summaryrefslogtreecommitdiff
path: root/i386/i386at/gpl/linux/net/ni65.c
diff options
context:
space:
mode:
authorThomas Bushnell <thomas@gnu.org>1999-04-26 05:35:47 +0000
committerThomas Bushnell <thomas@gnu.org>1999-04-26 05:35:47 +0000
commit3a4e8f5c1c60f87e1c9e0878ddb6cf7dac8c59c0 (patch)
tree50b56b8570e175dbcff43b5f0d61103b6fea5906 /i386/i386at/gpl/linux/net/ni65.c
parent002b9c7d51f7fdb0fe222d4a6023655687c6e501 (diff)
1998-11-06 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>
* i386/i386at/gpl/linux: Moved to ... * linuxdev: ... here. * i386/Makefrag: Linux drivers specific code moved to ... * linuxdev/Makefrag: ... here. * i386/Files: Recreated. * i386/Subdirs: Likewise. * linuxdev/drivers: New directory. * linuxdev/arch: Likewise. * linuxdev/arch/i386: Likewise. * linuxdev/{block,scsi,net,pci}: Moved to ... * linuxdev/drivers/{block,scsi,net,pci}: ... here. * i386/{Drivers.in,device-drivers.h.in,driverlist.in}: Moved to ... * linuxdev/{Drivers.in,device-drivers.h.in,driverlist.in}: ... here. * linuxdev/{linux_emul.h,linux_*.c}: Moved to ... * linuxdev/arch/i386/{linux_emul.h,linux_*.c}: ... here. * linuxdev/arch/i386/linux_block.c: Include <linux_emul.h>, instead of <i386at/gpl/linux/linux_emul.h>. * linuxdev/arch/i386/linux_init.c: Likewise. * linuxdev/arch/i386/linux_kmem.c: Likewise. * linuxdev/arch/i386/linux_misc.c: Likewise. * linuxdev/arch/i386/linux_net.c: Likewise. * linuxdev/arch/i386/linux_sched.c: Likewise. * device/ds_routines.c: Include <linuxdev/device-drivers.h>, instead of <i386/device-drivers.h>. * linuxdev/arch/i386/linux_init.c: Likewise. * linuxdev/include/linux/autoconf.h: Likewise. * Makefile.in: Include $(srcdir)/linuxdev/Makefrag. * linuxdev/Drivers.in (AC_INIT): Use include/linux/autoconf.h, instead of i386/i386asm.sym.
Diffstat (limited to 'i386/i386at/gpl/linux/net/ni65.c')
-rw-r--r--i386/i386at/gpl/linux/net/ni65.c648
1 files changed, 0 insertions, 648 deletions
diff --git a/i386/i386at/gpl/linux/net/ni65.c b/i386/i386at/gpl/linux/net/ni65.c
deleted file mode 100644
index 44a5811..0000000
--- a/i386/i386at/gpl/linux/net/ni65.c
+++ /dev/null
@@ -1,648 +0,0 @@
-/*
- * ni6510 (am7990 'lance' chip) driver for Linux-net-3 by MH
- * Alphacode v0.33 (94/08/22) for 1.1.47 (or later)
- *
- * ----------------------------------------------------------
- * WARNING: DOESN'T WORK ON MACHINES WITH MORE THAN 16MB !!!!
- * ----------------------------------------------------------
- *
- * copyright (c) 1994 M.Hipp
- *
- * This is an extension to the Linux operating system, and is covered by the
- * same Gnu Public License that covers the Linux-kernel.
- *
- * comments/bugs/suggestions can be sent to:
- * Michael Hipp
- * email: mhipp@student.uni-tuebingen.de
- *
- * sources:
- * some things are from the 'ni6510-packet-driver for dos by Russ Nelson'
- * and from the original drivers by D.Becker
- */
-
-/*
- * Nov.18: multicast tweaked (AC).
