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 * Someday its supposed to make use of the WT DMA engine
19 * for a Wavetable synthesizer.
20 */
21
22#include "au88x0.h"
23#include "au88x0_wt.h"
24
25static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en);
26static void vortex_connection_adb_mixin(vortex_t * vortex, int en,
27					unsigned char channel,
28					unsigned char source,
29					unsigned char mixin);
30static void vortex_connection_mixin_mix(vortex_t * vortex, int en,
31					unsigned char mixin,
32					unsigned char mix, int a);
33static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j);
34static int vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
35			    u32 val);
36
37/* WT */
38
39/* Put 2 WT channels together for one stereo interlaced channel. */
40static void vortex_wt_setstereo(vortex_t * vortex, u32 wt, u32 stereo)
41{
42	int temp;
43
44	//temp = hwread(vortex->mmio, 0x80 + ((wt >> 0x5)<< 0xf) + (((wt & 0x1f) >> 1) << 2));
45	temp = hwread(vortex->mmio, WT_STEREO(wt));
46	temp = (temp & 0xfe) | (stereo & 1);
47	//hwwrite(vortex->mmio, 0x80 + ((wt >> 0x5)<< 0xf) + (((wt & 0x1f) >> 1) << 2), temp);
48	hwwrite(vortex->mmio, WT_STEREO(wt), temp);
49}
50
51/* Join to mixdown route. */
52static void vortex_wt_setdsout(vortex_t * vortex, u32 wt, int en)
53{
54	int temp;
55
56	/* There is one DSREG register for each bank (32 voices each). */
57	temp = hwread(vortex->mmio, WT_DSREG((wt >= 0x20) ? 1 : 0));
58	if (en)
59		temp |= (1 << (wt & 0x1f));
60	else
61		temp &= ~(1 << (wt & 0x1f));
62	hwwrite(vortex->mmio, WT_DSREG((wt >= 0x20) ? 1 : 0), temp);
63}
64
65/* Setup WT route. */
66static int vortex_wt_allocroute(vortex_t * vortex, int wt, int nr_ch)
67{
68	wt_voice_t *voice = &(vortex->wt_voice[wt]);
69	int temp;
70
71	//FIXME: WT audio routing.
72	if (nr_ch) {
73		vortex_fifo_wtinitialize(vortex, wt, 1);
74		vortex_fifo_setwtvalid(vortex, wt, 1);
75		vortex_wt_setstereo(vortex, wt, nr_ch - 1);
76	} else
77		vortex_fifo_setwtvalid(vortex, wt, 0);
78
79	/* Set mixdown mode. */
80	vortex_wt_setdsout(vortex, wt, 1);
81	/* Set other parameter registers. */
82	hwwrite(vortex->mmio, WT_SRAMP(0), 0x880000);
83	//hwwrite(vortex->mmio, WT_GMODE(0), 0xffffffff);
84#ifdef CHIP_AU8830
85	hwwrite(vortex->mmio, WT_SRAMP(1), 0x880000);
86	//hwwrite(vortex->mmio, WT_GMODE(1), 0xffffffff);
87#endif
88	hwwrite(vortex->mmio, WT_PARM(wt, 0), 0);
89	hwwrite(vortex->mmio, WT_PARM(wt, 1), 0);
90	hwwrite(vortex->mmio, WT_PARM(wt, 2), 0);
91
92	temp = hwread(vortex->mmio, WT_PARM(wt, 3));
93	dev_dbg(vortex->card->dev, "WT PARM3: %x\n", temp);
94	//hwwrite(vortex->mmio, WT_PARM(wt, 3), temp);
95
96	hwwrite(vortex->mmio, WT_DELAY(wt, 0), 0);
97	hwwrite(vortex->mmio, WT_DELAY(wt, 1), 0);
98	hwwrite(vortex->mmio, WT_DELAY(wt, 2), 0);
99	hwwrite(vortex->mmio, WT_DELAY(wt, 3), 0);
100
