[libsigrok.git] / 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>
 * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include "sigrok.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;
//	struct sr_analog_sample *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 sr_output *o, int default_spl, enum outputmode mode)
{
	struct context *ctx;
	struct sr_probe *probe;
	GSList *l;
	uint64_t samplerate;
	int num_probes;
	char *samplerate_s;

	if (!(ctx = calloc(1, sizeof(struct context))))
		return SR_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 = sizeof(struct sr_analog_sample) +
		(ctx->num_enabled_probes * sizeof(struct sr_analog_probe));
	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 SR_ERR;
	} else
		ctx->samples_per_line = default_spl;

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

	snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
	num_probes = g_slist_length(o->device->probes);
	if (o->device->plugin && sr_device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) {
		samplerate = *((uint64_t *) o->device->plugin->get_device_info(
				o->device->plugin_index, SR_DI_CUR_SAMPLERATE));
		if (!(samplerate_s = sr_samplerate_string(samplerate))) {
			free(ctx->header);
			free(ctx);
			return SR_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 SR_ERR_MALLOC;
	}
	if (!(ctx->linevalues = calloc(1, num_probes))) {
		free(ctx->header);
		free(ctx);
		return SR_ERR_MALLOC;
	}

	return SR_OK;
}

static int event(struct sr_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 SR_DF_TRIGGER:
		ctx->mark_trigger = ctx->spl_cnt;
		*data_out = NULL;
		*length_out = 0;
		break;
	case SR_DF_END:
		outsize = ctx->num_enabled_probes
				* (ctx->samples_per_line + 20) + 512;
		if (!(outbuf = calloc(1, outsize)))
			return SR_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 SR_OK;
}

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

static int data_bits(struct sr_output *o, const 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;
	struct sr_analog_sample *sample;
	char *outbuf, c;

	ctx = o->internal;
	max_linelen = SR_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 SR_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) {
			sample = (struct sr_analog_sample *) (data_in + offset);
			for (p = 0; p < ctx->num_enabled_probes; p++) {
				int val = sample->probes[p].val;
				int res = sample->probes[p].res;
				if (res == 1)
					c = '0' + (val & ((1 << res) - 1));
				else
					/*
					 * Scale analog resolution down so it
					 * fits 25 letters
					 */
					c = 'A' + (((val & ((1 << res) - 1)) /
							(res * res)) / 10);
				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 {
		sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
	}

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

	return SR_OK;
}
#if 0
static int init_hex(struct sr_output *o)
{
	return init(o, DEFAULT_BPL_HEX, MODE_HEX);
}

static int data_hex(struct sr_output *o, const 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 = SR_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 SR_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 SR_OK;
}

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

static int data_ascii(struct sr_output *o, const 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 = SR_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 SR_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 {
		sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
	}

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

	return SR_OK;
}
#endif

struct sr_output_format output_analog_bits = {
	.id = "analog_bits",
	.description = "Bits (takes argument, default 64)",
	.df_type = SR_DF_ANALOG,
	.init = init_bits,
	.data = data_bits,
	.event = event,
};
#if 0
struct sr_output_format output_analog_hex = {
	.id = "analog_hex",
	.description = "Hexadecimal (takes argument, default 192)",
	.df_type = SR_DF_ANALOG,
	.init = init_hex,
	.data = data_hex,
	.event = event,
};

