xdci.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <intelblocks/xdci.h>
#include <security/vboot/vboot_common.h>
 
__weak void soc_xdci_init(struct device *dev) { /* no-op */ }
 
bool xdci_can_enable(unsigned int xdci_devfn)
{
        /* Enable xDCI controller if enabled in devicetree and allowed */
        if (!vboot_can_enable_udc()) {
                devfn_disable(pci_root_bus(), xdci_devfn);
                return false;
        }
        return is_devfn_enabled(xdci_devfn);
}
 
static struct device_operations usb_xdci_ops = {
        .read_resources         = pci_dev_read_resources,
        .set_resources          = pci_dev_set_resources,
        .enable_resources       = pci_dev_enable_resources,
        .init                   = soc_xdci_init,
        .ops_pci                = &pci_dev_ops_pci,
};
 
static const unsigned short pci_device_ids[] = {
        PCI_DID_INTEL_MTL_XDCI,
        PCI_DID_INTEL_APL_XDCI,
        PCI_DID_INTEL_CNL_LP_XDCI,
        PCI_DID_INTEL_GLK_XDCI,
        PCI_DID_INTEL_SPT_LP_XDCI,
        PCI_DID_INTEL_CNP_H_XDCI,
        PCI_DID_INTEL_ICP_LP_XDCI,
        PCI_DID_INTEL_CMP_LP_XDCI,
        PCI_DID_INTEL_CMP_H_XDCI,
        PCI_DID_INTEL_TGP_LP_XDCI,
        PCI_DID_INTEL_TGP_H_XDCI,
        PCI_DID_INTEL_MCC_XDCI,
        PCI_DID_INTEL_JSP_XDCI,
        PCI_DID_INTEL_ADP_P_XDCI,
        PCI_DID_INTEL_ADP_S_XDCI,
        PCI_DID_INTEL_ADP_M_XDCI,
        0
};
 
static const struct pci_driver pch_usb_xdci __pci_driver = {
        .ops     = &usb_xdci_ops,
        .vendor  = PCI_VID_INTEL,
        .devices         = pci_device_ids,
};