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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz> | |
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 | #include <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | #define SERIALCOMM "9600/8n1" | |
24 | ||
25 | static const uint32_t scanopts[] = { | |
26 | SR_CONF_CONN, | |
27 | SR_CONF_SERIALCOMM, | |
28 | }; | |
29 | ||
30 | static const uint32_t drvopts[] = { | |
31 | SR_CONF_POWER_SUPPLY, | |
32 | }; | |
33 | ||
34 | static const uint32_t devopts[] = { | |
35 | SR_CONF_VOLTAGE_TARGET | SR_CONF_SET | SR_CONF_LIST, | |
36 | SR_CONF_CURRENT_LIMIT | SR_CONF_SET | SR_CONF_LIST, | |
37 | SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_SET, | |
38 | }; | |
39 | ||
40 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
41 | { | |
42 | struct dev_context *devc; | |
43 | struct sr_dev_inst *sdi; | |
44 | struct sr_config *src; | |
45 | struct sr_serial_dev_inst *serial; | |
46 | GSList *l; | |
47 | const char *conn, *serialcomm; | |
48 | ||
49 | conn = serialcomm = NULL; | |
50 | ||
51 | for (l = options; l; l = l->next) { | |
52 | src = l->data; | |
53 | switch (src->key) { | |
54 | case SR_CONF_CONN: | |
55 | conn = g_variant_get_string(src->data, NULL); | |
56 | break; | |
57 | case SR_CONF_SERIALCOMM: | |
58 | serialcomm = g_variant_get_string(src->data, NULL); | |
59 | break; | |
60 | } | |
61 | } | |
62 | if (!conn) | |
63 | return NULL; | |
64 | if (!serialcomm) | |
65 | serialcomm = SERIALCOMM; | |
66 | ||
67 | /* | |
68 | * We cannot scan for this device because it is write-only. | |
69 | * So just check that the port parameters are valid and assume that | |
70 | * the device is there. | |
71 | */ | |
72 | ||
73 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
74 | ||
75 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
76 | return NULL; | |
77 | ||
78 | serial_close(serial); | |
79 | ||
80 | sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn); | |
81 | ||
82 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
83 | sdi->status = SR_ST_INACTIVE; | |
84 | sdi->vendor = g_strdup("Conrad"); | |
85 | sdi->model = g_strdup("DIGI 35 CPU"); | |
86 | devc = g_malloc0(sizeof(struct dev_context)); | |
87 | sr_sw_limits_init(&devc->limits); | |
88 | sdi->inst_type = SR_INST_SERIAL; | |
89 | sdi->conn = serial; | |
90 | sdi->priv = devc; | |
91 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1"); | |
92 | ||
93 | return std_scan_complete(di, g_slist_append(NULL, sdi)); | |
94 | } | |
95 | ||
96 | static int config_set(uint32_t key, GVariant *data, | |
97 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
98 | { | |
99 | double dblval; | |
100 | ||
101 | (void)cg; | |
102 | ||
103 | switch (key) { | |
104 | case SR_CONF_VOLTAGE_TARGET: | |
105 | dblval = g_variant_get_double(data); | |
106 | if ((dblval < 0.0) || (dblval > 35.0)) { | |
107 | sr_err("Voltage out of range (0 - 35.0)!"); | |
108 | return SR_ERR_ARG; | |
109 | } | |
110 | return send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5)); | |
111 | case SR_CONF_CURRENT_LIMIT: | |
112 | dblval = g_variant_get_double(data); | |
113 | if ((dblval < 0.00) || (dblval > 2.55)) { | |
114 | sr_err("Current out of range (0 - 2.55)!"); | |
115 | return SR_ERR_ARG; | |
116 | } | |
117 | return send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5)); | |
118 | case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED: | |
119 | if (g_variant_get_boolean(data)) | |
120 | return send_msg1(sdi, 'V', 900); | |
121 | else /* Constant current mode */ | |
122 | return send_msg1(sdi, 'V', 901); | |
123 | default: | |
124 | return SR_ERR_NA; | |
125 | } | |
126 | ||
127 | return SR_OK; | |
128 | } | |
129 | ||
130 | static int config_list(uint32_t key, GVariant **data, | |
131 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
132 | { | |
133 | switch (key) { | |
134 | case SR_CONF_SCAN_OPTIONS: | |
135 | case SR_CONF_DEVICE_OPTIONS: | |
136 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
137 | case SR_CONF_VOLTAGE_TARGET: | |
138 | *data = std_gvar_min_max_step(0.0, 35.0, 0.1); | |
139 | break; | |
140 | case SR_CONF_CURRENT_LIMIT: | |
141 | *data = std_gvar_min_max_step(0.0, 2.55, 0.01); | |
142 | break; | |
143 | default: | |
144 | return SR_ERR_NA; | |
145 | } | |
146 | ||
147 | return SR_OK; | |
148 | } | |
149 | ||
150 | static struct sr_dev_driver conrad_digi_35_cpu_driver_info = { | |
151 | .name = "conrad-digi-35-cpu", | |
152 | .longname = "Conrad DIGI 35 CPU", | |
153 | .api_version = 1, | |
154 | .init = std_init, | |
155 | .cleanup = std_cleanup, | |
156 | .scan = scan, | |
157 | .dev_list = std_dev_list, | |
158 | .dev_clear = std_dev_clear, | |
159 | .config_get = NULL, | |
160 | .config_set = config_set, | |
161 | .config_list = config_list, | |
162 | .dev_open = std_serial_dev_open, | |
163 | .dev_close = std_serial_dev_close, | |
164 | .dev_acquisition_start = std_dummy_dev_acquisition_start, | |
165 | .dev_acquisition_stop = std_dummy_dev_acquisition_stop, | |
166 | .context = NULL, | |
167 | }; | |
168 | SR_REGISTER_DEV_DRIVER(conrad_digi_35_cpu_driver_info); |