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linux_dsm_epyc7002/sound/isa/sb/sb16_main.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

892 lines
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Routines for control of 16-bit SoundBlaster cards and clones
* Note: This is very ugly hardware which uses one 8-bit DMA channel and
* second 16-bit DMA channel. Unfortunately 8-bit DMA channel can't
* transfer 16-bit samples and 16-bit DMA channels can't transfer
* 8-bit samples. This make full duplex more complicated than
* can be... People, don't buy these soundcards for full 16-bit
* duplex!!!
* Note: 16-bit wide is assigned to first direction which made request.
* With full duplex - playback is preferred with abstract layer.
*
* Note: Some chip revisions have hardware bug. Changing capture
* channel from full-duplex 8bit DMA to 16bit DMA will block
* 16bit DMA transfers from DSP chip (capture) until 8bit transfer
* to DSP chip (playback) starts. This bug can be avoided with
* "16bit DMA Allocation" setting set to Playback or Capture.
*/
#include <linux/io.h>
#include <asm/dma.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/sb.h>
#include <sound/sb16_csp.h>
#include <sound/mpu401.h>
#include <sound/control.h>
#include <sound/info.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Routines for control of 16-bit SoundBlaster cards and clones");
MODULE_LICENSE("GPL");
#define runtime_format_bits(runtime) \
((unsigned int)pcm_format_to_bits((runtime)->format))
#ifdef CONFIG_SND_SB16_CSP
static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
{
if (chip->hardware == SB_HW_16CSP) {
struct snd_sb_csp *csp = chip->csp;
if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
/* manually loaded codec */
if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) &&
(runtime_format_bits(runtime) == csp->acc_format)) {
/* Supported runtime PCM format for playback */
if (csp->ops.csp_use(csp) == 0) {
/* If CSP was successfully acquired */
goto __start_CSP;
}
} else if ((csp->mode & SNDRV_SB_CSP_MODE_QSOUND) && (csp->q_enabled)) {
/* QSound decoder is loaded and enabled */
if (runtime_format_bits(runtime) & (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE)) {
/* Only for simple PCM formats */
if (csp->ops.csp_use(csp) == 0) {
/* If CSP was successfully acquired */
goto __start_CSP;
}
}
}
} else if (csp->ops.csp_use(csp) == 0) {
/* Acquire CSP and try to autoload hardware codec */
if (csp->ops.csp_autoload(csp, runtime->format, SNDRV_SB_CSP_MODE_DSP_WRITE)) {
/* Unsupported format, release CSP */
csp->ops.csp_unuse(csp);
} else {
__start_CSP:
/* Try to start CSP */
if (csp->ops.csp_start(csp, (chip->mode & SB_MODE_PLAYBACK_16) ?
SNDRV_SB_CSP_SAMPLE_16BIT : SNDRV_SB_CSP_SAMPLE_8BIT,
(runtime->channels > 1) ?
SNDRV_SB_CSP_STEREO : SNDRV_SB_CSP_MONO)) {
/* Failed, release CSP */
csp->ops.csp_unuse(csp);
} else {
/* Success, CSP acquired and running */
chip->open = SNDRV_SB_CSP_MODE_DSP_WRITE;
}
}
}
}
}
static void snd_sb16_csp_capture_prepare(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
{
if (chip->hardware == SB_HW_16CSP) {
struct snd_sb_csp *csp = chip->csp;
if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
/* manually loaded codec */
if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_READ) &&
(runtime_format_bits(runtime) == csp->acc_format)) {
/* Supported runtime PCM format for capture */
if (csp->ops.csp_use(csp) == 0) {
/* If CSP was successfully acquired */
goto __start_CSP;
}
}
} else if (csp->ops.csp_use(csp) == 0) {
/* Acquire CSP and try to autoload hardware codec */
if (csp->ops.csp_autoload(csp, runtime->format, SNDRV_SB_CSP_MODE_DSP_READ)) {
/* Unsupported format, release CSP */
csp->ops.csp_unuse(csp);
} else {
__start_CSP:
/* Try to start CSP */
if (csp->ops.csp_start(csp, (chip->mode & SB_MODE_CAPTURE_16) ?
SNDRV_SB_CSP_SAMPLE_16BIT : SNDRV_SB_CSP_SAMPLE_8BIT,
(runtime->channels > 1) ?
