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 | |
17 | struct 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 | |
25 | static 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 | |
32 | static 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 | |
43 | static 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 | |
67 | static 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 | |
77 | static 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 | |
88 | static 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 | |
99 | static 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 | |
107 | static 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 | |
121 | static 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 | |
151 | static const struct of_device_id snd_x1e80100_dt_match[] = { |
152 | { .compatible = "qcom,x1e80100-sndcard" , }, |
153 | {} |
154 | }; |
155 | MODULE_DEVICE_TABLE(of, snd_x1e80100_dt_match); |
156 | |
157 | static 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 | }; |
164 | module_platform_driver(snd_x1e80100_driver); |
165 | MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org" ); |
166 | MODULE_AUTHOR("Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>" ); |
167 | MODULE_DESCRIPTION("Qualcomm X1E80100 ASoC Machine Driver" ); |
168 | MODULE_LICENSE("GPL" ); |
169 | |