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请教一个关于AM1808音频部分的问题：音频接口和音频芯片都是按照TI官方评估板的设计，驱动加载也正常，但是用aplay测试音频的时候，确没有声音输出，用示波器测试MCASP的I2S接口，三个时钟线输出正常，唯独两根数据线没有任何数据，只是在刚开始播放的时候，电平发生了变化，请问有谁也遇到同样的问题么？该怎么解决?
错误提示如下：
root@am180x-evm:~# aplay /hehe.wav Playing WAVE '/hehe.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo aplay: pcm_write:1682: write error: Input/output error
你可以用不带操作系统的 Sitarware里的驱动先测试一下，processors.wiki.ti.com/.../SitaraWare。
看硬件是否是正常的。这个driver就是直接配寄存器，会比较直观和简单。
首先感谢您的回答和帮助。Jing Cui 说：你可以用不带操作系统的 Sitarware里的驱动先测试一下，processors.wiki.ti.com/.../SitaraWare。
看硬件是否是正常的。这个driver就是直接配寄存器，会比较直观和简单。
我用官方提供的BSL配合CCSV4，仿真测试了AUDIO接口，I2S数据线是有方波输出的，但是换用官方提供的LINUX内核，且没改变源码，把和音频冲突的无线模块也取消了，用APLAY命令播放，依旧提示错误。时钟线正常，唯独数据线没有数据。
Tony Tang 说：三个时钟信号的频率各是多少？
同样的测试在评估板上可以通过吗？
我用的测试音频的采样率是8000Hz
三个时钟线的频率分别是：MCLK=24.5755MHz ， BCLK=255.995KHz ， WCLK=7.9998KHz.
唯独数据线上没有波形。TI官方的评估板我这里没有，唉。
今天跟踪了一下程序的执行过程，用"aplay -N"(非阻塞方式)命令播放音频文件，内核最后一直执行 davinci_pcm_pointer()这个函数，直到出现那个pcm错误。如果用"aplay"命令播放，则运行到davinci_pcm_pointer()这个函数后就卡死了，然后出现错误。
这是控制台的相关信息(带 ">>>>>>>>>>>>>>>>>>>>>" 符号的表示执行了该行所指的函数):
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.33-rc4 (root@jay) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #3 PREEMPT Fri Sep 2 13:53:53 CST 2011
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: DaVinci DA850/OMAP-L138/AM18xx EVM
Memory policy: ECC disabled, Data cache writeback
DaVinci da850/omap-l138/am18xx variant 0x1
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
Kernel command line: console=ttyS2,115200n8 noinitrd rw ip=192.168.14.2:192.168.14.50:192.168.14.254:255.255.255.0 root=/dev/nfs nfsroot=192.168.14.50:/nfs,proto=tcp,nolock mem=128M
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 128MB = 128MB total
Memory: 125524KB available (3776K code, 305K data, 140K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:245
Console: colour dummy device 80x30
Calibrating delay loop... 227.73 BogoMIPS (lpj=1138688)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
DaVinci: 144 gpio irqs
NET: Registered protocol family 16
MUX: initialized GPIO1_4
MUX: Setting register GPIO1_4
PINMUX4 (0x00000010) = 0x00222288 -> 0x00228288
MUX: initialized GPIO1_5
MUX: Setting register GPIO1_5
PINMUX4 (0x00000010) = 0x00228288 -> 0x00228888
MUX: initialized UART1_RXD
MUX: Setting register UART1_RXD
PINMUX4 (0x00000010) = 0x00228888 -> 0x02228888
MUX: initialized UART1_TXD
MUX: Setting register UART1_TXD
PINMUX4 (0x00000010) = 0x02228888 -> 0x22228888
MUX: initialized AHCLKX
MUX: Setting register AHCLKX
PINMUX0 (0x00000000) = 0x44000000 -> 0x44100000
MUX: initialized ACLKX
MUX: Setting register ACLKX
PINMUX0 (0x00000000) = 0x44100000 -> 0x44100010
MUX: initialized AFSX
MUX: Setting register AFSX
PINMUX0 (0x00000000) = 0x44100010 -> 0x44101010
MUX: initialized ACLKR
MUX: Setting register ACLKR
PINMUX0 (0x00000000) = 0x44101010 -> 0x44101011
MUX: initialized AFSR
MUX: Setting register AFSR
PINMUX0 (0x00000000) = 0x44101011 -> 0x44101111
MUX: initialized AMUTE
MUX: Setting register AMUTE
PINMUX0 (0x00000000) = 0x44101111 -> 0x41101111
MUX: initialized AXR_11
MUX: Setting register AXR_11
PINMUX1 (0x00000004) = 0x00000000 -> 0x00010000
MUX: initialized AXR_12
MUX: Setting register AXR_12
PINMUX1 (0x00000004) = 0x00010000 -> 0x00011000
MUX: initialized LCD_D_0
MUX: Setting register LCD_D_0
PINMUX17 (0x00000044) = 0x00000000 -> 0x00000020
MUX: initialized LCD_D_1
MUX: Setting register LCD_D_1
PINMUX17 (0x00000044) = 0x00000020 -> 0x00000022
MUX: initialized LCD_D_2
MUX: Setting register LCD_D_2
PINMUX16 (0x00000040) = 0x00000000 -> 0x20000000
MUX: initialized LCD_D_3
MUX: Setting register LCD_D_3
PINMUX16 (0x00000040) = 0x20000000 -> 0x22000000
MUX: initialized LCD_D_4
MUX: Setting register LCD_D_4
PINMUX16 (0x00000040) = 0x22000000 -> 0x22200000
MUX: initialized LCD_D_5
MUX: Setting register LCD_D_5
PINMUX16 (0x00000040) = 0x22200000 -> 0x22220000
MUX: initialized LCD_D_6
MUX: Setting register LCD_D_6
PINMUX16 (0x00000040) = 0x22220000 -> 0x22222000
MUX: initialized LCD_D_7
MUX: Setting register LCD_D_7
