patch-2.3.18 linux/drivers/net/pcmcia/pcnet_cs.c
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- Lines: 1360
- Date:
Thu Sep 9 17:10:21 1999
- Orig file:
v2.3.17/linux/drivers/net/pcmcia/pcnet_cs.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.3.17/linux/drivers/net/pcmcia/pcnet_cs.c linux/drivers/net/pcmcia/pcnet_cs.c
@@ -0,0 +1,1359 @@
+/*======================================================================
+
+ A PCMCIA ethernet driver for NS8390-based cards
+
+ This driver supports the D-Link DE-650 and Linksys EthernetCard
+ cards, the newer D-Link and Linksys combo cards, Accton EN2212
+ cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory
+ mode, and the IBM Credit Card Adapter, the NE4100, the Thomas
+ Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory
+ mode. It will also handle the Socket EA card in either mode.
+
+ Copyright (C) 1998 David A. Hinds -- dhinds@hyper.stanford.edu
+
+ pcnet_cs.c 1.94 1999/07/29 06:04:49
+
+ The network driver code is based on Donald Becker's NE2000 code:
+
+ Written 1992,1993 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 Public License,
+ incorporated herein by reference.
+ Donald Becker may be reached at becker@cesdis1.gsfc.nasa.gov
+
+ Based also on Keith Moore's changes to Don Becker's code, for IBM
+ CCAE support. Drivers merged back together, and shared-memory
+ Socket EA support added, by Ken Raeburn, September 1995.
+
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/malloc.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include <linux/netdevice.h>
+#include "../../drivers/net/8390.h"
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#define PCNET_CMD 0x00
+#define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
+#define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
+#define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
+
+#define PCNET_START_PG 0x40 /* First page of TX buffer */
+#define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */
+
+/* Socket EA cards have a larger packet buffer */
+#define SOCKET_START_PG 0x01
+#define SOCKET_STOP_PG 0xff
+
+#define PCNET_RDC_TIMEOUT 0x02 /* Max wait in jiffies for Tx RDC */
+
+static char *if_names[] = { "auto", "10baseT", "10base2"};
+
+#define PCMCIA_DEBUG 6
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+MODULE_PARM(pc_debug, "i");
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version =
+"pcnet_cs.c 1.94 1999/07/29 06:04:49 (David Hinds)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+/* Bit map of interrupts to choose from */
+static u_int irq_mask = 0xdeb8;
+static int irq_list[4] = { -1 };
+
+/* Transceiver type, for Socket EA and IBM CC cards. */
+static int if_port = 1;
+
+/* Use 64K packet buffer, for Socket EA cards. */
+static int use_big_buf = 1;
+
+/* Shared memory speed, in ns */
+static int mem_speed = 0;
+
+/* Insert a pause in block_output after sending a packet */
+static int delay_output = 0;
+
+/* Length of delay, in microseconds */
+static int delay_time = 4;
+
+/* Use shared memory, if available? */
+static int use_shmem = -1;
+
+/* Ugh! Let the user hardwire the hardware address for queer cards */
+static int hw_addr[6] = { 0, /* ... */ };
+
+MODULE_PARM(irq_mask, "i");
+MODULE_PARM(irq_list, "1-4i");
+MODULE_PARM(if_port, "i");
+MODULE_PARM(use_big_buf, "i");
+MODULE_PARM(mem_speed, "i");
+MODULE_PARM(delay_output, "i");
+MODULE_PARM(delay_time, "i");
+MODULE_PARM(use_shmem, "i");
+MODULE_PARM(hw_addr, "6i");
+
+/*====================================================================*/
+
+static void pcnet_config(dev_link_t *link);
+static void pcnet_release(u_long arg);
+static int pcnet_event(event_t event, int priority,
+ event_callback_args_t *args);
+
+static int pcnet_open(struct net_device *dev);
+static int pcnet_close(struct net_device *dev);
+
+static void pcnet_reset_8390(struct net_device *dev);
+
+static int set_config(struct net_device *dev, struct ifmap *map);
+
+static int setup_shmem_window(dev_link_t *link, int start_pg,
+ int stop_pg, int cm_offset);
+static int setup_dma_config(dev_link_t *link, int start_pg,
+ int stop_pg);
+
+static dev_info_t dev_info = "pcnet_cs";
+
+static dev_link_t *pcnet_attach(void);
+static void pcnet_detach(dev_link_t *);
+
+static dev_link_t *dev_list;
+
+/*====================================================================*/
+
+typedef struct hw_info_t {
+ u_long offset;
+ u_char a0, a1, a2;
+ u_long flags;
+} hw_info_t;
+
+#define DELAY_OUTPUT 0x01
+#define HAS_MISC_REG 0x02
+#define USE_BIG_BUF 0x04
+#define HAS_IBM_MISC 0x08
+#define IS_DL10019A 0x10
+#define USE_SHMEM 0x80 /* autodetected */
+
+static hw_info_t hw_info[] = {
+ { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
+ { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
+ { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
+ { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
+ DELAY_OUTPUT | HAS_IBM_MISC },
+ { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
+ { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
+ { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
+ { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
+ { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
+ { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
+ { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
+ { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
+ { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
+ { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
+ { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
+ { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
+ { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
+ { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
+ { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
+ HAS_MISC_REG | HAS_IBM_MISC },
+ { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
+ { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
+ { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
+ { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
+ DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
+ { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
+ { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 }
+};
+
+#define NR_INFO (sizeof(hw_info)/sizeof(hw_info_t))
+
+static hw_info_t default_info =
+{ /* Unknown NE2000 Clone */ 0x00, 0x00, 0x00, 0x00, 0 };
+static hw_info_t dl_fast_info =
+{ /* D-Link EtherFast */ 0x00, 0x00, 0x00, 0x00, IS_DL10019A };
+
+typedef struct pcnet_dev_t {
+ struct net_device dev;
+ dev_node_t node;
+ u_long flags;
+ caddr_t base;
+} pcnet_dev_t;
+
+/*======================================================================
+
+ This bit of code is used to avoid unregistering network devices
+ at inappropriate times. 2.2 and later kernels are fairly picky
+ about when this can happen.
