diff options
Diffstat (limited to 'drivers/net/mac8390.c')
| -rw-r--r-- | drivers/net/mac8390.c | 874 |
1 files changed, 0 insertions, 874 deletions
diff --git a/drivers/net/mac8390.c b/drivers/net/mac8390.c deleted file mode 100644 index f84f5e6ededb..000000000000 --- a/drivers/net/mac8390.c +++ /dev/null @@ -1,874 +0,0 @@ -/* 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 */ -/* 2002-12-30: Try to support more cards, some clues from NetBSD driver */ -/* 2003-12-26: Make sure Asante cards always work. */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/kernel.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/string.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/bitops.h> -#include <linux/io.h> - -#include <asm/system.h> -#include <asm/dma.h> -#include <asm/hwtest.h> -#include <asm/macints.h> - -static char version[] = - "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; - -#define EI_SHIFT(x) (ei_local->reg_offset[x]) -#define ei_inb(port) in_8(port) -#define ei_outb(val, port) out_8(port, val) -#define ei_inb_p(port) in_8(port) -#define ei_outb_p(val, port) out_8(port, val) - -#include "lib8390.c" - -#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 CABLETRON_8390_BASE 0x90000 -#define CABLETRON_8390_MEM 0x00000 - -#define INTERLAN_8390_BASE 0xE0000 -#define INTERLAN_8390_MEM 0xD0000 - -enum mac8390_type { - MAC8390_NONE = -1, - MAC8390_APPLE, - MAC8390_ASANTE, - MAC8390_FARALLON, - MAC8390_CABLETRON, - MAC8390_DAYNA, - MAC8390_INTERLAN, - MAC8390_KINETICS, -}; - -static const char *cardname[] = { - "apple", - "asante", - "farallon", - "cabletron", - "dayna", - "interlan", - "kinetics", -}; - -static const int word16[] = { - 1, /* apple */ - 1, /* asante */ - 1, /* farallon */ - 1, /* cabletron */ - 0, /* dayna */ - 1, /* interlan */ - 0, /* kinetics */ -}; - -/* on which cards do we use NuBus resources? */ -static const int useresources[] = { - 1, /* apple */ - 1, /* asante */ - 1, /* farallon */ - 0, /* cabletron */ - 0, /* dayna */ - 0, /* interlan */ - 0, /* kinetics */ -}; - -enum mac8390_access { - ACCESS_UNKNOWN = 0, - ACCESS_32, - ACCESS_16, -}; - -extern int mac8390_memtest(struct net_device *dev); -static 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); -static void interlan_reset(struct net_device *dev); - -/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple 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)) - -#define memcmp_withio(a, b, c) memcmp((a), (void *)(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(unsigned long tp, const void *fp, int count); -static void word_memcpy_fromcard(void *tp, unsigned long fp, int count); - -static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) -{ - switch (dev->dr_sw) { - case NUBUS_DRSW_3COM: - switch (dev->dr_hw) { - case NUBUS_DRHW_APPLE_SONIC_NB: - case NUBUS_DRHW_APPLE_SONIC_LC: - case NUBUS_DRHW_SONNET: - return MAC8390_NONE; - break; - default: - return MAC8390_APPLE; - break; - } - break; - - case NUBUS_DRSW_APPLE: - switch (dev->dr_hw) { - case NUBUS_DRHW_ASANTE_LC: - return MAC8390_NONE; - break; - case NUBUS_DRHW_CABLETRON: - return MAC8390_CABLETRON; - break; - default: - return MAC8390_APPLE; - break; - } - break; - - case NUBUS_DRSW_ASANTE: - return MAC8390_ASANTE; - break; - - case NUBUS_DRSW_TECHWORKS: - case NUBUS_DRSW_DAYNA2: - case NUBUS_DRSW_DAYNA_LC: - if (dev->dr_hw == NUBUS_DRHW_CABLETRON) - return MAC8390_CABLETRON; - else - return MAC8390_APPLE; - break; - - case NUBUS_DRSW_FARALLON: - return MAC8390_FARALLON; - break; - - case NUBUS_DRSW_KINETICS: - switch (dev->dr_hw) { - case NUBUS_DRHW_INTERLAN: - return MAC8390_INTERLAN; - break; - default: - return MAC8390_KINETICS; - break; - } - break; - - case NUBUS_DRSW_DAYNA: - /* - * These correspond to Dayna Sonic cards - * which use the macsonic driver - */ - if (dev->dr_hw == NUBUS_DRHW_SMC9194 || - dev->dr_hw == NUBUS_DRHW_INTERLAN) - return MAC8390_NONE; - else - return MAC8390_DAYNA; - break; - } - return MAC8390_NONE; -} - -static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) -{ - unsigned long outdata = 0xA5A0B5B0; - unsigned long indata = 0x00000000; - /* Try writing 32 bits */ - memcpy_toio(membase, &outdata, 4); - /* Now compare them */ - if (memcmp_withio(&outdata, membase, 4) == 0) - return ACCESS_32; - /* Write 16 bit output */ - word_memcpy_tocard(membase, &outdata, 4); - /* Now read it back */ - word_memcpy_fromcard(&indata, membase, 4); - if (outdata == indata) - return ACCESS_16; - return ACCESS_UNKNOWN; -} - -static int __init mac8390_memsize(unsigned long membase) -{ - unsigned long flags; - int i, j; - - local_irq_save(flags); - /* 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; - } - } - local_irq_restore(flags); - /* - * in any case, we stopped once we tried one block too many, - * or once we reached 32K - */ - return i * 0x1000; -} - -static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev, - enum mac8390_type cardtype) -{ - struct nubus_dir dir; - struct nubus_dirent ent; - int offset; - volatile unsigned short *i; - - printk_once(KERN_INFO pr_fmt("%s"), 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) { - pr_err("%s: Unable to get Nubus functional directory for slot %X!\n", - dev->name, ndev->board->slot); - return false; - } - - /* Get the MAC address */ - if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) { - pr_info("%s: Couldn't get MAC address!