/*
* Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. 2. The name
* of the author may not be used to endorse or promote products derived from
* this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* if_epreg.h,v 1.4 1994/11/13 10:12:37 gibbs Exp Modified by:
*
October 2, 1994
Modified by: Andres Vega Garcia
INRIA - Sophia Antipolis, France
e-mail: avega@sophia.inria.fr
finger: avega@pax.inria.fr
*/
FILE_LICENCE ( BSD3 );
#include "nic.h"
/*
* Ethernet software status per interface.
*/
/*
* Some global constants
*/
#define TX_INIT_RATE 16
#define TX_INIT_MAX_RATE 64
#define RX_INIT_LATENCY 64
#define RX_INIT_EARLY_THRESH 64
#define MIN_RX_EARLY_THRESHF 16 /* not less than ether_header */
#define MIN_RX_EARLY_THRESHL 4
#define EEPROMSIZE 0x40
#define MAX_EEPROMBUSY 1000
#define EP_ID_PORT_START 0x110 /* avoid 0x100 to avoid conflict with SB16 */
#define EP_ID_PORT_INC 0x10
#define EP_ID_PORT_END 0x200
#define EP_TAG_MAX 0x7 /* must be 2^n - 1 */
/*
* Commands to read/write EEPROM trough EEPROM command register (Window 0,
* Offset 0xa)
*/
#define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */
#define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */
#define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
#define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */
#define EEPROM_BUSY (1<<15)
#define EEPROM_TST_MODE (1<<14)
/*
* Some short functions, worth to let them be a macro
*/
#define is_eeprom_busy(b) (inw((b)+EP_W0_EEPROM_COMMAND)&EEPROM_BUSY)
#define GO_WINDOW(b,x) outw(WINDOW_SELECT|(x), (b)+EP_COMMAND)
/**************************************************************************
*
* These define the EEPROM data structure. They are used in the probe
* function to verify the existance of the adapter after having sent
* the ID_Sequence.
*
* There are others but only the ones we use are defined here.
*
**************************************************************************/
#define EEPROM_NODE_ADDR_0 0x0 /* Word */
#define EEPROM_NODE_ADDR_1 0x1 /* Word */
#define EEPROM_NODE_ADDR_2 0x2 /* Word */
#define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */
#define EEPROM_MFG_ID 0x7 /* 0x6d50 */
#define EEPROM_ADDR_CFG 0x8 /* Base addr */
#define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */
/**************************************************************************
*
* These are the registers for the 3Com 3c509 and their bit patterns when
* applicable. They have been taken out the the "EtherLink III Parallel
* Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual
* from 3com.
*
* Getting this document out of 3Com is almost impossible. However,
* archived copies are available at
* http://www.osdever.net/cottontail/downloads/docs/3c5x9b.zip and
* several other places on the web (search for 3c5x9b.pdf).
*
**************************************************************************/
#define EP_COMMAND 0x0e /* Write. BASE+0x0e is always a
* command reg. */
#define EP_STATUS 0x0e /* Read. BASE+0x0e is always status
* reg. */
#define EP_WINDOW 0x0f /* Read. BASE+0x0f is always window
* reg. */
/*
* Window 0 registers. Setup.
*/
/* Write */
#define EP_W0_EEPROM_DATA 0x0c
#define EP_W0_EEPROM_COMMAND 0x0a
#define EP_W0_RESOURCE_CFG 0x08
#define EP_W0_ADDRESS_CFG 0x06
#define EP_W0_CONFIG_CTRL 0x04
/* Read */
#define EP_W0_PRODUCT_ID 0x02
#define EP_W0_MFG_ID 0x00
/*
* Window 1 registers. Operating Set.
*/
/* Write */
#define EP_W1_TX_PIO_WR_2 0x02
#define EP_W1_TX_PIO_WR_1 0x00
/* Read */
#define EP_W1_FREE_TX 0x0c
#define EP_W1_TX_STATUS 0x0b /* byte */
#define EP_W1_TIMER 0x0a /* byte */
#define EP_W1_RX_STATUS 0x08
#define EP_W1_RX_PIO_RD_2 0x02
#define EP_W1_RX_PIO_RD_1 0x00
/*
* Window 2 registers. Station Address Setup/Read
*/
/* Read/Write */
#define EP_W2_ADDR_5 0x05
#define EP_W2_ADDR_4 0x04
#define EP_W2_ADDR_3 0x03
#define EP_W2_ADDR_2 0x02
#define EP_W2_ADDR_1 0x01
#define EP_W2_ADDR_0 0x00
/*
* Window 3 registers. FIFO Management.
