mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_TOSHIBA/TARGET_TMPM066/gpio_api.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
172:7d866c31b3c5 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 172:7d866c31b3c5 1 /* mbed Microcontroller Library
AnnaBridge 172:7d866c31b3c5 2 * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2017 All rights reserved
AnnaBridge 172:7d866c31b3c5 3 *
AnnaBridge 172:7d866c31b3c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 172:7d866c31b3c5 5 * you may not use this file except in compliance with the License.
AnnaBridge 172:7d866c31b3c5 6 * You may obtain a copy of the License at
AnnaBridge 172:7d866c31b3c5 7 *
AnnaBridge 172:7d866c31b3c5 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 172:7d866c31b3c5 9 *
AnnaBridge 172:7d866c31b3c5 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 172:7d866c31b3c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 172:7d866c31b3c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 172:7d866c31b3c5 13 * See the License for the specific language governing permissions and
AnnaBridge 172:7d866c31b3c5 14 * limitations under the License.
AnnaBridge 172:7d866c31b3c5 15 */
AnnaBridge 172:7d866c31b3c5 16 #include "gpio_api.h"
AnnaBridge 172:7d866c31b3c5 17 #include "PeripheralNames.h"
AnnaBridge 172:7d866c31b3c5 18 #include "pinmap.h"
AnnaBridge 172:7d866c31b3c5 19 #include "mbed_error.h"
AnnaBridge 172:7d866c31b3c5 20
AnnaBridge 172:7d866c31b3c5 21 #define GPIO_DATA PIN_DATA(0, 3)
AnnaBridge 172:7d866c31b3c5 22 extern const PinMap PinMap_GPIO_IRQ[];
AnnaBridge 172:7d866c31b3c5 23
AnnaBridge 172:7d866c31b3c5 24 uint32_t gpio_set(PinName pin)
AnnaBridge 172:7d866c31b3c5 25 {
AnnaBridge 172:7d866c31b3c5 26 // Check that pin is valid
AnnaBridge 172:7d866c31b3c5 27 MBED_ASSERT(pin != (PinName)NC);
AnnaBridge 172:7d866c31b3c5 28
AnnaBridge 172:7d866c31b3c5 29 // Checking pin name is not interrupt pins
AnnaBridge 172:7d866c31b3c5 30 if (pinmap_find_peripheral(pin, PinMap_GPIO_IRQ) == (uint32_t) NC) {
AnnaBridge 172:7d866c31b3c5 31 // Set pin function as GPIO pin
AnnaBridge 172:7d866c31b3c5 32 pin_function(pin, GPIO_DATA);
AnnaBridge 172:7d866c31b3c5 33 }
AnnaBridge 172:7d866c31b3c5 34
AnnaBridge 172:7d866c31b3c5 35 // Return pin mask
AnnaBridge 172:7d866c31b3c5 36 return (1 << (pin & 0x07));
AnnaBridge 172:7d866c31b3c5 37 }
AnnaBridge 172:7d866c31b3c5 38
AnnaBridge 172:7d866c31b3c5 39 void gpio_init(gpio_t *obj, PinName pin)
AnnaBridge 172:7d866c31b3c5 40 {
AnnaBridge 172:7d866c31b3c5 41 // Store above pin mask, pin name into GPIO object
AnnaBridge 172:7d866c31b3c5 42 obj->pin = pin;
AnnaBridge 172:7d866c31b3c5 43 obj->mask = gpio_set(pin);
