xref: /openbmc/linux/sound/pci/ctxfi/cthw20k2.c (revision 4836ac65)
1 /**
2  * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
3  *
4  * This source file is released under GPL v2 license (no other versions).
5  * See the COPYING file included in the main directory of this source
6  * distribution for the license terms and conditions.
7  *
8  * @File	cthw20k2.c
9  *
10  * @Brief
11  * This file contains the implementation of hardware access methord for 20k2.
12  *
13  * @Author	Liu Chun
14  * @Date 	May 14 2008
15  *
16  */
17 
18 #include "cthw20k2.h"
19 #include "ct20k2reg.h"
20 #include <linux/types.h>
21 #include <linux/slab.h>
22 #include <linux/pci.h>
23 #include <linux/io.h>
24 #include <linux/string.h>
25 #include <linux/kernel.h>
26 #include <linux/interrupt.h>
27 #include <linux/delay.h>
28 
29 #if BITS_PER_LONG == 32
30 #define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bit PTE */
31 #else
32 #define CT_XFI_DMA_MASK		DMA_BIT_MASK(64) /* 64 bit PTE */
33 #endif
34 
35 static u32 hw_read_20kx(struct hw *hw, u32 reg);
36 static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
37 
38 /*
39  * Type definition block.
40  * The layout of control structures can be directly applied on 20k2 chip.
41  */
42 
43 /*
44  * SRC control block definitions.
45  */
46 
47 /* SRC resource control block */
48 #define SRCCTL_STATE	0x00000007
49 #define SRCCTL_BM	0x00000008
50 #define SRCCTL_RSR	0x00000030
51 #define SRCCTL_SF	0x000001C0
52 #define SRCCTL_WR	0x00000200
53 #define SRCCTL_PM	0x00000400
54 #define SRCCTL_ROM	0x00001800
55 #define SRCCTL_VO	0x00002000
56 #define SRCCTL_ST	0x00004000
57 #define SRCCTL_IE	0x00008000
58 #define SRCCTL_ILSZ	0x000F0000
59 #define SRCCTL_BP	0x00100000
60 
61 #define SRCCCR_CISZ	0x000007FF
62 #define SRCCCR_CWA	0x001FF800
63 #define SRCCCR_D	0x00200000
64 #define SRCCCR_RS	0x01C00000
65 #define SRCCCR_NAL	0x3E000000
66 #define SRCCCR_RA	0xC0000000
67 
68 #define SRCCA_CA	0x0FFFFFFF
69 #define SRCCA_RS	0xE0000000
70 
71 #define SRCSA_SA	0x0FFFFFFF
72 
73 #define SRCLA_LA	0x0FFFFFFF
74 
75 /* Mixer Parameter Ring ram Low and Hight register.
76  * Fixed-point value in 8.24 format for parameter channel */
77 #define MPRLH_PITCH	0xFFFFFFFF
78 
79 /* SRC resource register dirty flags */
80 union src_dirty {
81 	struct {
82 		u16 ctl:1;
83 		u16 ccr:1;
84 		u16 sa:1;
85 		u16 la:1;
86 		u16 ca:1;
87 		u16 mpr:1;
88 		u16 czbfs:1;	/* Clear Z-Buffers */
89 		u16 rsv:9;
90 	} bf;
91 	u16 data;
92 };
93 
94 struct src_rsc_ctrl_blk {
95 	unsigned int	ctl;
96 	unsigned int 	ccr;
97 	unsigned int	ca;
98 	unsigned int	sa;
99 	unsigned int	la;
100 	unsigned int	mpr;
101 	union src_dirty	dirty;
102 };
103 
104 /* SRC manager control block */
105 union src_mgr_dirty {
106 	struct {
107 		u16 enb0:1;
108 		u16 enb1:1;
109 		u16 enb2:1;
110 		u16 enb3:1;
111 		u16 enb4:1;
112 		u16 enb5:1;
113 		u16 enb6:1;
114 		u16 enb7:1;
115 		u16 enbsa:1;
116 		u16 rsv:7;
117 	} bf;
118 	u16 data;
119 };
120 
121 struct src_mgr_ctrl_blk {
122 	unsigned int		enbsa;
123 	unsigned int		enb[8];
124 	union src_mgr_dirty	dirty;
125 };
126 
127 /* SRCIMP manager control block */
128 #define SRCAIM_ARC	0x00000FFF
129 #define SRCAIM_NXT	0x00FF0000
130 #define SRCAIM_SRC	0xFF000000
131 
132 struct srcimap {
133 	unsigned int srcaim;
134 	unsigned int idx;
135 };
136 
137 /* SRCIMP manager register dirty flags */
138 union srcimp_mgr_dirty {
139 	struct {
140 		u16 srcimap:1;
141 		u16 rsv:15;
142 	} bf;
143 	u16 data;
144 };
145 
146 struct srcimp_mgr_ctrl_blk {
147 	struct srcimap		srcimap;
148 	union srcimp_mgr_dirty	dirty;
149 };
150 
151 /*
152  * Function implementation block.
153  */
154 
155 static int src_get_rsc_ctrl_blk(void **rblk)
156 {
157 	struct src_rsc_ctrl_blk *blk;
158 
159 	*rblk = NULL;
160 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
161 	if (NULL == blk)
162 		return -ENOMEM;
163 
164 	*rblk = blk;
165 
166 	return 0;
167 }
168 
169 static int src_put_rsc_ctrl_blk(void *blk)
170 {
171 	kfree((struct src_rsc_ctrl_blk *)blk);
172 
173 	return 0;
174 }
175 
176 static int src_set_state(void *blk, unsigned int state)
177 {
178 	struct src_rsc_ctrl_blk *ctl = blk;
179 
180 	set_field(&ctl->ctl, SRCCTL_STATE, state);
181 	ctl->dirty.bf.ctl = 1;
182 	return 0;
183 }
184 
185 static int src_set_bm(void *blk, unsigned int bm)
186 {
187 	struct src_rsc_ctrl_blk *ctl = blk;
188 
189 	set_field(&ctl->ctl, SRCCTL_BM, bm);
190 	ctl->dirty.bf.ctl = 1;
191 	return 0;
192 }
193 
194 static int src_set_rsr(void *blk, unsigned int rsr)
195 {
196 	struct src_rsc_ctrl_blk *ctl = blk;
197 
198 	set_field(&ctl->ctl, SRCCTL_RSR, rsr);
199 	ctl->dirty.bf.ctl = 1;
200 	return 0;
201 }
202 
203 static int src_set_sf(void *blk, unsigned int sf)
204 {
205 	struct src_rsc_ctrl_blk *ctl = blk;
206 
207 	set_field(&ctl->ctl, SRCCTL_SF, sf);
208 	ctl->dirty.bf.ctl = 1;
209 	return 0;
210 }
211 
212 static int src_set_wr(void *blk, unsigned int wr)
213 {
214 	struct src_rsc_ctrl_blk *ctl = blk;
215 
216 	set_field(&ctl->ctl, SRCCTL_WR, wr);
217 	ctl->dirty.bf.ctl = 1;
218 	return 0;
219 }
220 
221 static int src_set_pm(void *blk, unsigned int pm)
222 {
223 	struct src_rsc_ctrl_blk *ctl = blk;
224 
225 	set_field(&ctl->ctl, SRCCTL_PM, pm);
226 	ctl->dirty.bf.ctl = 1;
227 	return 0;
228 }
229 
230 static int src_set_rom(void *blk, unsigned int rom)
231 {
232 	struct src_rsc_ctrl_blk *ctl = blk;
233 
234 	set_field(&ctl->ctl, SRCCTL_ROM, rom);
235 	ctl->dirty.bf.ctl = 1;
236 	return 0;
237 }
238 
239 static int src_set_vo(void *blk, unsigned int vo)
240 {
241 	struct src_rsc_ctrl_blk *ctl = blk;
242 
243 	set_field(&ctl->ctl, SRCCTL_VO, vo);
244 	ctl->dirty.bf.ctl = 1;
245 	return 0;
246 }
247 
248 static int src_set_st(void *blk, unsigned int st)
249 {
250 	struct src_rsc_ctrl_blk *ctl = blk;
251 
252 	set_field(&ctl->ctl, SRCCTL_ST, st);
253 	ctl->dirty.bf.ctl = 1;
254 	return 0;
255 }
256 
257 static int src_set_ie(void *blk, unsigned int ie)
258 {
259 	struct src_rsc_ctrl_blk *ctl = blk;
260 
261 	set_field(&ctl->ctl, SRCCTL_IE, ie);
262 	ctl->dirty.bf.ctl = 1;
263 	return 0;
264 }
265 
266 static int src_set_ilsz(void *blk, unsigned int ilsz)
267 {
268 	struct src_rsc_ctrl_blk *ctl = blk;
269 
270 	set_field(&ctl->ctl, SRCCTL_ILSZ, ilsz);
271 	ctl->dirty.bf.ctl = 1;
272 	return 0;
273 }
274 
275 static int src_set_bp(void *blk, unsigned int bp)
276 {
277 	struct src_rsc_ctrl_blk *ctl = blk;
278 
279 	set_field(&ctl->ctl, SRCCTL_BP, bp);
280 	ctl->dirty.bf.ctl = 1;
281 	return 0;
282 }
283 
284 static int src_set_cisz(void *blk, unsigned int cisz)
285 {
286 	struct src_rsc_ctrl_blk *ctl = blk;
287 
288 	set_field(&ctl->ccr, SRCCCR_CISZ, cisz);
289 	ctl->dirty.bf.ccr = 1;
290 	return 0;
291 }
292 
293 static int src_set_ca(void *blk, unsigned int ca)
294 {
295 	struct src_rsc_ctrl_blk *ctl = blk;
296 
297 	set_field(&ctl->ca, SRCCA_CA, ca);
298 	ctl->dirty.bf.ca = 1;
299 	return 0;
300 }
301 
302 static int src_set_sa(void *blk, unsigned int sa)
303 {
