static void ni52_timeout(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
#ifndef NO_NOPCOMMANDS
if (readb(&p->scb->cus) & CU_ACTIVE) { /* */
netif_wake_queue(dev);
#ifdef DEBUG
printk(KERN_ERR "%s: strange ... timeout with CU active?!?\n",
dev->name);
printk(KERN_ERR "%s: X0: %04x N0: %04x N1: %04x %d\n",
dev->name, (int)p->xmit_cmds[0]->cmd_status,
readw(&p->nop_cmds[0]->cmd_status),
readw(&p->nop_cmds[1]->cmd_status),
p->nop_point);
#endif
writeb(CUC_ABORT, &p->scb->cmd_cuc);
ni_attn586();
wait_for_scb_cmd(dev);
writew(make16(p->nop_cmds[p->nop_point]), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc);
ni_attn586();
wait_for_scb_cmd(dev);
dev->trans_start = jiffies; /* */
return 0;
}
#endif
{
#ifdef DEBUG
printk(KERN_ERR "%s: xmitter timed out, try to restart! stat: %02x\n",
dev->name, readb(&p->scb->cus));
printk(KERN_ERR "%s: command-stats: %04x %04x\n",
dev->name,
readw(&p->xmit_cmds[0]->cmd_status),
readw(&p->xmit_cmds[1]->cmd_status));
printk(KERN_ERR "%s: check, whether you set the right interrupt number!\n",
dev->name);
#endif
ni52_close(dev);
ni52_open(dev);
}
dev->trans_start = jiffies; /* */
}
static void startrecv586(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
wait_for_scb_cmd(dev);
wait_for_scb_cmd_ruc(dev);
writew(make16(p->rfd_first), &p->scb->rfa_offset);
writeb(RUC_START, &p->scb->cmd_ruc);
ni_attn586(); /* */
wait_for_scb_cmd_ruc(dev);
/* */
}
static void startrecv586(struct net_device *dev)
{
struct priv *p = (struct priv *) dev->priv;
wait_for_scb_cmd(dev);
wait_for_scb_cmd_ruc(dev);
writew(make16(p->rfd_first), &p->scb->rfa_offset);
writeb(RUC_START, &p->scb->cmd_ruc);
ni_attn586(); /* start cmd. */
wait_for_scb_cmd_ruc(dev);
/* wait for accept cmd. (no timeout!!) */
}
static void ni52_rnr_int(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
dev->stats.rx_errors++;
wait_for_scb_cmd(dev); /* */
writeb(RUC_ABORT, &p->scb->cmd_ruc); /* */
ni_attn586();
wait_for_scb_cmd_ruc(dev); /* */
alloc_rfa(dev, p->rfd_first);
/* */
startrecv586(dev); /* */
printk(KERN_ERR "%s: Receive-Unit restarted. Status: %04x\n",
dev->name, readb(&p->scb->rus));
}
static void ni52_rnr_int(struct net_device *dev)
{
struct priv *p = netdev_priv(dev);
p->stats.rx_errors++;
wait_for_scb_cmd(dev); /* wait for the last cmd, WAIT_4_FULLSTAT?? */
writeb(RUC_ABORT, &p->scb->cmd_ruc); /* usually the RU is in the 'no resource'-state .. abort it now. */
ni_attn586();
wait_for_scb_cmd_ruc(dev); /* wait for accept cmd. */
alloc_rfa(dev, p->rfd_first);
/* maybe add a check here, before restarting the RU */
startrecv586(dev); /* restart RU */
printk(KERN_ERR "%s: Receive-Unit restarted. Status: %04x\n",
dev->name, readb(&p->scb->rus));
}
static void ni52_rcv_int(struct net_device *dev)
{
int status, cnt = 0;
unsigned short totlen;
struct sk_buff *skb;
struct rbd_struct __iomem *rbd;
struct priv *p = netdev_priv(dev);
if (debuglevel > 0)
printk("R");
