ddfc9c4c59
Now that the upper layers all go through a layer to tie into these
information functions that translates an sbuf into char * and len. The
current interface suffers issues of what to do in cases of truncation,
etc. Instead, migrate all these functions to using struct sbuf and these
issues go away. The caller is also in charge of any memory allocation
and/or expansion that's needed during this process.
Create a bus_generic_child_{pnpinfo,location} and make it default. It
just returns success. This is for those busses that have no information
for these items. Migrate the now-empty routines to using this as
appropriate.
Document these new interfaces with man pages, and oversight from before.
Reviewed by: jhb, bcr
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D29937
600 lines
15 KiB
C
600 lines
15 KiB
C
/* $FreeBSD$ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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*
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* Copyright (c) 1998 The NetBSD Foundation, Inc. All rights reserved.
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* Copyright (c) 1998 Lennart Augustsson. All rights reserved.
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* Copyright (c) 2008-2010 Hans Petter Selasky. All rights reserved.
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* Copyright (c) 2019 Takanori Watanabe.
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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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/*
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* USB spec: http://www.usb.org/developers/docs/usbspec.zip
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*/
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#ifdef USB_GLOBAL_INCLUDE_FILE
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#include USB_GLOBAL_INCLUDE_FILE
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#else
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#include <sys/stdint.h>
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#include <sys/stddef.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/systm.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/lock.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <sys/sysctl.h>
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#include <sys/sx.h>
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#include <sys/unistd.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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#include <sys/priv.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#define USB_DEBUG_VAR uhub_debug
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#include <dev/usb/usb_core.h>
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#include <dev/usb/usb_process.h>
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#include <dev/usb/usb_device.h>
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#include <dev/usb/usb_request.h>
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#include <dev/usb/usb_debug.h>
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#include <dev/usb/usb_hub.h>
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#include <dev/usb/usb_util.h>
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#include <dev/usb/usb_busdma.h>
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#include <dev/usb/usb_transfer.h>
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#include <dev/usb/usb_dynamic.h>
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#include <dev/usb/usb_controller.h>
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#include <dev/usb/usb_bus.h>
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#endif /* USB_GLOBAL_INCLUDE_FILE */
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#include <dev/usb/usb_hub_private.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <dev/acpica/acpivar.h>
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#include <sys/sbuf.h>
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#define ACPI_PLD_SIZE 20
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struct acpi_uhub_port {
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ACPI_HANDLE handle;
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#define ACPI_UPC_CONNECTABLE 0x80000000
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#define ACPI_UPC_PORTTYPE(x) ((x)&0xff)
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uint32_t upc;
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uint8_t pld[ACPI_PLD_SIZE];
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};
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struct acpi_uhub_softc {
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struct uhub_softc usc;
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uint8_t nports;
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ACPI_HANDLE ah;
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struct acpi_uhub_port *port;
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};
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static UINT32
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acpi_uhub_find_rh_cb(ACPI_HANDLE ah, UINT32 nl, void *ctx, void **status)
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{
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ACPI_DEVICE_INFO *devinfo;
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UINT32 ret;
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*status = NULL;
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devinfo = NULL;
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ret = AcpiGetObjectInfo(ah, &devinfo);
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if (ACPI_SUCCESS(ret)) {
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if ((devinfo->Valid & ACPI_VALID_ADR) &&
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(devinfo->Address == 0)) {
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ret = AE_CTRL_TERMINATE;
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*status = ah;
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}
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AcpiOsFree(devinfo);
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}
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return (ret);
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}
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static const char *
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acpi_uhub_upc_type(uint8_t type)
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{
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const char *typelist[] = {"TypeA", "MiniAB", "Express",
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"USB3-A", "USB3-B", "USB-MicroB",
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"USB3-MicroAB", "USB3-PowerB",
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"TypeC-USB2", "TypeC-Switch",
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"TypeC-nonSwitch"};
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const int last = sizeof(typelist) / sizeof(typelist[0]);
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if (type == 0xff) {
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return "Proprietary";
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}
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return (type < last) ? typelist[type] : "Unknown";
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}
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static int
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acpi_uhub_parse_upc(device_t dev, unsigned int p, ACPI_HANDLE ah, struct sysctl_oid_list *poid)
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{
