/* * dvbdev.h * * Copyright (C) 2000 Ralph Metzler & Marcus Metzler *                    for convergence integrated media GmbH * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Lesser Public License * as published by the Free Software Foundation; either version 2.1 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. * */ #ifndef _DVBDEV_H_#define _DVBDEV_H_ #include <linux/types.h>#include <linux/poll.h>#include <linux/fs.h>#include <linux/list.h> #define DVB_MAJOR 212 #if defined(CONFIG_DVB_MAX_ADAPTERS) && CONFIG_DVB_MAX_ADAPTERS > 0  #define DVB_MAX_ADAPTERS CONFIG_DVB_MAX_ADAPTERS#else  #define DVB_MAX_ADAPTERS 8#endif #define DVB_UNSET (-1) #define DVB_DEVICE_VIDEO      0#define DVB_DEVICE_AUDIO      1#define DVB_DEVICE_SEC        2#define DVB_DEVICE_FRONTEND   3#define DVB_DEVICE_DEMUX      4#define DVB_DEVICE_DVR        5#define DVB_DEVICE_CA         6#define DVB_DEVICE_NET        7#define DVB_DEVICE_OSD        8 #define DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr) \	static short adapter_nr[] = \		{[0 ... (DVB_MAX_ADAPTERS - 1)] = DVB_UNSET }; \	module_param_array(adapter_nr, short, NULL, 0444); \	MODULE_PARM_DESC(adapter_nr, "DVB adapter numbers") struct dvb_frontend; struct dvb_adapter {	int num;	struct list_head list_head;	struct list_head device_list;	const char *name;	u8 proposed_mac [6];	void* priv; 	struct device *device; 	struct module *module; 	int mfe_shared;			/* indicates mutually exclusive frontends */	struct dvb_device *mfe_dvbdev;	/* frontend device in use */	struct mutex mfe_lock;		/* access lock for thread creation */};  struct dvb_device {	struct list_head list_head;	const struct file_operations *fops;	struct dvb_adapter *adapter;	int type;	int minor;	u32 id; 	/* in theory, 'users' can vanish now,	   but I don't want to change too much now... */	int readers;	int writers;	int users; 	wait_queue_head_t	  wait_queue;	/* don't really need those !? -- FIXME: use video_usercopy  */	int (*kernel_ioctl)(struct file *file, unsigned int cmd, void *arg); 	void *priv;};  extern int dvb_register_adapter(struct dvb_adapter *adap, const char *name,				struct module *module, struct device *device,				short *adapter_nums);extern int dvb_unregister_adapter (struct dvb_adapter *adap); extern int dvb_register_device (struct dvb_adapter *adap,				struct dvb_device **pdvbdev,				const struct dvb_device *template,				void *priv,				int type); extern void dvb_unregister_device (struct dvb_device *dvbdev); extern int dvb_generic_open (struct inode *inode, struct file *file);extern int dvb_generic_release (struct inode *inode, struct file *file);extern long dvb_generic_ioctl (struct file *file,			      unsigned int cmd, unsigned long arg); /* we don't mess with video_usercopy() any more,we simply define out own dvb_usercopy(), which will hopefully becomegeneric_usercopy()  someday... */ extern int dvb_usercopy(struct file *file, unsigned int cmd, unsigned long arg,			    int (*func)(struct file *file, unsigned int cmd, void *arg)); /** generic DVB attach function. */#ifdef CONFIG_MEDIA_ATTACH#define dvb_attach(FUNCTION, ARGS...) ({ \	void *__r = NULL; \	typeof(&FUNCTION) __a = symbol_request(FUNCTION); \	if (__a) { \		__r = (void *) __a(ARGS); \		if (__r == NULL) \			symbol_put(FUNCTION); \	} else { \		printk(KERN_ERR "DVB: Unable to find symbol "#FUNCTION"()\n"); \	} \	__r; \}) #else#define dvb_attach(FUNCTION, ARGS...) ({ \	FUNCTION(ARGS); \}) #endif #endif /* #ifndef _DVBDEV_H_ */