diff options
Diffstat (limited to 'linux/src/drivers/net/ne2k-pci.c')
| -rw-r--r-- | linux/src/drivers/net/ne2k-pci.c | 647 |
1 files changed, 647 insertions, 0 deletions
diff --git a/linux/src/drivers/net/ne2k-pci.c b/linux/src/drivers/net/ne2k-pci.c new file mode 100644 index 0000000..2b2b1f4 --- /dev/null +++ b/linux/src/drivers/net/ne2k-pci.c @@ -0,0 +1,647 @@ +/* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */ +/* + A Linux device driver for PCI NE2000 clones. + + Authors and other copyright holders: + 1992-2002 by Donald Becker, NE2000 core and various modifications. + 1995-1998 by Paul Gortmaker, core modifications and PCI support. + Copyright 1993 assigned to the 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 (GPL), incorporated herein by reference. + Drivers based on or derived from this code fall under the GPL and must + retain the authorship, copyright and license notice. This file is not + a complete program and may only be used when the entire operating + system is licensed under the GPL. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + Issues remaining: + People are making PCI ne2000 clones! Oh the horror, the horror... + Limited full-duplex support. +*/ + +/* These identify the driver base version and may not be removed. */ +static const char version1[] = +"ne2k-pci.c:v1.05 6/13/2002 D. Becker/P. Gortmaker\n"; +static const char version2[] = +" http://www.scyld.com/network/ne2k-pci.html\n"; + +/* The user-configurable values. + These may be modified when a driver module is loaded.*/ + +static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ + +#define MAX_UNITS 8 /* More are supported, limit only on options */ +/* Used to pass the full-duplex flag, etc. */ +static int full_duplex[MAX_UNITS] = {0, }; +static int options[MAX_UNITS] = {0, }; + +/* Force a non std. amount of memory. Units are 256 byte pages. */ +/* #define PACKETBUF_MEMSIZE 0x40 */ + +#ifndef __KERNEL__ +#define __KERNEL__ +#endif +#if !defined(__OPTIMIZE__) +#warning You must compile this file with the correct options! +#warning See the last lines of the source file. +#error You must compile this driver with "-O". +#endif + +#include <linux/config.h> +#if defined(CONFIG_SMP) && ! defined(__SMP__) +#define __SMP__ +#endif +#if defined(MODULE) && defined(CONFIG_MODVERSIONS) && ! defined(MODVERSIONS) +#define MODVERSIONS +#endif + +#include <linux/version.h> +#include <linux/module.h> +#if LINUX_VERSION_CODE < 0x20300 && defined(MODVERSIONS) +#include <linux/modversions.h> +#endif + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pci.h> +#if LINUX_VERSION_CODE < 0x20200 +#define lock_8390_module() +#define unlock_8390_module() +#else +#include <linux/init.h> +#endif + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/irq.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include "8390.h" + +#ifdef INLINE_PCISCAN +#include "k_compat.h" +#else +#include "pci-scan.h" +#include "kern_compat.h" +#endif + +MODULE_AUTHOR("Donald Becker / Paul Gortmaker"); +MODULE_DESCRIPTION("PCI NE2000 clone driver"); +MODULE_PARM(debug, "i"); +MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i"); +MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i"); + +/* Some defines that people can play with if so inclined. */ + +/* Do #define LOAD_8390_BY_KERNELD to automatically load 8390 support. */ +#ifdef LOAD_8390_BY_KERNELD +#include <linux/kerneld.h> +#endif + +static void *ne2k_pci_probe1(struct pci_dev *pdev, void *dev, + long ioaddr, int irq, int chip_idx, int fnd_cnt); +/* Flags. We rename an existing ei_status field to store flags! */ +/* Thus only the low 8 bits are usable for non-init-time flags. */ +#define ne2k_flags reg0 +enum { + ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */ + FORCE_FDX=0x20, /* User override. */ + REALTEK_FDX=0x40, HOLTEK_FDX=0x80, + STOP_PG_0x60=0x100, +}; +#define NE_IO_EXTENT 0x20 +#ifndef USE_MEMORY_OPS +#define PCI_IOTYPE (PCI_USES_IO | PCI_ADDR0) +#else +#warning When using PCI memory mode the 8390 core must be compiled for memory +#warning operations as well. +#warning Not all PCI NE2000 clones support memory mode access. +#define PCI_IOTYPE (PCI_USES_MEM | PCI_ADDR1) +#endif + +static struct pci_id_info pci_id_tbl[] = { + {"RealTek RTL-8029",{ 0x802910ec, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, + REALTEK_FDX }, + {"Winbond 89C940", { 0x09401050, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, 0}, + {"Winbond w89c940", { 0x5a5a1050, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, 0}, + {"KTI ET32P2", { 