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@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
80:bdf1132a57cf
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

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) {
bogdanm 0:9b334a45a8ff 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) {
bogdanm 0:9b334a45a8ff 28 if(pin == NC){ return;}
bogdanm 0:9b334a45a8ff 29 else {
bogdanm 0:9b334a45a8ff 30 int pin_value = 0;
bogdanm 0:9b334a45a8ff 31 obj->pin = pin;
bogdanm 0:9b334a45a8ff 32 if(pin <=15){
bogdanm 0:9b334a45a8ff 33 pin_value = pin;
bogdanm 0:9b334a45a8ff 34 }else if (pin >= 16 && pin <= 31){
bogdanm 0:9b334a45a8ff 35 pin_value = pin-16;
bogdanm 0:9b334a45a8ff 36 }else if (pin >= 32 && pin <= 47){
bogdanm 0:9b334a45a8ff 37 pin_value = pin-32;
bogdanm 0:9b334a45a8ff 38 }else if (pin >= 48 && pin <= 51){
bogdanm 0:9b334a45a8ff 39 pin_value = pin-48;
bogdanm 0:9b334a45a8ff 40 }else if (pin == 100 || pin == 101){
bogdanm 0:9b334a45a8ff 41 pin_value = pin-100;
bogdanm 0:9b334a45a8ff 42 }else if (pin == 110 || pin == 111){
bogdanm 0:9b334a45a8ff 43 pin_value = pin-110;
bogdanm 0:9b334a45a8ff 44 }else if (pin >= 200 && pin <= 207){
bogdanm 0:9b334a45a8ff 45 pin_value = pin-200;
bogdanm 0:9b334a45a8ff 46 }else if (pin >= 210 && pin <= 217){
bogdanm 0:9b334a45a8ff 47 pin_value = pin-210;
bogdanm 0:9b334a45a8ff 48 }else if (pin == 303){
bogdanm 0:9b334a45a8ff 49 pin_value = pin-302;
bogdanm 0:9b334a45a8ff 50 }else if (pin == 307){
bogdanm 0:9b334a45a8ff 51 pin_value = pin-307;
bogdanm 0:9b334a45a8ff 52 }else if (pin == 308){
bogdanm 0:9b334a45a8ff 53 pin_value = pin-305;
bogdanm 0:9b334a45a8ff 54 }else if (pin == 309){
bogdanm 0:9b334a45a8ff 55 pin_value = pin-305;
bogdanm 0:9b334a45a8ff 56 }else if (pin == 310){
bogdanm 0:9b334a45a8ff 57 pin_value = pin-305;
bogdanm 0:9b334a45a8ff 58 }else if (pin == 311){
bogdanm 0:9b334a45a8ff 59 pin_value = pin-305;
bogdanm 0:9b334a45a8ff 60 }
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 obj->mask = 0x1 << pin_value;
bogdanm 0:9b334a45a8ff 63 obj->pin_number = pin;
bogdanm 0:9b334a45a8ff 64 if(pin <=15) {
bogdanm 0:9b334a45a8ff 65 obj->reg_data = &CMSDK_GPIO0->DATAOUT ;
bogdanm 0:9b334a45a8ff 66 obj->reg_in = &CMSDK_GPIO0->DATA ;
bogdanm 0:9b334a45a8ff 67 obj->reg_dir = &CMSDK_GPIO0->OUTENABLESET ;
bogdanm 0:9b334a45a8ff 68 obj->reg_dirclr = &CMSDK_GPIO0->OUTENABLECLR ;
bogdanm 0:9b334a45a8ff 69 } else if (pin >= 16 && pin <= 31){
bogdanm 0:9b334a45a8ff 70 obj->reg_data = &CMSDK_GPIO1->DATAOUT ;
bogdanm 0:9b334a45a8ff 71 obj->reg_in = &CMSDK_GPIO1->DATA ;
bogdanm 0:9b334a45a8ff 72 obj->reg_dir = &CMSDK_GPIO1->OUTENABLESET ;
bogdanm 0:9b334a45a8ff 73 obj->reg_dirclr = &CMSDK_GPIO1->OUTENABLECLR ;
bogdanm 0:9b334a45a8ff 74 } else if (pin >= 32 && pin <= 47){
