2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Marc Schink <sigrok-dev@marcschink.de>
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/>.
26 #include <libsigrok/libsigrok.h>
27 #include "libsigrok-internal.h"
29 #define LOG_PREFIX "input/csv"
31 #define CHUNK_SIZE (4 * 1024 * 1024)
34 * The CSV input module has the following options:
36 * single-column: Specifies the column number which stores the sample data for
37 * single column mode and enables single column mode. Multi
38 * column mode is used if this parameter is omitted.
40 * numchannels: Specifies the number of channels to use. In multi column mode
41 * the number of channels are the number of columns and in single
42 * column mode the number of bits (LSB first) beginning at
45 * delimiter: Specifies the delimiter for columns. Must be at least one
46 * character. Comma is used as default delimiter.
48 * format: Specifies the format of the sample data in single column mode.
49 * Available formats are: 'bin', 'hex' and 'oct'. The binary
50 * format is used by default. This option has no effect in multi
53 * comment: Specifies the prefix character(s) for comments. No prefix
54 * characters are used by default which disables removing of
57 * samplerate: Samplerate which the sample data was captured with. Default
60 * first-channel: Column number of the first channel in multi column mode and
61 * position of the bit for the first channel in single column mode.
64 * header: Determines if the first line should be treated as header
65 * and used for channel names in multi column mode. Empty header
66 * names will be replaced by the channel number. If enabled in
67 * single column mode the first line will be skipped. Usage of
68 * header is disabled by default.
70 * startline: Line number to start processing sample data. Must be greater
71 * than 0. The default line number to start processing is 1.
77 * - Determine how the text line handling can get improved, regarding
78 * all of robustness and flexibility and correctness.
79 * - The current implementation splits on "any run of CR and LF". Which
80 * translates to: Line numbers are wrong in the presence of empty
81 * lines in the input stream. See below for an (expensive) fix.
82 * - Dropping support for CR style end-of-line markers could improve
83 * the situation a lot. Code could search for and split on LF, and
84 * trim optional trailing CR. This would result in proper support
85 * for CRLF (Windows) as well as LF (Unix), and allow for correct
87 * - When support for CR-only line termination cannot get dropped,
88 * then the current implementation is inappropriate. Currently the
89 * input stream is scanned for the first occurance of either of the
90 * supported termination styles (which is good). For the remaining
91 * session a consistent encoding of the text lines is assumed (which
93 * - When line numbers need to be correct and reliable, _and_ the full
94 * set of previously supported line termination sequences are required,
95 * and potentially more are to get added for improved compatibility
96 * with more platforms or generators, then the current approach of
97 * splitting on runs of termination characters needs to get replaced,
98 * by the more expensive approach to scan for and count the initially
99 * determined termination sequence.
101 * - Add support for analog input data? (optional)
102 * - Needs a syntax first for user specs which channels (columns) are
103 * logic and which are analog. May need heuristics(?) to guess from
104 * input data in the absence of user provided specs.
107 /* Single column formats. */
108 enum single_col_format {
117 /* Current selected samplerate. */
120 /* Number of channels. */
123 /* Column delimiter character(s). */
126 /* Comment prefix character(s). */
129 /* Termination character(s) used in current stream. */
132 /* Determines if sample data is stored in multiple columns. */
133 gboolean multi_column_mode;
135 /* Column number of the sample data in single column mode. */
136 size_t single_column;
139 * Number of the first column to parse. Equivalent to the number of the
140 * first channel in multi column mode and the single column number in
141 * single column mode.
146 * Column number of the first channel in multi column mode and position of
147 * the bit for the first channel in single column mode.
149 size_t first_channel;
151 /* Line number to start processing. */
155 * Determines if the first line should be treated as header and used for
156 * channel names in multi column mode.
