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/* linux/arch/arm/plat-samsung/include/plat/irqs.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P Common IRQ support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __PLAT_SAMSUNG_IRQS_H
#define __PLAT_SAMSUNG_IRQS_H __FILE__
/* we keep the first set of CPU IRQs out of the range of
* the ISA space, so that the PC104 has them to itself
* and we don't end up having to do horrible things to the
* standard ISA drivers....
*
* note, since we're using the VICs, our start must be a
* mulitple of 32 to allow the common code to work
*/
#define S5P_IRQ_OFFSET (32)
#define S5P_IRQ(x) ((x) + S5P_IRQ_OFFSET)
#define S5P_VIC0_BASE S5P_IRQ(0)
#define S5P_VIC1_BASE S5P_IRQ(32)
#define S5P_VIC2_BASE S5P_IRQ(64)
#define S5P_VIC3_BASE S5P_IRQ(96)
#define VIC_BASE(x) (S5P_VIC0_BASE + ((x)*32))
#define IRQ_VIC0_BASE S5P_VIC0_BASE
#define IRQ_VIC1_BASE S5P_VIC1_BASE
#define IRQ_VIC2_BASE S5P_VIC2_BASE
/* VIC based IRQs */
#define S5P_IRQ_VIC0(x) (S5P_VIC0_BASE + (x))
#define S5P_IRQ_VIC1(x) (S5P_VIC1_BASE + (x))
#define S5P_IRQ_VIC2(x) (S5P_VIC2_BASE + (x))
#define S5P_IRQ_VIC3(x) (S5P_VIC3_BASE + (x))
#define IRQ_EINT(x) ((x) < 16 ? ((x) + S5P_EINT_BASE1) \
: ((x) - 16 + S5P_EINT_BASE2))
#define EINT_OFFSET(irq) ((irq) < S5P_EINT_BASE2 ? \
((irq) - S5P_EINT_BASE1) : \
((irq) + 16 - S5P_EINT_BASE2))
#define IRQ_EINT_BIT(x) EINT_OFFSET(x)
/* Typically only a few gpio chips require gpio interrupt support.
To avoid memory waste irq descriptors are allocated only for
S5P_GPIOINT_GROUP_COUNT chips, each with total number of
S5P_GPIOINT_GROUP_SIZE pins/irqs. Each GPIOINT group can be assiged
to any gpio chip with the s5p_register_gpio_interrupt() function */
#define S5P_GPIOINT_GROUP_COUNT 4
#define S5P_GPIOINT_GROUP_SIZE 8
#define S5P_GPIOINT_COUNT (S5P_GPIOINT_GROUP_COUNT * S5P_GPIOINT_GROUP_SIZE)
/* IRQ types common for all s5p platforms */
#define S5P_IRQ_TYPE_LEVEL_LOW (0x00)
#define S5P_IRQ_TYPE_LEVEL_HIGH (0x01)
#define S5P_IRQ_TYPE_EDGE_FALLING (0x02)
#define S5P_IRQ_TYPE_EDGE_RISING (0x03)
#define S5P_IRQ_TYPE_EDGE_BOTH (0x04)
#endif /* __PLAT_SAMSUNG_IRQS_H */
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