xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision 9ac8d3fb)
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 			printk(KERN_ERR
289 			       "vortex_mixer_addWTD: lifeboat overflow\n");
290 			return 0;
291 		}
292 	}
293 	hwwrite(vortex->mmio, VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2), mix);
294 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
295 	return 1;
296 }
297 
298 static int
299 vortex_mixer_delWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
300 {
301 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
302 	//int esp1f=edi(while)=src, esp10=ch;
303 
304 	eax = hwread(vortex->mmio, VORTEX_MIXER_SR);
305 	if (((1 << ch) & eax) == 0) {
306 		printk(KERN_ERR "mix ALARM %x\n", eax);
307 		return 0;
308 	}
309 	ebp = VORTEX_MIXER_CHNBASE + (ch << 2);
310 	esp18 = hwread(vortex->mmio, ebp);
311 	if (esp18 & 0x10) {
312 		ebx = (esp18 & 0xf);
313 		if (mix == ebx) {
314 			ebx = VORTEX_MIXER_RTBASE + (mix << 2);
315 			edx = hwread(vortex->mmio, ebx);
316 			//7b60
317 			hwwrite(vortex->mmio, ebp, edx);
318 			hwwrite(vortex->mmio, ebx, 0);
319 		} else {
320 			//7ad3
321 			edx =
322 			    hwread(vortex->mmio,
323 				   VORTEX_MIXER_RTBASE + (ebx << 2));
324 			//printk(KERN_INFO "vortex: mixdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
325 			while ((edx & 0xf) != mix) {
326 				if ((esi) > 0xf) {
327 					printk(KERN_ERR
328 					       "vortex: mixdelWTD: error lifeboat overflow\n");
329 					return 0;
330 				}
331 				esp14 = ebx;
332 				ebx = edx & 0xf;
333 				ebp = ebx << 2;
334 				edx =
335 				    hwread(vortex->mmio,
336 					   VORTEX_MIXER_RTBASE + ebp);
337 				//printk(KERN_INFO "vortex: mixdelWTD: while addr=%x, val=%x\n", ebp, edx);
338 				esi++;
339 			}
340 			//7b30
341 			ebp = ebx << 2;
342 			if (edx & 0x10) {	/* Delete entry in between others */
343 				ebx = VORTEX_MIXER_RTBASE + ((edx & 0xf) << 2);
344 				edx = hwread(vortex->mmio, ebx);
345 				//7b60
346 				hwwrite(vortex->mmio,
347 					VORTEX_MIXER_RTBASE + ebp, edx);
348 				hwwrite(vortex->mmio, ebx, 0);
349 				//printk(KERN_INFO "vortex mixdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
350 			} else {	/* Delete last entry */
351 				//7b83
352 				if (esp14 == -1)
353 					hwwrite(vortex->mmio,
354 						VORTEX_MIXER_CHNBASE +
355 						(ch << 2), esp18 & 0xef);
356 				else {
357 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
358 					hwwrite(vortex->mmio,
359 						VORTEX_MIXER_RTBASE +
360 						(esp14 << 2), ebx);
361 					//printk(KERN_INFO "vortex mixdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
362 				}
363 				hwwrite(vortex->mmio,
364 					VORTEX_MIXER_RTBASE + ebp, 0);
365 				return 1;
366 			}
367 		}
368 	} else {
369 		//printk(KERN_INFO "removed last mix\n");
370 		//7be0
371 		vortex_mixer_dis_sr(vortex, ch);
372 		hwwrite(vortex->mmio, ebp, 0);
373 	}
374 	return 1;
375 }
376 
377 static void vortex_mixer_init(vortex_t * vortex)
378 {
379 	u32 addr;
380 	int x;
381 
382 	// FIXME: get rid of this crap.
383 	memset(mchannels, 0, NR_MIXOUT * sizeof(int));
384 	memset(rampchs, 0, NR_MIXOUT * sizeof(int));
385 
386 	addr = VORTEX_MIX_SMP + 0x17c;
387 	for (x = 0x5f; x >= 0; x--) {
388 		hwwrite(vortex->mmio, addr, 0);
389 		addr -= 4;
390 	}
391 	addr = VORTEX_MIX_ENIN + 0x1fc;
392 	for (x = 0x7f; x >= 0; x--) {
393 		hwwrite(vortex->mmio, addr, 0);
394 		addr -= 4;
395 	}
396 	addr = VORTEX_MIX_SMP + 0x17c;
397 	for (x = 0x5f; x >= 0; x--) {
398 		hwwrite(vortex->mmio, addr, 0);
399 		addr -= 4;
400 	}
401 	addr = VORTEX_MIX_INVOL_A + 0x7fc;
402 	for (x = 0x1ff; x >= 0; x--) {
403 		hwwrite(vortex->mmio, addr, 0x80);
404 		addr -= 4;
405 	}
406 	addr = VORTEX_MIX_VOL_A + 0x3c;
407 	for (x = 0xf; x >= 0; x--) {
408 		hwwrite(vortex->mmio, addr, 0x80);
409 		addr -= 4;
410 	}
411 	addr = VORTEX_MIX_INVOL_B + 0x7fc;
412 	for (x = 0x1ff; x >= 0; x--) {
413 		hwwrite(vortex->mmio, addr, 0x80);
414 		addr -= 4;
415 	}
416 	addr = VORTEX_MIX_VOL_B + 0x3c;
417 	for (x = 0xf; x >= 0; x--) {
418 		hwwrite(vortex->mmio, addr, 0x80);
419 		addr -= 4;
420 	}
421 	addr = VORTEX_MIXER_RTBASE + (MIXER_RTBASE_SIZE - 1) * 4;
422 	for (x = (MIXER_RTBASE_SIZE - 1); x >= 0; x--) {
423 		hwwrite(vortex->mmio, addr, 0x0);
424 		addr -= 4;
425 	}
426 	hwwrite(vortex->mmio, VORTEX_MIXER_SR, 0);
427 
428 	/* Set clipping ceiling (this may be all wrong). */
429 	/*
430 	for (x = 0; x < 0x80; x++) {
431 		hwwrite(vortex->mmio, VORTEX_MIXER_CLIP + (x << 2), 0x3ffff);
432 	}
433 	*/
434 	/*
435 	   call CAsp4Mix__Initialize_CAsp4HwIO____CAsp4Mixer____
436 	   Register ISR callback for volume smooth fade out.
437 	   Maybe this avoids clicks when press "stop" ?
438 	 */
439 }
440 
441 /*  SRC (CAsp4Src.s and CAsp4SrcBlock) */
442 
443 static void vortex_src_en_sr(vortex_t * vortex, int channel)
444 {
445 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
446 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) | (0x1 << channel));
447 }
448 
449 static void vortex_src_dis_sr(vortex_t * vortex, int channel)
450 {
451 	hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
452 		hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) & ~(0x1 << channel));
453 }
454 
455 static void vortex_src_flushbuffers(vortex_t * vortex, unsigned char src)
456 {
457 	int i;
458 
459 	for (i = 0x1f; i >= 0; i--)
460 		hwwrite(vortex->mmio,
461 			VORTEX_SRC_DATA0 + (src << 7) + (i << 2), 0);
462 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3), 0);
463 	hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3) + 4, 0);
464 }
465 
466 static void vortex_src_cleardrift(vortex_t * vortex, unsigned char src)
467 {
468 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
469 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT1 + (src << 2), 0);
470 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
471 }
472 
473 static void
474 vortex_src_set_throttlesource(vortex_t * vortex, unsigned char src, int en)
475 {
476 	int temp;
477 
478 	temp = hwread(vortex->mmio, VORTEX_SRC_SOURCE);
479 	if (en)
480 		temp |= 1 << src;
481 	else
482 		temp &= ~(1 << src);
483 	hwwrite(vortex->mmio, VORTEX_SRC_SOURCE, temp);
484 }
485 
486 static int
487 vortex_src_persist_convratio(vortex_t * vortex, unsigned char src, int ratio)
488 {
489 	int temp, lifeboat = 0;
490 
491 	do {
492 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), ratio);
493 		temp = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
494 		if ((++lifeboat) > 0x9) {
495 			printk(KERN_ERR "Vortex: Src cvr fail\n");
496 			break;
497 		}
498 	}
499 	while (temp != ratio);
500 	return temp;
501 }
502 
503 #if 0
504 static void vortex_src_slowlock(vortex_t * vortex, unsigned char src)
505 {
506 	int temp;
507 
508 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
509 	hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
510 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
511 	if (temp & 0x200)
512 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
513 			temp & ~0x200L);
514 }
515 
516 static void
517 vortex_src_change_convratio(vortex_t * vortex, unsigned char src, int ratio)
518 {
519 	int temp, a;
520 
521 	if ((ratio & 0x10000) && (ratio != 0x10000)) {
522 		if (ratio & 0x3fff)
523 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 1;
524 		else
525 			a = (0x11 - ((ratio >> 0xe) & 0x3)) - 2;
526 	} else
527 		a = 0xc;
528 	temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
529 	if (((temp >> 4) & 0xf) != a)
530 		hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
531 			(temp & 0xf) | ((a & 0xf) << 4));
532 
533 	vortex_src_persist_convratio(vortex, src, ratio);
534 }
535 
536 static int
537 vortex_src_checkratio(vortex_t * vortex, unsigned char src,
538 		      unsigned int desired_ratio)
539 {
540 	int hw_ratio, lifeboat = 0;
541 
542 	hw_ratio = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
543 
544 	while (hw_ratio != desired_ratio) {
545 		hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), desired_ratio);
546 
547 		if ((lifeboat++) > 15) {
548 			printk(KERN_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 			printk(KERN_ERR
688 			       "vortex_src_addWTD: lifeboat overflow\n");
689 			return 0;
690 		}
691 	}
692 	hwwrite(vortex->mmio, VORTEX_SRC_RTBASE + ((temp & 0xf) << 2), src);
693 	//hwwrite(vortex->mmio, prev, (temp & (NR_SRC-1)) | NR_SRC);
694 	hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
695 	return 1;
696 }
697 
698 static int
699 vortex_src_delWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
700 {
