全志在线开发者论坛

awwwwa

@willok 发表一个回复就是LV2了

awwwwa

@luminous

awwwwa

@yinjc

awwwwa

@zhouyuan369 删除文件夹内的.repo隐藏文件夹重新拉取

awwwwa

@zhouyuan369 网盘要怎么接收后续更新呢，重新下载25G的压缩包吗？

awwwwa

@vaagolevs 目前R128 1.0 SDK还未正式发布，测试版SDK可能未来会有较大接口变动。请耐心等待

awwwwa

由于屏幕较大首先精简系统内存，关闭DSP核心，并将 RV 核心移到 HSPSRAM 上提高带宽。配置 LV_COLOR_DEPTH 16 提高帧率降低内存占用

patch 如下，增加了新方案r128-devkit-rgb：161ca91b-f759-4108-8bfc-85114394da0c-r128-devkit-rgb.tar.gz

编译打包即可

700ms启动 LVGL：

awwwwa

@vaagolevs 请联系销售人员获取SDK与后续的更新通知

awwwwa

@huang825172 可能目前网络不太好，稍等一下再拉取就行

awwwwa

执行命令设置全局保存密码

git config --global credential.helper store

执行命令输入密码

git clone https://sdk.aw-ol.com/git_repo/V853Tina_Open/manifest.git

使用repo拉取sdk

repo init -u https://sdk.aw-ol.com/git_repo/V853Tina_Open/manifest.git -b master -m tina-v853-open.xml

由于repo更新，目前不支持通过repo输入密码，请先使用git命令输入保存密码

awwwwa

参考Linux端代码即可，本质上为：

加载固件
1. 调用 firmware 接口获取文件系统中的固件
2. 解析固件的 resource_table 段，该段有如下内容
  1. 声明需要的内存（Linux 为其分配）
  2. 声明使用的 vdev（固定为一个）
  3. 声明使用的 vring（固定为两个）
3. 将固件加载到指定地址
注册 rpmsg virtio 设备
1. 提供 vdev->ops（基于 virtio 接口实现的）
2. 与 rpmsg_bus 驱动匹配，完成 rpmsg 初始化
启动小核
1. 调用 rproc->ops->start

awwwwa

打入以下补丁即可

cd package
git apply *.patch

lvgl8-update-version-from-8.1.0-to-8.3.2.zip

awwwwa

@spade8

检查下你的repo安装是不是正常的

awwwwa

AWOL 支持这些芯片，提供SDK下载

参考 https://www.aw-ol.com/docs 中的文档下载

其他芯片需要联系你购买商家的客服或者代理获取

awwwwa

https://blog.csdn.net/u010117864/article/details/88805136

awwwwa

@hqembed 有Tina Linux AIoT，支持Buildroot，Debian

awwwwa

@quincy

awwwwa

disp init configuration

disp_mode             (0:screen0<screen0,fb0>)
screenx_output_type   (0:none; 1:lcd; 2:tv; 3:hdmi;5:vdpo)
screenx_output_mode   (used for hdmi output, 0:480i 1:576i 2:480p 3:576p 4:720p50)
                      (5:720p60 6:1080i50 7:1080i60 8:1080p24 9:1080p50 10:1080p60)
screenx_output_format (for hdmi, 0:RGB 1:yuv444 2:yuv422 3:yuv420)
screenx_output_bits   (for hdmi, 0:8bit 1:10bit 2:12bit 2:16bit)
screenx_output_eotf   (for hdmi, 0:reserve 4:SDR 16:HDR10 18:HLG)
screenx_output_cs     (for hdmi, 0:undefined  257:BT709 260:BT601  263:BT2020)
screenx_output_dvi_hdmi (for hdmi, 0:undefined 1:dvi mode 2:hdmi mode)
screen0_output_range   (for hdmi, 0:default 1:full 2:limited)
screen0_output_scan    (for hdmi, 0:no data 1:overscan 2:underscan)
screen0_output_aspect_ratio  (for hdmi, 8-same as original picture 9-4:3 10-16:9 11-14:9)
fbx format            (4:RGB655 5:RGB565 6:RGB556 7:ARGB1555 8:RGBA5551 9:RGB888 10:ARGB8888 12:ARGB4444)
fbx pixel sequence    (0:ARGB 1:BGRA 2:ABGR 3:RGBA)
fb0_scaler_mode_enable(scaler mode enable, used FE)
fbx_width,fbx_height  (framebuffer horizontal/vertical pixels, fix to output resolution while equal 0)
lcdx_backlight        (lcd init backlight,the range:[0,256],default:197
lcdx_yy               (lcd init screen bright/contrast/saturation/hue, value:0~100, default:50/50/57/50)
lcd0_contrast         (LCD contrast, 0~100)
lcd0_saturation       (LCD saturation, 0~100)
lcd0_hue              (LCD hue, 0~100)
framebuffer software rotation setting:
disp_rotation_used:   (0:disable; 1:enable,you must set fbX_width to lcd_y,
set fbX_height to lcd_x)
degreeX:              (X:screen index; 0:0 degree; 1:90 degree; 3:270 degree)
degreeX_Y:            (X:screen index; Y:layer index 0~15; 0:0 degree; 1:90 degree; 3:270 degree)
devX_output_type : config output type in bootGUI framework in UBOOT-2018.
				   (0:none; 1:lcd; 2:tv; 4:hdmi;)
devX_output_mode : config output resolution(see include/video/sunxi_display2.h) of bootGUI framework in UBOOT-2018
devX_screen_id   : config display index of bootGUI framework in UBOOT-2018
devX_do_hpd      : whether do hpd detectation or not in UBOOT-2018
chn_cfg_mode     : Hardware DE channel allocation config. 0:single display with 6
				   channel, 1:dual display with 4 channel in main display and 2 channel in second
                   display, 2:dual display with 3 channel in main display and 3 channel in second
                   in display.

awwwwa

@damiaa 现在是新版本平台了，直接拿awol账号下载，免去再注册一个平台的麻烦：https://d1.docs.aw-ol.com/study/study_3getsdktoc/

awwwwa

看硬件设计，Avaota系列板子设计网卡常量，Active时灭，BPI 设计网卡灯常灭，Avtive时亮

awwwwa

可以在APST下载

awwwwa

uhttpd 需要加载luci，需要勾选luci的相关配置feed。具体可以参考openwrt官方文档

awwwwa

@zhongwenhua 可以

awwwwa

@wayneyao IP版本不同，驱动有修改，以手册为准，控制器支持32bit，请提供设备树和驱动修改

awwwwa

ov5647 这个型号的摄像头并没有适配，SDK也没有支持。

请参考V85x的摄像头支持手册选择适配的摄像头。这里推荐已经量产的产品使用的GC2063，GC2083，GC4663这三款摄像头，已经经过严格的测试与调试，可以达到最佳画质和分辨率

https://bbs.aw-ol.com/assets/uploads/files/1661647266904-a0795b5c-bac6-4a32-8987-c214b30a0b91-allwinner-v853-raw-sensor-support-list_v1.0.pdf

awwwwa

DDR驱动不兼容，参考xfel改动

awwwwa

@dnvwf

重点：rootfstype=squashfs

v851s/configs/xxx/env.cfg


#kernel command arguments
earlyprintk=sunxi-uart,0x02500000
initcall_debug=0
console=ttyS0,115200
nand_root=/dev/ubiblock0_4
mmc_root=/dev/mmcblk0p4
nor_root=/dev/mtdblock3
init=/init
rdinit=/rdinit
loglevel=8
coherent_pool=32K
#reserve_list=30M@64M,78M@128M,200M@512M
mac=
wifi_mac=
bt_mac=
specialstr=
root_partition=rootfs
mtd_name=sys
rootfstype=squashfs
#set kernel cmdline if boot.img or recovery.img has no cmdline we will use this
setargs_nor=setenv bootargs  earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nor_root} rootwait init=${init} rdinit=${rdinit} partitions=${partitions} cma=${cma} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
setargs_nand=setenv bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel}  ubi.mtd=${mtd_name} root=${nand_root} rootfstype=${rootfstype} rootwait init=${init} rdinit=${rdinit} partitions=${partitions} cma=${cma} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} selinux=${selinux} specialstr=${specialstr} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
setargs_nand_ubi=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_mmc=setenv  bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${mmc_root}  rootwait init=${init} partitions=${partitions} cma=${cma} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} selinux=${selinux} specialstr=${specialstr} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
#nand command syntax: sunxi_flash read address partition_name read_bytes
#0x4007f800 = 0x40080000(kernel entry) - 0x800(boot.img header 2k)
boot_partition=boot
boot_normal=sunxi_flash read 44800000 ${boot_partition};bootm 44800000
boot_recovery=sunxi_flash read 44800000 extend;bootm 44800000
boot_fastboot=fastboot
#recovery key
recovery_key_value_max=0x13
recovery_key_value_min=0x10
#fastboot key
fastboot_key_value_max=0x8
fastboot_key_value_min=0x2

#uboot system env config
bootdelay=1
#default bootcmd, will change at runtime according to key press
#default nand boot
bootcmd=run setargs_nand boot_normal
#verify the kernel
verify=N

awwwwa

R128-S2 驱动 1024x600 RGB 显示屏并运行 LVGL
https://bbs.aw-ol.com/topic/4316/share/1

awwwwa

awwwwa

@cai_yp openSUSE 需要装虚拟机使用

awwwwa

支持，HXIN接有源，HXOUT接地

awwwwa

@kanken6174 在 V851s buildroot openwrt 警告中说：

忽略这些警告

忽略这些警告即可，这些是openwrt提供的软件包，暂时不适配v851s平台，所以有警告

awwwwa

https://github.com/YuzukiHD/FreeRTOS-HIFI4-DSP

awwwwa

没有看到相关log

awwwwa

@cai_yp 分区参数错误，只打包了UDISK分区，但是UDISK是自动生成的分区

32356+0 records in
32356+0 records out
8283136 bytes (8.3 MB) copied, 0.0394041 s, 210 MB/s
this is not a partition key
update mbr file ok
----------------mbr convert to gpt start---------------------
out: sunxi_gpt_nor.fex
source: sunxi_mbr_nor.fex
input_logic_offset: 256
input_flash_size: 16M
gpt partition entry crc32 = 0x618ebc8
gpt header crc32 = 0x4fdf09e2
GPT----part num 10---
gpt_entry: 128
gpt_header: 92
GPT:env         : 120           127
GPT:env-redund  : 128           12f
GPT:arm-lpsram  : 130           a8f
GPT:rv-lpsram   : a90           1a2f
GPT:dsp-hpsram  : 1a30          206f
GPT:rtos-xip    : 2070          33f7
GPT:arm-b       : 33f8          3d57
GPT:config      : 3d58          3d77
GPT:settings    : 3d78          3db7
GPT:UDISK       : 3db8          7fff
update gpt file ok
----------------mbr convert to gpt end---------------------
boot0: boot0_spinor.fex
redund boot0: boot0_spinor.fex
mbr: sunxi_gpt_nor.fex
partition: sys_partition_nor.bin
UDISK_partition_size: 16968 sector
outfile: rtos_16Mnor.bin
logic_start: 128K
total_image_size: 16M
load file: boot0_spinor.fex ok
load file: sunxi_gpt_nor.fex ok
load file: boot0_spinor.fex ok
support redund boot0 at 0x10000
load file: sys_partition_nor.bin ok
part name=env
file name:env.fex
part size:8 sector
load file: env.fex ok
part name=env-redund
file name:env.fex
part size:8 sector
load file: env.fex ok
part name=arm-lpsram
file name:rtos_arm.fex
part size:2400 sector
load file: rtos_arm.fex ok
part name=rv-lpsram
file name:rtos_riscv.fex
part size:4000 sector
load file: rtos_riscv.fex ok
part name=dsp-hpsram
file name:rtos_dsp.fex
part size:1600 sector
load file: rtos_dsp.fex ok
part name=rtos-xip
file name:rtos_xip_rv.fex
part size:5000 sector
load file: rtos_xip_rv.fex ok
part name=arm-b
file name:etf.fex
part size:2400 sector
load file: etf.fex ok
part name=config
file name:config.fex
part size:32 sector
load file: config.fex ok
part name=settings
part size:64 sector
part name=UDISK
file name:data_udisk.fex
load file: data_udisk.fex ok
partname: UDISK
this is not a partition key
merge_package ok

