+++ /dev/null
-/* daynaport.c: A Macintosh 8390 based ethernet driver for linux. */
-/*
- Derived from code:
-
- Written 1993-94 by Donald Becker.
-
- Copyright 1993 United States Government as represented by the
- Director, National Security Agency.
-
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- TODO:
-
- The block output routines may be wrong for non Dayna
- cards
-
- Fix this driver so that it will attempt to use the info
- (i.e. iobase, iosize) given to it by the new and improved
- NuBus code.
-
- Despite its misleading filename, this driver is not Dayna-specific
- anymore. */
-/* Cabletron E6100 card support added by Tony Mantler (eek@escape.ca) April 1999 */
-
-static const char *version =
- "daynaport.c: v0.02 1999-05-17 Alan Cox (Alan.Cox@linux.org) and others\n";
-static int version_printed;
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/nubus.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/hwtest.h>
-#include <asm/macints.h>
-#include <linux/delay.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include "8390.h"
-
-static int ns8390_probe1(struct net_device *dev, int word16, char *name, int id,
- int prom, struct nubus_dev *ndev);
-
-static int ns8390_open(struct net_device *dev);
-static void ns8390_no_reset(struct net_device *dev);
-static int ns8390_close_card(struct net_device *dev);
-
-/* Interlan */
-static void interlan_reset(struct net_device *dev);
-
-/* Dayna */
-static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
- int ring_page);
-static void dayna_block_input(struct net_device *dev, int count,
- struct sk_buff *skb, int ring_offset);
-static void dayna_block_output(struct net_device *dev, int count,
- const unsigned char *buf, const int start_page);
-
-/* Sane (32-bit chunk memory read/write) */
-static void sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
- int ring_page);
-static void sane_block_input(struct net_device *dev, int count,
- struct sk_buff *skb, int ring_offset);
-static void sane_block_output(struct net_device *dev, int count,
- const unsigned char *buf, const int start_page);
-
-/* Slow Sane (16-bit chunk memory read/write) */
-static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
- int ring_page);
-static void slow_sane_block_input(struct net_device *dev, int count,
- struct sk_buff *skb, int ring_offset);
-static void slow_sane_block_output(struct net_device *dev, int count,
- const unsigned char *buf, const int start_page);
-
-\f
-#define WD_START_PG 0x00 /* First page of TX buffer */
-#define WD03_STOP_PG 0x20 /* Last page +1 of RX ring */
-#define WD13_STOP_PG 0x40 /* Last page +1 of RX ring */
-
-#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
-#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
-#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */
-
-
-#define DAYNA_MAC_BASE 0xf0007
-#define DAYNA_8390_BASE 0x80000 /* 3 */
-#define DAYNA_8390_MEM 0x00000
-#define DAYNA_MEMSIZE 0x04000 /* First word of each long ! */
-
-#define APPLE_8390_BASE 0xE0000
-#define APPLE_8390_MEM 0xD0000
-#define APPLE_MEMSIZE 8192 /* FIXME: need to dynamically check */
-
-#define KINETICS_MAC_BASE 0xf0004 /* first byte of each long */
-#define KINETICS_8390_BASE 0x80000
-#define KINETICS_8390_MEM 0x00000 /* first word of each long */
-#define KINETICS_MEMSIZE 8192 /* FIXME: need to dynamically check */
-/*#define KINETICS_MEMSIZE (0x10000/2) * CSA: on the board I have, at least */
-
-#define CABLETRON_8390_BASE 0x90000
-#define CABLETRON_8390_MEM 0x00000
-
-static int test_8390(volatile char *ptr, int scale)
-{
- int regd;
- int v;
-
- if(hwreg_present(&ptr[0x00])==0)
- return -EIO;
- if(hwreg_present(&ptr[0x0D<<scale])==0)
- return -EIO;
- if(hwreg_present(&ptr[0x0D<<scale])==0)
- return -EIO;
- ptr[0x00]=E8390_NODMA+E8390_PAGE1+E8390_STOP;
- regd=ptr[0x0D<<scale];
- ptr[0x0D<<scale]=0xFF;
- ptr[0x00]=E8390_NODMA+E8390_PAGE0;
- v=ptr[0x0D<<scale];
- if(ptr[0x0D<<scale]!=0)
- {
- ptr[0x0D<<scale]=regd;
- return -ENODEV;
- }
-/* printk("NS8390 found at %p scaled %d\n", ptr,scale);*/
- return 0;
-}
-/*
- * Identify the species of NS8390 card/driver we need
- */
-
-enum mac8390_type {
- NS8390_DAYNA,
- NS8390_INTERLAN,
- NS8390_KINETICS,
- NS8390_APPLE,
- NS8390_FARALLON,
- NS8390_ASANTE,
- NS8390_CABLETRON
-};
-
-static int __init ns8390_ident(struct nubus_dev* ndev)
-{
- /* This really needs to be tested and tested hard. */
-
- /* Summary of what we know so far --
- * SW: 0x0104 -- asante, 16 bit, back4_offsets
- * SW: 0x010b -- daynaport, 16 bit, fwrd4_offsets
- * SW: 0x010c -- farallon, 16 bit, back4_offsets, no long word access
- * SW: 0x011a -- focus, [no details yet]
- * SW: ?????? -- interlan, 16 bit, back4_offsets, funny reset
- * SW: ?????? -- kinetics, 8 bit, back4_offsets
- * -- so i've this hypothesis going that says DrSW&1 says whether the
- * map is forward or backwards -- and maybe DrSW&256 says what the
- * register spacing is -- for all cards that report a DrSW in some
- * range.
- * This would allow the "apple compatible" driver to drive many
- * seemingly different types of cards. More DrSW info is needed
- * to investigate this properly. [CSA, 21-May-1999]
- */
- /* Dayna ex Kinetics board */
- if(ndev->dr_sw == NUBUS_DRSW_DAYNA)
- return NS8390_DAYNA;
- if(ndev->dr_sw == NUBUS_DRSW_ASANTE)
- return NS8390_ASANTE;
- if(ndev->dr_sw == NUBUS_DRSW_FARALLON) /* farallon or sonic systems */
- return NS8390_FARALLON;
- if(ndev->dr_sw == NUBUS_DRSW_KINETICS)
- return NS8390_KINETICS;
- /* My ATI Engineering card with this combination crashes the */
- /* driver trying to xmit packets. Best not touch it for now. */
- /* - 1999-05-20 (funaho@jurai.org) */
- if(ndev->dr_sw == NUBUS_DRSW_FOCUS)
- return -1;
-
- /* Check the HW on this one, because it shares the same DrSW as
- the on-board SONIC chips */
- if(ndev->dr_hw == NUBUS_DRHW_CABLETRON)
- return NS8390_CABLETRON;
- /* does anyone have one of these? */
- if(ndev->dr_hw == NUBUS_DRHW_INTERLAN)
- return NS8390_INTERLAN;
-
- /* FIXME: what do genuine Apple boards look like? */
- return -1;
-}
-
-/*
- * Memory probe for 8390 cards
- */
-
-static int __init apple_8390_mem_probe(volatile unsigned short *p)
-{
- int i, j;
- /*
- * Algorithm.
