alsa/0009-pcm-Implement-timestamp-type-handling-in-all-plugins.patch

From 65ff6fdafb705b5e2e6d4b9a94a80e5de89f5de1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 10 Jul 2014 14:37:49 +0200
Subject: [PATCH 09/14] pcm: Implement timestamp type handling in all plugins

Now all PCM plugins do support the proper timestamp type or pass it
over slaves.  The internal monotonic flag is dropped and replaced with
tstamp_type in all places.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 src/pcm/pcm_adpcm.c     |  2 +-
 src/pcm/pcm_alaw.c      |  2 +-
 src/pcm/pcm_copy.c      |  2 +-
 src/pcm/pcm_direct.c    |  4 ++--
 src/pcm/pcm_direct.h    |  2 +-
 src/pcm/pcm_dmix.c      |  8 ++++----
 src/pcm/pcm_dshare.c    |  8 ++++----
 src/pcm/pcm_dsnoop.c    |  4 ++--
 src/pcm/pcm_file.c      |  6 +++---
 src/pcm/pcm_generic.c   |  2 +-
 src/pcm/pcm_hooks.c     |  2 +-
 src/pcm/pcm_hw.c        |  1 -
 src/pcm/pcm_iec958.c    |  2 +-
 src/pcm/pcm_ioplug.c    |  9 ++++++---
 src/pcm/pcm_ladspa.c    |  2 +-
 src/pcm/pcm_lfloat.c    |  2 +-
 src/pcm/pcm_linear.c    |  2 +-
 src/pcm/pcm_local.h     | 45 +++++++++++++++++++++++++++++----------------
 src/pcm/pcm_meter.c     |  2 +-
 src/pcm/pcm_mmap_emul.c |  2 +-
 src/pcm/pcm_mulaw.c     |  2 +-
 src/pcm/pcm_multi.c     |  2 +-
 src/pcm/pcm_null.c      |  2 +-
 src/pcm/pcm_plug.c      |  2 +-
 src/pcm/pcm_rate.c      |  4 ++--
 src/pcm/pcm_route.c     |  2 +-
 src/pcm/pcm_share.c     |  6 +++---
 src/pcm/pcm_softvol.c   |  2 +-
 28 files changed, 73 insertions(+), 58 deletions(-)

diff --git a/src/pcm/pcm_adpcm.c b/src/pcm/pcm_adpcm.c
index 6f0e7c4cc631..1a83c5a0e21c 100644
--- a/src/pcm/pcm_adpcm.c
+++ b/src/pcm/pcm_adpcm.c
@@ -579,7 +579,7 @@ int snd_pcm_adpcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sfor
 	pcm->private_data = adpcm;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &adpcm->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &adpcm->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_alaw.c b/src/pcm/pcm_alaw.c
index 1b1bab83c944..db759e3effa4 100644
--- a/src/pcm/pcm_alaw.c
+++ b/src/pcm/pcm_alaw.c
@@ -453,7 +453,7 @@ int snd_pcm_alaw_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sform
 	pcm->private_data = alaw;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &alaw->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &alaw->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_copy.c b/src/pcm/pcm_copy.c
index 56a1f6bcc912..66d3a4719856 100644
--- a/src/pcm/pcm_copy.c
+++ b/src/pcm/pcm_copy.c
@@ -209,7 +209,7 @@ int snd_pcm_copy_open(snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int
 	pcm->private_data = copy;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &copy->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &copy->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_direct.c b/src/pcm/pcm_direct.c
index 5416cf71674c..8e37bcba5e19 100644
--- a/src/pcm/pcm_direct.c
+++ b/src/pcm/pcm_direct.c
@@ -840,6 +840,7 @@ static void save_slave_setting(snd_pcm_direct_t *dmix, snd_pcm_t *spcm)
 	COPY_SLAVE(period_time);
 	COPY_SLAVE(periods);
 	COPY_SLAVE(tstamp_mode);
+	COPY_SLAVE(tstamp_type);
 	COPY_SLAVE(period_step);
 	COPY_SLAVE(avail_min);
 	COPY_SLAVE(start_threshold);
@@ -857,7 +858,6 @@ static void save_slave_setting(snd_pcm_direct_t *dmix, snd_pcm_t *spcm)
 	COPY_SLAVE(buffer_time);
 	COPY_SLAVE(sample_bits);
 	COPY_SLAVE(frame_bits);
-	COPY_SLAVE(monotonic);
 }
 
