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emupcm.c
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emupcm.c
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/*
* Copyright (c) by Jaroslav Kysela <[email protected]>
* Creative Labs, Inc.
* Routines for control of EMU10K1 chips / PCM routines
* Multichannel PCM support Copyright (c) Lee Revell <[email protected]>
*
* BUGS:
* --
*
* TODO:
* --
*
* 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 <sound/driver.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/init.h>
#include <sound/core.h>
#include <sound/emu10k1.h>
static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu,
struct snd_emu10k1_voice *voice)
{
struct snd_emu10k1_pcm *epcm;
if ((epcm = voice->epcm) == NULL)
return;
if (epcm->substream == NULL)
return;
#if 0
printk("IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
epcm->substream->runtime->hw->pointer(emu, epcm->substream),
snd_pcm_lib_period_bytes(epcm->substream),
snd_pcm_lib_buffer_bytes(epcm->substream));
#endif
snd_pcm_period_elapsed(epcm->substream);
}
static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu,
unsigned int status)
{
#if 0
if (status & IPR_ADCBUFHALFFULL) {
if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
return;
}
#endif
snd_pcm_period_elapsed(emu->pcm_capture_substream);
}
static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu,
unsigned int status)
{
#if 0
if (status & IPR_MICBUFHALFFULL) {
if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
return;
}
#endif
snd_pcm_period_elapsed(emu->pcm_capture_mic_substream);
}
static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu,
unsigned int status)
{
#if 0
if (status & IPR_EFXBUFHALFFULL) {
if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME)
return;
}
#endif
snd_pcm_period_elapsed(emu->pcm_capture_efx_substream);
}
static snd_pcm_uframes_t snd_emu10k1_efx_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
unsigned int ptr;
if (!epcm->running)
return 0;
ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
ptr += runtime->buffer_size;
ptr -= epcm->ccca_start_addr;
ptr %= runtime->buffer_size;
return ptr;
}
static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm * epcm, int voices)
{
int err, i;
if (epcm->voices[1] != NULL && voices < 2) {
snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
epcm->voices[1] = NULL;
}
for (i = 0; i < voices; i++) {
if (epcm->voices[i] == NULL)
break;
}
if (i == voices)
return 0; /* already allocated */
for (i = 0; i < ARRAY_SIZE(epcm->voices); i++) {
if (epcm->voices[i]) {
snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
epcm->voices[i] = NULL;
}
}
err = snd_emu10k1_voice_alloc(epcm->emu,
epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
voices,
&epcm->voices[0]);
if (err < 0)
return err;
epcm->voices[0]->epcm = epcm;
if (voices > 1) {
for (i = 1; i < voices; i++) {
epcm->voices[i] = &epcm->emu->voices[epcm->voices[0]->number + i];
epcm->voices[i]->epcm = epcm;
}
}
if (epcm->extra == NULL) {
err = snd_emu10k1_voice_alloc(epcm->emu,
epcm->type == PLAYBACK_EMUVOICE ? EMU10K1_PCM : EMU10K1_EFX,
1,
&epcm->extra);
if (err < 0) {
/* printk("pcm_channel_alloc: failed extra: voices=%d, frame=%d\n", voices, frame); */
for (i = 0; i < voices; i++) {
snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
epcm->voices[i] = NULL;
}
return err;
}
epcm->extra->epcm = epcm;
epcm->extra->interrupt = snd_emu10k1_pcm_interrupt;
}
return 0;
}
static unsigned int capture_period_sizes[31] = {
384, 448, 512, 640,
384*2, 448*2, 512*2, 640*2,
384*4, 448*4, 512*4, 640*4,
384*8, 448*8, 512*8, 640*8,
384*16, 448*16, 512*16, 640*16,
384*32, 448*32, 512*32, 640*32,
384*64, 448*64, 512*64, 640*64,
384*128,448*128,512*128
