rtcio: add hal for driver

components/soc/esp32/include/soc/rtc_io_caps.h

@@ -0,0 +1,21 @@
+// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
+//
+// 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.
+
+#ifndef _SOC_RTC_IO_CAPS_H_
+#define _SOC_RTC_IO_CAPS_H_
+
+#define SOC_RTC_IO_PIN_COUNT   18
+#define SOC_PIN_FUNC_RTC_IO     0
+
+#endif

components/soc/esp32/include/soc/rtc_io_channel.h

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef _SOC_RTC_GPIO_CHANNEL_H
-#define _SOC_RTC_GPIO_CHANNEL_H
+#ifndef _SOC_RTC_IO_CHANNEL_H
+#define _SOC_RTC_IO_CHANNEL_H
 
 #define RTC_GPIO_NUMBER             18