mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11XX_11CXX/port_api.c
- Committer:
- janekm
- Date:
- 2014-09-16
- Revision:
- 310:6188e0254baa
- Parent:
- 30:91c1d09ada54
File content as of revision 310:6188e0254baa:
/* 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" // LPC114 IOCON offset table [port][pin] static uint8_t iocon_offset[4][12] = { {0x0c,0x10,0x1c,0x2c,0x30,0x34,0x4c,0x50,0x60,0x64,0x68,0x74}, // PORT 0 {0x78,0x7c,0x80,0x90,0x94,0xa0,0xa4,0xa8,0x14,0x38,0x6c,0x98}, // PORT 1 {0x08,0x28,0x5c,0x8c,0x40,0x44,0x00,0x20,0x24,0x54,0x58,0x70}, // PORT 2 {0x84,0x88,0x9c,0xac,0x3c,0x48} // PORT 3 }; PinName port_pin(PortName port, int pin) { return (PinName)((port << PORT_SHIFT) | (pin << PIN_SHIFT) | (uint32_t)iocon_offset[port][pin]); } void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { obj->port = port; obj->mask = mask; LPC_GPIO_TypeDef *port_reg = ((LPC_GPIO_TypeDef *) (LPC_GPIO0_BASE + (port * 0x10000))); obj->reg_data = &port_reg->DATA; obj->reg_dir = &port_reg->DIR; uint32_t i; // The function is set per pin: reuse gpio logic for (i=0; i<12; 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<12; 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_data = (value & obj->mask); } int port_read(port_t *obj) { return (*obj->reg_data & obj->mask); }