xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision eea9507a)
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 			pr_err(
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 		pr_err( "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 					pr_err(
328 					       "vortex: 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 			pr_err( "Vortex: 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 			pr_err(
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 		pr_err( "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 					pr_warn
728 					    ("vortex: 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 			pr_err(
823 			       "Vortex: 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 			pr_err( "Vortex: vortex_fifo_setwtctrl fail\n");
919 			break;
920 		}
921 	}
922 	while (temp & FIFO_RDONLY);
923 
924 	if (valid) {
925 		if ((temp & FIFO_VALID) == 0) {
926 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);	// this_4
927 #ifdef CHIP_AU8820
928 			temp = (this_4 & 0x1f) << 0xb;
929 #else
930 			temp = (this_4 & 0x3f) << 0xc;
931 #endif
932 			temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
933 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
934 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
935 			temp |= FIFO_U1;
936 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
937 #ifdef CHIP_AU8820
938 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
939 #endif
940 #ifdef CHIP_AU8830
941 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
942 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
943 #endif
944 #ifdef CHIP_AU8810
945 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
946 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
947 #endif
948 		}
949 	} else {
950 		if (temp & FIFO_VALID) {
951 #ifdef CHIP_AU8820
952 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
953 #endif
954 #ifdef CHIP_AU8830
955 			temp =
956 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
957 #endif
958 #ifdef CHIP_AU8810
959 			temp =
960 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
961 #endif
962 		} else
963 			/*if (this_8[fifo]) */
964 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
965 	}
966 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
967 	hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
968 
969 /*
970     do {
971 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
972 		if (lifeboat++ > 0xbb8) {
973 			pr_err( "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
974 			break;
975 		}
976     } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
977 
978 
979 	if (valid) {
980 		if (temp & FIFO_VALID) {
981 			temp = 0x40000;
982 			//temp |= 0x08000000;
983 			//temp |= 0x10000000;
984 			//temp |= 0x04000000;
985 			//temp |= 0x00400000;
986 			temp |= 0x1c400000;
987 			temp &= 0xFFFFFFF3;
988 			temp &= 0xFFFFFFEF;
989 			temp |= (valid & 1) << 4;
990 			hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
991 			return;
992 		} else {
993 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
994 			return;
995 		}
996 	} else {
997 		temp &= 0xffffffef;
998 		temp |= 0x08000000;
999 		temp |= 0x10000000;
1000 		temp |= 0x04000000;
1001 		temp |= 0x00400000;
1002 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1003 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
1004 		//((temp >> 6) & 0x3f)
1005 
1006 		priority = 0;
1007 		if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
1008 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
1009 		valid = 0xfb;
1010 		temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1011 		temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1012 		temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1013 		temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1014 		temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1015 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1016 	}
1017 
1018 	*/
1019 
1020 	/*
1021 	   temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1022 	   temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1023 	   temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1024 	   temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1025 	   temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1026 	   #ifdef FIFO_BITS
1027 	   temp = temp | FIFO_BITS | 40000;
1028 	   #endif
1029 	   // 0x1c440010, 0x1c400000
1030 	   hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1031 	 */
1032 }
1033 
1034 #endif
1035 static void vortex_fifo_init(vortex_t * vortex)
1036 {
1037 	int x;
1038 	u32 addr;
1039 
1040 	/* ADB DMA channels fifos. */
1041 	addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1042 	for (x = NR_ADB - 1; x >= 0; x--) {
1043 		hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1044 		if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1045 			pr_err( "bad adb fifo reset!");
1046 		vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1047 		addr -= 4;
1048 	}
1049 
1050 #ifndef CHIP_AU8810
1051 	/* WT DMA channels fifos. */
1052 	addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1053 	for (x = NR_WT - 1; x >= 0; x--) {
1054 		hwwrite(vortex->mmio, addr, FIFO_U0);
1055 		if (hwread(vortex->mmio, addr) != FIFO_U0)
1056 			pr_err(
1057 			       "bad wt fifo reset (0x%08x, 0x%08x)!\n",
1058 			       addr, hwread(vortex->mmio, addr));
1059 		vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1060 		addr -= 4;
1061 	}
1062 #endif
1063 	/* trigger... */
1064 #ifdef CHIP_AU8820
1065 	hwwrite(vortex->mmio, 0xf8c0, 0xd03);	//0x0843 0xd6b
1066 #else
1067 #ifdef CHIP_AU8830
1068 	hwwrite(vortex->mmio, 0x17000, 0x61);	/* wt a */
1069 	hwwrite(vortex->mmio, 0x17004, 0x61);	/* wt b */
1070 #endif
1071 	hwwrite(vortex->mmio, 0x17008, 0x61);	/* adb */
1072 #endif
1073 }
1074 
1075 /* ADBDMA */
1076 
1077 static void vortex_adbdma_init(vortex_t * vortex)
1078 {
1079 }
1080 
1081 static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1082 {
1083 	stream_t *dma = &vortex->dma_adb[adbdma];
1084 
1085 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1086 		dma->dma_ctrl);
1087 }
1088 
1089 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1090 {
1091 	stream_t *dma = &vortex->dma_adb[adbdma];
1092 	//hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1093 	hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1094 		sb << ((0xf - (adbdma & 0xf)) * 2));
1095 	dma->period_real = dma->period_virt = sb;
1096 }
1097 
1098 static void
1099 vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1100 			 int psize, int count)
1101 {
1102 	stream_t *dma = &vortex->dma_adb[adbdma];
1103 
1104 	dma->period_bytes = psize;
1105 	dma->nr_periods = count;
1106 
1107 	dma->cfg0 = 0;
1108 	dma->cfg1 = 0;
1109 	switch (count) {
1110 		/* Four or more pages */
1111 	default:
1112 	case 4:
1113 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1114 		hwwrite(vortex->mmio,
1115 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1116 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1117 		/* 3 pages */
1118 	case 3:
1119 		dma->cfg0 |= 0x12000000;
1120 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1121 		hwwrite(vortex->mmio,
1122 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1123 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1124 		/* 2 pages */
1125 	case 2:
1126 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1127 		hwwrite(vortex->mmio,
1128 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1129 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1130 		/* 1 page */
1131 	case 1:
1132 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1133 		hwwrite(vortex->mmio,
1134 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1135 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1136 		break;
1137 	}
1138 	/*
1139 	pr_debug( "vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n",
1140 	       dma->cfg0, dma->cfg1);
1141 	*/
1142 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1143 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1144 
1145 	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1146 	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1147 }
1148 
1149 static void
1150 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1151 		      int fmt, int stereo, u32 offset)
1152 {
1153 	stream_t *dma = &vortex->dma_adb[adbdma];
1154 
1155 	dma->dma_unknown = stereo;
1156 	dma->dma_ctrl =
