+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2011 HÃ¥vard Espeland <gus@ping.uio.no>
+ * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.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 <stdio.h>
+#include <string.h>
+#include <glib.h>
+#include "sigrok.h"
+#include "config.h"
+
+#define DEFAULT_BPL_BITS 64
+#define DEFAULT_BPL_HEX 192
+#define DEFAULT_BPL_ASCII 74
+
+enum outputmode {
+ MODE_BITS = 1,
+ MODE_HEX,
+ MODE_ASCII,
+};
+
+struct context {
+ unsigned int num_enabled_probes;
+ int samples_per_line;
+ unsigned int unitsize;
+ int line_offset;
+ int linebuf_len;
+ char *probelist[65];
+ char *linebuf;
+ int spl_cnt;
+ uint8_t *linevalues;
+ char *header;
+ int mark_trigger;
+// struct sr_analog_sample *prevsample;
+ enum outputmode mode;
+};
+
+static void flush_linebufs(struct context *ctx, char *outbuf)
+{
+ static int max_probename_len = 0;
+ int len, i;
+
+ if (ctx->linebuf[0] == 0)
+ return;
+
+ if (max_probename_len == 0) {
+ /* First time through... */
+ for (i = 0; ctx->probelist[i]; i++) {
+ len = strlen(ctx->probelist[i]);
+ if (len > max_probename_len)
+ max_probename_len = len;
+ }
+ }
+
+ for (i = 0; ctx->probelist[i]; i++) {
+ sprintf(outbuf + strlen(outbuf), "%*s:%s\n", max_probename_len,
+ ctx->probelist[i], ctx->linebuf + i * ctx->linebuf_len);
+ }
+
+ /* Mark trigger with a ^ character. */
+ if (ctx->mark_trigger != -1)
+ {
+ int space_offset = ctx->mark_trigger / 8;
+
+ if (ctx->mode == MODE_ASCII)
+ space_offset = 0;
+
+ sprintf(outbuf + strlen(outbuf), "T:%*s^\n",
+ ctx->mark_trigger + space_offset, "");
+ }
+
+ memset(ctx->linebuf, 0, i * ctx->linebuf_len);
+}
+
+static int init(struct sr_output *o, int default_spl, enum outputmode mode)
+{
+ struct context *ctx;
+ struct sr_probe *probe;
+ GSList *l;
+ uint64_t samplerate;
+ int num_probes;
+ char *samplerate_s;
+
+ if (!(ctx = calloc(1, sizeof(struct context))))
+ return SR_ERR_MALLOC;
+
+ o->internal = ctx;
+ ctx->num_enabled_probes = 0;
+
+ for (l = o->device->probes; l; l = l->next) {
+ probe = l->data;
+ if (!probe->enabled)
+ continue;
+ ctx->probelist[ctx->num_enabled_probes++] = probe->name;
+ }
+
+ ctx->probelist[ctx->num_enabled_probes] = 0;
+ ctx->unitsize = sizeof(struct sr_analog_sample) +
+ (ctx->num_enabled_probes * sizeof(struct sr_analog_probe));
+ ctx->line_offset = 0;
+ ctx->spl_cnt = 0;
+ ctx->mark_trigger = -1;
+ ctx->mode = mode;
+
+ if (o->param && o->param[0]) {
+ ctx->samples_per_line = strtoul(o->param, NULL, 10);
+ if (ctx->samples_per_line < 1)
+ return SR_ERR;
+ } else
+ ctx->samples_per_line = default_spl;
+
+ if (!(ctx->header = malloc(512))) {
+ free(ctx);
+ return SR_ERR_MALLOC;
+ }
+
+ snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
+ num_probes = g_slist_length(o->device->probes);
+ if (o->device->plugin && sr_device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) {
+ samplerate = *((uint64_t *) o->device->plugin->get_device_info(
+ o->device->plugin_index, SR_DI_CUR_SAMPLERATE));
+ if (!(samplerate_s = sr_samplerate_string(samplerate))) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR;
+ }
+ snprintf(ctx->header + strlen(ctx->header),
+ 511 - strlen(ctx->header),
+ "Acquisition with %d/%d probes at %s\n",
+ ctx->num_enabled_probes, num_probes, samplerate_s);
+ free(samplerate_s);
+ }
+
+ ctx->linebuf_len = ctx->samples_per_line * 2 + 4;
+ if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR_MALLOC;
+ }
+ if (!(ctx->linevalues = calloc(1, num_probes))) {
+ free(ctx->header);
+ free(ctx);
+ return SR_ERR_MALLOC;
+ }
+
+ return SR_OK;
+}
+
+static int event(struct sr_output *o, int event_type, char **data_out,
+ uint64_t *length_out)
+{
+ struct context *ctx;
+ int outsize;
+ char *outbuf;
+
+ ctx = o->internal;
+ switch (event_type) {
+ case SR_DF_TRIGGER:
+ ctx->mark_trigger = ctx->spl_cnt;
+ *data_out = NULL;
+ *length_out = 0;
+ break;
+ case SR_DF_END:
+ outsize = ctx->num_enabled_probes
+ * (ctx->samples_per_line + 20) + 512;
+ if (!(outbuf = calloc(1, outsize)))
+ return SR_ERR_MALLOC;
+ flush_linebufs(ctx, outbuf);
+ *data_out = outbuf;
+ *length_out = strlen(outbuf);
+ free(o->internal);
+ o->internal = NULL;
+ break;
+ default:
+ *data_out = NULL;
+ *length_out = 0;
+ break;
+ }
+
+ return SR_OK;
+}
+
+static int init_bits(struct sr_output *o)
+{
+ return init(o, DEFAULT_BPL_BITS, MODE_BITS);
+}
+
+static int data_bits(struct sr_output *o, const char *data_in,
+ uint64_t length_in, char **data_out, uint64_t *length_out)
+{
+ struct context *ctx;
+ unsigned int outsize, offset, p;
+ int max_linelen;
+ struct sr_analog_sample *sample;
+ char *outbuf, c;
+
+ ctx = o->internal;
+ max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
+ + ctx->samples_per_line / 8;
+ /*
+ * Calculate space needed for probes. Set aside 512 bytes for
+ * extra output, e.g. trigger.
