Firefly开源社区

标题: 持续记录-菜鸟I2S驱动开发 [打印本页]

作者: moker 时间: 2016-4-16 10:33
标题: 持续记录-菜鸟I2S驱动开发
昨天刚拿到RK3288-Reload的开发板，今天正好有时间就来折腾下。
目前的任务是:
以前做了一块FPGA的板子，能够与一块音频编解码的芯片通过I2S做到音频数据流的传输，现在的想法是直接用RK3288的板子来替换音频编码芯片，直接通过I2S总线进行录音。
总体计划:
因为对这个板子不太熟悉，预计一个星期时间，中间可能会遇到一些问题，希望大家多多指教，同时也希望这份记录能为后来人带来点参考。

目前已经给板子上电了，并且切换到了Ubuntu系统＾＿＾

内核和版本都是板子自带的

作者: moker 时间: 2016-4-16 10:51
mkbootimg 工具已经安装完成

获取内核源码和安装交叉编译工具链
直接git下，网速比较慢。

作者: 牛头 时间: 2016-4-16 11:40
:lol折腾起来吧~

作者: moker 时间: 2016-4-16 12:06
终于git下来完全了

下一步来安装Toolchain

现在有个疑问是:
我把耳机插在了phone孔上，怎么还是用HDMI的外音输出呢?
是不是要进了什么特别的设置?

作者: moker 时间: 2016-4-16 12:11

牛头发表于 2016-4-16 11:40
折腾起来吧~

作者: xyh666168 时间: 2016-4-16 12:42
不错，写一个系列的教程！

作者: moker 时间: 2016-4-16 12:57

感觉es8323启动中间异常了，有没有firefly的开发过来看下~

作者: moker 时间: 2016-4-16 12:58

xyh666168 发表于 2016-4-16 12:42
不错，写一个系列的教程！

教程谈不上，只是个记录，还希望各路大神过来指教

作者: moker 时间: 2016-4-16 13:58
OK，继续安装Toolchain，我把下载下来的文件解压复制到了/opt/Firefly文件夹下面：

现在添加进环境变量中:
vim ~/.bashrc

我比较喜欢这种方式添加环境变量
129行那个　$ARM_LINUX是以前玩其他开发板的时候添加的，可以省略
再执行下 source ~/.bashrc 让环境变量生效
设置好后的效果如下:

说明安装成功了

作者: moker 时间: 2016-4-17 10:29
继续来编译内核
现在内核根目录执行下make firefly-rk3288-linux_defconfig

看下默认的配置，如下:

看到使用的是ALSA音频系统，SoC的音频支持已经加入了ESP8323的支持
比较疑惑的是，在ES8323的下面，还有一个ES8323 for PCM modem，
不知道什么意思，求指教!
还有昨天耳机插上不能用，最后查出来ES8323驱动加载正常，只是和HDMI的声音有冲突。
插上HDMI线时，默认使用HDMI播放声音，再插入耳机，耳机也就没有反应了。
这个应该是个bug吧～
怎么见不到开发的人，不来论坛交流嘛（⊙＿⊙）？

masong@hydra: ~-Coding-learnUbuntu-firefly-rk3288-kernel_131.png (106.08 KB, 下载次数: 848)

作者: moker 时间: 2016-4-17 10:53
编译:
masong@hydra:~/Coding/learnUbuntu/firefly-rk3288-kernel$ make ARCH=arm CROSS_COMPILE=arm-eabi- -j8 firefly-rk3288.img

最后出现这样就说明编译成功了
  OBJCOPY arch/arm/boot/zImage
  Kernel: arch/arm/boot/zImage is ready
  Image:  kernel.img is ready
Pack to resource.img successed!
  Image:  resource.img (with firefly-rk3288.dtb logo.bmp) is ready

作者: 牛头 时间: 2016-4-18 09:49
你提出的es8323问题，我们会去跟进的。

作者: zouxf 时间: 2016-4-18 09:59
ES8323 和 HDMI 是两个声卡，如果你要验证ES8323是否正常，可以使用aplay来播放wav文件测试。