awwwwa

可以尝试中断绑定其他CPU核心，例如CPU1

awwwwa

Unable to handle kernel paging request at virtual address 0000000000040008

看看内核代码rb_next附近，有非法地址访问

awwwwa

先上固件：

9724ff03-b4bc-4a07-8bac-05431383d983-gaviarhandhelda.img

awwwwa

@woxow 把你的proxy代理关了

awwwwa

Linux都没启动，先检查为什么Linux没启动

awwwwa

目前板子处于烧录下载模式，显示 USB Device (VID_xxxx_PID_xxxx)，需要进入系统后才是adb模式，显示 Tina ADB

awwwwa

@abc16883
下载工具：
AllwinnertechPhoeniSuitRelease20230905.zip

下载驱动：
全志USB烧录驱动20201229

awwwwa

@zhoudaxia3000 目前最新的是1.2.2

awwwwa

UDISK属性写错了

awwwwa

adb 可用时可以直接读取 /dev/by-name/rootfs 将rootfs导出来

adb pull /dev/by-name/rootfs rootfs.img

也可以push到tmp文件夹然后dd写入

adb push rootfs.img /tmp
dd if=/tmp/rootfs.img of=/dev/by-name/rootfs

awwwwa

@missdangerous 固件损坏，GUID 分区表损坏

awwwwa

只要LPCLK引脚接地，就可以使用内部RC时钟32K，这个时钟不准确。如果不需要使用低功耗可以不外挂

awwwwa

NOR固件不能烧卡

awwwwa

@huangyuhan 没有配置默认保存用户名密码，需要多次输入

awwwwa

@kanken6174 不建议编译gcc进入固件，首先这个gcc没有适配平台，其次v851s的64M内存也无法支持gcc的使用

awwwwa

xr806 使用 git clone，不是repo

https://xr806.docs.aw-ol.com/rtos/env/

awwwwa

一、简介

tina 使用busybox init方式启动，首先调用执行pseudo_init（挂载文件系统，如/proc、/tmp、/sys /etc、/usr），接着会调用/sbin/init进程，而init进程调用的第一个启动脚本为/etc/init.d/rcS。

二、平台的自定义
不同的平台文件系统具有其共性与特殊性。tina/packge/busybox-init-base-files/files下提供了所有平台的基础文件。而在tina/target/allwinner/XXX/busybox-init-base-files下存放的是平台特性文件，其优先级高于前者,即当前者目录和后者存在有相同文件时，以后者为准。如有以下两个文件:

A：tina/target/allwinner/r11-R11_pref1/busybox-init-base-files/etc/banner
B：tina/package/busybox-init-base-files/files/etc/banner

最终拷贝到文件系统中的为A。

三、pseudo_init与rcS
pseudo_init与rcS文件中存在很多平台共性的代码，避免系统充斥大量冗余代码,以及方便基础文件的维护和开发。所以不允许在特定平台下自定义pseudo_init、rcS文件（必须使用tina/packge/busybox-init-base-files/files下的pseudo_init、rcS）。
如果需要添加平台特定配置（pseudo_init，rcS没有配置），可将其写到rc.preboot,rc.final中，参考第四节。

四、rcS脚本
1.功能描述
（1）执行/etc/init.d/rc.preboot。
为了满足开机快速启动的需求，提供了用户可自定义rc.preboot文件，即在tina/target/allwinner/XXX/busybox-init-base-files/etc/init.d/目录下创建rc.preboot脚本文件，将会被rcS最先调用执行。
（2）配置打印级别，主机名称。
（3）执行/etc/init.d/rc.log，配置系统log信息。
系统默认使用的是tina/package/busybox-init-base-files/files/etc/init.d/rc.log脚本进行配置系统log信息。用户可在tina/target/allwinner/XXX/busybox-init-base-files/etc/init.d/下创建rc.log，自定义rc.log。
如果需要使用默认rc.log，需要在make menuconfig配置。

	Base system  --->
	 busybox-init-base-files......................... Busybox init base system  --->
	  [*]   Use the rc.log

（4）挂载UDISK。
（5）执行/etc/init.d/rc.modules，加载内核模块。
系统默认使用的是tina/package/busybox-init-base-files/files/etc/init.d/rc.modules脚本进行内核模块自加载，用户可在tina/target/allwinner/XXX/busybox-init-base-files/etc/init.d/下创建rc.modules，自定义rc.modules。
如果需要使用默认rc.modules，需要在make menuconfig配置如下。

	Base system  --->
	 busybox-init-base-files......................... Busybox init base system  --->
	   [*]   Use the rc.modules

（6）启动/etc/rc.d下的脚本。

关于执行rc.d下的启动脚本，目的为兼容procd式的应用脚本。/etc/rc.d下的脚本是链接到/etc/init.d/下，默认情况下只执行adbd,如果需要执行其他脚本，需要在tina/target/allwinner/XXX/busybox-init-base-files/etc/init.d/下，自定义load_script.conf文件，文件内容中写上要启动的应用，如adbd（注意，每一个应用占一行）。可参考：tina/packge/busybox-init-base-files/files/etc/init.d/load_script.conf。

	如果需要执行rc.d下的启动脚本，需要在make menuconfig做如下配置。
	Base system  --->
	 busybox-init-base-files......................... Busybox init base system  --->
	   [*]   Auto load the script in /etc/rc.d

（7）ota初始化。

（8）执行/etc/init.d/rc.final,用户自定义启动脚本。
用户可在tina/packge/busybox-init-base-files/files/etc/init.d/下创建一个rc.final脚本，自定义启动应用程序,该脚本将会被rcS最后调用执行。

2.rc.preboot与rc.final的区别？
rc.preboot比rc.final先运行，在执行rc.preboot脚本的时候，系统的一些初始化操作还没完成，如挂载UDISK、内核模块自加载、ota等等操作。而rc.final执行的时候，以上的初始化操作已经完成。

五.如何写应用的启动脚本

example：开机自启动smartlinkd（tina/package/allwinner/smartlinkd/files/smartlinkd.init）
1.方法一（特定格式要求）

详细的格式参考：
https://wiki.openwrt.org/inbox/procd-init-scripts
https://wiki.openwrt.org/doc/techref/initscripts

（1）procd式

#!/bin/sh /etc/rc.common   #本质为script脚本,以#!开头, 之后执行/etc/rc.common
START=98		#开机启动优先级(序列) [数值越小, 越先启动]
STOP=98			#关机停止优先级(序列) [数值越小, 越先关闭]

USE_PROCD=1
PROG=smartlinkd

start_service() {    #启动函数
    procd_open_instance
    procd_set_param command $PROG -d
    procd_close_instance
}

shutdown() {
    echo shutdown
}

（2）Sys式

#!/bin/sh /etc/rc.common
START=98
STOP=98

PROG=smartlinkd

start() {
  smartlinkd -d &
}

使用上述procd式和sys式脚本，既能兼容procd init启动和busybox init的启动方式。
另外如果使用的是busybox init的启动方式，还需要在load_script.conf文件中换行添加内容：smartlinkd

2.方法二（无特定格式要求）
创建rc.preboot或者rc.final脚本，添加启动smartlinkd的内容。

awwwwa

没有交叉编译，gstreamer没有配置交叉编译工具

awwwwa

内核版本不匹配，请更换Ubuntu内核版本到5.15.y，目前你是6.5

awwwwa

参照opencv的编写使用cmake的makefile

include $(TOPDIR)/rules.mk

PKG_NAME:=opencv
PKG_VERSION:=4.1.1
PKG_RELEASE:=1

PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://github.com/opencv/opencv
PKG_SOURCE_VERSION:=$(PKG_VERSION)
PKG_MIRROR_HASH:=c8587820421d2f22acdafe4712d068ae490897dc445bdb4aa128ecaa8e65d3a1

PKG_MAINTAINER:=
PKG_LICENSE:=BSD-3-Clause
PKG_LICENSE_FILES:=LICENSE

CMAKE_INSTALL:=1
CMAKE_BINARY_SUBDIR:=build
PKG_BUILD_PARALLEL:=1
PKG_USE_MIPS16:=0

include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk

define Package/opencv/Default/description
 OpenCV (Open Source Computer Vision Library) is an open source computer
 vision and machine learning software library. OpenCV was built to provide
 a common infrastructure for computer vision applications and to accelerate
 the use of machine perception in the commercial products. Being a
 BSD-licensed product, OpenCV makes it easy for businesses to utilize
 and modify the code.
endef

define Package/opencv
  SECTION:=libs
  CATEGORY:=Libraries
  TITLE:=OpenCV
  URL:=https://opencv.org/
  DEPENDS:=+libpthread +librt +libatomic +libstdcpp +zlib +libjpeg +python3 +python3-numpy
endef

CMAKE_OPTIONS += \
	-DBUILD_opencv_gpu:BOOL=OFF \
	-DWITH_1394:BOOL=OFF -DBUILD_opencv_stitching:BOOL=OFF \
	-DBUILD_opencv_superres:BOOL=OFF -DBUILD_opencv_ts:BOOL=OFF \
	-DBUILD_opencv_highgui:BOOL=ON \
	-DBUILD_opencv_videostab:BOOL=OFF \
	-DWITH_FFMPEG:BOOL=OFF \
	-DWITH_GSTREAMER:BOOL=OFF \
	-DWITH_LIBV4L:BOOL=ON \
	-DWITH_PNG:BOOL=OFF \
	-DWITH_GTK:BOOL=OFF \
	-DWITH_TIFF:BOOL=OFF \
	-DCMAKE_VERBOSE:BOOL=OFF \
	-DENABLE_PRECOMPILED_HEADERS=OFF \
	-DPYTHON3_INCLUDE_PATH=$(STAGING_DIR)/usr/include/python3.9 \
	-DPYTHON3_LIBRARIES=$(STAGING_DIR)/usr/lib/libpython3.9.so \
	-DPYTHON3_NUMPY_INCLUDE_DIRS=$(TARGET_ROOTFS_DIR)/pypi/numpy-1.20.1/ipkg-install/usr/lib/python3.9/site-packages/numpy/core/include \
	-DBUILD_OPENCV_PYTHON3:BOOL=ON

TARGET_LDFLAGS += -latomic

define Package/opencv/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/* $(1)/usr/lib/
endef

$(eval $(call BuildPackage,opencv))

awwwwa

先确定挂载overlayfs

查看 pseudo_init 中 MOUNT_OVERLAY 是不是 1，如果不是配置为 1

package/busybox-init-base-files/files/pseudo_init

修改挂载分区

找到文件末尾，吧 rootfs_data 改成UDISK

awwwwa

@uccccc 在为什么添加Gstreamer后会报这个错误中说：

@awwwwa 麻烦问一下这个应该怎麼添加，有没有相关的资料亚

https://openwrt.org/docs/guide-developer/packages

awwwwa

参考这里，重新安装下驱动
https://r128.docs.aw-ol.com/r128/prepare_dev_env/#windows_1

awwwwa

mmo camerademo -B

awwwwa

@xingxing8 在 t113使用sd卡启动卡住了中说：

先看这行

VFS: Cannot open root device "mmcblk0p5" or unknown-block(0,0): error -6

这行表示没有挂载上mmc设备

再往上找

[ 4.002919] sunxi-mmc 4020000.sdmmc: Got CD GPIO
[ 4.008458] sunxi-mmc 4020000.sdmmc: set cd-gpios as 24M fail
[ 4.018859] sunxi-mmc 4020000.sdmmc: sdc set ios:clk 0Hz bm PP pm UP vdd 21 width 1 timing LEGACY(SDR12) dt B

