[Qemu-devel] [PATCH 2/4] vga-isa: convert to qdev

[Blue Swirl]

Signed-off-by: Blue Swirl <blauwir...@gmail.com>
---
 hw/pc.h      |    8 +++++++-
 hw/vga-isa.c |   51 +++++++++++++++++++++++++++++++++++++++++++++------
 hw/vga.c     |   22 ++++++++++++++--------
 hw/vga_int.h |    1 +
 4 files changed, 67 insertions(+), 15 deletions(-)

diff --git a/hw/pc.h b/hw/pc.h
index 64a3a22..475484a 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -181,7 +181,13 @@ enum vga_retrace_method {

 extern enum vga_retrace_method vga_retrace_method;

-int isa_vga_init(void);
+static inline int isa_vga_init(void)
+{
+    isa_create_simple("isa-vga");
+
+    return 0;
+}
+
 int pci_vga_init(PCIBus *bus);
 int isa_vga_mm_init(target_phys_addr_t vram_base,
                     target_phys_addr_t ctrl_base, int it_shift);
diff --git a/hw/vga-isa.c b/hw/vga-isa.c
index 3046054..fde0d56 100644
--- a/hw/vga-isa.c
+++ b/hw/vga-isa.c
@@ -29,16 +29,40 @@
 #include "qemu-timer.h"
 #include "loader.h"

-int isa_vga_init(void)
+typedef struct ISAVGAState {
+    ISADevice dev;
+    struct VGACommonState state;
+} ISAVGAState;
+
+static void vga_reset_isa(DeviceState *dev)
 {
-    VGACommonState *s;
+    ISAVGAState *d = container_of(dev, ISAVGAState, dev.qdev);
+    VGACommonState *s = &d->state;

-    s = qemu_mallocz(sizeof(*s));
+    vga_common_reset(s);
+}

-    vga_common_init(s, VGA_RAM_SIZE);
-    vga_init(s);
-    vmstate_register(NULL, 0, &vmstate_vga_common, s);
+static int vga_initfn(ISADevice *dev)
+{
+    ISAVGAState *d = DO_UPCAST(ISAVGAState, dev, dev);
+    VGACommonState *s = &d->state;
+    int vga_io_memory;

+    vga_common_init(s, VGA_RAM_SIZE);
+    vga_io_memory = vga_init_io(s);
+    cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
+                                 vga_io_memory);
+    qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
+    isa_init_ioport(dev, 0x3c0);
+    isa_init_ioport(dev, 0x3b4);
+    isa_init_ioport(dev, 0x3ba);
+    isa_init_ioport(dev, 0x3da);
+    isa_init_ioport(dev, 0x3c0);
+#ifdef CONFIG_BOCHS_VBE
+    isa_init_ioport(dev, 0x1ce);
+    isa_init_ioport(dev, 0x1cf);
+    isa_init_ioport(dev, 0x1d0);
+#endif /* CONFIG_BOCHS_VBE */
     s->ds = graphic_console_init(s->update, s->invalidate,
                                  s->screen_dump, s->text_update, s);

@@ -47,3 +71,18 @@ int isa_vga_init(void)
     rom_add_vga(VGABIOS_FILENAME);
     return 0;
 }
+
+static ISADeviceInfo vga_info = {
+    .qdev.name     = "isa-vga",
+    .qdev.size     = sizeof(ISAVGAState),
+    .qdev.vmsd     = &vmstate_vga_common,
+    .qdev.reset     = vga_reset_isa,
+    .qdev.no_user  = 1,
+    .init          = vga_initfn,
+};
+
+static void vga_register(void)
+{
+    isa_qdev_register(&vga_info);
+}
+device_init(vga_register)
diff --git a/hw/vga.c b/hw/vga.c
index e2151a2..fd492d0 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -2259,12 +2259,8 @@ void vga_common_init(VGACommonState *s, int vga_ram_size)
 }

 /* used by both ISA and PCI */
-void vga_init(VGACommonState *s)
+int vga_init_io(VGACommonState *s)
 {
-    int vga_io_memory;
-
-    qemu_register_reset(vga_reset, s);
-
     register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);

     register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
@@ -2278,7 +2274,6 @@ void vga_init(VGACommonState *s)
     register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
     register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
     register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
-    s->bank_offset = 0;

 #ifdef CONFIG_BOCHS_VBE
 #if defined (TARGET_I386)
@@ -2296,8 +2291,19 @@ void vga_init(VGACommonState *s)
 #endif
 #endif /* CONFIG_BOCHS_VBE */

-    vga_io_memory = cpu_register_io_memory(vga_mem_read, vga_mem_write, s,
-                                           DEVICE_LITTLE_ENDIAN);
+    return cpu_register_io_memory(vga_mem_read, vga_mem_write, s,
+                                  DEVICE_LITTLE_ENDIAN);
+}
+
+void vga_init(VGACommonState *s)
+{
+    int vga_io_memory;
+
+    qemu_register_reset(vga_reset, s);
+
+    s->bank_offset = 0;
+
+    vga_io_memory = vga_init_io(s);
     cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
                                  vga_io_memory);
     qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
diff --git a/hw/vga_int.h b/hw/vga_int.h
index 1067f2c..d2811bd 100644
--- a/hw/vga_int.h
+++ b/hw/vga_int.h
@@ -191,6 +191,7 @@ static inline int c6_to_8(int v)

 void vga_common_init(VGACommonState *s, int vga_ram_size);
 void vga_init(VGACommonState *s);
+int vga_init_io(VGACommonState *s);
 void vga_common_reset(VGACommonState *s);

 void vga_dirty_log_start(VGACommonState *s);
-- 
1.6.2.4

0002-vga-isa-convert-to-qdev.patch
Description: application/mbox