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【Linux】
i2s_8ch_0： i2s 信号，8进8出配置
发表于 2023-9-25 20:58:42
浏览：919
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固件类型:
自行编译的固件
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SDK包名称:
rk3308_v1.5.0a
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SDK更新到哪个COMMIT:
0000-00-00 00:00:00
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SDK修改内容:
/dts-v1/;
#include "rk3308b-firefly.dtsi"
/ {
model = "Firefly ROC-RK3308B-CC-PLUS analog mic board";
compatible = "firefly,rk3308-roc-cc-plus-amic_emmc", "firefly,rk3308", "rockchip,rk3308";
chosen {
bootargs = "earlycon=uart8250,mmio32,0xff0e0000 swiotlb=1 console=ttyFIQ0 root=PARTLABEL=rootfs rootfstype=ext4 rootwait snd_aloop.index=7 snd_aloop.use_raw_jiffies=1 overlayroot=device:dev=PARTLABEL=userdata,fstype=ext4,mkfs=1 coherent_pool=1m systemd.gpt_auto=0 cgroup_enable=memory swapaccount=1";
};
pdm_i2s_dais: pdm-i2s-dais {
status = "disabled";
compatible = "rockchip,rk3308-multi-dais", "rockchip,multi-dais";
dais = <&pdm_8ch>, <&i2s_8ch_2>;
capture,channel-mapping = <6 2>;
playback,channel-mapping = <0 2>;
bitclock-inversion = <1 0>;
};
pdm-mic-array {
status = "disabled";
compatible = "simple-audio-card";
simple-audio-card,name = "rockchip,pdm-mic-array";
simple-audio-card,cpu {
sound-dai = <&pdm_8ch>;
};
simple-audio-card,codec {
sound-dai = <&dummy_codec>;
};
};
i2s-dmic-array {
status = "okay";
compatible = "simple-audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,name = "rockchip,i2s-dmic-array";
simple-audio-card,mclk-fs = <256>;
simple-audio-card,cpu {
sound-dai = <&i2s_8ch_0>;
};
simple-audio-card,codec {
sound-dai = <&dummy_codec>;
};
};
vad-sound {
status = "disabled";
compatible = "rockchip,multicodecs-card";
rockchip,card-name = "rockchip,rk3308-vad";
rockchip,cpu = <&pdm_i2s_dais>;
rockchip,codec = <&acodec>, <&vad>;
};
vad_acodec_sound: vad-acodec-sound {
status = "okay";
compatible = "rockchip,multicodecs-card";
rockchip,card-name = "rockchip,rk3308b-acodec";
rockchip,codec-hp-det;
rockchip,mclk-fs = <256>;
rockchip,cpu = <&i2s_8ch_2>;
rockchip,codec = <&acodec>, <&vad>;
};
ir_rx {
status = "okay";
compatible = "gpio-ir-receiver";
gpios = <&gpio0 RK_PC0 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&ir_recv_pin>;
};
ir_tx {
status = "okay";
compatible = "pwm-ir-tx";
pwms = <&pwm5 0 25000 0>;
};
leds {
status = "okay";
compatible = "gpio-leds";
power {
label = "firefly:red:power";
linux,default-trigger = "ir-power-click";
default-state = "on";
gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_HIGH>;
};
user {
label = "firefly:blue:user";
linux,default-trigger = "ir-user-click";
default-state = "off";
gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_HIGH>;
};
};
};
&i2s_8ch_0 {
status = "okay";
rockchip,no-dmaengine;
#sound-dai-cells = <0>;
};
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Log日志:
log.txt
问题描述及复现步骤:
我想用i2s_8ch_0做数字音频同步录放，按照文档改了设备树，但是感觉文档和代码没对上。
文档是：
Rockchip Audio 开发指南
文件标识：RK-KF-YF-145
发布版本：V1.5.0
日期：2021-01-20
文件密级：□绝密 □秘密 □内部资料 ■公开
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log.txt
36.6 KB, 下载次数: 1, 下载积分: 灯泡 -1 , 经验 -1
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