summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/8390/smc-mca.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/8390/smc-mca.c')
-rw-r--r--drivers/net/ethernet/8390/smc-mca.c576
1 files changed, 576 insertions, 0 deletions
diff --git a/drivers/net/ethernet/8390/smc-mca.c b/drivers/net/ethernet/8390/smc-mca.c
new file mode 100644
index 000000000000..77efec44fea0
--- /dev/null
+++ b/drivers/net/ethernet/8390/smc-mca.c
@@ -0,0 +1,576 @@
+/* smc-mca.c: A SMC Ultra ethernet driver for linux. */
+/*
+ Most of this driver, except for ultramca_probe is nearly
+ verbatim from smc-ultra.c by Donald Becker. The rest is
+ written and copyright 1996 by David Weis, weisd3458@uni.edu
+
+ This is a driver for the SMC Ultra and SMC EtherEZ ethercards.
+
+ This driver uses the cards in the 8390-compatible, shared memory mode.
+ Most of the run-time complexity is handled by the generic code in
+ 8390.c.
+
+ This driver enables the shared memory only when doing the actual data
+ transfers to avoid a bug in early version of the card that corrupted
+ data transferred by a AHA1542.
+
+ This driver does not support the programmed-I/O data transfer mode of
+ the EtherEZ. That support (if available) is smc-ez.c. Nor does it
+ use the non-8390-compatible "Altego" mode. (No support currently planned.)
+
+ Changelog:
+
+ Paul Gortmaker : multiple card support for module users.
+ David Weis : Micro Channel-ized it.
+ Tom Sightler : Added support for IBM PS/2 Ethernet Adapter/A
+ Christopher Turcksin : Changed MCA-probe so that multiple adapters are
+ found correctly (Jul 16, 1997)
+ Chris Beauregard : Tried to merge the two changes above (Dec 15, 1997)
+ Tom Sightler : Fixed minor detection bug caused by above merge
+ Tom Sightler : Added support for three more Western Digital
+ MCA-adapters
+ Tom Sightler : Added support for 2.2.x mca_find_unused_adapter
+ Hartmut Schmidt : - Modified parameter detection to handle each
+ card differently depending on a switch-list
+ - 'card_ver' removed from the adapter list
+ - Some minor bug fixes
+*/
+
+#include <linux/mca.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include "8390.h"
+
+#define DRV_NAME "smc-mca"
+
+static int ultramca_open(struct net_device *dev);
+static void ultramca_reset_8390(struct net_device *dev);
+static void ultramca_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr,
+ int ring_page);
+static void ultramca_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb,
+ int ring_offset);
+static void ultramca_block_output(struct net_device *dev, int count,
+ const unsigned char *buf,
+ const int start_page);
+static int ultramca_close_card(struct net_device *dev);
+
+#define START_PG 0x00 /* First page of TX buffer */
+
+#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */
+#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */
+#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */
+#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */
+#define ULTRA_IO_EXTENT 32
+#define EN0_ERWCNT 0x08 /* Early receive warning count. */
+
+#define _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A 0
+#define _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A 1
+#define _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A 2
+#define _6fc1_WD_Starcard_PLUS_A_WD8003ST_A 3
+#define _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A 4
