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ALSA: Remove deprecated AU1X00 AC97 driver

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The AU1X00 AC97 ALSA driver was deprecated in commit 7137c6bcb7 ("ALSA:
deprecate MIPS AU1X00 AC97 driver") in favor of the newer and better ASoC
driver for the same hardware. This was almost 5 years ago and this driver
has not been in use in the mainline kernel since, it should be safe to
remove it at this point.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Lars-Peter Clausen 2016-02-06 11:25:49 +01:00 committed by Takashi Iwai
parent c9e9daccc7
commit efd931d6c7
3 changed files with 0 additions and 748 deletions
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12
sound/mips/Kconfig
View File

@ -23,17 +23,5 @@ config SND_SGI_HAL2
help
Sound support for the SGI Indy and Indigo2 Workstation.
config SND_AU1X00
tristate "Au1x00 AC97 Port Driver (DEPRECATED)"
depends on MIPS_ALCHEMY
select SND_PCM
select SND_AC97_CODEC
help
ALSA Sound driver for the Au1x00's AC97 port.
Newer drivers for ASoC are available, please do not use
this driver as it will be removed in the future.
endif # SND_MIPS

2
sound/mips/Makefile
View File

@ -2,11 +2,9 @@
# Makefile for ALSA
#
snd-au1x00-objs := au1x00.o
snd-sgi-o2-objs := sgio2audio.o ad1843.o
snd-sgi-hal2-objs := hal2.o
# Toplevel Module Dependency
obj-$(CONFIG_SND_AU1X00) += snd-au1x00.o
obj-$(CONFIG_SND_SGI_O2) += snd-sgi-o2.o
obj-$(CONFIG_SND_SGI_HAL2) += snd-sgi-hal2.o

734
sound/mips/au1x00.c
View File

@ -1,734 +0,0 @@
/*
* BRIEF MODULE DESCRIPTION
* Driver for AMD Au1000 MIPS Processor, AC'97 Sound Port
*
* Copyright 2004 Cooper Street Innovations Inc.
* Author: Charles Eidsness <charles@cooper-street.com>
*
* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
* History:
*
* 2004-09-09 Charles Eidsness -- Original verion -- based on
* sa11xx-uda1341.c ALSA driver and the
* au1000.c OSS driver.
* 2004-09-09 Matt Porter -- Added support for ALSA 1.0.6
*
*/
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/ac97_codec.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/au1000_dma.h>
MODULE_AUTHOR("Charles Eidsness <charles@cooper-street.com>");
MODULE_DESCRIPTION("Au1000 AC'97 ALSA Driver");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{AMD,Au1000 AC'97}}");
#define PLAYBACK 0
#define CAPTURE 1
#define AC97_SLOT_3 0x01
#define AC97_SLOT_4 0x02
#define AC97_SLOT_6 0x08
#define AC97_CMD_IRQ 31
#define READ 0
#define WRITE 1
#define READ_WAIT 2
#define RW_DONE 3
struct au1000_period
{
u32 start;
u32 relative_end; /*realtive to start of buffer*/
struct au1000_period * next;
};
/*Au1000 AC97 Port Control Reisters*/
struct au1000_ac97_reg {
u32 volatile config;
u32 volatile status;
u32 volatile data;
u32 volatile cmd;
u32 volatile cntrl;
};
struct audio_stream {
struct snd_pcm_substream *substream;
int dma;
spinlock_t dma_lock;
struct au1000_period * buffer;
unsigned int period_size;
unsigned int periods;
};
struct snd_au1000 {
struct snd_card *card;
struct au1000_ac97_reg volatile *ac97_ioport;
struct resource *ac97_res_port;
spinlock_t ac97_lock;
struct snd_ac97 *ac97;
struct snd_pcm *pcm;
struct audio_stream *stream[2]; /* playback & capture */
int dmaid[2]; /* tx(0)/rx(1) DMA ids */
};
/*--------------------------- Local Functions --------------------------------*/
static void
au1000_set_ac97_xmit_slots(struct snd_au1000 *au1000, long xmit_slots)
{
u32 volatile ac97_config;
spin_lock(&au1000->ac97_lock);
ac97_config = au1000->ac97_ioport->config;
ac97_config = ac97_config & ~AC97C_XMIT_SLOTS_MASK;
ac97_config |= (xmit_slots << AC97C_XMIT_SLOTS_BIT);
au1000->ac97_ioport->config = ac97_config;
spin_unlock(&au1000->ac97_lock);
}
static void
au1000_set_ac97_recv_slots(struct snd_au1000 *au1000, long recv_slots)