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ACPI_BUFFER buf;
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struct acpi_uhub_softc *sc = device_get_softc(dev);
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struct acpi_uhub_port *port = &sc->port[p - 1];
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buf.Pointer = NULL;
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buf.Length = ACPI_ALLOCATE_BUFFER;
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if (AcpiEvaluateObject(ah, "_UPC", NULL, &buf) == AE_OK) {
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ACPI_OBJECT *obj = buf.Pointer;
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UINT64 porttypenum, conn;
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uint8_t *connectable;
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acpi_PkgInt(obj, 0, &conn);
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acpi_PkgInt(obj, 1, &porttypenum);
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connectable = conn ? "" : "non";
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port->upc = porttypenum;
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port->upc |= (conn) ? (ACPI_UPC_CONNECTABLE) : 0;
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if (usb_debug)
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device_printf(dev, "Port %u %sconnectable %s\n",
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p, connectable,
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acpi_uhub_upc_type(porttypenum));
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SYSCTL_ADD_U32(
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device_get_sysctl_ctx(dev),
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poid, OID_AUTO,
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"upc",
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CTLFLAG_RD | CTLFLAG_MPSAFE,
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SYSCTL_NULL_U32_PTR, port->upc,
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"UPC value. MSB is visible flag");
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}
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AcpiOsFree(buf.Pointer);
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return (0);
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}
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static int
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acpi_uhub_port_sysctl(SYSCTL_HANDLER_ARGS)
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{
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struct acpi_uhub_port *port = oidp->oid_arg1;
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struct sbuf sb;
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int error;
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sbuf_new_for_sysctl(&sb, NULL, 256, req);
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sbuf_printf(&sb, "Handle %s\n", acpi_name(port->handle));
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if (port->upc == 0xffffffff) {
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sbuf_printf(&sb, "\tNo information\n");
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goto end;
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}
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sbuf_printf(&sb, "\t");
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if (port->upc & ACPI_UPC_CONNECTABLE) {
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sbuf_printf(&sb, "Connectable ");
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}
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sbuf_printf(&sb, "%s port\n", acpi_uhub_upc_type(port->upc & 0xff));
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if ((port->pld[0] & 0x80) == 0) {
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sbuf_printf(&sb,
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"\tColor:#%02x%02x%02x\n",
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port->pld[1], port->pld[2],
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port->pld[3]);
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}
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sbuf_printf(&sb, "\tWidth %d mm Height %d mm\n",
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port->pld[4] | (port->pld[5] << 8),
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port->pld[6] | (port->pld[7] << 8));
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if (port->pld[8] & 1) {
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sbuf_printf(&sb, "\tVisible\n");
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}
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if (port->pld[8] & 2) {
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sbuf_printf(&sb, "\tDock\n");
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}
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if (port->pld[8] & 4) {
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sbuf_printf(&sb, "\tLid\n");
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} {
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int panelpos = (port->pld[8] >> 3) & 7;
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const char *panposstr[] = {"Top", "Bottom", "Left",
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"Right", "Front", "Back",
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"Unknown", "Invalid"};
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const char *shapestr[] = {
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"Round", "Oval", "Square", "VRect", "HRect",
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"VTrape", "HTrape", "Unknown", "Chamferd",
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"Rsvd", "Rsvd", "Rsvd", "Rsvd",
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"Rsvd", "Rsvd", "Rsvd", "Rsvd"};
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sbuf_printf(&sb, "\tPanelPosition: %s\n", panposstr[panelpos]);
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if (panelpos < 6) {
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const char *posstr[] = {"Upper", "Center",
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"Lower", "Invalid"};
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sbuf_printf(&sb, "\tVertPosition: %s\n",
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posstr[(port->pld[8] >> 6) & 3]);
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sbuf_printf(&sb, "\tHorizPosition: %s\n",
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posstr[(port->pld[9]) & 3]);
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}
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sbuf_printf(&sb, "\tShape: %s\n",
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shapestr[(port->pld[9] >> 2) & 0xf]);
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sbuf_printf(&sb, "\tGroup Orientation %s\n",
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((port->pld[9] >> 6) & 1) ? "Vertical" :
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"Horizontal");
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sbuf_printf(&sb, "\tGroupToken %x\n",
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((port->pld[9] >> 7)
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| (port->pld[10] << 1)) & 0xff);
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sbuf_printf(&sb, "\tGroupPosition %x\n",
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((port->pld[10] >> 7)
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| (port->pld[11] << 1)) & 0xff);
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sbuf_printf(&sb, "\t%s %s %s\n",
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(port->pld[11] & 0x80) ?
