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. */
119 gboolean samplerate_sent;
121 /* Number of channels. */
124 /* Column delimiter character(s). */
127 /* Comment prefix character(s). */
130 /* Termination character(s) used in current stream. */
133 /* Determines if sample data is stored in multiple columns. */
134 gboolean multi_column_mode;
136 /* Column number of the sample data in single column mode. */
137 size_t single_column;
140 * Number of the first column to parse. Equivalent to the number of the
141 * first channel in multi column mode and the single column number in
142 * single column mode.
147 * Column number of the first channel in multi column mode and position of
148 * the bit for the first channel in single column mode.
150 size_t first_channel;
152 /* Line number to start processing. */
156 * Determines if the first line should be treated as header and used for
157 * channel names in multi column mode.
160 gboolean header_seen;
162 /* Format sample data is stored in single column mode. */
163 enum single_col_format format;
165 size_t sample_unit_size; /**!< Byte count for a single sample. */
166 uint8_t *sample_buffer; /**!< Buffer for a single sample. */
168 uint8_t *datafeed_buffer; /**!< Queue for datafeed submission. */
169 size_t datafeed_buf_size;
170 size_t datafeed_buf_fill;
172 /* Current line number. */
175 /* List of previously created sigrok channels. */
176 GSList *prev_sr_channels;
180 * Primitive operations to handle sample sets:
181 * - Keep a buffer for datafeed submission, capable of holding many
182 * samples (reduces call overhead, improves throughput).
183 * - Have a "current sample set" pointer reference one position in that
184 * large samples buffer.
185 * - Clear the current sample set before text line inspection, then set
186 * the bits which are found active in the current line of text input.
187 * Phrase the API such that call sites can be kept simple. Advance to
188 * the next sample set between lines, flush the larger buffer as needed
189 * (when it is full, or upon EOF).
192 static void clear_logic_samples(struct context *inc)
194 inc->sample_buffer = &inc->datafeed_buffer[inc->datafeed_buf_fill];
195 memset(inc->sample_buffer, 0, inc->sample_unit_size);
198 static void set_logic_level(struct context *inc, size_t ch_idx, int on)
200 size_t byte_idx, bit_idx;
203 if (ch_idx >= inc->num_channels)
208 byte_idx = ch_idx / 8;
209 bit_idx = ch_idx % 8;
210 bit_mask = 1 << bit_idx;
211 inc->sample_buffer[byte_idx] |= bit_mask;
214 static int flush_logic_samples(const struct sr_input *in)
217 struct sr_datafeed_packet packet;
218 struct sr_datafeed_meta meta;
219 struct sr_config *src;
221 struct sr_datafeed_logic logic;
225 if (!inc->datafeed_buf_fill)
228 if (inc->samplerate && !inc->samplerate_sent) {
229 packet.type = SR_DF_META;
230 packet.payload = &meta;
231 samplerate = inc->samplerate;
232 src = sr_config_new(SR_CONF_SAMPLERATE, g_variant_new_uint64(samplerate));
233 meta.config = g_slist_append(NULL, src);
234 sr_session_send(in->sdi, &packet);
235 g_slist_free(meta.config);
237 inc->samplerate_sent = TRUE;
240 memset(&packet, 0, sizeof(packet));
241 memset(&logic, 0, sizeof(logic));
242 packet.type = SR_DF_LOGIC;
243 packet.payload = &logic;
244 logic.unitsize = inc->sample_unit_size;
245 logic.length = inc->datafeed_buf_fill;
246 logic.data = inc->datafeed_buffer;
248 rc = sr_session_send(in->sdi, &packet);
252 inc->datafeed_buf_fill = 0;
256 static int queue_logic_samples(const struct sr_input *in)
263 inc->datafeed_buf_fill += inc->sample_unit_size;
264 if (inc->datafeed_buf_fill == inc->datafeed_buf_size) {
265 rc = flush_logic_samples(in);
273 * Primitive operations for text input: Strip comments off text lines.
274 * Split text lines into columns. Process input text for individual
278 static void strip_comment(char *buf, const GString *prefix)
285 if ((ptr = strstr(buf, prefix->str))) {
291 /* TODO Move parse_line() here. */
294 * @brief Parse a text field into multiple bits, binary presentation.
296 * @param[in] str The input text, a run of 0/1 digits.
297 * @param[in] inc The input module's context.
299 * @retval SR_OK Success.
300 * @retval SR_ERR Invalid input data (empty, or format error).
302 * This routine modifies the logic levels in the current sample set,
303 * based on the text input which consists of binary digits.
305 static int parse_binstr(const char *str, struct context *inc)
310 length = strlen(str);
312 sr_err("Column %zu in line %zu is empty.", inc->single_column,
317 i = inc->first_channel;
318 for (j = 0; i < length && j < inc->num_channels; i++, j++) {
319 c = str[length - i - 1];
321 set_logic_level(inc, j, 1);
322 } else if (c != '0') {
323 sr_err("Invalid text '%s' in binary column %zu in line %zu.",
324 str, inc->single_column, inc->line_number);
333 * @brief Parse a text field into multiple bits, hexadecimal presentation.
335 * @param[in] str The input text, a run of hex digits.
336 * @param[in] inc The input module's context.
338 * @retval SR_OK Success.
339 * @retval SR_ERR Invalid input data (empty, or format error).
341 * This routine modifies the logic levels in the current sample set,
342 * based on the text input which consists of hexadecimal digits.
344 static int parse_hexstr(const char *str, struct context *inc)
346 gsize i, j, k, length;
350 length = strlen(str);
352 sr_err("Column %zu in line %zu is empty.", inc->single_column,
357 /* Calculate the position of the first hexadecimal digit. */
358 i = inc->first_channel / 4;
359 for (j = 0; i < length && j < inc->num_channels; i++) {
360 c = str[length - i - 1];
361 if (!g_ascii_isxdigit(c)) {
362 sr_err("Invalid text '%s' in hex column %zu in line %zu.",
363 str, inc->single_column, inc->line_number);
367 value = g_ascii_xdigit_value(c);
368 k = (inc->first_channel + j) % 4;
369 for (; j < inc->num_channels && k < 4; j++, k++) {
370 set_logic_level(inc, j, value & (1 << k));
378 * @brief Parse a text field into multiple bits, octal presentation.
380 * @param[in] str The input text, a run of oct digits.
381 * @param[in] inc The input module's context.
383 * @retval SR_OK Success.
384 * @retval SR_ERR Invalid input data (empty, or format error).
386 * This routine modifies the logic levels in the current sample set,
387 * based on the text input which consists of octal digits.
389 static int parse_octstr(const char *str, struct context *inc)
391 gsize i, j, k, length;
395 length = strlen(str);
397 sr_err("Column %zu in line %zu is empty.", inc->single_column,
402 /* Calculate the position of the first octal digit. */
403 i = inc->first_channel / 3;
404 for (j = 0; i < length && j < inc->num_channels; i++) {
405 c = str[length - i - 1];
406 if (c < '0' || c > '7') {
407 sr_err("Invalid text '%s' in oct column %zu in line %zu.",
408 str, inc->single_column, inc->line_number);
412 value = g_ascii_xdigit_value(c);
413 k = (inc->first_channel + j) % 3;
414 for (; j < inc->num_channels && k < 3; j++, k++) {
415 set_logic_level(inc, j, value & (1 << k));
422 static int parse_single_column(const char *column, struct context *inc)
424 switch (inc->format) {
426 return parse_binstr(column, inc);
428 return parse_hexstr(column, inc);
430 return parse_octstr(column, inc);
437 * @brief Splits a text line into a set of columns.
439 * @param[in] buf The input text line to split.
440 * @param[in] inc The input module's context.
441 * @param[in] max_cols The maximum column count, negative to get all of them.
443 * @returns An array of strings, representing the columns' text.
445 * This routine splits a text line on previously determined separators.