+
+======================================================================*/
+
+static void flush_stale_links(void)
+{
+ dev_link_t *link, *next;
+ for (link = dev_list; link; link = next) {
+ next = link->next;
+ if (link->state & DEV_STALE_LINK)
+ pcnet_detach(link);
+ }
+}
+
+/*====================================================================*/
+
+static void cs_error(client_handle_t handle, int func, int ret)
+{
+ error_info_t err = { func, ret };
+ CardServices(ReportError, handle, &err);
+}
+
+/*======================================================================
+
+ We never need to do anything when a pcnet device is "initialized"
+ by the net software, because we only register already-found cards.
+
+======================================================================*/
+
+static int pcnet_init(struct net_device *dev)
+{
+ return 0;
+}
+
+/*======================================================================
+
+ pcnet_attach() creates an "instance" of the driver, allocating
+ local data structures for one device. The device is registered
+ with Card Services.
+
+======================================================================*/
+
+static dev_link_t *pcnet_attach(void)
+{
+ client_reg_t client_reg;
+ dev_link_t *link;
+ pcnet_dev_t *info;
+ struct net_device *dev;
+ int i, ret;
+
+ DEBUG(0, "pcnet_attach()\n");
+ flush_stale_links();
+
+ /* Create new ethernet device */
+ link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
+ memset(link, 0, sizeof(struct dev_link_t));
+ link->release.function = &pcnet_release;
+ link->release.data = (u_long)link;
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
+ if (irq_list[0] == -1)
+ link->irq.IRQInfo2 = irq_mask;
+ else
+ for (i = 0; i < 4; i++)
+ link->irq.IRQInfo2 |= 1 << irq_list[i];
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+
+ info = kmalloc(sizeof(struct pcnet_dev_t), GFP_KERNEL);
+ memset(info, 0, sizeof(struct pcnet_dev_t));
+ dev = &info->dev;
+ ethdev_init(dev);
+ dev->name = info->node.dev_name;
+ dev->init = &pcnet_init;
+ dev->open = &pcnet_open;
+ dev->stop = &pcnet_close;
+ dev->set_config = &set_config;
+ dev->tbusy = 1;
+ link->priv = info;
+
+ /* Register with Card Services */
+ link->next = dev_list;
+ dev_list = link;
+ client_reg.dev_info = &dev_info;
+ client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+ client_reg.EventMask =
+ CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+ CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+ client_reg.event_handler = &pcnet_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+ ret = CardServices(RegisterClient, &link->handle, &client_reg);
+ if (ret != CS_SUCCESS) {
+ cs_error(link->handle, RegisterClient, ret);
+ pcnet_detach(link);
+ return NULL;
+ }
+
+ return link;
+} /* pcnet_attach */
+
+/*======================================================================
+
+ This deletes a driver "instance". The device is de-registered
+ with Card Services. If it has been released, all local data
+ structures are freed. Otherwise, the structures will be freed
+ when the device is released.
