diff options
| author | Rander Wang <rander.wang@intel.com> | 2023-02-02 15:29:53 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-02-03 12:03:54 +0000 |
| commit | faceb3445aaf1704583744b48c622dbc96ef9ab2 (patch) | |
| tree | 171703d81bf3fa88fd19c72d7fb50dca8e9fcf01 /sound | |
| parent | 7f956297272bbc3535a02fa32579375a0d40283c (diff) | |
ASoC: SOF: Intel: mtl: add get_stream_position support
Get HDaudio link position for current stream delay calculation
from hda registers.
Signed-off-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230202132954.26773-9-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/sof/intel/mtl.c | 14 | ||||
| -rw-r--r-- | sound/soc/sof/intel/mtl.h | 6 |
2 files changed, 20 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/mtl.c b/sound/soc/sof/intel/mtl.c index 904ae42534e1..67b8ccbc2e94 100644 --- a/sound/soc/sof/intel/mtl.c +++ b/sound/soc/sof/intel/mtl.c @@ -581,6 +581,18 @@ static int mtl_dsp_disable_interrupts(struct snd_sof_dev *sdev) return mtl_enable_interrupts(sdev, false); } +static u64 mtl_dsp_get_stream_hda_link_position(struct snd_sof_dev *sdev, + struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct hdac_stream *hstream = substream->runtime->private_data; + u32 llp_l, llp_u; + + llp_l = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, MTL_PPLCLLPL(hstream->index)); + llp_u = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, MTL_PPLCLLPU(hstream->index)); + return ((u64)llp_u << 32) | llp_l; +} + /* Meteorlake ops */ struct snd_sof_dsp_ops sof_mtl_ops; EXPORT_SYMBOL_NS(sof_mtl_ops, SND_SOC_SOF_INTEL_HDA_COMMON); @@ -619,6 +631,8 @@ int sof_mtl_ops_init(struct snd_sof_dev *sdev) /* dsp core get/put */ /* TODO: add core_get and core_put */ + sof_mtl_ops.get_stream_position = mtl_dsp_get_stream_hda_link_position; + sdev->private = devm_kzalloc(sdev->dev, sizeof(struct sof_ipc4_fw_data), GFP_KERNEL); if (!sdev->private) return -ENOMEM; diff --git a/sound/soc/sof/intel/mtl.h b/sound/soc/sof/intel/mtl.h index 0fd4e6fe09b8..26418fb08807 100644 --- a/sound/soc/sof/intel/mtl.h +++ b/sound/soc/sof/intel/mtl.h @@ -6,6 +6,12 @@ * Copyright(c) 2020-2022 Intel Corporation. All rights reserved. */ +/* HDA Registers */ +#define MTL_PPLCLLPL_BASE 0x948 +#define MTL_PPLCLLPU_STRIDE 0x10 +#define MTL_PPLCLLPL(x) (MTL_PPLCLLPL_BASE + (x) * MTL_PPLCLLPU_STRIDE) +#define MTL_PPLCLLPU(x) (MTL_PPLCLLPL_BASE + 0x4 + (x) * MTL_PPLCLLPU_STRIDE) + /* DSP Registers */ #define MTL_HFDSSCS 0x1000 #define MTL_HFDSSCS_SPA_MASK BIT(16) |