mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11XX_11CXX/port_api.c@30:91c1d09ada54, 2013-09-25 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Sep 25 10:30:04 2013 +0100
- Revision:
- 30:91c1d09ada54
Synchronized with git revision 8f57c1e84759991fa81ede0da2b4aabe8530fa09
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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mbed_official | 30:91c1d09ada54 | 1 | /* mbed Microcontroller Library |
mbed_official | 30:91c1d09ada54 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 30:91c1d09ada54 | 3 | * |
mbed_official | 30:91c1d09ada54 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 30:91c1d09ada54 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 30:91c1d09ada54 | 6 | * You may obtain a copy of the License at |
mbed_official | 30:91c1d09ada54 | 7 | * |
mbed_official | 30:91c1d09ada54 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 30:91c1d09ada54 | 9 | * |
mbed_official | 30:91c1d09ada54 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 30:91c1d09ada54 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 30:91c1d09ada54 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 30:91c1d09ada54 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 30:91c1d09ada54 | 14 | * limitations under the License. |
mbed_official | 30:91c1d09ada54 | 15 | */ |
mbed_official | 30:91c1d09ada54 | 16 | |
mbed_official | 30:91c1d09ada54 | 17 | #include "port_api.h" |
mbed_official | 30:91c1d09ada54 | 18 | #include "pinmap.h" |
mbed_official | 30:91c1d09ada54 | 19 | #include "gpio_api.h" |
mbed_official | 30:91c1d09ada54 | 20 | |
mbed_official | 30:91c1d09ada54 | 21 | // LPC114 IOCON offset table [port][pin] |
mbed_official | 30:91c1d09ada54 | 22 | |
mbed_official | 30:91c1d09ada54 | 23 | static uint8_t iocon_offset[4][12] = { |
mbed_official | 30:91c1d09ada54 | 24 | {0x0c,0x10,0x1c,0x2c,0x30,0x34,0x4c,0x50,0x60,0x64,0x68,0x74}, // PORT 0 |
mbed_official | 30:91c1d09ada54 | 25 | {0x78,0x7c,0x80,0x90,0x94,0xa0,0xa4,0xa8,0x14,0x38,0x6c,0x98}, // PORT 1 |
mbed_official | 30:91c1d09ada54 | 26 | {0x08,0x28,0x5c,0x8c,0x40,0x44,0x00,0x20,0x24,0x54,0x58,0x70}, // PORT 2 |
mbed_official | 30:91c1d09ada54 | 27 | {0x84,0x88,0x9c,0xac,0x3c,0x48} // PORT 3 |
mbed_official | 30:91c1d09ada54 | 28 | }; |
mbed_official | 30:91c1d09ada54 | 29 | |
mbed_official | 30:91c1d09ada54 | 30 | PinName port_pin(PortName port, int pin) { |
mbed_official | 30:91c1d09ada54 | 31 | return (PinName)((port << PORT_SHIFT) | (pin << PIN_SHIFT) | (uint32_t)iocon_offset[port][pin]); |
mbed_official | 30:91c1d09ada54 | 32 | } |
mbed_official | 30:91c1d09ada54 | 33 | |
mbed_official | 30:91c1d09ada54 | 34 | void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { |
mbed_official | 30:91c1d09ada54 | 35 | obj->port = port; |
mbed_official | 30:91c1d09ada54 | 36 | obj->mask = mask; |
mbed_official | 30:91c1d09ada54 | 37 | |
mbed_official | 30:91c1d09ada54 | 38 | LPC_GPIO_TypeDef *port_reg = ((LPC_GPIO_TypeDef *) (LPC_GPIO0_BASE + (port * 0x10000))); |
mbed_official | 30:91c1d09ada54 | 39 | |
mbed_official | 30:91c1d09ada54 | 40 | obj->reg_data = &port_reg->DATA; |
mbed_official | 30:91c1d09ada54 | 41 | obj->reg_dir = &port_reg->DIR; |
mbed_official | 30:91c1d09ada54 | 42 | |
mbed_official | 30:91c1d09ada54 | 43 | uint32_t i; |
mbed_official | 30:91c1d09ada54 | 44 | // The function is set per pin: reuse gpio logic |
mbed_official | 30:91c1d09ada54 | 45 | for (i=0; i<12; i++) { |
mbed_official | 30:91c1d09ada54 | 46 | if (obj->mask & (1<<i)) { |
mbed_official | 30:91c1d09ada54 | 47 | gpio_set(port_pin(obj->port, i)); |
mbed_official | 30:91c1d09ada54 | 48 | } |
mbed_official | 30:91c1d09ada54 | 49 | } |
mbed_official | 30:91c1d09ada54 | 50 | |
mbed_official | 30:91c1d09ada54 | 51 | port_dir(obj, dir); |
mbed_official | 30:91c1d09ada54 | 52 | } |
mbed_official | 30:91c1d09ada54 | 53 | |
mbed_official | 30:91c1d09ada54 | 54 | void port_mode(port_t *obj, PinMode mode) { |
mbed_official | 30:91c1d09ada54 | 55 | uint32_t i; |
mbed_official | 30:91c1d09ada54 | 56 | // The mode is set per pin: reuse pinmap logic |
mbed_official | 30:91c1d09ada54 | 57 | for (i=0; i<12; i++) { |
mbed_official | 30:91c1d09ada54 | 58 | if (obj->mask & (1<<i)) { |
mbed_official | 30:91c1d09ada54 | 59 | pin_mode(port_pin(obj->port, i), mode); |
mbed_official | 30:91c1d09ada54 | 60 | } |
mbed_official | 30:91c1d09ada54 | 61 | } |
mbed_official | 30:91c1d09ada54 | 62 | } |
mbed_official | 30:91c1d09ada54 | 63 | |
mbed_official | 30:91c1d09ada54 | 64 | void port_dir(port_t *obj, PinDirection dir) { |
mbed_official | 30:91c1d09ada54 | 65 | switch (dir) { |
mbed_official | 30:91c1d09ada54 | 66 | case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; |
mbed_official | 30:91c1d09ada54 | 67 | case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; |
mbed_official | 30:91c1d09ada54 | 68 | } |
mbed_official | 30:91c1d09ada54 | 69 | } |
mbed_official | 30:91c1d09ada54 | 70 | |
mbed_official | 30:91c1d09ada54 | 71 | void port_write(port_t *obj, int value) { |
mbed_official | 30:91c1d09ada54 | 72 | *obj->reg_data = (value & obj->mask); |
mbed_official | 30:91c1d09ada54 | 73 | } |
mbed_official | 30:91c1d09ada54 | 74 | |
mbed_official | 30:91c1d09ada54 | 75 | int port_read(port_t *obj) { |
mbed_official | 30:91c1d09ada54 | 76 | return (*obj->reg_data & obj->mask); |
mbed_official | 30:91c1d09ada54 | 77 | } |
mbed_official | 30:91c1d09ada54 | 78 |