2 * This file is part of the sigrok project.
4 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2011 HÃ¥vard Espeland <gus@ping.uio.no>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "libsigrok.h"
25 #include "libsigrok-internal.h"
28 SR_PRIV int init_ascii(struct sr_output *o)
30 return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
33 SR_PRIV int data_ascii(struct sr_output *o, const uint8_t *data_in,
34 uint64_t length_in, uint8_t **data_out,
38 unsigned int outsize, offset, p;
44 max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
45 + ctx->samples_per_line / 8;
47 * Calculate space needed for probes. Set aside 512 bytes for
48 * extra output, e.g. trigger.
50 outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
51 * (ctx->num_enabled_probes * max_linelen);
53 if (!(outbuf = g_try_malloc0(outsize + 1))) {
54 sr_err("ascii out: %s: outbuf malloc failed", __func__);
60 /* The header is still here, this must be the first packet. */
61 strncpy((char *)outbuf, ctx->header, outsize);
66 if (length_in >= ctx->unitsize) {
67 for (offset = 0; offset <= length_in - ctx->unitsize;
68 offset += ctx->unitsize) {
69 memcpy(&sample, data_in + offset, ctx->unitsize);
71 char tmpval[ctx->num_enabled_probes];
73 for (p = 0; p < ctx->num_enabled_probes; p++) {
74 uint64_t curbit = (sample & ((uint64_t) 1 << p));
75 uint64_t prevbit = (ctx->prevsample &
78 if (curbit < prevbit && ctx->line_offset > 0) {
79 ctx->linebuf[p * ctx->linebuf_len +
80 ctx->line_offset-1] = '\\';
83 if (curbit > prevbit) {
94 if (ctx->spl_cnt >= ctx->samples_per_line) {
95 flush_linebufs(ctx, outbuf);
96 ctx->line_offset = ctx->spl_cnt = 0;
97 ctx->mark_trigger = -1;
100 for (p = 0; p < ctx->num_enabled_probes; p++) {
101 ctx->linebuf[p * ctx->linebuf_len +
102 ctx->line_offset] = tmpval[p];
108 ctx->prevsample = sample;
111 sr_info("ascii out: short buffer (length_in=%" PRIu64 ")",
116 *length_out = strlen((const char *)outbuf);
121 SR_PRIV struct sr_output_format output_text_ascii = {
123 .description = "ASCII",
124 .df_type = SR_DF_LOGIC,