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/TARGET_ARM_SSG/TARGET_MPS2/gpio_api.c@181:36facd806e4a, 2018-07-30 (annotated)

Committer:
benkatz
Date:
Mon Jul 30 20:31:44 2018 +0000
Revision:
181:36facd806e4a
Parent:
149:156823d33999 
going on the robot.  fixed a dumb bug in float_to_uint

Who changed what in which revision?

UserRevisionLine numberNew 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 "gpio_api.h"
<> 144:ef7eb2e8f9f7 17 #include "pinmap.h"
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 // function to enable the GPIO pin
<> 144:ef7eb2e8f9f7 20 uint32_t gpio_set(PinName pin) {
<> 144:ef7eb2e8f9f7 21 return (1);
<> 144:ef7eb2e8f9f7 22 }
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 //function to initialise the gpio pin
<> 144:ef7eb2e8f9f7 25 // this links the board control bits for each pin
<> 144:ef7eb2e8f9f7 26 // with the object created for the pin
<> 144:ef7eb2e8f9f7 27 void gpio_init(gpio_t *obj, PinName pin) {
<> 144:ef7eb2e8f9f7 28 if(pin == NC){ return;}
<> 144:ef7eb2e8f9f7 29 else {
<> 144:ef7eb2e8f9f7 30 int pin_value = 0;
<> 144:ef7eb2e8f9f7 31 obj->pin = pin;
<> 144:ef7eb2e8f9f7 32 if(pin <=15){
<> 144:ef7eb2e8f9f7 33 pin_value = pin;
<> 144:ef7eb2e8f9f7 34 }else if (pin >= 16 && pin <= 31){
<> 144:ef7eb2e8f9f7 35 pin_value = pin-16;
<> 144:ef7eb2e8f9f7 36 }else if (pin >= 32 && pin <= 47){
<> 144:ef7eb2e8f9f7 37 pin_value = pin-32;
<> 144:ef7eb2e8f9f7 38 }else if (pin >= 48 && pin <= 51){
<> 144:ef7eb2e8f9f7 39 pin_value = pin-48;
<> 144:ef7eb2e8f9f7 40 }else if (pin == 100 || pin == 101){
<> 144:ef7eb2e8f9f7 41 pin_value = pin-100;
<> 144:ef7eb2e8f9f7 42 }else if (pin == 110 || pin == 111){
<> 144:ef7eb2e8f9f7 43 pin_value = pin-110;
<> 144:ef7eb2e8f9f7 44 }else if (pin >= 200 && pin <= 207){
<> 144:ef7eb2e8f9f7 45 pin_value = pin-200;
<> 144:ef7eb2e8f9f7 46 }else if (pin >= 210 && pin <= 217){
<> 144:ef7eb2e8f9f7 47 pin_value = pin-210;
<> 144:ef7eb2e8f9f7 48 }else if (pin == 303){
<> 144:ef7eb2e8f9f7 49 pin_value = pin-302;
<> 144:ef7eb2e8f9f7 50 }else if (pin == 307){
<> 144:ef7eb2e8f9f7 51 pin_value = pin-307;
<> 144:ef7eb2e8f9f7 52 }else if (pin == 308){
<> 144:ef7eb2e8f9f7 53 pin_value = pin-305;
<> 144:ef7eb2e8f9f7 54 }else if (pin == 309){
<> 144:ef7eb2e8f9f7 55 pin_value = pin-305;
<> 144:ef7eb2e8f9f7 56 }else if (pin == 310){
<> 144:ef7eb2e8f9f7 57 pin_value = pin-305;
<> 144:ef7eb2e8f9f7 58 }else if (pin == 311){
<> 144:ef7eb2e8f9f7 59 pin_value = pin-305;
<> 144:ef7eb2e8f9f7 60 }else if (pin == 323){
<> 144:ef7eb2e8f9f7 61 pin_value = pin-315;
<> 144:ef7eb2e8f9f7 62 }else if (pin == 334){
<> 144:ef7eb2e8f9f7 63 pin_value = pin-325;
<> 144:ef7eb2e8f9f7 64 }else if (pin == 653){
<> 144:ef7eb2e8f9f7 65 pin_value = pin-646;
<> 144:ef7eb2e8f9f7 66 }
<> 144:ef7eb2e8f9f7 67
<> 144:ef7eb2e8f9f7 68 obj->mask = 0x1 << pin_value;
<> 144:ef7eb2e8f9f7 69 obj->pin_number = pin;
<> 144:ef7eb2e8f9f7 70 if(pin <=15) {
<> 144:ef7eb2e8f9f7 71 obj->reg_data = &CMSDK_GPIO0->DATAOUT ;
<> 144:ef7eb2e8f9f7 72 obj->reg_in = &CMSDK_GPIO0->DATA ;
<> 144:ef7eb2e8f9f7 73 obj->reg_dir = &CMSDK_GPIO0->OUTENABLESET ;
<> 144:ef7eb2e8f9f7 74 obj->reg_dirclr = &CMSDK_GPIO0->OUTENABLECLR ;
<> 144:ef7eb2e8f9f7 75 } else if (pin >= 16 && pin <= 31){
<> 144:ef7eb2e8f9f7 76 obj->reg_data = &CMSDK_GPIO1->DATAOUT ;
<> 144:ef7eb2e8f9f7 77 obj->reg_in = &CMSDK_GPIO1->DATA ;
<> 144:ef7eb2e8f9f7 78 obj->reg_dir = &CMSDK_GPIO1->OUTENABLESET ;
