Keyboard: Helix serial.c, split_scom.c bug fix and update (#4191)

* helix/serial.c add support PD1,PD3,PE6 and configuration simplify

* Add comment about ATmega32U4 I2C

* Add compile time check for ATmega32U4 I2C

* change TAB code to 8 SPACE code

* Helix serial.c PORTD,PD0 test. OK

  OK PD0
  -  PD1
  OK PD2
  -  PD3
  -  PE6

* Helix serial.c PORTD,PD1 test. OK

   OK PD0
   OK PD1
   OK PD2
   -  PD3
   -  PE6

* Helix serial.c PORTD,PD3 test. OK

   OK PD0
   OK PD1
   OK PD2
   OK PD3
   -  PE6

* Helix serial.c PORTE,PD6 test. OK

   OK PD0
   OK PD1
   OK PD2
   OK PD3
   OK PE6

* Helix serial.c: PD0,PD1,PD3,PE6 all test end

* Helix serial.c: rename SOFT_SERIAL_PORT to SOFT_SERIAL_PIN

* Helix serial.c add debug code

* Helix serial.c: add transaction ID range check

* Helix serial.c debug code update

* Helix serial.c debug code update

* Helix serial.c: Strict checking of the value of tid.

* adjust the delay of serial.c

* Helix serial.c: remove debug code

* remove EXTRAFLAGS += -DCONSOLE_ENABLE from five_rows/rules.mk

tmk_core/common.mk has
 >ifeq ($(strip $(CONSOLE_ENABLE)), yes)
 >   TMK_COMMON_DEFS += -DCONSOLE_ENABLE

* Fix error handling in split_scomm.c

* add some comment to serial.c

* add some comment about SELECT_SOFT_SERIAL_SPEED

3 files changed, 39 insertions, 28 deletions

diff --git a/keyboards/helix/rev2/keymaps/five_rows/rules.mk b/keyboards/helix/rev2/keymaps/five_rows/rules.mk
index 63106df76..f771c94c9 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/rules.mk
+++ b/keyboards/helix/rev2/keymaps/five_rows/rules.mk
@@ -122,10 +122,6 @@ ifeq ($(strip $(Link_Time_Optimization)),yes)
     EXTRAFLAGS += -flto -DUSE_Link_Time_Optimization
 endif
 
-ifeq ($(strip $(CONSOLE_ENABLE)),yes)
-    EXTRAFLAGS += -DCONSOLE_ENABLE
-endif
-
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
 
diff --git a/keyboards/helix/rev2/serial_config.h b/keyboards/helix/rev2/serial_config.h
index 8d7e62837..37135213d 100644
--- a/keyboards/helix/rev2/serial_config.h
+++ b/keyboards/helix/rev2/serial_config.h
@@ -1,15 +1,8 @@
-#ifndef SOFT_SERIAL_CONFIG_H
-#define SOFT_SERIAL_CONFIG_H
+//// #error rev2 serial config
 
+#ifndef SOFT_SERIAL_PIN
 /* Soft Serial defines */
-#define SERIAL_PIN_DDR DDRD
-#define SERIAL_PIN_PORT PORTD
-#define SERIAL_PIN_INPUT PIND
-#define SERIAL_PIN_MASK _BV(PD2)
-#define SERIAL_PIN_INTERRUPT INT2_vect
+#define SOFT_SERIAL_PIN D2
 
 #define SERIAL_USE_MULTI_TRANSACTION
-
-//// #error rev2 serial config
-
-#endif /* SOFT_SERIAL_CONFIG_H */
+#endif
diff --git a/keyboards/helix/rev2/split_scomm.c b/keyboards/helix/rev2/split_scomm.c
index 9719eb22e..50d233ce9 100644
--- a/keyboards/helix/rev2/split_scomm.c
+++ b/keyboards/helix/rev2/split_scomm.c
@@ -10,6 +10,9 @@
 #ifdef SERIAL_DEBUG_MODE
 #include <avr/io.h>
 #endif
+#ifdef CONSOLE_ENABLE
+  #include <print.h>
+#endif
 
 uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
 uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
@@ -17,6 +20,7 @@ uint8_t volatile status_com = 0;
 uint8_t volatile status1 = 0;
 uint8_t slave_buffer_change_count = 0;
 uint8_t s_change_old = 0xff;
+uint8_t s_change_new = 0xff;
 
 SSTD_t transactions[] = {
 #define GET_SLAVE_STATUS 0
@@ -41,12 +45,12 @@ SSTD_t transactions[] = {
 
 void serial_master_init(void)
 {
-    soft_serial_initiator_init(transactions);
+    soft_serial_initiator_init(transactions, TID_LIMIT(transactions));
 }
 
 void serial_slave_init(void)
 {
-    soft_serial_target_init(transactions);
+    soft_serial_target_init(transactions, TID_LIMIT(transactions));
 }
 
 // 0 => no error
@@ -54,19 +58,37 @@ void serial_slave_init(void)
 // 2 => checksum error
 int serial_update_buffers(int master_update)
 {
-    int status;
+    int status, smatstatus;
     static int need_retry = 0;
-    if( s_change_old != slave_buffer_change_count ) {
-	status = soft_serial_transaction(GET_SLAVE_BUFFER);
-	if( status == TRANSACTION_END )
-	    s_change_old = slave_buffer_change_count;
+
+    if( s_change_old != s_change_new ) {
+        smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
+        if( smatstatus == TRANSACTION_END ) {
+            s_change_old = s_change_new;
+#ifdef CONSOLE_ENABLE
+            uprintf("slave matrix = %b %b %b %b %b\n",
+                    serial_slave_buffer[0], serial_slave_buffer[1],
+                    serial_slave_buffer[2], serial_slave_buffer[3],
+                    serial_slave_buffer[4] );
+#endif
+        }
+    } else {
+        // serial_slave_buffer dosen't change
+        smatstatus = TRANSACTION_END; // dummy status
+    }
+
+    if( !master_update && !need_retry) {
+        status = soft_serial_transaction(GET_SLAVE_STATUS);
+    } else {
+        status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
+    }
+    if( status == TRANSACTION_END ) {
+        s_change_new = slave_buffer_change_count;
+        need_retry = 0;
+    } else {
+        need_retry = 1;
     }
-    if( !master_update && !need_retry)
-	status = soft_serial_transaction(GET_SLAVE_STATUS);
-    else
-	status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
-    need_retry = ( status == TRANSACTION_END ) ? 0 : 1;
-    return status;
+    return smatstatus;
 }
 
 #endif // SERIAL_USE_MULTI_TRANSACTION