[linux-block.git] / sound / soc / sof / intel / hda-codec.c

// SPDX-License-Identifier: (GPL-2.0 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 <yang.jie@linux.intel.com>
//

#include <linux/module.h>
#include <sound/hdaudio_ext.h>
#include <sound/hda_register.h>
#include <sound/hda_codec.h>
#include <sound/hda_i915.h>
#include <sound/sof.h>
#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)
		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);
	int ret;

	/* power down unconditionally */
	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);

	ret = snd_hdac_i915_exit(bus);

	return ret;
}
EXPORT_SYMBOL_NS(hda_codec_i915_exit, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);

#endif

MODULE_LICENSE("Dual BSD/GPL");
Commit	Line	Data
5507b810 PLB	1	// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
	2	//
	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.
	5	//
	6	// Copyright(c) 2018 Intel Corporation. All rights reserved.
	7	//
	8	// Authors: Keyon Jie <yang.jie@linux.intel.com>
	9	//
	10
	11	#include <linux/module.h>
	12	#include <sound/hdaudio_ext.h>
fd15f2f5	13	#include <sound/hda_register.h>
5507b810 PLB	14	#include <sound/hda_codec.h>
	15	#include <sound/hda_i915.h>
	16	#include <sound/sof.h>
	17	#include "../ops.h"
	18	#include "hda.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 */
	22
	23	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
	24	#define IDISP_VID_INTEL 0x80860000
	25
	26	/* load the legacy HDA codec driver */
2c63bea7	27	static int hda_codec_load_module(struct hda_codec *codec)
5507b810	28	{
2c63bea7	29	#ifdef MODULE
5507b810 PLB	30	char alias[MODULE_NAME_LEN];
	31	const char *module = alias;
	32
	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);
5507b810	36	#endif
2c63bea7 KV	37	return device_attach(hda_codec_dev(codec));
2c63bea7 KV	38	}
5507b810	39
fd15f2f5 RW	40	/* enable controller wake up event for all codecs with jack connectors */
	41	void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
	42	{
	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;
	47
	48	list_for_each_codec(codec, hbus)
	49	if (codec->jacktbl.used)
	50	mask \|= BIT(codec->core.addr);
	51
	52	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, mask);
	53	}
	54
	55	/* check jack status after resuming from suspend mode */
	56	void hda_codec_jack_check(struct snd_sof_dev *sdev)
	57	{
	58	struct hda_bus *hbus = sof_to_hbus(sdev);
	59	struct hdac_bus *bus = sof_to_bus(sdev);
	60	struct hda_codec *codec;
	61
	62	/* disable controller Wake Up event*/
	63	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
	64
	65	list_for_each_codec(codec, hbus)
	66	/*
	67	* Wake up all jack-detecting codecs regardless whether an event
	68	* has been recorded in STATESTS
	69	*/
	70	if (codec->jacktbl.used)
	71	schedule_delayed_work(&codec->jackpoll_work,
	72	codec->jackpoll_interval);
	73	}
	74	#else
	75	void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) {}
	76	void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
5507b810	77	#endif /* CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC */
5bd216c6 PLB	78	EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC);
5bd216c6 PLB	79	EXPORT_SYMBOL_NS(hda_codec_jack_check, SND_SOC_SOF_HDA_AUDIO_CODEC);
5507b810 PLB	80
5507b810 PLB	81	/* probe individual codec */
80acdd4f RS	82	static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
80acdd4f RS	83	bool hda_codec_use_common_hdmi)
5507b810	84	{
5507b810 PLB	85	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
	86	struct hdac_hda_priv *hda_priv;
	87	#endif
fd15f2f5 RW	88	struct hda_bus *hbus = sof_to_hbus(sdev);
fd15f2f5 RW	89	struct hdac_device *hdev;
5507b810 PLB	90	u32 hda_cmd = (address << 28) \| (AC_NODE_ROOT << 20) \|
	91	(AC_VERB_PARAMETERS << 8) \| AC_PAR_VENDOR_ID;
	92	u32 resp = -1;
	93	int ret;
	94
	95	mutex_lock(&hbus->core.cmd_mutex);
	96	snd_hdac_bus_send_cmd(&hbus->core, hda_cmd);
	97	snd_hdac_bus_get_response(&hbus->core, address, &resp);