446 * A previously determined set of columns gets isolated (starting at a
447 * first position and spanning a given number of columns). A negative
448 * value for the maximum number of columns results in no restriction on
449 * the result set's length (the first columns still get trimmed off).
451 static char **parse_line(char *buf, struct context *inc, ssize_t max_cols)
453 const char *str, *remainder;
464 str = strstr(remainder, inc->delimiter->str);
465 while (str && max_cols) {
466 if (seen >= inc->first_column) {
467 column = g_strndup(remainder, str - remainder);
468 list = g_slist_prepend(list, g_strstrip(column));
474 remainder = str + inc->delimiter->len;
475 str = strstr(remainder, inc->delimiter->str);
479 if (buf[0] && max_cols && seen >= inc->first_column) {
480 column = g_strdup(remainder);
481 list = g_slist_prepend(list, g_strstrip(column));
485 if (!(columns = g_try_new(char *, taken + 1)))
487 columns[taken--] = NULL;
488 for (l = list; l; l = l->next)
489 columns[taken--] = l->data;
497 * @brief Picks logic levels from multiple binary colomns, one channel per column.
499 * @param[in] columns The text fields which are kept in the columns.
500 * @param[in] inc The input module's context.
502 * @retval SR_OK Success.
503 * @retval SR_ERR Insufficient input, or syntax errors.
505 * This routine exclusively handles binary input where one logic channel
506 * occupies one column each. All channels are expected to reside in one
507 * consequtive run of columns.
509 static int parse_multi_columns(char **columns, struct context *inc)
514 for (i = 0; i < inc->num_channels; i++) {
516 if (strcmp(column, "1") == 0) {
517 set_logic_level(inc, i, 1);
518 } else if (!strlen(column)) {
519 sr_err("Column %zu in line %zu is empty.",
520 inc->first_channel + i, inc->line_number);
522 } else if (strcmp(column, "0") != 0) {
523 sr_err("Invalid text '%s' in bit column %zu in line %zu.",
524 column, inc->first_channel + i,
533 static int init(struct sr_input *in, GHashTable *options)
538 in->sdi = g_malloc0(sizeof(struct sr_dev_inst));
539 in->priv = inc = g_malloc0(sizeof(struct context));
541 inc->single_column = g_variant_get_uint32(g_hash_table_lookup(options, "single-column"));
542 inc->multi_column_mode = inc->single_column == 0;
544 inc->num_channels = g_variant_get_uint32(g_hash_table_lookup(options, "numchannels"));
546 inc->delimiter = g_string_new(g_variant_get_string(
547 g_hash_table_lookup(options, "delimiter"), NULL));
548 if (inc->delimiter->len == 0) {
549 sr_err("Delimiter must be at least one character.");
553 s = g_variant_get_string(g_hash_table_lookup(options, "format"), NULL);
554 if (!g_ascii_strncasecmp(s, "bin", 3)) {
555 inc->format = FORMAT_BIN;
556 } else if (!g_ascii_strncasecmp(s, "hex", 3)) {
557 inc->format = FORMAT_HEX;
558 } else if (!g_ascii_strncasecmp(s, "oct", 3)) {
559 inc->format = FORMAT_OCT;
561 sr_err("Invalid format: '%s'", s);
565 inc->comment = g_string_new(g_variant_get_string(
566 g_hash_table_lookup(options, "comment"), NULL));
567 if (g_string_equal(inc->comment, inc->delimiter)) {
568 /* That's never going to work. Likely the result of the user
569 * setting the delimiter to ; -- the default comment. Clearing
570 * the comment setting will work in that case. */
571 g_string_truncate(inc->comment, 0);
574 inc->samplerate = g_variant_get_uint64(g_hash_table_lookup(options, "samplerate"));
576 inc->first_channel = g_variant_get_uint32(g_hash_table_lookup(options, "first-channel"));
578 inc->use_header = g_variant_get_boolean(g_hash_table_lookup(options, "header"));
580 inc->start_line = g_variant_get_uint32(g_hash_table_lookup(options, "startline"));
581 if (inc->start_line < 1) {
582 sr_err("Invalid start line %zu.", inc->start_line);
586 if (inc->multi_column_mode)
587 inc->first_column = inc->first_channel;
589 inc->first_column = inc->single_column;
591 if (!inc->multi_column_mode && !inc->num_channels) {
592 sr_err("Number of channels needs to be specified in single column mode.");
600 * Check the channel list for consistency across file re-import. See
601 * the VCD input module for more details and motivation.
