Initial import

Code is based on FreeBSD 8.2 with USB support from Sebastian Huber
and Thomas Doerfler. Initial TCP/IP stack work is from Kevel Kirspel.

1 files changed, 208 insertions, 0 deletions

diff --git a/rtems/freebsd/rtems/rtems-bsd-thread.c b/rtems/freebsd/rtems/rtems-bsd-thread.c
new file mode 100644
index 00000000..92bf79c0
--- /dev/null
+++ b/rtems/freebsd/rtems/rtems-bsd-thread.c
@@ -0,0 +1,208 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd_rtems
+ *
+ * @brief TODO.
+ */
+
+/*
+ * Copyright (c) 2009, 2010 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  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.com/license/LICENSE.
+ */
+
+#include <rtems/freebsd/machine/rtems-bsd-config.h>
+
+#include <rtems/freebsd/sys/param.h>
+#include <rtems/freebsd/sys/types.h>
+#include <rtems/freebsd/sys/systm.h>
+#include <rtems/freebsd/sys/proc.h>
+#include <rtems/freebsd/sys/kthread.h>
+#include <rtems/freebsd/sys/malloc.h>
+
+RTEMS_CHAIN_DEFINE_EMPTY(rtems_bsd_thread_chain);
+
+static int
+rtems_bsd_thread_start(struct thread **td_ptr, void (*func)(void *), void *arg, int flags, int pages, const char *fmt, va_list ap)
+{
+  struct proc *p = &proc0;;
+	struct thread *td = malloc(sizeof(struct thread), M_TEMP, M_WAITOK | M_ZERO);
+
+	if (td != NULL) {
+		rtems_status_code sc = RTEMS_SUCCESSFUL;
+		rtems_id id = RTEMS_ID_NONE;
+		unsigned index = 0;
+		char name [5] = "_???";
+
+		BSD_ASSERT(pages >= 0);
+
+		sc = rtems_task_create(
+			rtems_build_name('_', 'T', 'S', 'K'),
+			BSD_TASK_PRIORITY_NORMAL,
+			BSD_MINIMUM_TASK_STACK_SIZE + (size_t) pages * PAGE_SIZE,
+			RTEMS_DEFAULT_ATTRIBUTES,
+			RTEMS_DEFAULT_ATTRIBUTES,
+			&id
+		);
+		if (sc != RTEMS_SUCCESSFUL) {
+			free(td, M_TEMP);
+
+			return ENOMEM;
+		}
+
+    sc = rtems_task_set_note( id, RTEMS_NOTEPAD_0, ( uint32_t )td );
+    if (sc != RTEMS_SUCCESSFUL) {
+      free(td, M_TEMP);
+
+      return ENOMEM;
+    }
+
+		index = rtems_object_id_get_index(id);
+		snprintf(name + 1, sizeof(name) - 1, "%03u", index);
+		sc = rtems_object_set_name(id, name);
+		if (sc != RTEMS_SUCCESSFUL) {
+			rtems_task_delete(id);
+			free(td, M_TEMP);
+
+			return ENOMEM;
+		}
+
+		sc = rtems_task_start(id, (rtems_task_entry) func, (rtems_task_argument) arg);
+		if (sc != RTEMS_SUCCESSFUL) {
+			rtems_task_delete(id);
+			free(td, M_TEMP);
+
+			return ENOMEM;
+		}
+
+		td->td_id = id;
+		vsnprintf(td->td_name, sizeof(td->td_name), fmt, ap);
+    bzero(&td->td_ru, sizeof(td->td_ru));
+    td->td_ucred = crhold(p->p_ucred);
+    td->td_proc = p;
+
+		rtems_chain_append(&rtems_bsd_thread_chain, &td->td_node);
+
+		if (td_ptr != NULL) {
+			*td_ptr = td;
+		}
+
+		return 0;
+	}
+
+	return ENOMEM;
+}
+
+static void rtems_bsd_thread_delete(void) __dead2;
+
+static void
+rtems_bsd_thread_delete(void)
+{
+	rtems_chain_control *chain = &rtems_bsd_thread_chain;
+	rtems_chain_node *node = rtems_chain_first(chain);
+	rtems_id id = rtems_task_self();
+	struct thread *td = NULL;
+
+	while (!rtems_chain_is_tail(chain, node)) {
+		struct thread *cur = (struct thread *) node;
+
+		if (cur->td_id == id) {
+			td = cur;
+			break;
+		}
+
+		node = rtems_chain_next(node);
+	}
+
+	if (td != NULL) {
+		rtems_chain_extract(&td->td_node);
+
+		free(td, M_TEMP);
+	} else {
+		BSD_PANIC("cannot find task entry");
+	}
+
+	rtems_task_delete(RTEMS_SELF);
+
+	while (true) {
+		/* Do nothing */
+	}
+}
+
+void
+kproc_start(const void *udata)
+{
+	const struct kproc_desc	*pd = udata;
+	int eno = kproc_create((void (*)(void *))pd->func, NULL, pd->global_procpp, 0, 0, "%s", pd->arg0);
+
+	BSD_ASSERT(eno == 0);
+}
+
+int
+kproc_create(void (*func)(void *), void *arg, struct proc **newpp, int flags, int pages, const char *fmt, ...)
+{
+	int eno = 0;
+	va_list ap;
+
+	va_start(ap, fmt);
+	eno = rtems_bsd_thread_start(newpp, func, arg, flags, pages, fmt, ap);
+	va_end(ap);
+
+	return eno;
+}
+
+void
+kproc_exit(int ecode)
+{
+	rtems_bsd_thread_delete();
+}
+
+void
+kthread_start(const void *udata)
+{
+	const struct kthread_desc *td = udata;
+	int eno = kthread_add((void (*)(void *)) td->func, NULL, NULL, td->global_threadpp, 0, 0, "%s", td->arg0);
+
+	BSD_ASSERT(eno == 0);
+}
+
+int
+kthread_add(void (*func)(void *), void *arg, struct proc *p, struct thread **newtdp, int flags, int pages, const char *fmt, ...)
+{
+	int eno = 0;
+	va_list ap;
+
+	va_start(ap, fmt);
+	eno = rtems_bsd_thread_start(newtdp, func, arg, flags, pages, fmt, ap);
+	va_end(ap);
+
+	return eno;
+}
+
+void
+kthread_exit(void)
+{
+	rtems_bsd_thread_delete();
+}
+
+int
+kproc_kthread_add(void (*func)(void *), void *arg, struct proc **procptr, struct thread **tdptr, int flags, int pages, const char * procname, const char *fmt, ...)
+{
+	int eno = 0;
+	va_list ap;
+
+	va_start(ap, fmt);
+	eno = rtems_bsd_thread_start(tdptr, func, arg, flags, pages, fmt, ap);
+	va_end(ap);
+
+	return eno;
+}