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- /*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright 2002 by Peter Grehan. 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.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 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.
- *
- * $FreeBSD$
- */
- /*
- * Driver for KeyLargo/Pangea, the MacPPC south bridge ASIC.
- */
- #include <sys/param.h>
- #include <sys/systm.h>
- #include <sys/kernel.h>
- #include <sys/malloc.h>
- #include <sys/module.h>
- #include <sys/bus.h>
- #include <sys/rman.h>
- #include <vm/vm.h>
- #include <vm/pmap.h>
- #include <machine/bus.h>
- #include <machine/intr_machdep.h>
- #include <machine/resource.h>
- #include <machine/vmparam.h>
- #include <dev/ofw/ofw_bus.h>
- #include <dev/ofw/ofw_bus_subr.h>
- #include <dev/ofw/openfirm.h>
- #include <powerpc/powermac/maciovar.h>
- #include <dev/pci/pcivar.h>
- #include <dev/pci/pcireg.h>
- /*
- * Macio softc
- */
- struct macio_softc {
- phandle_t sc_node;
- vm_offset_t sc_base;
- vm_offset_t sc_size;
- struct rman sc_mem_rman;
- /* FCR registers */
- int sc_memrid;
- struct resource *sc_memr;
- };
- static MALLOC_DEFINE(M_MACIO, "macio", "macio device information");
- static int macio_probe(device_t);
- static int macio_attach(device_t);
- static int macio_print_child(device_t dev, device_t child);
- static void macio_probe_nomatch(device_t, device_t);
- static struct resource *macio_alloc_resource(device_t, device_t, int, int *,
- rman_res_t, rman_res_t, rman_res_t,
- u_int);
- static int macio_activate_resource(device_t, device_t, int, int,
- struct resource *);
- static int macio_deactivate_resource(device_t, device_t, int, int,
- struct resource *);
- static int macio_release_resource(device_t, device_t, int, int,
- struct resource *);
- static struct resource_list *macio_get_resource_list (device_t, device_t);
- static ofw_bus_get_devinfo_t macio_get_devinfo;
- /*
- * Bus interface definition
- */
- static device_method_t macio_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, macio_probe),
- DEVMETHOD(device_attach, macio_attach),
- DEVMETHOD(device_detach, bus_generic_detach),
- DEVMETHOD(device_shutdown, bus_generic_shutdown),
- DEVMETHOD(device_suspend, bus_generic_suspend),
- DEVMETHOD(device_resume, bus_generic_resume),
- /* Bus interface */
- DEVMETHOD(bus_print_child, macio_print_child),
- DEVMETHOD(bus_probe_nomatch, macio_probe_nomatch),
- DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
- DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
- DEVMETHOD(bus_alloc_resource, macio_alloc_resource),
- DEVMETHOD(bus_release_resource, macio_release_resource),
- DEVMETHOD(bus_activate_resource, macio_activate_resource),
- DEVMETHOD(bus_deactivate_resource, macio_deactivate_resource),
- DEVMETHOD(bus_get_resource_list, macio_get_resource_list),
- DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
- /* ofw_bus interface */
- DEVMETHOD(ofw_bus_get_devinfo, macio_get_devinfo),
- DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
- DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
- DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
- DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
- DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
- { 0, 0 }
- };
- static driver_t macio_pci_driver = {
- "macio",
- macio_methods,
- sizeof(struct macio_softc)
- };
- devclass_t macio_devclass;
- EARLY_DRIVER_MODULE(macio, pci, macio_pci_driver, macio_devclass, 0, 0,
- BUS_PASS_BUS);
- /*
- * PCI ID search table
- */
- static struct macio_pci_dev {
- u_int32_t mpd_devid;
- char *mpd_desc;
- } macio_pci_devlist[] = {
- { 0x0017106b, "Paddington I/O Controller" },
- { 0x0022106b, "KeyLargo I/O Controller" },
- { 0x0025106b, "Pangea I/O Controller" },
- { 0x003e106b, "Intrepid I/O Controller" },
- { 0x0041106b, "K2 KeyLargo I/O Controller" },
- { 0x004f106b, "Shasta I/O Controller" },
- { 0, NULL }
- };
- /*
- * Devices to exclude from the probe
- * XXX some of these may be required in the future...
