summaryrefslogtreecommitdiff
path: root/include/media/ir-common.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/media/ir-common.h')
-rw-r--r--include/media/ir-common.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
new file mode 100644
index 000000000000..62c963a52d86
--- /dev/null
+++ b/include/media/ir-common.h
@@ -0,0 +1,67 @@
+/*
+ * $Id: ir-common.h,v 1.8 2005/02/22 12:28:40 kraxel Exp $
+ *
+ * some common structs and functions to handle infrared remotes via
+ * input layer ...
+ *
+ * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
+ *
+ * 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 <linux/version.h>
+#include <linux/input.h>
+
+
+#define IR_TYPE_RC5 1
+#define IR_TYPE_OTHER 99
+
+#define IR_KEYTAB_TYPE u32
+#define IR_KEYTAB_SIZE 128 // enougth for rc5, probably need more some day ...
+
+#define IR_KEYCODE(tab,code) (((unsigned)code < IR_KEYTAB_SIZE) \
+ ? tab[code] : KEY_RESERVED)
+
+struct ir_input_state {
+ /* configuration */
+ int ir_type;
+ IR_KEYTAB_TYPE ir_codes[IR_KEYTAB_SIZE];
+
+ /* key info */
+ u32 ir_raw; /* raw data */
+ u32 ir_key; /* ir key code */
+ u32 keycode; /* linux key code */
+ int keypressed; /* current state */
+};
+
+extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE];
+
+void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
+ int ir_type, IR_KEYTAB_TYPE *ir_codes);
+void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
+void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
+ u32 ir_key, u32 ir_raw);
+u32 ir_extract_bits(u32 data, u32 mask);
+int ir_dump_samples(u32 *samples, int count);
+int ir_decode_biphase(u32 *samples, int count, int low, int high);
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */