console: allow VCs to be overridden by UI

We want to expose VCs using a VteTerminal widget.  We need access to provide our
own CharDriverState in order to do this.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1361367806-4599-3-git-send-email-aliguori@us.ibm.com

include/ui/console.h

@@ -443,7 +443,6 @@ void vga_hw_text_update(console_ch_t *chardata);
 
 int is_graphic_console(void);
 int is_fixedsize_console(void);
-CharDriverState *text_console_init(QemuOpts *opts);
 void text_consoles_set_display(DisplayState *ds);
 void console_select(unsigned int index);
 void console_color_init(DisplayState *ds);
@@ -451,6 +450,11 @@ void qemu_console_resize(DisplayState *ds, int width, int height);
 void qemu_console_copy(DisplayState *ds, int src_x, int src_y,
                        int dst_x, int dst_y, int w, int h);
 
+typedef CharDriverState *(VcHandler)(QemuOpts *);
+
+CharDriverState *vc_init(QemuOpts *opts);
+void register_vc_handler(VcHandler *handler);
+
 /* sdl.c */
 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame);
 

qemu-char.c

@@ -2980,7 +2980,7 @@ static const struct {
     { .name = "socket",    .open = qemu_chr_open_socket },
     { .name = "udp",       .open = qemu_chr_open_udp },
     { .name = "msmouse",   .open = qemu_chr_open_msmouse },
-    { .name = "vc",        .open = text_console_init },
+    { .name = "vc",        .open = vc_init },
     { .name = "memory",    .open = qemu_chr_open_ringbuf },
 #ifdef _WIN32
     { .name = "file",      .open = qemu_chr_open_win_file_out },

ui/console.c

@@ -1537,7 +1537,7 @@ static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
         chr->init(chr);
 }
 
-CharDriverState *text_console_init(QemuOpts *opts)
+static CharDriverState *text_console_init(QemuOpts *opts)
 {
     CharDriverState *chr;
     QemuConsole *s;
@@ -1573,6 +1573,18 @@ CharDriverState *text_console_init(QemuOpts *opts)
     return chr;
 }
 
+static VcHandler *vc_handler = text_console_init;
+
+CharDriverState *vc_init(QemuOpts *opts)
+{
+    return vc_handler(opts);
+}
+
+void register_vc_handler(VcHandler *handler)
+{
+    vc_handler = handler;
+}
+
 void text_consoles_set_display(DisplayState *ds)
 {
     int i;