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![Adrian Bunk](/assets/img/avatar_default.png)
This patch makes the following needlessly global functions static: - mac8390_ident() - mac8390_testio() - mac8390_memsize() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
860 lines
23 KiB
C
860 lines
23 KiB
C
/* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike)
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Ethernet cards on Linux */
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/* Based on the former daynaport.c driver, by Alan Cox. Some code
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taken from or inspired by skeleton.c by Donald Becker, acenic.c by
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Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker.
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This software may be used and distributed according to the terms of
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the GNU Public License, incorporated herein by reference. */
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/* 2000-02-28: support added for Dayna and Kinetics cards by
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A.G.deWijn@phys.uu.nl */
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/* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */
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/* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */
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/* 2001-05-15: support for Cabletron ported from old daynaport driver
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* and fixed access to Sonic Sys card which masquerades as a Farallon
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* by rayk@knightsmanor.org */
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/* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
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/* 2003-12-26: Make sure Asante cards always work. */
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/nubus.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/bitops.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <asm/hwtest.h>
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#include <asm/macints.h>
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static char version[] =
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"mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
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#define EI_SHIFT(x) (ei_local->reg_offset[x])
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#define ei_inb(port) in_8(port)
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#define ei_outb(val,port) out_8(port,val)
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#define ei_inb_p(port) in_8(port)
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#define ei_outb_p(val,port) out_8(port,val)
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#include "lib8390.c"
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#define WD_START_PG 0x00 /* First page of TX buffer */
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#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
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#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
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#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */
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/* Unfortunately it seems we have to hardcode these for the moment */
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/* 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? */
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#define DAYNA_8390_BASE 0x80000
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#define DAYNA_8390_MEM 0x00000
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#define CABLETRON_8390_BASE 0x90000
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#define CABLETRON_8390_MEM 0x00000
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#define INTERLAN_8390_BASE 0xE0000
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#define INTERLAN_8390_MEM 0xD0000
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enum mac8390_type {
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MAC8390_NONE = -1,
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MAC8390_APPLE,
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MAC8390_ASANTE,
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MAC8390_FARALLON,
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MAC8390_CABLETRON,
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MAC8390_DAYNA,
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MAC8390_INTERLAN,
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MAC8390_KINETICS,
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};
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static const char * cardname[] = {
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"apple",
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"asante",
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"farallon",
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"cabletron",
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"dayna",
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"interlan",
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"kinetics",
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};
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static int word16[] = {
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1, /* apple */
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1, /* asante */
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1, /* farallon */
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1, /* cabletron */
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0, /* dayna */
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1, /* interlan */
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0, /* kinetics */
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};
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/* on which cards do we use NuBus resources? */
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static int useresources[] = {
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1, /* apple */
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1, /* asante */
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1, /* farallon */
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0, /* cabletron */
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0, /* dayna */
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0, /* interlan */
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0, /* kinetics */
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};
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enum mac8390_access {
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ACCESS_UNKNOWN = 0,
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ACCESS_32,
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ACCESS_16,
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};
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extern int mac8390_memtest(struct net_device * dev);
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static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
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enum mac8390_type type);
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static int mac8390_open(struct net_device * dev);
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static int mac8390_close(struct net_device * dev);
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static void mac8390_no_reset(struct net_device *dev);
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static void interlan_reset(struct net_device *dev);
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/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
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static void sane_get_8390_hdr(struct net_device *dev,
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struct e8390_pkt_hdr *hdr, int ring_page);
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static void sane_block_input(struct net_device * dev, int count,
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struct sk_buff * skb, int ring_offset);
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static void sane_block_output(struct net_device * dev, int count,
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const unsigned char * buf, const int start_page);
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/* dayna_memcpy to and from card */
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static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
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int from, int count);
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static void dayna_memcpy_tocard(struct net_device *dev, int to,
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const void *from, int count);
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/* Dayna - Dayna/Kinetics use this */
