Page MenuHomeFreeBSD
Files F137118636

D13521.id36911.diff
No OneTemporary
Actions

D13521.id36911.diff
View Options

Index: sys/conf/files
===================================================================
--- sys/conf/files
+++ sys/conf/files
@@ -3107,8 +3107,9 @@
dev/stge/if_stge.c optional stge
dev/sym/sym_hipd.c optional sym \
dependency "$S/dev/sym/sym_{conf,defs}.h"
-dev/syscon/syscon.c optional fdt syscon
-dev/syscon/syscon_if.m optional fdt syscon
+dev/syscon/syscon.c optional syscon
+dev/syscon/syscon_generic.c optional fdt syscon
+dev/syscon/syscon_if.m optional syscon
dev/syscons/blank/blank_saver.c optional blank_saver
dev/syscons/daemon/daemon_saver.c optional daemon_saver
dev/syscons/dragon/dragon_saver.c optional dragon_saver
Index: sys/dev/syscon/syscon.h
===================================================================
--- /dev/null
+++ sys/dev/syscon/syscon.h
@@ -0,0 +1,77 @@
+/*-
+ * Copyright 2017 Kyle Evans <kevans@FreeBSD.org>
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef DEV_SYSCON_H
+#define DEV_SYSCON_H
+
+#include "opt_platform.h"
+
+#include <sys/types.h>
+#include <sys/kobj.h>
+#ifdef FDT
+#include <dev/ofw/ofw_bus.h>
+#endif
+
+struct syscon {
+ KOBJ_FIELDS;
+
+ TAILQ_ENTRY(syscon) syscon_link; /* Global list entry */
+
+ device_t pdev; /* provider device */
+#ifdef FDT
+ phandle_t ofw_node; /* OFW node for syscon */
+#endif
+ void *softc; /* provider softc */
+};
+
+/*
+ * Shorthands for constructing method tables.
+ */
+#define SYSCONMETHOD KOBJMETHOD
+#define SYSCONMETHOD_END KOBJMETHOD_END
+#define syscon_method_t kobj_method_t
+#define syscon_class_t kobj_class_t
+DECLARE_CLASS(syscon_class);
+
+void *syscon_get_softc(struct syscon *syscon);
+
+/*
+ * Provider interface
+ */
+struct syscon *syscon_create(device_t pdev, syscon_class_t syscon_class);
+struct syscon *syscon_register(struct syscon *syscon);
+int syscon_unregister(struct syscon *syscon);
+
+#ifdef FDT
+struct syscon *syscon_create_ofw_node(device_t pdev,
+ syscon_class_t syscon_class, phandle_t node);
+phandle_t syscon_get_ofw_node(struct syscon *syscon);
+int syscon_get_by_ofw_property(device_t consumer, phandle_t node, char *name,
+ struct syscon **syscon);
+#endif
+
+#endif /* DEV_SYSCON_H */
Index: sys/dev/syscon/syscon.c
===================================================================
--- sys/dev/syscon/syscon.c
+++ sys/dev/syscon/syscon.c
@@ -1,5 +1,5 @@
/*-
- * Copyright (c) 2015 Michal Meloun
+ * Copyright (c) 2017 Kyle Evans <kevans@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -33,153 +33,223 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
+#include "opt_platform.h"
+
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
+#include <sys/kobj.h>
+#include <sys/lock.h>
#include <sys/module.h>
#include <sys/rman.h>
+#include <sys/sx.h>
+#include <sys/queue.h>
#include <machine/bus.h>
+#ifdef FDT
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
+#endif
#include "syscon_if.h"
+#include "syscon.h"
+
+/*
+ * Syscon interface details
+ */
+typedef TAILQ_HEAD(syscon_list, syscon) syscon_list_t;
+
+/*
+ * Declarations
+ */
+static int syscon_method_init(struct syscon *syscon);
+static int syscon_method_uninit(struct syscon *syscon);
-#define SYSCON_LOCK(_sc) mtx_lock(&(_sc)->mtx)
-#define SYSCON_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
-#define SYSCON_LOCK_INIT(_sc) mtx_init(&(_sc)->mtx, \
- device_get_nameunit((_sc)->dev), "syscon", MTX_DEF)
-#define SYSCON_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx);
-#define SYSCON_ASSERT_LOCKED(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED);
-#define SYSCON_ASSERT_UNLOCKED(_sc) mtx_assert(&(_sc)->mtx, MA_NOTOWNED);
-
-struct syscon_softc {
- device_t dev;
- struct resource *mem_res;
- struct mtx mtx;
+MALLOC_DEFINE(M_SYSCON, "syscon", "Syscon driver");
+
+static syscon_list_t syscon_list = TAILQ_HEAD_INITIALIZER(syscon_list);
+static struct sx syscon_topo_lock;
+SX_SYSINIT(syscon_topology, &syscon_topo_lock, "Syscon topology lock");
+
+/*
+ * Syscon methods.