304 	struct src_rsc_ctrl_blk *ctl = blk;
305 
306 	set_field(&ctl->sa, SRCSA_SA, sa);
307 	ctl->dirty.bf.sa = 1;
308 	return 0;
309 }
310 
311 static int src_set_la(void *blk, unsigned int la)
312 {
313 	struct src_rsc_ctrl_blk *ctl = blk;
314 
315 	set_field(&ctl->la, SRCLA_LA, la);
316 	ctl->dirty.bf.la = 1;
317 	return 0;
318 }
319 
320 static int src_set_pitch(void *blk, unsigned int pitch)
321 {
322 	struct src_rsc_ctrl_blk *ctl = blk;
323 
324 	set_field(&ctl->mpr, MPRLH_PITCH, pitch);
325 	ctl->dirty.bf.mpr = 1;
326 	return 0;
327 }
328 
329 static int src_set_clear_zbufs(void *blk, unsigned int clear)
330 {
331 	((struct src_rsc_ctrl_blk *)blk)->dirty.bf.czbfs = (clear ? 1 : 0);
332 	return 0;
333 }
334 
335 static int src_set_dirty(void *blk, unsigned int flags)
336 {
337 	((struct src_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
338 	return 0;
339 }
340 
341 static int src_set_dirty_all(void *blk)
342 {
343 	((struct src_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
344 	return 0;
345 }
346 
347 #define AR_SLOT_SIZE		4096
348 #define AR_SLOT_BLOCK_SIZE	16
349 #define AR_PTS_PITCH		6
350 #define AR_PARAM_SRC_OFFSET	0x60
351 
352 static unsigned int src_param_pitch_mixer(unsigned int src_idx)
353 {
354 	return ((src_idx << 4) + AR_PTS_PITCH + AR_SLOT_SIZE
355 			- AR_PARAM_SRC_OFFSET) % AR_SLOT_SIZE;
356 
357 }
358 
359 static int src_commit_write(struct hw *hw, unsigned int idx, void *blk)
360 {
361 	struct src_rsc_ctrl_blk *ctl = blk;
362 	int i = 0;
363 
364 	if (ctl->dirty.bf.czbfs) {
365 		/* Clear Z-Buffer registers */
366 		for (i = 0; i < 8; i++)
367 			hw_write_20kx(hw, SRC_UPZ+idx*0x100+i*0x4, 0);
368 
369 		for (i = 0; i < 4; i++)
370 			hw_write_20kx(hw, SRC_DN0Z+idx*0x100+i*0x4, 0);
371 
372 		for (i = 0; i < 8; i++)
373 			hw_write_20kx(hw, SRC_DN1Z+idx*0x100+i*0x4, 0);
374 
375 		ctl->dirty.bf.czbfs = 0;
376 	}
377 	if (ctl->dirty.bf.mpr) {
378 		/* Take the parameter mixer resource in the same group as that
379 		 * the idx src is in for simplicity. Unlike src, all conjugate
380 		 * parameter mixer resources must be programmed for
381 		 * corresponding conjugate src resources. */
382 		unsigned int pm_idx = src_param_pitch_mixer(idx);
383 		hw_write_20kx(hw, MIXER_PRING_LO_HI+4*pm_idx, ctl->mpr);
384 		hw_write_20kx(hw, MIXER_PMOPLO+8*pm_idx, 0x3);
385 		hw_write_20kx(hw, MIXER_PMOPHI+8*pm_idx, 0x0);
386 		ctl->dirty.bf.mpr = 0;
387 	}
388 	if (ctl->dirty.bf.sa) {
389 		hw_write_20kx(hw, SRC_SA+idx*0x100, ctl->sa);
390 		ctl->dirty.bf.sa = 0;
391 	}
392 	if (ctl->dirty.bf.la) {
393 		hw_write_20kx(hw, SRC_LA+idx*0x100, ctl->la);
394 		ctl->dirty.bf.la = 0;
395 	}
396 	if (ctl->dirty.bf.ca) {
397 		hw_write_20kx(hw, SRC_CA+idx*0x100, ctl->ca);
398 		ctl->dirty.bf.ca = 0;
399 	}
400 
401 	/* Write srccf register */
402 	hw_write_20kx(hw, SRC_CF+idx*0x100, 0x0);
403 
404 	if (ctl->dirty.bf.ccr) {
405 		hw_write_20kx(hw, SRC_CCR+idx*0x100, ctl->ccr);
406 		ctl->dirty.bf.ccr = 0;
407 	}
408 	if (ctl->dirty.bf.ctl) {
409 		hw_write_20kx(hw, SRC_CTL+idx*0x100, ctl->ctl);
410 		ctl->dirty.bf.ctl = 0;
411 	}
412 
413 	return 0;
414 }
415 
416 static int src_get_ca(struct hw *hw, unsigned int idx, void *blk)
417 {
418 	struct src_rsc_ctrl_blk *ctl = blk;
419 
420 	ctl->ca = hw_read_20kx(hw, SRC_CA+idx*0x100);
421 	ctl->dirty.bf.ca = 0;
422 
423 	return get_field(ctl->ca, SRCCA_CA);
424 }
425 
426 static unsigned int src_get_dirty(void *blk)
427 {
428 	return ((struct src_rsc_ctrl_blk *)blk)->dirty.data;
429 }
430 
431 static unsigned int src_dirty_conj_mask(void)
432 {
433 	return 0x20;
434 }
435 
436 static int src_mgr_enbs_src(void *blk, unsigned int idx)
437 {
438 	((struct src_mgr_ctrl_blk *)blk)->enbsa |= (0x1 << ((idx%128)/4));
439 	((struct src_mgr_ctrl_blk *)blk)->dirty.bf.enbsa = 1;
440 	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
441 	return 0;
442 }
443 
444 static int src_mgr_enb_src(void *blk, unsigned int idx)
445 {
446 	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
447 	((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
448 	return 0;
449 }
450 
451 static int src_mgr_dsb_src(void *blk, unsigned int idx)
452 {
453 	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] &= ~(0x1 << (idx%32));
454 	((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
455 	return 0;
456 }
457 
458 static int src_mgr_commit_write(struct hw *hw, void *blk)
459 {
460 	struct src_mgr_ctrl_blk *ctl = blk;
461 	int i = 0;
462 	unsigned int ret = 0;
463 
464 	if (ctl->dirty.bf.enbsa) {
465 		do {
466 			ret = hw_read_20kx(hw, SRC_ENBSTAT);
467 		} while (ret & 0x1);
468 		hw_write_20kx(hw, SRC_ENBSA, ctl->enbsa);
469 		ctl->dirty.bf.enbsa = 0;
470 	}
471 	for (i = 0; i < 8; i++) {
472 		if ((ctl->dirty.data & (0x1 << i))) {
473 			hw_write_20kx(hw, SRC_ENB+(i*0x100), ctl->enb[i]);
474 			ctl->dirty.data &= ~(0x1 << i);
475 		}
476 	}
477 
478 	return 0;
479 }
480 
481 static int src_mgr_get_ctrl_blk(void **rblk)
482 {
483 	struct src_mgr_ctrl_blk *blk;
484 
485 	*rblk = NULL;
486 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
487 	if (NULL == blk)
488 		return -ENOMEM;
489 
490 	*rblk = blk;
491 
492 	return 0;
493 }
494 
495 static int src_mgr_put_ctrl_blk(void *blk)
496 {
497 	kfree((struct src_mgr_ctrl_blk *)blk);
498 
499 	return 0;
500 }
501 
502 static int srcimp_mgr_get_ctrl_blk(void **rblk)
503 {
504 	struct srcimp_mgr_ctrl_blk *blk;
505 
506 	*rblk = NULL;
507 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
508 	if (NULL == blk)
509 		return -ENOMEM;
510 
511 	*rblk = blk;
512 
513 	return 0;
514 }
515 
516 static int srcimp_mgr_put_ctrl_blk(void *blk)
517 {
518 	kfree((struct srcimp_mgr_ctrl_blk *)blk);
519 
520 	return 0;
521 }
522 
523 static int srcimp_mgr_set_imaparc(void *blk, unsigned int slot)
524 {
525 	struct srcimp_mgr_ctrl_blk *ctl = blk;
526 
527 	set_field(&ctl->srcimap.srcaim, SRCAIM_ARC, slot);
528 	ctl->dirty.bf.srcimap = 1;
529 	return 0;
530 }
531 
532 static int srcimp_mgr_set_imapuser(void *blk, unsigned int user)
533 {
534 	struct srcimp_mgr_ctrl_blk *ctl = blk;
535 
536 	set_field(&ctl->srcimap.srcaim, SRCAIM_SRC, user);
537 	ctl->dirty.bf.srcimap = 1;
538 	return 0;
539 }
540 
541 static int srcimp_mgr_set_imapnxt(void *blk, unsigned int next)
542 {
543 	struct srcimp_mgr_ctrl_blk *ctl = blk;
544 
545 	set_field(&ctl->srcimap.srcaim, SRCAIM_NXT, next);
546 	ctl->dirty.bf.srcimap = 1;
547 	return 0;
548 }
549 
550 static int srcimp_mgr_set_imapaddr(void *blk, unsigned int addr)
551 {
552 	((struct srcimp_mgr_ctrl_blk *)blk)->srcimap.idx = addr;
553 	((struct srcimp_mgr_ctrl_blk *)blk)->dirty.bf.srcimap = 1;
554 	return 0;
555 }
556 
557 static int srcimp_mgr_commit_write(struct hw *hw, void *blk)
558 {
559 	struct srcimp_mgr_ctrl_blk *ctl = blk;
560 
561 	if (ctl->dirty.bf.srcimap) {
562 		hw_write_20kx(hw, SRC_IMAP+ctl->srcimap.idx*0x100,
563 						ctl->srcimap.srcaim);
564 		ctl->dirty.bf.srcimap = 0;
565 	}
566 
567 	return 0;
568 }
569 
570 /*
571  * AMIXER control block definitions.
