[#5633] Power test with ad1836/ad1938, after rtc wake up, audio play error

Submitted By: Vivi Li

Open Date

2009-10-21 05:15:03 Close Date

2009-11-27 03:44:10

Priority:

Medium Assignee:

Barry Song

Status:

Closed Fixed In Release:

2010R1

Found In Release:

2010R1 Release:

Category:

Audio Board:

STAMP

Processor:

BF537 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Duplicate

Uboot version or rev.:

Toolchain version or rev.:

gcc4.1-09r1-rc9

App binary format:

N/A

Summary: Power test with ad1836/ad1938, after rtc wake up, audio play error

Details:

Power test with ad1836/ad1938 audio driver on bf537-stamp, after wake up from mem or standby, error message shows up when vrec|vplay. And alsa tool also can not work properly.

Bellow is the log for ad1836:

Linux version 2.6.31.4-ADI-2010R1-pre-svn7669 (test@uclinux50-bf537-ad9960-ad1836) (gcc version 4.1.2 (ADI svn)) #55 Tue Oct 20 9

bootconsole [early_shadow0] enabled

bootconsole [early_BFuart0] enabled

early printk enabled on early_BFuart0

Limiting kernel memory to 56MB due to anomaly 05000263

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x00127c90

rodata = 0x00127c90-0x001883d8

bss = 0x00189000-0x0019a30c

data = 0x0019a30c-0x001ac000

stack = 0x001aa000-0x001ac000

init = 0x001ac000-0x008f6000

available = 0x008f6000-0x037ff000

DMA Zone = 0x03e00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 0

Reset caused by Software reset

Compiled for ADSP-BF537 Rev 0.2

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 500 MHz core clock and 125 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

External memory: cacheable in instruction cache

Data Cache Enabled for CPU0

External memory: cacheable (write-back) in data cache

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 14223

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600 ip=10.100.4.50f

PID hash table entries: 256 (order: 8, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 47596k/65536k RAM, (7464k init code, 1179k kernel code, 529k data, 2048k dma, 6720k reserved)

NR_IRQS:98

Configuring Blackfin Priority Driven Interrupts

console [ttyBF0] enabled, bootconsole disabled

Calibrating delay loop... 997.37 BogoMIPS (lpj=1994752)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (16 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (36 KB free)

NET: Registered protocol family 16

Blackfin DMA Controller

stamp_init(): registering device resources

bio: create slab <bio-0> at 0

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

NET: Registered protocol family 1

msgmni has been set to 92

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

bfin-uart: Blackfin serial driver

bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART

brd: module loaded

bfin_mii_bus: probed

bfin_mac: attached PHY driver [SMSC LAN83C185] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=24)@sclk=125MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

bfin-wdt: initialized: timeout=20 sec (nowayout=0)

Advanced Linux Sound Architecture Driver Version 1.0.20.

ALSA device list:

No soundcards found.

TCP cubic registered

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1972-06-22 17:35:33 UTC (78082533)

IP-Config: Complete:

device=eth0, addr=10.100.4.50, mask=255.255.255.0, gw=10.100.4.174,

host=bf537-stamp, domain=, nis-domain=(none),

bootserver=10.100.4.174, rootserver=10.100.4.174, rootpath=

Freeing unused kernel memory: 7464k freed

dma_alloc_init: dma_page @ 0x0208b000 - 512 pages at 0x03e00000

_____________________________________

a8888b. / Welcome to the uClinux distribution \

d888888b. / _ _ \

8P"YP"Y88 / | | |_| __ __ (TM) |

8|o||o|88 _____/ | | _ ____ _ _ \ \/ / |

8' .88 \ | | | | _ \| | | | \ / |

8`._.' Y8. \ | |__ | | | | | |_| | / \ |

d/ `8b. \ \____||_|_| |_|\____|/_/\_\ |

dP . Y8b. \ For embedded processors including |

d8:' " `::88b \ the Analog Devices Blackfin /

d8" 'Y88b \___________________________________/

:8P ' :888

8a. : _a88P For further information, check out:

._/"Yaa_: .| 88P| - http://blackfin.uclinux.org/

\ YP" `| 8P `. - http://docs.blackfin.uclinux.org/

/ \.___.d| .' - http://www.uclinux.org/

`--..__)8888P`._.' jgs/a:f - http://www.analog.com/blackfin

Have a lot of fun...

