436 lines
14 KiB
C
436 lines
14 KiB
C
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/*
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* Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2. The name
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* of the author may not be used to endorse or promote products derived from
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* this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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October 2, 1994
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Modified by: Andres Vega Garcia
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INRIA - Sophia Antipolis, France
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e-mail: avega@sophia.inria.fr
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finger: avega@pax.inria.fr
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*/
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/*
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* Created from if_epreg.h by Fred Gray (fgray@rice.edu) to support the
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* 3c590 family.
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*/
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/*
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* Modified by Shusuke Nisiyama <shu@athena.qe.eng.hokudai.ac.jp>
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* for etherboot
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* Mar. 14, 2000
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*/
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/*
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* Ethernet software status per interface.
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*/
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/*
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* Some global constants
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*/
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#define TX_INIT_RATE 16
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#define TX_INIT_MAX_RATE 64
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#define RX_INIT_LATENCY 64
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#define RX_INIT_EARLY_THRESH 64
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#define MIN_RX_EARLY_THRESHF 16 /* not less than ether_header */
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#define MIN_RX_EARLY_THRESHL 4
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#define EEPROMSIZE 0x40
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#define MAX_EEPROMBUSY 1000
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#define VX_LAST_TAG 0xd7
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#define VX_MAX_BOARDS 16
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#define VX_ID_PORT 0x100
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/*
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* some macros to acces long named fields
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*/
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#define BASE (EL_BASE_ADDR)
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/*
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* Commands to read/write EEPROM trough EEPROM command register (Window 0,
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* Offset 0xa)
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*/
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#define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */
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#define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */
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#define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
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#define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */
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#define EEPROM_BUSY (1<<15)
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/*
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* Some short functions, worth to let them be a macro
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*/
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/**************************************************************************
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* *
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* These define the EEPROM data structure. They are used in the probe
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* function to verify the existence of the adapter after having sent
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* the ID_Sequence.
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*
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* There are others but only the ones we use are defined here.
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*
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**************************************************************************/
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#define EEPROM_NODE_ADDR_0 0x0 /* Word */
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#define EEPROM_NODE_ADDR_1 0x1 /* Word */
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#define EEPROM_NODE_ADDR_2 0x2 /* Word */
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#define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */
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#define EEPROM_MFG_ID 0x7 /* 0x6d50 */
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#define EEPROM_ADDR_CFG 0x8 /* Base addr */
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#define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */
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#define EEPROM_OEM_ADDR_0 0xa /* Word */
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#define EEPROM_OEM_ADDR_1 0xb /* Word */
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#define EEPROM_OEM_ADDR_2 0xc /* Word */
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#define EEPROM_SOFT_INFO_2 0xf /* Software information 2 */
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#define NO_RX_OVN_ANOMALY (1<<5)
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/**************************************************************************
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* *
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* These are the registers for the 3Com 3c509 and their bit patterns when *
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* applicable. They have been taken out the the "EtherLink III Parallel *
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* Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual *
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* from 3com. *
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* *
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**************************************************************************/
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#define VX_COMMAND 0x0e /* Write. BASE+0x0e is always a
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* command reg. */
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#define VX_STATUS 0x0e /* Read. BASE+0x0e is always status
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* reg. */
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#define VX_WINDOW 0x0f /* Read. BASE+0x0f is always window
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* reg. */
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/*
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* Window 0 registers. Setup.
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*/
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/* Write */
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#define VX_W0_EEPROM_DATA 0x0c
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#define VX_W0_EEPROM_COMMAND 0x0a
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#define VX_W0_RESOURCE_CFG 0x08
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#define VX_W0_ADDRESS_CFG 0x06
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#define VX_W0_CONFIG_CTRL 0x04
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/* Read */
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#define VX_W0_PRODUCT_ID 0x02
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#define VX_W0_MFG_ID 0x00
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/*
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* Window 1 registers. Operating Set.
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*/
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/* Write */
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#define VX_W1_TX_PIO_WR_2 0x02
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#define VX_W1_TX_PIO_WR_1 0x00
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/* Read */
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#define VX_W1_FREE_TX 0x0c
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#define VX_W1_TX_STATUS 0x0b /* byte */
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#define VX_W1_TIMER 0x0a /* byte */
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#define VX_W1_RX_STATUS 0x08
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#define VX_W1_RX_PIO_RD_2 0x02
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#define VX_W1_RX_PIO_RD_1 0x00
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/*
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* Window 2 registers. Station Address Setup/Read
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*/
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/* Read/Write */
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#define VX_W2_ADDR_5 0x05
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#define VX_W2_ADDR_4 0x04
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#define VX_W2_ADDR_3 0x03
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#define VX_W2_ADDR_2 0x02
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#define VX_W2_ADDR_1 0x01
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#define VX_W2_ADDR_0 0x00
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/*
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* Window 3 registers. FIFO Management.
