xref: /openbmc/linux/sound/pci/au88x0/au88x0_synth.c (revision eb3fcf00)
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 	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 
116 static 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
154 static 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. */
169 static int
170 vortex_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
193 static int
194 vortex_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 
297 static 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
337 static 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) */
370 static 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