diff options
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/pcm_dmaengine.c | 6 | ||||
| -rw-r--r-- | sound/core/seq/seq_ump_client.c | 16 |
2 files changed, 21 insertions, 1 deletions
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c index e299e86347..62489677f3 100644 --- a/sound/core/pcm_dmaengine.c +++ b/sound/core/pcm_dmaengine.c @@ -352,8 +352,12 @@ EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open_request_chan); int snd_dmaengine_pcm_sync_stop(struct snd_pcm_substream *substream) { struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream); + struct dma_tx_state state; + enum dma_status status; - dmaengine_synchronize(prtd->dma_chan); + status = dmaengine_tx_status(prtd->dma_chan, prtd->cookie, &state); + if (status != DMA_PAUSED) + dmaengine_synchronize(prtd->dma_chan); return 0; } diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_client.c index c627d72f7f..9cdfbeae3e 100644 --- a/sound/core/seq/seq_ump_client.c +++ b/sound/core/seq/seq_ump_client.c @@ -28,6 +28,7 @@ struct seq_ump_group { int group; /* group index (0-based) */ unsigned int dir_bits; /* directions */ bool active; /* activeness */ + bool valid; /* valid group (referred by blocks) */ char name[64]; /* seq port name */ }; @@ -210,6 +211,13 @@ static void fill_port_info(struct snd_seq_port_info *port, sprintf(port->name, "Group %d", group->group + 1); } +/* skip non-existing group for static blocks */ +static bool skip_group(struct seq_ump_client *client, struct seq_ump_group *group) +{ + return !group->valid && + (client->ump->info.flags & SNDRV_UMP_EP_INFO_STATIC_BLOCKS); +} + /* create a new sequencer port per UMP group */ static int seq_ump_group_init(struct seq_ump_client *client, int group_index) { @@ -217,6 +225,9 @@ static int seq_ump_group_init(struct seq_ump_client *client, int group_index) struct snd_seq_port_info *port __free(kfree) = NULL; struct snd_seq_port_callback pcallbacks; + if (skip_group(client, group)) + return 0; + port = kzalloc(sizeof(*port), GFP_KERNEL); if (!port) return -ENOMEM; @@ -250,6 +261,9 @@ static void update_port_infos(struct seq_ump_client *client) return; for (i = 0; i < SNDRV_UMP_MAX_GROUPS; i++) { + if (skip_group(client, &client->groups[i])) + continue; + old->addr.client = client->seq_client; old->addr.port = i; err = snd_seq_kernel_client_ctl(client->seq_client, @@ -284,6 +298,7 @@ static void update_group_attrs(struct seq_ump_client *client) group->dir_bits = 0; group->active = 0; group->group = i; + group->valid = false; } list_for_each_entry(fb, &client->ump->block_list, list) { @@ -291,6 +306,7 @@ static void update_group_attrs(struct seq_ump_client *client) break; group = &client->groups[fb->info.first_group]; for (i = 0; i < fb->info.num_groups; i++, group++) { + group->valid = true; if (fb->info.active) group->active = 1; switch (fb->info.direction) { |