From e820f7b2e1428558ee20a3d0efe9cd5038f83439 Mon Sep 17 00:00:00 2001 From: Mark Farrugia Date: Tue, 13 Nov 2018 08:52:36 +1100 Subject: Add initial recipes for snd-avirt driver The snd-avirt driver will provide an enhanced, dynamic ALSA loopback interface for 4a-softmixer, and provides the audio framework for low-latency audio hardmixers such as the Fiberdyne DSP onboard the Xtensa HiFi2, and the UNICENs Fiberdyne smart amplifier. Included are backport patches for kernels 4.12 and 4.9. Change-Id: I8b23507d7179d10dfa70b7f2f899db4534690392 Signed-off-by: Mark Farrugia --- .../0002-snd-avirt-backport-kernel-4.9-api.patch | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 meta-audio-4a-framework/recipes-kernel/snd-avirt/files/0002-snd-avirt-backport-kernel-4.9-api.patch (limited to 'meta-audio-4a-framework/recipes-kernel/snd-avirt/files/0002-snd-avirt-backport-kernel-4.9-api.patch') diff --git a/meta-audio-4a-framework/recipes-kernel/snd-avirt/files/0002-snd-avirt-backport-kernel-4.9-api.patch b/meta-audio-4a-framework/recipes-kernel/snd-avirt/files/0002-snd-avirt-backport-kernel-4.9-api.patch new file mode 100644 index 00000000..fa944da0 --- /dev/null +++ b/meta-audio-4a-framework/recipes-kernel/snd-avirt/files/0002-snd-avirt-backport-kernel-4.9-api.patch @@ -0,0 +1,63 @@ +From fe7fc04e4f685c72b4f971ca0e23b10d683cffe0 Mon Sep 17 00:00:00 2001 +From: Mark Farrugia +Date: Fri, 16 Nov 2018 16:10:12 +1100 +Subject: [PATCH] snd-avirt-backport-kernel-4.9-api + +--- + dummy/dummy.c | 6 +++--- + loopback/loopback.c | 6 +++--- + 2 files changed, 6 insertions(+), 6 deletions(-) + +diff --git a/dummy/dummy.c b/dummy/dummy.c +index f683b92..c37be09 100644 +--- a/dummy/dummy.c ++++ b/dummy/dummy.c +@@ -125,9 +125,9 @@ static int dummy_systimer_prepare(struct snd_pcm_substream *substream) + return 0; + } + +-static void dummy_systimer_callback(struct timer_list *t) ++static void dummy_systimer_callback(unsigned long data) + { +- struct dummy_systimer_pcm *dpcm = from_timer(dpcm, t, timer); ++ struct dummy_systimer_pcm *dpcm = (struct dummy_systimer_pcm *)data; + unsigned long flags; + int elapsed = 0; + +@@ -162,7 +162,7 @@ static int dummy_systimer_create(struct snd_pcm_substream *substream) + if (!dpcm) + return -ENOMEM; + substream->runtime->private_data = dpcm; +- timer_setup(&dpcm->timer, dummy_systimer_callback, 0); ++ setup_timer(&dpcm->timer, dummy_systimer_callback, (unsigned long)dpcm); + spin_lock_init(&dpcm->lock); + dpcm->substream = substream; + return 0; +diff --git a/loopback/loopback.c b/loopback/loopback.c +index 4181392..6667a69 100644 +--- a/loopback/loopback.c ++++ b/loopback/loopback.c +@@ -498,9 +498,9 @@ unlock: + return running; + } + +-static void loopback_timer_function(struct timer_list *t) ++static void loopback_timer_function(unsigned long data) + { +- struct loopback_pcm *dpcm = from_timer(dpcm, t, timer); ++ struct loopback_pcm *dpcm = (struct loopback_pcm *)data; + unsigned long flags; + + spin_lock_irqsave(&dpcm->cable->lock, flags); +@@ -652,7 +652,7 @@ static int loopback_open(struct snd_pcm_substream *substream) + } + dpcm->loopback = loopback; + dpcm->substream = substream; +- timer_setup(&dpcm->timer, loopback_timer_function, 0); ++ setup_timer(&dpcm->timer, loopback_timer_function, (unsigned long)dpcm); + + cable = loopback->cables[substream->pcm->device]; + if (!cable) { +-- +2.17.1 + -- cgit 1.2.3-korg