[libsigrok.git] / output / output_analog.c

/*
 * This file is part of the sigrok project.
 *
 * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
 * Copyright (C) 2011 Håvard Espeland <gus@ping.uio.no>
 *
 * 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include <sigrok.h>
#include "config.h"

#define DEFAULT_BPL_BITS 64
#define DEFAULT_BPL_HEX  192
#define DEFAULT_BPL_ASCII 74

enum outputmode {
	MODE_BITS = 1,
	MODE_HEX,
	MODE_ASCII,
};

struct context {
	unsigned int num_enabled_probes;
	int samples_per_line;
	unsigned int unitsize;
	int line_offset;
	int linebuf_len;
	char *probelist[65];
	char *linebuf;
	int spl_cnt;
	uint8_t *linevalues;
	char *header;
	int mark_trigger;
	uint64_t prevsample;
	enum outputmode mode;
};

static void flush_linebufs(struct context *ctx, char *outbuf)
{
	static int max_probename_len = 0;
	int len, i;

	if (ctx->linebuf[0] == 0)
		return;

	if (max_probename_len == 0) {
		/* First time through... */
		for (i = 0; ctx->probelist[i]; i++) {
			len = strlen(ctx->probelist[i]);
			if (len > max_probename_len)
				max_probename_len = len;
		}
	}

	for (i = 0; ctx->probelist[i]; i++) {
		sprintf(outbuf + strlen(outbuf), "%*s:%s\n", max_probename_len,
			ctx->probelist[i], ctx->linebuf + i * ctx->linebuf_len);
	}

	/* Mark trigger with a ^ character. */
	if (ctx->mark_trigger != -1)
	{
		int space_offset = ctx->mark_trigger / 8;

		if (ctx->mode == MODE_ASCII)
			space_offset = 0;

		sprintf(outbuf + strlen(outbuf), "T:%*s^\n",
			ctx->mark_trigger + space_offset, "");
	}

	memset(ctx->linebuf, 0, i * ctx->linebuf_len);
}

static int init(struct output *o, int default_spl, enum outputmode mode)
{
	struct context *ctx;
	struct probe *probe;
	GSList *l;
	uint64_t samplerate;
	int num_probes;
	char *samplerate_s;

	if (!(ctx = calloc(1, sizeof(struct context))))
		return SIGROK_ERR_MALLOC;

	o->internal = ctx;
	ctx->num_enabled_probes = 0;

	for (l = o->device->probes; l; l = l->next) {
		probe = l->data;
		if (!probe->enabled)
			continue;
		ctx->probelist[ctx->num_enabled_probes++] = probe->name;
	}

	ctx->probelist[ctx->num_enabled_probes] = 0;
	ctx->unitsize = (ctx->num_enabled_probes + 7) / 8;
	ctx->line_offset = 0;
	ctx->spl_cnt = 0;
	ctx->mark_trigger = -1;
	ctx->mode = mode;

	if (o->param && o->param[0]) {
		ctx->samples_per_line = strtoul(o->param, NULL, 10);
		if (ctx->samples_per_line < 1)
			return SIGROK_ERR;
	} else
		ctx->samples_per_line = default_spl;

	if (!(ctx->header = malloc(512))) {
		free(ctx);
		return SIGROK_ERR_MALLOC;
	}

	snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
	num_probes = g_slist_length(o->device->probes);
	if (o->device->plugin) {
		samplerate = *((uint64_t *) o->device->plugin->get_device_info(
				o->device->plugin_index, DI_CUR_SAMPLERATE));
		if (!(samplerate_s = sigrok_samplerate_string(samplerate))) {
			free(ctx->header);
			free(ctx);
			return SIGROK_ERR;
		}
		snprintf(ctx->header + strlen(ctx->header),
			 511 - strlen(ctx->header),
			 "Acquisition with %d/%d probes at %s\n",
			 ctx->num_enabled_probes, num_probes, samplerate_s);
		free(samplerate_s);
	}

	ctx->linebuf_len = ctx->samples_per_line * 2 + 4;
	if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) {
		free(ctx->header);
		free(ctx);
		return SIGROK_ERR_MALLOC;
	}
	if (!(ctx->linevalues = calloc(1, num_probes))) {
		free(ctx->header);
		free(ctx);
		return SIGROK_ERR_MALLOC;
	}

