Resent with correct email for Mark.
In order to differentiate the different Intel SST audio core drivers we
need to rename the current drivers with a mfld prefix. This also includes
renaming in the Makefile and Kconfig
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
tristate "SOC Machine Audio driver for Intel Medfield MID platform"
depends on INTEL_SCU_IPC
select SND_SOC_SN95031
- select SND_SST_PLATFORM
+ select SND_SST_MFLD_PLATFORM
help
This adds support for ASoC machine driver for Intel(R) MID Medfield platform
used as alsa device in audio substem in Intel(R) MID devices
Say Y if you have such a device
If unsure select "N".
-config SND_SST_PLATFORM
+config SND_SST_MFLD_PLATFORM
tristate
-snd-soc-sst-platform-objs := sst_platform.o
+snd-soc-sst-mfld-platform-objs := sst-mfld-platform.o
snd-soc-mfld-machine-objs := mfld_machine.o
-obj-$(CONFIG_SND_SST_PLATFORM) += snd-soc-sst-platform.o
+obj-$(CONFIG_SND_SST_MFLD_PLATFORM) += snd-soc-sst-mfld-platform.o
obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o
--- /dev/null
+#ifndef __SST_MFLD_DSP_H__
+#define __SST_MFLD_DSP_H__
+/*
+ * sst_mfld_dsp.h - Intel SST Driver for audio engine
+ *
+ * Copyright (C) 2008-12 Intel Corporation
+ * Authors: Vinod Koul <vinod.koul@linux.intel.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; version 2 of the License.
+ *
+ * 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.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+enum sst_codec_types {
+ /* AUDIO/MUSIC CODEC Type Definitions */
+ SST_CODEC_TYPE_UNKNOWN = 0,
+ SST_CODEC_TYPE_PCM, /* Pass through Audio codec */
+ SST_CODEC_TYPE_MP3,
+ SST_CODEC_TYPE_MP24,
+ SST_CODEC_TYPE_AAC,
+ SST_CODEC_TYPE_AACP,
+ SST_CODEC_TYPE_eAACP,
+};
+
+enum stream_type {
+ SST_STREAM_TYPE_NONE = 0,
+ SST_STREAM_TYPE_MUSIC = 1,
+};
+
+struct snd_pcm_params {
+ u16 codec; /* codec type */
+ u8 num_chan; /* 1=Mono, 2=Stereo */
+ u8 pcm_wd_sz; /* 16/24 - bit*/
+ u32 reserved; /* Bitrate in bits per second */
+ u32 sfreq; /* Sampling rate in Hz */
+ u8 use_offload_path;
+ u8 reserved2;
+ u16 reserved3;
+ u8 channel_map[8];
+} __packed;
+
+/* MP3 Music Parameters Message */
+struct snd_mp3_params {
+ u16 codec;
+ u8 num_chan; /* 1=Mono, 2=Stereo */
+ u8 pcm_wd_sz; /* 16/24 - bit*/
+ u8 crc_check; /* crc_check - disable (0) or enable (1) */
+ u8 reserved1; /* unused*/
+ u16 reserved2; /* Unused */
+} __packed;
+
+#define AAC_BIT_STREAM_ADTS 0
+#define AAC_BIT_STREAM_ADIF 1
+#define AAC_BIT_STREAM_RAW 2
+
+/* AAC Music Parameters Message */
+struct snd_aac_params {
+ u16 codec;
+ u8 num_chan; /* 1=Mono, 2=Stereo*/
+ u8 pcm_wd_sz; /* 16/24 - bit*/
+ u8 bdownsample; /*SBR downsampling 0 - disable 1 -enabled AAC+ only */
+ u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
+ u16 reser2;
+ u32 externalsr; /*sampling rate of basic AAC raw bit stream*/
+ u8 sbr_signalling;/*disable/enable/set automode the SBR tool.AAC+*/
+ u8 reser1;
+ u16 reser3;
+} __packed;
+
+/* WMA Music Parameters Message */
+struct snd_wma_params {
+ u16 codec;
+ u8 num_chan; /* 1=Mono, 2=Stereo */
+ u8 pcm_wd_sz; /* 16/24 - bit*/
+ u32 brate; /* Use the hard coded value. */
+ u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
+ u32 channel_mask; /* Channel Mask */
+ u16 format_tag; /* Format Tag */
+ u16 block_align; /* packet size */
+ u16 wma_encode_opt;/* Encoder option */
+ u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB */
+ u8 reserved; /* reserved */
+} __packed;
+
+/* Codec params struture */
+union snd_sst_codec_params {
+ struct snd_pcm_params pcm_params;
+ struct snd_mp3_params mp3_params;
+ struct snd_aac_params aac_params;
+ struct snd_wma_params wma_params;
+} __packed;
+
+/* Address and size info of a frame buffer */
+struct sst_address_info {
+ u32 addr; /* Address at IA */
+ u32 size; /* Size of the buffer */
+};
+
+struct snd_sst_alloc_params_ext {
+ struct sst_address_info ring_buf_info[8];
+ u8 sg_count;
+ u8 reserved;
+ u16 reserved2;
+ u32 frag_size; /*Number of samples after which period elapsed
+ message is sent valid only if path = 0*/
+} __packed;
+
+struct snd_sst_stream_params {
+ union snd_sst_codec_params uc;
+} __packed;
+
+struct snd_sst_params {
+ u32 stream_id;
+ u8 codec;
+ u8 ops;
+ u8 stream_type;
+ u8 device_type;
+ struct snd_sst_stream_params sparams;
+ struct snd_sst_alloc_params_ext aparams;
+};
+
+#endif /* __SST_MFLD_DSP_H__ */
--- /dev/null
+/*
+ * sst_mfld_platform.c - Intel MID Platform driver
+ *
+ * Copyright (C) 2010-2013 Intel Corp
+ * Author: Vinod Koul <vinod.koul@intel.com>
+ * Author: Harsha Priya <priya.harsha@intel.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; version 2 of the License.
