Preliminary support for OHCI motherboards

1 files changed, 295 insertions, 0 deletions

diff --git a/sys/dev/pci/ohci_pci.c b/sys/dev/pci/ohci_pci.c
new file mode 100644
index 0000000..656c6dd
--- /dev/null
+++ b/sys/dev/pci/ohci_pci.c
@@ -0,0 +1,295 @@
+/*	$NetBSD: ohci_pci.c,v 1.5 1998/11/25 22:32:04 augustss 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.
+ */
+
+/*
+ * USB Open Host Controller driver.
+ *
+ * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
+ * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
+ */
+
+#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/ohcireg.h>
+#include <dev/usb/ohcivar.h>
+
+#if defined(__NetBSD__)
+int	ohci_pci_match __P((struct device *, struct cfdata *, void *));
+void	ohci_pci_attach __P((struct device *, struct device *, void *));
+
+struct cfattach ohci_pci_ca = {
+	sizeof(struct ohci_softc), ohci_pci_match, ohci_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_OHCI_BASE_REG	0x10
+
+static char *ohci_pci_probe              __P((pcici_t, pcidi_t));
+static void ohci_pci_attach              __P((pcici_t, int));
+
+u_long ohci_count = 0;           /* global counter for nr. of devices found */
+
+static struct pci_device ohci_pci_device = {
+        "ohci",
+	ohci_pci_probe,
+	ohci_pci_attach,
+	&ohci_count,
+	NULL
+};
+
+DATA_SET(pcidevice_set, ohci_pci_device);
+#endif
+
+#if defined(__NetBSD__)
+int
+ohci_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_OHCI)
+		return 1;
+ 
+	return 0;
+}
+#elif defined(__FreeBSD__)
+static char *
+ohci_pci_probe(pcici_t config_id, pcidi_t device_id)
+{
+        u_int32_t class;
+
+	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_OHCI)
+		return("OHCI Host Controller");
+
+	return NULL;	/* dunno */
+}
+#endif
+
+#if defined(__NetBSD__)
+void
+ohci_pci_attach(parent, self, aux)
+	struct device *parent;
+	struct device *self;
+	void *aux;
+{
+	struct ohci_softc *sc = (struct ohci_softc *)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 devinfo[256];
+	usbd_status r;
+	char *vendor;
+
+	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_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
+			   &sc->iot, &sc->ioh, NULL, NULL)) {
+		printf("%s: can't map mem 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. */
+	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, ohci_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);
+
+	/* 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 = ohci_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
+ohci_pci_attach(pcici_t config_id, int unit)
+{
+	int id;
+	usbd_status r;
+	ohci_softc_t *sc = NULL;
+	int rev;
+
+	sc = malloc(sizeof(ohci_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(ohci_softc_t));
+
+	sc->sc_iobase = pci_conf_read(config_id,PCI_OHCI_BASE_REG) & 0xfffff000;
+	sc->unit      = unit;
+
+	if ( !pci_map_int(config_id, (pci_inthand_t *)ohci_intr,
+			  (void *) sc, &bio_imask)) {
+		printf("usb%d: Unable to map irq\n", unit);
+		return;                    
+	}
+
+#ifndef USBVERBOSE
+	if (bootverbose)
+#endif
+	{
+		printf("usb%d: OHCI version %d%d, interrupting at %d\n", unit,
+		/* XXX is this correct? Does the correct version show up? */
+			(rev&0xf0)>>8, rev&0x0f,
+			(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) == 0x8086)
+		sprintf(sc->sc_vendor, "Intel");
+	else
+		sprintf(sc->sc_vendor, "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) {
+		DEVICE_ERROR(sc->sc_bus.bdev,
+			("unable to add USB device to root bus\n"));
+		return;
+	}
+
+	r = ohci_init(sc);
+	if (r != USBD_NORMAL_COMPLETION) {
+		printf("usb%d: init failed, error=%d\n", unit, r);
+		device_delete_child(root_bus, sc->sc_bus.bdev);
+		return;
+	}
+
+	device_set_desc(sc->sc_bus.bdev, "OHCI Host Controller");
+
+	return;
+}
+#endif