+++ /dev/null
-/*
- * 3c90x.c
- * NetWatch
- *
- * A ring buffer-based, bus-mastering Ethernet driver.
- *
- * Derived from Etherboot's 3c90x.c, which is
- * Copyright (C) 1999 LightSys Technology Services, Inc.
- * Portions Copyright (C) 1999 Steve Smith
- *
- * This program may be re-distributed in source or binary form, modified,
- * sold, or copied for any purpose, provided that the above copyright message
- * and this text are included with all source copies or derivative works, and
- * provided that the above copyright message and this text are included in the
- * documentation of any binary-only distributions. This program is distributed
- * WITHOUT ANY WARRANTY, without even the warranty of FITNESS FOR A PARTICULAR
- * PURPOSE or MERCHANTABILITY. Please read the associated documentation
- * "3c90x.txt" before compiling and using this driver.
- *
- * REVISION HISTORY:
- *
- * v0.10 1-26-1998 GRB Initial implementation.
- * v0.90 1-27-1998 GRB System works.
- * v1.00pre1 2-11-1998 GRB Got prom boot issue fixed.
- * v2.0 9-24-1999 SCS Modified for 3c905 (from 3c905b code)
- * Re-wrote poll and transmit for
- * better error recovery and heavy
- * network traffic operation
- * v2.01 5-26-2003 NN Fixed driver alignment issue which
- * caused system lockups if driver structures
- * not 8-byte aligned.
- * NetWatch0 12-07-2008 JAW Taken out back and shot.
- *
- */
-
-#include "etherboot-compat.h"
-#include "net.h"
-#include <timer.h>
-#include <io.h>
-#include <pci.h>
-#include <pci-bother.h>
-#include <minilib.h>
-#include <output.h>
-#include <paging.h>
-
-#define XCVR_MAGIC (0x5A00)
-
-/*** Register definitions for the 3c905 ***/
-enum Registers
- {
- regPowerMgmtCtrl_w = 0x7c, /** 905B Revision Only **/
- regUpMaxBurst_w = 0x7a, /** 905B Revision Only **/
- regDnMaxBurst_w = 0x78, /** 905B Revision Only **/
- regDebugControl_w = 0x74, /** 905B Revision Only **/
- regDebugData_l = 0x70, /** 905B Revision Only **/
- regRealTimeCnt_l = 0x40, /** Universal **/
- regUpBurstThresh_b = 0x3e, /** 905B Revision Only **/
- regUpPoll_b = 0x3d, /** 905B Revision Only **/
- regUpPriorityThresh_b = 0x3c, /** 905B Revision Only **/
- regUpListPtr_l = 0x38, /** Universal **/
- regCountdown_w = 0x36, /** Universal **/
- regFreeTimer_w = 0x34, /** Universal **/
- regUpPktStatus_l = 0x30, /** Universal with Exception, pg 130 **/
- regTxFreeThresh_b = 0x2f, /** 90X Revision Only **/
- regDnPoll_b = 0x2d, /** 905B Revision Only **/
- regDnPriorityThresh_b = 0x2c, /** 905B Revision Only **/
- regDnBurstThresh_b = 0x2a, /** 905B Revision Only **/
- regDnListPtr_l = 0x24, /** Universal with Exception, pg 107 **/
- regDmaCtrl_l = 0x20, /** Universal with Exception, pg 106 **/
- /** **/
- regIntStatusAuto_w = 0x1e, /** 905B Revision Only **/
- regTxStatus_b = 0x1b, /** Universal with Exception, pg 113 **/
- regTimer_b = 0x1a, /** Universal **/
- regTxPktId_b = 0x18, /** 905B Revision Only **/
- regCommandIntStatus_w = 0x0e, /** Universal (Command Variations) **/
- };
-
-/** following are windowed registers **/
-enum Registers7
- {
- regPowerMgmtEvent_7_w = 0x0c, /** 905B Revision Only **/
- regVlanEtherType_7_w = 0x04, /** 905B Revision Only **/
- regVlanMask_7_w = 0x00, /** 905B Revision Only **/
- };
-
-enum Registers6
- {
- regBytesXmittedOk_6_w = 0x0c, /** Universal **/
