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 "qdsp6/q6dsp-common.h"
16 #include "sdw.h"
17
18 struct x1e80100_snd_data {
19 bool stream_prepared[AFE_PORT_MAX];
20 struct snd_soc_card *card;
21 struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
22 struct snd_soc_jack jack;
23 struct snd_soc_jack dp_jack[8];
24 bool jack_setup;
25 };
26
27 static int x1e80100_snd_init(struct snd_soc_pcm_runtime *rtd)
28 {
29 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
30 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
31 struct snd_soc_jack *dp_jack = NULL;
32 int dp_pcm_id = 0;
33
34 switch (cpu_dai->id) {
35 case DISPLAY_PORT_RX_0:
36 dp_pcm_id = 0;
37 dp_jack = &data->dp_jack[dp_pcm_id];
38 break;
39 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7:
40 dp_pcm_id = cpu_dai->id - DISPLAY_PORT_RX_1 + 1;
41 dp_jack = &data->dp_jack[dp_pcm_id];
42 break;
43 default:
44 break;
45 }
46
47 if (dp_jack)
48 return qcom_snd_dp_jack_setup(rtd, dp_jack, dp_pcm_id);
49
50 return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
51 }
52
53 static void x1e80100_snd_shutdown(struct snd_pcm_substream *substream)
54 {
55 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
56 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
57 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
58 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
59
60 data->sruntime[cpu_dai->id] = NULL;
61 sdw_release_stream(sruntime);
62 }
63
64 static int x1e80100_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
65 struct snd_pcm_hw_params *params)
66 {
67 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
68 struct snd_interval *rate = hw_param_interval(params,
69 SNDRV_PCM_HW_PARAM_RATE);
70 struct snd_interval *channels = hw_param_interval(params,
71 SNDRV_PCM_HW_PARAM_CHANNELS);
72
73 rate->min = rate->max = 48000;
74 switch (cpu_dai->id) {
75 case TX_CODEC_DMA_TX_0:
76 case TX_CODEC_DMA_TX_1:
77 case TX_CODEC_DMA_TX_2:
78 case TX_CODEC_DMA_TX_3:
79 channels->min = 1;
80 break;
81 default:
82 break;
83 }
84
85 return 0;
86 }
87
88 static int x1e80100_snd_hw_params(struct snd_pcm_substream *substream,
89 struct snd_pcm_hw_params *params)
90 {
91 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
92 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
93 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
94
95 return qcom_snd_sdw_hw_params(substream, params, &data->sruntime[cpu_dai->id]);
96 }
97
98 static int x1e80100_snd_prepare(struct snd_pcm_substream *substream)
99 {
100 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
101 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
102 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
103 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
104 const unsigned int rx_slot[4] = { PCM_CHANNEL_FL,
105 PCM_CHANNEL_LB,
106 PCM_CHANNEL_FR,
107 PCM_CHANNEL_RB };
108 int ret;
109
110 switch (cpu_dai->id) {
111 case WSA_CODEC_DMA_RX_0:
112 case WSA_CODEC_DMA_RX_1:
113 ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
114 ARRAY_SIZE(rx_slot), rx_slot);
115 if (ret)
116 return ret;
117 break;
118 default:
119 break;
120 }
121
122 return qcom_snd_sdw_prepare(substream, sruntime,
123 &data->stream_prepared[cpu_dai->id]);
124 }
125
126 static int x1e80100_snd_hw_free(struct snd_pcm_substream *substream)
127 {
128 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
129 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
130 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
131 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
132
133 return qcom_snd_sdw_hw_free(substream, sruntime,
134 &data->stream_prepared[cpu_dai->id]);
135 }
136
137 static const struct snd_soc_ops x1e80100_be_ops = {
138 .startup = qcom_snd_sdw_startup,
139 .shutdown = x1e80100_snd_shutdown,
140 .hw_params = x1e80100_snd_hw_params,
141 .hw_free = x1e80100_snd_hw_free,
142 .prepare = x1e80100_snd_prepare,
143 };
144
145 static void x1e80100_add_be_ops(struct snd_soc_card *card)
146 {
147 struct snd_soc_dai_link *link;
148 int i;
149
150 for_each_card_prelinks(card, i, link) {
151 if (link->no_pcm == 1) {
152 link->init = x1e80100_snd_init;
153 link->be_hw_params_fixup = x1e80100_be_hw_params_fixup;
154 link->ops = &x1e80100_be_ops;
155 }
156 }
157 }
158
159 static int x1e80100_platform_probe(struct platform_device *pdev)
160 {
161 struct snd_soc_card *card;
162 struct x1e80100_snd_data *data;
163 struct device *dev = &pdev->dev;
164 int ret;
165
166 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
167 if (!card)
168 return -ENOMEM;
169 /* Allocate the private data */
170 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
171 if (!data)
172 return -ENOMEM;
173
174 card->owner = THIS_MODULE;
175 card->dev = dev;
176 dev_set_drvdata(dev, card);
177 snd_soc_card_set_drvdata(card, data);
178
179 ret = qcom_snd_parse_of(card);
180 if (ret)
181 return ret;
182
183 card->driver_name = "x1e80100";
184 x1e80100_add_be_ops(card);
185
186 return devm_snd_soc_register_card(dev, card);
187 }
188
189 static const struct of_device_id snd_x1e80100_dt_match[] = {
190 { .compatible = "qcom,x1e80100-sndcard", },
191 {}
192 };
193 MODULE_DEVICE_TABLE(of, snd_x1e80100_dt_match);
194
195 static struct platform_driver snd_x1e80100_driver = {
196 .probe = x1e80100_platform_probe,
197 .driver = {
198 .name = "snd-x1e80100",
199 .of_match_table = snd_x1e80100_dt_match,
200 },
201 };
202 module_platform_driver(snd_x1e80100_driver);
203 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
204 MODULE_AUTHOR("Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>");
205 MODULE_DESCRIPTION("Qualcomm X1E80100 ASoC Machine Driver");
206 MODULE_LICENSE("GPL");
207
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