1
2
3
4
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
65
66SND_SOC_DAILINK_DEFS(hifi_tx,
67 DAILINK_COMP_ARRAY(COMP_EMPTY()),
68 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")),
69 DAILINK_COMP_ARRAY(COMP_EMPTY()));
70
71SND_SOC_DAILINK_DEFS(hifi_rx,
72 DAILINK_COMP_ARRAY(COMP_EMPTY()),
73 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")),
74 DAILINK_COMP_ARRAY(COMP_EMPTY()));
75
76static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
77 {
78 .name = "HiFi Tx",
79 .stream_name = "HiFi Playback",
80 .dai_fmt = MXS_SGTL5000_DAI_FMT,
81 .ops = &mxs_sgtl5000_hifi_ops,
82 .playback_only = true,
83 SND_SOC_DAILINK_REG(hifi_tx),
84 }, {
85 .name = "HiFi Rx",
86 .stream_name = "HiFi Capture",
87 .dai_fmt = MXS_SGTL5000_DAI_FMT,
88 .ops = &mxs_sgtl5000_hifi_ops,
89 .capture_only = true,
90 SND_SOC_DAILINK_REG(hifi_rx),
91 },
92};
93
94static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = {
95 SND_SOC_DAPM_MIC("Mic Jack", NULL),
96 SND_SOC_DAPM_LINE("Line In Jack", NULL),
97 SND_SOC_DAPM_HP("Headphone Jack", NULL),
98 SND_SOC_DAPM_SPK("Line Out Jack", NULL),
99 SND_SOC_DAPM_SPK("Ext Spk", NULL),
100};
101
102static struct snd_soc_card mxs_sgtl5000 = {
103 .name = "mxs_sgtl5000",
104 .owner = THIS_MODULE,
105 .dai_link = mxs_sgtl5000_dai,
106 .num_links = ARRAY_SIZE(mxs_sgtl5000_dai),
107};
108
109static int mxs_sgtl5000_probe(struct platform_device *pdev)
110{
111 struct snd_soc_card *card = &mxs_sgtl5000;
112 int ret, i;
113 struct device_node *np = pdev->dev.of_node;
114 struct device_node *saif_np[2], *codec_np;
115
116 saif_np[0] = of_parse_phandle(np, "saif-controllers", 0);
117 saif_np[1] = of_parse_phandle(np, "saif-controllers", 1);
118 codec_np = of_parse_phandle(np, "audio-codec", 0);
119 if (!saif_np[0] || !saif_np[1] || !codec_np) {
120 dev_err(&pdev->dev, "phandle missing or invalid\n");
121 return -EINVAL;
122 }
123
124 for (i = 0; i < 2; i++) {
125 mxs_sgtl5000_dai[i].codecs->name = NULL;
126 mxs_sgtl5000_dai[i].codecs->of_node = codec_np;
127 mxs_sgtl5000_dai[i].cpus->dai_name = NULL;
128 mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i];
129 mxs_sgtl5000_dai[i].platforms->name = NULL;
130 mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i];
131 }
132
133 of_node_put(codec_np);
134 of_node_put(saif_np[0]);
135 of_node_put(saif_np[1]);
136
137
138
139
140
141
142 ret = mxs_saif_get_mclk(0, 44100 * 256, 44100);
143 if (ret) {
144 dev_err(&pdev->dev, "failed to get mclk\n");
145 return ret;
146 }
147
148 card->dev = &pdev->dev;
149
150 if (of_find_property(np, "audio-routing", NULL)) {
151 card->dapm_widgets = mxs_sgtl5000_dapm_widgets;
152 card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets);
153
154 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
155 if (ret) {
156 dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n",
157 ret);
158 return ret;
159 }
160 }
161
162 ret = devm_snd_soc_register_card(&pdev->dev, card);
163 if (ret) {
164 if (ret != -EPROBE_DEFER)
165 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
166 ret);
167 return ret;
168 }
169
170 return 0;
171}
172
173static int mxs_sgtl5000_remove(struct platform_device *pdev)
174{
175 mxs_saif_put_mclk(0);
176
177 return 0;
178}
179
180static const struct of_device_id mxs_sgtl5000_dt_ids[] = {
181 { .compatible = "fsl,mxs-audio-sgtl5000", },
182 { }
183};
184MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids);
185
186static struct platform_driver mxs_sgtl5000_audio_driver = {
187 .driver = {
188 .name = "mxs-sgtl5000",
189 .of_match_table = mxs_sgtl5000_dt_ids,
190 },
191 .probe = mxs_sgtl5000_probe,
192 .remove = mxs_sgtl5000_remove,
193};
194
195module_platform_driver(mxs_sgtl5000_audio_driver);
196
197MODULE_AUTHOR("Freescale Semiconductor, Inc.");
198MODULE_DESCRIPTION("MXS ALSA SoC Machine driver");
199MODULE_LICENSE("GPL");
200MODULE_ALIAS("platform:mxs-sgtl5000");
201
