/****************************************************************************
Copyright Echo Digital Audio Corporation (c) 1998 - 2004
All rights reserved
www.echoaudio.com
This file is part of Echo Digital Audio's generic driver library.
Echo Digital Audio's generic driver library 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.
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.
*************************************************************************
Translation from C++ and adaptation for use in ALSA-Driver
were made by Giuliano Pochini <pochini@shiny.it>
****************************************************************************/
/* These functions are common for Gina24, Layla24 and Mona cards */
/* ASIC status check - some cards have one or two ASICs that need to be
loaded. Once that load is complete, this function is called to see if
the load was successful.
If this load fails, it does not necessarily mean that the hardware is
defective - the external box may be disconnected or turned off. */
static int check_asic_status(struct echoaudio *chip)
{
u32 asic_status;
send_vector(chip, DSP_VC_TEST_ASIC);
/* The DSP will return a value to indicate whether or not the
ASIC is currently loaded */
if (read_dsp(chip, &asic_status) < 0) {
dev_err(chip->card->dev,
"check_asic_status: failed on read_dsp\n");
chip->asic_loaded = FALSE;
return -EIO;
}
chip->asic_loaded = (asic_status == ASIC_ALREADY_LOADED);
return chip->asic_loaded ? 0 : -EIO;
}
/* Most configuration of Gina24, Layla24, or Mona is accomplished by writing
the control register. write_control_reg sends the new control register
value to the DSP. */
static int write_control_reg(struct echoaudio *chip, u32 value, char force)
{
/* Handle the digital input auto-mute */
if (chip->digital_in_automute)
value |= GML_DIGITAL_IN_AUTO_MUTE;
else
value &= ~GML_DIGITAL_IN_AUTO_MUTE;
dev_dbg(chip->card->dev, "write_control_reg: 0x%x\n", value);
/* Write the control register */
value = cpu_to_le32(value);
if (value != chip->comm_page->control_register || force) {
if (wait_handshake(chip))
return -EIO;
chip->comm_page->control_register = value;
clear_handshake(chip);
return send_vector(chip, DSP_VC_WRITE_CONTROL_REG);
}
return 0;
}
/* Gina24, Layla24, and Mona support digital input auto-mute. If the digital
input auto-mute is enabled, the DSP will only enable the digital inputs if
the card is syncing to a valid clock on the ADAT or S/PDIF inputs.
If the auto-mute is disabled, the digital inputs are enabled regardless of
what the input clock is set or what is connected. */
static int set_input_auto_mute(struct echoaudio *chip, int automute)
{
dev_dbg(chip->card->dev, "set_input_auto_mute %d\n", automute);
chip->digital_in_automute = automute;
/* Re-set the input clock to the current value - indirectly causes
the auto-mute flag to be sent to the DSP */
return set_input_clock(chip, chip->input_clock);
}
/* S/PDIF coax / S/PDIF optical / ADAT - switch */
static int set_digital_mode(struct echoaudio</*
* sst_drv_interface.c - Intel SST Driver for audio engine
*
* Copyright (C) 2008-14 Intel Corp
* Authors: Vinod Koul <vinod.koul@intel.com>
* Harsha Priya <priya.harsha@intel.com>
* Dharageswari R <dharageswari.r@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.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/fs.h>
#include <linux/firmware.h>
#include <linux/pm_runtime.h>
