xref: /openbmc/linux/sound/pci/au88x0/au88x0_core.c (revision ee419653)
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 	/*
1139 	printk(KERN_DEBUG "vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n",
1140 	       dma->cfg0, dma->cfg1);
1141 	*/
1142 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1143 	hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1144 
1145 	vortex_adbdma_setfirstbuffer(vortex, adbdma);
1146 	vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1147 }
1148 
1149 static void
1150 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1151 		      int fmt, int d, u32 offset)
1152 {
1153 	stream_t *dma = &vortex->dma_adb[adbdma];
1154 
1155 	dma->dma_unknown = d;
1156 	dma->dma_ctrl =
1157 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1158 	/* Enable PCMOUT interrupts. */
1159 	dma->dma_ctrl =
1160 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1161 
1162 	dma->dma_ctrl =
1163 	    (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1164 	dma->dma_ctrl =
1165 	    (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1166 
1167 	hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1168 		dma->dma_ctrl);
1169 	hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1170 }
1171 
1172 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1173 {
1174 	stream_t *dma = &vortex->dma_adb[adbdma];
1175 	int page, p, pp, delta, i;
1176 
1177 	page =
1178 	    (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1179 	     ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1180 	if (dma->nr_periods >= 4)
1181 		delta = (page - dma->period_real) & 3;
1182 	else {
1183 		delta = (page - dma->period_real);
1184 		if (delta < 0)
1185 			delta += dma->nr_periods;
1186 	}
1187 	if (delta == 0)
1188 		return 0;
1189 
1190 	/* refresh hw page table */
1191 	if (dma->nr_periods > 4) {
1192 		for (i = 0; i < delta; i++) {
1193 			/* p: audio buffer page index */
1194 			p = dma->period_virt + i + 4;
1195 			if (p >= dma->nr_periods)
1196 				p -= dma->nr_periods;
1197 			/* pp: hardware DMA page index. */
1198 			pp = dma->period_real + i;
1199 			if (pp >= 4)
1200 				pp -= 4;
1201 			//hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1202 			hwwrite(vortex->mmio,
1203 				VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1204 				snd_pcm_sgbuf_get_addr(dma->substream,
1205 				dma->period_bytes * p));
1206 			/* Force write thru cache. */
1207 			hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1208 			       (((adbdma << 2) + pp) << 2));
1209 		}
1210 	}
1211 	dma->period_virt += delta;
1212 	dma->period_real = page;
1213 	if (dma->period_virt >= dma->nr_periods)
1214 		dma->period_virt -= dma->nr_periods;
1215 	if (delta != 1)
1216 		printk(KERN_INFO "vortex: %d virt=%d, real=%d, delta=%d\n",
1217 		       adbdma, dma->period_virt, dma->period_real, delta);
1218 
1219 	return delta;
1220 }
1221 
1222 
1223 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1224 	stream_t *dma = &vortex->dma_adb[adbdma];
1225 	int p, pp, i;
1226 
1227 	/* refresh hw page table */
1228 	for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1229 		/* p: audio buffer page index */
1230 		p = dma->period_virt + i;
1231 		if (p >= dma->nr_periods)
1232 			p -= dma->nr_periods;
1233 		/* pp: hardware DMA page index. */
1234 		pp = dma->period_real + i;
1235 		if (dma->nr_periods < 4) {
1236 			if (pp >= dma->nr_periods)
1237 				pp -= dma->nr_periods;
1238 		}
1239 		else {
1240 			if (pp >= 4)
1241 				pp -= 4;
1242 		}
1243 		hwwrite(vortex->mmio,
1244 			VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1245 			snd_pcm_sgbuf_get_addr(dma->substream,
1246 					       dma->period_bytes * p));
1247 		/* Force write thru cache. */
1248 		hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1249 	}
1250 }
1251 
1252 static int inline vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1253 {
1254 	stream_t *dma = &vortex->dma_adb[adbdma];
1255 	int temp;
1256 
1257 	temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1258 	temp = (dma->period_virt * dma->period_bytes) + (temp & POS_MASK);
1259 	return (temp);
1260 }
1261 
1262 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1263 {
1264 	int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1265 	stream_t *dma = &vortex->dma_adb[adbdma];
1266 
1267 	switch (dma->fifo_status) {
1268 	case FIFO_START:
1269 		vortex_fifo_setadbvalid(vortex, adbdma,
1270 					dma->fifo_enabled ? 1 : 0);
1271 		break;
1272 	case FIFO_STOP:
1273 		this_8 = 1;
1274 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1275 			dma->dma_ctrl);
1276 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1277 				       this_4, this_8,
1278 				       dma->fifo_enabled ? 1 : 0, 0);
1279 		break;
1280 	case FIFO_PAUSE:
1281 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1282 				       this_4, this_8,
1283 				       dma->fifo_enabled ? 1 : 0, 0);
1284 		break;
1285 	}
1286 	dma->fifo_status = FIFO_START;
1287 }
1288 
1289 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1290 {
1291 	stream_t *dma = &vortex->dma_adb[adbdma];
1292 
1293 	int this_8 = 1, this_4 = 0;
1294 	switch (dma->fifo_status) {
1295 	case FIFO_STOP:
1296 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1297 			dma->dma_ctrl);
1298 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1299 				       this_4, this_8,
1300 				       dma->fifo_enabled ? 1 : 0, 0);
1301 		break;
1302 	case FIFO_PAUSE:
1303 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1304 				       this_4, this_8,
1305 				       dma->fifo_enabled ? 1 : 0, 0);
1306 		break;
1307 	}
1308 	dma->fifo_status = FIFO_START;
1309 }
1310 
1311 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1312 {
1313 	stream_t *dma = &vortex->dma_adb[adbdma];
1314 
1315 	int this_8 = 0, this_4 = 0;
1316 	switch (dma->fifo_status) {
1317 	case FIFO_START:
1318 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1319 				       this_4, this_8, 0, 0);
1320 		break;
1321 	case FIFO_STOP:
1322 		hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1323 			dma->dma_ctrl);
1324 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1325 				       this_4, this_8, 0, 0);
1326 		break;
1327 	}
1328 	dma->fifo_status = FIFO_PAUSE;
1329 }
1330 
1331 #if 0				// Using pause instead
1332 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1333 {
1334 	stream_t *dma = &vortex->dma_adb[adbdma];
1335 
1336 	int this_4 = 0, this_8 = 0;
1337 	if (dma->fifo_status == FIFO_START)
1338 		vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1339 				       this_4, this_8, 0, 0);
1340 	else if (dma->fifo_status == FIFO_STOP)
1341 		return;
1342 	dma->fifo_status = FIFO_STOP;
1343 	dma->fifo_enabled = 0;
1344 }
1345 
1346 #endif
1347 /* WTDMA */
1348 
1349 #ifndef CHIP_AU8810
1350 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1351 {
1352 	//int this_7c=dma_ctrl;
1353 	stream_t *dma = &vortex->dma_wt[wtdma];
1354 
1355 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1356 }
1357 
1358 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1359 {
1360 	stream_t *dma = &vortex->dma_wt[wtdma];
1361 	//hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1362 	hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1363 		sb << ((0xf - (wtdma & 0xf)) * 2));
1364 	dma->period_real = dma->period_virt = sb;
1365 }
1366 
1367 static void
