ICU support for STM32 TIM9 unit.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5673 35acf78f-673a-0410-8e92-d51de3d6d3f4

2 files changed, 82 insertions, 2 deletions

diff --git a/os/hal/platforms/STM32/icu_lld.c b/os/hal/platforms/STM32/icu_lld.c
index ccf70bb70..2e3c4334b 100644
--- a/os/hal/platforms/STM32/icu_lld.c
+++ b/os/hal/platforms/STM32/icu_lld.c
@@ -87,6 +87,14 @@ ICUDriver ICUD5;
 ICUDriver ICUD8;

 #endif

 

+/**

+ * @brief   ICUD9 driver identifier.

+ * @note    The driver ICUD9 allocates the timer TIM9 when enabled.

+ */

+#if STM32_ICU_USE_TIM9 || defined(__DOXYGEN__)

+ICUDriver ICUD9;

+#endif

+

 /*===========================================================================*/

 /* Driver local variables and types.                                         */

 /*===========================================================================*/

@@ -297,6 +305,28 @@ CH_IRQ_HANDLER(STM32_TIM8_CC_HANDLER) {
 }

 #endif /* STM32_ICU_USE_TIM8 */

 

+#if STM32_ICU_USE_TIM9

+#if !defined(STM32_TIM9_HANDLER)

+#error "STM32_TIM9_HANDLER not defined"

+#endif

+/**

+ * @brief   TIM9 interrupt handler.

+ * @note    It is assumed that the various sources are only activated if the

+ *          associated callback pointer is not equal to @p NULL in order to not

+ *          perform an extra check in a potentially critical interrupt handler.

+ *

+ * @isr

+ */

+CH_IRQ_HANDLER(STM32_TIM9_HANDLER) {

+

+  CH_IRQ_PROLOGUE();

+

+  icu_lld_serve_interrupt(&ICUD9);

+

+  CH_IRQ_EPILOGUE();

+}

+#endif /* STM32_ICU_USE_TIM9 */

+

 /*===========================================================================*/

 /* Driver exported functions.                                                */

 /*===========================================================================*/

@@ -343,6 +373,12 @@ void icu_lld_init(void) {
   icuObjectInit(&ICUD8);

   ICUD8.tim = STM32_TIM8;

 #endif

+

+#if STM32_ICU_USE_TIM9

+  /* Driver initialization.*/

+  icuObjectInit(&ICUD9);

+  ICUD9.tim = STM32_TIM9;

+#endif

 }

 

 /**

@@ -399,7 +435,6 @@ void icu_lld_start(ICUDriver *icup) {
       icup->clock = STM32_TIMCLK1;

     }

 #endif

-

 #if STM32_ICU_USE_TIM5

     if (&ICUD5 == icup) {

       rccEnableTIM5(FALSE);

@@ -420,6 +455,15 @@ void icu_lld_start(ICUDriver *icup) {
       icup->clock = STM32_TIMCLK2;

     }

 #endif

+#if STM32_ICU_USE_TIM9

+    if (&ICUD9 == icup) {

+      rccEnableTIM9(FALSE);

+      rccResetTIM9();

+      nvicEnableVector(STM32_TIM9_NUMBER,

+                       CORTEX_PRIORITY_MASK(STM32_ICU_TIM9_IRQ_PRIORITY));

+      icup->clock = STM32_TIMCLK1;

+    }

+#endif

   }

   else {

     /* Driver re-configuration scenario, it must be stopped first.*/

@@ -541,6 +585,12 @@ void icu_lld_stop(ICUDriver *icup) {
       rccDisableTIM8(FALSE);

     }

 #endif

+#if STM32_ICU_USE_TIM9

+    if (&ICUD9 == icup) {

+      nvicDisableVector(STM32_TIM9_NUMBER);

+      rccDisableTIM9(FALSE);

+    }

+#endif

   }

 }

 

diff --git a/os/hal/platforms/STM32/icu_lld.h b/os/hal/platforms/STM32/icu_lld.h
index 90d401969..ee5f313f3 100644
--- a/os/hal/platforms/STM32/icu_lld.h
+++ b/os/hal/platforms/STM32/icu_lld.h
@@ -94,6 +94,15 @@
 #endif

 

 /**

+ * @brief   ICUD9 driver enable switch.

+ * @details If set to @p TRUE the support for ICUD9 is included.

+ * @note    The default is @p TRUE.

+ */

+#if !defined(STM32_ICU_USE_TIM9) || defined(__DOXYGEN__)

+#define STM32_ICU_USE_TIM9                  FALSE

+#endif

+

+/**

  * @brief   ICUD1 interrupt priority level setting.

  */

 #if !defined(STM32_ICU_TIM1_IRQ_PRIORITY) || defined(__DOXYGEN__)

@@ -134,6 +143,13 @@
 #if !defined(STM32_ICU_TIM8_IRQ_PRIORITY) || defined(__DOXYGEN__)

 #define STM32_ICU_TIM8_IRQ_PRIORITY         7

 #endif

+

+/**

+ * @brief   ICUD9 interrupt priority level setting.

+ */

+#if !defined(STM32_ICU_TIM9_IRQ_PRIORITY) || defined(__DOXYGEN__)

+#define STM32_ICU_TIM9_IRQ_PRIORITY         7

+#endif

 /** @} */

 

 /*===========================================================================*/

@@ -164,9 +180,14 @@
 #error "TIM8 not present in the selected device"

 #endif

 

+#if STM32_ICU_USE_TIM9 && !STM32_HAS_TIM9

+#error "TIM9 not present in the selected device"

+#endif

+

 #if !STM32_ICU_USE_TIM1 && !STM32_ICU_USE_TIM2 &&                           \

     !STM32_ICU_USE_TIM3 && !STM32_ICU_USE_TIM4 &&                           \

-    !STM32_ICU_USE_TIM5 && !STM32_ICU_USE_TIM8

+    !STM32_ICU_USE_TIM5 && !STM32_ICU_USE_TIM8 &&                           \

+    !STM32_ICU_USE_TIM9

 #error "ICU driver activated but no TIM peripheral assigned"

 #endif

 

@@ -200,6 +221,11 @@
 #error "Invalid IRQ priority assigned to TIM8"

 #endif

 

+#if STM32_ICU_USE_TIM9 &&                                                   \

+    !CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ICU_TIM9_IRQ_PRIORITY)

+#error "Invalid IRQ priority assigned to TIM9"

+#endif

+

 /*===========================================================================*/

 /* Driver data structures and types.                                         */

 /*===========================================================================*/

@@ -355,6 +381,10 @@ extern ICUDriver ICUD5;
 extern ICUDriver ICUD8;

 #endif

 

+#if STM32_ICU_USE_TIM9 && !defined(__DOXYGEN__)

+extern ICUDriver ICUD9;

+#endif

+

 #ifdef __cplusplus

 extern "C" {

 #endif