2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
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.
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.
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/>.
21 * <em>Conrad DIGI 35 CPU</em> power supply driver
27 #define SERIALCOMM "9600/8n1"
29 static const int32_t hwopts[] = {
34 static const int32_t hwcaps[] = {
36 SR_CONF_OUTPUT_VOLTAGE,
37 SR_CONF_OUTPUT_CURRENT,
38 /* There's no SR_CONF_OUTPUT_ENABLED; can't know/set status remotely. */
39 SR_CONF_OVER_CURRENT_PROTECTION_ENABLED,
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;
45 static int init(struct sr_context *sr_ctx)
47 return std_init(sr_ctx, di, LOG_PREFIX);
50 static GSList *scan(GSList *options)
52 struct sr_dev_inst *sdi;
53 struct drv_context *drvc;
54 struct sr_config *src;
55 struct sr_channel *ch;
56 struct sr_serial_dev_inst *serial;
58 const char *conn, *serialcomm;
62 drvc->instances = NULL;
63 conn = serialcomm = NULL;
65 for (l = options; l; l = l->next) {
69 conn = g_variant_get_string(src->data, NULL);
71 case SR_CONF_SERIALCOMM:
72 serialcomm = g_variant_get_string(src->data, NULL);
79 serialcomm = SERIALCOMM;
82 * We cannot scan for this device because it is write-only.
83 * So just check that the port parameters are valid and assume that
84 * the device is there.
87 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
90 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
96 sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn);
98 if (!(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, "Conrad", "DIGI 35 CPU", NULL)))
104 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "CH1")))
106 sdi->channels = g_slist_append(sdi->channels, ch);
108 drvc->instances = g_slist_append(drvc->instances, sdi);
109 devices = g_slist_append(devices, sdi);
114 static GSList *dev_list(void)
116 return ((struct drv_context *)(di->priv))->instances;
119 static int cleanup(void)
121 return std_dev_clear(di, NULL);
124 static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
125 const struct sr_channel_group *cg)
132 if (sdi->status != SR_ST_ACTIVE)
133 return SR_ERR_DEV_CLOSED;
137 case SR_CONF_OUTPUT_VOLTAGE:
138 dblval = g_variant_get_double(data);
139 if ((dblval < 0.0) || (dblval > 35.0)) {
140 sr_err("Voltage out of range (0 - 35.0)!");
143 ret = send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5));
145 case SR_CONF_OUTPUT_CURRENT:
146 dblval = g_variant_get_double(data);
147 if ((dblval < 0.01) || (dblval > 2.55)) {
148 sr_err("Current out of range (0 - 2.55)!");
151 ret = send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5));
153 /* No SR_CONF_OUTPUT_ENABLED :-( . */
154 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
155 if (g_variant_get_boolean(data))
156 ret = send_msg1(sdi, 'V', 900);
157 else /* Constant current mode */
158 ret = send_msg1(sdi, 'V', 901);
167 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
168 const struct sr_channel_group *cg)
177 case SR_CONF_SCAN_OPTIONS:
178 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
179 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
181 case SR_CONF_DEVICE_OPTIONS:
182 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
183 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
192 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
196 if (sdi->status != SR_ST_ACTIVE)
197 return SR_ERR_DEV_CLOSED;
202 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
206 if (sdi->status != SR_ST_ACTIVE)
207 return SR_ERR_DEV_CLOSED;
212 SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info = {
213 .name = "conrad-digi-35-cpu",
214 .longname = "Conrad DIGI 35 CPU",
219 .dev_list = dev_list,
222 .config_set = config_set,
223 .config_list = config_list,
224 .dev_open = std_serial_dev_open,
225 .dev_close = std_serial_dev_close,
226 .dev_acquisition_start = dev_acquisition_start,
227 .dev_acquisition_stop = dev_acquisition_stop,