[deliverable/linux.git] / sound / synth / emux / emux_effect.c

/*
 *  Midi synth routines for the Emu8k/Emu10k1
 *
 *  Copyright (C) 1999 Steve Ratcliffe
 *  Copyright (c) 1999-2000 Takashi Iwai <tiwai@suse.de>
 *
 *  Contains code based on awe_wave.c by Takashi Iwai
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include "emux_voice.h"
#include <linux/slab.h>

#ifdef SNDRV_EMUX_USE_RAW_EFFECT
/*
 * effects table
 */

#define xoffsetof(type,tag)	((long)(&((type)NULL)->tag) - (long)(NULL))

#define parm_offset(tag)	xoffsetof(struct soundfont_voice_parm *, tag)

#define PARM_IS_BYTE		(1 << 0)
#define PARM_IS_WORD		(1 << 1)
#define PARM_IS_ALIGNED		(3 << 2)
#define PARM_IS_ALIGN_HI	(1 << 2)
#define PARM_IS_ALIGN_LO	(2 << 2)
#define PARM_IS_SIGNED		(1 << 4)

#define PARM_WORD	(PARM_IS_WORD)
#define PARM_BYTE_LO	(PARM_IS_BYTE|PARM_IS_ALIGN_LO)
#define PARM_BYTE_HI	(PARM_IS_BYTE|PARM_IS_ALIGN_HI)
#define PARM_BYTE	(PARM_IS_BYTE)
#define PARM_SIGN_LO	(PARM_IS_BYTE|PARM_IS_ALIGN_LO|PARM_IS_SIGNED)
#define PARM_SIGN_HI	(PARM_IS_BYTE|PARM_IS_ALIGN_HI|PARM_IS_SIGNED)

static struct emux_parm_defs {
	int type;	/* byte or word */
	int low, high;	/* value range */
	long offset;	/* offset in parameter record (-1 = not written) */
	int update;	/* flgas for real-time update */
} parm_defs[EMUX_NUM_EFFECTS] = {
	{PARM_WORD, 0, 0x8000, parm_offset(moddelay), 0},	/* env1 delay */
	{PARM_BYTE_LO, 1, 0x80, parm_offset(modatkhld), 0},	/* env1 attack */
	{PARM_BYTE_HI, 0, 0x7e, parm_offset(modatkhld), 0},	/* env1 hold */
	{PARM_BYTE_LO, 1, 0x7f, parm_offset(moddcysus), 0},	/* env1 decay */
	{PARM_BYTE_LO, 1, 0x7f, parm_offset(modrelease), 0},	/* env1 release */
	{PARM_BYTE_HI, 0, 0x7f, parm_offset(moddcysus), 0},	/* env1 sustain */
	{PARM_BYTE_HI, 0, 0xff, parm_offset(pefe), 0},	/* env1 pitch */
	{PARM_BYTE_LO, 0, 0xff, parm_offset(pefe), 0},	/* env1 fc */

	{PARM_WORD, 0, 0x8000, parm_offset(voldelay), 0},	/* env2 delay */
	{PARM_BYTE_LO, 1, 0x80, parm_offset(volatkhld), 0},	/* env2 attack */
	{PARM_BYTE_HI, 0, 0x7e, parm_offset(volatkhld), 0},	/* env2 hold */
	{PARM_BYTE_LO, 1, 0x7f, parm_offset(voldcysus), 0},	/* env2 decay */
	{PARM_BYTE_LO, 1, 0x7f, parm_offset(volrelease), 0},	/* env2 release */
	{PARM_BYTE_HI, 0, 0x7f, parm_offset(voldcysus), 0},	/* env2 sustain */

	{PARM_WORD, 0, 0x8000, parm_offset(lfo1delay), 0},	/* lfo1 delay */
	{PARM_BYTE_LO, 0, 0xff, parm_offset(tremfrq), SNDRV_EMUX_UPDATE_TREMFREQ},	/* lfo1 freq */
	{PARM_SIGN_HI, -128, 127, parm_offset(tremfrq), SNDRV_EMUX_UPDATE_TREMFREQ},	/* lfo1 vol */
	{PARM_SIGN_HI, -128, 127, parm_offset(fmmod), SNDRV_EMUX_UPDATE_FMMOD},	/* lfo1 pitch */
	{PARM_BYTE_LO, 0, 0xff, parm_offset(fmmod), SNDRV_EMUX_UPDATE_FMMOD},	/* lfo1 cutoff */