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static void dayna_get_8390_hdr(struct net_device *dev,
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struct e8390_pkt_hdr *hdr, int ring_page);
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static void dayna_block_input(struct net_device *dev, int count,
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struct sk_buff *skb, int ring_offset);
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static void dayna_block_output(struct net_device *dev, int count,
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const unsigned char *buf, int start_page);
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#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
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#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
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/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
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static void slow_sane_get_8390_hdr(struct net_device *dev,
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struct e8390_pkt_hdr *hdr, int ring_page);
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static void slow_sane_block_input(struct net_device *dev, int count,
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struct sk_buff *skb, int ring_offset);
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static void slow_sane_block_output(struct net_device *dev, int count,
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const unsigned char *buf, int start_page);
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static void word_memcpy_tocard(void *tp, const void *fp, int count);
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static void word_memcpy_fromcard(void *tp, const void *fp, int count);
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static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
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{
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switch (dev->dr_sw) {
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case NUBUS_DRSW_3COM:
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switch (dev->dr_hw) {
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case NUBUS_DRHW_APPLE_SONIC_NB:
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case NUBUS_DRHW_APPLE_SONIC_LC:
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case NUBUS_DRHW_SONNET:
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return MAC8390_NONE;
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break;
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default:
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return MAC8390_APPLE;
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break;
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}
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break;
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case NUBUS_DRSW_APPLE:
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switch (dev->dr_hw) {
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case NUBUS_DRHW_ASANTE_LC:
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return MAC8390_NONE;
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break;
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case NUBUS_DRHW_CABLETRON:
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return MAC8390_CABLETRON;
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break;
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default:
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return MAC8390_APPLE;
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break;
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}
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break;
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case NUBUS_DRSW_ASANTE:
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return MAC8390_ASANTE;
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break;
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case NUBUS_DRSW_TECHWORKS:
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case NUBUS_DRSW_DAYNA2:
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case NUBUS_DRSW_DAYNA_LC:
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if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
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return MAC8390_CABLETRON;
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else
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return MAC8390_APPLE;
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break;
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case NUBUS_DRSW_FARALLON:
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return MAC8390_FARALLON;
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break;
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case NUBUS_DRSW_KINETICS:
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switch (dev->dr_hw) {
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case NUBUS_DRHW_INTERLAN:
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return MAC8390_INTERLAN;
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break;
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default:
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return MAC8390_KINETICS;
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break;
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}
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break;
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case NUBUS_DRSW_DAYNA:
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// These correspond to Dayna Sonic cards
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// which use the macsonic driver
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if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
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dev->dr_hw == NUBUS_DRHW_INTERLAN )
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return MAC8390_NONE;
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else
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return MAC8390_DAYNA;
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break;
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}
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return MAC8390_NONE;
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}
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static enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
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{
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unsigned long outdata = 0xA5A0B5B0;
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unsigned long indata = 0x00000000;
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/* Try writing 32 bits */
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memcpy((char *)membase, (char *)&outdata, 4);
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/* Now compare them */
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if (memcmp((char *)&outdata, (char *)membase, 4) == 0)
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return ACCESS_32;
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/* Write 16 bit output */
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word_memcpy_tocard((char *)membase, (char *)&outdata, 4);
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/* Now read it back */
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word_memcpy_fromcard((char *)&indata, (char *)membase, 4);
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if (outdata == indata)
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return ACCESS_16;
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return ACCESS_UNKNOWN;
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}
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static int __init mac8390_memsize(unsigned long membase)
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{
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unsigned long flags;
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int i, j;
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local_irq_save(flags);
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/* Check up to 32K in 4K increments */
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for (i = 0; i < 8; i++) {
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volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
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/* Unwriteable - we have a fully decoded card and the
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RAM end located */
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if (hwreg_present(m) == 0)
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break;
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/* write a distinctive byte */
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*m = 0xA5A0 | i;
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/* check that we read back what we wrote */
