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8d9c8554 AJ |
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 "protocol.h" | |
21 | ||
ecaa89af AJ |
22 | #define BRYMEN_BC86X "0820.0001" |
23 | ||
24 | static const int32_t hwopts[] = { | |
25 | SR_CONF_CONN, | |
26 | }; | |
27 | ||
28 | static const int32_t hwcaps[] = { | |
29 | SR_CONF_MULTIMETER, | |
30 | SR_CONF_LIMIT_SAMPLES, | |
31 | SR_CONF_LIMIT_MSEC, | |
32 | SR_CONF_CONTINUOUS, | |
33 | }; | |
34 | ||
8d9c8554 AJ |
35 | SR_PRIV struct sr_dev_driver brymen_bm86x_driver_info; |
36 | static struct sr_dev_driver *di = &brymen_bm86x_driver_info; | |
37 | ||
38 | static int init(struct sr_context *sr_ctx) | |
39 | { | |
40 | return std_init(sr_ctx, di, LOG_PREFIX); | |
41 | } | |
42 | ||
43 | static GSList *scan(GSList *options) | |
44 | { | |
ecaa89af | 45 | GSList *usb_devices, *devices, *l; |
8d9c8554 | 46 | struct drv_context *drvc; |
ecaa89af AJ |
47 | struct dev_context *devc; |
48 | struct sr_dev_inst *sdi; | |
49 | struct sr_usb_dev_inst *usb; | |
50 | struct sr_config *src; | |
ba7dd8bb | 51 | struct sr_channel *ch; |
ecaa89af | 52 | const char *conn; |
8d9c8554 | 53 | |
8d9c8554 AJ |
54 | drvc = di->priv; |
55 | drvc->instances = NULL; | |
56 | ||
ecaa89af AJ |
57 | conn = BRYMEN_BC86X; |
58 | for (l = options; l; l = l->next) { | |
59 | src = l->data; | |
60 | switch (src->key) { | |
61 | case SR_CONF_CONN: | |
62 | conn = g_variant_get_string(src->data, NULL); | |
63 | break; | |
64 | } | |
65 | } | |
66 | ||
67 | devices = NULL; | |
68 | if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) { | |
69 | g_slist_free_full(usb_devices, g_free); | |
70 | return NULL; | |
71 | } | |
72 | ||
73 | for (l = usb_devices; l; l = l->next) { | |
74 | usb = l->data; | |
75 | ||
76 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, | |
77 | "Brymen", "BM869", NULL))) { | |
78 | sr_err("sr_dev_inst_new returned NULL."); | |
79 | return NULL; | |
80 | } | |
81 | ||
82 | if (!(devc = g_try_malloc0(sizeof(*devc)))) { | |
83 | sr_err("Device context malloc failed."); | |
84 | return NULL; | |
85 | } | |
86 | ||
87 | sdi->priv = devc; | |
88 | sdi->driver = di; | |
3f239f08 | 89 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1"))) |
ecaa89af | 90 | return NULL; |
ba7dd8bb | 91 | sdi->channels = g_slist_append(sdi->channels, ch); |
3f239f08 | 92 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P2"))) |
ecaa89af | 93 | return NULL; |
ba7dd8bb | 94 | sdi->channels = g_slist_append(sdi->channels, ch); |
ecaa89af AJ |
95 | |
96 | sdi->inst_type = SR_INST_USB; | |
97 | sdi->conn = usb; | |
98 | ||
99 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
100 | devices = g_slist_append(devices, sdi); | |
101 | } | |
8d9c8554 AJ |
102 | |
103 | return devices; | |
104 | } | |
105 | ||
106 | static GSList *dev_list(void) | |
107 | { | |
108 | return ((struct drv_context *)(di->priv))->instances; | |
109 | } | |
110 | ||
8d9c8554 AJ |
111 | static int dev_open(struct sr_dev_inst *sdi) |
112 | { | |
ecaa89af AJ |
113 | struct drv_context *drvc = di->priv; |
114 | struct sr_usb_dev_inst *usb; | |
115 | struct dev_context *devc; | |
116 | int ret; | |
8d9c8554 | 117 | |
ecaa89af AJ |
118 | usb = sdi->conn; |
119 | devc = sdi->priv; | |
120 | ||
121 | if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK) | |