+#define _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A 5
+#define _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A 6
+#define _efe5_IBM_PS2_Adapter_A_for_Ethernet 7
+
+struct smc_mca_adapters_t {
+ unsigned int id;
+ char *name;
+};
+
+#define MAX_ULTRAMCA_CARDS 4 /* Max number of Ultra cards per module */
+
+static int ultra_io[MAX_ULTRAMCA_CARDS];
+static int ultra_irq[MAX_ULTRAMCA_CARDS];
+MODULE_LICENSE("GPL");
+
+module_param_array(ultra_io, int, NULL, 0);
+module_param_array(ultra_irq, int, NULL, 0);
+MODULE_PARM_DESC(ultra_io, "SMC Ultra/EtherEZ MCA I/O base address(es)");
+MODULE_PARM_DESC(ultra_irq, "SMC Ultra/EtherEZ MCA IRQ number(s)");
+
+static const struct {
+ unsigned int base_addr;
+} addr_table[] = {
+ { 0x0800 },
+ { 0x1800 },
+ { 0x2800 },
+ { 0x3800 },
+ { 0x4800 },
+ { 0x5800 },
+ { 0x6800 },
+ { 0x7800 },
+ { 0x8800 },
+ { 0x9800 },
+ { 0xa800 },
+ { 0xb800 },
+ { 0xc800 },
+ { 0xd800 },
+ { 0xe800 },
+ { 0xf800 }
+};
+
+#define MEM_MASK 64
+
+static const struct {
+ unsigned char mem_index;
+ unsigned long mem_start;
+ unsigned char num_pages;
+} mem_table[] = {
+ { 16, 0x0c0000, 40 },
+ { 18, 0x0c4000, 40 },
+ { 20, 0x0c8000, 40 },
+ { 22, 0x0cc000, 40 },
+ { 24, 0x0d0000, 40 },
+ { 26, 0x0d4000, 40 },
+ { 28, 0x0d8000, 40 },
+ { 30, 0x0dc000, 40 },
+ {144, 0xfc0000, 40 },
+ {148, 0xfc8000, 40 },
+ {154, 0xfd0000, 40 },
+ {156, 0xfd8000, 40 },
+ { 0, 0x0c0000, 20 },
+ { 1, 0x0c2000, 20 },
+ { 2, 0x0c4000, 20 },
+ { 3, 0x0c6000, 20 }
+};
+
+#define IRQ_MASK 243
+static const struct {
+ unsigned char new_irq;
+ unsigned char old_irq;
+} irq_table[] = {
+ { 3, 3 },
+ { 4, 4 },
+ { 10, 10 },
+ { 14, 15 }
+};
+
+static short smc_mca_adapter_ids[] __initdata = {
+ 0x61c8,
+ 0x61c9,
+ 0x6fc0,
+ 0x6fc1,
+ 0x6fc2,
+ 0xefd4,
+ 0xefd5,
+ 0xefe5,
+ 0x0000
+};
+
+static char *smc_mca_adapter_names[] __initdata = {
+ "SMC Ethercard PLUS Elite/A BNC/AUI (WD8013EP/A)",
+ "SMC Ethercard PLUS Elite/A UTP/AUI (WD8013WP/A)",
+ "WD Ethercard PLUS/A (WD8003E/A or WD8003ET/A)",
+ "WD Starcard PLUS/A (WD8003ST/A)",
+ "WD Ethercard PLUS 10T/A (WD8003W/A)",
+ "IBM PS/2 Adapter/A for Ethernet UTP/AUI (WD8013WP/A)",
+ "IBM PS/2 Adapter/A for Ethernet BNC/AUI (WD8013EP/A)",
+ "IBM PS/2 Adapter/A for Ethernet",
+ NULL
+};
+
+static int ultra_found = 0;
+
+
+static const struct net_device_ops ultramca_netdev_ops = {
+ .ndo_open = ultramca_open,
+ .ndo_stop = ultramca_close_card,
+
+ .ndo_start_xmit = ei_start_xmit,
+ .ndo_tx_timeout = ei_tx_timeout,
+ .ndo_get_stats = ei_get_stats,
+ .ndo_set_rx_mode = ei_set_multicast_list,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_change_mtu = eth_change_mtu,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = ei_poll,
+#endif
+};
+
+static int __init ultramca_probe(struct device *gen_dev)
+{
+ unsigned short ioaddr;
+ struct net_device *dev;
+ unsigned char reg4, num_pages;
+ struct mca_device *mca_dev = to_mca_device(gen_dev);
+ char slot = mca_dev->slot;
+ unsigned char pos2 = 0xff, pos3 = 0xff, pos4 = 0xff, pos5 = 0xff;
+ int i, rc;
+ int adapter = mca_dev->index;
+ int tbase = 0;
+ int tirq = 0;
+ int base_addr = ultra_io[ultra_found];
+ int irq = ultra_irq[ultra_found];
+
+ if (base_addr || irq) {
+ printk(KERN_INFO "Probing for SMC MCA adapter");
+ if (base_addr) {
+ printk(KERN_INFO " at I/O address 0x%04x%c",
+ base_addr, irq ? ' ' : '\n');
+ }
+ if (irq) {