	{PARM_WORD, 0, 0x8000, parm_offset(lfo2delay), 0},	/* lfo2 delay */
	{PARM_BYTE_LO, 0, 0xff, parm_offset(fm2frq2), SNDRV_EMUX_UPDATE_FM2FRQ2},	/* lfo2 freq */
	{PARM_SIGN_HI, -128, 127, parm_offset(fm2frq2), SNDRV_EMUX_UPDATE_FM2FRQ2},	/* lfo2 pitch */

	{PARM_WORD, 0, 0xffff, -1, SNDRV_EMUX_UPDATE_PITCH},	/* initial pitch */
	{PARM_BYTE, 0, 0xff, parm_offset(chorus), 0},	/* chorus */
	{PARM_BYTE, 0, 0xff, parm_offset(reverb), 0},	/* reverb */
	{PARM_BYTE, 0, 0xff, parm_offset(cutoff), SNDRV_EMUX_UPDATE_VOLUME},	/* cutoff */
	{PARM_BYTE, 0, 15, parm_offset(filterQ), SNDRV_EMUX_UPDATE_Q},	/* resonance */

	{PARM_WORD, 0, 0xffff, -1, 0},	/* sample start */
	{PARM_WORD, 0, 0xffff, -1, 0},	/* loop start */
	{PARM_WORD, 0, 0xffff, -1, 0},	/* loop end */
	{PARM_WORD, 0, 0xffff, -1, 0},	/* coarse sample start */
	{PARM_WORD, 0, 0xffff, -1, 0},	/* coarse loop start */
	{PARM_WORD, 0, 0xffff, -1, 0},	/* coarse loop end */
	{PARM_BYTE, 0, 0xff, -1, SNDRV_EMUX_UPDATE_VOLUME},	/* initial attenuation */
};

/* set byte effect value */
static void
effect_set_byte(unsigned char *valp, struct snd_midi_channel *chan, int type)
{
	short effect;
	struct snd_emux_effect_table *fx = chan->private;

	effect = fx->val[type];
	if (fx->flag[type] == EMUX_FX_FLAG_ADD) {
		if (parm_defs[type].type & PARM_IS_SIGNED)
			effect += *(char*)valp;
		else
			effect += *valp;
	}
	if (effect < parm_defs[type].low)
		effect = parm_defs[type].low;
	else if (effect > parm_defs[type].high)
		effect = parm_defs[type].high;
	*valp = (unsigned char)effect;
}

/* set word effect value */
static void
effect_set_word(unsigned short *valp, struct snd_midi_channel *chan, int type)
{
	int effect;
	struct snd_emux_effect_table *fx = chan->private;

	effect = *(unsigned short*)&fx->val[type];
	if (fx->flag[type] == EMUX_FX_FLAG_ADD)
		effect += *valp;
	if (effect < parm_defs[type].low)
		effect = parm_defs[type].low;
	else if (effect > parm_defs[type].high)
		effect = parm_defs[type].high;
	*valp = (unsigned short)effect;
}

/* address offset */
static int
effect_get_offset(struct snd_midi_channel *chan, int lo, int hi, int mode)
{
	int addr = 0;
	struct snd_emux_effect_table *fx = chan->private;

	if (fx->flag[hi])
		addr = (short)fx->val[hi];
	addr = addr << 15;
	if (fx->flag[lo])
		addr += (short)fx->val[lo];
	if (!(mode & SNDRV_SFNT_SAMPLE_8BITS))
		addr /= 2;
	return addr;
}

