Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Liam Girdwood | 921 | 66.69% | 1 | 3.45% |
Ranjani Sridharan | 161 | 11.66% | 4 | 13.79% |
Peter Ujfalusi | 128 | 9.27% | 6 | 20.69% |
Pierre-Louis Bossart | 124 | 8.98% | 9 | 31.03% |
Kai Vehmanen | 28 | 2.03% | 2 | 6.90% |
Bard Liao | 4 | 0.29% | 1 | 3.45% |
Cezary Rojewski | 4 | 0.29% | 1 | 3.45% |
Kuninori Morimoto | 4 | 0.29% | 2 | 6.90% |
Keyon Jie | 3 | 0.22% | 1 | 3.45% |
Marcin Rajwa | 3 | 0.22% | 1 | 3.45% |
Curtis Malainey | 1 | 0.07% | 1 | 3.45% |
Total | 1381 | 29 |
// 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) 2018 Intel Corporation // // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> // Ranjani Sridharan <ranjani.sridharan@linux.intel.com> // Rander Wang <rander.wang@intel.com> // Keyon Jie <yang.jie@linux.intel.com> // /* * Hardware interface for generic Intel audio DSP HDA IP */ #include <linux/moduleparam.h> #include <sound/hda_register.h> #include <sound/pcm_params.h> #include <trace/events/sof_intel.h> #include "../sof-audio.h" #include "../ops.h" #include "hda.h" #define SDnFMT_BASE(x) ((x) << 14) #define SDnFMT_MULT(x) (((x) - 1) << 11) #define SDnFMT_DIV(x) (((x) - 1) << 8) #define SDnFMT_BITS(x) ((x) << 4) #define SDnFMT_CHAN(x) ((x) << 0) static bool hda_always_enable_dmi_l1; module_param_named(always_enable_dmi_l1, hda_always_enable_dmi_l1, bool, 0444); MODULE_PARM_DESC(always_enable_dmi_l1, "SOF HDA always enable DMI l1"); static bool hda_disable_rewinds; module_param_named(disable_rewinds, hda_disable_rewinds, bool, 0444); MODULE_PARM_DESC(disable_rewinds, "SOF HDA disable rewinds"); u32 hda_dsp_get_mult_div(struct snd_sof_dev *sdev, int rate) { switch (rate) { case 8000: return SDnFMT_DIV(6); case 9600: return SDnFMT_DIV(5); case 11025: return SDnFMT_BASE(1) | SDnFMT_DIV(4); case 16000: return SDnFMT_DIV(3); case 22050: return SDnFMT_BASE(1) | SDnFMT_DIV(2); case 32000: return SDnFMT_DIV(3) | SDnFMT_MULT(2); case 44100: return SDnFMT_BASE(1); case 48000: return 0; case 88200: return SDnFMT_BASE(1) | SDnFMT_MULT(2); case 96000: return SDnFMT_MULT(2); case 176400: return SDnFMT_BASE(1) | SDnFMT_MULT(4); case 192000: return SDnFMT_MULT(4); default: dev_warn(sdev->dev, "can't find div rate %d using 48kHz\n", rate); return 0; /* use 48KHz if not found */ } }; u32 hda_dsp_get_bits(struct snd_sof_dev *sdev, int sample_bits) { switch (sample_bits) { case 8: return SDnFMT_BITS(0); case 16: return SDnFMT_BITS(1); case 20: return SDnFMT_BITS(2); case 24: return SDnFMT_BITS(3); case 32: return SDnFMT_BITS(4); default: dev_warn(sdev->dev, "can't find %d bits using 16bit\n", sample_bits); return SDnFMT_BITS(1); /* use 16bits format if not found */ } }; int hda_dsp_pcm_hw_params(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_sof_platform_stream_params *platform_params) { struct hdac_stream *hstream = substream->runtime->private_data; struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream); struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; struct snd_dma_buffer *dmab; int ret; hstream->substream = substream; dmab = substream->runtime->dma_buffer_p; /* * Use the codec required format val (which is link_bps adjusted) when * the DSP is not in use */ if (!sdev->dspless_mode_selected) { u32 rate = hda_dsp_get_mult_div(sdev, params_rate(params)); u32 bits = hda_dsp_get_bits(sdev, params_width(params)); hstream->format_val = rate | bits | (params_channels(params) - 1); } hstream->bufsize = params_buffer_bytes(params); hstream->period_bytes = params_period_bytes(params); hstream->no_period_wakeup = (params->info & SNDRV_PCM_INFO_NO_PERIOD_WAKEUP) && (params->flags & SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP); ret = hda_dsp_stream_hw_params(sdev, hext_stream, dmab, params); if (ret < 0) { dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret); return ret; } /* enable SPIB when rewinds are disabled */ if (hda_disable_rewinds) hda_dsp_stream_spib_config(sdev, hext_stream, HDA_DSP_SPIB_ENABLE, 0); else hda_dsp_stream_spib_config(sdev, hext_stream, HDA_DSP_SPIB_DISABLE, 0); if (hda) platform_params->no_ipc_position = hda->no_ipc_position; platform_params->stream_tag = hstream->stream_tag; return 0; } EXPORT_SYMBOL_NS(hda_dsp_pcm_hw_params, SND_SOC_SOF_INTEL_HDA_COMMON); /* update SPIB register with appl position */ int hda_dsp_pcm_ack(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) { struct hdac_stream *hstream = substream->runtime->private_data; struct snd_pcm_runtime *runtime = substream->runtime; ssize_t appl_pos, buf_size; u32 spib; appl_pos = frames_to_bytes(runtime, runtime->control->appl_ptr); buf_size = frames_to_bytes(runtime, runtime->buffer_size); spib = appl_pos % buf_size; /* Allowable value for SPIB is 1 byte to max buffer size */ if (!spib) spib = buf_size; sof_io_write(sdev, hstream->spib_addr, spib); return 