xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision 504f231c)
1 /*
2  *  This program is free software; you can redistribute it and/or modify
3  *  it under the terms of the GNU General Public License as published by
4  *  the Free Software Foundation; either version 2 of the License, or
5  *  (at your option) any later version.
6  *
7  *  This program is distributed in the hope that it will be useful,
8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  *  GNU Library General Public License for more details.
11  *
12  *  You should have received a copy of the GNU General Public License
13  *  along with this program; if not, write to the Free Software
14  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15  */
16 
17 /*
18     Vortex core low level functions.
19 
20  Author: Manuel Jander (mjander@users.sourceforge.cl)
21  These functions are mainly the result of translations made
22  from the original disassembly of the au88x0 binary drivers,
23  written by Aureal before they went down.
24  Many thanks to the Jeff Muizelaar, Kester Maddock, and whoever
25  contributed to the OpenVortex project.
26  The author of this file, put the few available pieces together
27  and translated the rest of the riddle (Mix, Src and connection stuff).
28  Some things are still to be discovered, and their meanings are unclear.
29 
30  Some of these functions aren't intended to be really used, rather
31  to help to understand how does the AU88X0 chips work. Keep them in, because
32  they could be used somewhere in the future.
33 
34  This code hasn't been tested or proof read thoroughly. If you wanna help,
35  take a look at the AU88X0 assembly and check if this matches.
36  Functions tested ok so far are (they show the desired effect
37  at least):
38    vortex_routes(); (1 bug fixed).
39    vortex_adb_addroute();
40    vortex_adb_addroutes();
41    vortex_connect_codecplay();
42    vortex_src_flushbuffers();
43    vortex_adbdma_setmode();  note: still some unknown arguments!
44    vortex_adbdma_startfifo();
45    vortex_adbdma_stopfifo();
46    vortex_fifo_setadbctrl(); note: still some unknown arguments!
47    vortex_mix_setinputvolumebyte();
48    vortex_mix_enableinput();
49    vortex_mixer_addWTD(); (fixed)
50    vortex_connection_adbdma_src_src();
51    vortex_connection_adbdma_src();
52    vortex_src_change_convratio();
53    vortex_src_addWTD(); (fixed)
54 
55  History:
56 
57  01-03-2003 First revision.
58  01-21-2003 Some bug fixes.
59  17-02-2003 many bugfixes after a big versioning mess.
60  18-02-2003 JAAAAAHHHUUUUUU!!!! The mixer works !! I'm just so happy !
61 			 (2 hours later...) I cant believe it! Im really lucky today.
62 			 Now the SRC is working too! Yeah! XMMS works !
63  20-02-2003 First steps into the ALSA world.
64  28-02-2003 As my birthday present, i discovered how the DMA buffer pages really
65             work :-). It was all wrong.
66  12-03-2003 ALSA driver starts working (2 channels).
67  16-03-2003 More srcblock_setupchannel discoveries.
68  12-04-2003 AU8830 playback support. Recording in the works.
69  17-04-2003 vortex_route() and vortex_routes() bug fixes. AU8830 recording
70  			works now, but chipn' dale effect is still there.
71  16-05-2003 SrcSetupChannel cleanup. Moved the Src setup stuff entirely
72             into au88x0_pcm.c .
73  06-06-2003 Buffer shifter bugfix. Mixer volume fix.
74  07-12-2003 A3D routing finally fixed. Believed to be OK.
75  25-03-2004 Many thanks to Claudia, for such valuable bug reports.
76 
77 */
78 
79 #include "au88x0.h"
80 #include "au88x0_a3d.h"
81 #include <linux/delay.h>
82 
83 /*  MIXER (CAsp4Mix.s and CAsp4Mixer.s) */
84 
85 // FIXME: get rid of this.
86 static int mchannels[NR_MIXIN];
87 static int rampchs[NR_MIXIN];
88 
89 static void vortex_mixer_en_sr(vortex_t * vortex, int channel)
90 {
91 	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
92 		hwread(vortex->mmio, VORTEX_MIXER_SR) | (0x1 << channel));
93 }
94 static void vortex_mixer_dis_sr(vortex_t * vortex, int channel)
95 {
96 	hwwrite(vortex->mmio, VORTEX_MIXER_SR,
97 		hwread(vortex->mmio, VORTEX_MIXER_SR) & ~(0x1 << channel));
98 }
99 
100 #if 0
101 static void
102 vortex_mix_muteinputgain(vortex_t * vortex, unsigned char mix,
103 			 unsigned char channel)
104 {
105 	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_A + ((mix << 5) + channel),
106 		0x80);
107 	hwwrite(vortex->mmio, VORTEX_MIX_INVOL_B + ((mix << 5) + channel),
108 		0x80);
109 }
110 
111 static int vortex_mix_getvolume(vortex_t * vortex, unsigned char mix)
112 {
113 	int a;
114 	a = hwread(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2)) & 0xff;
115 	//FP2LinearFrac(a);
116 	return (a);
117 }
118 
119 static int
120 vortex_mix_getinputvolume(vortex_t * vortex, unsigned char mix,
121 			  int channel, int *vol)
122 {
123 	int a;
124 	if (!(mchannels[mix] & (1 << channel)))
125 		return 0;
126 	a = hwread(vortex->mmio,
127 		   VORTEX_MIX_INVOL_A + (((mix << 5) + channel) << 2));
128 	/*
129 	   if (rampchs[mix] == 0)
130 	   a = FP2LinearFrac(a);
131 	   else
132 	   a = FP2LinearFracWT(a);
133 	 */
134 	*vol = a;
135 	return (0);
136 }
137 
138 static unsigned int vortex_mix_boost6db(unsigned char vol)
139 {
140 	return (vol + 8);	/* WOW! what a complex function! */
141 }
142 
143 static void vortex_mix_rampvolume(vortex_t * vortex, int mix)
144 {
145 	int ch;
146 	char a;
147 	// This function is intended for ramping down only (see vortex_disableinput()).
148 	for (ch = 0; ch < 0x20; ch++) {
149 		if (((1 << ch) & rampchs[mix]) == 0)
150 			continue;
151 		a = hwread(vortex->mmio,
152 			   VORTEX_MIX_INVOL_B + (((mix << 5) + ch) << 2));
153 		if (a > -126) {
154 			a -= 2;
155 			hwwrite(vortex->mmio,
156 				VORTEX_MIX_INVOL_A +
157 				(((mix << 5) + ch) << 2), a);
158 			hwwrite(vortex->mmio,
159 				VORTEX_MIX_INVOL_B +
160 				(((mix << 5) + ch) << 2), a);
161 		} else
162 			vortex_mix_killinput(vortex, mix, ch);
163 	}
164 }
165 
166 static int
167 vortex_mix_getenablebit(vortex_t * vortex, unsigned char mix, int mixin)
168 {
169 	int addr, temp;
170 	if (mixin >= 0)
171 		addr = mixin;
172 	else
173 		addr = mixin + 3;
174 	addr = ((mix << 3) + (addr >> 2)) << 2;
175 	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
176 	return ((temp >> (mixin & 3)) & 1);
177 }
178 #endif
179 static void
180 vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
181 			 unsigned char vol)
182 {
183 	int temp;
184 	hwwrite(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2), vol);
185 	if (1) {		/*if (this_10) */
186 		temp = hwread(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2));
187 		if ((temp != 0x80) || (vol == 0x80))
188 			return;
189 	}
190 	hwwrite(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2), vol);
191 }
192 
193 static void
194 vortex_mix_setinputvolumebyte(vortex_t * vortex, unsigned char mix,
195 			      int mixin, unsigned char vol)
196 {
197 	int temp;
198 
199 	hwwrite(vortex->mmio,
200 		VORTEX_MIX_INVOL_A + (((mix << 5) + mixin) << 2), vol);
201 	if (1) {		/* this_10, initialized to 1. */
202 		temp =
203 		    hwread(vortex->mmio,
204 			   VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2));
205 		if ((temp != 0x80) || (vol == 0x80))
206 			return;
207 	}
208 	hwwrite(vortex->mmio,
209 		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), vol);
210 }
211 
212 static void
213 vortex_mix_setenablebit(vortex_t * vortex, unsigned char mix, int mixin, int en)
214 {
215 	int temp, addr;
216 
217 	if (mixin < 0)
218 		addr = (mixin + 3);
219 	else
220 		addr = mixin;
221 	addr = ((mix << 3) + (addr >> 2)) << 2;
222 	temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
223 	if (en)
224 		temp |= (1 << (mixin & 3));
225 	else
226 		temp &= ~(1 << (mixin & 3));
227 	/* Mute input. Astatic void crackling? */
228 	hwwrite(vortex->mmio,
229 		VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), 0x80);
230 	/* Looks like clear buffer. */
231 	hwwrite(vortex->mmio, VORTEX_MIX_SMP + (mixin << 2), 0x0);
232 	hwwrite(vortex->mmio, VORTEX_MIX_SMP + 4 + (mixin << 2), 0x0);
233 	/* Write enable bit. */
234 	hwwrite(vortex->mmio, VORTEX_MIX_ENIN + addr, temp);
235 }
236 
237 static void
238 vortex_mix_killinput(vortex_t * vortex, unsigned char mix, int mixin)
239 {
240 	rampchs[mix] &= ~(1 << mixin);
241 	vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);
242 	mchannels[mix] &= ~(1 << mixin);
243 	vortex_mix_setenablebit(vortex, mix, mixin, 0);
244 }
245 
246 static void
247 vortex_mix_enableinput(vortex_t * vortex, unsigned char mix, int mixin)
248 {
249 	vortex_mix_killinput(vortex, mix, mixin);
250 	if ((mchannels[mix] & (1 << mixin)) == 0) {
251 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);	/*0x80 : mute */
252 		mchannels[mix] |= (1 << mixin);
253 	}
254 	vortex_mix_setenablebit(vortex, mix, mixin, 1);
255 }
256 
257 static void
258 vortex_mix_disableinput(vortex_t * vortex, unsigned char mix, int channel,
259 			int ramp)
260 {
261 	if (ramp) {
262 		rampchs[mix] |= (1 << channel);
263 		// Register callback.
