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-rw-r--r--drivers/net/pcmcia/smc91c92_cs.c2260
1 files changed, 2260 insertions, 0 deletions
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
new file mode 100644
index 00000000000..85a15217314
--- /dev/null
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -0,0 +1,2260 @@
+/*======================================================================
+
+ A PCMCIA ethernet driver for SMC91c92-based cards.
+
+ This driver supports Megahertz PCMCIA ethernet cards; and
+ Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
+ multifunction cards.
+
+ Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
+
+ smc91c92_cs.c 1.122 2002/10/25 06:26:39
+
+ This driver contains code written by Donald Becker
+ (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au),
+ David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman
+ (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of
+ Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've
+ incorporated some parts of his driver here. I (Dave) wrote most
+ of the PCMCIA glue code, and the Ositech support code. Kelly
+ Stephens (kstephen@holli.com) added support for the Motorola
+ Mariner, with help from Allen Brost.
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License, incorporated herein by reference.
+
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/crc32.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+/* Ositech Seven of Diamonds firmware */
+#include "ositech.h"
+
+/*====================================================================*/
+
+static char *if_names[] = { "auto", "10baseT", "10base2"};
+
+/* Module parameters */
+
+MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
+MODULE_LICENSE("GPL");
+
+#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
+
+/*
+ Transceiver/media type.
+ 0 = auto
+ 1 = 10baseT (and autoselect if #define AUTOSELECT),
+ 2 = AUI/10base2,
+*/
+INT_MODULE_PARM(if_port, 0);
+
+#ifdef PCMCIA_DEBUG
+INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
+static const char *version =
+"smc91c92_cs.c 0.09 1996/8/4 Donald Becker, becker@scyld.com.\n";
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+#else
+#define DEBUG(n, args...)
+#endif
+
+#define DRV_NAME "smc91c92_cs"
+#define DRV_VERSION "1.122"
+
+/*====================================================================*/
+
+/* Operational parameter that usually are not changed. */
+
+/* Time in jiffies before concluding Tx hung */
+#define TX_TIMEOUT ((400*HZ)/1000)
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+#define INTR_WORK 4
+
+/* Times to check the check the chip before concluding that it doesn't
+ currently have room for another Tx packet. */
+#define MEMORY_WAIT_TIME 8
+
+static dev_info_t dev_info = "smc91c92_cs";
+
+static dev_link_t *dev_list;
+
+struct smc_private {
+ dev_link_t link;
+ spinlock_t lock;
+ u_short manfid;
+ u_short cardid;
+ struct net_device_stats stats;
+ dev_node_t node;
+ struct sk_buff *saved_skb;
+ int packets_waiting;
+ void __iomem *base;
+ u_short cfg;
+ struct timer_list media;
+ int watchdog, tx_err;
+ u_short media_status;
+ u_short fast_poll;
+ u_short link_status;
+ struct mii_if_info mii_if;
+ int duplex;
+ int rx_ovrn;
+};
+
+/* Special definitions for Megahertz multifunction cards */
+#define MEGAHERTZ_ISR 0x0380
+
+/* Special function registers for Motorola Mariner */
+#define MOT_LAN 0x0000
+#define MOT_UART 0x0020
+#define MOT_EEPROM 0x20
+
+#define MOT_NORMAL \
+(COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
+
+/* Special function registers for Ositech cards */
+#define OSITECH_AUI_CTL 0x0c
+#define OSITECH_PWRDOWN 0x0d
+#define OSITECH_RESET 0x0e
+#define OSITECH_ISR 0x0f
+#define OSITECH_AUI_PWR 0x0c
+#define OSITECH_RESET_ISR 0x0e
+
+#define OSI_AUI_PWR 0x40
+#define OSI_LAN_PWRDOWN 0x02
+#define OSI_MODEM_PWRDOWN 0x01
+#define OSI_LAN_RESET 0x02
+#define OSI_MODEM_RESET 0x01
+
+/* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
+#define BANK_SELECT 14 /* Window select register. */
+#define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
+
+/* Bank 0 registers. */
+#define TCR 0 /* transmit control register */
+#define TCR_CLEAR 0 /* do NOTHING */
+#define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
+#define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
+#define TCR_MONCSN 0x0400 /* Monitor Carrier. */
+#define TCR_FDUPLX 0x0800 /* Full duplex mode. */
+#define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
+
+#define EPH 2 /* Ethernet Protocol Handler report. */
+#define EPH_TX_SUC 0x0001
+#define EPH_SNGLCOL 0x0002
+#define EPH_MULCOL 0x0004
+#define EPH_LTX_MULT 0x0008
+#define EPH_16COL 0x0010
+#define EPH_SQET 0x0020
+#define EPH_LTX_BRD 0x0040
+#define EPH_TX_DEFR 0x0080
+#define EPH_LAT_COL 0x0200
+#define EPH_LOST_CAR 0x0400
+#define EPH_EXC_DEF 0x0800
+#define EPH_CTR_ROL 0x1000
+#define EPH_RX_OVRN 0x2000
+#define EPH_LINK_OK 0x4000
+#define EPH_TX_UNRN 0x8000
+#define MEMINFO 8 /* Memory Information Register */
+#define MEMCFG 10 /* Memory Configuration Register */
+
+/* Bank 1 registers. */
+#define CONFIG 0
+#define CFG_MII_SELECT 0x8000 /* 91C100 only */
+#define CFG_NO_WAIT 0x1000
+#define CFG_FULL_STEP 0x0400
+#define CFG_SET_SQLCH 0x0200
+#define CFG_AUI_SELECT 0x0100
+#define CFG_16BIT 0x0080
+#define CFG_DIS_LINK 0x0040
+#define CFG_STATIC 0x0030
+#define CFG_IRQ_SEL_1 0x0004
+#define CFG_IRQ_SEL_0 0x0002
+#define BASE_ADDR 2
+#define ADDR0 4
+#define GENERAL 10
+#define CONTROL 12
+#define CTL_STORE 0x0001
+#define CTL_RELOAD 0x0002
+#define CTL_EE_SELECT 0x0004
+#define CTL_TE_ENABLE 0x0020
+#define CTL_CR_ENABLE 0x0040
+#define CTL_LE_ENABLE 0x0080
+#define CTL_AUTO_RELEASE 0x0800
+#define CTL_POWERDOWN 0x2000
+
+/* Bank 2 registers. */
+#define MMU_CMD 0
+#define MC_ALLOC 0x20 /* or with number of 256 byte packets */
+#define MC_RESET 0x40
+#define MC_RELEASE 0x80 /* remove and release the current rx packet */
+#define MC_FREEPKT 0xA0 /* Release packet in PNR register */
+#define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
+#define PNR_ARR 2
+#define FIFO_PORTS 4
+#define FP_RXEMPTY 0x8000
+#define POINTER 6
+#define PTR_AUTO_INC 0x0040
+#define PTR_READ 0x2000
+#define PTR_AUTOINC 0x4000
+#define PTR_RCV 0x8000
+#define DATA_1 8
+#define INTERRUPT 12
+#define IM_RCV_INT 0x1
+#define IM_TX_INT 0x2
+#define IM_TX_EMPTY_INT 0x4
+#define IM_ALLOC_INT 0x8
+#define IM_RX_OVRN_INT 0x10
+#define IM_EPH_INT 0x20
+
+#define RCR 4
+enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
+ RxEnable = 0x0100, RxStripCRC = 0x0200};
+#define RCR_SOFTRESET 0x8000 /* resets the chip */
+#define RCR_STRIP_CRC 0x200 /* strips CRC */
+#define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
+#define RCR_ALMUL 0x4 /* receive all multicast packets */
+#define RCR_PROMISC 0x2 /* enable promiscuous mode */
+
+/* the normal settings for the RCR register : */
+#define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
+#define RCR_CLEAR 0x0 /* set it to a base state */
+#define COUNTER 6
+
+/* BANK 3 -- not the same values as in smc9194! */
+#define MULTICAST0 0
+#define MULTICAST2 2
+#define MULTICAST4 4
+#define MULTICAST6 6
+#define MGMT 8
+#define REVISION 0x0a
+
+/* Transmit status bits. */
+#define TS_SUCCESS 0x0001
+#define TS_16COL 0x0010
+#define TS_LATCOL 0x0200
+#define TS_LOSTCAR 0x0400
+
+/* Receive status bits. */
+#define RS_ALGNERR 0x8000
+#define RS_BADCRC 0x2000
+#define RS_ODDFRAME 0x1000
+#define RS_TOOLONG 0x0800
+#define RS_TOOSHORT 0x0400
+#define RS_MULTICAST 0x0001
+#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
+
+#define set_bits(v, p) outw(inw(p)|(v), (p))
+#define mask_bits(v, p) outw(inw(p)&(v), (p))
+
+/*====================================================================*/
+
+static dev_link_t *smc91c92_attach(void);
+static void smc91c92_detach(dev_link_t *);
+static void smc91c92_config(dev_link_t *link);
+static void smc91c92_release(dev_link_t *link);
+static int smc91c92_event(event_t event, int priority,
+ event_callback_args_t *args);
+
+static int smc_open(struct net_device *dev);
+static int smc_close(struct net_device *dev);
+static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static void smc_tx_timeout(struct net_device *dev);
+static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t smc_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static void smc_rx(struct net_device *dev);