- * 1. Check each block size of memory doesn't fault
- * 2. Write a value to it
- * 3. Check all previous blocks are unaffected
- */
-
- for(i=0;i<2;i++)
- {
- volatile unsigned short *m=p+4096*i;
- /* Unwriteable - we have a fully decoded card and the
- RAM end located */
-
- if(hwreg_present(m)==0)
- return 8192*i;
-
- *m=0xA5A0|i;
-
- for(j=0;j<i;j++)
- {
- /* Partial decode and wrap ? */
- if(p[4096*j]!=(0xA5A0|j))
- {
- /* This is the first misdecode, so it had
- one less page than we tried */
- return 8192*i;
- }
- j++;
- }
- /* Ok it still decodes.. move on 8K */
- }
- /*
- * We don't look past 16K. That should cover most cards
- * and above 16K there isnt really any gain.
- */
- return 16384;
- }
-
-/*
- * Probe for 8390 cards.
- * The ns8390_probe1() routine initializes the card and fills the
- * station address field.
- *
- * The NuBus interface has changed! We now scan for these somewhat
- * like how the PCI and Zorro drivers do. It's not clear whether
- * this is actually better, but it makes things more consistent.
- *
- * dev->mem_start points
- * at the memory ring, dev->mem_end gives the end of it.
- */
-
-int __init mac8390_probe(struct net_device *dev)
-{
- static int slots;
- volatile unsigned short *i;
- volatile unsigned char *p;
- int plen;
- int id;
- static struct nubus_dev* ndev;
-
- /* Find the first card that hasn't already been seen */
- while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
- NUBUS_TYPE_ETHERNET, ndev)) != NULL) {
- /* Have we seen it already? */
- if (slots & (1<<ndev->board->slot))
- continue;
- slots |= 1<<ndev->board->slot;
-
- /* Is it one of ours? */
- if ((id = ns8390_ident(ndev)) != -1)
- break;
- }
-
- /* Hm. No more cards, then */
- if (ndev == NULL)
- return -ENODEV;
-
- dev = init_etherdev(dev, 0);
- if (!dev)
- return -ENOMEM;
- SET_MODULE_OWNER(dev);
-
- if (!version_printed) {
- printk(KERN_INFO "%s", version);
- version_printed = 1;
- }
-
- /*
- * Dayna specific init
- */
- if(id==NS8390_DAYNA)
- {
- dev->base_addr = (int)(ndev->board->slot_addr+DAYNA_8390_BASE);
- dev->mem_start = (int)(ndev->board->slot_addr+DAYNA_8390_MEM);
- dev->mem_end = dev->mem_start+DAYNA_MEMSIZE; /* 8K it seems */
-
- printk(KERN_INFO "%s: daynaport. testing board: ", dev->name);
-
- printk("memory - ");
-
- i = (void *)dev->mem_start;
- memset((void *)i,0xAA, DAYNA_MEMSIZE);
- while(i<(volatile unsigned short *)dev->mem_end)
- {
- if(*i!=0xAAAA)
- goto membad;
- *i=0x5678; /* make sure we catch byte smearing */
- if(*i!=0x5678)
- goto membad;
- i+=2; /* Skip a word */
- }
-
- printk("controller - ");
-
- p=(void *)dev->base_addr;
- plen=0;
-
- while(plen<0x3FF00)
- {
- if(test_8390(p,0)==0)
- break;
- if(test_8390(p,1)==0)
- break;
- if(test_8390(p,2)==0)
- break;
- if(test_8390(p,3)==0)
- break;
- plen++;
- p++;
- }
- if(plen==0x3FF00)
- goto membad;
- printk("OK\n");
- dev->irq = SLOT2IRQ(ndev->board->slot);
- if(ns8390_probe1(dev, 0, "dayna", id, -1, ndev)==0)
- return 0;
- }
- /* Cabletron */
- if (id==NS8390_CABLETRON) {
- int memsize = 16<<10; /* fix this */
-
- dev->base_addr=(int)(ndev->board->slot_addr+CABLETRON_8390_BASE);
- dev->mem_start=(int)(ndev->board->slot_addr+CABLETRON_8390_MEM);
- dev->mem_end=dev->mem_start+memsize;
- dev->irq = SLOT2IRQ(ndev->board->slot);
-
- /* The base address is unreadable if 0x00 has been written to the command register */
- /* Reset the chip by writing E8390_NODMA+E8390_PAGE0+E8390_STOP just to be sure */
- i = (void *)dev->base_addr;
- *i = 0x21;
-
- printk(KERN_INFO "%s: cabletron: testing board: ", dev->name);
- printk("%dK memory - ", memsize>>10);
- i=(void *)dev->mem_start;
- while(i<(volatile unsigned short *)(dev->mem_start+memsize))
- {
- *i=0xAAAA;
- if(*i!=0xAAAA)
- goto membad;
- *i=0x5555;
- if(*i!=0x5555)
- goto membad;
- i+=2; /* Skip a word */
- }
- printk("OK\n");
-
- if(ns8390_probe1(dev, 1, "cabletron", id, -1, ndev)==0)
- return 0;
- }
- /* Apple, Farallon, Asante */
- if(id==NS8390_APPLE || id==NS8390_FARALLON || id==NS8390_ASANTE)
- {
- int memsize;
-
- dev->base_addr=(int)(ndev->board->slot_addr+APPLE_8390_BASE);
- dev->mem_start=(int)(ndev->board->slot_addr+APPLE_8390_MEM);
-
- memsize = apple_8390_mem_probe((void *)dev->mem_start);
-
- dev->mem_end=dev->mem_start+memsize;
- dev->irq = SLOT2IRQ(ndev->board->slot);
-
- switch(id)
- {
- case NS8390_FARALLON:
- printk(KERN_INFO "%s: farallon: testing board: ", dev->name);
- break;
- case NS8390_ASANTE:
- printk(KERN_INFO "%s: asante: testing board: ", dev->name);
- break;
- case NS8390_APPLE:
- default:
- printk(KERN_INFO "%s: apple/clone: testing board: ", dev->name);
- break;
- }
-
- printk("%dK memory - ", memsize>>10);
-
- i=(void *)dev->mem_start;
- memset((void *)i,0xAA, memsize);
- while(i<(volatile unsigned short *)dev->mem_end)
- {
- if(*i!=0xAAAA)
- goto membad;
- *i=0x5555;
- if(*i!=0x5555)
- goto membad;
- i+=2; /* Skip a word */
- }
- printk("OK\n");
-
- switch (id)
- {
- case NS8390_FARALLON:
- if(ns8390_probe1(dev, 1, "farallon", id, -1, ndev)==0)
- return 0;
- break;
- case NS8390_ASANTE:
- if(ns8390_probe1(dev, 1, "asante", id, -1, ndev)==0)
- return 0;
- break;
- case NS8390_APPLE:
- default:
- if(ns8390_probe1(dev, 1, "apple/clone", id, -1, ndev)==0)
- return 0;
- break;
- }
- }
- /* Interlan */
- if(id==NS8390_INTERLAN)
- {
- /* As apple and asante */
- dev->base_addr=(int)(ndev->board->slot_addr+APPLE_8390_BASE);
- dev->mem_start=(int)(ndev->board->slot_addr+APPLE_8390_MEM);
- dev->mem_end=dev->mem_start+APPLE_MEMSIZE; /* 8K it seems */
- dev->irq = SLOT2IRQ(ndev->board->slot);
- if(ns8390_probe1(dev, 1, "interlan", id, -1, ndev)==0)
- return 0;
- }
- /* Kinetics (Shiva Etherport) */
- if(id==NS8390_KINETICS)
- {
- dev->base_addr=(int)(ndev->board->slot_addr+KINETICS_8390_BASE);
- dev->mem_start=(int)(ndev->board->slot_addr+KINETICS_8390_MEM);
- dev->mem_end=dev->mem_start+KINETICS_MEMSIZE; /* 8K it seems */
- dev->irq = SLOT2IRQ(ndev->board->slot);
- if(ns8390_probe1(dev, 0, "kinetics", id, -1, ndev)==0)
- return 0;
- }
-
- /* We should hopefully not get here */
- printk(KERN_ERR "Probe unsuccessful.\n");
- return -ENODEV;
-
- membad:
- printk(KERN_ERR "failed at %p in %p - %p.\n", i,
- (void *)dev->mem_start, (void *)dev->mem_end);
- return -ENODEV;
-}
-
-static int __init mac8390_ethernet_addr(struct nubus_dev* ndev, unsigned char addr[6])
-{
- struct nubus_dir dir;
- struct nubus_dirent ent;
-
- /* Get the functional resource for this device */
- if (nubus_get_func_dir(ndev, &dir) == -1)
- return -1;
- if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1)
- return -1;
-
- nubus_get_rsrc_mem(addr, &ent, 6);
- return 0;
-}
-
-static int __init ns8390_probe1(struct net_device *dev, int word16, char *model_name,
- int type, int promoff, struct nubus_dev *ndev)
-{
- static u32 fwrd4_offsets[16]={
- 0, 4, 8, 12,
- 16, 20, 24, 28,
- 32, 36, 40, 44,
- 48, 52, 56, 60
- };
- static u32 back4_offsets[16]={
- 60, 56, 52, 48,
- 44, 40, 36, 32,
- 28, 24, 20, 16,
- 12, 8, 4, 0
- };
- static u32 fwrd2_offsets[16]={
- 0, 2, 4, 6,
- 8, 10, 12, 14,
- 16, 18, 20, 22,
- 24, 26, 28, 30
- };
-
- unsigned char *prom = (unsigned char*) ndev->board->slot_addr + promoff;
-
- /* Allocate dev->priv and fill in 8390 specific dev fields. */
- if (ethdev_init(dev))
- {
- printk ("%s: unable to get memory for dev->priv.\n", dev->name);
- return -ENOMEM;
- }
-
- /* OK, we are certain this is going to work. Setup the device. */
-
- ei_status.name = model_name;
- ei_status.word16 = word16;
-
- if (type==NS8390_CABLETRON) {
- /* Cabletron card puts the RX buffer before the TX buffer */
- ei_status.tx_start_page = CABLETRON_TX_START_PG;
- ei_status.rx_start_page = CABLETRON_RX_START_PG;
- ei_status.stop_page = CABLETRON_RX_STOP_PG;
- ei_status.rmem_start = dev->mem_start;
- ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
- } else {
- ei_status.tx_start_page = WD_START_PG;
- ei_status.rx_start_page = WD_START_PG + TX_PAGES;
- ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
- ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
- ei_status.rmem_end = dev->mem_end;
- }
-
- if(promoff==-1) /* Use nubus resources ? */
- {
- if(mac8390_ethernet_addr(ndev, dev->dev_addr))
- {
- printk("mac_ns8390: MAC address not in resources!\n");
- return -ENODEV;
- }
- }
- else /* Pull it off the card */
- {
- int i=0;
- int x=1;
- /* These should go in the end I hope */
- if(type==NS8390_DAYNA)
- x=2;
- if(type==NS8390_INTERLAN || type==NS8390_KINETICS)
- x=4;
- while(i<6)
- {
- dev->dev_addr[i]=*prom;
- prom+=x;
- if(i)
- printk(":");
- printk("%02X",dev->dev_addr[i++]);
- }
- }
-
- printk(KERN_INFO "%s: %s in slot %X (type %s)\n",
- dev->name, ndev->board->name, ndev->board->slot, model_name);
- printk(KERN_INFO "MAC ");
- {
- int i;
- for (i = 0; i < 6; i++) {
- printk("%2.2x", dev->dev_addr[i]);
- if (i < 5)
- printk(":");
- }
- }
- printk(" IRQ %d, shared memory at %#lx-%#lx.\n",
- dev->irq, dev->mem_start, dev->mem_end-1);
-
- switch(type)
- {
- case NS8390_DAYNA: /* Dayna card */
- case NS8390_KINETICS: /* Kinetics -- 8 bit config, but 16 bit mem */
- /* 16 bit, 4 word offsets */
- ei_status.reset_8390 = &ns8390_no_reset;
- ei_status.block_input = &dayna_block_input;
- ei_status.block_output = &dayna_block_output;
- ei_status.get_8390_hdr = &dayna_get_8390_hdr;
- ei_status.reg_offset = fwrd4_offsets;
- break;
- case NS8390_CABLETRON: /* Cabletron */
- /* 16 bit card, register map is short forward */
- ei_status.reset_8390 = &ns8390_no_reset;
- /* Ctron card won't accept 32bit values read or written to it */
- ei_status.block_input = &slow_sane_block_input;
- ei_status.block_output = &slow_sane_block_output;
- ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
- ei_status.reg_offset = fwrd2_offsets;
- break;
- case NS8390_FARALLON:
- case NS8390_APPLE: /* Apple/Asante/Farallon */
- /* 16 bit card, register map is reversed */
- ei_status.reset_8390 = &ns8390_no_reset;
- ei_status.block_input = &slow_sane_block_input;
