+++ /dev/null
-/*******************************************************************************
- *
- * Linux ThunderLAN Driver
- *
- * tlan.c
- * by James Banks
- *
- * (C) 1997-1998 Caldera, Inc.
- * (C) 1998 James Banks
- * (C) 1999-2001 Torben Mathiasen
- * (C) 2002 Samuel Chessman
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- ** Useful (if not required) reading:
- *
- * Texas Instruments, ThunderLAN Programmer's Guide,
- * TI Literature Number SPWU013A
- * available in PDF format from www.ti.com
- * Level One, LXT901 and LXT970 Data Sheets
- * available in PDF format from www.level1.com
- * National Semiconductor, DP83840A Data Sheet
- * available in PDF format from www.national.com
- * Microchip Technology, 24C01A/02A/04A Data Sheet
- * available in PDF format from www.microchip.com
- *
- ******************************************************************************/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/hardirq.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/eisa.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <linux/mii.h>
-
-#include "tlan.h"
-
-
-/* For removing EISA devices */
-static struct net_device *tlan_eisa_devices;
-
-static int tlan_devices_installed;
-
-/* Set speed, duplex and aui settings */
-static int aui[MAX_TLAN_BOARDS];
-static int duplex[MAX_TLAN_BOARDS];
-static int speed[MAX_TLAN_BOARDS];
-static int boards_found;
-module_param_array(aui, int, NULL, 0);
-module_param_array(duplex, int, NULL, 0);
-module_param_array(speed, int, NULL, 0);
-MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
-MODULE_PARM_DESC(duplex,
- "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
-MODULE_PARM_DESC(speed, "ThunderLAN port speed setting(s) (0,10,100)");
-
-MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
-MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
-MODULE_LICENSE("GPL");
-
-
-/* Define this to enable Link beat monitoring */
-#undef MONITOR
-
-/* Turn on debugging. See Documentation/networking/tlan.txt for details */
-static int debug;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
-
-static const char tlan_signature[] = "TLAN";
-static const char tlan_banner[] = "ThunderLAN driver v1.17\n";
-static int tlan_have_pci;
-static int tlan_have_eisa;
-
-static const char * const media[] = {
- "10BaseT-HD", "10BaseT-FD", "100baseTx-HD",
- "100BaseTx-FD", "100BaseT4", NULL
-};
-
-static struct board {
- const char *device_label;
- u32 flags;
- u16 addr_ofs;
-} board_info[] = {
- { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Netelligent 10/100 TX PCI UTP",
- TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq NetFlex-3/P",
- TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
- { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq Netelligent Integrated 10/100 TX UTP",
- TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Netelligent Dual 10/100 TX PCI UTP",
- TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq Netelligent 10/100 TX Embedded UTP",
- TLAN_ADAPTER_NONE, 0x83 },
- { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
- { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xf8 },
- { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xf8 },
- { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Netelligent 10 T/2 PCI UTP/coax", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq NetFlex-3/E",
- TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
- TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
- { "Compaq NetFlex-3/E",
- TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
-};
-
-static DEFINE_PCI_DEVICE_TABLE(tlan_pci_tbl) = {
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
- { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
- { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
- { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
- { 0,}
-};
-MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
-
-static void tlan_eisa_probe(void);
-static void tlan_eisa_cleanup(void);
-static int tlan_init(struct net_device *);
-static int tlan_open(struct net_device *dev);
-static netdev_tx_t tlan_start_tx(struct sk_buff *, struct net_device *);
-static irqreturn_t tlan_handle_interrupt(int, void *);
-static int tlan_close(struct net_device *);
-static struct net_device_stats *tlan_get_stats(struct net_device *);
-static void tlan_set_multicast_list(struct net_device *);
-static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static int tlan_probe1(struct pci_dev *pdev, long ioaddr,
- int irq, int rev, const struct pci_device_id *ent);
-static void tlan_tx_timeout(struct net_device *dev);
-static void tlan_tx_timeout_work(struct work_struct *work);
-static int tlan_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent);
-
-static u32 tlan_handle_tx_eof(struct net_device *, u16);
-static u32 tlan_handle_stat_overflow(struct net_device *, u16);
-static u32 tlan_handle_rx_eof(struct net_device *, u16);
-static u32 tlan_handle_dummy(struct net_device *, u16);
-static u32 tlan_handle_tx_eoc(struct net_device *, u16);
-static u32 tlan_handle_status_check(struct net_device *, u16);
-static u32 tlan_handle_rx_eoc(struct net_device *, u16);
-
-static void tlan_timer(unsigned long);
-
-static void tlan_reset_lists(struct net_device *);
-static void tlan_free_lists(struct net_device *);
-static void tlan_print_dio(u16);
-static void tlan_print_list(struct tlan_list *, char *, int);
-static void tlan_read_and_clear_stats(struct net_device *, int);
-static void tlan_reset_adapter(struct net_device *);
-static void tlan_finish_reset(struct net_device *);
-static void tlan_set_mac(struct net_device *, int areg, char *mac);
-
-static void tlan_phy_print(struct net_device *);
-static void tlan_phy_detect(struct net_device *);
-static void tlan_phy_power_down(struct net_device *);
-static void tlan_phy_power_up(struct net_device *);
-static void tlan_phy_reset(struct net_device *);
-static void tlan_phy_start_link(struct net_device *);
-static void tlan_phy_finish_auto_neg(struct net_device *);
-#ifdef MONITOR
-static void tlan_phy_monitor(struct net_device *);
-#endif
-
-/*
- static int tlan_phy_nop(struct net_device *);
- static int tlan_phy_internal_check(struct net_device *);
- static int tlan_phy_internal_service(struct net_device *);
- static int tlan_phy_dp83840a_check(struct net_device *);
-*/
-
-static bool tlan_mii_read_reg(struct net_device *, u16, u16, u16 *);
-static void tlan_mii_send_data(u16, u32, unsigned);
-static void tlan_mii_sync(u16);
-static void tlan_mii_write_reg(struct net_device *, u16, u16, u16);
-
-static void tlan_ee_send_start(u16);
-static int tlan_ee_send_byte(u16, u8, int);
-static void tlan_ee_receive_byte(u16, u8 *, int);
-static int tlan_ee_read_byte(struct net_device *, u8, u8 *);
-
-
-static inline void
-tlan_store_skb(struct tlan_list *tag, struct sk_buff *skb)
-{
- unsigned long addr = (unsigned long)skb;
- tag->buffer[9].address = addr;
- tag->buffer[8].address = upper_32_bits(addr);
-}
-
-static inline struct sk_buff *
-tlan_get_skb(const struct tlan_list *tag)
-{
- unsigned long addr;
-
- addr = tag->buffer[9].address;
- addr |= (tag->buffer[8].address << 16) << 16;
- return (struct sk_buff *) addr;
-}
-
-static u32
-(*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = {
- NULL,
- tlan_handle_tx_eof,
- tlan_handle_stat_overflow,
- tlan_handle_rx_eof,
- tlan_handle_dummy,
- tlan_handle_tx_eoc,
- tlan_handle_status_check,
- tlan_handle_rx_eoc
-};
-
-static inline void
-tlan_set_timer(struct net_device *dev, u32 ticks, u32 type)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- unsigned long flags = 0;
-
- if (!in_irq())
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->timer.function != NULL &&
- priv->timer_type != TLAN_TIMER_ACTIVITY) {
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
- priv->timer.function = tlan_timer;
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
-
- priv->timer.data = (unsigned long) dev;
- priv->timer_set_at = jiffies;
- priv->timer_type = type;
- mod_timer(&priv->timer, jiffies + ticks);
-
-}
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver primary functions
-
-these functions are more or less common to all linux network drivers.
-
-******************************************************************************
-*****************************************************************************/
-
-
-
-
-
-/***************************************************************
- * tlan_remove_one
- *
- * Returns:
- * Nothing
- * Parms:
- * None
- *
- * Goes through the TLanDevices list and frees the device
- * structs and memory associated with each device (lists
- * and buffers). It also ureserves the IO port regions
- * associated with this device.
- *
- **************************************************************/
-
-
-static void __devexit tlan_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct tlan_priv *priv = netdev_priv(dev);
-
- unregister_netdev(dev);
-
- if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev,
- priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
- }
-
-#ifdef CONFIG_PCI
- pci_release_regions(pdev);
-#endif
-
- free_netdev(dev);
-
- pci_set_drvdata(pdev, NULL);
-}
-
-static void tlan_start(struct net_device *dev)
-{
- tlan_reset_lists(dev);
- /* NOTE: It might not be necessary to read the stats before a
- reset if you don't care what the values are.