PINMUX16 (0x00000040) = 0x22222000 -> 0x22222200
MUX: initialized LCD_D_8
MUX: Setting register LCD_D_8
PINMUX18 (0x00000048) = 0x00000000 -> 0x00000020
MUX: initialized LCD_D_9
MUX: Setting register LCD_D_9
PINMUX18 (0x00000048) = 0x00000020 -> 0x00000022
MUX: initialized LCD_D_10
MUX: Setting register LCD_D_10
PINMUX17 (0x00000044) = 0x00000022 -> 0x20000022
MUX: initialized LCD_D_11
MUX: Setting register LCD_D_11
PINMUX17 (0x00000044) = 0x20000022 -> 0x22000022
MUX: initialized LCD_D_12
MUX: Setting register LCD_D_12
PINMUX17 (0x00000044) = 0x22000022 -> 0x22200022
MUX: initialized LCD_D_13
MUX: Setting register LCD_D_13
PINMUX17 (0x00000044) = 0x22200022 -> 0x22220022
MUX: initialized LCD_D_14
MUX: Setting register LCD_D_14
PINMUX17 (0x00000044) = 0x22220022 -> 0x22222022
MUX: initialized LCD_D_15
MUX: Setting register LCD_D_15
PINMUX17 (0x00000044) = 0x22222022 -> 0x22222222
MUX: initialized LCD_PCLK
MUX: Setting register LCD_PCLK
PINMUX18 (0x00000048) = 0x00000022 -> 0x02000022
MUX: initialized LCD_MCLK
MUX: Setting register LCD_MCLK
PINMUX18 (0x00000048) = 0x02000022 -> 0x22000022
MUX: initialized LCD_HSYNC
MUX: Setting register LCD_HSYNC
PINMUX19 (0x0000004c) = 0x00000000 -> 0x00000002
MUX: initialized LCD_VSYNC
MUX: Setting register LCD_VSYNC
PINMUX19 (0x0000004c) = 0x00000002 -> 0x00000022
MUX: initialized NLCD_AC_ENB_CS
MUX: Setting register NLCD_AC_ENB_CS
PINMUX19 (0x0000004c) = 0x00000022 -> 0x02000022
MUX: initialized GPIO2_8
MUX: Setting register GPIO2_8
PINMUX5 (0x00000014) = 0x00110110 -> 0x80110110
MUX: initialized GPIO2_15
MUX: Setting register GPIO2_15
PINMUX5 (0x00000014) = 0x80110110 -> 0x80110118
MUX: initialized RTC_ALARM
MUX: Setting register RTC_ALARM
PINMUX0 (0x00000000) = 0x41101111 -> 0x21101111
MUX: initialized GPIO2_4
MUX: Setting register GPIO2_4
PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
MUX: initialized GPIO6_13
MUX: Setting register GPIO6_13
PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
pca953x 1-0020: failed reading register
i2c-gpio i2c-gpio.1: using pins 20 (SDA) and 21 (SCL)
Switching to clocksource timer0_1
musb_hdrc: version 6.0, cppi4.1-dma, host, debug=0
Waiting for USB PHY clock good...
musb_hdrc: USB Host mode controller at fee00000 using DMA, IRQ 58
musb_hdrc musb_hdrc: MUSB HDRC host driver
musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
EMAC: MII PHY configured, RMII PHY will not be functional
MUX: initialized GPIO2_6
MUX: Setting register GPIO2_6
PINMUX6 (0x00000018) = 0x00008000 -> 0x00008080
JFFS2 version 2.2. (NAND) 漏 2001-2006 Red Hat, Inc.
msgmni has been set to 245
io scheduler noop registered (default)
da8xx_lcdc da8xx_lcdc.0: GLCD: Found Sharp_LK043T1DG01 panel
Console: switching to colour frame buffer device 60x34
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25) is a AR7
serial8250.0: ttyS1 at MMIO 0x1d0c000 (irq = 53) is a AR7
serial8250.0: ttyS2 at MMIO 0x1d0d000 (irq = 61) is a AR7
console [ttyS2] enabled
brd: module loaded
spi_davinci spi_davinci.1: DaVinci SPI driver in EDMA mode
Using RX channel = 18 , TX channel = 19 and event queue = 1
m25p80 spi1.0: non-JEDEC variant of m25p64
m25p80 spi1.0: m25p64 (8192 Kbytes)
Creating 4 MTD partitions on "m25p80":
0x000000000000-0x000000040000 : "U-Boot"
0x000000040000-0x000000050000 : "U-Boot Environment"
0x000000050000-0x0000007f0000 : "Linux"
0x0000007f0000-0x000000800000 : "MAC Address"
Read MAC addr from EEPROM: 00:00:00:00:00:00
spi_davinci spi_davinci.1: Controller at 0xfef0e000
console [netcon0] enabled
netconsole: network logging started
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci ohci.0: DA8xx OHCI
ohci ohci.0: new USB bus registered, assigned bus number 2
ohci ohci.0: irq 59, io mem 0x01e25000
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
omap_rtc: RTC power up reset detected
i2c /dev entries driver
Linux video capture interface: v2.00
watchdog watchdog: heartbeat 60 sec
cpuidle: using governor ladder
cpuidle: using governor menu
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
Advanced Linux Sound Architecture Driver Version 1.0.21.
