ns87303.h
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- /* $Id: ns87303.h,v 1.3 2000/01/09 15:16:34 ecd Exp $
- * ns87303.h: Configuration Register Description for the
- * National Semiconductor PC87303 (SuperIO).
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
- */
- #ifndef _SPARC_NS87303_H
- #define _SPARC_NS87303_H 1
- /*
- * Controll Register Index Values
- */
- #define FER 0x00
- #define FAR 0x01
- #define PTR 0x02
- #define FCR 0x03
- #define PCR 0x04
- #define KRR 0x05
- #define PMC 0x06
- #define TUP 0x07
- #define SID 0x08
- #define ASC 0x09
- #define CS0CF0 0x0a
- #define CS0CF1 0x0b
- #define CS1CF0 0x0c
- #define CS1CF1 0x0d
- /* Function Enable Register (FER) bits */
- #define FER_EDM 0x10 /* Encoded Drive and Motor pin information */
- /* Function Address Register (FAR) bits */
- #define FAR_LPT_MASK 0x03
- #define FAR_LPTB 0x00
- #define FAR_LPTA 0x01
- #define FAR_LPTC 0x02
- /* Power and Test Register (PTR) bits */
- #define PTR_LPTB_IRQ7 0x08
- #define PTR_LEVEL_IRQ 0x80 /* When not ECP/EPP: Use level IRQ */
- #define PTR_LPT_REG_DIR 0x80 /* When ECP/EPP: LPT CTR controlls direction */
- /* of the parallel port */
- /* Function Control Register (FCR) bits */
- #define FCR_LDE 0x10 /* Logical Drive Exchange */
- #define FCR_ZWS_ENA 0x20 /* Enable short host read/write in ECP/EPP */
- /* Printer Control Register (PCR) bits */
- #define PCR_EPP_ENABLE 0x01
- #define PCR_EPP_IEEE 0x02 /* Enable EPP Version 1.9 (IEEE 1284) */
- #define PCR_ECP_ENABLE 0x04
- #define PCR_ECP_CLK_ENA 0x08 /* If 0 ECP Clock is stopped on Power down */
- #define PCR_IRQ_POLAR 0x20 /* If 0 IRQ is level high or negative pulse, */
- /* if 1 polarity is inverted */
- #define PCR_IRQ_ODRAIN 0x40 /* If 1, IRQ is open drain */
- /* Tape UARTs and Parallel Port Config Register (TUP) bits */
- #define TUP_EPP_TIMO 0x02 /* Enable EPP timeout IRQ */
- /* Advanced SuperIO Config Register (ASC) bits */
- #define ASC_LPT_IRQ7 0x01 /* Allways use IRQ7 for LPT */
- #define ASC_DRV2_SEL 0x02 /* Logical Drive Exchange controlled by TDR */
- #define FER_RESERVED 0x00
- #define FAR_RESERVED 0x00
- #define PTR_RESERVED 0x73
- #define FCR_RESERVED 0xc4
- #define PCR_RESERVED 0x10
- #define KRR_RESERVED 0x00
- #define PMC_RESERVED 0x98
- #define TUP_RESERVED 0xfb
- #define SIP_RESERVED 0x00
- #define ASC_RESERVED 0x18
- #define CS0CF0_RESERVED 0x00
- #define CS0CF1_RESERVED 0x08
- #define CS1CF0_RESERVED 0x00
- #define CS1CF1_RESERVED 0x08
- #ifdef __KERNEL__
- #include <asm/system.h>
- #include <asm/io.h>
- static __inline__ int ns87303_modify(unsigned long port, unsigned int index,
- unsigned char clr, unsigned char set)
- {
- static unsigned char reserved[] = {
- FER_RESERVED, FAR_RESERVED, PTR_RESERVED, FCR_RESERVED,
- PCR_RESERVED, KRR_RESERVED, PMC_RESERVED, TUP_RESERVED,
- SIP_RESERVED, ASC_RESERVED, CS0CF0_RESERVED, CS0CF1_RESERVED,
- CS1CF0_RESERVED, CS1CF1_RESERVED
- };
- unsigned long flags;
- unsigned char value;
- if (index > 0x0d)
- return -EINVAL;
- save_flags(flags); cli();
- outb(index, port);
- value = inb(port + 1);
- value &= ~(reserved[index] | clr);
- value |= set;
- outb(value, port + 1);
- outb(value, port + 1);
- restore_flags(flags);
- return 0;
- }
- #endif /* __KERNEL__ */
- #endif /* !(_SPARC_NS87303_H) */