- */
- tlan_read_and_clear_stats(dev, TLAN_IGNORE);
- tlan_reset_adapter(dev);
- netif_wake_queue(dev);
-}
-
-static void tlan_stop(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
-
- tlan_read_and_clear_stats(dev, TLAN_RECORD);
- outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
- /* Reset and power down phy */
- tlan_reset_adapter(dev);
- if (priv->timer.function != NULL) {
- del_timer_sync(&priv->timer);
- priv->timer.function = NULL;
- }
-}
-
-#ifdef CONFIG_PM
-
-static int tlan_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
-
- if (netif_running(dev))
- tlan_stop(dev);
-
- netif_device_detach(dev);
- pci_save_state(pdev);
- pci_disable_device(pdev);
- pci_wake_from_d3(pdev, false);
- pci_set_power_state(pdev, PCI_D3hot);
-
- return 0;
-}
-
-static int tlan_resume(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- pci_enable_wake(pdev, 0, 0);
- netif_device_attach(dev);
-
- if (netif_running(dev))
- tlan_start(dev);
-
- return 0;
-}
-
-#else /* CONFIG_PM */
-
-#define tlan_suspend NULL
-#define tlan_resume NULL
-
-#endif /* CONFIG_PM */
-
-
-static struct pci_driver tlan_driver = {
- .name = "tlan",
- .id_table = tlan_pci_tbl,
- .probe = tlan_init_one,
- .remove = __devexit_p(tlan_remove_one),
- .suspend = tlan_suspend,
- .resume = tlan_resume,
-};
-
-static int __init tlan_probe(void)
-{
- int rc = -ENODEV;
-
- pr_info("%s", tlan_banner);
-
- TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
-
- /* Use new style PCI probing. Now the kernel will
- do most of this for us */
- rc = pci_register_driver(&tlan_driver);
-
- if (rc != 0) {
- pr_err("Could not register pci driver\n");
- goto err_out_pci_free;
- }
-
- TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
- tlan_eisa_probe();
-
- pr_info("%d device%s installed, PCI: %d EISA: %d\n",
- tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
- tlan_have_pci, tlan_have_eisa);
-
- if (tlan_devices_installed == 0) {
- rc = -ENODEV;
- goto err_out_pci_unreg;
- }
- return 0;
-
-err_out_pci_unreg:
- pci_unregister_driver(&tlan_driver);
-err_out_pci_free:
- return rc;
-}
-
-
-static int __devinit tlan_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- return tlan_probe1(pdev, -1, -1, 0, ent);
-}
-
-
-/*
-***************************************************************
-* tlan_probe1
-*
-* Returns:
-* 0 on success, error code on error
-* Parms:
-* none
-*
-* The name is lower case to fit in with all the rest of
-* the netcard_probe names. This function looks for
-* another TLan based adapter, setting it up with the
-* allocated device struct if one is found.
-* tlan_probe has been ported to the new net API and
-* now allocates its own device structure. This function
-* is also used by modules.
-*
-**************************************************************/
-
-static int __devinit tlan_probe1(struct pci_dev *pdev,
- long ioaddr, int irq, int rev,
- const struct pci_device_id *ent)
-{
-
- struct net_device *dev;
- struct tlan_priv *priv;
- u16 device_id;
- int reg, rc = -ENODEV;
-
-#ifdef CONFIG_PCI
- if (pdev) {
- rc = pci_enable_device(pdev);
- if (rc)
- return rc;
-
- rc = pci_request_regions(pdev, tlan_signature);
- if (rc) {
- pr_err("Could not reserve IO regions\n");
- goto err_out;
- }
- }
-#endif /* CONFIG_PCI */
-
- dev = alloc_etherdev(sizeof(struct tlan_priv));
- if (dev == NULL) {
- pr_err("Could not allocate memory for device\n");
- rc = -ENOMEM;
- goto err_out_regions;
- }
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- priv = netdev_priv(dev);
-
- priv->pci_dev = pdev;
- priv->dev = dev;
-
- /* Is this a PCI device? */
- if (pdev) {
- u32 pci_io_base = 0;
-
- priv->adapter = &board_info[ent->driver_data];
-
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- pr_err("No suitable PCI mapping available\n");
- goto err_out_free_dev;
- }
-
- for (reg = 0; reg <= 5; reg++) {
- if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
- pci_io_base = pci_resource_start(pdev, reg);
- TLAN_DBG(TLAN_DEBUG_GNRL,
- "IO mapping is available at %x.\n",
- pci_io_base);
- break;
- }
- }
- if (!pci_io_base) {
- pr_err("No IO mappings available\n");
- rc = -EIO;
- goto err_out_free_dev;
- }
-
- dev->base_addr = pci_io_base;
- dev->irq = pdev->irq;
- priv->adapter_rev = pdev->revision;
- pci_set_master(pdev);
- pci_set_drvdata(pdev, dev);
-
- } else { /* EISA card */
- /* This is a hack. We need to know which board structure
- * is suited for this adapter */
- device_id = inw(ioaddr + EISA_ID2);
- priv->is_eisa = 1;
- if (device_id == 0x20F1) {
- priv->adapter = &board_info[13]; /* NetFlex-3/E */
- priv->adapter_rev = 23; /* TLAN 2.3 */
- } else {
- priv->adapter = &board_info[14];
- priv->adapter_rev = 10; /* TLAN 1.0 */
- }
- dev->base_addr = ioaddr;
- dev->irq = irq;
- }
-
- /* Kernel parameters */
- if (dev->mem_start) {
- priv->aui = dev->mem_start & 0x01;
- priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
- : (dev->mem_start & 0x06) >> 1;
- priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
- : (dev->mem_start & 0x18) >> 3;
-
- if (priv->speed == 0x1)
- priv->speed = TLAN_SPEED_10;
- else if (priv->speed == 0x2)
- priv->speed = TLAN_SPEED_100;
-
- debug = priv->debug = dev->mem_end;
- } else {
- priv->aui = aui[boards_found];
- priv->speed = speed[boards_found];
- priv->duplex = duplex[boards_found];
- priv->debug = debug;
- }
-
- /* This will be used when we get an adapter error from
- * within our irq handler */
- INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
-
- spin_lock_init(&priv->lock);
-
- rc = tlan_init(dev);
- if (rc) {
- pr_err("Could not set up device\n");
- goto err_out_free_dev;
- }
-
- rc = register_netdev(dev);
- if (rc) {
- pr_err("Could not register device\n");
- goto err_out_uninit;
- }
-
-
- tlan_devices_installed++;
- boards_found++;
-
- /* pdev is NULL if this is an EISA device */
- if (pdev)
- tlan_have_pci++;
- else {
- priv->next_device = tlan_eisa_devices;
- tlan_eisa_devices = dev;
- tlan_have_eisa++;
- }
-
- netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
- (int)dev->irq,
- (int)dev->base_addr,
- priv->adapter->device_label,
- priv->adapter_rev);
- return 0;
-
-err_out_uninit:
- pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
-err_out_free_dev:
- free_netdev(dev);
-err_out_regions:
-#ifdef CONFIG_PCI
- if (pdev)
- pci_release_regions(pdev);
-#endif
-err_out:
- if (pdev)
- pci_disable_device(pdev);
- return rc;
-}
-
-
-static void tlan_eisa_cleanup(void)
-{
- struct net_device *dev;
- struct tlan_priv *priv;
-
- while (tlan_have_eisa) {
- dev = tlan_eisa_devices;
- priv = netdev_priv(dev);
- if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev, priv->dma_size,
- priv->dma_storage,
- priv->dma_storage_dma);
- }
- release_region(dev->base_addr, 0x10);
- unregister_netdev(dev);
- tlan_eisa_devices = priv->next_device;
- free_netdev(dev);
- tlan_have_eisa--;
- }
-}
-
-
-static void __exit tlan_exit(void)
-{
- pci_unregister_driver(&tlan_driver);
-
- if (tlan_have_eisa)
- tlan_eisa_cleanup();
-
-}
-
-
-/* Module loading/unloading */
-module_init(tlan_probe);
-module_exit(tlan_exit);
-
-
-
-/**************************************************************
- * tlan_eisa_probe
- *
- * Returns: 0 on success, 1 otherwise
- *
- * Parms: None
- *
- *
- * This functions probes for EISA devices and calls
- * TLan_probe1 when one is found.
- *
- *************************************************************/
-
-static void __init tlan_eisa_probe(void)
-{
- long ioaddr;
- int rc = -ENODEV;
- int irq;
- u16 device_id;
-
- if (!EISA_bus) {
- TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
- return;
- }
-
- /* Loop through all slots of the EISA bus */
- for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
-
- TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
- (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
- TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
- (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
-
-
- TLAN_DBG(TLAN_DEBUG_PROBE,
- "Probing for EISA adapter at IO: 0x%4x : ",
- (int) ioaddr);
- if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
- goto out;
-
- if (inw(ioaddr + EISA_ID) != 0x110E) {
- release_region(ioaddr, 0x10);
- goto out;
- }
-
- device_id = inw(ioaddr + EISA_ID2);
- if (device_id != 0x20F1 && device_id != 0x40F1) {
- release_region(ioaddr, 0x10);
- goto out;
- }
-
- /* check if adapter is enabled */
- if (inb(ioaddr + EISA_CR) != 0x1) {
- release_region(ioaddr, 0x10);
- goto out2;
- }
-
- if (debug == 0x10)
- pr_info("Found one\n");
-
-
- /* Get irq from board */
- switch (inb(ioaddr + 0xcc0)) {
- case(0x10):
- irq = 5;
- break;
- case(0x20):
- irq = 9;
- break;
- case(0x40):
- irq = 10;
- break;
- case(0x80):
- irq = 11;
- break;
- default:
- goto out;
- }
-
-
- /* Setup the newly found eisa adapter */
- rc = tlan_probe1(NULL, ioaddr, irq,
- 12, NULL);
- continue;
-
-out:
- if (debug == 0x10)
- pr_info("None found\n");
- continue;
-
-out2:
- if (debug == 0x10)
- pr_info("Card found but it is not enabled, skipping\n");
- continue;
-
- }
-
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void tlan_poll(struct net_device *dev)
-{
- disable_irq(dev->irq);
- tlan_handle_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static const struct net_device_ops tlan_netdev_ops = {
- .ndo_open = tlan_open,
- .ndo_stop = tlan_close,
- .ndo_start_xmit = tlan_start_tx,
- .ndo_tx_timeout = tlan_tx_timeout,
- .ndo_get_stats = tlan_get_stats,
- .ndo_set_multicast_list = tlan_set_multicast_list,
- .ndo_do_ioctl = tlan_ioctl,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = tlan_poll,
-#endif
-};
-
-
-
-/***************************************************************
- * tlan_init
- *
- * Returns:
- * 0 on success, error code otherwise.