usbcore: registered new interface driver snd-usb-audio
No device for DAI tlv320aic3x
>>>>>>> davinci-mcasp.c : davinci_mcasp_init() :
>>>>>>> davinci-mcasp.c : davinci_mcasp_probe() :
>>>>>>> davinci-evm.c: evm_init :
>>>>>>> davinci-pcm.c : davinci_pcm_new() :
>>>>>>> davinci-pcm.c : davinci_pcm_preallocate_dma_buffer() :
>>>>>>> davinci-pcm.c : davinci_pcm_preallocate_dma_buffer() :
asoc: tlv320aic3x <-> davinci-i2s mapping ok
>>>>>>> davinci-evm.c : evm_aic3x_init():
ALSA device list:
#0: DA850/OMAP-L138 EVM (tlv320aic3x)
TCP cubic registered
NET: Registered protocol family 17
Clocks: disable unused emac
Clocks: disable unused mmcsd
Clocks: disable unused aemif
davinci_emac_probe: using random MAC addr: 66:ce:50:a3:86:04
emac-mii: probed
omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
usb 2-1: new full speed USB device using ohci and address 2
hub 2-1:1.0: USB hub found
hub 2-1:1.0: 4 ports detected
IP-Config: Complete:
device=eth0, addr=192.168.14.2, mask=255.255.255.0, gw=192.168.14.254,
host=192.168.14.2, domain=, nis-domain=(none),
bootserver=192.168.14.50, rootserver=192.168.14.50, rootpath=
Looking up port of RPC 100003/2 on 192.168.14.50
Looking up port of RPC 100005/1 on 192.168.14.50
VFS: Mounted root (nfs filesystem) on device 0:13.
Freeing init memory: 140K
INIT: version 2.86 booting
Please wait: booting...
Starting udev
udev: starting version 141
Remounting root file system...
Caching udev devnodes
Populating dev cachemv: cannot rename '/tmp/devices': No such file or directory
logger: mount: mount point /proc/bus/usb does not exist
ALSA: Restoring mixer settings...
NOT configuring network interfaces: / is an NFS mount
No state is present for card EVM
Found hardware: "tlv320aic3x" "" "" "" ""
Hardware is initialized using a generic method
No state is present for card EVM
Thu Jul 7 13:19:00 UTC 2011
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting telnet daemon.
Starting syslogd/klogd: done
Starting thttpd.
Arago Project http://arago-project.org am180x-evm ttyS2
Arago 2011.06 am180x-evm ttyS2
am180x-evm login: root
root@am180x-evm:~# aplay -v /hehe.wav
>>>>>>> davinci-pcm.c : davinci_pcm_open() :
>>>>>>> davinci-pcm.c : allocate_sram() :
>>>>>>> davinci-pcm.c : davinci_pcm_dma_request() :
Playing WAVE '/hehe.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo
>>>>>>> davinci-evm.c : evm_hw_params():
>>>>>>> davinci-mcasp.c : davinci_mcasp_set_dai_fmt() :
>>>>>>> davinci-mcasp.c : davinci_mcasp_hw_params() :
>>>>>>> davinci-mcasp.c : davinci_hw_common_param() :
>>>>>>> davinci-mcasp.c : davinci_hw_param() :
>>>>>>> davinci-mcasp.c : davinci_config_channel_size():
>>>>>>> davinci-pcm.c : davinci_pcm_hw_params() :
>>>>>>> davinci-pcm.c : davinci_pcm_prepare() :
>>>>>>> davinci-pcm.c : davinci_pcm_enqueue_dma() :
>>>>>>> davinci-pcm.c : davinci_pcm_enqueue_dma() :
Plug PCM: Hardware PCM card 0 'DA850/OMAP-L138 EVM' device 0 subdevice 0
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat : STD
channels : 2
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 16000
period_size : 1000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min : 1000
period_event : 0
start_threshold : 16000
stop_threshold : 16000
silence_threshold: 0
silence_size : 0
boundary : 2097152000
appl_ptr : 0
hw_ptr : 0
>>>>>>> davinci-pcm.c : davinci_pcm_trigger() :
>>>>>>> davinci-mcasp.c : davinci_mcasp_trigger() :
>>>>>>> davinci-mcasp.c : davinci_mcasp_start() :
>>>>>>> davinci-mcasp.c : mcasp_start_tx() :
>>>>>>> davinci-pcm.c : davinci_pcm_pointer() :
>>>>>>> davinci-pcm.c : davinci_pcm_pointer() :
>>>>>>> davinci-pcm.c : davinci_pcm_pointer() :
aplay: pcm_write
>>>>>>> davinci-pcm.c : davinci_pcm_trigger() :
>>>>>>> davinci-mcasp.c : davinci_mcasp_trigger() :
>>>>>>> davinci-mcasp.c : davinci_mcasp_stop() :
>>>>>>> davinci-mcasp.c : mcasp_stop_tx() :
:1682: write error: Input/output
>>>>>>> davinci-pcm.c : davinci_pcm_hw_free() :
error
>>>>>>> davinci-pcm.c : davinci_pcm_hw_free() :
>>>>>>> davinci-pcm.c : davinci_pcm_close() :
root@am180x-evm:~#
Dear Jay
这个问题，是不是有进展？是不是解决了?能否交流一下。谢谢。
我们也遇到类似问题。
目前我们调试TLv320AIC3104，无法成功播放，有错误如下。
playback write error (DMA or IRQ trouble?)
