[Qemu-devel] [PATCH 5/8] i.MX: Standardize i.MX CCM debug

[Jean-Christophe Dubois]

The goal is to have debug code always compiled during build.

Signed-off-by: Jean-Christophe Dubois <j...@tribudubois.net>
---
 hw/misc/imx_ccm.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/hw/misc/imx_ccm.c b/hw/misc/imx_ccm.c
index 2e19dbb..f137de1 100644
--- a/hw/misc/imx_ccm.c
+++ b/hw/misc/imx_ccm.c
@@ -16,14 +16,18 @@
 #define CKIH_FREQ 26000000 /* 26MHz crystal input */
 #define CKIL_FREQ    32768 /* nominal 32khz clock */
 
-//#define DEBUG_CCM 1
-#ifdef DEBUG_CCM
-#define DPRINTF(fmt, args...) \
-do { printf("%s: " fmt , TYPE_IMX_CCM, ##args); } while (0)
-#else
-#define DPRINTF(fmt, args...) do {} while (0)
+#ifndef DEBUG_IMX_CCM
+#define DEBUG_IMX_CCM 0
 #endif
 
+#define DPRINTF(fmt, args...) \
+          do { \
+              if (DEBUG_IMX_CCM) { \
+                  fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_CCM, \
+                                                   __func__, ##args); \
+              } \
+          } while (0)
+
 static int imx_ccm_post_load(void *opaque, int version_id);
 
 static const VMStateDescription vmstate_imx_ccm = {
@@ -135,7 +139,8 @@ static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
 {
     IMXCCMState *s = (IMXCCMState *)opaque;
 
-    DPRINTF("%s(offset=%x)", __func__, offset >> 2);
+    DPRINTF("%s(offset=%x)", __func__, (int)(offset >> 2));
+
     switch (offset >> 2) {
     case 0: /* CCMR */
         DPRINTF(" ccmr = 0x%x\n", s->ccmr);
@@ -166,9 +171,11 @@ static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
     case 23:
         DPRINTF(" pcmr0 = 0x%x\n", s->pmcr0);
         return s->pmcr0;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s[%s]: Bad register at offset %d\n",
+                      TYPE_IMX_CCM, __func__, (int)offset);
+        return 0;
     }
-    DPRINTF(" return 0\n");
-    return 0;
 }
 
 static void imx_ccm_write(void *opaque, hwaddr offset,
@@ -177,7 +184,8 @@ static void imx_ccm_write(void *opaque, hwaddr offset,
     IMXCCMState *s = (IMXCCMState *)opaque;
 
     DPRINTF("%s(offset=%x, value = %x)\n", __func__,
-            offset >> 2, (unsigned int)value);
+            (int)(offset >> 2), (unsigned int)value);
+
     switch (offset >> 2) {
     case 0:
         s->ccmr = CCMR_FPMF | (value & 0x3b6fdfff);
@@ -205,6 +213,8 @@ static void imx_ccm_write(void *opaque, hwaddr offset,
         return;
 
     default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s[%s]: Bad register at offset %d\n",
+                      TYPE_IMX_CCM, __func__, (int)offset);
         return;
     }
     update_clocks(s);
-- 
2.1.4