int snd_ctl_elem_info_is_inactive(const snd_ctl_elem_info_t *obj);
int snd_ctl_elem_info_is_locked(const snd_ctl_elem_info_t *obj);
int snd_ctl_elem_info_is_owner(const snd_ctl_elem_info_t *obj);
-int snd_ctl_elem_info_is_indirect(const snd_ctl_elem_info_t *obj);
pid_t snd_ctl_elem_info_get_owner(const snd_ctl_elem_info_t *obj);
unsigned int snd_ctl_elem_info_get_count(const snd_ctl_elem_info_t *obj);
long snd_ctl_elem_info_get_min(const snd_ctl_elem_info_t *obj);
unsigned int snd_ctl_elem_info_get_items(const snd_ctl_elem_info_t *obj);
void snd_ctl_elem_info_set_item(snd_ctl_elem_info_t *obj, unsigned int val);
const char *snd_ctl_elem_info_get_item_name(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_get_dimensions(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_get_dimension(const snd_ctl_elem_info_t *obj, unsigned int idx);
void snd_ctl_elem_info_get_id(const snd_ctl_elem_info_t *obj, snd_ctl_elem_id_t *ptr);
unsigned int snd_ctl_elem_info_get_numid(const snd_ctl_elem_info_t *obj);
snd_ctl_elem_iface_t snd_ctl_elem_info_get_interface(const snd_ctl_elem_info_t *obj);
int card; /* card number */
unsigned char id[64]; /* timer identification */
unsigned char name[80]; /* timer name */
- unsigned long ticks; /* maximum ticks between interrupts */
+ unsigned long reserved0; /* reserved for future use */
unsigned long resolution; /* average period resolution in ns */
unsigned long resolution_min; /* minimal period resolution in ns */
unsigned long resolution_max; /* maximal period resolution in ns */
struct sndrv_timer_gparams {
struct sndrv_timer_id tid; /* requested timer ID */
- unsigned long period; /* requested minimal period in ns */
- unsigned long period_num; /* requested precise period resolution (in seconds) - numerator */
- unsigned long period_den; /* requested precise period resolution (in seconds) - denominator */
+ unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
+ unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
unsigned char reserved[32];
};
int card; /* card number */
unsigned char id[64]; /* timer identificator */
unsigned char name[80]; /* timer name */
- unsigned long ticks; /* maximum ticks between interrupts */
+ unsigned long reserved0; /* reserved for future use */
unsigned long resolution; /* average period resolution in ns */
unsigned char reserved[64]; /* reserved */
};
* *
****************************************************************************/
-#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 1)
+#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2)
struct sndrv_ctl_card_info {
int card; /* card number */
#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
-#define SNDRV_CTL_ELEM_ACCESS_INDIRECT (1<<31) /* indirect access */
+#define SNDRV_CTL_ELEM_ACCESS_DINDIRECT (1<<30) /* indirect access for matrix dimensions in the info structure */
+#define SNDRV_CTL_ELEM_ACCESS_INDIRECT (1<<31) /* indirect access for element value in the value structure */
/* for further details see the ACPI and PCI power management specification */
#define SNDRV_CTL_POWER_D0 0x0000 /* full On */
} enumerated;
unsigned char reserved[128];
} value;
- unsigned char reserved[64];
+ union {
+ unsigned short d[4]; /* dimensions */
+ unsigned short *d_ptr; /* indirect */
+ } dimen;
+ unsigned char reserved[64-4*sizeof(unsigned short)];
};
struct sndrv_ctl_elem_value {
snd_timer_params_set_filter;
snd_timer_params_get_filter;
} ALSA_0.9.0rc8;
+
+ALSA_0.9.3 {
+ global:
+
+ snd_ctl_elem_info_get_dimensions;
+ snd_ctl_elem_info_get_dimension;
+} ALSA_0.9.0;
}
/**
- * \brief Get info about values passing policy from a CTL element id/info
+ * \brief (DEPRECATED) Get info about values passing policy from a CTL element value
* \param obj CTL element id/info
* \return 0 if element value need to be passed by contents, 1 if need to be passed with a pointer
*/
assert(obj);
return !!(obj->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT);
}
+link_warning(snd_ctl_elem_info_is_indirect, "Warning: snd_ctl_elem_info_is_indirect is deprecated, do not use it");
/**
* \brief Get owner of a locked element
}
/**
+ * \brief Get count of dimensions for given element
+ * \param obj CTL element id/info
+ * \return zero value if no dimensions are defined, otherwise positive value with count of dimensions
+ */
+#ifndef DOXYGEN
+int INTERNAL(snd_ctl_elem_info_get_dimensions)(const snd_ctl_elem_info_t *obj)
+#else
+int snd_ctl_elem_info_get_dimensions(const snd_ctl_elem_info_t *obj)
+#endif
+{
+ int i;
+
+ assert(obj);
+ if (obj->access & SNDRV_CTL_ELEM_ACCESS_DINDIRECT)
+ return 0; /* FIXME: implement indirect access as well */
+ for (i = 3; i >= 0; i++)
+ if (obj->dimen.d[0])
+ break;
+ return i >= 0 ? i + 1 : 0;
+}
+use_default_symbol_version(__snd_ctl_elem_info_get_dimensions, snd_ctl_elem_info_get_dimensions, ALSA_0.9.3);
+
+/**
+ * \brief Get specified of dimension width for given element
+ * \param obj CTL element id/info
+ * \return zero value if no dimension width is defined, otherwise positive value with with of specified dimension
+ */
+#ifndef DOXYGEN
+int INTERNAL(snd_ctl_elem_info_get_dimension)(const snd_ctl_elem_info_t *obj, unsigned int idx)
+#else
+int snd_ctl_elem_info_get_dimension(const snd_ctl_elem_info_t *obj, unsigned int idx)
+#endif
+{
+ assert(obj);
+ if (obj->access & SNDRV_CTL_ELEM_ACCESS_DINDIRECT)
+ return 0; /* FIXME: implement indirect access as well */
+ if (idx >= 3)
+ return 0;
+ return obj->dimen.d[0];
+}
+use_default_symbol_version(__snd_ctl_elem_info_get_dimension, snd_ctl_elem_info_get_dimension, ALSA_0.9.3);
+
+/**
* \brief Get CTL element identifier of a CTL element id/info
* \param obj CTL element id/info
* \param ptr Pointer to returned CTL element identifier
#endif
#define SNDRV_FILE_CONTROL "/dev/snd/controlC%i"
-#define SNDRV_CTL_VERSION_MAX SNDRV_PROTOCOL_VERSION(2, 0, 0)
+#define SNDRV_CTL_VERSION_MAX SNDRV_PROTOCOL_VERSION(2, 0, 2)
typedef struct {
int card;
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