aplay: pcm_write:1710: write error: Input/output error
我们怀疑是不是DMA方面配置问题，请指导一下。谢谢。
详细log 见后面。
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
[ 0.000000] Linux version 3.2.0 (zhouqun@zhouqun) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-5
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: am335xevm
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] AM335X ES2.1 (sgx neon )
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: at arch/arm/mach-omap2/clkt_clksel.c:194 omap2_clksel_recalc+0xc8/0x134()
[ 0.000000] clock: Could not find fieldval 0 for clock dpll_core_m6_ck parent dpll_core_x2_ck
[ 0.000000] Modules linked in:
[ 0.000000] Backtrace:
[ 0.000000] [<c0017dbc>] (dump_backtrace+0x0/0x10c) from [<c0401004>] (dump_stack+0x18/0x1c)
[ 0.000000] r6:c0030b28 r5:00000009 r4:c05bbe78 r3:c05dca8c
[ 0.000000] [<c0400fec>] (dump_stack+0x0/0x1c) from [<c003e4a4>] (warn_slowpath_common+0x54/0x6c)
[ 0.000000] [<c003e450>] (warn_slowpath_common+0x0/0x6c) from [<c003e560>] (warn_slowpath_fmt+0x38/0x40)
[ 0.000000] r8:80000200 r7:c0636e64 r6:00000000 r5:c05cec38 r4:00000000
[ 0.000000] r3:00000009
[ 0.000000] [<c003e528>] (warn_slowpath_fmt+0x0/0x40) from [<c0030b28>] (omap2_clksel_recalc+0xc8/0x134)
[ 0.000000] r3:00000000 r2:c04ec8cc
[ 0.000000] [<c0030a60>] (omap2_clksel_recalc+0x0/0x134) from [<c0034a34>] (propagate_rate+0x34/0x54)
[ 0.000000] r6:c0636e9c r5:c05ceb38 r4:c05cec38
[ 0.000000] [<c0034a00>] (propagate_rate+0x0/0x54) from [<c0034a40>] (propagate_rate+0x40/0x54)
[ 0.000000] r5:c05ceadc r4:c05ceb24
[ 0.000000] [<c0034a00>] (propagate_rate+0x0/0x54) from [<c0034a40>] (propagate_rate+0x40/0x54)
[ 0.000000] r5:c05cea24 r4:c05ceac8
[ 0.000000] [<c0034a00>] (propagate_rate+0x0/0x54) from [<c0034a40>] (propagate_rate+0x40/0x54)
[ 0.000000] r5:c05ce910 r4:c05cea10
[ 0.000000] [<c0034a00>] (propagate_rate+0x0/0x54) from [<c0034ba4>] (recalculate_root_clocks+0x40/0x58)
[ 0.000000] r5:c05dc1e4 r4:c05ce8fc
[ 0.000000] [<c0034b64>] (recalculate_root_clocks+0x0/0x58) from [<c058cbd8>] (am33xx_clk_init+0x84/0xa0)
[ 0.000000] r5:c05ce78c r4:c05ce78c
[ 0.000000] [<c058cb54>] (am33xx_clk_init+0x0/0xa0) from [<c058c920>] (omap3xxx_clk_init+0xe0/0x314)
[ 0.000000] r5:c0a51040 r4:00003517
[ 0.000000] [<c058c840>] (omap3xxx_clk_init+0x0/0x314) from [<c05865b8>] (am33xx_init_early+0x3c/0x40)
[ 0.000000] r7:c0636e64 r6:c0636e9c r5:c0a51040 r4:c05ac1c0
[ 0.000000] [<c058657c>] (am33xx_init_early+0x0/0x40) from [<c0582de0>] (setup_arch+0x714/0x804)
[ 0.000000] [<c05826cc>] (setup_arch+0x0/0x804) from [<c057f5a4>] (start_kernel+0x78/0x2dc)
[ 0.000000] [<c057f52c>] (start_kernel+0x0/0x2dc) from [<80008040>] (0x80008040)
[ 0.000000] r6:c05ad630 r5:c05bc084 r4:10c53c7d
[ 0.000000] ---[ end trace 1b75b31a2719ed1c ]---
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext3 rootwait ip=none
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 512MB = 512MB total
[ 0.000000] Memory: 513288k/513288k available, 11000k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc057f000 (5596 kB)
[ 0.000000] .init : 0xc057f000 - 0xc05ba000 ( 236 kB)
[ 0.000000] .data : 0xc05ba000 - 0xc06213f0 ( 413 kB)
[ 0.000000] .bss : 0xc0621414 - 0xc064ffe4 ( 187 kB)
[ 0.000000] NR_IRQS:396
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz
[ 0.000000] OMAP clocksource: GPTIMER1 at 32768 Hz
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000305] Calibrating delay loop... 298.59 BogoMIPS (lpj=1492992)
[ 0.067657] pid_max: default: 32768 minimum: 301
[ 0.067932] Security Framework initialized
[ 0.068115] Mount-cache hash table entries: 512
[ 0.068817] CPU: Testing write buffer coherency: ok
[ 0.096435] omap_hwmod: pruss: failed to hardreset
[ 0.098632] print_constraints: dummy:
[ 0.099395] NET: Registered protocol family 16
[ 0.103881] OMAP GPIO hardware version 0.1
[ 0.109771] omap_mux_init: Add partition: #1: core, flags: 0
[ 0.113952] omap_i2c.1: alias fck already exists
[ 0.115814] omap2_mcspi.1: alias fck already exists
[ 0.116302] omap2_mcspi.2: alias fck already exists
[ 0.118438] edma.0: alias fck already exists
[ 0.118469] edma.0: alias fck already exists
[ 0.118530] edma.0: alias fck already exists
[ 0.181427] bio: create slab <bio-0> at 0
[ 0.186218] SCSI subsystem initialized
[ 0.189727] usbcore: registered new interface driver usbfs
[ 0.190429] usbcore: registered new interface driver hub
[ 0.190856] usbcore: registered new device driver usb
[ 0.192657] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
[ 0.195709] tps65910 1-002d: could not be detected
[ 0.198730] Advanced Linux Sound Architecture Driver Version 1.0.24.