- regBytesRcvdOk_6_w = 0x0a, /** Universal **/
- regUpperFramesOk_6_b = 0x09, /** Universal **/
- regFramesDeferred_6_b = 0x08, /** Universal **/
- regFramesRecdOk_6_b = 0x07, /** Universal with Exceptions, pg 142 **/
- regFramesXmittedOk_6_b = 0x06, /** Universal **/
- regRxOverruns_6_b = 0x05, /** Universal **/
- regLateCollisions_6_b = 0x04, /** Universal **/
- regSingleCollisions_6_b = 0x03, /** Universal **/
- regMultipleCollisions_6_b = 0x02, /** Universal **/
- regSqeErrors_6_b = 0x01, /** Universal **/
- regCarrierLost_6_b = 0x00, /** Universal **/
- };
-
-enum Registers5
- {
- regIndicationEnable_5_w = 0x0c, /** Universal **/
- regInterruptEnable_5_w = 0x0a, /** Universal **/
- regTxReclaimThresh_5_b = 0x09, /** 905B Revision Only **/
- regRxFilter_5_b = 0x08, /** Universal **/
- regRxEarlyThresh_5_w = 0x06, /** Universal **/
- regTxStartThresh_5_w = 0x00, /** Universal **/
- };
-
-enum Registers4
- {
- regUpperBytesOk_4_b = 0x0d, /** Universal **/
- regBadSSD_4_b = 0x0c, /** Universal **/
- regMediaStatus_4_w = 0x0a, /** Universal with Exceptions, pg 201 **/
- regPhysicalMgmt_4_w = 0x08, /** Universal **/
- regNetworkDiagnostic_4_w = 0x06, /** Universal with Exceptions, pg 203 **/
- regFifoDiagnostic_4_w = 0x04, /** Universal with Exceptions, pg 196 **/
- regVcoDiagnostic_4_w = 0x02, /** Undocumented? **/
- };
-
-enum Registers3
- {
- regTxFree_3_w = 0x0c, /** Universal **/
- regRxFree_3_w = 0x0a, /** Universal with Exceptions, pg 125 **/
- regResetMediaOptions_3_w = 0x08, /** Media Options on B Revision, **/
- /** Reset Options on Non-B Revision **/
- regMacControl_3_w = 0x06, /** Universal with Exceptions, pg 199 **/
- regMaxPktSize_3_w = 0x04, /** 905B Revision Only **/
- regInternalConfig_3_l = 0x00, /** Universal, different bit **/
- /** definitions, pg 59 **/
- };
-
-enum Registers2
- {
- regResetOptions_2_w = 0x0c, /** 905B Revision Only **/
- regStationMask_2_3w = 0x06, /** Universal with Exceptions, pg 127 **/
- regStationAddress_2_3w = 0x00, /** Universal with Exceptions, pg 127 **/
- };
-
-enum Registers1
- {
- regRxStatus_1_w = 0x0a, /** 90X Revision Only, Pg 126 **/
- };
-
-enum Registers0
- {
- regEepromData_0_w = 0x0c, /** Universal **/
- regEepromCommand_0_w = 0x0a, /** Universal **/
- regBiosRomData_0_b = 0x08, /** 905B Revision Only **/
- regBiosRomAddr_0_l = 0x04, /** 905B Revision Only **/
- };
-
-
-/*** The names for the eight register windows ***/
-enum Windows
- {
- winPowerVlan7 = 0x07,
- winStatistics6 = 0x06,
- winTxRxControl5 = 0x05,
- winDiagnostics4 = 0x04,
- winTxRxOptions3 = 0x03,
- winAddressing2 = 0x02,
- winUnused1 = 0x01,
- winEepromBios0 = 0x00,
- };
-
-
-/*** Command definitions for the 3c90X ***/
-enum Commands
- {
- cmdGlobalReset = 0x00, /** Universal with Exceptions, pg 151 **/
- cmdSelectRegisterWindow = 0x01, /** Universal **/
- cmdEnableDcConverter = 0x02, /** **/
- cmdRxDisable = 0x03, /** **/
- cmdRxEnable = 0x04, /** Universal **/
- cmdRxReset = 0x05, /** Universal **/
- cmdStallCtl = 0x06, /** Universal **/
- cmdTxEnable = 0x09, /** Universal **/
- cmdTxDisable = 0x0A, /** **/
- cmdTxReset = 0x0B, /** Universal **/
- cmdRequestInterrupt = 0x0C, /** **/
- cmdAcknowledgeInterrupt = 0x0D, /** Universal **/
- cmdSetInterruptEnable = 0x0E, /** Universal **/