- * Parms:
- * dev The structure of the device to be
- * init'ed.
- *
- * This function completes the initialization of the
- * device structure and driver. It reserves the IO
- * addresses, allocates memory for the lists and bounce
- * buffers, retrieves the MAC address from the eeprom
- * and assignes the device's methods.
- *
- **************************************************************/
-
-static int tlan_init(struct net_device *dev)
-{
- int dma_size;
- int err;
- int i;
- struct tlan_priv *priv;
-
- priv = netdev_priv(dev);
-
- dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
- * (sizeof(struct tlan_list));
- priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
- dma_size,
- &priv->dma_storage_dma);
- priv->dma_size = dma_size;
-
- if (priv->dma_storage == NULL) {
- pr_err("Could not allocate lists and buffers for %s\n",
- dev->name);
- return -ENOMEM;
- }
- memset(priv->dma_storage, 0, dma_size);
- priv->rx_list = (struct tlan_list *)
- ALIGN((unsigned long)priv->dma_storage, 8);
- priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
- priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
- priv->tx_list_dma =
- priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
-
- err = 0;
- for (i = 0; i < 6 ; i++)
- err |= tlan_ee_read_byte(dev,
- (u8) priv->adapter->addr_ofs + i,
- (u8 *) &dev->dev_addr[i]);
- if (err) {
- pr_err("%s: Error reading MAC from eeprom: %d\n",
- dev->name, err);
- }
- dev->addr_len = 6;
-
- netif_carrier_off(dev);
-
- /* Device methods */
- dev->netdev_ops = &tlan_netdev_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- return 0;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_open
- *
- * Returns:
- * 0 on success, error code otherwise.
- * Parms:
- * dev Structure of device to be opened.
- *
- * This routine puts the driver and TLAN adapter in a
- * state where it is ready to send and receive packets.
- * It allocates the IRQ, resets and brings the adapter
- * out of reset, and allows interrupts. It also delays
- * the startup for autonegotiation or sends a Rx GO
- * command to the adapter, as appropriate.
- *
- **************************************************************/
-
-static int tlan_open(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- int err;
-
- priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
- err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
- dev->name, dev);
-
- if (err) {
- netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
- dev->irq);
- return err;
- }
-
- init_timer(&priv->timer);
-
- tlan_start(dev);
-
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
- dev->name, priv->tlan_rev);
-
- return 0;
-
-}
-
-
-
-/**************************************************************
- * tlan_ioctl
- *
- * Returns:
- * 0 on success, error code otherwise
- * Params:
- * dev structure of device to receive ioctl.
- *
- * rq ifreq structure to hold userspace data.
- *
- * cmd ioctl command.
- *
- *
- *************************************************************/
-
-static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- struct mii_ioctl_data *data = if_mii(rq);
- u32 phy = priv->phy[priv->phy_num];
-
- if (!priv->phy_online)
- return -EAGAIN;
-
- switch (cmd) {
- case SIOCGMIIPHY: /* get address of MII PHY in use. */
- data->phy_id = phy;
-
-
- case SIOCGMIIREG: /* read MII PHY register. */
- tlan_mii_read_reg(dev, data->phy_id & 0x1f,
- data->reg_num & 0x1f, &data->val_out);
- return 0;
-
-
- case SIOCSMIIREG: /* write MII PHY register. */
- tlan_mii_write_reg(dev, data->phy_id & 0x1f,
- data->reg_num & 0x1f, data->val_in);
- return 0;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-
-/***************************************************************
- * tlan_tx_timeout
- *
- * Returns: nothing
- *
- * Params:
- * dev structure of device which timed out
- * during transmit.
- *
- **************************************************************/
-
-static void tlan_tx_timeout(struct net_device *dev)
-{
-
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
-
- /* Ok so we timed out, lets see what we can do about it...*/
- tlan_free_lists(dev);
- tlan_reset_lists(dev);
- tlan_read_and_clear_stats(dev, TLAN_IGNORE);
- tlan_reset_adapter(dev);
- dev->trans_start = jiffies; /* prevent tx timeout */
- netif_wake_queue(dev);
-
-}
-
-
-/***************************************************************
- * tlan_tx_timeout_work
- *
- * Returns: nothing
- *
- * Params:
- * work work item of device which timed out
- *
- **************************************************************/
-
-static void tlan_tx_timeout_work(struct work_struct *work)
-{
- struct tlan_priv *priv =
- container_of(work, struct tlan_priv, tlan_tqueue);
-
- tlan_tx_timeout(priv->dev);
-}
-
-
-
-/***************************************************************
- * tlan_start_tx
- *
- * Returns:
- * 0 on success, non-zero on failure.
- * Parms:
- * skb A pointer to the sk_buff containing the
- * frame to be sent.
- * dev The device to send the data on.
- *
- * This function adds a frame to the Tx list to be sent
- * ASAP. First it verifies that the adapter is ready and
- * there is room in the queue. Then it sets up the next
- * available list, copies the frame to the corresponding
- * buffer. If the adapter Tx channel is idle, it gives
- * the adapter a Tx Go command on the list, otherwise it
- * sets the forward address of the previous list to point
- * to this one. Then it frees the sk_buff.
- *
- **************************************************************/
-
-static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- dma_addr_t tail_list_phys;
- struct tlan_list *tail_list;
- unsigned long flags;
- unsigned int txlen;
-
- if (!priv->phy_online) {
- TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
- dev->name);
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
-
- if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
- return NETDEV_TX_OK;
- txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE);
-
- tail_list = priv->tx_list + priv->tx_tail;
- tail_list_phys =
- priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail;
-
- if (tail_list->c_stat != TLAN_CSTAT_UNUSED) {
- TLAN_DBG(TLAN_DEBUG_TX,
- "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
- dev->name, priv->tx_head, priv->tx_tail);
- netif_stop_queue(dev);
- priv->tx_busy_count++;
- return NETDEV_TX_BUSY;
- }
-
- tail_list->forward = 0;
-
- tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
- skb->data, txlen,
- PCI_DMA_TODEVICE);
- tlan_store_skb(tail_list, skb);
-
- tail_list->frame_size = (u16) txlen;
- tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen;
- tail_list->buffer[1].count = 0;
- tail_list->buffer[1].address = 0;
-
- spin_lock_irqsave(&priv->lock, flags);
- tail_list->c_stat = TLAN_CSTAT_READY;
- if (!priv->tx_in_progress) {
- priv->tx_in_progress = 1;
- TLAN_DBG(TLAN_DEBUG_TX,
- "TRANSMIT: Starting TX on buffer %d\n",
- priv->tx_tail);
- outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM);
- outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD);
- } else {
- TLAN_DBG(TLAN_DEBUG_TX,
- "TRANSMIT: Adding buffer %d to TX channel\n",
- priv->tx_tail);
- if (priv->tx_tail == 0) {
- (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward
- = tail_list_phys;
- } else {
- (priv->tx_list + (priv->tx_tail - 1))->forward
- = tail_list_phys;
- }
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS);
-
- return NETDEV_TX_OK;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_handle_interrupt
- *
- * Returns:
- * Nothing
- * Parms:
- * irq The line on which the interrupt
- * occurred.
- * dev_id A pointer to the device assigned to
- * this irq line.
- *
- * This function handles an interrupt generated by its
- * assigned TLAN adapter. The function deactivates
- * interrupts on its adapter, records the type of
- * interrupt, executes the appropriate subhandler, and
- * acknowdges the interrupt to the adapter (thus
- * re-enabling adapter interrupts.
- *
- **************************************************************/
-
-static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct tlan_priv *priv = netdev_priv(dev);
- u16 host_int;
- u16 type;
-
- spin_lock(&priv->lock);
-
- host_int = inw(dev->base_addr + TLAN_HOST_INT);
- type = (host_int & TLAN_HI_IT_MASK) >> 2;
- if (type) {
- u32 ack;
- u32 host_cmd;
-
- outw(host_int, dev->base_addr + TLAN_HOST_INT);
- ack = tlan_int_vector[type](dev, host_int);
-
- if (ack) {
- host_cmd = TLAN_HC_ACK | ack | (type << 18);
- outl(host_cmd, dev->base_addr + TLAN_HOST_CMD);
- }
- }
-
- spin_unlock(&priv->lock);
-
- return IRQ_RETVAL(type);
-}
-
-
-
-
-/***************************************************************
- * tlan_close
- *
- * Returns:
- * An error code.
- * Parms:
- * dev The device structure of the device to
- * close.
- *
- * This function shuts down the adapter. It records any
- * stats, puts the adapter into reset state, deactivates
- * its time as needed, and frees the irq it is using.
- *
- **************************************************************/
-
-static int tlan_close(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
-
- priv->neg_be_verbose = 0;
- tlan_stop(dev);
-
- free_irq(dev->irq, dev);
- tlan_free_lists(dev);
- TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name);
-
- return 0;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_get_stats
- *
- * Returns:
- * A pointer to the device's statistics structure.
- * Parms:
- * dev The device structure to return the
- * stats for.
