138 lines
3.3 KiB
C
138 lines
3.3 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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*----------------
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* | This version: V3.0
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* | Date : 2019-07-31
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* | Info :
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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 theex 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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#define SPI_PORT spi1
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/**
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* GPIO
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**/
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int EPD_RST_PIN;
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int EPD_DC_PIN;
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int EPD_CS_PIN;
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int EPD_BUSY_PIN;
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int EPD_CLK_PIN;
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int EPD_MOSI_PIN;
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/**
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* GPIO read and write
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**/
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void DEV_Digital_Write(UWORD Pin, UBYTE Value)
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{
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gpio_put(Pin, Value);
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}
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UBYTE DEV_Digital_Read(UWORD Pin)
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{
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return gpio_get(Pin);
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}
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/**
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* SPI
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**/
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void DEV_SPI_WriteByte(uint8_t Value)
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{
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spi_write_blocking(SPI_PORT, &Value, 1);
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}
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void DEV_SPI_Write_nByte(uint8_t *pData, uint32_t Len)
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{
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spi_write_blocking(SPI_PORT, pData, Len);
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}
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/**
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* GPIO Mode
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**/
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void DEV_GPIO_Mode(UWORD Pin, UWORD Mode)
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{
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gpio_init(Pin);
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if(Mode == 0 || Mode == GPIO_IN) {
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gpio_set_dir(Pin, GPIO_IN);
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} else {
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gpio_set_dir(Pin, GPIO_OUT);
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}
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}
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/**
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* delay x ms
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**/
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void DEV_Delay_ms(UDOUBLE xms)
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{
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sleep_ms(xms);
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}
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void DEV_GPIO_Init(void)
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{
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EPD_RST_PIN = 12;
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EPD_DC_PIN = 8;
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EPD_BUSY_PIN = 13;
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EPD_CS_PIN = 9;
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EPD_CLK_PIN = 10;
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EPD_MOSI_PIN = 11;
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DEV_GPIO_Mode(EPD_RST_PIN, 1);
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DEV_GPIO_Mode(EPD_DC_PIN, 1);
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DEV_GPIO_Mode(EPD_CS_PIN, 1);
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DEV_GPIO_Mode(EPD_BUSY_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function: Module Initialize, the 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_Module_Init(void)
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{
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stdio_init_all();
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// GPIO Config
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DEV_GPIO_Init();
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spi_init(SPI_PORT, 4000 * 1000);
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gpio_set_function(EPD_CLK_PIN, GPIO_FUNC_SPI);
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gpio_set_function(EPD_MOSI_PIN, GPIO_FUNC_SPI);
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printf("DEV_Module_Init OK \r\n");
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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_Module_Exit(void)
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{
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}
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