160 /* Format sample data is stored in single column mode. */
161 enum single_col_format format;
163 size_t sample_unit_size; /**!< Byte count for a single sample. */
164 uint8_t *sample_buffer; /**!< Buffer for a single sample. */
166 uint8_t *datafeed_buffer; /**!< Queue for datafeed submission. */
167 size_t datafeed_buf_size;
168 size_t datafeed_buf_fill;
170 /* Current line number. */
173 /* List of previously created sigrok channels. */
174 GSList *prev_sr_channels;
178 * Primitive operations to handle sample sets:
179 * - Keep a buffer for datafeed submission, capable of holding many
180 * samples (reduces call overhead, improves throughput).
181 * - Have a "current sample set" pointer reference one position in that
182 * large samples buffer.
183 * - Clear the current sample set before text line inspection, then set
184 * the bits which are found active in the current line of text input.
185 * Phrase the API such that call sites can be kept simple. Advance to
186 * the next sample set between lines, flush the larger buffer as needed
187 * (when it is full, or upon EOF).
190 static void clear_logic_samples(struct context *inc)
192 inc->sample_buffer = &inc->datafeed_buffer[inc->datafeed_buf_fill];
193 memset(inc->sample_buffer, 0, inc->sample_unit_size);
196 static void set_logic_level(struct context *inc, size_t ch_idx, int on)
198 size_t byte_idx, bit_idx;
201 if (ch_idx >= inc->num_channels)
206 byte_idx = ch_idx / 8;
207 bit_idx = ch_idx % 8;
208 bit_mask = 1 << bit_idx;
209 inc->sample_buffer[byte_idx] |= bit_mask;
212 static int flush_logic_samples(const struct sr_input *in)
215 struct sr_datafeed_packet packet;
216 struct sr_datafeed_logic logic;
220 if (!inc->datafeed_buf_fill)
223 memset(&packet, 0, sizeof(packet));
224 memset(&logic, 0, sizeof(logic));
225 packet.type = SR_DF_LOGIC;
226 packet.payload = &logic;
227 logic.unitsize = inc->sample_unit_size;
228 logic.length = inc->datafeed_buf_fill;
229 logic.data = inc->datafeed_buffer;
231 rc = sr_session_send(in->sdi, &packet);
235 inc->datafeed_buf_fill = 0;
239 static int queue_logic_samples(const struct sr_input *in)
246 inc->datafeed_buf_fill += inc->sample_unit_size;
247 if (inc->datafeed_buf_fill == inc->datafeed_buf_size) {
248 rc = flush_logic_samples(in);
256 * Primitive operations for text input: Strip comments off text lines.
257 * Split text lines into columns. Process input text for individual
261 static void strip_comment(char *buf, const GString *prefix)
268 if ((ptr = strstr(buf, prefix->str))) {
274 /* TODO Move parse_line() here. */
277 * @brief Parse a text field into multiple bits, binary presentation.
279 * @param[in] str The input text, a run of 0/1 digits.
280 * @param[in] inc The input module's context.
282 * @retval SR_OK Success.
283 * @retval SR_ERR Invalid input data (empty, or format error).
285 * This routine modifies the logic levels in the current sample set,
286 * based on the text input which consists of binary digits.
288 static int parse_binstr(const char *str, struct context *inc)
293 length = strlen(str);
295 sr_err("Column %zu in line %zu is empty.", inc->single_column,
300 i = inc->first_channel;
301 for (j = 0; i < length && j < inc->num_channels; i++, j++) {
302 c = str[length - i - 1];
304 set_logic_level(inc, j, 1);
305 } else if (c != '0') {
306 sr_err("Invalid text '%s' in binary column %zu in line %zu.",
307 str, inc->single_column, inc->line_number);
316 * @brief Parse a text field into multiple bits, hexadecimal presentation.
318 * @param[in] str The input text, a run of hex digits.
319 * @param[in] inc The input module's context.
321 * @retval SR_OK Success.
322 * @retval SR_ERR Invalid input data (empty, or format error).
