xref: /openbmc/linux/sound/pci/au88x0/au88x0_synth.c (revision b34e08d5)
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 	case 1:		/* param 0 */
223 		/*
224 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
225 		       WT_PARM(wt,0), (int)val);
226 		*/
227 		hwwrite(vortex->mmio, WT_PARM(wt, 0), val);
228 		return 0xc;
229 	case 2:		/* param 1 */
230 		/*
231 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
232 		       WT_PARM(wt,1), (int)val);
233 		*/
234 		hwwrite(vortex->mmio, WT_PARM(wt, 1), val);
235 		return 0xc;
236 	case 3:		/* param 2 */
237 		/*
238 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
239 		       WT_PARM(wt,2), (int)val);
240 		*/
241 		hwwrite(vortex->mmio, WT_PARM(wt, 2), val);
242 		return 0xc;
243 	case 4:		/* param 3 */
244 		/*
245 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
246 		       WT_PARM(wt,3), (int)val);
247 		*/
248 		hwwrite(vortex->mmio, WT_PARM(wt, 3), val);
249 		return 0xc;
250 	case 6:		/* mute */
251 		/*
252 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
253 		       WT_MUTE(wt), (int)val);
254 		*/
255 		hwwrite(vortex->mmio, WT_MUTE(wt), val);
256 		return 0xc;
257 	case 0xb:
258 			/* delay */
259 		/*
260 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
261 		       WT_DELAY(wt,0), (int)val);
262 		*/
263 		hwwrite(vortex->mmio, WT_DELAY(wt, 3), val);
264 		hwwrite(vortex->mmio, WT_DELAY(wt, 2), val);
265 		hwwrite(vortex->mmio, WT_DELAY(wt, 1), val);
266 		hwwrite(vortex->mmio, WT_DELAY(wt, 0), val);
267 		return 0xc;
268 		/* Global WT block parameters */
269 	case 5:		/* sramp */
270 		ecx = WT_SRAMP(wt);
271 		break;
272 	case 8:		/* aramp */
273 		ecx = WT_ARAMP(wt);
274 		break;
275 	case 9:		/* mramp */
276 		ecx = WT_MRAMP(wt);
277 		break;
278 	case 0xa:		/* ctrl */
279 		ecx = WT_CTRL(wt);
280 		break;
281 	case 0xc:		/* ds_reg */
282 		ecx = WT_DSREG(wt);
283 		break;
284 	default:
285 		return 0;
286 	}
287 	/*
288 	printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n", ecx, (int)val);
289 	*/
290 	hwwrite(vortex->mmio, ecx, val);
291 	return 1;
292 }
293 
294 static void vortex_wt_init(vortex_t * vortex)
295 {
296 	u32 var4, var8, varc, var10 = 0, edi;
297 
298 	var10 &= 0xFFFFFFE3;
299 	var10 |= 0x22;
300 	var10 &= 0xFFFFFEBF;
301 	var10 |= 0x80;
302 	var10 |= 0x200;
303 	var10 &= 0xfffffffe;
304 	var10 &= 0xfffffbff;
305 	var10 |= 0x1800;
306 	// var10 = 0x1AA2
307 	var4 = 0x10000000;
308 	varc = 0x00830000;
309 	var8 = 0x00830000;
310 
311 	/* Init Bank registers. */
312 	for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++) {
313 		vortex_wt_SetReg(vortex, 0xc, edi, 0);	/* ds_reg */
314 		vortex_wt_SetReg(vortex, 0xa, edi, var10);	/* ctrl  */
315 		vortex_wt_SetReg(vortex, 0x9, edi, var4);	/* mramp */
316 		vortex_wt_SetReg(vortex, 0x8, edi, varc);	/* aramp */