struct sr_output_format output_analog_ascii = {
	.id = "analog_ascii",
	.description = "ASCII (takes argument, default 74)",
	.df_type = SR_DF_ANALOG,
	.init = init_ascii,
	.data = data_ascii,
	.event = event,
};
#endif
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>
6eb0e3ea	6	* Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com>
1437e893 BV	7	*
	8	* This program is free software: you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation, either version 3 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	20	*/
	21
1437e893	22	#include <stdlib.h>
f3163a6c	23	#include <stdio.h>
1437e893	24	#include <string.h>
f3163a6c	25	#include <glib.h>
cd315a80	26	#include "sigrok.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;
809c5f20	50	// struct sr_analog_sample *prevsample;
f3163a6c	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
f50f3f40	91	static int init(struct sr_output *o, int default_spl, enum outputmode mode)
1437e893 BV	92	{
1437e893 BV	93	struct context *ctx;
1afe8989	94	struct sr_probe *probe;
1437e893 BV	95	GSList *l;
	96	uint64_t samplerate;
	97	int num_probes;
	98	char *samplerate_s;
	99
	100	if (!(ctx = calloc(1, sizeof(struct context))))
e46b8fb1	101	return SR_ERR_MALLOC;
1437e893	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;
809c5f20 UH	114	ctx->unitsize = sizeof(struct sr_analog_sample) +
809c5f20 UH	115	(ctx->num_enabled_probes * sizeof(struct sr_analog_probe));
f3163a6c DR	116	ctx->line_offset = 0;
f3163a6c DR	117	ctx->spl_cnt = 0;
1437e893	118	ctx->mark_trigger = -1;
f3163a6c DR	119	ctx->mode = mode;
f3163a6c DR	120
9b36e360 BV	121	if (o->param && o->param[0]) {
	122	ctx->samples_per_line = strtoul(o->param, NULL, 10);
	123	if (ctx->samples_per_line < 1)
e46b8fb1	124	return SR_ERR;
9b36e360	125	} else
f3163a6c	126	ctx->samples_per_line = default_spl;
9b36e360	127
f3163a6c DR	128	if (!(ctx->header = malloc(512))) {
f3163a6c DR	129	free(ctx);
e46b8fb1	130	return SR_ERR_MALLOC;
1437e893	131	}
1437e893 BV	132
1437e893 BV	133	snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
f3163a6c	134	num_probes = g_slist_length(o->device->probes);
2bf4aca6	135	if (o->device->plugin && sr_device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) {
1437e893	136	samplerate = ((uint64_t ) o->device->plugin->get_device_info(
5a2326a7	137	o->device->plugin_index, SR_DI_CUR_SAMPLERATE));
a00ba012	138	if (!(samplerate_s = sr_samplerate_string(samplerate))) {
1437e893 BV	139	free(ctx->header);
1437e893 BV	140	free(ctx);
e46b8fb1	141	return SR_ERR;
1437e893 BV	142	}
	143	snprintf(ctx->header + strlen(ctx->header),
	144	511 - strlen(ctx->header),
	145	"Acquisition with %d/%d probes at %s\n",
	146	ctx->num_enabled_probes, num_probes, samplerate_s);
	147	free(samplerate_s);
	148	}
	149
f3163a6c DR	150	ctx->linebuf_len = ctx->samples_per_line * 2 + 4;
	151	if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) {
	152	free(ctx->header);
	153	free(ctx);
e46b8fb1	154	return SR_ERR_MALLOC;
f3163a6c DR	155	}
f3163a6c DR	156	if (!(ctx->linevalues = calloc(1, num_probes))) {
1437e893 BV	157	free(ctx->header);
1437e893 BV	158	free(ctx);
