*/
#include <glib.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "config.h"
-#include "fluke-dmm.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+#include "fluke-dmm.h"
+
+static const int hwopts[] = {
+ SR_HWOPT_CONN,
+ SR_HWOPT_SERIALCOMM,
+ 0,
+};
+static const int hwcaps[] = {
+ SR_HWCAP_MULTIMETER,
+ SR_HWCAP_LIMIT_SAMPLES,
+ SR_HWCAP_LIMIT_MSEC,
+ SR_HWCAP_CONTINUOUS,
+ 0,
+};
+
+static const char *probe_names[] = {
+ "Probe",
+ NULL,
+};
SR_PRIV struct sr_dev_driver flukedmm_driver_info;
static struct sr_dev_driver *di = &flukedmm_driver_info;
static const struct flukedmm_profile supported_flukedmm[] = {
- { FLUKE_187, "187" },
+ { FLUKE_187, "187", 100 },
+ { FLUKE_287, "287", 100 },
};
struct drv_context *drvc;
if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
- sr_err("fluke-dmm: driver context malloc failed.");
- return SR_ERR;
+ sr_err("Driver context malloc failed.");
+ return SR_ERR_MALLOC;
}
di->priv = drvc;
return SR_OK;
}
-static int serial_readline(int fd, char **buf, int *buflen, uint64_t timeout_ms)
-{
- uint64_t start;
- int maxlen, len;
-
- timeout_ms *= 1000;
- start = g_get_monotonic_time();
-
- maxlen = *buflen;
- *buflen = len = 0;
- while(1) {
- len = maxlen - *buflen - 1;
- if (len < 1)
- break;
- len = serial_read(fd, *buf + *buflen, 1);
- if (len > 0) {
- *buflen += len;
- *(*buf + *buflen) = '\0';
- if (*buflen > 0 && *(*buf + *buflen - 1) == '\n') {
- /* Strip LF and terminate. */
- *(*buf + --*buflen) = '\0';
- break;
- }
- }
- if (g_get_monotonic_time() - start > timeout_ms)
- /* Timeout */
- break;
- g_usleep(2000);
- }
- sr_dbg("fluke-dmm: received %d: '%s'", *buflen, *buf);
-
- return SR_OK;
-}
-
static GSList *fluke_scan(const char *conn, const char *serialcomm)
{
struct sr_dev_inst *sdi;
char buf[128], *b, **tokens;
if ((fd = serial_open(conn, O_RDWR|O_NONBLOCK)) == -1) {
- sr_err("fluke-dmm: unable to open %s: %s", conn, strerror(errno));
+ sr_err("Unable to open %s: %s.", conn, strerror(errno));
return NULL;
}
if (serial_set_paramstr(fd, serialcomm) != SR_OK) {
- sr_err("fluke-dmm: unable to set serial parameters");
+ sr_err("Unable to set serial parameters.");
return NULL;
}
retry++;
serial_flush(fd);
if (serial_write(fd, "ID\r", 3) == -1) {
- sr_err("fluke-dmm: unable to send ID string: %s",
- strerror(errno));
+ sr_err("Unable to send ID string: %s.",
+ strerror(errno));
continue;
}
tokens[0] + 6, tokens[1] + s)))
return NULL;
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
- sr_dbg("fluke-dmm: failed to malloc devc");
+ sr_err("Device context malloc failed.");
return NULL;
}
devc->profile = &supported_flukedmm[i];
static GSList *hw_scan(GSList *options)
{
- struct sr_dev_inst *sdi;
struct sr_hwopt *opt;
GSList *l, *devices;
const char *conn, *serialcomm;
struct dev_context *devc;
if (!(devc = sdi->priv)) {
- sr_err("fluke-dmm: sdi->priv was NULL.");
+ sr_err("sdi->priv was NULL.");
return SR_ERR_BUG;
}
devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK);
if (devc->serial->fd == -1) {
- sr_err("fluke-dmm: Couldn't open serial port '%s'.",
- devc->serial->port);
+ sr_err("Couldn't open serial port '%s'.", devc->serial->port);
return SR_ERR;
}
if (serial_set_paramstr(devc->serial->fd, devc->serialcomm) != SR_OK) {
- sr_err("fluke-dmm: unable to set serial parameters");