- ei_status.block_output = &slow_sane_block_output;
- ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
- ei_status.reg_offset = back4_offsets;
- break;
- case NS8390_ASANTE:
- /* 16 bit card, register map is reversed */
- ei_status.reset_8390 = &ns8390_no_reset;
- ei_status.block_input = &sane_block_input;
- ei_status.block_output = &sane_block_output;
- ei_status.get_8390_hdr = &sane_get_8390_hdr;
- ei_status.reg_offset = back4_offsets;
- break;
- case NS8390_INTERLAN: /* Interlan */
- /* 16 bit card, map is forward */
- ei_status.reset_8390 = &interlan_reset;
- ei_status.block_input = &sane_block_input;
- ei_status.block_output = &sane_block_output;
- ei_status.get_8390_hdr = &sane_get_8390_hdr;
- ei_status.reg_offset = back4_offsets;
- break;
-#if 0 /* i think this suffered code rot. my kinetics card has much
- * different settings. -- CSA [22-May-1999] */
- case NS8390_KINETICS: /* Kinetics */
- /* 8bit card, map is forward */
- ei_status.reset_8390 = &ns8390_no_reset;
- ei_status.block_input = &sane_block_input;
- ei_status.block_output = &sane_block_output;
- ei_status.get_8390_hdr = &sane_get_8390_hdr;
- ei_status.reg_offset = back4_offsets;
- break;
-#endif
- default:
- panic("Detected a card I can't drive - whoops\n");
- }
- dev->open = &ns8390_open;
- dev->stop = &ns8390_close_card;
-
- NS8390_init(dev, 0);
-
- return 0;
-}
-
-static int ns8390_open(struct net_device *dev)
-{
- int ret;
-
- ei_open(dev);
-
- /* At least on my card (a Focus Enhancements PDS card) I start */
- /* getting interrupts right away, so the driver needs to be */
- /* completely initialized before enabling the interrupt. */
- /* - funaho@jurai.org (1999-05-17) */
-
- /* Non-slow interrupt, works around issues with the SONIC driver */
- ret = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
- if (ret) {
- printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
- return ret;
- }
- return 0;
-}
-
-static void ns8390_no_reset(struct net_device *dev)
-{
- if (ei_debug > 1)
- printk("Need to reset the NS8390 t=%lu...", jiffies);
- ei_status.txing = 0;
- if (ei_debug > 1) printk("reset not supported\n");
-}
-
-static int ns8390_close_card(struct net_device *dev)
-{
- if (ei_debug > 1)
- printk("%s: Shutting down ethercard.\n", dev->name);
- free_irq(dev->irq, dev);
- ei_close(dev);
- return 0;
-}
-
-/*
- * Interlan Specific Code Starts Here
- */
-
-static void interlan_reset(struct net_device *dev)
-{
- unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
- if (ei_debug > 1)
- printk("Need to reset the NS8390 t=%lu...", jiffies);
- ei_status.txing = 0;
- /* This write resets the card */
- target[0xC0000]=0;
- if (ei_debug > 1) printk("reset complete\n");
- return;
-}
-
-/*
- * Daynaport code (some is used by other drivers)
- */
-
-
-/* Grab the 8390 specific header. Similar to the block_input routine, but
- we don't need to be concerned with ring wrap as the header will be at
- the start of a page, so we optimize accordingly. */
-
-
-/* Block input and output are easy on shared memory ethercards, and trivial
- on the Daynaport card where there is no choice of how to do it.
- The only complications are that the ring buffer wraps.
-*/
-
-static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
-{
- volatile unsigned short *ptr;
- unsigned short *target=to;
- from<<=1; /* word, skip overhead */
- ptr=(unsigned short *)(dev->mem_start+from);
- /*
- * Leading byte?
- */
- if (from&2) {
- *((char *)target)++ = *(((char *)ptr++)-1);
- count--;
- }
- while(count>=2)
- {
- *target++=*ptr++; /* Copy and */
- ptr++; /* skip cruft */
- count-=2;
- }
- /*
- * Trailing byte ?
- */
- if(count)
- {
- /* Big endian */
- unsigned short v=*ptr;
- *((char *)target)=v>>8;
- }
-}
-
-static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
-{
- volatile unsigned short *ptr;
- const unsigned short *src=from;
- to<<=1; /* word, skip overhead */
- ptr=(unsigned short *)(dev->mem_start+to);
- /*
- * Leading byte?
- */
- if (to&2) { /* avoid a byte write (stomps on other data) */
- ptr[-1] = (ptr[-1]&0xFF00)|*((unsigned char *)src)++;
- ptr++;
- count--;
- }
- while(count>=2)
- {
- *ptr++=*src++; /* Copy and */
- ptr++; /* skip cruft */
- count-=2;
- }
- /*
- * Trailing byte ?
- */
- if(count)
- {
- /* Big endian */
- unsigned short v=*src;
- /* card doesn't like byte writes */
- *ptr=(*ptr&0x00FF)|(v&0xFF00);
- }
-}
-
-static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
-{
- unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
- dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4);
- /* Register endianism - fix here rather than 8390.c */
- hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
-}
-
-static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
-{
- unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
- unsigned long xfer_start = xfer_base+dev->mem_start;
-
- /*
- * Note the offset maths is done in card memory space which
- * is word per long onto our space.
