/** Status/error codes returned by libsigrok functions. */
enum {
- SR_OK = 0, /**< No error. */
- SR_ERR = -1, /**< Generic/unspecified error. */
- SR_ERR_MALLOC = -2, /**< Malloc/calloc/realloc error. */
- SR_ERR_ARG = -3, /**< Function argument error. */
- SR_ERR_BUG = -4, /**< Errors hinting at internal bugs. */
- SR_ERR_SAMPLERATE = -5, /**< Incorrect samplerate. */
- SR_ERR_NA = -6, /**< Not applicable. */
- SR_ERR_DEV_CLOSED = -7, /**< Device is closed, but needs to be open. */
- SR_ERR_TIMEOUT = -8, /**< A timeout occurred. */
- SR_ERR_PROBE_GROUP= -9, /**< A probe group must be specified. */
+ SR_OK = 0, /**< No error. */
+ SR_ERR = -1, /**< Generic/unspecified error. */
+ SR_ERR_MALLOC = -2, /**< Malloc/calloc/realloc error. */
+ SR_ERR_ARG = -3, /**< Function argument error. */
+ SR_ERR_BUG = -4, /**< Errors hinting at internal bugs. */
+ SR_ERR_SAMPLERATE = -5, /**< Incorrect samplerate. */
+ SR_ERR_NA = -6, /**< Not applicable. */
+ SR_ERR_DEV_CLOSED = -7, /**< Device is closed, but must be open. */
+ SR_ERR_TIMEOUT = -8, /**< A timeout occurred. */
+ SR_ERR_CHANNEL_GROUP = -9, /**< A channel group must be specified. */
/*
* Note: When adding entries here, don't forget to also update the
/** Information on single probe. */
struct sr_probe {
- /** Number of probes, starting at 0. @deprecated The index field
- * will go: use g_slist_length(sdi->probes) instead. */
+ /** Number of probes, starting at 0. */
int index;
/** Probe type (SR_PROBE_LOGIC, ...) */
int type;
char *trigger;
};
-/** Structure for groups of probes that have common properties. */
-struct sr_probe_group {
- /** Name of the probe group. */
+/** Structure for groups of channels that have common properties. */
+struct sr_channel_group {
+ /** Name of the channel group. */
char *name;
- /** List of sr_probe structs of the probes belonging to this group. */
- GSList *probes;
+ /** List of sr_probe structs of the channels belonging to this group. */
+ GSList *channels;
/** Private data for driver use. */
void *priv;
};
/** Over-current protection (OCP) */
SR_CONF_OVER_CURRENT_PROTECTION,
+ /** Choice of clock edge for external clock ("r" or "f"). */
+ SR_CONF_CLOCK_EDGE,
+
/*--- Special stuff -------------------------------------------------*/
/** Scan options supported by the driver. */
char *version;
/** List of probes. */
GSList *probes;
- /** List of sr_probe_group structs */
- GSList *probe_groups;
+ /** List of sr_channel_group structs */
+ GSList *channel_groups;
/** Device instance connection data (used?) */
void *conn;
/** Device instance private data (used?) */
SR_ST_STOPPING,
};
-/** Device driver data */
+/** Device driver data. See also http://sigrok.org/wiki/Hardware_driver_API . */
struct sr_dev_driver {
/* Driver-specific */
- /** Driver name */
+ /** Driver name. Lowercase a-z, 0-9 and dashes (-) only. */
char *name;
- /** Long name, e.g. device name. */
+ /** Long name. Verbose driver name shown to user. */
char *longname;
/** API version (currently 1). */
int api_version;
- /** Init driver */
+ /** Called when driver is loaded, e.g. program startup. */
int (*init) (struct sr_context *sr_ctx);
- /** Free driver */
+ /** Called before driver is unloaded.
+ * Driver must free all resouces held by it. */
int (*cleanup) (void);
- /** Scan for devices */
+ /** Scan for devices. Driver should do all initialisation required.
+ * Can be called several times, e.g. with different port options.
+ * \retval NULL Error or no devices found.
+ * \retval other GSList of a struct sr_dev_inst for each device.
+ * Must be freed by caller!
+ */
GSList *(*scan) (GSList *options);
- /** Get device list */
+ /** Get list of device instances the driver knows about.
+ * \returns NULL or GSList of a struct sr_dev_inst for each device.
+ * Must not be freed by caller!
+ */
GSList *(*dev_list) (void);
+ /** Clear list of devices the driver knows about. */
int (*dev_clear) (void);
+ /** Query value of a configuration key in driver or given device instance.
+ * @see sr_config_get().
+ */
int (*config_get) (int id, GVariant **data,
const struct sr_dev_inst *sdi,
- const struct sr_probe_group *probe_group);
+ const struct sr_channel_group *cg);
+ /** Set value of a configuration key in driver or a given device instance.
+ * @see sr_config_set(). */
int (*config_set) (int id, GVariant *data,
const struct sr_dev_inst *sdi,
- const struct sr_probe_group *probe_group);
+ const struct sr_channel_group *cg);
+ /** Probe status change.
+ * @see sr_dev_probe_enable(), sr_dev_trigger_set(). */
int (*config_probe_set) (const struct sr_dev_inst *sdi,
struct sr_probe *probe, unsigned int changes);
+ /** Apply configuration settings to the device hardware.
+ * @see sr_config_commit().*/
int (*config_commit) (const struct sr_dev_inst *sdi);
+ /** List all possible values for a configuration key in a device instance.
+ * @see sr_config_list().
+ */
int (*config_list) (int info_id, GVariant **data,
const struct sr_dev_inst *sdi,
- const struct sr_probe_group *probe_group);
+ const struct sr_channel_group *cg);
/* Device-specific */
/** Open device */
int (*dev_open) (struct sr_dev_inst *sdi);
/** Close device */
int (*dev_close) (struct sr_dev_inst *sdi);
- /** Start data aquisition. */
+ /** Begin data acquisition on the specified device. */
int (*dev_acquisition_start) (const struct sr_dev_inst *sdi,
void *cb_data);
- /** Stop data aquisition. */
+ /** End data acquisition on the specified device. */
int (*dev_acquisition_stop) (struct sr_dev_inst *sdi,
void *cb_data);
/* Dynamic */
- /** Device driver private data */
+ /** Device driver private data. Initialized by init(). */
void *priv;
};
projects / libsigrok.git / blobdiff