// 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. All rights reserved. // // Authors: Keyon Jie // #include #include #include #include #include #include #include "../ops.h" #include "hda.h" #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) #include "../../codecs/hdac_hda.h" #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */ #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) #define IDISP_VID_INTEL 0x80860000 /* load the legacy HDA codec driver */ static int hda_codec_load_module(struct hda_codec *codec) { #ifdef MODULE char alias[MODULE_NAME_LEN]; const char *module = alias; snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias)); dev_dbg(&codec->core.dev, "loading codec module: %s\n", module); request_module(module); #endif return device_attach(hda_codec_dev(codec)); } /* enable controller wake up event for all codecs with jack connectors */ void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) { struct hda_bus *hbus = sof_to_hbus(sdev); struct hdac_bus *bus = sof_to_bus(sdev); struct hda_codec *codec; unsigned int mask = 0; list_for_each_codec(codec, hbus) if (codec->jacktbl.used) mask |= BIT(codec->core.addr); snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask); } /* check jack status after resuming from suspend mode */ void hda_codec_jack_check(struct snd_sof_dev *sdev) { struct hda_bus *hbus = sof_to_hbus(sdev); struct hdac_bus *bus = sof_to_bus(sdev); struct hda_codec *codec; /* disable controller Wake Up event*/ snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0); list_for_each_codec(codec, hbus) /* * Wake up all jack-detecting codecs regardless whether an event * has been recorded in STATESTS */ if (codec->jacktbl.used) schedule_delayed_work(&codec->jackpoll_work, codec->jackpoll_interval); } #else void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {} void hda_codec_jack_check(struct snd_sof_dev *sdev) {} #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */ EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC); EXPORT_SYMBOL_NS(hda_codec_jack_check, SND_SOC_SOF_HDA_AUDIO_CODEC); /* probe individual codec */ static int hda_codec_probe(struct snd_sof_dev *sdev, int address, bool hda_codec_use_common_hdmi) { #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) struct hdac_hda_priv *hda_priv; #endif struct hda_bus *hbus = sof_to_hbus(sdev); struct hdac_device *hdev; u32 hda_cmd = (address << 28) | (AC_NODE_ROOT << 20) | (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; u32 resp = -1; int ret; mutex_lock(&hbus->core.cmd_mutex); snd_hdac_bus_send_cmd(&hbus->core, hda_cmd); snd_hdac_bus_get_response(&hbus->core, address, &resp); mutex_unlock(&hbus->core.cmd_mutex); if (resp == -1) return -EIO; dev_dbg(sdev->dev, "HDA codec #%d probed OK: response: %x\n", address, resp); #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) hda_priv = devm_kzalloc(sdev->dev, sizeof(*hda_priv), GFP_KERNEL); if (!hda_priv) return -ENOMEM; hda_priv->codec.bus = hbus; hdev = &hda_priv->codec.core; ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev); if (ret < 0) return ret; if ((resp & 0xFFFF0000) == IDISP_VID_INTEL) { if (!hdev->bus->audio_component) { dev_dbg(sdev->dev, "iDisp hw present but no driver\n"); return -ENOENT; } hda_priv->need_display_power = true; } /* * if common HDMI codec driver is not used, codec load * is skipped here and hdac_hdmi is used instead */ if (hda_codec_use_common_hdmi || (resp & 0xFFFF0000) != IDISP_VID_INTEL) { hdev->type = HDA_DEV_LEGACY; ret = hda_codec_load_module(&hda_priv->codec); /* * handle ret==0 (no driver bound) as an error, but pass * other return codes without modification */ if (ret == 0) ret = -ENOENT; } return ret; #else hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL); if (!hdev) return -ENOMEM; ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev); return ret; #endif } /* Codec initialization */ void hda_codec_probe_bus(struct snd_sof_dev *sdev, bool hda_codec_use_common_hdmi) { struct hdac_bus *bus = sof_to_bus(sdev); int i, ret; /* probe codecs in avail slots */ for (i = 0; i < HDA_MAX_CODECS; i++) { if (!(bus->codec_mask & (1 << i))) continue; ret = hda_codec_probe(sdev, i, hda_codec_use_common_hdmi); if (ret < 0) { dev_warn(bus->dev, "codec #%d probe error, ret: %d\n", i, ret); bus->codec_mask &= ~BIT(i); } } } EXPORT_SYMBOL_NS(hda_codec_probe_bus, SND_SOC_SOF_HDA_AUDIO_CODEC); #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \ IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI) void hda_codec_i915_display_power(struct snd_sof_dev *sdev, bool enable) { struct hdac_bus *bus = sof_to_bus(sdev); if (HDA_IDISP_CODEC(bus->codec_mask)) { dev_dbg(bus->dev, "Turning i915 HDAC power %d\n", enable); snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, enable); } } EXPORT_SYMBOL_NS(hda_codec_i915_display_power, SND_SOC_SOF_HDA_AUDIO_CODEC_I915); int hda_codec_i915_init(struct snd_sof_dev *sdev) { struct hdac_bus *bus = sof_to_bus(sdev); int ret; /* i915 exposes a HDA codec for HDMI audio */ ret = snd_hdac_i915_init(bus); if (ret < 0) return ret; /* codec_mask not yet known, power up for probe */ snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true); return 0; } EXPORT_SYMBOL_NS(hda_codec_i915_init, SND_SOC_SOF_HDA_AUDIO_CODEC_I915); int hda_codec_i915_exit(struct snd_sof_dev *sdev) { struct hdac_bus *bus = sof_to_bus(sdev); if (!bus->audio_component) return 0; /* power down unconditionally */ snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false); return snd_hdac_i915_exit(bus); } EXPORT_SYMBOL_NS(hda_codec_i915_exit, SND_SOC_SOF_HDA_AUDIO_CODEC_I915); #endif MODULE_LICENSE("Dual BSD/GPL");