mirror of
git://projects.qi-hardware.com/iris.git
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83 lines
2.9 KiB
COBOL
83 lines
2.9 KiB
COBOL
#pypp 0
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// Iris: micro-kernel for a capability-based operating system.
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// source/display-emu.ccp: Display interface emulation layer.
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// Copyright 2009 Bas Wijnen <wijnen@debian.org>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <devices.hh>
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#include <iris.hh>
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Kernel::Num start ():
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Device d = Kernel::my_receiver.create_capability (0)
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Kernel::my_parent.provide_device <Display> (d.copy (), 0x10000)
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Kernel::free_cap (d)
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Kernel::my_parent.init_done ()
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Display real = Kernel::my_parent.get_device <Display> (0)
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while true:
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Kernel::wait ()
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Kernel::Cap arg = Kernel::get_arg ()
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Kernel::Cap reply = Kernel::get_reply ()
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switch Kernel::recv.protected_data.h:
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case 0:
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switch Kernel::recv.data[0].l:
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case Device::CREATE_USER:
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Kernel::Memory mem (arg)
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Kernel::Caps ret = mem.create_caps (3)
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Kernel::Cap target = Kernel::my_receiver.create_capability (Kernel::Num (0, 1))
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ret.set (0, target.copy ())
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ret.set (1, mem)
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Kernel::free_cap (target)
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for unsigned i = 0; i < 320 * 240 * 4; i += PAGE_SIZE:
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Kernel::Page p = Kernel::my_memory.mapping ((void *)(0x15000 + i))
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Kernel::Page t = mem.create_page ()
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t.set_flags (Kernel::Page::PAYING, Kernel::Page::PAYING)
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p.share (t, Kernel::Page::FORGET)
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mem.map (t, 0x15000 + i)
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Kernel::my_memory.destroy (t)
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Kernel::free_cap (t)
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Kernel::free_cap (p)
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reply.invoke (0, 0, ret.copy ())
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Kernel::free_cap (ret)
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break
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case Device::DESTROY_USER:
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Kernel::panic (0, "destroying emulation user")
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case Device::USE:
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case Device::UNUSE:
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reply.invoke ()
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break
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default:
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kdebug_num (Kernel::recv.data[0].l)
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kdebug ("\n")
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Kernel::panic (0, "invalid emulation command")
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break
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case 1:
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switch Kernel::recv.data[0].l:
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case Display::SET_EOF_CB:
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real.set_eof_cb (arg.copy ())
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while Kernel::recv.data[0].l != 0:
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Kernel::my_parent.wait <Display> (0)
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real.set_eof_cb (arg.copy ())
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reply.invoke ()
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break
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default:
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kdebug_num (Kernel::recv.data[0].l)
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kdebug_char ('\n')
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Kernel::panic (Kernel::recv.data[0].l, "invalid operation on display emulation")
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break
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default:
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Kernel::panic (0, "bug in display emulation")
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Kernel::free_cap (arg)
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Kernel::free_cap (reply)
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