From 385a3627114686d2caadc8f2c0c80e5f04a70f55 Mon Sep 17 00:00:00 2001
From: MDC Service <michael.schmid@mdc-service.de>
Date: Wed, 25 May 2022 13:10:39 +0200
Subject: added drivers in own folder

---
 software/drivers/board_rev_B.cpp | 117 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 software/drivers/board_rev_B.cpp

(limited to 'software/drivers/board_rev_B.cpp')

diff --git a/software/drivers/board_rev_B.cpp b/software/drivers/board_rev_B.cpp
new file mode 100644
index 0000000..da2b00e
--- /dev/null
+++ b/software/drivers/board_rev_B.cpp
@@ -0,0 +1,117 @@
+/*
+ * board_rev_B.cpp
+ *
+ *  Created on: 26.02.2022
+ *      Author: michi
+ *  SPDX-FileCopyrightText: 2022 MDC Service <info@mdc-service.de>
+ *  SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/queue.h"
+#include "driver/gpio.h"
+#include "driver/i2c.h"
+#include "schrank_ant_pcb.h" //contains setting of board revision
+
+#ifdef ESP32_BOARD_REV_B
+#include "board_rev_B.hpp"
+
+/**
+ * io_init: initalize Rev. B boards
+ *
+ */
+
+void io_init(void)
+{
+	#define GPO_BIT_MASK 0 //we dont have GPIO as outputs, all output is done via I2C Port Expander
+/* as we have not ouput, leave default settings
+	gpio_config_t o_conf;
+	o_conf.intr_type = GPIO_INTR_DISABLE;
+	o_conf.mode = GPIO_MODE_OUTPUT;
+	o_conf.pin_bit_mask = GPO_BIT_MASK;
+	o_conf.pull_down_en = GPIO_PULLDOWN_ENABLE;
+	o_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+	gpio_config(&o_conf);
+*/	
+	//gpio_set_level((gpio_num_t) PHY_PWR, 1);
+
+	// inputs
+
+	#define IRQ2Esp 34
+	#define I2Cext_INT 35
+	 #define GPI_BIT_MASK ((1ULL<<IRQ2Esp) | (1ULL<<I2Cext_INT)) 
+	 //io_conf.pin_bit_mask = (1ULL<<15);//bit mask of the pins that you want to set,e.g.GPIO15
+	 gpio_config_t i_conf;
+	 i_conf.intr_type = GPIO_INTR_DISABLE;
+	 i_conf.mode = GPIO_MODE_INPUT;
+	 i_conf.pin_bit_mask = GPI_BIT_MASK;
+	 i_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+	 i_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+	 gpio_config(&i_conf);
+	 
+}
+
+
+
+
+esp_err_t i2c_init(void) {	
+	int res1,res2;
+	int I2C_master_port = I2C_MASTER_NUM;
+	uint8_t I2C_buf[5];
+	i2c_config_t I2C_conf = { .mode = I2C_MODE_MASTER, .sda_io_num = I2C_MASTER_SDA_IO, .scl_io_num = I2C_MASTER_SCL_IO, .sda_pullup_en = GPIO_PULLUP_ENABLE, .scl_pullup_en = GPIO_PULLUP_ENABLE, .master { .clk_speed = I2C_MASTER_FREQ_HZ, } };
+	i2c_param_config(I2C_master_port, &I2C_conf);
+		
+	printf("\nInstall i2c_driver: Mode=%d sda_io_num=%d scl_io_num=%d\n", I2C_MODE_MASTER, I2C_MASTER_SDA_IO, I2C_MASTER_SCL_IO);
+	res1=i2c_driver_install(I2C_master_port, I2C_conf.mode,
+	I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE, 0);	
+	ESP_ERROR_CHECK_WITHOUT_ABORT(res1);
+	printf("After i2c_driver_install\n");
+	vTaskDelay(500 / portTICK_PERIOD_MS);
+
+//1. Init AW9523 on address 0x00
+	I2C_buf[0] = 0x7F;	// write to AW9523 Soft Reset register
+	I2C_buf[1] = 0x00;	// write data to output port 1
+	I2C_buf[2] = 0x00;	// write data to output port 1
+	printf("I2C write to bus %d to I2C-Adress %d byte0 = %d byte 1 = %d\n", I2C_MASTER_NUM, I2C_PORTEXP1, I2C_buf[0], I2C_buf[1] );
+	res1 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP1, I2C_buf, 3, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
+	printf("I2C write to bus %d to I2C-Adress %d byte0 = %d byte 1 = %d\n", I2C_MASTER_NUM, I2C_PORTEXP2, I2C_buf[0], I2C_buf[1] );
+	res2 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP2, I2C_buf, 3, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
+	printf("\nMaster wrote %d %d %02X\n", res1,res2,I2C_buf[0]);
+	printf("After AW9523 soft-RESET\n");
+	vTaskDelay(500 / portTICK_PERIOD_MS);
+
+//2. Set outputs push pull in AW9523 Global Control Register	
+	I2C_buf[0] = 0x11;	// write data to Global Control Register
+	I2C_buf[1] = 0x10;	// write data to Global Control Register, set Bit4 to Push Pull
+	res1 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP1, I2C_buf, 2, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
+	res2 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP2, I2C_buf, 2, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
+	printf("\nMaster wrote %d %d %02X\n", res1,res2,I2C_buf[0]);		
+
+	I2C_buf[0] = 0x02;	// write data to output port 1
+	I2C_buf[1] = 0xFF;	// write data to output port 1
+	I2C_buf[2] = 0xFF;	// write data to output port 1
+	I2C_buf[3] = 0x00;	// write data to output port 1
+	I2C_buf[4] = 0x00;	// write data to output port 1
+	res1 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP1, I2C_buf, 5, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
+	res2 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP2, I2C_buf, 5, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
+	printf("\nMaster wrote %d %d %02X\n", res1,res2,I2C_buf[0]);
+	printf("After AW9523 all GPIOs HIGH\n");
+	vTaskDelay(500 / portTICK_PERIOD_MS);
+
+
+	
+//2. Set AW9523-PhyPower to high	
+/*	I2C_buf[0] = 0x02;	// write to register 0x02
+	I2C_buf[1] = 255;	// set all pins high
+	I2C_buf[2] = 255;	// set all pins high
+	res1 = i2c_master_write_to_device(I2C_MASTER_NUM, I2C_PORTEXP2, I2C_buf, 3, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);	
+*/	
+	return res1;
+}
+
+#endif
-- 
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