]>
Commit | Line | Data |
---|---|---|
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 | ||
20 | #include <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | static const uint32_t scanopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const uint32_t devopts[] = { | |
29 | SR_CONF_MULTIMETER, | |
30 | SR_CONF_CONTINUOUS, | |
31 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
32 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
33 | }; | |
34 | ||
35 | static GSList *brymen_scan(struct sr_dev_driver *di, const char *conn, | |
36 | const char *serialcomm) | |
37 | { | |
38 | struct sr_dev_inst *sdi; | |
39 | struct dev_context *devc; | |
40 | struct sr_serial_dev_inst *serial; | |
41 | GSList *devices; | |
42 | int ret; | |
43 | uint8_t buf[128]; | |
44 | size_t len; | |
45 | ||
46 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
47 | ||
48 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
49 | return NULL; | |
50 | ||
51 | sr_info("Probing port %s.", conn); | |
52 | ||
53 | devices = NULL; | |
54 | ||
55 | /* Request reading */ | |
56 | if ((ret = brymen_packet_request(serial)) < 0) { | |
57 | sr_err("Unable to send command: %d.", ret); | |
58 | goto scan_cleanup; | |
59 | } | |
60 | ||
61 | len = 128; | |
62 | ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length, | |
63 | brymen_packet_is_valid, 1000, 9600); | |
64 | if (ret != SR_OK) | |
65 | goto scan_cleanup; | |
66 | ||
67 | sr_info("Found device on port %s.", conn); | |
68 | ||
69 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
70 | sdi->status = SR_ST_INACTIVE; | |
71 | sdi->vendor = g_strdup("Brymen"); | |
72 | sdi->model = g_strdup("BM85x"); | |
73 | devc = g_malloc0(sizeof(struct dev_context)); | |
74 | sr_sw_limits_init(&devc->sw_limits); | |
75 | sdi->inst_type = SR_INST_SERIAL; | |
76 | sdi->conn = serial; | |
77 | sdi->priv = devc; | |
78 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
79 | devices = g_slist_append(devices, sdi); | |
80 | ||
81 | scan_cleanup: | |
82 | serial_close(serial); | |
83 | ||
84 | return std_scan_complete(di, devices); | |
85 | } | |
86 | ||
87 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
88 | { | |
89 | struct sr_config *src; | |
90 | GSList *devices, *l; | |
91 | const char *conn, *serialcomm; | |
92 | ||
93 | devices = NULL; | |
94 | ||
95 | conn = serialcomm = NULL; | |
96 | for (l = options; l; l = l->next) { | |
97 | src = l->data; | |
98 | switch (src->key) { | |
99 | case SR_CONF_CONN: | |
100 | conn = g_variant_get_string(src->data, NULL); | |
101 | break; | |
102 | case SR_CONF_SERIALCOMM: | |
103 | serialcomm = g_variant_get_string(src->data, NULL); | |
104 | break; | |
105 | } | |
106 | } | |
107 | if (!conn) | |
108 | return NULL; | |
109 | ||
110 | if (serialcomm) { | |
111 | /* Use the provided comm specs. */ | |
112 | devices = brymen_scan(di, conn, serialcomm); | |
113 | } else { | |
114 | /* But 9600/8n1 should work all of the time. */ | |
115 | devices = brymen_scan(di, conn, "9600/8n1/dtr=1/rts=1"); | |
116 | } | |
117 | ||
118 | return devices; | |
119 | } | |
120 | ||
121 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
122 | const struct sr_channel_group *cg) | |
123 | { | |
124 | struct dev_context *devc; | |
125 | ||
126 | (void)cg; | |
127 | ||
128 | if (sdi->status != SR_ST_ACTIVE) | |
129 | return SR_ERR_DEV_CLOSED; | |
130 | ||
131 | devc = sdi->priv; | |
132 | ||
133 | return sr_sw_limits_config_set(&devc->sw_limits, key, data); | |
134 | } | |
135 | ||
136 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
137 | const struct sr_channel_group *cg) | |
138 | { | |
139 | (void)sdi; | |
140 | (void)cg; | |
141 | ||
142 | switch (key) { | |
143 | case SR_CONF_SCAN_OPTIONS: | |
144 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
145 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
146 | break; | |
147 | case SR_CONF_DEVICE_OPTIONS: | |
148 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
149 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
150 | break; | |
151 | default: | |
152 | return SR_ERR_NA; | |
153 | } | |
154 | ||
155 | return SR_OK; | |
156 | } | |
157 | ||
158 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
159 | { | |
160 | struct dev_context *devc; | |
161 | struct sr_serial_dev_inst *serial; | |
162 | ||
163 | if (sdi->status != SR_ST_ACTIVE) | |
164 | return SR_ERR_DEV_CLOSED; | |
165 | ||
166 | devc = sdi->priv; | |
167 | ||
168 | sr_sw_limits_acquisition_start(&devc->sw_limits); | |
169 | std_session_send_df_header(sdi); | |
170 | ||
171 | /* Poll every 50ms, or whenever some data comes in. */ | |
172 | serial = sdi->conn; | |
173 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
174 | brymen_dmm_receive_data, (void *)sdi); | |
175 | ||
176 | return SR_OK; | |
177 | } | |
178 | ||
179 | static struct sr_dev_driver brymen_bm857_driver_info = { | |
180 | .name = "brymen-bm857", | |
181 | .longname = "Brymen BM857", | |
182 | .api_version = 1, | |
183 | .init = std_init, | |
184 | .cleanup = std_cleanup, | |
185 | .scan = scan, | |
186 | .dev_list = std_dev_list, | |
187 | .dev_clear = NULL, | |
188 | .config_get = NULL, | |
189 | .config_set = config_set, | |
190 | .config_list = config_list, | |
191 | .dev_open = std_serial_dev_open, | |
192 | .dev_close = std_serial_dev_close, | |
193 | .dev_acquisition_start = dev_acquisition_start, | |
194 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
195 | .context = NULL, | |
196 | }; | |
197 | SR_REGISTER_DEV_DRIVER(brymen_bm857_driver_info); |