#ifdef CONFIG_SND_SEQUENCER_OSS
/* change effects - for OSS sequencer compatibility */
void
snd_emux_send_effect_oss(struct snd_emux_port *port,
			 struct snd_midi_channel *chan, int type, int val)
{
	int mode;

	if (type & 0x40)
		mode = EMUX_FX_FLAG_OFF;
	else if (type & 0x80)
		mode = EMUX_FX_FLAG_ADD;
	else
		mode = EMUX_FX_FLAG_SET;
	type &= 0x3f;

	snd_emux_send_effect(port, chan, type, val, mode);
}
#endif

/* Modify the effect value.
 * if update is necessary, call emu8000_control
 */
void
snd_emux_send_effect(struct snd_emux_port *port, struct snd_midi_channel *chan,
		     int type, int val, int mode)
{
	int i;
	int offset;
	unsigned char *srcp, *origp;
	struct snd_emux *emu;
	struct snd_emux_effect_table *fx;
	unsigned long flags;

	emu = port->emu;
	fx = chan->private;
	if (emu == NULL || fx == NULL)
		return;
	if (type < 0 || type >= EMUX_NUM_EFFECTS)
		return;

	fx->val[type] = val;
	fx->flag[type] = mode;

	/* do we need to modify the register in realtime ? */
	if (! parm_defs[type].update || (offset = parm_defs[type].offset) < 0)
		return;

#ifdef SNDRV_LITTLE_ENDIAN
	if (parm_defs[type].type & PARM_IS_ALIGN_HI)
		offset++;
#else
	if (parm_defs[type].type & PARM_IS_ALIGN_LO)
		offset++;
#endif
	/* modify the register values */
	spin_lock_irqsave(&emu->voice_lock, flags);
	for (i = 0; i < emu->max_voices; i++) {
		struct snd_emux_voice *vp = &emu->voices[i];
		if (!STATE_IS_PLAYING(vp->state) || vp->chan != chan)
			continue;
		srcp = (unsigned char*)&vp->reg.parm + offset;
		origp = (unsigned char*)&vp->zone->v.parm + offset;
		if (parm_defs[i].type & PARM_IS_BYTE) {
			*srcp = *origp;
			effect_set_byte(srcp, chan, type);
		} else {
			*(unsigned short*)srcp = *(unsigned short*)origp;
			effect_set_word((unsigned short*)srcp, chan, type);
		}
	}
	spin_unlock_irqrestore(&emu->voice_lock, flags);

	/* activate them */
	snd_emux_update_channel(port, chan, parm_defs[type].update);
}


/* copy wavetable registers to voice table */
void
snd_emux_setup_effect(struct snd_emux_voice *vp)
{
	struct snd_midi_channel *chan = vp->chan;
	struct snd_emux_effect_table *fx;
	unsigned char *srcp;
	int i;

	if (! (fx = chan->private))
		return;

	/* modify the register values via effect table */
	for (i = 0; i < EMUX_FX_END; i++) {
		int offset;
		if (! fx->flag[i] || (offset = parm_defs[i].offset) < 0)
			continue;
#ifdef SNDRV_LITTLE_ENDIAN
		if (parm_defs[i].type & PARM_IS_ALIGN_HI)
			offset++;
#else
		if (parm_defs[i].type & PARM_IS_ALIGN_LO)
			offset++;
#endif
		srcp = (unsigned char*)&vp->reg.parm + offset;
		if (parm_defs[i].type & PARM_IS_BYTE)
			effect_set_byte(srcp, chan, i);
		else
			effect_set_word((unsigned short*)srcp, chan, i);
	}

	/* correct sample and loop points */
	vp->reg.start += effect_get_offset(chan, EMUX_FX_SAMPLE_START,
					   EMUX_FX_COARSE_SAMPLE_START,
					   vp->reg.sample_mode);

	vp->reg.loopstart += effect_get_offset(chan, EMUX_FX_LOOP_START,
					       EMUX_FX_COARSE_LOOP_START,
					       vp->reg.sample_mode);

	vp->reg.loopend += effect_get_offset(chan, EMUX_FX_LOOP_END,
					     EMUX_FX_COARSE_LOOP_END,
					     vp->reg.sample_mode);
}

