diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-02 13:20:12 (GMT) |
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committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-11 02:54:25 (GMT) |
commit | 644570b830266ff33ff5f3542b9c838f93a55ea6 (patch) | |
tree | b19c680ce1b1e4cd15465c74aa335459068c033f /drivers/net/ne.c | |
parent | b955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (diff) | |
download | linux-fsl-qoriq-644570b830266ff33ff5f3542b9c838f93a55ea6.tar.xz |
8390: Move the 8390 related drivers
Moves the drivers for the National Semi-conductor 8390 chipset into
drivers/net/ethernet/8390/ and the necessary Kconfig and Makefile
changes.
CC: Donald Becker <becker@scyld.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Alain Malek <alain.malek@cryogen.com>
CC: Peter De Schrijver <p2@mind.be>
CC: "David Huggins-Daines" <dhd@debian.org>
CC: Wim Dumon <wimpie@kotnet.org>
CC: Yoshinori Sato <ysato@users.sourceforge.jp>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ne.c')
-rw-r--r-- | drivers/net/ne.c | 1008 |
1 files changed, 0 insertions, 1008 deletions
diff --git a/drivers/net/ne.c b/drivers/net/ne.c deleted file mode 100644 index 1063093..0000000 --- a/drivers/net/ne.c +++ /dev/null @@ -1,1008 +0,0 @@ -/* ne.c: A general non-shared-memory NS8390 ethernet driver for linux. */ -/* - Written 1992-94 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. - - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403 - - This driver should work with many programmed-I/O 8390-based ethernet - boards. Currently it supports the NE1000, NE2000, many clones, - and some Cabletron products. - - Changelog: - - Paul Gortmaker : use ENISR_RDC to monitor Tx PIO uploads, made - sanity checks and bad clone support optional. - Paul Gortmaker : new reset code, reset card after probe at boot. - Paul Gortmaker : multiple card support for module users. - Paul Gortmaker : Support for PCI ne2k clones, similar to lance.c - Paul Gortmaker : Allow users with bad cards to avoid full probe. - Paul Gortmaker : PCI probe changes, more PCI cards supported. - rjohnson@analogic.com : Changed init order so an interrupt will only - occur after memory is allocated for dev->priv. Deallocated memory - last in cleanup_modue() - Richard Guenther : Added support for ISAPnP cards - Paul Gortmaker : Discontinued PCI support - use ne2k-pci.c instead. - Hayato Fujiwara : Add m32r support. - -*/ - -/* Routines for the NatSemi-based designs (NE[12]000). */ - -static const char version1[] = -"ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)\n"; -static const char version2[] = -"Last modified Nov 1, 2000 by Paul Gortmaker\n"; - - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/isapnp.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/jiffies.h> -#include <linux/platform_device.h> - -#include <asm/system.h> -#include <asm/io.h> - -#include "8390.h" - -#define DRV_NAME "ne" - -/* Some defines that people can play with if so inclined. */ - -/* Do we support clones that don't adhere to 14,15 of the SAprom ? */ -#define SUPPORT_NE_BAD_CLONES -/* 0xbad = bad sig or no reset ack */ -#define BAD 0xbad - -#define MAX_NE_CARDS 4 /* Max number of NE cards per module */ -static struct platform_device *pdev_ne[MAX_NE_CARDS]; -static int io[MAX_NE_CARDS]; -static int irq[MAX_NE_CARDS]; -static int bad[MAX_NE_CARDS]; - -#ifdef MODULE -module_param_array(io, int, NULL, 0); -module_param_array(irq, int, NULL, 0); -module_param_array(bad, int, NULL, 0); -MODULE_PARM_DESC(io, "I/O base address(es),required"); -MODULE_PARM_DESC(irq, "IRQ number(s)"); -MODULE_PARM_DESC(bad, "Accept card(s) with bad signatures"); -MODULE_DESCRIPTION("NE1000/NE2000 ISA/PnP Ethernet driver"); -MODULE_LICENSE("GPL"); -#endif /* MODULE */ - -/* Do we perform extra sanity checks on stuff ? */ -/* #define NE_SANITY_CHECK */ - -/* Do we implement the read before write bugfix ? */ -/* #define NE_RW_BUGFIX */ - -/* Do we have a non std. amount of memory? (in units of 256 byte pages) */ -/* #define PACKETBUF_MEMSIZE 0x40 */ - -/* This is set up so that no ISA autoprobe takes place. We can't guarantee -that the ne2k probe is the last 8390 based probe to take place (as it -is at boot) and so the probe will get confused by any other 8390 cards. -ISA device autoprobes on a running machine are not recommended anyway. */ -#if !defined(MODULE) && (defined(CONFIG_ISA) || defined(CONFIG_M32R)) -/* Do we need a portlist for the ISA auto-probe ? */ -#define NEEDS_PORTLIST -#endif - -/* A zero-terminated list of I/O addresses to be probed at boot. */ -#ifdef NEEDS_PORTLIST -static unsigned int netcard_portlist[] __initdata = { - 0x300, 0x280, 0x320, 0x340, 0x360, 0x380, 0 -}; -#endif - -static struct isapnp_device_id isapnp_clone_list[] __initdata = { - { ISAPNP_CARD_ID('A','X','E',0x2011), - ISAPNP_VENDOR('A','X','E'), ISAPNP_FUNCTION(0x2011), - (long) "NetGear EA201" }, - { ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('E','D','I'), ISAPNP_FUNCTION(0x0216), - (long) "NN NE2000" }, - { ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('P','N','P'), ISAPNP_FUNCTION(0x80d6), - (long) "Generic PNP" }, - { } /* terminate list */ -}; - -MODULE_DEVICE_TABLE(isapnp, isapnp_clone_list); - -#ifdef SUPPORT_NE_BAD_CLONES -/* A list of bad clones that we none-the-less recognize. */ -static struct { const char *name8, *name16; unsigned char SAprefix[4];} -bad_clone_list[] __initdata = { - {"DE100", "DE200", {0x00, 0xDE, 0x01,}}, - {"DE120", "DE220", {0x00, 0x80, 0xc8,}}, - {"DFI1000", "DFI2000", {'D', 'F', 'I',}}, /* Original, eh? */ - {"EtherNext UTP8", "EtherNext UTP16", {0x00, 0x00, 0x79}}, - {"NE1000","NE2000-invalid", {0x00, 0x00, 0xd8}}, /* Ancient real NE1000. */ - {"NN1000", "NN2000", {0x08, 0x03, 0x08}}, /* Outlaw no-name clone. */ - {"4-DIM8","4-DIM16", {0x00,0x00,0x4d,}}, /* Outlaw 4-Dimension cards. */ - {"Con-Intl_8", "Con-Intl_16", {0x00, 0x00, 0x24}}, /* Connect Int'nl */ - {"ET-100","ET-200", {0x00, 0x45, 0x54}}, /* YANG and YA clone */ - {"COMPEX","COMPEX16",{0x00,0x80,0x48}}, /* Broken ISA Compex cards */ - {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */ - {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */ - {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */ -#ifdef CONFIG_MACH_TX49XX - {"RBHMA4X00-RTL8019", "RBHMA4X00-RTL8019", {0x00, 0x60, 0x0a}}, /* Toshiba built-in */ -#endif - {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */ - {NULL,} -}; -#endif - -/* ---- 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 NE_IO_EXTENT 0x20 - -#define NE1SM_START_PG 0x20 /* First page of TX buffer */ -#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ -#define NESM_START_PG 0x40 /* First page of TX buffer */ -#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ - -#if defined(CONFIG_PLAT_MAPPI) -# define DCR_VAL 0x4b -#elif defined(CONFIG_PLAT_OAKS32R) || \ - defined(CONFIG_MACH_TX49XX) -# define DCR_VAL 0x48 /* 8-bit mode */ -#else -# define DCR_VAL 0x49 -#endif - -static int ne_probe1(struct net_device *dev, unsigned long ioaddr); -static int ne_probe_isapnp(struct net_device *dev); - -static void ne_reset_8390(struct net_device *dev); -static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, - int ring_page); -static void ne_block_input(struct net_device *dev, int count, - struct sk_buff *skb, int ring_offset); -static void ne_block_output(struct net_device *dev, const int count, - const unsigned char *buf, const int start_page); - - -/* Probe for various non-shared-memory ethercards. - - NEx000-clone boards have a Station Address PROM (SAPROM) in the packet - buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of - the SAPROM, while other supposed NE2000 clones must be detected by their - SA prefix. - - Reading the SAPROM from a word-wide card with the 8390 set in byte-wide - mode results in doubled values, which can be detected and compensated for. - - The probe is also responsible for initializing the card and filling - in the 'dev' and 'ei_status' structures. - - We use the minimum memory size for some ethercard product lines, iff we can't - distinguish