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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org> | |
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 <config.h> | |
21 | #include <string.h> | |
22 | #include "protocol.h" | |
23 | ||
24 | static const uint32_t scanopts[] = { | |
25 | SR_CONF_CONN, | |
26 | SR_CONF_SERIALCOMM, | |
27 | }; | |
28 | ||
29 | static const uint32_t drvopts[] = { | |
30 | SR_CONF_THERMOMETER, | |
31 | }; | |
32 | ||
33 | static const uint32_t devopts[] = { | |
34 | SR_CONF_CONTINUOUS, | |
35 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
36 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
37 | SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
38 | }; | |
39 | ||
40 | static const char *data_sources[] = { | |
41 | "Live", | |
42 | "Memory", | |
43 | }; | |
44 | ||
45 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
46 | { | |
47 | struct drv_context *drvc; | |
48 | struct dev_context *devc; | |
49 | struct sr_serial_dev_inst *serial; | |
50 | struct sr_dev_inst *sdi; | |
51 | struct sr_config *src; | |
52 | GSList *devices, *l; | |
53 | const char *conn, *serialcomm; | |
54 | uint8_t buf[50]; | |
55 | size_t len; | |
56 | ||
57 | len = sizeof(buf); | |
58 | devices = NULL; | |
59 | conn = serialcomm = NULL; | |
60 | for (l = options; l; l = l->next) { | |
61 | src = l->data; | |
62 | switch (src->key) { | |
63 | case SR_CONF_CONN: | |
64 | conn = g_variant_get_string(src->data, NULL); | |
65 | break; | |
66 | case SR_CONF_SERIALCOMM: | |
67 | serialcomm = g_variant_get_string(src->data, NULL); | |
68 | break; | |
69 | } | |
70 | } | |
71 | if (!conn) | |
72 | return NULL; | |
73 | if (!serialcomm) | |
74 | serialcomm = "9600/8n1"; | |
75 | ||
76 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
77 | ||
78 | if (serial_open(serial, SERIAL_RDONLY) != SR_OK) | |
79 | return NULL; | |
80 | ||
81 | sr_info("Probing serial port %s.", conn); | |
82 | ||
83 | drvc = di->context; | |
84 | serial_flush(serial); | |
85 | ||
86 | /* Let's get a bit of data and see if we can find a packet. */ | |
87 | if (serial_stream_detect(serial, buf, &len, 25, | |
88 | appa_55ii_packet_valid, 500, 9600) != SR_OK) | |
89 | goto scan_cleanup; | |
90 | ||
91 | sr_info("Found device on port %s.", conn); | |
92 | ||
93 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
94 | sdi->status = SR_ST_INACTIVE; | |
95 | sdi->vendor = g_strdup("APPA"); | |
96 | sdi->model = g_strdup("55II"); | |
97 | devc = g_malloc0(sizeof(struct dev_context)); | |
98 | devc->data_source = DEFAULT_DATA_SOURCE; | |
99 | sdi->inst_type = SR_INST_SERIAL; | |
100 | sdi->conn = serial; | |
101 | sdi->priv = devc; | |
102 | sdi->driver = di; | |
103 | ||
104 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T1"); | |
105 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T2"); | |
106 | ||
107 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
108 | devices = g_slist_append(devices, sdi); | |
109 | ||
110 | scan_cleanup: | |
111 | serial_close(serial); | |
112 | ||
113 | return devices; | |
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 = sdi->priv; | |
120 | ||
121 | (void)cg; | |
122 | ||
123 | switch (key) { | |
124 | case SR_CONF_LIMIT_SAMPLES: | |
125 | case SR_CONF_LIMIT_MSEC: | |
126 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
127 | case SR_CONF_DATA_SOURCE: | |
128 | *data = g_variant_new_string(data_sources[devc->data_source]); | |
129 | break; | |
130 | default: | |
131 | return SR_ERR_NA; | |
132 | } | |