101	dev_dbg(vortex->card->dev, "WT GMODE: %x\n",
102		hwread(vortex->mmio, WT_GMODE(wt)));
103
104	hwwrite(vortex->mmio, WT_PARM(wt, 2), 0xffffffff);
105	hwwrite(vortex->mmio, WT_PARM(wt, 3), 0xcff1c810);
106
107	voice->parm0 = voice->parm1 = 0xcfb23e2f;
108	hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
109	hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
110	dev_dbg(vortex->card->dev, "WT GMODE 2 : %x\n",
111		hwread(vortex->mmio, WT_GMODE(wt)));
112	return 0;
113}
114
115
116static void vortex_wt_connect(vortex_t * vortex, int en)
117{
118	int i, ii, mix;
119
120#define NR_WTROUTES 6
121#ifdef CHIP_AU8830
122#define NR_WTBLOCKS 2
123#else
124#define NR_WTBLOCKS 1
125#endif
126
127	for (i = 0; i < NR_WTBLOCKS; i++) {
128		for (ii = 0; ii < NR_WTROUTES; ii++) {
129			mix =
130			    vortex_adb_checkinout(vortex,
131						  vortex->fixed_res, en,
132						  VORTEX_RESOURCE_MIXIN);
133			vortex->mixwt[(i * NR_WTROUTES) + ii] = mix;
134
135			vortex_route(vortex, en, 0x11,
136				     ADB_WTOUT(i, ii + 0x20), ADB_MIXIN(mix));
137
138			vortex_connection_mixin_mix(vortex, en, mix,
139						    vortex->mixplayb[ii % 2], 0);
140			if (VORTEX_IS_QUAD(vortex))
141				vortex_connection_mixin_mix(vortex, en,
142							    mix,
143							    vortex->mixplayb[2 +
144								     (ii % 2)], 0);
145		}
146	}
147	for (i = 0; i < NR_WT; i++) {
148		hwwrite(vortex->mmio, WT_RUN(i), 1);
149	}
150}
151
152/* Read WT Register */
153#if 0
154static int vortex_wt_GetReg(vortex_t * vortex, char reg, int wt)
155{
156	//int eax, esi;
157
158	if (reg == 4) {
159		return hwread(vortex->mmio, WT_PARM(wt, 3));
160	}
161	if (reg == 7) {
162		return hwread(vortex->mmio, WT_GMODE(wt));
163	}
164
165	return 0;
166}
167
168/* WT hardware abstraction layer generic register interface. */
169static int
170vortex_wt_SetReg2(vortex_t * vortex, unsigned char reg, int wt,
171		  u16 val)
172{
173	/*
174	   int eax, edx;
175
176	   if (wt >= NR_WT)  // 0x40 -> NR_WT
177	   return 0;
178
179	   if ((reg - 0x20) > 0) {
180	   if ((reg - 0x21) != 0)
181	   return 0;
182	   eax = ((((b & 0xff) << 0xb) + (edx & 0xff)) << 4) + 0x208; // param 2
183	   } else {
184	   eax = ((((b & 0xff) << 0xb) + (edx & 0xff)) << 4) + 0x20a; // param 3
185	   }
186	   hwwrite(vortex->mmio, eax, c);
187	 */
188	return 1;
189}
190
191/*public: static void __thiscall CWTHal::SetReg(unsigned char,int,unsigned long) */
192#endif
193static int
194vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
195		 u32 val)
196{
197	int ecx;
198
199	if ((reg == 5) || ((reg >= 7) && (reg <= 10)) || (reg == 0xc)) {
200		if (wt >= (NR_WT / NR_WT_PB)) {
201			dev_warn(vortex->card->dev,
202				 "WT SetReg: bank out of range. reg=0x%x, wt=%d\n",
203				 reg, wt);
204			return 0;
205		}
206	} else {
207		if (wt >= NR_WT) {
208			dev_err(vortex->card->dev,
209				"WT SetReg: voice out of range\n");