 #undef COPY_SLAVE
@@ -1204,6 +1204,7 @@ static void copy_slave_setting(snd_pcm_direct_t *dmix, snd_pcm_t *spcm)
 	COPY_SLAVE(period_time);
 	COPY_SLAVE(periods);
 	COPY_SLAVE(tstamp_mode);
+	COPY_SLAVE(tstamp_type);
 	COPY_SLAVE(period_step);
 	COPY_SLAVE(avail_min);
 	COPY_SLAVE(start_threshold);
@@ -1221,7 +1222,6 @@ static void copy_slave_setting(snd_pcm_direct_t *dmix, snd_pcm_t *spcm)
 	COPY_SLAVE(buffer_time);
 	COPY_SLAVE(sample_bits);
 	COPY_SLAVE(frame_bits);
-	COPY_SLAVE(monotonic);
 
 	spcm->info &= ~SND_PCM_INFO_PAUSE;
 	spcm->boundary = recalc_boundary_size(dmix->shmptr->s.boundary, spcm->buffer_size);
diff --git a/src/pcm/pcm_direct.h b/src/pcm/pcm_direct.h
index 5ae39c0e4237..9b1ddbcf424a 100644
--- a/src/pcm/pcm_direct.h
+++ b/src/pcm/pcm_direct.h
@@ -85,8 +85,8 @@ typedef struct {
 		unsigned int period_size;
 		unsigned int period_time;
 		snd_interval_t periods;
-		unsigned int monotonic;
 		snd_pcm_tstamp_t tstamp_mode;
+		snd_pcm_tstamp_type_t tstamp_type;
 		unsigned int period_step;
 		unsigned int sleep_min; /* not used */
 		unsigned int avail_min;
diff --git a/src/pcm/pcm_dmix.c b/src/pcm/pcm_dmix.c
index 4aa6d4eab4a2..7c535093ea0f 100644
--- a/src/pcm/pcm_dmix.c
+++ b/src/pcm/pcm_dmix.c
@@ -428,7 +428,7 @@ static int snd_pcm_dmix_sync_ptr(snd_pcm_t *pcm)
 		dmix->avail_max = avail;
 	if (avail >= pcm->stop_threshold) {
 		snd_timer_stop(dmix->timer);
-		gettimestamp(&dmix->trigger_tstamp, pcm->monotonic);
+		gettimestamp(&dmix->trigger_tstamp, pcm->tstamp_type);
 		if (dmix->state == SND_PCM_STATE_RUNNING) {
 			dmix->state = SND_PCM_STATE_XRUN;
 			return -EPIPE;
@@ -477,7 +477,7 @@ static int snd_pcm_dmix_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
 	memset(status, 0, sizeof(*status));
 	status->state = snd_pcm_dmix_state(pcm);
 	status->trigger_tstamp = dmix->trigger_tstamp;
-	gettimestamp(&status->tstamp, pcm->monotonic);
+	gettimestamp(&status->tstamp, pcm->tstamp_type);
 	status->avail = snd_pcm_mmap_playback_avail(pcm);
 	status->avail_max = status->avail > dmix->avail_max ? status->avail : dmix->avail_max;
 	dmix->avail_max = 0;
@@ -596,7 +596,7 @@ static int snd_pcm_dmix_start(snd_pcm_t *pcm)
 			return err;
 		snd_pcm_dmix_sync_area(pcm);
 	}
-	gettimestamp(&dmix->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&dmix->trigger_tstamp, pcm->tstamp_type);
 	return 0;
 }
 