	return SIGROK_OK;
}

static int event(struct output *o, int event_type, char **data_out,
		 uint64_t *length_out)
{
	struct context *ctx;
	int outsize;
	char *outbuf;

	ctx = o->internal;
	switch (event_type) {
	case DF_TRIGGER:
		ctx->mark_trigger = ctx->spl_cnt;
		*data_out = NULL;
		*length_out = 0;
		break;
	case DF_END:
		outsize = ctx->num_enabled_probes
				* (ctx->samples_per_line + 20) + 512;
		if (!(outbuf = calloc(1, outsize)))
			return SIGROK_ERR_MALLOC;
		flush_linebufs(ctx, outbuf);
		*data_out = outbuf;
		*length_out = strlen(outbuf);
		free(o->internal);
		o->internal = NULL;
		break;
	default:
		*data_out = NULL;
		*length_out = 0;
		break;
	}

	return SIGROK_OK;
}

static int init_bits(struct output *o)
{
	return init(o, DEFAULT_BPL_BITS, MODE_BITS);
}

static int data_bits(struct output *o, char *data_in, uint64_t length_in,
		     char **data_out, uint64_t *length_out)
{
	struct context *ctx;
	unsigned int outsize, offset, p;
	int max_linelen;
	uint64_t sample;
	char *outbuf, c;

	ctx = o->internal;
	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
			+ ctx->samples_per_line / 8;
        /*
         * Calculate space needed for probes. Set aside 512 bytes for
         * extra output, e.g. trigger.
         */
	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
            * (ctx->num_enabled_probes * max_linelen);

	if (!(outbuf = calloc(1, outsize + 1)))
		return SIGROK_ERR_MALLOC;

	outbuf[0] = '\0';
	if (ctx->header) {
		/* The header is still here, this must be the first packet. */
		strncpy(outbuf, ctx->header, outsize);
		free(ctx->header);
		ctx->header = NULL;

		/* Ensure first transition. */
		memcpy(&ctx->prevsample, data_in, ctx->unitsize);
		ctx->prevsample = ~ctx->prevsample;
	}

	if (length_in >= ctx->unitsize) {
		for (offset = 0; offset <= length_in - ctx->unitsize;
		     offset += ctx->unitsize) {
			memcpy(&sample, data_in + offset, ctx->unitsize);
			for (p = 0; p < ctx->num_enabled_probes; p++) {
				c = (sample & ((uint64_t) 1 << p)) ? '1' : '0';
				ctx->linebuf[p * ctx->linebuf_len +
					     ctx->line_offset] = c;
			}
			ctx->line_offset++;
			ctx->spl_cnt++;

			/* Add a space every 8th bit. */
			if ((ctx->spl_cnt & 7) == 0) {
				for (p = 0; p < ctx->num_enabled_probes; p++)
					ctx->linebuf[p * ctx->linebuf_len +
						     ctx->line_offset] = ' ';
				ctx->line_offset++;
			}

			/* End of line. */
			if (ctx->spl_cnt >= ctx->samples_per_line) {
				flush_linebufs(ctx, outbuf);
				ctx->line_offset = ctx->spl_cnt = 0;
				ctx->mark_trigger = -1;
			}
		}
	} else {
		g_message("short buffer (length_in=%" PRIu64 ")", length_in);
	}

	*data_out = outbuf;
	*length_out = strlen(outbuf);

	return SIGROK_OK;
}

static int init_hex(struct output *o)
{
	return init(o, DEFAULT_BPL_HEX, MODE_HEX);
}

static int data_hex(struct output *o, char *data_in, uint64_t length_in,
		    char **data_out, uint64_t *length_out)
{
	struct context *ctx;
	unsigned int outsize, offset, p;
	int max_linelen;
	uint64_t sample;
	char *outbuf;

	ctx = o->internal;
	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
			+ ctx->samples_per_line / 2;
	outsize = length_in / ctx->unitsize * ctx->num_enabled_probes
			/ ctx->samples_per_line * max_linelen + 512;

	if (!(outbuf = calloc(1, outsize + 1)))
		return SIGROK_ERR_MALLOC;

	outbuf[0] = '\0';
	if (ctx->header) {
		/* The header is still here, this must be the first packet. */
		strncpy(outbuf, ctx->header, outsize);
		free(ctx->header);
		ctx->header = NULL;
	}