+ *
+ * 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.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/compress_driver.h>
+#include "sst-mfld-platform.h"
+
+static struct sst_device *sst;
+static DEFINE_MUTEX(sst_lock);
+
+int sst_register_dsp(struct sst_device *dev)
+{
+ if (WARN_ON(!dev))
+ return -EINVAL;
+ if (!try_module_get(dev->dev->driver->owner))
+ return -ENODEV;
+ mutex_lock(&sst_lock);
+ if (sst) {
+ pr_err("we already have a device %s\n", sst->name);
+ module_put(dev->dev->driver->owner);
+ mutex_unlock(&sst_lock);
+ return -EEXIST;
+ }
+ pr_debug("registering device %s\n", dev->name);
+ sst = dev;
+ mutex_unlock(&sst_lock);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(sst_register_dsp);
+
+int sst_unregister_dsp(struct sst_device *dev)
+{
+ if (WARN_ON(!dev))
+ return -EINVAL;
+ if (dev != sst)
+ return -EINVAL;
+
+ mutex_lock(&sst_lock);
+
+ if (!sst) {
+ mutex_unlock(&sst_lock);
+ return -EIO;
+ }
+
+ module_put(sst->dev->driver->owner);
+ pr_debug("unreg %s\n", sst->name);
+ sst = NULL;
+ mutex_unlock(&sst_lock);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(sst_unregister_dsp);
+
+static struct snd_pcm_hardware sst_platform_pcm_hw = {
+ .info = (SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_DOUBLE |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_MMAP|
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_SYNC_START),
+ .buffer_bytes_max = SST_MAX_BUFFER,
+ .period_bytes_min = SST_MIN_PERIOD_BYTES,
+ .period_bytes_max = SST_MAX_PERIOD_BYTES,
+ .periods_min = SST_MIN_PERIODS,
+ .periods_max = SST_MAX_PERIODS,
+ .fifo_size = SST_FIFO_SIZE,
+};
+
+/* MFLD - MSIC */
+static struct snd_soc_dai_driver sst_platform_dai[] = {
+{
+ .name = "Headset-cpu-dai",
+ .id = 0,
+ .playback = {
+ .channels_min = SST_STEREO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 5,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Speaker-cpu-dai",
+ .id = 1,
+ .playback = {
+ .channels_min = SST_MONO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Vibra1-cpu-dai",
+ .id = 2,
+ .playback = {
+ .channels_min = SST_MONO,
+ .channels_max = SST_MONO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Vibra2-cpu-dai",
+ .id = 3,
+ .playback = {
+ .channels_min = SST_MONO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Compress-cpu-dai",
+ .compress_dai = 1,
+ .playback = {
+ .channels_min = SST_STEREO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+},
+};
+
+static const struct snd_soc_component_driver sst_component = {
+ .name = "sst",
+};
+
+/* helper functions */
+static inline void sst_set_stream_status(struct sst_runtime_stream *stream,
+ int state)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&stream->status_lock, flags);
+ stream->stream_status = state;
+ spin_unlock_irqrestore(&stream->status_lock, flags);
+}
+
+static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
+{
+ int state;
+ unsigned long flags;
+
+ spin_lock_irqsave(&stream->status_lock, flags);
+ state = stream->stream_status;
+ spin_unlock_irqrestore(&stream->status_lock, flags);
+ return state;
+}
+
+static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
+ struct sst_pcm_params *param)
+{
+
+ param->codec = SST_CODEC_TYPE_PCM;
+ param->num_chan = (u8) substream->runtime->channels;
+ param->pcm_wd_sz = substream->runtime->sample_bits;
+ param->reserved = 0;
+ param->sfreq = substream->runtime->rate;
+ param->ring_buffer_size = snd_pcm_lib_buffer_bytes(substream);
+ param->period_count = substream->runtime->period_size;
+ param->ring_buffer_addr = virt_to_phys(substream->dma_buffer.area);
+ pr_debug("period_cnt = %d\n", param->period_count);
+ pr_debug("sfreq= %d, wd_sz = %d\n", param->sfreq, param->pcm_wd_sz);
+}
+
+static int sst_platform_alloc_stream(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream =
+ substream->runtime->private_data;
+ struct sst_pcm_params param = {0};
+ struct sst_stream_params str_params = {0};
+ int ret_val;
+
+ /* set codec params and inform SST driver the same */
+ sst_fill_pcm_params(substream, ¶m);
+ substream->runtime->dma_area = substream->dma_buffer.area;
+ str_params.sparams = param;
+ str_params.codec = param.codec;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ str_params.ops = STREAM_OPS_PLAYBACK;
+ str_params.device_type = substream->pcm->device + 1;
+ pr_debug("Playbck stream,Device %d\n",
+ substream->pcm->device);
+ } else {
+ str_params.ops = STREAM_OPS_CAPTURE;
+ str_params.device_type = SND_SST_DEVICE_CAPTURE;
+ pr_debug("Capture stream,Device %d\n",
+ substream->pcm->device);
+ }
+ ret_val = stream->ops->open(&str_params);
+ pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val);
+ if (ret_val < 0)
+ return ret_val;
+
+ stream->stream_info.str_id = ret_val;
+ pr_debug("str id : %d\n", stream->stream_info.str_id);
+ return ret_val;
+}
+
+static void sst_period_elapsed(void *mad_substream)
+{
+ struct snd_pcm_substream *substream = mad_substream;
+ struct sst_runtime_stream *stream;
+ int status;
+
+ if (!substream || !substream->runtime)
+ return;
+ stream = substream->runtime->private_data;
+ if (!stream)
+ return;
+ status = sst_get_stream_status(stream);
+ if (status != SST_PLATFORM_RUNNING)
+ return;
+ snd_pcm_period_elapsed(substream);
+}
+
+static int sst_platform_init_stream(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream =
+ substream->runtime->private_data;
+ int ret_val;
+
+ pr_debug("setting buffer ptr param\n");
+ sst_set_stream_status(stream, SST_PLATFORM_INIT);
+ stream->stream_info.period_elapsed = sst_period_elapsed;
+ stream->stream_info.mad_substream = substream;
+ stream->stream_info.buffer_ptr = 0;
+ stream->stream_info.sfreq = substream->runtime->rate;
+ ret_val = stream->ops->device_control(
+ SST_SND_STREAM_INIT, &stream->stream_info);
+ if (ret_val)
+ pr_err("control_set ret error %d\n", ret_val);
+ return ret_val;
+
+}
+/* end -- helper functions */
+
+static int sst_platform_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct sst_runtime_stream *stream;
+ int ret_val;
+
+ pr_debug("sst_platform_open called\n");
+
+ snd_soc_set_runtime_hwparams(substream, &sst_platform_pcm_hw);
+ ret_val = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret_val < 0)
+ return ret_val;
+
+ stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+ if (!stream)
+ return -ENOMEM;
+ spin_lock_init(&stream->status_lock);
+
+ /* get the sst ops */
+ mutex_lock(&sst_lock);
+ if (!sst) {
+ pr_err("no device available to run\n");
+ mutex_unlock(&sst_lock);
+ kfree(stream);
+ return -ENODEV;
+ }
+ if (!try_module_get(sst->dev->driver->owner)) {
+ mutex_unlock(&sst_lock);
+ kfree(stream);
+ return -ENODEV;
+ }
+ stream->ops = sst->ops;
+ mutex_unlock(&sst_lock);
+
+ stream->stream_info.str_id = 0;
+ sst_set_stream_status(stream, SST_PLATFORM_INIT);
+ stream->stream_info.mad_substream = substream;
+ /* allocate memory for SST API set */
+ runtime->private_data = stream;
+
+ return 0;
+}
+
+static int sst_platform_close(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val = 0, str_id;
+
+ pr_debug("sst_platform_close called\n");
+ stream = substream->runtime->private_data;
