1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
8 // Authors: Keyon Jie <yang.jie@linux.intel.com>
11 #include <linux/module.h>
12 #include <sound/hdaudio_ext.h>
13 #include <sound/hda_register.h>
14 #include <sound/hda_codec.h>
15 #include <sound/hda_i915.h>
16 #include <sound/sof.h>
19 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
20 #include "../../codecs/hdac_hda.h"
21 #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
23 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
24 #define IDISP_VID_INTEL 0x80860000
26 /* load the legacy HDA codec driver */
27 static int hda_codec_load_module(struct hda_codec *codec)
30 char alias[MODULE_NAME_LEN];
31 const char *module = alias;
33 snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias));
34 dev_dbg(&codec->core.dev, "loading codec module: %s\n", module);
35 request_module(module);
37 return device_attach(hda_codec_dev(codec));
40 /* enable controller wake up event for all codecs with jack connectors */
41 void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
43 struct hda_bus *hbus = sof_to_hbus(sdev);
44 struct hdac_bus *bus = sof_to_bus(sdev);
45 struct hda_codec *codec;
46 unsigned int mask = 0;
48 list_for_each_codec(codec, hbus)
49 if (codec->jacktbl.used)
50 mask |= BIT(codec->core.addr);
52 snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
55 /* check jack status after resuming from suspend mode */
56 void hda_codec_jack_check(struct snd_sof_dev *sdev)
58 struct hda_bus *hbus = sof_to_hbus(sdev);
59 struct hdac_bus *bus = sof_to_bus(sdev);
60 struct hda_codec *codec;
62 /* disable controller Wake Up event*/
63 snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
65 list_for_each_codec(codec, hbus)
67 * Wake up all jack-detecting codecs regardless whether an event
68 * has been recorded in STATESTS
70 if (codec->jacktbl.used)
71 schedule_delayed_work(&codec->jackpoll_work,
72 codec->jackpoll_interval);
75 void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
76 void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
77 #endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
78 EXPORT_SYMBOL(hda_codec_jack_wake_enable);
79 EXPORT_SYMBOL(hda_codec_jack_check);
81 /* probe individual codec */
82 static int hda_codec_probe(struct snd_sof_dev *sdev, int address)
84 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
85 struct hdac_hda_priv *hda_priv;
86 struct snd_soc_acpi_mach_params *mach_params = NULL;
87 struct snd_sof_pdata *pdata = sdev->pdata;
89 struct hda_bus *hbus = sof_to_hbus(sdev);
90 struct hdac_device *hdev;
91 u32 hda_cmd = (address << 28) | (AC_NODE_ROOT << 20) |
92 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
96 mutex_lock(&hbus->core.cmd_mutex);
97 snd_hdac_bus_send_cmd(&hbus->core, hda_cmd);
98 snd_hdac_bus_get_response(&hbus->core, address, &resp);
99 mutex_unlock(&hbus->core.cmd_mutex);
102 dev_dbg(sdev->dev, "HDA codec #%d probed OK: response: %x\n",
105 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
106 hda_priv = devm_kzalloc(sdev->dev, sizeof(*hda_priv), GFP_KERNEL);
110 hda_priv->codec.bus = hbus;
111 hdev = &hda_priv->codec.core;
113 ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
118 mach_params = (struct snd_soc_acpi_mach_params *)
119 &pdata->machine->mach_params;
121 if ((resp & 0xFFFF0000) == IDISP_VID_INTEL)
122 hda_priv->need_display_power = true;
125 * if common HDMI codec driver is not used, codec load
126 * is skipped here and hdac_hdmi is used instead
128 if ((mach_params && mach_params->common_hdmi_codec_drv) ||
129 (resp & 0xFFFF0000) != IDISP_VID_INTEL) {
130 hdev->type = HDA_DEV_LEGACY;
131 ret = hda_codec_load_module(&hda_priv->codec);
133 * handle ret==0 (no driver bound) as an error, but pass
134 * other return codes without modification
142 hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
146 ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
152 /* Codec initialization */
153 int hda_codec_probe_bus(struct snd_sof_dev *sdev)
155 struct hdac_bus *bus = sof_to_bus(sdev);
158 /* probe codecs in avail slots */
159 for (i = 0; i < HDA_MAX_CODECS; i++) {
161 if (!(bus->codec_mask & (1 << i)))
164 ret = hda_codec_probe(sdev, i);
166 dev_err(bus->dev, "error: codec #%d probe error, ret: %d\n",
174 EXPORT_SYMBOL(hda_codec_probe_bus);
176 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \
177 IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)
179 void hda_codec_i915_get(struct snd_sof_dev *sdev)
181 struct hdac_bus *bus = sof_to_bus(sdev);
183 dev_dbg(bus->dev, "Turning i915 HDAC power on\n");
184 snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
186 EXPORT_SYMBOL(hda_codec_i915_get);
188 void hda_codec_i915_put(struct snd_sof_dev *sdev)
190 struct hdac_bus *bus = sof_to_bus(sdev);
192 dev_dbg(bus->dev, "Turning i915 HDAC power off\n");
193 snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
195 EXPORT_SYMBOL(hda_codec_i915_put);
197 int hda_codec_i915_init(struct snd_sof_dev *sdev)
199 struct hdac_bus *bus = sof_to_bus(sdev);
202 /* i915 exposes a HDA codec for HDMI audio */
203 ret = snd_hdac_i915_init(bus);
207 hda_codec_i915_get(sdev);
211 EXPORT_SYMBOL(hda_codec_i915_init);
213 int hda_codec_i915_exit(struct snd_sof_dev *sdev)
215 struct hdac_bus *bus = sof_to_bus(sdev);
218 hda_codec_i915_put(sdev);
220 ret = snd_hdac_i915_exit(bus);
224 EXPORT_SYMBOL(hda_codec_i915_exit);
228 MODULE_LICENSE("Dual BSD/GPL");