3345 строки
95 KiB
C
3345 строки
95 KiB
C
/*******************************************************************************
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*
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* Linux ThunderLAN Driver
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*
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* tlan.c
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* by James Banks
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*
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* (C) 1997-1998 Caldera, Inc.
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* (C) 1998 James Banks
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* (C) 1999-2001 Torben Mathiasen
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* (C) 2002 Samuel Chessman
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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** This file is best viewed/edited with columns>=132.
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*
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** Useful (if not required) reading:
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*
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* Texas Instruments, ThunderLAN Programmer's Guide,
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* TI Literature Number SPWU013A
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* available in PDF format from www.ti.com
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* Level One, LXT901 and LXT970 Data Sheets
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* available in PDF format from www.level1.com
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* National Semiconductor, DP83840A Data Sheet
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* available in PDF format from www.national.com
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* Microchip Technology, 24C01A/02A/04A Data Sheet
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* available in PDF format from www.microchip.com
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*
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* Change History
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*
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* Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses
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* new PCI BIOS interface.
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* Alan Cox <alan@redhat.com>: Fixed the out of memory
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* handling.
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*
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* Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer!
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*
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* v1.1 Dec 20, 1999 - Removed linux version checking
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* Patch from Tigran Aivazian.
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* - v1.1 includes Alan's SMP updates.
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* - We still have problems on SMP though,
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* but I'm looking into that.
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*
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* v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock.
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* - Removed dependency of HZ being 100.
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* - We now allow higher priority timers to
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* overwrite timers like TLAN_TIMER_ACTIVITY
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* Patch from John Cagle <john.cagle@compaq.com>.
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* - Fixed a few compiler warnings.
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*
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* v1.3 Feb 04, 2000 - Fixed the remaining HZ issues.
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* - Removed call to pci_present().
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* - Removed SA_INTERRUPT flag from irq handler.
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* - Added __init and __initdata to reduce resisdent
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* code size.
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* - Driver now uses module_init/module_exit.
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* - Rewrote init_module and tlan_probe to
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* share a lot more code. We now use tlan_probe
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* with builtin and module driver.
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* - Driver ported to new net API.
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* - tlan.txt has been reworked to reflect current
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* driver (almost)
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* - Other minor stuff
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*
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* v1.4 Feb 10, 2000 - Updated with more changes required after Dave's
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* network cleanup in 2.3.43pre7 (Tigran & myself)
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* - Minor stuff.
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*
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* v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver
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* if no cable/link were present.
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* - Cosmetic changes.
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* - TODO: Port completely to new PCI/DMA API
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* Auto-Neg fallback.
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*
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* v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't
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* tested it though, as the kernel support is currently
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* broken (2.3.99p4p3).
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* - Updated tlan.txt accordingly.
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* - Adjusted minimum/maximum frame length.
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* - There is now a TLAN website up at
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* http://tlan.kernel.dk
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*
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* v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now
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* reports PHY information when used with Donald
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* Beckers userspace MII diagnostics utility.
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*
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* v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings.
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* - Added link information to Auto-Neg and forced
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* modes. When NIC operates with auto-neg the driver
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* will report Link speed & duplex modes as well as
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* link partner abilities. When forced link is used,
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* the driver will report status of the established
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* link.
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* Please read tlan.txt for additional information.
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* - Removed call to check_region(), and used
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* return value of request_region() instead.
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*
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* v1.8a May 28, 2000 - Minor updates.
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*
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* v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues.
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* - Updated with timer fixes from Andrew Morton.
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* - Fixed module race in TLan_Open.
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* - Added routine to monitor PHY status.
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* - Added activity led support for Proliant devices.
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*
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* v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers
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* like the Compaq NetFlex3/E.
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* - Rewrote tlan_probe to better handle multiple
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* bus probes. Probing and device setup is now
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* done through TLan_Probe and TLan_init_one. Actual
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* hardware probe is done with kernel API and
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* TLan_EisaProbe.
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* - Adjusted debug information for probing.
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* - Fixed bug that would cause general debug information
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* to be printed after driver removal.
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* - Added transmit timeout handling.
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* - Fixed OOM return values in tlan_probe.
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* - Fixed possible mem leak in tlan_exit
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* (now tlan_remove_one).
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* - Fixed timer bug in TLan_phyMonitor.
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* - This driver version is alpha quality, please
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* send me any bug issues you may encounter.
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*
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* v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was
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* set for EISA cards.
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* - Added support for NetFlex3/E with nibble-rate
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* 10Base-T PHY. This is untestet as I haven't got
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* one of these cards.
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* - Fixed timer being added twice.
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* - Disabled PhyMonitoring by default as this is
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* work in progress. Define MONITOR to enable it.
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* - Now we don't display link info with PHYs that
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* doesn't support it (level1).
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* - Incresed tx_timeout beacuse of auto-neg.
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* - Adjusted timers for forced speeds.
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*
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* v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.)
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*
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* v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues
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* when link can't be established.
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* - Added the bbuf option as a kernel parameter.
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* - Fixed ioaddr probe bug.
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* - Fixed stupid deadlock with MII interrupts.
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* - Added support for speed/duplex selection with
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* multiple nics.
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* - Added partly fix for TX Channel lockup with
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* TLAN v1.0 silicon. This needs to be investigated
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* further.
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*
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* v1.14 Dec 16, 2000 - Added support for servicing multiple frames per.
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* interrupt. Thanks goes to
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* Adam Keys <adam@ti.com>
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* Denis Beaudoin <dbeaudoin@ti.com>
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* for providing the patch.
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* - Fixed auto-neg output when using multiple
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* adapters.
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* - Converted to use new taskq interface.
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*
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* v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.)
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*
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* Samuel Chessman <chessman@tux.org> New Maintainer!
