2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
5 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com> (code from atten-pps3xxx)
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 * <em>Motech LPS-30x series</em> power supply driver
26 #ifndef LIBSIGROK_HARDWARE_MOTECH_LPS_30X_PROTOCOL_H
27 #define LIBSIGROK_HARDWARE_MOTECH_LPS_30X_PROTOCOL_H
31 #include <libsigrok/libsigrok.h>
32 #include "libsigrok-internal.h"
34 SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat);
35 SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...);
37 #define LOG_PREFIX "motech-lps-30x"
39 #define LINELEN_MAX 50 /**< Max. line length for requests */
41 #define REQ_TIMEOUT_MS 250 /**< Timeout [ms] for single request. */
43 #define MAX_CHANNELS 3
46 LPS_UNKNOWN = 0,/**< Unknown model (used during detection process) */
47 LPS_301, /**< Motech/Amrel LPS-301, 1 output */
48 LPS_302, /**< Motech/Amrel LPS-302, 1 output */
49 LPS_303, /**< Motech/Amrel LPS-303, 1 output */
50 LPS_304, /**< Motech/Amrel LPS-304, 3 outputs */
51 LPS_305, /**< Motech/Amrel LPS-305, 3 outputs */
54 /** Channel specification */
61 /** Model properties specification */
62 struct lps_modelspec {
66 struct channel_spec channels[3];
69 /** Used to implement a little state machine to query all required values in a row. */
79 /** Status of a single channel. */
80 struct channel_status {
81 /* Channel information (struct channel_info*). data (struct) owned by sdi, just a reference to address a single channel. */
83 /* Received from device. */
84 gdouble output_voltage_last;
85 gdouble output_current_last;
86 gboolean output_enabled; /**< Also used when set. */
87 gboolean cc_mode; /**< Constant current mode. If false, constant voltage mode. */
88 /* Set by frontend. */
89 gdouble output_voltage_max;
90 gdouble output_current_max;
93 /** Private, per-device-instance driver context. */
95 /* Model-specific information */
96 const struct lps_modelspec *model;
98 /* Acquisition status */
99 gboolean acq_running; /**< Acquisition is running. */
100 uint64_t limit_samples; /**< Target number of samples */
101 uint64_t limit_msec; /**< Target sampling time */
102 acquisition_req acq_req; /**< Current request. */
103 uint8_t acq_req_pending; /**< Request pending. 0=none, 1=reply, 2=OK */
105 /* Operational state */
106 struct channel_status channel_status[MAX_CHANNELS];
107 guint8 tracking_mode; /**< 0=off, 1=Tracking from CH1, 2=Tracking from CH2. */
109 /* Temporary state across callbacks */
110 int64_t req_sent_at; /**< Request sent. */
111 uint64_t num_samples; /**< Current #samples for limit_samples */
112 GTimer *elapsed_msec; /**< Used for sampling with limit_msec */
113 gchar buf[LINELEN_MAX]; /**< Buffer for read callback */
114 int buflen; /**< Data len in buf */
117 SR_PRIV int motech_lps_30x_receive_data(int fd, int revents, void *cb_data);