/*
 * effect table
 */
void
snd_emux_create_effect(struct snd_emux_port *p)
{
	int i;
	p->effect = kcalloc(p->chset.max_channels,
			    sizeof(struct snd_emux_effect_table), GFP_KERNEL);
	if (p->effect) {
		for (i = 0; i < p->chset.max_channels; i++)
			p->chset.channels[i].private = p->effect + i;
	} else {
		for (i = 0; i < p->chset.max_channels; i++)
			p->chset.channels[i].private = NULL;
	}
}

void
snd_emux_delete_effect(struct snd_emux_port *p)
{
	kfree(p->effect);
	p->effect = NULL;
}

void
snd_emux_clear_effect(struct snd_emux_port *p)
{
	if (p->effect) {
		memset(p->effect, 0, sizeof(struct snd_emux_effect_table) *
		       p->chset.max_channels);
	}
}

#endif /* SNDRV_EMUX_USE_RAW_EFFECT */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Midi synth routines for the Emu8k/Emu10k1
	3	*
	4	* Copyright (C) 1999 Steve Ratcliffe
	5	* Copyright (c) 1999-2000 Takashi Iwai <tiwai@suse.de>
	6	*
	7	* Contains code based on awe_wave.c by Takashi Iwai
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	*/
	24
	25	#include "emux_voice.h"
	26	#include <linux/slab.h>
	27
	28	#ifdef SNDRV_EMUX_USE_RAW_EFFECT
	29	/*
	30	* effects table
	31	*/
	32
	33	#define xoffsetof(type,tag) ((long)(&((type)NULL)->tag) - (long)(NULL))
	34
03da312a	35	#define parm_offset(tag) xoffsetof(struct soundfont_voice_parm *, tag)
1da177e4 LT	36
	37	#define PARM_IS_BYTE (1 << 0)
	38	#define PARM_IS_WORD (1 << 1)
	39	#define PARM_IS_ALIGNED (3 << 2)
	40	#define PARM_IS_ALIGN_HI (1 << 2)
	41	#define PARM_IS_ALIGN_LO (2 << 2)
	42	#define PARM_IS_SIGNED (1 << 4)
	43
	44	#define PARM_WORD (PARM_IS_WORD)
	45	#define PARM_BYTE_LO (PARM_IS_BYTE\|PARM_IS_ALIGN_LO)
	46	#define PARM_BYTE_HI (PARM_IS_BYTE\|PARM_IS_ALIGN_HI)
	47	#define PARM_BYTE (PARM_IS_BYTE)
	48	#define PARM_SIGN_LO (PARM_IS_BYTE\|PARM_IS_ALIGN_LO\|PARM_IS_SIGNED)
	49	#define PARM_SIGN_HI (PARM_IS_BYTE\|PARM_IS_ALIGN_HI\|PARM_IS_SIGNED)
	50
	51	static struct emux_parm_defs {
	52	int type; /* byte or word */
	53	int low, high; /* value range */
	54	long offset; /* offset in parameter record (-1 = not written) */
	55	int update; /* flgas for real-time update */
	56	} parm_defs[EMUX_NUM_EFFECTS] = {
	57	{PARM_WORD, 0, 0x8000, parm_offset(moddelay), 0}, /* env1 delay */
	58	{PARM_BYTE_LO, 1, 0x80, parm_offset(modatkhld), 0}, /* env1 attack */
	59	{PARM_BYTE_HI, 0, 0x7e, parm_offset(modatkhld), 0}, /* env1 hold */
	60	{PARM_BYTE_LO, 1, 0x7f, parm_offset(moddcysus), 0}, /* env1 decay */
	61	{PARM_BYTE_LO, 1, 0x7f, parm_offset(modrelease), 0}, /* env1 release */
	62	{PARM_BYTE_HI, 0, 0x7f, parm_offset(moddcysus), 0}, /* env1 sustain */
	63	{PARM_BYTE_HI, 0, 0xff, parm_offset(pefe), 0}, /* env1 pitch */
	64	{PARM_BYTE_LO, 0, 0xff, parm_offset(pefe), 0}, /* env1 fc */
	65
	66	{PARM_WORD, 0, 0x8000, parm_offset(voldelay), 0}, /* env2 delay */