+
+======================================================================*/
+
+static void pcnet_detach(dev_link_t *link)
+{
+ dev_link_t **linkp;
+ long flags;
+
+ DEBUG(0, "pcnet_detach(0x%p)\n", link);
+
+ /* Locate device structure */
+ for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+ if (*linkp == link) break;
+ if (*linkp == NULL)
+ return;
+
+ save_flags(flags);
+ cli();
+ if (link->state & DEV_RELEASE_PENDING) {
+ del_timer(&link->release);
+ link->state &= ~DEV_RELEASE_PENDING;
+ }
+ restore_flags(flags);
+
+ if (link->state & DEV_CONFIG) {
+ pcnet_release((u_long)link);
+ if (link->state & DEV_STALE_CONFIG) {
+ link->state |= DEV_STALE_LINK;
+ return;
+ }
+ }
+
+ if (link->handle)
+ CardServices(DeregisterClient, link->handle);
+
+ /* Unlink device structure, free bits */
+ *linkp = link->next;
+ if (link->priv) {
+ struct net_device *dev = link->priv;
+ if (link->dev != NULL)
+ unregister_netdev(dev);
+ if (dev->priv)
+ kfree_s(dev->priv, sizeof(struct ei_device));
+ kfree_s(dev, sizeof(struct pcnet_dev_t));
+ }
+ kfree_s(link, sizeof(struct dev_link_t));
+
+} /* pcnet_detach */
+
+/*======================================================================
+
+ For the Linksys EtherFast 10/100 card
+
+======================================================================*/
+
+static hw_info_t *get_dl_fast(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ int i;
+ u_char sum;
+
+ for (sum = 0, i = 0x14; i < 0x1c; i++)
+ sum += inb_p(dev->base_addr + i);
+ if (sum != 0xff)
+ return NULL;
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = inb_p(dev->base_addr + 0x14 + i);
+ return &dl_fast_info;
+}
+
+/*======================================================================
+
+ This probes for a card's hardware address, for card types that
+ encode this information in their CIS.
+
+======================================================================*/
+
+static hw_info_t *get_hwinfo(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ win_req_t req;
+ memreq_t mem;
+ u_char *base, *virt;
+ int i, j;
+
+ /* Allocate a small memory window */
+ req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
+ req.Base = 0; req.Size = 0;
+ req.AccessSpeed = 0;
+ link->win = (window_handle_t)link->handle;
+ i = CardServices(RequestWindow, &link->win, &req);
+ if (i != CS_SUCCESS) {
+ cs_error(link->handle, RequestWindow, i);
+ return NULL;
+ }
+
+ virt = ioremap(req.Base, req.Size);
+ mem.Page = 0;
+ for (i = 0; i < NR_INFO; i++) {
+ mem.CardOffset = hw_info[i].offset & ~(req.Size-1);
+ CardServices(MapMemPage, link->win, &mem);
+ base = &virt[hw_info[i].offset & (req.Size-1)];
+ if ((readb(base+0) == hw_info[i].a0) &&
+ (readb(base+2) == hw_info[i].a1) &&
+ (readb(base+4) == hw_info[i].a2))
+ break;
+ }
+ if (i < NR_INFO) {
+ for (j = 0; j < 6; j++)
+ dev->dev_addr[j] = readb(base + (j<<1));
+ }
+
+ iounmap(virt);
+ j = CardServices(ReleaseWindow, link->win);
+ if (j != CS_SUCCESS)
+ cs_error(link->handle, ReleaseWindow, j);
+ return (i < NR_INFO) ? hw_info+i : NULL;
+} /* get_hwinfo */
+
+/*======================================================================
+
+ This probes for a card's hardware address by reading the PROM.
+ It checks the address against a list of known types, then falls
+ back to a simple NE2000 clone signature check.
+
+======================================================================*/
+
+static hw_info_t *get_prom(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ unsigned char prom[32];
+ int i, j, ioaddr;
+
+ /* This is lifted straight from drivers/net/ne.c */
+ 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},
+ };
+
+ ioaddr = dev->base_addr;
+
+ pcnet_reset_8390(dev);
+ udelay(10000);
+
+ 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; i++)
+ prom[i] = inb(ioaddr + PCNET_DATAPORT);
+ for (i = 0; i < NR_INFO; i++) {
+ if ((prom[0] == hw_info[i].a0) &&
+ (prom[2] == hw_info[i].a1) &&
+ (prom[4] == hw_info[i].a2))
+ break;
+ }
+ if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
+ for (j = 0; j < 6; j++)
+ dev->dev_addr[j] = prom[j<<1];
+ return (i < NR_INFO) ? hw_info+i : &default_info;
+ }
+ return NULL;
+} /* get_prom */
+
+/*======================================================================
+
+ This should be totally unnecessary... but when we can't figure
+ out the hardware address any other way, we'll let the user hard
+ wire it when the module is initialized.
+
+======================================================================*/
+
+static hw_info_t *get_hwired(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ int i;
+
+ for (i = 0; i < 6; i++)
+ if (hw_addr[i] != 0) break;
+ if (i == 6)
+ return NULL;
+
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = hw_addr[i];
+
+ return &default_info;
+} /* get_hwired */
+
+/*======================================================================
+
+ pcnet_config() is scheduled to run after a CARD_INSERTION event
+ is received, to configure the PCMCIA socket, and to make the
+ ethernet device available to the system.
