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genode/dde_linux/README

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New DDE-Linux-based USB driver The new 'dde_linux' repository will host device drivers ported from the Linux kernel. In contrast to the original 'linux_drivers' repository, 'dde_linux' does not contain any 3rd-party source code. To download the Linux kernel source code and extract the drivers, execute the 'make prepare' rule of the top-level Makefile. The initial version of the 'dde_linux' repository comes with an USB driver. The porting methodology follows the path of the Intel GEM port. Instead of attempting to provide a generic Linux environment that works across drivers, each driver comes with a specially tailored DDE. The DDE consists of Genode-specific implementations of Linux API functions as declared in 'lx_emul.h'. Most of these functions are dummies that must merely be provided to resolve dependencies at the linking stage. They are called by unused code-paths. As of now, the USB driver support UHCI, EHCI on the x86_32 platform. I exposes USB HID devices and USB storage devices via Genode's input-session and block-session respectively. The USB driver is accompanied with two run scripts 'run/usb_hid.run' and 'run/usb_storage.run'.
2012-05-24 19:31:02 +00:00
Device drivers ported from the Linux kernel
USB
###
usb: Make host controller types configurable The host controller type (u/e/xhci) usded by the drivers can be configured through attributes of the config node. See: README
2013-05-17 12:40:48 +00:00
Controller configuration
~~~~~~~~~~~~~~~~~~~~~~~~
The driver can be started using different or all USB controller types a platform
offers (USB 1.0/2.0/3.0). Note that not all controllers are supported by all
platforms. Controllers can be enabled as attribute in the config node of the
driver. Supported attributes are: 'uhci', 'ehci', and 'xhci'.
Configuration snippet to enable UHCI and EHCI
! <config uhci="yes" ehci="yes">
New DDE-Linux-based USB driver The new 'dde_linux' repository will host device drivers ported from the Linux kernel. In contrast to the original 'linux_drivers' repository, 'dde_linux' does not contain any 3rd-party source code. To download the Linux kernel source code and extract the drivers, execute the 'make prepare' rule of the top-level Makefile. The initial version of the 'dde_linux' repository comes with an USB driver. The porting methodology follows the path of the Intel GEM port. Instead of attempting to provide a generic Linux environment that works across drivers, each driver comes with a specially tailored DDE. The DDE consists of Genode-specific implementations of Linux API functions as declared in 'lx_emul.h'. Most of these functions are dummies that must merely be provided to resolve dependencies at the linking stage. They are called by unused code-paths. As of now, the USB driver support UHCI, EHCI on the x86_32 platform. I exposes USB HID devices and USB storage devices via Genode's input-session and block-session respectively. The USB driver is accompanied with two run scripts 'run/usb_hid.run' and 'run/usb_storage.run'.
2012-05-24 19:31:02 +00:00
HID
~~~
Supports keyboard and mouse. A run script can be found under 'run/usb_hid.run'.
Configuration snippet:
!<start name="usb_drv">
! <resource name="RAM" quantum="3M"/>
! <provides><service name="Input"/></provides>
usb: Make host controller types configurable The host controller type (u/e/xhci) usded by the drivers can be configured through attributes of the config node. See: README
2013-05-17 12:40:48 +00:00
! <config uhci="yes" ehci="yes" xhci="yes">
New DDE-Linux-based USB driver The new 'dde_linux' repository will host device drivers ported from the Linux kernel. In contrast to the original 'linux_drivers' repository, 'dde_linux' does not contain any 3rd-party source code. To download the Linux kernel source code and extract the drivers, execute the 'make prepare' rule of the top-level Makefile. The initial version of the 'dde_linux' repository comes with an USB driver. The porting methodology follows the path of the Intel GEM port. Instead of attempting to provide a generic Linux environment that works across drivers, each driver comes with a specially tailored DDE. The DDE consists of Genode-specific implementations of Linux API functions as declared in 'lx_emul.h'. Most of these functions are dummies that must merely be provided to resolve dependencies at the linking stage. They are called by unused code-paths. As of now, the USB driver support UHCI, EHCI on the x86_32 platform. I exposes USB HID devices and USB storage devices via Genode's input-session and block-session respectively. The USB driver is accompanied with two run scripts 'run/usb_hid.run' and 'run/usb_storage.run'.
2012-05-24 19:31:02 +00:00
! <hid/>
! </config>
!</start>
Note: It has been observed that certain 1.0 versions of Qemu do not generate
mouse interrupts. The mouse driver should work correctly on Qemu 1.0.93 and
above.
USB: Support usbnet and smsc95xx for omap4
2012-06-25 14:31:04 +00:00
Storage
New DDE-Linux-based USB driver The new 'dde_linux' repository will host device drivers ported from the Linux kernel. In contrast to the original 'linux_drivers' repository, 'dde_linux' does not contain any 3rd-party source code. To download the Linux kernel source code and extract the drivers, execute the 'make prepare' rule of the top-level Makefile. The initial version of the 'dde_linux' repository comes with an USB driver. The porting methodology follows the path of the Intel GEM port. Instead of attempting to provide a generic Linux environment that works across drivers, each driver comes with a specially tailored DDE. The DDE consists of Genode-specific implementations of Linux API functions as declared in 'lx_emul.h'. Most of these functions are dummies that must merely be provided to resolve dependencies at the linking stage. They are called by unused code-paths. As of now, the USB driver support UHCI, EHCI on the x86_32 platform. I exposes USB HID devices and USB storage devices via Genode's input-session and block-session respectively. The USB driver is accompanied with two run scripts 'run/usb_hid.run' and 'run/usb_storage.run'.
2012-05-24 19:31:02 +00:00
~~~~~~~
Currently supports one USB storage device. Hot plugging has not been tested. A
run script can be found under 'run/usb_storage.run'.
Configuration snippet:
!<start name="usb_drv">
! <resource name="RAM" quantum="2M"/>
! <provides> <service name="Block"/> </provides>
! <config><storage /></config>
usb: Make host controller types configurable The host controller type (u/e/xhci) usded by the drivers can be configured through attributes of the config node. See: README
2013-05-17 12:40:48 +00:00
!</start uhci="yes">
USB: Support usbnet and smsc95xx for omap4
2012-06-25 14:31:04 +00:00
Network (Nic)
~~~~~~~~~~~~~
Configuration snippet:
!<start name="usb_drv">
! <resource name="RAM" quantum="3M"/>
! <provides>
! <service name="Nic"/>
! <service name="Input"/>
! </provides>
usb: Make host controller types configurable The host controller type (u/e/xhci) usded by the drivers can be configured through attributes of the config node. See: README
2013-05-17 12:40:48 +00:00
! <config ehci="yes" xhci="yes">
USB: Support usbnet and smsc95xx for omap4
2012-06-25 14:31:04 +00:00
! <nic mac="2e:60:90:0c:4e:01" />
! <hid/>
! </config>
!</start>
Please observe that this setup starts the HID and Nic service at the same time.
Also there is the 'mac' attribute where one can specify the hardware address of
the network interface. This is necessary in case the EEPROM of the network card
cannot be accessed via the host controller making it impossible to retrieve the
devices hardware address. If this is the case and no 'mac' attribute is given a
fallback address will be assigned to the network device. Note that the fallback
address will always be the same.
lxip: Port of the Linux TCP/IP stack
2013-08-26 11:58:58 +00:00
LXIP
####
LXIP is a port of the Linux TCP/IP stack to Genode. It is build as a shared
library named 'lxip.lib.so'. The IP stack can be interfaced using Genode's
version of 'libc' by linking your application to 'lxip_libc' plugin in your
'target.mk' file.
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