Ben Katz / mbed-dev-f303

mbed library sources. Supersedes mbed-src.

Dependents:   Hobbyking_Cheetah_Compact Hobbyking_Cheetah_Compact_DRV8323_14bit Hobbyking_Cheetah_Compact_DRV8323_V51_201907 HKC_MiniCheetah ... more

Fork of mbed-dev by mbed official

targets/hal/TARGET_ARM_SSG/TARGET_MPS2/gpio_api.c@80:bdf1132a57cf, 2016-03-02 (annotated)

Committer:
mbed_official
Date:
Wed Mar 02 14:30:11 2016 +0000
Revision:
80:bdf1132a57cf
Parent:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Synchronized with git revision de3b14ec9234d586b155fd24badc22775489a3dc



Full URL: https://github.com/mbedmicro/mbed/commit/de3b14ec9234d586b155fd24badc22775489a3dc/



latest changes to add arduino support, plus fixes for IOTSS BEID

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2015 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #include "gpio_api.h"
bogdanm 0:9b334a45a8ff 17 #include "pinmap.h"
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 // function to enable the GPIO pin
bogdanm 0:9b334a45a8ff 20 uint32_t gpio_set(PinName pin) {
mbed_official 80:bdf1132a57cf 21 return (1);
bogdanm 0:9b334a45a8ff 22 }
bogdanm 0:9b334a45a8ff 23
bogdanm 0:9b334a45a8ff 24 //function to initialise the gpio pin
bogdanm 0:9b334a45a8ff 25 // this links the board control bits for each pin
bogdanm 0:9b334a45a8ff 26 // with the object created for the pin
bogdanm 0:9b334a45a8ff 27 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 80:bdf1132a57cf 28 if(pin == NC){ return;}
mbed_official 80:bdf1132a57cf 29 else {
mbed_official 80:bdf1132a57cf 30 int pin_value = 0;
mbed_official 80:bdf1132a57cf 31 obj->pin = pin;
mbed_official 80:bdf1132a57cf 32 if(pin <=15){
mbed_official 80:bdf1132a57cf 33 pin_value = pin;
mbed_official 80:bdf1132a57cf 34 }else if (pin >= 16 && pin <= 31){
mbed_official 80:bdf1132a57cf 35 pin_value = pin-16;
mbed_official 80:bdf1132a57cf 36 }else if (pin >= 32 && pin <= 47){
mbed_official 80:bdf1132a57cf 37 pin_value = pin-32;
mbed_official 80:bdf1132a57cf 38 }else if (pin >= 48 && pin <= 51){
mbed_official 80:bdf1132a57cf 39 pin_value = pin-48;
mbed_official 80:bdf1132a57cf 40 }else if (pin == 100 || pin == 101){
mbed_official 80:bdf1132a57cf 41 pin_value = pin-100;
mbed_official 80:bdf1132a57cf 42 }else if (pin == 110 || pin == 111){
mbed_official 80:bdf1132a57cf 43 pin_value = pin-110;
mbed_official 80:bdf1132a57cf 44 }else if (pin >= 200 && pin <= 207){
mbed_official 80:bdf1132a57cf 45 pin_value = pin-200;
mbed_official 80:bdf1132a57cf 46 }else if (pin >= 210 && pin <= 217){
mbed_official 80:bdf1132a57cf 47 pin_value = pin-210;
mbed_official 80:bdf1132a57cf 48 }else if (pin == 303){
mbed_official 80:bdf1132a57cf 49 pin_value = pin-302;
mbed_official 80:bdf1132a57cf 50 }else if (pin == 307){