324 * This routine modifies the logic levels in the current sample set,
325 * based on the text input which consists of hexadecimal digits.
327 static int parse_hexstr(const char *str, struct context *inc)
329 gsize i, j, k, length;
333 length = strlen(str);
335 sr_err("Column %zu in line %zu is empty.", inc->single_column,
340 /* Calculate the position of the first hexadecimal digit. */
341 i = inc->first_channel / 4;
342 for (j = 0; i < length && j < inc->num_channels; i++) {
343 c = str[length - i - 1];
344 if (!g_ascii_isxdigit(c)) {
345 sr_err("Invalid text '%s' in hex column %zu in line %zu.",
346 str, inc->single_column, inc->line_number);
350 value = g_ascii_xdigit_value(c);
351 k = (inc->first_channel + j) % 4;
352 for (; j < inc->num_channels && k < 4; j++, k++) {
353 set_logic_level(inc, j, value & (1 << k));
361 * @brief Parse a text field into multiple bits, octal presentation.
363 * @param[in] str The input text, a run of oct digits.
364 * @param[in] inc The input module's context.
366 * @retval SR_OK Success.
367 * @retval SR_ERR Invalid input data (empty, or format error).
369 * This routine modifies the logic levels in the current sample set,
370 * based on the text input which consists of octal digits.
372 static int parse_octstr(const char *str, struct context *inc)
374 gsize i, j, k, length;
378 length = strlen(str);
380 sr_err("Column %zu in line %zu is empty.", inc->single_column,
385 /* Calculate the position of the first octal digit. */
386 i = inc->first_channel / 3;
387 for (j = 0; i < length && j < inc->num_channels; i++) {
388 c = str[length - i - 1];
389 if (c < '0' || c > '7') {
390 sr_err("Invalid text '%s' in oct column %zu in line %zu.",
391 str, inc->single_column, inc->line_number);
395 value = g_ascii_xdigit_value(c);
396 k = (inc->first_channel + j) % 3;
397 for (; j < inc->num_channels && k < 3; j++, k++) {
398 set_logic_level(inc, j, value & (1 << k));
405 static int parse_single_column(const char *column, struct context *inc)
407 switch (inc->format) {
409 return parse_binstr(column, inc);
411 return parse_hexstr(column, inc);
413 return parse_octstr(column, inc);
420 * @brief Splits a text line into a set of columns.
422 * @param[in] buf The input text line to split.
423 * @param[in] inc The input module's context.
424 * @param[in] max_cols The maximum column count, negative to get all of them.
426 * @returns An array of strings, representing the columns' text.
428 * This routine splits a text line on previously determined separators.
429 * A previously determined set of columns gets isolated (starting at a
430 * first position and spanning a given number of columns). A negative
431 * value for the maximum number of columns results in no restriction on
432 * the result set's length (the first columns still get trimmed off).
434 static char **parse_line(char *buf, struct context *inc, ssize_t max_cols)
436 const char *str, *remainder;
447 str = strstr(remainder, inc->delimiter->str);
448 while (str && max_cols) {
449 if (seen >= inc->first_column) {
450 column = g_strndup(remainder, str - remainder);
451 list = g_slist_prepend(list, g_strstrip(column));
457 remainder = str + inc->delimiter->len;
458 str = strstr(remainder, inc->delimiter->str);
462 if (buf[0] && max_cols && seen >= inc->first_column) {
463 column = g_strdup(remainder);
464 list = g_slist_prepend(list, g_strstrip(column));
468 if (!(columns = g_try_new(char *, taken + 1)))
470 columns[taken--] = NULL;
471 for (l = list; l; l = l->next)
472 columns[taken--] = l->data;
480 * @brief Picks logic levels from multiple binary colomns, one channel per column.
482 * @param[in] columns The text fields which are kept in the columns.
483 * @param[in] inc The input module's context.
485 * @retval SR_OK Success.
486 * @retval SR_ERR Insufficient input, or syntax errors.
