#define LOG_PREFIX "demo"
-#define DEFAULT_NUM_LOGIC_PROBES 8
-#define DEFAULT_NUM_ANALOG_PROBES 4
+#define DEFAULT_NUM_LOGIC_CHANNELS 8
+#define DEFAULT_NUM_ANALOG_CHANNELS 4
/* The size in bytes of chunks to send through the session bus. */
#define LOGIC_BUFSIZE 4096
/* Logic patterns we can generate. */
enum {
/**
- * Spells "sigrok" across 8 probes using '0's (with '1's as
+ * Spells "sigrok" across 8 channels using '0's (with '1's as
* "background") when displayed using the 'bits' output format.
- * The pattern is repeasted every 8 probes, shifted to the right
+ * The pattern is repeated every 8 channels, shifted to the right
* in time by one bit.
*/
PATTERN_SIGROK,
- /** Pseudo-random values on all probes. */
+ /** Pseudo-random values on all channels. */
PATTERN_RANDOM,
/**
- * Incrementing number across 8 probes. The pattern is repeasted
- * every 8 probes, shifted to the right in time by one bit.
+ * Incrementing number across 8 channels. The pattern is repeated
+ * every 8 channels, shifted to the right in time by one bit.
*/
PATTERN_INC,
- /** All probes have a low logic state. */
+ /** All channels have a low logic state. */
PATTERN_ALL_LOW,
- /** All probes have a high logic state. */
+ /** All channels have a high logic state. */
PATTERN_ALL_HIGH,
};
int64_t starttime;
uint64_t step;
/* Logic */
- int32_t num_logic_probes;
+ int32_t num_logic_channels;
unsigned int logic_unitsize;
- /* There is only ever one logic probe group, so its pattern goes here. */
+ /* There is only ever one logic channel group, so its pattern goes here. */
uint8_t logic_pattern;
unsigned char logic_data[LOGIC_BUFSIZE];
/* Analog */
- int32_t num_analog_probes;
- GSList *analog_probe_groups;
+ int32_t num_analog_channels;
+ GSList *analog_channel_groups;
};
static const int32_t scanopts[] = {
- SR_CONF_NUM_LOGIC_PROBES,
- SR_CONF_NUM_ANALOG_PROBES,
+ SR_CONF_NUM_LOGIC_CHANNELS,
+ SR_CONF_NUM_ANALOG_CHANNELS,
};
static const int devopts[] = {
SR_CONF_LIMIT_MSEC,
};
-static const int devopts_pg[] = {
+static const int devopts_cg[] = {
SR_CONF_PATTERN_MODE,
};
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
-static int dev_clear(void)
-{
- return std_dev_clear(di, NULL);
-}
-
static int init(struct sr_context *sr_ctx)
{
return std_init(sr_ctx, di, LOG_PREFIX);
}
-static void generate_analog_pattern(const struct sr_probe_group *probe_group, uint64_t sample_rate)
+static void generate_analog_pattern(const struct sr_channel_group *cg, uint64_t sample_rate)
{
struct analog_gen *ag;
double t, frequency;
unsigned int num_samples, i;
int last_end;
- ag = probe_group->priv;
+ ag = cg->priv;
num_samples = ANALOG_BUFSIZE / sizeof(float);
- sr_dbg("Generating %s pattern for probe group %s",
- analog_pattern_str[ag->pattern],
- probe_group->name);
+ sr_dbg("Generating %s pattern for channel group %s",
+ analog_pattern_str[ag->pattern], cg->name);
switch (ag->pattern) {
case PATTERN_SQUARE:
break;
case PATTERN_SINE:
- frequency = sample_rate / ANALOG_SAMPLES_PER_PERIOD;
+ frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD;
/* Make sure the number of samples we put out is an integer
* multiple of our period size */
break;
case PATTERN_TRIANGLE:
- frequency = sample_rate / ANALOG_SAMPLES_PER_PERIOD;
+ frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD;
while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0)
num_samples--;
break;
case PATTERN_SAWTOOTH:
- frequency = sample_rate / ANALOG_SAMPLES_PER_PERIOD;
+ frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD;
while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0)
num_samples--;
struct drv_context *drvc;
struct dev_context *devc;
