-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2011 HÃ¥vard Espeland <gus@ping.uio.no>
- * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <glib.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-
-#define LOG_PREFIX "output/hex"
-
-#define DEFAULT_SAMPLES_PER_LINE 74
-
-struct context {
- unsigned int num_enabled_channels;
- int samples_per_line;
- int bit_cnt;
- int spl_cnt;
- int trigger;
- int *channel_index;
- char **channel_names;
- char **line_values;
- uint8_t *prev_sample;
- GString **lines;
- GString *header;
-};
-
-static int init(struct sr_output *o)
-{
- struct context *ctx;
- struct sr_channel *ch;
- GSList *l;
- GVariant *gvar;
- uint64_t samplerate;
- unsigned int i, j;
- int spl, num_channels;
- char *samplerate_s;
-
- if (!o || !o->sdi)
- return SR_ERR_ARG;
- ctx = g_malloc0(sizeof(struct context));
- o->internal = ctx;
- ctx->trigger = -1;
-
- if (o->param && o->param[0]) {
- if ((spl = strtoul(o->param, NULL, 10)) < 1)
- return SR_ERR_ARG;
- } else
- spl = DEFAULT_SAMPLES_PER_LINE;
- ctx->samples_per_line = spl;
-
- for (l = o->sdi->channels; l; l = l->next) {
- ch = l->data;
- if (ch->type != SR_CHANNEL_LOGIC)
- continue;
- if (!ch->enabled)
- 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));
-
- j = 0;
- for (i = 0, l = o->sdi->channels; l; l = l->next, i++) {
- 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);
- j++;
- }
-
- ctx->header = g_string_sized_new(512);
- g_string_printf(ctx->header, "%s\n", PACKAGE_STRING);
- num_channels = g_slist_length(o->sdi->channels);
- if (sr_config_get(o->sdi->driver, o->sdi, NULL, SR_CONF_SAMPLERATE,
- &gvar) == SR_OK) {
- samplerate = g_variant_get_uint64(gvar);
- samplerate_s = sr_samplerate_string(samplerate);
- g_string_append_printf(ctx->header, "Acquisition with %d/%d channels at %s\n",
- ctx->num_enabled_channels, num_channels, samplerate_s);
- g_free(samplerate_s);
- g_variant_unref(gvar);
- }
-
- return SR_OK;
-}
-
-static int receive(struct sr_output *o, const struct sr_dev_inst *sdi,
- const struct sr_datafeed_packet *packet, GString **out)
-{
- const struct sr_datafeed_logic *logic;
- struct context *ctx;
- int idx, offset, curbit, prevbit;
- uint64_t i, j;
- gchar *p, c;
-
- (void)sdi;
-
- *out = NULL;
- if (!o || !o->sdi)
- return SR_ERR_ARG;
- if (!(ctx = o->internal))
- return SR_ERR_ARG;
-
- switch (packet->type) {
- case SR_DF_TRIGGER:
- ctx->trigger = ctx->spl_cnt;
- break;
- case SR_DF_LOGIC:
- if (ctx->header) {
- /* The header is still here, this must be the first packet. */
- *out = ctx->header;
- ctx->header = NULL;
- } else
- *out = g_string_sized_new(512);
-
- logic = packet->payload;
- for (i = 0; i <= logic->length - logic->unitsize; i += logic->unitsize) {
- 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 = '/';
- }
- g_string_append_c(ctx->lines[j], c);
-
- if (ctx->spl_cnt == ctx->samples_per_line) {
- /* 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 (ctx->spl_cnt == ctx->samples_per_line)
- /* Line buffers were already flushed. */
- ctx->spl_cnt = 0;
- memcpy(ctx->prev_sample, logic->data + i, logic->unitsize);
- }
- break;
- case SR_DF_END:
- if (ctx->spl_cnt) {
- /* Line buffers need flushing. */
- *out = g_string_sized_new(512);
- for (i = 0; i < ctx->num_enabled_channels; i++) {
- g_string_append_len(*out, ctx->lines[i]->str, ctx->lines[i]->len);
- g_string_append_c(*out, '\n');
- }
- }
- break;
- }
-
- return SR_OK;
-}
-
-static int cleanup(struct sr_output *o)
-{
- struct context *ctx;
- unsigned int i;
-
- if (!o)
- return SR_ERR_ARG;
-
- if (!(ctx = o->internal))
- return SR_OK;
-
- g_free(ctx->header);
- g_free(ctx->channel_index);
- g_free(ctx->prev_sample);
- g_free(ctx->channel_names);
- for (i = 0; i < ctx->num_enabled_channels; i++)
- g_string_free(ctx->lines[i], TRUE);
- g_free(ctx->lines);
- if (ctx->header)
- g_string_free(ctx->header, TRUE);
- g_free(ctx);
- o->internal = NULL;
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_output_format output_ascii = {
- .id = "ascii",
- .description = "ASCII",
- .init = init,
- .receive = receive,
- .cleanup = cleanup,
-};
-
-