C++ (Cpp) generate_vbt Examples

Example #1

File: vbt.c Project: MrTomasz/coreboot

void
generate_fake_intel_oprom(const struct i915_gpu_controller_info *conf,
			  struct device *dev, const char *idstr)
{
		optionrom_header_t *oh = (void *)PCI_VGA_RAM_IMAGE_START;
		optionrom_pcir_t *pcir;
		size_t vbt_size;
		size_t fake_oprom_size;

		memset(oh, 0, 8192);

		oh->signature = PCI_ROM_HDR;
		oh->pcir_offset = 0x40;
		oh->vbt_offset = 0x80;

		pcir = (void *)(PCI_VGA_RAM_IMAGE_START + 0x40);
		pcir->signature = 0x52494350;	// PCIR
		pcir->vendor = dev->vendor;
		pcir->device = dev->device;
		pcir->length = sizeof(*pcir);
		pcir->revision = dev->class;
		pcir->classcode[0] = dev->class >> 8;
		pcir->classcode[1] = dev->class >> 16;
		pcir->classcode[2] = dev->class >> 24;
		pcir->indicator = 0x80;

		vbt_size = generate_vbt (conf, (void *)(PCI_VGA_RAM_IMAGE_START + 0x80), idstr);
		fake_oprom_size = (0x80 + vbt_size + 511) / 512;
		oh->size = fake_oprom_size;
		pcir->imagelength = fake_oprom_size;

}

Example #2

File: vbt.c Project: pcengines/coreboot

void
generate_fake_intel_oprom(const struct i915_gpu_controller_info *const conf,
			  struct device *const dev, const char *const idstr)
{
	optionrom_header_t *const oh = (void *)PCI_VGA_RAM_IMAGE_START;

	memset(oh, 0, 8192);

	oh->signature = PCI_ROM_HDR;
	oh->pcir_offset = 0x40;
	oh->vbt_offset = 0x80;

	optionrom_pcir_t *const pcir = (void *)((u8 *)oh + oh->pcir_offset);
	pcir->signature = 0x52494350;	// PCIR
	pcir->vendor = dev->vendor;
	pcir->device = dev->device;
	pcir->length = sizeof(*pcir);
	pcir->revision = pci_read_config8(dev, PCI_CLASS_REVISION);
	pcir->classcode[0] = dev->class;
	pcir->classcode[1] = dev->class >> 8;
	pcir->classcode[2] = dev->class >> 16;
	pcir->indicator = 0x80;

	const size_t vbt_size =
		generate_vbt(conf, (void *)((u8 *)oh + oh->vbt_offset), idstr);
	const size_t fake_oprom_size =
		DIV_ROUND_UP(oh->vbt_offset + vbt_size, 512);
	oh->size = fake_oprom_size;
	pcir->imagelength = fake_oprom_size;
}