572  */
573 
574 #define AMOPLO_M	0x00000003
575 #define AMOPLO_IV	0x00000004
576 #define AMOPLO_X	0x0003FFF0
577 #define AMOPLO_Y	0xFFFC0000
578 
579 #define AMOPHI_SADR	0x000000FF
580 #define AMOPHI_SE	0x80000000
581 
582 /* AMIXER resource register dirty flags */
583 union amixer_dirty {
584 	struct {
585 		u16 amoplo:1;
586 		u16 amophi:1;
587 		u16 rsv:14;
588 	} bf;
589 	u16 data;
590 };
591 
592 /* AMIXER resource control block */
593 struct amixer_rsc_ctrl_blk {
594 	unsigned int		amoplo;
595 	unsigned int		amophi;
596 	union amixer_dirty	dirty;
597 };
598 
599 static int amixer_set_mode(void *blk, unsigned int mode)
600 {
601 	struct amixer_rsc_ctrl_blk *ctl = blk;
602 
603 	set_field(&ctl->amoplo, AMOPLO_M, mode);
604 	ctl->dirty.bf.amoplo = 1;
605 	return 0;
606 }
607 
608 static int amixer_set_iv(void *blk, unsigned int iv)
609 {
610 	struct amixer_rsc_ctrl_blk *ctl = blk;
611 
612 	set_field(&ctl->amoplo, AMOPLO_IV, iv);
613 	ctl->dirty.bf.amoplo = 1;
614 	return 0;
615 }
616 
617 static int amixer_set_x(void *blk, unsigned int x)
618 {
619 	struct amixer_rsc_ctrl_blk *ctl = blk;
620 
621 	set_field(&ctl->amoplo, AMOPLO_X, x);
622 	ctl->dirty.bf.amoplo = 1;
623 	return 0;
624 }
625 
626 static int amixer_set_y(void *blk, unsigned int y)
627 {
628 	struct amixer_rsc_ctrl_blk *ctl = blk;
629 
630 	set_field(&ctl->amoplo, AMOPLO_Y, y);
631 	ctl->dirty.bf.amoplo = 1;
632 	return 0;
633 }
634 
635 static int amixer_set_sadr(void *blk, unsigned int sadr)
636 {
637 	struct amixer_rsc_ctrl_blk *ctl = blk;
638 
639 	set_field(&ctl->amophi, AMOPHI_SADR, sadr);
640 	ctl->dirty.bf.amophi = 1;
641 	return 0;
642 }
643 
644 static int amixer_set_se(void *blk, unsigned int se)
645 {
646 	struct amixer_rsc_ctrl_blk *ctl = blk;
647 
648 	set_field(&ctl->amophi, AMOPHI_SE, se);
649 	ctl->dirty.bf.amophi = 1;
650 	return 0;
651 }
652 
653 static int amixer_set_dirty(void *blk, unsigned int flags)
654 {
655 	((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
656 	return 0;
657 }
658 
659 static int amixer_set_dirty_all(void *blk)
660 {
661 	((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
662 	return 0;
663 }
664 
665 static int amixer_commit_write(struct hw *hw, unsigned int idx, void *blk)
666 {
667 	struct amixer_rsc_ctrl_blk *ctl = blk;
668 
669 	if (ctl->dirty.bf.amoplo || ctl->dirty.bf.amophi) {
670 		hw_write_20kx(hw, MIXER_AMOPLO+idx*8, ctl->amoplo);
671 		ctl->dirty.bf.amoplo = 0;
672 		hw_write_20kx(hw, MIXER_AMOPHI+idx*8, ctl->amophi);
673 		ctl->dirty.bf.amophi = 0;
674 	}
675 
676 	return 0;
677 }
678 
679 static int amixer_get_y(void *blk)
680 {
681 	struct amixer_rsc_ctrl_blk *ctl = blk;
682 
683 	return get_field(ctl->amoplo, AMOPLO_Y);
684 }
685 
686 static unsigned int amixer_get_dirty(void *blk)
687 {
688 	return ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data;
689 }
690 
691 static int amixer_rsc_get_ctrl_blk(void **rblk)
692 {
693 	struct amixer_rsc_ctrl_blk *blk;
694 
695 	*rblk = NULL;
696 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
697 	if (NULL == blk)
698 		return -ENOMEM;
699 
700 	*rblk = blk;
701 
702 	return 0;
703 }
704 
705 static int amixer_rsc_put_ctrl_blk(void *blk)
706 {
707 	kfree((struct amixer_rsc_ctrl_blk *)blk);
708 
709 	return 0;
710 }
711 
712 static int amixer_mgr_get_ctrl_blk(void **rblk)
713 {
714 	*rblk = NULL;
715 
716 	return 0;
717 }
718 
719 static int amixer_mgr_put_ctrl_blk(void *blk)
720 {
721 	return 0;
722 }
723 
724 /*
725  * DAIO control block definitions.
726  */
727 
728 /* Receiver Sample Rate Tracker Control register */
729 #define SRTCTL_SRCO	0x000000FF
730 #define SRTCTL_SRCM	0x0000FF00
731 #define SRTCTL_RSR	0x00030000
732 #define SRTCTL_DRAT	0x00300000
733 #define SRTCTL_EC	0x01000000
734 #define SRTCTL_ET	0x10000000
735 
736 /* DAIO Receiver register dirty flags */
737 union dai_dirty {
738 	struct {
739 		u16 srt:1;
740 		u16 rsv:15;
741 	} bf;
742 	u16 data;
743 };
744 
745 /* DAIO Receiver control block */
746 struct dai_ctrl_blk {
747 	unsigned int	srt;
748 	union dai_dirty	dirty;
749 };
750 
751 /* Audio Input Mapper RAM */
752 #define AIM_ARC		0x00000FFF
753 #define AIM_NXT		0x007F0000
754 
755 struct daoimap {
756 	unsigned int aim;
757 	unsigned int idx;
758 };
759 
760 /* Audio Transmitter Control and Status register */
761 #define ATXCTL_EN	0x00000001
762 #define ATXCTL_MODE	0x00000010
763 #define ATXCTL_CD	0x00000020
764 #define ATXCTL_RAW	0x00000100
765 #define ATXCTL_MT	0x00000200
766 #define ATXCTL_NUC	0x00003000
767 #define ATXCTL_BEN	0x00010000
768 #define ATXCTL_BMUX	0x00700000
769 #define ATXCTL_B24	0x01000000
770 #define ATXCTL_CPF	0x02000000
771 #define ATXCTL_RIV	0x10000000
772 #define ATXCTL_LIV	0x20000000
773 #define ATXCTL_RSAT	0x40000000
774 #define ATXCTL_LSAT	0x80000000
775 
776 /* XDIF Transmitter register dirty flags */
777 union dao_dirty {
778 	struct {
779 		u16 atxcsl:1;
780 		u16 rsv:15;
781 	} bf;
782 	u16 data;
783 };
784 
785 /* XDIF Transmitter control block */
786 struct dao_ctrl_blk {
787 	/* XDIF Transmitter Channel Status Low Register */
788 	unsigned int	atxcsl;
789 	union dao_dirty	dirty;
790 };
791 
792 /* Audio Receiver Control register */
793 #define ARXCTL_EN	0x00000001
794 
795 /* DAIO manager register dirty flags */
796 union daio_mgr_dirty {
797 	struct {
798 		u32 atxctl:8;
799 		u32 arxctl:8;
800 		u32 daoimap:1;
801 		u32 rsv:15;
802 	} bf;
803 	u32 data;
804 };
805 
806 /* DAIO manager control block */
807 struct daio_mgr_ctrl_blk {
808 	struct daoimap		daoimap;
809 	unsigned int		txctl[8];
810 	unsigned int		rxctl[8];
811 	union daio_mgr_dirty	dirty;
812 };
813 
814 static int dai_srt_set_srco(void *blk, unsigned int src)
815 {
816 	struct dai_ctrl_blk *ctl = blk;
817 
818 	set_field(&ctl->srt, SRTCTL_SRCO, src);
819 	ctl->dirty.bf.srt = 1;
820 	return 0;
821 }
822 
823 static int dai_srt_set_srcm(void *blk, unsigned int src)
824 {
825 	struct dai_ctrl_blk *ctl = blk;
826 
827 	set_field(&ctl->srt, SRTCTL_SRCM, src);
828 	ctl->dirty.bf.srt = 1;
829 	return 0;
830 }
831 
832 static int dai_srt_set_rsr(void *blk, unsigned int rsr)
833 {
834 	struct dai_ctrl_blk *ctl = blk;
835 
836 	set_field(&ctl->srt, SRTCTL_RSR, rsr);
837 	ctl->dirty.bf.srt = 1;
838 	return 0;
839 }
840 
841 static int dai_srt_set_drat(void *blk, unsigned int drat)
842 {
843 	struct dai_ctrl_blk *ctl = blk;
844 
845 	set_field(&ctl->srt, SRTCTL_DRAT, drat);
846 	ctl->dirty.bf.srt = 1;
847 	return 0;
848 }
849 
850 static int dai_srt_set_ec(void *blk, unsigned int ec)
851 {
852 	struct dai_ctrl_blk *ctl = blk;
853 
854 	set_field(&ctl->srt, SRTCTL_EC, ec ? 1 : 0);
855 	ctl->dirty.bf.srt = 1;
856 	return 0;
857 }
858 
859 static int dai_srt_set_et(void *blk, unsigned int et)
860 {
861 	struct dai_ctrl_blk *ctl = blk;
862 
863 	set_field(&ctl->srt, SRTCTL_ET, et ? 1 : 0);
864 	ctl->dirty.bf.srt = 1;
865 	return 0;
866 }
867 
868 static int dai_commit_write(struct hw *hw, unsigned int idx, void *blk)
869 {
870 	struct dai_ctrl_blk *ctl = blk;
871 
872 	if (ctl->dirty.bf.srt) {
873 		hw_write_20kx(hw, AUDIO_IO_RX_SRT_CTL+0x40*idx, ctl->srt);
874 		ctl->dirty.bf.srt = 0;
875 	}
876 
877 	return 0;
878 }
879 
880 static int dai_get_ctrl_blk(void **rblk)
881 {
882 	struct dai_ctrl_blk *blk;
883 
884 	*rblk = NULL;
885 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
886 	if (NULL == blk)
887 		return -ENOMEM;
888 
889 	*rblk = blk;
890 
891 	return 0;
892 }
893 
894 static int dai_put_ctrl_blk(void *blk)
