240c5e5159
To facilitate use by SoC implementors working with bhnd-inheriting fdt/nexus drivers: * Splits bhnd_bus method implementations into generic bus implementations (bhnd_bus_generic) and generic bhnd(4) driver implementations (bhnd_generic) * Simplifies bhnd resource handling, allowing bhnd bus implementations to support bhnd resource activation by implementing the standard BUS_* resource APIs and BHND_BUS_ACTIVATE_RESOURCE(). Submitted by: Landon Fuller <landonf@landonf.org> Differential Revision: https://reviews.freebsd.org/D5758
697 lines
19 KiB
C
697 lines
19 KiB
C
/*-
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* Copyright (c) 2015 Landon Fuller <landon@landonf.org>
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* All rights reserved.
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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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Broadcom Home Networking Division (HND) Bus Driver.
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*
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* The Broadcom HND family of devices consists of both SoCs and host-connected
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* networking chipsets containing a common family of Broadcom IP cores,
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* including an integrated MIPS and/or ARM cores.
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*
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* HND devices expose a nearly identical interface whether accessible over a
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* native SoC interconnect, or when connected via a host interface such as
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* PCIe. As a result, the majority of hardware support code should be re-usable
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* across host drivers for HND networking chipsets, as well as FreeBSD support
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* for Broadcom MIPS/ARM HND SoCs.
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*
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* Earlier HND models used the siba(4) on-chip interconnect, while later models
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* use bcma(4); the programming model is almost entirely independent
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* of the actual underlying interconect.
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*/
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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/module.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include "bhnd.h"
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#include "bhndvar.h"
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#include "bhnd_nvram_if.h"
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MALLOC_DEFINE(M_BHND, "bhnd", "bhnd bus data structures");
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/**
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* bhnd_generic_probe_nomatch() reporting configuration.
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*/
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static const struct bhnd_nomatch {
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uint16_t vendor; /**< core designer */
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uint16_t device; /**< core id */
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bool if_verbose; /**< print when bootverbose is set. */
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} bhnd_nomatch_table[] = {
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{ BHND_MFGID_ARM, BHND_COREID_OOB_ROUTER, true },
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{ BHND_MFGID_ARM, BHND_COREID_EROM, true },
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{ BHND_MFGID_ARM, BHND_COREID_PL301, true },
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{ BHND_MFGID_ARM, BHND_COREID_APB_BRIDGE, true },
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{ BHND_MFGID_ARM, BHND_COREID_AXI_UNMAPPED, false },
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{ BHND_MFGID_INVALID, BHND_COREID_INVALID, false }
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};
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static device_t find_nvram_child(device_t dev);
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static int compare_ascending_probe_order(const void *lhs,
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const void *rhs);
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static int compare_descending_probe_order(const void *lhs,
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const void *rhs);
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/**
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* Default bhnd(4) bus driver implementation of DEVICE_ATTACH().
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*
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* This implementation calls device_probe_and_attach() for each of the device's
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* children, in bhnd probe order.
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*/
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int
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bhnd_generic_attach(device_t dev)
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{
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device_t *devs;
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int ndevs;
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int error;
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if (device_is_attached(dev))
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return (EBUSY);
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if ((error = device_get_children(dev, &devs, &ndevs)))
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return (error);
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qsort(devs, ndevs, sizeof(*devs), compare_ascending_probe_order);
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for (int i = 0; i < ndevs; i++) {
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device_t child = devs[i];
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device_probe_and_attach(child);
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}
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free(devs, M_TEMP);
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return (0);
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}
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/**
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* Default bhnd(4) bus driver implementation of DEVICE_DETACH().
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*
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* This implementation calls device_detach() for each of the the device's
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* children, in reverse bhnd probe order, terminating if any call to
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* device_detach() fails.
