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AgeCommit message (Expand)AuthorFilesLines
2012-02-26Lintian Fixes.Jonathan McCrohan4-5/+22
2012-02-26Add Conflicts to -dev packagesJonathan McCrohan2-1/+4
2012-02-26Clean up rules file.Jonathan McCrohan2-25/+12
2012-02-26Revert "Clean up debian/rules"Jonathan McCrohan2-14/+24
2012-02-26Use inheritance in package descriptions in debian/controlJonathan McCrohan1-2/+0
2012-02-22Clean up debian/rulesJonathan McCrohan2-24/+14
2012-02-15Upload to experimental.debian/1.4.8-1_exp1Jonathan McCrohan1-1/+1
2012-02-12Nitpicky typos.Jonathan McCrohan2-3/+3
2012-02-12Make changes as per JCristau's advice.Jonathan McCrohan1-9/+3
2012-02-11Remove unused entries from debian/rulesJonathan McCrohan1-2/+0
2012-02-11Fix typo in bugclose changelogJonathan McCrohan1-1/+1
2012-02-11Fix typo in libconfig++dev.examplesJonathan McCrohan1-3/+3
2012-02-11Update changelog.Jonathan McCrohan1-2/+5
2012-02-11Remove forced install of examples in rules.Jonathan McCrohan1-2/+2
2012-02-11Fix Examples.Jonathan McCrohan6-34/+17
2012-02-11Remove makefile.Jonathan McCrohan1-7/+0
2012-02-11Move *.docs, *.install and *.examples to -dev.Jonathan McCrohan7-2/+2
2012-02-11Move to single -dev package.Jonathan McCrohan2-14/+12
2012-02-08Update package changelog.Jonathan McCrohan1-1/+1
2012-02-08Partial manual revert of move to libconfig*8.Jonathan McCrohan4-12/+12
2012-02-08Add my name to debian copyright.Jonathan McCrohan1-2/+3
2012-02-08Atomic commit. Rollback to libconfig8 packaging names.Jonathan McCrohan10-8/+8
2012-02-07Rename libconfig9 to libconfig8 to aid release teamJonathan McCrohan1-14/+14
2012-02-07Fix "closes typo"Jonathan McCrohan1-1/+1
2012-02-07Revert "Add symbols"Jonathan McCrohan3-739/+1
2012-02-07Revert "Fix b0rked symbol file."Jonathan McCrohan1-1/+1
2012-02-07Revert "Second attempt"Jonathan McCrohan2-0/+194
2012-01-29Second attemptJonathan McCrohan2-194/+0
2012-01-29Fix b0rked symbol file.Jonathan McCrohan1-1/+1
2012-01-29-28756/+43594
2011-12-01Imported Upstream version 1.4.8upstream/1.4.8Jonathan McCrohan156-28873/+43602
generated by cgit v1.2.3 (git 2.39.1) at 2026-10-31 03:39:44 +0000
s="cm"> * * * first try to integrate the Evaluator into a display driver (MatrixOrbital here) * small warning in processor.c fixed (thanks to Zachary Giles) * workaround for udelay() on alpha (no msr.h avaliable) (thanks to Zachary Giles) * * Revision 1.13 2003/10/05 17:58:50 reinelt * libtool junk; copyright messages cleaned up * * Revision 1.12 2003/07/18 04:43:14 reinelt * udelay: unnecessary sanity check removed * * Revision 1.11 2003/04/04 06:02:04 reinelt * new parallel port abstraction scheme * * Revision 1.10 2003/02/27 07:43:11 reinelt * * asm/msr.h: included hard-coded definition of rdtscl() if msr.h cannot be found. * * autoconf/automake/autoanything: switched back to 1.4. Hope it works again. * * Revision 1.9 2002/08/21 06:09:53 reinelt * some T6963 fixes, ndelay wrap * * Revision 1.8 2002/08/17 14:14:21 reinelt * * USBLCD fixes * * Revision 1.7 2002/04/29 11:00:28 reinelt * * added Toshiba T6963 driver * added ndelay() with nanosecond resolution * * Revision 1.6 2001/08/08 05:40:24 reinelt * * renamed CLK_TCK to CLOCKS_PER_SEC * * Revision 1.5 2001/03/12 13:44:58 reinelt * * new udelay() using Time Stamp Counters * * Revision 1.4 2001/03/12 12:39:36 reinelt * * reworked autoconf a lot: drivers may be excluded, #define's went to config.h * * Revision 1.3 2001/03/01 22:33:50 reinelt * * renamed Raster_flush() to PPM_flush() * * Revision 1.2 2000/07/31 10:43:44 reinelt * * some changes to support kernel-2.4 (different layout of various files in /proc) * * Revision 1.1 2000/04/15 16:56:52 reinelt * * moved delay loops to udelay.c * renamed -d (debugging) switch to -v (verbose) * new switch -d to calibrate delay loop * 'Delay' entry for HD44780 back again * delay loops will not calibrate automatically, because this will fail with hich CPU load * */ /* * * exported fuctions: * * void udelay (unsigned long usec) * delays program execution for usec microseconds * uses global variable 'loops_per_usec', which has to be set before. * This function does busy-waiting! so use only for delays smaller * than 10 msec * * void udelay_calibrate (void) (if USE_OLD_UDELAY is defined) * does a binary approximation for 'loops_per_usec' * should be called several times on an otherwise idle machine * the maximum value should be used * * void udelay_init (void) * selects delay method (gettimeofday() ord rdtsc() according * to processor features * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #ifdef USE_OLD_UDELAY #include <time.h> #else #include <math.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <string.h> #include <sys/time.h> #ifdef HAVE_ASM_MSR_H #include <asm/msr.h> #endif #endif #include "debug.h" #include "udelay.h" #ifdef USE_OLD_UDELAY unsigned long loops_per_usec; void ndelay (unsigned long nsec) { unsigned long loop=(nsec*loops_per_usec+999)/1000; __asm__ (".align 16\n" "1:\tdecl %0\n" "\tjne 1b" : /* no result */ :"a" (loop)); } /* adopted from /usr/src/linux/init/main.c */ void udelay_calibrate (void) { clock_t tick; unsigned long bit; loops_per_usec=1; while (loops_per_usec<<=1) { tick=clock(); while (clock()==tick); tick=clock(); ndelay(1000000000/CLOCKS_PER_SEC); if (clock()>tick) break; } loops_per_usec>>=1; bit=loops_per_usec; while (bit>>=1) { loops_per_usec|=bit; tick=clock(); while (clock()==tick); tick=clock(); ndelay(1000000000/CLOCKS_PER_SEC); if (clock()>tick) loops_per_usec&=~bit; } } #else static unsigned int ticks_per_usec=0; static void getCPUinfo (int *hasTSC, double *MHz) { int fd; char buffer[4096], *p; *hasTSC=0; *MHz=-1; fd=open("/proc/cpuinfo", O_RDONLY); if (fd==-1) { error ("open(/proc/cpuinfo) failed: %s", strerror(errno)); return; } if (read (fd, &buffer, sizeof(buffer)-1)==-1) { error ("read(/proc/cpuinfo) failed: %s", strerror(errno)); close (fd); return; } close (fd); p=strstr(buffer, "flags"); if (p==NULL) { info ("/proc/cpuinfo has no 'flags' line"); } else { p=strstr(p, "tsc"); if (p==NULL) { info ("CPU does not support Time Stamp Counter"); } else { info ("CPU supports Time Stamp Counter"); *hasTSC=1; } } p=strstr(buffer, "cpu MHz"); if (p==NULL) { info ("/proc/cpuinfo has no 'cpu MHz' line"); } else { if (sscanf(p+7, " : %lf", MHz)!=1) { error ("parse(/proc/cpuinfo) failed: unknown 'cpu MHz' format"); *MHz=-1; } else { info ("CPU runs at %f MHz", *MHz); } } } void udelay_init (void) { #ifdef HAVE_ASM_MSR_H int tsc; double mhz; getCPUinfo (&tsc, &mhz); if (tsc && mhz>0.0) { ticks_per_usec=ceil(mhz); info ("using TSC delay loop, %u ticks per microsecond", ticks_per_usec); } else #else error ("The file 'include/asm/msr.h' was missing at compile time."); error ("Even if your CPU supports TSC, it will not be used!"); error ("You *really* should install msr.h and recompile LCD4linux!"); #endif { ticks_per_usec=0; info ("using gettimeofday() delay loop"); } } void ndelay (unsigned long nsec) { #ifdef HAVE_ASM_MSR_H if (ticks_per_usec) { unsigned int t1, t2; nsec=(nsec*ticks_per_usec+999)/1000; rdtscl(t1); do { rep_nop(); rdtscl(t2); } while ((t2-t1)<nsec); } else #endif { struct timeval now, end; gettimeofday (&end, NULL); end.tv_usec+=(nsec+999)/1000; while (end.tv_usec>1000000) { end.tv_usec-=1000000; end.tv_sec++; } do { rep_nop(); gettimeofday(&now, NULL); } while (now.tv_sec==end.tv_sec?now.tv_usec<end.tv_usec:now.tv_sec<end.tv_sec); } } #endif
generated by cgit v1.2.3 (git 2.39.1) at 2026-10-31 03:39:43 +0000