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/* $OpenBSD: bonito_irq.h,v 1.1 2010/02/05 20:51:22 miod Exp $ */
/*
* Copyright (c) 2009, 2010 Miodrag Vallat.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Bonito interrupt assignments
*/
#define LOONGSON_INTR_GPIO0 0
#define LOONGSON_INTR_GPIO1 1
#define LOONGSON_INTR_GPIO2 2
#define LOONGSON_INTR_GPIO3 3
/* pci interrupts */
#define LOONGSON_INTR_PCIA 4
#define LOONGSON_INTR_PCIB 5
#define LOONGSON_INTR_PCIC 6
#define LOONGSON_INTR_PCID 7
#define LOONGSON_INTR_PCI_PARERR 8
#define LOONGSON_INTR_PCI_SYSERR 9
#define LOONGSON_INTR_DRAM_PARERR 10
/* non-PCI interrupts */
#define LOONGSON_INTR_INT0 11
#define LOONGSON_INTR_INT1 12
#define LOONGSON_INTR_INT2 13
#define LOONGSON_INTR_INT3 14
#define LOONGSON_INTRMASK_GPIO0 0x00000001 /* can't interrupt */
#define LOONGSON_INTRMASK_GPIO1 0x00000002
#define LOONGSON_INTRMASK_GPIO2 0x00000004
#define LOONGSON_INTRMASK_GPIO3 0x00000008
#define LOONGSON_INTRMASK_GPIO 0x0000000f
/* pci interrupts */
#define LOONGSON_INTRMASK_PCIA 0x00000010
#define LOONGSON_INTRMASK_PCIB 0x00000020
#define LOONGSON_INTRMASK_PCIC 0x00000040
#define LOONGSON_INTRMASK_PCID 0x00000080
#define LOONGSON_INTRMASK_PCI_PARERR 0x00000100
#define LOONGSON_INTRMASK_PCI_SYSERR 0x00000200
#define LOONGSON_INTRMASK_DRAM_PARERR 0x00000400
/* non-PCI interrupts */
#define LOONGSON_INTRMASK_INT0 0x00000800
#define LOONGSON_INTRMASK_INT1 0x00001000
#define LOONGSON_INTRMASK_INT2 0x00002000
#define LOONGSON_INTRMASK_INT3 0x00004000
#define LOONGSON_INTRMASK_LVL0 0x00007800 /* not maskable in bonito */
#define LOONGSON_INTRMASK_LVL4 0x000007ff
/*
* Bonito interrupt handling recipes:
* - we have 14 interrupts on Bonito
* - on the Yeeloong, there are also 16 (well, 15) ISA interrupts with the
* usual 8259 pair. Bonito and ISA interrupts happen on two different levels.
*
* For simplicity we allocate 16 vectors for direct interrupts, and 16
* vectors for ISA interrupts as well (which will only be used if we are
* running on a Yeeloong).
*/
#define INTPRI_BONITO (INTPRI_CLOCK + 1)
#define INTPRI_ISA (INTPRI_BONITO + 1)
#define BONITO_NDIRECT 16
#define BONITO_NISA 16
#define BONITO_NINTS (BONITO_NDIRECT + BONITO_NISA)
#define BONITO_ISA_IRQ(i) ((i) + BONITO_NDIRECT)
#define BONITO_DIRECT_IRQ(i) (i)
#define BONITO_IRQ_IS_ISA(i) ((i) >= BONITO_NDIRECT)
#define BONITO_DIRECT_MASK(imask) ((imask) & ((1 << BONITO_NDIRECT) - 1))
#define BONITO_ISA_MASK(imask) ((imask) >> BONITO_NDIRECT)
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