- *
- * Aug.22: changes in xmit_intr (ack more than one xmitted-packet), ni65_send_packet (p->lock) (MH)
- *
- * July.16: fixed bugs in recv_skb and skb-alloc stuff (MH)
- */
-
-/*
- * known BUGS: 16MB limit
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/malloc.h>
-#include <linux/interrupt.h>
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include "ni65.h"
-
-/************************************
- * skeleton-stuff
- */
-
-#ifndef HAVE_PORTRESERVE
-#define check_region(ioaddr, size) 0
-#define request_region(ioaddr, size,name) do ; while (0)
-#endif
-
-#ifndef NET_DEBUG
-#define NET_DEBUG 2
-#endif
-/*
-static unsigned int net_debug = NET_DEBUG;
-*/
-
-#define NI65_TOTAL_SIZE 16
-
-#define SA_ADDR0 0x02
-#define SA_ADDR1 0x07
-#define SA_ADDR2 0x01
-#define CARD_ID0 0x00
-#define CARD_ID1 0x55
-
-/*****************************************/
-
-#define PORT dev->base_addr
-
-#define RMDNUM 8
-#define RMDNUMMASK 0x6000 /* log2(RMDNUM)<<13 */
-#define TMDNUM 4
-#define TMDNUMMASK 0x4000 /* log2(TMDNUM)<<13 */
-
-#define R_BUF_SIZE 1518
-#define T_BUF_SIZE 1518
-
-#define MEMSIZE 8+RMDNUM*8+TMDNUM*8
-
-#define L_DATAREG 0x00
-#define L_ADDRREG 0x02
-
-#define L_RESET 0x04
-#define L_CONFIG 0x05
-#define L_EBASE 0x08
-
-/*
- * to access the am7990-regs, you have to write
- * reg-number into L_ADDRREG, then you can access it using L_DATAREG
- */
-#define CSR0 0x00
-#define CSR1 0x01
-#define CSR2 0x02
-#define CSR3 0x03
-
-/* if you #define NO_STATIC the driver is faster but you will have (more) problems with >16MB memory */
-#undef NO_STATIC
-
-#define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);inw(PORT+L_ADDRREG); \
- outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);}
-#define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_ADDRREG),\
- inw(PORT+L_DATAREG))
-#define writedatareg(val) {outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);}
-
-static int ni65_probe1(struct device *dev,int);
-static void ni65_interrupt(int irq, struct pt_regs *regs);
- static void recv_intr(struct device *dev);
- static void xmit_intr(struct device *dev);
-static int ni65_open(struct device *dev);
- static int am7990_reinit(struct device *dev);
-static int ni65_send_packet(struct sk_buff *skb, struct device *dev);
-static int ni65_close(struct device *dev);
-static struct enet_statistics *ni65_get_stats(struct device *);
-
-static void set_multicast_list(struct device *dev);
-
-struct priv
-{
- struct init_block ib;
- void *memptr;
- struct rmd *rmdhead;
- struct tmd *tmdhead;
- int rmdnum;
- int tmdnum,tmdlast;
- struct sk_buff *recv_skb[RMDNUM];
- void *tmdbufs[TMDNUM];
- int lock,xmit_queued;
- struct enet_statistics stats;
-};
-
-int irqtab[] = { 9,12,15,5 }; /* irq config-translate */
-int dmatab[] = { 0,3,5,6 }; /* dma config-translate */
-
-/*
- * open (most done by init)
- */
-
-static int ni65_open(struct device *dev)
