Refactor the touch sensor driver

components/soc/esp32/include/soc/touch_sensor_caps.h

@@ -0,0 +1,29 @@
+// Copyright 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.
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SOC_TOUCH_SENSOR_NUM            (10)
+#define SOC_TOUCH_SENSOR_BIT_MASK_MAX   (0x3ff)
+
+#define SOC_TOUCH_PAD_MEASURE_WAIT      (0xFF)  /*!<The timer frequency is 8Mhz, the max value is 0xff */
+#define SOC_TOUCH_PAD_THRESHOLD_MAX     (0)     /*!<If set touch threshold max value, The touch sensor can't be in touched status */
+
+#ifdef __cplusplus
+}
+#endif

components/soc/esp32/include/soc/touch_sensor_channel.h

@@ -1,4 +1,4 @@
-// Copyright 2010-2016 Espressif Systems (Shanghai) PTE LTD
+// Copyright 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.