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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
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 <glib.h> | |
21 | #include "libsigrok.h" | |
22 | #include "libsigrok-internal.h" | |
23 | #include "protocol.h" | |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <errno.h> | |
28 | #include <string.h> | |
29 | ||
30 | /* The Colead SL-5868P uses this. */ | |
31 | #define SERIALCOMM "2400/8n1" | |
32 | ||
33 | static const int32_t hwopts[] = { | |
34 | SR_CONF_CONN, | |
35 | SR_CONF_SERIALCOMM, | |
36 | }; | |
37 | ||
38 | static const int32_t hwcaps[] = { | |
39 | SR_CONF_SOUNDLEVELMETER, | |
40 | SR_CONF_LIMIT_SAMPLES, | |
41 | SR_CONF_LIMIT_MSEC, | |
42 | SR_CONF_CONTINUOUS, | |
43 | }; | |
44 | ||
45 | SR_PRIV struct sr_dev_driver colead_slm_driver_info; | |
46 | static struct sr_dev_driver *di = &colead_slm_driver_info; | |
47 | ||
48 | static int dev_clear(void) | |
49 | { | |
50 | return std_dev_clear(di, NULL); | |
51 | } | |
52 | ||
53 | static int init(struct sr_context *sr_ctx) | |
54 | { | |
55 | return std_init(sr_ctx, di, LOG_PREFIX); | |
56 | } | |
57 | ||
58 | static GSList *scan(GSList *options) | |
59 | { | |
60 | struct drv_context *drvc; | |
61 | struct dev_context *devc; | |
62 | struct sr_dev_inst *sdi; | |
63 | struct sr_config *src; | |
64 | struct sr_probe *probe; | |
65 | GSList *devices, *l; | |
66 | const char *conn, *serialcomm; | |
67 | ||
68 | drvc = di->priv; | |
69 | drvc->instances = NULL; | |
70 | ||
71 | devices = NULL; | |
72 | ||
73 | conn = serialcomm = NULL; | |
74 | for (l = options; l; l = l->next) { | |
75 | src = l->data; | |
76 | switch (src->key) { | |
77 | case SR_CONF_CONN: | |
78 | conn = g_variant_get_string(src->data, NULL); | |
79 | break; | |
80 | case SR_CONF_SERIALCOMM: | |
81 | serialcomm = g_variant_get_string(src->data, NULL); | |
82 | break; | |
83 | } | |
84 | } | |
85 | if (!conn) | |
86 | return NULL; | |
87 | if (!serialcomm) | |
88 | serialcomm = SERIALCOMM; | |
89 | ||
90 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead", | |
91 | "SL-5868P", NULL))) | |
92 | return NULL; | |
93 | ||
94 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
95 | sr_dbg("Device context malloc failed."); | |
96 | return NULL; | |
97 | } | |
98 | ||
99 | if (!(sdi->conn = sr_serial_dev_inst_new(conn, serialcomm))) | |
100 | return NULL; | |
101 | ||
102 | sdi->inst_type = SR_INST_SERIAL; | |
103 | sdi->priv = devc; | |
104 | sdi->driver = di; | |
105 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) | |
106 | return NULL; | |
107 | sdi->probes = g_slist_append(sdi->probes, probe); | |
108 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
109 | devices = g_slist_append(devices, sdi); | |
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_open(struct sr_dev_inst *sdi) | |
120 | { | |
121 | struct sr_serial_dev_inst *serial; | |
122 | ||
123 | serial = sdi->conn; | |
124 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
125 | return SR_ERR; | |
126 | ||
127 | sdi->status = SR_ST_ACTIVE; | |
128 | ||
129 | return SR_OK; | |
130 | } | |
131 | ||
132 | static int dev_close(struct sr_dev_inst *sdi) | |
133 | { | |
134 | struct sr_serial_dev_inst *serial; | |
135 | ||
136 | serial = sdi->conn; | |
137 | if (serial && serial->fd != -1) { | |
138 | serial_close(serial); | |
139 | sdi->status = SR_ST_INACTIVE; | |
140 | } | |