488 * This routine exclusively handles binary input where one logic channel
489 * occupies one column each. All channels are expected to reside in one
490 * consequtive run of columns.
492 static int parse_multi_columns(char **columns, struct context *inc)
497 for (i = 0; i < inc->num_channels; i++) {
499 if (strcmp(column, "1") == 0) {
500 set_logic_level(inc, i, 1);
501 } else if (!strlen(column)) {
502 sr_err("Column %zu in line %zu is empty.",
503 inc->first_channel + i, inc->line_number);
505 } else if (strcmp(column, "0") != 0) {
506 sr_err("Invalid text '%s' in bit column %zu in line %zu.",
507 column, inc->first_channel + i,
516 static int init(struct sr_input *in, GHashTable *options)
521 in->sdi = g_malloc0(sizeof(struct sr_dev_inst));
522 in->priv = inc = g_malloc0(sizeof(struct context));
524 inc->single_column = g_variant_get_uint32(g_hash_table_lookup(options, "single-column"));
525 inc->multi_column_mode = inc->single_column == 0;
527 inc->num_channels = g_variant_get_uint32(g_hash_table_lookup(options, "numchannels"));
529 inc->delimiter = g_string_new(g_variant_get_string(
530 g_hash_table_lookup(options, "delimiter"), NULL));
531 if (inc->delimiter->len == 0) {
532 sr_err("Delimiter must be at least one character.");
536 s = g_variant_get_string(g_hash_table_lookup(options, "format"), NULL);
537 if (!g_ascii_strncasecmp(s, "bin", 3)) {
538 inc->format = FORMAT_BIN;
539 } else if (!g_ascii_strncasecmp(s, "hex", 3)) {
540 inc->format = FORMAT_HEX;
541 } else if (!g_ascii_strncasecmp(s, "oct", 3)) {
542 inc->format = FORMAT_OCT;
544 sr_err("Invalid format: '%s'", s);
548 inc->comment = g_string_new(g_variant_get_string(
549 g_hash_table_lookup(options, "comment"), NULL));
550 if (g_string_equal(inc->comment, inc->delimiter)) {
551 /* That's never going to work. Likely the result of the user
552 * setting the delimiter to ; -- the default comment. Clearing
553 * the comment setting will work in that case. */
554 g_string_truncate(inc->comment, 0);
557 inc->samplerate = g_variant_get_uint64(g_hash_table_lookup(options, "samplerate"));
559 inc->first_channel = g_variant_get_uint32(g_hash_table_lookup(options, "first-channel"));
561 inc->header = g_variant_get_boolean(g_hash_table_lookup(options, "header"));
563 inc->start_line = g_variant_get_uint32(g_hash_table_lookup(options, "startline"));
564 if (inc->start_line < 1) {
565 sr_err("Invalid start line %zu.", inc->start_line);
569 if (inc->multi_column_mode)
570 inc->first_column = inc->first_channel;
572 inc->first_column = inc->single_column;
574 if (!inc->multi_column_mode && !inc->num_channels) {
575 sr_err("Number of channels needs to be specified in single column mode.");
583 * Check the channel list for consistency across file re-import. See
584 * the VCD input module for more details and motivation.
