shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/port_api.c@300:55638feb26a4, 2014-08-27 (annotated)

Committer:
mbed_official
Date:
Wed Aug 27 08:45:06 2014 +0100
Revision:
300:55638feb26a4
Parent:
270:e2babe29baf8 
Synchronized with git revision 90467175c04ad81c20cdf7b2ddb86c54f5f3dcbb



Full URL: https://github.com/mbedmicro/mbed/commit/90467175c04ad81c20cdf7b2ddb86c54f5f3dcbb/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 85:e1a8e879a6a9 1 /* mbed Microcontroller Library
mbed_official 104:a6a92e2e5a92 2 * Copyright (c) 2013 Nordic Semiconductor
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 300:55638feb26a4 20 PinName port_pin(PortName port, int pin_n)
mbed_official 300:55638feb26a4 21 {
mbed_official 85:e1a8e879a6a9 22 return (PinName)(pin_n);
mbed_official 85:e1a8e879a6a9 23 }
mbed_official 85:e1a8e879a6a9 24
mbed_official 300:55638feb26a4 25 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
mbed_official 300:55638feb26a4 26 {
mbed_official 85:e1a8e879a6a9 27 obj->port = port;
mbed_official 300:55638feb26a4 28 obj->mask = mask;
mbed_official 300:55638feb26a4 29
mbed_official 85:e1a8e879a6a9 30 obj->reg_out = &NRF_GPIO->OUT;
mbed_official 85:e1a8e879a6a9 31 obj->reg_in = &NRF_GPIO->IN;
mbed_official 85:e1a8e879a6a9 32 obj->reg_cnf = NRF_GPIO->PIN_CNF;
mbed_official 300:55638feb26a4 33
mbed_official 85:e1a8e879a6a9 34 port_dir(obj, dir);
mbed_official 85:e1a8e879a6a9 35 }
mbed_official 85:e1a8e879a6a9 36
mbed_official 300:55638feb26a4 37 void port_mode(port_t *obj, PinMode mode)
mbed_official 300:55638feb26a4 38 {
mbed_official 85:e1a8e879a6a9 39 uint32_t i;
mbed_official 85:e1a8e879a6a9 40 // The mode is set per pin: reuse pinmap logic
mbed_official 300:55638feb26a4 41 for (i = 0; i<31; i++) {
mbed_official 300:55638feb26a4 42 if (obj->mask & (1 << i)) {
mbed_official 85:e1a8e879a6a9 43 pin_mode(port_pin(obj->port, i), mode);
mbed_official 85:e1a8e879a6a9 44 }
mbed_official 85:e1a8e879a6a9 45 }
mbed_official 85:e1a8e879a6a9 46 }
mbed_official 85:e1a8e879a6a9 47
mbed_official 300:55638feb26a4 48 void port_dir(port_t *obj, PinDirection dir)
mbed_official 300:55638feb26a4 49 {
mbed_official 85:e1a8e879a6a9 50 int i;
mbed_official 85:e1a8e879a6a9 51 switch (dir) {
mbed_official 300:55638feb26a4 52 case PIN_INPUT:
mbed_official 300:55638feb26a4 53 for (i = 0; i<31; i++) {
mbed_official 300:55638feb26a4 54 if (obj->mask & (1 << i)) {
mbed_official 85:e1a8e879a6a9 55 obj->reg_cnf[i] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
mbed_official 85:e1a8e879a6a9 56 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
mbed_official 85:e1a8e879a6a9 57 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
mbed_official 85:e1a8e879a6a9 58 | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
mbed_official 85:e1a8e879a6a9 59 }
mbed_official 85:e1a8e879a6a9 60 }
mbed_official 85:e1a8e879a6a9 61 break;
mbed_official 300:55638feb26a4 62 case PIN_OUTPUT:
mbed_official 300:55638feb26a4 63 for (i = 0; i<31; i++) {
mbed_official 300:55638feb26a4 64 if (obj->mask & (1 << i)) {
mbed_official 85:e1a8e879a6a9 65 obj->reg_cnf[i] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
mbed_official 85:e1a8e879a6a9 66 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
mbed_official 85:e1a8e879a6a9 67 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
mbed_official 85:e1a8e879a6a9 68 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
mbed_official 85:e1a8e879a6a9 69 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
mbed_official 85:e1a8e879a6a9 70 }
mbed_official 85:e1a8e879a6a9 71 }
mbed_official 85:e1a8e879a6a9 72 break;
mbed_official 85:e1a8e879a6a9 73 }
mbed_official 85:e1a8e879a6a9 74 }
mbed_official 85:e1a8e879a6a9 75
mbed_official 300:55638feb26a4 76 void port_write(port_t *obj, int value)
mbed_official 300:55638feb26a4 77 {
mbed_official 85:e1a8e879a6a9 78 *obj->reg_out = value;
mbed_official 85:e1a8e879a6a9 79 }
mbed_official 85:e1a8e879a6a9 80
mbed_official 300:55638feb26a4 81 int port_read(port_t *obj)
mbed_official 300:55638feb26a4 82 {
mbed_official 85:e1a8e879a6a9 83 return (*obj->reg_in);
mbed_official 85:e1a8e879a6a9 84 }