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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 | ||
6ec6c43b | 20 | #include <config.h> |
20cbc785 AG |
21 | #include "protocol.h" |
22 | ||
a0e0bb41 | 23 | static const uint32_t scanopts[] = { |
601fb67c AG |
24 | SR_CONF_CONN, |
25 | SR_CONF_SERIALCOMM, | |
601fb67c AG |
26 | }; |
27 | ||
f254bc4b | 28 | static const uint32_t devopts[] = { |
601fb67c | 29 | SR_CONF_MULTIMETER, |
601fb67c | 30 | SR_CONF_CONTINUOUS, |
5827f61b BV |
31 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
32 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
601fb67c AG |
33 | }; |
34 | ||
e32862eb LPC |
35 | static GSList *brymen_scan(struct sr_dev_driver *di, const char *conn, |
36 | const char *serialcomm) | |
20cbc785 | 37 | { |
601fb67c AG |
38 | struct sr_dev_inst *sdi; |
39 | struct dev_context *devc; | |
20cbc785 | 40 | struct drv_context *drvc; |
601fb67c AG |
41 | struct sr_serial_dev_inst *serial; |
42 | GSList *devices; | |
43 | int ret; | |
c5d6f5cc UH |
44 | uint8_t buf[128]; |
45 | size_t len; | |
20cbc785 | 46 | |
91219afc | 47 | serial = sr_serial_dev_inst_new(conn, serialcomm); |
601fb67c | 48 | |
ca4266a0 | 49 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) |
601fb67c AG |
50 | return NULL; |
51 | ||
52 | sr_info("Probing port %s.", conn); | |
53 | ||
54 | devices = NULL; | |
55 | ||
56 | /* Request reading */ | |
c5d6f5cc UH |
57 | if ((ret = brymen_packet_request(serial)) < 0) { |
58 | sr_err("Unable to send command: %d.", ret); | |
601fb67c | 59 | goto scan_cleanup; |
20cbc785 AG |
60 | } |
61 | ||
c5d6f5cc | 62 | len = 128; |
601fb67c AG |
63 | ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length, |
64 | brymen_packet_is_valid, 1000, 9600); | |
65 | if (ret != SR_OK) | |
66 | goto scan_cleanup; | |
20cbc785 | 67 | |
601fb67c AG |
68 | sr_info("Found device on port %s.", conn); |
69 | ||
aac29cc1 | 70 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
71 | sdi->status = SR_ST_INACTIVE; |
72 | sdi->vendor = g_strdup("Brymen"); | |
73 | sdi->model = g_strdup("BM85x"); | |
f57d8ffe | 74 | devc = g_malloc0(sizeof(struct dev_context)); |
dcba0c41 | 75 | sr_sw_limits_init(&devc->sw_limits); |
d9a7c349 UH |
76 | sdi->inst_type = SR_INST_SERIAL; |
77 | sdi->conn = serial; | |
41812aca | 78 | drvc = di->context; |
601fb67c AG |
79 | sdi->priv = devc; |
80 | sdi->driver = di; | |
5e23fcab | 81 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); |
601fb67c AG |
82 | drvc->instances = g_slist_append(drvc->instances, sdi); |
83 | devices = g_slist_append(devices, sdi); | |
84 | ||
601fb67c AG |
85 | scan_cleanup: |
86 | serial_close(serial); | |
87 | ||
88 | return devices; | |
20cbc785 AG |
89 | } |
90 | ||
4f840ce9 | 91 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
20cbc785 AG |
92 | { |
93 | struct drv_context *drvc; | |
601fb67c AG |
94 | struct sr_config *src; |
95 | GSList *devices, *l; | |
96 | const char *conn, *serialcomm; | |
20cbc785 | 97 | |
20cbc785 | 98 | devices = NULL; |
41812aca | 99 | drvc = di->context; |
20cbc785 AG |
100 | drvc->instances = NULL; |
101 | ||
601fb67c AG |
102 | conn = serialcomm = NULL; |
103 | for (l = options; l; l = l->next) { | |
104 | src = l->data; | |
105 | switch (src->key) { | |
c5d6f5cc | 106 | case SR_CONF_CONN: |
510b3e69 | 107 | conn = g_variant_get_string(src->data, NULL); |
c5d6f5cc UH |
108 | break; |
109 | case SR_CONF_SERIALCOMM: | |
510b3e69 | 110 | serialcomm = g_variant_get_string(src->data, NULL); |
c5d6f5cc | 111 | break; |
601fb67c AG |
112 | } |
113 | } | |
d9a7c349 | 114 | if (!conn) |
601fb67c | 115 | return NULL; |