e46b8fb1	159	return SR_ERR_MALLOC;
1437e893 BV	160	}
1437e893 BV	161
e46b8fb1	162	return SR_OK;
1437e893 BV	163	}
1437e893 BV	164
f50f3f40	165	static int event(struct sr_output o, int event_type, char *data_out,
f3163a6c	166	uint64_t *length_out)
1437e893 BV	167	{
1437e893 BV	168	struct context *ctx;
f3163a6c DR	169	int outsize;
f3163a6c DR	170	char *outbuf;
1437e893 BV	171
1437e893 BV	172	ctx = o->internal;
f3163a6c	173	switch (event_type) {
5a2326a7	174	case SR_DF_TRIGGER:
f3163a6c DR	175	ctx->mark_trigger = ctx->spl_cnt;
	176	*data_out = NULL;
	177	*length_out = 0;
	178	break;
5a2326a7	179	case SR_DF_END:
f3163a6c DR	180	outsize = ctx->num_enabled_probes
	181	* (ctx->samples_per_line + 20) + 512;
	182	if (!(outbuf = calloc(1, outsize)))
e46b8fb1	183	return SR_ERR_MALLOC;
f3163a6c DR	184	flush_linebufs(ctx, outbuf);
	185	*data_out = outbuf;
	186	*length_out = strlen(outbuf);
	187	free(o->internal);
	188	o->internal = NULL;
	189	break;
	190	default:
	191	*data_out = NULL;
	192	*length_out = 0;
	193	break;
	194	}
	195
e46b8fb1	196	return SR_OK;
f3163a6c DR	197	}
f3163a6c DR	198
f50f3f40	199	static int init_bits(struct sr_output *o)
f3163a6c DR	200	{
	201	return init(o, DEFAULT_BPL_BITS, MODE_BITS);
	202	}
	203
54ac5277 UH	204	static int data_bits(struct sr_output o, const char data_in,
54ac5277 UH	205	uint64_t length_in, char *data_out, uint64_t length_out)
f3163a6c DR	206	{
	207	struct context *ctx;
	208	unsigned int outsize, offset, p;
	209	int max_linelen;
809c5f20	210	struct sr_analog_sample *sample;
f3163a6c DR	211	char *outbuf, c;
	212
	213	ctx = o->internal;
9688b443	214	max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
1437e893	215	+ ctx->samples_per_line / 8;
f3163a6c DR	216	/*
	217	* Calculate space needed for probes. Set aside 512 bytes for
	218	* extra output, e.g. trigger.
	219	*/
	220	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
	221	* (ctx->num_enabled_probes * max_linelen);
	222
1437e893	223	if (!(outbuf = calloc(1, outsize + 1)))
e46b8fb1	224	return SR_ERR_MALLOC;
1437e893 BV	225
	226	outbuf[0] = '\0';
	227	if (ctx->header) {
	228	/* The header is still here, this must be the first packet. */
	229	strncpy(outbuf, ctx->header, outsize);
	230	free(ctx->header);
	231	ctx->header = NULL;
f3163a6c DR	232
f3163a6c DR	233	/* Ensure first transition. */
6eb0e3ea DR	234	// memcpy(&ctx->prevsample, data_in, ctx->unitsize);
6eb0e3ea DR	235	// ctx->prevsample = ~ctx->prevsample;
1437e893 BV	236	}
	237
	238	if (length_in >= ctx->unitsize) {
	239	for (offset = 0; offset <= length_in - ctx->unitsize;
	240	offset += ctx->unitsize) {
809c5f20	241	sample = (struct sr_analog_sample *) (data_in + offset);
1437e893	242	for (p = 0; p < ctx->num_enabled_probes; p++) {
6eb0e3ea DR	243	int val = sample->probes[p].val;
	244	int res = sample->probes[p].res;
	245	if (res == 1)
	246	c = '0' + (val & ((1 << res) - 1));
	247	else
	248	/*
	249	* Scale analog resolution down so it
	250	* fits 25 letters
	251	*/
	252	c = 'A' + (((val & ((1 << res) - 1)) /
	253	(res * res)) / 10);
f3163a6c DR	254	ctx->linebuf[p * ctx->linebuf_len +
	255	ctx->line_offset] = c;
	256	}
	257	ctx->line_offset++;
