[linux-2.6-block.git] / sound / soc / qcom / sdm845.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "common.h"
#include "qdsp6/q6afe.h"

#define DEFAULT_SAMPLE_RATE_48K		48000
#define DEFAULT_MCLK_RATE		24576000
#define DEFAULT_BCLK_RATE		12288000

struct sdm845_snd_data {
	struct snd_soc_card *card;
	uint32_t pri_mi2s_clk_count;
	uint32_t quat_tdm_clk_count;
};

static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};

static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int ret = 0;
	int channels, slot_width;

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		slot_width = 32;
		break;
	default:
		dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
				__func__, params_format(params));
		return -EINVAL;
	}

	channels = params_channels(params);
	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3,
				8, slot_width);
		if (ret < 0) {
			dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
					__func__, ret);
			goto end;
		}

		ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
				channels, tdm_slot_offset);
		if (ret < 0) {
			dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
					__func__, ret);
			goto end;
		}
	} else {
		ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0,
				8, slot_width);
		if (ret < 0) {
			dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
					__func__, ret);
			goto end;
		}

		ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
				tdm_slot_offset, 0, NULL);
		if (ret < 0) {
			dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
					__func__, ret);
			goto end;
		}
	}
end:
	return ret;
}

static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int ret = 0;

	switch (cpu_dai->id) {
	case QUATERNARY_TDM_RX_0:
	case QUATERNARY_TDM_TX_0:
		ret = sdm845_tdm_snd_hw_params(substream, params);
		break;
	default:
		pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
		break;
	}
	return ret;
}

static int sdm845_snd_startup(struct snd_pcm_substream *substream)
{
	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;

	switch (cpu_dai->id) {
	case PRIMARY_MI2S_RX:
	case PRIMARY_MI2S_TX:
		if (++(data->pri_mi2s_clk_count) == 1) {
			snd_soc_dai_set_sysclk(cpu_dai,
				Q6AFE_LPASS_CLK_ID_MCLK_1,
				DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
			snd_soc_dai_set_sysclk(cpu_dai,
				Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
				DEFAULT_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
		}
		snd_soc_dai_set_fmt(cpu_dai, fmt);
		break;

	case QUATERNARY_TDM_RX_0:
	case QUATERNARY_TDM_TX_0:
		if (++(data->quat_tdm_clk_count) == 1) {
			snd_soc_dai_set_sysclk(cpu_dai,
				Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
				DEFAULT_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
		}
		break;

	default:
		pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
		break;
	}
	return 0;
}

static void  sdm845_snd_shutdown(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;

	switch (cpu_dai->id) {
	case PRIMARY_MI2S_RX:
	case PRIMARY_MI2S_TX:
		if (--(data->pri_mi2s_clk_count) == 0) {
			snd_soc_dai_set_sysclk(cpu_dai,
				Q6AFE_LPASS_CLK_ID_MCLK_1,
				0, SNDRV_PCM_STREAM_PLAYBACK);
			snd_soc_dai_set_sysclk(cpu_dai,
				Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
				0, SNDRV_PCM_STREAM_PLAYBACK);
		};
		break;

	case QUATERNARY_TDM_RX_0:
	case QUATERNARY_TDM_TX_0:
		if (--(data->quat_tdm_clk_count) == 0) {
			snd_soc_dai_set_sysclk(cpu_dai,
				Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
				0, SNDRV_PCM_STREAM_PLAYBACK);
		}
		break;

	default:
		pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
		break;
	}
}

static const struct snd_soc_ops sdm845_be_ops = {
	.hw_params = sdm845_snd_hw_params,
	.startup = sdm845_snd_startup,
	.shutdown = sdm845_snd_shutdown,
};

static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
				struct snd_pcm_hw_params *params)
{
	struct snd_interval *rate = hw_param_interval(params,
					SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
					SNDRV_PCM_HW_PARAM_CHANNELS);
	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

	rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
	channels->min = channels->max = 2;
	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);

	return 0;
}

static void sdm845_add_be_ops(struct snd_soc_card *card)
{
	struct snd_soc_dai_link *link;
	int i;

	for_each_card_prelinks(card, i, link) {
		if (link->no_pcm == 1) {
			link->ops = &sdm845_be_ops;
			link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
		}
	}
}

static int sdm845_snd_platform_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card;
	struct sdm845_snd_data *data;
	struct device *dev = &pdev->dev;
	int ret;

