From 94692dcd71473622f3a14416dae67e73e7e733ec Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Wed, 13 Jun 2018 14:29:46 +0200 Subject: [PATCH] hw/display: add standalone ramfb device Signed-off-by: Gerd Hoffmann Tested-by: Laszlo Ersek Message-id: 20180613122948.18149-3-kraxel@redhat.com Signed-off-by: Gerd Hoffmann --- hw/arm/sysbus-fdt.c | 7 +++++ hw/arm/virt.c | 2 ++ hw/display/Makefile.objs | 1 + hw/display/ramfb-standalone.c | 62 +++++++++++++++++++++++++++++++++++++++++++ hw/i386/pc_piix.c | 2 ++ hw/i386/pc_q35.c | 2 ++ include/hw/display/ramfb.h | 3 +++ 7 files changed, 79 insertions(+) create mode 100644 hw/display/ramfb-standalone.c diff --git a/hw/arm/sysbus-fdt.c b/hw/arm/sysbus-fdt.c index e4c492ea44..277ed872e7 100644 --- a/hw/arm/sysbus-fdt.c +++ b/hw/arm/sysbus-fdt.c @@ -36,6 +36,7 @@ #include "hw/vfio/vfio-platform.h" #include "hw/vfio/vfio-calxeda-xgmac.h" #include "hw/vfio/vfio-amd-xgbe.h" +#include "hw/display/ramfb.h" #include "hw/arm/fdt.h" /* @@ -406,12 +407,18 @@ static int add_amd_xgbe_fdt_node(SysBusDevice *sbdev, void *opaque) #endif /* CONFIG_LINUX */ +static int no_fdt_node(SysBusDevice *sbdev, void *opaque) +{ + return 0; +} + /* list of supported dynamic sysbus devices */ static const NodeCreationPair add_fdt_node_functions[] = { #ifdef CONFIG_LINUX {TYPE_VFIO_CALXEDA_XGMAC, add_calxeda_midway_xgmac_fdt_node}, {TYPE_VFIO_AMD_XGBE, add_amd_xgbe_fdt_node}, #endif + {TYPE_RAMFB_DEVICE, no_fdt_node}, {"", NULL}, /* last element */ }; diff --git a/hw/arm/virt.c b/hw/arm/virt.c index f0a4fa004c..98b99cf236 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -36,6 +36,7 @@ #include "hw/arm/virt.h" #include "hw/vfio/vfio-calxeda-xgmac.h" #include "hw/vfio/vfio-amd-xgbe.h" +#include "hw/display/ramfb.h" #include "hw/devices.h" #include "net/net.h" #include "sysemu/device_tree.h" @@ -1659,6 +1660,7 @@ static void virt_machine_class_init(ObjectClass *oc, void *data) mc->max_cpus = 255; machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_CALXEDA_XGMAC); machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_AMD_XGBE); + machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); mc->block_default_type = IF_VIRTIO; mc->no_cdrom = 1; mc->pci_allow_0_address = true; diff --git a/hw/display/Makefile.objs b/hw/display/Makefile.objs index 0af04985d2..fb8408c6d0 100644 --- a/hw/display/Makefile.objs +++ b/hw/display/Makefile.objs @@ -1,4 +1,5 @@ common-obj-y += ramfb.o +common-obj-y += ramfb-standalone.o common-obj-$(CONFIG_ADS7846) += ads7846.o common-obj-$(CONFIG_VGA_CIRRUS) += cirrus_vga.o diff --git a/hw/display/ramfb-standalone.c b/hw/display/ramfb-standalone.c new file mode 100644 index 0000000000..c0d241ba01 --- /dev/null +++ b/hw/display/ramfb-standalone.c @@ -0,0 +1,62 @@ +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/loader.h" +#include "hw/isa/isa.h" +#include "hw/display/ramfb.h" +#include "ui/console.h" +#include "sysemu/sysemu.h" + +#define RAMFB(obj) OBJECT_CHECK(RAMFBStandaloneState, (obj), TYPE_RAMFB_DEVICE) + +typedef struct RAMFBStandaloneState { + SysBusDevice parent_obj; + QemuConsole *con; + RAMFBState *state; +} RAMFBStandaloneState; + +static void display_update_wrapper(void *dev) +{ + RAMFBStandaloneState *ramfb = RAMFB(dev); + + if (0 /* native driver active */) { + /* non-standalone device would run native display update here */; + } else { + ramfb_display_update(ramfb->con, ramfb->state); + } +} + +static const GraphicHwOps wrapper_ops = { + .gfx_update = display_update_wrapper, +}; + +static void ramfb_realizefn(DeviceState *dev, Error **errp) +{ + RAMFBStandaloneState *ramfb = RAMFB(dev); + + ramfb->con = graphic_console_init(dev, 0, &wrapper_ops, dev); + ramfb->state = ramfb_setup(errp); +} + +static void ramfb_class_initfn(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); + dc->realize = ramfb_realizefn; + dc->desc = "ram framebuffer standalone device"; + dc->user_creatable = true; +} + +static const TypeInfo ramfb_info = { + .name = TYPE_RAMFB_DEVICE, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(RAMFBStandaloneState), + .class_init = ramfb_class_initfn, +}; + +static void ramfb_register_types(void) +{ + type_register_static(&ramfb_info); +} + +type_init(ramfb_register_types) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 3b87f3cedb..e9b6f064fb 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -28,6 +28,7 @@ #include "hw/loader.h" #include "hw/i386/pc.h" #include "hw/i386/apic.h" +#include "hw/display/ramfb.h" #include "hw/smbios/smbios.h" #include "hw/pci/pci.h" #include "hw/pci/pci_ids.h" @@ -423,6 +424,7 @@ static void pc_i440fx_machine_options(MachineClass *m) m->desc = "Standard PC (i440FX + PIIX, 1996)"; m->default_machine_opts = "firmware=bios-256k.bin"; m->default_display = "std"; + machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); } static void pc_i440fx_3_0_machine_options(MachineClass *m) diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 087f2630f9..1a73e1848a 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -45,6 +45,7 @@ #include "hw/i386/ich9.h" #include "hw/i386/amd_iommu.h" #include "hw/i386/intel_iommu.h" +#include "hw/display/ramfb.h" #include "hw/smbios/smbios.h" #include "hw/ide/pci.h" #include "hw/ide/ahci.h" @@ -305,6 +306,7 @@ static void pc_q35_machine_options(MachineClass *m) m->no_floppy = 1; machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE); machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE); + machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); m->max_cpus = 288; } diff --git a/include/hw/display/ramfb.h b/include/hw/display/ramfb.h index a3d4c79942..b33a2c467b 100644 --- a/include/hw/display/ramfb.h +++ b/include/hw/display/ramfb.h @@ -6,4 +6,7 @@ typedef struct RAMFBState RAMFBState; void ramfb_display_update(QemuConsole *con, RAMFBState *s); RAMFBState *ramfb_setup(Error **errp); +/* ramfb-standalone.c */ +#define TYPE_RAMFB_DEVICE "ramfb" + #endif /* RAMFB_H */ -- 2.11.4.GIT