+ */
+static syscon_method_t syscon_methods[] = {
+ SYSCONMETHOD(syscon_init, syscon_method_init),
+ SYSCONMETHOD(syscon_uninit, syscon_method_uninit),
+
+ SYSCONMETHOD_END
};
+DEFINE_CLASS_0(syscon, syscon_class, syscon_methods, 0);
+
+#define SYSCON_TOPO_SLOCK() sx_slock(&syscon_topo_lock)
+#define SYSCON_TOPO_XLOCK() sx_xlock(&syscon_topo_lock)
+#define SYSCON_TOPO_UNLOCK() sx_unlock(&syscon_topo_lock)
+#define SYSCON_TOPO_ASSERT() sx_assert(&syscon_topo_lock, SA_LOCKED)
+#define SYSCON_TOPO_XASSERT() sx_assert(&syscon_topo_lock, SA_XLOCKED)
-static struct ofw_compat_data compat_data[] = {
- {"syscon", 1},
- {NULL, 0}
+/*
+ * Default syscon methods for base class.
+ */
+static int
+syscon_method_init(struct syscon *syscon)
+{
+
+ return (0);
};
-static uint32_t
-syscon_read_4(device_t dev, device_t consumer, bus_size_t offset)
+static int
+syscon_method_uninit(struct syscon *syscon)
{
- struct syscon_softc *sc;
- uint32_t val;
- sc = device_get_softc(dev);
+ return (0);
+};
- SYSCON_LOCK(sc);
- val = bus_read_4(sc->mem_res, offset);
- SYSCON_UNLOCK(sc);
- return (val);
-}
+void *
+syscon_get_softc(struct syscon *syscon)
+{
-static void
-syscon_write_4(device_t dev, device_t consumer, bus_size_t offset, uint32_t val)
+ return (syscon->softc);
+};
+
+/*
+ * Create and initialize syscon object, but do not register it.
+ */
+struct syscon *
+syscon_create(device_t pdev, syscon_class_t syscon_class)
{
- struct syscon_softc *sc;
+ struct syscon *syscon;
+
+ /* Create object and initialize it. */
+ syscon = malloc(sizeof(struct syscon), M_SYSCON,
+ M_WAITOK | M_ZERO);
+ kobj_init((kobj_t)syscon, (kobj_class_t)syscon_class);
- sc = device_get_softc(dev);
+ /* Allocate softc if required. */
+ if (syscon_class->size > 0)
+ syscon->softc = malloc(syscon_class->size, M_SYSCON,
+ M_WAITOK | M_ZERO);
- SYSCON_LOCK(sc);
- bus_write_4(sc->mem_res, offset, val);
- SYSCON_UNLOCK(sc);
+ /* Rest of init. */
+ syscon->pdev = pdev;
+ return (syscon);
}
-static void
-syscon_modify_4(device_t dev, device_t consumer, bus_size_t offset,
- uint32_t clear_bits, uint32_t set_bits)
+/* Register syscon object. */
+struct syscon *
+syscon_register(struct syscon *syscon)
{
- struct syscon_softc *sc;
- uint32_t val;
-
- sc = device_get_softc(dev);
+ int rv;
+
+#ifdef FDT
+ if (syscon->ofw_node <= 0)
+ syscon->ofw_node = ofw_bus_get_node(syscon->pdev);
+ if (syscon->ofw_node <= 0)
+ return (NULL);
+#endif
+
+ rv = SYSCON_INIT(syscon);
+ if (rv != 0) {
+ printf("SYSCON_INIT failed: %d\n", rv);
+ return (NULL);
+ }
- SYSCON_LOCK(sc);
- val = bus_read_4(sc->mem_res, offset);
- val &= ~clear_bits;
- val |= set_bits;
- bus_write_4(sc->mem_res, offset, val);
- SYSCON_UNLOCK(sc);
+#ifdef FDT
+ OF_device_register_xref(OF_xref_from_node(syscon->ofw_node),
+ syscon->pdev);
+#endif
+ SYSCON_TOPO_XLOCK();
+ TAILQ_INSERT_TAIL(&syscon_list, syscon, syscon_link);
+ SYSCON_TOPO_UNLOCK();
+ return (syscon);
}
-static int
-syscon_probe(device_t dev)
+int
+syscon_unregister(struct syscon *syscon)
{
- if (!ofw_bus_status_okay(dev))
- return (ENXIO);