@@ -1104,7 +1104,7 @@ int snd_pcm_dmix_open(snd_pcm_t **pcmp, const char *name,
 		
 	pcm->poll_fd = dmix->poll_fd;
 	pcm->poll_events = POLLIN;	/* it's different than other plugins */
-	pcm->monotonic = spcm->monotonic;
+	pcm->tstamp_type = spcm->tstamp_type;
 	pcm->mmap_rw = 1;
 	snd_pcm_set_hw_ptr(pcm, &dmix->hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &dmix->appl_ptr, -1, 0);
diff --git a/src/pcm/pcm_dshare.c b/src/pcm/pcm_dshare.c
index f2d1103a6bfb..b985172825e7 100644
--- a/src/pcm/pcm_dshare.c
+++ b/src/pcm/pcm_dshare.c
@@ -195,7 +195,7 @@ static int snd_pcm_dshare_sync_ptr(snd_pcm_t *pcm)
 		dshare->avail_max = avail;
 	if (avail >= pcm->stop_threshold) {
 		snd_timer_stop(dshare->timer);
-		gettimestamp(&dshare->trigger_tstamp, pcm->monotonic);
+		gettimestamp(&dshare->trigger_tstamp, pcm->tstamp_type);
 		if (dshare->state == SND_PCM_STATE_RUNNING) {
 			dshare->state = SND_PCM_STATE_XRUN;
 			return -EPIPE;
@@ -226,7 +226,7 @@ static int snd_pcm_dshare_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
 	memset(status, 0, sizeof(*status));
 	status->state = snd_pcm_state(dshare->spcm);
 	status->trigger_tstamp = dshare->trigger_tstamp;
-	gettimestamp(&status->tstamp, pcm->monotonic);
+	gettimestamp(&status->tstamp, pcm->tstamp_type);
 	status->avail = snd_pcm_mmap_playback_avail(pcm);
 	status->avail_max = status->avail > dshare->avail_max ? status->avail : dshare->avail_max;
 	dshare->avail_max = 0;
@@ -346,7 +346,7 @@ static int snd_pcm_dshare_start(snd_pcm_t *pcm)
 			return err;
 		snd_pcm_dshare_sync_area(pcm);
 	}
-	gettimestamp(&dshare->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&dshare->trigger_tstamp, pcm->tstamp_type);
 	return 0;
 }
 
@@ -792,7 +792,7 @@ int snd_pcm_dshare_open(snd_pcm_t **pcmp, const char *name,
 
 	pcm->poll_fd = dshare->poll_fd;
 	pcm->poll_events = POLLIN;	/* it's different than other plugins */
-	pcm->monotonic = spcm->monotonic;
+	pcm->tstamp_type = spcm->tstamp_type;
 	pcm->mmap_rw = 1;
 	snd_pcm_set_hw_ptr(pcm, &dshare->hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &dshare->appl_ptr, -1, 0);
diff --git a/src/pcm/pcm_dsnoop.c b/src/pcm/pcm_dsnoop.c
index 76379140c133..0f9c9df481bc 100644
--- a/src/pcm/pcm_dsnoop.c
+++ b/src/pcm/pcm_dsnoop.c
@@ -159,7 +159,7 @@ static int snd_pcm_dsnoop_sync_ptr(snd_pcm_t *pcm)
 	if (pcm->stop_threshold >= pcm->boundary)	/* don't care */
 		return 0;
 	if ((avail = snd_pcm_mmap_capture_hw_avail(pcm)) >= pcm->stop_threshold) {
-		gettimestamp(&dsnoop->trigger_tstamp, pcm->monotonic);
+		gettimestamp(&dsnoop->trigger_tstamp, pcm->tstamp_type);
 		dsnoop->state = SND_PCM_STATE_XRUN;
 		dsnoop->avail_max = avail;
 		return -EPIPE;
@@ -690,7 +690,7 @@ int snd_pcm_dsnoop_open(snd_pcm_t **pcmp, const char *name,
 