122 | sdi->status = SR_ST_ACTIVE; | |
123 | ||
124 | /* Detach kernel drivers which grabbed this device (if any). */ | |
125 | if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) { | |
126 | ret = libusb_detach_kernel_driver(usb->devhdl, 0); | |
127 | if (ret < 0) { | |
128 | sr_err("Failed to detach kernel driver: %s.", | |
129 | libusb_error_name(ret)); | |
130 | return SR_ERR; | |
131 | } | |
132 | devc->detached_kernel_driver = 1; | |
133 | sr_dbg("Successfully detached kernel driver."); | |
134 | } else { | |
135 | sr_dbg("No need to detach a kernel driver."); | |
136 | } | |
8d9c8554 | 137 | |
ecaa89af AJ |
138 | /* Claim interface 0. */ |
139 | if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) { | |
140 | sr_err("Failed to claim interface 0: %s.", | |
141 | libusb_error_name(ret)); | |
142 | return SR_ERR; | |
143 | } | |
144 | sr_dbg("Successfully claimed interface 0."); | |
8d9c8554 | 145 | |
ecaa89af | 146 | return ret; |
8d9c8554 AJ |
147 | } |
148 | ||
149 | static int dev_close(struct sr_dev_inst *sdi) | |
150 | { | |
ecaa89af AJ |
151 | struct sr_usb_dev_inst *usb; |
152 | struct dev_context *devc; | |
153 | int ret; | |
154 | ||
155 | usb = sdi->conn; | |
156 | devc = sdi->priv; | |
157 | ||
158 | if ((ret = libusb_release_interface(usb->devhdl, 0))) | |
159 | sr_err("Failed to release interface 0: %s.\n", libusb_error_name(ret)); | |
160 | else | |
161 | sr_dbg("Successfully released interface 0.\n"); | |
162 | ||
163 | if (!ret && devc->detached_kernel_driver) { | |
164 | if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0))) { | |
165 | sr_err("Failed to attach kernel driver: %s.\n", | |
166 | libusb_error_name(ret)); | |
167 | } else { | |
168 | devc->detached_kernel_driver = 0; | |
169 | sr_dbg("Successfully attached kernel driver.\n"); | |
170 | } | |
171 | } | |
8d9c8554 | 172 | |
ecaa89af | 173 | libusb_close(usb->devhdl); |
8d9c8554 AJ |
174 | |
175 | sdi->status = SR_ST_INACTIVE; | |
176 | ||
ecaa89af | 177 | return ret; |
8d9c8554 AJ |
178 | } |
179 | ||
180 | static int cleanup(void) | |
181 | { | |
0ab70260 | 182 | return std_dev_clear(di, NULL); |
8d9c8554 AJ |
183 | } |
184 | ||
185 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
53b4680f | 186 | const struct sr_channel_group *cg) |
8d9c8554 | 187 | { |
ecaa89af | 188 | struct dev_context *devc = sdi->priv; |
8d9c8554 | 189 | |
53b4680f | 190 | (void)cg; |
8d9c8554 | 191 | |
8d9c8554 | 192 | switch (key) { |
ecaa89af AJ |
193 | case SR_CONF_LIMIT_SAMPLES: |
194 | *data = g_variant_new_uint64(devc->limit_samples); | |
195 | break; | |
196 | case SR_CONF_LIMIT_MSEC: | |
197 | *data = g_variant_new_uint64(devc->limit_msec); | |
198 | break; | |
8d9c8554 AJ |
199 | default: |
200 | return SR_ERR_NA; | |
201 | } | |
202 | ||
ecaa89af | 203 | return SR_OK; |
8d9c8554 AJ |
204 | } |
205 | ||
206 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, | |
53b4680f | 207 | const struct sr_channel_group *cg) |
8d9c8554 | 208 | { |
ecaa89af | 209 | struct dev_context *devc; |
8d9c8554 | 210 | |
53b4680f | 211 | (void)cg; |
8d9c8554 AJ |
212 | |
213 | if (sdi->status != SR_ST_ACTIVE) | |
214 | return SR_ERR_DEV_CLOSED; | |
215 | ||
ecaa89af AJ |
216 | if (!(devc = sdi->priv)) { |
217 | sr_err("sdi->priv was NULL."); | |
218 | return SR_ERR_BUG; | |
219 | } | |