- *
- * This function updates the devices statistics by reading
- * the TLAN chip's onboard registers. Then it returns the
- * address of the statistics structure.
- *
- **************************************************************/
-
-static struct net_device_stats *tlan_get_stats(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- int i;
-
- /* Should only read stats if open ? */
- tlan_read_and_clear_stats(dev, TLAN_RECORD);
-
- TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
- priv->rx_eoc_count);
- TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
- priv->tx_busy_count);
- if (debug & TLAN_DEBUG_GNRL) {
- tlan_print_dio(dev->base_addr);
- tlan_phy_print(dev);
- }
- if (debug & TLAN_DEBUG_LIST) {
- for (i = 0; i < TLAN_NUM_RX_LISTS; i++)
- tlan_print_list(priv->rx_list + i, "RX", i);
- for (i = 0; i < TLAN_NUM_TX_LISTS; i++)
- tlan_print_list(priv->tx_list + i, "TX", i);
- }
-
- return &dev->stats;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_set_multicast_list
- *
- * Returns:
- * Nothing
- * Parms:
- * dev The device structure to set the
- * multicast list for.
- *
- * This function sets the TLAN adaptor to various receive
- * modes. If the IFF_PROMISC flag is set, promiscuous
- * mode is acitviated. Otherwise, promiscuous mode is
- * turned off. If the IFF_ALLMULTI flag is set, then
- * the hash table is set to receive all group addresses.
- * Otherwise, the first three multicast addresses are
- * stored in AREG_1-3, and the rest are selected via the
- * hash table, as necessary.
- *
- **************************************************************/
-
-static void tlan_set_multicast_list(struct net_device *dev)
-{
- struct netdev_hw_addr *ha;
- u32 hash1 = 0;
- u32 hash2 = 0;
- int i;
- u32 offset;
- u8 tmp;
-
- if (dev->flags & IFF_PROMISC) {
- tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
- tlan_dio_write8(dev->base_addr,
- TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF);
- } else {
- tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
- tlan_dio_write8(dev->base_addr,
- TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF);
- if (dev->flags & IFF_ALLMULTI) {
- for (i = 0; i < 3; i++)
- tlan_set_mac(dev, i + 1, NULL);
- tlan_dio_write32(dev->base_addr, TLAN_HASH_1,
- 0xffffffff);
- tlan_dio_write32(dev->base_addr, TLAN_HASH_2,
- 0xffffffff);
- } else {
- i = 0;
- netdev_for_each_mc_addr(ha, dev) {
- if (i < 3) {
- tlan_set_mac(dev, i + 1,
- (char *) &ha->addr);
- } else {
- offset =
- tlan_hash_func((u8 *)&ha->addr);
- if (offset < 32)
- hash1 |= (1 << offset);
- else
- hash2 |= (1 << (offset - 32));
- }
- i++;
- }
- for ( ; i < 3; i++)
- tlan_set_mac(dev, i + 1, NULL);
- tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1);
- tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2);
- }
- }
-
-}
-
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver interrupt vectors and table
-
-please see chap. 4, "Interrupt Handling" of the "ThunderLAN
-Programmer's Guide" for more informations on handling interrupts
-generated by TLAN based adapters.
-
-******************************************************************************
-*****************************************************************************/
-
-
-
-
-/***************************************************************
- * tlan_handle_tx_eof
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles Tx EOF interrupts which are raised
- * by the adapter when it has completed sending the
- * contents of a buffer. If detemines which list/buffer
- * was completed and resets it. If the buffer was the last
- * in the channel (EOC), then the function checks to see if
- * another buffer is ready to send, and if so, sends a Tx
- * Go command. Finally, the driver activates/continues the
- * activity LED.
- *
- **************************************************************/
-
-static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- int eoc = 0;
- struct tlan_list *head_list;
- dma_addr_t head_list_phys;
- u32 ack = 0;
- u16 tmp_c_stat;
-
- TLAN_DBG(TLAN_DEBUG_TX,
- "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
- priv->tx_head, priv->tx_tail);
- head_list = priv->tx_list + priv->tx_head;
-
- while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
- && (ack < 255)) {
- struct sk_buff *skb = tlan_get_skb(head_list);
-
- ack++;
- pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
- dev_kfree_skb_any(skb);
- head_list->buffer[8].address = 0;
- head_list->buffer[9].address = 0;
-
- if (tmp_c_stat & TLAN_CSTAT_EOC)
- eoc = 1;
-
- dev->stats.tx_bytes += head_list->frame_size;
-
- head_list->c_stat = TLAN_CSTAT_UNUSED;
- netif_start_queue(dev);
- CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS);
- head_list = priv->tx_list + priv->tx_head;
- }
-
- if (!ack)
- netdev_info(dev,
- "Received interrupt for uncompleted TX frame\n");
-
- if (eoc) {
- TLAN_DBG(TLAN_DEBUG_TX,
- "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n",
- priv->tx_head, priv->tx_tail);
- head_list = priv->tx_list + priv->tx_head;
- head_list_phys = priv->tx_list_dma
- + sizeof(struct tlan_list)*priv->tx_head;
- if ((head_list->c_stat & TLAN_CSTAT_READY)
- == TLAN_CSTAT_READY) {
- outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
- ack |= TLAN_HC_GO;
- } else {
- priv->tx_in_progress = 0;
- }
- }
-
- if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
- tlan_dio_write8(dev->base_addr,
- TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
- if (priv->timer.function == NULL) {
- priv->timer.function = tlan_timer;
- priv->timer.data = (unsigned long) dev;
- priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
- priv->timer_set_at = jiffies;
- priv->timer_type = TLAN_TIMER_ACTIVITY;
- add_timer(&priv->timer);
- } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
- priv->timer_set_at = jiffies;
- }
- }
-
- return ack;
-
-}
-
-
-
-
-/***************************************************************
- * TLan_HandleStatOverflow
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles the Statistics Overflow interrupt
- * which means that one or more of the TLAN statistics
- * registers has reached 1/2 capacity and needs to be read.
- *
- **************************************************************/
-
-static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int)
-{
- tlan_read_and_clear_stats(dev, TLAN_RECORD);
-
- return 1;
-
-}
-
-
-
-
-/***************************************************************
- * TLan_HandleRxEOF
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles the Rx EOF interrupt which
- * indicates a frame has been received by the adapter from
- * the net and the frame has been transferred to memory.
- * The function determines the bounce buffer the frame has
- * been loaded into, creates a new sk_buff big enough to
- * hold the frame, and sends it to protocol stack. It
- * then resets the used buffer and appends it to the end
- * of the list. If the frame was the last in the Rx
- * channel (EOC), the function restarts the receive channel
- * by sending an Rx Go command to the adapter. Then it
- * activates/continues the activity LED.
- *
- **************************************************************/
-
-static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u32 ack = 0;
- int eoc = 0;
- struct tlan_list *head_list;
- struct sk_buff *skb;
- struct tlan_list *tail_list;
- u16 tmp_c_stat;
- dma_addr_t head_list_phys;
-
- TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n",
- priv->rx_head, priv->rx_tail);
- head_list = priv->rx_list + priv->rx_head;
- head_list_phys =
- priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head;
-
- while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
- && (ack < 255)) {
- dma_addr_t frame_dma = head_list->buffer[0].address;
- u32 frame_size = head_list->frame_size;
- struct sk_buff *new_skb;
-
- ack++;
- if (tmp_c_stat & TLAN_CSTAT_EOC)
- eoc = 1;
-
- new_skb = netdev_alloc_skb_ip_align(dev,
- TLAN_MAX_FRAME_SIZE + 5);
- if (!new_skb)
- goto drop_and_reuse;
-
- skb = tlan_get_skb(head_list);
- pci_unmap_single(priv->pci_dev, frame_dma,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
- skb_put(skb, frame_size);
-
- dev->stats.rx_bytes += frame_size;
-
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
-
- head_list->buffer[0].address =
- pci_map_single(priv->pci_dev, new_skb->data,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
-
- tlan_store_skb(head_list, new_skb);
-drop_and_reuse:
- head_list->forward = 0;
- head_list->c_stat = 0;
- tail_list = priv->rx_list + priv->rx_tail;
- tail_list->forward = head_list_phys;
-
- CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS);
- CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS);
- head_list = priv->rx_list + priv->rx_head;
- head_list_phys = priv->rx_list_dma
- + sizeof(struct tlan_list)*priv->rx_head;
- }
-
- if (!ack)
- netdev_info(dev,
- "Received interrupt for uncompleted RX frame\n");
-
-
- if (eoc) {
- TLAN_DBG(TLAN_DEBUG_RX,
- "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n",
- priv->rx_head, priv->rx_tail);
- head_list = priv->rx_list + priv->rx_head;
- head_list_phys = priv->rx_list_dma
- + sizeof(struct tlan_list)*priv->rx_head;
- outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
- ack |= TLAN_HC_GO | TLAN_HC_RT;
- priv->rx_eoc_count++;
- }
-
- if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
- tlan_dio_write8(dev->base_addr,
- TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
- if (priv->timer.function == NULL) {
- priv->timer.function = tlan_timer;
- priv->timer.data = (unsigned long) dev;
- priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
- priv->timer_set_at = jiffies;
- priv->timer_type = TLAN_TIMER_ACTIVITY;
- add_timer(&priv->timer);
- } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
- priv->timer_set_at = jiffies;
- }
- }
-
- return ack;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_handle_dummy
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles the Dummy interrupt, which is
- * raised whenever a test interrupt is generated by setting
- * the Req_Int bit of HOST_CMD to 1.