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*/
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int
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bhnd_generic_detach(device_t dev)
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{
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device_t *devs;
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int ndevs;
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int error;
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if (!device_is_attached(dev))
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return (EBUSY);
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if ((error = device_get_children(dev, &devs, &ndevs)))
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return (error);
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/* Detach in the reverse of attach order */
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qsort(devs, ndevs, sizeof(*devs), compare_descending_probe_order);
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for (int i = 0; i < ndevs; i++) {
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device_t child = devs[i];
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/* Terminate on first error */
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if ((error = device_detach(child)))
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goto cleanup;
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}
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cleanup:
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free(devs, M_TEMP);
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return (error);
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}
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/**
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* Default bhnd(4) bus driver implementation of DEVICE_SHUTDOWN().
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*
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* This implementation calls device_shutdown() for each of the device's
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* children, in reverse bhnd probe order, terminating if any call to
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* device_shutdown() fails.
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*/
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int
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bhnd_generic_shutdown(device_t dev)
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{
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device_t *devs;
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int ndevs;
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int error;
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if (!device_is_attached(dev))
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return (EBUSY);
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if ((error = device_get_children(dev, &devs, &ndevs)))
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return (error);
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/* Shutdown in the reverse of attach order */
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qsort(devs, ndevs, sizeof(*devs), compare_descending_probe_order);
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for (int i = 0; i < ndevs; i++) {
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device_t child = devs[i];
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/* Terminate on first error */
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if ((error = device_shutdown(child)))
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goto cleanup;
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}
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cleanup:
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free(devs, M_TEMP);
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return (error);
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}
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/**
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* Default bhnd(4) bus driver implementation of DEVICE_RESUME().
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*
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* This implementation calls BUS_RESUME_CHILD() for each of the device's
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* children in bhnd probe order, terminating if any call to BUS_RESUME_CHILD()
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* fails.
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*/
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int
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bhnd_generic_resume(device_t dev)
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{
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device_t *devs;
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int ndevs;
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int error;
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if (!device_is_attached(dev))
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return (EBUSY);
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if ((error = device_get_children(dev, &devs, &ndevs)))
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return (error);
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qsort(devs, ndevs, sizeof(*devs), compare_ascending_probe_order);
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for (int i = 0; i < ndevs; i++) {
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device_t child = devs[i];
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/* Terminate on first error */
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if ((error = BUS_RESUME_CHILD(device_get_parent(child), child)))
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goto cleanup;
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}
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cleanup:
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free(devs, M_TEMP);
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return (error);
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}
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/**
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* Default bhnd(4) bus driver implementation of DEVICE_SUSPEND().
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*
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* This implementation calls BUS_SUSPEND_CHILD() for each of the device's
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* children in reverse bhnd probe order. If any call to BUS_SUSPEND_CHILD()
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* fails, the suspend operation is terminated and any devices that were
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* suspended are resumed immediately by calling their BUS_RESUME_CHILD()
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* methods.
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*/
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int
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bhnd_generic_suspend(device_t dev)
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{
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device_t *devs;
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int ndevs;
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int error;
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if (!device_is_attached(dev))
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return (EBUSY);
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if ((error = device_get_children(dev, &devs, &ndevs)))
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return (error);
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/* Suspend in the reverse of attach order */
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qsort(devs, ndevs, sizeof(*devs), compare_descending_probe_order);
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for (int i = 0; i < ndevs; i++) {
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device_t child = devs[i];
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error = BUS_SUSPEND_CHILD(device_get_parent(child), child);
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/* On error, resume suspended devices and then terminate */
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if (error) {
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for (int j = 0; j < i; j++) {
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BUS_RESUME_CHILD(device_get_parent(devs[j]),
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devs[j]);
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}
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goto cleanup;
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}
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}
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cleanup:
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free(devs, M_TEMP);
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return (error);
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}
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/*
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* Ascending comparison of bhnd device's probe order.