};
static struct snd_pcm_hw_constraint_list hw_constraints_capture_period_sizes = {
.count = 31,
.list = capture_period_sizes,
.mask = 0
};
static unsigned int capture_rates[8] = {
8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000
};
static struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = {
.count = 8,
.list = capture_rates,
.mask = 0
};
static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate)
{
switch (rate) {
case 8000: return ADCCR_SAMPLERATE_8;
case 11025: return ADCCR_SAMPLERATE_11;
case 16000: return ADCCR_SAMPLERATE_16;
case 22050: return ADCCR_SAMPLERATE_22;
case 24000: return ADCCR_SAMPLERATE_24;
case 32000: return ADCCR_SAMPLERATE_32;
case 44100: return ADCCR_SAMPLERATE_44;
case 48000: return ADCCR_SAMPLERATE_48;
default:
snd_BUG();
return ADCCR_SAMPLERATE_8;
}
}
static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate)
{
switch (rate) {
case 8000: return A_ADCCR_SAMPLERATE_8;
case 11025: return A_ADCCR_SAMPLERATE_11;
case 12000: return A_ADCCR_SAMPLERATE_12; /* really supported? */
case 16000: return ADCCR_SAMPLERATE_16;
case 22050: return ADCCR_SAMPLERATE_22;
case 24000: return ADCCR_SAMPLERATE_24;
case 32000: return ADCCR_SAMPLERATE_32;
case 44100: return ADCCR_SAMPLERATE_44;
case 48000: return ADCCR_SAMPLERATE_48;
default:
snd_BUG();
return A_ADCCR_SAMPLERATE_8;
}
}
static unsigned int emu10k1_calc_pitch_target(unsigned int rate)
{
unsigned int pitch_target;
pitch_target = (rate << 8) / 375;
pitch_target = (pitch_target >> 1) + (pitch_target & 1);
return pitch_target;
}
#define PITCH_48000 0x00004000
#define PITCH_96000 0x00008000
#define PITCH_85000 0x00007155
#define PITCH_80726 0x00006ba2
#define PITCH_67882 0x00005a82
#define PITCH_57081 0x00004c1c
static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
{
if (pitch_target == PITCH_48000)
return CCCA_INTERPROM_0;
else if (pitch_target < PITCH_48000)
return CCCA_INTERPROM_1;
else if (pitch_target >= PITCH_96000)
return CCCA_INTERPROM_0;
else if (pitch_target >= PITCH_85000)
return CCCA_INTERPROM_6;
else if (pitch_target >= PITCH_80726)
return CCCA_INTERPROM_5;
else if (pitch_target >= PITCH_67882)
return CCCA_INTERPROM_4;
else if (pitch_target >= PITCH_57081)
return CCCA_INTERPROM_3;
else
return CCCA_INTERPROM_2;
}
/*
* calculate cache invalidate size
*
* stereo: channel is stereo
* w_16: using 16bit samples
*
* returns: cache invalidate size in samples
*/
static inline int emu10k1_ccis(int stereo, int w_16)
{
if (w_16) {
return stereo ? 24 : 26;
} else {
return stereo ? 24*2 : 26*2;
}
}
static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
int master, int extra,
struct snd_emu10k1_voice *evoice,
unsigned int start_addr,
unsigned int end_addr,
struct snd_emu10k1_pcm_mixer *mix)
{
struct snd_pcm_substream *substream = evoice->epcm->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int silent_page, tmp;
int voice, stereo, w_16;
unsigned char attn, send_amount[8];
unsigned char send_routing[8];
unsigned long flags;
unsigned int pitch_target;
unsigned int ccis;
voice = evoice->number;
stereo = runtime->channels == 2;
w_16 = snd_pcm_format_width(runtime->format) == 16;
if (!extra && stereo) {
start_addr >>= 1;
end_addr >>= 1;
}
if (w_16) {
start_addr >>= 1;
end_addr >>= 1;
}
spin_lock_irqsave(&emu->reg_lock, flags);
/* volume parameters */
if (extra) {
attn = 0;
memset(send_routing, 0, sizeof(send_routing));
send_routing[0] = 0;
send_routing[1] = 1;
send_routing[2] = 2;
send_routing[3] = 3;
memset(send_amount, 0, sizeof(send_amount));
} else {
/* mono, left, right (master voice = left) */
tmp = stereo ? (master ? 1 : 2) : 0;
memcpy(send_routing, &mix->send_routing[tmp][0], 8);
memcpy(send_amount, &mix->send_volume[tmp][0], 8);
}
