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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 init(struct sr_context *sr_ctx) | |
49 | { | |
50 | return std_init(sr_ctx, di, LOG_PREFIX); | |
51 | } | |
52 | ||
53 | static GSList *scan(GSList *options) | |
54 | { | |
55 | struct drv_context *drvc; | |
56 | struct dev_context *devc; | |
57 | struct sr_dev_inst *sdi; | |
58 | struct sr_config *src; | |
59 | struct sr_channel *ch; | |
60 | GSList *devices, *l; | |
61 | const char *conn, *serialcomm; | |
62 | ||
63 | drvc = di->priv; | |
64 | drvc->instances = NULL; | |
65 | ||
66 | devices = NULL; | |
67 | ||
68 | conn = serialcomm = NULL; | |
69 | for (l = options; l; l = l->next) { | |
70 | src = l->data; | |
71 | switch (src->key) { | |
72 | case SR_CONF_CONN: | |
73 | conn = g_variant_get_string(src->data, NULL); | |
74 | break; | |
75 | case SR_CONF_SERIALCOMM: | |
76 | serialcomm = g_variant_get_string(src->data, NULL); | |
77 | break; | |
78 | } | |
79 | } | |
80 | if (!conn) | |
81 | return NULL; | |
82 | if (!serialcomm) | |
83 | serialcomm = SERIALCOMM; | |
84 | ||
85 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead", | |
86 | "SL-5868P", NULL))) | |
87 | return NULL; | |
88 | ||
89 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
90 | sr_dbg("Device context malloc failed."); | |
91 | return NULL; | |
92 | } | |
93 | ||
94 | if (!(sdi->conn = sr_serial_dev_inst_new(conn, serialcomm))) | |
95 | return NULL; | |
96 | ||
97 | sdi->inst_type = SR_INST_SERIAL; | |
98 | sdi->priv = devc; | |
99 | sdi->driver = di; | |
100 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1"))) | |
101 | return NULL; | |
102 | sdi->channels = g_slist_append(sdi->channels, ch); | |
103 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
104 | devices = g_slist_append(devices, sdi); | |
105 | ||
106 | return devices; | |
107 | } | |
108 | ||
109 | static GSList *dev_list(void) | |
110 | { | |
111 | return ((struct drv_context *)(di->priv))->instances; | |
112 | } | |
113 | ||
114 | static int dev_open(struct sr_dev_inst *sdi) | |
115 | { | |
116 | struct sr_serial_dev_inst *serial; | |
117 | ||
118 | serial = sdi->conn; | |
119 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
120 | return SR_ERR; | |
121 | ||
122 | sdi->status = SR_ST_ACTIVE; | |
123 | ||
124 | return SR_OK; | |
125 | } | |
126 | ||
127 | static int cleanup(void) | |
128 | { | |
129 | return std_dev_clear(di, NULL); | |
130 | } | |
131 | ||
132 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, | |
133 | const struct sr_channel_group *cg) | |
134 | { | |
135 | struct dev_context *devc; | |
136 | ||
137 | (void)cg; | |
138 | ||
139 | if (sdi->status != SR_ST_ACTIVE) | |
140 | return SR_ERR_DEV_CLOSED; | |
141 | ||
142 | if (!(devc = sdi->priv)) { | |
143 | sr_err("sdi->priv was NULL."); | |
144 | return SR_ERR_BUG; | |
145 | } | |
146 | ||
147 | switch (id) { | |
148 | case SR_CONF_LIMIT_MSEC: | |
149 | /* TODO: not yet implemented */ | |
150 | if (g_variant_get_uint64(data) == 0) { | |
151 | sr_err("LIMIT_MSEC can't be 0."); | |
152 | return SR_ERR; | |
153 | } | |
154 | devc->limit_msec = g_variant_get_uint64(data);; | |
155 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
156 | devc->limit_msec); | |
157 | break; | |
158 | case SR_CONF_LIMIT_SAMPLES: | |
159 | devc->limit_samples = g_variant_get_uint64(data); | |
160 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
161 | devc->limit_samples); | |
162 | break; | |
163 | default: | |
164 | return SR_ERR_NA; | |
165 | } | |
166 | ||
167 | return SR_OK; | |
168 | } | |
169 | ||
170 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
171 | const struct sr_channel_group *cg) | |
172 | { | |
173 | (void)sdi; | |
174 | (void)cg; | |
175 | ||
176 | switch (key) { | |
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)); | |
180 | break; | |
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)); | |
184 | break; | |
185 | default: | |
186 | return SR_ERR_NA; | |
187 | } | |
188 | ||
189 | return SR_OK; | |
190 | } | |
191 | ||
192 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
193 | { | |
194 | struct dev_context *devc; | |
195 | struct sr_serial_dev_inst *serial; | |
196 | ||
197 | if (sdi->status != SR_ST_ACTIVE) | |
198 | return SR_ERR_DEV_CLOSED; | |
199 | ||
200 | if (!(devc = sdi->priv)) { | |
201 | sr_err("sdi->priv was NULL."); | |
202 | return SR_ERR_BUG; | |
203 | } | |
204 | ||
205 | devc->cb_data = cb_data; | |
206 | ||
207 | /* Send header packet to the session bus. */ | |
208 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
209 | ||
210 | /* Poll every 150ms, or whenever some data comes in. */ | |
211 | serial = sdi->conn; | |
212 | serial_source_add(sdi->session, serial, G_IO_IN, 150, | |
213 | colead_slm_receive_data, (void *)sdi); | |
214 | ||
215 | return SR_OK; | |
216 | } | |
217 | ||
218 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
219 | { | |
220 | return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, | |
221 | sdi->conn, LOG_PREFIX); | |
222 | } | |
223 | ||
224 | SR_PRIV struct sr_dev_driver colead_slm_driver_info = { | |
225 | .name = "colead-slm", | |
226 | .longname = "Colead SLM", | |
227 | .api_version = 1, | |
228 | .init = init, | |
229 | .cleanup = cleanup, | |
230 | .scan = scan, | |
231 | .dev_list = dev_list, | |
232 | .dev_clear = NULL, | |
233 | .config_get = NULL, | |
234 | .config_set = config_set, | |
235 | .config_list = config_list, | |
236 | .dev_open = dev_open, | |
237 | .dev_close = std_serial_dev_close, | |
238 | .dev_acquisition_start = dev_acquisition_start, | |
239 | .dev_acquisition_stop = dev_acquisition_stop, | |
240 | .priv = NULL, | |
241 | }; |