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"Bay" : "",
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(port->pld[12] & 1) ? "Eject" : "",
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(port->pld[12] & 2) ? "OSPM" : ""
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);
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}
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if ((port->pld[0] & 0x7f) >= 2) {
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sbuf_printf(&sb, "\tVOFF%d mm HOFF %dmm",
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port->pld[16] | (port->pld[17] << 8),
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port->pld[18] | (port->pld[19] << 8));
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}
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end:
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error = sbuf_finish(&sb);
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sbuf_delete(&sb);
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return (error);
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}
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static int
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acpi_uhub_parse_pld(device_t dev, unsigned int p, ACPI_HANDLE ah, struct sysctl_oid_list *tree)
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{
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ACPI_BUFFER buf;
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struct acpi_uhub_softc *sc = device_get_softc(dev);
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struct acpi_uhub_port *port = &sc->port[p - 1];
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buf.Pointer = NULL;
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buf.Length = ACPI_ALLOCATE_BUFFER;
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if (AcpiEvaluateObject(ah, "_PLD", NULL, &buf) == AE_OK) {
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ACPI_OBJECT *obj;
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unsigned char *resbuf;
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int len;
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obj = buf.Pointer;
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if (obj->Type == ACPI_TYPE_PACKAGE
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&& obj->Package.Elements[0].Type == ACPI_TYPE_BUFFER) {
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ACPI_OBJECT *obj1;
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obj1 = &obj->Package.Elements[0];
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len = obj1->Buffer.Length;
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resbuf = obj1->Buffer.Pointer;
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} else if (obj->Type == ACPI_TYPE_BUFFER) {
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len = obj->Buffer.Length;
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resbuf = obj->Buffer.Pointer;
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} else {
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goto skip;
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}
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len = (len < ACPI_PLD_SIZE) ? len : ACPI_PLD_SIZE;
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memcpy(port->pld, resbuf, len);
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SYSCTL_ADD_OPAQUE(
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device_get_sysctl_ctx(dev), tree, OID_AUTO,
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"pldraw", CTLFLAG_RD | CTLFLAG_MPSAFE,
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port->pld, len, "A", "Raw PLD value");
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if (usb_debug) {
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device_printf(dev, "Revision:%d\n",
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resbuf[0] & 0x7f);
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if ((resbuf[0] & 0x80) == 0) {
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device_printf(dev,
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"Color:#%02x%02x%02x\n",
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resbuf[1], resbuf[2],
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resbuf[3]);
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}
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device_printf(dev, "Width %d mm Height %d mm\n",
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resbuf[4] | (resbuf[5] << 8),
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resbuf[6] | (resbuf[7] << 8));
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if (resbuf[8] & 1) {
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device_printf(dev, "Visible\n");
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}
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if (resbuf[8] & 2) {
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device_printf(dev, "Dock\n");
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}
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if (resbuf[8] & 4) {
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device_printf(dev, "Lid\n");
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}
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device_printf(dev, "PanelPosition: %d\n",
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(resbuf[8] >> 3) & 7);
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device_printf(dev, "VertPosition: %d\n",
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(resbuf[8] >> 6) & 3);
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device_printf(dev, "HorizPosition: %d\n",
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(resbuf[9]) & 3);
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device_printf(dev, "Shape: %d\n",
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(resbuf[9] >> 2) & 0xf);
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device_printf(dev, "80: %02x, %02x, %02x\n",
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resbuf[9], resbuf[10], resbuf[11]);
