574 lines
15 KiB
C
574 lines
15 KiB
C
/*-
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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 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 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 0x00e01033:
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return ("NEC uPD 720100 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 (0);
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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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/* 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,
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"Doorbell 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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err = ehci_init(sc);
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if (!err) {
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err = device_probe_and_attach(sc->sc_bus.bdev);
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}
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if (err) {
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device_printf(self, "USB init failed err=%d\n", err);
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goto error;
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}
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return (0);
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error:
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ehci_pci_detach(self);
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return (ENXIO);
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}
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static int
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ehci_pci_detach(device_t self)
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{
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ehci_softc_t *sc = device_get_softc(self);
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device_t bdev;
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if (sc->sc_bus.bdev) {
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bdev = sc->sc_bus.bdev;
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device_detach(bdev);
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device_delete_child(self, bdev);
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}
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/* during module unload there are lots of children leftover */
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device_delete_children(self);
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pci_disable_busmaster(self);
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|
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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);
|