- */
-
- if (xfer_start + count > ei_status.rmem_end)
- {
- /* We must wrap the input move. */
- int semi_count = ei_status.rmem_end - xfer_start;
- dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
- count -= semi_count;
- dayna_memcpy_fromcard(dev, skb->data + semi_count,
- ei_status.rmem_start - dev->mem_start, count);
- }
- else
- {
- dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
- }
-}
-
-static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
- int start_page)
-{
- long shmem = (start_page - WD_START_PG)<<8;
-
- dayna_memcpy_tocard(dev, shmem, buf, count);
-}
-
-/*
- * Cards with full width memory
- */
-
-
-static void sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
-{
- unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
- memcpy((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
- /* Register endianism - fix here rather than 8390.c */
- hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
-}
-
-static void sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
-{
- unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
- unsigned long xfer_start = xfer_base+dev->mem_start;
-
- if (xfer_start + count > ei_status.rmem_end)
- {
- /* We must wrap the input move. */
- int semi_count = ei_status.rmem_end - xfer_start;
- memcpy(skb->data, (char *)dev->mem_start+xfer_base, semi_count);
- count -= semi_count;
- memcpy(skb->data + semi_count,
- (char *)ei_status.rmem_start, count);
- }
- else
- {
- memcpy(skb->data, (char *)dev->mem_start+xfer_base, count);
- }
-}
-
-
-static void sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
- int start_page)
-{
- long shmem = (start_page - WD_START_PG)<<8;
-
- memcpy((char *)dev->mem_start+shmem, buf, count);
-}
-
-static void word_memcpy_tocard(void *tp, const void *fp, int count)
-{
- volatile unsigned short *to = tp;
- const unsigned short *from = fp;
-
- count++;
- count/=2;
-
- while(count--)
- *to++=*from++;
-}
-
-static void word_memcpy_fromcard(void *tp, const void *fp, int count)
-{
- unsigned short *to = tp;
- const volatile unsigned short *from = fp;
-
- count++;
- count/=2;
-
- while(count--)
- *to++=*from++;
-}
-
-static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
-{
- unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
- word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
- /* Register endianism - fix here rather than 8390.c */
- hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
-}
-
-static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
-{
- unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
- unsigned long xfer_start = xfer_base+dev->mem_start;
-
- if (xfer_start + count > ei_status.rmem_end)
- {
- /* We must wrap the input move. */
- int semi_count = ei_status.rmem_end - xfer_start;
- word_memcpy_fromcard(skb->data, (char *)dev->mem_start+xfer_base, semi_count);
- count -= semi_count;
- word_memcpy_fromcard(skb->data + semi_count,
- (char *)ei_status.rmem_start, count);
- }
- else
- {
- word_memcpy_fromcard(skb->data, (char *)dev->mem_start+xfer_base, count);
- }
-}
-
-static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
- int start_page)
-{
- long shmem = (start_page - WD_START_PG)<<8;
-
- word_memcpy_tocard((char *)dev->mem_start+shmem, buf, count);
-#if 0
- long shmem = (start_page - WD_START_PG)<<8;
- volatile unsigned short *to=(unsigned short *)(dev->mem_start+shmem);
- volatile int p;
- unsigned short *bp=(unsigned short *)buf;
-
- count=(count+1)/2;
-
- while(count--)
- {
- *to++=*bp++;
- for(p=0;p<10;p++)
- p++;
- }
-#endif
-}
-
-MODULE_LICENSE("GPL");
--- /dev/null
+/* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike)
+ Ethernet cards on Linux */
+/* Based on the former daynaport.c driver, by Alan Cox. Some code
+ taken from or inspired by skeleton.c by Donald Becker, acenic.c by
+ Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker.
+
+ This software may be used and distributed according to the terms of
+ the GNU Public License, incorporated herein by reference. */
+
+/* 2000-02-28: support added for Dayna and Kinetics cards by
+ A.G.deWijn@phys.uu.nl */
+/* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */
+/* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */
+/* 2001-05-15: support for Cabletron ported from old daynaport driver
+ * and fixed access to Sonic Sys card which masquerades as a Farallon
+ * by rayk@knightsmanor.org */
+
+#include <linux/version.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/nubus.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/hwtest.h>
+#include <asm/macints.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include "8390.h"
+
+#if (LINUX_VERSION_CODE < 0x02030e)
+#define net_device device
+#endif
+
+#define WD_START_PG 0x00 /* First page of TX buffer */
+#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
+#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
+#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */
+
+/* Unfortunately it seems we have to hardcode these for the moment */
+/* Shouldn't the card know about this? Does anyone know where to read it off the card? Do we trust the data provided by the card? */
+
+#define DAYNA_8390_BASE 0x80000
+#define DAYNA_8390_MEM 0x00000
+
+#define KINETICS_8390_BASE 0x80000
+#define KINETICS_8390_MEM 0x00000
+
+#define CABLETRON_8390_BASE 0x90000
+#define CABLETRON_8390_MEM 0x00000
+
+enum mac8390_type {
+ MAC8390_NONE = -1,
+ MAC8390_APPLE,
+ MAC8390_ASANTE,
+ MAC8390_FARALLON, /* Apple, Asante, and Farallon are all compatible */
+ MAC8390_CABLETRON,
+ MAC8390_DAYNA,
+ MAC8390_INTERLAN,
+ MAC8390_KINETICS,
+ MAC8390_FOCUS,
+ MAC8390_SONICSYS,
+ MAC8390_DAYNA2,
+ MAC8390_DAYNA3,
+};
+
+static const char * cardname[] = {
+ "apple",
+ "asante",
+ "farallon",
+ "cabletron",
+ "dayna",
+ "interlan",
+ "kinetics",
+ "focus",
+ "sonic systems",
+ "dayna2",
+ "dayna_lc",
+};
