Reorganize project tree.

[libsigrok.git] / src / hardware / norma-dmm / protocol.h

diff --git a/src/hardware/norma-dmm/protocol.h b/src/hardware/norma-dmm/protocol.h
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+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
+
+#include <stdint.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <math.h>
+#include <glib.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+/** @file
+ *  Norma DM9x0/Siemens B102x DMMs driver.
+ *  @internal
+ */
+
+#define LOG_PREFIX "norma-dmm"
+
+#define NMADMM_BUFSIZE  256
+
+#define NMADMM_TIMEOUT_MS 2000 /**< Request timeout. */
+
+/** Norma DMM request types (used ones only, the DMMs support about 50). */
+enum {
+       NMADMM_REQ_IDN = 0,     /**< Request identity */
+       NMADMM_REQ_STATUS,      /**< Request device status (value + ...) */
+};
+
+/** Defines requests used to communicate with device. */
+struct nmadmm_req {
+       int req_type;           /**< Request type. */
+       const char *req_str;    /**< Request string. */
+};
+
+/** Strings for requests. */
+extern const struct nmadmm_req nmadmm_requests[];
+
+/** Private, per-device-instance driver context. */
+struct dev_context {
+       /* Model-specific information */
+       char *version;          /**< Version string */
+       int type;               /**< DM9x0, e.g. 5 = DM950 */
+
+       /* 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 */
+       int last_req;                   /**< Last request. */
+       int64_t req_sent_at;            /**< Request sent. */
+       gboolean last_req_pending;      /**< Last request not answered yet. */
+       int lowbatt;                    /**< Low battery. 1=low, 2=critical. */
+
+       /* Temporary state across callbacks */
+       uint64_t num_samples;           /**< Current #samples. */
+       GTimer *elapsed_msec;           /**< Used for limit_msec */
+       uint8_t buf[NMADMM_BUFSIZE];    /**< Buffer for read callback */
+       int buflen;                     /**< Data len in buf */
+};
+
+SR_PRIV int norma_dmm_receive_data(int fd, int revents, void *cb_data);
+SR_PRIV int xgittoint(char xgit);
+
+#endif