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| author |   Clemens Ladisch <clemens@ladisch.de> | 2005-11-20 14:06:59 +0100 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:29:17 +0100 |
| commit | f87135f56cb266e031f5ec081dfbde7e43f55e80 (patch) | |
| tree | c048abae6bb04df53f5d8d7dcffbf2c28bc638ff /sound/core/oss | |
| parent | [ALSA] dynamic minors (2/6): simplify storage of snd_minor structures (diff) | |
| download | linux-dev-f87135f56cb266e031f5ec081dfbde7e43f55e80.tar.xz linux-dev-f87135f56cb266e031f5ec081dfbde7e43f55e80.zip | |
[ALSA] dynamic minors (3/6): store device-specific object pointers dynamically
Instead of storing the pointers to the device-specific structures in an
array, put them into the struct snd_minor, and look them up dynamically.
This makes the device type modules independent of the minor number
encoding.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/core/oss')
| -rw-r--r-- | sound/core/oss/mixer_oss.c | 7 | ||||
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 14 |
2 files changed, 8 insertions, 13 deletions
diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index 2dd6bf9b49ed..2d7a42014f51 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -41,12 +41,13 @@ MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); static int snd_mixer_oss_open(struct inode *inode, struct file *file) { - int cardnum = SNDRV_MINOR_OSS_CARD(iminor(inode)); struct snd_card *card; struct snd_mixer_oss_file *fmixer; int err; - if ((card = snd_cards[cardnum]) == NULL) + card = snd_lookup_oss_minor_data(iminor(inode), + SNDRV_OSS_DEVICE_TYPE_MIXER); + if (card == NULL) return -ENODEV; if (card->mixer_oss == NULL) return -ENODEV; @@ -1286,7 +1287,7 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) sprintf(name, "mixer%i%i", card->number, 0); if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, card, 0, - &snd_mixer_oss_f_ops, + &snd_mixer_oss_f_ops, card, name)) < 0) { snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", card->number, 0); diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 947bf08df42a..2ae283c7b28a 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -1834,9 +1834,6 @@ static int snd_task_name(struct task_struct *task, char *name, size_t size) static int snd_pcm_oss_open(struct inode *inode, struct file *file) { - int minor = iminor(inode); - int cardnum = SNDRV_MINOR_OSS_CARD(minor); - int device; int err; char task_name[32]; struct snd_pcm *pcm; @@ -1845,11 +1842,8 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) int nonblock; wait_queue_t wait; - snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO); - device = SNDRV_MINOR_OSS_DEVICE(minor) == SNDRV_MINOR_OSS_PCM1 ? - adsp_map[cardnum] : dsp_map[cardnum]; - - pcm = snd_pcm_devices[(cardnum * SNDRV_PCM_DEVICES) + device]; + pcm = snd_lookup_oss_minor_data(iminor(inode), + SNDRV_OSS_DEVICE_TYPE_PCM); if (pcm == NULL) { err = -ENODEV; goto __error1; @@ -1890,7 +1884,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) down(&pcm->open_mutex); while (1) { err = snd_pcm_oss_open_file(file, pcm, &pcm_oss_file, - minor, psetup, csetup); + iminor(inode), psetup, csetup); if (err >= 0) break; if (err == -EAGAIN) { @@ -2450,7 +2444,7 @@ static void register_oss_dsp(struct snd_pcm *pcm, int index) sprintf(name, "dsp%i%i", pcm->card->number, pcm->device); if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_PCM, pcm->card, index, &snd_pcm_oss_f_reg, - name) < 0) { + pcm, name) < 0) { snd_printk(KERN_ERR "unable to register OSS PCM device %i:%i\n", pcm->card->number, pcm->device); } |