diff options
Diffstat (limited to 'sys/pci/uhci_pci.c')
| -rw-r--r-- | sys/pci/uhci_pci.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/sys/pci/uhci_pci.c b/sys/pci/uhci_pci.c new file mode 100644 index 0000000..80e170a --- /dev/null +++ b/sys/pci/uhci_pci.c @@ -0,0 +1,227 @@ +/* FreeBSD $Id: uhci_pci.c,v 1.9 1999/01/22 00:36:46 n_hibma Exp $ */ + +/* + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Lennart Augustsson (augustss@carlstedt.se) at + * Carlstedt Research & Technology. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/device.h> +#include <sys/proc.h> +#include <sys/queue.h> + +#include <pci/pcivar.h> +#include <pci/pcireg.h> + +#define PCI_CLASS_SERIALBUS 0x0c000000 +#define PCI_SUBCLASS_COMMUNICATIONS_SERIAL 0x00000000 +#define PCI_SUBCLASS_SERIALBUS_FIREWIRE 0x00000000 +#define PCI_SUBCLASS_SERIALBUS_ACCESS 0x00010000 +#define PCI_SUBCLASS_SERIALBUS_SSA 0x00020000 +#define PCI_SUBCLASS_SERIALBUS_USB 0x00030000 +#define PCI_SUBCLASS_SERIALBUS_FIBER 0x00040000 + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdivar.h> +#include <dev/usb/usb_mem.h> + +#include <dev/usb/uhcireg.h> +#include <dev/usb/uhcivar.h> + +#define PCI_INTERFACE(d) (((d)>>8)&0xff) +#define PCI_SUBCLASS(d) ((d)&PCI_SUBCLASS_MASK) +#define PCI_CLASS(d) ((d)&PCI_CLASS_MASK) + +#define PCI_VENDOR(d) ((d)&0xffff) +#define PCI_DEVICE(d) (((d)>>8)&0xffff) + +#define PCI_UHCI_VENDORID_INTEL 0x8086 +#define PCI_UHCI_VENDORID_VIA 0x1106 + +#define PCI_UHCI_DEVICEID_PIIX3 0x70208086ul +static const char *uhci_device_piix3 = "Intel 82371SB (PIIX3) USB Host Controller"; +#define PCI_UHCI_DEVICEID_PIIX4 0x71128086ul +#define PCI_UHCI_DEVICEID_PIIX4E 0x71128086ul /* no separate step */ +static const char *uhci_device_piix4 = "Intel 82371AB/EB (PIIX4) USB Host Controller"; +#define PCI_UHCI_DEVICEID_VT83C572 0x30381106ul +static const char *uhci_device_vt83c572 = "VIA 83C572 USB Host Controller"; +static const char *uhci_device_generic = "UHCI (generic) USB Controller"; + +#define PCI_UHCI_BASE_REG 0x20 + +static const char *uhci_pci_probe __P((pcici_t, pcidi_t)); +static void uhci_pci_attach __P((pcici_t, int)); + +u_long uhci_count = 0; /* global counter for nr. of devices found */ + +static struct pci_device uhci_pci_device = { + "uhci", + uhci_pci_probe, + uhci_pci_attach, + &uhci_count, + NULL +}; + +DATA_SET(pcidevice_set, uhci_pci_device); + + +static const char * +uhci_pci_probe(pcici_t config_id, pcidi_t device_id) +{ + u_int32_t class; + + if (device_id == PCI_UHCI_DEVICEID_PIIX3) { + return (uhci_device_piix3); + } else if (device_id == PCI_UHCI_DEVICEID_PIIX4) { + return (uhci_device_piix4); + } else if (device_id == PCI_UHCI_DEVICEID_VT83C572) { + return (uhci_device_vt83c572); + } else { + class = pci_conf_read(config_id, PCI_CLASS_REG); + if ( PCI_CLASS(class) == PCI_CLASS_SERIALBUS + && PCI_SUBCLASS(class) == PCI_SUBCLASS_SERIALBUS_USB + && PCI_INTERFACE(class) == PCI_INTERFACE_UHCI) { + return (uhci_device_generic); + } + } + + return NULL; /* dunno... */ +} + +static void +uhci_pci_attach(pcici_t config_id, int unit) +{ + int id; + char *typestr; + usbd_status r; + uhci_softc_t *sc = NULL; + + sc = malloc(sizeof(uhci_softc_t), M_DEVBUF, M_NOWAIT); + /* Do not free it below, intr might use the sc */ + if ( sc == NULL ) { + printf("usb%d: could not allocate memory", unit); + return; + } + memset(sc, 0, sizeof(uhci_softc_t)); + + sc->sc_iobase = pci_conf_read(config_id,PCI_UHCI_BASE_REG) & 0xffe0; + sc->unit = unit; + + if ( !pci_map_int(config_id, (pci_inthand_t *)uhci_intr, + (void *) sc, &bio_imask)) { + printf("usb%d: could not map irq\n", unit); + return; + } + +#ifndef USBVERBOSE + if (bootverbose) +#endif + { + switch(pci_conf_read(config_id, PCI_USBREV) & PCI_USBREV_MASK) { + case PCI_USBREV_PRE_1_0: + typestr = "pre 1.0"; + break; + case PCI_USBREV_1_0: + typestr = "1.0"; + break; + default: + typestr = "unknown"; + break; + } + printf("usb%d: USB version %s, interrupting at %d\n", unit, + typestr, + (int)pci_conf_read(config_id,PCI_INTERRUPT_REG) & 0xff); + } + + /* Figure out vendor for root hub descriptor. */ + id = pci_conf_read(config_id, PCI_ID_REG); + if (PCI_VENDOR(id) == PCI_UHCI_VENDORID_INTEL) + sprintf(sc->sc_vendor, "Intel"); + else if (PCI_VENDOR(id) == PCI_UHCI_VENDORID_VIA) + sprintf(sc->sc_vendor, "VIA"); + else + sprintf(sc->sc_vendor, "(0x%04x)", PCI_VENDOR(id)); + + /* We add a child to the root bus. After PCI configuration + * has completed the root bus will start to probe and + * attach all the devices attached to it, including our new + * kid. + * + * FIXME Sometime in the future the UHCI controller itself will + * become a kid of PCI device and this device add will no longer + * be necessary. + * + * See README for an elaborate description of the bus + * structure in spe. + */ + sc->sc_bus.bdev = device_add_child(root_bus, "usb", unit, sc); + if (!sc->sc_bus.bdev) { + printf("%s%d: could not add USB device to root bus\n", + device_get_name(sc->sc_bus.bdev), + device_get_unit(sc->sc_bus.bdev)); + return; + } + + switch (id) { + case PCI_UHCI_DEVICEID_PIIX3: + device_set_desc(sc->sc_bus.bdev, uhci_device_piix3); + break; + case PCI_UHCI_DEVICEID_PIIX4: + device_set_desc(sc->sc_bus.bdev, uhci_device_piix4); + break; + case PCI_UHCI_DEVICEID_VT83C572: + device_set_desc(sc->sc_bus.bdev, uhci_device_vt83c572); + break; + default: + printf("(New UHCI DeviceId=0x%08x)\n", id); + device_set_desc(sc->sc_bus.bdev, uhci_device_generic); + } + + r = uhci_init(sc); + if (r != USBD_NORMAL_COMPLETION) { + printf("%s%d: init failed, error=%d\n", + device_get_name(sc->sc_bus.bdev), + device_get_unit(sc->sc_bus.bdev), + r); + device_delete_child(root_bus, sc->sc_bus.bdev); + } + + return; +} |