1368 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1369 			int psize, int count)
1370 {
1371 	stream_t *dma = &vortex->dma_wt[wtdma];
1372 
1373 	dma->period_bytes = psize;
1374 	dma->nr_periods = count;
1375 
1376 	dma->cfg0 = 0;
1377 	dma->cfg1 = 0;
1378 	switch (count) {
1379 		/* Four or more pages */
1380 	default:
1381 	case 4:
1382 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1383 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1384 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
1385 		/* 3 pages */
1386 	case 3:
1387 		dma->cfg0 |= 0x12000000;
1388 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1389 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1390 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
1391 		/* 2 pages */
1392 	case 2:
1393 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1394 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1395 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
1396 		/* 1 page */
1397 	case 1:
1398 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1399 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1400 			snd_pcm_sgbuf_get_addr(dma->substream, 0));
1401 		break;
1402 	}
1403 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1404 	hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1405 
1406 	vortex_wtdma_setfirstbuffer(vortex, wtdma);
1407 	vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1408 }
1409 
1410 static void
1411 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1412 		     /*int e, */ u32 offset)
1413 {
1414 	stream_t *dma = &vortex->dma_wt[wtdma];
1415 
1416 	//dma->this_08 = e;
1417 	dma->dma_unknown = d;
1418 	dma->dma_ctrl = 0;
1419 	dma->dma_ctrl =
1420 	    ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1421 	/* PCMOUT interrupt */
1422 	dma->dma_ctrl =
1423 	    (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1424 	/* Always playback. */
1425 	dma->dma_ctrl |= (1 << DIR_SHIFT);
1426 	/* Audio Format */
1427 	dma->dma_ctrl =
1428 	    (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1429 	/* Write into hardware */
1430 	hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1431 }
1432 
1433 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1434 {
1435 	stream_t *dma = &vortex->dma_wt[wtdma];
1436 	int page, p, pp, delta, i;
1437 
1438 	page =
1439 	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
1440 	     WT_SUBBUF_MASK)
1441 	    >> WT_SUBBUF_SHIFT;
1442 	if (dma->nr_periods >= 4)
1443 		delta = (page - dma->period_real) & 3;
1444 	else {
1445 		delta = (page - dma->period_real);
1446 		if (delta < 0)
1447 			delta += dma->nr_periods;
1448 	}
1449 	if (delta == 0)
1450 		return 0;
1451 
1452 	/* refresh hw page table */
1453 	if (dma->nr_periods > 4) {
1454 		for (i = 0; i < delta; i++) {
1455 			/* p: audio buffer page index */
1456 			p = dma->period_virt + i + 4;
1457 			if (p >= dma->nr_periods)
1458 				p -= dma->nr_periods;
1459 			/* pp: hardware DMA page index. */
1460 			pp = dma->period_real + i;
1461 			if (pp >= 4)
1462 				pp -= 4;
1463 			hwwrite(vortex->mmio,
1464 				VORTEX_WTDMA_BUFBASE +
1465 				(((wtdma << 2) + pp) << 2),
1466 				snd_pcm_sgbuf_get_addr(dma->substream,
1467 						       dma->period_bytes * p));
1468 			/* Force write thru cache. */
1469 			hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1470 			       (((wtdma << 2) + pp) << 2));
1471 		}
1472 	}
1473 	dma->period_virt += delta;
1474 	if (dma->period_virt >= dma->nr_periods)
1475 		dma->period_virt -= dma->nr_periods;
1476 	dma->period_real = page;
1477 
1478 	if (delta != 1)
1479 		printk(KERN_WARNING "vortex: wt virt = %d, delta = %d\n",
1480 		       dma->period_virt, delta);
1481 
1482 	return delta;
1483 }
1484 
1485 #if 0
1486 static void
1487 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1488 {
1489 	int temp;
1490 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1491 	*subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1492 	*pos = temp & POS_MASK;
1493 }
1494 
1495 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1496 {
1497 	return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1498 		 POS_SHIFT) & POS_MASK);
1499 }
1500 #endif
1501 static int inline vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1502 {
1503 	stream_t *dma = &vortex->dma_wt[wtdma];
1504 	int temp;
1505 
1506 	temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1507 	//temp = (temp & POS_MASK) + (((temp>>WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK)*(dma->cfg0&POS_MASK));
1508 	temp = (temp & POS_MASK) + ((dma->period_virt) * (dma->period_bytes));
1509 	return temp;
1510 }
1511 
1512 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1513 {
1514 	stream_t *dma = &vortex->dma_wt[wtdma];
1515 	int this_8 = 0, this_4 = 0;
1516 
1517 	switch (dma->fifo_status) {
1518 	case FIFO_START:
1519 		vortex_fifo_setwtvalid(vortex, wtdma,
1520 				       dma->fifo_enabled ? 1 : 0);
1521 		break;
1522 	case FIFO_STOP:
1523 		this_8 = 1;
1524 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1525 			dma->dma_ctrl);
1526 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1527 				      this_4, this_8,
1528 				      dma->fifo_enabled ? 1 : 0, 0);
1529 		break;
1530 	case FIFO_PAUSE:
1531 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1532 				      this_4, this_8,
1533 				      dma->fifo_enabled ? 1 : 0, 0);
1534 		break;
1535 	}
1536 	dma->fifo_status = FIFO_START;
1537 }
1538 
1539 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1540 {
1541 	stream_t *dma = &vortex->dma_wt[wtdma];
1542 
1543 	int this_8 = 0, this_4 = 0;
1544 	switch (dma->fifo_status) {
1545 	case FIFO_STOP:
1546 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1547 			dma->dma_ctrl);
1548 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1549 				      this_4, this_8,
1550 				      dma->fifo_enabled ? 1 : 0, 0);
1551 		break;
1552 	case FIFO_PAUSE:
1553 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1554 				      this_4, this_8,
1555 				      dma->fifo_enabled ? 1 : 0, 0);
1556 		break;
1557 	}
1558 	dma->fifo_status = FIFO_START;
1559 }
1560 
1561 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1562 {
1563 	stream_t *dma = &vortex->dma_wt[wtdma];
1564 
1565 	int this_8 = 0, this_4 = 0;
1566 	switch (dma->fifo_status) {
1567 	case FIFO_START:
1568 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1569 				      this_4, this_8, 0, 0);
1570 		break;
1571 	case FIFO_STOP:
1572 		hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1573 			dma->dma_ctrl);
1574 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1575 				      this_4, this_8, 0, 0);
1576 		break;
1577 	}
1578 	dma->fifo_status = FIFO_PAUSE;
1579 }
1580 
1581 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1582 {
1583 	stream_t *dma = &vortex->dma_wt[wtdma];
1584 
1585 	int this_4 = 0, this_8 = 0;
1586 	if (dma->fifo_status == FIFO_START)
1587 		vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1588 				      this_4, this_8, 0, 0);
1589 	else if (dma->fifo_status == FIFO_STOP)
1590 		return;
1591 	dma->fifo_status = FIFO_STOP;
1592 	dma->fifo_enabled = 0;
1593 }
1594 
1595 #endif
1596 /* ADB Routes */
1597 
1598 typedef int ADBRamLink;
1599 static void vortex_adb_init(vortex_t * vortex)
1600 {
1601 	int i;
1602 	/* it looks like we are writing more than we need to...