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device_printf(dev, "96: %02x, %02x, %02x, %02x\n",
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resbuf[12], resbuf[13],
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resbuf[14], resbuf[15]);
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if ((resbuf[0] & 0x7f) >= 2) {
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device_printf(dev, "VOFF%d mm HOFF %dmm",
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resbuf[16] | (resbuf[17] << 8),
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resbuf[18] | (resbuf[19] << 8));
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}
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}
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skip:
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AcpiOsFree(buf.Pointer);
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}
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return (0);
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}
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static ACPI_STATUS
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acpi_uhub_find_rh(device_t dev, ACPI_HANDLE *ah)
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{
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device_t grand;
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ACPI_HANDLE gah;
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*ah = NULL;
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grand = device_get_parent(device_get_parent(dev));
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if ((gah = acpi_get_handle(grand)) == NULL)
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return (AE_ERROR);
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return (AcpiWalkNamespace(ACPI_TYPE_DEVICE, gah, 1,
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acpi_uhub_find_rh_cb, NULL, dev, ah));
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}
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static ACPI_STATUS
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acpi_usb_hub_port_probe_cb(ACPI_HANDLE ah, UINT32 lv, void *ctx, void **rv)
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{
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ACPI_DEVICE_INFO *devinfo;
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device_t dev = ctx;
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struct acpi_uhub_softc *sc = device_get_softc(dev);
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UINT32 ret;
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ret = AcpiGetObjectInfo(ah, &devinfo);
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if (ACPI_SUCCESS(ret)) {
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if ((devinfo->Valid & ACPI_VALID_ADR) &&
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(devinfo->Address > 0) &&
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(devinfo->Address <= (uint64_t)sc->nports)) {
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char buf[] = "portXXX";
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struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
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struct sysctl_oid *oid;
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struct sysctl_oid_list *tree;
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snprintf(buf, sizeof(buf), "port%ju",
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(uintmax_t)devinfo->Address);
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oid = SYSCTL_ADD_NODE(ctx,
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SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
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OID_AUTO, buf, CTLFLAG_RD | CTLFLAG_MPSAFE,
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NULL, "port nodes");
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tree = SYSCTL_CHILDREN(oid);
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sc->port[devinfo->Address - 1].handle = ah;
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sc->port[devinfo->Address - 1].upc = 0xffffffff;
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acpi_uhub_parse_upc(dev, devinfo->Address, ah, tree);
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acpi_uhub_parse_pld(dev, devinfo->Address, ah, tree);
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SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), tree,
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OID_AUTO, "info",
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CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
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&sc->port[devinfo->Address - 1], 0,
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acpi_uhub_port_sysctl, "A", "Port information");
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}
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AcpiOsFree(devinfo);
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}
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return (AE_OK);
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}
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|
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static ACPI_STATUS
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acpi_usb_hub_port_probe(device_t dev, ACPI_HANDLE ah)
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{
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return (AcpiWalkNamespace(ACPI_TYPE_DEVICE,
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ah, 1,
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acpi_usb_hub_port_probe_cb,
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NULL, dev, NULL));
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}
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|
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static int
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acpi_uhub_root_probe(device_t dev)
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{
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ACPI_STATUS status;
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ACPI_HANDLE ah;