+ printk(KERN_INFO "using irq %d\n", irq);
+ }
+ }
+
+ tirq = 0;
+ tbase = 0;
+
+ /* If we're trying to match a specificied irq or io address,
+ * we'll reject the adapter found unless it's the one we're
+ * looking for */
+
+ pos2 = mca_device_read_stored_pos(mca_dev, 2); /* io_addr */
+ pos3 = mca_device_read_stored_pos(mca_dev, 3); /* shared mem */
+ pos4 = mca_device_read_stored_pos(mca_dev, 4); /* ROM bios addr range */
+ pos5 = mca_device_read_stored_pos(mca_dev, 5); /* irq, media and RIPL */
+
+ /* Test the following conditions:
+ * - If an irq parameter is supplied, compare it
+ * with the irq of the adapter we found
+ * - If a base_addr paramater is given, compare it
+ * with the base_addr of the adapter we found
+ * - Check that the irq and the base_addr of the
+ * adapter we found is not already in use by
+ * this driver
+ */
+
+ switch (mca_dev->index) {
+ case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A:
+ case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A:
+ case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A:
+ case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A:
+ {
+ tbase = addr_table[(pos2 & 0xf0) >> 4].base_addr;
+ tirq = irq_table[(pos5 & 0xc) >> 2].new_irq;
+ break;
+ }
+ case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A:
+ case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A:
+ case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A:
+ case _efe5_IBM_PS2_Adapter_A_for_Ethernet:
+ {
+ tbase = ((pos2 & 0x0fe) * 0x10);
+ tirq = irq_table[(pos5 & 3)].old_irq;
+ break;
+ }
+ }
+
+ if(!tirq || !tbase ||
+ (irq && irq != tirq) ||
+ (base_addr && tbase != base_addr))
+ /* FIXME: we're trying to force the ordering of the
+ * devices here, there should be a way of getting this
+ * to happen */
+ return -ENXIO;
+
+ /* Adapter found. */
+ dev = alloc_ei_netdev();
+ if(!dev)
+ return -ENODEV;
+
+ SET_NETDEV_DEV(dev, gen_dev);
+ mca_device_set_name(mca_dev, smc_mca_adapter_names[adapter]);
+ mca_device_set_claim(mca_dev, 1);
+
+ printk(KERN_INFO "smc_mca: %s found in slot %d\n",
+ smc_mca_adapter_names[adapter], slot + 1);
+
+ ultra_found++;
+
+ dev->base_addr = ioaddr = mca_device_transform_ioport(mca_dev, tbase);
+ dev->irq = mca_device_transform_irq(mca_dev, tirq);
+ dev->mem_start = 0;
+ num_pages = 40;
+
+ switch (adapter) { /* card-# in const array above [hs] */
+ case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A:
+ case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A:
+ {
+ for (i = 0; i < 16; i++) { /* taking 16 counts
+ * up to 15 [hs] */
+ if (mem_table[i].mem_index == (pos3 & ~MEM_MASK)) {
+ dev->mem_start = (unsigned long)
+ mca_device_transform_memory(mca_dev, (void *)mem_table[i].mem_start);
+ num_pages = mem_table[i].num_pages;
+ }
+ }
+ break;
+ }
+ case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A:
+ case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A:
+ case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A:
+ case _efe5_IBM_PS2_Adapter_A_for_Ethernet:
+ {
+ dev->mem_start = (unsigned long)
+ mca_device_transform_memory(mca_dev, (void *)((pos3 & 0xfc) * 0x1000));
+ num_pages = 0x40;
+ break;
+ }
+ case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A:
+ case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A:
+ {
+ /* courtesy of gamera@quartz.ocn.ne.jp, pos3 indicates
+ * the index of the 0x2000 step.
