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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | 2bda8f7717adf28da4af0d34fb82f63d2868c31d (patch) | |
tree | 8d927b7b47a90c4adb646482a52613f58acd6f8c /klaptopdaemon/linux/mem_op.h | |
download | tdeutils-2bda8f7717adf28da4af0d34fb82f63d2868c31d.tar.gz tdeutils-2bda8f7717adf28da4af0d34fb82f63d2868c31d.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeutils@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'klaptopdaemon/linux/mem_op.h')
-rw-r--r-- | klaptopdaemon/linux/mem_op.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/klaptopdaemon/linux/mem_op.h b/klaptopdaemon/linux/mem_op.h new file mode 100644 index 0000000..85f1ba2 --- /dev/null +++ b/klaptopdaemon/linux/mem_op.h @@ -0,0 +1,120 @@ +/* + * mem_op.h 1.8 1998/07/17 10:12:23 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.0 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License + * at http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and + * limitations under the License. + * + * The initial developer of the original code is David A. Hinds + * <dhinds@hyper.stanford.edu>. Portions created by David A. Hinds + * are Copyright (C) 1998 David A. Hinds. All Rights Reserved. + */ + +#ifndef _LINUX_MEM_OP_H +#define _LINUX_MEM_OP_H + +/* + If UNSAFE_MEMCPY is defined, we use the (optimized) system routines + to copy between a card and kernel memory. These routines do 32-bit + operations which may not work with all PCMCIA controllers. The + safe versions defined here will do only 8-bit and 16-bit accesses. +*/ + +#ifdef UNSAFE_MEMCPY + +#define copy_from_pc memcpy_fromio +#define copy_to_pc memcpy_toio + +static inline void copy_pc_to_user(void *to, const void *from, size_t n) +{ + size_t odd = (n & 3); + n -= odd; + while (n) { + put_user(readl_ns(from), (int *)to); + (char *)from += 4; (char *)to += 4; n -= 4; + } + while (odd--) + put_user(readb((char *)from++), (char *)to++); +} + +static inline void copy_user_to_pc(void *to, const void *from, size_t n) +{ + int l; + char c; + size_t odd = (n & 3); + n -= odd; + while (n) { + get_user(l, (int *)from); + writel_ns(l, to); + (char *)to += 4; (char *)from += 4; n -= 4; + } + while (odd--) { + get_user(c, (char *)from++); + writeb(c, (char *)to++); + } +} + +#else /* UNSAFE_MEMCPY */ + +static inline void copy_from_pc(void *to, const void *from, size_t n) +{ + size_t odd = (n & 1); + n -= odd; + while (n) { + *(u_short *)to = readw_ns(from); + (char *)to += 2; (char *)from += 2; n -= 2; + } + if (odd) + *(u_char *)to = readb(from); +} + +static inline void copy_to_pc(void *to, const void *from, size_t n) +{ + size_t odd = (n & 1); + n -= odd; + while (n) { + writew_ns(*(u_short *)from, to); + (char *)to += 2; (char *)from += 2; n -= 2; + } + if (odd) + writeb(*(u_char *)from, to); +} + +static inline void copy_pc_to_user(void *to, const void *from, size_t n) +{ + size_t odd = (n & 1); + n -= odd; + while (n) { + put_user(readw_ns(from), (short *)to); + (char *)to += 2; (char *)from += 2; n -= 2; + } + if (odd) + put_user(readb(from), (char *)to); +} + +static inline void copy_user_to_pc(void *to, const void *from, size_t n) +{ + short s; + char c; + size_t odd = (n & 1); + n -= odd; + while (n) { + get_user(s, (short *)from); + writew_ns(s, to); + (char *)to += 2; (char *)from += 2; n -= 2; + } + if (odd) { + get_user(c, (char *)from); + writeb(c, to); + } +} + +#endif /* UNSAFE_MEMCPY */ + +#endif /* _LINUX_MEM_OP_H */ |