- *
- **************************************************************/
-
-static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int)
-{
- netdev_info(dev, "Test interrupt\n");
- return 1;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_handle_tx_eoc
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This driver is structured to determine EOC occurrences by
- * reading the CSTAT member of the list structure. Tx EOC
- * interrupts are disabled via the DIO INTDIS register.
- * However, TLAN chips before revision 3.0 didn't have this
- * functionality, so process EOC events if this is the
- * case.
- *
- **************************************************************/
-
-static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- struct tlan_list *head_list;
- dma_addr_t head_list_phys;
- u32 ack = 1;
-
- host_int = 0;
- if (priv->tlan_rev < 0x30) {
- TLAN_DBG(TLAN_DEBUG_TX,
- "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
- priv->tx_head, priv->tx_tail);
- head_list = priv->tx_list + priv->tx_head;
- head_list_phys = priv->tx_list_dma
- + sizeof(struct tlan_list)*priv->tx_head;
- if ((head_list->c_stat & TLAN_CSTAT_READY)
- == TLAN_CSTAT_READY) {
- netif_stop_queue(dev);
- outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
- ack |= TLAN_HC_GO;
- } else {
- priv->tx_in_progress = 0;
- }
- }
-
- return ack;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_handle_status_check
- *
- * Returns:
- * 0 if Adapter check, 1 if Network Status check.
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles Adapter Check/Network Status
- * interrupts generated by the adapter. It checks the
- * vector in the HOST_INT register to determine if it is
- * an Adapter Check interrupt. If so, it resets the
- * adapter. Otherwise it clears the status registers
- * and services the PHY.
- *
- **************************************************************/
-
-static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u32 ack;
- u32 error;
- u8 net_sts;
- u32 phy;
- u16 tlphy_ctl;
- u16 tlphy_sts;
-
- ack = 1;
- if (host_int & TLAN_HI_IV_MASK) {
- netif_stop_queue(dev);
- error = inl(dev->base_addr + TLAN_CH_PARM);
- netdev_info(dev, "Adaptor Error = 0x%x\n", error);
- tlan_read_and_clear_stats(dev, TLAN_RECORD);
- outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
-
- schedule_work(&priv->tlan_tqueue);
-
- netif_wake_queue(dev);
- ack = 0;
- } else {
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name);
- phy = priv->phy[priv->phy_num];
-
- net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS);
- if (net_sts) {
- tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts);
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
- dev->name, (unsigned) net_sts);
- }
- if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) {
- tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts);
- tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
- if (!(tlphy_sts & TLAN_TS_POLOK) &&
- !(tlphy_ctl & TLAN_TC_SWAPOL)) {
- tlphy_ctl |= TLAN_TC_SWAPOL;
- tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
- tlphy_ctl);
- } else if ((tlphy_sts & TLAN_TS_POLOK) &&
- (tlphy_ctl & TLAN_TC_SWAPOL)) {
- tlphy_ctl &= ~TLAN_TC_SWAPOL;
- tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
- tlphy_ctl);
- }
-
- if (debug)
- tlan_phy_print(dev);
- }
- }
-
- return ack;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_handle_rx_eoc
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This driver is structured to determine EOC occurrences by
- * reading the CSTAT member of the list structure. Rx EOC
- * interrupts are disabled via the DIO INTDIS register.
- * However, TLAN chips before revision 3.0 didn't have this
- * CSTAT member or a INTDIS register, so if this chip is
- * pre-3.0, process EOC interrupts normally.
- *
- **************************************************************/
-
-static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- dma_addr_t head_list_phys;
- u32 ack = 1;
-
- if (priv->tlan_rev < 0x30) {
- TLAN_DBG(TLAN_DEBUG_RX,
- "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n",
- priv->rx_head, priv->rx_tail);
- head_list_phys = priv->rx_list_dma
- + sizeof(struct tlan_list)*priv->rx_head;
- outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
- ack |= TLAN_HC_GO | TLAN_HC_RT;
- priv->rx_eoc_count++;
- }
-
- return ack;
-
-}
-
-
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver timer function
-
-******************************************************************************
-*****************************************************************************/
-
-
-/***************************************************************
- * tlan_timer
- *
- * Returns:
- * Nothing
- * Parms:
- * data A value given to add timer when
- * add_timer was called.
- *
- * This function handles timed functionality for the
- * TLAN driver. The two current timer uses are for
- * delaying for autonegotionation and driving the ACT LED.
- * - Autonegotiation requires being allowed about
- * 2 1/2 seconds before attempting to transmit a
- * packet. It would be a very bad thing to hang
- * the kernel this long, so the driver doesn't
- * allow transmission 'til after this time, for
- * certain PHYs. It would be much nicer if all
- * PHYs were interrupt-capable like the internal
- * PHY.
- * - The ACT LED, which shows adapter activity, is
- * driven by the driver, and so must be left on
- * for a short period to power up the LED so it
- * can be seen. This delay can be changed by
- * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
- * if desired. 100 ms produces a slightly
- * sluggish response.
- *
- **************************************************************/
-
-static void tlan_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct tlan_priv *priv = netdev_priv(dev);
- u32 elapsed;
- unsigned long flags = 0;
-
- priv->timer.function = NULL;
-
- switch (priv->timer_type) {
-#ifdef MONITOR
- case TLAN_TIMER_LINK_BEAT:
- tlan_phy_monitor(dev);
- break;
-#endif
- case TLAN_TIMER_PHY_PDOWN:
- tlan_phy_power_down(dev);
- break;
- case TLAN_TIMER_PHY_PUP:
- tlan_phy_power_up(dev);
- break;
- case TLAN_TIMER_PHY_RESET:
- tlan_phy_reset(dev);
- break;
- case TLAN_TIMER_PHY_START_LINK:
- tlan_phy_start_link(dev);
- break;
- case TLAN_TIMER_PHY_FINISH_AN:
- tlan_phy_finish_auto_neg(dev);
- break;
- case TLAN_TIMER_FINISH_RESET:
- tlan_finish_reset(dev);
- break;
- case TLAN_TIMER_ACTIVITY:
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->timer.function == NULL) {
- elapsed = jiffies - priv->timer_set_at;
- if (elapsed >= TLAN_TIMER_ACT_DELAY) {
- tlan_dio_write8(dev->base_addr,
- TLAN_LED_REG, TLAN_LED_LINK);
- } else {
- priv->timer.function = tlan_timer;
- priv->timer.expires = priv->timer_set_at
- + TLAN_TIMER_ACT_DELAY;
- spin_unlock_irqrestore(&priv->lock, flags);
- add_timer(&priv->timer);
- break;
- }
- }
- spin_unlock_irqrestore(&priv->lock, flags);
- break;
- default:
- break;
- }
-
-}
-
-
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver adapter related routines
-
-******************************************************************************
-*****************************************************************************/
-
-
-/***************************************************************
- * tlan_reset_lists
- *
- * Returns:
- * Nothing
- * Parms:
- * dev The device structure with the list
- * stuctures to be reset.
- *
- * This routine sets the variables associated with managing
- * the TLAN lists to their initial values.
- *
- **************************************************************/
-
-static void tlan_reset_lists(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- int i;
- struct tlan_list *list;
- dma_addr_t list_phys;
- struct sk_buff *skb;
-
- priv->tx_head = 0;
- priv->tx_tail = 0;
- for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
- list = priv->tx_list + i;
- list->c_stat = TLAN_CSTAT_UNUSED;
- list->buffer[0].address = 0;
- list->buffer[2].count = 0;
- list->buffer[2].address = 0;
- list->buffer[8].address = 0;
- list->buffer[9].address = 0;
- }
-
- priv->rx_head = 0;
- priv->rx_tail = TLAN_NUM_RX_LISTS - 1;
- for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
- list = priv->rx_list + i;
- list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i;
- list->c_stat = TLAN_CSTAT_READY;
- list->frame_size = TLAN_MAX_FRAME_SIZE;
- list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
- skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5);
- if (!skb) {
- netdev_err(dev, "Out of memory for received data\n");
- break;
- }
-
- list->buffer[0].address = pci_map_single(priv->pci_dev,
- skb->data,
- TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
- tlan_store_skb(list, skb);
- list->buffer[1].count = 0;
- list->buffer[1].address = 0;
- list->forward = list_phys + sizeof(struct tlan_list);
- }
-
- /* in case ran out of memory early, clear bits */
- while (i < TLAN_NUM_RX_LISTS) {
- tlan_store_skb(priv->rx_list + i, NULL);
- ++i;
- }
- list->forward = 0;
-
-}
-
-
-static void tlan_free_lists(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- int i;
- struct tlan_list *list;
- struct sk_buff *skb;
-
- for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
- list = priv->tx_list + i;
- skb = tlan_get_skb(list);
- if (skb) {
- pci_unmap_single(
- priv->pci_dev,
- list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
- dev_kfree_skb_any(skb);
- list->buffer[8].address = 0;
- list->buffer[9].address = 0;
- }
- }
-
- for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
- list = priv->rx_list + i;
- skb = tlan_get_skb(list);
- if (skb) {
- pci_unmap_single(priv->pci_dev,
- list->buffer[0].address,
- TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb_any(skb);
- list->buffer[8].address = 0;
- list->buffer[9].address = 0;
- }
- }
-}
-
-
-
-
-/***************************************************************
- * tlan_print_dio
- *
- * Returns:
- * Nothing
- * Parms:
- * io_base Base IO port of the device of
- * which to print DIO registers.
