mbed library sources. Supersedes mbed-src.
Fork of mbed-dev by
targets/TARGET_Atmel/TARGET_SAM_CortexM4/port_api.c
- Committer:
- fwndz
- Date:
- 2016-12-22
- Revision:
- 153:9398a535854b
- Parent:
- 149:156823d33999
File content as of revision 153:9398a535854b:
/* 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); }