mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/port_api.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 300:55638feb26a4
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New 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 | } |