604 static void keep_header_for_reread(const struct sr_input *in)
609 g_slist_free_full(inc->prev_sr_channels, sr_channel_free_cb);
610 inc->prev_sr_channels = in->sdi->channels;
611 in->sdi->channels = NULL;
614 static int check_header_in_reread(const struct sr_input *in)
623 if (!inc->prev_sr_channels)
626 if (sr_channel_lists_differ(inc->prev_sr_channels, in->sdi->channels)) {
627 sr_err("Channel list change not supported for file re-read.");
630 g_slist_free_full(in->sdi->channels, sr_channel_free_cb);
631 in->sdi->channels = inc->prev_sr_channels;
632 inc->prev_sr_channels = NULL;
637 static const char *delim_set = "\r\n";
639 static const char *get_line_termination(GString *buf)
644 if (g_strstr_len(buf->str, buf->len, "\r\n"))
646 else if (memchr(buf->str, '\n', buf->len))
648 else if (memchr(buf->str, '\r', buf->len))
654 static int initial_parse(const struct sr_input *in, GString *buf)
657 GString *channel_name;
658 size_t num_columns, i;
659 size_t line_number, l;
661 char **lines, *line, **columns, *column;
668 lines = g_strsplit_set(buf->str, delim_set, 0);
669 for (l = 0; lines[l]; l++) {
672 if (inc->start_line > line_number) {
673 sr_spew("Line %zu skipped.", line_number);
676 if (line[0] == '\0') {
677 sr_spew("Blank line %zu skipped.", line_number);
680 strip_comment(line, inc->comment);
681 if (line[0] == '\0') {
682 sr_spew("Comment-only line %zu skipped.", line_number);
686 /* Reached first proper line. */
690 /* Not enough data for a proper line yet. */
696 * In order to determine the number of columns parse the current line
697 * without limiting the number of columns.
699 columns = parse_line(line, inc, -1);
701 sr_err("Error while parsing line %zu.", line_number);
705 num_columns = g_strv_length(columns);
707 /* Ensure that the first column is not out of bounds. */
709 sr_err("Column %zu in line %zu is out of bounds.",
710 inc->first_column, line_number);
715 if (inc->multi_column_mode) {
717 * Detect the number of channels in multi column mode
718 * automatically if not specified.
720 if (!inc->num_channels) {
721 inc->num_channels = num_columns;
722 sr_dbg("Number of auto-detected channels: %zu.",
727 * Ensure that the number of channels does not exceed the number
728 * of columns in multi column mode.
730 if (num_columns < inc->num_channels) {
731 sr_err("Not enough columns for desired number of channels in line %zu.",
738 channel_name = g_string_sized_new(64);
739 for (i = 0; i < inc->num_channels; i++) {
741 if (inc->use_header && inc->multi_column_mode && column[0] != '\0')
742 g_string_assign(channel_name, column);
744 g_string_printf(channel_name, "%zu", i);
745 sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name->str);
747 g_string_free(channel_name, TRUE);
748 if (!check_header_in_reread(in)) {
754 * Calculate the minimum buffer size to store the set of samples
755 * of all channels (unit size). Determine a larger buffer size
756 * for datafeed submission that is a multiple of the unit size.
757 * Allocate the larger buffer, the "sample buffer" will point
758 * to a location within that large buffer later.
