patch-1.3.72 linux/drivers/net/smc9194.h

• Lines: 241
• Date: Fri Mar 8 10:03:32 1996
• Orig file: v1.3.71/linux/drivers/net/smc9194.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.71/linux/drivers/net/smc9194.h linux/drivers/net/smc9194.h
@@ -0,0 +1,240 @@
+/*------------------------------------------------------------------------
+ . smc9194.h
+ . Copyright (C) 1996 by Erik Stahlman 
+ .
+ . This software may be used and distributed according to the terms
+ . of the GNU Public License, incorporated herein by reference.
+ .
+ . This file contains register information and access macros for 
+ . the SMC91xxx chipset.   
+ . 
+ . Information contained in this file was obtained from the SMC91C94 
+ . manual from SMC.  To get a copy, if you really want one, you can find 
+ . information under www.smc.com in the components division.
+ . ( this thanks to advice from Donald Becker ).
+ . 
+ . Authors
+ . 	Erik Stahlman				( erik@vt.edu )
+ .
+ . History
+ . 01/06/96		 Erik Stahlman   moved definitions here from main .c file
+ . 01/19/96		 Erik Stahlman	  polished this up some, and added better
+ .										  error handling
+ .
+ ---------------------------------------------------------------------------*/
+#ifndef _SMC9194_H_
+#define _SMC9194_H_
+
+/* I want some simple types */
+
+typedef unsigned char			byte;
+typedef unsigned short			word;
+typedef unsigned long int 		dword;
+
+
+/* Because of bank switching, the SMC91xxx uses only 16 I/O ports */
+
+#define SMC_IO_EXTENT	16
+
+
+/*---------------------------------------------------------------
+ .  
+ . A description of the SMC registers is probably in order here,
+ . although for details, the SMC datasheet is invaluable.  
+ . 
+ . Basically, the chip has 4 banks of registers ( 0 to 3 ), which
+ . are accessed by writing a number into the BANK_SELECT register
+ . ( I also use a SMC_SELECT_BANK macro for this ).
+ . 
+ . The banks are configured so that for most purposes, bank 2 is all
+ . that is needed for simple run time tasks.  
+ -----------------------------------------------------------------------*/
+
+/*
+ . Bank Select Register: 
+ .
+ .		yyyy yyyy 0000 00xx  
+ .		xx 		= bank number
+ .		yyyy yyyy	= 0x33, for identification purposes.
+*/
+#define	BANK_SELECT		14
+
+/* BANK 0  */
+
+#define	TCR 		0    	/* transmit control register */
+#define TCR_ENABLE	0x0001	/* if this is 1, we can transmit */ 
+#define TCR_FDUPLX    	0x0800  /* receive packets sent out */
+#define TCR_STP_SQET	0x1000	/* stop transmitting if Signal quality error */
+#define	TCR_MON_CNS	0x0400	/* monitors the carrier status */
+#define	TCR_PAD_ENABLE	0x0080	/* pads short packets to 64 bytes */
+
+#define	TCR_CLEAR	0	/* do NOTHING */
+/* the normal settings for the TCR register : */ 
+/* QUESTION: do I want to enable padding of short packets ? */
+#define	TCR_NORMAL  	TCR_ENABLE 
+
+
+#define EPH_STATUS	2
+#define ES_LINK_OK	0x4000	/* is the link integrity ok ? */
+
+#define	RCR		4
+#define RCR_SOFTRESET	0x8000 	/* resets the chip */	
+#define	RCR_STRIP_CRC	0x200	/* strips CRC */
+#define RCR_ENABLE	0x100	/* IFF this is set, we can recieve packets */
+#define RCR_ALMUL	0x4 	/* receive all multicast packets */
+#define	RCR_PROMISC	0x2	/* enable promiscuous mode */
+
+/* the normal settings for the RCR register : */
+#define	RCR_NORMAL	(RCR_STRIP_CRC | RCR_ENABLE)
+#define RCR_CLEAR	0x0		/* set it to a base state */
+
+#define	COUNTER		6
+#define	MIR		8
+#define	MCR		10
+/* 12 is reserved */
+
+/* BANK 1 */
+#define CONFIG			0
+#define CFG_AUI_SELECT	 	0x100
+#define	BASE			2
+#define	ADDR0			4
+#define	ADDR1			6
+#define	ADDR2			8
+#define	GENERAL			10
+#define	CONTROL			12
+#define	CTL_POWERDOWN		0x2000