BusyBox v1.15.2 (2009-10-20 13:18:46 CST) hush - the humble shell

root:/> PHY: 0:01 - Link is Up - 100/Full

root:/> version

kernel: Linux release 2.6.31.4-ADI-2010R1-pre-svn7669, build #55 Tue Oct 20 13:26:55 CST 2009

toolchain: bfin-linux-uclibc-gcc release gcc version 4.1.2 (ADI svn)

user-dist: release svn-9004, build #691 Tue Oct 20 13:22:23 CST 2009

root:/> modprobe snd_ad1836

dma rx:3 tx:4, err irq:45, regs:ffc00800

asoc: AD1836 <-> bf5xx-tdm mapping ok

root:/> tone

TONE: generating sine wave at 1000 Hz...

root:/> vrec -w -S -b 16 -s 48000 -t 5|vplay

Recording WAVE : 16 bit, Speed 48000 Hz Stereo ...

Playing WAVE : 16 bit, Speed 48000 Hz Stereo ...

root:/> arecord -t wav -c 2 -f S16_LE -r 48000 -d 5 |aplay

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

root:/>

root:/> rtcwake -s 15 -m mem

wakeup from "mem" at Thu Jun 22 17:36:28 1972

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.00 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

PHY: 0:01 - Link is Down

Restarting tasks ... done.

PHY: 0:01 - Link is Up - 100/Full

root:/>

root:/> vrec -w -S -b 16 -s 48000 -t 5|vplay

Recording WAVE : 16 bit, Speed 48000 Hz Stereo ...

Playing WAVE : 16 bit, Speed 48000 Hz Stereo ...

/dev/dsp: Input/output error

root:/>

root:/> arecord -t wav -c 2 -f S16_LE -r 48000 -d 5 |aplay

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

(It can not stop here until you press Ctrl+C)

Follow-ups

--- Vivi Li 2009-10-21 05:25:15

For AD1938 wake up from both mem/standby, I can always see error message

"/dev/dsp: Input/output error".

For AD1836 wake up from mem, I can always see error message "/dev/dsp:

Input/output error". Test result of standby mode is OK.

But I once see bellow error when wake up from standby and hard to reproduce

it.

root:/> rtcwake -s 15 -m standby

wakeup from "standby" at Thu Jun 22 17:42:51 1972

PM: Syncing filesystems ... done.

Freezing user space processes ... (elapsed 0.00 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

Restarting tasks ... done.

root:/> PHY: 0:01 - Link is Down

PHY: 0:01 - Link is Up - 100/Full

root:/> vrec -w -S -b 16 -s 48000 -t 5|vplay

Recording WAVE : 16 bit, Speed 48000 Hz Stereo ...

Playing WAVE : 16 bit, Speed 48000 Hz Stereo ...

tx dma is already stopped

sport status error: TUVF

root:/>

--- Barry Song 2009-11-10 23:55:54

This maybe be a hardware depending issue. soc-core resumes codec earlier than

CPU interface. If I make sport resume earlier than codec in TDM mode, then all

things get ok.

Index: sound/soc/soc-core.c

===================================================================

--- sound/soc/soc-core.c (revision 7773)

+++ sound/soc/soc-core.c (working copy)

@@ -726,6 +726,14 @@

if (cpu_dai->resume && cpu_dai->ac97_control)

cpu_dai->resume(cpu_dai);

}

+ for (i = 0; i < card->num_links; i++) {

+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;

+ if (cpu_dai->resume && !cpu_dai->ac97_control)

+ cpu_dai->resume(cpu_dai);

+ if (platform->resume)

+ platform->resume(cpu_dai);

+ }

if (codec_dev->resume)

codec_dev->resume(pdev);

@@ -747,15 +755,7 @@

if (dai->ops->digital_mute &&

dai->playback.active)

dai->ops->digital_mute(dai, 0);

}

- for (i = 0; i < card->num_links; i++) {

- struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;

- if (cpu_dai->resume && !cpu_dai->ac97_control)

- cpu_dai->resume(cpu_dai);

- if (platform->resume)

- platform->resume(cpu_dai);

- }

if (card->resume_post)

card->resume_post(pdev);

I will check with the maintainer for a normal fix.

--- Barry Song 2009-11-12 01:12:35

upstream has a plan about pm_link, which can help to define suspend/resume

order. Locally, isolate sync/clock signals from sport when it resumes.

--- Vivi Li 2009-11-15 23:40:58

The bug still exists on regression.

--- Barry Song 2009-11-16 02:25:23

Yes. It happens again.

My checkin 7789 fixed this bug, but my checkin 7795&7796 which plan to fix

another soc-core bug fires this bug again.

--- Barry Song 2009-11-16 23:03:12

Duplicate with [#5687].

I made a mistake before. The ad1836/ad1938 suspend bugs come from spi

suspend/resume bug in fact.

--- Vivi Li 2009-11-27 03:44:10

OK now.

Close it.

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