I've been trying to install a mythtv backend in centos 5.2 under Xen, with PCI passthrough of a DVB-T tuner to the domU.
In theory I should just need to use the centosplus kernel to get the additional video capture drivers. In practice I've got two problems, the first of which I think is easy to solve.
Once I got the PCI device visible in the domU, I could load the saa7134 driver for the analogue section of the card, but I couldn't load the saa7134_dvb driver for the digital section of the card, this driver is missing from the centosplus kernel.
I've installed the kernel source, and modified the .config file as shown in the patch below (the extra SAA7134_DVB settings are what my card requires, but I figure there are potentially users of the BT848_DVB driver that might appreciate that being included too).
After re-building the relevant modules, copying them to /lib/modules and doing "depmod -a" I can load the saa7134_dvb module.
I saw another user who experienced the same issue with centos 5.1 and Johnny Hughes said he would be willing to enable extra modules if they would help.
http://lists.centos.org/pipermail/centos/2007-December/091890.html
Could the relevant .config files for centosplus kernels be patched as follows?
--- .config.pre 2008-06-29 00:41:18.000000000 +0100 +++ .config.post 2008-06-29 01:33:04.000000000 +0100 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.18-prep -# Sun Jun 29 00:41:10 2008 +# Sun Jun 29 01:33:04 2008 # CONFIG_X86_64=y CONFIG_64BIT=y @@ -2035,7 +2035,7 @@ # CONFIG_VIDEO_ADV_DEBUG is not set CONFIG_VIDEO_VIVI=m CONFIG_VIDEO_BT848=m -# CONFIG_VIDEO_BT848_DVB is not set +CONFIG_VIDEO_BT848_DVB=y CONFIG_VIDEO_SAA6588=m CONFIG_VIDEO_BWQCAM=m CONFIG_VIDEO_CQCAM=m @@ -2057,7 +2057,8 @@ CONFIG_VIDEO_ZORAN_AVS6EYES=m CONFIG_VIDEO_SAA7134=m CONFIG_VIDEO_SAA7134_ALSA=m -# CONFIG_VIDEO_SAA7134_DVB is not set +CONFIG_VIDEO_SAA7134_DVB=m +CONFIG_VIDEO_SAA7134_DVB_ALL_FRONTENDS=y CONFIG_VIDEO_MXB=m CONFIG_VIDEO_DPC=m CONFIG_VIDEO_HEXIUM_ORION=m
My second problem is a bit harder, or possibly a sign that I've not configured xen pciback/pcifront properly. When the saa7134 driver is loaded in the domU, I see the following messages in dmesg
saa7130/34: v4l2 driver version 0.2.14 loaded saa7130[0]: found at 0000:00:00.0, rev: 1, irq: 17, latency: 64, mmio: 0xfebffc00 saa7130[0]: subsystem: 185b:c901, board: Compro Videomate DVB-T200 [card=71,autodetected] saa7130[0]: can't ioremap() MMIO memory saa7134: probe of 0000:00:00.0 failed with error -5
I'm not sure if the saa7134 driver is unusual in trying to perform an ioremap which is causing the error?
dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
Any suggestions on that one?
Andy Burns wrote:
I've been trying to install a mythtv backend in centos 5.2 under Xen, with PCI passthrough of a DVB-T tuner to the domU.
In theory I should just need to use the centosplus kernel to get the additional video capture drivers. In practice I've got two problems, the first of which I think is easy to solve.
Once I got the PCI device visible in the domU, I could load the saa7134 driver for the analogue section of the card, but I couldn't load the saa7134_dvb driver for the digital section of the card, this driver is missing from the centosplus kernel.
I've installed the kernel source, and modified the .config file as shown in the patch below (the extra SAA7134_DVB settings are what my card requires, but I figure there are potentially users of the BT848_DVB driver that might appreciate that being included too).
After re-building the relevant modules, copying them to /lib/modules and doing "depmod -a" I can load the saa7134_dvb module.
I saw another user who experienced the same issue with centos 5.1 and Johnny Hughes said he would be willing to enable extra modules if they would help.
http://lists.centos.org/pipermail/centos/2007-December/091890.html
Could the relevant .config files for centosplus kernels be patched as follows?