 	pcm->poll_fd = dsnoop->poll_fd;
 	pcm->poll_events = POLLIN;	/* it's different than other plugins */
-	pcm->monotonic = spcm->monotonic;
+	pcm->tstamp_type = spcm->tstamp_type;
 	pcm->mmap_rw = 1;
 	snd_pcm_set_hw_ptr(pcm, &dsnoop->hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &dsnoop->appl_ptr, -1, 0);
diff --git a/src/pcm/pcm_file.c b/src/pcm/pcm_file.c
index b139f7f24dc3..a0b8bf41bf5b 100644
--- a/src/pcm/pcm_file.c
+++ b/src/pcm/pcm_file.c
@@ -781,10 +781,10 @@ int snd_pcm_file_open(snd_pcm_t **pcmp, const char *name,
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
 	pcm->mmap_shadow = 1;
+	pcm->tstamp_type = SND_PCM_TSTAMP_TYPE_GETTIMEOFDAY;
 #if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC)
-	pcm->monotonic = clock_gettime(CLOCK_MONOTONIC, &timespec) == 0;
-#else
-	pcm->monotonic = 0;
+	if (clock_gettime(CLOCK_MONOTONIC, &timespec) == 0)
+		pcm->tstamp_type = SND_PCM_TSTAMP_TYPE_MONOTONIC;
 #endif
 	pcm->stream = stream;
 	snd_pcm_link_hw_ptr(pcm, slave);
diff --git a/src/pcm/pcm_generic.c b/src/pcm/pcm_generic.c
index f068ee2585bc..9b605911f868 100644
--- a/src/pcm/pcm_generic.c
+++ b/src/pcm/pcm_generic.c
@@ -294,7 +294,7 @@ int snd_pcm_generic_real_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail,
 		if (ok && (snd_pcm_uframes_t)avail1 == *avail)
 			break;
 		*avail = avail1;
-		gettimestamp(tstamp, pcm->monotonic);
+		gettimestamp(tstamp, pcm->tstamp_type);
 		ok = 1;
 	}
 	return 0;
diff --git a/src/pcm/pcm_hooks.c b/src/pcm/pcm_hooks.c
index f83728245ecd..0b93c641daaa 100644
--- a/src/pcm/pcm_hooks.c
+++ b/src/pcm/pcm_hooks.c
@@ -240,7 +240,7 @@ int snd_pcm_hooks_open(snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
 	pcm->mmap_shadow = 1;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_link_hw_ptr(pcm, slave);
 	snd_pcm_link_appl_ptr(pcm, slave);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_hw.c b/src/pcm/pcm_hw.c
index bafa8debeb0b..74cff672a0c1 100644
--- a/src/pcm/pcm_hw.c
+++ b/src/pcm/pcm_hw.c
@@ -1498,7 +1498,6 @@ int snd_pcm_hw_open_fd(snd_pcm_t **pcmp, const char *name,
 	pcm->poll_fd = fd;
 	pcm->poll_events = info.stream == SND_PCM_STREAM_PLAYBACK ? POLLOUT : POLLIN;
 	pcm->tstamp_type = tstamp_type;
-	pcm->monotonic = tstamp_type != SND_PCM_TSTAMP_TYPE_GETTIMEOFDAY;
 
 	ret = snd_pcm_hw_mmap_status(pcm);
 	if (ret < 0) {
diff --git a/src/pcm/pcm_iec958.c b/src/pcm/pcm_iec958.c
index 0c61fc17995b..38c4ce7e2421 100644
--- a/src/pcm/pcm_iec958.c
+++ b/src/pcm/pcm_iec958.c
@@ -534,7 +534,7 @@ int snd_pcm_iec958_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sfo
 	pcm->private_data = iec;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &iec->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &iec->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_ioplug.c b/src/pcm/pcm_ioplug.c
index c1c3a9835d47..85a88911eafc 100644
--- a/src/pcm/pcm_ioplug.c
+++ b/src/pcm/pcm_ioplug.c
@@ -448,7 +448,7 @@ static int snd_pcm_ioplug_start(snd_pcm_t *pcm)
 	if (err < 0)
 		return err;
 
-	gettimestamp(&io->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&io->trigger_tstamp, pcm->tstamp_type);
 	io->data->state = SND_PCM_STATE_RUNNING;
 
 	return 0;
@@ -463,7 +463,7 @@ static int snd_pcm_ioplug_drop(snd_pcm_t *pcm)
 
 	io->data->callback->stop(io->data);
 
