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20cbc785 AG |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.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 | ||
20cbc785 AG |
20 | #include "protocol.h" |
21 | ||
510b3e69 | 22 | static const int32_t hwopts[] = { |
601fb67c AG |
23 | SR_CONF_CONN, |
24 | SR_CONF_SERIALCOMM, | |
601fb67c AG |
25 | }; |
26 | ||
510b3e69 | 27 | static const int32_t hwcaps[] = { |
601fb67c AG |
28 | SR_CONF_MULTIMETER, |
29 | SR_CONF_LIMIT_SAMPLES, | |
30 | SR_CONF_CONTINUOUS, | |
31 | SR_CONF_LIMIT_MSEC, | |
601fb67c AG |
32 | }; |
33 | ||
c5d6f5cc UH |
34 | SR_PRIV struct sr_dev_driver brymen_bm857_driver_info; |
35 | static struct sr_dev_driver *di = &brymen_bm857_driver_info; | |
20cbc785 | 36 | |
6078d2c9 | 37 | static int init(struct sr_context *sr_ctx) |
601fb67c | 38 | { |
f6beaac5 | 39 | return std_init(sr_ctx, di, LOG_PREFIX); |
601fb67c AG |
40 | } |
41 | ||
3b412e3a | 42 | static int dev_clear(void) |
20cbc785 | 43 | { |
40bbc642 | 44 | return std_dev_clear(di, NULL); |
20cbc785 AG |
45 | } |
46 | ||
601fb67c | 47 | static GSList *brymen_scan(const char *conn, const char *serialcomm) |
20cbc785 | 48 | { |
601fb67c AG |
49 | struct sr_dev_inst *sdi; |
50 | struct dev_context *devc; | |
20cbc785 | 51 | struct drv_context *drvc; |
601fb67c AG |
52 | struct sr_probe *probe; |
53 | struct sr_serial_dev_inst *serial; | |
54 | GSList *devices; | |
55 | int ret; | |
c5d6f5cc UH |
56 | uint8_t buf[128]; |
57 | size_t len; | |
20cbc785 | 58 | |
601fb67c AG |
59 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) |
60 | return NULL; | |
61 | ||
c5d6f5cc | 62 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) |
601fb67c AG |
63 | return NULL; |
64 | ||
65 | sr_info("Probing port %s.", conn); | |
66 | ||
67 | devices = NULL; | |
68 | ||
69 | /* Request reading */ | |
c5d6f5cc UH |
70 | if ((ret = brymen_packet_request(serial)) < 0) { |
71 | sr_err("Unable to send command: %d.", ret); | |
601fb67c | 72 | goto scan_cleanup; |
20cbc785 AG |
73 | } |
74 | ||
c5d6f5cc | 75 | len = 128; |
601fb67c AG |
76 | ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length, |
77 | brymen_packet_is_valid, 1000, 9600); | |
78 | if (ret != SR_OK) | |
79 | goto scan_cleanup; | |
20cbc785 | 80 | |
601fb67c AG |
81 | sr_info("Found device on port %s.", conn); |
82 | ||
83 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Brymen", "BM85x", ""))) | |
84 | goto scan_cleanup; | |
85 | ||
86 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
87 | sr_err("Device context malloc failed."); | |
88 | goto scan_cleanup; | |
89 | } | |
90 | ||
d9a7c349 UH |
91 | sdi->inst_type = SR_INST_SERIAL; |
92 | sdi->conn = serial; | |
601fb67c AG |
93 | drvc = di->priv; |
94 | sdi->priv = devc; | |
95 | sdi->driver = di; | |
96 | ||
97 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) | |
98 | goto scan_cleanup; | |
99 | ||
100 | sdi->probes = g_slist_append(sdi->probes, probe); | |
101 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
102 | devices = g_slist_append(devices, sdi); | |
103 | ||
601fb67c AG |
104 | scan_cleanup: |
