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/*
* Raspberry Pi emulation (c) 2012 Gregory Estrade
* Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
*
* Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
* Written by Andrew Baumann
*
* ARM Local Timer IRQ Copyright (c) 2019. Zoltán Baldaszti
* Added basic IRQ_TIMER interrupt support
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef BCM2836_CONTROL_H
#define BCM2836_CONTROL_H
#include "hw/sysbus.h"
#include "qemu/timer.h"
#include "qom/object.h"
/* 4 mailboxes per core, for 16 total */
#define BCM2836_NCORES 4
#define BCM2836_MBPERCORE 4
#define TYPE_BCM2836_CONTROL "bcm2836-control"
typedef struct BCM2836ControlState BCM2836ControlState;
#define BCM2836_CONTROL(obj) \
OBJECT_CHECK(BCM2836ControlState, (obj), TYPE_BCM2836_CONTROL)
struct BCM2836ControlState {
/*< private >*/
SysBusDevice busdev;
/*< public >*/
MemoryRegion iomem;
/* mailbox state */
uint32_t mailboxes[BCM2836_NCORES * BCM2836_MBPERCORE];
/* interrupt routing/control registers */
uint8_t route_gpu_irq, route_gpu_fiq;
uint32_t timercontrol[BCM2836_NCORES];
uint32_t mailboxcontrol[BCM2836_NCORES];
/* interrupt status regs (derived from input pins; not visible to user) */
bool gpu_irq, gpu_fiq;
uint8_t timerirqs[BCM2836_NCORES];
/* local timer */
QEMUTimer timer;
uint32_t local_timer_control;
uint8_t route_localtimer;
/* interrupt source registers, post-routing (also input-derived; visible) */
uint32_t irqsrc[BCM2836_NCORES];
uint32_t fiqsrc[BCM2836_NCORES];
/* outputs to CPU cores */
qemu_irq irq[BCM2836_NCORES];
qemu_irq fiq[BCM2836_NCORES];
};
#endif
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