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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2015 Martin Lederhilger <martin.lederhilger@gmx.at> | |
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 | #include <string.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | static const uint32_t scanopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const uint32_t devopts[] = { | |
29 | SR_CONF_OSCILLOSCOPE, | |
30 | SR_CONF_LIMIT_FRAMES | SR_CONF_SET, | |
31 | SR_CONF_SAMPLERATE | SR_CONF_GET, | |
32 | }; | |
33 | ||
34 | static struct sr_dev_driver gwinstek_gds_800_driver_info; | |
35 | ||
36 | static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi) | |
37 | { | |
38 | struct dev_context *devc; | |
39 | struct sr_dev_inst *sdi; | |
40 | struct sr_scpi_hw_info *hw_info; | |
41 | struct sr_channel_group *cg; | |
42 | ||
43 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
44 | sr_info("Couldn't get IDN response."); | |
45 | return NULL; | |
46 | } | |
47 | ||
48 | if (strcmp(hw_info->manufacturer, "GW") != 0 || | |
49 | strncmp(hw_info->model, "GDS-8", 5) != 0) { | |
50 | sr_scpi_hw_info_free(hw_info); | |
51 | return NULL; | |
52 | } | |
53 | ||
54 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
55 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
56 | sdi->model = g_strdup(hw_info->model); | |
57 | sdi->version = g_strdup(hw_info->firmware_version); | |
58 | sdi->conn = scpi; | |
59 | sdi->driver = &gwinstek_gds_800_driver_info; | |
60 | sdi->inst_type = SR_INST_SCPI; | |
61 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
62 | sdi->channels = NULL; | |
63 | sdi->channel_groups = NULL; | |
64 | ||
65 | sr_scpi_hw_info_free(hw_info); | |
66 | ||
67 | devc = g_malloc0(sizeof(struct dev_context)); | |
68 | devc->frame_limit = 1; | |
69 | devc->sample_rate = 0.0; | |
70 | devc->df_started = FALSE; | |
71 | sdi->priv = devc; | |
72 | ||
73 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1"); | |
74 | sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "CH2"); | |
75 | ||
76 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
77 | cg->name = g_strdup(""); | |
78 | cg->channels = g_slist_append(cg->channels, g_slist_nth_data(sdi->channels, 0)); | |
79 | cg->channels = g_slist_append(cg->channels, g_slist_nth_data(sdi->channels, 1)); | |
80 | cg->priv = NULL; | |
81 | sdi->channel_groups = g_slist_append(NULL, cg); | |
82 | ||
83 | return sdi; | |
84 | } | |
85 | ||
86 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
87 | { | |
88 | return sr_scpi_scan(di->context, options, probe_device); | |
89 | } | |
90 | ||
91 | static int dev_open(struct sr_dev_inst *sdi) | |
92 | { | |
93 | int ret; | |
94 | struct sr_scpi_dev_inst *scpi = sdi->conn; | |
95 | ||
96 | if ((ret = sr_scpi_open(scpi)) < 0) { | |
97 | sr_err("Failed to open SCPI device: %s.", sr_strerror(ret)); | |
98 | return SR_ERR; | |
99 | } | |
100 | ||
101 | return SR_OK; | |
102 | } | |
103 | ||
104 | static int dev_close(struct sr_dev_inst *sdi) | |
105 | { | |
106 | struct sr_scpi_dev_inst *scpi; | |
107 | ||
108 | scpi = sdi->conn; | |
109 | ||
110 | if (!scpi) | |
111 | return SR_ERR_BUG; | |
112 | ||
113 | return sr_scpi_close(scpi); | |
114 | } | |
115 | ||
116 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
117 | const struct sr_channel_group *cg) | |
118 | { | |
119 | struct dev_context *devc; | |
120 | ||
121 | (void)cg; | |
122 | ||
123 | if (!sdi) | |
124 | return SR_ERR_ARG; | |
125 | ||
126 | devc = sdi->priv; | |
127 | ||
128 | switch (key) { | |
129 | case SR_CONF_SAMPLERATE: | |
130 | *data = g_variant_new_uint64(devc->sample_rate); | |
131 | break; | |
132 | default: | |
133 | return SR_ERR_NA; | |
134 | } | |
135 | ||
136 | return SR_OK; | |
137 | } | |
138 | ||
139 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
140 | const struct sr_channel_group *cg) | |
141 | { | |
142 | struct dev_context *devc; | |
143 | ||
144 | (void)cg; | |
145 | ||
146 | if (!sdi) | |
147 | return SR_ERR_ARG; | |
148 | ||
149 | devc = sdi->priv; | |
150 | ||
151 | switch (key) { | |
152 | case SR_CONF_LIMIT_FRAMES: | |
153 | devc->frame_limit = g_variant_get_uint64(data); | |
154 | break; | |
155 | default: | |
156 | return SR_ERR_NA; | |
157 | } | |
158 | ||
159 | return SR_OK; | |
160 | } | |
161 | ||
162 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
163 | const struct sr_channel_group *cg) | |
164 | { | |
165 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, devopts); | |
166 | } | |
167 | ||
168 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
169 | { | |
170 | struct sr_scpi_dev_inst *scpi; | |
171 | struct dev_context *devc; | |
172 | ||
173 | scpi = sdi->conn; | |
174 | devc = sdi->priv; | |
175 | ||
176 | devc->state = START_ACQUISITION; | |
177 | devc->cur_acq_frame = 0; | |
178 | ||
179 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, | |
180 | gwinstek_gds_800_receive_data, (void *)sdi); | |
181 | ||
182 | return SR_OK; | |
183 | } | |
184 | ||
185 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
186 | { | |
187 | struct sr_scpi_dev_inst *scpi; | |
188 | struct dev_context *devc; | |
189 | struct sr_datafeed_packet packet; | |
190 | ||
191 | scpi = sdi->conn; | |
192 | devc = sdi->priv; | |
193 | ||
194 | if (devc->df_started) { | |
195 | packet.type = SR_DF_FRAME_END; | |
196 | sr_session_send(sdi, &packet); | |
197 | ||
198 | std_session_send_df_end(sdi); | |
199 | ||
200 | devc->df_started = FALSE; | |
201 | } | |
202 | ||
203 | sr_scpi_source_remove(sdi->session, scpi); | |
204 | ||
205 | return SR_OK; | |
206 | } | |
207 | ||
208 | static struct sr_dev_driver gwinstek_gds_800_driver_info = { | |
209 | .name = "gwinstek-gds-800", | |
210 | .longname = "GW Instek GDS-800 series", | |
211 | .api_version = 1, | |
212 | .init = std_init, | |
213 | .cleanup = std_cleanup, | |
214 | .scan = scan, | |
215 | .dev_list = std_dev_list, | |
216 | .dev_clear = std_dev_clear, | |
217 | .config_get = config_get, | |
218 | .config_set = config_set, | |
219 | .config_list = config_list, | |
220 | .dev_open = dev_open, | |
221 | .dev_close = dev_close, | |
222 | .dev_acquisition_start = dev_acquisition_start, | |
223 | .dev_acquisition_stop = dev_acquisition_stop, | |
224 | .context = NULL, | |
225 | }; | |
226 | SR_REGISTER_DEV_DRIVER(gwinstek_gds_800_driver_info); |