1603 	 * if we write what we are supposed to it breaks things... */
1604 	hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1605 	for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1606 		hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1607 			hwread(vortex->mmio,
1608 			       VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1609 	for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1610 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1611 			hwread(vortex->mmio,
1612 			       VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1613 	}
1614 }
1615 
1616 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1617 {
1618 	hwwrite(vortex->mmio, VORTEX_ADB_SR,
1619 		hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1620 }
1621 
1622 static void vortex_adb_dis_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
1629 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1630 		     ADBRamLink * route, int rnum)
1631 {
1632 	int temp, prev, lifeboat = 0;
1633 
1634 	if ((rnum <= 0) || (route == NULL))
1635 		return;
1636 	/* Write last routes. */
1637 	rnum--;
1638 	hwwrite(vortex->mmio,
1639 		VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1640 		ROUTE_MASK);
1641 	while (rnum > 0) {
1642 		hwwrite(vortex->mmio,
1643 			VORTEX_ADB_RTBASE +
1644 			((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1645 		rnum--;
1646 	}
1647 	/* Write first route. */
1648 	temp =
1649 	    hwread(vortex->mmio,
1650 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1651 	if (temp == ADB_MASK) {
1652 		/* First entry on this channel. */
1653 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1654 			route[0]);
1655 		vortex_adb_en_sr(vortex, channel);
1656 		return;
1657 	}
1658 	/* Not first entry on this channel. Need to link. */
1659 	do {
1660 		prev = temp;
1661 		temp =
1662 		    hwread(vortex->mmio,
1663 			   VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1664 		if ((lifeboat++) > ADB_MASK) {
1665 			printk(KERN_ERR
1666 			       "vortex_adb_addroutes: unending route! 0x%x\n",
1667 			       *route);
1668 			return;
1669 		}
1670 	}
1671 	while (temp != ADB_MASK);
1672 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1673 }
1674 
1675 static void
1676 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1677 		     ADBRamLink route0, ADBRamLink route1)
1678 {
1679 	int temp, lifeboat = 0, prev;
1680 
1681 	/* Find route. */
1682 	temp =
1683 	    hwread(vortex->mmio,
1684 		   VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1685 	if (temp == (route0 & ADB_MASK)) {
1686 		temp =
1687 		    hwread(vortex->mmio,
1688 			   VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1689 		if ((temp & ADB_MASK) == ADB_MASK)
1690 			vortex_adb_dis_sr(vortex, channel);
1691 		hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1692 			temp);
1693 		return;
1694 	}
1695 	do {
1696 		prev = temp;
1697 		temp =
1698 		    hwread(vortex->mmio,
1699 			   VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1700 		if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1701 			printk(KERN_ERR
1702 			       "vortex_adb_delroutes: route not found! 0x%x\n",
1703 			       route0);
1704 			return;
1705 		}
1706 	}
1707 	while (temp != (route0 & ADB_MASK));
1708 	temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1709 	if ((temp & ADB_MASK) == route1)
1710 		temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1711 	/* Make bridge over deleted route. */
1712 	hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1713 }
1714 
1715 static void
1716 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1717 	     unsigned char source, unsigned char dest)
1718 {
1719 	ADBRamLink route;
1720 
1721 	route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1722 	if (en) {
1723 		vortex_adb_addroutes(vortex, channel, &route, 1);
1724 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1725 		    && (source >= OFFSET_SRCOUT))
1726 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1727 					  channel);
1728 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1729 			 && (source >= OFFSET_MIXOUT))
1730 			vortex_mixer_addWTD(vortex,
1731 					    (source - OFFSET_MIXOUT), channel);
1732 	} else {
1733 		vortex_adb_delroutes(vortex, channel, route, route);
1734 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1735 		    && (source >= OFFSET_SRCOUT))
1736 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1737 					  channel);
1738 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1739 			 && (source >= OFFSET_MIXOUT))
1740 			vortex_mixer_delWTD(vortex,
1741 					    (source - OFFSET_MIXOUT), channel);
1742 	}
1743 }
1744 
1745 #if 0
1746 static void
1747 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1748 	      unsigned char source, unsigned char dest0, unsigned char dest1)
1749 {
1750 	ADBRamLink route[2];
1751 
1752 	route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1753 	route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1754 
1755 	if (en) {
1756 		vortex_adb_addroutes(vortex, channel, route, 2);
1757 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1758 		    && (source >= (OFFSET_SRCOUT)))
1759 			vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1760 					  channel);
1761 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1762 			 && (source >= (OFFSET_MIXOUT)))
1763 			vortex_mixer_addWTD(vortex,
1764 					    (source - OFFSET_MIXOUT), channel);
1765 	} else {
1766 		vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1767 		if ((source < (OFFSET_SRCOUT + NR_SRC))
1768 		    && (source >= (OFFSET_SRCOUT)))
1769 			vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1770 					  channel);
1771 		else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1772 			 && (source >= (OFFSET_MIXOUT)))
1773 			vortex_mixer_delWTD(vortex,
1774 					    (source - OFFSET_MIXOUT), channel);
1775 	}
1776 }
1777 
1778 #endif
1779 /* Route two sources to same target. Sources must be of same class !!! */
1780 static void
1781 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1782 		unsigned char source0, unsigned char source1,
1783 		unsigned char dest)
1784 {
1785 	ADBRamLink route[2];
1786 
1787 	route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1788 	route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1789 
1790 	if (dest < 0x10)
1791 		route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);	/* fifo A */
1792 
1793 	if (en) {
1794 		vortex_adb_addroutes(vortex, ch, route, 2);
1795 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1796 		    && (source0 >= OFFSET_SRCOUT)) {
1797 			vortex_src_addWTD(vortex,
1798 					  (source0 - OFFSET_SRCOUT), ch);
1799 			vortex_src_addWTD(vortex,
1800 					  (source1 - OFFSET_SRCOUT), ch);
1801 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1802 			   && (source0 >= OFFSET_MIXOUT)) {
1803 			vortex_mixer_addWTD(vortex,
1804 					    (source0 - OFFSET_MIXOUT), ch);
1805 			vortex_mixer_addWTD(vortex,
1806 					    (source1 - OFFSET_MIXOUT), ch);
1807 		}
1808 	} else {
1809 		vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1810 		if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1811 		    && (source0 >= OFFSET_SRCOUT)) {
1812 			vortex_src_delWTD(vortex,
1813 					  (source0 - OFFSET_SRCOUT), ch);
1814 			vortex_src_delWTD(vortex,
1815 					  (source1 - OFFSET_SRCOUT), ch);
1816 		} else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1817 			   && (source0 >= OFFSET_MIXOUT)) {
1818 			vortex_mixer_delWTD(vortex,
1819 					    (source0 - OFFSET_MIXOUT), ch);
1820 			vortex_mixer_delWTD(vortex,
1821 					    (source1 - OFFSET_MIXOUT), ch);
1822 		}
1823 	}
1824 }
1825 
1826 /* Connection stuff */
1827 
1828 // Connect adbdma to src('s).
