Messages in this thread | | | Date | Wed, 26 Jul 2023 16:47:43 +0800 | Subject | Re: [PATCH 1/2] ASoC: Intel: maxim-common: get codec number from ACPI | From | "Liao, Bard" <> |
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On 7/20/2023 5:26 PM, Brent Lu wrote: > Implement a helper function to get number of codecs from ACPI > subsystem to remove the need of quirk flag in machine driver. > > Signed-off-by: Brent Lu <brent.lu@intel.com> > --- > sound/soc/intel/boards/sof_maxim_common.c | 174 +++++++++++++--------- > sound/soc/intel/boards/sof_maxim_common.h | 21 ++- > 2 files changed, 113 insertions(+), 82 deletions(-) > > diff --git a/sound/soc/intel/boards/sof_maxim_common.c b/sound/soc/intel/boards/sof_maxim_common.c > index 112e89951da0..f8b44a81fec1 100644 > --- a/sound/soc/intel/boards/sof_maxim_common.c > +++ b/sound/soc/intel/boards/sof_maxim_common.c > @@ -4,6 +4,7 @@ > #include <linux/module.h> > #include <linux/string.h> > #include <sound/pcm.h> > +#include <sound/pcm_params.h> > #include <sound/soc.h> > #include <sound/soc-acpi.h> > #include <sound/soc-dai.h> > @@ -11,6 +12,21 @@ > #include <uapi/sound/asound.h> > #include "sof_maxim_common.h" > > +/* helper function to get the number of specific codec */ > +static int get_num_codecs(const char *hid) > +{ > + struct acpi_device *adev = NULL; > + int dev_num = 0; > + > + do { > + adev = acpi_dev_get_next_match_dev(adev, hid, NULL, -1); > + if (adev) > + dev_num++; > + } while (adev != NULL); > + > + return dev_num; > +} > + > #define MAX_98373_PIN_NAME 16 > > const struct snd_soc_dapm_route max_98373_dapm_routes[] = { > @@ -168,17 +184,6 @@ static struct snd_soc_codec_conf max_98390_codec_conf[] = { > .dlc = COMP_CODEC_CONF(MAX_98390_DEV1_NAME), > .name_prefix = "Left", > }, > -}; > - > -static struct snd_soc_codec_conf max_98390_4spk_codec_conf[] = { > - { > - .dlc = COMP_CODEC_CONF(MAX_98390_DEV0_NAME), > - .name_prefix = "Right", > - }, > - { > - .dlc = COMP_CODEC_CONF(MAX_98390_DEV1_NAME), > - .name_prefix = "Left", > - }, > { > .dlc = COMP_CODEC_CONF(MAX_98390_DEV2_NAME), > .name_prefix = "Tweeter Right", > @@ -189,19 +194,7 @@ static struct snd_soc_codec_conf max_98390_4spk_codec_conf[] = { > }, > }; > > -struct snd_soc_dai_link_component max_98390_components[] = { > - { > - .name = MAX_98390_DEV0_NAME, > - .dai_name = MAX_98390_CODEC_DAI, > - }, > - { > - .name = MAX_98390_DEV1_NAME, > - .dai_name = MAX_98390_CODEC_DAI, > - }, > -}; > -EXPORT_SYMBOL_NS(max_98390_components, SND_SOC_INTEL_SOF_MAXIM_COMMON); > - > -struct snd_soc_dai_link_component max_98390_4spk_components[] = {
max_98390_components[] and max_98390_4spk_components[] are still used
by sof_rt5682.c, we should remove them in the same patch.
Maybe combine the 2 patches together?
