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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2019-2021 Intel Corporation. All rights reserved.
//
// Author: Cezary Rojewski <cezary.rojewski@intel.com>
// Converted to SOF client:
// Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
// Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
//
#include <linux/module.h>
#include <sound/hdaudio_ext.h>
#include <sound/soc.h>
#include "../sof-priv.h"
#include "../sof-client-probes.h"
#include "../sof-client.h"
#include "hda.h"
static inline struct hdac_ext_stream *
hda_compr_get_stream(struct snd_compr_stream *cstream)
{
return cstream->runtime->private_data;
}
static int hda_probes_compr_assign(struct sof_client_dev *cdev,
struct snd_compr_stream *cstream,
struct snd_soc_dai *dai, u32 *stream_id)
{
struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
struct hdac_ext_stream *hext_stream;
hext_stream = hda_dsp_stream_get(sdev, cstream->direction, 0);
if (!hext_stream)
return -EBUSY;
hdac_stream(hext_stream)->curr_pos = 0;
hdac_stream(hext_stream)->cstream = cstream;
cstream->runtime->private_data = hext_stream;
*stream_id = hdac_stream(hext_stream)->stream_tag;
return 0;
}
static int hda_probes_compr_free(struct sof_client_dev *cdev,
struct snd_compr_stream *cstream,
struct snd_soc_dai *dai)
{
struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
int ret;
ret = hda_dsp_stream_put(sdev, cstream->direction,
hdac_stream(hext_stream)->stream_tag);
if (ret < 0) {
dev_dbg(sdev->dev, "stream put failed: %d\n", ret);
return ret;
}
hdac_stream(hext_stream)->cstream = NULL;
cstream->runtime->private_data = NULL;
return 0;
}
static int hda_probes_compr_set_params(struct sof_client_dev *cdev,
struct snd_compr_stream *cstream,
struct snd_compr_params *params,
struct snd_soc_dai *dai)
{
struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
struct hdac_stream *hstream = hdac_stream(hext_stream);
struct snd_dma_buffer *dmab;
u32 bits, rate;
int bps, ret;
dmab = cstream->runtime->dma_buffer_p;
/* compr params do not store bit depth, default to S32_LE */
bps = snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32_LE);
if (bps < 0)
return bps;
bits = hda_dsp_get_bits(sdev, bps);
rate = hda_dsp_get_mult_div(sdev, params->codec.sample_rate);
hstream->format_val = rate | bits | (params->codec.ch_out - 1);
hstream->bufsize = cstream->runtime->buffer_size;
hstream->period_bytes = cstream->runtime->fragment_size;
hstream->no_period_wakeup = 0;
ret = hda_dsp_stream_hw_params(sdev, hext_stream, dmab, NULL);
if (ret < 0) {
dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret);
return ret;
}
return 0;
}
static int hda_probes_compr_trigger(struct sof_client_dev *cdev,
struct snd_compr_stream *cstream,
int cmd, struct snd_soc_dai *dai)
{
struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
return hda_dsp_stream_trigger(sdev, hext_stream, cmd);
}
static int hda_probes_compr_pointer(struct sof_client_dev *cdev,
struct snd_compr_stream *cstream,
struct snd_compr_tstamp *tstamp,
struct snd_soc_dai *dai)
{
struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
struct snd_soc_pcm_stream *pstream;
pstream = &dai->driver->capture;
tstamp->copied_total = hdac_stream(hext_stream)->curr_pos;
tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates);
return 0;
}
/* SOF client implementation */
static const struct sof_probes_host_ops hda_probes_ops = {
.assign = hda_probes_compr_assign,
.free = hda_probes_compr_free,
.set_params = hda_probes_compr_set_params,
.trigger = hda_probes_compr_trigger,
.pointer = hda_probes_compr_pointer,
};
int hda_probes_register(struct snd_sof_dev *sdev)
{
return sof_client_dev_register(sdev, "hda-probes", 0, &hda_probes_ops,
sizeof(hda_probes_ops));
}
void hda_probes_unregister(struct snd_sof_dev *sdev)
{
sof_client_dev_unregister(sdev, "hda-probes", 0);
}
MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT);
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