AnnaBridge 172:7d866c31b3c5 44 obj->port = (GPIO_Port) (pin >> 3);
AnnaBridge 172:7d866c31b3c5 45 if ((PortName)obj->port == PortH) {
AnnaBridge 172:7d866c31b3c5 46 CG_SetFcPeriphA(CG_FC_PERIPH_PORTH, ENABLE);
AnnaBridge 172:7d866c31b3c5 47 }
AnnaBridge 172:7d866c31b3c5 48 if ((PortName)obj->port == PortJ) {
AnnaBridge 172:7d866c31b3c5 49 CG_SetFcPeriphA(CG_FC_PERIPH_PORTJ, ENABLE);
AnnaBridge 172:7d866c31b3c5 50 }
AnnaBridge 172:7d866c31b3c5 51 }
AnnaBridge 172:7d866c31b3c5 52
AnnaBridge 172:7d866c31b3c5 53 void gpio_mode(gpio_t *obj, PinMode mode)
AnnaBridge 172:7d866c31b3c5 54 {
AnnaBridge 172:7d866c31b3c5 55 // Set pin mode
AnnaBridge 172:7d866c31b3c5 56 pin_mode(obj->pin, mode);
AnnaBridge 172:7d866c31b3c5 57 }
AnnaBridge 172:7d866c31b3c5 58
AnnaBridge 172:7d866c31b3c5 59 void gpio_dir(gpio_t *obj, PinDirection direction)
AnnaBridge 172:7d866c31b3c5 60 {
AnnaBridge 172:7d866c31b3c5 61 // Set direction
AnnaBridge 172:7d866c31b3c5 62 switch (direction) {
AnnaBridge 172:7d866c31b3c5 63 case PIN_INPUT:
AnnaBridge 172:7d866c31b3c5 64 // Set pin input
AnnaBridge 172:7d866c31b3c5 65 GPIO_SetInput(obj->port, obj->mask);
AnnaBridge 172:7d866c31b3c5 66 break;
AnnaBridge 172:7d866c31b3c5 67 case PIN_OUTPUT:
AnnaBridge 172:7d866c31b3c5 68 // Set pin output
AnnaBridge 172:7d866c31b3c5 69 GPIO_SetOutput(obj->port, obj->mask);
AnnaBridge 172:7d866c31b3c5 70 break;
AnnaBridge 172:7d866c31b3c5 71 case PIN_INOUT:
AnnaBridge 172:7d866c31b3c5 72 // Set pin both input and output
AnnaBridge 172:7d866c31b3c5 73 GPIO_SetOutputEnableReg(obj->port, obj->mask, ENABLE);
AnnaBridge 172:7d866c31b3c5 74 GPIO_SetInputEnableReg(obj->port, obj->mask, ENABLE);
AnnaBridge 172:7d866c31b3c5 75 break;
AnnaBridge 172:7d866c31b3c5 76 default:
AnnaBridge 172:7d866c31b3c5 77 error("Invalid direction\n");
AnnaBridge 172:7d866c31b3c5 78 break;
AnnaBridge 172:7d866c31b3c5 79 }
AnnaBridge 172:7d866c31b3c5 80 }
AnnaBridge 172:7d866c31b3c5 81
AnnaBridge 172:7d866c31b3c5 82 void gpio_write(gpio_t *obj, int value)
AnnaBridge 172:7d866c31b3c5 83 {
AnnaBridge 172:7d866c31b3c5 84 // Write gpio object pin data
AnnaBridge 172:7d866c31b3c5 85 if ((value == 0) || (value == 1)) {
AnnaBridge 172:7d866c31b3c5 86 GPIO_WriteDataBit(obj->port, obj->mask, value);
AnnaBridge 172:7d866c31b3c5 87 } else {
AnnaBridge 172:7d866c31b3c5 88 error("Invalid value\n");
AnnaBridge 172:7d866c31b3c5 89 }
AnnaBridge 172:7d866c31b3c5 90 }
AnnaBridge 172:7d866c31b3c5 91
AnnaBridge 172:7d866c31b3c5 92 int gpio_read(gpio_t *obj)
AnnaBridge 172:7d866c31b3c5 93 {
AnnaBridge 172:7d866c31b3c5 94 // Read gpio object pin data
AnnaBridge 172:7d866c31b3c5 95 return GPIO_ReadDataBit(obj->port, obj->mask);
AnnaBridge 172:7d866c31b3c5 96 }