701 	int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
702 	//int esp1f=edi(while)=src, esp10=ch;
703 
704 	eax = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
705 	if (((1 << ch) & eax) == 0) {
706 		printk(KERN_ERR "src alarm\n");
707 		return 0;
708 	}
709 	ebp = VORTEX_SRC_CHNBASE + (ch << 2);
710 	esp18 = hwread(vortex->mmio, ebp);
711 	if (esp18 & 0x10) {
712 		ebx = (esp18 & 0xf);
713 		if (src == ebx) {
714 			ebx = VORTEX_SRC_RTBASE + (src << 2);
715 			edx = hwread(vortex->mmio, ebx);
716 			//7b60
717 			hwwrite(vortex->mmio, ebp, edx);
718 			hwwrite(vortex->mmio, ebx, 0);
719 		} else {
720 			//7ad3
721 			edx =
722 			    hwread(vortex->mmio,
723 				   VORTEX_SRC_RTBASE + (ebx << 2));
724 			//printk(KERN_INFO "vortex: srcdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
725 			while ((edx & 0xf) != src) {
726 				if ((esi) > 0xf) {
727 					printk
728 					    ("vortex: srcdelWTD: error, lifeboat overflow\n");
729 					return 0;
730 				}
731 				esp14 = ebx;
732 				ebx = edx & 0xf;
733 				ebp = ebx << 2;
734 				edx =
735 				    hwread(vortex->mmio,
736 					   VORTEX_SRC_RTBASE + ebp);
737 				//printk(KERN_INFO "vortex: srcdelWTD: while addr=%x, val=%x\n", ebp, edx);
738 				esi++;
739 			}
740 			//7b30
741 			ebp = ebx << 2;
742 			if (edx & 0x10) {	/* Delete entry in between others */
743 				ebx = VORTEX_SRC_RTBASE + ((edx & 0xf) << 2);
744 				edx = hwread(vortex->mmio, ebx);
745 				//7b60
746 				hwwrite(vortex->mmio,
747 					VORTEX_SRC_RTBASE + ebp, edx);
748 				hwwrite(vortex->mmio, ebx, 0);
749 				//printk(KERN_INFO "vortex srcdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
750 			} else {	/* Delete last entry */
751 				//7b83
752 				if (esp14 == -1)
753 					hwwrite(vortex->mmio,
754 						VORTEX_SRC_CHNBASE +
755 						(ch << 2), esp18 & 0xef);
756 				else {
757 					ebx = (0xffffffe0 & edx) | (0xf & ebx);
758 					hwwrite(vortex->mmio,
759 						VORTEX_SRC_RTBASE +
760 						(esp14 << 2), ebx);
761 					//printk(KERN_INFO"vortex srcdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
762 				}
763 				hwwrite(vortex->mmio,
764 					VORTEX_SRC_RTBASE + ebp, 0);
765 				return 1;
766 			}
767 		}
768 	} else {
769 		//7be0
770 		vortex_src_dis_sr(vortex, ch);
771 		hwwrite(vortex->mmio, ebp, 0);
772 	}
773 	return 1;
774 }
775 
776  /*FIFO*/
777 
778 static void
779 vortex_fifo_clearadbdata(vortex_t * vortex, int fifo, int x)
780 {
781 	for (x--; x >= 0; x--)
782 		hwwrite(vortex->mmio,
783 			VORTEX_FIFO_ADBDATA +
784 			(((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
785 }
786 
787 #if 0
788 static void vortex_fifo_adbinitialize(vortex_t * vortex, int fifo, int j)
789 {
790 	vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
791 #ifdef CHIP_AU8820
792 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
793 		(FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
794 #else
795 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
796 		(FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
797 #endif
798 }
799 #endif
800 static void vortex_fifo_setadbvalid(vortex_t * vortex, int fifo, int en)
801 {
802 	hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
803 		(hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2)) &
804 		 0xffffffef) | ((1 & en) << 4) | FIFO_U1);
805 }
806 
807 static void
808 vortex_fifo_setadbctrl(vortex_t * vortex, int fifo, int b, 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 			printk(KERN_ERR
823 			       "Vortex: vortex_fifo_setadbctrl fail\n");
824 			break;
825 		}
826 	}
827 	while (temp & FIFO_RDONLY);
828 
829 	// AU8830 semes to take some special care about fifo content (data).
830 	// But i'm just to lazy to translate that :)
831 	if (valid) {
832 		if ((temp & FIFO_VALID) == 0) {
833 			//this_8[fifo] = 0;
834 			vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);	// this_4
835 #ifdef CHIP_AU8820
836 			temp = (this_4 & 0x1f) << 0xb;
837 #else
838 			temp = (this_4 & 0x3f) << 0xc;
839 #endif
840 			temp = (temp & 0xfffffffd) | ((b & 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 			printk(KERN_ERR "Vortex: vortex_fifo_setwtctrl fail\n");
919 			break;
920 		}
921 	}
922 	while (temp & FIFO_RDONLY);
923 
924 	if (valid) {
925 		if ((temp & FIFO_VALID) == 0) {
926 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);	// this_4
927 #ifdef CHIP_AU8820
928 			temp = (this_4 & 0x1f) << 0xb;
929 #else
930 			temp = (this_4 & 0x3f) << 0xc;
931 #endif
932 			temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
933 			temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
934 			temp = (temp & 0xffffffef) | ((valid & 1) << 4);
935 			temp |= FIFO_U1;
936 			temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
937 #ifdef CHIP_AU8820
938 			temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
939 #endif
940 #ifdef CHIP_AU8830
941 			temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
942 			temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
943 #endif
944 #ifdef CHIP_AU8810
945 			temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
946 			temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
947 #endif
948 		}
949 	} else {
950 		if (temp & FIFO_VALID) {
951 #ifdef CHIP_AU8820
952 			temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
953 #endif
954 #ifdef CHIP_AU8830
955 			temp =
956 			    ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
957 #endif
958 #ifdef CHIP_AU8810
959 			temp =
960 			    ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
961 #endif
962 		} else
963 			/*if (this_8[fifo]) */
964 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
965 	}
966 	hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
967 	hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
968 
969 /*
970     do {
971 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
972 		if (lifeboat++ > 0xbb8) {
973 			printk(KERN_ERR "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
974 			break;
975 		}
976     } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
977 
978 
979 	if (valid) {
980 		if (temp & FIFO_VALID) {
981 			temp = 0x40000;
982 			//temp |= 0x08000000;
983 			//temp |= 0x10000000;
984 			//temp |= 0x04000000;
985 			//temp |= 0x00400000;
986 			temp |= 0x1c400000;
987 			temp &= 0xFFFFFFF3;
988 			temp &= 0xFFFFFFEF;
989 			temp |= (valid & 1) << 4;
990 			hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
991 			return;
992 		} else {
993 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
994 			return;
995 		}
996 	} else {
997 		temp &= 0xffffffef;
998 		temp |= 0x08000000;
999 		temp |= 0x10000000;
1000 		temp |= 0x04000000;
1001 		temp |= 0x00400000;
1002 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1003 		temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
1004 		//((temp >> 6) & 0x3f)
1005 
1006 		priority = 0;
1007 		if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
1008 			vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
1009 		valid = 0xfb;
1010 		temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1011 		temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1012 		temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1013 		temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1014 		temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1015 		hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1016 	}
1017 
1018 	*/
1019 
1020 	/*
1021 	   temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1022 	   temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1023 	   temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1024 	   temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1025 	   temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1026 	   #ifdef FIFO_BITS
1027 	   temp = temp | FIFO_BITS | 40000;
1028 	   #endif
1029 	   // 0x1c440010, 0x1c400000
1030 	   hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1031 	 */
1032 }
1033 
1034 #endif
1035 static void vortex_fifo_init(vortex_t * vortex)
1036 {
1037 	int x;
1038 	u32 addr;
1039 
1040 	/* ADB DMA channels fifos. */
1041 	addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1042 	for (x = NR_ADB - 1; x >= 0; x--) {
1043 		hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1044 		if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1045 			printk(KERN_ERR "bad adb fifo reset!");
1046 		vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1047 		addr -= 4;
1048 	}
1049 
1050 #ifndef CHIP_AU8810
1051 	/* WT DMA channels fifos. */
1052 	addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1053 	for (x = NR_WT - 1; x >= 0; x--) {
