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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 | ||
0294a409 UH |
27 | #define SERIALCOMM "9600/8n1" |
28 | ||
c6a2843a MH |
29 | static const int32_t hwopts[] = { |
30 | SR_CONF_CONN, | |
31 | SR_CONF_SERIALCOMM, | |
32 | }; | |
33 | ||
34 | static const int32_t hwcaps[] = { | |
35 | SR_CONF_POWER_SUPPLY, | |
36 | SR_CONF_OUTPUT_VOLTAGE, | |
37 | SR_CONF_OUTPUT_CURRENT, | |
0294a409 | 38 | /* There's no SR_CONF_OUTPUT_ENABLED; can't know/set status remotely. */ |
c6a2843a MH |
39 | SR_CONF_OVER_CURRENT_PROTECTION, |
40 | }; | |
41 | ||
823b4e58 MH |
42 | SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info; |
43 | static struct sr_dev_driver *di = &conrad_digi_35_cpu_driver_info; | |
44 | ||
45 | static int init(struct sr_context *sr_ctx) | |
46 | { | |
47 | return std_init(sr_ctx, di, LOG_PREFIX); | |
48 | } | |
49 | ||
50 | static GSList *scan(GSList *options) | |
51 | { | |
c6a2843a | 52 | struct sr_dev_inst *sdi; |
823b4e58 | 53 | struct drv_context *drvc; |
c6a2843a MH |
54 | struct sr_config *src; |
55 | struct sr_probe *probe; | |
56 | struct sr_serial_dev_inst *serial; | |
57 | GSList *l, *devices; | |
58 | const char *conn, *serialcomm; | |
823b4e58 MH |
59 | |
60 | devices = NULL; | |
61 | drvc = di->priv; | |
62 | drvc->instances = NULL; | |
c6a2843a MH |
63 | conn = serialcomm = NULL; |
64 | ||
65 | for (l = options; l; l = l->next) { | |
66 | src = l->data; | |
67 | switch (src->key) { | |
68 | case SR_CONF_CONN: | |
69 | conn = g_variant_get_string(src->data, NULL); | |
70 | break; | |
71 | case SR_CONF_SERIALCOMM: | |
72 | serialcomm = g_variant_get_string(src->data, NULL); | |
73 | break; | |
74 | } | |
75 | } | |
76 | if (!conn) | |
77 | return NULL; | |
78 | if (!serialcomm) | |
79 | serialcomm = SERIALCOMM; | |
80 | ||
0294a409 UH |
81 | /* |
82 | * We cannot scan for this device because it is write-only. | |
c6a2843a | 83 | * So just check that the port parameters are valid and assume that |
0294a409 UH |
84 | * the device is there. |
85 | */ | |
c6a2843a MH |
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 | ||
0294a409 | 96 | sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn); |
c6a2843a MH |
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 | { | |
0294a409 | 126 | return dev_clear(); |
823b4e58 MH |
127 | } |
128 | ||
823b4e58 MH |
129 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, |
130 | const struct sr_probe_group *probe_group) | |
131 | { | |
132 | int ret; | |
c6a2843a | 133 | double dblval; |
823b4e58 | 134 | |
823b4e58 MH |
135 | (void)probe_group; |
136 | ||
137 | if (sdi->status != SR_ST_ACTIVE) | |
138 | return SR_ERR_DEV_CLOSED; | |
139 | ||
140 | ret = SR_OK; | |
141 | switch (key) { | |
c6a2843a MH |
142 | case SR_CONF_OUTPUT_VOLTAGE: |
143 | dblval = g_variant_get_double(data); | |
144 | if ((dblval < 0.0) || (dblval > 35.0)) { | |
145 | sr_err("Voltage out of range (0 - 35.0)!"); | |
146 | return SR_ERR_ARG; | |
147 | } | |
148 | ret = send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5)); | |
149 | break; | |
150 | case SR_CONF_OUTPUT_CURRENT: | |
151 | dblval = g_variant_get_double(data); | |
152 | if ((dblval < 0.01) || (dblval > 2.55)) { | |
153 | sr_err("Current out of range (0 - 2.55)!"); | |
154 | return SR_ERR_ARG; | |
155 | } | |
156 | ret = send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5)); | |
157 | break; | |
158 | /* No SR_CONF_OUTPUT_ENABLED :-( . */ | |
159 | case SR_CONF_OVER_CURRENT_PROTECTION: | |
160 | if (g_variant_get_boolean(data)) | |
161 | ret = send_msg1(sdi, 'V', 900); | |
162 | else /* Constant current mode */ | |
163 | ret = send_msg1(sdi, 'V', 901); | |
164 | break; | |
823b4e58 MH |
165 | default: |
166 | ret = SR_ERR_NA; | |
167 | } | |
168 | ||
169 | return ret; | |
170 | } | |
171 | ||
172 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
173 | const struct sr_probe_group *probe_group) | |
174 | { | |
175 | int ret; | |
176 | ||
177 | (void)sdi; | |
823b4e58 MH |
178 | (void)probe_group; |
179 | ||
180 | ret = SR_OK; | |
181 | switch (key) { | |
c6a2843a MH |
182 | case SR_CONF_SCAN_OPTIONS: |
183 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
184 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
185 | break; | |
186 | case SR_CONF_DEVICE_OPTIONS: | |
187 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
188 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
189 | break; | |
823b4e58 MH |
190 | default: |
191 | return SR_ERR_NA; | |
192 | } | |
193 | ||
194 | return ret; | |
195 | } | |
196 | ||
0294a409 | 197 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
823b4e58 | 198 | { |
823b4e58 MH |
199 | (void)cb_data; |
200 | ||
201 | if (sdi->status != SR_ST_ACTIVE) | |
202 | return SR_ERR_DEV_CLOSED; | |
203 | ||
823b4e58 MH |
204 | return SR_OK; |
205 | } | |
206 | ||
0294a409 | 207 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
823b4e58 MH |
208 | { |
209 | (void)cb_data; | |
210 | ||
211 | if (sdi->status != SR_ST_ACTIVE) | |
212 | return SR_ERR_DEV_CLOSED; | |
213 | ||
823b4e58 MH |
214 | return SR_OK; |
215 | } | |
216 | ||
217 | SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info = { | |
218 | .name = "conrad-digi-35-cpu", | |
219 | .longname = "Conrad DIGI 35 CPU", | |
220 | .api_version = 1, | |
221 | .init = init, | |
222 | .cleanup = cleanup, | |
223 | .scan = scan, | |
224 | .dev_list = dev_list, | |
225 | .dev_clear = dev_clear, | |
c6a2843a | 226 | .config_get = NULL, |
823b4e58 MH |
227 | .config_set = config_set, |
228 | .config_list = config_list, | |
c6a2843a MH |
229 | .dev_open = std_serial_dev_open, |
230 | .dev_close = std_serial_dev_close, | |
0294a409 UH |
231 | .dev_acquisition_start = dev_acquisition_start, |
232 | .dev_acquisition_stop = dev_acquisition_stop, | |
823b4e58 MH |
233 | .priv = NULL, |
234 | }; |