-{
- if(am7990_reinit(dev))
- {
- dev->tbusy = 0;
- dev->interrupt = 0;
- dev->start = 1;
- return 0;
- }
- else
- {
- dev->start = 0;
- return -EAGAIN;
- }
-}
-
-static int ni65_close(struct device *dev)
-{
- outw(0,PORT+L_RESET); /* that's the hard way */
- dev->tbusy = 1;
- dev->start = 0;
- return 0;
-}
-
-/*
- * Probe The Card (not the lance-chip)
- * and set hardaddress
- */
-
-int ni65_probe(struct device *dev)
-{
- int *port, ports[] = {0x300,0x320,0x340,0x360, 0};
- int base_addr = dev->base_addr;
-
- if (base_addr > 0x1ff) /* Check a single specified location. */
- return ni65_probe1(dev, base_addr);
- else if (base_addr > 0) /* Don't probe at all. */
- return ENXIO;
-
- for (port = ports; *port; port++)
- {
- int ioaddr = *port;
- if (check_region(ioaddr, NI65_TOTAL_SIZE))
- continue;
- if( !(inb(ioaddr+L_EBASE+6) == CARD_ID0) ||
- !(inb(ioaddr+L_EBASE+7) == CARD_ID1) )
- continue;
- dev->base_addr = ioaddr;
- if (ni65_probe1(dev, ioaddr) == 0)
- return 0;
- }
-
- dev->base_addr = base_addr;
- return ENODEV;
-}
-
-
-static int ni65_probe1(struct device *dev,int ioaddr)
-{
- int i;
- unsigned char station_addr[6];
- struct priv *p;
-
- for(i=0;i<6;i++)
- station_addr[i] = dev->dev_addr[i] = inb(PORT+L_EBASE+i);
-
- if(station_addr[0] != SA_ADDR0 || station_addr[1] != SA_ADDR1)
- {
- printk("%s: wrong Hardaddress \n",dev->name);
- return ENODEV;
- }
-
- if(dev->irq == 0)
- dev->irq = irqtab[(inw(PORT+L_CONFIG)>>2)&3];
- if(dev->dma == 0)
- dev->dma = dmatab[inw(PORT+L_CONFIG)&3];
-
- printk("%s: %s found at %#3lx, IRQ %d DMA %d.\n", dev->name,
- "network card", dev->base_addr, dev->irq,dev->dma);
-
- {
- int irqval = request_irq(dev->irq, &ni65_interrupt,0,"ni65");
- if (irqval) {
- printk ("%s: unable to get IRQ %d (irqval=%d).\n",
- dev->name,dev->irq, irqval);
- return EAGAIN;
- }
- if(request_dma(dev->dma, "ni65") != 0)
- {
- printk("%s: Can't request dma-channel %d\n",dev->name,(int) dev->dma);
- free_irq(dev->irq);
- return EAGAIN;
- }
- }
- irq2dev_map[dev->irq] = dev;
-
- /* Grab the region so we can find another board if autoIRQ fails. */
- request_region(ioaddr,NI65_TOTAL_SIZE,"ni65");
-
- p = dev->priv = (void *) kmalloc(sizeof(struct priv),GFP_KERNEL);
- if (p == NULL)
- return -ENOMEM;
- memset((char *) dev->priv,0,sizeof(struct priv));
-
- dev->open = ni65_open;
- dev->stop = ni65_close;
- dev->hard_start_xmit = ni65_send_packet;
- dev->get_stats = ni65_get_stats;
- dev->set_multicast_list = set_multicast_list;
-
- ether_setup(dev);
-
- dev->flags &= ~IFF_MULTICAST;
- dev->interrupt = 0;
- dev->tbusy = 0;
- dev->start = 0;
-
- if( (p->memptr = kmalloc(MEMSIZE,GFP_KERNEL)) == NULL) {
- printk("%s: Can't alloc TMD/RMD-buffer.\n",dev->name);
- return EAGAIN;
- }
- if( (unsigned long) (p->memptr + MEMSIZE) & 0xff000000) {
- printk("%s: Can't alloc TMD/RMD buffer in lower 16MB!\n",dev->name);