1054 		hwwrite(vortex->mmio, addr, FIFO_U0);
1055 		if (hwread(vortex->mmio, addr) != FIFO_U0)
1056 			printk(KERN_ERR
1057 			       "bad wt fifo reset (0x%08x, 0x%08x)!\n",
1058 			       addr, hwread(vortex->mmio, addr));
1059 		vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1060 		addr -= 4;
1061 	}
1062 #endif
1063 	/* trigger... */
1064 #ifdef CHIP_AU8820
1065 	hwwrite(vortex->mmio, 0xf8c0, 0xd03);	//0x0843 0xd6b
1066 #else
1067 #ifdef CHIP_AU8830
1068 	hwwrite(vortex->mmio, 0x17000, 0x61);	/* wt a */
1069 	hwwrite(vortex->mmio, 0x17004, 0x61);	/* wt b */
1070 #endif
1071 	hwwrite(vortex->mmio, 0x17008, 0x61);	/* adb */
1072 #endif
1073 }
1074 
1075 /* ADBDMA */
1076 
1077 static void vortex_adbdma_init(vortex_t * vortex)
1078 {
1079 }
1080 
1081 static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1082 {
1083 	stream_t *dma = &vortex->dma_adb[adbdma];
1084 
1085 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1086 		dma->dma_ctrl);
1087 }
1088 
1089 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1090 {
1091 	stream_t *dma = &vortex->dma_adb[adbdma];
1092 	//hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1093 	hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1094 		sb << ((0xf - (adbdma & 0xf)) * 2));
1095 	dma->period_real = dma->period_virt = sb;
1096 }
1097 
1098 static void
1099 vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1100 			 int psize, int count)
1101 {
1102 	stream_t *dma = &vortex->dma_adb[adbdma];
1103 
1104 	dma->period_bytes = psize;
1105 	dma->nr_periods = count;
1106 
1107 	dma->cfg0 = 0;
1108 	dma->cfg1 = 0;
1109 	switch (count) {
1110 		/* Four or more pages */
1111 	default:
1112 	case 4:
1113 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1114 		hwwrite(vortex->mmio,
1115 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1116 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1117 		/* 3 pages */
1118 	case 3:
1119 		dma->cfg0 |= 0x12000000;
1120 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1121 		hwwrite(vortex->mmio,
1122 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1123 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1124 		/* 2 pages */
1125 	case 2:
1126 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1127 		hwwrite(vortex->mmio,
1128 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1129 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1130 		/* 1 page */
1131 	case 1:
1132 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1133 		hwwrite(vortex->mmio,
1134 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1135 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1136 		break;
1137 	}
1138 	//printk("vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n", dma->cfg0, dma->cfg1);
1139 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1140 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1141 
1142 	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1143 	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1144 }
1145 
1146 static void
1147 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1148 		      int fmt, int d, u32 offset)
1149 {
1150 	stream_t *dma = &vortex->dma_adb[adbdma];
1151 
1152 	dma->dma_unknown = d;
1153 	dma->dma_ctrl =
1154 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1155 	/* Enable PCMOUT interrupts. */
1156 	dma->dma_ctrl =
1157 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1158 
1159 	dma->dma_ctrl =
1160 	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1161 	dma->dma_ctrl =
1162 	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1163 
1164 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1165 		dma->dma_ctrl);
1166 	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1167 }
1168 
1169 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1170 {
1171 	stream_t *dma = &vortex->dma_adb[adbdma];
1172 	int page, p, pp, delta, i;
1173 
1174 	page =
1175 	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1176 	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1177 	if (dma->nr_periods >= 4)
1178 		delta = (page - dma->period_real) & 3;
1179 	else {
1180 		delta = (page - dma->period_real);
1181 		if (delta < 0)
1182 			delta += dma->nr_periods;
1183 	}
1184 	if (delta == 0)
1185 		return 0;
1186 
1187 	/* refresh hw page table */
1188 	if (dma->nr_periods > 4) {
1189 		for (i = 0; i < delta; i++) {
1190 			/* p: audio buffer page index */
1191 			p = dma->period_virt + i + 4;
1192 			if (p >= dma->nr_periods)
1193 				p -= dma->nr_periods;
1194 			/* pp: hardware DMA page index. */
1195 			pp = dma->period_real + i;
1196 			if (pp >= 4)
1197 				pp -= 4;
1198 			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1199 			hwwrite(vortex->mmio,
1200 				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1201 				snd_pcm_sgbuf_get_addr(dma->substream,
1202 				dma->period_bytes * p));
1203 			/* Force write thru cache. */
1204 			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1205 			       (((adbdma << 2) + pp) << 2));
1206 		}
1207 	}
1208 	dma->period_virt += delta;
1209 	dma->period_real = page;
1210 	if (dma->period_virt >= dma->nr_periods)
1211 		dma->period_virt -= dma->nr_periods;
1212 	if (delta != 1)
1213 		printk(KERN_INFO "vortex: %d virt=%d, real=%d, delta=%d\n",
1214 		       adbdma, dma->period_virt, dma->period_real, delta);
1215 
1216 	return delta;
1217 }
1218 
1219 
1220 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1221 	stream_t *dma = &vortex->dma_adb[adbdma];
1222 	int p, pp, i;
1223 
1224 	/* refresh hw page table */
1225 	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1226 		/* p: audio buffer page index */
1227 		p = dma->period_virt + i;
1228 		if (p >= dma->nr_periods)
1229 			p -= dma->nr_periods;
1230 		/* pp: hardware DMA page index. */
1231 		pp = dma->period_real + i;
1232 		if (dma->nr_periods < 4) {
1233 			if (pp >= dma->nr_periods)
1234 				pp -= dma->nr_periods;
1235 		}
1236 		else {
1237 			if (pp >= 4)
1238 				pp -= 4;
1239 		}
1240 		hwwrite(vortex->mmio,
1241 			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1242 			snd_pcm_sgbuf_get_addr(dma->substream,
1243 					       dma->period_bytes * p));
1244 		/* Force write thru cache. */
1245 		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1246 	}
1247 }
1248 
1249 static int inline vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1250 {
1251 	stream_t *dma = &vortex->dma_adb[adbdma];
1252 	int temp;
1253 
1254 	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1255 	temp = (dma->period_virt * dma->period_bytes) + (temp & POS_MASK);
1256 	return (temp);
1257 }
1258 
1259 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1260 {
1261 	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1262 	stream_t *dma = &vortex->dma_adb[adbdma];
1263 
1264 	switch (dma->fifo_status) {
1265 	case FIFO_START:
1266 		vortex_fifo_setadbvalid(vortex, adbdma,
1267 					dma->fifo_enabled ? 1 : 0);
1268 		break;
1269 	case FIFO_STOP:
1270 		this_8 = 1;
1271 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1272 			dma->dma_ctrl);
1273 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1274 				       this_4, this_8,
1275 				       dma->fifo_enabled ? 1 : 0, 0);
1276 		break;
1277 	case FIFO_PAUSE:
1278 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1279 				       this_4, this_8,
1280 				       dma->fifo_enabled ? 1 : 0, 0);
1281 		break;
1282 	}
1283 	dma->fifo_status = FIFO_START;
1284 }
1285 
1286 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1287 {
1288 	stream_t *dma = &vortex->dma_adb[adbdma];
1289 
1290 	int this_8 = 1, this_4 = 0;
1291 	switch (dma->fifo_status) {
1292 	case FIFO_STOP:
1293 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1294 			dma->dma_ctrl);
1295 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1296 				       this_4, this_8,
1297 				       dma->fifo_enabled ? 1 : 0, 0);
1298 		break;
1299 	case FIFO_PAUSE:
1300 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1301 				       this_4, this_8,
1302 				       dma->fifo_enabled ? 1 : 0, 0);
1303 		break;
1304 	}
1305 	dma->fifo_status = FIFO_START;
1306 }
1307 
1308 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1309 {
1310 	stream_t *dma = &vortex->dma_adb[adbdma];
1311 
1312 	int this_8 = 0, this_4 = 0;
1313 	switch (dma->fifo_status) {
1314 	case FIFO_START:
1315 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1316 				       this_4, this_8, 0, 0);
1317 		break;
1318 	case FIFO_STOP:
1319 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1320 			dma->dma_ctrl);
