Commit Graph

179 Commits

Author SHA1 Message Date
Josef Söntgen
7109b80bbd dde_linux: enable -gnu11
The option is default since 5.18 and several compilation units
require it.

Issue genodelabs/genode-allwinner#21.
2023-07-14 12:01:19 +02:00
Josef Söntgen
497c8b0922 wifi: provide WPA3-personal support
This commit introduces preliminary support for joining networks secured
via WPA3-personal. So far it was only tested with the one OpenWRT AP
configured for WPA3 (see excerpt below) where it WPA3-only as well as
WPA2/WPA3 mixed worked fine.

Scan results excerpt:

00:11:22:33:44:55    5180    -45     [WPA2-SAE-CCMP][SAE-H2E][ESS][UTF-8]    PewPew
00:11:22:33:44:55    2412    -67     [WPA2-PSK+SAE+PSK-SHA256-CCMP][SAE-H2E][ESS][UTF-8]     PewPew2

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
dc178e0ab2 dde_linux: enhance KBUILD_MODNAME generation
It turns out solely relying on the name of the compilation-unit
is not enough. In at least one multi-device driver, e.g. rtlwifi,
an equally called compilation-unit is found in several different
directories. There KBUILD_MODNAME is used to name the driver,
which fails later on as the driver framework refuses to register
an equally named driver twice.

Instead of only considering the name of the compilation-unit also
include the last element of the path to generate differentiating
KBUILD_MODNAME value.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
22c9157231 wifi: add RFKILL notification interface
Add somewhat cosmetic changes to the RFKILL interface used between
the management layer and the driver library to make the intent clear.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
6b406469f6 dde_linux: remove unused var from libnl_include
Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
080b0fb9b3 dde_linux: update wpa_supplicant to version 2.10
The supplicant is updated to the current release and is now downloaded
as archive rather than pulled from git. For the time being 'libnl' is
still kept at 3.2.25 as the current 3.7.0 release relies on more Linux
infrastructure that our integration does not provide.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
ea0a692879 wifi: get firmware from tar archive
This commit changes the firmware handling from requesting each
firmware file as a ROM module that is checked against a list of
known images (including their size) to requesting each file via
the local VFS of the 'wifi_drv'. This allows for using the original
probing mechanism that tries to select a matching firmware version.

The 'repos/dde_linux/src/drivers/wifi/README' file contains more
detailed information on how to configure the driver.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
d5710d9de3 Move 'wifi' driver to dde_linux repository
The bulk of the driver code now lives in the 'dde_linux' repository,
which is available on all platforms, from where it can be referenced by
other repositories.

The 'wifi_drv' binary was delegated to a generic harness that includes
all configuration and management functionality shared by all wireless
device driver components, e.g., the wpa_supplicant. The code of the
device driver emulation environment is located in 'src/lib/wifi'. It
is referenced by the platform-specific driver library that resides in
the corresponding platform repository. The runtime configuration needs
to point the driver to proper driver library.

The platform-specific library is in charge of orchestrating the contrib
source utilized by the driver as well as providing the 'source.list'
and 'dep.list' files. It must include the generic library snippet
'repos/dde_linux/lib/wifi.inc' that deals with managing the emulation
environment code.

The 'repos/dde_linux/src/drivers/wifi/README' file contains more
detailed information on how to deploy the driver.

Issue #4861.
2023-05-30 12:03:32 +02:00
Christian Helmuth
590cf78c0f lx_emul: clarify Linux does not support -O0/-Og 2023-05-30 12:03:28 +02:00
Sebastian Sumpf
69d3d83930 lx_emul: set minimum alignment of allocations to 16 byte
FPU allocations on x86/ARM require a minimum alignment or may raise
faults (#GP or general protection in the x86 case).
2023-05-30 12:03:28 +02:00
Stefan Kalkowski
8ae5ae76fb wifi: support building for ARM64
This commit introduces support for building the WLAN driver for ARM
platforms. It makes the WPA supplicant and its support libraries
available for all platforms. It also seperates the PCI parts to
accommodate platforms where other bus protocols are used.

