* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#define LOG_PREFIX "output/hex"
#define DEFAULT_SAMPLES_PER_LINE 74
+/*
+ * The string looks ugly with escape characters, here is the readable
+ * version: Use . and " for low and high bits, use \ and / to draw
+ * falling and rising edges respectively.
+ */
+#define DEFAULT_ASCII_CHARS ".\"\\/"
+
struct context {
- unsigned int num_enabled_channels;
- int spl;
- int bit_cnt;
- int spl_cnt;
+ size_t num_enabled_channels;
+ size_t spl;
+ size_t spl_cnt;
int trigger;
uint64_t samplerate;
int *channel_index;
- char **channel_names;
+ char **aligned_names;
+ size_t max_namelen;
char **line_values;
uint8_t *prev_sample;
gboolean header_done;
GString **lines;
- GString *header;
+ const char *charset;
+ gboolean edges;
};
static int init(struct sr_output *o, GHashTable *options)
struct context *ctx;
struct sr_channel *ch;
GSList *l;
- unsigned int i, j;
+ size_t j, max_namelen, alloc_line_len;
if (!o || !o->sdi)
return SR_ERR_ARG;
o->priv = ctx;
ctx->trigger = -1;
ctx->spl = g_variant_get_uint32(g_hash_table_lookup(options, "width"));
+ ctx->charset = g_strdup(g_variant_get_string(
+ g_hash_table_lookup(options, "charset"), NULL));
+ if (!ctx->charset || strlen(ctx->charset) < 2) {
+ g_free((gpointer)ctx->charset);
+ ctx->charset = g_strdup(DEFAULT_ASCII_CHARS);
+ }
+ ctx->edges = (strlen(ctx->charset) >= 4) ? TRUE : FALSE;
for (l = o->sdi->channels; l; l = l->next) {
ch = l->data;
continue;
ctx->num_enabled_channels++;
}
- ctx->channel_index = g_malloc(sizeof(int) * ctx->num_enabled_channels);
- ctx->channel_names = g_malloc(sizeof(char *) * ctx->num_enabled_channels);
- ctx->lines = g_malloc(sizeof(GString *) * ctx->num_enabled_channels);
- ctx->prev_sample = g_malloc(g_slist_length(o->sdi->channels));
+ ctx->channel_index = g_malloc0(sizeof(ctx->channel_index[0]) * ctx->num_enabled_channels);
+ ctx->aligned_names = g_malloc0(sizeof(ctx->aligned_names[0]) * ctx->num_enabled_channels);
+ ctx->lines = g_malloc0(sizeof(ctx->lines[0]) * ctx->num_enabled_channels);
+ ctx->prev_sample = g_malloc0(g_slist_length(o->sdi->channels));
+
+ /* Get the maximum length across all active logic channels. */
+ max_namelen = 0;
+ for (l = o->sdi->channels; l; l = l->next) {
+ ch = l->data;
+ if (ch->type != SR_CHANNEL_LOGIC)
+ continue;
+ if (!ch->enabled)
+ continue;
+ max_namelen = MAX(max_namelen, strlen(ch->name));
+ }
+ ctx->max_namelen = max_namelen;
+ alloc_line_len = ctx->max_namelen + 8 + ctx->spl;
j = 0;
- for (i = 0, l = o->sdi->channels; l; l = l->next, i++) {
+ for (l = o->sdi->channels; l; l = l->next) {
ch = l->data;
if (ch->type != SR_CHANNEL_LOGIC)
continue;
if (!ch->enabled)
continue;
+
ctx->channel_index[j] = ch->index;
- ctx->channel_names[j] = ch->name;
- ctx->lines[j] = g_string_sized_new(80);
- g_string_printf(ctx->lines[j], "%s:", ch->name);
+ ctx->aligned_names[j] = g_strdup_printf("%*s", (int)max_namelen, ch->name);
+
+ ctx->lines[j] = g_string_sized_new(alloc_line_len);
+ g_string_printf(ctx->lines[j], "%s:", ctx->aligned_names[j]);
+
j++;
}
struct context *ctx;
GVariant *gvar;
GString *header;
- int num_channels;
+ size_t num_channels;
char *samplerate_s;
ctx = o->priv;
}
header = g_string_sized_new(512);
- g_string_printf(header, "%s\n", PACKAGE_STRING);
+ g_string_printf(header, "%s %s\n", PACKAGE_NAME, sr_package_version_string_get());
num_channels = g_slist_length(o->sdi->channels);
- g_string_append_printf(header, "Acquisition with %d/%d channels",
+ g_string_append_printf(header, "Acquisition with %zu/%zu channels",
ctx->num_enabled_channels, num_channels);
if (ctx->samplerate != 0) {
samplerate_s = sr_samplerate_string(ctx->samplerate);
return header;
}
+static void maybe_add_trigger(struct context *ctx, GString *out)
+{
+ int offset;
+
+ if (ctx->trigger < 0)
+ return;
+ offset = ctx->trigger;
+ ctx->trigger = -1;
+
+ /*
+ * Sample data lines have one character per bit and
+ * no separator between bytes. Align trigger marker
+ * to this layout.
