int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info) { int i; uint16_t checksum; s->poll_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, pcnet_poll_timer, s); qemu_macaddr_default_if_unset(&s->conf.macaddr); s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)), dev->id, s); qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); /* Initialize the PROM */ /* Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf page 95 */ memcpy(s->prom, s->conf.macaddr.a, 6); /* Reserved Location: must be 00h */ s->prom[6] = s->prom[7] = 0x00; /* Reserved Location: must be 00h */ s->prom[8] = 0x00; /* Hardware ID: must be 11h if compatibility to AMD drivers is desired */ s->prom[9] = 0x11; /* User programmable space, init with 0 */ s->prom[10] = s->prom[11] = 0x00; /* LSByte of two-byte checksum, which is the sum of bytes 00h-0Bh and bytes 0Eh and 0Fh, must therefore be initialized with 0! */ s->prom[12] = s->prom[13] = 0x00; /* Must be ASCII W (57h) if compatibility to AMD driver software is desired */ s->prom[14] = s->prom[15] = 0x57; for (i = 0, checksum = 0; i < 16; i++) { checksum += s->prom[i]; } *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum); s->lnkst = 0x40; /* initial link state: up */ return 0; }