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

	/* Allocate the private data */
	data = kzalloc(sizeof(*data), GFP_KERNEL);
	if (!data) {
		ret = -ENOMEM;
		goto data_alloc_fail;
	}

	card->dev = dev;
	dev_set_drvdata(dev, card);
	ret = qcom_snd_parse_of(card);
	if (ret) {
		dev_err(dev, "Error parsing OF data\n");
		goto parse_dt_fail;
	}

	data->card = card;
	snd_soc_card_set_drvdata(card, data);

	sdm845_add_be_ops(card);
	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(dev, "Sound card registration failed\n");
		goto register_card_fail;
	}
	return ret;

register_card_fail:
	kfree(card->dai_link);
parse_dt_fail:
	kfree(data);
data_alloc_fail:
	kfree(card);
	return ret;
}

static int sdm845_snd_platform_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);

	snd_soc_unregister_card(card);
	kfree(card->dai_link);
	kfree(data);
	kfree(card);
	return 0;
}

static const struct of_device_id sdm845_snd_device_id[]  = {
	{ .compatible = "qcom,sdm845-sndcard" },
	{},
};
MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);

static struct platform_driver sdm845_snd_driver = {
	.probe = sdm845_snd_platform_probe,
	.remove = sdm845_snd_platform_remove,
	.driver = {
		.name = "msm-snd-sdm845",
		.of_match_table = sdm845_snd_device_id,
	},
};
module_platform_driver(sdm845_snd_driver);

MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
6b1687bf R	1	// SPDX-License-Identifier: GPL-2.0
	2	/*
	3	* Copyright (c) 2018, The Linux Foundation. All rights reserved.
	4	*/
	5
	6	#include <linux/module.h>
	7	#include <linux/platform_device.h>
6b1687bf R	8	#include <linux/of_device.h>
	9	#include <sound/pcm.h>
	10	#include <sound/pcm_params.h>
6b1687bf R	11	#include "common.h"
	12	#include "qdsp6/q6afe.h"
	13
	14	#define DEFAULT_SAMPLE_RATE_48K 48000
	15	#define DEFAULT_MCLK_RATE 24576000
	16	#define DEFAULT_BCLK_RATE 12288000
	17
	18	struct sdm845_snd_data {
	19	struct snd_soc_card *card;
	20	uint32_t pri_mi2s_clk_count;
	21	uint32_t quat_tdm_clk_count;
	22	};
	23
	24	static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
	25
	26	static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
	27	struct snd_pcm_hw_params *params)
	28	{
	29	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	30	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	31	int ret = 0;
	32	int channels, slot_width;
	33
	34	switch (params_format(params)) {
	35	case SNDRV_PCM_FORMAT_S16_LE:
	36	slot_width = 32;
	37	break;
	38	default:
	39	dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
	40	__func__, params_format(params));
	41	return -EINVAL;
	42	}
	43
	44	channels = params_channels(params);
	45	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
	46	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3,
	47	8, slot_width);
	48	if (ret < 0) {
	49	dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
	50	__func__, ret);
	51	goto end;
	52	}
	53
	54	ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
	55	channels, tdm_slot_offset);
	56	if (ret < 0) {
	57	dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
	58	__func__, ret);
	59	goto end;
	60	}
	61	} else {
	62	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0,
	63	8, slot_width);
	64	if (ret < 0) {
	65	dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
	66	__func__, ret);
	67	goto end;
	68	}
	69
	70	ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
	71	tdm_slot_offset, 0, NULL);
	72	if (ret < 0) {
	73	dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
	74	__func__, ret);
75	goto end;
76	}
77	}
78	end:
79	return ret;
80	}
81
82	static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
83	struct snd_pcm_hw_params *params)
84	{
85	struct snd_soc_pcm_runtime *rtd = substream->private_data;
86	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
87	int ret = 0;
88
89	switch (cpu_dai->id) {
90	case QUATERNARY_TDM_RX_0:
91	case QUATERNARY_TDM_TX_0:
92	ret = sdm845_tdm_snd_hw_params(substream, params);
93	break;
94	default:
95	pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
96	break;
97	}
98	return ret;
99	}
100
101	static int sdm845_snd_startup(struct snd_pcm_substream *substream)
102	{
103	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
104	struct snd_soc_pcm_runtime *rtd = substream->private_data;
105	struct snd_soc_card *card = rtd->card;
106	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
107	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
108
109	switch (cpu_dai->id) {
110	case PRIMARY_MI2S_RX:
111	case PRIMARY_MI2S_TX:
112	if (++(data->pri_mi2s_clk_count) == 1) {
113	snd_soc_dai_set_sysclk(cpu_dai,
114	Q6AFE_LPASS_CLK_ID_MCLK_1,
115	DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
116	snd_soc_dai_set_sysclk(cpu_dai,
117	Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
118	DEFAULT_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
119	}
120	snd_soc_dai_set_fmt(cpu_dai, fmt);
121	break;
122
123	case QUATERNARY_TDM_RX_0:
124	case QUATERNARY_TDM_TX_0:
125	if (++(data->quat_tdm_clk_count) == 1) {
126	snd_soc_dai_set_sysclk(cpu_dai,
127	Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
128	DEFAULT_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
129	}
130	break;
131
132	default:
133	pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
134	break;
135	}
136	return 0;
137	}
138
139	static void sdm845_snd_shutdown(struct snd_pcm_substream *substream)
140	{
141	struct snd_soc_pcm_runtime *rtd = substream->private_data;
142	struct snd_soc_card *card = rtd->card;
143	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
144	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
145
146	switch (cpu_dai->id) {
147	case PRIMARY_MI2S_RX:
148	case PRIMARY_MI2S_TX:
149	if (--(data->pri_mi2s_clk_count) == 0) {
150	snd_soc_dai_set_sysclk(cpu_dai,
151	Q6AFE_LPASS_CLK_ID_MCLK_1,
152	0, SNDRV_PCM_STREAM_PLAYBACK);
153	snd_soc_dai_set_sysclk(cpu_dai,
154	Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
155	0, SNDRV_PCM_STREAM_PLAYBACK);
156	};
157	break;
158
159	case QUATERNARY_TDM_RX_0:
160	case QUATERNARY_TDM_TX_0:
161	if (--(data->quat_tdm_clk_count) == 0) {
162	snd_soc_dai_set_sysclk(cpu_dai,
163	Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
164	0, SNDRV_PCM_STREAM_PLAYBACK);
165	}
166	break;
167
168	default:
169	pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
170	break;
171	}
172	}
173
ff60005e	174	static const struct snd_soc_ops sdm845_be_ops = {
6b1687bf R	175	.hw_params = sdm845_snd_hw_params,
	176	.startup = sdm845_snd_startup,
	177	.shutdown = sdm845_snd_shutdown,
	178	};
	179
	180	static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
	181	struct snd_pcm_hw_params *params)
	182	{
	183	struct snd_interval *rate = hw_param_interval(params,
	184	SNDRV_PCM_HW_PARAM_RATE);
	185	struct snd_interval *channels = hw_param_interval(params,
	186	SNDRV_PCM_HW_PARAM_CHANNELS);
	187	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
	188
	189	rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
	190	channels->min = channels->max = 2;
	191	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
	192
	193	return 0;
	194	}
	195
	196	static void sdm845_add_be_ops(struct snd_soc_card *card)
	197	{
7fe072b4 KM	198	struct snd_soc_dai_link *link;
7fe072b4 KM	199	int i;
6b1687bf	200
7fe072b4	201	for_each_card_prelinks(card, i, link) {
6b1687bf R	202	if (link->no_pcm == 1) {
	203	link->ops = &sdm845_be_ops;
	204	link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
	205	}
6b1687bf R	206	}
	207	}
	208
	209	static int sdm845_snd_platform_probe(struct platform_device *pdev)
	210	{
	211	struct snd_soc_card *card;
	212	struct sdm845_snd_data *data;
	213	struct device *dev = &pdev->dev;
	214	int ret;
	215
	216	card = kzalloc(sizeof(*card), GFP_KERNEL);
	217	if (!card)
	218	return -ENOMEM;
	219
	220	/* Allocate the private data */
	221	data = kzalloc(sizeof(*data), GFP_KERNEL);
8530ebf1 GS	222	if (!data) {
	223	ret = -ENOMEM;
	224	goto data_alloc_fail;
	225	}
6b1687bf R	226
6b1687bf R	227	card->dev = dev;
6b1687bf R	228	dev_set_drvdata(dev, card);
	229	ret = qcom_snd_parse_of(card);
	230	if (ret) {
	231	dev_err(dev, "Error parsing OF data\n");
	232	goto parse_dt_fail;
	233	}
	234
	235	data->card = card;
	236	snd_soc_card_set_drvdata(card, data);
	237
	238	sdm845_add_be_ops(card);
	239	ret = snd_soc_register_card(card);
	240	if (ret) {
	241	dev_err(dev, "Sound card registration failed\n");
	242	goto register_card_fail;
	243	}
	244	return ret;
	245
	246	register_card_fail:
	247	kfree(card->dai_link);
	248	parse_dt_fail:
	249	kfree(data);
8530ebf1	250	data_alloc_fail:
6b1687bf R	251	kfree(card);
	252	return ret;
	253	}
	254
	255	static int sdm845_snd_platform_remove(struct platform_device *pdev)
	256	{
	257	struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
	258	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
	259
6b1687bf R	260	snd_soc_unregister_card(card);
	261	kfree(card->dai_link);
	262	kfree(data);
	263	kfree(card);
	264	return 0;
	265	}
	266
	267	static const struct of_device_id sdm845_snd_device_id[] = {
	268	{ .compatible = "qcom,sdm845-sndcard" },
	269	{},
	270	};
	271	MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
	272
	273	static struct platform_driver sdm845_snd_driver = {
	274	.probe = sdm845_snd_platform_probe,
	275	.remove = sdm845_snd_platform_remove,
	276	.driver = {
	277	.name = "msm-snd-sdm845",
	278	.of_match_table = sdm845_snd_device_id,
	279	},
	280	};
	281	module_platform_driver(sdm845_snd_driver);
	282
	283	MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
	284	MODULE_LICENSE("GPL v2");