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nixos: use usb_block_drv for USB storage

This commit is contained in:
Ehmry - 2020-12-19 15:23:35 +01:00
parent 64d8f03cc1
commit e899a3642e
1 changed files with 74 additions and 36 deletions
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110
nixos-modules/hardware/usb.nix
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@ -3,24 +3,27 @@
with lib;
{
options = {
options.hardware.genode.usb = {
hardware.usb.genode.enable = lib.mkEnableOption "USB driver";
enable = lib.mkEnableOption "USB driver";
storage.enable = lib.mkEnableOption "USB mass storage driver";
hardware.usb.genode.storage.enable =
lib.mkEnableOption "USB mass storage driver";
ehciSupport = lib.mkEnableOption "EHCI support" // { default = true; };
ohciSupport = lib.mkEnableOption "OHCI support" // { default = true; };
uhciSupport = lib.mkEnableOption "UHCI support" // { default = false; };
xhciSupport = lib.mkEnableOption "XHCI support" // { default = true; };
};
config = {
config = let cfg = config.hardware.genode.usb;
in {
hardware.usb.genode.storage.enable = config.genode.boot.storeBackend
hardware.genode.usb.storage.enable = config.genode.boot.storeBackend
== "usb";
hardware.usb.genode.enable = config.hardware.usb.genode.storage.enable;
hardware.genode.usb.enable = cfg.storage.enable;
hardware.genode.platform.policies =
lib.optional config.hardware.usb.genode.enable
hardware.genode.platform.policies = lib.optional cfg.enable
(builtins.toFile ("usb.platform-policy.dhall") ''
let Genode = env:DHALL_GENODE
@ -34,49 +37,84 @@ with lib;
}
'');
genode.core.basePackages = lib.optional config.hardware.usb.genode.enable
pkgs.genodePackages.usb_drv;
genode.init.children.usb_drv = lib.mkIf config.hardware.usb.genode.enable {
coreROMs = [ "usb_drv" ];
configFile = builtins.toFile "usb_drv.dhall" ''
genode.init.children.usb_drv = lib.mkIf cfg.enable {
inputs = [ pkgs.genodePackages.usb_drv ];
configFile = let toYesNo = b: if b then "yes" else "no";
in builtins.toFile "usb_drv.dhall" ''
let Genode = env:DHALL_GENODE
let XML = Genode.Prelude.XML
let Init = Genode.Init
let storageEnable = ${
if config.hardware.usb.genode.storage.enable then "True" else "False"
}
in Init.Child.flat
Init.Child.Attributes::{
, binary = "usb_drv"
, provides = [ "Block", "Usb" ]
, resources = Init.Resources::{ caps = 256, ram = Genode.units.MiB 12 }
, romReports = let local = "devices" in [ { local, route = local } ]
, routes = [ Init.ServiceRoute.parent "IO_MEM" ]
, config = Init.Config::{
, attributes = toMap { uhci = "yes", ehci = "yes", xhci = "yes" }
, content =
if storageEnable
then [ XML.leaf
{ name = "storage", attributes = XML.emptyAttributes }
]
else [] : List XML.Type
, policies =
if storageEnable
then [ Init.Config.Policy::{
, service = "Block"
, label = Init.LabelSelector.prefix "store_fs"
, config =
let storagePolicy =
Init.Config.Policy::{
, service = "Usb"
, label = Init.LabelSelector.prefix "usb_block_drv"
, attributes = toMap { class = "8" }
, diag = Some True
}
in Init.Config::{
, attributes = toMap
{ ehci = "${toYesNo cfg.ehciSupport}"
, ohci = "${toYesNo cfg.ohciSupport}"
, uhci = "${toYesNo cfg.uhciSupport}"
, xhci = "${toYesNo cfg.xhciSupport}"
}
, content =
[ XML.element
{ name = "raw"
, attributes = XML.emptyAttributes
, content =
[ XML.leaf
{ name = "report"
, attributes = toMap { devices = "yes" }
}
, Init.Config.Policy.toXML storagePolicy
]
}
]
else [] : List Init.Config.Policy.Type
}
]
, policies = [ storagePolicy ]
}
}
'';
};
genode.core.children.usb_block_drv =
mkIf config.hardware.genode.usb.storage.enable {
inputs = [ pkgs.genodePackages.usb_block_drv ];
configFile = builtins.toFile "usb_block_drv.dhall" ''
let Genode = env:DHALL_GENODE
let XML = Genode.Prelude.XML
let Init = Genode.Init
in Init.Child.flat
Init.Child.Attributes::{
, binary = "usb_block_drv"
, resources = Init.Resources::{ caps = 256, ram = Genode.units.MiB 4 }
, config = Init.Config::{
, attributes = toMap { writeable = "yes" }
, policies =
[ Init.Config.Policy::{
, service = "Block"
, label = Init.LabelSelector.prefix "part_block"
}
]
}
}
'';
};
};
}