for (; (status = readb(&p->rfd_top->stat_high)) & RFD_COMPL;) {
rbd = make32(readw(&p->rfd_top->rbd_offset));
if (status & RFD_OK) { /* */
totlen = readw(&rbd->status);
if (totlen & RBD_LAST) {
/* */
totlen &= RBD_MASK; /* */
writew(0x00, &rbd->status);
skb = netdev_alloc_skb(dev, totlen + 2);
if (skb != NULL) {
skb_reserve(skb, 2);
skb_put(skb, totlen);
memcpy_fromio(skb->data, p->base + readl(&rbd->buffer), totlen);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += totlen;
} else
dev->stats.rx_dropped++;
} else {
int rstat;
/* */
totlen = 0;
while (!((rstat = readw(&rbd->status)) & RBD_LAST)) {
totlen += rstat & RBD_MASK;
if (!rstat) {
printk(KERN_ERR "%s: Whoops .. no end mark in RBD list\n", dev->name);
break;
}
writew(0, &rbd->status);
rbd = make32(readw(&rbd->next));
}
totlen += rstat & RBD_MASK;
writew(0, &rbd->status);
printk(KERN_ERR "%s: received oversized frame! length: %d\n",
dev->name, totlen);
dev->stats.rx_dropped++;
}
} else {/* */
printk(KERN_ERR "%s: oops! rfd-error-status: %04x\n",
dev->name, status);
dev->stats.rx_errors++;
}
writeb(0, &p->rfd_top->stat_high);
writeb(RFD_SUSP, &p->rfd_top->last); /* */
writew(0xffff, &p->rfd_top->rbd_offset);
writeb(0, &p->rfd_last->last); /* */
p->rfd_last = p->rfd_top;
p->rfd_top = make32(readw(&p->rfd_top->next)); /* */
writew(make16(p->rfd_top), &p->scb->rfa_offset);
if (debuglevel > 0)
printk("%d", cnt++);
}
if (automatic_resume) {
wait_for_scb_cmd(dev);
writeb(RUC_RESUME, &p->scb->cmd_ruc);
ni_attn586();
wait_for_scb_cmd_ruc(dev);
}
#ifdef WAIT_4_BUSY
{
int i;
for (i = 0; i < 1024; i++) {
if (p->rfd_top->status)
break;
udelay(16);
if (i == 1023)
printk(KERN_ERR "%s: RU hasn't fetched next RFD (not busy/complete)\n", dev->name);
}
}
#endif
if (debuglevel > 0)
printk("r");
}
static irqreturn_t ni52_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
unsigned int stat;
int cnt = 0;
struct priv *p;
p = netdev_priv(dev);
if (debuglevel > 1)
printk("I");
spin_lock(&p->spinlock);
wait_for_scb_cmd(dev); /* */
while ((stat = readb(&p->scb->cus) & STAT_MASK)) {
writeb(stat, &p->scb->cmd_cuc);
ni_attn586();
if (stat & STAT_FR) /* */
ni52_rcv_int(dev);
if (stat & STAT_RNR) { /* */
printk("(R)");
if (readb(&p->scb->rus) & RU_SUSPEND) {
/* */
wait_for_scb_cmd(dev);
writeb(RUC_RESUME, &p->scb->cmd_ruc);
ni_attn586();
wait_for_scb_cmd_ruc(dev);
} else {
printk(KERN_ERR "%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",
dev->name, stat, readb(&p->scb->rus));
ni52_rnr_int(dev);
}
}
/* */
if (stat & STAT_CX)
ni52_xmt_int(dev);
#ifndef NO_NOPCOMMANDS
if (stat & STAT_CNA) { /* */
if (netif_running(dev))
printk(KERN_ERR "%s: oops! CU has left active state. stat: %04x/%02x.\n",
dev->name, stat, readb(&p->scb->cus));
}
#endif
if (debuglevel > 1)
printk("%d", cnt++);
/* */
wait_for_scb_cmd(dev);
if (readb(&p->scb->cmd_cuc)) { /* */
printk(KERN_ERR "%s: Acknowledge timed out.\n",
dev->name);
ni_disint();
break;