Issue #4813
2023-04-26 11:58:14 +02:00
Stefan Kalkowski
2269f42e17 lx_emul: update Linux port to 6.1.20
Fix genodelabs/genode#4798
2023-04-17 14:48:24 +02:00
Christian Helmuth
3a9ef48721 dde_linux: separate virt_linux from wireguard
Preparation to support further hardware-agnostic dde_linux components
(incl. lxip and tests).

Fixes #4774
2023-04-17 14:48:23 +02:00
Norman Feske
e9b249b709 Replace use of base/snprintf.h by format library
Issue #2064
2023-03-13 14:32:53 +01:00
Stefan Kalkowski
6a7a30ceaa lx_emul: unify udelay implementation
Implement udelay for all architectures within common lx_emul code,
remove driver-specific version.

Always do busy looping in udelay and use cpu_relax()
like the original Linux code. Thereby, we profit from architecture specific
instructions (cpu cool down), and jiffies are updated if irqs are on.

Ref genodelabs/genode#4778
2023-03-13 14:32:37 +01:00
Stefan Kalkowski
c90b61f571 lx_emul: track irq state changes
To be able to check for interrupts being on or off,
the enabling and disabling is tracked in lx_emul.
When interrupts get received, they have to be turned off.

Ref genodelabs/genode#4778
2023-03-13 14:32:37 +01:00
Stefan Kalkowski
767632e1af dde_linux: remove leftovers of legacy fec_nic_drv
Some relicts in `repos/dde_linux/lib`.

Ref #4651
2023-01-24 12:07:30 +01:00
Christian Helmuth
d5577421f8 wireguard: create dir before generating asm file
Prevents errors like follows.

  /bin/bash: arch/arm64/crypto/poly1305-core.S: No such file or directory
  make[4]: *** [.../genode/repos/dde_linux/lib/mk/spec/arm_64/wireguard_lx_inc_dirs.mk:17: arch/arm64/crypto/poly1305-core.S] Error 1
2022-11-17 08:00:34 +01:00
Stefan Kalkowski
5528434fb6 lx_kit & lx_emul: use generic platform API
* Remove wrapper for legacy x86 platform API
* Move PCI configuration space quirks to corresponding driver
  (pc_usb_host_drv, pc_wifi_drv, pc_intel_fb_drv)
* Adapt driver test run-scripts to changed configuration

Ref genodelabs/genode#4578
2022-10-12 12:09:33 +02:00
Stefan Kalkowski
89f9e7a3ee lx_emul: consolidate SMP + NO_HZ_IDLE
* Move common SMP and NO_HZ_IDLE variables and functions into
  generic lx_emul shadow implementations, and integrate them
  into the common lx_emul import rules
* Enable SMP and NO_HZ_IDLE within virt_linux kernel configuration
* Adapt pc drivers and wireguard accordingly
* Use original Linux softirq implementation in wireguard
* Remove erroneous softirq shadow implementation

Ref genodelabs/genode#4540
Ref genodelabs/genode#4562
2022-08-10 13:33:03 +02:00
Christian Helmuth
fb0fe8617c dde_linux: re-enable -Wformat
Fixes #4542
2022-08-10 13:33:01 +02:00
Sebastian Sumpf
64c81e2846 usb_net: Add cdc_ether ECM support
* Enable ECM devices
* Allow disconnect of devices
* Handle link state correctly
* Required by PinePhone's USB modem

issue #4557
2022-08-10 13:32:59 +02:00
Sebastian Sumpf
87aa456bfd lx_emul: remove 'shadow/softirq.c' from common imports
softirq.c implements tasklets that need on the PinePhone cannot be
called directly.

issue #4557
2022-08-10 13:32:59 +02:00
Martin Stein
48e396913c wireguard: don't always rebuild device.c/netlink.c
We have to correct the CC_OPT_* variable for these files and used to do so via
phony pre-requisite for the corresponding object files because the correction
had to take place after the variable initialization in
import-lx_emul_common.inc and before the creation of the object files. However,
this caused the objects to always rebuild.

