Mouse code for the MacroRat
mbed-dev/targets/TARGET_ARM_SSG/TARGET_MPS2/gpio_api.c
- Committer:
- sahilmgandhi
- Date:
- 2017-05-14
- Revision:
- 18:6a4db94011d3
File content as of revision 18:6a4db94011d3:
/* mbed Microcontroller Library * Copyright (c) 2006-2015 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "gpio_api.h" #include "pinmap.h" // function to enable the GPIO pin uint32_t gpio_set(PinName pin) { return (1); } //function to initialise the gpio pin // this links the board control bits for each pin // with the object created for the pin void gpio_init(gpio_t *obj, PinName pin) { if(pin == NC){ return;} else { int pin_value = 0; obj->pin = pin; if(pin <=15){ pin_value = pin; }else if (pin >= 16 && pin <= 31){ pin_value = pin-16; }else if (pin >= 32 && pin <= 47){ pin_value = pin-32; }else if (pin >= 48 && pin <= 51){ pin_value = pin-48; }else if (pin == 100 || pin == 101){ pin_value = pin-100; }else if (pin == 110 || pin == 111){ pin_value = pin-110; }else if (pin >= 200 && pin <= 207){ pin_value = pin-200; }else if (pin >= 210 && pin <= 217){ pin_value = pin-210; }else if (pin == 303){ pin_value = pin-302; }else if (pin == 307){ pin_value = pin-307; }else if (pin == 308){ pin_value = pin-305; }else if (pin == 309){ pin_value = pin-305; }else if (pin == 310){ pin_value = pin-305; }else if (pin == 311){ pin_value = pin-305; }else if (pin == 323){ pin_value = pin-315; }else if (pin == 334){ pin_value = pin-325; }else if (pin == 653){ pin_value = pin-646; } obj->mask = 0x1 << pin_value; obj->pin_number = pin; if(pin <=15) { obj->reg_data = &CMSDK_GPIO0->DATAOUT ; obj->reg_in = &CMSDK_GPIO0->DATA ; obj->reg_dir = &CMSDK_GPIO0->OUTENABLESET ; obj->reg_dirclr = &CMSDK_GPIO0->OUTENABLECLR ; } else if (pin >= 16 && pin <= 31){ obj->reg_data = &CMSDK_GPIO1->DATAOUT ; obj->reg_in = &CMSDK_GPIO1->DATA ; obj->reg_dir = &CMSDK_GPIO1->OUTENABLESET ; obj->reg_dirclr = &CMSDK_GPIO1->OUTENABLECLR ; } else if (pin >= 32 && pin <= 47){ obj->reg_data = &CMSDK_GPIO2->DATAOUT; obj->reg_in = &CMSDK_GPIO2->DATA; obj->reg_dir = &CMSDK_GPIO2->OUTENABLESET ; obj->reg_dirclr = &CMSDK_GPIO2->OUTENABLECLR ; } else if (pin >= 48 && pin <= 51){ obj->reg_data = &CMSDK_GPIO3->DATAOUT; obj->reg_in = &CMSDK_GPIO3->DATA; obj->reg_dir = &CMSDK_GPIO3->OUTENABLESET ; obj->reg_dirclr = &CMSDK_GPIO3->OUTENABLECLR ; } else if (pin == 100 || pin == 101){ obj->reg_data = &MPS2_FPGAIO->LED; //user leds obj->reg_in = &MPS2_FPGAIO->LED; } else if (pin == 110 || pin == 111){ obj->reg_data = &MPS2_FPGAIO->BUTTON; //user switches obj->reg_in = &MPS2_FPGAIO->BUTTON; //user switches }else if (pin >= 200 && pin <= 207){ obj->reg_data = &MPS2_SCC->LEDS; //mcc leds obj->reg_in = &MPS2_SCC->LEDS; //mcc leds }else if (pin >= 210 && pin <= 217){ obj->reg_in = &MPS2_SCC->SWITCHES; //mcc switches }else if (pin == 303 || pin == 307){ obj->reg_data = &MPS2_FPGAIO->MISC; //spi chip select = 303, clcd chip select = 307 }else if (pin == 308 || pin == 309 || pin == 310 || pin == 311){ obj->reg_data = &MPS2_FPGAIO->MISC; //clcd control bits }else if (pin == 323 || pin == 334 || pin == 653){ //spi 3 chip select = 323, spi 4 chip select = 334, adc chip select = 653 obj->reg_data = &MPS2_FPGAIO->MISC; //spi cs bits } if (pin == 323){ CMSDK_GPIO0->ALTFUNCSET |= 0x1000; }else if (pin == 334){ CMSDK_GPIO2->ALTFUNCSET |= 0x0040; }else if (pin == 653){ CMSDK_GPIO1->ALTFUNCSET |= 0x0001; } } } void gpio_mode(gpio_t *obj, PinMode mode) { pin_mode(obj->pin, mode); } void gpio_dir(gpio_t *obj, PinDirection direction) { if(obj->pin >= 0 && obj->pin <= 51) { switch (direction) { case PIN_INPUT : *obj->reg_dirclr = obj->mask; break; case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; } } else {return;} } int gpio_is_connected(const gpio_t *obj){ if(obj->pin != (PinName)NC){ return 1; } else { return 0; } }