emufx.c

鼎力推荐！本程序是基于嵌入式LUNUX系统开发的源程序代码

	gpr += 2;
	
	/* PCM Side Playback (independent from stereo mix) */
	if (emu->spk71) {
		A_OP(icode, &ptr, iMAC0, A_GPR(playback+6), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_LEFT_SIDE));
		A_OP(icode, &ptr, iMAC0, A_GPR(playback+7), A_C_00000000, A_GPR(gpr+1), A_FXBUS(FXBUS_PCM_RIGHT_SIDE));
		snd_emu10k1_init_stereo_control(&controls[nctl++], "PCM Side Playback Volume", gpr, 100);
		gpr += 2;
	}

	/* PCM Center Playback (independent from stereo mix) */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+4), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_CENTER));
	snd_emu10k1_init_mono_control(&controls[nctl++], "PCM Center Playback Volume", gpr, 100);
	gpr++;

	/* PCM LFE Playback (independent from stereo mix) */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+5), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_LFE));
	snd_emu10k1_init_mono_control(&controls[nctl++], "PCM LFE Playback Volume", gpr, 100);
	gpr++;
	
	/*
	 * Stereo Mix
	 */
	/* Wave (PCM) Playback Volume (will be renamed later) */
	A_OP(icode, &ptr, iMAC0, A_GPR(stereo_mix), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_LEFT));
	A_OP(icode, &ptr, iMAC0, A_GPR(stereo_mix+1), A_C_00000000, A_GPR(gpr+1), A_FXBUS(FXBUS_PCM_RIGHT));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Wave Playback Volume", gpr, 100);
	gpr += 2;

	/* Music Playback */
	A_OP(icode, &ptr, iMAC0, A_GPR(stereo_mix+0), A_GPR(stereo_mix+0), A_GPR(gpr), A_FXBUS(FXBUS_MIDI_LEFT));
	A_OP(icode, &ptr, iMAC0, A_GPR(stereo_mix+1), A_GPR(stereo_mix+1), A_GPR(gpr+1), A_FXBUS(FXBUS_MIDI_RIGHT));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Music Playback Volume", gpr, 100);
	gpr += 2;

	/* Wave (PCM) Capture */
	A_OP(icode, &ptr, iMAC0, A_GPR(capture+0), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_LEFT));
	A_OP(icode, &ptr, iMAC0, A_GPR(capture+1), A_C_00000000, A_GPR(gpr+1), A_FXBUS(FXBUS_PCM_RIGHT));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "PCM Capture Volume", gpr, 0);
	gpr += 2;

	/* Music Capture */
	A_OP(icode, &ptr, iMAC0, A_GPR(capture+0), A_GPR(capture+0), A_GPR(gpr), A_FXBUS(FXBUS_MIDI_LEFT));
	A_OP(icode, &ptr, iMAC0, A_GPR(capture+1), A_GPR(capture+1), A_GPR(gpr+1), A_FXBUS(FXBUS_MIDI_RIGHT));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Music Capture Volume", gpr, 0);
	gpr += 2;

	/*
	 * inputs
	 */
#define A_ADD_VOLUME_IN(var,vol,input) \
A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))

	/* AC'97 Playback Volume - used only for mic (renamed later) */
	A_ADD_VOLUME_IN(stereo_mix, gpr, A_EXTIN_AC97_L);
	A_ADD_VOLUME_IN(stereo_mix+1, gpr+1, A_EXTIN_AC97_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++], "AMic Playback Volume", gpr, 0);
	gpr += 2;
	/* AC'97 Capture Volume - used only for mic */
	A_ADD_VOLUME_IN(capture, gpr, A_EXTIN_AC97_L);
	A_ADD_VOLUME_IN(capture+1, gpr+1, A_EXTIN_AC97_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Mic Capture Volume", gpr, 0);
	gpr += 2;

	/* mic capture buffer */	
	A_OP(icode, &ptr, iINTERP, A_EXTOUT(A_EXTOUT_MIC_CAP), A_EXTIN(A_EXTIN_AC97_L), 0xcd, A_EXTIN(A_EXTIN_AC97_R));

