Mouse code for the MacroRat
Diff: mbed-dev/targets/TARGET_NUVOTON/TARGET_M451/gpio_api.c
- Revision:
- 18:6a4db94011d3
diff -r f713758f6238 -r 6a4db94011d3 mbed-dev/targets/TARGET_NUVOTON/TARGET_M451/gpio_api.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-dev/targets/TARGET_NUVOTON/TARGET_M451/gpio_api.c Sun May 14 23:18:57 2017 +0000 @@ -0,0 +1,86 @@ +/* mbed Microcontroller Library + * Copyright (c) 2015-2016 Nuvoton + * + * 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 "gpio_api.h" +#include "mbed_assert.h" +#include "pinmap.h" +#include "mbed_error.h" +#include "PeripheralPins.h" + +uint32_t gpio_set(PinName pin) +{ + if (pin == (PinName) NC) { + return 0; + } + + uint32_t pin_index = NU_PINNAME_TO_PIN(pin); + +#if 1 + pin_function(pin, 0 << NU_MFP_POS(pin_index)); +#else + pinmap_pinout(pin, PinMap_GPIO); +#endif + + return (uint32_t)(1 << pin_index); // Return the pin mask +} + +void gpio_init(gpio_t *obj, PinName pin) +{ + obj->pin = pin; + + if (obj->pin == (PinName) NC) { + return; + } + + obj->mask = gpio_set(pin); +} + +void gpio_mode(gpio_t *obj, PinMode mode) +{ + if (obj->pin == (PinName) NC) { + return; + } + + pin_mode(obj->pin, mode); +} + +void gpio_dir(gpio_t *obj, PinDirection direction) +{ + if (obj->pin == (PinName) NC) { + return; + } + + uint32_t pin_index = NU_PINNAME_TO_PIN(obj->pin); + uint32_t port_index = NU_PINNAME_TO_PORT(obj->pin); + GPIO_T *gpio_base = NU_PORT_BASE(port_index); + + uint32_t mode_intern = GPIO_MODE_INPUT; + + switch (direction) { + case PIN_INPUT: + mode_intern = GPIO_MODE_INPUT; + break; + + case PIN_OUTPUT: + mode_intern = GPIO_MODE_OUTPUT; + break; + + default: + return; + } + + GPIO_SetMode(gpio_base, 1 << pin_index, mode_intern); +}