Merge branch 'topic/monotonic' into for-next

include/uapi/sound/asound.h

@@ -391,8 +391,8 @@ struct snd_pcm_sw_params {
 	snd_pcm_uframes_t silence_threshold;	/* min distance from noise for silence filling */
 	snd_pcm_uframes_t silence_size;		/* silence block size */
 	snd_pcm_uframes_t boundary;		/* pointers wrap point */
-	unsigned int tstamp_type;		/* timestamp type */
-	int pads;				/* alignment, reserved */
+	unsigned int proto;			/* protocol version */
+	unsigned int tstamp_type;		/* timestamp type (req. proto >= 2.0.12) */
 	unsigned char reserved[56];		/* reserved for future */
 };
 

sound/core/pcm_compat.c

@@ -101,7 +101,9 @@ struct snd_pcm_sw_params32 {
 	u32 silence_threshold;
 	u32 silence_size;
 	u32 boundary;
-	unsigned char reserved[64];
+	u32 proto;
+	u32 tstamp_type;
+	unsigned char reserved[56];
 };
 
 /* recalcuate the boundary within 32bit */
@@ -133,7 +135,9 @@ static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
 	    get_user(params.start_threshold, &src->start_threshold) ||
 	    get_user(params.stop_threshold, &src->stop_threshold) ||
 	    get_user(params.silence_threshold, &src->silence_threshold) ||
-	    get_user(params.silence_size, &src->silence_size))
+	    get_user(params.silence_size, &src->silence_size) ||
+	    get_user(params.tstamp_type, &src->tstamp_type) ||
+	    get_user(params.proto, &src->proto))
 		return -EFAULT;
 	/*
 	 * Check silent_size parameter.  Since we have 64bit boundary,

sound/core/pcm_native.c

@@ -543,7 +543,8 @@ static int snd_pcm_sw_params(struct snd_pcm_substream *substream,
 
 	if (params->tstamp_mode > SNDRV_PCM_TSTAMP_LAST)
 		return -EINVAL;
-	if (params->tstamp_type > SNDRV_PCM_TSTAMP_TYPE_LAST)
+	if (params->proto >= SNDRV_PROTOCOL_VERSION(2, 0, 12) &&
+	    params->tstamp_type > SNDRV_PCM_TSTAMP_TYPE_LAST)
 		return -EINVAL;
 	if (params->avail_min == 0)
 		return -EINVAL;
@@ -559,6 +560,7 @@ static int snd_pcm_sw_params(struct snd_pcm_substream *substream,
 	err = 0;
 	snd_pcm_stream_lock_irq(substream);
 	runtime->tstamp_mode = params->tstamp_mode;
+	if (params->proto >= SNDRV_PROTOCOL_VERSION(2, 0, 12))
 		runtime->tstamp_type = params->tstamp_type;
 	runtime->period_step = params->period_step;
 	runtime->control->avail_min = params->avail_min;