718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
589 lines
16 KiB
C
589 lines
16 KiB
C
/*-
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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.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@carlstedt.se) at
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* Carlstedt Research & Technology.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* 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 IN
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* 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 THE
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* POSSIBILITY OF SUCH DAMAGE.
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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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* USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller.
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*
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* The EHCI 1.0 spec can be found at
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* http://developer.intel.com/technology/usb/download/ehci-r10.pdf
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* and the USB 2.0 spec at
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* http://www.usb.org/developers/docs/usb_20.zip
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*/
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/* The low level controller code for EHCI has been split into
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* PCI probes and EHCI specific code. This was done to facilitate the
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* sharing of code between *BSD's
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*/
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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/usb_core.h>
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#include <dev/usb/usb_busdma.h>
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#include <dev/usb/usb_process.h>
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#include <dev/usb/usb_util.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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#include <dev/usb/usb_pci.h>
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#include <dev/usb/controller/ehci.h>
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#include <dev/usb/controller/ehcireg.h>
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#include "usb_if.h"
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#define PCI_EHCI_VENDORID_ACERLABS 0x10b9
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#define PCI_EHCI_VENDORID_AMD 0x1022
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#define PCI_EHCI_VENDORID_APPLE 0x106b
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#define PCI_EHCI_VENDORID_ATI 0x1002
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#define PCI_EHCI_VENDORID_CMDTECH 0x1095
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#define PCI_EHCI_VENDORID_INTEL 0x8086
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#define PCI_EHCI_VENDORID_NEC 0x1033
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#define PCI_EHCI_VENDORID_OPTI 0x1045
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#define PCI_EHCI_VENDORID_PHILIPS 0x1131
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#define PCI_EHCI_VENDORID_SIS 0x1039
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#define PCI_EHCI_VENDORID_NVIDIA 0x12D2
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#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE
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#define PCI_EHCI_VENDORID_VIA 0x1106
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static device_probe_t ehci_pci_probe;
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static device_attach_t ehci_pci_attach;
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static device_detach_t ehci_pci_detach;
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static usb_take_controller_t ehci_pci_take_controller;
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static const char *
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ehci_pci_match(device_t self)
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{
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uint32_t device_id = pci_get_devid(self);
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switch (device_id) {
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case 0x523910b9:
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return "ALi M5239 USB 2.0 controller";
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case 0x10227463:
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return "AMD 8111 USB 2.0 controller";
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case 0x20951022:
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return ("AMD CS5536 (Geode) USB 2.0 controller");
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case 0x78081022:
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return ("AMD FCH USB 2.0 controller");
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case 0x43451002:
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return "ATI SB200 USB 2.0 controller";
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case 0x43731002:
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return "ATI SB400 USB 2.0 controller";
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case 0x43961002:
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return ("AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller");
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case 0x0f348086:
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return ("Intel BayTrail USB 2.0 controller");
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case 0x1c268086:
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return ("Intel Cougar Point USB 2.0 controller");
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case 0x1c2d8086:
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return ("Intel Cougar Point USB 2.0 controller");
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case 0x1d268086:
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return ("Intel Patsburg USB 2.0 controller");
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case 0x1d2d8086:
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return ("Intel Patsburg USB 2.0 controller");
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case 0x1e268086:
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return ("Intel Panther Point USB 2.0 controller");
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case 0x1e2d8086:
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return ("Intel Panther Point USB 2.0 controller");
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case 0x1f2c8086:
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return ("Intel Avoton USB 2.0 controller");
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case 0x25ad8086:
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return "Intel 6300ESB USB 2.0 controller";
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case 0x24cd8086:
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return "Intel 82801DB/L/M (ICH4) USB 2.0 controller";
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case 0x24dd8086:
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return "Intel 82801EB/R (ICH5) USB 2.0 controller";
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case 0x265c8086:
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return "Intel 82801FB (ICH6) USB 2.0 controller";
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case 0x268c8086:
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return ("Intel 63XXESB USB 2.0 controller");
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case 0x27cc8086:
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return "Intel 82801GB/R (ICH7) USB 2.0 controller";
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case 0x28368086:
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return "Intel 82801H (ICH8) USB 2.0 controller USB2-A";
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case 0x283a8086:
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return "Intel 82801H (ICH8) USB 2.0 controller USB2-B";
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case 0x293a8086:
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return "Intel 82801I (ICH9) USB 2.0 controller";
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case 0x293c8086:
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return "Intel 82801I (ICH9) USB 2.0 controller";
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case 0x3a3a8086:
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return "Intel 82801JI (ICH10) USB 2.0 controller USB-A";
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case 0x3a3c8086:
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return "Intel 82801JI (ICH10) USB 2.0 controller USB-B";
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case 0x3b348086:
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return ("Intel PCH USB 2.0 controller USB-A");
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case 0x3b3c8086:
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return ("Intel PCH USB 2.0 controller USB-B");
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case 0x8c268086:
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return ("Intel Lynx Point USB 2.0 controller USB-A");
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case 0x8c2d8086:
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return ("Intel Lynx Point USB 2.0 controller USB-B");
