C++ (Cpp) radeon_atrm_call Examples

Example #1

File: radeon_bios.c Project: 174high/dell-driver

static bool radeon_atrm_get_bios(struct radeon_device *rdev)
{
	int ret;
	int size = 256 * 1024;
	int i;
	struct pci_dev *pdev = NULL;
	acpi_handle dhandle, atrm_handle;
	acpi_status status;
	bool found = false;

	/* ATRM is for the discrete card only */
	if (rdev->flags & RADEON_IS_IGP)
		return false;

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
		dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
		if (!dhandle)
			continue;

		status = acpi_get_handle(dhandle, "ATRM", &atrm_handle);
		if (!ACPI_FAILURE(status)) {
			found = true;
			break;
		}
	}

	if (!found)
		return false;

	rdev->bios = kmalloc(size, GFP_KERNEL);
	if (!rdev->bios) {
		DRM_ERROR("Unable to allocate bios\n");
		return false;
	}

	for (i = 0; i < size / ATRM_BIOS_PAGE; i++) {
		ret = radeon_atrm_call(atrm_handle,
				       rdev->bios,
				       (i * ATRM_BIOS_PAGE),
				       ATRM_BIOS_PAGE);
		if (ret < ATRM_BIOS_PAGE)
			break;
	}

	if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
		kfree(rdev->bios);
		return false;
	}
	return true;
}

Example #2

File: radeon_bios.c Project: coyizumi/cs111

static bool radeon_atrm_get_bios(struct radeon_device *rdev)
{
	int ret;
	int size = 256 * 1024;
	int i;
	device_t dev;
	ACPI_HANDLE dhandle, atrm_handle;
	ACPI_STATUS status;
	bool found = false;

	DRM_INFO("%s: ===> Try ATRM...\n", __func__);

	/* ATRM is for the discrete card only */
	if (rdev->flags & RADEON_IS_IGP) {
		DRM_INFO("%s: IGP card detected, skipping this method...\n",
		    __func__);
		return false;
	}

#ifdef FREEBSD_WIP
	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
#endif /* FREEBSD_WIP */
	if ((dev = pci_find_class(PCIC_DISPLAY, PCIS_DISPLAY_VGA)) != NULL) {
		DRM_INFO("%s: pci_find_class() found: %d:%d:%d:%d, vendor=%04x, device=%04x\n",
		    __func__,
		    pci_get_domain(dev),
		    pci_get_bus(dev),
		    pci_get_slot(dev),
		    pci_get_function(dev),
		    pci_get_vendor(dev),
		    pci_get_device(dev));
		DRM_INFO("%s: Get ACPI device handle\n", __func__);
		dhandle = acpi_get_handle(dev);
#ifdef FREEBSD_WIP
		if (!dhandle)
			continue;
#endif /* FREEBSD_WIP */
		if (!dhandle)
			return false;

		DRM_INFO("%s: Get ACPI handle for \"ATRM\"\n", __func__);
		status = AcpiGetHandle(dhandle, "ATRM", &atrm_handle);
		if (!ACPI_FAILURE(status)) {
			found = true;
#ifdef FREEBSD_WIP
			break;
#endif /* FREEBSD_WIP */
		} else {
			DRM_INFO("%s: Failed to get \"ATRM\" handle: %s\n",
			    __func__, AcpiFormatException(status));
		}
	}

	if (!found)
		return false;

	rdev->bios = malloc(size, DRM_MEM_DRIVER, M_NOWAIT);
	if (!rdev->bios) {
		DRM_ERROR("Unable to allocate bios\n");
		return false;
	}

	for (i = 0; i < size / ATRM_BIOS_PAGE; i++) {
		DRM_INFO("%s: Call radeon_atrm_call()\n", __func__);
		ret = radeon_atrm_call(atrm_handle,
				       rdev->bios,
				       (i * ATRM_BIOS_PAGE),
				       ATRM_BIOS_PAGE);
		if (ret < ATRM_BIOS_PAGE)
			break;
	}

	if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
		if (i == 0) {
			DRM_INFO("%s: Incorrect BIOS size\n", __func__);
		} else {
			DRM_INFO("%s: Incorrect BIOS signature: 0x%02X%02X\n",
			    __func__, rdev->bios[0], rdev->bios[1]);
		}
		free(rdev->bios, DRM_MEM_DRIVER);
		return false;
	}
	return true;
}
#else
static inline bool radeon_atrm_get_bios(struct radeon_device *rdev)
{
	return false;
}
#endif

static bool ni_read_disabled_bios(struct radeon_device *rdev)
{
	u32 bus_cntl;
	u32 d1vga_control;
	u32 d2vga_control;
	u32 vga_render_control;
	u32 rom_cntl;
	bool r;

	DRM_INFO("%s: ===> Try disabled BIOS (ni)...\n", __func__);

	bus_cntl = RREG32(R600_BUS_CNTL);
	d1vga_control = RREG32(AVIVO_D1VGA_CONTROL);
	d2vga_control = RREG32(AVIVO_D2VGA_CONTROL);
	vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL);
	rom_cntl = RREG32(R600_ROM_CNTL);

	/* enable the rom */
	WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS));
	/* Disable VGA mode */
	WREG32(AVIVO_D1VGA_CONTROL,
	       (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
		AVIVO_DVGA_CONTROL_TIMING_SELECT)));
	WREG32(AVIVO_D2VGA_CONTROL,
	       (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
		AVIVO_DVGA_CONTROL_TIMING_SELECT)));
	WREG32(AVIVO_VGA_RENDER_CONTROL,
	       (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
	WREG32(R600_ROM_CNTL, rom_cntl | R600_SCK_OVERWRITE);

	r = radeon_read_bios(rdev);

	/* restore regs */
	WREG32(R600_BUS_CNTL, bus_cntl);
	WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
	WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
	WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
	WREG32(R600_ROM_CNTL, rom_cntl);
	return r;
}