models. You can increase the packet buffer size by setting - PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are: - E1010 starts at 0x100 and ends at 0x2000. - E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory") - E2010 starts at 0x100 and ends at 0x4000. - E2010-x starts at 0x100 and ends at 0xffff. */ - -static int __init do_ne_probe(struct net_device *dev) -{ - unsigned long base_addr = dev->base_addr; -#ifdef NEEDS_PORTLIST - int orig_irq = dev->irq; -#endif - - /* First check any supplied i/o locations. User knows best. <cough> */ - if (base_addr > 0x1ff) { /* Check a single specified location. */ - int ret = ne_probe1(dev, base_addr); - if (ret) - printk(KERN_WARNING "ne.c: No NE*000 card found at " - "i/o = %#lx\n", base_addr); - return ret; - } - else if (base_addr != 0) /* Don't probe at all. */ - return -ENXIO; - - /* Then look for any installed ISAPnP clones */ - if (isapnp_present() && (ne_probe_isapnp(dev) == 0)) - return 0; - -#ifdef NEEDS_PORTLIST - /* Last resort. The semi-risky ISA auto-probe. */ - for (base_addr = 0; netcard_portlist[base_addr] != 0; base_addr++) { - int ioaddr = netcard_portlist[base_addr]; - dev->irq = orig_irq; - if (ne_probe1(dev, ioaddr) == 0) - return 0; - } -#endif - - return -ENODEV; -} - -static int __init ne_probe_isapnp(struct net_device *dev) -{ - int i; - - for (i = 0; isapnp_clone_list[i].vendor != 0; i++) { - struct pnp_dev *idev = NULL; - - while ((idev = pnp_find_dev(NULL, - isapnp_clone_list[i].vendor, - isapnp_clone_list[i].function, - idev))) { - /* Avoid already found cards from previous calls */ - if (pnp_device_attach(idev) < 0) - continue; - if (pnp_activate_dev(idev) < 0) { - pnp_device_detach(idev); - continue; - } - /* if no io and irq, search for next */ - if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) { - pnp_device_detach(idev); - continue; - } - /* found it */ - dev->base_addr = pnp_port_start(idev, 0); - dev->irq = pnp_irq(idev, 0); - printk(KERN_INFO "ne.c: ISAPnP reports %s at i/o %#lx, irq %d.\n", - (char *) isapnp_clone_list[i].driver_data, - dev->base_addr, dev->irq); - if (ne_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */ - printk(KERN_ERR "ne.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr); - pnp_device_detach(idev); - return -ENXIO; - } - ei_status.priv = (unsigned long)idev; - break; - } - if (!idev) - continue; - return 0; - } - - return -ENODEV; -} - -static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr) -{ - int i; - unsigned char SA_prom[32]; - int wordlength = 2; - const char *name = NULL; - int start_page, stop_page; - int neX000, ctron, copam, bad_card; - int reg0, ret; - static unsigned version_printed; - - if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) - return -EBUSY; - - reg0 = inb_p(ioaddr); - if (reg0 == 0xFF) { - ret = -ENODEV; - goto err_out; - } - - /* Do a preliminary verification that we have a 8390. */ - { - int regd; - outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); - regd = inb_p(ioaddr + 0x0d); - outb_p(0xff, ioaddr + 0x0d); - outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); - inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ - if (inb_p(ioaddr + EN0_COUNTER0) != 0) { - outb_p(reg0, ioaddr); - outb_p(regd, ioaddr + 0x0d); /* Restore the old values. */ - ret = -ENODEV; - goto err_out; - } - } - - if (ei_debug && version_printed++ == 0) - printk(KERN_INFO "%s%s", version1, version2); - - printk(KERN_INFO "NE*000 ethercard probe at %#3lx:", ioaddr); - - /* A user with a poor card that fails to ack the reset, or that - does not have a valid 0x57,0x57 signature can still use this - without having to recompile. Specifying an i/o address along - with an otherwise unused dev->mem_end value of "0xBAD" will - cause the driver to skip these parts of the probe. */ - - bad_card = ((dev->base_addr != 0) && (dev->mem_end == BAD)); - - /* Reset card. Who knows what dain-bramaged state it was left in. */ - - { - unsigned long reset_start_time = jiffies; - - /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ - outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); - - while ((inb_p(ioaddr + EN0_ISR) & ENISR_RESET) == 0) - if (time_after(jiffies, reset_start_time + 2*HZ/100)) { - if (bad_card) { - printk(" (warning: no reset ack)"); - break; - } else { - printk(" not found (no reset ack).