mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/hal/TARGET_Freescale/TARGET_K20XX/port_api.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)
- Committer:
- <>
- Date:
- Fri Sep 02 15:07:44 2016 +0100
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 0:9b334a45a8ff
This updates the lib to the mbed lib v125
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /* mbed Microcontroller Library |
<> | 144:ef7eb2e8f9f7 | 2 | * Copyright (c) 2006-2015 ARM Limited |
<> | 144:ef7eb2e8f9f7 | 3 | * |
<> | 144:ef7eb2e8f9f7 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
<> | 144:ef7eb2e8f9f7 | 5 | * you may not use this file except in compliance with the License. |
<> | 144:ef7eb2e8f9f7 | 6 | * You may obtain a copy of the License at |
<> | 144:ef7eb2e8f9f7 | 7 | * |
<> | 144:ef7eb2e8f9f7 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
<> | 144:ef7eb2e8f9f7 | 9 | * |
<> | 144:ef7eb2e8f9f7 | 10 | * Unless required by applicable law or agreed to in writing, software |
<> | 144:ef7eb2e8f9f7 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
<> | 144:ef7eb2e8f9f7 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
<> | 144:ef7eb2e8f9f7 | 13 | * See the License for the specific language governing permissions and |
<> | 144:ef7eb2e8f9f7 | 14 | * limitations under the License. |
<> | 144:ef7eb2e8f9f7 | 15 | */ |
<> | 144:ef7eb2e8f9f7 | 16 | #include "port_api.h" |
<> | 144:ef7eb2e8f9f7 | 17 | #include "pinmap.h" |
<> | 144:ef7eb2e8f9f7 | 18 | #include "gpio_api.h" |
<> | 144:ef7eb2e8f9f7 | 19 | |
<> | 144:ef7eb2e8f9f7 | 20 | PinName port_pin(PortName port, int pin_n) { |
<> | 144:ef7eb2e8f9f7 | 21 | return (PinName)((port << PORT_SHIFT) | (pin_n << 2)); |
<> | 144:ef7eb2e8f9f7 | 22 | } |
<> | 144:ef7eb2e8f9f7 | 23 | |
<> | 144:ef7eb2e8f9f7 | 24 | void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { |
<> | 144:ef7eb2e8f9f7 | 25 | obj->port = port; |
<> | 144:ef7eb2e8f9f7 | 26 | obj->mask = mask; |
<> | 144:ef7eb2e8f9f7 | 27 | |
<> | 144:ef7eb2e8f9f7 | 28 | GPIO_Type *reg = (GPIO_Type *)(PTA_BASE + port * 0x40); |
<> | 144:ef7eb2e8f9f7 | 29 | |
<> | 144:ef7eb2e8f9f7 | 30 | obj->reg_out = ®->PDOR; |
<> | 144:ef7eb2e8f9f7 | 31 | obj->reg_in = ®->PDIR; |
<> | 144:ef7eb2e8f9f7 | 32 | obj->reg_dir = ®->PDDR; |
<> | 144:ef7eb2e8f9f7 | 33 | |
<> | 144:ef7eb2e8f9f7 | 34 | uint32_t i; |
<> | 144:ef7eb2e8f9f7 | 35 | // The function is set per pin: reuse gpio logic |
<> | 144:ef7eb2e8f9f7 | 36 | for (i=0; i<32; i++) { |
<> | 144:ef7eb2e8f9f7 | 37 | if (obj->mask & (1<<i)) { |
<> | 144:ef7eb2e8f9f7 | 38 | gpio_set(port_pin(obj->port, i)); |
<> | 144:ef7eb2e8f9f7 | 39 | } |
<> | 144:ef7eb2e8f9f7 | 40 | } |
<> | 144:ef7eb2e8f9f7 | 41 | |
<> | 144:ef7eb2e8f9f7 | 42 | port_dir(obj, dir); |
<> | 144:ef7eb2e8f9f7 | 43 | } |
<> | 144:ef7eb2e8f9f7 | 44 | |
<> | 144:ef7eb2e8f9f7 | 45 | void port_mode(port_t *obj, PinMode mode) { |
<> | 144:ef7eb2e8f9f7 | 46 | uint32_t i; |
<> | 144:ef7eb2e8f9f7 | 47 | // The mode is set per pin: reuse pinmap logic |
<> | 144:ef7eb2e8f9f7 | 48 | for (i=0; i<32; i++) { |
<> | 144:ef7eb2e8f9f7 | 49 | if (obj->mask & (1<<i)) { |
<> | 144:ef7eb2e8f9f7 | 50 | pin_mode(port_pin(obj->port, i), mode); |
<> | 144:ef7eb2e8f9f7 | 51 | } |
<> | 144:ef7eb2e8f9f7 | 52 | } |
<> | 144:ef7eb2e8f9f7 | 53 | } |
<> | 144:ef7eb2e8f9f7 | 54 | |
<> | 144:ef7eb2e8f9f7 | 55 | void port_dir(port_t *obj, PinDirection dir) { |
<> | 144:ef7eb2e8f9f7 | 56 | switch (dir) { |
<> | 144:ef7eb2e8f9f7 | 57 | case PIN_INPUT : |
<> | 144:ef7eb2e8f9f7 | 58 | *obj->reg_dir &= ~obj->mask; |
<> | 144:ef7eb2e8f9f7 | 59 | break; |
<> | 144:ef7eb2e8f9f7 | 60 | case PIN_OUTPUT: |
<> | 144:ef7eb2e8f9f7 | 61 | *obj->reg_dir |= obj->mask; |
<> | 144:ef7eb2e8f9f7 | 62 | break; |
<> | 144:ef7eb2e8f9f7 | 63 | } |
<> | 144:ef7eb2e8f9f7 | 64 | } |
<> | 144:ef7eb2e8f9f7 | 65 | |
<> | 144:ef7eb2e8f9f7 | 66 | void port_write(port_t *obj, int value) { |
<> | 144:ef7eb2e8f9f7 | 67 | *obj->reg_out = (*obj->reg_in & ~obj->mask) | (value & obj->mask); |
<> | 144:ef7eb2e8f9f7 | 68 | } |
<> | 144:ef7eb2e8f9f7 | 69 | |
<> | 144:ef7eb2e8f9f7 | 70 | int port_read(port_t *obj) { |
<> | 144:ef7eb2e8f9f7 | 71 | return (*obj->reg_in & obj->mask); |
<> | 144:ef7eb2e8f9f7 | 72 | } |