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u-boot/drivers/lan91c96.h
wdenk 45219c4660 Patch by Mathijs Haarman, 08 May 2003: 
Add lan91c96 driver (tested on Lubbock and custom PXA250 board only)
2003-05-12 21:50:16 +00:00

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/*------------------------------------------------------------------------
* lan91c96.h
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Rolf Offermanns <rof@sysgo.de>
* Copyright (C) 2001 Standard Microsystems Corporation (SMSC)
* Developed by Simple Network Magic Corporation (SNMC)
* Copyright (C) 1996 by Erik Stahlman (ES)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* This file contains register information and access macros for
* the LAN91C96 single chip ethernet controller. It is a modified
* version of the smc9111.h file.
*
* Information contained in this file was obtained from the LAN91C96
* manual from SMC. To get a copy, if you really want one, you can find
* information under www.smsc.com.
*
* Authors
* Erik Stahlman ( erik@vt.edu )
* Daris A Nevil ( dnevil@snmc.com )
*
* History
* 04/30/03 Mathijs Haarman Modified smc91111.h (u-boot version)
* for lan91c96
*-------------------------------------------------------------------------
*/
#ifndef _LAN91C96_H_
#define _LAN91C96_H_
#include <asm/types.h>
#include <asm/io.h>
#include <config.h>
/*
* This function may be called by the board specific initialisation code
* in order to override the default mac address.
*/
void smc_set_mac_addr(const char *addr);
int eth_hw_init(void);
/* I want some simple types */
typedef unsigned char byte;
typedef unsigned short word;
typedef unsigned long int dword;
/*
* DEBUGGING LEVELS
*
* 0 for normal operation
* 1 for slightly more details
* >2 for various levels of increasingly useless information
* 2 for interrupt tracking, status flags
* 3 for packet info
* 4 for complete packet dumps
*/
/*#define SMC_DEBUG 0 */
/* Because of bank switching, the LAN91xxx uses only 16 I/O ports */
#define SMC_IO_EXTENT 16
#ifdef CONFIG_PXA250
#define SMC_inl(r) (*((volatile dword *)(SMC_BASE_ADDRESS+( r * 4 ))))
#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+( r * 4 ))))
#define SMC_inb(p) ({ \
unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p * 4)); \
unsigned int __v = *(volatile unsigned short *)((__p) & ~1); \
if (__p & 1) __v >>= 8; \
else __v &= 0xff; \
__v; })
#define SMC_outl(d,r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r * 4))) = d)
#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r * 4))) = d)
#define SMC_outb(d,r) ({ word __d = (byte)(d); \
word __w = SMC_inw((r)&~1); \
__w &= ((r)&1) ? 0x00FF : 0xFF00; \
__w |= ((r)&1) ? __d<<8 : __d; \
SMC_outw(__w,(r)&~1); \
})
#define SMC_outsl(r,b,l) ({ int __i; \
dword *__b2; \
__b2 = (dword *) b; \
for (__i = 0; __i < l; __i++) { \
SMC_outl( *(__b2 + __i), r ); \
} \
})
#define SMC_outsw(r,b,l) ({ int __i; \
word *__b2; \
__b2 = (word *) b; \
for (__i = 0; __i < l; __i++) { \
SMC_outw( *(__b2 + __i), r ); \
} \
})
#define SMC_insl(r,b,l) ({ int __i ; \
dword *__b2; \
__b2 = (dword *) b; \
for (__i = 0; __i < l; __i++) { \
*(__b2 + __i) = SMC_inl(r); \
SMC_inl(0); \
}; \
})
#define SMC_insw(r,b,l) ({ int __i ; \
word *__b2; \
__b2 = (word *) b; \
for (__i = 0; __i < l; __i++) { \
*(__b2 + __i) = SMC_inw(r); \
SMC_inw(0); \
}; \
})
#define SMC_insb(r,b,l) ({ int __i ; \
byte *__b2; \
__b2 = (byte *) b; \
for (__i = 0; __i < l; __i++) { \
*(__b2 + __i) = SMC_inb(r); \
SMC_inb(0); \
}; \
})
