![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
While mxl111sf may have multiple frontends, it has just one tuner. Reflect that on the media graph. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
300 lines
9.4 KiB
C
300 lines
9.4 KiB
C
/*
|
|
* 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>
|
|
#include <media/media-device.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 - represents a Digital TV adapter using Linux DVB API
|
|
*
|
|
* @num: Number of the adapter
|
|
* @list_head: List with the DVB adapters
|
|
* @device_list: List with the DVB devices
|
|
* @name: Name of the adapter
|
|
* @proposed_mac: proposed MAC address for the adapter
|
|
* @priv: private data
|
|
* @device: pointer to struct device
|
|
* @module: pointer to struct module
|
|
* @mfe_shared: mfe shared: indicates mutually exclusive frontends
|
|
* Thie usage of this flag is currently deprecated
|
|
* @mfe_dvbdev: Frontend device in use, in the case of MFE
|
|
* @mfe_lock: Lock to prevent using the other frontends when MFE is
|
|
* used.
|
|
* @mdev: pointer to struct media_device, used when the media
|
|
* controller is used.
|
|
* @conn: RF connector. Used only if the device has no separate
|
|
* tuner.
|
|
* @conn_pads: pointer to struct media_pad associated with @conn;
|
|
*/
|
|
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 */
|
|
|
|
#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
|
|
struct media_device *mdev;
|
|
struct media_entity *conn;
|
|
struct media_pad *conn_pads;
|
|
#endif
|
|
};
|
|
|
|
/**
|
|
* struct dvb_device - represents a DVB device node
|
|
*
|
|
* @list_head: List head with all DVB devices
|
|
* @fops: pointer to struct file_operations
|
|
* @adapter: pointer to the adapter that holds this device node
|
|
* @type: type of the device: DVB_DEVICE_SEC, DVB_DEVICE_FRONTEND,
|
|
* DVB_DEVICE_DEMUX, DVB_DEVICE_DVR, DVB_DEVICE_CA, DVB_DEVICE_NET
|
|
* @minor: devnode minor number. Major number is always DVB_MAJOR.
|
|
* @id: device ID number, inside the adapter
|
|
* @readers: Initialized by the caller. Each call to open() in Read Only mode
|
|
* decreases this counter by one.
|
|
* @writers: Initialized by the caller. Each call to open() in Read/Write
|
|
* mode decreases this counter by one.
|
|
* @users: Initialized by the caller. Each call to open() in any mode
|
|
* decreases this counter by one.
|
|
* @wait_queue: wait queue, used to wait for certain events inside one of
|
|
* the DVB API callers
|
|
* @kernel_ioctl: callback function used to handle ioctl calls from userspace.
|
|
* @name: Name to be used for the device at the Media Controller
|
|
* @entity: pointer to struct media_entity associated with the device node
|
|
* @pads: pointer to struct media_pad associated with @entity;
|
|
* @priv: private data
|
|
* @intf_devnode: Pointer to media_intf_devnode. Used by the dvbdev core to
|
|
* store the MC device node interface
|
|
* @tsout_num_entities: Number of Transport Stream output entities
|
|
* @tsout_entity: array with MC entities associated to each TS output node
|
|
* @tsout_pads: array with the source pads for each @tsout_entity
|
|
*
|
|
* This structure is used by the DVB core (frontend, CA, net, demux) in
|
|
* order to create the device nodes. Usually, driver should not initialize
|
|
* this struct diretly.