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*
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* v1.15 Apr 4, 2002 - Correct operation when aui=1 to be
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* 10T half duplex no loopback
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* Thanks to Gunnar Eikman
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*******************************************************************************/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/eisa.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/delay.h>
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#include <linux/spinlock.h>
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#include <linux/workqueue.h>
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#include <linux/mii.h>
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#include "tlan.h"
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typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 );
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/* For removing EISA devices */
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static struct net_device *TLan_Eisa_Devices;
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static int TLanDevicesInstalled;
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/* Set speed, duplex and aui settings */
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static int aui[MAX_TLAN_BOARDS];
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static int duplex[MAX_TLAN_BOARDS];
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static int speed[MAX_TLAN_BOARDS];
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static int boards_found;
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module_param_array(aui, int, NULL, 0);
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module_param_array(duplex, int, NULL, 0);
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module_param_array(speed, int, NULL, 0);
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MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
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MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
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MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)");
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MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
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MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
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MODULE_LICENSE("GPL");
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/* Define this to enable Link beat monitoring */
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#undef MONITOR
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/* Turn on debugging. See Documentation/networking/tlan.txt for details */
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static int debug;
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module_param(debug, int, 0);
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MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
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static int bbuf;
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module_param(bbuf, int, 0);
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MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)");
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static u8 *TLanPadBuffer;
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static dma_addr_t TLanPadBufferDMA;
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static char TLanSignature[] = "TLAN";
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static const char tlan_banner[] = "ThunderLAN driver v1.15\n";
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static int tlan_have_pci;
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static int tlan_have_eisa;
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static const char *media[] = {
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"10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ",
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"100baseTx-FD", "100baseT4", NULL
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};
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static struct board {
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const char *deviceLabel;
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u32 flags;
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u16 addrOfs;
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} board_info[] = {
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{ "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
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{ "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
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{ "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
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{ "Compaq NetFlex-3/P", TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
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{ "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
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{ "Compaq Netelligent Integrated 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
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{ "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 },
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{ "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 },
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{ "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
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{ "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 },
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{ "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 },
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{ "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
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{ "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 },
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{ "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
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TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
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{ "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
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};
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static struct pci_device_id tlan_pci_tbl[] = {
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
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{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
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{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
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{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
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{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
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{ 0,}
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};
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MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
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static void TLan_EisaProbe( void );
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static void TLan_Eisa_Cleanup( void );
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static int TLan_Init( struct net_device * );
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static int TLan_Open( struct net_device *dev );
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static int TLan_StartTx( struct sk_buff *, struct net_device *);
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static irqreturn_t TLan_HandleInterrupt( int, void *);
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static int TLan_Close( struct net_device *);
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static struct net_device_stats *TLan_GetStats( struct net_device *);
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static void TLan_SetMulticastList( struct net_device *);
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static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd);
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static int TLan_probe1( struct pci_dev *pdev, long ioaddr, int irq, int rev, const struct pci_device_id *ent);
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static void TLan_tx_timeout( struct net_device *dev);
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static void TLan_tx_timeout_work(struct work_struct *work);
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static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent);
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static u32 TLan_HandleInvalid( struct net_device *, u16 );
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static u32 TLan_HandleTxEOF( struct net_device *, u16 );
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static u32 TLan_HandleStatOverflow( struct net_device *, u16 );
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static u32 TLan_HandleRxEOF( struct net_device *, u16 );
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static u32 TLan_HandleDummy( struct net_device *, u16 );
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static u32 TLan_HandleTxEOC( struct net_device *, u16 );
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static u32 TLan_HandleStatusCheck( struct net_device *, u16 );
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static u32 TLan_HandleRxEOC( struct net_device *, u16 );
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static void TLan_Timer( unsigned long );
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static void TLan_ResetLists( struct net_device * );
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static void TLan_FreeLists( struct net_device * );
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static void TLan_PrintDio( u16 );
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static void TLan_PrintList( TLanList *, char *, int );
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static void TLan_ReadAndClearStats( struct net_device *, int );
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static void TLan_ResetAdapter( struct net_device * );
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static void TLan_FinishReset( struct net_device * );
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static void TLan_SetMac( struct net_device *, int areg, char *mac );
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static void TLan_PhyPrint( struct net_device * );
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static void TLan_PhyDetect( struct net_device * );
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static void TLan_PhyPowerDown( struct net_device * );
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static void TLan_PhyPowerUp( struct net_device * );
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static void TLan_PhyReset( struct net_device * );
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static void TLan_PhyStartLink( struct net_device * );
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static void TLan_PhyFinishAutoNeg( struct net_device * );
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#ifdef MONITOR
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static void TLan_PhyMonitor( struct net_device * );
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#endif
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/*
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static int TLan_PhyNop( struct net_device * );
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static int TLan_PhyInternalCheck( struct net_device * );
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static int TLan_PhyInternalService( struct net_device * );
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static int TLan_PhyDp83840aCheck( struct net_device * );
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*/
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static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * );
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static void TLan_MiiSendData( u16, u32, unsigned );
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static void TLan_MiiSync( u16 );
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static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 );
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static void TLan_EeSendStart( u16 );
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static int TLan_EeSendByte( u16, u8, int );
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static void TLan_EeReceiveByte( u16, u8 *, int );
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static int TLan_EeReadByte( struct net_device *, u8, u8 * );
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static void