- cmdSetIndicationEnable = 0x0F, /** Universal **/
- cmdSetRxFilter = 0x10, /** Universal **/
- cmdSetRxEarlyThresh = 0x11, /** **/
- cmdSetTxStartThresh = 0x13, /** **/
- cmdStatisticsEnable = 0x15, /** **/
- cmdStatisticsDisable = 0x16, /** **/
- cmdDisableDcConverter = 0x17, /** **/
- cmdSetTxReclaimThresh = 0x18, /** **/
- cmdSetHashFilterBit = 0x19, /** **/
- };
-
-
-/*** Values for int status register bitmask **/
-#define INT_INTERRUPTLATCH (1<<0)
-#define INT_HOSTERROR (1<<1)
-#define INT_TXCOMPLETE (1<<2)
-#define INT_RXCOMPLETE (1<<4)
-#define INT_RXEARLY (1<<5)
-#define INT_INTREQUESTED (1<<6)
-#define INT_UPDATESTATS (1<<7)
-#define INT_LINKEVENT (1<<8)
-#define INT_DNCOMPLETE (1<<9)
-#define INT_UPCOMPLETE (1<<10)
-#define INT_CMDINPROGRESS (1<<12)
-#define INT_WINDOWNUMBER (7<<13)
-
-/* These structures are all 64-bit aligned, as needed for bus-mastering I/O. */
-typedef struct {
- unsigned int addr;
- unsigned int len;
-} segment_t __attribute__ ((aligned(8)));
-
-typedef struct {
- unsigned int next;
- unsigned int hdr;
- segment_t segments[64 /* XXX magic */];
-} txdesc_t __attribute__ ((aligned(8)));
-
-/*** RX descriptor ***/
-typedef struct {
- unsigned int next;
- unsigned int status;
- segment_t segments[64];
-} rxdesc_t __attribute__ ((aligned(8)));
-
-typedef struct {
- struct nic nic;
- int is3c556;
- int isBrev;
- int curwnd;
- int ioaddr;
-} nic_3c90x_t;
-
-static nic_3c90x_t _nic;
-
-#define _inb(n,a) (inb((n)->ioaddr + (a)))
-#define _inw(n,a) (inw((n)->ioaddr + (a)))
-#define _inl(n,a) (inl((n)->ioaddr + (a)))
-
-#define _outb(n,a,d) (outb((n)->ioaddr + (a), (d)))
-#define _outw(n,a,d) (outw((n)->ioaddr + (a), (d)))
-#define _outl(n,a,d) (outl((n)->ioaddr + (a), (d)))
-
-
-static int _issue_command(nic_3c90x_t *nic, int cmd, int param)
-{
- _outw(nic, regCommandIntStatus_w, (cmd << 11) | param);
-
- while (_inw(nic, regCommandIntStatus_w) & INT_CMDINPROGRESS)
- ;
-
- return 0;
-}
-
-
-/*** a3c90x_internal_SetWindow: selects a register window set.
- ***/
-static int _set_window(nic_3c90x_t *nic, int window)
-{
- if (nic->curwnd == window)
- return 0;
-
- _issue_command(nic, cmdSelectRegisterWindow, window);
- nic->curwnd = window;
-
- return 0;
-}
-
-
-/*** _read_eeprom - read data from the serial eeprom.
- ***/
-static unsigned short
-_read_eeprom(nic_3c90x_t *nic, int address)
-{
- unsigned short val;
-
- /** Select correct window **/
- _set_window(nic, winEepromBios0);
-
- /** Make sure the eeprom isn't busy **/
- do
- {
- int i;
- for (i = 0; i < 165; i++)
- inb(0x80); /* wait 165 usec */
- }
- while(0x8000 & _inw(nic, regEepromCommand_0_w));
-
- /** Read the value. **/
- if (nic->is3c556)
- _outw(nic, regEepromCommand_0_w, address + 0x230);
- else
- _outw(nic, regEepromCommand_0_w, address + 0x80);
-
- do
- {
- int i;
- for (i = 0; i < 165; i++)
- inb(0x80); /* wait 165 usec */
- }
- while(0x8000 & _inw(nic, regEepromCommand_0_w));
- val = _inw(nic, regEepromData_0_w);
-
- return val;
-}
-
-
-#if 0
-/*** a3c90x_reset: exported function that resets the card to its default
- *** state. This is so the Linux driver can re-set the card up the way
- *** it wants to. If CFG_3C90X_PRESERVE_XCVR is defined, then the reset will
- *** not alter the selected transceiver that we used to download the boot
- *** image.