	258	ctx->spl_cnt++;
	259
	260	/* Add a space every 8th bit. */
	261	if ((ctx->spl_cnt & 7) == 0) {
	262	for (p = 0; p < ctx->num_enabled_probes; p++)
	263	ctx->linebuf[p * ctx->linebuf_len +
	264	ctx->line_offset] = ' ';
	265	ctx->line_offset++;
1437e893 BV	266	}
	267
	268	/* End of line. */
	269	if (ctx->spl_cnt >= ctx->samples_per_line) {
	270	flush_linebufs(ctx, outbuf);
	271	ctx->line_offset = ctx->spl_cnt = 0;
	272	ctx->mark_trigger = -1;
	273	}
1437e893 BV	274	}
1437e893 BV	275	} else {
b08024a8	276	sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
1437e893 BV	277	}
	278
	279	*data_out = outbuf;
	280	*length_out = strlen(outbuf);
	281
e46b8fb1	282	return SR_OK;
1437e893	283	}
6eb0e3ea	284	#if 0
f50f3f40	285	static int init_hex(struct sr_output *o)
f3163a6c DR	286	{
	287	return init(o, DEFAULT_BPL_HEX, MODE_HEX);
	288	}
	289
54ac5277 UH	290	static int data_hex(struct sr_output o, const char data_in,
54ac5277 UH	291	uint64_t length_in, char *data_out, uint64_t length_out)
1437e893 BV	292	{
1437e893 BV	293	struct context *ctx;
f3163a6c DR	294	unsigned int outsize, offset, p;
	295	int max_linelen;
	296	uint64_t sample;
	297	char *outbuf;
1437e893 BV	298
1437e893 BV	299	ctx = o->internal;
9688b443	300	max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
f3163a6c DR	301	+ ctx->samples_per_line / 2;
	302	outsize = length_in / ctx->unitsize * ctx->num_enabled_probes
	303	/ ctx->samples_per_line * max_linelen + 512;
	304
	305	if (!(outbuf = calloc(1, outsize + 1)))
e46b8fb1	306	return SR_ERR_MALLOC;
f3163a6c DR	307
	308	outbuf[0] = '\0';
	309	if (ctx->header) {
	310	/* The header is still here, this must be the first packet. */
	311	strncpy(outbuf, ctx->header, outsize);
	312	free(ctx->header);
	313	ctx->header = NULL;
1437e893 BV	314	}
1437e893 BV	315
f3163a6c DR	316	ctx->line_offset = 0;
	317	for (offset = 0; offset <= length_in - ctx->unitsize;
	318	offset += ctx->unitsize) {
	319	memcpy(&sample, data_in + offset, ctx->unitsize);
	320	for (p = 0; p < ctx->num_enabled_probes; p++) {
	321	ctx->linevalues[p] <<= 1;
	322	if (sample & ((uint64_t) 1 << p))
	323	ctx->linevalues[p] \|= 1;
	324	sprintf(ctx->linebuf + (p * ctx->linebuf_len) +
	325	ctx->line_offset, "%.2x", ctx->linevalues[p]);
	326	}
	327	ctx->spl_cnt++;
	328
	329	/* Add a space after every complete hex byte. */
	330	if ((ctx->spl_cnt & 7) == 0) {
	331	for (p = 0; p < ctx->num_enabled_probes; p++)
	332	ctx->linebuf[p * ctx->linebuf_len +
	333	ctx->line_offset + 2] = ' ';
	334	ctx->line_offset += 3;
	335	}
	336
	337	/* End of line. */
	338	if (ctx->spl_cnt >= ctx->samples_per_line) {
	339	flush_linebufs(ctx, outbuf);
	340	ctx->line_offset = ctx->spl_cnt = 0;
	341	}
	342	}
	343
	344	*data_out = outbuf;
	345	*length_out = strlen(outbuf);
1437e893	346
e46b8fb1	347	return SR_OK;
1437e893 BV	348	}
1437e893 BV	349
f50f3f40	350	static int init_ascii(struct sr_output *o)
f3163a6c DR	351	{
	352	return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
	353	}
	354
54ac5277 UH	355	static int data_ascii(struct sr_output o, const char data_in,
54ac5277 UH	356	uint64_t length_in, char *data_out, uint64_t length_out)
