xref: /openbmc/linux/sound/pci/au88x0/au88x0_synth.c (revision d0b73b48)
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 
25 static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en);
26 static void vortex_connection_adb_mixin(vortex_t * vortex, int en,
27 					unsigned char channel,
28 					unsigned char source,
29 					unsigned char mixin);
30 static void vortex_connection_mixin_mix(vortex_t * vortex, int en,
31 					unsigned char mixin,
32 					unsigned char mix, int a);
33 static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j);
34 static 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. */
40 static 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. */
52 static 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. */
66 static 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 	printk(KERN_DEBUG "vortex: 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 	printk(KERN_DEBUG "vortex: WT GMODE: %x\n", hwread(vortex->mmio, WT_GMODE(wt)));
102 
103 	hwwrite(vortex->mmio, WT_PARM(wt, 2), 0xffffffff);
104 	hwwrite(vortex->mmio, WT_PARM(wt, 3), 0xcff1c810);
105 
106 	voice->parm0 = voice->parm1 = 0xcfb23e2f;
107 	hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
108 	hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
109 	printk(KERN_DEBUG "vortex: WT GMODE 2 : %x\n", hwread(vortex->mmio, WT_GMODE(wt)));
110 	return 0;
111 }
112 
113 
114 static void vortex_wt_connect(vortex_t * vortex, int en)
115 {
116 	int i, ii, mix;
117 
118 #define NR_WTROUTES 6
119 #ifdef CHIP_AU8830
120 #define NR_WTBLOCKS 2
121 #else
122 #define NR_WTBLOCKS 1
123 #endif
124 
125 	for (i = 0; i < NR_WTBLOCKS; i++) {
126 		for (ii = 0; ii < NR_WTROUTES; ii++) {
127 			mix =
128 			    vortex_adb_checkinout(vortex,
129 						  vortex->fixed_res, en,
130 						  VORTEX_RESOURCE_MIXIN);
131 			vortex->mixwt[(i * NR_WTROUTES) + ii] = mix;
132 
133 			vortex_route(vortex, en, 0x11,
134 				     ADB_WTOUT(i, ii + 0x20), ADB_MIXIN(mix));
135 
136 			vortex_connection_mixin_mix(vortex, en, mix,
137 						    vortex->mixplayb[ii % 2], 0);
138 			if (VORTEX_IS_QUAD(vortex))
139 				vortex_connection_mixin_mix(vortex, en,
140 							    mix,
141 							    vortex->mixplayb[2 +
142 								     (ii % 2)], 0);
143 		}
144 	}
145 	for (i = 0; i < NR_WT; i++) {
146 		hwwrite(vortex->mmio, WT_RUN(i), 1);
147 	}
148 }
149 
150 /* Read WT Register */
151 #if 0
152 static int vortex_wt_GetReg(vortex_t * vortex, char reg, int wt)
153 {
154 	//int eax, esi;
155 
156 	if (reg == 4) {
157 		return hwread(vortex->mmio, WT_PARM(wt, 3));
158 	}
159 	if (reg == 7) {
160 		return hwread(vortex->mmio, WT_GMODE(wt));
161 	}
162 
163 	return 0;
164 }
165 
166 /* WT hardware abstraction layer generic register interface. */
167 static int
168 vortex_wt_SetReg2(vortex_t * vortex, unsigned char reg, int wt,
169 		  u16 val)
170 {
171 	/*
172 	   int eax, edx;
173 
174 	   if (wt >= NR_WT)  // 0x40 -> NR_WT
175 	   return 0;
176 
177 	   if ((reg - 0x20) > 0) {
178 	   if ((reg - 0x21) != 0)
179 	   return 0;
180 	   eax = ((((b & 0xff) << 0xb) + (edx & 0xff)) << 4) + 0x208; // param 2
181 	   } else {
182 	   eax = ((((b & 0xff) << 0xb) + (edx & 0xff)) << 4) + 0x20a; // param 3
183 	   }
184 	   hwwrite(vortex->mmio, eax, c);