作者: zhansb 时间: 2016-4-18 11:26

moker 发表于 2016-4-16 12:57
感觉es8323启动中间异常了，有没有firefly的开发过来看下~

8323的驱动是android和ubuntu内核共用，create file失败是因为ubuntu没有/data目录，可以在probe中把路径改一下

作者: moker 时间: 2016-4-18 14:33

zouxf 发表于 2016-4-18 09:59
ES8323 和 HDMI 是两个声卡，如果你要验证ES8323是否正常，可以使用aplay来播放wav文件测试。

可以验证es8323驱动是正常的，只是插上HDMI的线，会优先使用HDMI播放声音，当去除掉HDMI线时，耳机声音就正常了。

作者: moker 时间: 2016-4-19 14:14
感觉音频es8323这块的问题好大
昨天查看的启动信息补全，完全的是这样的
root@firefly:~# dmesg |grep 8323
[ 1.190306] ES8323 2-0010: Error applying setting, reverse things back
[ 1.190606] es8323 probe i2c recv ok
[ 1.192087] es8323_probe
[ 1.192175] es8323_probe:register ISR (irq=194)
[ 1.825600] ES8323 2-0010: ASoC: no dapm match for LINPUT1 --> NULL --> Left Line Mux
[ 1.825623] ES8323 2-0010: ASoC: Failed to add route LINPUT1 -> NULL -> Left Line Mux
[ 1.825638] ES8323 2-0010: ASoC: no dapm match for LINPUT2 --> NULL --> Left Line Mux
[ 1.825652] ES8323 2-0010: ASoC: Failed to add route LINPUT2 -> NULL -> Left Line Mux
[ 1.825666] ES8323 2-0010: ASoC: no dapm match for Left PGA Mux --> NULL --> Left Line Mux
[ 1.825679] ES8323 2-0010: ASoC: Failed to add route Left PGA Mux -> NULL -> Left Line Mux
[ 1.825694] ES8323 2-0010: ASoC: no dapm match for RINPUT1 --> NULL --> Right Line Mux
[ 1.825706] ES8323 2-0010: ASoC: Failed to add route RINPUT1 -> NULL -> Right Line Mux
[ 1.825720] ES8323 2-0010: ASoC: no dapm match for RINPUT2 --> NULL --> Right Line Mux
[ 1.825733] ES8323 2-0010: ASoC: Failed to add route RINPUT2 -> NULL -> Right Line Mux
[ 1.825747] ES8323 2-0010: ASoC: no dapm match for Right PGA Mux --> NULL --> Right Line Mux
[ 1.825760] ES8323 2-0010: ASoC: Failed to add route Right PGA Mux -> NULL -> Right Line Mux
[ 1.825775] ES8323 2-0010: ASoC: no dapm match for LINPUT1 --> LAMP --> Left PGA Mux
[ 1.825787] ES8323 2-0010: ASoC: Failed to add route LINPUT1 -> LAMP -> Left PGA Mux
[ 1.825801] ES8323 2-0010: ASoC: no dapm match for LINPUT2 --> LAMP --> Left PGA Mux
[ 1.825814] ES8323 2-0010: ASoC: Failed to add route LINPUT2 -> LAMP -> Left PGA Mux
[ 1.825829] ES8323 2-0010: ASoC: no dapm match for Differential Mux --> LAMP --> Left PGA Mux
[ 1.825842] ES8323 2-0010: ASoC: Failed to add route Differential Mux -> LAMP -> Left PGA Mux
[ 1.825857] ES8323 2-0010: ASoC: no dapm match for RINPUT1 --> RAMP --> Right PGA Mux
[ 1.825870] ES8323 2-0010: ASoC: Failed to add route RINPUT1 -> RAMP -> Right PGA Mux
[ 1.825883] ES8323 2-0010: ASoC: no dapm match for RINPUT2 --> RAMP --> Right PGA Mux
