linux/drivers/media/pci/saa7164/saa7164-cmd.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Driver for the NXP SAA7164 PCIe bridge
 *
 *  Copyright (c) 2010-2015 Steven Toth <[email protected]>
 */

#include <linux/wait.h>

#include "saa7164.h"

static int saa7164_cmd_alloc_seqno(struct saa7164_dev *dev)
{ … }

static void saa7164_cmd_free_seqno(struct saa7164_dev *dev, u8 seqno)
{ … }

static void saa7164_cmd_timeout_seqno(struct saa7164_dev *dev, u8 seqno)
{ … }

static u32 saa7164_cmd_timeout_get(struct saa7164_dev *dev, u8 seqno)
{ … }

/* Commands to the f/w get marshelled to/from this code then onto the PCI
 * -bus/c running buffer. */
int saa7164_irq_dequeue(struct saa7164_dev *dev)
{ … }

/* Commands to the f/w get marshelled to/from this code then onto the PCI
 * -bus/c running buffer. */
static int saa7164_cmd_dequeue(struct saa7164_dev *dev)
{ … }

static int saa7164_cmd_set(struct saa7164_dev *dev, struct tmComResInfo *msg,
			   void *buf)
{ … }

/* Wait for a signal event, without holding a mutex. Either return TIMEOUT if
 * the event never occurred, or SAA_OK if it was signaled during the wait.
 */
static int saa7164_cmd_wait(struct saa7164_dev *dev, u8 seqno)
{ … }

void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno)
{ … }

int saa7164_cmd_send(struct saa7164_dev *dev, u8 id, enum tmComResCmd command,
	u16 controlselector, u16 size, void *buf)
{ … }