- ***/
-static void _reset(nic_3c90x_t *nic)
-{
- /** Send the reset command to the card **/
- outputf("3c90x: issuing RESET");
- _issue_command(nic, cmdGlobalReset, 0);
-
- /** global reset command resets station mask, non-B revision cards
- ** require explicit reset of values
- **/
- _set_window(nic, winAddressing2);
- _outw(nic, regStationMask_2_3w+0, 0);
- _outw(nic, regStationMask_2_3w+2, 0);
- _outw(nic, regStationMask_2_3w+4, 0);
-
- /** Issue transmit reset, wait for command completion **/
- _issue_command(nic, cmdTxReset, 0);
- if (!nic->isBrev)
- _outb(nic, regTxFreeThresh_b, 0x01);
- _issue_command(nic, cmdTxEnable, 0);
-
- /**
- ** reset of the receiver on B-revision cards re-negotiates the link
- ** takes several seconds (a computer eternity)
- **/
- if (nic->isBrev)
- _issue_command(nic, cmdRxReset, 0x04);
- else
- _issue_command(nic, cmdRxReset, 0x00);
- _issue_command(nic, cmdRxEnable, 0);
-
- _issue_command(nic, cmdSetInterruptEnable, 0);
- /** enable rxComplete and txComplete **/
- _issue_command(nic, cmdSetIndicationEnable, 0x0014);
- /** acknowledge any pending status flags **/
- _issue_command(nic, cmdAcknowledgeInterrupt, 0x661);
-
- return;
-}
-#endif
-
-/***************************** Transmit routines *****************************/
-
-#define XMIT_BUFS 8
-
-static txdesc_t txdescs[XMIT_BUFS];
-static struct pbuf *txpbufs[XMIT_BUFS] = {0,};
-
-/* txcons is the index into the ring buffer of the last packet that the
- * 3c90x was seen processing, or -1 if the 3c90x was idle.
- */
-static int txcons = -1;
-
-/* txprod is the index of the _next_ buffer that the driver will write into. */
-static int txprod = 0;
-
-/* _transmit adds a packet to the transmit ring buffer. If no space is
- * available in the buffer, then _transmit blocks until a packet has been
- * transmitted.
- */
-static void _transmit(struct nic *_nic, struct pbuf *p)
-{
- nic_3c90x_t *nic = (nic_3c90x_t *)_nic;
- unsigned char status;
- int len, n;
-
- /* Wait for there to be space. */
- if (txcons == txprod)
- {
- int i = 0;
-
- outputf("3c90x: txbuf full, waiting for space...");
- while (_inl(nic, regDnListPtr_l) != 0)
- i++;
- outputf("3c90x: took %d iters", i);
- }
-
- /* Stall the download engine so it doesn't bother us. */
- _issue_command(nic, cmdStallCtl, 2 /* Stall download */);
-
- /* Clean up old txcons. */
- if (txcons != -1)
- {
- unsigned long curp = _inl(nic, regDnListPtr_l);
- int end;
-
- if (curp == 0)
- end = txprod;
- else
- end = (curp - v2p(txdescs)) / sizeof(txdescs[0]);
-
- while (txcons != end)
- {
- pbuf_free(txpbufs[txcons]);
- txpbufs[txcons] = NULL;
- txdescs[txcons].hdr = 0;
- txdescs[txcons].next = 0;
- txcons = (txcons + 1) % XMIT_BUFS;
- }
- if (txcons == txprod)
- txcons = -1;
- }
-
- /* Look at the TX status */
- status = _inb(nic, regTxStatus_b);
- if (status)
- {
- outputf("3c90x: error: the nus.");
- _outb(nic, regTxStatus_b, 0x00);
- }
-
- /* Set up the new txdesc. */
- txdescs[txprod].next = 0;
- len = 0;
- n = 0;
- txpbufs[txprod] = p;
- pbuf_ref(p);
- for (; p; p = p->next)
- {
- txdescs[txprod].segments[n].addr = v2p(p->payload);
- txdescs[txprod].segments[n].len = p->len | (p->next ? 0 : (1 << 31));
- len += p->len;
- n++;
- }
- txdescs[txprod].hdr = len; /* If we wanted completion notification, bit 15 */
-
- /* Now link the new one in, after it's been set up. */
- txdescs[(txprod + XMIT_BUFS - 1) % XMIT_BUFS].next = v2p(&(txdescs[txprod]));