+ */
+ g_string_append_printf(out, "%*s:%*s %d\n",
+ (int)ctx->max_namelen, "T",
+ offset + 1, "^", offset);
+}
+
static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
GString **out)
{
const struct sr_config *src;
GSList *l;
struct context *ctx;
- int idx, offset, curbit, prevbit;
- uint64_t i, j;
- gchar *p, c;
+ size_t idx, i, j;
+ size_t num_samples;
+ const uint8_t *curr_sample;
+ size_t bytepos;
+ uint8_t bitmask, curbit, prevbit;
+ char c;
+ size_t charidx;
*out = NULL;
if (!o || !o->sdi)
if (!ctx->header_done) {
*out = gen_header(o);
ctx->header_done = TRUE;
- } else
+ } else {
*out = g_string_sized_new(512);
+ }
logic = packet->payload;
- for (i = 0; i <= logic->length - logic->unitsize; i += logic->unitsize) {
+ num_samples = logic->length / logic->unitsize;
+ curr_sample = logic->data;
+ while (num_samples--) {
ctx->spl_cnt++;
for (j = 0; j < ctx->num_enabled_channels; j++) {
idx = ctx->channel_index[j];
- p = logic->data + i + idx / 8;
- curbit = *p & (1 << (idx % 8));
- prevbit = (ctx->prev_sample[idx / 8] & ((uint8_t) 1 << (idx % 8)));
-
- c = curbit ? '"' : '.';
- if (ctx->spl_cnt > 1) {
- if (curbit < prevbit)
- c = '\\';
- else if (curbit > prevbit)
- c = '/';
+ bytepos = idx / 8;
+ bitmask = 1U << (idx % 8);
+ curbit = curr_sample[bytepos] & bitmask;
+ prevbit = ctx->prev_sample[bytepos] & bitmask;
+
+ charidx = curbit ? 1 : 0;
+ if (ctx->edges && ctx->spl_cnt > 1) {
+ if (curbit != prevbit)
+ charidx += 2;
}
+ c = ctx->charset[charidx];
g_string_append_c(ctx->lines[j], c);
if (ctx->spl_cnt == ctx->spl) {
/* Flush line buffers. */
g_string_append_len(*out, ctx->lines[j]->str, ctx->lines[j]->len);
g_string_append_c(*out, '\n');
- if (j == ctx->num_enabled_channels - 1 && ctx->trigger > -1) {
- offset = ctx->trigger + ctx->trigger / 8;
- g_string_append_printf(*out, "T:%*s^ %d\n", offset, "", ctx->trigger);
- ctx->trigger = -1;
- }
- g_string_printf(ctx->lines[j], "%s:", ctx->channel_names[j]);
+ if (j + 1 == ctx->num_enabled_channels)
+ maybe_add_trigger(ctx, *out);
+ g_string_printf(ctx->lines[j], "%s:", ctx->aligned_names[j]);
}
}
if (ctx->spl_cnt == ctx->spl)
/* Line buffers were already flushed. */
ctx->spl_cnt = 0;
- memcpy(ctx->prev_sample, logic->data + i, logic->unitsize);
+ memcpy(ctx->prev_sample, curr_sample, logic->unitsize);
+ curr_sample += logic->unitsize;
}
break;
case SR_DF_END:
g_string_append_len(*out, ctx->lines[i]->str, ctx->lines[i]->len);
g_string_append_c(*out, '\n');
}
+ maybe_add_trigger(ctx, *out);
}
break;
}
static int cleanup(struct sr_output *o)
{
struct context *ctx;
- unsigned int i;
+ size_t i;
if (!o)
return SR_ERR_ARG;
g_free(ctx->channel_index);
g_free(ctx->prev_sample);
- g_free(ctx->channel_names);
- for (i = 0; i < ctx->num_enabled_channels; i++)
+ for (i = 0; i < ctx->num_enabled_channels; i++) {
+ g_free(ctx->aligned_names[i]);
g_string_free(ctx->lines[i], TRUE);
+ }
+ g_free(ctx->aligned_names);
g_free(ctx->lines);
+ g_free((gpointer)ctx->charset);
g_free(ctx);
o->priv = NULL;
static struct sr_option options[] = {
{ "width", "Width", "Number of samples per line", NULL, NULL },
+ { "charset", "Charset", "Characters for 0/1 bits (and fall/rise edges)", NULL, NULL },
ALL_ZERO
};
if (!options[0].def) {
options[0].def = g_variant_new_uint32(DEFAULT_SAMPLES_PER_LINE);
g_variant_ref_sink(options[0].def);
+ options[1].def = g_variant_new_string(DEFAULT_ASCII_CHARS);
+ g_variant_ref_sink(options[1].def);
}
return options;
SR_PRIV struct sr_output_module output_ascii = {
.id = "ascii",
.name = "ASCII",
- .desc = "ASCII art",
+ .desc = "ASCII art logic data",
+ .exts = (const char*[]){"txt", NULL},
+ .flags = 0,
.options = get_options,
.init = init,
.receive = receive,
.cleanup = cleanup,
};
-
-
projects / libsigrok.git / blobdiff