- *
- * This function prints out all the internal (DIO)
- * registers of a TLAN chip.
- *
- **************************************************************/
-
-static void tlan_print_dio(u16 io_base)
-{
- u32 data0, data1;
- int i;
-
- pr_info("Contents of internal registers for io base 0x%04hx\n",
- io_base);
- pr_info("Off. +0 +4\n");
- for (i = 0; i < 0x4C; i += 8) {
- data0 = tlan_dio_read32(io_base, i);
- data1 = tlan_dio_read32(io_base, i + 0x4);
- pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1);
- }
-
-}
-
-
-
-
-/***************************************************************
- * TLan_PrintList
- *
- * Returns:
- * Nothing
- * Parms:
- * list A pointer to the struct tlan_list structure to
- * be printed.
- * type A string to designate type of list,
- * "Rx" or "Tx".
- * num The index of the list.
- *
- * This function prints out the contents of the list
- * pointed to by the list parameter.
- *
- **************************************************************/
-
-static void tlan_print_list(struct tlan_list *list, char *type, int num)
-{
- int i;
-
- pr_info("%s List %d at %p\n", type, num, list);
- pr_info(" Forward = 0x%08x\n", list->forward);
- pr_info(" CSTAT = 0x%04hx\n", list->c_stat);
- pr_info(" Frame Size = 0x%04hx\n", list->frame_size);
- /* for (i = 0; i < 10; i++) { */
- for (i = 0; i < 2; i++) {
- pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
- i, list->buffer[i].count, list->buffer[i].address);
- }
-
-}
-
-
-
-
-/***************************************************************
- * tlan_read_and_clear_stats
- *
- * Returns:
- * Nothing
- * Parms:
- * dev Pointer to device structure of adapter
- * to which to read stats.
- * record Flag indicating whether to add
- *
- * This functions reads all the internal status registers
- * of the TLAN chip, which clears them as a side effect.
- * It then either adds the values to the device's status
- * struct, or discards them, depending on whether record
- * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
- *
- **************************************************************/
-
-static void tlan_read_and_clear_stats(struct net_device *dev, int record)
-{
- u32 tx_good, tx_under;
- u32 rx_good, rx_over;
- u32 def_tx, crc, code;
- u32 multi_col, single_col;
- u32 excess_col, late_col, loss;
-
- outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR);
- tx_good = inb(dev->base_addr + TLAN_DIO_DATA);
- tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
- tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
- tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3);
-
- outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR);
- rx_good = inb(dev->base_addr + TLAN_DIO_DATA);
- rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
- rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
- rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3);
-
- outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR);
- def_tx = inb(dev->base_addr + TLAN_DIO_DATA);
- def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
- crc = inb(dev->base_addr + TLAN_DIO_DATA + 2);
- code = inb(dev->base_addr + TLAN_DIO_DATA + 3);
-
- outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
- multi_col = inb(dev->base_addr + TLAN_DIO_DATA);
- multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
- single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2);
- single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8;
-
- outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
- excess_col = inb(dev->base_addr + TLAN_DIO_DATA);
- late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1);
- loss = inb(dev->base_addr + TLAN_DIO_DATA + 2);
-
- if (record) {
- dev->stats.rx_packets += rx_good;
- dev->stats.rx_errors += rx_over + crc + code;
- dev->stats.tx_packets += tx_good;
- dev->stats.tx_errors += tx_under + loss;
- dev->stats.collisions += multi_col
- + single_col + excess_col + late_col;
-
- dev->stats.rx_over_errors += rx_over;
- dev->stats.rx_crc_errors += crc;
- dev->stats.rx_frame_errors += code;
-
- dev->stats.tx_aborted_errors += tx_under;
- dev->stats.tx_carrier_errors += loss;
- }
-
-}
-
-
-
-
-/***************************************************************
- * TLan_Reset
- *
- * Returns:
- * 0
- * Parms:
- * dev Pointer to device structure of adapter
- * to be reset.
- *
- * This function resets the adapter and it's physical
- * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
- * Programmer's Guide" for details. The routine tries to
- * implement what is detailed there, though adjustments
- * have been made.
- *
- **************************************************************/
-
-static void
-tlan_reset_adapter(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- int i;
- u32 addr;
- u32 data;
- u8 data8;
-
- priv->tlan_full_duplex = false;
- priv->phy_online = 0;
- netif_carrier_off(dev);
-
-/* 1. Assert reset bit. */
-
- data = inl(dev->base_addr + TLAN_HOST_CMD);
- data |= TLAN_HC_AD_RST;
- outl(data, dev->base_addr + TLAN_HOST_CMD);
-
- udelay(1000);
-
-/* 2. Turn off interrupts. (Probably isn't necessary) */
-
- data = inl(dev->base_addr + TLAN_HOST_CMD);
- data |= TLAN_HC_INT_OFF;
- outl(data, dev->base_addr + TLAN_HOST_CMD);
-
-/* 3. Clear AREGs and HASHs. */
-
- for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4)
- tlan_dio_write32(dev->base_addr, (u16) i, 0);
-
-/* 4. Setup NetConfig register. */
-
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
- tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
-
-/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
-
- outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD);
- outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD);
-
-/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
-
- outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
- addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
- tlan_set_bit(TLAN_NET_SIO_NMRST, addr);
-
-/* 7. Setup the remaining registers. */
-
- if (priv->tlan_rev >= 0x30) {
- data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
- tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8);
- }
- tlan_phy_detect(dev);
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
-
- if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) {
- data |= TLAN_NET_CFG_BIT;
- if (priv->aui == 1) {
- tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a);
- } else if (priv->duplex == TLAN_DUPLEX_FULL) {
- tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00);
- priv->tlan_full_duplex = true;
- } else {
- tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08);
- }
- }
-
- if (priv->phy_num == 0)
- data |= TLAN_NET_CFG_PHY_EN;
- tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
-
- if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY)
- tlan_finish_reset(dev);
- else
- tlan_phy_power_down(dev);
-
-}
-
-
-
-
-static void
-tlan_finish_reset(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u8 data;
- u32 phy;
- u8 sio;
- u16 status;
- u16 partner;
- u16 tlphy_ctl;
- u16 tlphy_par;
- u16 tlphy_id1, tlphy_id2;
- int i;
-
- phy = priv->phy[priv->phy_num];
-
- data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
- if (priv->tlan_full_duplex)
- data |= TLAN_NET_CMD_DUPLEX;
- tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data);
- data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
- if (priv->phy_num == 0)
- data |= TLAN_NET_MASK_MASK7;
- tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data);
- tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7);
- tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1);
- tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2);
-
- if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) ||
- (priv->aui)) {
- status = MII_GS_LINK;
- netdev_info(dev, "Link forced\n");
- } else {
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
- udelay(1000);
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
- if ((status & MII_GS_LINK) &&
- /* We only support link info on Nat.Sem. PHY's */
- (tlphy_id1 == NAT_SEM_ID1) &&
- (tlphy_id2 == NAT_SEM_ID2)) {
- tlan_mii_read_reg(dev, phy, MII_AN_LPA, &partner);
- tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR, &tlphy_par);
-
- netdev_info(dev,
- "Link active with %s %uMbps %s-Duplex\n",
- !(tlphy_par & TLAN_PHY_AN_EN_STAT)
- ? "forced" : "Autonegotiation enabled,",
- tlphy_par & TLAN_PHY_SPEED_100
- ? 100 : 10,
- tlphy_par & TLAN_PHY_DUPLEX_FULL
- ? "Full" : "Half");
-
- if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
- netdev_info(dev, "Partner capability:");
- for (i = 5; i < 10; i++)
- if (partner & (1 << i))
- pr_cont(" %s", media[i-5]);
- pr_cont("\n");
- }
-
- tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
- TLAN_LED_LINK);
-#ifdef MONITOR
- /* We have link beat..for now anyway */
- priv->link = 1;
- /*Enabling link beat monitoring */
- tlan_set_timer(dev, (10*HZ), TLAN_TIMER_LINK_BEAT);
-#endif
- } else if (status & MII_GS_LINK) {
- netdev_info(dev, "Link active\n");
- tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
- TLAN_LED_LINK);
- }
- }
-
- if (priv->phy_num == 0) {
- tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
- tlphy_ctl |= TLAN_TC_INTEN;
- tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
- sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO);
- sio |= TLAN_NET_SIO_MINTEN;
- tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio);
- }
-
- if (status & MII_GS_LINK) {
- tlan_set_mac(dev, 0, dev->dev_addr);
- priv->phy_online = 1;
- outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1);
- if (debug >= 1 && debug != TLAN_DEBUG_PROBE)
- outb((TLAN_HC_REQ_INT >> 8),
- dev->base_addr + TLAN_HOST_CMD + 1);
- outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
- outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
- netif_carrier_on(dev);
- } else {
- netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
- tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET);
- return;
- }
- tlan_set_multicast_list(dev);
-
-}
-
-
-
-
-/***************************************************************
- * tlan_set_mac
- *
- * Returns:
- * Nothing
- * Parms:
- * dev Pointer to device structure of adapter
- * on which to change the AREG.
- * areg The AREG to set the address in (0 - 3).
- * mac A pointer to an array of chars. Each
- * element stores one byte of the address.
- * IE, it isn't in ascii.
- *
- * This function transfers a MAC address to one of the
- * TLAN AREGs (address registers). The TLAN chip locks
- * the register on writing to offset 0 and unlocks the
- * register after writing to offset 5. If NULL is passed
- * in mac, then the AREG is filled with 0's.
