[alsa-devel] [PATCH] ASoC: intel: Add Broadwell rt5650 machine driver
Jon Flatley
jflat at chromium.org
Mon Jul 22 23:04:26 CEST 2019
On Mon, Jul 22, 2019 at 5:34 AM Pierre-Louis Bossart
<pierre-louis.bossart at linux.intel.com> wrote:
>
>
>
> On 7/18/19 6:12 PM, Jon Flatley wrote:
> > From: Ben Zhang <benzh at chromium.org>
> >
> > Add machine driver for Broadwell + rt5650.
>
> Interesting. the only Broadwell device we encountered with I2S instead
> of HDaudio was Samus w/ rt5677, can you share which model this is?
Yes, this is for the Acer Chromebase 24, aka Buddy.
>
> >
> > Signed-off-by: Jon Flatley <jflat at chromium.org>
> > Signed-off-by: Ben Zhang <benzh at chromium.org>
> > ---
> > sound/soc/intel/boards/Kconfig | 11 +
> > sound/soc/intel/boards/Makefile | 2 +
> > sound/soc/intel/boards/bdw-rt5650.c | 305 ++++++++++++++++++
> > .../common/soc-acpi-intel-hsw-bdw-match.c | 5 +
> > 4 files changed, 323 insertions(+)
> > create mode 100644 sound/soc/intel/boards/bdw-rt5650.c
> >
> > diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
> > index 50bf149818b5..c111ae177b4a 100644
> > --- a/sound/soc/intel/boards/Kconfig
> > +++ b/sound/soc/intel/boards/Kconfig
> > @@ -31,6 +31,17 @@ endif ## SND_SOC_INTEL_HASWELL
> >
> > if SND_SOC_INTEL_HASWELL || SND_SOC_SOF_BROADWELL
> >
> > +config SND_SOC_INTEL_BDW_RT5650_MACH
> > + tristate "Broadwell with RT5650 codec"
> > + depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS && DW_DMAC
>
> this should be updated to reflect how other machine drivers are compiled
>
> config SND_SOC_INTEL_BDW_RT5677_MACH
> tristate "Broadwell with RT5677 codec"
> depends on I2C
> depends on I2C_DESIGNWARE_PLATFORM || COMPILE_TEST
> depends on GPIOLIB || COMPILE_TEST
> depends on X86_INTEL_LPSS || COMPILE_TEST
>
> The depends on SND_SOC_INTEL_SST is not needed, it's already implied by
> the SND_SOF_INTEL_HASWELL.
>
>
> > + select SND_COMPRESS_OFFLOAD
>
> Is this necessary? I don't think the legacy broadwell firmware supports
> this and the rt5650 doesn't have any DSP capability, does it?
Correct, I think this can be removed. I don't believe the 5650 codec
has an integrated DSP.
>
> comments below are for direct support of SOF, there are minor known
> changes needed so might as well do them from Day1.
>
> > + select SND_SOC_RT5645
> > + help
> > + This adds the ASoC machine driver for Intel Broadwell platforms with
> > + the RT5650 codec.
> > + Say Y if you have such a device
> > + If unsure select "N".
