Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/api/gpio_api.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
Parent:
121:7f86b4238bec 
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 121:7f86b4238bec 1 /* mbed Microcontroller Library
mbed_official 121:7f86b4238bec 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 121:7f86b4238bec 3 *
mbed_official 121:7f86b4238bec 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 121:7f86b4238bec 5 * you may not use this file except in compliance with the License.
mbed_official 121:7f86b4238bec 6 * You may obtain a copy of the License at
mbed_official 121:7f86b4238bec 7 *
mbed_official 121:7f86b4238bec 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 121:7f86b4238bec 9 *
mbed_official 121:7f86b4238bec 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 121:7f86b4238bec 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 121:7f86b4238bec 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 121:7f86b4238bec 13 * See the License for the specific language governing permissions and
mbed_official 121:7f86b4238bec 14 * limitations under the License.
mbed_official 121:7f86b4238bec 15 */
mbed_official 121:7f86b4238bec 16 #include "mbed_assert.h"
mbed_official 121:7f86b4238bec 17 #include "gpio_api.h"
mbed_official 121:7f86b4238bec 18 #include "pinmap.h"
mbed_official 121:7f86b4238bec 19 #include "fsl_port.h"
<> 144:ef7eb2e8f9f7 20 #include "fsl_gpio.h"
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 static GPIO_Type * const gpio_addrs[] = GPIO_BASE_PTRS;
mbed_official 121:7f86b4238bec 23
mbed_official 121:7f86b4238bec 24 uint32_t gpio_set(PinName pin) {
mbed_official 121:7f86b4238bec 25 MBED_ASSERT(pin != (PinName)NC);
mbed_official 121:7f86b4238bec 26 uint32_t pin_num = pin & 0xFF;
mbed_official 121:7f86b4238bec 27
mbed_official 121:7f86b4238bec 28 pin_function(pin, (int)kPORT_MuxAsGpio);
mbed_official 121:7f86b4238bec 29 return 1 << pin_num;
mbed_official 121:7f86b4238bec 30 }
mbed_official 121:7f86b4238bec 31
mbed_official 121:7f86b4238bec 32 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 121:7f86b4238bec 33 obj->pin = pin;
mbed_official 121:7f86b4238bec 34 if (pin == (PinName)NC)
mbed_official 121:7f86b4238bec 35 return;
mbed_official 121:7f86b4238bec 36
mbed_official 121:7f86b4238bec 37 pin_function(pin, (int)kPORT_MuxAsGpio);
mbed_official 121:7f86b4238bec 38 }
mbed_official 121:7f86b4238bec 39
mbed_official 121:7f86b4238bec 40 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 121:7f86b4238bec 41 pin_mode(obj->pin, mode);
mbed_official 121:7f86b4238bec 42 }
mbed_official 121:7f86b4238bec 43
mbed_official 121:7f86b4238bec 44 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 121:7f86b4238bec 45 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 121:7f86b4238bec 46 uint32_t port = obj->pin >> GPIO_PORT_SHIFT;
mbed_official 121:7f86b4238bec 47 uint32_t pin_num = obj->pin & 0xFF;
mbed_official 121:7f86b4238bec 48 GPIO_Type *base = gpio_addrs[port];
mbed_official 121:7f86b4238bec 49
mbed_official 121:7f86b4238bec 50 switch (direction) {
mbed_official 121:7f86b4238bec 51 case PIN_INPUT:
mbed_official 121:7f86b4238bec 52 base->PDDR &= ~(1U << pin_num);
mbed_official 121:7f86b4238bec 53 break;
mbed_official 121:7f86b4238bec 54 case PIN_OUTPUT:
mbed_official 121:7f86b4238bec 55 base->PDDR |= (1U << pin_num);
mbed_official 121:7f86b4238bec 56 break;
mbed_official 121:7f86b4238bec 57 }
mbed_official 121:7f86b4238bec 58 }
<> 144:ef7eb2e8f9f7 59
<> 144:ef7eb2e8f9f7 60 void gpio_write(gpio_t *obj, int value) {
<> 144:ef7eb2e8f9f7 61 MBED_ASSERT(obj->pin != (PinName)NC);
<> 144:ef7eb2e8f9f7 62 uint32_t port = obj->pin >> GPIO_PORT_SHIFT;
<> 144:ef7eb2e8f9f7 63 uint32_t pin = obj->pin & 0xFF;
<> 144:ef7eb2e8f9f7 64
<> 144:ef7eb2e8f9f7 65 GPIO_WritePinOutput(gpio_addrs[port], pin, value);
<> 144:ef7eb2e8f9f7 66 }
<> 144:ef7eb2e8f9f7 67
<> 144:ef7eb2e8f9f7 68 int gpio_read(gpio_t *obj) {
<> 144:ef7eb2e8f9f7 69 MBED_ASSERT(obj->pin != (PinName)NC);
<> 144:ef7eb2e8f9f7 70 uint32_t port = obj->pin >> GPIO_PORT_SHIFT;
<> 144:ef7eb2e8f9f7 71 uint32_t pin = obj->pin & 0xFF;
<> 144:ef7eb2e8f9f7 72
<> 144:ef7eb2e8f9f7 73 return (int)GPIO_ReadPinInput(gpio_addrs[port], pin);
<> 144:ef7eb2e8f9f7 74 }