1 files changed, 0 insertions, 120 deletions
diff --git a/keyboards/ergodox/ergodone/expander.c b/keyboards/ergodox/ergodone/expander.c
deleted file mode 100644
index 0c8a2289c5..0000000000
--- a/keyboards/ergodox/ergodone/expander.c
+++ /dev/null
@@ -1,120 +0,0 @@
-#include <stdbool.h>
-#include "action.h"
-#include "i2cmaster.h"
-#include "expander.h"
-#include "debug.h"
-
-static uint8_t expander_status = 0;
-static uint8_t expander_input = 0;
-
-void expander_config(void);
-uint8_t expander_write(uint8_t reg, uint8_t data);
-uint8_t expander_read(uint8_t reg, uint8_t *data);
-
-void expander_init(void)
-{
-  i2c_init();
-  expander_scan();
-}
-
-void expander_scan(void)
-{
-  dprintf("expander status: %d ... ", expander_status);
-  uint8_t ret = i2c_start(EXPANDER_ADDR | I2C_WRITE);
-  if (ret == 0) {
-    i2c_stop();
-    if (expander_status == 0) {
-      dprintf("attached\n");
-      expander_status = 1;
-      expander_config();
-      clear_keyboard();
-    }
-  }
-  else {
-    if (expander_status == 1) {
-      dprintf("detached\n");
-      expander_status = 0;
-      clear_keyboard();
-    }
-  }
-  dprintf("%d\n", expander_status);
-}
-
-void expander_read_cols(void)
-{
-  expander_read(EXPANDER_REG_GPIOA, &expander_input);
-}
-
-uint8_t expander_get_col(uint8_t col)
-{
-  if (col > 4) {
-    col++;
-  }
-  return expander_input & (1<<col) ? 1 : 0;
-}
-
-matrix_row_t expander_read_row(void)
-{
-  expander_read_cols();
-
-  /* make cols */
-  matrix_row_t cols = 0;
-  for (uint8_t col = 0; col < MATRIX_COLS; col++) {
-    if (expander_get_col(col)) {
-      cols |= (1UL << (MATRIX_COLS - 1 - col));
-    }
-  }
-
-  return cols;
-}
-
-void expander_unselect_rows(void)
-{
-  expander_write(EXPANDER_REG_IODIRB, 0xFF);
-}
-
-void expander_select_row(uint8_t row)
-{
-  expander_write(EXPANDER_REG_IODIRB, ~(1<<(row+1)));
-}
-
-void expander_config(void)
-{
-  expander_write(EXPANDER_REG_IPOLA, 0xFF);
-  expander_write(EXPANDER_REG_GPPUA, 0xFF);
-  expander_write(EXPANDER_REG_IODIRB, 0xFF);
-}
-
-uint8_t expander_write(uint8_t reg, uint8_t data)
-{
-  if (expander_status == 0) {
-    return 0;
-  }
-  uint8_t ret;
-  ret = i2c_start(EXPANDER_ADDR | I2C_WRITE);
-  if (ret) goto stop;
-  ret = i2c_write(reg);
-  if (ret) goto stop;
-  ret = i2c_write(data);
- stop:
-  i2c_stop();
-  return ret;
-}
-
-uint8_t expander_read(uint8_t reg, uint8_t *data)
-{
-  if (expander_status == 0) {
-    return 0;
-  }
-  uint8_t ret;
-  ret = i2c_start(EXPANDER_ADDR | I2C_WRITE);
-  if (ret) goto stop;
-  ret = i2c_write(reg);
-  if (ret) goto stop;
-  ret = i2c_rep_start(EXPANDER_ADDR | I2C_READ);
-  if (ret) goto stop;
-  *data = i2c_readNak();
- stop:
-  i2c_stop();
-  return ret;
-}