linux/drivers/media/usb/pvrusb2/pvrusb2-context.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *
 *  Copyright (C) 2005 Mike Isely <[email protected]>
 */

#include "pvrusb2-context.h"
#include "pvrusb2-io.h"
#include "pvrusb2-ioread.h"
#include "pvrusb2-hdw.h"
#include "pvrusb2-debug.h"
#include <linux/wait.h>
#include <linux/kthread.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/slab.h>

static struct pvr2_context *pvr2_context_exist_first;
static struct pvr2_context *pvr2_context_exist_last;
static struct pvr2_context *pvr2_context_notify_first;
static struct pvr2_context *pvr2_context_notify_last;
static DEFINE_MUTEX(pvr2_context_mutex);
static DECLARE_WAIT_QUEUE_HEAD(pvr2_context_sync_data);
static DECLARE_WAIT_QUEUE_HEAD(pvr2_context_cleanup_data);
static int pvr2_context_cleanup_flag;
static int pvr2_context_cleaned_flag;
static struct task_struct *pvr2_context_thread_ptr;


static void pvr2_context_set_notify(struct pvr2_context *mp, int fl)
{ … }


static void pvr2_context_destroy(struct pvr2_context *mp)
{ … }


static void pvr2_context_notify(void *ptr)
{ … }


static void pvr2_context_check(struct pvr2_context *mp)
{ … }


static int pvr2_context_shutok(void)
{ … }


static int pvr2_context_thread_func(void *foo)
{ … }


int pvr2_context_global_init(void)
{ … }


void pvr2_context_global_done(void)
{ … }


struct pvr2_context *pvr2_context_create(
	struct usb_interface *intf,
	const struct usb_device_id *devid,
	void (*setup_func)(struct pvr2_context *))
{ … }


static void pvr2_context_reset_input_limits(struct pvr2_context *mp)
{ … }


static void pvr2_context_enter(struct pvr2_context *mp)
{ … }


static void pvr2_context_exit(struct pvr2_context *mp)
{ … }


void pvr2_context_disconnect(struct pvr2_context *mp)
{ … }


void pvr2_channel_init(struct pvr2_channel *cp,struct pvr2_context *mp)
{ … }


static void pvr2_channel_disclaim_stream(struct pvr2_channel *cp)
{ … }


void pvr2_channel_done(struct pvr2_channel *cp)
{ … }


int pvr2_channel_limit_inputs(struct pvr2_channel *cp,unsigned int cmsk)
{ … }


unsigned int pvr2_channel_get_limited_inputs(struct pvr2_channel *cp)
{ … }


int pvr2_channel_claim_stream(struct pvr2_channel *cp,
			      struct pvr2_context_stream *sp)
{ … }


// This is the marker for the real beginning of a legitimate mpeg2 stream.
static char stream_sync_key[] = …;

struct pvr2_ioread *pvr2_channel_create_mpeg_stream(
	struct pvr2_context_stream *sp)
{ … }