static int config_set(int id, GVariant *data, struct sr_dev_inst *sdi,
struct sr_channel *ch,
const struct sr_channel_group *cg)
{
uint16_t i, j;
int ret;
const char *stropt;
struct sr_channel *probe;
uint64_t tmp_u64;
(void) cg;
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);
devc->samples_counter = 0;
devc->pre_index = 0;
sr_dbg("%s: setting samplerate to %" PRIu64, __func__,
devc->cur_samplerate);
ret = SR_OK;
} else if (id == SR_CONF_LIMIT_SAMPLES) {
devc->limit_msec = 0;
devc->limit_samples = g_variant_get_uint64(data);
devc->limit_samples_show = devc->limit_samples;
if (sdi->mode == DSO && en_ch_num(sdi) == 1) {
devc->limit_samples /= 2;
}
sr_dbg("%s: setting limit_samples to %" PRIu64, __func__,
devc->limit_samples);
ret = SR_OK;
} else if (id == SR_CONF_LIMIT_MSEC) {
devc->limit_msec = g_variant_get_uint64(data);
devc->limit_samples = 0;
devc->limit_samples_show = devc->limit_samples;
sr_dbg("%s: setting limit_msec to %" PRIu64, __func__,
devc->limit_msec);
ret = SR_OK;
} else if (id == SR_CONF_DEVICE_MODE) {
sdi->mode = g_variant_get_int16(data);
ret = SR_OK;
if (sdi->mode == LOGIC) {
sr_dev_probes_free(sdi);
for (i = 0; probe_names[i]; i++) {
if (!(probe = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
probe_names[i])))
ret = SR_ERR;
else
sdi->channels = g_slist_append(sdi->channels, probe);
}
devc->cur_samplerate = SR_MHZ(1);
devc->limit_samples = SR_MB(1);
devc->limit_samples_show = devc->limit_samples;
} else if (sdi->mode == DSO) {
sr_dev_probes_free(sdi);
for (i = 0; i < DEMO_MAX_DSO_PROBES_NUM; i++) {
if (!(probe = sr_channel_new(i, SR_CHANNEL_DSO, TRUE,
probe_names[i])))
ret = SR_ERR;
else {
probe->vdiv = 1000;
probe->vfactor = 1;
probe->coupling = SR_AC_COUPLING;
probe->trig_value = 0x80;
probe->vpos = (probe->index == 0 ? 0.5 : -0.5)*probe->vdiv;
sdi->channels = g_slist_append(sdi->channels, probe);
probe->ms_show = TRUE;
for (j = DSO_MS_BEGIN; j < DSO_MS_END; j++)
probe->ms_en[j] = default_ms_en[j];
}
}
devc->cur_samplerate = DEMO_MAX_DSO_SAMPLERATE / DEMO_MAX_DSO_PROBES_NUM;
devc->limit_samples = DEMO_MAX_DSO_DEPTH / DEMO_MAX_DSO_PROBES_NUM;
devc->limit_samples_show = devc->limit_samples;
} else if (sdi->mode == ANALOG) {
sr_dev_probes_free(sdi);
for (i = 0; i < DS_MAX_ANALOG_PROBES_NUM; i++) {
if (!(probe = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE,
probe_names[i])))
ret = SR_ERR;
else
sdi->channels = g_slist_append(sdi->channels, probe);
}
devc->cur_samplerate = SR_HZ(100);
devc->limit_samples = SR_KB(1);
devc->limit_samples_show = devc->limit_samples;
} else {
ret = SR_ERR;
}
sr_dbg("%s: setting mode to %d", __func__, sdi->mode);
}else if (id == SR_CONF_PATTERN_MODE) {
stropt = g_variant_get_string(data, NULL);
ret = SR_OK;
if (!strcmp(stropt, pattern_strings[PATTERN_SINE])) {
devc->sample_generator = PATTERN_SINE;
} else if (!strcmp(stropt, pattern_strings[PATTERN_SQUARE])) {
devc->sample_generator = PATTERN_SQUARE;
} else if (!strcmp(stropt, pattern_strings[PATTERN_TRIANGLE])) {
devc->sample_generator = PATTERN_TRIANGLE;
} else if (!strcmp(stropt, pattern_strings[PATTERN_SAWTOOTH])) {
devc->sample_generator = PATTERN_SAWTOOTH;
} else if (!strcmp(stropt, pattern_strings[PATTERN_RANDOM])) {
devc->sample_generator = PATTERN_RANDOM;