1829 static void
1830 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1831 			     unsigned char adbdma, unsigned char src)
1832 {
1833 	vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1834 }
1835 
1836 // Connect SRC to mixin.
1837 static void
1838 vortex_connection_src_mixin(vortex_t * vortex, int en,
1839 			    unsigned char channel, unsigned char src,
1840 			    unsigned char mixin)
1841 {
1842 	vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1843 }
1844 
1845 // Connect mixin with mix output.
1846 static void
1847 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1848 			    unsigned char mix, int a)
1849 {
1850 	if (en) {
1851 		vortex_mix_enableinput(vortex, mix, mixin);
1852 		vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);	// added to original code.
1853 	} else
1854 		vortex_mix_disableinput(vortex, mix, mixin, a);
1855 }
1856 
1857 // Connect absolut address to mixin.
1858 static void
1859 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1860 			    unsigned char channel, unsigned char source,
1861 			    unsigned char mixin)
1862 {
1863 	vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1864 }
1865 
1866 static void
1867 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1868 			     unsigned char src, unsigned char adbdma)
1869 {
1870 	vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1871 }
1872 
1873 static void
1874 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1875 				 unsigned char ch, unsigned char src0,
1876 				 unsigned char src1, unsigned char adbdma)
1877 {
1878 
1879 	vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1880 			ADB_DMA(adbdma));
1881 }
1882 
1883 // mix to absolut address.
1884 static void
1885 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1886 			  unsigned char mix, unsigned char dest)
1887 {
1888 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1889 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1890 }
1891 
1892 // mixer to src.
1893 static void
1894 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1895 			  unsigned char mix, unsigned char src)
1896 {
1897 	vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1898 	vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);	// added to original code.
1899 }
1900 
1901 #if 0
1902 static void
1903 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1904 				 unsigned char channel,
1905 				 unsigned char adbdma, unsigned char src0,
1906 				 unsigned char src1)
1907 {
1908 	vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1909 		      ADB_SRCIN(src0), ADB_SRCIN(src1));
1910 }
1911 
1912 // Connect two mix to AdbDma.
1913 static void
1914 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1915 				 unsigned char ch, unsigned char mix0,
1916 				 unsigned char mix1, unsigned char adbdma)
1917 {
1918 
1919 	ADBRamLink routes[2];
1920 	routes[0] =
1921 	    (((mix0 +
1922 	       OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1923 	routes[1] =
1924 	    (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1925 								   0x20) &
1926 								  ADB_MASK);
1927 	if (en) {
1928 		vortex_adb_addroutes(vortex, ch, routes, 0x2);
1929 		vortex_mixer_addWTD(vortex, mix0, ch);
1930 		vortex_mixer_addWTD(vortex, mix1, ch);
1931 	} else {
1932 		vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1933 		vortex_mixer_delWTD(vortex, mix0, ch);
1934 		vortex_mixer_delWTD(vortex, mix1, ch);
1935 	}
1936 }
1937 #endif
1938 
1939 /* CODEC connect. */
1940 
1941 static void
1942 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1943 {
1944 #ifdef CHIP_AU8820
1945 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1946 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1947 #else
1948 #if 1
1949 	// Connect front channels through EQ.
1950 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1951 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1952 	/* Lower volume, since EQ has some gain. */
1953 	vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1954 	vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1955 	vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1956 	vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1957 
1958 	/* Check if reg 0x28 has SDAC bit set. */
1959 	if (VORTEX_IS_QUAD(vortex)) {
1960 		/* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1961 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1962 					  ADB_CODECOUT(0 + 4));
1963 		vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1964 					  ADB_CODECOUT(1 + 4));
1965 		/* printk(KERN_DEBUG "SDAC detected "); */
1966 	}
1967 #else
1968 	// Use plain direct output to codec.
1969 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1970 	vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1971 #endif
1972 #endif
1973 }
1974 
1975 static void
1976 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1977 			unsigned char mixin1)
1978 {
1979 	/*
1980 	   Enable: 0x1, 0x1
1981 	   Channel: 0x11, 0x11
1982 	   ADB Source address: 0x48, 0x49
1983 	   Destination Asp4Topology_0x9c,0x98
1984 	 */
1985 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1986 	vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1987 }
1988 
1989 // Higher level ADB audio path (de)allocator.
1990 
1991 /* Resource manager */
1992 static int resnum[VORTEX_RESOURCE_LAST] =
1993     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
1994 /*
1995  Checkout/Checkin resource of given type.
1996  resmap: resource map to be used. If NULL means that we want to allocate
1997  a DMA resource (root of all other resources of a dma channel).
1998  out: Mean checkout if != 0. Else mean Checkin resource.
1999  restype: Indicates type of resource to be checked in or out.
2000 */
2001 static char
2002 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2003 {
2004 	int i, qty = resnum[restype], resinuse = 0;
2005 
2006 	if (out) {
2007 		/* Gather used resources by all streams. */
2008 		for (i = 0; i < NR_ADB; i++) {
2009 			resinuse |= vortex->dma_adb[i].resources[restype];
2010 		}
2011 		resinuse |= vortex->fixed_res[restype];
2012 		/* Find and take free resource. */
2013 		for (i = 0; i < qty; i++) {
2014 			if ((resinuse & (1 << i)) == 0) {
2015 				if (resmap != NULL)
2016 					resmap[restype] |= (1 << i);
2017 				else
2018 					vortex->dma_adb[i].resources[restype] |= (1 << i);
2019 				/*
2020 				printk(KERN_DEBUG
2021 				       "vortex: ResManager: type %d out %d\n",
2022 				       restype, i);
2023 				*/
2024 				return i;
2025 			}
2026 		}
2027 	} else {
2028 		if (resmap == NULL)
2029 			return -EINVAL;
2030 		/* Checkin first resource of type restype. */
2031 		for (i = 0; i < qty; i++) {
2032 			if (resmap[restype] & (1 << i)) {
2033 				resmap[restype] &= ~(1 << i);
2034 				/*
2035 				printk(KERN_DEBUG
2036 				       "vortex: ResManager: type %d in %d\n",
2037 				       restype, i);
2038 				*/
2039 				return i;
2040 			}
2041 		}
2042 	}
2043 	printk(KERN_ERR "vortex: FATAL: ResManager: resource type %d exhausted.\n", restype);
2044 	return -ENOMEM;
2045 }
2046 
2047 /* Default Connections  */
2048 static int
2049 vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type);
2050 
2051 static void vortex_connect_default(vortex_t * vortex, int en)
2052 {
2053 	// Connect AC97 codec.