*/
/* Read */
#define EP_W3_FREE_TX 0x0c
#define EP_W3_FREE_RX 0x0a
/*
* Window 4 registers. Diagnostics.
*/
/* Read/Write */
#define EP_W4_MEDIA_TYPE 0x0a
#define EP_W4_CTRLR_STATUS 0x08
#define EP_W4_NET_DIAG 0x06
#define EP_W4_FIFO_DIAG 0x04
#define EP_W4_HOST_DIAG 0x02
#define EP_W4_TX_DIAG 0x00
/*
* Window 5 Registers. Results and Internal status.
*/
/* Read */
#define EP_W5_READ_0_MASK 0x0c
#define EP_W5_INTR_MASK 0x0a
#define EP_W5_RX_FILTER 0x08
#define EP_W5_RX_EARLY_THRESH 0x06
#define EP_W5_TX_AVAIL_THRESH 0x02
#define EP_W5_TX_START_THRESH 0x00
/*
* Window 6 registers. Statistics.
*/
/* Read/Write */
#define TX_TOTAL_OK 0x0c
#define RX_TOTAL_OK 0x0a
#define TX_DEFERRALS 0x08
#define RX_FRAMES_OK 0x07
#define TX_FRAMES_OK 0x06
#define RX_OVERRUNS 0x05
#define TX_COLLISIONS 0x04
#define TX_AFTER_1_COLLISION 0x03
#define TX_AFTER_X_COLLISIONS 0x02
#define TX_NO_SQE 0x01
#define TX_CD_LOST 0x00
/****************************************
*
* Register definitions.
*
****************************************/
/*
* Command register. All windows.
*
* 16 bit register.
* 15-11: 5-bit code for command to be executed.
* 10-0: 11-bit arg if any. For commands with no args;
* this can be set to anything.
*/
#define GLOBAL_RESET (unsigned short) 0x0000 /* Wait at least 1ms
* after issuing */
#define WINDOW_SELECT (unsigned short) (0x1<<11)
#define START_TRANSCEIVER (unsigned short) (0x2<<11) /* Read ADDR_CFG reg to
* determine whether
* this is needed. If
* so; wait 800 uSec
* before using trans-
* ceiver. */
#define RX_DISABLE (unsigned short) (0x3<<11) /* state disabled on
* power-up */
#define RX_ENABLE (unsigned short) (0x4<<11)
#define RX_RESET (unsigned short) (0x5<<11)
#define RX_DISCARD_TOP_PACK (unsigned short) (0x8<<11)
#define TX_ENABLE (unsigned short) (0x9<<11)
#define TX_DISABLE (unsigned short) (0xa<<11)
#define TX_RESET (unsigned short) (0xb<<11)
#define REQ_INTR (unsigned short) (0xc<<11)
#define SET_INTR_MASK (unsigned short) (0xe<<11)
#define SET_RD_0_MASK (unsigned short) (0xf<<11)
#define SET_RX_FILTER (unsigned short) (0x10<<11)
#define FIL_INDIVIDUAL (unsigned short) (0x1)
#define FIL_GROUP (unsigned short) (0x2)
#define FIL_BRDCST (unsigned short) (0x4)
#define FIL_ALL (unsigned short) (0x8)
#define SET_RX_EARLY_THRESH (unsigned short) (0x11<<11)
#define SET_TX_AVAIL_THRESH (unsigned short) (0x12<<11)
#define SET_TX_START_THRESH (unsigned short) (0x13<<11)
#define STATS_ENABLE (unsigned short) (0x15<<11)
#define STATS_DISABLE (unsigned short) (0x16<<11)
#define STOP_TRANSCEIVER (unsigned short) (0x17<<11)
/*
* The following C_* acknowledge the various interrupts. Some of them don't
* do anything. See the manual.
*/
#define ACK_INTR (unsigned short) (0x6800)
#define C_INTR_LATCH (unsigned short) (ACK_INTR|0x1)
#define C_CARD_FAILURE (unsigned short) (ACK_INTR|0x2)
#define C_TX_COMPLETE (unsigned short) (ACK_INTR|0x4)
#define C_TX_AVAIL (unsigned short) (ACK_INTR|0x8)
#define C_RX_COMPLETE (unsigned short) (ACK_INTR|0x10)
#define C_RX_EARLY (unsigned short) (ACK_INTR|0x20)
#define C_INT_RQD (unsigned short) (ACK_INTR|0x40)
#define C_UPD_STATS (unsigned short) (ACK_INTR|0x80)
/*
* Status register. All windows.