105 | serial_close(serial); | |
106 | ||
107 | return devices; | |
20cbc785 AG |
108 | } |
109 | ||
6078d2c9 | 110 | static GSList *scan(GSList *options) |
20cbc785 AG |
111 | { |
112 | struct drv_context *drvc; | |
601fb67c AG |
113 | struct sr_config *src; |
114 | GSList *devices, *l; | |
115 | const char *conn, *serialcomm; | |
20cbc785 | 116 | |
20cbc785 AG |
117 | devices = NULL; |
118 | drvc = di->priv; | |
119 | drvc->instances = NULL; | |
120 | ||
601fb67c AG |
121 | conn = serialcomm = NULL; |
122 | for (l = options; l; l = l->next) { | |
123 | src = l->data; | |
124 | switch (src->key) { | |
c5d6f5cc | 125 | case SR_CONF_CONN: |
510b3e69 | 126 | conn = g_variant_get_string(src->data, NULL); |
c5d6f5cc UH |
127 | break; |
128 | case SR_CONF_SERIALCOMM: | |
510b3e69 | 129 | serialcomm = g_variant_get_string(src->data, NULL); |
c5d6f5cc | 130 | break; |
601fb67c AG |
131 | } |
132 | } | |
d9a7c349 | 133 | if (!conn) |
601fb67c | 134 | return NULL; |
601fb67c AG |
135 | |
136 | if (serialcomm) { | |
137 | /* Use the provided comm specs. */ | |
138 | devices = brymen_scan(conn, serialcomm); | |
139 | } else { | |
c5d6f5cc | 140 | /* But 9600/8n1 should work all of the time. */ |
601fb67c AG |
141 | devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1"); |
142 | } | |
20cbc785 AG |
143 | |
144 | return devices; | |
145 | } | |
146 | ||
6078d2c9 | 147 | static GSList *dev_list(void) |
20cbc785 | 148 | { |
0e94d524 | 149 | return ((struct drv_context *)(di->priv))->instances; |
20cbc785 AG |
150 | } |
151 | ||
6078d2c9 | 152 | static int dev_open(struct sr_dev_inst *sdi) |
20cbc785 | 153 | { |
d9a7c349 | 154 | struct sr_serial_dev_inst *serial; |
601fb67c | 155 | |
d9a7c349 UH |
156 | serial = sdi->conn; |
157 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
601fb67c AG |
158 | return SR_ERR; |
159 | ||
160 | sdi->status = SR_ST_ACTIVE; | |
20cbc785 AG |
161 | |
162 | return SR_OK; | |
163 | } | |
164 | ||
6078d2c9 | 165 | static int dev_close(struct sr_dev_inst *sdi) |
20cbc785 | 166 | { |
d9a7c349 | 167 | struct sr_serial_dev_inst *serial; |
601fb67c | 168 | |
d9a7c349 UH |
169 | serial = sdi->conn; |
170 | if (serial && serial->fd != -1) { | |
171 | serial_close(serial); | |
601fb67c AG |
172 | sdi->status = SR_ST_INACTIVE; |
173 | } | |
20cbc785 AG |
174 | |
175 | return SR_OK; | |
176 | } | |
177 | ||
6078d2c9 | 178 | static int cleanup(void) |
20cbc785 | 179 | { |
3b412e3a | 180 | return dev_clear(); |
20cbc785 AG |
181 | } |
182 | ||
510b3e69 | 183 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) |
20cbc785 | 184 | { |
601fb67c | 185 | struct dev_context *devc; |
20cbc785 AG |
186 | int ret; |
187 | ||
e73ffd42 BV |
188 | if (sdi->status != SR_ST_ACTIVE) |
189 | return SR_ERR_DEV_CLOSED; | |
20cbc785 | 190 | |
601fb67c AG |
191 | if (!(devc = sdi->priv)) { |
192 | sr_err("sdi->priv was NULL."); | |
193 | return SR_ERR_BUG; | |
194 | } | |
195 | ||
20cbc785 | 196 | ret = SR_OK; |
601fb67c | 197 | switch (id) { |
c5d6f5cc | 198 | case SR_CONF_LIMIT_SAMPLES: |
510b3e69 | 199 | devc->limit_samples = g_variant_get_uint64(data); |