#include <linux/pm_qos.h>
#include <linux/math64.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/compress_driver.h>
#include <asm/platform_sst_audio.h>
#include "../sst-mfld-platform.h"
#include "sst.h"
#include "../../common/sst-dsp.h"
#define NUM_CODEC 2
#define MIN_FRAGMENT 2
#define MAX_FRAGMENT 4
#define MIN_FRAGMENT_SIZE (50 * 1024)
#define MAX_FRAGMENT_SIZE (1024 * 1024)
#define SST_GET_BYTES_PER_SAMPLE(pcm_wd_sz) (((pcm_wd_sz + 15) >> 4) << 1)
int free_stream_context(struct intel_sst_drv *ctx, unsigned int str_id)
{
struct stream_info *stream;
int ret = 0;
stream = get_stream_info(ctx, str_id);
if (stream) {
/* str_id is valid, so stream is alloacted */
ret = sst_free_stream(ctx, str_id);
if (ret)
sst_clean_stream(&ctx->streams[str_id]);
return ret;
} else {
dev_err(ctx->dev, "we tried to free stream context %d which was freed!!!\n", str_id);
}
return ret;
}
int sst_get_stream_allocated(struct intel_sst_drv *ctx,
struct snd_sst_params *str_param,
struct snd_sst_lib_download **lib_dnld)
{
int retval;
retval = ctx->ops->alloc_stream(ctx, str_param);
if (retval > 0)
dev_dbg(ctx->dev, "Stream allocated %d\n", retval);
return retval;
}
/*
* sst_get_sfreq - this function returns the frequency of the stream
*
* @str_param : stream params
*/
int sst_get_sfreq(struct snd_sst_params *str_param)
{
switch (str_param->codec) {
case SST_CODEC_TYPE_PCM:
return str_param->sparams.uc.pcm_params.sfreq;
case SST_CODEC_TYPE_AAC:
return str_param->sparams.uc.aac_params.externalsr;
case SST_CODEC_TYPE_MP3:
return 0;
default:
return -EINVAL;
}
}
/*
* sst_get_num_channel - get number of channels for the stream
*
* @str_param : stream params
*/
int sst_get_num_channel(struct snd_sst_params *str_param)
{
switch (str_param->codec) {
case SST_CODEC_TYPE_PCM:
return str_param->sparams.uc.pcm_params.num_chan;
case SST_CODEC_TYPE_MP3:
return str_param->sparams.uc.mp3_params.num_chan;
case SST_CODEC_TYPE_AAC:
return str_param->sparams.uc.aac_params.num_chan;
default:
return -EINVAL;
}
}
/*
* sst_get_stream - this function prepares for stream allocation
*
* @str_param : stream param
*/
int sst_get_stream(struct intel_sst_drv *ctx,
struct snd_sst_params *str_param)
{
int retval;
struct stream_info *str_info;
/* stream is not allocated, we are allocating */
retval = ctx->ops->alloc_stream(ctx, str_param);
if (retval <= 0) {
return -EIO;
}
/* store sampling freq */
str_info = &ctx->streams[retval];
str_info->sfreq = sst_get_sfreq(str_param);
return retval;
}
static int sst_power_control(struct device *dev, bool state)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
int ret = 0;
int usage_count = 0;
#ifdef CONFIG_PM
usage_count = atomic_read(&dev->power.usage_count);
#else
usage_count = 1;
#endif
if (state == true) {
ret = pm_runtime_get_sync(dev);
dev_dbg(ctx->dev, "Enable: pm usage count: %d\n", usage_count);
if (ret < 0) {
dev_err(ctx->dev, "Runtime get failed with err: %d\n", ret);
return ret;
}
if ((ctx->sst_state == SST_RESET) && (usage_count == 1)) {
ret = sst_load_fw(ctx);
if (ret) {
dev_err(dev, "FW download fail %d\n", ret);
sst_set_fw_state_locked(ctx, SST_RESET);
ret = sst_pm_runtime_put(ctx);
}
}
} else {
dev_dbg(ctx->dev, "Disable: pm usage count: %d\n", usage_count);
return sst_pm_runtime_put(ctx);
}
return ret;
}
/*
* sst_open_pcm_stream - Open PCM interface
*
* @str_param: parameters of pcm stream
*