264 		//vortex_mix_startrampvolume(vortex);
265 		vortex_mix_killinput(vortex, mix, channel);
266 	} else
267 		vortex_mix_killinput(vortex, mix, channel);
268 }
269 
270 static int
271 vortex_mixer_addWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
272 {
273 	int temp, lifeboat = 0, prev;
274 
275 	temp = hwread(vortex->mmio, VORTEX_MIXER_SR);
276 	if ((temp & (1 << ch)) == 0) {
277 		hwwrite(vortex->mmio, VORTEX_MIXER_CHNBASE + (ch << 2), mix);
278 		vortex_mixer_en_sr(vortex, ch);
279 		return 1;
280 	}
281 	prev = VORTEX_MIXER_CHNBASE + (ch << 2);
282 	temp = hwread(vortex->mmio, prev);
283 	while (temp & 0x10) {
284 		prev = VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2);
285 		temp = hwread(vortex->mmio, prev);
286 		//printk(KERN_INFO "vortex: mixAddWTD: while addr=%x, val=%x\n", prev, temp);
287 		if ((++lifeboat) > 0xf) {
288 			dev_err(vortex->card->dev,
289 				"vortex_mixer_addWTD: lifeboat overflow\n");
290 			return 0;
291 		}
292 	}
293 	hwwrite(vortex->mmio, VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2), mix);
294 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
295 	return 1;
296 }
297 
298 static int
299 vortex_mixer_delWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
300 {
301 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
302 	//int esp1f=edi(while)=src, esp10=ch;
303 
304 	eax = hwread(vortex->mmio, VORTEX_MIXER_SR);
305 	if (((1 << ch) & eax) == 0) {
306 		dev_err(vortex->card->dev, "mix ALARM %x\n", eax);
307 		return 0;
308 	}
309 	ebp = VORTEX_MIXER_CHNBASE + (ch << 2);
310 	esp18 = hwread(vortex->mmio, ebp);
311 	if (esp18 & 0x10) {
312 		ebx = (esp18 & 0xf);
313 		if (mix == ebx) {
314 			ebx = VORTEX_MIXER_RTBASE + (mix << 2);
315 			edx = hwread(vortex->mmio, ebx);
316 			//7b60
317 			hwwrite(vortex->mmio, ebp, edx);
318 			hwwrite(vortex->mmio, ebx, 0);
319 		} else {
320 			//7ad3
321 			edx =
322 			    hwread(vortex->mmio,
323 				   VORTEX_MIXER_RTBASE + (ebx << 2));
324 			//printk(KERN_INFO "vortex: mixdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
325 			while ((edx & 0xf) != mix) {
326 				if ((esi) > 0xf) {
327 					dev_err(vortex->card->dev,
328 						"mixdelWTD: error lifeboat overflow\n");
329 					return 0;
330 				}
331 				esp14 = ebx;
332 				ebx = edx & 0xf;
333 				ebp = ebx << 2;
334 				edx =
335 				    hwread(vortex->mmio,
336 					   VORTEX_MIXER_RTBASE + ebp);
337 				//printk(KERN_INFO "vortex: mixdelWTD: while addr=%x, val=%x\n", ebp, edx);
338 				esi++;
339 			}
340 			//7b30
341 			ebp = ebx << 2;
342 			if (edx & 0x10) {	/* Delete entry in between others */
343 				ebx = VORTEX_MIXER_RTBASE + ((edx & 0xf) << 2);
344 				edx = hwread(vortex->mmio, ebx);
345 				//7b60
346 				hwwrite(vortex->mmio,
347 					VORTEX_MIXER_RTBASE + ebp, edx);
348 				hwwrite(vortex->mmio, ebx, 0);
349 				//printk(KERN_INFO "vortex mixdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
350 			} else {	/* Delete last entry */
351 				//7b83
352 				if (esp14 == -1)
353 					hwwrite(vortex->mmio,
354 						VORTEX_MIXER_CHNBASE +
355 						(ch << 2), esp18 & 0xef);
356 				else {
357 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
358 					hwwrite(vortex->mmio,
359 						VORTEX_MIXER_RTBASE +
360 						(esp14 << 2), ebx);
361 					//printk(KERN_INFO "vortex mixdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
362 				}
363 				hwwrite(vortex->mmio,
364 					VORTEX_MIXER_RTBASE + ebp, 0);
365 				return 1;
366 			}
367 		}
368 	} else {
369 		//printk(KERN_INFO "removed last mix\n");
370 		//7be0
371 		vortex_mixer_dis_sr(vortex, ch);
372 		hwwrite(vortex->mmio, ebp, 0);
373 	}
374 	return 1;
375 }
376 
377 static void vortex_mixer_init(vortex_t * vortex)
378 {
379 	u32 addr;
380 	int x;
381 
382 	// FIXME: get rid of this crap.
383 	memset(mchannels, 0, NR_MIXOUT * sizeof(int));
384 	memset(rampchs, 0, NR_MIXOUT * sizeof(int));
385 
386 	addr = VORTEX_MIX_SMP + 0x17c;
387 	for (x = 0x5f; x >= 0; x--) {
388 		hwwrite(vortex->mmio, addr, 0);
389 		addr -= 4;
390 	}
391 	addr = VORTEX_MIX_ENIN + 0x1fc;
392 	for (x = 0x7f; x >= 0; x--) {
393 		hwwrite(vortex->mmio, addr, 0);
394 		addr -= 4;
395 	}
396 	addr = VORTEX_MIX_SMP + 0x17c;
397 	for (x = 0x5f; x >= 0; x--) {
398 		hwwrite(vortex->mmio, addr, 0);
399 		addr -= 4;
400 	}
401 	addr = VORTEX_MIX_INVOL_A + 0x7fc;
402 	for (x = 0x1ff; x >= 0; x--) {
403 		hwwrite(vortex->mmio, addr, 0x80);
404 		addr -= 4;
405 	}
406 	addr = VORTEX_MIX_VOL_A + 0x3c;
407 	for (x = 0xf; x >= 0; x--) {
408 		hwwrite(vortex->mmio, addr, 0x80);
409 		addr -= 4;
410 	}
411 	addr = VORTEX_MIX_INVOL_B + 0x7fc;
412 	for (x = 0x1ff; x >= 0; x--) {
413 		hwwrite(vortex->mmio, addr, 0x80);
414 		addr -= 4;
415 	}
416 	addr = VORTEX_MIX_VOL_B + 0x3c;
417 	for (x = 0xf; x >= 0; x--) {
418 		hwwrite(vortex->mmio, addr, 0x80);
419 		addr -= 4;
420 	}
421 	addr = VORTEX_MIXER_RTBASE + (MIXER_RTBASE_SIZE - 1) * 4;
422 	for (x = (MIXER_RTBASE_SIZE - 1); x >= 0; x--) {
423 		hwwrite(vortex->mmio, addr, 0x0);
424 		addr -= 4;
425 	}
426 	hwwrite(vortex->mmio, VORTEX_MIXER_SR, 0);
427 
428 	/* Set clipping ceiling (this may be all wrong). */
429 	/*
430 	for (x = 0; x < 0x80; x++) {
431 		hwwrite(vortex->mmio, VORTEX_MIXER_CLIP + (x << 2), 0x3ffff);
432 	}
433 	*/
434 	/*
435 	   call CAsp4Mix__Initialize_CAsp4HwIO____CAsp4Mixer____
436 	   Register ISR callback for volume smooth fade out.
437 	   Maybe this avoids clicks when press "stop" ?
438 	 */
439 }
440 
441 /*  SRC (CAsp4Src.s and CAsp4SrcBlock) */
442 
443 static void vortex_src_en_sr(vortex_t * vortex, int channel)
444 {
445 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
446 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) | (0x1 << channel));
447 }
448 
449 static void vortex_src_dis_sr(vortex_t * vortex, int channel)
450 {
451 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
452 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) & ~(0x1 << channel));
453 }
454 
455 static void vortex_src_flushbuffers(vortex_t * vortex, unsigned char src)
456 {
457 	int i;
458 
459 	for (i = 0x1f; i >= 0; i--)
460 		hwwrite(vortex->mmio,
461 			VORTEX_SRC_DATA0 + (src << 7) + (i << 2), 0);
462 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3), 0);
463 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3) + 4, 0);
464 }
465 
466 static void vortex_src_cleardrift(vortex_t * vortex, unsigned char src)
467 {
468 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
469 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT1 + (src << 2), 0);
470 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
471 }
472 
473 static void
474 vortex_src_set_throttlesource(vortex_t * vortex, unsigned char src, int en)
475 {
476 	int temp;
477 
478 	temp = hwread(vortex->mmio, VORTEX_SRC_SOURCE);
479 	if (en)
480 		temp |= 1 << src;
481 	else
482 		temp &= ~(1 << src);
483 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCE, temp);
484 }
485 
486 static int
487 vortex_src_persist_convratio(vortex_t * vortex, unsigned char src, int ratio)
488 {
489 	int temp, lifeboat = 0;
490 
491 	do {
492 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), ratio);
493 		temp = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
494 		if ((++lifeboat) > 0x9) {
495 			dev_err(vortex->card->dev, "Src cvr fail\n");
496 			break;
497 		}
498 	}
499 	while (temp != ratio);
500 	return temp;
501 }
502 
503 #if 0
504 static void vortex_src_slowlock(vortex_t * vortex, unsigned char src)
505 {
506 	int temp;
507 
508 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
509 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
510 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
511 	if (temp & 0x200)
512 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
513 			temp & ~0x200L);
514 }
515 
516 static void
517 vortex_src_change_convratio(vortex_t * vortex, unsigned char src, int ratio)
518 {
519 	int temp, a;
520 
521 	if ((ratio & 0x10000) && (ratio != 0x10000)) {
522 		if (ratio & 0x3fff)
523 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 1;
524 		else
525 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 2;
526 	} else
527 		a = 0xc;
528 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
529 	if (((temp >> 4) & 0xf) != a)
530 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
531 			(temp & 0xf) | ((a & 0xf) << 4));
532 
533 	vortex_src_persist_convratio(vortex, src, ratio);
534 }
535 
536 static int
537 vortex_src_checkratio(vortex_t * vortex, unsigned char src,
538 		      unsigned int desired_ratio)
539 {
540 	int hw_ratio, lifeboat = 0;
541 
542 	hw_ratio = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
543 
544 	while (hw_ratio != desired_ratio) {
545 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), desired_ratio);
546 
547 		if ((lifeboat++) > 15) {
548 			pr_err( "Vortex: could not set src-%d from %d to %d\n",
549 			       src, hw_ratio, desired_ratio);
550 			break;
551 		}
552 	}
553 
554 	return hw_ratio;
555 }
556 
557 #endif
558 /*
559  Objective: Set samplerate for given SRC module.
560  Arguments:
561 	card:	pointer to vortex_t strcut.
562 	src:	Integer index of the SRC module.
563 	cr:		Current sample rate conversion factor.
564 	b:		unknown 16 bit value.
565 	sweep:	Enable Samplerate fade from cr toward tr flag.
566 	dirplay: 1: playback, 0: recording.
567 	sl:		Slow Lock flag.
568 	tr:		Target samplerate conversion.
569 	thsource: Throttle source flag (no idea what that means).
570 */
571 static void vortex_src_setupchannel(vortex_t * card, unsigned char src,
572 			unsigned int cr, unsigned int b, int sweep, int d,
573 			int dirplay, int sl, unsigned int tr, int thsource)
574 {
575 	// noplayback: d=2,4,7,0xa,0xb when using first 2 src's.
576 	// c: enables pitch sweep.
577 	// looks like g is c related. Maybe g is a sweep parameter ?
578 	// g = cvr
579 	// dirplay: 0 = recording, 1 = playback
580 	// d = src hw index.