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*/
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static int
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compare_ascending_probe_order(const void *lhs, const void *rhs)
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{
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device_t ldev, rdev;
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int lorder, rorder;
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ldev = (*(const device_t *) lhs);
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rdev = (*(const device_t *) rhs);
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lorder = BHND_BUS_GET_PROBE_ORDER(device_get_parent(ldev), ldev);
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rorder = BHND_BUS_GET_PROBE_ORDER(device_get_parent(rdev), rdev);
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if (lorder < rorder) {
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return (-1);
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} else if (lorder > rorder) {
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return (1);
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} else {
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return (0);
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}
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}
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/*
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* Descending comparison of bhnd device's probe order.
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*/
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static int
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compare_descending_probe_order(const void *lhs, const void *rhs)
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{
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return (compare_ascending_probe_order(rhs, lhs));
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}
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/**
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* Default bhnd(4) bus driver implementation of BHND_BUS_GET_PROBE_ORDER().
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*
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* This implementation determines probe ordering based on the device's class
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* and other properties, including whether the device is serving as a host
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* bridge.
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*/
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int
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bhnd_generic_get_probe_order(device_t dev, device_t child)
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{
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switch (bhnd_get_class(child)) {
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case BHND_DEVCLASS_CC:
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return (BHND_PROBE_BUS + BHND_PROBE_ORDER_FIRST);
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case BHND_DEVCLASS_CC_B:
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/* fall through */
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case BHND_DEVCLASS_PMU:
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return (BHND_PROBE_BUS + BHND_PROBE_ORDER_EARLY);
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case BHND_DEVCLASS_SOC_ROUTER:
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return (BHND_PROBE_BUS + BHND_PROBE_ORDER_LATE);
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case BHND_DEVCLASS_SOC_BRIDGE:
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return (BHND_PROBE_BUS + BHND_PROBE_ORDER_LAST);
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case BHND_DEVCLASS_CPU:
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return (BHND_PROBE_CPU + BHND_PROBE_ORDER_FIRST);
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case BHND_DEVCLASS_RAM:
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/* fall through */
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case BHND_DEVCLASS_MEMC:
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return (BHND_PROBE_CPU + BHND_PROBE_ORDER_EARLY);
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case BHND_DEVCLASS_NVRAM:
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return (BHND_PROBE_RESOURCE + BHND_PROBE_ORDER_EARLY);
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case BHND_DEVCLASS_PCI:
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case BHND_DEVCLASS_PCIE:
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case BHND_DEVCLASS_PCCARD:
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case BHND_DEVCLASS_ENET:
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case BHND_DEVCLASS_ENET_MAC:
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case BHND_DEVCLASS_ENET_PHY:
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case BHND_DEVCLASS_WLAN:
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case BHND_DEVCLASS_WLAN_MAC:
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case BHND_DEVCLASS_WLAN_PHY:
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case BHND_DEVCLASS_EROM:
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case BHND_DEVCLASS_OTHER:
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case BHND_DEVCLASS_INVALID:
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if (bhnd_is_hostb_device(child))
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return (BHND_PROBE_ROOT + BHND_PROBE_ORDER_EARLY);
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return (BHND_PROBE_DEFAULT);
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}
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}
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/**
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* Default bhnd(4) bus driver implementation of BHND_BUS_IS_REGION_VALID().
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*
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* This implementation assumes that port and region numbers are 0-indexed and
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* are allocated non-sparsely, using BHND_BUS_GET_PORT_COUNT() and
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* BHND_BUS_GET_REGION_COUNT() to determine if @p port and @p region fall
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* within the defined range.
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*/
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static bool
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bhnd_generic_is_region_valid(device_t dev, device_t child,
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bhnd_port_type type, u_int port, u_int region)
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{
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if (port >= bhnd_get_port_count(child, type))
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return (false);
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if (region >= bhnd_get_region_count(child, type, port))
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return (false);
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return (true);
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}
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/**
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* Find an NVRAM child device on @p dev, if any.
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*
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* @retval device_t An NVRAM device.
