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lib/DEV_Config.c

+/*****************************************************************************
+* | File      	:   DEV_Config.c
+* | Author      :   Waveshare team
+* | Function    :   Hardware underlying interface
+* | Info        :
+*----------------
+* |	This version:   V3.0
+* | Date        :   2019-07-31
+* | Info        :   
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of theex Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "DEV_Config.h"
+
+
+
+/**
+ * GPIO
+**/
+int EPD_RST_PIN     = 7;
+int EPD_DC_PIN      = 9;
+int EPD_CS_PIN      = 13;
+int EPD_CLK_PIN     = 10;
+int EPD_MOSI_PIN    = 11;
+uint slice_num;
+/**
+ * GPIO read and write
+**/
+void DEV_Digital_Write(UWORD Pin, UBYTE Value)
+{
+	gpio_put(Pin, Value);
+}
+
+UBYTE DEV_Digital_Read(UWORD Pin)
+{
+	return gpio_get(Pin);
+}
+
+/**
+ * SPI
+**/
+void DEV_SPI_WriteByte(uint8_t Value)
+{
+    spi_write_blocking(SPI_PORT, &Value, 1);
+}
+
+void DEV_SPI_Write_nByte(uint8_t *pData, uint32_t Len)
+{
+    spi_write_blocking(SPI_PORT, pData, Len);
+}
+
+/**
+ * GPIO Mode
+**/
+void DEV_GPIO_Mode(UWORD Pin, UWORD Mode)
+{
+    gpio_init(Pin);
+    if(Mode == 0 || Mode == GPIO_IN) {
+        gpio_set_dir(Pin, GPIO_IN);
+    } else {
+        gpio_set_dir(Pin, GPIO_OUT);
+    }
+}
+
+/**
+ * delay x ms
+**/
+void DEV_Delay_ms(UDOUBLE xms)
+{
+    sleep_ms(xms);
+}
+void DEV_GPIO_Init(void)
+{
+    DEV_GPIO_Mode(EPD_RST_PIN, 1);
+    DEV_GPIO_Mode(EPD_DC_PIN, 1);
+    DEV_GPIO_Mode(EPD_CS_PIN, 1);
+    DEV_Digital_Write(EPD_CS_PIN, 1);
+}
+
+/******************************************************************************
+function:	Module Initialize, the library and initialize the pins, SPI protocol
+parameter:
+Info:
+******************************************************************************/
+UBYTE DEV_Module_Init(void)
+{
+    spi_init(SPI_PORT, 12000 * 1000);
+    gpio_set_function(EPD_CLK_PIN, GPIO_FUNC_SPI);
+    gpio_set_function(EPD_MOSI_PIN, GPIO_FUNC_SPI);
+    // GPIO Config
+    DEV_GPIO_Init();
+    printf("DEV_Module_Init OK \r\n");
+    return 0;
+}
+
+
+/******************************************************************************
+function:	Module exits, closes SPI and BCM2835 library
+parameter:
+Info:
+******************************************************************************/
+void DEV_Module_Exit(void)
+{
+
+}