	/* Audigy CD Playback Volume */
	A_ADD_VOLUME_IN(stereo_mix, gpr, A_EXTIN_SPDIF_CD_L);
	A_ADD_VOLUME_IN(stereo_mix+1, gpr+1, A_EXTIN_SPDIF_CD_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++],
					emu->no_ac97 ? "CD Playback Volume" : "Audigy CD Playback Volume",
					gpr, 0);
	gpr += 2;
	/* Audigy CD Capture Volume */
	A_ADD_VOLUME_IN(capture, gpr, A_EXTIN_SPDIF_CD_L);
	A_ADD_VOLUME_IN(capture+1, gpr+1, A_EXTIN_SPDIF_CD_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++],
					emu->no_ac97 ? "CD Capture Volume" : "Audigy CD Capture Volume",
					gpr, 0);
	gpr += 2;

 	/* Optical SPDIF Playback Volume */
	A_ADD_VOLUME_IN(stereo_mix, gpr, A_EXTIN_OPT_SPDIF_L);
	A_ADD_VOLUME_IN(stereo_mix+1, gpr+1, A_EXTIN_OPT_SPDIF_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++], "IEC958 Optical Playback Volume", gpr, 0);
	gpr += 2;
	/* Optical SPDIF Capture Volume */
	A_ADD_VOLUME_IN(capture, gpr, A_EXTIN_OPT_SPDIF_L);
	A_ADD_VOLUME_IN(capture+1, gpr+1, A_EXTIN_OPT_SPDIF_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++], "IEC958 Optical Capture Volume", gpr, 0);
	gpr += 2;

	/* Line2 Playback Volume */
	A_ADD_VOLUME_IN(stereo_mix, gpr, A_EXTIN_LINE2_L);
	A_ADD_VOLUME_IN(stereo_mix+1, gpr+1, A_EXTIN_LINE2_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++],
					emu->no_ac97 ? "Line Playback Volume" : "Line2 Playback Volume",
					gpr, 0);
	gpr += 2;
	/* Line2 Capture Volume */
	A_ADD_VOLUME_IN(capture, gpr, A_EXTIN_LINE2_L);
	A_ADD_VOLUME_IN(capture+1, gpr+1, A_EXTIN_LINE2_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++],
					emu->no_ac97 ? "Line Capture Volume" : "Line2 Capture Volume",
					gpr, 0);
	gpr += 2;
        
	/* Philips ADC Playback Volume */
	A_ADD_VOLUME_IN(stereo_mix, gpr, A_EXTIN_ADC_L);
	A_ADD_VOLUME_IN(stereo_mix+1, gpr+1, A_EXTIN_ADC_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Analog Mix Playback Volume", gpr, 0);
	gpr += 2;
	/* Philips ADC Capture Volume */
	A_ADD_VOLUME_IN(capture, gpr, A_EXTIN_ADC_L);
	A_ADD_VOLUME_IN(capture+1, gpr+1, A_EXTIN_ADC_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Analog Mix Capture Volume", gpr, 0);
	gpr += 2;

	/* Aux2 Playback Volume */
	A_ADD_VOLUME_IN(stereo_mix, gpr, A_EXTIN_AUX2_L);
	A_ADD_VOLUME_IN(stereo_mix+1, gpr+1, A_EXTIN_AUX2_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++],
					emu->no_ac97 ? "Aux Playback Volume" : "Aux2 Playback Volume",
					gpr, 0);
	gpr += 2;
	/* Aux2 Capture Volume */
	A_ADD_VOLUME_IN(capture, gpr, A_EXTIN_AUX2_L);
	A_ADD_VOLUME_IN(capture+1, gpr+1, A_EXTIN_AUX2_R);
	snd_emu10k1_init_stereo_control(&controls[nctl++],
					emu->no_ac97 ? "Aux Capture Volume" : "Aux2 Capture Volume",
					gpr, 0);
	gpr += 2;
	
	/* Stereo Mix Front Playback Volume */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback), A_GPR(playback), A_GPR(gpr), A_GPR(stereo_mix));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+1), A_GPR(playback+1), A_GPR(gpr+1), A_GPR(stereo_mix+1));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Front Playback Volume", gpr, 100);
	gpr += 2;
	
	/* Stereo Mix Surround Playback */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+2), A_GPR(playback+2), A_GPR(gpr), A_GPR(stereo_mix));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+3), A_GPR(playback+3), A_GPR(gpr+1), A_GPR(stereo_mix+1));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "Surround Playback Volume", gpr, 0);
	gpr += 2;

