2 * This file is part of the libsigrok project.
4 * Copyright (C) 2015 Christer Ekholm <christerekholm@gmail.com>
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/>.
24 /* Max time in ms before we want to check on USB events */
27 #define RANGE(ch) (((float)vdivs[devc->voltage[ch]][0] / vdivs[devc->voltage[ch]][1]) * VDIV_MULTIPLIER)
29 static const uint32_t scanopts[] = {
33 static const uint32_t drvopts[] = {
37 static const uint32_t devopts[] = {
38 SR_CONF_CONN | SR_CONF_GET,
39 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
40 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
41 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
42 SR_CONF_NUM_VDIV | SR_CONF_GET,
45 static const uint32_t devopts_cg[] = {
46 SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
47 SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
50 static const char *channel_names[] = {
54 static const char *dc_coupling[] = {
58 static const char *acdc_coupling[] = {
62 static const struct hantek_6xxx_profile dev_profiles[] = {
64 0x04b4, 0x6022, 0x1d50, 0x608e, 0x0001,
65 "Hantek", "6022BE", "fx2lafw-hantek-6022be.fw",
66 dc_coupling, ARRAY_SIZE(dc_coupling), FALSE,
69 0x8102, 0x8102, 0x1d50, 0x608e, 0x0002,
70 "Sainsmart", "DDS120", "fx2lafw-sainsmart-dds120.fw",
71 acdc_coupling, ARRAY_SIZE(acdc_coupling), TRUE,
74 0x04b4, 0x602a, 0x1d50, 0x608e, 0x0003,
75 "Hantek", "6022BL", "fx2lafw-hantek-6022bl.fw",
76 dc_coupling, ARRAY_SIZE(dc_coupling), FALSE,
81 static const uint64_t samplerates[] = {
85 static const uint64_t vdivs[][2] = {
89 static int read_channel(const struct sr_dev_inst *sdi, uint32_t amount);
91 static int dev_acquisition_stop(struct sr_dev_inst *sdi);
93 static struct sr_dev_inst *hantek_6xxx_dev_new(const struct hantek_6xxx_profile *prof)
95 struct sr_dev_inst *sdi;
96 struct sr_channel *ch;
97 struct sr_channel_group *cg;
98 struct dev_context *devc;
101 sdi = g_malloc0(sizeof(struct sr_dev_inst));
102 sdi->status = SR_ST_INITIALIZING;
103 sdi->vendor = g_strdup(prof->vendor);
104 sdi->model = g_strdup(prof->model);
106 for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
107 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]);
108 cg = g_malloc0(sizeof(struct sr_channel_group));
109 cg->name = g_strdup(channel_names[i]);
110 cg->channels = g_slist_append(cg->channels, ch);
111 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
114 devc = g_malloc0(sizeof(struct dev_context));
116 for (i = 0; i < NUM_CHANNELS; i++) {
117 devc->ch_enabled[i] = TRUE;
118 devc->voltage[i] = DEFAULT_VOLTAGE;
119 devc->coupling[i] = DEFAULT_COUPLING;
121 devc->coupling_vals = prof->coupling_vals;
122 devc->coupling_tab_size = prof->coupling_tab_size;
123 devc->has_coupling = prof->has_coupling;
125 devc->sample_buf = NULL;
126 devc->sample_buf_write = 0;
127 devc->sample_buf_size = 0;
129 devc->profile = prof;
130 devc->dev_state = IDLE;
131 devc->samplerate = DEFAULT_SAMPLERATE;
138 static int configure_channels(const struct sr_dev_inst *sdi)
140 struct dev_context *devc;
143 struct sr_channel *ch;
146 g_slist_free(devc->enabled_channels);
147 devc->enabled_channels = NULL;
148 memset(devc->ch_enabled, 0, sizeof(devc->ch_enabled));
150 for (l = sdi->channels, p = 0; l; l = l->next, p++) {
152 if (p < NUM_CHANNELS) {
