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kernel-ark/sound/pci/emu10k1/emupcm.c
Jaroslav Kysela 56385a12d9 ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter) 
With some hardware combinations, the PCM interrupts are acknowledged
before the period boundary from the emu10k1 chip. The midlevel PCM code
gets confused and the playback stream is interrupted.

It seems that the interrupt processing shift by 2 samples is enough
to fix this issue. This default value does not harm other,
non-affected hardware.

More information: Kernel bugzilla bug#16300

[A copmile warning fixed by tiwai]

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-08-18 15:10:59 +02:00

1866 lines
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/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Creative Labs, Inc.
* Routines for control of EMU10K1 chips / PCM routines
* Multichannel PCM support Copyright (c) Lee Revell <rlrevell@joe-job.com>
*
* 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 <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(KERN_DEBUG "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(KERN_DEBUG "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 + emu->delay_pcm_irq;
}
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 + (extra ? emu->delay_pcm_irq : 0)) |
(send_amount[2] << 24));
if (emu->card_capabilities->emu_model)
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->emu_model)
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 inline void snd_emu10k1_playback_mangle_extra(struct snd_emu10k1 *emu,
struct snd_emu10k1_pcm *epcm,
struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime)
{
unsigned int ptr, period_pos;
/* try to sychronize the current position for the interrupt
source voice */
period_pos = runtime->status->hw_ptr - runtime->hw_ptr_interrupt;
period_pos %= runtime->period_size;
ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->extra->number);
ptr &= ~0x00ffffff;
ptr |= epcm->ccca_start_addr + period_pos;
snd_emu10k1_ptr_write(emu, CCCA, epcm->extra->number, ptr);
}
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(KERN_DEBUG "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:
if (cmd == SNDRV_PCM_TRIGGER_PAUSE_RELEASE)
snd_emu10k1_playback_mangle_extra(emu, epcm, substream, runtime);
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(KERN_DEBUG "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(KERN_DEBUG
"ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n",
(long)ptr, (long)runtime->buffer_size,
(long)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,
.fifo_size = 0,
};
/*
*
*/
static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate)
{
struct snd_ctl_elem_id id;
if (! kctl)
return;
if (activate)
kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
else
kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO,
snd_ctl_build_ioff(&id, kctl, idx));
}
static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
{
snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate);
snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate);
snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate);
}
static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate)
{
snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate);
snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate);
snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate);
}
static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime)
{
kfree(runtime->private_data);
}
static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_pcm_mixer *mix;
int i;
for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
mix = &emu->efx_pcm_mixer[i];
mix->epcm = NULL;
snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0);
}
return 0;
}
static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_pcm *epcm;
struct snd_emu10k1_pcm_mixer *mix;
struct snd_pcm_runtime *runtime = substream->runtime;
int i;
epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
if (epcm == NULL)
return -ENOMEM;
epcm->emu = emu;
epcm->type = PLAYBACK_EFX;
epcm->substream = substream;
emu->pcm_playback_efx_substream = substream;
runtime->private_data = epcm;
runtime->private_free = snd_emu10k1_pcm_free_substream;
runtime->hw = snd_emu10k1_efx_playback;
for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
mix = &emu->efx_pcm_mixer[i];
mix->send_routing[0][0] = i;
memset(&mix->send_volume, 0, sizeof(mix->send_volume));
mix->send_volume[0][0] = 255;