+
+======================================================================*/
+
+#define CS_CHECK(fn, args...) \
+while ((last_ret=CardServices(last_fn=(fn), args))!=0) goto cs_failed
+
+#define CFG_CHECK(fn, args...) \
+if (CardServices(fn, args) != 0) goto next_entry
+
+static int try_io_port(dev_link_t *link)
+{
+ int j, ret;
+ if (link->io.NumPorts1 == 32) {
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ if (link->io.NumPorts2 > 0) {
+ /* for master/slave multifunction cards */
+ link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
+ link->irq.Attributes =
+ IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
+ }
+ } else {
+ /* This should be two 16-port windows */
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ link->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
+ }
+ if (link->io.BasePort1 == 0) {
+ for (j = 0; j < 0x400; j += 0x20) {
+ link->io.BasePort1 = j ^ 0x300;
+ link->io.BasePort2 = (j ^ 0x300) + 0x10;
+ ret = CardServices(RequestIO, link->handle, &link->io);
+ if (ret == CS_SUCCESS) return ret;
+ }
+ return ret;
+ } else {
+ return CardServices(RequestIO, link->handle, &link->io);
+ }
+}
+
+static void pcnet_config(dev_link_t *link)
+{
+ client_handle_t handle;
+ tuple_t tuple;
+ cisparse_t parse;
+ pcnet_dev_t *info;
+ struct net_device *dev;
+ int i, last_ret, last_fn, start_pg, stop_pg, cm_offset;
+ int manfid = 0, prodid = 0, has_shmem = 0;
+ u_short buf[64];
+ hw_info_t *hw_info;
+
+ handle = link->handle;
+ info = link->priv;
+ dev = &info->dev;
+
+ DEBUG(0, "pcnet_config(0x%p)\n", link);
+
+ tuple.Attributes = 0;
+ tuple.TupleData = (cisdata_t *)buf;
+ tuple.TupleDataMax = sizeof(buf);
+ tuple.TupleOffset = 0;
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ CS_CHECK(GetFirstTuple, handle, &tuple);
+ CS_CHECK(GetTupleData, handle, &tuple);
+ CS_CHECK(ParseTuple, handle, &tuple, &parse);
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+
+ tuple.DesiredTuple = CISTPL_MANFID;
+ tuple.Attributes = TUPLE_RETURN_COMMON;
+ if ((CardServices(GetFirstTuple, handle, &tuple) == CS_SUCCESS) &&
+ (CardServices(GetTupleData, handle, &tuple) == CS_SUCCESS)) {
+ manfid = le16_to_cpu(buf[0]);
+ prodid = le16_to_cpu(buf[1]);
+ }
+
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ tuple.Attributes = 0;
+ CS_CHECK(GetFirstTuple, handle, &tuple);
+ while (last_ret == CS_SUCCESS) {
+ cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
+ cistpl_io_t *io = &(parse.cftable_entry.io);
+
+ CFG_CHECK(GetTupleData, handle, &tuple);
+ CFG_CHECK(ParseTuple, handle, &tuple, &parse);
+ if ((cfg->index == 0) || (cfg->io.nwin == 0))
+ goto next_entry;
+
+ link->conf.ConfigIndex = cfg->index;
+ /* For multifunction cards, by convention, we configure the
+ network function with window 0, and serial with window 1 */
+ if (io->nwin > 1) {
+ i = (io->win[1].len > io->win[0].len);
+ link->io.BasePort2 = io->win[1-i].base;
+ link->io.NumPorts2 = io->win[1-i].len;
+ } else {
+ i = link->io.NumPorts2 = 0;
+ }
+ has_shmem = ((cfg->mem.nwin == 1) &&
+ (cfg->mem.win[0].len >= 0x4000));
+ link->io.BasePort1 = io->win[i].base;
+ link->io.NumPorts1 = io->win[i].len;
+ if (link->io.NumPorts1 + link->io.NumPorts2 >= 32) {
+ last_ret = try_io_port(link);
+ if (last_ret == CS_SUCCESS) break;
+ }
+ next_entry:
+ last_ret = CardServices(GetNextTuple, handle, &tuple);
+ }
+ if (last_ret != CS_SUCCESS) {
+ cs_error(handle, RequestIO, last_ret);
+ goto failed;
+ }
+
+ CS_CHECK(RequestIRQ, handle, &link->irq);
+
+ if (link->io.NumPorts2 == 8) {
+ link->conf.Attributes |= CONF_ENABLE_SPKR;