This commit fixes this issue by using Make's feature of target-specific
variables instead. The drawback of this solution is that we can no longer
override CC_OPT_* with a modification of its original value but instead have to
override with a completely new value. This is because otherwise, Make would
either complain about recursive assignment or produce an empty value.

Ref #4519
2022-08-10 13:29:40 +02:00
Martin Stein
b1c77dc42b wireguard: enable WARN_STRICT_CONVERSION in lib
The strict conversion warnings were disabled during development when the
contrib code was still compiled with the wireguard lib. Now this isn't
necessary anymore as the contrib code is in the wireguard_lx_inc_dirs lib.

Ref #4520
2022-08-10 13:29:40 +02:00
Martin Stein
520742cf3e wireguard: generic target.mk
Introduce an arch-specific wireguard lib that contains all code from the
former arch-specific target.mk files. This allows us to create a generic
target.mk that merely depends on the library and a dummy.cc file. The latter
ensures that building/linking of the target isn't skipped by the build system.

Ref #4519
2022-05-31 10:52:00 +02:00
Martin Stein
83408ef35c wireguard: rename wireguard lib
The wireguard library's purpose is having a separate INC_DIR setting for the
files that need Linux include paths that would clash with Genode include paths.
Therefore, the name wireguard_lx_inc_dirs is more descriptive. Furthermore,
this allows us to create a new arch-specific wireguard lib in a future commit
in the course of preventing arch-specific target.mk's (a commonly used
approach in Genode).

Ref #4519
2022-05-31 10:52:00 +02:00
Martin Stein
a845dffa63 dde_linux: port of WireGuard kernel module
A userland component that ports the Linux WireGuard kernel module (originally
from kernel version 5.14.21) and integrates it via a NIC session (public
network side) and an Uplink session (private network side). The
WireGuard-specific device configuration is done through the component
configuration. The port is done using lx_emul, lx_kit and the virt_linux
targets. The commit adds also 4 corresponding run scripts of which 3 are fully
automated of which 1 is added to the autopilot.

:Warning:

Although in principal functioning, the WireGuard port has not been exposed to a
sufficient amount of real-world testing, so far. Therefore, we strongly
recommend not to use it in any security-critical scenarios! There is no
guarantee that the port meets any of the security goals pursued by the
WireGuard protocol or other WireGuard implementations!

Ref #4397
2022-05-25 12:23:03 +02:00
Martin Stein
f84e512ded virt_linux: support arm_64
This feature was motivated and used only by the WireGuard port, so far.

Ref #4397
2022-05-25 12:23:02 +02:00
Stefan Kalkowski
c049aed44f lx_emul: eliminate wrong include pathes
Fix genodelabs/genode#4510
2022-05-25 12:23:02 +02:00
Alexander Boettcher
38e5972e45 Remove legacy intel display driver
The driver is superseded by the new driver located in the 'pc'
repository.

Issue #4508
2022-05-25 12:23:02 +02:00
Josef Söntgen
f146f9acb6 Move wpa_supplicant to own port
Issue #4508.
2022-05-25 12:22:10 +02:00
Josef Söntgen
fd14cf9f1e Move libnl to own port
Issue #4508.
2022-05-25 12:22:10 +02:00
Josef Söntgen
573cabaf24 Remove legacy wifi driver
The driver is superseded by the new driver located in the 'pc'
repository.

Fixes #4508.
2022-05-25 12:22:10 +02:00
Johannes Schlatow
ba04aab75f lx_emul: initialise preempt_count for ARM 32bit
genodelabs/genode#4499
2022-05-25 12:22:09 +02:00
Josef Söntgen
e313059dd5 lx_emul_common: prevent override of CC_OPT_$(1)
This allows for extending such compilation unit specific options
for down by users of the library.