SNDRV_SB_CSP_STEREO : SNDRV_SB_CSP_MONO)) {
/* Failed, release CSP */
csp->ops.csp_unuse(csp);
} else {
/* Success, CSP acquired and running */
chip->open = SNDRV_SB_CSP_MODE_DSP_READ;
}
}
}
}
}
static void snd_sb16_csp_update(struct snd_sb *chip)
{
if (chip->hardware == SB_HW_16CSP) {
struct snd_sb_csp *csp = chip->csp;
if (csp->qpos_changed) {
spin_lock(&chip->reg_lock);
csp->ops.csp_qsound_transfer (csp);
spin_unlock(&chip->reg_lock);
}
}
}
static void snd_sb16_csp_playback_open(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
{
/* CSP decoders (QSound excluded) support only 16bit transfers */
if (chip->hardware == SB_HW_16CSP) {
struct snd_sb_csp *csp = chip->csp;
if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
/* manually loaded codec */
if (csp->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) {
runtime->hw.formats |= csp->acc_format;
}
} else {
/* autoloaded codecs */
runtime->hw.formats |= SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
SNDRV_PCM_FMTBIT_IMA_ADPCM;
}
}
}
static void snd_sb16_csp_playback_close(struct snd_sb *chip)
{
if ((chip->hardware == SB_HW_16CSP) && (chip->open == SNDRV_SB_CSP_MODE_DSP_WRITE)) {
struct snd_sb_csp *csp = chip->csp;
if (csp->ops.csp_stop(csp) == 0) {
csp->ops.csp_unuse(csp);
chip->open = 0;
}
}
}
static void snd_sb16_csp_capture_open(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
{
/* CSP coders support only 16bit transfers */
if (chip->hardware == SB_HW_16CSP) {
struct snd_sb_csp *csp = chip->csp;
if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
/* manually loaded codec */
if (csp->mode & SNDRV_SB_CSP_MODE_DSP_READ) {
runtime->hw.formats |= csp->acc_format;
}
} else {
/* autoloaded codecs */
runtime->hw.formats |= SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
SNDRV_PCM_FMTBIT_IMA_ADPCM;
}
}
}
static void snd_sb16_csp_capture_close(struct snd_sb *chip)
{
if ((chip->hardware == SB_HW_16CSP) && (chip->open == SNDRV_SB_CSP_MODE_DSP_READ)) {
struct snd_sb_csp *csp = chip->csp;
if (csp->ops.csp_stop(csp) == 0) {
csp->ops.csp_unuse(csp);
chip->open = 0;
}
}
}
#else
#define snd_sb16_csp_playback_prepare(chip, runtime) /*nop*/
#define snd_sb16_csp_capture_prepare(chip, runtime) /*nop*/
#define snd_sb16_csp_update(chip) /*nop*/
#define snd_sb16_csp_playback_open(chip, runtime) /*nop*/
#define snd_sb16_csp_playback_close(chip) /*nop*/
#define snd_sb16_csp_capture_open(chip, runtime) /*nop*/
#define snd_sb16_csp_capture_close(chip) /*nop*/
#endif
static void snd_sb16_setup_rate(struct snd_sb *chip,
unsigned short rate,
int channel)
{
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
if (chip->mode & (channel == SNDRV_PCM_STREAM_PLAYBACK ? SB_MODE_PLAYBACK_16 : SB_MODE_CAPTURE_16))
snd_sb_ack_16bit(chip);
else
snd_sb_ack_8bit(chip);
if (!(chip->mode & SB_RATE_LOCK)) {
chip->locked_rate = rate;
snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_IN);
snd_sbdsp_command(chip, rate >> 8);
snd_sbdsp_command(chip, rate & 0xff);
snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
snd_sbdsp_command(chip, rate >> 8);
snd_sbdsp_command(chip, rate & 0xff);
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static int snd_sb16_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_sb16_hw_free(struct snd_pcm_substream *substream)
{
snd_pcm_lib_free_pages(substream);
return 0;
}
static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned char format;
unsigned int size, count, dma;
snd_sb16_csp_playback_prepare(chip, runtime);
if (snd_pcm_format_unsigned(runtime->format) > 0) {
format = runtime->channels > 1 ? SB_DSP4_MODE_UNS_STEREO : SB_DSP4_MODE_UNS_MONO;
} else {
