Updated to new timer API

src/Versions

@@ -88,3 +88,15 @@ ALSA_0.9.0rc8 {
     snd_pcm_status_get_htstamp;
 
 } ALSA_0.9.0rc4;
+
+ALSA_0.9.0 {
+  global:
+
+    snd_timer_query_info;
+    snd_timer_query_params;
+    snd_timer_query_status;
+    snd_timer_params_set_exclusive;
+    snd_timer_params_get_exclusive;
+    snd_timer_params_set_filter;
+    snd_timer_params_get_filter;
+} ALSA_0.9.0rc8;

src/timer/timer.c

@@ -466,16 +466,6 @@ const char *snd_timer_info_get_name(snd_timer_info_t * info)
 	return info->name;
 }
 
-/**
- * \brief get maximum timer ticks
- * \param info pointer to #snd_timer_info_t structure
- * \return maximum timer ticks
- */
-long snd_timer_info_get_ticks(snd_timer_info_t * info)
-{
-	assert(info);
-	return info->ticks;
-}
 
 /**
  * \brief get timer resolution in us
@@ -575,6 +565,40 @@ int snd_timer_params_get_auto_start(snd_timer_params_t * params)
 	return params->flags & SNDRV_TIMER_PSFLG_AUTO ? 1 : 0;
 }
 
+/**
+ * \brief set timer exclusive use
+ * \param params pointer to #snd_timer_params_t structure
+ */
+#ifndef DOXYGEN
+void INTERNAL(snd_timer_params_set_exclusive)(snd_timer_params_t * params, int exclusive)
+#else
+void snd_timer_params_set_exclusive(snd_timer_params_t * params, int exclusive)
+#endif
+{
+	assert(params);
+	if (exclusive)
+		params->flags |= SNDRV_TIMER_PSFLG_EXCLUSIVE;
+	else
+		params->flags &= ~SNDRV_TIMER_PSFLG_EXCLUSIVE;
+}
+default_symbol_version(__snd_timer_params_set_exclusive, snd_timer_params_set_exclusive, ALSA_0.9.0);
+
+/**
+ * \brief determine if timer has exclusive flag
+ * \param params pointer to #snd_timer_params_t structure
+ * \return nonzero if timer has exclusive flag
+ */
+#ifndef DOXYGEN
+int INTERNAL(snd_timer_params_get_exclusive)(snd_timer_params_t * params)
+#else
+int snd_timer_params_get_exclusive(snd_timer_params_t * params)
+#endif
+{
+	assert(params);
+	return params->flags & SNDRV_TIMER_PSFLG_EXCLUSIVE ? 1 : 0;
+}
+default_symbol_version(__snd_timer_params_get_exclusive, snd_timer_params_get_exclusive, ALSA_0.9.0);
+
 /**
  * \brief set timer ticks
  * \param params pointer to #snd_timer_params_t structure
@@ -617,6 +641,37 @@ long snd_timer_params_get_queue_size(snd_timer_params_t * params)
 	return params->queue_size;
 }
 
+/**
+ * \brief set timer event filter
+ * \param params pointer to #snd_timer_params_t structure
+ */
+#ifndef DOXYGEN
+void INTERNAL(snd_timer_params_set_filter)(snd_timer_params_t * params, unsigned int filter)
+#else
+void snd_timer_params_set_filter(snd_timer_params_t * params, unsigned int filter)
+#endif
+{
+	assert(params);
+	params->filter = filter;
+}
+default_symbol_version(__snd_timer_params_set_filter, snd_timer_params_set_filter, ALSA_0.9.0);
+
+/**
+ * \brief get timer event filter
+ * \param params pointer to #snd_timer_params_t structure
+ * \return timer event filter
+ */
+#ifndef DOXYGEN
+unsigned int INTERNAL(snd_timer_params_get_filter)(snd_timer_params_t * params)
+#else
+unsigned int snd_timer_params_get_filter(snd_timer_params_t * params)
+#endif
+{
+	assert(params);
+	return params->filter;
+}
+default_symbol_version(__snd_timer_params_get_filter, snd_timer_params_get_filter, ALSA_0.9.0);
+
 /**
  * \brief set parameters for timer handle
  * \param timer timer handle
@@ -796,3 +851,17 @@ ssize_t snd_timer_read(snd_timer_t *timer, void *buffer, size_t size)
 	assert(buffer || size == 0);
 	return timer->ops->read(timer, buffer, size);
 }
+
+/**
+ * \brief (DEPRECATED) get maximum timer ticks
+ * \param info pointer to #snd_timer_info_t structure
+ * \return maximum timer ticks
+ */
+long snd_timer_info_get_ticks(snd_timer_info_t * info)
+{
+	assert(info);
+	return 1;
+}
+#ifndef DOC_HIDDEN
+link_warning(snd_timer_info_get_ticks, "Warning: snd_timer_info_get_ticks is deprecated");
+#endif

