From 24b4fc1413a44dac26a1058e39e099da07c8f5ec Mon Sep 17 00:00:00 2001
From: demik <demik475@gmail.com>
Date: Fri, 8 Jan 2021 09:21:38 +0100
Subject: [PATCH] try to init adb

---
 main/CMakeLists.txt |  3 ++-
 main/adb.c          | 63 +++++++++++++++++++++++++++++++++++++++++++++
 main/gpio.c         |  9 +++++++
 main/main.c         |  9 ++++++-
 4 files changed, 82 insertions(+), 2 deletions(-)
 create mode 100644 main/adb.c

diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index 179b749..047615a 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -1,4 +1,5 @@
-set(srcs "blue.c"
+set(srcs "adb.c" 
+         "blue.c"
          "esp_hid_gap.c"
 	 "gpio.c"
 	 "led.c"
diff --git a/main/adb.c b/main/adb.c
new file mode 100644
index 0000000..50c9e23
--- /dev/null
+++ b/main/adb.c
@@ -0,0 +1,63 @@
+/*
+ *  adb.c
+ *  quack
+ *
+ *  Created by Michel DEPEIGE on 7/01/2020.
+ *  Copyright (c) 2020 Michel DEPEIGE.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ */
+
+#include <stdio.h>
+#include "driver/gpio.h"
+#include "sdkconfig.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_system.h"
+#include "esp_spi_flash.h"
+
+#include "adb.h"
+#include "gpio.h"
+
+void	adb_init(void) {
+	gpio_set_pull_mode(GPIO_ADB, GPIO_PULLUP_ONLY);
+
+	/* If jumper is set, switch to ADB host mode */
+	if (gpio_get_level(GPIO_ADBSRC) == 0)
+		xTaskCreatePinnedToCore(&adb_task_host, "ADB_HOST", 6 * 1024, NULL, 4, NULL, 1);
+	else
+		xTaskCreatePinnedToCore(&adb_task_mouse, "ADB_MOUSE", 6 * 1024, NULL, 4, NULL, 1);
+}
+
+void	adb_task_host(void *pvParameters) {
+	adb_send_reset();
+
+	while (1) {
+		vTaskDelay(1000 / portTICK_PERIOD_MS);
+	}
+}
+
+void	adb_task_mouse(void *pvParameters) {
+
+}
+
+void	adb_send_reset() {
+	gpio_set_level(GPIO_ADB, 0);
+	vTaskDelay(3 / portTICK_PERIOD_MS);
+	gpio_set_level(GPIO_ADB, 1);
+	vTaskDelay(1 / portTICK_PERIOD_MS);
+}
diff --git a/main/gpio.c b/main/gpio.c
index 807eeed..6a303f9 100644
--- a/main/gpio.c
+++ b/main/gpio.c
@@ -53,18 +53,27 @@ void	gpio_init(void) {
 	gpio_set_direction(GPIO_ADBSRC, GPIO_MODE_INPUT);
 	gpio_set_direction(GPIO_BTOFF, GPIO_MODE_INPUT);
 
+	/* ADB */
+	gpio_set_direction(GPIO_ADB, GPIO_MODE_INPUT|GPIO_MODE_OUTPUT);
+
 	/* Quadrature mouse */
 	gpio_reset_pin(GPIO_CLICK);
 	gpio_reset_pin(GPIO_QX1);
 	gpio_reset_pin(GPIO_QX2);
 	gpio_reset_pin(GPIO_QY1);
 	gpio_reset_pin(GPIO_QY2);
+	gpio_set_pull_mode(GPIO_CLICK, GPIO_PULLDOWN_ONLY);
+	gpio_set_pull_mode(GPIO_QX1, GPIO_PULLDOWN_ONLY);
+	gpio_set_pull_mode(GPIO_QX2, GPIO_PULLDOWN_ONLY);
+	gpio_set_pull_mode(GPIO_QY1, GPIO_PULLDOWN_ONLY);
+	gpio_set_pull_mode(GPIO_QY2, GPIO_PULLDOWN_ONLY);
 	gpio_set_direction(GPIO_CLICK, GPIO_MODE_OUTPUT);
 	gpio_set_direction(GPIO_QX1, GPIO_MODE_OUTPUT);
 	gpio_set_direction(GPIO_QX2, GPIO_MODE_OUTPUT);
 	gpio_set_direction(GPIO_QY1, GPIO_MODE_OUTPUT);
 	gpio_set_direction(GPIO_QY2, GPIO_MODE_OUTPUT);
 
+
 	gpio_set_level(GPIO_CLICK, 1);
 }
 
diff --git a/main/main.c b/main/main.c
index 0db2221..e756709 100644
--- a/main/main.c
+++ b/main/main.c
@@ -32,6 +32,7 @@
 #include "esp_system.h"
 #include "esp_spi_flash.h"
 
+#include "adb.h"
 #include "blue.h"
 #include "led.h"
 #include "gpio.h"
@@ -58,10 +59,16 @@ void app_main(void)
 
 	gpio_init();
 	led_init();
+	adb_init();
 
-	/* Check /BTOFF and enable bluetooth if needed */
+	/*
+	 * Check /BTOFF and enable bluetooth if needed
+	 * of bluetooth is disabled, enable ADB and Quadrature outputs
+	 */
 	if (gpio_get_level(GPIO_BTOFF) == 1)
 		blue_init();
+	else
+		gpio_output_enable();
 
 	/* Blink error if no inputs (/BTOFF and no /ADBSRC) */
 	if (gpio_get_level(GPIO_BTOFF) == 0 && gpio_get_level(GPIO_ADBSRC) == 1) {