se-Trosa « dvb-t « scan « util - linux-dvb-apps.git - linux-dvb-apps Debian packaging

summary refs log tree commit diff stats

path: root/util/scan/dvb-t/se-Trosa

blob: 6b11b6ad5232b52337c35ea8517d7c2995756daa (plain)

# Sweden - Trosa
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 666000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
T 522000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE

nt; padding-left: 5px; padding-right: 5px; } td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; } span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; } .highlight .hll { background-color: #ffffcc } .highlight .c { color: #888888 } /* Comment */ .highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */

/* $Id$
 * $URL$
 *
 * short delays
 *
 * Copyright (C) 1999, 2000 Michael Reinelt <reinelt@eunet.at>
 * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * LCD4Linux is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/* 
 *
 * exported fuctions:
 *
 * void udelay_init (void)
 *   selects delay method (gettimeofday() ord rdtsc() according
 *   to processor features
 *
 * unsigned long timing (const char *driver, const char *section, const char *name, const int defval, const char *unit);
 *   returns a timing value from config or the default value
 *
 * 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
 *
 */

#include "config.h"
#include <stdlib.h>
#include <stdio.h>


#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


#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "udelay.h"


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("udelay: open(/proc/cpuinfo) failed: %s", strerror(errno));
	return;
    }
    if (read(fd, &buffer, sizeof(buffer) - 1) == -1) {
	error("udelay: read(/proc/cpuinfo) failed: %s", strerror(errno));
	close(fd);
	return;
    }
    close(fd);

    p = strstr(buffer, "flags");
    if (p == NULL) {
	info("udelay: /proc/cpuinfo has no 'flags' line");
    } else {
	p = strstr(p, "tsc");
	if (p == NULL) {
	    info("udelay: CPU does not support Time Stamp Counter");
	} else {
	    info("udelay: CPU supports Time Stamp Counter");
	    *hasTSC = 1;
	}
    }

    p = strstr(buffer, "cpu MHz");
    if (p == NULL) {
	info("udelay: /proc/cpuinfo has no 'cpu MHz' line");
    } else {
	if (sscanf(p + 7, " : %lf", MHz) != 1) {
	    error("udelay: parse(/proc/cpuinfo) failed: unknown 'cpu MHz' format");
	    *MHz = -1;
	} else {
	    info("udelay: 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("udelay: using TSC delay loop, %u ticks per microsecond", ticks_per_usec);
    } else
#else
    error("udelay: The file 'include/asm/msr.h' was missing at compile time.");
    error("udelay: Even if your CPU supports TSC, it will not be used!");
    error("udelay: You *really* should install msr.h and recompile LCD4linux!");
#endif
    {
	ticks_per_usec = 0;
	info("udelay: using gettimeofday() delay loop");
    }
}


unsigned long timing(const char *driver, const char *section, const char *name, const int defval, const char *unit)
{
    char sec[256];
    int fuzz, val;

    qprintf(sec, sizeof(sec), "%s.Timing", section);

    /* fuzz all timings by given factor */
    cfg_number(sec, "fuzz", 100, 1, -1, &fuzz);

    cfg_number(sec, name, defval, 0, -1, &val);
    val = val * fuzz / 100;

    if (val != defval) {
	if (fuzz != 100) {
	    info("%s: timing: %6s = %5d %s (default %d %s, fuzz %d)", driver, name, val, unit, defval, unit, fuzz);
	} else {
	    info("%s: timing: %6s = %5d %s (default %d %s)", driver, name, val, unit, defval, unit);
	}
    } else {
	info("%s: timing: %6s = %5d %s (default)", driver, name, defval, unit);
    }
    return val;
}


void ndelay(const unsigned long nsec)
{

#ifdef HAVE_ASM_MSR_H

    if (ticks_per_usec) {

	unsigned int t1, t2;
	unsigned long tsc;

	tsc = (nsec * ticks_per_usec + 999) / 1000;

	rdtscl(t1);
	do {
	    rep_nop();
	    rdtscl(t2);
	} while ((t2 - t1) < tsc);

    } 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);
    }
}