/* * skl-pcm.c -ASoC HDA Platform driver file implementing PCM functionality * * Copyright (C) 2014-2015 Intel Corp * Author: Jeeja KP <jeeja.kp@intel.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * */ #include <linux/pci.h> #include <linux/pm_runtime.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include "skl.h" #include "skl-topology.h" #include "skl-sst-dsp.h" #include "skl-sst-ipc.h" #define HDA_MONO 1 #define HDA_STEREO 2 #define HDA_QUAD 4 static struct snd_pcm_hardware azx_pcm_hw = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_SYNC_START | SNDRV_PCM_INFO_HAS_WALL_CLOCK | /* legacy */ SNDRV_PCM_INFO_HAS_LINK_ATIME | SNDRV_PCM_INFO_NO_PERIOD_WAKEUP), .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE, .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000, .rate_min = 8000, .rate_max = 48000, .channels_min = 1, .channels_max = HDA_QUAD, .buffer_bytes_max = AZX_MAX_BUF_SIZE, .period_bytes_min = 128, .period_bytes_max = AZX_MAX_BUF_SIZE / 2, .periods_min = 2, .periods_max = AZX_MAX_FRAG, .fifo_size = 0, }; static inline struct hdac_ext_stream *get_hdac_ext_stream(struct snd_pcm_substream *substream) { return substream->runtime->private_data; } static struct hdac_ext_bus *get_bus_ctx(struct snd_pcm_substream *substream) { struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); struct hdac_stream *hstream = hdac_stream(stream); struct hdac_bus *bus = hstream->bus; return hbus_to_ebus(bus); } static int skl_substream_alloc_pages(struct hdac_ext_bus *ebus, struct snd_pcm_substream *substream, size_t size) { struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); hdac_stream(stream)->bufsize = 0; hdac_stream(stream)->period_bytes = 0; hdac_stream(stream)->format_val = 0; return snd_pcm_lib_malloc_pages(substream, size); } static int skl_substream_free_pages(struct hdac_bus *bus, struct snd_pcm_substream *substream) { return snd_pcm_lib_free_pages(substream); } static void skl_set_pcm_constrains(struct hdac_ext_bus *ebus, struct snd_pcm_runtime *runtime) { snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); /* avoid wrap-around with wall-clock */ snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME, 20, 178000000); } static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *ebus) { if (ebus->ppcap) return HDAC_EXT_STREAM_TYPE_HOST; else return HDAC_EXT_STREAM_TYPE_COUPLED; } /* * check if the stream opened is marked as ignore_suspend by machine, if so * then enable suspend_active refcount * * The count supend_active does not need lock as it is used in open/close * and suspend context */ static void skl_set_suspend_active(struct snd_pcm_substream *substream, struct snd_soc_dai *dai, bool enable) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct snd_soc_dapm_widget *w; struct skl *skl = ebus_to_skl(ebus); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) w = dai->playback_widget; else w = dai->capture_widget; if (w->ignore_suspend && enable) skl->supend_active++; else if (w->ignore_suspend && !enable) skl->supend_active--; } static int skl_pcm_open(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *stream; struct snd_pcm_runtime *runtime = substream->runtime; struct skl_dma_params *dma_params; dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); stream = snd_hdac_ext_stream_assign(ebus, substream, skl_get_host_stream_type(ebus)); if (stream == NULL) return -EBUSY; skl_set_pcm_constrains(ebus, runtime); /* * disable WALLCLOCK timestamps for capture streams * until we figure out how to handle digital inputs */ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK; /* legacy */ runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_LINK_ATIME; } runtime->private_data = stream; dma_params = kzalloc(sizeof(*dma_params), GFP_KERNEL); if (!dma_params) return -ENOMEM; dma_params->stream_tag = hdac_stream(stream)->stream_tag; snd_soc_dai_set_dma_data(dai, substream, dma_params); dev_dbg(dai->dev, "stream tag set in dma params=%d\n", dma_params->stream_tag); skl_set_suspend_active(substream, dai, true); snd_pcm_set_sync(substream); return 0; } static int skl_get_format(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct skl_dma_params *dma_params; struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); int format_val = 0; if (ebus->ppcap) { struct snd_pcm_runtime *runtime = substream->runtime; format_val = snd_hdac_calc_stream_format(runtime->rate, runtime->channels, runtime->format, 32, 0); } else { struct snd_soc_dai *codec_dai = rtd->codec_dai; dma_params = snd_soc_dai_get_dma_data(codec_dai, substream); if (dma_params) format_val = dma_params->format; } return format_val; } static int skl_be_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct skl *skl = get_skl_ctx(dai->dev); struct skl_sst *ctx = skl->skl_sst; struct skl_module_cfg *mconfig; if (dai->playback_widget->power || dai->capture_widget->power) return 0; mconfig = skl_tplg_be_get_cpr_module(dai, substream->stream); if (mconfig == NULL) return -EINVAL; return skl_dsp_set_dma_control(ctx, mconfig); } static int skl_pcm_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); unsigned int format_val; int err; dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); format_val = skl_get_format(substream, dai); dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d\n", hdac_stream(stream)->stream_tag, format_val); snd_hdac_stream_reset(hdac_stream(stream)); err = snd_hdac_stream_set_params(hdac_stream(stream), format_val); if (err < 0) return err; err = snd_hdac_stream_setup(hdac_stream(stream)); if (err < 0) return err; hdac_stream(stream)->prepared = 1; return err; } static int skl_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); struct snd_pcm_runtime *runtime = substream->runtime; struct skl_pipe_params p_params = {0}; struct skl_module_cfg *m_cfg; int ret, dma_id; dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); ret = skl_substream_alloc_pages(ebus, substream, params_buffer_bytes(params)); if (ret < 0) return ret; dev_dbg(dai->dev, "format_val, rate=%d, ch=%d, format=%d\n", runtime->rate, runtime->channels, runtime->format); dma_id = hdac_stream(stream)->stream_tag - 1; dev_dbg(dai->dev, "dma_id=%d\n", dma_id); p_params.s_fmt = snd_pcm_format_width(params_format(params)); p_params.ch = params_channels(params); p_params.s_freq = params_rate(params); p_params.host_dma_id = dma_id; p_params.stream = substream->stream; m_cfg = skl_tplg_fe_get_cpr_module(dai, p_params.stream); if (m_cfg) skl_tplg_update_pipe_params(dai->dev, m_cfg, &p_params); return 0; } static void skl_pcm_close(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct skl_dma_params *dma_params = NULL; struct skl *skl = ebus_to_skl(ebus); dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(ebus)); dma_params = snd_soc_dai_get_dma_data(dai, substream); /* * now we should set this to NULL as we are freeing by the * dma_params */ snd_soc_dai_set_dma_data(dai, substream, NULL); skl_set_suspend_active(substream, dai, false); /* * check if close is for "Reference Pin" and set back the * CGCTL.MISCBDCGE if disabled by driver */ if (!strncmp(dai->name, "Reference Pin", 13) && skl->skl_sst->miscbdcg_disabled) { skl->skl_sst->enable_miscbdcge(dai->dev, true); skl->skl_sst->miscbdcg_disabled = false; } kfree(dma_params); } static int skl_pcm_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); snd_hdac_stream_cleanup(hdac_stream(stream)); hdac_stream(stream)->prepared = 0; return skl_substream_free_pages(ebus_to_hbus(ebus), substream); } static int skl_be_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct skl_pipe_params p_params = {0}; p_params.s_fmt = snd_pcm_format_width(params_format(params)); p_params.ch = params_channels(params); p_params.s_freq = params_rate(params); p_params.stream = substream->stream; return skl_tplg_be_update_params(dai, &p_params); } static int skl_decoupled_trigger(struct snd_pcm_substream *substream, int cmd) { struct hdac_ext_bus *ebus = get_bus_ctx(substream); struct hdac_bus *bus = ebus_to_hbus(ebus); struct hdac_ext_stream *stream; int start; unsigned long cookie; struct hdac_stream *hstr; stream = get_hdac_ext_stream(substream); hstr = hdac_stream(stream); if (!hstr->prepared) return -EPIPE; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: case SNDRV_PCM_TRIGGER_RESUME: start = 1; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: start = 0; break; default: return -EINVAL; } spin_lock_irqsave(&bus->reg_lock, cookie); if (start) { snd_hdac_stream_start(hdac_stream(stream), true); snd_hdac_stream_timecounter_init(hstr, 0); } else { snd_hdac_stream_stop(hdac_stream(stream)); } spin_unlock_irqrestore(&bus->reg_lock, cookie); return 0; } static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct skl *skl = get_skl_ctx(dai->dev); struct skl_sst *ctx = skl->skl_sst; struct skl_module_cfg *mconfig; struct hdac_ext_bus *ebus = get_bus_ctx(substream); struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); struct snd_soc_dapm_widget *w; int ret; mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream); if (!mconfig) return -EIO; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) w = dai->playback_widget; else w = dai->capture_widget; switch (cmd) { case SNDRV_PCM_TRIGGER_RESUME: if (!w->ignore_suspend) { skl_pcm_prepare(substream, dai); /* * enable DMA Resume enable bit for the stream, set the * dpib & lpib position to resume before starting the * DMA */ snd_hdac_ext_stream_drsm_enable(ebus, true, hdac_stream(stream)->index); snd_hdac_ext_stream_set_dpibr(ebus, stream, stream->dpib); snd_hdac_ext_stream_set_lpib(stream, stream->lpib); } case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* * Start HOST DMA and Start FE Pipe.This is to make sure that * there are no underrun/overrun in the case when the FE * pipeline is started but there is a delay in starting the * DMA channel on the host. */ snd_hdac_ext_stream_decouple(ebus, stream, true); ret = skl_decoupled_trigger(substream, cmd); if (ret < 0) return ret; return skl_run_pipe(ctx, mconfig->pipe); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: /* * Stop FE Pipe first and stop DMA. This is to make sure that * there are no underrun/overrun in the case if there is a delay * between the two operations. */ ret = skl_stop_pipe(ctx, mconfig->pipe); if (ret < 0) return ret; ret = skl_decoupled_trigger(substream, cmd); if ((cmd == SNDRV_PCM_TRIGGER_SUSPEND) && !w->ignore_suspend) { /* save the dpib and lpib positions */ stream->dpib = readl(ebus->bus.remap_addr + AZX_REG_VS_SDXDPIB_XBASE + (AZX_REG_VS_SDXDPIB_XINTERVAL * hdac_stream(stream)->index)); stream->lpib = snd_hdac_stream_get_pos_lpib( hdac_stream(stream)); snd_hdac_ext_stream_decouple(ebus, stream, false); } break; default: return -EINVAL; } return 0; } static int skl_link_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *link_dev; struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct hdac_ext_dma_params *dma_params; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct skl_pipe_params p_params = {0}; link_dev = snd_hdac_ext_stream_assign(ebus, substream, HDAC_EXT_STREAM_TYPE_LINK); if (!link_dev) return -EBUSY; snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev); /* set the stream tag in the codec dai dma params */ dma_params = snd_soc_dai_get_dma_data(codec_dai, substream); if (dma_params) dma_params->stream_tag = hdac_stream(link_dev)->stream_tag; p_params.s_fmt = snd_pcm_format_width(params_format(params)); p_params.ch = params_channels(params); p_params.s_freq = params_rate(params); p_params.stream = substream->stream; p_params.link_dma_id = hdac_stream(link_dev)->stream_tag - 1; return skl_tplg_be_update_params(dai, &p_params); } static int skl_link_pcm_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *link_dev = snd_soc_dai_get_dma_data(dai, substream); unsigned int format_val = 0; struct skl_dma_params *dma_params; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct hdac_ext_link *link; dma_params = (struct skl_dma_params *) snd_soc_dai_get_dma_data(codec_dai, substream); if (dma_params) format_val = dma_params->format; dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n", hdac_stream(link_dev)->stream_tag, format_val, codec_dai->name); link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name); if (!link) return -EINVAL; snd_hdac_ext_bus_link_power_up(link); snd_hdac_ext_link_stream_reset(link_dev); snd_hdac_ext_link_stream_setup(link_dev, format_val); snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_dev)->stream_tag); link_dev->link_prepared = 1; return 0; } static int skl_link_pcm_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct hdac_ext_stream *link_dev = snd_soc_dai_get_dma_data(dai, substream); struct hdac_ext_bus *ebus = get_bus_ctx(substream); struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd); switch (cmd) { case SNDRV_PCM_TRIGGER_RESUME: skl_link_pcm_prepare(substream, dai); case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: snd_hdac_ext_stream_decouple(ebus, stream, true); snd_hdac_ext_link_stream_start(link_dev); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: snd_hdac_ext_link_stream_clear(link_dev); if (cmd == SNDRV_PCM_TRIGGER_SUSPEND) snd_hdac_ext_stream_decouple(ebus, stream, false); break; default: return -EINVAL; } return 0; } static int skl_link_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct hdac_ext_stream *link_dev = snd_soc_dai_get_dma_data(dai, substream); struct hdac_ext_link *link; dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); link_dev->link_prepared = 0; link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name); if (!link) return -EINVAL; snd_hdac_ext_link_clear_stream_id(link, hdac_stream(link_dev)->stream_tag); snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK); return 0; } static struct snd_soc_dai_ops skl_pcm_dai_ops = { .startup = skl_pcm_open, .shutdown = skl_pcm_close, .prepare = skl_pcm_prepare, .hw_params = skl_pcm_hw_params, .hw_free = skl_pcm_hw_free, .trigger = skl_pcm_trigger, }; static struct snd_soc_dai_ops skl_dmic_dai_ops = { .hw_params = skl_be_hw_params, }; static struct snd_soc_dai_ops skl_be_ssp_dai_ops = { .hw_params = skl_be_hw_params, .prepare = skl_be_prepare, }; static struct snd_soc_dai_ops skl_link_dai_ops = { .prepare = skl_link_pcm_prepare, .hw_params = skl_link_hw_params, .hw_free = skl_link_hw_free, .trigger = skl_link_pcm_trigger, }; static struct snd_soc_dai_driver skl_platform_dai[] = { { .name = "System Pin", .ops = &skl_pcm_dai_ops, .playback = { .stream_name = "System Playback", .channels_min = HDA_MONO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, .capture = { .stream_name = "System Capture", .channels_min = HDA_MONO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "Reference Pin", .ops = &skl_pcm_dai_ops, .capture = { .stream_name = "Reference Capture", .channels_min = HDA_MONO, .channels_max = HDA_QUAD, .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "Deepbuffer Pin", .ops = &skl_pcm_dai_ops, .playback = { .stream_name = "Deepbuffer Playback", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "LowLatency Pin", .ops = &skl_pcm_dai_ops, .playback = { .stream_name = "Low Latency Playback", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "DMIC Pin", .ops = &skl_pcm_dai_ops, .capture = { .stream_name = "DMIC Capture", .channels_min = HDA_MONO, .channels_max = HDA_QUAD, .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "HDMI1 Pin", .ops = &skl_pcm_dai_ops, .playback = { .stream_name = "HDMI1 Playback", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE, }, }, { .name = "HDMI2 Pin", .ops = &skl_pcm_dai_ops, .playback = { .stream_name = "HDMI2 Playback", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE, }, }, { .name = "HDMI3 Pin", .ops = &skl_pcm_dai_ops, .playback = { .stream_name = "HDMI3 Playback", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE, }, }, /* BE CPU Dais */ { .name = "SSP0 Pin", .ops = &skl_be_ssp_dai_ops, .playback = { .stream_name = "ssp0 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "ssp0 Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, { .name = "SSP1 Pin", .ops = &skl_be_ssp_dai_ops, .playback = { .stream_name = "ssp1 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "ssp1 Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, { .name = "SSP2 Pin", .ops = &skl_be_ssp_dai_ops, .playback = { .stream_name = "ssp2 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "ssp2 Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, { .name = "SSP3 Pin", .ops = &skl_be_ssp_dai_ops, .playback = { .stream_name = "ssp3 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "ssp3 Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, { .name = "SSP4 Pin", .ops = &skl_be_ssp_dai_ops, .playback = { .stream_name = "ssp4 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "ssp4 Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, { .name = "SSP5 Pin", .ops = &skl_be_ssp_dai_ops, .playback = { .stream_name = "ssp5 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "ssp5 Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, { .name = "iDisp1 Pin", .ops = &skl_link_dai_ops, .playback = { .stream_name = "iDisp1 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "iDisp2 Pin", .ops = &skl_link_dai_ops, .playback = { .stream_name = "iDisp2 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000| SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "iDisp3 Pin", .ops = &skl_link_dai_ops, .playback = { .stream_name = "iDisp3 Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000| SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "DMIC01 Pin", .ops = &skl_dmic_dai_ops, .capture = { .stream_name = "DMIC01 Rx", .channels_min = HDA_MONO, .channels_max = HDA_QUAD, .