+ str_id = stream->stream_info.str_id;
+ if (str_id)
+ ret_val = stream->ops->close(str_id);
+ module_put(sst->dev->driver->owner);
+ kfree(stream);
+ return ret_val;
+}
+
+static int sst_platform_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val = 0, str_id;
+
+ pr_debug("sst_platform_pcm_prepare called\n");
+ stream = substream->runtime->private_data;
+ str_id = stream->stream_info.str_id;
+ if (stream->stream_info.str_id) {
+ ret_val = stream->ops->device_control(
+ SST_SND_DROP, &str_id);
+ return ret_val;
+ }
+
+ ret_val = sst_platform_alloc_stream(substream);
+ if (ret_val < 0)
+ return ret_val;
+ snprintf(substream->pcm->id, sizeof(substream->pcm->id),
+ "%d", stream->stream_info.str_id);
+
+ ret_val = sst_platform_init_stream(substream);
+ if (ret_val)
+ return ret_val;
+ substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
+ return ret_val;
+}
+
+static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ int ret_val = 0, str_id;
+ struct sst_runtime_stream *stream;
+ int str_cmd, status;
+
+ pr_debug("sst_platform_pcm_trigger called\n");
+ stream = substream->runtime->private_data;
+ str_id = stream->stream_info.str_id;
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ pr_debug("sst: Trigger Start\n");
+ str_cmd = SST_SND_START;
+ status = SST_PLATFORM_RUNNING;
+ stream->stream_info.mad_substream = substream;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ pr_debug("sst: in stop\n");
+ str_cmd = SST_SND_DROP;
+ status = SST_PLATFORM_DROPPED;
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ pr_debug("sst: in pause\n");
+ str_cmd = SST_SND_PAUSE;
+ status = SST_PLATFORM_PAUSED;
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ pr_debug("sst: in pause release\n");
+ str_cmd = SST_SND_RESUME;
+ status = SST_PLATFORM_RUNNING;
+ break;
+ default:
+ return -EINVAL;
+ }
+ ret_val = stream->ops->device_control(str_cmd, &str_id);
+ if (!ret_val)
+ sst_set_stream_status(stream, status);
+
+ return ret_val;
+}
+
+
+static snd_pcm_uframes_t sst_platform_pcm_pointer
+ (struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val, status;
+ struct pcm_stream_info *str_info;
+
+ stream = substream->runtime->private_data;
+ status = sst_get_stream_status(stream);
+ if (status == SST_PLATFORM_INIT)
+ return 0;
+ str_info = &stream->stream_info;
+ ret_val = stream->ops->device_control(
+ SST_SND_BUFFER_POINTER, str_info);
+ if (ret_val) {
+ pr_err("sst: error code = %d\n", ret_val);
+ return ret_val;
+ }
+ return stream->stream_info.buffer_ptr;
+}
+
+static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+ memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
+
+ return 0;
+}
+
+static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static struct snd_pcm_ops sst_platform_ops = {
+ .open = sst_platform_open,
+ .close = sst_platform_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .prepare = sst_platform_pcm_prepare,
+ .trigger = sst_platform_pcm_trigger,
+ .pointer = sst_platform_pcm_pointer,
+ .hw_params = sst_platform_pcm_hw_params,
+ .hw_free = sst_platform_pcm_hw_free,
+};
+
+static void sst_pcm_free(struct snd_pcm *pcm)
+{
+ pr_debug("sst_pcm_free called\n");
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_pcm *pcm = rtd->pcm;
+ int retval = 0;
+
+ pr_debug("sst_pcm_new called\n");
+ if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
+ pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+ retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
+ SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ SST_MIN_BUFFER, SST_MAX_BUFFER);
+ if (retval) {
+ pr_err("dma buffer allocationf fail\n");
+ return retval;
+ }
+ }
+ return retval;
+}
+
+/* compress stream operations */
+static void sst_compr_fragment_elapsed(void *arg)
+{
+ struct snd_compr_stream *cstream = (struct snd_compr_stream *)arg;
+
+ pr_debug("fragment elapsed by driver\n");
+ if (cstream)
+ snd_compr_fragment_elapsed(cstream);
+}
+
+static int sst_platform_compr_open(struct snd_compr_stream *cstream)
+{
+
+ int ret_val = 0;
+ struct snd_compr_runtime *runtime = cstream->runtime;
+ struct sst_runtime_stream *stream;
+
+ stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+ if (!stream)
+ return -ENOMEM;
+
+ spin_lock_init(&stream->status_lock);
+
+ /* get the sst ops */
+ if (!sst || !try_module_get(sst->dev->driver->owner)) {
+ pr_err("no device available to run\n");
+ ret_val = -ENODEV;
+ goto out_ops;
+ }
+ stream->compr_ops = sst->compr_ops;
+
+ stream->id = 0;
+ sst_set_stream_status(stream, SST_PLATFORM_INIT);
+ runtime->private_data = stream;
+ return 0;
+out_ops:
+ kfree(stream);
+ return ret_val;
+}
+
+static int sst_platform_compr_free(struct snd_compr_stream *cstream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val = 0, str_id;
+
+ stream = cstream->runtime->private_data;
+ /*need to check*/
+ str_id = stream->id;
+ if (str_id)
+ ret_val = stream->compr_ops->close(str_id);
+ module_put(sst->dev->driver->owner);
+ kfree(stream);
+ pr_debug("%s: %d\n", __func__, ret_val);
+ return 0;
+}
+
+static int sst_platform_compr_set_params(struct snd_compr_stream *cstream,
+ struct snd_compr_params *params)
+{
+ struct sst_runtime_stream *stream;
+ int retval;
+ struct snd_sst_params str_params;
+ struct sst_compress_cb cb;
+
+ stream = cstream->runtime->private_data;
+ /* construct fw structure for this*/
+ memset(&str_params, 0, sizeof(str_params));
+
+ str_params.ops = STREAM_OPS_PLAYBACK;
+ str_params.stream_type = SST_STREAM_TYPE_MUSIC;
+ str_params.device_type = SND_SST_DEVICE_COMPRESS;
+
+ switch (params->codec.id) {
+ case SND_AUDIOCODEC_MP3: {
+ str_params.codec = SST_CODEC_TYPE_MP3;
+ str_params.sparams.uc.mp3_params.codec = SST_CODEC_TYPE_MP3;
+ str_params.sparams.uc.mp3_params.num_chan = params->codec.ch_in;
+ str_params.sparams.uc.mp3_params.pcm_wd_sz = 16;
+ break;
+ }
+
+ case SND_AUDIOCODEC_AAC: {
+ str_params.codec = SST_CODEC_TYPE_AAC;
+ str_params.sparams.uc.aac_params.codec = SST_CODEC_TYPE_AAC;
+ str_params.sparams.uc.aac_params.num_chan = params->codec.ch_in;
+ str_params.sparams.uc.aac_params.pcm_wd_sz = 16;
+ if (params->codec.format == SND_AUDIOSTREAMFORMAT_MP4ADTS)
+ str_params.sparams.uc.aac_params.bs_format =
+ AAC_BIT_STREAM_ADTS;
+ else if (params->codec.format == SND_AUDIOSTREAMFORMAT_RAW)
+ str_params.sparams.uc.aac_params.bs_format =
+ AAC_BIT_STREAM_RAW;
+ else {
+ pr_err("Undefined format%d\n", params->codec.format);
+ return -EINVAL;
+ }
+ str_params.sparams.uc.aac_params.externalsr =
+ params->codec.sample_rate;
+ break;
+ }
+
+ default:
+ pr_err("codec not supported, id =%d\n", params->codec.id);
+ return -EINVAL;
+ }
+
+ str_params.aparams.ring_buf_info[0].addr =
+ virt_to_phys(cstream->runtime->buffer);
+ str_params.aparams.ring_buf_info[0].size =
+ cstream->runtime->buffer_size;
+ str_params.aparams.sg_count = 1;
+ str_params.aparams.frag_size = cstream->runtime->fragment_size;
+
+ cb.param = cstream;
+ cb.compr_cb = sst_compr_fragment_elapsed;
+
+ retval = stream->compr_ops->open(&str_params, &cb);
+ if (retval < 0) {
+ pr_err("stream allocation failed %d\n", retval);
+ return retval;
+ }
+
+ stream->id = retval;
+ return 0;
+}
+
