emufx.c

linux 内核源代码

	ctl->max = 100;
	ctl->tlv = snd_emu10k1_db_scale1;
	ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100;
}

static void __devinit
snd_emu10k1_init_mono_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
				    const char *name, int gpr, int defval)
{
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	strcpy(ctl->id.name, name);
	ctl->vcount = ctl->count = 1;
	ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
	ctl->min = 0;
	ctl->max = 1;
	ctl->translation = EMU10K1_GPR_TRANSLATION_ONOFF;
}

static void __devinit
snd_emu10k1_init_stereo_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
				      const char *name, int gpr, int defval)
{
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	strcpy(ctl->id.name, name);
	ctl->vcount = ctl->count = 2;
	ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
	ctl->gpr[1] = gpr + 1; ctl->value[1] = defval;
	ctl->min = 0;
	ctl->max = 1;
	ctl->translation = EMU10K1_GPR_TRANSLATION_ONOFF;
}

/*
 * Used for emu1010 - conversion from 32-bit capture inputs from HANA
 * to 2 x 16-bit registers in audigy - their values are read via DMA.
 * Conversion is performed by Audigy DSP instructions of FX8010.
 */
static int snd_emu10k1_audigy_dsp_convert_32_to_2x16(
				struct snd_emu10k1_fx8010_code *icode,
				u32 *ptr, int tmp, int bit_shifter16,
				int reg_in, int reg_out)
{
	A_OP(icode, ptr, iACC3, A_GPR(tmp + 1), reg_in, A_C_00000000, A_C_00000000);
	A_OP(icode, ptr, iANDXOR, A_GPR(tmp), A_GPR(tmp + 1), A_GPR(bit_shifter16 - 1), A_C_00000000);
	A_OP(icode, ptr, iTSTNEG, A_GPR(tmp + 2), A_GPR(tmp), A_C_80000000, A_GPR(bit_shifter16 - 2));
	A_OP(icode, ptr, iANDXOR, A_GPR(tmp + 2), A_GPR(tmp + 2), A_C_80000000, A_C_00000000);
	A_OP(icode, ptr, iANDXOR, A_GPR(tmp), A_GPR(tmp), A_GPR(bit_shifter16 - 3), A_C_00000000);
	A_OP(icode, ptr, iMACINT0, A_GPR(tmp), A_C_00000000, A_GPR(tmp), A_C_00010000);
	A_OP(icode, ptr, iANDXOR, reg_out, A_GPR(tmp), A_C_ffffffff, A_GPR(tmp + 2));
	A_OP(icode, ptr, iACC3, reg_out + 1, A_GPR(tmp + 1), A_C_00000000, A_C_00000000);
	return 1;
}

/*
 * initial DSP configuration for Audigy
 */

static int __devinit _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
{
	int err, i, z, gpr, nctl;
	int bit_shifter16;
	const int playback = 10;
	const int capture = playback + (SND_EMU10K1_PLAYBACK_CHANNELS * 2); /* we reserve 10 voices */
	const int stereo_mix = capture + 2;
	const int tmp = 0x88;
	u32 ptr;
	struct snd_emu10k1_fx8010_code *icode = NULL;
	struct snd_emu10k1_fx8010_control_gpr *controls = NULL, *ctl;
	u32 *gpr_map;
	mm_segment_t seg;

	if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL ||
	    (icode->gpr_map = (u_int32_t __user *)
	     kcalloc(512 + 256 + 256 + 2 * 1024, sizeof(u_int32_t),
		     GFP_KERNEL)) == NULL ||
	    (controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
				sizeof(*controls), GFP_KERNEL)) == NULL) {
		err = -ENOMEM;
		goto __err;
	}
	gpr_map = (u32 __force *)icode->gpr_map;

	icode->tram_data_map = icode->gpr_map + 512;
	icode->tram_addr_map = icode->tram_data_map + 256;
	icode->code = icode->tram_addr_map + 256;

	/* clear free GPRs */
	for (i = 0; i < 512; i++)
		set_bit(i, icode->gpr_valid);
		