1157 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1158 	/* Enable PCMOUT interrupts. */
1159 	dma->dma_ctrl =
1160 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1161 
1162 	dma->dma_ctrl =
1163 	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1164 	dma->dma_ctrl =
1165 	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1166 
1167 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1168 		dma->dma_ctrl);
1169 	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1170 }
1171 
1172 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1173 {
1174 	stream_t *dma = &vortex->dma_adb[adbdma];
1175 	int page, p, pp, delta, i;
1176 
1177 	page =
1178 	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1179 	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1180 	if (dma->nr_periods >= 4)
1181 		delta = (page - dma->period_real) & 3;
1182 	else {
1183 		delta = (page - dma->period_real);
1184 		if (delta < 0)
1185 			delta += dma->nr_periods;
1186 	}
1187 	if (delta == 0)
1188 		return 0;
1189 
1190 	/* refresh hw page table */
1191 	if (dma->nr_periods > 4) {
1192 		for (i = 0; i < delta; i++) {
1193 			/* p: audio buffer page index */
1194 			p = dma->period_virt + i + 4;
1195 			if (p >= dma->nr_periods)
1196 				p -= dma->nr_periods;
1197 			/* pp: hardware DMA page index. */
1198 			pp = dma->period_real + i;
1199 			if (pp >= 4)
1200 				pp -= 4;
1201 			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1202 			hwwrite(vortex->mmio,
1203 				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1204 				snd_pcm_sgbuf_get_addr(dma->substream,
1205 				dma->period_bytes * p));
1206 			/* Force write thru cache. */
1207 			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1208 			       (((adbdma << 2) + pp) << 2));
1209 		}
1210 	}
1211 	dma->period_virt += delta;
1212 	dma->period_real = page;
1213 	if (dma->period_virt >= dma->nr_periods)
1214 		dma->period_virt -= dma->nr_periods;
1215 	if (delta != 1)
1216 		pr_info( "vortex: %d virt=%d, real=%d, delta=%d\n",
1217 		       adbdma, dma->period_virt, dma->period_real, delta);
1218 
1219 	return delta;
1220 }
1221 
1222 
1223 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1224 	stream_t *dma = &vortex->dma_adb[adbdma];
1225 	int p, pp, i;
1226 
1227 	/* refresh hw page table */
1228 	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1229 		/* p: audio buffer page index */
1230 		p = dma->period_virt + i;
1231 		if (p >= dma->nr_periods)
1232 			p -= dma->nr_periods;
1233 		/* pp: hardware DMA page index. */
1234 		pp = dma->period_real + i;
1235 		if (dma->nr_periods < 4) {
1236 			if (pp >= dma->nr_periods)
1237 				pp -= dma->nr_periods;
1238 		}
1239 		else {
1240 			if (pp >= 4)
1241 				pp -= 4;
1242 		}
1243 		hwwrite(vortex->mmio,
1244 			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1245 			snd_pcm_sgbuf_get_addr(dma->substream,
1246 					       dma->period_bytes * p));
1247 		/* Force write thru cache. */
1248 		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1249 	}
1250 }
1251 
1252 static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1253 {
1254 	stream_t *dma = &vortex->dma_adb[adbdma];
1255 	int temp, page, delta;
1256 
1257 	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1258 	page = (temp & ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1259 	if (dma->nr_periods >= 4)
1260 		delta = (page - dma->period_real) & 3;
1261 	else {
1262 		delta = (page - dma->period_real);
1263 		if (delta < 0)
1264 			delta += dma->nr_periods;
1265 	}
1266 	return (dma->period_virt + delta) * dma->period_bytes
1267 		+ (temp & (dma->period_bytes - 1));
1268 }
1269 
1270 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1271 {
1272 	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1273 	stream_t *dma = &vortex->dma_adb[adbdma];
1274 
1275 	switch (dma->fifo_status) {
1276 	case FIFO_START:
1277 		vortex_fifo_setadbvalid(vortex, adbdma,
1278 					dma->fifo_enabled ? 1 : 0);
1279 		break;
1280 	case FIFO_STOP:
1281 		this_8 = 1;
1282 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1283 			dma->dma_ctrl);
1284 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1285 				       this_4, this_8,
1286 				       dma->fifo_enabled ? 1 : 0, 0);
1287 		break;
1288 	case FIFO_PAUSE:
1289 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1290 				       this_4, this_8,
1291 				       dma->fifo_enabled ? 1 : 0, 0);
1292 		break;
1293 	}
1294 	dma->fifo_status = FIFO_START;
1295 }
1296 
1297 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1298 {
1299 	stream_t *dma = &vortex->dma_adb[adbdma];
1300 
1301 	int this_8 = 1, this_4 = 0;
1302 	switch (dma->fifo_status) {
1303 	case FIFO_STOP:
1304 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1305 			dma->dma_ctrl);
1306 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1307 				       this_4, this_8,
1308 				       dma->fifo_enabled ? 1 : 0, 0);
1309 		break;
1310 	case FIFO_PAUSE:
1311 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1312 				       this_4, this_8,
1313 				       dma->fifo_enabled ? 1 : 0, 0);
1314 		break;
1315 	}
1316 	dma->fifo_status = FIFO_START;
1317 }
1318 
1319 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1320 {
1321 	stream_t *dma = &vortex->dma_adb[adbdma];
1322 
1323 	int this_8 = 0, this_4 = 0;
1324 	switch (dma->fifo_status) {
1325 	case FIFO_START:
1326 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1327 				       this_4, this_8, 0, 0);
1328 		break;
1329 	case FIFO_STOP:
1330 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1331 			dma->dma_ctrl);
1332 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1333 				       this_4, this_8, 0, 0);
1334 		break;
1335 	}
1336 	dma->fifo_status = FIFO_PAUSE;
1337 }
1338 
1339 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1340 {
1341 	stream_t *dma = &vortex->dma_adb[adbdma];
1342 
1343 	int this_4 = 0, this_8 = 0;
1344 	if (dma->fifo_status == FIFO_START)
1345 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1346 				       this_4, this_8, 0, 0);
1347 	else if (dma->fifo_status == FIFO_STOP)
1348 		return;
1349 	dma->fifo_status = FIFO_STOP;
1350 	dma->fifo_enabled = 0;
1351 }
1352 
1353 /* WTDMA */
1354 
1355 #ifndef CHIP_AU8810
1356 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1357 {
1358 	//int this_7c=dma_ctrl;
1359 	stream_t *dma = &vortex->dma_wt[wtdma];
1360 
1361 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1362 }
1363 
1364 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1365 {
1366 	stream_t *dma = &vortex->dma_wt[wtdma];
1367 	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1368 	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1369 		sb << ((0xf - (wtdma & 0xf)) * 2));
1370 	dma->period_real = dma->period_virt = sb;
1371 }
1372 
1373 static void
1374 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1375 			int psize, int count)
1376 {
1377 	stream_t *dma = &vortex->dma_wt[wtdma];
1378 
1379 	dma->period_bytes = psize;
1380 	dma->nr_periods = count;
1381 
1382 	dma->cfg0 = 0;
1383 	dma->cfg1 = 0;
1384 	switch (count) {
1385 		/* Four or more pages */
1386 	default:
1387 	case 4:
1388 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1389 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1390 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1391 		/* 3 pages */
1392 	case 3:
1393 		dma->cfg0 |= 0x12000000;
1394 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1395 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1396 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1397 		/* 2 pages */
1398 	case 2:
1399 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1400 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1401 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1402 		/* 1 page */
1403 	case 1:
1404 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1405 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1406 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1407 		break;
1408 	}
1409 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1410 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1411 
1412 	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1413 	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1414 }
1415 
1416 static void
1417 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1418 		     /*int e, */ u32 offset)
1419 {
1420 	stream_t *dma = &vortex->dma_wt[wtdma];
1421 
1422 	//dma->this_08 = e;
1423 	dma->dma_unknown = d;
1424 	dma->dma_ctrl = 0;
