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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. | |
1da177e4 LT |
15 | */ |
16 | ||
17 | #ifndef _DVB_CA_EN50221_H_ | |
18 | #define _DVB_CA_EN50221_H_ | |
19 | ||
20 | #include <linux/list.h> | |
21 | #include <linux/dvb/ca.h> | |
22 | ||
23 | #include "dvbdev.h" | |
24 | ||
25 | #define DVB_CA_EN50221_POLL_CAM_PRESENT 1 | |
26 | #define DVB_CA_EN50221_POLL_CAM_CHANGED 2 | |
27 | #define DVB_CA_EN50221_POLL_CAM_READY 4 | |
28 | ||
29 | #define DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE 1 | |
30 | #define DVB_CA_EN50221_FLAG_IRQ_FR 2 | |
31 | #define DVB_CA_EN50221_FLAG_IRQ_DA 4 | |
32 | ||
33 | #define DVB_CA_EN50221_CAMCHANGE_REMOVED 0 | |
34 | #define DVB_CA_EN50221_CAMCHANGE_INSERTED 1 | |
35 | ||
d7061f83 MCC |
36 | /** |
37 | * struct dvb_ca_en50221- Structure describing a CA interface | |
38 | * | |
39 | * @owner: the module owning this structure | |
40 | * @read_attribute_mem: function for reading attribute memory on the CAM | |
41 | * @write_attribute_mem: function for writing attribute memory on the CAM | |
42 | * @read_cam_control: function for reading the control interface on the CAM | |
43 | * @write_cam_control: function for reading the control interface on the CAM | |
44 | * @slot_reset: function to reset the CAM slot | |
45 | * @slot_shutdown: function to shutdown a CAM slot | |
46 | * @slot_ts_enable: function to enable the Transport Stream on a CAM slot | |
47 | * @poll_slot_status: function to poll slot status. Only necessary if | |
48 | * DVB_CA_FLAG_EN50221_IRQ_CAMCHANGE is not set. | |
49 | * @data: private data, used by caller. | |
50 | * @private: Opaque data used by the dvb_ca core. Do not modify! | |
51 | * | |
52 | * NOTE: the read_*, write_* and poll_slot_status functions will be | |
53 | * called for different slots concurrently and need to use locks where | |
54 | * and if appropriate. There will be no concurrent access to one slot. | |
55 | */ | |
1da177e4 | 56 | struct dvb_ca_en50221 { |
bdbbf13e | 57 | struct module *owner; |
1da177e4 | 58 | |
bdbbf13e MCC |
59 | int (*read_attribute_mem)(struct dvb_ca_en50221 *ca, |
60 | int slot, int address); | |
61 | int (*write_attribute_mem)(struct dvb_ca_en50221 *ca, | |
62 | int slot, int address, u8 value); | |
1da177e4 | 63 | |
bdbbf13e MCC |
64 | int (*read_cam_control)(struct dvb_ca_en50221 *ca, |
65 | int slot, u8 address); | |
66 | int (*write_cam_control)(struct dvb_ca_en50221 *ca, | |
67 | int slot, u8 address, u8 value); | |
1da177e4 | 68 | |
bdbbf13e MCC |
69 | int (*slot_reset)(struct dvb_ca_en50221 *ca, int slot); |
70 | int (*slot_shutdown)(struct dvb_ca_en50221 *ca, int slot); | |
71 | int (*slot_ts_enable)(struct dvb_ca_en50221 *ca, int slot); | |
1da177e4 | 72 | |
bdbbf13e | 73 | int (*poll_slot_status)(struct dvb_ca_en50221 *ca, int slot, int open); |
1da177e4 | 74 | |
bdbbf13e | 75 | void *data; |
1da177e4 | 76 | |
bdbbf13e | 77 | void *private; |
1da177e4 LT |
78 | }; |
79 | ||
bdbbf13e MCC |
80 | /* |
81 | * Functions for reporting IRQ events | |
82 | */ | |
1da177e4 LT |
83 | |
84 | /** | |
fbefb1a8 | 85 | * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred. |
1da177e4 | 86 | * |
fbefb1a8 MCC |
87 | * @pubca: CA instance. |
88 | * @slot: Slot concerned. | |
89 | * @change_type: One of the DVB_CA_CAMCHANGE_* values | |
1da177e4 | 90 | */ |
bdbbf13e MCC |
91 | void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221 *pubca, int slot, |
92 | int change_type); | |
1da177e4 LT |
93 | |
94 | /** | |
fbefb1a8 | 95 | * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred. |
1da177e4 | 96 | * |
fbefb1a8 MCC |
97 | * @pubca: CA instance. |
98 | * @slot: Slot concerned. | |
1da177e4 | 99 | */ |
bdbbf13e | 100 | void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot); |
1da177e4 LT |
101 | |
102 | /** | |
fbefb1a8 | 103 | * dvb_ca_en50221_frda_irq - An FR or a DA IRQ has occurred. |
1da177e4 | 104 | * |
fbefb1a8 MCC |
105 | * @ca: CA instance. |
106 | * @slot: Slot concerned. | |
1da177e4 | 107 | */ |
bdbbf13e | 108 | void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *ca, int slot); |
1da177e4 | 109 | |
bdbbf13e MCC |
110 | /* |
111 | * Initialisation/shutdown functions | |
112 | */ | |
1da177e4 LT |
113 | |
114 | /** | |
fbefb1a8 | 115 | * dvb_ca_en50221_init - Initialise a new DVB CA device. |
1da177e4 | 116 | * |
fbefb1a8 MCC |
117 | * @dvb_adapter: DVB adapter to attach the new CA device to. |
118 | * @ca: The dvb_ca instance. | |
119 | * @flags: Flags describing the CA device (DVB_CA_EN50221_FLAG_*). | |
120 | * @slot_count: Number of slots supported. | |
1da177e4 LT |
121 | * |
122 | * @return 0 on success, nonzero on failure | |
123 | */ | |
bdbbf13e MCC |
124 | extern int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, |
125 | struct dvb_ca_en50221 *ca, int flags, | |
126 | int slot_count); | |
1da177e4 LT |
127 | |
128 | /** | |
fbefb1a8 | 129 | * dvb_ca_en50221_release - Release a DVB CA device. |
1da177e4 | 130 | * |
fbefb1a8 | 131 | * @ca: The associated dvb_ca instance. |
1da177e4 | 132 | */ |
bdbbf13e | 133 | extern void dvb_ca_en50221_release(struct dvb_ca_en50221 *ca); |
1da177e4 LT |
134 | |
135 | #endif |