587 static void keep_header_for_reread(const struct sr_input *in)
592 g_slist_free_full(inc->prev_sr_channels, sr_channel_free_cb);
593 inc->prev_sr_channels = in->sdi->channels;
594 in->sdi->channels = NULL;
597 static int check_header_in_reread(const struct sr_input *in)
606 if (!inc->prev_sr_channels)
609 if (sr_channel_lists_differ(inc->prev_sr_channels, in->sdi->channels)) {
610 sr_err("Channel list change not supported for file re-read.");
613 g_slist_free_full(in->sdi->channels, sr_channel_free_cb);
614 in->sdi->channels = inc->prev_sr_channels;
615 inc->prev_sr_channels = NULL;
620 static const char *delim_set = "\r\n";
622 static const char *get_line_termination(GString *buf)
627 if (g_strstr_len(buf->str, buf->len, "\r\n"))
629 else if (memchr(buf->str, '\n', buf->len))
631 else if (memchr(buf->str, '\r', buf->len))
637 static int initial_parse(const struct sr_input *in, GString *buf)
640 GString *channel_name;
641 size_t num_columns, i;
642 size_t line_number, l;
644 char **lines, *line, **columns, *column;
651 lines = g_strsplit_set(buf->str, delim_set, 0);
652 for (l = 0; lines[l]; l++) {
655 if (inc->start_line > line_number) {
656 sr_spew("Line %zu skipped.", line_number);
659 if (line[0] == '\0') {
660 sr_spew("Blank line %zu skipped.", line_number);
663 strip_comment(line, inc->comment);
664 if (line[0] == '\0') {
665 sr_spew("Comment-only line %zu skipped.", line_number);
669 /* Reached first proper line. */
673 /* Not enough data for a proper line yet. */
679 * In order to determine the number of columns parse the current line
680 * without limiting the number of columns.
682 columns = parse_line(line, inc, -1);
684 sr_err("Error while parsing line %zu.", line_number);
688 num_columns = g_strv_length(columns);
690 /* Ensure that the first column is not out of bounds. */
692 sr_err("Column %zu in line %zu is out of bounds.",
693 inc->first_column, line_number);
698 if (inc->multi_column_mode) {
700 * Detect the number of channels in multi column mode
701 * automatically if not specified.
703 if (!inc->num_channels) {
704 inc->num_channels = num_columns;
705 sr_dbg("Number of auto-detected channels: %zu.",
710 * Ensure that the number of channels does not exceed the number
711 * of columns in multi column mode.
713 if (num_columns < inc->num_channels) {
714 sr_err("Not enough columns for desired number of channels in line %zu.",
721 channel_name = g_string_sized_new(64);
722 for (i = 0; i < inc->num_channels; i++) {
724 if (inc->header && inc->multi_column_mode && column[0] != '\0')
725 g_string_assign(channel_name, column);
727 g_string_printf(channel_name, "%zu", i);
728 sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name->str);
730 g_string_free(channel_name, TRUE);
731 if (!check_header_in_reread(in)) {
737 * Calculate the minimum buffer size to store the set of samples
738 * of all channels (unit size). Determine a larger buffer size
739 * for datafeed submission that is a multiple of the unit size.
740 * Allocate the larger buffer, the "sample buffer" will point
741 * to a location within that large buffer later.
743 inc->sample_unit_size = (inc->num_channels + 7) / 8;
744 inc->datafeed_buf_size = CHUNK_SIZE;
745 inc->datafeed_buf_size *= inc->sample_unit_size;
746 inc->datafeed_buffer = g_malloc(inc->datafeed_buf_size);
747 inc->datafeed_buf_fill = 0;
758 * Gets called from initial_receive(), which runs until the end-of-line
759 * encoding of the input stream could get determined. Assumes that this
760 * routine receives enough buffered initial input data to either see the
761 * BOM when there is one, or that no BOM will follow when a text line
762 * termination sequence was seen. Silently drops the UTF-8 BOM sequence
763 * from the input buffer if one was seen. Does not care to protect
764 * against multiple execution or dropping the BOM multiple times --
765 * there should be at most one in the input stream.
