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authorNick Brassel <nick@tzarc.org>2021-08-29 08:20:25 +1000
committerNick Brassel <nick@tzarc.org>2021-08-29 08:20:25 +1000
commitf061ca497464fe85284906fb163a33eaee7a91ef (patch)
tree33ef1bfb529aed382e8526c607c4e18717f92571 /keyboards/ktec/ergodone/expander.h
parentff65185dec6f97be1eb49f17cea526a0d0bbf3d6 (diff)
parent4bad375d7c09d949a9dcdd4feba147c9c7a67ec6 (diff)
Breaking changes develop merge to master, 2021Q3 edition. (#14196)
Diffstat (limited to 'keyboards/ktec/ergodone/expander.h')
-rw-r--r--keyboards/ktec/ergodone/expander.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/keyboards/ktec/ergodone/expander.h b/keyboards/ktec/ergodone/expander.h
new file mode 100644
index 0000000000..8676fed693
--- /dev/null
+++ b/keyboards/ktec/ergodone/expander.h
@@ -0,0 +1,48 @@
+#ifndef EXPANDER_H
+#define EXPANDER_H
+
+#include <stdint.h>
+#include "matrix.h"
+
+#define MCP23017
+#define MCP23017_A0 0
+#define MCP23017_A1 0
+#define MCP23017_A2 0
+
+#ifdef MCP23017
+#define EXPANDER_ADDR ((0x20|(MCP23017_A0<<0)|(MCP23017_A1<<1)|(MCP23017_A2<<2)) << 1)
+enum EXPANDER_REG_BANK0 {
+ EXPANDER_REG_IODIRA = 0,
+ EXPANDER_REG_IODIRB,
+ EXPANDER_REG_IPOLA,
+ EXPANDER_REG_IPOLB,
+ EXPANDER_REG_GPINTENA,
+ EXPANDER_REG_GPINTENB,
+ EXPANDER_REG_DEFVALA,
+ EXPANDER_REG_DEFVALB,
+ EXPANDER_REG_INTCONA,
+ EXPANDER_REG_INTCONB,
+ EXPANDER_REG_IOCONA,
+ EXPANDER_REG_IOCONB,
+ EXPANDER_REG_GPPUA,
+ EXPANDER_REG_GPPUB,
+ EXPANDER_REG_INTFA,
+ EXPANDER_REG_INTFB,
+ EXPANDER_REG_INTCAPA,
+ EXPANDER_REG_INTCAPB,
+ EXPANDER_REG_GPIOA,
+ EXPANDER_REG_GPIOB,
+ EXPANDER_REG_OLATA,
+ EXPANDER_REG_OLATB
+};
+#endif
+
+void expander_init(void);
+void expander_scan(void);
+void expander_read_cols(void);
+uint8_t expander_get_col(uint8_t col);
+matrix_row_t expander_read_row(void);
+void expander_unselect_rows(void);
+void expander_select_row(uint8_t row);
+
+#endif