ccis = emu10k1_ccis(stereo, w_16);
if (master) {
evoice->epcm->ccca_start_addr = start_addr + ccis;
if (extra) {
start_addr += ccis;
end_addr += ccis;
}
if (stereo && !extra) {
snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
snd_emu10k1_ptr_write(emu, CPF, (voice + 1), CPF_STEREO_MASK);
} else {
snd_emu10k1_ptr_write(emu, CPF, voice, 0);
}
}
/* setup routing */
if (emu->audigy) {
snd_emu10k1_ptr_write(emu, A_FXRT1, voice,
snd_emu10k1_compose_audigy_fxrt1(send_routing));
snd_emu10k1_ptr_write(emu, A_FXRT2, voice,
snd_emu10k1_compose_audigy_fxrt2(send_routing));
snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, voice,
((unsigned int)send_amount[4] << 24) |
((unsigned int)send_amount[5] << 16) |
((unsigned int)send_amount[6] << 8) |
(unsigned int)send_amount[7]);
} else
snd_emu10k1_ptr_write(emu, FXRT, voice,
snd_emu10k1_compose_send_routing(send_routing));
/* Stop CA */
/* Assumption that PT is already 0 so no harm overwriting */
snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]);
snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24));
snd_emu10k1_ptr_write(emu, PSST, voice, start_addr | (send_amount[2] << 24));
if (emu->card_capabilities->emu1010)
pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
else
pitch_target = emu10k1_calc_pitch_target(runtime->rate);
if (extra)
snd_emu10k1_ptr_write(emu, CCCA, voice, start_addr |
emu10k1_select_interprom(pitch_target) |
(w_16 ? 0 : CCCA_8BITSELECT));
else
snd_emu10k1_ptr_write(emu, CCCA, voice, (start_addr + ccis) |
emu10k1_select_interprom(pitch_target) |
(w_16 ? 0 : CCCA_8BITSELECT));
/* Clear filter delay memory */
snd_emu10k1_ptr_write(emu, Z1, voice, 0);
snd_emu10k1_ptr_write(emu, Z2, voice, 0);
/* invalidate maps */
silent_page = ((unsigned int)emu->silent_page.addr << 1) | MAP_PTI_MASK;
snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
/* modulation envelope */
snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
snd_emu10k1_ptr_write(emu, ATKHLDM, voice, 0);
snd_emu10k1_ptr_write(emu, DCYSUSM, voice, 0x007f);
snd_emu10k1_ptr_write(emu, LFOVAL1, voice, 0x8000);
snd_emu10k1_ptr_write(emu, LFOVAL2, voice, 0x8000);
snd_emu10k1_ptr_write(emu, FMMOD, voice, 0);
snd_emu10k1_ptr_write(emu, TREMFRQ, voice, 0);
snd_emu10k1_ptr_write(emu, FM2FRQ2, voice, 0);
snd_emu10k1_ptr_write(emu, ENVVAL, voice, 0x8000);
/* volume envelope */
snd_emu10k1_ptr_write(emu, ATKHLDV, voice, 0x7f7f);
snd_emu10k1_ptr_write(emu, ENVVOL, voice, 0x0000);
/* filter envelope */
snd_emu10k1_ptr_write(emu, PEFE_FILTERAMOUNT, voice, 0x7f);
/* pitch envelope */
snd_emu10k1_ptr_write(emu, PEFE_PITCHAMOUNT, voice, 0);
spin_unlock_irqrestore(&emu->reg_lock, flags);
}
static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
int err;
if ((err = snd_emu10k1_pcm_channel_alloc(epcm, params_channels(hw_params))) < 0)
return err;
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
return err;
if (err > 0) { /* change */
int mapped;
if (epcm->memblk != NULL)
snd_emu10k1_free_pages(emu, epcm->memblk);
epcm->memblk = snd_emu10k1_alloc_pages(emu, substream);
epcm->start_addr = 0;
if (! epcm->memblk)
return -ENOMEM;
mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page;
if (mapped < 0)
return -ENOMEM;
epcm->start_addr = mapped << PAGE_SHIFT;
}
return 0;
}
static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm;
if (runtime->private_data == NULL)
return 0;
epcm = runtime->private_data;
if (epcm->extra) {
snd_emu10k1_voice_free(epcm->emu, epcm->extra);
epcm->extra = NULL;
}
if (epcm->voices[1]) {
snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]);
epcm->voices[1] = NULL;
}
if (epcm->voices[0]) {
snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]);
epcm->voices[0] = NULL;
}
