3d6c2bc08a
just like the V4L2 core, move the DVB core to drivers/media, as the intention is to get rid of both "video" and "dvb" directories. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/*
|
|
* dvb_ca.h: generic DVB functions for EN50221 CA interfaces
|
|
*
|
|
* Copyright (C) 2004 Andrew de Quincey
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General 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 _DVB_CA_EN50221_H_
|
|
#define _DVB_CA_EN50221_H_
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/dvb/ca.h>
|
|
|
|
#include "dvbdev.h"
|
|
|
|
#define DVB_CA_EN50221_POLL_CAM_PRESENT 1
|
|
#define DVB_CA_EN50221_POLL_CAM_CHANGED 2
|
|
#define DVB_CA_EN50221_POLL_CAM_READY 4
|
|
|
|
#define DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE 1
|
|
#define DVB_CA_EN50221_FLAG_IRQ_FR 2
|
|
#define DVB_CA_EN50221_FLAG_IRQ_DA 4
|
|
|
|
#define DVB_CA_EN50221_CAMCHANGE_REMOVED 0
|
|
#define DVB_CA_EN50221_CAMCHANGE_INSERTED 1
|
|
|
|
|
|
|
|
/* Structure describing a CA interface */
|
|
struct dvb_ca_en50221 {
|
|
|
|
/* the module owning this structure */
|
|
struct module* owner;
|
|
|
|
/* NOTE: the read_*, write_* and poll_slot_status functions will be
|
|
* called for different slots concurrently and need to use locks where
|
|
* and if appropriate. There will be no concurrent access to one slot.
|
|
*/
|
|
|
|
/* functions for accessing attribute memory on the CAM */
|
|
int (*read_attribute_mem)(struct dvb_ca_en50221* ca, int slot, int address);
|
|
int (*write_attribute_mem)(struct dvb_ca_en50221* ca, int slot, int address, u8 value);
|
|
|
|
/* functions for accessing the control interface on the CAM */
|
|
int (*read_cam_control)(struct dvb_ca_en50221* ca, int slot, u8 address);
|
|
int (*write_cam_control)(struct dvb_ca_en50221* ca, int slot, u8 address, u8 value);
|
|
|
|
/* Functions for controlling slots */
|
|
int (*slot_reset)(struct dvb_ca_en50221* ca, int slot);
|
|
int (*slot_shutdown)(struct dvb_ca_en50221* ca, int slot);
|
|
int (*slot_ts_enable)(struct dvb_ca_en50221* ca, int slot);
|
|
|
|
/*
|
|
* Poll slot status.
|
|
* Only necessary if DVB_CA_FLAG_EN50221_IRQ_CAMCHANGE is not set
|
|
*/
|
|
int (*poll_slot_status)(struct dvb_ca_en50221* ca, int slot, int open);
|
|
|
|
/* private data, used by caller */
|
|
void* data;
|
|
|
|
/* Opaque data used by the dvb_ca core. Do not modify! */
|
|
void* private;
|
|
};
|
|
|
|
|
|
|
|
|
|
/* ******************************************************************************** */
|
|
/* Functions for reporting IRQ events */
|
|
|
|
/**
|
|
* A CAMCHANGE IRQ has occurred.
|
|
*
|
|
* @param ca CA instance.
|
|
* @param slot Slot concerned.
|
|
* @param change_type One of the DVB_CA_CAMCHANGE_* values
|
|
*/
|
|
void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221* pubca, int slot, int change_type);
|
|
|
|
/**
|
|
* A CAMREADY IRQ has occurred.
|
|
*
|
|
* @param ca CA instance.
|
|
* @param slot Slot concerned.
|
|
*/
|
|
void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221* pubca, int slot);
|
|
|
|
/**
|
|
* An FR or a DA IRQ has occurred.
|
|
*
|
|
* @param ca CA instance.
|
|
* @param slot Slot concerned.
|
|
*/
|
|
void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221* ca, int slot);
|
|
|
|
|
|
|
|
/* ******************************************************************************** */
|
|
/* Initialisation/shutdown functions */
|
|
|
|
/**
|
|
* Initialise a new DVB CA device.
|
|
*
|
|
* @param dvb_adapter DVB adapter to attach the new CA device to.
|
|
* @param ca The dvb_ca instance.
|
|
* @param flags Flags describing the CA device (DVB_CA_EN50221_FLAG_*).
|
|
* @param slot_count Number of slots supported.
|
|
*
|
|
* @return 0 on success, nonzero on failure
|
|
*/
|
|
extern int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221* ca, int flags, int slot_count);
|
|
|
|
/**
|
|
* Release a DVB CA device.
|
|
*
|
|
* @param ca The associated dvb_ca instance.
|
|
*/
|
|
extern void dvb_ca_en50221_release(struct dvb_ca_en50221* ca);
|
|
|
|
|
|
|
|
#endif
|