* This function is called by MID sound card driver to open
* a new pcm interface
*/
static int sst_open_pcm_stream(struct device *dev,
struct snd_sst_params *str_param)
{
int retval;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (!str_param)
return -EINVAL;
retval = sst_get_stream(ctx, str_param);
if (retval > 0)
ctx->stream_cnt++;
else
dev_err(ctx->dev, "sst_get_stream returned err %d\n", retval);
return retval;
}
static int sst_cdev_open(struct device *dev,
struct snd_sst_params *str_params, struct sst_compress_cb *cb)
{
int str_id, retval;
struct stream_info *stream;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
retval = pm_runtime_get_sync(ctx->dev);
if (retval < 0)
return retval;
str_id = sst_get_stream(ctx, str_params);
if (str_id > 0) {
dev_dbg(dev, "stream allocated in sst_cdev_open %d\n", str_id);
stream = &ctx->streams[str_id];
stream->compr_cb = cb->compr_cb;
stream->compr_cb_param = cb->param;
stream->drain_notify = cb->drain_notify;
stream->drain_cb_param = cb->drain_cb_param;
} else {
dev_err(dev, "stream encountered error during alloc %d\n", str_id);
str_id = -EINVAL;
sst_pm_runtime_put(ctx);
}
return str_id;
}
static int sst_cdev_close(struct device *dev, unsigned int str_id)
{
int retval;
struct stream_info *stream;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
stream = get_stream_info(ctx, str_id);
if (!stream) {
dev_err(dev, "stream info is NULL for str %d!!!\n", str_id);
return -EINVAL;
}
if (stream->status == STREAM_RESET) {
dev_dbg(dev, "stream in reset state...\n");
stream->status = STREAM_UN_INIT;
retval = 0;
goto put;
}
retval = sst_free_stream(ctx, str_id);
put:
stream->compr_cb_param = NULL;
stream->compr_cb = NULL;
if (retval)
dev_err(dev, "free stream returned err %d\n", retval);
dev_dbg(dev, "End\n");
return retval;
}
static int sst_cdev_ack(struct device *dev, unsigned int str_id,
unsigned long bytes)
{
struct stream_info *stream;
struct snd_sst_tstamp fw_tstamp = {0,};
int offset;
void __iomem *addr;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
stream = get_stream_info(ctx, str_id);
if (!stream)
return -EINVAL;
/* update bytes sent */
stream->cumm_bytes += bytes;
dev_dbg(dev, "bytes copied %d inc by %ld\n", stream->cumm_bytes, bytes);
memcpy_fromio(&fw_tstamp,
((void *)(ctx->mailbox + ctx->tstamp)
+(str_id * sizeof(fw_tstamp))),
sizeof(fw_tstamp));
fw_tstamp.bytes_copied = stream->cumm_bytes;
dev_dbg(dev, "bytes sent to fw %llu inc by %ld\n",
fw_tstamp.bytes_copied, bytes);
addr = ((void *)(ctx->mailbox + ctx->tstamp)) +
(str_id * sizeof(fw_tstamp));
offset = offsetof(struct snd_sst_tstamp, bytes_copied);
sst_shim_write(addr, offset, fw_tstamp.bytes_copied);
return 0;
}
static int sst_cdev_set_metadata(struct device *dev,
unsigned int str_id, struct snd_compr_metadata *metadata)
{
int retval = 0;
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
dev_dbg(dev, "set metadata for stream %d\n", str_id);
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
dev_dbg(dev, "pipe id = %d\n", str_info->pipe_id);
retval = sst_prepare_and_post_msg(ctx, str_info->task_id, IPC_CMD,
IPC_IA_SET_STREAM_PARAMS_MRFLD, str_info->pipe_id,
sizeof(*metadata), metadata, NULL,
true, true, true, false);
return retval;
}
static int sst_cdev_stream_pause(struct device *dev, unsigned int str_id)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
return sst_pause_stream(ctx, str_id);
