SR_PRIV int rigol_ds1xx2_get_dev_cfg(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
char *t_s, *cmd;
int i, res;
devc = sdi->priv;
/* Analog channel state. */
if (get_cfg_string(sdi, ":CHAN1:DISP?", &t_s) != SR_OK)
return SR_ERR;
devc->analog_channels[0] = !strcmp(t_s, "ON") ? TRUE : FALSE;
g_free(t_s);
if (get_cfg_string(sdi, ":CHAN2:DISP?", &t_s) != SR_OK)
return SR_ERR;
devc->analog_channels[1] = !strcmp(t_s, "ON") ? TRUE : FALSE;
g_free(t_s);
sr_dbg("Current analog channel state CH1 %s CH2 %s",
devc->analog_channels[0] ? "on" : "off",
devc->analog_channels[1] ? "on" : "off");
/* Digital channel state. */
if (devc->has_digital) {
sr_dbg("Current digital channel state:");
for (i = 0; i < 16; i++) {
cmd = g_strdup_printf(":DIG%d:TURN?", i);
res = get_cfg_string(sdi, cmd, &t_s);
g_free(cmd);
if (res != SR_OK)
return SR_ERR;
devc->digital_channels[i] = !strcmp(t_s, "ON") ? TRUE : FALSE;
g_free(t_s);
sr_dbg("D%d: %s", i, devc->digital_channels[i] ? "on" : "off");
}
}
/* Timebase. */
if (get_cfg_float(sdi, ":TIM:SCAL?", &devc->timebase) != SR_OK)
return SR_ERR;
sr_dbg("Current timebase %f", devc->timebase);
/* Vertical gain. */
if (get_cfg_float(sdi, ":CHAN1:SCAL?", &devc->vdiv[0]) != SR_OK)
return SR_ERR;
if (get_cfg_float(sdi, ":CHAN2:SCAL?", &devc->vdiv[1]) != SR_OK)
return SR_ERR;
sr_dbg("Current vertical gain CH1 %f CH2 %f", devc->vdiv[0], devc->vdiv[1]);
/* Vertical offset. */
if (get_cfg_float(sdi, ":CHAN1:OFFS?", &devc->vert_offset[0]) != SR_OK)
return SR_ERR;
if (get_cfg_float(sdi, ":CHAN2:OFFS?", &devc->vert_offset[1]) != SR_OK)
return SR_ERR;
sr_dbg("Current vertical offset CH1 %f CH2 %f", devc->vert_offset[0],
devc->vert_offset[1]);
/* Coupling. */
if (get_cfg_string(sdi, ":CHAN1:COUP?", &devc->coupling[0]) != SR_OK)
return SR_ERR;
if (get_cfg_string(sdi, ":CHAN2:COUP?", &devc->coupling[1]) != SR_OK)
return SR_ERR;
sr_dbg("Current coupling CH1 %s CH2 %s", devc->coupling[0],
devc->coupling[1]);
/* Trigger source. */
if (get_cfg_string(sdi, ":TRIG:EDGE:SOUR?", &devc->trigger_source) != SR_OK)
return SR_ERR;
sr_dbg("Current trigger source %s", devc->trigger_source);
/* Horizontal trigger position. */
if (get_cfg_float(sdi, ":TIM:OFFS?", &devc->horiz_triggerpos) != SR_OK)
return SR_ERR;
sr_dbg("Current horizontal trigger position %f", devc->horiz_triggerpos);
/* Trigger slope. */
if (get_cfg_string(sdi, ":TRIG:EDGE:SLOP?", &devc->trigger_slope) != SR_OK)
return SR_ERR;
sr_dbg("Current trigger slope %s", devc->trigger_slope);
return SR_OK;
}
static apr_status_t init_filter_instance(ap_filter_t *f)
{
ef_ctx_t *ctx;
ef_dir_t *dc;
apr_status_t rv;
f->ctx = ctx = apr_pcalloc(f->r->pool, sizeof(ef_ctx_t));
dc = ap_get_module_config(f->r->per_dir_config,
&ext_filter_module);
ctx->dc = dc;
/* look for the user-defined filter */
ctx->filter = find_filter_def(f->r->server, f->frec->name);
if (!ctx->filter) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, f->r,
"couldn't find definition of filter '%s'",
f->frec->name);
return APR_EINVAL;
}
ctx->p = f->r->pool;
if (ctx->filter->intype &&
ctx->filter->intype != INTYPE_ALL) {
const char *ctypes;
if (ctx->filter->mode == INPUT_FILTER) {
ctypes = apr_table_get(f->r->headers_in, "Content-Type");
}
else {
ctypes = f->r->content_type;
}
if (ctypes) {
const char *ctype = ap_getword(f->r->pool, &ctypes, ';');
if (strcasecmp(ctx->filter->intype, ctype)) {
/* wrong IMT for us; don't mess with the output */
ctx->noop = 1;
}
}
else {
ctx->noop = 1;
}
}
if (ctx->filter->enable_env &&
!apr_table_get(f->r->subprocess_env, ctx->filter->enable_env)) {
/* an environment variable that enables the filter isn't set; bail */
ctx->noop = 1;
}
if (ctx->filter->disable_env &&
apr_table_get(f->r->subprocess_env, ctx->filter->disable_env)) {
/* an environment variable that disables the filter is set; bail */
ctx->noop = 1;
}
if (!ctx->noop) {
rv = init_ext_filter_process(f);
if (rv != APR_SUCCESS) {
return rv;
}
if (ctx->filter->outtype &&
ctx->filter->outtype != OUTTYPE_UNCHANGED) {
ap_set_content_type(f->r, ctx->filter->outtype);
}
if (ctx->filter->preserves_content_length != 1) {
/* nasty, but needed to avoid confusing the browser
*/
apr_table_unset(f->r->headers_out, "Content-Length");
}
}
if (dc->debug >= DBGLVL_SHOWOPTIONS) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, f->r,
"%sfiltering `%s' of type `%s' through `%s', cfg %s",
ctx->noop ? "NOT " : "",
f->r->uri ? f->r->uri : f->r->filename,
f->r->content_type ? f->r->content_type : "(unspecified)",
ctx->filter->command,
get_cfg_string(dc, ctx->filter, f->r->pool));
}
return APR_SUCCESS;
}