src/timer/timer_hw.c

@@ -233,6 +233,15 @@ int snd_timer_hw_open(snd_timer_t **handle, const char *name, int dev_class, int
 		close(fd);
 		return -SND_ERROR_INCOMPATIBLE_VERSION;
 	}
+	if (mode & SND_TIMER_OPEN_TREAD) {
+		int arg = 1;
+		if (ioctl(fd, SNDRV_TIMER_IOCTL_TREAD, &arg) < 0) {
+			ret = -errno;
+			close(fd);
+			SNDERR("extended read is not supported (SNDRV_TIMER_IOCTL_TREAD)");
+			return ret;
+		}
+	}
 	memset(&sel, 0, sizeof(sel));
 	sel.id.dev_class = dev_class;
 	sel.id.dev_sclass = dev_sclass;

src/timer/timer_local.h

@@ -52,6 +52,9 @@ int snd_timer_hw_open(snd_timer_t **handle, const char *name, int dev_class, int
 typedef struct {
 	int (*close)(snd_timer_query_t *timer);
 	int (*next_device)(snd_timer_query_t *timer, snd_timer_id_t *tid);
+	int (*info)(snd_timer_query_t *timer, snd_timer_ginfo_t *info);
+	int (*params)(snd_timer_query_t *timer, snd_timer_gparams_t *info);
+	int (*status)(snd_timer_query_t *timer, snd_timer_gstatus_t *info);
 } snd_timer_query_ops_t;
 
 struct _snd_timer_query {

src/timer/timer_query.c

@@ -220,6 +220,56 @@ int snd_timer_query_next_device(snd_timer_query_t *timer, snd_timer_id_t *tid)
 	return timer->ops->next_device(timer, tid);
 }
 
+/**
+ * \brief obtain the timer global information
+ * \param timer timer handle
+ * \param info timer information
+ * \return 0 on success otherwise a negative error code
+ */
+#ifndef DOXYGEN
+int INTERNAL(snd_timer_query_info)(snd_timer_query_t *timer, snd_timer_ginfo_t *info)
+#else
+int snd_timer_query_info(snd_timer_query_t *timer, snd_timer_ginfo_t *info)
+#endif
+{
+  	assert(timer);
+  	assert(info);
+	return timer->ops->info(timer, info);
+}
+default_symbol_version(__snd_timer_query_info, snd_timer_query_info, ALSA_0.9.0);
+
+/**
+ * \brief set the timer global parameters
+ * \param timer timer handle
+ * \param params timer parameters
+ * \return 0 on success otherwise a negative error code
+ */
+#ifndef DOXYGEN
+int INTERNAL(snd_timer_query_params)(snd_timer_query_t *timer, snd_timer_gparams_t *params)
+#else
+int snd_timer_query_params(snd_timer_query_t *timer, snd_timer_gparams_t *params)
+#endif
+{
+  	assert(timer);
+  	assert(params);
+	return timer->ops->params(timer, params);
+}
+default_symbol_version(__snd_timer_query_params, snd_timer_query_params, ALSA_0.9.0);
+
+/**
+ * \brief get the timer global status
+ * \param timer timer handle
+ * \param status timer status
+ * \return 0 on success otherwise a negative error code
+ */
+int snd_timer_query_status(snd_timer_query_t *timer, snd_timer_gstatus_t *status)
+{
+  	assert(timer);
+  	assert(status);
+	return timer->ops->status(timer, status);
+}
+default_symbol_version(__snd_timer_query_status, snd_timer_query_status, ALSA_0.9.0);
+
 /**
  * \brief get size of the snd_timer_id_t structure in bytes
  * \return size of the snd_timer_id_t structure in bytes

src/timer/timer_query_hw.c

@@ -54,9 +54,39 @@ static int snd_timer_query_hw_next_device(snd_timer_query_t *handle, snd_timer_i
 	return 0;
 }
 
+static int snd_timer_query_hw_info(snd_timer_query_t *handle, snd_timer_ginfo_t *info)
+{
+	if (!handle || !info)
+		return -EINVAL;
+	if (ioctl(handle->poll_fd, SNDRV_TIMER_IOCTL_GINFO, info) < 0)
+		return -errno;
+	return 0;
+}
+
+static int snd_timer_query_hw_params(snd_timer_query_t *handle, snd_timer_gparams_t *params)
+{
+	if (!handle || !params)
+		return -EINVAL;
+	if (ioctl(handle->poll_fd, SNDRV_TIMER_IOCTL_GPARAMS, params) < 0)
+		return -errno;
+	return 0;
+}
+
+static int snd_timer_query_hw_status(snd_timer_query_t *handle, snd_timer_gstatus_t *status)
+{
+	if (!handle || !status)
+		return -EINVAL;
+	if (ioctl(handle->poll_fd, SNDRV_TIMER_IOCTL_GSTATUS, status) < 0)
+		return -errno;
+	return 0;
+}
+
 static snd_timer_query_ops_t snd_timer_query_hw_ops = {
 	close: snd_timer_query_hw_close,
 	next_device: snd_timer_query_hw_next_device,
+	info: snd_timer_query_hw_info,
+	params: snd_timer_query_hw_params,
+	status: snd_timer_query_hw_status
 };
 
 int snd_timer_query_hw_open(snd_timer_query_t **handle, const char *name, int mode)