#include "libsigrok.h"
#include "libsigrok-internal.h"
-/* Message logging helpers with driver-specific prefix string. */
-#define DRIVER_LOG_DOMAIN "demo: "
-#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
-#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
+/* Message logging helpers with subsystem-specific prefix string. */
+#define LOG_PREFIX "demo: "
+#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
+#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
+#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
+#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
+#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
+#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
/* TODO: Number of probes should be configurable. */
#define NUM_PROBES 8
static int hw_init(struct sr_context *sr_ctx)
{
- return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
+ return std_hw_init(sr_ctx, di, LOG_PREFIX);
}
static GSList *hw_scan(GSList *options)
static int hw_dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
-
- /* Nothing needed so far. */
+ sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int hw_dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
-
- /* Nothing needed so far. */
+ sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
struct dev_context *const devc = sdi->priv;
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
if (id == SR_CONF_SAMPLERATE) {
devc->cur_samplerate = g_variant_get_uint64(data);
sr_dbg("%s: setting samplerate to %" PRIu64, __func__,
{
struct dev_context *const devc = sdi->priv;
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
devc->cb_data = cb_data;
devc->samples_counter = 0;
40, receive_data, devc);
/* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
+ std_session_send_df_header(cb_data, LOG_PREFIX);
/* We use this timestamp to decide how many more samples to send. */
devc->starttime = g_get_monotonic_time();