[ 1.825897] ES8323 2-0010: ASoC: Failed to add route RINPUT2 -> RAMP -> Right PGA Mux
[ 1.825911] ES8323 2-0010: ASoC: no dapm match for Differential Mux --> RAMP --> Right PGA Mux
[ 1.825924] ES8323 2-0010: ASoC: Failed to add route Differential Mux -> RAMP -> Right PGA Mux
[ 1.825939] ES8323 2-0010: ASoC: no dapm match for LINPUT1 --> LAMP --> Differential Mux
[ 1.825952] ES8323 2-0010: ASoC: Failed to add route LINPUT1 -> LAMP -> Differential Mux
[ 1.825965] ES8323 2-0010: ASoC: no dapm match for RINPUT1 --> RAMP --> Differential Mux
[ 1.825978] ES8323 2-0010: ASoC: Failed to add route RINPUT1 -> RAMP -> Differential Mux
[ 1.825993] ES8323 2-0010: ASoC: no dapm match for LINPUT2 --> LAMP --> Differential Mux
[ 1.826005] ES8323 2-0010: ASoC: Failed to add route LINPUT2 -> LAMP -> Differential Mux
[ 1.826020] ES8323 2-0010: ASoC: no dapm match for RINPUT2 --> RAMP --> Differential Mux
[ 1.826032] ES8323 2-0010: ASoC: Failed to add route RINPUT2 -> RAMP -> Differential Mux
[ 1.826057] ES8323 2-0010: ASoC: no dapm match for LINPUT1 --> LAMP --> Left Line Mux
[ 1.826070] ES8323 2-0010: ASoC: Failed to add route LINPUT1 -> LAMP -> Left Line Mux
[ 1.826084] ES8323 2-0010: ASoC: no dapm match for LINPUT2 --> LAMP --> Left Line Mux
[ 1.826096] ES8323 2-0010: ASoC: Failed to add route LINPUT2 -> LAMP -> Left Line Mux
[ 1.826112] ES8323 2-0010: ASoC: no dapm match for Left PGA Mux --> LAMP --> Left Line Mux
[ 1.826124] ES8323 2-0010: ASoC: Failed to add route Left PGA Mux -> LAMP -> Left Line Mux
[ 1.826139] ES8323 2-0010: ASoC: no dapm match for RINPUT1 --> RAMP --> Right Line Mux
[ 1.826152] ES8323 2-0010: ASoC: Failed to add route RINPUT1 -> RAMP -> Right Line Mux
[ 1.826166] ES8323 2-0010: ASoC: no dapm match for RINPUT2 --> RAMP --> Right Line Mux
[ 1.826178] ES8323 2-0010: ASoC: Failed to add route RINPUT2 -> RAMP -> Right Line Mux
[ 1.826192] ES8323 2-0010: ASoC: no dapm match for Right PGA Mux --> RAMP --> Right Line Mux
[ 1.826204] ES8323 2-0010: ASoC: Failed to add route Right PGA Mux -> RAMP -> Right Line Mux
[ 1.826345] ES8323 2-0010: ASoC: mux Right Line Mux has no paths
[ 1.826360] ES8323 2-0010: ASoC: mux Left Line Mux has no paths
[ 1.826373] ES8323 2-0010: ASoC: mux Right PGA Mux has no paths
[ 1.826386] ES8323 2-0010: ASoC: mux Left PGA Mux has no paths
[ 1.826408] ES8323 2-0010: ASoC: mux Differential Mux has no paths
[ 1.832507] rockchip-es8323 rockchip-es8323.26: ES8323 HiFi <-> ff890000.rockchip-i2s mapping ok
[ 2.364435] #0: RK_ES8323
[ 9.077320] es8323_create file error

