X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Flibsigrok-internal.h;h=b614c93d0bdc039407a345cdc0db0d844103abcf;hb=63eec380738b001cf85242cc8f3b370970bd8d71;hp=339c43bcf7c93417f0e83b994d0ff057f53f7634;hpb=daa895cba3836f3bd5e02b845f85e23854dff820;p=libsigrok.git

diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
index 339c43bc..b614c93d 100644
--- a/src/libsigrok-internal.h
+++ b/src/libsigrok-internal.h
@@ -74,6 +74,16 @@ static inline uint8_t read_u8(const uint8_t *p)
 }
 #define R8(x)	read_u8((const uint8_t *)(x))
 
+/**
+ * Read an 8 bits signed integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding signed integer
+ */
+static inline int8_t read_i8(const uint8_t *p)
+{
+	return (int8_t)p[0];
+}
+
 /**
  * Read a 16 bits big endian unsigned integer out of memory.
  * @param x a pointer to the input memory
@@ -357,6 +367,28 @@ static inline float read_fltle(const uint8_t *p)
 }
 #define RLFL(x) read_fltle((const uint8_t *)(x))
 
+/**
+ * Read a 64 bits big endian float out of memory (double precision).
+ * @param x a pointer to the input memory
+ * @return the corresponding floating point value
+ */
+static inline double read_dblbe(const uint8_t *p)
+{
+	/*
+	 * Implementor's note: Strictly speaking the "union" trick
+	 * is not portable. But this phrase was found to work on the
+	 * project's supported platforms, and serve well until a more
+	 * appropriate phrase is found.
+	 */
+	union { uint64_t u64; double flt; } u;
+	double f;
+
+	u.u64 = read_u64be(p);
+	f = u.flt;
+
+	return f;
+}
+
 /**
  * Read a 64 bits little endian float out of memory (double precision).
  * @param x a pointer to the input memory
@@ -519,6 +551,23 @@ static inline uint8_t read_u8_inc(const uint8_t **p)
 	return v;
 }
 
+/**
+ * Read signed 8bit integer from raw memory, increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved integer value, signed.
+ */
+static inline int8_t read_i8_inc(const uint8_t **p)
+{
+	int8_t v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_i8(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
 /**
  * Read unsigned 16bit integer from raw memory (big endian format), increment read position.
  * @param[in, out] p Pointer into byte stream.
@@ -554,17 +603,34 @@ static inline uint16_t read_u16le_inc(const uint8_t **p)
 }
 
 /**
- * Read unsigned 32bit integer from raw memory (big endian format), increment read position.
+ * Read signed 16bit integer from raw memory (big endian format), increment read position.
  * @param[in, out] p Pointer into byte stream.
- * @return Retrieved integer value, unsigned.
+ * @return Retrieved integer value, signed.
  */
-static inline uint32_t read_u32be_inc(const uint8_t **p)
+static inline int16_t read_i16be_inc(const uint8_t **p)
 {
-	uint32_t v;
+	int16_t v;
 
 	if (!p || !*p)
 		return 0;
-	v = read_u32be(*p);
+	v = read_i16be(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
+/**
+ * Read signed 16bit integer from raw memory (little endian format), increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved integer value, signed.
+ */
+static inline int16_t read_i16le_inc(const uint8_t **p)
+{
+	int16_t v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_i16le(*p);
 	*p += sizeof(v);
 
 	return v;
@@ -587,6 +653,23 @@ static inline uint32_t read_u24le_inc(const uint8_t **p)
 	return v;
 }
 
+/**
+ * Read unsigned 32bit integer from raw memory (big endian format), increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved integer value, unsigned.
+ */
+static inline uint32_t read_u32be_inc(const uint8_t **p)
+{
+	uint32_t v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_u32be(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
 /**
  * Read unsigned 32bit integer from raw memory (little endian format), increment read position.
  * @param[in, out] p Pointer into byte stream.
@@ -604,6 +687,40 @@ static inline uint32_t read_u32le_inc(const uint8_t **p)
 	return v;
 }
 
+/**
+ * Read signed 32bit integer from raw memory (big endian format), increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved integer value, signed.
+ */
+static inline int32_t read_i32be_inc(const uint8_t **p)
+{
+	int32_t v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_i32be(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
+/**
+ * Read signed 32bit integer from raw memory (little endian format), increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved integer value, signed.
+ */
+static inline int32_t read_i32le_inc(const uint8_t **p)
+{
+	int32_t v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_i32le(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
 /**
  * Read unsigned 64bit integer from raw memory (big endian format), increment read position.
  * @param[in, out] p Pointer into byte stream.
@@ -638,6 +755,23 @@ static inline uint64_t read_u64le_inc(const uint8_t **p)
 	return v;
 }
 
