/* * This file is part of the libsigrok project. * * Copyright (C) 2012 Martin Ling * Copyright (C) 2013 Bert Vermeulen * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include #include #include #include "libsigrok.h" #include "libsigrok-internal.h" #include "protocol.h" #define NUM_TIMEBASE 12 #define NUM_VDIV 8 static const int32_t hwopts[] = { SR_CONF_CONN, }; static const int32_t hwcaps[] = { SR_CONF_OSCILLOSCOPE, SR_CONF_TIMEBASE, SR_CONF_TRIGGER_SOURCE, SR_CONF_TRIGGER_SLOPE, SR_CONF_HORIZ_TRIGGERPOS, SR_CONF_VDIV, SR_CONF_COUPLING, SR_CONF_NUM_TIMEBASE, SR_CONF_NUM_VDIV, }; static const uint64_t timebases[][2] = { /* nanoseconds */ { 2, 1000000000 }, { 5, 1000000000 }, { 10, 1000000000 }, { 20, 1000000000 }, { 50, 1000000000 }, { 100, 1000000000 }, { 500, 1000000000 }, /* microseconds */ { 1, 1000000 }, { 2, 1000000 }, { 5, 1000000 }, { 10, 1000000 }, { 20, 1000000 }, { 50, 1000000 }, { 100, 1000000 }, { 200, 1000000 }, { 500, 1000000 }, /* milliseconds */ { 1, 1000 }, { 2, 1000 }, { 5, 1000 }, { 10, 1000 }, { 20, 1000 }, { 50, 1000 }, { 100, 1000 }, { 200, 1000 }, { 500, 1000 }, /* seconds */ { 1, 1 }, { 2, 1 }, { 5, 1 }, { 10, 1 }, { 20, 1 }, { 50, 1 }, }; static const uint64_t vdivs[][2] = { /* millivolts */ { 2, 1000 }, { 5, 1000 }, { 10, 1000 }, { 20, 1000 }, { 50, 1000 }, { 100, 1000 }, { 200, 1000 }, { 500, 1000 }, /* volts */ { 1, 1 }, { 2, 1 }, { 5, 1 }, { 10, 1 }, }; static const char *trigger_sources[] = { "CH1", "CH2", "EXT", "AC Line", "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15", }; static const char *coupling[] = { "AC", "DC", "GND", }; static const char *supported_models[] = { "DS1052E", "DS1102E", "DS1052D", "DS1102D", }; SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info; static struct sr_dev_driver *di = &rigol_ds1xx2_driver_info; /* Properly close and free all devices. */ static int clear_instances(void) { struct sr_dev_inst *sdi; struct drv_context *drvc; struct dev_context *devc; GSList *l; if (!(drvc = di->priv)) return SR_OK; for (l = drvc->instances; l; l = l->next) { if (!(sdi = l->data)) continue; if (sdi->conn) sr_serial_dev_inst_free(sdi->conn); if ((devc = sdi->priv)) { g_free(devc->coupling[0]); g_free(devc->coupling[1]); g_free(devc->trigger_source); g_free(devc->trigger_slope); } sr_dev_inst_free(sdi); } g_slist_free(drvc->instances); drvc->instances = NULL; return SR_OK; } static int set_cfg(const struct sr_dev_inst *sdi, const char *format, ...) { va_list args; char buf[256]; va_start(args, format); vsnprintf(buf, 255, format, args); va_end(args); if (rigol_ds1xx2_send(sdi, buf) != SR_OK) return SR_ERR; /* When setting a bunch of parameters in a row, the DS1052E scrambles * some of them unless there is at least 100ms delay in between. */ sr_spew("delay %dms", 100); g_usleep(100000); return SR_OK; } static int hw_init(struct sr_context *sr_ctx) { return std_hw_init(sr_ctx, di, LOG_PREFIX); } static int probe_port(const char *port, GSList **devices) { struct dev_context *devc; struct sr_dev_inst *sdi; struct sr_serial_dev_inst *serial; struct sr_probe *probe; unsigned int i; int len, num_tokens; gboolean matched, has_digital; const char *manufacturer, *model, *version; char buf[256]; gchar **tokens, *channel_name; *devices = NULL; if (!