581 
582 	int esi, ebp = 0, esp10;
583 
584 	vortex_src_flushbuffers(card, src);
585 
586 	if (sweep) {
587 		if ((tr & 0x10000) && (tr != 0x10000)) {
588 			tr = 0;
589 			esi = 0x7;
590 		} else {
591 			if ((((short)tr) < 0) && (tr != 0x8000)) {
592 				tr = 0;
593 				esi = 0x8;
594 			} else {
595 				tr = 1;
596 				esi = 0xc;
597 			}
598 		}
599 	} else {
600 		if ((cr & 0x10000) && (cr != 0x10000)) {
601 			tr = 0;	/*ebx = 0 */
602 			esi = 0x11 - ((cr >> 0xe) & 7);
603 			if (cr & 0x3fff)
604 				esi -= 1;
605 			else
606 				esi -= 2;
607 		} else {
608 			tr = 1;
609 			esi = 0xc;
610 		}
611 	}
612 	vortex_src_cleardrift(card, src);
613 	vortex_src_set_throttlesource(card, src, thsource);
614 
615 	if ((dirplay == 0) && (sweep == 0)) {
616 		if (tr)
617 			esp10 = 0xf;
618 		else
619 			esp10 = 0xc;
620 		ebp = 0;
621 	} else {
622 		if (tr)
623 			ebp = 0xf;
624 		else
625 			ebp = 0xc;
626 		esp10 = 0;
627 	}
628 	hwwrite(card->mmio, VORTEX_SRC_U0 + (src << 2),
629 		(sl << 0x9) | (sweep << 0x8) | ((esi & 0xf) << 4) | d);
630 	/* 0xc0   esi=0xc c=f=0 d=0 */
631 	vortex_src_persist_convratio(card, src, cr);
632 	hwwrite(card->mmio, VORTEX_SRC_U1 + (src << 2), b & 0xffff);
633 	/* 0   b=0 */
634 	hwwrite(card->mmio, VORTEX_SRC_U2 + (src << 2),
635 		(tr << 0x11) | (dirplay << 0x10) | (ebp << 0x8) | esp10);
636 	/* 0x30f00 e=g=1 esp10=0 ebp=f */
637 	//printk(KERN_INFO "vortex: SRC %d, d=0x%x, esi=0x%x, esp10=0x%x, ebp=0x%x\n", src, d, esi, esp10, ebp);
638 }
639 
640 static void vortex_srcblock_init(vortex_t * vortex)
641 {
642 	u32 addr;
643 	int x;
644 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCESIZE, 0x1ff);
645 	/*
646 	   for (x=0; x<0x10; x++) {
647 	   vortex_src_init(&vortex_src[x], x);
648 	   }
649 	 */
650 	//addr = 0xcc3c;
651 	//addr = 0x26c3c;
652 	addr = VORTEX_SRC_RTBASE + 0x3c;
653 	for (x = 0xf; x >= 0; x--) {
654 		hwwrite(vortex->mmio, addr, 0);
655 		addr -= 4;
656 	}
657 	//addr = 0xcc94;
658 	//addr = 0x26c94;
659 	addr = VORTEX_SRC_CHNBASE + 0x54;
660 	for (x = 0x15; x >= 0; x--) {
661 		hwwrite(vortex->mmio, addr, 0);
662 		addr -= 4;
663 	}
664 }
665 
666 static int
667 vortex_src_addWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
668 {
669 	int temp, lifeboat = 0, prev;
670 	// esp13 = src
671 
672 	temp = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
673 	if ((temp & (1 << ch)) == 0) {
674 		hwwrite(vortex->mmio, VORTEX_SRC_CHNBASE + (ch << 2), src);
675 		vortex_src_en_sr(vortex, ch);
676 		return 1;
677 	}
678 	prev = VORTEX_SRC_CHNBASE + (ch << 2);	/*ebp */
679 	temp = hwread(vortex->mmio, prev);
680 	//while (temp & NR_SRC) {
681 	while (temp & 0x10) {
682 		prev = VORTEX_SRC_RTBASE + ((temp & 0xf) << 2);	/*esp12 */
683 		//prev = VORTEX_SRC_RTBASE + ((temp & (NR_SRC-1)) << 2); /*esp12*/
684 		temp = hwread(vortex->mmio, prev);
685 		//printk(KERN_INFO "vortex: srcAddWTD: while addr=%x, val=%x\n", prev, temp);
686 		if ((++lifeboat) > 0xf) {
687 			dev_err(vortex->card->dev,
688 				"vortex_src_addWTD: lifeboat overflow\n");
689 			return 0;
690 		}
691 	}
692 	hwwrite(vortex->mmio, VORTEX_SRC_RTBASE + ((temp & 0xf) << 2), src);
693 	//hwwrite(vortex->mmio, prev, (temp & (NR_SRC-1)) | NR_SRC);
694 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
695 	return 1;
696 }
697 
698 static int
699 vortex_src_delWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
700 {
701 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
702 	//int esp1f=edi(while)=src, esp10=ch;
703 
704 	eax = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
705 	if (((1 << ch) & eax) == 0) {
706 		dev_err(vortex->card->dev, "src alarm\n");
707 		return 0;
708 	}
709 	ebp = VORTEX_SRC_CHNBASE + (ch << 2);
710 	esp18 = hwread(vortex->mmio, ebp);
711 	if (esp18 & 0x10) {
712 		ebx = (esp18 & 0xf);
713 		if (src == ebx) {
714 			ebx = VORTEX_SRC_RTBASE + (src << 2);
715 			edx = hwread(vortex->mmio, ebx);
716 			//7b60
717 			hwwrite(vortex->mmio, ebp, edx);
718 			hwwrite(vortex->mmio, ebx, 0);
719 		} else {
720 			//7ad3
721 			edx =
722 			    hwread(vortex->mmio,
723 				   VORTEX_SRC_RTBASE + (ebx << 2));
724 			//printk(KERN_INFO "vortex: srcdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
725 			while ((edx & 0xf) != src) {
726 				if ((esi) > 0xf) {
727 					dev_warn(vortex->card->dev,
728 						 "srcdelWTD: error, lifeboat overflow\n");
729 					return 0;
730 				}
731 				esp14 = ebx;
732 				ebx = edx & 0xf;
733 				ebp = ebx << 2;
734 				edx =
735 				    hwread(vortex->mmio,
736 					   VORTEX_SRC_RTBASE + ebp);
737 				//printk(KERN_INFO "vortex: srcdelWTD: while addr=%x, val=%x\n", ebp, edx);
738 				esi++;
739 			}
740 			//7b30
741 			ebp = ebx << 2;
742 			if (edx & 0x10) {	/* Delete entry in between others */
743 				ebx = VORTEX_SRC_RTBASE + ((edx & 0xf) << 2);
744 				edx = hwread(vortex->mmio, ebx);
745 				//7b60
746 				hwwrite(vortex->mmio,
747 					VORTEX_SRC_RTBASE + ebp, edx);
748 				hwwrite(vortex->mmio, ebx, 0);
749 				//printk(KERN_INFO "vortex srcdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
750 			} else {	/* Delete last entry */
751 				//7b83
752 				if (esp14 == -1)
753 					hwwrite(vortex->mmio,
754 						VORTEX_SRC_CHNBASE +
755 						(ch << 2), esp18 & 0xef);
756 				else {
757 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
758 					hwwrite(vortex->mmio,
759 						VORTEX_SRC_RTBASE +
760 						(esp14 << 2), ebx);
761 					//printk(KERN_INFO"vortex srcdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
762 				}
763 				hwwrite(vortex->mmio,
764 					VORTEX_SRC_RTBASE + ebp, 0);
765 				return 1;
766 			}
767 		}
768 	} else {
769 		//7be0
770 		vortex_src_dis_sr(vortex, ch);
771 		hwwrite(vortex->mmio, ebp, 0);
772 	}
773 	return 1;
774 }
775 
776  /*FIFO*/
777 
778 static void
779 vortex_fifo_clearadbdata(vortex_t * vortex, int fifo, int x)
780 {
781 	for (x--; x >= 0; x--)
782 		hwwrite(vortex->mmio,
783 			VORTEX_FIFO_ADBDATA +
784 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
785 }
786 
787 #if 0
788 static void vortex_fifo_adbinitialize(vortex_t * vortex, int fifo, int j)
789 {
790 	vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
791 #ifdef CHIP_AU8820
792 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
793 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
794 #else
795 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
796 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
797 #endif
798 }
799 #endif
800 static void vortex_fifo_setadbvalid(vortex_t * vortex, int fifo, int en)
801 {
802 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
803 		(hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2)) &
804 		 0xffffffef) | ((1 & en) << 4) | FIFO_U1);
805 }
806 
807 static void
808 vortex_fifo_setadbctrl(vortex_t * vortex, int fifo, int stereo, int priority,
809 		       int empty, int valid, int f)
810 {
811 	int temp, lifeboat = 0;
812 	//int this_8[NR_ADB] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; /* position */
813 	int this_4 = 0x2;
814 	/* f seems priority related.
815 	 * CAsp4AdbDma::SetPriority is the only place that calls SetAdbCtrl with f set to 1
816 	 * every where else it is set to 0. It seems, however, that CAsp4AdbDma::SetPriority
817 	 * is never called, thus the f related bits remain a mystery for now.
818 	 */
819 	do {
820 		temp = hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
821 		if (lifeboat++ > 0xbb8) {
822 			dev_err(vortex->card->dev,
823 				"vortex_fifo_setadbctrl fail\n");
824 			break;
825 		}
826 	}
827 	while (temp & FIFO_RDONLY);
828 
829 	// AU8830 semes to take some special care about fifo content (data).
830 	// But i'm just to lazy to translate that :)
831 	if (valid) {
832 		if ((temp & FIFO_VALID) == 0) {
833 			//this_8[fifo] = 0;
834 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);	// this_4
835 #ifdef CHIP_AU8820
836 			temp = (this_4 & 0x1f) << 0xb;
837 #else
838 			temp = (this_4 & 0x3f) << 0xc;
839 #endif
840 			temp = (temp & 0xfffffffd) | ((stereo & 1) << 1);
841 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
842 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
843 			temp |= FIFO_U1;
844 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
845 #ifdef CHIP_AU8820
846 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
847 #endif
848 #ifdef CHIP_AU8830
849 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
850 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
851 #endif
852 #ifdef CHIP_AU8810
853 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
854 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
855 #endif
856 		}
857 	} else {
858 		if (temp & FIFO_VALID) {
859 #ifdef CHIP_AU8820
860 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
861 #endif
862 #ifdef CHIP_AU8830
863 			temp =
864 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
865 #endif
866 #ifdef CHIP_AU8810
867 			temp =
868 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
869 #endif
870 		} else
871 			/*if (this_8[fifo]) */
872 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
873 	}
874 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2), temp);
875 	hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
876 }
877 
878 #ifndef CHIP_AU8810
879 static void vortex_fifo_clearwtdata(vortex_t * vortex, int fifo, int x)
880 {
881 	if (x < 1)
882 		return;
883 	for (x--; x >= 0; x--)
884 		hwwrite(vortex->mmio,
885 			VORTEX_FIFO_WTDATA +
886 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
887 }
888 
889 static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j)
890 {
891 	vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
892 #ifdef CHIP_AU8820
893 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
894 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
895 #else
896 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
897 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
898 #endif
899 }
900 
901 static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en)
902 {
903 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
904 		(hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2)) &
905 		 0xffffffef) | ((en & 1) << 4) | FIFO_U1);
906 }
907 
908 static void
909 vortex_fifo_setwtctrl(vortex_t * vortex, int fifo, int ctrl, int priority,
910 		      int empty, int valid, int f)
911 {
912 	int temp = 0, lifeboat = 0;
913 	int this_4 = 2;
914 
915 	do {
916 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
917 		if (lifeboat++ > 0xbb8) {
918 			dev_err(vortex->card->dev,
919 				"vortex_fifo_setwtctrl fail\n");
920 			break;
921 		}
922 	}
923 	while (temp & FIFO_RDONLY);
924 
925 	if (valid) {
926 		if ((temp & FIFO_VALID) == 0) {
927 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);	// this_4
928 #ifdef CHIP_AU8820
929 			temp = (this_4 & 0x1f) << 0xb;
930 #else
931 			temp = (this_4 & 0x3f) << 0xc;
932 #endif
933 			temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
934 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
935 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
936 			temp |= FIFO_U1;
937 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
938 #ifdef CHIP_AU8820
939 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
940 #endif
941 #ifdef CHIP_AU8830
942 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
943 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
944 #endif
945 #ifdef CHIP_AU8810
946 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
947 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
948 #endif
949 		}
950 	} else {
951 		if (temp & FIFO_VALID) {
952 #ifdef CHIP_AU8820
953 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
954 #endif
955 #ifdef CHIP_AU8830
956 			temp =
957 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
958 #endif
959 #ifdef CHIP_AU8810
960 			temp =
961 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
962 #endif
963 		} else
964 			/*if (this_8[fifo]) */
965 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
966 	}
967 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
968 	hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
969 
970 /*
971     do {
972 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
973 		if (lifeboat++ > 0xbb8) {
974 			pr_err( "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
975 			break;
976 		}
977     } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
978 
979 
980 	if (valid) {
981 		if (temp & FIFO_VALID) {
982 			temp = 0x40000;
983 			//temp |= 0x08000000;
984 			//temp |= 0x10000000;
985 			//temp |= 0x04000000;
986 			//temp |= 0x00400000;
987 			temp |= 0x1c400000;
988 			temp &= 0xFFFFFFF3;
989 			temp &= 0xFFFFFFEF;
990 			temp |= (valid & 1) << 4;
991 			hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
992 			return;
993 		} else {
994 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
995 			return;
996 		}
997 	} else {
998 		temp &= 0xffffffef;
999 		temp |= 0x08000000;
1000 		temp |= 0x10000000;
1001 		temp |= 0x04000000;
1002 		temp |= 0x00400000;
1003 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1004 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
1005 		//((temp >> 6) & 0x3f)
1006 
1007 		priority = 0;
1008 		if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
1009 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
1010 		valid = 0xfb;