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TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb)
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{
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unsigned long addr = (unsigned long)skb;
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tag->buffer[9].address = (u32)addr;
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addr >>= 31; /* >>= 32 is undefined for 32bit arch, stupid C */
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addr >>= 1;
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tag->buffer[8].address = (u32)addr;
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}
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static struct sk_buff *
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TLan_GetSKB( struct tlan_list_tag *tag)
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{
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unsigned long addr = tag->buffer[8].address;
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addr <<= 31;
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addr <<= 1;
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addr |= tag->buffer[9].address;
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return (struct sk_buff *) addr;
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}
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static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = {
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TLan_HandleInvalid,
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TLan_HandleTxEOF,
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TLan_HandleStatOverflow,
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TLan_HandleRxEOF,
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TLan_HandleDummy,
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TLan_HandleTxEOC,
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TLan_HandleStatusCheck,
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TLan_HandleRxEOC
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};
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static inline void
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TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type )
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{
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TLanPrivateInfo *priv = netdev_priv(dev);
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unsigned long flags = 0;
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if (!in_irq())
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spin_lock_irqsave(&priv->lock, flags);
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if ( priv->timer.function != NULL &&
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priv->timerType != TLAN_TIMER_ACTIVITY ) {
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if (!in_irq())
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spin_unlock_irqrestore(&priv->lock, flags);
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return;
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}
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priv->timer.function = &TLan_Timer;
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if (!in_irq())
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spin_unlock_irqrestore(&priv->lock, flags);
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priv->timer.data = (unsigned long) dev;
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priv->timerSetAt = jiffies;
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priv->timerType = type;
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mod_timer(&priv->timer, jiffies + ticks);
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} /* TLan_SetTimer */
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/*****************************************************************************
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******************************************************************************
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ThunderLAN Driver Primary Functions
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These functions are more or less common to all Linux network drivers.
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******************************************************************************
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*****************************************************************************/
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/***************************************************************
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* tlan_remove_one
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*
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* Returns:
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* Nothing
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* Parms:
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* None
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*
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* 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 );
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
|
|
unregister_netdev( dev );
|
|
|
|
if ( priv->dmaStorage ) {
|
|
pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA );
|
|
}
|
|
|
|
#ifdef CONFIG_PCI
|
|
pci_release_regions(pdev);
|
|
#endif
|
|
|
|
free_netdev( dev );
|
|
|
|
pci_set_drvdata( pdev, NULL );
|
|
}
|
|
|
|
static struct pci_driver tlan_driver = {
|
|
.name = "tlan",
|
|
.id_table = tlan_pci_tbl,
|
|
.probe = tlan_init_one,
|
|
.remove = __devexit_p(tlan_remove_one),
|
|
};
|
|
|
|
static int __init tlan_probe(void)
|
|
{
|
|
int rc = -ENODEV;
|
|
|
|
printk(KERN_INFO "%s", tlan_banner);
|
|
|
|
TLanPadBuffer = (u8 *) pci_alloc_consistent(NULL, TLAN_MIN_FRAME_SIZE, &TLanPadBufferDMA);
|
|
|
|
if (TLanPadBuffer == NULL) {
|
|
printk(KERN_ERR "TLAN: Could not allocate memory for pad buffer.\n");
|
|
rc = -ENOMEM;
|
|
goto err_out;
|
|
}
|
|
|
|
memset(TLanPadBuffer, 0, TLAN_MIN_FRAME_SIZE);
|
|
|
|
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) {
|
|
printk(KERN_ERR "TLAN: Could not register pci driver.\n");
|
|
goto err_out_pci_free;
|
|
}
|
|
|
|
TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
|
|
TLan_EisaProbe();
|
|
|
|
printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n",
|
|
TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s",
|
|
tlan_have_pci, tlan_have_eisa);
|
|
|
|
if (TLanDevicesInstalled == 0) {
|
|
rc = -ENODEV;
|
|
goto err_out_pci_unreg;
|
|
}
|
|
return 0;
|
|
|
|
err_out_pci_unreg:
|
|
pci_unregister_driver(&tlan_driver);
|
|
err_out_pci_free:
|
|
pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA);
|
|
err_out:
|
|
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;
|
|
TLanPrivateInfo *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, TLanSignature);
|
|
if (rc) {
|
|
printk(KERN_ERR "TLAN: Could not reserve IO regions\n");
|
|
goto err_out;
|
|
}
|
|
}
|
|
#endif /* CONFIG_PCI */
|
|
|
|
dev = alloc_etherdev(sizeof(TLanPrivateInfo));
|
|
if (dev == NULL) {
|
|
printk(KERN_ERR "TLAN: Could not allocate memory for device.\n");
|
|
rc = -ENOMEM;
|
|
goto err_out_regions;
|
|
}
|
|
SET_NETDEV_DEV(dev, &pdev->dev);
|
|
|
|
priv = netdev_priv(dev);
|
|
|
|
priv->pciDev = 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_32BIT_MASK);
|
|
if (rc) {
|
|
printk(KERN_ERR "TLAN: 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) {
|
|
printk(KERN_ERR "TLAN: No IO mappings available\n");
|
|
rc = -EIO;
|
|
goto err_out_free_dev;
|
|
}
|
|
|
|
dev->base_addr = pci_io_base;
|
|
dev->irq = pdev->irq;
|
|
priv->adapterRev = 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->adapterRev = 23; /* TLAN 2.3 */
|
|
} else {
|
|
priv->adapter = &board_info[14];
|
|
priv->adapterRev = 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) {
|
|
printk(KERN_ERR "TLAN: Could not set up device.\n");
|
|
goto err_out_free_dev;
|
|
}
|
|
|
|
rc = register_netdev(dev);
|
|
if (rc) {
|
|
printk(KERN_ERR "TLAN: Could not register device.\n");
|
|
goto err_out_uninit;
|
|
}
|
|
|
|
|
|
TLanDevicesInstalled++;
|
|
boards_found++;
|
|
|
|
/* pdev is NULL if this is an EISA device */
|
|
if (pdev)
|
|
tlan_have_pci++;
|
|
else {
|
|
priv->nextDevice = TLan_Eisa_Devices;
|
|
TLan_Eisa_Devices = dev;
|
|
tlan_have_eisa++;
|
|
}
|
|
|
|
printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n",
|
|
dev->name,
|
|
(int) dev->irq,
|
|
(int) dev->base_addr,
|
|
priv->adapter->deviceLabel,
|
|
priv->adapterRev);
|
|
return 0;
|
|
|
|
err_out_uninit:
|
|
pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage,
|
|
priv->dmaStorageDMA );
|
|
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;
|
|
TLanPrivateInfo *priv;
|
|
|
|
while( tlan_have_eisa ) {
|
|
dev = TLan_Eisa_Devices;
|
|
priv = netdev_priv(dev);
|
|
if (priv->dmaStorage) {
|
|
pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA );
|
|
}
|
|
release_region( dev->base_addr, 0x10);
|
|
unregister_netdev( dev );
|
|
TLan_Eisa_Devices = priv->nextDevice;
|
|
free_netdev( dev );
|
|
tlan_have_eisa--;
|
|
}
|
|
}
|
|
|
|
|
|
static void __exit tlan_exit(void)
|
|
{
|
|
pci_unregister_driver(&tlan_driver);
|
|
|
|
if (tlan_have_eisa)
|
|
TLan_Eisa_Cleanup();
|
|
|
|
pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA);
|
|
|
|
}
|
|
|
|
|
|
/* Module loading/unloading */
|
|
module_init(tlan_probe);
|
|
module_exit(tlan_exit);
|
|
|
|
|
|
|
|
/**************************************************************
|
|
* TLan_EisaProbe
|
|
*
|
|
* 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_EisaProbe (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, TLanSignature) == 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;
|
|
}
|
|
|
|
if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */
|
|
release_region (ioaddr, 0x10);
|
|
goto out2;
|
|
}
|
|
|
|
if (debug == 0x10)
|
|
printk("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)
|
|
printk("None found\n");
|
|
continue;
|
|
|
|
out2: if (debug == 0x10)
|
|
printk("Card found but it is not enabled, skipping\n");
|
|
continue;
|
|
|
|
}
|
|
|
|
} /* TLan_EisaProbe */
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void TLan_Poll(struct net_device *dev)
|
|
{
|
|
disable_irq(dev->irq);
|
|
TLan_HandleInterrupt(dev->irq, dev);
|
|
enable_irq(dev->irq);
|
|
}
|
|
#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;
|
|
TLanPrivateInfo *priv;
|
|
|
|
priv = netdev_priv(dev);
|
|
|
|
if ( bbuf ) {
|
|
dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
|
|
* ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE );
|
|
} else {
|
|
dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
|
|
* ( sizeof(TLanList) );
|
|
}
|
|
priv->dmaStorage = pci_alloc_consistent(priv->pciDev, dma_size, &priv->dmaStorageDMA);
|
|
priv->dmaSize = dma_size;
|
|
|
|
if ( priv->dmaStorage == NULL ) {
|
|
printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n",
|
|
dev->name );
|
|
return -ENOMEM;
|
|
}
|
|
memset( priv->dmaStorage, 0, dma_size );
|
|
priv->rxList = (TLanList *)
|
|
( ( ( (u32) priv->dmaStorage ) + 7 ) & 0xFFFFFFF8 );
|
|
priv->rxListDMA = ( ( ( (u32) priv->dmaStorageDMA ) + 7 ) & 0xFFFFFFF8 );
|
|
priv->txList = priv->rxList + TLAN_NUM_RX_LISTS;
|
|
priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS;
|
|
if ( bbuf ) {
|
|
priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS );
|
|
priv->rxBufferDMA =priv->txListDMA + sizeof(TLanList) * TLAN_NUM_TX_LISTS;
|
|
priv->txBuffer = priv->rxBuffer + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
|
|
priv->txBufferDMA = priv->rxBufferDMA + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
|
|
}
|
|
|
|
err = 0;
|
|
for ( i = 0; i < 6 ; i++ )
|
|
err |= TLan_EeReadByte( dev,
|
|
(u8) priv->adapter->addrOfs + i,
|
|
(u8 *) &dev->dev_addr[i] );
|
|
if ( err ) {
|
|
printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n",
|
|
dev->name,
|
|
err );
|
|
}
|
|
dev->addr_len = 6;
|
|
|
|
netif_carrier_off(dev);
|
|
|
|
/* Device methods */
|
|
dev->open = &TLan_Open;
|
|
dev->hard_start_xmit = &TLan_StartTx;
|
|
dev->stop = &TLan_Close;
|
|
dev->get_stats = &TLan_GetStats;
|
|
dev->set_multicast_list = &TLan_SetMulticastList;
|
|
dev->do_ioctl = &TLan_ioctl;
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
dev->poll_controller = &TLan_Poll;
|
|
#endif
|
|
dev->tx_timeout = &TLan_tx_timeout;
|
|
dev->watchdog_timeo = TX_TIMEOUT;
|
|
|
|
return 0;
|
|
|
|
} /* TLan_Init */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* 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 )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
int err;
|
|
|
|
priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION );
|
|
err = request_irq( dev->irq, TLan_HandleInterrupt, IRQF_SHARED, TLanSignature, dev );
|
|
|
|
if ( err ) {
|
|
printk(KERN_ERR "TLAN: Cannot open %s because IRQ %d is already in use.\n", dev->name, dev->irq );
|
|
return err;
|
|
}
|
|
|
|
init_timer(&priv->timer);
|
|
netif_start_queue(dev);
|
|
|
|
/* NOTE: It might not be necessary to read the stats before a
|
|
reset if you don't care what the values are.
