--- bsps/arm/tms570/include/tm27.h | 129 ++++++++++++++++++++++++++++++++- 1 file changed, 128 insertions(+), 1 deletion(-)
diff --git a/bsps/arm/tms570/include/tm27.h b/bsps/arm/tms570/include/tm27.h index 0dfa7bf628..a8ca08a0dd 100644 --- a/bsps/arm/tms570/include/tm27.h +++ b/bsps/arm/tms570/include/tm27.h @@ -1 +1,128 @@ -#include <rtems/tm27-default.h> +/* 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 */ -- 2.35.3 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel