diff options
Diffstat (limited to 'drivers/net/tlan.c')
| -rw-r--r-- | drivers/net/tlan.c | 3258 |
1 files changed, 0 insertions, 3258 deletions
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c deleted file mode 100644 index 145871b3130b..000000000000 --- a/drivers/net/tlan.c +++ /dev/null @@ -1,3258 +0,0 @@ -/******************************************************************************* - * - * 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; - -} - - - |