#else /* if not CONFIG_PXA250 */
/*
* We have only 16 Bit PCMCIA access on Socket 0
*/
#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))))
#define SMC_inb(r) (((r)&1) ? SMC_inw((r)&~1)>>8 : SMC_inw(r)&0xFF)
#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
#define SMC_outb(d,r) ({ word __d = (byte)(d); \
word __w = SMC_inw((r)&~1); \
__w &= ((r)&1) ? 0x00FF : 0xFF00; \
__w |= ((r)&1) ? __d<<8 : __d; \
SMC_outw(__w,(r)&~1); \
})
#if 0
#define SMC_outsw(r,b,l) outsw(SMC_BASE_ADDRESS+(r), (b), (l))
#else
#define SMC_outsw(r,b,l) ({ int __i; \
word *__b2; \
__b2 = (word *) b; \
for (__i = 0; __i < l; __i++) { \
SMC_outw( *(__b2 + __i), r); \
} \
})
#endif
#if 0
#define SMC_insw(r,b,l) insw(SMC_BASE_ADDRESS+(r), (b), (l))
#else
#define SMC_insw(r,b,l) ({ int __i ; \
word *__b2; \
__b2 = (word *) b; \
for (__i = 0; __i < l; __i++) { \
*(__b2 + __i) = SMC_inw(r); \
SMC_inw(0); \
}; \
})
#endif
#endif
/*
****************************************************************************
* Bank Select Field
****************************************************************************
*/
#define LAN91C96_BANK_SELECT 14 // Bank Select Register
#define LAN91C96_BANKSELECT (0x3UC << 0)
#define BANK0 0x00
#define BANK1 0x01
#define BANK2 0x02
#define BANK3 0x03
#define BANK4 0x04
/*
****************************************************************************
* EEPROM Addresses.
****************************************************************************
*/
#define EEPROM_MAC_OFFSET_1 0x6020
#define EEPROM_MAC_OFFSET_2 0x6021
#define EEPROM_MAC_OFFSET_3 0x6022
/*
****************************************************************************
* Bank 0 Register Map in I/O Space
****************************************************************************
*/
#define LAN91C96_TCR 0 // Transmit Control Register
#define LAN91C96_EPH_STATUS 2 // EPH Status Register
#define LAN91C96_RCR 4 // Receive Control Register
#define LAN91C96_COUNTER 6 // Counter Register
#define LAN91C96_MIR 8 // Memory Information Register
#define LAN91C96_MCR 10 // Memory Configuration Register
/*
****************************************************************************
* Transmit Control Register - Bank 0 - Offset 0
****************************************************************************
*/
#define LAN91C96_TCR_TXENA (0x1U << 0)
#define LAN91C96_TCR_LOOP (0x1U << 1)
#define LAN91C96_TCR_FORCOL (0x1U << 2)
#define LAN91C96_TCR_TXP_EN (0x1U << 3)
#define LAN91C96_TCR_PAD_EN (0x1U << 7)
#define LAN91C96_TCR_NOCRC (0x1U << 8)
#define LAN91C96_TCR_MON_CSN (0x1U << 10)
#define LAN91C96_TCR_FDUPLX (0x1U << 11)
#define LAN91C96_TCR_STP_SQET (0x1U << 12)
#define LAN91C96_TCR_EPH_LOOP (0x1U << 13)
#define LAN91C96_TCR_ETEN_TYPE (0x1U << 14)
#define LAN91C96_TCR_FDSE (0x1U << 15)
/*
****************************************************************************
* EPH Status Register - Bank 0 - Offset 2
****************************************************************************
*/
#define LAN91C96_EPHSR_TX_SUC (0x1U << 0)
#define LAN91C96_EPHSR_SNGL_COL (0x1U << 1)
#define LAN91C96_EPHSR_MUL_COL (0x1U << 2)
#define LAN91C96_EPHSR_LTX_MULT (0x1U << 3)
#define LAN91C96_EPHSR_16COL (0x1U << 4)
#define LAN91C96_EPHSR_SQET (0x1U << 5)
#define LAN91C96_EPHSR_LTX_BRD (0x1U << 6)
#define LAN91C96_EPHSR_TX_DEFR (0x1U << 7)
#define LAN91C96_EPHSR_WAKEUP (0x1U << 8)
#define LAN91C96_EPHSR_LATCOL (0x1U << 9)
#define LAN91C96_EPHSR_LOST_CARR (0x1U << 10)
#define LAN91C96_EPHSR_EXC_DEF (0x1U << 11)
#define LAN91C96_EPHSR_CTR_ROL (0x1U << 12)
