From: Oleksandr Andrushchenko <andr2000@gmail.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: xen-devel@lists.xenproject.org,
Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Subject: Re: [PATCH 3/3] xen/displif: Add unique display connector identifier
Date: Thu, 7 Jun 2018 16:41:48 +0300 [thread overview]
Message-ID: <e439eefd-f2ff-1874-8c69-aa7532e124fd@gmail.com> (raw)
In-Reply-To: <20180607132903.GB24186@char.us.oracle.com>
On 06/07/2018 04:29 PM, Konrad Rzeszutek Wilk wrote:
> On Wed, May 23, 2018 at 09:19:23AM +0300, Oleksandr Andrushchenko wrote:
>> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
>>
>> If frontend is configured to expose multiple connectors then backend may
>> require a way to uniquely identify concrete virtual connector within the
>> frontend. This is useful for use-cases where connector needs to be
>> matched to physical display connector.
>> Add XenBus "unique-id" node parameter, so this sort of use-cases can
>> be implemented.
>>
>> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
>> ---
>> xen/include/public/io/displif.h | 8 ++++++++
>> 1 file changed, 8 insertions(+)
>>
>> diff --git a/xen/include/public/io/displif.h b/xen/include/public/io/displif.h
>> index 8a94f1f9b9d0..78158f739cf5 100644
>> --- a/xen/include/public/io/displif.h
>> +++ b/xen/include/public/io/displif.h
>> @@ -189,6 +189,13 @@
>> *
>> *----------------------------- Connector settings ----------------------------
>> *
>> + * unique-id
>> + * Values: <uint32_t>
> Ditto, perhaps an string instead?
Ditto ;)
String is way better, but we have to decide if we want to be consistent
with sndif
>> + *
>> + * After device instance initialization each connector is assigned a
>> + * unique ID (within the front driver), so it can be identified by the
>> + * backend by this ID.
>> + *
>> * resolution
>> * Values: <width, uint32_t>x<height, uint32_t>
>> *
>> @@ -368,6 +375,7 @@
>> #define XENDISPL_FIELD_EVT_CHANNEL "evt-event-channel"
>> #define XENDISPL_FIELD_RESOLUTION "resolution"
>> #define XENDISPL_FIELD_BE_ALLOC "be-alloc"
>> +#define XENDISPL_FIELD_UNIQUE_ID "unique-id"
>>
>> /*
>> ******************************************************************************
>> --
>> 2.17.0
>>
> _______________________________________________
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> Xen-devel@lists.xenproject.org
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next prev parent reply other threads:[~2018-06-07 13:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-23 6:19 [PATCH 1/3] xen/kbdif: Move multi-touch device parameters to backend nodes Oleksandr Andrushchenko
2018-05-23 6:19 ` [PATCH 2/3] xen/kbdif: Add unique input device identifier Oleksandr Andrushchenko
2018-06-07 13:28 ` Konrad Rzeszutek Wilk
2018-06-07 13:40 ` Oleksandr Andrushchenko
2018-06-07 15:47 ` Konrad Rzeszutek Wilk
2018-06-08 5:26 ` Oleksandr Andrushchenko
2018-05-23 6:19 ` [PATCH 3/3] xen/displif: Add unique display connector identifier Oleksandr Andrushchenko
2018-06-07 13:29 ` Konrad Rzeszutek Wilk
2018-06-07 13:41 ` Oleksandr Andrushchenko [this message]
2018-06-07 13:29 ` [PATCH 1/3] xen/kbdif: Move multi-touch device parameters to backend nodes Konrad Rzeszutek Wilk
2018-06-07 14:00 ` Juergen Gross
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