mix->attn[0] = 0xffff;
mix->epcm = epcm;
snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1);
}
return 0;
}
static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_pcm *epcm;
struct snd_emu10k1_pcm_mixer *mix;
struct snd_pcm_runtime *runtime = substream->runtime;
int i, err;
epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
if (epcm == NULL)
return -ENOMEM;
epcm->emu = emu;
epcm->type = PLAYBACK_EMUVOICE;
epcm->substream = substream;
runtime->private_data = epcm;
runtime->private_free = snd_emu10k1_pcm_free_substream;
runtime->hw = snd_emu10k1_playback;
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
kfree(epcm);
return err;
}
if ((err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX)) < 0) {
kfree(epcm);
return err;
}
mix = &emu->pcm_mixer[substream->number];
for (i = 0; i < 4; i++)
mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i;
memset(&mix->send_volume, 0, sizeof(mix->send_volume));
mix->send_volume[0][0] = mix->send_volume[0][1] =
mix->send_volume[1][0] = mix->send_volume[2][1] = 255;
mix->attn[0] = mix->attn[1] = mix->attn[2] = 0xffff;
mix->epcm = epcm;
snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1);
return 0;
}
static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number];
mix->epcm = NULL;
snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0);
return 0;
}
static int snd_emu10k1_capture_open(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;
epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
if (epcm == NULL)
return -ENOMEM;
epcm->emu = emu;
epcm->type = CAPTURE_AC97ADC;
epcm->substream = substream;
epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL;
epcm->capture_inte = INTE_ADCBUFENABLE;
epcm->capture_ba_reg = ADCBA;
epcm->capture_bs_reg = ADCBS;
epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX;
runtime->private_data = epcm;
runtime->private_free = snd_emu10k1_pcm_free_substream;
runtime->hw = snd_emu10k1_capture;
emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt;
emu->pcm_capture_substream = substream;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates);
return 0;
}
static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
emu->capture_interrupt = NULL;
emu->pcm_capture_substream = NULL;
return 0;
}
static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_pcm *epcm;
struct snd_pcm_runtime *runtime = substream->runtime;
epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
if (epcm == NULL)
return -ENOMEM;
epcm->emu = emu;
epcm->type = CAPTURE_AC97MIC;
epcm->substream = substream;
epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL;
epcm->capture_inte = INTE_MICBUFENABLE;
epcm->capture_ba_reg = MICBA;
epcm->capture_bs_reg = MICBS;
epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX;
substream->runtime->private_data = epcm;
substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
runtime->hw = snd_emu10k1_capture;
runtime->hw.rates = SNDRV_PCM_RATE_8000;
runtime->hw.rate_min = runtime->hw.rate_max = 8000;
runtime->hw.channels_min = 1;
emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt;
emu->pcm_capture_mic_substream = substream;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
return 0;
}
static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
emu->capture_interrupt = NULL;
emu->pcm_capture_mic_substream = NULL;
return 0;
}
static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_pcm *epcm;
struct snd_pcm_runtime *runtime = substream->runtime;
int nefx = emu->audigy ? 64 : 32;
int idx;
epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
if (epcm == NULL)
return -ENOMEM;
epcm->emu = emu;
epcm->type = CAPTURE_EFX;
epcm->substream = substream;
epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL;
epcm->capture_inte = INTE_EFXBUFENABLE;
epcm->capture_ba_reg = FXBA;
epcm->capture_bs_reg = FXBS;
epcm->capture_idx_reg = FXIDX;
substream->runtime->private_data = epcm;
substream->runtime->private_free = snd_emu10k1_pcm_free_substream;
runtime->hw = snd_emu10k1_capture_efx;
runtime->hw.rates = SNDRV_PCM_RATE_48000;
runtime->hw.rate_min = runtime->hw.rate_max = 48000;
spin_lock_irq(&emu->reg_lock);
if (emu->card_capabilities->emu_model) {
/* Nb. of channels has been increased to 16 */
/* TODO
* SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE
* 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 = 16,
* channels_max = 16,
* Need to add mixer control to fix sample rate
*
* There are 32 mono channels of 16bits each.