1425 	dma->dma_ctrl =
1426 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1427 	/* PCMOUT interrupt */
1428 	dma->dma_ctrl =
1429 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1430 	/* Always playback. */
1431 	dma->dma_ctrl |= (1 << DIR_SHIFT);
1432 	/* Audio Format */
1433 	dma->dma_ctrl =
1434 	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1435 	/* Write into hardware */
1436 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1437 }
1438 
1439 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1440 {
1441 	stream_t *dma = &vortex->dma_wt[wtdma];
1442 	int page, p, pp, delta, i;
1443 
1444 	page =
1445 	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
1446 	     WT_SUBBUF_MASK)
1447 	    >> WT_SUBBUF_SHIFT;
1448 	if (dma->nr_periods >= 4)
1449 		delta = (page - dma->period_real) & 3;
1450 	else {
1451 		delta = (page - dma->period_real);
1452 		if (delta < 0)
1453 			delta += dma->nr_periods;
1454 	}
1455 	if (delta == 0)
1456 		return 0;
1457 
1458 	/* refresh hw page table */
1459 	if (dma->nr_periods > 4) {
1460 		for (i = 0; i < delta; i++) {
1461 			/* p: audio buffer page index */
1462 			p = dma->period_virt + i + 4;
1463 			if (p >= dma->nr_periods)
1464 				p -= dma->nr_periods;
1465 			/* pp: hardware DMA page index. */
1466 			pp = dma->period_real + i;
1467 			if (pp >= 4)
1468 				pp -= 4;
1469 			hwwrite(vortex->mmio,
1470 				VORTEX_WTDMA_BUFBASE +
1471 				(((wtdma << 2) + pp) << 2),
1472 				snd_pcm_sgbuf_get_addr(dma->substream,
1473 						       dma->period_bytes * p));
1474 			/* Force write thru cache. */
1475 			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1476 			       (((wtdma << 2) + pp) << 2));
1477 		}
1478 	}
1479 	dma->period_virt += delta;
1480 	if (dma->period_virt >= dma->nr_periods)
1481 		dma->period_virt -= dma->nr_periods;
1482 	dma->period_real = page;
1483 
1484 	if (delta != 1)
1485 		pr_warn( "vortex: wt virt = %d, delta = %d\n",
1486 		       dma->period_virt, delta);
1487 
1488 	return delta;
1489 }
1490 
1491 #if 0
1492 static void
1493 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1494 {
1495 	int temp;
1496 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1497 	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1498 	*pos = temp & POS_MASK;
1499 }
1500 
1501 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1502 {
1503 	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1504 		 POS_SHIFT) & POS_MASK);
1505 }
1506 #endif
1507 static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1508 {
1509 	stream_t *dma = &vortex->dma_wt[wtdma];
1510 	int temp;
1511 
1512 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1513 	temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
1514 	return temp;
1515 }
1516 
1517 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1518 {
1519 	stream_t *dma = &vortex->dma_wt[wtdma];
1520 	int this_8 = 0, this_4 = 0;
1521 
1522 	switch (dma->fifo_status) {
1523 	case FIFO_START:
1524 		vortex_fifo_setwtvalid(vortex, wtdma,
1525 				       dma->fifo_enabled ? 1 : 0);
1526 		break;
1527 	case FIFO_STOP:
1528 		this_8 = 1;
1529 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1530 			dma->dma_ctrl);
1531 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1532 				      this_4, this_8,
1533 				      dma->fifo_enabled ? 1 : 0, 0);
1534 		break;
1535 	case FIFO_PAUSE:
1536 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1537 				      this_4, this_8,
1538 				      dma->fifo_enabled ? 1 : 0, 0);
1539 		break;
1540 	}
1541 	dma->fifo_status = FIFO_START;
1542 }
1543 
1544 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1545 {
1546 	stream_t *dma = &vortex->dma_wt[wtdma];
1547 
1548 	int this_8 = 0, this_4 = 0;
1549 	switch (dma->fifo_status) {
1550 	case FIFO_STOP:
1551 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1552 			dma->dma_ctrl);
1553 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1554 				      this_4, this_8,
1555 				      dma->fifo_enabled ? 1 : 0, 0);
1556 		break;
1557 	case FIFO_PAUSE:
1558 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1559 				      this_4, this_8,
1560 				      dma->fifo_enabled ? 1 : 0, 0);
1561 		break;
1562 	}
1563 	dma->fifo_status = FIFO_START;
1564 }
1565 
1566 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1567 {
1568 	stream_t *dma = &vortex->dma_wt[wtdma];
1569 
1570 	int this_8 = 0, this_4 = 0;
1571 	switch (dma->fifo_status) {
1572 	case FIFO_START:
1573 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1574 				      this_4, this_8, 0, 0);
1575 		break;
1576 	case FIFO_STOP:
1577 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1578 			dma->dma_ctrl);
1579 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1580 				      this_4, this_8, 0, 0);
1581 		break;
1582 	}
1583 	dma->fifo_status = FIFO_PAUSE;
1584 }
1585 
1586 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1587 {
1588 	stream_t *dma = &vortex->dma_wt[wtdma];
1589 
1590 	int this_4 = 0, this_8 = 0;
1591 	if (dma->fifo_status == FIFO_START)
1592 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1593 				      this_4, this_8, 0, 0);
1594 	else if (dma->fifo_status == FIFO_STOP)
1595 		return;
1596 	dma->fifo_status = FIFO_STOP;
1597 	dma->fifo_enabled = 0;
1598 }
1599 
1600 #endif
1601 /* ADB Routes */
1602 
1603 typedef int ADBRamLink;
1604 static void vortex_adb_init(vortex_t * vortex)
1605 {
1606 	int i;
1607 	/* it looks like we are writing more than we need to...
1608 	 * if we write what we are supposed to it breaks things... */
1609 	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1610 	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1611 		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1612 			hwread(vortex->mmio,
1613 			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1614 	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1615 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1616 			hwread(vortex->mmio,
1617 			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1618 	}
1619 }
1620 
1621 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1622 {
1623 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1624 		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1625 }
1626 
1627 static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1628 {
1629 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1630 		hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1631 }
1632 
1633 static void
1634 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1635 		     ADBRamLink * route, int rnum)
1636 {
1637 	int temp, prev, lifeboat = 0;
1638 
1639 	if ((rnum <= 0) || (route == NULL))
1640 		return;
1641 	/* Write last routes. */
1642 	rnum--;
1643 	hwwrite(vortex->mmio,
1644 		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1645 		ROUTE_MASK);
1646 	while (rnum > 0) {
1647 		hwwrite(vortex->mmio,
1648 			VORTEX_ADB_RTBASE +
1649 			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1650 		rnum--;
1651 	}
1652 	/* Write first route. */
1653 	temp =
1654 	    hwread(vortex->mmio,
1655 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1656 	if (temp == ADB_MASK) {
1657 		/* First entry on this channel. */
1658 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1659 			route[0]);
1660 		vortex_adb_en_sr(vortex, channel);
1661 		return;
1662 	}
1663 	/* Not first entry on this channel. Need to link. */
1664 	do {
1665 		prev = temp;
1666 		temp =
1667 		    hwread(vortex->mmio,
1668 			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1669 		if ((lifeboat++) > ADB_MASK) {
1670 			pr_err(
1671 			       "vortex_adb_addroutes: unending route! 0x%x\n",
1672 			       *route);
1673 			return;
1674 		}
1675 	}
1676 	while (temp != ADB_MASK);
1677 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1678 }
1679 
1680 static void
1681 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1682 		     ADBRamLink route0, ADBRamLink route1)
1683 {
1684 	int temp, lifeboat = 0, prev;
1685 
1686 	/* Find route. */
1687 	temp =
1688 	    hwread(vortex->mmio,
1689 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1690 	if (temp == (route0 & ADB_MASK)) {
1691 		temp =
1692 		    hwread(vortex->mmio,
1693 			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1694 		if ((temp & ADB_MASK) == ADB_MASK)
1695 			vortex_adb_dis_sr(vortex, channel);
1696 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1697 			temp);
1698 		return;
1699 	}
1700 	do {
1701 		prev = temp;
