+#include "protocol_wrappers.h"
+
+#define LOG_PREFIX "yokogawa-dlm"
+#define MAX_INSTRUMENT_VERSIONS 4
+
+#define RECEIVE_BUFFER_SIZE (4096)
+
+/* See Communication Interface User's Manual on p. 268 (:WAVeform:ALL:SEND?). */
+#define DLM_MAX_FRAME_LENGTH (12500)
+/* See Communication Interface User's Manual on p. 269 (:WAVeform:SEND?). */
+#define DLM_DIVISION_FOR_WORD_FORMAT (3200)
+#define DLM_DIVISION_FOR_BYTE_FORMAT (12.5)
+
+
+enum trigger_slopes {
+ SLOPE_POSITIVE,
+ SLOPE_NEGATIVE
+};
+
+struct scope_config {
+ const char *model_id[MAX_INSTRUMENT_VERSIONS];
+ const char *model_name[MAX_INSTRUMENT_VERSIONS];
+ const uint8_t analog_channels;
+ const uint8_t digital_channels;
+ const uint8_t pods;
+
+ const char *(*analog_names)[];
+ const char *(*digital_names)[];
+
+ const uint32_t (*devopts)[];
+ const uint8_t num_devopts;
+
+ const uint32_t (*analog_devopts)[];
+ const uint8_t num_analog_devopts;
+
+ const char *(*coupling_options)[];
+ const uint8_t num_coupling_options;
+
+ const char *(*trigger_sources)[];
+ const uint8_t num_trigger_sources;
+
+ const char *(*trigger_slopes)[];
+
+ const uint64_t (*timebases)[][2];
+ const uint8_t num_timebases;
+
+ const uint64_t (*vdivs)[][2];
+ const uint8_t num_vdivs;
+
+ const uint8_t num_xdivs;
+ const uint8_t num_ydivs;
+};
+
+struct analog_channel_state {
+ int coupling;
+
+ int vdiv;
+ float vertical_offset, waveform_range, waveform_offset;
+
+ gboolean state;
+};
+
+struct scope_state {
+ struct analog_channel_state *analog_states;
+ gboolean *digital_states;
+ gboolean *pod_states;
+
+ int timebase;
+ float horiz_triggerpos;
+
+ int trigger_source;
+ int trigger_slope;
+ uint64_t sample_rate;
+ uint32_t samples_per_frame;
+};
+
+/** Private, per-device-instance driver context. */
+struct dev_context {
+ void *model_config;
+ void *model_state;
+
+ struct sr_channel_group **analog_groups;
+ struct sr_channel_group **digital_groups;
+
+ GSList *enabled_channels;
+ GSList *current_channel;
+ uint64_t num_frames;
+
+ uint64_t frame_limit;
+
+ char receive_buffer[RECEIVE_BUFFER_SIZE];
+ gboolean data_pending;
+};
+
+/*--- api.c -----------------------------------------------------------------*/
+SR_PRIV int dlm_data_request(const struct sr_dev_inst *sdi);
+
+/*--- protocol.c ------------------------------------------------------------*/
+SR_PRIV int dlm_model_get(char *model_id, char **model_name, int *model_index);
+SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index);
+SR_PRIV int dlm_data_receive(int fd, int revents, void *cb_data);
+
+SR_PRIV void dlm_scope_state_destroy(struct scope_state *state);
+SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi);
+SR_PRIV int dlm_sample_rate_query(const struct sr_dev_inst *sdi);
+
+SR_PRIV int dlm_channel_data_request(const struct sr_dev_inst *sdi);