107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/*****************************************************************************
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* | File : DEV_Config.c
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* | Author : Waveshare team
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* | Function : Hardware underlying interface
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* | Info :
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* Used to shield the underlying layers of each master
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* and enhance portability
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*----------------
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* | This version: V2.0
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* | Date : 2018-10-30
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* | Info :
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* 1.add:
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* UBYTE\UWORD\UDOUBLE
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* 2.Change:
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* EPD_RST -> EPD_RST_PIN
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* EPD_DC -> EPD_DC_PIN
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* EPD_CS -> EPD_CS_PIN
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* EPD_BUSY -> EPD_BUSY_PIN
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* 3.Remote:
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* EPD_RST_1\EPD_RST_0
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* EPD_DC_1\EPD_DC_0
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* EPD_CS_1\EPD_CS_0
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* EPD_BUSY_1\EPD_BUSY_0
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* 4.add:
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* #define DEV_Digital_Write(_pin, _value) bcm2835_gpio_write(_pin, _value)
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* #define DEV_Digital_Read(_pin) bcm2835_gpio_lev(_pin)
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* #define DEV_SPI_WriteByte(__value) bcm2835_spi_transfer(__value)
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "DEV_Config.h"
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#include <errno.h>
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/******************************************************************************
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function: Initialization pin
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parameter:
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Info:
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******************************************************************************/
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static void DEV_GPIOConfig(void)
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{
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//output
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pinMode(EPD_RST_PIN, OUTPUT);
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pinMode(EPD_DC_PIN, OUTPUT);
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pinMode(EPD_CS_PIN, OUTPUT);
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//intput
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pinMode(EPD_BUSY_PIN, INPUT);
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}
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void DEV_SPI_WriteByte(UBYTE value)
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{
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int read_data;
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read_data = wiringPiSPIDataRW(0,&value,1);
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if(read_data < 0)
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perror("wiringPiSPIDataRW failed\r\n");
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}
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/******************************************************************************
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function: Module Initialize, the BCM2835 library and initialize the pins, SPI protocol
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parameter:
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Info:
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******************************************************************************/
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UBYTE DEV_ModuleInit(void)
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{
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//if(wiringPiSetup() < 0)//use wiringpi Pin number table
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if(wiringPiSetupGpio() < 0) { //use BCM2835 Pin number table
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printf("set wiringPi lib failed !!! \r\n");
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return 1;
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} else {
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printf("set wiringPi lib success !!! \r\n");
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}
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DEV_GPIOConfig();
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//wiringPiSPISetup(0,9000000);
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wiringPiSPISetupMode(0, 32000000, 0);
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return 0;
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}
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/******************************************************************************
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function: Module exits, closes SPI and BCM2835 library
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parameter:
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Info:
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******************************************************************************/
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void DEV_ModuleExit(void)
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{
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}
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