1702 		temp =
1703 		    hwread(vortex->mmio,
1704 			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1705 		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1706 			pr_err(
1707 			       "vortex_adb_delroutes: route not found! 0x%x\n",
1708 			       route0);
1709 			return;
1710 		}
1711 	}
1712 	while (temp != (route0 & ADB_MASK));
1713 	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1714 	if ((temp & ADB_MASK) == route1)
1715 		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1716 	/* Make bridge over deleted route. */
1717 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1718 }
1719 
1720 static void
1721 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1722 	     unsigned char source, unsigned char dest)
1723 {
1724 	ADBRamLink route;
1725 
1726 	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1727 	if (en) {
1728 		vortex_adb_addroutes(vortex, channel, &route, 1);
1729 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1730 		    && (source >= OFFSET_SRCOUT))
1731 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1732 					  channel);
1733 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1734 			 && (source >= OFFSET_MIXOUT))
1735 			vortex_mixer_addWTD(vortex,
1736 					    (source - OFFSET_MIXOUT), channel);
1737 	} else {
1738 		vortex_adb_delroutes(vortex, channel, route, route);
1739 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1740 		    && (source >= OFFSET_SRCOUT))
1741 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1742 					  channel);
1743 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1744 			 && (source >= OFFSET_MIXOUT))
1745 			vortex_mixer_delWTD(vortex,
1746 					    (source - OFFSET_MIXOUT), channel);
1747 	}
1748 }
1749 
1750 #if 0
1751 static void
1752 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1753 	      unsigned char source, unsigned char dest0, unsigned char dest1)
1754 {
1755 	ADBRamLink route[2];
1756 
1757 	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1758 	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1759 
1760 	if (en) {
1761 		vortex_adb_addroutes(vortex, channel, route, 2);
1762 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1763 		    && (source >= (OFFSET_SRCOUT)))
1764 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1765 					  channel);
1766 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1767 			 && (source >= (OFFSET_MIXOUT)))
1768 			vortex_mixer_addWTD(vortex,
1769 					    (source - OFFSET_MIXOUT), channel);
1770 	} else {
1771 		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1772 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1773 		    && (source >= (OFFSET_SRCOUT)))
1774 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1775 					  channel);
1776 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1777 			 && (source >= (OFFSET_MIXOUT)))
1778 			vortex_mixer_delWTD(vortex,
1779 					    (source - OFFSET_MIXOUT), channel);
1780 	}
1781 }
1782 
1783 #endif
1784 /* Route two sources to same target. Sources must be of same class !!! */
1785 static void
1786 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1787 		unsigned char source0, unsigned char source1,
1788 		unsigned char dest)
1789 {
1790 	ADBRamLink route[2];
1791 
1792 	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1793 	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1794 
1795 	if (dest < 0x10)
1796 		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1797 
1798 	if (en) {
1799 		vortex_adb_addroutes(vortex, ch, route, 2);
1800 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1801 		    && (source0 >= OFFSET_SRCOUT)) {
1802 			vortex_src_addWTD(vortex,
1803 					  (source0 - OFFSET_SRCOUT), ch);
1804 			vortex_src_addWTD(vortex,
1805 					  (source1 - OFFSET_SRCOUT), ch);
1806 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1807 			   && (source0 >= OFFSET_MIXOUT)) {
1808 			vortex_mixer_addWTD(vortex,
1809 					    (source0 - OFFSET_MIXOUT), ch);
1810 			vortex_mixer_addWTD(vortex,
1811 					    (source1 - OFFSET_MIXOUT), ch);
1812 		}
1813 	} else {
1814 		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1815 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1816 		    && (source0 >= OFFSET_SRCOUT)) {
1817 			vortex_src_delWTD(vortex,
1818 					  (source0 - OFFSET_SRCOUT), ch);
1819 			vortex_src_delWTD(vortex,
1820 					  (source1 - OFFSET_SRCOUT), ch);
1821 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1822 			   && (source0 >= OFFSET_MIXOUT)) {
1823 			vortex_mixer_delWTD(vortex,
1824 					    (source0 - OFFSET_MIXOUT), ch);
1825 			vortex_mixer_delWTD(vortex,
1826 					    (source1 - OFFSET_MIXOUT), ch);
1827 		}
1828 	}
1829 }
1830 
1831 /* Connection stuff */
1832 
1833 // Connect adbdma to src('s).
1834 static void
1835 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1836 			     unsigned char adbdma, unsigned char src)
1837 {
1838 	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1839 }
1840 
1841 // Connect SRC to mixin.
1842 static void
1843 vortex_connection_src_mixin(vortex_t * vortex, int en,
1844 			    unsigned char channel, unsigned char src,
1845 			    unsigned char mixin)
1846 {
1847 	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1848 }
1849 
1850 // Connect mixin with mix output.
1851 static void
1852 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1853 			    unsigned char mix, int a)
1854 {
1855 	if (en) {
1856 		vortex_mix_enableinput(vortex, mix, mixin);
1857 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1858 	} else
1859 		vortex_mix_disableinput(vortex, mix, mixin, a);
1860 }
1861 
1862 // Connect absolut address to mixin.
1863 static void
1864 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1865 			    unsigned char channel, unsigned char source,
1866 			    unsigned char mixin)
1867 {
1868 	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1869 }
1870 
1871 static void
1872 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1873 			     unsigned char src, unsigned char adbdma)
1874 {
1875 	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1876 }
1877 
1878 static void
1879 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1880 				 unsigned char ch, unsigned char src0,
1881 				 unsigned char src1, unsigned char adbdma)
1882 {
1883 
1884 	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1885 			ADB_DMA(adbdma));
1886 }
1887 
1888 // mix to absolut address.
1889 static void
1890 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1891 			  unsigned char mix, unsigned char dest)
1892 {
1893 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1894 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1895 }
1896 
1897 // mixer to src.
1898 static void
1899 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1900 			  unsigned char mix, unsigned char src)
1901 {
1902 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1903 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1904 }
1905 
1906 #if 0
1907 static void
1908 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1909 				 unsigned char channel,
1910 				 unsigned char adbdma, unsigned char src0,
1911 				 unsigned char src1)
1912 {
1913 	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1914 		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1915 }
1916 
1917 // Connect two mix to AdbDma.
1918 static void
1919 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1920 				 unsigned char ch, unsigned char mix0,
1921 				 unsigned char mix1, unsigned char adbdma)
1922 {
1923 
1924 	ADBRamLink routes[2];
1925 	routes[0] =
1926 	    (((mix0 +
1927 	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1928 	routes[1] =
1929 	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1930 								   0x20) &
1931 								  ADB_MASK);
1932 	if (en) {
1933 		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1934 		vortex_mixer_addWTD(vortex, mix0, ch);
1935 		vortex_mixer_addWTD(vortex, mix1, ch);
1936 	} else {
1937 		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1938 		vortex_mixer_delWTD(vortex, mix0, ch);
1939 		vortex_mixer_delWTD(vortex, mix1, ch);
1940 	}
1941 }
1942 #endif
1943 
1944 /* CODEC connect. */
1945 
1946 static void
1947 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1948 {
1949 #ifdef CHIP_AU8820
1950 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1951 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1952 #else
1953 #if 1
1954 	// Connect front channels through EQ.
