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author | Alex AUVOLAT <alex.auvolat@ens.fr> | 2014-03-28 09:44:01 +0100 |
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committer | Alex AUVOLAT <alex.auvolat@ens.fr> | 2014-03-28 09:44:01 +0100 |
commit | bdce62a91076aa1a076d484ce1d8564a8ba0988f (patch) | |
tree | 27fae66616a07caaa18fbbf7ce1c39d91fea6d29 /sos-code-article6/hwcore/i8254.h | |
parent | b5dc9d799f8eca793a4fd1d9b5111155ae6af6d8 (diff) | |
download | SOS-bdce62a91076aa1a076d484ce1d8564a8ba0988f.tar.gz SOS-bdce62a91076aa1a076d484ce1d8564a8ba0988f.zip |
Import article 5, does not compile.
Diffstat (limited to 'sos-code-article6/hwcore/i8254.h')
-rw-r--r-- | sos-code-article6/hwcore/i8254.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/sos-code-article6/hwcore/i8254.h b/sos-code-article6/hwcore/i8254.h new file mode 100644 index 0000000..406b713 --- /dev/null +++ b/sos-code-article6/hwcore/i8254.h @@ -0,0 +1,35 @@ +/* Copyright (C) 2004 David Decotigny + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. +*/ +#ifndef _SOS_i8259_H_ +#define _SOS_i8259_H_ + +#include <sos/errno.h> + +/** + * @file i8254.h PC programmable timer + * + * Programmable timer routines. See the Intel 82C54 datasheet (on kos + * website). + * + * @see i82C54 datasheet on Kos website. + */ + +/** Change timer interrupt (IRQ 0) frequency */ +sos_ret_t sos_i8254_set_frequency(unsigned int freq); + +#endif /* _SOS_i8259_H_ */ |