59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (C) 2013 CERN (www.cern.ch)
|
|
* Author: Alessandro Rubini <rubini@gnudd.com>
|
|
*
|
|
* This work is part of the White Rabbit project, a research effort led
|
|
* by CERN, the European Institute for Nuclear Research.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/device.h>
|
|
#include <linux/fmc.h>
|
|
#include <linux/fmc-sdb.h>
|
|
|
|
static int fmc_must_dump_eeprom;
|
|
module_param_named(dump_eeprom, fmc_must_dump_eeprom, int, 0644);
|
|
|
|
#define LINELEN 16
|
|
|
|
/* Dumping 8k takes oh so much: avoid duplicate lines */
|
|
static const uint8_t *dump_line(int addr, const uint8_t *line,
|
|
const uint8_t *prev)
|
|
{
|
|
int i;
|
|
|
|
if (!prev || memcmp(line, prev, LINELEN)) {
|
|
pr_info("%04x: ", addr);
|
|
for (i = 0; i < LINELEN; ) {
|
|
printk(KERN_CONT "%02x", line[i]);
|
|
i++;
|
|
printk(i & 3 ? " " : i & (LINELEN - 1) ? " " : "\n");
|
|
}
|
|
return line;
|
|
}
|
|
/* repeated line */
|
|
if (line == prev + LINELEN)
|
|
pr_info("[...]\n");
|
|
return prev;
|
|
}
|
|
|
|
void fmc_dump_eeprom(const struct fmc_device *fmc)
|
|
{
|
|
const uint8_t *line, *prev;
|
|
int i;
|
|
|
|
if (!fmc_must_dump_eeprom)
|
|
return;
|
|
|
|
pr_info("FMC: %s (%s), slot %i, device %s\n", dev_name(fmc->hwdev),
|
|
fmc->carrier_name, fmc->slot_id, dev_name(&fmc->dev));
|
|
pr_info("FMC: dumping eeprom 0x%x (%i) bytes\n", fmc->eeprom_len,
|
|
fmc->eeprom_len);
|
|
|
|
line = fmc->eeprom;
|
|
prev = NULL;
|
|
for (i = 0; i < fmc->eeprom_len; i += LINELEN, line += LINELEN)
|
|
prev = dump_line(i, line, prev);
|
|
}
|