- if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
- return (ENXIO);
-
- device_set_desc(dev, "syscon");
- return (BUS_PROBE_GENERIC);
+ SYSCON_TOPO_XLOCK();
+ TAILQ_REMOVE(&syscon_list, syscon, syscon_link);
+ SYSCON_TOPO_UNLOCK();
+#ifdef FDT
+ OF_device_register_xref(OF_xref_from_node(syscon->ofw_node), NULL);
+#endif
+ return (SYSCON_UNINIT(syscon));
}
-static int
-syscon_attach(device_t dev)
+/**
+ * Provider methods
+ */
+#ifdef FDT
+static struct syscon *
+syscon_find_by_ofw_node(phandle_t node)
{
- struct syscon_softc *sc;
- int rid;
- phandle_t node;
-
- sc = device_get_softc(dev);
- sc->dev = dev;
- node = ofw_bus_get_node(sc->dev);
+ struct syscon *entry;
- SYSCON_LOCK_INIT(sc);
+ SYSCON_TOPO_ASSERT();
- rid = 0;
- sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
- RF_ACTIVE);
- if (sc->mem_res == NULL) {
- device_printf(dev, "Cannot allocate memory resource\n");
- return (ENXIO);
+ TAILQ_FOREACH(entry, &syscon_list, syscon_link) {
+ if (entry->ofw_node == node)
+ return (entry);
}
- OF_device_register_xref(OF_xref_from_node(node), dev);
+ return (NULL);
+}
- return (0);
+struct syscon *
+syscon_create_ofw_node(device_t pdev, syscon_class_t syscon_class,
+ phandle_t node)
+{
+ struct syscon *syscon;
+
+ syscon = syscon_create(pdev, syscon_class);
+ if (syscon == NULL)
+ return (NULL);
+ syscon->ofw_node = node;
+ if (syscon_register(syscon) == NULL)
+ return (NULL);
+ return (syscon);
}
-static int
-syscon_detach(device_t dev)
+phandle_t
+syscon_get_ofw_node(struct syscon *syscon)
{
- struct syscon_softc *sc;
- sc = device_get_softc(dev);
+ return (syscon->ofw_node);
+}
- OF_device_register_xref(OF_xref_from_device(dev), NULL);
+int
+syscon_get_by_ofw_property(device_t cdev, phandle_t cnode, char *name,
+ struct syscon **syscon)
+{
+ pcell_t *cells;
+ int ncells;
+
+ if (cnode <= 0)
+ cnode = ofw_bus_get_node(cdev);
+ if (cnode <= 0) {
+ device_printf(cdev,
+ "%s called on not ofw based device\n", __func__);
+ return (ENXIO);
+ }
+ ncells = OF_getencprop_alloc(cnode, name, sizeof(pcell_t),
+ (void **)&cells);
+ if (ncells < 1)
+ return (ENXIO);
- SYSCON_LOCK_DESTROY(sc);
- if (sc->mem_res != NULL)
- bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->mem_res);
+ /* Translate to syscon node. */
+ SYSCON_TOPO_SLOCK();
+ *syscon = syscon_find_by_ofw_node(OF_node_from_xref(cells[0]));
+ if (*syscon == NULL) {
+ SYSCON_TOPO_UNLOCK();
+ device_printf(cdev, "Failed to find syscon node\n");
+ OF_prop_free(cells);
+ return (ENODEV);
+ }
+ SYSCON_TOPO_UNLOCK();
+ OF_prop_free(cells);
return (0);
}
-
-static device_method_t syscon_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, syscon_probe),
- DEVMETHOD(device_attach, syscon_attach),
- DEVMETHOD(device_detach, syscon_detach),
-
- /* Syscon interface */
- DEVMETHOD(syscon_read_4, syscon_read_4),
- DEVMETHOD(syscon_write_4, syscon_write_4),
- DEVMETHOD(syscon_modify_4, syscon_modify_4),
-
- DEVMETHOD_END
-};
-
-DEFINE_CLASS_0(syscon, syscon_driver, syscon_methods,
- sizeof(struct syscon_softc));
-static devclass_t syscon_devclass;