CD卡检测GPIO检测不到卡，关闭MMC驱动

Linux中的驱动为了省电会根据CD引脚检测卡是否存在，不存在则关闭MMC驱动，U-boot驱动没有这个逻辑

解决方法：

正向解决法

根据实物硬件查看CD引脚配置，上下拉状态是否正常，是否反转CD

软件规避法

直接关闭CD检测功能，取消注释 broken-cd;

awwwwa

@cwj1986521 内核没有配置UBIFS

CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
# CONFIG_UBIFS_FS_LZO is not set
# CONFIG_UBIFS_FS_ZLIB is not set
# CONFIG_UBIFS_FS_ZSTD is not set
# CONFIG_UBIFS_ATIME_SUPPORT is not set
CONFIG_UBIFS_FS_XATTR=y
CONFIG_UBIFS_FS_SECURITY=y

awwwwa

@yunyisa 自制的固件无法打包成全志的镜像，只能由SDK生成，全志镜像有专有的封装格式，不仅仅是地址偏移

awwwwa

AW平台的DRAM控制器支持地址线REMAP，可以通过REMAP简化外部不同种类的DRAM的连接。

这个REAMP是固定在芯片里的不能自己修改，在电路原理图可以看到REMAP的引脚。

如图，如果需要挂DDR3内存，需要接DDR3的REAMP，如果需要接DDR2，可以接默认的REMAP

举个其他平台的例子：
这里接的是 LPDDR4，使用LPDDR4的REMAP

这里接的是DDR4，使用DDR4的REMAP

awwwwa

uboot的设备树和kernel的设备树都需要配置

awwwwa

@cwj1986521 需要用 make kernel_menuconfig，如果使用的是build.sh 需要 ./build.sh menuconfig

内核配置文件会被SDK覆盖，进入内核文件夹修改的均无效

awwwwa

测试固件
rtos_freertos_r128s2_evt_uart0_16Mnor.img

awwwwa

对照手册：

SPI2 地址 0x04027000，没问题
SPI2 中断号 49，配置时需要减掉SIG和PPI的数量32，也就是17

中断号配置错误，应该为17不是18

		spi2: spi@04027000 {
			#address-cells = <1>;
			#size-cells = <0>;
			compatible = "allwinner,sun8i-spi";
			device_type = "spi2";
			reg = <0x0 0x04027000 0x0 0x1000>;
			interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&clk_pll_periph0300m>, <&clk_spi2>;
			status = "disabled";
		};

awwwwa

@xsyr1024 在请教如何排查 linux kernel 启动卡主的问题中说：

[ 0.969253] 000: printk: console [ttyS0] enabled
[ 0.973945] 000: printk: bootconsole [earlycon0] disabled

看着是earlycon0作为串口输出驱动正常，但是切换到ttyS0作为串口输出的时候ttyS0没有输出，先检查uart部分

另外这个是LinuxRT内核吗

awwwwa

此处的电容不可以省略

AVCC，VRAx 需要外挂电容

awwwwa

屏参改一下

lcd_driver_name     = "default_lcd"
lcd_backlight       = 150
lcd_if              = 0
lcd_x               = 1024
lcd_y               = 600
lcd_width           = 150
lcd_height          = 94
lcd_rb_swap         = 0
lcd_dclk_freq       = 48
lcd_pwm_used        = 1
lcd_pwm_ch          = 7
lcd_pwm_freq        = 500000
lcd_pwm_pol         = 1
lcd_hbp             = 160
lcd_ht              = 1344
lcd_hspw            = 20
lcd_vbp             = 20
lcd_vt              = 635
lcd_vspw            = 3
lcd_lvds_if         = 0
lcd_lvds_colordepth = 1
lcd_lvds_mode       = 0
lcd_frm             = 0
lcd_io_phase        = 0x0000
lcd_gamma_en        = 0
lcd_bright_curve_en = 0
lcd_cmap_en         = 0

awwwwa

@xjy_5 一般来说配置sensor0_isp_used = <0>; 就不会调用ISP，虽然会配置但是不会处理。需要再跟踪一下调用

awwwwa

@arnis

obj-m  := hello.o
KERNEL := ../lichee/linux-5.4/
PWD    := $(shell pwd)

modules :
        $(MAKE) -C $(KERNEL) M=$(PWD) modules

.PHONEY:clean
clean :
        rm -f *.o *.ko

这是一个基本的内核模块Makefile。下面是各个变量和命令的含义：

obj-m  := hello.o

定义要编译的内核模块的目标文件名为hello.o。这里使用了obj-m变量，它是一个特殊的变量，用于编译内核模块。

KERNEL := ../lichee/linux-5.4/

定义内核源代码目录的位置，这里是../lichee/linux-5.4/。根据实际情况修改该路径。

PWD    := $(shell pwd)

定义当前目录的路径为PWD。这里使用了shell命令来获取当前目录的路径。

modules :
        $(MAKE) -C $(KERNEL) M=$(PWD) modules

定义一个名为modules的伪目标，它的依赖关系为空。执行该目标时，会进入内核源代码目录$(KERNEL)，并使用M=$(PWD)选项告诉内核Makefile，模块源代码在当前目录中。最后执行modules目标，编译内核模块。

.PHONEY:clean
clean :
        rm -f *.o *.ko

定义一个伪目标clean，它的依赖关系为空。执行该目标时，会删除当前目录下的所有.o和.ko文件。

如果需要编译多个内核模块，可以将obj-m变量中的目标文件名替换为多个目标文件名，如obj-m := hello.o world.o another.o。此外，还可以在Makefile中定义其他命令，比如安装、卸载等命令，以更方便地管理内核模块。

编译指令如下：

make ARCH=arm CROSS_COMPILE=$(pwd)/../prebuilt/gcc/linux-x86/arm/toolchain-sunxi-glibc/toolchain/bin/arm-openwrt-linux-gnueabi-

这是一个编译ARM架构的程序的Makefile命令。下面是各个参数的含义：

ARCH=arm

指定目标架构为ARM。

CROSS_COMPILE=$(pwd)/../prebuilt/gcc/linux-x86/arm/toolchain-sunxi-glibc/toolchain/bin/arm-openwrt-linux-gnueabi-

指定交叉编译器的路径及前缀。这里使用了$(pwd)变量获取当前工作目录的路径，并拼接上交叉编译器的路径及前缀。根据实际情况修改该路径。

使用交叉编译器可以在x86主机上编译ARM平台的程序。arm-openwrt-linux-gnueabi-是交叉编译器的前缀，表示编译出来的可执行文件适用于OpenWrt系统。

在执行该命令之前，需要确保已经安装了相应的交叉编译工具链，并将其加入环境变量中。如果没有安装，请参考相关文档进行安装。

awwwwa

// SPDX-License-Identifier: GPL-2.0-only
/*
 * drivers/leds/leds-sunxi.c - Allwinner RGB LED Driver
 *
 * Copyright (C) 2018 Allwinner Technology Limited. All rights reserved.
 *      http://www.allwinnertech.com
 *
 *Author : Albert Yu <yuxyun@allwinnertech.com>
 *	   Lewis <liuyu@allwinnertech.com>
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/leds.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/dmaengine.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/dma-mapping.h>
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/delay.h>
#include <linux/regulator/consumer.h>
#include <linux/reset.h>

#if IS_ENABLED(CONFIG_PM)
#include <linux/pm.h>
#endif
#include "leds-sunxi.h"

/* For debug */
#define LED_ERR(fmt, arg...) pr_err("%s()%d - "fmt, __func__, __LINE__, ##arg)

#define dprintk(level_mask, fmt, arg...)				\
do {									\
	if (unlikely(debug_mask & level_mask))				\
		pr_warn("%s()%d - "fmt, __func__, __LINE__, ##arg);	\
} while (0)

static u32 debug_mask = 1;
static struct sunxi_led *sunxi_led_global;
static struct class *led_class;

#define sunxi_slave_id(d, s) (((d)<<16) | (s))

/*For Driver */
static void led_dump_reg(struct sunxi_led *led, u32 offset, u32 len)
{
	u32 i;
	u8 buf[64], cnt = 0;

	for (i = 0; i < len; i = i + REG_INTERVAL) {
		if (i%HEXADECIMAL == 0)
			cnt += sprintf(buf + cnt, "0x%08x: ",
					(u32)(led->res->start + offset + i));

		cnt += sprintf(buf + cnt, "%08x ",
				readl(led->iomem_reg_base + offset + i));

		if (i%HEXADECIMAL == REG_CL) {
			pr_warn("%s\n", buf);
			cnt = 0;
		}
	}
}

static void sunxi_clk_get(struct sunxi_led *led)
{
	struct device *dev = led->dev;
	struct device_node *np = dev->of_node;

	led->clk_ledc = of_clk_get(np, 0);
	if (IS_ERR(led->clk_ledc))
		LED_ERR("failed to get clk_ledc!\n");

	led->clk_cpuapb = of_clk_get(np, 1);
	if (IS_ERR(led->clk_cpuapb))
		LED_ERR("failed to get clk_cpuapb!\n");
}

static void sunxi_clk_put(struct sunxi_led *led)
{
	clk_put(led->clk_ledc);
	clk_put(led->clk_cpuapb);
	led->clk_ledc = NULL;
	led->clk_cpuapb = NULL;
}

static void sunxi_clk_enable(struct sunxi_led *led)
{
	clk_prepare_enable(led->clk_ledc);
	clk_prepare_enable(led->clk_cpuapb);
}

static void sunxi_clk_disable(struct sunxi_led *led)
{
	clk_disable_unprepare(led->clk_ledc);
}

static void sunxi_clk_init(struct sunxi_led *led)
{
	sunxi_clk_get(led);
	sunxi_clk_enable(led);
}

static void sunxi_clk_deinit(struct sunxi_led *led)
{
	sunxi_clk_disable(led);
	sunxi_clk_put(led);
}

static u32 sunxi_get_reg(int offset)
{
	struct sunxi_led *led = sunxi_led_global;
	u32 value = ioread32(((u8 *)led->iomem_reg_base) + offset);

	return value;
}

static void sunxi_set_reg(int offset, u32 value)
{
	struct sunxi_led *led = sunxi_led_global;

	iowrite32(value, ((u8 *)led->iomem_reg_base) + offset);
}

static inline void sunxi_set_reset_ns(struct sunxi_led *led)
{
	u32 n, reg_val;
	u32 mask = 0x1FFF;
	u32 min = SUNXI_RESET_TIME_MIN_NS;
	u32 max = SUNXI_RESET_TIME_MAX_NS;

	if (led->reset_ns < min || led->reset_ns > max) {
		LED_ERR("invalid parameter, reset_ns should be %u-%u!\n",
				min, max);
		return;
	}

	n = (led->reset_ns - 42) / 42;
	reg_val = sunxi_get_reg(LED_RESET_TIMING_CTRL_REG_OFFSET);
	reg_val &= ~(mask << 16);
	reg_val |= (n << 16);
	sunxi_set_reg(LED_RESET_TIMING_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_set_t1h_ns(struct sunxi_led *led)
{
	u32 n, reg_val;
	u32 mask = 0x3F;
	u32 shift = 21;
	u32 min = SUNXI_T1H_MIN_NS;
	u32 max = SUNXI_T1H_MAX_NS;

	if (led->t1h_ns < min || led->t1h_ns > max) {
		LED_ERR("invalid parameter, t1h_ns should be %u-%u!\n",
				min, max);
		return;
	}

	n = (led->t1h_ns - 42) / 42;
	reg_val = sunxi_get_reg(LED_T01_TIMING_CTRL_REG_OFFSET);
	reg_val &= ~(mask << shift);
	reg_val |= n << shift;
	sunxi_set_reg(LED_T01_TIMING_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_set_t1l_ns(struct sunxi_led *led)
{
	u32 n, reg_val;
	u32 mask = 0x1F;
	u32 shift = 16;
	u32 min = SUNXI_T1L_MIN_NS;
	u32 max = SUNXI_T1L_MAX_NS;

