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