> > +
> > config SND_SOC_INTEL_BDW_RT5677_MACH
> > tristate "Broadwell with RT5677 codec"
> > depends on I2C
> > diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
> > index 6445f90ea542..b5e2619607be 100644
> > --- a/sound/soc/intel/boards/Makefile
> > +++ b/sound/soc/intel/boards/Makefile
> > @@ -2,6 +2,7 @@
> > snd-soc-sst-haswell-objs := haswell.o
> > snd-soc-sst-byt-rt5640-mach-objs := byt-rt5640.o
> > snd-soc-sst-byt-max98090-mach-objs := byt-max98090.o
> > +snd-soc-sst-bdw-rt5650-mach-objs := bdw-rt5650.o
> > snd-soc-sst-bdw-rt5677-mach-objs := bdw-rt5677.o
> > snd-soc-sst-broadwell-objs := broadwell.o
> > snd-soc-sst-bxt-da7219_max98357a-objs := bxt_da7219_max98357a.o
> > @@ -36,6 +37,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_MACH) += snd-soc-sst-bxt-da7219_
> > obj-$(CONFIG_SND_SOC_INTEL_BXT_RT298_MACH) += snd-soc-sst-bxt-rt298.o
> > obj-$(CONFIG_SND_SOC_INTEL_GLK_RT5682_MAX98357A_MACH) += snd-soc-sst-glk-rt5682_max98357a.o
> > obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o
> > +obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5650_MACH) += snd-soc-sst-bdw-rt5650-mach.o
> > obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5677_MACH) += snd-soc-sst-bdw-rt5677-mach.o
> > obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o
> > obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH) += snd-soc-sst-bytcr-rt5651.o
> > diff --git a/sound/soc/intel/boards/bdw-rt5650.c b/sound/soc/intel/boards/bdw-rt5650.c
> > new file mode 100644
> > index 000000000000..cb875eeab055
> > --- /dev/null
> > +++ b/sound/soc/intel/boards/bdw-rt5650.c
> > @@ -0,0 +1,305 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * ASoC machine driver for Intel Broadwell platforms with RT5650 codec
> > + *
> > + * Copyright 2019, The Chromium OS Authors. All rights reserved.
> > + */
> > +
> > +#include <linux/module.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/delay.h>
> > +#include <sound/core.h>
> > +#include <sound/pcm.h>
> > +#include <sound/soc.h>
> > +#include <sound/pcm_params.h>
> > +#include <sound/jack.h>
>
> #include <sound/soc-acpi.h>
>
> needed for the platform override stuff below
>
> > +
> > +#include "../common/sst-dsp.h"
> > +#include "../haswell/sst-haswell-ipc.h"
> > +
> > +#include "../../codecs/rt5645.h"
> > +
> > +struct bdw_rt5650_priv {
> > + struct gpio_desc *gpio_hp_en;
> > + struct snd_soc_component *component;
> > +};
> > +
> > +static const struct snd_soc_dapm_widget bdw_rt5650_widgets[] = {
> > + SND_SOC_DAPM_HP("Headphone", NULL),
> > + SND_SOC_DAPM_SPK("Speaker", NULL),
> > + SND_SOC_DAPM_MIC("Headset Mic", NULL),
> > + SND_SOC_DAPM_MIC("DMIC Pair1", NULL),
> > + SND_SOC_DAPM_MIC("DMIC Pair2", NULL),
> > +};
> > +
> > +static const struct snd_soc_dapm_route bdw_rt5650_map[] = {
> > + /* Speakers */
> > + {"Speaker", NULL, "SPOL"},
> > + {"Speaker", NULL, "SPOR"},
> > +
> > + /* Headset jack connectors */
> > + {"Headphone", NULL, "HPOL"},
> > + {"Headphone", NULL, "HPOR"},
> > + {"IN1P", NULL, "Headset Mic"},
> > + {"IN1N", NULL, "Headset Mic"},
> > +
> > + /* Digital MICs
> > + * DMIC Pair1 are the two DMICs connected on the DMICN1 connector.
> > + * DMIC Pair2 are the two DMICs connected on the DMICN2 connector.
> > + * Facing the camera, DMIC Pair1 are on the left side, DMIC Pair2
> > + * are on the right side.
