Diff: targets/TARGET_RENESAS/TARGET_RZ_A1H/gpio_api.c

Revision:

0:098463de4c5d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_RENESAS/TARGET_RZ_A1H/gpio_api.c	Wed Jan 25 20:34:15 2017 +0000
@@ -0,0 +1,57 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * 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 "gpio_api.h"
+#include "pinmap.h"
+#include "gpio_addrdefine.h"
+
+
+uint32_t gpio_set(PinName pin) {
+    pin_function(pin, 0);
+    return (1 << PINNO(pin));
+}
+
+void gpio_init(gpio_t *obj, PinName pin) {
+    int group ;
+    obj->pin = pin;
+    if(pin == NC) return;
+    
+    obj->mask = gpio_set(pin);
+
+    group = PINGROUP(pin);
+    if (group > 11) return;
+
+    obj->reg_set = (volatile uint32_t *) PSR(group);
+    obj->reg_in  = (volatile uint32_t *) PPR(group);
+    obj->reg_dir = (volatile uint32_t *)PMSR(group);
+    obj->reg_buf = (volatile uint32_t *)PIBC(group);
+}
+
+void gpio_mode(gpio_t *obj, PinMode mode) {
+/* Pull up and Pull down settings aren't supported because RZ/A1H doesn't have pull up/down for pins(signals). */
+}
+
+void gpio_dir(gpio_t *obj, PinDirection direction) {
+    switch (direction) {
+        case PIN_INPUT :
+            *obj->reg_dir = (obj->mask << 16) | obj->mask;
+            *obj->reg_buf |=  obj->mask;
+            break;
+        case PIN_OUTPUT:
+            *obj->reg_dir = (obj->mask << 16) | 0;
+            *obj->reg_buf &= ~obj->mask;
+            break;
+    }
+}