}
}
spin_unlock(&p->spinlock);
if (debuglevel > 1)
printk("i");
return IRQ_HANDLED;
}
static int init586(struct net_device *dev)
{
void __iomem *ptr;
int i, result = 0;
struct priv *p = netdev_priv(dev);
struct configure_cmd_struct __iomem *cfg_cmd;
struct iasetup_cmd_struct __iomem *ias_cmd;
struct tdr_cmd_struct __iomem *tdr_cmd;
struct mcsetup_cmd_struct __iomem *mc_cmd;
struct netdev_hw_addr *ha;
int num_addrs = netdev_mc_count(dev);
ptr = p->scb + 1;
cfg_cmd = ptr; /* */
writew(0, &cfg_cmd->cmd_status);
writew(CMD_CONFIGURE | CMD_LAST, &cfg_cmd->cmd_cmd);
writew(0xFFFF, &cfg_cmd->cmd_link);
/* */
writeb(0x0a, &cfg_cmd->byte_cnt);
/* */
writeb(fifo, &cfg_cmd->fifo);
/* */
writeb(0x40, &cfg_cmd->sav_bf);
/* */
writeb(0x2e, &cfg_cmd->adr_len);
writeb(0x00, &cfg_cmd->priority);
writeb(0x60, &cfg_cmd->ifs);
writeb(0x00, &cfg_cmd->time_low);
writeb(0xf2, &cfg_cmd->time_high);
writeb(0x00, &cfg_cmd->promisc);
if (dev->flags & IFF_ALLMULTI) {
int len = ((char __iomem *)p->iscp - (char __iomem *)ptr - 8) / 6;
if (num_addrs > len) {
printk(KERN_ERR "%s: switching to promisc. mode\n",
dev->name);
writeb(0x01, &cfg_cmd->promisc);
}
}
if (dev->flags & IFF_PROMISC)
writeb(0x01, &cfg_cmd->promisc);
writeb(0x00, &cfg_cmd->carr_coll);
writew(make16(cfg_cmd), &p->scb->cbl_offset);
writeb(0, &p->scb->cmd_ruc);
writeb(CUC_START, &p->scb->cmd_cuc); /* */
ni_attn586();
wait_for_stat_compl(cfg_cmd);
if ((readw(&cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) !=
(STAT_COMPL|STAT_OK)) {
printk(KERN_ERR "%s: configure command failed: %x\n",
dev->name, readw(&cfg_cmd->cmd_status));
return 1;
}
/*
*/
ias_cmd = ptr;
writew(0, &ias_cmd->cmd_status);
writew(CMD_IASETUP | CMD_LAST, &ias_cmd->cmd_cmd);
writew(0xffff, &ias_cmd->cmd_link);
memcpy_toio(&ias_cmd->iaddr, (char *)dev->dev_addr, ETH_ALEN);
writew(make16(ias_cmd), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc); /* */
ni_attn586();
wait_for_stat_compl(ias_cmd);
if ((readw(&ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) !=
(STAT_OK|STAT_COMPL)) {
printk(KERN_ERR "%s (ni52): individual address setup command failed: %04x\n", dev->name, readw(&ias_cmd->cmd_status));
return 1;
}
/*
*/
tdr_cmd = ptr;
writew(0, &tdr_cmd->cmd_status);
writew(CMD_TDR | CMD_LAST, &tdr_cmd->cmd_cmd);
writew(0xffff, &tdr_cmd->cmd_link);
writew(0, &tdr_cmd->status);
writew(make16(tdr_cmd), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc); /* */
ni_attn586();
wait_for_stat_compl(tdr_cmd);
if (!(readw(&tdr_cmd->cmd_status) & STAT_COMPL))
printk(KERN_ERR "%s: Problems while running the TDR.\n",
dev->name);
else {
udelay(16);
result = readw(&tdr_cmd->status);
writeb(readb(&p->scb->cus) & STAT_MASK, &p->scb->cmd_cuc);
ni_attn586(); /* */
if (result & TDR_LNK_OK)
;
else if (result & TDR_XCVR_PRB)
printk(KERN_ERR "%s: TDR: Transceiver problem. Check the cable(s)!\n",
dev->name);
else if (result & TDR_ET_OPN)