if (epcm->memblk) {
snd_emu10k1_free_pages(emu, epcm->memblk);
epcm->memblk = NULL;
epcm->start_addr = 0;
}
snd_pcm_lib_free_pages(substream);
return 0;
}
static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm;
int i;
if (runtime->private_data == NULL)
return 0;
epcm = runtime->private_data;
if (epcm->extra) {
snd_emu10k1_voice_free(epcm->emu, epcm->extra);
epcm->extra = NULL;
}
for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
if (epcm->voices[i]) {
snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]);
epcm->voices[i] = NULL;
}
}
if (epcm->memblk) {
snd_emu10k1_free_pages(emu, epcm->memblk);
epcm->memblk = NULL;
epcm->start_addr = 0;
}
snd_pcm_lib_free_pages(substream);
return 0;
}
static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
unsigned int start_addr, end_addr;
start_addr = epcm->start_addr;
end_addr = snd_pcm_lib_period_bytes(substream);
if (runtime->channels == 2) {
start_addr >>= 1;
end_addr >>= 1;
}
end_addr += start_addr;
snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
start_addr, end_addr, NULL);
start_addr = epcm->start_addr;
end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
start_addr, end_addr,
&emu->pcm_mixer[substream->number]);
if (epcm->voices[1])
snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
start_addr, end_addr,
&emu->pcm_mixer[substream->number]);
return 0;
}
static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
unsigned int start_addr, end_addr;
unsigned int channel_size;
int i;
start_addr = epcm->start_addr;
end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream);
/*
* the kX driver leaves some space between voices
*/
channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK;
snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
start_addr, start_addr + (channel_size / 2), NULL);
/* only difference with the master voice is we use it for the pointer */
snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
start_addr, start_addr + channel_size,
&emu->efx_pcm_mixer[0]);
start_addr += channel_size;
for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
start_addr, start_addr + channel_size,
&emu->efx_pcm_mixer[i]);
start_addr += channel_size;
}
return 0;
}
static struct snd_pcm_hardware snd_emu10k1_efx_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = NUM_EFX_PLAYBACK,
.channels_max = NUM_EFX_PLAYBACK,
.buffer_bytes_max = (64*1024),
.period_bytes_min = 64,
.period_bytes_max = (64*1024),
.periods_min = 2,
.periods_max = 2,
.fifo_size = 0,
};
static int snd_emu10k1_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
}
static int snd_emu10k1_capture_hw_free(struct snd_pcm_substream *substream)
{
return snd_pcm_lib_free_pages(substream);
}
static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
int idx;
/* zeroing the buffer size will stop capture */
snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
switch (epcm->type) {
case CAPTURE_AC97ADC:
snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
break;
case CAPTURE_EFX:
if (emu->audigy) {
snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
} else
snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
break;
default:
break;
}
snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr);
epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream);
epcm->capture_bs_val = 0;
for (idx = 0; idx < 31; idx++) {
if (capture_period_sizes[idx] == epcm->capture_bufsize) {
epcm->capture_bs_val = idx + 1;
break;
}
}
if (epcm->capture_bs_val == 0) {
snd_BUG();
epcm->capture_bs_val++;
}
if (epcm->type == CAPTURE_AC97ADC) {
epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE;
if (runtime->channels > 1)
epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE;
epcm->capture_cr_val |= emu->audigy ?
