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 SR_PRIV struct sr_dev_driver brymen_bm86x_driver_info;
38 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
40 return std_init(sr_ctx, di, LOG_PREFIX);
43 static GSList *scan(struct sr_dev_driver *di, GSList *options)
45 GSList *usb_devices, *devices, *l;
46 struct drv_context *drvc;
47 struct dev_context *devc;
48 struct sr_dev_inst *sdi;
49 struct sr_usb_dev_inst *usb;
50 struct sr_config *src;
54 drvc->instances = NULL;
57 for (l = options; l; l = l->next) {
61 conn = g_variant_get_string(src->data, NULL);
67 if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
68 g_slist_free_full(usb_devices, g_free);
72 for (l = usb_devices; l; l = l->next) {
75 sdi = g_malloc0(sizeof(struct sr_dev_inst));
76 sdi->status = SR_ST_INACTIVE;
77 sdi->vendor = g_strdup("Brymen");
78 sdi->model = g_strdup("BM869");
79 devc = g_malloc0(sizeof(struct dev_context));
82 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
83 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P2");
85 sdi->inst_type = SR_INST_USB;
88 sr_sw_limits_init(&devc->sw_limits);
90 drvc->instances = g_slist_append(drvc->instances, sdi);
91 devices = g_slist_append(devices, sdi);
97 static int dev_open(struct sr_dev_inst *sdi)
99 struct sr_dev_driver *di = sdi->driver;
100 struct drv_context *drvc = di->context;
101 struct sr_usb_dev_inst *usb;
102 struct dev_context *devc;
108 if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
109 sdi->status = SR_ST_ACTIVE;
113 /* Detach kernel drivers which grabbed this device (if any). */
114 if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
115 ret = libusb_detach_kernel_driver(usb->devhdl, 0);
117 sr_err("Failed to detach kernel driver: %s.",
118 libusb_error_name(ret));
121 devc->detached_kernel_driver = 1;
122 sr_dbg("Successfully detached kernel driver.");
124 sr_dbg("No need to detach a kernel driver.");
127 /* Claim interface 0. */
128 if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) {
129 sr_err("Failed to claim interface 0: %s.",
130 libusb_error_name(ret));
133 sr_dbg("Successfully claimed interface 0.");
138 static int dev_close(struct sr_dev_inst *sdi)
140 struct sr_usb_dev_inst *usb;
141 struct dev_context *devc;
144 if (sdi->status != SR_ST_ACTIVE)
145 return SR_ERR_DEV_CLOSED;
150 if ((ret = libusb_release_interface(usb->devhdl, 0)))
151 sr_err("Failed to release interface 0: %s.\n", libusb_error_name(ret));
153 sr_dbg("Successfully released interface 0.\n");
155 if (!ret && devc->detached_kernel_driver) {
156 if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0))) {
157 sr_err("Failed to attach kernel driver: %s.\n",
158 libusb_error_name(ret));
160 devc->detached_kernel_driver = 0;
161 sr_dbg("Successfully attached kernel driver.\n");
165 libusb_close(usb->devhdl);
167 sdi->status = SR_ST_INACTIVE;
172 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
173 const struct sr_channel_group *cg)
175 struct dev_context *devc = sdi->priv;
179 return sr_sw_limits_config_get(&devc->sw_limits, key, data);
182 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
183 const struct sr_channel_group *cg)
185 struct dev_context *devc;
189 if (sdi->status != SR_ST_ACTIVE)
190 return SR_ERR_DEV_CLOSED;
192 if (!(devc = sdi->priv)) {
193 sr_err("sdi->priv was NULL.");
197 return sr_sw_limits_config_set(&devc->sw_limits, key, data);
200 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
201 const struct sr_channel_group *cg)
207 case SR_CONF_SCAN_OPTIONS:
208 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
209 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
211 case SR_CONF_DEVICE_OPTIONS:
212 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
213 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
222 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
224 struct dev_context *devc;
226 if (sdi->status != SR_ST_ACTIVE)
227 return SR_ERR_DEV_CLOSED;
231 sr_sw_limits_acquisition_start(&devc->sw_limits);
233 std_session_send_df_header(sdi, LOG_PREFIX);
235 sr_session_source_add(sdi->session, -1, 0, 10,
236 brymen_bm86x_receive_data, (void *)sdi);
241 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
243 if (sdi->status != SR_ST_ACTIVE)
244 return SR_ERR_DEV_CLOSED;
246 std_session_send_df_end(sdi, LOG_PREFIX);
248 sr_session_source_remove(sdi->session, -1);
253 SR_PRIV struct sr_dev_driver brymen_bm86x_driver_info = {
254 .name = "brymen-bm86x",
255 .longname = "Brymen BM86X",
258 .cleanup = std_cleanup,
260 .dev_list = std_dev_list,
262 .config_get = config_get,
263 .config_set = config_set,
264 .config_list = config_list,
265 .dev_open = dev_open,
266 .dev_close = dev_close,
267 .dev_acquisition_start = dev_acquisition_start,
268 .dev_acquisition_stop = dev_acquisition_stop,