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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup sparc_leon3
*
* @brief This header file provides interfaces used by the BSP implementation.
*/
/*
* Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _BSP_LEON3_H
#define _BSP_LEON3_H
#include <rtems.h>
#include <grlib/grlib.h>
#include <grlib/apbuart-regs.h>
struct ambapp_dev;
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup sparc_leon3
*
* @{
*/
/**
* @brief This lock serializes the interrupt controller access.
*/
extern rtems_interrupt_lock LEON3_IrqCtrl_Lock;
/**
* @brief This pointer provides the IRQ(A)MP register block address.
*/
extern volatile struct irqmp_regs *LEON3_IrqCtrl_Regs;
/**
* @brief This pointer provides the IRQ(A)MP device information block.
*/
extern struct ambapp_dev *LEON3_IrqCtrl_Adev;
/**
* @brief This object provides the interrupt number used to multiplex extended
* interrupts or is zero if no extended interrupts are available.
*
* This object should be read-only after initialization.
*/
extern uint32_t LEON3_IrqCtrl_EIrq;
/**
* @brief Initializes the interrupt controller for the boot processor.
*
* @param[in, out] regs is the IRQ(A)MP register block address.
*/
void leon3_ext_irq_init( volatile struct irqmp_regs *regs );
/**
* @brief Acknowledges and maps extended interrupts if this feature is
* available and the interrupt for extended interrupts is present.
*
* @param irq is the standard interrupt number.
*/
static inline uint32_t bsp_irq_fixup( uint32_t irq )
{
uint32_t eirq;
if ( irq != LEON3_IrqCtrl_EIrq ) {
return irq;
}
eirq = LEON3_IrqCtrl_Regs->intid[ _LEON3_Get_current_processor() ] & 0x1f;
if ( eirq < 16 ) {
return irq;
}
return eirq;
}
/**
* @brief This pointer provides the debug APBUART register block address.
*/
extern apbuart *leon3_debug_uart;
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* _BSP_LEON3_H */
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