#define LAN91C96_EPHSR_LINK_OK (0x1U << 14)
#define LAN91C96_EPHSR_TX_UNRN (0x1U << 15)
#define LAN91C96_EPHSR_ERRORS (LAN91C96_EPHSR_SNGL_COL | \
LAN91C96_EPHSR_MUL_COL | \
LAN91C96_EPHSR_16COL | \
LAN91C96_EPHSR_SQET | \
LAN91C96_EPHSR_TX_DEFR | \
LAN91C96_EPHSR_LATCOL | \
LAN91C96_EPHSR_LOST_CARR | \
LAN91C96_EPHSR_EXC_DEF | \
LAN91C96_EPHSR_LINK_OK | \
LAN91C96_EPHSR_TX_UNRN)
/*
****************************************************************************
* Receive Control Register - Bank 0 - Offset 4
****************************************************************************
*/
#define LAN91C96_RCR_RX_ABORT (0x1U << 0)
#define LAN91C96_RCR_PRMS (0x1U << 1)
#define LAN91C96_RCR_ALMUL (0x1U << 2)
#define LAN91C96_RCR_RXEN (0x1U << 8)
#define LAN91C96_RCR_STRIP_CRC (0x1U << 9)
#define LAN91C96_RCR_FILT_CAR (0x1U << 14)
#define LAN91C96_RCR_SOFT_RST (0x1U << 15)
/*
****************************************************************************
* Counter Register - Bank 0 - Offset 6
****************************************************************************
*/
#define LAN91C96_ECR_SNGL_COL (0xFU << 0)
#define LAN91C96_ECR_MULT_COL (0xFU << 5)
#define LAN91C96_ECR_DEF_TX (0xFU << 8)
#define LAN91C96_ECR_EXC_DEF_TX (0xFU << 12)
/*
****************************************************************************
* Memory Information Register - Bank 0 - OFfset 8
****************************************************************************
*/
#define LAN91C96_MIR_SIZE (0x18 << 0) // 6144 bytes
/*
****************************************************************************
* Memory Configuration Register - Bank 0 - Offset 10
****************************************************************************
*/
#define LAN91C96_MCR_MEM_RES (0xFFU << 0)
#define LAN91C96_MCR_MEM_MULT (0x3U << 9)
#define LAN91C96_MCR_HIGH_ID (0x3U << 12)
#define LAN91C96_MCR_TRANSMIT_PAGES 0x6
/*
****************************************************************************
* Bank 1 Register Map in I/O Space
****************************************************************************
*/
#define LAN91C96_CONFIG 0 // Configuration Register
#define LAN91C96_BASE 2 // Base Address Register
#define LAN91C96_IA0 4 // Individual Address Register - 0
#define LAN91C96_IA1 5 // Individual Address Register - 1
#define LAN91C96_IA2 6 // Individual Address Register - 2
#define LAN91C96_IA3 7 // Individual Address Register - 3
#define LAN91C96_IA4 8 // Individual Address Register - 4
#define LAN91C96_IA5 9 // Individual Address Register - 5
#define LAN91C96_GEN_PURPOSE 10 // General Address Registers
#define LAN91C96_CONTROL 12 // Control Register
/*
****************************************************************************
* Configuration Register - Bank 1 - Offset 0
****************************************************************************
*/
#define LAN91C96_CR_INT_SEL0 (0x1U << 1)
#define LAN91C96_CR_INT_SEL1 (0x1U << 2)
#define LAN91C96_CR_RES (0x3U << 3)
#define LAN91C96_CR_DIS_LINK (0x1U << 6)
#define LAN91C96_CR_16BIT (0x1U << 7)
#define LAN91C96_CR_AUI_SELECT (0x1U << 8)
#define LAN91C96_CR_SET_SQLCH (0x1U << 9)
#define LAN91C96_CR_FULL_STEP (0x1U << 10)
#define LAN91C96_CR_NO_WAIT (0x1U << 12)
/*
****************************************************************************
* Base Address Register - Bank 1 - Offset 2
****************************************************************************
*/
#define LAN91C96_BAR_RA_BITS (0x27U << 0)
#define LAN91C96_BAR_ROM_SIZE (0x1U << 6)