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*/
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/* Read */
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#define VX_W3_INTERNAL_CFG 0x00
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#define VX_W3_RESET_OPT 0x08
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#define VX_W3_FREE_TX 0x0c
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#define VX_W3_FREE_RX 0x0a
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/*
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* Window 4 registers. Diagnostics.
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*/
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/* Read/Write */
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#define VX_W4_MEDIA_TYPE 0x0a
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#define VX_W4_CTRLR_STATUS 0x08
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#define VX_W4_NET_DIAG 0x06
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#define VX_W4_FIFO_DIAG 0x04
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#define VX_W4_HOST_DIAG 0x02
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#define VX_W4_TX_DIAG 0x00
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/*
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* Window 5 Registers. Results and Internal status.
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*/
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/* Read */
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#define VX_W5_READ_0_MASK 0x0c
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#define VX_W5_INTR_MASK 0x0a
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#define VX_W5_RX_FILTER 0x08
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#define VX_W5_RX_EARLY_THRESH 0x06
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#define VX_W5_TX_AVAIL_THRESH 0x02
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#define VX_W5_TX_START_THRESH 0x00
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/*
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* Window 6 registers. Statistics.
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*/
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/* Read/Write */
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#define TX_TOTAL_OK 0x0c
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#define RX_TOTAL_OK 0x0a
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#define TX_DEFERRALS 0x08
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#define RX_FRAMES_OK 0x07
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#define TX_FRAMES_OK 0x06
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#define RX_OVERRUNS 0x05
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#define TX_COLLISIONS 0x04
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#define TX_AFTER_1_COLLISION 0x03
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#define TX_AFTER_X_COLLISIONS 0x02
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#define TX_NO_SQE 0x01
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#define TX_CD_LOST 0x00
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/****************************************
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*
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* Register definitions.
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*
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****************************************/
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/*
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* Command register. All windows.
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*
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* 16 bit register.
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* 15-11: 5-bit code for command to be executed.
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* 10-0: 11-bit arg if any. For commands with no args;
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* this can be set to anything.
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*/
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#define GLOBAL_RESET (unsigned short) 0x0000 /* Wait at least 1ms
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* after issuing */
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#define WINDOW_SELECT (unsigned short) (0x1<<11)
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#define START_TRANSCEIVER (unsigned short) (0x2<<11) /* Read ADDR_CFG reg to
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* determine whether
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* this is needed. If
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* so; wait 800 uSec
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* before using trans-
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* ceiver. */
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#define RX_DISABLE (unsigned short) (0x3<<11) /* state disabled on
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* power-up */
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#define RX_ENABLE (unsigned short) (0x4<<11)
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#define RX_RESET (unsigned short) (0x5<<11)
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#define RX_DISCARD_TOP_PACK (unsigned short) (0x8<<11)
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#define TX_ENABLE (unsigned short) (0x9<<11)
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#define TX_DISABLE (unsigned short) (0xa<<11)
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#define TX_RESET (unsigned short) (0xb<<11)
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#define REQ_INTR (unsigned short) (0xc<<11)
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/*
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* The following C_* acknowledge the various interrupts. Some of them don't
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* do anything. See the manual.
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*/
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#define ACK_INTR (unsigned short) (0x6800)
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# define C_INTR_LATCH (unsigned short) (ACK_INTR|0x1)
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# define C_CARD_FAILURE (unsigned short) (ACK_INTR|0x2)
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# define C_TX_COMPLETE (unsigned short) (ACK_INTR|0x4)
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# define C_TX_AVAIL (unsigned short) (ACK_INTR|0x8)
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# define C_RX_COMPLETE (unsigned short) (ACK_INTR|0x10)
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# define C_RX_EARLY (unsigned short) (ACK_INTR|0x20)
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# define C_INT_RQD (unsigned short) (ACK_INTR|0x40)
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# define C_UPD_STATS (unsigned short) (ACK_INTR|0x80)
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#define SET_INTR_MASK (unsigned short) (0xe<<11)
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#define SET_RD_0_MASK (unsigned short) (0xf<<11)
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#define SET_RX_FILTER (unsigned short) (0x10<<11)
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# define FIL_INDIVIDUAL (unsigned short) (0x1)
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# define FIL_MULTICAST (unsigned short) (0x02)
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# define FIL_BRDCST (unsigned short) (0x04)
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# define FIL_PROMISC (unsigned short) (0x08)
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#define SET_RX_EARLY_THRESH (unsigned short) (0x11<<11)
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#define SET_TX_AVAIL_THRESH (unsigned short) (0x12<<11)
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#define SET_TX_START_THRESH (unsigned short) (0x13<<11)
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#define STATS_ENABLE (unsigned short) (0x15<<11)
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#define STATS_DISABLE (unsigned short) (0x16<<11)
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#define STOP_TRANSCEIVER (unsigned short) (0x17<<11)
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/*
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* Status register. All windows.