- return EAGAIN;
- }
- p->tmdhead = (struct tmd *) ((( (unsigned long)p->memptr ) + 8) & 0xfffffff8);
- p->rmdhead = (struct rmd *) (p->tmdhead + TMDNUM);
-
-#ifndef NO_STATIC
- for(i=0;i<TMDNUM;i++)
- {
- if( (p->tmdbufs[i] = kmalloc(T_BUF_SIZE,GFP_ATOMIC)) == NULL) {
- printk("%s: Can't alloc Xmit-Mem.\n",dev->name);
- return EAGAIN;
- }
- if( (unsigned long) (p->tmdbufs[i]+T_BUF_SIZE) & 0xff000000) {
- printk("%s: Can't alloc Xmit-Mem in lower 16MB!\n",dev->name);
- return EAGAIN;
- }
- }
-#endif
-
- for(i=0;i<RMDNUM;i++)
- {
- if( (p->recv_skb[i] = dev_alloc_skb(R_BUF_SIZE)) == NULL) {
- printk("%s: unable to alloc recv-mem\n",dev->name);
- return EAGAIN;
- }
- if( (unsigned long) (p->recv_skb[i]->data + R_BUF_SIZE) & 0xff000000) {
- printk("%s: unable to alloc receive-memory in lower 16MB!\n",dev->name);
- return EAGAIN;
- }
- }
-
- return 0; /* we've found everything */
-}
-
-/*
- * init lance (write init-values .. init-buffers) (open-helper)
- */
-
-static int am7990_reinit(struct device *dev)
-{
- int i,j;
- struct tmd *tmdp;
- struct rmd *rmdp;
- struct priv *p = (struct priv *) dev->priv;
-
- p->lock = 0;
- p->xmit_queued = 0;
-
- disable_dma(dev->dma); /* I've never worked with dma, but we do it like the packetdriver */
- set_dma_mode(dev->dma,DMA_MODE_CASCADE);
- enable_dma(dev->dma);
-
- outw(0,PORT+L_RESET); /* first: reset the card */
- if(inw(PORT+L_DATAREG) != 0x4)
- {
- printk("%s: can't RESET ni6510 card: %04x\n",dev->name,(int) inw(PORT+L_DATAREG));
- disable_dma(dev->dma);
- free_dma(dev->dma);
- free_irq(dev->irq);
- return 0;
- }
-
- /* here: memset all buffs to zero */
-
- memset(p->memptr,0,MEMSIZE);
-
- p->tmdnum = 0; p->tmdlast = 0;
- for(i=0;i<TMDNUM;i++)
- {
- tmdp = p->tmdhead + i;
-#ifndef NO_STATIC
- tmdp->u.buffer = (unsigned long) p->tmdbufs[i];
-#endif
- tmdp->u.s.status = XMIT_START | XMIT_END;
- }
-
- p->rmdnum = 0;
- for(i=0;i<RMDNUM;i++)
- {
- rmdp = p->rmdhead + i;
- rmdp->u.buffer = (unsigned long) p->recv_skb[i]->data;
- rmdp->u.s.status = RCV_OWN;
- rmdp->blen = -R_BUF_SIZE;
- rmdp->mlen = 0;
- }
-
- for(i=0;i<6;i++)
- {
- p->ib.eaddr[i] = dev->dev_addr[i];
- }
- p->ib.mode = 0;
- for(i=0;i<8;i++)
- p->ib.filter[i] = 0;
- p->ib.trplow = (unsigned short) (( (unsigned long) p->tmdhead ) & 0xffff);
- p->ib.trphigh = (unsigned short) ((( (unsigned long) p->tmdhead )>>16) & 0x00ff) | TMDNUMMASK;
- p->ib.rrplow = (unsigned short) (( (unsigned long) p->rmdhead ) & 0xffff);
- p->ib.rrphigh = (unsigned short) ((( (unsigned long) p->rmdhead )>>16) & 0x00ff) | RMDNUMMASK;
-
- writereg(0,CSR3); /* busmaster/no word-swap */
- writereg((unsigned short) (((unsigned long) &(p->ib)) & 0xffff),CSR1);
- writereg((unsigned short) (((unsigned long) &(p->ib))>>16),CSR2);
-
- writereg(CSR0_INIT,CSR0); /* this changes L_ADDRREG to CSR0 */
-
- /*
- * NOW, WE NEVER WILL CHANGE THE L_ADDRREG, CSR0 IS ALWAYS SELECTED
- */