> > + */
> > + {"DMIC L1", NULL, "DMIC Pair1"},
> > + {"DMIC R1", NULL, "DMIC Pair1"},
> > + {"DMIC L2", NULL, "DMIC Pair2"},
> > + {"DMIC R2", NULL, "DMIC Pair2"},
> > +
> > + /* CODEC BE connections */
> > + {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
> > + {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
> > +};
> > +
> > +static const struct snd_kcontrol_new bdw_rt5650_controls[] = {
> > + SOC_DAPM_PIN_SWITCH("Speaker"),
> > + SOC_DAPM_PIN_SWITCH("Headphone"),
> > + SOC_DAPM_PIN_SWITCH("Headset Mic"),
> > + SOC_DAPM_PIN_SWITCH("DMIC Pair1"),
> > + SOC_DAPM_PIN_SWITCH("DMIC Pair2"),
> > +};
> > +
> > +
>
> extra newline
>
> > +static struct snd_soc_jack headphone_jack;
> > +static struct snd_soc_jack mic_jack;
> > +
> > +static struct snd_soc_jack_pin headphone_jack_pin = {
> > + .pin = "Headphone",
> > + .mask = SND_JACK_HEADPHONE,
> > +};
> > +
> > +static struct snd_soc_jack_pin mic_jack_pin = {
> > + .pin = "Headset Mic",
> > + .mask = SND_JACK_MICROPHONE,
> > +};
> > +
> > +static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
> > + struct snd_pcm_hw_params *params)
> > +{
> > + struct snd_interval *rate = hw_param_interval(params,
> > + SNDRV_PCM_HW_PARAM_RATE);
> > + struct snd_interval *channels = hw_param_interval(params,
> > + SNDRV_PCM_HW_PARAM_CHANNELS);
> > +
> > + /* The ADSP will covert the FE rate to 48k, max 4-channels */
> > + rate->min = rate->max = 48000;
> > + channels->min = 2;
> > + channels->max = 4;
> > +
> > + /* set SSP0 to 24 bit */
> > + snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT -
> > + SNDRV_PCM_HW_PARAM_FIRST_MASK],
> > + SNDRV_PCM_FORMAT_S24_LE);
> > + return 0;
> > +}
> > +
> > +static int bdw_rt5650_hw_params(struct snd_pcm_substream *substream,
> > + struct snd_pcm_hw_params *params)
> > +{
> > + struct snd_soc_pcm_runtime *rtd = substream->private_data;
> > + struct snd_soc_dai *codec_dai = rtd->codec_dai;
> > + int ret;
> > +
> > + /* Workaround: set codec PLL to 19.2MHz that PLL source is
> > + * from MCLK(24MHz) to conform 2.4MHz DMIC clock.
> > + */
> > + ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
> > + 24000000, 19200000);
> > + if (ret < 0) {
> > + dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + /* The actual MCLK freq is 24MHz. The codec is told that MCLK is
> > + * 24.576MHz to satisfy the requirement of rl6231_get_clk_info.
> > + * ASRC is enabled on AD and DA filters to ensure good audio quality.
> > + */
> > + ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 24576000,
> > + SND_SOC_CLOCK_IN);
> > + if (ret < 0) {
> > + dev_err(rtd->dev, "can't set codec sysclk configuration\n");
> > + return ret;
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static struct snd_soc_ops bdw_rt5650_ops = {
> > + .hw_params = bdw_rt5650_hw_params,
> > +};
> > +
> > +static int bdw_rt5650_rtd_init(struct snd_soc_pcm_runtime *rtd)
> > +{
> > + struct snd_soc_component *component =
> > + snd_soc_rtdcom_lookup(rtd, DRV_NAME);
> > + struct sst_pdata *pdata = dev_get_platdata(component->dev);
> > + struct sst_hsw *broadwell = pdata->dsp;
> > + int ret;
> > +
> > + /* Set ADSP SSP port settings
> > + * clock_divider = 4 means BCLK = MCLK/5 = 24MHz/5 = 4.8MHz
> > + */
> > + ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
> > + SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
> > + SST_HSW_DEVICE_TDM_CLOCK_MASTER, 4);
>
> this is going to break compilation if SOF is selected. this function
> should be filtered out with
> #if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
>
> as done in bdw-rt5677
>
> > + if (ret < 0) {
> > + dev_err(rtd->dev, "error: failed to set device config\n");
> > + return ret;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd)
> > +{
> > + struct bdw_rt5650_priv *bdw_rt5650 =
> > + snd_soc_card_get_drvdata(rtd->card);
> > + struct snd_soc_component *component = rtd->codec_dai->component;
> > + struct snd_soc_dai *codec_dai = rtd->codec_dai;
> > + int ret;
> > +
> > + /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
> > + * The ASRC clock source is clk_i2s1_asrc.