0x30008e2e, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, 0}, + {"NetVin NV5000SC", { 0x50004a14, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, 0}, + {"Via 86C926", { 0x09261106, 0xffffffff}, + PCI_IOTYPE, NE_IO_EXTENT, ONLY_16BIT_IO}, + {"SureCom NE34", { 0x0e3410bd, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, 0}, + {"Holtek HT80232", { 0x005812c3, 0xffffffff}, + PCI_IOTYPE, NE_IO_EXTENT, ONLY_16BIT_IO | HOLTEK_FDX}, + {"Holtek HT80229", { 0x559812c3, 0xffffffff}, + PCI_IOTYPE, NE_IO_EXTENT, ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60}, + {"Compex RL2000", + { 0x140111f6, 0xffffffff}, PCI_IOTYPE, NE_IO_EXTENT, 0}, + /* A mutant board: Winbond chip with a RTL format EEPROM. */ + {"Winbond w89c940 (misprogrammed type 0x1980)", { 0x19808c4a, 0xffffffff}, + PCI_IOTYPE, NE_IO_EXTENT, 0}, + {0,}, /* 0 terminated list. */ +}; + +struct drv_id_info ne2k_pci_drv_id = { + "ne2k-pci", 0, PCI_CLASS_NETWORK_ETHERNET<<8, pci_id_tbl, ne2k_pci_probe1, +}; + +/* ---- No user-serviceable parts below ---- */ + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ + +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +int ne2k_pci_probe(struct net_device *dev); + +static int ne2k_pci_open(struct net_device *dev); +static int ne2k_pci_close(struct net_device *dev); + +static void ne2k_pci_reset_8390(struct net_device *dev); +static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ne2k_pci_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ne2k_pci_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); + + + +/* There is no room in the standard 8390 structure for extra info we need, + so we build a meta/outer-wrapper structure.. */ +struct ne2k_pci_card { + struct ne2k_pci_card *next; + struct net_device *dev; + struct pci_dev *pci_dev; +}; +/* A list of all installed devices, for removing the driver module. */ +static struct ne2k_pci_card *ne2k_card_list = NULL; + +#ifdef LOAD_8390_BY_KERNELD +static int (*Lethdev_init)(struct net_device *dev); +static void (*LNS8390_init)(struct net_device *dev, int startp); +static int (*Lei_open)(struct net_device *dev); +static int (*Lei_close)(struct net_device *dev); +static void (*Lei_interrupt)(int irq, void *dev_id, struct pt_regs *regs); +#else +#define Lethdev_init ethdev_init +#define LNS8390_init NS8390_init +#define Lei_open ei_open +#define Lei_close ei_close +#define Lei_interrupt ei_interrupt +#endif + +#ifdef MODULE +int init_module(void) +{ + int found_cnt; + + if (debug) /* Emit version even if no cards detected. */ + printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2); + found_cnt = pci_drv_register(&ne2k_pci_drv_id, NULL); + if (found_cnt < 0) { + printk(KERN_NOTICE "ne2k-pci.c: No useable cards found, driver NOT installed.\n"); + return -ENODEV; + } + lock_8390_module(); + return 0; +} + +void cleanup_module(void) +{ + struct net_device *dev; + struct ne2k_pci_card *this_card; + + pci_drv_unregister(&ne2k_pci_drv_id); + + /* No need to check MOD_IN_USE, as sys_delete_module() checks. */ + while (ne2k_card_list) { + dev = ne2k_card_list->dev; + unregister_netdev(dev); + release_region(dev->base_addr, NE_IO_EXTENT); + kfree(dev); + this_card = ne2k_card_list; + ne2k_card_list = ne2k_card_list->next; + kfree(this_card); + } + +#ifdef LOAD_8390_BY_KERNELD + release_module("8390", 0); +#else + unlock_8390_module(); +#endif +} + +#else + +int ne2k_pci_probe(struct net_device *dev) +{ + int found_cnt = pci_drv_register(&ne2k_pci_drv_id, NULL); + if (found_cnt >= 0 && debug) + printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2); + return found_cnt; +} +#endif /* MODULE */ + +static void *ne2k_pci_probe1(struct pci_dev *pdev, void *init_dev, + long ioaddr, int irq, int chip_idx, int fnd_cnt) +{ + struct net_device *dev; + int i; + unsigned char SA_prom[32]; + int start_page, stop_page; + int reg0 = inb(ioaddr); + int flags = pci_id_tbl[chip_idx].drv_flags; + struct ne2k_pci_card *ne2k_card; + + if (reg0 == 0xFF) + return 0; + + /* Do a preliminary verification that we have a 8390. */ + { + int regd; + outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); + regd = inb(ioaddr + 0x0d); + outb(0xff, ioaddr + 0x0d); + outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); + inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ + if (inb(ioaddr + EN0_COUNTER0) != 0) { + outb(reg0, ioaddr); + outb(regd, ioaddr + 0x0d); /* Restore the old values. */ + return 0; + } + } + + dev = init_etherdev(init_dev, 0); + + if (dev == NULL) + return 0; + ne2k_card = kmalloc(sizeof(struct ne2k_pci_card), GFP_KERNEL); + if (ne2k_card == NULL) + return 0; + + ne2k_card->next = ne2k_card_list; + ne2k_card_list = ne2k_card; + ne2k_card->dev = dev; + ne2k_card->pci_dev = pdev; + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { + unsigned long reset_start_time = jiffies; + + outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + /* This looks like a horrible timing loop, but it should never take + more than a few cycles. + */ + while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) + /* Limit wait: '2' avoids jiffy roll-over. */ + if (jiffies - reset_start_time > 2) { + printk("ne2k-pci: Card failure (no reset ack).