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-rw-r--r--include/sound/core.h28
-rw-r--r--sound/core/device.c66
-rw-r--r--sound/core/init.c14
3 files changed, 50 insertions, 58 deletions
diff --git a/include/sound/core.h b/include/sound/core.h
index 9c11873..f1e41f4 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -46,24 +46,22 @@ struct completion;
/* device allocation stuff */
-#define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000
-
+/* type of the object used in snd_device_*()
+ * this also defines the calling order
+ */
enum snd_device_type {
- SNDRV_DEV_TOPLEVEL = 0,
- SNDRV_DEV_CONTROL = 1,
- SNDRV_DEV_LOWLEVEL_PRE = 2,
- SNDRV_DEV_LOWLEVEL_NORMAL = 0x1000,
+ SNDRV_DEV_LOWLEVEL,
+ SNDRV_DEV_CONTROL,
+ SNDRV_DEV_INFO,
+ SNDRV_DEV_BUS,
+ SNDRV_DEV_CODEC,
SNDRV_DEV_PCM,
+ SNDRV_DEV_COMPRESS,
SNDRV_DEV_RAWMIDI,
SNDRV_DEV_TIMER,
SNDRV_DEV_SEQUENCER,
SNDRV_DEV_HWDEP,
- SNDRV_DEV_INFO,
- SNDRV_DEV_BUS,
- SNDRV_DEV_CODEC,
SNDRV_DEV_JACK,
- SNDRV_DEV_COMPRESS,
- SNDRV_DEV_LOWLEVEL = 0x2000,
};
enum snd_device_state {
@@ -72,12 +70,6 @@ enum snd_device_state {
SNDRV_DEV_DISCONNECTED,
};
-enum snd_device_cmd {
- SNDRV_DEV_CMD_PRE,
- SNDRV_DEV_CMD_NORMAL,
- SNDRV_DEV_CMD_POST,
-};
-
struct snd_device;
struct snd_device_ops {
@@ -320,7 +312,7 @@ int snd_device_register_all(struct snd_card *card);
int snd_device_disconnect(struct snd_card *card, void *device_data);
int snd_device_disconnect_all(struct snd_card *card);
int snd_device_free(struct snd_card *card, void *device_data);
-int snd_device_free_all(struct snd_card *card, enum snd_device_cmd cmd);
+int snd_device_free_all(struct snd_card *card);
/* isadma.c */
diff --git a/sound/core/device.c b/sound/core/device.c
index 856bfdc..53291ff 100644
--- a/sound/core/device.c
+++ b/sound/core/device.c
@@ -45,6 +45,7 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type,
void *device_data, struct snd_device_ops *ops)
{
struct snd_device *dev;
+ struct list_head *p;
if (snd_BUG_ON(!card || !device_data || !ops))
return -ENXIO;
@@ -53,17 +54,36 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type,
dev_err(card->dev, "Cannot allocate device, type=%d\n", type);
return -ENOMEM;
}
+ INIT_LIST_HEAD(&dev->list);
dev->card = card;
dev->type = type;
dev->state = SNDRV_DEV_BUILD;
dev->device_data = device_data;
dev->ops = ops;
- list_add(&dev->list, &card->devices); /* add to the head of list */
+
+ /* insert the entry in an incrementally sorted list */
+ list_for_each_prev(p, &card->devices) {
+ struct snd_device *pdev = list_entry(p, struct snd_device, list);
+ if ((unsigned int)pdev->type <= (unsigned int)type)
+ break;
+ }
+
+ list_add(&dev->list, p);
return 0;
}
-
EXPORT_SYMBOL(snd_device_new);
+static struct snd_device *look_for_dev(struct snd_card *card, void *device_data)
+{
+ struct snd_device *dev;
+
+ list_for_each_entry(dev, &card->devices, list)
+ if (dev->device_data == device_data)
+ return dev;
+
+ return NULL;
+}
+
/**
* snd_device_free - release the device from the card
* @card: the card instance
@@ -82,9 +102,8 @@ int snd_device_free(struct snd_card *card, void *device_data)
if (snd_BUG_ON(!card || !device_data))
return -ENXIO;
- list_for_each_entry(dev, &card->devices, list) {
- if (dev->device_data != device_data)
- continue;
+ dev = look_for_dev(card, device_data);
+ if (dev) {
/* unlink */
list_del(&dev->list);
if (dev->state == SNDRV_DEV_REGISTERED &&
@@ -103,7 +122,6 @@ int snd_device_free(struct snd_card *card, void *device_data)
device_data, __builtin_return_address(0));