* 24bit Audio uses 2x channels over 16bit
* 96kHz uses 2x channels over 48kHz
* 192kHz uses 4x channels over 48kHz
* So, for 48kHz 24bit, one has 16 channels
* for 96kHz 24bit, one has 8 channels
* for 192kHz 24bit, one has 4 channels
*
*/
#if 1
switch (emu->emu1010.internal_clock) {
case 0:
/* For 44.1kHz */
runtime->hw.rates = SNDRV_PCM_RATE_44100;
runtime->hw.rate_min = runtime->hw.rate_max = 44100;
runtime->hw.channels_min =
runtime->hw.channels_max = 16;
break;
case 1:
/* For 48kHz */
runtime->hw.rates = SNDRV_PCM_RATE_48000;
runtime->hw.rate_min = runtime->hw.rate_max = 48000;
runtime->hw.channels_min =
runtime->hw.channels_max = 16;
break;
};
#endif
#if 0
/* For 96kHz */
runtime->hw.rates = SNDRV_PCM_RATE_96000;
runtime->hw.rate_min = runtime->hw.rate_max = 96000;
runtime->hw.channels_min = runtime->hw.channels_max = 4;
#endif
#if 0
/* For 192kHz */
runtime->hw.rates = SNDRV_PCM_RATE_192000;
runtime->hw.rate_min = runtime->hw.rate_max = 192000;
runtime->hw.channels_min = runtime->hw.channels_max = 2;
#endif
runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
/* efx_voices_mask[0] is expected to be zero
* efx_voices_mask[1] is expected to have 32bits set
*/
} else {
runtime->hw.channels_min = runtime->hw.channels_max = 0;
for (idx = 0; idx < nefx; idx++) {
if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) {
runtime->hw.channels_min++;
runtime->hw.channels_max++;
}
}
}
epcm->capture_cr_val = emu->efx_voices_mask[0];
epcm->capture_cr_val2 = emu->efx_voices_mask[1];
spin_unlock_irq(&emu->reg_lock);
emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt;
emu->pcm_capture_efx_substream = substream;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_capture_period_sizes);
return 0;
}
static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
emu->capture_interrupt = NULL;
emu->pcm_capture_efx_substream = NULL;
return 0;
}
static struct snd_pcm_ops snd_emu10k1_playback_ops = {
.open = snd_emu10k1_playback_open,
.close = snd_emu10k1_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_emu10k1_playback_hw_params,
.hw_free = snd_emu10k1_playback_hw_free,
.prepare = snd_emu10k1_playback_prepare,
.trigger = snd_emu10k1_playback_trigger,
.pointer = snd_emu10k1_playback_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
static struct snd_pcm_ops snd_emu10k1_capture_ops = {
.open = snd_emu10k1_capture_open,
.close = snd_emu10k1_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_emu10k1_capture_hw_params,
.hw_free = snd_emu10k1_capture_hw_free,
.prepare = snd_emu10k1_capture_prepare,
.trigger = snd_emu10k1_capture_trigger,
.pointer = snd_emu10k1_capture_pointer,
};
/* EFX playback */
static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
.open = snd_emu10k1_efx_playback_open,
.close = snd_emu10k1_efx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_emu10k1_playback_hw_params,
.hw_free = snd_emu10k1_efx_playback_hw_free,
.prepare = snd_emu10k1_efx_playback_prepare,
.trigger = snd_emu10k1_efx_playback_trigger,
.pointer = snd_emu10k1_efx_playback_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
{
struct snd_pcm *pcm;
struct snd_pcm_substream *substream;
int err;
if (rpcm)
*rpcm = NULL;
if ((err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm)) < 0)
return err;
pcm->private_data = emu;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops);
pcm->info_flags = 0;
pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
strcpy(pcm->name, "ADC Capture/Standard PCM Playback");
emu->pcm = pcm;
for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
return err;
for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next)
snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
if (rpcm)
*rpcm = pcm;
return 0;
}
int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
{
struct snd_pcm *pcm;
struct snd_pcm_substream *substream;
int err;
if (rpcm)
*rpcm = NULL;
if ((err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm)) < 0)
return err;
pcm->private_data = emu;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops);
pcm->info_flags = 0;
pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
strcpy(pcm->name, "Multichannel Playback");
emu->pcm_multi = pcm;
for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
if ((err = snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(emu->pci), 64*1024, 64*1024)) < 0)
return err;
if (rpcm)
*rpcm = pcm;
return 0;
}
static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
.open = snd_emu10k1_capture_mic_open,
.close = snd_emu10k1_capture_mic_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_emu10k1_capture_hw_params,
.hw_free = snd_emu10k1_capture_hw_free,
.prepare = snd_emu10k1_capture_prepare,
.trigger = snd_emu10k1_capture_trigger,
.pointer = snd_emu10k1_capture_pointer,
