1 files changed, 107 insertions, 0 deletions
diff --git a/bsps/powerpc/gen5200/start/bestcomm.c b/bsps/powerpc/gen5200/start/bestcomm.c
new file mode 100644
index 0000000000..ef59adcfd8
--- /dev/null
+++ b/bsps/powerpc/gen5200/start/bestcomm.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2010-2013 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#define NDEBUG
+
+#include <bsp/bestcomm.h>
+
+#include <string.h>
+
+#include <bsp/mpc5200.h>
+
+static void bestcomm_irq_handler(void *arg)
+{
+  bestcomm_irq *self = arg;
+
+  bestcomm_irq_clear(self);
+  bestcomm_irq_wakeup_event_task(self);
+}
+
+void bestcomm_irq_create(bestcomm_irq *self, int task_index)
+{
+  assert(task_index >= 0 && task_index <= 15);
+
+  self->task_index = task_index;
+  self->event_task_id = rtems_task_self();
+  bestcomm_glue_irq_install(task_index, bestcomm_irq_handler, self);
+}
+
+void bestcomm_irq_destroy(const bestcomm_irq *self)
+{
+  bestcomm_glue_irq_install(self->task_index, NULL, NULL);
+}
+
+void bestcomm_task_create(bestcomm_task *self, TaskId task_index)
+{
+  self->task_control_register = &mpc5200.sdma.tcr[task_index];
+  self->variable_table = BESTCOMM_TASK_ENTRY_TABLE[task_index].var_table;
+  self->task_index = task_index;
+  self->tdt_begin = NULL;
+  self->tdt_opcode_count = 0;
+  bestcomm_task_stop(self);
+  bestcomm_irq_create(&self->irq, task_index);
+}
+
+void bestcomm_task_create_and_load(
+  bestcomm_task *self,
+  TaskId task_index,
+  const uint32_t *tdt_source_begin,
+  size_t tdt_size
+)
+{
+  bestcomm_task_create(self, task_index);
+  bestcomm_task_load(self, tdt_source_begin, tdt_size);
+}
+
+void bestcomm_task_destroy(bestcomm_task *self)
+{
+  bestcomm_task_stop(self);
+  bestcomm_task_free_tdt(self);
+}
+
+void bestcomm_task_load(bestcomm_task *self, const uint32_t *tdt_source_begin, size_t tdt_size)
+{
+  assert(tdt_size % 4 == 0);
+
+  bestcomm_task_irq_disable(self);
+  bestcomm_task_stop(self);
+  bestcomm_task_irq_clear(self);
+  bestcomm_task_irq_enable(self);
+  bestcomm_task_free_tdt(self);
+  bestcomm_task_clear_variables(self);
+
+  self->tdt_opcode_count = tdt_size / 4;
+
+  self->tdt_begin = bestcomm_malloc(tdt_size);
+  assert(self->tdt_begin != NULL);
+  uint32_t *tdt_last = self->tdt_begin + self->tdt_opcode_count - 1;
+
+  memcpy(self->tdt_begin, tdt_source_begin, tdt_size);
+
+  volatile bestcomm_task_entry *entry = bestcomm_task_get_task_entry(self);
+  entry->tdt_begin = self->tdt_begin;
+  entry->tdt_last = tdt_last;
+
+  bestcomm_task_clear_pragmas(self);
+  bestcomm_task_set_priority(self, 0);
+}
+
+void bestcomm_task_clear_variables(const bestcomm_task *self)
+{
+  int i;
+
+  for (i = 0; i < 32; ++i) {
+    (*self->variable_table)[i] = 0;
+  }
+}