185 	 */
186 	return 1;
187 }
188 
189 /*public: static void __thiscall CWTHal::SetReg(unsigned char,int,unsigned long) */
190 #endif
191 static int
192 vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
193 		 u32 val)
194 {
195 	int ecx;
196 
197 	if ((reg == 5) || ((reg >= 7) && (reg <= 10)) || (reg == 0xc)) {
198 		if (wt >= (NR_WT / NR_WT_PB)) {
199 			printk
200 			    ("vortex: WT SetReg: bank out of range. reg=0x%x, wt=%d\n",
201 			     reg, wt);
202 			return 0;
203 		}
204 	} else {
205 		if (wt >= NR_WT) {
206 			printk(KERN_ERR "vortex: WT SetReg: voice out of range\n");
207 			return 0;
208 		}
209 	}
210 	if (reg > 0xc)
211 		return 0;
212 
213 	switch (reg) {
214 		/* Voice specific parameters */
215 	case 0:		/* running */
216 		/*
217 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
218 		       WT_RUN(wt), (int)val);
219 		*/
220 		hwwrite(vortex->mmio, WT_RUN(wt), val);
221 		return 0xc;
222 		break;
223 	case 1:		/* param 0 */
224 		/*
225 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
226 		       WT_PARM(wt,0), (int)val);
227 		*/
228 		hwwrite(vortex->mmio, WT_PARM(wt, 0), val);
229 		return 0xc;
230 		break;
231 	case 2:		/* param 1 */
232 		/*
233 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
234 		       WT_PARM(wt,1), (int)val);
235 		*/
236 		hwwrite(vortex->mmio, WT_PARM(wt, 1), val);
237 		return 0xc;
238 		break;
239 	case 3:		/* param 2 */
240 		/*
241 		printk(KERN_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 		break;
247 	case 4:		/* param 3 */
248 		/*
249 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
250 		       WT_PARM(wt,3), (int)val);
251 		*/
252 		hwwrite(vortex->mmio, WT_PARM(wt, 3), val);
253 		return 0xc;
254 		break;
255 	case 6:		/* mute */
256 		/*
257 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
258 		       WT_MUTE(wt), (int)val);
259 		*/
260 		hwwrite(vortex->mmio, WT_MUTE(wt), val);
261 		return 0xc;
262 		break;
263 	case 0xb:
264 		{		/* delay */
265 			/*
266 			printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
267 			       WT_DELAY(wt,0), (int)val);
268 			*/
269 			hwwrite(vortex->mmio, WT_DELAY(wt, 3), val);
270 			hwwrite(vortex->mmio, WT_DELAY(wt, 2), val);
271 			hwwrite(vortex->mmio, WT_DELAY(wt, 1), val);
272 			hwwrite(vortex->mmio, WT_DELAY(wt, 0), val);
273 			return 0xc;
274 		}
275 		break;
276 		/* Global WT block parameters */
277 	case 5:		/* sramp */
278 		ecx = WT_SRAMP(wt);
279 		break;
280 	case 8:		/* aramp */
281 		ecx = WT_ARAMP(wt);
282 		break;
283 	case 9:		/* mramp */
284 		ecx = WT_MRAMP(wt);
285 		break;
286 	case 0xa:		/* ctrl */
287 		ecx = WT_CTRL(wt);
288 		break;
289 	case 0xc:		/* ds_reg */
290 		ecx = WT_DSREG(wt);
291 		break;
292 	default:
293 		return 0;
294 		break;
295 	}
296 	/*
297 	printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n", ecx, (int)val);
298 	*/
299 	hwwrite(vortex->mmio, ecx, val);
300 	return 1;
301 }
302 
303 static void vortex_wt_init(vortex_t * vortex)
304 {
305 	u32 var4, var8, varc, var10 = 0, edi;
306 
307 	var10 &= 0xFFFFFFE3;
308 	var10 |= 0x22;
309 	var10 &= 0xFFFFFEBF;
310 	var10 |= 0x80;
311 	var10 |= 0x200;
312 	var10 &= 0xfffffffe;
313 	var10 &= 0xfffffbff;
314 	var10 |= 0x1800;
315 	// var10 = 0x1AA2