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }, { .name = "HD-Codec Pin", .ops = &skl_link_dai_ops, .playback = { .stream_name = "HD-Codec Tx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "HD-Codec Rx", .channels_min = HDA_STEREO, .channels_max = HDA_STEREO, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }, }; static int skl_platform_open(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai_link *dai_link = rtd->dai_link; dev_dbg(rtd->cpu_dai->dev, "In %s:%s\n", __func__, dai_link->cpu_dai_name); runtime = substream->runtime; snd_soc_set_runtime_hwparams(substream, &azx_pcm_hw); return 0; } static int skl_coupled_trigger(struct snd_pcm_substream *substream, int cmd) { struct hdac_ext_bus *ebus = get_bus_ctx(substream); struct hdac_bus *bus = ebus_to_hbus(ebus); struct hdac_ext_stream *stream; struct snd_pcm_substream *s; bool start; int sbits = 0; unsigned long cookie; struct hdac_stream *hstr; stream = get_hdac_ext_stream(substream); hstr = hdac_stream(stream); dev_dbg(bus->dev, "In %s cmd=%d\n", __func__, cmd); if (!hstr->prepared) return -EPIPE; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: case SNDRV_PCM_TRIGGER_RESUME: start = true; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: start = false; break; default: return -EINVAL; } snd_pcm_group_for_each_entry(s, substream) { if (s->pcm->card != substream->pcm->card) continue; stream = get_hdac_ext_stream(s); sbits |= 1 << hdac_stream(stream)->index; snd_pcm_trigger_done(s, substream); } spin_lock_irqsave(&bus->reg_lock, cookie); /* first, set SYNC bits of corresponding streams */ snd_hdac_stream_sync_trigger(hstr, true, sbits, AZX_REG_SSYNC); snd_pcm_group_for_each_entry(s, substream) { if (s->pcm->card != substream->pcm->card) continue; stream = get_hdac_ext_stream(s); if (start) snd_hdac_stream_start(hdac_stream(stream), true); else snd_hdac_stream_stop(hdac_stream(stream)); } spin_unlock_irqrestore(&bus->reg_lock, cookie); snd_hdac_stream_sync(hstr, start, sbits); spin_lock_irqsave(&bus->reg_lock, cookie); /* reset SYNC bits */ snd_hdac_stream_sync_trigger(hstr, false, sbits, AZX_REG_SSYNC); if (start) snd_hdac_stream_timecounter_init(hstr, sbits); spin_unlock_irqrestore(&bus->reg_lock, cookie); return 0; } static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { struct hdac_ext_bus *ebus = get_bus_ctx(substream); if (!ebus->ppcap) return skl_coupled_trigger(substream, cmd); return 0; } /* calculate runtime delay from LPIB */ static int skl_get_delay_from_lpib(struct hdac_ext_bus *ebus, struct hdac_ext_stream *sstream, unsigned int pos) { struct hdac_bus *bus = ebus_to_hbus(ebus); struct hdac_stream *hstream = hdac_stream(sstream); struct snd_pcm_substream *substream = hstream->substream; int stream = substream->stream; unsigned int lpib_pos = snd_hdac_stream_get_pos_lpib(hstream); int delay; if (stream == SNDRV_PCM_STREAM_PLAYBACK) delay = pos - lpib_pos; else delay = lpib_pos - pos; if (delay < 0) { if (delay >= hstream->delay_negative_threshold) delay = 0; else delay += hstream->bufsize; } if (hstream->bufsize == delay) delay = 0; if (delay >= hstream->period_bytes) { dev_info(bus->dev, "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n", delay, hstream->period_bytes); delay = 0; } return bytes_to_frames(substream->runtime, delay); } static unsigned int skl_get_position(struct hdac_ext_stream *hstream, int codec_delay) { struct hdac_stream *hstr = hdac_stream(hstream); struct snd_pcm_substream *substream = hstr->substream; struct hdac_ext_bus *ebus; unsigned int pos; int delay; /* use the position buffer as default */ pos = snd_hdac_stream_get_pos_posbuf(hdac_stream(hstream)); if (pos >= hdac_stream(hstream)->bufsize) pos = 0; if (substream->runtime) { ebus = get_bus_ctx(substream); delay = skl_get_delay_from_lpib(ebus, hstream, pos) + codec_delay; substream->runtime->delay += delay; } return pos; } static snd_pcm_uframes_t skl_platform_pcm_pointer (struct snd_pcm_substream *substream) { struct hdac_ext_stream *hstream = get_hdac_ext_stream(substream); return bytes_to_frames(substream->runtime, skl_get_position(hstream, 0)); } static u64 skl_adjust_codec_delay(struct snd_pcm_substream *substream, u64 nsec) { struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct snd_soc_dai *codec_dai = rtd->codec_dai; u64 codec_frames, codec_nsecs; if (!codec_dai->driver->ops->delay) return nsec; codec_frames = codec_dai->driver->ops->delay(substream, codec_dai); codec_nsecs = div_u64(codec_frames * 1000000000LL, substream->runtime->rate); if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) return nsec + codec_nsecs; return (nsec > codec_nsecs) ? nsec - codec_nsecs : 0; } static int skl_get_time_info(struct snd_pcm_substream *substream, struct timespec *system_ts, struct timespec *audio_ts, struct snd_pcm_audio_tstamp_config *audio_tstamp_config, struct snd_pcm_audio_tstamp_report *audio_tstamp_report) { struct hdac_ext_stream *sstream = get_hdac_ext_stream(substream); struct hdac_stream *hstr = hdac_stream(sstream); u64 nsec; if ((substream->runtime->hw.info & SNDRV_PCM_INFO_HAS_LINK_ATIME) && (audio_tstamp_config->type_requested == SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK)) { snd_pcm_gettime(substream->runtime, system_ts); nsec = timecounter_read(&hstr->tc); nsec = div_u64(nsec, 3); /* can be optimized */ if (audio_tstamp_config->report_delay) nsec = skl_adjust_codec_delay(substream, nsec); *audio_ts = ns_to_timespec(nsec); audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK; audio_tstamp_report->accuracy_report = 1; /* rest of struct is valid */ audio_tstamp_report->accuracy = 42; /* 24MHzWallClk == 42ns resolution */ } else { audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT; } return 0; } static struct snd_pcm_ops skl_platform_ops = { .open = skl_platform_open, .ioctl = snd_pcm_lib_ioctl, .trigger = skl_platform_pcm_trigger, .pointer = skl_platform_pcm_pointer, .get_time_info = skl_get_time_info, .mmap = snd_pcm_lib_default_mmap, .page = snd_pcm_sgbuf_ops_page, }; static void skl_pcm_free(struct snd_pcm *pcm) { snd_pcm_lib_preallocate_free_for_all(pcm); } #define MAX_PREALLOC_SIZE (32 * 1024 * 1024) static int skl_pcm_new(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dai *dai = rtd->cpu_dai; struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct snd_pcm *pcm = rtd->pcm; unsigned int size; int retval = 0; struct skl *skl = ebus_to_skl(ebus); if (dai->driver->playback.channels_min || dai->driver->capture.channels_min) { /* buffer pre-allocation */ size = CONFIG_SND_HDA_PREALLOC_SIZE * 1024; if (size > MAX_PREALLOC_SIZE) size = MAX_PREALLOC_SIZE; retval = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(skl->pci), size, MAX_PREALLOC_SIZE); if (retval) { dev_err(dai->dev, "dma buffer allocationf fail\n"); return retval; } } return retval; } static int skl_platform_soc_probe(struct snd_soc_platform *platform) { struct hdac_ext_bus *ebus = dev_get_drvdata(platform->dev); if (ebus->ppcap) return skl_tplg_init(platform, ebus); return 0; } static struct snd_soc_platform_driver skl_platform_drv = { .probe = skl_platform_soc_probe, .ops = &skl_platform_ops, .pcm_new = skl_pcm_new, .pcm_free = skl_pcm_free, }; static const struct snd_soc_component_driver skl_component = { .name = "pcm", }; int skl_platform_register(struct device *dev) { int ret; struct hdac_ext_bus *ebus = dev_get_drvdata(dev); struct skl *skl = ebus_to_skl(ebus); INIT_LIST_HEAD(&skl->ppl_list); ret = snd_soc_register_platform(dev, &skl_platform_drv); if (ret) { dev_err(dev, "soc platform registration failed %d\n", ret); return ret; } ret = snd_soc_register_component(dev, &skl_component, skl_platform_dai, ARRAY_SIZE(skl_platform_dai)); if (ret) { dev_err(dev, "soc component registration failed %d\n", ret); snd_soc_unregister_platform(dev); } return ret; } int skl_platform_unregister(struct device *dev) { snd_soc_unregister_component(dev); snd_soc_unregister_platform(dev); return 0; }