- */
- #define MACIO_QUIRK_IGNORE 0x00000001
- #define MACIO_QUIRK_CHILD_HAS_INTR 0x00000002
- #define MACIO_QUIRK_USE_CHILD_REG 0x00000004
- struct macio_quirk_entry {
- const char *mq_name;
- int mq_quirks;
- };
- static struct macio_quirk_entry macio_quirks[] = {
- { "escc-legacy", MACIO_QUIRK_IGNORE },
- { "timer", MACIO_QUIRK_IGNORE },
- { "escc", MACIO_QUIRK_CHILD_HAS_INTR },
- { "i2s", MACIO_QUIRK_CHILD_HAS_INTR |
- MACIO_QUIRK_USE_CHILD_REG },
- { NULL, 0 }
- };
- static int
- macio_get_quirks(const char *name)
- {
- struct macio_quirk_entry *mqe;
- for (mqe = macio_quirks; mqe->mq_name != NULL; mqe++)
- if (strcmp(name, mqe->mq_name) == 0)
- return (mqe->mq_quirks);
- return (0);
- }
- /*
- * Add an interrupt to the dev's resource list if present
- */
- static void
- macio_add_intr(phandle_t devnode, struct macio_devinfo *dinfo)
- {
- phandle_t iparent;
- int *intr;
- int i, nintr;
- int icells;
- if (dinfo->mdi_ninterrupts >= 6) {
- printf("macio: device has more than 6 interrupts\n");
- return;
- }
- nintr = OF_getprop_alloc_multi(devnode, "interrupts", sizeof(*intr),
- (void **)&intr);
- if (nintr == -1) {
- nintr = OF_getprop_alloc_multi(devnode, "AAPL,interrupts",
- sizeof(*intr), (void **)&intr);
- if (nintr == -1)
- return;
- }
- if (intr[0] == -1)
- return;
- if (OF_getprop(devnode, "interrupt-parent", &iparent, sizeof(iparent))
- <= 0)
- panic("Interrupt but no interrupt parent!\n");
- if (OF_getprop(OF_node_from_xref(iparent), "#interrupt-cells", &icells,
- sizeof(icells)) <= 0)
- icells = 1;
- for (i = 0; i < nintr; i+=icells) {
- u_int irq = MAP_IRQ(iparent, intr[i]);
- resource_list_add(&dinfo->mdi_resources, SYS_RES_IRQ,
- dinfo->mdi_ninterrupts, irq, irq, 1);
- dinfo->mdi_interrupts[dinfo->mdi_ninterrupts] = irq;
- dinfo->mdi_ninterrupts++;
- }
- }
- static void
- macio_add_reg(phandle_t devnode, struct macio_devinfo *dinfo)
- {
- struct macio_reg *reg, *regp;
- phandle_t child;
- char buf[8];
- int i, layout_id = 0, nreg, res;
- nreg = OF_getprop_alloc_multi(devnode, "reg", sizeof(*reg), (void **)®);
- if (nreg == -1)
- return;
- /*
- * Some G5's have broken properties in the i2s-a area. If so we try
- * to fix it. Right now we know of two different cases, one for
- * sound layout-id 36 and the other one for sound layout-id 76.
- * What is missing is the base address for the memory addresses.
- * We take them from the parent node (i2s) and use the size
- * information from the child.
