/*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
*
* Copyright (C) 2011 Uwe Hermann <uwe@hermann-uwe.de>
*
#include "libsigrok.h"
#include "libsigrok-internal.h"
-/* Message logging helpers with driver-specific prefix string. */
-#define DRIVER_LOG_DOMAIN "output/csv: "
-#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
-#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
+#define LOG_PREFIX "output/csv"
struct context {
- unsigned int num_enabled_probes;
- unsigned int unitsize;
- char *probelist[SR_MAX_NUM_PROBES + 1];
+ unsigned int num_enabled_channels;
uint64_t samplerate;
- GString *header;
char separator;
+ gboolean header_done;
+ int *channel_index;
};
/*
* - 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.
+ * channel LAs) as ASCII/hex etc. etc.
* - Trigger support.
*/
static int init(struct sr_output *o)
{
struct context *ctx;
- struct sr_probe *probe;
+ struct sr_channel *ch;
GSList *l;
- int num_probes;
- uint64_t *samplerate;
- time_t t;
- unsigned int i;
-
- if (!o) {
- sr_err("%s: o was NULL", __func__);
- return SR_ERR_ARG;
- }
+ int i;
- if (!o->sdi) {
- sr_err("%s: o->sdi was NULL", __func__);
+ if (!o || !o->sdi)
return SR_ERR_ARG;
- }
-
- if (!o->sdi->driver) {
- sr_err("%s: o->sdi->driver was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
- sr_err("%s: ctx malloc failed", __func__);
- return SR_ERR_MALLOC;
- }
+ ctx = g_malloc0(sizeof(struct context));
o->internal = ctx;
+ ctx->separator = ',';
- /* Get the number of probes, their names, and the unitsize. */
- for (l = o->sdi->probes; l; l = l->next) {
- probe = l->data;
- if (!probe->enabled)
+ /* Get the number of channels, and the unitsize. */
+ for (l = o->sdi->channels; l; l = l->next) {
+ ch = l->data;
+ if (ch->type != SR_CHANNEL_LOGIC)
continue;
- ctx->probelist[ctx->num_enabled_probes++] = probe->name;
+ if (!ch->enabled)
+ continue;
+ ctx->num_enabled_channels++;
}
- ctx->probelist[ctx->num_enabled_probes] = 0;
- ctx->unitsize = (ctx->num_enabled_probes + 7) / 8;
+ ctx->channel_index = g_malloc(sizeof(int) * ctx->num_enabled_channels);
- num_probes = g_slist_length(o->sdi->probes);
+ /* Once more to map the enabled channels. */
+ for (i = 0, l = o->sdi->channels; l; l = l->next) {
+ ch = l->data;
+ if (ch->type != SR_CHANNEL_LOGIC)
+ continue;
+ if (!ch->enabled)
+ continue;
+ ctx->channel_index[i++] = ch->index;
+ }
- if (sr_dev_has_hwcap(o->sdi, SR_CONF_SAMPLERATE)) {
- o->sdi->driver->config_get(SR_DI_CUR_SAMPLERATE,
- (const void **)&samplerate, o->sdi);
- ctx->samplerate = *samplerate;
- } else
- ctx->samplerate = 0;
+ return SR_OK;
+}
- ctx->separator = ',';
- ctx->header = g_string_sized_new(512);
+static GString *gen_header(struct sr_output *o)
+{
+ struct context *ctx;
+ struct sr_channel *ch;
+ GVariant *gvar;
+ GString *header;
+ GSList *l;
+ time_t t;
+ int num_channels, i;
+ char *samplerate_s;
- t = time(NULL);
+ ctx = o->internal;
+ header = g_string_sized_new(512);
/* 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);
+ t = time(NULL);
+ g_string_append_printf(header, "; CSV, generated by %s on %s",
+ PACKAGE_STRING, ctime(&t));
/* 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");
+ num_channels = g_slist_length(o->sdi->channels);
+ g_string_append_printf(header, "; Channels (%d/%d):",
+ ctx->num_enabled_channels, num_channels);
+ 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;
+ g_string_append_printf(header, " %s,", ch->name);
