haraldwolff/qemu-patch-raspberry4
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sm501: Add emulation of chip connected via PCI

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Only the display controller part is created automatically on PCI

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Message-id: 647d292c6f5abba8b2a614687229949b5dcb864e.1492787889.git.balaton@eik.bme.hu
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
BALATON Zoltan 2017-04-21 17:18:09 +02:00 committed by Peter Maydell
parent c795fa8447
commit efae27848d
2 changed files with 68 additions and 0 deletions
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65
hw/display/sm501.c
View file

@ -32,6 +32,7 @@
#include "ui/console.h"
#include "hw/devices.h"
#include "hw/sysbus.h"
#include "hw/pci/pci.h"
#include "qemu/range.h"
#include "ui/pixel_ops.h"
#include "exec/address-spaces.h"
@ -1547,9 +1548,73 @@ static const TypeInfo sm501_sysbus_info = {
.class_init = sm501_sysbus_class_init,
};
#define TYPE_PCI_SM501 "sm501"
#define PCI_SM501(obj) OBJECT_CHECK(SM501PCIState, (obj), TYPE_PCI_SM501)
typedef struct {
/*< private >*/
PCIDevice parent_obj;
/*< public >*/
SM501State state;
uint32_t vram_size;
} SM501PCIState;
static void sm501_realize_pci(PCIDevice *dev, Error **errp)
{
SM501PCIState *s = PCI_SM501(dev);
sm501_init(&s->state, DEVICE(dev), s->vram_size);
if (get_local_mem_size(&s->state) != s->vram_size) {
error_setg(errp, "Invalid VRAM size, nearest valid size is %" PRIu32,
get_local_mem_size(&s->state));
return;
}
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY,
&s->state.local_mem_region);
pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_MEMORY,
&s->state.mmio_region);
}
static Property sm501_pci_properties[] = {
DEFINE_PROP_UINT32("vram-size", SM501PCIState, vram_size, 64 * M_BYTE),
DEFINE_PROP_END_OF_LIST(),
};
static void sm501_reset_pci(DeviceState *dev)
{
SM501PCIState *s = PCI_SM501(dev);
sm501_reset(&s->state);
/* Bits 2:0 of misc_control register is 001 for PCI */
s->state.misc_control |= 1;
}
static void sm501_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = sm501_realize_pci;
k->vendor_id = PCI_VENDOR_ID_SILICON_MOTION;
k->device_id = PCI_DEVICE_ID_SM501;
k->class_id = PCI_CLASS_DISPLAY_OTHER;
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
dc->desc = "SM501 Display Controller";
dc->props = sm501_pci_properties;
dc->reset = sm501_reset_pci;
dc->hotpluggable = false;
}
static const TypeInfo sm501_pci_info = {
.name = TYPE_PCI_SM501,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(SM501PCIState),
.class_init = sm501_pci_class_init,
};
static void sm501_register_types(void)
{
type_register_static(&sm501_sysbus_info);
type_register_static(&sm501_pci_info);
}
type_init(sm501_register_types)

3
include/hw/pci/pci_ids.h
View file

@ -207,6 +207,9 @@
#define PCI_VENDOR_ID_MARVELL 0x11ab
#define PCI_VENDOR_ID_SILICON_MOTION 0x126f
#define PCI_DEVICE_ID_SM501 0x0501
#define PCI_VENDOR_ID_ENSONIQ 0x1274
#define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000