895 {
896 	kfree((struct dai_ctrl_blk *)blk);
897 
898 	return 0;
899 }
900 
901 static int dao_set_spos(void *blk, unsigned int spos)
902 {
903 	((struct dao_ctrl_blk *)blk)->atxcsl = spos;
904 	((struct dao_ctrl_blk *)blk)->dirty.bf.atxcsl = 1;
905 	return 0;
906 }
907 
908 static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
909 {
910 	struct dao_ctrl_blk *ctl = blk;
911 
912 	if (ctl->dirty.bf.atxcsl) {
913 		if (idx < 4) {
914 			/* S/PDIF SPOSx */
915 			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+0x40*idx,
916 							ctl->atxcsl);
917 		}
918 		ctl->dirty.bf.atxcsl = 0;
919 	}
920 
921 	return 0;
922 }
923 
924 static int dao_get_spos(void *blk, unsigned int *spos)
925 {
926 	*spos = ((struct dao_ctrl_blk *)blk)->atxcsl;
927 	return 0;
928 }
929 
930 static int dao_get_ctrl_blk(void **rblk)
931 {
932 	struct dao_ctrl_blk *blk;
933 
934 	*rblk = NULL;
935 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
936 	if (NULL == blk)
937 		return -ENOMEM;
938 
939 	*rblk = blk;
940 
941 	return 0;
942 }
943 
944 static int dao_put_ctrl_blk(void *blk)
945 {
946 	kfree((struct dao_ctrl_blk *)blk);
947 
948 	return 0;
949 }
950 
951 static int daio_mgr_enb_dai(void *blk, unsigned int idx)
952 {
953 	struct daio_mgr_ctrl_blk *ctl = blk;
954 
955 	set_field(&ctl->rxctl[idx], ARXCTL_EN, 1);
956 	ctl->dirty.bf.arxctl |= (0x1 << idx);
957 	return 0;
958 }
959 
960 static int daio_mgr_dsb_dai(void *blk, unsigned int idx)
961 {
962 	struct daio_mgr_ctrl_blk *ctl = blk;
963 
964 	set_field(&ctl->rxctl[idx], ARXCTL_EN, 0);
965 
966 	ctl->dirty.bf.arxctl |= (0x1 << idx);
967 	return 0;
968 }
969 
970 static int daio_mgr_enb_dao(void *blk, unsigned int idx)
971 {
972 	struct daio_mgr_ctrl_blk *ctl = blk;
973 
974 	set_field(&ctl->txctl[idx], ATXCTL_EN, 1);
975 	ctl->dirty.bf.atxctl |= (0x1 << idx);
976 	return 0;
977 }
978 
979 static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
980 {
981 	struct daio_mgr_ctrl_blk *ctl = blk;
982 
983 	set_field(&ctl->txctl[idx], ATXCTL_EN, 0);
984 	ctl->dirty.bf.atxctl |= (0x1 << idx);
985 	return 0;
986 }
987 
988 static int daio_mgr_dao_init(void *blk, unsigned int idx, unsigned int conf)
989 {
990 	struct daio_mgr_ctrl_blk *ctl = blk;
991 
992 	if (idx < 4) {
993 		/* S/PDIF output */
994 		switch ((conf & 0x7)) {
995 		case 1:
996 			set_field(&ctl->txctl[idx], ATXCTL_NUC, 0);
997 			break;
998 		case 2:
999 			set_field(&ctl->txctl[idx], ATXCTL_NUC, 1);
1000 			break;
1001 		case 4:
1002 			set_field(&ctl->txctl[idx], ATXCTL_NUC, 2);
1003 			break;
1004 		case 8:
1005 			set_field(&ctl->txctl[idx], ATXCTL_NUC, 3);
1006 			break;
1007 		default:
1008 			break;
1009 		}
1010 		/* CDIF */
1011 		set_field(&ctl->txctl[idx], ATXCTL_CD, (!(conf & 0x7)));
1012 		/* Non-audio */
1013 		set_field(&ctl->txctl[idx], ATXCTL_LIV, (conf >> 4) & 0x1);
1014 		/* Non-audio */
1015 		set_field(&ctl->txctl[idx], ATXCTL_RIV, (conf >> 4) & 0x1);
1016 		set_field(&ctl->txctl[idx], ATXCTL_RAW,
1017 			  ((conf >> 3) & 0x1) ? 0 : 0);
1018 		ctl->dirty.bf.atxctl |= (0x1 << idx);
1019 	} else {
1020 		/* I2S output */
1021 		/*idx %= 4; */
1022 	}
1023 	return 0;
1024 }
1025 
1026 static int daio_mgr_set_imaparc(void *blk, unsigned int slot)
1027 {
1028 	struct daio_mgr_ctrl_blk *ctl = blk;
1029 
1030 	set_field(&ctl->daoimap.aim, AIM_ARC, slot);
1031 	ctl->dirty.bf.daoimap = 1;
1032 	return 0;
1033 }
1034 
1035 static int daio_mgr_set_imapnxt(void *blk, unsigned int next)
1036 {
1037 	struct daio_mgr_ctrl_blk *ctl = blk;
1038 
1039 	set_field(&ctl->daoimap.aim, AIM_NXT, next);
1040 	ctl->dirty.bf.daoimap = 1;
1041 	return 0;
1042 }
1043 
1044 static int daio_mgr_set_imapaddr(void *blk, unsigned int addr)
1045 {
1046 	((struct daio_mgr_ctrl_blk *)blk)->daoimap.idx = addr;
1047 	((struct daio_mgr_ctrl_blk *)blk)->dirty.bf.daoimap = 1;
1048 	return 0;
1049 }
1050 
1051 static int daio_mgr_commit_write(struct hw *hw, void *blk)
1052 {
1053 	struct daio_mgr_ctrl_blk *ctl = blk;
1054 	unsigned int data = 0;
1055 	int i = 0;
1056 
1057 	for (i = 0; i < 8; i++) {
1058 		if ((ctl->dirty.bf.atxctl & (0x1 << i))) {
1059 			data = ctl->txctl[i];
1060 			hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
1061 			ctl->dirty.bf.atxctl &= ~(0x1 << i);
1062 			mdelay(1);
1063 		}
1064 		if ((ctl->dirty.bf.arxctl & (0x1 << i))) {
1065 			data = ctl->rxctl[i];
1066 			hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
1067 			ctl->dirty.bf.arxctl &= ~(0x1 << i);
1068 			mdelay(1);
1069 		}
1070 	}
1071 	if (ctl->dirty.bf.daoimap) {
1072 		hw_write_20kx(hw, AUDIO_IO_AIM+ctl->daoimap.idx*4,
1073 						ctl->daoimap.aim);
1074 		ctl->dirty.bf.daoimap = 0;
1075 	}
1076 
1077 	return 0;
1078 }
1079 
1080 static int daio_mgr_get_ctrl_blk(struct hw *hw, void **rblk)
1081 {
1082 	struct daio_mgr_ctrl_blk *blk;
1083 	int i = 0;
1084 
1085 	*rblk = NULL;
1086 	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
1087 	if (NULL == blk)
1088 		return -ENOMEM;
1089 
1090 	for (i = 0; i < 8; i++) {
1091 		blk->txctl[i] = hw_read_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i));
1092 		blk->rxctl[i] = hw_read_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i));
1093 	}
1094 
1095 	*rblk = blk;
1096 
1097 	return 0;
1098 }
1099 
1100 static int daio_mgr_put_ctrl_blk(void *blk)
1101 {
1102 	kfree((struct daio_mgr_ctrl_blk *)blk);
1103 
1104 	return 0;
1105 }
1106 
1107 /* Card hardware initialization block */
1108 struct dac_conf {
1109 	unsigned int msr; /* master sample rate in rsrs */
1110 };
1111 
1112 struct adc_conf {
1113 	unsigned int msr; 	/* master sample rate in rsrs */
1114 	unsigned char input; 	/* the input source of ADC */
1115 	unsigned char mic20db; 	/* boost mic by 20db if input is microphone */
1116 };
1117 
1118 struct daio_conf {
1119 	unsigned int msr; /* master sample rate in rsrs */
1120 };
1121 
1122 struct trn_conf {
1123 	unsigned long vm_pgt_phys;
1124 };
1125 
1126 static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
1127 {
1128 	u32 dwData = 0;
1129 	int i;
1130 
1131 	/* Program I2S with proper sample rate and enable the correct I2S
1132 	 * channel. ED(0/8/16/24): Enable all I2S/I2X master clock output */
1133 	if (1 == info->msr) {
1134 		hw_write_20kx(hw, AUDIO_IO_MCLK, 0x01010101);
1135 		hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x01010101);
1136 		hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
1137 	} else if (2 == info->msr) {
1138 		hw_write_20kx(hw, AUDIO_IO_MCLK, 0x11111111);
1139 		/* Specify all playing 96khz
1140 		 * EA [0]	- Enabled
1141 		 * RTA [4:5]	- 96kHz
1142 		 * EB [8]	- Enabled
1143 		 * RTB [12:13]	- 96kHz
1144 		 * EC [16]	- Enabled
1145 		 * RTC [20:21]	- 96kHz
1146 		 * ED [24]	- Enabled
1147 		 * RTD [28:29]	- 96kHz */
1148 		hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x11111111);
1149 		hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
1150 	} else {
1151 		printk(KERN_ALERT "ctxfi: ERROR!!! Invalid sampling rate!!!\n");
1152 		return -EINVAL;
1153 	}
1154 
1155 	for (i = 0; i < 8; i++) {
1156 		if (i <= 3) {
1157 			/* 1st 3 channels are SPDIFs (SB0960) */
1158 			if (i == 3)
1159 				dwData = 0x1001001;
1160 			else
1161 				dwData = 0x1000001;
1162 
1163 			hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), dwData);
1164 			hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), dwData);
1165 
1166 			/* Initialize the SPDIF Out Channel status registers.
