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/*
**********************************************************************
* voicemgr.c - Voice manager for emu10k1 driver
* Copyright 1999, 2000 Creative Labs, Inc.
*
**********************************************************************
*
* Date Author Summary of changes
* ---- ------ ------------------
* October 20, 1999 Bertrand Lee base code release
*
**********************************************************************
*
* 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., 675 Mass Ave, Cambridge, MA 02139,
* USA.
*
**********************************************************************
*/
#include "voicemgr.h"
#include "8010.h"
int emu10k1_voice_alloc(struct emu10k1_card *card, struct emu_voice *voice)
{
u8 *voicetable = card->voicetable;
int i;
unsigned long flags;
DPF(2, "emu10k1_voice_alloc()\n");
spin_lock_irqsave(&card->lock, flags);
if (voice->flags & VOICE_FLAGS_STEREO) {
for (i = 0; i < NUM_G; i += 2)
if ((voicetable[i] == VOICE_USAGE_FREE) && (voicetable[i + 1] == VOICE_USAGE_FREE)) {
voicetable[i] = voice->usage;
voicetable[i + 1] = voice->usage;
break;
}
} else {
for (i = 0; i < NUM_G; i++)
if (voicetable[i] == VOICE_USAGE_FREE) {
voicetable[i] = voice->usage;
break;
}
}
spin_unlock_irqrestore(&card->lock, flags);
if (i >= NUM_G)
return -1;
voice->card = card;
voice->num = i;
#ifdef PRIVATE_PCM_VOLUME
for (i = 0; i < MAX_PCM_CHANNELS; i++) {
if (sblive_pcm_volume[i].files == current->files) {
sblive_pcm_volume[i].channel_l = voice->num;
DPD(2, "preset left: %d\n", voice->num);
if (voice->flags & VOICE_FLAGS_STEREO) {
sblive_pcm_volume[i].channel_r = voice->num + 1;
DPD(2, "preset right: %d\n", voice->num + 1);
}
break;
}
}
#endif
for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) {
DPD(2, " voice allocated -> %d\n", voice->num + i);
sblive_writeptr_tag(card, voice->num + i, IFATN, 0xffff,
DCYSUSV, 0,
VTFT, 0x0000ffff,
PTRX, 0,
TAGLIST_END);
}
return 0;
}
void emu10k1_voice_free(struct emu_voice *voice)
{
struct emu10k1_card *card = voice->card;
int i;
unsigned long flags;
DPF(2, "emu10k1_voice_free()\n");
if (voice->usage == VOICE_USAGE_FREE)
return;
#ifdef PRIVATE_PCM_VOLUME
for (i = 0; i < MAX_PCM_CHANNELS; i++) {
if (sblive_pcm_volume[i].files == current->files) {
if (voice->num == sblive_pcm_volume[i].channel_l)
sblive_pcm_volume[i].channel_l = NUM_G;
if ((voice->flags & VOICE_FLAGS_STEREO)
&& (voice->num + 1) == sblive_pcm_volume[i].channel_r) {
sblive_pcm_volume[i].channel_r = NUM_G;
}
break;
}
}
#endif
for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) {
DPD(2, " voice released -> %d\n", voice->num + i);
sblive_writeptr_tag(card, voice->num + i, DCYSUSV, 0,
VTFT, 0x0000ffff,
PTRX_PITCHTARGET, 0,
CVCF, 0x0000ffff,
CPF, 0,
TAGLIST_END);
}
voice->usage = VOICE_USAGE_FREE;
spin_lock_irqsave(&card->lock, flags);
card->voicetable[voice->num] = VOICE_USAGE_FREE;
if (voice->flags & VOICE_FLAGS_STEREO)
card->voicetable[voice->num + 1] = VOICE_USAGE_FREE;
spin_unlock_irqrestore(&card->lock, flags);
return;
}
void emu10k1_voice_playback_setup(struct emu_voice *voice)
{
struct emu10k1_card *card = voice->card;
u32 start;
int i;
DPF(2, "emu10k1_voice_playback_setup()\n");
if (voice->flags & VOICE_FLAGS_STEREO) {
/* Set stereo bit */
start = 28;
sblive_writeptr(card, CPF, voice->num, CPF_STEREO_MASK);
sblive_writeptr(card, CPF, voice->num + 1, CPF_STEREO_MASK);
} else {
start = 30;
sblive_writeptr(card, CPF, voice->num, 0);
}
if(!(voice->flags & VOICE_FLAGS_16BIT))
start *= 2;
voice->start += start;
for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) {
sblive_writeptr(card, FXRT, voice->num + i, voice->params[i].send_routing << 16);
/* Stop CA */