153 devc->ch_enabled[p] = ch->enabled;
154 devc->enabled_channels = g_slist_append(devc->enabled_channels, ch);
161 static void clear_dev_context(void *priv)
163 struct dev_context *devc;
166 g_slist_free(devc->enabled_channels);
170 static int dev_clear(const struct sr_dev_driver *di)
172 return std_dev_clear(di, clear_dev_context);
175 static GSList *scan(struct sr_dev_driver *di, GSList *options)
177 struct drv_context *drvc;
178 struct dev_context *devc;
179 struct sr_dev_inst *sdi;
180 struct sr_usb_dev_inst *usb;
181 struct sr_config *src;
182 const struct hantek_6xxx_profile *prof;
183 GSList *l, *devices, *conn_devices;
184 struct libusb_device_descriptor des;
185 libusb_device **devlist;
188 char connection_id[64];
195 for (l = options; l; l = l->next) {
197 if (src->key == SR_CONF_CONN) {
198 conn = g_variant_get_string(src->data, NULL);
203 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
207 /* Find all Hantek 60xx devices and upload firmware to all of them. */
208 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
209 for (i = 0; devlist[i]; i++) {
212 for (l = conn_devices; l; l = l->next) {
214 if (usb->bus == libusb_get_bus_number(devlist[i])
215 && usb->address == libusb_get_device_address(devlist[i]))
219 /* This device matched none of the ones that
220 * matched the conn specification. */
224 libusb_get_device_descriptor(devlist[i], &des);
226 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
229 for (j = 0; dev_profiles[j].orig_vid; j++) {
230 if (des.idVendor == dev_profiles[j].orig_vid
231 && des.idProduct == dev_profiles[j].orig_pid) {
232 /* Device matches the pre-firmware profile. */
233 prof = &dev_profiles[j];
234 sr_dbg("Found a %s %s.", prof->vendor, prof->model);
235 sdi = hantek_6xxx_dev_new(prof);
236 sdi->connection_id = g_strdup(connection_id);
237 devices = g_slist_append(devices, sdi);
239 if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
240 USB_CONFIGURATION, prof->firmware) == SR_OK)
241 /* Remember when the firmware on this device was updated. */
242 devc->fw_updated = g_get_monotonic_time();
244 sr_err("Firmware upload failed.");
245 /* Dummy USB address of 0xff will get overwritten later. */
246 sdi->conn = sr_usb_dev_inst_new(
247 libusb_get_bus_number(devlist[i]), 0xff, NULL);
249 } else if (des.idVendor == dev_profiles[j].fw_vid
250 && des.idProduct == dev_profiles[j].fw_pid
251 && des.bcdDevice == dev_profiles[j].fw_prod_ver) {
252 /* Device matches the post-firmware profile. */
253 prof = &dev_profiles[j];
254 sr_dbg("Found a %s %s.", prof->vendor, prof->model);
255 sdi = hantek_6xxx_dev_new(prof);
256 sdi->connection_id = g_strdup(connection_id);
257 sdi->status = SR_ST_INACTIVE;
258 devices = g_slist_append(devices, sdi);
259 sdi->inst_type = SR_INST_USB;
260 sdi->conn = sr_usb_dev_inst_new(
261 libusb_get_bus_number(devlist[i]),
262 libusb_get_device_address(devlist[i]), NULL);
267 /* Not a supported VID/PID. */
270 libusb_free_device_list(devlist, 1);
272 return std_scan_complete(di, devices);
275 static int dev_open(struct sr_dev_inst *sdi)
277 struct dev_context *devc;
278 struct sr_usb_dev_inst *usb;
279 int64_t timediff_us, timediff_ms;
286 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
287 * for the FX2 to renumerate.
