com works

5 files changed, 193 insertions, 33 deletions

diff --git a/.gitignore b/.gitignore
index 7f06b7f..46d5586 100644
--- a/.gitignore
+++ b/.gitignore
@@ -186,6 +186,7 @@ $RECYCLE.BIN/
 
 # End of https://www.gitignore.io/api/c++,linux,emacs,windows
 
+.cache/
 sketch.yaml
 hc
 .ccls*
diff --git a/Makefile b/Makefile
index 9a77d03..8746616 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@
 #
 # GNU Makefile
 
-default: debug
+default: run
 
 SHELL		:= /bin/sh
 OS			 = $(shell /usr/bin/uname)
@@ -35,8 +35,11 @@ ESP_NAME	 = halfcab.ino
 
 SRC_NAME	 = c_halfcab
 
+INC_NAME	 = c_defines
+
 SRCS		 = $(addprefix ${SRC_DIR}, $(addsuffix .c, ${SRC_NAME}))
 INCS		 = $(addprefix ${SRC_DIR}, $(addsuffix .h, ${SRC_NAME}))
+INCS		+= $(addprefix ${SRC_DIR}, $(addsuffix .h, ${INC_NAME}))
 OBJS		 = $(patsubst ${SRC_DIR}%.c, ${OBJ_DIR}%.c.o, ${SRCS})
 
 ARDUINO		 = arduino-cli
@@ -49,9 +52,9 @@ CFLAGS		+= -pedantic
 CFLAGS		+= -march=haswell
 CFLAGS		+= -O2
 CFLAGS		+= -pipe
-# ifeq (${OS}, Linux)
-# CFLAGS		+= -D_GNU_SOURCE
-# endif
+ifeq (${OS}, Linux)
+CFLAGS		+= -D_GNU_SOURCE
+endif
 
 ifeq (${OS}, Linux)
 CINCS		 = -isystem /usr/include
@@ -72,18 +75,18 @@ ${TRG_DIR}${TARGET}:	${OBJ_DIR} ${OBJS}
 
 debug: CFLAGS += -O0
 debug: CFLAGS += -g3
-debug: all
+debug: ${TRG_DIR}${TARGET}
 
 asan: CFLAGS += -O0
 asan: CFLAGS += -g3
 asan: CFLAGS += -fsanitize=address
-asan: all
+asan: ${TRG_DIR}${TARGET}
 
 clean:
 	${RM} ${OBJS} vgcore.* ${TARGET}.core ${TARGET} ${OBJ_DIR}
 
 esp:
-	${ARDUINO} compile -v -j8 --warnings all --fqbn ${ESP_FQBN} ${SRC_DIR}${ESP_DIR}
+	${ARDUINO} compile -v -j8 --warnings all --fqbn ${ESP_FQBN} --build-property build.extra_flags=-I${SRC_DIR} ${SRC_DIR}${ESP_DIR}
 	${ARDUINO} upload -p ${ESP_DEV} --fqbn ${ESP_FQBN} ${SRC_DIR}${ESP_DIR}
 
 attach:
@@ -97,4 +100,4 @@ all: esp ${TRG_DIR}${TARGET}
 run: debug
 	${TRG_DIR}${TARGET}
 
-.PHONY: esp attach mon hc
+.PHONY: esp attach mon hc clean asan debug all run
diff --git a/src/c_defines.h b/src/c_defines.h
new file mode 100644
index 0000000..608a057
--- /dev/null
+++ b/src/c_defines.h
@@ -0,0 +1,74 @@
+/*
+ * =====================
+ * ====  ===============
+ * =====================
+ * ===   ===   ====   ==
+ * ====  ==     ==  =  =
+ * ====  ==  =  ==     =
+ * ====  ==  =  ==  ====
+ * ====  ==  =  ==  =  =
+ * =  =  ===   ====   ==
+ * ==   ================
+ * =====================
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2025, joe
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the organization nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * halfcab: src/c_defines.h
+ * Sat, 20 Sep 2025 17:24:52 +0200
+ * joe <rbo@gmx.us>
+ */
+
+#ifndef __C_DEFINES_H__
+#define __C_DEFINES_H__
+
+#define PORT_NAME "/dev/ttyUSB0"
+#define PROGNAME "hc"
+
+#define DATA_PIN    D2
+#define NUM_LEDS    60
+#define BRIGHTNESS  254
+#define LED_TYPE    WS2812B
+#define COLOR_ORDER GRB
+
+#define BLACK CRGB(0, 0, 0)
+#define RED   CRGB(255, 0, 0)
+#define GREEN CRGB(0, 255, 0)
+#define BLUE  CRGB(0, 0, 255)
+#define GRUV  CRGB(255, 80, 0)
+
+enum colors_e {
+    R,
+    G,
+    B
+};
+
+#endif /* __C_DEFINES_H__ */
diff --git a/src/c_halfcab.c b/src/c_halfcab.c
index 68943f0..cab333c 100644
--- a/src/c_halfcab.c
+++ b/src/c_halfcab.c
@@ -49,14 +49,107 @@
  * the main
  */
 