+ */
+ outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
+ * (ctx->num_enabled_probes * max_linelen);
+
+ if (!(outbuf = calloc(1, outsize + 1)))
+ return SR_ERR_MALLOC;
+
+ outbuf[0] = '\0';
+ if (ctx->header) {
+ /* The header is still here, this must be the first packet. */
+ strncpy(outbuf, ctx->header, outsize);
+ free(ctx->header);
+ ctx->header = NULL;
+
+ /* Ensure first transition. */
+// memcpy(&ctx->prevsample, data_in, ctx->unitsize);
+// ctx->prevsample = ~ctx->prevsample;
+ }
+
+ if (length_in >= ctx->unitsize) {
+ for (offset = 0; offset <= length_in - ctx->unitsize;
+ offset += ctx->unitsize) {
+ sample = (struct sr_analog_sample *) (data_in + offset);
+ for (p = 0; p < ctx->num_enabled_probes; p++) {
+ int val = sample->probes[p].val;
+ int res = sample->probes[p].res;
+ if (res == 1)
+ c = '0' + (val & ((1 << res) - 1));
+ else
+ /*
+ * Scale analog resolution down so it
+ * fits 25 letters
+ */
+ c = 'A' + (((val & ((1 << res) - 1)) /
+ (res * res)) / 10);
+ ctx->linebuf[p * ctx->linebuf_len +
+ ctx->line_offset] = c;
+ }
+ ctx->line_offset++;
+ ctx->spl_cnt++;
+
+ /* Add a space every 8th bit. */
+ if ((ctx->spl_cnt & 7) == 0) {
+ for (p = 0; p < ctx->num_enabled_probes; p++)
+ ctx->linebuf[p * ctx->linebuf_len +
+ ctx->line_offset] = ' ';
+ ctx->line_offset++;
+ }
+
+ /* End of line. */
+ if (ctx->spl_cnt >= ctx->samples_per_line) {
+ flush_linebufs(ctx, outbuf);
+ ctx->line_offset = ctx->spl_cnt = 0;
+ ctx->mark_trigger = -1;
+ }
+ }
+ } else {
+ sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
+ }
+
+ *data_out = outbuf;
+ *length_out = strlen(outbuf);
+
+ return SR_OK;
+}
+#if 0
+static int init_hex(struct sr_output *o)
+{
+ return init(o, DEFAULT_BPL_HEX, MODE_HEX);
+}
+
+static int data_hex(struct sr_output *o, const char *data_in,
+ uint64_t length_in, char **data_out, uint64_t *length_out)
+{
+ struct context *ctx;
+ unsigned int outsize, offset, p;
+ int max_linelen;
+ uint64_t sample;
+ char *outbuf;
+
+ ctx = o->internal;
+ max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
+ + ctx->samples_per_line / 2;
+ outsize = length_in / ctx->unitsize * ctx->num_enabled_probes
+ / ctx->samples_per_line * max_linelen + 512;
+
+ if (!(outbuf = calloc(1, outsize + 1)))
+ return SR_ERR_MALLOC;
+
+ outbuf[0] = '\0';
+ if (ctx->header) {
+ /* The header is still here, this must be the first packet. */
+ strncpy(outbuf, ctx->header, outsize);
+ free(ctx->header);
+ ctx->header = NULL;
+ }
+
+ ctx->line_offset = 0;
+ for (offset = 0; offset <= length_in - ctx->unitsize;
+ offset += ctx->unitsize) {
+ memcpy(&sample, data_in + offset, ctx->unitsize);
+ for (p = 0; p < ctx->num_enabled_probes; p++) {
+ ctx->linevalues[p] <<= 1;
+ if (sample & ((uint64_t) 1 << p))
+ ctx->linevalues[p] |= 1;
+ sprintf(ctx->linebuf + (p * ctx->linebuf_len) +
+ ctx->line_offset, "%.2x", ctx->linevalues[p]);
+ }
+ ctx->spl_cnt++;
+
+ /* Add a space after every complete hex byte. */
+ if ((ctx->spl_cnt & 7) == 0) {
+ for (p = 0; p < ctx->num_enabled_probes; p++)
+ ctx->linebuf[p * ctx->linebuf_len +