> +static struct snd_soc_dai_link_component max_98390_components[] = { > { > .name = MAX_98390_DEV0_NAME, > .dai_name = MAX_98390_CODEC_DAI, > @@ -219,62 +212,56 @@ struct snd_soc_dai_link_component max_98390_4spk_components[] = { > .dai_name = MAX_98390_CODEC_DAI, > }, > }; > -EXPORT_SYMBOL_NS(max_98390_4spk_components, SND_SOC_INTEL_SOF_MAXIM_COMMON); > + > +static const struct { > + unsigned int tx; > + unsigned int rx; > +} max_98390_tdm_mask[] = { > + {.tx = 0x01, .rx = 0x3}, > + {.tx = 0x02, .rx = 0x3}, > + {.tx = 0x04, .rx = 0x3}, > + {.tx = 0x08, .rx = 0x3}, > +}; > > static int max_98390_hw_params(struct snd_pcm_substream *substream, > struct snd_pcm_hw_params *params) > { > struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); > struct snd_soc_dai *codec_dai; > - int i; > + int i, ret = 0; > > for_each_rtd_codec_dais(rtd, i, codec_dai) { > - if (i >= ARRAY_SIZE(max_98390_4spk_components)) { > + if (i >= ARRAY_SIZE(max_98390_tdm_mask)) { > dev_err(codec_dai->dev, "invalid codec index %d\n", i); > return -ENODEV; > } > > - if (!strcmp(codec_dai->component->name, MAX_98390_DEV0_NAME)) { > - /* DEV0 tdm slot configuration Right */ > - snd_soc_dai_set_tdm_slot(codec_dai, 0x01, 3, 4, 32); > - } > - if (!strcmp(codec_dai->component->name, MAX_98390_DEV1_NAME)) { > - /* DEV1 tdm slot configuration Left */ > - snd_soc_dai_set_tdm_slot(codec_dai, 0x02, 3, 4, 32); > - } > - > - if (!strcmp(codec_dai->component->name, MAX_98390_DEV2_NAME)) { > - /* DEVi2 tdm slot configuration Tweeter Right */ > - snd_soc_dai_set_tdm_slot(codec_dai, 0x04, 3, 4, 32); > - } > - if (!strcmp(codec_dai->component->name, MAX_98390_DEV3_NAME)) { > - /* DEV3 tdm slot configuration Tweeter Left */ > - snd_soc_dai_set_tdm_slot(codec_dai, 0x08, 3, 4, 32); > + ret = snd_soc_dai_set_tdm_slot(codec_dai, max_98390_tdm_mask[i].tx, > + max_98390_tdm_mask[i].rx, 4, > + params_width(params)); > + if (ret < 0) { > + dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n", > + ret); > + return ret; > } > } > return 0; > } > > -int max_98390_spk_codec_init(struct snd_soc_pcm_runtime *rtd) > +static int max_98390_init(struct snd_soc_pcm_runtime *rtd) > { > struct snd_soc_card *card = rtd->card; > + int num_codecs = get_num_codecs(MAX_98390_ACPI_HID); > int ret; > > - /* add regular speakers dapm route */ > - ret = snd_soc_dapm_add_routes(&card->dapm, max_98390_dapm_routes, > - ARRAY_SIZE(max_98390_dapm_routes));
Don't we need to add max_98390_dapm_routes for the 4 speakers case?
> - if (ret) { > - dev_err(rtd->dev, "unable to add Left/Right Speaker dapm, ret %d\n", ret); > - return ret; > - } > - > - /* add widgets/controls/dapm for tweeter speakers */ > - if (acpi_dev_present("MX98390", "3", -1)) { > + switch (num_codecs) { > + case 4: > + /* add widgets/controls/dapm for tweeter speakers */ > ret = snd_soc_dapm_new_controls(&card->dapm, max_98390_tt_dapm_widgets, > ARRAY_SIZE(max_98390_tt_dapm_widgets)); > - > if (ret) { > - dev_err(rtd->dev, "unable to add tweeter dapm controls, ret %d\n", ret); > + dev_err(rtd->dev, "unable to add tweeter dapm widgets, ret %d\n", > + ret); > /* Don't need to add routes if widget addition failed */ > return ret; > } > @@ -282,33 +269,80 @@ int max_98390_spk_codec_init(struct snd_soc_pcm_runtime *rtd) > ret = snd_soc_add_card_controls(card, max_98390_tt_kcontrols, > ARRAY_SIZE(max_98390_tt_kcontrols)); > if (ret) { > - dev_err(rtd->dev, "unable to add tweeter card controls, ret %d\n", ret); > + dev_err(rtd->dev, "unable to add tweeter controls, ret %d\n", > + ret); > return ret; > } > > ret = snd_soc_dapm_add_routes(&card->dapm, max_98390_tt_dapm_routes, > ARRAY_SIZE(max_98390_tt_dapm_routes)); > - if (ret) > - dev_err(rtd->dev, > - "unable