[Qemu-devel] [PATCH] vga.c: move debug printfs to trace events

[Alex DAMIAN <alexandru.damian@intel.com>]

From: Alexandru DAMIAN <alexandru.damian@intel.com>

Move all register read/write log events from DEBUG
ifdefs to the tracing infrastructure.

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
---
 hw/vga.c     |   45 +++++++++++----------------------------------
 trace-events |    4 ++++
 2 files changed, 15 insertions(+), 34 deletions(-)

diff --git a/hw/vga.c b/hw/vga.c
index 59bfb22..f9292ed 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -32,11 +32,7 @@
 #include "hw/xen.h"
 #include "trace.h"
 
-//#define DEBUG_VGA
 //#define DEBUG_VGA_MEM
-//#define DEBUG_VGA_REG
-
-//#define DEBUG_BOCHS_VBE
 
 /* 16 state changes per vertical frame @60 Hz */
 #define VGA_TEXT_CURSOR_PERIOD_MS       (1000 * 2 * 16 / 60)
@@ -390,9 +386,7 @@ uint32_t vga_ioport_read(void *opaque, uint32_t addr)
             break;
         case VGA_SEQ_D:
             val = s->sr[s->sr_index];
-#ifdef DEBUG_VGA_REG
-            printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
-#endif
+	    trace_vga_register_read("SR", s->sr_index, val);
             break;
         case VGA_PEL_IR:
             val = s->dac_state;
@@ -418,9 +412,7 @@ uint32_t vga_ioport_read(void *opaque, uint32_t addr)
             break;
         case VGA_GFX_D:
             val = s->gr[s->gr_index];
-#ifdef DEBUG_VGA_REG
-            printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
-#endif
+            trace_vga_register_read("GR", s->gr_index, val);
             break;
         case VGA_CRT_IM:
         case VGA_CRT_IC:
@@ -429,9 +421,7 @@ uint32_t vga_ioport_read(void *opaque, uint32_t addr)
         case VGA_CRT_DM:
         case VGA_CRT_DC:
             val = s->cr[s->cr_index];
-#ifdef DEBUG_VGA_REG
-            printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
-#endif
+            trace_vga_register_read("CR", s->cr_index, val);
             break;
         case VGA_IS1_RM:
         case VGA_IS1_RC:
@@ -444,9 +434,7 @@ uint32_t vga_ioport_read(void *opaque, uint32_t addr)
             break;
         }
     }
-#if defined(DEBUG_VGA)
-    printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
-#endif
+    trace_vga_register_read("port", addr, val);
     return val;
 }
 
@@ -461,9 +449,8 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
     if (vga_ioport_invalid(s, addr)) {
         return;
     }
-#ifdef DEBUG_VGA
-    printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
-#endif
+    
+    trace_vga_register_write("port", addr, val);
 
     switch(addr) {
     case VGA_ATT_W:
@@ -505,9 +492,7 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
         s->sr_index = val & 7;
         break;
     case VGA_SEQ_D:
-#ifdef DEBUG_VGA_REG
-        printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
-#endif
+        trace_vga_register_write("SR", s->sr_index, val);
         s->sr[s->sr_index] = val & sr_mask[s->sr_index];
         if (s->sr_index == VGA_SEQ_CLOCK_MODE) {
             s->update_retrace_info(s);
@@ -536,9 +521,7 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
         s->gr_index = val & 0x0f;
         break;
     case VGA_GFX_D:
-#ifdef DEBUG_VGA_REG
-        printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
-#endif
+        trace_vga_register_write("GR", s->gr_index, val);
         s->gr[s->gr_index] = val & gr_mask[s->gr_index];
         vga_update_memory_access(s);
         break;
@@ -548,9 +531,7 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
         break;
     case VGA_CRT_DM:
     case VGA_CRT_DC:
-#ifdef DEBUG_VGA_REG
-        printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
-#endif
+        trace_vga_register_write("CR", s->cr_index, val);
         /* handle CR0-7 protection */
         if ((s->cr[VGA_CRTC_V_SYNC_END] & VGA_CR11_LOCK_CR0_CR7) &&
             s->cr_index <= VGA_CRTC_OVERFLOW) {
@@ -620,9 +601,7 @@ uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr)
     } else {
         val = 0;
     }
-#ifdef DEBUG_BOCHS_VBE
-    printf("VBE: read index=0x%x val=0x%x\n", s->vbe_index, val);
-#endif
+    trace_vga_register_read("VBE", s->vbe_index, val);
     return val;
 }
 
@@ -637,9 +616,7 @@ void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val)
     VGACommonState *s = opaque;
 
     if (s->vbe_index <= VBE_DISPI_INDEX_NB) {
-#ifdef DEBUG_BOCHS_VBE
-        printf("VBE: write index=0x%x val=0x%x\n", s->vbe_index, val);
-#endif
+        trace_vga_register_write("VBE", s->vbe_index, val);
         switch(s->vbe_index) {
         case VBE_DISPI_INDEX_ID:
             if (val == VBE_DISPI_ID0 ||
diff --git a/trace-events b/trace-events
index 7f34112..8a9e199 100644
--- a/trace-events
+++ b/trace-events
@@ -1101,3 +1101,7 @@ virtio_ccw_new_device(int cssid, int ssid, int schid, int devno, const char *dev
 
 # migration.c
 migrate_set_state(int new_state) "new state %d"
+
+# hw/vga.c
+vga_register_read(const char *name, int index, int value) "VGA: read %s %x = 0x%02x"
+vga_register_write(const char *name, int index, int value) "VGA: write %s %x = 0x%02x"
-- 
1.7.10.4