+ ctx->line_offset + 2] = ' ';
+ ctx->line_offset += 3;
+ }
+
+ /* End of line. */
+ if (ctx->spl_cnt >= ctx->samples_per_line) {
+ flush_linebufs(ctx, outbuf);
+ ctx->line_offset = ctx->spl_cnt = 0;
+ }
+ }
+
+ *data_out = outbuf;
+ *length_out = strlen(outbuf);
+
+ return SR_OK;
+}
+
+static int init_ascii(struct sr_output *o)
+{
+ return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
+}
+
+static int data_ascii(struct sr_output *o, const char *data_in,
+ uint64_t length_in, char **data_out, uint64_t *length_out)
+{
+ struct context *ctx;
+ unsigned int outsize, offset, p;
+ int max_linelen;
+ uint64_t sample;
+ char *outbuf;
+
+ ctx = o->internal;
+ max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
+ + ctx->samples_per_line / 8;
+ /*
+ * Calculate space needed for probes. Set aside 512 bytes for
+ * extra output, e.g. trigger.
+ */
+ outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
+ * (ctx->num_enabled_probes * max_linelen);
+
+ if (!(outbuf = calloc(1, outsize + 1)))
+ return SR_ERR_MALLOC;
+
+ outbuf[0] = '\0';
+ if (ctx->header) {
+ /* The header is still here, this must be the first packet. */
+ strncpy(outbuf, ctx->header, outsize);
+ free(ctx->header);
+ ctx->header = NULL;
+ }
+
+ if (length_in >= ctx->unitsize) {
+ for (offset = 0; offset <= length_in - ctx->unitsize;
+ offset += ctx->unitsize) {
+ memcpy(&sample, data_in + offset, ctx->unitsize);
+
+ char tmpval[ctx->num_enabled_probes];
+
+ for (p = 0; p < ctx->num_enabled_probes; p++) {
+ uint64_t curbit = (sample & ((uint64_t) 1 << p));
+ uint64_t prevbit = (ctx->prevsample &
+ ((uint64_t) 1 << p));
+
+ if (curbit < prevbit && ctx->line_offset > 0) {
+ ctx->linebuf[p * ctx->linebuf_len +
+ ctx->line_offset-1] = '\\';
+ }
+
+ if (curbit > prevbit) {
+ tmpval[p] = '/';
+ } else {
+ if (curbit)
+ tmpval[p] = '"';
+ else
+ tmpval[p] = '.';
+ }
+ }
+
+ /* End of line. */
+ if (ctx->spl_cnt >= ctx->samples_per_line) {
+ flush_linebufs(ctx, outbuf);
+ ctx->line_offset = ctx->spl_cnt = 0;
+ ctx->mark_trigger = -1;
+ }
+
+ for (p = 0; p < ctx->num_enabled_probes; p++) {
+ ctx->linebuf[p * ctx->linebuf_len +
+ ctx->line_offset] = tmpval[p];
+ }
+
+ ctx->line_offset++;
+ ctx->spl_cnt++;
+
+ ctx->prevsample = sample;
+ }
+ } else {
+ sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
+ }
+
+ *data_out = outbuf;
+ *length_out = strlen(outbuf);
+
+ return SR_OK;
+}
+#endif
+
+struct sr_output_format output_analog_bits = {
+ .id = "analog_bits",
+ .description = "Bits (takes argument, default 64)",
+ .df_type = SR_DF_ANALOG,
+ .init = init_bits,
+ .data = data_bits,
+ .event = event,
+};
+#if 0
+struct sr_output_format output_analog_hex = {
+ .id = "analog_hex",
+ .description = "Hexadecimal (takes argument, default 192)",
+ .df_type = SR_DF_ANALOG,
+ .init = init_hex,
+ .data = data_hex,
+ .event = event,
+};
+
+struct sr_output_format output_analog_ascii = {
+ .id = "analog_ascii",
+ .description = "ASCII (takes argument, default 74)",
+ .df_type = SR_DF_ANALOG,
+ .init = init_ascii,
+ .data = data_ascii,
+ .event = event,
+};
+#endif