[ 0.201110] Switching to clocksource gp timer
[ 0.237182] NET: Registered protocol family 2
[ 0.237548] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.238159] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.238861] TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.239288] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.239318] TCP reno registered
[ 0.239318] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.239379] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.239837] NET: Registered protocol family 1
[ 0.240356] RPC: Registered named UNIX socket transport module.
[ 0.240386] RPC: Registered udp transport module.
[ 0.240386] RPC: Registered tcp transport module.
[ 0.240417] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.240905] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.272216] VFS: Disk quotas dquot_6.5.2
[ 0.272338] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.273437] msgmni has been set to 1002
[ 0.279846] alg: No test for stdrng (krng)
[ 0.281127] io scheduler noop registered
[ 0.281158] io scheduler deadline registered
[ 0.281372] io scheduler cfq registered (default)
[ 0.283691] Could not set LED4 to fully on
[ 0.286956] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
[ 0.966827] console [ttyO0] enabled
[ 0.971618] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
[ 0.980072] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
[ 0.988525] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
[ 0.996887] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
[ 1.005249] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
[ 1.014587] omap4_rng omap4_rng: OMAP4 Random Number Generator ver. 2.00
[ 1.043029] brd: module loaded
[ 1.057373] loop: module loaded
[ 1.061096] i2c-core: driver [tsl2550] using legacy suspend method
[ 1.067749] i2c-core: driver [tsl2550] using legacy resume method
[ 1.074371] at24 1-0051: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 1.141723] No daughter card found
[ 1.145416] at24 1-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 1.154968] The board is a AM335x Beaglebone Black.
[ 1.161193] Cannot clk_get ck_32
[ 1.164825] ++++++++pin_mux:xdma_event_intr1.clkout2
[ 1.172180] tps65217 1-0024: TPS65217 ID 0xe version 1.2
[ 1.180725] print_constraints: DCDC1: 900 <--> 1800 mV at 1500 mV
[ 1.190307] print_constraints: DCDC2: 900 <--> 3300 mV at 1100 mV
[ 1.199829] print_constraints: DCDC3: 900 <--> 1500 mV at 1100 mV
[ 1.209320] print_constraints: LDO1: 1000 <--> 3300 mV at 1800 mV
[ 1.218719] print_constraints: LDO2: 900 <--> 3300 mV at 3300 mV
[ 1.228027] print_constraints: LDO3: 1800 <--> 3300 mV at 1800 mV
[ 1.237426] print_constraints: LDO4: 1800 <--> 3300 mV at 3300 mV
[ 1.244720] ++++++++pin_mux:mii1_rxerr.mii1_rxerr
[ 1.249755] ++++++++pin_mux:mii1_txen.mii1_txen
[ 1.254608] ++++++++pin_mux:mii1_rxdv.mii1_rxdv
[ 1.259429] ++++++++pin_mux:mii1_txd3.mii1_txd3
[ 1.264282] ++++++++pin_mux:mii1_txd2.mii1_txd2
[ 1.269104] ++++++++pin_mux:mii1_txd1.mii1_txd1
[ 1.273956] ++++++++pin_mux:mii1_txd0.mii1_txd0
[ 1.278778] ++++++++pin_mux:mii1_txclk.mii1_txclk
[ 1.283813] ++++++++pin_mux:mii1_rxclk.mii1_rxclk
[ 1.288818] ++++++++pin_mux:mii1_rxd3.mii1_rxd3
[ 1.293670] ++++++++pin_mux:mii1_rxd2.mii1_rxd2
[ 1.298492] ++++++++pin_mux:mii1_rxd1.mii1_rxd1
[ 1.303344] ++++++++pin_mux:mii1_rxd0.mii1_rxd0
[ 1.308166] ++++++++pin_mux:mdio_data.mdio_data
[ 1.313018] ++++++++pin_mux:mdio_clk.mdio_clk
[ 1.317657] ++++++++pin_mux:usb0_drvvbus.usb0_drvvbus
[ 1.323059] ++++++++pin_mux:usb1_drvvbus.usb1_drvvbus
[ 1.328460] ++++++++pin_mux:mcasp0_ahclkx.mcasp0_ahclkx
[ 1.334014] ++++++++pin_mux:mcasp0_aclkx.mcasp0_aclkx
[ 1.339416] ++++++++pin_mux:mcasp0_fsx.mcasp0_fsx
[ 1.344421] ++++++++pin_mux:mcasp0_axr0.mcasp0_axr0
[ 1.349609] ++++++++pin_mux:mcasp0_axr1.mcasp0_axr1
[ 1.354827] +++++++zhouqun mcasp0_init : 6
[ 1.359344] davinci-mcasp.0: alias fck already exists
[ 1.365539] ++++++++pin_mux:gpmc_ad3.mmc1_dat3
[ 1.370269] ++++++++pin_mux:gpmc_ad2.mmc1_dat2
[ 1.375091] ++++++++pin_mux:gpmc_ad1.mmc1_dat1
[ 1.379821] ++++++++pin_mux:gpmc_ad0.mmc1_dat0
[ 1.384582] ++++++++pin_mux:gpmc_csn1.mmc1_clk
[ 1.389343] ++++++++pin_mux:gpmc_csn2.mmc1_cmd
[ 1.394104] ++++++++pin_mux:gpmc_ad7.mmc1_dat7
[ 1.398834] ++++++++pin_mux:gpmc_ad6.mmc1_dat6
[ 1.403594] ++++++++pin_mux:gpmc_ad5.mmc1_dat5
[ 1.408325] ++++++++pin_mux:gpmc_ad4.mmc1_dat4