+static int sst_platform_compr_trigger(struct snd_compr_stream *cstream, int cmd)
+{
+ struct sst_runtime_stream *stream =
+ cstream->runtime->private_data;
+
+ return stream->compr_ops->control(cmd, stream->id);
+}
+
+static int sst_platform_compr_pointer(struct snd_compr_stream *cstream,
+ struct snd_compr_tstamp *tstamp)
+{
+ struct sst_runtime_stream *stream;
+
+ stream = cstream->runtime->private_data;
+ stream->compr_ops->tstamp(stream->id, tstamp);
+ tstamp->byte_offset = tstamp->copied_total %
+ (u32)cstream->runtime->buffer_size;
+ pr_debug("calc bytes offset/copied bytes as %d\n", tstamp->byte_offset);
+ return 0;
+}
+
+static int sst_platform_compr_ack(struct snd_compr_stream *cstream,
+ size_t bytes)
+{
+ struct sst_runtime_stream *stream;
+
+ stream = cstream->runtime->private_data;
+ stream->compr_ops->ack(stream->id, (unsigned long)bytes);
+ stream->bytes_written += bytes;
+
+ return 0;
+}
+
+static int sst_platform_compr_get_caps(struct snd_compr_stream *cstream,
+ struct snd_compr_caps *caps)
+{
+ struct sst_runtime_stream *stream =
+ cstream->runtime->private_data;
+
+ return stream->compr_ops->get_caps(caps);
+}
+
+static int sst_platform_compr_get_codec_caps(struct snd_compr_stream *cstream,
+ struct snd_compr_codec_caps *codec)
+{
+ struct sst_runtime_stream *stream =
+ cstream->runtime->private_data;
+
+ return stream->compr_ops->get_codec_caps(codec);
+}
+
+static int sst_platform_compr_set_metadata(struct snd_compr_stream *cstream,
+ struct snd_compr_metadata *metadata)
+{
+ struct sst_runtime_stream *stream =
+ cstream->runtime->private_data;
+
+ return stream->compr_ops->set_metadata(stream->id, metadata);
+}
+
+static struct snd_compr_ops sst_platform_compr_ops = {
+
+ .open = sst_platform_compr_open,
+ .free = sst_platform_compr_free,
+ .set_params = sst_platform_compr_set_params,
+ .set_metadata = sst_platform_compr_set_metadata,
+ .trigger = sst_platform_compr_trigger,
+ .pointer = sst_platform_compr_pointer,
+ .ack = sst_platform_compr_ack,
+ .get_caps = sst_platform_compr_get_caps,
+ .get_codec_caps = sst_platform_compr_get_codec_caps,
+};
+
+static struct snd_soc_platform_driver sst_soc_platform_drv = {
+ .ops = &sst_platform_ops,
+ .compr_ops = &sst_platform_compr_ops,
+ .pcm_new = sst_pcm_new,
+ .pcm_free = sst_pcm_free,
+};
+
+static int sst_platform_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ pr_debug("sst_platform_probe called\n");
+ sst = NULL;
+ ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv);
+ if (ret) {
+ pr_err("registering soc platform failed\n");
+ return ret;
+ }
+
+ ret = snd_soc_register_component(&pdev->dev, &sst_component,
+ sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
+ if (ret) {
+ pr_err("registering cpu dais failed\n");
+ snd_soc_unregister_platform(&pdev->dev);
+ }
+ return ret;
+}
+
+static int sst_platform_remove(struct platform_device *pdev)
+{
+
+ snd_soc_unregister_component(&pdev->dev);
+ snd_soc_unregister_platform(&pdev->dev);
+ pr_debug("sst_platform_remove success\n");
+ return 0;
+}
+
+static struct platform_driver sst_platform_driver = {
+ .driver = {
+ .name = "sst-mfld-platform",
+ .owner = THIS_MODULE,
+ },
+ .probe = sst_platform_probe,
+ .remove = sst_platform_remove,
+};
+
+module_platform_driver(sst_platform_driver);
+
+MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
+MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
+MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sst-mfld-platform");
--- /dev/null
+/*
+ * sst_mfld_platform.h - Intel MID Platform driver header file
+ *
+ * Copyright (C) 2010 Intel Corp
+ * Author: Vinod Koul <vinod.koul@intel.com>
+ * Author: Harsha Priya <priya.harsha@intel.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; version 2 of the License.
+ *
+ * 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.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *
+ */
+
+#ifndef __SST_PLATFORMDRV_H__
+#define __SST_PLATFORMDRV_H__
+
+#include "sst-mfld-dsp.h"
+
+#define SST_MONO 1
+#define SST_STEREO 2
+#define SST_MAX_CAP 5
+
+#define SST_MAX_BUFFER (800*1024)
+#define SST_MIN_BUFFER (800*1024)
+#define SST_MIN_PERIOD_BYTES 32
+#define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
+#define SST_MIN_PERIODS 2
+#define SST_MAX_PERIODS (1024*2)
+#define SST_FIFO_SIZE 0
+
+struct pcm_stream_info {
+ int str_id;
+ void *mad_substream;
+ void (*period_elapsed) (void *mad_substream);
+ unsigned long long buffer_ptr;
+ int sfreq;
+};
+
+enum sst_drv_status {
+ SST_PLATFORM_INIT = 1,
+ SST_PLATFORM_STARTED,
+ SST_PLATFORM_RUNNING,
+ SST_PLATFORM_PAUSED,
+ SST_PLATFORM_DROPPED,
+};
+
+enum sst_controls {
+ SST_SND_ALLOC = 0x00,
+ SST_SND_PAUSE = 0x01,
+ SST_SND_RESUME = 0x02,
+ SST_SND_DROP = 0x03,
+ SST_SND_FREE = 0x04,
+ SST_SND_BUFFER_POINTER = 0x05,
+ SST_SND_STREAM_INIT = 0x06,
+ SST_SND_START = 0x07,
+ SST_MAX_CONTROLS = 0x07,
+};
+
+enum sst_stream_ops {
+ STREAM_OPS_PLAYBACK = 0,
+ STREAM_OPS_CAPTURE,
+};
+
+enum sst_audio_device_type {
+ SND_SST_DEVICE_HEADSET = 1,
+ SND_SST_DEVICE_IHF,
+ SND_SST_DEVICE_VIBRA,
+ SND_SST_DEVICE_HAPTIC,
+ SND_SST_DEVICE_CAPTURE,
+ SND_SST_DEVICE_COMPRESS,
+};
+
+/* PCM Parameters */
+struct sst_pcm_params {
+ u16 codec; /* codec type */
+ u8 num_chan; /* 1=Mono, 2=Stereo */
+ u8 pcm_wd_sz; /* 16/24 - bit*/
+ u32 reserved; /* Bitrate in bits per second */
+ u32 sfreq; /* Sampling rate in Hz */
+ u32 ring_buffer_size;
+ u32 period_count; /* period elapsed in samples*/
+ u32 ring_buffer_addr;
+};
+
+struct sst_stream_params {
+ u32 result;
+ u32 stream_id;
+ u8 codec;
+ u8 ops;
+ u8 stream_type;
+ u8 device_type;
+ struct sst_pcm_params sparams;
+};
+
+struct sst_compress_cb {
+ void *param;
+ void (*compr_cb)(void *param);
+};
+
+struct compress_sst_ops {
+ const char *name;
+ int (*open) (struct snd_sst_params *str_params,
+ struct sst_compress_cb *cb);
+ int (*control) (unsigned int cmd, unsigned int str_id);
+ int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
+ int (*ack) (unsigned int str_id, unsigned long bytes);
+ int (*close) (unsigned int str_id);
+ int (*get_caps) (struct snd_compr_caps *caps);
+ int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
+ int (*set_metadata) (unsigned int str_id,
+ struct snd_compr_metadata *mdata);
+
+};
+
+struct sst_ops {
+ int (*open) (struct sst_stream_params *str_param);
+ int (*device_control) (int cmd, void *arg);
+ int (*close) (unsigned int str_id);
+};
+
+struct sst_runtime_stream {
+ int stream_status;
+ unsigned int id;
+ size_t bytes_written;
+ struct pcm_stream_info stream_info;
+ struct sst_ops *ops;
+ struct compress_sst_ops *compr_ops;
+ spinlock_t status_lock;
+};
+
+struct sst_device {
+ char *name;
+ struct device *dev;
+ struct sst_ops *ops;
+ struct compress_sst_ops *compr_ops;
+};
+
+int sst_register_dsp(struct sst_device *sst);
+int sst_unregister_dsp(struct sst_device *sst);
+#endif
+++ /dev/null
-#ifndef __SST_DSP_H__
-#define __SST_DSP_H__
-/*
- * sst_dsp.h - Intel SST Driver for audio engine
- *
- * Copyright (C) 2008-12 Intel Corporation
- * Authors: Vinod Koul <vinod.koul@linux.intel.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; version 2 of the License.
