Import Mbed OS hard-float snapshot

targets/TARGET_Samsung/TARGET_SIDK_S1SBP6A/pinmap.c

@@ -0,0 +1,81 @@
+/****************************************************************************
+ *
+ * Copyright 2020 Samsung Electronics All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 "cmsis.h"
+#include "mbed_assert.h"
+#include "pinmap.h"
+#include "mbed_error.h"
+#include "PeripheralPins.h"
+
+void set_alt(uint8_t port, uint8_t pin, uint8_t alt)
+{
+    switch (alt) {
+        case ALT0 :
+        case ALT1 :
+            modifyreg32(GPIO_PORT_BASE(port) + GPIO_ALTFUNCSET_OFFSET,
+                        0x01 << pin, 0x01 << pin);
+            modifyreg32(GPIO_PORT_BASE(port) + GPIO_ALTFUNCSEL_OFFSET,
+                        0x01 << pin, 0x01 << pin);
+            modifyreg32(GPIO_PORT_BASE(port) + GPIO_ALTFUNCSEL_OFFSET,
+                        0x1 << (pin), alt << (pin));
+            break;
+        default:
+            break;
+    }
+}
+
+void set_pullup(uint8_t port, uint8_t pin, uint8_t pullup)
+{
+    if (pullup == PullNone) {
+        return;
+    }
+
+    uint8_t idx = port * 4 + pin / 4 + 2;
+    uint8_t bit = (pin << 3) % 32;
+
+    modifyreg32(&BP_SYSCON->IOCFG[idx], 0x1C << bit, pullup << bit);
+}
+
+void set_drvstr(uint8_t port, uint8_t pin, uint8_t str)
+{
+    modifyreg32(&BP_SYSCON->IOCFG_GENERAL, 0x3, str);
+}
+
+void pin_function(PinName pin, int function)
+{
+    uint8_t port_n = BP6A_PORT_IDX(pin);
+    uint8_t pin_n =  BP6A_PIN_IDX(pin);
+
+    MBED_ASSERT(port_n < 3 && pin_n < 16);
+
+    bp6a_set_pin_config(port_n, pin_n, GET_PIN_DIR(function));
+    set_alt(port_n, pin_n, GET_PIN_SEL(function));
+    set_pullup(port_n, pin_n, GET_PIN_MODE(function));
+
+}
+
+void pin_mode(PinName pin, PinMode mode)
+{
+    MBED_ASSERT(pin != (PinName)NC);
+
+    uint8_t port_n = BP6A_PORT_IDX(pin);
+    uint8_t pin_n =  BP6A_PIN_IDX(pin);
+
+    set_pullup(port_n, pin_n, mode);
+}