141 | ||
142 | return SR_OK; | |
143 | } | |
144 | ||
145 | static int cleanup(void) | |
146 | { | |
147 | return dev_clear(); | |
148 | } | |
149 | ||
150 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) | |
151 | { | |
152 | struct dev_context *devc; | |
153 | ||
154 | if (sdi->status != SR_ST_ACTIVE) | |
155 | return SR_ERR_DEV_CLOSED; | |
156 | ||
157 | if (!(devc = sdi->priv)) { | |
158 | sr_err("sdi->priv was NULL."); | |
159 | return SR_ERR_BUG; | |
160 | } | |
161 | ||
162 | switch (id) { | |
163 | case SR_CONF_LIMIT_MSEC: | |
164 | /* TODO: not yet implemented */ | |
165 | if (g_variant_get_uint64(data) == 0) { | |
166 | sr_err("LIMIT_MSEC can't be 0."); | |
167 | return SR_ERR; | |
168 | } | |
169 | devc->limit_msec = g_variant_get_uint64(data);; | |
170 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
171 | devc->limit_msec); | |
172 | break; | |
173 | case SR_CONF_LIMIT_SAMPLES: | |
174 | devc->limit_samples = g_variant_get_uint64(data); | |
175 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
176 | devc->limit_samples); | |
177 | break; | |
178 | default: | |
179 | return SR_ERR_NA; | |
180 | } | |
181 | ||
182 | return SR_OK; | |
183 | } | |
184 | ||
185 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
186 | { | |
187 | ||
188 | (void)sdi; | |
189 | ||
190 | switch (key) { | |
191 | case SR_CONF_SCAN_OPTIONS: | |
192 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
193 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
194 | break; | |
195 | case SR_CONF_DEVICE_OPTIONS: | |
196 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
197 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
198 | break; | |
199 | default: | |
200 | return SR_ERR_NA; | |
201 | } | |
202 | ||
203 | return SR_OK; | |
204 | } | |
205 | ||
206 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
207 | { | |
208 | struct dev_context *devc; | |
209 | struct sr_serial_dev_inst *serial; | |
210 | ||
211 | if (sdi->status != SR_ST_ACTIVE) | |
212 | return SR_ERR_DEV_CLOSED; | |
213 | ||
214 | if (!(devc = sdi->priv)) { | |
215 | sr_err("sdi->priv was NULL."); | |
216 | return SR_ERR_BUG; | |
217 | } | |
218 | ||
219 | devc->cb_data = cb_data; | |
220 | ||
221 | /* Send header packet to the session bus. */ | |
222 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
223 | ||
224 | /* Poll every 150ms, or whenever some data comes in. */ | |
225 | serial = sdi->conn; | |
226 | sr_source_add(serial->fd, G_IO_IN, 150, colead_slm_receive_data, | |
227 | (void *)sdi); | |
228 | ||
229 | return SR_OK; | |
230 | } | |
231 | ||
232 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
233 | { | |
234 | return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close, | |
235 | sdi->conn, LOG_PREFIX); | |
236 | } | |
237 | ||
238 | SR_PRIV struct sr_dev_driver colead_slm_driver_info = { | |
239 | .name = "colead-slm", | |
240 | .longname = "Colead SLM", | |
241 | .api_version = 1, | |
242 | .init = init, | |
243 | .cleanup = cleanup, | |
244 | .scan = scan, | |
245 | .dev_list = dev_list, | |
246 | .dev_clear = dev_clear, | |
247 | .config_get = NULL, | |
248 | .config_set = config_set, | |
249 | .config_list = config_list, | |
250 | .dev_open = dev_open, | |
251 | .dev_close = dev_close, | |
252 | .dev_acquisition_start = dev_acquisition_start, | |
253 | .dev_acquisition_stop = dev_acquisition_stop, | |
254 | .priv = NULL, | |
255 | }; |