+/**
+ * Read 32bit float from raw memory (big endian format), increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved float value.
+ */
+static inline float read_fltbe_inc(const uint8_t **p)
+{
+	float v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_fltbe(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
 /**
  * Read 32bit float from raw memory (little endian format), increment read position.
  * @param[in, out] p Pointer into byte stream.
@@ -655,6 +789,23 @@ static inline float read_fltle_inc(const uint8_t **p)
 	return v;
 }
 
+/**
+ * Read 64bit float from raw memory (big endian format), increment read position.
+ * @param[in, out] p Pointer into byte stream.
+ * @return Retrieved float value.
+ */
+static inline double read_dblbe_inc(const uint8_t **p)
+{
+	double v;
+
+	if (!p || !*p)
+		return 0;
+	v = read_dblbe(*p);
+	*p += sizeof(v);
+
+	return v;
+}
+
 /**
  * Read 64bit float from raw memory (little endian format), increment read position.
  * @param[in, out] p Pointer into byte stream.
@@ -1608,6 +1759,8 @@ SR_PRIV int std_cg_idx(const struct sr_channel_group *cg, struct sr_channel_grou
 SR_PRIV int std_dummy_set_params(struct sr_serial_dev_inst *serial,
 	int baudrate, int bits, int parity, int stopbits,
 	int flowcontrol, int rts, int dtr);
+SR_PRIV int std_dummy_set_handshake(struct sr_serial_dev_inst *serial,
+	int rts, int dtr);
 
 /*--- resource.c ------------------------------------------------------------*/
 
@@ -1692,6 +1845,8 @@ SR_PRIV int serial_set_read_chunk_cb(struct sr_serial_dev_inst *serial,
 		serial_rx_chunk_callback cb, void *cb_data);
 SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
 		int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
+SR_PRIV int serial_set_handshake(struct sr_serial_dev_inst *serial,
+		int rts, int dtr);
 SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
 		const char *paramstr);
 SR_PRIV int serial_readline(struct sr_serial_dev_inst *serial, char **buf,
@@ -1732,6 +1887,8 @@ struct ser_lib_functions {
 	int (*set_params)(struct sr_serial_dev_inst *serial,
 			int baudrate, int bits, int parity, int stopbits,
 			int flowcontrol, int rts, int dtr);
+	int (*set_handshake)(struct sr_serial_dev_inst *serial,
+			int rts, int dtr);
 	int (*setup_source_add)(struct sr_session *session,
 			struct sr_serial_dev_inst *serial,
 			int events, int timeout,
@@ -2175,6 +2332,20 @@ SR_PRIV gboolean sr_brymen_bm25x_packet_valid(const uint8_t *buf);
 SR_PRIV int sr_brymen_bm25x_parse(const uint8_t *buf, float *floatval,
 			     struct sr_datafeed_analog *analog, void *info);
 
+/*--- dmm/bm52x.c -----------------------------------------------------------*/
+
+#define BRYMEN_BM52X_PACKET_SIZE 24
+#define BRYMEN_BM52X_DISPLAY_COUNT 2
+
+struct brymen_bm52x_info { size_t ch_idx; };
+
+#ifdef HAVE_SERIAL_COMM
+SR_PRIV int sr_brymen_bm52x_packet_request(struct sr_serial_dev_inst *serial);
+#endif
+SR_PRIV gboolean sr_brymen_bm52x_packet_valid(const uint8_t *buf);
+SR_PRIV int sr_brymen_bm52x_parse(const uint8_t *buf, float *floatval,
+		struct sr_datafeed_analog *analog, void *info);
+
 /*--- dmm/bm86x.c -----------------------------------------------------------*/
 
 #define BRYMEN_BM86X_PACKET_SIZE 24
@@ -2392,7 +2563,7 @@ struct sr_sw_limits {
 	uint64_t start_time;
 };
 
-SR_PRIV int sr_sw_limits_config_get(struct sr_sw_limits *limits, uint32_t key,
+SR_PRIV int sr_sw_limits_config_get(const struct sr_sw_limits *limits, uint32_t key,
 	GVariant **data);
 SR_PRIV int sr_sw_limits_config_set(struct sr_sw_limits *limits, uint32_t key,
 	GVariant *data);