diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/ump.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/sound/core/ump.c b/sound/core/ump.c index d5d72473d999..cd192bec227a 100644 --- a/sound/core/ump.c +++ b/sound/core/ump.c @@ -984,7 +984,7 @@ static int snd_ump_legacy_open(struct snd_rawmidi_substream *substream) { struct snd_ump_endpoint *ump = substream->rmidi->private_data; int dir = substream->stream; - int group = substream->number; + int group = ump->legacy_mapping[substream->number]; int err; mutex_lock(&ump->open_mutex); @@ -1016,7 +1016,7 @@ static int snd_ump_legacy_close(struct snd_rawmidi_substream *substream) { struct snd_ump_endpoint *ump = substream->rmidi->private_data; int dir = substream->stream; - int group = substream->number; + int group = ump->legacy_mapping[substream->number]; mutex_lock(&ump->open_mutex); spin_lock_irq(&ump->legacy_locks[dir]); @@ -1123,6 +1123,34 @@ static void process_legacy_input(struct snd_ump_endpoint *ump, const u32 *src, spin_unlock_irqrestore(&ump->legacy_locks[dir], flags); } +/* Fill ump->legacy_mapping[] for groups to be used for legacy rawmidi */ +static int fill_legacy_mapping(struct snd_ump_endpoint *ump) +{ + struct snd_ump_block *fb; + unsigned int group_maps = 0; + int i, num; + + if (ump->info.flags & SNDRV_UMP_EP_INFO_STATIC_BLOCKS) { + list_for_each_entry(fb, &ump->block_list, list) { + for (i = 0; i < fb->info.num_groups; i++) + group_maps |= 1U << (fb->info.first_group + i); + } + if (!group_maps) + ump_info(ump, "No UMP Group is found in FB\n"); + } + + /* use all groups for non-static case */ + if (!group_maps) + group_maps = (1U << SNDRV_UMP_MAX_GROUPS) - 1; + + num = 0; + for (i = 0; i < SNDRV_UMP_MAX_GROUPS; i++) + if (group_maps & (1U << i)) + ump->legacy_mapping[num++] = i; + + return num; +} + static void fill_substream_names(struct snd_ump_endpoint *ump, struct snd_rawmidi *rmidi, int dir) { @@ -1130,7 +1158,7 @@ static void fill_substream_names(struct snd_ump_endpoint *ump, list_for_each_entry(s, &rmidi->streams[dir].substreams, list) snprintf(s->name, sizeof(s->name), "Group %d (%s)", - s->number + 1, ump->info.name); + ump->legacy_mapping[s->number] + 1, ump->info.name); } int snd_ump_attach_legacy_rawmidi(struct snd_ump_endpoint *ump, @@ -1138,16 +1166,19 @@ int snd_ump_attach_legacy_rawmidi(struct snd_ump_endpoint *ump, { struct snd_rawmidi *rmidi; bool input, output; - int err; + int err, num; - ump->out_cvts = kcalloc(16, sizeof(*ump->out_cvts), GFP_KERNEL); + ump->out_cvts = kcalloc(SNDRV_UMP_MAX_GROUPS, + sizeof(*ump->out_cvts), GFP_KERNEL); if (!ump->out_cvts) return -ENOMEM; + num = fill_legacy_mapping(ump); + input = ump->core.info_flags & SNDRV_RAWMIDI_INFO_INPUT; output = ump->core.info_flags & SNDRV_RAWMIDI_INFO_OUTPUT; err = snd_rawmidi_new(ump->core.card, id, device, - output ? 16 : 0, input ? 16 : 0, + output ? num : 0, input ? num : 0, &rmidi); if (err < 0) { kfree(ump->out_cvts); |