	if (led->t1l_ns < min || led->t1l_ns > max) {
		LED_ERR("invalid parameter, t1l_ns should be %u-%u!\n",
				min, max);
		return;
	}

	n = (led->t1l_ns - 42) / 42;
	reg_val = sunxi_get_reg(LED_T01_TIMING_CTRL_REG_OFFSET);
	reg_val &= ~(mask << shift);
	reg_val |= n << shift;
	sunxi_set_reg(LED_T01_TIMING_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_set_t0h_ns(struct sunxi_led *led)
{
	u32 n, reg_val;
	u32 mask = 0x1F;
	u32 shift = 6;
	u32 min = SUNXI_T0H_MIN_NS;
	u32 max = SUNXI_T0H_MAX_NS;

	if (led->t0h_ns < min || led->t0h_ns > max) {
		LED_ERR("invalid parameter, t0h_ns should be %u-%u!\n",
			min, max);
		return;
	}

	n = (led->t0h_ns - 42) / 42;
	reg_val = sunxi_get_reg(LED_T01_TIMING_CTRL_REG_OFFSET);
	reg_val &= ~(mask << shift);
	reg_val |= n << shift;
	sunxi_set_reg(LED_T01_TIMING_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_set_t0l_ns(struct sunxi_led *led)
{
	u32 n, reg_val;
	u32 min = SUNXI_T0L_MIN_NS;
	u32 max = SUNXI_T0L_MAX_NS;

	if (led->t0l_ns < min || led->t0l_ns > max) {
		LED_ERR("invalid parameter, t0l_ns should be %u-%u!\n",
				min, max);
		return;
	}

	n = (led->t0l_ns - 42) / 42;
	reg_val = sunxi_get_reg(LED_T01_TIMING_CTRL_REG_OFFSET);
	reg_val &= ~0x3F;
	reg_val |= n;
	sunxi_set_reg(LED_T01_TIMING_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_set_wait_time0_ns(struct sunxi_led *led)
{
	u32 n, reg_val;
	u32 min = SUNXI_WAIT_TIME0_MIN_NS;
	u32 max = SUNXI_WAIT_TIME0_MAX_NS;

	if (led->wait_time0_ns < min || led->wait_time0_ns > max) {
		LED_ERR("invalid parameter, wait_time0_ns should be %u-%u!\n",
				min, max);
		return;
	}

	n = (led->wait_time0_ns - 42) / 42;
	reg_val = (1 << 8) | n;
	sunxi_set_reg(LEDC_WAIT_TIME0_CTRL_REG, reg_val);
}

static inline void sunxi_set_wait_time1_ns(struct sunxi_led *led)
{
	unsigned long long tmp, max = SUNXI_WAIT_TIME1_MAX_NS;
	u32 min = SUNXI_WAIT_TIME1_MIN_NS;
	u32 n, reg_val;

	if (led->wait_time1_ns < min || led->wait_time1_ns > max) {
		LED_ERR("invalid parameter, wait_time1_ns should be %u-%llu!\n",
			min, max);
		return;
	}

	tmp = led->wait_time1_ns;
	n = div_u64(tmp, 42);
	n -= 1;
	reg_val = (1 << 31) | n;
	sunxi_set_reg(LEDC_WAIT_TIME1_CTRL_REG, reg_val);
}

static inline void sunxi_set_wait_data_time_ns(struct sunxi_led *led)
{
	u32 min, max;
#ifndef SUNXI_FPGA_LEDC
	u32 mask = 0x1FFF, shift = 16, reg_val = 0, n;
#endif
	min = SUNXI_WAIT_DATA_TIME_MIN_NS;
#ifdef SUNXI_FPGA_LEDC
	/*
	 * For FPGA platforms, it is easy to meet wait data timeout for
	 * the obvious latency of task which is because of less cpu cores
	 * and lower cpu frequency compared with IC platforms, so here we
	 * permit long enough time latency.
	 */
	max = SUNXI_WAIT_DATA_TIME_MAX_NS_FPGA;
#else /* SUNXI_FPGA_LEDC */
	max = SUNXI_WAIT_DATA_TIME_MAX_NS_IC;
#endif /* SUNXI_FPGA_LEDC */

	if (led->wait_data_time_ns < min || led->wait_data_time_ns > max) {
		LED_ERR("invalid parameter, wait_data_time_ns should be %u-%u!\n",
			min, max);
		return;
	}

#ifndef SUNXI_FPGA_LEDC
	n = (led->wait_data_time_ns - 42) / 42;
	reg_val &= ~(mask << shift);
	reg_val |= (n << shift);
	sunxi_set_reg(LEDC_DATA_FINISH_CNT_REG_OFFSET, reg_val);
#endif /* SUNXI_FPGA_LEDC */
}

static void sunxi_ledc_set_time(struct sunxi_led *led)
{
	sunxi_set_reset_ns(led);
	sunxi_set_t1h_ns(led);
	sunxi_set_t1l_ns(led);
	sunxi_set_t0h_ns(led);
	sunxi_set_t0l_ns(led);
	sunxi_set_wait_time0_ns(led);
	sunxi_set_wait_time1_ns(led);
	sunxi_set_wait_data_time_ns(led);
}

static void sunxi_ledc_set_length(struct sunxi_led *led)
{
	u32 reg_val;
	u32 length = led->length;

	if (length == 0)
		return;

	if (length > led->led_count)
		return;

	reg_val = sunxi_get_reg(LEDC_CTRL_REG_OFFSET);
	reg_val &= ~(0x1FFF << 16);
	reg_val |=  length << 16;
	sunxi_set_reg(LEDC_CTRL_REG_OFFSET, reg_val);

	reg_val = sunxi_get_reg(LED_RESET_TIMING_CTRL_REG_OFFSET);
	reg_val &= ~0x3FF;
	reg_val |= length - 1;
	sunxi_set_reg(LED_RESET_TIMING_CTRL_REG_OFFSET, reg_val);
}

static void sunxi_ledc_set_output_mode(struct sunxi_led *led, const char *str)
{
	u32 val;
	u32 mask = 0x7;
	u32 shift = 6;
	u32 reg_val = sunxi_get_reg(LEDC_CTRL_REG_OFFSET);

	if (str != NULL) {
		if (!strncmp(str, "GRB", 3))
			val = SUNXI_OUTPUT_GRB;
		else if (!strncmp(str, "GBR", 3))
			val = SUNXI_OUTPUT_GBR;
		else if (!strncmp(str, "RGB", 3))
			val = SUNXI_OUTPUT_RGB;
		else if (!strncmp(str, "RBG", 3))
			val = SUNXI_OUTPUT_RBG;
		else if (!strncmp(str, "BGR", 3))
			val = SUNXI_OUTPUT_BGR;
		else if (!strncmp(str, "BRG", 3))
			val = SUNXI_OUTPUT_BRG;
		else
			return;
	} else {
		val = led->output_mode.val;
	}

	reg_val &= ~(mask << shift);
	reg_val |= val;

	sunxi_set_reg(LEDC_CTRL_REG_OFFSET, reg_val);

	if (str != NULL) {
		if (strncmp(str, led->output_mode.str, 3))
			memcpy(led->output_mode.str, str, 3);
	}

	if (val != led->output_mode.val)
		led->output_mode.val = val;
}

static void sunxi_ledc_enable_irq(u32 mask)
{
	u32 reg_val = 0;

	reg_val |= mask;
	sunxi_set_reg(LEDC_INT_CTRL_REG_OFFSET, reg_val);
}

static void sunxi_ledc_disable_irq(u32 mask)
{
	u32 reg_val = 0;

	reg_val = sunxi_get_reg(LEDC_INT_CTRL_REG_OFFSET);
	reg_val &= ~mask;
	sunxi_set_reg(LEDC_INT_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_ledc_enable(struct sunxi_led *led)
{
	u32 reg_val;

	reg_val = sunxi_get_reg(LEDC_CTRL_REG_OFFSET);
	reg_val |=  1;
	sunxi_set_reg(LEDC_CTRL_REG_OFFSET, reg_val);
}

static inline void sunxi_ledc_reset(struct sunxi_led *led)
{
	u32 reg_val = sunxi_get_reg(LEDC_CTRL_REG_OFFSET);

	sunxi_ledc_disable_irq(LEDC_TRANS_FINISH_INT_EN | LEDC_FIFO_CPUREQ_INT_EN
			| LEDC_WAITDATA_TIMEOUT_INT_EN | LEDC_FIFO_OVERFLOW_INT_EN
			| LEDC_GLOBAL_INT_EN);

	if (debug_mask & DEBUG_INFO2) {
		dprintk(DEBUG_INFO2, "dump reg:\n");
		led_dump_reg(led, 0, 0x30);
	}

	reg_val |= 1 << 1;
	sunxi_set_reg(LEDC_CTRL_REG_OFFSET, reg_val);
}

#ifdef CONFIG_DEBUG_FS
static ssize_t reset_ns_write(struct file *filp, const char __user *buf,
			size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_RESET_TIME_MIN_NS;
	max = SUNXI_RESET_TIME_MAX_NS;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->reset_ns = val;
	sunxi_set_reset_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, reset_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t reset_ns_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->reset_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations reset_ns_fops = {
	.owner = THIS_MODULE,
	.write = reset_ns_write,
	.read  = reset_ns_read,
};

static ssize_t t1h_ns_write(struct file *filp, const char __user *buf,
			size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_T1H_MIN_NS;
	max = SUNXI_T1H_MAX_NS;

	if (count >= sizeof(buffer))
		return -EINVAL;

	if (copy_from_user(buffer, buf, count))
		return -EFAULT;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		return -EINVAL;

	if (val < min || val > max)
		goto err_out;

	led->t1h_ns = val;

	sunxi_set_t1h_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, t1h_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t t1h_ns_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->t1h_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations t1h_ns_fops = {
	.owner = THIS_MODULE,
	.write = t1h_ns_write,
	.read  = t1h_ns_read,
};

static ssize_t t1l_ns_write(struct file *filp, const char __user *buf,
			size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_T1L_MIN_NS;
	max = SUNXI_T1L_MAX_NS;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->t1l_ns = val;
	sunxi_set_t1l_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, t1l_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t t1l_ns_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->t1l_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations t1l_ns_fops = {
	.owner = THIS_MODULE,
	.write = t1l_ns_write,
	.read  = t1l_ns_read,
};

static ssize_t t0h_ns_write(struct file *filp, const char __user *buf,
			size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_T0H_MIN_NS;
	max = SUNXI_T0H_MAX_NS;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->t0h_ns = val;
	sunxi_set_t0h_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, t0h_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t t0h_ns_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->t0h_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations t0h_ns_fops = {
	.owner = THIS_MODULE,
	.write = t0h_ns_write,
	.read  = t0h_ns_read,
};

static ssize_t t0l_ns_write(struct file *filp, const char __user *buf,
			size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_T0L_MIN_NS;
	max = SUNXI_T0L_MAX_NS;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->t0l_ns = val;
	sunxi_set_t0l_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, t0l_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t t0l_ns_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->t0l_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations t0l_ns_fops = {
	.owner = THIS_MODULE,
	.write = t0l_ns_write,
	.read  = t0l_ns_read,
};

static ssize_t wait_time0_ns_write(struct file *filp, const char __user *buf,
				size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_WAIT_TIME0_MIN_NS;
	max = SUNXI_WAIT_TIME0_MAX_NS;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->wait_time0_ns = val;
	sunxi_set_wait_time0_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, wait_time0_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t wait_time0_ns_read(struct file *filp, char __user *buf,
				size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->wait_time0_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations wait_time0_ns_fops = {
	.owner = THIS_MODULE,
	.write = wait_time0_ns_write,
	.read  = wait_time0_ns_read,
};

static ssize_t wait_time1_ns_write(struct file *filp, const char __user *buf,
				size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min;
	unsigned long long max;
	unsigned long long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_WAIT_TIME1_MIN_NS;
	max = SUNXI_WAIT_TIME1_MAX_NS;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoull(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->wait_time1_ns = val;
	sunxi_set_wait_time1_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, wait_time1_ns should be %u-%lld!\n",
		min, max);

	return -EINVAL;
}

static ssize_t wait_time1_ns_read(struct file *filp, char __user *buf,
				size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%lld\n", led->wait_time1_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations wait_time1_ns_fops = {
	.owner = THIS_MODULE,
	.write = wait_time1_ns_write,
	.read  = wait_time1_ns_read,
};

static ssize_t wait_data_time_ns_write(struct file *filp,
				const char __user *buf,
				size_t count, loff_t *offp)
{
	int err;
	char buffer[64];
	u32 min, max;
	unsigned long val;
	struct sunxi_led *led = sunxi_led_global;

	min = SUNXI_WAIT_DATA_TIME_MIN_NS;
#ifdef SUNXI_FPGA_LEDC
	max = SUNXI_WAIT_DATA_TIME_MAX_NS_FPGA;
#else
	max = SUNXI_WAIT_DATA_TIME_MAX_NS_IC;
#endif

