因而需要配置编译项CONFIG_SND_SOC_SAMSUNG_S3C24XX_UDA134X // s3c24xx_uda134x.c 搜索那四个配置项,配置内核以把上面四项全部配置上去 -> Device Drivers -> Sound card support -> Advanced Linux Sound Architecture -> ALSA for SoC audio support <*> ASoC support for Samsung // CONFIG_SND_SOC_S...
< > ASoC support for Samsung // CONFIG_SND_SOC_SAMSUNG 这项去掉勾选后,下面这项会连带自动消失 < > SoC I2S Audio support UDA134X wired to a S3C24XX // CONFIG_SND_SOC_SAMSUNG_S3C24XX_UDA134X // s3c24xx_uda134x.c 3. 编译内核,然后通过nfs把新的内核下载到开发板,并启动 4. 把新的...
-> ALSA for SoC audio support <*> ASoC support for Samsung // CONFIG_SND_SOC_SAMSUNG <*> SoC I2S Audio support UDA134X wired to a S3C24XX // CONFIG_SND_SOC_SAMSUNG_S3C24XX_UDA134X // s3c24xx_uda134x.c -> System Type [*] S3C2410 DMA support 2.2 修改代码 (根据上面的分析platfo...
1、调试 (1)把程序拷贝到服务器上进行编译 (2)把程序放到内核上面去 重新配置内核,吧原来的声卡驱动程序去掉 a. 修改语法错误 11th_myalsa b. 配置内核去掉原来的声卡驱动 -> Device Drivers -> Sound card support -> Advanced Linux Sound Architecture -> ALSA for SoC audio support c. 使用新内核启动 ...
.platform_name = "davinci-pcm-audio", .codec_dai_name = "HDMI-DAI-CODEC", /* DAI name */ .codec_name = "hdmi-dummy-codec", },#endif }; tvp5158 is added, then in /sound/soc/soc_core.c function snd_soc_instantiate_card, snd_soc_instantiate_card { /* bind DAIs */ for (i...
...* */ #include linux/init.h> #include linux/module.h> #include linux/platform_device.h> #include...---> ALSA for SoC audio support ---> ASoC Simple sound card support 同时,我们还需要在设备树中进行相应到配置...关于simple-card里的描述,差不多可以归纳为: simple-audio-card,name:用户...
one can try debug it in linux/sound/soc/fsl/fsl_sai.c please use Chapter 42 Synchronous Audio Interface (SAI) i.MX6UL Reference Manual http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6ULRM.pdf Best regardsigor 0 Kudos Reply 05-03-2017 04:32 PM 1,644 Views igorp...
如上图所示,在 Linux 内核中,有对 alsa-driver 进一步的封装,即alsa-soc。 ALSA框架从上到下依次为应用程序、ALSA Library API、ALSACORE、ASoC CORE、硬件驱动程序、硬件设备; 应用程序: tinyplay/tinycap/tinymix,这些用户程序直接调用alsa用户库接口来实现放音、录音、控制; ...
audiostream ?ASoCcheckscomponentPCMcallreturnvaluesforerrorsandcleansup aftererrors ASoCPCMMarshaling Note:qcom-opensource/mm-audio/libalsa-intf/alsa_pcm.chastheAPIsexposedtoperformALSAPCMoperationsonPCM devicesin/dev/snd. Example:OpeningaPCMdevicepcmC0D4p ...
linux 4.4 内核中支持两种方式创建dai_driver, 一种是通用的simple-audio-card 架构(简单通用的 machine driver), 一种是传统的编写自定义的 machine driver 来创建。 snd_soc_codec_driver:音频编解码芯片描述及操作函数,如控件/微件/音频路由的描述信息、时钟配置、IO 控制等 ...