685dc743dc
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
309 lines
7.7 KiB
C
309 lines
7.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright © 2021-2022 Bjoern A. Zeeb
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/endian.h>
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#include <sys/socket.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <dev/acpica/acpivar.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include "memac_mdio.h"
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#include "memac_mdio_if.h"
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#include "acpi_bus_if.h"
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#include "miibus_if.h"
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/* -------------------------------------------------------------------------- */
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struct memacphy_softc_acpi {
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struct memacphy_softc_common scc;
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int uid;
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uint64_t phy_channel;
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char compatible[64];
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};
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static void
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memacphy_acpi_miibus_statchg(device_t dev)
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{
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struct memacphy_softc_acpi *sc;
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sc = device_get_softc(dev);
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memacphy_miibus_statchg(&sc->scc);
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}
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static int
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memacphy_acpi_set_ni_dev(device_t dev, device_t nidev)
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{
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struct memacphy_softc_acpi *sc;
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sc = device_get_softc(dev);
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return (memacphy_set_ni_dev(&sc->scc, nidev));
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}
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static int
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memacphy_acpi_get_phy_loc(device_t dev, int *phy_loc)
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{
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struct memacphy_softc_acpi *sc;
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sc = device_get_softc(dev);
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return (memacphy_get_phy_loc(&sc->scc, phy_loc));
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}
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static int
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memacphy_acpi_probe(device_t dev)
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{
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device_set_desc(dev, "MEMAC PHY (acpi)");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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memacphy_acpi_attach(device_t dev)
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{
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struct memacphy_softc_acpi *sc;
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ACPI_HANDLE h;
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ssize_t s;
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sc = device_get_softc(dev);
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sc->scc.dev = dev;
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h = acpi_get_handle(dev);
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s = acpi_GetInteger(h, "_UID", &sc->uid);
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if (ACPI_FAILURE(s)) {
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device_printf(dev, "Cannot get '_UID' property: %zd\n", s);
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return (ENXIO);
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}
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s = device_get_property(dev, "phy-channel",
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&sc->phy_channel, sizeof(sc->phy_channel), DEVICE_PROP_UINT64);
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if (s != -1)
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sc->scc.phy = sc->phy_channel;
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else
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sc->scc.phy = -1;
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s = device_get_property(dev, "compatible",
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sc->compatible, sizeof(sc->compatible), DEVICE_PROP_ANY);
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if (bootverbose)
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device_printf(dev, "UID %#04x phy-channel %ju compatible '%s' phy %u\n",
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sc->uid, sc->phy_channel,
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sc->compatible[0] != '\0' ? sc->compatible : "", sc->scc.phy);
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if (sc->scc.phy == -1)
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return (ENXIO);
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return (0);
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}
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static device_method_t memacphy_acpi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, memacphy_acpi_probe),
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DEVMETHOD(device_attach, memacphy_acpi_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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/* MII interface */
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DEVMETHOD(miibus_readreg, memacphy_miibus_readreg),
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DEVMETHOD(miibus_writereg, memacphy_miibus_writereg),
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DEVMETHOD(miibus_statchg, memacphy_acpi_miibus_statchg),
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/* memac */
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DEVMETHOD(memac_mdio_set_ni_dev, memacphy_acpi_set_ni_dev),
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DEVMETHOD(memac_mdio_get_phy_loc, memacphy_acpi_get_phy_loc),
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DEVMETHOD_END
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};
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DEFINE_CLASS_0(memacphy_acpi, memacphy_acpi_driver, memacphy_acpi_methods,
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sizeof(struct memacphy_softc_acpi));
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EARLY_DRIVER_MODULE(memacphy_acpi, memac_mdio_acpi, memacphy_acpi_driver, 0, 0,
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BUS_PASS_SUPPORTDEV);
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DRIVER_MODULE(miibus, memacphy_acpi, miibus_driver, 0, 0);
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MODULE_DEPEND(memacphy_acpi, miibus, 1, 1, 1);
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/* -------------------------------------------------------------------------- */
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struct memac_mdio_softc_acpi {
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struct memac_mdio_softc_common scc;
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};
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static int
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memac_acpi_miibus_readreg(device_t dev, int phy, int reg)
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{
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struct memac_mdio_softc_acpi *sc;
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sc = device_get_softc(dev);
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return (memac_miibus_readreg(&sc->scc, phy, reg));
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}
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static int
