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https://github.com/brain-hackers/u-boot-brain
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
180 lines
3.5 KiB
C
180 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2019 Ramon Fried <ramon.fried@gmail.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <pci.h>
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#include <pci_ep.h>
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#include <asm/test.h>
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/**
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* struct sandbox_pci_ep_priv - private data for driver
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* @hdr: Stores the EP device header
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* @msix: required MSIx count;
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* @msi: required MSI count;
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*/
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struct sandbox_pci_ep_priv {
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struct pci_ep_header hdr;
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struct pci_bar bars[6];
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int msix;
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int msi;
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int irq_count;
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};
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/* Method exported for testing purposes */
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int sandbox_get_pci_ep_irq_count(struct udevice *dev)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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return priv->irq_count;
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}
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static const struct udevice_id sandbox_pci_ep_ids[] = {
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{ .compatible = "sandbox,pci_ep" },
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{ }
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};
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static int sandbox_write_header(struct udevice *dev, uint fn,
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struct pci_ep_header *hdr)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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memcpy(&priv->hdr, hdr, sizeof(*hdr));
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return 0;
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}
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static int sandbox_read_header(struct udevice *dev, uint fn,
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struct pci_ep_header *hdr)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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memcpy(hdr, &priv->hdr, sizeof(*hdr));
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return 0;
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}
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static int sandbox_set_bar(struct udevice *dev, uint fn,
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struct pci_bar *ep_bar)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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int bar_idx;
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if (fn > 0)
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return -ENODEV;
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bar_idx = ep_bar->barno;
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memcpy(&priv->bars[bar_idx], ep_bar, sizeof(*ep_bar));
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return 0;
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}
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static int sandbox_read_bar(struct udevice *dev, uint fn,
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struct pci_bar *ep_bar, enum pci_barno barno)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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memcpy(ep_bar, &priv->bars[barno], sizeof(*ep_bar));
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return 0;
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}
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static int sandbox_set_msi(struct udevice *dev, uint fn, uint interrupts)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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priv->msi = interrupts;
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return 0;
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}
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static int sandbox_get_msi(struct udevice *dev, uint fn)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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return priv->msi;
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}
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static int sandbox_set_msix(struct udevice *dev, uint fn, uint interrupts)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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priv->msix = interrupts;
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return 0;
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}
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static int sandbox_get_msix(struct udevice *dev, uint fn)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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return priv->msix;
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}
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static int sandbox_raise_irq(struct udevice *dev, uint fn,
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enum pci_ep_irq_type type, uint interrupt_num)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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if (fn > 0)
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return -ENODEV;
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priv->irq_count++;
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return 0;
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}
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static int sandbox_pci_ep_probe(struct udevice *dev)
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{
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struct sandbox_pci_ep_priv *priv = dev_get_priv(dev);
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memset(priv, 0, sizeof(*priv));
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return 0;
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}
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static struct pci_ep_ops sandbox_pci_ep_ops = {
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.write_header = sandbox_write_header,
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.read_header = sandbox_read_header,
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.set_bar = sandbox_set_bar,
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.read_bar = sandbox_read_bar,
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.set_msi = sandbox_set_msi,
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.get_msi = sandbox_get_msi,
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.set_msix = sandbox_set_msix,
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.get_msix = sandbox_get_msix,
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.raise_irq = sandbox_raise_irq,
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};
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U_BOOT_DRIVER(pci_ep_sandbox) = {
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.name = "pci_ep_sandbox",
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.id = UCLASS_PCI_EP,
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.of_match = sandbox_pci_ep_ids,
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.probe = sandbox_pci_ep_probe,
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.ops = &sandbox_pci_ep_ops,
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.priv_auto = sizeof(struct sandbox_pci_ep_priv),
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};
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