History log of /freebsd/sys/modules/i2c/cyapa/Makefile (Results 1 – 10 of 10)
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# e9ac4169 15-Jul-2024 Warner Losh <imp@FreeBSD.org>

Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix


Revision tags: release/14.1.0, release/13.3.0, release/14.0.0
# 031beb4e 16-Aug-2023 Warner Losh <imp@FreeBSD.org>

sys: Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/


Revision tags: release/13.2.0, release/12.4.0, release/13.1.0, release/12.3.0, release/13.0.0
# 54d2dfc4 21-Dec-2020 Vladimir Kondratyev <wulf@FreeBSD.org>

cyapa(4): Add support for evdev protocol

Tested-by: Matthias Apitz <guru@unixarea.de>
MFC-after: 2 weeks


Revision tags: release/12.2.0, release/11.4.0, release/12.1.0, release/11.3.0, release/12.0.0, release/11.2.0, release/10.4.0, release/11.1.0
# 193d9e76 04-Mar-2017 Enji Cooper <ngie@FreeBSD.org>

sys/modules: normalize .CURDIR-relative paths to SRCTOP

This simplifies make output/logic

Tested with: `cd sys/modules; make ALL_MODULES=` on amd64
MFC after: 1 month
Sponsored by: Dell EMC Isilon


# 02ebdc78 31-Oct-2016 Dimitry Andric <dim@FreeBSD.org>

Merge ^/head r307736 through r308146.


# 448897d3 30-Oct-2016 Andriy Gapon <avg@FreeBSD.org>

add iic interface to ig4 driver, move isl and cyapa to iicbus

Summary:
The hardware does not expose a classic SMBus interface.
Instead it has a lower level interface that can express a far richer
I2

add iic interface to ig4 driver, move isl and cyapa to iicbus

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

show more ...


Revision tags: release/11.0.1, release/11.0.0, release/10.3.0
# f94594b3 12-Sep-2015 Baptiste Daroussin <bapt@FreeBSD.org>

Finish merging from head, messed up in previous attempt


# ab875b71 14-Aug-2015 Navdeep Parhar <np@FreeBSD.org>

Catch up with head, primarily for the 1.14.4.0 firmware.


Revision tags: release/10.2.0
# 5f78ec1c 28-Jul-2015 Dimitry Andric <dim@FreeBSD.org>

Merge ^/head r285793 through r285923.


# 46f07718 25-Jul-2015 Michael Gmelin <grembo@FreeBSD.org>

cyapa(4), driver for the Cypress APA I2C trackpad

Differential Revision: https://reviews.freebsd.org/D3068
Reviewed by: kib, wblock
Approved by: kib
Relnotes: yes