mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-19 09:59:04 +00:00
da00d9a546
This is a bunch of compile fixes provoked by building UML with gcc 4. There are a bunch of signedness mismatches, a couple of uninitialized references, and a botched C99 structure initialization which had somehow gone unnoticed. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#ifndef __UM_SLIP_PROTO_H__
|
|
#define __UM_SLIP_PROTO_H__
|
|
|
|
/* SLIP protocol characters. */
|
|
#define SLIP_END 0300 /* indicates end of frame */
|
|
#define SLIP_ESC 0333 /* indicates byte stuffing */
|
|
#define SLIP_ESC_END 0334 /* ESC ESC_END means END 'data' */
|
|
#define SLIP_ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */
|
|
|
|
static inline int slip_unesc(unsigned char c, unsigned char *buf, int *pos,
|
|
int *esc)
|
|
{
|
|
int ret;
|
|
|
|
switch(c){
|
|
case SLIP_END:
|
|
*esc = 0;
|
|
ret=*pos;
|
|
*pos=0;
|
|
return(ret);
|
|
case SLIP_ESC:
|
|
*esc = 1;
|
|
return(0);
|
|
case SLIP_ESC_ESC:
|
|
if(*esc){
|
|
*esc = 0;
|
|
c = SLIP_ESC;
|
|
}
|
|
break;
|
|
case SLIP_ESC_END:
|
|
if(*esc){
|
|
*esc = 0;
|
|
c = SLIP_END;
|
|
}
|
|
break;
|
|
}
|
|
buf[(*pos)++] = c;
|
|
return(0);
|
|
}
|
|
|
|
static inline int slip_esc(unsigned char *s, unsigned char *d, int len)
|
|
{
|
|
unsigned char *ptr = d;
|
|
unsigned char c;
|
|
|
|
/*
|
|
* Send an initial END character to flush out any
|
|
* data that may have accumulated in the receiver
|
|
* due to line noise.
|
|
*/
|
|
|
|
*ptr++ = SLIP_END;
|
|
|
|
/*
|
|
* For each byte in the packet, send the appropriate
|
|
* character sequence, according to the SLIP protocol.
|
|
*/
|
|
|
|
while (len-- > 0) {
|
|
switch(c = *s++) {
|
|
case SLIP_END:
|
|
*ptr++ = SLIP_ESC;
|
|
*ptr++ = SLIP_ESC_END;
|
|
break;
|
|
case SLIP_ESC:
|
|
*ptr++ = SLIP_ESC;
|
|
*ptr++ = SLIP_ESC_ESC;
|
|
break;
|
|
default:
|
|
*ptr++ = c;
|
|
break;
|
|
}
|
|
}
|
|
*ptr++ = SLIP_END;
|
|
return (ptr - d);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
|
* adjust the settings for this buffer only. This must remain at the end
|
|
* of the file.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|