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From: "Jürgen Groß" <jgross@suse.com>
To: Oleksandr Andrushchenko <andr2000@gmail.com>,
	xen-devel@lists.xenproject.org, ian.jackson@eu.citrix.com,
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Subject: Re: [PATCH v2] xen/displif: Protocol version 2
Date: Wed, 1 Jul 2020 12:46:41 +0200
Message-ID: <dffd127d-c5a1-4c77-baa8-f1d931145bc4@suse.com> (raw)
In-Reply-To: <20200701071923.18883-1-andr2000@gmail.com>

On 01.07.20 09:19, Oleksandr Andrushchenko wrote:
> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> 1. Add protocol version as an integer
> Version string, which is in fact an integer, is hard to handle in the
> code that supports different protocol versions. To simplify that
> also add the version as an integer.
> 2. Pass buffer offset with XENDISPL_OP_DBUF_CREATE
> There are cases when display data buffer is created with non-zero
> offset to the data start. Handle such cases and provide that offset
> while creating a display buffer.
> 3. Add XENDISPL_OP_GET_EDID command
> Add an optional request for reading Extended Display Identification
> Data (EDID) structure which allows better configuration of the
> display connectors over the configuration set in XenStore.
> With this change connectors may have multiple resolutions defined
> with respect to detailed timing definitions and additional properties
> normally provided by displays.
> If this request is not supported by the backend then visible area
> is defined by the relevant XenStore's "resolution" property.
> If backend provides extended display identification data (EDID) with
> XENDISPL_OP_GET_EDID request then EDID values must take precedence
> over the resolutions defined in XenStore.
> 4. Bump protocol version to 2.
> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


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Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01  7:19 Oleksandr Andrushchenko
2020-07-01 10:46 ` Jürgen Groß [this message]
2020-07-01 12:07   ` Oleksandr Andrushchenko
2020-07-02  7:20     ` Jürgen Groß
2020-07-02  7:59       ` Oleksandr Andrushchenko
2020-07-02  8:42         ` Jürgen Groß

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