git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * dvb_ca.h: generic DVB functions for EN50221 CA interfaces | |
| 3 | * | |
| 4 | * Copyright (C) 2004 Andrew de Quincey | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public License | |
| 8 | * as published by the Free Software Foundation; either version 2.1 | |
| 9 | * of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef _DVB_CA_EN50221_H_ | |
| 22 | #define _DVB_CA_EN50221_H_ | |
| 23 | ||
| 24 | #include <linux/list.h> | |
| 25 | #include <linux/dvb/ca.h> | |
| 26 | ||
| 27 | #include "dvbdev.h" | |
| 28 | ||
| 29 | #define DVB_CA_EN50221_POLL_CAM_PRESENT 1 | |
| 30 | #define DVB_CA_EN50221_POLL_CAM_CHANGED 2 | |
| 31 | #define DVB_CA_EN50221_POLL_CAM_READY 4 | |
| 32 | ||
| 33 | #define DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE 1 | |
| 34 | #define DVB_CA_EN50221_FLAG_IRQ_FR 2 | |
| 35 | #define DVB_CA_EN50221_FLAG_IRQ_DA 4 | |
| 36 | ||
| 37 | #define DVB_CA_EN50221_CAMCHANGE_REMOVED 0 | |
| 38 | #define DVB_CA_EN50221_CAMCHANGE_INSERTED 1 | |
| 39 | ||
| 40 | ||
| 41 | ||
| 42 | /* Structure describing a CA interface */ | |
| 43 | struct dvb_ca_en50221 { | |
| 44 | ||
| 45 | /* the module owning this structure */ | |
| 46 | struct module* owner; | |
| 47 | ||
| d7e43844 MD |
48 | /* NOTE: the read_*, write_* and poll_slot_status functions will be |
| 49 | * called for different slots concurrently and need to use locks where | |
| 50 | * and if appropriate. There will be no concurrent access to one slot. | |
| 51 | */ | |
| 1da177e4 LT |
52 | |
| 53 | /* functions for accessing attribute memory on the CAM */ | |
| 54 | int (*read_attribute_mem)(struct dvb_ca_en50221* ca, int slot, int address); | |
| 55 | int (*write_attribute_mem)(struct dvb_ca_en50221* ca, int slot, int address, u8 value); | |
| 56 | ||
| 57 | /* functions for accessing the control interface on the CAM */ | |
| 58 | int (*read_cam_control)(struct dvb_ca_en50221* ca, int slot, u8 address); | |
| 59 | int (*write_cam_control)(struct dvb_ca_en50221* ca, int slot, u8 address, u8 value); | |
| 60 | ||
| 61 | /* Functions for controlling slots */ | |
| 62 | int (*slot_reset)(struct dvb_ca_en50221* ca, int slot); | |
| 63 | int (*slot_shutdown)(struct dvb_ca_en50221* ca, int slot); | |
| 64 | int (*slot_ts_enable)(struct dvb_ca_en50221* ca, int slot); | |
| 65 | ||
| 66 | /* | |
| 67 | * Poll slot status. | |
| 68 | * Only necessary if DVB_CA_FLAG_EN50221_IRQ_CAMCHANGE is not set | |
| 69 | */ | |
| 70 | int (*poll_slot_status)(struct dvb_ca_en50221* ca, int slot, int open); | |
| 71 | ||
| 72 | /* private data, used by caller */ | |
| 73 | void* data; | |
| 74 | ||
| 75 | /* Opaque data used by the dvb_ca core. Do not modify! */ | |
| 76 | void* private; | |
| 77 | }; | |
| 78 | ||
| 79 | ||
| 80 | ||
| 81 | ||
| 82 | /* ******************************************************************************** */ | |
| 83 | /* Functions for reporting IRQ events */ | |
| 84 | ||
| 85 | /** | |
| 86 | * A CAMCHANGE IRQ has occurred. | |
| 87 | * | |
| 88 | * @param ca CA instance. | |
| 89 | * @param slot Slot concerned. | |
| 90 | * @param change_type One of the DVB_CA_CAMCHANGE_* values | |
| 91 | */ | |
| 92 | void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221* pubca, int slot, int change_type); | |
| 93 | ||
| 94 | /** | |
| 95 | * A CAMREADY IRQ has occurred. | |
| 96 | * | |
| 97 | * @param ca CA instance. | |
| 98 | * @param slot Slot concerned. | |
| 99 | */ | |
| 100 | void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221* pubca, int slot); | |
| 101 | ||
| 102 | /** | |
| 103 | * An FR or a DA IRQ has occurred. | |
| 104 | * | |
| 105 | * @param ca CA instance. | |
| 106 | * @param slot Slot concerned. | |
| 107 | */ | |
| 108 | void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221* ca, int slot); | |
| 109 | ||
| 110 | ||
| 111 | ||
| 112 | /* ******************************************************************************** */ | |
| 113 | /* Initialisation/shutdown functions */ | |
| 114 | ||
| 115 | /** | |
| 116 | * Initialise a new DVB CA device. | |
| 117 | * | |
| 118 | * @param dvb_adapter DVB adapter to attach the new CA device to. | |
| 119 | * @param ca The dvb_ca instance. | |
| 120 | * @param flags Flags describing the CA device (DVB_CA_EN50221_FLAG_*). | |
| 121 | * @param slot_count Number of slots supported. | |
| 122 | * | |
| 123 | * @return 0 on success, nonzero on failure | |
| 124 | */ | |
| 125 | extern int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221* ca, int flags, int slot_count); | |
| 126 | ||
| 127 | /** | |
| 128 | * Release a DVB CA device. | |
| 129 | * | |
| 130 | * @param ca The associated dvb_ca instance. | |
| 131 | */ | |
| 132 | extern void dvb_ca_en50221_release(struct dvb_ca_en50221* ca); | |
| 133 | ||
| 134 | ||
| 135 | ||
| 136 | #endif |