-	gettimestamp(&io->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&io->trigger_tstamp, pcm->tstamp_type);
 	io->data->state = SND_PCM_STATE_SETUP;
 
 	return 0;
@@ -1069,7 +1069,10 @@ int snd_pcm_ioplug_reinit_status(snd_pcm_ioplug_t *ioplug)
 {
 	ioplug->pcm->poll_fd = ioplug->poll_fd;
 	ioplug->pcm->poll_events = ioplug->poll_events;
-	ioplug->pcm->monotonic = (ioplug->flags & SND_PCM_IOPLUG_FLAG_MONOTONIC) != 0;
+	if (ioplug->flags & SND_PCM_IOPLUG_FLAG_MONOTONIC)
+		ioplug->pcm->tstamp_type = SND_PCM_TSTAMP_TYPE_MONOTONIC;
+	else
+		ioplug->pcm->tstamp_type = SND_PCM_TSTAMP_TYPE_GETTIMEOFDAY;
 	ioplug->pcm->mmap_rw = ioplug->mmap_rw;
 	return 0;
 }
diff --git a/src/pcm/pcm_ladspa.c b/src/pcm/pcm_ladspa.c
index 7d1e3df878b0..631ee0f35b73 100644
--- a/src/pcm/pcm_ladspa.c
+++ b/src/pcm/pcm_ladspa.c
@@ -1641,7 +1641,7 @@ int snd_pcm_ladspa_open(snd_pcm_t **pcmp, const char *name,
 	pcm->private_data = ladspa;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &ladspa->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &ladspa->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_lfloat.c b/src/pcm/pcm_lfloat.c
index bbf72c274222..324282f0b7fc 100644
--- a/src/pcm/pcm_lfloat.c
+++ b/src/pcm/pcm_lfloat.c
@@ -412,7 +412,7 @@ int snd_pcm_lfloat_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sfo
 	pcm->private_data = lfloat;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &lfloat->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &lfloat->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_linear.c b/src/pcm/pcm_linear.c
index 7aa894185444..3d5bbb8a3688 100644
--- a/src/pcm/pcm_linear.c
+++ b/src/pcm/pcm_linear.c
@@ -484,7 +484,7 @@ int snd_pcm_linear_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sfo
 	pcm->private_data = linear;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &linear->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &linear->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_local.h b/src/pcm/pcm_local.h
index 3ed7e1a88792..2206afe2c4a9 100644
--- a/src/pcm/pcm_local.h
+++ b/src/pcm/pcm_local.h
@@ -191,7 +191,6 @@ struct _snd_pcm {
 	int poll_fd;
 	unsigned short poll_events;
 	int setup: 1,
-	    monotonic: 1,
 	    compat: 1;
 	snd_pcm_access_t access;	/* access mode */
 	snd_pcm_format_t format;	/* SND_PCM_FORMAT_* */
@@ -960,26 +959,40 @@ typedef union snd_tmp_double {
 } snd_tmp_double_t;
 
 /* get the current timestamp */
-static inline void gettimestamp(snd_htimestamp_t *tstamp, int monotonic)
+#ifdef HAVE_CLOCK_GETTIME
+static inline void gettimestamp(snd_htimestamp_t *tstamp,
+				snd_pcm_tstamp_type_t tstamp_type)
 {
-#if defined(HAVE_CLOCK_GETTIME)
-#if defined(CLOCK_MONOTONIC)
-	if (monotonic) {
-		clock_gettime(CLOCK_MONOTONIC, tstamp);
-	} else {
-#endif
-		clock_gettime(CLOCK_REALTIME, tstamp);
-#else
-		struct timeval tv;
+	clockid_t id;
 
