[sigrok-cli.git] / parsers.c

/*
 * This file is part of the sigrok-cli project.
 *
 * Copyright (C) 2011 Bert Vermeulen <bert@biot.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 "sigrok-cli.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <glib.h>

extern struct sr_context *sr_ctx;

struct sr_channel *find_channel(GSList *channellist, const char *channelname)
{
	struct sr_channel *ch;
	GSList *l;

	ch = NULL;
	for (l = channellist; l; l = l->next) {
		ch = l->data;
		if (!strcmp(ch->name, channelname))
			break;
	}
	ch = l ? l->data : NULL;

	return ch;
}

GSList *parse_channelstring(struct sr_dev_inst *sdi, const char *channelstring)
{
	struct sr_channel *ch;
	GSList *channellist;
	int ret, n, b, e, i;
	char **tokens, **range, **names, *eptr, str[8];

	if (!channelstring || !channelstring[0])
		/* Use all channels by default. */
		return g_slist_copy(sdi->channels);

	ret = SR_OK;
	range = NULL;
	names = NULL;
	channellist = NULL;
	tokens = g_strsplit(channelstring, ",", 0);
	for (i = 0; tokens[i]; i++) {
		if (tokens[i][0] == '\0') {
			g_critical("Invalid empty channel.");
			ret = SR_ERR;
			break;
		}
		if (strchr(tokens[i], '-')) {
			/* A range of channels in the form a-b. This will only work
			 * if the channels are named as numbers -- so every channel
			 * in the range must exist as a channel name string in the
			 * device. */
			range = g_strsplit(tokens[i], "-", 2);
			if (!range[0] || !range[1] || range[2]) {
				/* Need exactly two arguments. */
				g_critical("Invalid channel syntax '%s'.", tokens[i]);
				ret = SR_ERR;
				goto range_fail;
			}

			b = strtol(range[0], &eptr, 10);
			if (eptr == range[0] || *eptr != '\0') {
				g_critical("Invalid channel '%s'.", range[0]);
				ret = SR_ERR;
				goto range_fail;
			}
			e = strtol(range[1], NULL, 10);
			if (eptr == range[1] || *eptr != '\0') {
				g_critical("Invalid channel '%s'.", range[1]);
				ret = SR_ERR;
				goto range_fail;
			}
			if (b < 0 || b >= e) {
				g_critical("Invalid channel range '%s'.", tokens[i]);
				ret = SR_ERR;
				goto range_fail;
			}

			while (b <= e) {
				n = snprintf(str, 8, "%d", b);
				if (n < 0 || n > 8) {
					g_critical("Invalid channel '%d'.", b);
					ret = SR_ERR;
					break;
				}
				ch = find_channel(sdi->channels, str);
				if (!ch) {
					g_critical("unknown channel '%d'.", b);
					ret = SR_ERR;
					break;
				}
				channellist = g_slist_append(channellist, ch);
				b++;
			}
range_fail:
			if (range)
				g_strfreev(range);

			if (ret != SR_OK)
				break;
		} else {
			names = g_strsplit(tokens[i], "=", 2);
			if (!names[0] || (names[1] && names[2])) {
				/* Need one or two arguments. */
				g_critical("Invalid channel '%s'.", tokens[i]);
				g_strfreev(names);
				ret = SR_ERR;
				break;
			}

			ch = find_channel(sdi->channels, names[0]);
			if (!ch) {
				g_critical("unknown channel '%s'.", names[0]);
				g_strfreev(names);
				ret = SR_ERR;
				break;
			}
			if (names[1]) {
				/* Rename channel. */
				g_free(ch->name);
				ch->name = g_strdup(names[1]);
			}
			channellist = g_slist_append(channellist, ch);

			g_strfreev(names);
		}
	}

	if (ret != SR_OK) {
		g_slist_free(channellist);
		channellist = NULL;
	}

	g_strfreev(tokens);

	return channellist;
}

int parse_trigger_match(char c)
{
	int match;

