linux/drivers/staging/media/av7110/av7110_ca.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * driver for the SAA7146 based AV110 cards
 * - CA and CI stuff
 *
 * Copyright (C) 1999-2002 Ralph  Metzler
 *                       & Marcus Metzler for convergence integrated media GmbH
 *
 * originally based on code by:
 * Copyright (C) 1998,1999 Christian Theiss <[email protected]>
 *
 * the project's page is at https://linuxtv.org
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/timer.h>
#include <linux/poll.h>
#include <linux/gfp.h>

#include "av7110.h"
#include "av7110_hw.h"
#include "av7110_ca.h"

void CI_handle(struct av7110 *av7110, u8 *data, u16 len)
{ … }

void ci_get_data(struct dvb_ringbuffer *cibuf, u8 *data, int len)
{ … }

/******************************************************************************
 * CI link layer file ops
 ******************************************************************************/

static int ci_ll_init(struct dvb_ringbuffer *cirbuf, struct dvb_ringbuffer *ciwbuf, int size)
{ … }

static void ci_ll_flush(struct dvb_ringbuffer *cirbuf, struct dvb_ringbuffer *ciwbuf)
{ … }

static void ci_ll_release(struct dvb_ringbuffer *cirbuf, struct dvb_ringbuffer *ciwbuf)
{ … }

static int ci_ll_reset(struct dvb_ringbuffer *cibuf, struct file *file,
		       int slots, struct ca_slot_info *slot)
{ … }

static ssize_t ci_ll_write(struct dvb_ringbuffer *cibuf, struct file *file,
			   const char __user *buf, size_t count, loff_t *ppos)
{ … }

static ssize_t ci_ll_read(struct dvb_ringbuffer *cibuf, struct file *file,
			  char __user *buf, size_t count, loff_t *ppos)
{ … }

static int dvb_ca_open(struct inode *inode, struct file *file)
{ … }

static __poll_t dvb_ca_poll(struct file *file, poll_table *wait)
{ … }

static int dvb_ca_ioctl(struct file *file, unsigned int cmd, void *parg)
{ … }

static ssize_t dvb_ca_write(struct file *file, const char __user *buf,
			    size_t count, loff_t *ppos)
{ … }

static ssize_t dvb_ca_read(struct file *file, char __user *buf,
			   size_t count, loff_t *ppos)
{ … }

static const struct file_operations dvb_ca_fops = …;

static struct dvb_device dvbdev_ca = …;

int av7110_ca_register(struct av7110 *av7110)
{ … }

void av7110_ca_unregister(struct av7110 *av7110)
{ … }

int av7110_ca_init(struct av7110 *av7110)
{ … }

void av7110_ca_exit(struct av7110 *av7110)
{ … }