133 | ||
134 | return SR_OK; | |
135 | } | |
136 | ||
137 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
138 | const struct sr_channel_group *cg) | |
139 | { | |
140 | struct dev_context *devc; | |
141 | const char *tmp_str; | |
142 | unsigned int i; | |
143 | ||
144 | (void)cg; | |
145 | ||
146 | if (sdi->status != SR_ST_ACTIVE) | |
147 | return SR_ERR_DEV_CLOSED; | |
148 | ||
149 | devc = sdi->priv; | |
150 | ||
151 | switch (key) { | |
152 | case SR_CONF_LIMIT_SAMPLES: | |
153 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
154 | case SR_CONF_DATA_SOURCE: { | |
155 | tmp_str = g_variant_get_string(data, NULL); | |
156 | for (i = 0; i < ARRAY_SIZE(data_sources); i++) | |
157 | if (!strcmp(tmp_str, data_sources[i])) { | |
158 | devc->data_source = i; | |
159 | break; | |
160 | } | |
161 | if (i == ARRAY_SIZE(data_sources)) | |
162 | return SR_ERR; | |
163 | break; | |
164 | } | |
165 | default: | |
166 | return SR_ERR_NA; | |
167 | } | |
168 | ||
169 | return SR_OK; | |
170 | } | |
171 | ||
172 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
173 | const struct sr_channel_group *cg) | |
174 | { | |
175 | (void)cg; | |
176 | ||
177 | switch (key) { | |
178 | case SR_CONF_SCAN_OPTIONS: | |
179 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
180 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
181 | break; | |
182 | case SR_CONF_DEVICE_OPTIONS: | |
183 | if (!sdi) | |
184 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
185 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
186 | else | |
187 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
188 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
189 | break; | |
190 | case SR_CONF_DATA_SOURCE: | |
191 | *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources)); | |
192 | break; | |
193 | default: | |
194 | return SR_ERR_NA; | |
195 | } | |
196 | ||
197 | return SR_OK; | |
198 | } | |
199 | ||
200 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
201 | { | |
202 | struct sr_serial_dev_inst *serial; | |
203 | struct dev_context *devc; | |
204 | ||
205 | serial = sdi->conn; | |
206 | if (sdi->status != SR_ST_ACTIVE) | |
207 | return SR_ERR_DEV_CLOSED; | |
208 | ||
209 | devc = sdi->priv; | |
210 | ||
211 | sr_sw_limits_acquisition_start(&devc->limits); | |
212 | ||
213 | std_session_send_df_header(sdi, LOG_PREFIX); | |
214 | ||
215 | /* Poll every 50ms, or whenever some data comes in. */ | |
216 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
217 | appa_55ii_receive_data, (void *)sdi); | |
218 | ||
219 | return SR_OK; | |
220 | } | |
221 | ||
222 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
223 | { | |
224 | return std_serial_dev_acquisition_stop(sdi, | |
225 | std_serial_dev_close, sdi->conn, LOG_PREFIX); | |
226 | } | |
227 | ||
228 | static struct sr_dev_driver appa_55ii_driver_info = { | |
229 | .name = "appa-55ii", | |
230 | .longname = "APPA 55II", | |
231 | .api_version = 1, | |
232 | .init = std_init, | |
233 | .cleanup = std_cleanup, | |
234 | .scan = scan, | |
235 | .dev_list = std_dev_list, | |
236 | .dev_clear = NULL, | |
237 | .config_get = config_get, | |
238 | .config_set = config_set, | |
239 | .config_list = config_list, | |
240 | .dev_open = std_serial_dev_open, | |
241 | .dev_close = std_serial_dev_close, | |
242 | .dev_acquisition_start = dev_acquisition_start, | |
243 | .dev_acquisition_stop = dev_acquisition_stop, | |
244 | .context = NULL, | |
245 | }; | |
246 | SR_REGISTER_DEV_DRIVER(appa_55ii_driver_info); |