\n"); - ret = -ENODEV; - goto err_out; - } - } - - outb_p(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ - } - - /* Read the 16 bytes of station address PROM. - We must first initialize registers, similar to NS8390p_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*/ - {0x48, EN0_DCFG}, /* Set byte-wide (0x48) 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 < ARRAY_SIZE(program_seq); i++) - outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); - - } - for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { - SA_prom[i] = inb(ioaddr + NE_DATAPORT); - SA_prom[i+1] = inb(ioaddr + NE_DATAPORT); - if (SA_prom[i] != SA_prom[i+1]) - wordlength = 1; - } - - if (wordlength == 2) - { - for (i = 0; i < 16; i++) - SA_prom[i] = SA_prom[i+i]; - /* We must set the 8390 for word mode. */ - outb_p(DCR_VAL, ioaddr + EN0_DCFG); - start_page = NESM_START_PG; - - /* - * Realtek RTL8019AS datasheet says that the PSTOP register - * shouldn't exceed 0x60 in 8-bit mode. - * This chip can be identified by reading the signature from - * the remote byte count registers (otherwise write-only)... - */ - if ((DCR_VAL & 0x01) == 0 && /* 8-bit mode */ - inb(ioaddr + EN0_RCNTLO) == 0x50 && - inb(ioaddr + EN0_RCNTHI) == 0x70) - stop_page = 0x60; - else - stop_page = NESM_STOP_PG; - } else { - start_page = NE1SM_START_PG; - stop_page = NE1SM_STOP_PG; - } - -#if defined(CONFIG_PLAT_MAPPI) || defined(CONFIG_PLAT_OAKS32R) - neX000 = ((SA_prom[14] == 0x57 && SA_prom[15] == 0x57) - || (SA_prom[14] == 0x42 && SA_prom[15] == 0x42)); -#else - neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); -#endif - ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); - copam = (SA_prom[14] == 0x49 && SA_prom[15] == 0x00); - - /* Set up the rest of the parameters. */ - if (neX000 || bad_card || copam) { - name = (wordlength == 2) ? "NE2000" : "NE1000"; - } - else if (ctron) - { - name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; - start_page = 0x01; - stop_page = (wordlength == 2) ? 0x40 : 0x20; - } - else - { -#ifdef SUPPORT_NE_BAD_CLONES - /* Ack! Well, there might be a *bad* NE*000 clone there. - Check for total bogus addresses. */ - for (i = 0; bad_clone_list[i].name8; i++) - { - if (SA_prom[0] == bad_clone_list[i].SAprefix[0] && - SA_prom[1] == bad_clone_list[i].SAprefix[1] && - SA_prom[2] == bad_clone_list[i].SAprefix[2]) - { - if (wordlength == 2) - { - name = bad_clone_list[i].name16; - } else { - name = bad_clone_list[i].name8; - } - break; - } - } - if (bad_clone_list[i].name8 == NULL) - { - printk(" not found (invalid signature %2.2x %2.2x).\n", - SA_prom[14], SA_prom[15]); - ret = -ENXIO; - goto err_out; - } -#else - printk(" not found.\n"); - ret = -ENXIO; - goto err_out; -#endif - } - - if (dev->irq < 2) - { - unsigned long cookie = probe_irq_on(); - outb_p(0x50, ioaddr + EN0_IMR); /* Enable one interrupt. */ - outb_p(0x00, ioaddr + EN0_RCNTLO); - outb_p(0x00, ioaddr + EN0_RCNTHI); - outb_p(E8390_RREAD+E8390_START, ioaddr); /* Trigger it... */ - mdelay(10); /* wait 10ms for interrupt to propagate */ - outb_p(0x00, ioaddr + EN0_IMR); /* Mask it again. */ - dev->irq = probe_irq_off(cookie); - if (ei_debug > 2) - printk(" autoirq is %d\n", dev->irq); - } else if (dev->irq == 2) - /* Fixup for users that don't know that IRQ 2 is really IRQ 9, - or don't know which one to set. */ - dev->irq = 9; - - if (! dev->irq) { - printk(" failed to detect IRQ line.