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<?xml version='1.0' encoding='iso-8859-1'?>
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<title>
mdioblock.c
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/*====================================================================*
*
* Copyright (c) 2013 Qualcomm Atheros, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted (subject to the limitations
* in the disclaimer below) provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of Qualcomm Atheros nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
* COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*--------------------------------------------------------------------*/
/*====================================================================*"
*
* mdioblock.c
*
* Contributor(s):
* Charles Maier <cmaier@qca.qualcomm.com>
*
*--------------------------------------------------------------------*/
/*====================================================================*
* system header files;
*--------------------------------------------------------------------*/
#include <stdio.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
/*====================================================================*
* custom header files;
*--------------------------------------------------------------------*/
#include "../tools/getoptv.h"
#include "../tools/endian.h"
#include "../tools/number.h"
#include "../tools/chars.h"
#include "../tools/error.h"
#include "../tools/flags.h"
#include "../mdio/mdio.h"
/*====================================================================*
* custom source files;
*--------------------------------------------------------------------*/
#ifndef MAKEFILE
#include "../tools/getoptv.c"
#include "../tools/putoptv.c"
#include "../tools/version.c"
#include "../tools/error.c"
#include "../tools/todigit.c"
#endif
/*====================================================================*
* program variables;
*--------------------------------------------------------------------*/
static signed c;
static unsigned row = 1;
static unsigned col = 1;
static uint16_t count = 0;
static uint16_t instr = 0;
static uint16_t addr;
static uint16_t data;
static uint16_t mask;
static uint16_t phy;
static uint16_t reg;
/*====================================================================*
*
* signed mygetc ();
*
* fetch next character from stdin and update the file cursor;
*
*--------------------------------------------------------------------*/
static signed mygetc ()
{
signed c = getc (stdin);
if (c == '\n')
{
row++;
col = 0;
}
else if (~c)
{
col++;
}
return (c);
}
/*====================================================================*
*
* uint16_t integer (unsigned radix);
*
*
*--------------------------------------------------------------------*/
static uint16_t integer (unsigned radix)
{
extern signed c;
uint16_t value = 0;
unsigned digit = 0;
while ((digit = todigit (c)) < radix)
{
value *= radix;
value += digit;
c = mygetc ();
}
while (isspace (c))
{
c = mygetc ();
}
return (value);
}
/*====================================================================*
*
* void assemble (flag_t flags);
*
* read stdin and write stdout; convert hexadecimal input to binary
* MDIO register instructions;
*
* the input file consists of zero or more hexadecimal instructions
* consisting of a phy address, register address, register data and
* register mask; instructions are terminated with semicolon; fields
* are separated by white space; scriptstyle comments are permitted
* between instructions but not between instruction fields;
*
* the output file will consist of one 16-bit program header plus
* one 16-bit MDIO instructions for each input instruction; the
* output is padded to the nearest multiple of 32-bits;
*
*--------------------------------------------------------------------*/
static void assemble (flag_t flags)
{
extern signed c;
c = mygetc ();
while (c != EOF)
{
if (isspace (c))
{
do
{
c = mygetc ();
}
while (isspace (c));
continue;
}
if ((c == '#') || (c == ';'))
{
do
{
c = mygetc ();
}
while (nobreak (c));
continue;
}
phy = integer (16);
reg = integer (16);
data = integer (16);
mask = integer (16);
instr = MDIO16_INSTR (1, 1, phy, reg, 2);
write (STDOUT_FILENO, &instr, sizeof (instr));
data = HTOLE16 (data & 0xFFFF);
write (STDOUT_FILENO, &data, sizeof (data));
mask = HTOLE16 (mask & 0xFFFF);
write (STDOUT_FILENO, &mask, sizeof (mask));
count++;
if (_anyset (flags, MDIO_VERBOSE))
{
fprintf (stderr, "INSTR=0x%04X DATA=0x%04X MASK=0x%04X\n", instr, data, mask);
}
if ((c == ';') || (c == EOF))
{
c = mygetc ();
continue;
}
if (_allclr (flags, MDIO_SILENCE))
{
error (1, 0, "Illegal character or missing terminator: line %d col %d", row, col);
}
}
return;
}
/*====================================================================*
*
* int main (int argc, const char * argv []);
*
*
*
*--------------------------------------------------------------------*/
int main (int argc, const char * argv [])
{
static const char * optv [] =
{
"qv",
"file [ file ] [ ...] > file",
"Atheros Clause 22 MDIO Instruction Block Assembler",
"q\tquiet mode",
"v\tverbose mode",
(const char *) (0)
};
flag_t flags = (flag_t)(0);
optind = 1;
while ((c = getoptv (argc, argv, optv)) != -1)
{
switch (c)
{
case 'q':
_setbits (flags, MDIO_SILENCE);
break;
case 'v':
_setbits (flags, MDIO_VERBOSE);
break;
default:
break;
}
}
argc -= optind;
argv += optind;
if (isatty (STDOUT_FILENO))
{
error (1, ECANCELED, "stdout must be a file or pipe");
}
#if defined (WIN32)
setmode (STDOUT_FILENO, O_BINARY);
#endif
instr = MDIO16_START (1, 0, count);
write (STDOUT_FILENO, &instr, sizeof (instr));
if (!argc)
{
assemble (flags);
}
while ((argc) && (* argv))
{
if (!freopen (* argv, "rb", stdin))
{
error (1, errno, "%s", * argv);
}
assemble (flags);
argc--;
argv++;
}
instr = MDIO16_START (1, 0, count);
addr = count * sizeof (instr) + sizeof (instr);
if ((addr % sizeof (uint32_t)))
{
uint32_t pad = 0;
write (STDOUT_FILENO, &pad, sizeof (pad) - addr % sizeof (pad));
}
if (!lseek (STDOUT_FILENO, 0, SEEK_SET))
{
write (STDOUT_FILENO, &instr, sizeof (instr));
}
if (_anyset (flags, MDIO_VERBOSE))
{
fprintf (stderr, "%d instructions\n", count);
}
return (0);
}
</pre>
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