[linux-2.6-block.git] / sound / soc / qcom / apq8016_sbc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2015 The Linux Foundation. All rights reserved.
 */

#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;
	struct snd_soc_dai_link_component *dlc;
	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,
			    struct_size(data, dai_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) {
		dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
		if (!dlc)
			return ERR_PTR(-ENOMEM);

		link->cpus	= &dlc[0];
		link->platforms	= &dlc[1];

		link->num_cpus		= 1;
		link->num_platforms	= 1;

		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");
			ret = -EINVAL;
			goto error;
		}

		link->cpus->of_node = of_parse_phandle(cpu, "sound-dai", 0);
		if (!link->cpus->of_node) {
			dev_err(card->dev, "error getting cpu phandle\n");
			ret = -EINVAL;
			goto error;
		}

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

		ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);

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

		link->platforms->of_node = link->cpus->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");
			goto error;
		}

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

		of_node_put(cpu);
		of_node_put(codec);
	}

	return data;

 error:
	of_node_put(np);
	of_node_put(cpu);
	of_node_put(codec);
	return ERR_PTR(ret);
}

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
97fb5e8d	1	// SPDX-License-Identifier: GPL-2.0-only
bdb052e8 SK	2	/*
bdb052e8 SK	3	* Copyright (c) 2015 The Linux Foundation. All rights reserved.
bdb052e8 SK	4	*/
	5
	6	#include <linux/device.h>
	7	#include <linux/module.h>
	8	#include <linux/kernel.h>
	9	#include <linux/io.h>
	10	#include <linux/of.h>
	11	#include <linux/clk.h>
	12	#include <linux/platform_device.h>
	13	#include <sound/pcm.h>
	14	#include <sound/pcm_params.h>
b47b91c8	15	#include <sound/jack.h>
bdb052e8	16	#include <sound/soc.h>
b47b91c8	17	#include <uapi/linux/input-event-codes.h>
bdb052e8 SK	18	#include <dt-bindings/sound/apq8016-lpass.h>
	19
	20	struct apq8016_sbc_data {
	21	void __iomem *mic_iomux;
	22	void __iomem *spkr_iomux;
b47b91c8 SK	23	struct snd_soc_jack jack;
b47b91c8 SK	24	bool jack_setup;
bdb052e8 SK	25	struct snd_soc_dai_link dai_link[]; /* dynamically allocated */
	26	};
	27
bbedefb9	28	#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21)
bdb052e8 SK	29	#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17)
	30	#define MIC_CTRL_TLMM_SCLK_EN BIT(1)
	31	#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) \| BIT(16))
334822a3	32	#define DEFAULT_MCLK_RATE 9600000
bdb052e8 SK	33
	34	static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
	35	{
	36	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
96e1b9ee	37	struct snd_soc_component *component;
334822a3	38	struct snd_soc_dai_link *dai_link = rtd->dai_link;
bdb052e8 SK	39	struct snd_soc_card *card = rtd->card;
bdb052e8 SK	40	struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
334822a3	41	int i, rval;
bdb052e8 SK	42
	43	switch (cpu_dai->id) {
	44	case MI2S_PRIMARY:
	45	writel(readl(pdata->spkr_iomux) \| SPKR_CTL_PRI_WS_SLAVE_SEL_11,
	46	pdata->spkr_iomux);
	47	break;
	48
	49	case MI2S_QUATERNARY:
	50	/* Configure the Quat MI2S to TLMM */
	51	writel(readl(pdata->mic_iomux) \| MIC_CTRL_QUA_WS_SLAVE_SEL_10 \|
	52	MIC_CTRL_TLMM_SCLK_EN,
	53	pdata->mic_iomux);
	54	break;
bbedefb9 SK	55	case MI2S_TERTIARY:
	56	writel(readl(pdata->mic_iomux) \| MIC_CTRL_TER_WS_SLAVE_SEL \|
	57	MIC_CTRL_TLMM_SCLK_EN,
