2 * This file is part of the libsigrok project.
4 * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com>
5 * Copyright (C) 2012 Renato Caldas <rmsc@fe.up.pt>
6 * Copyright (C) 2013 Lior Elazary <lelazary@yahoo.com>
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 static const int32_t hwcaps[] = {
26 SR_CONF_LOGIC_ANALYZER,
28 SR_CONF_TRIGGER_SLOPE,
29 SR_CONF_HORIZ_TRIGGERPOS,
30 // SR_CONF_CAPTURE_RATIO,
31 SR_CONF_LIMIT_SAMPLES,
36 * Probes are numbered 0 to 7.
38 * See also: http://www.linkinstruments.com/images/mso19_1113.gif
40 SR_PRIV const char *mso19_probe_names[NUM_PROBES + 1] = {
41 /* Note: DSO needs to be first. */
42 "DSO", "0", "1", "2", "3", "4", "5", "6", "7", NULL,
45 static const uint64_t samplerates[] = {
51 SR_PRIV struct sr_dev_driver link_mso19_driver_info;
52 static struct sr_dev_driver *di = &link_mso19_driver_info;
54 static int init(struct sr_context *sr_ctx)
56 return std_init(sr_ctx, di, LOG_PREFIX);
59 static GSList *scan(GSList *options)
62 GSList *devices = NULL;
63 const char *conn = NULL;
64 const char *serialcomm = NULL;
66 struct sr_config *src;
70 for (l = options; l; l = l->next) {
74 conn = g_variant_get_string(src->data, NULL);
76 case SR_CONF_SERIALCOMM:
77 serialcomm = g_variant_get_string(src->data, NULL);
83 if (serialcomm == NULL)
84 serialcomm = SERIALCOMM;
88 sr_err("Failed to initialize udev.");
91 struct udev_enumerate *enumerate = udev_enumerate_new(udev);
92 udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
93 udev_enumerate_scan_devices(enumerate);
94 struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
95 struct udev_list_entry *dev_list_entry;
96 for (dev_list_entry = devs;
97 dev_list_entry != NULL;
98 dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
99 const char *syspath = udev_list_entry_get_name(dev_list_entry);
100 struct udev_device *dev =
101 udev_device_new_from_syspath(udev, syspath);
102 const char *sysname = udev_device_get_sysname(dev);
103 struct udev_device *parent =
104 udev_device_get_parent_with_subsystem_devtype(dev, "usb",
108 sr_err("Unable to find parent usb device for %s",
113 const char *idVendor =
114 udev_device_get_sysattr_value(parent, "idVendor");
115 const char *idProduct =
116 udev_device_get_sysattr_value(parent, "idProduct");
117 if (strcmp(USB_VENDOR, idVendor)
118 || strcmp(USB_PRODUCT, idProduct))
121 const char *iSerial =
122 udev_device_get_sysattr_value(parent, "serial");
123 const char *iProduct =
124 udev_device_get_sysattr_value(parent, "product");
127 snprintf(path, sizeof(path), "/dev/%s", sysname);
130 size_t s = strcspn(iProduct, " ");
132 char manufacturer[32];
133 if (s > sizeof(product) ||
134 strlen(iProduct) - s > sizeof(manufacturer)) {
135 sr_err("Could not parse iProduct: %s.", iProduct);
138 strncpy(product, iProduct, s);
140 strcpy(manufacturer, iProduct + s + 1);
142 //Create the device context and set its params
143 struct dev_context *devc;
144 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
145 sr_err("Device context malloc failed.");
149 if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
150 sr_err("Invalid iSerial: %s.", iSerial);
156 sprintf(hwrev, "r%d", devc->hwrev);
158 devc->protocol_trigger.spimode = 0;
159 for (i = 0; i < 4; i++) {
160 devc->protocol_trigger.word[i] = 0;
161 devc->protocol_trigger.mask[i] = 0xff;
164 if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) {
169 struct sr_dev_inst *sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
170 manufacturer, product, hwrev);
173 sr_err("Unable to create device instance for %s",
175 sr_dev_inst_free(sdi);
183 for (i = 0; i < NUM_PROBES; i++) {
184 struct sr_probe *probe;
185 ptype = (i == 0) ? SR_PROBE_ANALOG : SR_PROBE_LOGIC;
186 if (!(probe = sr_probe_new(i, ptype, TRUE,
187 mso19_probe_names[i])))
189 sdi->probes = g_slist_append(sdi->probes, probe);
193 struct drv_context *drvc = di->priv;
194 drvc->instances = g_slist_append(drvc->instances, sdi);
195 devices = g_slist_append(devices, sdi);
201 static GSList *dev_list(void)
203 return ((struct drv_context *)(di->priv))->instances;
206 static int dev_open(struct sr_dev_inst *sdi)
209 struct dev_context *devc;
213 if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
216 sdi->status = SR_ST_ACTIVE;
218 /* FIXME: discard serial buffer */
219 mso_check_trigger(devc->serial, &devc->trigger_state);
220 sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
222 ret = mso_reset_adc(sdi);