-
- for(i=0;i<5;i++)
- {
- for(j=0;j<2000000;j++); /* wait a while */
- if(inw(PORT+L_DATAREG) & CSR0_IDON) break; /* init ok ? */
- }
- if(i == 5)
- {
- printk("%s: can't init am7990, status: %04x\n",dev->name,(int) inw(PORT+L_DATAREG));
- disable_dma(dev->dma);
- free_dma(dev->dma);
- free_irq(dev->irq);
- return 0; /* false */
- }
-
- writedatareg(CSR0_CLRALL | CSR0_INEA | CSR0_STRT); /* start lance , enable interrupts */
-
- return 1; /* OK */
-}
-
-/*
- * interrupt handler
- */
-
-static void ni65_interrupt(int irq, struct pt_regs * regs)
-{
- int csr0;
- struct device *dev = (struct device *) irq2dev_map[irq];
-
- if (dev == NULL) {
- printk ("net_interrupt(): irq %d for unknown device.\n", irq);
- return;
- }
-
- csr0 = inw(PORT+L_DATAREG);
- writedatareg(csr0 & CSR0_CLRALL); /* ack interrupts, disable int. */
-
- dev->interrupt = 1;
-
- if(csr0 & CSR0_ERR)
- {
- struct priv *p = (struct priv *) dev->priv;
-
- if(csr0 & CSR0_BABL)
- p->stats.tx_errors++;
- if(csr0 & CSR0_MISS)
- p->stats.rx_errors++;
- }
-
- if(csr0 & CSR0_RINT) /* RECV-int? */
- {
- recv_intr(dev);
- }
- if(csr0 & CSR0_TINT) /* XMIT-int? */
- {
- xmit_intr(dev);
- }
-
- writedatareg(CSR0_INEA); /* reenable inter. */
- dev->interrupt = 0;
-
- return;
-}
-
-/*
- * We have received an Xmit-Interrupt ..
- * send a new packet if necessary
- */
-
-static void xmit_intr(struct device *dev)
-{
- int tmdstat;
- struct tmd *tmdp;
- struct priv *p = (struct priv *) dev->priv;
-
-#ifdef NO_STATIC
- struct sk_buff *skb;
-#endif
-
- while(p->xmit_queued)
- {
- tmdp = p->tmdhead + p->tmdlast;
- tmdstat = tmdp->u.s.status;
- if(tmdstat & XMIT_OWN)
- break;
-#ifdef NO_STATIC
- skb = (struct sk_buff *) p->tmdbufs[p->tmdlast];
- dev_kfree_skb(skb,FREE_WRITE);
-#endif
-
- if(tmdstat & XMIT_ERR)
- {
- printk("%s: xmit-error: %04x %04x\n",dev->name,(int) tmdstat,(int) tmdp->status2);
- if(tmdp->status2 & XMIT_TDRMASK)
- printk("%s: tdr-problems (e.g. no resistor)\n",dev->name);
-
- /* checking some errors */
- if(tmdp->status2 & XMIT_RTRY)
- p->stats.tx_aborted_errors++;
- if(tmdp->status2 & XMIT_LCAR)
- p->stats.tx_carrier_errors++;
- p->stats.tx_errors++;
- tmdp->status2 = 0;
- }
- else
- p->stats.tx_packets++;
-
- p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
- if(p->tmdlast == p->tmdnum)
- p->xmit_queued = 0;
- }
-
- dev->tbusy = 0;
- mark_bh(NET_BH);
-}
-
-/*
- * We have received a packet
- */
-
-static void recv_intr(struct device *dev)
-{
- struct rmd *rmdp;
- int rmdstat,len;
- struct sk_buff *skb,*skb1;
- struct priv *p = (struct priv *) dev->priv;
-
- rmdp = p->rmdhead + p->rmdnum;
- while(!( (rmdstat = rmdp->u.s.status) & RCV_OWN))
- {
- if( (rmdstat & (RCV_START | RCV_END)) != (RCV_START | RCV_END) ) /* is packet start & end? */
- {
- if(rmdstat & RCV_START)
- {
- p->stats.rx_errors++;
- p->stats.rx_length_errors++;
- printk("%s: packet too long\n",dev->name);