+static struct net_device_stats *smc_get_stats(struct net_device *dev);
+static void set_rx_mode(struct net_device *dev);
+static int s9k_config(struct net_device *dev, struct ifmap *map);
+static void smc_set_xcvr(struct net_device *dev, int if_port);
+static void smc_reset(struct net_device *dev);
+static void media_check(u_long arg);
+static void mdio_sync(kio_addr_t addr);
+static int mdio_read(struct net_device *dev, int phy_id, int loc);
+static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
+static int smc_link_ok(struct net_device *dev);
+static struct ethtool_ops ethtool_ops;
+
+/*======================================================================
+
+ smc91c92_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 *smc91c92_attach(void)
+{
+ client_reg_t client_reg;
+ struct smc_private *smc;
+ dev_link_t *link;
+ struct net_device *dev;
+ int ret;
+
+ DEBUG(0, "smc91c92_attach()\n");
+
+ /* Create new ethernet device */
+ dev = alloc_etherdev(sizeof(struct smc_private));
+ if (!dev)
+ return NULL;
+ smc = netdev_priv(dev);
+ link = &smc->link;
+ link->priv = dev;
+
+ spin_lock_init(&smc->lock);
+ link->io.NumPorts1 = 16;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ link->io.IOAddrLines = 4;
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->irq.Handler = &smc_interrupt;
+ link->irq.Instance = dev;
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+
+ /* The SMC91c92-specific entries in the device structure. */
+ SET_MODULE_OWNER(dev);
+ dev->hard_start_xmit = &smc_start_xmit;
+ dev->get_stats = &smc_get_stats;
+ dev->set_config = &s9k_config;
+ dev->set_multicast_list = &set_rx_mode;
+ dev->open = &smc_open;
+ dev->stop = &smc_close;
+ dev->do_ioctl = &smc_ioctl;
+ SET_ETHTOOL_OPS(dev, &ethtool_ops);
+#ifdef HAVE_TX_TIMEOUT
+ dev->tx_timeout = smc_tx_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
+#endif
+
+ smc->mii_if.dev = dev;
+ smc->mii_if.mdio_read = mdio_read;
+ smc->mii_if.mdio_write = mdio_write;
+ smc->mii_if.phy_id_mask = 0x1f;
+ smc->mii_if.reg_num_mask = 0x1f;
+
+ /* Register with Card Services */
+ link->next = dev_list;
+ dev_list = link;
+ client_reg.dev_info = &dev_info;
+ 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 = &smc91c92_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+ ret = pcmcia_register_client(&link->handle, &client_reg);
+ if (ret != 0) {
+ cs_error(link->handle, RegisterClient, ret);
+ smc91c92_detach(link);
+ return NULL;
+ }
+
+ return link;
+} /* smc91c92_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 smc91c92_detach(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ dev_link_t **linkp;
+
+ DEBUG(0, "smc91c92_detach(0x%p)\n", link);
+
+ /* Locate device structure */
+ for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+ if (*linkp == link) break;
+ if (*linkp == NULL)
+ return;
+
+ if (link->dev)
+ unregister_netdev(dev);
+
+ if (link->state & DEV_CONFIG)
+ smc91c92_release(link);
+
+ if (link->handle)
+ pcmcia_deregister_client(link->handle);
+
+ /* Unlink device structure, free bits */
+ *linkp = link->next;
+ free_netdev(dev);
+} /* smc91c92_detach */
+
+/*====================================================================*/
+
+static int cvt_ascii_address(struct net_device *dev, char *s)
+{
+ int i, j, da, c;
+
+ if (strlen(s) != 12)
+ return -1;
+ for (i = 0; i < 6; i++) {
+ da = 0;
+ for (j = 0; j < 2; j++) {
+ c = *s++;
+ da <<= 4;
+ da += ((c >= '0') && (c <= '9')) ?
+ (c - '0') : ((c & 0x0f) + 9);
+ }
+ dev->dev_addr[i] = da;
+ }
+ return 0;
+}
+
+/*====================================================================*/
+
+static int first_tuple(client_handle_t handle, tuple_t *tuple,
+ cisparse_t *parse)
+{
+ int i;
+
+ if ((i = pcmcia_get_first_tuple(handle, tuple)) != CS_SUCCESS ||
+ (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
+ return i;
+ return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+static int next_tuple(client_handle_t handle, tuple_t *tuple,
+ cisparse_t *parse)
+{
+ int i;
+
+ if ((i = pcmcia_get_next_tuple(handle, tuple)) != CS_SUCCESS ||
+ (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
+ return i;
+ return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+/*======================================================================
+
+ Configuration stuff for Megahertz cards
+
+ mhz_3288_power() is used to power up a 3288's ethernet chip.
+ mhz_mfc_config() handles socket setup for multifunction (1144
+ and 3288) cards. mhz_setup() gets a card's hardware ethernet
+ address.
+
+======================================================================*/
+
+static int mhz_3288_power(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ struct smc_private *smc = netdev_priv(dev);
+ u_char tmp;
+
+ /* Read the ISR twice... */
+ readb(smc->base+MEGAHERTZ_ISR);
+ udelay(5);
+ readb(smc->base+MEGAHERTZ_ISR);
+
+ /* Pause 200ms... */
+ mdelay(200);
+
+ /* Now read and write the COR... */
+ tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
+ udelay(5);
+ writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
+
+ return 0;
+}
+
+static int mhz_mfc_config(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ struct smc_private *smc = netdev_priv(dev);
+ tuple_t tuple;
+ cisparse_t parse;
+ u_char buf[255];
+ cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+ win_req_t req;
+ memreq_t mem;
+ int i, k;
+
+ link->conf.Attributes |= CONF_ENABLE_SPKR;
+ link->conf.Status = CCSR_AUDIO_ENA;
+ link->irq.Attributes =
+ IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
+ link->io.IOAddrLines = 16;
+ link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
+ link->io.NumPorts2 = 8;
+
+ tuple.Attributes = tuple.TupleOffset = 0;
+ tuple.TupleData = (cisdata_t *)buf;
+ tuple.TupleDataMax = sizeof(buf);
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+
+ i = first_tuple(link->handle, &tuple, &parse);
+ /* The Megahertz combo cards have modem-like CIS entries, so
+ we have to explicitly try a bunch of port combinations. */
+ while (i == CS_SUCCESS) {
+ link->conf.ConfigIndex = cf->index;
+ link->io.BasePort2 = cf->io.win[0].base;
+ for (k = 0; k < 0x400; k += 0x10) {
+ if (k & 0x80) continue;
+ link->io.BasePort1 = k ^ 0x300;
+ i = pcmcia_request_io(link->handle, &link->io);
+ if (i == CS_SUCCESS) break;
+ }
+ if (i == CS_SUCCESS) break;
+ i = next_tuple(link->handle, &tuple, &parse);
+ }
+ if (i != CS_SUCCESS)
+ return i;
+ dev->base_addr = link->io.BasePort1;
+
+ /* Allocate a memory window, for accessing the ISR */
+ req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
+ req.Base = req.Size = 0;
+ req.AccessSpeed = 0;
+ i = pcmcia_request_window(&link->handle, &req, &link->win);
+ if (i != CS_SUCCESS)
+ return i;
+ smc->base = ioremap(req.Base, req.Size);
+ mem.CardOffset = mem.Page = 0;
+ if (smc->manfid == MANFID_MOTOROLA)
+ mem.CardOffset = link->conf.ConfigBase;
+ i = pcmcia_map_mem_page(link->win, &mem);
+
+ if ((i == CS_SUCCESS)
+ && (smc->manfid == MANFID_MEGAHERTZ)
+ && (smc->cardid == PRODID_MEGAHERTZ_EM3288))
+ mhz_3288_power(link);
+
+ return i;
+}
+
+static int mhz_setup(dev_link_t *link)
+{
+ client_handle_t handle = link->handle;
+ struct net_device *dev = link->priv;
+ tuple_t tuple;
+ cisparse_t parse;
+ u_char buf[255], *station_addr;
+
+ tuple.Attributes = tuple.TupleOffset = 0;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = sizeof(buf);
+
+ /* Read the station address from the CIS. It is stored as the last
+ (fourth) string in the Version 1 Version/ID tuple. */
+ tuple.DesiredTuple = CISTPL_VERS_1;
+ if (first_tuple(handle, &tuple, &parse) != CS_SUCCESS)
+ return -1;
+ /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
+ if (next_tuple(handle, &tuple, &parse) != CS_SUCCESS)
+ first_tuple(handle, &tuple, &parse);
+ if (parse.version_1.ns > 3) {
+ station_addr = parse.version_1.str + parse.version_1.ofs[3];
+ if (cvt_ascii_address(dev, station_addr) == 0)
+ return 0;
+ }
+
+ /* Another possibility: for the EM3288, in a special tuple */
+ tuple.DesiredTuple = 0x81;
+ if (pcmcia_get_first_tuple(handle, &tuple) != CS_SUCCESS)
+ return -1;
+ if (pcmcia_get_tuple_data(handle, &tuple) != CS_SUCCESS)
+ return -1;
+ buf[12] = '\0';
+ if (cvt_ascii_address(dev, buf) == 0)
+ return 0;
+
+ return -1;
+}
+
+/*======================================================================
+
+ Configuration stuff for the Motorola Mariner
+
+ mot_config() writes directly to the Mariner configuration
+ registers because the CIS is just bogus.