/* Assumption that PT is already 0 so no harm overwriting */
sblive_writeptr(card, PTRX, voice->num + i, (voice->params[i].send_a << 8) | voice->params[i].send_b);
sblive_writeptr_tag(card, voice->num + i,
/* CSL, ST, CA */
DSL, voice->endloop | (voice->params[i].send_d << 24),
PSST, voice->startloop | (voice->params[i].send_c << 24),
CCCA, (voice->start) | CCCA_INTERPROM_0 | ((voice->flags & VOICE_FLAGS_16BIT) ? 0 : CCCA_8BITSELECT),
/* Clear filter delay memory */
Z1, 0,
Z2, 0,
/* Invalidate maps */
MAPA, MAP_PTI_MASK | (card->silentpage.dma_handle * 2),
MAPB, MAP_PTI_MASK | (card->silentpage.dma_handle * 2),
/* modulation envelope */
CVCF, 0x0000ffff,
VTFT, 0x0000ffff,
ATKHLDM, 0,
DCYSUSM, 0x007f,
LFOVAL1, 0x8000,
LFOVAL2, 0x8000,
FMMOD, 0,
TREMFRQ, 0,
FM2FRQ2, 0,
ENVVAL, 0x8000,
/* volume envelope */
ATKHLDV, 0x7f7f,
ENVVOL, 0x8000,
/* filter envelope */
PEFE_FILTERAMOUNT, 0x7f,
/* pitch envelope */
PEFE_PITCHAMOUNT, 0, TAGLIST_END);
#ifdef PRIVATE_PCM_VOLUME
{
int j;
for (j = 0; j < MAX_PCM_CHANNELS; j++) {
if (sblive_pcm_volume[j].channel_l == voice->num + i) {
voice->params[i].initial_attn = (sblive_pcm_volume[j].channel_r < NUM_G) ? sblive_pcm_volume[i].attn_l :
// test for mono channel (reverse logic is correct here!)
(sblive_pcm_volume[j].attn_r >
sblive_pcm_volume[j].attn_l) ? sblive_pcm_volume[j].attn_l : sblive_pcm_volume[j].attn_r;
DPD(2, "set left volume %d\n", voice->params[i].initial_attn);
break;
} else if (sblive_pcm_volume[j].channel_r == voice->num + i) {
voice->params[i].initial_attn = sblive_pcm_volume[j].attn_r;
DPD(2, "set right volume %d\n", voice->params[i].initial_attn);
break;
}
}
}
#endif
voice->params[i].fc_target = 0xffff;
}
return;
}
void emu10k1_voice_start(struct emu_voice *voice, int set)
{
struct emu10k1_card *card = voice->card;
int i;
DPF(2, "emu10k1_voice_start()\n");
if (!set) {
u32 cra, ccis, cs, sample;
if (voice->flags & VOICE_FLAGS_STEREO) {
cra = 64;
ccis = 28;
cs = 4;
} else {
cra = 64;
ccis = 30;
cs = 2;
}
if(voice->flags & VOICE_FLAGS_16BIT) {
sample = 0x00000000;
} else {
sample = 0x80808080;
ccis *= 2;
}
for(i = 0; i < cs; i++)
sblive_writeptr(card, CD0 + i, voice->num, sample);
/* Reset cache */
sblive_writeptr(card, CCR_CACHEINVALIDSIZE, voice->num, 0);
if (voice->flags & VOICE_FLAGS_STEREO)
sblive_writeptr(card, CCR_CACHEINVALIDSIZE, voice->num + 1, 0);
sblive_writeptr(card, CCR_READADDRESS, voice->num, cra);
if (voice->flags & VOICE_FLAGS_STEREO)
sblive_writeptr(card, CCR_READADDRESS, voice->num + 1, cra);
/* Fill cache */
sblive_writeptr(card, CCR_CACHEINVALIDSIZE, voice->num, ccis);
}
for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) {
sblive_writeptr_tag(card, voice->num + i,
IFATN, (voice->params[i].initial_fc << 8) | voice->params[i].initial_attn,
VTFT, (voice->params[i].volume_target << 16) | voice->params[i].fc_target,
CVCF, (voice->params[i].volume_target << 16) | voice->params[i].fc_target,
DCYSUSV, (voice->params[i].byampl_env_sustain << 8) | voice->params[i].byampl_env_decay,
TAGLIST_END);
emu10k1_clear_stop_on_loop(card, voice->num + i);
sblive_writeptr(card, PTRX_PITCHTARGET, voice->num + i, voice->pitch_target);
if (i == 0)
sblive_writeptr(card, CPF_CURRENTPITCH, voice->num, voice->pitch_target);
sblive_writeptr(card, IP, voice->num + i, voice->initial_pitch);
}
return;
}
void emu10k1_voice_stop(struct emu_voice *voice)
{
struct emu10k1_card *card = voice->card;
int i;
DPF(2, "emu10k1_voice_stop()\n");
for (i = 0; i < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); i++) {
sblive_writeptr_tag(card, voice->num + i,
PTRX_PITCHTARGET, 0,
CPF_CURRENTPITCH, 0,
IFATN, 0xffff,
VTFT, 0x0000ffff,
CVCF, 0x0000ffff,
IP, 0,
TAGLIST_END);
}
return;
}
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