1167 			 * The value specified here is based on the typical
1168 			 * values provided in the specification, namely: Clock
1169 			 * Accuracy of 1000ppm, Sample Rate of 48KHz,
1170 			 * unspecified source number, Generation status = 1,
1171 			 * Category code = 0x12 (Digital Signal Mixer),
1172 			 * Mode = 0, Emph = 0, Copy Permitted, AN = 0
1173 			 * (indicating that we're transmitting digital audio,
1174 			 * and the Professional Use bit is 0. */
1175 
1176 			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+(0x40*i),
1177 					0x02109204); /* Default to 48kHz */
1178 
1179 			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_H+(0x40*i), 0x0B);
1180 		} else {
1181 			/* Next 5 channels are I2S (SB0960) */
1182 			dwData = 0x11;
1183 			hw_write_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i), dwData);
1184 			if (2 == info->msr) {
1185 				/* Four channels per sample period */
1186 				dwData |= 0x1000;
1187 			}
1188 			hw_write_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i), dwData);
1189 		}
1190 	}
1191 
1192 	return 0;
1193 }
1194 
1195 /* TRANSPORT operations */
1196 static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
1197 {
1198 	u32 vmctl = 0, data = 0;
1199 	unsigned long ptp_phys_low = 0, ptp_phys_high = 0;
1200 	int i = 0;
1201 
1202 	/* Set up device page table */
1203 	if ((~0UL) == info->vm_pgt_phys) {
1204 		printk(KERN_ALERT "ctxfi: "
1205 		       "Wrong device page table page address!!!\n");
1206 		return -1;
1207 	}
1208 
1209 	vmctl = 0x80000C0F;  /* 32-bit, 4k-size page */
1210 	ptp_phys_low = (u32)info->vm_pgt_phys;
1211 	ptp_phys_high = upper_32_bits(info->vm_pgt_phys);
1212 	if (sizeof(void *) == 8) /* 64bit address */
1213 		vmctl |= (3 << 8);
1214 	/* Write page table physical address to all PTPAL registers */
1215 	for (i = 0; i < 64; i++) {
1216 		hw_write_20kx(hw, VMEM_PTPAL+(16*i), ptp_phys_low);
1217 		hw_write_20kx(hw, VMEM_PTPAH+(16*i), ptp_phys_high);
1218 	}
1219 	/* Enable virtual memory transfer */
1220 	hw_write_20kx(hw, VMEM_CTL, vmctl);
1221 	/* Enable transport bus master and queueing of request */
1222 	hw_write_20kx(hw, TRANSPORT_CTL, 0x03);
1223 	hw_write_20kx(hw, TRANSPORT_INT, 0x200c01);
1224 	/* Enable transport ring */
1225 	data = hw_read_20kx(hw, TRANSPORT_ENB);
1226 	hw_write_20kx(hw, TRANSPORT_ENB, (data | 0x03));
1227 
1228 	return 0;
1229 }
1230 
1231 /* Card initialization */
1232 #define GCTL_AIE	0x00000001
1233 #define GCTL_UAA	0x00000002
1234 #define GCTL_DPC	0x00000004
1235 #define GCTL_DBP	0x00000008
1236 #define GCTL_ABP	0x00000010
1237 #define GCTL_TBP	0x00000020
1238 #define GCTL_SBP	0x00000040
1239 #define GCTL_FBP	0x00000080
1240 #define GCTL_ME		0x00000100
1241 #define GCTL_AID	0x00001000
1242 
1243 #define PLLCTL_SRC	0x00000007
1244 #define PLLCTL_SPE	0x00000008
1245 #define PLLCTL_RD	0x000000F0
1246 #define PLLCTL_FD	0x0001FF00
1247 #define PLLCTL_OD	0x00060000
1248 #define PLLCTL_B	0x00080000
1249 #define PLLCTL_AS	0x00100000
1250 #define PLLCTL_LF	0x03E00000
1251 #define PLLCTL_SPS	0x1C000000
1252 #define PLLCTL_AD	0x60000000
1253 
1254 #define PLLSTAT_CCS	0x00000007
1255 #define PLLSTAT_SPL	0x00000008
1256 #define PLLSTAT_CRD	0x000000F0
1257 #define PLLSTAT_CFD	0x0001FF00
1258 #define PLLSTAT_SL	0x00020000
1259 #define PLLSTAT_FAS	0x00040000
1260 #define PLLSTAT_B	0x00080000
1261 #define PLLSTAT_PD	0x00100000
1262 #define PLLSTAT_OCA	0x00200000
1263 #define PLLSTAT_NCA	0x00400000
1264 
1265 static int hw_pll_init(struct hw *hw, unsigned int rsr)
1266 {
1267 	unsigned int pllenb;
1268 	unsigned int pllctl;
1269 	unsigned int pllstat;
1270 	int i;
1271 
1272 	pllenb = 0xB;
1273 	hw_write_20kx(hw, PLL_ENB, pllenb);
1274 	pllctl = 0x20D00000;
1275 	set_field(&pllctl, PLLCTL_FD, 16 - 4);
1276 	hw_write_20kx(hw, PLL_CTL, pllctl);
1277 	mdelay(40);
1278 	pllctl = hw_read_20kx(hw, PLL_CTL);
1279 	set_field(&pllctl, PLLCTL_B, 0);
1280 	if (48000 == rsr) {
1281 		set_field(&pllctl, PLLCTL_FD, 16 - 2);
1282 		set_field(&pllctl, PLLCTL_RD, 1 - 1);
1283 	} else { /* 44100 */
1284 		set_field(&pllctl, PLLCTL_FD, 147 - 2);
1285 		set_field(&pllctl, PLLCTL_RD, 10 - 1);
1286 	}
1287 	hw_write_20kx(hw, PLL_CTL, pllctl);
1288 	mdelay(40);
1289 	for (i = 0; i < 1000; i++) {
1290 		pllstat = hw_read_20kx(hw, PLL_STAT);
1291 		if (get_field(pllstat, PLLSTAT_PD))
1292 			continue;
1293 
1294 		if (get_field(pllstat, PLLSTAT_B) !=
1295 					get_field(pllctl, PLLCTL_B))
1296 			continue;
1297 
1298 		if (get_field(pllstat, PLLSTAT_CCS) !=
1299 					get_field(pllctl, PLLCTL_SRC))
1300 			continue;
1301 
1302 		if (get_field(pllstat, PLLSTAT_CRD) !=
1303 					get_field(pllctl, PLLCTL_RD))
1304 			continue;
1305 
1306 		if (get_field(pllstat, PLLSTAT_CFD) !=
1307 					get_field(pllctl, PLLCTL_FD))
1308 			continue;
1309 
1310 		break;
1311 	}
1312 	if (i >= 1000) {
1313 		printk(KERN_ALERT "ctxfi: PLL initialization failed!!!\n");
1314 		return -EBUSY;
1315 	}
1316 
1317 	return 0;
1318 }
1319 
1320 static int hw_auto_init(struct hw *hw)
1321 {
1322 	unsigned int gctl;
1323 	int i;
1324 
1325 	gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
1326 	set_field(&gctl, GCTL_AIE, 0);
1327 	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
1328 	set_field(&gctl, GCTL_AIE, 1);
1329 	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
1330 	mdelay(10);
1331 	for (i = 0; i < 400000; i++) {
1332 		gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
1333 		if (get_field(gctl, GCTL_AID))
1334 			break;
1335 	}
1336 	if (!get_field(gctl, GCTL_AID)) {
1337 		printk(KERN_ALERT "ctxfi: Card Auto-init failed!!!\n");
1338 		return -EBUSY;
1339 	}
1340 
1341 	return 0;
1342 }
1343 
1344 /* DAC operations */
1345 
1346 #define CS4382_MC1 		0x1
1347 #define CS4382_MC2 		0x2
1348 #define CS4382_MC3		0x3
1349 #define CS4382_FC		0x4
1350 #define CS4382_IC		0x5
1351 #define CS4382_XC1		0x6
1352 #define CS4382_VCA1 		0x7
1353 #define CS4382_VCB1 		0x8
1354 #define CS4382_XC2		0x9
1355 #define CS4382_VCA2 		0xA
1356 #define CS4382_VCB2 		0xB
1357 #define CS4382_XC3		0xC
1358 #define CS4382_VCA3		0xD
1359 #define CS4382_VCB3		0xE
1360 #define CS4382_XC4 		0xF
1361 #define CS4382_VCA4 		0x10
1362 #define CS4382_VCB4 		0x11
1363 #define CS4382_CREV 		0x12
1364 
1365 /* I2C status */
1366 #define STATE_LOCKED		0x00
1367 #define STATE_UNLOCKED		0xAA
1368 #define DATA_READY		0x800000    /* Used with I2C_IF_STATUS */
1369 #define DATA_ABORT		0x10000     /* Used with I2C_IF_STATUS */
1370 
1371 #define I2C_STATUS_DCM	0x00000001
1372 #define I2C_STATUS_BC	0x00000006
1373 #define I2C_STATUS_APD	0x00000008
1374 #define I2C_STATUS_AB	0x00010000
1375 #define I2C_STATUS_DR	0x00800000
1376 
1377 #define I2C_ADDRESS_PTAD	0x0000FFFF
1378 #define I2C_ADDRESS_SLAD	0x007F0000
1379 
1380 struct REGS_CS4382 {
1381 	u32 dwModeControl_1;
1382 	u32 dwModeControl_2;
1383 	u32 dwModeControl_3;
1384 
1385 	u32 dwFilterControl;
1386 	u32 dwInvertControl;
1387 
1388 	u32 dwMixControl_P1;
1389 	u32 dwVolControl_A1;
1390 	u32 dwVolControl_B1;
1391 
1392 	u32 dwMixControl_P2;
1393 	u32 dwVolControl_A2;
1394 	u32 dwVolControl_B2;
1395 
1396 	u32 dwMixControl_P3;
1397 	u32 dwVolControl_A3;
1398 	u32 dwVolControl_B3;
1399 
1400 	u32 dwMixControl_P4;
1401 	u32 dwVolControl_A4;
1402 	u32 dwVolControl_B4;
1403 };
1404 
1405 static u8 m_bAddressSize, m_bDataSize, m_bDeviceID;
1406 
1407 static int I2CUnlockFullAccess(struct hw *hw)
1408 {
