From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/linux/uio_driver.h | 138 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 kernel/include/linux/uio_driver.h (limited to 'kernel/include/linux/uio_driver.h') diff --git a/kernel/include/linux/uio_driver.h b/kernel/include/linux/uio_driver.h new file mode 100644 index 000000000..32c0e83d6 --- /dev/null +++ b/kernel/include/linux/uio_driver.h @@ -0,0 +1,138 @@ +/* + * include/linux/uio_driver.h + * + * Copyright(C) 2005, Benedikt Spranger + * Copyright(C) 2005, Thomas Gleixner + * Copyright(C) 2006, Hans J. Koch + * Copyright(C) 2006, Greg Kroah-Hartman + * + * Userspace IO driver. + * + * Licensed under the GPLv2 only. + */ + +#ifndef _UIO_DRIVER_H_ +#define _UIO_DRIVER_H_ + +#include +#include + +struct module; +struct uio_map; + +/** + * struct uio_mem - description of a UIO memory region + * @name: name of the memory region for identification + * @addr: address of the device's memory (phys_addr is used since + * addr can be logical, virtual, or physical & phys_addr_t + * should always be large enough to handle any of the + * address types) + * @size: size of IO + * @memtype: type of memory addr points to + * @internal_addr: ioremap-ped version of addr, for driver internal use + * @map: for use by the UIO core only. + */ +struct uio_mem { + const char *name; + phys_addr_t addr; + resource_size_t size; + int memtype; + void __iomem *internal_addr; + struct uio_map *map; +}; + +#define MAX_UIO_MAPS 5 + +struct uio_portio; + +/** + * struct uio_port - description of a UIO port region + * @name: name of the port region for identification + * @start: start of port region + * @size: size of port region + * @porttype: type of port (see UIO_PORT_* below) + * @portio: for use by the UIO core only. + */ +struct uio_port { + const char *name; + unsigned long start; + unsigned long size; + int porttype; + struct uio_portio *portio; +}; + +#define MAX_UIO_PORT_REGIONS 5 + +struct uio_device { + struct module *owner; + struct device *dev; + int minor; + atomic_t event; + struct fasync_struct *async_queue; + wait_queue_head_t wait; + struct uio_info *info; + struct kobject *map_dir; + struct kobject *portio_dir; +}; + +/** + * struct uio_info - UIO device capabilities + * @uio_dev: the UIO device this info belongs to + * @name: device name + * @version: device driver version + * @mem: list of mappable memory regions, size==0 for end of list + * @port: list of port regions, size==0 for end of list + * @irq: interrupt number or UIO_IRQ_CUSTOM + * @irq_flags: flags for request_irq() + * @priv: optional private data + * @handler: the device's irq handler + * @mmap: mmap operation for this uio device + * @open: open operation for this uio device + * @release: release operation for this uio device + * @irqcontrol: disable/enable irqs when 0/1 is written to /dev/uioX + */ +struct uio_info { + struct uio_device *uio_dev; + const char *name; + const char *version; + struct uio_mem mem[MAX_UIO_MAPS]; + struct uio_port port[MAX_UIO_PORT_REGIONS]; + long irq; + unsigned long irq_flags; + void *priv; + irqreturn_t (*handler)(int irq, struct uio_info *dev_info); + int (*mmap)(struct uio_info *info, struct vm_area_struct *vma); + int (*open)(struct uio_info *info, struct inode *inode); + int (*release)(struct uio_info *info, struct inode *inode); + int (*irqcontrol)(struct uio_info *info, s32 irq_on); +}; + +extern int __must_check + __uio_register_device(struct module *owner, + struct device *parent, + struct uio_info *info); + +/* use a define to avoid include chaining to get THIS_MODULE */ +#define uio_register_device(parent, info) \ + __uio_register_device(THIS_MODULE, parent, info) + +extern void uio_unregister_device(struct uio_info *info); +extern void uio_event_notify(struct uio_info *info); + +/* defines for uio_info->irq */ +#define UIO_IRQ_CUSTOM -1 +#define UIO_IRQ_NONE 0 + +/* defines for uio_mem->memtype */ +#define UIO_MEM_NONE 0 +#define UIO_MEM_PHYS 1 +#define UIO_MEM_LOGICAL 2 +#define UIO_MEM_VIRTUAL 3 + +/* defines for uio_port->porttype */ +#define UIO_PORT_NONE 0 +#define UIO_PORT_X86 1 +#define UIO_PORT_GPIO 2 +#define UIO_PORT_OTHER 3 + +#endif /* _LINUX_UIO_DRIVER_H_ */ -- cgit 1.2.3-korg