0; } EXPORT_SYMBOL_NS(hda_dsp_pcm_ack, SND_SOC_SOF_INTEL_HDA_COMMON); int hda_dsp_pcm_trigger(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream, int cmd) { struct hdac_stream *hstream = substream->runtime->private_data; struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream); return hda_dsp_stream_trigger(sdev, hext_stream, cmd); } EXPORT_SYMBOL_NS(hda_dsp_pcm_trigger, SND_SOC_SOF_INTEL_HDA_COMMON); snd_pcm_uframes_t hda_dsp_pcm_pointer(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *scomp = sdev->component; struct hdac_stream *hstream = substream->runtime->private_data; struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; struct snd_sof_pcm *spcm; snd_pcm_uframes_t pos; spcm = snd_sof_find_spcm_dai(scomp, rtd); if (!spcm) { dev_warn_ratelimited(sdev->dev, "warn: can't find PCM with DAI ID %d\n", rtd->dai_link->id); return 0; } if (hda && !hda->no_ipc_position) { /* read position from IPC position */ pos = spcm->stream[substream->stream].posn.host_posn; goto found; } pos = hda_dsp_stream_get_position(hstream, substream->stream, true); found: pos = bytes_to_frames(substream->runtime, pos); trace_sof_intel_hda_dsp_pcm(sdev, hstream, substream, pos); return pos; } EXPORT_SYMBOL_NS(hda_dsp_pcm_pointer, SND_SOC_SOF_INTEL_HDA_COMMON); int hda_dsp_pcm_open(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_component *scomp = sdev->component; struct hdac_ext_stream *dsp_stream; struct snd_sof_pcm *spcm; int direction = substream->stream; u32 flags = 0; spcm = snd_sof_find_spcm_dai(scomp, rtd); if (!spcm) { dev_err(sdev->dev, "error: can't find PCM with DAI ID %d\n", rtd->dai_link->id); return -EINVAL; } /* * if we want the .ack to work, we need to prevent the control from being mapped. * The status can still be mapped. */ if (hda_disable_rewinds) runtime->hw.info |= SNDRV_PCM_INFO_NO_REWINDS | SNDRV_PCM_INFO_SYNC_APPLPTR; /* * All playback streams are DMI L1 capable, capture streams need * pause push/release to be disabled */ if (hda_always_enable_dmi_l1 && direction == SNDRV_PCM_STREAM_CAPTURE) runtime->hw.info &= ~SNDRV_PCM_INFO_PAUSE; if (hda_always_enable_dmi_l1 || direction == SNDRV_PCM_STREAM_PLAYBACK || spcm->stream[substream->stream].d0i3_compatible) flags |= SOF_HDA_STREAM_DMI_L1_COMPATIBLE; dsp_stream = hda_dsp_stream_get(sdev, direction, flags); if (!dsp_stream) { dev_err(sdev->dev, "error: no stream available\n"); return -ENODEV; } /* minimum as per HDA spec */ snd_pcm_hw_constraint_step(substream->runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4); /* avoid circular buffer wrap in middle of period */ snd_pcm_hw_constraint_integer(substream->runtime, SNDRV_PCM_HW_PARAM_PERIODS); /* Limit the maximum number of periods to not exceed the BDL entries count */ if (runtime->hw.periods_max > HDA_DSP_MAX_BDL_ENTRIES) snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIODS, runtime->hw.periods_min, HDA_DSP_MAX_BDL_ENTRIES); /* Only S16 and S32 supported by HDA hardware when used without DSP */ if (sdev->dspless_mode_selected) snd_pcm_hw_constraint_mask64(substream->runtime, SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S32); /* * The dsp_max_burst_size_in_ms is the length of the maximum burst size * of the host DMA in the ALSA buffer. * * On playback start the DMA will transfer dsp_max_burst_size_in_ms * amount of data in one initial burst to fill up the host DMA buffer. * Consequent DMA burst sizes are shorter and their length can vary. * To make sure that userspace allocate large enough ALSA buffer we need * to place a constraint on the buffer time. * * On capture the DMA will transfer 1ms chunks. * * Exact dsp_max_burst_size_in_ms constraint is racy, so set the * constraint to a minimum of 2x dsp_max_burst_size_in_ms. */ if (spcm->stream[direction].dsp_max_burst_size_in_ms) snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME, spcm->stream[direction].dsp_max_burst_size_in_ms * USEC_PER_MSEC * 2, UINT_MAX); /* binding pcm substream to hda stream */ substream->runtime->private_data = &dsp_stream->hstream; /* * Reset the llp cache values (they are used for LLP compensation in * case the counter is not reset) */ dsp_stream->pplcllpl = 0; dsp_stream->pplcllpu = 0; return 0; } EXPORT_SYMBOL_NS(hda_dsp_pcm_open, SND_SOC_SOF_INTEL_HDA_COMMON); int hda_dsp_pcm_close(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) { struct hdac_stream *hstream = substream->runtime->private_data; int direction = substream->stream; int ret; ret = hda_dsp_stream_put(sdev, direction, hstream->stream_tag); if (ret) { dev_dbg(sdev->dev, "stream %s not opened!\n", substream->name); return -ENODEV; } /* unbinding pcm substream to hda stream */ substream->runtime->private_data = NULL; return 0; } EXPORT_SYMBOL_NS(hda_dsp_pcm_close, SND_SOC_SOF_INTEL_HDA_COMMON);
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