	if (c == '0')
		match = SR_TRIGGER_ZERO;
	else if (c == '1')
		match = SR_TRIGGER_ONE;
	else if (c == 'r')
		match = SR_TRIGGER_RISING;
	else if (c == 'f')
		match = SR_TRIGGER_FALLING;
	else if (c == 'e')
		match = SR_TRIGGER_EDGE;
	else if (c == 'o')
		match = SR_TRIGGER_OVER;
	else if (c == 'u')
		match = SR_TRIGGER_UNDER;
	else
		match = 0;

	return match;
}

int parse_triggerstring(const struct sr_dev_inst *sdi, const char *s,
		struct sr_trigger **trigger)
{
	struct sr_channel *ch;
	struct sr_trigger_stage *stage;
	GVariant *gvar;
	GSList *l;
	gsize num_matches;
	gboolean found_match, error;
	const int32_t *matches;
	int32_t match;
	unsigned int j;
	int t, i;
	char **tokens, *sep;

	if (sr_config_list(sdi->driver, sdi, NULL, SR_CONF_TRIGGER_MATCH,
			&gvar) != SR_OK) {
		g_critical("Device doesn't support any triggers.");
		return FALSE;
	}
	matches = g_variant_get_fixed_array(gvar, &num_matches, sizeof(int32_t));

	*trigger = sr_trigger_new(NULL);
	error = FALSE;
	tokens = g_strsplit(s, ",", -1);
	for (i = 0; tokens[i]; i++) {
		if (!(sep = strchr(tokens[i], '='))) {
			g_critical("Invalid trigger '%s'.", tokens[i]);
			error = TRUE;
			break;
		}
		*sep++ = 0;
		ch = NULL;
		for (l = sdi->channels; l; l = l->next) {
			ch = l->data;
			if (ch->enabled && !strcmp(ch->name, tokens[i]))
				break;
			ch = NULL;
		}
		if (!ch) {
			g_critical("Invalid channel '%s'.", tokens[i]);
			error = TRUE;
			break;
		}
		for (t = 0; sep[t]; t++) {
			if (!(match = parse_trigger_match(sep[t]))) {
				g_critical("Invalid trigger match '%c'.", sep[t]);
				error = TRUE;
				break;
			}
			found_match = FALSE;
			for (j = 0; j < num_matches; j++) {
				if (matches[j] == match) {
					found_match = TRUE;
					break;
				}
			}
			if (!found_match) {
				g_critical("Trigger match '%c' not supported by device.", sep[t]);
				error = TRUE;
				break;
			}
			/* Make sure this ends up in the right stage, creating
			 * them as needed. */
			while (!(stage = g_slist_nth_data((*trigger)->stages, t)))
				sr_trigger_stage_add(*trigger);
			if (sr_trigger_match_add(stage, ch, match, 0) != SR_OK) {
				error = TRUE;
				break;
			}
		}
	}
	g_strfreev(tokens);
	g_variant_unref(gvar);

	if (error)
		sr_trigger_free(*trigger);

	return !error;
}

GHashTable *parse_generic_arg(const char *arg, gboolean sep_first)
{
	GHashTable *hash;
	int i;
	char **elements, *e;

	if (!arg || !arg[0])
		return NULL;

	i = 0;
	hash = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, g_free);
	elements = g_strsplit(arg, ":", 0);
	if (sep_first)
		g_hash_table_insert(hash, g_strdup("sigrok_key"),
				g_strdup(elements[i++]));
	for (; elements[i]; i++) {
		e = strchr(elements[i], '=');
		if (!e)
			g_hash_table_insert(hash, g_strdup(elements[i]), NULL);
		else {
			*e++ = '\0';
			g_hash_table_insert(hash, g_strdup(elements[i]), g_strdup(e));
		}
	}
	g_strfreev(elements);

	return hash;
}

GHashTable *generic_arg_to_opt(const struct sr_option **opts, GHashTable *genargs)
{
	GHashTable *hash;
	GVariant *gvar;
	int i;
	char *s;
	gboolean b;

	hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
			(GDestroyNotify)g_variant_unref);
	for (i = 0; opts[i]; i++) {
		if (!(s = g_hash_table_lookup(genargs, opts[i]->id)))
			continue;
		if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT32)) {
			gvar = g_variant_new_uint32(strtoul(s, NULL, 10));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_INT32)) {
			gvar = g_variant_new_int32(strtoul(s, NULL, 10));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT64)) {
			gvar = g_variant_new_uint64(strtoul(s, NULL, 10));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_DOUBLE)) {
			gvar = g_variant_new_double(strtod(s, NULL));
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_STRING)) {
			gvar = g_variant_new_string(s);
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_BOOLEAN)) {
			b = TRUE;
			if (0 == strcmp(s, "false") || 0 == strcmp(s, "no")) {
				b = FALSE;
			} else if (!(0 == strcmp(s, "true") || 0 == strcmp(s, "yes"))) {
				g_critical("Unable to convert '%s' to boolean!", s);
			}

			gvar = g_variant_new_boolean(b);
			g_hash_table_insert(hash, g_strdup(opts[i]->id),
					g_variant_ref_sink(gvar));
		} else {
			g_critical("Don't know GVariant type for option '%s'!", opts[i]->id);
		 }
	}

	return hash;
}

static char *strcanon(const char *str)
{
	int p0, p1;
	char *s;

	/* Returns newly allocated string. */
	s = g_ascii_strdown(str, -1);
	for (p0 = p1 = 0; str[p0]; p0++) {
		if ((s[p0] >= 'a' && s[p0] <= 'z')
				|| (s[p0] >= '0' && s[p0] <= '9'))
			s[p1++] = s[p0];
	}
	s[p1] = '\0';

	return s;
}

int canon_cmp(const char *str1, const char *str2)
{
	int ret;
	char *s1, *s2;

	s1 = strcanon(str1);
	s2 = strcanon(str2);
	ret = g_ascii_strcasecmp(s1, s2);
	g_free(s2);
	g_free(s1);

	return ret;
}

/* Convert driver options hash to GSList of struct sr_config. */
static GSList *hash_to_hwopt(GHashTable *hash)
{
	struct sr_config *src;
	GList *gl, *keys;
	GSList *opts;
	char *key;

	keys = g_hash_table_get_keys(hash);
	opts = NULL;
	for (gl = keys; gl; gl = gl->next) {
		key = gl->data;
		src = g_malloc(sizeof(struct sr_config));
		if (opt_to_gvar(key, g_hash_table_lookup(hash, key), src) != 0)
			return NULL;
		opts = g_slist_append(opts, src);
	}
	g_list_free(keys);

	return opts;
}

int parse_driver(char *arg, struct sr_dev_driver **driver, GSList **drvopts)
{
	struct sr_dev_driver **drivers;
	GHashTable *drvargs;
	int i;
	char *drvname;

	drvargs = parse_generic_arg(arg, TRUE);

	drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
	g_hash_table_remove(drvargs, "sigrok_key");
	*driver = NULL;
	drivers = sr_driver_list();
	for (i = 0; drivers[i]; i++) {
		if (strcmp(drivers[i]->name, drvname))
			continue;
		*driver = drivers[i];
	}
	if (!*driver) {
		g_critical("Driver %s not found.", drvname);
		g_hash_table_destroy(drvargs);
		g_free(drvname);
		return FALSE;
	}
	g_free(drvname);
	if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
		g_critical("Failed to initialize driver.");
		g_hash_table_destroy(drvargs);
		return FALSE;
	}

	if (drvopts) {
		*drvopts = NULL;
		if (g_hash_table_size(drvargs) > 0) {
			if (!(*drvopts = hash_to_hwopt(drvargs))) {
				/* Unknown options, already logged. */
				g_hash_table_destroy(drvargs);
				return FALSE;
			}
		}
	}

	g_hash_table_destroy(drvargs);

