From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alnie Subject: Re: Issues w/ Creative Labs [SB X-Fi Xtreme Audio] CA0110-IBG Date: Sat, 07 Mar 2015 08:28:29 -0800 Message-ID: <54FB272D.1080004@comcast.net> References: <54F52C68.6010504@comcast.net> <54F5614C.9010402@comcast.net> <54F57D07.9020900@comcast.net> <54F62CDC.1010607@comcast.net> <54F66A0F.1050603@comcast.net> <54F6C9EC.3080100@comcast.net> <54FA38D4.6090206@comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from resqmta-po-12v.sys.comcast.net (resqmta-po-12v.sys.comcast.net [96.114.154.171]) by alsa0.perex.cz (Postfix) with ESMTP id 34C7F2605D0 for ; Sat, 7 Mar 2015 17:28:32 +0100 (CET) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Takashi Iwai Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On 03/06/2015 11:56 PM, Takashi Iwai wrote: > At Fri, 06 Mar 2015 15:31:32 -0800, > Alnie wrote: >> >> On 03/04/2015 01:35 AM, Takashi Iwai wrote: >>> At Wed, 04 Mar 2015 01:01:32 -0800, >>> Alnie wrote: >>>> >>>> >>>> >>>> On 03/04/2015 12:00 AM, Takashi Iwai wrote: >>>>> At Tue, 03 Mar 2015 18:12:31 -0800, >>>>> Alnie wrote: >>>>>> >>>>>>> My suggestion isn't about a compile option but that you add some debug >>>>>>> printk() calls manually around some codes. We need to know the value >>>>>>> written and read by azx_write*() and azx_read*() calls. Especially >>>>>>> the value read in pci_azx_read*() is more interesting. You can try to >>>>>>> modify sound/pci/hda/hda_intel.c and add a printk() to each >>>>>>> pci_azx_read*() function for printing the value to be returned. >>>>>>> Beware that this will likely flood many messages, so just try once. >>>>>>> >>>>>>> >>>>>>> Takashi >>>>>>> >>>>>> >>>>>> I can not find any reference to pci_azx_read in hda_intel.c >>>>> >>>>> You must be using a too old kernel, then. Please use the latest >>>>> kernel for debugging. >>>>> >>>>> >>>>> Takashi >>>>> >>>> >>>> Ok. I now have latest kernel. >>>> >>>> Here is a small portion... >>>> >>>> /* PCI register access. */ >>>> static void pci_azx_writel(u32 value, u32 __iomem *addr) >>>> { >>>> writel(value, addr); >>>> } >>>> >>>> static u32 pci_azx_readl(u32 __iomem *addr) >>>> { >>>> return readl(addr); >>>> } >>>> >>>> Can you show me how I can properly place printk without breaking things >>>> and produce relevant messages? >>> >>> Something like: >>> >>> static u32 pci_azx_readl(u32 __iomem *addr) >>> { >>> u32 val = readl(addr); >>> pr_info("XXX readl %p %x\n", addr, val); >>> return val; >>> } >>> >>> But since there are quite lots of accesses, it might be safer to use >>> the ratelimited version. Use like the following: >>> pr_info_ratelimited("XXX readl %p %x\n", addr, val); >>> >>> Also there are variants pci_azx_readw() and _readb(). >>> >>> >>> Takashi >>> >> >> >> Ok, I was only able to guess through the code for the read values. If >> you need write information too please show me how. >> here are the mods I made... >> >> /* PCI register access. */ >> static void pci_azx_writel(u32 value, u32 __iomem *addr) >> { >> writel(value, addr); >> } >> >> static u32 pci_azx_readl(u32 __iomem *addr) >> { >> u32 val = readl(addr); >> pr_info_ratelimited("XXX readl %p %x\n", addr, val); >> return val; >> } >> >> static void pci_azx_writew(u16 value, u16 __iomem *addr) >> { >> writew(value, addr); >> } >> >> static u16 pci_azx_readw(u16 __iomem *addr) >> { >> u16 val = readw(addr); >> pr_info_ratelimited("XXX readw %p %x\n", addr, val); >> return val; >> } >> >> static void pci_azx_writeb(u8 value, u8 __iomem *addr) >> { >> writeb(value, addr); >> } >> >> static u8 pci_azx_readb(u8 __iomem *addr) >> { >> u8 val = readb(addr); >> pr_info_ratelimited("XXX readb %p %x\n", addr, val); >> return val; >> } >> >> and i was able to produce this... >> >> dmesg | grep -i read >> [ 0.764102] tpm_tis 00:05: A TPM error (7) occurred attempting to >> read a pcr value >> [ 0.769674] Write protecting the kernel read-only data: 12288k >> [ 1.729952] sd 0:0:0:0: [sda] Write cache: enabled, read cache: >> enabled, doesn't support DPO or FUA >> [ 2.071100] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: >> enabled, doesn't support DPO or FUA >> [ 2.778875] EXT4-fs (sda5): INFO: recovery required on readonly >> filesystem >> [ 2.817982] EXT4-fs (sda5): orphan cleanup on readonly fs >> [ 4.662442] XXX readw ffffc90004f30000 4401 > > This reads good, but I thought you have two sound devices (onboard and > Creative)? If so, disable the onboard one via enable=0 option (if the > onboard one is assigned first). Otherwise the all good and bad > results are mixed up. > > > Takashi > I included options snd-hda-intel enable=0 index=0 This is dmesg output (1b is onboard)... dmesg | grep -i hda [ 3.700213] snd_hda_intel: probe of 0000:00:1b.0 failed with error -2 [ 37.729507] snd_hda_intel 0000:06:00.0: enabling device (0000 -> 0002) [ 37.729703] snd_hda_intel 0000:06:00.0: enabling bus mastering [ 37.736026] snd_hda_intel 0000:06:00.0: CORB reset timeout#1, CORBRP = 0 [ 38.740090] snd_hda_intel 0000:06:00.0: Codec #1 probe error; disabling it... [ 38.747292] snd_hda_intel 0000:06:00.0: CORB reset timeout#1, CORBRP = 0 [ 43.776089] snd_hda_intel 0000:06:00.0: no AFG or MFG node found [ 43.776111] snd_hda_intel 0000:06:00.0: no codecs initialized dmesg | grep -i XXX [ 37.729723] XXX readw ffffc90005188000 3300 [ 37.729768] XXX readl ffffc90005188008 0 [ 37.729774] XXX readb ffffc90005188008 0 [ 37.730803] XXX readb ffffc90005188008 0 [ 37.730812] XXX readb ffffc90005188008 0 [ 37.731839] XXX readb ffffc90005188008 1 [ 37.733060] XXX readb ffffc90005188008 1 [ 37.733065] XXX readl ffffc90005188008 1 [ 37.733069] XXX readw ffffc9000518800e 2 [ 37.733075] XXX readl ffffc90005188020 0 [ 37.733081] XXX readw ffffc9000518804a 0 [ 37.733086] XXX readw ffffc9000518804a 0 [ 37.733090] XXX readw ffffc9000518804a 0 [ 37.733095] XXX readw ffffc9000518804a 0 [ 37.733099] XXX readw ffffc9000518804a 0 [ 37.733104] XXX readw ffffc9000518804a 0 [ 37.733108] XXX readw ffffc9000518804a 0 [ 37.733113] XXX readw ffffc9000518804a 0 [ 37.736839] XXX readl ffffc90005188024 c0000000 [ 37.736844] XXX readb ffffc9000518805d 1 [ 38.740103] XXX readb ffffc90005188080 0 [ 38.740110] XXX readb ffffc900051880a0 0 [ 38.740116] XXX readb ffffc900051880c0 0 [ 38.740122] XXX readb ffffc900051880e0 0 [ 38.740134] XXX readl ffffc90005188020 c0000000 [ 38.740144] XXX readl ffffc90005188008 101 [ 38.743555] XXX readl ffffc90005188008 1 [ 38.743567] XXX readl ffffc90005188020 0 [ 38.747380] XXX readl ffffc90005188024 c0000000 [ 39.752132] XXX readl ffffc90005188024 c0000000 [ 42.768069] XXX readw ffffc90005188048 4 [ 42.768073] XXX readw ffffc9000518804a 4 [ 42.768113] XXX readl ffffc90005188024 c0000000 [ 42.768119] XXX readb ffffc9000518805d 1 [ 42.768201] XXX readw ffffc90005188058 0 -Alnie