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#ifndef SUN_NVRAM_H
#define SUN_NVRAM_H
/* Sun IDPROM structure at the end of NVRAM */
/* from http://www.squirrel.com/squirrel/sun-nvram-hostid.faq.html */
struct Sun_nvram {
uint8_t type; /* always 01 */
uint8_t machine_id; /* first byte of host id (machine type) */
uint8_t macaddr[6]; /* 6 byte ethernet address (first 3 bytes 08, 00, 20) */
uint8_t date[4]; /* date of manufacture */
uint8_t hostid[3]; /* remaining 3 bytes of host id (serial number) */
uint8_t checksum; /* bitwise xor of previous bytes */
};
static inline void
Sun_init_header(struct Sun_nvram *header, const uint8_t *macaddr, int machine_id)
{
uint8_t tmp, *tmpptr;
unsigned int i;
header->type = 1;
header->machine_id = machine_id & 0xff;
memcpy(&header->macaddr, macaddr, 6);
memcpy(&header->hostid , &macaddr[3], 3);
/* Calculate checksum */
tmp = 0;
tmpptr = (uint8_t *)header;
for (i = 0; i < 15; i++)
tmp ^= tmpptr[i];
header->checksum = tmp;
}
#endif /* SUN_NVRAM_H */
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