Merge branch 'master' into 'master'

lpc+kbd: Disable circle+1 power on cmd when SoM is already on

See merge request reform/reform!27

reform2-keyboard-fw/remote.c

@@ -322,6 +322,8 @@ int remote_turn_on_som(void) {
     return ok;
   }
 
+  if (strncmp(response, "system: already on", 18) == 0) ok = 0;
+
   remote_som_power_expected_state = 1;
   return ok;
 }

reform2-lpc-fw/src/boards/reform2/board_reform2.c

@@ -627,9 +627,14 @@ void handle_commands() {
           sprintf(uartBuffer,"system: auxpwr on\r\n");
           uartSend((uint8_t*)uartBuffer, strlen(uartBuffer));
         } else {
-          turn_som_power_on();
-          sprintf(uartBuffer,"system: on\r\n");
-          uartSend((uint8_t*)uartBuffer, strlen(uartBuffer));
+          if (som_is_powered) {
+              sprintf(uartBuffer,"system: already on\r\n");
+              uartSend((uint8_t*)uartBuffer, strlen(uartBuffer));
+          } else {
+              turn_som_power_on();
+              sprintf(uartBuffer,"system: on\r\n");
+              uartSend((uint8_t*)uartBuffer, strlen(uartBuffer));
+          }
         }
       }
       else if (remote_cmd == 'x') {