- *
- * 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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-enum sst_codec_types {
- /* AUDIO/MUSIC CODEC Type Definitions */
- SST_CODEC_TYPE_UNKNOWN = 0,
- SST_CODEC_TYPE_PCM, /* Pass through Audio codec */
- SST_CODEC_TYPE_MP3,
- SST_CODEC_TYPE_MP24,
- SST_CODEC_TYPE_AAC,
- SST_CODEC_TYPE_AACP,
- SST_CODEC_TYPE_eAACP,
-};
-
-enum stream_type {
- SST_STREAM_TYPE_NONE = 0,
- SST_STREAM_TYPE_MUSIC = 1,
-};
-
-struct snd_pcm_params {
- u16 codec; /* codec type */
- u8 num_chan; /* 1=Mono, 2=Stereo */
- u8 pcm_wd_sz; /* 16/24 - bit*/
- u32 reserved; /* Bitrate in bits per second */
- u32 sfreq; /* Sampling rate in Hz */
- u8 use_offload_path;
- u8 reserved2;
- u16 reserved3;
- u8 channel_map[8];
-} __packed;
-
-/* MP3 Music Parameters Message */
-struct snd_mp3_params {
- u16 codec;
- u8 num_chan; /* 1=Mono, 2=Stereo */
- u8 pcm_wd_sz; /* 16/24 - bit*/
- u8 crc_check; /* crc_check - disable (0) or enable (1) */
- u8 reserved1; /* unused*/
- u16 reserved2; /* Unused */
-} __packed;
-
-#define AAC_BIT_STREAM_ADTS 0
-#define AAC_BIT_STREAM_ADIF 1
-#define AAC_BIT_STREAM_RAW 2
-
-/* AAC Music Parameters Message */
-struct snd_aac_params {
- u16 codec;
- u8 num_chan; /* 1=Mono, 2=Stereo*/
- u8 pcm_wd_sz; /* 16/24 - bit*/
- u8 bdownsample; /*SBR downsampling 0 - disable 1 -enabled AAC+ only */
- u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
- u16 reser2;
- u32 externalsr; /*sampling rate of basic AAC raw bit stream*/
- u8 sbr_signalling;/*disable/enable/set automode the SBR tool.AAC+*/
- u8 reser1;
- u16 reser3;
-} __packed;
-
-/* WMA Music Parameters Message */
-struct snd_wma_params {
- u16 codec;
- u8 num_chan; /* 1=Mono, 2=Stereo */
- u8 pcm_wd_sz; /* 16/24 - bit*/
- u32 brate; /* Use the hard coded value. */
- u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
- u32 channel_mask; /* Channel Mask */
- u16 format_tag; /* Format Tag */
- u16 block_align; /* packet size */
- u16 wma_encode_opt;/* Encoder option */
- u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB */
- u8 reserved; /* reserved */
-} __packed;
-
-/* Codec params struture */
-union snd_sst_codec_params {
- struct snd_pcm_params pcm_params;
- struct snd_mp3_params mp3_params;
- struct snd_aac_params aac_params;
- struct snd_wma_params wma_params;
-} __packed;
-
-/* Address and size info of a frame buffer */
-struct sst_address_info {
- u32 addr; /* Address at IA */
- u32 size; /* Size of the buffer */
-};
-
-struct snd_sst_alloc_params_ext {
- struct sst_address_info ring_buf_info[8];
- u8 sg_count;
- u8 reserved;
- u16 reserved2;
- u32 frag_size; /*Number of samples after which period elapsed
- message is sent valid only if path = 0*/
-} __packed;
-
-struct snd_sst_stream_params {
- union snd_sst_codec_params uc;
-} __packed;
-
-struct snd_sst_params {
- u32 stream_id;
- u8 codec;
- u8 ops;
- u8 stream_type;
- u8 device_type;
- struct snd_sst_stream_params sparams;
- struct snd_sst_alloc_params_ext aparams;
-};
-
-#endif /* __SST_DSP_H__ */
+++ /dev/null
-/*
- * sst_platform.c - Intel MID Platform driver
- *
- * Copyright (C) 2010-2013 Intel Corp
- * Author: Vinod Koul <vinod.koul@intel.com>
- * Author: Harsha Priya <priya.harsha@intel.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; version 2 of the License.
- *
- * 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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *
- */
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/compress_driver.h>
-#include "sst_platform.h"
-
-static struct sst_device *sst;
-static DEFINE_MUTEX(sst_lock);
-
-int sst_register_dsp(struct sst_device *dev)
-{
- if (WARN_ON(!dev))
- return -EINVAL;
- if (!try_module_get(dev->dev->driver->owner))
- return -ENODEV;
- mutex_lock(&sst_lock);
- if (sst) {
- pr_err("we already have a device %s\n", sst->name);
- module_put(dev->dev->driver->owner);
- mutex_unlock(&sst_lock);
- return -EEXIST;
- }
- pr_debug("registering device %s\n", dev->name);
- sst = dev;
- mutex_unlock(&sst_lock);
- return 0;
-}
-EXPORT_SYMBOL_GPL(sst_register_dsp);
-
-int sst_unregister_dsp(struct sst_device *dev)
-{
- if (WARN_ON(!dev))
- return -EINVAL;
- if (dev != sst)
- return -EINVAL;
-
- mutex_lock(&sst_lock);
-
- if (!sst) {
- mutex_unlock(&sst_lock);
- return -EIO;
- }
-
- module_put(sst->dev->driver->owner);
- pr_debug("unreg %s\n", sst->name);
- sst = NULL;
- mutex_unlock(&sst_lock);
- return 0;
-}
-EXPORT_SYMBOL_GPL(sst_unregister_dsp);
-
-static struct snd_pcm_hardware sst_platform_pcm_hw = {
- .info = (SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_DOUBLE |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME |
- SNDRV_PCM_INFO_MMAP|
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_SYNC_START),
- .buffer_bytes_max = SST_MAX_BUFFER,
- .period_bytes_min = SST_MIN_PERIOD_BYTES,
- .period_bytes_max = SST_MAX_PERIOD_BYTES,
- .periods_min = SST_MIN_PERIODS,
- .periods_max = SST_MAX_PERIODS,
- .fifo_size = SST_FIFO_SIZE,
-};
-
-/* MFLD - MSIC */
-static struct snd_soc_dai_driver sst_platform_dai[] = {
-{
- .name = "Headset-cpu-dai",
- .id = 0,
- .playback = {
- .channels_min = SST_STEREO,
- .channels_max = SST_STEREO,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S24_LE,
- },
- .capture = {
- .channels_min = 1,
- .channels_max = 5,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S24_LE,
- },
-},
-{
- .name = "Speaker-cpu-dai",
- .id = 1,
- .playback = {
- .channels_min = SST_MONO,
- .channels_max = SST_STEREO,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S24_LE,
- },
-},
-{
- .name = "Vibra1-cpu-dai",
- .id = 2,
- .playback = {
- .channels_min = SST_MONO,
- .channels_max = SST_MONO,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S24_LE,
- },
-},
-{
- .name = "Vibra2-cpu-dai",
- .id = 3,
- .playback = {
- .channels_min = SST_MONO,
- .channels_max = SST_STEREO,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S24_LE,
- },
-},
-{
- .name = "Compress-cpu-dai",
- .compress_dai = 1,
- .playback = {
- .channels_min = SST_STEREO,
- .channels_max = SST_STEREO,
- .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
-},
-};
-
-static const struct snd_soc_component_driver sst_component = {
- .name = "sst",
-};
-
-/* helper functions */
-static inline void sst_set_stream_status(struct sst_runtime_stream *stream,