+ link->conf.Status = CCSR_AUDIO_ENA;
+ }
+ if ((manfid == MANFID_IBM) &&
+ (prodid == PRODID_IBM_HOME_AND_AWAY))
+ link->conf.ConfigIndex |= 0x10;
+
+ CS_CHECK(RequestConfiguration, handle, &link->conf);
+ dev->irq = link->irq.AssignedIRQ;
+ dev->base_addr = link->io.BasePort1;
+ if ((if_port == 1) || (if_port == 2))
+ dev->if_port = if_port;
+ else
+ printk(KERN_NOTICE "pcnet_cs: invalid if_port requested\n");
+ dev->tbusy = 0;
+ if (register_netdev(dev) != 0) {
+ printk(KERN_NOTICE "pcnet_cs: register_netdev() failed\n");
+ goto failed;
+ }
+
+ hw_info = get_hwinfo(link);
+ if (hw_info == NULL)
+ hw_info = get_prom(link);
+ if (hw_info == NULL)
+ hw_info = get_dl_fast(link);
+ if (hw_info == NULL)
+ hw_info = get_hwired(link);
+
+ if (hw_info == NULL) {
+ printk(KERN_NOTICE "pcnet_cs: unable to read hardware net address\n");
+ goto config_undo;
+ }
+
+ info->flags = hw_info->flags;
+ /* Check for user overrides */
+ info->flags |= (delay_output) ? DELAY_OUTPUT : 0;
+ if ((manfid == MANFID_SOCKET) && (prodid == PRODID_SOCKET_LPE))
+ info->flags &= ~USE_BIG_BUF;
+ if (!use_big_buf)
+ info->flags &= ~USE_BIG_BUF;
+
+ if (info->flags & USE_BIG_BUF) {
+ start_pg = SOCKET_START_PG;
+ stop_pg = SOCKET_STOP_PG;
+ cm_offset = 0x10000;
+ } else {
+ start_pg = PCNET_START_PG;
+ stop_pg = PCNET_STOP_PG;
+ cm_offset = 0;
+ }
+
+ /* has_shmem is ignored if use_shmem != -1 */
+ if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) ||
+ (setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0))
+ setup_dma_config(link, start_pg, stop_pg);
+
+ ei_status.name = "NE2000";
+ ei_status.word16 = 1;
+ ei_status.reset_8390 = &pcnet_reset_8390;
+
+ link->dev = &info->node;
+ link->state &= ~DEV_CONFIG_PENDING;
+
+ printk(KERN_INFO "%s: NE2000 Compatible: io %#3lx, irq %d,",
+ dev->name, dev->base_addr, dev->irq);
+ if (info->flags & USE_SHMEM)
+ printk (" mem %#5lx,", dev->mem_start);
+ if (info->flags & HAS_MISC_REG)
+ printk(" %s xcvr,", if_names[dev->if_port]);
+ printk(" hw_addr ");
+ for (i = 0; i < 6; i++)
+ printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
+ return;
+
+config_undo:
+ unregister_netdev(dev);
+ goto failed;
+cs_failed:
+ cs_error(link->handle, last_fn, last_ret);
+failed:
+ pcnet_release((u_long)link);
+ return;
+} /* pcnet_config */
+
+/*======================================================================
+
+ After a card is removed, pcnet_release() will unregister the net
+ device, and release the PCMCIA configuration. If the device is
+ still open, this will be postponed until it is closed.
+
+======================================================================*/
+
+static void pcnet_release(u_long arg)
+{
+ dev_link_t *link = (dev_link_t *)arg;
+ pcnet_dev_t *info = link->priv;
+
+ DEBUG(0, "pcnet_release(0x%p)\n", link);
+
+ if (link->open) {
+ DEBUG(1, "pcnet_cs: release postponed, '%s' still open\n",
+ info->node.dev_name);
+ link->state |= DEV_STALE_CONFIG;
+ return;
+ }
+
+ if (info->flags & USE_SHMEM) {
+ iounmap(info->base);
+ CardServices(ReleaseWindow, link->win);
+ }
+ CardServices(ReleaseConfiguration, link->handle);
+ CardServices(ReleaseIO, link->handle, &link->io);
+ CardServices(ReleaseIRQ, link->handle, &link->irq);
+
+ link->state &= ~(DEV_CONFIG | DEV_RELEASE_PENDING);
+
+} /* pcnet_release */
+
+/*======================================================================
+
+ The card status event handler. Mostly, this schedules other
+ stuff to run after an event is received. A CARD_REMOVAL event
+ also sets some flags to discourage the net drivers from trying
+ to talk to the card any more.
