2 * rk29_rt5640.c -- SoC audio for rockchip
4 * Driver for rockchip rt5640 audio
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
14 #include <linux/module.h>
15 #include <linux/device.h>
17 #include <linux/of_gpio.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/soc.h>
21 #include <sound/soc-dapm.h>
23 #include "../codecs/rt5640.h"
24 #include "card_info.h"
30 #define DBG(x...) printk(KERN_INFO x)
35 static int rk29_hw_params(struct snd_pcm_substream *substream,
36 struct snd_pcm_hw_params *params)
38 struct snd_soc_pcm_runtime *rtd = substream->private_data;
39 struct snd_soc_dai *codec_dai = rtd->codec_dai;
40 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
41 unsigned int pll_out = 0, dai_fmt = rtd->dai_link->dai_fmt;
44 DBG("Enter::%s----%d\n", __FUNCTION__, __LINE__);
46 /* set codec DAI configuration */
47 ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
49 printk("%s():failed to set the format for codec side\n", __FUNCTION__);
53 /* set cpu DAI configuration */
54 ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt);
56 printk("%s():failed to set the format for cpu side\n", __FUNCTION__);
60 switch(params_rate(params)) {
74 DBG("Enter:%s, %d, Error rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
79 DBG("Enter:%s, %d, rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
81 /*Set the system clk for codec*/
82 ret = snd_soc_dai_set_sysclk(codec_dai, 0, pll_out, SND_SOC_CLOCK_IN);
85 DBG("rk29_hw_params_rt5640:failed to set the sysclk for codec side\n");
89 snd_soc_dai_set_sysclk(cpu_dai, 0, pll_out, 0);
90 snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_BCLK, (pll_out/4)/params_rate(params)-1);
91 snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_MCLK, 3);
93 DBG("Enter:%s, %d, pll_out/4/params_rate(params) = %d \n", __FUNCTION__, __LINE__, (pll_out/4)/params_rate(params));
98 static int rt5640_voice_hw_params(struct snd_pcm_substream *substream,
99 struct snd_pcm_hw_params *params)
101 struct snd_soc_pcm_runtime *rtd = substream->private_data;
102 struct snd_soc_dai *codec_dai = rtd->codec_dai;
103 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
104 unsigned int pll_out = 0, dai_fmt = rtd->dai_link->dai_fmt;
107 DBG("Enter::%s----%d\n", __FUNCTION__, __LINE__);
109 /* set codec DAI configuration */
110 ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
112 printk("%s():failed to set the format for codec side\n", __FUNCTION__);
116 switch(params_rate(params)) {
130 DBG("Enter:%s, %d, Error rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
135 DBG("Enter:%s, %d, rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
137 /*Set the system clk for codec*/
138 snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_MCLK, pll_out, 24576000);
140 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, 24576000, SND_SOC_CLOCK_IN);
144 printk("rk29_hw_params_rt5640:failed to set the sysclk for codec side\n");
148 snd_soc_dai_set_sysclk(cpu_dai, 0, pll_out, 0);
149 snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_BCLK, (pll_out/4)/params_rate(params)-1);
150 snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_MCLK, 3);
152 DBG("Enter:%s, %d, pll_out/4/params_rate(params) = %d \n", __FUNCTION__, __LINE__, (pll_out/4)/params_rate(params));
157 static const struct snd_soc_dapm_widget rt5640_dapm_widgets[] = {
158 SND_SOC_DAPM_MIC("Mic Jack", NULL),
159 SND_SOC_DAPM_MIC("Headset Jack", NULL),
160 SND_SOC_DAPM_SPK("Ext Spk", NULL),
161 SND_SOC_DAPM_HP("Headphone Jack", NULL),
164 static const struct snd_soc_dapm_route audio_map[]={
166 /* Mic Jack --> MIC_IN*/
167 {"micbias1", NULL, "Mic Jack"},
168 {"MIC1", NULL, "micbias1"},
171 {"micbias1", NULL, "Headset Jack"},
172 {"MIC3", NULL, "micbias1"},
174 {"Ext Spk", NULL, "SPOLP"},
175 {"Ext Spk", NULL, "SPOLN"},
176 {"Ext Spk", NULL, "SPORP"},
177 {"Ext Spk", NULL, "SPORN"},
179 {"Headphone Jack", NULL, "HPOL"},
180 {"Headphone Jack", NULL, "HPOR"},
183 static const struct snd_kcontrol_new rk_controls[] = {
184 SOC_DAPM_PIN_SWITCH("Mic Jack"),
185 SOC_DAPM_PIN_SWITCH("Headset Jack"),
186 SOC_DAPM_PIN_SWITCH("Ext Spk"),
187 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
191 * Logic for a rt5640 as connected on a rockchip board.
