2770 
2771 static int vortex_alsafmt_aspfmt(int alsafmt, vortex_t *v)
2772 {
2773 	int fmt;
2774 
2775 	switch (alsafmt) {
2776 	case SNDRV_PCM_FORMAT_U8:
2777 		fmt = 0x1;
2778 		break;
2779 	case SNDRV_PCM_FORMAT_MU_LAW:
2780 		fmt = 0x2;
2781 		break;
2782 	case SNDRV_PCM_FORMAT_A_LAW:
2783 		fmt = 0x3;
2784 		break;
2785 	case SNDRV_PCM_FORMAT_SPECIAL:
2786 		fmt = 0x4;	/* guess. */
2787 		break;
2788 	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2789 		fmt = 0x5;	/* guess. */
2790 		break;
2791 	case SNDRV_PCM_FORMAT_S16_LE:
2792 		fmt = 0x8;
2793 		break;
2794 	case SNDRV_PCM_FORMAT_S16_BE:
2795 		fmt = 0x9;	/* check this... */
2796 		break;
2797 	default:
2798 		fmt = 0x8;
2799 		dev_err(v->card->dev,
2800 			"format unsupported %d\n", alsafmt);
2801 		break;
2802 	}
2803 	return fmt;
2804 }
2805 
2806 /* Some not yet useful translations. */
2807 #if 0
2808 typedef enum {
2809 	ASPFMTLINEAR16 = 0,	/* 0x8 */
2810 	ASPFMTLINEAR8,		/* 0x1 */
2811 	ASPFMTULAW,		/* 0x2 */
2812 	ASPFMTALAW,		/* 0x3 */
2813 	ASPFMTSPORT,		/* ? */
2814 	ASPFMTSPDIF,		/* ? */
2815 } ASPENCODING;
2816 
2817 static int
2818 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2819 {
2820 	int a, this_194;
2821 
2822 	if ((bits != 8) && (bits != 16))
2823 		return -1;
2824 
2825 	switch (encod) {
2826 	case 0:
2827 		if (bits == 0x10)
2828 			a = 8;	// 16 bit
2829 		break;
2830 	case 1:
2831 		if (bits == 8)
2832 			a = 1;	// 8 bit
2833 		break;
2834 	case 2:
2835 		a = 2;		// U_LAW
2836 		break;
2837 	case 3:
2838 		a = 3;		// A_LAW
2839 		break;
2840 	}
2841 	switch (nch) {
2842 	case 1:
2843 		this_194 = 0;
2844 		break;
2845 	case 2:
2846 		this_194 = 1;
2847 		break;
2848 	case 4:
2849 		this_194 = 1;
2850 		break;
2851 	case 6:
2852 		this_194 = 1;
2853 		break;
2854 	}
2855 	return (a);
2856 }
2857 
2858 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2859 {
2860 	short int d, this_148;
2861 
2862 	d = ((bits >> 3) * nch);
2863 	this_148 = 0xbb80 / d;
2864 }
2865 #endif
2866