1
2
3
4
5
6
7
8
9
10
11
12
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
80SND_SOC_DAILINK_DEFS(single_dsp,
81 DAILINK_COMP_ARRAY(COMP_EMPTY()),
82 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")),
83 DAILINK_COMP_ARRAY(COMP_EMPTY()));
84
85static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
86 .name = "TLV320AIC23",
87 .stream_name = "AIC23",
88 .ops = &trimslice_asoc_ops,
89 .dai_fmt = SND_SOC_DAIFMT_I2S |
90 SND_SOC_DAIFMT_NB_NF |
91 SND_SOC_DAIFMT_CBS_CFS,
92 SND_SOC_DAILINK_REG(single_dsp),
93};
94
95static struct snd_soc_card snd_soc_trimslice = {
96 .name = "tegra-trimslice",
97 .owner = THIS_MODULE,
98 .dai_link = &trimslice_tlv320aic23_dai,
99 .num_links = 1,
100
101 .dapm_widgets = trimslice_dapm_widgets,
102 .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
103 .dapm_routes = trimslice_audio_map,
104 .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
105 .fully_routed = true,
106};
107
108static int tegra_snd_trimslice_probe(struct platform_device *pdev)
109{
110 struct device_node *np = pdev->dev.of_node;
111 struct snd_soc_card *card = &snd_soc_trimslice;
112 struct tegra_trimslice *trimslice;
113 int ret;
114
115 trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
116 GFP_KERNEL);
117 if (!trimslice)
118 return -ENOMEM;
119
120 card->dev = &pdev->dev;
121 snd_soc_card_set_drvdata(card, trimslice);
122
123 trimslice_tlv320aic23_dai.codecs->of_node = of_parse_phandle(np,
124 "nvidia,audio-codec", 0);
125 if (!trimslice_tlv320aic23_dai.codecs->of_node) {
126 dev_err(&pdev->dev,
127 "Property 'nvidia,audio-codec' missing or invalid\n");
128 ret = -EINVAL;
129 goto err;
130 }
131
132 trimslice_tlv320aic23_dai.cpus->of_node = of_parse_phandle(np,
133 "nvidia,i2s-controller", 0);
134 if (!trimslice_tlv320aic23_dai.cpus->of_node) {
135 dev_err(&pdev->dev,
136 "Property 'nvidia,i2s-controller' missing or invalid\n");
137 ret = -EINVAL;
138 goto err;
139 }
140
141 trimslice_tlv320aic23_dai.platforms->of_node =
142 trimslice_tlv320aic23_dai.cpus->of_node;
143
144 ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
145 if (ret)
146 goto err;
147
148 ret = snd_soc_register_card(card);
149 if (ret) {
150 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
151 ret);
152 goto err_fini_utils;
153 }
154
155 return 0;
156
157err_fini_utils:
158 tegra_asoc_utils_fini(&trimslice->util_data);
159err:
160 return ret;
161}
162
163static int tegra_snd_trimslice_remove(struct platform_device *pdev)
164{
165 struct snd_soc_card *card = platform_get_drvdata(pdev);
166 struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
167
168 snd_soc_unregister_card(card);
169
170 tegra_asoc_utils_fini(&trimslice->util_data);
171
172 return 0;
173}
174
175static const struct of_device_id trimslice_of_match[] = {
176 { .compatible = "nvidia,tegra-audio-trimslice", },
177 {},
178};
179MODULE_DEVICE_TABLE(of, trimslice_of_match);
180
181static struct platform_driver tegra_snd_trimslice_driver = {
182 .driver = {
183 .name = DRV_NAME,
184 .of_match_table = trimslice_of_match,
185 },
186 .probe = tegra_snd_trimslice_probe,
187 .remove = tegra_snd_trimslice_remove,
188};
189module_platform_driver(tegra_snd_trimslice_driver);
190
191MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
192MODULE_DESCRIPTION("Trimslice machine ASoC driver");
193MODULE_LICENSE("GPL");
194MODULE_ALIAS("platform:" DRV_NAME);
195