\n"); - ret = -EAGAIN; - goto err_out; - } - - /* Snarf the interrupt now. There's no point in waiting since we cannot - share and the board will usually be enabled. */ - ret = request_irq(dev->irq, eip_interrupt, 0, name, dev); - if (ret) { - printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret); - goto err_out; - } - - dev->base_addr = ioaddr; - -#ifdef CONFIG_PLAT_MAPPI - outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, - ioaddr + E8390_CMD); /* 0x61 */ - for (i = 0 ; i < ETHER_ADDR_LEN ; i++) { - dev->dev_addr[i] = SA_prom[i] - = inb_p(ioaddr + EN1_PHYS_SHIFT(i)); - } -#else - for(i = 0; i < ETHER_ADDR_LEN; i++) { - dev->dev_addr[i] = SA_prom[i]; - } -#endif - - printk("%pM\n", dev->dev_addr); - - ei_status.name = name; - ei_status.tx_start_page = start_page; - ei_status.stop_page = stop_page; - - /* Use 16-bit mode only if this wasn't overridden by DCR_VAL */ - ei_status.word16 = (wordlength == 2 && (DCR_VAL & 0x01)); - - 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 = &ne_reset_8390; - ei_status.block_input = &ne_block_input; - ei_status.block_output = &ne_block_output; - ei_status.get_8390_hdr = &ne_get_8390_hdr; - ei_status.priv = 0; - - dev->netdev_ops = &eip_netdev_ops; - NS8390p_init(dev, 0); - - ret = register_netdev(dev); - if (ret) - goto out_irq; - printk(KERN_INFO "%s: %s found at %#lx, using IRQ %d.\n", - dev->name, name, ioaddr, dev->irq); - return 0; - -out_irq: - free_irq(dev->irq, dev); -err_out: - release_region(ioaddr, NE_IO_EXTENT); - return ret; -} - -/* 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 ne_reset_8390(struct net_device *dev) -{ - unsigned long reset_start_time = jiffies; - - if (ei_debug > 1) - printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies); - - /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ - 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_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) - if (time_after(jiffies, reset_start_time + 2*HZ/100)) { - printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name); - break; - } - outb_p(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 ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) -{ - int 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(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr " - "[DMAstat:%d][irqlock:%d].\n", - dev->name, ei_status.dmaing, ei_status.irqlock); - return; - } - - ei_status.dmaing |= 0x01; - outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); - outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); - outb_p(0, nic_base + EN0_RCNTHI); - outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ - outb_p(ring_page, nic_base + EN0_RSARHI); - outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); - - if (ei_status.word16) - insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); - else - insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); - - outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ - ei_status.dmaing &= ~0x01; - - le16_to_cpus(&hdr->count); -} - -/* 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 ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) -{ -#ifdef NE_SANITY_CHECK - int xfer_count = count; -#endif - int 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(KERN_EMERG "%s: DMAing conflict in ne_block_input " - "[DMAstat:%d][irqlock:%d].\n", - dev->name, ei_status.dmaing, ei_status.irqlock); - return; - } - ei_status.dmaing |= 0x01; - outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); - outb_p(count & 0xff, nic_base + EN0_RCNTLO); - outb_p(count >> 8, nic_base + EN0_RCNTHI); - outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); - outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); - outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); - if (ei_status.word16) - { - insw(NE_BASE + NE_DATAPORT,buf,count>>1); - if (count & 0x01) - { - buf[count-1] = inb(NE_BASE + NE_DATAPORT); -#ifdef NE_SANITY_CHECK - xfer_count++; -#endif - } - } else { - insb(NE_BASE + NE_DATAPORT, buf, count); - } - -#ifdef NE_SANITY_CHECK - /* This was for the ALPHA version only, but enough people have - been encountering problems so it is still here. If you see - this message you either 1) have a slightly incompatible clone - or 2) have noise/speed problems with your bus. */ - - if (ei_debug > 1) - { - /* DMA termination address check... */ - int addr, tries = 20; - do { - /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here - -- it's broken for Rx on some cards! */ - int high = inb_p(nic_base + EN0_RSARHI); - int low = inb_p(nic_base + EN0_RSARLO); - addr = (high << 8) + low; - if (((ring_offset + xfer_count) & 0xff) == low) - break; - } while (--tries > 0); - if (tries <= 0) - printk(KERN_WARNING "%s: RX transfer address mismatch," - "%#4.4x (expected) vs. %#4.4x (actual).