1409 	u8 UnlockKeySequence_FLASH_FULLACCESS_MODE[2] =  {0xB3, 0xD4};
1410 
1411 	/* Send keys for forced BIOS mode */
1412 	hw_write_20kx(hw, I2C_IF_WLOCK,
1413 			UnlockKeySequence_FLASH_FULLACCESS_MODE[0]);
1414 	hw_write_20kx(hw, I2C_IF_WLOCK,
1415 			UnlockKeySequence_FLASH_FULLACCESS_MODE[1]);
1416 	/* Check whether the chip is unlocked */
1417 	if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_UNLOCKED)
1418 		return 0;
1419 
1420 	return -1;
1421 }
1422 
1423 static int I2CLockChip(struct hw *hw)
1424 {
1425 	/* Write twice */
1426 	hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
1427 	hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
1428 	if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_LOCKED)
1429 		return 0;
1430 
1431 	return -1;
1432 }
1433 
1434 static int I2CInit(struct hw *hw, u8 bDeviceID, u8 bAddressSize, u8 bDataSize)
1435 {
1436 	int err = 0;
1437 	unsigned int RegI2CStatus;
1438 	unsigned int RegI2CAddress;
1439 
1440 	err = I2CUnlockFullAccess(hw);
1441 	if (err < 0)
1442 		return err;
1443 
1444 	m_bAddressSize = bAddressSize;
1445 	m_bDataSize = bDataSize;
1446 	m_bDeviceID = bDeviceID;
1447 
1448 	RegI2CAddress = 0;
1449 	set_field(&RegI2CAddress, I2C_ADDRESS_SLAD, bDeviceID);
1450 
1451 	hw_write_20kx(hw, I2C_IF_ADDRESS, RegI2CAddress);
1452 
1453 	RegI2CStatus = hw_read_20kx(hw, I2C_IF_STATUS);
1454 
1455 	set_field(&RegI2CStatus, I2C_STATUS_DCM, 1); /* Direct control mode */
1456 
1457 	hw_write_20kx(hw, I2C_IF_STATUS, RegI2CStatus);
1458 
1459 	return 0;
1460 }
1461 
1462 static int I2CUninit(struct hw *hw)
1463 {
1464 	unsigned int RegI2CStatus;
1465 	unsigned int RegI2CAddress;
1466 
1467 	RegI2CAddress = 0;
1468 	set_field(&RegI2CAddress, I2C_ADDRESS_SLAD, 0x57); /* I2C id */
1469 
1470 	hw_write_20kx(hw, I2C_IF_ADDRESS, RegI2CAddress);
1471 
1472 	RegI2CStatus = hw_read_20kx(hw, I2C_IF_STATUS);
1473 
1474 	set_field(&RegI2CStatus, I2C_STATUS_DCM, 0); /* I2C mode */
1475 
1476 	hw_write_20kx(hw, I2C_IF_STATUS, RegI2CStatus);
1477 
1478 	return I2CLockChip(hw);
1479 }
1480 
1481 static int I2CWaitDataReady(struct hw *hw)
1482 {
1483 	int i = 0x400000;
1484 	unsigned int ret = 0;
1485 
1486 	do {
1487 		ret = hw_read_20kx(hw, I2C_IF_STATUS);
1488 	} while ((!(ret & DATA_READY)) && --i);
1489 
1490 	return i;
1491 }
1492 
1493 static int I2CRead(struct hw *hw, u16 wAddress, u32 *pdwData)
1494 {
1495 	unsigned int RegI2CStatus;
1496 
1497 	RegI2CStatus = hw_read_20kx(hw, I2C_IF_STATUS);
1498 	set_field(&RegI2CStatus, I2C_STATUS_BC,
1499 			(4 == m_bAddressSize) ? 0 : m_bAddressSize);
1500 	hw_write_20kx(hw, I2C_IF_STATUS, RegI2CStatus);
1501 	if (!I2CWaitDataReady(hw))
1502 		return -1;
1503 
1504 	hw_write_20kx(hw, I2C_IF_WDATA, (u32)wAddress);
1505 	if (!I2CWaitDataReady(hw))
1506 		return -1;
1507 
1508 	/* Force a read operation */
1509 	hw_write_20kx(hw, I2C_IF_RDATA, 0);
1510 	if (!I2CWaitDataReady(hw))
1511 		return -1;
1512 
1513 	*pdwData = hw_read_20kx(hw, I2C_IF_RDATA);
1514 
1515 	return 0;
1516 }
1517 
1518 static int I2CWrite(struct hw *hw, u16 wAddress, u32 dwData)
1519 {
1520 	unsigned int dwI2CData = (dwData << (m_bAddressSize * 8)) | wAddress;
1521 	unsigned int RegI2CStatus;
1522 
1523 	RegI2CStatus = hw_read_20kx(hw, I2C_IF_STATUS);
1524 
1525 	set_field(&RegI2CStatus, I2C_STATUS_BC,
1526 		  (4 == (m_bAddressSize + m_bDataSize)) ?
1527 		  0 : (m_bAddressSize + m_bDataSize));
1528 
1529 	hw_write_20kx(hw, I2C_IF_STATUS, RegI2CStatus);
1530 	I2CWaitDataReady(hw);
1531 	/* Dummy write to trigger the write oprtation */
1532 	hw_write_20kx(hw, I2C_IF_WDATA, 0);
1533 	I2CWaitDataReady(hw);
1534 
1535 	/* This is the real data */
1536 	hw_write_20kx(hw, I2C_IF_WDATA, dwI2CData);
1537 	I2CWaitDataReady(hw);
1538 
1539 	return 0;
1540 }
1541 
1542 static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
1543 {
1544 	int err = 0;
1545 	u32 dwData = 0;
1546 	int i = 0;
1547 	struct REGS_CS4382 cs4382_Read = {0};
1548 	struct REGS_CS4382 cs4382_Def = {
1549 				   0x00000001,  /* Mode Control 1 */
1550 				   0x00000000,  /* Mode Control 2 */
1551 				   0x00000084,  /* Mode Control 3 */
1552 				   0x00000000,  /* Filter Control */
1553 				   0x00000000,  /* Invert Control */
1554 				   0x00000024,  /* Mixing Control Pair 1 */
1555 				   0x00000000,  /* Vol Control A1 */
1556 				   0x00000000,  /* Vol Control B1 */
1557 				   0x00000024,  /* Mixing Control Pair 2 */
1558 				   0x00000000,  /* Vol Control A2 */
1559 				   0x00000000,  /* Vol Control B2 */
1560 				   0x00000024,  /* Mixing Control Pair 3 */
1561 				   0x00000000,  /* Vol Control A3 */
1562 				   0x00000000,  /* Vol Control B3 */
1563 				   0x00000024,  /* Mixing Control Pair 4 */
1564 				   0x00000000,  /* Vol Control A4 */
1565 				   0x00000000   /* Vol Control B4 */
1566 				 };
1567 
1568 	/* Set DAC reset bit as output */
1569 	dwData = hw_read_20kx(hw, GPIO_CTRL);
1570 	dwData |= 0x02;
1571 	hw_write_20kx(hw, GPIO_CTRL, dwData);
1572 
1573 	err = I2CInit(hw, 0x18, 1, 1);
1574 	if (err < 0)
1575 		goto End;
1576 
1577 	for (i = 0; i < 2; i++) {
1578 		/* Reset DAC twice just in-case the chip
1579 		 * didn't initialized properly */
1580 		dwData = hw_read_20kx(hw, GPIO_DATA);
1581 		/* GPIO data bit 1 */
1582 		dwData &= 0xFFFFFFFD;
1583 		hw_write_20kx(hw, GPIO_DATA, dwData);
1584 		mdelay(10);
1585 		dwData |= 0x2;
1586 		hw_write_20kx(hw, GPIO_DATA, dwData);
1587 		mdelay(50);
1588 
1589 		/* Reset the 2nd time */
1590 		dwData &= 0xFFFFFFFD;
1591 		hw_write_20kx(hw, GPIO_DATA, dwData);
1592 		mdelay(10);
1593 		dwData |= 0x2;
1594 		hw_write_20kx(hw, GPIO_DATA, dwData);
1595 		mdelay(50);
1596 
1597 		if (I2CRead(hw, CS4382_MC1,  &cs4382_Read.dwModeControl_1))
1598 			continue;
1599 
1600 		if (I2CRead(hw, CS4382_MC2,  &cs4382_Read.dwModeControl_2))
1601 			continue;
1602 
1603 		if (I2CRead(hw, CS4382_MC3,  &cs4382_Read.dwModeControl_3))
1604 			continue;
1605 
1606 		if (I2CRead(hw, CS4382_FC,   &cs4382_Read.dwFilterControl))
1607 			continue;
1608 
1609 		if (I2CRead(hw, CS4382_IC,   &cs4382_Read.dwInvertControl))
1610 			continue;
1611 
1612 		if (I2CRead(hw, CS4382_XC1,  &cs4382_Read.dwMixControl_P1))
1613 			continue;
1614 
1615 		if (I2CRead(hw, CS4382_VCA1, &cs4382_Read.dwVolControl_A1))
1616 			continue;
1617 
1618 		if (I2CRead(hw, CS4382_VCB1, &cs4382_Read.dwVolControl_B1))
1619 			continue;
1620 
1621 		if (I2CRead(hw, CS4382_XC2,  &cs4382_Read.dwMixControl_P2))
1622 			continue;
1623 
1624 		if (I2CRead(hw, CS4382_VCA2, &cs4382_Read.dwVolControl_A2))
1625 			continue;
1626 
1627 		if (I2CRead(hw, CS4382_VCB2, &cs4382_Read.dwVolControl_B2))
1628 			continue;
1629 
1630 		if (I2CRead(hw, CS4382_XC3,  &cs4382_Read.dwMixControl_P3))
1631 			continue;
1632 
1633 		if (I2CRead(hw, CS4382_VCA3, &cs4382_Read.dwVolControl_A3))
1634 			continue;
1635 
1636 		if (I2CRead(hw, CS4382_VCB3, &cs4382_Read.dwVolControl_B3))
1637 			continue;
1638 
1639 		if (I2CRead(hw, CS4382_XC4,  &cs4382_Read.dwMixControl_P4))
1640 			continue;
1641 
1642 		if (I2CRead(hw, CS4382_VCA4, &cs4382_Read.dwVolControl_A4))
1643 			continue;
1644 
1645 		if (I2CRead(hw, CS4382_VCB4, &cs4382_Read.dwVolControl_B4))
1646 			continue;
1647 
1648 		if (memcmp(&cs4382_Read, &cs4382_Def,
1649 						sizeof(struct REGS_CS4382)))
1650 			continue;
1651 		else
1652 			break;
1653 	}
1654 
1655 	if (i >= 2)
1656 		goto End;
1657 
1658 	/* Note: Every I2C write must have some delay.
