53 lines
1.3 KiB
Lua
53 lines
1.3 KiB
Lua
do
|
|
local tG,ttyn = {}, 0
|
|
|
|
local function checkUnused(addr) -- returns false if a screen *addr* is already allocated to a GPU
|
|
for k,v in pairs(tG) do
|
|
if v == addr then
|
|
return false
|
|
end
|
|
end
|
|
return true
|
|
end
|
|
local function findNextDisplay() -- finds the next available screen, or nil if there are no available screens
|
|
for a,_ in component.list("screen") do
|
|
if checkUnused(a) then
|
|
return a
|
|
end
|
|
end
|
|
return nil
|
|
end
|
|
|
|
for file in ipairs(fs.list("/boot/cfg/disp/")) do -- allows files in /boot/cfg/disp with filenames as GPU addresses to bind to specific screens
|
|
if component.proxy(file) then
|
|
local f = io.open("/boot/cfg/disp/"..file)
|
|
if f then
|
|
local sA = file:read()
|
|
if checkUnused(sA) then
|
|
tG[file] = sA
|
|
end
|
|
f:close()
|
|
end
|
|
end
|
|
end
|
|
|
|
for a,_ in component.list("gpu") do -- allocate a screen to every unused GPU
|
|
tG[a] = findNextDisplay()
|
|
end
|
|
|
|
for gpu,screen in pairs(tG) do
|
|
dprint(gpu,screen)
|
|
local r,w = vtemu(gpu,screen)
|
|
iofs.register("tty"..tostring(ttyn),function() return r,w,function() w("\27[2J\27[H") end end)
|
|
local f = io.open("/iofs/tty"..tostring(ttyn),"rw")
|
|
fd[f.fd].t = "t"
|
|
ttyn = ttyn + 1
|
|
end
|
|
do
|
|
iofs.register("syslog",function() return function() return "" end, function(msg) syslog(msg,nil,tTasks[cPid].n) end, function() return true end end)
|
|
end
|
|
if #fd < 1 then
|
|
io.open("/iofs/syslog","rw")
|
|
end
|
|
end
|