move sboot to the root directory

[open-ath9k-htc-firmware.git] / sboot / magpie_1_1 / sboot / athos / src / xtos / init.c

diff --git a/sboot/magpie_1_1/sboot/athos/src/xtos/init.c b/sboot/magpie_1_1/sboot/athos/src/xtos/init.c
new file mode 100755 (executable)
index 0000000..065fb08
--- /dev/null
+++ b/sboot/magpie_1_1/sboot/athos/src/xtos/init.c
@@ -0,0 +1,64 @@
+/* init.c - context initialization */
+
+/*
+ * Copyright (c) 1999-2006 Tensilica Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <xtensa/config/core.h>
+#if XCHAL_NUM_CONTEXTS > 1
+#include <stdlib.h>
+#endif
+
+
+
+#if 0 /* XCHAL_NUM_CONTEXTS > 1 */
+extern void    _xtos_setup_context(int context_num, SetupInfo *info);
+extern void    _xtos_start_context(void);
+
+/*
+ *  Sets up a context for running code.
+ *
+ *  Returns PC at which to set the new context, or 0 on error.
+ */
+unsigned       _xtos_init_context(int context_num, int stack_size,
+                                  _xtos_handler_func *start_func, int arg1)
+{
+    SetupInfo info;
+
+    /*  Allocate stack:  */
+    char *sp;
+    char *stack = malloc(stack_size);
+    if (stack == NULL)
+       return 0;
+
+    /*  Setup stack for call8:  */
+    sp = stack + stack_size - 16;
+    *(unsigned*)(sp - 12) = (unsigned)(sp + 32);
+
+    info.sp = (unsigned)sp;
+    info.funcpc = (unsigned)start_func;
+    info.arg1 = arg1;
+    _xtos_setup_context(context_num, &info);
+    return (unsigned) &_xtos_start_context;
+}
+#endif /* multiple contexts */
+