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authorJack Humbert <jack.humb@gmail.com>2016-07-06 23:44:22 -0400
committerGitHub <noreply@github.com>2016-07-06 23:44:22 -0400
commit21e443101f4873a813d33e50486d4e9591e89f4e (patch)
treed06043ac6fe7003ba2e9d7c3ea30378b6a51c3d5 /keyboards/lets_split/split_util.c
parent5baaf871bbdd6667625860b0daef7fe9a91e08db (diff)
parenta4bf46f9b1d0a0be0cecb2cd0f0d941aa7c71bd3 (diff)
Merge pull request #484 from jackhumbert/lets-split-support
Add Let's Split support
Diffstat (limited to 'keyboards/lets_split/split_util.c')
-rw-r--r--keyboards/lets_split/split_util.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/keyboards/lets_split/split_util.c b/keyboards/lets_split/split_util.c
new file mode 100644
index 0000000000..65003a71a4
--- /dev/null
+++ b/keyboards/lets_split/split_util.c
@@ -0,0 +1,76 @@
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include "split_util.h"
+#include "matrix.h"
+#include "i2c.h"
+#include "serial.h"
+#include "keyboard.h"
+#include "config.h"
+
+volatile bool isLeftHand = true;
+
+static void setup_handedness(void) {
+ #ifdef EE_HANDS
+ isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
+ #else
+ #ifdef I2C_MASTER_RIGHT
+ isLeftHand = !has_usb();
+ #else
+ isLeftHand = has_usb();
+ #endif
+ #endif
+}
+
+static void keyboard_master_setup(void) {
+#ifdef USE_I2C
+ i2c_master_init();
+#else
+ serial_master_init();
+#endif
+}
+
+static void keyboard_slave_setup(void) {
+#ifdef USE_I2C
+ i2c_slave_init(SLAVE_I2C_ADDRESS);
+#else
+ serial_slave_init();
+#endif
+}
+
+bool has_usb(void) {
+ USBCON |= (1 << OTGPADE); //enables VBUS pad
+ _delay_us(5);
+ return (USBSTA & (1<<VBUS)); //checks state of VBUS
+}
+
+void split_keyboard_setup(void) {
+ setup_handedness();
+
+ if (has_usb()) {
+ keyboard_master_setup();
+ } else {
+ keyboard_slave_setup();
+ }
+ sei();
+}
+
+void keyboard_slave_loop(void) {
+ matrix_init();
+
+ while (1) {
+ matrix_slave_scan();
+ }
+}
+
+// this code runs before the usb and keyboard is initialized
+void matrix_setup(void) {
+ split_keyboard_setup();
+
+ if (!has_usb()) {
+ keyboard_slave_loop();
+ }
+}