	ctx->line_offset = 0;
	for (offset = 0; offset <= length_in - ctx->unitsize;
	     offset += ctx->unitsize) {
		memcpy(&sample, data_in + offset, ctx->unitsize);
		for (p = 0; p < ctx->num_enabled_probes; p++) {
			ctx->linevalues[p] <<= 1;
			if (sample & ((uint64_t) 1 << p))
				ctx->linevalues[p] |= 1;
			sprintf(ctx->linebuf + (p * ctx->linebuf_len) +
				ctx->line_offset, "%.2x", ctx->linevalues[p]);
		}
		ctx->spl_cnt++;

		/* Add a space after every complete hex byte. */
		if ((ctx->spl_cnt & 7) == 0) {
			for (p = 0; p < ctx->num_enabled_probes; p++)
				ctx->linebuf[p * ctx->linebuf_len +
					     ctx->line_offset + 2] = ' ';
			ctx->line_offset += 3;
		}

		/* End of line. */
		if (ctx->spl_cnt >= ctx->samples_per_line) {
			flush_linebufs(ctx, outbuf);
			ctx->line_offset = ctx->spl_cnt = 0;
		}
	}

	*data_out = outbuf;
	*length_out = strlen(outbuf);

	return SIGROK_OK;
}

static int init_ascii(struct output *o)
{
	return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
}

static int data_ascii(struct output *o, char *data_in, uint64_t length_in,
		     char **data_out, uint64_t *length_out)
{
	struct context *ctx;
	unsigned int outsize, offset, p;
	int max_linelen;
	uint64_t sample;
	char *outbuf;

	ctx = o->internal;
	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
			+ ctx->samples_per_line / 8;
        /*
         * Calculate space needed for probes. Set aside 512 bytes for
         * extra output, e.g. trigger.
         */
	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
            * (ctx->num_enabled_probes * max_linelen);

	if (!(outbuf = calloc(1, outsize + 1)))
		return SIGROK_ERR_MALLOC;

	outbuf[0] = '\0';
	if (ctx->header) {
		/* The header is still here, this must be the first packet. */
		strncpy(outbuf, ctx->header, outsize);
		free(ctx->header);
		ctx->header = NULL;
	}

	if (length_in >= ctx->unitsize) {
		for (offset = 0; offset <= length_in - ctx->unitsize;
		     offset += ctx->unitsize) {
			memcpy(&sample, data_in + offset, ctx->unitsize);

			char tmpval[ctx->num_enabled_probes];

			for (p = 0; p < ctx->num_enabled_probes; p++) {
				uint64_t curbit = (sample & ((uint64_t) 1 << p));
				uint64_t prevbit = (ctx->prevsample &
						((uint64_t) 1 << p));

				if (curbit < prevbit && ctx->line_offset > 0) {
					ctx->linebuf[p * ctx->linebuf_len +
						ctx->line_offset-1] = '\\';
				}

				if (curbit > prevbit) {
					tmpval[p] = '/';
				} else {
					if (curbit)
						tmpval[p] = '"';
					else
						tmpval[p] = '.';
				}
			}

			/* End of line. */
			if (ctx->spl_cnt >= ctx->samples_per_line) {
				flush_linebufs(ctx, outbuf);
				ctx->line_offset = ctx->spl_cnt = 0;
				ctx->mark_trigger = -1;
			}

			for (p = 0; p < ctx->num_enabled_probes; p++) {
				ctx->linebuf[p * ctx->linebuf_len +
					     ctx->line_offset] = tmpval[p];
			}

			ctx->line_offset++;
			ctx->spl_cnt++;

			ctx->prevsample = sample;
		}
	} else {
		g_message("short buffer (length_in=%" PRIu64 ")", length_in);
	}