struct sr_dev_inst *sdi;
- struct sr_probe *probe;
- struct sr_probe_group *pg;
+ struct sr_channel *ch;
+ struct sr_channel_group *cg;
struct sr_config *src;
struct analog_gen *ag;
GSList *devices, *l;
- int num_logic_probes, num_analog_probes, pattern, i;
- char probe_name[16];
+ int num_logic_channels, num_analog_channels, pattern, i;
+ char channel_name[16];
drvc = di->priv;
- num_logic_probes = DEFAULT_NUM_LOGIC_PROBES;
- num_analog_probes = DEFAULT_NUM_ANALOG_PROBES;
+ num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS;
+ num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS;
for (l = options; l; l = l->next) {
src = l->data;
switch (src->key) {
- case SR_CONF_NUM_LOGIC_PROBES:
- num_logic_probes = g_variant_get_int32(src->data);
+ case SR_CONF_NUM_LOGIC_CHANNELS:
+ num_logic_channels = g_variant_get_int32(src->data);
break;
- case SR_CONF_NUM_ANALOG_PROBES:
- num_analog_probes = g_variant_get_int32(src->data);
+ case SR_CONF_NUM_ANALOG_CHANNELS:
+ num_analog_channels = g_variant_get_int32(src->data);
break;
}
}
devc->limit_samples = 0;
devc->limit_msec = 0;
devc->step = 0;
- devc->num_logic_probes = num_logic_probes;
- devc->logic_unitsize = (devc->num_logic_probes + 7) / 8;
+ devc->num_logic_channels = num_logic_channels;
+ devc->logic_unitsize = (devc->num_logic_channels + 7) / 8;
devc->logic_pattern = PATTERN_SIGROK;
- devc->num_analog_probes = num_analog_probes;
- devc->analog_probe_groups = NULL;
+ devc->num_analog_channels = num_analog_channels;
+ devc->analog_channel_groups = NULL;
- /* Logic probes, all in one probe group. */
- if (!(pg = g_try_malloc(sizeof(struct sr_probe_group))))
+ /* Logic channels, all in one channel group. */
+ if (!(cg = g_try_malloc(sizeof(struct sr_channel_group))))
return NULL;
- pg->name = g_strdup("Logic");
- pg->probes = NULL;
- pg->priv = NULL;
- for (i = 0; i < num_logic_probes; i++) {
- sprintf(probe_name, "D%d", i);
- if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, probe_name)))
+ cg->name = g_strdup("Logic");
+ cg->channels = NULL;
+ cg->priv = NULL;
+ for (i = 0; i < num_logic_channels; i++) {
+ sprintf(channel_name, "D%d", i);
+ if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name)))
return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
- pg->probes = g_slist_append(pg->probes, probe);
+ sdi->channels = g_slist_append(sdi->channels, ch);
+ cg->channels = g_slist_append(cg->channels, ch);
}
- sdi->probe_groups = g_slist_append(NULL, pg);
+ sdi->channel_groups = g_slist_append(NULL, cg);
- /* Analog probes, probe groups and pattern generators. */
+ /* Analog channels, channel groups and pattern generators. */
pattern = 0;
- for (i = 0; i < num_analog_probes; i++) {
- sprintf(probe_name, "A%d", i);
- if (!(probe = sr_probe_new(i + num_logic_probes,
- SR_PROBE_ANALOG, TRUE, probe_name)))
+ for (i = 0; i < num_analog_channels; i++) {
+ sprintf(channel_name, "A%d", i);
+ if (!(ch = sr_channel_new(i + num_logic_channels,
+ SR_CHANNEL_ANALOG, TRUE, channel_name)))
return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
+ sdi->channels = g_slist_append(sdi->channels, ch);
- /* Every analog probe gets its own probe group. */
- if (!(pg = g_try_malloc(sizeof(struct sr_probe_group))))
+ /* Every analog channel gets its own channel group. */
+ if (!(cg = g_try_malloc(sizeof(struct sr_channel_group))))
return NULL;
- pg->name = g_strdup(probe_name);
- pg->probes = g_slist_append(NULL, probe);
+ cg->name = g_strdup(channel_name);
+ cg->channels = g_slist_append(NULL, ch);
- /* Every probe group gets a generator struct. */
+ /* Every channel group gets a generator struct. */
if (!(ag = g_try_malloc(sizeof(struct analog_gen))))