[ 1.413085] ++++++++pin_mux:mmc0_dat3.mmc0_dat3
[ 1.417907] ++++++++pin_mux:mmc0_dat2.mmc0_dat2
[ 1.422729] ++++++++pin_mux:mmc0_dat1.mmc0_dat1
[ 1.427581] ++++++++pin_mux:mmc0_dat0.mmc0_dat0
[ 1.432403] ++++++++pin_mux:mmc0_clk.mmc0_clk
[ 1.437042] ++++++++pin_mux:mmc0_cmd.mmc0_cmd
[ 1.441680] ++++++++pin_mux:spi0_cs1.gpio0_6
[ 1.446258] ++++++++pin_mux:mcasp0_aclkr.gpio3_18
[ 1.451354] omap_hsmmc.0: alias fck already exists
[ 1.457183] omap_hsmmc.1: alias fck already exists
[ 1.462890] ++++zhouqun i2c2_init
[ 1.466491] ++++++++pin_mux:uart1_ctsn.i2c2_sda
[ 1.471313] ++++++++pin_mux:uart1_rtsn.i2c2_scl
[ 1.476226] omap_i2c.3: alias fck already exists
[ 1.481933] omap_i2c omap_i2c.3: bus 3 rev2.4.0 at 100 kHz
[ 1.492065] registered am33xx_sr device
[ 1.500030] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.507812] omap2-nand driver initializing
[ 1.512603] OneNAND driver initializing
[ 1.519470] CAN device driver interface
[ 1.523590] CAN bus driver for Bosch D_CAN controller 1.0
[ 1.571807] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
[ 1.578369] davinci_mdio davinci_mdio.0: detected phy mask fffffffe
[ 1.586273] davinci_mdio.0: probed
[ 1.589904] davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver SMSC LAN8710/LAN8720
[ 1.599334] usbcore: registered new interface driver zd1201
[ 1.605682] usbcore: registered new interface driver cdc_ether
[ 1.612274] usbcore: registered new interface driver cdc_eem
[ 1.618591] usbcore: registered new interface driver dm9601
[ 1.624633] cdc_ncm: 04-Aug-2011
[ 1.628417] usbcore: registered new interface driver cdc_ncm
[ 1.634460] Initializing USB Mass Storage driver...
[ 1.640014] usbcore: registered new interface driver usb-storage
[ 1.646423] USB Mass Storage support registered.
[ 1.653045] mousedev: PS/2 mouse device common for all mice
[ 1.661163] omap_rtc am33xx-rtc: rtc core: registered am33xx-rtc as rtc0
[ 1.668823] i2c /dev entries driver
[ 1.673980] Linux video capture interface: v2.00
[ 1.679565] usbcore: registered new interface driver uvcvideo
[ 1.685729] USB Video Class driver (1.1.1)
[ 1.694274] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 1.703155] cpuidle: using governor ladder
[ 1.708648] cpuidle: using governor menu
[ 1.718353] omap4_aes_mod_init: loading AM33X AES driver
[ 1.724243] omap4-aes omap4-aes: AM33X AES hw accel rev: 3.02
[ 1.731353] omap4_aes_probe: probe() done
[ 1.736389] omap4_sham_mod_init: loading AM33X SHA/MD5 driver
[ 1.742767] omap4-sham omap4-sham: AM33X SHA/MD5 hw accel rev: 4.03
[ 1.765686] omap4_sham_probe: probe() done
[ 1.775634] usbcore: registered new interface driver usbhid
[ 1.781555] usbhid: USB HID core driver
[ 1.787536] usbcore: registered new interface driver snd-usb-audio
[ 1.795837] +++++++++++++++zhouqun aic3x_i2c_probe
[ 1.800933] control_type = SND_SOC_I2C
[ 1.805023] ++++++snd_soc_register_codec:0
[ 1.809417] +++++++++++++++zhouqun aic3x_i2c_probe
[ 1.814544] control_type = SND_SOC_I2C
[ 1.818542] ++++++snd_soc_register_codec:0
[ 1.823272] ++++++++zhouqun:snd_davinci_pcm_init
[ 1.828338] +++++++zhouqun:davinci_soc_platform_probe
[ 1.834136] ++++++++++++++++zhouqun:davinci_mcasp_init
[ 1.834136] ++++++++++++++==zhouqun : davinci_mcasp_probe
[ 1.846038] +++++++zhouqun :evm_init
[ 1.849914] ++++zhouqun am335x_evm?
[ 1.855377] ++++++++++soc_bind_dai_link
[ 1.859436] ++++++++zhouqun:binding TLV320AIC3X at idx 0
[ 1.865356] +++++++++++++++ aic3x_probe
[ 1.869445] ++++++++++++zhouqun <-aic3x_init
[ 1.873992] +++++++zhouqun:aic3x_init
[ 1.877899] +++++zhouqun:AIC3X_ASD_INTF_CTRLA (before)= 0
[ 1.883697] +++++zhouqun:AIC3X_ASD_INTF_CTRLA (after) = 10
[ 1.889495] +++++zhouqun:AIC3X_ASD_INTF_CTRLB (before) = 0
[ 1.895324] +++++zhouqun:AIC3X_ASD_INTF_CTRLB (after) = 20
[ 1.901153] +++++++zhouqun :LDAC_VOL = af
[ 1.905426] +++++++zhouqun:RDAC_VOL = af
[ 1.909606] ++++++++++++zhouqun aic3x_init->
[ 1.915802] ++++++++++++++aic3x_probe FINISHED
[ 1.925415] +++++zhouqun:evm_aic3x_init
[ 1.930053] ++++++++++zhouqun :davinci_pcm_new
[ 1.934814] ++++++++zhouqun:davinci_pcm_preallocate_dma_buffer
[ 1.941497] ++++++++zhouqun:davinci_pcm_preallocate_dma_buffer
[ 1.948150] asoc: tlv320aic3x-hifi <-> davinci-mcasp.0 mapping ok
[ 1.957611] ALSA device list:
[ 1.960784] #0: AM335X EVM
[ 1.963897] oprofile: hardware counters not available
[ 1.969238] oprofile: using timer interrupt.
