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kn01.h

/*
 * Hardware info about DECstation DS2100/3100 systems (otherwise known as
 * pmin/pmax or KN01).
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
 * are by courtesy of Chris Fraser.
 * Copyright (C) 2002, 2003, 2005  Maciej W. Rozycki
 */
#ifndef __ASM_MIPS_DEC_KN01_H
#define __ASM_MIPS_DEC_KN01_H

#define KN01_SLOT_BASE  0x10000000
#define KN01_SLOT_SIZE  0x01000000

/*
 * Address ranges for devices.
 */
#define KN01_PMASK      (0*KN01_SLOT_SIZE)      /* color plane mask */
#define KN01_PCC  (1*KN01_SLOT_SIZE)      /* PCC (DC503) cursor */
#define KN01_VDAC (2*KN01_SLOT_SIZE)      /* color map */
#define KN01_RES_3      (3*KN01_SLOT_SIZE)      /* unused */
#define KN01_RES_4      (4*KN01_SLOT_SIZE)      /* unused */
#define KN01_RES_5      (5*KN01_SLOT_SIZE)      /* unused */
#define KN01_RES_6      (6*KN01_SLOT_SIZE)      /* unused */
#define KN01_ERRADDR    (7*KN01_SLOT_SIZE)      /* write error address */
#define KN01_LANCE      (8*KN01_SLOT_SIZE)      /* LANCE (Am7990) Ethernet */
#define KN01_LANCE_MEM  (9*KN01_SLOT_SIZE)      /* LANCE buffer memory */
#define KN01_SII  (10*KN01_SLOT_SIZE)     /* SII (DC7061) SCSI */
#define KN01_SII_MEM    (11*KN01_SLOT_SIZE)     /* SII buffer memory */
#define KN01_DZ11 (12*KN01_SLOT_SIZE)     /* DZ11 (DC7085) serial */
#define KN01_RTC  (13*KN01_SLOT_SIZE)     /* DS1287 RTC (bytes #0) */
#define KN01_ESAR (13*KN01_SLOT_SIZE)     /* MAC address (bytes #1) */
#define KN01_CSR  (14*KN01_SLOT_SIZE)     /* system ctrl & status reg */
#define KN01_SYS_ROM    (15*KN01_SLOT_SIZE)     /* system board ROM */


/*
 * Frame buffer memory address.
 */
#define KN01_VFB_MEM    0x0fc00000

/*
 * CPU interrupt bits.
 */
#define KN01_CPU_INR_BUS      6     /* memory, I/O bus read/write errors */
#define KN01_CPU_INR_VIDEO    6     /* PCC area detect #2 */
#define KN01_CPU_INR_RTC      5     /* DS1287 RTC */
#define KN01_CPU_INR_DZ11     4     /* DZ11 (DC7085) serial */
#define KN01_CPU_INR_LANCE    3     /* LANCE (Am7990) Ethernet */
#define KN01_CPU_INR_SII      2     /* SII (DC7061) SCSI */


/*
 * System Control & Status Register bits.
 */
#define KN01_CSR_MNFMOD       (1<<15)     /* MNFMOD manufacturing jumper */
#define KN01_CSR_STATUS       (1<<14)     /* self-test result status output */
#define KN01_CSR_PARDIS       (1<<13)     /* parity error disable */
#define KN01_CSR_CRSRTST      (1<<12)     /* PCC test output */
#define KN01_CSR_MONO         (1<<11)     /* mono/color fb SIMM installed */
#define KN01_CSR_MEMERR       (1<<10)     /* write timeout error status & ack*/
#define KN01_CSR_VINT         (1<<9)      /* PCC area detect #2 status & ack */
#define KN01_CSR_TXDIS        (1<<8)      /* DZ11 transmit disable */
#define KN01_CSR_VBGTRG       (1<<2)      /* blue DAC voltage over green (r/o) */
#define KN01_CSR_VRGTRG       (1<<1)      /* red DAC voltage over green (r/o) */
#define KN01_CSR_VRGTRB       (1<<0)      /* red DAC voltage over blue (r/o) */
#define KN01_CSR_LEDS         (0xff<<0) /* ~diagnostic LEDs (w/o) */


#ifndef __ASSEMBLY__

#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/types.h>

struct pt_regs;

extern u16 cached_kn01_csr;
extern spinlock_t kn01_lock;

extern void dec_kn01_be_init(void);
extern int dec_kn01_be_handler(struct pt_regs *regs, int is_fixup);
extern irqreturn_t dec_kn01_be_interrupt(int irq, void *dev_id);
#endif

#endif /* __ASM_MIPS_DEC_KN01_H */

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