586 lines
16 KiB
C
586 lines
16 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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 "opt_bus.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.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/bus.h>
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#include <sys/queue.h>
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#include <sys/lockmgr.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.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/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/usb/ehcireg.h>
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#include <dev/usb/ehcivar.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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/* AcerLabs/ALi */
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#define PCI_EHCI_DEVICEID_M5239 0x523910b9
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static const char *ehci_device_m5239 = "ALi M5239 USB 2.0 controller";
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/* AMD */
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#define PCI_EHCI_DEVICEID_8111 0x10227463
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static const char *ehci_device_8111 = "AMD 8111 USB 2.0 controller";
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/* ATI */
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#define PCI_EHCI_DEVICEID_SB200 0x43451002
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static const char *ehci_device_sb200 = "ATI SB200 USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_SB400 0x43731002
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static const char *ehci_device_sb400 = "ATI SB400 USB 2.0 controller";
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/* Intel */
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#define PCI_EHCI_DEVICEID_6300 0x25ad8086
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static const char *ehci_device_6300 = "Intel 6300ESB USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_ICH4 0x24cd8086
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static const char *ehci_device_ich4 = "Intel 82801DB/L/M (ICH4) USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_ICH5 0x24dd8086
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static const char *ehci_device_ich5 = "Intel 82801EB/R (ICH5) USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_ICH6 0x265c8086
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static const char *ehci_device_ich6 = "Intel 82801FB (ICH6) USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_ICH7 0x27cc8086
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static const char *ehci_device_ich7 = "Intel 82801GB/R (ICH7) USB 2.0 controller";
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/* NEC */
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#define PCI_EHCI_DEVICEID_NEC 0x00e01033
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static const char *ehci_device_nec = "NEC uPD 720100 USB 2.0 controller";
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/* NVIDIA */
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#define PCI_EHCI_DEVICEID_NF2 0x006810de
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static const char *ehci_device_nf2 = "NVIDIA nForce2 USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_NF2_400 0x008810de
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static const char *ehci_device_nf2_400 = "NVIDIA nForce2 Ultra 400 USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_NF3 0x00d810de
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static const char *ehci_device_nf3 = "NVIDIA nForce3 USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_NF3_250 0x00e810de
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static const char *ehci_device_nf3_250 = "NVIDIA nForce3 250 USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_NF4 0x005b10de
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static const char *ehci_device_nf4 = "NVIDIA nForce4 USB 2.0 controller";
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/* Philips */
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#define PCI_EHCI_DEVICEID_ISP156X 0x15621131
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static const char *ehci_device_isp156x = "Philips ISP156x USB 2.0 controller";
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#define PCI_EHCI_DEVICEID_VIA 0x31041106
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static const char *ehci_device_via = "VIA VT6202 USB 2.0 controller";
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static const char *ehci_device_generic = "EHCI (generic) USB 2.0 controller";
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#define PCI_EHCI_BASE_REG 0x10
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#ifdef USB_DEBUG
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#define EHCI_DEBUG USB_DEBUG
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#define DPRINTF(x) do { if (ehcidebug) logprintf x; } while (0)
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extern int ehcidebug;
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#else
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#define DPRINTF(x)
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#endif
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static int ehci_pci_attach(device_t self);
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static int ehci_pci_detach(device_t self);
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static int ehci_pci_shutdown(device_t self);
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static int ehci_pci_suspend(device_t self);
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static int ehci_pci_resume(device_t self);
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static void ehci_pci_givecontroller(device_t self);
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static void ehci_pci_takecontroller(device_t self);
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static int
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ehci_pci_suspend(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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err = bus_generic_suspend(self);
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if (err)
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return (err);
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ehci_power(PWR_SUSPEND, sc);
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return 0;
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}
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static int
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ehci_pci_resume(device_t self)
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{
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ehci_softc_t *sc = device_get_softc(self);
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ehci_pci_takecontroller(self);
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ehci_power(PWR_RESUME, sc);
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bus_generic_resume(self);
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return 0;
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}
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static int
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ehci_pci_shutdown(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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err = bus_generic_shutdown(self);
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if (err)
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return (err);
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ehci_shutdown(sc);
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ehci_pci_givecontroller(self);
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return 0;
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}