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	err = kstrtoul(buffer, 10, &val);
	if (err)
		goto err_out;

	if (val < min || val > max)
		goto err_out;

	led->wait_data_time_ns = val;
	sunxi_set_wait_data_time_ns(led);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter, wait_data_time_ns should be %u-%u!\n",
		min, max);

	return -EINVAL;
}

static ssize_t wait_data_time_ns_read(struct file *filp, char __user *buf,
				size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%u\n", led->wait_data_time_ns);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations wait_data_time_ns_fops = {
	.owner = THIS_MODULE,
	.write = wait_data_time_ns_write,
	.read  = wait_data_time_ns_read,
};

static int data_show(struct seq_file *s, void *data)
{
	int i;
	struct sunxi_led *led = sunxi_led_global;

	for (i = 0; i < led->led_count; i++) {
		if (!(i % 4)) {
			if (i + 4 <= led->led_count)
				seq_printf(s, "%04d-%04d", i, i + 4);
			else
				seq_printf(s, "%04d-%04d", i, led->led_count);
		}
		seq_printf(s, " 0x%08x", led->data[i]);
		if (((i % 4) == 3) || (i == led->led_count - 1))
			seq_puts(s, "\n");
	}

	return 0;
}

static int data_open(struct inode *inode, struct file *file)
{
	return single_open(file, data_show, inode->i_private);
}

static const struct file_operations data_fops = {
	.owner = THIS_MODULE,
	.open  = data_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static ssize_t output_mode_write(struct file *filp, const char __user *buf,
			size_t count, loff_t *offp)
{
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	if (count >= sizeof(buffer))
		goto err_out;

	if (copy_from_user(buffer, buf, count))
		goto err_out;

	buffer[count] = '\0';

	sunxi_ledc_set_output_mode(led, buffer);

	*offp += count;

	return count;

err_out:
	LED_ERR("invalid parameter!\n");

	return -EINVAL;
}

static ssize_t output_mode_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	struct sunxi_led *led = sunxi_led_global;

	r = snprintf(buffer, 64, "%s\n", led->output_mode.str);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations output_mode_fops = {
	.owner = THIS_MODULE,
	.write = output_mode_write,
	.read  = output_mode_read,
};

static ssize_t hwversion_read(struct file *filp, char __user *buf,
			size_t count, loff_t *offp)
{
	int r;
	char buffer[64];
	u32 reg_val, major_ver, minor_ver;

	reg_val = sunxi_get_reg(LEDC_VER_NUM_REG);
	major_ver = reg_val >> 16;
	minor_ver = reg_val & 0xF;

	r = snprintf(buffer, 64, "r%up%u\n", major_ver, minor_ver);

	return simple_read_from_buffer(buf, count, offp, buffer, r);
}

static const struct file_operations hwversion_fops = {
	.owner = THIS_MODULE,
	.read  = hwversion_read,
};

static void sunxi_led_create_debugfs(struct sunxi_led *led)
{
	struct dentry *debugfs_dir, *debugfs_file;

	debugfs_dir = debugfs_create_dir("sunxi_leds", NULL);
	if (IS_ERR_OR_NULL(debugfs_dir)) {
		LED_ERR("debugfs_create_dir failed!\n");
		return;
	}

	led->debugfs_dir = debugfs_dir;

	debugfs_file = debugfs_create_file("reset_ns", 0660,
				debugfs_dir, NULL, &reset_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for reset_ns failed!\n");

	debugfs_file = debugfs_create_file("t1h_ns", 0660,
				debugfs_dir, NULL, &t1h_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for t1h_ns failed!\n");

	debugfs_file = debugfs_create_file("t1l_ns", 0660,
				debugfs_dir, NULL, &t1l_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for t1l_ns failed!\n");

	debugfs_file = debugfs_create_file("t0h_ns", 0660,
				debugfs_dir, NULL, &t0h_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for t0h_ns failed!\n");

	debugfs_file = debugfs_create_file("t0l_ns", 0660,
				debugfs_dir, NULL, &t0l_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for t0l_ns failed!\n");

	debugfs_file = debugfs_create_file("wait_time0_ns", 0660,
				debugfs_dir, NULL, &wait_time0_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for wait_time0_ns failed!\n");

	debugfs_file = debugfs_create_file("wait_time1_ns", 0660,
				debugfs_dir, NULL, &wait_time1_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for wait_time1_ns failed!\n");

	debugfs_file = debugfs_create_file("wait_data_time_ns", 0660,
				debugfs_dir, NULL, &wait_data_time_ns_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for wait_data_time_ns failed!\n");

	debugfs_file = debugfs_create_file("data", 0440,
				debugfs_dir, NULL, &data_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for data failed!\n");

	debugfs_file = debugfs_create_file("output_mode", 0660,
				debugfs_dir, NULL, &output_mode_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for output_mode failed!\n");

	if (!debugfs_file)
		LED_ERR("debugfs_create_file for trans_mode failed!\n");

	debugfs_file = debugfs_create_file("hwversion", 0440,
				debugfs_dir, NULL, &hwversion_fops);
	if (!debugfs_file)
		LED_ERR("debugfs_create_file for hwversion failed!\n");
}

static void sunxi_led_remove_debugfs(struct sunxi_led *led)
{
	debugfs_remove_recursive(led->debugfs_dir);
}
#endif /* CONFIG_DEBUG_FS */

static void sunxi_ledc_set_dma_mode(struct sunxi_led *led)
{
	u32 reg_val = 0;

	reg_val |= 1 << 5;
	sunxi_set_reg(LEDC_DMA_CTRL_REG, reg_val);

	sunxi_ledc_disable_irq(LEDC_FIFO_CPUREQ_INT_EN);
}

static void sunxi_ledc_set_cpu_mode(struct sunxi_led *led)
{
	u32 reg_val = 0;

	reg_val &= ~(1 << 5);
	sunxi_set_reg(LEDC_DMA_CTRL_REG, reg_val);

	sunxi_ledc_enable_irq(LEDC_FIFO_CPUREQ_INT_EN);
}

static void sunxi_ledc_dma_callback(void *param)
{
	dprintk(DEBUG_INFO, "finish\n");
}

static void sunxi_ledc_trans_data(struct sunxi_led *led)
{
	int i, err;
	size_t size;
	unsigned long flags;
	phys_addr_t dst_addr;
	struct dma_slave_config slave_config;
	struct device *dev = led->dev;
	struct dma_async_tx_descriptor *dma_desc;

	/* less than 32 lights use cpu transmission. */
	/* more than 32 lights use dma transmission. */
	if (led->length <= SUNXI_LEDC_FIFO_DEPTH) {
		dprintk(DEBUG_INFO, "cpu xfer\n");
		ktime_get_coarse_real_ts64(&(led->start_time));
		sunxi_ledc_set_time(led);
		sunxi_ledc_set_output_mode(led, led->output_mode.str);
		sunxi_ledc_set_cpu_mode(led);
		sunxi_ledc_set_length(led);

		sunxi_ledc_enable_irq(LEDC_TRANS_FINISH_INT_EN | LEDC_WAITDATA_TIMEOUT_INT_EN
				| LEDC_FIFO_OVERFLOW_INT_EN | LEDC_GLOBAL_INT_EN);

		sunxi_ledc_enable(led);

		for (i = 0; i < led->length; i++)
			sunxi_set_reg(LEDC_DATA_REG_OFFSET, led->data[i]);

	} else {
		dprintk(DEBUG_INFO, "dma xfer\n");

		size = led->length * 4;
		led->src_dma = dma_map_single(dev, led->data,
					size, DMA_TO_DEVICE);
		dst_addr = led->res->start + LEDC_DATA_REG_OFFSET;

		flags = DMA_PREP_INTERRUPT | DMA_CTRL_ACK;

		slave_config.direction = DMA_MEM_TO_DEV;
		slave_config.src_addr = led->src_dma;
		slave_config.dst_addr = dst_addr;
		slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
		slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
		slave_config.src_maxburst = 4;
		slave_config.dst_maxburst = 4;

		err = dmaengine_slave_config(led->dma_chan, &slave_config);
		if (err < 0) {
			LED_ERR("dmaengine_slave_config failed!\n");
			return;
		}

		dma_desc = dmaengine_prep_slave_single(led->dma_chan,
							led->src_dma,
							size,
							DMA_MEM_TO_DEV,
							flags);
		if (!dma_desc) {
			LED_ERR("dmaengine_prep_slave_single failed!\n");
			return;
		}

		dma_desc->callback = sunxi_ledc_dma_callback;

		dmaengine_submit(dma_desc);
		dma_async_issue_pending(led->dma_chan);

		ktime_get_coarse_real_ts64(&(led->start_time));
		sunxi_ledc_set_time(led);
		sunxi_ledc_set_output_mode(led, led->output_mode.str);
		sunxi_ledc_set_dma_mode(led);
		sunxi_ledc_set_length(led);
		sunxi_ledc_enable_irq(LEDC_TRANS_FINISH_INT_EN | LEDC_WAITDATA_TIMEOUT_INT_EN
				| LEDC_FIFO_OVERFLOW_INT_EN | LEDC_GLOBAL_INT_EN);
		sunxi_ledc_enable(led);
	}
}

static inline void sunxi_ledc_clear_all_irq(void)
{
	u32 reg_val = sunxi_get_reg(LEDC_INT_STS_REG_OFFSET);

	reg_val &= ~0x1F;
	sunxi_set_reg(LEDC_INT_STS_REG_OFFSET, reg_val);
}

static inline void sunxi_ledc_clear_irq(enum sunxi_ledc_irq_status_reg irq)
{
	u32 reg_val = sunxi_get_reg(LEDC_INT_STS_REG_OFFSET);

	reg_val &= ~irq;
	sunxi_set_reg(LEDC_INT_STS_REG_OFFSET, reg_val);
}

static int sunxi_ledc_complete(struct sunxi_led *led)
{
	unsigned long flags = 0;
	unsigned long timeout = 0;
	u32 reg_val;