1955 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1956 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1957 	/* Lower volume, since EQ has some gain. */
1958 	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1959 	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1960 	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1961 	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1962 
1963 	/* Check if reg 0x28 has SDAC bit set. */
1964 	if (VORTEX_IS_QUAD(vortex)) {
1965 		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1966 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1967 					  ADB_CODECOUT(0 + 4));
1968 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1969 					  ADB_CODECOUT(1 + 4));
1970 		/* pr_debug( "SDAC detected "); */
1971 	}
1972 #else
1973 	// Use plain direct output to codec.
1974 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1975 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1976 #endif
1977 #endif
1978 }
1979 
1980 static void
1981 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1982 			unsigned char mixin1)
1983 {
1984 	/*
1985 	   Enable: 0x1, 0x1
1986 	   Channel: 0x11, 0x11
1987 	   ADB Source address: 0x48, 0x49
1988 	   Destination Asp4Topology_0x9c,0x98
1989 	 */
1990 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1991 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1992 }
1993 
1994 // Higher level ADB audio path (de)allocator.
1995 
1996 /* Resource manager */
1997 static int resnum[VORTEX_RESOURCE_LAST] =
1998     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
1999 /*
2000  Checkout/Checkin resource of given type.
2001  resmap: resource map to be used. If NULL means that we want to allocate
2002  a DMA resource (root of all other resources of a dma channel).
2003  out: Mean checkout if != 0. Else mean Checkin resource.
2004  restype: Indicates type of resource to be checked in or out.
2005 */
2006 static char
2007 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2008 {
2009 	int i, qty = resnum[restype], resinuse = 0;
2010 
2011 	if (out) {
2012 		/* Gather used resources by all streams. */
2013 		for (i = 0; i < NR_ADB; i++) {
2014 			resinuse |= vortex->dma_adb[i].resources[restype];
2015 		}
2016 		resinuse |= vortex->fixed_res[restype];
2017 		/* Find and take free resource. */
2018 		for (i = 0; i < qty; i++) {
2019 			if ((resinuse & (1 << i)) == 0) {
2020 				if (resmap != NULL)
2021 					resmap[restype] |= (1 << i);
2022 				else
2023 					vortex->dma_adb[i].resources[restype] |= (1 << i);
2024 				/*
2025 				pr_debug(
2026 				       "vortex: ResManager: type %d out %d\n",
2027 				       restype, i);
2028 				*/
2029 				return i;
2030 			}
2031 		}
2032 	} else {
2033 		if (resmap == NULL)
2034 			return -EINVAL;
2035 		/* Checkin first resource of type restype. */
2036 		for (i = 0; i < qty; i++) {
2037 			if (resmap[restype] & (1 << i)) {
2038 				resmap[restype] &= ~(1 << i);
2039 				/*
2040 				pr_debug(
2041 				       "vortex: ResManager: type %d in %d\n",
2042 				       restype, i);
2043 				*/
2044 				return i;
2045 			}
2046 		}
2047 	}
2048 	pr_err( "vortex: FATAL: ResManager: resource type %d exhausted.\n", restype);
2049 	return -ENOMEM;
2050 }
2051 
2052 /* Default Connections  */
2053 
2054 static void vortex_connect_default(vortex_t * vortex, int en)
2055 {
2056 	// Connect AC97 codec.
2057 	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2058 				  VORTEX_RESOURCE_MIXOUT);
2059 	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2060 				  VORTEX_RESOURCE_MIXOUT);
2061 	if (VORTEX_IS_QUAD(vortex)) {
2062 		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2063 					  VORTEX_RESOURCE_MIXOUT);
2064 		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2065 					  VORTEX_RESOURCE_MIXOUT);
2066 	}
2067 	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2068 
2069 	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2070 				  VORTEX_RESOURCE_MIXIN);
2071 	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2072 				  VORTEX_RESOURCE_MIXIN);
2073 	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2074 
2075 	// Connect SPDIF
2076 #ifndef CHIP_AU8820
2077 	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2078 				  VORTEX_RESOURCE_MIXOUT);
2079 	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2080 				  VORTEX_RESOURCE_MIXOUT);
2081 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2082 				  ADB_SPDIFOUT(0));
2083 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2084 				  ADB_SPDIFOUT(1));
2085 #endif
2086 	// Connect WT
2087 #ifndef CHIP_AU8810
2088 	vortex_wt_connect(vortex, en);
2089 #endif
2090 	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2091 #ifndef CHIP_AU8820
2092 	vortex_Vort3D_connect(vortex, en);
2093 #endif
2094 	// Connect I2S
2095 
2096 	// Connect DSP interface for SQ3500 turbo (not here i think...)
2097 
2098 	// Connect AC98 modem codec
2099 
2100 }
2101 
2102 /*
2103   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2104   are deallocated.
2105   dma: DMA engine routes to be deallocated when dma >= 0.
2106   nr_ch: Number of channels to be de/allocated.
2107   dir: direction of stream. Uses same values as substream->stream.
2108   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2109   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2110 */
2111 static int
2112 vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
2113 			int type, int subdev)
2114 {
2115 	stream_t *stream;
2116 	int i, en;
2117 	struct pcm_vol *p;
2118 
2119 	if (dma >= 0) {
2120 		en = 0;
2121 		vortex_adb_checkinout(vortex,
2122 				      vortex->dma_adb[dma].resources, en,
2123 				      VORTEX_RESOURCE_DMA);
2124 	} else {
2125 		en = 1;
2126 		if ((dma =
2127 		     vortex_adb_checkinout(vortex, NULL, en,
2128 					   VORTEX_RESOURCE_DMA)) < 0)
2129 			return -EBUSY;
2130 	}
2131 
2132 	stream = &vortex->dma_adb[dma];
2133 	stream->dma = dma;
2134 	stream->dir = dir;
2135 	stream->type = type;
2136 
2137 	/* PLAYBACK ROUTES. */
2138 	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2139 		int src[4], mix[4], ch_top;
2140 #ifndef CHIP_AU8820
2141 		int a3d = 0;
2142 #endif
2143 		/* Get SRC and MIXER hardware resources. */
2144 		if (stream->type != VORTEX_PCM_SPDIF) {
2145 			for (i = 0; i < nr_ch; i++) {
2146 				if ((src[i] = vortex_adb_checkinout(vortex,
2147 							   stream->resources, en,
2148 							   VORTEX_RESOURCE_SRC)) < 0) {
2149 					memset(stream->resources, 0,
2150 					       sizeof(unsigned char) *
2151 					       VORTEX_RESOURCE_LAST);
2152 					return -EBUSY;
2153 				}
2154 				if (stream->type != VORTEX_PCM_A3D) {
2155 					if ((mix[i] = vortex_adb_checkinout(vortex,
2156 								   stream->resources,
2157 								   en,
2158 								   VORTEX_RESOURCE_MIXIN)) < 0) {
2159 						memset(stream->resources,