	/* clear TRAM data & address lines */
	for (i = 0; i < 256; i++)
		set_bit(i, icode->tram_valid);

	strcpy(icode->name, "Audigy DSP code for ALSA");
	ptr = 0;
	nctl = 0;
	gpr = stereo_mix + 10;
	gpr_map[gpr++] = 0x00007fff;
	gpr_map[gpr++] = 0x00008000;
	gpr_map[gpr++] = 0x0000ffff;
	bit_shifter16 = gpr;

	/* stop FX processor */
	snd_emu10k1_ptr_write(emu, A_DBG, 0, (emu->fx8010.dbg = 0) | A_DBG_SINGLE_STEP);

#if 1
	/* PCM front Playback Volume (independent from stereo mix)
	 * playback = 0 + ( gpr * FXBUS_PCM_LEFT_FRONT >> 31)
	 * where gpr contains attenuation from corresponding mixer control
	 * (snd_emu10k1_init_stereo_control)
	 */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_LEFT_FRONT));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+1), A_C_00000000, A_GPR(gpr+1), A_FXBUS(FXBUS_PCM_RIGHT_FRONT));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "PCM Front Playback Volume", gpr, 100);
	gpr += 2;

	/* PCM Surround Playback (independent from stereo mix) */
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+2), A_C_00000000, A_GPR(gpr), A_FXBUS(FXBUS_PCM_LEFT_REAR));
	A_OP(icode, &ptr, iMAC0, A_GPR(playback+3), A_C_00000000, A_GPR(gpr+1), A_FXBUS(FXBUS_PCM_RIGHT_REAR));
	snd_emu10k1_init_stereo_control(&controls[nctl++], "PCM Surround Playback Volume", gpr, 100);
	gpr += 2;
	
	/* PCM Side Playback (independent from stereo mix) */
	if (emu->card_capabilities->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;

	/* Synth 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++], "Synth 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;

	/* Synth 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++], "Synth 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))

	/* emu1212 DSP 0 and DSP 1 Capture */
	if (emu->card_capabilities->emu1010) {
		if (emu->card_capabilities->ca0108_chip) {
			/* Note:JCD:No longer bit shift lower 16bits to upper 16bits of 32bit value. */
			A_OP(icode, &ptr, iMACINT0, A_GPR(tmp), A_C_00000000, A3_EMU32IN(0x0), A_C_00000001);
			A_OP(icode, &ptr, iMAC0, A_GPR(capture+0), A_GPR(capture+0), A_GPR(gpr), A_GPR(tmp));
			A_OP(icode, &ptr, iMACINT0, A_GPR(tmp), A_C_00000000, A3_EMU32IN(0x1), A_C_00000001);
			A_OP(icode, &ptr, iMAC0, A_GPR(capture+1), A_GPR(capture+1), A_GPR(gpr), A_GPR(tmp));
		} else {
			A_OP(icode, &ptr, iMAC0, A_GPR(capture+0), A_GPR(capture+0), A_GPR(gpr), A_P16VIN(0x0));
			A_OP(icode, &ptr, iMAC0, A_GPR(capture+1), A_GPR(capture+1), A_GPR(gpr+1), A_P16VIN(0x1));
		}
		snd_emu10k1_init_stereo_control(&controls[nctl++], "EMU Capture Volume", gpr, 0);
		gpr += 2;
	}
	/* 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->card_capabilities->ac97_chip ? "Audigy CD Playback Volume" : "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->card_capabilities->ac97_chip ? "Audigy CD Capture Volume" : "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++], SNDRV_CTL_NAME_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++], SNDRV_CTL_NAME_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->card_capabilities->ac97_chip ? "Line2 Playback Volume" : "Line 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->card_capabilities->ac97_chip ? "Line2 Capture Volume" : "Line 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->card_capabilities->ac97_chip ? "Aux2 Playback Volume" : "Aux 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->card_capabilities->ac97_chip ? "Aux2 Capture Volume" : "Aux 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->card_capabilities->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->card_capabilities->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;
		}
	}