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case 0x8ca68086:
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return ("Intel Wildcat Point USB 2.0 controller USB-A");
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case 0x8cad8086:
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return ("Intel Wildcat Point USB 2.0 controller USB-B");
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case 0x8d268086:
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return ("Intel Wellsburg USB 2.0 controller");
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case 0x8d2d8086:
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return ("Intel Wellsburg USB 2.0 controller");
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case 0x9c268086:
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return ("Intel Lynx Point LP USB 2.0 controller USB");
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case 0x00e01033:
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return ("NEC uPD 72010x USB 2.0 controller");
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case 0x006810de:
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return "NVIDIA nForce2 USB 2.0 controller";
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case 0x008810de:
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return "NVIDIA nForce2 Ultra 400 USB 2.0 controller";
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case 0x00d810de:
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return "NVIDIA nForce3 USB 2.0 controller";
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case 0x00e810de:
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return "NVIDIA nForce3 250 USB 2.0 controller";
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case 0x005b10de:
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return "NVIDIA nForce CK804 USB 2.0 controller";
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case 0x036d10de:
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return "NVIDIA nForce MCP55 USB 2.0 controller";
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case 0x03f210de:
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return "NVIDIA nForce MCP61 USB 2.0 controller";
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case 0x0aa610de:
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return "NVIDIA nForce MCP79 USB 2.0 controller";
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case 0x0aa910de:
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return "NVIDIA nForce MCP79 USB 2.0 controller";
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case 0x0aaa10de:
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return "NVIDIA nForce MCP79 USB 2.0 controller";
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case 0x15621131:
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return "Philips ISP156x USB 2.0 controller";
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case 0x31041106:
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return ("VIA VT6202 USB 2.0 controller");
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default:
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break;
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}
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if ((pci_get_class(self) == PCIC_SERIALBUS)
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&& (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
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&& (pci_get_progif(self) == PCI_INTERFACE_EHCI)) {
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return ("EHCI (generic) USB 2.0 controller");
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}
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return (NULL); /* dunno */
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}
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static int
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ehci_pci_probe(device_t self)
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{
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const char *desc = ehci_pci_match(self);
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if (desc) {
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device_set_desc(self, desc);
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return (BUS_PROBE_DEFAULT);
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} else {
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return (ENXIO);
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}
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}
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static void
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ehci_pci_ati_quirk(device_t self, uint8_t is_sb700)
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{
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device_t smbdev;
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uint32_t val;
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if (is_sb700) {
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/* Lookup SMBUS PCI device */
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smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385);
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if (smbdev == NULL)
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return;
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val = pci_get_revid(smbdev);
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if (val != 0x3a && val != 0x3b)
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return;
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}
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/*
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* Note: this bit is described as reserved in SB700
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* Register Reference Guide.
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*/
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val = pci_read_config(self, 0x53, 1);
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if (!(val & 0x8)) {
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val |= 0x8;
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pci_write_config(self, 0x53, val, 1);
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device_printf(self, "AMD SB600/700 quirk applied\n");
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}
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}
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static void
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ehci_pci_via_quirk(device_t self)
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{
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uint32_t val;
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if ((pci_get_device(self) == 0x3104) &&
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((pci_get_revid(self) & 0xf0) == 0x60)) {
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/* Correct schedule sleep time to 10us */
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val = pci_read_config(self, 0x4b, 1);
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if (val & 0x20)
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return;
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val |= 0x20;
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pci_write_config(self, 0x4b, val, 1);
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device_printf(self, "VIA-quirk applied\n");
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}
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}
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static int
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ehci_pci_attach(device_t self)
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{
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ehci_softc_t *sc = device_get_softc(self);
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int err;
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int rid;
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/* initialise some bus fields */
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sc->sc_bus.parent = self;
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sc->sc_bus.devices = sc->sc_devices;
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sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
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sc->sc_bus.dma_bits = 32;
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/* get all DMA memory */
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if (usb_bus_mem_alloc_all(&sc->sc_bus,
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USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
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return (ENOMEM);
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}
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pci_enable_busmaster(self);
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switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) {
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case PCI_USB_REV_PRE_1_0:
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case PCI_USB_REV_1_0:
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case PCI_USB_REV_1_1:
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/*
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* NOTE: some EHCI USB controllers have the wrong USB
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* revision number. It appears those controllers are
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* fully compliant so we just ignore this value in
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* some common cases.
