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13#include <linux/module.h>
14#include <linux/of.h>
15#include <linux/platform_device.h>
16#include <linux/slab.h>
17
18#include <sound/core.h>
19#include <sound/jack.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23
24#include "../codecs/tlv320aic23.h"
25
26#include "tegra_asoc_utils.h"
27
28#define DRV_NAME "tegra-snd-trimslice"
29
30struct tegra_trimslice {
31 struct tegra_asoc_utils_data util_data;
32};
33
34static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream,
35 struct snd_pcm_hw_params *params)
36{
37 struct snd_soc_pcm_runtime *rtd = substream->private_data;
38 struct snd_soc_dai *codec_dai = rtd->codec_dai;
39 struct snd_soc_card *card = rtd->card;
40 struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
41 int srate, mclk;
42 int err;
43
44 srate = params_rate(params);
45 mclk = 128 * srate;
46
47 err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
48 if (err < 0) {
49 dev_err(card->dev, "Can't configure clocks\n");
50 return err;
51 }
52
53 err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
54 SND_SOC_CLOCK_IN);
55 if (err < 0) {
56 dev_err(card->dev, "codec_dai clock not set\n");
57 return err;
58 }
59
60 return 0;
61}
62
63static const struct snd_soc_ops trimslice_asoc_ops = {
64 .hw_params = trimslice_asoc_hw_params,
65};
66
67static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
68 SND_SOC_DAPM_HP("Line Out", NULL),
69 SND_SOC_DAPM_LINE("Line In", NULL),
70};
71
72static const struct snd_soc_dapm_route trimslice_audio_map[] = {
73 {"Line Out", NULL, "LOUT"},
74 {"Line Out", NULL, "ROUT"},
75
76 {"LLINEIN", NULL, "Line In"},
77 {"RLINEIN", NULL, "Line In"},
78};
79
80static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
81 .name = "TLV320AIC23",
82 .stream_name = "AIC23",
83 .codec_dai_name = "tlv320aic23-hifi",
84 .ops = &trimslice_asoc_ops,
85 .dai_fmt = SND_SOC_DAIFMT_I2S |
86 SND_SOC_DAIFMT_NB_NF |
87 SND_SOC_DAIFMT_CBS_CFS,
88};
89
90static struct snd_soc_card snd_soc_trimslice = {
91 .name = "tegra-trimslice",
92 .owner = THIS_MODULE,
93 .dai_link = &trimslice_tlv320aic23_dai,
94 .num_links = 1,
95
96 .dapm_widgets = trimslice_dapm_widgets,
97 .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
98 .dapm_routes = trimslice_audio_map,
99 .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
100 .fully_routed = true,
101};
102
103static int tegra_snd_trimslice_probe(struct platform_device *pdev)
104{
105 struct device_node *np = pdev->dev.of_node;
106 struct snd_soc_card *card = &snd_soc_trimslice;
107 struct tegra_trimslice *trimslice;
108 int ret;
109
110 trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
111 GFP_KERNEL);
112 if (!trimslice)
113 return -ENOMEM;
114
115 card->dev = &pdev->dev;
116 snd_soc_card_set_drvdata(card, trimslice);
117
118 trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np,
119 "nvidia,audio-codec", 0);
120 if (!trimslice_tlv320aic23_dai.codec_of_node) {
121 dev_err(&pdev->dev,
122 "Property 'nvidia,audio-codec' missing or invalid\n");
123 ret = -EINVAL;
124 goto err;
125 }
126
127 trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np,
128 "nvidia,i2s-controller", 0);
129 if (!trimslice_tlv320aic23_dai.cpu_of_node) {
130 dev_err(&pdev->dev,
131 "Property 'nvidia,i2s-controller' missing or invalid\n");
132 ret = -EINVAL;
133 goto err;
134 }
135
136 trimslice_tlv320aic23_dai.platform_of_node =
137 trimslice_tlv320aic23_dai.cpu_of_node;
138
139 ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
140 if (ret)
141 goto err;
142
143 ret = snd_soc_register_card(card);
144 if (ret) {
145 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
146 ret);
147 goto err_fini_utils;
148 }
149
150 return 0;
151
152err_fini_utils:
153 tegra_asoc_utils_fini(&trimslice->util_data);
154err:
155 return ret;
156}
157
158static int tegra_snd_trimslice_remove(struct platform_device *pdev)
159{
160 struct snd_soc_card *card = platform_get_drvdata(pdev);
161 struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
162
163 snd_soc_unregister_card(card);
164
165 tegra_asoc_utils_fini(&trimslice->util_data);
166
167 return 0;
168}
169
170static const struct of_device_id trimslice_of_match[] = {
171 { .compatible = "nvidia,tegra-audio-trimslice", },
172 {},
173};
174MODULE_DEVICE_TABLE(of, trimslice_of_match);
175
176static struct platform_driver tegra_snd_trimslice_driver = {
177 .driver = {
178 .name = DRV_NAME,
179 .of_match_table = trimslice_of_match,
180 },
181 .probe = tegra_snd_trimslice_probe,
182 .remove = tegra_snd_trimslice_remove,
183};
184module_platform_driver(tegra_snd_trimslice_driver);
185
186MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
187MODULE_DESCRIPTION("Trimslice machine ASoC driver");
188MODULE_LICENSE("GPL");
189MODULE_ALIAS("platform:" DRV_NAME);
190