2054 	vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2055 				  VORTEX_RESOURCE_MIXOUT);
2056 	vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2057 				  VORTEX_RESOURCE_MIXOUT);
2058 	if (VORTEX_IS_QUAD(vortex)) {
2059 		vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2060 					  VORTEX_RESOURCE_MIXOUT);
2061 		vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2062 					  VORTEX_RESOURCE_MIXOUT);
2063 	}
2064 	vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2065 
2066 	vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2067 				  VORTEX_RESOURCE_MIXIN);
2068 	vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2069 				  VORTEX_RESOURCE_MIXIN);
2070 	vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2071 
2072 	// Connect SPDIF
2073 #ifndef CHIP_AU8820
2074 	vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2075 				  VORTEX_RESOURCE_MIXOUT);
2076 	vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2077 				  VORTEX_RESOURCE_MIXOUT);
2078 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2079 				  ADB_SPDIFOUT(0));
2080 	vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2081 				  ADB_SPDIFOUT(1));
2082 #endif
2083 	// Connect WT
2084 #ifndef CHIP_AU8810
2085 	vortex_wt_connect(vortex, en);
2086 #endif
2087 	// A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2088 #ifndef CHIP_AU8820
2089 	vortex_Vort3D_connect(vortex, en);
2090 #endif
2091 	// Connect I2S
2092 
2093 	// Connect DSP interface for SQ3500 turbo (not here i think...)
2094 
2095 	// Connect AC98 modem codec
2096 
2097 }
2098 
2099 /*
2100   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2101   are deallocated.
2102   dma: DMA engine routes to be deallocated when dma >= 0.
2103   nr_ch: Number of channels to be de/allocated.
2104   dir: direction of stream. Uses same values as substream->stream.
2105   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2106   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2107 */
2108 static int
2109 vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type)
2110 {
2111 	stream_t *stream;
2112 	int i, en;
2113 
2114 	if ((nr_ch == 3)
2115 	    || ((dir == SNDRV_PCM_STREAM_CAPTURE) && (nr_ch > 2)))
2116 		return -EBUSY;
2117 
2118 	if (dma >= 0) {
2119 		en = 0;
2120 		vortex_adb_checkinout(vortex,
2121 				      vortex->dma_adb[dma].resources, en,
2122 				      VORTEX_RESOURCE_DMA);
2123 	} else {
2124 		en = 1;
2125 		if ((dma =
2126 		     vortex_adb_checkinout(vortex, NULL, en,
2127 					   VORTEX_RESOURCE_DMA)) < 0)
2128 			return -EBUSY;
2129 	}
2130 
2131 	stream = &vortex->dma_adb[dma];
2132 	stream->dma = dma;
2133 	stream->dir = dir;
2134 	stream->type = type;
2135 
2136 	/* PLAYBACK ROUTES. */
2137 	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2138 		int src[4], mix[4], ch_top;
2139 #ifndef CHIP_AU8820
2140 		int a3d = 0;
2141 #endif
2142 		/* Get SRC and MIXER hardware resources. */
2143 		if (stream->type != VORTEX_PCM_SPDIF) {
2144 			for (i = 0; i < nr_ch; i++) {
2145 				if ((src[i] = vortex_adb_checkinout(vortex,
2146 							   stream->resources, en,
2147 							   VORTEX_RESOURCE_SRC)) < 0) {
2148 					memset(stream->resources, 0,
2149 					       sizeof(unsigned char) *
2150 					       VORTEX_RESOURCE_LAST);
2151 					return -EBUSY;
2152 				}
2153 				if (stream->type != VORTEX_PCM_A3D) {
2154 					if ((mix[i] = vortex_adb_checkinout(vortex,
2155 								   stream->resources,
2156 								   en,
2157 								   VORTEX_RESOURCE_MIXIN)) < 0) {
2158 						memset(stream->resources,
2159 						       0,
2160 						       sizeof(unsigned char) * VORTEX_RESOURCE_LAST);
2161 						return -EBUSY;
2162 					}
2163 				}
2164 			}
2165 		}
2166 #ifndef CHIP_AU8820
2167 		if (stream->type == VORTEX_PCM_A3D) {
2168 			if ((a3d =
2169 			     vortex_adb_checkinout(vortex,
2170 						   stream->resources, en,
2171 						   VORTEX_RESOURCE_A3D)) < 0) {
2172 				memset(stream->resources, 0,
2173 				       sizeof(unsigned char) *
2174 				       VORTEX_RESOURCE_LAST);
2175 				printk(KERN_ERR "vortex: out of A3D sources. Sorry\n");
2176 				return -EBUSY;
2177 			}
2178 			/* (De)Initialize A3D hardware source. */
2179 			vortex_Vort3D_InitializeSource(&(vortex->a3d[a3d]), en);
2180 		}
2181 		/* Make SPDIF out exclusive to "spdif" device when in use. */
2182 		if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2183 			vortex_route(vortex, 0, 0x14,
2184 				     ADB_MIXOUT(vortex->mixspdif[0]),
2185 				     ADB_SPDIFOUT(0));
2186 			vortex_route(vortex, 0, 0x14,
2187 				     ADB_MIXOUT(vortex->mixspdif[1]),
2188 				     ADB_SPDIFOUT(1));
2189 		}
2190 #endif
2191 		/* Make playback routes. */
2192 		for (i = 0; i < nr_ch; i++) {
2193 			if (stream->type == VORTEX_PCM_ADB) {
2194 				vortex_connection_adbdma_src(vortex, en,
2195 							     src[nr_ch - 1],
2196 							     dma,
2197 							     src[i]);
2198 				vortex_connection_src_mixin(vortex, en,
2199 							    0x11, src[i],
2200 							    mix[i]);
2201 				vortex_connection_mixin_mix(vortex, en,
2202 							    mix[i],
2203 							    MIX_PLAYB(i), 0);
2204 #ifndef CHIP_AU8820
2205 				vortex_connection_mixin_mix(vortex, en,
2206 							    mix[i],
2207 							    MIX_SPDIF(i % 2), 0);
2208 				vortex_mix_setinputvolumebyte(vortex,
2209 							      MIX_SPDIF(i % 2),
2210 							      mix[i],
2211 							      MIX_DEFIGAIN);
2212 #endif
2213 			}
2214 #ifndef CHIP_AU8820
2215 			if (stream->type == VORTEX_PCM_A3D) {
2216 				vortex_connection_adbdma_src(vortex, en,
2217 							     src[nr_ch - 1],
2218 								 dma,
2219 							     src[i]);
2220 				vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2221 				/* XTalk test. */
2222 				//vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2223 				//vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2224 			}
2225 			if (stream->type == VORTEX_PCM_SPDIF)
2226 				vortex_route(vortex, en, 0x14,
2227 					     ADB_DMA(stream->dma),
2228 					     ADB_SPDIFOUT(i));
2229 #endif
2230 		}