	return TRUE;
}
Commit	Line	Data
43e5747a	1	/*
630293b4	2	* This file is part of the sigrok-cli project.
43e5747a UH	3	*
	4	* Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
	5	*
	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.
	10	*
	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.
	15	*
	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/>.
	18	*/
	19
20fb52e0	20	#include "sigrok-cli.h"
43e5747a UH	21	#include <stdio.h>
	22	#include <stdlib.h>
	23	#include <stdint.h>
	24	#include <string.h>
	25	#include <glib.h>
43e5747a	26
d75c8529 BV	27	extern struct sr_context *sr_ctx;
d75c8529 BV	28
029d73fe	29	struct sr_channel find_channel(GSList channellist, const char *channelname)
43e5747a	30	{
029d73fe	31	struct sr_channel *ch;
497f5362	32	GSList *l;
43e5747a	33
029d73fe UH	34	ch = NULL;
	35	for (l = channellist; l; l = l->next) {
	36	ch = l->data;
	37	if (!strcmp(ch->name, channelname))
497f5362	38	break;
c2c4a0de	39	}
029d73fe	40	ch = l ? l->data : NULL;
497f5362	41
029d73fe	42	return ch;
497f5362 BV	43	}
497f5362 BV	44
029d73fe	45	GSList parse_channelstring(struct sr_dev_inst sdi, const char *channelstring)
497f5362	46	{
029d73fe UH	47	struct sr_channel *ch;
029d73fe UH	48	GSList *channellist;
497f5362 BV	49	int ret, n, b, e, i;
497f5362 BV	50	char tokens, range, *names, eptr, str[8];
43e5747a	51
029d73fe UH	52	if (!channelstring \|\| !channelstring[0])
	53	/* Use all channels by default. */
	54	return g_slist_copy(sdi->channels);
497f5362 BV	55
	56	ret = SR_OK;
	57	range = NULL;
66149c20	58	names = NULL;
029d73fe UH	59	channellist = NULL;
029d73fe UH	60	tokens = g_strsplit(channelstring, ",", 0);
43e5747a	61	for (i = 0; tokens[i]; i++) {
497f5362	62	if (tokens[i][0] == '\0') {
029d73fe	63	g_critical("Invalid empty channel.");
497f5362 BV	64	ret = SR_ERR;
	65	break;
	66	}
43e5747a	67	if (strchr(tokens[i], '-')) {
029d73fe UH	68	/* A range of channels in the form a-b. This will only work
	69	* if the channels are named as numbers -- so every channel
	70	* in the range must exist as a channel name string in the
497f5362	71	* device. */
43e5747a UH	72	range = g_strsplit(tokens[i], "-", 2);
	73	if (!range[0] \|\| !range[1] \|\| range[2]) {
	74	/* Need exactly two arguments. */
029d73fe	75	g_critical("Invalid channel syntax '%s'.", tokens[i]);
497f5362	76	ret = SR_ERR;
8ec20386	77	goto range_fail;
43e5747a UH	78	}
43e5747a UH	79
497f5362 BV	80	b = strtol(range[0], &eptr, 10);
497f5362 BV	81	if (eptr == range[0] \|\| *eptr != '\0') {
029d73fe	82	g_critical("Invalid channel '%s'.", range[0]);
497f5362	83	ret = SR_ERR;
8ec20386	84	goto range_fail;
497f5362	85	}
43e5747a	86	e = strtol(range[1], NULL, 10);
497f5362	87	if (eptr == range[1] \|\| *eptr != '\0') {
029d73fe	88	g_critical("Invalid channel '%s'.", range[1]);
497f5362	89	ret = SR_ERR;
8ec20386	90	goto range_fail;
497f5362 BV	91	}
497f5362 BV	92	if (b < 0 \|\| b >= e) {
029d73fe	93	g_critical("Invalid channel range '%s'.", tokens[i]);
497f5362	94	ret = SR_ERR;
8ec20386	95	goto range_fail;
43e5747a UH	96	}
	97
	98	while (b <= e) {
497f5362 BV	99	n = snprintf(str, 8, "%d", b);
497f5362 BV	100	if (n < 0 \|\| n > 8) {
029d73fe	101	g_critical("Invalid channel '%d'.", b);
