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-rw-r--r--nuttx/arch/arm/include/armv7-m/syscall.h243
1 files changed, 243 insertions, 0 deletions
diff --git a/nuttx/arch/arm/include/armv7-m/syscall.h b/nuttx/arch/arm/include/armv7-m/syscall.h
new file mode 100644
index 0000000000..4c7b843021
--- /dev/null
+++ b/nuttx/arch/arm/include/armv7-m/syscall.h
@@ -0,0 +1,243 @@
+/****************************************************************************
+ * arch/arm/include/armv7-m/syscall.h
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/* This file should never be included directed but, rather, only indirectly
+ * through include/syscall.h or include/sys/sycall.h
+ */
+
+#ifndef __ARCH_ARM_INCLUDE_ARMV7_M_SYSCALL_H
+#define __ARCH_ARM_INCLUDE_ARMV7_M_SYSCALL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+
+/****************************************************************************
+ * Pro-processor Definitions
+ ****************************************************************************/
+
+#define SYS_syscall 0x00
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Inline functions
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/* SVC call with SYS_ call number and no parameters */
+
+static inline uintptr_t sys_call0(unsigned int nbr)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/* SVC call with SYS_ call number and one parameter */
+
+static inline uintptr_t sys_call1(unsigned int nbr, uintptr_t parm1)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+ register long reg1 __asm__("r1") = (long)(parm1);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0), "r"(reg1)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/* SVC call with SYS_ call number and two parameters */
+
+static inline uintptr_t sys_call2(unsigned int nbr, uintptr_t parm1,
+ uintptr_t parm2)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+ register long reg2 __asm__("r2") = (long)(parm2);
+ register long reg1 __asm__("r1") = (long)(parm1);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0), "r"(reg1), "r"(reg2)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/* SVC call with SYS_ call number and three parameters */
+
+static inline uintptr_t sys_call3(unsigned int nbr, uintptr_t parm1,
+ uintptr_t parm2, uintptr_t parm3)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+ register long reg3 __asm__("r3") = (long)(parm3);
+ register long reg2 __asm__("r2") = (long)(parm2);
+ register long reg1 __asm__("r1") = (long)(parm1);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0), "r"(reg1), "r"(reg2), "r"(reg3)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/* SVC call with SYS_ call number and four parameters */
+
+static inline uintptr_t sys_call4(unsigned int nbr, uintptr_t parm1,
+ uintptr_t parm2, uintptr_t parm3,
+ uintptr_t parm4)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+ register long reg4 __asm__("r4") = (long)(parm4);
+ register long reg3 __asm__("r3") = (long)(parm3);
+ register long reg2 __asm__("r2") = (long)(parm2);
+ register long reg1 __asm__("r1") = (long)(parm1);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0), "r"(reg1), "r"(reg2),
+ "r"(reg3), "r"(reg4)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/* SVC call with SYS_ call number and five parameters */
+
+static inline uintptr_t sys_call5(unsigned int nbr, uintptr_t parm1,
+ uintptr_t parm2, uintptr_t parm3,
+ uintptr_t parm4, uintptr_t parm5)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+ register long reg5 __asm__("r5") = (long)(parm5);
+ register long reg4 __asm__("r4") = (long)(parm4);
+ register long reg3 __asm__("r3") = (long)(parm3);
+ register long reg2 __asm__("r2") = (long)(parm2);
+ register long reg1 __asm__("r1") = (long)(parm1);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0), "r"(reg1), "r"(reg2),
+ "r"(reg3), "r"(reg4), "r"(reg5)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/* SVC call with SYS_ call number and six parameters */
+
+static inline uintptr_t sys_call6(unsigned int nbr, uintptr_t parm1,
+ uintptr_t parm2, uintptr_t parm3,
+ uintptr_t parm4, uintptr_t parm5,
+ uintptr_t parm6)
+{
+ register long reg0 __asm__("r0") = (long)(nbr);
+ register long reg6 __asm__("r6") = (long)(parm6);
+ register long reg5 __asm__("r5") = (long)(parm5);
+ register long reg4 __asm__("r4") = (long)(parm4);
+ register long reg3 __asm__("r3") = (long)(parm3);
+ register long reg2 __asm__("r2") = (long)(parm2);
+ register long reg1 __asm__("r1") = (long)(parm1);
+
+ __asm__ __volatile__
+ (
+ "svc %1"
+ : "=r"(reg0)
+ : "i"(SYS_syscall), "r"(reg0), "r"(reg1), "r"(reg2),
+ "r"(reg3), "r"(reg4), "r"(reg5), "r"(reg6)
+ : "memory"
+ );
+
+ return reg0;
+}
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_ARM_INCLUDE_ARMV7_M_SYSCALL_H */
+
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