} else {
ret = SR_ERR;
}
sr_dbg("%s: setting pattern to %d",
__func__, devc->sample_generator);
} else if (id == SR_CONF_MAX_HEIGHT) {
stropt = g_variant_get_string(data, NULL);
ret = SR_OK;
for (i = 0; i < ARRAY_SIZE(maxHeights); i++) {
if (!strcmp(stropt, maxHeights[i])) {
devc->max_height = i;
break;
}
}
sr_dbg("%s: setting Signal Max Height to %d",
__func__, devc->max_height);
} else if (id == SR_CONF_INSTANT) {
devc->instant = g_variant_get_boolean(data);
sr_dbg("%s: setting INSTANT mode to %d", __func__,
devc->instant);
ret = SR_OK;
} else if (id == SR_CONF_HORIZ_TRIGGERPOS) {
ret = SR_OK;
} else if (id == SR_CONF_TRIGGER_HOLDOFF) {
ret = SR_OK;
} else if (id == SR_CONF_TRIGGER_MARGIN) {
ret = SR_OK;
} else if (id == SR_CONF_EN_CH) {
ch->enabled = g_variant_get_boolean(data);
sr_dbg("%s: setting ENABLE of channel %d to %d", __func__,
ch->index, ch->enabled);
ret = SR_OK;
} else if (id == SR_CONF_DATALOCK) {
devc->data_lock = g_variant_get_boolean(data);
sr_dbg("%s: setting data lock to %d", __func__,
devc->data_lock);
ret = SR_OK;
} else if (id == SR_CONF_VDIV) {
tmp_u64 = g_variant_get_uint64(data);
ch->vpos = (tmp_u64 * 1.0 / ch->vdiv) * ch->vpos;
ch->vdiv = tmp_u64;
sr_dbg("%s: setting VDIV of channel %d to %" PRIu64, __func__,
ch->index, ch->vdiv);
ret = SR_OK;
} else if (id == SR_CONF_FACTOR) {
ch->vfactor = g_variant_get_uint64(data);
sr_dbg("%s: setting FACTOR of channel %d to %" PRIu64, __func__,
ch->index, ch->vfactor);
ret = SR_OK;
} else if (id == SR_CONF_VPOS) {
//ch->vpos = g_variant_get_double(data);
sr_dbg("%s: setting VPOS of channel %d to %lf", __func__,
ch->index, ch->vpos);
ret = SR_OK;
} else if (id == SR_CONF_TIMEBASE) {
devc->timebase = g_variant_get_uint64(data);
sr_dbg("%s: setting TIMEBASE to %" PRIu64, __func__,
devc->timebase);
ret = SR_OK;
} else if (id == SR_CONF_COUPLING) {
ch->coupling = g_variant_get_byte(data);
sr_dbg("%s: setting AC COUPLING of channel %d to %d", __func__,
ch->index, ch->coupling);
ret = SR_OK;
} else if (id == SR_CONF_TRIGGER_SOURCE) {
devc->trigger_source = g_variant_get_byte(data);
sr_dbg("%s: setting Trigger Source to %d",
__func__, devc->trigger_source);
ret = SR_OK;
} else if (id == SR_CONF_TRIGGER_SLOPE) {
devc->trigger_slope = g_variant_get_byte(data);
sr_dbg("%s: setting Trigger Slope to %d",
__func__, devc->trigger_slope);
ret = SR_OK;
} else if (id == SR_CONF_TRIGGER_VALUE) {
ch->trig_value = g_variant_get_byte(data);
sr_dbg("%s: setting channel %d Trigger Value to %d",
__func__, ch->index, ch->trig_value);
ret = SR_OK;
} else {
ret = SR_ERR_NA;
}
return ret;
}
static void samples_generator(uint16_t *buf, uint64_t size,
const struct sr_dev_inst *sdi,
struct dev_context *devc)
{
uint64_t i, pre0_i, pre1_i;
GSList *l;
struct sr_channel *probe;
int offset;
unsigned int start_rand;
const uint64_t span = DEMO_MAX_DSO_SAMPLERATE / devc->cur_samplerate;
const uint64_t len = ARRAY_SIZE(sinx) - 1;
const int *pre_buf;
uint16_t tmp_u16 = 0;
unsigned int ch_num = en_ch_num(sdi) ? en_ch_num(sdi) : 1;
switch (devc->sample_generator) {
case PATTERN_SINE: /* Sine */
pre_buf = sinx;
break;
case PATTERN_SQUARE:
pre_buf = sqrx;
break;
case PATTERN_TRIANGLE:
pre_buf = trix;
break;
case PATTERN_SAWTOOTH:
pre_buf = sawx;