	/*wait_event_timeout return 0   : timeout
	 *wait_event_timeout return > 0 : thr left time
	 * */
	timeout = wait_event_timeout(led->wait, led->result, 5*HZ);
	if (timeout == 0) {
		reg_val = sunxi_get_reg(LEDC_INT_STS_REG_OFFSET);
		pr_err("LEDC INTERRUPT STATUS REG IS %x", reg_val);
		LED_ERR("led xfer timeout\n");
		reg_val = sunxi_get_reg(LEDC_INT_STS_REG_OFFSET);
		pr_err("LEDC INTERRUPT STATUS REG IS %x", reg_val);
		return -ETIME;
	} else if (led->result == RESULT_ERR) {
		return -ECOMM;
	}

	dprintk(DEBUG_INFO, "xfer complete\n");

	spin_lock_irqsave(&led->lock, flags);
	led->result = 0;
	spin_unlock_irqrestore(&led->lock, flags);

	return 0;
}

static irqreturn_t sunxi_ledc_irq_handler(int irq, void *dev_id)
{
	long delta_time_ns;
	u32 irq_status, max_ns;
	struct sunxi_led *led = sunxi_led_global;
	struct device *dev = led->dev;
	struct timespec64 current_time;

	spin_lock(&led->lock);

	irq_status = sunxi_get_reg(LEDC_INT_STS_REG_OFFSET);

	sunxi_ledc_clear_all_irq();

	if (irq_status & LEDC_TRANS_FINISH_INT) {
		sunxi_ledc_reset(led);
		led->result = RESULT_COMPLETE;
		goto out;
	}

	if (irq_status & LEDC_WAITDATA_TIMEOUT_INT) {
		ktime_get_coarse_real_ts64(&current_time);
		delta_time_ns = current_time.tv_sec - led->start_time.tv_sec;
		delta_time_ns *= 1000 * 1000 * 1000;
		delta_time_ns += current_time.tv_nsec - led->start_time.tv_nsec;

		max_ns = led->wait_data_time_ns;

		if (delta_time_ns <= max_ns) {
			spin_unlock(&led->lock);
			return IRQ_HANDLED;
		}

		sunxi_ledc_reset(led);

		if (delta_time_ns <= max_ns * 2) {
			sunxi_ledc_trans_data(led);
		} else {
			LED_ERR("wait time is more than %d ns,"
				"going to reset ledc and drop this operation!\n",
				max_ns);
			led->result = RESULT_ERR;
		}

		goto out;
	}

	if (irq_status & LEDC_FIFO_OVERFLOW_INT) {
		LED_ERR("there exists fifo overflow issue, irq_status=0x%x!\n",
				irq_status);
		sunxi_ledc_reset(led);
		led->result = RESULT_ERR;
		goto out;
	}

out:
	if (led->dma_chan)
		dma_unmap_single(dev, led->src_dma, led->length * 4, DMA_TO_DEVICE);
	wake_up(&led->wait);
	led->length = 0;
	spin_unlock(&led->lock);
	return IRQ_HANDLED;
}

static int sunxi_ledc_irq_init(struct sunxi_led *led)
{
	int err;
	struct device *dev = led->dev;
	unsigned long flags = 0;
	const char *name = "ledcirq";
	struct platform_device *pdev;

	pdev = container_of(dev, struct platform_device, dev);

	spin_lock_init(&led->lock);

	led->irqnum = platform_get_irq(pdev, 0);
	if (led->irqnum < 0)
		LED_ERR("failed to get ledc irq!\n");

	err = request_irq(led->irqnum, sunxi_ledc_irq_handler,
				flags, name, dev);
	if (err) {
		LED_ERR("failed to install IRQ handler for irqnum %d\n",
			led->irqnum);
		return -EPERM;
	}

	return 0;
}

static void sunxi_ledc_irq_deinit(struct sunxi_led *led)
{
	free_irq(led->irqnum, led->dev);
	sunxi_ledc_disable_irq(LEDC_TRANS_FINISH_INT_EN | LEDC_FIFO_CPUREQ_INT_EN
			| LEDC_WAITDATA_TIMEOUT_INT_EN | LEDC_FIFO_OVERFLOW_INT_EN
			| LEDC_GLOBAL_INT_EN);
}

static void sunxi_ledc_pinctrl_init(struct sunxi_led *led)
{
	struct device *dev = led->dev;
	struct pinctrl *pinctrl = devm_pinctrl_get_select_default(dev);

	led->pctrl = pinctrl;
	if (IS_ERR(pinctrl))
		LED_ERR("devm_pinctrl_get_select_default failed!\n");
}

static int led_regulator_request(struct sunxi_led *led)
{
	struct regulator *regu = NULL;

	/* Consider "n*" as nocare. Support "none", "nocare", "null", "" etc. */
	if ((led->regulator_id[0] == 'n') || (led->regulator_id[0] == 0))
		return 0;

	regu = regulator_get(NULL, led->regulator_id);
	if (IS_ERR(regu)) {
		LED_ERR("get regulator %s failed!\n", led->regulator_id);
		return -1;
	}
	led->regulator = regu;

	return 0;
}

static int led_regulator_release(struct sunxi_led *led)
{
	if (led->regulator == NULL)
		return 0;

	regulator_put(led->regulator);
	led->regulator = NULL;

	return 1;
}

static int sunxi_ledc_dma_get(struct sunxi_led *led)
{
	if (led->dma_chan == NULL) {
		led->dma_chan = dma_request_chan(led->dev, "tx");
		if (IS_ERR(led->dma_chan)) {
			LED_ERR("failed to get the DMA channel!\n");
			return -EFAULT;
		}
	}
	return 0;
}

static int sunxi_set_led_brightness(struct led_classdev *led_cdev,
			enum led_brightness value)
{
	unsigned long flags;
	u32 r, g, b, shift, old_data, new_data, length;
	struct sunxi_led_info *pinfo;
	struct sunxi_led_classdev_group *pcdev_group;
	struct sunxi_led *led = sunxi_led_global;
	int err;

	pinfo = container_of(led_cdev, struct sunxi_led_info, cdev);

	switch (pinfo->type) {
	case LED_TYPE_G:
		pcdev_group = container_of(pinfo,
			struct sunxi_led_classdev_group, g);
		g = value;
		shift = 16;
		break;
	case LED_TYPE_R:
		pcdev_group = container_of(pinfo,
			struct sunxi_led_classdev_group, r);
		r = value;
		shift = 8;
		break;

	case LED_TYPE_B:
		pcdev_group = container_of(pinfo,
			struct sunxi_led_classdev_group, b);
		b = value;
		shift = 0;
		break;
	}

	old_data = led->data[pcdev_group->led_num];
	if (((old_data >> shift) & 0xFF) == value)
		return 0;

	if (pinfo->type != LED_TYPE_R)
		r = pcdev_group->r.cdev.brightness;
	if (pinfo->type != LED_TYPE_G)
		g = pcdev_group->g.cdev.brightness;
	if (pinfo->type != LED_TYPE_B)
		b = pcdev_group->b.cdev.brightness;

	/* LEDC treats input data as GRB by default */
	new_data = (g << 16) | (r << 8) | b;
	length = pcdev_group->led_num + 1;

	spin_lock_irqsave(&led->lock, flags);
	led->data[pcdev_group->led_num] = new_data;
	led->length = length;
	spin_unlock_irqrestore(&led->lock, flags);

	/* prepare for dma xfer, dynamic apply dma channel */
	if (led->length > SUNXI_LEDC_FIFO_DEPTH) {
		err = sunxi_ledc_dma_get(led);
		if (err)
			return err;
	}

	sunxi_ledc_trans_data(led);
	if (debug_mask & DEBUG_INFO2) {
		dprintk(DEBUG_INFO2, "dump reg:\n");
		led_dump_reg(led, 0, 0x30);
	}

	sunxi_ledc_complete(led);

	if (debug_mask & DEBUG_INFO1)
		pr_warn("num = %03u\n", length);

	return 0;
}

static int sunxi_register_led_classdev(struct sunxi_led *led)
{
	int i, err;
	size_t size;
	struct device *dev = led->dev;
	struct led_classdev *pcdev_RGB;

	dprintk(DEBUG_INIT, "led_classdev start\n");
	if (!led->led_count)
		led->led_count = SUNXI_DEFAULT_LED_COUNT;

	size = sizeof(struct sunxi_led_classdev_group) * led->led_count;
	led->pcdev_group = devm_kzalloc(dev, size, GFP_KERNEL);
	if (!led->pcdev_group)
		return -ENOMEM;

	for (i = 0; i < led->led_count; i++) {
		led->pcdev_group[i].r.type = LED_TYPE_R;
		pcdev_RGB = &led->pcdev_group[i].r.cdev;
		pcdev_RGB->name = devm_kzalloc(dev, 16, GFP_KERNEL);
		if (!pcdev_RGB->name)
			return -ENOMEM;
		sprintf((char *)pcdev_RGB->name, "sunxi_led%dr", i);
		pcdev_RGB->brightness = LED_OFF;
		pcdev_RGB->brightness_set_blocking = sunxi_set_led_brightness;
		pcdev_RGB->dev = dev;
		err = led_classdev_register(dev, pcdev_RGB);
		if (err < 0) {
			LED_ERR("led_classdev_register %s failed!\n",
				pcdev_RGB->name);
			return err;
		}

		led->pcdev_group[i].g.type = LED_TYPE_G;
		pcdev_RGB = &led->pcdev_group[i].g.cdev;
		pcdev_RGB->name = devm_kzalloc(dev, 16, GFP_KERNEL);
		if (!pcdev_RGB->name)
			return -ENOMEM;
		sprintf((char *)pcdev_RGB->name, "sunxi_led%dg", i);
		pcdev_RGB->brightness = LED_OFF;
		pcdev_RGB->brightness_set_blocking = sunxi_set_led_brightness;
		pcdev_RGB->dev = dev;
		err = led_classdev_register(dev, pcdev_RGB);
		if (err < 0) {
			LED_ERR("led_classdev_register %s failed!\n",
			pcdev_RGB->name);
			return err;
		}

		led->pcdev_group[i].b.type = LED_TYPE_B;
		pcdev_RGB = &led->pcdev_group[i].b.cdev;
		pcdev_RGB->name = devm_kzalloc(dev, 16, GFP_KERNEL);
		if (!pcdev_RGB->name)
			return -ENOMEM;
		sprintf((char *)pcdev_RGB->name, "sunxi_led%db", i);
		pcdev_RGB->brightness = LED_OFF;
		pcdev_RGB->brightness_set_blocking = sunxi_set_led_brightness;
		pcdev_RGB->dev = dev;
		err = led_classdev_register(dev, pcdev_RGB);
		if (err < 0) {
			LED_ERR("led_classdev_register %s failed!\n",
					pcdev_RGB->name);
			return err;
		}

		led->pcdev_group[i].led_num = i;
	}

	size = sizeof(u32) * led->led_count;
	led->data = devm_kzalloc(dev, size, GFP_KERNEL);
	if (!led->data)
		return -ENOMEM;

	return 0;
}

static void sunxi_unregister_led_classdev(struct sunxi_led *led)
{
	int i;

	for (i = 0; i < led->led_count; i++) {
		kfree(led->pcdev_group[i].b.cdev.name);
		led->pcdev_group[i].b.cdev.name = NULL;
		kfree(led->pcdev_group[i].g.cdev.name);
		led->pcdev_group[i].g.cdev.name = NULL;
		kfree(led->pcdev_group[i].r.cdev.name);
		led->pcdev_group[i].r.cdev.name = NULL;
		led_classdev_unregister(&led->pcdev_group[i].b.cdev);
		led_classdev_unregister(&led->pcdev_group[i].g.cdev);
		led_classdev_unregister(&led->pcdev_group[i].r.cdev);
	}
	kfree(led->data);
	led->data = NULL;


	kfree(led->pcdev_group);
	led->pcdev_group = NULL;
}

static inline int sunxi_get_u32_of_property(const char *propname, int *val)
{
	int err;
	struct sunxi_led *led = sunxi_led_global;
	struct device *dev = led->dev;
	struct device_node *np = dev->of_node;

	err = of_property_read_u32(np, propname, val);
	if (err < 0)
		LED_ERR("failed to get the value of propname %s!\n", propname);

	return err;
}

static inline int sunxi_get_str_of_property(const char *propname,
					const char **out_string)
{
	int err;
	struct sunxi_led *led = sunxi_led_global;
	struct device *dev = led->dev;
	struct device_node *np = dev->of_node;

	err = of_property_read_string(np, propname, out_string);
	if (err < 0)
		LED_ERR("failed to get the string of propname %s!\n", propname);

	return err;
}

static void sunxi_get_para_of_property(struct sunxi_led *led)
{
	int err;
	u32 val;
	const char *str;