\n"); + return 0; + } + + outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ + } + +#if defined(LOAD_8390_BY_KERNELD) + /* We are now certain the 8390 module is required. */ + if (request_module("8390")) { + printk("ne2k-pci: Failed to load the 8390 core module.\n"); + return 0; + } + if ((Lethdev_init = (void*)get_module_symbol(0, "ethdev_init")) == 0 || + (LNS8390_init = (void*)get_module_symbol(0, "NS8390_init")) == 0 || + (Lei_open = (void*)get_module_symbol(0, "ei_open")) == 0 || + (Lei_close = (void*)get_module_symbol(0, "ei_close")) == 0 || + (Lei_interrupt = (void*)get_module_symbol(0, "ei_interrupt")) == 0 ) { + printk("ne2k-pci: Failed to resolve an 8390 symbol.\n"); + release_module("8390", 0); + return 0; + } +#endif + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to NS8390_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct {unsigned char value, offset; } program_seq[] = { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x49, EN0_DCFG}, /* Set word-wide access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++) + outb(program_seq[i].value, ioaddr + program_seq[i].offset); + + } + + /* Note: all PCI cards have at least 16 bit access, so we don't have + to check for 8 bit cards. Most cards permit 32 bit access. */ + + if (flags & ONLY_32BIT_IO) { + for (i = 0; i < 8; i++) + ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); + } else + for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++) + SA_prom[i] = inb(ioaddr + NE_DATAPORT); + + /* We always set the 8390 registers for word mode. */ + outb(0x49, ioaddr + EN0_DCFG); + start_page = NESM_START_PG; + + stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; + + /* Set up the rest of the parameters. */ + dev->irq = irq; + dev->base_addr = ioaddr; + + /* Allocate dev->priv and fill in 8390 specific dev fields. */ + if (Lethdev_init(dev)) { + printk ("%s: unable to get memory for dev->priv.\n", dev->name); + return 0; + } + + request_region(ioaddr, NE_IO_EXTENT, dev->name); + + printk("%s: %s found at %#lx, IRQ %d, ", + dev->name, pci_id_tbl[chip_idx].name, ioaddr, dev->irq); + for(i = 0; i < 6; i++) { + printk("%2.2X%s", SA_prom[i], i == 5 ? ".\n": ":"); + dev->dev_addr[i] = SA_prom[i]; + } + + ei_status.name = pci_id_tbl[chip_idx].name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = 1; + ei_status.ne2k_flags = flags; + if (fnd_cnt < MAX_UNITS) { + if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) { + printk("%s: Full duplex set by user option.\n", dev->name); + ei_status.ne2k_flags |= FORCE_FDX; + } + } + + ei_status.rx_start_page = start_page + TX_PAGES; +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_status.reset_8390 = &ne2k_pci_reset_8390; + ei_status.block_input = &ne2k_pci_block_input; + ei_status.block_output = &ne2k_pci_block_output; + ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; + dev->open = &ne2k_pci_open; + dev->stop = &ne2k_pci_close; + LNS8390_init(dev, 0); + return dev; +} + +static int ne2k_pci_open(struct net_device *dev) +{ + MOD_INC_USE_COUNT; + if (request_irq(dev->irq, Lei_interrupt, SA_SHIRQ, dev->name, dev)) { + MOD_DEC_USE_COUNT; + return -EAGAIN; + } + /* Set full duplex for the chips that we know about. */ + if (ei_status.ne2k_flags & FORCE_FDX) { + long ioaddr = dev->base_addr; + if (ei_status.ne2k_flags & REALTEK_FDX) { + outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ + outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); + } else if (ei_status.ne2k_flags & HOLTEK_FDX) + outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); + } + Lei_open(dev); + return 0; +} + +static int ne2k_pci_close(struct net_device *dev) +{ + Lei_close(dev); + free_irq(dev->irq, dev); + MOD_DEC_USE_COUNT; + return 0; +} + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ +static void ne2k_pci_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + + if (debug > 1) printk("%s: Resetting the 8390 