[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, *channels;
	int ret, n, b, e, i;
	char **tokens, **range, **names, *eptr, str[8];

	channels = sr_dev_inst_channels_get(sdi);

	if (!channelstring || !channelstring[0])
		/* Use all channels by default. */
		return g_slist_copy(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(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(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, *channels;
	gsize num_matches;
	gboolean found_match, error;
	const int32_t *matches;
	int32_t match;
	unsigned int j;
	int t, i;
	char **tokens, *sep;
	struct sr_dev_driver *driver;

	driver = sr_dev_inst_driver_get(sdi);
	channels = sr_dev_inst_channels_get(sdi);

	if (maybe_config_list(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 = 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
	1	/*
	2	* This file is part of the sigrok-cli project.
	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
	20	#include "sigrok-cli.h"
	21	#include <stdio.h>
	22	#include <stdlib.h>
	23	#include <stdint.h>
	24	#include <string.h>
	25	#include <glib.h>
	26
	27	extern struct sr_context *sr_ctx;
	28
	29	struct sr_channel find_channel(GSList channellist, const char *channelname)
	30	{
	31	struct sr_channel *ch;
	32	GSList *l;
	33
	34	ch = NULL;
	35	for (l = channellist; l; l = l->next) {
	36	ch = l->data;
	37	if (!strcmp(ch->name, channelname))
	38	break;
	39	}
	40	ch = l ? l->data : NULL;
	41
	42	return ch;
	43	}
	44
	45	GSList parse_channelstring(struct sr_dev_inst sdi, const char *channelstring)
	46	{
	47	struct sr_channel *ch;
	48	GSList channellist, channels;
	49	int ret, n, b, e, i;
	50	char tokens, range, *names, eptr, str[8];
	51
	52	channels = sr_dev_inst_channels_get(sdi);
	53
	54	if (!channelstring \|\| !channelstring[0])
	55	/* Use all channels by default. */
	56	return g_slist_copy(channels);
	57
	58	ret = SR_OK;
	59	range = NULL;
	60	names = NULL;
	61	channellist = NULL;
	62	tokens = g_strsplit(channelstring, ",", 0);
	63	for (i = 0; tokens[i]; i++) {
	64	if (tokens[i][0] == '\0') {
	65	g_critical("Invalid empty channel.");
	66	ret = SR_ERR;
	67	break;
	68	}
	69	if (strchr(tokens[i], '-')) {
	70	/*
	71	* A range of channels in the form a-b. This will only work
	72	* if the channels are named as numbers -- so every channel
	73	* in the range must exist as a channel name string in the
	74	* device.
	75	*/
	76	range = g_strsplit(tokens[i], "-", 2);
	77	if (!range[0] \|\| !range[1] \|\| range[2]) {
	78	/* Need exactly two arguments. */
	79	g_critical("Invalid channel syntax '%s'.", tokens[i]);
	80	ret = SR_ERR;
	81	goto range_fail;
	82	}
	83
	84	b = strtol(range[0], &eptr, 10);
	85	if (eptr == range[0] \|\| *eptr != '\0') {
	86	g_critical("Invalid channel '%s'.", range[0]);
	87	ret = SR_ERR;
	88	goto range_fail;
	89	}
	90	e = strtol(range[1], NULL, 10);
	91	if (eptr == range[1] \|\| *eptr != '\0') {
	92	g_critical("Invalid channel '%s'.", range[1]);
	93	ret = SR_ERR;
	94	goto range_fail;
	95	}
	96	if (b < 0 \|\| b >= e) {
	97	g_critical("Invalid channel range '%s'.", tokens[i]);
