2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "libsigrok.h"
24 #include "libsigrok-internal.h"
26 #define LOG_PREFIX "output/hex"
28 #define DEFAULT_SAMPLES_PER_LINE 192
31 unsigned int num_enabled_channels;
45 static int init(struct sr_output *o, GHashTable *options)
48 struct sr_channel *ch;
58 spl = DEFAULT_SAMPLES_PER_LINE;
60 g_hash_table_iter_init(&iter, options);
61 while (g_hash_table_iter_next(&iter, &key, &value)) {
62 if (!strcmp(key, "width")) {
63 if (!g_variant_is_of_type(value, G_VARIANT_TYPE_UINT32)) {
64 sr_err("Invalid type for 'width' option.");
67 if (!(spl = g_variant_get_uint32(value))) {
68 sr_err("Invalid width.");
72 sr_err("Unknown option '%s'.", key);
78 ctx = g_malloc0(sizeof(struct context));
81 ctx->samples_per_line = spl;
83 for (l = o->sdi->channels; l; l = l->next) {
85 if (ch->type != SR_CHANNEL_LOGIC)
89 ctx->num_enabled_channels++;
91 ctx->channel_index = g_malloc(sizeof(int) * ctx->num_enabled_channels);
92 ctx->channel_names = g_malloc(sizeof(char *) * ctx->num_enabled_channels);
93 ctx->lines = g_malloc(sizeof(GString *) * ctx->num_enabled_channels);
94 ctx->sample_buf = g_malloc(ctx->num_enabled_channels);
97 for (i = 0, l = o->sdi->channels; l; l = l->next, i++) {
99 if (ch->type != SR_CHANNEL_LOGIC)
103 ctx->channel_index[j] = ch->index;
104 ctx->channel_names[j] = ch->name;
105 ctx->lines[j] = g_string_sized_new(80);
106 ctx->sample_buf[j] = 0;
107 g_string_printf(ctx->lines[j], "%s:", ch->name);
114 static GString *gen_header(const struct sr_output *o)
123 if (ctx->samplerate == 0) {
124 if (sr_config_get(o->sdi->driver, o->sdi, NULL, SR_CONF_SAMPLERATE,
126 ctx->samplerate = g_variant_get_uint64(gvar);
127 g_variant_unref(gvar);
131 header = g_string_sized_new(512);
132 g_string_printf(header, "%s\n", PACKAGE_STRING);
133 num_channels = g_slist_length(o->sdi->channels);
134 g_string_append_printf(header, "Acquisition with %d/%d channels",
135 ctx->num_enabled_channels, num_channels);
136 if (ctx->samplerate != 0) {
137 samplerate_s = sr_samplerate_string(ctx->samplerate);
138 g_string_append_printf(header, " at %s", samplerate_s);
139 g_free(samplerate_s);
141 g_string_append_printf(header, "\n");
146 static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
149 const struct sr_datafeed_meta *meta;
150 const struct sr_datafeed_logic *logic;
151 const struct sr_config *src;
154 int idx, pos, offset;
161 if (!(ctx = o->priv))
164 switch (packet->type) {
166 meta = packet->payload;
167 for (l = meta->config; l; l = l->next) {
169 if (src->key != SR_CONF_SAMPLERATE)
171 ctx->samplerate = g_variant_get_uint64(src->data);
175 ctx->trigger = ctx->spl_cnt;
178 if (!ctx->header_done) {
179 *out = gen_header(o);
180 ctx->header_done = TRUE;
182 *out = g_string_sized_new(512);
184 logic = packet->payload;
185 for (i = 0; i <= logic->length - logic->unitsize; i += logic->unitsize) {
187 pos = ctx->spl_cnt & 7;
188 for (j = 0; j < ctx->num_enabled_channels; j++) {
189 idx = ctx->channel_index[j];
190 p = logic->data + i + idx / 8;
191 ctx->sample_buf[j] <<= 1;
192 if (*p & (1 << (idx % 8)))
193 ctx->sample_buf[j] |= 1;
194 if (ctx->spl_cnt && pos == 0) {
195 /* Buffered a byte's worth, output hex. */
196 g_string_append_printf(ctx->lines[j], "%.2x ",
198 ctx->sample_buf[j] = 0;
201 if (ctx->spl_cnt == ctx->samples_per_line) {
202 /* Flush line buffers. */
203 g_string_append_len(*out, ctx->lines[j]->str, ctx->lines[j]->len);
204 g_string_append_c(*out, '\n');
205 if (j == ctx->num_enabled_channels - 1 && ctx->trigger > -1) {
206 offset = ctx->trigger + ctx->trigger / 8;
207 g_string_append_printf(*out, "T:%*s^ %d\n", offset, "", ctx->trigger);
210 g_string_printf(ctx->lines[j], "%s:", ctx->channel_names[j]);
213 if (ctx->spl_cnt == ctx->samples_per_line)
214 /* Line buffers were already flushed. */
220 /* Line buffers need flushing. */
221 *out = g_string_sized_new(512);
222 for (i = 0; i < ctx->num_enabled_channels; i++) {
223 if (ctx->spl_cnt & 7)
224 g_string_append_printf(ctx->lines[i], "%.2x ",
225 ctx->sample_buf[i] << (8 - (ctx->spl_cnt & 7)));
226 g_string_append_len(*out, ctx->lines[i]->str, ctx->lines[i]->len);
227 g_string_append_c(*out, '\n');
236 static int cleanup(struct sr_output *o)
244 if (!(ctx = o->priv))
247 g_free(ctx->channel_index);
248 g_free(ctx->sample_buf);
249 g_free(ctx->channel_names);
250 for (i = 0; i < ctx->num_enabled_channels; i++)
251 g_string_free(ctx->lines[i], TRUE);
259 static struct sr_option options[] = {
260 { "width", "Width", "Number of samples per line", NULL, NULL },
264 static struct sr_option *get_options(void)
266 if (!options[0].def) {
267 options[0].def = g_variant_new_uint32(DEFAULT_SAMPLES_PER_LINE);
268 g_variant_ref_sink(options[0].def);
274 SR_PRIV struct sr_output_module output_hex = {
276 .name = "Hexadecimal",
277 .desc = "Hexadecimal digits",
278 .options = get_options,