appa-55ii: driver implementation with Live and Memory data source support

[libsigrok.git] / hardware / appa-55ii / protocol.h

diff --git a/hardware/appa-55ii/protocol.h b/hardware/appa-55ii/protocol.h
index 7288d1d4f051bfb4e2055e1f1540f8c5efbef100..d7c83858b1a73b91e88f4f5257c972fceac15318 100644 (file)
--- a/hardware/appa-55ii/protocol.h
+++ b/hardware/appa-55ii/protocol.h
@@ -34,18 +34,36 @@
 #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
 #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
 
+#define APPA_55II_NUM_PROBES  2
+#define APPA_55II_BUF_SIZE    (4 + 32 + 1)
+#define DEFAULT_DATA_SOURCE   DATA_SOURCE_LIVE
+
+enum {
+       DATA_SOURCE_LIVE,
+       DATA_SOURCE_MEMORY,
+};
+
 /** Private, per-device-instance driver context. */
 struct dev_context {
-       /* Model-specific information */
-
        /* Acquisition settings */
+       uint64_t limit_samples;   /**< The sampling limit (in number of samples). */
+       uint64_t limit_msec;      /**< The time limit (in milliseconds). */
+       gboolean data_source;     /**< Whether to read live samples or memory */
+       void *session_cb_data;    /**< Opaque pointer passed in by the frontend. */
 
        /* Operational state */
+       uint64_t num_samples;     /**< The number of already received samples. */
+       int64_t start_time;       /**< The time at which sampling started. */
 
        /* Temporary state across callbacks */
-
+       uint8_t buf[APPA_55II_BUF_SIZE];
+       unsigned int buf_len;
+       uint8_t log_buf[64];
+       unsigned int log_buf_len;
+       unsigned int num_log_records;
 };
 
+SR_PRIV gboolean appa_55ii_packet_valid(const uint8_t *buf);
 SR_PRIV int appa_55ii_receive_data(int fd, int revents, void *cb_data);
 
 #endif