+
+======================================================================*/
+
+static void mot_config(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ kio_addr_t iouart = link->io.BasePort2;
+
+ /* Set UART base address and force map with COR bit 1 */
+ writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
+ writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
+ writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
+
+ /* Set SMC base address and force map with COR bit 1 */
+ writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
+ writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
+ writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
+
+ /* Wait for things to settle down */
+ mdelay(100);
+}
+
+static int mot_setup(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ kio_addr_t ioaddr = dev->base_addr;
+ int i, wait, loop;
+ u_int addr;
+
+ /* Read Ethernet address from Serial EEPROM */
+
+ for (i = 0; i < 3; i++) {
+ SMC_SELECT_BANK(2);
+ outw(MOT_EEPROM + i, ioaddr + POINTER);
+ SMC_SELECT_BANK(1);
+ outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
+
+ for (loop = wait = 0; loop < 200; loop++) {
+ udelay(10);
+ wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
+ if (wait == 0) break;
+ }
+
+ if (wait)
+ return -1;
+
+ addr = inw(ioaddr + GENERAL);
+ dev->dev_addr[2*i] = addr & 0xff;
+ dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
+ }
+
+ return 0;
+}
+
+/*====================================================================*/
+
+static int smc_config(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ tuple_t tuple;
+ cisparse_t parse;
+ u_char buf[255];
+ cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+ int i;
+
+ tuple.Attributes = tuple.TupleOffset = 0;
+ tuple.TupleData = (cisdata_t *)buf;
+ tuple.TupleDataMax = sizeof(buf);
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+
+ link->io.NumPorts1 = 16;
+ i = first_tuple(link->handle, &tuple, &parse);
+ while (i != CS_NO_MORE_ITEMS) {
+ if (i == CS_SUCCESS) {
+ link->conf.ConfigIndex = cf->index;
+ link->io.BasePort1 = cf->io.win[0].base;
+ link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
+ i = pcmcia_request_io(link->handle, &link->io);
+ if (i == CS_SUCCESS) break;
+ }
+ i = next_tuple(link->handle, &tuple, &parse);
+ }
+ if (i == CS_SUCCESS)
+ dev->base_addr = link->io.BasePort1;
+ return i;
+}
+
+static int smc_setup(dev_link_t *link)
+{
+ client_handle_t handle = link->handle;
+ struct net_device *dev = link->priv;
+ tuple_t tuple;
+ cisparse_t parse;
+ cistpl_lan_node_id_t *node_id;
+ u_char buf[255], *station_addr;
+ int i;
+
+ tuple.Attributes = tuple.TupleOffset = 0;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = sizeof(buf);
+
+ /* Check for a LAN function extension tuple */
+ tuple.DesiredTuple = CISTPL_FUNCE;
+ i = first_tuple(handle, &tuple, &parse);
+ while (i == CS_SUCCESS) {
+ if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID)
+ break;
+ i = next_tuple(handle, &tuple, &parse);
+ }
+ if (i == CS_SUCCESS) {
+ node_id = (cistpl_lan_node_id_t *)parse.funce.data;
+ if (node_id->nb == 6) {
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = node_id->id[i];
+ return 0;
+ }
+ }
+ /* Try the third string in the Version 1 Version/ID tuple. */
+ tuple.DesiredTuple = CISTPL_VERS_1;
+ if (first_tuple(handle, &tuple, &parse) != CS_SUCCESS)
+ return -1;
+ station_addr = parse.version_1.str + parse.version_1.ofs[2];
+ if (cvt_ascii_address(dev, station_addr) == 0)
+ return 0;
+
+ return -1;
+}
+
+/*====================================================================*/
+
+static int osi_config(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ static kio_addr_t com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
+ int i, j;
+
+ link->conf.Attributes |= CONF_ENABLE_SPKR;
+ link->conf.Status = CCSR_AUDIO_ENA;
+ link->irq.Attributes =
+ IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
+ link->io.NumPorts1 = 64;
+ link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
+ link->io.NumPorts2 = 8;
+ link->io.IOAddrLines = 16;
+
+ /* Enable Hard Decode, LAN, Modem */
+ link->conf.ConfigIndex = 0x23;
+
+ for (i = j = 0; j < 4; j++) {
+ link->io.BasePort2 = com[j];
+ i = pcmcia_request_io(link->handle, &link->io);
+ if (i == CS_SUCCESS) break;
+ }
+ if (i != CS_SUCCESS) {
+ /* Fallback: turn off hard decode */
+ link->conf.ConfigIndex = 0x03;
+ link->io.NumPorts2 = 0;
+ i = pcmcia_request_io(link->handle, &link->io);
+ }
+ dev->base_addr = link->io.BasePort1 + 0x10;
+ return i;
+}
+
+static int osi_setup(dev_link_t *link, u_short manfid, u_short cardid)
+{
+ client_handle_t handle = link->handle;
+ struct net_device *dev = link->priv;
+ tuple_t tuple;
+ u_char buf[255];
+ int i;
+
+ tuple.Attributes = TUPLE_RETURN_COMMON;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = sizeof(buf);
+ tuple.TupleOffset = 0;
+
+ /* Read the station address from tuple 0x90, subtuple 0x04 */
+ tuple.DesiredTuple = 0x90;
+ i = pcmcia_get_first_tuple(handle, &tuple);
+ while (i == CS_SUCCESS) {
+ i = pcmcia_get_tuple_data(handle, &tuple);
+ if ((i != CS_SUCCESS) || (buf[0] == 0x04))
+ break;
+ i = pcmcia_get_next_tuple(handle, &tuple);
+ }
+ if (i != CS_SUCCESS)
+ return -1;
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = buf[i+2];
+
+ if (((manfid == MANFID_OSITECH) &&
+ (cardid == PRODID_OSITECH_SEVEN)) ||
+ ((manfid == MANFID_PSION) &&
+ (cardid == PRODID_PSION_NET100))) {
+ /* Download the Seven of Diamonds firmware */
+ for (i = 0; i < sizeof(__Xilinx7OD); i++) {
+ outb(__Xilinx7OD[i], link->io.BasePort1+2);
+ udelay(50);
+ }
+ } else if (manfid == MANFID_OSITECH) {
+ /* Make sure both functions are powered up */
+ set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
+ /* Now, turn on the interrupt for both card functions */
+ set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
+ DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
+ inw(link->io.BasePort1 + OSITECH_AUI_PWR),
+ inw(link->io.BasePort1 + OSITECH_RESET_ISR));
+ }
+
+ return 0;
+}
+
+/*======================================================================
+
+ This verifies that the chip is some SMC91cXX variant, and returns
+ the revision code if successful. Otherwise, it returns -ENODEV.
