pic_therm

commit 9a2b04f633fa892c9c16d88d551b160f42a7dbfc
parent cc855f90511faadef1a74bb1077d745703b0c404
Author: Christos Margiolis <christos@margiolis.net>
Date:   Sat, 26 Mar 2022 16:55:05 +0200

add hang macro

Diffstat:
M
src/main.c
 | 
17
+++++++++++------
M
src/tmr0.c
 | 
4
++--

2 files changed, 13 insertions(+), 8 deletions(-)
diff --git a/src/main.c b/src/main.c
@@ -31,6 +31,11 @@ static char	buf[BUFSIZ+1] = {0}; /* Generic buffer */
 	lcd_puts(itoa(&buf[sizeof(buf)-1], v));	\
 } while (0)
 
+#define HANG(str) do {				\
+	lcd_puts(str);				\
+	for (;;);				\
+} while (0)
+
 static void
 ctx_main(void)
 {
@@ -107,14 +112,14 @@ void
 main(void)
 {
 	tmr0_init();
-	tmr0_set_event(&led_blink, 1000);
-	tmr0_set_event(&button_debounce, 1);
+	if (tmr0_set_event(&led_blink, 1000) < 0)
+		HANG("led_blink event failed");
+	if (tmr0_set_event(&button_debounce, 1) < 0)
+		HANG("button_debounce event failed");
 	lcd_init();
 	i2c_init(I2C_MASTER, I2C_SLEW_OFF, I2C_CLK_1MHZ);
-	if (bme280_init() < 0) {
-		lcd_puts("BME280 error");
-		for (;;); /* Hang */
-	}
+	if (bme280_init() < 0)
+		HANG("BME280 error");
 
 	BTN_TRIS = INPUT;
 	LED_PORT = 1; /* LED on */
diff --git a/src/tmr0.c b/src/tmr0.c
@@ -70,7 +70,7 @@ tmr0_set_event(ev_handler handler, uint16_t rate)
 		r->handler = handler;
 		r->rate = rate;
 		r->cnt = 0;
-		return (1);
+		return (0);
 	}
-	return (0);
+	return (-1);
 }