sound/soc/sof/intel/hda-compress.c

   1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
   2 //
   3 // This file is provided under a dual BSD/GPLv2 license.  When using or
   4 // redistributing this file, you may do so under either license.
   5 //
   6 // Copyright(c) 2019-2020 Intel Corporation. All rights reserved.
   7 //
   8 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
   9 //
  10
  11 #include <sound/hdaudio_ext.h>
  12 #include <sound/soc.h>
  13 #include "../sof-priv.h"
  14 #include "hda.h"
  15
  16 static inline struct hdac_ext_stream *
  17 hda_compr_get_stream(struct snd_compr_stream *cstream)
  18 {
  19         return cstream->runtime->private_data;
  20 }
  21
  22 int hda_probe_compr_assign(struct snd_sof_dev *sdev,
  23                            struct snd_compr_stream *cstream,
  24                            struct snd_soc_dai *dai)
  25 {
  26         struct hdac_ext_stream *stream;
  27
  28         stream = hda_dsp_stream_get(sdev, cstream->direction);
  29         if (!stream)
  30                 return -EBUSY;
  31
  32         hdac_stream(stream)->curr_pos = 0;
  33         hdac_stream(stream)->cstream = cstream;
  34         cstream->runtime->private_data = stream;
  35
  36         return hdac_stream(stream)->stream_tag;
  37 }
  38
  39 int hda_probe_compr_free(struct snd_sof_dev *sdev,
  40                          struct snd_compr_stream *cstream,
  41                          struct snd_soc_dai *dai)
  42 {
  43         struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
  44         int ret;
  45
  46         ret = hda_dsp_stream_put(sdev, cstream->direction,
  47                                  hdac_stream(stream)->stream_tag);
  48         if (ret < 0) {
  49                 dev_dbg(sdev->dev, "stream put failed: %d\n", ret);
  50                 return ret;
  51         }
  52
  53         hdac_stream(stream)->cstream = NULL;
  54         cstream->runtime->private_data = NULL;
  55
  56         return 0;
  57 }
  58
  59 int hda_probe_compr_set_params(struct snd_sof_dev *sdev,
  60                                struct snd_compr_stream *cstream,
  61                                struct snd_compr_params *params,
  62                                struct snd_soc_dai *dai)
  63 {
  64         struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
  65         struct hdac_stream *hstream = hdac_stream(stream);
  66         struct snd_dma_buffer *dmab;
  67         u32 bits, rate;
  68         int bps, ret;
  69
  70         dmab = cstream->runtime->dma_buffer_p;
  71         /* compr params do not store bit depth, default to S32_LE */
  72         bps = snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32_LE);
  73         if (bps < 0)
  74                 return bps;
  75         bits = hda_dsp_get_bits(sdev, bps);
  76         rate = hda_dsp_get_mult_div(sdev, params->codec.sample_rate);
  77
  78         hstream->format_val = rate | bits | (params->codec.ch_out - 1);
  79         hstream->bufsize = cstream->runtime->buffer_size;
  80         hstream->period_bytes = cstream->runtime->fragment_size;
  81         hstream->no_period_wakeup = 0;
  82
  83         ret = hda_dsp_stream_hw_params(sdev, stream, dmab, NULL);
  84         if (ret < 0) {
  85                 dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret);
  86                 return ret;
  87         }
  88
  89         return 0;
  90 }
  91
  92 int hda_probe_compr_trigger(struct snd_sof_dev *sdev,
  93                             struct snd_compr_stream *cstream, int cmd,
  94                             struct snd_soc_dai *dai)
  95 {
  96         struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
  97
  98         return hda_dsp_stream_trigger(sdev, stream, cmd);
  99 }
 100
 101 int hda_probe_compr_pointer(struct snd_sof_dev *sdev,
 102                             struct snd_compr_stream *cstream,
 103                             struct snd_compr_tstamp *tstamp,
 104                             struct snd_soc_dai *dai)
 105 {
 106         struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
 107         struct snd_soc_pcm_stream *pstream;
 108
 109         pstream = &dai->driver->capture;
 110         tstamp->copied_total = hdac_stream(stream)->curr_pos;
 111         tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates);
 112
 113         return 0;
 114 }