+
+======================================================================*/
+
+static int check_sig(dev_link_t *link)
+{
+ struct net_device *dev = link->priv;
+ kio_addr_t ioaddr = dev->base_addr;
+ int width;
+ u_short s;
+
+ SMC_SELECT_BANK(1);
+ if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
+ /* Try powering up the chip */
+ outw(0, ioaddr + CONTROL);
+ mdelay(55);
+ }
+
+ /* Try setting bus width */
+ width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
+ s = inb(ioaddr + CONFIG);
+ if (width)
+ s |= CFG_16BIT;
+ else
+ s &= ~CFG_16BIT;
+ outb(s, ioaddr + CONFIG);
+
+ /* Check Base Address Register to make sure bus width is OK */
+ s = inw(ioaddr + BASE_ADDR);
+ if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
+ ((s >> 8) != (s & 0xff))) {
+ SMC_SELECT_BANK(3);
+ s = inw(ioaddr + REVISION);
+ return (s & 0xff);
+ }
+
+ if (width) {
+ event_callback_args_t args;
+ printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
+ args.client_data = link;
+ smc91c92_event(CS_EVENT_RESET_PHYSICAL, 0, &args);
+ pcmcia_release_io(link->handle, &link->io);
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ pcmcia_request_io(link->handle, &link->io);
+ smc91c92_event(CS_EVENT_CARD_RESET, 0, &args);
+ return check_sig(link);
+ }
+ return -ENODEV;
+}
+
+/*======================================================================
+
+ smc91c92_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_EXIT_TEST(ret, svc, label) \
+if (ret != CS_SUCCESS) { cs_error(link->handle, svc, ret); goto label; }
+
+static void smc91c92_config(dev_link_t *link)
+{
+ client_handle_t handle = link->handle;
+ struct net_device *dev = link->priv;
+ struct smc_private *smc = netdev_priv(dev);
+ tuple_t tuple;
+ cisparse_t parse;
+ u_short buf[32];
+ char *name;
+ int i, j, rev;
+ kio_addr_t ioaddr;
+ u_long mir;
+
+ DEBUG(0, "smc91c92_config(0x%p)\n", link);
+
+ tuple.Attributes = tuple.TupleOffset = 0;
+ tuple.TupleData = (cisdata_t *)buf;
+ tuple.TupleDataMax = sizeof(buf);
+
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ i = first_tuple(handle, &tuple, &parse);
+ CS_EXIT_TEST(i, ParseTuple, config_failed);
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ tuple.DesiredTuple = CISTPL_MANFID;
+ tuple.Attributes = TUPLE_RETURN_COMMON;
+ if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) {
+ smc->manfid = parse.manfid.manf;
+ smc->cardid = parse.manfid.card;
+ }
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+
+ if ((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid != PRODID_OSITECH_SEVEN)) {
+ i = osi_config(link);
+ } else if ((smc->manfid == MANFID_MOTOROLA) ||
+ ((smc->manfid == MANFID_MEGAHERTZ) &&
+ ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
+ (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
+ i = mhz_mfc_config(link);
+ } else {
+ i = smc_config(link);
+ }
+ CS_EXIT_TEST(i, RequestIO, config_failed);
+
+ i = pcmcia_request_irq(link->handle, &link->irq);
+ CS_EXIT_TEST(i, RequestIRQ, config_failed);
+ i = pcmcia_request_configuration(link->handle, &link->conf);
+ CS_EXIT_TEST(i, RequestConfiguration, config_failed);
+
+ if (smc->manfid == MANFID_MOTOROLA)
+ mot_config(link);
+
+ dev->irq = link->irq.AssignedIRQ;
+
+ if ((if_port >= 0) && (if_port <= 2))
+ dev->if_port = if_port;
+ else
+ printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
+
+ switch (smc->manfid) {
+ case MANFID_OSITECH:
+ case MANFID_PSION:
+ i = osi_setup(link, smc->manfid, smc->cardid); break;
+ case MANFID_SMC:
+ case MANFID_NEW_MEDIA:
+ i = smc_setup(link); break;
+ case 0x128: /* For broken Megahertz cards */
+ case MANFID_MEGAHERTZ:
+ i = mhz_setup(link); break;
+ case MANFID_MOTOROLA:
+ default: /* get the hw address from EEPROM */
+ i = mot_setup(link); break;
+ }
+
+ if (i != 0) {
+ printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
+ goto config_undo;
+ }
+
+ smc->duplex = 0;
+ smc->rx_ovrn = 0;
+
+ rev = check_sig(link);
+ name = "???";
+ if (rev > 0)
+ switch (rev >> 4) {
+ case 3: name = "92"; break;
+ case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
+ case 5: name = "95"; break;
+ case 7: name = "100"; break;
+ case 8: name = "100-FD"; break;
+ case 9: name = "110"; break;
+ }
+
+ ioaddr = dev->base_addr;
+ if (rev > 0) {
+ u_long mcr;
+ SMC_SELECT_BANK(0);
+ mir = inw(ioaddr + MEMINFO) & 0xff;
+ if (mir == 0xff) mir++;
+ /* Get scale factor for memory size */
+ mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
+ mir *= 128 * (1<<((mcr >> 9) & 7));
+ SMC_SELECT_BANK(1);
+ smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
+ smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
+ if (smc->manfid == MANFID_OSITECH)
+ smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
+ if ((rev >> 4) >= 7)
+ smc->cfg |= CFG_MII_SELECT;
+ } else
+ mir = 0;
+
+ if (smc->cfg & CFG_MII_SELECT) {
+ SMC_SELECT_BANK(3);
+
+ for (i = 0; i < 32; i++) {
+ j = mdio_read(dev, i, 1);
+ if ((j != 0) && (j != 0xffff)) break;
+ }
+ smc->mii_if.phy_id = (i < 32) ? i : -1;
+
+ SMC_SELECT_BANK(0);
+ }
+
+ link->dev = &smc->node;
+ link->state &= ~DEV_CONFIG_PENDING;
+ SET_NETDEV_DEV(dev, &handle_to_dev(handle));
+
+ if (register_netdev(dev) != 0) {
+ printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
+ link->dev = NULL;
+ goto config_undo;
+ }
+
+ strcpy(smc->node.dev_name, dev->name);
+
+ printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
+ "hw_addr ", dev->name, name, (rev & 0x0f), dev->base_addr,
+ dev->irq);
+ for (i = 0; i < 6; i++)
+ printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
+
+ if (rev > 0) {
+ if (mir & 0x3ff)
+ printk(KERN_INFO " %lu byte", mir);
+ else
+ printk(KERN_INFO " %lu kb", mir>>10);
+ printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
+ "MII" : if_names[dev->if_port]);
+ }
+
+ if (smc->cfg & CFG_MII_SELECT) {
+ if (smc->mii_if.phy_id != -1) {
+ DEBUG(0, " MII transceiver at index %d, status %x.\n",
+ smc->mii_if.phy_id, j);
+ } else {
+ printk(KERN_NOTICE " No MII transceivers found!\n");
+ }
+ }
+
+ return;
+
+config_undo:
+ unregister_netdev(dev);
+config_failed: /* CS_EXIT_TEST() calls jump to here... */
+ smc91c92_release(link);
+ link->state &= ~DEV_CONFIG_PENDING;
+
+} /* smc91c92_config */
+
+/*======================================================================
+
+ After a card is removed, smc91c92_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 smc91c92_release(dev_link_t *link)
+{
+
+ DEBUG(0, "smc91c92_release(0x%p)\n", link);
+
+ pcmcia_release_configuration(link->handle);
+ pcmcia_release_io(link->handle, &link->io);
+ pcmcia_release_irq(link->handle, &link->irq);
+ if (link->win) {
+ struct net_device *dev = link->priv;
+ struct smc_private *smc = netdev_priv(dev);
+ iounmap(smc->base);
+ pcmcia_release_window(link->win);
+ }
+
+ link->state &= ~DEV_CONFIG;
+}
+
+/*======================================================================
+
+ 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 smc91c92_event(event_t event, int priority,
+ event_callback_args_t *args)
+{
+ dev_link_t *link = args->client_data;
+ struct net_device *dev = link->priv;
+ struct smc_private *smc = netdev_priv(dev);
+ int i;
+
+ DEBUG(1, "smc91c92_event(0x%06x)\n", event);
+
+ switch (event) {
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if (link->state & DEV_CONFIG)
+ netif_device_detach(dev);
+ break;
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ smc91c92_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)
+ netif_device_detach(dev);
+ pcmcia_release_configuration(link->handle);
+ }
+ break;
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if (link->state & DEV_CONFIG) {
+ if ((smc->manfid == MANFID_MEGAHERTZ) &&
+ (smc->cardid == PRODID_MEGAHERTZ_EM3288))
+ mhz_3288_power(link);
+ pcmcia_request_configuration(link->handle, &link->conf);
+ if (smc->manfid == MANFID_MOTOROLA)
+ mot_config(link);
+ if ((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid != PRODID_OSITECH_SEVEN)) {
+ /* Power up the card and enable interrupts */
+ set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
+ set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
+ }
+ if (((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid == PRODID_OSITECH_SEVEN)) ||
+ ((smc->manfid == MANFID_PSION) &&
+ (smc->cardid == PRODID_PSION_NET100))) {
+ /* Download the Seven of Diamonds firmware */
+ for (i = 0; i < sizeof(__Xilinx7OD); i++) {
+ outb(__Xilinx7OD[i], link->io.BasePort1+2);