[ 1.973846] nf_conntrack version 0.5.0 (8020 buckets, 32080 max)
[ 1.981292] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1.987213] TCP cubic registered
[ 1.990661] NET: Registered protocol family 17
[ 1.995422] can: controller area network core (rev 20090105 abi 8)
[ 2.002197] NET: Registered protocol family 29
[ 2.006896] can: raw protocol (rev 20090105)
[ 2.011444] can: broadcast manager protocol (rev 20090105 t)
[ 2.017547] Registering the dns_resolver key type
[ 2.022705] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 2.030853] ThumbEE CPU extension supported.
[ 2.035522] mux: Failed to setup hwmod io irq -22
[ 2.041931] Power Management for AM33XX family
[ 2.046966] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[ 2.053924] Copied the M3 firmware to UMEM
[ 2.058410] Cortex M3 Firmware Version = 0x181
[ 2.064575] create_regulator: DCDC2: Failed to create debugfs directory
[ 2.072631] smartreflex smartreflex: am33xx_sr_probe: Driver initialized
[ 2.088409] clock: disabling unused clocks to save power
[ 2.126007] Detected MACID=d0:5f:b8:fc:3:d0
[ 2.132720] cpsw: Detected MACID = d0:5f:b8:fc:03:d2
[ 2.140228] omap_rtc am33xx-rtc: setting system clock to 2000-01-01 00:00:01 UTC (946684801)
[ 2.150207] Waiting for root device /dev/mmcblk0p2...
[ 2.161254] mmc1: new high speed MMC card at address 0001
[ 2.168212] mmcblk0: mmc1:0001 S10004 3.56 GiB
[ 2.173309] mmcblk0boot0: mmc1:0001 S10004 partition 1 4.00 MiB
[ 2.179840] mmcblk0boot1: mmc1:0001 S10004 partition 2 4.00 MiB
[ 2.188354] mmcblk0: p1 p2
[ 2.196746] mmcblk0boot1: unknown partition table
[ 2.206024] mmcblk0boot0: unknown partition table
[ 2.265747] EXT3-fs (mmcblk0p2): recovery required on readonly filesystem
[ 2.273010] EXT3-fs (mmcblk0p2): write access will be enabled during recovery
[ 3.001464] kjournald starting. Commit interval 5 seconds
[ 3.007507] EXT3-fs (mmcblk0p2): recovery complete
[ 3.017364] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode
[ 3.024810] VFS: Mounted root (ext3 filesystem) readonly on device 179:2.
[ 3.033050] Freeing init memory: 236K
INIT: version 2.88 booting
Error opening /dev/fb0: No such device
Starting udev
Starting Bootlog daemon: bootlogd: cannot allocate pseudo tty: No such file or directory
bootlogd.
[ 9.453826] EXT3-fs (mmcblk0p2): using internal journal
ALSA: Restoring mixer settings...
No state is present for card EVM
Found hardware: "AM335X_EVM" "" "" "" ""
Hardware is initialized using a generic method
No state is present for card EVM
Configuring network interfaces... [ 10.664855] net eth0: CPSW phy found : id is : 0x7c0f1
udhcpc (v1.20.2) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing
done.
Tue Jun 25 23:09:00 UTC 2013
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting Dropbear SSH server: dropbear.
Starting telnet daemon.
Performing wifi calibration...
rm: can't remove '/lib/firmware/ti-connectivity/wl1271-nvs.bin': No such file or directory
Error: Module wl12xx_sdio is not currently loaded
nl80211 not found.
[ 20.734954] Disabling lock debugging due to kernel taint
Starting network benchmark server: netserver.
Starting syslogd/klogd: done
Starting thttpd.
Starting Lighttpd Web Server: lighttpd.
2013-06-25 23:09:00: (log.c.166) server started
/
Starting Matrix GUI application.
ERROR: could not insert 'g_mass_storage': No such device
***************************************************************
***************************************************************
NOTICE: This file system contains the followin GPLv3 packages:
binutils-symlinks
binutils
gdbserver
If you do not wish to distribute GPLv3 components please remove
the above packages prior to distribution. This can be done using
the opkg remove command. i.e.:
opkg remove <package>
Where <package> is the name printed in the list above
NOTE: If the package is a dependency of another package you
will be notified of the dependent packages. You should
use the --force-removal-of-dependent-packages option to
also remove the dependent packages as well
***************************************************************
***************************************************************
Stopping Bootlog daemon: bootlogd.
