* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
+#define NUM_PROBES 2
+
+static const int hwcaps[] = {
+ SR_HWCAP_OSCILLOSCOPE,
+ SR_HWCAP_LIMIT_SAMPLES,
+ SR_HWCAP_TIMEBASE,
+ SR_HWCAP_TRIGGER_SOURCE,
+ SR_HWCAP_TRIGGER_SLOPE,
+ SR_HWCAP_HORIZ_TRIGGERPOS,
+ SR_HWCAP_VDIV,
+ SR_HWCAP_COUPLING,
+ 0,
+};
+
+static const char *probe_names[] = {
+ "CH1", "CH2",
+ NULL,
+};
+
+static const struct sr_rational timebases[] = {
+ /* 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 },
+ { 0, 0},
+};
+
+static const struct sr_rational vdivs[] = {
+ /* 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 },
+ { 0, 0 },
+};
+
+static const char *trigger_sources[] = {
+ "CH1",
+ "CH2",
+ "EXT",
+ "AC Line",
+ NULL,
+};
+
+static const char *coupling[] = {
+ "AC",
+ "DC",
+ "GND",
+ NULL,
+};
+
SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info;
static struct sr_dev_driver *di = &rigol_ds1xx2_driver_info;
if (!(devc = sdi->priv))
continue;
- /* TODO */
+ close(devc->fd);
sr_dev_inst_free(sdi);
}
return SR_OK;
}
-static int hw_init(void)
+static int hw_init(struct sr_context *sr_ctx)
{
struct drv_context *drvc;
+ (void)sr_ctx;
if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
sr_err("Driver context malloc failed.");
return SR_ERR_MALLOC;
}
- /* TODO */
-
di->priv = drvc;
return SR_OK;
static GSList *hw_scan(GSList *options)
{
struct drv_context *drvc;
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+ struct sr_probe *probe;
GSList *devices;
+ int i;
(void)options;
drvc = di->priv;
drvc->instances = NULL;
- /* TODO */
+ if (!(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, "Rigol", "DS1xx2", NULL)))
+ return NULL;
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
+ return NULL;
+
+ sdi->priv = devc;
+ sdi->driver = di;
+
+ for (i = 0; i < 2; i++)
+ {
+ if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, i == 0 ? "CH1" : "CH2")))
+ return NULL;
+ sdi->probes = g_slist_append(sdi->probes, probe);
+ }
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
return devices;
}
static int hw_dev_open(struct sr_dev_inst *sdi)
{
- /* TODO */
+ int fd = open("/dev/usbtmc1", O_RDWR);
+
+ if (fd == -1)
+ return SR_ERR;
+
+ struct dev_context *devc = sdi->priv;
+ devc->fd = fd;
+
+ devc->scale = 1;
return SR_OK;
}
static int hw_dev_close(struct sr_dev_inst *sdi)
{
- /* TODO */
+ struct dev_context *devc = sdi->priv;
+
+ close(devc->fd);
return SR_OK;
}
{
clear_instances();
- /* TODO */
-
return SR_OK;
}
static int hw_info_get(int info_id, const void **data,
const struct sr_dev_inst *sdi)
{
+ (void)sdi;
+
switch (info_id) {
- /* TODO */
+ case SR_DI_HWCAPS:
+ *data = hwcaps;
+ break;
+ case SR_DI_NUM_PROBES:
+ *data = GINT_TO_POINTER(NUM_PROBES);
+ break;
+ case SR_DI_PROBE_NAMES:
+ *data = probe_names;
+ break;
+ case SR_DI_TIMEBASES:
+ *data = timebases;
+ break;
+ case SR_DI_TRIGGER_SOURCES:
+ *data = trigger_sources;
+ break;
+ case SR_DI_VDIVS:
+ *data = vdivs;
+ break;
+ case SR_DI_COUPLING:
+ *data = coupling;
+ break;
default:
sr_err("Unknown info_id: %d.", info_id);
return SR_ERR_ARG;
static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
const void *value)
{
- int ret;
+ struct dev_context *devc = sdi->priv;
+ uint64_t tmp_u64;
+ float tmp_float;
+ struct sr_rational tmp_rat;
+ int ret, i, j;
+ char *channel;
if (sdi->status != SR_ST_ACTIVE) {