snd_emu10k1_audigy_capture_rate_reg(runtime->rate) :
snd_emu10k1_capture_rate_reg(runtime->rate);
}
return 0;
}
static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu, int extra, struct snd_emu10k1_voice *evoice)
{
struct snd_pcm_runtime *runtime;
unsigned int voice, stereo, i, ccis, cra = 64, cs, sample;
if (evoice == NULL)
return;
runtime = evoice->epcm->substream->runtime;
voice = evoice->number;
stereo = (!extra && runtime->channels == 2);
sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
ccis = emu10k1_ccis(stereo, sample == 0);
/* set cs to 2 * number of cache registers beside the invalidated */
cs = (sample == 0) ? (32-ccis) : (64-ccis+1) >> 1;
if (cs > 16) cs = 16;
for (i = 0; i < cs; i++) {
snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample);
if (stereo) {
snd_emu10k1_ptr_write(emu, CD0 + i, voice + 1, sample);
}
}
/* reset cache */
snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, 0);
snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice, cra);
if (stereo) {
snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice + 1, 0);
snd_emu10k1_ptr_write(emu, CCR_READADDRESS, voice + 1, cra);
}
/* fill cache */
snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice, ccis);
if (stereo) {
snd_emu10k1_ptr_write(emu, CCR_CACHEINVALIDSIZE, voice+1, ccis);
}
}
static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice,
int master, int extra,
struct snd_emu10k1_pcm_mixer *mix)
{
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
unsigned int attn, vattn;
unsigned int voice, tmp;
if (evoice == NULL) /* skip second voice for mono */
return;
substream = evoice->epcm->substream;
runtime = substream->runtime;
voice = evoice->number;
attn = extra ? 0 : 0x00ff;
tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
vattn = mix != NULL ? (mix->attn[tmp] << 16) : 0;
snd_emu10k1_ptr_write(emu, IFATN, voice, attn);
snd_emu10k1_ptr_write(emu, VTFT, voice, vattn | 0xffff);
snd_emu10k1_ptr_write(emu, CVCF, voice, vattn | 0xffff);
snd_emu10k1_ptr_write(emu, DCYSUSV, voice, 0x7f7f);
snd_emu10k1_voice_clear_loop_stop(emu, voice);
}
static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice, int master, int extra)
{
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
unsigned int voice, pitch, pitch_target;
if (evoice == NULL) /* skip second voice for mono */
return;
substream = evoice->epcm->substream;
runtime = substream->runtime;
voice = evoice->number;
pitch = snd_emu10k1_rate_to_pitch(runtime->rate) >> 8;
if (emu->card_capabilities->emu1010)
pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */
else
pitch_target = emu10k1_calc_pitch_target(runtime->rate);
snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, pitch_target);
if (master || evoice->epcm->type == PLAYBACK_EFX)
snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, pitch_target);
snd_emu10k1_ptr_write(emu, IP, voice, pitch);
if (extra)
snd_emu10k1_voice_intr_enable(emu, voice);
}
static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, struct snd_emu10k1_voice *evoice)
{
unsigned int voice;
if (evoice == NULL)
return;
voice = evoice->number;
snd_emu10k1_voice_intr_disable(emu, voice);
snd_emu10k1_ptr_write(emu, PTRX_PITCHTARGET, voice, 0);
snd_emu10k1_ptr_write(emu, CPF_CURRENTPITCH, voice, 0);
snd_emu10k1_ptr_write(emu, IFATN, voice, 0xffff);
snd_emu10k1_ptr_write(emu, VTFT, voice, 0xffff);
snd_emu10k1_ptr_write(emu, CVCF, voice, 0xffff);
snd_emu10k1_ptr_write(emu, IP, voice, 0);
}
static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
struct snd_emu10k1_pcm_mixer *mix;
int result = 0;
/* printk("trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", (int)emu, cmd, substream->ops->pointer(substream)); */
spin_lock(&emu->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra); /* do we need this? */
snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[0]);
/* follow thru */
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
mix = &emu->pcm_mixer[substream->number];
snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 1, 0, mix);
snd_emu10k1_playback_prepare_voice(emu, epcm->voices[1], 0, 0, mix);
snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 1, 0);
snd_emu10k1_playback_trigger_voice(emu, epcm->voices[1], 0, 0);
snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
epcm->running = 1;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
epcm->running = 0;
snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]);
snd_emu10k1_playback_stop_voice(emu, epcm->voices[1]);
snd_emu10k1_playback_stop_voice(emu, epcm->extra);
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&emu->reg_lock);
return result;
}
static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