	67	{PARM_BYTE_LO, 1, 0x80, parm_offset(volatkhld), 0}, /* env2 attack */
	68	{PARM_BYTE_HI, 0, 0x7e, parm_offset(volatkhld), 0}, /* env2 hold */
	69	{PARM_BYTE_LO, 1, 0x7f, parm_offset(voldcysus), 0}, /* env2 decay */
	70	{PARM_BYTE_LO, 1, 0x7f, parm_offset(volrelease), 0}, /* env2 release */
	71	{PARM_BYTE_HI, 0, 0x7f, parm_offset(voldcysus), 0}, /* env2 sustain */
	72
	73	{PARM_WORD, 0, 0x8000, parm_offset(lfo1delay), 0}, /* lfo1 delay */
	74	{PARM_BYTE_LO, 0, 0xff, parm_offset(tremfrq), SNDRV_EMUX_UPDATE_TREMFREQ}, /* lfo1 freq */
	75	{PARM_SIGN_HI, -128, 127, parm_offset(tremfrq), SNDRV_EMUX_UPDATE_TREMFREQ}, /* lfo1 vol */
	76	{PARM_SIGN_HI, -128, 127, parm_offset(fmmod), SNDRV_EMUX_UPDATE_FMMOD}, /* lfo1 pitch */
	77	{PARM_BYTE_LO, 0, 0xff, parm_offset(fmmod), SNDRV_EMUX_UPDATE_FMMOD}, /* lfo1 cutoff */
	78
	79	{PARM_WORD, 0, 0x8000, parm_offset(lfo2delay), 0}, /* lfo2 delay */
	80	{PARM_BYTE_LO, 0, 0xff, parm_offset(fm2frq2), SNDRV_EMUX_UPDATE_FM2FRQ2}, /* lfo2 freq */
	81	{PARM_SIGN_HI, -128, 127, parm_offset(fm2frq2), SNDRV_EMUX_UPDATE_FM2FRQ2}, /* lfo2 pitch */
	82
	83	{PARM_WORD, 0, 0xffff, -1, SNDRV_EMUX_UPDATE_PITCH}, /* initial pitch */
	84	{PARM_BYTE, 0, 0xff, parm_offset(chorus), 0}, /* chorus */
	85	{PARM_BYTE, 0, 0xff, parm_offset(reverb), 0}, /* reverb */
	86	{PARM_BYTE, 0, 0xff, parm_offset(cutoff), SNDRV_EMUX_UPDATE_VOLUME}, /* cutoff */
	87	{PARM_BYTE, 0, 15, parm_offset(filterQ), SNDRV_EMUX_UPDATE_Q}, /* resonance */
	88
	89	{PARM_WORD, 0, 0xffff, -1, 0}, /* sample start */
	90	{PARM_WORD, 0, 0xffff, -1, 0}, /* loop start */
	91	{PARM_WORD, 0, 0xffff, -1, 0}, /* loop end */
	92	{PARM_WORD, 0, 0xffff, -1, 0}, /* coarse sample start */
	93	{PARM_WORD, 0, 0xffff, -1, 0}, /* coarse loop start */
	94	{PARM_WORD, 0, 0xffff, -1, 0}, /* coarse loop end */
	95	{PARM_BYTE, 0, 0xff, -1, SNDRV_EMUX_UPDATE_VOLUME}, /* initial attenuation */
	96	};
	97
	98	/* set byte effect value */
	99	static void
03da312a	100	effect_set_byte(unsigned char valp, struct snd_midi_channel chan, int type)
1da177e4 LT	101	{
1da177e4 LT	102	short effect;
03da312a	103	struct snd_emux_effect_table *fx = chan->private;
1da177e4 LT	104
	105	effect = fx->val[type];
	106	if (fx->flag[type] == EMUX_FX_FLAG_ADD) {
	107	if (parm_defs[type].type & PARM_IS_SIGNED)
	108	effect += (char)valp;
	109	else
	110	effect += *valp;
	111	}
	112	if (effect < parm_defs[type].low)
	113	effect = parm_defs[type].low;
	114	else if (effect > parm_defs[type].high)
	115	effect = parm_defs[type].high;
	116	*valp = (unsigned char)effect;
	117	}
	118
	119	/* set word effect value */
	120	static void
03da312a	121	effect_set_word(unsigned short valp, struct snd_midi_channel chan, int type)
1da177e4 LT	122	{
1da177e4 LT	123	int effect;