format = runtime->channels > 1 ? SB_DSP4_MODE_SIGN_STEREO : SB_DSP4_MODE_SIGN_MONO;
}
snd_sb16_setup_rate(chip, runtime->rate, SNDRV_PCM_STREAM_PLAYBACK);
size = chip->p_dma_size = snd_pcm_lib_buffer_bytes(substream);
dma = (chip->mode & SB_MODE_PLAYBACK_8) ? chip->dma8 : chip->dma16;
snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
count = snd_pcm_lib_period_bytes(substream);
spin_lock_irqsave(&chip->reg_lock, flags);
if (chip->mode & SB_MODE_PLAYBACK_16) {
count >>= 1;
count--;
snd_sbdsp_command(chip, SB_DSP4_OUT16_AI);
snd_sbdsp_command(chip, format);
snd_sbdsp_command(chip, count & 0xff);
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
} else {
count--;
snd_sbdsp_command(chip, SB_DSP4_OUT8_AI);
snd_sbdsp_command(chip, format);
snd_sbdsp_command(chip, count & 0xff);
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
int result = 0;
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
chip->mode |= SB_RATE_LOCK_PLAYBACK;
snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);
/* next two lines are needed for some types of DSP4 (SB AWE 32 - 4.13) */
if (chip->mode & SB_RATE_LOCK_CAPTURE)
snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
break;
default:
result = -EINVAL;
}
spin_unlock(&chip->reg_lock);
return result;
}
static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned char format;
unsigned int size, count, dma;
snd_sb16_csp_capture_prepare(chip, runtime);
if (snd_pcm_format_unsigned(runtime->format) > 0) {
format = runtime->channels > 1 ? SB_DSP4_MODE_UNS_STEREO : SB_DSP4_MODE_UNS_MONO;
} else {
format = runtime->channels > 1 ? SB_DSP4_MODE_SIGN_STEREO : SB_DSP4_MODE_SIGN_MONO;
}
snd_sb16_setup_rate(chip, runtime->rate, SNDRV_PCM_STREAM_CAPTURE);
size = chip->c_dma_size = snd_pcm_lib_buffer_bytes(substream);
dma = (chip->mode & SB_MODE_CAPTURE_8) ? chip->dma8 : chip->dma16;
snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
count = snd_pcm_lib_period_bytes(substream);
spin_lock_irqsave(&chip->reg_lock, flags);
if (chip->mode & SB_MODE_CAPTURE_16) {
count >>= 1;
count--;
snd_sbdsp_command(chip, SB_DSP4_IN16_AI);
snd_sbdsp_command(chip, format);
snd_sbdsp_command(chip, count & 0xff);
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
} else {
count--;
snd_sbdsp_command(chip, SB_DSP4_IN8_AI);
snd_sbdsp_command(chip, format);
snd_sbdsp_command(chip, count & 0xff);
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
int result = 0;
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
chip->mode |= SB_RATE_LOCK_CAPTURE;
snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);
/* next two lines are needed for some types of DSP4 (SB AWE 32 - 4.13) */
if (chip->mode & SB_RATE_LOCK_PLAYBACK)
snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
chip->mode &= ~SB_RATE_LOCK_CAPTURE;
break;
default:
result = -EINVAL;
}
spin_unlock(&chip->reg_lock);
return result;
}
irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
{
struct snd_sb *chip = dev_id;
unsigned char status;
int ok;
spin_lock(&chip->mixer_lock);
status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
spin_unlock(&chip->mixer_lock);
if ((status & SB_IRQTYPE_MPUIN) && chip->rmidi_callback)
chip->rmidi_callback(irq, chip->rmidi->private_data);
if (status & SB_IRQTYPE_8BIT) {
ok = 0;
if (chip->mode & SB_MODE_PLAYBACK_8) {
snd_pcm_period_elapsed(chip->playback_substream);
snd_sb16_csp_update(chip);
ok++;
}
if (chip->mode & SB_MODE_CAPTURE_8) {
snd_pcm_period_elapsed(chip->capture_substream);
ok++;
}
spin_lock(&chip->reg_lock);
if (!ok)
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
snd_sb_ack_8bit(chip);
spin_unlock(&chip->reg_lock);
}