- *
- **************************************************************/
-
-static void tlan_set_mac(struct net_device *dev, int areg, char *mac)
-{
- int i;
-
- areg *= 6;
-
- if (mac != NULL) {
- for (i = 0; i < 6; i++)
- tlan_dio_write8(dev->base_addr,
- TLAN_AREG_0 + areg + i, mac[i]);
- } else {
- for (i = 0; i < 6; i++)
- tlan_dio_write8(dev->base_addr,
- TLAN_AREG_0 + areg + i, 0);
- }
-
-}
-
-
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver PHY layer routines
-
-******************************************************************************
-*****************************************************************************/
-
-
-
-/*********************************************************************
- * tlan_phy_print
- *
- * Returns:
- * Nothing
- * Parms:
- * dev A pointer to the device structure of the
- * TLAN device having the PHYs to be detailed.
- *
- * This function prints the registers a PHY (aka transceiver).
- *
- ********************************************************************/
-
-static void tlan_phy_print(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 i, data0, data1, data2, data3, phy;
-
- phy = priv->phy[priv->phy_num];
-
- if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
- netdev_info(dev, "Unmanaged PHY\n");
- } else if (phy <= TLAN_PHY_MAX_ADDR) {
- netdev_info(dev, "PHY 0x%02x\n", phy);
- pr_info(" Off. +0 +1 +2 +3\n");
- for (i = 0; i < 0x20; i += 4) {
- tlan_mii_read_reg(dev, phy, i, &data0);
- tlan_mii_read_reg(dev, phy, i + 1, &data1);
- tlan_mii_read_reg(dev, phy, i + 2, &data2);
- tlan_mii_read_reg(dev, phy, i + 3, &data3);
- pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n",
- i, data0, data1, data2, data3);
- }
- } else {
- netdev_info(dev, "Invalid PHY\n");
- }
-
-}
-
-
-
-
-/*********************************************************************
- * tlan_phy_detect
- *
- * Returns:
- * Nothing
- * Parms:
- * dev A pointer to the device structure of the adapter
- * for which the PHY needs determined.
- *
- * So far I've found that adapters which have external PHYs
- * may also use the internal PHY for part of the functionality.
- * (eg, AUI/Thinnet). This function finds out if this TLAN
- * chip has an internal PHY, and then finds the first external
- * PHY (starting from address 0) if it exists).
- *
- ********************************************************************/
-
-static void tlan_phy_detect(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 control;
- u16 hi;
- u16 lo;
- u32 phy;
-
- if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
- priv->phy_num = 0xffff;
- return;
- }
-
- tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi);
-
- if (hi != 0xffff)
- priv->phy[0] = TLAN_PHY_MAX_ADDR;
- else
- priv->phy[0] = TLAN_PHY_NONE;
-
- priv->phy[1] = TLAN_PHY_NONE;
- for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) {
- tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control);
- tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi);
- tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo);
- if ((control != 0xffff) ||
- (hi != 0xffff) || (lo != 0xffff)) {
- TLAN_DBG(TLAN_DEBUG_GNRL,
- "PHY found at %02x %04x %04x %04x\n",
- phy, control, hi, lo);
- if ((priv->phy[1] == TLAN_PHY_NONE) &&
- (phy != TLAN_PHY_MAX_ADDR)) {
- priv->phy[1] = phy;
- }
- }
- }
-
- if (priv->phy[1] != TLAN_PHY_NONE)
- priv->phy_num = 1;
- else if (priv->phy[0] != TLAN_PHY_NONE)
- priv->phy_num = 0;
- else
- netdev_info(dev, "Cannot initialize device, no PHY was found!\n");
-
-}
-
-
-
-
-static void tlan_phy_power_down(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 value;
-
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name);
- value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
- tlan_mii_sync(dev->base_addr);
- tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
- if ((priv->phy_num == 0) &&
- (priv->phy[1] != TLAN_PHY_NONE) &&
- (!(priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10))) {
- tlan_mii_sync(dev->base_addr);
- tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value);
- }
-
- /* Wait for 50 ms and powerup
- * This is abitrary. It is intended to make sure the
- * transceiver settles.
- */
- tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_PUP);
-
-}
-
-
-
-
-static void tlan_phy_power_up(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 value;
-
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name);
- tlan_mii_sync(dev->base_addr);
- value = MII_GC_LOOPBK;
- tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
- tlan_mii_sync(dev->base_addr);
- /* Wait for 500 ms and reset the
- * transceiver. The TLAN docs say both 50 ms and
- * 500 ms, so do the longer, just in case.
- */
- tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_RESET);
-
-}
-
-
-
-
-static void tlan_phy_reset(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 phy;
- u16 value;
-
- phy = priv->phy[priv->phy_num];
-
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name);
- tlan_mii_sync(dev->base_addr);
- value = MII_GC_LOOPBK | MII_GC_RESET;
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value);
- tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
- while (value & MII_GC_RESET)
- tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
-
- /* Wait for 500 ms and initialize.
- * I don't remember why I wait this long.
- * I've changed this to 50ms, as it seems long enough.
- */
- tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_START_LINK);
-
-}
-
-
-
-
-static void tlan_phy_start_link(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 ability;
- u16 control;
- u16 data;
- u16 phy;
- u16 status;
- u16 tctl;
-
- phy = priv->phy[priv->phy_num];
- TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name);
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability);
-
- if ((status & MII_GS_AUTONEG) &&
- (!priv->aui)) {
- ability = status >> 11;
- if (priv->speed == TLAN_SPEED_10 &&
- priv->duplex == TLAN_DUPLEX_HALF) {
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000);
- } else if (priv->speed == TLAN_SPEED_10 &&
- priv->duplex == TLAN_DUPLEX_FULL) {
- priv->tlan_full_duplex = true;
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100);
- } else if (priv->speed == TLAN_SPEED_100 &&
- priv->duplex == TLAN_DUPLEX_HALF) {
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000);
- } else if (priv->speed == TLAN_SPEED_100 &&
- priv->duplex == TLAN_DUPLEX_FULL) {
- priv->tlan_full_duplex = true;
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100);
- } else {
-
- /* Set Auto-Neg advertisement */
- tlan_mii_write_reg(dev, phy, MII_AN_ADV,
- (ability << 5) | 1);
- /* Enablee Auto-Neg */
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000);
- /* Restart Auto-Neg */
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200);
- /* Wait for 4 sec for autonegotiation
- * to complete. The max spec time is less than this
- * but the card need additional time to start AN.
- * .5 sec should be plenty extra.
- */
- netdev_info(dev, "Starting autonegotiation\n");
- tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN);
- return;
- }
-
- }
-
- if ((priv->aui) && (priv->phy_num != 0)) {
- priv->phy_num = 0;
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
- | TLAN_NET_CFG_PHY_EN;
- tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
- tlan_set_timer(dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN);
- return;
- } else if (priv->phy_num == 0) {
- control = 0;
- tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl);
- if (priv->aui) {
- tctl |= TLAN_TC_AUISEL;
- } else {
- tctl &= ~TLAN_TC_AUISEL;
- if (priv->duplex == TLAN_DUPLEX_FULL) {
- control |= MII_GC_DUPLEX;
- priv->tlan_full_duplex = true;
- }
- if (priv->speed == TLAN_SPEED_100)
- control |= MII_GC_SPEEDSEL;
- }
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control);
- tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl);
- }
-
- /* Wait for 2 sec to give the transceiver time
- * to establish link.
- */
- tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET);
-
-}
-
-
-
-
-static void tlan_phy_finish_auto_neg(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 an_adv;
- u16 an_lpa;
- u16 data;
- u16 mode;
- u16 phy;
- u16 status;
-
- phy = priv->phy[priv->phy_num];
-
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
- udelay(1000);
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
-
- if (!(status & MII_GS_AUTOCMPLT)) {
- /* Wait for 8 sec to give the process
- * more time. Perhaps we should fail after a while.
- */
- if (!priv->neg_be_verbose++) {
- pr_info("Giving autonegotiation more time.\n");
- pr_info("Please check that your adapter has\n");
- pr_info("been properly connected to a HUB or Switch.\n");
- pr_info("Trying to establish link in the background...\n");
- }
- tlan_set_timer(dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN);
- return;
- }
-
- netdev_info(dev, "Autonegotiation complete\n");
- tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv);
- tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa);
- mode = an_adv & an_lpa & 0x03E0;
- if (mode & 0x0100)
- priv->tlan_full_duplex = true;
- else if (!(mode & 0x0080) && (mode & 0x0040))
- priv->tlan_full_duplex = true;
-
- if ((!(mode & 0x0180)) &&
- (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) &&
- (priv->phy_num != 0)) {
- priv->phy_num = 0;
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
- | TLAN_NET_CFG_PHY_EN;
- tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
- tlan_set_timer(dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN);
- return;
- }
-
- if (priv->phy_num == 0) {
- if ((priv->duplex == TLAN_DUPLEX_FULL) ||
- (an_adv & an_lpa & 0x0040)) {
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
- MII_GC_AUTOENB | MII_GC_DUPLEX);
- netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n");
- } else {
- tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
- MII_GC_AUTOENB);
- netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n");
- }
- }
-
- /* Wait for 100 ms. No reason in partiticular.
- */
- tlan_set_timer(dev, (HZ/10), TLAN_TIMER_FINISH_RESET);
-
-}
-
-#ifdef MONITOR
-
-/*********************************************************************
- *
- * tlan_phy_monitor
- *
- * Returns:
- * None
- *
- * Params:
- * dev The device structure of this device.