	98	ret = SR_ERR;
	99	goto range_fail;
	100	}
	101
	102	while (b <= e) {
	103	n = snprintf(str, 8, "%d", b);
	104	if (n < 0 \|\| n > 8) {
	105	g_critical("Invalid channel '%d'.", b);
	106	ret = SR_ERR;
	107	break;
	108	}
	109	ch = find_channel(channels, str);
	110	if (!ch) {
	111	g_critical("unknown channel '%d'.", b);
	112	ret = SR_ERR;
	113	break;
	114	}
	115	channellist = g_slist_append(channellist, ch);
	116	b++;
	117	}
	118	range_fail:
	119	if (range)
	120	g_strfreev(range);
	121
	122	if (ret != SR_OK)
	123	break;
	124	} else {
	125	names = g_strsplit(tokens[i], "=", 2);
	126	if (!names[0] \|\| (names[1] && names[2])) {
	127	/* Need one or two arguments. */
	128	g_critical("Invalid channel '%s'.", tokens[i]);
	129	g_strfreev(names);
	130	ret = SR_ERR;
	131	break;
	132	}
	133
	134	ch = find_channel(channels, names[0]);
	135	if (!ch) {
	136	g_critical("unknown channel '%s'.", names[0]);
	137	g_strfreev(names);
	138	ret = SR_ERR;
	139	break;
	140	}
	141	if (names[1]) {
	142	/* Rename channel. */
	143	g_free(ch->name);
	144	ch->name = g_strdup(names[1]);
	145	}
	146	channellist = g_slist_append(channellist, ch);
	147
	148	g_strfreev(names);
	149	}
	150	}
	151
	152	if (ret != SR_OK) {
	153	g_slist_free(channellist);
	154	channellist = NULL;
	155	}
	156
	157	g_strfreev(tokens);
	158
	159	return channellist;
	160	}
	161
	162	int parse_trigger_match(char c)
	163	{
	164	int match;
	165
	166	if (c == '0')
	167	match = SR_TRIGGER_ZERO;
	168	else if (c == '1')
	169	match = SR_TRIGGER_ONE;
	170	else if (c == 'r')
	171	match = SR_TRIGGER_RISING;
	172	else if (c == 'f')
	173	match = SR_TRIGGER_FALLING;
	174	else if (c == 'e')
	175	match = SR_TRIGGER_EDGE;
	176	else if (c == 'o')
	177	match = SR_TRIGGER_OVER;
	178	else if (c == 'u')
	179	match = SR_TRIGGER_UNDER;
	180	else
	181	match = 0;
	182
	183	return match;
	184	}
	185
	186	int parse_triggerstring(const struct sr_dev_inst sdi, const char s,
	187	struct sr_trigger **trigger)
	188	{
	189	struct sr_channel *ch;
	190	struct sr_trigger_stage *stage;
	191	GVariant *gvar;
	192	GSList l, channels;
	193	gsize num_matches;
	194	gboolean found_match, error;
	195	const int32_t *matches;
	196	int32_t match;
	197	unsigned int j;
	198	int t, i;
	199	char *tokens, sep;
	200	struct sr_dev_driver *driver;
	201
	202	driver = sr_dev_inst_driver_get(sdi);
	203	channels = sr_dev_inst_channels_get(sdi);
	204
	205	if (maybe_config_list(driver, sdi, NULL, SR_CONF_TRIGGER_MATCH,
	206	&gvar) != SR_OK) {
	207	g_critical("Device doesn't support any triggers.");
	208	return FALSE;
	209	}
	210	matches = g_variant_get_fixed_array(gvar, &num_matches, sizeof(int32_t));
	211
	212	*trigger = sr_trigger_new(NULL);
	213	error = FALSE;
	214	tokens = g_strsplit(s, ",", -1);
	215	for (i = 0; tokens[i]; i++) {
	216	if (!(sep = strchr(tokens[i], '='))) {
	217	g_critical("Invalid trigger '%s'.", tokens[i]);
	218	error = TRUE;
	219	break;
	220	}
	221	*sep++ = 0;
	222	ch = NULL;
	223	for (l = channels; l; l = l->next) {
	224	ch = l->data;
	225	if (ch->enabled && !strcmp(ch->name, tokens[i]))