printk(KERN_ERR "%s: TDR: No correct termination %d clocks away.\n",
dev->name, result & TDR_TIMEMASK);
else if (result & TDR_ET_SRT) {
/* */
if (result & TDR_TIMEMASK)
printk(KERN_ERR "%s: TDR: Detected a short circuit %d clocks away.\n",
dev->name, result & TDR_TIMEMASK);
} else
printk(KERN_ERR "%s: TDR: Unknown status %04x\n",
dev->name, result);
}
/*
*/
if (num_addrs && !(dev->flags & IFF_PROMISC)) {
mc_cmd = ptr;
writew(0, &mc_cmd->cmd_status);
writew(CMD_MCSETUP | CMD_LAST, &mc_cmd->cmd_cmd);
writew(0xffff, &mc_cmd->cmd_link);
writew(num_addrs * 6, &mc_cmd->mc_cnt);
i = 0;
netdev_for_each_mc_addr(ha, dev)
memcpy_toio(mc_cmd->mc_list[i++], ha->addr, 6);
writew(make16(mc_cmd), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc);
ni_attn586();
wait_for_stat_compl(mc_cmd);
if ((readw(&mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK))
!= (STAT_COMPL|STAT_OK))
printk(KERN_ERR "%s: Can't apply multicast-address-list.\n", dev->name);
}
/*
*/
#if (NUM_XMIT_BUFFS == 1)
for (i = 0; i < 2; i++) {
p->nop_cmds[i] = ptr;
writew(CMD_NOP, &p->nop_cmds[i]->cmd_cmd);
writew(0, &p->nop_cmds[i]->cmd_status);
writew(make16(p->nop_cmds[i]), &p->nop_cmds[i]->cmd_link);
ptr = ptr + sizeof(struct nop_cmd_struct);
}
#else
for (i = 0; i < NUM_XMIT_BUFFS; i++) {
p->nop_cmds[i] = ptr;
writew(CMD_NOP, &p->nop_cmds[i]->cmd_cmd);
writew(0, &p->nop_cmds[i]->cmd_status);
writew(make16(p->nop_cmds[i]), &p->nop_cmds[i]->cmd_link);
ptr = ptr + sizeof(struct nop_cmd_struct);
}
#endif
ptr = alloc_rfa(dev, ptr); /* */
/*
*/
for (i = 0; i < NUM_XMIT_BUFFS; i++) {
/* */
p->xmit_cmds[i] = ptr;
ptr = ptr + sizeof(struct transmit_cmd_struct);
p->xmit_cbuffs[i] = ptr; /* */
ptr = ptr + XMIT_BUFF_SIZE;
p->xmit_buffs[i] = ptr; /* */
ptr = ptr + sizeof(struct tbd_struct);
if ((void __iomem *)ptr > (void __iomem *)p->iscp) {
printk(KERN_ERR "%s: not enough shared-mem for your configuration!\n",
dev->name);
return 1;
}
memset_io(p->xmit_cmds[i], 0,
sizeof(struct transmit_cmd_struct));
memset_io(p->xmit_buffs[i], 0,
sizeof(struct tbd_struct));
writew(make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]),
&p->xmit_cmds[i]->cmd_link);
writew(STAT_COMPL, &p->xmit_cmds[i]->cmd_status);
writew(CMD_XMIT|CMD_INT, &p->xmit_cmds[i]->cmd_cmd);
writew(make16(p->xmit_buffs[i]), &p->xmit_cmds[i]->tbd_offset);
writew(0xffff, &p->xmit_buffs[i]->next);
writel(make24(p->xmit_cbuffs[i]), &p->xmit_buffs[i]->buffer);
}
p->xmit_count = 0;
p->xmit_last = 0;
#ifndef NO_NOPCOMMANDS
p->nop_point = 0;
#endif
/*
*/
#ifndef NO_NOPCOMMANDS
writew(make16(p->nop_cmds[0]), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc);
ni_attn586();
wait_for_scb_cmd(dev);
#else
writew(make16(p->xmit_cmds[0]), &p->xmit_cmds[0]->cmd_link);
writew(CMD_XMIT | CMD_SUSPEND | CMD_INT, &p->xmit_cmds[0]->cmd_cmd);
#endif
/*
*/
writeb(readb(&p->scb->cus) & STAT_MASK, &p->scb->cmd_cuc);
ni_attn586();
udelay(16);
ni_enaint();
return 0;
}