1321 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1322 				       this_4, this_8, 0, 0);
1323 		break;
1324 	}
1325 	dma->fifo_status = FIFO_PAUSE;
1326 }
1327 
1328 #if 0				// Using pause instead
1329 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1330 {
1331 	stream_t *dma = &vortex->dma_adb[adbdma];
1332 
1333 	int this_4 = 0, this_8 = 0;
1334 	if (dma->fifo_status == FIFO_START)
1335 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1336 				       this_4, this_8, 0, 0);
1337 	else if (dma->fifo_status == FIFO_STOP)
1338 		return;
1339 	dma->fifo_status = FIFO_STOP;
1340 	dma->fifo_enabled = 0;
1341 }
1342 
1343 #endif
1344 /* WTDMA */
1345 
1346 #ifndef CHIP_AU8810
1347 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1348 {
1349 	//int this_7c=dma_ctrl;
1350 	stream_t *dma = &vortex->dma_wt[wtdma];
1351 
1352 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1353 }
1354 
1355 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1356 {
1357 	stream_t *dma = &vortex->dma_wt[wtdma];
1358 	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1359 	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1360 		sb << ((0xf - (wtdma & 0xf)) * 2));
1361 	dma->period_real = dma->period_virt = sb;
1362 }
1363 
1364 static void
1365 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1366 			int psize, int count)
1367 {
1368 	stream_t *dma = &vortex->dma_wt[wtdma];
1369 
1370 	dma->period_bytes = psize;
1371 	dma->nr_periods = count;
1372 
1373 	dma->cfg0 = 0;
1374 	dma->cfg1 = 0;
1375 	switch (count) {
1376 		/* Four or more pages */
1377 	default:
1378 	case 4:
1379 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1380 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1381 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1382 		/* 3 pages */
1383 	case 3:
1384 		dma->cfg0 |= 0x12000000;
1385 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1386 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1387 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1388 		/* 2 pages */
1389 	case 2:
1390 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1391 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1392 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1393 		/* 1 page */
1394 	case 1:
1395 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1396 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1397 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1398 		break;
1399 	}
1400 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1401 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1402 
1403 	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1404 	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1405 }
1406 
1407 static void
1408 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1409 		     /*int e, */ u32 offset)
1410 {
1411 	stream_t *dma = &vortex->dma_wt[wtdma];
1412 
1413 	//dma->this_08 = e;
1414 	dma->dma_unknown = d;
1415 	dma->dma_ctrl = 0;
1416 	dma->dma_ctrl =
1417 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1418 	/* PCMOUT interrupt */
1419 	dma->dma_ctrl =
1420 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1421 	/* Always playback. */
1422 	dma->dma_ctrl |= (1 << DIR_SHIFT);
1423 	/* Audio Format */
1424 	dma->dma_ctrl =
1425 	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1426 	/* Write into hardware */
1427 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1428 }
1429 
1430 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1431 {
1432 	stream_t *dma = &vortex->dma_wt[wtdma];
1433 	int page, p, pp, delta, i;
1434 
1435 	page =
1436 	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
1437 	     WT_SUBBUF_MASK)
1438 	    >> WT_SUBBUF_SHIFT;
1439 	if (dma->nr_periods >= 4)
1440 		delta = (page - dma->period_real) & 3;
1441 	else {
1442 		delta = (page - dma->period_real);
1443 		if (delta < 0)
1444 			delta += dma->nr_periods;
1445 	}
1446 	if (delta == 0)
1447 		return 0;
1448 
1449 	/* refresh hw page table */
1450 	if (dma->nr_periods > 4) {
1451 		for (i = 0; i < delta; i++) {
1452 			/* p: audio buffer page index */
1453 			p = dma->period_virt + i + 4;
1454 			if (p >= dma->nr_periods)
1455 				p -= dma->nr_periods;
1456 			/* pp: hardware DMA page index. */
1457 			pp = dma->period_real + i;
1458 			if (pp >= 4)
1459 				pp -= 4;
1460 			hwwrite(vortex->mmio,
1461 				VORTEX_WTDMA_BUFBASE +
1462 				(((wtdma << 2) + pp) << 2),
1463 				snd_pcm_sgbuf_get_addr(dma->substream,
1464 						       dma->period_bytes * p));
1465 			/* Force write thru cache. */
1466 			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1467 			       (((wtdma << 2) + pp) << 2));
1468 		}
1469 	}
1470 	dma->period_virt += delta;
1471 	if (dma->period_virt >= dma->nr_periods)
1472 		dma->period_virt -= dma->nr_periods;
1473 	dma->period_real = page;
1474 
1475 	if (delta != 1)
1476 		printk(KERN_WARNING "vortex: wt virt = %d, delta = %d\n",
1477 		       dma->period_virt, delta);
1478 
1479 	return delta;
1480 }
1481 
1482 #if 0
1483 static void
1484 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1485 {
1486 	int temp;
1487 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1488 	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1489 	*pos = temp & POS_MASK;
1490 }
1491 
1492 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1493 {
1494 	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1495 		 POS_SHIFT) & POS_MASK);
1496 }
1497 #endif
1498 static int inline vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1499 {
1500 	stream_t *dma = &vortex->dma_wt[wtdma];
1501 	int temp;
1502 
1503 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1504 	//temp = (temp & POS_MASK) + (((temp>>WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK)*(dma->cfg0&POS_MASK));
1505 	temp = (temp & POS_MASK) + ((dma->period_virt) * (dma->period_bytes));
1506 	return temp;
1507 }
1508 
1509 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1510 {
1511 	stream_t *dma = &vortex->dma_wt[wtdma];
1512 	int this_8 = 0, this_4 = 0;
1513 
1514 	switch (dma->fifo_status) {
1515 	case FIFO_START:
1516 		vortex_fifo_setwtvalid(vortex, wtdma,
1517 				       dma->fifo_enabled ? 1 : 0);
1518 		break;
1519 	case FIFO_STOP:
1520 		this_8 = 1;
1521 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1522 			dma->dma_ctrl);
1523 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1524 				      this_4, this_8,
1525 				      dma->fifo_enabled ? 1 : 0, 0);
1526 		break;
1527 	case FIFO_PAUSE:
1528 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1529 				      this_4, this_8,
1530 				      dma->fifo_enabled ? 1 : 0, 0);
1531 		break;
1532 	}
1533 	dma->fifo_status = FIFO_START;
1534 }
1535 
1536 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1537 {
1538 	stream_t *dma = &vortex->dma_wt[wtdma];
1539 
1540 	int this_8 = 0, this_4 = 0;
1541 	switch (dma->fifo_status) {
1542 	case FIFO_STOP:
1543 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1544 			dma->dma_ctrl);
1545 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1546 				      this_4, this_8,
1547 				      dma->fifo_enabled ? 1 : 0, 0);
1548 		break;
1549 	case FIFO_PAUSE:
1550 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1551 				      this_4, this_8,
1552 				      dma->fifo_enabled ? 1 : 0, 0);
1553 		break;
1554 	}
1555 	dma->fifo_status = FIFO_START;
1556 }
1557 
1558 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1559 {
1560 	stream_t *dma = &vortex->dma_wt[wtdma];
1561 
1562 	int this_8 = 0, this_4 = 0;
1563 	switch (dma->fifo_status) {
1564 	case FIFO_START:
1565 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1566 				      this_4, this_8, 0, 0);
1567 		break;
1568 	case FIFO_STOP:
1569 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1570 			dma->dma_ctrl);
1571 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1572 				      this_4, this_8, 0, 0);
1573 		break;
1574 	}
1575 	dma->fifo_status = FIFO_PAUSE;
1576 }
1577 
1578 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1579 {
1580 	stream_t *dma = &vortex->dma_wt[wtdma];
1581 
1582 	int this_4 = 0, this_8 = 0;
1583 	if (dma->fifo_status == FIFO_START)
1584 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1585 				      this_4, this_8, 0, 0);
1586 	else if (dma->fifo_status == FIFO_STOP)
1587 		return;
1588 	dma->fifo_status = FIFO_STOP;
1589 	dma->fifo_enabled = 0;
1590 }
1591 
1592 #endif
1593 /* ADB Routes */
1594 
1595 typedef int ADBRamLink;
1596 static void vortex_adb_init(vortex_t * vortex)
1597 {
1598 	int i;
1599 	/* it looks like we are writing more than we need to...