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* @retval NULL If no NVRAM device is found.
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*/
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static device_t
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find_nvram_child(device_t dev)
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{
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device_t chipc, nvram;
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/* Look for a directly-attached NVRAM child */
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nvram = device_find_child(dev, devclass_get_name(bhnd_nvram_devclass),
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-1);
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if (nvram == NULL)
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return (NULL);
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/* Further checks require a bhnd(4) bus */
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if (device_get_devclass(dev) != bhnd_devclass)
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return (NULL);
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/* Look for a ChipCommon-attached OTP device */
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if ((chipc = bhnd_find_child(dev, BHND_DEVCLASS_CC, -1)) != NULL) {
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/* Recursively search the ChipCommon device */
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if ((nvram = find_nvram_child(chipc)) != NULL)
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return (nvram);
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}
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/* Not found */
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return (NULL);
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}
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/**
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* Default bhnd(4) bus driver implementation of BHND_BUS_READ_NVRAM_VAR().
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*
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* This implementation searches @p dev for a valid NVRAM device. If no NVRAM
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* child device is found on @p dev, the request is delegated to the
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* BHND_BUS_READ_NVRAM_VAR() method on the parent
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* of @p dev.
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*/
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static int
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bhnd_generic_read_nvram_var(device_t dev, device_t child, const char *name,
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void *buf, size_t *size)
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{
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device_t nvram;
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/* Try to find an NVRAM device applicable to @p child */
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if ((nvram = find_nvram_child(dev)) == NULL)
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return (BHND_BUS_READ_NVRAM_VAR(device_get_parent(dev), child,
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name, buf, size));
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return BHND_NVRAM_GETVAR(nvram, name, buf, size);
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}
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/**
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* Default bhnd(4) bus driver implementation of BUS_PRINT_CHILD().
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*
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* This implementation requests the device's struct resource_list via
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* BUS_GET_RESOURCE_LIST.
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*/
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int
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bhnd_generic_print_child(device_t dev, device_t child)
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{
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struct resource_list *rl;
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int retval = 0;
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retval += bus_print_child_header(dev, child);
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rl = BUS_GET_RESOURCE_LIST(dev, child);
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if (rl != NULL) {
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retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY,
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"%#jx");
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}
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retval += printf(" at core %u", bhnd_get_core_index(child));
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retval += bus_print_child_domain(dev, child);
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retval += bus_print_child_footer(dev, child);
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return (retval);
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}
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/**
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* Default bhnd(4) bus driver implementation of BUS_PROBE_NOMATCH().
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*
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* This implementation requests the device's struct resource_list via
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* BUS_GET_RESOURCE_LIST.
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*/
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void
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bhnd_generic_probe_nomatch(device_t dev, device_t child)
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{
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struct resource_list *rl;
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const struct bhnd_nomatch *nm;
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bool report;
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/* Fetch reporting configuration for this device */
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report = true;
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for (nm = bhnd_nomatch_table; nm->device != BHND_COREID_INVALID; nm++) {
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if (nm->vendor != bhnd_get_vendor(child))
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continue;
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if (nm->device != bhnd_get_device(child))
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continue;
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report = false;
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if (bootverbose && nm->if_verbose)
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report = true;
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break;
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}
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if (!report)
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return;
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/* Print the non-matched device info */
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device_printf(dev, "<%s %s>", bhnd_get_vendor_name(child),
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bhnd_get_device_name(child));
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rl = BUS_GET_RESOURCE_LIST(dev, child);
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if (rl != NULL)
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resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx");
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printf(" at core %u (no driver attached)\n",
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bhnd_get_core_index(child));
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}
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/**
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* Default implementation of BUS_CHILD_PNPINFO_STR().
