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