X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/2c9b12c13a216fbaca15d3c0d4bf0b994950117f..789ebb2d04033053b3cfeaa73648e3a1c3b3d8f5:/net/3c90x.c?ds=sidebyside diff --git a/net/3c90x.c b/net/3c90x.c deleted file mode 100644 index 7b6a72e..0000000 --- a/net/3c90x.c +++ /dev/null @@ -1,852 +0,0 @@ -/* - * 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 -#include -#include -#include -#include -#include -#include - -#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; - 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; - pbuf_ref(p); - 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]), -};