+
+static int word16[] = {
+ 1, /* apple */
+ 1, /* asante */
+ 1, /* farallon */
+ 1, /* cabletron */
+ 0, /* dayna */
+ 1, /* interlan */
+ 0, /* kinetics */
+ 1, /* focus (??) */
+ 1, /* sonic systems */
+ 1, /* dayna2 */
+ 1, /* dayna-lc */
+};
+
+/* on which cards do we use NuBus resources? */
+static int useresources[] = {
+ 1, /* apple */
+ 1, /* asante */
+ 1, /* farallon */
+ 0, /* cabletron */
+ 0, /* dayna */
+ 0, /* interlan */
+ 0, /* kinetics */
+ 0, /* focus (??) */
+ 1, /* sonic systems */
+ 1, /* dayna2 */
+ 1, /* dayna-lc */
+};
+
+static const char __initdata * version =
+ "mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
+
+extern int mac8390_probe(struct net_device * dev);
+extern enum mac8390_type mac8390_ident(struct nubus_dev * dev);
+extern int mac8390_memsize(unsigned long membase);
+extern int mac8390_memtest(struct net_device * dev);
+extern int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
+ enum mac8390_type type);
+
+static int mac8390_open(struct net_device * dev);
+static int mac8390_close(struct net_device * dev);
+static void mac8390_no_reset(struct net_device *dev);
+
+/* Sane (32-bit chunk memory read/write) - Apple/Asante/Farallon do this*/
+static void sane_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr, int ring_page);
+static void sane_block_input(struct net_device * dev, int count,
+ struct sk_buff * skb, int ring_offset);
+static void sane_block_output(struct net_device * dev, int count,
+ const unsigned char * buf, const int start_page);
+
+/* dayna_memcpy to and from card */
+static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
+ int from, int count);
+static void dayna_memcpy_tocard(struct net_device *dev, int to,
+ const void *from, int count);
+
+/* Dayna - Dayna/Kinetics use this */
+static void dayna_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr, int ring_page);
+static void dayna_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset);
+static void dayna_block_output(struct net_device *dev, int count,
+ const unsigned char *buf, int start_page);
+
+#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
+#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
+
+/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
+static void slow_sane_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr, int ring_page);
+static void slow_sane_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset);
+static void slow_sane_block_output(struct net_device *dev, int count,
+ const unsigned char *buf, int start_page);
+static void word_memcpy_tocard(void *tp, const void *fp, int count);
+static void word_memcpy_fromcard(void *tp, const void *fp, int count);
+
+enum mac8390_type __init mac8390_ident(struct nubus_dev * dev)
+{
+ if (dev->dr_sw == NUBUS_DRSW_ASANTE)
+ return MAC8390_ASANTE;
+ if (dev->dr_sw == NUBUS_DRSW_FARALLON)
+ return MAC8390_FARALLON;
+ if (dev->dr_sw == NUBUS_DRSW_KINETICS)
+ return MAC8390_KINETICS;
+ if (dev->dr_sw == NUBUS_DRSW_DAYNA)
+ return MAC8390_DAYNA;
+ if (dev->dr_sw == NUBUS_DRSW_DAYNA2)
+ return MAC8390_DAYNA2;
+ if (dev->dr_sw == NUBUS_DRSW_DAYNA_LC)
+ return MAC8390_DAYNA3;
+ if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
+ return MAC8390_CABLETRON;
+ return MAC8390_NONE;
+}
+
+int __init mac8390_memsize(unsigned long membase)
+{
+ unsigned long flags;
+ int i, j;
+
+ save_flags(flags); cli();
+ /* Check up to 32K in 4K increments */
+ for (i = 0; i < 8; i++) {
+ volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
+
+ /* Unwriteable - we have a fully decoded card and the
+ RAM end located */
+ if (hwreg_present(m) == 0)
+ break;
+
+ /* write a distinctive byte */
+ *m = 0xA5A0 | i;
+ /* check that we read back what we wrote */
+ if (*m != (0xA5A0 | i))
+ break;
+
+ /* check for partial decode and wrap */
+ for (j = 0; j < i; j++) {
+ volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
+ if (*p != (0xA5A0 | j))
+ break;
+ }
+ }
+ restore_flags(flags);
+ /* in any case, we stopped once we tried one block too many,
+ or once we reached 32K */
+ return i * 0x1000;
+}
+
+static int probed __initdata = 0;
+
+int __init mac8390_probe(struct net_device * dev)
+{
+ volatile unsigned short *i;
+ int boards_found = 0;
+ int version_disp = 0;
+ struct nubus_dev * ndev = NULL;
+
+ struct nubus_dir dir;
+ struct nubus_dirent ent;
+ int offset;
+
+ enum mac8390_type cardtype;
+
+ if (probed)
+ return -ENODEV;
+ probed++;
+
+ /* probably should check for Nubus instead */
+
+ if (!MACH_IS_MAC)
+ return -ENODEV;
+
+ while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
+
+ dev = NULL;
+
+ if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
+ continue;
+
+ dev = init_etherdev(dev, 0);
+ if (dev == NULL) {
+ printk(KERN_ERR "Unable to allocate etherdev"
+ "structure!\n");
+ return -ENOMEM;
+ }
+
+ if (version_disp == 0) {
+ version_disp = 1;
+ printk(version);
+ }
+
+ dev->irq = SLOT2IRQ(ndev->board->slot);
+ /* This is getting to be a habit */
+ dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
+
+ /* Get some Nubus info - we will trust the card's idea
+ of where its memory and registers are. */
+
+ if (nubus_get_func_dir(ndev, &dir) == -1) {
+ printk(KERN_ERR "%s: Unable to get Nubus functional"
+ " directory for slot %X!\n",
+ dev->name, ndev->board->slot);
+ continue;
+ }
+
+ /* Get the MAC address */
+ if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
+ printk(KERN_INFO "%s: Couldn't get MAC address!\n",
+ dev->name);
+ continue;
+ } else {
+ nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
+ /* Some Sonic Sys cards masquerade as Farallon */
+ if (cardtype == MAC8390_FARALLON &&
+ dev->dev_addr[0] == 0x0 &&
+ dev->dev_addr[1] == 0x40 &&
+ dev->dev_addr[2] == 0x10) {
+ /* This is really Sonic Sys card */
+ cardtype = MAC8390_SONICSYS;
+ }
+ }
+
+ if (useresources[cardtype] == 1) {
+ nubus_rewinddir(&dir);
