/* Portability fixes for FreeBSD. */
#ifdef __FreeBSD__
#define LIBUSB_CLASS_APPLICATION 0xfe
+#define libusb_has_capability(x) 0
#define libusb_handle_events_timeout_completed(ctx, tv, c) \
libusb_handle_events_timeout(ctx, tv)
#endif
*/
const char *desc;
+ /**
+ * A NULL terminated array of strings containing a list of file name
+ * extensions typical for the input file format, or NULL if there is
+ * no typical extension for this file format.
+ */
+ const char *const *exts;
+
/**
* Zero-terminated list of metadata items the module needs to be able
* to identify an input stream. Can be all-zero, if the module cannot
*/
char *desc;
+ /**
+ * A NULL terminated array of strings containing a list of file name
+ * extensions typical for the input file format, or NULL if there is
+ * no typical extension for this file format.
+ */
+ const char *const *exts;
+
/**
* Returns a NULL-terminated list of options this module can take.
* Can be NULL, if the module has no options.
int (*cleanup) (struct sr_output *o);
};
+/** Transform module instance. */
+struct sr_transform {
+ /** A pointer to this transform's module. */
+ const struct sr_transform_module *module;
+
+ /**
+ * The device for which this transform module is used. This
+ * can be used by the module to find out channel names and numbers.
+ */
+ const struct sr_dev_inst *sdi;
+
+ /**
+ * A generic pointer which can be used by the module to keep internal
+ * state between calls into its callback functions.
+ */
+ void *priv;
+};
+
+struct sr_transform_module {
+ /**
+ * A unique ID for this transform module, suitable for use in
+ * command-line clients, [a-z0-9-]. Must not be NULL.
+ */
+ char *id;
+
+ /**
+ * A unique name for this transform module, suitable for use in GUI
+ * clients, can contain UTF-8. Must not be NULL.
+ */
+ const char *name;
+
+ /**
+ * A short description of the transform module. Must not be NULL.
+ *
+ * This can be displayed by frontends, e.g. when selecting
+ * which transform module(s) to add.
+ */
+ char *desc;
+
+ /**
+ * Returns a NULL-terminated list of options this transform module
+ * can take. Can be NULL, if the transform module has no options.
+ */
+ const struct sr_option *(*options) (void);
+
+ /**
+ * This function is called once, at the beginning of a stream.
+ *
+ * @param t Pointer to the respective 'struct sr_transform'.
+ * @param options Hash table of options for this transform module.
+ * Can be NULL if no options are to be used.
+ *
+ * @retval SR_OK Success
+ * @retval other Negative error code.
+ */
+ int (*init) (struct sr_transform *t, GHashTable *options);
+
+ /**
+ * This function is passed a pointer to every packet in the data feed.
+ *
+ * It can either return (in packet_out) a pointer to another packet
+ * (possibly the exact same packet it got as input), or NULL.
+ *
+ * @param t Pointer to the respective 'struct sr_transform'.
+ * @param packet_in Pointer to a datafeed packet.
+ * @param packet_out Pointer to the resulting datafeed packet after
+ * this function was run. If NULL, the transform
+ * module intentionally didn't output a new packet.
+ *
+ * @retval SR_OK Success
+ * @retval other Negative error code.
+ */
+ int (*receive) (const struct sr_transform *t,
+ struct sr_datafeed_packet *packet_in,
+ struct sr_datafeed_packet **packet_out);
+
+ /**
+ * This function is called after the caller is finished using
+ * the transform module, and can be used to free any internal
+ * resources the module may keep.
+ *
+ * @retval SR_OK Success
+ * @retval other Negative error code.
+ */
+ int (*cleanup) (struct sr_transform *t);
+};
+
#ifdef HAVE_LIBUSB_1_0
/** USB device instance */
struct sr_usb_dev_inst {
};
/* Generic device instances */
-SR_PRIV struct sr_dev_inst *sr_dev_inst_new(void);
SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
#ifdef HAVE_LIBUSB_1_0
GSList *owned_devs;
/** List of struct datafeed_callback pointers. */
GSList *datafeed_callbacks;
+ GSList *transforms;
struct sr_trigger *trigger;
GTimeVal starttime;
gboolean running;
int unitsize;
int cur_stage;
uint8_t *prev_sample;
+ uint8_t *pre_trigger_buffer;
+ uint8_t *pre_trigger_head;
+ int pre_trigger_size;
+ int pre_trigger_fill;
};
SR_PRIV struct soft_trigger_logic *soft_trigger_logic_new(
- const struct sr_dev_inst *sdi, struct sr_trigger *trigger);
+ const struct sr_dev_inst *sdi, struct sr_trigger *trigger,
+ int pre_trigger_samples);
SR_PRIV void soft_trigger_logic_free(struct soft_trigger_logic *st);
SR_PRIV int soft_trigger_logic_check(struct soft_trigger_logic *st, uint8_t *buf,
- int len);
+ int len, int *pre_trigger_samples);
/*--- hardware/serial.c -----------------------------------------------------*/