2160 						       0,
2161 						       sizeof(unsigned char) * VORTEX_RESOURCE_LAST);
2162 						return -EBUSY;
2163 					}
2164 				}
2165 			}
2166 		}
2167 #ifndef CHIP_AU8820
2168 		if (stream->type == VORTEX_PCM_A3D) {
2169 			if ((a3d =
2170 			     vortex_adb_checkinout(vortex,
2171 						   stream->resources, en,
2172 						   VORTEX_RESOURCE_A3D)) < 0) {
2173 				memset(stream->resources, 0,
2174 				       sizeof(unsigned char) *
2175 				       VORTEX_RESOURCE_LAST);
2176 				pr_err( "vortex: out of A3D sources. Sorry\n");
2177 				return -EBUSY;
2178 			}
2179 			/* (De)Initialize A3D hardware source. */
2180 			vortex_Vort3D_InitializeSource(&(vortex->a3d[a3d]), en);
2181 		}
2182 		/* Make SPDIF out exclusive to "spdif" device when in use. */
2183 		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2184 			vortex_route(vortex, 0, 0x14,
2185 				     ADB_MIXOUT(vortex->mixspdif[0]),
2186 				     ADB_SPDIFOUT(0));
2187 			vortex_route(vortex, 0, 0x14,
2188 				     ADB_MIXOUT(vortex->mixspdif[1]),
2189 				     ADB_SPDIFOUT(1));
2190 		}
2191 #endif
2192 		/* Make playback routes. */
2193 		for (i = 0; i < nr_ch; i++) {
2194 			if (stream->type == VORTEX_PCM_ADB) {
2195 				vortex_connection_adbdma_src(vortex, en,
2196 							     src[nr_ch - 1],
2197 							     dma,
2198 							     src[i]);
2199 				vortex_connection_src_mixin(vortex, en,
2200 							    0x11, src[i],
2201 							    mix[i]);
2202 				vortex_connection_mixin_mix(vortex, en,
2203 							    mix[i],
2204 							    MIX_PLAYB(i), 0);
2205 #ifndef CHIP_AU8820
2206 				vortex_connection_mixin_mix(vortex, en,
2207 							    mix[i],
2208 							    MIX_SPDIF(i % 2), 0);
2209 				vortex_mix_setinputvolumebyte(vortex,
2210 							      MIX_SPDIF(i % 2),
2211 							      mix[i],
2212 							      MIX_DEFIGAIN);
2213 #endif
2214 			}
2215 #ifndef CHIP_AU8820
2216 			if (stream->type == VORTEX_PCM_A3D) {
2217 				vortex_connection_adbdma_src(vortex, en,
2218 							     src[nr_ch - 1],
2219 								 dma,
2220 							     src[i]);
2221 				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2222 				/* XTalk test. */
2223 				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2224 				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2225 			}
2226 			if (stream->type == VORTEX_PCM_SPDIF)
2227 				vortex_route(vortex, en, 0x14,
2228 					     ADB_DMA(stream->dma),
2229 					     ADB_SPDIFOUT(i));
2230 #endif
2231 		}
2232 		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2233 			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2234 			for (i = nr_ch; i < ch_top; i++) {
2235 				vortex_connection_mixin_mix(vortex, en,
2236 							    mix[i % nr_ch],
2237 							    MIX_PLAYB(i), 0);
2238 #ifndef CHIP_AU8820
2239 				vortex_connection_mixin_mix(vortex, en,
2240 							    mix[i % nr_ch],
2241 							    MIX_SPDIF(i % 2),
2242 								0);
2243 				vortex_mix_setinputvolumebyte(vortex,
2244 							      MIX_SPDIF(i % 2),
2245 							      mix[i % nr_ch],
2246 							      MIX_DEFIGAIN);
2247 #endif
2248 			}
2249 			if (stream->type == VORTEX_PCM_ADB && en) {
2250 				p = &vortex->pcm_vol[subdev];
2251 				p->dma = dma;
2252 				for (i = 0; i < nr_ch; i++)
2253 					p->mixin[i] = mix[i];
2254 				for (i = 0; i < ch_top; i++)
2255 					p->vol[i] = 0;
2256 			}
2257 		}
2258 #ifndef CHIP_AU8820
2259 		else {
2260 			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2261 				vortex_route(vortex, en, 0x14,
2262 					     ADB_DMA(stream->dma),
2263 					     ADB_SPDIFOUT(1));
2264 		}
2265 		/* Reconnect SPDIF out when "spdif" device is down. */
2266 		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2267 			vortex_route(vortex, 1, 0x14,
2268 				     ADB_MIXOUT(vortex->mixspdif[0]),
2269 				     ADB_SPDIFOUT(0));
2270 			vortex_route(vortex, 1, 0x14,
2271 				     ADB_MIXOUT(vortex->mixspdif[1]),
2272 				     ADB_SPDIFOUT(1));
2273 		}
2274 #endif
2275 	/* CAPTURE ROUTES. */
2276 	} else {
2277 		int src[2], mix[2];
2278 
2279 		/* Get SRC and MIXER hardware resources. */
2280 		for (i = 0; i < nr_ch; i++) {
2281 			if ((mix[i] =
2282 			     vortex_adb_checkinout(vortex,
2283 						   stream->resources, en,
2284 						   VORTEX_RESOURCE_MIXOUT))
2285 			    < 0) {
2286 				memset(stream->resources, 0,
2287 				       sizeof(unsigned char) *
2288 				       VORTEX_RESOURCE_LAST);
2289 				return -EBUSY;
2290 			}
2291 			if ((src[i] =
2292 			     vortex_adb_checkinout(vortex,
2293 						   stream->resources, en,
2294 						   VORTEX_RESOURCE_SRC)) < 0) {
2295 				memset(stream->resources, 0,
2296 				       sizeof(unsigned char) *
2297 				       VORTEX_RESOURCE_LAST);
2298 				return -EBUSY;
2299 			}
2300 		}
2301 
2302 		/* Make capture routes. */
2303 		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2304 		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2305 		if (nr_ch == 1) {
2306 			vortex_connection_mixin_mix(vortex, en,
2307 						    MIX_CAPT(1), mix[0], 0);
2308 			vortex_connection_src_adbdma(vortex, en,
2309 						     src[0],
2310 						     src[0], dma);
2311 		} else {
2312 			vortex_connection_mixin_mix(vortex, en,
2313 						    MIX_CAPT(1), mix[1], 0);
2314 			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2315 						  src[1]);
2316 			vortex_connection_src_src_adbdma(vortex, en,
2317 							 src[1], src[0],
2318 							 src[1], dma);
2319 		}
2320 	}
2321 	vortex->dma_adb[dma].nr_ch = nr_ch;
2322 
2323 #if 0
2324 	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2325 	if (nr_ch < 4) {
2326 		/* Copy stereo to rear channel (surround) */
2327 		snd_ac97_write_cache(vortex->codec,
2328 				     AC97_SIGMATEL_DAC2INVERT,
2329 				     snd_ac97_read(vortex->codec,
2330 						   AC97_SIGMATEL_DAC2INVERT)
2331 				     | 4);
2332 	} else {
2333 		/* Allow separate front and rear channels. */
2334 		snd_ac97_write_cache(vortex->codec,
2335 				     AC97_SIGMATEL_DAC2INVERT,
2336 				     snd_ac97_read(vortex->codec,
2337 						   AC97_SIGMATEL_DAC2INVERT)
2338 				     & ~((u32)
2339 					 4));
2340 	}
2341 #endif
2342 	return dma;
2343 }
2344 
2345 /*
2346  Set the SampleRate of the SRC's attached to the given DMA engine.
2347  */
2348 static void
2349 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2350 {
2351 	stream_t *stream = &(vortex->dma_adb[adbdma]);
2352 	int i, cvrt;
2353 
2354 	/* dir=1:play ; dir=0:rec */
2355 	if (dir)
2356 		cvrt = SRC_RATIO(rate, 48000);
2357 	else
2358 		cvrt = SRC_RATIO(48000, rate);
2359 
2360 	/* Setup SRC's */
2361 	for (i = 0; i < NR_SRC; i++) {
2362 		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2363 			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2364 	}
2365 }
2366 
2367 // Timer and ISR functions.
2368 
2369 static void vortex_settimer(vortex_t * vortex, int period)
2370 {
2371 	//set the timer period to <period> 48000ths of a second.