+
+======================================================================*/
+
+static int pcnet_event(event_t event, int priority,
+ event_callback_args_t *args)
+{
+ dev_link_t *link = args->client_data;
+ pcnet_dev_t *info = link->priv;
+
+ DEBUG(2, "pcnet_event(0x%06x)\n", event);
+
+ switch (event) {
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if (link->state & DEV_CONFIG) {
+ info->dev.tbusy = 1; info->dev.start = 0;
+ link->release.expires = jiffies + HZ/20;
+ link->state |= DEV_RELEASE_PENDING;
+ add_timer(&link->release);
+ }
+ break;
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT;
+ pcnet_config(link);
+ break;
+ case CS_EVENT_PM_SUSPEND:
+ link->state |= DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if (link->state & DEV_CONFIG) {
+ if (link->open) {
+ info->dev.tbusy = 1; info->dev.start = 0;
+ }
+ CardServices(ReleaseConfiguration, link->handle);
+ }
+ break;
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if (link->state & DEV_CONFIG) {
+ CardServices(RequestConfiguration, link->handle, &link->conf);
+ if (link->open) {
+ pcnet_reset_8390(&info->dev);
+ NS8390_init(&info->dev, 1);
+ info->dev.tbusy = 0; info->dev.start = 1;
+ }
+ }
+ break;
+ }
+ return 0;
+} /* pcnet_event */
+
+/*====================================================================*/
+
+static void set_misc_reg(struct net_device *dev)
+{
+ int nic_base = dev->base_addr;
+ pcnet_dev_t *info = (pcnet_dev_t *)dev;
+ u_char tmp;
+
+ if (info->flags & HAS_MISC_REG) {
+ tmp = inb_p(nic_base + PCNET_MISC) & ~3;
+ if (dev->if_port == 2)
+ tmp |= 1;
+ if (info->flags & USE_BIG_BUF)
+ tmp |= 2;
+ if (info->flags & HAS_IBM_MISC)
+ tmp |= 8;
+ outb_p(tmp, nic_base + PCNET_MISC);
+ }
+}
+
+/*====================================================================*/
+
+static int pcnet_open(struct net_device *dev)
+{
+ pcnet_dev_t *info = (pcnet_dev_t *)dev;
+ dev_link_t *link;
+
+ DEBUG(2, "pcnet_open('%s')\n", dev->name);
+
+ for (link = dev_list; link; link = link->next)
+ if (link->priv == dev) break;
+ if (!DEV_OK(link))
+ return -ENODEV;
+
+ link->open++;
+ MOD_INC_USE_COUNT;
+
+ /* For D-Link EtherFast, wait for something(?) to happen */
+ if (info->flags & IS_DL10019A) {
+ int i;
+ for (i = 0; i < 20; i++) {
+ if ((inb(dev->base_addr+0x1c) & 0x01) == 0) break;
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ }
+ }
+
+ set_misc_reg(dev);
+ request_irq(dev->irq, ei_interrupt, SA_SHIRQ, dev_info, dev);
+ return ei_open(dev);
+} /* pcnet_open */
+
+/*====================================================================*/
+
+static int pcnet_close(struct net_device *dev)
+{
+ dev_link_t *link;
+
+ DEBUG(2, "pcnet_close('%s')\n", dev->name);
+
+ for (link = dev_list; link; link = link->next)
+ if (link->priv == dev) break;
+ if (link == NULL)
+ return -ENODEV;
+ free_irq(dev->irq, dev);
+
+ link->open--; dev->start = 0;
+ if (link->state & DEV_STALE_CONFIG) {
+ link->release.expires = jiffies+HZ/20;
+ link->state |= DEV_RELEASE_PENDING;
+ add_timer(&link->release);
+ }
+
+ MOD_DEC_USE_COUNT;
+
+ return 0;
+} /* pcnet_close */
+
+/*======================================================================
+
+ 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 pcnet_reset_8390(struct net_device *dev)
+{
+ int nic_base = dev->base_addr;
+ int i;
+
+ ei_status.txing = ei_status.dmaing = 0;
+
+ outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET);
+
+ for (i = 0; i < 100; i++) {
+ if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0)
+ break;
+ udelay(100L);
+ }
+ outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */
+
+ if (i == 100)
+ printk(KERN_ERR "%s: pcnet_reset_8390() did not complete.\n",
+ dev->name);
+ set_misc_reg(dev);
+
+} /* pcnet_reset_8390 */
+
+/* ======================================================================= */
+
+static int set_config(struct net_device *dev, struct ifmap *map)
+{
+ pcnet_dev_t *info = (pcnet_dev_t *)dev;
+ if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
+ if ((map->port != 0) && !(info->flags & HAS_MISC_REG)) {
+ printk(KERN_NOTICE "%s: transceiver selection not "
+ "implemented\n", dev->name);
+ return -EINVAL;
+ }
+ if ((map->port == 1) || (map->port == 2)) {
+ dev->if_port = map->port;
+ printk(KERN_INFO "%s: switched to %s port\n",
+ dev->name, if_names[dev->if_port]);
+ } else
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/* ======================================================================= */
+
+static void dma_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr,
+ int ring_page)
+{
+ int nic_base = dev->base_addr;
+
+ if (ei_status.dmaing) {
+ printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input."
+ "[DMAstat:%1x][irqlock:%1x][intr:%ld]\n",
+ dev->name, ei_status.dmaing, ei_status.irqlock,
+ (long)dev->interrupt);
+ return;
+ }
+
+ ei_status.dmaing |= 0x01;
+ outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_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 + PCNET_CMD);
+
+ insw(nic_base + PCNET_DATAPORT, hdr,
+ sizeof(struct e8390_pkt_hdr)>>1);
+ /* Fix for big endian systems */
+ hdr->count = le16_to_cpu(hdr->count);
+
+ outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
+ ei_status.dmaing &= ~0x01;
+}
+
+/* ======================================================================= */
+
+static void dma_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset)
+{
+ int nic_base = dev->base_addr;
+ int xfer_count = count;
+ char *buf = skb->data;
+
+#ifdef PCMCIA_DEBUG
+ if ((ei_debug > 4) && (count != 4))
+ printk(KERN_DEBUG "%s: [bi=%d]\n", dev->name, count+4);
+#endif
+ if (ei_status.dmaing) {
+ printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input."