mbed_official 80:bdf1132a57cf 51 pin_value = pin-307;
mbed_official 80:bdf1132a57cf 52 }else if (pin == 308){
mbed_official 80:bdf1132a57cf 53 pin_value = pin-305;
mbed_official 80:bdf1132a57cf 54 }else if (pin == 309){
mbed_official 80:bdf1132a57cf 55 pin_value = pin-305;
mbed_official 80:bdf1132a57cf 56 }else if (pin == 310){
mbed_official 80:bdf1132a57cf 57 pin_value = pin-305;
mbed_official 80:bdf1132a57cf 58 }else if (pin == 311){
mbed_official 80:bdf1132a57cf 59 pin_value = pin-305;
mbed_official 80:bdf1132a57cf 60 }else if (pin == 323){
mbed_official 80:bdf1132a57cf 61 pin_value = pin-315;
mbed_official 80:bdf1132a57cf 62 }else if (pin == 334){
mbed_official 80:bdf1132a57cf 63 pin_value = pin-325;
mbed_official 80:bdf1132a57cf 64 }else if (pin == 653){
mbed_official 80:bdf1132a57cf 65 pin_value = pin-646;
mbed_official 80:bdf1132a57cf 66 }
mbed_official 80:bdf1132a57cf 67
mbed_official 80:bdf1132a57cf 68 obj->mask = 0x1 << pin_value;
mbed_official 80:bdf1132a57cf 69 obj->pin_number = pin;
mbed_official 80:bdf1132a57cf 70 if(pin <=15) {
mbed_official 80:bdf1132a57cf 71 obj->reg_data = &CMSDK_GPIO0->DATAOUT ;
mbed_official 80:bdf1132a57cf 72 obj->reg_in = &CMSDK_GPIO0->DATA ;
mbed_official 80:bdf1132a57cf 73 obj->reg_dir = &CMSDK_GPIO0->OUTENABLESET ;
mbed_official 80:bdf1132a57cf 74 obj->reg_dirclr = &CMSDK_GPIO0->OUTENABLECLR ;
mbed_official 80:bdf1132a57cf 75 } else if (pin >= 16 && pin <= 31){
mbed_official 80:bdf1132a57cf 76 obj->reg_data = &CMSDK_GPIO1->DATAOUT ;
mbed_official 80:bdf1132a57cf 77 obj->reg_in = &CMSDK_GPIO1->DATA ;
mbed_official 80:bdf1132a57cf 78 obj->reg_dir = &CMSDK_GPIO1->OUTENABLESET ;
mbed_official 80:bdf1132a57cf 79 obj->reg_dirclr = &CMSDK_GPIO1->OUTENABLECLR ;
mbed_official 80:bdf1132a57cf 80 } else if (pin >= 32 && pin <= 47){
mbed_official 80:bdf1132a57cf 81 obj->reg_data = &CMSDK_GPIO2->DATAOUT;
mbed_official 80:bdf1132a57cf 82 obj->reg_in = &CMSDK_GPIO2->DATA;
mbed_official 80:bdf1132a57cf 83 obj->reg_dir = &CMSDK_GPIO2->OUTENABLESET ;
mbed_official 80:bdf1132a57cf 84 obj->reg_dirclr = &CMSDK_GPIO2->OUTENABLECLR ;
mbed_official 80:bdf1132a57cf 85 } else if (pin >= 48 && pin <= 51){
mbed_official 80:bdf1132a57cf 86 obj->reg_data = &CMSDK_GPIO3->DATAOUT;
mbed_official 80:bdf1132a57cf 87 obj->reg_in = &CMSDK_GPIO3->DATA;
mbed_official 80:bdf1132a57cf 88 obj->reg_dir = &CMSDK_GPIO3->OUTENABLESET ;
mbed_official 80:bdf1132a57cf 89 obj->reg_dirclr = &CMSDK_GPIO3->OUTENABLECLR ;
mbed_official 80:bdf1132a57cf 90 } else if (pin == 100 || pin == 101){
mbed_official 80:bdf1132a57cf 91 obj->reg_data = &MPS2_FPGAIO->LED; //user leds
mbed_official 80:bdf1132a57cf 92 obj->reg_in = &MPS2_FPGAIO->LED;
mbed_official 80:bdf1132a57cf 93 } else if (pin == 110 || pin == 111){