1600 	 * if we write what we are supposed to it breaks things... */
1601 	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1602 	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1603 		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1604 			hwread(vortex->mmio,
1605 			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1606 	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1607 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1608 			hwread(vortex->mmio,
1609 			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1610 	}
1611 }
1612 
1613 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1614 {
1615 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1616 		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1617 }
1618 
1619 static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1620 {
1621 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1622 		hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1623 }
1624 
1625 static void
1626 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1627 		     ADBRamLink * route, int rnum)
1628 {
1629 	int temp, prev, lifeboat = 0;
1630 
1631 	if ((rnum <= 0) || (route == NULL))
1632 		return;
1633 	/* Write last routes. */
1634 	rnum--;
1635 	hwwrite(vortex->mmio,
1636 		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1637 		ROUTE_MASK);
1638 	while (rnum > 0) {
1639 		hwwrite(vortex->mmio,
1640 			VORTEX_ADB_RTBASE +
1641 			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1642 		rnum--;
1643 	}
1644 	/* Write first route. */
1645 	temp =
1646 	    hwread(vortex->mmio,
1647 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1648 	if (temp == ADB_MASK) {
1649 		/* First entry on this channel. */
1650 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1651 			route[0]);
1652 		vortex_adb_en_sr(vortex, channel);
1653 		return;
1654 	}
1655 	/* Not first entry on this channel. Need to link. */
1656 	do {
1657 		prev = temp;
1658 		temp =
1659 		    hwread(vortex->mmio,
1660 			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1661 		if ((lifeboat++) > ADB_MASK) {
1662 			printk(KERN_ERR
1663 			       "vortex_adb_addroutes: unending route! 0x%x\n",
1664 			       *route);
1665 			return;
1666 		}
1667 	}
1668 	while (temp != ADB_MASK);
1669 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1670 }
1671 
1672 static void
1673 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1674 		     ADBRamLink route0, ADBRamLink route1)
1675 {
1676 	int temp, lifeboat = 0, prev;
1677 
1678 	/* Find route. */
1679 	temp =
1680 	    hwread(vortex->mmio,
1681 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1682 	if (temp == (route0 & ADB_MASK)) {
1683 		temp =
1684 		    hwread(vortex->mmio,
1685 			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1686 		if ((temp & ADB_MASK) == ADB_MASK)
1687 			vortex_adb_dis_sr(vortex, channel);
1688 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1689 			temp);
1690 		return;
1691 	}
1692 	do {
1693 		prev = temp;
1694 		temp =
1695 		    hwread(vortex->mmio,
1696 			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1697 		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1698 			printk(KERN_ERR
1699 			       "vortex_adb_delroutes: route not found! 0x%x\n",
1700 			       route0);
1701 			return;
1702 		}
1703 	}
1704 	while (temp != (route0 & ADB_MASK));
1705 	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1706 	if ((temp & ADB_MASK) == route1)
1707 		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1708 	/* Make bridge over deleted route. */
1709 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1710 }
1711 
1712 static void
1713 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1714 	     unsigned char source, unsigned char dest)
1715 {
1716 	ADBRamLink route;
1717 
1718 	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1719 	if (en) {
1720 		vortex_adb_addroutes(vortex, channel, &route, 1);
1721 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1722 		    && (source >= OFFSET_SRCOUT))
1723 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1724 					  channel);
1725 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1726 			 && (source >= OFFSET_MIXOUT))
1727 			vortex_mixer_addWTD(vortex,
1728 					    (source - OFFSET_MIXOUT), channel);
1729 	} else {
1730 		vortex_adb_delroutes(vortex, channel, route, route);
1731 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1732 		    && (source >= OFFSET_SRCOUT))
1733 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1734 					  channel);
1735 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1736 			 && (source >= OFFSET_MIXOUT))
1737 			vortex_mixer_delWTD(vortex,
1738 					    (source - OFFSET_MIXOUT), channel);
1739 	}
1740 }
1741 
1742 #if 0
1743 static void
1744 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1745 	      unsigned char source, unsigned char dest0, unsigned char dest1)
1746 {
1747 	ADBRamLink route[2];
1748 
1749 	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1750 	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1751 
1752 	if (en) {
1753 		vortex_adb_addroutes(vortex, channel, route, 2);
1754 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1755 		    && (source >= (OFFSET_SRCOUT)))
1756 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1757 					  channel);
1758 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1759 			 && (source >= (OFFSET_MIXOUT)))
1760 			vortex_mixer_addWTD(vortex,
1761 					    (source - OFFSET_MIXOUT), channel);
1762 	} else {
1763 		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1764 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1765 		    && (source >= (OFFSET_SRCOUT)))
1766 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1767 					  channel);
1768 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1769 			 && (source >= (OFFSET_MIXOUT)))
1770 			vortex_mixer_delWTD(vortex,
1771 					    (source - OFFSET_MIXOUT), channel);
1772 	}
1773 }
1774 
1775 #endif
1776 /* Route two sources to same target. Sources must be of same class !!! */
1777 static void
1778 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1779 		unsigned char source0, unsigned char source1,
1780 		unsigned char dest)
1781 {
1782 	ADBRamLink route[2];
1783 
1784 	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1785 	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1786 
1787 	if (dest < 0x10)
1788 		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1789 
1790 	if (en) {
1791 		vortex_adb_addroutes(vortex, ch, route, 2);
1792 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1793 		    && (source0 >= OFFSET_SRCOUT)) {
1794 			vortex_src_addWTD(vortex,
1795 					  (source0 - OFFSET_SRCOUT), ch);
1796 			vortex_src_addWTD(vortex,
1797 					  (source1 - OFFSET_SRCOUT), ch);
1798 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1799 			   && (source0 >= OFFSET_MIXOUT)) {
1800 			vortex_mixer_addWTD(vortex,
1801 					    (source0 - OFFSET_MIXOUT), ch);
1802 			vortex_mixer_addWTD(vortex,
1803 					    (source1 - OFFSET_MIXOUT), ch);
1804 		}
1805 	} else {
1806 		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1807 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1808 		    && (source0 >= OFFSET_SRCOUT)) {
1809 			vortex_src_delWTD(vortex,
1810 					  (source0 - OFFSET_SRCOUT), ch);
1811 			vortex_src_delWTD(vortex,
1812 					  (source1 - OFFSET_SRCOUT), ch);
1813 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1814 			   && (source0 >= OFFSET_MIXOUT)) {
1815 			vortex_mixer_delWTD(vortex,
1816 					    (source0 - OFFSET_MIXOUT), ch);
1817 			vortex_mixer_delWTD(vortex,
1818 					    (source1 - OFFSET_MIXOUT), ch);
1819 		}
1820 	}
1821 }
1822 
1823 /* Connection stuff */
1824 
1825 // Connect adbdma to src('s).
1826 static void
1827 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1828 			     unsigned char adbdma, unsigned char src)
1829 {
1830 	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1831 }
1832 
1833 // Connect SRC to mixin.
1834 static void
1835 vortex_connection_src_mixin(vortex_t * vortex, int en,
1836 			    unsigned char channel, unsigned char src,
1837 			    unsigned char mixin)
1838 {
1839 	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1840 }
1841 
1842 // Connect mixin with mix output.
1843 static void
1844 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1845 			    unsigned char mix, int a)
1846 {
1847 	if (en) {
1848 		vortex_mix_enableinput(vortex, mix, mixin);
1849 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1850 	} else
1851 		vortex_mix_disableinput(vortex, mix, mixin, a);
1852 }
1853 
1854 // Connect absolut address to mixin.
1855 static void
1856 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1857 			    unsigned char channel, unsigned char source,
1858 			    unsigned char mixin)
1859 {
1860 	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1861 }
1862 
1863 static void
1864 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1865 			     unsigned char src, unsigned char adbdma)
1866 {
1867 	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1868 }
1869 
1870 static void
1871 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1872 				 unsigned char ch, unsigned char src0,
1873 				 unsigned char src1, unsigned char adbdma)
1874 {
1875 
1876 	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1877 			ADB_DMA(adbdma));
1878 }
1879 
1880 // mix to absolut address.
1881 static void
1882 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1883 			  unsigned char mix, unsigned char dest)
1884 {
1885 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1886 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1887 }
1888 
1889 // mixer to src.
1890 static void
1891 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1892 			  unsigned char mix, unsigned char src)
1893 {
1894 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1895 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1896 }
1897 
1898 #if 0
1899 static void
1900 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1901 				 unsigned char channel,
1902 				 unsigned char adbdma, unsigned char src0,
1903 				 unsigned char src1)
1904 {
1905 	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1906 		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1907 }
1908 
1909 // Connect two mix to AdbDma.
1910 static void
1911 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1912 				 unsigned char ch, unsigned char mix0,
1913 				 unsigned char mix1, unsigned char adbdma)
1914 {
1915 
1916 	ADBRamLink routes[2];
1917 	routes[0] =
1918 	    (((mix0 +
1919 	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1920 	routes[1] =
1921 	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1922 								   0x20) &
1923 								  ADB_MASK);
1924 	if (en) {
1925 		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1926 		vortex_mixer_addWTD(vortex, mix0, ch);
1927 		vortex_mixer_addWTD(vortex, mix1, ch);
1928 	} else {
1929 		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1930 		vortex_mixer_delWTD(vortex, mix0, ch);
1931 		vortex_mixer_delWTD(vortex, mix1, ch);
1932 	}
1933 }
1934 #endif
1935 
1936 /* CODEC connect. */
1937 
1938 static void
1939 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1940 {
1941 #ifdef CHIP_AU8820
1942 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1943 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1944 #else
1945 #if 1
1946 	// Connect front channels through EQ.
1947 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1948 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1949 	/* Lower volume, since EQ has some gain. */
1950 	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1951 	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1952 	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1953 	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1954 
1955 	/* Check if reg 0x28 has SDAC bit set. */
1956 	if (VORTEX_IS_QUAD(vortex)) {
1957 		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1958 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1959 					  ADB_CODECOUT(0 + 4));
1960 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1961 					  ADB_CODECOUT(1 + 4));
1962 		//printk("SDAC detected ");
1963 	}
1964 #else
1965 	// Use plain direct output to codec.
1966 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1967 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1968 #endif
1969 #endif
1970 }
1971 
1972 static void
1973 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1974 			unsigned char mixin1)
1975 {
1976 	/*
1977 	   Enable: 0x1, 0x1
1978 	   Channel: 0x11, 0x11
1979 	   ADB Source address: 0x48, 0x49
1980 	   Destination Asp4Topology_0x9c,0x98
1981 	 */
1982 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1983 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1984 }
1985 
1986 // Higher level ADB audio path (de)allocator.
1987 
1988 /* Resource manager */
1989 static int resnum[VORTEX_RESOURCE_LAST] =
1990     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
1991 /*
1992  Checkout/Checkin resource of given type.
1993  resmap: resource map to be used. If NULL means that we want to allocate
1994  a DMA resource (root of all other resources of a dma channel).
1995  out: Mean checkout if != 0. Else mean Checkin resource.
1996  restype: Indicates type of resource to be checked in or out.