1011 		temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1012 		temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1013 		temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1014 		temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1015 		temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1016 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1017 	}
1018 
1019 	*/
1020 
1021 	/*
1022 	   temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1023 	   temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1024 	   temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1025 	   temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1026 	   temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1027 	   #ifdef FIFO_BITS
1028 	   temp = temp | FIFO_BITS | 40000;
1029 	   #endif
1030 	   // 0x1c440010, 0x1c400000
1031 	   hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1032 	 */
1033 }
1034 
1035 #endif
1036 static void vortex_fifo_init(vortex_t * vortex)
1037 {
1038 	int x;
1039 	u32 addr;
1040 
1041 	/* ADB DMA channels fifos. */
1042 	addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1043 	for (x = NR_ADB - 1; x >= 0; x--) {
1044 		hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1045 		if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1046 			dev_err(vortex->card->dev, "bad adb fifo reset!\n");
1047 		vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1048 		addr -= 4;
1049 	}
1050 
1051 #ifndef CHIP_AU8810
1052 	/* WT DMA channels fifos. */
1053 	addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1054 	for (x = NR_WT - 1; x >= 0; x--) {
1055 		hwwrite(vortex->mmio, addr, FIFO_U0);
1056 		if (hwread(vortex->mmio, addr) != FIFO_U0)
1057 			dev_err(vortex->card->dev,
1058 				"bad wt fifo reset (0x%08x, 0x%08x)!\n",
1059 				addr, hwread(vortex->mmio, addr));
1060 		vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1061 		addr -= 4;
1062 	}
1063 #endif
1064 	/* trigger... */
1065 #ifdef CHIP_AU8820
1066 	hwwrite(vortex->mmio, 0xf8c0, 0xd03);	//0x0843 0xd6b
1067 #else
1068 #ifdef CHIP_AU8830
1069 	hwwrite(vortex->mmio, 0x17000, 0x61);	/* wt a */
1070 	hwwrite(vortex->mmio, 0x17004, 0x61);	/* wt b */
1071 #endif
1072 	hwwrite(vortex->mmio, 0x17008, 0x61);	/* adb */
1073 #endif
1074 }
1075 
1076 /* ADBDMA */
1077 
1078 static void vortex_adbdma_init(vortex_t * vortex)
1079 {
1080 }
1081 
1082 static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1083 {
1084 	stream_t *dma = &vortex->dma_adb[adbdma];
1085 
1086 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1087 		dma->dma_ctrl);
1088 }
1089 
1090 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1091 {
1092 	stream_t *dma = &vortex->dma_adb[adbdma];
1093 	//hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1094 	hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1095 		sb << ((0xf - (adbdma & 0xf)) * 2));
1096 	dma->period_real = dma->period_virt = sb;
1097 }
1098 
1099 static void
1100 vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1101 			 int psize, int count)
1102 {
1103 	stream_t *dma = &vortex->dma_adb[adbdma];
1104 
1105 	dma->period_bytes = psize;
1106 	dma->nr_periods = count;
1107 
1108 	dma->cfg0 = 0;
1109 	dma->cfg1 = 0;
1110 	switch (count) {
1111 		/* Four or more pages */
1112 	default:
1113 	case 4:
1114 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1115 		hwwrite(vortex->mmio,
1116 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1117 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1118 		/* 3 pages */
1119 	case 3:
1120 		dma->cfg0 |= 0x12000000;
1121 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1122 		hwwrite(vortex->mmio,
1123 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1124 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1125 		/* 2 pages */
1126 	case 2:
1127 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1128 		hwwrite(vortex->mmio,
1129 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1130 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1131 		/* 1 page */
1132 	case 1:
1133 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1134 		hwwrite(vortex->mmio,
1135 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1136 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1137 		break;
1138 	}
1139 	/*
1140 	pr_debug( "vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n",
1141 	       dma->cfg0, dma->cfg1);
1142 	*/
1143 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1144 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1145 
1146 	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1147 	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1148 }
1149 
1150 static void
1151 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1152 		      int fmt, int stereo, u32 offset)
1153 {
1154 	stream_t *dma = &vortex->dma_adb[adbdma];
1155 
1156 	dma->dma_unknown = stereo;
1157 	dma->dma_ctrl =
1158 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1159 	/* Enable PCMOUT interrupts. */
1160 	dma->dma_ctrl =
1161 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1162 
1163 	dma->dma_ctrl =
1164 	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1165 	dma->dma_ctrl =
1166 	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1167 
1168 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1169 		dma->dma_ctrl);
1170 	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1171 }
1172 
1173 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1174 {
1175 	stream_t *dma = &vortex->dma_adb[adbdma];
1176 	int page, p, pp, delta, i;
1177 
1178 	page =
1179 	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1180 	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1181 	if (dma->nr_periods >= 4)
1182 		delta = (page - dma->period_real) & 3;
1183 	else {
1184 		delta = (page - dma->period_real);
1185 		if (delta < 0)
1186 			delta += dma->nr_periods;
1187 	}
1188 	if (delta == 0)
1189 		return 0;
1190 
1191 	/* refresh hw page table */
1192 	if (dma->nr_periods > 4) {
1193 		for (i = 0; i < delta; i++) {
1194 			/* p: audio buffer page index */
1195 			p = dma->period_virt + i + 4;
1196 			if (p >= dma->nr_periods)
1197 				p -= dma->nr_periods;
1198 			/* pp: hardware DMA page index. */
1199 			pp = dma->period_real + i;
1200 			if (pp >= 4)
1201 				pp -= 4;
1202 			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1203 			hwwrite(vortex->mmio,
1204 				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1205 				snd_pcm_sgbuf_get_addr(dma->substream,
1206 				dma->period_bytes * p));
1207 			/* Force write thru cache. */
1208 			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1209 			       (((adbdma << 2) + pp) << 2));
1210 		}
1211 	}
1212 	dma->period_virt += delta;
1213 	dma->period_real = page;
1214 	if (dma->period_virt >= dma->nr_periods)
1215 		dma->period_virt -= dma->nr_periods;
1216 	if (delta != 1)
1217 		dev_info(vortex->card->dev,
1218 			 "%d virt=%d, real=%d, delta=%d\n",
1219 			 adbdma, dma->period_virt, dma->period_real, delta);
1220 
1221 	return delta;
1222 }
1223 
1224 
1225 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1226 	stream_t *dma = &vortex->dma_adb[adbdma];
1227 	int p, pp, i;
1228 
1229 	/* refresh hw page table */
1230 	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1231 		/* p: audio buffer page index */
1232 		p = dma->period_virt + i;
1233 		if (p >= dma->nr_periods)
1234 			p -= dma->nr_periods;
1235 		/* pp: hardware DMA page index. */
1236 		pp = dma->period_real + i;
1237 		if (dma->nr_periods < 4) {
1238 			if (pp >= dma->nr_periods)
1239 				pp -= dma->nr_periods;
1240 		}
1241 		else {
1242 			if (pp >= 4)
1243 				pp -= 4;
1244 		}
1245 		hwwrite(vortex->mmio,
1246 			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1247 			snd_pcm_sgbuf_get_addr(dma->substream,
1248 					       dma->period_bytes * p));
1249 		/* Force write thru cache. */
1250 		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1251 	}
1252 }
1253 
1254 static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1255 {
1256 	stream_t *dma = &vortex->dma_adb[adbdma];
1257 	int temp, page, delta;
1258 
1259 	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1260 	page = (temp & ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1261 	if (dma->nr_periods >= 4)
1262 		delta = (page - dma->period_real) & 3;
1263 	else {
1264 		delta = (page - dma->period_real);
1265 		if (delta < 0)
1266 			delta += dma->nr_periods;
1267 	}
1268 	return (dma->period_virt + delta) * dma->period_bytes
1269 		+ (temp & (dma->period_bytes - 1));
1270 }
1271 
1272 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1273 {
1274 	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1275 	stream_t *dma = &vortex->dma_adb[adbdma];
1276 
1277 	switch (dma->fifo_status) {
1278 	case FIFO_START:
1279 		vortex_fifo_setadbvalid(vortex, adbdma,
1280 					dma->fifo_enabled ? 1 : 0);
1281 		break;
1282 	case FIFO_STOP:
1283 		this_8 = 1;
1284 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1285 			dma->dma_ctrl);
1286 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1287 				       this_4, this_8,
1288 				       dma->fifo_enabled ? 1 : 0, 0);
1289 		break;
1290 	case FIFO_PAUSE:
1291 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1292 				       this_4, this_8,
1293 				       dma->fifo_enabled ? 1 : 0, 0);
1294 		break;
1295 	}
1296 	dma->fifo_status = FIFO_START;
1297 }
1298 
1299 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1300 {
1301 	stream_t *dma = &vortex->dma_adb[adbdma];
1302 
1303 	int this_8 = 1, this_4 = 0;
1304 	switch (dma->fifo_status) {
1305 	case FIFO_STOP:
1306 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1307 			dma->dma_ctrl);
1308 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1309 				       this_4, this_8,
1310 				       dma->fifo_enabled ? 1 : 0, 0);
1311 		break;
1312 	case FIFO_PAUSE:
1313 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1314 				       this_4, this_8,
1315 				       dma->fifo_enabled ? 1 : 0, 0);
1316 		break;
1317 	}
1318 	dma->fifo_status = FIFO_START;
1319 }
1320 
1321 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1322 {
1323 	stream_t *dma = &vortex->dma_adb[adbdma];
1324 
1325 	int this_8 = 0, this_4 = 0;
1326 	switch (dma->fifo_status) {
1327 	case FIFO_START:
1328 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1329 				       this_4, this_8, 0, 0);
1330 		break;
1331 	case FIFO_STOP:
1332 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1333 			dma->dma_ctrl);
1334 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1335 				       this_4, this_8, 0, 0);
1336 		break;
1337 	}
1338 	dma->fifo_status = FIFO_PAUSE;
1339 }
1340 
1341 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1342 {
1343 	stream_t *dma = &vortex->dma_adb[adbdma];
1344 
1345 	int this_4 = 0, this_8 = 0;
1346 	if (dma->fifo_status == FIFO_START)
1347 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1348 				       this_4, this_8, 0, 0);
1349 	else if (dma->fifo_status == FIFO_STOP)
1350 		return;
1351 	dma->fifo_status = FIFO_STOP;
1352 	dma->fifo_enabled = 0;
1353 }
1354 
1355 /* WTDMA */
1356 
1357 #ifndef CHIP_AU8810
1358 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1359 {
1360 	//int this_7c=dma_ctrl;
1361 	stream_t *dma = &vortex->dma_wt[wtdma];
1362 
1363 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1364 }
1365 
1366 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1367 {
1368 	stream_t *dma = &vortex->dma_wt[wtdma];
1369 	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1370 	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1371 		sb << ((0xf - (wtdma & 0xf)) * 2));
1372 	dma->period_real = dma->period_virt = sb;
1373 }
1374 
1375 static void
1376 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1377 			int psize, int count)
1378 {
1379 	stream_t *dma = &vortex->dma_wt[wtdma];
1380 
1381 	dma->period_bytes = psize;
1382 	dma->nr_periods = count;
1383 
1384 	dma->cfg0 = 0;
1385 	dma->cfg1 = 0;
1386 	switch (count) {
1387 		/* Four or more pages */
1388 	default:
1389 	case 4:
1390 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1391 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1392 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1393 		/* 3 pages */
1394 	case 3:
1395 		dma->cfg0 |= 0x12000000;
1396 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1397 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1398 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1399 		/* 2 pages */
1400 	case 2:
1401 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1402 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1403 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1404 		/* 1 page */
1405 	case 1:
1406 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1407 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1408 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1409 		break;
1410 	}
1411 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1412 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1413 
1414 	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1415 	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1416 }
1417 
1418 static void
1419 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1420 		     /*int e, */ u32 offset)
1421 {
1422 	stream_t *dma = &vortex->dma_wt[wtdma];
1423 