	58	pdata->mic_iomux);
	59
	60	break;
bdb052e8 SK	61
	62	default:
	63	dev_err(card->dev, "unsupported cpu dai configuration\n");
334822a3 SK	64	return -EINVAL;
	65
	66	}
bdb052e8	67
b47b91c8 SK	68	if (!pdata->jack_setup) {
	69	struct snd_jack *jack;
	70
	71	rval = snd_soc_card_jack_new(card, "Headset Jack",
	72	SND_JACK_HEADSET \|
	73	SND_JACK_HEADPHONE \|
	74	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	75	SND_JACK_BTN_2 \| SND_JACK_BTN_3 \|
	76	SND_JACK_BTN_4,
	77	&pdata->jack, NULL, 0);
	78
	79	if (rval < 0) {
	80	dev_err(card->dev, "Unable to add Headphone Jack\n");
	81	return rval;
	82	}
	83
	84	jack = pdata->jack.jack;
	85
5f6d1df8	86	snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
b47b91c8 SK	87	snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
	88	snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
	89	snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
	90	pdata->jack_setup = true;
	91	}
	92
334822a3 SK	93	for (i = 0 ; i < dai_link->num_codecs; i++) {
	94	struct snd_soc_dai *dai = rtd->codec_dais[i];
	95
96e1b9ee	96	component = dai->component;
334822a3	97	/* Set default mclk for internal codec */
96e1b9ee	98	rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
334822a3 SK	99	SND_SOC_CLOCK_IN);
	100	if (rval != 0 && rval != -ENOTSUPP) {
	101	dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
	102	return rval;
	103	}
96e1b9ee	104	rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
b47b91c8 SK	105	if (rval != 0 && rval != -ENOTSUPP) {
	106	dev_warn(card->dev, "Failed to set jack: %d\n", rval);
	107	return rval;
	108	}
bdb052e8 SK	109	}
bdb052e8 SK	110
334822a3	111	return 0;
bdb052e8 SK	112	}
	113
	114	static struct apq8016_sbc_data apq8016_sbc_parse_of(struct snd_soc_card card)
	115	{
	116	struct device *dev = card->dev;
	117	struct snd_soc_dai_link *link;
	118	struct device_node np, codec, cpu, node = dev->of_node;
	119	struct apq8016_sbc_data *data;
98b232ca	120	struct snd_soc_dai_link_component *dlc;
bdb052e8 SK	121	int ret, num_links;
	122
	123	ret = snd_soc_of_parse_card_name(card, "qcom,model");
	124	if (ret) {
	125	dev_err(dev, "Error parsing card name: %d\n", ret);
	126	return ERR_PTR(ret);
	127	}
	128
05f9033f SK	129	/* DAPM routes */
	130	if (of_property_read_bool(node, "qcom,audio-routing")) {
	131	ret = snd_soc_of_parse_audio_routing(card,
	132	"qcom,audio-routing");
	133	if (ret)
	134	return ERR_PTR(ret);
	135	}
	136
	137
bdb052e8 SK	138	/* Populate links */
	139	num_links = of_get_child_count(node);
	140
	141	/* Allocate the private data and the DAI link array */
0ed2dd03 KC	142	data = devm_kzalloc(dev,
0ed2dd03 KC	143	struct_size(data, dai_link, num_links),
bdb052e8 SK	144	GFP_KERNEL);
	145	if (!data)
	146	return ERR_PTR(-ENOMEM);
	147
	148	card->dai_link = &data->dai_link[0];
	149	card->num_links = num_links;
	150
	151	link = data->dai_link;
	152
8201f11a SG	153	for_each_child_of_node(node, np) {
	154	dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
	155	if (!dlc)
	156	return ERR_PTR(-ENOMEM);
98b232ca	157
8201f11a SG	158	link->cpus = &dlc[0];
8201f11a SG	159	link->platforms = &dlc[1];
291728a5	160
8201f11a SG	161	link->num_cpus = 1;
8201f11a SG	162	link->num_platforms = 1;
98b232ca	163
bdb052e8 SK	164	cpu = of_get_child_by_name(np, "cpu");
	165	codec = of_get_child_by_name(np, "codec");
	166
	167	if (!cpu \|\| !codec) {
	168	dev_err(dev, "Can't find cpu/codec DT node\n");
8d166720 TI	169	ret = -EINVAL;
8d166720 TI	170	goto error;
bdb052e8 SK	171	}
bdb052e8 SK	172