if (status & SB_IRQTYPE_16BIT) {
ok = 0;
if (chip->mode & SB_MODE_PLAYBACK_16) {
snd_pcm_period_elapsed(chip->playback_substream);
snd_sb16_csp_update(chip);
ok++;
}
if (chip->mode & SB_MODE_CAPTURE_16) {
snd_pcm_period_elapsed(chip->capture_substream);
ok++;
}
spin_lock(&chip->reg_lock);
if (!ok)
snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
snd_sb_ack_16bit(chip);
spin_unlock(&chip->reg_lock);
}
return IRQ_HANDLED;
}
/*
*/
static snd_pcm_uframes_t snd_sb16_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
unsigned int dma;
size_t ptr;
dma = (chip->mode & SB_MODE_PLAYBACK_8) ? chip->dma8 : chip->dma16;
ptr = snd_dma_pointer(dma, chip->p_dma_size);
return bytes_to_frames(substream->runtime, ptr);
}
static snd_pcm_uframes_t snd_sb16_capture_pointer(struct snd_pcm_substream *substream)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
unsigned int dma;
size_t ptr;
dma = (chip->mode & SB_MODE_CAPTURE_8) ? chip->dma8 : chip->dma16;
ptr = snd_dma_pointer(dma, chip->c_dma_size);
return bytes_to_frames(substream->runtime, ptr);
}
/*
*/
static const struct snd_pcm_hardware snd_sb16_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = 0,
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
.rate_min = 4000,
.rate_max = 44100,
.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,
};
static const struct snd_pcm_hardware snd_sb16_capture =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = 0,
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
.rate_min = 4000,
.rate_max = 44100,
.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,
};
/*
* open/close
*/
static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
spin_lock_irqsave(&chip->open_lock, flags);
if (chip->mode & SB_MODE_PLAYBACK) {
spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
}
runtime->hw = snd_sb16_playback;
/* skip if 16 bit DMA was reserved for capture */
if (chip->force_mode16 & SB_MODE_CAPTURE_16)
goto __skip_16bit;
if (chip->dma16 >= 0 && !(chip->mode & SB_MODE_CAPTURE_16)) {
chip->mode |= SB_MODE_PLAYBACK_16;
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
/* Vibra16X hack */
if (chip->dma16 <= 3) {
runtime->hw.buffer_bytes_max =
runtime->hw.period_bytes_max = 64 * 1024;
} else {
snd_sb16_csp_playback_open(chip, runtime);
}
goto __open_ok;
}
__skip_16bit:
if (chip->dma8 >= 0 && !(chip->mode & SB_MODE_CAPTURE_8)) {
chip->mode |= SB_MODE_PLAYBACK_8;
/* DSP v 4.xx can transfer 16bit data through 8bit DMA channel, SBHWPG 2-7 */
if (chip->dma16 < 0) {
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
chip->mode |= SB_MODE_PLAYBACK_16;
} else {
runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8;
}
runtime->hw.buffer_bytes_max =
runtime->hw.period_bytes_max = 64 * 1024;
goto __open_ok;
}
spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
__open_ok:
if (chip->hardware == SB_HW_ALS100)
runtime->hw.rate_max = 48000;
if (chip->hardware == SB_HW_CS5530) {
runtime->hw.buffer_bytes_max = 32 * 1024;
runtime->hw.periods_min = 2;
runtime->hw.rate_min = 44100;
}
if (chip->mode & SB_RATE_LOCK)
runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
chip->playback_substream = substream;
spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_playback_close(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
snd_sb16_csp_playback_close(chip);
spin_lock_irqsave(&chip->open_lock, flags);
chip->playback_substream = NULL;
chip->mode &= ~SB_MODE_PLAYBACK;
spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
spin_lock_irqsave(&chip->open_lock, flags);
if (chip->mode & SB_MODE_CAPTURE) {
spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
}