	err = sunxi_get_u32_of_property("led_count", &val);
	if (!err)
		led->led_count = val;

	memcpy(led->output_mode.str, "GRB", 3);
	led->output_mode.val = SUNXI_OUTPUT_GRB;
	err = sunxi_get_str_of_property("output_mode", &str);
	if (!err)
		if (!strncmp(str, "BRG", 3) ||
			!strncmp(str, "GBR", 3) ||
			!strncmp(str, "RGB", 3) ||
			!strncmp(str, "RBG", 3) ||
			!strncmp(str, "BGR", 3))
			memcpy(led->output_mode.str, str, 3);

	err =  sunxi_get_str_of_property("led_regulator", &str);
	if (!err) {
		if (strlen(str) >= sizeof(led->regulator_id))
			LED_ERR("illegal regulator id\n");
		else {
			strcpy(led->regulator_id, str);
			pr_info("led_regulator: %s\n", led->regulator_id);
		}
	}

	err = sunxi_get_u32_of_property("reset_ns", &val);
	if (!err)
		led->reset_ns = val;

	err = sunxi_get_u32_of_property("t1h_ns", &val);
	if (!err)
		led->t1h_ns = val;

	err = sunxi_get_u32_of_property("t1l_ns", &val);
	if (!err)
		led->t1l_ns = val;

	err = sunxi_get_u32_of_property("t0h_ns", &val);
	if (!err)
		led->t0h_ns = val;

	err = sunxi_get_u32_of_property("t0l_ns", &val);
	if (!err)
		led->t0l_ns = val;

	err = sunxi_get_u32_of_property("wait_time0_ns", &val);
	if (!err)
		led->wait_time0_ns = val;

	err = sunxi_get_u32_of_property("wait_time1_ns", &val);
	if (!err)
		led->wait_time1_ns = val;

	err = sunxi_get_u32_of_property("wait_data_time_ns", &val);
	if (!err)
		led->wait_data_time_ns = val;
}
static void sunxi_led_set_all(struct sunxi_led *led, u8 channel,
		enum led_brightness value)
{
	u32 i;
	struct led_classdev *led_cdev;

	if (channel%3 == 0) {
		for (i = 0; i < led->led_count; i++) {
			led_cdev = &led->pcdev_group[i].r.cdev;
			mutex_lock(&led_cdev->led_access);
			sunxi_set_led_brightness(led_cdev, value);
			mutex_unlock(&led_cdev->led_access);
		}
	} else if (channel%3 == 1) {
		for (i = 0; i < led->led_count; i++) {
			led_cdev = &led->pcdev_group[i].g.cdev;
			mutex_lock(&led_cdev->led_access);
			sunxi_set_led_brightness(led_cdev, value);
			mutex_unlock(&led_cdev->led_access);
		}
	} else {
		for (i = 0; i < led->led_count; i++) {
			led_cdev = &led->pcdev_group[i].b.cdev;
			mutex_lock(&led_cdev->led_access);
			sunxi_set_led_brightness(led_cdev, value);
			mutex_unlock(&led_cdev->led_access);
		}
	}
}

static ssize_t led_show(struct class *class,
			struct class_attribute *attr,
			char *buf)
{
	struct sunxi_led *led = sunxi_led_global;

	sunxi_led_set_all(led, 0, 0);
	sunxi_led_set_all(led, 1, 0);
	sunxi_led_set_all(led, 2, 0);

	sunxi_led_set_all(led, 0, 20);
	msleep(500);
	sunxi_led_set_all(led, 1, 20);
	msleep(500);
	sunxi_led_set_all(led, 2, 20);
	msleep(500);

	sunxi_led_set_all(led, 0, 0);
	sunxi_led_set_all(led, 1, 0);
	sunxi_led_set_all(led, 2, 0);

	return 0;
}

static struct class_attribute led_class_attrs[] = {
	__ATTR(light, 0644, led_show, NULL),
	//__ATTR_NULL,
};

static void led_node_init(void)
{
	int i;
	int err;
	/* sys/class/led/xxx */
	for (i = 0; i < ARRAY_SIZE(led_class_attrs); i++) {
		err = class_create_file(led_class, &led_class_attrs[i]);
		if (err) {
			LED_ERR("class_create_file() failed!\n");
			while (i--)
				class_remove_file(led_class, &led_class_attrs[i]);
			class_destroy(led_class);
			led_class = NULL;
		}
	}
}

static int sunxi_led_probe(struct platform_device *pdev)
{
	int err;
	struct sunxi_led *led;
	struct device *dev = &pdev->dev;
	struct resource *mem_res = NULL;
	int ret;

	dprintk(DEBUG_INIT, "start\n");

	led = devm_kzalloc(dev, sizeof(struct sunxi_led), GFP_KERNEL);
	if (!led)
		return -ENOMEM;

	sunxi_led_global = led;

	platform_set_drvdata(pdev, led);
	led->dev = dev;

	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (mem_res == NULL) {
		LED_ERR("failed to get MEM res\n");
		ret = -ENXIO;
		goto emem;
	}

	if (!request_mem_region(mem_res->start, resource_size(mem_res),
				mem_res->name)) {
		LED_ERR("failed to request mem region\n");
		ret = -EINVAL;
		goto emem;
	}

	led->iomem_reg_base = ioremap(mem_res->start, resource_size(mem_res));
	if (!led->iomem_reg_base) {
		ret = -EIO;
		goto eiomap;
	}
	led->res = mem_res;

	led->output_mode.str = devm_kzalloc(dev, 3, GFP_KERNEL);
	if (!led->output_mode.str) {
		ret = -ENOMEM;
		goto ezalloc_str;
	}

	sunxi_get_para_of_property(led);

	err = led_regulator_request(led);
	if (err < 0) {
		LED_ERR("request regulator failed!\n");
		ret = err;
		goto eregulator;
	}

	err = sunxi_register_led_classdev(led);
	if (err) {
		LED_ERR("failed to register led classdev\n");
		ret = err;
		goto eclassdev;
	}

	sunxi_ledc_set_time(led);

	led->reset = devm_reset_control_get(&pdev->dev, NULL);
	if (IS_ERR(led->reset)) {
		LED_ERR("get reset clk error\n");
		return -EINVAL;
	}
	ret = reset_control_deassert(led->reset);
	if (ret) {
		LED_ERR("deassert clk error, ret:%d\n", ret);
		return ret;
	}

	sunxi_clk_init(led);

	init_waitqueue_head(&led->wait);

	err = sunxi_ledc_irq_init(led);
	if (err) {
		LED_ERR("failed to init irq\n");
		ret = err;
		goto eirq;
	}

	sunxi_ledc_pinctrl_init(led);

#ifdef CONFIG_DEBUG_FS
	sunxi_led_create_debugfs(led);
#endif /* CONFIG_DEBUG_FS */

	led_class = class_create(THIS_MODULE, "led");
	if (IS_ERR(led_class)) {
		LED_ERR("class_register err\n");
		class_destroy(led_class);
		ret = -EFAULT;
		goto eclass;
	}
	led_node_init();
	dprintk(DEBUG_INIT, "finish\n");
	return 0;

eclass:
#ifdef CONFIG_DEBUG_FS
	sunxi_led_remove_debugfs(led);
#endif /* CONFIG_DEBUG_FS */

	sunxi_ledc_irq_deinit(led);

eirq:
	sunxi_unregister_led_classdev(led);
	sunxi_clk_deinit(led);

eclassdev:
	led_regulator_release(led);

eregulator:
	kfree(led->output_mode.str);

ezalloc_str:
	iounmap(led->iomem_reg_base);
	led->iomem_reg_base = NULL;

eiomap:
	release_mem_region(mem_res->start, resource_size(mem_res));

emem:
	kfree(led);
	return ret;
}

static int sunxi_led_remove(struct platform_device *pdev)
{
	struct sunxi_led *led = platform_get_drvdata(pdev);

	class_destroy(led_class);

#ifdef CONFIG_DEBUG_FS
	sunxi_led_remove_debugfs(led);
#endif /* CONFIG_DEBUG_FS */

	if (led->dma_chan) {
		dmaengine_terminate_all(led->dma_chan);
		dma_release_channel(led->dma_chan);
		led->dma_chan = NULL;
	}

	sunxi_ledc_irq_deinit(led);

	sunxi_unregister_led_classdev(led);
	sunxi_clk_deinit(led);

	led_regulator_release(led);

	kfree(led->output_mode.str);
	led->output_mode.str = NULL;

	iounmap(led->iomem_reg_base);
	led->iomem_reg_base = NULL;

	release_mem_region(led->res->start, resource_size(led->res));

	kfree(led);
	led = NULL;

	dprintk(DEBUG_INIT, "finish\n");
	return 0;
}

#if IS_ENABLED(CONFIG_PM)
static inline void sunxi_led_save_regs(struct sunxi_led *led)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(sunxi_led_regs_offset); i++)
		led->regs_backup[i] = readl(led->iomem_reg_base + sunxi_led_regs_offset[i]);
}

static inline void sunxi_led_restore_regs(struct sunxi_led *led)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(sunxi_led_regs_offset); i++)
		writel(led->regs_backup[i], led->iomem_reg_base + sunxi_led_regs_offset[i]);
}

static void sunxi_led_enable_irq(struct sunxi_led *led)
{
	enable_irq(led->irqnum);
}

static void sunxi_led_disable_irq(struct sunxi_led *led)
{
	disable_irq_nosync(led->irqnum);
}

static int sunxi_led_gpio_state_select(struct sunxi_led *led, char *name)
{
	int err;
	struct pinctrl_state *pctrl_state;

	pctrl_state = pinctrl_lookup_state(led->pctrl, name);
	if (IS_ERR(pctrl_state)) {
		dev_err(led->dev, "pinctrl_lookup_state(%s) failed! return %p\n",
				name, pctrl_state);
		return PTR_ERR(pctrl_state);
	}

	err = pinctrl_select_state(led->pctrl, pctrl_state);
	if (err < 0) {
		dev_err(led->dev, "pinctrl_select_state(%s) failed! return %d\n",
				name, err);
		return err;
	}

	return 0;
}

static void sunxi_led_enable_clk(struct sunxi_led *led)
{
	clk_prepare_enable(led->clk_ledc);
	clk_prepare_enable(led->clk_cpuapb);
}

static void sunxi_led_disable_clk(struct sunxi_led *led)
{
	clk_disable_unprepare(led->clk_cpuapb);
	clk_disable_unprepare(led->clk_ledc);
}

static int sunxi_led_power_on(struct sunxi_led *led)
{
	int err;

	if (led->regulator == NULL)
		return 0;

	err = regulator_enable(led->regulator);
	if (err) {
		dev_err(led->dev, "enable regulator %s failed!\n", led->regulator_id);
		return err;
	}
	return 0;
}

static int sunxi_led_power_off(struct sunxi_led *led)
{
	int err;

	if (led->regulator == NULL)
		return 0;

	err = regulator_disable(led->regulator);
	if (err) {
		dev_err(led->dev, "disable regulator %s failed!\n", led->regulator_id);
		return err;
	}
	return 0;
}

static int sunxi_led_suspend(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct sunxi_led *led = platform_get_drvdata(pdev);

	dev_dbg(led->dev, "[%s] enter standby\n", __func__);

	sunxi_led_disable_irq(led);

	sunxi_led_save_regs(led);

	sunxi_led_gpio_state_select(led, PINCTRL_STATE_SLEEP);

	sunxi_led_disable_clk(led);

	reset_control_assert(led->reset);

	sunxi_led_power_off(led);

	return 0;
}

static int sunxi_led_resume(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct sunxi_led *led = platform_get_drvdata(pdev);

	dev_dbg(led->dev, "[%s] return from standby\n", __func__);

	sunxi_led_power_on(led);

	reset_control_deassert(led->reset);

	sunxi_led_enable_clk(led);

	sunxi_led_gpio_state_select(led, PINCTRL_STATE_DEFAULT);

	sunxi_led_restore_regs(led);

	sunxi_led_enable_irq(led);

	return 0;
}

static const struct dev_pm_ops sunxi_led_pm_ops = {
	.suspend = sunxi_led_suspend,
	.resume = sunxi_led_resume,
};