-
- /* If the card is stopped, start it up again. */
- if (_inl(nic, regDnListPtr_l) == 0)
- {
- _outl(nic, regDnListPtr_l, v2p(&(txdescs[txprod])));
- txcons = txprod;
- }
-
- txprod = (txprod + 1) % XMIT_BUFS;
-
- /* And let it proceed on its way. */
- _issue_command(nic, cmdStallCtl, 3 /* Unstall download */);
-
-#if 0
- /** successful completion (sans "interrupt Requested" bit) **/
- if ((status & 0xbf) == 0x80)
- return;
-
- outputf("3c90x: Status (%hhX)", status);
- /** check error codes **/
- if (status & 0x02)
- {
- outputf("3c90x: Tx Reclaim Error (%hhX)", status);
- _reset(nic);
- } else if (status & 0x04) {
- outputf("3c90x: Tx Status Overflow (%hhX)", status);
- for (i=0; i<32; i++)
- _outb(nic, regTxStatus_b, 0x00);
- /** must re-enable after max collisions before re-issuing tx **/
- _issue_command(nic, cmdTxEnable, 0);
- } else if (status & 0x08) {
- outputf("3c90x: Tx Max Collisions (%hhX)", status);
- /** must re-enable after max collisions before re-issuing tx **/
- _issue_command(nic, cmdTxEnable, 0);
- } else if (status & 0x10) {
- outputf("3c90x: Tx Underrun (%hhX)", status);
- _reset(nic);
- } else if (status & 0x20) {
- outputf("3c90x: Tx Jabber (%hhX)", status);
- _reset(nic);
- } else if ((status & 0x80) != 0x80) {
- outputf("3c90x: Internal Error - Incomplete Transmission (%hhX)", status);
- _reset(nic);
- }
-#endif
-}
-
-/***************************** Receive routines *****************************/
-#define MAX_RECV_SIZE 1536
-#define RECV_BUFS 32
-
-static rxdesc_t rxdescs[RECV_BUFS];
-static struct pbuf *rxpbufs[RECV_BUFS] = {0,};
-
-/* rxcons is the pointer to the receive descriptor that the ethernet card will
- * write into next.
- */
-static int rxcons = 0;
-
-/* rxprod is the pointer to the receive descriptor that the driver will
- * allocate next.
- */
-static int rxprod = 0;
-
-/* _recv_prepare fills the 3c90x's ring buffer with fresh pbufs from lwIP.
- * The upload engine need not be stalled.
- */
-static void _recv_prepare(nic_3c90x_t *nic)
-{
- int oldprod;
-
- oldprod = rxprod;
- while ((rxprod != rxcons) || !rxpbufs[rxprod])
- {
- int i;
- struct pbuf *p;
-
- if (!rxpbufs[rxprod])
- rxpbufs[rxprod] = p = pbuf_alloc(PBUF_RAW, MAX_RECV_SIZE, PBUF_POOL);
- else {
- outputf("WARNING: 3c90x has pbuf in slot %d", rxprod);
- p = rxpbufs[rxprod];
- }
-
- if (!p)
- {
- outputf("3c90x: out of memory for rx pbuf?");
- break;
- }
-
- rxdescs[rxprod].status = 0;
- rxdescs[rxprod].next = 0;
- for (i = 0; p; p = p->next, i++)
- {
- rxdescs[rxprod].segments[i].addr = v2p(p->payload);
- rxdescs[rxprod].segments[i].len = p->len | (p->next ? 0 : (1 << 31));
- }
-
- /* Hook in the new one after and only after it's been fully set up. */
- rxdescs[(rxprod + RECV_BUFS - 1) % RECV_BUFS].next = v2p(&(rxdescs[rxprod]));
- rxprod = (rxprod + 1) % RECV_BUFS;
- }
-
- if (_inl(nic, regUpListPtr_l) == 0 && rxpbufs[oldprod]) /* Ran out of shit, and got new shit? */
- {
- _outl(nic, regUpListPtr_l, v2p(&rxdescs[oldprod]));
- outputf("3c90x: WARNING: Ran out of rx slots");
- }
-
- _issue_command(nic, cmdStallCtl, 1 /* Unstall upload */);
-}
-
-/* _recv polls the ring buffer to see if any packets are available. If any
- * are, then eth_recv is called for each available. _recv returns how many
- * packets it received successfully. Whether _recv got any packets or not,
- * _recv does not block, and reinitializes the ring buffer with fresh pbufs.