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memac_acpi_miibus_writereg(device_t dev, int phy, int reg, int data)
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{
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struct memac_mdio_softc_acpi *sc;
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sc = device_get_softc(dev);
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return (memac_miibus_writereg(&sc->scc, phy, reg, data));
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}
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/* Context for walking PHY child devices. */
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struct memac_mdio_walk_ctx {
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device_t dev;
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int count;
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int countok;
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};
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static char *memac_mdio_ids[] = {
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"NXP0006",
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NULL
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};
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static int
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memac_mdio_acpi_probe(device_t dev)
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{
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int rc;
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if (acpi_disabled("fsl_memac_mdio"))
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return (ENXIO);
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rc = ACPI_ID_PROBE(device_get_parent(dev), dev, memac_mdio_ids, NULL);
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if (rc <= 0)
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device_set_desc(dev, "Freescale XGMAC MDIO Bus");
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return (rc);
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}
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static ACPI_STATUS
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memac_mdio_acpi_probe_child(ACPI_HANDLE h, device_t *dev, int level, void *arg)
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{
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struct memac_mdio_walk_ctx *ctx;
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struct acpi_device *ad;
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device_t child;
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uint32_t adr;
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ctx = (struct memac_mdio_walk_ctx *)arg;
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ctx->count++;
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if (ACPI_FAILURE(acpi_GetInteger(h, "_ADR", &adr)))
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return (AE_OK);
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/* Technically M_ACPIDEV */
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if ((ad = malloc(sizeof(*ad), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL)
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return (AE_OK);
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child = device_add_child(ctx->dev, "memacphy_acpi", -1);
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if (child == NULL) {
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free(ad, M_DEVBUF);
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return (AE_OK);
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}
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ad->ad_handle = h;
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ad->ad_cls_class = 0xffffff;
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resource_list_init(&ad->ad_rl);
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device_set_ivars(child, ad);
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*dev = child;
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ctx->countok++;
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return (AE_OK);
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}
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static int
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memac_mdio_acpi_attach(device_t dev)
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{
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struct memac_mdio_softc_acpi *sc;
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struct memac_mdio_walk_ctx ctx;
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int error;
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sc = device_get_softc(dev);
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sc->scc.dev = dev;
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error = memac_mdio_generic_attach(&sc->scc);
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if (error != 0)
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return (error);
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ctx.dev = dev;
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ctx.count = 0;
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ctx.countok = 0;
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ACPI_SCAN_CHILDREN(device_get_parent(dev), dev, 1,
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memac_mdio_acpi_probe_child, &ctx);
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if (ctx.countok > 0) {
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bus_generic_probe(dev);
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bus_generic_attach(dev);
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}
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return (0);
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}
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static int
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memac_mdio_acpi_detach(device_t dev)
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{
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struct memac_mdio_softc_acpi *sc;
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sc = device_get_softc(dev);
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return (memac_mdio_generic_detach(&sc->scc));
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}
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static device_method_t memac_mdio_acpi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, memac_mdio_acpi_probe),
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DEVMETHOD(device_attach, memac_mdio_acpi_attach),
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DEVMETHOD(device_detach, memac_mdio_acpi_detach),
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/* MII interface */
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DEVMETHOD(miibus_readreg, memac_acpi_miibus_readreg),
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DEVMETHOD(miibus_writereg, memac_acpi_miibus_writereg),
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/* .. */
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DEVMETHOD(bus_add_child, bus_generic_add_child),
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DEVMETHOD(bus_read_ivar, memac_mdio_read_ivar),
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DEVMETHOD(bus_get_property, memac_mdio_get_property),
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DEVMETHOD_END
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};
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DEFINE_CLASS_0(memac_mdio_acpi, memac_mdio_acpi_driver, memac_mdio_acpi_methods,
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sizeof(struct memac_mdio_softc_acpi));
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EARLY_DRIVER_MODULE(memac_mdio_acpi, acpi, memac_mdio_acpi_driver, 0, 0,
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BUS_PASS_SUPPORTDEV);
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DRIVER_MODULE(miibus, memac_mdio_acpi, miibus_driver, 0, 0);
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MODULE_DEPEND(memac_mdio_acpi, miibus, 1, 1, 1);
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MODULE_VERSION(memac_mdio_acpi, 1);
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