290 if (devc->fw_updated > 0) {
291 sr_info("Waiting for device to reset.");
292 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
293 g_usleep(300 * 1000);
295 while (timediff_ms < MAX_RENUM_DELAY_MS) {
296 if ((err = hantek_6xxx_open(sdi)) == SR_OK)
298 g_usleep(100 * 1000);
299 timediff_us = g_get_monotonic_time() - devc->fw_updated;
300 timediff_ms = timediff_us / 1000;
301 sr_spew("Waited %" PRIi64 " ms.", timediff_ms);
303 if (timediff_ms < MAX_RENUM_DELAY_MS)
304 sr_info("Device came back after %"PRIu64" ms.", timediff_ms);
306 err = hantek_6xxx_open(sdi);
310 sr_err("Unable to open device.");
314 err = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
316 sr_err("Unable to claim interface: %s.",
317 libusb_error_name(err));
324 static int dev_close(struct sr_dev_inst *sdi)
326 hantek_6xxx_close(sdi);
331 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
332 const struct sr_channel_group *cg)
334 struct dev_context *devc;
335 struct sr_usb_dev_inst *usb;
337 const uint64_t *vdiv;
341 case SR_CONF_NUM_VDIV:
342 *data = g_variant_new_int32(ARRAY_SIZE(vdivs));
352 case SR_CONF_SAMPLERATE:
353 *data = g_variant_new_uint64(devc->samplerate);
355 case SR_CONF_LIMIT_MSEC:
356 *data = g_variant_new_uint64(devc->limit_msec);
358 case SR_CONF_LIMIT_SAMPLES:
359 *data = g_variant_new_uint64(devc->limit_samples);
365 if (usb->address == 255)
366 /* Device still needs to re-enumerate after firmware
367 * upload, so we don't know its (future) address. */
369 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
370 *data = g_variant_new_string(str);
376 if (sdi->channel_groups->data == cg)
378 else if (sdi->channel_groups->next->data == cg)
384 vdiv = vdivs[devc->voltage[ch_idx]];
385 *data = g_variant_new("(tt)", vdiv[0], vdiv[1]);
387 case SR_CONF_COUPLING:
388 *data = g_variant_new_string((devc->coupling[ch_idx] \
389 == COUPLING_DC) ? "DC" : "AC");
397 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
398 const struct sr_channel_group *cg)
400 struct dev_context *devc;
402 int tmp_int, ch_idx, ret;
406 if (sdi->status != SR_ST_ACTIVE)
407 return SR_ERR_DEV_CLOSED;
413 case SR_CONF_SAMPLERATE:
414 devc->samplerate = g_variant_get_uint64(data);
415 hantek_6xxx_update_samplerate(sdi);
417 case SR_CONF_LIMIT_MSEC:
418 devc->limit_msec = g_variant_get_uint64(data);
420 case SR_CONF_LIMIT_SAMPLES:
421 devc->limit_samples = g_variant_get_uint64(data);
428 if (sdi->channel_groups->data == cg)
430 else if (sdi->channel_groups->next->data == cg)
436 g_variant_get(data, "(tt)", &p, &q);
438 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
439 if (vdivs[i][0] == p && vdivs[i][1] == q) {
445 devc->voltage[ch_idx] = tmp_int;
446 hantek_6xxx_update_vdiv(sdi);
450 case SR_CONF_COUPLING:
451 tmp_str = g_variant_get_string(data, NULL);
452 for (i = 0; i < devc->coupling_tab_size; i++) {
453 if (!strcmp(tmp_str, devc->coupling_vals[i])) {
454 devc->coupling[ch_idx] = i;
458 if (i == devc->coupling_tab_size)
470 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
471 const struct sr_channel_group *cg)
473 GVariant *tuple, *rational[2];
477 struct dev_context *devc = NULL;
479 if (key == SR_CONF_SCAN_OPTIONS) {
480 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
481 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
483 } else if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
484 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
485 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
494 case SR_CONF_DEVICE_OPTIONS:
495 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
496 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
498 case SR_CONF_SAMPLERATE:
499 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
500 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
501 samplerates, ARRAY_SIZE(samplerates),
503 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
504 *data = g_variant_builder_end(&gvb);