作者: moker 时间: 2016-4-19 14:28
写好的东西不能加载进去，直接使用阿sai的hello模块，使用insmod插入提示为:
root@firefly:~/Coding# insmod hello.ko
Segmentation fault

查看了下模块信息如下:
root@firefly:~/Coding# modinfo hello.ko
filename:    /root/Coding/hello.ko
license:       GPL
description: Firefly hello driver
author:       sai <271319925@qq.com>
depends:
intree:       Y
vermagic:    3.10.0 SMP preempt mod_unload ARMv7 p2v8

查看了下内核记录如下:
root@firefly:~/Coding# dmesg |grep Hello
[  809.210801] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 0
[  810.195044] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 1
[  811.179216] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 2
[  812.163363] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 3
[  813.147510] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 4
[  814.131688] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 5
[  815.115862] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 6
[  816.100016] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 7
[  817.084153] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 8
[  818.068297] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 9
[  819.052436] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 10
成功打印出来了。但是查看了下dmesg的信息，发现是这样的：
[  809.210801] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 0
[  810.195044] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 1
[  811.179216] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 2
[  812.163363] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 3
[  813.147510] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 4
[  814.131688] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 5
[  815.115862] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 6
[  816.100016] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 7
[  817.084153] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 8
[  818.068297] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 9
[  819.052436] ~~~~~~~~~~~~~~~~~~~~~~~~Hello world~~~~~~~~~~~~~~~~~~~~~~~~ 10
[  820.036660] Unable to handle kernel paging request at virtual address 0131d004
[  820.043734] pgd = dccec000
[  820.046331] [0131d004] *pgd=00000000
[  820.049848] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[  820.055031] Modules linked in: hello
[  820.058527] CPU: 1 PID: 1444 Comm: insmod Not tainted 3.10.0 #17
[  820.064405] task: dccd1a40 ti: de8ec000 task.ti: de8ec000
[  820.069752] PC is at module_put+0x38/0x10c
[  820.073739] LR is at do_init_module+0xf4/0x168
[  820.078054] pc : [<c00896b0>] lr : [<c0841a54>] psr: a0070013
[  820.078054] sp : de8edf28  ip : 00000000  fp : 00000000
[  820.089306] r10: 00000000  r9 : de8ec000  r8 : c0841a54
[  820.094424] r7 : 0000017b  r6 : b6ef8398  r5 : bf000094  r4 : bf000094
[  820.100819] r3 : de8ec000  r2 : 00000004  r1 : 0131d000  r0 : bf000094
[  820.107232] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[  820.114209] Control: 10c5387d  Table: 1ccec06a  DAC: 00000015
[  820.119843]
[  820.119843] PC: 0xc0089630:
[  820.124011] 9630  30d11003 33a03000 e3530000 1a000004 e1a01006 eb07b4ad e3500000 0a000007
[  820.132028] 9650  ea000003 e3520000 0a000004 e1a01002 eb07be06 e5940000 e3e0500d eb01b187
[  820.140044] 9670  e1a00005 e8bd8070 e92d41f0 e2505000 e1a0800e 08bd81f0 e1a0200d e3c23d7f
[  820.148061] 9690  e3c3303f e5932004 e2822001 e5832004 f57ff05a e595216c ee1d1f90 e2822004
[  820.156077] 96b0  e7910002 e2800001 e7810002 e59f20bc e5921018 e3510000 0a00001c e5931004
[  820.164093] 96d0  e2811001 e5831004 e5926024 e3560000 0a00000c e2867008 e1a04006 e5943000
[  820.172109] 96f0  e1a01005 e5940004 e1a02008 e2844008 e12fff33 e0663004 e0833007 e5133008
[  820.180126] 9710  e3530000 1afffff4 e1a0200d e3c23d7f e3c3303f e5932004 e2422001 e5832004
[  820.188146]
[  820.188146] LR: 0xc08419d4:
[  820.192320] 19d4  ebe121f7 e3a02000 e59f00d4 e3a01003 e1a03002 ea00002e 0a000006 e59f10c4
[  820.200337] 19f4  e284200c e1a03005 e59f00bc e58d1000 ebfff9f3 eb0024a0 e3a01000 e1a02004
[  820.208353] 1a14  e5841000 e59f0094 ebe065f3 e1a0200d e3c23d7f e3c3303f e593300c e593300c
[  820.216370] 1a34  e3130901 0a000000 ebe06a49 e59f007c e3a05000 eb0060e9 e1a00004 ebe11f08
[  820.224386] 1a54  e1a00004 ebe8df8b e594311c e59410c0 e1a00004 e5843118 e5943114 e5843110
[  820.232402] 1a74  e5943124 e5843120 ebe121ca e59f003c e58450c0 e58450c8 e58450d8 e58450d0
[  820.240419] 1a94  eb00603f e59f0018 e3a01003 e1a02005 e1a03005 ebe07404 e1a00005 e8bd807c
