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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 | ||
a0e0bb41 | 22 | static const uint32_t scanopts[] = { |
601fb67c AG |
23 | SR_CONF_CONN, |
24 | SR_CONF_SERIALCOMM, | |
601fb67c AG |
25 | }; |
26 | ||
f254bc4b | 27 | static const uint32_t devopts[] = { |
601fb67c | 28 | SR_CONF_MULTIMETER, |
601fb67c | 29 | SR_CONF_CONTINUOUS, |
5827f61b BV |
30 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
31 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
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 | ||
601fb67c | 42 | static GSList *brymen_scan(const char *conn, const char *serialcomm) |
20cbc785 | 43 | { |
601fb67c AG |
44 | struct sr_dev_inst *sdi; |
45 | struct dev_context *devc; | |
20cbc785 | 46 | struct drv_context *drvc; |
ba7dd8bb | 47 | struct sr_channel *ch; |
601fb67c AG |
48 | struct sr_serial_dev_inst *serial; |
49 | GSList *devices; | |
50 | int ret; | |
c5d6f5cc UH |
51 | uint8_t buf[128]; |
52 | size_t len; | |
20cbc785 | 53 | |
601fb67c AG |
54 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) |
55 | return NULL; | |
56 | ||
ca4266a0 | 57 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) |
601fb67c AG |
58 | return NULL; |
59 | ||
60 | sr_info("Probing port %s.", conn); | |
61 | ||
62 | devices = NULL; | |
63 | ||
64 | /* Request reading */ | |
c5d6f5cc UH |
65 | if ((ret = brymen_packet_request(serial)) < 0) { |
66 | sr_err("Unable to send command: %d.", ret); | |
601fb67c | 67 | goto scan_cleanup; |
20cbc785 AG |
68 | } |
69 | ||
c5d6f5cc | 70 | len = 128; |
601fb67c AG |
71 | ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length, |
72 | brymen_packet_is_valid, 1000, 9600); | |
73 | if (ret != SR_OK) | |
74 | goto scan_cleanup; | |
20cbc785 | 75 | |
601fb67c AG |
76 | sr_info("Found device on port %s.", conn); |
77 | ||
0af636be UH |
78 | sdi = sr_dev_inst_new(); |
79 | sdi->status = SR_ST_INACTIVE; | |
80 | sdi->vendor = g_strdup("Brymen"); | |
81 | sdi->model = g_strdup("BM85x"); | |
601fb67c AG |
82 | |
83 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
84 | sr_err("Device context malloc failed."); | |
85 | goto scan_cleanup; | |
86 | } | |
87 | ||
d9a7c349 UH |
88 | sdi->inst_type = SR_INST_SERIAL; |
89 | sdi->conn = serial; | |
601fb67c AG |
90 | drvc = di->priv; |
91 | sdi->priv = devc; | |
92 | sdi->driver = di; | |
93 | ||
3f239f08 | 94 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1"))) |
601fb67c AG |
95 | goto scan_cleanup; |
96 | ||
ba7dd8bb | 97 | sdi->channels = g_slist_append(sdi->channels, ch); |
601fb67c AG |
98 | drvc->instances = g_slist_append(drvc->instances, sdi); |
99 | devices = g_slist_append(devices, sdi); | |
100 | ||
601fb67c AG |
101 | scan_cleanup: |
102 | serial_close(serial); | |
103 | ||
104 | return devices; | |
20cbc785 AG |
105 | } |
106 | ||
6078d2c9 | 107 | static GSList *scan(GSList *options) |
20cbc785 AG |
108 | { |
109 | struct drv_context *drvc; | |
601fb67c AG |
110 | struct sr_config *src; |
111 | GSList *devices, *l; | |
112 | const char *conn, *serialcomm; | |
20cbc785 | 113 | |
20cbc785 AG |
114 | devices = NULL; |
115 | drvc = di->priv; | |
116 | drvc->instances = NULL; | |
117 | ||
601fb67c AG |
118 | conn = serialcomm = NULL; |
119 | for (l = options; l; l = l->next) { | |
120 | src = l->data; | |
121 | switch (src->key) { | |
c5d6f5cc | 122 | case SR_CONF_CONN: |
510b3e69 | 123 | conn = g_variant_get_string(src->data, NULL); |
c5d6f5cc UH |
124 | break; |
125 | case SR_CONF_SERIALCOMM: | |
510b3e69 | 126 | serialcomm = g_variant_get_string(src->data, NULL); |
c5d6f5cc | 127 | break; |
601fb67c AG |
128 | } |
129 | } | |
d9a7c349 | 130 | if (!conn) |
601fb67c | 131 | return NULL; |
601fb67c AG |
132 | |
133 | if (serialcomm) { | |
134 | /* Use the provided comm specs. */ | |
135 | devices = brymen_scan(conn, serialcomm); | |
136 | } else { | |
c5d6f5cc | 137 | /* But 9600/8n1 should work all of the time. */ |
601fb67c AG |
138 | devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1"); |
139 | } | |
20cbc785 AG |
140 | |
141 | return devices; | |
142 | } | |
143 | ||
6078d2c9 | 144 | static GSList *dev_list(void) |
20cbc785 | 145 | { |
