From 84077271e0e334a1328f771c925c32dc4d70d3de Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sun, 12 Sep 2021 19:39:16 +0200
Subject: add project: table-fan

---
 table-fan/Makefile    |  47 ++++++++++++++++++++++
 table-fan/table-fan.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 153 insertions(+)
 create mode 100644 table-fan/Makefile
 create mode 100644 table-fan/table-fan.c

diff --git a/table-fan/Makefile b/table-fan/Makefile
new file mode 100644
index 0000000..c41073f
--- /dev/null
+++ b/table-fan/Makefile
@@ -0,0 +1,47 @@
+##
+##  spreadspace avr utils
+##
+##
+##  Copyright (C) 2021 Christian Pointner <equinox@spreadspace.org>
+##
+##  This file is part of spreadspace avr utils.
+##
+##  spreadspace avr utils 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
+##  any later version.
+##
+##  spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+##
+
+NAME := table-fan
+BOARD_TYPE := sparkfunProMicro
+OBJ := $(NAME).o
+LIBS := util led lufa-descriptor-usbserial usbio
+EXTERNAL_LIBS := lufa
+SPREADAVR_PATH := ../contrib/avr-utils
+RESET_FUNC := $(SPREADAVR_PATH)/tools/reset_lufa_cdc
+RESET_PARAM := 'r'
+
+LUFA_PATH := $(SPREADAVR_PATH)/contrib/lufa-LUFA-151115
+LUFA_OPTS  = -D USB_DEVICE_ONLY
+LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
+LUFA_OPTS += -D ORDERED_EP_CONFIG
+LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
+LUFA_OPTS += -D USE_FLASH_DESCRIPTORS
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
+LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT
+
+LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\""
+LUFA_OPTS += -D USB_PRODUCT="L\"spreadspace table-fan control\""
+
+LUFA_COMPONENTS := USB USBCLASS
+
+include $(SPREADAVR_PATH)/include.mk
diff --git a/table-fan/table-fan.c b/table-fan/table-fan.c
new file mode 100644
index 0000000..bb5fa29
--- /dev/null
+++ b/table-fan/table-fan.c
@@ -0,0 +1,106 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013-2015 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of spreadspace avr utils.
+ *
+ *  spreadspace avr utils 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
+ *  any later version.
+ *
+ *  spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+#include <stdio.h>
+
+#include "util.h"
+#include "led.h"
+#include "usbio.h"
+
+/* #define PWM_VAL OCR1BL */
+
+/* void pwm_init(void) */
+/* { */
+/*   DDRB |= (1<<PB6); */
+/*   TCCR1B = 0; */
+/*   TCNT1 = 0; */
+/*   OCR1B = 0; */
+/*   TCCR1A = (1<<COM1B1) | (1<<WGM10); */
+/*   TCCR1B = (1<<WGM12) | (1<<CS10); */
+/* } */
+
+/* inline void pwm_set(uint8_t val) */
+/* { */
+/*   PWM_VAL = val; */
+/* } */
+
+/* inline void pwm_inc(void) */
+/* { */
+/*   if(PWM_VAL < 255) */
+/*     PWM_VAL++; */
+/* } */
+
+/* inline void pwm_dec(void) */
+/* { */
+/*   if(PWM_VAL > 0) */
+/*     PWM_VAL--; */
+/* } */
+
+void handle_cmd(uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': led_off(); printf("ok\r\n"); break;
+  case '1': led_on(); printf("ok\r\n"); break;
+  /* case '+': pwm_inc(); printf("pwm = %d\r\n", PWM_VAL);  break; */
+  /* case '-': pwm_dec(); printf("pwm = %d\r\n", PWM_VAL); break; */
+  case 'r': reset2bootloader(); break;
+  default: printf("error\r\n"); return;
+  }
+
+}
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  jtag_disable();
+
+  led_init();
+  usbio_init();
+      // pwm_init();
+  sei();
+
+      // FAN tacho input (enable Pull-Up)
+  DDRD &= ~(1<<PD4);
+  PORTD |= (1<<PD4);
+
+  led_on();
+  for(;;) {
+    int16_t BytesReceived = usbio_bytes_received();
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(stdin);
+      if(ReceivedByte != EOF) {
+        handle_cmd(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    usbio_task();
+  }
+}
-- 
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