mbed_official 80:bdf1132a57cf 94 obj->reg_data = &MPS2_FPGAIO->BUTTON; //user switches
mbed_official 80:bdf1132a57cf 95 obj->reg_in = &MPS2_FPGAIO->BUTTON; //user switches
mbed_official 80:bdf1132a57cf 96 }else if (pin >= 200 && pin <= 207){
mbed_official 80:bdf1132a57cf 97 obj->reg_data = &MPS2_SCC->LEDS; //mcc leds
mbed_official 80:bdf1132a57cf 98 obj->reg_in = &MPS2_SCC->LEDS; //mcc leds
mbed_official 80:bdf1132a57cf 99 }else if (pin >= 210 && pin <= 217){
mbed_official 80:bdf1132a57cf 100 obj->reg_in = &MPS2_SCC->SWITCHES; //mcc switches
mbed_official 80:bdf1132a57cf 101 }else if (pin == 303 || pin == 307){
mbed_official 80:bdf1132a57cf 102 obj->reg_data = &MPS2_FPGAIO->MISC; //spi chip select = 303, clcd chip select = 307
mbed_official 80:bdf1132a57cf 103 }else if (pin == 308 || pin == 309 || pin == 310 || pin == 311){
mbed_official 80:bdf1132a57cf 104 obj->reg_data = &MPS2_FPGAIO->MISC; //clcd control bits
mbed_official 80:bdf1132a57cf 105 }else if (pin == 323 || pin == 334 || pin == 653){ //spi 3 chip select = 323, spi 4 chip select = 334, adc chip select = 653
mbed_official 80:bdf1132a57cf 106 obj->reg_data = &MPS2_FPGAIO->MISC; //spi cs bits
mbed_official 80:bdf1132a57cf 107 }
mbed_official 80:bdf1132a57cf 108
mbed_official 80:bdf1132a57cf 109 if (pin == 323){
mbed_official 80:bdf1132a57cf 110 CMSDK_GPIO0->ALTFUNCSET |= 0x1000;
mbed_official 80:bdf1132a57cf 111 }else if (pin == 334){
mbed_official 80:bdf1132a57cf 112 CMSDK_GPIO2->ALTFUNCSET |= 0x0040;
mbed_official 80:bdf1132a57cf 113 }else if (pin == 653){
mbed_official 80:bdf1132a57cf 114 CMSDK_GPIO1->ALTFUNCSET |= 0x0001;
mbed_official 80:bdf1132a57cf 115 }
mbed_official 80:bdf1132a57cf 116 }
bogdanm 0:9b334a45a8ff 117 }
bogdanm 0:9b334a45a8ff 118
bogdanm 0:9b334a45a8ff 119 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 80:bdf1132a57cf 120 pin_mode(obj->pin, mode);
bogdanm 0:9b334a45a8ff 121 }
bogdanm 0:9b334a45a8ff 122
bogdanm 0:9b334a45a8ff 123 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 80:bdf1132a57cf 124 if(obj->pin >= 0 && obj->pin <= 51)
mbed_official 80:bdf1132a57cf 125 {
bogdanm 0:9b334a45a8ff 126 switch (direction) {
bogdanm 0:9b334a45a8ff 127 case PIN_INPUT : *obj->reg_dirclr = obj->mask; break;
bogdanm 0:9b334a45a8ff 128 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
bogdanm 0:9b334a45a8ff 129 }
bogdanm 0:9b334a45a8ff 130 } else {return;}
bogdanm 0:9b334a45a8ff 131 }
bogdanm 0:9b334a45a8ff 132
bogdanm 0:9b334a45a8ff 133 int gpio_is_connected(const gpio_t *obj){
mbed_official 80:bdf1132a57cf 134 if(obj->pin != (PinName)NC){
mbed_official 80:bdf1132a57cf 135 return 1;
mbed_official 80:bdf1132a57cf 136 } else {
mbed_official 80:bdf1132a57cf 137 return 0;
mbed_official 80:bdf1132a57cf 138 }
bogdanm 0:9b334a45a8ff 139 }
bogdanm 0:9b334a45a8ff 140