diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/common/xisb.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/common/xisb.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/common/xisb.c b/nx-X11/programs/Xserver/hw/xfree86/common/xisb.c deleted file mode 100644 index 4ffc3ede4..000000000 --- a/nx-X11/programs/Xserver/hw/xfree86/common/xisb.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * Copyright (c) 1997 Metro Link Incorporated - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of the Metro Link shall not be - * used in advertising or otherwise to promote the sale, use or other dealings - * in this Software without prior written authorization from Metro Link. - * - */ -/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xisb.c,v 1.5 2000/11/06 19:24:07 dawes Exp $ */ - -/* - X Input Serial Buffer routines for use in any XInput driver that accesses - a serial device. -*/ - - -/***************************************************************************** - * Standard Headers - ****************************************************************************/ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#ifdef __UNIXOS2__ -#define I_NEED_OS2_H -#endif - -#include <misc.h> -#include <xf86.h> -#include <xf86Version.h> -#include <xf86_OSproc.h> -#include <xf86_OSlib.h> -#include <xf86Xinput.h> -#include "xisb.h" - -/***************************************************************************** - * Local Headers - ****************************************************************************/ - -/***************************************************************************** - * Variables without includable headers - ****************************************************************************/ - -/***************************************************************************** - * Local Variables - ****************************************************************************/ - -/***************************************************************************** - * Function Definitions - ****************************************************************************/ - -XISBuffer * -XisbNew (int fd, xf86ssize_t size) -{ - XISBuffer *b; - - b = xalloc (sizeof (XISBuffer)); - if (!b) - return (NULL); - b->buf = xalloc ((sizeof (unsigned char) * size)); - if (!b->buf) - { - xfree (b); - return (NULL); - } - - b->fd = fd; - b->trace = 0; - b->block_duration = 0; - b->current = 1; /* force it to be past the end to trigger initial read */ - b->end = 0; - b->buffer_size = size; - return (b); -} - -void -XisbFree (XISBuffer *b) -{ - xfree (b->buf); - xfree (b); -} - -int -XisbRead (XISBuffer *b) -{ - int ret; - - if (b->current >= b->end) - { - if (b->block_duration >= 0) - { - if (xf86WaitForInput (b->fd, b->block_duration) < 1) - return (-1); - } - else - { - /* - * automatically clear it so if XisbRead is called in a loop - * the next call will make sure there is data with select and - * thus prevent a blocking read - */ - b->block_duration = 0; - } - - ret = xf86ReadSerial (b->fd, b->buf, b->buffer_size); - switch (ret) - { - case 0: - return (-1); /* timeout */ - case -1: - return (-2); /* error */ - default: - b->end = ret; - b->current = 0; - break; - } - } - if (b->trace) - ErrorF ("read 0x%02x (%c)\n", b->buf[b->current], - isprint(b->buf[b->current])?b->buf[b->current]:'.'); - - return (b->buf[b->current++]); -} - -/* the only purpose of this function is to provide output tracing */ -xf86ssize_t -XisbWrite (XISBuffer *b, unsigned char *msg, xf86ssize_t len) -{ - if (b->trace) - { - int i = 0; - for (i = 0; i < len; i++) - ErrorF ("\t\twrote 0x%02x (%c)\n", msg[i], msg[i]); - } - return (xf86WriteSerial (b->fd, msg, len)); -} - -/* turn tracing of this buffer on (1) or off (0) */ -void -XisbTrace (XISBuffer *b, int trace) -{ - b->trace = trace; -} - -/* - * specify a block_duration of -1 when you know the buffer's fd is ready to - * read. After a read, it is automatically set to 0 so that the next read - * will use check to select for data and prevent a block. - * It is the caller's responsibility to set the block_duration to -1 if it - * knows that there is data to read (because the main select loop triggered - * the read) and want's to avoid the unnecessary overhead of the select call - * - * a zero or positive block duration will cause the select to block for the - * give duration in usecs. - */ - -void -XisbBlockDuration (XISBuffer *b, int block_duration) -{ - b->block_duration = block_duration; -} |