1997 */
1998 static char
1999 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2000 {
2001 	int i, qty = resnum[restype], resinuse = 0;
2002 
2003 	if (out) {
2004 		/* Gather used resources by all streams. */
2005 		for (i = 0; i < NR_ADB; i++) {
2006 			resinuse |= vortex->dma_adb[i].resources[restype];
2007 		}
2008 		resinuse |= vortex->fixed_res[restype];
2009 		/* Find and take free resource. */
2010 		for (i = 0; i < qty; i++) {
2011 			if ((resinuse & (1 << i)) == 0) {
2012 				if (resmap != NULL)
2013 					resmap[restype] |= (1 << i);
2014 				else
2015 					vortex->dma_adb[i].resources[restype] |= (1 << i);
2016 				//printk("vortex: ResManager: type %d out %d\n", restype, i);
2017 				return i;
2018 			}
2019 		}
2020 	} else {
2021 		if (resmap == NULL)
2022 			return -EINVAL;
2023 		/* Checkin first resource of type restype. */
2024 		for (i = 0; i < qty; i++) {
2025 			if (resmap[restype] & (1 << i)) {
2026 				resmap[restype] &= ~(1 << i);
2027 				//printk("vortex: ResManager: type %d in %d\n",restype, i);
2028 				return i;
2029 			}
2030 		}
2031 	}
2032 	printk(KERN_ERR "vortex: FATAL: ResManager: resource type %d exhausted.\n", restype);
2033 	return -ENOMEM;
2034 }
2035 
2036 /* Default Connections  */
2037 static int
2038 vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type);
2039 
2040 static void vortex_connect_default(vortex_t * vortex, int en)
2041 {
2042 	// Connect AC97 codec.
2043 	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2044 				  VORTEX_RESOURCE_MIXOUT);
2045 	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2046 				  VORTEX_RESOURCE_MIXOUT);
2047 	if (VORTEX_IS_QUAD(vortex)) {
2048 		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2049 					  VORTEX_RESOURCE_MIXOUT);
2050 		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2051 					  VORTEX_RESOURCE_MIXOUT);
2052 	}
2053 	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2054 
2055 	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2056 				  VORTEX_RESOURCE_MIXIN);
2057 	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2058 				  VORTEX_RESOURCE_MIXIN);
2059 	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2060 
2061 	// Connect SPDIF
2062 #ifndef CHIP_AU8820
2063 	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2064 				  VORTEX_RESOURCE_MIXOUT);
2065 	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2066 				  VORTEX_RESOURCE_MIXOUT);
2067 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2068 				  ADB_SPDIFOUT(0));
2069 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2070 				  ADB_SPDIFOUT(1));
2071 #endif
2072 	// Connect WT
2073 #ifndef CHIP_AU8810
2074 	vortex_wt_connect(vortex, en);
2075 #endif
2076 	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2077 #ifndef CHIP_AU8820
2078 	vortex_Vort3D_connect(vortex, en);
2079 #endif
2080 	// Connect I2S
2081 
2082 	// Connect DSP interface for SQ3500 turbo (not here i think...)
2083 
2084 	// Connect AC98 modem codec
2085 
2086 }
2087 
2088 /*
2089   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2090   are deallocated.
2091   dma: DMA engine routes to be deallocated when dma >= 0.
2092   nr_ch: Number of channels to be de/allocated.
2093   dir: direction of stream. Uses same values as substream->stream.
2094   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2095   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2096 */
2097 static int
2098 vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type)
2099 {
2100 	stream_t *stream;
2101 	int i, en;
2102 
2103 	if ((nr_ch == 3)
2104 	    || ((dir == SNDRV_PCM_STREAM_CAPTURE) && (nr_ch > 2)))
2105 		return -EBUSY;
2106 
2107 	if (dma >= 0) {
2108 		en = 0;
2109 		vortex_adb_checkinout(vortex,
2110 				      vortex->dma_adb[dma].resources, en,
2111 				      VORTEX_RESOURCE_DMA);
2112 	} else {
2113 		en = 1;
2114 		if ((dma =
2115 		     vortex_adb_checkinout(vortex, NULL, en,
2116 					   VORTEX_RESOURCE_DMA)) < 0)
2117 			return -EBUSY;
2118 	}
2119 
2120 	stream = &vortex->dma_adb[dma];
2121 	stream->dma = dma;
2122 	stream->dir = dir;
2123 	stream->type = type;
2124 
2125 	/* PLAYBACK ROUTES. */
2126 	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2127 		int src[4], mix[4], ch_top;
2128 #ifndef CHIP_AU8820
2129 		int a3d = 0;
2130 #endif
2131 		/* Get SRC and MIXER hardware resources. */
2132 		if (stream->type != VORTEX_PCM_SPDIF) {
2133 			for (i = 0; i < nr_ch; i++) {
2134 				if ((src[i] = vortex_adb_checkinout(vortex,
2135 							   stream->resources, en,
2136 							   VORTEX_RESOURCE_SRC)) < 0) {
2137 					memset(stream->resources, 0,
2138 					       sizeof(unsigned char) *
2139 					       VORTEX_RESOURCE_LAST);
2140 					return -EBUSY;
2141 				}
2142 				if (stream->type != VORTEX_PCM_A3D) {
2143 					if ((mix[i] = vortex_adb_checkinout(vortex,
2144 								   stream->resources,
2145 								   en,
2146 								   VORTEX_RESOURCE_MIXIN)) < 0) {
2147 						memset(stream->resources,
2148 						       0,
2149 						       sizeof(unsigned char) * VORTEX_RESOURCE_LAST);
2150 						return -EBUSY;
2151 					}
2152 				}
2153 			}
2154 		}
2155 #ifndef CHIP_AU8820
2156 		if (stream->type == VORTEX_PCM_A3D) {
2157 			if ((a3d =
2158 			     vortex_adb_checkinout(vortex,
2159 						   stream->resources, en,
2160 						   VORTEX_RESOURCE_A3D)) < 0) {
2161 				memset(stream->resources, 0,
2162 				       sizeof(unsigned char) *
2163 				       VORTEX_RESOURCE_LAST);
2164 				printk(KERN_ERR "vortex: out of A3D sources. Sorry\n");
2165 				return -EBUSY;
2166 			}
2167 			/* (De)Initialize A3D hardware source. */
2168 			vortex_Vort3D_InitializeSource(&(vortex->a3d[a3d]), en);
2169 		}
2170 		/* Make SPDIF out exclusive to "spdif" device when in use. */
2171 		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2172 			vortex_route(vortex, 0, 0x14,
2173 				     ADB_MIXOUT(vortex->mixspdif[0]),
2174 				     ADB_SPDIFOUT(0));
2175 			vortex_route(vortex, 0, 0x14,
2176 				     ADB_MIXOUT(vortex->mixspdif[1]),
2177 				     ADB_SPDIFOUT(1));
2178 		}
2179 #endif
2180 		/* Make playback routes. */
2181 		for (i = 0; i < nr_ch; i++) {
2182 			if (stream->type == VORTEX_PCM_ADB) {
2183 				vortex_connection_adbdma_src(vortex, en,
2184 							     src[nr_ch - 1],
2185 							     dma,
2186 							     src[i]);
2187 				vortex_connection_src_mixin(vortex, en,
2188 							    0x11, src[i],
2189 							    mix[i]);
2190 				vortex_connection_mixin_mix(vortex, en,
2191 							    mix[i],
2192 							    MIX_PLAYB(i), 0);
2193 #ifndef CHIP_AU8820
2194 				vortex_connection_mixin_mix(vortex, en,
2195 							    mix[i],
2196 							    MIX_SPDIF(i % 2), 0);
2197 				vortex_mix_setinputvolumebyte(vortex,
2198 							      MIX_SPDIF(i % 2),
2199 							      mix[i],
2200 							      MIX_DEFIGAIN);
2201 #endif
2202 			}
2203 #ifndef CHIP_AU8820
2204 			if (stream->type == VORTEX_PCM_A3D) {
2205 				vortex_connection_adbdma_src(vortex, en,
2206 							     src[nr_ch - 1],
2207 								 dma,
2208 							     src[i]);
2209 				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2210 				/* XTalk test. */
2211 				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2212 				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2213 			}
2214 			if (stream->type == VORTEX_PCM_SPDIF)
2215 				vortex_route(vortex, en, 0x14,
