| paul@0 | 1 | /* |
| paul@0 | 2 | * Panel client to access panel servers. |
| paul@0 | 3 | * |
| paul@0 | 4 | * (c) 2018 Paul Boddie <paul@boddie.org.uk> |
| paul@0 | 5 | * |
| paul@0 | 6 | * This program is free software; you can redistribute it and/or |
| paul@0 | 7 | * modify it under the terms of the GNU General Public License as |
| paul@0 | 8 | * published by the Free Software Foundation; either version 2 of |
| paul@0 | 9 | * the License, or (at your option) any later version. |
| paul@0 | 10 | * |
| paul@0 | 11 | * This program is distributed in the hope that it will be useful, |
| paul@0 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| paul@0 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| paul@0 | 14 | * GNU General Public License for more details. |
| paul@0 | 15 | * |
| paul@0 | 16 | * You should have received a copy of the GNU General Public License |
| paul@0 | 17 | * along with this program; if not, write to the Free Software |
| paul@0 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| paul@0 | 19 | * Boston, MA 02110-1301, USA |
| paul@0 | 20 | */ |
| paul@0 | 21 | |
| paul@0 | 22 | #include <l4/cxx/ipc_stream> |
| paul@0 | 23 | #include <l4/re/env> |
| paul@0 | 24 | #include <l4/sys/err.h> |
| paul@0 | 25 | |
| paul@0 | 26 | #include "panel-client.h" |
| paul@0 | 27 | #include "panel-ops.h" |
| paul@0 | 28 | |
| paul@0 | 29 | #include <stdint.h> |
| paul@0 | 30 | |
| paul@0 | 31 | int |
| paul@0 | 32 | Panel_device_interface::get_panel(uint8_t *data, unsigned long datalen) throw() |
| paul@0 | 33 | { |
| paul@0 | 34 | L4::Ipc::Iostream s(l4_utcb()); |
| paul@0 | 35 | |
| paul@0 | 36 | int err = l4_error(s.call(cap(), Panel_op_get_panel)); |
| paul@0 | 37 | if (err) return err; |
| paul@0 | 38 | |
| paul@0 | 39 | // Obtain the message from the stream. |
| paul@0 | 40 | |
| paul@0 | 41 | unsigned long size = datalen; |
| paul@0 | 42 | s >> L4::Ipc::buf_cp_in<uint8_t>(data, datalen); |
| paul@0 | 43 | |
| paul@0 | 44 | if (size != datalen) return -L4_EIO; |
| paul@0 | 45 | return L4_EOK; |
| paul@0 | 46 | } |
