#pragma once

/*
 *   This file is part of fastboot 3DS
 *   Copyright (C) 2017 derrek, profi200
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "arm.h"
#include "types.h"


typedef enum
{
	IRQ_DMAC_1_0      =  0u, // DMAC_1 =  NDMA
	IRQ_DMAC_1_1      =  1u,
	IRQ_DMAC_1_2      =  2u,
	IRQ_DMAC_1_3      =  3u,
	IRQ_DMAC_1_4      =  4u,
	IRQ_DMAC_1_5      =  5u,
	IRQ_DMAC_1_6      =  6u,
	IRQ_DMAC_1_7      =  7u,
	IRQ_TIMER_0       =  8u,
	IRQ_TIMER_1       =  9u,
	IRQ_TIMER_2       = 10u,
	IRQ_TIMER_3       = 11u,
	IRQ_PXI_SYNC      = 12u,
	IRQ_PXI_NOT_FULL  = 13u,
	IRQ_PXI_NOT_EMPTY = 14u,
	IRQ_AES           = 15u,
	IRQ_SDIO_1        = 16u,
	IRQ_SDIO_1_ASYNC  = 17u,
	IRQ_SDIO_3        = 18u,
	IRQ_SDIO_3_ASYNC  = 19u,
	IRQ_DEBUG_RECV    = 20u,
	IRQ_DEBUG_SEND    = 21u,
	IRQ_RSA           = 22u,
	IRQ_CTR_CARD_1    = 23u, // SPICARD and CTRCARD too?
	IRQ_CTR_CARD_2    = 24u,
	IRQ_CGC           = 25u,
	IRQ_CGC_DET       = 26u,
	IRQ_DS_CARD       = 27u,
	IRQ_DMAC_2        = 28u,
	IRQ_DMAC_2_ABORT  = 29u
} Interrupt;


// IRQ handler type.
// id: contains the interrupt ID
typedef void (*IrqHandler)(u32 id);



/**
 * @brief      Initializes interrupts.
 */
void IRQ_init(void);

/**
 * @brief      Registers a interrupt handler and enables the specified interrupt.
 *
 * @param[in]  id       The interrupt ID. Must be <32.
 * @param[in]  handler  The interrupt handler to call.
 */
void IRQ_registerHandler(Interrupt id, IrqHandler handler);

/**
 * @brief      Unregisters the interrupt handler and disables the specified interrupt.
 *
 * @param[in]  id    The interrupt ID. Must be <32.
 */
void IRQ_unregisterHandler(Interrupt id);


static inline u32 enterCriticalSection(void)
{
	u32 tmp;
	__setCpsr_c((tmp = __getCpsr()) | PSR_I);
	return tmp & PSR_I;
}

static inline void leaveCriticalSection(u32 oldState)
{
	__setCpsr_c((__getCpsr() & ~PSR_I) | oldState);
}