+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2011 Uwe Hermann <uwe@hermann-uwe.de>
- *
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <glib.h>
-#include "config.h"
-#include "sigrok.h"
-#include "sigrok-internal.h"
-
-struct context {
- unsigned int num_enabled_probes;
- unsigned int unitsize;
- char *probelist[SR_MAX_NUM_PROBES + 1];
- uint64_t samplerate;
- GString *header;
- char separator;
-};
-
-/*
- * TODO:
- * - Option to specify delimiter character and/or string.
- * - Option to (not) print metadata as comments.
- * - Option to specify the comment character(s), e.g. # or ; or C/C++-style.
- * - Option to (not) print samplenumber / time as extra column.
- * - Option to "compress" output (only print changed samples, VCD-like).
- * - Option to print comma-separated bits, or whole bytes/words (for 8/16
- * probe LAs) as ASCII/hex etc. etc.
- * - Trigger support.
- */
-
-static int init(struct sr_output *o)
-{
- struct context *ctx;
- struct sr_probe *probe;
- GSList *l;
- int num_probes;
- uint64_t samplerate;
- time_t t;
- unsigned int i;
-
- if (!o) {
- sr_err("csv out: %s: o was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!o->dev) {
- sr_err("csv out: %s: o->dev was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!o->dev->driver) {
- sr_err("csv out: %s: o->dev->driver was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
- sr_err("csv out: %s: ctx malloc failed", __func__);
- return SR_ERR_MALLOC;
- }
-
- o->internal = ctx;
-
- /* Get the number of probes, their names, and the unitsize. */
- /* TODO: Error handling. */
- for (l = o->dev->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 = (ctx->num_enabled_probes + 7) / 8;
-
- num_probes = g_slist_length(o->dev->probes);
-
- if (sr_dev_has_hwcap(o->dev, SR_HWCAP_SAMPLERATE)) {
- samplerate = *((uint64_t *) o->dev->driver->dev_info_get(
- o->dev->driver_index, SR_DI_CUR_SAMPLERATE));
- /* TODO: Error checks. */
- } else {
- samplerate = 0; /* TODO: Error or set some value? */
- }
- ctx->samplerate = samplerate;
-
- ctx->separator = ',';
-
- ctx->header = g_string_sized_new(512);
-
- t = time(NULL);
-
- /* Some metadata */
- g_string_append_printf(ctx->header, "; CSV, generated by %s on %s",
- PACKAGE_STRING, ctime(&t));
- g_string_append_printf(ctx->header, "; Samplerate: %"PRIu64"\n",
- ctx->samplerate);
-
- /* Columns / channels */
- g_string_append_printf(ctx->header, "; Channels (%d/%d): ",
- ctx->num_enabled_probes, num_probes);
- for (i = 0; i < ctx->num_enabled_probes; i++)
- g_string_append_printf(ctx->header, "%s, ", ctx->probelist[i]);
- g_string_append_printf(ctx->header, "\n");
-
- return 0; /* TODO: SR_OK? */
-}
-
-static int event(struct sr_output *o, int event_type, char **data_out,
- uint64_t *length_out)
-{
- struct context *ctx;
-
- if (!o) {
- sr_err("csv out: %s: o was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!(ctx = o->internal)) {
- sr_err("csv out: %s: o->internal was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!data_out) {
- sr_err("csv out: %s: data_out was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- switch (event_type) {
- case SR_DF_TRIGGER:
- sr_dbg("csv out: %s: SR_DF_TRIGGER event", __func__);
- /* TODO */
- *data_out = NULL;
- *length_out = 0;
- break;
- case SR_DF_END:
- sr_dbg("csv out: %s: SR_DF_END event", __func__);
- /* TODO */
- *data_out = NULL;
- *length_out = 0;
- g_free(o->internal);
- o->internal = NULL;
- break;
- default:
- sr_err("csv out: %s: unsupported event type: %d", __func__,
- event_type);
- *data_out = NULL;
- *length_out = 0;
- break;
- }
-
- return SR_OK;
-}
-
-static int data(struct sr_output *o, const char *data_in, uint64_t length_in,
- char **data_out, uint64_t *length_out)
-{
- struct context *ctx;
- GString *outstr;
- uint64_t sample, i;
- int j;
-
- if (!o) {
- sr_err("csv out: %s: o was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!(ctx = o->internal)) {
- sr_err("csv out: %s: o->internal was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!data_in) {
- sr_err("csv out: %s: data_in was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (ctx->header) {
- /* First data packet. */
- outstr = ctx->header;
- ctx->header = NULL;
- } else {
- outstr = g_string_sized_new(512);
- }
-
- for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) {
- memcpy(&sample, data_in + i, ctx->unitsize);
- for (j = ctx->num_enabled_probes - 1; j >= 0; j--) {
- g_string_append_printf(outstr, "%d%c",
- (int)((sample & (1 << j)) >> j),
- ctx->separator);
- }
- g_string_append_printf(outstr, "\n");
- }
-
- *data_out = outstr->str;
- *length_out = outstr->len;
- g_string_free(outstr, FALSE);
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_output_format output_csv = {
- .id = "csv",
- .description = "Comma-separated values (CSV)",
- .df_type = SR_DF_LOGIC,
- .init = init,
- .data = data,
- .event = event,
-};
projects / libsigrok.git / blobdiff