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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 | |
4f840ce9 | 37 | static int init(struct sr_dev_driver *di, 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; |
601fb67c AG |
47 | struct sr_serial_dev_inst *serial; |
48 | GSList *devices; | |
49 | int ret; | |
c5d6f5cc UH |
50 | uint8_t buf[128]; |
51 | size_t len; | |
20cbc785 | 52 | |
91219afc | 53 | serial = sr_serial_dev_inst_new(conn, serialcomm); |
601fb67c | 54 | |
ca4266a0 | 55 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) |
601fb67c AG |
56 | return NULL; |
57 | ||
58 | sr_info("Probing port %s.", conn); | |
59 | ||
60 | devices = NULL; | |
61 | ||
62 | /* Request reading */ | |
c5d6f5cc UH |
63 | if ((ret = brymen_packet_request(serial)) < 0) { |
64 | sr_err("Unable to send command: %d.", ret); | |
601fb67c | 65 | goto scan_cleanup; |
20cbc785 AG |
66 | } |
67 | ||
c5d6f5cc | 68 | len = 128; |
601fb67c AG |
69 | ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length, |
70 | brymen_packet_is_valid, 1000, 9600); | |
71 | if (ret != SR_OK) | |
72 | goto scan_cleanup; | |
20cbc785 | 73 | |
601fb67c AG |
74 | sr_info("Found device on port %s.", conn); |
75 | ||
aac29cc1 | 76 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
77 | sdi->status = SR_ST_INACTIVE; |
78 | sdi->vendor = g_strdup("Brymen"); | |
79 | sdi->model = g_strdup("BM85x"); | |
f57d8ffe | 80 | devc = g_malloc0(sizeof(struct dev_context)); |
d9a7c349 UH |
81 | sdi->inst_type = SR_INST_SERIAL; |
82 | sdi->conn = serial; | |
41812aca | 83 | drvc = di->context; |
601fb67c AG |
84 | sdi->priv = devc; |
85 | sdi->driver = di; | |
5e23fcab | 86 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); |
601fb67c AG |
87 | drvc->instances = g_slist_append(drvc->instances, sdi); |
88 | devices = g_slist_append(devices, sdi); | |
89 | ||
601fb67c AG |
90 | scan_cleanup: |
91 | serial_close(serial); | |
92 | ||
93 | return devices; | |
20cbc785 AG |
94 | } |
95 | ||
4f840ce9 | 96 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
20cbc785 AG |
97 | { |
98 | struct drv_context *drvc; | |
601fb67c AG |
99 | struct sr_config *src; |
100 | GSList *devices, *l; | |
101 | const char *conn, *serialcomm; | |
20cbc785 | 102 | |
20cbc785 | 103 | devices = NULL; |
41812aca | 104 | drvc = di->context; |
20cbc785 AG |
105 | drvc->instances = NULL; |
106 | ||
601fb67c AG |
107 | conn = serialcomm = NULL; |
108 | for (l = options; l; l = l->next) { | |
109 | src = l->data; | |
110 | switch (src->key) { | |
c5d6f5cc | 111 | case SR_CONF_CONN: |
510b3e69 | 112 | conn = g_variant_get_string(src->data, NULL); |
c5d6f5cc UH |
113 | break; |
114 | case SR_CONF_SERIALCOMM: | |
510b3e69 | 115 | serialcomm = g_variant_get_string(src->data, NULL); |
c5d6f5cc | 116 | break; |
601fb67c AG |
117 | } |
118 | } | |
d9a7c349 | 119 | if (!conn) |
601fb67c | 120 | return NULL; |
601fb67c AG |
121 | |
122 | if (serialcomm) { | |
123 | /* Use the provided comm specs. */ | |
124 | devices = brymen_scan(conn, serialcomm); | |
125 | } else { | |
c5d6f5cc | 126 | /* But 9600/8n1 should work all of the time. */ |
601fb67c AG |
127 | devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1"); |
128 | } | |
20cbc785 AG |
129 | |
130 | return devices; | |
131 | } | |
132 | ||
4f840ce9 | 133 | static GSList *dev_list(const struct sr_dev_driver *di) |
20cbc785 | 134 | { |
41812aca | 135 | return ((struct drv_context *)(di->context))->instances; |
20cbc785 AG |
136 | } |
137 | ||
4f840ce9 | 138 | static int cleanup(const struct sr_dev_driver *di) |
20cbc785 | 139 | { |
a6630742 | 140 | return std_dev_clear(di, NULL); |
20cbc785 AG |
141 | } |
142 | ||
584560f1 | 143 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 144 | const struct sr_channel_group *cg) |
20cbc785 | 145 | { |
601fb67c | 146 | struct dev_context *devc; |