511 case SR_CONF_DEVICE_OPTIONS:
512 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
513 devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
515 case SR_CONF_COUPLING:
518 *data = g_variant_new_strv(devc->coupling_vals, devc->coupling_tab_size);
521 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
522 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
523 rational[0] = g_variant_new_uint64(vdivs[i][0]);
524 rational[1] = g_variant_new_uint64(vdivs[i][1]);
525 tuple = g_variant_new_tuple(rational, 2);
526 g_variant_builder_add_value(&gvb, tuple);
528 *data = g_variant_builder_end(&gvb);
538 /* Minimise data amount for limit_samples and limit_msec limits. */
539 static uint32_t data_amount(const struct sr_dev_inst *sdi)
541 struct dev_context *devc = sdi->priv;
542 uint32_t data_left, data_left_2, i;
545 if (devc->limit_msec) {
546 time_left = devc->limit_msec - (g_get_monotonic_time() - devc->aq_started) / 1000;
547 data_left = devc->samplerate * MAX(time_left, 0) * NUM_CHANNELS / 1000;
548 } else if (devc->limit_samples) {
549 data_left = (devc->limit_samples - devc->samp_received) * NUM_CHANNELS;
551 data_left = devc->samplerate * NUM_CHANNELS;
554 /* Round up to nearest power of two. */
555 for (i = MIN_PACKET_SIZE; i < data_left; i *= 2)
559 sr_spew("data_amount: %u (rounded to power of 2: %u)", data_left, data_left_2);
564 static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf,
567 struct sr_datafeed_packet packet;
568 struct sr_datafeed_analog analog;
569 struct sr_analog_encoding encoding;
570 struct sr_analog_meaning meaning;
571 struct sr_analog_spec spec;
572 struct dev_context *devc = sdi->priv;
573 GSList *channels = devc->enabled_channels;
575 const float ch_bit[] = { RANGE(0) / 255, RANGE(1) / 255 };
576 const float ch_center[] = { RANGE(0) / 2, RANGE(1) / 2 };
578 sr_analog_init(&analog, &encoding, &meaning, &spec, 0);
580 packet.type = SR_DF_ANALOG;
581 packet.payload = &analog;
583 analog.num_samples = num_samples;
584 analog.meaning->mq = SR_MQ_VOLTAGE;
585 analog.meaning->unit = SR_UNIT_VOLT;
586 analog.meaning->mqflags = 0;
588 analog.data = g_try_malloc(num_samples * sizeof(float));
590 sr_err("Analog data buffer malloc failed.");
591 devc->dev_state = STOPPING;
595 for (int ch = 0; ch < 2; ch++) {
596 if (!devc->ch_enabled[ch])
599 float vdivlog = log10f(ch_bit[ch]);
600 int digits = -(int)vdivlog + (vdivlog < 0.0);
601 analog.encoding->digits = digits;
602 analog.spec->spec_digits = digits;
603 analog.meaning->channels = g_slist_append(NULL, channels->data);
605 for (int i = 0; i < num_samples; i++) {
607 * The device always sends data for both channels. If a channel
608 * is disabled, it contains a copy of the enabled channel's
609 * data. However, we only send the requested channels to
612 * Voltage values are encoded as a value 0-255, where the
613 * value is a point in the range represented by the vdiv
614 * setting. There are 10 vertical divs, so e.g. 500mV/div
615 * represents 5V peak-to-peak where 0 = -2.5V and 255 = +2.5V.
617 ((float *)analog.data)[i] = ch_bit[ch] * *(buf + i * 2 + ch) - ch_center[ch];
620 sr_session_send(sdi, &packet);
621 g_slist_free(analog.meaning->channels);
623 channels = channels->next;
628 static void send_data(struct sr_dev_inst *sdi, struct libusb_transfer *buf[], uint64_t samples)
634 while (send < samples) {
635 chunk = MIN(samples - send, (uint64_t)(buf[i]->actual_length / NUM_CHANNELS));
637 send_chunk(sdi, buf[i]->buffer, chunk);
640 * Everything in this transfer was either copied to the buffer
641 * or sent to the session bus.
643 g_free(buf[i]->buffer);
644 libusb_free_transfer(buf[i]);
650 * Called by libusb (as triggered by handle_event()) when a transfer comes in.
651 * Only channel data comes in asynchronously, and all transfers for this are
652 * queued up beforehand, so this just needs to chuck the incoming data onto
653 * the libsigrok session bus.
