From 8010302d4d602306be4fa991100f22f47dd94f46 Mon Sep 17 00:00:00 2001
From: Silvano Seva <silseva@fastwebnet.it>
Date: Mon, 4 Jan 2021 20:53:42 +0100
Subject: [PATCH] Tone generator and GPIO for audio control on MD-UV380
 platform

---
 meson.build                          | 17 +++++-----
 platform/targets/MD-UV380/hwconfig.h |  8 +++++
 tests/platform/tonegen.c             | 47 ++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+), 8 deletions(-)
 create mode 100644 tests/platform/tonegen.c

diff --git a/meson.build b/meson.build
index 6c8b1432..a0288055 100644
--- a/meson.build
+++ b/meson.build
@@ -221,6 +221,7 @@ mduv380_src = src + stm32f405_src + ['platform/drivers/display/HX83XX_MDx.c',
                                      'platform/drivers/NVM/spiFlash_MDx.c',
                                      'platform/drivers/NVM/nvmem_MDUV3x0.c',
                                      'platform/drivers/ADC/ADC1_MDx.c',
+                                     'platform/drivers/tones/toneGenerator_MDx.c',
                                      'platform/drivers/baseband/rtx_UV3x0.c',
                                      'platform/targets/MD-UV380/platform.c']
 
@@ -228,6 +229,14 @@ mduv380_inc = inc + stm32f405_inc + ['platform/targets/MD-UV380']
 mduv380_def = def + stm32f405_def + {'PLATFORM_MDUV380': ''}
 
 
+## TYT MD-9600
+md9600_src = src + stm32f405_src + ['platform/targets/MD-9600/platform.c',
+                                    'platform/drivers/tones/toneGenerator_MDx.c']
+
+md9600_inc = inc + stm32f405_inc + ['platform/targets/MD-9600']
+md9600_def = def + stm32f405_def + {'PLATFORM_MD9600': ''}
+
+
 ## Radioddity GD77
 gd77_src = src + mk22fn512_src + ['platform/targets/GD77/platform.c',
                                   'platform/drivers/display/UC1701_GD77.c',
@@ -257,14 +266,6 @@ dm1801_src = src + mk22fn512_src + ['platform/targets/DM-1801/platform.c',
 dm1801_inc = inc + mk22fn512_inc + ['platform/targets/DM-1801']
 dm1801_def = def + mk22fn512_def + {'PLATFORM_DM1801': ''}
 
-
-## TYT MD-9600
-md9600_src = src + stm32f405_src + ['platform/targets/MD-9600/platform.c']
-
-md9600_inc = inc + stm32f405_inc + ['platform/targets/MD-9600']
-md9600_def = def + stm32f405_def + {'PLATFORM_MD9600': ''}
-
-
 ##
 ## Compilation defines
 ##
diff --git a/platform/targets/MD-UV380/hwconfig.h b/platform/targets/MD-UV380/hwconfig.h
index e2230c42..758d05d8 100644
--- a/platform/targets/MD-UV380/hwconfig.h
+++ b/platform/targets/MD-UV380/hwconfig.h
@@ -89,12 +89,20 @@
 #define MONI_SW LCD_D6
 #define FUNC_SW LCD_D7
 
+/* Tone generator  */
+#define CTCSS_OUT GPIOC,7   /* System "beep" */
+#define BEEP_OUT  GPIOC,8   /* CTCSS tone    */
+
 /* External flash */
 #define FLASH_CS  GPIOD,7
 #define FLASH_CLK GPIOB,3
 #define FLASH_SDO GPIOB,4
 #define FLASH_SDI GPIOB,5
 
+/* Audio control */
+#define AMP_EN   GPIOB,9
+#define SPK_MUTE GPIOB,8
+
 /*
  * To enable pwm for display backlight dimming uncomment this directive.
  *
diff --git a/tests/platform/tonegen.c b/tests/platform/tonegen.c
new file mode 100644
index 00000000..b134d983
--- /dev/null
+++ b/tests/platform/tonegen.c
@@ -0,0 +1,47 @@
+/***************************************************************************
+ *   Copyright (C) 2020 by Federico Izzo IU2NUO, Niccolò Izzo IU2KIN and   *
+ *                         Silvano Seva IU2KWO                             *
+ *                                                                         *
+ *   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 3 of the License, 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; if not, see <http://www.gnu.org/licenses/>   *
+ ***************************************************************************/
+
+#include <stdint.h>
+#include <stdio.h>
+#include "stm32f4xx.h"
+#include "gpio.h"
+#include "delays.h"
+#include "toneGenerator_MDx.h"
+#include "hwconfig.h"
+
+int main()
+{
+    gpio_setMode(SPK_MUTE, OUTPUT);     // Turn on speaker
+    gpio_clearPin(SPK_MUTE);
+
+    gpio_setMode(AMP_EN, OUTPUT);     // Turn on audio amplifier
+    gpio_setPin(AMP_EN);
+
+    toneGen_init();
+    toneGen_setBeepFreq(440.0f);
+
+    while(1)
+    {
+        toneGen_beepOn();
+        delayMs(500);
+        toneGen_beepOff();
+        delayMs(500);
+    }
+
+    return 0;
+}