return NULL;
- ag->packet.probes = pg->probes;
+ ag->packet.channels = cg->channels;
ag->packet.mq = 0;
ag->packet.mqflags = 0;
ag->packet.unit = SR_UNIT_VOLT;
ag->packet.data = ag->pattern_data;
ag->pattern = pattern;
- pg->priv = ag;
+ cg->priv = ag;
- sdi->probe_groups = g_slist_append(sdi->probe_groups, pg);
- devc->analog_probe_groups = g_slist_append(devc->analog_probe_groups, pg);
+ sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
+ devc->analog_channel_groups = g_slist_append(devc->analog_channel_groups, cg);
if (++pattern == ARRAY_SIZE(analog_pattern_str))
pattern = 0;
static int cleanup(void)
{
- return dev_clear();
+ return std_dev_clear(di, NULL);
}
static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_probe_group *probe_group)
+ const struct sr_channel_group *cg)
{
struct dev_context *devc;
- struct sr_probe *probe;
+ struct sr_channel *ch;
struct analog_gen *ag;
int pattern;
*data = g_variant_new_uint64(devc->limit_msec);
break;
case SR_CONF_PATTERN_MODE:
- if (!probe_group)
- return SR_ERR_PROBE_GROUP;
- probe = probe_group->probes->data;
- if (probe->type == SR_PROBE_LOGIC) {
+ if (!cg)
+ return SR_ERR_CHANNEL_GROUP;
+ ch = cg->channels->data;
+ if (ch->type == SR_CHANNEL_LOGIC) {
pattern = devc->logic_pattern;
*data = g_variant_new_string(logic_pattern_str[pattern]);
- } else if (probe->type == SR_PROBE_ANALOG) {
- ag = probe_group->priv;
+ } else if (ch->type == SR_CHANNEL_ANALOG) {
+ ag = cg->priv;
pattern = ag->pattern;
*data = g_variant_new_string(analog_pattern_str[pattern]);
} else
return SR_ERR_BUG;
break;
- case SR_CONF_NUM_LOGIC_PROBES:
- *data = g_variant_new_int32(devc->num_logic_probes);
+ case SR_CONF_NUM_LOGIC_CHANNELS:
+ *data = g_variant_new_int32(devc->num_logic_channels);
break;
- case SR_CONF_NUM_ANALOG_PROBES:
- *data = g_variant_new_int32(devc->num_analog_probes);
+ case SR_CONF_NUM_ANALOG_CHANNELS:
+ *data = g_variant_new_int32(devc->num_analog_channels);
break;
default:
return SR_ERR_NA;
}
static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_probe_group *probe_group)
+ const struct sr_channel_group *cg)
{
struct dev_context *devc;
struct analog_gen *ag;
- struct sr_probe *probe;
+ struct sr_channel *ch;
int pattern, ret;
unsigned int i;
const char *stropt;
sr_dbg("Setting time limit to %" PRIu64"ms", devc->limit_msec);
break;
case SR_CONF_PATTERN_MODE:
- if (!probe_group)
- return SR_ERR_PROBE_GROUP;
+ if (!cg)
+ return SR_ERR_CHANNEL_GROUP;
stropt = g_variant_get_string(data, NULL);
- probe = probe_group->probes->data;
+ ch = cg->channels->data;
pattern = -1;
- if (probe->type == SR_PROBE_LOGIC) {
+ if (ch->type == SR_CHANNEL_LOGIC) {
for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) {
if (!strcmp(stropt, logic_pattern_str[i])) {
pattern = i;
memset(devc->logic_data, 0xff, LOGIC_BUFSIZE);
sr_dbg("Setting logic pattern to %s",
logic_pattern_str[pattern]);
- } else if (probe->type == SR_PROBE_ANALOG) {
+ } else if (ch->type == SR_CHANNEL_ANALOG) {
for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) {
if (!strcmp(stropt, analog_pattern_str[i])) {
pattern = i;
}
if (pattern == -1)
return SR_ERR_ARG;
- sr_dbg("Setting analog pattern for probe group %s to %s",
- probe_group->name,
- analog_pattern_str[pattern]);
- ag = probe_group->priv;
+ sr_dbg("Setting analog pattern for channel group %s to %s",
+ cg->name, analog_pattern_str[pattern]);
+ ag = cg->priv;
ag->pattern = pattern;
} else
return SR_ERR_BUG;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_probe_group *probe_group)
+ const struct sr_channel_group *cg)
{
- struct sr_probe *probe;
+ struct sr_channel *ch;
GVariant *gvar;
GVariantBuilder gvb;
if (!sdi)
return SR_ERR_ARG;
