svn commit: r186441 - in head/sys: arm/xscale/ixp425 dev/usb
Sam Leffler
sam at FreeBSD.org
Tue Dec 23 17:40:02 UTC 2008
Author: sam
Date: Tue Dec 23 17:40:02 2008
New Revision: 186441
URL: http://svn.freebsd.org/changeset/base/186441
Log:
move IXP4XX EHCI bus shim to the usb directory and rename
Added:
head/sys/dev/usb/ehci_ixp4xx.c (props changed)
- copied unchanged from r186438, head/sys/arm/xscale/ixp425/ixp435_ehci.c
Deleted:
head/sys/arm/xscale/ixp425/ixp435_ehci.c
Modified:
head/sys/arm/xscale/ixp425/files.ixp425
Modified: head/sys/arm/xscale/ixp425/files.ixp425
==============================================================================
--- head/sys/arm/xscale/ixp425/files.ixp425 Tue Dec 23 17:39:24 2008 (r186440)
+++ head/sys/arm/xscale/ixp425/files.ixp425 Tue Dec 23 17:40:02 2008 (r186441)
@@ -45,4 +45,4 @@ IxNpeMicrocode.dat optional npe_fw \
#
arm/xscale/ixp425/ixp425_qmgr.c optional qmgr
#
-arm/xscale/ixp425/ixp435_ehci.c optional ehci
+dev/usb/ehci_ixp4xx.c optional ehci
Copied: head/sys/dev/usb/ehci_ixp4xx.c (from r186438, head/sys/arm/xscale/ixp425/ixp435_ehci.c)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/usb/ehci_ixp4xx.c Tue Dec 23 17:40:02 2008 (r186441, copy of r186438, head/sys/arm/xscale/ixp425/ixp435_ehci.c)
@@ -0,0 +1,360 @@
+/*-
+ * Copyright (c) 2008 Sam Leffler. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/*
+ * IXP435 attachment driver for the USB Enhanced Host Controller.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_bus.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/queue.h>
+#include <sys/lockmgr.h>
+#include <sys/rman.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdivar.h>
+#include <dev/usb/usb_mem.h>
+
+#include <dev/usb/ehcireg.h>
+#include <dev/usb/ehcivar.h>
+
+#include <arm/xscale/ixp425/ixp425reg.h>
+#include <arm/xscale/ixp425/ixp425var.h>
+
+#define EHCI_VENDORID_IXP4XX 0x42fa05
+#define EHCI_HC_DEVSTR "IXP4XX Integrated USB 2.0 controller"
+
+struct ixp_ehci_softc {
+ ehci_softc_t base; /* storage for EHCI code */
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ struct bus_space tag; /* tag for private bus space ops */
+};
+
+static int ehci_ixp_detach(device_t self);
+
+static uint8_t ehci_bs_r_1(void *, bus_space_handle_t, bus_size_t);
+static void ehci_bs_w_1(void *, bus_space_handle_t, bus_size_t, u_int8_t);
+static uint16_t ehci_bs_r_2(void *, bus_space_handle_t, bus_size_t);
+static void ehci_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t);
+static uint32_t ehci_bs_r_4(void *, bus_space_handle_t, bus_size_t);
+static void ehci_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t);
+
+static int
+ehci_ixp_suspend(device_t self)
+{
+ ehci_softc_t *sc;
+ int err;
+
+ err = bus_generic_suspend(self);
+ if (err == 0) {
+ sc = device_get_softc(self);
+ ehci_power(PWR_SUSPEND, sc);
+ }
+ return err;
+}
+
+static int
+ehci_ixp_resume(device_t self)
+{
+ ehci_softc_t *sc = device_get_softc(self);
+
+ ehci_power(PWR_RESUME, sc);
+ bus_generic_resume(self);
+ return 0;
+}
+
+static int
+ehci_ixp_shutdown(device_t self)
+{
+ ehci_softc_t *sc;
+ int err;
+
+ err = bus_generic_shutdown(self);
+ if (err == 0) {
+ sc = device_get_softc(self);
+ ehci_shutdown(sc);
+ }
+ return err;
+}
+
+static int
+ehci_ixp_probe(device_t self)
+{
+ device_set_desc(self, EHCI_HC_DEVSTR);
+ return BUS_PROBE_DEFAULT;
+}
+
+static int
+ehci_ixp_attach(device_t self)
+{
+ struct ixp_ehci_softc *isc = device_get_softc(self);
+ ehci_softc_t *sc = &isc->base;
+ int err, rid;
+
+ sc->sc_bus.usbrev = USBREV_2_0;
+
+ /* NB: hints fix the memory location and irq */
+
+ rid = 0;
+ sc->io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY,
+ &rid, RF_ACTIVE);
+ if (sc->io_res == NULL) {
+ device_printf(self, "Could not map memory\n");
+ return ENXIO;
+ }
+
+ /*
+ * Craft special resource for bus space ops that handle
+ * byte-alignment of non-word addresses. Also, since
+ * we're already intercepting bus space ops we handle
+ * the register window offset that could otherwise be
+ * done with bus_space_subregion.