0e94d524 | 146 | return ((struct drv_context *)(di->priv))->instances; |
20cbc785 AG |
147 | } |
148 | ||
6078d2c9 | 149 | static int cleanup(void) |
20cbc785 | 150 | { |
a6630742 | 151 | return std_dev_clear(di, NULL); |
20cbc785 AG |
152 | } |
153 | ||
584560f1 | 154 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 155 | const struct sr_channel_group *cg) |
20cbc785 | 156 | { |
601fb67c | 157 | struct dev_context *devc; |
20cbc785 AG |
158 | int ret; |
159 | ||
53b4680f | 160 | (void)cg; |
8f996b89 | 161 | |
e73ffd42 BV |
162 | if (sdi->status != SR_ST_ACTIVE) |
163 | return SR_ERR_DEV_CLOSED; | |
20cbc785 | 164 | |
601fb67c AG |
165 | if (!(devc = sdi->priv)) { |
166 | sr_err("sdi->priv was NULL."); | |
167 | return SR_ERR_BUG; | |
168 | } | |
169 | ||
20cbc785 | 170 | ret = SR_OK; |
584560f1 | 171 | switch (key) { |
c5d6f5cc | 172 | case SR_CONF_LIMIT_SAMPLES: |
510b3e69 | 173 | devc->limit_samples = g_variant_get_uint64(data); |
601fb67c | 174 | break; |
c5d6f5cc | 175 | case SR_CONF_LIMIT_MSEC: |
510b3e69 | 176 | devc->limit_msec = g_variant_get_uint64(data); |
601fb67c | 177 | break; |
20cbc785 | 178 | default: |
bd6fbf62 | 179 | ret = SR_ERR_NA; |
20cbc785 AG |
180 | } |
181 | ||
182 | return ret; | |
183 | } | |
184 | ||
584560f1 | 185 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 186 | const struct sr_channel_group *cg) |
510b3e69 BV |
187 | { |
188 | (void)sdi; | |
53b4680f | 189 | (void)cg; |
510b3e69 BV |
190 | |
191 | switch (key) { | |
192 | case SR_CONF_SCAN_OPTIONS: | |
584560f1 | 193 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 194 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
510b3e69 BV |
195 | break; |
196 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 197 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 198 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
510b3e69 BV |
199 | break; |
200 | default: | |
bd6fbf62 | 201 | return SR_ERR_NA; |
510b3e69 BV |
202 | } |
203 | ||
204 | return SR_OK; | |
205 | } | |
206 | ||
6078d2c9 | 207 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 208 | { |
601fb67c | 209 | struct dev_context *devc; |
d9a7c349 | 210 | struct sr_serial_dev_inst *serial; |
601fb67c | 211 | |
e73ffd42 BV |
212 | if (sdi->status != SR_ST_ACTIVE) |
213 | return SR_ERR_DEV_CLOSED; | |
214 | ||
601fb67c AG |
215 | if (!(devc = sdi->priv)) { |
216 | sr_err("sdi->priv was NULL."); | |
217 | return SR_ERR_BUG; | |
218 | } | |
219 | ||
601fb67c AG |
220 | devc->cb_data = cb_data; |
221 | ||
222 | /* | |
223 | * Reset the number of samples to take. If we've already collected our | |
224 | * quota, but we start a new session, and don't reset this, we'll just | |
225 | * quit without acquiring any new samples. | |
226 | */ | |
227 | devc->num_samples = 0; | |
228 | devc->starttime = g_get_monotonic_time(); | |
229 | ||
230 | /* Send header packet to the session bus. */ | |
29a27196 | 231 | std_session_send_df_header(cb_data, LOG_PREFIX); |
601fb67c AG |
232 | |
233 | /* Poll every 50ms, or whenever some data comes in. */ | |
d9a7c349 | 234 | serial = sdi->conn; |
102f1239 BV |
235 | serial_source_add(sdi->session, serial, G_IO_IN, 50, |
236 | brymen_dmm_receive_data, (void *)sdi); | |
20cbc785 AG |
237 | |
238 | return SR_OK; | |
239 | } | |
240 | ||
6078d2c9 | 241 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 242 | { |
d43b0908 BV |
243 | return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, |
244 | sdi->conn, LOG_PREFIX); | |
20cbc785 AG |
245 | } |
246 | ||
c5d6f5cc UH |
247 | SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = { |
248 | .name = "brymen-bm857", | |
249 | .longname = "Brymen BM857", | |
20cbc785 | 250 | .api_version = 1, |
6078d2c9 UH |
251 | .init = init, |
252 | .cleanup = cleanup, | |
253 | .scan = scan, | |
254 | .dev_list = dev_list, | |
a6630742 | 255 | .dev_clear = NULL, |
6fab7b8f UH |
256 | .config_get = NULL, |
257 | .config_set = config_set, | |
258 | .config_list = config_list, | |
854434de | 259 | .dev_open = std_serial_dev_open, |
bf2c987f | 260 | .dev_close = std_serial_dev_close, |
6078d2c9 UH |
261 | .dev_acquisition_start = dev_acquisition_start, |
262 | .dev_acquisition_stop = dev_acquisition_stop, | |
20cbc785 AG |
263 | .priv = NULL, |
264 | }; |