1// SPDX-License-Identifier: GPL-2.0
2// Copyright (c) 2022, Linaro Limited
3
4#include <dt-bindings/sound/qcom,q6afe.h>
5#include <linux/module.h>
6#include <linux/platform_device.h>
7#include <sound/soc.h>
8#include <sound/soc-dapm.h>
9#include <sound/pcm.h>
10#include <sound/pcm_params.h>
11#include <linux/soundwire/sdw.h>
12#include <sound/jack.h>
13#include <linux/input-event-codes.h>
14#include "qdsp6/q6afe.h"
15#include "common.h"
16#include "sdw.h"
17
18struct sc8280xp_snd_data {
19 bool stream_prepared[AFE_PORT_MAX];
20 struct snd_soc_card *card;
21 struct snd_soc_jack jack;
22 struct snd_soc_jack dp_jack[8];
23 bool jack_setup;
24};
25
26static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
27{
28 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
29 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
30 struct snd_soc_card *card = rtd->card;
31 struct snd_soc_jack *dp_jack = NULL;
32 int dp_pcm_id = 0;
33
34 switch (cpu_dai->id) {
35 case PRIMARY_MI2S_RX...QUATERNARY_MI2S_TX:
36 case QUINARY_MI2S_RX...QUINARY_MI2S_TX:
37 snd_soc_dai_set_fmt(dai: cpu_dai, SND_SOC_DAIFMT_BP_FP);
38 break;
39 case WSA_CODEC_DMA_RX_0:
40 case WSA_CODEC_DMA_RX_1:
41 /*
42 * Set limit of -3 dB on Digital Volume and 0 dB on PA Volume
43 * to reduce the risk of speaker damage until we have active
44 * speaker protection in place.
45 */
46 snd_soc_limit_volume(card, name: "WSA_RX0 Digital Volume", max: 81);
47 snd_soc_limit_volume(card, name: "WSA_RX1 Digital Volume", max: 81);
48 snd_soc_limit_volume(card, name: "SpkrLeft PA Volume", max: 17);
49 snd_soc_limit_volume(card, name: "SpkrRight PA Volume", max: 17);
50 break;
51 case DISPLAY_PORT_RX_0:
52 /* DISPLAY_PORT dai ids are not contiguous */
53 dp_pcm_id = 0;
54 dp_jack = &data->dp_jack[dp_pcm_id];
55 break;
56 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7:
57 dp_pcm_id = cpu_dai->id - DISPLAY_PORT_RX_1 + 1;
58 dp_jack = &data->dp_jack[dp_pcm_id];
59 break;
60 default:
61 break;
62 }
63
64 if (dp_jack)
65 return qcom_snd_dp_jack_setup(rtd, dp_jack, id: dp_pcm_id);
66
67 return qcom_snd_wcd_jack_setup(rtd, jack: &data->jack, jack_setup: &data->jack_setup);
68}
69
70static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
71 struct snd_pcm_hw_params *params)
72{
73 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
74 struct snd_interval *rate = hw_param_interval(params,
75 SNDRV_PCM_HW_PARAM_RATE);
76 struct snd_interval *channels = hw_param_interval(params,
77 SNDRV_PCM_HW_PARAM_CHANNELS);
78 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
79
80 rate->min = rate->max = 48000;
81 snd_mask_set_format(mask: fmt, SNDRV_PCM_FORMAT_S16_LE);
82 channels->min = 2;
83 channels->max = 2;
84 switch (cpu_dai->id) {
85 case TX_CODEC_DMA_TX_0:
86 case TX_CODEC_DMA_TX_1:
87 case TX_CODEC_DMA_TX_2:
88 case TX_CODEC_DMA_TX_3:
89 channels->min = 1;
90 break;
91 default:
92 break;
93 }
94
95
96 return 0;
97}
98
99static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream)
100{
101 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
102 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
103 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
104
105 return qcom_snd_sdw_prepare(substream, stream_prepared: &data->stream_prepared[cpu_dai->id]);
106}
107
108static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream)
109{
110 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
111 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
112 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
113
114 return qcom_snd_sdw_hw_free(substream, stream_prepared: &data->stream_prepared[cpu_dai->id]);
115}
116
117static const struct snd_soc_ops sc8280xp_be_ops = {
118 .startup = qcom_snd_sdw_startup,
119 .shutdown = qcom_snd_sdw_shutdown,
120 .hw_free = sc8280xp_snd_hw_free,
121 .prepare = sc8280xp_snd_prepare,
122};
123
124static void sc8280xp_add_be_ops(struct snd_soc_card *card)
125{
126 struct snd_soc_dai_link *link;
127 int i;
128
129 for_each_card_prelinks(card, i, link) {
130 if (link->no_pcm == 1) {
131 link->init = sc8280xp_snd_init;
132 link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup;
133 link->ops = &sc8280xp_be_ops;
134 }
135 }
136}
137
138static int sc8280xp_platform_probe(struct platform_device *pdev)
139{
140 struct snd_soc_card *card;
141 struct sc8280xp_snd_data *data;
142 struct device *dev = &pdev->dev;
143 int ret;
144
145 card = devm_kzalloc(dev, size: sizeof(*card), GFP_KERNEL);
146 if (!card)
147 return -ENOMEM;
148 card->owner = THIS_MODULE;
149 /* Allocate the private data */
150 data = devm_kzalloc(dev, size: sizeof(*data), GFP_KERNEL);
151 if (!data)
152 return -ENOMEM;
153
154 card->dev = dev;
155 dev_set_drvdata(dev, data: card);
156 snd_soc_card_set_drvdata(card, data);
157 ret = qcom_snd_parse_of(card);
158 if (ret)
159 return ret;
160
161 card->driver_name = of_device_get_match_data(dev);
162 sc8280xp_add_be_ops(card);
163 return devm_snd_soc_register_card(dev, card);
164}
165
166static const struct of_device_id snd_sc8280xp_dt_match[] = {
167 {.compatible = "qcom,kaanapali-sndcard", "kaanapali"},
168 {.compatible = "qcom,qcm6490-idp-sndcard", "qcm6490"},
169 {.compatible = "qcom,qcs615-sndcard", "qcs615"},
170 {.compatible = "qcom,qcs6490-rb3gen2-sndcard", "qcs6490"},
171 {.compatible = "qcom,qcs8275-sndcard", "qcs8300"},
172 {.compatible = "qcom,qcs9075-sndcard", "sa8775p"},
173 {.compatible = "qcom,qcs9100-sndcard", "sa8775p"},
174 {.compatible = "qcom,sc8280xp-sndcard", "sc8280xp"},
175 {.compatible = "qcom,sm8450-sndcard", "sm8450"},
176 {.compatible = "qcom,sm8550-sndcard", "sm8550"},
177 {.compatible = "qcom,sm8650-sndcard", "sm8650"},
178 {.compatible = "qcom,sm8750-sndcard", "sm8750"},
179 {}
180};
181
182MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match);
183
184static struct platform_driver snd_sc8280xp_driver = {
185 .probe = sc8280xp_platform_probe,
186 .driver = {
187 .name = "snd-sc8280xp",
188 .of_match_table = snd_sc8280xp_dt_match,
189 },
190};
191module_platform_driver(snd_sc8280xp_driver);
192MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
193MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver");
194MODULE_LICENSE("GPL");
195

source code of linux/sound/soc/qcom/sc8280xp.c