-		gettimeofday(&tv, 0);
-		tstamp->tv_sec = tv.tv_sec;
-		tstamp->tv_nsec = tv.tv_usec * 1000L;
+	switch (tstamp_type) {
+#ifdef CLOCK_MONOTONIC_RAW
+	case SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW:
+		id = CLOCK_MONOTONIC_RAW;
+		break;
 #endif
-#if defined(HAVE_CLOCK_GETTIME)
-	}
+#ifdef CLOCK_MONOTONIC
+	case SND_PCM_TSTAMP_TYPE_MONOTONIC:
+		id = CLOCK_MONOTONIC;
+		break;
 #endif
+	default:
+		id = CLOCK_REALTIME;
+		break;
+	}
+	clock_gettime(id, tstamp);
+}
+#else /* HAVE_CLOCK_GETTIME */
+static inline void gettimestamp(snd_htimestamp_t *tstamp,
+				snd_pcm_tstamp_type_t tstamp_type)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, 0);
+	tstamp->tv_sec = tv.tv_sec;
+	tstamp->tv_nsec = tv.tv_usec * 1000L;
 }
+#endif /* HAVE_CLOCK_GETTIME */
 
 snd_pcm_chmap_query_t **
 _snd_pcm_make_single_query_chmaps(const snd_pcm_chmap_t *src);
diff --git a/src/pcm/pcm_meter.c b/src/pcm/pcm_meter.c
index 676fbef89c30..034f582564a8 100644
--- a/src/pcm/pcm_meter.c
+++ b/src/pcm/pcm_meter.c
@@ -591,7 +591,7 @@ int snd_pcm_meter_open(snd_pcm_t **pcmp, const char *name, unsigned int frequenc
 	pcm->private_data = meter;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_link_hw_ptr(pcm, slave);
 	snd_pcm_link_appl_ptr(pcm, slave);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_mmap_emul.c b/src/pcm/pcm_mmap_emul.c
index 63789bc07c1b..b2b15efd07d9 100644
--- a/src/pcm/pcm_mmap_emul.c
+++ b/src/pcm/pcm_mmap_emul.c
@@ -428,7 +428,7 @@ int __snd_pcm_mmap_emul_open(snd_pcm_t **pcmp, const char *name,
 	pcm->private_data = map;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &map->hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &map->appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_mulaw.c b/src/pcm/pcm_mulaw.c
index 7adce38e9f48..011b2a516be0 100644
--- a/src/pcm/pcm_mulaw.c
+++ b/src/pcm/pcm_mulaw.c
@@ -467,7 +467,7 @@ int snd_pcm_mulaw_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sfor
 	pcm->private_data = mulaw;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &mulaw->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &mulaw->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_multi.c b/src/pcm/pcm_multi.c
index a84e0ce48c59..4b8299ed6bcd 100644
--- a/src/pcm/pcm_multi.c
+++ b/src/pcm/pcm_multi.c
@@ -1077,7 +1077,7 @@ int snd_pcm_multi_open(snd_pcm_t **pcmp, const char *name,
 	pcm->private_data = multi;
 	pcm->poll_fd = multi->slaves[master_slave].pcm->poll_fd;
 	pcm->poll_events = multi->slaves[master_slave].pcm->poll_events;
-	pcm->monotonic = multi->slaves[master_slave].pcm->monotonic;
+	pcm->tstamp_type = multi->slaves[master_slave].pcm->tstamp_type;
 	snd_pcm_link_hw_ptr(pcm, multi->slaves[master_slave].pcm);
 	snd_pcm_link_appl_ptr(pcm, multi->slaves[master_slave].pcm);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_null.c b/src/pcm/pcm_null.c
index 655261f74e1f..f11a1020f7e3 100644
--- a/src/pcm/pcm_null.c
+++ b/src/pcm/pcm_null.c
@@ -100,7 +100,7 @@ static int snd_pcm_null_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
 	memset(status, 0, sizeof(*status));
 	status->state = null->state;
 	status->trigger_tstamp = null->trigger_tstamp;
-	gettimestamp(&status->tstamp, pcm->monotonic);
+	gettimestamp(&status->tstamp, pcm->tstamp_type);
 	status->avail = snd_pcm_null_avail_update(pcm);
 	status->avail_max = pcm->buffer_size;
 	return 0;
diff --git a/src/pcm/pcm_plug.c b/src/pcm/pcm_plug.c
index 7a6c2b99c639..5639b9ea8044 100644
--- a/src/pcm/pcm_plug.c
+++ b/src/pcm/pcm_plug.c
@@ -1127,7 +1127,7 @@ int snd_pcm_plug_open(snd_pcm_t **pcmp,
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
 	pcm->mmap_shadow = 1;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_link_hw_ptr(pcm, slave);
 	snd_pcm_link_appl_ptr(pcm, slave);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 2563d824ddb8..5e811bb7192a 100644
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -1069,7 +1069,7 @@ static int snd_pcm_rate_start(snd_pcm_t *pcm)
 	if (snd_pcm_state(rate->gen.slave) != SND_PCM_STATE_PREPARED)
 		return -EBADFD;
 
