diff options
Diffstat (limited to 'debian/patches/bugfix/m68k/atari-ethernec.diff')
| -rw-r--r-- | debian/patches/bugfix/m68k/atari-ethernec.diff | 1106 |
1 files changed, 1106 insertions, 0 deletions
diff --git a/debian/patches/bugfix/m68k/atari-ethernec.diff b/debian/patches/bugfix/m68k/atari-ethernec.diff new file mode 100644 index 000000000000..9ddd4570479a --- /dev/null +++ b/debian/patches/bugfix/m68k/atari-ethernec.diff @@ -0,0 +1,1106 @@ +Subject: [PATCH] m68k: Atari EtherNEC driver +Cc: Jeff Garzik <jgarzik@pobox.com>, netdev@vger.kernel.org + +From: Michael Schmitz <schmitz@opal.biophys.uni-duesseldorf.de> + +Atari EtherNEC driver + +Signed-off-by: Michael Schmitz <schmitz@debian.org> +Signed-off-by: Roman Zippel <zippel@linux-m68k.org> +Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> +--- + drivers/net/Makefile | 1 + drivers/net/Space.c | 4 + drivers/net/atari_ethernec.c | 1057 +++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 1062 insertions(+) + +--- linux-m68k-2.6.21.orig/drivers/net/Makefile ++++ linux-m68k-2.6.21/drivers/net/Makefile +@@ -177,6 +177,7 @@ obj-$(CONFIG_DECLANCE) += declance.o + obj-$(CONFIG_ATARILANCE) += atarilance.o + obj-$(CONFIG_ATARI_BIONET) += atari_bionet.o + obj-$(CONFIG_ATARI_PAMSNET) += atari_pamsnet.o ++obj-$(CONFIG_ATARI_ETHERNEC) += atari_ethernec.o 8390.o + obj-$(CONFIG_A2065) += a2065.o + obj-$(CONFIG_HYDRA) += hydra.o + obj-$(CONFIG_ARIADNE) += ariadne.o +--- linux-m68k-2.6.21.orig/drivers/net/Space.c ++++ linux-m68k-2.6.21/drivers/net/Space.c +@@ -72,6 +72,7 @@ extern struct net_device *SK_init(int un + extern struct net_device *seeq8005_probe(int unit); + extern struct net_device *smc_init(int unit); + extern struct net_device *atarilance_probe(int unit); ++extern struct net_device *atari_ethernec_probe(int unit); + extern struct net_device *sun3lance_probe(int unit); + extern struct net_device *sun3_82586_probe(int unit); + extern struct net_device *apne_probe(int unit); +@@ -255,6 +256,9 @@ static struct devprobe2 m68k_probes[] __ + #ifdef CONFIG_ATARILANCE /* Lance-based Atari ethernet boards */ + {atarilance_probe, 0}, + #endif ++#ifdef CONFIG_ATARI_ETHERNEC /* NE2000 based ROM port ethernet cards */ ++ {atari_ethernec_probe, 0}, ++#endif + #ifdef CONFIG_SUN3LANCE /* sun3 onboard Lance chip */ + {sun3lance_probe, 0}, + #endif +--- /dev/null ++++ linux-m68k-2.6.21/drivers/net/atari_ethernec.c +@@ -0,0 +1,1057 @@ ++/* ++ * atari_ethernec.c: Atari cartridge port ethernet adapter ++ * (C) 2006 Michael Schmitz ++ * ++ * Modified after: ++ */ ++ ++/* 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. ++ ++*/ ++ ++/* ++ * From the driver distribution kit by Thomas Redelberger: ++ * ++ * Hardware circuit description (see directory ETHERNEC for schematics) ++ * ++ * As there is no reset line on the CP, a resistor and a capacitor are ++ * used to reset the NE card on power up. ++ * ++ * Reading from the NE card is done by a read cycle on the CP at address ++ * /ROM4 + 512*ISA address as the ISA address lines A0-A4 are connected ++ * to CP A9-A13. /ROM4 going low will start the ISA read cycle, enable ++ * the ISA bus buffers of the NE card and start decoding of the ISA IO ++ * address by the NE card. /ROM4 going high ends the cycle and the ++ * processor latches the data. ++ * ++ * Because the CP is read only writing to the NE card must be done with ++ * the trick to read from addresses that stand for the data. Dummy reads ++ * at /ROM3 base address + data*2 + ISA address*512 effect this. You ++ * might wonder why everything appears to be shifted up one bit. There is ++ * no CP "A0" address