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*
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* 15-13: Window number(0-7).
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* 12: Command_in_progress.
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* 11: reserved.
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* 10: reserved.
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* 9: reserved.
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* 8: reserved.
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* 7: Update Statistics.
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* 6: Interrupt Requested.
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* 5: RX Early.
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* 4: RX Complete.
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* 3: TX Available.
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* 2: TX Complete.
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* 1: Adapter Failure.
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* 0: Interrupt Latch.
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*/
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#define S_INTR_LATCH (unsigned short) (0x1)
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#define S_CARD_FAILURE (unsigned short) (0x2)
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#define S_TX_COMPLETE (unsigned short) (0x4)
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#define S_TX_AVAIL (unsigned short) (0x8)
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#define S_RX_COMPLETE (unsigned short) (0x10)
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#define S_RX_EARLY (unsigned short) (0x20)
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#define S_INT_RQD (unsigned short) (0x40)
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#define S_UPD_STATS (unsigned short) (0x80)
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#define S_COMMAND_IN_PROGRESS (unsigned short) (0x1000)
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#define VX_BUSY_WAIT while (inw(BASE + VX_STATUS) & S_COMMAND_IN_PROGRESS)
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/* Address Config. Register.
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* Window 0/Port 06
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*/
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#define ACF_CONNECTOR_BITS 14
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#define ACF_CONNECTOR_UTP 0
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#define ACF_CONNECTOR_AUI 1
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#define ACF_CONNECTOR_BNC 3
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#define INTERNAL_CONNECTOR_BITS 20
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#define INTERNAL_CONNECTOR_MASK 0x01700000
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/*
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* FIFO Registers. RX Status.
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*
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* 15: Incomplete or FIFO empty.
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* 14: 1: Error in RX Packet 0: Incomplete or no error.
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* 13-11: Type of error.
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* 1000 = Overrun.
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* 1011 = Run Packet Error.
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* 1100 = Alignment Error.
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* 1101 = CRC Error.
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* 1001 = Oversize Packet Error (>1514 bytes)
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* 0010 = Dribble Bits.
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* (all other error codes, no errors.)
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*
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* 10-0: RX Bytes (0-1514)
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*/
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#define ERR_INCOMPLETE (unsigned short) (0x8000)
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#define ERR_RX (unsigned short) (0x4000)
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#define ERR_MASK (unsigned short) (0x7800)
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#define ERR_OVERRUN (unsigned short) (0x4000)
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#define ERR_RUNT (unsigned short) (0x5800)
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#define ERR_ALIGNMENT (unsigned short) (0x6000)
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#define ERR_CRC (unsigned short) (0x6800)
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#define ERR_OVERSIZE (unsigned short) (0x4800)
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#define ERR_DRIBBLE (unsigned short) (0x1000)
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/*
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* TX Status.
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*
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* Reports the transmit status of a completed transmission. Writing this
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* register pops the transmit completion stack.
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*
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* Window 1/Port 0x0b.
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*
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* 7: Complete
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* 6: Interrupt on successful transmission requested.