+ * beware different number of pages [hs]
+ */
+ dev->mem_start = (unsigned long)
+ mca_device_transform_memory(mca_dev, (void *)(0xc0000 + (0x2000 * (pos3 & 0xf))));
+ num_pages = 0x20 + (2 * (pos3 & 0x10));
+ break;
+ }
+ }
+
+ /* sanity check, shouldn't happen */
+ if (dev->mem_start == 0) {
+ rc = -ENODEV;
+ goto err_unclaim;
+ }
+
+ if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME)) {
+ rc = -ENODEV;
+ goto err_unclaim;
+ }
+
+ reg4 = inb(ioaddr + 4) & 0x7f;
+ outb(reg4, ioaddr + 4);
+
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = inb(ioaddr + 8 + i);
+
+ printk(KERN_INFO "smc_mca[%d]: Parameters: %#3x, %pM",
+ slot + 1, ioaddr, dev->dev_addr);
+
+ /* Switch from the station address to the alternate register set
+ * and read the useful registers there.
+ */
+
+ outb(0x80 | reg4, ioaddr + 4);
+
+ /* Enable FINE16 mode to avoid BIOS ROM width mismatches @ reboot.
+ */
+
+ outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
+
+ /* Switch back to the station address register set so that
+ * the MS-DOS driver can find the card after a warm boot.
+ */
+
+ outb(reg4, ioaddr + 4);
+
+ dev_set_drvdata(gen_dev, dev);
+
+ /* The 8390 isn't at the base address, so fake the offset
+ */
+
+ dev->base_addr = ioaddr + ULTRA_NIC_OFFSET;
+
+ ei_status.name = "SMC Ultra MCA";
+ ei_status.word16 = 1;
+ ei_status.tx_start_page = START_PG;
+ ei_status.rx_start_page = START_PG + TX_PAGES;
+ ei_status.stop_page = num_pages;
+
+ ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG) * 256);
+ if (!ei_status.mem) {
+ rc = -ENOMEM;
+ goto err_release_region;
+ }
+
+ dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG) * 256;
+
+ printk(", IRQ %d memory %#lx-%#lx.\n",
+ dev->irq, dev->mem_start, dev->mem_end - 1);
+
+ ei_status.reset_8390 = &ultramca_reset_8390;
+ ei_status.block_input = &ultramca_block_input;
+ ei_status.block_output = &ultramca_block_output;
+ ei_status.get_8390_hdr = &ultramca_get_8390_hdr;
+
+ ei_status.priv = slot;
+
+ dev->netdev_ops = &ultramca_netdev_ops;
+
+ NS8390_init(dev, 0);
+
+ rc = register_netdev(dev);
+ if (rc)
+ goto err_unmap;
+
+ return 0;
+
+err_unmap:
+ iounmap(ei_status.mem);
+err_release_region:
+ release_region(ioaddr, ULTRA_IO_EXTENT);
+err_unclaim:
+ mca_device_set_claim(mca_dev, 0);
+ free_netdev(dev);
+ return rc;
+}
+
+static int ultramca_open(struct net_device *dev)
+{
+ int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
+ int retval;
+
+ if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev)))
+ return retval;
+
+ outb(ULTRA_MEMENB, ioaddr); /* Enable memory */
+ outb(0x80, ioaddr + 5); /* ??? */
+ outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
+ outb(0x04, ioaddr + 5); /* ??? */
+
+ /* Set the early receive warning level in window 0 high enough not
+ * to receive ERW interrupts.
