[mirror_ubuntu-jammy-kernel.git] / sound / soc / qcom / apq8016_sbc.c

/*
 * Copyright (c) 2015 The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/device.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/jack.h>
#include <sound/soc.h>
#include <uapi/linux/input-event-codes.h>
#include <dt-bindings/sound/apq8016-lpass.h>

struct apq8016_sbc_data {
	void __iomem *mic_iomux;
	void __iomem *spkr_iomux;
	struct snd_soc_jack jack;
	bool jack_setup;
	struct snd_soc_dai_link dai_link[];	/* dynamically allocated */
};

#define MIC_CTRL_TER_WS_SLAVE_SEL	BIT(21)
#define MIC_CTRL_QUA_WS_SLAVE_SEL_10	BIT(17)
#define MIC_CTRL_TLMM_SCLK_EN		BIT(1)
#define	SPKR_CTL_PRI_WS_SLAVE_SEL_11	(BIT(17) | BIT(16))
#define DEFAULT_MCLK_RATE		9600000

static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_component *component;
	struct snd_soc_dai_link *dai_link = rtd->dai_link;
	struct snd_soc_card *card = rtd->card;
	struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
	int i, rval;

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
		writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,
			pdata->spkr_iomux);
		break;

	case MI2S_QUATERNARY:
		/* Configure the Quat MI2S to TLMM */
		writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |
			MIC_CTRL_TLMM_SCLK_EN,
			pdata->mic_iomux);
		break;
	case MI2S_TERTIARY:
		writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL |
			MIC_CTRL_TLMM_SCLK_EN,
			pdata->mic_iomux);

		break;

	default:
		dev_err(card->dev, "unsupported cpu dai configuration\n");
		return -EINVAL;

	}

	if (!pdata->jack_setup) {
		struct snd_jack *jack;

		rval = snd_soc_card_jack_new(card, "Headset Jack",
					     SND_JACK_HEADSET |
					     SND_JACK_HEADPHONE |
					     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
					     SND_JACK_BTN_2 | SND_JACK_BTN_3 |
					     SND_JACK_BTN_4,
					     &pdata->jack, NULL, 0);

		if (rval < 0) {
			dev_err(card->dev, "Unable to add Headphone Jack\n");
			return rval;
		}

		jack = pdata->jack.jack;

		snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
		snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
		snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
		snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
		pdata->jack_setup = true;
	}

	for (i = 0 ; i < dai_link->num_codecs; i++) {
		struct snd_soc_dai *dai = rtd->codec_dais[i];

		component = dai->component;
		/* Set default mclk for internal codec */
		rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
				       SND_SOC_CLOCK_IN);
		if (rval != 0 && rval != -ENOTSUPP) {
			dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
			return rval;
		}
		rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
		if (rval != 0 && rval != -ENOTSUPP) {
			dev_warn(card->dev, "Failed to set jack: %d\n", rval);
			return rval;
		}
	}

	return 0;
}

static struct apq8016_sbc_data *apq8016_sbc_parse_of(struct snd_soc_card *card)
{
	struct device *dev = card->dev;
	struct snd_soc_dai_link *link;
	struct device_node *np, *codec, *cpu, *node  = dev->of_node;
	struct apq8016_sbc_data *data;
	int ret, num_links;

	ret = snd_soc_of_parse_card_name(card, "qcom,model");
	if (ret) {
		dev_err(dev, "Error parsing card name: %d\n", ret);
		return ERR_PTR(ret);
	}

	/* DAPM routes */
	if (of_property_read_bool(node, "qcom,audio-routing")) {
		ret = snd_soc_of_parse_audio_routing(card,
					"qcom,audio-routing");
		if (ret)
			return ERR_PTR(ret);
	}


	/* Populate links */
	num_links = of_get_child_count(node);

	/* Allocate the private data and the DAI link array */
	data = devm_kzalloc(dev, sizeof(*data) + sizeof(*link) * num_links,
			    GFP_KERNEL);
	if (!data)
		return ERR_PTR(-ENOMEM);

	card->dai_link	= &data->dai_link[0];
	card->num_links	= num_links;

	link = data->dai_link;

	for_each_child_of_node(node, np) {
		cpu = of_get_child_by_name(np, "cpu");
		codec = of_get_child_by_name(np, "codec");

		if (!cpu || !codec) {
			dev_err(dev, "Can't find cpu/codec DT node\n");
			return ERR_PTR(-EINVAL);
		}

		link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0);
		if (!link->cpu_of_node) {
			dev_err(card->dev, "error getting cpu phandle\n");
			return ERR_PTR(-EINVAL);
		}

		ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
		if (ret) {
			dev_err(card->dev, "error getting cpu dai name\n");
			return ERR_PTR(ret);
		}

		ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);

		if (ret < 0) {
			dev_err(card->dev, "error getting codec dai name\n");
			return ERR_PTR(ret);
		}

		link->platform_of_node = link->cpu_of_node;
		ret = of_property_read_string(np, "link-name", &link->name);
		if (ret) {
			dev_err(card->dev, "error getting codec dai_link name\n");
			return ERR_PTR(ret);
		}

		link->stream_name = link->name;
		link->init = apq8016_sbc_dai_init;
		link++;
	}

	return data;
}

static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {

	SND_SOC_DAPM_MIC("Handset Mic", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Secondary Mic", NULL),
	SND_SOC_DAPM_MIC("Digital Mic1", NULL),
	SND_SOC_DAPM_MIC("Digital Mic2", NULL),
};

static int apq8016_sbc_platform_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct snd_soc_card *card;
	struct apq8016_sbc_data *data;
	struct resource *res;

	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
	if (!card)
		return -ENOMEM;

	card->dev = dev;
	card->dapm_widgets = apq8016_sbc_dapm_widgets;
	card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
	data = apq8016_sbc_parse_of(card);
	if (IS_ERR(data)) {
		dev_err(&pdev->dev, "Error resolving dai links: %ld\n",
			PTR_ERR(data));
		return PTR_ERR(data);
	}

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
	data->mic_iomux = devm_ioremap_resource(dev, res);
	if (IS_ERR(data->mic_iomux))
		return PTR_ERR(data->mic_iomux);

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
	data->spkr_iomux = devm_ioremap_resource(dev, res);
	if (IS_ERR(data->spkr_iomux))
		return PTR_ERR(data->spkr_iomux);

	snd_soc_card_set_drvdata(card, data);

	return devm_snd_soc_register_card(&pdev->dev, card);
}

static const struct of_device_id apq8016_sbc_device_id[]  = {
	{ .compatible = "qcom,apq8016-sbc-sndcard" },
	{},
};
MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);

static struct platform_driver apq8016_sbc_platform_driver = {
	.driver = {
		.name = "qcom-apq8016-sbc",
		.of_match_table = of_match_ptr(apq8016_sbc_device_id),
	},
	.probe = apq8016_sbc_platform_probe,
};
module_platform_driver(apq8016_sbc_platform_driver);

MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
bdb052e8 SK	1	/*
	2	* Copyright (c) 2015 The Linux Foundation. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 and
	6	* only version 2 as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	*/
	14
	15	#include <linux/device.h>
	16	#include <linux/module.h>
	17	#include <linux/kernel.h>
	18	#include <linux/io.h>
	19	#include <linux/of.h>
	20	#include <linux/clk.h>
	21	#include <linux/platform_device.h>
	22	#include <sound/pcm.h>
	23	#include <sound/pcm_params.h>
b47b91c8	24	#include <sound/jack.h>
bdb052e8	25	#include <sound/soc.h>
b47b91c8	26	#include <uapi/linux/input-event-codes.h>
bdb052e8 SK	27	#include <dt-bindings/sound/apq8016-lpass.h>
	28
	29	struct apq8016_sbc_data {
	30	void __iomem *mic_iomux;
	31	void __iomem *spkr_iomux;
b47b91c8 SK	32	struct snd_soc_jack jack;
b47b91c8 SK	33	bool jack_setup;
bdb052e8 SK	34	struct snd_soc_dai_link dai_link[]; /* dynamically allocated */
	35	};
	36
bbedefb9	37	#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21)
bdb052e8 SK	38	#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17)
	39	#define MIC_CTRL_TLMM_SCLK_EN BIT(1)
	40	#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) \| BIT(16))
334822a3	41	#define DEFAULT_MCLK_RATE 9600000
bdb052e8 SK	42
	43	static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
	44	{
	45	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
96e1b9ee	46	struct snd_soc_component *component;
334822a3	47	struct snd_soc_dai_link *dai_link = rtd->dai_link;
bdb052e8 SK	48	struct snd_soc_card *card = rtd->card;
bdb052e8 SK	49	struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
334822a3	50	int i, rval;
bdb052e8 SK	51
	52	switch (cpu_dai->id) {
	53	case MI2S_PRIMARY:
	54	writel(readl(pdata->spkr_iomux) \| SPKR_CTL_PRI_WS_SLAVE_SEL_11,
	55	pdata->spkr_iomux);
	56	break;
	57
	58	case MI2S_QUATERNARY:
	59	/* Configure the Quat MI2S to TLMM */
	60	writel(readl(pdata->mic_iomux) \| MIC_CTRL_QUA_WS_SLAVE_SEL_10 \|
	61	MIC_CTRL_TLMM_SCLK_EN,
	62	pdata->mic_iomux);
	63	break;
bbedefb9 SK	64	case MI2S_TERTIARY:
	65	writel(readl(pdata->mic_iomux) \| MIC_CTRL_TER_WS_SLAVE_SEL \|
	66	MIC_CTRL_TLMM_SCLK_EN,
	67	pdata->mic_iomux);
	68
	69	break;
bdb052e8 SK	70
	71	default:
	72	dev_err(card->dev, "unsupported cpu dai configuration\n");
334822a3 SK	73	return -EINVAL;
	74
	75	}
bdb052e8	76
b47b91c8 SK	77	if (!pdata->jack_setup) {
	78	struct snd_jack *jack;
	79
	80	rval = snd_soc_card_jack_new(card, "Headset Jack",
	81	SND_JACK_HEADSET \|
	82	SND_JACK_HEADPHONE \|
	83	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	84	SND_JACK_BTN_2 \| SND_JACK_BTN_3 \|
	85	SND_JACK_BTN_4,
	86	&pdata->jack, NULL, 0);
	87
	88	if (rval < 0) {
	89	dev_err(card->dev, "Unable to add Headphone Jack\n");
	90	return rval;
	91	}
	92
	93	jack = pdata->jack.jack;
	94
5f6d1df8	95	snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
b47b91c8 SK	96	snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
	97	snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
	98	snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
	99	pdata->jack_setup = true;
	100	}
	101
334822a3 SK	102	for (i = 0 ; i < dai_link->num_codecs; i++) {
	103	struct snd_soc_dai *dai = rtd->codec_dais[i];
	104
96e1b9ee	105	component = dai->component;
334822a3	106	/* Set default mclk for internal codec */
96e1b9ee	107	rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
334822a3 SK	108	SND_SOC_CLOCK_IN);
	109	if (rval != 0 && rval != -ENOTSUPP) {
	110	dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
	111	return rval;
	112	}
96e1b9ee	113	rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
b47b91c8 SK	114	if (rval != 0 && rval != -ENOTSUPP) {
	115	dev_warn(card->dev, "Failed to set jack: %d\n", rval);
	116	return rval;
	117	}
bdb052e8 SK	118	}
bdb052e8 SK	119
334822a3	120	return 0;
bdb052e8 SK	121	}
	122
	123	static struct apq8016_sbc_data apq8016_sbc_parse_of(struct snd_soc_card card)
	124	{
	125	struct device *dev = card->dev;
	126	struct snd_soc_dai_link *link;
	127	struct device_node np, codec, cpu, node = dev->of_node;
	128	struct apq8016_sbc_data *data;
	129	int ret, num_links;
	130
