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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 | /** @file | |
21 | * <em>Conrad DIGI 35 CPU</em> power supply driver | |
22 | * @internal | |
23 | */ | |
24 | ||
25 | #include "protocol.h" | |
26 | ||
27 | #define SERIALCOMM "9600/8n1" | |
28 | ||
29 | static const uint32_t scanopts[] = { | |
30 | SR_CONF_CONN, | |
31 | SR_CONF_SERIALCOMM, | |
32 | }; | |
33 | ||
34 | static const uint32_t devopts[] = { | |
35 | SR_CONF_POWER_SUPPLY, | |
36 | SR_CONF_OUTPUT_VOLTAGE | SR_CONF_SET, | |
37 | SR_CONF_OUTPUT_CURRENT | SR_CONF_SET, | |
38 | SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_SET, | |
39 | }; | |
40 | ||
41 | SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info; | |
42 | ||
43 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
44 | { | |
45 | return std_init(sr_ctx, di, LOG_PREFIX); | |
46 | } | |
47 | ||
48 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
49 | { | |
50 | struct sr_dev_inst *sdi; | |
51 | struct drv_context *drvc; | |
52 | struct sr_config *src; | |
53 | struct sr_serial_dev_inst *serial; | |
54 | GSList *l, *devices; | |
55 | const char *conn, *serialcomm; | |
56 | ||
57 | devices = NULL; | |
58 | drvc = di->priv; | |
59 | drvc->instances = NULL; | |
60 | conn = serialcomm = NULL; | |
61 | ||
62 | for (l = options; l; l = l->next) { | |
63 | src = l->data; | |
64 | switch (src->key) { | |
65 | case SR_CONF_CONN: | |
66 | conn = g_variant_get_string(src->data, NULL); | |
67 | break; | |
68 | case SR_CONF_SERIALCOMM: | |
69 | serialcomm = g_variant_get_string(src->data, NULL); | |
70 | break; | |
71 | } | |
72 | } | |
73 | if (!conn) | |
74 | return NULL; | |
75 | if (!serialcomm) | |
76 | serialcomm = SERIALCOMM; | |
77 | ||
78 | /* | |
79 | * We cannot scan for this device because it is write-only. | |
80 | * So just check that the port parameters are valid and assume that | |
81 | * the device is there. | |
82 | */ | |
83 | ||
84 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
85 | ||
86 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
87 | return NULL; | |
88 | ||
89 | serial_flush(serial); | |
90 | serial_close(serial); | |
91 | ||
92 | sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn); | |
93 | ||
94 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
95 | sdi->status = SR_ST_ACTIVE; | |
96 | sdi->vendor = g_strdup("Conrad"); | |
97 | sdi->model = g_strdup("DIGI 35 CPU"); | |
98 | sdi->conn = serial; | |
99 | sdi->priv = NULL; | |
100 | sdi->driver = di; | |
101 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1"); | |
102 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
103 | devices = g_slist_append(devices, sdi); | |
104 | ||
105 | return devices; | |
106 | } | |
107 | ||
108 | static GSList *dev_list(const struct sr_dev_driver *di) | |
109 | { | |
110 | return ((struct drv_context *)(di->priv))->instances; | |
111 | } | |
112 | ||
113 | static int cleanup(const struct sr_dev_driver *di) | |
114 | { | |
115 | return std_dev_clear(di, NULL); | |
116 | } | |
117 | ||
118 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
119 | const struct sr_channel_group *cg) | |
120 | { | |
121 | int ret; | |
122 | double dblval; | |
123 | ||
124 | (void)cg; | |
125 | ||
126 | if (sdi->status != SR_ST_ACTIVE) | |
127 | return SR_ERR_DEV_CLOSED; | |
128 | ||
129 | ret = SR_OK; | |
130 | switch (key) { | |
131 | case SR_CONF_OUTPUT_VOLTAGE: | |
132 | dblval = g_variant_get_double(data); | |
133 | if ((dblval < 0.0) || (dblval > 35.0)) { | |
134 | sr_err("Voltage out of range (0 - 35.0)!"); | |
135 | return SR_ERR_ARG; | |
136 | } | |
137 | ret = send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5)); | |
138 | break; | |
139 | case SR_CONF_OUTPUT_CURRENT: | |
140 | dblval = g_variant_get_double(data); | |
141 | if ((dblval < 0.01) || (dblval > 2.55)) { | |
142 | sr_err("Current out of range (0 - 2.55)!"); | |
143 | return SR_ERR_ARG; | |
144 | } | |
145 | ret = send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5)); | |
146 | break; | |
147 | case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED: | |
148 | if (g_variant_get_boolean(data)) | |
149 | ret = send_msg1(sdi, 'V', 900); | |
150 | else /* Constant current mode */ | |
151 | ret = send_msg1(sdi, 'V', 901); | |
152 | break; | |
153 | default: | |
154 | ret = SR_ERR_NA; | |
155 | } | |
156 | ||
157 | return ret; | |
158 | } | |
159 | ||
160 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
161 | const struct sr_channel_group *cg) | |
162 | { | |
163 | int ret; | |
164 | ||
165 | (void)sdi; | |
166 | (void)cg; | |
167 | ||
168 | ret = SR_OK; | |
169 | switch (key) { | |
170 | case SR_CONF_SCAN_OPTIONS: | |
171 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
172 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
173 | break; | |
174 | case SR_CONF_DEVICE_OPTIONS: | |
175 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
176 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
177 | break; | |
178 | default: | |
179 | return SR_ERR_NA; | |
180 | } | |
181 | ||
182 | return ret; | |
183 | } | |
184 | ||
185 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
186 | { | |
187 | (void)cb_data; | |
188 | ||
189 | if (sdi->status != SR_ST_ACTIVE) | |
190 | return SR_ERR_DEV_CLOSED; | |
191 | ||
192 | return SR_OK; | |
193 | } | |
194 | ||
195 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
196 | { | |
197 | (void)cb_data; | |
198 | ||
199 | if (sdi->status != SR_ST_ACTIVE) | |
200 | return SR_ERR_DEV_CLOSED; | |
201 | ||
202 | return SR_OK; | |
203 | } | |
204 | ||
205 | SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info = { | |
206 | .name = "conrad-digi-35-cpu", | |
207 | .longname = "Conrad DIGI 35 CPU", | |
208 | .api_version = 1, | |
209 | .init = init, | |
210 | .cleanup = cleanup, | |
211 | .scan = scan, | |
212 | .dev_list = dev_list, | |
213 | .dev_clear = NULL, | |
214 | .config_get = NULL, | |
215 | .config_set = config_set, | |
216 | .config_list = config_list, | |
217 | .dev_open = std_serial_dev_open, | |
218 | .dev_close = std_serial_dev_close, | |
219 | .dev_acquisition_start = dev_acquisition_start, | |
220 | .dev_acquisition_stop = dev_acquisition_stop, | |
221 | .priv = NULL, | |
222 | }; |