line. There are the signals /UDS and /LDS instead ++ * typical for the 68000 family. The original design which generated an ++ * "A0" worked on an ST and an STE but did not on a Falcon. ++ * ++ * The falling edge of /ROM3 enables the CP address lines A1-A8 onto the ++ * data bus and starts the ISA write cycle. The rising edge will end the ++ * ISA write cycle and the NE latches the data. The processor will also ++ * see and just read this same data but that is harmless. ++ * Elmar Hilgart reported that the bus buffer IC shall be an TTL F-type ++ * to keep up with the fast cycles on the Falcon. ++ * ++ * Base addresses: ++ * rom4 EQU $00fa0000 ; ROM4 base address ++ * rom3 EQU $00fb0000 ; ROM3 base address ++ * ++ */ ++ ++/* 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[] = ++"atari_ethernec.c 11/10/06 Michael Schmitz (schmitz@debian.org)\n"; ++ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/wait.h> ++#include <linux/sched.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 <asm/system.h> ++#include <asm/atarihw.h> ++#include <asm/atariints.h> ++#include <asm/io.h> ++ ++#include "8390.h" ++ ++#define DRV_NAME "ethernec" ++ ++/* 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 ++ ++/* 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 */ ++ ++/* A zero-terminated list of I/O addresses to be probed at boot. */ ++#ifndef MODULE ++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 */ ++#if defined(CONFIG_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938) ++ {"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_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938) || \ ++ defined(CONFIG_ATARI_ETHERNEC) || defined(CONFIG_ATARI_ETHERNEC_MODULE) ++# define DCR_VAL 0x48 /* 8-bit mode */ ++#else ++# define DCR_VAL 0x49 ++#endif ++ ++#if defined(CONFIG_ATARI_ETHERNEC) || defined(CONFIG_ATARI_ETHERNEC_MODULE) ++# define ETHERNEC_RTL_8019_BASE 0x300 ++# define ETHERNEC_RTL_8019_IRQ IRQ_MFP_TIMD ++#endif ++ ++static int ne_probe1(struct net_device *dev, int ioaddr); ++static int ne_probe_isapnp(struct net_device *dev); ++ ++static int ne_open(struct net_device *dev); ++static int ne_close(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); ++ ++ ++/* ++ * The Atari ROM port has no interrupt line, so we poll the card instead. ++ */ ++ ++static int use_poll; ++ ++/* ++ * This is used by cleanup, to prevent the module from being unloaded while ++ * intrpt_routine is still in the task queue ++ */ ++static wait_queue_head_t WaitQ; ++ ++static struct work_struct tqueue; ++ ++#ifdef ETHERNEC_USE_POLL ++static struct { ++ struct work_struct poll_queue; ++ struct timer_list poll_timer; ++ struct net_device *dev; ++} poll_ops; ++#endif ++ ++static struct net_device *poll_dev = NULL; ++ ++static void atari_ethernec_int(unsigned long dev_addr) ++{ ++ struct net_device *dev = poll_dev; ++ ++ if (!dev) { ++ /* If cleanup wants us to die */ ++ if (waitqueue_active(&WaitQ)) ++ wake_up(&WaitQ); /* Now cleanup_module can return */ ++ else ++ /* Put ourselves back in the task queue */ ++ schedule_delayed_work(&tqueue, 1); ++ return; ++ } ++ ++ if (netif_running(dev)) ++ ei_interrupt(dev->irq, dev); ++ ++ /* If cleanup wants us to die */ ++ if (waitqueue_active(&WaitQ)) ++ wake_up(&WaitQ); /* Now cleanup_module can return */ ++ else ++ /* Put ourselves back in the task queue */ ++ schedule_delayed_work(&tqueue, 0); /* reduced delay from 1 */ ++} ++ ++#ifdef ETHERNEC_USE_POLL ++static void atari_ethernec_poll_handler(unsigned long dev_addr) ++{ ++ struct net_device *dev = poll_dev; ++ ++ if (!dev || !dev->poll_controller) ++ return; ++ ++ if (netif_running(dev)) ++ dev->poll_controller(dev); ++ ++ schedule_work(&poll_ops.poll_queue); ++ mod_timer(&poll_ops.poll_timer, jiffies + HZ / 100); ++} ++#endif ++ ++static void atari_ethernec_start_poll(struct net_device *dev) ++{ ++ poll_dev = dev; ++ ++ init_waitqueue_head(&WaitQ); ++ ++ INIT_WORK(&tqueue, (void (*)(void *))atari_ethernec_int, dev); ++ schedule_delayed_work(&tqueue, 1); ++#ifdef ETHERNEC_USE_POLL ++ if (!poll_ops.poll_queue.func || ++ poll_ops.poll_queue.func == ei_interrupt) { ++ if (!poll_ops.poll_queue.func) ++ INIT_WORK(&poll_ops.poll_queue, ei_interrupt, dev); ++ ++ init_timer(&poll_ops.poll_timer); ++ poll_ops.poll_timer.function = atari_ethernec_poll_handler; ++ poll_ops.poll_timer.expires = jiffies + HZ / 5; ++ poll_ops.poll_timer.data = (unsigned long)dev; ++ add_timer(&poll_ops.poll_timer); ++ } ++#endif ++} ++ ++static void atari_ethernec_stop_poll(struct net_device *dev) ++{ ++ poll_dev = NULL; ++ ++ if (dev) ++ sleep_on(&WaitQ); ++ ++#ifdef ETHERNEC_USE_POLL ++ if (poll_ops.poll_queue.func == ei_interrupt) ++ del_timer_sync(&poll_ops.poll_timer); ++#endif ++} ++ ++ ++/* 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 int base_addr = dev->base_addr; ++ int rv; ++#ifndef MODULE ++ int orig_irq = dev->irq; ++#endif ++ ++ SET_MODULE_OWNER(dev); ++ ++ /* First check any supplied i/o locations. User knows best. <cough> */ ++ if (base_addr > 0x1ff) { /* Check a single specified location. */ ++ rv = ne_probe1(dev, base_addr); ++ if (!rv && use_poll) { ++ /* Seems we have a valid device here; set up polling routine */ ++ poll_dev = dev; ++ atari_ethernec_start_poll(dev); ++ } ++ return rv; ++ } 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; ++ ++#ifndef MODULE ++ /* 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; ++ rv = ne_probe1(dev, ioaddr); ++ if (rv == 0) { ++ if (use_poll) { ++ poll_dev = dev; ++ atari_ethernec_start_poll(dev); ++ } ++ return 0; ++ } ++ } ++#endif ++ ++ return -ENODEV; ++} ++ ++#ifndef MODULE ++struct net_device * __init atari_ethernec_probe(int unit) ++{ ++ struct net_device *dev = alloc_ei_netdev(); ++ int err; ++ ++ if (!dev) ++ return ERR_PTR(-ENOMEM); ++ ++ sprintf(dev->name, "eth%d", unit); ++ netdev_boot_setup_check(dev); ++ ++#if defined(CONFIG_ATARI_ETHERNEC) ++ dev->base_addr = ETHERNEC_RTL_8019_BASE; ++ dev->irq = ETHERNEC_RTL_8019_IRQ; ++#endif ++ err = do_ne_probe(dev); ++ if (err) ++ goto out; ++ ++ /* Seems we have a valid device here; set up polling routine */ ++ return dev; ++out: ++ free_netdev(dev); ++ return ERR_PTR(err); ++} ++#endif ++ ++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 "atari_ethernec.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 "atari_ethernec.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, int 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" KERN_INFO "%s", version1, version2); ++ ++ /* 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 == 0xbad)); ++ ++ /* 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 { ++ // MSch: ARAnyM exits here ++ 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 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*/ ++ {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 < sizeof(program_seq)/sizeof(program_seq[0]); 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; ++ ++ /* ++ * use timer based polling! ++ */ ++ if (! dev->irq) { ++ printk(" failed to detect IRQ line. Assuming irq %d\n", ++ ETHERNEC_RTL_8019_IRQ); ++ dev->irq = ETHERNEC_RTL_8019_IRQ; ++ /* timer routine set up in atari_ethernec_probe() */ ++ if (dev->irq == IRQ_MFP_TIMD) { ++ /* set Timer D data Register */ ++ mfp.tim_dt_d = 123; /* 200 Hz */ ++ /* start timer D, div = 1:100 */ ++ mfp.tim_ct_cd = (mfp.tim_ct_cd & 0xf0) | 0x6; ++ } ++ ret = request_irq(dev->irq, ei_interrupt, 0, name, dev); ++ if (ret) { ++ printk(" unable to get IRQ %d (errno=%d), polling instead.