mbed library sources
Fork of mbed-src by
targets/hal/TARGET_RENESAS/TARGET_RZ_A1H/pinmap.c
- Committer:
- mbed_official
- Date:
- 2014-11-19
- Revision:
- 409:a95c696104d3
- Parent:
- 390:35c2c1cf29cd
- Child:
- 443:ed48b4122bfb
File content as of revision 409:a95c696104d3:
/* 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 "pinmap.h" #include "mbed_error.h" #include "gpio_addrdefine.h" PinName gpio_multi_guard = (PinName)NC; /* If set pin name here, setting of the "pin" is just one time */ void pin_function(PinName pin, int function) { if (pin == (PinName)NC) return; int n = pin >> 4; int bitmask = 1<<(pin & 0xf); if (gpio_multi_guard != pin) { if (function == 0) { // means GPIO mode *PMC(n) &= ~bitmask; } else { // alt-function mode *PMC(n) |= bitmask; --function; if (function & (1 << 2)) { *PFCAE(n) |= bitmask;}else { *PFCAE(n) &= ~bitmask;} if (function & (1 << 1)) { *PFCE(n) |= bitmask;}else { *PFCE(n) &= ~bitmask;} if (function & (1 << 0)) { *PFC(n) |= bitmask;}else { *PFC(n) &= ~bitmask;} *PIPC(n) |= bitmask; if (P1_0 <= pin && pin <= P1_7 && function == 0) { *PBDC(n) |= bitmask; } } } else { gpio_multi_guard = (PinName)NC; } } void pin_mode(PinName pin, PinMode mode) { // if (pin == (PinName)NC) { return; } }