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include "c_defines.h"
+
+static char
+param_esp_com
+(int fd,
+ const char prog_name[])
+{
+	struct termios tty;
+
+	if (tcgetattr(fd, &tty) != 0) {
+		dprintf(
+			STDERR_FILENO,
+			"%s: %s: %s\n",
+			prog_name,
+			"tcgetattr error with esp",
+			strerror(errno)
+		);
+		return (1);
+	}
+	cfsetospeed(&tty, B115200);
+	cfsetispeed(&tty, B115200);
+	tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8; /* 8-bit chars */
+	tty.c_iflag &= ~IGNBRK;         /* disable break processing */
+	tty.c_lflag = 0;                /* no signaling chars, no echo, */
+	tty.c_oflag = 0;                /* no remapping, no delays */
+	tty.c_cc[VMIN] = 1;             /* read doesn't block */
+	tty.c_cc[VTIME] = 5;            /* 0.5 seconds read timeout */
+	tty.c_iflag &= ~(IXON | IXOFF | IXANY); /* shut off xon/xoff ctrl */
+	tty.c_cflag |= (CLOCAL | CREAD);/* ignore modem controls, enable reading */
+	tty.c_cflag &= ~(PARENB | PARODD);      /* no parity */
+	tty.c_cflag &= ~CSTOPB;         /* 1 stop bit */
+	tty.c_cflag &= ~CRTSCTS;        /* no hardware flow control */
+	if(tcsetattr(fd, TCSANOW, &tty) != 0) {
+		dprintf(
+			STDERR_FILENO,
+			"%s: %s: %s\n",
+			prog_name,
+			"tcgetattr error with esp",
+			strerror(errno)
+		);
+		return (1);
+	}
+	return (0);
+}
+
+static int
+open_esp(const char prog_name[])
+{
+	int fd;
+
+	fd = open(PORT_NAME, O_WRONLY | O_NOCTTY | O_SYNC);
+	if (fd < 0) {
+		dprintf(
+			STDERR_FILENO,
+			"%s: %s: %s\n",
+			prog_name,
+			"error opening esp",
+			strerror(errno)
+		);
+		return (-1);
+	}
+	return (fd);
+}
 
 int
 main
 (int		 argc,
  const char* argv[])
 {
-	(void)argc;
-	(void)argv;
+	const char* prog_name = argv[0];
+	int fd;
+	const unsigned char com = 0xff;
+/* 	const unsigned char data[2] = { 0xfe, 0x00 }; */
+	/* unsigned char rgb[3];
+	unsigned char i; */
+
+	fd = open_esp(prog_name);
+	if (fd < 0) {
+		return (EXIT_FAILURE);
+	}
+	if (param_esp_com(fd, prog_name) != 0) {
+		close(fd);
+		return (EXIT_FAILURE);
+	}
+	if (argc < 4) {
+		write(fd, &com, 1 * sizeof(unsigned char));
+	} else {
+		/* i = 1;
+		while (i < 4) {
+			rgb[i] = atoi(argv[i]);
+			i++;
+		} */
+	}
+	close(fd);
 	return (EXIT_SUCCESS);
 }
diff --git a/src/esp/halfcab/halfcab.ino b/src/esp/halfcab/halfcab.ino
index 9dac98c..c8935f5 100644
--- a/src/esp/halfcab/halfcab.ino
+++ b/src/esp/halfcab/halfcab.ino
@@ -51,23 +51,7 @@
 
 #include <FastLED.h>
 
-#define DATA_PIN    D2
-#define NUM_LEDS    60
-#define BRIGHTNESS  254
-#define LED_TYPE    WS2812B
-#define COLOR_ORDER GRB
-
-enum colors_e {
-    R,
-    G,
-    B
-};
-
-#define BLACK CRGB(0, 0, 0)
-#define RED   CRGB(255, 0, 0)
-#define GREEN CRGB(0, 255, 0)
-#define BLUE  CRGB(0, 0, 255)
-#define GRUV  CRGB(255, 80, 0)
+#include "c_defines.h"
 
 CRGB leds[NUM_LEDS];
 
@@ -87,12 +71,16 @@ fill(CRGB color)
 void
 blink(void)
 {
-    fill(BLUE);
-    delay(100);
+    fill(RED);
+    delay(60);
+    fill(BLACK);
+    delay(60);
+    fill(RED);
+    delay(60);
     fill(BLACK);
-    delay(100);
-    fill(BLUE);
-    delay(100);
+    delay(60);
+    fill(RED);
+    delay(60);
     fill(BLACK);
     delay(1000);
 }
@@ -100,6 +88,7 @@ blink(void)
 void
 plain(void)
 {
+    fill(GRUV);
 }
 
 void
@@ -110,6 +99,7 @@ setup(void)
     FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS);
     FastLED.setBrightness(BRIGHTNESS);
     fill(BLACK);
+    blink();
 }
 
 void
@@ -118,7 +108,6 @@ loop(void)
     uint8_t i;
     uint8_t com;
 
-    blink();
     com = 0;
     while (Serial.available() <= 0) {
         /* empty */