- */
-static int _recv(struct nic *_nic)
-{
- nic_3c90x_t *nic = (nic_3c90x_t *)_nic;
- int errcode, n = 0;
- struct pbuf *p;
-
- /* Nothing to do? */
- while ((rxdescs[rxcons].status & ((1<<14) | (1<<15))) != 0)
- {
- /** Check for Error (else we have good packet) **/
- if (rxdescs[rxcons].status & (1<<14))
- {
- errcode = rxdescs[rxcons].status;
- if (errcode & (1<<16))
- outputf("3C90X: Rx Overrun (%hX)",errcode>>16);
- else if (errcode & (1<<17))
- outputf("3C90X: Runt Frame (%hX)",errcode>>16);
- else if (errcode & (1<<18))
- outputf("3C90X: Alignment Error (%hX)",errcode>>16);
- else if (errcode & (1<<19))
- outputf("3C90X: CRC Error (%hX)",errcode>>16);
- else if (errcode & (1<<20))
- outputf("3C90X: Oversized Frame (%hX)",errcode>>16);
- else
- outputf("3C90X: Packet error (%hX)",errcode>>16);
-
- p = NULL;
- pbuf_free(rxpbufs[rxcons]); /* Bounce the old one before setting it up again. */
- } else {
- p = rxpbufs[rxcons];
- pbuf_realloc(p, rxdescs[rxcons].status & 0x1FFF); /* Resize the packet to how large it actually is. */
- }
-
- rxpbufs[rxcons] = NULL;
- rxdescs[rxcons].status = 0;
- rxcons = (rxcons + 1) % RECV_BUFS;
-
- if (p)
- {
- eth_recv(_nic, p);
- n++;
- }
- }
-
- _recv_prepare(nic); /* Light the NIC up again. */
- return n;
-}
-
-/*** a3c90x_probe: exported routine to probe for the 3c905 card and perform
- *** initialization. If this routine is called, the pci functions did find the
- *** card. We just have to init it here.
- ***/
-static int _probe(struct pci_dev *pci, void *data)
-{
- nic_3c90x_t *nic = &_nic;
- int i, c;
- unsigned short eeprom[0x100];
- unsigned int cfg;
- unsigned int mopt;
- unsigned int mstat;
- unsigned short linktype;
-#define HWADDR_OFFSET 10
-
- unsigned long ioaddr = 0;
- for (i = 0; i < 6; i++)
- if (pci->bars[i].type == PCI_BAR_IO)
- {
- ioaddr = pci->bars[i].addr;
- break;
- }
-
- if (ioaddr == 0)
- {
- outputf("3c90x: Unable to find I/O address");
- return 0;
- }
-
- /* Power it on */
- pci_write16(pci->bus, pci->dev, pci->fn, 0xE0,
- pci_read16(pci->bus, pci->dev, pci->fn, 0xE0) & ~0x3);
-
- outputf("3c90x: Picked I/O address %04x", ioaddr);
- pci_bother_add(pci);
- nic->nic.ioaddr = ioaddr & ~3;
- nic->nic.irqno = 0;
-
- nic->ioaddr = ioaddr;
- nic->is3c556 = (pci->did == 0x6055);
- nic->curwnd = 255;
- switch (_read_eeprom(nic, 0x03))
- {
- case 0x9000: /** 10 Base TPO **/
- case 0x9001: /** 10/100 T4 **/
- case 0x9050: /** 10/100 TPO **/
- case 0x9051: /** 10 Base Combo **/
- nic->isBrev = 0;
- break;
-
- case 0x9004: /** 10 Base TPO **/
- case 0x9005: /** 10 Base Combo **/
- case 0x9006: /** 10 Base TPO and Base2 **/
- case 0x900A: /** 10 Base FL **/
- case 0x9055: /** 10/100 TPO **/
- case 0x9056: /** 10/100 T4 **/
- case 0x905A: /** 10 Base FX **/
- default:
- nic->isBrev = 1;
- break;
- }
-
- /** Load the EEPROM contents **/
- if (nic->isBrev)
- for(i=0;i<=0x20;i++)
- eeprom[i] = _read_eeprom(nic, i);
- else
- for(i=0;i<=0x17;i++)
- eeprom[i] = _read_eeprom(nic, i);
-
- /** Retrieve the Hardware address and print it on the screen. **/
