linux/sound/pci/asihpi/hpioctl.c

// SPDX-License-Identifier: GPL-2.0-only
/*******************************************************************************
    AudioScience HPI driver
    Common Linux HPI ioctl and module probe/remove functions

    Copyright (C) 1997-2014  AudioScience Inc. <[email protected]>


*******************************************************************************/
#define SOURCEFILE_NAME …

#include "hpi_internal.h"
#include "hpi_version.h"
#include "hpimsginit.h"
#include "hpidebug.h"
#include "hpimsgx.h"
#include "hpioctl.h"
#include "hpicmn.h"

#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
#include <linux/uaccess.h>
#include <linux/pci.h>
#include <linux/stringify.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/nospec.h>

#ifdef MODULE_FIRMWARE
MODULE_FIRMWARE(…) …;
MODULE_FIRMWARE(…) …;
MODULE_FIRMWARE(…) …;
MODULE_FIRMWARE(…) …;
MODULE_FIRMWARE(…) …;
MODULE_FIRMWARE(…) …;
MODULE_FIRMWARE(…) …;
#endif

static int prealloc_stream_buf;
module_param(prealloc_stream_buf, int, 0444);
MODULE_PARM_DESC(…) …;

/* Allow the debug level to be changed after module load.
 E.g.   echo 2 > /sys/module/asihpi/parameters/hpiDebugLevel
*/
module_param(hpi_debug_level, int, 0644);
MODULE_PARM_DESC(…) …;

/* List of adapters found */
static struct hpi_adapter adapters[HPI_MAX_ADAPTERS];

/* Wrapper function to HPI_Message to enable dumping of the
   message and response types.
*/
static void hpi_send_recv_f(struct hpi_message *phm, struct hpi_response *phr,
	struct file *file)
{ … }

/* This is called from hpifunc.c functions, called by ALSA
 * (or other kernel process) In this case there is no file descriptor
 * available for the message cache code
 */
void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr)
{ … }

EXPORT_SYMBOL(…);
/* for radio-asihpi */

int asihpi_hpi_release(struct file *file)
{ … }

long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{ … }

static int asihpi_irq_count;

static irqreturn_t asihpi_isr(int irq, void *dev_id)
{ … }

static irqreturn_t asihpi_isr_thread(int irq, void *dev_id)
{ … }

int asihpi_adapter_probe(struct pci_dev *pci_dev,
			 const struct pci_device_id *pci_id)
{ … }

void asihpi_adapter_remove(struct pci_dev *pci_dev)
{ … }

void __init asihpi_init(void)
{ … }

void asihpi_exit(void)
{ … }