+ */
+
+ /* outb_p(E8390_NODMA + E8390_PAGE0, dev->base_addr);
+ * outb(0xff, dev->base_addr + EN0_ERWCNT);
+ */
+
+ ei_open(dev);
+ return 0;
+}
+
+static void ultramca_reset_8390(struct net_device *dev)
+{
+ int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
+
+ outb(ULTRA_RESET, ioaddr);
+ if (ei_debug > 1)
+ printk("resetting Ultra, t=%ld...", jiffies);
+ ei_status.txing = 0;
+
+ outb(0x80, ioaddr + 5); /* ??? */
+ outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
+
+ if (ei_debug > 1)
+ printk("reset done\n");
+}
+
+/* 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 ultramca_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+{
+ void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG) << 8);
+
+#ifdef notdef
+ /* Officially this is what we are doing, but the readl() is faster */
+ memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
+#else
+ ((unsigned int*)hdr)[0] = readl(hdr_start);
+#endif
+}
+
+/* Block input and output are easy on shared memory ethercards, the only
+ * complication is when the ring buffer wraps.
+ */
+
+static void ultramca_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
+{
+ void __iomem *xfer_start = ei_status.mem + ring_offset - START_PG * 256;
+
+ if (ring_offset + count > ei_status.stop_page * 256) {
+ /* We must wrap the input move. */
+ int semi_count = ei_status.stop_page * 256 - ring_offset;
+ memcpy_fromio(skb->data, xfer_start, semi_count);
+ count -= semi_count;
+ memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
+ } else {
+ memcpy_fromio(skb->data, xfer_start, count);
+ }
+
+}
+
+static void ultramca_block_output(struct net_device *dev, int count, const unsigned char *buf,
+ int start_page)
+{
+ void __iomem *shmem = ei_status.mem + ((start_page - START_PG) << 8);
+
+ memcpy_toio(shmem, buf, count);
+}
+
+static int ultramca_close_card(struct net_device *dev)
+{
+ int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
+
+ netif_stop_queue(dev);
+
+ if (ei_debug > 1)
+ printk("%s: Shutting down ethercard.\n", dev->name);
+
+ outb(0x00, ioaddr + 6); /* Disable interrupts. */
+ free_irq(dev->irq, dev);
+
+ NS8390_init(dev, 0);
+ /* We should someday disable shared memory and change to 8-bit mode
+ * "just in case"...
+ */
+
+ return 0;
+}
+
+static int ultramca_remove(struct device *gen_dev)
+{
+ struct mca_device *mca_dev = to_mca_device(gen_dev);
+ struct net_device *dev = dev_get_drvdata(gen_dev);
+
+ if (dev) {
+ /* NB: ultra_close_card() does free_irq */
+ int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET;
+
+ unregister_netdev(dev);
+ mca_device_set_claim(mca_dev, 0);
+ release_region(ioaddr, ULTRA_IO_EXTENT);
+ iounmap(ei_status.mem);
+ free_netdev(dev);
+ }
+ return 0;
+}
+
+
+static struct mca_driver ultra_driver = {
+ .id_table = smc_mca_adapter_ids,
+ .driver = {
+ .name = "smc-mca",
+ .bus = &mca_bus_type,
+ .probe = ultramca_probe,
+ .remove = ultramca_remove,
+ }
+};
+
+static int __init ultramca_init_module(void)
+{
+ if(!MCA_bus)
+ return -ENXIO;
+
+ mca_register_driver(&ultra_driver);
+
+ return ultra_found ? 0 : -ENXIO;
+}
+
+static void __exit ultramca_cleanup_module(void)
+{
+ mca_unregister_driver(&ultra_driver);
+}
+module_init(ultramca_init_module);
+module_exit(ultramca_cleanup_module);
+
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 23:41:13 +0300