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if (*m != (0xA5A0 | i))
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break;
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/* check for partial decode and wrap */
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for (j = 0; j < i; j++) {
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volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
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if (*p != (0xA5A0 | j))
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break;
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}
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}
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local_irq_restore(flags);
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/* in any case, we stopped once we tried one block too many,
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or once we reached 32K */
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return i * 0x1000;
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}
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struct net_device * __init mac8390_probe(int unit)
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{
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struct net_device *dev;
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volatile unsigned short *i;
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int version_disp = 0;
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struct nubus_dev * ndev = NULL;
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int err = -ENODEV;
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struct nubus_dir dir;
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struct nubus_dirent ent;
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int offset;
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static unsigned int slots;
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enum mac8390_type cardtype;
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/* probably should check for Nubus instead */
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if (!MACH_IS_MAC)
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return ERR_PTR(-ENODEV);
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dev = ____alloc_ei_netdev(0);
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if (!dev)
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return ERR_PTR(-ENOMEM);
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if (unit >= 0)
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sprintf(dev->name, "eth%d", unit);
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while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
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/* Have we seen it already? */
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if (slots & (1<<ndev->board->slot))
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continue;
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slots |= 1<<ndev->board->slot;
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if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
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continue;
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if (version_disp == 0) {
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version_disp = 1;
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printk(version);
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}
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dev->irq = SLOT2IRQ(ndev->board->slot);
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/* This is getting to be a habit */
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dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
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/* Get some Nubus info - we will trust the card's idea
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of where its memory and registers are. */
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if (nubus_get_func_dir(ndev, &dir) == -1) {
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printk(KERN_ERR "%s: Unable to get Nubus functional"
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" directory for slot %X!\n",
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dev->name, ndev->board->slot);
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continue;
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}
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/* Get the MAC address */
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if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
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printk(KERN_INFO "%s: Couldn't get MAC address!\n",
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dev->name);
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continue;
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} else {
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nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
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}
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if (useresources[cardtype] == 1) {
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nubus_rewinddir(&dir);
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
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printk(KERN_ERR "%s: Memory offset resource"
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" for slot %X not found!\n",
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dev->name, ndev->board->slot);
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continue;
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}
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nubus_get_rsrc_mem(&offset, &ent, 4);
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dev->mem_start = dev->base_addr + offset;
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/* yes, this is how the Apple driver does it */
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dev->base_addr = dev->mem_start + 0x10000;
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nubus_rewinddir(&dir);
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
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printk(KERN_INFO "%s: Memory length resource"
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" for slot %X not found"
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", probing\n",
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dev->name, ndev->board->slot);
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offset = mac8390_memsize(dev->mem_start);
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} else {
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nubus_get_rsrc_mem(&offset, &ent, 4);
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}
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dev->mem_end = dev->mem_start + offset;
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} else {
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switch (cardtype) {
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case MAC8390_KINETICS:
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case MAC8390_DAYNA: /* it's the same */
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dev->base_addr =
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(int)(ndev->board->slot_addr +
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DAYNA_8390_BASE);
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dev->mem_start =
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(int)(ndev->board->slot_addr +
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DAYNA_8390_MEM);
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dev->mem_end =
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dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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case MAC8390_INTERLAN:
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dev->base_addr =
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(int)(ndev->board->slot_addr +
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INTERLAN_8390_BASE);
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dev->mem_start =
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(int)(ndev->board->slot_addr +
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INTERLAN_8390_MEM);
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dev->mem_end =
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dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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case MAC8390_CABLETRON:
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dev->base_addr =
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(int)(ndev->board->slot_addr +
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CABLETRON_8390_BASE);
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dev->mem_start =
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(int)(ndev->board->slot_addr +
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CABLETRON_8390_MEM);