767 static void initial_bom_check(const struct sr_input *in)
769 static const char *utf8_bom = "\xef\xbb\xbf";
771 if (in->buf->len < strlen(utf8_bom))
773 if (strncmp(in->buf->str, utf8_bom, strlen(utf8_bom)) != 0)
775 g_string_erase(in->buf, 0, strlen(utf8_bom));
778 static int initial_receive(const struct sr_input *in)
784 const char *termination;
786 initial_bom_check(in);
790 termination = get_line_termination(in->buf);
792 /* Don't have a full line yet. */
795 p = g_strrstr_len(in->buf->str, in->buf->len, termination);
797 /* Don't have a full line yet. */
799 len = p - in->buf->str - 1;
800 new_buf = g_string_new_len(in->buf->str, len);
801 g_string_append_c(new_buf, '\0');
803 inc->termination = g_strdup(termination);
805 if (in->buf->str[0] != '\0')
806 ret = initial_parse(in, new_buf);
810 g_string_free(new_buf, TRUE);
815 static int process_buffer(struct sr_input *in, gboolean is_eof)
817 struct sr_datafeed_packet packet;
818 struct sr_datafeed_meta meta;
819 struct sr_config *src;
823 size_t max_columns, l;
825 char *p, **lines, *line, **columns;
829 std_session_send_df_header(in->sdi);
831 if (inc->samplerate) {
832 packet.type = SR_DF_META;
833 packet.payload = &meta;
834 samplerate = inc->samplerate;
835 src = sr_config_new(SR_CONF_SAMPLERATE, g_variant_new_uint64(samplerate));
836 meta.config = g_slist_append(NULL, src);
837 sr_session_send(in->sdi, &packet);
838 g_slist_free(meta.config);
845 /* Limit the number of columns to parse. */
846 if (inc->multi_column_mode)
847 max_columns = inc->num_channels;
852 * Consider empty input non-fatal. Keep accumulating input until
853 * at least one full text line has become available. Grab the
854 * maximum amount of accumulated data that consists of full text
855 * lines, and process what has been received so far, leaving not
856 * yet complete lines for the next invocation.
858 * Enforce that all previously buffered data gets processed in
859 * the "EOF" condition. Do not insist in the presence of the
860 * termination sequence for the last line (may often be missing
861 * on Windows). A present termination sequence will just result
862 * in the "execution of an empty line", and does not harm.
867 p = in->buf->str + in->buf->len;
869 p = g_strrstr_len(in->buf->str, in->buf->len, inc->termination);
873 p += strlen(inc->termination);
875 g_strstrip(in->buf->str);
878 lines = g_strsplit_set(in->buf->str, delim_set, 0);
879 for (l = 0; lines[l]; l++) {
882 if (line[0] == '\0') {
883 sr_spew("Blank line %zu skipped.", inc->line_number);
887 /* Remove trailing comment. */
888 strip_comment(line, inc->comment);
889 if (line[0] == '\0') {
890 sr_spew("Comment-only line %zu skipped.", inc->line_number);
894 /* Skip the header line, its content was used as the channel names. */
896 sr_spew("Header line %zu skipped.", inc->line_number);
901 columns = parse_line(line, inc, max_columns);
903 sr_err("Error while parsing line %zu.", inc->line_number);
907 num_columns = g_strv_length(columns);
909 sr_err("Column %zu in line %zu is out of bounds.",
910 inc->first_column, inc->line_number);
916 * Ensure that the number of channels does not exceed the number
917 * of columns in multi column mode.