-EARLY_DRIVER_MODULE(syscon, simplebus, syscon_driver, syscon_devclass, 0, 0,
- BUS_PASS_BUS + BUS_PASS_ORDER_LATE);
-MODULE_VERSION(syscon, 1);
+#endif
Index: sys/dev/syscon/syscon_generic.c
===================================================================
--- /dev/null
+++ sys/dev/syscon/syscon_generic.c
@@ -0,0 +1,211 @@
+/*-
+ * Copyright (c) 2015 Michal Meloun
+ * 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 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 AUTHOR 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.
+ */
+
+/*
+ * This is a generic syscon driver, whose purpose is to provide access to
+ * various unrelated bits packed in a single register space. It is usually used
+ * as a fallback to more specific driver, but works well enough for simple
+ * access.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/rman.h>
+
+#include <machine/bus.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include "syscon_if.h"
+#include "syscon.h"
+
+MALLOC_DECLARE(M_SYSCON);
+
+static uint32_t syscon_generic_read_4(struct syscon *syscon, bus_size_t offset);
+static int syscon_generic_write_4(struct syscon *syscon, bus_size_t offset,
+ uint32_t val);
+static int syscon_generic_modify_4(struct syscon *syscon, bus_size_t offset,
+ uint32_t clear_bits, uint32_t set_bits);
+
+/*
+ * Generic syscon driver (FDT)
+ */
+struct syscon_generic_softc {
+ device_t dev;
+ struct syscon *syscon;
+ struct resource *mem_res;
+ struct mtx mtx;
+};
+
+static struct ofw_compat_data compat_data[] = {
+ {"syscon", 1},
+ {NULL, 0}
+};
+
+#define SYSCON_LOCK(_sc) mtx_lock(&(_sc)->mtx)
+#define SYSCON_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
+#define SYSCON_LOCK_INIT(_sc) mtx_init(&(_sc)->mtx, \
+ device_get_nameunit((_sc)->dev), "syscon", MTX_DEF)
+#define SYSCON_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx);
+#define SYSCON_ASSERT_LOCKED(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED);
+#define SYSCON_ASSERT_UNLOCKED(_sc) mtx_assert(&(_sc)->mtx, MA_NOTOWNED);
+
+static syscon_method_t syscon_generic_methods[] = {
+ SYSCONMETHOD(syscon_read_4, syscon_generic_read_4),
+ SYSCONMETHOD(syscon_write_4, syscon_generic_write_4),
+ SYSCONMETHOD(syscon_modify_4, syscon_generic_modify_4),
+
+ SYSCONMETHOD_END
+};
+DEFINE_CLASS_1(syscon_generic, syscon_generic_class, syscon_generic_methods,
+ 0, syscon_class);
+
+static uint32_t
+syscon_generic_read_4(struct syscon *syscon, bus_size_t offset)
+{
+ struct syscon_generic_softc *sc;
+ uint32_t val;
+
+ sc = device_get_softc(syscon->pdev);
+
+ SYSCON_LOCK(sc);
+ val = bus_read_4(sc->mem_res, offset);
+ SYSCON_UNLOCK(sc);
+ return (val);
+}
+
+static int
+syscon_generic_write_4(struct syscon *syscon, bus_size_t offset, uint32_t val)
+{
+ struct syscon_generic_softc *sc;
+
+ sc = device_get_softc(syscon->pdev);
+
+ SYSCON_LOCK(sc);
+ bus_write_4(sc->mem_res, offset, val);
+ SYSCON_UNLOCK(sc);
+ return (0);
+}
+
+static int
+syscon_generic_modify_4(struct syscon *syscon, bus_size_t offset,
+ uint32_t clear_bits, uint32_t set_bits)