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*/
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static int
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bhnd_child_pnpinfo_str(device_t dev, device_t child, char *buf,
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size_t buflen)
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{
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if (device_get_parent(child) != dev) {
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return (BUS_CHILD_PNPINFO_STR(device_get_parent(dev), child,
|
|
buf, buflen));
|
|
}
|
|
|
|
snprintf(buf, buflen, "vendor=0x%hx device=0x%hx rev=0x%hhx",
|
|
bhnd_get_vendor(child), bhnd_get_device(child),
|
|
bhnd_get_hwrev(child));
|
|
|
|
return (0);
|
|
}
|
|
|
|
/**
|
|
* Default implementation of BUS_CHILD_LOCATION_STR().
|
|
*/
|
|
static int
|
|
bhnd_child_location_str(device_t dev, device_t child, char *buf,
|
|
size_t buflen)
|
|
{
|
|
bhnd_addr_t addr;
|
|
bhnd_size_t size;
|
|
|
|
if (device_get_parent(child) != dev) {
|
|
return (BUS_CHILD_LOCATION_STR(device_get_parent(dev), child,
|
|
buf, buflen));
|
|
}
|
|
|
|
|
|
if (bhnd_get_region_addr(child, BHND_PORT_DEVICE, 0, 0, &addr, &size)) {
|
|
/* No device default port/region */
|
|
if (buflen > 0)
|
|
*buf = '\0';
|
|
return (0);
|
|
}
|
|
|
|
snprintf(buf, buflen, "port0.0=0x%llx", (unsigned long long) addr);
|
|
return (0);
|
|
}
|
|
|
|
/**
|
|
* Helper function for implementing BUS_SUSPEND_CHILD().
|
|
*
|
|
* TODO: Power management
|
|
*
|
|
* If @p child is not a direct child of @p dev, suspension is delegated to
|
|
* the @p dev parent.
|
|
*/
|
|
int
|
|
bhnd_generic_suspend_child(device_t dev, device_t child)
|
|
{
|
|
if (device_get_parent(child) != dev)
|
|
BUS_SUSPEND_CHILD(device_get_parent(dev), child);
|
|
|
|
return bus_generic_suspend_child(dev, child);
|
|
}
|
|
|
|
/**
|
|
* Helper function for implementing BUS_RESUME_CHILD().
|
|
*
|
|
* TODO: Power management
|
|
*
|
|
* If @p child is not a direct child of @p dev, suspension is delegated to
|
|
* the @p dev parent.
|
|
*/
|
|
int
|
|
bhnd_generic_resume_child(device_t dev, device_t child)
|
|
{
|
|
if (device_get_parent(child) != dev)
|
|
BUS_RESUME_CHILD(device_get_parent(dev), child);
|
|
|
|
return bus_generic_resume_child(dev, child);
|
|
}
|
|
|
|
/*
|
|
* Delegate all indirect I/O to the parent device. When inherited by
|
|
* non-bridged bus implementations, resources will never be marked as
|
|
* indirect, and these methods should never be called.