2231 		if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2232 			ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2233 			for (i = nr_ch; i < ch_top; i++) {
2234 				vortex_connection_mixin_mix(vortex, en,
2235 							    mix[i % nr_ch],
2236 							    MIX_PLAYB(i), 0);
2237 #ifndef CHIP_AU8820
2238 				vortex_connection_mixin_mix(vortex, en,
2239 							    mix[i % nr_ch],
2240 							    MIX_SPDIF(i % 2),
2241 								0);
2242 				vortex_mix_setinputvolumebyte(vortex,
2243 							      MIX_SPDIF(i % 2),
2244 							      mix[i % nr_ch],
2245 							      MIX_DEFIGAIN);
2246 #endif
2247 			}
2248 		}
2249 #ifndef CHIP_AU8820
2250 		else {
2251 			if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2252 				vortex_route(vortex, en, 0x14,
2253 					     ADB_DMA(stream->dma),
2254 					     ADB_SPDIFOUT(1));
2255 		}
2256 		/* Reconnect SPDIF out when "spdif" device is down. */
2257 		if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2258 			vortex_route(vortex, 1, 0x14,
2259 				     ADB_MIXOUT(vortex->mixspdif[0]),
2260 				     ADB_SPDIFOUT(0));
2261 			vortex_route(vortex, 1, 0x14,
2262 				     ADB_MIXOUT(vortex->mixspdif[1]),
2263 				     ADB_SPDIFOUT(1));
2264 		}
2265 #endif
2266 	/* CAPTURE ROUTES. */
2267 	} else {
2268 		int src[2], mix[2];
2269 
2270 		/* Get SRC and MIXER hardware resources. */
2271 		for (i = 0; i < nr_ch; i++) {
2272 			if ((mix[i] =
2273 			     vortex_adb_checkinout(vortex,
2274 						   stream->resources, en,
2275 						   VORTEX_RESOURCE_MIXOUT))
2276 			    < 0) {
2277 				memset(stream->resources, 0,
2278 				       sizeof(unsigned char) *
2279 				       VORTEX_RESOURCE_LAST);
2280 				return -EBUSY;
2281 			}
2282 			if ((src[i] =
2283 			     vortex_adb_checkinout(vortex,
2284 						   stream->resources, en,
2285 						   VORTEX_RESOURCE_SRC)) < 0) {
2286 				memset(stream->resources, 0,
2287 				       sizeof(unsigned char) *
2288 				       VORTEX_RESOURCE_LAST);
2289 				return -EBUSY;
2290 			}
2291 		}
2292 
2293 		/* Make capture routes. */
2294 		vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2295 		vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2296 		if (nr_ch == 1) {
2297 			vortex_connection_mixin_mix(vortex, en,
2298 						    MIX_CAPT(1), mix[0], 0);
2299 			vortex_connection_src_adbdma(vortex, en,
2300 						     src[0],
2301 						     src[0], dma);
2302 		} else {
2303 			vortex_connection_mixin_mix(vortex, en,
2304 						    MIX_CAPT(1), mix[1], 0);
2305 			vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2306 						  src[1]);
2307 			vortex_connection_src_src_adbdma(vortex, en,
2308 							 src[1], src[0],
2309 							 src[1], dma);
2310 		}
2311 	}
2312 	vortex->dma_adb[dma].nr_ch = nr_ch;
2313 
2314 #if 0
2315 	/* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2316 	if (nr_ch < 4) {
2317 		/* Copy stereo to rear channel (surround) */
2318 		snd_ac97_write_cache(vortex->codec,
2319 				     AC97_SIGMATEL_DAC2INVERT,
2320 				     snd_ac97_read(vortex->codec,
2321 						   AC97_SIGMATEL_DAC2INVERT)
2322 				     | 4);
2323 	} else {
2324 		/* Allow separate front and rear channels. */
2325 		snd_ac97_write_cache(vortex->codec,
2326 				     AC97_SIGMATEL_DAC2INVERT,
2327 				     snd_ac97_read(vortex->codec,
2328 						   AC97_SIGMATEL_DAC2INVERT)
2329 				     & ~((u32)
2330 					 4));
2331 	}
2332 #endif
2333 	return dma;
2334 }
2335 
2336 /*
2337  Set the SampleRate of the SRC's attached to the given DMA engine.
2338  */
2339 static void
2340 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2341 {
2342 	stream_t *stream = &(vortex->dma_adb[adbdma]);
2343 	int i, cvrt;
2344 
2345 	/* dir=1:play ; dir=0:rec */
2346 	if (dir)
2347 		cvrt = SRC_RATIO(rate, 48000);
2348 	else
2349 		cvrt = SRC_RATIO(48000, rate);
2350 
2351 	/* Setup SRC's */
2352 	for (i = 0; i < NR_SRC; i++) {
2353 		if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2354 			vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2355 	}
2356 }
2357 
2358 // Timer and ISR functions.
2359 
2360 static void vortex_settimer(vortex_t * vortex, int period)
2361 {
2362 	//set the timer period to <period> 48000ths of a second.
2363 	hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2364 }
2365 
2366 #if 0
2367 static void vortex_enable_timer_int(vortex_t * card)
2368 {
2369 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2370 		hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2371 }
2372 
2373 static void vortex_disable_timer_int(vortex_t * card)
2374 {
2375 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2376 		hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2377 }
2378 
2379 #endif
2380 static void vortex_enable_int(vortex_t * card)
2381 {
2382 	// CAsp4ISR__EnableVortexInt_void_
2383 	hwwrite(card->mmio, VORTEX_CTRL,
2384 		hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2385 	hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2386 		(hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2387 }
2388 
2389 static void vortex_disable_int(vortex_t * card)
2390 {
2391 	hwwrite(card->mmio, VORTEX_CTRL,
2392 		hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2393 }
2394 
2395 static irqreturn_t vortex_interrupt(int irq, void *dev_id)
2396 {
2397 	vortex_t *vortex = dev_id;
2398 	int i, handled;
2399 	u32 source;
2400 
2401 	//check if the interrupt is ours.
2402 	if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2403 		return IRQ_NONE;
2404 
2405 	// This is the Interrupt Enable flag we set before (consistency check).
2406 	if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2407 		return IRQ_NONE;
2408 
2409 	source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2410 	// Reset IRQ flags.
2411 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2412 	hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2413 	// Is at least one IRQ flag set?
2414 	if (source == 0) {
2415 		printk(KERN_ERR "vortex: missing irq source\n");
2416 		return IRQ_NONE;
2417 	}
2418 
2419 	handled = 0;
2420 	// Attend every interrupt source.
