mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NORDIC/TARGET_NRF51822/port_api.c@85:e1a8e879a6a9, 2014-02-07 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Feb 07 18:00:11 2014 +0000
- Revision:
- 85:e1a8e879a6a9
- Child:
- 104:a6a92e2e5a92
Synchronized with git revision 4b2b368a6a3b1f0fd33d99917981c67436c4aebe
Full URL: https://github.com/mbedmicro/mbed/commit/4b2b368a6a3b1f0fd33d99917981c67436c4aebe/
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 85:e1a8e879a6a9 | 1 | /* mbed Microcontroller Library |
mbed_official | 85:e1a8e879a6a9 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 85:e1a8e879a6a9 | 3 | * |
mbed_official | 85:e1a8e879a6a9 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 85:e1a8e879a6a9 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 85:e1a8e879a6a9 | 6 | * You may obtain a copy of the License at |
mbed_official | 85:e1a8e879a6a9 | 7 | * |
mbed_official | 85:e1a8e879a6a9 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 85:e1a8e879a6a9 | 9 | * |
mbed_official | 85:e1a8e879a6a9 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 85:e1a8e879a6a9 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 85:e1a8e879a6a9 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 85:e1a8e879a6a9 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 85:e1a8e879a6a9 | 14 | * limitations under the License. |
mbed_official | 85:e1a8e879a6a9 | 15 | */ |
mbed_official | 85:e1a8e879a6a9 | 16 | #include "port_api.h" |
mbed_official | 85:e1a8e879a6a9 | 17 | #include "pinmap.h" |
mbed_official | 85:e1a8e879a6a9 | 18 | #include "gpio_api.h" |
mbed_official | 85:e1a8e879a6a9 | 19 | |
mbed_official | 85:e1a8e879a6a9 | 20 | PinName port_pin(PortName port, int pin_n) { |
mbed_official | 85:e1a8e879a6a9 | 21 | return (PinName)(pin_n); |
mbed_official | 85:e1a8e879a6a9 | 22 | } |
mbed_official | 85:e1a8e879a6a9 | 23 | |
mbed_official | 85:e1a8e879a6a9 | 24 | void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { |
mbed_official | 85:e1a8e879a6a9 | 25 | obj->port = port; |
mbed_official | 85:e1a8e879a6a9 | 26 | obj->mask = mask; |
mbed_official | 85:e1a8e879a6a9 | 27 | |
mbed_official | 85:e1a8e879a6a9 | 28 | obj->reg_out = &NRF_GPIO->OUT; |
mbed_official | 85:e1a8e879a6a9 | 29 | obj->reg_in = &NRF_GPIO->IN; |
mbed_official | 85:e1a8e879a6a9 | 30 | obj->reg_cnf = NRF_GPIO->PIN_CNF; |
mbed_official | 85:e1a8e879a6a9 | 31 | |
mbed_official | 85:e1a8e879a6a9 | 32 | port_dir(obj, dir); |
mbed_official | 85:e1a8e879a6a9 | 33 | } |
mbed_official | 85:e1a8e879a6a9 | 34 | |
mbed_official | 85:e1a8e879a6a9 | 35 | void port_mode(port_t *obj, PinMode mode) { |
mbed_official | 85:e1a8e879a6a9 | 36 | uint32_t i; |
mbed_official | 85:e1a8e879a6a9 | 37 | // The mode is set per pin: reuse pinmap logic |
mbed_official | 85:e1a8e879a6a9 | 38 | for (i=0; i<31; i++) { |
mbed_official | 85:e1a8e879a6a9 | 39 | if (obj->mask & (1<<i)) { |
mbed_official | 85:e1a8e879a6a9 | 40 | pin_mode(port_pin(obj->port, i), mode); |
mbed_official | 85:e1a8e879a6a9 | 41 | } |
mbed_official | 85:e1a8e879a6a9 | 42 | } |
mbed_official | 85:e1a8e879a6a9 | 43 | } |
mbed_official | 85:e1a8e879a6a9 | 44 | |
mbed_official | 85:e1a8e879a6a9 | 45 | void port_dir(port_t *obj, PinDirection dir) { |
mbed_official | 85:e1a8e879a6a9 | 46 | int i; |
mbed_official | 85:e1a8e879a6a9 | 47 | switch (dir) { |
mbed_official | 85:e1a8e879a6a9 | 48 | case PIN_INPUT : |
mbed_official | 85:e1a8e879a6a9 | 49 | for (i=0; i<31; i++) { |
mbed_official | 85:e1a8e879a6a9 | 50 | if (obj->mask & (1<<i)) { |
mbed_official | 85:e1a8e879a6a9 | 51 | obj->reg_cnf[i] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
mbed_official | 85:e1a8e879a6a9 | 52 | | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
mbed_official | 85:e1a8e879a6a9 | 53 | | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
mbed_official | 85:e1a8e879a6a9 | 54 | | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos); |
mbed_official | 85:e1a8e879a6a9 | 55 | } |
mbed_official | 85:e1a8e879a6a9 | 56 | } |
mbed_official | 85:e1a8e879a6a9 | 57 | break; |
mbed_official | 85:e1a8e879a6a9 | 58 | case PIN_OUTPUT: |
mbed_official | 85:e1a8e879a6a9 | 59 | for (i=0; i<31; i++) { |
mbed_official | 85:e1a8e879a6a9 | 60 | if (obj->mask & (1<<i)) { |
mbed_official | 85:e1a8e879a6a9 | 61 | obj->reg_cnf[i] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
mbed_official | 85:e1a8e879a6a9 | 62 | | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
mbed_official | 85:e1a8e879a6a9 | 63 | | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
mbed_official | 85:e1a8e879a6a9 | 64 | | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
mbed_official | 85:e1a8e879a6a9 | 65 | | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos); |
mbed_official | 85:e1a8e879a6a9 | 66 | } |
mbed_official | 85:e1a8e879a6a9 | 67 | } |
mbed_official | 85:e1a8e879a6a9 | 68 | break; |
mbed_official | 85:e1a8e879a6a9 | 69 | } |
mbed_official | 85:e1a8e879a6a9 | 70 | } |
mbed_official | 85:e1a8e879a6a9 | 71 | |
mbed_official | 85:e1a8e879a6a9 | 72 | void port_write(port_t *obj, int value) { |
mbed_official | 85:e1a8e879a6a9 | 73 | *obj->reg_out = value; |
mbed_official | 85:e1a8e879a6a9 | 74 | } |
mbed_official | 85:e1a8e879a6a9 | 75 | |
mbed_official | 85:e1a8e879a6a9 | 76 | int port_read(port_t *obj) { |
mbed_official | 85:e1a8e879a6a9 | 77 | return (*obj->reg_in); |
mbed_official | 85:e1a8e879a6a9 | 78 | } |