to add Tweeter Left/Right Speaker dapm, ret %d\n", ret); > + if (ret) { > + dev_err(rtd->dev, "unable to add tweeter dapm routes, ret %d\n", > + ret); > + return ret; > + } > + > + fallthrough; > + case 2: > + /* add regular speakers dapm route */ > + ret = snd_soc_dapm_add_routes(&card->dapm, max_98390_dapm_routes, > + ARRAY_SIZE(max_98390_dapm_routes)); > + if (ret) { > + dev_err(rtd->dev, "unable to add dapm routes, ret %d\n", > + ret); > + return ret; > + } > + break; > + default: > + dev_err(rtd->dev, "invalid codec number %d\n", num_codecs); > + ret = -EINVAL; > + break; > } > + > return ret; > } > -EXPORT_SYMBOL_NS(max_98390_spk_codec_init, SND_SOC_INTEL_SOF_MAXIM_COMMON); > > -const struct snd_soc_ops max_98390_ops = { > +static const struct snd_soc_ops max_98390_ops = { > .hw_params = max_98390_hw_params, > }; > -EXPORT_SYMBOL_NS(max_98390_ops, SND_SOC_INTEL_SOF_MAXIM_COMMON); > > -void max_98390_set_codec_conf(struct snd_soc_card *card, int ch) > +void max_98390_dai_link(struct snd_soc_dai_link *link) > +{ > + int num_codecs = get_num_codecs(MAX_98390_ACPI_HID); > + > + link->codecs = max_98390_components; > + > + switch (num_codecs) { > + case 2: > + case 4: > + link->num_codecs = num_codecs; > + break; > + default: > + pr_err("invalid codec number %d for %s\n", num_codecs, > + MAX_98390_ACPI_HID); > + break; > + } > + > + link->init = max_98390_init; > + link->ops = &max_98390_ops; > +} > +EXPORT_SYMBOL_NS(max_98390_dai_link, SND_SOC_INTEL_SOF_MAXIM_COMMON); > + > +void max_98390_set_codec_conf(struct snd_soc_card *card) > { > - if (ch == ARRAY_SIZE(max_98390_4spk_codec_conf)) { > - card->codec_conf = max_98390_4spk_codec_conf; > - card->num_configs = ARRAY_SIZE(max_98390_4spk_codec_conf); > - } else { > - card->codec_conf = max_98390_codec_conf; > - card->num_configs = ARRAY_SIZE(max_98390_codec_conf); > + int num_codecs = get_num_codecs(MAX_98390_ACPI_HID); > + > + card->codec_conf = max_98390_codec_conf; > + > + switch (num_codecs) { > + case 2: > + case 4: > + card->num_configs = num_codecs; > + break; > + default: > + pr_err("invalid codec number %d for %s\n", num_codecs, > + MAX_98390_ACPI_HID); > + break; > } > } > EXPORT_SYMBOL_NS(max_98390_set_codec_conf, SND_SOC_INTEL_SOF_MAXIM_COMMON); > diff --git a/sound/soc/intel/boards/sof_maxim_common.h b/sound/soc/intel/boards/sof_maxim_common.h > index 7a8c53049e4d..a3676d68cc12 100644 > --- a/sound/soc/intel/boards/sof_maxim_common.h > +++ b/sound/soc/intel/boards/sof_maxim_common.h > @@ -27,18 +27,15 @@ int max_98373_trigger(struct snd_pcm_substream *substream, int cmd); > /* > * Maxim MAX98390 > */ > -#define MAX_98390_CODEC_DAI "max98390-aif1" > -#define MAX_98390_DEV0_NAME "i2c-MX98390:00" > -#define MAX_98390_DEV1_NAME "i2c-MX98390:01" > -#define MAX_98390_DEV2_NAME "i2c-MX98390:02" > -#define MAX_98390_DEV3_NAME "i2c-MX98390:03" > - > -extern struct snd_soc_dai_link_component max_98390_components[2]; > -extern struct snd_soc_dai_link_component max_98390_4spk_components[4]; > -extern const struct snd_soc_ops max_98390_ops; > - > -void max_98390_set_codec_conf(struct snd_soc_card *card, int ch); > -int max_98390_spk_codec_init(struct snd_soc_pcm_runtime *rtd); > +#define MAX_98390_ACPI_HID "MX98390" > +#define MAX_98390_CODEC_DAI "max98390-aif1" > +#define MAX_98390_DEV0_NAME "i2c-MX98390:00" > +#define MAX_98390_DEV1_NAME "i2c-MX98390:01" > +#define MAX_98390_DEV2_NAME "i2c-MX98390:02" > +#define MAX_98390_DEV3_NAME "i2c-MX98390:03" > + > +void max_98390_dai_link(struct snd_soc_dai_link *link); > +void max_98390_set_codec_conf(struct snd_soc_card *card); > > /* > * Maxim MAX98357A/MAX98360A
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