- */
- if (reg[0].mr_base == 0) {
- child = OF_child(devnode);
- while (child != 0) {
- res = OF_getprop(child, "name", buf, sizeof(buf));
- if (res > 0 && strcmp(buf, "sound") == 0)
- break;
- child = OF_peer(child);
- }
- res = OF_getprop(child, "layout-id", &layout_id,
- sizeof(layout_id));
- if (res > 0 && (layout_id == 36 || layout_id == 76)) {
- res = OF_getprop_alloc_multi(OF_parent(devnode), "reg",
- sizeof(*regp), (void **)®p);
- reg[0] = regp[0];
- reg[1].mr_base = regp[1].mr_base;
- reg[2].mr_base = regp[1].mr_base + reg[1].mr_size;
- }
- }
- for (i = 0; i < nreg; i++) {
- resource_list_add(&dinfo->mdi_resources, SYS_RES_MEMORY, i,
- reg[i].mr_base, reg[i].mr_base + reg[i].mr_size,
- reg[i].mr_size);
- }
- }
- /*
- * PCI probe
- */
- static int
- macio_probe(device_t dev)
- {
- int i;
- u_int32_t devid;
- devid = pci_get_devid(dev);
- for (i = 0; macio_pci_devlist[i].mpd_desc != NULL; i++) {
- if (devid == macio_pci_devlist[i].mpd_devid) {
- device_set_desc(dev, macio_pci_devlist[i].mpd_desc);
- return (0);
- }
- }
- return (ENXIO);
- }
- /*
- * PCI attach: scan Open Firmware child nodes, and attach these as children
- * of the macio bus
- */
- static int
- macio_attach(device_t dev)
- {
- struct macio_softc *sc;
- struct macio_devinfo *dinfo;
- phandle_t root;
- phandle_t child;
- phandle_t subchild;
- device_t cdev;
- u_int reg[3];
- char compat[32];
- int error, quirks;
- sc = device_get_softc(dev);
- root = sc->sc_node = ofw_bus_get_node(dev);
- /*
- * Locate the device node and it's base address
- */
- if (OF_getprop(root, "assigned-addresses",
- reg, sizeof(reg)) < (ssize_t)sizeof(reg)) {
- return (ENXIO);
- }
- /* Used later to see if we have to enable the I2S part. */
- OF_getprop(root, "compatible", compat, sizeof(compat));
- sc->sc_base = reg[2];
- sc->sc_size = MACIO_REG_SIZE;
- sc->sc_memrid = PCIR_BAR(0);
- sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
- &sc->sc_memrid, RF_ACTIVE);
- sc->sc_mem_rman.rm_type = RMAN_ARRAY;
- sc->sc_mem_rman.rm_descr = "MacIO Device Memory";
- error = rman_init(&sc->sc_mem_rman);
- if (error) {
- device_printf(dev, "rman_init() failed. error = %d\n", error);
- return (error);
- }
- error = rman_manage_region(&sc->sc_mem_rman, 0, sc->sc_size);
- if (error) {
- device_printf(dev,
- "rman_manage_region() failed. error = %d\n", error);
- return (error);
- }
- /*
- * Iterate through the sub-devices
- */
- for (child = OF_child(root); child != 0; child = OF_peer(child)) {
- dinfo = malloc(sizeof(*dinfo), M_MACIO, M_WAITOK | M_ZERO);
- if (ofw_bus_gen_setup_devinfo(&dinfo->mdi_obdinfo, child) !=
- 0) {
- free(dinfo, M_MACIO);
- continue;
- }
- quirks = macio_get_quirks(dinfo->mdi_obdinfo.obd_name);
- if ((quirks & MACIO_QUIRK_IGNORE) != 0) {
- ofw_bus_gen_destroy_devinfo(&dinfo->mdi_obdinfo);
- free(dinfo, M_MACIO);
- continue;
- }
- resource_list_init(&dinfo->mdi_resources);
- dinfo->mdi_ninterrupts = 0;
- macio_add_intr(child, dinfo);
- if ((quirks & MACIO_QUIRK_USE_CHILD_REG) != 0)
- macio_add_reg(OF_child(child), dinfo);
- else
- macio_add_reg(child, dinfo);
- if ((quirks & MACIO_QUIRK_CHILD_HAS_INTR) != 0)
- for (subchild = OF_child(child); subchild != 0;
- subchild = OF_peer(subchild))
- macio_add_intr(subchild, dinfo);
- cdev = device_add_child(dev, NULL, -1);
- if (cdev == NULL) {
- device_printf(dev, "<%s>: device_add_child failed\n",
- dinfo->mdi_obdinfo.obd_name);
- resource_list_free(&dinfo->mdi_resources);
- ofw_bus_gen_destroy_devinfo(&dinfo->mdi_obdinfo);
- free(dinfo, M_MACIO);
- continue;
- }
- device_set_ivars(cdev, dinfo);
- /* Set FCRs to enable some devices */
- if (sc->sc_memr == NULL)
- continue;
- if (strcmp(ofw_bus_get_name(cdev), "bmac") == 0 ||
- (ofw_bus_get_compat(cdev) != NULL &&
- strcmp(ofw_bus_get_compat(cdev), "bmac+") == 0)) {
- uint32_t fcr;
- fcr = bus_read_4(sc->sc_memr, HEATHROW_FCR);
- fcr |= FCR_ENET_ENABLE & ~FCR_ENET_RESET;
- bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr);
- DELAY(50000);
- fcr |= FCR_ENET_RESET;
- bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr);
- DELAY(50000);
- fcr &= ~FCR_ENET_RESET;
- bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr);
- DELAY(50000);
-
- bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr);
- }
- /*
- * Make sure the I2S0 and the I2S0_CLK are enabled.
