forked from Imagelibrary/rtems
9964895866
Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285.
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
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* Copyright (c) 2010-2013 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#define NDEBUG
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#include <bsp/bestcomm.h>
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#include <string.h>
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#include <bsp/mpc5200.h>
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static void bestcomm_irq_handler(void *arg)
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{
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bestcomm_irq *self = arg;
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bestcomm_irq_clear(self);
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bestcomm_irq_wakeup_event_task(self);
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}
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void bestcomm_irq_create(bestcomm_irq *self, int task_index)
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{
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assert(task_index >= 0 && task_index <= 15);
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self->task_index = task_index;
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self->event_task_id = rtems_task_self();
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bestcomm_glue_irq_install(task_index, bestcomm_irq_handler, self);
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}
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void bestcomm_irq_destroy(const bestcomm_irq *self)
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{
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bestcomm_glue_irq_install(self->task_index, NULL, NULL);
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}
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void bestcomm_task_create(bestcomm_task *self, TaskId task_index)
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{
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self->task_control_register = &mpc5200.sdma.tcr[task_index];
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self->variable_table = BESTCOMM_TASK_ENTRY_TABLE[task_index].var_table;
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self->task_index = task_index;
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self->tdt_begin = NULL;
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self->tdt_opcode_count = 0;
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bestcomm_task_stop(self);
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bestcomm_irq_create(&self->irq, task_index);
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}
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void bestcomm_task_create_and_load(
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bestcomm_task *self,
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TaskId task_index,
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const uint32_t *tdt_source_begin,
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size_t tdt_size
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)
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{
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bestcomm_task_create(self, task_index);
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bestcomm_task_load(self, tdt_source_begin, tdt_size);
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}
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void bestcomm_task_destroy(bestcomm_task *self)
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{
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bestcomm_task_stop(self);
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bestcomm_task_free_tdt(self);
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}
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void bestcomm_task_load(bestcomm_task *self, const uint32_t *tdt_source_begin, size_t tdt_size)
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{
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assert(tdt_size % 4 == 0);
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bestcomm_task_irq_disable(self);
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bestcomm_task_stop(self);
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bestcomm_task_irq_clear(self);
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bestcomm_task_irq_enable(self);
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bestcomm_task_free_tdt(self);
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bestcomm_task_clear_variables(self);
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self->tdt_opcode_count = tdt_size / 4;
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self->tdt_begin = bestcomm_malloc(tdt_size);
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assert(self->tdt_begin != NULL);
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uint32_t *tdt_last = self->tdt_begin + self->tdt_opcode_count - 1;
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memcpy(self->tdt_begin, tdt_source_begin, tdt_size);
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volatile bestcomm_task_entry *entry = bestcomm_task_get_task_entry(self);
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entry->tdt_begin = self->tdt_begin;
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entry->tdt_last = tdt_last;
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bestcomm_task_clear_pragmas(self);
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bestcomm_task_set_priority(self, 0);
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}
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void bestcomm_task_clear_variables(const bestcomm_task *self)
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{
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int i;
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for (i = 0; i < 32; ++i) {
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(*self->variable_table)[i] = 0;
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}
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}
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