1 /* 2 * CPM client to access CPM servers. 3 * 4 * Copyright (C) 2018, 2020 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 <l4/cxx/ipc_stream> 23 #include <l4/re/env> 24 25 #include "cpm-client.h" 26 #include "cpm-ops.h" 27 28 int 29 Cpm_device_interface::get_lcd_pixel_frequency(uint32_t *frequency) throw() 30 { 31 L4::Ipc::Iostream s(l4_utcb()); 32 int err = l4_error(s.call(cap(), Cpm_op_get_lcd_pixel_frequency)); 33 uint32_t _frequency; 34 35 if (err) 36 return err; 37 38 s >> _frequency; 39 *frequency = _frequency; 40 return L4_EOK; 41 } 42 43 int 44 Cpm_device_interface::set_hdmi_frequency(uint32_t frequency) throw() 45 { 46 L4::Ipc::Iostream s(l4_utcb()); 47 48 s << frequency; 49 50 return l4_error(s.call(cap(), Cpm_op_set_hdmi_frequency)); 51 } 52 53 int 54 Cpm_device_interface::start_hdmi() throw() 55 { 56 L4::Ipc::Iostream s(l4_utcb()); 57 58 return l4_error(s.call(cap(), Cpm_op_start_hdmi)); 59 } 60 61 int 62 Cpm_device_interface::stop_hdmi() throw() 63 { 64 L4::Ipc::Iostream s(l4_utcb()); 65 66 return l4_error(s.call(cap(), Cpm_op_stop_hdmi)); 67 } 68 69 int 70 Cpm_device_interface::set_lcd_frequencies(uint32_t pclk, uint8_t multiplier) throw() 71 { 72 L4::Ipc::Iostream s(l4_utcb()); 73 74 s << pclk << multiplier; 75 76 return l4_error(s.call(cap(), Cpm_op_set_lcd_frequencies)); 77 } 78 79 int 80 Cpm_device_interface::start_lcd() throw() 81 { 82 L4::Ipc::Iostream s(l4_utcb()); 83 84 return l4_error(s.call(cap(), Cpm_op_start_lcd)); 85 } 86 87 int 88 Cpm_device_interface::stop_lcd() throw() 89 { 90 L4::Ipc::Iostream s(l4_utcb()); 91 92 return l4_error(s.call(cap(), Cpm_op_stop_lcd)); 93 } 94 95 int 96 Cpm_device_interface::update_output_frequency() throw() 97 { 98 L4::Ipc::Iostream s(l4_utcb()); 99 100 return l4_error(s.call(cap(), Cpm_op_update_output_frequency)); 101 }