2216 					     ADB_DMA(stream->dma),
2217 					     ADB_SPDIFOUT(i));
2218 #endif
2219 		}
2220 		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2221 			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2222 			for (i = nr_ch; i < ch_top; i++) {
2223 				vortex_connection_mixin_mix(vortex, en,
2224 							    mix[i % nr_ch],
2225 							    MIX_PLAYB(i), 0);
2226 #ifndef CHIP_AU8820
2227 				vortex_connection_mixin_mix(vortex, en,
2228 							    mix[i % nr_ch],
2229 							    MIX_SPDIF(i % 2),
2230 								0);
2231 				vortex_mix_setinputvolumebyte(vortex,
2232 							      MIX_SPDIF(i % 2),
2233 							      mix[i % nr_ch],
2234 							      MIX_DEFIGAIN);
2235 #endif
2236 			}
2237 		}
2238 #ifndef CHIP_AU8820
2239 		else {
2240 			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2241 				vortex_route(vortex, en, 0x14,
2242 					     ADB_DMA(stream->dma),
2243 					     ADB_SPDIFOUT(1));
2244 		}
2245 		/* Reconnect SPDIF out when "spdif" device is down. */
2246 		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2247 			vortex_route(vortex, 1, 0x14,
2248 				     ADB_MIXOUT(vortex->mixspdif[0]),
2249 				     ADB_SPDIFOUT(0));
2250 			vortex_route(vortex, 1, 0x14,
2251 				     ADB_MIXOUT(vortex->mixspdif[1]),
2252 				     ADB_SPDIFOUT(1));
2253 		}
2254 #endif
2255 	/* CAPTURE ROUTES. */
2256 	} else {
2257 		int src[2], mix[2];
2258 
2259 		/* Get SRC and MIXER hardware resources. */
2260 		for (i = 0; i < nr_ch; i++) {
2261 			if ((mix[i] =
2262 			     vortex_adb_checkinout(vortex,
2263 						   stream->resources, en,
2264 						   VORTEX_RESOURCE_MIXOUT))
2265 			    < 0) {
2266 				memset(stream->resources, 0,
2267 				       sizeof(unsigned char) *
2268 				       VORTEX_RESOURCE_LAST);
2269 				return -EBUSY;
2270 			}
2271 			if ((src[i] =
2272 			     vortex_adb_checkinout(vortex,
2273 						   stream->resources, en,
2274 						   VORTEX_RESOURCE_SRC)) < 0) {
2275 				memset(stream->resources, 0,
2276 				       sizeof(unsigned char) *
2277 				       VORTEX_RESOURCE_LAST);
2278 				return -EBUSY;
2279 			}
2280 		}
2281 
2282 		/* Make capture routes. */
2283 		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2284 		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2285 		if (nr_ch == 1) {
2286 			vortex_connection_mixin_mix(vortex, en,
2287 						    MIX_CAPT(1), mix[0], 0);
2288 			vortex_connection_src_adbdma(vortex, en,
2289 						     src[0],
2290 						     src[0], dma);
2291 		} else {
2292 			vortex_connection_mixin_mix(vortex, en,
2293 						    MIX_CAPT(1), mix[1], 0);
2294 			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2295 						  src[1]);
2296 			vortex_connection_src_src_adbdma(vortex, en,
2297 							 src[1], src[0],
2298 							 src[1], dma);
2299 		}
2300 	}
2301 	vortex->dma_adb[dma].nr_ch = nr_ch;
2302 
2303 #if 0
2304 	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2305 	if (nr_ch < 4) {
2306 		/* Copy stereo to rear channel (surround) */
2307 		snd_ac97_write_cache(vortex->codec,
2308 				     AC97_SIGMATEL_DAC2INVERT,
2309 				     snd_ac97_read(vortex->codec,
2310 						   AC97_SIGMATEL_DAC2INVERT)
2311 				     | 4);
2312 	} else {
2313 		/* Allow separate front and rear channels. */
2314 		snd_ac97_write_cache(vortex->codec,
2315 				     AC97_SIGMATEL_DAC2INVERT,
2316 				     snd_ac97_read(vortex->codec,
2317 						   AC97_SIGMATEL_DAC2INVERT)
2318 				     & ~((u32)
2319 					 4));
2320 	}
2321 #endif
2322 	return dma;
2323 }
2324 
2325 /*
2326  Set the SampleRate of the SRC's attached to the given DMA engine.
2327  */
2328 static void
2329 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2330 {
2331 	stream_t *stream = &(vortex->dma_adb[adbdma]);
2332 	int i, cvrt;
2333 
2334 	/* dir=1:play ; dir=0:rec */
2335 	if (dir)
2336 		cvrt = SRC_RATIO(rate, 48000);
2337 	else
2338 		cvrt = SRC_RATIO(48000, rate);
2339 
2340 	/* Setup SRC's */
2341 	for (i = 0; i < NR_SRC; i++) {
2342 		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2343 			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2344 	}
2345 }
2346 
2347 // Timer and ISR functions.
2348 
2349 static void vortex_settimer(vortex_t * vortex, int period)
2350 {
2351 	//set the timer period to <period> 48000ths of a second.
2352 	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2353 }
2354 
2355 #if 0
2356 static void vortex_enable_timer_int(vortex_t * card)
2357 {
2358 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2359 		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2360 }
2361 
2362 static void vortex_disable_timer_int(vortex_t * card)
2363 {
2364 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2365 		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2366 }
2367 
2368 #endif
2369 static void vortex_enable_int(vortex_t * card)
2370 {
2371 	// CAsp4ISR__EnableVortexInt_void_
2372 	hwwrite(card->mmio, VORTEX_CTRL,
2373 		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2374 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2375 		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2376 }
2377 
2378 static void vortex_disable_int(vortex_t * card)
2379 {
2380 	hwwrite(card->mmio, VORTEX_CTRL,
2381 		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2382 }
2383 
2384 static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2385 {
2386 	vortex_t *vortex = dev_id;
2387 	int i, handled;
2388 	u32 source;
2389 
2390 	//check if the interrupt is ours.
2391 	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2392 		return IRQ_NONE;
2393 
2394 	// This is the Interrupt Enable flag we set before (consistency check).
2395 	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2396 		return IRQ_NONE;
2397 
2398 	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2399 	// Reset IRQ flags.
2400 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2401 	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2402 	// Is at least one IRQ flag set?
2403 	if (source == 0) {
2404 		printk(KERN_ERR "vortex: missing irq source\n");
2405 		return IRQ_NONE;
2406 	}
2407 
2408 	handled = 0;
2409 	// Attend every interrupt source.
2410 	if (unlikely(source & IRQ_ERR_MASK)) {
2411 		if (source & IRQ_FATAL) {
2412 			printk(KERN_ERR "vortex: IRQ fatal error\n");
2413 		}
2414 		if (source & IRQ_PARITY) {
2415 			printk(KERN_ERR "vortex: IRQ parity error\n");
2416 		}
2417 		if (source & IRQ_REG) {
2418 			printk(KERN_ERR "vortex: IRQ reg error\n");
2419 		}
2420 		if (source & IRQ_FIFO) {
2421 			printk(KERN_ERR "vortex: IRQ fifo error\n");
2422 		}
2423 		if (source & IRQ_DMA) {
2424 			printk(KERN_ERR "vortex: IRQ dma error\n");
2425 		}
2426 		handled = 1;
2427 	}
2428 	if (source & IRQ_PCMOUT) {
2429 		/* ALSA period acknowledge. */
2430 		spin_lock(&vortex->lock);
2431 		for (i = 0; i < NR_ADB; i++) {
2432 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2433 				if (vortex_adbdma_bufshift(vortex, i)) ;
2434 				spin_unlock(&vortex->lock);
2435 				snd_pcm_period_elapsed(vortex->dma_adb[i].
2436 						       substream);
2437 				spin_lock(&vortex->lock);
2438 			}
2439 		}
2440 #ifndef CHIP_AU8810
2441 		for (i = 0; i < NR_WT; i++) {
2442 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2443 				if (vortex_wtdma_bufshift(vortex, i)) ;
2444 				spin_unlock(&vortex->lock);
2445 				snd_pcm_period_elapsed(vortex->dma_wt[i].
