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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2019 Ramon Fried <ramon.fried@gmail.com>
- */
- #include <common.h>
- #include <dm.h>
- #include <errno.h>
- #include <pci.h>
- #include <pci_ep.h>
- #include <asm/test.h>
- /**
- * struct sandbox_pci_ep_priv - private data for driver
- * @hdr: Stores the EP device header
- * @msix: required MSIx count;
- * @msi: required MSI count;
- */
- struct sandbox_pci_ep_priv {
- struct pci_ep_header hdr;
- struct pci_bar bars[6];
- int msix;
- int msi;
- int irq_count;
- };
- /* Method exported for testing purposes */
- int sandbox_get_pci_ep_irq_count(struct udevice *dev)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- return priv->irq_count;
- }
- static const struct udevice_id sandbox_pci_ep_ids[] = {
- { .compatible = "sandbox,pci_ep" },
- { }
- };
- static int sandbox_write_header(struct udevice *dev, uint fn,
- struct pci_ep_header *hdr)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- memcpy(&priv->hdr, hdr, sizeof(*hdr));
- return 0;
- }
- static int sandbox_read_header(struct udevice *dev, uint fn,
- struct pci_ep_header *hdr)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- memcpy(hdr, &priv->hdr, sizeof(*hdr));
- return 0;
- }
- static int sandbox_set_bar(struct udevice *dev, uint fn,
- struct pci_bar *ep_bar)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- int bar_idx;
- if (fn > 0)
- return -ENODEV;
- bar_idx = ep_bar->barno;
- memcpy(&priv->bars[bar_idx], ep_bar, sizeof(*ep_bar));
- return 0;
- }
- static int sandbox_read_bar(struct udevice *dev, uint fn,
- struct pci_bar *ep_bar, enum pci_barno barno)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- memcpy(ep_bar, &priv->bars[barno], sizeof(*ep_bar));
- return 0;
- }
- static int sandbox_set_msi(struct udevice *dev, uint fn, uint interrupts)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- priv->msi = interrupts;
- return 0;
- }
- static int sandbox_get_msi(struct udevice *dev, uint fn)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- return priv->msi;
- }
- static int sandbox_set_msix(struct udevice *dev, uint fn, uint interrupts)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- priv->msix = interrupts;
- return 0;
- }
- static int sandbox_get_msix(struct udevice *dev, uint fn)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- return priv->msix;
- }
- static int sandbox_raise_irq(struct udevice *dev, uint fn,
- enum pci_ep_irq_type type, uint interrupt_num)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- if (fn > 0)
- return -ENODEV;
- priv->irq_count++;
- return 0;
- }
- static int sandbox_pci_ep_probe(struct udevice *dev)
- {
- struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
- memset(priv, 0, sizeof(*priv));
- return 0;
- }
- static struct pci_ep_ops sandbox_pci_ep_ops = {
- .write_header = sandbox_write_header,
- .read_header = sandbox_read_header,
- .set_bar = sandbox_set_bar,
- .read_bar = sandbox_read_bar,
- .set_msi = sandbox_set_msi,
- .get_msi = sandbox_get_msi,
- .set_msix = sandbox_set_msix,
- .get_msix = sandbox_get_msix,
- .raise_irq = sandbox_raise_irq,
- };
- U_BOOT_DRIVER(pci_ep_sandbox) = {
- .name = "pci_ep_sandbox",
- .id = UCLASS_PCI_EP,
- .of_match = sandbox_pci_ep_ids,
- .probe = sandbox_pci_ep_probe,
- .ops = &sandbox_pci_ep_ops,
- .priv_auto = sizeof(struct sandbox_pci_ep_priv),
- };
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