mini/irq.h

/*
	mini - a Free Software replacement for the Nintendo/BroadOn IOS.
	IRQ support

Copyright (C) 2008, 2009	Hector Martin "marcan" <marcan@marcansoft.com>
Copyright (C) 2008, 2009	Sven Peter <svenpeter@gmail.com>

# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/

#ifndef __IRQ_H__
#define __IRQ_H__

#ifdef CAN_HAZ_IRQ
#define IRQ_TIMER	0
#define IRQ_NAND	1
#define IRQ_AES		2
#define IRQ_SHA1	3
#define IRQ_EHCI	4
#define IRQ_OHCI0	5
#define IRQ_OHCI1	6
#define IRQ_SDHC	7
#define IRQ_WIFI	8
#define IRQ_GPIO1B	10
#define IRQ_GPIO1	11
#define IRQ_RESET	17
#define IRQ_PPCIPC	30
#define IRQ_IPC		31

#define IRQF_TIMER	(1<<IRQ_TIMER)
#define IRQF_NAND	(1<<IRQ_NAND)
#define IRQF_AES	(1<<IRQ_AES)
#define IRQF_SDHC	(1<<IRQ_SDHC)
#define IRQF_GPIO1B	(1<<IRQ_GPIO1B)
#define IRQF_GPIO1	(1<<IRQ_GPIO1)
#define IRQF_RESET	(1<<IRQ_RESET)
#define IRQF_IPC	(1<<IRQ_IPC)

#define IRQF_ALL	( \
	IRQF_TIMER|IRQF_NAND|IRQF_GPIO1B|IRQF_GPIO1| \
	IRQF_RESET|IRQF_IPC|IRQF_AES|IRQF_SDHC \
	)

#define CPSR_IRQDIS 0x80
#define CPSR_FIQDIS 0x40

#ifndef _LANGUAGE_ASSEMBLY

#include "types.h"

#define IRQ_ALARM_MS2REG(x)	(1898 * x)

void irq_initialize(void);
void irq_shutdown(void);

void irq_enable(u32 irq);
void irq_disable(u32 irq);

u32 irq_kill(void);
void irq_restore(u32 cookie);

static inline void irq_wait(void)
{
	u32 data = 0;
	__asm__ volatile ( "mcr\tp15, 0, %0, c7, c0, 4" : : "r" (data) );
}

void irq_set_alarm(u32 ms, u8 enable);
#endif

#else
// stub functions allow us to avoid sprinkling other code with ifdefs
static inline u32 irq_kill(void) {
	return 0;
}

static inline void irq_restore(u32 cookie) {
	(void)cookie;
}
#endif

#endif