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Diffstat (limited to 'rtemsbsd/powerpc/include/linux/device.h')
| -rw-r--r-- | rtemsbsd/powerpc/include/linux/device.h | 501 |
1 files changed, 501 insertions, 0 deletions
diff --git a/rtemsbsd/powerpc/include/linux/device.h b/rtemsbsd/powerpc/include/linux/device.h new file mode 100644 index 00000000..5ba628ab --- /dev/null +++ b/rtemsbsd/powerpc/include/linux/device.h @@ -0,0 +1,501 @@ +/*- + * Copyright (c) 2010 Isilon Systems, Inc. + * Copyright (c) 2010 iX Systems, Inc. + * Copyright (c) 2010 Panasas, Inc. + * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. + * 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 unmodified, 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 _LINUX_DEVICE_H_ +#define _LINUX_DEVICE_H_ + +#include <linux/types.h> +#include <linux/kobject.h> +#include <linux/list.h> +#include <linux/compiler.h> +#include <linux/types.h> +#include <linux/module.h> +#include <linux/workqueue.h> +#include <linux/sysfs.h> +#include <linux/kdev_t.h> +#include <linux/slab.h> +#include <asm/atomic.h> + +#include <sys/bus.h> + +enum irqreturn { IRQ_NONE = 0, IRQ_HANDLED, IRQ_WAKE_THREAD, }; +typedef enum irqreturn irqreturn_t; + +#include <stdio.h> + +#include <linux/ioport.h> +#include <linux/of.h> + +struct device { + struct device_node *of_node; + uintptr_t base; + void *driver_data; +}; + +static inline void * +devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) +{ + + (void)dev; + return (kmalloc(size, gfp)); +} + +static inline void * +devm_kzalloc(struct device *dev, size_t size, gfp_t gfp) +{ + + (void)dev; + return (kzalloc(size, gfp)); +} + +static inline void __iomem * +devm_ioremap(struct device *dev, resource_size_t offset, resource_size_t size) +{ + + return (void __iomem *)(dev->base + (uintptr_t)offset); +} + +#define devm_alloc_percpu(dev, type) \ + devm_kzalloc(dev, sizeof(type) * rtems_get_processor_count(), GFP_KERNEL) + +#define dev_err(dev, fmt, ...) \ + do { (void)dev; fprintf(stderr, fmt, ##__VA_ARGS__); } while (0) + +#define dev_warn(dev, fmt, ...) \ + do { (void)dev; fprintf(stderr, fmt, ##__VA_ARGS__); } while (0) + +#define dev_info(dev, fmt, ...) \ + do { (void)dev; fprintf(stderr, fmt, ##__VA_ARGS__); } while (0) + +static inline struct device * +get_device(struct device *dev) +{ + + return (dev); +} + +static inline void +put_device(struct device *dev) +{ + + (void)dev; +} + +static inline void * +dev_get_drvdata(const struct device *dev) +{ + + return (dev->driver_data); +} + +static inline void +dev_set_drvdata(struct device *dev, void *drvdata) +{ + + dev->driver_data = drvdata; +} + +#ifndef __rtems__ +struct class { + const char *name; + struct module *owner; + struct kobject kobj; + devclass_t bsdclass; + void (*class_release)(struct class *class); + void (*dev_release)(struct device *dev); + char * (*devnode)(struct device *dev, umode_t *mode); +}; + +struct device { + struct device *parent; + struct list_head irqents; + device_t bsddev; + dev_t devt; + struct class *class; + void (*release)(struct device *dev); + struct kobject kobj; + uint64_t *dma_mask; + void *driver_data; + unsigned int irq; + unsigned int msix; + unsigned int msix_max; +}; + +extern struct device linux_rootdev; +extern struct kobject class_root; + +struct class_attribute { + struct attribute attr; + ssize_t (*show)(struct class *, struct class_attribute *, char *); + ssize_t (*store)(struct class *, struct class_attribute *, const char *, size_t); + const void *(*namespace)(struct class *, const struct class_attribute *); +}; + +#define CLASS_ATTR(_name, _mode, _show, _store) \ + struct class_attribute class_attr_##_name = \ + { { #_name, NULL, _mode }, _show, _store } + +struct device_attribute { + struct attribute attr; + ssize_t (*show)(struct device *, + struct device_attribute *, char *); + ssize_t (*store)(struct device *, + struct device_attribute *, const char *, + size_t); +}; + +#define DEVICE_ATTR(_name, _mode, _show, _store) \ + struct device_attribute dev_attr_##_name = \ + { { #_name, NULL, _mode }, _show, _store } + +/* Simple class attribute that is just a static string */ +struct class_attribute_string { + struct class_attribute attr; + char *str; +}; + +static inline ssize_t +show_class_attr_string(struct class *class, + struct class_attribute *attr, char *buf) +{ + struct class_attribute_string *cs; + cs = container_of(attr, struct class_attribute_string, attr); + return snprintf(buf, PAGE_SIZE, "%s\n", cs->str); +} + +/* Currently read-only only */ +#define _CLASS_ATTR_STRING(_name, _mode, _str) \ + { __ATTR(_name, _mode, show_class_attr_string, NULL), _str } +#define CLASS_ATTR_STRING(_name, _mode, _str) \ + struct class_attribute_string class_attr_##_name = \ + _CLASS_ATTR_STRING(_name, _mode, _str) + +#define dev_err(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) +#define dev_warn(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) +#define dev_info(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) +#define dev_printk(lvl, dev, fmt, ...) \ + device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) + +static inline void * +dev_get_drvdata(struct device *dev) +{ + + return dev->driver_data; +} + +static inline void +dev_set_drvdata(struct device *dev, void *data) +{ + + dev->driver_data = data; +} + +static inline struct device * +get_device(struct device *dev) +{ + + if (dev) + kobject_get(&dev->kobj); + + return (dev); +} + +static inline char * +dev_name(const struct device *dev) +{ + + return kobject_name(&dev->kobj); +} + +#define dev_set_name(_dev, _fmt, ...) \ + kobject_set_name(&(_dev)->kobj, (_fmt), ##__VA_ARGS__) + +static inline void +put_device(struct device *dev) +{ + + if (dev) + kobject_put(&dev->kobj); +} + +static inline ssize_t +class_show(struct kobject *kobj, struct attribute *attr, char *buf) +{ + struct class_attribute *dattr; + ssize_t error; + + dattr = container_of(attr, struct class_attribute, attr); + error = -EIO; + if (dattr->show) + error = dattr->show(container_of(kobj, struct class, kobj), + dattr, buf); + return (error); +} + +static inline ssize_t +class_store(struct kobject *kobj, struct attribute *attr, const char *buf, + size_t count) +{ + struct class_attribute *dattr; + ssize_t error; + + dattr = container_of(attr, struct class_attribute, attr); + error = -EIO; + if (dattr->store) + error = dattr->store(container_of(kobj, struct class, kobj), + dattr, buf, count); + return (error); +} + +static inline void +class_release(struct kobject *kobj) +{ + struct class *class; + + class = container_of(kobj, struct class, kobj); + if (class->class_release) + class->class_release(class); +} + +static struct sysfs_ops class_sysfs = { + .show = class_show, + .store = class_store, +}; +static struct kobj_type class_ktype = { + .release = class_release, + .sysfs_ops = &class_sysfs +}; + +static inline int +class_register(struct class *class) +{ + + class->bsdclass = devclass_create(class->name); + kobject_init(&class->kobj, &class_ktype); + kobject_set_name(&class->kobj, class->name); + kobject_add(&class->kobj, &class_root, class->name); + + return (0); +} + +static inline void +class_unregister(struct class *class) +{ + + kobject_put(&class->kobj); +} + +static inline void +device_release(struct kobject *kobj) +{ + struct device *dev; + + dev = container_of(kobj, struct device, kobj); + /* This is the precedence defined by linux. */ + if (dev->release) + dev->release(dev); + else if (dev->class && dev->class->dev_release) + dev->class->dev_release(dev); +} + +static inline ssize_t +dev_show(struct kobject *kobj, struct attribute *attr, char *buf) +{ + struct device_attribute *dattr; + ssize_t error; + + dattr = container_of(attr, struct device_attribute, attr); + error = -EIO; + if (dattr->show) + error = dattr->show(container_of(kobj, struct device, kobj), + dattr, buf); + return (error); +} + +static inline ssize_t +dev_store(struct kobject *kobj, struct attribute *attr, const char *buf, + size_t count) +{ + struct device_attribute *dattr; + ssize_t error; + + dattr = container_of(attr, struct device_attribute, attr); + error = -EIO; + if (dattr->store) + error = dattr->store(container_of(kobj, struct device, kobj), + dattr, buf, count); + return (error); +} + +static struct sysfs_ops dev_sysfs = { .show = dev_show, .store = dev_store, }; +static struct kobj_type dev_ktype = { + .release = device_release, + .sysfs_ops = &dev_sysfs +}; + +/* + * Devices are registered and created for exporting to sysfs. create + * implies register and register assumes the device fields have been + * setup appropriately before being called. + */ +static inline int +device_register(struct device *dev) +{ + device_t bsddev; + int unit; + + bsddev = NULL; + if (dev->devt) { + unit = MINOR(dev->devt); + bsddev = devclass_get_device(dev->class->bsdclass, unit); + } else + unit = -1; + if (bsddev == NULL) + bsddev = device_add_child(dev->parent->bsddev, + dev->class->kobj.name, unit); + if (bsddev) { + if (dev->devt == 0) + dev->devt = makedev(0, device_get_unit(bsddev)); + device_set_softc(bsddev, dev); + } + dev->bsddev = bsddev; + kobject_init(&dev->kobj, &dev_ktype); + kobject_add(&dev->kobj, &dev->class->kobj, dev_name(dev)); + + return (0); +} + +static inline void +device_unregister(struct device *dev) +{ + device_t bsddev; + + bsddev = dev->bsddev; + mtx_lock(&Giant); + if (bsddev) + device_delete_child(device_get_parent(bsddev), bsddev); + mtx_unlock(&Giant); + put_device(dev); +} + +struct device *device_create(struct class *class, struct device *parent, + dev_t devt, void *drvdata, const char *fmt, ...); + +static inline void +device_destroy(struct class *class, dev_t devt) +{ + device_t bsddev; + int unit; + + unit = MINOR(devt); + bsddev = devclass_get_device(class->bsdclass, unit); + if (bsddev) + device_unregister(device_get_softc(bsddev)); +} + +static inline void +class_kfree(struct class *class) +{ + + kfree(class); +} + +static inline struct class * +class_create(struct module *owner, const char *name) +{ + struct class *class; + int error; + + class = kzalloc(sizeof(*class), M_WAITOK); + class->owner = owner; + class->name= name; + class->class_release = class_kfree; + error = class_register(class); + if (error) { + kfree(class); + return (NULL); + } + + return (class); +} + +static inline void +class_destroy(struct class *class) +{ + + if (class == NULL) + return; + class_unregister(class); +} + +static inline int +device_create_file(struct device *dev, const struct device_attribute *attr) +{ + + if (dev) + return sysfs_create_file(&dev->kobj, &attr->attr); + return -EINVAL; +} + +static inline void +device_remove_file(struct device *dev, const struct device_attribute *attr) +{ + + if (dev) + sysfs_remove_file(&dev->kobj, &attr->attr); +} + +static inline int +class_create_file(struct class *class, const struct class_attribute *attr) +{ + + if (class) + return sysfs_create_file(&class->kobj, &attr->attr); + return -EINVAL; +} + +static inline void +class_remove_file(struct class *class, const struct class_attribute *attr) +{ + + if (class) + sysfs_remove_file(&class->kobj, &attr->attr); +} + +static inline int dev_to_node(struct device *dev) +{ + return -1; +} + +char *kvasprintf(gfp_t, const char *, va_list); +char *kasprintf(gfp_t, const char *, ...); +#endif /* __rtems__ */ + +#endif /* _LINUX_DEVICE_H_ */ |