t=%ld...", + dev->name, jiffies); + + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (jiffies - reset_start_time > 2) { + printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name); + break; + } + outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ +} + +/* 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. */ + +static void ne2k_pci_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + + long nic_base = dev->base_addr; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr " + "[DMAstat:%d][irqlock:%d][intr:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock, + (int)dev->interrupt); + return; + } + + ei_status.dmaing |= 0x01; + outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb(0, nic_base + EN0_RCNTHI); + outb(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb(ring_page, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); + } else { + *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); + le16_to_cpus(&hdr->count); + } + + outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for hints. + The NEx000 doesn't share the on-board packet memory -- you have to put + the packet out through the "remote DMA" dataport using outb. */ + +static void ne2k_pci_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + long nic_base = dev->base_addr; + char *buf = skb->data; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne2k_pci_block_input " + "[DMAstat:%d][irqlock:%d][intr:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock, + (int)dev->interrupt); + return; + } + ei_status.dmaing |= 0x01; + if (ei_status.ne2k_flags & ONLY_32BIT_IO) + count = (count + 3) & 0xFFFC; + outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb(count & 0xff, nic_base + EN0_RCNTLO); + outb(count >> 8, nic_base + EN0_RCNTHI); + outb(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb(ring_offset >> 8, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + insw(NE_BASE + NE_DATAPORT,buf,count>>1); + if (count & 0x01) { + buf[count-1] = inb(NE_BASE + NE_DATAPORT); + } + } else { + insl(NE_BASE + NE_DATAPORT, buf, count>>2); + if (count & 3) { + buf += count & ~3; + if (count & 2) { + *((u16 *) buf) = le16_to_cpu(inw(NE_BASE + NE_DATAPORT)); + buf = (void *) buf + sizeof (u16); + } + if (count & 1) + *buf = inb(NE_BASE + NE_DATAPORT); + } + } + + outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void +ne2k_pci_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + int nic_base = NE_BASE; + unsigned long dma_start; + + /* On little-endian it's always safe to round the count up for + word writes. */ + if (ei_status.ne2k_flags & ONLY_32BIT_IO) + count = (count + 3) & 0xFFFC; + else + if (count & 0x01) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne2k_pci_block_output." + "[DMAstat:%d][irqlock:%d][intr:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock, + (int)dev->interrupt); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + +#ifdef NE8390_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + Crynwr packet driver -- the NatSemi method doesn't work. + Actually this doesn't always work either, but if you have + problems with your NEx000 this is better than nothing! */ + outb(0x42, nic_base + EN0_RCNTLO); + outb(0x00, nic_base + EN0_RCNTHI); + outb(0x42, nic_base + EN0_RSARLO); + outb(0x00, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); +#endif + outb(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + outb(count & 0xff, nic_base + EN0_RCNTLO); + outb(count >> 8, nic_base + EN0_RCNTHI); + outb(0x00, nic_base + EN0_RSARLO); + outb(start_page, nic_base + EN0_RSARHI); + outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + outsw(NE_BASE + NE_DATAPORT, buf, count>>1); + } else { + outsl(NE_BASE + NE_DATAPORT, buf, count>>2); + if (count & 3) { + buf += count & ~3; + if (count & 2) { + outw(cpu_to_le16(*((u16 *) buf)), NE_BASE + NE_DATAPORT); + buf = (void *) buf + sizeof (u16); + } + } + } + + dma_start = jiffies; + + while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) + if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */ + printk("%s: timeout waiting for Tx RDC.\n", dev->name); + ne2k_pci_reset_8390(dev); + LNS8390_init(dev,1); + break; + } + + outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; + return; +} + + +/* + * Local variables: + * compile-command: "gcc -DMODULE -Wall -Wstrict-prototypes -O6 -c ne2k-pci.c -I/usr/src/linux/drivers/net/" + * alt-compile-command: "gcc -DMODULE -O6 -c ne2k-pci.c" + * c-indent-level: 4 + * c-basic-offset: 4 + * tab-width: 4 + * version-control: t + * kept-new-versions: 5 + * End: + */ |