+ udelay(50);
+ }
+ }
+ if (link->open) {
+ smc_reset(dev);
+ netif_device_attach(dev);
+ }
+ }
+ break;
+ }
+ return 0;
+} /* smc91c92_event */
+
+/*======================================================================
+
+ MII interface support for SMC91cXX based cards
+======================================================================*/
+
+#define MDIO_SHIFT_CLK 0x04
+#define MDIO_DATA_OUT 0x01
+#define MDIO_DIR_WRITE 0x08
+#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
+#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
+#define MDIO_DATA_READ 0x02
+
+static void mdio_sync(kio_addr_t addr)
+{
+ int bits;
+ for (bits = 0; bits < 32; bits++) {
+ outb(MDIO_DATA_WRITE1, addr);
+ outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
+ }
+}
+
+static int mdio_read(struct net_device *dev, int phy_id, int loc)
+{
+ kio_addr_t addr = dev->base_addr + MGMT;
+ u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
+ int i, retval = 0;
+
+ mdio_sync(addr);
+ for (i = 13; i >= 0; i--) {
+ int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
+ outb(dat, addr);
+ outb(dat | MDIO_SHIFT_CLK, addr);
+ }
+ for (i = 19; i > 0; i--) {
+ outb(0, addr);
+ retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
+ outb(MDIO_SHIFT_CLK, addr);
+ }
+ return (retval>>1) & 0xffff;
+}
+
+static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
+{
+ kio_addr_t addr = dev->base_addr + MGMT;
+ u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
+ int i;
+
+ mdio_sync(addr);
+ for (i = 31; i >= 0; i--) {
+ int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
+ outb(dat, addr);
+ outb(dat | MDIO_SHIFT_CLK, addr);
+ }
+ for (i = 1; i >= 0; i--) {
+ outb(0, addr);
+ outb(MDIO_SHIFT_CLK, addr);
+ }
+}
+
+/*======================================================================
+
+ The driver core code, most of which should be common with a
+ non-PCMCIA implementation.
+
+======================================================================*/
+
+#ifdef PCMCIA_DEBUG
+static void smc_dump(struct net_device *dev)
+{
+ kio_addr_t ioaddr = dev->base_addr;
+ u_short i, w, save;
+ save = inw(ioaddr + BANK_SELECT);
+ for (w = 0; w < 4; w++) {
+ SMC_SELECT_BANK(w);
+ printk(KERN_DEBUG "bank %d: ", w);
+ for (i = 0; i < 14; i += 2)
+ printk(" %04x", inw(ioaddr + i));
+ printk("\n");
+ }
+ outw(save, ioaddr + BANK_SELECT);
+}
+#endif
+
+static int smc_open(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ dev_link_t *link = &smc->link;
+
+#ifdef PCMCIA_DEBUG
+ DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
+ dev->name, dev, inw(dev->base_addr + BANK_SELECT));
+ if (pc_debug > 1) smc_dump(dev);
+#endif
+
+ /* Check that the PCMCIA card is still here. */
+ if (!DEV_OK(link))
+ return -ENODEV;
+ /* Physical device present signature. */
+ if (check_sig(link) < 0) {
+ printk("smc91c92_cs: Yikes! Bad chip signature!\n");
+ return -ENODEV;
+ }
+ link->open++;
+
+ netif_start_queue(dev);
+ smc->saved_skb = NULL;
+ smc->packets_waiting = 0;
+
+ smc_reset(dev);
+ init_timer(&smc->media);
+ smc->media.function = &media_check;
+ smc->media.data = (u_long) dev;
+ smc->media.expires = jiffies + HZ;
+ add_timer(&smc->media);
+
+ return 0;
+} /* smc_open */
+
+/*====================================================================*/
+
+static int smc_close(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ dev_link_t *link = &smc->link;
+ kio_addr_t ioaddr = dev->base_addr;
+
+ DEBUG(0, "%s: smc_close(), status %4.4x.\n",
+ dev->name, inw(ioaddr + BANK_SELECT));
+
+ netif_stop_queue(dev);
+
+ /* Shut off all interrupts, and turn off the Tx and Rx sections.
+ Don't bother to check for chip present. */
+ SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
+ outw(0, ioaddr + INTERRUPT);
+ SMC_SELECT_BANK(0);
+ mask_bits(0xff00, ioaddr + RCR);
+ mask_bits(0xff00, ioaddr + TCR);
+
+ /* Put the chip into power-down mode. */
+ SMC_SELECT_BANK(1);
+ outw(CTL_POWERDOWN, ioaddr + CONTROL );
+
+ link->open--;
+ del_timer_sync(&smc->media);
+
+ return 0;
+} /* smc_close */
+
+/*======================================================================
+
+ Transfer a packet to the hardware and trigger the packet send.
+ This may be called at either from either the Tx queue code
+ or the interrupt handler.
+
+======================================================================*/
+
+static void smc_hardware_send_packet(struct net_device * dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ struct sk_buff *skb = smc->saved_skb;
+ kio_addr_t ioaddr = dev->base_addr;
+ u_char packet_no;
+
+ if (!skb) {
+ printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
+ return;
+ }
+
+ /* There should be a packet slot waiting. */
+ packet_no = inw(ioaddr + PNR_ARR) >> 8;
+ if (packet_no & 0x80) {
+ /* If not, there is a hardware problem! Likely an ejected card. */
+ printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
+ " failed, status %#2.2x.\n", dev->name, packet_no);
+ dev_kfree_skb_irq(skb);
+ smc->saved_skb = NULL;
+ netif_start_queue(dev);
+ return;
+ }
+
+ smc->stats.tx_bytes += skb->len;
+ /* The card should use the just-allocated buffer. */
+ outw(packet_no, ioaddr + PNR_ARR);
+ /* point to the beginning of the packet */
+ outw(PTR_AUTOINC , ioaddr + POINTER);
+
+ /* Send the packet length (+6 for status, length and ctl byte)
+ and the status word (set to zeros). */
+ {
+ u_char *buf = skb->data;
+ u_int length = skb->len; /* The chip will pad to ethernet min. */
+
+ DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
+ dev->name, length);
+
+ /* send the packet length: +6 for status word, length, and ctl */
+ outw(0, ioaddr + DATA_1);
+ outw(length + 6, ioaddr + DATA_1);
+ outsw(ioaddr + DATA_1, buf, length >> 1);
+
+ /* The odd last byte, if there is one, goes in the control word. */
+ outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
+ }
+
+ /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
+ outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
+ (inw(ioaddr + INTERRUPT) & 0xff00),
+ ioaddr + INTERRUPT);
+
+ /* The chip does the rest of the work. */
+ outw(MC_ENQUEUE , ioaddr + MMU_CMD);
+
+ smc->saved_skb = NULL;
+ dev_kfree_skb_irq(skb);
+ dev->trans_start = jiffies;
+ netif_start_queue(dev);
+ return;
+}
+
+/*====================================================================*/
+
+static void smc_tx_timeout(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+
+ printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
+ "Tx_status %2.2x status %4.4x.\n",
+ dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
+ smc->stats.tx_errors++;
+ smc_reset(dev);
+ dev->trans_start = jiffies;
+ smc->saved_skb = NULL;
+ netif_wake_queue(dev);
+}
+
+static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u_short num_pages;
+ short time_out, ir;
+
+ netif_stop_queue(dev);
+
+ DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
+ " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
+
+ if (smc->saved_skb) {
+ /* THIS SHOULD NEVER HAPPEN. */
+ smc->stats.tx_aborted_errors++;
+ printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
+ dev->name);
+ return 1;
+ }
+ smc->saved_skb = skb;
+
+ num_pages = skb->len >> 8;
+
+ if (num_pages > 7) {
+ printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
+ dev_kfree_skb (skb);
+ smc->saved_skb = NULL;
+ smc->stats.tx_dropped++;
+ return 0; /* Do not re-queue this packet. */
+ }
+ /* A packet is now waiting. */
+ smc->packets_waiting++;
+
+ SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
+
+ /* need MC_RESET to keep the memory consistent. errata? */
+ if (smc->rx_ovrn) {
+ outw(MC_RESET, ioaddr + MMU_CMD);
+ smc->rx_ovrn = 0;
+ }
+
+ /* Allocate the memory; send the packet now if we win. */
+ outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
+ for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
+ ir = inw(ioaddr+INTERRUPT);
+ if (ir & IM_ALLOC_INT) {
+ /* Acknowledge the interrupt, send the packet. */
+ outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
+ smc_hardware_send_packet(dev); /* Send the packet now.. */
+ return 0;
+ }
+ }
+
+ /* Otherwise defer until the Tx-space-allocated interrupt. */
+ DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
+ outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
+
+ return 0;
+}
+
+/*======================================================================
+
+ Handle a Tx anomolous event. Entered while in Window 2.