return -ENXIO;
}
-
EXPORT_SYMBOL(snd_device_free);
/**
@@ -125,9 +143,8 @@ int snd_device_disconnect(struct snd_card *card, void *device_data)
if (snd_BUG_ON(!card || !device_data))
return -ENXIO;
- list_for_each_entry(dev, &card->devices, list) {
- if (dev->device_data != device_data)
- continue;
+ dev = look_for_dev(card, device_data);
+ if (dev) {
if (dev->state == SNDRV_DEV_REGISTERED &&
dev->ops->dev_disconnect) {
if (dev->ops->dev_disconnect(dev))
@@ -162,9 +179,8 @@ int snd_device_register(struct snd_card *card, void *device_data)
if (snd_BUG_ON(!card || !device_data))
return -ENXIO;
- list_for_each_entry(dev, &card->devices, list) {
- if (dev->device_data != device_data)
- continue;
+ dev = look_for_dev(card, device_data);
+ if (dev) {
if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
if ((err = dev->ops->dev_register(dev)) < 0)
return err;
@@ -177,7 +193,6 @@ int snd_device_register(struct snd_card *card, void *device_data)
snd_BUG();
return -ENXIO;
}
-
EXPORT_SYMBOL(snd_device_register);
/*
@@ -212,7 +227,7 @@ int snd_device_disconnect_all(struct snd_card *card)
if (snd_BUG_ON(!card))
return -ENXIO;
- list_for_each_entry(dev, &card->devices, list) {
+ list_for_each_entry_reverse(dev, &card->devices, list) {
if (snd_device_disconnect(card, dev->device_data) < 0)
err = -ENXIO;
}
@@ -223,24 +238,17 @@ int snd_device_disconnect_all(struct snd_card *card)
* release all the devices on the card.
* called from init.c
*/
-int snd_device_free_all(struct snd_card *card, enum snd_device_cmd cmd)
+int snd_device_free_all(struct snd_card *card)
{
- struct snd_device *dev;
- int err;
- unsigned int range_low, range_high, type;
+ struct snd_device *dev, *next;
+ int ret = 0;
if (snd_BUG_ON(!card))
return -ENXIO;
- range_low = (unsigned int)cmd * SNDRV_DEV_TYPE_RANGE_SIZE;
- range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1;
- __again:
- list_for_each_entry(dev, &card->devices, list) {
- type = (unsigned int)dev->type;
- if (type >= range_low && type <= range_high) {
- if ((err = snd_device_free(card, dev->device_data)) < 0)
- return err;
- goto __again;
- }
+ list_for_each_entry_safe_reverse(dev, next, &card->devices, list) {
+ int err = snd_device_free(card, dev->device_data);
+ if (err < 0)
+ ret = err;
}
- return 0;
+ return ret;
}
diff --git a/sound/core/init.c b/sound/core/init.c
index b7085eb..9e7f17b 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -266,7 +266,7 @@ int snd_card_new(struct device *parent, int idx, const char *xid,
return 0;
__error_ctl:
- snd_device_free_all(card, SNDRV_DEV_CMD_PRE);
+ snd_device_free_all(card);
__error:
put_device(&card->card_dev);
return err;
@@ -454,16 +454,8 @@ static int snd_card_do_free(struct snd_card *card)
if (snd_mixer_oss_notify_callback)
snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE);
#endif
- if (snd_device_free_all(card, SNDRV_DEV_CMD_PRE) < 0) {
- dev_err(card->dev, "unable to free all devices (pre)\n");
- /* Fatal, but this situation should never occur */
- }
- if (snd_device_free_all(card, SNDRV_DEV_CMD_NORMAL) < 0) {
- dev_err(card->dev, "unable to free all devices (normal)\n");
- /* Fatal, but this situation should never occur */
- }
- if (snd_device_free_all(card, SNDRV_DEV_CMD_POST) < 0) {
- dev_err(card->dev, "unable to free all devices (post)\n");
+ if (snd_device_free_all(card) < 0) {
+ dev_err(card->dev, "unable to free all devices\n");
/* Fatal, but this situation should never occur */
}
if (card->private_free)
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