X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fcem-dt-885x%2Fprotocol.h;h=233ef8603876d103e0c403cd23daca8ed3e06303;hb=43cd4637285833706f8a404ca027bcf0ee75b9ae;hp=6351aa4b02c670d477166091c7fa9dd96942fe6a;hpb=7fb8279c9b7e1e7f564725970bbafff74f5d2394;p=libsigrok.git

diff --git a/hardware/cem-dt-885x/protocol.h b/hardware/cem-dt-885x/protocol.h
index 6351aa4b..233ef860 100644
--- a/hardware/cem-dt-885x/protocol.h
+++ b/hardware/cem-dt-885x/protocol.h
@@ -25,30 +25,119 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
-/* Message logging helpers with subsystem-specific prefix string. */
-#define LOG_PREFIX "cem-dt-885x: "
-#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
-#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
-#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
-#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
-#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
-#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
+#define LOG_PREFIX "cem-dt-885x"
+
+/* When retrieving samples from device memory, group this many
+ * together into a sigrok packet. */
+#define SAMPLES_PER_PACKET 50
+
+/* Various temporary storage, at least 8 bytes. */
+#define BUF_SIZE SAMPLES_PER_PACKET * 2
+
+/* When in hold mode, force the last measurement out at this interval.
+ * We're using 50ms, which duplicates the non-hold 20Hz update rate. */
+#define HOLD_REPEAT_INTERVAL 50 * 1000
+
+enum {
+	TOKEN_WEIGHT_TIME_FAST = 0x02,
+	TOKEN_WEIGHT_TIME_SLOW = 0x03,
+	TOKEN_HOLD_MAX = 0x04,
+	TOKEN_HOLD_MIN = 0x05,
+	TOKEN_TIME = 0x06,
+	TOKEN_MEAS_RANGE_OVER = 0x07,
+	TOKEN_MEAS_RANGE_UNDER = 0x08,
+	TOKEN_STORE_FULL = 0x09,
+	TOKEN_RECORDING_ON = 0x0a,
+	TOKEN_MEAS_WAS_READOUT = 0x0b,
+	TOKEN_MEAS_WAS_BARGRAPH = 0x0c,
+	TOKEN_MEASUREMENT = 0xd,
+	TOKEN_HOLD_NONE = 0x0e,
+	TOKEN_BATTERY_LOW = 0x0f,
+	TOKEN_MEAS_RANGE_OK = 0x11,
+	TOKEN_STORE_OK = 0x19,
+	TOKEN_RECORDING_OFF = 0x1a,
+	TOKEN_WEIGHT_FREQ_A = 0x1b,
+	TOKEN_WEIGHT_FREQ_C = 0x1c,
+	TOKEN_BATTERY_OK = 0x1f,
+	TOKEN_MEAS_RANGE_30_80 = 0x30,
+	TOKEN_MEAS_RANGE_30_130 = 0x40,
+	TOKEN_MEAS_RANGE_50_100 = 0x4b,
+	TOKEN_MEAS_RANGE_80_130 = 0x4c,
+};
+
+enum {
+	CMD_TOGGLE_RECORDING = 0x55,
+	CMD_TOGGLE_WEIGHT_FREQ = 0x99,
+	CMD_TOGGLE_WEIGHT_TIME = 0x77,
+	CMD_TOGGLE_HOLD_MAX_MIN = 0x11,
+	CMD_TOGGLE_MEAS_RANGE = 0x88,
+	CMD_TOGGLE_POWER_OFF = 0x33,
+	CMD_TRANSFER_MEMORY = 0xac,
+};
+
+enum {
+	RECORD_DBA = 0xaa,
+	RECORD_DBC = 0xcc,
+	RECORD_DATA = 0xac,
+	RECORD_END = 0xdd,
+};
+
+enum {
+	DATA_SOURCE_LIVE,
+	DATA_SOURCE_MEMORY,
+};
 
 /** Private, per-device-instance driver context. */
 struct dev_context {
-	/* Model-specific information */
+	/* Device state */
+	uint64_t cur_mqflags;
+	int recording;
+	int cur_meas_range;
+	int cur_data_source;
 
 	/* Acquisition settings */
 	uint64_t limit_samples;
 
 	/* Operational state */
-	unsigned int num_samples;
-	unsigned char stream_buf[5];
+	int state;
+	uint64_t num_samples;
+	gboolean enable_data_source_memory;
 
 	/* Temporary state across callbacks */
+	void *cb_data;
+	unsigned char cmd;
+	unsigned char token;
+	int buf_len;
+	unsigned char buf[BUF_SIZE];
+	float last_spl;
+	gint64 hold_last_sent;
+};
 
+/* Parser state machine. */
+enum {
+	ST_INIT,
+	ST_GET_TOKEN,
+	ST_GET_DATA,
+	ST_GET_LOG_HEADER,
+	ST_GET_LOG_RECORD_META,
+	ST_GET_LOG_RECORD_DATA,
 };
 
 SR_PRIV int cem_dt_885x_receive_data(int fd, int revents, void *cb_data);
+SR_PRIV int cem_dt_885x_recording_set(const struct sr_dev_inst *sdi, gboolean start);
+SR_PRIV gboolean cem_dt_885x_recording_get(const struct sr_dev_inst *sdi,
+		int *state);
+SR_PRIV int cem_dt_885x_weight_freq_get(const struct sr_dev_inst *sdi);
+SR_PRIV int cem_dt_885x_weight_freq_set(const struct sr_dev_inst *sdi, int freqw);
+SR_PRIV int cem_dt_885x_weight_time_get(const struct sr_dev_inst *sdi);
+SR_PRIV int cem_dt_885x_weight_time_set(const struct sr_dev_inst *sdi, int timew);
+SR_PRIV int cem_dt_885x_holdmode_get(const struct sr_dev_inst *sdi,
+		gboolean *holdmode);
+SR_PRIV int cem_dt_885x_holdmode_set(const struct sr_dev_inst *sdi, int holdmode);
+SR_PRIV int cem_dt_885x_meas_range_get(const struct sr_dev_inst *sdi,
+		uint64_t *low, uint64_t *high);
+SR_PRIV int cem_dt_885x_meas_range_set(const struct sr_dev_inst *sdi,
+		uint64_t low, uint64_t high);
+SR_PRIV int cem_dt_885x_power_off(const struct sr_dev_inst *sdi);
 
 #endif