- * On certain G5's they are not.
- */
- if ((strcmp(ofw_bus_get_name(cdev), "i2s") == 0) &&
- (strcmp(compat, "K2-Keylargo") == 0)) {
- uint32_t fcr1;
- fcr1 = bus_read_4(sc->sc_memr, KEYLARGO_FCR1);
- fcr1 |= FCR1_I2S0_CLK_ENABLE | FCR1_I2S0_ENABLE;
- bus_write_4(sc->sc_memr, KEYLARGO_FCR1, fcr1);
- }
- }
- return (bus_generic_attach(dev));
- }
- static int
- macio_print_child(device_t dev, device_t child)
- {
- struct macio_devinfo *dinfo;
- struct resource_list *rl;
- int retval = 0;
- dinfo = device_get_ivars(child);
- rl = &dinfo->mdi_resources;
- retval += bus_print_child_header(dev, child);
- retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx");
- retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd");
- retval += bus_print_child_footer(dev, child);
- return (retval);
- }
- static void
- macio_probe_nomatch(device_t dev, device_t child)
- {
- struct macio_devinfo *dinfo;
- struct resource_list *rl;
- const char *type;
- if (bootverbose) {
- dinfo = device_get_ivars(child);
- rl = &dinfo->mdi_resources;
- if ((type = ofw_bus_get_type(child)) == NULL)
- type = "(unknown)";
- device_printf(dev, "<%s, %s>", type, ofw_bus_get_name(child));
- resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx");
- resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd");
- printf(" (no driver attached)\n");
- }
- }
- static struct resource *
- macio_alloc_resource(device_t bus, device_t child, int type, int *rid,
- rman_res_t start, rman_res_t end, rman_res_t count,
- u_int flags)
- {
- struct macio_softc *sc;
- int needactivate;
- struct resource *rv;
- struct rman *rm;
- u_long adjstart, adjend, adjcount;
- struct macio_devinfo *dinfo;
- struct resource_list_entry *rle;
- sc = device_get_softc(bus);
- dinfo = device_get_ivars(child);
- needactivate = flags & RF_ACTIVE;
- flags &= ~RF_ACTIVE;
- switch (type) {
- case SYS_RES_MEMORY:
- case SYS_RES_IOPORT:
- rle = resource_list_find(&dinfo->mdi_resources, SYS_RES_MEMORY,
- *rid);
- if (rle == NULL) {
- device_printf(bus, "no rle for %s memory %d\n",
- device_get_nameunit(child), *rid);
- return (NULL);
- }
- if (start < rle->start)
- adjstart = rle->start;
- else if (start > rle->end)
- adjstart = rle->end;
- else
- adjstart = start;
- if (end < rle->start)
- adjend = rle->start;
- else if (end > rle->end)
- adjend = rle->end;
- else
- adjend = end;
- adjcount = adjend - adjstart;
- rm = &sc->sc_mem_rman;
- break;
- case SYS_RES_IRQ:
- /* Check for passthrough from subattachments like macgpio */
- if (device_get_parent(child) != bus)
- return BUS_ALLOC_RESOURCE(device_get_parent(bus), child,
- type, rid, start, end, count, flags);
- rle = resource_list_find(&dinfo->mdi_resources, SYS_RES_IRQ,
- *rid);
- if (rle == NULL) {
- if (dinfo->mdi_ninterrupts >= 6) {
- device_printf(bus,
- "%s has more than 6 interrupts\n",
- device_get_nameunit(child));
- return (NULL);
- }
- resource_list_add(&dinfo->mdi_resources, SYS_RES_IRQ,
- dinfo->mdi_ninterrupts, start, start, 1);
- dinfo->mdi_interrupts[dinfo->mdi_ninterrupts] = start;
- dinfo->mdi_ninterrupts++;
- }
- return (resource_list_alloc(&dinfo->mdi_resources, bus, child,
- type, rid, start, end, count, flags));
- default:
- device_printf(bus, "unknown resource request from %s\n",
- device_get_nameunit(child));
- return (NULL);
- }
- rv = rman_reserve_resource(rm, adjstart, adjend, adjcount, flags,
- child);
- if (rv == NULL) {
- device_printf(bus,
- "failed to reserve resource %#lx - %#lx (%#lx) for %s\n",