_____ _____ _ _
| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_
| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_|
|___| |___|
Arago Project http://arago-project.org am335x-evm ttyO0
Arago 2013.05 am335x-evm ttyO0
am335x-evm login: root
root@am335x-evm:~# cd /test/
root@am335x-evm:/test# aplay 123.wav
[ 48.603729] +++++++++zhouqun:davinci_mcasp_startup
[ 48.608856] ++++++++zhouqun:davinci_pcm_open
[ 48.613433] +++++++zhouqun:allocate_sram
[ 48.617614] ++++++++zhouqun:davinci_pcm_dma_request
Playing WAVE '123.wav' : Signed 16 bit Little Endian, Rate 44100[ 48.632232] ++++++++zhouqun :davinci_mcasp_set_dai_fmt
Hz, Stereo
[ 48.638092] +++++++=zhouqun:daifmt :1000d++++++++++davinci_mcasp_hw_params
[ 48.647674] ++++++++++++zhouqun :davinci_hw_common_param
[ 48.653381] ++++++++zhouqun :davinci_hw_param
[ 48.657989] +++++zhouqun :davinci_config_channel_size
[ 48.663360] +++++++zhouqun:davinci_pcm_hw_params
[ 48.670501] +++++++++zhouqun:davinci_pcm_prepare
[ 48.675476] ++++++zhouqun:davinci_pcm_enqueue_dma
[ 48.680480] ++++++zhouqun:davinci_pcm_enqueue_dma
[ 48.686248] +++++++++zhouqun:aic3x_set_power
[ 48.716949] +++++++zhouqun:davinci_pcm_trigger
[ 48.721710] +++++++++zhouqun:pcm_cmd = 1
[ 48.725860] ++++++++++++zhouqun:davinci_mcasp_trigger
[ 48.731201] +++++++++zhouqun:mcasp_cmd = 1
[ 48.735565] +++++++++zhouuqn :davinci_mcasp_start
[ 48.740539] ++++++++++zhouqun:mcasp_start_tx
[ 48.745056] ++++++++zhouqun:mcasp_set_ctl_reg
[ 48.749664] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 48.755218] ++++++++zhouqun:mcasp_set_ctl_reg
[ 48.759826] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 48.765350] ++++++++zhouqun:mcasp_set_ctl_reg
[ 48.769989] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 48.775512] ++++++++zhouqun:mcasp_set_ctl_reg
[ 48.780120] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 48.785675] ++++++++zhouqun:mcasp_set_ctl_reg
[ 48.790283] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 48.848205] +++++zhouqun:davinci_pcm_pointer
aplay: pcm_write[ 58.843902] +++++++zhouqun:davinci_pcm_trigger
[ 58.849578] +++++++++zhouqun:pcm_cmd = 0
[ 58.853759] ++++++++++++zhouqun:davinci_mcasp_trigger
[ 58.859100] +++++++++zhouqun:mcasp_cmd = 0
[ 58.863464] ++++++++++++====zhouqun :davinci_mcasp_stop
[ 58.868988] ++++++++++++zhouqun: mcasp_stop_tx
:1710: write error: Input/output[ 58.875213] +++++++zhouqun:davinci_pcm_hw_free
error
[ 58.881286] +++++++zhouqun:davinci_pcm_hw_free
[ 58.887512] +++++++++++zhouqun:davinci_pcm_close
root@am335x-evm:/test# [ 63.895324] +++++++++zhouqun:aic3x_set_power
非阻塞式播放。
root@am335x-evm:/test# aplay -N 123.wav
[ 137.655334] +++++++++zhouqun:davinci_mcasp_startup
[ 137.660491] ++++++++zhouqun:davinci_pcm_open
[ 137.665100] +++++++zhouqun:allocate_sram
[ 137.669281] ++++++++zhouqun:davinci_pcm_dma_request
Playing WAVE '123.wav' : Signed 16 bit Little Endian, Rate 44100[ 137.682586] ++++++++zhouqun :davinci_mcasp_set_dai_fmt
Hz, Stereo
[ 137.688446] +++++++=zhouqun:daifmt :1000d++++++++++davinci_mcasp_hw_params
[ 137.698059] ++++++++++++zhouqun :davinci_hw_common_param
[ 137.703765] ++++++++zhouqun :davinci_hw_param
[ 137.708404] +++++zhouqun :davinci_config_channel_size
[ 137.713775] +++++++zhouqun:davinci_pcm_hw_params
[ 137.720886] +++++++++zhouqun:davinci_pcm_prepare
[ 137.725891] ++++++zhouqun:davinci_pcm_enqueue_dma
[ 137.730926] ++++++zhouqun:davinci_pcm_enqueue_dma
[ 137.736694] +++++++++zhouqun:aic3x_set_power
[ 137.760284] +++++++zhouqun:davinci_pcm_trigger
[ 137.765014] +++++++++zhouqun:pcm_cmd = 1
[ 137.769195] ++++++++++++zhouqun:davinci_mcasp_trigger
[ 137.774566] +++++++++zhouqun:mcasp_cmd = 1
[ 137.778900] +++++++++zhouuqn :davinci_mcasp_start
[ 137.783905] ++++++++++zhouqun:mcasp_start_tx
[ 137.788421] ++++++++zhouqun:mcasp_set_ctl_reg
[ 137.793060] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 137.798583] ++++++++zhouqun:mcasp_set_ctl_reg
[ 137.803192] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 137.808746] ++++++++zhouqun:mcasp_set_ctl_reg
[ 137.813385] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 137.818908] ++++++++zhouqun:mcasp_set_ctl_reg
[ 137.823516] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 137.829071] ++++++++zhouqun:mcasp_set_ctl_reg
[ 137.833709] +++++++++zhouqun:(mcasp_get_reg(regs) & val
[ 137.891021] +++++zhouqun:davinci_pcm_pointer
[ 137.996276] +++++zhouqun:davinci_pcm_pointer
[ 138.101104] +++++zhouqun:davinci_pcm_pointer
[ 138.206451] +++++zhouqun:davinci_pcm_pointer
[ 138.311187] +++++zhouqun:davinci_pcm_pointer
[ 138.416259] +++++zhouqun:davinci_pcm_pointer
[ 138.520996] +++++zhouqun:davinci_pcm_pointer
[ 138.625976] +++++zhouqun:davinci_pcm_pointer
[ 138.730682] +++++zhouqun:davinci_pcm_pointer
[ 138.835693] +++++zhouqun:davinci_pcm_pointer
[ 138.940429] +++++zhouqun:davinci_pcm_pointer
[ 139.045471] +++++zhouqun:davinci_pcm_pointer
[ 139.150177] +++++zhouqun:davinci_pcm_pointer