> > + */
> > + rt5645_sel_asrc_clk_src(component,
> > + RT5645_DA_STEREO_FILTER |
> > + RT5645_DA_MONO_L_FILTER |
> > + RT5645_DA_MONO_R_FILTER |
> > + RT5645_AD_STEREO_FILTER |
> > + RT5645_AD_MONO_L_FILTER |
> > + RT5645_AD_MONO_R_FILTER,
> > + RT5645_CLK_SEL_I2S1_ASRC);
> > +
> > + /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
> > + ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
>
> could we move this to bdw_rt5650_rtd_init() so that this doesn't impact SOF?
I'm not familiar with the differences in SOF. Can you elaborate on
what exactly needs to be moved?
>
> > +
> > + if (ret < 0) {
> > + dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
> > + return ret;
> > + }
> > +
> > + /* Create and initialize headphone jack */
> > + if (snd_soc_card_jack_new(rtd->card, "Headphone Jack",
> > + SND_JACK_HEADPHONE, &headphone_jack,
> > + &headphone_jack_pin, 1)) {
> > + dev_err(component->dev, "Can't create headphone jack\n");
> > + }
> > +
> > + /* Create and initialize mic jack */
> > + if (snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
> > + &mic_jack, &mic_jack_pin, 1)) {
> > + dev_err(component->dev, "Can't create mic jack\n");
> > + }
> > +
> > + rt5645_set_jack_detect(component, &headphone_jack, &mic_jack, NULL);
> > +
> > + bdw_rt5650->component = component;
> > +
> > + return 0;
> > +}
> > +
> > +/* broadwell digital audio interface glue - connects codec <--> CPU */
> > +SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY()));
> > +SND_SOC_DAILINK_DEF(fe, DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
> > +SND_SOC_DAILINK_DEF(platform,
> > + DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
> > +SND_SOC_DAILINK_DEF(be,
> > + DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5650:00", "rt5645-aif1")));
> > +
> > +static struct snd_soc_dai_link bdw_rt5650_dais[] = {
> > + /* Front End DAI links */
> > + {
> > + .name = "System PCM",
> > + .stream_name = "System Playback",
> > + .dynamic = 1,
> > + .init = bdw_rt5650_rtd_init,
> > + .trigger = {
> > + SND_SOC_DPCM_TRIGGER_POST,
> > + SND_SOC_DPCM_TRIGGER_POST
> > + },
> > + .dpcm_playback = 1,
> > + .dpcm_capture = 1,
> > + SND_SOC_DAILINK_REG(fe, dummy, platform),
> > + },
> > +
> > + /* Back End DAI links */
> > + {
> > + /* SSP0 - Codec */
> > + .name = "Codec",
> > + .id = 0,
> > + .no_pcm = 1,
> > + .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
> > + SND_SOC_DAIFMT_CBS_CFS,
> > + .ignore_suspend = 1,
> > + .ignore_pmdown_time = 1,
> > + .be_hw_params_fixup = broadwell_ssp0_fixup,
> > + .ops = &bdw_rt5650_ops,
> > + .dpcm_playback = 1,
> > + .dpcm_capture = 1,
> > + .init = bdw_rt5650_init,
> > + SND_SOC_DAILINK_REG(dummy, be, dummy)
> > + },
> > +};
> > +
> > +/* ASoC machine driver for Broadwell DSP + RT5650 */
> > +static struct snd_soc_card bdw_rt5650_card = {
> > + .name = "bdw-rt5650",