226 mso_check_trigger(devc->serial, &devc->trigger_state);
227 sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
229 // ret = mso_reset_fsm(sdi);
237 static int dev_close(struct sr_dev_inst *sdi)
239 struct dev_context *devc;
243 if (devc->serial && devc->serial->fd != -1) {
244 serial_close(devc->serial);
245 sdi->status = SR_ST_INACTIVE;
251 static int cleanup(void)
254 struct sr_dev_inst *sdi;
255 struct drv_context *drvc;
256 struct dev_context *devc;
259 if (!(drvc = di->priv))
262 /* Properly close and free all devices. */
263 for (l = drvc->instances; l; l = l->next) {
264 if (!(sdi = l->data)) {
265 /* Log error, but continue cleaning up the rest. */
266 sr_err("%s: sdi was NULL, continuing", __func__);
270 if (!(devc = sdi->priv)) {
271 /* Log error, but continue cleaning up the rest. */
272 sr_err("%s: sdi->priv was NULL, continuing", __func__);
277 sr_serial_dev_inst_free(devc->serial);
278 sr_dev_inst_free(sdi);
280 g_slist_free(drvc->instances);
281 drvc->instances = NULL;
286 static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
288 struct dev_context *devc;
291 case SR_CONF_SAMPLERATE:
294 *data = g_variant_new_uint64(devc->cur_rate);
305 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
308 struct dev_context *devc;
309 uint64_t num_samples, slope;
315 if (sdi->status != SR_ST_ACTIVE)
316 return SR_ERR_DEV_CLOSED;
319 case SR_CONF_SAMPLERATE:
321 return mso_configure_rate(sdi, g_variant_get_uint64(data));
324 case SR_CONF_LIMIT_SAMPLES:
325 num_samples = g_variant_get_uint64(data);
326 if (num_samples != 1024) {
327 sr_err("Only 1024 samples are supported.");
330 devc->limit_samples = num_samples;
331 sr_dbg("setting limit_samples to %i\n",
336 case SR_CONF_CAPTURE_RATIO:
339 case SR_CONF_TRIGGER_SLOPE:
340 slope = g_variant_get_uint64(data);
341 if (slope != SLOPE_NEGATIVE && slope != SLOPE_POSITIVE) {
342 sr_err("Invalid trigger slope");
345 devc->trigger_slope = slope;
349 case SR_CONF_HORIZ_TRIGGERPOS:
350 pos = g_variant_get_double(data);
351 if (pos < 0 || pos > 255) {
352 sr_err("Trigger position (%f) should be between 0 and 255.", pos);
355 trigger_pos = (int)pos;
356 devc->trigger_holdoff[0] = trigger_pos & 0xff;
371 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
379 case SR_CONF_DEVICE_OPTIONS:
380 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
381 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
383 case SR_CONF_SAMPLERATE:
384 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
385 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
386 ARRAY_SIZE(samplerates), sizeof(uint64_t));
387 g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
388 *data = g_variant_builder_end(&gvb);
390 case SR_CONF_TRIGGER_TYPE:
391 *data = g_variant_new_string(TRIGGER_TYPE);
400 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
402 struct dev_context *devc;
405 if (sdi->status != SR_ST_ACTIVE)
406 return SR_ERR_DEV_CLOSED;
410 if (mso_configure_probes(sdi) != SR_OK) {
411 sr_err("Failed to configure probes.");
415 /* FIXME: No need to do full reconfigure every time */
416 // ret = mso_reset_fsm(sdi);
420 /* FIXME: ACDC Mode */
421 devc->ctlbase1 &= 0x7f;
422 // devc->ctlbase1 |= devc->acdcmode;
424 ret = mso_configure_rate(sdi, devc->cur_rate);
429 ret = mso_dac_out(sdi, devc->dac_offset);
433 ret = mso_configure_threshold_level(sdi);
437 ret = mso_configure_trigger(sdi);
441 /* END of config hardware part */
446 /* Start acquisition on the device. */
447 mso_check_trigger(devc->serial, &devc->trigger_state);
448 ret = mso_check_trigger(devc->serial, NULL);
452 /* Reset trigger state. */
453 devc->trigger_state = 0x00;
455 /* Send header packet to the session bus. */
456 std_session_send_df_header(cb_data, LOG_PREFIX);
458 /* Our first probe is analog, the other 8 are of type 'logic'. */
461 sr_source_add(devc->serial->fd, G_IO_IN, -1, mso_receive_data, cb_data);
466 /* This stops acquisition on ALL devices, ignoring dev_index. */
467 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
471 stop_acquisition(sdi);
476 SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
477 .name = "link-mso19",
478 .longname = "Link Instruments MSO-19",
483 .dev_list = dev_list,
484 .dev_clear = cleanup,
485 .config_get = config_get,
486 .config_set = config_set,
487 .config_list = config_list,
488 .dev_open = dev_open,
489 .dev_close = dev_close,
490 .dev_acquisition_start = dev_acquisition_start,
491 .dev_acquisition_stop = dev_acquisition_stop,