+ if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
+ printk(KERN_ERR "%s: Memory offset resource"
+ " for slot %X not found!\n",
+ dev->name, ndev->board->slot);
+ continue;
+ }
+ nubus_get_rsrc_mem(&offset, &ent, 4);
+ dev->mem_start = dev->base_addr + offset;
+ /* yes, this is how the Apple driver does it */
+ dev->base_addr = dev->mem_start + 0x10000;
+ nubus_rewinddir(&dir);
+ if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
+ printk(KERN_INFO "%s: Memory length resource"
+ " for slot %X not found"
+ ", probing\n",
+ dev->name, ndev->board->slot);
+ offset = mac8390_memsize(dev->mem_start);
+ } else {
+ nubus_get_rsrc_mem(&offset, &ent, 4);
+ }
+ dev->mem_end = dev->mem_start + offset;
+ } else {
+ switch (cardtype) {
+ case MAC8390_KINETICS:
+ case MAC8390_DAYNA: /* it's the same */
+ dev->base_addr =
+ (int)(ndev->board->slot_addr +
+ DAYNA_8390_BASE);
+ dev->mem_start =
+ (int)(ndev->board->slot_addr +
+ DAYNA_8390_MEM);
+ dev->mem_end =
+ dev->mem_start +
+ mac8390_memsize(dev->mem_start);
+ break;
+ case MAC8390_CABLETRON:
+ dev->base_addr =
+ (int)(ndev->board->slot_addr +
+ CABLETRON_8390_BASE);
+ dev->mem_start =
+ (int)(ndev->board->slot_addr +
+ CABLETRON_8390_MEM);
+ /* The base address is unreadable if 0x00
+ * has been written to the command register
+ * Reset the chip by writing E8390_NODMA +
+ * E8390_PAGE0 + E8390_STOP just to be
+ * sure
+ */
+ i = (void *)dev->base_addr;
+ *i = 0x21;
+ dev->mem_end =
+ dev->mem_start +
+ mac8390_memsize(dev->mem_start);
+ break;
+
+ default:
+ printk(KERN_ERR "Card type %s is"
+ " unsupported, sorry\n",
+ cardname[cardtype]);
+ return -ENODEV;
+ }
+ }
+
+ /* Do the nasty 8390 stuff */
+ if (mac8390_initdev(dev, ndev, cardtype))
+ continue;
+ boards_found++;
+ }
+
+ /* We're outta here */
+ if (boards_found > 0)
+ return 0;
+ else
+ return -ENODEV;
+}
+
+#ifdef MODULE
+#if LINUX_VERSION_CODE > 0x20118
+MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
+MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
+MODUEL_LICENSE("GPL");
+#endif
+
+int init_module(void)
+{
+ if (mac8390_probe(NULL)) {
+ printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
+ return -ENODEV;
+ }
+ lock_8390_module();
+ return 0;
+}
+
+void cleanup_module(void)
+{
+ /* FIXME: should probably keep track of net_device structs
+ somewhere and unregister them here? */
+ unlock_8390_module();
+}
+
+#endif /* MODULE */
+
+int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
+ enum mac8390_type type)
+{
+ static u32 fwrd4_offsets[16]={
+ 0, 4, 8, 12,
+ 16, 20, 24, 28,
+ 32, 36, 40, 44,
+ 48, 52, 56, 60
+ };
+ static u32 back4_offsets[16]={
+ 60, 56, 52, 48,
+ 44, 40, 36, 32,
+ 28, 24, 20, 16,
+ 12, 8, 4, 0
+ };
+ static u32 fwrd2_offsets[16]={
+ 0, 2, 4, 6,
+ 8, 10, 12, 14,
+ 16, 18, 20, 22,
+ 24, 26, 28, 30
+ };
+
+ int access_bitmode;
+
+ /* 8390 specific init for dev - allocates dev->priv */
+ if (ethdev_init(dev)) {
+ printk(KERN_ERR "%s: Unable to allocate memory for dev->priv!\n", dev->name);
+ return -ENOMEM;
+ }
+
+ /* Now fill in our stuff */
+ dev->open = &mac8390_open;
+ dev->stop = &mac8390_close;
+
+ /* GAR, ei_status is actually a macro even though it looks global */
+ ei_status.name = cardname[type];
+ ei_status.word16 = word16[type];
+
+ /* Cabletron's TX/RX buffers are backwards */
+ if (type == MAC8390_CABLETRON) {
+ ei_status.tx_start_page = CABLETRON_TX_START_PG;
+ ei_status.rx_start_page = CABLETRON_RX_START_PG;
+ ei_status.stop_page = CABLETRON_RX_STOP_PG;
+ dev->rmem_start = dev->mem_start;
+ dev->rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
+ } else {
+ ei_status.tx_start_page = WD_START_PG;
+ ei_status.rx_start_page = WD_START_PG + TX_PAGES;
+ ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
+ dev->rmem_start = dev->mem_start + TX_PAGES*256;
+ dev->rmem_end = dev->mem_end;
+ }
+
+ /* Fill in model-specific information and functions */
+ switch(type) {
+ case MAC8390_SONICSYS:
+ /* 16 bit card, register map is reversed */
+ ei_status.reset_8390 = &mac8390_no_reset;
+ ei_status.block_input = &slow_sane_block_input;
+ ei_status.block_output = &slow_sane_block_output;
+ ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
+ ei_status.reg_offset = back4_offsets;
+ access_bitmode = 0;
+ break;
+ case MAC8390_FARALLON:
+ case MAC8390_APPLE:
+ case MAC8390_ASANTE:
+ case MAC8390_DAYNA2:
+ case MAC8390_DAYNA3:
+ /* 32 bit card, register map is reversed */
+ /* sane */
+ ei_status.reset_8390 = &mac8390_no_reset;
+ ei_status.block_input = &sane_block_input;
+ ei_status.block_output = &sane_block_output;
+ ei_status.get_8390_hdr = &sane_get_8390_hdr;
+ ei_status.reg_offset = back4_offsets;
+ access_bitmode = 1;
+ break;
+ case MAC8390_CABLETRON:
+ /* 16 bit card, register map is short forward */
+ ei_status.reset_8390 = &mac8390_no_reset;
+ ei_status.block_input = &slow_sane_block_input;
+ ei_status.block_output = &slow_sane_block_output;
+ ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
+ ei_status.reg_offset = fwrd2_offsets;
+ access_bitmode = 0;
+ break;
+ case MAC8390_DAYNA:
+ case MAC8390_KINETICS:
+ /* 16 bit memory */
+ /* dayna and similar */
+ ei_status.reset_8390 = &mac8390_no_reset;
+ ei_status.block_input = &dayna_block_input;
+ ei_status.block_output = &dayna_block_output;
+ ei_status.get_8390_hdr = &dayna_get_8390_hdr;
+ ei_status.reg_offset = fwrd4_offsets;
+ access_bitmode = 0;
+ break;
+ default:
+ printk(KERN_ERR "Card type %s is unsupported, sorry\n", cardname[type]);
+ return -ENODEV;
+ }
+
+ NS8390_init(dev, 0);
+
+ /* Good, done, now spit out some messages */
+ printk(KERN_INFO "%s: %s in slot %X (type %s)\n",
+ dev->name, ndev->board->name, ndev->board->slot, cardname[type]);
+ printk(KERN_INFO "MAC ");
+ {
+ int i;
+ for (i = 0; i < 6; i++) {
+ printk("%2.2x", dev->dev_addr[i]);
+ if (i < 5)
+ printk(":");
+ }
+ }