655 static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer)
657 struct sr_dev_inst *sdi;
658 struct dev_context *devc;
660 sdi = transfer->user_data;
663 if (devc->dev_state == FLUSH) {
664 g_free(transfer->buffer);
665 libusb_free_transfer(transfer);
666 devc->dev_state = CAPTURE;
667 devc->aq_started = g_get_monotonic_time();
668 read_channel(sdi, data_amount(sdi));
672 if (devc->dev_state != CAPTURE)
675 if (!devc->sample_buf) {
676 devc->sample_buf_size = 10;
677 devc->sample_buf = g_try_malloc(devc->sample_buf_size * sizeof(transfer));
678 devc->sample_buf_write = 0;
681 if (devc->sample_buf_write >= devc->sample_buf_size) {
682 devc->sample_buf_size += 10;
683 devc->sample_buf = g_try_realloc(devc->sample_buf,
684 devc->sample_buf_size * sizeof(transfer));
685 if (!devc->sample_buf) {
686 sr_err("Sample buffer malloc failed.");
687 devc->dev_state = STOPPING;
692 devc->sample_buf[devc->sample_buf_write++] = transfer;
693 devc->samp_received += transfer->actual_length / NUM_CHANNELS;
695 sr_spew("receive_transfer(): calculated samplerate == %" PRIu64 "ks/s",
696 (uint64_t)(transfer->actual_length * 1000 /
697 (g_get_monotonic_time() - devc->read_start_ts + 1) /
700 sr_spew("receive_transfer(): status %s received %d bytes.",
701 libusb_error_name(transfer->status), transfer->actual_length);
703 if (transfer->actual_length == 0)
704 /* Nothing to send to the bus. */
707 if (devc->limit_samples && devc->samp_received >= devc->limit_samples) {
708 sr_info("Requested number of samples reached, stopping. %"
709 PRIu64 " <= %" PRIu64, devc->limit_samples,
710 devc->samp_received);
711 send_data(sdi, devc->sample_buf, devc->limit_samples);
712 sdi->driver->dev_acquisition_stop(sdi);
713 } else if (devc->limit_msec && (g_get_monotonic_time() -
714 devc->aq_started) / 1000 >= devc->limit_msec) {
715 sr_info("Requested time limit reached, stopping. %d <= %d",
716 (uint32_t)devc->limit_msec,
717 (uint32_t)(g_get_monotonic_time() - devc->aq_started) / 1000);
718 send_data(sdi, devc->sample_buf, devc->samp_received);
719 g_free(devc->sample_buf);
720 devc->sample_buf = NULL;
721 sdi->driver->dev_acquisition_stop(sdi);
723 read_channel(sdi, data_amount(sdi));
727 static int read_channel(const struct sr_dev_inst *sdi, uint32_t amount)
730 struct dev_context *devc;
734 amount = MIN(amount, MAX_PACKET_SIZE);
735 ret = hantek_6xxx_get_channeldata(sdi, receive_transfer, amount);
736 devc->read_start_ts = g_get_monotonic_time();
737 devc->read_data_amount = amount;
742 static int handle_event(int fd, int revents, void *cb_data)
744 const struct sr_dev_inst *sdi;
746 struct sr_dev_driver *di;
747 struct dev_context *devc;
748 struct drv_context *drvc;
758 /* Always handle pending libusb events. */
759 tv.tv_sec = tv.tv_usec = 0;
760 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
762 if (devc->dev_state == STOPPING) {
763 /* We've been told to wind up the acquisition. */
764 sr_dbg("Stopping acquisition.");
766 hantek_6xxx_stop_data_collecting(sdi);
768 * TODO: Doesn't really cancel pending transfers so they might
769 * come in after SR_DF_END is sent.
771 usb_source_remove(sdi->session, drvc->sr_ctx);
773 std_session_send_df_end(sdi);
775 devc->dev_state = IDLE;
783 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
785 struct dev_context *devc;
786 struct sr_dev_driver *di = sdi->driver;
787 struct drv_context *drvc = di->context;
789 if (sdi->status != SR_ST_ACTIVE)
790 return SR_ERR_DEV_CLOSED;
794 if (configure_channels(sdi) != SR_OK) {
795 sr_err("Failed to configure channels.");
799 if (hantek_6xxx_init(sdi) != SR_OK)
802 std_session_send_df_header(sdi);
804 devc->samp_received = 0;
805 devc->dev_state = FLUSH;
807 usb_source_add(sdi->session, drvc->sr_ctx, TICK,
808 handle_event, (void *)sdi);
810 hantek_6xxx_start_data_collecting(sdi);
812 read_channel(sdi, FLUSH_PACKET_SIZE);
817 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
819 struct dev_context *devc;
821 if (sdi->status != SR_ST_ACTIVE)
825 devc->dev_state = STOPPING;
827 g_free(devc->sample_buf);
828 devc->sample_buf = NULL;
833 static struct sr_dev_driver hantek_6xxx_driver_info = {
834 .name = "hantek-6xxx",
835 .longname = "Hantek 6xxx",
838 .cleanup = std_cleanup,
840 .dev_list = std_dev_list,
841 .dev_clear = dev_clear,
842 .config_get = config_get,
843 .config_set = config_set,
844 .config_list = config_list,
845 .dev_open = dev_open,
846 .dev_close = dev_close,
847 .dev_acquisition_start = dev_acquisition_start,
848 .dev_acquisition_stop = dev_acquisition_stop,
851 SR_REGISTER_DEV_DRIVER(hantek_6xxx_driver_info);