|
|
*/
|
|
TLan_ResetLists( dev );
|
|
TLan_ReadAndClearStats( dev, TLAN_IGNORE );
|
|
TLan_ResetAdapter( dev );
|
|
|
|
TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", dev->name, priv->tlanRev );
|
|
|
|
return 0;
|
|
|
|
} /* TLan_Open */
|
|
|
|
|
|
|
|
/**************************************************************
|
|
* 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)
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
struct mii_ioctl_data *data = if_mii(rq);
|
|
u32 phy = priv->phy[priv->phyNum];
|
|
|
|
if (!priv->phyOnline)
|
|
return -EAGAIN;
|
|
|
|
switch(cmd) {
|
|
case SIOCGMIIPHY: /* Get address of MII PHY in use. */
|
|
data->phy_id = phy;
|
|
|
|
|
|
case SIOCGMIIREG: /* Read MII PHY register. */
|
|
TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out);
|
|
return 0;
|
|
|
|
|
|
case SIOCSMIIREG: /* Write MII PHY register. */
|
|
if (!capable(CAP_NET_ADMIN))
|
|
return -EPERM;
|
|
TLan_MiiWriteReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
|
|
return 0;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
} /* tlan_ioctl */
|
|
|
|
|
|
/***************************************************************
|
|
* 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_FreeLists( dev );
|
|
TLan_ResetLists( dev );
|
|
TLan_ReadAndClearStats( dev, TLAN_IGNORE );
|
|
TLan_ResetAdapter( dev );
|
|
dev->trans_start = jiffies;
|
|
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)
|
|
{
|
|
TLanPrivateInfo *priv =
|
|
container_of(work, TLanPrivateInfo, tlan_tqueue);
|
|
|
|
TLan_tx_timeout(priv->dev);
|
|
}
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_StartTx
|
|
*
|
|
* 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 int TLan_StartTx( struct sk_buff *skb, struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
TLanList *tail_list;
|
|
dma_addr_t tail_list_phys;
|
|
u8 *tail_buffer;
|
|
int pad;
|
|
unsigned long flags;
|
|
|
|
if ( ! priv->phyOnline ) {
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", dev->name );
|
|
dev_kfree_skb_any(skb);
|
|
return 0;
|
|
}
|
|
|
|
tail_list = priv->txList + priv->txTail;
|
|
tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail;
|
|
|
|
if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) {
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", dev->name, priv->txHead, priv->txTail );
|
|
netif_stop_queue(dev);
|
|
priv->txBusyCount++;
|
|
return 1;
|
|
}
|
|
|
|
tail_list->forward = 0;
|
|
|
|
if ( bbuf ) {
|
|
tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE );
|
|
skb_copy_from_linear_data(skb, tail_buffer, skb->len);
|
|
} else {
|
|
tail_list->buffer[0].address = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE);
|
|
TLan_StoreSKB(tail_list, skb);
|
|
}
|
|
|
|
pad = TLAN_MIN_FRAME_SIZE - skb->len;
|
|
|
|
if ( pad > 0 ) {
|
|
tail_list->frameSize = (u16) skb->len + pad;
|
|
tail_list->buffer[0].count = (u32) skb->len;
|
|
tail_list->buffer[1].count = TLAN_LAST_BUFFER | (u32) pad;
|
|
tail_list->buffer[1].address = TLanPadBufferDMA;
|
|
} else {
|
|
tail_list->frameSize = (u16) skb->len;
|
|
tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len;
|
|
tail_list->buffer[1].count = 0;
|
|
tail_list->buffer[1].address = 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
tail_list->cStat = TLAN_CSTAT_READY;
|
|
if ( ! priv->txInProgress ) {
|
|
priv->txInProgress = 1;
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Starting TX on buffer %d\n", priv->txTail );
|
|
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->txTail );
|
|
if ( priv->txTail == 0 ) {
|
|
( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = tail_list_phys;
|
|
} else {
|
|
( priv->txList + ( priv->txTail - 1 ) )->forward = tail_list_phys;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS );
|
|
|
|
if ( bbuf )
|
|
dev_kfree_skb_any(skb);
|
|
|
|
dev->trans_start = jiffies;
|
|
return 0;
|
|
|
|
} /* TLan_StartTx */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_HandleInterrupt
|
|
*
|
|
* 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_HandleInterrupt(int irq, void *dev_id)
|
|
{
|
|
u32 ack;
|
|
struct net_device *dev;
|
|
u32 host_cmd;
|
|
u16 host_int;
|
|
int type;
|
|
TLanPrivateInfo *priv;
|
|
|
|
dev = dev_id;
|
|
priv = netdev_priv(dev);
|
|
|
|
spin_lock(&priv->lock);
|
|
|
|
host_int = inw( dev->base_addr + TLAN_HOST_INT );
|
|
outw( host_int, dev->base_addr + TLAN_HOST_INT );
|
|
|
|
type = ( host_int & TLAN_HI_IT_MASK ) >> 2;
|
|
|
|
ack = TLanIntVector[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_HANDLED;
|
|
} /* TLan_HandleInterrupts */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* 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)
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
|
|
netif_stop_queue(dev);
|
|
priv->neg_be_verbose = 0;
|
|
|
|
TLan_ReadAndClearStats( dev, TLAN_RECORD );
|
|
outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
|
|
if ( priv->timer.function != NULL ) {
|
|
del_timer_sync( &priv->timer );
|
|
priv->timer.function = NULL;
|
|
}
|
|
|
|
free_irq( dev->irq, dev );
|
|
TLan_FreeLists( dev );
|
|
TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name );
|
|
|
|
return 0;
|
|
|
|
} /* TLan_Close */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_GetStats
|
|
*
|
|
* 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_GetStats( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
int i;
|
|
|
|
/* Should only read stats if open ? */
|
|
TLan_ReadAndClearStats( dev, TLAN_RECORD );
|
|
|
|
TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, priv->rxEocCount );
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, priv->txBusyCount );
|
|
if ( debug & TLAN_DEBUG_GNRL ) {
|
|
TLan_PrintDio( dev->base_addr );
|
|
TLan_PhyPrint( dev );
|
|
}
|
|
if ( debug & TLAN_DEBUG_LIST ) {
|
|
for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ )
|
|
TLan_PrintList( priv->rxList + i, "RX", i );
|
|
for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ )
|
|
TLan_PrintList( priv->txList + i, "TX", i );
|
|
}
|
|
|
|
return ( &( (TLanPrivateInfo *) netdev_priv(dev) )->stats );
|
|
|
|
} /* TLan_GetStats */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_SetMulticastList
|
|
*
|
|
* 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_SetMulticastList( struct net_device *dev )
|
|
{
|
|
struct dev_mc_list *dmi = dev->mc_list;
|
|
u32 hash1 = 0;
|
|
u32 hash2 = 0;
|
|
int i;
|
|
u32 offset;
|
|
u8 tmp;
|
|
|
|
if ( dev->flags & IFF_PROMISC ) {
|
|
tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
|
|
TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF );
|
|
} else {
|
|
tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
|
|
TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF );
|
|
if ( dev->flags & IFF_ALLMULTI ) {
|
|
for ( i = 0; i < 3; i++ )
|
|
TLan_SetMac( dev, i + 1, NULL );
|
|
TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF );
|
|
TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF );
|
|
} else {
|
|
for ( i = 0; i < dev->mc_count; i++ ) {
|
|
if ( i < 3 ) {
|
|
TLan_SetMac( dev, i + 1, (char *) &dmi->dmi_addr );
|
|
} else {
|
|
offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr );
|
|
if ( offset < 32 )
|
|
hash1 |= ( 1 << offset );
|
|
else
|
|
hash2 |= ( 1 << ( offset - 32 ) );
|
|
}
|
|
dmi = dmi->next;
|
|
}
|
|
for ( ; i < 3; i++ )
|
|
TLan_SetMac( dev, i + 1, NULL );
|
|
TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 );
|
|
TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 );
|
|
}
|
|
}
|
|
|
|
} /* TLan_SetMulticastList */
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
******************************************************************************
|
|
|
|
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_HandleInvalid
|
|
*
|
|
* Returns:
|
|
* 0
|
|
* Parms:
|
|
* dev Device assigned the IRQ that was
|
|
* raised.
|
|
* host_int The contents of the HOST_INT
|
|
* port.
|
|
*
|
|
* This function handles invalid interrupts. This should
|
|
* never happen unless some other adapter is trying to use
|
|
* the IRQ line assigned to the device.