210			return 0;
211		}
212	}
213	if (reg > 0xc)
214		return 0;
215
216	switch (reg) {
217		/* Voice specific parameters */
218	case 0:		/* running */
219		/*
220		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
221		       WT_RUN(wt), (int)val);
222		*/
223		hwwrite(vortex->mmio, WT_RUN(wt), val);
224		return 0xc;
225	case 1:		/* param 0 */
226		/*
227		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
228		       WT_PARM(wt,0), (int)val);
229		*/
230		hwwrite(vortex->mmio, WT_PARM(wt, 0), val);
231		return 0xc;
232	case 2:		/* param 1 */
233		/*
234		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
235		       WT_PARM(wt,1), (int)val);
236		*/
237		hwwrite(vortex->mmio, WT_PARM(wt, 1), val);
238		return 0xc;
239	case 3:		/* param 2 */
240		/*
241		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
242		       WT_PARM(wt,2), (int)val);
243		*/
244		hwwrite(vortex->mmio, WT_PARM(wt, 2), val);
245		return 0xc;
246	case 4:		/* param 3 */
247		/*
248		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
249		       WT_PARM(wt,3), (int)val);
250		*/
251		hwwrite(vortex->mmio, WT_PARM(wt, 3), val);
252		return 0xc;
253	case 6:		/* mute */
254		/*
255		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
256		       WT_MUTE(wt), (int)val);
257		*/
258		hwwrite(vortex->mmio, WT_MUTE(wt), val);
259		return 0xc;
260	case 0xb:
261			/* delay */
262		/*
263		pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n",
264		       WT_DELAY(wt,0), (int)val);
265		*/
266		hwwrite(vortex->mmio, WT_DELAY(wt, 3), val);
267		hwwrite(vortex->mmio, WT_DELAY(wt, 2), val);
268		hwwrite(vortex->mmio, WT_DELAY(wt, 1), val);
269		hwwrite(vortex->mmio, WT_DELAY(wt, 0), val);
270		return 0xc;
271		/* Global WT block parameters */
272	case 5:		/* sramp */
273		ecx = WT_SRAMP(wt);
274		break;
275	case 8:		/* aramp */
276		ecx = WT_ARAMP(wt);
277		break;
278	case 9:		/* mramp */
279		ecx = WT_MRAMP(wt);
280		break;
281	case 0xa:		/* ctrl */
282		ecx = WT_CTRL(wt);
283		break;
284	case 0xc:		/* ds_reg */
285		ecx = WT_DSREG(wt);
286		break;
287	default:
288		return 0;
289	}
290	/*
291	pr_debug( "vortex: WT SetReg(0x%x) = 0x%08x\n", ecx, (int)val);
292	*/
293	hwwrite(vortex->mmio, ecx, val);
294	return 1;
295}
296
297static void vortex_wt_init(vortex_t * vortex)
298{
299	u32 var4, var8, varc, var10 = 0, edi;
300
301	var10 &= 0xFFFFFFE3;
302	var10 |= 0x22;
303	var10 &= 0xFFFFFEBF;
304	var10 |= 0x80;
305	var10 |= 0x200;
306	var10 &= 0xfffffffe;
307	var10 &= 0xfffffbff;
308	var10 |= 0x1800;
309	// var10 = 0x1AA2
310	var4 = 0x10000000;
311	varc = 0x00830000;
312	var8 = 0x00830000;
313
314	/* Init Bank registers. */
315	for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++) {
316		vortex_wt_SetReg(vortex, 0xc, edi, 0);	/* ds_reg */
317		vortex_wt_SetReg(vortex, 0xa, edi, var10);	/* ctrl  */