Issue #4500.
2022-05-25 12:19:33 +02:00
Josef Söntgen
8056811b4f Rename wifi_drv to legacy_wifi_drv
Issue #4455.
2022-04-13 09:29:04 +02:00
Josef Söntgen
24c0bb95ef pc_lx_emul: allow for being used in a library
The location of the used 'source.list' file is hard-coded and will not
work when the ported driver is implemented as a shared library. For
this use-case provide means to set the location differently.

Issue #4455.
2022-04-13 09:29:04 +02:00
Christian Helmuth
d182b20705 build: ensure rules with pipes might fail
.SHELLFLAGS is extended by option pipefail to make pipes fail if any pipe
element fails. As .SHELLFLAGS is exported into sub-make instances it
must be unexported before calling third-party build systems recursively.
2022-03-21 13:43:13 +01:00
Stefan Kalkowski
9713014130 dde_linux: add virt_linux lx_emul flavor
To support device-less protocol-stacks only ports, we can use a
Virt I/O Linux kernel flavor, and export the lx_kit/lx_emul parts
not depending on platform API and devices.

Ref #4397
2022-03-09 10:55:16 +01:00
Stefan Kalkowski
0fa695dbd7 lx_kit/lx_emul: make memory backend configureable
* Drivers have to use lx_kit/memory_dma.cc
* Protocol-stacks use lx_kit/memory_non_dma.cc
* Moreover the device-dependent lx_emul parts get removed
  from the common lx_emul import rules

Fix #4443
2022-03-09 10:55:16 +01:00
Stefan Kalkowski
5c71a8d74d lx_emul: extract common lx_emul import makefile
Fix #4442
2022-03-09 10:55:16 +01:00
Stefan Kalkowski
1e41c6daa4 lx_kit: move setjmp/longjmp away from legacy
We use the architecture-specific setjmp/longjmp implementation without
modification in the newer lx_kit implementation as well. There is no
need for a duplication.

Ref genodelabs/genode#4411
2022-02-15 10:23:15 +01:00
Stefan Kalkowski
b12b0ed93d imx8q_evk: remove board support from repository
Moved to separate repo at https://github.com/skalk/genode-imx/

Fix #4301
2021-11-29 15:10:51 +01:00
Stefan Kalkowski
b16bb82f8b dde_linux: mark lx_emul and lx_kit as legacy
* Move headers in src/include into legacy sub-directory
* Move src/lx_kit to src/lib/legacy/

Fix #4223
2021-07-28 11:25:21 +02:00
Alexander Boettcher
27004e1fd5 usb: remove monolithic usb driver
+ adjust README files

Fixes #4173
2021-06-25 11:41:43 +02:00
Tomasz Gajewski
1867cf4967 iwl_firmware: use CUSTOM_TARGET_DEPS 2021-04-20 12:03:04 +02:00
Tomasz Gajewski
2f0898d2a9 dde_linux: fixes in makefiles
Issue #3972
2021-03-16 11:25:25 +01:00
Norman Feske
755aed7cb2 dde_linux: don't spin when panicking
Issue #3997
2021-03-12 12:01:38 +01:00
Martin Stein
f6d195a9de nic drivers: provide optional Uplink-client mode
In order to perform a smooth transition from NIC drivers that act only as NIC
session clients to NIC drivers that act only as Uplink session clients, this
commit introduces an intermediate state in which all NIC drivers support both
modes. That said, a NIC drivers mode is now statically determined through a new
optional 'mode' attribute in the drivers <config> tag that can be set to either
'nic_server' (default value) or 'uplink_client'. Reconfiguring this attribute
at a driver doesn't have any effects. Whithout this attribute being set, all
NIC drivers will behave the same as they did before the commit. When set to
'uplink_client', however, instead of providing a Nic service, they request
an Uplink session whenever their network interface becomes "UP" and close the
session whenever their network interface becomes "DOWN".

