mirror of
https://github.com/outbackdingo/UltraGrid.git
synced 2026-03-21 23:40:26 +00:00
0a57fc4faf
* format is now entered as a parameter string (-g <mode>) * expect currently buffers as big as needed (exactly one frame) TODO: revide if isn't possible to read whole buffer at once (ideally the memmapped one, and extract frames by hand) * now it is needed to set /sys/class/sdivideo/sdivideorxX/bufsize * bump to new driver (2.7.2)
117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/* mdev.h
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*
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* Definitions for Linear Systems Ltd. Master devices.
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*
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* Copyright (C) 2005-2010 Linear Systems Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either Version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public Licence for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Linear Systems can be contacted at <http://www.linsys.ca/>.
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*
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*/
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#ifndef _MDEV_H
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#define _MDEV_H
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#include <linux/version.h> /* LINUX_VERSION_CODE */
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#include <linux/spinlock.h> /* spinlock_t */
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#include <linux/list.h> /* list_head */
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#include <linux/interrupt.h> /* irqreturn_t */
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#include <linux/device.h> /* device */
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#include <linux/mutex.h> /* mutex */
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#include <asm/io.h> /* inl () */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
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typedef unsigned long resource_size_t;
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#endif
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
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#define IRQ_HANDLER(name,irq,dev_id,regs) \
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name (int irq, void *dev_id, struct pt_regs *regs)
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#if defined RHEL_RELEASE_VERSION
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#if RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(4,5) || \
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RHEL_RELEASE_CODE == RHEL_RELEASE_VERSION(5,0)
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typedef irqreturn_t (*irq_handler_t)(int, void *, struct pt_regs *);
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#endif
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#else
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typedef irqreturn_t (*irq_handler_t)(int, void *, struct pt_regs *);
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#endif
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#else
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#define IRQ_HANDLER(name,irq,dev_id,regs) \
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name (int irq, void *dev_id)
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#endif
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/**
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* master_dev - generic Master device
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* @list: handle for linked list of Master devices
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* @bridge_addr: PCI bridge or DMA Controller base address
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* @core: device core base address
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* @name: marketing name of this device
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* @id: device ID
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* @version: firmware version
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* @irq: interrupt line
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* @irq_handler: pointer to interrupt handler
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* @iface_list: linked list of interfaces
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* @capabilities: capabilities flags
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* @dev: pointer to device structure
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* @irq_lock: lock for shared board registers accessed in interrupt context
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* @reg_lock: lock for all other shared board registers
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* @users_mutex: mutex for iface[].users
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* @parent: parent device
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**/
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struct master_dev {
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struct list_head list;
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void __iomem *bridge_addr;
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union {
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void __iomem *addr;
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resource_size_t port;
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} core;
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const char *name;
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unsigned int id;
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unsigned int version;
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unsigned int irq;
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irq_handler_t irq_handler;
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struct list_head iface_list;
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unsigned int capabilities;
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struct device *dev;
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spinlock_t irq_lock;
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spinlock_t reg_lock;
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struct mutex users_mutex;
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struct device *parent;
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};
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/* External function prototypes */
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unsigned int mdev_index (struct master_dev *card, struct list_head *list);
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int mdev_register (struct master_dev *card,
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struct list_head *devlist,
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char *driver_name,
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struct class *cls);
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void mdev_unregister (struct master_dev *card, struct class *cls);
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struct class *mdev_init (char *name);
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void mdev_cleanup (struct class *cls);
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/* Inline functions */
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#define master_inl(card,offset) \
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inl((card)->core.port+(offset))
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#define master_outl(card,offset,val) \
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outl((val),(card)->core.port+(offset))
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#endif
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