	226	break;
	227	ch = NULL;
	228	}
	229	if (!ch) {
	230	g_critical("Invalid channel '%s'.", tokens[i]);
	231	error = TRUE;
	232	break;
	233	}
	234	for (t = 0; sep[t]; t++) {
	235	if (!(match = parse_trigger_match(sep[t]))) {
	236	g_critical("Invalid trigger match '%c'.", sep[t]);
	237	error = TRUE;
	238	break;
	239	}
	240	found_match = FALSE;
	241	for (j = 0; j < num_matches; j++) {
	242	if (matches[j] == match) {
	243	found_match = TRUE;
	244	break;
	245	}
	246	}
	247	if (!found_match) {
	248	g_critical("Trigger match '%c' not supported by device.", sep[t]);
	249	error = TRUE;
	250	break;
	251	}
	252	/* Make sure this ends up in the right stage, creating
	253	* them as needed. */
	254	while (!(stage = g_slist_nth_data((*trigger)->stages, t)))
	255	sr_trigger_stage_add(*trigger);
	256	if (sr_trigger_match_add(stage, ch, match, 0) != SR_OK) {
	257	error = TRUE;
	258	break;
	259	}
	260	}
	261	}
	262	g_strfreev(tokens);
	263	g_variant_unref(gvar);
	264
	265	if (error)
	266	sr_trigger_free(*trigger);
	267
	268	return !error;
	269	}
	270
	271	GHashTable parse_generic_arg(const char arg, gboolean sep_first)
	272	{
	273	GHashTable *hash;
	274	int i;
	275	char *elements, e;
	276
	277	if (!arg \|\| !arg[0])
	278	return NULL;
	279
	280	i = 0;
	281	hash = g_hash_table_new_full(g_str_hash, g_str_equal,
	282	g_free, g_free);
	283	elements = g_strsplit(arg, ":", 0);
	284	if (sep_first)
	285	g_hash_table_insert(hash, g_strdup("sigrok_key"),
	286	g_strdup(elements[i++]));
	287	for (; elements[i]; i++) {
	288	e = strchr(elements[i], '=');
	289	if (!e)
	290	g_hash_table_insert(hash, g_strdup(elements[i]), NULL);
	291	else {
	292	*e++ = '\0';
	293	g_hash_table_insert(hash, g_strdup(elements[i]), g_strdup(e));
	294	}
	295	}
	296	g_strfreev(elements);
	297
	298	return hash;
	299	}
	300
	301	GHashTable generic_arg_to_opt(const struct sr_option opts, GHashTable genargs)
	302	{
	303	GHashTable *hash;
	304	GVariant *gvar;
	305	int i;
	306	char *s;
	307	gboolean b;
	308
	309	hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
	310	(GDestroyNotify)g_variant_unref);
	311	for (i = 0; opts[i]; i++) {
	312	if (!(s = g_hash_table_lookup(genargs, opts[i]->id)))
	313	continue;
	314	if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_UINT32)) {
	315	gvar = g_variant_new_uint32(strtoul(s, NULL, 10));
	316	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	317	g_variant_ref_sink(gvar));
	318	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_INT32)) {
	319	gvar = g_variant_new_int32(strtoul(s, NULL, 10));
	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_UINT64)) {
	323	gvar = g_variant_new_uint64(strtoul(s, NULL, 10));
	324	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	325	g_variant_ref_sink(gvar));
	326	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_DOUBLE)) {
	327	gvar = g_variant_new_double(strtod(s, NULL));
	328	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	329	g_variant_ref_sink(gvar));
	330	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_STRING)) {
	331	gvar = g_variant_new_string(s);