#define LAN91C96_BAR_A_BITS (0xFFU << 8)
/*
****************************************************************************
* Control Register - Bank 1 - Offset 12
****************************************************************************
*/
#define LAN91C96_CTR_STORE (0x1U << 0)
#define LAN91C96_CTR_RELOAD (0x1U << 1)
#define LAN91C96_CTR_EEPROM (0x1U << 2)
#define LAN91C96_CTR_TE_ENABLE (0x1U << 5)
#define LAN91C96_CTR_CR_ENABLE (0x1U << 6)
#define LAN91C96_CTR_LE_ENABLE (0x1U << 7)
#define LAN91C96_CTR_BIT_8 (0x1U << 8)
#define LAN91C96_CTR_AUTO_RELEASE (0x1U << 11)
#define LAN91C96_CTR_WAKEUP_EN (0x1U << 12)
#define LAN91C96_CTR_PWRDN (0x1U << 13)
#define LAN91C96_CTR_RCV_BAD (0x1U << 14)
/*
****************************************************************************
* Bank 2 Register Map in I/O Space
****************************************************************************
*/
#define LAN91C96_MMU 0 // MMU Command Register
#define LAN91C96_AUTO_TX_START 1 // Auto Tx Start Register
#define LAN91C96_PNR 2 // Packet Number Register
#define LAN91C96_ARR 3 // Allocation Result Register
#define LAN91C96_FIFO 4 // FIFO Ports Register
#define LAN91C96_POINTER 6 // Pointer Register
#define LAN91C96_DATA_HIGH 8 // Data High Register
#define LAN91C96_DATA_LOW 10 // Data Low Register
#define LAN91C96_INT_STATS 12 // Interrupt Status Register - RO
#define LAN91C96_INT_ACK 12 // Interrupt Acknowledge Register -WO
#define LAN91C96_INT_MASK 13 // Interrupt Mask Register
/*
****************************************************************************
* MMU Command Register - Bank 2 - Offset 0
****************************************************************************
*/
#define LAN91C96_MMUCR_NO_BUSY (0x1U << 0)
#define LAN91C96_MMUCR_N1 (0x1U << 1)
#define LAN91C96_MMUCR_N2 (0x1U << 2)
#define LAN91C96_MMUCR_COMMAND (0xFU << 4)
#define LAN91C96_MMUCR_ALLOC_TX (0x2U << 4) // WXYZ = 0010
#define LAN91C96_MMUCR_RESET_MMU (0x4U << 4) // WXYZ = 0100
#define LAN91C96_MMUCR_REMOVE_RX (0x6U << 4) // WXYZ = 0110
#define LAN91C96_MMUCR_REMOVE_TX (0x7U << 4) // WXYZ = 0111
#define LAN91C96_MMUCR_RELEASE_RX (0x8U << 4) // WXYZ = 1000
#define LAN91C96_MMUCR_RELEASE_TX (0xAU << 4) // WXYZ = 1010
#define LAN91C96_MMUCR_ENQUEUE (0xCU << 4) // WXYZ = 1100
#define LAN91C96_MMUCR_RESET_TX (0xEU << 4) // WXYZ = 1110
/*
****************************************************************************
* Auto Tx Start Register - Bank 2 - Offset 1
****************************************************************************
*/
#define LAN91C96_AUTOTX (0xFFU << 0)
/*
****************************************************************************
* Packet Number Register - Bank 2 - Offset 2
****************************************************************************
*/
#define LAN91C96_PNR_TX (0x1FU << 0)
/*
****************************************************************************
* Allocation Result Register - Bank 2 - Offset 3
****************************************************************************
*/
#define LAN91C96_ARR_ALLOC_PN (0x7FU << 0)
#define LAN91C96_ARR_FAILED (0x1U << 7)
/*
****************************************************************************
* FIFO Ports Register - Bank 2 - Offset 4
****************************************************************************
*/
#define LAN91C96_FIFO_TX_DONE_PN (0x1FU << 0)
#define LAN91C96_FIFO_TEMPTY (0x1U << 7)
#define LAN91C96_FIFO_RX_DONE_PN (0x1FU << 8)
#define LAN91C96_FIFO_RXEMPTY (0x1U << 15)
/*
