1
2
3
4
5
6
7#include <linux/module.h>
8#include <linux/of_device.h>
9#include <linux/platform_device.h>
10#include <linux/clk.h>
11
12#include <sound/soc.h>
13#include <sound/soc-dapm.h>
14#include <sound/pcm.h>
15#include <sound/pcm_params.h>
16
17#include "../codecs/wm8994.h"
18#include "i2s.h"
19
20static int arndale_rt5631_hw_params(struct snd_pcm_substream *substream,
21 struct snd_pcm_hw_params *params)
22{
23 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
24 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
25 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
26 int rfs, ret;
27 unsigned long rclk;
28
29 rfs = 256;
30
31 rclk = params_rate(params) * rfs;
32
33 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
34 0, SND_SOC_CLOCK_OUT);
35 if (ret < 0)
36 return ret;
37
38 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
39 0, SND_SOC_CLOCK_OUT);
40
41 if (ret < 0)
42 return ret;
43
44 ret = snd_soc_dai_set_sysclk(codec_dai, 0, rclk, SND_SOC_CLOCK_OUT);
45 if (ret < 0)
46 return ret;
47
48 return 0;
49}
50
51static struct snd_soc_ops arndale_rt5631_ops = {
52 .hw_params = arndale_rt5631_hw_params,
53};
54
55static int arndale_wm1811_hw_params(struct snd_pcm_substream *substream,
56 struct snd_pcm_hw_params *params)
57{
58 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
59 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
60 unsigned int rfs, rclk;
61
62
63 if (params_width(params) == 24)
64 rfs = 384;
65 else if (params_rate(params) == 8000 || params_rate(params) == 11025)
66 rfs = 512;
67 else
68 rfs = 256;
69
70 rclk = params_rate(params) * rfs;
71
72
73
74
75
76
77
78
79 return snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1,
80 rclk + 1, SND_SOC_CLOCK_IN);
81}
82
83static struct snd_soc_ops arndale_wm1811_ops = {
84 .hw_params = arndale_wm1811_hw_params,
85};
86
87SND_SOC_DAILINK_DEFS(rt5631_hifi,
88 DAILINK_COMP_ARRAY(COMP_EMPTY()),
89 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5631-aif1")),
90 DAILINK_COMP_ARRAY(COMP_EMPTY()));
91
92static struct snd_soc_dai_link arndale_rt5631_dai[] = {
93 {
94 .name = "RT5631 HiFi",
95 .stream_name = "Primary",
96 .dai_fmt = SND_SOC_DAIFMT_I2S
97 | SND_SOC_DAIFMT_NB_NF
98 | SND_SOC_DAIFMT_CBS_CFS,
99 .ops = &arndale_rt5631_ops,
100 SND_SOC_DAILINK_REG(rt5631_hifi),
101 },
102};
103
104SND_SOC_DAILINK_DEFS(wm1811_hifi,
105 DAILINK_COMP_ARRAY(COMP_EMPTY()),
106 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif1")),
107 DAILINK_COMP_ARRAY(COMP_EMPTY()));
108
109static struct snd_soc_dai_link arndale_wm1811_dai[] = {
110 {
111 .name = "WM1811 HiFi",
112 .stream_name = "Primary",
113 .dai_fmt = SND_SOC_DAIFMT_I2S
114 | SND_SOC_DAIFMT_NB_NF
115 | SND_SOC_DAIFMT_CBM_CFM,
116 .ops = &arndale_wm1811_ops,
117 SND_SOC_DAILINK_REG(wm1811_hifi),
118 },
119};
120
121static struct snd_soc_card arndale_rt5631 = {
122 .name = "Arndale RT5631",
123 .owner = THIS_MODULE,
124 .dai_link = arndale_rt5631_dai,
125 .num_links = ARRAY_SIZE(arndale_rt5631_dai),
126};
127
128static struct snd_soc_card arndale_wm1811 = {
129 .name = "Arndale WM1811",
130 .owner = THIS_MODULE,
131 .dai_link = arndale_wm1811_dai,
132 .num_links = ARRAY_SIZE(arndale_wm1811_dai),
133};
134
135static void arndale_put_of_nodes(struct snd_soc_card *card)
136{
137 struct snd_soc_dai_link *dai_link;
138 int i;
139
140 for_each_card_prelinks(card, i, dai_link) {
141 of_node_put(dai_link->cpus->of_node);
142 of_node_put(dai_link->codecs->of_node);
143 }
144}
145
146static int arndale_audio_probe(struct platform_device *pdev)
147{
148 struct device_node *np = pdev->dev.of_node;
149 struct snd_soc_card *card;
150 struct snd_soc_dai_link *dai_link;
151 int ret;
152
153 card = (struct snd_soc_card *)of_device_get_match_data(&pdev->dev);
154 card->dev = &pdev->dev;
155 dai_link = card->dai_link;
156
157 dai_link->cpus->of_node = of_parse_phandle(np, "samsung,audio-cpu", 0);
158 if (!dai_link->cpus->of_node) {
159 dev_err(&pdev->dev,
160 "Property 'samsung,audio-cpu' missing or invalid\n");
161 return -EINVAL;
162 }
163
164 if (!dai_link->platforms->name)
165 dai_link->platforms->of_node = dai_link->cpus->of_node;
166
167 dai_link->codecs->of_node = of_parse_phandle(np, "samsung,audio-codec", 0);
168 if (!dai_link->codecs->of_node) {
169 dev_err(&pdev->dev,
170 "Property 'samsung,audio-codec' missing or invalid\n");
171 ret = -EINVAL;
172 goto err_put_of_nodes;
173 }
174
175 ret = devm_snd_soc_register_card(card->dev, card);
176 if (ret) {
177 if (ret != -EPROBE_DEFER)
178 dev_err(&pdev->dev,
179 "snd_soc_register_card() failed: %d\n", ret);
180 goto err_put_of_nodes;
181 }
182 return 0;
183
184err_put_of_nodes:
185 arndale_put_of_nodes(card);
186 return ret;
187}
188
189static int arndale_audio_remove(struct platform_device *pdev)
190{
191 struct snd_soc_card *card = platform_get_drvdata(pdev);
192
193 arndale_put_of_nodes(card);
194 return 0;
195}
196
197static const struct of_device_id arndale_audio_of_match[] = {
198 { .compatible = "samsung,arndale-rt5631", .data = &arndale_rt5631 },
199 { .compatible = "samsung,arndale-alc5631", .data = &arndale_rt5631 },
200 { .compatible = "samsung,arndale-wm1811", .data = &arndale_wm1811 },
201 {},
202};
203MODULE_DEVICE_TABLE(of, arndale_audio_of_match);
204
205static struct platform_driver arndale_audio_driver = {
206 .driver = {
207 .name = "arndale-audio",
208 .pm = &snd_soc_pm_ops,
209 .of_match_table = arndale_audio_of_match,
210 },
211 .probe = arndale_audio_probe,
212 .remove = arndale_audio_remove,
213};
214
215module_platform_driver(arndale_audio_driver);
216
217MODULE_AUTHOR("Claude <claude@insignal.co.kr>");
218MODULE_DESCRIPTION("ALSA SoC Driver for Arndale Board");
219MODULE_LICENSE("GPL");
220