20cbc785 AG |
147 | int ret; |
148 | ||
53b4680f | 149 | (void)cg; |
8f996b89 | 150 | |
e73ffd42 BV |
151 | if (sdi->status != SR_ST_ACTIVE) |
152 | return SR_ERR_DEV_CLOSED; | |
20cbc785 | 153 | |
601fb67c AG |
154 | if (!(devc = sdi->priv)) { |
155 | sr_err("sdi->priv was NULL."); | |
156 | return SR_ERR_BUG; | |
157 | } | |
158 | ||
20cbc785 | 159 | ret = SR_OK; |
584560f1 | 160 | switch (key) { |
c5d6f5cc | 161 | case SR_CONF_LIMIT_SAMPLES: |
510b3e69 | 162 | devc->limit_samples = g_variant_get_uint64(data); |
601fb67c | 163 | break; |
c5d6f5cc | 164 | case SR_CONF_LIMIT_MSEC: |
510b3e69 | 165 | devc->limit_msec = g_variant_get_uint64(data); |
601fb67c | 166 | break; |
20cbc785 | 167 | default: |
bd6fbf62 | 168 | ret = SR_ERR_NA; |
20cbc785 AG |
169 | } |
170 | ||
171 | return ret; | |
172 | } | |
173 | ||
584560f1 | 174 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 175 | const struct sr_channel_group *cg) |
510b3e69 BV |
176 | { |
177 | (void)sdi; | |
53b4680f | 178 | (void)cg; |
510b3e69 BV |
179 | |
180 | switch (key) { | |
181 | case SR_CONF_SCAN_OPTIONS: | |
584560f1 | 182 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 183 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
510b3e69 BV |
184 | break; |
185 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 186 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 187 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
510b3e69 BV |
188 | break; |
189 | default: | |
bd6fbf62 | 190 | return SR_ERR_NA; |
510b3e69 BV |
191 | } |
192 | ||
193 | return SR_OK; | |
194 | } | |
195 | ||
6078d2c9 | 196 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 197 | { |
601fb67c | 198 | struct dev_context *devc; |
d9a7c349 | 199 | struct sr_serial_dev_inst *serial; |
601fb67c | 200 | |
e73ffd42 BV |
201 | if (sdi->status != SR_ST_ACTIVE) |
202 | return SR_ERR_DEV_CLOSED; | |
203 | ||
601fb67c AG |
204 | if (!(devc = sdi->priv)) { |
205 | sr_err("sdi->priv was NULL."); | |
206 | return SR_ERR_BUG; | |
207 | } | |
208 | ||
601fb67c AG |
209 | devc->cb_data = cb_data; |
210 | ||
211 | /* | |
212 | * Reset the number of samples to take. If we've already collected our | |
213 | * quota, but we start a new session, and don't reset this, we'll just | |
214 | * quit without acquiring any new samples. | |
215 | */ | |
216 | devc->num_samples = 0; | |
217 | devc->starttime = g_get_monotonic_time(); | |
218 | ||
219 | /* Send header packet to the session bus. */ | |
29a27196 | 220 | std_session_send_df_header(cb_data, LOG_PREFIX); |
601fb67c AG |
221 | |
222 | /* Poll every 50ms, or whenever some data comes in. */ | |
d9a7c349 | 223 | serial = sdi->conn; |
102f1239 BV |
224 | serial_source_add(sdi->session, serial, G_IO_IN, 50, |
225 | brymen_dmm_receive_data, (void *)sdi); | |
20cbc785 AG |
226 | |
227 | return SR_OK; | |
228 | } | |
229 | ||
6078d2c9 | 230 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 231 | { |
d43b0908 BV |
232 | return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, |
233 | sdi->conn, LOG_PREFIX); | |
20cbc785 AG |
234 | } |
235 | ||
c5d6f5cc UH |
236 | SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = { |
237 | .name = "brymen-bm857", | |
238 | .longname = "Brymen BM857", | |
20cbc785 | 239 | .api_version = 1, |
6078d2c9 UH |
240 | .init = init, |
241 | .cleanup = cleanup, | |
242 | .scan = scan, | |
243 | .dev_list = dev_list, | |
a6630742 | 244 | .dev_clear = NULL, |
6fab7b8f UH |
245 | .config_get = NULL, |
246 | .config_set = config_set, | |
247 | .config_list = config_list, | |
854434de | 248 | .dev_open = std_serial_dev_open, |
bf2c987f | 249 | .dev_close = std_serial_dev_close, |
6078d2c9 UH |
250 | .dev_acquisition_start = dev_acquisition_start, |
251 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 252 | .context = NULL, |
20cbc785 | 253 | }; |