/*
* Device management routines
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
*
*/
-#include <sound/driver.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/errno.h>
*/
int snd_device_free(struct snd_card *card, void *device_data)
{
- struct list_head *list;
struct snd_device *dev;
snd_assert(card != NULL, return -ENXIO);
snd_assert(device_data != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
+ list_for_each_entry(dev, &card->devices, list) {
if (dev->device_data != device_data)
continue;
/* unlink */
*/
int snd_device_disconnect(struct snd_card *card, void *device_data)
{
- struct list_head *list;
struct snd_device *dev;
snd_assert(card != NULL, return -ENXIO);
snd_assert(device_data != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
+ list_for_each_entry(dev, &card->devices, list) {
if (dev->device_data != device_data)
continue;
if (dev->state == SNDRV_DEV_REGISTERED &&
*/
int snd_device_register(struct snd_card *card, void *device_data)
{
- struct list_head *list;
struct snd_device *dev;
int err;
snd_assert(card != NULL, return -ENXIO);
snd_assert(device_data != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
+ list_for_each_entry(dev, &card->devices, list) {
if (dev->device_data != device_data)
continue;
if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
*/
int snd_device_register_all(struct snd_card *card)
{
- struct list_head *list;
struct snd_device *dev;
int err;
snd_assert(card != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
+ list_for_each_entry(dev, &card->devices, list) {
if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
if ((err = dev->ops->dev_register(dev)) < 0)
return err;
int snd_device_disconnect_all(struct snd_card *card)
{
struct snd_device *dev;
- struct list_head *list;
int err = 0;
snd_assert(card != NULL, return -ENXIO);
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
+ list_for_each_entry(dev, &card->devices, list) {
if (snd_device_disconnect(card, dev->device_data) < 0)
err = -ENXIO;
}
int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd)
{
struct snd_device *dev;
- struct list_head *list;
int err;
unsigned int range_low, range_high;
range_low = cmd * SNDRV_DEV_TYPE_RANGE_SIZE;
range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1;
__again:
- list_for_each(list, &card->devices) {
- dev = snd_device(list);
+ list_for_each_entry(dev, &card->devices, list) {
if (dev->type >= range_low && dev->type <= range_high) {
if ((err = snd_device_free(card, dev->device_data)) < 0)
return err;