2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
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.
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.
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/>.
23 #define BRYMEN_BC86X "0820.0001"
25 static const uint32_t scanopts[] = {
29 static const uint32_t devopts[] = {
32 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
33 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
36 static GSList *scan(struct sr_dev_driver *di, GSList *options)
38 GSList *usb_devices, *devices, *l;
39 struct drv_context *drvc;
40 struct dev_context *devc;
41 struct sr_dev_inst *sdi;
42 struct sr_usb_dev_inst *usb;
43 struct sr_config *src;
49 for (l = options; l; l = l->next) {
53 conn = g_variant_get_string(src->data, NULL);
59 if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
60 g_slist_free_full(usb_devices, g_free);
64 for (l = usb_devices; l; l = l->next) {
67 sdi = g_malloc0(sizeof(struct sr_dev_inst));
68 sdi->status = SR_ST_INACTIVE;
69 sdi->vendor = g_strdup("Brymen");
70 sdi->model = g_strdup("BM869");
71 devc = g_malloc0(sizeof(struct dev_context));
73 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
74 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P2");
76 sdi->inst_type = SR_INST_USB;
79 sr_sw_limits_init(&devc->sw_limits);
81 devices = g_slist_append(devices, sdi);
84 return std_scan_complete(di, devices);
87 static int dev_open(struct sr_dev_inst *sdi)
89 struct sr_dev_driver *di = sdi->driver;
90 struct drv_context *drvc = di->context;
91 struct sr_usb_dev_inst *usb;
92 struct dev_context *devc;
98 if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
99 sdi->status = SR_ST_ACTIVE;
103 /* Detach kernel drivers which grabbed this device (if any). */
104 if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
105 ret = libusb_detach_kernel_driver(usb->devhdl, 0);
107 sr_err("Failed to detach kernel driver: %s.",
108 libusb_error_name(ret));
111 devc->detached_kernel_driver = 1;
112 sr_dbg("Successfully detached kernel driver.");
114 sr_dbg("No need to detach a kernel driver.");
117 /* Claim interface 0. */
118 if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) {
119 sr_err("Failed to claim interface 0: %s.",
120 libusb_error_name(ret));
123 sr_dbg("Successfully claimed interface 0.");
128 static int dev_close(struct sr_dev_inst *sdi)
130 struct sr_usb_dev_inst *usb;
131 struct dev_context *devc;
134 if (sdi->status != SR_ST_ACTIVE)
135 return SR_ERR_DEV_CLOSED;
140 if ((ret = libusb_release_interface(usb->devhdl, 0)))
141 sr_err("Failed to release interface 0: %s.\n", libusb_error_name(ret));
143 sr_dbg("Successfully released interface 0.\n");
145 if (!ret && devc->detached_kernel_driver) {
146 if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0))) {
147 sr_err("Failed to attach kernel driver: %s.\n",
148 libusb_error_name(ret));
150 devc->detached_kernel_driver = 0;
151 sr_dbg("Successfully attached kernel driver.\n");
155 libusb_close(usb->devhdl);
157 sdi->status = SR_ST_INACTIVE;
162 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
163 const struct sr_channel_group *cg)
165 struct dev_context *devc = sdi->priv;
169 return sr_sw_limits_config_get(&devc->sw_limits, key, data);
172 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
173 const struct sr_channel_group *cg)
175 struct dev_context *devc;
179 if (sdi->status != SR_ST_ACTIVE)
180 return SR_ERR_DEV_CLOSED;
184 return sr_sw_limits_config_set(&devc->sw_limits, key, data);
187 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
188 const struct sr_channel_group *cg)
194 case SR_CONF_SCAN_OPTIONS:
195 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
196 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
198 case SR_CONF_DEVICE_OPTIONS:
199 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
200 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
209 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
211 struct dev_context *devc;
213 if (sdi->status != SR_ST_ACTIVE)
214 return SR_ERR_DEV_CLOSED;
218 sr_sw_limits_acquisition_start(&devc->sw_limits);
220 std_session_send_df_header(sdi);
222 sr_session_source_add(sdi->session, -1, 0, 10,
223 brymen_bm86x_receive_data, (void *)sdi);
228 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
230 if (sdi->status != SR_ST_ACTIVE)
231 return SR_ERR_DEV_CLOSED;
233 std_session_send_df_end(sdi);
235 sr_session_source_remove(sdi->session, -1);
240 static struct sr_dev_driver brymen_bm86x_driver_info = {
241 .name = "brymen-bm86x",
242 .longname = "Brymen BM86X",
245 .cleanup = std_cleanup,
247 .dev_list = std_dev_list,
249 .config_get = config_get,
250 .config_set = config_set,
251 .config_list = config_list,
252 .dev_open = dev_open,
253 .dev_close = dev_close,
254 .dev_acquisition_start = dev_acquisition_start,
255 .dev_acquisition_stop = dev_acquisition_stop,
258 SR_REGISTER_DEV_DRIVER(brymen_bm86x_driver_info);