Ref #3961
2021-01-25 13:58:09 +01:00
Sebastian Sumpf
0beda6bca4 dde_linux: USB MBIM modem driver support
Thise driver supports USB LTE modems for Huawais' ME906s through MBIM
and provides a traditional Nic session. The "control" interface is a
Terminal session, which can be used via libmbim/mbimcli.

issue #3822
2020-12-09 14:02:11 +01:00
Sebastian Sumpf
664b861f9d imx8_fb_drv: MIPI DSI display support
- support for Northwest Logic MIPI DSI bridge
- support for Radium panel (NXP MX8_DSI_OLED1)
- new 'DSI-1' connector in driver config file

issue #3900
2020-10-09 13:35:56 +02:00
Stefan Kalkowski
5f5ad41ad3 hw: unify irq enumeration for Raspberri Pi
By now, the enumeration of peripheral interrupts on Raspberry Pi 1 was
different in between base-hw kernel and Fiasco.OC. Therefore, hacks were
needed in every driver to request the correct interrupt number dependent
on the kernel. Before reproducing the same in the platform driver for rpi,
we can more easily use the same enumeration with base-hw.

Ref #3864
2020-08-25 11:50:12 +02:00
Christian Prochaska
b29112efdf dde_linux: framebuffer driver for i.MX8 EVK
Fixes #3591
2020-02-04 15:47:27 +01:00
Christian Helmuth
4bbbf5d2e3 dde_linux: reduce compiler warnings 2020-02-04 15:47:27 +01:00
Christian Helmuth
76438a3f85 dde_linux: refactor usb arch-dependent includes
Also added arm_64/arm_v8, which fixes building board-independent usb_hid
etc.
2019-11-19 14:19:34 +01:00
Christian Prochaska
38dcdeeb04 fec_nic_drv: arm_64 support
Fixes #3446
2019-08-13 12:02:27 +02:00
Sebastian Sumpf
ef8140cce5 lxip: ARM 64-Bit support
issue #3407
2019-07-09 08:55:23 +02:00
Stefan Kalkowski
bf5a631a14 dde_linux: name usb_drv unambigously
* Make package buildable for ARM too
* Move usb library to src targets for explicitly named targets
* adapt remaining run-scripts to use the correctly named usb drivers

Ref #2190
2019-05-16 13:11:00 +02:00
Stefan Kalkowski
d5104aca05 dde_linux: make rpi usb drivers kernel independent
Ref #3180
2019-05-16 13:11:00 +02:00
Emery Hemingway
47c6377ac0 Remove libc_lxip
The libc_lxip library is superceded by vfs_lwip.