|
|
*
|
|
**************************************************************/
|
|
|
|
static u32 TLan_HandleInvalid( struct net_device *dev, u16 host_int )
|
|
{
|
|
/* printk( "TLAN: Invalid interrupt on %s.\n", dev->name ); */
|
|
return 0;
|
|
|
|
} /* TLan_HandleInvalid */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_HandleTxEOF
|
|
*
|
|
* 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_HandleTxEOF( struct net_device *dev, u16 host_int )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
int eoc = 0;
|
|
TLanList *head_list;
|
|
dma_addr_t head_list_phys;
|
|
u32 ack = 0;
|
|
u16 tmpCStat;
|
|
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", priv->txHead, priv->txTail );
|
|
head_list = priv->txList + priv->txHead;
|
|
|
|
while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
|
|
ack++;
|
|
if ( ! bbuf ) {
|
|
struct sk_buff *skb = TLan_GetSKB(head_list);
|
|
pci_unmap_single(priv->pciDev, head_list->buffer[0].address, skb->len, PCI_DMA_TODEVICE);
|
|
dev_kfree_skb_any(skb);
|
|
head_list->buffer[8].address = 0;
|
|
head_list->buffer[9].address = 0;
|
|
}
|
|
|
|
if ( tmpCStat & TLAN_CSTAT_EOC )
|
|
eoc = 1;
|
|
|
|
priv->stats.tx_bytes += head_list->frameSize;
|
|
|
|
head_list->cStat = TLAN_CSTAT_UNUSED;
|
|
netif_start_queue(dev);
|
|
CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS );
|
|
head_list = priv->txList + priv->txHead;
|
|
}
|
|
|
|
if (!ack)
|
|
printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n");
|
|
|
|
if ( eoc ) {
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n", priv->txHead, priv->txTail );
|
|
head_list = priv->txList + priv->txHead;
|
|
head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
|
|
if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
|
|
outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
|
|
ack |= TLAN_HC_GO;
|
|
} else {
|
|
priv->txInProgress = 0;
|
|
}
|
|
}
|
|
|
|
if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
|
|
TLan_DioWrite8( 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->timerSetAt = jiffies;
|
|
priv->timerType = TLAN_TIMER_ACTIVITY;
|
|
add_timer(&priv->timer);
|
|
} else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
|
|
priv->timerSetAt = jiffies;
|
|
}
|
|
}
|
|
|
|
return ack;
|
|
|
|
} /* TLan_HandleTxEOF */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* 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_HandleStatOverflow( struct net_device *dev, u16 host_int )
|
|
{
|
|
TLan_ReadAndClearStats( dev, TLAN_RECORD );
|
|
|
|
return 1;
|
|
|
|
} /* TLan_HandleStatOverflow */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* 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_HandleRxEOF( struct net_device *dev, u16 host_int )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u32 ack = 0;
|
|
int eoc = 0;
|
|
u8 *head_buffer;
|
|
TLanList *head_list;
|
|
struct sk_buff *skb;
|
|
TLanList *tail_list;
|
|
void *t;
|
|
u32 frameSize;
|
|
u16 tmpCStat;
|
|
dma_addr_t head_list_phys;
|
|
|
|
TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail );
|
|
head_list = priv->rxList + priv->rxHead;
|
|
head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
|
|
|
|
while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
|
|
frameSize = head_list->frameSize;
|
|
ack++;
|
|
if (tmpCStat & TLAN_CSTAT_EOC)
|
|
eoc = 1;
|
|
|
|
if (bbuf) {
|
|
skb = dev_alloc_skb(frameSize + 7);
|
|
if (skb == NULL)
|
|
printk(KERN_INFO "TLAN: Couldn't allocate memory for received data.\n");
|
|
else {
|
|
head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE);
|
|
skb_reserve(skb, 2);
|
|
t = (void *) skb_put(skb, frameSize);
|
|
|
|
priv->stats.rx_bytes += head_list->frameSize;
|
|
|
|
memcpy( t, head_buffer, frameSize );
|
|
skb->protocol = eth_type_trans( skb, dev );
|
|
netif_rx( skb );
|
|
}
|
|
} else {
|
|
struct sk_buff *new_skb;
|
|
|
|
/*
|
|
* I changed the algorithm here. What we now do
|
|
* is allocate the new frame. If this fails we
|
|
* simply recycle the frame.
|
|
*/
|
|
|
|
new_skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 );
|
|
|
|
if ( new_skb != NULL ) {
|
|
skb = TLan_GetSKB(head_list);
|
|
pci_unmap_single(priv->pciDev, head_list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
|
|
skb_trim( skb, frameSize );
|
|
|
|
priv->stats.rx_bytes += frameSize;
|
|
|
|
skb->protocol = eth_type_trans( skb, dev );
|
|
netif_rx( skb );
|
|
|
|
skb_reserve( new_skb, 2 );
|
|
t = (void *) skb_put( new_skb, TLAN_MAX_FRAME_SIZE );
|
|
head_list->buffer[0].address = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
|
|
head_list->buffer[8].address = (u32) t;
|
|
TLan_StoreSKB(head_list, new_skb);
|
|
} else
|
|
printk(KERN_WARNING "TLAN: Couldn't allocate memory for received data.\n" );
|
|
}
|
|
|
|
head_list->forward = 0;
|
|
head_list->cStat = 0;
|
|
tail_list = priv->rxList + priv->rxTail;
|
|
tail_list->forward = head_list_phys;
|
|
|
|
CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS );
|
|
CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS );
|
|
head_list = priv->rxList + priv->rxHead;
|
|
head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
|
|
}
|
|
|
|
if (!ack)
|
|
printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n");
|
|
|
|
|
|
|
|
|
|
if ( eoc ) {
|
|
TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail );
|
|
head_list = priv->rxList + priv->rxHead;
|
|
head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
|
|
outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
|
|
ack |= TLAN_HC_GO | TLAN_HC_RT;
|
|
priv->rxEocCount++;
|
|
}
|
|
|
|
if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
|
|
TLan_DioWrite8( 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->timerSetAt = jiffies;
|
|
priv->timerType = TLAN_TIMER_ACTIVITY;
|
|
add_timer(&priv->timer);
|
|
} else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
|
|
priv->timerSetAt = jiffies;
|
|
}
|
|
}
|
|
|
|
dev->last_rx = jiffies;
|
|
|
|
return ack;
|
|
|
|
} /* TLan_HandleRxEOF */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_HandleDummy
|
|
*
|
|
* 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_HandleDummy( struct net_device *dev, u16 host_int )
|
|
{
|
|
printk( "TLAN: Test interrupt on %s.\n", dev->name );
|
|
return 1;
|
|
|
|
} /* TLan_HandleDummy */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_HandleTxEOC
|
|
*
|
|
* 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_HandleTxEOC( struct net_device *dev, u16 host_int )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
TLanList *head_list;
|
|
dma_addr_t head_list_phys;
|
|
u32 ack = 1;
|
|
|
|
host_int = 0;
|
|
if ( priv->tlanRev < 0x30 ) {
|
|
TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", priv->txHead, priv->txTail );
|
|
head_list = priv->txList + priv->txHead;
|
|
head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
|
|
if ( ( head_list->cStat & 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->txInProgress = 0;
|
|
}
|
|
}
|
|
|
|
return ack;
|
|
|
|
} /* TLan_HandleTxEOC */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_HandleStatusCheck
|
|
*
|
|
* 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_HandleStatusCheck( struct net_device *dev, u16 host_int )
|
|
{
|
|
TLanPrivateInfo *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 );
|
|
printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error );
|
|
TLan_ReadAndClearStats( 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->phyNum];
|
|
|
|
net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS );
|
|
if ( net_sts ) {
|
|
TLan_DioWrite8( 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->phyNum == 0 ) ) {
|
|
TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts );
|
|
TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
|
|
if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
|
|
tlphy_ctl |= TLAN_TC_SWAPOL;
|
|
TLan_MiiWriteReg( 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_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
|
|
}
|
|
|
|
if (debug) {
|
|
TLan_PhyPrint( dev );
|
|
}
|
|
}
|
|
}
|
|
|
|
return ack;
|
|
|
|
} /* TLan_HandleStatusCheck */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_HandleRxEOC
|
|
*
|
|
* 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_HandleRxEOC( struct net_device *dev, u16 host_int )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
dma_addr_t head_list_phys;
|
|
u32 ack = 1;
|
|
|
|
if ( priv->tlanRev < 0x30 ) {
|
|
TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", priv->rxHead, priv->rxTail );
|
|
head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
|
|
outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
|
|
ack |= TLAN_HC_GO | TLAN_HC_RT;
|
|
priv->rxEocCount++;