static netdev_tx_t ni52_send_packet(struct sk_buff *skb,
struct net_device *dev)
{
int len, i;
#ifndef NO_NOPCOMMANDS
int next_nop;
#endif
struct priv *p = netdev_priv(dev);
if (skb->len > XMIT_BUFF_SIZE) {
printk(KERN_ERR "%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n", dev->name, XMIT_BUFF_SIZE, skb->len);
return NETDEV_TX_OK;
}
netif_stop_queue(dev);
memcpy_toio(p->xmit_cbuffs[p->xmit_count], skb->data, skb->len);
len = skb->len;
if (len < ETH_ZLEN) {
len = ETH_ZLEN;
memset_io(p->xmit_cbuffs[p->xmit_count]+skb->len, 0,
len - skb->len);
}
#if (NUM_XMIT_BUFFS == 1)
# ifdef NO_NOPCOMMANDS
#ifdef DEBUG
if (readb(&p->scb->cus) & CU_ACTIVE) {
printk(KERN_ERR "%s: Hmmm .. CU is still running and we wanna send a new packet.\n", dev->name);
printk(KERN_ERR "%s: stat: %04x %04x\n",
dev->name, readb(&p->scb->cus),
readw(&p->xmit_cmds[0]->cmd_status));
}
#endif
writew(TBD_LAST | len, &p->xmit_buffs[0]->size);
for (i = 0; i < 16; i++) {
writew(0, &p->xmit_cmds[0]->cmd_status);
wait_for_scb_cmd(dev);
if ((readb(&p->scb->cus) & CU_STATUS) == CU_SUSPEND)
writeb(CUC_RESUME, &p->scb->cmd_cuc);
else {
writew(make16(p->xmit_cmds[0]), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc);
}
ni_attn586();
if (!i)
dev_kfree_skb(skb);
wait_for_scb_cmd(dev);
/* */
if (readb(&p->scb->cus) & CU_ACTIVE)
break;
if (readw(&p->xmit_cmds[0]->cmd_status))
break;
if (i == 15)
printk(KERN_WARNING "%s: Can't start transmit-command.\n", dev->name);
}
# else
next_nop = (p->nop_point + 1) & 0x1;
writew(TBD_LAST | len, &p->xmit_buffs[0]->size);
writew(make16(p->nop_cmds[next_nop]), &p->xmit_cmds[0]->cmd_link);
writew(make16(p->nop_cmds[next_nop]),
&p->nop_cmds[next_nop]->cmd_link);
writew(0, &p->xmit_cmds[0]->cmd_status);
writew(0, &p->nop_cmds[next_nop]->cmd_status);
writew(make16(p->xmit_cmds[0]), &p->nop_cmds[p->nop_point]->cmd_link);
p->nop_point = next_nop;
dev_kfree_skb(skb);
# endif
#else
writew(TBD_LAST | len, &p->xmit_buffs[p->xmit_count]->size);
next_nop = p->xmit_count + 1
if (next_nop == NUM_XMIT_BUFFS)
next_nop = 0;
writew(0, &p->xmit_cmds[p->xmit_count]->cmd_status);
/* */
writew(make16(p->nop_cmds[next_nop]),
&p->nop_cmds[next_nop]->cmd_link);
writew(0, &p->nop_cmds[next_nop]->cmd_status);
writew(make16(p->xmit_cmds[p->xmit_count]),
&p->nop_cmds[p->xmit_count]->cmd_link);
p->xmit_count = next_nop;
{
unsigned long flags;
spin_lock_irqsave(&p->spinlock);
if (p->xmit_count != p->xmit_last)
netif_wake_queue(dev);
spin_unlock_irqrestore(&p->spinlock);
}
dev_kfree_skb(skb);
#endif
return NETDEV_TX_OK;
}
static int init586(struct net_device *dev)
{
void __iomem *ptr;
int i, result = 0;
struct priv *p = (struct priv *)dev->priv;
struct configure_cmd_struct __iomem *cfg_cmd;
struct iasetup_cmd_struct __iomem *ias_cmd;
struct tdr_cmd_struct __iomem *tdr_cmd;
struct mcsetup_cmd_struct __iomem *mc_cmd;
struct dev_mc_list *dmi = dev->mc_list;
int num_addrs = dev->mc_count;
ptr = p->scb + 1;
