1 /* linux/arch/arm/plat-samsung/include/plat/irqs.h 2 * 3 * Copyright (c) 2009 Samsung Electronics Co., Ltd. 4 * http://www.samsung.com/ 5 * 6 * S5P Common IRQ support 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #ifndef __PLAT_SAMSUNG_IRQS_H 14 #define __PLAT_SAMSUNG_IRQS_H __FILE__ 15 16 /* we keep the first set of CPU IRQs out of the range of 17 * the ISA space, so that the PC104 has them to itself 18 * and we don't end up having to do horrible things to the 19 * standard ISA drivers.... 20 * 21 * note, since we're using the VICs, our start must be a 22 * mulitple of 32 to allow the common code to work 23 */ 24 25 #define S5P_IRQ_OFFSET (32) 26 27 #define S5P_IRQ(x) ((x) + S5P_IRQ_OFFSET) 28 29 #define S5P_VIC0_BASE S5P_IRQ(0) 30 #define S5P_VIC1_BASE S5P_IRQ(32) 31 #define S5P_VIC2_BASE S5P_IRQ(64) 32 #define S5P_VIC3_BASE S5P_IRQ(96) 33 34 #define VIC_BASE(x) (S5P_VIC0_BASE + ((x)*32)) 35 36 #define IRQ_VIC0_BASE S5P_VIC0_BASE 37 #define IRQ_VIC1_BASE S5P_VIC1_BASE 38 #define IRQ_VIC2_BASE S5P_VIC2_BASE 39 40 /* VIC based IRQs */ 41 42 #define S5P_IRQ_VIC0(x) (S5P_VIC0_BASE + (x)) 43 #define S5P_IRQ_VIC1(x) (S5P_VIC1_BASE + (x)) 44 #define S5P_IRQ_VIC2(x) (S5P_VIC2_BASE + (x)) 45 #define S5P_IRQ_VIC3(x) (S5P_VIC3_BASE + (x)) 46 47 #define S5P_TIMER_IRQ(x) (IRQ_TIMER_BASE + (x)) 48 49 #define IRQ_TIMER0 S5P_TIMER_IRQ(0) 50 #define IRQ_TIMER1 S5P_TIMER_IRQ(1) 51 #define IRQ_TIMER2 S5P_TIMER_IRQ(2) 52 #define IRQ_TIMER3 S5P_TIMER_IRQ(3) 53 #define IRQ_TIMER4 S5P_TIMER_IRQ(4) 54 #define IRQ_TIMER_COUNT (5) 55 56 #define IRQ_EINT(x) ((x) < 16 ? ((x) + S5P_EINT_BASE1) \ 57 : ((x) - 16 + S5P_EINT_BASE2)) 58 59 #define EINT_OFFSET(irq) ((irq) < S5P_EINT_BASE2 ? \ 60 ((irq) - S5P_EINT_BASE1) : \ 61 ((irq) + 16 - S5P_EINT_BASE2)) 62 63 #define IRQ_EINT_BIT(x) EINT_OFFSET(x) 64 65 /* Typically only a few gpio chips require gpio interrupt support. 66 To avoid memory waste irq descriptors are allocated only for 67 S5P_GPIOINT_GROUP_COUNT chips, each with total number of 68 S5P_GPIOINT_GROUP_SIZE pins/irqs. Each GPIOINT group can be assiged 69 to any gpio chip with the s5p_register_gpio_interrupt() function */ 70 #define S5P_GPIOINT_GROUP_COUNT 4 71 #define S5P_GPIOINT_GROUP_SIZE 8 72 #define S5P_GPIOINT_COUNT (S5P_GPIOINT_GROUP_COUNT * S5P_GPIOINT_GROUP_SIZE) 73 74 /* IRQ types common for all s5p platforms */ 75 #define S5P_IRQ_TYPE_LEVEL_LOW (0x00) 76 #define S5P_IRQ_TYPE_LEVEL_HIGH (0x01) 77 #define S5P_IRQ_TYPE_EDGE_FALLING (0x02) 78 #define S5P_IRQ_TYPE_EDGE_RISING (0x03) 79 #define S5P_IRQ_TYPE_EDGE_BOTH (0x04) 80 81 #endif /* __PLAT_SAMSUNG_IRQS_H */ 82