1424 	//dma->this_08 = e;
1425 	dma->dma_unknown = d;
1426 	dma->dma_ctrl = 0;
1427 	dma->dma_ctrl =
1428 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1429 	/* PCMOUT interrupt */
1430 	dma->dma_ctrl =
1431 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1432 	/* Always playback. */
1433 	dma->dma_ctrl |= (1 << DIR_SHIFT);
1434 	/* Audio Format */
1435 	dma->dma_ctrl =
1436 	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1437 	/* Write into hardware */
1438 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1439 }
1440 
1441 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1442 {
1443 	stream_t *dma = &vortex->dma_wt[wtdma];
1444 	int page, p, pp, delta, i;
1445 
1446 	page =
1447 	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2))
1448 	     >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1449 	if (dma->nr_periods >= 4)
1450 		delta = (page - dma->period_real) & 3;
1451 	else {
1452 		delta = (page - dma->period_real);
1453 		if (delta < 0)
1454 			delta += dma->nr_periods;
1455 	}
1456 	if (delta == 0)
1457 		return 0;
1458 
1459 	/* refresh hw page table */
1460 	if (dma->nr_periods > 4) {
1461 		for (i = 0; i < delta; i++) {
1462 			/* p: audio buffer page index */
1463 			p = dma->period_virt + i + 4;
1464 			if (p >= dma->nr_periods)
1465 				p -= dma->nr_periods;
1466 			/* pp: hardware DMA page index. */
1467 			pp = dma->period_real + i;
1468 			if (pp >= 4)
1469 				pp -= 4;
1470 			hwwrite(vortex->mmio,
1471 				VORTEX_WTDMA_BUFBASE +
1472 				(((wtdma << 2) + pp) << 2),
1473 				snd_pcm_sgbuf_get_addr(dma->substream,
1474 						       dma->period_bytes * p));
1475 			/* Force write thru cache. */
1476 			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1477 			       (((wtdma << 2) + pp) << 2));
1478 		}
1479 	}
1480 	dma->period_virt += delta;
1481 	if (dma->period_virt >= dma->nr_periods)
1482 		dma->period_virt -= dma->nr_periods;
1483 	dma->period_real = page;
1484 
1485 	if (delta != 1)
1486 		dev_warn(vortex->card->dev, "wt virt = %d, delta = %d\n",
1487 			 dma->period_virt, delta);
1488 
1489 	return delta;
1490 }
1491 
1492 #if 0
1493 static void
1494 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1495 {
1496 	int temp;
1497 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1498 	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1499 	*pos = temp & POS_MASK;
1500 }
1501 
1502 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1503 {
1504 	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1505 		 POS_SHIFT) & POS_MASK);
1506 }
1507 #endif
1508 static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1509 {
1510 	stream_t *dma = &vortex->dma_wt[wtdma];
1511 	int temp;
1512 
1513 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1514 	temp = (dma->period_virt * dma->period_bytes) + (temp & (dma->period_bytes - 1));
1515 	return temp;
1516 }
1517 
1518 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1519 {
1520 	stream_t *dma = &vortex->dma_wt[wtdma];
1521 	int this_8 = 0, this_4 = 0;
1522 
1523 	switch (dma->fifo_status) {
1524 	case FIFO_START:
1525 		vortex_fifo_setwtvalid(vortex, wtdma,
1526 				       dma->fifo_enabled ? 1 : 0);
1527 		break;
1528 	case FIFO_STOP:
1529 		this_8 = 1;
1530 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1531 			dma->dma_ctrl);
1532 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1533 				      this_4, this_8,
1534 				      dma->fifo_enabled ? 1 : 0, 0);
1535 		break;
1536 	case FIFO_PAUSE:
1537 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1538 				      this_4, this_8,
1539 				      dma->fifo_enabled ? 1 : 0, 0);
1540 		break;
1541 	}
1542 	dma->fifo_status = FIFO_START;
1543 }
1544 
1545 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1546 {
1547 	stream_t *dma = &vortex->dma_wt[wtdma];
1548 
1549 	int this_8 = 0, this_4 = 0;
1550 	switch (dma->fifo_status) {
1551 	case FIFO_STOP:
1552 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1553 			dma->dma_ctrl);
1554 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1555 				      this_4, this_8,
1556 				      dma->fifo_enabled ? 1 : 0, 0);
1557 		break;
1558 	case FIFO_PAUSE:
1559 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1560 				      this_4, this_8,
1561 				      dma->fifo_enabled ? 1 : 0, 0);
1562 		break;
1563 	}
1564 	dma->fifo_status = FIFO_START;
1565 }
1566 
1567 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1568 {
1569 	stream_t *dma = &vortex->dma_wt[wtdma];
1570 
1571 	int this_8 = 0, this_4 = 0;
1572 	switch (dma->fifo_status) {
1573 	case FIFO_START:
1574 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1575 				      this_4, this_8, 0, 0);
1576 		break;
1577 	case FIFO_STOP:
1578 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1579 			dma->dma_ctrl);
1580 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1581 				      this_4, this_8, 0, 0);
1582 		break;
1583 	}
1584 	dma->fifo_status = FIFO_PAUSE;
1585 }
1586 
1587 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1588 {
1589 	stream_t *dma = &vortex->dma_wt[wtdma];
1590 
1591 	int this_4 = 0, this_8 = 0;
1592 	if (dma->fifo_status == FIFO_START)
1593 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1594 				      this_4, this_8, 0, 0);
1595 	else if (dma->fifo_status == FIFO_STOP)
1596 		return;
1597 	dma->fifo_status = FIFO_STOP;
1598 	dma->fifo_enabled = 0;
1599 }
1600 
1601 #endif
1602 /* ADB Routes */
1603 
1604 typedef int ADBRamLink;
1605 static void vortex_adb_init(vortex_t * vortex)
1606 {
1607 	int i;
1608 	/* it looks like we are writing more than we need to...
1609 	 * if we write what we are supposed to it breaks things... */
1610 	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1611 	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1612 		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1613 			hwread(vortex->mmio,
1614 			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1615 	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1616 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1617 			hwread(vortex->mmio,
1618 			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1619 	}
1620 }
1621 
1622 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1623 {
1624 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1625 		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1626 }
1627 
1628 static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1629 {
1630 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1631 		hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1632 }
1633 
1634 static void
1635 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1636 		     ADBRamLink * route, int rnum)
1637 {
1638 	int temp, prev, lifeboat = 0;
1639 
1640 	if ((rnum <= 0) || (route == NULL))
1641 		return;
1642 	/* Write last routes. */
1643 	rnum--;
1644 	hwwrite(vortex->mmio,
1645 		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1646 		ROUTE_MASK);
1647 	while (rnum > 0) {
1648 		hwwrite(vortex->mmio,
1649 			VORTEX_ADB_RTBASE +
1650 			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1651 		rnum--;
1652 	}
1653 	/* Write first route. */
1654 	temp =
1655 	    hwread(vortex->mmio,
1656 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1657 	if (temp == ADB_MASK) {
1658 		/* First entry on this channel. */
1659 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1660 			route[0]);
1661 		vortex_adb_en_sr(vortex, channel);
1662 		return;
1663 	}
1664 	/* Not first entry on this channel. Need to link. */
1665 	do {
1666 		prev = temp;
1667 		temp =
1668 		    hwread(vortex->mmio,
1669 			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1670 		if ((lifeboat++) > ADB_MASK) {
1671 			dev_err(vortex->card->dev,
1672 				"vortex_adb_addroutes: unending route! 0x%x\n",
1673 				*route);
1674 			return;
1675 		}
1676 	}
1677 	while (temp != ADB_MASK);
1678 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1679 }
1680 
1681 static void
1682 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1683 		     ADBRamLink route0, ADBRamLink route1)
1684 {
1685 	int temp, lifeboat = 0, prev;
1686 
1687 	/* Find route. */
1688 	temp =
1689 	    hwread(vortex->mmio,
1690 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1691 	if (temp == (route0 & ADB_MASK)) {
1692 		temp =
1693 		    hwread(vortex->mmio,
1694 			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1695 		if ((temp & ADB_MASK) == ADB_MASK)
1696 			vortex_adb_dis_sr(vortex, channel);
1697 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1698 			temp);
1699 		return;
1700 	}
1701 	do {
1702 		prev = temp;
1703 		temp =
1704 		    hwread(vortex->mmio,
1705 			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1706 		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1707 			dev_err(vortex->card->dev,
1708 				"vortex_adb_delroutes: route not found! 0x%x\n",
1709 				route0);
1710 			return;
1711 		}
1712 	}
1713 	while (temp != (route0 & ADB_MASK));
1714 	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1715 	if ((temp & ADB_MASK) == route1)
1716 		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1717 	/* Make bridge over deleted route. */
1718 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1719 }
1720 
1721 static void
1722 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1723 	     unsigned char source, unsigned char dest)
1724 {
1725 	ADBRamLink route;
1726 
1727 	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1728 	if (en) {
1729 		vortex_adb_addroutes(vortex, channel, &route, 1);
1730 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1731 		    && (source >= OFFSET_SRCOUT))
1732 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1733 					  channel);
1734 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1735 			 && (source >= OFFSET_MIXOUT))
1736 			vortex_mixer_addWTD(vortex,
1737 					    (source - OFFSET_MIXOUT), channel);
1738 	} else {
1739 		vortex_adb_delroutes(vortex, channel, route, route);
1740 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1741 		    && (source >= OFFSET_SRCOUT))
1742 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1743 					  channel);
1744 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1745 			 && (source >= OFFSET_MIXOUT))
1746 			vortex_mixer_delWTD(vortex,
1747 					    (source - OFFSET_MIXOUT), channel);
1748 	}
1749 }
1750 
1751 #if 0
1752 static void
1753 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1754 	      unsigned char source, unsigned char dest0, unsigned char dest1)
1755 {
1756 	ADBRamLink route[2];
1757 
1758 	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1759 	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1760 
1761 	if (en) {
1762 		vortex_adb_addroutes(vortex, channel, route, 2);
1763 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1764 		    && (source >= (OFFSET_SRCOUT)))
1765 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1766 					  channel);
1767 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1768 			 && (source >= (OFFSET_MIXOUT)))
1769 			vortex_mixer_addWTD(vortex,
1770 					    (source - OFFSET_MIXOUT), channel);
1771 	} else {
1772 		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1773 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1774 		    && (source >= (OFFSET_SRCOUT)))
1775 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1776 					  channel);
1777 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1778 			 && (source >= (OFFSET_MIXOUT)))
1779 			vortex_mixer_delWTD(vortex,
1780 					    (source - OFFSET_MIXOUT), channel);
1781 	}
1782 }
1783 
1784 #endif
1785 /* Route two sources to same target. Sources must be of same class !!! */
1786 static void
1787 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1788 		unsigned char source0, unsigned char source1,
1789 		unsigned char dest)
1790 {
1791 	ADBRamLink route[2];
1792 
1793 	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1794 	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1795 
1796 	if (dest < 0x10)
1797 		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1798 
1799 	if (en) {
1800 		vortex_adb_addroutes(vortex, ch, route, 2);
1801 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1802 		    && (source0 >= OFFSET_SRCOUT)) {
1803 			vortex_src_addWTD(vortex,
1804 					  (source0 - OFFSET_SRCOUT), ch);
1805 			vortex_src_addWTD(vortex,
1806 					  (source1 - OFFSET_SRCOUT), ch);
1807 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1808 			   && (source0 >= OFFSET_MIXOUT)) {
1809 			vortex_mixer_addWTD(vortex,
1810 					    (source0 - OFFSET_MIXOUT), ch);
1811 			vortex_mixer_addWTD(vortex,
1812 					    (source1 - OFFSET_MIXOUT), ch);
1813 		}
1814 	} else {
1815 		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1816 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1817 		    && (source0 >= OFFSET_SRCOUT)) {
1818 			vortex_src_delWTD(vortex,
1819 					  (source0 - OFFSET_SRCOUT), ch);
1820 			vortex_src_delWTD(vortex,
1821 					  (source1 - OFFSET_SRCOUT), ch);
1822 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1823 			   && (source0 >= OFFSET_MIXOUT)) {
1824 			vortex_mixer_delWTD(vortex,
1825 					    (source0 - OFFSET_MIXOUT), ch);
1826 			vortex_mixer_delWTD(vortex,
1827 					    (source1 - OFFSET_MIXOUT), ch);
1828 		}
1829 	}
1830 }
1831 
1832 /* Connection stuff */
1833 
1834 // Connect adbdma to src('s).
