BLAHAJ
/
libsigrok
10
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

LA8: probeconfig/trigger support. 

This should make proper trigger support work for ChronoVu LA8.
This commit is contained in:
Uwe Hermann 2011-04-17 10:11:52 +02:00
parent 4af22da595
commit ecaf59db8d
1 changed files with 63 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
hardware/chronovu-la8/chronovu-la8.c
View File

@ -19,6 +19,7 @@
*/
#include <ftdi.h>
#include <glib.h>
#include <sigrok.h>
#include <sigrok-internal.h>
@ -396,6 +397,63 @@ static int la8_reset(struct la8 *la8)
return SR_OK;
}
static int configure_probes(struct la8 *la8, GSList *probes)
{
struct sr_probe *probe;
GSList *l;
uint8_t probe_bit;
char *tc;
la8->trigger_pattern = 0;
la8->trigger_mask = 0; /* Default to "don't care" for all probes. */
for (l = probes; l; l = l->next) {
probe = (struct sr_probe *)l->data;
if (!probe) {
sr_err("la8: %s: probe was NULL", __func__);
return SR_ERR;
}
/* Skip disabled probes. */
if (!probe->enabled)
continue;
/* Skip (enabled) probes with no configured trigger. */
if (!probe->trigger)
continue;
/* Note: Must only be run if probe->trigger != NULL. */
if (probe->index < 0 || probe->index > 7) {
sr_err("la8: %s: invalid probe index %d, must be "
"between 0 and 7", __func__, probe->index);
return SR_ERR;
}
probe_bit = (1 << (probe->index - 1));
/* Configure the probe's trigger mask and trigger pattern. */
for (tc = probe->trigger; tc && *tc; tc++) {
la8->trigger_mask |= probe_bit;
/* Sanity check, LA8 only supports low/high trigger. */
if (*tc != '0' && *tc != '1') {
sr_err("la8: %s: invalid trigger '%c', only "
"'0'/'1' supported", __func__, *tc);
return SR_ERR;
}
if (*tc == '1')
la8->trigger_pattern |= probe_bit;
}
}
sr_dbg("la8: %s: trigger_mask = 0x%x, trigger_pattern = 0x%x",
__func__, la8->trigger_mask, la8->trigger_pattern);
return SR_OK;
}
static int hw_init(const char *deviceinfo)
{
int ret;
@ -730,10 +788,10 @@ static int hw_set_configuration(int device_index, int capability, void *value)
sr_dbg("la8: SAMPLERATE = %" PRIu64, la8->cur_samplerate);
break;
case SR_HWCAP_PROBECONFIG:
/* Nothing to do, but this entry must exist. Fix this. */
/* TODO? */
sr_dbg("la8: %s: SR_HWCAP_PROBECONFIG called", __func__);
return SR_OK;
if (configure_probes(la8, (GSList *)value) != SR_OK) {
sr_err("la8: %s: probe config failed", __func__);
return SR_ERR;
}
break;
case SR_HWCAP_LIMIT_MSEC:
if (*(uint64_t *)value == 0) {
@ -842,6 +900,7 @@ static int receive_data(int fd, int revents, void *user_data)
/* Get one block of data (4096 bytes). */
if ((ret = la8_read_block(la8)) < 0) {
sr_warn("la8: %s: la8_read_block error: %d", __func__, ret);
hw_stop_acquisition(sdi->index, user_data);
return FALSE;
}