03da312a	124	struct snd_emux_effect_table *fx = chan->private;
1da177e4 LT	125
	126	effect = (unsigned short)&fx->val[type];
	127	if (fx->flag[type] == EMUX_FX_FLAG_ADD)
	128	effect += *valp;
	129	if (effect < parm_defs[type].low)
	130	effect = parm_defs[type].low;
	131	else if (effect > parm_defs[type].high)
	132	effect = parm_defs[type].high;
	133	*valp = (unsigned short)effect;
	134	}
	135
	136	/* address offset */
	137	static int
03da312a	138	effect_get_offset(struct snd_midi_channel *chan, int lo, int hi, int mode)
1da177e4 LT	139	{
1da177e4 LT	140	int addr = 0;
03da312a	141	struct snd_emux_effect_table *fx = chan->private;
1da177e4 LT	142
	143	if (fx->flag[hi])
	144	addr = (short)fx->val[hi];
	145	addr = addr << 15;
	146	if (fx->flag[lo])
	147	addr += (short)fx->val[lo];
	148	if (!(mode & SNDRV_SFNT_SAMPLE_8BITS))
	149	addr /= 2;
	150	return addr;
	151	}
	152
	153	#ifdef CONFIG_SND_SEQUENCER_OSS
	154	/* change effects - for OSS sequencer compatibility */
	155	void
03da312a TI	156	snd_emux_send_effect_oss(struct snd_emux_port *port,
03da312a TI	157	struct snd_midi_channel *chan, int type, int val)
1da177e4 LT	158	{
	159	int mode;
	160
	161	if (type & 0x40)
	162	mode = EMUX_FX_FLAG_OFF;
	163	else if (type & 0x80)
	164	mode = EMUX_FX_FLAG_ADD;
	165	else
	166	mode = EMUX_FX_FLAG_SET;
	167	type &= 0x3f;
	168
	169	snd_emux_send_effect(port, chan, type, val, mode);
	170	}
	171	#endif
	172
	173	/* Modify the effect value.
	174	* if update is necessary, call emu8000_control
	175	*/
	176	void
03da312a TI	177	snd_emux_send_effect(struct snd_emux_port port, struct snd_midi_channel chan,
03da312a TI	178	int type, int val, int mode)
1da177e4 LT	179	{
	180	int i;
	181	int offset;
	182	unsigned char srcp, origp;
03da312a TI	183	struct snd_emux *emu;
03da312a TI	184	struct snd_emux_effect_table *fx;
1da177e4 LT	185	unsigned long flags;
	186
	187	emu = port->emu;
	188	fx = chan->private;
	189	if (emu == NULL \|\| fx == NULL)
	190	return;
	191	if (type < 0 \|\| type >= EMUX_NUM_EFFECTS)
	192	return;
	193
	194	fx->val[type] = val;
	195	fx->flag[type] = mode;
	196
	197	/* do we need to modify the register in realtime ? */
	198	if (! parm_defs[type].update \|\| (offset = parm_defs[type].offset) < 0)
	199	return;
	200
	201	#ifdef SNDRV_LITTLE_ENDIAN
	202	if (parm_defs[type].type & PARM_IS_ALIGN_HI)
	203	offset++;
	204	#else
	205	if (parm_defs[type].type & PARM_IS_ALIGN_LO)
	206	offset++;
	207	#endif
	208	/* modify the register values */
	209	spin_lock_irqsave(&emu->voice_lock, flags);
	210	for (i = 0; i < emu->max_voices; i++) {
03da312a	211	struct snd_emux_voice *vp = &emu->voices[i];
1da177e4 LT	212	if (!STATE_IS_PLAYING(vp->state) \|\| vp->chan != chan)
	213	continue;
	214	srcp = (unsigned char*)&vp->reg.parm + offset;
	215	origp = (unsigned char*)&vp->zone->v.parm + offset;