\n", ++ dev->irq, ret); ++ use_poll = 1; ++ } ++ } else { ++ ++ /* 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, ei_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)); ++ printk(" %2.2x", SA_prom[i]); ++ } ++#else ++ for (i = 0; i < ETHER_ADDR_LEN; i++) { ++ printk(" %2.2x", SA_prom[i]); ++ dev->dev_addr[i] = SA_prom[i]; ++ } ++#endif ++ ++ printk("\n%s: %s found at %#x, using IRQ %d.\n", ++ dev->name, name, ioaddr, dev->irq); ++ ++ 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->open = &ne_open; ++ dev->stop = &ne_close; ++#ifdef CONFIG_NET_POLL_CONTROLLER ++ dev->poll_controller = ei_poll; ++#endif ++ NS8390_init(dev, 0); ++ ++ ret = register_netdev(dev); ++ if (ret) ++ goto out_irq; ++ return 0; ++ ++out_irq: ++ free_irq(dev->irq, dev); ++err_out: ++ release_region(ioaddr, NE_IO_EXTENT); ++ return ret; ++} ++ ++static int ne_open(struct net_device *dev) ++{ ++ ei_open(dev); ++ return 0; ++} ++ ++static int ne_close(struct net_device *dev) ++{ ++ if (ei_debug > 1) ++ printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name); ++ ei_close(dev); ++ 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 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); ++ NS8390_init(dev, 1); ++ break; ++ } ++ } ++ ++ outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ ++ ei_status.dmaing &= ~0x01; ++ return; ++} ++ ++ ++#ifdef MODULE ++#define MAX_NE_CARDS 4 /* Max number of NE cards per module */ ++static struct net_device *dev_ne[MAX_NE_CARDS]; ++static int io[MAX_NE_CARDS]; ++static int irq[MAX_NE_CARDS]; ++static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */ ++ ++module_param_array(io, int, NULL, 0); ++module_param_array(irq, int, NULL, 0); ++module_param_array(bad, int, NULL, 0); ++module_param(use_poll, int, 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_PARM_DESC(use_poll, "Use timer interrupt to poll driver"); ++MODULE_DESCRIPTION("NE1000/NE2000 ISA/PnP Ethernet driver"); ++MODULE_LICENSE("GPL"); ++ ++/* 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. */ ++ ++int __init init_module(void) ++{ ++ int this_dev, found = 0; ++ ++ for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { ++ struct net_device *dev = alloc_ei_netdev(); ++ if (!dev) ++ break; ++ dev->irq = irq[this_dev]; ++ dev->mem_end = bad[this_dev]; ++ dev->base_addr = io[this_dev]; ++ if (do_ne_probe(dev) == 0) { ++ dev_ne[found++] = dev; ++ continue; ++ } ++ free_netdev(dev); ++ if (found) ++ break; ++ if (io[this_dev] != 0) ++ printk(KERN_WARNING "atari_ethernec.c: No NE*000 card found at i/o = %#x\n", io[this_dev]); ++ else ++ printk(KERN_NOTICE "atari_ethernec.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n"); ++ return -ENXIO; ++ } ++ if (found) ++ return 0; ++ return -ENODEV; ++} ++ ++static void cleanup_card(struct net_device *dev) ++{ ++ struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; ++ if (idev) ++ pnp_device_detach(idev); ++ free_irq(dev->irq, dev); ++ release_region(dev->base_addr, NE_IO_EXTENT); ++} ++ ++void cleanup_module(void) ++{ ++ int this_dev; ++ ++ for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { ++ struct net_device *dev = dev_ne[this_dev]; ++ if (dev) { ++ if (use_poll) ++ atari_ethernec_stop_poll(dev); ++ unregister_netdev(dev); ++ cleanup_card(dev); ++ free_netdev(dev); ++ } ++ } ++} ++#endif /* MODULE */ |