mirror of
https://git.savannah.gnu.org/git/grub.git
synced 2026-10-24 08:09:22 +00:00
add missing files.
This commit is contained in:
okuji committed
1 parent
9fe0449a36
commit
ef1679fa92
17 files changed
+8030
No files matched your search
+254
@@ -0,0 +1,254 @@
|
||||
/**************************************************************************
|
||||
Etherboot - BOOTP/TFTP Bootstrap Program
|
||||
|
||||
TIARA (Fujitsu Etherstar) NIC driver for Etherboot
|
||||
Copyright (c) Ken Yap 1998
|
||||
|
||||
Information gleaned from:
|
||||
|
||||
TIARA.ASM Packet driver by Brian Fisher, Queens U, Kingston, Ontario
|
||||
Fujitsu MB86960 spec sheet (different chip but same family)
|
||||
***************************************************************************/
|
||||
|
||||
/* to get some global routines like printf */
|
||||
#include "etherboot.h"
|
||||
/* to get the interface to the body of the program */
|
||||
#include "nic.h"
|
||||
|
||||
/*
|
||||
EtherStar I/O Register offsets
|
||||
*/
|
||||
|
||||
/* Offsets of registers */
|
||||
#define DLCR_XMIT_STAT 0x00
|
||||
#define DLCR_XMIT_MASK 0x01
|
||||
#define DLCR_RECV_STAT 0x02
|
||||
#define DLCR_RECV_MASK 0x03
|
||||
#define DLCR_XMIT_MODE 0x04
|
||||
#define DLCR_RECV_MODE 0x05
|
||||
#define DLCR_ENABLE 0x06
|
||||
#define DLCR_TDR_LOW 0x07
|
||||
#define DLCR_NODE_ID 0x08
|
||||
#define DLCR_TDR_HIGH 0x0F
|
||||
#define BMPR_MEM_PORT 0x10
|
||||
#define BMPR_PKT_LEN 0x12
|
||||
#define BMPR_DMA_ENABLE 0x14
|
||||
#define PROM_ID 0x18
|
||||
|
||||
#define TMST 0x80
|
||||
#define TMT_OK 0x80
|
||||
#define TMT_16COLL 0x02
|
||||
#define BUF_EMPTY 0x40
|
||||
|
||||
#define CARD_DISABLE 0x80 /* written to DLCR_ENABLE to disable card */
|
||||
#define CARD_ENABLE 0 /* written to DLCR_ENABLE to enable card */
|
||||
|
||||
#define CLEAR_STATUS 0x0F /* used to clear status info */
|
||||
/*
|
||||
00001111B
|
||||
!!!!!!!!--------
|
||||
!!!!!!!+--------CLEAR BUS WRITE ERROR
|
||||
!!!!!!+---------CLEAR 16 COLLISION
|
||||
!!!!!+----------CLEAR COLLISION
|
||||
!!!!+-----------CLEAR UNDERFLOW
|
||||
!!!+------------NC
|
||||
!!+-------------NC
|
||||
!+--------------NC
|
||||
+---------------NC
|
||||
*/
|
||||
|
||||
#define NO_TX_IRQS 0 /* written to clear transmit IRQs */
|
||||
|
||||
#define CLR_RCV_STATUS 0xCF /* clears receive status */
|
||||
|
||||
#define EN_RCV_IRQS 0x80 /* enable receive interrupts */
|
||||
/*
|
||||
10000000B
|
||||
!!!!!!!!--------
|
||||
!!!!!!!+--------ENABLE OVERFLOW
|
||||
!!!!!!+---------ENABLE CRC
|
||||
!!!!!+----------ENABLE ALIGN
|
||||
!!!!+-----------ENABLE SHORT PKT
|
||||
!!!+------------DISABLE REMOTE RESET
|
||||
!!+-------------RESERVED
|
||||
!+--------------RESERVED
|
||||
+---------------ENABLE PKT READY
|
||||
*/
|
||||
|
||||
#define XMIT_MODE 0x02
|
||||
/*
|
||||
00000010B
|
||||
!!!!!!!!---------ENABLE CARRIER DETECT
|
||||
!!!!!!!+---------DISABLE LOOPBACK
|
||||
*/
|
||||
|
||||
#define RECV_MODE 0x02
|
||||
/*
|
||||
00000010B
|
||||
!!!!!!!!---------ACCEPT ALL PACKETS
|