|
|
}
|
|
|
|
return ack;
|
|
|
|
} /* TLan_HandleRxEOC */
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
******************************************************************************
|
|
|
|
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;
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u32 elapsed;
|
|
unsigned long flags = 0;
|
|
|
|
priv->timer.function = NULL;
|
|
|
|
switch ( priv->timerType ) {
|
|
#ifdef MONITOR
|
|
case TLAN_TIMER_LINK_BEAT:
|
|
TLan_PhyMonitor( dev );
|
|
break;
|
|
#endif
|
|
case TLAN_TIMER_PHY_PDOWN:
|
|
TLan_PhyPowerDown( dev );
|
|
break;
|
|
case TLAN_TIMER_PHY_PUP:
|
|
TLan_PhyPowerUp( dev );
|
|
break;
|
|
case TLAN_TIMER_PHY_RESET:
|
|
TLan_PhyReset( dev );
|
|
break;
|
|
case TLAN_TIMER_PHY_START_LINK:
|
|
TLan_PhyStartLink( dev );
|
|
break;
|
|
case TLAN_TIMER_PHY_FINISH_AN:
|
|
TLan_PhyFinishAutoNeg( dev );
|
|
break;
|
|
case TLAN_TIMER_FINISH_RESET:
|
|
TLan_FinishReset( dev );
|
|
break;
|
|
case TLAN_TIMER_ACTIVITY:
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if ( priv->timer.function == NULL ) {
|
|
elapsed = jiffies - priv->timerSetAt;
|
|
if ( elapsed >= TLAN_TIMER_ACT_DELAY ) {
|
|
TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
|
|
} else {
|
|
priv->timer.function = &TLan_Timer;
|
|
priv->timer.expires = priv->timerSetAt + TLAN_TIMER_ACT_DELAY;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
add_timer( &priv->timer );
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
} /* TLan_Timer */
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
******************************************************************************
|
|
|
|
ThunderLAN Driver Adapter Related Routines
|
|
|
|
******************************************************************************
|
|
*****************************************************************************/
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_ResetLists
|
|
*
|
|
* 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_ResetLists( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
int i;
|
|
TLanList *list;
|
|
dma_addr_t list_phys;
|
|
struct sk_buff *skb;
|
|
void *t = NULL;
|
|
|
|
priv->txHead = 0;
|
|
priv->txTail = 0;
|
|
for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
|
|
list = priv->txList + i;
|
|
list->cStat = TLAN_CSTAT_UNUSED;
|
|
if ( bbuf ) {
|
|
list->buffer[0].address = priv->txBufferDMA + ( i * TLAN_MAX_FRAME_SIZE );
|
|
} else {
|
|
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->rxHead = 0;
|
|
priv->rxTail = TLAN_NUM_RX_LISTS - 1;
|
|
for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
|
|
list = priv->rxList + i;
|
|
list_phys = priv->rxListDMA + sizeof(TLanList) * i;
|
|
list->cStat = TLAN_CSTAT_READY;
|
|
list->frameSize = TLAN_MAX_FRAME_SIZE;
|
|
list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
|
|
if ( bbuf ) {
|
|
list->buffer[0].address = priv->rxBufferDMA + ( i * TLAN_MAX_FRAME_SIZE );
|
|
} else {
|
|
skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 );
|
|
if ( skb == NULL ) {
|
|
printk( "TLAN: Couldn't allocate memory for received data.\n" );
|
|
/* If this ever happened it would be a problem */
|
|
} else {
|
|
skb->dev = dev;
|
|
skb_reserve( skb, 2 );
|
|
t = (void *) skb_put( skb, TLAN_MAX_FRAME_SIZE );
|
|
}
|
|
list->buffer[0].address = pci_map_single(priv->pciDev, t, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
|
|
list->buffer[8].address = (u32) t;
|
|
TLan_StoreSKB(list, skb);
|
|
}
|
|
list->buffer[1].count = 0;
|
|
list->buffer[1].address = 0;
|
|
if ( i < TLAN_NUM_RX_LISTS - 1 )
|
|
list->forward = list_phys + sizeof(TLanList);
|
|
else
|
|
list->forward = 0;
|
|
}
|
|
|
|
} /* TLan_ResetLists */
|
|
|
|
|
|
static void TLan_FreeLists( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
int i;
|
|
TLanList *list;
|
|
struct sk_buff *skb;
|
|
|
|
if ( ! bbuf ) {
|
|
for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
|
|
list = priv->txList + i;
|
|
skb = TLan_GetSKB(list);
|
|
if ( skb ) {
|
|
pci_unmap_single(priv->pciDev, list->buffer[0].address, skb->len, 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->rxList + i;
|
|
skb = TLan_GetSKB(list);
|
|
if ( skb ) {
|
|
pci_unmap_single(priv->pciDev, 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_FreeLists */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_PrintDio
|
|
*
|
|
* 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_PrintDio( u16 io_base )
|
|
{
|
|
u32 data0, data1;
|
|
int i;
|
|
|
|
printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n", io_base );
|
|
printk( "TLAN: Off. +0 +4\n" );
|
|
for ( i = 0; i < 0x4C; i+= 8 ) {
|
|
data0 = TLan_DioRead32( io_base, i );
|
|
data1 = TLan_DioRead32( io_base, i + 0x4 );
|
|
printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 );
|
|
}
|
|
|
|
} /* TLan_PrintDio */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_PrintList
|
|
*
|
|
* Returns:
|
|
* Nothing
|
|
* Parms:
|
|
* list A pointer to the TLanList 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_PrintList( TLanList *list, char *type, int num)
|
|
{
|
|
int i;
|
|
|
|
printk( "TLAN: %s List %d at 0x%08x\n", type, num, (u32) list );
|
|
printk( "TLAN: Forward = 0x%08x\n", list->forward );
|
|
printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat );
|
|
printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize );
|
|
/* for ( i = 0; i < 10; i++ ) { */
|
|
for ( i = 0; i < 2; i++ ) {
|
|
printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", i, list->buffer[i].count, list->buffer[i].address );
|
|
}
|
|
|
|
} /* TLan_PrintList */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_ReadAndClearStats
|
|
*
|
|
* 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_ReadAndClearStats( struct net_device *dev, int record )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
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 ) {
|
|
priv->stats.rx_packets += rx_good;
|
|
priv->stats.rx_errors += rx_over + crc + code;
|
|
priv->stats.tx_packets += tx_good;
|
|
priv->stats.tx_errors += tx_under + loss;
|
|
priv->stats.collisions += multi_col + single_col + excess_col + late_col;
|
|
|
|
priv->stats.rx_over_errors += rx_over;
|
|
priv->stats.rx_crc_errors += crc;
|
|
priv->stats.rx_frame_errors += code;
|
|
|
|
priv->stats.tx_aborted_errors += tx_under;
|
|
priv->stats.tx_carrier_errors += loss;
|
|
}
|
|
|
|
} /* TLan_ReadAndClearStats */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* 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_ResetAdapter( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
int i;
|
|
u32 addr;
|
|
u32 data;
|
|
u8 data8;
|
|
|
|
priv->tlanFullDuplex = FALSE;
|
|
priv->phyOnline=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_DioWrite32( 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_DioWrite16( 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_SetBit( TLAN_NET_SIO_NMRST, addr );
|
|
|
|
/* 7. Setup the remaining registers. */
|
|
|
|
if ( priv->tlanRev >= 0x30 ) {
|
|
data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
|
|
TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 );
|
|
}
|
|
TLan_PhyDetect( 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_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a );
|
|
} else if ( priv->duplex == TLAN_DUPLEX_FULL ) {
|
|
TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 );
|
|
priv->tlanFullDuplex = TRUE;
|
|
} else {
|
|
TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 );
|
|
}
|
|
}
|
|
|
|
if ( priv->phyNum == 0 ) {
|
|
data |= TLAN_NET_CFG_PHY_EN;
|
|
}
|
|
TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
|
|
|
|
if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
|
|
TLan_FinishReset( dev );
|
|
} else {
|
|
TLan_PhyPowerDown( dev );
|
|
}
|
|
|
|
} /* TLan_ResetAdapter */
|
|
|
|
|
|
|
|
|
|
static void
|
|
TLan_FinishReset( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *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->phyNum];
|
|
|
|
data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
|
|
if ( priv->tlanFullDuplex ) {
|
|
data |= TLAN_NET_CMD_DUPLEX;
|
|
}
|
|
TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data );
|
|
data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
|
|
if ( priv->phyNum == 0 ) {
|
|
data |= TLAN_NET_MASK_MASK7;
|
|
}
|
|
TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data );
|
|
TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 );
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 );
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 );
|
|
|
|
if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || ( priv->aui ) ) {
|
|
status = MII_GS_LINK;
|
|