{
u32 volatile ac97_config;
spin_lock(&au1000->ac97_lock);
ac97_config = au1000->ac97_ioport->config;
ac97_config = ac97_config & ~AC97C_RECV_SLOTS_MASK;
ac97_config |= (recv_slots << AC97C_RECV_SLOTS_BIT);
au1000->ac97_ioport->config = ac97_config;
spin_unlock(&au1000->ac97_lock);
}
static void
au1000_release_dma_link(struct audio_stream *stream)
{
struct au1000_period * pointer;
struct au1000_period * pointer_next;
stream->period_size = 0;
stream->periods = 0;
pointer = stream->buffer;
if (! pointer)
return;
do {
pointer_next = pointer->next;
kfree(pointer);
pointer = pointer_next;
} while (pointer != stream->buffer);
stream->buffer = NULL;
}
static int
au1000_setup_dma_link(struct audio_stream *stream, unsigned int period_bytes,
unsigned int periods)
{
struct snd_pcm_substream *substream = stream->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
struct au1000_period *pointer;
unsigned long dma_start;
int i;
dma_start = virt_to_phys(runtime->dma_area);
if (stream->period_size == period_bytes &&
stream->periods == periods)
return 0; /* not changed */
au1000_release_dma_link(stream);
stream->period_size = period_bytes;
stream->periods = periods;
stream->buffer = kmalloc(sizeof(struct au1000_period), GFP_KERNEL);
if (! stream->buffer)
return -ENOMEM;
pointer = stream->buffer;
for (i = 0; i < periods; i++) {
pointer->start = (u32)(dma_start + (i * period_bytes));
pointer->relative_end = (u32) (((i+1) * period_bytes) - 0x1);
if (i < periods - 1) {
pointer->next = kmalloc(sizeof(struct au1000_period), GFP_KERNEL);
if (! pointer->next) {
au1000_release_dma_link(stream);
return -ENOMEM;
}
pointer = pointer->next;
}
}
pointer->next = stream->buffer;
return 0;
}
static void
au1000_dma_stop(struct audio_stream *stream)
{
if (snd_BUG_ON(!stream->buffer))
return;
disable_dma(stream->dma);
}
static void
au1000_dma_start(struct audio_stream *stream)
{
if (snd_BUG_ON(!stream->buffer))
return;
init_dma(stream->dma);
if (get_dma_active_buffer(stream->dma) == 0) {
clear_dma_done0(stream->dma);
set_dma_addr0(stream->dma, stream->buffer->start);
set_dma_count0(stream->dma, stream->period_size >> 1);
set_dma_addr1(stream->dma, stream->buffer->next->start);
set_dma_count1(stream->dma, stream->period_size >> 1);
} else {
clear_dma_done1(stream->dma);
set_dma_addr1(stream->dma, stream->buffer->start);
set_dma_count1(stream->dma, stream->period_size >> 1);
set_dma_addr0(stream->dma, stream->buffer->next->start);
set_dma_count0(stream->dma, stream->period_size >> 1);
}
enable_dma_buffers(stream->dma);
start_dma(stream->dma);
}
static irqreturn_t
au1000_dma_interrupt(int irq, void *dev_id)
{
struct audio_stream *stream = (struct audio_stream *) dev_id;
struct snd_pcm_substream *substream = stream->substream;
spin_lock(&stream->dma_lock);
switch (get_dma_buffer_done(stream->dma)) {
case DMA_D0:
stream->buffer = stream->buffer->next;
clear_dma_done0(stream->dma);
set_dma_addr0(stream->dma, stream->buffer->next->start);
set_dma_count0(stream->dma, stream->period_size >> 1);
enable_dma_buffer0(stream->dma);
break;
case DMA_D1:
stream->buffer = stream->buffer->next;
clear_dma_done1(stream->dma);
set_dma_addr1(stream->dma, stream->buffer->next->start);
set_dma_count1(stream->dma, stream->period_size >> 1);
enable_dma_buffer1(stream->dma);
break;
case (DMA_D0 | DMA_D1):
printk(KERN_ERR "DMA %d missed interrupt.\n",stream->dma);
au1000_dma_stop(stream);
au1000_dma_start(stream);
break;
case (~DMA_D0 & ~DMA_D1):
printk(KERN_ERR "DMA %d empty irq.\n",stream->dma);
}
spin_unlock(&stream->dma_lock);
snd_pcm_period_elapsed(substream);
return IRQ_HANDLED;
}
/*-------------------------- PCM Audio Streams -------------------------------*/
static unsigned int rates[] = {8000, 11025, 16000, 22050};
