forked from Imagelibrary/rtems
1eed6f8bfc
Pass the parameter of the clock interrupt handler to Clock_driver_support_at_tick() and Clock_driver_timecounter_tick(). This makes it possible to use the interrupt handler argument in clock drivers. Use the interrupt handler provided by Clock_driver_support_install_isr() to avoid local delarations of Clock_isr(). Update #4862.
64 lines
2.5 KiB
C
64 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* COPYRIGHT (c) 1989-2013.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <bsp.h>
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#include <bsp/irq.h>
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#include <bspopts.h>
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/* XXX convert to macros? Move to score/cpu? */
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void mips_set_timer(uint32_t timer_clock_interval);
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uint32_t mips_get_timer(void);
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/* XXX move to BSP.h or irq.h?? */
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#define EXT_INT5 0x8000 /* external interrupt 5 */
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#define CLOCK_VECTOR_MASK EXT_INT5
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#define CLOCK_VECTOR (MIPS_INTERRUPT_BASE+0x7)
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extern uint32_t bsp_clicks_per_microsecond;
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static uint32_t mips_timer_rate = 0;
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/* refresh the internal CPU timer */
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#define Clock_driver_support_at_tick(arg) \
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mips_set_timer( mips_timer_rate );
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#define Clock_driver_support_install_isr( _new ) \
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rtems_interrupt_handler_install(CLOCK_VECTOR, "PIT clock",0, _new, NULL)
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#define Clock_driver_support_initialize_hardware() \
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do { \
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mips_timer_rate = rtems_configuration_get_microseconds_per_tick() * \
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bsp_clicks_per_microsecond; \
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mips_set_timer( mips_timer_rate ); \
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mips_enable_in_interrupt_mask(CLOCK_VECTOR_MASK); \
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} while(0)
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#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER
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#include "../../../shared/dev/clock/clockimpl.h"
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