cfg_cmd = ptr; /* configure-command */
writew(0, &cfg_cmd->cmd_status);
writew(CMD_CONFIGURE | CMD_LAST, &cfg_cmd->cmd_cmd);
writew(0xFFFF, &cfg_cmd->cmd_link);
/* number of cfg bytes */
writeb(0x0a, &cfg_cmd->byte_cnt);
/* fifo-limit (8=tx:32/rx:64) */
writeb(fifo, &cfg_cmd->fifo);
/* hold or discard bad recv frames (bit 7) */
writeb(0x40, &cfg_cmd->sav_bf);
/* addr_len |!src_insert |pre-len |loopback */
writeb(0x2e, &cfg_cmd->adr_len);
writeb(0x00, &cfg_cmd->priority);
writeb(0x60, &cfg_cmd->ifs);;
writeb(0x00, &cfg_cmd->time_low);
writeb(0xf2, &cfg_cmd->time_high);
writeb(0x00, &cfg_cmd->promisc);;
if (dev->flags & IFF_ALLMULTI) {
int len = ((char __iomem *)p->iscp - (char __iomem *)ptr - 8) / 6;
if (num_addrs > len) {
printk(KERN_ERR "%s: switching to promisc. mode\n",
dev->name);
dev->flags |= IFF_PROMISC;
}
}
if (dev->flags & IFF_PROMISC)
writeb(0x01, &cfg_cmd->promisc);
writeb(0x00, &cfg_cmd->carr_coll);
writew(make16(cfg_cmd), &p->scb->cbl_offset);
writeb(0, &p->scb->cmd_ruc);
writeb(CUC_START, &p->scb->cmd_cuc); /* cmd.-unit start */
ni_attn586();
wait_for_stat_compl(cfg_cmd);
if ((readw(&cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) !=
(STAT_COMPL|STAT_OK)) {
printk(KERN_ERR "%s: configure command failed: %x\n",
dev->name, readw(&cfg_cmd->cmd_status));
return 1;
}
/*
* individual address setup
*/
ias_cmd = ptr;
writew(0, &ias_cmd->cmd_status);
writew(CMD_IASETUP | CMD_LAST, &ias_cmd->cmd_cmd);
writew(0xffff, &ias_cmd->cmd_link);
memcpy_toio(&ias_cmd->iaddr, (char *)dev->dev_addr, ETH_ALEN);
writew(make16(ias_cmd), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc); /* cmd.-unit start */
ni_attn586();
wait_for_stat_compl(ias_cmd);
if ((readw(&ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) !=
(STAT_OK|STAT_COMPL)) {
printk(KERN_ERR "%s (ni52): individual address setup command failed: %04x\n", dev->name, readw(&ias_cmd->cmd_status));
return 1;
}
/*
* TDR, wire check .. e.g. no resistor e.t.c
*/
tdr_cmd = ptr;
writew(0, &tdr_cmd->cmd_status);
writew(CMD_TDR | CMD_LAST, &tdr_cmd->cmd_cmd);
writew(0xffff, &tdr_cmd->cmd_link);
writew(0, &tdr_cmd->status);
writew(make16(tdr_cmd), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc); /* cmd.-unit start */
ni_attn586();
wait_for_stat_compl(tdr_cmd);
if (!(readw(&tdr_cmd->cmd_status) & STAT_COMPL))
printk(KERN_ERR "%s: Problems while running the TDR.\n",
dev->name);
else {
udelay(16);
result = readw(&tdr_cmd->status);
writeb(readb(&p->scb->cus) & STAT_MASK, &p->scb->cmd_cuc);
ni_attn586(); /* ack the interrupts */
if (result & TDR_LNK_OK)
;
else if (result & TDR_XCVR_PRB)
printk(KERN_ERR "%s: TDR: Transceiver problem. Check the cable(s)!\n",
dev->name);
else if (result & TDR_ET_OPN)
printk(KERN_ERR "%s: TDR: No correct termination %d clocks away.\n",
dev->name, result & TDR_TIMEMASK);
else if (result & TDR_ET_SRT) {
/* time == 0 -> strange :-) */
if (result & TDR_TIMEMASK)
printk(KERN_ERR "%s: TDR: Detected a short circuit %d clocks away.\n",
dev->name, result & TDR_TIMEMASK);
} else
printk(KERN_ERR "%s: TDR: Unknown status %04x\n",
dev->name, result);
}
/*
* Multicast setup
*/
if (num_addrs && !(dev->flags & IFF_PROMISC)) {
mc_cmd = ptr;
writew(0, &mc_cmd->cmd_status);
writew(CMD_MCSETUP | CMD_LAST, &mc_cmd->cmd_cmd);
writew(0xffff, &mc_cmd->cmd_link);
writew(num_addrs * 6, &mc_cmd->mc_cnt);
for (i = 0; i < num_addrs; i++, dmi = dmi->next)
memcpy_toio(mc_cmd->mc_list[i],
dmi->dmi_addr, 6);
writew(make16(mc_cmd), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc);
ni_attn586();
wait_for_stat_compl(mc_cmd);
if ((readw(&mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK))
!= (STAT_COMPL|STAT_OK))
printk(KERN_ERR "%s: Can't apply multicast-address-list.\n", dev->name);
}
/*
* alloc nop/xmit-cmds
*/
#if (NUM_XMIT_BUFFS == 1)
for (i = 0; i < 2; i++) {
p->nop_cmds[i] = ptr;
writew(CMD_NOP, &p->nop_cmds[i]->cmd_cmd);
writew(0, &p->nop_cmds[i]->cmd_status);
writew(make16(p->nop_cmds[i]), &p->nop_cmds[i]->cmd_link);
ptr = ptr + sizeof(struct nop_cmd_struct);
}
#else
for (i = 0; i < NUM_XMIT_BUFFS; i++) {
p->nop_cmds[i] = ptr;
writew(CMD_NOP, &p->nop_cmds[i]->cmd_cmd);
writew(0, &p->nop_cmds[i]->cmd_status);
writew(make16(p->nop_cmds[i]), &p->nop_cmds[i]->cmd_link);
ptr = ptr + sizeof(struct nop_cmd_struct);
}
#endif
ptr = alloc_rfa(dev, ptr); /* init receive-frame-area */
/*
* alloc xmit-buffs / init xmit_cmds
*/
for (i = 0; i < NUM_XMIT_BUFFS; i++) {
/* Transmit cmd/buff 0 */
p->xmit_cmds[i] = ptr;
ptr = ptr + sizeof(struct transmit_cmd_struct);
p->xmit_cbuffs[i] = ptr; /* char-buffs */
ptr = ptr + XMIT_BUFF_SIZE;
p->xmit_buffs[i] = ptr; /* TBD */
ptr = ptr + sizeof(struct tbd_struct);
if ((void __iomem *)ptr > (void __iomem *)p->iscp) {
printk(KERN_ERR "%s: not enough shared-mem for your configuration!\n",
dev->name);
return 1;
}
memset_io(p->xmit_cmds[i], 0,
sizeof(struct transmit_cmd_struct));
memset_io(p->xmit_buffs[i], 0,
sizeof(struct tbd_struct));
writew(make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]),
&p->xmit_cmds[i]->cmd_link);
writew(STAT_COMPL, &p->xmit_cmds[i]->cmd_status);
writew(CMD_XMIT|CMD_INT, &p->xmit_cmds[i]->cmd_cmd);
writew(make16(p->xmit_buffs[i]), &p->xmit_cmds[i]->tbd_offset);
writew(0xffff, &p->xmit_buffs[i]->next);
writel(make24(p->xmit_cbuffs[i]), &p->xmit_buffs[i]->buffer);
}
p->xmit_count = 0;
p->xmit_last = 0;
#ifndef NO_NOPCOMMANDS
p->nop_point = 0;
#endif
/*
* 'start transmitter'
*/
#ifndef NO_NOPCOMMANDS
writew(make16(p->nop_cmds[0]), &p->scb->cbl_offset);
writeb(CUC_START, &p->scb->cmd_cuc);
ni_attn586();
wait_for_scb_cmd(dev);
#else
writew(make16(p->xmit_cmds[0]), &p->xmit_cmds[0]->cmd_link);
writew(CMD_XMIT | CMD_SUSPEND | CMD_INT, &p->xmit_cmds[0]->cmd_cmd);
#endif
/*
* ack. interrupts
*/
writeb(readb(&p->scb->cus) & STAT_MASK, &p->scb->cmd_cuc);
ni_attn586();
udelay(16);
ni_enaint();
return 0;
}
