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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"
/**
* emu10k1_voice_alloc_buffer -
*
* allocates the memory buffer for a voice. Two page tables are kept for each buffer.
* One (dma_handle) keeps track of the host memory pages used and the other (virtualpagetable)
* is passed to the device so that it can do DMA to host memory.
*
*/
int emu10k1_voice_alloc_buffer(struct emu10k1_card *card, struct voice_mem *mem, u32 pages)
{
u32 pageindex, pagecount;
unsigned long busaddx;
int i;
DPD(2, "requested pages is: %d\n", pages);
if ((mem->emupageindex = emu10k1_addxmgr_alloc(pages * PAGE_SIZE, card)) < 0)
{
DPF(1, "couldn't allocate emu10k1 address space\n");
return -1;
}
/* Fill in virtual memory table */
for (pagecount = 0; pagecount < pages; pagecount++) {
if ((mem->addr[pagecount] = pci_alloc_consistent(card->pci_dev, PAGE_SIZE, &mem->dma_handle[pagecount]))
== NULL) {
mem->pages = pagecount;
DPF(1, "couldn't allocate dma memory\n");
return -1;
}
DPD(2, "Virtual Addx: %p\n", mem->addr[pagecount]);
for (i = 0; i < PAGE_SIZE / EMUPAGESIZE; i++) {
busaddx = mem->dma_handle[pagecount] + i * EMUPAGESIZE;
DPD(3, "Bus Addx: %#lx\n", busaddx);
pageindex = mem->emupageindex + pagecount * PAGE_SIZE / EMUPAGESIZE + i;
((u32 *) card->virtualpagetable.addr)[pageindex] = cpu_to_le32((busaddx * 2) | pageindex);
}
}
mem->pages = pagecount;
return 0;
}
/**
* emu10k1_voice_free_buffer -
*
* frees the memory buffer for a voice.
*/
void emu10k1_voice_free_buffer(struct emu10k1_card *card, struct voice_mem *mem)
{
u32 pagecount, pageindex;
int i;
if (mem->emupageindex < 0)
return;
for (pagecount = 0; pagecount < mem->pages; pagecount++) {
pci_free_consistent(card->pci_dev, PAGE_SIZE,
mem->addr[pagecount],
mem->dma_handle[pagecount]);
for (i = 0; i < PAGE_SIZE / EMUPAGESIZE; i++) {
pageindex = mem->emupageindex + pagecount * PAGE_SIZE / EMUPAGESIZE + i;
((u32 *) card->virtualpagetable.addr)[pageindex] =
cpu_to_le32((card->silentpage.dma_handle * 2) | pageindex);
}
}
emu10k1_addxmgr_free(card, mem->emupageindex);
mem->emupageindex = -1;
}
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;
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;
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);
sblive_writeptr(card, CPF, voice->num + i, 0);
}
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);
}
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);
voice->params[i].fc_target = 0xffff;
}
}
void emu10k1_voices_start(struct emu_voice *first_voice, unsigned int num_voices, int set)
{
struct emu10k1_card *card = first_voice->card;
struct emu_voice *voice;
unsigned int voicenum;
int j;
DPF(2, "emu10k1_voices_start()\n");
for (voicenum = 0; voicenum < num_voices; voicenum++)
{
voice = first_voice + voicenum;
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(j = 0; j < cs; j++)
sblive_writeptr(card, CD0 + j, 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 (j = 0; j < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); j++) {
sblive_writeptr_tag(card, voice->num + j,
IFATN, (voice->params[j].initial_fc << 8) | voice->params[j].initial_attn,
VTFT, (voice->params[j].volume_target << 16) | voice->params[j].fc_target,
CVCF, (voice->params[j].volume_target << 16) | voice->params[j].fc_target,
DCYSUSV, (voice->params[j].byampl_env_sustain << 8) | voice->params[j].byampl_env_decay,
TAGLIST_END);
emu10k1_clear_stop_on_loop(card, voice->num + j);
}
}
for (voicenum = 0; voicenum < num_voices; voicenum++)
{
voice = first_voice + voicenum;
for (j = 0; j < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); j++) {
sblive_writeptr(card, PTRX_PITCHTARGET, voice->num + j, voice->pitch_target);
if (j == 0)
sblive_writeptr(card, CPF_CURRENTPITCH, voice->num, voice->pitch_target);
sblive_writeptr(card, IP, voice->num + j, voice->initial_pitch);
}
}
}
void emu10k1_voices_stop(struct emu_voice *first_voice, int num_voices)
{
struct emu10k1_card *card = first_voice->card;
struct emu_voice *voice;
unsigned int voice_num;
int j;
DPF(2, "emu10k1_voice_stop()\n");
for (voice_num = 0; voice_num < num_voices; voice_num++)
{
voice = first_voice + voice_num;
for (j = 0; j < (voice->flags & VOICE_FLAGS_STEREO ? 2 : 1); j++) {
sblive_writeptr_tag(card, voice->num + j,
PTRX_PITCHTARGET, 0,
CPF_CURRENTPITCH, 0,
IFATN, 0xffff,
VTFT, 0x0000ffff,
CVCF, 0x0000ffff,
IP, 0,
TAGLIST_END);
}
}
}
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