- if (!probe_group) {
+ if (!cg) {
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
return SR_ERR_NA;
}
} else {
- probe = probe_group->probes->data;
+ ch = cg->channels->data;
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- devopts_pg, ARRAY_SIZE(devopts_pg), sizeof(int32_t));
+ devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(int32_t));
break;
case SR_CONF_PATTERN_MODE:
- if (probe->type == SR_PROBE_LOGIC)
+ if (ch->type == SR_CHANNEL_LOGIC)
*data = g_variant_new_strv(logic_pattern_str,
ARRAY_SIZE(logic_pattern_str));
- else if (probe->type == SR_PROBE_ANALOG)
+ else if (ch->type == SR_CHANNEL_ANALOG)
*data = g_variant_new_strv(analog_pattern_str,
ARRAY_SIZE(analog_pattern_str));
else
struct dev_context *devc;
struct sr_datafeed_packet packet;
struct sr_datafeed_logic logic;
- struct sr_probe_group *pg;
+ struct sr_channel_group *cg;
struct analog_gen *ag;
GSList *l;
uint64_t logic_todo, analog_todo, expected_samplenum, analog_samples, sending_now;
expected_samplenum = elapsed * devc->cur_samplerate / 1000000;
/* Of those, how many do we still have to send? */
- logic_todo = expected_samplenum - devc->logic_counter;
- analog_todo = expected_samplenum - devc->analog_counter;
-
- if (devc->limit_samples) {
- logic_todo = MIN(logic_todo, devc->limit_samples - devc->logic_counter);
- analog_todo = MIN(analog_todo, devc->limit_samples - devc->analog_counter);
- }
+ logic_todo = MIN(expected_samplenum, devc->limit_samples) - devc->logic_counter;
+ analog_todo = MIN(expected_samplenum, devc->limit_samples) - devc->analog_counter;
while (logic_todo || analog_todo) {
/* Logic */
- if (devc->num_logic_probes > 0 && logic_todo > 0) {
+ if (devc->num_logic_channels > 0 && logic_todo > 0) {
sending_now = MIN(logic_todo,
LOGIC_BUFSIZE / devc->logic_unitsize);
logic_generator(sdi, sending_now * devc->logic_unitsize);
devc->logic_counter += sending_now;
}
- /* Analog, one probe at a time */
- if (devc->num_analog_probes > 0 && analog_todo > 0) {
+ /* Analog, one channel at a time */
+ if (devc->num_analog_channels > 0 && analog_todo > 0) {
sending_now = 0;
- for (l = devc->analog_probe_groups; l; l = l->next) {
- pg = l->data;
- ag = pg->priv;
+ for (l = devc->analog_channel_groups; l; l = l->next) {
+ cg = l->data;
+ ag = cg->priv;
packet.type = SR_DF_ANALOG;
packet.payload = &ag->packet;
* help here as well */
analog_samples = MIN(analog_todo, ag->num_samples);
- /* Whichever probe group gets there first. */
+ /* Whichever channel group gets there first. */
sending_now = MAX(sending_now, analog_samples);
ag->packet.num_samples = analog_samples;
sr_session_send(sdi, &packet);
}
}
- if (devc->limit_samples &&
- devc->logic_counter >= devc->limit_samples &&
+ if (devc->logic_counter >= devc->limit_samples &&
devc->analog_counter >= devc->limit_samples) {
sr_dbg("Requested number of samples reached.");
dev_acquisition_stop(sdi, cb_data);
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: don't start without a sample limit set */
devc = sdi->priv;
+ if (devc->limit_samples == 0)
+ return SR_ERR;
devc->logic_counter = devc->analog_counter = 0;
/*
return SR_ERR;
}
- for (l = devc->analog_probe_groups; l; l = l->next) {
+ for (l = devc->analog_channel_groups; l; l = l->next) {
generate_analog_pattern(l->data, devc->cur_samplerate);
}
(void)cb_data;
devc = sdi->priv;
- sr_dbg("Stopping aquisition.");
+ sr_dbg("Stopping acquisition.");
sr_session_source_remove_channel(devc->channel);
g_io_channel_shutdown(devc->channel, FALSE, NULL);
.cleanup = cleanup,
.scan = scan,
.dev_list = dev_list,
- .dev_clear = dev_clear,
+ .dev_clear = NULL,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,