- }
- rmdp->u.s.status = RCV_OWN; /* change owner */
- }
- else if(rmdstat & RCV_ERR)
- {
- printk("%s: receive-error: %04x\n",dev->name,(int) rmdstat );
- p->stats.rx_errors++;
- if(rmdstat & RCV_FRAM) p->stats.rx_frame_errors++;
- if(rmdstat & RCV_OFLO) p->stats.rx_over_errors++;
- if(rmdstat & RCV_CRC) p->stats.rx_crc_errors++;
- rmdp->u.s.status = RCV_OWN;
- printk("%s: lance-status: %04x\n",dev->name,(int) inw(PORT+L_DATAREG));
- }
- else
- {
- len = (rmdp->mlen & 0x0fff) - 4; /* -4: ignore FCS */
- skb = dev_alloc_skb(R_BUF_SIZE);
- if(skb != NULL)
- {
- if( (unsigned long) (skb->data + R_BUF_SIZE) & 0xff000000) {
- memcpy(skb_put(skb,len),p->recv_skb[p->rmdnum]->data,len);
- skb1 = skb;
- }
- else {
- skb1 = p->recv_skb[p->rmdnum];
- p->recv_skb[p->rmdnum] = skb;
- rmdp->u.buffer = (unsigned long) skb_put(skb1,len);
- }
- rmdp->u.s.status = RCV_OWN;
- rmdp->mlen = 0; /* not necc ???? */
- skb1->dev = dev;
- p->stats.rx_packets++;
- skb1->protocol=eth_type_trans(skb1,dev);
- netif_rx(skb1);
- }
- else
- {
- rmdp->u.s.status = RCV_OWN;
- printk("%s: can't alloc new sk_buff\n",dev->name);
- p->stats.rx_dropped++;
- }
- }
- p->rmdnum++; p->rmdnum &= RMDNUM-1;
- rmdp = p->rmdhead + p->rmdnum;
- }
-}
-
-/*
- * kick xmitter ..
- */
-
-static int ni65_send_packet(struct sk_buff *skb, struct device *dev)
-{
- struct priv *p = (struct priv *) dev->priv;
- struct tmd *tmdp;
-
- if(dev->tbusy)
- {
- int tickssofar = jiffies - dev->trans_start;
- if (tickssofar < 25)
- return 1;
-
- printk("%s: xmitter timed out, try to restart!\n",dev->name);
- am7990_reinit(dev);
- dev->tbusy=0;
- dev->trans_start = jiffies;
- }
-
- if(skb == NULL)
- {
- dev_tint(dev);
- return 0;
- }
-
- if (skb->len <= 0)
- return 0;
-
- if (set_bit(0, (void*)&dev->tbusy) != 0)
- {
- printk("%s: Transmitter access conflict.\n", dev->name);
- return 1;
- }
- if(set_bit(0,(void*) &p->lock) != 0)
- {
- printk("%s: Queue was locked!\n",dev->name);
- return 1;
- }
-
- {
- short len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
-
- tmdp = p->tmdhead + p->tmdnum;
-
-#ifdef NO_STATIC
- tmdp->u.buffer = (unsigned long) (skb->data);
- p->tmdbufs[p->tmdnum] = skb;
-#else
- memcpy((char *) (tmdp->u.buffer & 0x00ffffff),(char *)skb->data,skb->len);
- dev_kfree_skb (skb, FREE_WRITE);
-#endif
- tmdp->blen = -len;
- tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;
-
- cli();
- p->xmit_queued = 1;
- writedatareg(CSR0_TDMD | CSR0_INEA); /* enable xmit & interrupt */
- p->tmdnum++; p->tmdnum &= TMDNUM-1;
-
- if( !((p->tmdhead + p->tmdnum)->u.s.status & XMIT_OWN) )
- dev->tbusy = 0;
- p->lock = 0;
- sti();
-
- dev->trans_start = jiffies;
-
- }
-
- return 0;
-}
-
-static struct enet_statistics *ni65_get_stats(struct device *dev)
-{
- return &((struct priv *) dev->priv)->stats;
-}
-
-static void set_multicast_list(struct device *dev)
-{
-}
-
-/*
- * END of ni65.c
- */
-