runtime->hw = snd_sb16_capture;
/* skip if 16 bit DMA was reserved for playback */
if (chip->force_mode16 & SB_MODE_PLAYBACK_16)
goto __skip_16bit;
if (chip->dma16 >= 0 && !(chip->mode & SB_MODE_PLAYBACK_16)) {
chip->mode |= SB_MODE_CAPTURE_16;
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
/* Vibra16X hack */
if (chip->dma16 <= 3) {
runtime->hw.buffer_bytes_max =
runtime->hw.period_bytes_max = 64 * 1024;
} else {
snd_sb16_csp_capture_open(chip, runtime);
}
goto __open_ok;
}
__skip_16bit:
if (chip->dma8 >= 0 && !(chip->mode & SB_MODE_PLAYBACK_8)) {
chip->mode |= SB_MODE_CAPTURE_8;
/* DSP v 4.xx can transfer 16bit data through 8bit DMA channel, SBHWPG 2-7 */
if (chip->dma16 < 0) {
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
chip->mode |= SB_MODE_CAPTURE_16;
} else {
runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8;
}
runtime->hw.buffer_bytes_max =
runtime->hw.period_bytes_max = 64 * 1024;
goto __open_ok;
}
spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
__open_ok:
if (chip->hardware == SB_HW_ALS100)
runtime->hw.rate_max = 48000;
if (chip->hardware == SB_HW_CS5530) {
runtime->hw.buffer_bytes_max = 32 * 1024;
runtime->hw.periods_min = 2;
runtime->hw.rate_min = 44100;
}
if (chip->mode & SB_RATE_LOCK)
runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
chip->capture_substream = substream;
spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_capture_close(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
snd_sb16_csp_capture_close(chip);
spin_lock_irqsave(&chip->open_lock, flags);
chip->capture_substream = NULL;
chip->mode &= ~SB_MODE_CAPTURE;
spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
/*
* DMA control interface
*/
static int snd_sb16_set_dma_mode(struct snd_sb *chip, int what)
{
if (chip->dma8 < 0 || chip->dma16 < 0) {
if (snd_BUG_ON(what))
return -EINVAL;
return 0;
}
if (what == 0) {
chip->force_mode16 = 0;
} else if (what == 1) {
chip->force_mode16 = SB_MODE_PLAYBACK_16;
} else if (what == 2) {
chip->force_mode16 = SB_MODE_CAPTURE_16;
} else {
return -EINVAL;
}
return 0;
}
static int snd_sb16_get_dma_mode(struct snd_sb *chip)
{
if (chip->dma8 < 0 || chip->dma16 < 0)
return 0;
switch (chip->force_mode16) {
case SB_MODE_PLAYBACK_16:
return 1;
case SB_MODE_CAPTURE_16:
return 2;
default:
return 0;
}
}
static int snd_sb16_dma_control_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
static const char * const texts[3] = {
"Auto", "Playback", "Capture"
};
return snd_ctl_enum_info(uinfo, 1, 3, texts);
}
static int snd_sb16_dma_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
ucontrol->value.enumerated.item[0] = snd_sb16_get_dma_mode(chip);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
unsigned char nval, oval;
int change;
if ((nval = ucontrol->value.enumerated.item[0]) > 2)
return -EINVAL;
spin_lock_irqsave(&chip->reg_lock, flags);
oval = snd_sb16_get_dma_mode(chip);
change = nval != oval;
snd_sb16_set_dma_mode(chip, nval);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return change;
}
static const struct snd_kcontrol_new snd_sb16_dma_control = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "16-bit DMA Allocation",
.info = snd_sb16_dma_control_info,
.get = snd_sb16_dma_control_get,
.put = snd_sb16_dma_control_put
};
/*
* Initialization part
*/
int snd_sb16dsp_configure(struct snd_sb * chip)
{
unsigned long flags;
unsigned char irqreg = 0, dmareg = 0, mpureg;
unsigned char realirq, realdma, realmpureg;
/* note: mpu register should be present only on SB16 Vibra soundcards */
// printk(KERN_DEBUG "codec->irq=%i, codec->dma8=%i, codec->dma16=%i\n", chip->irq, chip->dma8, chip->dma16);