601fb67c | 200 | break; |
c5d6f5cc | 201 | case SR_CONF_LIMIT_MSEC: |
510b3e69 | 202 | devc->limit_msec = g_variant_get_uint64(data); |
601fb67c | 203 | break; |
20cbc785 | 204 | default: |
bd6fbf62 | 205 | ret = SR_ERR_NA; |
20cbc785 AG |
206 | } |
207 | ||
208 | return ret; | |
209 | } | |
210 | ||
510b3e69 BV |
211 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) |
212 | { | |
213 | (void)sdi; | |
214 | ||
215 | switch (key) { | |
216 | case SR_CONF_SCAN_OPTIONS: | |
217 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
218 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
219 | break; | |
220 | case SR_CONF_DEVICE_OPTIONS: | |
221 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
222 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
223 | break; | |
224 | default: | |
bd6fbf62 | 225 | return SR_ERR_NA; |
510b3e69 BV |
226 | } |
227 | ||
228 | return SR_OK; | |
229 | } | |
230 | ||
6078d2c9 | 231 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 232 | { |
601fb67c | 233 | struct dev_context *devc; |
d9a7c349 | 234 | struct sr_serial_dev_inst *serial; |
601fb67c | 235 | |
e73ffd42 BV |
236 | if (sdi->status != SR_ST_ACTIVE) |
237 | return SR_ERR_DEV_CLOSED; | |
238 | ||
601fb67c AG |
239 | if (!(devc = sdi->priv)) { |
240 | sr_err("sdi->priv was NULL."); | |
241 | return SR_ERR_BUG; | |
242 | } | |
243 | ||
601fb67c AG |
244 | devc->cb_data = cb_data; |
245 | ||
246 | /* | |
247 | * Reset the number of samples to take. If we've already collected our | |
248 | * quota, but we start a new session, and don't reset this, we'll just | |
249 | * quit without acquiring any new samples. | |
250 | */ | |
251 | devc->num_samples = 0; | |
252 | devc->starttime = g_get_monotonic_time(); | |
253 | ||
254 | /* Send header packet to the session bus. */ | |
29a27196 | 255 | std_session_send_df_header(cb_data, LOG_PREFIX); |
601fb67c AG |
256 | |
257 | /* Poll every 50ms, or whenever some data comes in. */ | |
d9a7c349 UH |
258 | serial = sdi->conn; |
259 | sr_source_add(serial->fd, G_IO_IN, 50, | |
601fb67c | 260 | brymen_dmm_receive_data, (void *)sdi); |
20cbc785 AG |
261 | |
262 | return SR_OK; | |
263 | } | |
264 | ||
6078d2c9 | 265 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 266 | { |
f6beaac5 UH |
267 | return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close, |
268 | sdi->conn, LOG_PREFIX); | |
20cbc785 AG |
269 | } |
270 | ||
c5d6f5cc UH |
271 | SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = { |
272 | .name = "brymen-bm857", | |
273 | .longname = "Brymen BM857", | |
20cbc785 | 274 | .api_version = 1, |
6078d2c9 UH |
275 | .init = init, |
276 | .cleanup = cleanup, | |
277 | .scan = scan, | |
278 | .dev_list = dev_list, | |
3b412e3a | 279 | .dev_clear = dev_clear, |
6fab7b8f UH |
280 | .config_get = NULL, |
281 | .config_set = config_set, | |
282 | .config_list = config_list, | |
6078d2c9 UH |
283 | .dev_open = dev_open, |
284 | .dev_close = dev_close, | |
285 | .dev_acquisition_start = dev_acquisition_start, | |
286 | .dev_acquisition_stop = dev_acquisition_stop, | |
20cbc785 AG |
287 | .priv = NULL, |
288 | }; |