| /* |
| * dvb_ca_cimax.h: generic DVB functions for EN50221 CA CIMAX interfaces |
| * |
| * 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. |
| */ |
| |
| #ifndef _DVB_CA_EN50221_CIMAX_H_ |
| #define _DVB_CA_EN50221_CIMAX_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 |
| |
| #define DVB_CA_EN50221_CAP_IRQ 1 |
| |
| /* Structure describing a CA interface */ |
| struct dvb_ca_en50221_cimax { |
| |
| /* 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_cis)(struct dvb_ca_en50221_cimax *ca, |
| int slot, u8 *buf, int size); |
| int (*write_cor)(struct dvb_ca_en50221_cimax *ca, |
| int slot, int address, u8 *buf); |
| /*return the final size or -1 for error*/ |
| int (*negotiate)(struct dvb_ca_en50221_cimax *ca, int slot, int size); |
| |
| /* functions for accessing the control interface on the CAM */ |
| int (*read_lpdu)(struct dvb_ca_en50221_cimax *ca, |
| int slot, u8 *buf, int size); |
| int (*write_lpdu)(struct dvb_ca_en50221_cimax *ca, |
| int slot, u8 *buf, int size); |
| |
| int (*cam_reset)(struct dvb_ca_en50221_cimax *ca, int slot); |
| int (*read_cam_status)(struct dvb_ca_en50221_cimax *ca, int slot); |
| int (*get_capbility)(struct dvb_ca_en50221_cimax *ca, int slot); |
| |
| /* Functions for controlling slots */ |
| int (*slot_reset)(struct dvb_ca_en50221_cimax *ca, int slot); |
| int (*slot_shutdown)(struct dvb_ca_en50221_cimax *ca, int slot); |
| int (*slot_ts_enable)(struct dvb_ca_en50221_cimax *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_cimax *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_cimax_camchange_irq(struct dvb_ca_en50221_cimax *pubca, |
| int slot, int change_type); |
| |
| /** |
| * A CAMREADY IRQ has occurred. |
| * |
| * @param ca CA instance. |
| * @param slot Slot concerned. |
| */ |
| void dvb_ca_en50221_cimax_camready_irq(struct dvb_ca_en50221_cimax *pubca, |
| int slot); |
| |
| /** |
| * An FR or a DA IRQ has occurred. |
| * |
| * @param ca CA instance. |
| * @param slot Slot concerned. |
| */ |
| void dvb_ca_en50221_cimax_frda_irq(struct dvb_ca_en50221_cimax *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_cimax_init(struct dvb_adapter *dvb_adapter, |
| struct dvb_ca_en50221_cimax *ca, int flags, int slot_count); |
| |
| /** |
| * Release a DVB CA device. |
| * |
| * @param ca The associated dvb_ca instance. |
| */ |
| extern void dvb_ca_en50221_cimax_release(struct dvb_ca_en50221_cimax *ca); |
| |
| |
| |
| #endif |