spin_lock_irqsave(&chip->mixer_lock, flags);
mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06;
spin_unlock_irqrestore(&chip->mixer_lock, flags);
switch (chip->irq) {
case 2:
case 9:
irqreg |= SB_IRQSETUP_IRQ9;
break;
case 5:
irqreg |= SB_IRQSETUP_IRQ5;
break;
case 7:
irqreg |= SB_IRQSETUP_IRQ7;
break;
case 10:
irqreg |= SB_IRQSETUP_IRQ10;
break;
default:
return -EINVAL;
}
if (chip->dma8 >= 0) {
switch (chip->dma8) {
case 0:
dmareg |= SB_DMASETUP_DMA0;
break;
case 1:
dmareg |= SB_DMASETUP_DMA1;
break;
case 3:
dmareg |= SB_DMASETUP_DMA3;
break;
default:
return -EINVAL;
}
}
if (chip->dma16 >= 0 && chip->dma16 != chip->dma8) {
switch (chip->dma16) {
case 5:
dmareg |= SB_DMASETUP_DMA5;
break;
case 6:
dmareg |= SB_DMASETUP_DMA6;
break;
case 7:
dmareg |= SB_DMASETUP_DMA7;
break;
default:
return -EINVAL;
}
}
switch (chip->mpu_port) {
case 0x300:
mpureg |= 0x04;
break;
case 0x330:
mpureg |= 0x00;
break;
default:
mpureg |= 0x02; /* disable MPU */
}
spin_lock_irqsave(&chip->mixer_lock, flags);
snd_sbmixer_write(chip, SB_DSP4_IRQSETUP, irqreg);
realirq = snd_sbmixer_read(chip, SB_DSP4_IRQSETUP);
snd_sbmixer_write(chip, SB_DSP4_DMASETUP, dmareg);
realdma = snd_sbmixer_read(chip, SB_DSP4_DMASETUP);
snd_sbmixer_write(chip, SB_DSP4_MPUSETUP, mpureg);
realmpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP);
spin_unlock_irqrestore(&chip->mixer_lock, flags);
if ((~realirq) & irqreg || (~realdma) & dmareg) {
snd_printk(KERN_ERR "SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n", chip->port);
snd_printk(KERN_ERR "SB16 [0x%lx]: wanted: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, realirq, realdma, realmpureg);
snd_printk(KERN_ERR "SB16 [0x%lx]: got: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, irqreg, dmareg, mpureg);
return -ENODEV;
}
return 0;
}
static const struct snd_pcm_ops snd_sb16_playback_ops = {
.open = snd_sb16_playback_open,
.close = snd_sb16_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_sb16_hw_params,
.hw_free = snd_sb16_hw_free,
.prepare = snd_sb16_playback_prepare,
.trigger = snd_sb16_playback_trigger,
.pointer = snd_sb16_playback_pointer,
};
static const struct snd_pcm_ops snd_sb16_capture_ops = {
.open = snd_sb16_capture_open,
.close = snd_sb16_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_sb16_hw_params,
.hw_free = snd_sb16_hw_free,
.prepare = snd_sb16_capture_prepare,
.trigger = snd_sb16_capture_trigger,
.pointer = snd_sb16_capture_pointer,
};
int snd_sb16dsp_pcm(struct snd_sb *chip, int device)
{
struct snd_card *card = chip->card;
struct snd_pcm *pcm;
int err;
if ((err = snd_pcm_new(card, "SB16 DSP", device, 1, 1, &pcm)) < 0)
return err;
sprintf(pcm->name, "DSP v%i.%i", chip->version >> 8, chip->version & 0xff);
pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
pcm->private_data = chip;
chip->pcm = pcm;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sb16_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sb16_capture_ops);
if (chip->dma16 >= 0 && chip->dma8 != chip->dma16) {
err = snd_ctl_add(card, snd_ctl_new1(
&snd_sb16_dma_control, chip));
if (err)
return err;
} else {
pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
}
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
card->dev,
64*1024, 128*1024);
return 0;
}
const struct snd_pcm_ops *snd_sb16dsp_get_pcm_ops(int direction)
{
return direction == SNDRV_PCM_STREAM_PLAYBACK ?
&snd_sb16_playback_ops : &snd_sb16_capture_ops;
}
EXPORT_SYMBOL(snd_sb16dsp_pcm);
EXPORT_SYMBOL(snd_sb16dsp_get_pcm_ops);
EXPORT_SYMBOL(snd_sb16dsp_configure);
EXPORT_SYMBOL(snd_sb16dsp_interrupt);
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