497f5362 BV	102	ret = SR_ERR;
	103	break;
	104	}
029d73fe UH	105	ch = find_channel(sdi->channels, str);
	106	if (!ch) {
	107	g_critical("unknown channel '%d'.", b);
497f5362 BV	108	ret = SR_ERR;
	109	break;
	110	}
029d73fe	111	channellist = g_slist_append(channellist, ch);
43e5747a UH	112	b++;
43e5747a UH	113	}
8ec20386 DJ	114	range_fail:
	115	if (range)
	116	g_strfreev(range);
	117
497f5362 BV	118	if (ret != SR_OK)
497f5362 BV	119	break;
43e5747a	120	} else {
497f5362 BV	121	names = g_strsplit(tokens[i], "=", 2);
	122	if (!names[0] \|\| (names[1] && names[2])) {
	123	/* Need one or two arguments. */
029d73fe	124	g_critical("Invalid channel '%s'.", tokens[i]);
6df458b7	125	g_strfreev(names);
497f5362	126	ret = SR_ERR;
43e5747a UH	127	break;
	128	}
	129
029d73fe UH	130	ch = find_channel(sdi->channels, names[0]);
	131	if (!ch) {
	132	g_critical("unknown channel '%s'.", names[0]);
6df458b7	133	g_strfreev(names);
497f5362 BV	134	ret = SR_ERR;
	135	break;
	136	}
	137	if (names[1]) {
029d73fe UH	138	/* Rename channel. */
	139	g_free(ch->name);
	140	ch->name = g_strdup(names[1]);
43e5747a	141	}
029d73fe	142	channellist = g_slist_append(channellist, ch);
8ec20386	143
6df458b7	144	g_strfreev(names);
43e5747a UH	145	}
43e5747a UH	146	}
66149c20	147
497f5362	148	if (ret != SR_OK) {
029d73fe UH	149	g_slist_free(channellist);
029d73fe UH	150	channellist = NULL;
43e5747a UH	151	}
	152
	153	g_strfreev(tokens);
43e5747a	154
029d73fe	155	return channellist;
43e5747a UH	156	}
43e5747a UH	157
6b27bde4 BV	158	int parse_trigger_match(char c)
	159	{
	160	int match;
	161
	162	if (c == '0')
	163	match = SR_TRIGGER_ZERO;
	164	else if (c == '1')
	165	match = SR_TRIGGER_ONE;
	166	else if (c == 'r')
	167	match = SR_TRIGGER_RISING;
	168	else if (c == 'f')
	169	match = SR_TRIGGER_FALLING;
	170	else if (c == 'e')
	171	match = SR_TRIGGER_EDGE;
	172	else if (c == 'o')
	173	match = SR_TRIGGER_OVER;
	174	else if (c == 'u')
	175	match = SR_TRIGGER_UNDER;
	176	else
	177	match = 0;
	178
	179	return match;
	180	}
	181
4bf77ec6 BV	182	int parse_triggerstring(const struct sr_dev_inst sdi, const char s,
4bf77ec6 BV	183	struct sr_trigger **trigger)
6b27bde4 BV	184	{
6b27bde4 BV	185	struct sr_channel *ch;
6b27bde4 BV	186	struct sr_trigger_stage *stage;
	187	GVariant *gvar;
	188	GSList *l;
	189	gsize num_matches;
	190	gboolean found_match, error;
	191	const int32_t *matches;
	192	int32_t match;
	193	unsigned int j;
	194	int t, i;
	195	char *tokens, sep;
	196
	197	if (sr_config_list(sdi->driver, sdi, NULL, SR_CONF_TRIGGER_MATCH,
	198	&gvar) != SR_OK) {
	199	g_critical("Device doesn't support any triggers.");
	200	return FALSE;
	201	}
	202	matches = g_variant_get_fixed_array(gvar, &num_matches, sizeof(int32_t));
	203
4bf77ec6	204	*trigger = sr_trigger_new(NULL);
6b27bde4 BV	205	error = FALSE;
	206	tokens = g_strsplit(s, ",", -1);
	207	for (i = 0; tokens[i]; i++) {
	208	if (!(sep = strchr(tokens[i], '='))) {
	209	g_critical("Invalid trigger '%s'.", tokens[i]);
	210	error = TRUE;
	211	break;
	212	}
	213	*sep++ = 0;
	214	ch = NULL;
	215	for (l = sdi->channels; l; l = l->next) {
	216	ch = l->data;
	217	if (ch->enabled && !strcmp(ch->name, tokens[i]))
	218	break;
	219	ch = NULL;
	220	}
	221	if (!ch) {
