hp-3457a: Implement support for rear terminals and plug-in cards

[libsigrok.git] / src / hardware / hp-3457a / protocol.h

diff --git a/src/hardware/hp-3457a/protocol.h b/src/hardware/hp-3457a/protocol.h
index 64abadfd9fe55b4447dc4c6f36a820f06b0ae659..dda19a23610e7e75e7df82f579da648bd059cb80 100644 (file)
--- a/src/hardware/hp-3457a/protocol.h
+++ b/src/hardware/hp-3457a/protocol.h
@@ -38,6 +38,7 @@ struct rear_card_info {
        enum card_type type;
        const char *name;
        const char *cg_name;
+       unsigned int num_channels;
 };
 
 /* Possible states in an acquisition. */
@@ -46,6 +47,14 @@ enum acquisition_state {
        ACQ_REQUESTED_HIRES,
        ACQ_REQUESTED_RANGE,
        ACQ_GOT_MEASUREMENT,
+       ACQ_REQUESTED_CHANNEL_SYNC,
+       ACQ_GOT_CHANNEL_SYNC,
+};
+
+/* Channel connector (front terminals, or rear card. */
+enum channel_conn {
+       CONN_FRONT,
+       CONN_REAR,
 };
 
 /** Private, per-device-instance driver context. */
@@ -60,13 +69,23 @@ struct dev_context {
        enum sr_unit measurement_unit;
        uint64_t limit_samples;
        float nplc;
+       GSList *active_channels;
+       unsigned int num_active_channels;
+       struct sr_channel *current_channel;
 
        /* Operational state */
        enum acquisition_state acq_state;
+       enum channel_conn input_loc;
        uint64_t num_samples;
        double base_measurement;
        double hires_register;
        double measurement_range;
+       double last_channel_sync;
+};
+
+struct channel_context {
+       enum channel_conn location;
+       int index;
 };
 
 SR_PRIV const struct rear_card_info *hp_3457a_probe_rear_card(struct sr_scpi_dev_inst *scpi);
@@ -74,5 +93,9 @@ SR_PRIV int hp_3457a_receive_data(int fd, int revents, void *cb_data);
 SR_PRIV int hp_3457a_set_mq(const struct sr_dev_inst *sdi, enum sr_mq mq,
                            enum sr_mqflag mq_flags);
 SR_PRIV int hp_3457a_set_nplc(const struct sr_dev_inst *sdi, float nplc);
+SR_PRIV int hp_3457a_select_input(const struct sr_dev_inst *sdi,
+                                 enum channel_conn loc);
+SR_PRIV int hp_3457a_send_scan_list(const struct sr_dev_inst *sdi,
+                                   unsigned int *channels, size_t len);
 
 #endif