linux/sound/pci/asihpi/hpios.c

// SPDX-License-Identifier: GPL-2.0-only
/******************************************************************************

    AudioScience HPI driver
    Copyright (C) 1997-2012  AudioScience Inc. <[email protected]>


HPI Operating System function implementation for Linux

(C) Copyright AudioScience Inc. 1997-2003
******************************************************************************/
#define SOURCEFILE_NAME …
#include "hpi_internal.h"
#include "hpidebug.h"
#include <linux/delay.h>
#include <linux/sched.h>

void hpios_delay_micro_seconds(u32 num_micro_sec)
{ … }

/** Allocate an area of locked memory for bus master DMA operations.

If allocation fails, return 1, and *pMemArea.size = 0
*/
u16 hpios_locked_mem_alloc(struct consistent_dma_area *p_mem_area, u32 size,
	struct pci_dev *pdev)
{ … }

u16 hpios_locked_mem_free(struct consistent_dma_area *p_mem_area)
{ … }