+
+======================================================================*/
+
+static void smc_tx_err(struct net_device * dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
+ int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
+ int tx_status;
+
+ /* select this as the packet to read from */
+ outw(packet_no, ioaddr + PNR_ARR);
+
+ /* read the first word from this packet */
+ outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
+
+ tx_status = inw(ioaddr + DATA_1);
+
+ smc->stats.tx_errors++;
+ if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
+ if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
+ if (tx_status & TS_16COL) {
+ smc->stats.tx_aborted_errors++;
+ smc->tx_err++;
+ }
+
+ if (tx_status & TS_SUCCESS) {
+ printk(KERN_NOTICE "%s: Successful packet caused error "
+ "interrupt?\n", dev->name);
+ }
+ /* re-enable transmit */
+ SMC_SELECT_BANK(0);
+ outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
+ SMC_SELECT_BANK(2);
+
+ outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
+
+ /* one less packet waiting for me */
+ smc->packets_waiting--;
+
+ outw(saved_packet, ioaddr + PNR_ARR);
+ return;
+}
+
+/*====================================================================*/
+
+static void smc_eph_irq(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u_short card_stats, ephs;
+
+ SMC_SELECT_BANK(0);
+ ephs = inw(ioaddr + EPH);
+ DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
+ " %4.4x.\n", dev->name, ephs);
+ /* Could be a counter roll-over warning: update stats. */
+ card_stats = inw(ioaddr + COUNTER);
+ /* single collisions */
+ smc->stats.collisions += card_stats & 0xF;
+ card_stats >>= 4;
+ /* multiple collisions */
+ smc->stats.collisions += card_stats & 0xF;
+#if 0 /* These are for when linux supports these statistics */
+ card_stats >>= 4; /* deferred */
+ card_stats >>= 4; /* excess deferred */
+#endif
+ /* If we had a transmit error we must re-enable the transmitter. */
+ outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
+
+ /* Clear a link error interrupt. */
+ SMC_SELECT_BANK(1);
+ outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
+ outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
+ ioaddr + CONTROL);
+ SMC_SELECT_BANK(2);
+}
+
+/*====================================================================*/
+
+static irqreturn_t smc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct net_device *dev = dev_id;
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr;
+ u_short saved_bank, saved_pointer, mask, status;
+ unsigned int handled = 1;
+ char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
+
+ if (!netif_device_present(dev))
+ return IRQ_NONE;
+
+ ioaddr = dev->base_addr;
+
+ DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
+ irq, ioaddr);
+
+ smc->watchdog = 0;
+ saved_bank = inw(ioaddr + BANK_SELECT);
+ if ((saved_bank & 0xff00) != 0x3300) {
+ /* The device does not exist -- the card could be off-line, or
+ maybe it has been ejected. */
+ DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
+ "/ejected device.\n", dev->name, irq);
+ handled = 0;
+ goto irq_done;
+ }
+
+ SMC_SELECT_BANK(2);
+ saved_pointer = inw(ioaddr + POINTER);
+ mask = inw(ioaddr + INTERRUPT) >> 8;
+ /* clear all interrupts */
+ outw(0, ioaddr + INTERRUPT);
+
+ do { /* read the status flag, and mask it */
+ status = inw(ioaddr + INTERRUPT) & 0xff;
+ DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
+ status, mask);
+ if ((status & mask) == 0) {
+ if (bogus_cnt == INTR_WORK)
+ handled = 0;
+ break;
+ }
+ if (status & IM_RCV_INT) {
+ /* Got a packet(s). */
+ smc_rx(dev);
+ }
+ if (status & IM_TX_INT) {
+ smc_tx_err(dev);
+ outw(IM_TX_INT, ioaddr + INTERRUPT);
+ }
+ status &= mask;
+ if (status & IM_TX_EMPTY_INT) {
+ outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
+ mask &= ~IM_TX_EMPTY_INT;
+ smc->stats.tx_packets += smc->packets_waiting;
+ smc->packets_waiting = 0;
+ }
+ if (status & IM_ALLOC_INT) {
+ /* Clear this interrupt so it doesn't happen again */
+ mask &= ~IM_ALLOC_INT;
+
+ smc_hardware_send_packet(dev);
+
+ /* enable xmit interrupts based on this */
+ mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
+
+ /* and let the card send more packets to me */
+ netif_wake_queue(dev);
+ }
+ if (status & IM_RX_OVRN_INT) {
+ smc->stats.rx_errors++;
+ smc->stats.rx_fifo_errors++;
+ if (smc->duplex)
+ smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
+ outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
+ }
+ if (status & IM_EPH_INT)
+ smc_eph_irq(dev);
+ } while (--bogus_cnt);
+
+ DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
+ " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
+
+ /* restore state register */
+ outw((mask<<8), ioaddr + INTERRUPT);
+ outw(saved_pointer, ioaddr + POINTER);
+ SMC_SELECT_BANK(saved_bank);
+
+ DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
+
+irq_done:
+
+ if ((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid != PRODID_OSITECH_SEVEN)) {
+ /* Retrigger interrupt if needed */
+ mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
+ set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
+ }
+ if (smc->manfid == MANFID_MOTOROLA) {
+ u_char cor;
+ cor = readb(smc->base + MOT_UART + CISREG_COR);
+ writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
+ writeb(cor, smc->base + MOT_UART + CISREG_COR);
+ cor = readb(smc->base + MOT_LAN + CISREG_COR);
+ writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
+ writeb(cor, smc->base + MOT_LAN + CISREG_COR);
+ }
+#ifdef DOES_NOT_WORK
+ if (smc->base != NULL) { /* Megahertz MFC's */
+ readb(smc->base+MEGAHERTZ_ISR);
+ readb(smc->base+MEGAHERTZ_ISR);
+ }
+#endif
+ return IRQ_RETVAL(handled);
+}
+
+/*====================================================================*/
+
+static void smc_rx(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ int rx_status;
+ int packet_length; /* Caution: not frame length, rather words
+ to transfer from the chip. */
+
+ /* Assertion: we are in Window 2. */
+
+ if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
+ printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
+ dev->name);
+ return;
+ }
+
+ /* Reset the read pointer, and read the status and packet length. */
+ outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
+ rx_status = inw(ioaddr + DATA_1);
+ packet_length = inw(ioaddr + DATA_1) & 0x07ff;
+
+ DEBUG(2, "%s: Receive status %4.4x length %d.\n",
+ dev->name, rx_status, packet_length);
+
+ if (!(rx_status & RS_ERRORS)) {
+ /* do stuff to make a new packet */
+ struct sk_buff *skb;
+
+ /* Note: packet_length adds 5 or 6 extra bytes here! */
+ skb = dev_alloc_skb(packet_length+2);
+
+ if (skb == NULL) {
+ DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
+ smc->stats.rx_dropped++;
+ outw(MC_RELEASE, ioaddr + MMU_CMD);
+ return;
+ }
+
+ packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
+ skb_reserve(skb, 2);
+ insw(ioaddr+DATA_1, skb_put(skb, packet_length),
+ (packet_length+1)>>1);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ skb->dev = dev;
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ smc->stats.rx_packets++;
+ smc->stats.rx_bytes += packet_length;
+ if (rx_status & RS_MULTICAST)
+ smc->stats.multicast++;
+ } else {
+ /* error ... */
+ smc->stats.rx_errors++;
+
+ if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
+ if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
+ smc->stats.rx_length_errors++;
+ if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
+ }
+ /* Let the MMU free the memory of this packet. */
+ outw(MC_RELEASE, ioaddr + MMU_CMD);
+
+ return;
+}
+
+/*====================================================================*/
+
+static struct net_device_stats *smc_get_stats(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ /* Nothing to update - the 91c92 is a pretty primative chip. */
+ return &smc->stats;
+}
+
+/*======================================================================
+
+ Calculate values for the hardware multicast filter hash table.