****************************************************************************
* Pointer Register - Bank 2 - Offset 6
****************************************************************************
*/
#define LAN91C96_PTR_LOW (0xFFU << 0)
#define LAN91C96_PTR_HIGH (0x7U << 8)
#define LAN91C96_PTR_AUTO_TX (0x1U << 11)
#define LAN91C96_PTR_ETEN (0x1U << 12)
#define LAN91C96_PTR_READ (0x1U << 13)
#define LAN91C96_PTR_AUTO_INCR (0x1U << 14)
#define LAN91C96_PTR_RCV (0x1U << 15)
#define LAN91C96_PTR_RX_FRAME (LAN91C96_PTR_RCV | \
LAN91C96_PTR_AUTO_INCR | \
LAN91C96_PTR_READ)
/*
****************************************************************************
* Data Register - Bank 2 - Offset 8
****************************************************************************
*/
#define LAN91C96_CONTROL_CRC (0x1U << 4) // CRC bit
#define LAN91C96_CONTROL_ODD (0x1U << 5) // ODD bit
/*
****************************************************************************
* Interrupt Status Register - Bank 2 - Offset 12
****************************************************************************
*/
#define LAN91C96_IST_RCV_INT (0x1U << 0)
#define LAN91C96_IST_TX_INT (0x1U << 1)
#define LAN91C96_IST_TX_EMPTY_INT (0x1U << 2)
#define LAN91C96_IST_ALLOC_INT (0x1U << 3)
#define LAN91C96_IST_RX_OVRN_INT (0x1U << 4)
#define LAN91C96_IST_EPH_INT (0x1U << 5)
#define LAN91C96_IST_ERCV_INT (0x1U << 6)
#define LAN91C96_IST_RX_IDLE_INT (0x1U << 7)
/*
****************************************************************************
* Interrupt Acknowledge Register - Bank 2 - Offset 12
****************************************************************************
*/
#define LAN91C96_ACK_TX_INT (0x1U << 1)
#define LAN91C96_ACK_TX_EMPTY_INT (0x1U << 2)
#define LAN91C96_ACK_RX_OVRN_INT (0x1U << 4)
#define LAN91C96_ACK_ERCV_INT (0x1U << 6)
/*
****************************************************************************
* Interrupt Mask Register - Bank 2 - Offset 13
****************************************************************************
*/
#define LAN91C96_MSK_RCV_INT (0x1U << 0)
#define LAN91C96_MSK_TX_INT (0x1U << 1)
#define LAN91C96_MSK_TX_EMPTY_INT (0x1U << 2)
#define LAN91C96_MSK_ALLOC_INT (0x1U << 3)
#define LAN91C96_MSK_RX_OVRN_INT (0x1U << 4)
#define LAN91C96_MSK_EPH_INT (0x1U << 5)
#define LAN91C96_MSK_ERCV_INT (0x1U << 6)
#define LAN91C96_MSK_TX_IDLE_INT (0x1U << 7)
/*
****************************************************************************
* Bank 3 Register Map in I/O Space
**************************************************************************
*/
#define LAN91C96_MGMT_MDO (0x1U << 0)
#define LAN91C96_MGMT_MDI (0x1U << 1)
#define LAN91C96_MGMT_MCLK (0x1U << 2)
#define LAN91C96_MGMT_MDOE (0x1U << 3)
#define LAN91C96_MGMT_LOW_ID (0x3U << 4)
#define LAN91C96_MGMT_IOS0 (0x1U << 8)
#define LAN91C96_MGMT_IOS1 (0x1U << 9)
#define LAN91C96_MGMT_IOS2 (0x1U << 10)
#define LAN91C96_MGMT_nXNDEC (0x1U << 11)
#define LAN91C96_MGMT_HIGH_ID (0x3U << 12)
/*
****************************************************************************
* Revision Register - Bank 3 - Offset 10
****************************************************************************
*/
#define LAN91C96_REV_REVID (0xFU << 0)
#define LAN91C96_REV_CHIPID (0xFU << 4)
/*
****************************************************************************
* Early RCV Register - Bank 3 - Offset 12
****************************************************************************
*/
#define LAN91C96_ERCV_THRESHOLD (0x1FU << 0)
#define LAN91C96_ERCV_RCV_DISCRD (0x1U << 7)
/*