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*/
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device_printf(self, "pre-2.0 USB revision (ignored)\n");
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/* fallthrough */
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case PCI_USB_REV_2_0:
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break;
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default:
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/* Quirk for Parallels Desktop 4.0 */
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device_printf(self, "USB revision is unknown. Assuming v2.0.\n");
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break;
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}
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rid = PCI_CBMEM;
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sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
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RF_ACTIVE);
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if (!sc->sc_io_res) {
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device_printf(self, "Could not map memory\n");
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goto error;
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}
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sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
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sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
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sc->sc_io_size = rman_get_size(sc->sc_io_res);
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rid = 0;
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sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
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RF_SHAREABLE | RF_ACTIVE);
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if (sc->sc_irq_res == NULL) {
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device_printf(self, "Could not allocate irq\n");
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goto error;
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}
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sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
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if (!sc->sc_bus.bdev) {
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device_printf(self, "Could not add USB device\n");
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goto error;
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}
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device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
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/*
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* ehci_pci_match will never return NULL if ehci_pci_probe
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* succeeded
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*/
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device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self));
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switch (pci_get_vendor(self)) {
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case PCI_EHCI_VENDORID_ACERLABS:
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sprintf(sc->sc_vendor, "AcerLabs");
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break;
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case PCI_EHCI_VENDORID_AMD:
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sprintf(sc->sc_vendor, "AMD");
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break;
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case PCI_EHCI_VENDORID_APPLE:
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sprintf(sc->sc_vendor, "Apple");
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break;
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case PCI_EHCI_VENDORID_ATI:
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sprintf(sc->sc_vendor, "ATI");
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break;
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case PCI_EHCI_VENDORID_CMDTECH:
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sprintf(sc->sc_vendor, "CMDTECH");
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break;
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case PCI_EHCI_VENDORID_INTEL:
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sprintf(sc->sc_vendor, "Intel");
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break;
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case PCI_EHCI_VENDORID_NEC:
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sprintf(sc->sc_vendor, "NEC");
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break;
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case PCI_EHCI_VENDORID_OPTI:
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sprintf(sc->sc_vendor, "OPTi");
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break;
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case PCI_EHCI_VENDORID_PHILIPS:
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sprintf(sc->sc_vendor, "Philips");
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break;
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case PCI_EHCI_VENDORID_SIS:
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sprintf(sc->sc_vendor, "SiS");
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break;
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case PCI_EHCI_VENDORID_NVIDIA:
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case PCI_EHCI_VENDORID_NVIDIA2:
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sprintf(sc->sc_vendor, "nVidia");
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break;
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case PCI_EHCI_VENDORID_VIA:
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sprintf(sc->sc_vendor, "VIA");
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break;
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default:
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if (bootverbose)
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device_printf(self, "(New EHCI DeviceId=0x%08x)\n",
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pci_get_devid(self));
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sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
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}
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#if (__FreeBSD_version >= 700031)
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err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
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NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