}
static int sst_cdev_stream_pause_release(struct device *dev,
unsigned int str_id)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
return sst_resume_stream(ctx, str_id);
}
static int sst_cdev_stream_start(struct device *dev, unsigned int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
str_info->prev = str_info->status;
str_info->status = STREAM_RUNNING;
return sst_start_stream(ctx, str_id);
}
static int sst_cdev_stream_drop(struct device *dev, unsigned int str_id)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
return sst_drop_stream(ctx, str_id);
}
static int sst_cdev_stream_drain(struct device *dev, unsigned int str_id)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
return sst_drain_stream(ctx, str_id, false);
}
static int sst_cdev_stream_partial_drain(struct device *dev,
unsigned int str_id)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
return sst_drain_stream(ctx, str_id, true);
}
static int sst_cdev_tstamp(struct device *dev, unsigned int str_id,
struct snd_compr_tstamp *tstamp)
{
struct snd_sst_tstamp fw_tstamp = {0,};
struct stream_info *stream;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
memcpy_fromio(&fw_tstamp,
((void *)(ctx->mailbox + ctx->tstamp)
+(str_id * sizeof(fw_tstamp))),
sizeof(fw_tstamp));
stream = get_stream_info(ctx, str_id);
if (!stream)
return -EINVAL;
dev_dbg(dev, "rb_counter %llu in bytes\n", fw_tstamp.ring_buffer_counter);
tstamp->copied_total = fw_tstamp.ring_buffer_counter;
tstamp->pcm_frames = fw_tstamp.frames_decoded;
tstamp->pcm_io_frames = div_u64(fw_tstamp.hardware_counter,
(u64)stream->num_ch * SST_GET_BYTES_PER_SAMPLE(24));
tstamp->sampling_rate = fw_tstamp.sampling_frequency;
dev_dbg(dev, "PCM = %u\n", tstamp->pcm_io_frames);
dev_dbg(dev, "Ptr Query on strid = %d copied_total %d, decodec %d\n",
str_id, tstamp->copied_total, tstamp->pcm_frames);
dev_dbg(dev, "rendered %d\n", tstamp->pcm_io_frames);
return 0;
}
static int sst_cdev_caps(struct snd_compr_caps *caps)
{
caps->num_codecs = NUM_CODEC;
caps->min_fragment_size = MIN_FRAGMENT_SIZE; /* 50KB */
caps->max_fragment_size = MAX_FRAGMENT_SIZE; /* 1024KB */
caps->min_fragments = MIN_FRAGMENT;
caps->max_fragments = MAX_FRAGMENT;
caps->codecs[0] = SND_AUDIOCODEC_MP3;
caps->codecs[1] = SND_AUDIOCODEC_AAC;
return 0;
}
static struct snd_compr_codec_caps caps_mp3 = {
.num_descriptors = 1,
.descriptor[0].max_ch = 2,
.descriptor[0].sample_rates[0] = 48000,
.descriptor[0].sample_rates[1] = 44100,
.descriptor[0].sample_rates[2] = 32000,
.descriptor[0].sample_rates[3] = 16000,
.descriptor[0].sample_rates[4] = 8000,
.descriptor[0].num_sample_rates = 5,
.descriptor[0].bit_rate[0] = 320,
.descriptor[0].bit_rate[1] = 192,
.descriptor[0].num_bitrates = 2,
.descriptor[0].profiles = 0,
.descriptor[0].modes = SND_AUDIOCHANMODE_MP3_STEREO,
.descriptor[0].formats = 0,
};
static struct snd_compr_codec_caps caps_aac = {
.num_descriptors = 2,
.descriptor[1].max_ch = 2,
.descriptor[0].sample_rates[0] = 48000,
.descriptor[0].sample_rates[1] = 44100,
.descriptor[0].sample_rates[2] = 32000,
.descriptor[0].sample_rates[3] = 16000,
.descriptor[0].sample_rates[4] = 8000,
.descriptor[0].num_sample_rates = 5,
.descriptor[1].bit_rate[0] = 320,
.descriptor[1].bit_rate[1] = 192,
.descriptor[1].num_bitrates = 2,
.descriptor[1].profiles = 0,
.descriptor[1].modes = 0,
.descriptor[1].formats =
(SND_AUDIOSTREAMFORMAT_MP4ADTS |