	*data_out = outbuf;
	*length_out = strlen(outbuf);

	return SIGROK_OK;
}


struct output_format output_text_bits = {
	"bits",
	"Bits (takes argument, default 64)",
	DF_LOGIC,
	init_bits,
	data_bits,
	event,
};

struct output_format output_text_hex = {
	"hex",
	"Hexadecimal (takes argument, default 192)",
	DF_LOGIC,
	init_hex,
	data_hex,
	event,
};

struct output_format output_text_ascii = {
	"ascii",
	"ASCII (takes argument, default 74)",
	DF_LOGIC,
	init_ascii,
	data_ascii,
	event,
};
Commit	Line	Data
1437e893 BV	1	/*
	2	* This file is part of the sigrok project.
	3	*
f3163a6c DR	4	* Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
f3163a6c DR	5	* Copyright (C) 2011 Håvard Espeland <gus@ping.uio.no>
1437e893 BV	6	*
	7	* This program is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
1437e893	21	#include <stdlib.h>
f3163a6c	22	#include <stdio.h>
1437e893	23	#include <string.h>
f3163a6c	24	#include <glib.h>
1437e893	25	#include <sigrok.h>
f3163a6c	26	#include "config.h"
1437e893	27
f3163a6c DR	28	#define DEFAULT_BPL_BITS 64
	29	#define DEFAULT_BPL_HEX 192
	30	#define DEFAULT_BPL_ASCII 74
1437e893	31
f3163a6c DR	32	enum outputmode {
	33	MODE_BITS = 1,
	34	MODE_HEX,
	35	MODE_ASCII,
	36	};
1437e893 BV	37
1437e893 BV	38	struct context {
1437e893	39	unsigned int num_enabled_probes;
1437e893 BV	40	int samples_per_line;
	41	unsigned int unitsize;
	42	int line_offset;
	43	int linebuf_len;
f3163a6c	44	char *probelist[65];
1437e893 BV	45	char *linebuf;
1437e893 BV	46	int spl_cnt;
f3163a6c DR	47	uint8_t *linevalues;
f3163a6c DR	48	char *header;
1437e893	49	int mark_trigger;
f3163a6c DR	50	uint64_t prevsample;
f3163a6c DR	51	enum outputmode mode;
1437e893 BV	52	};
1437e893 BV	53
1437e893 BV	54	static void flush_linebufs(struct context ctx, char outbuf)
	55	{
	56	static int max_probename_len = 0;
	57	int len, i;
	58
	59	if (ctx->linebuf[0] == 0)
	60	return;
	61
	62	if (max_probename_len == 0) {
	63	/* First time through... */
	64	for (i = 0; ctx->probelist[i]; i++) {
	65	len = strlen(ctx->probelist[i]);
	66	if (len > max_probename_len)
	67	max_probename_len = len;
	68	}
	69	}
	70
	71	for (i = 0; ctx->probelist[i]; i++) {
	72	sprintf(outbuf + strlen(outbuf), "%*s:%s\n", max_probename_len,
	73	ctx->probelist[i], ctx->linebuf + i * ctx->linebuf_len);
	74	}
	75
	76	/* Mark trigger with a ^ character. */
	77	if (ctx->mark_trigger != -1)
f3163a6c DR	78	{
	79	int space_offset = ctx->mark_trigger / 8;
	80
	81	if (ctx->mode == MODE_ASCII)
	82	space_offset = 0;
	83
1437e893	84	sprintf(outbuf + strlen(outbuf), "T:%*s^\n",
f3163a6c DR	85	ctx->mark_trigger + space_offset, "");
f3163a6c DR	86	}
1437e893 BV	87
	88	memset(ctx->linebuf, 0, i * ctx->linebuf_len);
	89	}
	90
f3163a6c	91	static int init(struct output *o, int default_spl, enum outputmode mode)
1437e893 BV	92	{
	93	struct context *ctx;
	94	struct probe *probe;
	95	GSList *l;
	96	uint64_t samplerate;
	97	int num_probes;
	98	char *samplerate_s;
	99
	100	if (!(ctx = calloc(1, sizeof(struct context))))
	101	return SIGROK_ERR_MALLOC;
	102
1437e893	103	o->internal = ctx;
1437e893	104	ctx->num_enabled_probes = 0;
f3163a6c DR	105
	106	for (l = o->device->probes; l; l = l->next) {
	107	probe = l->data;
	108	if (!probe->enabled)
	109	continue;
	110	ctx->probelist[ctx->num_enabled_probes++] = probe->name;
