mbed library sources, include can_api for nucleo-f091rc
Dependents: CanNucleoF0_example
Fork of mbed-src by
Diff: vendor/NXP/LPC11U24/hal/port_api.c
- Revision:
- 10:3bc89ef62ce7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vendor/NXP/LPC11U24/hal/port_api.c Fri Jun 14 17:49:17 2013 +0100 @@ -0,0 +1,67 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 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. + */ +#include "port_api.h" +#include "pinmap.h" +#include "gpio_api.h" + +PinName port_pin(PortName port, int pin_n) { + return (PinName)((port << PORT_SHIFT) | pin_n); +} + +void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { + obj->port = port; + obj->mask = mask; + + LPC_GPIO->MASK[port] = ~mask; + + obj->reg_mpin = &LPC_GPIO->MPIN[port]; + obj->reg_dir = &LPC_GPIO->DIR[port]; + + uint32_t i; + // The function is set per pin: reuse gpio logic + for (i=0; i<32; i++) { + if (obj->mask & (1<<i)) { + gpio_set(port_pin(obj->port, i)); + } + } + + port_dir(obj, dir); +} + +void port_mode(port_t *obj, PinMode mode) { + uint32_t i; + // The mode is set per pin: reuse pinmap logic + for (i=0; i<32; i++) { + if (obj->mask & (1<<i)) { + pin_mode(port_pin(obj->port, i), mode); + } + } +} + +void port_dir(port_t *obj, PinDirection dir) { + switch (dir) { + case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; + case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; + } +} + +void port_write(port_t *obj, int value) { + *obj->reg_mpin = value; +} + +int port_read(port_t *obj) { + return (*obj->reg_mpin); +}