601fb67c AG |
116 | |
117 | if (serialcomm) { | |
118 | /* Use the provided comm specs. */ | |
e32862eb | 119 | devices = brymen_scan(di, conn, serialcomm); |
601fb67c | 120 | } else { |
c5d6f5cc | 121 | /* But 9600/8n1 should work all of the time. */ |
e32862eb | 122 | devices = brymen_scan(di, conn, "9600/8n1/dtr=1/rts=1"); |
601fb67c | 123 | } |
20cbc785 AG |
124 | |
125 | return devices; | |
126 | } | |
127 | ||
584560f1 | 128 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 129 | const struct sr_channel_group *cg) |
20cbc785 | 130 | { |
601fb67c | 131 | struct dev_context *devc; |
20cbc785 | 132 | |
53b4680f | 133 | (void)cg; |
8f996b89 | 134 | |
e73ffd42 BV |
135 | if (sdi->status != SR_ST_ACTIVE) |
136 | return SR_ERR_DEV_CLOSED; | |
20cbc785 | 137 | |
b0baddef | 138 | devc = sdi->priv; |
601fb67c | 139 | |
dcba0c41 | 140 | return sr_sw_limits_config_set(&devc->sw_limits, key, data); |
20cbc785 AG |
141 | } |
142 | ||
584560f1 | 143 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 144 | const struct sr_channel_group *cg) |
510b3e69 BV |
145 | { |
146 | (void)sdi; | |
53b4680f | 147 | (void)cg; |
510b3e69 BV |
148 | |
149 | switch (key) { | |
150 | case SR_CONF_SCAN_OPTIONS: | |
584560f1 | 151 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 152 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
510b3e69 BV |
153 | break; |
154 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 155 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 156 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
510b3e69 BV |
157 | break; |
158 | default: | |
bd6fbf62 | 159 | return SR_ERR_NA; |
510b3e69 BV |
160 | } |
161 | ||
162 | return SR_OK; | |
163 | } | |
164 | ||
695dc859 | 165 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
20cbc785 | 166 | { |
601fb67c | 167 | struct dev_context *devc; |
d9a7c349 | 168 | struct sr_serial_dev_inst *serial; |
601fb67c | 169 | |
e73ffd42 BV |
170 | if (sdi->status != SR_ST_ACTIVE) |
171 | return SR_ERR_DEV_CLOSED; | |
172 | ||
208c1d35 | 173 | devc = sdi->priv; |
601fb67c | 174 | |
dcba0c41 | 175 | sr_sw_limits_acquisition_start(&devc->sw_limits); |
695dc859 | 176 | std_session_send_df_header(sdi, LOG_PREFIX); |
601fb67c AG |
177 | |
178 | /* Poll every 50ms, or whenever some data comes in. */ | |
d9a7c349 | 179 | serial = sdi->conn; |
102f1239 BV |
180 | serial_source_add(sdi->session, serial, G_IO_IN, 50, |
181 | brymen_dmm_receive_data, (void *)sdi); | |
20cbc785 AG |
182 | |
183 | return SR_OK; | |
184 | } | |
185 | ||
695dc859 | 186 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
20cbc785 | 187 | { |
6525d819 | 188 | return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close, |
d43b0908 | 189 | sdi->conn, LOG_PREFIX); |
20cbc785 AG |
190 | } |
191 | ||
dd5c48a6 | 192 | static struct sr_dev_driver brymen_bm857_driver_info = { |
c5d6f5cc UH |
193 | .name = "brymen-bm857", |
194 | .longname = "Brymen BM857", | |
20cbc785 | 195 | .api_version = 1, |
c2fdcc25 | 196 | .init = std_init, |
700d6b64 | 197 | .cleanup = std_cleanup, |
6078d2c9 | 198 | .scan = scan, |
c01bf34c | 199 | .dev_list = std_dev_list, |
a6630742 | 200 | .dev_clear = NULL, |
6fab7b8f UH |
201 | .config_get = NULL, |
202 | .config_set = config_set, | |
203 | .config_list = config_list, | |
854434de | 204 | .dev_open = std_serial_dev_open, |
bf2c987f | 205 | .dev_close = std_serial_dev_close, |
6078d2c9 UH |
206 | .dev_acquisition_start = dev_acquisition_start, |
207 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 208 | .context = NULL, |
20cbc785 | 209 | }; |
dd5c48a6 | 210 | SR_REGISTER_DEV_DRIVER(brymen_bm857_driver_info); |