220 | ||
8d9c8554 | 221 | switch (key) { |
ecaa89af AJ |
222 | case SR_CONF_LIMIT_SAMPLES: |
223 | devc->limit_samples = g_variant_get_uint64(data); | |
224 | sr_dbg("Setting sample limit to %" PRIu64 ".", devc->limit_samples); | |
225 | break; | |
226 | case SR_CONF_LIMIT_MSEC: | |
227 | devc->limit_msec = g_variant_get_uint64(data); | |
228 | sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec); | |
229 | break; | |
8d9c8554 | 230 | default: |
ecaa89af | 231 | return SR_ERR_NA; |
8d9c8554 AJ |
232 | } |
233 | ||
ecaa89af | 234 | return SR_OK; |
8d9c8554 AJ |
235 | } |
236 | ||
237 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
53b4680f | 238 | const struct sr_channel_group *cg) |
8d9c8554 | 239 | { |
8d9c8554 | 240 | (void)sdi; |
53b4680f | 241 | (void)cg; |
8d9c8554 | 242 | |
8d9c8554 | 243 | switch (key) { |
ecaa89af AJ |
244 | case SR_CONF_SCAN_OPTIONS: |
245 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
246 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
247 | break; | |
248 | case SR_CONF_DEVICE_OPTIONS: | |
249 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
250 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
251 | break; | |
8d9c8554 AJ |
252 | default: |
253 | return SR_ERR_NA; | |
254 | } | |
255 | ||
ecaa89af | 256 | return SR_OK; |
8d9c8554 AJ |
257 | } |
258 | ||
259 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
260 | void *cb_data) | |
261 | { | |
ecaa89af | 262 | struct dev_context *devc; |
8d9c8554 | 263 | |
102f1239 BV |
264 | (void)cb_data; |
265 | ||
8d9c8554 AJ |
266 | if (sdi->status != SR_ST_ACTIVE) |
267 | return SR_ERR_DEV_CLOSED; | |
268 | ||
ecaa89af | 269 | devc = sdi->priv; |
ecaa89af AJ |
270 | devc->start_time = g_get_monotonic_time(); |
271 | ||
272 | /* Send header packet to the session bus. */ | |
102f1239 | 273 | std_session_send_df_header(sdi, LOG_PREFIX); |
ecaa89af | 274 | |
102f1239 BV |
275 | sr_session_source_add(sdi->session, 0, 0, 10, |
276 | brymen_bm86x_receive_data, (void *)sdi); | |
8d9c8554 AJ |
277 | |
278 | return SR_OK; | |
279 | } | |
280 | ||
281 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
282 | { | |
ecaa89af | 283 | struct sr_datafeed_packet packet; |
8d9c8554 | 284 | |
102f1239 BV |
285 | (void)cb_data; |
286 | ||
8d9c8554 AJ |
287 | if (sdi->status != SR_ST_ACTIVE) |
288 | return SR_ERR_DEV_CLOSED; | |
289 | ||
ecaa89af AJ |
290 | /* Send end packet to the session bus. */ |
291 | packet.type = SR_DF_END; | |
102f1239 | 292 | sr_session_send(sdi, &packet); |
ecaa89af | 293 | |
102f1239 | 294 | sr_session_source_remove(sdi->session, 0); |
8d9c8554 AJ |
295 | |
296 | return SR_OK; | |
297 | } | |
298 | ||
299 | SR_PRIV struct sr_dev_driver brymen_bm86x_driver_info = { | |
300 | .name = "brymen-bm86x", | |
301 | .longname = "Brymen BM86X", | |
302 | .api_version = 1, | |
303 | .init = init, | |
304 | .cleanup = cleanup, | |
305 | .scan = scan, | |
306 | .dev_list = dev_list, | |
0ab70260 | 307 | .dev_clear = NULL, |
8d9c8554 AJ |
308 | .config_get = config_get, |
309 | .config_set = config_set, | |
310 | .config_list = config_list, | |
311 | .dev_open = dev_open, | |
312 | .dev_close = dev_close, | |
313 | .dev_acquisition_start = dev_acquisition_start, | |
314 | .dev_acquisition_stop = dev_acquisition_stop, | |
315 | .priv = NULL, | |
316 | }; |