2446 						       substream);
2447 				spin_lock(&vortex->lock);
2448 			}
2449 		}
2450 #endif
2451 		spin_unlock(&vortex->lock);
2452 		handled = 1;
2453 	}
2454 	//Acknowledge the Timer interrupt
2455 	if (source & IRQ_TIMER) {
2456 		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2457 		handled = 1;
2458 	}
2459 	if (source & IRQ_MIDI) {
2460 		snd_mpu401_uart_interrupt(vortex->irq,
2461 					  vortex->rmidi->private_data);
2462 		handled = 1;
2463 	}
2464 
2465 	if (!handled) {
2466 		printk(KERN_ERR "vortex: unknown irq source %x\n", source);
2467 	}
2468 	return IRQ_RETVAL(handled);
2469 }
2470 
2471 /* Codec */
2472 
2473 #define POLL_COUNT 1000
2474 static void vortex_codec_init(vortex_t * vortex)
2475 {
2476 	int i;
2477 
2478 	for (i = 0; i < 32; i++) {
2479 		/* the windows driver writes -i, so we write -i */
2480 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2481 		msleep(2);
2482 	}
2483 	if (0) {
2484 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2485 		msleep(1);
2486 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2487 		msleep(1);
2488 	} else {
2489 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2490 		msleep(2);
2491 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2492 		msleep(2);
2493 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2494 		msleep(2);
2495 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2496 		msleep(2);
2497 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2498 		msleep(2);
2499 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2500 	}
2501 	for (i = 0; i < 32; i++) {
2502 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2503 		msleep(5);
2504 	}
2505 	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2506 	msleep(1);
2507 	/* Enable codec channels 0 and 1. */
2508 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2509 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2510 }
2511 
2512 static void
2513 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2514 {
2515 
2516 	vortex_t *card = (vortex_t *) codec->private_data;
2517 	unsigned int lifeboat = 0;
2518 
2519 	/* wait for transactions to clear */
2520 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2521 		udelay(100);
2522 		if (lifeboat++ > POLL_COUNT) {
2523 			printk(KERN_ERR "vortex: ac97 codec stuck busy\n");
2524 			return;
2525 		}
2526 	}
2527 	/* write register */
2528 	hwwrite(card->mmio, VORTEX_CODEC_IO,
2529 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2530 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2531 		VORTEX_CODEC_WRITE |
2532 		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2533 
2534 	/* Flush Caches. */
2535 	hwread(card->mmio, VORTEX_CODEC_IO);
2536 }
2537 
2538 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2539 {
2540 
2541 	vortex_t *card = (vortex_t *) codec->private_data;
2542 	u32 read_addr, data;
2543 	unsigned lifeboat = 0;
2544 
2545 	/* wait for transactions to clear */
2546 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2547 		udelay(100);
2548 		if (lifeboat++ > POLL_COUNT) {
2549 			printk(KERN_ERR "vortex: ac97 codec stuck busy\n");
2550 			return 0xffff;
2551 		}
2552 	}
2553 	/* set up read address */
2554 	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2555 		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2556 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2557 
2558 	/* wait for address */
2559 	do {
2560 		udelay(100);
2561 		data = hwread(card->mmio, VORTEX_CODEC_IO);
2562 		if (lifeboat++ > POLL_COUNT) {
2563 			printk(KERN_ERR "vortex: ac97 address never arrived\n");
2564 			return 0xffff;
2565 		}
2566 	} while ((data & VORTEX_CODEC_ADDMASK) !=
2567 		 (addr << VORTEX_CODEC_ADDSHIFT));
2568 
2569 	/* return data. */
2570 	return (u16) (data & VORTEX_CODEC_DATMASK);
2571 }
2572 
2573 /* SPDIF support  */
2574 
2575 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2576 {
2577 	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2578 
2579 	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2580 	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2581 		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2582 	//for (i=0x291D4; i<0x29200; i+=4)
2583 	for (i = 0; i < 11; i++)
2584 		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2585 	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2586 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2587 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2588 
2589 	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2590 	if (this_04 && this_08) {
2591 		int edi;
2592 
2593 		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2594 		if (i > 0x800) {
2595 			if (i < 0x1ffff)
2596 				edi = (i >> 1);
2597 			else
2598 				edi = 0x1ffff;
2599 		} else {
2600 			i = edi = 0x800;
2601 		}
2602 		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2603 		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2604 					this_0c, 1, 0, edi, 1);
2605 		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2606 					this_0c, 1, 0, edi, 1);
2607 	}
2608 
2609 	i = spdif_sr;
2610 	spdif_sr |= 0x8c;
2611 	switch (i) {
2612 	case 32000:
2613 		this_38 &= 0xFFFFFFFE;
2614 		this_38 &= 0xFFFFFFFD;
2615 		this_38 &= 0xF3FFFFFF;
2616 		this_38 |= 0x03000000;	/* set 32khz samplerate */
2617 		this_38 &= 0xFFFFFF3F;
2618 		spdif_sr &= 0xFFFFFFFD;
2619 		spdif_sr |= 1;
2620 		break;
2621 	case 44100:
2622 		this_38 &= 0xFFFFFFFE;
2623 		this_38 &= 0xFFFFFFFD;
2624 		this_38 &= 0xF0FFFFFF;
2625 		this_38 |= 0x03000000;
2626 		this_38 &= 0xFFFFFF3F;
2627 		spdif_sr &= 0xFFFFFFFC;
2628 		break;
2629 	case 48000:
2630 		if (spdif_mode == 1) {
2631 			this_38 &= 0xFFFFFFFE;
2632 			this_38 &= 0xFFFFFFFD;
2633 			this_38 &= 0xF2FFFFFF;
2634 			this_38 |= 0x02000000;	/* set 48khz samplerate */
2635 			this_38 &= 0xFFFFFF3F;
2636 		} else {
2637 			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2638 			this_38 |= 0x00000003;
2639 			this_38 &= 0xFFFFFFBF;
2640 			this_38 |= 0x80;
2641 		}
2642 		spdif_sr |= 2;
2643 		spdif_sr &= 0xFFFFFFFE;
2644 		break;
2645 
2646 	}
2647 	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2648 	   registers. seems to be for the standard IEC/SPDIF initialization
2649 	   stuff */
2650 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2651 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2652 	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2653 }
2654 
2655 /* Initialization */
2656 
2657 static int __devinit vortex_core_init(vortex_t * vortex)
2658 {
2659 
2660 	printk(KERN_INFO "Vortex: init.... ");
2661 	/* Hardware Init. */
2662 	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2663 	msleep(5);
2664 	hwwrite(vortex->mmio, VORTEX_CTRL,
2665 		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2666 	msleep(5);
2667 	/* Reset IRQ flags */
2668 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2669 	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2670 
2671 	vortex_codec_init(vortex);
2672 
2673 #ifdef CHIP_AU8830
2674 	hwwrite(vortex->mmio, VORTEX_CTRL,
2675 		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2676 #endif
2677 
2678 	/* Init audio engine. */
2679 	vortex_adbdma_init(vortex);
2680 	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2681 	vortex_adb_init(vortex);
2682 	/* Init processing blocks. */
2683 	vortex_fifo_init(vortex);
2684 	vortex_mixer_init(vortex);
2685 	vortex_srcblock_init(vortex);
2686 #ifndef CHIP_AU8820
2687 	vortex_eq_init(vortex);
2688 	vortex_spdif_init(vortex, 48000, 1);
2689 	vortex_Vort3D_enable(vortex);
2690 #endif
2691 #ifndef CHIP_AU8810
2692 	vortex_wt_init(vortex);
2693 #endif
2694 	// Moved to au88x0.c
2695 	//vortex_connect_default(vortex, 1);
2696 
2697 	vortex_settimer(vortex, 0x90);
2698 	// Enable Interrupts.
2699 	// vortex_enable_int() must be first !!
2700 	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2701 	// vortex_enable_int(vortex);
2702 	//vortex_enable_timer_int(vortex);
2703 	//vortex_disable_timer_int(vortex);
2704 
2705 	printk(KERN_INFO "done.\n");
2706 	spin_lock_init(&vortex->lock);
2707 
2708 	return 0;
2709 }
2710 
2711 static int vortex_core_shutdown(vortex_t * vortex)
2712 {
2713 
2714 	printk(KERN_INFO "Vortex: shutdown...");
2715 #ifndef CHIP_AU8820
2716 	vortex_eq_free(vortex);
2717 	vortex_Vort3D_disable(vortex);
2718 #endif
2719 	//vortex_disable_timer_int(vortex);
2720 	vortex_disable_int(vortex);
2721 	vortex_connect_default(vortex, 0);
2722 	/* Reset all DMA fifos. */
2723 	vortex_fifo_init(vortex);
2724 	/* Erase all audio routes. */
2725 	vortex_adb_init(vortex);
2726 
2727 	/* Disable MPU401 */
2728 	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2729 	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2730 
2731 	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2732 	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2733 	msleep(5);
2734 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2735 
2736 	printk(KERN_INFO "done.\n");
2737 	return 0;
2738 }
2739 
2740 /* Alsa support. */
2741 
2742 static int vortex_alsafmt_aspfmt(int alsafmt)
2743 {
2744 	int fmt;
2745 
2746 	switch (alsafmt) {
2747 	case SNDRV_PCM_FORMAT_U8:
2748 		fmt = 0x1;
2749 		break;
2750 	case SNDRV_PCM_FORMAT_MU_LAW:
2751 		fmt = 0x2;
2752 		break;
2753 	case SNDRV_PCM_FORMAT_A_LAW:
2754 		fmt = 0x3;
2755 		break;
2756 	case SNDRV_PCM_FORMAT_SPECIAL:
2757 		fmt = 0x4;	/* guess. */
2758 		break;
2759 	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2760 		fmt = 0x5;	/* guess. */
2761 		break;
2762 	case SNDRV_PCM_FORMAT_S16_LE:
2763 		fmt = 0x8;
2764 		break;
2765 	case SNDRV_PCM_FORMAT_S16_BE:
2766 		fmt = 0x9;	/* check this... */
2767 		break;
2768 	default:
2769 		fmt = 0x8;
2770 		printk(KERN_ERR "vortex: format unsupported %d\n", alsafmt);
2771 		break;
2772 	}
2773 	return fmt;
2774 }
2775 
2776 /* Some not yet useful translations. */
2777 #if 0
2778 typedef enum {
2779 	ASPFMTLINEAR16 = 0,	/* 0x8 */
2780 	ASPFMTLINEAR8,		/* 0x1 */
2781 	ASPFMTULAW,		/* 0x2 */
2782 	ASPFMTALAW,		/* 0x3 */
2783 	ASPFMTSPORT,		/* ? */
2784 	ASPFMTSPDIF,		/* ? */
2785 } ASPENCODING;
2786 
2787 static int
2788 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2789 {
2790 	int a, this_194;
2791 
2792 	if ((bits != 8) || (bits != 16))
2793 		return -1;
2794 
2795 	switch (encod) {
2796 	case 0:
2797 		if (bits == 0x10)
2798 			a = 8;	// 16 bit
2799 		break;
2800 	case 1:
2801 		if (bits == 8)
2802 			a = 1;	// 8 bit
2803 		break;
2804 	case 2:
2805 		a = 2;		// U_LAW
2806 		break;
2807 	case 3:
2808 		a = 3;		// A_LAW
2809 		break;
2810 	}
2811 	switch (nch) {
2812 	case 1:
2813 		this_194 = 0;
2814 		break;
2815 	case 2:
2816 		this_194 = 1;
2817 		break;
2818 	case 4:
2819 		this_194 = 1;
2820 		break;
2821 	case 6:
2822 		this_194 = 1;
2823 		break;
2824 	}
2825 	return (a);
2826 }
2827 
2828 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2829 {
2830 	short int d, this_148;
2831 
2832 	d = ((bits >> 3) * nch);
2833 	this_148 = 0xbb80 / d;
2834 }
2835 #endif
2836