diff options
| author | Emmanuel Vadot <manu@FreeBSD.org> | 2021-11-04 09:42:37 +0000 |
|---|---|---|
| committer | Emmanuel Vadot <manu@FreeBSD.org> | 2022-06-21 15:13:57 +0000 |
| commit | 7f14bc44022da73cfdb0dd6d73a4ade239c7e857 (patch) | |
| tree | 7a88431f8b7e9e8b6e5abc12b85fbe68bc7fe9c8 /sys/conf/files | |
| parent | db761c6a649ce2ed988a4bd477e3c785e5a852a3 (diff) | |
linuxkpi: Add i2c support
Add i2c support to linuxkpi. This is needed by drm-kmod.
For every i2c_adapter added by i2c_add_adapter we add a child to the
device named "lkpi_iic". This child handle the conversion between
Linux i2c_msgs to FreeBSD iic_msgs.
For every i2c_adapter added by i2c_bit_add_bus we add a child to the
device named "lkpi_iicbb". This child handle the conversion between
Linux i2c_msgs to FreeBSD iic_msgs.
With the help of iic(4), this expose the i2c controller to userspace
allowing a user to query DDC information from a monitor.
e.g.: i2c -f /dev/iic0 -a 0x28 -c 128 -d r
will query the standard EDID from the monitor if plugged.
The bitbang part (lkpi_iicbb) isn't tested at all for now as I don't have
compatible hardware (all my hardware have native i2c controller).
Tested on: Intel (SandyBridge, Skylake, ApolloLake)
Tested on: AMD (Picasso, Polaris (amd64 and arm64))
MFC after: 1 month
Reviewed by: hselasky
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D33053
(cherry picked from commit 1961a14a47437595fb7fcdc20e327440e3eb51e2)
Diffstat (limited to 'sys/conf/files')
| -rw-r--r-- | sys/conf/files | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/sys/conf/files b/sys/conf/files index 7fc99a929947..81781ab0bc66 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -1850,7 +1850,7 @@ dev/ichsmb/ichsmb_pci.c optional ichsmb pci dev/ida/ida.c optional ida dev/ida/ida_disk.c optional ida dev/ida/ida_pci.c optional ida pci -dev/iicbus/acpi_iicbus.c optional acpi iicbus +dev/iicbus/acpi_iicbus.c optional acpi iicbus | acpi compat_linuxkpi dev/iicbus/ad7418.c optional ad7418 dev/iicbus/ads111x.c optional ads111x dev/iicbus/ds1307.c optional ds1307 @@ -1861,13 +1861,13 @@ dev/iicbus/htu21.c optional htu21 dev/iicbus/icee.c optional icee dev/iicbus/if_ic.c optional ic dev/iicbus/iic.c optional iic -dev/iicbus/iic_recover_bus.c optional iicbus -dev/iicbus/iicbb.c optional iicbb -dev/iicbus/iicbb_if.m optional iicbb -dev/iicbus/iicbus.c optional iicbus -dev/iicbus/iicbus_if.m optional iicbus +dev/iicbus/iic_recover_bus.c optional iicbus | compat_linuxkpi +dev/iicbus/iicbb.c optional iicbb | compat_linuxkpi +dev/iicbus/iicbb_if.m optional iicbb | compat_linuxkpi +dev/iicbus/iicbus.c optional iicbus | compat_linuxkpi +dev/iicbus/iicbus_if.m optional iicbus | compat_linuxkpi dev/iicbus/iichid.c optional iichid acpi hid iicbus -dev/iicbus/iiconf.c optional iicbus +dev/iicbus/iiconf.c optional iicbus | compat_linuxkpi dev/iicbus/iicsmb.c optional iicsmb \ dependency "iicbus_if.h" dev/iicbus/iicoc.c optional iicoc @@ -4597,6 +4597,10 @@ compat/linuxkpi/common/src/linux_firmware.c optional compat_linuxkpi \ compile-with "${LINUXKPI_C}" compat/linuxkpi/common/src/linux_hrtimer.c optional compat_linuxkpi \ compile-with "${LINUXKPI_C}" +compat/linuxkpi/common/src/linux_i2c.c optional compat_linuxkpi \ + compile-with "${LINUXKPI_C}" +compat/linuxkpi/common/src/linux_i2cbb.c optional compat_linuxkpi \ + compile-with "${LINUXKPI_C}" compat/linuxkpi/common/src/linux_interrupt.c optional compat_linuxkpi \ compile-with "${LINUXKPI_C}" compat/linuxkpi/common/src/linux_kthread.c optional compat_linuxkpi \ @@ -4633,6 +4637,7 @@ compat/linuxkpi/common/src/linux_work.c optional compat_linuxkpi \ compile-with "${LINUXKPI_C}" compat/linuxkpi/common/src/linux_xarray.c optional compat_linuxkpi \ compile-with "${LINUXKPI_C}" +compat/linuxkpi/common/src/lkpi_iic_if.m optional compat_linuxkpi compat/linuxkpi/common/src/linux_seq_file.c optional compat_linuxkpi | lindebugfs \ compile-with "${LINUXKPI_C}" |