+#define	CTL_LE_ENABLE		0x80
+#define	CTL_CR_ENABLE		0x40
+#define	CTL_TE_ENABLE		0x0020
+#define CTL_AUTO_RELEASE	0x0800
+#define	CTL_EPROM_ACCESS	0x0003 /* high if Eprom is being read */
+
+/* BANK 2 */
+#define MMU_CMD		0
+#define MC_BUSY		1	/* only readable bit in the register */
+#define MC_NOP		0
+#define	MC_ALLOC	0x20  	/* or with number of 256 byte packets */
+#define	MC_RESET	0x40	
+#define	MC_REMOVE	0x60  	/* remove the current rx packet */
+#define MC_RELEASE  	0x80  	/* remove and release the current rx packet */
+#define MC_FREEPKT  	0xA0  	/* Release packet in PNR register */
+#define MC_ENQUEUE	0xC0 	/* Enqueue the packet for transmit */
+ 	
+#define	PNR_ARR		2
+#define FIFO_PORTS	4
+
+#define FP_RXEMPTY  0x8000
+#define FP_TXEMPTY  0x80
+
+#define	POINTER		6
+#define PTR_READ	0x2000
+#define	PTR_RCV		0x8000
+#define	PTR_AUTOINC 	0x4000
+#define PTR_AUTO_INC	0x0040
+
+#define	DATA_1		8
+#define	DATA_2		10
+#define	INTERRUPT	12
+
+#define INT_MASK	13
+#define IM_RCV_INT	0x1
+#define	IM_TX_INT	0x2
+#define	IM_TX_EMPTY_INT	0x4	
+#define	IM_ALLOC_INT	0x8
+#define	IM_RX_OVRN_INT	0x10
+#define	IM_EPH_INT	0x20
+#define	IM_ERCV_INT	0x40 /* not on SMC9192 */		
+
+/* BANK 3 */
+#define	MULTICAST1	0
+#define	MULTICAST2	2
+#define	MULTICAST3	4
+#define	MULTICAST4	6
+#define	MGMT		8
+#define	REVISION	10 /* ( hi: chip id   low: rev # ) */
+
+
+/* this is NOT on SMC9192 */
+#define	ERCV		12
+
+#define CHIP_9190	3
+#define CHIP_9194	4
+#define CHIP_9195	5
+#define CHIP_91100	7
+
+static const char * chip_ids[ 15 ] =  { 
+	NULL, NULL, NULL, 
+	/* 3 */ "SMC91C90/91C92",
+	/* 4 */ "SMC91C94",
+	/* 5 */ "SMC91C95",
+	NULL,
+	/* 7 */ "SMC91C100", 
+	NULL, NULL, NULL, NULL, 
+	NULL, NULL, NULL};  
+
+/* 
+ . Transmit status bits 
+*/
+#define TS_SUCCESS 0x0001
+#define TS_LOSTCAR 0x0400
+#define TS_LATCOL  0x0200
+#define TS_16COL   0x0010
+
+/*
+ . Receive status bits
+*/
+#define RS_ALGNERR	0x8000
+#define RS_BADCRC	0x2000
+#define RS_ODDFRAME	0x1000
+#define RS_TOOLONG	0x0800
+#define RS_TOOSHORT	0x0400
+#define RS_MULTICAST	0x0001
+#define RS_ERRORS	(RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) 
+
+static const char * interfaces[ 2 ] = { "TP", "AUI" };
+
+/*-------------------------------------------------------------------------
+ .  I define some macros to make it easier to do somewhat common
+ . or slightly complicated, repeated tasks. 
+ --------------------------------------------------------------------------*/
+
+/* select a register bank, 0 to 3  */
+
+#define SMC_SELECT_BANK(x)  { outw( x, ioaddr + BANK_SELECT ); } 
+
+/* define a small delay for the reset */
+#define SMC_DELAY() { inw( ioaddr + RCR );\
+			inw( ioaddr + RCR );\
+			inw( ioaddr + RCR );  }
+
+/* this enables an interrupt in the interrupt mask register */
+#define SMC_ENABLE_INT(x) {\
+		unsigned char mask;\
+		SMC_SELECT_BANK(2);\
+		mask = inb( ioaddr + INT_MASK );\
+		mask |= (x);\
+		outb( mask, ioaddr + INT_MASK ); \
+}
+
+/* this disables an interrupt from the interrupt mask register */
+
+#define SMC_DISABLE_INT(x) {\
+		unsigned char mask;\
+		SMC_SELECT_BANK(2);\
+		mask = inb( ioaddr + INT_MASK );\
+		mask &= ~(x);\
+		outb( mask, ioaddr + INT_MASK ); \
+}
+
+/*----------------------------------------------------------------------
+ . Define the interrupts that I want to recieve from the card
+ . 
+ . I want: 
+ .  IM_EPH_INT, for nasty errors
+ .  IM_RCV_INT, for happy recieved packets
+ .  IM_RX_OVRN_INT, because I have to kick the reciever
+ --------------------------------------------------------------------------*/
+#define SMC_INTERRUPT_MASK   (IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) 
+
+#endif  /* _SMC_9194_H_ */
+