- int state)
-{
- unsigned long flags;
- spin_lock_irqsave(&stream->status_lock, flags);
- stream->stream_status = state;
- spin_unlock_irqrestore(&stream->status_lock, flags);
-}
-
-static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
-{
- int state;
- unsigned long flags;
-
- spin_lock_irqsave(&stream->status_lock, flags);
- state = stream->stream_status;
- spin_unlock_irqrestore(&stream->status_lock, flags);
- return state;
-}
-
-static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
- struct sst_pcm_params *param)
-{
-
- param->codec = SST_CODEC_TYPE_PCM;
- param->num_chan = (u8) substream->runtime->channels;
- param->pcm_wd_sz = substream->runtime->sample_bits;
- param->reserved = 0;
- param->sfreq = substream->runtime->rate;
- param->ring_buffer_size = snd_pcm_lib_buffer_bytes(substream);
- param->period_count = substream->runtime->period_size;
- param->ring_buffer_addr = virt_to_phys(substream->dma_buffer.area);
- pr_debug("period_cnt = %d\n", param->period_count);
- pr_debug("sfreq= %d, wd_sz = %d\n", param->sfreq, param->pcm_wd_sz);
-}
-
-static int sst_platform_alloc_stream(struct snd_pcm_substream *substream)
-{
- struct sst_runtime_stream *stream =
- substream->runtime->private_data;
- struct sst_pcm_params param = {0};
- struct sst_stream_params str_params = {0};
- int ret_val;
-
- /* set codec params and inform SST driver the same */
- sst_fill_pcm_params(substream, ¶m);
- substream->runtime->dma_area = substream->dma_buffer.area;
- str_params.sparams = param;
- str_params.codec = param.codec;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- str_params.ops = STREAM_OPS_PLAYBACK;
- str_params.device_type = substream->pcm->device + 1;
- pr_debug("Playbck stream,Device %d\n",
- substream->pcm->device);
- } else {
- str_params.ops = STREAM_OPS_CAPTURE;
- str_params.device_type = SND_SST_DEVICE_CAPTURE;
- pr_debug("Capture stream,Device %d\n",
- substream->pcm->device);
- }
- ret_val = stream->ops->open(&str_params);
- pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val);
- if (ret_val < 0)
- return ret_val;
-
- stream->stream_info.str_id = ret_val;
- pr_debug("str id : %d\n", stream->stream_info.str_id);
- return ret_val;
-}
-
-static void sst_period_elapsed(void *mad_substream)
-{
- struct snd_pcm_substream *substream = mad_substream;
- struct sst_runtime_stream *stream;
- int status;
-
- if (!substream || !substream->runtime)
- return;
- stream = substream->runtime->private_data;
- if (!stream)
- return;
- status = sst_get_stream_status(stream);
- if (status != SST_PLATFORM_RUNNING)
- return;
- snd_pcm_period_elapsed(substream);
-}
-
-static int sst_platform_init_stream(struct snd_pcm_substream *substream)
-{
- struct sst_runtime_stream *stream =
- substream->runtime->private_data;
- int ret_val;
-
- pr_debug("setting buffer ptr param\n");
- sst_set_stream_status(stream, SST_PLATFORM_INIT);
- stream->stream_info.period_elapsed = sst_period_elapsed;
- stream->stream_info.mad_substream = substream;
- stream->stream_info.buffer_ptr = 0;
- stream->stream_info.sfreq = substream->runtime->rate;
- ret_val = stream->ops->device_control(
- SST_SND_STREAM_INIT, &stream->stream_info);
- if (ret_val)
- pr_err("control_set ret error %d\n", ret_val);
- return ret_val;
-
-}
-/* end -- helper functions */
-
-static int sst_platform_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct sst_runtime_stream *stream;
- int ret_val;
-
- pr_debug("sst_platform_open called\n");
-
- snd_soc_set_runtime_hwparams(substream, &sst_platform_pcm_hw);
- ret_val = snd_pcm_hw_constraint_integer(runtime,
- SNDRV_PCM_HW_PARAM_PERIODS);
- if (ret_val < 0)
- return ret_val;
-
- stream = kzalloc(sizeof(*stream), GFP_KERNEL);
- if (!stream)
- return -ENOMEM;
- spin_lock_init(&stream->status_lock);
-
- /* get the sst ops */
- mutex_lock(&sst_lock);
- if (!sst) {
- pr_err("no device available to run\n");
- mutex_unlock(&sst_lock);
- kfree(stream);
- return -ENODEV;
- }
- if (!try_module_get(sst->dev->driver->owner)) {
- mutex_unlock(&sst_lock);
- kfree(stream);
- return -ENODEV;
- }
- stream->ops = sst->ops;
- mutex_unlock(&sst_lock);
-
- stream->stream_info.str_id = 0;
- sst_set_stream_status(stream, SST_PLATFORM_INIT);
- stream->stream_info.mad_substream = substream;
- /* allocate memory for SST API set */
- runtime->private_data = stream;
-
- return 0;
-}
-
-static int sst_platform_close(struct snd_pcm_substream *substream)
-{
- struct sst_runtime_stream *stream;
- int ret_val = 0, str_id;
-
- pr_debug("sst_platform_close called\n");
- stream = substream->runtime->private_data;
- str_id = stream->stream_info.str_id;
- if (str_id)
- ret_val = stream->ops->close(str_id);
- module_put(sst->dev->driver->owner);
- kfree(stream);
- return ret_val;
-}
-
-static int sst_platform_pcm_prepare(struct snd_pcm_substream *substream)
-{
- struct sst_runtime_stream *stream;
- int ret_val = 0, str_id;
-
- pr_debug("sst_platform_pcm_prepare called\n");
- stream = substream->runtime->private_data;
- str_id = stream->stream_info.str_id;
- if (stream->stream_info.str_id) {
- ret_val = stream->ops->device_control(
- SST_SND_DROP, &str_id);
- return ret_val;
- }
-
- ret_val = sst_platform_alloc_stream(substream);
- if (ret_val < 0)
- return ret_val;
- snprintf(substream->pcm->id, sizeof(substream->pcm->id),
- "%d", stream->stream_info.str_id);
-
- ret_val = sst_platform_init_stream(substream);
- if (ret_val)
- return ret_val;
- substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
- return ret_val;
-}
-
-static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
- int cmd)
-{
- int ret_val = 0, str_id;
- struct sst_runtime_stream *stream;
- int str_cmd, status;
-
- pr_debug("sst_platform_pcm_trigger called\n");
- stream = substream->runtime->private_data;
- str_id = stream->stream_info.str_id;
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- pr_debug("sst: Trigger Start\n");
- str_cmd = SST_SND_START;
- status = SST_PLATFORM_RUNNING;
- stream->stream_info.mad_substream = substream;
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- pr_debug("sst: in stop\n");
- str_cmd = SST_SND_DROP;
- status = SST_PLATFORM_DROPPED;
- break;
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- pr_debug("sst: in pause\n");