printk( "TLAN: %s: Link forced.\n", dev->name );
|
|
} else {
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
|
|
udelay( 1000 );
|
|
TLan_MiiReadReg( 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_MiiReadReg( dev, phy, MII_AN_LPA, &partner );
|
|
TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par );
|
|
|
|
printk( "TLAN: %s: Link active with ", dev->name );
|
|
if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) {
|
|
printk( "forced 10%sMbps %s-Duplex\n",
|
|
tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
|
|
tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
|
|
} else {
|
|
printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n",
|
|
tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
|
|
tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
|
|
printk("TLAN: Partner capability: ");
|
|
for (i = 5; i <= 10; i++)
|
|
if (partner & (1<<i))
|
|
printk("%s",media[i-5]);
|
|
printk("\n");
|
|
}
|
|
|
|
TLan_DioWrite8( 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_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT );
|
|
#endif
|
|
} else if (status & MII_GS_LINK) {
|
|
printk( "TLAN: %s: Link active\n", dev->name );
|
|
TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
|
|
}
|
|
}
|
|
|
|
if ( priv->phyNum == 0 ) {
|
|
TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
|
|
tlphy_ctl |= TLAN_TC_INTEN;
|
|
TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl );
|
|
sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO );
|
|
sio |= TLAN_NET_SIO_MINTEN;
|
|
TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio );
|
|
}
|
|
|
|
if ( status & MII_GS_LINK ) {
|
|
TLan_SetMac( dev, 0, dev->dev_addr );
|
|
priv->phyOnline = 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->rxListDMA, dev->base_addr + TLAN_CH_PARM );
|
|
outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD );
|
|
netif_carrier_on(dev);
|
|
} else {
|
|
printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n", dev->name );
|
|
TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET );
|
|
return;
|
|
}
|
|
TLan_SetMulticastList(dev);
|
|
|
|
} /* TLan_FinishReset */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_SetMac
|
|
*
|
|
* 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_SetMac( struct net_device *dev, int areg, char *mac )
|
|
{
|
|
int i;
|
|
|
|
areg *= 6;
|
|
|
|
if ( mac != NULL ) {
|
|
for ( i = 0; i < 6; i++ )
|
|
TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, mac[i] );
|
|
} else {
|
|
for ( i = 0; i < 6; i++ )
|
|
TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, 0 );
|
|
}
|
|
|
|
} /* TLan_SetMac */
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
******************************************************************************
|
|
|
|
ThunderLAN Driver PHY Layer Routines
|
|
|
|
******************************************************************************
|
|
*****************************************************************************/
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
* TLan_PhyPrint
|
|
*
|
|
* 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_PhyPrint( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 i, data0, data1, data2, data3, phy;
|
|
|
|
phy = priv->phy[priv->phyNum];
|
|
|
|
if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
|
|
printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name );
|
|
} else if ( phy <= TLAN_PHY_MAX_ADDR ) {
|
|
printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy );
|
|
printk( "TLAN: Off. +0 +1 +2 +3 \n" );
|
|
for ( i = 0; i < 0x20; i+= 4 ) {
|
|
printk( "TLAN: 0x%02x", i );
|
|
TLan_MiiReadReg( dev, phy, i, &data0 );
|
|
printk( " 0x%04hx", data0 );
|
|
TLan_MiiReadReg( dev, phy, i + 1, &data1 );
|
|
printk( " 0x%04hx", data1 );
|
|
TLan_MiiReadReg( dev, phy, i + 2, &data2 );
|
|
printk( " 0x%04hx", data2 );
|
|
TLan_MiiReadReg( dev, phy, i + 3, &data3 );
|
|
printk( " 0x%04hx\n", data3 );
|
|
}
|
|
} else {
|
|
printk( "TLAN: Device %s, Invalid PHY.\n", dev->name );
|
|
}
|
|
|
|
} /* TLan_PhyPrint */
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
* TLan_PhyDetect
|
|
*
|
|
* 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_PhyDetect( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 control;
|
|
u16 hi;
|
|
u16 lo;
|
|
u32 phy;
|
|
|
|
if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
|
|
priv->phyNum = 0xFFFF;
|
|
return;
|
|
}
|
|
|
|
TLan_MiiReadReg( 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_MiiReadReg( dev, phy, MII_GEN_CTL, &control );
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi );
|
|
TLan_MiiReadReg( 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->phyNum = 1;
|
|
} else if ( priv->phy[0] != TLAN_PHY_NONE ) {
|
|
priv->phyNum = 0;
|
|
} else {
|
|
printk( "TLAN: Cannot initialize device, no PHY was found!\n" );
|
|
}
|
|
|
|
} /* TLan_PhyDetect */
|
|
|
|
|
|
|
|
|
|
static void TLan_PhyPowerDown( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *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_MiiSync( dev->base_addr );
|
|
TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
|
|
if ( ( priv->phyNum == 0 ) && ( priv->phy[1] != TLAN_PHY_NONE ) && ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) {
|
|
TLan_MiiSync( dev->base_addr );
|
|
TLan_MiiWriteReg( 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_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP );
|
|
|
|
} /* TLan_PhyPowerDown */
|
|
|
|
|
|
|
|
|
|
static void TLan_PhyPowerUp( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 value;
|
|
|
|
TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name );
|
|
TLan_MiiSync( dev->base_addr );
|
|
value = MII_GC_LOOPBK;
|
|
TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
|
|
TLan_MiiSync(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_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET );
|
|
|
|
} /* TLan_PhyPowerUp */
|
|
|
|
|
|
|
|
|
|
static void TLan_PhyReset( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 phy;
|
|
u16 value;
|
|
|
|
phy = priv->phy[priv->phyNum];
|
|
|
|
TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name );
|
|
TLan_MiiSync( dev->base_addr );
|
|
value = MII_GC_LOOPBK | MII_GC_RESET;
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value );
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
|
|
while ( value & MII_GC_RESET ) {
|
|
TLan_MiiReadReg( 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_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK );
|
|
|
|
} /* TLan_PhyReset */
|
|
|
|
|
|
|
|
|
|
static void TLan_PhyStartLink( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 ability;
|
|
u16 control;
|
|
u16 data;
|
|
u16 phy;
|
|
u16 status;
|
|
u16 tctl;
|
|
|
|
phy = priv->phy[priv->phyNum];
|
|
TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name );
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
|
|
TLan_MiiReadReg( 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_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000);
|
|
} else if ( priv->speed == TLAN_SPEED_10 &&
|
|
priv->duplex == TLAN_DUPLEX_FULL) {
|
|
priv->tlanFullDuplex = TRUE;
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100);
|
|
} else if ( priv->speed == TLAN_SPEED_100 &&
|
|
priv->duplex == TLAN_DUPLEX_HALF) {
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000);
|
|
} else if ( priv->speed == TLAN_SPEED_100 &&
|
|
priv->duplex == TLAN_DUPLEX_FULL) {
|
|
priv->tlanFullDuplex = TRUE;
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100);
|
|
} else {
|
|
|
|
/* Set Auto-Neg advertisement */
|
|
TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1);
|
|
/* Enablee Auto-Neg */
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 );
|
|
/* Restart Auto-Neg */
|
|
TLan_MiiWriteReg( 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.
|
|
*/
|
|
printk( "TLAN: %s: Starting autonegotiation.\n", dev->name );
|
|
TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN );
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) {
|
|
priv->phyNum = 0;
|
|
data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
|
|
TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
|
|
TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN );
|
|
return;
|
|
} else if ( priv->phyNum == 0 ) {
|
|
control = 0;
|
|
TLan_MiiReadReg( 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->tlanFullDuplex = TRUE;
|
|
}
|
|
if ( priv->speed == TLAN_SPEED_100 ) {
|
|
control |= MII_GC_SPEEDSEL;
|
|
}
|
|
}
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control );
|
|
TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl );
|
|
}
|
|
|
|
/* Wait for 2 sec to give the transceiver time
|
|
* to establish link.