*
* 15-13: Window number(0-7).
* 12: Command_in_progress.
* 11: reserved.
* 10: reserved.
* 9: reserved.
* 8: reserved.
* 7: Update Statistics.
* 6: Interrupt Requested.
* 5: RX Early.
* 4: RX Complete.
* 3: TX Available.
* 2: TX Complete.
* 1: Adapter Failure.
* 0: Interrupt Latch.
*/
#define S_INTR_LATCH (unsigned short) (0x1)
#define S_CARD_FAILURE (unsigned short) (0x2)
#define S_TX_COMPLETE (unsigned short) (0x4)
#define S_TX_AVAIL (unsigned short) (0x8)
#define S_RX_COMPLETE (unsigned short) (0x10)
#define S_RX_EARLY (unsigned short) (0x20)
#define S_INT_RQD (unsigned short) (0x40)
#define S_UPD_STATS (unsigned short) (0x80)
#define S_5_INTS (S_CARD_FAILURE|S_TX_COMPLETE|\
S_TX_AVAIL|S_RX_COMPLETE|S_RX_EARLY)
#define S_COMMAND_IN_PROGRESS (unsigned short) (0x1000)
/*
* FIFO Registers.
* RX Status. Window 1/Port 08
*
* 15: Incomplete or FIFO empty.
* 14: 1: Error in RX Packet 0: Incomplete or no error.
* 13-11: Type of error.
* 1000 = Overrun.
* 1011 = Run Packet Error.
* 1100 = Alignment Error.
* 1101 = CRC Error.
* 1001 = Oversize Packet Error (>1514 bytes)
* 0010 = Dribble Bits.
* (all other error codes, no errors.)
*
* 10-0: RX Bytes (0-1514)
*/
#define ERR_RX_INCOMPLETE (unsigned short) (0x1<<15)
#define ERR_RX (unsigned short) (0x1<<14)
#define ERR_RX_OVERRUN (unsigned short) (0x8<<11)
#define ERR_RX_RUN_PKT (unsigned short) (0xb<<11)
#define ERR_RX_ALIGN (unsigned short) (0xc<<11)
#define ERR_RX_CRC (unsigned short) (0xd<<11)
#define ERR_RX_OVERSIZE (unsigned short) (0x9<<11)
#define ERR_RX_DRIBBLE (unsigned short) (0x2<<11)
/*
* FIFO Registers.
* TX Status. Window 1/Port 0B
*
* Reports the transmit status of a completed transmission. Writing this
* register pops the transmit completion stack.
*
* Window 1/Port 0x0b.
*
* 7: Complete
* 6: Interrupt on successful transmission requested.
* 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_SUCCES_INTR_REQ 0x40
#define TXS_JABBER 0x20
#define TXS_UNDERRUN 0x10
#define TXS_MAX_COLLISION 0x8
#define TXS_STATUS_OVERFLOW 0x4
/*
* Configuration control register.
* Window 0/Port 04
*/
/* Read */
#define IS_AUI (1<<13)
#define IS_BNC (1<<12)
#define IS_UTP (1<<9)
/* Write */
#define ENABLE_DRQ_IRQ 0x0001
#define W0_P4_CMD_RESET_ADAPTER 0x4
#define W0_P4_CMD_ENABLE_ADAPTER 0x1
/*
* Media type and status.
* Window 4/Port 0A
*/
#define ENABLE_UTP 0xc0
#define DISABLE_UTP 0x0
/*
* Resource control register
*/
#define SET_IRQ(i) ( ((i)<<12) | 0xF00) /* set IRQ i */
/*
* Receive status register
*/
#define RX_BYTES_MASK (unsigned short) (0x07ff)
#define RX_ERROR 0x4000
#define RX_INCOMPLETE 0x8000
/*
* Misc defines for various things.
*/
#define MFG_ID 0x6d50 /* in EEPROM and W0 ADDR_CONFIG */
#define PROD_ID 0x9150
#define AUI 0x1
#define BNC 0x2
#define UTP 0x4
#define RX_BYTES_MASK (unsigned short) (0x07ff)
/*
* Function shared between 3c509.c and 3c529.c
*/
extern int t5x9_probe ( struct nic *nic,
uint16_t prod_id_check, uint16_t prod_id_mask );
extern void t5x9_disable ( struct nic *nic );
/*
* Local variables:
* c-basic-offset: 8
* End:
*/