X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fsiglent-sds%2Fprotocol.h;h=89abaf640b9331c347897190c947f0936f3d82b6;hb=827139ef49bf0e2eab33beed8da2f1a4ce7c5a3b;hp=bee751413f67510b6595a2f0c2458c5da630341f;hpb=89f5fab97cc6c77da74a9262822eb00cabd287e1;p=libsigrok.git

diff --git a/src/hardware/siglent-sds/protocol.h b/src/hardware/siglent-sds/protocol.h
index bee75141..89abaf64 100644
--- a/src/hardware/siglent-sds/protocol.h
+++ b/src/hardware/siglent-sds/protocol.h
@@ -27,9 +27,141 @@
 
 #define LOG_PREFIX "siglent-sds"
 
+/* Size of acquisition buffers */
+//#define ACQ_BUFFER_SIZE (6000000)
+#define ACQ_BUFFER_SIZE (18000000)
+
+#define SIGLENT_HEADER_SIZE 363
+#define SIGLENT_DIG_HEADER_SIZE 346
+
+/* Maximum number of samples to retrieve at once. */
+#define ACQ_BLOCK_SIZE (30 * 1000)
+
+#define MAX_ANALOG_CHANNELS 4
+#define MAX_DIGITAL_CHANNELS 16
+
+#define DEVICE_STATE_STOPPED 0		/* Scope is in stopped state bit */
+#define DEVICE_STATE_DATA_ACQ 1		/* A new signal has been acquired bit */
+#define DEVICE_STATE_TRIG_RDY 8192	/* Trigger is ready bit */
+#define DEVICE_STATE_DATA_TRIG_RDY 8193	/* Trigger is ready bit */
+
+enum protocol_version {
+	SPO_MODEL,
+	NON_SPO_MODEL,
+	ESERIES,
+};
+
+enum data_source {
+	DATA_SOURCE_SCREEN,
+	DATA_SOURCE_HISTORY,
+};
+
+struct siglent_sds_vendor {
+	const char *name;
+	const char *full_name;
+};
+
+struct siglent_sds_series {
+	const struct siglent_sds_vendor *vendor;
+	const char *name;
+	enum protocol_version protocol;
+	uint64_t max_timebase[2];
+	uint64_t min_vdiv[2];
+	int num_horizontal_divs;
+	int num_vertical_divs;
+	int buffer_samples;
+};
+
+struct siglent_sds_model {
+	const struct siglent_sds_series *series;
+	const char *name;
+	uint64_t min_timebase[2];
+	unsigned int analog_channels;
+	gboolean has_digital;
+	unsigned int digital_channels;
+};
+
+enum wait_events {
+	WAIT_NONE,	/* Don't wait */
+	WAIT_TRIGGER,	/* Wait for trigger */
+	WAIT_BLOCK,	/* Wait for block data (only when reading sample mem) */
+	WAIT_STOP,	/* Wait for scope stopping (only single shots) */
+};
+
 struct dev_context {
+	/* Device model */
+	const struct siglent_sds_model *model;
+
+	/* Device properties */
+	const uint64_t (*timebases)[2];
+	uint64_t num_timebases;
+	const uint64_t (*vdivs)[2];
+	uint64_t num_vdivs;
+
+	/* Channel groups */
+	struct sr_channel_group **analog_groups;
+	struct sr_channel_group *digital_group;
+
+	/* Acquisition settings */
+	GSList *enabled_channels;
+	uint64_t limit_frames;
+	uint64_t average_samples;
+	gboolean average_enabled;
+	enum data_source data_source;
+	uint64_t analog_frame_size;
+	uint64_t digital_frame_size;
+	uint64_t num_samples;
+	uint64_t memory_depth_analog;
+	uint64_t memory_depth_digital;
+	long block_header_size;
+	float samplerate;
+
+	/* Device settings */
+	gboolean analog_channels[MAX_ANALOG_CHANNELS];
+	gboolean digital_channels[MAX_DIGITAL_CHANNELS];
+	gboolean la_enabled;
+	float timebase;
+	float attenuation[MAX_ANALOG_CHANNELS];
+	float vdiv[MAX_ANALOG_CHANNELS];
+	int vert_reference[MAX_ANALOG_CHANNELS];
+	float vert_offset[MAX_ANALOG_CHANNELS];
+	char *trigger_source;
+	float horiz_triggerpos;
+	char *trigger_slope;
+	float trigger_level;
+	char *coupling[MAX_ANALOG_CHANNELS];
+
+	/* Operational state */
+
+	/* Number of frames received in total. */
+	uint64_t num_frames;
+	/* GSList entry for the current channel. */
+	GSList *channel_entry;
+	/* Number of bytes received for current channel. */
+	uint64_t num_channel_bytes;
+	/* Number of bytes of block header read. */
+	uint64_t num_header_bytes;
+	/* Number of data blocks bytes already read. */
+	uint64_t num_block_bytes;
+	/* Number of data blocks read. */
+	int num_block_read;
+	/* What to wait for in *_receive. */
+	enum wait_events wait_event;
+	/* Trigger/block copying/stop waiting status. */
+	int wait_status;
+	/* Acq buffers used for reading from the scope and sending data to app. */
+	unsigned char *buffer;
+	float *data;
+	GArray *dig_buffer;
 };
 
-SR_PRIV int siglent_sds_receive_data(int fd, int revents, void *cb_data);
+SR_PRIV int siglent_sds_config_set(const struct sr_dev_inst *sdi,
+	const char *format, ...);
+SR_PRIV int siglent_sds_capture_start(const struct sr_dev_inst *sdi);
+SR_PRIV int siglent_sds_channel_start(const struct sr_dev_inst *sdi);
+SR_PRIV int siglent_sds_receive(int fd, int revents, void *cb_data);
+SR_PRIV int siglent_sds_get_dev_cfg(const struct sr_dev_inst *sdi);
+SR_PRIV int siglent_sds_get_dev_cfg_vertical(const struct sr_dev_inst *sdi);
+SR_PRIV int siglent_sds_get_dev_cfg_horizontal(const struct sr_dev_inst *sdi);
 
 #endif