+ }
+ if (o->sdi->channels)
+ /* Drop last separator. */
+ g_string_truncate(header, header->len - 1);
+ g_string_append_printf(header, "\n");
+
+ if (ctx->samplerate == 0) {
+ if (sr_config_get(o->sdi->driver, o->sdi, NULL, SR_CONF_SAMPLERATE,
+ &gvar) == SR_OK) {
+ ctx->samplerate = g_variant_get_uint64(gvar);
+ g_variant_unref(gvar);
+ }
+ }
+ if (ctx->samplerate != 0) {
+ samplerate_s = sr_samplerate_string(ctx->samplerate);
+ g_string_append_printf(header, "; Samplerate: %s\n", samplerate_s);
+ g_free(samplerate_s);
+ }
- return SR_OK;
+ return header;
}
-static int event(struct sr_output *o, int event_type, uint8_t **data_out,
- uint64_t *length_out)
+static int receive(struct sr_output *o, const struct sr_datafeed_packet *packet,
+ GString **out)
{
+ const struct sr_datafeed_meta *meta;
+ const struct sr_datafeed_logic *logic;
+ const struct sr_config *src;
+ GSList *l;
struct context *ctx;
+ int idx;
+ uint64_t i, j;
+ gchar *p, c;
- if (!o) {
- sr_err("%s: o was NULL", __func__);
+ *out = NULL;
+ if (!o || !o->sdi)
return SR_ERR_ARG;
- }
-
- if (!(ctx = o->internal)) {
- sr_err("%s: o->internal was NULL", __func__);
+ if (!(ctx = o->internal))
return SR_ERR_ARG;
- }
- if (!data_out) {
- sr_err("%s: data_out was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- switch (event_type) {
- case SR_DF_TRIGGER:
- sr_dbg("%s: SR_DF_TRIGGER event", __func__);
- /* TODO */
- *data_out = NULL;
- *length_out = 0;
- break;
- case SR_DF_END:
- sr_dbg("%s: SR_DF_END event", __func__);
- /* TODO */
- *data_out = NULL;
- *length_out = 0;
- g_free(o->internal);
- o->internal = NULL;
+ switch (packet->type) {
+ case SR_DF_META:
+ meta = packet->payload;
+ for (l = meta->config; l; l = l->next) {
+ src = l->data;
+ if (src->key != SR_CONF_SAMPLERATE)
+ continue;
+ ctx->samplerate = g_variant_get_uint64(src->data);
+ }
break;
- default:
- sr_err("%s: unsupported event type: %d", __func__, event_type);
- *data_out = NULL;
- *length_out = 0;
+ case SR_DF_LOGIC:
+ logic = packet->payload;
+ if (!ctx->header_done) {
+ *out = gen_header(o);
+ ctx->header_done = TRUE;
+ } else {
+ *out = g_string_sized_new(512);
+ }
+
+ for (i = 0; i <= logic->length - logic->unitsize; i += logic->unitsize) {
+ for (j = 0; j < ctx->num_enabled_channels; j++) {
+ idx = ctx->channel_index[j];
+ p = logic->data + i + idx / 8;
+ c = *p & (1 << (idx % 8));
+ g_string_append_c(*out, c ? '1' : '0');
+ g_string_append_c(*out, ctx->separator);
+ }
+ if (j) {
+ /* Drop last separator. */
+ g_string_truncate(*out, (*out)->len - 1);
+ }
+ g_string_append_printf(*out, "\n");
+ }
break;
}
return SR_OK;
}
-static int data(struct sr_output *o, const uint8_t *data_in,
- uint64_t length_in, uint8_t **data_out, uint64_t *length_out)
+static int cleanup(struct sr_output *o)
{
struct context *ctx;
- GString *outstr;
- uint64_t sample, i;
- int j;
-
- if (!o) {
- sr_err("%s: o was NULL", __func__);
- return SR_ERR_ARG;
- }
- if (!(ctx = o->internal)) {
- sr_err("%s: o->internal was NULL", __func__);
+ if (!o || !o->sdi)
return SR_ERR_ARG;
- }
- if (!data_in) {
- sr_err("%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");
+ if (o->internal) {
+ ctx = o->internal;
+ g_free(ctx->channel_index);
+ g_free(o->internal);
+ o->internal = NULL;
}
- *data_out = (uint8_t *)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,
+ .receive = receive,
+ .cleanup = cleanup,
};
projects / libsigrok.git / blobdiff