#define SUNXI_LED_PM_OPS (&sunxi_led_pm_ops)
#endif

static const struct of_device_id sunxi_led_dt_ids[] = {
	{.compatible = "allwinner,sunxi-leds"},
	{},
};

static struct platform_driver sunxi_led_driver = {
	.probe		= sunxi_led_probe,
	.remove		= sunxi_led_remove,
	.driver		= {
		.name	= "sunxi-leds",
		.owner	= THIS_MODULE,
#if IS_ENABLED(CONFIG_PM)
		.pm	= SUNXI_LED_PM_OPS,
#endif
		.of_match_table = sunxi_led_dt_ids,
	},
};

module_platform_driver(sunxi_led_driver);
module_param_named(debug, debug_mask, int, 0664);

MODULE_ALIAS("sunxi leds dirver");
MODULE_ALIAS("platform : leds dirver");
MODULE_LICENSE("GPL v2");
MODULE_VERSION("1.2.3");
MODULE_AUTHOR("Albert Yu <yuxyun@allwinnertech.com>");
MODULE_AUTHOR("liuyu <SWCliuyus@allwinnertech.com>");
MODULE_DESCRIPTION("Allwinner ledc-controller driver");

请更新 leds-sunxi.c 修复了 LEDC DMA相关功能

awwwwa

https://r128.docs.aw-ol.com/r128/chip_info/#gpio

awwwwa

@kanken6174 上拉是1.8V吗，还是上拉到3.3v了

awwwwa

@pandali 检查LCD的rst引脚是否配置错误导致屏幕被rst

awwwwa

@leomini5 我这边没有D1s的板卡，在T113上测试通过，测试1024颗灯，这个可能是RV才有的bug？

awwwwa

@oneofzero 删除这两个文件可以用吗

awwwwa

@alb702 在 V853 SDK : PMU TWI 中说：

[267]ic cant match axp, please check...

V853 和 V853s 的芯片安全系统验证不一样，SDK不能通用，这行输出表示芯片型号验证失败，跳过初始化DRAM

awwwwa

@hgs1975 This is not a error, you can normal boot up while showing this error. What's your hardware and how to configure it

awwwwa

Makefile:68: *** missing separator. Stop.

这个错误通常表示在 Makefile 的第 68 行或附近存在语法错误。Makefile 中使用的规则必须遵循严格的缩进规范，通常是使用 Tab 键进行缩进，而不是空格。

请检查 Makefile 第 68 行附近的代码，确保每个规则的命令部分都以 Tab 键开头，并且规则名称和命令之间使用冒号（:）分隔。此外，还需要确认 Makefile 的每一行都是使用相同的缩进方式，要么都是 Tab，要么都是空格，不要混用。

awwwwa

@tianya000180 v0.9版本R128 SDK已修复，不是报错只是使用错误可以无视

awwwwa

打入这个补丁试一下：de88083d-a6c8-403e-947c-81ccd05dc849-0001-fix-add-ENABLE_HARDFP-options.patch

0001-feat-Support-e907-core-boot-up.patch

可能是不同编译器导致的

awwwwa

target/allwinner/t113-nezha/base-files
target/allwinner/t113-nezha/busybox-init-base-files

根据选择的overlay方式而定

awwwwa

默认HDMI不开，需要命令开启

cd /sys/kernel/debug/dispdbg
echo disp0 > name; echo switch1 > command; echo 4 10 0 0 0x4 0x101 0 0 0 8 > param; echo 1 > start;

awwwwa

https://r128.docs.aw-ol.com/others/faq/#_3

建议删除 PMU 相关配置

[pmu]
pmu_irq_pin      = port:PA14<14><0><default><default>
pmu_irq_wakeup   = 2
pmu_hot_shutdown = 1
pmu_bat_unused = 0
pmu_usbad_vol = 4600
pmu_usbad_cur = 1500
pmu_usbpc_vol = 4600
pmu_usbpc_cur = 500
pmu_chg_ic_temp = 0
pmu_battery_rdc = 100
pmu_battery_cap = 3568
pmu_runtime_chgcur = 900
pmu_suspend_chgcur = 1200
pmu_shutdown_chgcur = 1200
pmu_init_chgvol = 4200
pmu_init_chg_pretime = 50
pmu_init_chg_csttime = 1200
pmu_chgled_type = 0
pmu_init_bc_en = 1
pmu_bat_temp_enable = 0
pmu_bat_charge_ltf = 2261
pmu_bat_charge_htf = 388
pmu_bat_shutdown_ltf = 3200
pmu_bat_shutdown_htf = 237
pmu_bat_para[0] = 0
pmu_bat_para[1] = 0
pmu_bat_para[2] = 0
pmu_bat_para[3] = 0
pmu_bat_para[4] = 0
pmu_bat_para[5] = 0
pmu_bat_para[6] = 1
pmu_bat_para[7] = 1
pmu_bat_para[8] = 2
pmu_bat_para[9] = 4
pmu_bat_para[10] = 5
pmu_bat_para[11] = 12
pmu_bat_para[12] = 19
pmu_bat_para[13] = 32
pmu_bat_para[14] = 41
pmu_bat_para[15] = 45
pmu_bat_para[16] = 48
pmu_bat_para[17] = 51
pmu_bat_para[18] = 54
pmu_bat_para[19] = 59
pmu_bat_para[20] = 63
pmu_bat_para[21] = 68
pmu_bat_para[22] = 71
pmu_bat_para[23] = 74
pmu_bat_para[24] = 78
pmu_bat_para[25] = 81
pmu_bat_para[26] = 82
pmu_bat_para[27] = 84
pmu_bat_para[28] = 88
pmu_bat_para[29] = 92
pmu_bat_para[30] = 96
pmu_bat_para[31] = 100
pmu_bat_temp_para[0] = 7466
pmu_bat_temp_para[1] = 4480
pmu_bat_temp_para[2] = 3518
pmu_bat_temp_para[3] = 2786
pmu_bat_temp_para[4] = 2223
pmu_bat_temp_para[5] = 1788
pmu_bat_temp_para[6] = 1448
pmu_bat_temp_para[7] = 969
pmu_bat_temp_para[8] = 664
pmu_bat_temp_para[9] = 466
pmu_bat_temp_para[10] = 393
pmu_bat_temp_para[11] = 333
pmu_bat_temp_para[12] = 283
pmu_bat_temp_para[13] = 242
pmu_bat_temp_para[14] = 179
pmu_bat_temp_para[15] = 134

awwwwa

helloworld_fel 使用了 VFP 寄存器参数，但是某个库文件(libgcc.a(_udivmoddi4.o))却不支持。
缺少 .note.GNU-stack 段，暗示可执行栈缺失。
对于具有 RWX 权限的 LOAD 段，给出了警告。
在链接时，出现了对 raise 函数的未定义引用。

awwwwa

docker 没有正确安装配置

awwwwa

默认没有密码，加密码需要配置下

awwwwa

请贴出编译日志。

awwwwa

（1）在线模式：四个vipp和dma实体，最大缩小比例为16*16，每路最多可支持16个orl
（2）离线模式：每个vipp和dma可分时复用为4个vipp和dma虚拟体，四个vipp和dma实体相互独立，在线模式和离线模式开关也是相互独立的；
（3）VIPP和DAM的分时复用（离线模式）与isp和tdm的分时复用（离线模式）是绑定关系，即tdm和isp开启了离线模式，vipp和dma的输入端如果是isp，那么vipp和dma也需要开启离线模式；
（4）只有VIPP0和dma0实体支持VE在线编码，而vipp0在线，如果vipp00的输入端为isp，那么tdm和isp也只能配置在线模式，而isp在线，那么四个vipp和dma实体都只能配置在线模式；

online 和 offline 配置方式在 board.dts ，所以需要在对应版型的 board.dts 中找到 vind0 节点配置列表，对应关系为 tdm 对应节点， isp 对应 isp00 节点， vipp 对应 scaler00 、 scaler10 、 scaler20 和 scaler30 节点， dma 对，应 vinc00 、 vinc10 、 vinc20 和 vinc30 节点。

在线模式，单路3输出

离线模式，2路8输出

awwwwa

旋转需要大量的计算，会导致出现帧率问题，可以尝试关闭抗锯齿，使用NEON加速计算

awwwwa

OpenWRT会重写kernel部分的配置，具体请参考OpenWRT文档

awwwwa

RI-2020.5-linux 编译器需要向购买开发板的商家/代理提交申请，需要提供自己的HIFI5 DSP Xtensa Xplorer的证明

awwwwa

找到 env.cfg


#kernel command arguments
earlyprintk=sunxi-uart,0x02500000
initcall_debug=0
console=ttyS0,115200
consolefb=tty0
nand_root=ubi0_4
mmc_root=/dev/mmcblk0p4
nor_root=/dev/mtdblock1
init=/init
loglevel=8
coherent_pool=16K
#reserve_list=30M@64M,78M@128M,200M@512M
mac=
wifi_mac=
bt_mac=
specialstr=
root_partition=rootfs
mtd_name=sys
rootfstype=ubifs, rw
#set kernel cmdline if boot.img or recovery.img has no cmdline we will use this
setargs_nor=setenv bootargs  earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} console=${console—fb} loglevel=${loglevel} root=${nor_root} rootwait init=${init} rdinit=${rdinit} partitions=${partitions} cma=${cma} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
setargs_nand=setenv bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} console=${console—fb} loglevel=${loglevel}  ubi.mtd=${mtd_name} root=${nand_root} rootfstype=${rootfstype} rootwait init=${init} rdinit=${rdinit} partitions=${partitions} cma=${cma} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} selinux=${selinux} specialstr=${specialstr} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
setargs_nand_ubi=setenv bootargs ubi.mtd=${mtd_name} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} console=${console—fb} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_mmc=setenv  bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} console=${console—fb} loglevel=${loglevel} root=${mmc_root}  rootwait init=${init} partitions=${partitions} cma=${cma} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} selinux=${selinux} specialstr=${specialstr} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
#nand command syntax: sunxi_flash read address partition_name read_bytes
#0x4007f800 = 0x40080000(kernel entry) - 0x800(boot.img header 2k)
boot_partition=boot
boot_normal=sunxi_flash read 44800000 ${boot_partition};bootm 44800000
boot_recovery=sunxi_flash read 44800000 extend;bootm 44800000
boot_fastboot=fastboot
#recovery key
recovery_key_value_max=0x13
recovery_key_value_min=0x10
#fastboot key
fastboot_key_value_max=0x8
fastboot_key_value_min=0x2

#uboot system env config
bootdelay=1
#default bootcmd, will change at runtime according to key press
bootcmd=run setargs_nand boot_normal#default nand boot
#verify the kernel
verify=N

awwwwa

    static lv_style_t style_scr_act;
    if (style_scr_act.prop_cnt == 0) {
        lv_style_init(&style_scr_act);
        lv_style_set_bg_opa(&style_scr_act, LV_OPA_COVER);
        lv_obj_add_style(lv_scr_act(), &style_scr_act, 0);
    }
    lv_disp_get_default()->driver->screen_transp = 1;
    lv_disp_set_bg_opa(lv_disp_get_default(), LV_OPA_TRANSP);
    /* Empty the buffer, not emptying will cause the UI to be opaque */
    lv_memset_00(lv_disp_get_default()->driver->draw_buf->buf_act,
    lv_disp_get_default()->driver->draw_buf->size * sizeof(lv_color32_t));
    lv_style_set_bg_opa(&style_scr_act, LV_OPA_TRANSP);
    lv_obj_report_style_change(&style_scr_act);

设置透明层

awwwwa

@yilan7805 看上去解压工具链压缩文件有损坏，重新下载一下？

awwwwa

@l1878980638

https://www.aw-ol.com/downloads?cat=5

awwwwa 发布的最佳帖子