[  820.248435] 1ab4  c0c1ff48 c0c1ff3c c0861c58 c0a4f9f4 c0c1ff24 e1a03000 e59f00d4 e92d40f0
[  820.256455]
[  820.256455] SP: 0xde8edea8:
[  820.260630] dea8  fd640800 c05d39a8 de8edefc 00005dbf 00000006 00000000 c0d8d000 de8ec000
[  820.268646] dec8  00000000 c00896b0 a0070013 ffffffff de8edf14 c000d598 bf000094 0131d000
[  820.276663] dee8  00000004 de8ec000 bf000094 bf000094 b6ef8398 0000017b c0841a54 de8ec000
[  820.284679] df08  00000000 00000000 00000000 de8edf28 c0841a54 c00896b0 a0070013 ffffffff
[  820.292695] df28  bf000094 00000000 b6ef8398 0000017b c000db84 c0841a54 bf000094 00000000
[  820.300711] df48  00000000 00000003 b6ef8398 c008b048 e1a31000 00000ca7 e1a314b4 e1a313a1
[  820.308728] df68  e1a31ba4 000001fc 0000029c 00000000 00000000 00000000 00000017 00000018
[  820.316744] df88  0000000f 00000000 0000000c 00000000 be9d3504 be9d3684 5f434600 c000da00
[  820.324764]
[  820.324764] R3: 0xde8ebf80:
[  820.328939] bf80  de8ebf80 de8ebf80 00000000 00000000 de8ebf90 de8ebf90 de8ebfac de87bed0
[  820.336956] bfa0  c0056070 00000000 00000000 c000da98 00000000 00000000 00000000 00000000
[  820.344972] bfc0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  820.352988] bfe0  00000000 00000000 00000000 00000000 00000013 00000000 ffff5fff f8ffdffd
[  820.361004] c000  00000000 00000002 00000000 dccd1a40 c0c1c178 00000001 00000015 dccd1a40
[  820.369021] c020  c1f13cc0 de8ec000 c5b9f340 00000000 000000be de89c980 de8ede8c de8ede08
[  820.377037] c040  c085aba4 00000000 00000000 00000000 00000000 00000000 01000000 00000000
[  820.385054] c060  b6efe850 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  820.393070]
[  820.393070] R8: 0xc08419d4:
[  820.397249] 19d4  ebe121f7 e3a02000 e59f00d4 e3a01003 e1a03002 ea00002e 0a000006 e59f10c4
[  820.405265] 19f4  e284200c e1a03005 e59f00bc e58d1000 ebfff9f3 eb0024a0 e3a01000 e1a02004
[  820.413281] 1a14  e5841000 e59f0094 ebe065f3 e1a0200d e3c23d7f e3c3303f e593300c e593300c
[  820.421297] 1a34  e3130901 0a000000 ebe06a49 e59f007c e3a05000 eb0060e9 e1a00004 ebe11f08
[  820.429314] 1a54  e1a00004 ebe8df8b e594311c e59410c0 e1a00004 e5843118 e5943114 e5843110
[  820.437330] 1a74  e5943124 e5843120 ebe121ca e59f003c e58450c0 e58450c8 e58450d8 e58450d0
[  820.445347] 1a94  eb00603f e59f0018 e3a01003 e1a02005 e1a03005 ebe07404 e1a00005 e8bd807c
[  820.453363] 1ab4  c0c1ff48 c0c1ff3c c0861c58 c0a4f9f4 c0c1ff24 e1a03000 e59f00d4 e92d40f0
[  820.461380]
[  820.461380] R9: 0xde8ebf80:
[  820.465558] bf80  de8ebf80 de8ebf80 00000000 00000000 de8ebf90 de8ebf90 de8ebfac de87bed0
[  820.473574] bfa0  c0056070 00000000 00000000 c000da98 00000000 00000000 00000000 00000000
[  820.481590] bfc0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  820.489607] bfe0  00000000 00000000 00000000 00000000 00000013 00000000 ffff5fff f8ffdffd
[  820.497623] c000  00000000 00000002 00000000 dccd1a40 c0c1c178 00000001 00000015 dccd1a40
[  820.505639] c020  c1f13cc0 de8ec000 c5b9f340 00000000 000000be de89c980 de8ede8c de8ede08
[  820.513656] c040  c085aba4 00000000 00000000 00000000 00000000 00000000 01000000 00000000
[  820.521672] c060  b6efe850 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  820.529690] Process insmod (pid: 1444, stack limit = 0xde8ec238)
[  820.535577] Stack: (0xde8edf28 to 0xde8ee000)
[  820.539845] df20:                bf000094 00000000 b6ef8398 0000017b c000db84 c0841a54
[  820.547856] df40: bf000094 00000000 00000000 00000003 b6ef8398 c008b048 e1a31000 00000ca7
[  820.555872] df60: e1a314b4 e1a313a1 e1a31ba4 000001fc 0000029c 00000000 00000000 00000000
[  820.563888] df80: 00000017 00000018 0000000f 00000000 0000000c 00000000 be9d3504 be9d3684
[  820.571905] dfa0: 5f434600 c000da00 be9d3504 be9d3684 00000003 b6ef8398 00000000 00000000
[  820.579921] dfc0: be9d3504 be9d3684 5f434600 0000017b b6f04ea8 00000000 b6ef4b60 00000000
[  820.587937] dfe0: be9d34b0 be9d34a0 b6eef177 b6e5f982 80070030 00000003 440a2930 72637365
[  820.595993] [<c00896b0>] (module_put+0x38/0x10c) from [<c0841a54>] (do_init_module+0xf4/0x168)
[  820.604427] [<c0841a54>] (do_init_module+0xf4/0x168) from [<c008b048>] (SyS_finit_module+0x6c/0x94)
[  820.613314] [<c008b048>] (SyS_finit_module+0x6c/0x94) from [<c000da00>] (ret_fast_syscall+0x0/0x30)
[  820.622139] Code: f57ff05a e595216c ee1d1f90 e2822004 (e7910002)
[  820.628152] ---[ end trace a4f74d77999ba5be ]---