316 	var4 = 0x10000000;
317 	varc = 0x00830000;
318 	var8 = 0x00830000;
319 
320 	/* Init Bank registers. */
321 	for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++) {
322 		vortex_wt_SetReg(vortex, 0xc, edi, 0);	/* ds_reg */
323 		vortex_wt_SetReg(vortex, 0xa, edi, var10);	/* ctrl  */
324 		vortex_wt_SetReg(vortex, 0x9, edi, var4);	/* mramp */
325 		vortex_wt_SetReg(vortex, 0x8, edi, varc);	/* aramp */
326 		vortex_wt_SetReg(vortex, 0x5, edi, var8);	/* sramp */
327 	}
328 	/* Init Voice registers. */
329 	for (edi = 0; edi < NR_WT; edi++) {
330 		vortex_wt_SetReg(vortex, 0x4, edi, 0);	/* param 3 0x20c */
331 		vortex_wt_SetReg(vortex, 0x3, edi, 0);	/* param 2 0x208 */
332 		vortex_wt_SetReg(vortex, 0x2, edi, 0);	/* param 1 0x204 */
333 		vortex_wt_SetReg(vortex, 0x1, edi, 0);	/* param 0 0x200 */
334 		vortex_wt_SetReg(vortex, 0xb, edi, 0);	/* delay 0x400 - 0x40c */
335 	}
336 	var10 |= 1;
337 	for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++)
338 		vortex_wt_SetReg(vortex, 0xa, edi, var10);	/* ctrl */
339 }
340 
341 /* Extract of CAdbTopology::SetVolume(struct _ASPVOLUME *) */
342 #if 0
343 static void vortex_wt_SetVolume(vortex_t * vortex, int wt, int vol[])
344 {
345 	wt_voice_t *voice = &(vortex->wt_voice[wt]);
346 	int ecx = vol[1], eax = vol[0];
347 
348 	/* This is pure guess */
349 	voice->parm0 &= 0xff00ffff;
350 	voice->parm0 |= (vol[0] & 0xff) << 0x10;
351 	voice->parm1 &= 0xff00ffff;
352 	voice->parm1 |= (vol[1] & 0xff) << 0x10;
353 
354 	/* This is real */
355 	hwwrite(vortex, WT_PARM(wt, 0), voice->parm0);
356 	hwwrite(vortex, WT_PARM(wt, 1), voice->parm0);
357 
358 	if (voice->this_1D0 & 4) {
359 		eax >>= 8;
360 		ecx = eax;
361 		if (ecx < 0x80)
362 			ecx = 0x7f;
363 		voice->parm3 &= 0xFFFFC07F;
364 		voice->parm3 |= (ecx & 0x7f) << 7;
365 		voice->parm3 &= 0xFFFFFF80;
366 		voice->parm3 |= (eax & 0x7f);
367 	} else {
368 		voice->parm3 &= 0xFFE03FFF;
369 		voice->parm3 |= (eax & 0xFE00) << 5;
370 	}
371 
372 	hwwrite(vortex, WT_PARM(wt, 3), voice->parm3);
373 }
374 
375 /* Extract of CAdbTopology::SetFrequency(unsigned long arg_0) */
376 static void vortex_wt_SetFrequency(vortex_t * vortex, int wt, unsigned int sr)
377 {
378 	wt_voice_t *voice = &(vortex->wt_voice[wt]);
379 	u32 eax, edx;
380 
381 	//FIXME: 64 bit operation.
382 	eax = ((sr << 0xf) * 0x57619F1) & 0xffffffff;
383 	edx = (((sr << 0xf) * 0x57619F1)) >> 0x20;
384 
385 	edx >>= 0xa;
386 	edx <<= 1;
387 	if (edx) {
388 		if (edx & 0x0FFF80000)
389 			eax = 0x7fff;
390 		else {
391 			edx <<= 0xd;
392 			eax = 7;
393 			while ((edx & 0x80000000) == 0) {
394 				edx <<= 1;
395 				eax--;
396 				if (eax == 0)
397 					break;
398 			}
399 			if (eax)
400 				edx <<= 1;
401 			eax <<= 0xc;
402 			edx >>= 0x14;
403 			eax |= edx;
404 		}
405 	} else
406 		eax = 0;
407 	voice->parm0 &= 0xffff0001;
408 	voice->parm0 |= (eax & 0x7fff) << 1;
409 	voice->parm1 = voice->parm0 | 1;
410 	// Wt: this_1D4
411 	//AuWt::WriteReg((ulong)(this_1DC<<4)+0x200, (ulong)this_1E4);
412 	//AuWt::WriteReg((ulong)(this_1DC<<4)+0x204, (ulong)this_1E8);
413 	hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
414 	hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
415 }
416 #endif
417 
418 /* End of File */
419