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-rw-r--r--libcpu/arm/cortex-m4/cpuport.c313
1 files changed, 160 insertions, 153 deletions
diff --git a/libcpu/arm/cortex-m4/cpuport.c b/libcpu/arm/cortex-m4/cpuport.c
index b8f00a7675..d320dccbb0 100644
--- a/libcpu/arm/cortex-m4/cpuport.c
+++ b/libcpu/arm/cortex-m4/cpuport.c
@@ -1,153 +1,160 @@
-/*
- * File : cpuport.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2011-10-21 Bernard the first version.
- * 2011-10-27 aozima update for cortex-M4 FPU.
- * 2011-12-31 aozima fixed stack align issues.
- * 2012-01-01 aozima support context switch load/store FPU register.
-*/
-#include <rtthread.h>
-
-#define USE_FPU /* ARMCC */ ( (defined ( __CC_ARM ) && defined ( __TARGET_FPU_VFP )) \
- /* IAR */ || (defined ( __ICCARM__ ) && defined ( __ARMVFP__ )) \
- /* GNU */ || (defined ( __GNUC__ ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) )
-
-/* exception and interrupt handler table */
-rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
-rt_uint32_t rt_thread_switch_interrupt_flag;
-
-struct exception_stack_frame
-{
- rt_uint32_t r0;
- rt_uint32_t r1;
- rt_uint32_t r2;
- rt_uint32_t r3;
- rt_uint32_t r12;
- rt_uint32_t lr;
- rt_uint32_t pc;
- rt_uint32_t psr;
-
-#if USE_FPU
- /* FPU register */
- rt_uint32_t S0;
- rt_uint32_t S1;
- rt_uint32_t S2;
- rt_uint32_t S3;
- rt_uint32_t S4;
- rt_uint32_t S5;
- rt_uint32_t S6;
- rt_uint32_t S7;
- rt_uint32_t S8;
- rt_uint32_t S9;
- rt_uint32_t S10;
- rt_uint32_t S11;
- rt_uint32_t S12;
- rt_uint32_t S13;
- rt_uint32_t S14;
- rt_uint32_t S15;
- rt_uint32_t FPSCR;
- rt_uint32_t NO_NAME;
-#endif
-};
-
-struct stack_frame
-{
- /* r4 ~ r11 register */
- rt_uint32_t r4;
- rt_uint32_t r5;
- rt_uint32_t r6;
- rt_uint32_t r7;
- rt_uint32_t r8;
- rt_uint32_t r9;
- rt_uint32_t r10;
- rt_uint32_t r11;
-
-#if USE_FPU
- /* FPU register s16 ~ s31 */
- rt_uint32_t s16;
- rt_uint32_t s17;
- rt_uint32_t s18;
- rt_uint32_t s19;
- rt_uint32_t s20;
- rt_uint32_t s21;
- rt_uint32_t s22;
- rt_uint32_t s23;
- rt_uint32_t s24;
- rt_uint32_t s25;
- rt_uint32_t s26;
- rt_uint32_t s27;
- rt_uint32_t s28;
- rt_uint32_t s29;
- rt_uint32_t s30;
- rt_uint32_t s31;
-#endif
-
- struct exception_stack_frame exception_stack_frame;
-};
-
-rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
- rt_uint8_t *stack_addr, void *texit)
-{
- struct stack_frame * stack_frame;
- rt_uint8_t * stk;
- unsigned long i;
-
- stk = stack_addr + sizeof(rt_uint32_t);
-
- stk -= sizeof(struct stack_frame);
- stack_frame = (struct stack_frame *)stk;
-
- /* init all register */
- for(i=0; i<sizeof(struct stack_frame)/sizeof(rt_uint32_t); i++)
- {
- ((rt_uint32_t*)stack_frame)[i] = 0xdeadbeef;
- }
-
- stack_frame->exception_stack_frame.r0 = (unsigned long)parameter; /* r0 : argument */
- stack_frame->exception_stack_frame.r1 = 0; /* r1 */
- stack_frame->exception_stack_frame.r2 = 0; /* r2 */
- stack_frame->exception_stack_frame.r3 = 0; /* r3 */
- stack_frame->exception_stack_frame.r12 = 0; /* r12 */
- stack_frame->exception_stack_frame.lr = (unsigned long)texit; /* lr */
- stack_frame->exception_stack_frame.pc = (unsigned long)tentry; /* entry point, pc */
- stack_frame->exception_stack_frame.psr = 0x01000000L; /* PSR */
-
- /* return task's current stack address */
- return stk;
-}
-
-extern void rt_hw_interrupt_thread_switch(void);
-extern long list_thread(void);
-extern rt_thread_t rt_current_thread;
-void rt_hw_hard_fault_exception(struct exception_stack_frame * exception_stack)
-{
- rt_kprintf("psr: 0x%08x\n", exception_stack->psr);
- rt_kprintf(" pc: 0x%08x\n", exception_stack->pc);
- rt_kprintf(" lr: 0x%08x\n", exception_stack->lr);
- rt_kprintf("r12: 0x%08x\n", exception_stack->r12);
- rt_kprintf("r03: 0x%08x\n", exception_stack->r3);
- rt_kprintf("r02: 0x%08x\n", exception_stack->r2);
- rt_kprintf("r01: 0x%08x\n", exception_stack->r1);
- rt_kprintf("r00: 0x%08x\n", exception_stack->r0);
-
- rt_kprintf("hard fault on thread: %s\n", rt_current_thread->name);
-#ifdef RT_USING_FINSH
- list_thread();
-#endif
- while (1);
-}
-
-void rt_hw_cpu_shutdown()
-{
- rt_kprintf("shutdown...\n");
-
- RT_ASSERT(0);
-}
+/*
+ * File : cpuport.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2011-10-21 Bernard the first version.