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if (acpi_disabled("usb"))
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return (ENXIO);
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status = acpi_uhub_find_rh(dev, &ah);
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if (ACPI_SUCCESS(status) && ah != NULL &&
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uhub_probe(dev) <= 0) {
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/* success prior than non-ACPI USB HUB */
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return (BUS_PROBE_DEFAULT + 1);
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}
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return (ENXIO);
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}
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|
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static int
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acpi_uhub_probe(device_t dev)
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{
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ACPI_HANDLE ah;
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if (acpi_disabled("usb"))
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return (ENXIO);
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ah = acpi_get_handle(dev);
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if (ah == NULL)
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return (ENXIO);
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if (uhub_probe(dev) <= 0) {
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/* success prior than non-ACPI USB HUB */
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return (BUS_PROBE_DEFAULT + 1);
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}
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return (ENXIO);
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}
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static int
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acpi_uhub_attach_common(device_t dev)
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{
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struct usb_hub *uh;
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struct acpi_uhub_softc *sc = device_get_softc(dev);
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|
ACPI_STATUS status;
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int ret = ENXIO;
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uh = sc->usc.sc_udev->hub;
|
|
sc->nports = uh->nports;
|
|
sc->port = malloc(sizeof(struct acpi_uhub_port) * uh->nports,
|
|
M_USBDEV, M_WAITOK | M_ZERO);
|
|
status = acpi_usb_hub_port_probe(dev, sc->ah);
|
|
|
|
if (ACPI_SUCCESS(status)){
|
|
ret = 0;
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
acpi_uhub_detach(device_t dev)
|
|
{
|
|
struct acpi_uhub_softc *sc = device_get_softc(dev);
|
|
|
|
free(sc->port, M_USBDEV);
|
|
|
|
return (uhub_detach(dev));
|
|
}
|
|
|
|
static int
|
|
acpi_uhub_root_attach(device_t dev)
|
|
{
|
|
int ret;
|
|
struct acpi_uhub_softc *sc = device_get_softc(dev);
|
|
|
|
if (ACPI_FAILURE(acpi_uhub_find_rh(dev, &sc->ah)) ||
|
|
(sc->ah == NULL)) {
|
|
return (ENXIO);
|
|
}
|
|
if ((ret = uhub_attach(dev)) != 0) {
|
|
return (ret);
|
|
}
|
|
|
|
if ((ret = acpi_uhub_attach_common(dev)) != 0) {
|
|
acpi_uhub_detach(dev);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
acpi_uhub_attach(device_t dev)
|
|
{
|
|
int ret;
|
|
struct acpi_uhub_softc *sc = device_get_softc(dev);
|
|
|
|
sc->ah = acpi_get_handle(dev);
|
|
|
|
if (sc->ah == NULL) {
|
|
return (ENXIO);
|
|
}
|
|
if ((ret = uhub_attach(dev)) != 0) {
|
|
return (ret);
|
|
}
|
|
|
|
if ((ret = acpi_uhub_attach_common(dev)) != 0) {
|
|
acpi_uhub_detach(dev);
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
acpi_uhub_read_ivar(device_t dev, device_t child, int idx, uintptr_t *res)
|
|
{
|
|
struct hub_result hres;
|
|
struct acpi_uhub_softc *sc = device_get_softc(dev);
|
|
ACPI_HANDLE ah;
|
|
|
|
mtx_lock(&Giant);
|
|
uhub_find_iface_index(sc->usc.sc_udev->hub, child, &hres);
|
|
mtx_unlock(&Giant);
|
|
|
|
if ((idx == ACPI_IVAR_HANDLE) &&
|
|
(hres.portno > 0) &&
|
|
(hres.portno <= sc->nports) &&
|
|
(ah = sc->port[hres.portno - 1].handle)) {
|
|
*res = (uintptr_t)ah;
|
|
return (0);
|
|
}
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
acpi_uhub_child_location(device_t parent, device_t child, struct sbuf *sb)
|
|
{
|
|
ACPI_HANDLE ah;
|
|
|
|
uhub_child_location(parent, child, sb);
|
|
|
|
ah = acpi_get_handle(child);
|
|
if (ah != NULL)
|
|
sbuf_printf(sb, " handle=%s", acpi_name(ah));
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t acpi_uhub_methods[] = {
|
|
DEVMETHOD(device_probe, acpi_uhub_probe),
|
|
DEVMETHOD(device_attach, acpi_uhub_attach),
|
|
DEVMETHOD(device_detach, acpi_uhub_detach),
|
|
DEVMETHOD(bus_child_location, acpi_uhub_child_location),
|
|
DEVMETHOD(bus_read_ivar, acpi_uhub_read_ivar),
|
|
DEVMETHOD_END
|
|
|
|
};
|
|
|
|
static device_method_t acpi_uhub_root_methods[] = {
|
|
DEVMETHOD(device_probe, acpi_uhub_root_probe),
|
|
DEVMETHOD(device_attach, acpi_uhub_root_attach),
|
|
DEVMETHOD(device_detach, acpi_uhub_detach),
|
|
DEVMETHOD(bus_read_ivar, acpi_uhub_read_ivar),
|
|
DEVMETHOD(bus_child_location, acpi_uhub_child_location),
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static devclass_t uhub_devclass;
|
|
extern driver_t uhub_driver;
|
|
static kobj_class_t uhub_baseclasses[] = {&uhub_driver, NULL};
|
|
|
|
static driver_t acpi_uhub_driver = {
|
|
.name = "uhub",
|
|
.methods = acpi_uhub_methods,
|
|
.size = sizeof(struct acpi_uhub_softc),
|
|
.baseclasses = uhub_baseclasses,
|
|
};
|
|
|
|
static driver_t acpi_uhub_root_driver = {
|
|
.name = "uhub",
|
|
.methods = acpi_uhub_root_methods,
|
|
.size = sizeof(struct acpi_uhub_softc),
|
|
.baseclasses = uhub_baseclasses,
|
|
};
|
|
|
|
DRIVER_MODULE(uacpi, uhub, acpi_uhub_driver, uhub_devclass, 0, 0);
|
|
DRIVER_MODULE(uacpi, usbus, acpi_uhub_root_driver, uhub_devclass, 0, 0);
|
|
|
|
MODULE_DEPEND(uacpi, acpi, 1, 1, 1);
|
|
MODULE_DEPEND(uacpi, usb, 1, 1, 1);
|
|
|
|
MODULE_VERSION(uacpi, 1);
|