From f542c0589bec06501a3990070c08638a9124f055 Mon Sep 17 00:00:00 2001
From: Mike Roberts <miker@miker.org>
Date: Sat, 11 May 2019 21:12:06 -0400
Subject: NEK Type A (#5175)

* project creation and config.h import

* fix name

* cleanup

* layout for left

* working left with feather pins

* full keymap

* ?

* let's do this

* non working twimaster version

* it fucking works!

* bluetooth!

* cleanup

* use auto output for ADAFRUIT_BLE

* remove auto from custom matrix

* better ble auto

* fix f1

* revert

* fix ble

* update readme

* Update readme.md

* Update readme.md
---
 keyboards/nek_type_a/mcp23017.h | 71 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 keyboards/nek_type_a/mcp23017.h

(limited to 'keyboards/nek_type_a/mcp23017.h')

diff --git a/keyboards/nek_type_a/mcp23017.h b/keyboards/nek_type_a/mcp23017.h
new file mode 100644
index 0000000000..41c747beab
--- /dev/null
+++ b/keyboards/nek_type_a/mcp23017.h
@@ -0,0 +1,71 @@
+/* Copyright 2018 Mike Roberts
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef MAP23017_H
+#define MAP23017_H
+
+#define EXPANDER_ADDR 0x27
+#define I2C_TIMEOUT 200 // milliseconds
+#define EXPANDER_PAUSE 0 // microseconds
+
+enum EXPANDER_REGISTERS {
+    EXPANDER_REG_IODIRA = 0x00,
+    EXPANDER_REG_IODIRB = 0x01,
+    EXPANDER_REG_IPOLA = 0x02,
+    EXPANDER_REG_IPOLB = 0x03,
+    EXPANDER_REG_GPINTENA = 0x04,
+    EXPANDER_REG_GPINTENB = 0x05,
+    EXPANDER_REG_DEFVALA = 0x06,
+    EXPANDER_REG_DEFVALB = 0x07,
+    EXPANDER_REG_INTCONA = 0x08,
+    EXPANDER_REG_INTCONB = 0x09,
+    EXPANDER_REG_IOCONA = 0x0A,
+    EXPANDER_REG_IOCONB = 0x0B,
+    EXPANDER_REG_GPPUA = 0x0C,
+    EXPANDER_REG_GPPUB = 0x0D,
+    EXPANDER_REG_INTFA = 0x0E,
+    EXPANDER_REG_INTFB = 0x0F,
+    EXPANDER_REG_INTCAPA = 0x10,
+    EXPANDER_REG_INTCAPB = 0x11,
+    EXPANDER_REG_GPIOA = 0x12,
+    EXPANDER_REG_GPIOB = 0x13,
+    EXPANDER_REG_OLATA = 0x14,
+    EXPANDER_REG_OLATB = 0x15
+};
+
+#define GPA0 0x0
+#define GPA1 0x1
+#define GPA2 0x2
+#define GPA3 0x3
+#define GPA4 0x4
+#define GPA5 0x5
+#define GPA6 0x6
+#define GPA7 0x7
+#define GPB0 0x8
+#define GPB1 0x9
+#define GPB2 0xA
+#define GPB3 0xB
+#define GPB4 0xC
+#define GPB5 0xD
+#define GPB6 0xE
+#define GPB7 0xF
+
+
+void expander_init(void);
+void expander_select(uint8_t pin);
+void expander_unselect(uint8_t pin);
+void expander_unselect_all(void);
+
+#endif
\ No newline at end of file
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