};
int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
{
struct snd_pcm *pcm;
int err;
if (rpcm)
*rpcm = NULL;
if ((err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm)) < 0)
return err;
pcm->private_data = emu;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops);
pcm->info_flags = 0;
strcpy(pcm->name, "Mic Capture");
emu->pcm_mic = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
if (rpcm)
*rpcm = pcm;
return 0;
}
static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int nefx = emu->audigy ? 64 : 32;
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = nefx;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int nefx = emu->audigy ? 64 : 32;
int idx;
spin_lock_irq(&emu->reg_lock);
for (idx = 0; idx < nefx; idx++)
ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0;
spin_unlock_irq(&emu->reg_lock);
return 0;
}
static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
unsigned int nval[2], bits;
int nefx = emu->audigy ? 64 : 32;
int nefxb = emu->audigy ? 7 : 6;
int change, idx;
nval[0] = nval[1] = 0;
for (idx = 0, bits = 0; idx < nefx; idx++)
if (ucontrol->value.integer.value[idx]) {
nval[idx / 32] |= 1 << (idx % 32);
bits++;
}
for (idx = 0; idx < nefxb; idx++)
if (1 << idx == bits)
break;
if (idx >= nefxb)
return -EINVAL;
spin_lock_irq(&emu->reg_lock);
change = (nval[0] != emu->efx_voices_mask[0]) ||
(nval[1] != emu->efx_voices_mask[1]);
emu->efx_voices_mask[0] = nval[0];
emu->efx_voices_mask[1] = nval[1];
spin_unlock_irq(&emu->reg_lock);
return change;
}
static struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = {
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = "Captured FX8010 Outputs",
.info = snd_emu10k1_pcm_efx_voices_mask_info,
.get = snd_emu10k1_pcm_efx_voices_mask_get,
.put = snd_emu10k1_pcm_efx_voices_mask_put
};
static struct snd_pcm_ops snd_emu10k1_capture_efx_ops = {
.open = snd_emu10k1_capture_efx_open,
.close = snd_emu10k1_capture_efx_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_emu10k1_capture_hw_params,
.hw_free = snd_emu10k1_capture_hw_free,
.prepare = snd_emu10k1_capture_prepare,
.trigger = snd_emu10k1_capture_trigger,
.pointer = snd_emu10k1_capture_pointer,
};
/* EFX playback */
#define INITIAL_TRAM_SHIFT 14
#define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1)
static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data)
{
struct snd_pcm_substream *substream = private_data;
snd_pcm_period_elapsed(substream);
}
static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left,
unsigned short *dst_right,
unsigned short *src,
unsigned int count,
unsigned int tram_shift)
{
/*
printk(KERN_DEBUG "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, "
"src = 0x%p, count = 0x%x\n",
dst_left, dst_right, src, count);
*/
if ((tram_shift & 1) == 0) {
while (count--) {
*dst_left-- = *src++;
*dst_right-- = *src++;
}
} else {
while (count--) {
*dst_right-- = *src++;
*dst_left-- = *src++;
}
}
}
static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream,
struct snd_pcm_indirect *rec, size_t bytes)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
unsigned int tram_size = pcm->buffer_size;
unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data);
unsigned int frames = bytes >> 2, count;
unsigned int tram_pos = pcm->tram_pos;
unsigned int tram_shift = pcm->tram_shift;
while (frames > tram_pos) {
count = tram_pos + 1;
snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
(unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
src, count, tram_shift);
src += count * 2;
frames -= count;
tram_pos = (tram_size / 2) - 1;
tram_shift++;
}
snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos,
(unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2,
src, frames, tram_shift);
tram_pos -= frames;
pcm->tram_pos = tram_pos;
pcm->tram_shift = tram_shift;
}
static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, fx8010_pb_trans_copy);
return 0;
}
static int snd_emu10k1_fx8010_playback_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_fx8010_playback_hw_free(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
unsigned int i;
for (i = 0; i < pcm->channels; i++)
snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0);
snd_pcm_lib_free_pages(substream);
return 0;
}
static int snd_emu10k1_fx8010_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_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
unsigned int i;
/*
printk(KERN_DEBUG "prepare: etram_pages = 0x%p, dma_area = 0x%x, "
"buffer_size = 0x%x (0x%x)\n",
emu->fx8010.etram_pages, runtime->dma_area,
runtime->buffer_size, runtime->buffer_size << 2);
*/
memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec));
pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */
pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
pcm->tram_shift = 0;
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_running, 0, 0); /* reset */
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0); /* reset */
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_size, 0, runtime->buffer_size);
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_ptr, 0, 0); /* reset ptr number */
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_count, 0, runtime->period_size);
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_tmpcount, 0, runtime->period_size);
for (i = 0; i < pcm->channels; i++)
snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels));
return 0;
}
static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
int result = 0;
spin_lock(&emu->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
/* follow thru */
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
#ifdef EMU10K1_SET_AC3_IEC958
{
int i;
for (i = 0; i < 3; i++) {
unsigned int bits;
bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS |
0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA;
snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits);
}
}
#endif
result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);
if (result < 0)
goto __err;
snd_emu10k1_fx8010_playback_transfer(substream); /* roll the ball */
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
snd_emu10k1_fx8010_unregister_irq_handler(emu, pcm->irq); pcm->irq = NULL;
snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0);
pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size);
pcm->tram_shift = 0;
break;
default:
result = -EINVAL;
break;
}
__err:
spin_unlock(&emu->reg_lock);
return result;
}
static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
size_t ptr; /* byte pointer */
if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0))
return 0;
ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2;
return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
}
static struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
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_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 1,
.buffer_bytes_max = (128*1024),
.period_bytes_min = 1024,
.period_bytes_max = (128*1024),
.periods_min = 2,
.periods_max = 1024,
.fifo_size = 0,
};
static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
runtime->hw = snd_emu10k1_fx8010_playback;
runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels;
runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2;
spin_lock_irq(&emu->reg_lock);
if (pcm->valid == 0) {
spin_unlock_irq(&emu->reg_lock);
return -ENODEV;
}
pcm->opened = 1;
spin_unlock_irq(&emu->reg_lock);
return 0;
}
static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number];
spin_lock_irq(&emu->reg_lock);
pcm->opened = 0;
spin_unlock_irq(&emu->reg_lock);
return 0;
}
static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
.open = snd_emu10k1_fx8010_playback_open,
.close = snd_emu10k1_fx8010_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_emu10k1_fx8010_playback_hw_params,
.hw_free = snd_emu10k1_fx8010_playback_hw_free,
.prepare = snd_emu10k1_fx8010_playback_prepare,
.trigger = snd_emu10k1_fx8010_playback_trigger,
.pointer = snd_emu10k1_fx8010_playback_pointer,
.ack = snd_emu10k1_fx8010_playback_transfer,
};
int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
{
struct snd_pcm *pcm;
struct snd_kcontrol *kctl;
int err;
if (rpcm)
*rpcm = NULL;
if ((err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm)) < 0)
return err;
pcm->private_data = emu;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
pcm->info_flags = 0;
strcpy(pcm->name, "Multichannel Capture/PT Playback");
emu->pcm_efx = pcm;
if (rpcm)
*rpcm = pcm;
/* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
* to these
*/
/* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */
if (emu->audigy) {
emu->efx_voices_mask[0] = 0;
if (emu->card_capabilities->emu_model)
/* Pavel Hofman - 32 voices will be used for
* capture (write mode) -
* each bit = corresponding voice
*/
emu->efx_voices_mask[1] = 0xffffffff;
else
emu->efx_voices_mask[1] = 0xffff;
} else {
emu->efx_voices_mask[0] = 0xffff0000;
emu->efx_voices_mask[1] = 0;
}
/* For emu1010, the control has to set 32 upper bits (voices)
* out of the 64 bits (voices) to true for the 16-channels capture
* to work correctly. Correct A_FXWC2 initial value (0xffffffff)
* is already defined but the snd_emu10k1_pcm_efx_voices_mask
* control can override this register's value.
*/
kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu);
if (!kctl)
return -ENOMEM;
kctl->id.device = device;
snd_ctl_add(emu->card, kctl);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
return 0;
}
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