\n", - dev->name, ring_offset + xfer_count, addr); - } -#endif - outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ - ei_status.dmaing &= ~0x01; -} - -static void ne_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; -#ifdef NE_SANITY_CHECK - int retries = 0; -#endif - - /* Round the count up for word writes. Do we need to do this? - What effect will an odd byte count have on the 8390? - I should check someday. */ - - if (ei_status.word16 && (count & 0x01)) - count++; - - /* This *shouldn't* happen. If it does, it's the last thing you'll see */ - if (ei_status.dmaing) - { - printk(KERN_EMERG "%s: DMAing conflict in ne_block_output." - "[DMAstat:%d][irqlock:%d]\n", - dev->name, ei_status.dmaing, ei_status.irqlock); - return; - } - ei_status.dmaing |= 0x01; - /* We should already be in page 0, but to be safe... */ - outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); - -#ifdef NE_SANITY_CHECK -retry: -#endif - -#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_p(0x42, nic_base + EN0_RCNTLO); - outb_p(0x00, nic_base + EN0_RCNTHI); - outb_p(0x42, nic_base + EN0_RSARLO); - outb_p(0x00, nic_base + EN0_RSARHI); - outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); - /* Make certain that the dummy read has occurred. */ - udelay(6); -#endif - - outb_p(ENISR_RDC, nic_base + EN0_ISR); - - /* Now the normal output. */ - outb_p(count & 0xff, nic_base + EN0_RCNTLO); - outb_p(count >> 8, nic_base + EN0_RCNTHI); - outb_p(0x00, nic_base + EN0_RSARLO); - outb_p(start_page, nic_base + EN0_RSARHI); - - outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD); - if (ei_status.word16) { - outsw(NE_BASE + NE_DATAPORT, buf, count>>1); - } else { - outsb(NE_BASE + NE_DATAPORT, buf, count); - } - - dma_start = jiffies; - -#ifdef NE_SANITY_CHECK - /* This was for the ALPHA version only, but enough people have - been encountering problems so it is still here. */ - - if (ei_debug > 1) - { - /* DMA termination address check... */ - int addr, tries = 20; - do { - int high = inb_p(nic_base + EN0_RSARHI); - int low = inb_p(nic_base + EN0_RSARLO); - addr = (high << 8) + low; - if ((start_page << 8) + count == addr) - break; - } while (--tries > 0); - - if (tries <= 0) - { - printk(KERN_WARNING "%s: Tx packet transfer address mismatch," - "%#4.4x (expected) vs. %#4.4x (actual).\n", - dev->name, (start_page << 8) + count, addr); - if (retries++ == 0) - goto retry; - } - } -#endif - - while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) - if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ - printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); - ne_reset_8390(dev); - NS8390p_init(dev, 1); - break; - } - - outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ - ei_status.dmaing &= ~0x01; -} - -static int __init ne_drv_probe(struct platform_device *pdev) -{ - struct net_device *dev; - int err, this_dev = pdev->id; - struct resource *res; - - dev = alloc_eip_netdev(); - if (!dev) - return -ENOMEM; - - /* ne.c doesn't populate resources in platform_device, but - * rbtx4927_ne_init and rbtx4938_ne_init do register devices - * with resources. - */ - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (res) { - dev->base_addr = res->start; - dev->irq = platform_get_irq(pdev, 0); - } else { - if (this_dev < 0 || this_dev >= MAX_NE_CARDS) { - free_netdev(dev); - return -EINVAL; - } - dev->base_addr = io[this_dev]; - dev->irq = irq[this_dev]; - dev->mem_end = bad[this_dev]; - } - err = do_ne_probe(dev); - if (err) { - free_netdev(dev); - return err; - } - platform_set_drvdata(pdev, dev); - - /* Update with any values found by probing, don't update if - * resources