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134 lines
3.5 KiB
Plaintext
134 lines
3.5 KiB
Plaintext
Device drivers ported from the Linux kernel
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USB
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###
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Controller configuration
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~~~~~~~~~~~~~~~~~~~~~~~~
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The driver can be started using different or all USB controller types a platform
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offers (USB 1.0/2.0/3.0). Note that not all controllers are supported by all
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platforms. Controllers can be enabled as attribute in the config node of the
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driver. Supported attributes are: 'uhci', 'ehci', and 'xhci'.
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Configuration snippet to enable UHCI and EHCI
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! <config uhci="yes" ehci="yes">
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HID
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~~~
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Supports keyboard and mouse. A run script can be found under 'run/usb_hid.run'.
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Configuration snippet:
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!<start name="usb_drv">
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! <resource name="RAM" quantum="3M"/>
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! <provides><service name="Input"/></provides>
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! <config uhci="yes" ehci="yes" xhci="yes">
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! <hid/>
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! </config>
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!</start>
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Note: It has been observed that certain 1.0 versions of Qemu do not generate
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mouse interrupts. The mouse driver should work correctly on Qemu 1.0.93 and
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above.
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HID - Touchscreen support
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~~~~~~~~~~~~~~~~~~~~~~~~~
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Touchscreen absolute coordinates must be calibrated (e.g. re-calculated) to
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screen absolute coordinates. The screen resolution is not determined
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automatically by the USB driver, but can be configured as sub node of the
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hid xml tag:
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!...
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!<hid>
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! <screen x="1024" y="768"/>
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!<hid/>
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!...
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Storage
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~~~~~~~
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Currently supports one USB storage device. Hot plugging has not been tested. A
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run script can be found under 'run/usb_storage.run'.
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Configuration snippet:
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!<start name="usb_drv">
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! <resource name="RAM" quantum="2M"/>
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! <provides> <service name="Block"/> </provides>
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! <config><storage /></config>
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!</start uhci="yes">
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Network (Nic)
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~~~~~~~~~~~~~
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Configuration snippet:
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!<start name="usb_drv">
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! <resource name="RAM" quantum="3M"/>
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! <provides>
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! <service name="Nic"/>
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! <service name="Input"/>
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! </provides>
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! <config ehci="yes" xhci="yes">
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! <nic mac="2e:60:90:0c:4e:01" />
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! <hid/>
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! </config>
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!</start>
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Please observe that this setup starts the HID and Nic service at the same time.
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Also there is the 'mac' attribute where one can specify the hardware address of
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the network interface. This is necessary in case the EEPROM of the network card
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cannot be accessed via the host controller making it impossible to retrieve the
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devices hardware address. If this is the case and no 'mac' attribute is given a
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fallback address will be assigned to the network device. Note that the fallback
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address will always be the same.
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LXIP
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####
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LXIP is a port of the Linux TCP/IP stack to Genode. It is build as a shared
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library named 'lxip.lib.so'. The IP stack can be interfaced using Genode's
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version of 'libc' by linking your application to 'lxip_libc' plugin in your
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'target.mk' file.
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WIFI
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####
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The wifi_drv component is a port of the Linux mac802.11 stack, including the
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iwlwifi driver as well as libnl and wpa_supplicant, to Genode.
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Configuration snippet:
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!<start name="wifi_drv">
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! <resource name="RAM" quantum="32M"/>
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! <provides><service name="Nic"/></provides>
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! <config>
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! <libc stdout="/dev/log" stderr="/dev/log" rtc="/dev/rtc">
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! <vfs>
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! <dir name="dev"> <log/> <rtc/>
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! <jitterentropy name="random"/>
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! <jitterentropy name="urandom"/>
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! </dir>
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! <inline name="wpa_supplicant.conf">
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!network={
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! id_str="foobar"
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! ssid="foobar"
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! key_mgmt=WPA-PSK
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! psk="foobarfoobar"
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!}
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! </inline>
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! </vfs>
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! </libc>
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! </config>
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! <route>
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! <service name="Rtc"> <any-child /> </service>
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! <any-service> <parent/> <any-child /> </any-service>
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! </route>
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!</start
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