\n", dev->name); - return false; - } - - nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); - - if (useresources[cardtype] == 1) { - nubus_rewinddir(&dir); - if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, - &ent) == -1) { - pr_err("%s: Memory offset resource for slot %X not found!\n", - dev->name, ndev->board->slot); - return false; - } - 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) { - pr_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_INTERLAN: - dev->base_addr = (int)(ndev->board->slot_addr + - INTERLAN_8390_BASE); - dev->mem_start = (int)(ndev->board->slot_addr + - INTERLAN_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: - pr_err("Card type %s is unsupported, sorry\n", - ndev->board->name); - return false; - } - } - - return true; -} - -struct net_device * __init mac8390_probe(int unit) -{ - struct net_device *dev; - struct nubus_dev *ndev = NULL; - int err = -ENODEV; - - static unsigned int slots; - - enum mac8390_type cardtype; - - /* probably should check for Nubus instead */ - - if (!MACH_IS_MAC) - return ERR_PTR(-ENODEV); - - dev = ____alloc_ei_netdev(0); - if (!dev) - return ERR_PTR(-ENOMEM); - - if (unit >= 0) - sprintf(dev->name, "eth%d", unit); - - while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, - ndev))) { - /* Have we seen it already? */ - if (slots & (1 << ndev->board->slot)) - continue; - slots |= 1 << ndev->board->slot; - - cardtype = mac8390_ident(ndev); - if (cardtype == MAC8390_NONE) - continue; - - if (!mac8390_init(dev, ndev, cardtype)) - continue; - - /* Do the nasty 8390 stuff */ - if (!mac8390_initdev(dev, ndev, cardtype)) - break; - } - - if (!ndev) - goto out; - err = register_netdev(dev); - if (err) - goto out; - return dev; - -out: - free_netdev(dev); - return ERR_PTR(err); -} - -#ifdef MODULE -MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); -MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); -MODULE_LICENSE("GPL"); - -/* overkill, of course */ -static struct net_device *dev_mac8390[15]; -int init_module(void) -{ - int i; - for (i = 0; i < 15; i++) { - struct net_device *dev = mac8390_probe(-1); - if (IS_ERR(dev)) - break; - dev_mac890[i] = dev; - } - if (!i) { - pr_notice("No useable cards found, driver NOT installed.\n"); - return -ENODEV; - } - return 0; -} - -void cleanup_module(void) -{ - int i; - for (i = 0; i < 15; i++) { - struct net_device *dev = dev_mac890[i]; - if (dev) { - unregister_netdev(dev); - free_netdev(dev); - } - } -} - -#endif /* MODULE */ - -static const struct net_device_ops mac8390_netdev_ops = { - .ndo_open = mac8390_open, - .ndo_stop = mac8390_close, - .ndo_start_xmit = __ei_start_xmit, - .ndo_tx_timeout = __ei_tx_timeout, - .ndo_get_stats = __ei_get_stats, - .ndo_set_multicast_list = __ei_set_multicast_list, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, - .ndo_change_mtu = eth_change_mtu, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = __ei_poll, -#endif -}; - -static 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 = 0; - - /* Now fill in our stuff */ - dev->netdev_ops = &mac8390_netdev_ops; - - /* 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: - pr_err("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: - pr_err("Card type %s is unsupported, sorry\n", - ndev->board->name); - return -ENODEV; - } - - __NS8390_init(dev, 0); - - /* Good, done, now spit out some messages */ - pr_info("%s: %s in slot %X (type %s)\n", - dev->name, ndev->board->name, ndev->board->slot, - cardname[type]); - pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", - dev->dev_addr, dev->irq, - (unsigned int)(dev->mem_end - dev->mem_start) >> 10, - dev->mem_start, access_bitmode ? 32 : 16); - return 0; -} - -static int mac8390_open(struct net_device *dev) -{ - int err; - - __ei_open(dev); - err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev); - if (err) - pr_err("%s: unable to get IRQ %d\n", dev->name, dev->irq); - return err; -} - -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) - pr_info("reset not supported\n"); -} - -static void interlan_reset(struct net_device *dev) -{ - unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq)); - if (ei_debug > 1) - pr_info("Need to reset the NS8390 t=%lu...", jiffies); - ei_status.txing = 0; - target[0xC0000] = 0; - if (ei_debug > 1) - pr_cont("reset complete\n"); -} - -/* 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(hdr, 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, dev->mem_start + xfer_base, - semi_count); - count -= semi_count; - memcpy_fromio(skb->data + semi_count, ei_status.rmem_start, - count); - } else { - memcpy_fromio(skb->data, 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(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, 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(hdr, 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, dev->mem_start + xfer_base, - semi_count); - count -= semi_count; - word_memcpy_fromcard(skb->data + semi_count, - ei_status.rmem_start, count); - } else { - word_memcpy_fromcard(skb->data, 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(dev->mem_start + shmem, buf, count); -} - -static void word_memcpy_tocard(unsigned long tp, const void *fp, int count) -{ - volatile unsigned short *to = (void *)tp; - const unsigned short *from = fp; - - count++; - count /= 2; - - while (count--) - *to++ = *from++; -} - -static void word_memcpy_fromcard(void *tp, unsigned long fp, int count) -{ - unsigned short *to = tp; - const volatile unsigned short *from = (const void *)fp; - - count++; - count /= 2; - - while (count--) - *to++ = *from++; -} - - |