1835 static void
1836 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1837 			     unsigned char adbdma, unsigned char src)
1838 {
1839 	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1840 }
1841 
1842 // Connect SRC to mixin.
1843 static void
1844 vortex_connection_src_mixin(vortex_t * vortex, int en,
1845 			    unsigned char channel, unsigned char src,
1846 			    unsigned char mixin)
1847 {
1848 	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1849 }
1850 
1851 // Connect mixin with mix output.
1852 static void
1853 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1854 			    unsigned char mix, int a)
1855 {
1856 	if (en) {
1857 		vortex_mix_enableinput(vortex, mix, mixin);
1858 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1859 	} else
1860 		vortex_mix_disableinput(vortex, mix, mixin, a);
1861 }
1862 
1863 // Connect absolut address to mixin.
1864 static void
1865 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1866 			    unsigned char channel, unsigned char source,
1867 			    unsigned char mixin)
1868 {
1869 	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1870 }
1871 
1872 static void
1873 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1874 			     unsigned char src, unsigned char adbdma)
1875 {
1876 	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1877 }
1878 
1879 static void
1880 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1881 				 unsigned char ch, unsigned char src0,
1882 				 unsigned char src1, unsigned char adbdma)
1883 {
1884 
1885 	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1886 			ADB_DMA(adbdma));
1887 }
1888 
1889 // mix to absolut address.
1890 static void
1891 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1892 			  unsigned char mix, unsigned char dest)
1893 {
1894 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1895 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1896 }
1897 
1898 // mixer to src.
1899 static void
1900 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1901 			  unsigned char mix, unsigned char src)
1902 {
1903 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1904 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1905 }
1906 
1907 #if 0
1908 static void
1909 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1910 				 unsigned char channel,
1911 				 unsigned char adbdma, unsigned char src0,
1912 				 unsigned char src1)
1913 {
1914 	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1915 		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1916 }
1917 
1918 // Connect two mix to AdbDma.
1919 static void
1920 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1921 				 unsigned char ch, unsigned char mix0,
1922 				 unsigned char mix1, unsigned char adbdma)
1923 {
1924 
1925 	ADBRamLink routes[2];
1926 	routes[0] =
1927 	    (((mix0 +
1928 	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1929 	routes[1] =
1930 	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1931 								   0x20) &
1932 								  ADB_MASK);
1933 	if (en) {
1934 		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1935 		vortex_mixer_addWTD(vortex, mix0, ch);
1936 		vortex_mixer_addWTD(vortex, mix1, ch);
1937 	} else {
1938 		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1939 		vortex_mixer_delWTD(vortex, mix0, ch);
1940 		vortex_mixer_delWTD(vortex, mix1, ch);
1941 	}
1942 }
1943 #endif
1944 
1945 /* CODEC connect. */
1946 
1947 static void
1948 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1949 {
1950 #ifdef CHIP_AU8820
1951 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1952 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1953 #else
1954 #if 1
1955 	// Connect front channels through EQ.
1956 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1957 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1958 	/* Lower volume, since EQ has some gain. */
1959 	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1960 	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1961 	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1962 	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1963 
1964 	/* Check if reg 0x28 has SDAC bit set. */
1965 	if (VORTEX_IS_QUAD(vortex)) {
1966 		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1967 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1968 					  ADB_CODECOUT(0 + 4));
1969 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1970 					  ADB_CODECOUT(1 + 4));
1971 		/* pr_debug( "SDAC detected "); */
1972 	}
1973 #else
1974 	// Use plain direct output to codec.
1975 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1976 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1977 #endif
1978 #endif
1979 }
1980 
1981 static void
1982 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1983 			unsigned char mixin1)
1984 {
1985 	/*
1986 	   Enable: 0x1, 0x1
1987 	   Channel: 0x11, 0x11
1988 	   ADB Source address: 0x48, 0x49
1989 	   Destination Asp4Topology_0x9c,0x98
1990 	 */
1991 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1992 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1993 }
1994 
1995 // Higher level ADB audio path (de)allocator.
1996 
1997 /* Resource manager */
1998 static int resnum[VORTEX_RESOURCE_LAST] =
1999     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
2000 /*
2001  Checkout/Checkin resource of given type.
2002  resmap: resource map to be used. If NULL means that we want to allocate
2003  a DMA resource (root of all other resources of a dma channel).
2004  out: Mean checkout if != 0. Else mean Checkin resource.
2005  restype: Indicates type of resource to be checked in or out.
2006 */
2007 static char
2008 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2009 {
2010 	int i, qty = resnum[restype], resinuse = 0;
2011 
2012 	if (out) {
2013 		/* Gather used resources by all streams. */
2014 		for (i = 0; i < NR_ADB; i++) {
2015 			resinuse |= vortex->dma_adb[i].resources[restype];
2016 		}
2017 		resinuse |= vortex->fixed_res[restype];
2018 		/* Find and take free resource. */
2019 		for (i = 0; i < qty; i++) {
2020 			if ((resinuse & (1 << i)) == 0) {
2021 				if (resmap != NULL)
2022 					resmap[restype] |= (1 << i);
2023 				else
2024 					vortex->dma_adb[i].resources[restype] |= (1 << i);
2025 				/*
2026 				pr_debug(
2027 				       "vortex: ResManager: type %d out %d\n",
2028 				       restype, i);
2029 				*/
2030 				return i;
2031 			}
2032 		}
2033 	} else {
2034 		if (resmap == NULL)
2035 			return -EINVAL;
2036 		/* Checkin first resource of type restype. */
2037 		for (i = 0; i < qty; i++) {
2038 			if (resmap[restype] & (1 << i)) {
2039 				resmap[restype] &= ~(1 << i);
2040 				/*
2041 				pr_debug(
2042 				       "vortex: ResManager: type %d in %d\n",
2043 				       restype, i);
2044 				*/
2045 				return i;
2046 			}
2047 		}
2048 	}
2049 	dev_err(vortex->card->dev,
2050 		"FATAL: ResManager: resource type %d exhausted.\n",
2051 		restype);
2052 	return -ENOMEM;
2053 }
2054 
2055 /* Default Connections  */
2056 
2057 static void vortex_connect_default(vortex_t * vortex, int en)
2058 {
2059 	// Connect AC97 codec.
2060 	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2061 				  VORTEX_RESOURCE_MIXOUT);
2062 	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2063 				  VORTEX_RESOURCE_MIXOUT);
2064 	if (VORTEX_IS_QUAD(vortex)) {
2065 		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2066 					  VORTEX_RESOURCE_MIXOUT);
2067 		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2068 					  VORTEX_RESOURCE_MIXOUT);
2069 	}
2070 	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2071 
2072 	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2073 				  VORTEX_RESOURCE_MIXIN);
2074 	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2075 				  VORTEX_RESOURCE_MIXIN);
2076 	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2077 
2078 	// Connect SPDIF
2079 #ifndef CHIP_AU8820
2080 	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2081 				  VORTEX_RESOURCE_MIXOUT);
2082 	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2083 				  VORTEX_RESOURCE_MIXOUT);
2084 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2085 				  ADB_SPDIFOUT(0));
2086 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2087 				  ADB_SPDIFOUT(1));
2088 #endif
2089 	// Connect WT
2090 #ifndef CHIP_AU8810
2091 	vortex_wt_connect(vortex, en);
2092 #endif
2093 	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2094 #ifndef CHIP_AU8820
2095 	vortex_Vort3D_connect(vortex, en);
2096 #endif
2097 	// Connect I2S
2098 
2099 	// Connect DSP interface for SQ3500 turbo (not here i think...)
2100 
2101 	// Connect AC98 modem codec
2102 
2103 }
2104 
2105 /*
2106   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2107   are deallocated.
2108   dma: DMA engine routes to be deallocated when dma >= 0.
2109   nr_ch: Number of channels to be de/allocated.
2110   dir: direction of stream. Uses same values as substream->stream.