bogdanm 0:9b334a45a8ff 75 obj->reg_data = &CMSDK_GPIO2->DATAOUT;
bogdanm 0:9b334a45a8ff 76 obj->reg_in = &CMSDK_GPIO2->DATA;
bogdanm 0:9b334a45a8ff 77 obj->reg_dir = &CMSDK_GPIO2->OUTENABLESET ;
bogdanm 0:9b334a45a8ff 78 obj->reg_dirclr = &CMSDK_GPIO2->OUTENABLECLR ;
bogdanm 0:9b334a45a8ff 79 } else if (pin >= 48 && pin <= 51){
bogdanm 0:9b334a45a8ff 80 obj->reg_data = &CMSDK_GPIO3->DATAOUT;
bogdanm 0:9b334a45a8ff 81 obj->reg_in = &CMSDK_GPIO3->DATA;
bogdanm 0:9b334a45a8ff 82 obj->reg_dir = &CMSDK_GPIO3->OUTENABLESET ;
bogdanm 0:9b334a45a8ff 83 obj->reg_dirclr = &CMSDK_GPIO3->OUTENABLECLR ;
bogdanm 0:9b334a45a8ff 84 } else if (pin == 100 || pin == 101){
bogdanm 0:9b334a45a8ff 85 obj->reg_data = &MPS2_FPGAIO->LED; //user leds
bogdanm 0:9b334a45a8ff 86 obj->reg_in = &MPS2_FPGAIO->LED;
bogdanm 0:9b334a45a8ff 87 } else if (pin == 110 || pin == 111){
bogdanm 0:9b334a45a8ff 88 obj->reg_data = &MPS2_FPGAIO->BUTTON; //user switches
bogdanm 0:9b334a45a8ff 89 obj->reg_in = &MPS2_FPGAIO->BUTTON; //user switches
bogdanm 0:9b334a45a8ff 90 }else if (pin >= 200 && pin <= 207){
bogdanm 0:9b334a45a8ff 91 obj->reg_data = &MPS2_SCC->LEDS; //mcc leds
bogdanm 0:9b334a45a8ff 92 obj->reg_in = &MPS2_SCC->LEDS; //mcc leds
bogdanm 0:9b334a45a8ff 93 }else if (pin >= 210 && pin <= 217){
bogdanm 0:9b334a45a8ff 94 obj->reg_in = &MPS2_SCC->SWITCHES; //mcc switches
bogdanm 0:9b334a45a8ff 95 }else if (pin == 303 || pin == 307){
bogdanm 0:9b334a45a8ff 96 obj->reg_data = &MPS2_FPGAIO->MISC; //spi chip select = 303, clcd chip select = 307
bogdanm 0:9b334a45a8ff 97 }else if (pin == 308 || pin == 309 || pin == 310 || pin == 311){
bogdanm 0:9b334a45a8ff 98 obj->reg_data = &MPS2_FPGAIO->MISC; //clcd control bits
bogdanm 0:9b334a45a8ff 99 }
bogdanm 0:9b334a45a8ff 100 }
bogdanm 0:9b334a45a8ff 101 }
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103 void gpio_mode(gpio_t *obj, PinMode mode) {
bogdanm 0:9b334a45a8ff 104 pin_mode(obj->pin, mode);
bogdanm 0:9b334a45a8ff 105 }
bogdanm 0:9b334a45a8ff 106
bogdanm 0:9b334a45a8ff 107 void gpio_dir(gpio_t *obj, PinDirection direction) {
bogdanm 0:9b334a45a8ff 108 if(obj->pin >= 0 && obj->pin <= 51)
bogdanm 0:9b334a45a8ff 109 {
bogdanm 0:9b334a45a8ff 110 switch (direction) {
bogdanm 0:9b334a45a8ff 111 case PIN_INPUT : *obj->reg_dirclr = obj->mask; break;
bogdanm 0:9b334a45a8ff 112 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
bogdanm 0:9b334a45a8ff 113 }
bogdanm 0:9b334a45a8ff 114 } else {return;}
bogdanm 0:9b334a45a8ff 115 }
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 int gpio_is_connected(const gpio_t *obj){
bogdanm 0:9b334a45a8ff 118 if(obj->pin != (PinName)NC){
bogdanm 0:9b334a45a8ff 119 return 1;
bogdanm 0:9b334a45a8ff 120 } else {
bogdanm 0:9b334a45a8ff 121 return 0;
bogdanm 0:9b334a45a8ff 122 }
bogdanm 0:9b334a45a8ff 123 }
bogdanm 0:9b334a45a8ff 124