Mouse code for the MacroRat
Diff: mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM4/port_api.c
- Revision:
- 18:6a4db94011d3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM4/port_api.c Sun May 14 23:18:57 2017 +0000 @@ -0,0 +1,92 @@ +/* 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" +#include "ioport.h" + +extern uint8_t g_sys_init; + +void port_init(port_t *obj, PortName port, int mask, PinDirection dir) +{ + MBED_ASSERT(obj); + if (g_sys_init == 0) { + sysclk_init(); + system_board_init(); + g_sys_init = 1; + } + obj->port = port; + obj->mask = mask; + + switch (dir) { + case PIN_INPUT : + ioport_set_port_dir(port, mask, IOPORT_DIR_INPUT); + break; + case PIN_OUTPUT: + ioport_set_port_dir(port, mask, IOPORT_DIR_OUTPUT); + break; + case PIN_INPUT_OUTPUT: + ioport_set_port_dir(port, mask, IOPORT_DIR_OUTPUT); + break; + } + ioport_set_port_mode(port, mask, IOPORT_MODE_PULLUP); +} + +void port_mode(port_t *obj, PinMode mode) +{ + MBED_ASSERT(obj); + obj->mode = mode; + switch (mode) { + case PullNone : + ioport_set_port_mode(obj->port, obj->mask, IOPORT_MODE_OPEN_DRAIN); + break; + case PullUp: + ioport_set_port_mode(obj->port, obj->mask, IOPORT_MODE_PULLUP); + break; + case PullDown: + ioport_set_port_mode(obj->port, obj->mask, IOPORT_MODE_PULLDOWN); + break; + } +} + +void port_dir(port_t *obj, PinDirection dir) +{ + MBED_ASSERT(obj); + obj->direction = dir; + switch (dir) { + case PIN_INPUT : + ioport_set_port_dir(obj->port, obj->mask, IOPORT_DIR_INPUT); + break; + case PIN_OUTPUT: + ioport_set_port_dir(obj->port, obj->mask, IOPORT_DIR_OUTPUT); + break; + case PIN_INPUT_OUTPUT: + ioport_set_port_dir(obj->port, obj->mask, IOPORT_DIR_OUTPUT); + break; + } +} + +void port_write(port_t *obj, int value) +{ + MBED_ASSERT(obj); + ioport_set_port_level(obj->port, obj->mask, value); +} + +int port_read(port_t *obj) +{ + MBED_ASSERT(obj); + return ioport_get_port_level(obj->port, obj->mask); +}