193 static int rk29_rt5640_init(struct snd_soc_pcm_runtime *rtd)
195 struct snd_soc_codec *codec = rtd->codec;
196 struct snd_soc_dapm_context *dapm = &codec->dapm;
198 DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);
200 snd_soc_add_codec_controls(codec, rk_controls,
201 ARRAY_SIZE(rk_controls));
203 /* Add specific widgets */
204 snd_soc_dapm_new_controls(dapm, rt5640_dapm_widgets,
205 ARRAY_SIZE(rt5640_dapm_widgets));
206 /* Set up specific audio path audio_mapnects */
207 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
209 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
210 snd_soc_dapm_enable_pin(dapm, "Headset Jack");
211 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
212 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
214 snd_soc_dapm_sync(dapm);
219 static struct snd_soc_ops rk29_ops = {
220 .hw_params = rk29_hw_params,
223 static struct snd_soc_ops rt5640_voice_ops = {
224 .hw_params = rt5640_voice_hw_params,
227 static struct snd_soc_dai_link rk29_dai[] = {
229 .name = "RT5640 I2S1",
230 .stream_name = "RT5640 PCM",
231 .codec_dai_name = "rt5640-aif1",
232 .init = rk29_rt5640_init,
236 .name = "RT5640 I2S2",
237 .stream_name = "RT5640 PCM",
238 .codec_dai_name = "rt5640-aif2",
239 .ops = &rt5640_voice_ops,
243 static struct snd_soc_card rockchip_rt5640_snd_card = {
245 .dai_link = rk29_dai,
249 static int rockchip_rt5640_audio_probe(struct platform_device *pdev)
252 struct snd_soc_card *card = &rockchip_rt5640_snd_card;
254 card->dev = &pdev->dev;
256 ret = rockchip_of_get_sound_card_info(card);
258 printk("%s() get sound card info failed:%d\n", __FUNCTION__, ret);
262 ret = snd_soc_register_card(card);
264 printk("%s() register card failed:%d\n", __FUNCTION__, ret);
269 static int rockchip_rt5640_audio_remove(struct platform_device *pdev)
271 struct snd_soc_card *card = platform_get_drvdata(pdev);
273 snd_soc_unregister_card(card);
279 static const struct of_device_id rockchip_rt5640_of_match[] = {
280 { .compatible = "rockchip-rt5640", },
283 MODULE_DEVICE_TABLE(of, rockchip_rt5640_of_match);
284 #endif /* CONFIG_OF */
286 static struct platform_driver rockchip_rt5640_audio_driver = {
288 .name = "rockchip-rt5640",
289 .owner = THIS_MODULE,
290 .of_match_table = of_match_ptr(rockchip_rt5640_of_match),
292 .probe = rockchip_rt5640_audio_probe,
293 .remove = rockchip_rt5640_audio_remove,
296 module_platform_driver(rockchip_rt5640_audio_driver);
298 /* Module information */
299 MODULE_AUTHOR("rockchip");
300 MODULE_DESCRIPTION("ROCKCHIP i2s ASoC Interface");
301 MODULE_LICENSE("GPL");