logging.c: simple logging implementation

[heater.git] / firmware / logging.h

diff --git a/firmware/logging.h b/firmware/logging.h
new file mode 100644 (file)
index 0000000..962a830
--- /dev/null
+++ b/firmware/logging.h
@@ -0,0 +1,28 @@
+#ifndef LOGGING_H__
+#define LOGGING_H__ 1
+
+#define USE_LOGGING 1  // comment out to disable logging
+
+#define LOG_EE_BUF_SIZE 64     // log buffer size in EEPROM
+#define LOG_RAM_BUF_SIZE 16    // log double buffer size
+
+#define LOG_RATELIMIT_BOOTCOUNT 5 // limit logging to first five boots
+       // if commented out, logs after each boot (beware the EEPROM wear!)
+
+#ifdef USE_LOGGING
+
+void log_init();
+void log_byte(unsigned char byte);
+void log_word(uint16_t word);
+void log_flush();
+
+#else /* !USE_LOGGING */
+
+#define init_log(dummy)        do { } while(0)
+#define log_byte(dummy)        do { } while(0)
+#define log_word(dummy)        do { } while(0)
+#define log_flush()    do { } while(0)
+
+#endif /* USE_LOGGING */
+
+#endif /* !LOGGING_H__ */