int result = 0;
spin_lock(&emu->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
/* hmm this should cause full and half full interrupt to be raised? */
outl(epcm->capture_ipr, emu->port + IPR);
snd_emu10k1_intr_enable(emu, epcm->capture_inte);
/* printk("adccr = 0x%x, adcbs = 0x%x\n", epcm->adccr, epcm->adcbs); */
switch (epcm->type) {
case CAPTURE_AC97ADC:
snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val);
break;
case CAPTURE_EFX:
if (emu->audigy) {
snd_emu10k1_ptr_write(emu, A_FXWC1, 0, epcm->capture_cr_val);
snd_emu10k1_ptr_write(emu, A_FXWC2, 0, epcm->capture_cr_val2);
snd_printdd("cr_val=0x%x, cr_val2=0x%x\n", epcm->capture_cr_val, epcm->capture_cr_val2);
} else
snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val);
break;
default:
break;
}
snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val);
epcm->running = 1;
epcm->first_ptr = 1;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
epcm->running = 0;
snd_emu10k1_intr_disable(emu, epcm->capture_inte);
outl(epcm->capture_ipr, emu->port + IPR);
snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0);
switch (epcm->type) {
case CAPTURE_AC97ADC:
snd_emu10k1_ptr_write(emu, ADCCR, 0, 0);
break;
case CAPTURE_EFX:
if (emu->audigy) {
snd_emu10k1_ptr_write(emu, A_FXWC1, 0, 0);
snd_emu10k1_ptr_write(emu, A_FXWC2, 0, 0);
} else
snd_emu10k1_ptr_write(emu, FXWC, 0, 0);
break;
default:
break;
}
break;
default:
result = -EINVAL;
}
spin_unlock(&emu->reg_lock);
return result;
}
static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
unsigned int ptr;
if (!epcm->running)
return 0;
ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff;
#if 0 /* Perex's code */
ptr += runtime->buffer_size;
ptr -= epcm->ccca_start_addr;
ptr %= runtime->buffer_size;
#else /* EMU10K1 Open Source code from Creative */
if (ptr < epcm->ccca_start_addr)
ptr += runtime->buffer_size - epcm->ccca_start_addr;
else {
ptr -= epcm->ccca_start_addr;
if (ptr >= runtime->buffer_size)
ptr -= runtime->buffer_size;
}
#endif
/* printk("ptr = 0x%x, buffer_size = 0x%x, period_size = 0x%x\n", ptr, runtime->buffer_size, runtime->period_size); */
return ptr;
}
static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
int i;
int result = 0;
spin_lock(&emu->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
/* prepare voices */
for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
snd_emu10k1_playback_invalidate_cache(emu, 0, epcm->voices[i]);
}
snd_emu10k1_playback_invalidate_cache(emu, 1, epcm->extra);
/* follow thru */
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
snd_emu10k1_playback_prepare_voice(emu, epcm->extra, 1, 1, NULL);
snd_emu10k1_playback_prepare_voice(emu, epcm->voices[0], 0, 0,
&emu->efx_pcm_mixer[0]);
for (i = 1; i < NUM_EFX_PLAYBACK; i++)
snd_emu10k1_playback_prepare_voice(emu, epcm->voices[i], 0, 0,
&emu->efx_pcm_mixer[i]);
snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0], 0, 0);
snd_emu10k1_playback_trigger_voice(emu, epcm->extra, 1, 1);
for (i = 1; i < NUM_EFX_PLAYBACK; i++)
snd_emu10k1_playback_trigger_voice(emu, epcm->voices[i], 0, 0);
epcm->running = 1;
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
epcm->running = 0;
for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]);
}
snd_emu10k1_playback_stop_voice(emu, epcm->extra);
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&emu->reg_lock);
return result;
}
static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
unsigned int ptr;
if (!epcm->running)
return 0;
if (epcm->first_ptr) {
udelay(50); /* hack, it takes awhile until capture is started */
epcm->first_ptr = 0;
}
ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff;
return bytes_to_frames(runtime, ptr);
}
/*
* Playback support device description
*/
static struct snd_pcm_hardware snd_emu10k1_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE),
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000,
.rate_min = 4000,
.rate_max = 96000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (128*1024),
.period_bytes_min = 64,
.period_bytes_max = (128*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
/*
* Capture support device description
*/
static struct snd_pcm_hardware snd_emu10k1_capture =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (64*1024),
.period_bytes_min = 384,
.period_bytes_max = (64*1024),
.periods_min = 2,
.periods_max = 2,
.fifo_size = 0,
};
static struct snd_pcm_hardware snd_emu10k1_capture_efx =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
.rate_min = 44100,
.rate_max = 192000,
.channels_min = 8,
.channels_max = 8,
.buffer_bytes_max = (64*1024),
.period_bytes_min = 384,
.period_bytes_max = (64*1024),
.periods_min = 2,
.periods_max = 2,