Ben Katz / mbed-dev_spine

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Dependents:   SPIne CH_Communicatuin_Test CH_Communicatuin_Test2 MCP_SPIne ... more

Fork of mbed-dev-f303 by Ben Katz

targets/TARGET_Freescale/TARGET_KLXX/port_api.c@179:97f825502e2a, 2018-05-02 (annotated)

Committer:
benkatz
Date:
Wed May 02 18:08:16 2018 +0000
Revision:
179:97f825502e2a
Parent:
149:156823d33999 

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


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/* mbed Microcontroller Library





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 * Copyright (c) 2006-2013 ARM Limited





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 *





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 * Licensed under the Apache License, Version 2.0 (the "License");





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 * you may not use this file except in compliance with the License.





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 * You may obtain a copy of the License at





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 *





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 *     http://www.apache.org/licenses/LICENSE-2.0





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 *





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 * Unless required by applicable law or agreed to in writing, software





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 * distributed under the License is distributed on an "AS IS" BASIS,





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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.





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 * See the License for the specific language governing permissions and





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 * limitations under the License.





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 */





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#include "port_api.h"





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#include "pinmap.h"





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#include "gpio_api.h"





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PinName port_pin(PortName port, int pin_n) {





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    return (PinName)((port << PORT_SHIFT) | (pin_n << 2));





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}





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void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {





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    obj->port = port;





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    obj->mask = mask;





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#if defined(TARGET_KL43Z)





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    GPIO_Type *reg = (GPIO_Type *)(GPIOA_BASE + port * 0x40);





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#else





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    FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + port * 0x40);





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#endif





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    obj->reg_out = &reg->PDOR;





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    obj->reg_in  = &reg->PDIR;





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    obj->reg_dir = &reg->PDDR;





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    uint32_t i;





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    // The function is set per pin: reuse gpio logic





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    for (i=0; i<32; i++) {





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        if (obj->mask & (1<<i)) {





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            gpio_set(port_pin(obj->port, i));





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        }





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    }





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    port_dir(obj, dir);





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}





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void port_mode(port_t *obj, PinMode mode) {





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    uint32_t i;





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    // The mode is set per pin: reuse pinmap logic





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    for (i=0; i<32; i++) {





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        if (obj->mask & (1<<i)) {





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            pin_mode(port_pin(obj->port, i), mode);





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        }





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    }





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}





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void port_dir(port_t *obj, PinDirection dir) {





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    switch (dir) {





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        case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;





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        case PIN_OUTPUT: *obj->reg_dir |=  obj->mask; break;





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    }





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}





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void port_write(port_t *obj, int value) {





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    *obj->reg_out = (*obj->reg_in & ~obj->mask) | (value & obj->mask);





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}





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int port_read(port_t *obj) {





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    return (*obj->reg_in & obj->mask);





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}