- str_cmd = SST_SND_PAUSE;
- status = SST_PLATFORM_PAUSED;
- break;
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- pr_debug("sst: in pause release\n");
- str_cmd = SST_SND_RESUME;
- status = SST_PLATFORM_RUNNING;
- break;
- default:
- return -EINVAL;
- }
- ret_val = stream->ops->device_control(str_cmd, &str_id);
- if (!ret_val)
- sst_set_stream_status(stream, status);
-
- return ret_val;
-}
-
-
-static snd_pcm_uframes_t sst_platform_pcm_pointer
- (struct snd_pcm_substream *substream)
-{
- struct sst_runtime_stream *stream;
- int ret_val, status;
- struct pcm_stream_info *str_info;
-
- stream = substream->runtime->private_data;
- status = sst_get_stream_status(stream);
- if (status == SST_PLATFORM_INIT)
- return 0;
- str_info = &stream->stream_info;
- ret_val = stream->ops->device_control(
- SST_SND_BUFFER_POINTER, str_info);
- if (ret_val) {
- pr_err("sst: error code = %d\n", ret_val);
- return ret_val;
- }
- return stream->stream_info.buffer_ptr;
-}
-
-static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
- memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
-
- return 0;
-}
-
-static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
-}
-
-static struct snd_pcm_ops sst_platform_ops = {
- .open = sst_platform_open,
- .close = sst_platform_close,
- .ioctl = snd_pcm_lib_ioctl,
- .prepare = sst_platform_pcm_prepare,
- .trigger = sst_platform_pcm_trigger,
- .pointer = sst_platform_pcm_pointer,
- .hw_params = sst_platform_pcm_hw_params,
- .hw_free = sst_platform_pcm_hw_free,
-};
-
-static void sst_pcm_free(struct snd_pcm *pcm)
-{
- pr_debug("sst_pcm_free called\n");
- snd_pcm_lib_preallocate_free_for_all(pcm);
-}
-
-static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_pcm *pcm = rtd->pcm;
- int retval = 0;
-
- pr_debug("sst_pcm_new called\n");
- if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
- pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
- retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
- SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_KERNEL),
- SST_MIN_BUFFER, SST_MAX_BUFFER);
- if (retval) {
- pr_err("dma buffer allocationf fail\n");
- return retval;
- }
- }
- return retval;
-}
-
-/* compress stream operations */
-static void sst_compr_fragment_elapsed(void *arg)
-{
- struct snd_compr_stream *cstream = (struct snd_compr_stream *)arg;
-
- pr_debug("fragment elapsed by driver\n");
- if (cstream)
- snd_compr_fragment_elapsed(cstream);
-}
-
-static int sst_platform_compr_open(struct snd_compr_stream *cstream)
-{
-
- int ret_val = 0;
- struct snd_compr_runtime *runtime = cstream->runtime;
- struct sst_runtime_stream *stream;
-
- stream = kzalloc(sizeof(*stream), GFP_KERNEL);
- if (!stream)
- return -ENOMEM;
-
- spin_lock_init(&stream->status_lock);
-
- /* get the sst ops */
- if (!sst || !try_module_get(sst->dev->driver->owner)) {
- pr_err("no device available to run\n");
- ret_val = -ENODEV;
- goto out_ops;
- }
- stream->compr_ops = sst->compr_ops;
-
- stream->id = 0;
- sst_set_stream_status(stream, SST_PLATFORM_INIT);
- runtime->private_data = stream;
- return 0;
-out_ops:
- kfree(stream);
- return ret_val;
-}
-
-static int sst_platform_compr_free(struct snd_compr_stream *cstream)
-{
- struct sst_runtime_stream *stream;
- int ret_val = 0, str_id;
-
- stream = cstream->runtime->private_data;
- /*need to check*/
- str_id = stream->id;
- if (str_id)
- ret_val = stream->compr_ops->close(str_id);
- module_put(sst->dev->driver->owner);
- kfree(stream);
- pr_debug("%s: %d\n", __func__, ret_val);
- return 0;
-}
-
-static int sst_platform_compr_set_params(struct snd_compr_stream *cstream,
- struct snd_compr_params *params)
-{
- struct sst_runtime_stream *stream;
- int retval;
- struct snd_sst_params str_params;
- struct sst_compress_cb cb;
-
- stream = cstream->runtime->private_data;
- /* construct fw structure for this*/
- memset(&str_params, 0, sizeof(str_params));
-
- str_params.ops = STREAM_OPS_PLAYBACK;
- str_params.stream_type = SST_STREAM_TYPE_MUSIC;
- str_params.device_type = SND_SST_DEVICE_COMPRESS;
-
- switch (params->codec.id) {
- case SND_AUDIOCODEC_MP3: {
- str_params.codec = SST_CODEC_TYPE_MP3;
- str_params.sparams.uc.mp3_params.codec = SST_CODEC_TYPE_MP3;
- str_params.sparams.uc.mp3_params.num_chan = params->codec.ch_in;
- str_params.sparams.uc.mp3_params.pcm_wd_sz = 16;
- break;
- }
-
- case SND_AUDIOCODEC_AAC: {
- str_params.codec = SST_CODEC_TYPE_AAC;
- str_params.sparams.uc.aac_params.codec = SST_CODEC_TYPE_AAC;
- str_params.sparams.uc.aac_params.num_chan = params->codec.ch_in;
- str_params.sparams.uc.aac_params.pcm_wd_sz = 16;
- if (params->codec.format == SND_AUDIOSTREAMFORMAT_MP4ADTS)
- str_params.sparams.uc.aac_params.bs_format =
- AAC_BIT_STREAM_ADTS;
- else if (params->codec.format == SND_AUDIOSTREAMFORMAT_RAW)
- str_params.sparams.uc.aac_params.bs_format =
- AAC_BIT_STREAM_RAW;
- else {
- pr_err("Undefined format%d\n", params->codec.format);
- return -EINVAL;
- }
- str_params.sparams.uc.aac_params.externalsr =
- params->codec.sample_rate;
- break;
- }
-
- default:
- pr_err("codec not supported, id =%d\n", params->codec.id);
- return -EINVAL;
- }
-
- str_params.aparams.ring_buf_info[0].addr =
- virt_to_phys(cstream->runtime->buffer);
- str_params.aparams.ring_buf_info[0].size =
- cstream->runtime->buffer_size;
- str_params.aparams.sg_count = 1;
- str_params.aparams.frag_size = cstream->runtime->fragment_size;
-
- cb.param = cstream;
- cb.compr_cb = sst_compr_fragment_elapsed;
-
- retval = stream->compr_ops->open(&str_params, &cb);
- if (retval < 0) {
- pr_err("stream allocation failed %d\n", retval);
- return retval;
- }
-
- stream->id = retval;
- return 0;
-}
-
-static int sst_platform_compr_trigger(struct snd_compr_stream *cstream, int cmd)
-{
- struct sst_runtime_stream *stream =
- cstream->runtime->private_data;
-
- return stream->compr_ops->control(cmd, stream->id);
-}
-
-static int sst_platform_compr_pointer(struct snd_compr_stream *cstream,
- struct snd_compr_tstamp *tstamp)
-{
- struct sst_runtime_stream *stream;
-
- stream = cstream->runtime->private_data;
- stream->compr_ops->tstamp(stream->id, tstamp);
- tstamp->byte_offset = tstamp->copied_total %
- (u32)cstream->runtime->buffer_size;
- pr_debug("calc bytes offset/copied bytes as %d\n", tstamp->byte_offset);
- return 0;
