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On ARM it's relevant to not only distinguish between ordinary cached memory and write-combined one, but also having non-cached memory too. To insert the appropriated page table entries e.g.: in the base-hw kernel, we need to preserve the information about the kind of memory from allocation until the pager resolves a page fault. Therefore, this commit introduces a new Cache_attribute type, and replaces the write_combined boolean with the new type where necessary. |
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| include/lxip | ||
| lib/mk | ||
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| run | ||
| src | ||
| files.list | ||
| lxip_header.list | ||
| Makefile | ||
| README | ||
Device drivers ported from the Linux kernel USB ### 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"> 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> ! <config uhci="yes" ehci="yes" xhci="yes"> ! <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. Storage ~~~~~~~ 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> !</start uhci="yes"> Network (Nic) ~~~~~~~~~~~~~ Configuration snippet: !<start name="usb_drv"> ! <resource name="RAM" quantum="3M"/> ! <provides> ! <service name="Nic"/> ! <service name="Input"/> ! </provides> ! <config ehci="yes" xhci="yes"> ! <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 #### 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.