	131	ret = snd_soc_of_parse_card_name(card, "qcom,model");
	132	if (ret) {
	133	dev_err(dev, "Error parsing card name: %d\n", ret);
	134	return ERR_PTR(ret);
	135	}
	136
05f9033f SK	137	/* DAPM routes */
	138	if (of_property_read_bool(node, "qcom,audio-routing")) {
	139	ret = snd_soc_of_parse_audio_routing(card,
	140	"qcom,audio-routing");
	141	if (ret)
	142	return ERR_PTR(ret);
	143	}
	144
	145
bdb052e8 SK	146	/* Populate links */
	147	num_links = of_get_child_count(node);
	148
	149	/* Allocate the private data and the DAI link array */
	150	data = devm_kzalloc(dev, sizeof(data) + sizeof(link) * num_links,
	151	GFP_KERNEL);
	152	if (!data)
	153	return ERR_PTR(-ENOMEM);
	154
	155	card->dai_link = &data->dai_link[0];
	156	card->num_links = num_links;
	157
	158	link = data->dai_link;
	159
	160	for_each_child_of_node(node, np) {
	161	cpu = of_get_child_by_name(np, "cpu");
	162	codec = of_get_child_by_name(np, "codec");
	163
	164	if (!cpu \|\| !codec) {
	165	dev_err(dev, "Can't find cpu/codec DT node\n");
	166	return ERR_PTR(-EINVAL);
	167	}
	168
	169	link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0);
	170	if (!link->cpu_of_node) {
	171	dev_err(card->dev, "error getting cpu phandle\n");
	172	return ERR_PTR(-EINVAL);
	173	}
	174
bdb052e8 SK	175	ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
	176	if (ret) {
	177	dev_err(card->dev, "error getting cpu dai name\n");
	178	return ERR_PTR(ret);
	179	}
	180
09065f8b SK	181	ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
	182
	183	if (ret < 0) {
bdb052e8 SK	184	dev_err(card->dev, "error getting codec dai name\n");
	185	return ERR_PTR(ret);
	186	}
	187
	188	link->platform_of_node = link->cpu_of_node;
bdb052e8 SK	189	ret = of_property_read_string(np, "link-name", &link->name);
	190	if (ret) {
	191	dev_err(card->dev, "error getting codec dai_link name\n");
	192	return ERR_PTR(ret);
	193	}
	194
	195	link->stream_name = link->name;
	196	link->init = apq8016_sbc_dai_init;
	197	link++;
	198	}
	199
	200	return data;
	201	}
	202
1190300d SK	203	static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {
	204
	205	SND_SOC_DAPM_MIC("Handset Mic", NULL),
	206	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	207	SND_SOC_DAPM_MIC("Secondary Mic", NULL),
	208	SND_SOC_DAPM_MIC("Digital Mic1", NULL),
	209	SND_SOC_DAPM_MIC("Digital Mic2", NULL),
	210	};
	211
bdb052e8 SK	212	static int apq8016_sbc_platform_probe(struct platform_device *pdev)
	213	{
	214	struct device *dev = &pdev->dev;
	215	struct snd_soc_card *card;
	216	struct apq8016_sbc_data *data;
	217	struct resource *res;
	218
	219	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
	220	if (!card)
	221	return -ENOMEM;
	222
	223	card->dev = dev;
1190300d SK	224	card->dapm_widgets = apq8016_sbc_dapm_widgets;
1190300d SK	225	card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
bdb052e8 SK	226	data = apq8016_sbc_parse_of(card);
	227	if (IS_ERR(data)) {
	228	dev_err(&pdev->dev, "Error resolving dai links: %ld\n",
	229	PTR_ERR(data));
	230	return PTR_ERR(data);
	231	}
	232
	233	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
	234	data->mic_iomux = devm_ioremap_resource(dev, res);
	235	if (IS_ERR(data->mic_iomux))
	236	return PTR_ERR(data->mic_iomux);
	237
	238	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
	239	data->spkr_iomux = devm_ioremap_resource(dev, res);
	240	if (IS_ERR(data->spkr_iomux))
	241	return PTR_ERR(data->spkr_iomux);
	242
bdb052e8 SK	243	snd_soc_card_set_drvdata(card, data);
	244
	245	return devm_snd_soc_register_card(&pdev->dev, card);
	246	}
	247
	248	static const struct of_device_id apq8016_sbc_device_id[] = {
	249	{ .compatible = "qcom,apq8016-sbc-sndcard" },
	250	{},
	251	};
	252	MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
	253
	254	static struct platform_driver apq8016_sbc_platform_driver = {
	255	.driver = {
	256	.name = "qcom-apq8016-sbc",
	257	.of_match_table = of_match_ptr(apq8016_sbc_device_id),
	258	},
	259	.probe = apq8016_sbc_platform_probe,
	260	};
	261	module_platform_driver(apq8016_sbc_platform_driver);
	262
	263	MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
	264	MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
	265	MODULE_LICENSE("GPL v2");