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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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u_int32_t device_id = pci_get_devid(self);
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switch (device_id) {
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case PCI_EHCI_DEVICEID_M5239:
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return (ehci_device_m5239);
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case PCI_EHCI_DEVICEID_8111:
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return (ehci_device_8111);
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case PCI_EHCI_DEVICEID_SB200:
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return (ehci_device_sb200);
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case PCI_EHCI_DEVICEID_SB400:
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return (ehci_device_sb400);
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case PCI_EHCI_DEVICEID_6300:
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return (ehci_device_6300);
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case PCI_EHCI_DEVICEID_ICH4:
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return (ehci_device_ich4);
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case PCI_EHCI_DEVICEID_ICH5:
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return (ehci_device_ich5);
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case PCI_EHCI_DEVICEID_ICH6:
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return (ehci_device_ich6);
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case PCI_EHCI_DEVICEID_ICH7:
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return (ehci_device_ich7);
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case PCI_EHCI_DEVICEID_NEC:
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return (ehci_device_nec);
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case PCI_EHCI_DEVICEID_NF2:
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return (ehci_device_nf2);
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case PCI_EHCI_DEVICEID_NF2_400:
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return (ehci_device_nf2_400);
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case PCI_EHCI_DEVICEID_NF3:
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return (ehci_device_nf3);
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case PCI_EHCI_DEVICEID_NF3_250:
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return (ehci_device_nf3_250);
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case PCI_EHCI_DEVICEID_NF4:
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return (ehci_device_nf4);
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case PCI_EHCI_DEVICEID_ISP156X:
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return (ehci_device_isp156x);
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case PCI_EHCI_DEVICEID_VIA:
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return (ehci_device_via);
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default:
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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_device_generic);
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}
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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 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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device_t parent;
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device_t *neighbors;
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device_t *nbus;
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struct usbd_bus *bsc;
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int err;
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int rid;
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int ncomp;
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int count, buscount;
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int slot, function;
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int res;
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int i;
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switch(pci_read_config(self, PCI_USBREV, 1) & PCI_USBREV_MASK) {
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case PCI_USBREV_PRE_1_0:
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case PCI_USBREV_1_0:
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case PCI_USBREV_1_1:
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sc->sc_bus.usbrev = USBREV_UNKNOWN;
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printf("pre-2.0 USB rev\n");
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return ENXIO;
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case PCI_USBREV_2_0:
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sc->sc_bus.usbrev = USBREV_2_0;
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break;
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default:
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sc->sc_bus.usbrev = USBREV_UNKNOWN;
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break;
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}
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pci_enable_busmaster(self);
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rid = PCI_CBMEM;
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sc->io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
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RF_ACTIVE);
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if (!sc->io_res) {
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device_printf(self, "Could not map memory\n");
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return ENXIO;
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}
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sc->iot = rman_get_bustag(sc->io_res);
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sc->ioh = rman_get_bushandle(sc->io_res);
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rid = 0;
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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->irq_res == NULL) {
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device_printf(self, "Could not allocate irq\n");
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ehci_pci_detach(self);
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return ENXIO;
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}
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sc->sc_bus.bdev = device_add_child(self, "usb", -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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ehci_pci_detach(self);
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return ENOMEM;
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}
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device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
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/* ehci_pci_match will never return NULL if ehci_pci_probe succeeded */
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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_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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err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO,
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(driver_intr_t *) ehci_intr, sc, &sc->ih);
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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->ih = NULL;
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ehci_pci_detach(self);
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return ENXIO;
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}
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/* Enable workaround for dropped interrupts as required */
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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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/*