+ */
+ isc->iot = rman_get_bustag(sc->io_res);
+ isc->tag.bs_cookie = isc->iot;
+ /* read single */
+ isc->tag.bs_r_1 = ehci_bs_r_1,
+ isc->tag.bs_r_2 = ehci_bs_r_2,
+ isc->tag.bs_r_4 = ehci_bs_r_4,
+ /* write (single) */
+ isc->tag.bs_w_1 = ehci_bs_w_1,
+ isc->tag.bs_w_2 = ehci_bs_w_2,
+ isc->tag.bs_w_4 = ehci_bs_w_4,
+
+ sc->iot = &isc->tag;
+ sc->ioh = rman_get_bushandle(sc->io_res);
+ sc->sc_size = IXP435_USB1_SIZE - 0x100;
+
+ rid = 0;
+ sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ,
+ &rid, RF_ACTIVE);
+ if (sc->irq_res == NULL) {
+ device_printf(self, "Could not allocate irq\n");
+ ehci_ixp_detach(self);
+ return ENXIO;
+ }
+ sc->sc_bus.bdev = device_add_child(self, "usb", -1);
+ if (!sc->sc_bus.bdev) {
+ device_printf(self, "Could not add USB device\n");
+ ehci_ixp_detach(self);
+ return ENOMEM;
+ }
+ device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
+
+ sprintf(sc->sc_vendor, "Intel");
+ sc->sc_id_vendor = EHCI_VENDORID_IXP4XX;
+
+ err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO,
+ NULL, (driver_intr_t*)ehci_intr, sc, &sc->ih);
+ if (err) {
+ device_printf(self, "Could not setup irq, %d\n", err);
+ sc->ih = NULL;
+ ehci_ixp_detach(self);
+ return ENXIO;
+ }
+
+ /* There are no companion USB controllers */
+ sc->sc_ncomp = 0;
+
+ /* Allocate a parent dma tag for DMA maps */
+ err = bus_dma_tag_create(bus_get_dma_tag(self), 1, 0,
+ BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
+ BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
+ NULL, NULL, &sc->sc_bus.parent_dmatag);
+ if (err) {
+ device_printf(self, "Could not allocate parent DMA tag (%d)\n",
+ err);
+ ehci_ixp_detach(self);
+ return ENXIO;
+ }
+
+ /* Allocate a dma tag for transfer buffers */
+ err = bus_dma_tag_create(sc->sc_bus.parent_dmatag, 1, 0,
+ BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
+ BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
+ busdma_lock_mutex, &Giant, &sc->sc_bus.buffer_dmatag);
+ if (err) {
+ device_printf(self, "Could not allocate buffer DMA tag (%d)\n",
+ err);
+ ehci_ixp_detach(self);
+ return ENXIO;
+ }
+
+ /*
+ * Arrange to force Host mode, select big-endian byte alignment,
+ * and arrange to not terminate reset operations (the adapter
+ * will ignore it if we do but might as well save a reg write).
+ * Also, the controller has an embedded Transaction Translator
+ * which means port speed must be read from the Port Status
+ * register following a port enable.
