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Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D52045
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Earlier only intellimouse protocol was supported.
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No functional change intended.
MFC after: 1 week
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Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
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Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
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Sponsored by: Netflix
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MFC after: 2 weeks
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It can not be used for setting of state of multitouch events.
If necessary, use evdev_push_event() instead of it.
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Tested-by: Matthias Apitz <guru@unixarea.de>
MFC-after: 2 weeks
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Tested-by: Matthias Apitz <guru@unixarea.de>
MFC-after: 2 weeks
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After recent ig4 changes cyapa driver can be attached before timers
initialization is completed. Start polling thread from config_intrhook
to avoid busy loops in that case.
Notes:
svn path=/head/; revision=354304
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PR: 217783
Submitted by: razmyslov@viva64.com
MFC after: 1 week
Notes:
svn path=/head/; revision=322253
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Summary:
The hardware does not expose a classic SMBus interface.
Instead it has a lower level interface that can express a far richer
I2C protocol than what smbus offers. However, the interface does not
provide a way to explicitly generate the I2C stop and start conditions.
It's only possible to request that the stop condition is generated
after transferring the next byte in either direction. So, at least
one data byte must always be transferred.
Thus, some I2C sequences are impossible to generate, e.g., an equivalent
of smbus quick command (<start>-<slave addr>-<r/w bit>-<stop>).
At the same time isl(4) and cyapa(4) are moved to iicbus and now they use
iicbus_transfer for communication. Previously they used smbus_trans()
interface that is not defined by the SMBus protocol and was implemented
only by ig4(4). In fact, that interface was impossible to implement
for the typical SMBus controllers like intpm(4) or ichsmb(4) where
a type of the SMBus command must be programmed.
The plan is to remove smbus_trans() and all its uses.
As an aside, the smbus_trans() method deviates from the standard,
but perhaps backwards, FreeBSD convention of using 8-bit slave
addresses (shifted by 1 bit to the left). The method expects
7-bit addresses.
There is a user facing consequence of this change.
A user must now provide device hints for isl and cyapa that specify an iicbus to use
and a slave address on it.
On Chromebook hardware where isl and cyapa devices are commonly found
it is also possible to use a new chromebook_platform(4) driver that
automatically configures isl and cyapa devices. There is no need to
provide the device hints in that case,
Right now smbus(4) driver tries to discover all slaves on the bus.
That is very dangerous. Fortunately, the probing code uses smbus_trans()
to do its job, so it is really enabled for ig4 only.
The plan is to remove that auto-probing code and smbus_trans().
Tested by: grembo, Matthias Apitz <guru@unixarea.de> (w/o
chromebook_platform)
Discussed with: grembo, imp
Reviewed by: wblock (docs)
MFC after: 1 month
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D8172
Notes:
svn path=/head/; revision=308104
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Also addresses jhb's remarks on D2811 and D3068.
PR: 202059
Differential Revision: https://reviews.freebsd.org/D3351
Reviewed by: jhb
Approved by: jhb
Notes:
svn path=/head/; revision=286918
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Differential Revision: https://reviews.freebsd.org/D3068
Reviewed by: kib, wblock
Approved by: kib
Relnotes: yes
Notes:
svn path=/head/; revision=285876
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