	222	g_critical("Invalid channel '%s'.", tokens[i]);
	223	error = TRUE;
	224	break;
	225	}
	226	for (t = 0; sep[t]; t++) {
	227	if (!(match = parse_trigger_match(sep[t]))) {
	228	g_critical("Invalid trigger match '%c'.", sep[t]);
	229	error = TRUE;
	230	break;
	231	}
	232	found_match = FALSE;
	233	for (j = 0; j < num_matches; j++) {
	234	if (matches[j] == match) {
	235	found_match = TRUE;
	236	break;
	237	}
	238	}
	239	if (!found_match) {
	240	g_critical("Trigger match '%c' not supported by device.", sep[t]);
	241	error = TRUE;
	242	break;
	243	}
	244	/* Make sure this ends up in the right stage, creating
	245	* them as needed. */
4bf77ec6 BV	246	while (!(stage = g_slist_nth_data((*trigger)->stages, t)))
4bf77ec6 BV	247	sr_trigger_stage_add(*trigger);
6b27bde4 BV	248	if (sr_trigger_match_add(stage, ch, match, 0) != SR_OK) {
	249	error = TRUE;
	250	break;
	251	}
	252	}
	253	}
	254	g_strfreev(tokens);
	255	g_variant_unref(gvar);
	256
	257	if (error)
4bf77ec6	258	sr_trigger_free(*trigger);
6b27bde4 BV	259
	260	return !error;
	261	}
	262
63bb454c	263	GHashTable parse_generic_arg(const char arg, gboolean sep_first)
43e5747a UH	264	{
	265	GHashTable *hash;
	266	int i;
	267	char *elements, e;
	268
	269	if (!arg \|\| !arg[0])
	270	return NULL;
	271
63bb454c BV	272	i = 0;
	273	hash = g_hash_table_new_full(g_str_hash, g_str_equal,
	274	g_free, g_free);
43e5747a	275	elements = g_strsplit(arg, ":", 0);
63bb454c BV	276	if (sep_first)
	277	g_hash_table_insert(hash, g_strdup("sigrok_key"),
	278	g_strdup(elements[i++]));
	279	for (; elements[i]; i++) {
43e5747a UH	280	e = strchr(elements[i], '=');
	281	if (!e)
	282	g_hash_table_insert(hash, g_strdup(elements[i]), NULL);
	283	else {
	284	*e++ = '\0';
	285	g_hash_table_insert(hash, g_strdup(elements[i]), g_strdup(e));
	286	}
	287	}
	288	g_strfreev(elements);
	289
	290	return hash;
	291	}
	292
87e24fed BV	293	GHashTable generic_arg_to_opt(const struct sr_option opts, GHashTable genargs)
	294	{
	295	GHashTable *hash;
	296	GVariant *gvar;
	297	int i;
	298	char *s;
41ef1ae4	299	gboolean b;
87e24fed BV	300
	301	hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
	302	(GDestroyNotify)g_variant_unref);
	303	for (i = 0; opts[i]; i++) {
	304	if (!(s = g_hash_table_lookup(genargs, opts[i]->id)))
	305	continue;
	306	if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT32)) {
	307	gvar = g_variant_new_uint32(strtoul(s, NULL, 10));
	308	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	309	g_variant_ref_sink(gvar));
	310	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_INT32)) {
	311	gvar = g_variant_new_int32(strtoul(s, NULL, 10));
	312	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	313	g_variant_ref_sink(gvar));
902e368e BV	314	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT64)) {
	315	gvar = g_variant_new_uint64(strtoul(s, NULL, 10));
	316	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	317	g_variant_ref_sink(gvar));
87e24fed BV	318	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_DOUBLE)) {
	319	gvar = g_variant_new_double(strtod(s, NULL));
	320	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	321	g_variant_ref_sink(gvar));
	322	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_STRING)) {