+ */
+ sc->sc_flags |= EHCI_SCFLG_TT
+ | EHCI_SCFLG_SETMODE
+ | EHCI_SCFLG_BIGEDESC
+ | EHCI_SCFLG_BIGEMMIO
+ | EHCI_SCFLG_NORESTERM
+ ;
+ (void) ehci_reset(sc);
+
+ err = ehci_init(sc);
+ if (!err) {
+ sc->sc_flags |= EHCI_SCFLG_DONEINIT;
+ err = device_probe_and_attach(sc->sc_bus.bdev);
+ }
+
+ if (err) {
+ device_printf(self, "USB init failed err=%d\n", err);
+ ehci_ixp_detach(self);
+ return EIO;
+ }
+ return 0;
+}
+
+static int
+ehci_ixp_detach(device_t self)
+{
+ struct ixp_ehci_softc *isc = device_get_softc(self);
+ ehci_softc_t *sc = &isc->base;
+ int err;
+
+ 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) {
+ err = bus_teardown_intr(self, sc->irq_res, sc->ih);
+
+ if (err)
+ device_printf(self, "Could not tear down irq, %d\n",
+ err);
+ sc->ih = NULL;
+ }
+ if (sc->sc_bus.bdev != NULL) {
+ device_delete_child(self, sc->sc_bus.bdev);
+ sc->sc_bus.bdev = NULL;
+ }
+ if (sc->irq_res != NULL) {
+ bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
+ sc->irq_res = NULL;
+ }
+ if (sc->io_res != NULL) {
+ bus_release_resource(self, SYS_RES_MEMORY, 0, sc->io_res);
+ sc->io_res = NULL;
+ }
+ sc->iot = 0;
+ sc->ioh = 0;
+ return 0;
+}
+
+/*
+ * Bus space accessors for PIO operations.
+ */
+
+static uint8_t
+ehci_bs_r_1(void *t, bus_space_handle_t h, bus_size_t o)
+{
+ return bus_space_read_1((bus_space_tag_t) t, h,
+ 0x100 + (o &~ 3) + (3 - (o & 3)));
+}
+
+static void
+ehci_bs_w_1(void *t, bus_space_handle_t h, bus_size_t o, u_int8_t v)
+{
+ panic("%s", __func__);
+}
+
+static uint16_t
+ehci_bs_r_2(void *t, bus_space_handle_t h, bus_size_t o)
+{
+ return bus_space_read_2((bus_space_tag_t) t, h,
+ 0x100 + (o &~ 3) + (2 - (o & 3)));
+}
+
+static void
+ehci_bs_w_2(void *t, bus_space_handle_t h, bus_size_t o, uint16_t v)
+{
+ panic("%s", __func__);
+}
+
+static uint32_t
+ehci_bs_r_4(void *t, bus_space_handle_t h, bus_size_t o)
+{
+ return bus_space_read_4((bus_space_tag_t) t, h, 0x100 + o);
+}
+
+static void
+ehci_bs_w_4(void *t, bus_space_handle_t h, bus_size_t o, uint32_t v)
+{
+ bus_space_write_4((bus_space_tag_t) t, h, 0x100 + o, v);
+}
+
+static device_method_t ehci_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, ehci_ixp_probe),
+ DEVMETHOD(device_attach, ehci_ixp_attach),
+ DEVMETHOD(device_detach, ehci_ixp_detach),
+ DEVMETHOD(device_suspend, ehci_ixp_suspend),
+ DEVMETHOD(device_resume, ehci_ixp_resume),
+ DEVMETHOD(device_shutdown, ehci_ixp_shutdown),
+
+ /* Bus interface */
+ DEVMETHOD(bus_print_child, bus_generic_print_child),
+
+ {0, 0}
+};
+
+static driver_t ehci_driver = {
+ "ehci",
+ ehci_methods,
+ sizeof(struct ixp_ehci_softc),
+};
+static devclass_t ehci_devclass;
+DRIVER_MODULE(ehci, ixp, ehci_driver, ehci_devclass, 0, 0);
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