2111   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2112   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2113 */
2114 static int
2115 vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
2116 			int type, int subdev)
2117 {
2118 	stream_t *stream;
2119 	int i, en;
2120 	struct pcm_vol *p;
2121 
2122 	if (dma >= 0) {
2123 		en = 0;
2124 		vortex_adb_checkinout(vortex,
2125 				      vortex->dma_adb[dma].resources, en,
2126 				      VORTEX_RESOURCE_DMA);
2127 	} else {
2128 		en = 1;
2129 		if ((dma =
2130 		     vortex_adb_checkinout(vortex, NULL, en,
2131 					   VORTEX_RESOURCE_DMA)) < 0)
2132 			return -EBUSY;
2133 	}
2134 
2135 	stream = &vortex->dma_adb[dma];
2136 	stream->dma = dma;
2137 	stream->dir = dir;
2138 	stream->type = type;
2139 
2140 	/* PLAYBACK ROUTES. */
2141 	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2142 		int src[4], mix[4], ch_top;
2143 #ifndef CHIP_AU8820
2144 		int a3d = 0;
2145 #endif
2146 		/* Get SRC and MIXER hardware resources. */
2147 		if (stream->type != VORTEX_PCM_SPDIF) {
2148 			for (i = 0; i < nr_ch; i++) {
2149 				if ((src[i] = vortex_adb_checkinout(vortex,
2150 							   stream->resources, en,
2151 							   VORTEX_RESOURCE_SRC)) < 0) {
2152 					memset(stream->resources, 0,
2153 					       sizeof(stream->resources));
2154 					return -EBUSY;
2155 				}
2156 				if (stream->type != VORTEX_PCM_A3D) {
2157 					if ((mix[i] = vortex_adb_checkinout(vortex,
2158 								   stream->resources,
2159 								   en,
2160 								   VORTEX_RESOURCE_MIXIN)) < 0) {
2161 						memset(stream->resources,
2162 						       0,
2163 						       sizeof(stream->resources));
2164 						return -EBUSY;
2165 					}
2166 				}
2167 			}
2168 		}
2169 #ifndef CHIP_AU8820
2170 		if (stream->type == VORTEX_PCM_A3D) {
2171 			if ((a3d =
2172 			     vortex_adb_checkinout(vortex,
2173 						   stream->resources, en,
2174 						   VORTEX_RESOURCE_A3D)) < 0) {
2175 				memset(stream->resources, 0,
2176 				       sizeof(stream->resources));
2177 				dev_err(vortex->card->dev,
2178 					"out of A3D sources. Sorry\n");
2179 				return -EBUSY;
2180 			}
2181 			/* (De)Initialize A3D hardware source. */
2182 			vortex_Vort3D_InitializeSource(&vortex->a3d[a3d], en,
2183 						       vortex);
2184 		}
2185 		/* Make SPDIF out exclusive to "spdif" device when in use. */
2186 		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2187 			vortex_route(vortex, 0, 0x14,
2188 				     ADB_MIXOUT(vortex->mixspdif[0]),
2189 				     ADB_SPDIFOUT(0));
2190 			vortex_route(vortex, 0, 0x14,
2191 				     ADB_MIXOUT(vortex->mixspdif[1]),
2192 				     ADB_SPDIFOUT(1));
2193 		}
2194 #endif
2195 		/* Make playback routes. */
2196 		for (i = 0; i < nr_ch; i++) {
2197 			if (stream->type == VORTEX_PCM_ADB) {
2198 				vortex_connection_adbdma_src(vortex, en,
2199 							     src[nr_ch - 1],
2200 							     dma,
2201 							     src[i]);
2202 				vortex_connection_src_mixin(vortex, en,
2203 							    0x11, src[i],
2204 							    mix[i]);
2205 				vortex_connection_mixin_mix(vortex, en,
2206 							    mix[i],
2207 							    MIX_PLAYB(i), 0);
2208 #ifndef CHIP_AU8820
2209 				vortex_connection_mixin_mix(vortex, en,
2210 							    mix[i],
2211 							    MIX_SPDIF(i % 2), 0);
2212 				vortex_mix_setinputvolumebyte(vortex,
2213 							      MIX_SPDIF(i % 2),
2214 							      mix[i],
2215 							      MIX_DEFIGAIN);
2216 #endif
2217 			}
2218 #ifndef CHIP_AU8820
2219 			if (stream->type == VORTEX_PCM_A3D) {
2220 				vortex_connection_adbdma_src(vortex, en,
2221 							     src[nr_ch - 1],
2222 								 dma,
2223 							     src[i]);
2224 				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2225 				/* XTalk test. */
2226 				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2227 				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2228 			}
2229 			if (stream->type == VORTEX_PCM_SPDIF)
2230 				vortex_route(vortex, en, 0x14,
2231 					     ADB_DMA(stream->dma),
2232 					     ADB_SPDIFOUT(i));
2233 #endif
2234 		}
2235 		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2236 			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2237 			for (i = nr_ch; i < ch_top; i++) {
2238 				vortex_connection_mixin_mix(vortex, en,
2239 							    mix[i % nr_ch],
2240 							    MIX_PLAYB(i), 0);
2241 #ifndef CHIP_AU8820
2242 				vortex_connection_mixin_mix(vortex, en,
2243 							    mix[i % nr_ch],
2244 							    MIX_SPDIF(i % 2),
2245 								0);
2246 				vortex_mix_setinputvolumebyte(vortex,
2247 							      MIX_SPDIF(i % 2),
2248 							      mix[i % nr_ch],
2249 							      MIX_DEFIGAIN);
2250 #endif
2251 			}
2252 			if (stream->type == VORTEX_PCM_ADB && en) {
2253 				p = &vortex->pcm_vol[subdev];
2254 				p->dma = dma;
2255 				for (i = 0; i < nr_ch; i++)
2256 					p->mixin[i] = mix[i];
2257 				for (i = 0; i < ch_top; i++)
2258 					p->vol[i] = 0;
2259 			}
2260 		}
2261 #ifndef CHIP_AU8820
2262 		else {
2263 			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2264 				vortex_route(vortex, en, 0x14,
2265 					     ADB_DMA(stream->dma),
2266 					     ADB_SPDIFOUT(1));
2267 		}
2268 		/* Reconnect SPDIF out when "spdif" device is down. */
2269 		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2270 			vortex_route(vortex, 1, 0x14,
2271 				     ADB_MIXOUT(vortex->mixspdif[0]),
2272 				     ADB_SPDIFOUT(0));
2273 			vortex_route(vortex, 1, 0x14,
2274 				     ADB_MIXOUT(vortex->mixspdif[1]),
2275 				     ADB_SPDIFOUT(1));
2276 		}
2277 #endif
2278 	/* CAPTURE ROUTES. */
2279 	} else {
2280 		int src[2], mix[2];
2281 
2282 		if (nr_ch < 1)
2283 			return -EINVAL;
2284 
2285 		/* Get SRC and MIXER hardware resources. */
2286 		for (i = 0; i < nr_ch; i++) {
2287 			if ((mix[i] =
2288 			     vortex_adb_checkinout(vortex,
2289 						   stream->resources, en,
2290 						   VORTEX_RESOURCE_MIXOUT))
2291 			    < 0) {
2292 				memset(stream->resources, 0,
2293 				       sizeof(stream->resources));
2294 				return -EBUSY;
2295 			}
2296 			if ((src[i] =
2297 			     vortex_adb_checkinout(vortex,
2298 						   stream->resources, en,
2299 						   VORTEX_RESOURCE_SRC)) < 0) {
2300 				memset(stream->resources, 0,
2301 				       sizeof(stream->resources));
2302 				return -EBUSY;
2303 			}
2304 		}
2305 
2306 		/* Make capture routes. */
2307 		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2308 		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2309 		if (nr_ch == 1) {
2310 			vortex_connection_mixin_mix(vortex, en,
2311 						    MIX_CAPT(1), mix[0], 0);
2312 			vortex_connection_src_adbdma(vortex, en,
2313 						     src[0],
2314 						     src[0], dma);
2315 		} else {
2316 			vortex_connection_mixin_mix(vortex, en,
2317 						    MIX_CAPT(1), mix[1], 0);
2318 			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2319 						  src[1]);
2320 			vortex_connection_src_src_adbdma(vortex, en,
2321 							 src[1], src[0],
2322 							 src[1], dma);
2323 		}
2324 	}
2325 	vortex->dma_adb[dma].nr_ch = nr_ch;
2326 
2327 #if 0
2328 	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2329 	if (nr_ch < 4) {
2330 		/* Copy stereo to rear channel (surround) */
2331 		snd_ac97_write_cache(vortex->codec,
2332 				     AC97_SIGMATEL_DAC2INVERT,
2333 				     snd_ac97_read(vortex->codec,
2334 						   AC97_SIGMATEL_DAC2INVERT)
2335 				     | 4);
2336 	} else {
2337 		/* Allow separate front and rear channels. */
2338 		snd_ac97_write_cache(vortex->codec,
2339 				     AC97_SIGMATEL_DAC2INVERT,
2340 				     snd_ac97_read(vortex->codec,
2341 						   AC97_SIGMATEL_DAC2INVERT)
2342 				     & ~((u32)
2343 					 4));
2344 	}
2345 #endif
2346 	return dma;
2347 }
2348 
2349 /*
2350  Set the SampleRate of the SRC's attached to the given DMA engine.
2351  */
2352 static void
2353 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2354 {
2355 	stream_t *stream = &(vortex->dma_adb[adbdma]);
2356 	int i, cvrt;
2357 
2358 	/* dir=1:play ; dir=0:rec */
2359 	if (dir)
2360 		cvrt = SRC_RATIO(rate, 48000);
2361 	else
2362 		cvrt = SRC_RATIO(48000, rate);
2363 
2364 	/* Setup SRC's */
2365 	for (i = 0; i < NR_SRC; i++) {
2366 		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2367 			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2368 	}
2369 }
2370 
2371 // Timer and ISR functions.
2372 
2373 static void vortex_settimer(vortex_t * vortex, int period)
2374 {
2375 	//set the timer period to <period> 48000ths of a second.
2376 	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2377 }
2378 
2379 #if 0
2380 static void vortex_enable_timer_int(vortex_t * card)
2381 {
2382 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2383 		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2384 }
2385 
2386 static void vortex_disable_timer_int(vortex_t * card)
2387 {
2388 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2389 		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2390 }
2391 
2392 #endif
2393 static void vortex_enable_int(vortex_t * card)
2394 {
2395 	// CAsp4ISR__EnableVortexInt_void_
2396 	hwwrite(card->mmio, VORTEX_CTRL,
2397 		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2398 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2399 		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2400 }
2401 
2402 static void vortex_disable_int(vortex_t * card)
2403 {
2404 	hwwrite(card->mmio, VORTEX_CTRL,
2405 		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2406 }
2407 
2408 static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2409 {
2410 	vortex_t *vortex = dev_id;
2411 	int i, handled;
2412 	u32 source;
2413 
2414 	//check if the interrupt is ours.
2415 	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2416 		return IRQ_NONE;
2417 
2418 	// This is the Interrupt Enable flag we set before (consistency check).
2419 	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2420 		return IRQ_NONE;
2421 
2422 	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2423 	// Reset IRQ flags.
2424 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2425 	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2426 	// Is at least one IRQ flag set?
2427 	if (source == 0) {
2428 		dev_err(vortex->card->dev, "missing irq source\n");
2429 		return IRQ_NONE;
2430 	}
2431 
2432 	handled = 0;
2433 	// Attend every interrupt source.
2434 	if (unlikely(source & IRQ_ERR_MASK)) {
2435 		if (source & IRQ_FATAL) {
2436 			dev_err(vortex->card->dev, "IRQ fatal error\n");
2437 		}
2438 		if (source & IRQ_PARITY) {
2439 			dev_err(vortex->card->dev, "IRQ parity error\n");
2440 		}
2441 		if (source & IRQ_REG) {
2442 			dev_err(vortex->card->dev, "IRQ reg error\n");
2443 		}
2444 		if (source & IRQ_FIFO) {
2445 			dev_err(vortex->card->dev, "IRQ fifo error\n");
2446 		}
2447 		if (source & IRQ_DMA) {
2448 			dev_err(vortex->card->dev, "IRQ dma error\n");
2449 		}
2450 		handled = 1;
2451 	}
2452 	if (source & IRQ_PCMOUT) {
2453 		/* ALSA period acknowledge. */
2454 		spin_lock(&vortex->lock);
2455 		for (i = 0; i < NR_ADB; i++) {
2456 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2457 				if (!vortex_adbdma_bufshift(vortex, i))
2458 					continue;
2459 				spin_unlock(&vortex->lock);
2460 				snd_pcm_period_elapsed(vortex->dma_adb[i].
2461 						       substream);
2462 				spin_lock(&vortex->lock);
2463 			}
2464 		}
2465 #ifndef CHIP_AU8810
2466 		for (i = 0; i < NR_WT; i++) {
2467 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2468 				/* FIXME: we ignore the return value from
2469 				 * vortex_wtdma_bufshift() below as the delta
2470 				 * calculation seems not working for wavetable
2471 				 * by some reason
2472 				 */
2473 				vortex_wtdma_bufshift(vortex, i);
2474 				spin_unlock(&vortex->lock);
2475 				snd_pcm_period_elapsed(vortex->dma_wt[i].
