1 // SPDX-License-Identifier: GPL-2.0-or-later
6  *  Copyright (c) 1999-2000 Takashi Iwai <[email protected]>
19 #define xoffsetof(type,tag)	((long)(&((type)NULL)->tag) - (long)(NULL))
40 	long offset;	/* offset in parameter record (-1 = not written) */
41 	int update;	/* flgas for real-time update */
61 	{PARM_SIGN_HI, -128, 127, parm_offset(tremfrq), SNDRV_EMUX_UPDATE_TREMFREQ},	/* lfo1 vol */
62 	{PARM_SIGN_HI, -128, 127, parm_offset(fmmod), SNDRV_EMUX_UPDATE_FMMOD},	/* lfo1 pitch */
67 	{PARM_SIGN_HI, -128, 127, parm_offset(fm2frq2), SNDRV_EMUX_UPDATE_FM2FRQ2},	/* lfo2 pitch */
69 	{PARM_WORD, 0, 0xffff, -1, SNDRV_EMUX_UPDATE_PITCH},	/* initial pitch */
75 	{PARM_WORD, 0, 0xffff, -1, 0},	/* sample start */
76 	{PARM_WORD, 0, 0xffff, -1, 0},	/* loop start */
77 	{PARM_WORD, 0, 0xffff, -1, 0},	/* loop end */
78 	{PARM_WORD, 0, 0xffff, -1, 0},	/* coarse sample start */
79 	{PARM_WORD, 0, 0xffff, -1, 0},	/* coarse loop start */
80 	{PARM_WORD, 0, 0xffff, -1, 0},	/* coarse loop end */
81 	{PARM_BYTE, 0, 0xff, -1, SNDRV_EMUX_UPDATE_VOLUME},	/* initial attenuation */
89 	struct snd_emux_effect_table *fx = chan->private;  in effect_set_byte()
91 	effect = fx->val[type];  in effect_set_byte()
92 	if (fx->flag[type] == EMUX_FX_FLAG_ADD) {  in effect_set_byte()
110 	struct snd_emux_effect_table *fx = chan->private;  in effect_set_word()
112 	effect = *(unsigned short*)&fx->val[type];  in effect_set_word()
113 	if (fx->flag[type] == EMUX_FX_FLAG_ADD)  in effect_set_word()
127 	struct snd_emux_effect_table *fx = chan->private;  in effect_get_offset()
129 	if (fx->flag[hi])  in effect_get_offset()
130 		addr = (short)fx->val[hi];  in effect_get_offset()
132 	if (fx->flag[lo])  in effect_get_offset()
133 		addr += (short)fx->val[lo];  in effect_get_offset()
140 /* change effects - for OSS sequencer compatibility */
173 	emu = port->emu;  in snd_emux_send_effect()
174 	fx = chan->private;  in snd_emux_send_effect()
180 	fx->val[type] = val;  in snd_emux_send_effect()
181 	fx->flag[type] = mode;  in snd_emux_send_effect()
198 	spin_lock_irqsave(&emu->voice_lock, flags);  in snd_emux_send_effect()
199 	for (i = 0; i < emu->max_voices; i++) {  in snd_emux_send_effect()
200 		struct snd_emux_voice *vp = &emu->voices[i];  in snd_emux_send_effect()  local
201 		if (!STATE_IS_PLAYING(vp->state) || vp->chan != chan)  in snd_emux_send_effect()
203 		srcp = (unsigned char*)&vp->reg.parm + offset;  in snd_emux_send_effect()
204 		origp = (unsigned char*)&vp->zone->v.parm + offset;  in snd_emux_send_effect()
213 	spin_unlock_irqrestore(&emu->voice_lock, flags);  in snd_emux_send_effect()
222 snd_emux_setup_effect(struct snd_emux_voice *vp)  in snd_emux_setup_effect()  argument
224 	struct snd_midi_channel *chan = vp->chan;  in snd_emux_setup_effect()
229 	fx = chan->private;  in snd_emux_setup_effect()
236 		if (!fx->flag[i])  in snd_emux_setup_effect()
248 		srcp = (unsigned char*)&vp->reg.parm + offset;  in snd_emux_setup_effect()
256 	vp->reg.start += effect_get_offset(chan, EMUX_FX_SAMPLE_START,  in snd_emux_setup_effect()
258 					   vp->reg.sample_mode);  in snd_emux_setup_effect()
260 	vp->reg.loopstart += effect_get_offset(chan, EMUX_FX_LOOP_START,  in snd_emux_setup_effect()
262 					       vp->reg.sample_mode);  in snd_emux_setup_effect()
264 	vp->reg.loopend += effect_get_offset(chan, EMUX_FX_LOOP_END,  in snd_emux_setup_effect()
266 					     vp->reg.sample_mode);  in snd_emux_setup_effect()
273 snd_emux_create_effect(struct snd_emux_port *p)  in snd_emux_create_effect()  argument
276 	p->effect = kcalloc(p->chset.max_channels,  in snd_emux_create_effect()
278 	if (p->effect) {  in snd_emux_create_effect()
279 		for (i = 0; i < p->chset.max_channels; i++)  in snd_emux_create_effect()
280 			p->chset.channels[i].private = p->effect + i;  in snd_emux_create_effect()
282 		for (i = 0; i < p->chset.max_channels; i++)  in snd_emux_create_effect()
283 			p->chset.channels[i].private = NULL;  in snd_emux_create_effect()
288 snd_emux_delete_effect(struct snd_emux_port *p)  in snd_emux_delete_effect()  argument
290 	kfree(p->effect);  in snd_emux_delete_effect()
291 	p->effect = NULL;  in snd_emux_delete_effect()
295 snd_emux_clear_effect(struct snd_emux_port *p)  in snd_emux_clear_effect()  argument
297 	if (p->effect) {  in snd_emux_clear_effect()
298 		memset(p->effect, 0, sizeof(struct snd_emux_effect_table) *  in snd_emux_clear_effect()
299 		       p->chset.max_channels);  in snd_emux_clear_effect()