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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMTMS570
*
* @brief This header file provides a TM27 support implementation.
*/
/*
* Copyright (c) 2023 embedded brains GmbH & Co. KG
*
* 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 _RTEMS_TMTEST27
#error "This is an RTEMS internal file you must not include directly."
#endif
#ifndef __tm27_h
#define __tm27_h
#include <rtems.h>
#include <bsp/irq.h>
#include <bsp/tms570.h>
#include <rtems/score/armv4.h>
#define MUST_WAIT_FOR_INTERRUPT 1
#define TM27_INTERRUPT_VECTOR_DEFAULT TMS570_IRQ_TIMER_3
#define TM27_INTERRUPT_VECTOR_ALTERNATIVE TMS570_IRQ_TIMER_1
static inline void Install_tm27_vector( rtems_interrupt_handler handler )
{
static rtems_interrupt_entry entry_2;
static rtems_interrupt_entry entry_3;
TMS570_RTI.CNT[1].CPUCx = 1;
TMS570_RTI.CNT[1].UCx = 0;
TMS570_RTI.CNT[1].FRCx = 0;
TMS570_RTI.CMP[1].COMPx = 1;
TMS570_RTI.CMP[1].UDCPx = 1;
TMS570_RTI.CMP[2].COMPx = 1;
TMS570_RTI.CMP[2].UDCPx = 1;
TMS570_RTI.CMP[3].COMPx = 1;
TMS570_RTI.CMP[3].UDCPx = 1;
TMS570_RTI.COMPCTRL |= TMS570_RTI_COMPCTRL_COMPSEL1 |
TMS570_RTI_COMPCTRL_COMPSEL2 |
TMS570_RTI_COMPCTRL_COMPSEL3;
TMS570_RTI.GCTRL |= TMS570_RTI_GCTRL_CNT1EN;
rtems_interrupt_entry_initialize(
&entry_2,
handler,
NULL,
"tm27"
);
(void) rtems_interrupt_entry_install(
TMS570_IRQ_TIMER_2,
RTEMS_INTERRUPT_SHARED,
&entry_2
);
rtems_interrupt_entry_initialize(
&entry_3,
handler,
NULL,
"tm27"
);
(void) rtems_interrupt_entry_install(
TMS570_IRQ_TIMER_3,
RTEMS_INTERRUPT_SHARED,
&entry_3
);
}
static inline void Cause_tm27_intr(void)
{
TMS570_RTI.SETINTENA = TMS570_RTI_SETINTENA_SETINT3;
}
static inline void Clear_tm27_intr(void)
{
TMS570_RTI.CLEARINTENA = TMS570_RTI_CLEARINTENA_CLEARINT2 |
TMS570_RTI_CLEARINTENA_CLEARINT3;
}
static inline void Lower_tm27_intr(void)
{
TMS570_RTI.SETINTENA = TMS570_RTI_SETINTENA_SETINT2;
(void) _ARMV4_Status_irq_enable();
}
static inline rtems_status_code _TM27_Raise_alternative(void)
{
TMS570_RTI.SETINTENA = TMS570_RTI_SETINTENA_SETINT1;
return RTEMS_SUCCESSFUL;
}
static inline rtems_status_code _TM27_Clear_alternative(void)
{
TMS570_RTI.CLEARINTENA = TMS570_RTI_CLEARINTENA_CLEARINT1;
return RTEMS_SUCCESSFUL;
}
#endif /* __tm27_h */
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