||||
!!!!!!!+---------ACCEPT PHYSICAL, MULTICAST, AND
|
||||
!!!!!!+----------BROADCAST PACKETS
|
||||
!!!!!+-----------DISABLE REMOTE RESET
|
||||
!!!!+------------DISABLE SHORT PACKETS
|
||||
!!!+-------------USE 6 BYTE ADDRESS
|
||||
!!+--------------NC
|
||||
!+---------------NC
|
||||
+----------------DISABLE CRC TEST MODE
|
||||
*/
|
||||
|
||||
/* NIC specific static variables go here */
|
||||
|
||||
static unsigned short ioaddr;
|
||||
|
||||
/**************************************************************************
|
||||
RESET - Reset adapter
|
||||
***************************************************************************/
|
||||
static void tiara_reset(struct nic *nic)
|
||||
{
|
||||
int i;
|
||||
|
||||
outb(CARD_DISABLE, ioaddr + DLCR_ENABLE);
|
||||
outb(CLEAR_STATUS, ioaddr + DLCR_XMIT_STAT);
|
||||
outb(NO_TX_IRQS, ioaddr + DLCR_XMIT_MASK);
|
||||
outb(CLR_RCV_STATUS, ioaddr + DLCR_RECV_STAT);
|
||||
outb(XMIT_MODE, ioaddr + DLCR_XMIT_MODE);
|
||||
outb(RECV_MODE, ioaddr + DLCR_RECV_MODE);
|
||||
/* Vacuum recv buffer */
|
||||
while ((inb(ioaddr + DLCR_RECV_MODE) & BUF_EMPTY) == 0)
|
||||
inb(ioaddr + BMPR_MEM_PORT);
|
||||
/* Set node address */
|
||||
for (i = 0; i < ETHER_ADDR_SIZE; ++i)
|
||||
outb(nic->node_addr[i], ioaddr + DLCR_NODE_ID + i);
|
||||
outb(CLR_RCV_STATUS, ioaddr + DLCR_RECV_STAT);
|
||||
outb(CARD_ENABLE, ioaddr + DLCR_ENABLE);
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
POLL - Wait for a frame
|
||||
***************************************************************************/
|
||||
static int tiara_poll(struct nic *nic)
|
||||
{
|
||||
unsigned int len;
|
||||
|
||||
if (inb(ioaddr + DLCR_RECV_MODE) & BUF_EMPTY)
|
||||
return (0);
|
||||
/* Ack packet */
|
||||
outw(CLR_RCV_STATUS, ioaddr + DLCR_RECV_STAT);
|
||||
len = inw(ioaddr + BMPR_MEM_PORT); /* throw away status */
|
||||
len = inw(ioaddr + BMPR_MEM_PORT);
|
||||
/* Drop overlength packets */
|
||||
if (len > ETH_MAX_PACKET)
|
||||
return (0); /* should we drain the buffer? */
|
||||
insw(ioaddr + BMPR_MEM_PORT, nic->packet, len / 2);
|
||||
/* If it's our own, drop it */
|
||||
if (memcmp(nic->packet + ETHER_ADDR_SIZE, nic->node_addr, ETHER_ADDR_SIZE) == 0)
|
||||
return (0);
|
||||
nic->packetlen = len;
|
||||
return (1);
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
TRANSMIT - Transmit a frame
|
||||
***************************************************************************/
|
||||
static void tiara_transmit(
|
||||
struct nic *nic,
|
||||
char *d, /* Destination */
|
||||
unsigned int t, /* Type */
|
||||
unsigned int s, /* size */
|
||||
char *p) /* Packet */
|
||||
{
|
||||
unsigned int len;
|
||||
unsigned long time;
|
||||
|
||||
len = s + ETHER_HDR_SIZE;
|
||||
if (len < ETH_MIN_PACKET)
|
||||
len = ETH_MIN_PACKET;
|
||||
t = htons(t);
|
||||
outsw(ioaddr + BMPR_MEM_PORT, d, ETHER_ADDR_SIZE / 2);
|
||||
outsw(ioaddr + BMPR_MEM_PORT, nic->node_addr, ETHER_ADDR_SIZE / 2);
|
||||
outw(t, ioaddr + BMPR_MEM_PORT);
|
||||
outsw(ioaddr + BMPR_MEM_PORT, p, s / 2);
|
