Diff: targets/TARGET_NUVOTON/TARGET_M2351/pinmap.c

Revision:

187:0387e8f68319

Child:

188:bcfe06ba3d64

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_M2351/pinmap.c	Thu Sep 06 13:40:20 2018 +0100
@@ -0,0 +1,91 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017-2018 Nuvoton
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <arm_cmse.h>
+#include "mbed_assert.h"
+#include "pinmap.h"
+#include "PortNames.h"
+#include "mbed_error.h"
+#include "partition_M2351.h"
+#include "hal_secure.h"
+
+/**
+ * Configure pin multi-function
+ */
+void pin_function(PinName pin, int data)
+{
+    pin_function_s(pin, data);
+}
+
+/**
+ * Configure pin pull-up/pull-down
+ */
+void pin_mode(PinName pin, PinMode mode)
+{
+    MBED_ASSERT(pin != (PinName)NC);
+    uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
+    uint32_t port_index = NU_PINNAME_TO_PORT(pin);
+    GPIO_T *gpio_base = NU_PORT_BASE(port_index);
+    
+    uint32_t mode_intern = GPIO_MODE_INPUT;
+    
+    switch (mode) {
+        case PullUp:
+            mode_intern = GPIO_MODE_INPUT;
+            break;
+            
+        case PullDown:
+        case PullNone:
+            // NOTE: Not support
+            return;
+        
+        case PushPull:
+            mode_intern = GPIO_MODE_OUTPUT;
+            break;
+            
+        case OpenDrain:
+            mode_intern = GPIO_MODE_OPEN_DRAIN;
+            break;
+            
+        case Quasi:
+            mode_intern = GPIO_MODE_QUASI;
+            break;
+    }
+    
+    GPIO_SetMode(gpio_base, 1 << pin_index, mode_intern);
+}
+
+#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
+__NONSECURE_ENTRY
+void pin_function_s(int32_t pin, int32_t data)
+{
+    MBED_ASSERT(pin != (PinName)NC);
+    uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
+    uint32_t port_index = NU_PINNAME_TO_PORT(pin);
+    
+    /* Guard access to secure GPIO from non-secure domain */
+    if (cmse_nonsecure_caller() && 
+        (! (SCU_INIT_IONSSET_VAL & (1 << (port_index + 0))))) {
+        error("Non-secure domain tries to control secure or undefined GPIO.");
+    }
+
+    __IO uint32_t *GPx_MFPx = ((__IO uint32_t *) &SYS->GPA_MFPL) + port_index * 2 + (pin_index / 8);
+    uint32_t MFP_Msk = NU_MFP_MSK(pin_index);
+    
+    // E.g.: SYS->GPA_MFPL  = (SYS->GPA_MFPL & (~SYS_GPA_MFPL_PA0MFP_Msk) ) | SYS_GPA_MFPL_PA0MFP_SC0_CD  ;
+    *GPx_MFPx  = (*GPx_MFPx & (~MFP_Msk)) | data;
+}
+#endif