diff options
| -rw-r--r-- | include/sound/rawmidi.h | 4 | ||||
| -rw-r--r-- | sound/core/rawmidi.c | 37 |
2 files changed, 14 insertions, 27 deletions
diff --git a/include/sound/rawmidi.h b/include/sound/rawmidi.h index 2480e7d10dcf..6b14359d9fed 100644 --- a/include/sound/rawmidi.h +++ b/include/sound/rawmidi.h @@ -27,6 +27,7 @@ #include <linux/spinlock.h> #include <linux/wait.h> #include <linux/mutex.h> +#include <linux/workqueue.h> #if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE) #include "seq_device.h" @@ -63,6 +64,7 @@ struct snd_rawmidi_global_ops { }; struct snd_rawmidi_runtime { + struct snd_rawmidi_substream *substream; unsigned int drain: 1, /* drain stage */ oss: 1; /* OSS compatible mode */ /* midi stream buffer */ @@ -79,7 +81,7 @@ struct snd_rawmidi_runtime { /* event handler (new bytes, input only) */ void (*event)(struct snd_rawmidi_substream *substream); /* defers calls to event [input] or ops->trigger [output] */ - struct tasklet_struct tasklet; + struct work_struct event_work; /* private data */ void *private_data; void (*private_free)(struct snd_rawmidi_substream *substream); diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index cbbed0db9e56..0757f542999d 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -92,16 +92,12 @@ static inline int snd_rawmidi_ready_append(struct snd_rawmidi_substream *substre (!substream->append || runtime->avail >= count); } -static void snd_rawmidi_input_event_tasklet(unsigned long data) +static void snd_rawmidi_input_event_work(struct work_struct *work) { - struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *)data; - substream->runtime->event(substream); -} - -static void snd_rawmidi_output_trigger_tasklet(unsigned long data) -{ - struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *)data; - substream->ops->trigger(substream, 1); + struct snd_rawmidi_runtime *runtime = + container_of(work, struct snd_rawmidi_runtime, event_work); + if (runtime->event) + runtime->event(runtime->substream); } static int snd_rawmidi_runtime_create(struct snd_rawmidi_substream *substream) @@ -110,16 +106,10 @@ static int snd_rawmidi_runtime_create(struct snd_rawmidi_substream *substream) if ((runtime = kzalloc(sizeof(*runtime), GFP_KERNEL)) == NULL) return -ENOMEM; + runtime->substream = substream; spin_lock_init(&runtime->lock); init_waitqueue_head(&runtime->sleep); - if (substream->stream == SNDRV_RAWMIDI_STREAM_INPUT) - tasklet_init(&runtime->tasklet, - snd_rawmidi_input_event_tasklet, - (unsigned long)substream); - else - tasklet_init(&runtime->tasklet, - snd_rawmidi_output_trigger_tasklet, - (unsigned long)substream); + INIT_WORK(&runtime->event_work, snd_rawmidi_input_event_work); runtime->event = NULL; runtime->buffer_size = PAGE_SIZE; runtime->avail_min = 1; @@ -150,12 +140,7 @@ static inline void snd_rawmidi_output_trigger(struct snd_rawmidi_substream *subs { if (!substream->opened) return; - if (up) { - tasklet_schedule(&substream->runtime->tasklet); - } else { - tasklet_kill(&substream->runtime->tasklet); - substream->ops->trigger(substream, 0); - } + substream->ops->trigger(substream, up); } static void snd_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, int up) @@ -163,8 +148,8 @@ static void snd_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, i if (!substream->opened) return; substream->ops->trigger(substream, up); - if (!up && substream->runtime->event) - tasklet_kill(&substream->runtime->tasklet); + if (!up) + cancel_work_sync(&substream->runtime->event_work); } int snd_rawmidi_drop_output(struct snd_rawmidi_substream *substream) @@ -926,7 +911,7 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream, } if (result > 0) { if (runtime->event) - tasklet_schedule(&runtime->tasklet); + schedule_work(&runtime->event_work); else if (snd_rawmidi_ready(substream)) wake_up(&runtime->sleep); } |