	/* Stereo Mix Center Playback */
	/* Center = sub = Left/2 + Right/2 */
	A_OP(icode, &ptr, iINTERP, A_GPR(tmp), A_GPR(stereo_mix), 0xcd, A_GPR(stereo_mix+1));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+4), A_GPR(playback+4), A_GPR(gpr), A_GPR(tmp));
	snd_emu10k1_init_mono_control(&controls[nctl++], "Center Playback Volume", gpr, 0);
	gpr++;

	/* Stereo Mix LFE Playback */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+5), A_GPR(playback+5), A_GPR(gpr), A_GPR(tmp));
	snd_emu10k1_init_mono_control(&controls[nctl++], "LFE Playback Volume", gpr, 0);
	gpr++;
	
	if (emu->spk71) {
		/* Stereo Mix Side Playback */
		A_OP(icode, &ptr, iMAC0, A_GPR(playback+6), A_GPR(playback+6), A_GPR(gpr), A_GPR(stereo_mix));
		A_OP(icode, &ptr, iMAC0, A_GPR(playback+7), A_GPR(playback+7), A_GPR(gpr+1), A_GPR(stereo_mix+1));
		snd_emu10k1_init_stereo_control(&controls[nctl++], "Side Playback Volume", gpr, 0);
		gpr += 2;
	}

	/*
	 * outputs
	 */
#define A_PUT_OUTPUT(out,src) A_OP(icode, &ptr, iACC3, A_EXTOUT(out), A_C_00000000, A_C_00000000, A_GPR(src))
#define A_PUT_STEREO_OUTPUT(out1,out2,src) \
	{A_PUT_OUTPUT(out1,src); A_PUT_OUTPUT(out2,src+1);}

#define _A_SWITCH(icode, ptr, dst, src, sw) \
	A_OP((icode), ptr, iMACINT0, dst, A_C_00000000, src, sw);
#define A_SWITCH(icode, ptr, dst, src, sw) \
		_A_SWITCH(icode, ptr, A_GPR(dst), A_GPR(src), A_GPR(sw))
#define _A_SWITCH_NEG(icode, ptr, dst, src) \
	A_OP((icode), ptr, iANDXOR, dst, src, A_C_00000001, A_C_00000001);
#define A_SWITCH_NEG(icode, ptr, dst, src) \
		_A_SWITCH_NEG(icode, ptr, A_GPR(dst), A_GPR(src))


	/*
	 *  Process tone control
	 */
	A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 0), A_GPR(playback + 0), A_C_00000000, A_C_00000000); /* left */
	A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 1), A_GPR(playback + 1), A_C_00000000, A_C_00000000); /* right */
	A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 2), A_GPR(playback + 2), A_C_00000000, A_C_00000000); /* rear left */
	A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 3), A_GPR(playback + 3), A_C_00000000, A_C_00000000); /* rear right */
	A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 4), A_GPR(playback + 4), A_C_00000000, A_C_00000000); /* center */
	A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 5), A_GPR(playback + 5), A_C_00000000, A_C_00000000); /* LFE */
	if (emu->spk71) {
		A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 6), A_GPR(playback + 6), A_C_00000000, A_C_00000000); /* side left */
		A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + 7), A_GPR(playback + 7), A_C_00000000, A_C_00000000); /* side right */
	}
	

	ctl = &controls[nctl + 0];
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	strcpy(ctl->id.name, "Tone Control - Bass");
	ctl->vcount = 2;
	ctl->count = 10;
	ctl->min = 0;
	ctl->max = 40;
	ctl->value[0] = ctl->value[1] = 20;
	ctl->translation = EMU10K1_GPR_TRANSLATION_BASS;
	ctl = &controls[nctl + 1];
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	strcpy(ctl->id.name, "Tone Control - Treble");
	ctl->vcount = 2;
	ctl->count = 10;
	ctl->min = 0;
	ctl->max = 40;
	ctl->value[0] = ctl->value[1] = 20;
	ctl->translation = EMU10K1_GPR_TRANSLATION_TREBLE;