+ printk(" IRQ %d, shared memory at %#lx-%#lx, %d-bit access.\n",
+ dev->irq, dev->mem_start, dev->mem_end-1,
+ access_bitmode?32:16);
+ return 0;
+}
+
+static int mac8390_open(struct net_device *dev)
+{
+ ei_open(dev);
+ if (request_irq(dev->irq, ei_interrupt, 0, "8390 Ethernet", dev)) {
+ printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
+ return -EAGAIN;
+ }
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+static int mac8390_close(struct net_device *dev)
+{
+ free_irq(dev->irq, dev);
+ ei_close(dev);
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static void mac8390_no_reset(struct net_device *dev)
+{
+ ei_status.txing = 0;
+ if (ei_debug > 1)
+ printk("reset not supported\n");
+ return;
+}
+
+/* dayna_memcpy_fromio/dayna_memcpy_toio */
+/* directly from daynaport.c by Alan Cox */
+static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
+{
+ volatile unsigned short *ptr;
+ unsigned short *target=to;
+ from<<=1; /* word, skip overhead */
+ ptr=(unsigned short *)(dev->mem_start+from);
+ /* Leading byte? */
+ if (from&2) {
+ *((char *)target)++ = *(((char *)ptr++)-1);
+ count--;
+ }
+ while(count>=2)
+ {
+ *target++=*ptr++; /* Copy and */
+ ptr++; /* skip cruft */
+ count-=2;
+ }
+ /* Trailing byte? */
+ if(count)
+ {
+ /* Big endian */
+ unsigned short v=*ptr;
+ *((char *)target)=v>>8;
+ }
+}
+
+static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
+{
+ volatile unsigned short *ptr;
+ const unsigned short *src=from;
+ to<<=1; /* word, skip overhead */
+ ptr=(unsigned short *)(dev->mem_start+to);
+ /* Leading byte? */
+ if (to&2) { /* avoid a byte write (stomps on other data) */
+ ptr[-1] = (ptr[-1]&0xFF00)|*((unsigned char *)src)++;
+ ptr++;
+ count--;
+ }
+ while(count>=2)
+ {
+ *ptr++=*src++; /* Copy and */
+ ptr++; /* skip cruft */
+ count-=2;
+ }
+ /* Trailing byte? */
+ if(count)
+ {
+ /* Big endian */
+ unsigned short v=*src;
+ /* card doesn't like byte writes */
+ *ptr=(*ptr&0x00FF)|(v&0xFF00);
+ }
+}
+
+/* sane block input/output */
+static void sane_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr, int ring_page)
+{
+ unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
+ memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
+ /* Fix endianness */
+ hdr->count = swab16(hdr->count);
+}
+
+static void sane_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset)
+{
+ unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
+ unsigned long xfer_start = xfer_base + dev->mem_start;
+
+ if (xfer_start + count > dev->rmem_end) {
+ /* We must wrap the input move. */
+ int semi_count = dev->rmem_end - xfer_start;
+ memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
+ count -= semi_count;
+ memcpy_toio(skb->data + semi_count, (char *)dev->rmem_start, count);
+ } else {
+ memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
+ }
+}
+
+static void sane_block_output(struct net_device *dev, int count,
+ const unsigned char *buf, int start_page)
+{
+ long shmem = (start_page - WD_START_PG)<<8;
+
+ memcpy_toio((char *)dev->mem_start + shmem, buf, count);
+}
+
+/* dayna block input/output */
+static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+{
+ unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
+
+ dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4);
+ /* Fix endianness */
+ hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
+}
+
+static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
+{
+ unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
+ unsigned long xfer_start = xfer_base+dev->mem_start;
+
+ /* Note the offset math is done in card memory space which is word
+ per long onto our space. */
+
+ if (xfer_start + count > dev->rmem_end)
+ {
+ /* We must wrap the input move. */
+ int semi_count = dev->rmem_end - xfer_start;
+ dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
+ count -= semi_count;
+ dayna_memcpy_fromcard(dev, skb->data + semi_count,
+ dev->rmem_start - dev->mem_start, count);
+ }
+ else
+ {
+ dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
+ }
+}
+
+static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
+ int start_page)
+{
+ long shmem = (start_page - WD_START_PG)<<8;
+
+ dayna_memcpy_tocard(dev, shmem, buf, count);
+}
+
+/* Cabletron block I/O */
+static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
+ int ring_page)
+{
+ unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
+ word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
+ /* Register endianism - fix here rather than 8390.c */
+ hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
+}
+
+static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
+ int ring_offset)
+{
+ unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
+ unsigned long xfer_start = xfer_base+dev->mem_start;
+
+ if (xfer_start + count > dev->rmem_end)
+ {
+ /* We must wrap the input move. */
+ int semi_count = dev->rmem_end - xfer_start;
+ word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
+ xfer_base, semi_count);
+ count -= semi_count;
+ word_memcpy_fromcard(skb->data + semi_count,
+ (char *)dev->rmem_start, count);
+ }
+ else
+ {
+ word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
+ xfer_base, count);
+ }
+}
+
+static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
+ int start_page)
+{
+ long shmem = (start_page - WD_START_PG)<<8;
+
+ word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
+}
+
+static void word_memcpy_tocard(void *tp, const void *fp, int count)
+{
+ volatile unsigned short *to = tp;
+ const unsigned short *from = fp;
+
+ count++;
+ count/=2;
+
+ while(count--)
+ *to++=*from++;
+}
+
+static void word_memcpy_fromcard(void *tp, const void *fp, int count)
+{
+ unsigned short *to = tp;
+ const volatile unsigned short *from = fp;
+
+ count++;
+ count/=2;
+
+ while(count--)
+ *to++=*from++;
+}
+
+
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