Screen: implementation of drawing and trivial docs.

Signed-off-by: Ramūnas Mažeikis <ramunasnezinomas@gmail.com>

1 files changed, 21 insertions, 2 deletions

diff --git a/src/device/screen.h b/src/device/screen.h
index 7763bd2..54734e5 100755..100644
--- a/src/device/screen.h
+++ b/src/device/screen.h
@@ -1,9 +1,17 @@
+/**
+ * Simple API for scrolling lines. Keeps things simple by not even assuming
+ * which screen is being drawn on.
+ */
+
 #ifndef DEVICE_SCREEN_H
 #define DEVICE_SCREEN_H
 
 #include <time.h>
+#include <SSD1306Brzo.h>
+#include <Wire.h>
 
-#define SCREEN_WIDTH		(64)
+#define SCREEN_WIDTH		(128)
+#define SCREEN_HEIGHT		(32)
 #define FONT_WIDTH		(8)
 #define SCREEN_MAX_CHARS	(SCREEN_WIDTH / FONT_WIDTH)
 
@@ -11,6 +19,7 @@
  * Struct that keeps track of the lines on the screen.
  */
 struct display_status {
+	SSD1306Brzo *screen;		/* Screen to draw on. */
 	time_t delta;			/* Seconds/Line */
 	time_t last_scroll_time;	/* Last second the line was scrolled */
 	char *message;			/* Entire message to be shown */
@@ -25,6 +34,16 @@ struct display_status {
  */
 void display_update_scroll(struct display_status *status);
 
-void display_status_init(struct display_status *status, char *msg);
+/**
+ * Initialises display_status structure so it can be used for
+ * display_update_scroll.
+ *
+ * screen	- screen to draw on
+ *
+ * status	- structure to Initialise
+ *
+ * msg		- message to scroll on the screen
+ */
+void display_status_init(SSD1306Brzo *screen, struct display_status *status, char *msg);
 
 #endif /* DEVICE_SCREEN_H */
\ No newline at end of file