f3163a6c DR	357	{
	358	struct context *ctx;
	359	unsigned int outsize, offset, p;
	360	int max_linelen;
	361	uint64_t sample;
	362	char *outbuf;
	363
	364	ctx = o->internal;
9688b443	365	max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
f3163a6c DR	366	+ ctx->samples_per_line / 8;
	367	/*
	368	* Calculate space needed for probes. Set aside 512 bytes for
	369	* extra output, e.g. trigger.
	370	*/
	371	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
	372	* (ctx->num_enabled_probes * max_linelen);
	373
	374	if (!(outbuf = calloc(1, outsize + 1)))
e46b8fb1	375	return SR_ERR_MALLOC;
f3163a6c DR	376
	377	outbuf[0] = '\0';
	378	if (ctx->header) {
	379	/* The header is still here, this must be the first packet. */
	380	strncpy(outbuf, ctx->header, outsize);
	381	free(ctx->header);
	382	ctx->header = NULL;
	383	}
	384
	385	if (length_in >= ctx->unitsize) {
	386	for (offset = 0; offset <= length_in - ctx->unitsize;
	387	offset += ctx->unitsize) {
	388	memcpy(&sample, data_in + offset, ctx->unitsize);
	389
	390	char tmpval[ctx->num_enabled_probes];
	391
	392	for (p = 0; p < ctx->num_enabled_probes; p++) {
	393	uint64_t curbit = (sample & ((uint64_t) 1 << p));
	394	uint64_t prevbit = (ctx->prevsample &
	395	((uint64_t) 1 << p));
	396
	397	if (curbit < prevbit && ctx->line_offset > 0) {
	398	ctx->linebuf[p * ctx->linebuf_len +
	399	ctx->line_offset-1] = '\\';
	400	}
	401
	402	if (curbit > prevbit) {
	403	tmpval[p] = '/';
	404	} else {
	405	if (curbit)
	406	tmpval[p] = '"';
	407	else
	408	tmpval[p] = '.';
	409	}
	410	}
	411
	412	/* End of line. */
	413	if (ctx->spl_cnt >= ctx->samples_per_line) {
	414	flush_linebufs(ctx, outbuf);
	415	ctx->line_offset = ctx->spl_cnt = 0;
	416	ctx->mark_trigger = -1;
	417	}
	418
	419	for (p = 0; p < ctx->num_enabled_probes; p++) {
	420	ctx->linebuf[p * ctx->linebuf_len +
	421	ctx->line_offset] = tmpval[p];
	422	}
	423
	424	ctx->line_offset++;
	425	ctx->spl_cnt++;
	426
	427	ctx->prevsample = sample;
	428	}
	429	} else {
b08024a8	430	sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
f3163a6c DR	431	}
	432
	433	*data_out = outbuf;
	434	*length_out = strlen(outbuf);
	435
e46b8fb1	436	return SR_OK;
f3163a6c	437	}
6eb0e3ea	438	#endif
f3163a6c	439
f50f3f40	440	struct sr_output_format output_analog_bits = {
cdb3573c	441	.id = "analog_bits",
d494a4aa UH	442	.description = "Bits (takes argument, default 64)",
	443	.df_type = SR_DF_ANALOG,
	444	.init = init_bits,
	445	.data = data_bits,
	446	.event = event,
1437e893	447	};
6eb0e3ea	448	#if 0
f50f3f40	449	struct sr_output_format output_analog_hex = {
cdb3573c	450	.id = "analog_hex",
d494a4aa UH	451	.description = "Hexadecimal (takes argument, default 192)",
	452	.df_type = SR_DF_ANALOG,
	453	.init = init_hex,
	454	.data = data_hex,
	455	.event = event,
f3163a6c DR	456	};
f3163a6c DR	457
f50f3f40	458	struct sr_output_format output_analog_ascii = {
cdb3573c	459	.id = "analog_ascii",
d494a4aa UH	460	.description = "ASCII (takes argument, default 74)",
	461	.df_type = SR_DF_ANALOG,
	462	.init = init_ascii,
	463	.data = data_ascii,
	464	.event = event,
f3163a6c	465	};
6eb0e3ea	466	#endif