1 /*
2 * rockchip_rt5651.c -- RK3399 machine driver with RT5651 codecs
3 *
4 * Copyright (c) 2016, ROCKCHIP CORPORATION. All rights reserved.
5 * Author: Xiaotan Luo <lxt@rock-chips.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 and
9 * only version 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17 #include <linux/module.h>
18 #include <sound/soc.h>
19
20 #include "rockchip_i2s.h"
21 #include "../codecs/rt5651.h"
22
23 #define DRV_NAME "rockchip-rt5651"
24
25 static const struct snd_soc_dapm_widget rockchip_dapm_widgets[] = {
26 SND_SOC_DAPM_HP("Headphones", NULL),
27 SND_SOC_DAPM_SPK("Lineout", NULL),
28 SND_SOC_DAPM_MIC("Headset Mic", NULL),
29 SND_SOC_DAPM_MIC("Int Mic", NULL),
30 SND_SOC_DAPM_MIC("HDMIIN", NULL),
31 };
32
33 static const struct snd_soc_dapm_route rockchip_dapm_routes[] = {
34 {"Headphones", NULL, "HPOL"},
35 {"Headphones", NULL, "HPOR"},
36 {"Lineout", NULL, "LOUTL"},
37 {"Lineout", NULL, "LOUTR"},
38 {"AIF2 Playback", NULL, "HDMIIN"},
39 };
40
41 static const struct snd_kcontrol_new rockchip_controls[] = {
42 SOC_DAPM_PIN_SWITCH("Headphones"),
43 SOC_DAPM_PIN_SWITCH("Lineout"),
44 SOC_DAPM_PIN_SWITCH("Headset Mic"),
45 SOC_DAPM_PIN_SWITCH("Int Mic"),
46 };
47
rockchip_rt5651_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)48 static int rockchip_rt5651_hw_params(struct snd_pcm_substream *substream,
49 struct snd_pcm_hw_params *params)
50 {
51 struct snd_soc_pcm_runtime *rtd = substream->private_data;
52 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
53 struct snd_soc_dai *codec_dai = rtd->codec_dai;
54 int mclk, ret;
55
56 /* in bypass mode, the mclk has to be one of the frequencies below */
57 switch (params_rate(params)) {
58 case 8000:
59 case 16000:
60 case 24000:
61 case 32000:
62 case 48000:
63 case 64000:
64 case 96000:
65 mclk = 12288000;
66 break;
67 case 11025:
68 case 22050:
69 case 44100:
70 case 88200:
71 mclk = 11289600;
72 break;
73 default:
74 return -EINVAL;
75 }
76
77 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, SND_SOC_CLOCK_OUT);
78 if (ret < 0) {
79 dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret);
80 return ret;
81 }
82
83 snd_soc_dai_set_pll(codec_dai, 0, RT5651_PLL1_S_MCLK, mclk, mclk * 2);
84
85 ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, mclk * 2,
86 SND_SOC_CLOCK_IN);
87 if (ret < 0) {
88 dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret);
89 return ret;
90 }
91
92 return 0;
93 }
94
rockchip_rt5651_voice_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)95 static int rockchip_rt5651_voice_hw_params(struct snd_pcm_substream *substream,
96 struct snd_pcm_hw_params *params)
97 {
98 struct snd_soc_pcm_runtime *rtd = substream->private_data;
99 struct snd_soc_dai *codec_dai = rtd->codec_dai;
100 int mclk, ret;
101
102 /* in bypass mode, the mclk has to be one of the frequencies below */
103 switch (params_rate(params)) {
104 case 8000:
105 case 16000:
106 case 24000:
107 case 32000:
108 case 48000:
109 case 64000:
110 case 96000:
111 mclk = 12288000;
112 break;
113 case 11025:
114 case 22050:
115 case 44100:
116 case 88200:
117 mclk = 11289600;
118 break;
119 default:
120 return -EINVAL;
121 }
122
123 /*Set the system clk for codec*/
124 snd_soc_dai_set_pll(codec_dai, 0, RT5651_PLL1_S_MCLK, mclk, 24576000);
125
126 ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, 24576000,
127 SND_SOC_CLOCK_IN);
128 if (ret < 0) {
129 dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret);