SND_AUDIOSTREAMFORMAT_RAW),
};
static int sst_cdev_codec_caps(struct snd_compr_codec_caps *codec)
{
if (codec->codec == SND_AUDIOCODEC_MP3)
*codec = caps_mp3;
else if (codec->codec == SND_AUDIOCODEC_AAC)
*codec = caps_aac;
else
return -EINVAL;
return 0;
}
void sst_cdev_fragment_elapsed(struct intel_sst_drv *ctx, int str_id)
{
struct stream_info *stream;
dev_dbg(ctx->dev, "fragment elapsed from firmware for str_id %d\n",
str_id);
stream = &ctx->streams[str_id];
if (stream->compr_cb)
stream->compr_cb(stream->compr_cb_param);
}
/*
* sst_close_pcm_stream - Close PCM interface
*
* @str_id: stream id to be closed
*
* This function is called by MID sound card driver to close
* an existing pcm interface
*/
static int sst_close_pcm_stream(struct device *dev, unsigned int str_id)
{
struct stream_info *stream;
int retval = 0;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
stream = get_stream_info(ctx, str_id);
if (!stream) {
dev_err(ctx->dev, "stream info is NULL for str %d!!!\n", str_id);
return -EINVAL;
}
if (stream->status == STREAM_RESET) {
/* silently fail here as we have cleaned the stream earlier */
dev_dbg(ctx->dev, "stream in reset state...\n");
retval = 0;
goto put;
}
retval = free_stream_context(ctx, str_id);
put:
stream->pcm_substream = NULL;
stream->status = STREAM_UN_INIT;
stream->period_elapsed = NULL;
ctx->stream_cnt--;
if (retval)
dev_err(ctx->dev, "free stream returned err %d\n", retval);
dev_dbg(ctx->dev, "Exit\n");
return 0;
}
static inline int sst_calc_tstamp(struct intel_sst_drv *ctx,
struct pcm_stream_info *info,
struct snd_pcm_substream *substream,
struct snd_sst_tstamp *fw_tstamp)
{
size_t delay_bytes, delay_frames;
size_t buffer_sz;
u32 pointer_bytes, pointer_samples;
dev_dbg(ctx->dev, "mrfld ring_buffer_counter %llu in bytes\n",
fw_tstamp->ring_buffer_counter);
dev_dbg(ctx->dev, "mrfld hardware_counter %llu in bytes\n",
fw_tstamp->hardware_counter);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
delay_bytes = (size_t) (fw_tstamp->ring_buffer_counter -
fw_tstamp->hardware_counter);
else
delay_bytes = (size_t) (fw_tstamp->hardware_counter -
fw_tstamp->ring_buffer_counter);
delay_frames = bytes_to_frames(substream->runtime, delay_bytes);
buffer_sz = snd_pcm_lib_buffer_bytes(substream);
div_u64_rem(fw_tstamp->ring_buffer_counter, buffer_sz, &pointer_bytes);
pointer_samples = bytes_to_samples(substream->runtime, pointer_bytes);
dev_dbg(ctx->dev, "pcm delay %zu in bytes\n", delay_bytes);
info->buffer_ptr = pointer_samples / substream->runtime->channels;
info->pcm_delay = delay_frames / substream->runtime->channels;
dev_dbg(ctx->dev, "buffer ptr %llu pcm_delay rep: %llu\n",
info->buffer_ptr, info->pcm_delay);
return 0;
}
static int sst_read_timestamp(struct device *dev, struct pcm_stream_info *info)
{
struct stream_info *stream;
struct snd_pcm_substream *substream;
struct snd_sst_tstamp fw_tstamp;
unsigned int str_id;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
str_id = info->str_id;
stream = get_stream_info(ctx, str_id);
if (!stream)
return -EINVAL;
if (!stream->pcm_substream)
return -EINVAL;
substream = stream->pcm_substream;
memcpy_fromio(&fw_tstamp,
((void *)(ctx->mailbox + ctx->tstamp)
+ (str_id * sizeof(fw_tstamp))),
sizeof(fw_tstamp));
return sst_calc_tstamp(ctx, info, substream, &fw_tstamp);
}
static int sst_stream_start(struct device *dev, int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