+ "[DMAstat:%1x][irqlock:%1x][intr:%ld]\n",
+ dev->name, ei_status.dmaing, ei_status.irqlock,
+ (long)dev->interrupt);
+ return;
+ }
+ ei_status.dmaing |= 0x01;
+ outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_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 + PCNET_CMD);
+
+ insw(nic_base + PCNET_DATAPORT,buf,count>>1);
+ if (count & 0x01)
+ buf[count-1] = inb(nic_base + PCNET_DATAPORT), xfer_count++;
+
+ /* This was for the ALPHA version only, but enough people have
+ encountering problems that it is still here. */
+#ifdef PCMCIA_DEBUG
+ if (ei_debug > 4) { /* 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) == (addr & 0xff))
+ break;
+ } while (--tries > 0);
+ if (tries <= 0)
+ printk(KERN_NOTICE "%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;
+} /* dma_block_input */
+
+/*====================================================================*/
+
+static void dma_block_output(struct net_device *dev, int count,
+ const unsigned char *buf,
+ const int start_page)
+{
+ int nic_base = dev->base_addr;
+ pcnet_dev_t *info = (pcnet_dev_t *)dev;
+#ifdef PCMCIA_DEBUG
+ int retries = 0;
+#endif
+ u_long dma_start;
+
+#ifdef PCMCIA_DEBUG
+ if (ei_debug > 4)
+ printk(KERN_DEBUG "%s: [bo=%d]\n", dev->name, count);
+#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 (count & 0x01)
+ count++;
+ if (ei_status.dmaing) {
+ printk(KERN_NOTICE "%s: DMAing conflict in dma_block_output."
+ "[DMAstat:%1x][irqlock:%1x][intr:%ld]\n",
+ dev->name, ei_status.dmaing, ei_status.irqlock,
+ (long)dev->interrupt);
+ 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+PCNET_CMD);
+
+#ifdef PCMCIA_DEBUG
+ retry:
+#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 + PCNET_CMD);
+ outsw(nic_base + PCNET_DATAPORT, buf, count>>1);
+
+ dma_start = jiffies;
+
+#ifdef PCMCIA_DEBUG
+ /* This was for the ALPHA version only, but enough people have
+ encountering problems that it is still here. */
+ if (ei_debug > 4) { /* 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_NOTICE "%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 (jiffies - dma_start > PCNET_RDC_TIMEOUT) {
+ printk(KERN_NOTICE "%s: timeout waiting for Tx RDC.\n",
+ dev->name);
+ pcnet_reset_8390(dev);
+ NS8390_init(dev, 1);
+ break;
+ }
+
+ outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
+ if (info->flags & DELAY_OUTPUT)
+ udelay((long)delay_time);
+ ei_status.dmaing &= ~0x01;
+}
+
+/*====================================================================*/
+
+static int setup_dma_config(dev_link_t *link, int start_pg,
+ int stop_pg)
+{
+ struct net_device *dev = link->priv;
+
+ ei_status.tx_start_page = start_pg;
+ ei_status.rx_start_page = start_pg + TX_PAGES;
+ ei_status.stop_page = stop_pg;
+
+ /* set up block i/o functions */
+ ei_status.get_8390_hdr = &dma_get_8390_hdr;
+ ei_status.block_input = &dma_block_input;
+ ei_status.block_output = &dma_block_output;
+
+ return 0;
+}
+
+/*====================================================================*/
+
+static void copyin(unsigned char *dest, unsigned char *src, int c)
+{
+ unsigned short *d = (unsigned short *) dest;
+ unsigned short *s = (unsigned short *) src;
+ int odd;
+
+ if (c <= 0)
+ return;
+ odd = (c & 01); c >>= 1;
+
+ if (c) {
+ do { *d++ = readw(s++); } while (--c);
+ }
+ /* get last byte by fetching a word and masking */
+ if (odd)
+ *((unsigned char *)d) = readw(s) & 0xff;
+}
+
+static void copyout(unsigned char *dest, const unsigned char *src, int c)
+{
+ volatile unsigned short *d = (unsigned short *) dest;
+ unsigned short *s = (unsigned short *) src;
+ int odd;
+
+ if (c <= 0)
+ return;
+ odd = (c & 01); c >>= 1;
+
+ if (c) {
+ do { writew(*s++, d++); } while (--c);
+ }
+ /* copy last byte doing a read-modify-write */
+ if (odd)
+ writew((readw(d) & 0xff00) | *(u_char *)s, d);
+}
+
+/*====================================================================*/
+
+static void shmem_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr,
+ int ring_page)
+{
+ void *xfer_start = (void *)(dev->rmem_start + (ring_page << 8)
+ - (ei_status.rx_start_page << 8));
+
