diff options
Diffstat (limited to 'halext/include/gdisp_lld.h')
| -rw-r--r-- | halext/include/gdisp_lld.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/halext/include/gdisp_lld.h b/halext/include/gdisp_lld.h index bef4f96a..970fd712 100644 --- a/halext/include/gdisp_lld.h +++ b/halext/include/gdisp_lld.h @@ -37,6 +37,30 @@ #include "gdisp_lld_config.h"
/*===========================================================================*/
+/* Constants. */
+/*===========================================================================*/
+
+/**
+ * @brief Driver Control Constants
+ * @detail Unsupported control codes are ignored.
+ * @note The value parameter should always be typecast to (void *).
+ * @note There are some predefined and some specific to the low level driver.
+ * @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
+ * GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
+ * GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
+ * that only supports off/on anything other
+ * than zero is on.
+ * GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
+ * GDISP_CONTROL_LLD - Low level driver control constants start at
+ * this value.
+ */
+#define GDISP_CONTROL_POWER 0
+#define GDISP_CONTROL_ORIENTATION 1
+#define GDISP_CONTROL_BACKLIGHT 2
+#define GDISP_CONTROL_CONTRAST 3
+#define GDISP_CONTROL_LLD 1000
+
+/*===========================================================================*/
/* Error checks. */
/*===========================================================================*/
|