Diff: targets/TARGET_TOSHIBA/TARGET_TMPM46B/gpio_api.c

Revision:

184:08ed48f1de7f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_TOSHIBA/TARGET_TMPM46B/gpio_api.c	Thu Apr 19 17:12:19 2018 +0100
@@ -0,0 +1,89 @@
+/* mbed Microcontroller Library
+ * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2017 All rights reserved
+ *
+ * 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 "PeripheralNames.h"
+#include "pinmap.h"
+#include "mbed_error.h"
+
+#define GPIO_DATA PIN_DATA(0, 3)
+extern const PinMap PinMap_GPIO_IRQ[];
+
+uint32_t gpio_set(PinName pin)
+{
+    // Check that pin is valid
+    MBED_ASSERT(pin != (PinName)NC);
+
+    // Set pin function as GPIO pin
+    pin_function(pin, GPIO_DATA);
+
+    // Return pin mask
+    return (1 << (pin & 0x07));
+}
+
+void gpio_init(gpio_t *obj, PinName pin)
+{
+    // Store above pin mask, pin name into GPIO object
+    obj->pin      = pin;
+    obj->mask     = gpio_set(pin);
+    obj->port     = (GPIO_Port) (pin >> 3);
+    CG_SetFcPeriphA((1 << obj->port), ENABLE);
+}
+
+void gpio_mode(gpio_t *obj, PinMode mode)
+{
+    // Set pin mode
+    pin_mode(obj->pin, mode);
+}
+
+// Set gpio object pin direction
+void gpio_dir(gpio_t *obj, PinDirection direction)
+{
+    // Set direction
+    switch (direction) {
+        case PIN_INPUT:
+            // Set pin input
+            GPIO_SetInput(obj->port, obj->mask);
+            break;
+        case PIN_OUTPUT:
+            // Set pin output
+            GPIO_SetOutput(obj->port, obj->mask);
+            break;
+        case PIN_INOUT:
+            // Set pin both input and output
+            GPIO_SetOutputEnableReg(obj->port, obj->mask, ENABLE);
+            GPIO_SetInputEnableReg(obj->port, obj->mask, ENABLE);
+            break;
+        default:
+            error("Invalid direction\n");
+            break;
+    }
+}
+
+void gpio_write(gpio_t *obj, int value)
+{
+    // Write gpio object pin data
+    if ((value == 0) || (value == 1)) {
+        GPIO_WriteDataBit(obj->port, obj->mask, value);
+    } else {
+        error("Invalid value\n");
+    }
+}
+
+int gpio_read(gpio_t *obj)
+{
+    // Read gpio object pin data
+    return GPIO_ReadDataBit(obj->port, obj->mask);
+}