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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>
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2019
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* Alex Marginean, NXP
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*/
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#include <dm.h>
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#include <errno.h>
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#include <miiphy.h>
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/* macros copied over from mdio_sandbox.c */
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#define SANDBOX_PHY_ADDR 5
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#define SANDBOX_PHY_REG_CNT 2
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struct mdio_mux_sandbox_priv {
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int enabled;
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int sel;
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};
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static int mdio_mux_sandbox_mark_selection(struct udevice *dev, int sel)
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{
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struct udevice *mdio;
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struct mdio_ops *ops;
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int err;
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/*
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* find the sandbox parent mdio and write a register on the PHY there
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* so the mux test can verify selection.
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*/
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err = uclass_get_device_by_name(UCLASS_MDIO, "mdio-test", &mdio);
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if (err)
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return err;
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ops = mdio_get_ops(mdio);
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return ops->write(mdio, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
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SANDBOX_PHY_REG_CNT - 1, (u16)sel);
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}
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static int mdio_mux_sandbox_select(struct udevice *dev, int cur, int sel)
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{
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struct mdio_mux_sandbox_priv *priv = dev_get_priv(dev);
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if (!priv->enabled)
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return -ENODEV;
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if (cur != priv->sel)
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return -EINVAL;
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priv->sel = sel;
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mdio_mux_sandbox_mark_selection(dev, priv->sel);
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return 0;
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}
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static int mdio_mux_sandbox_deselect(struct udevice *dev, int sel)
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{
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struct mdio_mux_sandbox_priv *priv = dev_get_priv(dev);
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if (!priv->enabled)
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return -ENODEV;
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if (sel != priv->sel)
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return -EINVAL;
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priv->sel = -1;
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mdio_mux_sandbox_mark_selection(dev, priv->sel);
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return 0;
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}
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static const struct mdio_mux_ops mdio_mux_sandbox_ops = {
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.select = mdio_mux_sandbox_select,
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.deselect = mdio_mux_sandbox_deselect,
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};
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static int mdio_mux_sandbox_probe(struct udevice *dev)
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{
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struct mdio_mux_sandbox_priv *priv = dev_get_priv(dev);
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priv->enabled = 1;
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priv->sel = -1;
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return 0;
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}
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static const struct udevice_id mdio_mux_sandbox_ids[] = {
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{ .compatible = "sandbox,mdio-mux" },
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{ }
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};
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U_BOOT_DRIVER(mdio_mux_sandbox) = {
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.name = "mdio_mux_sandbox",
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.id = UCLASS_MDIO_MUX,
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.of_match = mdio_mux_sandbox_ids,
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.probe = mdio_mux_sandbox_probe,
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.ops = &mdio_mux_sandbox_ops,
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.priv_auto = sizeof(struct mdio_mux_sandbox_priv),
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};
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