1659 	 * This is not a requirement but the delay works here... */
1660 	I2CWrite(hw, CS4382_MC1, 0x80);
1661 	I2CWrite(hw, CS4382_MC2, 0x10);
1662 	if (1 == info->msr) {
1663 		I2CWrite(hw, CS4382_XC1, 0x24);
1664 		I2CWrite(hw, CS4382_XC2, 0x24);
1665 		I2CWrite(hw, CS4382_XC3, 0x24);
1666 		I2CWrite(hw, CS4382_XC4, 0x24);
1667 	} else if (2 == info->msr) {
1668 		I2CWrite(hw, CS4382_XC1, 0x25);
1669 		I2CWrite(hw, CS4382_XC2, 0x25);
1670 		I2CWrite(hw, CS4382_XC3, 0x25);
1671 		I2CWrite(hw, CS4382_XC4, 0x25);
1672 	} else {
1673 		I2CWrite(hw, CS4382_XC1, 0x26);
1674 		I2CWrite(hw, CS4382_XC2, 0x26);
1675 		I2CWrite(hw, CS4382_XC3, 0x26);
1676 		I2CWrite(hw, CS4382_XC4, 0x26);
1677 	}
1678 
1679 	return 0;
1680 End:
1681 
1682 	I2CUninit(hw);
1683 	return -1;
1684 }
1685 
1686 /* ADC operations */
1687 #define MAKE_WM8775_ADDR(addr, data)	(u32)(((addr<<1)&0xFE)|((data>>8)&0x1))
1688 #define MAKE_WM8775_DATA(data)	(u32)(data&0xFF)
1689 
1690 #define WM8775_IC       0x0B
1691 #define WM8775_MMC      0x0C
1692 #define WM8775_AADCL    0x0E
1693 #define WM8775_AADCR    0x0F
1694 #define WM8775_ADCMC    0x15
1695 #define WM8775_RESET    0x17
1696 
1697 static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
1698 {
1699 	u32 data = 0;
1700 
1701 	data = hw_read_20kx(hw, GPIO_DATA);
1702 	switch (type) {
1703 	case ADC_MICIN:
1704 		data = (data & (0x1 << 14)) ? 1 : 0;
1705 		break;
1706 	case ADC_LINEIN:
1707 		data = (data & (0x1 << 14)) ? 0 : 1;
1708 		break;
1709 	default:
1710 		data = 0;
1711 	}
1712 	return data;
1713 }
1714 
1715 static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
1716 {
1717 	u32 data = 0;
1718 
1719 	data = hw_read_20kx(hw, GPIO_DATA);
1720 	switch (type) {
1721 	case ADC_MICIN:
1722 		data |= (0x1 << 14);
1723 		hw_write_20kx(hw, GPIO_DATA, data);
1724 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
1725 				MAKE_WM8775_DATA(0x101)); /* Mic-in */
1726 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
1727 				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
1728 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
1729 				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
1730 		break;
1731 	case ADC_LINEIN:
1732 		data &= ~(0x1 << 14);
1733 		hw_write_20kx(hw, GPIO_DATA, data);
1734 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x102),
1735 				MAKE_WM8775_DATA(0x102)); /* Line-in */
1736 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xCF),
1737 				MAKE_WM8775_DATA(0xCF)); /* No boost */
1738 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xCF),
1739 				MAKE_WM8775_DATA(0xCF)); /* No boost */
1740 		break;
1741 	default:
1742 		break;
1743 	}
1744 
1745 	return 0;
1746 }
1747 
1748 static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
1749 {
1750 	int err = 0;
1751 	u32 dwMux = 2, dwData = 0, dwCtl = 0;
1752 
1753 	/*  Set ADC reset bit as output */
1754 	dwData = hw_read_20kx(hw, GPIO_CTRL);
1755 	dwData |= (0x1 << 15);
1756 	hw_write_20kx(hw, GPIO_CTRL, dwData);
1757 
1758 	/* Initialize I2C */
1759 	err = I2CInit(hw, 0x1A, 1, 1);
1760 	if (err < 0) {
1761 		printk(KERN_ALERT "ctxfi: Failure to acquire I2C!!!\n");
1762 		goto error;
1763 	}
1764 
1765 	/* Make ADC in normal operation */
1766 	dwData = hw_read_20kx(hw, GPIO_DATA);
1767 	dwData &= ~(0x1 << 15);
1768 	mdelay(10);
1769 	dwData |= (0x1 << 15);
1770 	hw_write_20kx(hw, GPIO_DATA, dwData);
1771 	mdelay(50);
1772 
1773 	/* Set the master mode (256fs) */
1774 	if (1 == info->msr) {
1775 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x02),
1776 						MAKE_WM8775_DATA(0x02));
1777 	} else if (2 == info->msr) {
1778 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x0A),
1779 						MAKE_WM8775_DATA(0x0A));
1780 	} else {
1781 		printk(KERN_ALERT "ctxfi: Invalid master sampling "
1782 				  "rate (msr %d)!!!\n", info->msr);
1783 		err = -EINVAL;
1784 		goto error;
1785 	}
1786 
1787 	/* Configure GPIO bit 14 change to line-in/mic-in */
1788 	dwCtl = hw_read_20kx(hw, GPIO_CTRL);
1789 	dwCtl |= 0x1<<14;
1790 	hw_write_20kx(hw, GPIO_CTRL, dwCtl);
1791 
1792 	/* Check using Mic-in or Line-in */
1793 	dwData = hw_read_20kx(hw, GPIO_DATA);
1794 
1795 	if (dwMux == 1) {
1796 		/* Configures GPIO data to select Mic-in */
1797 		dwData |= 0x1<<14;
1798 		hw_write_20kx(hw, GPIO_DATA, dwData);
1799 
1800 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
1801 				MAKE_WM8775_DATA(0x101)); /* Mic-in */
1802 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
1803 				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
1804 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
1805 				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
1806 	} else if (dwMux == 2) {
1807 		/* Configures GPIO data to select Line-in */
1808 		dwData &= ~(0x1<<14);
1809 		hw_write_20kx(hw, GPIO_DATA, dwData);
1810 
1811 		/* Setup ADC */
1812 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x102),
1813 				MAKE_WM8775_DATA(0x102)); /* Line-in */
1814 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xCF),
1815 				MAKE_WM8775_DATA(0xCF)); /* No boost */
1816 		I2CWrite(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xCF),
1817 				MAKE_WM8775_DATA(0xCF)); /* No boost */
1818 	} else {
1819 		printk(KERN_ALERT "ctxfi: ERROR!!! Invalid input mux!!!\n");
1820 		err = -EINVAL;
1821 		goto error;
1822 	}
1823 
1824 	return 0;
1825 
1826 error:
1827 	I2CUninit(hw);
1828 	return err;
1829 }
1830 
1831 static int hw_have_digit_io_switch(struct hw *hw)
1832 {
1833 	return 0;
1834 }
1835 
1836 static int hw_card_start(struct hw *hw)
1837 {
1838 	int err = 0;
1839 	struct pci_dev *pci = hw->pci;
1840 	unsigned int gctl;
1841 
1842 	err = pci_enable_device(pci);
1843 	if (err < 0)
1844 		return err;
1845 
1846 	/* Set DMA transfer mask */
1847 	if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
1848 	    pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
1849 		printk(KERN_ERR "ctxfi: architecture does not support PCI "
1850 		"busmaster DMA with mask 0x%llx\n", CT_XFI_DMA_MASK);
1851 		err = -ENXIO;
1852 		goto error1;
1853 	}
1854 
1855 	err = pci_request_regions(pci, "XFi");
1856 	if (err < 0)
1857 		goto error1;
1858 
1859 	hw->io_base = pci_resource_start(hw->pci, 2);
1860 	hw->mem_base = (unsigned long)ioremap(hw->io_base,
1861 					pci_resource_len(hw->pci, 2));
1862 	if (NULL == (void *)hw->mem_base) {
1863 		err = -ENOENT;
1864 		goto error2;
1865 	}
1866 
1867 	/* Switch to 20k2 mode from UAA mode. */
1868 	gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
1869 	set_field(&gctl, GCTL_UAA, 0);
1870 	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
1871 
1872 	/*if ((err = request_irq(pci->irq, ct_atc_interrupt, IRQF_SHARED,
1873 				atc->chip_details->nm_card, hw))) {
1874 		goto error3;
1875 	}
1876 	hw->irq = pci->irq;
1877 	*/
1878 
1879 	pci_set_master(pci);
1880 
1881 	return 0;
1882 
1883 /*error3:
1884 	iounmap((void *)hw->mem_base);
1885 	hw->mem_base = (unsigned long)NULL;*/
1886 error2:
1887 	pci_release_regions(pci);
1888 	hw->io_base = 0;
1889 error1:
1890 	pci_disable_device(pci);
1891 	return err;
1892 }
1893 
1894 static int hw_card_stop(struct hw *hw)
1895 {
1896 	/* TODO: Disable interrupt and so on... */
1897 	return 0;
1898 }
1899 
1900 static int hw_card_shutdown(struct hw *hw)
