1 /* ne.c: A general non-shared-memory NS8390 ethernet driver for linux. */
3     Written 1992-94 by Donald Becker.
14     This driver should work with many programmed-I/O 8390-based ethernet
28     occur after memory is allocated for dev->priv. Deallocated memory
31     Paul Gortmaker	: Discontinued PCI support - use ne2k-pci.c instead.
36 /* Routines for the NatSemi-based designs (NE[12]000). */
103 /* Do we need a portlist for the ISA auto-probe ? */
107 /* A zero-terminated list of I/O addresses to be probed at boot. */
130 /* A list of bad clones that we none-the-less recognize. */
137     {"NE1000","NE2000-invalid", {0x00, 0x00, 0xd8}}, /* Ancient real NE1000. */
138     {"NN1000", "NN2000",  {0x08, 0x03, 0x08}}, /* Outlaw no-name clone. */
139     {"4-DIM8","4-DIM16", {0x00,0x00,0x4d,}},  /* Outlaw 4-Dimension cards. */
140     {"Con-Intl_8", "Con-Intl_16", {0x00, 0x00, 0x24}}, /* Connect Int'nl */
141     {"ET-100","ET-200", {0x00, 0x45, 0x54}}, /* YANG and YA clone */
143     {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */
144     {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */
145     {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */
147     {"RBHMA4X00-RTL8019", "RBHMA4X00-RTL8019", {0x00, 0x60, 0x0a}},  /* Toshiba built-in */
149     {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */
154 /* ---- No user-serviceable parts below ---- */
156 #define NE_BASE	 (dev->base_addr)
158 #define NE_DATAPORT	0x10	/* NatSemi-defined port window offset. */
168 #  define DCR_VAL 0x48		/* 8-bit mode */
169 #elif defined(CONFIG_ATARI)	/* 8-bit mode on Atari, normal on Q40 */
187 /*  Probe for various non-shared-memory ethercards.
189    NEx000-clone boards have a Station Address PROM (SAPROM) in the packet
194    Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
204 	E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory")
206 	E2010-x starts at 0x100 and ends at 0xffff.  */
210 	unsigned long base_addr = dev->base_addr;  in do_ne_probe()
212 	int orig_irq = dev->irq;  in do_ne_probe()
224 		return -ENXIO;  in do_ne_probe()
231 	/* Last resort. The semi-risky ISA auto-probe. */  in do_ne_probe()
234 		dev->irq = orig_irq;  in do_ne_probe()
240 	return -ENODEV;  in do_ne_probe()
267 			dev->base_addr = pnp_port_start(idev, 0);  in ne_probe_isapnp()
268 			dev->irq = pnp_irq(idev, 0);  in ne_probe_isapnp()
272 				    dev->base_addr, dev->irq);  in ne_probe_isapnp()
273 			if (ne_probe1(dev, dev->base_addr) != 0) {	/* Shouldn't happen. */  in ne_probe_isapnp()
276 					   dev->base_addr);  in ne_probe_isapnp()
278 				return -ENXIO;  in ne_probe_isapnp()
288 	return -ENODEV;  in ne_probe_isapnp()
304 		return -EBUSY;  in ne_probe1()
308 		ret = -ENODEV;  in ne_probe1()
323 			ret = -ENODEV;  in ne_probe1()
336 	   with an otherwise unused dev->mem_end value of "0xBAD" will  in ne_probe1()
339 	bad_card = ((dev->base_addr != 0) && (dev->mem_end == BAD));  in ne_probe1()
341 	/* Reset card. Who knows what dain-bramaged state it was left in. */  in ne_probe1()
356 				ret = -ENODEV;  in ne_probe1()
372 			{0x48,	EN0_DCFG},	/* Set byte-wide (0x48) access. */  in ne_probe1()
407 		 * shouldn't exceed 0x60 in 8-bit mode.  in ne_probe1()
