Event enable check API added to PAL driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@12530 110e8d01-0319-4d1e-a829-52ad28d1bb01

os/hal/include/hal_pal.h

@@ -912,6 +912,42 @@ typedef struct {
     osalSysUnlock();                                                        \
   } while (false)
 
+/**
+ * @brief   Pad event enable check.
+ *
+ * @param[in] port      port identifier
+ * @param[in] pad       pad number within the port
+ * @return              Pad event status.
+ * @retval false        if the pad event is disabled.
+ * @retval true         if the pad event is enabled.
+ *
+ * @xclass
+ */
+#if !defined(pal_lld_ispadeventenabled) || defined(__DOXYGEN__)
+#define palIsPadEventEnabledX(port, pad) false
+#else
+#define palIsPadEventEnabledX(port, pad)                                    \
+  pal_lld_ispadeventenabled(port, pad)
+#endif
+
+/**
+ * @brief   Line event enable check.
+ *
+ * @param[in] line      line identifier
+ * @return              Line event status.
+ * @retval false        if the line event is disabled.
+ * @retval true         if the line event is enabled.
+ *
+ * @xclass
+ */
+#if !defined(pal_lld_islineeventenabled) || defined(__DOXYGEN__)
+#define palIsLineEventEnabledX(line)                                        \
+  pal_lld_ispadeventenabled(PAL_PORT(line), PAL_PAD(line))
+#else
+#define palIsLineEventEnabledX(line)                                        \
+  pal_lld_islineeventenabled(line)
+#endif
+
 #endif /* PAL_USE_CALLBACKS || PAL_USE_WAIT */
 
 #if (PAL_USE_CALLBACKS == TRUE) || defined(__DOXYGEN__)

os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.h

@@ -414,6 +414,20 @@ typedef uint32_t iopadid_t;
 #define pal_lld_get_line_event(line)                                        \
   &_pal_events[PAL_PAD(line)]
 
+/**
+ * @brief   Pad event enable check.
+ *
+ * @param[in] port      port identifier
+ * @param[in] pad       pad number within the port
+ * @return              Pad event status.
+ * @retval false        if the pad event is disabled.
+ * @retval true         if the pad event is enabled.
+ *
+ * @notapi
+ */
+#define pal_lld_ispadeventenabled(port, pad)                                \
+  (bool)((EXTI->IMR & (1U << (uint32_t)pad)) != 0U)
+
 #if !defined(__DOXYGEN__)
 extern const PALConfig pal_default_config;
 extern palevent_t _pal_events[16];

os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.h

@@ -472,6 +472,20 @@ typedef uint32_t iopadid_t;
 #define pal_lld_get_line_event(line)                                        \
   &_pal_events[PAL_PAD(line)]
 
+/**
+ * @brief   Pad event enable check.
+ *
+ * @param[in] port      port identifier
+ * @param[in] pad       pad number within the port
+ * @return              Pad event status.
+ * @retval false        if the pad event is disabled.
+ * @retval true         if the pad event is enabled.
+ *
+ * @notapi
+ */
+#define pal_lld_ispadeventenabled(port, pad)                                \
+  (bool)((EXTI->IMR & (1U << (uint32_t)pad)) != 0U)
+
 #if !defined(__DOXYGEN__)
 extern palevent_t _pal_events[16];
 #endif

os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.h

@@ -512,6 +512,20 @@ typedef uint32_t iopadid_t;
 #define pal_lld_get_line_event(line)                                        \
   &_pal_events[PAL_PAD(line)]
 
+/**
+ * @brief   Pad event enable check.
+ *
+ * @param[in] port      port identifier
+ * @param[in] pad       pad number within the port
+ * @return              Pad event status.
+ * @retval false        if the pad event is disabled.
+ * @retval true         if the pad event is enabled.
+ *
+ * @notapi
+ */
+#define pal_lld_ispadeventenabled(port, pad)                                \
+  (bool)((EXTI->IMR & (1U << (uint32_t)pad)) != 0U)
+
 #if !defined(__DOXYGEN__)
 extern palevent_t _pal_events[16];
 #endif

readme.txt

@@ -75,6 +75,7 @@
 *****************************************************************************
 
 *** Next ***
+- NEW: Event enable check API added to PAL driver.
 - NEW: Now it is possible to define separate directories for each
        configuration file.
 - NEW: Added option to enable bypass on SDIOv1 driver allowing to use a