	323	gvar = g_variant_new_string(s);
	324	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	325	g_variant_ref_sink(gvar));
41ef1ae4 JS	326	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_BOOLEAN)) {
	327	b = TRUE;
	328	if (0 == strcmp(s, "false") \|\| 0 == strcmp(s, "no")) {
	329	b = FALSE;
	330	} else if (!(0 == strcmp(s, "true") \|\| 0 == strcmp(s, "yes"))) {
	331	g_critical("Unable to convert '%s' to boolean!", s);
	332	}
	333
	334	gvar = g_variant_new_boolean(b);
	335	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	336	g_variant_ref_sink(gvar));
87e24fed BV	337	} else {
	338	g_critical("Don't know GVariant type for option '%s'!", opts[i]->id);
	339	}
	340	}
	341
	342	return hash;
	343	}
	344
2be182e6	345	static char strcanon(const char str)
432de709 BV	346	{
	347	int p0, p1;
	348	char *s;
	349
	350	/* Returns newly allocated string. */
	351	s = g_ascii_strdown(str, -1);
	352	for (p0 = p1 = 0; str[p0]; p0++) {
	353	if ((s[p0] >= 'a' && s[p0] <= 'z')
	354	\|\| (s[p0] >= '0' && s[p0] <= '9'))
	355	s[p1++] = s[p0];
	356	}
	357	s[p1] = '\0';
	358
	359	return s;
	360	}
	361
d2ee5eea	362	int canon_cmp(const char str1, const char str2)
432de709 BV	363	{
	364	int ret;
	365	char s1, s2;
	366
	367	s1 = strcanon(str1);
	368	s2 = strcanon(str2);
	369	ret = g_ascii_strcasecmp(s1, s2);
	370	g_free(s2);
	371	g_free(s1);
	372
	373	return ret;
	374	}
d75c8529 BV	375
	376	/* Convert driver options hash to GSList of struct sr_config. */
	377	static GSList hash_to_hwopt(GHashTable hash)
	378	{
	379	struct sr_config *src;
	380	GList gl, keys;
	381	GSList *opts;
	382	char *key;
	383
	384	keys = g_hash_table_get_keys(hash);
	385	opts = NULL;
	386	for (gl = keys; gl; gl = gl->next) {
	387	key = gl->data;
	388	src = g_malloc(sizeof(struct sr_config));
	389	if (opt_to_gvar(key, g_hash_table_lookup(hash, key), src) != 0)
	390	return NULL;
	391	opts = g_slist_append(opts, src);
	392	}
	393	g_list_free(keys);
	394
	395	return opts;
	396	}
	397
	398	int parse_driver(char arg, struct sr_dev_driver driver, GSList *drvopts)
	399	{
	400	struct sr_dev_driver **drivers;
	401	GHashTable *drvargs;
	402	int i;
	403	char *drvname;
	404
	405	drvargs = parse_generic_arg(arg, TRUE);
	406
	407	drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
	408	g_hash_table_remove(drvargs, "sigrok_key");
	409	*driver = NULL;
	410	drivers = sr_driver_list();
	411	for (i = 0; drivers[i]; i++) {
	412	if (strcmp(drivers[i]->name, drvname))
	413	continue;
	414	*driver = drivers[i];
	415	}
	416	if (!*driver) {
	417	g_critical("Driver %s not found.", drvname);
	418	g_hash_table_destroy(drvargs);
	419	g_free(drvname);
	420	return FALSE;
	421	}
	422	g_free(drvname);
	423	if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
	424	g_critical("Failed to initialize driver.");
	425	g_hash_table_destroy(drvargs);
	426	return FALSE;
	427	}
	428
	429	if (drvopts) {
	430	*drvopts = NULL;
	431	if (g_hash_table_size(drvargs) > 0) {
	432	if (!(*drvopts = hash_to_hwopt(drvargs))) {
	433	/* Unknown options, already logged. */
	434	g_hash_table_destroy(drvargs);
	435	return FALSE;
	436	}
	437	}
	438	}
439
440	g_hash_table_destroy(drvargs);
441
442	return TRUE;
443	}
444