- *
- *
- * This function monitors PHY condition by reading the status
- * register via the MII bus. This can be used to give info
- * about link changes (up/down), and possible switch to alternate
- * media.
- *
- *******************************************************************/
-
-void tlan_phy_monitor(struct net_device *dev)
-{
- struct tlan_priv *priv = netdev_priv(dev);
- u16 phy;
- u16 phy_status;
-
- phy = priv->phy[priv->phy_num];
-
- /* Get PHY status register */
- tlan_mii_read_reg(dev, phy, MII_GEN_STS, &phy_status);
-
- /* Check if link has been lost */
- if (!(phy_status & MII_GS_LINK)) {
- if (priv->link) {
- priv->link = 0;
- printk(KERN_DEBUG "TLAN: %s has lost link\n",
- dev->name);
- netif_carrier_off(dev);
- tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
- return;
- }
- }
-
- /* Link restablished? */
- if ((phy_status & MII_GS_LINK) && !priv->link) {
- priv->link = 1;
- printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
- dev->name);
- netif_carrier_on(dev);
- }
-
- /* Setup a new monitor */
- tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
-}
-
-#endif /* MONITOR */
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver MII routines
-
-these routines are based on the information in chap. 2 of the
-"ThunderLAN Programmer's Guide", pp. 15-24.
-
-******************************************************************************
-*****************************************************************************/
-
-
-/***************************************************************
- * tlan_mii_read_reg
- *
- * Returns:
- * false if ack received ok
- * true if no ack received or other error
- *
- * Parms:
- * dev The device structure containing
- * The io address and interrupt count
- * for this device.
- * phy The address of the PHY to be queried.
- * reg The register whose contents are to be
- * retrieved.
- * val A pointer to a variable to store the
- * retrieved value.
- *
- * This function uses the TLAN's MII bus to retrieve the contents
- * of a given register on a PHY. It sends the appropriate info
- * and then reads the 16-bit register value from the MII bus via
- * the TLAN SIO register.
- *
- **************************************************************/
-
-static bool
-tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val)
-{
- u8 nack;
- u16 sio, tmp;
- u32 i;
- bool err;
- int minten;
- struct tlan_priv *priv = netdev_priv(dev);
- unsigned long flags = 0;
-
- err = false;
- outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
- sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- if (!in_irq())
- spin_lock_irqsave(&priv->lock, flags);
-
- tlan_mii_sync(dev->base_addr);
-
- minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
- if (minten)
- tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
-
- tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
- tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */
- tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
- tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
-
-
- tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */
-
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */
-
- nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */
- if (nack) { /* no ACK, so fake it */
- for (i = 0; i < 16; i++) {
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
- }
- tmp = 0xffff;
- err = true;
- } else { /* ACK, so read data */
- for (tmp = 0, i = 0x8000; i; i >>= 1) {
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
- if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio))
- tmp |= i;
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
- }
- }
-
-
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
-
- if (minten)
- tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
-
- *val = tmp;
-
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return err;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_mii_send_data
- *
- * Returns:
- * Nothing
- * Parms:
- * base_port The base IO port of the adapter in
- * question.
- * dev The address of the PHY to be queried.
- * data The value to be placed on the MII bus.
- * num_bits The number of bits in data that are to
- * be placed on the MII bus.
- *
- * This function sends on sequence of bits on the MII
- * configuration bus.
- *
- **************************************************************/
-
-static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits)
-{
- u16 sio;
- u32 i;
-
- if (num_bits == 0)
- return;
-
- outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
- sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
- tlan_set_bit(TLAN_NET_SIO_MTXEN, sio);
-
- for (i = (0x1 << (num_bits - 1)); i; i >>= 1) {
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
- (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
- if (data & i)
- tlan_set_bit(TLAN_NET_SIO_MDATA, sio);
- else
- tlan_clear_bit(TLAN_NET_SIO_MDATA, sio);
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
- (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
- }
-
-}
-
-
-
-
-/***************************************************************
- * TLan_MiiSync
- *
- * Returns:
- * Nothing
- * Parms:
- * base_port The base IO port of the adapter in
- * question.
- *
- * This functions syncs all PHYs in terms of the MII configuration
- * bus.
- *
- **************************************************************/
-
-static void tlan_mii_sync(u16 base_port)
-{
- int i;
- u16 sio;
-
- outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
- sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio);
- for (i = 0; i < 32; i++) {
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
- }
-
-}
-
-
-
-
-/***************************************************************
- * tlan_mii_write_reg
- *
- * Returns:
- * Nothing
- * Parms:
- * dev The device structure for the device
- * to write to.
- * phy The address of the PHY to be written to.
- * reg The register whose contents are to be
- * written.
- * val The value to be written to the register.
- *
- * This function uses the TLAN's MII bus to write the contents of a
- * given register on a PHY. It sends the appropriate info and then
- * writes the 16-bit register value from the MII configuration bus
- * via the TLAN SIO register.
- *
- **************************************************************/
-
-static void
-tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
-{
- u16 sio;
- int minten;
- unsigned long flags = 0;
- struct tlan_priv *priv = netdev_priv(dev);
-
- outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
- sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- if (!in_irq())
- spin_lock_irqsave(&priv->lock, flags);
-
- tlan_mii_sync(dev->base_addr);
-
- minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
- if (minten)
- tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
-
- tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
- tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */
- tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
- tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
-
- tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */
- tlan_mii_send_data(dev->base_addr, val, 16); /* send data */
-
- tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
- tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
-
- if (minten)
- tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
-
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
-
-}
-
-
-
-
-/*****************************************************************************
-******************************************************************************
-
-ThunderLAN driver eeprom routines
-
-the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A
-EEPROM. these functions are based on information in microchip's
-data sheet. I don't know how well this functions will work with
-other Eeproms.
-
-******************************************************************************
-*****************************************************************************/
-
-
-/***************************************************************
- * tlan_ee_send_start
- *
- * Returns:
- * Nothing
- * Parms:
- * io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- *
- * This function sends a start cycle to an EEPROM attached
- * to a TLAN chip.
- *
- **************************************************************/
-
-static void tlan_ee_send_start(u16 io_base)
-{
- u16 sio;
-
- outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
- sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
- tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
- tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
- tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
-
-}
-
-
-
-
-/***************************************************************
- * tlan_ee_send_byte
- *
- * Returns:
- * If the correct ack was received, 0, otherwise 1
- * Parms: io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- * data The 8 bits of information to
- * send to the EEPROM.
- * stop If TLAN_EEPROM_STOP is passed, a
- * stop cycle is sent after the
- * byte is sent after the ack is
- * read.
- *
- * This function sends a byte on the serial EEPROM line,
- * driving the clock to send each bit. The function then
- * reverses transmission direction and reads an acknowledge
- * bit.
- *
- **************************************************************/
-
-static int tlan_ee_send_byte(u16 io_base, u8 data, int stop)
-{
- int err;
- u8 place;
- u16 sio;
-
- outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
- sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- /* Assume clock is low, tx is enabled; */
- for (place = 0x80; place != 0; place >>= 1) {
- if (place & data)
- tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
- else
- tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
- }
- tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio);
- tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
-
- if ((!err) && stop) {
- /* STOP, raise data while clock is high */
- tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
- }
-
- return err;
-
-}
-
-
-
-
-/***************************************************************
- * tlan_ee_receive_byte
- *
- * Returns:
- * Nothing
- * Parms:
- * io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- * data An address to a char to hold the
- * data sent from the EEPROM.
- * stop If TLAN_EEPROM_STOP is passed, a
- * stop cycle is sent after the
- * byte is received, and no ack is
- * sent.
- *
- * This function receives 8 bits of data from the EEPROM
- * over the serial link. It then sends and ack bit, or no
- * ack and a stop bit. This function is used to retrieve
- * data after the address of a byte in the EEPROM has been
- * sent.
- *
- **************************************************************/
-
-static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop)
-{
- u8 place;
- u16 sio;
-
- outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
- sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
- *data = 0;
-
- /* Assume clock is low, tx is enabled; */
- tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
- for (place = 0x80; place; place >>= 1) {
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio))
- *data |= place;
- tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
- }
-
- tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
- if (!stop) {
- tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
- } else {
- tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
- /* STOP, raise data while clock is high */
- tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
- tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
- tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
- }
-
-}
-
-
-
-
-/***************************************************************
- * tlan_ee_read_byte
- *
- * Returns:
- * No error = 0, else, the stage at which the error
- * occurred.
- * Parms:
- * io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- * ee_addr The address of the byte in the
- * EEPROM whose contents are to be
- * retrieved.
- * data An address to a char to hold the
- * data obtained from the EEPROM.
- *
- * This function reads a byte of information from an byte
- * cell in the EEPROM.
- *
- **************************************************************/
-
-static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data)
-{
- int err;
- struct tlan_priv *priv = netdev_priv(dev);
- unsigned long flags = 0;
- int ret = 0;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- tlan_ee_send_start(dev->base_addr);
- err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK);
- if (err) {
- ret = 1;
- goto fail;
- }
- err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK);
- if (err) {
- ret = 2;
- goto fail;
- }
- tlan_ee_send_start(dev->base_addr);
- err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK);
- if (err) {
- ret = 3;
- goto fail;
- }
- tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP);
-fail:
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return ret;
-
-}
-
-
-
git.samba.org / sfrench / cifs-2.6.git / blobdiff