+
+======================================================================*/
+
+static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
+ u_char *multicast_table)
+{
+ struct dev_mc_list *mc_addr;
+
+ for (mc_addr = addrs; mc_addr && --count > 0; mc_addr = mc_addr->next) {
+ u_int position = ether_crc(6, mc_addr->dmi_addr);
+#ifndef final_version /* Verify multicast address. */
+ if ((mc_addr->dmi_addr[0] & 1) == 0)
+ continue;
+#endif
+ multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
+ }
+}
+
+/*======================================================================
+
+ Set the receive mode.
+
+ This routine is used by both the protocol level to notify us of
+ promiscuous/multicast mode changes, and by the open/reset code to
+ initialize the Rx registers. We always set the multicast list and
+ leave the receiver running.
+
+======================================================================*/
+
+static void set_rx_mode(struct net_device *dev)
+{
+ kio_addr_t ioaddr = dev->base_addr;
+ struct smc_private *smc = netdev_priv(dev);
+ u_int multicast_table[ 2 ] = { 0, };
+ unsigned long flags;
+ u_short rx_cfg_setting;
+
+ if (dev->flags & IFF_PROMISC) {
+ printk(KERN_NOTICE "%s: setting Rx mode to promiscuous.\n", dev->name);
+ rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
+ } else if (dev->flags & IFF_ALLMULTI)
+ rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
+ else {
+ if (dev->mc_count) {
+ fill_multicast_tbl(dev->mc_count, dev->mc_list,
+ (u_char *)multicast_table);
+ }
+ rx_cfg_setting = RxStripCRC | RxEnable;
+ }
+
+ /* Load MC table and Rx setting into the chip without interrupts. */
+ spin_lock_irqsave(&smc->lock, flags);
+ SMC_SELECT_BANK(3);
+ outl(multicast_table[0], ioaddr + MULTICAST0);
+ outl(multicast_table[1], ioaddr + MULTICAST4);
+ SMC_SELECT_BANK(0);
+ outw(rx_cfg_setting, ioaddr + RCR);
+ SMC_SELECT_BANK(2);
+ spin_unlock_irqrestore(&smc->lock, flags);
+
+ return;
+}
+
+/*======================================================================
+
+ Senses when a card's config changes. Here, it's coax or TP.
+
+======================================================================*/
+
+static int s9k_config(struct net_device *dev, struct ifmap *map)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
+ if (smc->cfg & CFG_MII_SELECT)
+ return -EOPNOTSUPP;
+ else if (map->port > 2)
+ return -EINVAL;
+ dev->if_port = map->port;
+ printk(KERN_INFO "%s: switched to %s port\n",
+ dev->name, if_names[dev->if_port]);
+ smc_reset(dev);
+ }
+ return 0;
+}
+
+/*======================================================================
+
+ Reset the chip, reloading every register that might be corrupted.
+
+======================================================================*/
+
+/*
+ Set transceiver type, perhaps to something other than what the user
+ specified in dev->if_port.
+*/
+static void smc_set_xcvr(struct net_device *dev, int if_port)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u_short saved_bank;
+
+ saved_bank = inw(ioaddr + BANK_SELECT);
+ SMC_SELECT_BANK(1);
+ if (if_port == 2) {
+ outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
+ if ((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid != PRODID_OSITECH_SEVEN))
+ set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
+ smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
+ } else {
+ outw(smc->cfg, ioaddr + CONFIG);
+ if ((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid != PRODID_OSITECH_SEVEN))
+ mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
+ smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
+ }
+ SMC_SELECT_BANK(saved_bank);
+}
+
+static void smc_reset(struct net_device *dev)
+{
+ kio_addr_t ioaddr = dev->base_addr;
+ struct smc_private *smc = netdev_priv(dev);
+ int i;
+
+ DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
+
+ /* The first interaction must be a write to bring the chip out
+ of sleep mode. */
+ SMC_SELECT_BANK(0);
+ /* Reset the chip. */
+ outw(RCR_SOFTRESET, ioaddr + RCR);
+ udelay(10);
+
+ /* Clear the transmit and receive configuration registers. */
+ outw(RCR_CLEAR, ioaddr + RCR);
+ outw(TCR_CLEAR, ioaddr + TCR);
+
+ /* Set the Window 1 control, configuration and station addr registers.
+ No point in writing the I/O base register ;-> */
+ SMC_SELECT_BANK(1);
+ /* Automatically release succesfully transmitted packets,
+ Accept link errors, counter and Tx error interrupts. */
+ outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
+ ioaddr + CONTROL);
+ smc_set_xcvr(dev, dev->if_port);
+ if ((smc->manfid == MANFID_OSITECH) &&
+ (smc->cardid != PRODID_OSITECH_SEVEN))
+ outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
+ (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
+ ioaddr - 0x10 + OSITECH_AUI_PWR);
+
+ /* Fill in the physical address. The databook is wrong about the order! */
+ for (i = 0; i < 6; i += 2)
+ outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
+ ioaddr + ADDR0 + i);
+
+ /* Reset the MMU */
+ SMC_SELECT_BANK(2);
+ outw(MC_RESET, ioaddr + MMU_CMD);
+ outw(0, ioaddr + INTERRUPT);
+
+ /* Re-enable the chip. */
+ SMC_SELECT_BANK(0);
+ outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
+ TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
+ set_rx_mode(dev);
+
+ if (smc->cfg & CFG_MII_SELECT) {
+ SMC_SELECT_BANK(3);
+
+ /* Reset MII */
+ mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
+
+ /* Advertise 100F, 100H, 10F, 10H */
+ mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
+
+ /* Restart MII autonegotiation */
+ mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
+ mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
+ }
+
+ /* Enable interrupts. */
+ SMC_SELECT_BANK(2);
+ outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
+ ioaddr + INTERRUPT);
+}
+
+/*======================================================================
+
+ Media selection timer routine
+
+======================================================================*/
+
+static void media_check(u_long arg)
+{
+ struct net_device *dev = (struct net_device *) arg;
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u_short i, media, saved_bank;
+ u_short link;
+
+ saved_bank = inw(ioaddr + BANK_SELECT);
+
+ if (!netif_device_present(dev))
+ goto reschedule;
+
+ SMC_SELECT_BANK(2);
+
+ /* need MC_RESET to keep the memory consistent. errata? */
+ if (smc->rx_ovrn) {
+ outw(MC_RESET, ioaddr + MMU_CMD);
+ smc->rx_ovrn = 0;
+ }
+ i = inw(ioaddr + INTERRUPT);
+ SMC_SELECT_BANK(0);
+ media = inw(ioaddr + EPH) & EPH_LINK_OK;
+ SMC_SELECT_BANK(1);
+ media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
+
+ /* Check for pending interrupt with watchdog flag set: with
+ this, we can limp along even if the interrupt is blocked */
+ if (smc->watchdog++ && ((i>>8) & i)) {
+ if (!smc->fast_poll)
+ printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
