1// SPDX-License-Identifier: GPL-2.0
2// Copyright (c) 2023, Linaro Limited
3
4#include <dt-bindings/sound/qcom,q6afe.h>
5#include <linux/module.h>
6#include <linux/platform_device.h>
7#include <linux/soundwire/sdw.h>
8#include <sound/pcm.h>
9#include <sound/jack.h>
10#include <sound/soc.h>
11#include <sound/soc-dapm.h>
12
13#include "common.h"
14#include "qdsp6/q6afe.h"
15#include "sdw.h"
16
17struct x1e80100_snd_data {
18 bool stream_prepared[AFE_PORT_MAX];
19 struct snd_soc_card *card;
20 struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
21 struct snd_soc_jack jack;
22 bool jack_setup;
23};
24
25static int x1e80100_snd_init(struct snd_soc_pcm_runtime *rtd)
26{
27 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
28
29 return qcom_snd_wcd_jack_setup(rtd, jack: &data->jack, jack_setup: &data->jack_setup);
30}
31
32static void x1e80100_snd_shutdown(struct snd_pcm_substream *substream)
33{
34 struct snd_soc_pcm_runtime *rtd = substream->private_data;
35 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
36 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
37 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
38
39 data->sruntime[cpu_dai->id] = NULL;
40 sdw_release_stream(stream: sruntime);
41}
42
43static int x1e80100_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
44 struct snd_pcm_hw_params *params)
45{
46 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
47 struct snd_interval *rate = hw_param_interval(params,
48 SNDRV_PCM_HW_PARAM_RATE);
49 struct snd_interval *channels = hw_param_interval(params,
50 SNDRV_PCM_HW_PARAM_CHANNELS);
51
52 rate->min = rate->max = 48000;
53 switch (cpu_dai->id) {
54 case TX_CODEC_DMA_TX_0:
55 case TX_CODEC_DMA_TX_1:
56 case TX_CODEC_DMA_TX_2:
57 case TX_CODEC_DMA_TX_3:
58 channels->min = 1;
59 break;
60 default:
61 break;
62 }
63
64 return 0;
65}
66
67static int x1e80100_snd_hw_params(struct snd_pcm_substream *substream,
68 struct snd_pcm_hw_params *params)
69{
70 struct snd_soc_pcm_runtime *rtd = substream->private_data;
71 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
72 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
73
74 return qcom_snd_sdw_hw_params(substream, params, psruntime: &data->sruntime[cpu_dai->id]);
75}
76
77static int x1e80100_snd_prepare(struct snd_pcm_substream *substream)
78{
79 struct snd_soc_pcm_runtime *rtd = substream->private_data;
80 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
81 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
82 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
83
84 return qcom_snd_sdw_prepare(substream, runtime: sruntime,
85 stream_prepared: &data->stream_prepared[cpu_dai->id]);
86}
87
88static int x1e80100_snd_hw_free(struct snd_pcm_substream *substream)
89{
90 struct snd_soc_pcm_runtime *rtd = substream->private_data;
91 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
92 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
93 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
94
95 return qcom_snd_sdw_hw_free(substream, sruntime,
96 stream_prepared: &data->stream_prepared[cpu_dai->id]);
97}
98
99static const struct snd_soc_ops x1e80100_be_ops = {
100 .startup = qcom_snd_sdw_startup,
101 .shutdown = x1e80100_snd_shutdown,
102 .hw_params = x1e80100_snd_hw_params,
103 .hw_free = x1e80100_snd_hw_free,
104 .prepare = x1e80100_snd_prepare,
105};
106
107static void x1e80100_add_be_ops(struct snd_soc_card *card)
108{
109 struct snd_soc_dai_link *link;
110 int i;
111
112 for_each_card_prelinks(card, i, link) {
113 if (link->no_pcm == 1) {
114 link->init = x1e80100_snd_init;
115 link->be_hw_params_fixup = x1e80100_be_hw_params_fixup;
116 link->ops = &x1e80100_be_ops;
117 }
118 }
119}
120
121static int x1e80100_platform_probe(struct platform_device *pdev)
122{
123 struct snd_soc_card *card;
124 struct x1e80100_snd_data *data;
125 struct device *dev = &pdev->dev;
126 int ret;
127
128 card = devm_kzalloc(dev, size: sizeof(*card), GFP_KERNEL);
129 if (!card)
130 return -ENOMEM;
131 /* Allocate the private data */
132 data = devm_kzalloc(dev, size: sizeof(*data), GFP_KERNEL);
133 if (!data)
134 return -ENOMEM;
135
136 card->owner = THIS_MODULE;
137 card->dev = dev;
138 dev_set_drvdata(dev, data: card);
139 snd_soc_card_set_drvdata(card, data);
140
141 ret = qcom_snd_parse_of(card);
142 if (ret)
143 return ret;
144
145 card->driver_name = "x1e80100";
146 x1e80100_add_be_ops(card);
147
148 return devm_snd_soc_register_card(dev, card);
149}
150
151static const struct of_device_id snd_x1e80100_dt_match[] = {
152 { .compatible = "qcom,x1e80100-sndcard", },
153 {}
154};
155MODULE_DEVICE_TABLE(of, snd_x1e80100_dt_match);
156
157static struct platform_driver snd_x1e80100_driver = {
158 .probe = x1e80100_platform_probe,
159 .driver = {
160 .name = "snd-x1e80100",
161 .of_match_table = snd_x1e80100_dt_match,
162 },
163};
164module_platform_driver(snd_x1e80100_driver);
165MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
166MODULE_AUTHOR("Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>");
167MODULE_DESCRIPTION("Qualcomm X1E80100 ASoC Machine Driver");
168MODULE_LICENSE("GPL");
169

source code of linux/sound/soc/qcom/x1e80100.c