2476 						       substream);
2477 				spin_lock(&vortex->lock);
2478 			}
2479 		}
2480 #endif
2481 		spin_unlock(&vortex->lock);
2482 		handled = 1;
2483 	}
2484 	//Acknowledge the Timer interrupt
2485 	if (source & IRQ_TIMER) {
2486 		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2487 		handled = 1;
2488 	}
2489 	if ((source & IRQ_MIDI) && vortex->rmidi) {
2490 		snd_mpu401_uart_interrupt(vortex->irq,
2491 					  vortex->rmidi->private_data);
2492 		handled = 1;
2493 	}
2494 
2495 	if (!handled) {
2496 		dev_err(vortex->card->dev, "unknown irq source %x\n", source);
2497 	}
2498 	return IRQ_RETVAL(handled);
2499 }
2500 
2501 /* Codec */
2502 
2503 #define POLL_COUNT 1000
2504 static void vortex_codec_init(vortex_t * vortex)
2505 {
2506 	int i;
2507 
2508 	for (i = 0; i < 32; i++) {
2509 		/* the windows driver writes -i, so we write -i */
2510 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2511 		msleep(2);
2512 	}
2513 	if (0) {
2514 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2515 		msleep(1);
2516 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2517 		msleep(1);
2518 	} else {
2519 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2520 		msleep(2);
2521 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2522 		msleep(2);
2523 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2524 		msleep(2);
2525 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2526 		msleep(2);
2527 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2528 		msleep(2);
2529 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2530 	}
2531 	for (i = 0; i < 32; i++) {
2532 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2533 		msleep(5);
2534 	}
2535 	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2536 	msleep(1);
2537 	/* Enable codec channels 0 and 1. */
2538 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2539 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2540 }
2541 
2542 static void
2543 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2544 {
2545 
2546 	vortex_t *card = (vortex_t *) codec->private_data;
2547 	unsigned int lifeboat = 0;
2548 
2549 	/* wait for transactions to clear */
2550 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2551 		udelay(100);
2552 		if (lifeboat++ > POLL_COUNT) {
2553 			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2554 			return;
2555 		}
2556 	}
2557 	/* write register */
2558 	hwwrite(card->mmio, VORTEX_CODEC_IO,
2559 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2560 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2561 		VORTEX_CODEC_WRITE |
2562 		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2563 
2564 	/* Flush Caches. */
2565 	hwread(card->mmio, VORTEX_CODEC_IO);
2566 }
2567 
2568 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2569 {
2570 
2571 	vortex_t *card = (vortex_t *) codec->private_data;
2572 	u32 read_addr, data;
2573 	unsigned lifeboat = 0;
2574 
2575 	/* wait for transactions to clear */
2576 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2577 		udelay(100);
2578 		if (lifeboat++ > POLL_COUNT) {
2579 			dev_err(card->card->dev, "ac97 codec stuck busy\n");
2580 			return 0xffff;
2581 		}
2582 	}
2583 	/* set up read address */
2584 	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2585 		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2586 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2587 
2588 	/* wait for address */
2589 	do {
2590 		udelay(100);
2591 		data = hwread(card->mmio, VORTEX_CODEC_IO);
2592 		if (lifeboat++ > POLL_COUNT) {
2593 			dev_err(card->card->dev,
2594 				"ac97 address never arrived\n");
2595 			return 0xffff;
2596 		}
2597 	} while ((data & VORTEX_CODEC_ADDMASK) !=
2598 		 (addr << VORTEX_CODEC_ADDSHIFT));
2599 
2600 	/* return data. */
2601 	return (u16) (data & VORTEX_CODEC_DATMASK);
2602 }
2603 
2604 /* SPDIF support  */
2605 
2606 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2607 {
2608 	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2609 
2610 	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2611 	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2612 		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2613 	//for (i=0x291D4; i<0x29200; i+=4)
2614 	for (i = 0; i < 11; i++)
2615 		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2616 	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2617 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2618 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2619 
2620 	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2621 	if (this_04 && this_08) {
2622 		int edi;
2623 
2624 		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2625 		if (i > 0x800) {
2626 			if (i < 0x1ffff)
2627 				edi = (i >> 1);
2628 			else
2629 				edi = 0x1ffff;
2630 		} else {
2631 			i = edi = 0x800;
2632 		}
2633 		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2634 		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2635 					this_0c, 1, 0, edi, 1);
2636 		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2637 					this_0c, 1, 0, edi, 1);
2638 	}
2639 
2640 	i = spdif_sr;
2641 	spdif_sr |= 0x8c;
2642 	switch (i) {
2643 	case 32000:
2644 		this_38 &= 0xFFFFFFFE;
2645 		this_38 &= 0xFFFFFFFD;
2646 		this_38 &= 0xF3FFFFFF;
2647 		this_38 |= 0x03000000;	/* set 32khz samplerate */
2648 		this_38 &= 0xFFFFFF3F;
2649 		spdif_sr &= 0xFFFFFFFD;
2650 		spdif_sr |= 1;
2651 		break;
2652 	case 44100:
2653 		this_38 &= 0xFFFFFFFE;
2654 		this_38 &= 0xFFFFFFFD;
2655 		this_38 &= 0xF0FFFFFF;
2656 		this_38 |= 0x03000000;
2657 		this_38 &= 0xFFFFFF3F;
2658 		spdif_sr &= 0xFFFFFFFC;
2659 		break;
2660 	case 48000:
2661 		if (spdif_mode == 1) {
2662 			this_38 &= 0xFFFFFFFE;
2663 			this_38 &= 0xFFFFFFFD;
2664 			this_38 &= 0xF2FFFFFF;
2665 			this_38 |= 0x02000000;	/* set 48khz samplerate */
2666 			this_38 &= 0xFFFFFF3F;
2667 		} else {
2668 			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2669 			this_38 |= 0x00000003;
2670 			this_38 &= 0xFFFFFFBF;
2671 			this_38 |= 0x80;
2672 		}
2673 		spdif_sr |= 2;
2674 		spdif_sr &= 0xFFFFFFFE;
2675 		break;
2676 
2677 	}
2678 	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2679 	   registers. seems to be for the standard IEC/SPDIF initialization
2680 	   stuff */
2681 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2682 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2683 	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2684 }
2685 
2686 /* Initialization */
2687 
2688 static int vortex_core_init(vortex_t *vortex)
2689 {
2690 
2691 	dev_info(vortex->card->dev, "init started\n");
2692 	/* Hardware Init. */
2693 	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2694 	msleep(5);
2695 	hwwrite(vortex->mmio, VORTEX_CTRL,
2696 		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2697 	msleep(5);
2698 	/* Reset IRQ flags */
2699 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2700 	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2701 
2702 	vortex_codec_init(vortex);
2703 
2704 #ifdef CHIP_AU8830
2705 	hwwrite(vortex->mmio, VORTEX_CTRL,
2706 		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2707 #endif
2708 
2709 	/* Init audio engine. */
2710 	vortex_adbdma_init(vortex);
2711 	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2712 	vortex_adb_init(vortex);
2713 	/* Init processing blocks. */
2714 	vortex_fifo_init(vortex);
2715 	vortex_mixer_init(vortex);
2716 	vortex_srcblock_init(vortex);
2717 #ifndef CHIP_AU8820
2718 	vortex_eq_init(vortex);
2719 	vortex_spdif_init(vortex, 48000, 1);
2720 	vortex_Vort3D_enable(vortex);
2721 #endif
2722 #ifndef CHIP_AU8810
2723 	vortex_wt_init(vortex);
2724 #endif
2725 	// Moved to au88x0.c
2726 	//vortex_connect_default(vortex, 1);
2727 
2728 	vortex_settimer(vortex, 0x90);
2729 	// Enable Interrupts.
2730 	// vortex_enable_int() must be first !!
2731 	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2732 	// vortex_enable_int(vortex);
2733 	//vortex_enable_timer_int(vortex);
2734 	//vortex_disable_timer_int(vortex);
2735 
2736 	dev_info(vortex->card->dev, "init.... done.\n");
2737 	spin_lock_init(&vortex->lock);
2738 
2739 	return 0;
2740 }
2741 
2742 static int vortex_core_shutdown(vortex_t * vortex)
2743 {
2744 
2745 	dev_info(vortex->card->dev, "shutdown started\n");
2746 #ifndef CHIP_AU8820
2747 	vortex_eq_free(vortex);
2748 	vortex_Vort3D_disable(vortex);
2749 #endif
2750 	//vortex_disable_timer_int(vortex);
2751 	vortex_disable_int(vortex);
2752 	vortex_connect_default(vortex, 0);
2753 	/* Reset all DMA fifos. */
2754 	vortex_fifo_init(vortex);
2755 	/* Erase all audio routes. */
2756 	vortex_adb_init(vortex);
2757 
2758 	/* Disable MPU401 */
2759 	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2760 	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2761 
2762 	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2763 	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2764 	msleep(5);
2765 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2766 
2767 	dev_info(vortex->card->dev, "shutdown.... done.\n");
2768 	return 0;
2769 }
2770 
2771 /* Alsa support. */
2772 
2773 static int vortex_alsafmt_aspfmt(int alsafmt, vortex_t *v)
2774 {
2775 	int fmt;
2776 
2777 	switch (alsafmt) {
2778 	case SNDRV_PCM_FORMAT_U8:
2779 		fmt = 0x1;
2780 		break;
2781 	case SNDRV_PCM_FORMAT_MU_LAW:
2782 		fmt = 0x2;
2783 		break;
2784 	case SNDRV_PCM_FORMAT_A_LAW:
2785 		fmt = 0x3;
2786 		break;
2787 	case SNDRV_PCM_FORMAT_SPECIAL:
2788 		fmt = 0x4;	/* guess. */
2789 		break;
2790 	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2791 		fmt = 0x5;	/* guess. */
2792 		break;
2793 	case SNDRV_PCM_FORMAT_S16_LE:
2794 		fmt = 0x8;
2795 		break;
2796 	case SNDRV_PCM_FORMAT_S16_BE:
2797 		fmt = 0x9;	/* check this... */
2798 		break;
2799 	default:
2800 		fmt = 0x8;
2801 		dev_err(v->card->dev,
2802 			"format unsupported %d\n", alsafmt);
2803 		break;
2804 	}
2805 	return fmt;
2806 }
2807 
2808 /* Some not yet useful translations. */
2809 #if 0
2810 typedef enum {
2811 	ASPFMTLINEAR16 = 0,	/* 0x8 */
2812 	ASPFMTLINEAR8,		/* 0x1 */
2813 	ASPFMTULAW,		/* 0x2 */
2814 	ASPFMTALAW,		/* 0x3 */
2815 	ASPFMTSPORT,		/* ? */
2816 	ASPFMTSPDIF,		/* ? */
2817 } ASPENCODING;
2818 
2819 static int
2820 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2821 {
2822 	int a, this_194;
2823 
2824 	if ((bits != 8) && (bits != 16))
2825 		return -1;
2826 
2827 	switch (encod) {
2828 	case 0:
2829 		if (bits == 0x10)
2830 			a = 8;	// 16 bit
2831 		break;
2832 	case 1:
2833 		if (bits == 8)
2834 			a = 1;	// 8 bit
2835 		break;
2836 	case 2:
2837 		a = 2;		// U_LAW
2838 		break;
2839 	case 3:
2840 		a = 3;		// A_LAW
2841 		break;
2842 	}
2843 	switch (nch) {
2844 	case 1:
2845 		this_194 = 0;
2846 		break;
2847 	case 2:
2848 		this_194 = 1;
2849 		break;
2850 	case 4:
2851 		this_194 = 1;
2852 		break;
2853 	case 6:
2854 		this_194 = 1;
2855 		break;
2856 	}
2857 	return (a);
2858 }
2859 
2860 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2861 {
2862 	short int d, this_148;
2863 
2864 	d = ((bits >> 3) * nch);
2865 	this_148 = 0xbb80 / d;
2866 }
2867 #endif
2868