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ip22.h

/*
 * 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.
 *
 * ip22.h: Definitions for SGI IP22 machines
 *
 * Copyright (C) 1996 David S. Miller
 * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
 */

#ifndef _SGI_IP22_H
#define _SGI_IP22_H

/*
 * These are the virtual IRQ numbers, we divide all IRQ's into
 * 'spaces', the 'space' determines where and how to enable/disable
 * that particular IRQ on an SGI machine. HPC DMA and MC DMA interrupts
 * are not supported this way. Driver is supposed to allocate HPC/MC
 * interrupt as shareable and then look to proper status bit (see
 * HAL2 driver). This will prevent many complications, trust me ;-)
 */

#include <irq.h>
#include <asm/sgi/ioc.h>

#define SGINT_EISA      0     /* 16 EISA irq levels (Indigo2) */
#define SGINT_CPU MIPS_CPU_IRQ_BASE /* MIPS CPU define 8 interrupt sources */
#define SGINT_LOCAL0    (SGINT_CPU+8)     /* 8 local0 irq levels */
#define SGINT_LOCAL1    (SGINT_CPU+16)    /* 8 local1 irq levels */
#define SGINT_LOCAL2    (SGINT_CPU+24)    /* 8 local2 vectored irq levels */
#define SGINT_LOCAL3    (SGINT_CPU+32)    /* 8 local3 vectored irq levels */
#define SGINT_END (SGINT_CPU+40)    /* End of 'spaces' */

/*
 * Individual interrupt definitions for the Indy and Indigo2
 */

#define SGI_SOFT_0_IRQ  SGINT_CPU + 0
#define SGI_SOFT_1_IRQ  SGINT_CPU + 1
#define SGI_LOCAL_0_IRQ SGINT_CPU + 2
#define SGI_LOCAL_1_IRQ SGINT_CPU + 3
#define SGI_8254_0_IRQ  SGINT_CPU + 4
#define SGI_8254_1_IRQ  SGINT_CPU + 5
#define SGI_BUSERR_IRQ  SGINT_CPU + 6
#define SGI_TIMER_IRQ   SGINT_CPU + 7

#define SGI_FIFO_IRQ    SGINT_LOCAL0 + 0  /* FIFO full */
#define SGI_GIO_0_IRQ   SGI_FIFO_IRQ            /* GIO-0 */
#define SGI_WD93_0_IRQ  SGINT_LOCAL0 + 1  /* 1st onboard WD93 */
#define SGI_WD93_1_IRQ  SGINT_LOCAL0 + 2  /* 2nd onboard WD93 */
#define SGI_ENET_IRQ    SGINT_LOCAL0 + 3  /* onboard ethernet */
#define SGI_MCDMA_IRQ   SGINT_LOCAL0 + 4  /* MC DMA done */
#define SGI_PARPORT_IRQ SGINT_LOCAL0 + 5  /* Parallel port */
#define SGI_GIO_1_IRQ   SGINT_LOCAL0 + 6  /* GE / GIO-1 / 2nd-HPC */
#define SGI_MAP_0_IRQ   SGINT_LOCAL0 + 7  /* Mappable interrupt 0 */

#define SGI_GPL0_IRQ    SGINT_LOCAL1 + 0  /* General Purpose LOCAL1_N<0> */
#define SGI_PANEL_IRQ   SGINT_LOCAL1 + 1  /* front panel */
#define SGI_GPL2_IRQ    SGINT_LOCAL1 + 2  /* General Purpose LOCAL1_N<2> */
#define SGI_MAP_1_IRQ   SGINT_LOCAL1 + 3  /* Mappable interrupt 1 */
#define SGI_HPCDMA_IRQ  SGINT_LOCAL1 + 4  /* HPC DMA done */
#define SGI_ACFAIL_IRQ  SGINT_LOCAL1 + 5  /* AC fail */
#define SGI_VINO_IRQ    SGINT_LOCAL1 + 6  /* Indy VINO */
#define SGI_GIO_2_IRQ   SGINT_LOCAL1 + 7  /* Vert retrace / GIO-2 */

/* Mapped interrupts. These interrupts may be mapped to either 0, or 1 */
#define SGI_VERT_IRQ    SGINT_LOCAL2 + 0  /* INT3: newport vertical status */
#define SGI_EISA_IRQ    SGINT_LOCAL2 + 3  /* EISA interrupts */
#define SGI_KEYBD_IRQ   SGINT_LOCAL2 + 4  /* keyboard */
#define SGI_SERIAL_IRQ  SGINT_LOCAL2 + 5  /* onboard serial */

#define ip22_is_fullhouse()   (sgioc->sysid & SGIOC_SYSID_FULLHOUSE)

extern unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg);
extern unsigned short ip22_nvram_read(int reg);

#endif

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