chore: Fix a few compiler warnings

Signed-off-by: Rahix <rahix@rahix.de>

epicardium/api/genapi.py

@@ -44,7 +44,7 @@ def main():
             re.DOTALL | re.MULTILINE,
         )
 
-        args_matcher = re.compile(r"(?P<type>\w+(?:\*+|\s+))(?P<name>\w+),")
+        args_matcher = re.compile(r"(?P<type>(?:const )?\w+(?:\*+|\s+))(?P<name>\w+),")
 
         # Open output files
         f_client = cx.enter_context(open(args.client, "w"))

epicardium/epicardium.h

@@ -7,7 +7,7 @@
 #endif
 
 #define API_UART_WRITE 0x1
-API(API_UART_WRITE, void epic_uart_write_str(char*str, intptr_t length));
+API(API_UART_WRITE, void epic_uart_write_str(const char*str, intptr_t length));
 
 #define API_UART_READ  0x2
 API(API_UART_READ, char epic_uart_read_chr(void));

epicardium/main.c

@@ -2,6 +2,7 @@
 #include "card10.h"
 #include "uart.h"
 #include "cdcacm.h"
+#include "leds.h"
 #include "api/dispatcher.h"
 
 extern mxc_uart_regs_t * ConsoleUart;

pycardium/mphalport.c

@@ -7,6 +7,7 @@
 #include "py/runtime.h"
 
 #include "epicardium.h"
+#include "mxc_delay.h"
 
 /******************************************************************************
  * Serial Communication