+ * 2011-10-27 aozima update for cortex-M4 FPU.
+ * 2011-12-31 aozima fixed stack align issues.
+ * 2012-01-01 aozima support context switch load/store FPU register.
+ * 2012-12-11 lgnq fixed the coding style.
+ */
+
+#include <rtthread.h>
+
+#define USE_FPU /* ARMCC */ ( (defined ( __CC_ARM ) && defined ( __TARGET_FPU_VFP )) \
+ /* IAR */ || (defined ( __ICCARM__ ) && defined ( __ARMVFP__ )) \
+ /* GNU */ || (defined ( __GNUC__ ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) )
+
+/* exception and interrupt handler table */
+rt_uint32_t rt_interrupt_from_thread;
+rt_uint32_t rt_interrupt_to_thread;
+rt_uint32_t rt_thread_switch_interrupt_flag;
+
+struct exception_stack_frame
+{
+ rt_uint32_t r0;
+ rt_uint32_t r1;
+ rt_uint32_t r2;
+ rt_uint32_t r3;
+ rt_uint32_t r12;
+ rt_uint32_t lr;
+ rt_uint32_t pc;
+ rt_uint32_t psr;
+
+#if USE_FPU
+ /* FPU register */
+ rt_uint32_t S0;
+ rt_uint32_t S1;
+ rt_uint32_t S2;
+ rt_uint32_t S3;
+ rt_uint32_t S4;
+ rt_uint32_t S5;
+ rt_uint32_t S6;
+ rt_uint32_t S7;
+ rt_uint32_t S8;
+ rt_uint32_t S9;
+ rt_uint32_t S10;
+ rt_uint32_t S11;
+ rt_uint32_t S12;
+ rt_uint32_t S13;
+ rt_uint32_t S14;
+ rt_uint32_t S15;
+ rt_uint32_t FPSCR;
+ rt_uint32_t NO_NAME;
+#endif
+};
+
+struct stack_frame
+{
+ /* r4 ~ r11 register */
+ rt_uint32_t r4;
+ rt_uint32_t r5;
+ rt_uint32_t r6;
+ rt_uint32_t r7;
+ rt_uint32_t r8;
+ rt_uint32_t r9;
+ rt_uint32_t r10;
+ rt_uint32_t r11;
+
+#if USE_FPU
+ /* FPU register s16 ~ s31 */
+ rt_uint32_t s16;
+ rt_uint32_t s17;
+ rt_uint32_t s18;
+ rt_uint32_t s19;
+ rt_uint32_t s20;
+ rt_uint32_t s21;
+ rt_uint32_t s22;
+ rt_uint32_t s23;
+ rt_uint32_t s24;
+ rt_uint32_t s25;
+ rt_uint32_t s26;
+ rt_uint32_t s27;
+ rt_uint32_t s28;
+ rt_uint32_t s29;
+ rt_uint32_t s30;
+ rt_uint32_t s31;
+#endif
+
+ struct exception_stack_frame exception_stack_frame;
+};
+
+rt_uint8_t *rt_hw_stack_init(void *tentry,
+ void *parameter,
+ rt_uint8_t *stack_addr,
+ void *texit)
+{
+ struct stack_frame *stack_frame;
+ rt_uint8_t *stk;
+ unsigned long i;
+
+ stk = stack_addr + sizeof(rt_uint32_t);
+ stk -= sizeof(struct stack_frame);
+
+ stack_frame = (struct stack_frame *)stk;
+
+ /* init all register */
+ for (i = 0; i < sizeof(struct stack_frame) / sizeof(rt_uint32_t); i ++)
+ {
+ ((rt_uint32_t *)stack_frame)[i] = 0xdeadbeef;
+ }
+
+ stack_frame->exception_stack_frame.r0 = (unsigned long)parameter; /* r0 : argument */
+ stack_frame->exception_stack_frame.r1 = 0; /* r1 */
+ stack_frame->exception_stack_frame.r2 = 0; /* r2 */
+ stack_frame->exception_stack_frame.r3 = 0; /* r3 */
+ stack_frame->exception_stack_frame.r12 = 0; /* r12 */
+ stack_frame->exception_stack_frame.lr = (unsigned long)texit; /* lr */
+ stack_frame->exception_stack_frame.pc = (unsigned long)tentry; /* entry point, pc */
+ stack_frame->exception_stack_frame.psr = 0x01000000L; /* PSR */
+
+ /* return task's current stack address */
+ return stk;
+}
+
+extern void rt_hw_interrupt_thread_switch(void);
+extern long list_thread(void);
+extern rt_thread_t rt_current_thread;
+void rt_hw_hard_fault_exception(struct exception_stack_frame *exception_stack)
+{
+ rt_kprintf("psr: 0x%08x\n", exception_stack->psr);
+ rt_kprintf(" pc: 0x%08x\n", exception_stack->pc);
+ rt_kprintf(" lr: 0x%08x\n", exception_stack->lr);
+ rt_kprintf("r12: 0x%08x\n", exception_stack->r12);
+ rt_kprintf("r03: 0x%08x\n", exception_stack->r3);
+ rt_kprintf("r02: 0x%08x\n", exception_stack->r2);
+ rt_kprintf("r01: 0x%08x\n", exception_stack->r1);
+ rt_kprintf("r00: 0x%08x\n", exception_stack->r0);
+
+ rt_kprintf("hard fault on thread: %s\n", rt_current_thread->name);
+
+#ifdef RT_USING_FINSH
+ list_thread();
+#endif
+
+ while (1);
+}
+
+void rt_hw_cpu_shutdown(void)
+{
+ rt_kprintf("shutdown...\n");
+
+ RT_ASSERT(0);
+}
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