130 return ret;
131 }
132 return 0;
133 }
134
135 static struct snd_soc_ops rockchip_sound_rt5651_hifi_ops = {
136 .hw_params = rockchip_rt5651_hw_params,
137 };
138
139 static struct snd_soc_ops rockchip_sound_rt5651_voice_ops = {
140 .hw_params = rockchip_rt5651_voice_hw_params,
141 };
142
143 enum {
144 DAILINK_RT5651_HIFI,
145 DAILINK_RT5651_VOICE,
146 DAILINK_RT5651_MAX
147 };
148
149 static struct snd_soc_dai_link rockchip_dailinks[] = {
150 [DAILINK_RT5651_HIFI] = {
151 .name = "RT5651 HIFI",
152 .stream_name = "RT5651 PCM",
153 .codec_dai_name = "rt5651-aif1",
154 .ops = &rockchip_sound_rt5651_hifi_ops,
155 /* set rt5651 as slave */
156 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
157 SND_SOC_DAIFMT_CBS_CFS,
158 },
159 [DAILINK_RT5651_VOICE] = {
160 .name = "RT5651 HDMIIN",
161 .stream_name = "RT5651 PCM",
162 .codec_dai_name = "rt5651-aif2",
163 .ops = &rockchip_sound_rt5651_voice_ops,
164 /* set rt5651 as slave */
165 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
166 SND_SOC_DAIFMT_CBS_CFS,
167 },
168 };
169
170 static struct snd_soc_card rockchip_sound_card = {
171 .name = "realtekrt5651codec_hdmiin",
172 .owner = THIS_MODULE,
173 .dai_link = rockchip_dailinks,
174 .num_links = ARRAY_SIZE(rockchip_dailinks),
175 .dapm_widgets = rockchip_dapm_widgets,
176 .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
177 .dapm_routes = rockchip_dapm_routes,
178 .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes),
179 .controls = rockchip_controls,
180 .num_controls = ARRAY_SIZE(rockchip_controls),
181 };
182
rockchip_sound_probe(struct platform_device * pdev)183 static int rockchip_sound_probe(struct platform_device *pdev)
184 {
185 struct snd_soc_card *card = &rockchip_sound_card;
186 struct device_node *cpu_node;
187 int i, ret;
188
189 dev_info(&pdev->dev, "%s\n", __func__);
190
191 cpu_node = of_parse_phandle(pdev->dev.of_node, "rockchip,cpu", 0);
192 if (!cpu_node) {
193 dev_err(&pdev->dev,
194 "Property 'rockchip,cpu' failed\n");
195 return -EINVAL;
196 }
197
198 for (i = 0; i < DAILINK_RT5651_MAX; i++) {
199 rockchip_dailinks[i].platform_of_node = cpu_node;
200 rockchip_dailinks[i].cpu_of_node = cpu_node;
201
202 rockchip_dailinks[i].codec_of_node =
203 of_parse_phandle(pdev->dev.of_node,
204 "rockchip,codec", i);
205 if (!rockchip_dailinks[i].codec_of_node) {
206 dev_err(&pdev->dev,
207 "Property[%d] 'rockchip,codec' failed\n", i);
208 return -EINVAL;
209 }
210 }
211
212 card->dev = &pdev->dev;
213 platform_set_drvdata(pdev, card);
214 ret = devm_snd_soc_register_card(&pdev->dev, card);
215 if (ret)
216 dev_err(&pdev->dev, "%s register card failed %d\n",
217 __func__, ret);
218
219 dev_info(&pdev->dev, "snd_soc_register_card successful\n");
220 return ret;
221 }
222
223 static const struct of_device_id rockchip_sound_of_match[] = {
224 { .compatible = "rockchip,rockchip-rt5651-sound", },
225 {},
226 };
227
228 static struct platform_driver rockchip_sound_driver = {
229 .probe = rockchip_sound_probe,
230 .driver = {
231 .name = DRV_NAME,
232 .of_match_table = rockchip_sound_of_match,
233 #ifdef CONFIG_PM
234 .pm = &snd_soc_pm_ops,
235 #endif
236 },
237 };
238
239 module_platform_driver(rockchip_sound_driver);
240
241 MODULE_AUTHOR("Xiaotan Luo <lxt@rock-chips.com>");
242 MODULE_DESCRIPTION("Rockchip ASoC Machine Driver");
243 MODULE_LICENSE("GPL v2");
244 MODULE_ALIAS("platform:" DRV_NAME);
245 MODULE_DEVICE_TABLE(of, rockchip_sound_of_match);
246