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author | n_hibma <n_hibma@FreeBSD.org> | 1998-11-26 23:13:13 +0000 |
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committer | n_hibma <n_hibma@FreeBSD.org> | 1998-11-26 23:13:13 +0000 |
commit | 1f1ab4819c23e37e12cd77a9f862f0b56a026bd6 (patch) | |
tree | 34b8718ca7c243ba6fca181b98eb980de3d02aca /sys/dev/pci | |
parent | cb434691d915a69b39259cd29b94ec59672a7ca3 (diff) | |
download | FreeBSD-src-1f1ab4819c23e37e12cd77a9f862f0b56a026bd6.zip FreeBSD-src-1f1ab4819c23e37e12cd77a9f862f0b56a026bd6.tar.gz |
Initial commit of ported NetBSD USB stack
Diffstat (limited to 'sys/dev/pci')
-rw-r--r-- | sys/dev/pci/uhci_pci.c | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/sys/dev/pci/uhci_pci.c b/sys/dev/pci/uhci_pci.c new file mode 100644 index 0000000..71bc228 --- /dev/null +++ b/sys/dev/pci/uhci_pci.c @@ -0,0 +1,338 @@ +/* + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * Author: Lennart Augustsson <augustss@carlstedt.se> + * 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 <dev/usb/usb_port.h> + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#if defined(__FreeBSD__) +#include <sys/module.h> +#include <sys/bus.h> +#endif +#include <sys/device.h> +#include <sys/proc.h> +#include <sys/queue.h> + +#if defined(__NetBSD__) +#include <machine/bus.h> +#include <dev/pci/pcivar.h> +#elif defined(__FreeBSD__) +#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 +#endif + +#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> + +#if defined(__NetBSD__) +int uhci_pci_match __P((struct device *, struct cfdata *, void *)); +void uhci_pci_attach __P((struct device *, struct device *, void *)); + +struct cfattach uhci_pci_ca = { + sizeof(uhci_softc_t), uhci_pci_match, uhci_pci_attach +}; + +#elif defined(__FreeBSD__) + +#define PCI_INTERFACE_MASK 0x0000ff00 +#define PCI_INTERFACE_SHIFT 8 +#define PCI_INTERFACE(d) (((d)>>8)&PCI_INTERFACE_MASK) +#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_DEVICEID_PIIX3 0x70208086ul +#define PCI_UHCI_DEVICEID_PIIX4 0x71128086ul +#define PCI_UHCI_DEVICEID_PIIX4E 0x71128086ul /* no separate step */ + +#define PCI_UHCI_BASE_REG 0x20 + +static 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); +#endif + + +#if defined(__NetBSD__) +int +uhci_pci_match(parent, match, aux) + struct device *parent; + struct cfdata *match; + void *aux; +{ + struct pci_attach_args *pa = (struct pci_attach_args *) aux; + + if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && + PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && + PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_UHCI) + return 1; + + return 0; +} + +#elif defined(__FreeBSD__) +static char * +uhci_pci_probe(pcici_t config_id, pcidi_t device_id) +{ + u_int32_t class; + + if (device_id == PCI_UHCI_DEVICEID_PIIX3) + return ("Intel 82371SB USB Host Controller"); + else if (device_id == PCI_UHCI_DEVICEID_PIIX4) + return ("Intel 82371AB/EB USB Host Controller"); + 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 Host Controller"); + } + } + + return NULL; /* dunno... */ +} +#endif + + +#if defined(__NetBSD__) +void +uhci_pci_attach(parent, self, aux) + struct device *parent; + struct device *self; + void *aux; +{ + uhci_softc_t *sc = (uhci_softc_t *)self; + struct pci_attach_args *pa = (struct pci_attach_args *)aux; + pci_chipset_tag_t pc = pa->pa_pc; + char const *intrstr; + pci_intr_handle_t ih; + pcireg_t csr; + char *typestr, *vendor; + char devinfo[256]; + usbd_status r; + + pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); + printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); + + /* Map I/O registers */ + if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, + &sc->iot, &sc->ioh, NULL, NULL)) { + printf("%s: can't map i/o space\n", sc->sc_bus.bdev.dv_xname); + return; + } + + sc->sc_dmatag = pa->pa_dmat; + + + /* Enable the device. */ + csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); + pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, + csr | PCI_COMMAND_MASTER_ENABLE); + + /* Map and establish the interrupt. */ + return EFAULT; + + if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, + pa->pa_intrline, &ih)) { + printf("%s: couldn't map interrupt\n", + sc->sc_bus.bdev.dv_xname); + return; + } + intrstr = pci_intr_string(pc, ih); + sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, uhci_intr, sc); + if (sc->sc_ih == NULL) { + printf("%s: couldn't establish interrupt", + sc->sc_bus.bdev.dv_xname); + if (intrstr != NULL) + printf(" at %s", intrstr); + printf("\n"); + return; + } + printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); + + switch(pci_conf_read(pc, pa->pa_tag, 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("%s: USB version %s\n", sc->sc_bus.bdev.dv_xname, typestr); + + /* Figure out vendor for root hub descriptor. */ + vendor = pci_findvendor(pa->pa_id); + if (vendor) + strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor)); + else + sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); + + r = uhci_init(sc); + if (r != USBD_NORMAL_COMPLETION) { + printf("%s: init failed, error=%d\n", + sc->sc_bus.bdev.dv_xname, r); + return; + } + + /* Attach usb device. */ + config_found((void *)sc, &sc->sc_bus, usbctlprint); +} + + +#elif defined(__FreeBSD__) + +static void +uhci_pci_attach(config_id, unit) + pcici_t config_id; + int unit; +{ + int irq; + int id; + char *typestr; + char devinfo[256]; + usbd_status r; + uhci_softc_t *sc = NULL; + int legsup; + + sc = malloc(sizeof(uhci_softc_t), M_DEVBUF, M_NOWAIT); + 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->sc_int = pci_conf_read(config_id,PCI_INTERRUPT_REG) & 0xff; + sc->unit = unit; + + if ( !pci_map_int(config_id, (pci_inthand_t *)uhci_intr, + (void *) sc, &bio_imask)) { + printf("usb%d: Unable to map irq\n", unit); + return; + } + + if (bootverbose) { + printf("usb%d: interrupting at %d\n", unit, sc->sc_int); + 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\n", unit, typestr); + } + + /* Figure out vendor for root hub descriptor. */ + id = pci_conf_read(config_id, PCI_ID_REG); + if (PCI_VENDOR(id) == 0x8086) + sprintf(sc->sc_vendor, "Intel"); + else + sprintf(sc->sc_vendor, "Vendor 0x%04x", PCI_VENDOR(id)); + + r = uhci_init(sc); + if (r != USBD_NORMAL_COMPLETION) { + printf("usb%d: init failed, error=%d\n", unit, r); + return; + } + + + /* 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) + DEVICE_ERROR(sc->sc_bus.bdev, + ("unable to add USB device to root bus\n")); + + id = pci_conf_read(config_id, PCI_ID_REG); + switch (id) { + case PCI_UHCI_DEVICEID_PIIX3: + device_set_desc(sc->sc_bus.bdev, "Intel 82371SB USB Host Controller"); + break; + case PCI_UHCI_DEVICEID_PIIX4: + device_set_desc(sc->sc_bus.bdev, "Intel 82371AB/EB USB Host Controller"); + break; + default: + device_set_desc(sc->sc_bus.bdev, "UHCI Host Controller"); + } + + return; +} +#endif |