2421 	if (unlikely(source & IRQ_ERR_MASK)) {
2422 		if (source & IRQ_FATAL) {
2423 			printk(KERN_ERR "vortex: IRQ fatal error\n");
2424 		}
2425 		if (source & IRQ_PARITY) {
2426 			printk(KERN_ERR "vortex: IRQ parity error\n");
2427 		}
2428 		if (source & IRQ_REG) {
2429 			printk(KERN_ERR "vortex: IRQ reg error\n");
2430 		}
2431 		if (source & IRQ_FIFO) {
2432 			printk(KERN_ERR "vortex: IRQ fifo error\n");
2433 		}
2434 		if (source & IRQ_DMA) {
2435 			printk(KERN_ERR "vortex: IRQ dma error\n");
2436 		}
2437 		handled = 1;
2438 	}
2439 	if (source & IRQ_PCMOUT) {
2440 		/* ALSA period acknowledge. */
2441 		spin_lock(&vortex->lock);
2442 		for (i = 0; i < NR_ADB; i++) {
2443 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2444 				if (vortex_adbdma_bufshift(vortex, i)) ;
2445 				spin_unlock(&vortex->lock);
2446 				snd_pcm_period_elapsed(vortex->dma_adb[i].
2447 						       substream);
2448 				spin_lock(&vortex->lock);
2449 			}
2450 		}
2451 #ifndef CHIP_AU8810
2452 		for (i = 0; i < NR_WT; i++) {
2453 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2454 				if (vortex_wtdma_bufshift(vortex, i)) ;
2455 				spin_unlock(&vortex->lock);
2456 				snd_pcm_period_elapsed(vortex->dma_wt[i].
2457 						       substream);
2458 				spin_lock(&vortex->lock);
2459 			}
2460 		}
2461 #endif
2462 		spin_unlock(&vortex->lock);
2463 		handled = 1;
2464 	}
2465 	//Acknowledge the Timer interrupt
2466 	if (source & IRQ_TIMER) {
2467 		hwread(vortex->mmio, VORTEX_IRQ_STAT);
2468 		handled = 1;
2469 	}
2470 	if (source & IRQ_MIDI) {
2471 		snd_mpu401_uart_interrupt(vortex->irq,
2472 					  vortex->rmidi->private_data);
2473 		handled = 1;
2474 	}
2475 
2476 	if (!handled) {
2477 		printk(KERN_ERR "vortex: unknown irq source %x\n", source);
2478 	}
2479 	return IRQ_RETVAL(handled);
2480 }
2481 
2482 /* Codec */
2483 
2484 #define POLL_COUNT 1000
2485 static void vortex_codec_init(vortex_t * vortex)
2486 {
2487 	int i;
2488 
2489 	for (i = 0; i < 32; i++) {
2490 		/* the windows driver writes -i, so we write -i */
2491 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2492 		msleep(2);
2493 	}
2494 	if (0) {
2495 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2496 		msleep(1);
2497 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2498 		msleep(1);
2499 	} else {
2500 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2501 		msleep(2);
2502 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2503 		msleep(2);
2504 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2505 		msleep(2);
2506 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2507 		msleep(2);
2508 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2509 		msleep(2);
2510 		hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2511 	}
2512 	for (i = 0; i < 32; i++) {
2513 		hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2514 		msleep(5);
2515 	}
2516 	hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2517 	msleep(1);
2518 	/* Enable codec channels 0 and 1. */
2519 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2520 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2521 }
2522 
2523 static void
2524 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2525 {
2526 
2527 	vortex_t *card = (vortex_t *) codec->private_data;
2528 	unsigned int lifeboat = 0;
2529 
2530 	/* wait for transactions to clear */
2531 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2532 		udelay(100);
2533 		if (lifeboat++ > POLL_COUNT) {
2534 			printk(KERN_ERR "vortex: ac97 codec stuck busy\n");
2535 			return;
2536 		}
2537 	}
2538 	/* write register */
2539 	hwwrite(card->mmio, VORTEX_CODEC_IO,
2540 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2541 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2542 		VORTEX_CODEC_WRITE |
2543 		(codec->num << VORTEX_CODEC_ID_SHIFT) );
2544 
2545 	/* Flush Caches. */
2546 	hwread(card->mmio, VORTEX_CODEC_IO);
2547 }
2548 
2549 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2550 {
2551 
2552 	vortex_t *card = (vortex_t *) codec->private_data;
2553 	u32 read_addr, data;
2554 	unsigned lifeboat = 0;
2555 
2556 	/* wait for transactions to clear */
2557 	while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2558 		udelay(100);
2559 		if (lifeboat++ > POLL_COUNT) {
2560 			printk(KERN_ERR "vortex: ac97 codec stuck busy\n");
2561 			return 0xffff;
2562 		}
2563 	}
2564 	/* set up read address */
2565 	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2566 		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
2567 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2568 
2569 	/* wait for address */
2570 	do {
2571 		udelay(100);
2572 		data = hwread(card->mmio, VORTEX_CODEC_IO);
2573 		if (lifeboat++ > POLL_COUNT) {
2574 			printk(KERN_ERR "vortex: ac97 address never arrived\n");
2575 			return 0xffff;
2576 		}
2577 	} while ((data & VORTEX_CODEC_ADDMASK) !=
2578 		 (addr << VORTEX_CODEC_ADDSHIFT));
2579 
2580 	/* return data. */
2581 	return (u16) (data & VORTEX_CODEC_DATMASK);
2582 }
2583 
2584 /* SPDIF support  */
2585 
2586 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2587 {
2588 	int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2589 
2590 	/* CAsp4Spdif::InitializeSpdifHardware(void) */
2591 	hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2592 		hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2593 	//for (i=0x291D4; i<0x29200; i+=4)
2594 	for (i = 0; i < 11; i++)
2595 		hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2596 	//hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2597 	hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2598 		hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2599 
2600 	/* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2601 	if (this_04 && this_08) {
2602 		int edi;
2603 
2604 		i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2605 		if (i > 0x800) {
2606 			if (i < 0x1ffff)
2607 				edi = (i >> 1);
2608 			else
2609 				edi = 0x1ffff;
2610 		} else {
2611 			i = edi = 0x800;
2612 		}
2613 		/* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2614 		vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2615 					this_0c, 1, 0, edi, 1);
