1 /* 2 * Common framebuffer server functionality. 3 * 4 * Copyright (C) 2018 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include "fb-client.h" 23 #include "fb-server.h" 24 #include "fb-ops.h" 25 26 #include <l4/cxx/ipc_server> 27 #include <l4/re/env> 28 #include <l4/sys/typeinfo_svr> 29 #include <l4/util/util.h> 30 31 #include <stdint.h> 32 33 /* Handle invocations. */ 34 35 int 36 Framebuffer_server::dispatch(l4_umword_t obj, L4::Ipc::Iostream &ios) 37 { 38 l4_msgtag_t tag; 39 40 (void) obj; 41 ios >> tag; 42 43 switch (tag.label()) 44 { 45 case L4::Meta::Protocol: 46 return L4::Util::handle_meta_request<Framebuffer_device_interface>(ios); 47 48 case Framebuffer_op_get_framebuffer: 49 ios << _mem; 50 return L4_EOK; 51 52 case Framebuffer_op_get_framebuffer_size: 53 ios << get_framebuffer_size(); 54 return L4_EOK; 55 56 case Framebuffer_op_get_view_info: 57 l4re_video_view_info_t view_info; 58 get_view_info(&view_info); 59 60 /* Serialise the view information structure. */ 61 62 ios << L4::Ipc::buf_cp_out<uint8_t>((uint8_t *) &view_info, sizeof(view_info)); 63 return L4_EOK; 64 65 default: 66 return -L4_EBADPROTO; 67 } 68 }