Release 4.14 arch/mips/bcm63xx/nvram.c
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
* Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
* Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
*/
#define pr_fmt(fmt) "bcm63xx_nvram: " fmt
#include <linux/bcm963xx_nvram.h>
#include <linux/init.h>
#include <linux/crc32.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/if_ether.h>
#include <bcm63xx_nvram.h>
#define BCM63XX_DEFAULT_PSI_SIZE 64
static struct bcm963xx_nvram nvram;
static int mac_addr_used;
void __init bcm63xx_nvram_init(void *addr)
{
u32 crc, expected_crc;
u8 hcs_mac_addr[ETH_ALEN] = { 0x00, 0x10, 0x18, 0xff, 0xff, 0xff };
/* extract nvram data */
memcpy(&nvram, addr, BCM963XX_NVRAM_V5_SIZE);
/* check checksum before using data */
if (bcm963xx_nvram_checksum(&nvram, &expected_crc, &crc))
pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
expected_crc, crc);
/* Cable modems have a different NVRAM which is embedded in the eCos
* firmware and not easily extractible, give at least a MAC address
* pool.
*/
if (BCMCPU_IS_3368()) {
memcpy(nvram.mac_addr_base, hcs_mac_addr, ETH_ALEN);
nvram.mac_addr_count = 2;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Florian Fainelli | 45 | 47.37% | 1 | 20.00% |
| Jonas Gorski | 44 | 46.32% | 3 | 60.00% |
| Simon Arlott | 6 | 6.32% | 1 | 20.00% |
| Total | 95 | 100.00% | 5 | 100.00% |
u8 *bcm63xx_nvram_get_name(void)
{
return nvram.name;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jonas Gorski | 13 | 100.00% | 1 | 100.00% |
| Total | 13 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(bcm63xx_nvram_get_name);
int bcm63xx_nvram_get_mac_address(u8 *mac)
{
u8 *oui;
int count;
if (mac_addr_used >= nvram.mac_addr_count) {
pr_err("not enough mac addresses\n");
return -ENODEV;
}
memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
oui = mac + ETH_ALEN/2 - 1;
count = mac_addr_used;
while (count--) {
u8 *p = mac + ETH_ALEN - 1;
do {
(*p)++;
if (*p != 0)
break;
p--;
} while (p != oui);
if (p == oui) {
pr_err("unable to fetch mac address\n");
return -ENODEV;
}
}
mac_addr_used++;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jonas Gorski | 127 | 100.00% | 1 | 100.00% |
| Total | 127 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address);
int bcm63xx_nvram_get_psi_size(void)
{
if (nvram.psi_size > 0)
return nvram.psi_size;
return BCM63XX_DEFAULT_PSI_SIZE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(bcm63xx_nvram_get_psi_size);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jonas Gorski | 229 | 72.70% | 3 | 50.00% |
| Florian Fainelli | 45 | 14.29% | 1 | 16.67% |
| Ralf Bächle | 32 | 10.16% | 1 | 16.67% |
| Simon Arlott | 9 | 2.86% | 1 | 16.67% |
| Total | 315 | 100.00% | 6 | 100.00% |
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