2372 	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2373 }
2374 
2375 #if 0
2376 static void vortex_enable_timer_int(vortex_t * card)
2377 {
2378 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2379 		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2380 }
2381 
2382 static void vortex_disable_timer_int(vortex_t * card)
2383 {
2384 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2385 		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2386 }
2387 
2388 #endif
2389 static void vortex_enable_int(vortex_t * card)
2390 {
2391 	// CAsp4ISR__EnableVortexInt_void_
2392 	hwwrite(card->mmio, VORTEX_CTRL,
2393 		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2394 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2395 		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2396 }
2397 
2398 static void vortex_disable_int(vortex_t * card)
2399 {
2400 	hwwrite(card->mmio, VORTEX_CTRL,
2401 		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2402 }
2403 
2404 static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2405 {
2406 	vortex_t *vortex = dev_id;
2407 	int i, handled;
2408 	u32 source;
2409 
2410 	//check if the interrupt is ours.
2411 	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2412 		return IRQ_NONE;
2413 
2414 	// This is the Interrupt Enable flag we set before (consistency check).
2415 	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2416 		return IRQ_NONE;
2417 
2418 	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2419 	// Reset IRQ flags.
2420 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2421 	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2422 	// Is at least one IRQ flag set?
2423 	if (source == 0) {
2424 		pr_err( "vortex: missing irq source\n");
2425 		return IRQ_NONE;
2426 	}
2427 
2428 	handled = 0;
2429 	// Attend every interrupt source.
2430 	if (unlikely(source & IRQ_ERR_MASK)) {
2431 		if (source & IRQ_FATAL) {
2432 			pr_err( "vortex: IRQ fatal error\n");
2433 		}
2434 		if (source & IRQ_PARITY) {
2435 			pr_err( "vortex: IRQ parity error\n");
2436 		}
2437 		if (source & IRQ_REG) {
2438 			pr_err( "vortex: IRQ reg error\n");
2439 		}
2440 		if (source & IRQ_FIFO) {
2441 			pr_err( "vortex: IRQ fifo error\n");
2442 		}
2443 		if (source & IRQ_DMA) {
2444 			pr_err( "vortex: IRQ dma error\n");
2445 		}
2446 		handled = 1;
2447 	}
2448 	if (source & IRQ_PCMOUT) {
2449 		/* ALSA period acknowledge. */
2450 		spin_lock(&vortex->lock);
2451 		for (i = 0; i < NR_ADB; i++) {
2452 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2453 				if (!vortex_adbdma_bufshift(vortex, i))
2454 					continue;
2455 				spin_unlock(&vortex->lock);
2456 				snd_pcm_period_elapsed(vortex->dma_adb[i].
2457 						       substream);
2458 				spin_lock(&vortex->lock);
2459 			}
2460 		}
2461 #ifndef CHIP_AU8810
2462 		for (i = 0; i < NR_WT; i++) {
2463 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2464 				/* FIXME: we ignore the return value from
2465 				 * vortex_wtdma_bufshift() below as the delta
2466 				 * calculation seems not working for wavetable
2467 				 * by some reason
2468 				 */
2469 				vortex_wtdma_bufshift(vortex, i);
2470 				spin_unlock(&vortex->lock);
2471 				snd_pcm_period_elapsed(vortex->dma_wt[i].
2472 						       substream);
2473 				spin_lock(&vortex->lock);
2474 			}
2475 		}
2476 #endif
2477 		spin_unlock(&vortex->lock);
2478 		handled = 1;
2479 	}
2480 	//Acknowledge the Timer interrupt
2481 	if (source & IRQ_TIMER) {
2482 		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2483 		handled = 1;
2484 	}
2485 	if ((source & IRQ_MIDI) && vortex->rmidi) {
2486 		snd_mpu401_uart_interrupt(vortex->irq,
2487 					  vortex->rmidi->private_data);
2488 		handled = 1;
2489 	}
2490 
2491 	if (!handled) {
2492 		pr_err( "vortex: unknown irq source %x\n", source);
2493 	}
2494 	return IRQ_RETVAL(handled);
2495 }
2496 
2497 /* Codec */
2498 
2499 #define POLL_COUNT 1000
2500 static void vortex_codec_init(vortex_t * vortex)
2501 {
2502 	int i;
2503 
2504 	for (i = 0; i < 32; i++) {
2505 		/* the windows driver writes -i, so we write -i */
2506 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2507 		msleep(2);
2508 	}
2509 	if (0) {
2510 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2511 		msleep(1);
2512 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2513 		msleep(1);
2514 	} else {
2515 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2516 		msleep(2);
2517 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2518 		msleep(2);
2519 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2520 		msleep(2);
2521 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2522 		msleep(2);
2523 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2524 		msleep(2);
2525 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2526 	}
2527 	for (i = 0; i < 32; i++) {
2528 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2529 		msleep(5);
2530 	}
2531 	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2532 	msleep(1);
2533 	/* Enable codec channels 0 and 1. */
2534 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2535 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2536 }
2537 
2538 static void
2539 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2540 {
2541 
2542 	vortex_t *card = (vortex_t *) codec->private_data;
2543 	unsigned int lifeboat = 0;
2544 
2545 	/* wait for transactions to clear */
2546 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2547 		udelay(100);
2548 		if (lifeboat++ > POLL_COUNT) {
2549 			pr_err( "vortex: ac97 codec stuck busy\n");
2550 			return;
2551 		}
2552 	}
2553 	/* write register */
2554 	hwwrite(card->mmio, VORTEX_CODEC_IO,
2555 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2556 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2557 		VORTEX_CODEC_WRITE |
2558 		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2559 
2560 	/* Flush Caches. */
2561 	hwread(card->mmio, VORTEX_CODEC_IO);
2562 }
2563 
2564 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2565 {
2566 
2567 	vortex_t *card = (vortex_t *) codec->private_data;
2568 	u32 read_addr, data;
2569 	unsigned lifeboat = 0;
2570 
2571 	/* wait for transactions to clear */
2572 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2573 		udelay(100);
2574 		if (lifeboat++ > POLL_COUNT) {
2575 			pr_err( "vortex: ac97 codec stuck busy\n");
2576 			return 0xffff;
2577 		}
2578 	}
2579 	/* set up read address */
2580 	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2581 		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2582 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2583 
2584 	/* wait for address */
2585 	do {
2586 		udelay(100);
2587 		data = hwread(card->mmio, VORTEX_CODEC_IO);
2588 		if (lifeboat++ > POLL_COUNT) {
2589 			pr_err( "vortex: ac97 address never arrived\n");
2590 			return 0xffff;
2591 		}
2592 	} while ((data & VORTEX_CODEC_ADDMASK) !=
2593 		 (addr << VORTEX_CODEC_ADDSHIFT));
2594 
2595 	/* return data. */
2596 	return (u16) (data & VORTEX_CODEC_DATMASK);
2597 }
2598 
2599 /* SPDIF support  */
2600 