sr_err("Device inactive, can't set config options.");
ret = SR_OK;
switch (hwcap) {
- /* TODO */
+ case SR_HWCAP_LIMIT_FRAMES:
+ devc->limit_frames = *(const uint64_t *)value;
+ break;
+ case SR_HWCAP_TRIGGER_SLOPE:
+ tmp_u64 = *(const int *)value;
+ rigol_ds1xx2_send_data(devc->fd, "TRIG:EDGE:%s\n", tmp_u64 ? "POS" : "NEG");
+ break;
+ case SR_HWCAP_HORIZ_TRIGGERPOS:
+ tmp_float = *(const float *)value;
+ rigol_ds1xx2_send_data(devc->fd, "TIM:OFFS %f\n", tmp_float);
+ break;
+ case SR_HWCAP_TIMEBASE:
+ tmp_rat = *(const struct sr_rational *)value;
+ rigol_ds1xx2_send_data(devc->fd, "TIM:SCAL %f\n", (float) tmp_rat.p / tmp_rat.q);
+ break;
+ case SR_HWCAP_TRIGGER_SOURCE:
+ if (!strcmp(value, "CH1"))
+ channel = "CHAN1";
+ else if (!strcmp(value, "CH2"))
+ channel = "CHAN2";
+ else if (!strcmp(value, "EXT"))
+ channel = "EXT";
+ else if (!strcmp(value, "AC Line"))
+ channel = "ACL";
+ else
+ ret = SR_ERR_ARG;
+ break;
+ rigol_ds1xx2_send_data(devc->fd, "TRIG:SOUR %s\n", channel);
+ break;
+ case SR_HWCAP_VDIV:
+ /* TODO: Not supporting vdiv per channel yet. */
+ tmp_rat = *(const struct sr_rational *)value;
+ for (i = 0; vdivs[i].p && vdivs[i].q; i++) {
+ if (vdivs[i].p == tmp_rat.p
+ && vdivs[i].q == tmp_rat.q) {
+ devc->scale = (float) tmp_rat.p / tmp_rat.q;
+ for (j = 0; j < 2; j++)
+ rigol_ds1xx2_send_data(devc->fd, "CHAN%d:SCAL %f\n", j, devc->scale);
+ break;
+ }
+ }
+ if (vdivs[i].p == 0 && vdivs[i].q == 0)
+ ret = SR_ERR_ARG;
+ break;
+ case SR_HWCAP_COUPLING:
+ /* TODO: Not supporting coupling per channel yet. */
+ for (i = 0; coupling[i]; i++) {
+ if (!strcmp(value, coupling[i])) {
+ for (j = 0; j < 2; j++)
+ rigol_ds1xx2_send_data(devc->fd, "CHAN%d:COUP %s\n", j, coupling[i]);
+ break;
+ }
+ }
+ if (coupling[i] == 0)
+ ret = SR_ERR_ARG;
+ break;
default:
sr_err("Unknown hardware capability: %d.", hwcap);
ret = SR_ERR_ARG;
static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
- /* TODO */
+ struct dev_context *devc = sdi->priv;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_header header;
+ struct sr_datafeed_meta_analog meta;
+ char buf[256];
+ int len;
+ (void)cb_data;
+
+ devc->num_frames = 0;
+
+ sr_source_add(devc->fd, G_IO_IN, 50, rigol_ds1xx2_receive_data, (void *)sdi);
+
+ /* Send header packet to the session bus. */
+ packet.type = SR_DF_HEADER;
+ packet.payload = (unsigned char *)&header;
+ header.feed_version = 1;
+ gettimeofday(&header.starttime, NULL);
+ sr_session_send(cb_data, &packet);
+
+ /* Send metadata about the SR_DF_ANALOG packets to come. */
+ packet.type = SR_DF_META_ANALOG;
+ packet.payload = &meta;
+ meta.num_probes = NUM_PROBES;
+ sr_session_send(cb_data, &packet);
+
+ rigol_ds1xx2_send_data(devc->fd, ":CHAN1:SCAL?\n");
+ len = read(devc->fd, buf, sizeof(buf));
+ buf[len] = 0;
+ devc->scale = atof(buf);
+ sr_dbg("scale is %f", devc->scale);
+ rigol_ds1xx2_send_data(devc->fd, ":CHAN1:OFFS?\n");
+ len = read(devc->fd, buf, sizeof(buf));
+ buf[len] = 0;
+ devc->offset = atof(buf);
+ sr_dbg("offset is %f", devc->offset);
+ rigol_ds1xx2_send_data(devc->fd, ":WAV:DATA?\n");
return SR_OK;
}
static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
+ struct dev_context *devc = sdi->priv;
(void)cb_data;
if (sdi->status != SR_ST_ACTIVE) {
return SR_ERR;
}
- /* TODO */
+ sr_source_remove(devc->fd);
return SR_OK;
}
projects / libsigrok.git / blobdiff