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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> | |
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 | #define BRYMEN_BC86X "0820.0001" | |
24 | ||
25 | static const uint32_t scanopts[] = { | |
26 | SR_CONF_CONN, | |
27 | }; | |
28 | ||
29 | static const uint32_t drvopts[] = { | |
30 | SR_CONF_MULTIMETER, | |
31 | }; | |
32 | ||
33 | static const uint32_t devopts[] = { | |
34 | SR_CONF_CONTINUOUS, | |
35 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
36 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
37 | }; | |
38 | ||
39 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
40 | { | |
41 | GSList *usb_devices, *devices, *l; | |
42 | struct drv_context *drvc; | |
43 | struct dev_context *devc; | |
44 | struct sr_dev_inst *sdi; | |
45 | struct sr_usb_dev_inst *usb; | |
46 | struct sr_config *src; | |
47 | const char *conn; | |
48 | ||
49 | drvc = di->context; | |
50 | ||
51 | conn = BRYMEN_BC86X; | |
52 | for (l = options; l; l = l->next) { | |
53 | src = l->data; | |
54 | switch (src->key) { | |
55 | case SR_CONF_CONN: | |
56 | conn = g_variant_get_string(src->data, NULL); | |
57 | break; | |
58 | } | |
59 | } | |
60 | ||
61 | devices = NULL; | |
62 | if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) | |
63 | return NULL; | |
64 | ||
65 | for (l = usb_devices; l; l = l->next) { | |
66 | usb = l->data; | |
67 | ||
68 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
69 | sdi->status = SR_ST_INACTIVE; | |
70 | sdi->vendor = g_strdup("Brymen"); | |
71 | sdi->model = g_strdup("BM869"); | |
72 | devc = g_malloc0(sizeof(struct dev_context)); | |
73 | sdi->priv = devc; | |
74 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
75 | sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "P2"); | |
76 | ||
77 | sdi->inst_type = SR_INST_USB; | |
78 | sdi->conn = usb; | |
79 | ||
80 | sr_sw_limits_init(&devc->sw_limits); | |
81 | ||
82 | devices = g_slist_append(devices, sdi); | |
83 | } | |
84 | ||
85 | return std_scan_complete(di, devices); | |
86 | } | |
87 | ||
88 | static int dev_open(struct sr_dev_inst *sdi) | |
89 | { | |
90 | struct sr_dev_driver *di = sdi->driver; | |
91 | struct drv_context *drvc = di->context; | |
92 | struct sr_usb_dev_inst *usb; | |
93 | struct dev_context *devc; | |
94 | int ret; | |
95 | ||
96 | usb = sdi->conn; | |
97 | devc = sdi->priv; | |
98 | ||
99 | if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) < 0) | |
100 | return SR_ERR; | |
101 | ||
102 | if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) { | |
103 | ret = libusb_detach_kernel_driver(usb->devhdl, 0); | |
104 | if (ret < 0) { | |
105 | sr_err("Failed to detach kernel driver: %s.", | |
106 | libusb_error_name(ret)); | |
107 | return SR_ERR; | |
108 | } | |
109 | devc->detached_kernel_driver = 1; | |
110 | } | |
111 | ||
112 | if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) { | |
113 | sr_err("Failed to claim interface 0: %s.", | |
114 | libusb_error_name(ret)); | |
115 | return SR_ERR; | |
116 | } | |
117 | ||
118 | return SR_OK; | |
119 | } | |
120 | ||
121 | static int dev_close(struct sr_dev_inst *sdi) | |
122 | { | |
123 | struct sr_usb_dev_inst *usb; | |
124 | struct dev_context *devc; | |
125 | int ret; | |
126 | ||
127 | usb = sdi->conn; | |
128 | devc = sdi->priv; | |
129 | ||
130 | if (!usb->devhdl) | |
131 | return SR_OK; | |
132 | ||
133 | if ((ret = libusb_release_interface(usb->devhdl, 0))) | |
134 | sr_err("Failed to release interface 0: %s.\n", libusb_error_name(ret)); | |
135 | ||
136 | if (!ret && devc->detached_kernel_driver) { | |
137 | if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0))) | |
138 | sr_err("Failed to attach kernel driver: %s.\n", | |
139 | libusb_error_name(ret)); | |
140 | else | |
141 | devc->detached_kernel_driver = 0; | |
142 | } | |
143 | ||
144 | libusb_close(usb->devhdl); | |
145 | ||
146 | return (ret == 0) ? SR_OK : SR_ERR; | |
147 | } | |
148 | ||
149 | static int config_get(uint32_t key, GVariant **data, | |
150 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
151 | { | |
152 | struct dev_context *devc = sdi->priv; | |
153 | ||
154 | (void)cg; | |
155 | ||
156 | return sr_sw_limits_config_get(&devc->sw_limits, key, data); | |
157 | } | |
158 | ||
159 | static int config_set(uint32_t key, GVariant *data, | |
160 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
161 | { | |
162 | struct dev_context *devc; | |
163 | ||
164 | (void)cg; | |
165 | ||
166 | devc = sdi->priv; | |
167 | ||
168 | return sr_sw_limits_config_set(&devc->sw_limits, key, data); | |
169 | } | |
170 | ||
171 | static int config_list(uint32_t key, GVariant **data, | |
172 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
173 | { | |
174 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
175 | } | |
176 | ||
177 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
178 | { | |
179 | struct dev_context *devc; | |
180 | ||
181 | devc = sdi->priv; | |
182 | ||
183 | sr_sw_limits_acquisition_start(&devc->sw_limits); | |
184 | ||
185 | std_session_send_df_header(sdi); | |
186 | ||
187 | sr_session_source_add(sdi->session, -1, 0, 10, | |
188 | brymen_bm86x_receive_data, (void *)sdi); | |
189 | ||
190 | return SR_OK; | |
191 | } | |
192 | ||
193 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
194 | { | |
195 | std_session_send_df_end(sdi); | |
196 | ||
197 | sr_session_source_remove(sdi->session, -1); | |
198 | ||
199 | return SR_OK; | |
200 | } | |
201 | ||
202 | static struct sr_dev_driver brymen_bm86x_driver_info = { | |
203 | .name = "brymen-bm86x", | |
204 | .longname = "Brymen BM86X", | |
205 | .api_version = 1, | |
206 | .init = std_init, | |
207 | .cleanup = std_cleanup, | |
208 | .scan = scan, | |
209 | .dev_list = std_dev_list, | |
210 | .dev_clear = std_dev_clear, | |
211 | .config_get = config_get, | |
212 | .config_set = config_set, | |
213 | .config_list = config_list, | |
214 | .dev_open = dev_open, | |
215 | .dev_close = dev_close, | |
216 | .dev_acquisition_start = dev_acquisition_start, | |
217 | .dev_acquisition_stop = dev_acquisition_stop, | |
218 | .context = NULL, | |
219 | }; | |
220 | SR_REGISTER_DEV_DRIVER(brymen_bm86x_driver_info); |