break;
case PATTERN_RANDOM:
pre_buf = ranx;
break;
default:
pre_buf = sinx;
break;
}
if (devc->samples_counter == devc->limit_samples &&
size != devc->limit_samples) {
for (i = 0; i < devc->limit_samples; i++)
*(buf + i) = *(buf + ((i + size)%devc->limit_samples));
} else if (sdi->mode == LOGIC) {
for (i = 0; i < size; i++) {
//index = (i/10/g_slist_length(sdi->channels)+start_rand)%len;
//*(buf + i) = (uint16_t)(((const_dc+pre_buf[index]) << 8) + (const_dc+pre_buf[index]));
tmp_u16 = 0;
if (i < ch_num*4)
*(buf + i) = tmp_u16;
else if (i % 4 == 0) {
start_rand = rand() % (ch_num * 4);
if (start_rand == (i/4 % ch_num))
tmp_u16 = 0xffff;
*(buf + i) = tmp_u16 ? ~*(buf + i - ch_num*4) : *(buf + i - ch_num*4);
} else {
*(buf + i) = *(buf + i - 1);
}
}
} else if (sdi->mode == ANALOG) {
for (i = 0; i < size; i++) {
if (rand() % (devc->limit_samples / 100) == 0)
*(buf + i) = 0x4000 + rand() % 0x8000;
else if (rand() % (devc->limit_samples / 1000) == 0)
*(buf + i) = 0x7000 + rand() % 0x2000;
else
*(buf + i) = 0x8000;
}
} else {
if (devc->pre_index == 0) {
devc->mstatus.ch0_max = 0;
devc->mstatus.ch0_min = 255;
devc->mstatus.ch1_max = 0;
devc->mstatus.ch1_min = 255;
devc->mstatus.ch0_period = 0;
devc->mstatus.ch0_pcnt = 1;
devc->mstatus.ch1_period = 0;
devc->mstatus.ch1_pcnt = 1;
}
memset(buf+devc->pre_index, 0, size*sizeof(uint16_t));
for (l = sdi->channels; l; l = l->next) {
start_rand = devc->pre_index == 0 ? rand()%len : 0;
probe = (struct sr_channel *)l->data;
offset = ceil((0.5 - (probe->vpos/probe->vdiv/10.0)) * 255);
//offset = 128;
pre0_i = devc->pre_index;
pre1_i = devc->pre_index;
for (i = devc->pre_index; i < devc->pre_index + size; i++) {
if (probe->coupling == SR_DC_COUPLING) {
*(buf + i) += (uint8_t)(offset + (1000.0/probe->vdiv) * (pre_buf[(i*span+start_rand)%len] - const_dc)) << (probe->index * 8);
} else if (probe->coupling == SR_AC_COUPLING) {
*(buf + i) += (uint8_t)(offset + (1000.0/probe->vdiv) * pre_buf[(i*span+start_rand)%len]) << (probe->index * 8);
} else {
*(buf + i) += offset << (probe->index * 8);
}
if (probe->index == 0) {
devc->mstatus.ch0_max = MAX(devc->mstatus.ch0_max, (*(buf + i) & 0x00ff));
devc->mstatus.ch0_min = MIN(devc->mstatus.ch0_min, (*(buf + i) & 0x00ff));
if (i > devc->pre_index &&
pre_buf[(i*span+start_rand)%len] < 0 &&
pre_buf[((i-1)*span+start_rand)%len] > 0) {
devc->mstatus.ch0_period = 2*(i - pre0_i)*pow(10, 8)/DEMO_MAX_DSO_SAMPLERATE;
pre0_i = i;
}
} else {
devc->mstatus.ch1_max = MAX(devc->mstatus.ch1_max, ((*(buf + i) & 0xff00) >> 8));
devc->mstatus.ch1_min = MIN(devc->mstatus.ch1_min, ((*(buf + i) & 0xff00) >> 8));
if (i > devc->pre_index &&
pre_buf[(i*span+start_rand)%len] < 0 &&
pre_buf[((i-1)*span+start_rand)%len] > 0) {
devc->mstatus.ch1_period = 2*(i - pre1_i)*pow(10, 8)/DEMO_MAX_DSO_SAMPLERATE;
pre1_i = i;
}
}
}
}
for (l = sdi->channels; l; l = l->next) {
probe = (struct sr_channel *)l->data;
if (!probe->enabled) {
devc->mstatus.ch1_max = MAX(devc->mstatus.ch0_max, devc->mstatus.ch1_max);
devc->mstatus.ch1_min = MIN(devc->mstatus.ch0_min, devc->mstatus.ch1_min);
devc->mstatus.ch0_max = MAX(devc->mstatus.ch0_max, devc->mstatus.ch1_max);
devc->mstatus.ch0_min = MIN(devc->mstatus.ch0_min, devc->mstatus.ch1_min);
break;
}
}
}
}