--- .config.pre 2008-06-29 00:41:18.000000000 +0100 +++ .config.post 2008-06-29 01:33:04.000000000 +0100 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.18-prep -# Sun Jun 29 00:41:10 2008 +# Sun Jun 29 01:33:04 2008 # CONFIG_X86_64=y CONFIG_64BIT=y @@ -2035,7 +2035,7 @@ # CONFIG_VIDEO_ADV_DEBUG is not set CONFIG_VIDEO_VIVI=m CONFIG_VIDEO_BT848=m -# CONFIG_VIDEO_BT848_DVB is not set +CONFIG_VIDEO_BT848_DVB=y CONFIG_VIDEO_SAA6588=m CONFIG_VIDEO_BWQCAM=m CONFIG_VIDEO_CQCAM=m @@ -2057,7 +2057,8 @@ CONFIG_VIDEO_ZORAN_AVS6EYES=m CONFIG_VIDEO_SAA7134=m CONFIG_VIDEO_SAA7134_ALSA=m -# CONFIG_VIDEO_SAA7134_DVB is not set +CONFIG_VIDEO_SAA7134_DVB=m +CONFIG_VIDEO_SAA7134_DVB_ALL_FRONTENDS=y CONFIG_VIDEO_MXB=m CONFIG_VIDEO_DPC=m CONFIG_VIDEO_HEXIUM_ORION=m
My second problem is a bit harder, or possibly a sign that I've not configured xen pciback/pcifront properly. When the saa7134 driver is loaded in the domU, I see the following messages in dmesg
saa7130/34: v4l2 driver version 0.2.14 loaded saa7130[0]: found at 0000:00:00.0, rev: 1, irq: 17, latency: 64, mmio: 0xfebffc00 saa7130[0]: subsystem: 185b:c901, board: Compro Videomate DVB-T200 [card=71,autodetected] saa7130[0]: can't ioremap() MMIO memory saa7134: probe of 0000:00:00.0 failed with error -5
I'm not sure if the saa7134 driver is unusual in trying to perform an ioremap which is causing the error?
dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);Any suggestions on that one?
open an issue report at bugs.centos.org for the centosplus patch...
On 29/06/2008 14:33, Karanbir Singh wrote:
open an issue report at bugs.centos.org for the centosplus patch...
Sorry, I meant to link to it from here
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Andy Burns wrote: | I've been trying to install a mythtv backend in centos 5.2 under Xen, | with PCI passthrough of a DVB-T tuner to the domU. | | In theory I should just need to use the centosplus kernel to get the | additional video capture drivers. In practice I've got two problems, the | first of which I think is easy to solve.
I will do this without Xen and slightly other hardware. (Terratec Synergy 1200 card.) But my last MythTV install was when FC4 was still hot.
Will you be using the MythTV packages from ATrpms?
Hugo.
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On 02/07/2008 22:56, Hugo van der Kooij wrote:
I will do this without Xen and slightly other hardware. (Terratec Synergy 1200 card.) But my last MythTV install was when FC4 was still hot.
0.21 is a very big improvement
Will you be using the MythTV packages from ATrpms?
Yes, I'm using it already, I used to have a combined frontend/backend, now the backend is on xen (and in a cupboard) and I have a nice new dedicated frontend under the TV.
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Andy Burns wrote: | On 02/07/2008 22:56, Hugo van der Kooij wrote:
|> Will you be using the MythTV packages from ATrpms? | | Yes, I'm using it already, I used to have a combined frontend/backend, | now the backend is on xen (and in a cupboard) and I have a nice new | dedicated frontend under the TV.
Just curious. What repo's are you using? Because it seems my first attempts led straight to dependency hell.
I just need it to be a backend with a DVB-C card and webinterface for programming. My MVPMC box will be my frontend.
Hugo.
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A: Yes. >Q: Are you sure? >>A: Because it reverses the logical flow of conversation. >>>Q: Why is top posting frowned upon?
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On 03/07/2008 12:01, Hugo van der Kooij wrote:
Just curious. What repo's are you using? Because it seems my first attempts led straight to dependency hell.
The normal centos 5.2 repos (with centosplus for dvb drivers, although now I use a self-built/patched centosplus kernel) and atrpms, nothing else, no dependency issues :-)
I just need it to be a backend with a DVB-C card and webinterface for programming. My MVPMC box will be my frontend.
similar setup to mine except my backend is virtual.
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Andy Burns wrote: | On 03/07/2008 12:01, Hugo van der Kooij wrote: | |> Just curious. What repo's are you using? Because it seems my first |> attempts led straight to dependency hell. | | The normal centos 5.2 repos (with centosplus for dvb drivers, although | now I use a self-built/patched centosplus kernel) and atrpms, nothing | else, no dependency issues :-) | |> I just need it to be a backend with a DVB-C card and webinterface for |> programming. My MVPMC box will be my frontend. | | similar setup to mine except my backend is virtual.
Could you forward the repo settings (/etc/yum.conf + /etc/yum.repos.d/*) and package list (rpm -qa|sort) offlist? I do not think we need to bother the list with that sort of details.
Hugo.
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A: Yes. >Q: Are you sure? >>A: Because it reverses the logical flow of conversation. >>>Q: Why is top posting frowned upon?
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Andy Burns -
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Karanbir Singh