console: vga_hw_screen_dump_ptr: take Error argument

All devices that register a screen dump callback via
graphic_console_init() are updated.

The new argument is not used in this commit. Error handling will
be added to each device individually later.

This change is a preparation to convert the screendump command
to the QAPI.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

console.c

@@ -190,7 +190,7 @@ void vga_hw_screen_dump(const char *filename)
         console_select(0);
     }
     if (consoles[0] && consoles[0]->hw_screen_dump) {
-        consoles[0]->hw_screen_dump(consoles[0]->hw, filename, cswitch);
+        consoles[0]->hw_screen_dump(consoles[0]->hw, filename, cswitch, NULL);
     } else {
         error_report("screen dump not implemented");
     }

console.h

@@ -7,6 +7,7 @@
 #include "monitor.h"
 #include "trace.h"
 #include "qapi-types.h"
+#include "error.h"
 
 /* keyboard/mouse support */
 
@@ -344,7 +345,8 @@ static inline void console_write_ch(console_ch_t *dest, uint32_t ch)
 
 typedef void (*vga_hw_update_ptr)(void *);
 typedef void (*vga_hw_invalidate_ptr)(void *);
-typedef void (*vga_hw_screen_dump_ptr)(void *, const char *, bool cswitch);
+typedef void (*vga_hw_screen_dump_ptr)(void *, const char *, bool cswitch,
+                                       Error **errp);
 typedef void (*vga_hw_text_update_ptr)(void *, console_ch_t *);
 
 DisplayState *graphic_console_init(vga_hw_update_ptr update,

hw/blizzard.c

@@ -933,7 +933,7 @@ static void blizzard_update_display(void *opaque)
 }
 
 static void blizzard_screen_dump(void *opaque, const char *filename,
-                                 bool cswitch)
+                                 bool cswitch, Error **errp)
 {
     BlizzardState *s = (BlizzardState *) opaque;
 

hw/g364fb.c

@@ -289,7 +289,8 @@ static void g364fb_reset(G364State *s)
     g364fb_invalidate_display(s);
 }
 
-static void g364fb_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void g364fb_screen_dump(void *opaque, const char *filename, bool cswitch,
+                               Error **errp)
 {
     G364State *s = opaque;
     int y, x;

hw/omap_lcdc.c

@@ -264,7 +264,8 @@ static int ppm_save(const char *filename, uint8_t *data,
     return 0;
 }
 
-static void omap_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void omap_screen_dump(void *opaque, const char *filename, bool cswitch,
+                             Error **errp)
 {
     struct omap_lcd_panel_s *omap_lcd = opaque;
 

hw/qxl.c

@@ -1595,7 +1595,8 @@ static void qxl_hw_invalidate(void *opaque)
     vga->invalidate(vga);
 }
 
-static void qxl_hw_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void qxl_hw_screen_dump(void *opaque, const char *filename, bool cswitch,
+                               Error **errp)
 {
     PCIQXLDevice *qxl = opaque;
     VGACommonState *vga = &qxl->vga;
@@ -1607,7 +1608,7 @@ static void qxl_hw_screen_dump(void *opaque, const char *filename, bool cswitch)
         ppm_save(filename, qxl->ssd.ds->surface);
         break;
     case QXL_MODE_VGA:
-        vga->screen_dump(vga, filename, cswitch);
+        vga->screen_dump(vga, filename, cswitch, errp);
         break;
     default:
         break;

hw/tcx.c

@@ -56,8 +56,10 @@ typedef struct TCXState {
     uint8_t dac_index, dac_state;
 } TCXState;
 
-static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch);
-static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch);
+static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp);
+static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp);
 
 static void tcx_set_dirty(TCXState *s)
 {
@@ -574,7 +576,8 @@ static int tcx_init1(SysBusDevice *dev)
     return 0;
 }
 
-static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp)
 {
     TCXState *s = opaque;
     FILE *f;
@@ -601,7 +604,8 @@ static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch)
     return;
 }
 
-static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
+                              Error **errp)
 {
     TCXState *s = opaque;
     FILE *f;

hw/vga.c

@@ -166,7 +166,8 @@ static uint32_t expand4[256];
 static uint16_t expand2[256];
 static uint8_t expand4to8[16];
 
-static void vga_screen_dump(void *opaque, const char *filename, bool cswitch);
+static void vga_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp);
 
 static void vga_update_memory_access(VGACommonState *s)
 {
@@ -2435,7 +2436,8 @@ int ppm_save(const char *filename, struct DisplaySurface *ds)
 
 /* save the vga display in a PPM image even if no display is
    available */
-static void vga_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void vga_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp)
 {
     VGACommonState *s = opaque;
 

hw/vmware_vga.c

@@ -1003,11 +1003,12 @@ static void vmsvga_invalidate_display(void *opaque)
 
 /* save the vga display in a PPM image even if no display is
    available */
-static void vmsvga_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void vmsvga_screen_dump(void *opaque, const char *filename, bool cswitch,
+                               Error **errp)
 {
     struct vmsvga_state_s *s = opaque;
     if (!s->enable) {
-        s->vga.screen_dump(&s->vga, filename, cswitch);
+        s->vga.screen_dump(&s->vga, filename, cswitch, errp);
         return;
     }