	111	}
	112
	113	ctx->probelist[ctx->num_enabled_probes] = 0;
	114	ctx->unitsize = (ctx->num_enabled_probes + 7) / 8;
	115	ctx->line_offset = 0;
	116	ctx->spl_cnt = 0;
1437e893	117	ctx->mark_trigger = -1;
f3163a6c DR	118	ctx->mode = mode;
f3163a6c DR	119
9b36e360 BV	120	if (o->param && o->param[0]) {
	121	ctx->samples_per_line = strtoul(o->param, NULL, 10);
	122	if (ctx->samples_per_line < 1)
	123	return SIGROK_ERR;
	124	} else
f3163a6c	125	ctx->samples_per_line = default_spl;
9b36e360	126
f3163a6c DR	127	if (!(ctx->header = malloc(512))) {
	128	free(ctx);
	129	return SIGROK_ERR_MALLOC;
1437e893	130	}
1437e893 BV	131
1437e893 BV	132	snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
f3163a6c	133	num_probes = g_slist_length(o->device->probes);
1437e893	134	if (o->device->plugin) {
1437e893 BV	135	samplerate = ((uint64_t ) o->device->plugin->get_device_info(
	136	o->device->plugin_index, DI_CUR_SAMPLERATE));
	137	if (!(samplerate_s = sigrok_samplerate_string(samplerate))) {
	138	free(ctx->header);
	139	free(ctx);
	140	return SIGROK_ERR;
	141	}
	142	snprintf(ctx->header + strlen(ctx->header),
	143	511 - strlen(ctx->header),
	144	"Acquisition with %d/%d probes at %s\n",
	145	ctx->num_enabled_probes, num_probes, samplerate_s);
	146	free(samplerate_s);
	147	}
	148
f3163a6c DR	149	ctx->linebuf_len = ctx->samples_per_line * 2 + 4;
	150	if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) {
	151	free(ctx->header);
	152	free(ctx);
	153	return SIGROK_ERR_MALLOC;
	154	}
	155	if (!(ctx->linevalues = calloc(1, num_probes))) {
1437e893 BV	156	free(ctx->header);
	157	free(ctx);
	158	return SIGROK_ERR_MALLOC;
	159	}
	160
f3163a6c	161	return SIGROK_OK;
1437e893 BV	162	}
1437e893 BV	163
f3163a6c DR	164	static int event(struct output o, int event_type, char *data_out,
f3163a6c DR	165	uint64_t *length_out)
1437e893 BV	166	{
1437e893 BV	167	struct context *ctx;
f3163a6c DR	168	int outsize;
f3163a6c DR	169	char *outbuf;
1437e893 BV	170
1437e893 BV	171	ctx = o->internal;
f3163a6c DR	172	switch (event_type) {
	173	case DF_TRIGGER:
	174	ctx->mark_trigger = ctx->spl_cnt;
	175	*data_out = NULL;
	176	*length_out = 0;
	177	break;
	178	case DF_END:
	179	outsize = ctx->num_enabled_probes
	180	* (ctx->samples_per_line + 20) + 512;
	181	if (!(outbuf = calloc(1, outsize)))
	182	return SIGROK_ERR_MALLOC;
	183	flush_linebufs(ctx, outbuf);
	184	*data_out = outbuf;
	185	*length_out = strlen(outbuf);
	186	free(o->internal);
	187	o->internal = NULL;
	188	break;
	189	default:
	190	*data_out = NULL;
	191	*length_out = 0;
	192	break;
	193	}
	194
	195	return SIGROK_OK;
	196	}
	197
	198	static int init_bits(struct output *o)
	199	{
	200	return init(o, DEFAULT_BPL_BITS, MODE_BITS);
	201	}
	202
	203	static int data_bits(struct output o, char data_in, uint64_t length_in,
	204	char *data_out, uint64_t length_out)
	205	{
	206	struct context *ctx;
	207	unsigned int outsize, offset, p;
	208	int max_linelen;
	209	uint64_t sample;
	210	char *outbuf, c;
	211
	212	ctx = o->internal;
	213	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
1437e893	214	+ ctx->samples_per_line / 8;
f3163a6c DR	215	/*
	216	* Calculate space needed for probes. Set aside 512 bytes for
	217	* extra output, e.g. trigger.
	218	*/
	219	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
