baylibre-acme: Driver implementation.

[libsigrok.git] / src / hardware / baylibre-acme / protocol.h

diff --git a/src/hardware/baylibre-acme/protocol.h b/src/hardware/baylibre-acme/protocol.h
index 599fdd98c27d179eedd6159d3a475e0ad0f62169..5252118815b7070af1e87c76cd7603db0f64247f 100644 (file)
--- a/src/hardware/baylibre-acme/protocol.h
+++ b/src/hardware/baylibre-acme/protocol.h
@@ -22,23 +22,65 @@
 
 #include <stdint.h>
 #include <glib.h>
+#include <unistd.h> /* pipe() */
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
 #define LOG_PREFIX "baylibre-acme"
 
+/* We support up to 8 energy/temperature probes. */
+#define MAX_PROBES             8
+
+/*
+ * Temperature probes can be connected to the last four ports on the
+ * ACME cape. When scanning, first look for temperature probes starting
+ * from this index.
+ */
+#define TEMP_PRB_START_INDEX   4
+
+#define ENRG_PROBE_NAME                "ina226"
+#define TEMP_PROBE_NAME                "tmp435"
+
+/* For the user we number the probes starting from 1. */
+#define PROBE_NUM(n) ((n)+1)
+
+enum probe_type {
+       PROBE_ENRG = 1,
+       PROBE_TEMP,
+};
+
+enum channel_type {
+       ENRG_PWR = 1,
+       ENRG_CURR,
+       ENRG_VOL,
+       TEMP_IN,
+       TEMP_OUT,
+};
+
 /** Private, per-device-instance driver context. */
 struct dev_context {
-       /* Model-specific information */
+       uint64_t samplerate;
+       uint64_t limit_samples;
+       uint64_t limit_msec;
 
-       /* Acquisition settings */
+       uint32_t num_channels;
+       uint64_t samples_read;
+       int64_t start_time;
+       int64_t last_sample_fin;
+       int pipe_fds[2];
+       GIOChannel *channel;
+};
 
-       /* Operational state */
+SR_PRIV uint8_t bl_acme_get_enrg_addr(int index);
+SR_PRIV uint8_t bl_acme_get_temp_addr(int index);
 
-       /* Temporary state across callbacks */
+SR_PRIV gboolean bl_acme_is_sane(void);
 
-};
+SR_PRIV gboolean bl_acme_detect_probe(unsigned int addr,
+                                     int prb_num, const char *prb_name);
+SR_PRIV gboolean bl_acme_register_probe(struct sr_dev_inst *sdi, int type,
+                                       unsigned int addr, int prb_num);
 
-SR_PRIV int baylibre_acme_receive_data(int fd, int revents, void *cb_data);
+SR_PRIV int bl_acme_receive_data(int fd, int revents, void *cb_data);
 
 #endif