317 		vortex_wt_SetReg(vortex, 0x5, edi, var8);	/* sramp */
318 	}
319 	/* Init Voice registers. */
320 	for (edi = 0; edi < NR_WT; edi++) {
321 		vortex_wt_SetReg(vortex, 0x4, edi, 0);	/* param 3 0x20c */
322 		vortex_wt_SetReg(vortex, 0x3, edi, 0);	/* param 2 0x208 */
323 		vortex_wt_SetReg(vortex, 0x2, edi, 0);	/* param 1 0x204 */
324 		vortex_wt_SetReg(vortex, 0x1, edi, 0);	/* param 0 0x200 */
325 		vortex_wt_SetReg(vortex, 0xb, edi, 0);	/* delay 0x400 - 0x40c */
326 	}
327 	var10 |= 1;
328 	for (edi = 0; edi < (NR_WT / NR_WT_PB); edi++)
329 		vortex_wt_SetReg(vortex, 0xa, edi, var10);	/* ctrl */
330 }
331 
332 /* Extract of CAdbTopology::SetVolume(struct _ASPVOLUME *) */
333 #if 0
334 static void vortex_wt_SetVolume(vortex_t * vortex, int wt, int vol[])
335 {
336 	wt_voice_t *voice = &(vortex->wt_voice[wt]);
337 	int ecx = vol[1], eax = vol[0];
338 
339 	/* This is pure guess */
340 	voice->parm0 &= 0xff00ffff;
341 	voice->parm0 |= (vol[0] & 0xff) << 0x10;
342 	voice->parm1 &= 0xff00ffff;
343 	voice->parm1 |= (vol[1] & 0xff) << 0x10;
344 
345 	/* This is real */
346 	hwwrite(vortex, WT_PARM(wt, 0), voice->parm0);
347 	hwwrite(vortex, WT_PARM(wt, 1), voice->parm0);
348 
349 	if (voice->this_1D0 & 4) {
350 		eax >>= 8;
351 		ecx = eax;
352 		if (ecx < 0x80)
353 			ecx = 0x7f;
354 		voice->parm3 &= 0xFFFFC07F;
355 		voice->parm3 |= (ecx & 0x7f) << 7;
356 		voice->parm3 &= 0xFFFFFF80;
357 		voice->parm3 |= (eax & 0x7f);
358 	} else {
359 		voice->parm3 &= 0xFFE03FFF;
360 		voice->parm3 |= (eax & 0xFE00) << 5;
361 	}
362 
363 	hwwrite(vortex, WT_PARM(wt, 3), voice->parm3);
364 }
365 
366 /* Extract of CAdbTopology::SetFrequency(unsigned long arg_0) */
367 static void vortex_wt_SetFrequency(vortex_t * vortex, int wt, unsigned int sr)
368 {
369 	wt_voice_t *voice = &(vortex->wt_voice[wt]);
370 	u32 eax, edx;
371 
372 	//FIXME: 64 bit operation.
373 	eax = ((sr << 0xf) * 0x57619F1) & 0xffffffff;
374 	edx = (((sr << 0xf) * 0x57619F1)) >> 0x20;
375 
376 	edx >>= 0xa;
377 	edx <<= 1;
378 	if (edx) {
379 		if (edx & 0x0FFF80000)
380 			eax = 0x7fff;
381 		else {
382 			edx <<= 0xd;
383 			eax = 7;
384 			while ((edx & 0x80000000) == 0) {
385 				edx <<= 1;
386 				eax--;
387 				if (eax == 0)
388 					break;
389 			}
390 			if (eax)
391 				edx <<= 1;
392 			eax <<= 0xc;
393 			edx >>= 0x14;
394 			eax |= edx;
395 		}
396 	} else
397 		eax = 0;
398 	voice->parm0 &= 0xffff0001;
399 	voice->parm0 |= (eax & 0x7fff) << 1;
400 	voice->parm1 = voice->parm0 | 1;
401 	// Wt: this_1D4
402 	//AuWt::WriteReg((ulong)(this_1DC<<4)+0x200, (ulong)this_1E4);
403 	//AuWt::WriteReg((ulong)(this_1DC<<4)+0x204, (ulong)this_1E8);
404 	hwwrite(vortex->mmio, WT_PARM(wt, 0), voice->parm0);
405 	hwwrite(vortex->mmio, WT_PARM(wt, 1), voice->parm1);
406 }
407 #endif
408 
409 /* End of File */
410