2601 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2602 {
2603 	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2604 
2605 	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2606 	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2607 		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2608 	//for (i=0x291D4; i<0x29200; i+=4)
2609 	for (i = 0; i < 11; i++)
2610 		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2611 	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2612 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2613 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2614 
2615 	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2616 	if (this_04 && this_08) {
2617 		int edi;
2618 
2619 		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2620 		if (i > 0x800) {
2621 			if (i < 0x1ffff)
2622 				edi = (i >> 1);
2623 			else
2624 				edi = 0x1ffff;
2625 		} else {
2626 			i = edi = 0x800;
2627 		}
2628 		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2629 		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2630 					this_0c, 1, 0, edi, 1);
2631 		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2632 					this_0c, 1, 0, edi, 1);
2633 	}
2634 
2635 	i = spdif_sr;
2636 	spdif_sr |= 0x8c;
2637 	switch (i) {
2638 	case 32000:
2639 		this_38 &= 0xFFFFFFFE;
2640 		this_38 &= 0xFFFFFFFD;
2641 		this_38 &= 0xF3FFFFFF;
2642 		this_38 |= 0x03000000;	/* set 32khz samplerate */
2643 		this_38 &= 0xFFFFFF3F;
2644 		spdif_sr &= 0xFFFFFFFD;
2645 		spdif_sr |= 1;
2646 		break;
2647 	case 44100:
2648 		this_38 &= 0xFFFFFFFE;
2649 		this_38 &= 0xFFFFFFFD;
2650 		this_38 &= 0xF0FFFFFF;
2651 		this_38 |= 0x03000000;
2652 		this_38 &= 0xFFFFFF3F;
2653 		spdif_sr &= 0xFFFFFFFC;
2654 		break;
2655 	case 48000:
2656 		if (spdif_mode == 1) {
2657 			this_38 &= 0xFFFFFFFE;
2658 			this_38 &= 0xFFFFFFFD;
2659 			this_38 &= 0xF2FFFFFF;
2660 			this_38 |= 0x02000000;	/* set 48khz samplerate */
2661 			this_38 &= 0xFFFFFF3F;
2662 		} else {
2663 			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2664 			this_38 |= 0x00000003;
2665 			this_38 &= 0xFFFFFFBF;
2666 			this_38 |= 0x80;
2667 		}
2668 		spdif_sr |= 2;
2669 		spdif_sr &= 0xFFFFFFFE;
2670 		break;
2671 
2672 	}
2673 	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2674 	   registers. seems to be for the standard IEC/SPDIF initialization
2675 	   stuff */
2676 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2677 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2678 	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2679 }
2680 
2681 /* Initialization */
2682 
2683 static int vortex_core_init(vortex_t *vortex)
2684 {
2685 
2686 	pr_info( "Vortex: init.... ");
2687 	/* Hardware Init. */
2688 	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2689 	msleep(5);
2690 	hwwrite(vortex->mmio, VORTEX_CTRL,
2691 		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2692 	msleep(5);
2693 	/* Reset IRQ flags */
2694 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2695 	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2696 
2697 	vortex_codec_init(vortex);
2698 
2699 #ifdef CHIP_AU8830
2700 	hwwrite(vortex->mmio, VORTEX_CTRL,
2701 		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2702 #endif
2703 
2704 	/* Init audio engine. */
2705 	vortex_adbdma_init(vortex);
2706 	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2707 	vortex_adb_init(vortex);
2708 	/* Init processing blocks. */
2709 	vortex_fifo_init(vortex);
2710 	vortex_mixer_init(vortex);
2711 	vortex_srcblock_init(vortex);
2712 #ifndef CHIP_AU8820
2713 	vortex_eq_init(vortex);
2714 	vortex_spdif_init(vortex, 48000, 1);
2715 	vortex_Vort3D_enable(vortex);
2716 #endif
2717 #ifndef CHIP_AU8810
2718 	vortex_wt_init(vortex);
2719 #endif
2720 	// Moved to au88x0.c
2721 	//vortex_connect_default(vortex, 1);
2722 
2723 	vortex_settimer(vortex, 0x90);
2724 	// Enable Interrupts.
2725 	// vortex_enable_int() must be first !!
2726 	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2727 	// vortex_enable_int(vortex);
2728 	//vortex_enable_timer_int(vortex);
2729 	//vortex_disable_timer_int(vortex);
2730 
2731 	pr_info( "done.\n");
2732 	spin_lock_init(&vortex->lock);
2733 
2734 	return 0;
2735 }
2736 
2737 static int vortex_core_shutdown(vortex_t * vortex)
2738 {
2739 
2740 	pr_info( "Vortex: shutdown...");
2741 #ifndef CHIP_AU8820
2742 	vortex_eq_free(vortex);
2743 	vortex_Vort3D_disable(vortex);
2744 #endif
2745 	//vortex_disable_timer_int(vortex);
2746 	vortex_disable_int(vortex);
2747 	vortex_connect_default(vortex, 0);
2748 	/* Reset all DMA fifos. */
2749 	vortex_fifo_init(vortex);
2750 	/* Erase all audio routes. */
2751 	vortex_adb_init(vortex);
2752 
2753 	/* Disable MPU401 */
2754 	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2755 	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2756 
2757 	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2758 	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2759 	msleep(5);
2760 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2761 
2762 	pr_info( "done.\n");
2763 	return 0;
2764 }
2765 
2766 /* Alsa support. */
2767 
2768 static int vortex_alsafmt_aspfmt(int alsafmt)
2769 {
2770 	int fmt;
2771 
2772 	switch (alsafmt) {
2773 	case SNDRV_PCM_FORMAT_U8:
2774 		fmt = 0x1;
2775 		break;
2776 	case SNDRV_PCM_FORMAT_MU_LAW:
2777 		fmt = 0x2;
2778 		break;
2779 	case SNDRV_PCM_FORMAT_A_LAW:
2780 		fmt = 0x3;
2781 		break;
2782 	case SNDRV_PCM_FORMAT_SPECIAL:
2783 		fmt = 0x4;	/* guess. */
2784 		break;
2785 	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2786 		fmt = 0x5;	/* guess. */
2787 		break;
2788 	case SNDRV_PCM_FORMAT_S16_LE:
2789 		fmt = 0x8;
2790 		break;
2791 	case SNDRV_PCM_FORMAT_S16_BE:
2792 		fmt = 0x9;	/* check this... */
2793 		break;
2794 	default:
2795 		fmt = 0x8;
2796 		pr_err( "vortex: format unsupported %d\n", alsafmt);
2797 		break;
2798 	}
2799 	return fmt;
2800 }
2801 
2802 /* Some not yet useful translations. */
2803 #if 0
2804 typedef enum {
2805 	ASPFMTLINEAR16 = 0,	/* 0x8 */
2806 	ASPFMTLINEAR8,		/* 0x1 */
2807 	ASPFMTULAW,		/* 0x2 */
2808 	ASPFMTALAW,		/* 0x3 */
2809 	ASPFMTSPORT,		/* ? */
2810 	ASPFMTSPDIF,		/* ? */
2811 } ASPENCODING;
2812 
2813 static int
2814 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2815 {
2816 	int a, this_194;
2817 
2818 	if ((bits != 8) && (bits != 16))
2819 		return -1;
2820 
2821 	switch (encod) {
2822 	case 0:
2823 		if (bits == 0x10)
2824 			a = 8;	// 16 bit
2825 		break;
2826 	case 1:
2827 		if (bits == 8)
2828 			a = 1;	// 8 bit
2829 		break;
2830 	case 2:
2831 		a = 2;		// U_LAW
2832 		break;
2833 	case 3:
2834 		a = 3;		// A_LAW
2835 		break;
2836 	}
2837 	switch (nch) {
2838 	case 1:
2839 		this_194 = 0;
2840 		break;
2841 	case 2:
2842 		this_194 = 1;
2843 		break;
2844 	case 4:
2845 		this_194 = 1;
2846 		break;
2847 	case 6:
2848 		this_194 = 1;
2849 		break;
2850 	}
2851 	return (a);
2852 }
2853 
2854 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2855 {
2856 	short int d, this_148;
2857 
2858 	d = ((bits >> 3) * nch);
2859 	this_148 = 0xbb80 / d;
2860 }
2861 #endif
2862