|
|
*/
|
|
|
|
static uint8_t
|
|
bhnd_read_1(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset)
|
|
{
|
|
return (BHND_BUS_READ_1(device_get_parent(dev), child, r, offset));
|
|
}
|
|
|
|
static uint16_t
|
|
bhnd_read_2(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset)
|
|
{
|
|
return (BHND_BUS_READ_2(device_get_parent(dev), child, r, offset));
|
|
}
|
|
|
|
static uint32_t
|
|
bhnd_read_4(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset)
|
|
{
|
|
return (BHND_BUS_READ_4(device_get_parent(dev), child, r, offset));
|
|
}
|
|
|
|
static void
|
|
bhnd_write_1(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset, uint8_t value)
|
|
{
|
|
BHND_BUS_WRITE_1(device_get_parent(dev), child, r, offset, value);
|
|
}
|
|
|
|
static void
|
|
bhnd_write_2(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset, uint16_t value)
|
|
{
|
|
BHND_BUS_WRITE_2(device_get_parent(dev), child, r, offset, value);
|
|
}
|
|
|
|
static void
|
|
bhnd_write_4(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset, uint32_t value)
|
|
{
|
|
BHND_BUS_WRITE_4(device_get_parent(dev), child, r, offset, value);
|
|
}
|
|
|
|
static void
|
|
bhnd_barrier(device_t dev, device_t child, struct bhnd_resource *r,
|
|
bus_size_t offset, bus_size_t length, int flags)
|
|
{
|
|
BHND_BUS_BARRIER(device_get_parent(dev), child, r, offset, length,
|
|
flags);
|
|
}
|
|
|
|
static device_method_t bhnd_methods[] = {
|
|
/* Device interface */ \
|
|
DEVMETHOD(device_attach, bhnd_generic_attach),
|
|
DEVMETHOD(device_detach, bhnd_generic_detach),
|
|
DEVMETHOD(device_shutdown, bhnd_generic_shutdown),
|
|
DEVMETHOD(device_suspend, bhnd_generic_suspend),
|
|
DEVMETHOD(device_resume, bhnd_generic_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_probe_nomatch, bhnd_generic_probe_nomatch),
|
|
DEVMETHOD(bus_print_child, bhnd_generic_print_child),
|
|
DEVMETHOD(bus_child_pnpinfo_str, bhnd_child_pnpinfo_str),
|
|
DEVMETHOD(bus_child_location_str, bhnd_child_location_str),
|
|
|
|
DEVMETHOD(bus_suspend_child, bhnd_generic_suspend_child),
|
|
DEVMETHOD(bus_resume_child, bhnd_generic_resume_child),
|
|
|
|
DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
|
|
DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
|
|
DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource),
|
|
DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource),
|
|
DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
|
|
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
DEVMETHOD(bus_config_intr, bus_generic_config_intr),
|
|
DEVMETHOD(bus_bind_intr, bus_generic_bind_intr),
|
|
DEVMETHOD(bus_describe_intr, bus_generic_describe_intr),
|
|
|
|
DEVMETHOD(bus_get_dma_tag, bus_generic_get_dma_tag),
|
|
|
|
/* BHND interface */
|
|
DEVMETHOD(bhnd_bus_get_chipid, bhnd_bus_generic_get_chipid),
|
|
DEVMETHOD(bhnd_bus_get_probe_order, bhnd_generic_get_probe_order),
|
|
DEVMETHOD(bhnd_bus_is_region_valid, bhnd_generic_is_region_valid),
|
|
DEVMETHOD(bhnd_bus_is_hostb_device, bhnd_bus_generic_is_hostb_device),
|
|
DEVMETHOD(bhnd_bus_is_hw_disabled, bhnd_bus_generic_is_hw_disabled),
|
|
DEVMETHOD(bhnd_bus_read_nvram_var, bhnd_generic_read_nvram_var),
|
|
DEVMETHOD(bhnd_bus_read_1, bhnd_read_1),
|
|
DEVMETHOD(bhnd_bus_read_2, bhnd_read_2),
|
|
DEVMETHOD(bhnd_bus_read_4, bhnd_read_4),
|
|
DEVMETHOD(bhnd_bus_write_1, bhnd_write_1),
|
|
DEVMETHOD(bhnd_bus_write_2, bhnd_write_2),
|
|
DEVMETHOD(bhnd_bus_write_4, bhnd_write_4),
|
|
DEVMETHOD(bhnd_bus_barrier, bhnd_barrier),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
devclass_t bhnd_devclass; /**< bhnd bus. */
|
|
devclass_t bhnd_hostb_devclass; /**< bhnd bus host bridge. */
|
|
devclass_t bhnd_nvram_devclass; /**< bhnd NVRAM device */
|
|
|
|
DEFINE_CLASS_0(bhnd, bhnd_driver, bhnd_methods, sizeof(struct bhnd_softc));
|
|
MODULE_VERSION(bhnd, 1);
|