	98	mutex_unlock(&hbus->core.cmd_mutex);
	99	if (resp == -1)
	100	return -EIO;
	101	dev_dbg(sdev->dev, "HDA codec #%d probed OK: response: %x\n",
	102	address, resp);
	103
	104	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
ef9bec27	105	hda_priv = devm_kzalloc(sdev->dev, sizeof(*hda_priv), GFP_KERNEL);
5507b810 PLB	106	if (!hda_priv)
	107	return -ENOMEM;
	108
	109	hda_priv->codec.bus = hbus;
	110	hdev = &hda_priv->codec.core;
	111
	112	ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
	113	if (ret < 0)
	114	return ret;
	115
139c7feb KV	116	if ((resp & 0xFFFF0000) == IDISP_VID_INTEL)
	117	hda_priv->need_display_power = true;
	118
	119	/*
	120	* if common HDMI codec driver is not used, codec load
	121	* is skipped here and hdac_hdmi is used instead
	122	*/
80acdd4f	123	if (hda_codec_use_common_hdmi \|\|
139c7feb	124	(resp & 0xFFFF0000) != IDISP_VID_INTEL) {
5507b810	125	hdev->type = HDA_DEV_LEGACY;
2c63bea7 KV	126	ret = hda_codec_load_module(&hda_priv->codec);
	127	/*
	128	* handle ret==0 (no driver bound) as an error, but pass
	129	* other return codes without modification
	130	*/
	131	if (ret == 0)
	132	ret = -ENOENT;
5507b810 PLB	133	}
5507b810 PLB	134
2c63bea7	135	return ret;
5507b810	136	#else
ef9bec27	137	hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
5507b810 PLB	138	if (!hdev)
	139	return -ENOMEM;
	140
	141	ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
	142
	143	return ret;
	144	#endif
	145	}
	146
	147	/* Codec initialization */
91dce767 KV	148	void hda_codec_probe_bus(struct snd_sof_dev *sdev,
91dce767 KV	149	bool hda_codec_use_common_hdmi)
5507b810 PLB	150	{
	151	struct hdac_bus *bus = sof_to_bus(sdev);
	152	int i, ret;
	153
	154	/* probe codecs in avail slots */
	155	for (i = 0; i < HDA_MAX_CODECS; i++) {
	156
	157	if (!(bus->codec_mask & (1 << i)))
	158	continue;
	159
80acdd4f	160	ret = hda_codec_probe(sdev, i, hda_codec_use_common_hdmi);
5507b810	161	if (ret < 0) {
91dce767 KV	162	dev_warn(bus->dev, "codec #%d probe error, ret: %d\n",
	163	i, ret);
	164	bus->codec_mask &= ~BIT(i);
5507b810 PLB	165	}
5507b810 PLB	166	}
5507b810	167	}
5bd216c6	168	EXPORT_SYMBOL_NS(hda_codec_probe_bus, SND_SOC_SOF_HDA_AUDIO_CODEC);
5507b810	169
139c7feb KV	170	#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) \|\| \
139c7feb KV	171	IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)
5507b810	172
23ee0903	173	void hda_codec_i915_display_power(struct snd_sof_dev *sdev, bool enable)
5507b810 PLB	174	{
	175	struct hdac_bus *bus = sof_to_bus(sdev);
	176
816938b2 KV	177	if (HDA_IDISP_CODEC(bus->codec_mask)) {
	178	dev_dbg(bus->dev, "Turning i915 HDAC power %d\n", enable);
	179	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, enable);
	180	}
5507b810	181	}
23ee0903	182	EXPORT_SYMBOL_NS(hda_codec_i915_display_power, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
5507b810 PLB	183
	184	int hda_codec_i915_init(struct snd_sof_dev *sdev)
	185	{
	186	struct hdac_bus *bus = sof_to_bus(sdev);
	187	int ret;
	188
	189	/* i915 exposes a HDA codec for HDMI audio */
	190	ret = snd_hdac_i915_init(bus);
	191	if (ret < 0)
	192	return ret;
	193
816938b2 KV	194	/* codec_mask not yet known, power up for probe */
816938b2 KV	195	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
5507b810 PLB	196
	197	return 0;
	198	}
5bd216c6	199	EXPORT_SYMBOL_NS(hda_codec_i915_init, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
5507b810 PLB	200
	201	int hda_codec_i915_exit(struct snd_sof_dev *sdev)
	202	{
	203	struct hdac_bus *bus = sof_to_bus(sdev);
	204	int ret;
	205
816938b2 KV	206	/* power down unconditionally */
816938b2 KV	207	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
5507b810 PLB	208
	209	ret = snd_hdac_i915_exit(bus);
	210
	211	return ret;
	212	}
5bd216c6	213	EXPORT_SYMBOL_NS(hda_codec_i915_exit, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
5507b810	214
139c7feb	215	#endif
5507b810 PLB	216
5507b810 PLB	217	MODULE_LICENSE("Dual BSD/GPL");