98b232ca KM	173	link->cpus->of_node = of_parse_phandle(cpu, "sound-dai", 0);
98b232ca KM	174	if (!link->cpus->of_node) {
bdb052e8	175	dev_err(card->dev, "error getting cpu phandle\n");
8d166720 TI	176	ret = -EINVAL;
8d166720 TI	177	goto error;
bdb052e8 SK	178	}
bdb052e8 SK	179
98b232ca	180	ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
bdb052e8 SK	181	if (ret) {
bdb052e8 SK	182	dev_err(card->dev, "error getting cpu dai name\n");
8d166720	183	goto error;
bdb052e8 SK	184	}
bdb052e8 SK	185
09065f8b SK	186	ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
	187
	188	if (ret < 0) {
bdb052e8	189	dev_err(card->dev, "error getting codec dai name\n");
8d166720	190	goto error;
bdb052e8 SK	191	}
bdb052e8 SK	192
291728a5	193	link->platforms->of_node = link->cpus->of_node;
bdb052e8 SK	194	ret = of_property_read_string(np, "link-name", &link->name);
	195	if (ret) {
	196	dev_err(card->dev, "error getting codec dai_link name\n");
8d166720	197	goto error;
bdb052e8 SK	198	}
	199
	200	link->stream_name = link->name;
	201	link->init = apq8016_sbc_dai_init;
	202	link++;
8d166720 TI	203
	204	of_node_put(cpu);
	205	of_node_put(codec);
bdb052e8 SK	206	}
	207
	208	return data;
8d166720 TI	209
	210	error:
	211	of_node_put(np);
	212	of_node_put(cpu);
	213	of_node_put(codec);
	214	return ERR_PTR(ret);
bdb052e8 SK	215	}
bdb052e8 SK	216
1190300d SK	217	static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {
	218
	219	SND_SOC_DAPM_MIC("Handset Mic", NULL),
	220	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	221	SND_SOC_DAPM_MIC("Secondary Mic", NULL),
	222	SND_SOC_DAPM_MIC("Digital Mic1", NULL),
	223	SND_SOC_DAPM_MIC("Digital Mic2", NULL),
	224	};
	225
bdb052e8 SK	226	static int apq8016_sbc_platform_probe(struct platform_device *pdev)
	227	{
	228	struct device *dev = &pdev->dev;
	229	struct snd_soc_card *card;
	230	struct apq8016_sbc_data *data;
	231	struct resource *res;
	232
	233	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
	234	if (!card)
	235	return -ENOMEM;
	236
	237	card->dev = dev;
1190300d SK	238	card->dapm_widgets = apq8016_sbc_dapm_widgets;
1190300d SK	239	card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
bdb052e8 SK	240	data = apq8016_sbc_parse_of(card);
	241	if (IS_ERR(data)) {
	242	dev_err(&pdev->dev, "Error resolving dai links: %ld\n",
	243	PTR_ERR(data));
	244	return PTR_ERR(data);
	245	}
	246
	247	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
	248	data->mic_iomux = devm_ioremap_resource(dev, res);
	249	if (IS_ERR(data->mic_iomux))
	250	return PTR_ERR(data->mic_iomux);
	251
	252	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
	253	data->spkr_iomux = devm_ioremap_resource(dev, res);
	254	if (IS_ERR(data->spkr_iomux))
	255	return PTR_ERR(data->spkr_iomux);
	256
bdb052e8 SK	257	snd_soc_card_set_drvdata(card, data);
	258
	259	return devm_snd_soc_register_card(&pdev->dev, card);
	260	}
	261
	262	static const struct of_device_id apq8016_sbc_device_id[] = {
	263	{ .compatible = "qcom,apq8016-sbc-sndcard" },
	264	{},
	265	};
	266	MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
	267
	268	static struct platform_driver apq8016_sbc_platform_driver = {
	269	.driver = {
	270	.name = "qcom-apq8016-sbc",
	271	.of_match_table = of_match_ptr(apq8016_sbc_device_id),
	272	},
	273	.probe = apq8016_sbc_platform_probe,
	274	};
	275	module_platform_driver(apq8016_sbc_platform_driver);
	276
	277	MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
	278	MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
	279	MODULE_LICENSE("GPL v2");