linux/drivers/media/pci/ngene/ngene-dvb.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ngene-dvb.c: nGene PCIe bridge driver - DVB functions
 *
 * Copyright (C) 2005-2007 Micronas
 *
 * Copyright (C) 2008-2009 Ralph Metzler <[email protected]>
 *                         Modifications for new nGene firmware,
 *                         support for EEPROM-copying,
 *                         support for new dual DVB-S2 card prototype
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/io.h>
#include <asm/div64.h>
#include <linux/pci.h>
#include <linux/timer.h>
#include <linux/byteorder/generic.h>
#include <linux/firmware.h>
#include <linux/vmalloc.h>

#include "ngene.h"

static int ci_tsfix = …;
module_param(ci_tsfix, int, 0444);
MODULE_PARM_DESC(…) …;

/****************************************************************************/
/* COMMAND API interface ****************************************************/
/****************************************************************************/

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

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

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

static const struct file_operations ci_fops = …;

struct dvb_device ngene_dvbdev_ci = …;


/****************************************************************************/
/* DVB functions and API interface ******************************************/
/****************************************************************************/

static void swap_buffer(u32 *p, u32 len)
{ … }

/* start of filler packet */
static u8 fill_ts[] = …;

static int tsin_find_offset(void *buf, u32 len)
{ … }

static inline void tsin_copy_stripped(struct ngene *dev, void *buf)
{ … }

void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
{ … }

void *tsout_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
{ … }



int ngene_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{ … }

int ngene_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{ … }

int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
			    int (*start_feed)(struct dvb_demux_feed *),
			    int (*stop_feed)(struct dvb_demux_feed *),
			    void *priv)
{ … }

int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
			       struct dvb_demux *dvbdemux,
			       struct dmx_frontend *hw_frontend,
			       struct dmx_frontend *mem_frontend,
			       struct dvb_adapter *dvb_adapter)
{ … }