<> 144:ef7eb2e8f9f7 79 obj->reg_dirclr = &CMSDK_GPIO1->OUTENABLECLR ;
<> 144:ef7eb2e8f9f7 80 } else if (pin >= 32 && pin <= 47){
<> 144:ef7eb2e8f9f7 81 obj->reg_data = &CMSDK_GPIO2->DATAOUT;
<> 144:ef7eb2e8f9f7 82 obj->reg_in = &CMSDK_GPIO2->DATA;
<> 144:ef7eb2e8f9f7 83 obj->reg_dir = &CMSDK_GPIO2->OUTENABLESET ;
<> 144:ef7eb2e8f9f7 84 obj->reg_dirclr = &CMSDK_GPIO2->OUTENABLECLR ;
<> 144:ef7eb2e8f9f7 85 } else if (pin >= 48 && pin <= 51){
<> 144:ef7eb2e8f9f7 86 obj->reg_data = &CMSDK_GPIO3->DATAOUT;
<> 144:ef7eb2e8f9f7 87 obj->reg_in = &CMSDK_GPIO3->DATA;
<> 144:ef7eb2e8f9f7 88 obj->reg_dir = &CMSDK_GPIO3->OUTENABLESET ;
<> 144:ef7eb2e8f9f7 89 obj->reg_dirclr = &CMSDK_GPIO3->OUTENABLECLR ;
<> 144:ef7eb2e8f9f7 90 } else if (pin == 100 || pin == 101){
<> 144:ef7eb2e8f9f7 91 obj->reg_data = &MPS2_FPGAIO->LED; //user leds
<> 144:ef7eb2e8f9f7 92 obj->reg_in = &MPS2_FPGAIO->LED;
<> 144:ef7eb2e8f9f7 93 } else if (pin == 110 || pin == 111){
<> 144:ef7eb2e8f9f7 94 obj->reg_data = &MPS2_FPGAIO->BUTTON; //user switches
<> 144:ef7eb2e8f9f7 95 obj->reg_in = &MPS2_FPGAIO->BUTTON; //user switches
<> 144:ef7eb2e8f9f7 96 }else if (pin >= 200 && pin <= 207){
<> 144:ef7eb2e8f9f7 97 obj->reg_data = &MPS2_SCC->LEDS; //mcc leds
<> 144:ef7eb2e8f9f7 98 obj->reg_in = &MPS2_SCC->LEDS; //mcc leds
<> 144:ef7eb2e8f9f7 99 }else if (pin >= 210 && pin <= 217){
<> 144:ef7eb2e8f9f7 100 obj->reg_in = &MPS2_SCC->SWITCHES; //mcc switches
<> 144:ef7eb2e8f9f7 101 }else if (pin == 303 || pin == 307){
<> 144:ef7eb2e8f9f7 102 obj->reg_data = &MPS2_FPGAIO->MISC; //spi chip select = 303, clcd chip select = 307
<> 144:ef7eb2e8f9f7 103 }else if (pin == 308 || pin == 309 || pin == 310 || pin == 311){
<> 144:ef7eb2e8f9f7 104 obj->reg_data = &MPS2_FPGAIO->MISC; //clcd control bits
<> 144:ef7eb2e8f9f7 105 }else if (pin == 323 || pin == 334 || pin == 653){ //spi 3 chip select = 323, spi 4 chip select = 334, adc chip select = 653
<> 144:ef7eb2e8f9f7 106 obj->reg_data = &MPS2_FPGAIO->MISC; //spi cs bits
<> 144:ef7eb2e8f9f7 107 }
<> 144:ef7eb2e8f9f7 108
<> 144:ef7eb2e8f9f7 109 if (pin == 323){
<> 144:ef7eb2e8f9f7 110 CMSDK_GPIO0->ALTFUNCSET |= 0x1000;
<> 144:ef7eb2e8f9f7 111 }else if (pin == 334){
<> 144:ef7eb2e8f9f7 112 CMSDK_GPIO2->ALTFUNCSET |= 0x0040;
<> 144:ef7eb2e8f9f7 113 }else if (pin == 653){
<> 144:ef7eb2e8f9f7 114 CMSDK_GPIO1->ALTFUNCSET |= 0x0001;
<> 144:ef7eb2e8f9f7 115 }
<> 144:ef7eb2e8f9f7 116 }
<> 144:ef7eb2e8f9f7 117 }
<> 144:ef7eb2e8f9f7 118
<> 144:ef7eb2e8f9f7 119 void gpio_mode(gpio_t *obj, PinMode mode) {
<> 144:ef7eb2e8f9f7 120 pin_mode(obj->pin, mode);
<> 144:ef7eb2e8f9f7 121 }
<> 144:ef7eb2e8f9f7 122
<> 144:ef7eb2e8f9f7 123 void gpio_dir(gpio_t *obj, PinDirection direction) {
<> 144:ef7eb2e8f9f7 124 if(obj->pin >= 0 && obj->pin <= 51)
<> 144:ef7eb2e8f9f7 125 {
<> 144:ef7eb2e8f9f7 126 switch (direction) {
<> 144:ef7eb2e8f9f7 127 case PIN_INPUT : *obj->reg_dirclr = obj->mask; break;
<> 144:ef7eb2e8f9f7 128 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
<> 144:ef7eb2e8f9f7 129 }
<> 144:ef7eb2e8f9f7 130 } else {return;}
<> 144:ef7eb2e8f9f7 131 }
<> 144:ef7eb2e8f9f7 132
<> 144:ef7eb2e8f9f7 133 int gpio_is_connected(const gpio_t *obj){
<> 144:ef7eb2e8f9f7 134 if(obj->pin != (PinName)NC){
<> 144:ef7eb2e8f9f7 135 return 1;
<> 144:ef7eb2e8f9f7 136 } else {
<> 144:ef7eb2e8f9f7 137 return 0;
<> 144:ef7eb2e8f9f7 138 }
<> 144:ef7eb2e8f9f7 139 }
<> 144:ef7eb2e8f9f7 140