760 inc->sample_unit_size = (inc->num_channels + 7) / 8;
761 inc->datafeed_buf_size = CHUNK_SIZE;
762 inc->datafeed_buf_size *= inc->sample_unit_size;
763 inc->datafeed_buffer = g_malloc(inc->datafeed_buf_size);
764 inc->datafeed_buf_fill = 0;
775 * Gets called from initial_receive(), which runs until the end-of-line
776 * encoding of the input stream could get determined. Assumes that this
777 * routine receives enough buffered initial input data to either see the
778 * BOM when there is one, or that no BOM will follow when a text line
779 * termination sequence was seen. Silently drops the UTF-8 BOM sequence
780 * from the input buffer if one was seen. Does not care to protect
781 * against multiple execution or dropping the BOM multiple times --
782 * there should be at most one in the input stream.
784 static void initial_bom_check(const struct sr_input *in)
786 static const char *utf8_bom = "\xef\xbb\xbf";
788 if (in->buf->len < strlen(utf8_bom))
790 if (strncmp(in->buf->str, utf8_bom, strlen(utf8_bom)) != 0)
792 g_string_erase(in->buf, 0, strlen(utf8_bom));
795 static int initial_receive(const struct sr_input *in)
801 const char *termination;
803 initial_bom_check(in);
807 termination = get_line_termination(in->buf);
809 /* Don't have a full line yet. */
812 p = g_strrstr_len(in->buf->str, in->buf->len, termination);
814 /* Don't have a full line yet. */
816 len = p - in->buf->str - 1;
817 new_buf = g_string_new_len(in->buf->str, len);
818 g_string_append_c(new_buf, '\0');
820 inc->termination = g_strdup(termination);
822 if (in->buf->str[0] != '\0')
823 ret = initial_parse(in, new_buf);
827 g_string_free(new_buf, TRUE);
832 static int process_buffer(struct sr_input *in, gboolean is_eof)
836 size_t max_columns, l;
838 char *p, **lines, *line, **columns;
842 std_session_send_df_header(in->sdi);
846 /* Limit the number of columns to parse. */
847 if (inc->multi_column_mode)
848 max_columns = inc->num_channels;
853 * Consider empty input non-fatal. Keep accumulating input until
854 * at least one full text line has become available. Grab the
855 * maximum amount of accumulated data that consists of full text
856 * lines, and process what has been received so far, leaving not
857 * yet complete lines for the next invocation.
859 * Enforce that all previously buffered data gets processed in
860 * the "EOF" condition. Do not insist in the presence of the
861 * termination sequence for the last line (may often be missing
862 * on Windows). A present termination sequence will just result
863 * in the "execution of an empty line", and does not harm.
868 p = in->buf->str + in->buf->len;
870 p = g_strrstr_len(in->buf->str, in->buf->len, inc->termination);
874 p += strlen(inc->termination);
876 g_strstrip(in->buf->str);
879 lines = g_strsplit_set(in->buf->str, delim_set, 0);
880 for (l = 0; lines[l]; l++) {
883 if (line[0] == '\0') {
884 sr_spew("Blank line %zu skipped.", inc->line_number);
888 /* Remove trailing comment. */
889 strip_comment(line, inc->comment);
890 if (line[0] == '\0') {
891 sr_spew("Comment-only line %zu skipped.", inc->line_number);
895 /* Skip the header line, its content was used as the channel names. */
896 if (inc->use_header && !inc->header_seen) {
897 sr_spew("Header line %zu skipped.", inc->line_number);
898 inc->header_seen = TRUE;
902 columns = parse_line(line, inc, max_columns);
904 sr_err("Error while parsing line %zu.", inc->line_number);
908 num_columns = g_strv_length(columns);
910 sr_err("Column %zu in line %zu is out of bounds.",
911 inc->first_column, inc->line_number);
917 * Ensure that the number of channels does not exceed the number
918 * of columns in multi column mode.