str_info->prev = str_info->status;
str_info->status = STREAM_RUNNING;
sst_start_stream(ctx, str_id);
return 0;
}
static int sst_stream_drop(struct device *dev, int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
str_info->prev = STREAM_UN_INIT;
str_info->status = STREAM_INIT;
return sst_drop_stream(ctx, str_id);
}
static int sst_stream_pause(struct device *dev, int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
return sst_pause_stream(ctx, str_id);
}
static int sst_stream_resume(struct device *dev, int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
return sst_resume_stream(ctx, str_id);
}
static int sst_stream_init(struct device *dev, struct pcm_stream_info *str_info)
{
int str_id = 0;
struct stream_info *stream;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
str_id = str_info->str_id;
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
stream = get_stream_info(ctx, str_id);
if (!stream)
return -EINVAL;
dev_dbg(ctx->dev, "setting the period ptrs\n");
stream->pcm_substream = str_info->arg;
stream->period_elapsed = str_info->period_elapsed;
stream->sfreq = str_info->sfreq;
stream->prev = stream->status;
stream->status = STREAM_INIT;
dev_dbg(ctx->dev,
"pcm_substream %p, period_elapsed %p, sfreq %d, status %d\n",
stream->pcm_substream, stream->period_elapsed,
stream->sfreq, stream->status);
return 0;
}
/*
* sst_set_byte_stream - Set generic params
*
* @cmd: control cmd to be set
* @arg: command argument
*
* This function is called by MID sound card driver to configure
* SST runtime params.
*/
static int sst_send_byte_stream(struct device *dev,
struct snd_sst_bytes_v2 *bytes)
{
int ret_val = 0;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (NULL == bytes)
return -EINVAL;
ret_val = pm_runtime_get_sync(ctx->dev);
if (ret_val < 0)
return ret_val;
ret_val = sst_send_byte_stream_mrfld(ctx, bytes);
sst_pm_runtime_put(ctx);
return ret_val;
}
static struct sst_ops pcm_ops = {
.open = sst_open_pcm_stream,
.stream_init = sst_stream_init,
.stream_start = sst_stream_start,
.stream_drop = sst_stream_drop,
.stream_pause = sst_stream_pause,
.stream_pause_release = sst_stream_resume,
.stream_read_tstamp = sst_read_timestamp,
.send_byte_stream = sst_send_byte_stream,
.close = sst_close_pcm_stream,
.power = sst_power_control,
};
static struct compress_sst_ops compr_ops = {
.open = sst_cdev_open,
.close = sst_cdev_close,
.stream_pause = sst_cdev_stream_pause,
.stream_pause_release = sst_cdev_stream_pause_release,
.stream_start = sst_cdev_stream_start,
.stream_drop = sst_cdev_stream_drop,
.stream_drain = sst_cdev_stream_drain,
.stream_partial_drain = sst_cdev_stream_partial_drain,
.tstamp = sst_cdev_tstamp,
.ack = sst_cdev_ack,
.get_caps = sst_cdev_caps,
.get_codec_caps = sst_cdev_codec_caps,
.set_metadata = sst_cdev_set_metadata,
.power = sst_power_control,
};
static struct sst_device sst_dsp_device = {
.name = "Intel(R) SST LPE",
.dev = NULL,
.ops = &pcm_ops,
.compr_ops = &compr_ops,
};
/*
* sst_register - function to register DSP
*
* This functions registers DSP with the platform driver
*/
int sst_register(struct device *dev)
{
int ret_val;
sst_dsp_device.dev = dev;
ret_val = sst_register_dsp(&sst_dsp_device);
if (ret_val)
dev_err(dev, "Unable to register DSP with platform driver\n");
return ret_val;
}
int sst_unregister(struct device *dev)
{
return sst_unregister_dsp(&sst_dsp_device);
}