-	gettimestamp(&rate->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&rate->trigger_tstamp, pcm->tstamp_type);
 
 	avail = snd_pcm_mmap_playback_hw_avail(rate->gen.slave);
 	if (avail == 0) {
@@ -1372,7 +1372,7 @@ int snd_pcm_rate_open(snd_pcm_t **pcmp, const char *name,
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
 	pcm->mmap_rw = 1;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &rate->hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &rate->appl_ptr, -1, 0);
 	*pcmp = pcm;
diff --git a/src/pcm/pcm_route.c b/src/pcm/pcm_route.c
index 751e36f28fdf..2f0be38b1906 100644
--- a/src/pcm/pcm_route.c
+++ b/src/pcm/pcm_route.c
@@ -1122,7 +1122,7 @@ int snd_pcm_route_open(snd_pcm_t **pcmp, const char *name,
 	pcm->private_data = route;
 	pcm->poll_fd = slave->poll_fd;
 	pcm->poll_events = slave->poll_events;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &route->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &route->plug.appl_ptr, -1, 0);
 	err = route_load_ttable(&route->params, pcm->stream, tt_ssize, ttable, tt_cused, tt_sused);
diff --git a/src/pcm/pcm_share.c b/src/pcm/pcm_share.c
index 118ab2617780..97705447dd6d 100644
--- a/src/pcm/pcm_share.c
+++ b/src/pcm/pcm_share.c
@@ -971,7 +971,7 @@ static int snd_pcm_share_start(snd_pcm_t *pcm)
 	}
 	slave->running_count++;
 	_snd_pcm_share_update(pcm);
-	gettimestamp(&share->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&share->trigger_tstamp, pcm->tstamp_type);
  _end:
 	Pthread_mutex_unlock(&slave->mutex);
 	return err;
@@ -1126,7 +1126,7 @@ static void _snd_pcm_share_stop(snd_pcm_t *pcm, snd_pcm_state_t state)
 		return;
 	}
 #endif
-	gettimestamp(&share->trigger_tstamp, pcm->monotonic);
+	gettimestamp(&share->trigger_tstamp, pcm->tstamp_type);
 	if (pcm->stream == SND_PCM_STREAM_CAPTURE) {
 		snd_pcm_areas_copy(pcm->stopped_areas, 0,
 				   pcm->running_areas, 0,
@@ -1526,7 +1526,7 @@ int snd_pcm_share_open(snd_pcm_t **pcmp, const char *name, const char *sname,
 	pcm->private_data = share;
 	pcm->poll_fd = share->client_socket;
 	pcm->poll_events = stream == SND_PCM_STREAM_PLAYBACK ? POLLOUT : POLLIN;
-	pcm->monotonic = slave->pcm->monotonic;
+	pcm->tstamp_type = slave->pcm->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &share->hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &share->appl_ptr, -1, 0);
 
diff --git a/src/pcm/pcm_softvol.c b/src/pcm/pcm_softvol.c
index 5da92049cc88..c6cfd8896b26 100644
--- a/src/pcm/pcm_softvol.c
+++ b/src/pcm/pcm_softvol.c
@@ -903,7 +903,7 @@ int snd_pcm_softvol_open(snd_pcm_t **pcmp, const char *name,
 	 * an extra buffer.
 	 */
 	pcm->mmap_shadow = 1;
-	pcm->monotonic = slave->monotonic;
+	pcm->tstamp_type = slave->tstamp_type;
 	snd_pcm_set_hw_ptr(pcm, &svol->plug.hw_ptr, -1, 0);
 	snd_pcm_set_appl_ptr(pcm, &svol->plug.appl_ptr, -1, 0);
 	*pcmp = pcm;
-- 
2.0.1