Diff: TARGET_SAMD21G18A/TOOLCHAIN_GCC_ARM/pinmap_function.h

Revision:

171:3a7713b1edbc

Parent:

111:4336505e4b1c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_SAMD21G18A/TOOLCHAIN_GCC_ARM/pinmap_function.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,103 @@
+/* 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.
+ */
+#ifndef PINMAP_FUNCTION_H
+#define PINMAP_FUNCTION_H
+
+#include <compiler.h>
+#include "cmsis.h"
+#include "PinNames.h"
+#include "pinmux.h"
+#include "pinmap.h"
+
+#include "PeripheralPins.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum sercom_pad_selection {
+    SERCOM_USE_DEFAULT_PAD,
+    SERCOM_USE_EXTENDED_PAD,
+};
+
+/** Find the SERCOM peripheral of given pin
+ *
+ * Find and return the SERCOM peripheral of input pin, either from default pas, or from extended pads
+ * @param[in] pin1  First pin
+ * @param[in] pad_select  Second pin
+ * @return    SERCOM peripheral if found, else, NC
+ */
+uint32_t pinmap_find_peripheral_from_pad(PinName pin, enum sercom_pad_selection pad_select);
+
+/** Find the common SERCOM shared by two pins
+ *
+ * Finds the common SERCOM index of two input pins.
+ * If swapping the input argument gives different result, it means, two SERCOMs share both pins
+ * @param[in] pin1  First pin
+ * @param[in] pin2  Second pin
+ * @return          SERCOM index if found, else, NC
+ */
+uint32_t pinmap_merge_sercom(PinName pin1, PinName pin2);
+
+/** Find the common SERCOM shared by four pins
+ *
+ * Finds the common SERCOM index shared by four input pins.
+ * If reversing the input argument order gives different result, it means, two SERCOMs share the pins
+ * @param[in] pin1  First pin
+ * @param[in] pin2  Second pin
+ * @param[in] pin3  Third pin
+ * @param[in] pin4  Fourth pin
+ * @return          SERCOM index if found, else, NC
+ */
+uint32_t pinmap_find_sercom(PinName pin1, PinName pin2, PinName pin3, PinName pin4);
+
+/** Find the MUX function of input pin specific to given SERCOM index
+ *
+ * @param[in] pin           Pin whose function is to be found out
+ * @param[in] sercom_index  SERCOM index
+ * @return                  MUX function if found, else, NC
+ */
+uint32_t pinmap_function_sercom(PinName pin, uint32_t sercom_index);
+
+/** Find the MUX pad of input pin specific to given SERCOM index
+ *
+ * @param[in] pin           Pin whose function is to be found out
+ * @param[in] sercom_index  SERCOM index
+ * @return                  MUX pad if found, else, NC
+ */
+uint32_t pinmap_pad_sercom(PinName pin, uint32_t sercom_index);
+
+/** Find the MUX function of input pin specific to given SERCOM index
+ *
+ * @param[in] pin           unused
+ * @param[in] sercom_index  SERCOM index
+ * @return                  base address to SERCOM if found, else NC
+ */
+uint32_t pinmap_peripheral_sercom(PinName pin, uint32_t sercom_index);
+
+/** Find the channel index of a pin specific to a PWM instance
+ *
+ * @param[in] pin   pin name
+ * @param[in] pwm   pwm peripheral (unused now)
+ * @return          Channel index of the specified pin
+ */
+uint32_t pinmap_channel_pwm(PinName pin, PWMName pwm);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PINMAP_FUNCTION_H */