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823b4e58 MH |
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 | ||
c6a2843a MH |
20 | /** @file |
21 | * <em>Conrad DIGI 35 CPU</em> power supply driver | |
22 | * @internal | |
23 | */ | |
24 | ||
823b4e58 MH |
25 | #include "protocol.h" |
26 | ||
c6a2843a MH |
27 | static const int32_t hwopts[] = { |
28 | SR_CONF_CONN, | |
29 | SR_CONF_SERIALCOMM, | |
30 | }; | |
31 | ||
32 | static const int32_t hwcaps[] = { | |
33 | SR_CONF_POWER_SUPPLY, | |
34 | SR_CONF_OUTPUT_VOLTAGE, | |
35 | SR_CONF_OUTPUT_CURRENT, | |
36 | /* There is no SR_CONF_OUTPUT_ENABLED; cannot know or set status remotely. */ | |
37 | SR_CONF_OVER_CURRENT_PROTECTION, | |
38 | }; | |
39 | ||
40 | ||
41 | #define SERIALCOMM "9600/8n1" | |
42 | ||
43 | ||
823b4e58 MH |
44 | SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info; |
45 | static struct sr_dev_driver *di = &conrad_digi_35_cpu_driver_info; | |
46 | ||
47 | static int init(struct sr_context *sr_ctx) | |
48 | { | |
49 | return std_init(sr_ctx, di, LOG_PREFIX); | |
50 | } | |
51 | ||
52 | static GSList *scan(GSList *options) | |
53 | { | |
c6a2843a | 54 | struct sr_dev_inst *sdi; |
823b4e58 | 55 | struct drv_context *drvc; |
c6a2843a MH |
56 | struct sr_config *src; |
57 | struct sr_probe *probe; | |
58 | struct sr_serial_dev_inst *serial; | |
59 | GSList *l, *devices; | |
60 | const char *conn, *serialcomm; | |
823b4e58 MH |
61 | |
62 | devices = NULL; | |
63 | drvc = di->priv; | |
64 | drvc->instances = NULL; | |
c6a2843a MH |
65 | conn = serialcomm = NULL; |
66 | ||
67 | for (l = options; l; l = l->next) { | |
68 | src = l->data; | |
69 | switch (src->key) { | |
70 | case SR_CONF_CONN: | |
71 | conn = g_variant_get_string(src->data, NULL); | |
72 | break; | |
73 | case SR_CONF_SERIALCOMM: | |
74 | serialcomm = g_variant_get_string(src->data, NULL); | |
75 | break; | |
76 | } | |
77 | } | |
78 | if (!conn) | |
79 | return NULL; | |
80 | if (!serialcomm) | |
81 | serialcomm = SERIALCOMM; | |
82 | ||
83 | /* We cannot scan for this device because it is write-only. | |
84 | * So just check that the port parameters are valid and assume that | |
85 | * the device is there. */ | |
86 | ||
87 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
88 | return NULL; | |
89 | ||
90 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
91 | return NULL; | |
823b4e58 | 92 | |
c6a2843a MH |
93 | serial_flush(serial); |
94 | serial_close(serial); | |
95 | ||
96 | sr_spew("Conrad DIGI 35 CPU assumed at %s", conn); | |
97 | ||
98 | if (!(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, "Conrad", "DIGI 35 CPU", ""))) | |
99 | return NULL; | |
100 | ||
101 | sdi->conn = serial; | |
102 | sdi->priv = NULL; | |
103 | sdi->driver = di; | |
104 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "CH1"))) | |
105 | return NULL; | |
106 | sdi->probes = g_slist_append(sdi->probes, probe); | |
107 | ||
108 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
109 | devices = g_slist_append(devices, sdi); | |
823b4e58 MH |
110 | |
111 | return devices; | |
112 | } | |
113 | ||
114 | static GSList *dev_list(void) | |
115 | { | |
116 | return ((struct drv_context *)(di->priv))->instances; | |
117 | } | |
118 | ||
119 | static int dev_clear(void) | |
120 | { | |
121 | return std_dev_clear(di, NULL); | |
122 | } | |
123 | ||
823b4e58 MH |
124 | static int cleanup(void) |
125 | { | |
126 | dev_clear(); | |
127 | ||
823b4e58 MH |
128 | return SR_OK; |
129 | } | |
130 | ||
823b4e58 MH |
