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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/hw/xfree86/common/xisb.c | |
download | vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2 vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip |
Checked in the following released items:
xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/hw/xfree86/common/xisb.c')
-rw-r--r-- | xorg-server/hw/xfree86/common/xisb.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/common/xisb.c b/xorg-server/hw/xfree86/common/xisb.c new file mode 100644 index 000000000..d021ec15b --- /dev/null +++ b/xorg-server/hw/xfree86/common/xisb.c @@ -0,0 +1,175 @@ +/* + * 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. + * + */ + +/* + 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 + +#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 + ****************************************************************************/ + +_X_EXPORT XISBuffer * +XisbNew (int fd, ssize_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); +} + +_X_EXPORT void +XisbFree (XISBuffer *b) +{ + xfree (b->buf); + xfree (b); +} + +_X_EXPORT 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 */ +_X_EXPORT ssize_t +XisbWrite (XISBuffer *b, unsigned char *msg, ssize_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) */ +_X_EXPORT 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. + */ + +_X_EXPORT void +XisbBlockDuration (XISBuffer *b, int block_duration) +{ + b->block_duration = block_duration; +} |