409 		 * the  remote byte count registers (otherwise write-only)...  in ne_probe1()
411 		if ((DCR_VAL & 0x01) == 0 &&		/* 8-bit mode */  in ne_probe1()
432 		name = (wordlength == 2) ? "Ctron-8" : "Ctron-16";  in ne_probe1()
460 			ret = -ENXIO;  in ne_probe1()
465 		ret = -ENXIO;  in ne_probe1()
470 	if (dev->irq < 2)  in ne_probe1()
479 		dev->irq = probe_irq_off(cookie);  in ne_probe1()
481 			pr_cont(" autoirq is %d", dev->irq);  in ne_probe1()
482 	} else if (dev->irq == 2)  in ne_probe1()
485 		dev->irq = 9;  in ne_probe1()
487 	if (! dev->irq) {  in ne_probe1()
489 		ret = -EAGAIN;  in ne_probe1()
495 	ret = request_irq(dev->irq, eip_interrupt, 0, name, dev);  in ne_probe1()
497 		pr_cont(" unable to get IRQ %d (errno=%d).\n", dev->irq, ret);  in ne_probe1()
501 	dev->base_addr = ioaddr;  in ne_probe1()
504 		dev->dev_addr[i] = SA_prom[i];  in ne_probe1()
507 	pr_cont("%pM\n", dev->dev_addr);  in ne_probe1()
513 	/* Use 16-bit mode only if this wasn't overridden by DCR_VAL */  in ne_probe1()
518 	 /* Allow the packet buffer size to be overridden by know-it-alls. */  in ne_probe1()
528 	dev->netdev_ops = &eip_netdev_ops;  in ne_probe1()
531 	ei_local->msg_enable = ne_msg_enable;  in ne_probe1()
536 		    name, ioaddr, dev->irq);  in ne_probe1()
540 	free_irq(dev->irq, dev);  in ne_probe1()
577 	int nic_base = dev->base_addr;  in ne_get_8390_hdr()
605 	le16_to_cpus(&hdr->count);  in ne_get_8390_hdr()
610    The NEx000 doesn't share the on-board packet memory -- you have to put
619 	int nic_base = dev->base_addr;  in ne_block_input()
620 	char *buf = skb->data;  in ne_block_input()
642 			buf[count-1] = inb(NE_BASE + NE_DATAPORT);  in ne_block_input()
663 			   -- it's broken for Rx on some cards! */  in ne_block_input()
669 		} while (--tries > 0);  in ne_block_input()
672 				    "%#4.4x (expected) vs. %#4.4x (actual).\n",  in ne_block_input()
714 	/* Handle the read-before-write bug the same way as the  in ne_block_output()
715 	   Crynwr packet driver -- the NatSemi method doesn't work.  in ne_block_output()
759 		} while (--tries > 0);  in ne_block_output()
764 				    "%#4.4x (expected) vs. %#4.4x (actual).\n",  in ne_block_output()
787 	int err, this_dev = pdev->id;  in ne_drv_probe()
792 		return -ENOMEM;  in ne_drv_probe()
800 		dev->base_addr = res->start;  in ne_drv_probe()
801 		dev->irq = platform_get_irq(pdev, 0);  in ne_drv_probe()
805 			return -EINVAL;  in ne_drv_probe()
807 		dev->base_addr = io[this_dev];  in ne_drv_probe()
808 		dev->irq = irq[this_dev];  in ne_drv_probe()
809 		dev->mem_end = bad[this_dev];  in ne_drv_probe()
811 	SET_NETDEV_DEV(dev, &pdev->dev);  in ne_drv_probe()
823 		io[this_dev] = dev->base_addr;  in ne_drv_probe()
824 		irq[this_dev] = dev->irq;  in ne_drv_probe()
844 		free_irq(dev->irq, dev);  in ne_drv_remove()
845 		release_region(dev->base_addr, NE_IO_EXTENT);  in ne_drv_remove()
933 			pr_notice("ne.c: You must supply \"io=0xNNN\""  in init_module()
964 			return ERR_PTR(-ENOMEM);  in ne_probe()
970 		return ERR_PTR(-ENOMEM);  in ne_probe()
972 	sprintf(dev->name, "eth%d", unit);  in ne_probe()
975 	io[this_dev] = dev->base_addr;  in ne_probe()
976 	irq[this_dev] = dev->irq;  in ne_probe()
977 	bad[this_dev] = dev->mem_end;  in ne_probe()
992 	return ERR_PTR(-ENODEV);  in ne_probe()