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5
6#include <linux/module.h>
7#include <linux/device.h>
8#include <linux/of.h>
9#include <linux/of_device.h>
10#include <sound/core.h>
11#include <sound/pcm.h>
12#include <sound/soc.h>
13#include <sound/jack.h>
14#include <sound/soc-dapm.h>
15
16#include "../codecs/sgtl5000.h"
17#include "mxs-saif.h"
18
19static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream,
20 struct snd_pcm_hw_params *params)
21{
22 struct snd_soc_pcm_runtime *rtd = substream->private_data;
23 struct snd_soc_dai *codec_dai = rtd->codec_dai;
24 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
25 unsigned int rate = params_rate(params);
26 u32 mclk;
27 int ret;
28
29
30 switch (rate) {
31 case 96000:
32 mclk = 256 * rate;
33 break;
34 default:
35 mclk = 512 * rate;
36 break;
37 }
38
39
40 ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0);
41 if (ret) {
42 dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n",
43 mclk / 1000000, mclk / 1000 % 1000);
44 return ret;
45 }
46
47
48 ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0);
49 if (ret) {
50 dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n",
51 mclk / 1000000, mclk / 1000 % 1000);
52 return ret;
53 }
54
55 return 0;
56}
57
58static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = {
59 .hw_params = mxs_sgtl5000_hw_params,
60};
61
62#define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
63 SND_SOC_DAIFMT_CBS_CFS)
64
65static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
66 {
67 .name = "HiFi Tx",
68 .stream_name = "HiFi Playback",
69 .codec_dai_name = "sgtl5000",
70 .dai_fmt = MXS_SGTL5000_DAI_FMT,
71 .ops = &mxs_sgtl5000_hifi_ops,
72 .playback_only = true,
73 }, {
74 .name = "HiFi Rx",
75 .stream_name = "HiFi Capture",
76 .codec_dai_name = "sgtl5000",
77 .dai_fmt = MXS_SGTL5000_DAI_FMT,
78 .ops = &mxs_sgtl5000_hifi_ops,
79 .capture_only = true,
80 },
81};
82
83static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = {
84 SND_SOC_DAPM_MIC("Mic Jack", NULL),
85 SND_SOC_DAPM_LINE("Line In Jack", NULL),
86 SND_SOC_DAPM_HP("Headphone Jack", NULL),
87 SND_SOC_DAPM_SPK("Line Out Jack", NULL),
88 SND_SOC_DAPM_SPK("Ext Spk", NULL),
89};
90
91static struct snd_soc_card mxs_sgtl5000 = {
92 .name = "mxs_sgtl5000",
93 .owner = THIS_MODULE,
94 .dai_link = mxs_sgtl5000_dai,
95 .num_links = ARRAY_SIZE(mxs_sgtl5000_dai),
96};
97
98static int mxs_sgtl5000_probe(struct platform_device *pdev)
99{
100 struct snd_soc_card *card = &mxs_sgtl5000;
101 int ret, i;
102 struct device_node *np = pdev->dev.of_node;
103 struct device_node *saif_np[2], *codec_np;
104
105 saif_np[0] = of_parse_phandle(np, "saif-controllers", 0);
106 saif_np[1] = of_parse_phandle(np, "saif-controllers", 1);
107 codec_np = of_parse_phandle(np, "audio-codec", 0);
108 if (!saif_np[0] || !saif_np[1] || !codec_np) {
109 dev_err(&pdev->dev, "phandle missing or invalid\n");
110 return -EINVAL;
111 }
112
113 for (i = 0; i < 2; i++) {
114 mxs_sgtl5000_dai[i].codec_name = NULL;
115 mxs_sgtl5000_dai[i].codec_of_node = codec_np;
116 mxs_sgtl5000_dai[i].cpu_dai_name = NULL;
117 mxs_sgtl5000_dai[i].cpu_of_node = saif_np[i];
118 mxs_sgtl5000_dai[i].platform_name = NULL;
119 mxs_sgtl5000_dai[i].platform_of_node = saif_np[i];
120 }
121
122 of_node_put(codec_np);
123 of_node_put(saif_np[0]);
124 of_node_put(saif_np[1]);
125
126
127
128
129
130
131 ret = mxs_saif_get_mclk(0, 44100 * 256, 44100);
132 if (ret) {
133 dev_err(&pdev->dev, "failed to get mclk\n");
134 return ret;
135 }
136
137 card->dev = &pdev->dev;
138
139 if (of_find_property(np, "audio-routing", NULL)) {
140 card->dapm_widgets = mxs_sgtl5000_dapm_widgets;
141 card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets);
142
143 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
144 if (ret) {
145 dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n",
146 ret);
147 return ret;
148 }
149 }
150
151 ret = devm_snd_soc_register_card(&pdev->dev, card);
152 if (ret) {
153 if (ret != -EPROBE_DEFER)
154 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
155 ret);
156 return ret;
157 }
158
159 return 0;
160}
161
162static int mxs_sgtl5000_remove(struct platform_device *pdev)
163{
164 mxs_saif_put_mclk(0);
165
166 return 0;
167}
168
169static const struct of_device_id mxs_sgtl5000_dt_ids[] = {
170 { .compatible = "fsl,mxs-audio-sgtl5000", },
171 { }
172};
173MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids);
174
175static struct platform_driver mxs_sgtl5000_audio_driver = {
176 .driver = {
177 .name = "mxs-sgtl5000",
178 .of_match_table = mxs_sgtl5000_dt_ids,
179 },
180 .probe = mxs_sgtl5000_probe,
181 .remove = mxs_sgtl5000_remove,
182};
183
184module_platform_driver(mxs_sgtl5000_audio_driver);
185
186MODULE_AUTHOR("Freescale Semiconductor, Inc.");
187MODULE_DESCRIPTION("MXS ALSA SoC Machine driver");
188MODULE_LICENSE("GPL");
189MODULE_ALIAS("platform:mxs-sgtl5000");
190