	216	if (parm_defs[i].type & PARM_IS_BYTE) {
	217	srcp = origp;
	218	effect_set_byte(srcp, chan, type);
	219	} else {
	220	(unsigned short)srcp = (unsigned short)origp;
	221	effect_set_word((unsigned short*)srcp, chan, type);
	222	}
	223	}
	224	spin_unlock_irqrestore(&emu->voice_lock, flags);
	225
	226	/* activate them */
	227	snd_emux_update_channel(port, chan, parm_defs[type].update);
	228	}
	229
	230
	231	/* copy wavetable registers to voice table */
	232	void
03da312a	233	snd_emux_setup_effect(struct snd_emux_voice *vp)
1da177e4	234	{
03da312a TI	235	struct snd_midi_channel *chan = vp->chan;
03da312a TI	236	struct snd_emux_effect_table *fx;
1da177e4 LT	237	unsigned char *srcp;
	238	int i;
	239
	240	if (! (fx = chan->private))
	241	return;
	242
	243	/* modify the register values via effect table */
	244	for (i = 0; i < EMUX_FX_END; i++) {
	245	int offset;
	246	if (! fx->flag[i] \|\| (offset = parm_defs[i].offset) < 0)
	247	continue;
	248	#ifdef SNDRV_LITTLE_ENDIAN
	249	if (parm_defs[i].type & PARM_IS_ALIGN_HI)
	250	offset++;
	251	#else
	252	if (parm_defs[i].type & PARM_IS_ALIGN_LO)
	253	offset++;
	254	#endif
	255	srcp = (unsigned char*)&vp->reg.parm + offset;
	256	if (parm_defs[i].type & PARM_IS_BYTE)
	257	effect_set_byte(srcp, chan, i);
	258	else
	259	effect_set_word((unsigned short*)srcp, chan, i);
	260	}
	261
	262	/* correct sample and loop points */
	263	vp->reg.start += effect_get_offset(chan, EMUX_FX_SAMPLE_START,
	264	EMUX_FX_COARSE_SAMPLE_START,
	265	vp->reg.sample_mode);
	266
	267	vp->reg.loopstart += effect_get_offset(chan, EMUX_FX_LOOP_START,
	268	EMUX_FX_COARSE_LOOP_START,
	269	vp->reg.sample_mode);
	270
	271	vp->reg.loopend += effect_get_offset(chan, EMUX_FX_LOOP_END,
	272	EMUX_FX_COARSE_LOOP_END,
	273	vp->reg.sample_mode);
	274	}
	275
	276	/*
	277	* effect table
	278	*/
	279	void
03da312a	280	snd_emux_create_effect(struct snd_emux_port *p)
1da177e4 LT	281	{
1da177e4 LT	282	int i;
03da312a TI	283	p->effect = kcalloc(p->chset.max_channels,
03da312a TI	284	sizeof(struct snd_emux_effect_table), GFP_KERNEL);
1da177e4 LT	285	if (p->effect) {
	286	for (i = 0; i < p->chset.max_channels; i++)
	287	p->chset.channels[i].private = p->effect + i;
	288	} else {
	289	for (i = 0; i < p->chset.max_channels; i++)
	290	p->chset.channels[i].private = NULL;
	291	}
	292	}
	293
	294	void
03da312a	295	snd_emux_delete_effect(struct snd_emux_port *p)
1da177e4	296	{
4d572776 JJ	297	kfree(p->effect);
4d572776 JJ	298	p->effect = NULL;
1da177e4 LT	299	}
	300
	301	void
03da312a	302	snd_emux_clear_effect(struct snd_emux_port *p)
1da177e4 LT	303	{
1da177e4 LT	304	if (p->effect) {
03da312a TI	305	memset(p->effect, 0, sizeof(struct snd_emux_effect_table) *
03da312a TI	306	p->chset.max_channels);
1da177e4 LT	307	}
	308	}
	309
	310	#endif /* SNDRV_EMUX_USE_RAW_EFFECT */