> > + .owner = THIS_MODULE,
> > + .dai_link = bdw_rt5650_dais,
> > + .num_links = ARRAY_SIZE(bdw_rt5650_dais),
> > + .dapm_widgets = bdw_rt5650_widgets,
> > + .num_dapm_widgets = ARRAY_SIZE(bdw_rt5650_widgets),
> > + .dapm_routes = bdw_rt5650_map,
> > + .num_dapm_routes = ARRAY_SIZE(bdw_rt5650_map),
> > + .controls = bdw_rt5650_controls,
> > + .num_controls = ARRAY_SIZE(bdw_rt5650_controls),
> > + .fully_routed = true,
> > +};
> > +
> > +static int bdw_rt5650_probe(struct platform_device *pdev)
> > +{
> > + struct bdw_rt5650_priv *bdw_rt5650;
> > +
> > + bdw_rt5650_card.dev = &pdev->dev;
> > +
> > + /* Allocate driver private struct */
> > + bdw_rt5650 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5650_priv),
> > + GFP_KERNEL);
> > + if (!bdw_rt5650)
> > + return -ENOMEM;
>
> can you add the part for the platform name override to help with SOF
> usage, same as in bdw-rt5677, this would be:
>
> /* override plaform name, if required */
> mach = (&pdev->dev)->platform_data;
> if (mach) /* extra check since legacy does not pass parameters */
> platform_name = mach->mach_params.platform;
>
> ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5650_card,
> platform_name);
> if (ret)
> return ret;
>
>
> > + snd_soc_card_set_drvdata(&bdw_rt5650_card, bdw_rt5650);
> > +
> > + return snd_soc_register_card(&bdw_rt5650_card);
> > +}
> > +
> > +static int bdw_rt5650_remove(struct platform_device *pdev)
> > +{
> > + snd_soc_unregister_card(&bdw_rt5650_card);
> > + return 0;
> > +}
> > +
> > +static struct platform_driver bdw_rt5650_audio = {
> > + .probe = bdw_rt5650_probe,
> > + .remove = bdw_rt5650_remove,
> > + .driver = {
> > + .name = "bdw-rt5650",
> > + .owner = THIS_MODULE,
>
> .owner is not necessary?
>
> > + },
> > +};
> > +
> > +module_platform_driver(bdw_rt5650_audio)
> > +
> > +/* Module information */
> > +MODULE_AUTHOR("Ben Zhang <benzh at chromium.org>");
> > +MODULE_DESCRIPTION("Intel Broadwell RT5650 machine driver");
> > +MODULE_LICENSE("GPL v2");
> > +MODULE_ALIAS("platform:bdw-rt5650");
> > diff --git a/sound/soc/intel/common/soc-acpi-intel-hsw-bdw-match.c b/sound/soc/intel/common/soc-acpi-intel-hsw-bdw-match.c
> > index d27853e7a369..ba3d25658436 100644
> > --- a/sound/soc/intel/common/soc-acpi-intel-hsw-bdw-match.c
> > +++ b/sound/soc/intel/common/soc-acpi-intel-hsw-bdw-match.c
> > @@ -29,6 +29,11 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_broadwell_machines[] = {
> > .sof_fw_filename = "sof-bdw.ri",
> > .sof_tplg_filename = "sof-bdw-rt286.tplg",
> > },
> > + {
> > + .id = "10EC5650",
> > + .drv_name = "bdw-rt5650",
> > + .fw_filename = "intel/IntcSST2.bin",
>
> can you add a placeholder for SOF?
>
> .sof_fw_filename = "sof-bdw.ri",
> .sof_tplg_filename = "sof-bdw-rt5650.tplg",
>
> > + },
> > {
> > .id = "RT5677CE",
> > .drv_name = "bdw-rt5677",
> >
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