- adjstart, adjend, adjcount, device_get_nameunit(child));
- return (NULL);
- }
- rman_set_rid(rv, *rid);
- if (needactivate) {
- if (bus_activate_resource(child, type, *rid, rv) != 0) {
- device_printf(bus,
- "failed to activate resource for %s\n",
- device_get_nameunit(child));
- rman_release_resource(rv);
- return (NULL);
- }
- }
- return (rv);
- }
- static int
- macio_release_resource(device_t bus, device_t child, int type, int rid,
- struct resource *res)
- {
- if (rman_get_flags(res) & RF_ACTIVE) {
- int error = bus_deactivate_resource(child, type, rid, res);
- if (error)
- return error;
- }
- return (rman_release_resource(res));
- }
- static int
- macio_activate_resource(device_t bus, device_t child, int type, int rid,
- struct resource *res)
- {
- struct macio_softc *sc;
- void *p;
- sc = device_get_softc(bus);
- if (type == SYS_RES_IRQ)
- return (bus_activate_resource(bus, type, rid, res));
- if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) {
- p = pmap_mapdev((vm_offset_t)rman_get_start(res) + sc->sc_base,
- (vm_size_t)rman_get_size(res));
- if (p == NULL)
- return (ENOMEM);
- rman_set_virtual(res, p);
- rman_set_bustag(res, &bs_le_tag);
- rman_set_bushandle(res, (u_long)p);
- }
- return (rman_activate_resource(res));
- }
- static int
- macio_deactivate_resource(device_t bus, device_t child, int type, int rid,
- struct resource *res)
- {
- /*
- * If this is a memory resource, unmap it.
- */
- if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) {
- u_int32_t psize;
- psize = rman_get_size(res);
- pmap_unmapdev((vm_offset_t)rman_get_virtual(res), psize);
- }
- return (rman_deactivate_resource(res));
- }
- static struct resource_list *
- macio_get_resource_list (device_t dev, device_t child)
- {
- struct macio_devinfo *dinfo;
- dinfo = device_get_ivars(child);
- return (&dinfo->mdi_resources);
- }
- static const struct ofw_bus_devinfo *
- macio_get_devinfo(device_t dev, device_t child)
- {
- struct macio_devinfo *dinfo;
- dinfo = device_get_ivars(child);
- return (&dinfo->mdi_obdinfo);
- }
- int
- macio_enable_wireless(device_t dev, bool enable)
- {
- struct macio_softc *sc = device_get_softc(dev);
- uint32_t x;
- if (enable) {
- x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2);
- x |= 0x4;
- bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x);
- /* Enable card slot. */
- bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0f, 5);
- DELAY(1000);
- bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0f, 4);
- DELAY(1000);
- x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2);
- x &= ~0x80000000;
- bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x);
- /* out8(gpio + 0x10, 4); */
- bus_write_1(sc->sc_memr, KEYLARGO_EXTINT_GPIO_REG_BASE + 0x0b, 0);
- bus_write_1(sc->sc_memr, KEYLARGO_EXTINT_GPIO_REG_BASE + 0x0a, 0x28);
- bus_write_1(sc->sc_memr, KEYLARGO_EXTINT_GPIO_REG_BASE + 0x0d, 0x28);
- bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0d, 0x28);
- bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0e, 0x28);
- bus_write_4(sc->sc_memr, 0x1c000, 0);
- /* Initialize the card. */
- bus_write_4(sc->sc_memr, 0x1a3e0, 0x41);
- x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2);
- x |= 0x80000000;
- bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x);
- } else {
- x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2);
- x &= ~0x4;
- bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x);
- /* out8(gpio + 0x10, 0); */
- }
- return (0);
- }
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