From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- include/media/dvb_ca_en50221.h | 142 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 include/media/dvb_ca_en50221.h (limited to 'include/media/dvb_ca_en50221.h') diff --git a/include/media/dvb_ca_en50221.h b/include/media/dvb_ca_en50221.h new file mode 100644 index 000000000..a1c014b0a --- /dev/null +++ b/include/media/dvb_ca_en50221.h @@ -0,0 +1,142 @@ +/* + * 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. + */ + +#ifndef _DVB_CA_EN50221_H_ +#define _DVB_CA_EN50221_H_ + +#include +#include + +#include + +#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 + +/** + * struct dvb_ca_en50221- Structure describing a CA interface + * + * @owner: the module owning this structure + * @read_attribute_mem: function for reading attribute memory on the CAM + * @write_attribute_mem: function for writing attribute memory on the CAM + * @read_cam_control: function for reading the control interface on the CAM + * @write_cam_control: function for reading the control interface on the CAM + * @read_data: function for reading data (block mode) + * @write_data: function for writing data (block mode) + * @slot_reset: function to reset the CAM slot + * @slot_shutdown: function to shutdown a CAM slot + * @slot_ts_enable: function to enable the Transport Stream on a CAM slot + * @poll_slot_status: function to poll slot status. Only necessary if + * DVB_CA_FLAG_EN50221_IRQ_CAMCHANGE is not set. + * @data: private data, used by caller. + * @private: Opaque data used by the dvb_ca core. Do not modify! + * + * 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. + */ +struct dvb_ca_en50221 { + struct module *owner; + + 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); + + 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); + + int (*read_data)(struct dvb_ca_en50221 *ca, + int slot, u8 *ebuf, int ecount); + int (*write_data)(struct dvb_ca_en50221 *ca, + int slot, u8 *ebuf, int ecount); + + 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); + + int (*poll_slot_status)(struct dvb_ca_en50221 *ca, int slot, int open); + + void *data; + + void *private; +}; + +/* + * Functions for reporting IRQ events + */ + +/** + * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred. + * + * @pubca: CA instance. + * @slot: Slot concerned. + * @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); + +/** + * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred. + * + * @pubca: CA instance. + * @slot: Slot concerned. + */ +void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot); + +/** + * dvb_ca_en50221_frda_irq - An FR or a DA IRQ has occurred. + * + * @ca: CA instance. + * @slot: Slot concerned. + */ +void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *ca, int slot); + +/* + * Initialisation/shutdown functions + */ + +/** + * dvb_ca_en50221_init - Initialise a new DVB CA device. + * + * @dvb_adapter: DVB adapter to attach the new CA device to. + * @ca: The dvb_ca instance. + * @flags: Flags describing the CA device (DVB_CA_EN50221_FLAG_*). + * @slot_count: Number of slots supported. + * + * @return 0 on success, nonzero on failure + */ +int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, + struct dvb_ca_en50221 *ca, int flags, + int slot_count); + +/** + * dvb_ca_en50221_release - Release a DVB CA device. + * + * @ca: The associated dvb_ca instance. + */ +void dvb_ca_en50221_release(struct dvb_ca_en50221 *ca); + +#endif -- cgit v1.2.3