+ smc_interrupt(dev->irq, smc, NULL);
+ smc->fast_poll = HZ;
+ }
+ if (smc->fast_poll) {
+ smc->fast_poll--;
+ smc->media.expires = jiffies + HZ/100;
+ add_timer(&smc->media);
+ SMC_SELECT_BANK(saved_bank);
+ return;
+ }
+
+ if (smc->cfg & CFG_MII_SELECT) {
+ if (smc->mii_if.phy_id < 0)
+ goto reschedule;
+
+ SMC_SELECT_BANK(3);
+ link = mdio_read(dev, smc->mii_if.phy_id, 1);
+ if (!link || (link == 0xffff)) {
+ printk(KERN_INFO "%s: MII is missing!\n", dev->name);
+ smc->mii_if.phy_id = -1;
+ goto reschedule;
+ }
+
+ link &= 0x0004;
+ if (link != smc->link_status) {
+ u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
+ printk(KERN_INFO "%s: %s link beat\n", dev->name,
+ (link) ? "found" : "lost");
+ smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
+ ? TCR_FDUPLX : 0);
+ if (link) {
+ printk(KERN_INFO "%s: autonegotiation complete: "
+ "%sbaseT-%cD selected\n", dev->name,
+ ((p & 0x0180) ? "100" : "10"),
+ (smc->duplex ? 'F' : 'H'));
+ }
+ SMC_SELECT_BANK(0);
+ outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
+ smc->link_status = link;
+ }
+ goto reschedule;
+ }
+
+ /* Ignore collisions unless we've had no rx's recently */
+ if (jiffies - dev->last_rx > HZ) {
+ if (smc->tx_err || (smc->media_status & EPH_16COL))
+ media |= EPH_16COL;
+ }
+ smc->tx_err = 0;
+
+ if (media != smc->media_status) {
+ if ((media & smc->media_status & 1) &&
+ ((smc->media_status ^ media) & EPH_LINK_OK))
+ printk(KERN_INFO "%s: %s link beat\n", dev->name,
+ (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
+ else if ((media & smc->media_status & 2) &&
+ ((smc->media_status ^ media) & EPH_16COL))
+ printk(KERN_INFO "%s: coax cable %s\n", dev->name,
+ (media & EPH_16COL ? "problem" : "ok"));
+ if (dev->if_port == 0) {
+ if (media & 1) {
+ if (media & EPH_LINK_OK)
+ printk(KERN_INFO "%s: flipped to 10baseT\n",
+ dev->name);
+ else
+ smc_set_xcvr(dev, 2);
+ } else {
+ if (media & EPH_16COL)
+ smc_set_xcvr(dev, 1);
+ else
+ printk(KERN_INFO "%s: flipped to 10base2\n",
+ dev->name);
+ }
+ }
+ smc->media_status = media;
+ }
+
+reschedule:
+ smc->media.expires = jiffies + HZ;
+ add_timer(&smc->media);
+ SMC_SELECT_BANK(saved_bank);
+}
+
+static int smc_link_ok(struct net_device *dev)
+{
+ kio_addr_t ioaddr = dev->base_addr;
+ struct smc_private *smc = netdev_priv(dev);
+
+ if (smc->cfg & CFG_MII_SELECT) {
+ return mii_link_ok(&smc->mii_if);
+ } else {
+ SMC_SELECT_BANK(0);
+ return inw(ioaddr + EPH) & EPH_LINK_OK;
+ }
+}
+
+static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ u16 tmp;
+ kio_addr_t ioaddr = dev->base_addr;
+
+ ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
+ SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
+
+ SMC_SELECT_BANK(1);
+ tmp = inw(ioaddr + CONFIG);
+ ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->speed = SPEED_10;
+ ecmd->phy_address = ioaddr + MGMT;
+
+ SMC_SELECT_BANK(0);
+ tmp = inw(ioaddr + TCR);
+ ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
+
+ return 0;
+}
+
+static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ u16 tmp;
+ kio_addr_t ioaddr = dev->base_addr;
+
+ if (ecmd->speed != SPEED_10)
+ return -EINVAL;
+ if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
+ return -EINVAL;
+ if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
+ return -EINVAL;
+ if (ecmd->transceiver != XCVR_INTERNAL)
+ return -EINVAL;
+
+ if (ecmd->port == PORT_AUI)
+ smc_set_xcvr(dev, 1);
+ else
+ smc_set_xcvr(dev, 0);
+
+ SMC_SELECT_BANK(0);
+ tmp = inw(ioaddr + TCR);
+ if (ecmd->duplex == DUPLEX_FULL)
+ tmp |= TCR_FDUPLX;
+ else
+ tmp &= ~TCR_FDUPLX;
+ outw(tmp, ioaddr + TCR);
+
+ return 0;
+}
+
+static int check_if_running(struct net_device *dev)
+{
+ if (!netif_running(dev))
+ return -EINVAL;
+ return 0;
+}
+
+static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+}
+
+static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u16 saved_bank = inw(ioaddr + BANK_SELECT);
+ int ret;
+
+ SMC_SELECT_BANK(3);
+ spin_lock_irq(&smc->lock);
+ if (smc->cfg & CFG_MII_SELECT)
+ ret = mii_ethtool_gset(&smc->mii_if, ecmd);
+ else
+ ret = smc_netdev_get_ecmd(dev, ecmd);
+ spin_unlock_irq(&smc->lock);
+ SMC_SELECT_BANK(saved_bank);
+ return ret;
+}
+
+static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u16 saved_bank = inw(ioaddr + BANK_SELECT);
+ int ret;
+
+ SMC_SELECT_BANK(3);
+ spin_lock_irq(&smc->lock);
+ if (smc->cfg & CFG_MII_SELECT)
+ ret = mii_ethtool_sset(&smc->mii_if, ecmd);
+ else
+ ret = smc_netdev_set_ecmd(dev, ecmd);
+ spin_unlock_irq(&smc->lock);
+ SMC_SELECT_BANK(saved_bank);
+ return ret;
+}
+
+static u32 smc_get_link(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ kio_addr_t ioaddr = dev->base_addr;
+ u16 saved_bank = inw(ioaddr + BANK_SELECT);
+ u32 ret;
+
+ SMC_SELECT_BANK(3);
+ spin_lock_irq(&smc->lock);
+ ret = smc_link_ok(dev);
+ spin_unlock_irq(&smc->lock);
+ SMC_SELECT_BANK(saved_bank);
+ return ret;
+}
+
+#ifdef PCMCIA_DEBUG
+static u32 smc_get_msglevel(struct net_device *dev)
+{
+ return pc_debug;
+}
+
+static void smc_set_msglevel(struct net_device *dev, u32 val)
+{
+ pc_debug = val;
+}
+#endif
+
+static int smc_nway_reset(struct net_device *dev)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ if (smc->cfg & CFG_MII_SELECT) {
+ kio_addr_t ioaddr = dev->base_addr;
+ u16 saved_bank = inw(ioaddr + BANK_SELECT);
+ int res;
+
+ SMC_SELECT_BANK(3);
+ res = mii_nway_restart(&smc->mii_if);
+ SMC_SELECT_BANK(saved_bank);
+
+ return res;
+ } else
+ return -EOPNOTSUPP;
+}
+
+static struct ethtool_ops ethtool_ops = {
+ .begin = check_if_running,
+ .get_drvinfo = smc_get_drvinfo,
+ .get_settings = smc_get_settings,
+ .set_settings = smc_set_settings,
+ .get_link = smc_get_link,
+#ifdef PCMCIA_DEBUG
+ .get_msglevel = smc_get_msglevel,
+ .set_msglevel = smc_set_msglevel,
+#endif
+ .nway_reset = smc_nway_reset,
+};
+
+static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct smc_private *smc = netdev_priv(dev);
+ struct mii_ioctl_data *mii = if_mii(rq);
+ int rc = 0;
+ u16 saved_bank;
+ kio_addr_t ioaddr = dev->base_addr;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irq(&smc->lock);
+ saved_bank = inw(ioaddr + BANK_SELECT);
+ SMC_SELECT_BANK(3);
+ rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
+ SMC_SELECT_BANK(saved_bank);
+ spin_unlock_irq(&smc->lock);
+ return rc;
+}
+
+static struct pcmcia_driver smc91c92_cs_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "smc91c92_cs",
+ },
+ .attach = smc91c92_attach,
+ .detach = smc91c92_detach,
+};
+
+static int __init init_smc91c92_cs(void)
+{
+ return pcmcia_register_driver(&smc91c92_cs_driver);
+}
+
+static void __exit exit_smc91c92_cs(void)
+{
+ pcmcia_unregister_driver(&smc91c92_cs_driver);
+ BUG_ON(dev_list != NULL);
+}
+
+module_init(init_smc91c92_cs);
+module_exit(exit_smc91c92_cs);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-17 14:25:35 +0000