X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fhantek-6xxx%2Fprotocol.h;fp=src%2Fhardware%2Fhantek-6xxx%2Fprotocol.h;h=6e87079c82efcdcccd598f58dd5fa035ed8dca28;hb=cc5ebc8a3d66e15ade82475ae890e0dafe9b4586;hp=7c8de938db05fcf4fad8e901313625ae708f59c3;hpb=10e0d374cb9518d2d5e6d876bd72888478fd1900;p=libsigrok.git

diff --git a/src/hardware/hantek-6xxx/protocol.h b/src/hardware/hantek-6xxx/protocol.h
index 7c8de938..6e87079c 100644
--- a/src/hardware/hantek-6xxx/protocol.h
+++ b/src/hardware/hantek-6xxx/protocol.h
@@ -31,6 +31,7 @@
 #define MAX_RENUM_DELAY_MS	3000
 
 #define DEFAULT_VOLTAGE		2
+#define DEFAULT_COUPLING        COUPLING_DC
 #define DEFAULT_SAMPLERATE	SR_MHZ(8)
 
 #define NUM_CHANNELS		2
@@ -71,6 +72,7 @@ enum control_requests {
 	SAMPLERATE_REG = 0xe2,
 	TRIGGER_REG    = 0xe3,
 	CHANNELS_REG   = 0xe4,
+	COUPLING_REG   = 0xe5,
 };
 
 enum states {
@@ -80,6 +82,11 @@ enum states {
 	STOPPING,
 };
 
+enum couplings {
+	COUPLING_AC = 0,
+	COUPLING_DC,
+};
+
 struct hantek_6xxx_profile {
 	/* VID/PID after cold boot */
 	uint16_t orig_vid;
@@ -116,6 +123,7 @@ struct dev_context {
 
 	gboolean ch_enabled[NUM_CHANNELS];
 	int voltage[NUM_CHANNELS];
+	int coupling[NUM_CHANNELS];
 	uint64_t samplerate;
 
 	uint64_t limit_msec;
@@ -130,6 +138,7 @@ SR_PRIV int hantek_6xxx_get_channeldata(const struct sr_dev_inst *sdi,
 SR_PRIV int hantek_6xxx_start_data_collecting(const struct sr_dev_inst *sdi);
 SR_PRIV int hantek_6xxx_stop_data_collecting(const struct sr_dev_inst *sdi);
 
+SR_PRIV int hantek_6xxx_update_coupling(const struct sr_dev_inst *sdi);
 SR_PRIV int hantek_6xxx_update_samplerate(const struct sr_dev_inst *sdi);
 SR_PRIV int hantek_6xxx_update_vdiv(const struct sr_dev_inst *sdi);
 SR_PRIV int hantek_6xxx_update_channels(const struct sr_dev_inst *sdi);