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|
|
* 5: Jabber Error (TP Only, TX Reset required. )
|
||
|
|
* 4: Underrun (TX Reset required. )
|
||
|
|
* 3: Maximum Collisions.
|
||
|
|
* 2: TX Status Overflow.
|
||
|
|
* 1-0: Undefined.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#define TXS_COMPLETE 0x80
|
||
|
|
#define TXS_INTR_REQ 0x40
|
||
|
|
#define TXS_JABBER 0x20
|
||
|
|
#define TXS_UNDERRUN 0x10
|
||
|
|
#define TXS_MAX_COLLISION 0x8
|
||
|
|
#define TXS_STATUS_OVERFLOW 0x4
|
||
|
|
|
||
|
|
#define RS_AUI (1<<5)
|
||
|
|
#define RS_BNC (1<<4)
|
||
|
|
#define RS_UTP (1<<3)
|
||
|
|
#define RS_T4 (1<<0)
|
||
|
|
#define RS_TX (1<<1)
|
||
|
|
#define RS_FX (1<<2)
|
||
|
|
#define RS_MII (1<<6)
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FIFO Status (Window 4)
|
||
|
|
*
|
||
|
|
* Supports FIFO diagnostics
|
||
|
|
*
|
||
|
|
* Window 4/Port 0x04.1
|
||
|
|
*
|
||
|
|
* 15: 1=RX receiving (RO). Set when a packet is being received
|
||
|
|
* into the RX FIFO.
|
||
|
|
* 14: Reserved
|
||
|
|
* 13: 1=RX underrun (RO). Generates Adapter Failure interrupt.
|
||
|
|
* Requires RX Reset or Global Reset command to recover.
|
||
|
|
* It is generated when you read past the end of a packet -
|
||
|
|
* reading past what has been received so far will give bad
|
||
|
|
* data.
|
||
|
|
* 12: 1=RX status overrun (RO). Set when there are already 8
|
||
|
|
* packets in the RX FIFO. While this bit is set, no additional
|
||
|
|
* packets are received. Requires no action on the part of
|
||
|
|
* the host. The condition is cleared once a packet has been
|
||
|
|
* read out of the RX FIFO.
|
||
|
|
* 11: 1=RX overrun (RO). Set when the RX FIFO is full (there
|
||
|
|
* may not be an overrun packet yet). While this bit is set,
|
||
|
|
* no additional packets will be received (some additional
|
||
|
|
* bytes can still be pending between the wire and the RX
|
||
|
|
* FIFO). Requires no action on the part of the host. The
|
||
|
|
* condition is cleared once a few bytes have been read out
|
||
|
|
* from the RX FIFO.
|
||
|
|
* 10: 1=TX overrun (RO). Generates adapter failure interrupt.
|
||
|
|
* Requires TX Reset or Global Reset command to recover.
|
||
|
|
* Disables Transmitter.
|
||
|
|
* 9-8: Unassigned.
|
||
|
|
* 7-0: Built in self test bits for the RX and TX FIFO's.
|
||
|
|
*/
|
||
|
|
#define FIFOS_RX_RECEIVING (unsigned short) 0x8000
|
||
|
|
#define FIFOS_RX_UNDERRUN (unsigned short) 0x2000
|
||
|
|
#define FIFOS_RX_STATUS_OVERRUN (unsigned short) 0x1000
|
||
|
|
#define FIFOS_RX_OVERRUN (unsigned short) 0x0800
|
||
|
|
#define FIFOS_TX_OVERRUN (unsigned short) 0x0400
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Misc defines for various things.
|
||
|
|
*/
|
||
|
|
#define TAG_ADAPTER 0xd0
|
||
|
|
#define ACTIVATE_ADAPTER_TO_CONFIG 0xff
|
||
|
|
#define ENABLE_DRQ_IRQ 0x0001
|
||
|
|
#define MFG_ID 0x506d /* `TCM' */
|
||
|
|
#define PROD_ID 0x5090
|
||
|
|
#define GO_WINDOW(x) outw(WINDOW_SELECT|(x),BASE+VX_COMMAND)
|
||
|
|
#define JABBER_GUARD_ENABLE 0x40
|
||
|
|
#define LINKBEAT_ENABLE 0x80
|
||
|
|
#define ENABLE_UTP (JABBER_GUARD_ENABLE | LINKBEAT_ENABLE)
|
||
|
|
#define DISABLE_UTP 0x0
|
||
|
|
#define RX_BYTES_MASK (unsigned short) (0x07ff)
|
||
|
|
#define RX_ERROR 0x4000
|
||
|
|
#define RX_INCOMPLETE 0x8000
|
||
|
|
#define TX_INDICATE 1<<15
|
||
|
|
#define is_eeprom_busy(b) (inw((b)+VX_W0_EEPROM_COMMAND)&EEPROM_BUSY)
|
||
|
|
|
||
|
|
#define VX_IOSIZE 0x20
|
||
|
|
|
||
|
|
#define VX_CONNECTORS 8
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Local variables:
|
||
|
|
* c-basic-offset: 8
|
||
|
|
* End:
|
||
|
|
*/
|