	332	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	333	g_variant_ref_sink(gvar));
	334	} else if (g_variant_is_of_type(opts[i]->def, G_VARIANT_TYPE_BOOLEAN)) {
	335	b = TRUE;
	336	if (0 == strcmp(s, "false") \|\| 0 == strcmp(s, "no")) {
	337	b = FALSE;
	338	} else if (!(0 == strcmp(s, "true") \|\| 0 == strcmp(s, "yes"))) {
	339	g_critical("Unable to convert '%s' to boolean!", s);
	340	}
	341
	342	gvar = g_variant_new_boolean(b);
	343	g_hash_table_insert(hash, g_strdup(opts[i]->id),
	344	g_variant_ref_sink(gvar));
	345	} else {
	346	g_critical("Don't know GVariant type for option '%s'!", opts[i]->id);
	347	}
	348	}
	349
	350	return hash;
	351	}
	352
	353	static char strcanon(const char str)
	354	{
	355	int p0, p1;
	356	char *s;
	357
	358	/* Returns newly allocated string. */
	359	s = g_ascii_strdown(str, -1);
	360	for (p0 = p1 = 0; str[p0]; p0++) {
	361	if ((s[p0] >= 'a' && s[p0] <= 'z')
	362	\|\| (s[p0] >= '0' && s[p0] <= '9'))
	363	s[p1++] = s[p0];
	364	}
	365	s[p1] = '\0';
	366
	367	return s;
	368	}
	369
	370	int canon_cmp(const char str1, const char str2)
	371	{
	372	int ret;
	373	char s1, s2;
	374
	375	s1 = strcanon(str1);
	376	s2 = strcanon(str2);
	377	ret = g_ascii_strcasecmp(s1, s2);
	378	g_free(s2);
	379	g_free(s1);
	380
	381	return ret;
	382	}
	383
	384	/* Convert driver options hash to GSList of struct sr_config. */
	385	static GSList hash_to_hwopt(GHashTable hash)
	386	{
	387	struct sr_config *src;
	388	GList gl, keys;
	389	GSList *opts;
	390	char *key;
	391
	392	keys = g_hash_table_get_keys(hash);
	393	opts = NULL;
	394	for (gl = keys; gl; gl = gl->next) {
	395	key = gl->data;
	396	src = g_malloc(sizeof(struct sr_config));
	397	if (opt_to_gvar(key, g_hash_table_lookup(hash, key), src) != 0)
	398	return NULL;
	399	opts = g_slist_append(opts, src);
	400	}
	401	g_list_free(keys);
	402
	403	return opts;
	404	}
	405
	406	int parse_driver(char arg, struct sr_dev_driver driver, GSList *drvopts)
	407	{
	408	struct sr_dev_driver **drivers;
	409	GHashTable *drvargs;
	410	int i;
	411	char *drvname;
	412
	413	drvargs = parse_generic_arg(arg, TRUE);
	414
	415	drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
	416	g_hash_table_remove(drvargs, "sigrok_key");
	417	*driver = NULL;
	418	drivers = sr_driver_list();
	419	for (i = 0; drivers[i]; i++) {
	420	if (strcmp(drivers[i]->name, drvname))
	421	continue;
	422	*driver = drivers[i];
	423	}
	424	if (!*driver) {
	425	g_critical("Driver %s not found.", drvname);
	426	g_hash_table_destroy(drvargs);
	427	g_free(drvname);
	428	return FALSE;
	429	}
	430	g_free(drvname);
	431	if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
	432	g_critical("Failed to initialize driver.");
	433	g_hash_table_destroy(drvargs);
	434	return FALSE;
	435	}
	436
	437	if (drvopts) {
	438	*drvopts = NULL;
	439	if (g_hash_table_size(drvargs) > 0) {
	440	if (!(*drvopts = hash_to_hwopt(drvargs))) {
	441	/* Unknown options, already logged. */
	442	g_hash_table_destroy(drvargs);
	443	return FALSE;
	444	}
	445	}
	446	}
	447
	448	g_hash_table_destroy(drvargs);
	449
	450	return TRUE;
	451	}