+ sr_err("Unable to set serial parameters.");
return SR_ERR;
}
sdi->status = SR_ST_ACTIVE;
static int hw_dev_close(struct sr_dev_inst *sdi)
{
+ struct dev_context *devc;
- /* TODO */
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ if (devc->serial && devc->serial->fd != -1) {
+ serial_close(devc->serial->fd);
+ devc->serial->fd = -1;
+ sdi->status = SR_ST_INACTIVE;
+ }
return SR_OK;
}
clear_instances();
- /* TODO */
-
return SR_OK;
}
const struct sr_dev_inst *sdi)
{
+ (void)sdi;
switch (info_id) {
- /* TODO */
+ case SR_DI_HWOPTS:
+ *data = hwopts;
+ break;
+ case SR_DI_HWCAPS:
+ *data = hwcaps;
+ break;
+ case SR_DI_NUM_PROBES:
+ *data = GINT_TO_POINTER(1);
+ break;
+ case SR_DI_PROBE_NAMES:
+ *data = probe_names;
+ break;
default:
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;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR;
- ret = SR_OK;
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
switch (hwcap) {
- /* TODO */
+ case SR_HWCAP_LIMIT_MSEC:
+ /* TODO: not yet implemented */
+ if (*(const uint64_t *)value == 0) {
+ sr_err("LIMIT_MSEC can't be 0.");
+ return SR_ERR;
+ }
+ devc->limit_msec = *(const uint64_t *)value;
+ sr_dbg("Setting time limit to %" PRIu64 "ms.",
+ devc->limit_msec);
+ break;
+ case SR_HWCAP_LIMIT_SAMPLES:
+ devc->limit_samples = *(const uint64_t *)value;
+ sr_dbg("Setting sample limit to %" PRIu64 ".",
+ devc->limit_samples);
+ break;
default:
- ret = SR_ERR_ARG;
+ sr_err("Unknown capability: %d.", hwcap);
+ return SR_ERR;
+ break;
}
- return ret;
+ return SR_OK;
}
static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_header header;
+ struct sr_datafeed_meta_analog meta;
+ struct dev_context *devc;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
- /* TODO */
+ sr_dbg("Starting acquisition.");
+
+ devc->cb_data = cb_data;
+
+ /* Send header packet to the session bus. */
+ sr_dbg("Sending SR_DF_HEADER.");
+ packet.type = SR_DF_HEADER;
+ packet.payload = (uint8_t *)&header;
+ header.feed_version = 1;
+ gettimeofday(&header.starttime, NULL);
+ sr_session_send(devc->cb_data, &packet);
+
+ /* Send metadata about the SR_DF_ANALOG packets to come. */
+ sr_dbg("Sending SR_DF_META_ANALOG.");
+ packet.type = SR_DF_META_ANALOG;
+ packet.payload = &meta;
+ meta.num_probes = 1;
+ sr_session_send(devc->cb_data, &packet);
+
+ /* Poll every 100ms, or whenever some data comes in. */
+ sr_source_add(devc->serial->fd, G_IO_IN, 50, fluke_receive_data, (void *)sdi);
+
+ if (serial_write(devc->serial->fd, "QM\r", 3) == -1) {
+ sr_err("Unable to send QM: %s.", strerror(errno));
+ return SR_ERR;
+ }
+ devc->cmd_sent_at = g_get_monotonic_time() / 1000;
+ devc->expect_response = TRUE;
return SR_OK;
}
static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
void *cb_data)
{
-
- (void)cb_data;
+ struct sr_datafeed_packet packet;
+ struct dev_context *devc;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR;
- /* TODO */
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ sr_dbg("Stopping acquisition.");
+
+ sr_source_remove(devc->serial->fd);
+ hw_dev_close((struct sr_dev_inst *)sdi);
+
+ /* Send end packet to the session bus. */
+ sr_dbg("Sending SR_DF_END.");
+ packet.type = SR_DF_END;
+ sr_session_send(cb_data, &packet);
return SR_OK;
}
projects / libsigrok.git / blobdiff