#define BASS_GPR	0x8c
#define TREBLE_GPR	0x96

	for (z = 0; z < 5; z++) {
		int j;
		for (j = 0; j < 2; j++) {
			controls[nctl + 0].gpr[z * 2 + j] = BASS_GPR + z * 2 + j;
			controls[nctl + 1].gpr[z * 2 + j] = TREBLE_GPR + z * 2 + j;
		}
	}
	for (z = 0; z < 4; z++) {		/* front/rear/center-lfe/side */
		int j, k, l, d;
		for (j = 0; j < 2; j++) {	/* left/right */
			k = 0xb0 + (z * 8) + (j * 4);
			l = 0xe0 + (z * 8) + (j * 4);
			d = playback + SND_EMU10K1_PLAYBACK_CHANNELS + z * 2 + j;

			A_OP(icode, &ptr, iMAC0, A_C_00000000, A_C_00000000, A_GPR(d), A_GPR(BASS_GPR + 0 + j));
			A_OP(icode, &ptr, iMACMV, A_GPR(k+1), A_GPR(k), A_GPR(k+1), A_GPR(BASS_GPR + 4 + j));
			A_OP(icode, &ptr, iMACMV, A_GPR(k), A_GPR(d), A_GPR(k), A_GPR(BASS_GPR + 2 + j));
			A_OP(icode, &ptr, iMACMV, A_GPR(k+3), A_GPR(k+2), A_GPR(k+3), A_GPR(BASS_GPR + 8 + j));
			A_OP(icode, &ptr, iMAC0, A_GPR(k+2), A_GPR_ACCU, A_GPR(k+2), A_GPR(BASS_GPR + 6 + j));
			A_OP(icode, &ptr, iACC3, A_GPR(k+2), A_GPR(k+2), A_GPR(k+2), A_C_00000000);

			A_OP(icode, &ptr, iMAC0, A_C_00000000, A_C_00000000, A_GPR(k+2), A_GPR(TREBLE_GPR + 0 + j));
			A_OP(icode, &ptr, iMACMV, A_GPR(l+1), A_GPR(l), A_GPR(l+1), A_GPR(TREBLE_GPR + 4 + j));
			A_OP(icode, &ptr, iMACMV, A_GPR(l), A_GPR(k+2), A_GPR(l), A_GPR(TREBLE_GPR + 2 + j));
			A_OP(icode, &ptr, iMACMV, A_GPR(l+3), A_GPR(l+2), A_GPR(l+3), A_GPR(TREBLE_GPR + 8 + j));
			A_OP(icode, &ptr, iMAC0, A_GPR(l+2), A_GPR_ACCU, A_GPR(l+2), A_GPR(TREBLE_GPR + 6 + j));
			A_OP(icode, &ptr, iMACINT0, A_GPR(l+2), A_C_00000000, A_GPR(l+2), A_C_00000010);

			A_OP(icode, &ptr, iACC3, A_GPR(d), A_GPR(l+2), A_C_00000000, A_C_00000000);

			if (z == 2)	/* center */
				break;
		}
	}
	nctl += 2;

#undef BASS_GPR
#undef TREBLE_GPR

	for (z = 0; z < 8; z++) {
		A_SWITCH(icode, &ptr, tmp + 0, playback + SND_EMU10K1_PLAYBACK_CHANNELS + z, gpr + 0);
		A_SWITCH_NEG(icode, &ptr, tmp + 1, gpr + 0);
		A_SWITCH(icode, &ptr, tmp + 1, playback + z, tmp + 1);
		A_OP(icode, &ptr, iACC3, A_GPR(playback + SND_EMU10K1_PLAYBACK_CHANNELS + z), A_GPR(tmp + 0), A_GPR(tmp + 1), A_C_00000000);
	}
	snd_emu10k1_init_stereo_onoff_control(controls + nctl++, "Tone Control - Switch", gpr, 0);
	gpr += 2;

	/* Master volume (will be renamed later) */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS));
	snd_emu10k1_init_mono_control(&controls[nctl++], "Wave Master Playback Volume", gpr, 0);
	gpr += 2;