+{
+ struct syscon_generic_softc *sc;
+ uint32_t val;
+
+ sc = device_get_softc(syscon->pdev);
+
+ SYSCON_LOCK(sc);
+ val = bus_read_4(sc->mem_res, offset);
+ val &= ~clear_bits;
+ val |= set_bits;
+ bus_write_4(sc->mem_res, offset, val);
+ SYSCON_UNLOCK(sc);
+ return (0);
+}
+
+static int
+syscon_generic_probe(device_t dev)
+{
+
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+ if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "syscon");
+ return (BUS_PROBE_GENERIC);
+}
+
+static int
+syscon_generic_attach(device_t dev)
+{
+ struct syscon_generic_softc *sc;
+ int rid;
+
+ sc = device_get_softc(dev);
+ sc->dev = dev;
+
+ rid = 0;
+ sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
+ RF_ACTIVE);
+ if (sc->mem_res == NULL) {
+ device_printf(dev, "Cannot allocate memory resource\n");
+ return (ENXIO);
+ }
+
+ SYSCON_LOCK_INIT(sc);
+ sc->syscon = syscon_create_ofw_node(dev, &syscon_generic_class,
+ ofw_bus_get_node(dev));
+ if (sc->syscon == NULL) {
+ device_printf(dev, "Failed to create/register syscon\n");
+ return (ENXIO);
+ }
+ return (0);
+}
+
+static int
+syscon_generic_detach(device_t dev)
+{
+ struct syscon_generic_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ if (sc->syscon != NULL) {
+ syscon_unregister(sc->syscon);
+ free(sc->syscon, M_SYSCON);
+ }
+
+ SYSCON_LOCK_DESTROY(sc);
+
+ if (sc->mem_res != NULL)
+ bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->mem_res);
+ return (0);
+}
+
+static device_method_t syscon_generic_dmethods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, syscon_generic_probe),
+ DEVMETHOD(device_attach, syscon_generic_attach),
+ DEVMETHOD(device_detach, syscon_generic_detach),
+
+ DEVMETHOD_END
+};
+
+DEFINE_CLASS_0(syscon_generic, syscon_generic_driver, syscon_generic_dmethods,
+ sizeof(struct syscon_generic_softc));
+static devclass_t syscon_generic_devclass;
+EARLY_DRIVER_MODULE(syscon_generic, simplebus, syscon_generic_driver,
+ syscon_generic_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_LATE);
+MODULE_VERSION(syscon_generic, 1);
Index: sys/dev/syscon/syscon_if.m
===================================================================
--- sys/dev/syscon/syscon_if.m
+++ sys/dev/syscon/syscon_if.m
@@ -30,25 +30,34 @@
INTERFACE syscon;
+HEADER {
+ struct syscon;
+}
+
+METHOD int init {
+ struct syscon *syscon;
+};
+
+METHOD int uninit {
+ struct syscon *syscon;
+};
+
/**
* Accessor functions for syscon register space
*/
METHOD uint32_t read_4 {
- device_t dev;
- device_t consumer;
+ struct syscon *syscon;
bus_size_t offset;
};
-METHOD void write_4 {
- device_t dev;
- device_t consumer;
+METHOD int write_4 {
+ struct syscon *syscon;
bus_size_t offset;
uint32_t val;
};
-METHOD void modify_4 {
- device_t dev;
- device_t consumer;
+METHOD int modify_4 {
+ struct syscon *syscon;
bus_size_t offset;
uint32_t clear_bits;
uint32_t set_bits;

File Metadata

Mime Type
text/plain
Expires
Sat, Nov 22, 4:36 AM (14 h, 49 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
25908090
Default Alt Text
D13521.id36911.diff (18 KB)

Event Timeline