1 files changed, 0 insertions, 37 deletions
diff --git a/src/graphics/mbox.c b/src/graphics/mbox.c
deleted file mode 100644
index 0dac497..0000000
--- a/src/graphics/mbox.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <symbols.h>
-
-/* mailbox message buffer */
-volatile unsigned int  __attribute__((aligned(16))) mbox[36];
-
-#define VIDEOCORE_MBOX  (MMIO_BASE+0x0000B880)
-#define MBOX_READ       ((volatile unsigned int*)(VIDEOCORE_MBOX+0x0))
-#define MBOX_POLL       ((volatile unsigned int*)(VIDEOCORE_MBOX+0x10))
-#define MBOX_SENDER     ((volatile unsigned int*)(VIDEOCORE_MBOX+0x14))
-#define MBOX_STATUS     ((volatile unsigned int*)(VIDEOCORE_MBOX+0x18))
-#define MBOX_CONFIG     ((volatile unsigned int*)(VIDEOCORE_MBOX+0x1C))
-#define MBOX_WRITE      ((volatile unsigned int*)(VIDEOCORE_MBOX+0x20))
-#define MBOX_RESPONSE   0x80000000
-#define MBOX_FULL       0x80000000
-#define MBOX_EMPTY      0x40000000
-
-/**
- * Make a mailbox call. Returns 0 on failure, non-zero on success
- */
-int mbox_call(unsigned char ch)
-{
-    unsigned int r = (((unsigned int)((unsigned long)&mbox)&~0xF) | (ch&0xF));
-    /* wait until we can write to the mailbox */
-    do{asm volatile("nop");}while(*MBOX_STATUS & MBOX_FULL);
-    /* write the address of our message to the mailbox with channel identifier */
-    *MBOX_WRITE = r;
-    /* now wait for the response */
-    while(1) {
-        /* is there a response? */
-        do{asm volatile("nop");}while(*MBOX_STATUS & MBOX_EMPTY);
-        /* is it a response to our message? */
-        if(r == *MBOX_READ)
-            /* is it a valid successful response? */
-            return mbox[1]==MBOX_RESPONSE;
-    }
-    return 0;
-}