||||
if (s & 1) /* last byte */
|
||||
outb(p[s-1], ioaddr + BMPR_MEM_PORT);
|
||||
while (s++ < ETH_MIN_PACKET - ETHER_HDR_SIZE) /* pad */
|
||||
outb(0, ioaddr + BMPR_MEM_PORT);
|
||||
outw(len | (TMST << 8), ioaddr + BMPR_PKT_LEN);
|
||||
/* wait for transmit complete */
|
||||
time = currticks() + TICKS_PER_SEC; /* wait one second */
|
||||
while (currticks() < time && (inb(ioaddr) & (TMT_OK|TMT_16COLL)) == 0)
|
||||
;
|
||||
if ((inb(ioaddr) & (TMT_OK|TMT_16COLL)) == 0)
|
||||
printf("Tiara timed out on transmit\n");
|
||||
/* Do we need to ack the transmit? */
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
DISABLE - Turn off ethernet interface
|
||||
***************************************************************************/
|
||||
static void tiara_disable(struct nic *nic)
|
||||
{
|
||||
/* Apparently only a power down can do this properly */
|
||||
outb(CARD_DISABLE, ioaddr + DLCR_ENABLE);
|
||||
}
|
||||
|
||||
static int tiara_probe1(struct nic *nic)
|
||||
{
|
||||
/* Hope all the Tiara cards have this vendor prefix */
|
||||
static char vendor_prefix[] = { 0x08, 0x00, 0x1A };
|
||||
static char all_ones[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
|
||||
int i, b;
|
||||
|
||||
for (i = 0; i < ETHER_ADDR_SIZE; ++i)
|
||||
nic->node_addr[i] = inb(ioaddr + PROM_ID + i);
|
||||
if (memcmp(nic->node_addr, vendor_prefix, sizeof(vendor_prefix)) != 0)
|
||||
return (0);
|
||||
if (memcmp(nic->node_addr, all_ones, sizeof(all_ones)) == 0)
|
||||
return (0);
|
||||
printf("\nTiara ioaddr 0x%x, addr ", ioaddr);
|
||||
for (i = 0; i < ETHER_ADDR_SIZE; ++i)
|
||||
{
|
||||
printf("%b", nic->node_addr[i]);
|
||||
if (i < ETHER_ADDR_SIZE - 1)
|
||||
printf(":");
|
||||
}
|
||||
putchar('\n');
|
||||
return (1);
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
PROBE - Look for an adapter, this routine's visible to the outside
|
||||
***************************************************************************/
|
||||
struct nic *tiara_probe(struct nic *nic, unsigned short *probe_addrs)
|
||||
{
|
||||
/* missing entries are addresses usually already used */
|
||||
static unsigned short io_addrs[] = {
|
||||
0x100, 0x120, 0x140, 0x160,
|
||||
0x180, 0x1A0, 0x1C0, 0x1E0,
|
||||
0x200, 0x220, 0x240, /*Par*/
|
||||
0x280, 0x2A0, 0x2C0, /*Ser*/
|
||||
0x300, 0x320, 0x340, /*Par*/
|
||||
0x380, /*Vid,Par*/ 0x3C0, /*Ser*/
|
||||
0x0
|
||||
};
|
||||
unsigned short *p;
|
||||
|
||||
/* if probe_addrs is 0, then routine can use a hardwired default */
|
||||
if (probe_addrs == 0)
|
||||
probe_addrs = io_addrs;
|
||||
for (p = probe_addrs; (ioaddr = *p) != 0; ++p)
|
||||
if (tiara_probe1(nic))
|
||||
break;
|
||||
/* if board found */
|
||||
if (ioaddr != 0)
|
||||
{
|
||||
tiara_reset(nic);
|
||||
/* point to NIC specific routines */
|
||||
nic->reset = tiara_reset;
|
||||
nic->poll = tiara_poll;
|
||||
nic->transmit = tiara_transmit;
|
||||
nic->disable = tiara_disable;
|
||||
return nic;
|
||||
}
|
||||
else
|
||||
return (0);
|
||||
}
|
||||
Reference in new issue
Block a user