Mouse code for the MacroRat
mbed-dev/targets/TARGET_ARM_SSG/TARGET_IOTSS/port_api.c
- Committer:
- sahilmgandhi
- Date:
- 2017-05-14
- Revision:
- 18:6a4db94011d3
File content as of revision 18:6a4db94011d3:
/* 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. */ #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; CMSDK_GPIO_TypeDef *port_reg = (CMSDK_GPIO_TypeDef *)(CMSDK_GPIO0_BASE + ((int)port * 0x10)); obj->reg_in = &port_reg->DATAOUT; obj->reg_dir = &port_reg->OUTENABLESET; obj->reg_dirclr = &port_reg->OUTENABLECLR; uint32_t i; // The function is set per pin: reuse gpio logic for (i=0; i<16; 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_in = value; } int port_read(port_t *obj) { return (*obj->reg_in); }