作者: moker 时间: 2016-4-19 14:28
谁来帮我解释下，一个printk就快要把我给搞疯掉!!!

作者: 牛头 时间: 2016-4-19 14:36
.ko你自己编译的吗？不要用现成的.ko，在自己的内核里编译出来。

作者: moker 时间: 2016-4-19 14:42

牛头发表于 2016-4-19 14:36
.ko你自己编译的吗？不要用现成的.ko，在自己的内核里编译出来。

ko是自己编译起来的，并且我也把编译好的kernel.img下载到开发板里面了

作者: moker 时间: 2016-4-19 14:49

牛头发表于 2016-4-19 14:36
.ko你自己编译的吗？不要用现成的.ko，在自己的内核里编译出来。

我的编译器版本是:gcc version 4.6.x-google 20120106 (prerelease) (GCC)
使用的内核源码是这一份:git clone https://bitbucket.org/T-Firefly/firefly-rk3288-kernel.git
然后ubuntu系统是，机器发来自带的。只往里面烧了编译好的内核。

作者: moker 时间: 2016-4-19 15:29
在做点灯的实验时候，也是led能够亮完全没有问题，等到modules_init()结束后，就发生了错误:
错误和helloworld的实验是相同的。
[ 308.881654] Unable to handle kernel paging request at virtual address 0131d004

作者: 牛头 时间: 2016-4-19 16:02
下个完整的SDK，工具链用SDK里的，会少一些麻烦

作者: 暴走的阿Sai 时间: 2016-4-25 09:32

moker 发表于 2016-4-19 14:28
谁来帮我解释下，一个printk就快要把我给搞疯掉!!!

.ko最好是在本机编译的

作者: moker 时间: 2016-5-3 16:04

zhansb 发表于 2016-4-18 11:26
8323的驱动是android和ubuntu内核共用，create file失败是因为ubuntu没有/data目录，可以在probe中把路径 ...

具体指的是哪个probe?

作者: pqy 时间: 2016-5-3 23:28

moker 发表于 2016-5-3 16:04
具体指的是哪个probe?

cd sound/soc
grep "/data" . -rn不就出来啦:lol

作者: moker 时间: 2016-5-6 11:15

pqy 发表于 2016-5-3 23:28
cd sound/soc
grep "/data" . -rn不就出来啦

soga~

作者: moker 时间: 2016-5-6 11:16
masong@hydra:~/Coding/learnUbuntu/firefly-rk3288-kernel/sound/soc$ grep "/data" . -rn
Binary file ./codecs/es8323.o matches
Binary file ./codecs/snd-soc-es8323.o matches
Binary file ./codecs/built-in.o matches
./codecs/es8323.c:1387: fp = filp_open("/data/es8323_mic_state", O_RDWR | O_CREAT, 0666);
Binary file ./built-in.o matches
./sh/ssi.c:187: /*ssicr |= CR_PDTA;*/ /* cpu/data endianness ? */

作者: 数据驱动世界 时间: 2023-6-29 11:26

moker 发表于 2016-4-16 12:57
感觉es8323启动中间异常了，有没有firefly的开发过来看下~

这个是什么问题呢

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