+ copyin((void *)hdr, xfer_start, sizeof(struct e8390_pkt_hdr));
+ /* Fix for big endian systems */
+ hdr->count = le16_to_cpu(hdr->count);
+}
+
+/*====================================================================*/
+
+static void shmem_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset)
+{
+ void *xfer_start = (void *)(dev->rmem_start + ring_offset
+ - (ei_status.rx_start_page << 8));
+ char *buf = skb->data;
+
+ if (xfer_start + count > (void *)dev->rmem_end) {
+ /* We must wrap the input move. */
+ int semi_count = (void*)dev->rmem_end - xfer_start;
+ copyin(buf, xfer_start, semi_count);
+ buf += semi_count;
+ ring_offset = ei_status.rx_start_page << 8;
+ xfer_start = (void *)dev->rmem_start;
+ count -= semi_count;
+ }
+ copyin(buf, xfer_start, count);
+}
+
+/*====================================================================*/
+
+static void shmem_block_output(struct net_device *dev, int count,
+ const unsigned char *buf,
+ const int start_page)
+{
+ void *shmem = (void *)dev->mem_start + (start_page << 8);
+ shmem -= ei_status.tx_start_page << 8;
+
+ if (ei_debug > 4)
+ printk(KERN_DEBUG "[bo=%d @ %x]\n", count, start_page);
+
+ copyout(shmem, buf, count);
+}
+
+/*====================================================================*/
+
+static int setup_shmem_window(dev_link_t *link, int start_pg,
+ int stop_pg, int cm_offset)
+{
+ struct net_device *dev = link->priv;
+ pcnet_dev_t *info = link->priv;
+ win_req_t req;
+ memreq_t mem;
+ int i, window_size, offset, last_ret, last_fn;
+
+ window_size = (stop_pg - start_pg) << 8;
+ if (window_size > 32 * 1024)
+ window_size = 32 * 1024;
+
+ /* Make sure it's a power of two. */
+ while ((window_size & (window_size - 1)) != 0)
+ window_size += window_size & ~(window_size - 1);
+
+ /* Allocate a memory window */
+ req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
+ req.Attributes |= WIN_USE_WAIT;
+ req.Base = 0; req.Size = window_size;
+ req.AccessSpeed = mem_speed;
+ link->win = (window_handle_t)link->handle;
+ CS_CHECK(RequestWindow, &link->win, &req);
+
+ mem.CardOffset = (start_pg << 8) + cm_offset;
+ offset = mem.CardOffset % window_size;
+ mem.CardOffset -= offset;
+ mem.Page = 0;
+ CS_CHECK(MapMemPage, link->win, &mem);
+
+ /* Try scribbling on the buffer */
+ info->base = ioremap(req.Base, window_size);
+ for (i = 0; i < (TX_PAGES<<8); i += 2)
+ writew((i>>1), info->base+offset+i);
+ udelay(100);
+ for (i = 0; i < (TX_PAGES<<8); i += 2)
+ if (readw(info->base+offset+i) != (i>>1)) break;
+ pcnet_reset_8390(dev);
+ if (i != (TX_PAGES<<8)) {
+ iounmap(info->base);
+ CardServices(ReleaseWindow, link->win);
+ info->base = NULL; link->win = NULL;
+ goto failed;
+ }
+
+ dev->mem_start = (u_long)info->base + offset;
+ dev->rmem_start = dev->mem_start + (TX_PAGES<<8);
+ dev->mem_end = dev->rmem_end = (u_long)info->base + req.Size;
+
+ ei_status.tx_start_page = start_pg;
+ ei_status.rx_start_page = start_pg + TX_PAGES;
+ ei_status.stop_page = start_pg + ((req.Size - offset) >> 8);
+
+ /* set up block i/o functions */
+ ei_status.get_8390_hdr = &shmem_get_8390_hdr;
+ ei_status.block_input = &shmem_block_input;
+ ei_status.block_output = &shmem_block_output;
+
+ info->flags |= USE_SHMEM;
+ return 0;
+
+cs_failed:
+ cs_error(link->handle, last_fn, last_ret);
+failed:
+ return 1;
+}
+
+/*====================================================================*/
+
+#ifdef MODULE
+int init_module(void)
+#else
+int init_pcnet_cs(void)
+#endif
+{
+ servinfo_t serv;
+ DEBUG(0, "%s\n", version);
+ CardServices(GetCardServicesInfo, &serv);
+ if (serv.Revision != CS_RELEASE_CODE) {
+ printk(KERN_NOTICE "pcnet_cs: Card Services release "
+ "does not match!\n");
+ return -1;
+ }
+ register_pcmcia_driver(&dev_info, &pcnet_attach, &pcnet_detach);
+ DEBUG(0, "pcnet driver registered\n" );
+ return 0;
+}
+
+//__initcall(init_pcnet_cs);
+
+#ifdef MODULE
+void cleanup_module(void)
+{
+ DEBUG(0, "pcnet_cs: unloading\n");
+ unregister_pcmcia_driver(&dev_info);
+ while (dev_list != NULL)
+ pcnet_detach(dev_list);
+}
+#endif
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)