X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fgmc-mh-1x-2x%2Fprotocol.h;h=711dd1c043d179dc01835cbc6b7e6520a9c952fc;hb=61c39f54bbcae7bdde86ddb11b2fd0ff308d319b;hp=799421d092f85e54d6746de301110ebb328d4ecb;hpb=7b4edcb654d6b36da4369bac3688ad77f6132766;p=libsigrok.git

diff --git a/hardware/gmc-mh-1x-2x/protocol.h b/hardware/gmc-mh-1x-2x/protocol.h
index 799421d0..711dd1c0 100644
--- a/hardware/gmc-mh-1x-2x/protocol.h
+++ b/hardware/gmc-mh-1x-2x/protocol.h
@@ -34,16 +34,99 @@
 #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
 #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
 
+#define GMC_BUFSIZE  266
+
+/** Message ID bits 4, 5 */
+#define MSGID_MASK 0x30	/**< Mask to get message ID bits */
+#define MSGID_INF  0x00 /**< Start of message with device info */
+#define MSGID_D10  0x10	/**< Start of data message, non-displayed intermediate */
+#define MSGID_DTA  0x20 /**< Start of data message, displayed, averaged */
+#define MSGID_DATA 0x30	/**< Data byte in message */
+
+#define MSGC_MASK 0x0f	/**< Mask to get message byte contents */
+
+#define MSGSRC_MASK 0xc0 /**< Mask to get bits related to message source */
+
+#define bc(x) (x & MSGC_MASK) /**< Get contents from a byte */
+
+#define MASK_6BITS 0x3f /**< Mask lower six bits. */
+
+/** Internal multimeter model codes. In opposite to the multimeter models from
+ *  protocol (see decode_model()), these codes allow working with ranges.
+ */
+enum model {
+	SR_METRAHIT_NONE	= 0,	/**< Value for uninitialized variable */
+	SR_METRAHIT_12S		= 12,
+	SR_METRAHIT_13S14A	= 13,
+	SR_METRAHIT_14S		= 14,
+	SR_METRAHIT_15S		= 15,
+	SR_METRAHIT_16S		= 16,
+	SR_METRAHIT_16I		= 17,
+	SR_METRAHIT_16X = SR_METRAHIT_16I,  /**< All Metrahit 16 */
+	/* A Metrahit 17 exists, but seems not to have an IR interface. */
+	SR_METRAHIT_18S		= 18,
+	SR_METRAHIT_2X		= 20,	/**< For model type comparisons */
+	SR_METRAHIT_22SM	= 22,
+	SR_METRAHIT_23S		= 23,
+	SR_METRAHIT_24S		= 24,
+	SR_METRAHIT_25SM	= 25,
+	SR_METRAHIT_26S		= 26,
+	SR_METRAHIT_28S		= 28,
+	SR_METRAHIT_29S		= 29,
+};
+
+/** Convert GMC model code in send mode to sigrok-internal one. */
+SR_PRIV int sr_gmc_decode_model_sm(guchar mcode);
+
+/** Convert GMC model code in bidirectional mode to sigrok-internal one.
+    \param[in] mcode Model code.
+
+    \return Model code
+*/
+SR_PRIV int sr_gmc_decode_model_bidi(guchar mcode);
+
+/** Create 14-bytes (42 byte) message used in bidirectional mode.
+ *  \param[in] addr Target address. 0..15, 0=Broadcast.
+ *  \param[in] func Function code.
+ *  \param[in] params Further parameters, &char[9]. Unused bytes must be 0.
+ *  \param[out] buf &guchar[42] Output buffer (3*14).
+ *
+ */
+void create_msg_14(guchar addr, guchar func, guchar* params, guchar* buf);
+
+/** Get model string from sigrok-internal model code.
+ */
+SR_PRIV const char* sr_gmc_model_str(enum model mcode);
+
 /** Private, per-device-instance driver context. */
 struct dev_context {
 	/* Model-specific information */
+	enum model model;	/**< Model code. */
 
 	/* Acquisition settings */
+	uint64_t limit_samples;	/**< Target number of samples */
+	uint64_t limit_msec;	/**< Target sampling time */
+
+	/* Opaque pointer passed in by frontend. */
+	void *cb_data;
 
 	/* Operational state */
+	gboolean settings_ok;	/**< Settings msg received yet. */
+	int msg_type;	/**< Message type (MSGID_INF, ...). */
+	int msg_len;	/**< Message lengh (valid when msg, curr. type known).*/
+	int mq;		/**< Measured quantity */
+	int unit;		/**< Measured unit */
+	uint64_t mqflags;	/**< Measured quantity flags */
+	float value;		/**< Measured value */
+	float scale;		/**< Scale for value. */
+	int8_t scale1000;   /**< Additional scale factor 1000^x. */
+	gboolean vmains_29S;	/**< Measured ctmv is V mains (29S only). */
 
 	/* Temporary state across callbacks */
-
+	uint64_t num_samples;	/**< Current #samples for limit_samples */
+	GTimer* elapsed_msec;	/**< Used for sampling with limit_msec  */
+	unsigned char buf[GMC_BUFSIZE];	/**< Buffer for read callback */
+	int buflen;			/**< Data len in buf */
 };
 
 SR_PRIV int gmc_mh_1x_2x_receive_data(int fd, int revents, void *cb_data);