	/* analog speakers */
	A_PUT_STEREO_OUTPUT(A_EXTOUT_AFRONT_L, A_EXTOUT_AFRONT_R, playback + SND_EMU10K1_PLAYBACK_CHANNELS);
	A_PUT_STEREO_OUTPUT(A_EXTOUT_AREAR_L, A_EXTOUT_AREAR_R, playback+2 + SND_EMU10K1_PLAYBACK_CHANNELS);
	A_PUT_OUTPUT(A_EXTOUT_ACENTER, playback+4 + SND_EMU10K1_PLAYBACK_CHANNELS);
	A_PUT_OUTPUT(A_EXTOUT_ALFE, playback+5 + SND_EMU10K1_PLAYBACK_CHANNELS);
	if (emu->spk71)
		A_PUT_STEREO_OUTPUT(A_EXTOUT_ASIDE_L, A_EXTOUT_ASIDE_R, playback+6 + SND_EMU10K1_PLAYBACK_CHANNELS);

	/* headphone */
	A_PUT_STEREO_OUTPUT(A_EXTOUT_HEADPHONE_L, A_EXTOUT_HEADPHONE_R, playback + SND_EMU10K1_PLAYBACK_CHANNELS);

	/* digital outputs */
	/* A_PUT_STEREO_OUTPUT(A_EXTOUT_FRONT_L, A_EXTOUT_FRONT_R, playback + SND_EMU10K1_PLAYBACK_CHANNELS); */

	/* IEC958 Optical Raw Playback Switch */ 
	icode->gpr_map[gpr++] = 0x1008;
	icode->gpr_map[gpr++] = 0xffff0000;
	for (z = 0; z < 2; z++) {
		A_OP(icode, &ptr, iMAC0, A_GPR(tmp + 2), A_FXBUS(FXBUS_PT_LEFT + z), A_C_00000000, A_C_00000000);
		A_OP(icode, &ptr, iSKIP, A_GPR_COND, A_GPR_COND, A_GPR(gpr - 2), A_C_00000001);
		A_OP(icode, &ptr, iACC3, A_GPR(tmp + 2), A_C_00000000, A_C_00010000, A_GPR(tmp + 2));
		A_OP(icode, &ptr, iANDXOR, A_GPR(tmp + 2), A_GPR(tmp + 2), A_GPR(gpr - 1), A_C_00000000);
		A_SWITCH(icode, &ptr, tmp + 0, tmp + 2, gpr + z);
		A_SWITCH_NEG(icode, &ptr, tmp + 1, gpr + z);
		A_SWITCH(icode, &ptr, tmp + 1, playback + SND_EMU10K1_PLAYBACK_CHANNELS + z, tmp + 1);
		A_OP(icode, &ptr, iACC3, A_EXTOUT(A_EXTOUT_FRONT_L + z), A_GPR(tmp + 0), A_GPR(tmp + 1), A_C_00000000);
	}
	snd_emu10k1_init_stereo_onoff_control(controls + nctl++, "IEC958 Optical Raw Playback Switch", gpr, 0);
	gpr += 2;
	
	A_PUT_STEREO_OUTPUT(A_EXTOUT_REAR_L, A_EXTOUT_REAR_R, playback+2 + SND_EMU10K1_PLAYBACK_CHANNELS);
	A_PUT_OUTPUT(A_EXTOUT_CENTER, playback+4 + SND_EMU10K1_PLAYBACK_CHANNELS);
	A_PUT_OUTPUT(A_EXTOUT_LFE, playback+5 + SND_EMU10K1_PLAYBACK_CHANNELS);

	/* ADC buffer */
#ifdef EMU10K1_CAPTURE_DIGITAL_OUT
	A_PUT_STEREO_OUTPUT(A_EXTOUT_ADC_CAP_L, A_EXTOUT_ADC_CAP_R, playback + SND_EMU10K1_PLAYBACK_CHANNELS);
#else
	A_PUT_OUTPUT(A_EXTOUT_ADC_CAP_L, capture);
	A_PUT_OUTPUT(A_EXTOUT_ADC_CAP_R, capture+1);
#endif

	/*
	 * ok, set up done..
	 */

	if (gpr > tmp) {
		snd_BUG();
		err = -EIO;
		goto __err;
	}
	/* clear remaining instruction memory */
	while (ptr < 0x400)
		A_OP(icode, &ptr, 0x0f, 0xc0, 0xc0, 0xcf, 0xc0);

	seg = snd_enter_user();
	icode->gpr_add_control_count = nctl;
	icode->gpr_add_controls = controls;
	err = snd_emu10k1_icode_poke(emu, icode);
	snd_leave_user(seg);

 __err:
 	if (controls != NULL)
		kfree(controls);
	if (icode != NULL) {
		if (icode->gpr_map != NULL)