919 if (inc->multi_column_mode && num_columns < inc->num_channels) {
920 sr_err("Not enough columns for desired number of channels in line %zu.",
927 clear_logic_samples(inc);
929 if (inc->multi_column_mode)
930 ret = parse_multi_columns(columns, inc);
932 ret = parse_single_column(columns[0], inc);
939 /* Send sample data to the session bus (buffered). */
940 ret = queue_logic_samples(in);
942 sr_err("Sending samples failed.");
951 g_string_erase(in->buf, 0, p - in->buf->str);
956 static int receive(struct sr_input *in, GString *buf)
961 g_string_append_len(in->buf, buf->str, buf->len);
964 if (!inc->termination) {
965 ret = initial_receive(in);
966 if (ret == SR_ERR_NA)
967 /* Not enough data yet. */
969 else if (ret != SR_OK)
972 /* sdi is ready, notify frontend. */
973 in->sdi_ready = TRUE;
977 ret = process_buffer(in, FALSE);
982 static int end(struct sr_input *in)
988 ret = process_buffer(in, TRUE);
994 ret = flush_logic_samples(in);
1000 std_session_send_df_end(in->sdi);
1005 static void cleanup(struct sr_input *in)
1007 struct context *inc;
1009 keep_header_for_reread(in);
1013 g_free(inc->termination);
1014 inc->termination = NULL;
1015 g_free(inc->datafeed_buffer);
1016 inc->datafeed_buffer = NULL;
1019 static int reset(struct sr_input *in)
1021 struct context *inc = in->priv;
1024 inc->started = FALSE;
1025 g_string_truncate(in->buf, 0);
1043 static struct sr_option options[] = {
1044 [OPT_SINGLE_COL] = { "single-column", "Single column", "Enable single-column mode, using the specified column (>= 1); 0: multi-col. mode", NULL, NULL },
1045 [OPT_NUM_LOGIC] = { "numchannels", "Number of logic channels", "The number of (logic) channels (single-col. mode: number of bits beginning at 'first channel', LSB-first)", NULL, NULL },
1046 [OPT_DELIM] = { "delimiter", "Column delimiter", "The column delimiter (>= 1 characters)", NULL, NULL },
1047 [OPT_FORMAT] = { "format", "Data format (single-col. mode)", "The numeric format of the data (single-col. mode): bin, hex, oct", NULL, NULL },
1048 [OPT_COMMENT] = { "comment", "Comment character(s)", "The comment prefix character(s)", NULL, NULL },
1049 [OPT_RATE] = { "samplerate", "Samplerate (Hz)", "The sample rate (used during capture) in Hz", NULL, NULL },
1050 [OPT_FIRST_LOGIC] = { "first-channel", "First channel", "The column number of the first channel (multi-col. mode); bit position for the first channel (single-col. mode)", NULL, NULL },
1051 [OPT_HEADER] = { "header", "Interpret first line as header (multi-col. mode)", "Treat the first line as header with channel names (multi-col. mode)", NULL, NULL },
1052 [OPT_START] = { "startline", "Start line", "The line number at which to start processing samples (>= 1)", NULL, NULL },
1053 [OPT_MAX] = ALL_ZERO,
1056 static const struct sr_option *get_options(void)
1060 if (!options[0].def) {
1061 options[OPT_SINGLE_COL].def = g_variant_ref_sink(g_variant_new_int32(0));
1062 options[OPT_NUM_LOGIC].def = g_variant_ref_sink(g_variant_new_int32(0));
1063 options[OPT_DELIM].def = g_variant_ref_sink(g_variant_new_string(","));
1064 options[OPT_FORMAT].def = g_variant_ref_sink(g_variant_new_string("bin"));
1066 l = g_slist_append(l, g_variant_ref_sink(g_variant_new_string("bin")));
1067 l = g_slist_append(l, g_variant_ref_sink(g_variant_new_string("hex")));
1068 l = g_slist_append(l, g_variant_ref_sink(g_variant_new_string("oct")));
1069 options[OPT_FORMAT].values = l;
1070 options[OPT_COMMENT].def = g_variant_ref_sink(g_variant_new_string(";"));
1071 options[OPT_RATE].def = g_variant_ref_sink(g_variant_new_uint64(0));
1072 options[OPT_FIRST_LOGIC].def = g_variant_ref_sink(g_variant_new_int32(0));
1073 options[OPT_HEADER].def = g_variant_ref_sink(g_variant_new_boolean(FALSE));
1074 options[OPT_START].def = g_variant_ref_sink(g_variant_new_int32(1));
1080 SR_PRIV struct sr_input_module input_csv = {
1083 .desc = "Comma-separated values",
1084 .exts = (const char*[]){"csv", NULL},
1085 .options = get_options,