1901 {
1902 	if (hw->irq >= 0)
1903 		free_irq(hw->irq, hw);
1904 
1905 	hw->irq	= -1;
1906 
1907 	if (NULL != ((void *)hw->mem_base))
1908 		iounmap((void *)hw->mem_base);
1909 
1910 	hw->mem_base = (unsigned long)NULL;
1911 
1912 	if (hw->io_base)
1913 		pci_release_regions(hw->pci);
1914 
1915 	hw->io_base = 0;
1916 
1917 	pci_disable_device(hw->pci);
1918 
1919 	return 0;
1920 }
1921 
1922 static int hw_card_init(struct hw *hw, struct card_conf *info)
1923 {
1924 	int err;
1925 	unsigned int gctl;
1926 	u32 data = 0;
1927 	struct dac_conf dac_info = {0};
1928 	struct adc_conf adc_info = {0};
1929 	struct daio_conf daio_info = {0};
1930 	struct trn_conf trn_info = {0};
1931 
1932 	/* Get PCI io port/memory base address and
1933 	 * do 20kx core switch if needed. */
1934 	if (!hw->io_base) {
1935 		err = hw_card_start(hw);
1936 		if (err)
1937 			return err;
1938 	}
1939 
1940 	/* PLL init */
1941 	err = hw_pll_init(hw, info->rsr);
1942 	if (err < 0)
1943 		return err;
1944 
1945 	/* kick off auto-init */
1946 	err = hw_auto_init(hw);
1947 	if (err < 0)
1948 		return err;
1949 
1950 	gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
1951 	set_field(&gctl, GCTL_DBP, 1);
1952 	set_field(&gctl, GCTL_TBP, 1);
1953 	set_field(&gctl, GCTL_FBP, 1);
1954 	set_field(&gctl, GCTL_DPC, 0);
1955 	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
1956 
1957 	/* Reset all global pending interrupts */
1958 	hw_write_20kx(hw, INTERRUPT_GIE, 0);
1959 	/* Reset all SRC pending interrupts */
1960 	hw_write_20kx(hw, SRC_IP, 0);
1961 
1962 	/* TODO: detect the card ID and configure GPIO accordingly. */
1963 	/* Configures GPIO (0xD802 0x98028) */
1964 	/*hw_write_20kx(hw, GPIO_CTRL, 0x7F07);*/
1965 	/* Configures GPIO (SB0880) */
1966 	/*hw_write_20kx(hw, GPIO_CTRL, 0xFF07);*/
1967 	hw_write_20kx(hw, GPIO_CTRL, 0xD802);
1968 
1969 	/* Enable audio ring */
1970 	hw_write_20kx(hw, MIXER_AR_ENABLE, 0x01);
1971 
1972 	trn_info.vm_pgt_phys = info->vm_pgt_phys;
1973 	err = hw_trn_init(hw, &trn_info);
1974 	if (err < 0)
1975 		return err;
1976 
1977 	daio_info.msr = info->msr;
1978 	err = hw_daio_init(hw, &daio_info);
1979 	if (err < 0)
1980 		return err;
1981 
1982 	dac_info.msr = info->msr;
1983 	err = hw_dac_init(hw, &dac_info);
1984 	if (err < 0)
1985 		return err;
1986 
1987 	adc_info.msr = info->msr;
1988 	adc_info.input = ADC_LINEIN;
1989 	adc_info.mic20db = 0;
1990 	err = hw_adc_init(hw, &adc_info);
1991 	if (err < 0)
1992 		return err;
1993 
1994 	data = hw_read_20kx(hw, SRC_MCTL);
1995 	data |= 0x1; /* Enables input from the audio ring */
1996 	hw_write_20kx(hw, SRC_MCTL, data);
1997 
1998 	return 0;
1999 }
2000 
2001 static u32 hw_read_20kx(struct hw *hw, u32 reg)
2002 {
2003 	return readl((void *)(hw->mem_base + reg));
2004 }
2005 
2006 static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
2007 {
2008 	writel(data, (void *)(hw->mem_base + reg));
2009 }
2010 
2011 static struct hw ct20k2_preset __devinitdata = {
2012 	.irq = -1,
2013 
2014 	.card_init = hw_card_init,
2015 	.card_stop = hw_card_stop,
2016 	.pll_init = hw_pll_init,
2017 	.is_adc_source_selected = hw_is_adc_input_selected,
2018 	.select_adc_source = hw_adc_input_select,
2019 	.have_digit_io_switch = hw_have_digit_io_switch,
2020 
2021 	.src_rsc_get_ctrl_blk = src_get_rsc_ctrl_blk,
2022 	.src_rsc_put_ctrl_blk = src_put_rsc_ctrl_blk,
2023 	.src_mgr_get_ctrl_blk = src_mgr_get_ctrl_blk,
2024 	.src_mgr_put_ctrl_blk = src_mgr_put_ctrl_blk,
2025 	.src_set_state = src_set_state,
2026 	.src_set_bm = src_set_bm,
2027 	.src_set_rsr = src_set_rsr,
2028 	.src_set_sf = src_set_sf,
2029 	.src_set_wr = src_set_wr,
2030 	.src_set_pm = src_set_pm,
2031 	.src_set_rom = src_set_rom,
2032 	.src_set_vo = src_set_vo,
2033 	.src_set_st = src_set_st,
2034 	.src_set_ie = src_set_ie,
2035 	.src_set_ilsz = src_set_ilsz,
2036 	.src_set_bp = src_set_bp,
2037 	.src_set_cisz = src_set_cisz,
2038 	.src_set_ca = src_set_ca,
2039 	.src_set_sa = src_set_sa,
2040 	.src_set_la = src_set_la,
2041 	.src_set_pitch = src_set_pitch,
2042 	.src_set_dirty = src_set_dirty,
2043 	.src_set_clear_zbufs = src_set_clear_zbufs,
2044 	.src_set_dirty_all = src_set_dirty_all,
2045 	.src_commit_write = src_commit_write,
2046 	.src_get_ca = src_get_ca,
2047 	.src_get_dirty = src_get_dirty,
2048 	.src_dirty_conj_mask = src_dirty_conj_mask,
2049 	.src_mgr_enbs_src = src_mgr_enbs_src,
2050 	.src_mgr_enb_src = src_mgr_enb_src,
2051 	.src_mgr_dsb_src = src_mgr_dsb_src,
2052 	.src_mgr_commit_write = src_mgr_commit_write,
2053 
2054 	.srcimp_mgr_get_ctrl_blk = srcimp_mgr_get_ctrl_blk,
2055 	.srcimp_mgr_put_ctrl_blk = srcimp_mgr_put_ctrl_blk,
2056 	.srcimp_mgr_set_imaparc = srcimp_mgr_set_imaparc,
2057 	.srcimp_mgr_set_imapuser = srcimp_mgr_set_imapuser,
2058 	.srcimp_mgr_set_imapnxt = srcimp_mgr_set_imapnxt,
2059 	.srcimp_mgr_set_imapaddr = srcimp_mgr_set_imapaddr,
2060 	.srcimp_mgr_commit_write = srcimp_mgr_commit_write,
2061 
2062 	.amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
2063 	.amixer_rsc_put_ctrl_blk = amixer_rsc_put_ctrl_blk,
2064 	.amixer_mgr_get_ctrl_blk = amixer_mgr_get_ctrl_blk,
2065 	.amixer_mgr_put_ctrl_blk = amixer_mgr_put_ctrl_blk,
2066 	.amixer_set_mode = amixer_set_mode,
2067 	.amixer_set_iv = amixer_set_iv,
2068 	.amixer_set_x = amixer_set_x,
2069 	.amixer_set_y = amixer_set_y,
2070 	.amixer_set_sadr = amixer_set_sadr,
2071 	.amixer_set_se = amixer_set_se,
2072 	.amixer_set_dirty = amixer_set_dirty,
2073 	.amixer_set_dirty_all = amixer_set_dirty_all,
2074 	.amixer_commit_write = amixer_commit_write,
2075 	.amixer_get_y = amixer_get_y,
2076 	.amixer_get_dirty = amixer_get_dirty,
2077 
2078 	.dai_get_ctrl_blk = dai_get_ctrl_blk,
2079 	.dai_put_ctrl_blk = dai_put_ctrl_blk,
2080 	.dai_srt_set_srco = dai_srt_set_srco,
2081 	.dai_srt_set_srcm = dai_srt_set_srcm,
2082 	.dai_srt_set_rsr = dai_srt_set_rsr,
2083 	.dai_srt_set_drat = dai_srt_set_drat,
2084 	.dai_srt_set_ec = dai_srt_set_ec,
2085 	.dai_srt_set_et = dai_srt_set_et,
2086 	.dai_commit_write = dai_commit_write,
2087 
2088 	.dao_get_ctrl_blk = dao_get_ctrl_blk,
2089 	.dao_put_ctrl_blk = dao_put_ctrl_blk,
2090 	.dao_set_spos = dao_set_spos,
2091 	.dao_commit_write = dao_commit_write,
2092 	.dao_get_spos = dao_get_spos,
2093 
2094 	.daio_mgr_get_ctrl_blk = daio_mgr_get_ctrl_blk,
2095 	.daio_mgr_put_ctrl_blk = daio_mgr_put_ctrl_blk,
2096 	.daio_mgr_enb_dai = daio_mgr_enb_dai,
2097 	.daio_mgr_dsb_dai = daio_mgr_dsb_dai,
2098 	.daio_mgr_enb_dao = daio_mgr_enb_dao,
2099 	.daio_mgr_dsb_dao = daio_mgr_dsb_dao,
2100 	.daio_mgr_dao_init = daio_mgr_dao_init,
2101 	.daio_mgr_set_imaparc = daio_mgr_set_imaparc,
2102 	.daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
2103 	.daio_mgr_set_imapaddr = daio_mgr_set_imapaddr,
2104 	.daio_mgr_commit_write = daio_mgr_commit_write,
2105 };
2106 
2107 int __devinit create_20k2_hw_obj(struct hw **rhw)
2108 {
2109 	struct hw *hw;
2110 
2111 	*rhw = NULL;
2112 	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
2113 	if (NULL == hw)
2114 		return -ENOMEM;
2115 
2116 	*hw = ct20k2_preset;
2117 	*rhw = hw;
2118 
2119 	return 0;
2120 }
2121 
2122 int destroy_20k2_hw_obj(struct hw *hw)
2123 {
2124 	if (hw->io_base)
2125 		hw_card_shutdown(hw);
2126 
2127 	kfree(hw);
2128 	return 0;
2129 }
2130