1 files changed, 29 insertions, 31 deletions

diff --git a/tmk_core/protocol/ps2_busywait.c b/tmk_core/protocol/ps2_busywait.c
index a64933219..983194eea 100644
--- a/tmk_core/protocol/ps2_busywait.c
+++ b/tmk_core/protocol/ps2_busywait.c
@@ -45,20 +45,17 @@ POSSIBILITY OF SUCH DAMAGE.
 #include "ps2_io.h"
 #include "debug.h"
 
-
-#define WAIT(stat, us, err) do { \
-    if (!wait_##stat(us)) { \
-        ps2_error = err; \
-        goto ERROR; \
-    } \
-} while (0)
-
+#define WAIT(stat, us, err)     \
+    do {                        \
+        if (!wait_##stat(us)) { \
+            ps2_error = err;    \
+            goto ERROR;         \
+        }                       \
+    } while (0)
 
 uint8_t ps2_error = PS2_ERR_NONE;
 
-
-void ps2_host_init(void)
-{
+void ps2_host_init(void) {
     clock_init();
     data_init();
 
@@ -68,24 +65,23 @@ void ps2_host_init(void)
     inhibit();
 }
 
-uint8_t ps2_host_send(uint8_t data)
-{
+uint8_t ps2_host_send(uint8_t data) {
     bool parity = true;
-    ps2_error = PS2_ERR_NONE;
+    ps2_error   = PS2_ERR_NONE;
 
     /* terminate a transmission if we have */
     inhibit();
-    wait_us(100); // 100us [4]p.13, [5]p.50
+    wait_us(100);  // 100us [4]p.13, [5]p.50
 
     /* 'Request to Send' and Start bit */
     data_lo();
     clock_hi();
-    WAIT(clock_lo, 10000, 10);   // 10ms [5]p.50
+    WAIT(clock_lo, 10000, 10);  // 10ms [5]p.50
 
     /* Data bit */
     for (uint8_t i = 0; i < 8; i++) {
         wait_us(15);
-        if (data&(1<<i)) {
+        if (data & (1 << i)) {
             parity = !parity;
             data_hi();
         } else {
@@ -97,7 +93,11 @@ uint8_t ps2_host_send(uint8_t data)
 
     /* Parity bit */
     wait_us(15);
-    if (parity) { data_hi(); } else { data_lo(); }
+    if (parity) {
+        data_hi();
+    } else {
+        data_lo();
+    }
     WAIT(clock_hi, 50, 4);
     WAIT(clock_lo, 50, 5);
 
@@ -121,30 +121,29 @@ ERROR:
 }
 
 /* receive data when host want else inhibit communication */
-uint8_t ps2_host_recv_response(void)
-{
+uint8_t ps2_host_recv_response(void) {
     // Command may take 25ms/20ms at most([5]p.46, [3]p.21)
     // 250 * 100us(wait for start bit in ps2_host_recv)
     uint8_t data = 0;
-    uint8_t try = 250;
+    uint8_t try
+        = 250;
     do {
         data = ps2_host_recv();
-    } while (try-- && ps2_error);
+    } while (try --&&ps2_error);
     return data;
 }
 
 /* called after start bit comes */
-uint8_t ps2_host_recv(void)
-{
-    uint8_t data = 0;
-    bool parity = true;
-    ps2_error = PS2_ERR_NONE;
+uint8_t ps2_host_recv(void) {
+    uint8_t data   = 0;
+    bool    parity = true;
+    ps2_error      = PS2_ERR_NONE;
 
     /* release lines(idle state) */
     idle();
 
     /* start bit [1] */
-    WAIT(clock_lo, 100, 1); // TODO: this is enough?
+    WAIT(clock_lo, 100, 1);  // TODO: this is enough?
     WAIT(data_lo, 1, 2);
     WAIT(clock_hi, 50, 3);
 
@@ -153,7 +152,7 @@ uint8_t ps2_host_recv(void)
         WAIT(clock_lo, 50, 4);
         if (data_in()) {
             parity = !parity;
-            data |= (1<<i);
+            data |= (1 << i);
         }
         WAIT(clock_hi, 50, 5);
     }
@@ -182,8 +181,7 @@ ERROR:
 }
 
 /* send LED state to keyboard */
-void ps2_host_set_led(uint8_t led)
-{
+void ps2_host_set_led(uint8_t led) {
     ps2_host_send(0xED);
     ps2_host_send(led);
 }