(serial = sr_serial_dev_inst_new(port, NULL))) return SR_ERR_MALLOC; if (serial_open(serial, SERIAL_RDWR) != SR_OK) return SR_ERR; len = serial_write(serial, "*IDN?", 5); len = serial_read(serial, buf, sizeof(buf)); if (serial_close(serial) != SR_OK) return SR_ERR; sr_serial_dev_inst_free(serial); if (len == 0) return SR_ERR_NA; buf[len] = 0; tokens = g_strsplit(buf, ",", 0); sr_dbg("response: %s [%s]", port, buf); for (num_tokens = 0; tokens[num_tokens] != NULL; num_tokens++); if (num_tokens < 4) { g_strfreev(tokens); return SR_ERR_NA; } manufacturer = tokens[0]; model = tokens[1]; version = tokens[3]; if (strcmp(manufacturer, "Rigol Technologies")) { g_strfreev(tokens); return SR_ERR_NA; } matched = has_digital = FALSE; for (i = 0; i < ARRAY_SIZE(supported_models); i++) { if (!strcmp(model, supported_models[i])) { matched = TRUE; has_digital = g_str_has_suffix(model, "D"); break; } } if (!matched || !(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, manufacturer, model, version))) { g_strfreev(tokens); return SR_ERR_NA; } g_strfreev(tokens); if (!(sdi->conn = sr_serial_dev_inst_new(port, NULL))) return SR_ERR_MALLOC; sdi->driver = di; if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) return SR_ERR_MALLOC; devc->limit_frames = 0; devc->has_digital = has_digital; for (i = 0; i < 2; i++) { if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, i == 0 ? "CH1" : "CH2"))) return SR_ERR_MALLOC; sdi->probes = g_slist_append(sdi->probes, probe); } if (devc->has_digital) { for (i = 0; i < 16; i++) { if (!(channel_name = g_strdup_printf("D%d", i))) return SR_ERR_MALLOC; probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, channel_name); g_free(channel_name); if (!probe) return SR_ERR_MALLOC; sdi->probes = g_slist_append(sdi->probes, probe); } } sdi->priv = devc; *devices = g_slist_append(NULL, sdi); return SR_OK; } static GSList *hw_scan(GSList *options) { struct drv_context *drvc; struct sr_config *src; GSList *l, *devices; GDir *dir; int ret; const gchar *dev_name; gchar *port = NULL; drvc = di->priv; for (l = options; l; l = l->next) { src = l->data; if (src->key == SR_CONF_CONN) { port = (char *)g_variant_get_string(src->data, NULL); break; } } devices = NULL; if (port) { if (probe_port(port, &devices) == SR_ERR_MALLOC) return NULL; } else { if (!(dir = g_dir_open("/sys/class/usb/", 0, NULL))) return NULL; while ((dev_name = g_dir_read_name(dir))) { if (strncmp(dev_name, "usbtmc", 6)) continue; port = g_strconcat("/dev/", dev_name, NULL); ret = probe_port(port, &devices); g_free(port); if (ret == SR_ERR_MALLOC) { g_dir_close(dir); return NULL; } } g_dir_close(dir); } /* Tack a copy of the newly found devices onto the driver list. */ l = g_slist_copy(devices); drvc->instances = g_slist_concat(drvc->instances, l); return devices; } static GSList *hw_dev_list(void) { return ((struct drv_context *)(di->priv))->instances; } static int hw_dev_open(struct sr_dev_inst *sdi) { if (serial_open(sdi->conn, SERIAL_RDWR) != SR_OK) return SR_ERR; if (rigol_ds1xx2_get_dev_cfg(sdi) != SR_OK) return SR_ERR; sdi->status = SR_ST_ACTIVE; return SR_OK; } static int hw_dev_close(struct sr_dev_inst *sdi) { struct sr_serial_dev_inst *serial; serial = sdi->conn; if (serial && serial->fd != -1) { serial_close(serial); sdi->status = SR_ST_INACTIVE; } return SR_OK; } static int hw_cleanup(void) { clear_instances(); return SR_OK; } static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi) { (void)sdi; switch (id) { case SR_CONF_NUM_TIMEBASE: *data = g_variant_new_int32(NUM_TIMEBASE); break; case SR_CONF_NUM_VDIV: *data = g_variant_new_int32(NUM_VDIV); break; default: return SR_ERR_NA; } return SR_OK; } static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) { struct dev_context *devc; uint64_t tmp_u64, p, q; double t_dbl; unsigned int i; int ret; const char *tmp_str; devc = sdi->priv; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; ret = SR_OK; switch (id) { case SR_CONF_LIMIT_FRAMES: devc->limit_frames = g_variant_get_uint64(data); break; case SR_CONF_TRIGGER_SLOPE: tmp_u64 = g_variant_get_uint64(data); if (tmp_u64 != 0 && tmp_u64 != 1) return SR_ERR; g_free(devc->trigger_slope); devc->trigger_slope = g_strdup(tmp_u64 ? "POS" : "NEG"); ret = set_cfg(sdi, ":TRIG:EDGE:SLOP %s", devc->trigger_slope); break; case SR_CONF_HORIZ_TRIGGERPOS: t_dbl = g_variant_get_double(data); if (t_dbl < 0.0 || t_dbl > 1.0) return SR_ERR; devc->horiz_triggerpos = t_dbl; /* We have the trigger offset as a percentage of the frame, but * need to express this in seconds. */ t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * NUM_TIMEBASE; ret = set_cfg(sdi, ":TIM:OFFS %.6f", t_dbl); break; case SR_CONF_TIMEBASE: g_variant_get(data, "(tt)", &p, &q); for (i = 0; i < ARRAY_SIZE(timebases); i++) { if (timebases[i][0] == p && timebases[i][1] == q) { devc->timebase = (float)p / q; ret = set_cfg(sdi, ":TIM:SCAL %.9f", devc->timebase); break; } } if (i == ARRAY_SIZE(timebases)) ret = SR_ERR_ARG; break; case SR_CONF_TRIGGER_SOURCE: tmp_str = g_variant_get_string(data, NULL); for (i = 0; i < ARRAY_SIZE(trigger_sources); i++) { if (!strcmp(trigger_sources[i], tmp_str)) { g_free(devc->trigger_source); devc->trigger_source = g_strdup(trigger_sources[i]); if (!strcmp(devc->trigger_source, "AC Line")) tmp_str = "ACL"; else if (!strcmp(devc->trigger_source, "CH1")) tmp_str = "CHAN1"; else if (!strcmp(devc->trigger_source, "CH2")) tmp_str = "CHAN2"; else tmp_str = (char *)devc->trigger_source; ret = set_cfg(sdi, ":TRIG:EDGE:SOUR %s", tmp_str); break; } } if (i == ARRAY_SIZE(trigger_sources)) ret = SR_ERR_ARG; break; case SR_CONF_VDIV: g_variant_get(data, "(tt)", &p, &q); for (i = 0; i < ARRAY_SIZE(vdivs); i++) { if (vdivs[i][0] != p || vdivs[i][1] != q) continue; devc->vdiv[0] = devc->vdiv[1] = (float)p / q; set_cfg(sdi, ":CHAN1:SCAL %.3f", devc->vdiv[0]); ret = set_cfg(sdi, ":CHAN2:SCAL %.3f", devc->vdiv[1]); break; } if (i == ARRAY_SIZE(vdivs)) ret = SR_ERR_ARG; break; case SR_CONF_COUPLING: /* TODO: Not supporting coupling per channel yet. */ tmp_str = g_variant_get_string(data, NULL); for (i = 0; i < ARRAY_SIZE(coupling); i++) { if (!strcmp(tmp_str, coupling[i])) { g_free(devc->coupling[0]); g_free(devc->coupling[1]); devc->coupling[0] = g_strdup(coupling[i]); devc->coupling[1] = g_strdup(coupling[i]); set_cfg(sdi, ":CHAN1:COUP %s", devc->coupling[0]); ret = set_cfg(sdi, ":CHAN2:COUP %s", devc->coupling[1]); break; } } if (i == ARRAY_SIZE(coupling)) ret = SR_ERR_ARG; break; default: ret = SR_ERR_NA; break; } return ret; } static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) { GVariant *tuple, *rational[2]; GVariantBuilder gvb; unsigned int i; struct dev_context *devc; switch (key) { case SR_CONF_SCAN_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); break; case SR_CONF_DEVICE_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); break; case SR_CONF_COUPLING: *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling)); break; case SR_CONF_VDIV: g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); for (i = 0; i < ARRAY_SIZE(vdivs); i++) { rational[0] = g_variant_new_uint64(vdivs[i][0]); rational[1] = g_variant_new_uint64(vdivs[i][1]); tuple = g_variant_new_tuple(rational, 2); g_variant_builder_add_value(&gvb, tuple); } *data = g_variant_builder_end(&gvb); break; case SR_CONF_TIMEBASE: g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); for (i = 0; i < ARRAY_SIZE(timebases); i++) { rational[0] = g_variant_new_uint64(timebases[i][0]); rational[1] = g_variant_new_uint64(timebases[i][1]); tuple = g_variant_new_tuple(rational, 2); g_variant_builder_add_value(&gvb, tuple); } *data = g_variant_builder_end(&gvb); break; case SR_CONF_TRIGGER_SOURCE: if (!sdi || !sdi->priv) /* Can't know this until we have the exact model. */ return SR_ERR_ARG; devc = sdi->priv; *data = g_variant_new_strv(trigger_sources, devc->has_digital ? ARRAY_SIZE(trigger_sources) : 4); break; default: return SR_ERR_NA; } return SR_OK; } static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { struct sr_serial_dev_inst *serial; struct dev_context *devc; struct sr_probe *probe; GSList *l; char cmd[256]; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; serial = sdi->conn; devc = sdi->priv; for (l = sdi->probes; l; l = l->next) { probe = l->data; sr_dbg("handling probe %s", probe->name); if (probe->type == SR_PROBE_ANALOG) { if (probe->enabled) devc->enabled_analog_probes = g_slist_append( devc->enabled_analog_probes, probe); if (probe->enabled != devc->analog_channels[probe->index]) { /* Enabled channel is currently disabled, or vice versa. */ sprintf(cmd, ":CHAN%d:DISP %s", probe->index + 1, probe->enabled ? "ON" : "OFF"); if (rigol_ds1xx2_send(sdi, cmd) != SR_OK) return SR_ERR; } } else if (probe->type == SR_PROBE_LOGIC) { if (probe->enabled) devc->enabled_digital_probes = g_slist_append( devc->enabled_digital_probes, probe); if (probe->enabled != devc->digital_channels[probe->index]) { /* Enabled channel is currently disabled, or vice versa. */ sprintf(cmd, ":DIG%d:TURN %s", probe->index, probe->enabled ? "ON" : "OFF"); if (rigol_ds1xx2_send(sdi, cmd) != SR_OK) return SR_ERR; } } } if (!devc->enabled_analog_probes && !devc->enabled_digital_probes) return SR_ERR; sr_source_add(serial->fd, G_IO_IN, 50, rigol_ds1xx2_receive, (void *)sdi); /* Send header packet to the session bus. */ std_session_send_df_header(cb_data, LOG_PREFIX); /* Fetch the first frame. */ if (devc->enabled_analog_probes) { devc->channel_frame = devc->enabled_analog_probes->data; if (rigol_ds1xx2_send(sdi, ":WAV:DATA? CHAN%d", devc->channel_frame->index + 1) != SR_OK) return SR_ERR; } else { devc->channel_frame = devc->enabled_digital_probes->data; if (rigol_ds1xx2_send(sdi, ":WAV:DATA? DIG") != SR_OK) return SR_ERR; } devc->num_frame_bytes = 0; return SR_OK; } static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) { struct dev_context *devc; struct sr_serial_dev_inst *serial; (void)cb_data; devc = sdi->priv; if (sdi->status != SR_ST_ACTIVE) { sr_err("Device inactive, can't stop acquisition."); return SR_ERR; } g_slist_free(devc->enabled_analog_probes); g_slist_free(devc->enabled_digital_probes); devc->enabled_analog_probes = NULL; devc->enabled_digital_probes = NULL; serial = sdi->conn; sr_source_remove(serial->fd); return SR_OK; } SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info = { .name = "rigol-ds1xx2", .longname = "Rigol DS1xx2", .api_version = 1, .init = hw_init, .cleanup = hw_cleanup, .scan = hw_scan, .dev_list = hw_dev_list, .dev_clear = clear_instances, .config_get = config_get, .config_set = config_set, .config_list = config_list, .dev_open = hw_dev_open, .dev_close = hw_dev_close, .dev_acquisition_start = dev_acquisition_start, .dev_acquisition_stop = dev_acquisition_stop, .priv = NULL, };