static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
static struct snd_pcm_hardware snd_au1000_hw =
{
.info = (SNDRV_PCM_INFO_INTERLEAVED | \
SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050),
.rate_min = 8000,
.rate_max = 22050,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = 128*1024,
.period_bytes_min = 32,
.period_bytes_max = 16*1024,
.periods_min = 8,
.periods_max = 255,
.fifo_size = 16,
};
static int
snd_au1000_playback_open(struct snd_pcm_substream *substream)
{
struct snd_au1000 *au1000 = substream->pcm->private_data;
au1000->stream[PLAYBACK]->substream = substream;
au1000->stream[PLAYBACK]->buffer = NULL;
substream->private_data = au1000->stream[PLAYBACK];
substream->runtime->hw = snd_au1000_hw;
return (snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates) < 0);
}
static int
snd_au1000_capture_open(struct snd_pcm_substream *substream)
{
struct snd_au1000 *au1000 = substream->pcm->private_data;
au1000->stream[CAPTURE]->substream = substream;
au1000->stream[CAPTURE]->buffer = NULL;
substream->private_data = au1000->stream[CAPTURE];
substream->runtime->hw = snd_au1000_hw;
return (snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates) < 0);
}
static int
snd_au1000_playback_close(struct snd_pcm_substream *substream)
{
struct snd_au1000 *au1000 = substream->pcm->private_data;
au1000->stream[PLAYBACK]->substream = NULL;
return 0;
}
static int
snd_au1000_capture_close(struct snd_pcm_substream *substream)
{
struct snd_au1000 *au1000 = substream->pcm->private_data;
au1000->stream[CAPTURE]->substream = NULL;
return 0;
}
static int
snd_au1000_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct audio_stream *stream = substream->private_data;
int err;
err = snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
if (err < 0)
return err;
return au1000_setup_dma_link(stream,
params_period_bytes(hw_params),
params_periods(hw_params));
}
static int
snd_au1000_hw_free(struct snd_pcm_substream *substream)
{
struct audio_stream *stream = substream->private_data;
au1000_release_dma_link(stream);
return snd_pcm_lib_free_pages(substream);
}
static int
snd_au1000_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_au1000 *au1000 = substream->pcm->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->channels == 1)
au1000_set_ac97_xmit_slots(au1000, AC97_SLOT_4);
else
au1000_set_ac97_xmit_slots(au1000, AC97_SLOT_3 | AC97_SLOT_4);
snd_ac97_set_rate(au1000->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
return 0;
}
static int
snd_au1000_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_au1000 *au1000 = substream->pcm->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->channels == 1)
au1000_set_ac97_recv_slots(au1000, AC97_SLOT_4);
else
au1000_set_ac97_recv_slots(au1000, AC97_SLOT_3 | AC97_SLOT_4);
snd_ac97_set_rate(au1000->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
return 0;
}
static int
snd_au1000_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct audio_stream *stream = substream->private_data;
int err = 0;
spin_lock(&stream->dma_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
au1000_dma_start(stream);
break;
case SNDRV_PCM_TRIGGER_STOP:
au1000_dma_stop(stream);
break;
default:
err = -EINVAL;
break;
}
spin_unlock(&stream->dma_lock);
return err;
}
static snd_pcm_uframes_t
snd_au1000_pointer(struct snd_pcm_substream *substream)
{
struct audio_stream *stream = substream->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
long location;
spin_lock(&stream->dma_lock);
location = get_dma_residue(stream->dma);
spin_unlock(&stream->dma_lock);
location = stream->buffer->relative_end - location;
if (location == -1)
location = 0;
return bytes_to_frames(runtime,location);
}
static struct snd_pcm_ops snd_card_au1000_playback_ops = {
