Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Mauro Carvalho Chehab | d7061f8 | 2015-10-05 14:02:43 -0300 | [diff] [blame] | 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 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | struct dvb_ca_en50221 { |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 57 | struct module *owner; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 73 | int (*poll_slot_status)(struct dvb_ca_en50221 *ca, int slot, int open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 75 | void *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 77 | void *private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | }; |
| 79 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 80 | /* |
| 81 | * Functions for reporting IRQ events |
| 82 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
| 84 | /** |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 85 | * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | * |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 87 | * @pubca: CA instance. |
| 88 | * @slot: Slot concerned. |
| 89 | * @change_type: One of the DVB_CA_CAMCHANGE_* values |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | */ |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 91 | void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221 *pubca, int slot, |
| 92 | int change_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | |
| 94 | /** |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 95 | * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | * |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 97 | * @pubca: CA instance. |
| 98 | * @slot: Slot concerned. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | */ |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 100 | void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | |
| 102 | /** |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 103 | * dvb_ca_en50221_frda_irq - An FR or a DA IRQ has occurred. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | * |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 105 | * @ca: CA instance. |
| 106 | * @slot: Slot concerned. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | */ |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 108 | void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *ca, int slot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 110 | /* |
| 111 | * Initialisation/shutdown functions |
| 112 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
| 114 | /** |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 115 | * dvb_ca_en50221_init - Initialise a new DVB CA device. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | * |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | * |
| 122 | * @return 0 on success, nonzero on failure |
| 123 | */ |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 124 | extern int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, |
| 125 | struct dvb_ca_en50221 *ca, int flags, |
| 126 | int slot_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
| 128 | /** |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 129 | * dvb_ca_en50221_release - Release a DVB CA device. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | * |
Mauro Carvalho Chehab | fbefb1a | 2015-08-22 07:09:29 -0300 | [diff] [blame] | 131 | * @ca: The associated dvb_ca instance. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | */ |
Mauro Carvalho Chehab | bdbbf13 | 2015-10-05 14:04:54 -0300 | [diff] [blame] | 133 | extern void dvb_ca_en50221_release(struct dvb_ca_en50221 *ca); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
| 135 | #endif |