|
|
*/
|
|
TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET );
|
|
|
|
} /* TLan_PhyStartLink */
|
|
|
|
|
|
|
|
|
|
static void TLan_PhyFinishAutoNeg( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 an_adv;
|
|
u16 an_lpa;
|
|
u16 data;
|
|
u16 mode;
|
|
u16 phy;
|
|
u16 status;
|
|
|
|
phy = priv->phy[priv->phyNum];
|
|
|
|
TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
|
|
udelay( 1000 );
|
|
TLan_MiiReadReg( 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++) {
|
|
printk(KERN_INFO "TLAN: Giving autonegotiation more time.\n");
|
|
printk(KERN_INFO "TLAN: Please check that your adapter has\n");
|
|
printk(KERN_INFO "TLAN: been properly connected to a HUB or Switch.\n");
|
|
printk(KERN_INFO "TLAN: Trying to establish link in the background...\n");
|
|
}
|
|
TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN );
|
|
return;
|
|
}
|
|
|
|
printk( "TLAN: %s: Autonegotiation complete.\n", dev->name );
|
|
TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv );
|
|
TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa );
|
|
mode = an_adv & an_lpa & 0x03E0;
|
|
if ( mode & 0x0100 ) {
|
|
priv->tlanFullDuplex = TRUE;
|
|
} else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) {
|
|
priv->tlanFullDuplex = TRUE;
|
|
}
|
|
|
|
if ( ( ! ( mode & 0x0180 ) ) && ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && ( priv->phyNum != 0 ) ) {
|
|
priv->phyNum = 0;
|
|
data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
|
|
TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
|
|
TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN );
|
|
return;
|
|
}
|
|
|
|
if ( priv->phyNum == 0 ) {
|
|
if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || ( an_adv & an_lpa & 0x0040 ) ) {
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB | MII_GC_DUPLEX );
|
|
printk( "TLAN: Starting internal PHY with FULL-DUPLEX\n" );
|
|
} else {
|
|
TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB );
|
|
printk( "TLAN: Starting internal PHY with HALF-DUPLEX\n" );
|
|
}
|
|
}
|
|
|
|
/* Wait for 100 ms. No reason in partiticular.
|
|
*/
|
|
TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET );
|
|
|
|
} /* TLan_PhyFinishAutoNeg */
|
|
|
|
#ifdef MONITOR
|
|
|
|
/*********************************************************************
|
|
*
|
|
* TLan_phyMonitor
|
|
*
|
|
* 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_PhyMonitor( struct net_device *dev )
|
|
{
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
u16 phy;
|
|
u16 phy_status;
|
|
|
|
phy = priv->phy[priv->phyNum];
|
|
|
|
/* Get PHY status register */
|
|
TLan_MiiReadReg( 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_SetTimer( 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_SetTimer( 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_MiiReadReg
|
|
*
|
|
* Returns:
|
|
* 0 if ack received ok
|
|
* 1 otherwise.
|
|
*
|
|
* 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 int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val )
|
|
{
|
|
u8 nack;
|
|
u16 sio, tmp;
|
|
u32 i;
|
|
int err;
|
|
int minten;
|
|
TLanPrivateInfo *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_MiiSync(dev->base_addr);
|
|
|
|
minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
|
|
if ( minten )
|
|
TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio);
|
|
|
|
TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
|
|
TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */
|
|
TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
|
|
TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
|
|
|
|
|
|
TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */
|
|
|
|
TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */
|
|
TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
|
|
TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */
|
|
|
|
nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */
|
|
TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */
|
|
if (nack) { /* No ACK, so fake it */
|
|
for (i = 0; i < 16; i++) {
|
|
TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
|
|
TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
|
|
}
|
|
tmp = 0xffff;
|
|
err = TRUE;
|
|
} else { /* ACK, so read data */
|
|
for (tmp = 0, i = 0x8000; i; i >>= 1) {
|
|
TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
|
|
if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio))
|
|
tmp |= i;
|
|
TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
|
|
}
|
|
}
|
|
|
|
|
|
TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */
|
|
TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
|
|
|
|
if ( minten )
|
|
TLan_SetBit(TLAN_NET_SIO_MINTEN, sio);
|
|
|
|
*val = tmp;
|
|
|
|
if (!in_irq())
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
return err;
|
|
|
|
} /* TLan_MiiReadReg */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_MiiSendData
|
|
*
|
|
* 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_MiiSendData( 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_SetBit( TLAN_NET_SIO_MTXEN, sio );
|
|
|
|
for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) {
|
|
TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
|
|
(void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
|
|
if ( data & i )
|
|
TLan_SetBit( TLAN_NET_SIO_MDATA, sio );
|
|
else
|
|
TLan_ClearBit( TLAN_NET_SIO_MDATA, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
|
|
(void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
|
|
}
|
|
|
|
} /* TLan_MiiSendData */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* 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_MiiSync( 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_ClearBit( TLAN_NET_SIO_MTXEN, sio );
|
|
for ( i = 0; i < 32; i++ ) {
|
|
TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
|
|
}
|
|
|
|
} /* TLan_MiiSync */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_MiiWriteReg
|
|
*
|
|
* 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_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val )
|
|
{
|
|
u16 sio;
|
|
int minten;
|
|
unsigned long flags = 0;
|
|
TLanPrivateInfo *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_MiiSync( dev->base_addr );
|
|
|
|
minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
|
|
if ( minten )
|
|
TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio );
|
|
|
|
TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
|
|
TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */
|
|
TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
|
|
TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
|
|
|
|
TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */
|
|
TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */
|
|
|
|
TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */
|
|
TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
|
|
|
|
if ( minten )
|
|
TLan_SetBit( TLAN_NET_SIO_MINTEN, sio );
|
|
|
|
if (!in_irq())
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
} /* TLan_MiiWriteReg */
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
******************************************************************************
|
|
|
|
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_EeSendStart
|
|
*
|
|
* 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_EeSendStart( u16 io_base )
|
|
{
|
|
u16 sio;
|
|
|
|
outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
|
|
sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
|
|
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
|
|
|
|
} /* TLan_EeSendStart */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_EeSendByte
|
|
*
|
|
* 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_EeSendByte( 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_SetBit( TLAN_NET_SIO_EDATA, sio );
|
|
else
|
|
TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
|
|
}
|
|
TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
|
|
|
|
if ( ( ! err ) && stop ) {
|
|
TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
|
|
}
|
|
|
|
return ( err );
|
|
|
|
} /* TLan_EeSendByte */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_EeReceiveByte
|
|
*
|
|
* 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_EeReceiveByte( 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_ClearBit( TLAN_NET_SIO_ETXEN, sio );
|
|
for ( place = 0x80; place; place >>= 1 ) {
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) )
|
|
*data |= place;
|
|
TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
|
|
}
|
|
|
|
TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
|
|
if ( ! stop ) {
|
|
TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
|
|
} else {
|
|
TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
|
|
TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
|
|
TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
|
|
}
|
|
|
|
} /* TLan_EeReceiveByte */
|
|
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* TLan_EeReadByte
|
|
*
|
|
* 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_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data )
|
|
{
|
|
int err;
|
|
TLanPrivateInfo *priv = netdev_priv(dev);
|
|
unsigned long flags = 0;
|
|
int ret=0;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
TLan_EeSendStart( dev->base_addr );
|
|
err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK );
|
|
if (err)
|
|
{
|
|
ret=1;
|
|
goto fail;
|
|
}
|
|
err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK );
|
|
if (err)
|
|
{
|
|
ret=2;
|
|
goto fail;
|
|
}
|
|
TLan_EeSendStart( dev->base_addr );
|
|
err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK );
|
|
if (err)
|
|
{
|
|
ret=3;
|
|
goto fail;
|
|
}
|
|
TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP );
|
|
fail:
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
return ret;
|
|
|
|
} /* TLan_EeReadByte */
|
|
|
|
|
|
|