131 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, |
132 | const struct sr_probe_group *probe_group) | |
133 | { | |
134 | int ret; | |
c6a2843a | 135 | double dblval; |
823b4e58 | 136 | |
823b4e58 MH |
137 | (void)probe_group; |
138 | ||
139 | if (sdi->status != SR_ST_ACTIVE) | |
140 | return SR_ERR_DEV_CLOSED; | |
141 | ||
142 | ret = SR_OK; | |
143 | switch (key) { | |
c6a2843a MH |
144 | case SR_CONF_OUTPUT_VOLTAGE: |
145 | dblval = g_variant_get_double(data); | |
146 | if ((dblval < 0.0) || (dblval > 35.0)) { | |
147 | sr_err("Voltage out of range (0 - 35.0)!"); | |
148 | return SR_ERR_ARG; | |
149 | } | |
150 | ret = send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5)); | |
151 | break; | |
152 | case SR_CONF_OUTPUT_CURRENT: | |
153 | dblval = g_variant_get_double(data); | |
154 | if ((dblval < 0.01) || (dblval > 2.55)) { | |
155 | sr_err("Current out of range (0 - 2.55)!"); | |
156 | return SR_ERR_ARG; | |
157 | } | |
158 | ret = send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5)); | |
159 | break; | |
160 | /* No SR_CONF_OUTPUT_ENABLED :-( . */ | |
161 | case SR_CONF_OVER_CURRENT_PROTECTION: | |
162 | if (g_variant_get_boolean(data)) | |
163 | ret = send_msg1(sdi, 'V', 900); | |
164 | else /* Constant current mode */ | |
165 | ret = send_msg1(sdi, 'V', 901); | |
166 | break; | |
823b4e58 MH |
167 | default: |
168 | ret = SR_ERR_NA; | |
169 | } | |
170 | ||
171 | return ret; | |
172 | } | |
173 | ||
174 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
175 | const struct sr_probe_group *probe_group) | |
176 | { | |
177 | int ret; | |
178 | ||
179 | (void)sdi; | |
823b4e58 MH |
180 | (void)probe_group; |
181 | ||
182 | ret = SR_OK; | |
183 | switch (key) { | |
c6a2843a MH |
184 | case SR_CONF_SCAN_OPTIONS: |
185 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
186 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
187 | break; | |
188 | case SR_CONF_DEVICE_OPTIONS: | |
189 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
190 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
191 | break; | |
823b4e58 MH |
192 | default: |
193 | return SR_ERR_NA; | |
194 | } | |
195 | ||
196 | return ret; | |
197 | } | |
198 | ||
c6a2843a | 199 | static int dev_acquisition_start_dummy(const struct sr_dev_inst *sdi, |
823b4e58 MH |
200 | void *cb_data) |
201 | { | |
823b4e58 MH |
202 | (void)cb_data; |
203 | ||
204 | if (sdi->status != SR_ST_ACTIVE) | |
205 | return SR_ERR_DEV_CLOSED; | |
206 | ||
823b4e58 MH |
207 | return SR_OK; |
208 | } | |
209 | ||
c6a2843a | 210 | static int dev_acquisition_stop_dummy(struct sr_dev_inst *sdi, void *cb_data) |
823b4e58 MH |
211 | { |
212 | (void)cb_data; | |
213 | ||
214 | if (sdi->status != SR_ST_ACTIVE) | |
215 | return SR_ERR_DEV_CLOSED; | |
216 | ||
823b4e58 MH |
217 | return SR_OK; |
218 | } | |
219 | ||
220 | SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info = { | |
221 | .name = "conrad-digi-35-cpu", | |
222 | .longname = "Conrad DIGI 35 CPU", | |
223 | .api_version = 1, | |
224 | .init = init, | |
225 | .cleanup = cleanup, | |
226 | .scan = scan, | |
227 | .dev_list = dev_list, | |
228 | .dev_clear = dev_clear, | |
c6a2843a | 229 | .config_get = NULL, |
823b4e58 MH |
230 | .config_set = config_set, |
231 | .config_list = config_list, | |
c6a2843a MH |
232 | .dev_open = std_serial_dev_open, |
233 | .dev_close = std_serial_dev_close, | |
234 | .dev_acquisition_start = dev_acquisition_start_dummy, | |
235 | .dev_acquisition_stop = dev_acquisition_stop_dummy, | |
823b4e58 MH |
236 | .priv = NULL, |
237 | }; |