1 files changed, 136 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.h b/drivers/media/dvb/dvb-core/dvb_ca_en50221.h
new file mode 100644
index 00000000000..7df2e141187
--- /dev/null
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.h
@@ -0,0 +1,136 @@
+/*
+ * 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.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef _DVB_CA_EN50221_H_
+#define _DVB_CA_EN50221_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
+
+
+
+/* Structure describing a CA interface */
+struct dvb_ca_en50221 {
+
+        /* 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_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);
+
+        /* functions for accessing the control interface on the CAM */
+        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);
+
+        /* Functions for controlling slots */
+        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);
+
+        /*
+        * Poll slot status.
+        * Only necessary if DVB_CA_FLAG_EN50221_IRQ_CAMCHANGE is not set
+        */
+        int (*poll_slot_status)(struct dvb_ca_en50221* 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_camchange_irq(struct dvb_ca_en50221* pubca, int slot, int change_type);
+
+/**
+ * A CAMREADY IRQ has occurred.
+ *
+ * @param ca CA instance.
+ * @param slot Slot concerned.
+ */
+void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221* pubca, int slot);
+
+/**
+ * An FR or a DA IRQ has occurred.
+ *
+ * @param ca CA instance.
+ * @param slot Slot concerned.
+ */
+void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221* 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_init(struct dvb_adapter *dvb_adapter, struct dvb_ca_en50221* ca, int flags, int slot_count);
+
+/**
+ * Release a DVB CA device.
+ *
+ * @param ca The associated dvb_ca instance.
+ */
+extern void dvb_ca_en50221_release(struct dvb_ca_en50221* ca);
+
+
+
+#endif