Diff: targets/hal/TARGET_Atmel/TARGET_SAM_CortexM4/port_api.c

Revision:

107:414e9c822e99

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_Atmel/TARGET_SAM_CortexM4/port_api.c	Tue Apr 05 18:15:12 2016 +0100
@@ -0,0 +1,92 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2015 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 "port_api.h"
+#include "pinmap.h"
+#include "gpio_api.h"
+#include "ioport.h"
+
+extern uint8_t g_sys_init;
+
+void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
+{
+    MBED_ASSERT(obj);
+    if (g_sys_init == 0) {
+        sysclk_init();
+        system_board_init();
+        g_sys_init = 1;
+    }
+    obj->port = port;
+    obj->mask = mask;
+
+    switch (dir) {
+        case PIN_INPUT :
+            ioport_set_port_dir(port, mask, IOPORT_DIR_INPUT);
+            break;
+        case PIN_OUTPUT:
+            ioport_set_port_dir(port, mask, IOPORT_DIR_OUTPUT);
+            break;
+        case PIN_INPUT_OUTPUT:
+            ioport_set_port_dir(port, mask, IOPORT_DIR_OUTPUT);
+            break;
+    }
+    ioport_set_port_mode(port, mask, IOPORT_MODE_PULLUP);
+}
+
+void port_mode(port_t *obj, PinMode mode)
+{
+    MBED_ASSERT(obj);
+    obj->mode = mode;
+    switch (mode) {
+        case PullNone :
+            ioport_set_port_mode(obj->port, obj->mask, IOPORT_MODE_OPEN_DRAIN);
+            break;
+        case PullUp:
+            ioport_set_port_mode(obj->port, obj->mask, IOPORT_MODE_PULLUP);
+            break;
+        case PullDown:
+            ioport_set_port_mode(obj->port, obj->mask, IOPORT_MODE_PULLDOWN);
+            break;
+    }
+}
+
+void port_dir(port_t *obj, PinDirection dir)
+{
+    MBED_ASSERT(obj);
+    obj->direction = dir;
+    switch (dir) {
+        case PIN_INPUT :
+            ioport_set_port_dir(obj->port, obj->mask, IOPORT_DIR_INPUT);
+            break;
+        case PIN_OUTPUT:
+            ioport_set_port_dir(obj->port, obj->mask, IOPORT_DIR_OUTPUT);
+            break;
+        case PIN_INPUT_OUTPUT:
+            ioport_set_port_dir(obj->port, obj->mask, IOPORT_DIR_OUTPUT);
+            break;
+    }
+}
+
+void port_write(port_t *obj, int value)
+{
+    MBED_ASSERT(obj);
+    ioport_set_port_level(obj->port, obj->mask, value);
+}
+
+int port_read(port_t *obj)
+{
+    MBED_ASSERT(obj);
+    return ioport_get_port_level(obj->port, obj->mask);
+}