--- /dev/null
+/*
+ * Copyright (c) 2013 Qualcomm Atheros, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted (subject to the limitations in the
+ * disclaimer below) provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Qualcomm Atheros nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
+ * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
+ * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __ATHOS_API_H__
+#define __ATHOS_API_H__
+
+/*
+ * This file contains wrappers to OS operating system functions
+ * that are available in the Athos version of the operating system.
+ *
+ * Target software must always use these wrappers to access OS
+ * services -- it may not access any OS services directly.
+ *
+ * These wrappers are intended to provide OS-independence for applications.
+ * Using this header file, an application should be able to compile and
+ * fully link without any other OS header files, source files, or
+ * binary files.
+ */
+
+#include <osapi.h>
+#include "dt_defs.h"
+#include "cmnos_api.h"
+#include "Magpie_api.h"
+
+/* ROM Patch API */
+
+/* save the ROM printf function point */
+extern int (* save_cmnos_printf)(const char * fmt, ...);
+
+extern unsigned int _data_start_in_rom;
+extern unsigned int _data_start;
+extern unsigned int _data_end;
+extern unsigned int _bss_start;
+extern unsigned int _bss_end;
+extern unsigned int _stack_sentry;
+extern unsigned int __stack;
+extern unsigned int _fw_image_end;
+
+#if defined(__XTENSA__)
+#define START_DATA _data_start
+#define END_DATA _data_end
+#define START_BSS _bss_start
+#define END_BSS _bss_end
+
+#define STACK_START _stack_sentry
+#define STACK_END __stack
+#endif
+
+struct _A_os_linkage_check {
+ int version;
+ int table;
+};
+
+/*
+ * A_INIT() handles any initialization needed by the OS abstraction,
+ * and it clears the application's BSS, if necessary. (Application BSS
+ * is not cleared if the application is linked into a single image that
+ * includes AthOS.)
+ *
+ * A_INIT() must be called first thing in the application (from app_start)
+ * in order to guarantee that BSS has been cleared properly.
+ */
+static INLINE int
+A_INIT(void)
+{
+ struct _A_os_linkage_check link_check;
+ unsigned int *clrptr;
+
+ if (&START_BSS != _A_MAGPIE_INDIRECTION_TABLE->cmnos.start_bss) {
+ /* Clear BSS */
+ for (clrptr = &START_BSS; clrptr < &END_BSS; clrptr++) {
+ *clrptr = 0;
+ }
+ }
+
+ /* Copy writable data from flash to RAM. */
+ unsigned int *srcptr, *destptr;
+
+ /*
+ * The _data_start symbol points to the start of data IN FLASH.
+ * It is defined by flash.ld at application link time. If flash.ld
+ * is not used, it is defined (on the link line) as 0.
+ */
+ static int *data_start_addr = &_data_start;
+
+ if (data_start_addr != 0) {
+ for (srcptr = &_data_start, destptr = &START_DATA;
+ destptr < &END_DATA;
+ srcptr++, destptr++) {
+ *destptr = *srcptr;
+ }
+ }
+
+#define OS_LINKAGE_VERSION 4
+ link_check.version = OS_LINKAGE_VERSION;
+ link_check.table = _A_MAGPIE_INDIRECTION_TABLE_SIZE;
+
+ return A_CMN(hal_linkage_check(sizeof(link_check), &link_check));
+}
+
+#endif /* __ATHOS_API_H__ */
+
projects / linux-libre-firmware.git / blobdiff