	220	* (ctx->num_enabled_probes * max_linelen);
	221
1437e893 BV	222	if (!(outbuf = calloc(1, outsize + 1)))
	223	return SIGROK_ERR_MALLOC;
	224
	225	outbuf[0] = '\0';
	226	if (ctx->header) {
	227	/* The header is still here, this must be the first packet. */
	228	strncpy(outbuf, ctx->header, outsize);
	229	free(ctx->header);
	230	ctx->header = NULL;
f3163a6c DR	231
	232	/* Ensure first transition. */
	233	memcpy(&ctx->prevsample, data_in, ctx->unitsize);
	234	ctx->prevsample = ~ctx->prevsample;
1437e893 BV	235	}
	236
	237	if (length_in >= ctx->unitsize) {
	238	for (offset = 0; offset <= length_in - ctx->unitsize;
	239	offset += ctx->unitsize) {
f3163a6c	240	memcpy(&sample, data_in + offset, ctx->unitsize);
1437e893	241	for (p = 0; p < ctx->num_enabled_probes; p++) {
f3163a6c DR	242	c = (sample & ((uint64_t) 1 << p)) ? '1' : '0';
	243	ctx->linebuf[p * ctx->linebuf_len +
	244	ctx->line_offset] = c;
	245	}
	246	ctx->line_offset++;
	247	ctx->spl_cnt++;
	248
	249	/* Add a space every 8th bit. */
	250	if ((ctx->spl_cnt & 7) == 0) {
	251	for (p = 0; p < ctx->num_enabled_probes; p++)
	252	ctx->linebuf[p * ctx->linebuf_len +
	253	ctx->line_offset] = ' ';
	254	ctx->line_offset++;
1437e893 BV	255	}
	256
	257	/* End of line. */
	258	if (ctx->spl_cnt >= ctx->samples_per_line) {
	259	flush_linebufs(ctx, outbuf);
	260	ctx->line_offset = ctx->spl_cnt = 0;
	261	ctx->mark_trigger = -1;
	262	}
1437e893 BV	263	}
	264	} else {
	265	g_message("short buffer (length_in=%" PRIu64 ")", length_in);
	266	}
	267
	268	*data_out = outbuf;
	269	*length_out = strlen(outbuf);
	270
	271	return SIGROK_OK;
	272	}
	273
f3163a6c DR	274	static int init_hex(struct output *o)
	275	{
	276	return init(o, DEFAULT_BPL_HEX, MODE_HEX);
	277	}
	278
	279	static int data_hex(struct output o, char data_in, uint64_t length_in,
	280	char *data_out, uint64_t length_out)
1437e893 BV	281	{
1437e893 BV	282	struct context *ctx;
f3163a6c DR	283	unsigned int outsize, offset, p;
	284	int max_linelen;
	285	uint64_t sample;
	286	char *outbuf;
1437e893 BV	287
1437e893 BV	288	ctx = o->internal;
f3163a6c DR	289	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
	290	+ ctx->samples_per_line / 2;
	291	outsize = length_in / ctx->unitsize * ctx->num_enabled_probes
	292	/ ctx->samples_per_line * max_linelen + 512;
	293
	294	if (!(outbuf = calloc(1, outsize + 1)))
	295	return SIGROK_ERR_MALLOC;
	296
	297	outbuf[0] = '\0';
	298	if (ctx->header) {
	299	/* The header is still here, this must be the first packet. */
	300	strncpy(outbuf, ctx->header, outsize);
	301	free(ctx->header);
	302	ctx->header = NULL;
1437e893 BV	303	}
1437e893 BV	304
f3163a6c DR	305	ctx->line_offset = 0;
	306	for (offset = 0; offset <= length_in - ctx->unitsize;
	307	offset += ctx->unitsize) {
	308	memcpy(&sample, data_in + offset, ctx->unitsize);
	309	for (p = 0; p < ctx->num_enabled_probes; p++) {
	310	ctx->linevalues[p] <<= 1;
	311	if (sample & ((uint64_t) 1 << p))
	312	ctx->linevalues[p] \|= 1;
	313	sprintf(ctx->linebuf + (p * ctx->linebuf_len) +
	314	ctx->line_offset, "%.2x", ctx->linevalues[p]);
	315	}
	316	ctx->spl_cnt++;
	317
	318	/* Add a space after every complete hex byte. */
	319	if ((ctx->spl_cnt & 7) == 0) {
	320	for (p = 0; p < ctx->num_enabled_probes; p++)
