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;
47 drvc->instances = NULL;
50 for (l = options; l; l = l->next) {
54 conn = g_variant_get_string(src->data, NULL);
60 if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
61 g_slist_free_full(usb_devices, g_free);
65 for (l = usb_devices; l; l = l->next) {
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));
75 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
76 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P2");
78 sdi->inst_type = SR_INST_USB;
81 sr_sw_limits_init(&devc->sw_limits);
83 drvc->instances = g_slist_append(drvc->instances, sdi);
84 devices = g_slist_append(devices, sdi);
90 static int dev_open(struct sr_dev_inst *sdi)
92 struct sr_dev_driver *di = sdi->driver;
93 struct drv_context *drvc = di->context;
94 struct sr_usb_dev_inst *usb;
95 struct dev_context *devc;
101 if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
102 sdi->status = SR_ST_ACTIVE;
106 /* Detach kernel drivers which grabbed this device (if any). */
107 if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
108 ret = libusb_detach_kernel_driver(usb->devhdl, 0);
110 sr_err("Failed to detach kernel driver: %s.",
111 libusb_error_name(ret));
114 devc->detached_kernel_driver = 1;
115 sr_dbg("Successfully detached kernel driver.");
117 sr_dbg("No need to detach a kernel driver.");
120 /* Claim interface 0. */
121 if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) {
122 sr_err("Failed to claim interface 0: %s.",
123 libusb_error_name(ret));
126 sr_dbg("Successfully claimed interface 0.");
131 static int dev_close(struct sr_dev_inst *sdi)
133 struct sr_usb_dev_inst *usb;
134 struct dev_context *devc;
137 if (sdi->status != SR_ST_ACTIVE)
138 return SR_ERR_DEV_CLOSED;
143 if ((ret = libusb_release_interface(usb->devhdl, 0)))
144 sr_err("Failed to release interface 0: %s.\n", libusb_error_name(ret));
146 sr_dbg("Successfully released interface 0.\n");
148 if (!ret && devc->detached_kernel_driver) {
149 if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0))) {
150 sr_err("Failed to attach kernel driver: %s.\n",
151 libusb_error_name(ret));
153 devc->detached_kernel_driver = 0;
154 sr_dbg("Successfully attached kernel driver.\n");
158 libusb_close(usb->devhdl);
160 sdi->status = SR_ST_INACTIVE;
165 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
166 const struct sr_channel_group *cg)
168 struct dev_context *devc = sdi->priv;
172 return sr_sw_limits_config_get(&devc->sw_limits, key, data);
175 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
176 const struct sr_channel_group *cg)
178 struct dev_context *devc;
182 if (sdi->status != SR_ST_ACTIVE)
183 return SR_ERR_DEV_CLOSED;
187 return sr_sw_limits_config_set(&devc->sw_limits, key, data);
190 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
191 const struct sr_channel_group *cg)
197 case SR_CONF_SCAN_OPTIONS:
198 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
199 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
201 case SR_CONF_DEVICE_OPTIONS:
202 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
203 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
212 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
214 struct dev_context *devc;
216 if (sdi->status != SR_ST_ACTIVE)
217 return SR_ERR_DEV_CLOSED;
221 sr_sw_limits_acquisition_start(&devc->sw_limits);
223 std_session_send_df_header(sdi, LOG_PREFIX);
225 sr_session_source_add(sdi->session, -1, 0, 10,
226 brymen_bm86x_receive_data, (void *)sdi);
231 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
233 if (sdi->status != SR_ST_ACTIVE)
234 return SR_ERR_DEV_CLOSED;
236 std_session_send_df_end(sdi, LOG_PREFIX);
238 sr_session_source_remove(sdi->session, -1);
243 static struct sr_dev_driver brymen_bm86x_driver_info = {
244 .name = "brymen-bm86x",
245 .longname = "Brymen BM86X",
248 .cleanup = std_cleanup,
250 .dev_list = std_dev_list,
252 .config_get = config_get,
253 .config_set = config_set,
254 .config_list = config_list,
255 .dev_open = dev_open,
256 .dev_close = dev_close,
257 .dev_acquisition_start = dev_acquisition_start,
258 .dev_acquisition_stop = dev_acquisition_stop,
261 SR_REGISTER_DEV_DRIVER(brymen_bm86x_driver_info);