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authorJérémy Dufour2008-03-11 17:30:56 +0100
committerJérémy Dufour2008-03-11 17:30:56 +0100
commit8dc2a7fa077b001b17d826bcfb687c51d461d914 (patch)
treefa6f862d9033e01b28b55dd1ffa1903063b30d1f /digital/io/src/switch.h
parent7b4144a45655bf26aa34bdc5236d42c7fdd8df33 (diff)
* digital/io/src
- add switch module to manage the jack and color selector.
Diffstat (limited to 'digital/io/src/switch.h')
-rw-r--r--digital/io/src/switch.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/digital/io/src/switch.h b/digital/io/src/switch.h
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+#ifndef switch_h
+#define switch_h
+/* switch.h */
+/* io - Input & Output with Artificial Intelligence (ai) support on AVR. {{{
+ *
+ * Copyright (C) 2008 Dufour Jrmy
+ *
+ * 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.
+ *
+ * }}} */
+
+/**
+ * @file Module to manage 'switchs'. For example, colors selector and jack.
+ */
+
+#include "io.h"
+
+/**
+ * @defgroup SwitchConfiguration Configuration of the switch module.
+ * You can change the value of the defines and variables of this group to
+ * configure the module.
+ */
+
+/**
+ * Color selector switch port.
+ */
+#define SWITCH_COLOR_PORT PORTC
+
+/**
+ * Color selector switch pin number of the port.
+ */
+#define SWITCH_COLOR_PIN 0
+
+/**
+ * Jack switch port.
+ */
+#define SWITCH_JACK_PORT PORTC
+
+/**
+ * Jack switch pin number of the port.
+ */
+#define SWITCH_JACK_PIN 1
+
+/** @} */
+
+/**
+ * Initialize the switch module.
+ * This functions just put the pins in input direction and enable pull-ups.
+ */
+inline void
+switch_init (void)
+{
+ /* By default, all pins are in input direction */
+ /* Enable the pull-ups */
+#define set_bit(port, bit) (port |= _BV(bit))
+ set_bit (SWITCH_COLOR_PORT, SWITCH_COLOR_PIN);
+ set_bit (SWITCH_JACK_PORT, SWITCH_JACK_PIN);
+}
+
+/**
+ * Get the current state of the select colors switch.
+ */
+inline uint8_t
+switch_get_color (void)
+{
+ return bit_is_set (SWITCH_COLOR_PORT, SWITCH_COLOR_PIN);
+}
+
+/**
+ * Get the current state of the jack switch.
+ */
+inline uint8_t
+switch_get_jack (void)
+{
+ return bit_is_set (SWITCH_JACK_PORT, SWITCH_JACK_PIN);
+}
+
+#endif /* switch_h */