920 if (inc->multi_column_mode && num_columns < inc->num_channels) {
921 sr_err("Not enough columns for desired number of channels in line %zu.",
928 clear_logic_samples(inc);
930 if (inc->multi_column_mode)
931 ret = parse_multi_columns(columns, inc);
933 ret = parse_single_column(columns[0], inc);
940 /* Send sample data to the session bus (buffered). */
941 ret = queue_logic_samples(in);
943 sr_err("Sending samples failed.");
952 g_string_erase(in->buf, 0, p - in->buf->str);
957 static int receive(struct sr_input *in, GString *buf)
962 g_string_append_len(in->buf, buf->str, buf->len);
965 if (!inc->termination) {
966 ret = initial_receive(in);
967 if (ret == SR_ERR_NA)
968 /* Not enough data yet. */
970 else if (ret != SR_OK)
973 /* sdi is ready, notify frontend. */
974 in->sdi_ready = TRUE;
978 ret = process_buffer(in, FALSE);
983 static int end(struct sr_input *in)
989 ret = process_buffer(in, TRUE);
995 ret = flush_logic_samples(in);
1001 std_session_send_df_end(in->sdi);
1006 static void cleanup(struct sr_input *in)
1008 struct context *inc;
1010 keep_header_for_reread(in);
1014 g_free(inc->termination);
1015 inc->termination = NULL;
1016 g_free(inc->datafeed_buffer);
1017 inc->datafeed_buffer = NULL;
1020 static int reset(struct sr_input *in)
1022 struct context *inc = in->priv;
1025 inc->started = FALSE;
1026 g_string_truncate(in->buf, 0);
1044 static struct sr_option options[] = {
1045 [OPT_SINGLE_COL] = { "single-column", "Single column", "Enable single-column mode, using the specified column (>= 1); 0: multi-col. mode", NULL, NULL },
1046 [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 },
1047 [OPT_DELIM] = { "delimiter", "Column delimiter", "The column delimiter (>= 1 characters)", NULL, NULL },
1048 [OPT_FORMAT] = { "format", "Data format (single-col. mode)", "The numeric format of the data (single-col. mode): bin, hex, oct", NULL, NULL },
1049 [OPT_COMMENT] = { "comment", "Comment character(s)", "The comment prefix character(s)", NULL, NULL },
1050 [OPT_RATE] = { "samplerate", "Samplerate (Hz)", "The sample rate (used during capture) in Hz", NULL, NULL },
1051 [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 },
1052 [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 },
1053 [OPT_START] = { "startline", "Start line", "The line number at which to start processing samples (>= 1)", NULL, NULL },
1054 [OPT_MAX] = ALL_ZERO,
1057 static const struct sr_option *get_options(void)
1061 if (!options[0].def) {
1062 options[OPT_SINGLE_COL].def = g_variant_ref_sink(g_variant_new_int32(0));
1063 options[OPT_NUM_LOGIC].def = g_variant_ref_sink(g_variant_new_int32(0));
1064 options[OPT_DELIM].def = g_variant_ref_sink(g_variant_new_string(","));
1065 options[OPT_FORMAT].def = g_variant_ref_sink(g_variant_new_string("bin"));
1067 l = g_slist_append(l, g_variant_ref_sink(g_variant_new_string("bin")));
1068 l = g_slist_append(l, g_variant_ref_sink(g_variant_new_string("hex")));
1069 l = g_slist_append(l, g_variant_ref_sink(g_variant_new_string("oct")));
1070 options[OPT_FORMAT].values = l;
1071 options[OPT_COMMENT].def = g_variant_ref_sink(g_variant_new_string(";"));
1072 options[OPT_RATE].def = g_variant_ref_sink(g_variant_new_uint64(0));
1073 options[OPT_FIRST_LOGIC].def = g_variant_ref_sink(g_variant_new_int32(0));
1074 options[OPT_HEADER].def = g_variant_ref_sink(g_variant_new_boolean(FALSE));
1075 options[OPT_START].def = g_variant_ref_sink(g_variant_new_int32(1));
1081 SR_PRIV struct sr_input_module input_csv = {
1084 .desc = "Comma-separated values",
1085 .exts = (const char*[]){"csv", NULL},
1086 .options = get_options,