Fix #2960
Fix #2535
2019-02-12 10:33:14 +01:00
Alexander Boettcher
4ca8e31e00 intel_fb: enable Intel VBT lookup via ACPI
Fixes #2965
2018-09-13 14:54:21 +02:00
Stefan Kalkowski
2882bd48e6 dde_linux: USB client driver for NIC version 4.16 2018-08-30 09:24:46 +02:00
Stefan Kalkowski
b32a3cd4d9 dde_linux: USB-client driver for HID version 4.16 2018-08-30 09:24:45 +02:00
Stefan Kalkowski
b02f483841 dde_linux: usb host controller driver version 4.16 2018-08-30 09:24:45 +02:00
Josef Söntgen
6f62f5d428 wifi: fix missing regulatory DB 2018-08-28 16:45:23 +02:00
Josef Söntgen
ec9e8ecfaa wifi_drv: enable soft RFKILL and new front end
* TODO
2018-08-28 16:18:34 +02:00
Josef Söntgen
870505bcd9 wifi: update iwlwifi to 4.16.3 2018-08-28 16:18:33 +02:00
Alexander Boettcher
eb62d9cc04 dde_linux: update intel_fb to 4.16.3
Fixes #2736
2018-08-28 16:18:33 +02:00
Christian Helmuth
aa8b725457 wifi: don't generate unused files in port 2018-05-30 13:36:25 +02:00
Stefan Kalkowski
d5dc234a00 dde_linux: wandboard ethernet driver
Fixes #2665
2018-02-28 11:04:56 +01:00
Norman Feske
5261462d7a depot: src/vfs_lxip recipe 2018-02-28 11:01:31 +01:00
Martin Stein
8844c57254 net-stat: remove as it is not used and outdated
According to the creator of the net-stat lib, this lib was a mere debugging
tool that is not used anymore nor worth the work of updating the it to
modern Genode coding paradigms. Also, there exist no tests for the lib.
2018-01-17 12:14:42 +01:00
Norman Feske
366bba0227 Exclude higher-level repos from strict warnings
This is a follow-up commit to "Increase default warning level", which
overrides Genode's new default warning level for targets contained in
higher-level repositories. By explicitly whitelisting all those targets,
we can selectively adjust them to the new strictness over time - by
looking out for 'CC_CXX_WARN_STRICT' in the target description files.

Issue #465
2018-01-17 12:14:36 +01:00
Josef Söntgen
b3b10c1439 dde_linux: create wifi recipe 2017-11-30 11:23:07 +01:00
Alexander Senier
f15e8fec8f dde_linux/usb: Add RNDIS driver 2017-11-09 12:18:39 +01:00
Alexander Senier
50ec5c03c1 dde_linux/usb: Support CDC Ethernet 2017-11-09 12:18:39 +01:00
Emery Hemingway
8ca63d4a6e libc: reintegrate libc_resolv library
Remove getaddrinfo and freeaddrinfo from the Libc::Plugin and get rid of
the extra libc_resolv library. Remove getaddrinfo/freeaddrinfo symbol
hiding patch for FreeBSD sources. Remove libc_resolv from Makefiles and
run scenarios.

Fix #2273
2017-10-05 17:40:04 +02:00
Norman Feske
14b5e81f1e depot: recipe for src/intel_fb_drv 2017-10-05 17:39:58 +02:00
Stefan Kalkowski
632ef28463 os: removal of deprecated os/config.h (fix #2431) 2017-05-31 13:16:22 +02:00
Alexander Boettcher
80eddd8731 usb: add OHCI support
Fixes #2357
2017-05-31 13:16:00 +02:00
Christian Helmuth
6b2d8a740d dde_linux: explicitly build C89 with GNU extensions
Issue #2372
2017-05-31 13:15:53 +02:00
Christian Helmuth
c475edccfc dde_linux: use internal setjmp/longjmp only 2017-05-02 15:29:03 +02:00
Norman Feske
7200ab2935 usb_drv: disambiguate header scan locations
When creating a source archive for the USB driver, both the contrib and
Genode-specific source codes are merged into a single directory
structure. In this case, the original way of determining the Linux
source code to scan for #include directives would apply the scanning to
Genode-specific source codes too. This patch tightens the search
criterion such that only Linux source codes are processed.
2017-05-02 15:29:02 +02:00
Martin Stein
335685b7fe usb: get rid of combined specs
Issue #2280.
2017-02-28 12:59:18 +01:00
Sebastian Sumpf
304f2eaf38 lxip: VFS plugin
Provides file-system compatible to libc socket-fs requirements. This
includes pseudo file for network configuration.
2017-02-28 12:59:15 +01:00
Christian Helmuth
eda0828ca0 Skip binary files in GEN_INCLUDES
A binary file may be a temporary Vim .swp file when examining contrib
sources. The commit prevents build errors like

