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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2018 Bastian Schmitz <bastian.schmitz@udo.edu> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef LIBSIGROK_HARDWARE_GWINSTEK_GPD_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_GWINSTEK_GPD_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <glib.h> | |
25 | #include <libsigrok/libsigrok.h> | |
26 | #include "libsigrok-internal.h" | |
27 | ||
28 | #define LOG_PREFIX "gwinstek-gpd" | |
29 | ||
30 | enum { | |
31 | GPD_2303S, | |
32 | GPD_3303S, | |
33 | }; | |
34 | ||
35 | /* Maximum number of output channels handled by this driver. */ | |
36 | #define MAX_CHANNELS 2 | |
37 | ||
38 | #define CHANMODE_INDEPENDENT (1 << 0) | |
39 | #define CHANMODE_SERIES (1 << 1) | |
40 | #define CHANMODE_PARALLEL (1 << 2) | |
41 | ||
42 | struct channel_spec { | |
43 | /* Min, max, step. */ | |
44 | gdouble voltage[3]; | |
45 | gdouble current[3]; | |
46 | }; | |
47 | ||
48 | struct gpd_model { | |
49 | int modelid; | |
50 | const char *name; | |
51 | int channel_modes; | |
52 | unsigned int num_channels; | |
53 | struct channel_spec channels[MAX_CHANNELS]; | |
54 | }; | |
55 | ||
56 | struct per_channel_config { | |
57 | /* Received from device. */ | |
58 | float output_voltage_last; | |
59 | float output_current_last; | |
60 | /* Set by frontend. */ | |
61 | float output_voltage_max; | |
62 | float output_current_max; | |
63 | }; | |
64 | ||
65 | struct dev_context { | |
66 | /* Received from device. */ | |
67 | gboolean output_enabled; | |
68 | int64_t req_sent_at; | |
69 | gboolean reply_pending; | |
70 | ||
71 | struct sr_sw_limits limits; | |
72 | int channel_mode; | |
73 | struct per_channel_config *config; | |
74 | const struct gpd_model *model; | |
75 | }; | |
76 | ||
77 | SR_PRIV int gpd_send_cmd(struct sr_serial_dev_inst *serial, const char *cmd, ...); | |
78 | SR_PRIV int gpd_receive_data(int fd, int revents, void *cb_data); | |
79 | SR_PRIV int gpd_receive_reply(struct sr_serial_dev_inst *serial, char *buf, int buflen); | |
80 | ||
81 | #endif |