diff options
Diffstat (limited to 'sound/core/seq/seq_fifo.c')
| -rw-r--r-- | sound/core/seq/seq_fifo.c | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/sound/core/seq/seq_fifo.c b/sound/core/seq/seq_fifo.c index 4767cfdc361..53a403e17c5 100644 --- a/sound/core/seq/seq_fifo.c +++ b/sound/core/seq/seq_fifo.c @@ -19,7 +19,6 @@ * */ -#include <sound/driver.h> #include <sound/core.h> #include <linux/slab.h> #include "seq_fifo.h" @@ -29,13 +28,13 @@ /* FIFO */ /* create new fifo */ -fifo_t *snd_seq_fifo_new(int poolsize) +struct snd_seq_fifo *snd_seq_fifo_new(int poolsize) { - fifo_t *f; + struct snd_seq_fifo *f; f = kzalloc(sizeof(*f), GFP_KERNEL); if (f == NULL) { - snd_printd("malloc failed for snd_seq_fifo_new() \n"); + pr_debug("ALSA: seq: malloc failed for snd_seq_fifo_new() \n"); return NULL; } @@ -62,13 +61,15 @@ fifo_t *snd_seq_fifo_new(int poolsize) return f; } -void snd_seq_fifo_delete(fifo_t **fifo) +void snd_seq_fifo_delete(struct snd_seq_fifo **fifo) { - fifo_t *f; + struct snd_seq_fifo *f; - snd_assert(fifo != NULL, return); + if (snd_BUG_ON(!fifo)) + return; f = *fifo; - snd_assert(f != NULL, return); + if (snd_BUG_ON(!f)) + return; *fifo = NULL; snd_seq_fifo_clear(f); @@ -88,12 +89,12 @@ void snd_seq_fifo_delete(fifo_t **fifo) kfree(f); } -static snd_seq_event_cell_t *fifo_cell_out(fifo_t *f); +static struct snd_seq_event_cell *fifo_cell_out(struct snd_seq_fifo *f); /* clear queue */ -void snd_seq_fifo_clear(fifo_t *f) +void snd_seq_fifo_clear(struct snd_seq_fifo *f) { - snd_seq_event_cell_t *cell; + struct snd_seq_event_cell *cell; unsigned long flags; /* clear overflow flag */ @@ -110,18 +111,20 @@ void snd_seq_fifo_clear(fifo_t *f) /* enqueue event to fifo */ -int snd_seq_fifo_event_in(fifo_t *f, snd_seq_event_t *event) +int snd_seq_fifo_event_in(struct snd_seq_fifo *f, + struct snd_seq_event *event) { - snd_seq_event_cell_t *cell; + struct snd_seq_event_cell *cell; unsigned long flags; int err; - snd_assert(f != NULL, return -EINVAL); + if (snd_BUG_ON(!f)) + return -EINVAL; snd_use_lock_use(&f->use_lock); err = snd_seq_event_dup(f->pool, event, &cell, 1, NULL); /* always non-blocking */ if (err < 0) { - if (err == -ENOMEM) + if ((err == -ENOMEM) || (err == -EAGAIN)) atomic_inc(&f->overflow); snd_use_lock_free(&f->use_lock); return err; @@ -148,9 +151,9 @@ int snd_seq_fifo_event_in(fifo_t *f, snd_seq_event_t *event) } /* dequeue cell from fifo */ -static snd_seq_event_cell_t *fifo_cell_out(fifo_t *f) +static struct snd_seq_event_cell *fifo_cell_out(struct snd_seq_fifo *f) { - snd_seq_event_cell_t *cell; + struct snd_seq_event_cell *cell; if ((cell = f->head) != NULL) { f->head = cell->next; @@ -167,13 +170,15 @@ static snd_seq_event_cell_t *fifo_cell_out(fifo_t *f) } /* dequeue cell from fifo and copy on user space */ -int snd_seq_fifo_cell_out(fifo_t *f, snd_seq_event_cell_t **cellp, int nonblock) +int snd_seq_fifo_cell_out(struct snd_seq_fifo *f, + struct snd_seq_event_cell **cellp, int nonblock) { - snd_seq_event_cell_t *cell; + struct snd_seq_event_cell *cell; unsigned long flags; wait_queue_t wait; - snd_assert(f != NULL, return -EINVAL); + if (snd_BUG_ON(!f)) + return -EINVAL; *cellp = NULL; init_waitqueue_entry(&wait, current); @@ -202,7 +207,8 @@ int snd_seq_fifo_cell_out(fifo_t *f, snd_seq_event_cell_t **cellp, int nonblock) } -void snd_seq_fifo_cell_putback(fifo_t *f, snd_seq_event_cell_t *cell) +void snd_seq_fifo_cell_putback(struct snd_seq_fifo *f, + struct snd_seq_event_cell *cell) { unsigned long flags; @@ -217,20 +223,22 @@ void snd_seq_fifo_cell_putback(fifo_t *f, snd_seq_event_cell_t *cell) /* polling; return non-zero if queue is available */ -int snd_seq_fifo_poll_wait(fifo_t *f, struct file *file, poll_table *wait) +int snd_seq_fifo_poll_wait(struct snd_seq_fifo *f, struct file *file, + poll_table *wait) { poll_wait(file, &f->input_sleep, wait); return (f->cells > 0); } /* change the size of pool; all old events are removed */ -int snd_seq_fifo_resize(fifo_t *f, int poolsize) +int snd_seq_fifo_resize(struct snd_seq_fifo *f, int poolsize) { unsigned long flags; - pool_t *newpool, *oldpool; - snd_seq_event_cell_t *cell, *next, *oldhead; + struct snd_seq_pool *newpool, *oldpool; + struct snd_seq_event_cell *cell, *next, *oldhead; - snd_assert(f != NULL && f->pool != NULL, return -EINVAL); + if (snd_BUG_ON(!f || !f->pool)) + return -EINVAL; /* allocate new pool */ newpool = snd_seq_pool_new(poolsize); |
