* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
#include "protocol.h"
+
+static const int32_t hwopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
+
+static const int32_t hwcaps[] = {
+ SR_CONF_MULTIMETER,
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_LIMIT_MSEC,
+ SR_CONF_CONTINUOUS,
+};
+
+
+#define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1"
+
+
SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
static struct sr_dev_driver *di = &norma_dmm_driver_info;
+
static int init(struct sr_context *sr_ctx)
{
return std_init(sr_ctx, di, LOG_PREFIX);
}
+
static GSList *scan(GSList *options)
{
+ struct sr_dev_inst *sdi;
struct drv_context *drvc;
- GSList *devices;
-
- (void)options;
+ struct dev_context *devc;
+ struct sr_config *src;
+ struct sr_probe *probe;
+ struct sr_serial_dev_inst *serial;
+ GSList *l, *devices;
+ int len, cnt;
+ const char *conn, *serialcomm;
+ char *buf;
+ char fmttype[10];
+ char req[10];
+ int auxtype;
+
+ #define BUF_MAX (50)
devices = NULL;
drvc = di->priv;
drvc->instances = NULL;
+ conn = serialcomm = NULL;
+
+ for (l = options; l; l = l->next) {
+ src = l->data;
+ switch (src->key) {
+ case SR_CONF_CONN:
+ conn = g_variant_get_string(src->data, NULL);
+ break;
+ case SR_CONF_SERIALCOMM:
+ serialcomm = g_variant_get_string(src->data, NULL);
+ break;
+ }
+ }
+ if (!conn)
+ return NULL;
+ if (!serialcomm)
+ serialcomm = SERIALCOMM;
+
+ if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
+ return NULL;
+
+ if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
+ return NULL;
+
+ serial_flush(serial);
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ len = BUF_MAX;
+ if (!(buf = g_try_malloc(len))) {
+ sr_err("Serial buffer malloc failed.");
+ return NULL;
+ }
+
+ snprintf(req, sizeof(req), "%s\r\n",
+ nmadmm_requests[NMADMM_REQ_IDN].reqstr);
+ for (cnt = 0; cnt < 7; cnt++) {
+ if (serial_write(serial, req, strlen(req)) == -1) {
+ sr_err("Unable to send identification request: %d %s.",
+ errno, strerror(errno));
+ return NULL;
+ }
+ len = BUF_MAX;
+ serial_readline(serial, &buf, &len, 1500);
+ if (!len)
+ continue;
+ buf[BUF_MAX-1] = '\0';
+
+ /* Match id string, e.g. "1834 065 V1.06,IF V1.02" (DM950) */
+ if (g_regex_match_simple("^1834 [^,]*,IF V*", (char*)buf,0,0)) {
+ auxtype = xgittoint(buf[7]);
+ // TODO: Will this work with non-DM950?
+ snprintf(fmttype, sizeof(fmttype), "DM9%d0", auxtype);
+ sr_spew("Norma %s DMM %s detected!", fmttype, &buf[9]);
+
+ if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
+ "Norma", fmttype, buf + 9)))
+ return NULL;
+ if (!(devc = g_try_malloc0(sizeof(*devc)))) {
+ sr_err("Device context malloc failed.");
+ return NULL;
+ }
+ devc->type = auxtype;
+ devc->version = g_strdup(&buf[9]);
+ devc->elapsed_msec = g_timer_new();
+
+ sdi->conn = serial;
+ sdi->priv = devc;
+ sdi->driver = di;
+ if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE,
+ "P1")))
+ return NULL;
+ sdi->probes = g_slist_append(sdi->probes, probe);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+ break;
+ }
+ /* The interface of the DM9x0 contains a cap that needs to
+ charge for up to 10s before the interface works, if not powered
+ externally. Therefore wait a little to improve chances. */
+ if (cnt == 3) {
+ sr_info("Waiting 5s to allow interface to settle.");
+ g_usleep(5 * 1000 * 1000);
+ }
+ }
+
+ g_free(buf);
+
+ serial_close(serial);
+ if (!devices)
+ sr_serial_dev_inst_free(serial);
return devices;
}
+
static GSList *dev_list(void)
{
return ((struct drv_context *)(di->priv))->instances;
}
+
static int dev_clear(void)
{
return std_dev_clear(di, NULL);
}
+
static int dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_serial_dev_inst *serial;
- /* TODO: get handle from sdi->conn and open it. */
+ serial = sdi->conn;
+ if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
+ return SR_ERR;
sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
+
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_serial_dev_inst *serial;
+ struct dev_context *devc;
- /* TODO: get handle from sdi->conn and close it. */
+ serial = sdi->conn;
+ if (serial && serial->fd != -1) {
+ serial_close(serial);
+ sdi->status = SR_ST_INACTIVE;
+ }
- sdi->status = SR_ST_INACTIVE;
+ // Free dynamically allocated resources.
+ if ((devc = sdi->priv) && devc->version) {
+ g_free(devc->version);
+ devc->version = NULL;
+ g_timer_destroy(devc->elapsed_msec);
+ }
return SR_OK;
}
+
static int cleanup(void)
{
- dev_clear();
-
- /* TODO: free other driver resources, if any. */
-
- return SR_OK;
+ return dev_clear();
}
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
-{
- int ret;
-
- (void)sdi;
- (void)data;
-
- ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
{
- int ret;
-
- (void)data;
+ struct dev_context *devc;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- ret = SR_OK;
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_MSEC:
+ /* TODO: not yet implemented */
+ if (g_variant_get_uint64(data) == 0) {
+ sr_err("LIMIT_MSEC can't be 0.");
+ return SR_ERR;
+ }
+ devc->limit_msec = g_variant_get_uint64(data);
+ sr_dbg("Setting time limit to %" PRIu64 "ms.",
+ devc->limit_msec);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ sr_dbg("Setting sample limit to %" PRIu64 ".",
+ devc->limit_samples);
+ break;
default:
- ret = SR_ERR_NA;
+ return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
+
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
{
- int ret;
-
(void)sdi;
- (void)data;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ 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;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
+
static int dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+
(void)sdi;
(void)cb_data;
+ if (!sdi || !cb_data || !(devc = sdi->priv))
+ return SR_ERR_BUG;
+
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ devc->cb_data = cb_data;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Start timer, if required. */
+ if (devc->limit_msec)
+ g_timer_start(devc->elapsed_msec);
+
+ /* Poll every 100ms, or whenever some data comes in. */
+ serial = sdi->conn;
+ sr_source_add(serial->fd, G_IO_IN, 100, norma_dmm_receive_data,
+ (void *)sdi);
return SR_OK;
}
+
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ struct dev_context *devc;
- /* TODO: stop acquisition. */
+ /* Stop timer, if required. */
+ if (sdi && (devc = sdi->priv) && devc->limit_msec)
+ g_timer_stop(devc->elapsed_msec);
- return SR_OK;
+ return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
+ sdi->conn, LOG_PREFIX);
}
+
SR_PRIV struct sr_dev_driver norma_dmm_driver_info = {
.name = "norma-dmm",
- .longname = "norma-dmm",
+ .longname = "Norma DM910..950, Siemens B1024..1028 DMMs",
.api_version = 1,
.init = init,
.cleanup = cleanup,
.scan = scan,
.dev_list = dev_list,
.dev_clear = dev_clear,
- .config_get = config_get,
+ .config_get = NULL,
.config_set = config_set,
.config_list = config_list,
.dev_open = dev_open,
projects / libsigrok.git / blobdiff