- nic->nic.hwaddr[0] = eeprom[HWADDR_OFFSET + 0]>>8;
- nic->nic.hwaddr[1] = eeprom[HWADDR_OFFSET + 0]&0xFF;
- nic->nic.hwaddr[2] = eeprom[HWADDR_OFFSET + 1]>>8;
- nic->nic.hwaddr[3] = eeprom[HWADDR_OFFSET + 1]&0xFF;
- nic->nic.hwaddr[4] = eeprom[HWADDR_OFFSET + 2]>>8;
- nic->nic.hwaddr[5] = eeprom[HWADDR_OFFSET + 2]&0xFF;
- outputf("MAC Address = %02x:%02x:%02x:%02x:%02x:%02x",
- nic->nic.hwaddr[0], nic->nic.hwaddr[1],
- nic->nic.hwaddr[2], nic->nic.hwaddr[3],
- nic->nic.hwaddr[4], nic->nic.hwaddr[5]);
-
- /** 3C556: Invert MII power **/
- if (nic->is3c556) {
- _set_window(nic, winAddressing2);
- _outw(nic, regResetOptions_2_w,
- _inw(nic, regResetOptions_2_w) | 0x4000);
- }
-
- /* Test if the link is good; if not, bail out */
- _set_window(nic, winDiagnostics4);
- mstat = _inw(nic, regMediaStatus_4_w);
- if((mstat & (1<<11)) == 0) {
- outputf("3c90x: valid link not established");
- return 0;
- }
-
- /* Program the MAC address into the station address registers */
- _set_window(nic, winAddressing2);
- _outw(nic, regStationAddress_2_3w, htons(eeprom[HWADDR_OFFSET + 0]));
- _outw(nic, regStationAddress_2_3w+2, htons(eeprom[HWADDR_OFFSET + 1]));
- _outw(nic, regStationAddress_2_3w+4, htons(eeprom[HWADDR_OFFSET + 2]));
- _outw(nic, regStationMask_2_3w+0, 0);
- _outw(nic, regStationMask_2_3w+2, 0);
- _outw(nic, regStationMask_2_3w+4, 0);
-
- /** Read the media options register, print a message and set default
- ** xcvr.
- **
- ** Uses Media Option command on B revision, Reset Option on non-B
- ** revision cards -- same register address
- **/
- _set_window(nic, winTxRxOptions3);
- mopt = _inw(nic, regResetMediaOptions_3_w);
-
- /** mask out VCO bit that is defined as 10baseFL bit on B-rev cards **/
- if (!nic->isBrev)
- mopt &= 0x7F;
-
- outputf("3c90x: connectors present: ");
- c = 0;
- linktype = 0x0008;
- if (mopt & 0x01)
- {
- outputf(" 100Base-T4");
- linktype = 0x0006;
- }
- if (mopt & 0x04)
- {
- outputf(" 100Base-FX");
- linktype = 0x0005;
- }
- if (mopt & 0x10)
- {
- outputf(" 10Base-2");
- linktype = 0x0003;
- }
- if (mopt & 0x20)
- {
- outputf(" AUI");
- linktype = 0x0001;
- }
- if (mopt & 0x40)
- {
- outputf(" MII");
- linktype = 0x0006;
- }
- if ((mopt & 0xA) == 0xA)
- {
- outputf(" 10Base-T / 100Base-TX");
- linktype = 0x0008;
- } else if ((mopt & 0xA) == 0x2) {
- outputf(" 100Base-TX");
- linktype = 0x0008;
- } else if ((mopt & 0xA) == 0x8) {
- outputf(" 10Base-T");
- linktype = 0x0008;
- }
-
- /** Determine transceiver type to use, depending on value stored in
- ** eeprom 0x16
- **/
- if (nic->isBrev && ((eeprom[0x16] & 0xFF00) == XCVR_MAGIC))
- linktype = eeprom[0x16] & 0x000F; /* User-defined */
- else if (linktype == 0x0009) {
- if (nic->isBrev)
- outputf("WARNING: MII External MAC Mode only supported on B-revision "
- "cards!!!!\nFalling Back to MII Mode\n");
- linktype = 0x0006;
- }
-
- /** enable DC converter for 10-Base-T **/
- if (linktype == 0x0003)
- _issue_command(nic, cmdEnableDcConverter, 0);
-
- /** Set the link to the type we just determined. **/