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/* The base address is unreadable if 0x00
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* has been written to the command register
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* Reset the chip by writing E8390_NODMA +
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* E8390_PAGE0 + E8390_STOP just to be
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* sure
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*/
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i = (void *)dev->base_addr;
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*i = 0x21;
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dev->mem_end =
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dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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default:
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printk(KERN_ERR "Card type %s is"
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" unsupported, sorry\n",
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ndev->board->name);
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continue;
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}
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}
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/* Do the nasty 8390 stuff */
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if (!mac8390_initdev(dev, ndev, cardtype))
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break;
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}
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if (!ndev)
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goto out;
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err = register_netdev(dev);
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if (err)
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goto out;
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return dev;
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out:
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free_netdev(dev);
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return ERR_PTR(err);
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}
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#ifdef MODULE
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MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
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MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
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MODULE_LICENSE("GPL");
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/* overkill, of course */
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static struct net_device *dev_mac8390[15];
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int init_module(void)
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{
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int i;
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for (i = 0; i < 15; i++) {
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struct net_device *dev = mac8390_probe(-1);
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if (IS_ERR(dev))
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break;
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dev_mac890[i] = dev;
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}
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if (!i) {
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printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
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return -ENODEV;
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}
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return 0;
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}
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void cleanup_module(void)
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{
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int i;
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for (i = 0; i < 15; i++) {
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struct net_device *dev = dev_mac890[i];
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if (dev) {
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unregister_netdev(dev);
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free_netdev(dev);
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}
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}
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}
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#endif /* MODULE */
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static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
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enum mac8390_type type)
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{
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static u32 fwrd4_offsets[16]={
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0, 4, 8, 12,
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16, 20, 24, 28,
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32, 36, 40, 44,
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48, 52, 56, 60
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};
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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 = 0;
|
|
|
|
/* Now fill in our stuff */
|
|
dev->open = &mac8390_open;
|
|
dev->stop = &mac8390_close;
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
dev->poll_controller = __ei_poll;
|
|
#endif
|
|
|
|
/* 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;
|
|
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;
|
|
}
|
|
|
|
/* Fill in model-specific information and functions */
|
|
switch(type) {
|
|
case MAC8390_FARALLON:
|
|
case MAC8390_APPLE:
|
|
switch(mac8390_testio(dev->mem_start)) {
|
|
case ACCESS_UNKNOWN:
|
|
printk("Don't know how to access card memory!\n");
|
|
return -ENODEV;
|
|
break;
|
|
|
|
case ACCESS_16:
|
|
/* 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;
|
|
break;
|
|
|
|
case ACCESS_32:
|
|
/* 32 bit card, register map is reversed */
|
|
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;
|
|
}
|
|
break;
|
|
|
|
case MAC8390_ASANTE:
|
|
/* Some Asante cards pass the 32 bit test
|
|
* but overwrite system memory when run at 32 bit.
|
|
* so we run them all at 16 bit.
|
|
*/
|
|
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;
|
|
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;
|
|
break;
|
|
|
|
case MAC8390_DAYNA:
|
|
case MAC8390_KINETICS:
|
|
/* 16 bit memory, register map is forward */
|
|
/* 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;
|
|
break;
|
|
|
|
case MAC8390_INTERLAN:
|
|
/* 16 bit memory, register map is forward */
|
|
ei_status.reset_8390 = &interlan_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 = fwrd4_offsets;
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_ERR "Card type %s is unsupported, sorry\n", ndev->board->name);
|
|
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, %d KB shared memory at %#lx, %d-bit access.\n",
|
|
dev->irq, (int)((dev->mem_end - dev->mem_start)/0x1000) * 4,
|
|
dev->mem_start, 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;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mac8390_close(struct net_device *dev)
|
|
{
|
|
free_irq(dev->irq, dev);
|
|
__ei_close(dev);
|
|
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;
|
|
}
|
|
|
|
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;
|
|
target[0xC0000] = 0;
|
|
if (ei_debug > 1)
|
|
printk("reset complete\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 char *ptr;
|
|
unsigned char *target=to;
|
|
from<<=1; /* word, skip overhead */
|
|
ptr=(unsigned char *)(dev->mem_start+from);
|
|
/* Leading byte? */
|
|
if (from&2) {
|
|
*target++ = ptr[-1];
|
|
ptr += 2;
|
|
count--;
|
|
}
|
|
while(count>=2)
|
|
{
|
|
*(unsigned short *)target = *(unsigned short volatile *)ptr;
|
|
ptr += 4; /* skip cruft */
|
|
target += 2;
|
|
count-=2;
|
|
}
|
|
/* Trailing byte? */
|
|
if(count)
|
|
*target = *ptr;
|
|
}
|
|
|
|
static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
|
|
{
|
|
volatile unsigned short *ptr;
|
|
const unsigned char *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)|*src++;
|
|
ptr++;
|
|
count--;
|
|
}
|
|
while(count>=2)
|
|
{
|
|
*ptr++=*(unsigned short *)src; /* Copy and */
|
|
ptr++; /* skip cruft */
|
|
src += 2;
|
|
count-=2;
|
|
}
|
|
/* Trailing byte? */
|
|
if(count)
|
|
{
|
|
/* card doesn't like byte writes */
|
|
*ptr=(*ptr&0x00FF)|(*src << 8);
|
|
}
|
|
}
|
|
|
|
/* 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 > ei_status.rmem_end) {
|
|
/* We must wrap the input move. */
|
|
int semi_count = ei_status.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 *)ei_status.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 > 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);
|
|
}
|
|
|
|
/* 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 > 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);
|
|
}
|
|
|
|
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++;
|
|
}
|
|
|
|
|