  .../repos/dde_linux/lib/mk/lxip_include.mk:29:
  target '.../x86_64/var/libcache/lxip_include/include/include/include/Binary'
  given more than once in the same rule
  .../repos/dde_linux/lib/mk/lxip_include.mk:29:
  target '.../x86_64/var/libcache/lxip_include/include/include/include/file'
  given more than once in the same rule
  ...
2017-02-23 15:03:28 +01:00
Sebastian Sumpf
6f5c839df7 lxip/libc_lxip: adjust to new Genode API 2017-02-23 14:54:46 +01:00
Christian Helmuth
d5e57d15c8 Remove debugging artifacts from lxip and usb libs 2017-01-31 12:01:14 +01:00
Christian Helmuth
212cf856a5 Wifi driver libraries require x86 2017-01-20 16:46:57 +01:00
Stefan Kalkowski
128cd852b7 intel_fb: only build library on x86 (ref #2222) 2017-01-13 13:07:08 +01:00
Josef Söntgen
d647b6c797 lxip: use xoroshiro128+ as random backend 2016-11-25 15:27:28 +01:00
Christian Helmuth
d4879f04a6 usb: multi-touch and absolute-pointer devices
Now, we support multi-touch devices generating multi-touch events and
absolute-pointer devices simultaneously with multitouch="yes". Still,
multitouch="no" generates emulated absolute-pointer events for
multi-touch devices.
2016-08-10 11:07:49 +02:00
Josef Söntgen
edf90aec42 wifi_drv: transition to the new base API
Issue #1987.
2016-06-28 11:09:28 +02:00
Sebastian Sumpf
d48219138c usb: transition to the new base API
* remove all 'Genode::env()' calls
* use attached roms to read configuration
* use compoenent framework
* remove all PDBG, PINF, PWRN macros

Issue #1987
Fixes #2019
2016-06-28 11:09:25 +02:00
Stefan Kalkowski
e1c451f19a dde_linux: update intel_fb to 4.4.3
Issue #1974.
2016-05-26 15:54:13 +02:00
Sebastian Sumpf
369ff2a001 dde_linux: update usb to 4.4.3
Issue #1974.
2016-05-26 15:54:12 +02:00
Josef Söntgen
bcefc874d6 dde_linux: update lxip to 4.4.3
Issue #1974.
2016-05-26 15:54:11 +02:00
Josef Söntgen
b9e7fb1edf dde_linux: update wifi to 4.4.3
Issue #1974.
2016-05-26 15:54:11 +02:00
Josef Söntgen
0106045bad lx_kit: add modular lx_emul backend
The modular lx_kit seperates the required back end functionality of the
Linux emulation environment from the front end. Thereby each driver can
reuse specific parts or supply more suitable implementations by itself.
It is used to reduce the amount of redundant code in each driver.

The lx_kit is split into several layers whose structure is as follows:

The first layer in _repos/dde_linux/src/include/lx_emul_ contains those
header files that provide the structural definitions and function
declarations of the Linux API, e.g. _errno.h_ provides all error code
values. The second layer in _repos/dde_linux/src/include/lx_emul/impl_
contains the implementation of selected functions, e.g. _slab.h_
provides the implementation of 'kmalloc()'. The lx_kit back end API is
the third layer and provides the _Lx::Malloc_ interface
(_repos/dde_linux/src/include/lx_kit/malloc.h_) which is used to
implement 'kmalloc()'. There are several generic implementations of the
lx_kit interfaces that can be used by a driver.

A driver typically includes a 'lx_emul/impl/xyz.h' header once
directly in its lx_emul compilation unit. The lx_kit interface files
are only included in those compilation units that use or implement the
interface. If a driver wants to use a generic implementation it must
add the source file to its source file list. The generic
implementations are located in _repos/dde_linux/src/lx_kit/_.

The modular lx_kit still depends on the private _lx_emul.h_ header file
that is tailored to each driver. Since the lx_kit already contains much
of the declarations and definitions that were originally placed in
these private header files, those files can now ommit a large amount
of code.

Fixes #1974.
2016-05-26 15:54:10 +02:00