On Sat, 06 Feb 2016 11:25:49 +0100,
Lars-Peter Clausen wrote:
>
> The AU1X00 AC97 ALSA driver was deprecated in commit 7137c6bcb7ff ("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@xxxxxxxxxx>
Applied, thanks.
Takashi
>
> diff --git a/sound/mips/Kconfig b/sound/mips/Kconfig
> index 2153d31..4a47050 100644
> --- a/sound/mips/Kconfig
> +++ b/sound/mips/Kconfig
> @@ -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
>
> diff --git a/sound/mips/Makefile b/sound/mips/Makefile
> index 861ec0a..b977c44 100644
> --- a/sound/mips/Makefile
> +++ b/sound/mips/Makefile
> @@ -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
> diff --git a/sound/mips/au1x00.c b/sound/mips/au1x00.c
> deleted file mode 100644
> index 1e30e84..0000000
> --- a/sound/mips/au1x00.c
> +++ /dev/null
> @@ -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@xxxxxxxxxxxxxxxxx>
> - *
> - * 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@xxxxxxxxxxxxxxxxx>");
> -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);
> --
> 2.1.4
>
>
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