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* Find companion controllers. According to the spec they always
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* have lower function numbers so they should be enumerated already.
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*/
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parent = device_get_parent(self);
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res = device_get_children(parent, &neighbors, &count);
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if (res != 0) {
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device_printf(self, "Error finding companion busses\n");
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ehci_pci_detach(self);
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return ENXIO;
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}
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ncomp = 0;
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slot = pci_get_slot(self);
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function = pci_get_function(self);
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for (i = 0; i < count; i++) {
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if (pci_get_slot(neighbors[i]) == slot && \
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pci_get_function(neighbors[i]) < function) {
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res = device_get_children(neighbors[i],
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&nbus, &buscount);
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if (res != 0 || buscount != 1)
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continue;
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bsc = device_get_softc(nbus[0]);
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DPRINTF(("ehci_pci_attach: companion %s\n",
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device_get_nameunit(bsc->bdev)));
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sc->sc_comps[ncomp++] = bsc;
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if (ncomp >= EHCI_COMPANION_MAX)
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break;
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}
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}
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sc->sc_ncomp = ncomp;
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/* Allocate a parent dma tag for DMA maps */
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err = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
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BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT,
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USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
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&sc->sc_bus.parent_dmatag);
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if (err) {
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device_printf(self, "Could not allocate parent DMA tag (%d)\n",
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err);
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ehci_pci_detach(self);
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return ENXIO;
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}
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/* Allocate a dma tag for transfer buffers */
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err = bus_dma_tag_create(sc->sc_bus.parent_dmatag, 1, 0,
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BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
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BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
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busdma_lock_mutex, &Giant, &sc->sc_bus.buffer_dmatag);
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if (err) {
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device_printf(self, "Could not allocate buffer DMA tag (%d)\n",
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err);
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ehci_pci_detach(self);
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return ENXIO;
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}
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ehci_pci_takecontroller(self);
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err = ehci_init(sc);
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if (!err) {
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sc->sc_flags |= EHCI_SCFLG_DONEINIT;
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err = device_probe_and_attach(sc->sc_bus.bdev);
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}
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if (err) {
|
|
device_printf(self, "USB init failed err=%d\n", err);
|
|
ehci_pci_detach(self);
|
|
return EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ehci_pci_detach(device_t self)
|
|
{
|
|
ehci_softc_t *sc = device_get_softc(self);
|
|
|
|
if (sc->sc_flags & EHCI_SCFLG_DONEINIT) {
|
|
ehci_detach(sc, 0);
|
|
sc->sc_flags &= ~EHCI_SCFLG_DONEINIT;
|
|
}
|
|
|
|
/*
|
|
* disable interrupts that might have been switched on in ehci_init
|
|
*/
|
|
if (sc->iot && sc->ioh)
|
|
bus_space_write_4(sc->iot, sc->ioh, EHCI_USBINTR, 0);
|
|
if (sc->sc_bus.parent_dmatag != NULL)
|
|
bus_dma_tag_destroy(sc->sc_bus.parent_dmatag);
|
|
if (sc->sc_bus.buffer_dmatag != NULL)
|
|
bus_dma_tag_destroy(sc->sc_bus.buffer_dmatag);
|
|
|
|
if (sc->irq_res && sc->ih) {
|
|
int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
|
|
|
|
if (err)
|
|
/* XXX or should we panic? */
|
|
device_printf(self, "Could not tear down irq, %d\n",
|
|
err);
|
|
sc->ih = NULL;
|
|
}
|
|
if (sc->sc_bus.bdev) {
|
|
device_delete_child(self, sc->sc_bus.bdev);
|
|
sc->sc_bus.bdev = NULL;
|
|
}
|
|
if (sc->irq_res) {
|
|
bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
|
|
sc->irq_res = NULL;
|
|
}
|
|
if (sc->io_res) {
|
|
bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, sc->io_res);
|
|
sc->io_res = NULL;
|
|
sc->iot = 0;
|
|
sc->ioh = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ehci_pci_takecontroller(device_t self)
|
|
{
|
|
ehci_softc_t *sc = device_get_softc(self);
|
|
u_int32_t cparams, eec, legsup;
|
|
int eecp, i;
|
|
|
|
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;
|
|
legsup = eec;
|
|
pci_write_config(self, eecp, legsup | EHCI_LEGSUP_OSOWNED, 4);
|
|
if (legsup & EHCI_LEGSUP_BIOSOWNED) {
|
|
printf("%s: waiting for BIOS to give up control\n",
|
|
device_get_nameunit(sc->sc_bus.bdev));
|
|
for (i = 0; i < 5000; i++) {
|
|
legsup = pci_read_config(self, eecp, 4);
|
|
if ((legsup & EHCI_LEGSUP_BIOSOWNED) == 0)
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (legsup & EHCI_LEGSUP_BIOSOWNED)
|
|
printf("%s: timed out waiting for BIOS\n",
|
|
device_get_nameunit(sc->sc_bus.bdev));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
ehci_pci_givecontroller(device_t self)
|
|
{
|
|
ehci_softc_t *sc = device_get_softc(self);
|
|
u_int32_t cparams, eec, legsup;
|
|
int eecp;
|
|
|
|
cparams = EREAD4(sc, EHCI_HCCPARAMS);
|
|
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;
|
|
legsup = eec;
|
|
pci_write_config(self, eecp, legsup & ~EHCI_LEGSUP_OSOWNED, 4);
|
|
}
|
|
}
|
|
|
|
static device_method_t ehci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ehci_pci_probe),
|
|
DEVMETHOD(device_attach, ehci_pci_attach),
|
|
DEVMETHOD(device_detach, ehci_pci_detach),
|
|
DEVMETHOD(device_suspend, ehci_pci_suspend),
|
|
DEVMETHOD(device_resume, ehci_pci_resume),
|
|
DEVMETHOD(device_shutdown, ehci_pci_shutdown),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
|
|
{0, 0}
|
|
};
|
|
|
|
static driver_t ehci_driver = {
|
|
"ehci",
|
|
ehci_methods,
|
|
sizeof(ehci_softc_t),
|
|
};
|
|
|
|
static devclass_t ehci_devclass;
|
|
|
|
DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0);
|
|
DRIVER_MODULE(ehci, cardbus, ehci_driver, ehci_devclass, 0, 0);
|