.open = snd_au1000_playback_open,
.close = snd_au1000_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_au1000_hw_params,
.hw_free = snd_au1000_hw_free,
.prepare = snd_au1000_playback_prepare,
.trigger = snd_au1000_trigger,
.pointer = snd_au1000_pointer,
};
static struct snd_pcm_ops snd_card_au1000_capture_ops = {
.open = snd_au1000_capture_open,
.close = snd_au1000_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_au1000_hw_params,
.hw_free = snd_au1000_hw_free,
.prepare = snd_au1000_capture_prepare,
.trigger = snd_au1000_trigger,
.pointer = snd_au1000_pointer,
};
static int
snd_au1000_pcm_new(struct snd_au1000 *au1000)
{
struct snd_pcm *pcm;
int err;
unsigned long flags;
if ((err = snd_pcm_new(au1000->card, "AU1000 AC97 PCM", 0, 1, 1, &pcm)) < 0)
return err;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
snd_dma_continuous_data(GFP_KERNEL), 128*1024, 128*1024);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_card_au1000_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_card_au1000_capture_ops);
pcm->private_data = au1000;
pcm->info_flags = 0;
strcpy(pcm->name, "Au1000 AC97 PCM");
spin_lock_init(&au1000->stream[PLAYBACK]->dma_lock);
spin_lock_init(&au1000->stream[CAPTURE]->dma_lock);
flags = claim_dma_lock();
au1000->stream[PLAYBACK]->dma = request_au1000_dma(au1000->dmaid[0],
"AC97 TX", au1000_dma_interrupt, 0,
au1000->stream[PLAYBACK]);
if (au1000->stream[PLAYBACK]->dma < 0) {
release_dma_lock(flags);
return -EBUSY;
}
au1000->stream[CAPTURE]->dma = request_au1000_dma(au1000->dmaid[1],
"AC97 RX", au1000_dma_interrupt, 0,
au1000->stream[CAPTURE]);
if (au1000->stream[CAPTURE]->dma < 0){
release_dma_lock(flags);
return -EBUSY;
}
/* enable DMA coherency in read/write DMA channels */
set_dma_mode(au1000->stream[PLAYBACK]->dma,
get_dma_mode(au1000->stream[PLAYBACK]->dma) & ~DMA_NC);
set_dma_mode(au1000->stream[CAPTURE]->dma,
get_dma_mode(au1000->stream[CAPTURE]->dma) & ~DMA_NC);
release_dma_lock(flags);
au1000->pcm = pcm;
return 0;
}
/*-------------------------- AC97 CODEC Control ------------------------------*/
static unsigned short
snd_au1000_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
struct snd_au1000 *au1000 = ac97->private_data;
u32 volatile cmd;
u16 volatile data;
int i;
spin_lock(&au1000->ac97_lock);
/* would rather use the interrupt than this polling but it works and I can't
get the interrupt driven case to work efficiently */
for (i = 0; i < 0x5000; i++)
if (!(au1000->ac97_ioport->status & AC97C_CP))
break;
if (i == 0x5000)
printk(KERN_ERR "au1000 AC97: AC97 command read timeout\n");
cmd = (u32) reg & AC97C_INDEX_MASK;
cmd |= AC97C_READ;
au1000->ac97_ioport->cmd = cmd;
/* now wait for the data */
for (i = 0; i < 0x5000; i++)
if (!(au1000->ac97_ioport->status & AC97C_CP))
break;
if (i == 0x5000) {
printk(KERN_ERR "au1000 AC97: AC97 command read timeout\n");
spin_unlock(&au1000->ac97_lock);
return 0;
}
data = au1000->ac97_ioport->cmd & 0xffff;
spin_unlock(&au1000->ac97_lock);
return data;
}
static void
snd_au1000_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
{
struct snd_au1000 *au1000 = ac97->private_data;
u32 cmd;
int i;
spin_lock(&au1000->ac97_lock);
/* would rather use the interrupt than this polling but it works and I can't
get the interrupt driven case to work efficiently */
for (i = 0; i < 0x5000; i++)
if (!(au1000->ac97_ioport->status & AC97C_CP))
break;
if (i == 0x5000)
printk(KERN_ERR "au1000 AC97: AC97 command write timeout\n");
cmd = (u32) reg & AC97C_INDEX_MASK;
cmd &= ~AC97C_READ;
cmd |= ((u32) val << AC97C_WD_BIT);
au1000->ac97_ioport->cmd = cmd;
spin_unlock(&au1000->ac97_lock);
}
/*------------------------------ Setup / Destroy ----------------------------*/
static void snd_au1000_free(struct snd_card *card)
{
