diff options
Diffstat (limited to 'os/ports/IAR/ARMCMx/chcore_v6m.h')
| -rw-r--r-- | os/ports/IAR/ARMCMx/chcore_v6m.h | 96 |
1 files changed, 54 insertions, 42 deletions
diff --git a/os/ports/IAR/ARMCMx/chcore_v6m.h b/os/ports/IAR/ARMCMx/chcore_v6m.h index 41b656532..8ab9ff583 100644 --- a/os/ports/IAR/ARMCMx/chcore_v6m.h +++ b/os/ports/IAR/ARMCMx/chcore_v6m.h @@ -30,9 +30,59 @@ #define _CHCORE_V6M_H_
/*===========================================================================*/
+/* Port constants. */
+/*===========================================================================*/
+
+/**
+ * @brief PendSV priority level.
+ * @note This priority is enforced to be equal to @p 0,
+ * this handler always have the highest priority that cannot preempt
+ * the kernel.
+ */
+#define CORTEX_PRIORITY_PENDSV 0
+
+/*===========================================================================*/
+/* Port configurable parameters. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Port derived parameters. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Port exported info. */
+/*===========================================================================*/
+
+/**
+ * @brief Macro defining the specific ARM architecture.
+ */
+#define CH_ARCHITECTURE_ARM_v6M
+
+/**
+ * @brief Name of the implemented architecture.
+ */
+#define CH_ARCHITECTURE_NAME "ARMv6-M"
+
+/**
+ * @brief Name of the architecture variant.
+ */
+#if (CORTEX_MODEL == CORTEX_M0) || defined(__DOXYGEN__)
+#define CH_CORE_VARIANT_NAME "Cortex-M0"
+#elif (CORTEX_MODEL == CORTEX_M1)
+#define CH_CORE_VARIANT_NAME "Cortex-M1"
+#endif
+
+/*===========================================================================*/
/* Port implementation part. */
/*===========================================================================*/
+#if !defined(_FROM_ASM_)
+
+/**
+ * @brief Generic ARM register.
+ */
+typedef void *regarm_t;
+
#if !defined(__DOXYGEN__)
struct extctx {
regarm_t r0;
@@ -59,48 +109,6 @@ struct intctx { #endif
/**
- * @brief Platform dependent part of the @p chThdInit() API.
- * @details This code usually setup the context switching frame represented
- * by an @p intctx structure.
- */
-#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
- tp->p_ctx.r13 = (struct intctx *)((uint8_t *)workspace + \
- wsize - \
- sizeof(struct intctx)); \
- tp->p_ctx.r13->r4 = (void *)pf; \
- tp->p_ctx.r13->r5 = arg; \
- tp->p_ctx.r13->lr = (void *)_port_thread_start; \
-}
-
-/**
- * @brief Stack size for the system idle thread.
- * @details This size depends on the idle thread implementation, usually
- * the idle thread should take no more space than those reserved
- * by @p PORT_INT_REQUIRED_STACK.
- * @note In this port it is set to 8 because the idle thread does have
- * a stack frame when compiling without optimizations. You may
- * reduce this value to zero when compiling with optimizations.
- */
-#ifndef PORT_IDLE_THREAD_STACK_SIZE
-#define PORT_IDLE_THREAD_STACK_SIZE 16
-#endif
-
-/**
- * @brief Per-thread stack overhead for interrupts servicing.
- * @details This constant is used in the calculation of the correct working
- * area size.
- * This value can be zero on those architecture where there is a
- * separate interrupt stack and the stack space between @p intctx and
- * @p extctx is known to be zero.
- * @note In this port it is conservatively set to 16 because the function
- * @p chSchDoRescheduleI() can have a stack frame, expecially with
- * compiler optimizations disabled.
- */
-#ifndef PORT_INT_REQUIRED_STACK
-#define PORT_INT_REQUIRED_STACK 16
-#endif
-
-/**
* @brief IRQ prologue code.
* @details This macro must be inserted at the start of all IRQ handlers
* enabled to invoke system APIs.
@@ -133,6 +141,8 @@ struct intctx { */
#define port_init() { \
SCB_AIRCR = AIRCR_VECTKEY | AIRCR_PRIGROUP(0); \
+ NVICSetSystemHandlerPriority(HANDLER_PENDSV, \
+ CORTEX_PRIORITY_MASK(CORTEX_PRIORITY_PENDSV)); \
NVICSetSystemHandlerPriority(HANDLER_SYSTICK, \
CORTEX_PRIORITY_MASK(CORTEX_PRIORITY_SYSTICK)); \
}
@@ -230,6 +240,8 @@ extern "C" { }
#endif
+#endif /* _FROM_ASM_ */
+
#endif /* _CHCORE_V6M_H_ */
/** @} */
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