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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 devopts[] = { | |
39 | SR_CONF_POWER_SUPPLY, | |
40 | SR_CONF_VOLTAGE | SR_CONF_SET, | |
41 | SR_CONF_CURRENT | SR_CONF_SET, | |
42 | SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_SET, | |
43 | }; | |
44 | ||
45 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
46 | { | |
47 | struct sr_dev_inst *sdi; | |
48 | struct sr_config *src; | |
49 | struct sr_serial_dev_inst *serial; | |
50 | GSList *l; | |
51 | const char *conn, *serialcomm; | |
52 | ||
53 | conn = serialcomm = NULL; | |
54 | ||
55 | for (l = options; l; l = l->next) { | |
56 | src = l->data; | |
57 | switch (src->key) { | |
58 | case SR_CONF_CONN: | |
59 | conn = g_variant_get_string(src->data, NULL); | |
60 | break; | |
61 | case SR_CONF_SERIALCOMM: | |
62 | serialcomm = g_variant_get_string(src->data, NULL); | |
63 | break; | |
64 | } | |
65 | } | |
66 | if (!conn) | |
67 | return NULL; | |
68 | if (!serialcomm) | |
69 | serialcomm = SERIALCOMM; | |
70 | ||
71 | /* | |
72 | * We cannot scan for this device because it is write-only. | |
73 | * So just check that the port parameters are valid and assume that | |
74 | * the device is there. | |
75 | */ | |
76 | ||
77 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
78 | ||
79 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
80 | return NULL; | |
81 | ||
82 | serial_flush(serial); | |
83 | serial_close(serial); | |
84 | ||
85 | sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn); | |
86 | ||
87 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
88 | sdi->status = SR_ST_INACTIVE; | |
89 | sdi->vendor = g_strdup("Conrad"); | |
90 | sdi->model = g_strdup("DIGI 35 CPU"); | |
91 | sdi->conn = serial; | |
92 | sdi->priv = NULL; | |
93 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1"); | |
94 | ||
95 | return std_scan_complete(di, g_slist_append(NULL, sdi)); | |
96 | } | |
97 | ||
98 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
99 | const struct sr_channel_group *cg) | |
100 | { | |
101 | int ret; | |
102 | double dblval; | |
103 | ||
104 | (void)cg; | |
105 | ||
106 | if (sdi->status != SR_ST_ACTIVE) | |
107 | return SR_ERR_DEV_CLOSED; | |
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 | int ret; | |
143 | ||
144 | (void)sdi; | |
145 | (void)cg; | |
146 | ||
147 | ret = SR_OK; | |
148 | switch (key) { | |
149 | case SR_CONF_SCAN_OPTIONS: | |
150 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
151 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
152 | break; | |
153 | case SR_CONF_DEVICE_OPTIONS: | |
154 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
155 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
156 | break; | |
157 | default: | |
158 | return SR_ERR_NA; | |
159 | } | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
164 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
165 | { | |
166 | if (sdi->status != SR_ST_ACTIVE) | |
167 | return SR_ERR_DEV_CLOSED; | |
168 | ||
169 | return SR_OK; | |
170 | } | |
171 | ||
172 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
173 | { | |
174 | if (sdi->status != SR_ST_ACTIVE) | |
175 | return SR_ERR_DEV_CLOSED; | |
176 | ||
177 | return SR_OK; | |
178 | } | |
179 | ||
180 | static struct sr_dev_driver conrad_digi_35_cpu_driver_info = { | |
181 | .name = "conrad-digi-35-cpu", | |
182 | .longname = "Conrad DIGI 35 CPU", | |
183 | .api_version = 1, | |
184 | .init = std_init, | |
185 | .cleanup = std_cleanup, | |
186 | .scan = scan, | |
187 | .dev_list = std_dev_list, | |
188 | .dev_clear = NULL, | |
189 | .config_get = NULL, | |
190 | .config_set = config_set, | |
191 | .config_list = config_list, | |
192 | .dev_open = std_serial_dev_open, | |
193 | .dev_close = std_serial_dev_close, | |
194 | .dev_acquisition_start = dev_acquisition_start, | |
195 | .dev_acquisition_stop = dev_acquisition_stop, | |
196 | .context = NULL, | |
197 | }; | |
198 | SR_REGISTER_DEV_DRIVER(conrad_digi_35_cpu_driver_info); |