-}
-
-static int sst_platform_compr_ack(struct snd_compr_stream *cstream,
- size_t bytes)
-{
- struct sst_runtime_stream *stream;
-
- stream = cstream->runtime->private_data;
- stream->compr_ops->ack(stream->id, (unsigned long)bytes);
- stream->bytes_written += bytes;
-
- return 0;
-}
-
-static int sst_platform_compr_get_caps(struct snd_compr_stream *cstream,
- struct snd_compr_caps *caps)
-{
- struct sst_runtime_stream *stream =
- cstream->runtime->private_data;
-
- return stream->compr_ops->get_caps(caps);
-}
-
-static int sst_platform_compr_get_codec_caps(struct snd_compr_stream *cstream,
- struct snd_compr_codec_caps *codec)
-{
- struct sst_runtime_stream *stream =
- cstream->runtime->private_data;
-
- return stream->compr_ops->get_codec_caps(codec);
-}
-
-static int sst_platform_compr_set_metadata(struct snd_compr_stream *cstream,
- struct snd_compr_metadata *metadata)
-{
- struct sst_runtime_stream *stream =
- cstream->runtime->private_data;
-
- return stream->compr_ops->set_metadata(stream->id, metadata);
-}
-
-static struct snd_compr_ops sst_platform_compr_ops = {
-
- .open = sst_platform_compr_open,
- .free = sst_platform_compr_free,
- .set_params = sst_platform_compr_set_params,
- .set_metadata = sst_platform_compr_set_metadata,
- .trigger = sst_platform_compr_trigger,
- .pointer = sst_platform_compr_pointer,
- .ack = sst_platform_compr_ack,
- .get_caps = sst_platform_compr_get_caps,
- .get_codec_caps = sst_platform_compr_get_codec_caps,
-};
-
-static struct snd_soc_platform_driver sst_soc_platform_drv = {
- .ops = &sst_platform_ops,
- .compr_ops = &sst_platform_compr_ops,
- .pcm_new = sst_pcm_new,
- .pcm_free = sst_pcm_free,
-};
-
-static int sst_platform_probe(struct platform_device *pdev)
-{
- int ret;
-
- pr_debug("sst_platform_probe called\n");
- sst = NULL;
- ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv);
- if (ret) {
- pr_err("registering soc platform failed\n");
- return ret;
- }
-
- ret = snd_soc_register_component(&pdev->dev, &sst_component,
- sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
- if (ret) {
- pr_err("registering cpu dais failed\n");
- snd_soc_unregister_platform(&pdev->dev);
- }
- return ret;
-}
-
-static int sst_platform_remove(struct platform_device *pdev)
-{
-
- snd_soc_unregister_component(&pdev->dev);
- snd_soc_unregister_platform(&pdev->dev);
- pr_debug("sst_platform_remove success\n");
- return 0;
-}
-
-static struct platform_driver sst_platform_driver = {
- .driver = {
- .name = "sst-platform",
- .owner = THIS_MODULE,
- },
- .probe = sst_platform_probe,
- .remove = sst_platform_remove,
-};
-
-module_platform_driver(sst_platform_driver);
-
-MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
-MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
-MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:sst-platform");
+++ /dev/null
-/*
- * sst_platform.h - Intel MID Platform driver header file
- *
- * Copyright (C) 2010 Intel Corp
- * Author: Vinod Koul <vinod.koul@intel.com>
- * Author: Harsha Priya <priya.harsha@intel.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; version 2 of the License.
- *
- * 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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *
- */
-
-#ifndef __SST_PLATFORMDRV_H__
-#define __SST_PLATFORMDRV_H__
-
-#include "sst_dsp.h"
-
-#define SST_MONO 1
-#define SST_STEREO 2
-#define SST_MAX_CAP 5
-
-#define SST_MAX_BUFFER (800*1024)
-#define SST_MIN_BUFFER (800*1024)
-#define SST_MIN_PERIOD_BYTES 32
-#define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
-#define SST_MIN_PERIODS 2
-#define SST_MAX_PERIODS (1024*2)
-#define SST_FIFO_SIZE 0
-
-struct pcm_stream_info {
- int str_id;
- void *mad_substream;
- void (*period_elapsed) (void *mad_substream);
- unsigned long long buffer_ptr;
- int sfreq;
-};
-
-enum sst_drv_status {
- SST_PLATFORM_INIT = 1,
- SST_PLATFORM_STARTED,
- SST_PLATFORM_RUNNING,
- SST_PLATFORM_PAUSED,
- SST_PLATFORM_DROPPED,
-};
-
-enum sst_controls {
- SST_SND_ALLOC = 0x00,
- SST_SND_PAUSE = 0x01,
- SST_SND_RESUME = 0x02,
- SST_SND_DROP = 0x03,
- SST_SND_FREE = 0x04,
- SST_SND_BUFFER_POINTER = 0x05,
- SST_SND_STREAM_INIT = 0x06,
- SST_SND_START = 0x07,
- SST_MAX_CONTROLS = 0x07,
-};
-
-enum sst_stream_ops {
- STREAM_OPS_PLAYBACK = 0,
- STREAM_OPS_CAPTURE,
-};
-
-enum sst_audio_device_type {
- SND_SST_DEVICE_HEADSET = 1,
- SND_SST_DEVICE_IHF,
- SND_SST_DEVICE_VIBRA,
- SND_SST_DEVICE_HAPTIC,
- SND_SST_DEVICE_CAPTURE,
- SND_SST_DEVICE_COMPRESS,
-};
-
-/* PCM Parameters */
-struct sst_pcm_params {
- u16 codec; /* codec type */
- u8 num_chan; /* 1=Mono, 2=Stereo */
- u8 pcm_wd_sz; /* 16/24 - bit*/
- u32 reserved; /* Bitrate in bits per second */
- u32 sfreq; /* Sampling rate in Hz */
- u32 ring_buffer_size;
- u32 period_count; /* period elapsed in samples*/
- u32 ring_buffer_addr;
-};
-
-struct sst_stream_params {
- u32 result;
- u32 stream_id;
- u8 codec;
- u8 ops;
- u8 stream_type;
- u8 device_type;
- struct sst_pcm_params sparams;
-};
-
-struct sst_compress_cb {
- void *param;
- void (*compr_cb)(void *param);
-};
-
-struct compress_sst_ops {
- const char *name;
- int (*open) (struct snd_sst_params *str_params,
- struct sst_compress_cb *cb);
- int (*control) (unsigned int cmd, unsigned int str_id);
- int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
- int (*ack) (unsigned int str_id, unsigned long bytes);
- int (*close) (unsigned int str_id);
- int (*get_caps) (struct snd_compr_caps *caps);
- int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
- int (*set_metadata) (unsigned int str_id,
- struct snd_compr_metadata *mdata);
-
-};
-
-struct sst_ops {
- int (*open) (struct sst_stream_params *str_param);
- int (*device_control) (int cmd, void *arg);
- int (*close) (unsigned int str_id);
-};
-
-struct sst_runtime_stream {
- int stream_status;
- unsigned int id;
- size_t bytes_written;
- struct pcm_stream_info stream_info;
- struct sst_ops *ops;
- struct compress_sst_ops *compr_ops;
- spinlock_t status_lock;
-};
-
-struct sst_device {
- char *name;
- struct device *dev;
- struct sst_ops *ops;
- struct compress_sst_ops *compr_ops;
-};
-
-int sst_register_dsp(struct sst_device *sst);
-int sst_unregister_dsp(struct sst_device *sst);
-#endif
projects / deliverable / linux.git / commitdiff