****************************************************************************
* PCMCIA Configuration Registers
****************************************************************************
*/
#define LAN91C96_ECOR 0x8000 // Ethernet Configuration Register
#define LAN91C96_ECSR 0x8002 // Ethernet Configuration and Status
/*
****************************************************************************
* PCMCIA Ethernet Configuration Option Register (ECOR)
****************************************************************************
*/
#define LAN91C96_ECOR_ENABLE (0x1U << 0)
#define LAN91C96_ECOR_WR_ATTRIB (0x1U << 2)
#define LAN91C96_ECOR_LEVEL_REQ (0x1U << 6)
#define LAN91C96_ECOR_SRESET (0x1U << 7)
/*
****************************************************************************
* PCMCIA Ethernet Configuration and Status Register (ECSR)
****************************************************************************
*/
#define LAN91C96_ECSR_INTR (0x1U << 1)
#define LAN91C96_ECSR_PWRDWN (0x1U << 2)
#define LAN91C96_ECSR_IOIS8 (0x1U << 5)
/*
****************************************************************************
* Receive Frame Status Word - See page 38 of the LAN91C96 specification.
****************************************************************************
*/
#define LAN91C96_TOO_SHORT (0x1U << 10)
#define LAN91C96_TOO_LONG (0x1U << 11)
#define LAN91C96_ODD_FRM (0x1U << 12)
#define LAN91C96_BAD_CRC (0x1U << 13)
#define LAN91C96_BROD_CAST (0x1U << 14)
#define LAN91C96_ALGN_ERR (0x1U << 15)
#define FRAME_FILTER (LAN91C96_TOO_SHORT | LAN91C96_TOO_LONG | LAN91C96_BAD_CRC | LAN91C96_ALGN_ERR)
/*
****************************************************************************
* Default MAC Address
****************************************************************************
*/
#define MAC_DEF_HI 0x0800
#define MAC_DEF_MED 0x3333
#define MAC_DEF_LO 0x0100
/*
****************************************************************************
* Default I/O Signature - 0x33
****************************************************************************
*/
#define LAN91C96_LOW_SIGNATURE (0x33U << 0)
#define LAN91C96_HIGH_SIGNATURE (0x33U << 8)
#define LAN91C96_SIGNATURE (LAN91C96_HIGH_SIGNATURE | LAN91C96_LOW_SIGNATURE)
#define LAN91C96_MAX_PAGES 6 // Maximum number of 256 pages.
#define ETHERNET_MAX_LENGTH 1514
/*-------------------------------------------------------------------------
* 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) { SMC_outw( x, LAN91C96_BANK_SELECT ); }
/* this enables an interrupt in the interrupt mask register */
#define SMC_ENABLE_INT(x) {\
unsigned char mask;\
SMC_SELECT_BANK(2);\
mask = SMC_inb( LAN91C96_INT_MASK );\
mask |= (x);\
SMC_outb( mask, LAN91C96_INT_MASK ); \
}
/* this disables an interrupt from the interrupt mask register */
#define SMC_DISABLE_INT(x) {\
unsigned char mask;\
SMC_SELECT_BANK(2);\
mask = SMC_inb( LAN91C96_INT_MASK );\
mask &= ~(x);\
SMC_outb( mask, LAN91C96_INT_MASK ); \
}
/*----------------------------------------------------------------------
* Define the interrupts that I want to receive from the card
*
* I want:
* LAN91C96_IST_EPH_INT, for nasty errors
* LAN91C96_IST_RCV_INT, for happy received packets
* LAN91C96_IST_RX_OVRN_INT, because I have to kick the receiver
*-------------------------------------------------------------------------
*/
#define SMC_INTERRUPT_MASK (LAN91C96_IST_EPH_INT | LAN91C96_IST_RX_OVRN_INT | LAN91C96_IST_RCV_INT)
#endif /* _LAN91C96_H_ */
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