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#else
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err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
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(driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
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#endif
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if (err) {
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device_printf(self, "Could not setup irq, %d\n", err);
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sc->sc_intr_hdl = NULL;
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goto error;
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}
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ehci_pci_take_controller(self);
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/* Undocumented quirks taken from Linux */
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switch (pci_get_vendor(self)) {
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case PCI_EHCI_VENDORID_ATI:
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/* SB600 and SB700 EHCI quirk */
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switch (pci_get_device(self)) {
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case 0x4386:
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ehci_pci_ati_quirk(self, 0);
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break;
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case 0x4396:
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ehci_pci_ati_quirk(self, 1);
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break;
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default:
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break;
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}
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break;
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case PCI_EHCI_VENDORID_VIA:
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ehci_pci_via_quirk(self);
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break;
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default:
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break;
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}
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/* Dropped interrupts workaround */
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switch (pci_get_vendor(self)) {
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case PCI_EHCI_VENDORID_ATI:
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case PCI_EHCI_VENDORID_VIA:
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sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG;
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if (bootverbose)
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device_printf(self,
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"Dropped interrupts workaround enabled\n");
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break;
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default:
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break;
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}
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/* Doorbell feature workaround */
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switch (pci_get_vendor(self)) {
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case PCI_EHCI_VENDORID_NVIDIA:
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case PCI_EHCI_VENDORID_NVIDIA2:
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sc->sc_flags |= EHCI_SCFLG_IAADBUG;
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if (bootverbose)
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device_printf(self,
|
|
"Doorbell workaround enabled\n");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
err = ehci_init(sc);
|
|
if (!err) {
|
|
err = device_probe_and_attach(sc->sc_bus.bdev);
|
|
}
|
|
if (err) {
|
|
device_printf(self, "USB init failed err=%d\n", err);
|
|
goto error;
|
|
}
|
|
return (0);
|
|
|
|
error:
|
|
ehci_pci_detach(self);
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
ehci_pci_detach(device_t self)
|
|
{
|
|
ehci_softc_t *sc = device_get_softc(self);
|
|
|
|
/* during module unload there are lots of children leftover */
|
|
device_delete_children(self);
|
|
|
|
pci_disable_busmaster(self);
|
|
|
|
if (sc->sc_irq_res && sc->sc_intr_hdl) {
|
|
/*
|
|
* only call ehci_detach() after ehci_init()
|
|
*/
|
|
ehci_detach(sc);
|
|
|
|
int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
|
|
|
|
if (err)
|
|
/* XXX or should we panic? */
|
|
device_printf(self, "Could not tear down irq, %d\n",
|
|
err);
|
|
sc->sc_intr_hdl = NULL;
|
|
}
|
|
if (sc->sc_irq_res) {
|
|
bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
|
|
sc->sc_irq_res = NULL;
|
|
}
|
|
if (sc->sc_io_res) {
|
|
bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM,
|
|
sc->sc_io_res);
|
|
sc->sc_io_res = NULL;
|
|
}
|
|
usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ehci_pci_take_controller(device_t self)
|
|
{
|
|
ehci_softc_t *sc = device_get_softc(self);
|
|
uint32_t cparams;
|
|
uint32_t eec;
|
|
uint16_t to;
|
|
uint8_t eecp;
|
|
uint8_t bios_sem;
|
|
|
|
cparams = EREAD4(sc, EHCI_HCCPARAMS);
|
|
|
|
/* Synchronise with the BIOS if it owns the controller. */
|
|
for (eecp = EHCI_HCC_EECP(cparams); eecp != 0;
|
|
eecp = EHCI_EECP_NEXT(eec)) {
|
|
eec = pci_read_config(self, eecp, 4);
|
|
if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) {
|
|
continue;
|
|
}
|
|
bios_sem = pci_read_config(self, eecp +
|
|
EHCI_LEGSUP_BIOS_SEM, 1);
|
|
if (bios_sem == 0) {
|
|
continue;
|
|
}
|
|
device_printf(sc->sc_bus.bdev, "waiting for BIOS "
|
|
"to give up control\n");
|
|
pci_write_config(self, eecp +
|
|
EHCI_LEGSUP_OS_SEM, 1, 1);
|
|
to = 500;
|
|
while (1) {
|
|
bios_sem = pci_read_config(self, eecp +
|
|
EHCI_LEGSUP_BIOS_SEM, 1);
|
|
if (bios_sem == 0)
|
|
break;
|
|
|
|
if (--to == 0) {
|
|
device_printf(sc->sc_bus.bdev,
|
|
"timed out waiting for BIOS\n");
|
|
break;
|
|
}
|
|
usb_pause_mtx(NULL, hz / 100); /* wait 10ms */
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t ehci_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ehci_pci_probe),
|
|
DEVMETHOD(device_attach, ehci_pci_attach),
|
|
DEVMETHOD(device_detach, ehci_pci_detach),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(usb_take_controller, ehci_pci_take_controller),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t ehci_driver = {
|
|
.name = "ehci",
|
|
.methods = ehci_pci_methods,
|
|
.size = sizeof(struct ehci_softc),
|
|
};
|
|
|
|
static devclass_t ehci_devclass;
|
|
|
|
DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0);
|
|
MODULE_DEPEND(ehci, usb, 1, 1, 1);
|