	321	ctx->linebuf[p * ctx->linebuf_len +
	322	ctx->line_offset + 2] = ' ';
	323	ctx->line_offset += 3;
	324	}
	325
	326	/* End of line. */
	327	if (ctx->spl_cnt >= ctx->samples_per_line) {
	328	flush_linebufs(ctx, outbuf);
	329	ctx->line_offset = ctx->spl_cnt = 0;
	330	}
	331	}
	332
	333	*data_out = outbuf;
	334	*length_out = strlen(outbuf);
1437e893 BV	335
	336	return SIGROK_OK;
	337	}
	338
f3163a6c DR	339	static int init_ascii(struct output *o)
	340	{
	341	return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
	342	}
	343
	344	static int data_ascii(struct output o, char data_in, uint64_t length_in,
	345	char *data_out, uint64_t length_out)
	346	{
	347	struct context *ctx;
	348	unsigned int outsize, offset, p;
	349	int max_linelen;
	350	uint64_t sample;
	351	char *outbuf;
	352
	353	ctx = o->internal;
	354	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
	355	+ ctx->samples_per_line / 8;
	356	/*
	357	* Calculate space needed for probes. Set aside 512 bytes for
	358	* extra output, e.g. trigger.
	359	*/
	360	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
	361	* (ctx->num_enabled_probes * max_linelen);
	362
	363	if (!(outbuf = calloc(1, outsize + 1)))
	364	return SIGROK_ERR_MALLOC;
	365
	366	outbuf[0] = '\0';
	367	if (ctx->header) {
	368	/* The header is still here, this must be the first packet. */
	369	strncpy(outbuf, ctx->header, outsize);
	370	free(ctx->header);
	371	ctx->header = NULL;
	372	}
	373
	374	if (length_in >= ctx->unitsize) {
	375	for (offset = 0; offset <= length_in - ctx->unitsize;
	376	offset += ctx->unitsize) {
	377	memcpy(&sample, data_in + offset, ctx->unitsize);
	378
	379	char tmpval[ctx->num_enabled_probes];
	380
	381	for (p = 0; p < ctx->num_enabled_probes; p++) {
	382	uint64_t curbit = (sample & ((uint64_t) 1 << p));
	383	uint64_t prevbit = (ctx->prevsample &
	384	((uint64_t) 1 << p));
	385
	386	if (curbit < prevbit && ctx->line_offset > 0) {
	387	ctx->linebuf[p * ctx->linebuf_len +
	388	ctx->line_offset-1] = '\\';
	389	}
	390
	391	if (curbit > prevbit) {
	392	tmpval[p] = '/';
	393	} else {
	394	if (curbit)
	395	tmpval[p] = '"';
	396	else
	397	tmpval[p] = '.';
	398	}
	399	}
	400
	401	/* End of line. */
	402	if (ctx->spl_cnt >= ctx->samples_per_line) {
403	flush_linebufs(ctx, outbuf);
404	ctx->line_offset = ctx->spl_cnt = 0;
405	ctx->mark_trigger = -1;
406	}
407
408	for (p = 0; p < ctx->num_enabled_probes; p++) {
409	ctx->linebuf[p * ctx->linebuf_len +
410	ctx->line_offset] = tmpval[p];
411	}
412
413	ctx->line_offset++;
414	ctx->spl_cnt++;
415
416	ctx->prevsample = sample;
417	}
418	} else {
419	g_message("short buffer (length_in=%" PRIu64 ")", length_in);
420	}
421
422	*data_out = outbuf;
423	*length_out = strlen(outbuf);
424
425	return SIGROK_OK;
426	}
427
428
429	struct output_format output_text_bits = {
430	"bits",
431	"Bits (takes argument, default 64)",
432	DF_LOGIC,
433	init_bits,
434	data_bits,
1437e893 BV	435	event,
	436	};
	437
f3163a6c DR	438	struct output_format output_text_hex = {
	439	"hex",
	440	"Hexadecimal (takes argument, default 192)",
	441	DF_LOGIC,
	442	init_hex,
	443	data_hex,
	444	event,
	445	};
	446
	447	struct output_format output_text_ascii = {
	448	"ascii",
	449	"ASCII (takes argument, default 74)",
	450	DF_LOGIC,
	451	init_ascii,
	452	data_ascii,
	453	event,
	454	};