were specified. - */ - if (!res) { - io[this_dev] = dev->base_addr; - irq[this_dev] = dev->irq; - } - return 0; -} - -static int ne_drv_remove(struct platform_device *pdev) -{ - struct net_device *dev = platform_get_drvdata(pdev); - - if (dev) { - struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; - netif_device_detach(dev); - unregister_netdev(dev); - if (idev) - pnp_device_detach(idev); - /* Careful ne_drv_remove can be called twice, once from - * the platform_driver.remove and again when the - * platform_device is being removed. - */ - ei_status.priv = 0; - free_irq(dev->irq, dev); - release_region(dev->base_addr, NE_IO_EXTENT); - free_netdev(dev); - platform_set_drvdata(pdev, NULL); - } - return 0; -} - -/* Remove unused devices or all if true. */ -static void ne_loop_rm_unreg(int all) -{ - int this_dev; - struct platform_device *pdev; - for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - pdev = pdev_ne[this_dev]; - /* No network device == unused */ - if (pdev && (!platform_get_drvdata(pdev) || all)) { - ne_drv_remove(pdev); - platform_device_unregister(pdev); - pdev_ne[this_dev] = NULL; - } - } -} - -#ifdef CONFIG_PM -static int ne_drv_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct net_device *dev = platform_get_drvdata(pdev); - - if (netif_running(dev)) { - struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; - netif_device_detach(dev); - if (idev) - pnp_stop_dev(idev); - } - return 0; -} - -static int ne_drv_resume(struct platform_device *pdev) -{ - struct net_device *dev = platform_get_drvdata(pdev); - - if (netif_running(dev)) { - struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; - if (idev) - pnp_start_dev(idev); - ne_reset_8390(dev); - NS8390p_init(dev, 1); - netif_device_attach(dev); - } - return 0; -} -#else -#define ne_drv_suspend NULL -#define ne_drv_resume NULL -#endif - -static struct platform_driver ne_driver = { - .remove = ne_drv_remove, - .suspend = ne_drv_suspend, - .resume = ne_drv_resume, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -static void __init ne_add_devices(void) -{ - int this_dev; - struct platform_device *pdev; - - for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - if (pdev_ne[this_dev]) - continue; - pdev = platform_device_register_simple( - DRV_NAME, this_dev, NULL, 0); - if (IS_ERR(pdev)) - continue; - pdev_ne[this_dev] = pdev; - } -} - -#ifdef MODULE -int __init init_module(void) -{ - int retval; - ne_add_devices(); - retval = platform_driver_probe(&ne_driver, ne_drv_probe); - if (retval) { - if (io[0] == 0) - printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\"" - " value(s) for ISA cards.\n"); - ne_loop_rm_unreg(1); - return retval; - } - - /* Unregister unused platform_devices. */ - ne_loop_rm_unreg(0); - return retval; -} -#else /* MODULE */ -static int __init ne_init(void) -{ - int retval = platform_driver_probe(&ne_driver, ne_drv_probe); - - /* Unregister unused platform_devices. */ - ne_loop_rm_unreg(0); - return retval; -} -module_init(ne_init); - -struct net_device * __init ne_probe(int unit) -{ - int this_dev; - struct net_device *dev; - - /* Find an empty slot, that is no net_device and zero io port. */ - this_dev = 0; - while ((pdev_ne[this_dev] && platform_get_drvdata(pdev_ne[this_dev])) || - io[this_dev]) { - if (++this_dev == MAX_NE_CARDS) - return ERR_PTR(-ENOMEM); - } - - /* Get irq, io from kernel command line */ - dev = alloc_eip_netdev(); - if (!dev) - return ERR_PTR(-ENOMEM); - - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - - io[this_dev] = dev->base_addr; - irq[this_dev] = dev->irq; - bad[this_dev] = dev->mem_end; - - free_netdev(dev); - - ne_add_devices(); - - /* return the first device found */ - for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - if (pdev_ne[this_dev]) { - dev = platform_get_drvdata(pdev_ne[this_dev]); - if (dev) - return dev; - } - } - - return ERR_PTR(-ENODEV); -} -#endif /* MODULE */ - -static void __exit ne_exit(void) -{ - platform_driver_unregister(&ne_driver); - ne_loop_rm_unreg(1); -} -module_exit(ne_exit); |