- _set_window(nic, winTxRxOptions3);
- cfg = _inl(nic, regInternalConfig_3_l);
- cfg &= ~(0xF<<20);
- cfg |= (linktype<<20);
- _outl(nic, regInternalConfig_3_l, cfg);
-
- /* Reset and turn on the transmit engine. */
- _issue_command(nic, cmdTxReset, 0);
- if (!nic->isBrev)
- _outb(nic, regTxFreeThresh_b, 0x01);
- _issue_command(nic, cmdTxEnable, 0);
-
- /* Reset and turn on the receive engine. */
- _issue_command(nic, cmdRxReset, nic->isBrev ? 0x04 : 0x00);
- _issue_command(nic, cmdSetRxFilter, 0x01 + 0x02 + 0x04); /* Individual, multicast, broadcast */
- _recv_prepare(nic); /* Set up the ring buffer... */
- _issue_command(nic, cmdRxEnable, 0); /* ... and light it up. */
-
- /* Turn on interrupts, and ack any that are hanging out. */
- _issue_command(nic, cmdSetInterruptEnable, 0);
- _issue_command(nic, cmdSetIndicationEnable, 0x0014);
- _issue_command(nic, cmdAcknowledgeInterrupt, 0x661);
-
- /* Register with lwIP. */
- nic->nic.recv = _recv;
- nic->nic.transmit = _transmit;
- eth_register(&(nic->nic));
-
- return 1;
-}
-
-static struct pci_id _pci_ids[] = {
- /* Original 90x revisions: */
- PCI_ROM(0x10b7, 0x6055, "3c556", "3C556"), /* Huricane */
- PCI_ROM(0x10b7, 0x9000, "3c905-tpo", "3Com900-TPO"), /* 10 Base TPO */
- PCI_ROM(0x10b7, 0x9001, "3c905-t4", "3Com900-Combo"), /* 10/100 T4 */
- PCI_ROM(0x10b7, 0x9050, "3c905-tpo100", "3Com905-TX"), /* 100 Base TX / 10/100 TPO */
- PCI_ROM(0x10b7, 0x9051, "3c905-combo", "3Com905-T4"), /* 100 Base T4 / 10 Base Combo */
- /* Newer 90xB revisions: */
- PCI_ROM(0x10b7, 0x9004, "3c905b-tpo", "3Com900B-TPO"), /* 10 Base TPO */
- PCI_ROM(0x10b7, 0x9005, "3c905b-combo", "3Com900B-Combo"), /* 10 Base Combo */
- PCI_ROM(0x10b7, 0x9006, "3c905b-tpb2", "3Com900B-2/T"), /* 10 Base TP and Base2 */
- PCI_ROM(0x10b7, 0x900a, "3c905b-fl", "3Com900B-FL"), /* 10 Base FL */
- PCI_ROM(0x10b7, 0x9055, "3c905b-tpo100", "3Com905B-TX"), /* 10/100 TPO */
- PCI_ROM(0x10b7, 0x9056, "3c905b-t4", "3Com905B-T4"), /* 10/100 T4 */
- PCI_ROM(0x10b7, 0x9058, "3c905b-9058", "3Com905B-9058"), /* Cyclone 10/100/BNC */
- PCI_ROM(0x10b7, 0x905a, "3c905b-fx", "3Com905B-FL"), /* 100 Base FX / 10 Base FX */
- /* Newer 90xC revision: */
- PCI_ROM(0x10b7, 0x9200, "3c905c-tpo", "3Com905C-TXM"), /* 10/100 TPO (3C905C-TXM) */
- PCI_ROM(0x10b7, 0x9202, "3c920b-emb-ati", "3c920B-EMB-WNM (ATI Radeon 9100 IGP)"), /* 3c920B-EMB-WNM (ATI Radeon 9100 IGP) */
- PCI_ROM(0x10b7, 0x9210, "3c920b-emb-wnm","3Com20B-EMB WNM"),
- PCI_ROM(0x10b7, 0x9800, "3c980", "3Com980-Cyclone"), /* Cyclone */
- PCI_ROM(0x10b7, 0x9805, "3c9805", "3Com9805"), /* Dual Port Server Cyclone */
- PCI_ROM(0x10b7, 0x7646, "3csoho100-tx", "3CSOHO100-TX"), /* Hurricane */
- PCI_ROM(0x10b7, 0x4500, "3c450", "3Com450 HomePNA Tornado"),
- PCI_ROM(0x10b7, 0x1201, "3c982a", "3Com982A"),
- PCI_ROM(0x10b7, 0x1202, "3c982b", "3Com982B"),
-};
-
-struct pci_driver a3c90x_driver = {
- .name = "3c90x",
- .probe = _probe,
- .ids = _pci_ids,
- .id_count = sizeof(_pci_ids)/sizeof(_pci_ids[0]),
-};
git.joshuawise.com / netwatch.git / blobdiff