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authorNicolas Schodet2013-05-03 00:09:07 +0200
committerNicolas Schodet2013-05-03 22:46:11 +0200
commit1c4f7b6044bb8880886ba4d8bd578d689430377e (patch)
tree4bba104060bd74a1deee8448425635f4009881db /digital/lcd/src/lcd.hh
parentd8303d619d33d32b613b88b562930756aa14e612 (diff)
digital/lcd/src: add first LCD program
Diffstat (limited to 'digital/lcd/src/lcd.hh')
-rw-r--r--digital/lcd/src/lcd.hh61
1 files changed, 61 insertions, 0 deletions
diff --git a/digital/lcd/src/lcd.hh b/digital/lcd/src/lcd.hh
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+++ b/digital/lcd/src/lcd.hh
@@ -0,0 +1,61 @@
+#ifndef lcd_hh
+#define lcd_hh
+// {{{
+//
+// Copyright (C) 2013 Nicolas Schodet
+//
+// APBTeam:
+// Web: http://apbteam.org/
+// Email: team AT apbteam DOT org
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "ucoolib/common.hh"
+#include "ucoolib/hal/gpio/gpio.hh"
+
+/// Control LCD.
+class LCD
+{
+ public:
+ static const int x_max = 320, y_max = 240;
+ public:
+ /// Constructor.
+ LCD ();
+ /// Turn display on.
+ void on ();
+ /// Turn display off.
+ void off ();
+ /// Clear the whole screen with the same color (default to black).
+ void clear (uint16_t color = 0);
+ /// Fill screen with colors.
+ void rainbow ();
+ /// Convert from RGB to hardware color format.
+ static inline uint16_t color (uint8_t r, uint8_t g, uint8_t b)
+ {
+ return (r >> 3 << 11) | (g >> 2 << 5) | (b >> 3);
+ }
+ private:
+ void set_cursor (int x, int y);
+ void write_index (uint16_t index);
+ void write_data (uint16_t data);
+ uint16_t read_data ();
+ void write_reg (uint16_t index, uint16_t data);
+ uint16_t read_reg (uint16_t index);
+ private:
+ ucoo::Gpio cs_, rs_, wr_, rd_, reset_, bl_;
+};
+
+#endif // lcd_hh