struct snd_au1000 *au1000 = card->private_data;
if (au1000->stream[PLAYBACK]) {
if (au1000->stream[PLAYBACK]->dma >= 0)
free_au1000_dma(au1000->stream[PLAYBACK]->dma);
kfree(au1000->stream[PLAYBACK]);
}
if (au1000->stream[CAPTURE]) {
if (au1000->stream[CAPTURE]->dma >= 0)
free_au1000_dma(au1000->stream[CAPTURE]->dma);
kfree(au1000->stream[CAPTURE]);
}
if (au1000->ac97_res_port) {
/* put internal AC97 block into reset */
if (au1000->ac97_ioport) {
au1000->ac97_ioport->cntrl = AC97C_RS;
iounmap(au1000->ac97_ioport);
au1000->ac97_ioport = NULL;
}
release_and_free_resource(au1000->ac97_res_port);
au1000->ac97_res_port = NULL;
}
}
static struct snd_ac97_bus_ops ops = {
.write = snd_au1000_ac97_write,
.read = snd_au1000_ac97_read,
};
static int au1000_ac97_probe(struct platform_device *pdev)
{
int err;
void __iomem *io;
struct resource *r;
struct snd_card *card;
struct snd_au1000 *au1000;
struct snd_ac97_bus *pbus;
struct snd_ac97_template ac97;
err = snd_card_new(&pdev->dev, -1, "AC97", THIS_MODULE,
sizeof(struct snd_au1000), &card);
if (err < 0)
return err;
au1000 = card->private_data;
au1000->card = card;
spin_lock_init(&au1000->ac97_lock);
/* from here on let ALSA call the special freeing function */
card->private_free = snd_au1000_free;
/* TX DMA ID */
r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!r) {
err = -ENODEV;
snd_printk(KERN_INFO "no TX DMA platform resource!\n");
goto out;
}
au1000->dmaid[0] = r->start;
/* RX DMA ID */
r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!r) {
err = -ENODEV;
snd_printk(KERN_INFO "no RX DMA platform resource!\n");
goto out;
}
au1000->dmaid[1] = r->start;
au1000->stream[PLAYBACK] = kmalloc(sizeof(struct audio_stream),
GFP_KERNEL);
if (!au1000->stream[PLAYBACK]) {
err = -ENOMEM;
goto out;
}
au1000->stream[PLAYBACK]->dma = -1;
au1000->stream[CAPTURE] = kmalloc(sizeof(struct audio_stream),
GFP_KERNEL);
if (!au1000->stream[CAPTURE]) {
err = -ENOMEM;
goto out;
}
au1000->stream[CAPTURE]->dma = -1;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
err = -ENODEV;
goto out;
}
err = -EBUSY;
au1000->ac97_res_port = request_mem_region(r->start, resource_size(r),
pdev->name);
if (!au1000->ac97_res_port) {
snd_printk(KERN_ERR "ALSA AC97: can't grab AC97 port\n");
goto out;
}
io = ioremap(r->start, resource_size(r));
if (!io)
goto out;
au1000->ac97_ioport = (struct au1000_ac97_reg *)io;
/* configure pins for AC'97
TODO: move to board_setup.c */
au_writel(au_readl(SYS_PINFUNC) & ~0x02, SYS_PINFUNC);
/* Initialise Au1000's AC'97 Control Block */
au1000->ac97_ioport->cntrl = AC97C_RS | AC97C_CE;
udelay(10);
au1000->ac97_ioport->cntrl = AC97C_CE;
udelay(10);
/* Initialise External CODEC -- cold reset */
au1000->ac97_ioport->config = AC97C_RESET;
udelay(10);
au1000->ac97_ioport->config = 0x0;
mdelay(5);
/* Initialise AC97 middle-layer */
err = snd_ac97_bus(au1000->card, 0, &ops, au1000, &pbus);
if (err < 0)
goto out;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = au1000;
err = snd_ac97_mixer(pbus, &ac97, &au1000->ac97);
if (err < 0)
goto out;
err = snd_au1000_pcm_new(au1000);
if (err < 0)
goto out;
strcpy(card->driver, "Au1000-AC97");
strcpy(card->shortname, "AMD Au1000-AC97");
sprintf(card->longname, "AMD Au1000--AC97 ALSA Driver");
err = snd_card_register(card);
if (err < 0)
goto out;
printk(KERN_INFO "ALSA AC97: Driver Initialized\n");
platform_set_drvdata(pdev, card);
return 0;
out:
snd_card_free(card);
return err;
}
static int au1000_ac97_remove(struct platform_device *pdev)
{
return snd_card_free(platform_get_drvdata(pdev));
}
struct platform_driver au1000_ac97c_driver = {
.driver = {
.name = "au1000-ac97c",
.owner = THIS_MODULE,
},
.probe = au1000_ac97_probe,
.remove = au1000_ac97_remove,
};
module_platform_driver(au1000_ac97c_driver);