318		vortex_wt_SetReg(vortex, 0x9, edi, var4);	/* mramp */
319		vortex_wt_SetReg(vortex, 0x8, edi, varc);	/* aramp */
320		vortex_wt_SetReg(vortex, 0x5, edi, var8);	/* sramp */
321	}
322	/* Init Voice registers. */
323	for (edi = 0; edi < NR_WT; edi++) {
324		vortex_wt_SetReg(vortex, 0x4, edi, 0);	/* param 3 0x20c */
325		vortex_wt_SetReg(vortex, 0x3, edi, 0);	/* param 2 0x208 */
326		vortex_wt_SetReg(vortex, 0x2, edi, 0);	/* param 1 0x204 */
327		vortex_wt_SetReg(vortex, 0x1, edi, 0);	/* param 0 0x200 */
328		vortex_wt_SetReg(vortex, 0xb, edi, 0);	/* delay 0x400 - 0x40c */
329	}
330	var10 |= 1;
331	for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++)
332		vortex_wt_SetReg(vortex, 0xa, edi, var10);	/* ctrl */
333}
334
335/* Extract of CAdbTopology::SetVolume(struct _ASPVOLUME *) */
336#if 0
337static void vortex_wt_SetVolume(vortex_t * vortex, int wt, int vol[])
338{
339	wt_voice_t *voice = &(vortex->wt_voice[wt]);
340	int ecx = vol[1], eax = vol[0];
341
342	/* This is pure guess */
343	voice->parm0 &= 0xff00ffff;
344	voice->parm0 |= (vol[0] & 0xff) << 0x10;
345	voice->parm1 &= 0xff00ffff;
346	voice->parm1 |= (vol[1] & 0xff) << 0x10;
347
348	/* This is real */
349	hwwrite(vortex, WT_PARM(wt, 0), voice->parm0);
350	hwwrite(vortex, WT_PARM(wt, 1), voice->parm0);
351
352	if (voice->this_1D0 & 4) {
353		eax >>= 8;
354		ecx = eax;
355		if (ecx < 0x80)
356			ecx = 0x7f;
357		voice->parm3 &= 0xFFFFC07F;
358		voice->parm3 |= (ecx & 0x7f) << 7;
359		voice->parm3 &= 0xFFFFFF80;
360		voice->parm3 |= (eax & 0x7f);
361	} else {
362		voice->parm3 &= 0xFFE03FFF;
363		voice->parm3 |= (eax & 0xFE00) << 5;
364	}
365
366	hwwrite(vortex, WT_PARM(wt, 3), voice->parm3);
367}
368
369/* Extract of CAdbTopology::SetFrequency(unsigned long arg_0) */
370static void vortex_wt_SetFrequency(vortex_t * vortex, int wt, unsigned int sr)
371{
372	wt_voice_t *voice = &(vortex->wt_voice[wt]);
373	u32 eax, edx;
374
375	//FIXME: 64 bit operation.
376	eax = ((sr << 0xf) * 0x57619F1) & 0xffffffff;
377	edx = (((sr << 0xf) * 0x57619F1)) >> 0x20;
378
379	edx >>= 0xa;
380	edx <<= 1;
381	if (edx) {
382		if (edx & 0x0FFF80000)
383			eax = 0x7fff;
384		else {
385			edx <<= 0xd;
386			eax = 7;
387			while ((edx & 0x80000000) == 0) {
388				edx <<= 1;
389				eax--;
390				if (eax == 0)
391					break;
392			}
393			if (eax)
394				edx <<= 1;
395			eax <<= 0xc;
396			edx >>= 0x14;
397			eax |= edx;
398		}
399	} else
400		eax = 0;
401	voice->parm0 &= 0xffff0001;
402	voice->parm0 |= (eax & 0x7fff) << 1;
403	voice->parm1 = voice->parm0 | 1;
404	// Wt: this_1D4
405	//AuWt::WriteReg((ulong)(this_1DC<<4)+0x200, (ulong)this_1E4);
406	//AuWt::WriteReg((ulong)(this_1DC<<4)+0x204, (ulong)this_1E8);
407	hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
408	hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
409}
410#endif
411
412/* End of File */
413