|
|
*/
|
|
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);
|
|
|
|
/* Needed for media controller register/unregister */
|
|
#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
|
|
const char *name;
|
|
|
|
/* Allocated and filled inside dvbdev.c */
|
|
struct media_intf_devnode *intf_devnode;
|
|
|
|
unsigned tsout_num_entities;
|
|
struct media_entity *entity, *tsout_entity;
|
|
struct media_pad *pads, *tsout_pads;
|
|
#endif
|
|
|
|
void *priv;
|
|
};
|
|
|
|
/**
|
|
* dvb_register_adapter - Registers a new DVB adapter
|
|
*
|
|
* @adap: pointer to struct dvb_adapter
|
|
* @name: Adapter's name
|
|
* @module: initialized with THIS_MODULE at the caller
|
|
* @device: pointer to struct device that corresponds to the device driver
|
|
* @adapter_nums: Array with a list of the numbers for @dvb_register_adapter;
|
|
* to select among them. Typically, initialized with:
|
|
* DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nums)
|
|
*/
|
|
int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
|
|
struct module *module, struct device *device,
|
|
short *adapter_nums);
|
|
|
|
/**
|
|
* dvb_unregister_adapter - Unregisters a DVB adapter
|
|
*
|
|
* @adap: pointer to struct dvb_adapter
|
|
*/
|
|
int dvb_unregister_adapter(struct dvb_adapter *adap);
|
|
|
|
/**
|
|
* dvb_register_device - Registers a new DVB device
|
|
*
|
|
* @adap: pointer to struct dvb_adapter
|
|
* @pdvbdev: pointer to the place where the new struct dvb_device will be
|
|
* stored
|
|
* @template: Template used to create &pdvbdev;
|
|
* @priv: private data
|
|
* @type: type of the device: %DVB_DEVICE_SEC, %DVB_DEVICE_FRONTEND,
|
|
* %DVB_DEVICE_DEMUX, %DVB_DEVICE_DVR, %DVB_DEVICE_CA,
|
|
* %DVB_DEVICE_NET
|
|
* @demux_sink_pads: Number of demux outputs, to be used to create the TS
|
|
* outputs via the Media Controller.
|
|
*/
|
|
int dvb_register_device(struct dvb_adapter *adap,
|
|
struct dvb_device **pdvbdev,
|
|
const struct dvb_device *template,
|
|
void *priv,
|
|
int type,
|
|
int demux_sink_pads);
|
|
|
|
/**
|
|
* dvb_unregister_device - Unregisters a DVB device
|
|
*
|
|
* @dvbdev: pointer to struct dvb_device
|
|
*/
|
|
void dvb_unregister_device(struct dvb_device *dvbdev);
|
|
|
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
|
|
/**
|
|
* dvb_create_media_graph - Creates media graph for the Digital TV part of the
|
|
* device.
|
|
*
|
|
* @adap: pointer to struct dvb_adapter
|
|
* @create_rf_connector: if true, it creates the RF connector too
|
|
*
|
|
* This function checks all DVB-related functions at the media controller
|
|
* entities and creates the needed links for the media graph. It is
|
|
* capable of working with multiple tuners or multiple frontends, but it
|
|
* won't create links if the device has multiple tuners and multiple frontends
|
|
* or if the device has multiple muxes. In such case, the caller driver should
|
|
* manually create the remaining links.
|
|
*/
|
|
__must_check int dvb_create_media_graph(struct dvb_adapter *adap,
|
|
bool create_rf_connector);
|
|
|
|
static inline void dvb_register_media_controller(struct dvb_adapter *adap,
|
|
struct media_device *mdev)
|
|
{
|
|
adap->mdev = mdev;
|
|
}
|
|
|
|
static inline struct media_device
|
|
*dvb_get_media_controller(struct dvb_adapter *adap)
|
|
{
|
|
return adap->mdev;
|
|
}
|
|
#else
|
|
static inline
|
|
int dvb_create_media_graph(struct dvb_adapter *adap,
|
|
bool create_rf_connector)
|
|
{
|
|
return 0;
|
|
};
|
|
#define dvb_register_media_controller(a, b) {}
|
|
#define dvb_get_media_controller(a) NULL
|
|
#endif
|
|
|
|
int dvb_generic_open (struct inode *inode, struct file *file);
|
|
int dvb_generic_release (struct inode *inode, struct file *file);
|
|
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 become
|
|
generic_usercopy() someday... */
|
|
|
|
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; \
|
|
})
|
|
|
|
#define dvb_detach(FUNC) symbol_put_addr(FUNC)
|
|
|
|
#else
|
|
#define dvb_attach(FUNCTION, ARGS...) ({ \
|
|
FUNCTION(ARGS); \
|
|
})
|
|
|
|
#define dvb_detach(FUNC) {}
|
|
|
|
#endif
|
|
|
|
#endif /* #ifndef _DVBDEV_H_ */
|