sdcard: replace fprintf() by qemu_hexdump()

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215220540.6556-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/sd/sd.c

@@ -44,13 +44,6 @@
 
 //#define DEBUG_SD 1
 
-#ifdef DEBUG_SD
-#define DPRINTF(fmt, ...) \
-do { fprintf(stderr, "SD: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF(fmt, ...) do {} while(0)
-#endif
-
 #define ACMD41_ENQUIRY_MASK     0x00ffffff
 #define OCR_POWER_UP            0x80000000
 #define OCR_POWER_DELAY_NS      500000 /* 0.5ms */
@@ -1632,14 +1625,7 @@ send_response:
     }
 
 #ifdef DEBUG_SD
-    if (rsplen) {
-        int i;
-        DPRINTF("Response:");
-        for (i = 0; i < rsplen; i++) {
-            DPRINTF(" %02x", response[i]);
-        }
-        DPRINTF(" state %d\n", sd->state);
-    }
+    qemu_hexdump((const char *)response, stderr, "Response", rsplen);
 #endif
 
     return rsplen;