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-rw-r--r--gpxe/src/drivers/net/3c90x.h302
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diff --git a/gpxe/src/drivers/net/3c90x.h b/gpxe/src/drivers/net/3c90x.h
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--- a/gpxe/src/drivers/net/3c90x.h
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-/*
- * 3c90x.c -- This file implements the 3c90x driver for etherboot. Written
- * by Greg Beeley, Greg.Beeley@LightSys.org. Modified by Steve Smith,
- * Steve.Smith@Juno.Com. Alignment bug fix Neil Newell (nn@icenoir.net).
- *
- * Port from etherboot to gPXE API, implementation of tx/rx ring support
- * by Thomas Miletich, thomas.miletich@gmail.com
- * Thanks to Marty Connor and Stefan Hajnoczi for their help and feedback.
- *
- * This program 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.
- *
- * --------
- *
- * Program written with the assistance of the 3com documentation for
- * the 3c905B-TX card, as well as with some assistance from the 3c59x
- * driver Donald Becker wrote for the Linux kernel, and with some assistance
- * from the remainder of the Etherboot distribution.
- *
- * 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.
- * v2.02 11-28-2007 GSt Got polling working again by replacing
- * "for(i=0;i<40000;i++);" with "mdelay(1);"
- *
- *
- * indent options: indent -kr -i8 3c90x.c
- */
-
-FILE_LICENCE ( BSD2 );
-
-#ifndef __3C90X_H_
-#define __3C90X_H_
-
-static struct net_device_operations a3c90x_operations;
-
-#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 {
- winNone = 0xff,
- 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, /* */
-};
-
-enum FrameStartHeader {
- fshTxIndicate = 0x8000,
- fshDnComplete = 0x10000,
-};
-
-enum UpDownDesc {
- upLastFrag = (1 << 31),
- downLastFrag = (1 << 31),
-};
-
-enum UpPktStatus {
- upComplete = (1 << 15),
- upError = (1 << 14),
-};
-
-enum Stalls {
- upStall = 0x00,
- upUnStall = 0x01,
-
- dnStall = 0x02,
- dnUnStall = 0x03,
-};
-
-enum Resources {
- resRxRing = 0x00,
- resTxRing = 0x02,
- resRxIOBuf = 0x04
-};
-
-enum eeprom {
- eepromBusy = (1 << 15),
- eepromRead = ((0x02) << 6),
- eepromRead_556 = 0x230,
- eepromHwAddrOffset = 0x0a,
-};
-
-/* Bit 4 is only used in revison B and upwards */
-enum linktype {
- link10BaseT = 0x00,
- linkAUI = 0x01,
- link10Base2 = 0x03,
- link100BaseFX = 0x05,
- linkMII = 0x06,
- linkAutoneg = 0x08,
- linkExternalMII = 0x09,
-};
-
-/* 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)
-
-/* Buffer sizes */
-#define TX_RING_SIZE 8
-#define RX_RING_SIZE 8
-#define TX_RING_ALIGN 16
-#define RX_RING_ALIGN 16
-#define RX_BUF_SIZE 1536
-
-/* Timeouts for eeprom and command completion */
-/* Timeout 1 second, to be save */
-#define EEPROM_TIMEOUT 1 * 1000 * 1000
-
-/* TX descriptor */
-struct TXD {
- volatile unsigned int DnNextPtr;
- volatile unsigned int FrameStartHeader;
- volatile unsigned int DataAddr;
- volatile unsigned int DataLength;
-} __attribute__ ((aligned(8))); /* 64-bit aligned for bus mastering */
-
-/* RX descriptor */
-struct RXD {
- volatile unsigned int UpNextPtr;
- volatile unsigned int UpPktStatus;
- volatile unsigned int DataAddr;
- volatile unsigned int DataLength;
-} __attribute__ ((aligned(8))); /* 64-bit aligned for bus mastering */
-
-/* Private NIC dats */
-struct INF_3C90X {
- unsigned int is3c556;
- unsigned char isBrev;
- unsigned char CurrentWindow;
- unsigned int IOAddr;
- unsigned short eeprom[0x21];
- unsigned int tx_cur; /* current entry in tx_ring */
- unsigned int tx_cnt; /* current number of used tx descriptors */
- unsigned int tx_tail; /* entry of last finished packet */
- unsigned int rx_cur;
- struct TXD *tx_ring;
- struct RXD *rx_ring;
- struct io_buffer *tx_iobuf[TX_RING_SIZE];
- struct io_buffer *rx_iobuf[RX_RING_SIZE];
- struct nvs_device nvs;
-};
-
-#endif
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