diff options
Diffstat (limited to 'sound/soc/intel/boards/sof_sdw_rt711.c')
| -rw-r--r-- | sound/soc/intel/boards/sof_sdw_rt711.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/sof_sdw_rt711.c b/sound/soc/intel/boards/sof_sdw_rt711.c new file mode 100644 index 000000000000..8291967f23f3 --- /dev/null +++ b/sound/soc/intel/boards/sof_sdw_rt711.c @@ -0,0 +1,182 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (c) 2020 Intel Corporation + +/* + * sof_sdw_rt711 - Helpers to handle RT711 from generic machine driver + */ + +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/input.h> +#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_type.h> +#include <sound/control.h> +#include <sound/soc.h> +#include <sound/soc-acpi.h> +#include <sound/soc-dapm.h> +#include <sound/jack.h> +#include "sof_sdw_common.h" + +/* + * Note this MUST be called before snd_soc_register_card(), so that the props + * are in place before the codec component driver's probe function parses them. + */ +static int rt711_add_codec_device_props(struct device *sdw_dev) +{ + struct property_entry props[MAX_NO_PROPS] = {}; + struct fwnode_handle *fwnode; + int ret; + + if (!SOF_RT711_JDSRC(sof_sdw_quirk)) + return 0; + props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_JDSRC(sof_sdw_quirk)); + + fwnode = fwnode_create_software_node(props, NULL); + if (IS_ERR(fwnode)) + return PTR_ERR(fwnode); + + ret = device_add_software_node(sdw_dev, to_software_node(fwnode)); + + fwnode_handle_put(fwnode); + + return ret; +} + +static const struct snd_soc_dapm_widget rt711_widgets[] = { + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), +}; + +static const struct snd_soc_dapm_route rt711_map[] = { + /* Headphones */ + { "Headphone", NULL, "rt711 HP" }, + { "rt711 MIC2", NULL, "Headset Mic" }, +}; + +static const struct snd_kcontrol_new rt711_controls[] = { + SOC_DAPM_PIN_SWITCH("Headphone"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), +}; + +static struct snd_soc_jack_pin rt711_jack_pins[] = { + { + .pin = "Headphone", + .mask = SND_JACK_HEADPHONE, + }, + { + .pin = "Headset Mic", + .mask = SND_JACK_MICROPHONE, + }, +}; + +static int rt711_rtd_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + struct mc_private *ctx = snd_soc_card_get_drvdata(card); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_component *component = codec_dai->component; + struct snd_soc_jack *jack; + int ret; + + card->components = devm_kasprintf(card->dev, GFP_KERNEL, + "%s hs:rt711", + card->components); + if (!card->components) + return -ENOMEM; + + ret = snd_soc_add_card_controls(card, rt711_controls, + ARRAY_SIZE(rt711_controls)); + if (ret) { + dev_err(card->dev, "rt711 controls addition failed: %d\n", ret); + return ret; + } + + ret = snd_soc_dapm_new_controls(&card->dapm, rt711_widgets, + ARRAY_SIZE(rt711_widgets)); + if (ret) { + dev_err(card->dev, "rt711 widgets addition failed: %d\n", ret); + return ret; + } + + ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map, + ARRAY_SIZE(rt711_map)); + + if (ret) { + dev_err(card->dev, "rt711 map addition failed: %d\n", ret); + return ret; + } + + ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", + SND_JACK_HEADSET | SND_JACK_BTN_0 | + SND_JACK_BTN_1 | SND_JACK_BTN_2 | + SND_JACK_BTN_3, + &ctx->sdw_headset, + rt711_jack_pins, + ARRAY_SIZE(rt711_jack_pins)); + if (ret) { + dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n", + ret); + return ret; + } + + jack = &ctx->sdw_headset; + + snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); + snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); + snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); + snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); + + ret = snd_soc_component_set_jack(component, jack, NULL); + + if (ret) + dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n", + ret); + + return ret; +} + +int sof_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) +{ + struct mc_private *ctx = snd_soc_card_get_drvdata(card); + + if (!ctx->headset_codec_dev) + return 0; + + device_remove_software_node(ctx->headset_codec_dev); + put_device(ctx->headset_codec_dev); + + return 0; +} + +int sof_sdw_rt711_init(struct snd_soc_card *card, + const struct snd_soc_acpi_link_adr *link, + struct snd_soc_dai_link *dai_links, + struct sof_sdw_codec_info *info, + bool playback) +{ + struct mc_private *ctx = snd_soc_card_get_drvdata(card); + struct device *sdw_dev; + int ret; + + /* + * headset should be initialized once. + * Do it with dai link for playback. + */ + if (!playback) + return 0; + + sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name); + if (!sdw_dev) + return -EPROBE_DEFER; + + ret = rt711_add_codec_device_props(sdw_dev); + if (ret < 0) { + put_device(sdw_dev); + return ret; + } + ctx->headset_codec_dev = sdw_dev; + + dai_links->init = rt711_rtd_init; + + return 0; +} |