2616 		vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2617 					this_0c, 1, 0, edi, 1);
2618 	}
2619 
2620 	i = spdif_sr;
2621 	spdif_sr |= 0x8c;
2622 	switch (i) {
2623 	case 32000:
2624 		this_38 &= 0xFFFFFFFE;
2625 		this_38 &= 0xFFFFFFFD;
2626 		this_38 &= 0xF3FFFFFF;
2627 		this_38 |= 0x03000000;	/* set 32khz samplerate */
2628 		this_38 &= 0xFFFFFF3F;
2629 		spdif_sr &= 0xFFFFFFFD;
2630 		spdif_sr |= 1;
2631 		break;
2632 	case 44100:
2633 		this_38 &= 0xFFFFFFFE;
2634 		this_38 &= 0xFFFFFFFD;
2635 		this_38 &= 0xF0FFFFFF;
2636 		this_38 |= 0x03000000;
2637 		this_38 &= 0xFFFFFF3F;
2638 		spdif_sr &= 0xFFFFFFFC;
2639 		break;
2640 	case 48000:
2641 		if (spdif_mode == 1) {
2642 			this_38 &= 0xFFFFFFFE;
2643 			this_38 &= 0xFFFFFFFD;
2644 			this_38 &= 0xF2FFFFFF;
2645 			this_38 |= 0x02000000;	/* set 48khz samplerate */
2646 			this_38 &= 0xFFFFFF3F;
2647 		} else {
2648 			/* J. Gordon Wolfe: I think this stuff is for AC3 */
2649 			this_38 |= 0x00000003;
2650 			this_38 &= 0xFFFFFFBF;
2651 			this_38 |= 0x80;
2652 		}
2653 		spdif_sr |= 2;
2654 		spdif_sr &= 0xFFFFFFFE;
2655 		break;
2656 
2657 	}
2658 	/* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2659 	   registers. seems to be for the standard IEC/SPDIF initialization
2660 	   stuff */
2661 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2662 	hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2663 	hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2664 }
2665 
2666 /* Initialization */
2667 
2668 static int __devinit vortex_core_init(vortex_t * vortex)
2669 {
2670 
2671 	printk(KERN_INFO "Vortex: init.... ");
2672 	/* Hardware Init. */
2673 	hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2674 	msleep(5);
2675 	hwwrite(vortex->mmio, VORTEX_CTRL,
2676 		hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2677 	msleep(5);
2678 	/* Reset IRQ flags */
2679 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2680 	hwread(vortex->mmio, VORTEX_IRQ_STAT);
2681 
2682 	vortex_codec_init(vortex);
2683 
2684 #ifdef CHIP_AU8830
2685 	hwwrite(vortex->mmio, VORTEX_CTRL,
2686 		hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2687 #endif
2688 
2689 	/* Init audio engine. */
2690 	vortex_adbdma_init(vortex);
2691 	hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0);	//, 0xc83c7e58, 0xc5f93e58
2692 	vortex_adb_init(vortex);
2693 	/* Init processing blocks. */
2694 	vortex_fifo_init(vortex);
2695 	vortex_mixer_init(vortex);
2696 	vortex_srcblock_init(vortex);
2697 #ifndef CHIP_AU8820
2698 	vortex_eq_init(vortex);
2699 	vortex_spdif_init(vortex, 48000, 1);
2700 	vortex_Vort3D_enable(vortex);
2701 #endif
2702 #ifndef CHIP_AU8810
2703 	vortex_wt_init(vortex);
2704 #endif
2705 	// Moved to au88x0.c
2706 	//vortex_connect_default(vortex, 1);
2707 
2708 	vortex_settimer(vortex, 0x90);
2709 	// Enable Interrupts.
2710 	// vortex_enable_int() must be first !!
2711 	//  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2712 	// vortex_enable_int(vortex);
2713 	//vortex_enable_timer_int(vortex);
2714 	//vortex_disable_timer_int(vortex);
2715 
2716 	printk(KERN_INFO "done.\n");
2717 	spin_lock_init(&vortex->lock);
2718 
2719 	return 0;
2720 }
2721 
2722 static int vortex_core_shutdown(vortex_t * vortex)
2723 {
2724 
2725 	printk(KERN_INFO "Vortex: shutdown...");
2726 #ifndef CHIP_AU8820
2727 	vortex_eq_free(vortex);
2728 	vortex_Vort3D_disable(vortex);
2729 #endif
2730 	//vortex_disable_timer_int(vortex);
2731 	vortex_disable_int(vortex);
2732 	vortex_connect_default(vortex, 0);
2733 	/* Reset all DMA fifos. */
2734 	vortex_fifo_init(vortex);
2735 	/* Erase all audio routes. */
2736 	vortex_adb_init(vortex);
2737 
2738 	/* Disable MPU401 */
2739 	//hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2740 	//hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2741 
2742 	hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2743 	hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2744 	msleep(5);
2745 	hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2746 
2747 	printk(KERN_INFO "done.\n");
2748 	return 0;
2749 }
2750 
2751 /* Alsa support. */
2752 
2753 static int vortex_alsafmt_aspfmt(int alsafmt)
2754 {
2755 	int fmt;
2756 
2757 	switch (alsafmt) {
2758 	case SNDRV_PCM_FORMAT_U8:
2759 		fmt = 0x1;
2760 		break;
2761 	case SNDRV_PCM_FORMAT_MU_LAW:
2762 		fmt = 0x2;
2763 		break;
2764 	case SNDRV_PCM_FORMAT_A_LAW:
2765 		fmt = 0x3;
2766 		break;
2767 	case SNDRV_PCM_FORMAT_SPECIAL:
2768 		fmt = 0x4;	/* guess. */
2769 		break;
2770 	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2771 		fmt = 0x5;	/* guess. */
2772 		break;
2773 	case SNDRV_PCM_FORMAT_S16_LE:
2774 		fmt = 0x8;
2775 		break;
2776 	case SNDRV_PCM_FORMAT_S16_BE:
2777 		fmt = 0x9;	/* check this... */
2778 		break;
2779 	default:
2780 		fmt = 0x8;
2781 		printk(KERN_ERR "vortex: format unsupported %d\n", alsafmt);
2782 		break;
2783 	}
2784 	return fmt;
2785 }
2786 
2787 /* Some not yet useful translations. */
2788 #if 0
2789 typedef enum {
2790 	ASPFMTLINEAR16 = 0,	/* 0x8 */
2791 	ASPFMTLINEAR8,		/* 0x1 */
2792 	ASPFMTULAW,		/* 0x2 */
2793 	ASPFMTALAW,		/* 0x3 */
2794 	ASPFMTSPORT,		/* ? */
2795 	ASPFMTSPDIF,		/* ? */
2796 } ASPENCODING;
2797 
2798 static int
2799 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2800 {
2801 	int a, this_194;
2802 
2803 	if ((bits != 8) || (bits != 16))
2804 		return -1;
2805 
2806 	switch (encod) {
2807 	case 0:
2808 		if (bits == 0x10)
2809 			a = 8;	// 16 bit
2810 		break;
2811 	case 1:
2812 		if (bits == 8)
2813 			a = 1;	// 8 bit
2814 		break;
2815 	case 2:
2816 		a = 2;		// U_LAW
2817 		break;
2818 	case 3:
2819 		a = 3;		// A_LAW
2820 		break;
2821 	}
2822 	switch (nch) {
2823 	case 1:
2824 		this_194 = 0;
2825 		break;
2826 	case 2:
2827 		this_194 = 1;
2828 		break;
2829 	case 4:
2830 		this_194 = 1;
2831 		break;
2832 	case 6:
2833 		this_194 = 1;
2834 		break;
2835 	}
2836 	return (a);
2837 }
2838 
2839 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2840 {
2841 	short int d, this_148;
2842 
2843 	d = ((bits >> 3) * nch);
2844 	this_148 = 0xbb80 / d;
2845 }
2846 #endif
2847