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001 /* Copyright (C) 2004 David Decotigny 001 /* Copyright (C) 2004 David Decotigny 002 Copyright (C) 1999 Free Software Foundatio 002 Copyright (C) 1999 Free Software Foundation, Inc. 003 003 004 This program is free software; you can redi 004 This program is free software; you can redistribute it and/or 005 modify it under the terms of the GNU Genera 005 modify it under the terms of the GNU General Public License 006 as published by the Free Software Foundatio 006 as published by the Free Software Foundation; either version 2 007 of the License, or (at your option) any lat 007 of the License, or (at your option) any later version. 008 008 009 This program is distributed in the hope tha 009 This program is distributed in the hope that it will be useful, 010 but WITHOUT ANY WARRANTY; without even the 010 but WITHOUT ANY WARRANTY; without even the implied warranty of 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 012 GNU General Public License for more details 012 GNU General Public License for more details. 013 013 014 You should have received a copy of the GNU 014 You should have received a copy of the GNU General Public License 015 along with this program; if not, write to t 015 along with this program; if not, write to the Free Software 016 Foundation, Inc., 59 Temple Place - Suite 3 016 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 017 USA. 017 USA. 018 */ 018 */ 019 #ifndef _SOS_i8259_H_ 019 #ifndef _SOS_i8259_H_ 020 #define _SOS_i8259_H_ 020 #define _SOS_i8259_H_ 021 021 022 #include <sos/errno.h> 022 #include <sos/errno.h> 023 023 024 /** 024 /** 025 * @file i8254.h PC programmable timer 025 * @file i8254.h PC programmable timer 026 * 026 * 027 * Programmable timer routines. See the Intel 027 * Programmable timer routines. See the Intel 82C54 datasheet (on kos 028 * website). 028 * website). 029 * 029 * 030 * @see i82C54 datasheet on Kos website. 030 * @see i82C54 datasheet on Kos website. 031 */ 031 */ 032 032 033 /** Change timer interrupt (IRQ 0) frequency * 033 /** Change timer interrupt (IRQ 0) frequency */ 034 sos_ret_t sos_i8254_set_frequency(unsigned int 034 sos_ret_t sos_i8254_set_frequency(unsigned int freq); 035 035 036 #endif /* _SOS_i8259_H_ */ 036 #endif /* _SOS_i8259_H_ */
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