[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>
 * 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>
#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;
//	struct 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 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 analog_sample) +
		(ctx->num_enabled_probes * sizeof(struct 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) {
		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 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 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 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, 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 analog_sample *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 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 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 {
		g_message("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, 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 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, 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 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 {
		g_message("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 = {
	"analog_bits",
	"Bits (takes argument, default 64)",
	DF_ANALOG,
	init_bits,
	data_bits,
	event,
};
#if 0
struct sr_output_format output_analog_hex = {
	"analog_hex",
	"Hexadecimal (takes argument, default 192)",
	DF_ANALOG,
	init_hex,
	data_hex,
	event,
};

struct sr_output_format output_analog_ascii = {
	"analog_ascii",
	"ASCII (takes argument, default 74)",
	DF_ANALOG,
	init_ascii,
	data_ascii,
	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>
1437e893	26	#include <sigrok.h>
f3163a6c	27	#include "config.h"
1437e893	28
f3163a6c DR	29	#define DEFAULT_BPL_BITS 64
	30	#define DEFAULT_BPL_HEX 192
	31	#define DEFAULT_BPL_ASCII 74
1437e893	32
f3163a6c DR	33	enum outputmode {
	34	MODE_BITS = 1,
	35	MODE_HEX,
	36	MODE_ASCII,
	37	};
1437e893 BV	38
1437e893 BV	39	struct context {
1437e893	40	unsigned int num_enabled_probes;
1437e893 BV	41	int samples_per_line;
	42	unsigned int unitsize;
	43	int line_offset;
	44	int linebuf_len;
f3163a6c	45	char *probelist[65];
1437e893 BV	46	char *linebuf;
1437e893 BV	47	int spl_cnt;
f3163a6c DR	48	uint8_t *linevalues;
f3163a6c DR	49	char *header;
1437e893	50	int mark_trigger;
6eb0e3ea	51	// struct analog_sample *prevsample;
f3163a6c	52	enum outputmode mode;
1437e893 BV	53	};
1437e893 BV	54
1437e893 BV	55	static void flush_linebufs(struct context ctx, char outbuf)
	56	{
	57	static int max_probename_len = 0;
	58	int len, i;
	59
	60	if (ctx->linebuf[0] == 0)
	61	return;
	62
	63	if (max_probename_len == 0) {
	64	/* First time through... */
	65	for (i = 0; ctx->probelist[i]; i++) {
	66	len = strlen(ctx->probelist[i]);
	67	if (len > max_probename_len)
	68	max_probename_len = len;
	69	}
	70	}
	71
	72	for (i = 0; ctx->probelist[i]; i++) {
	73	sprintf(outbuf + strlen(outbuf), "%*s:%s\n", max_probename_len,
	74	ctx->probelist[i], ctx->linebuf + i * ctx->linebuf_len);
	75	}
	76
	77	/* Mark trigger with a ^ character. */
	78	if (ctx->mark_trigger != -1)
f3163a6c DR	79	{
	80	int space_offset = ctx->mark_trigger / 8;
	81
	82	if (ctx->mode == MODE_ASCII)
	83	space_offset = 0;
	84
1437e893	85	sprintf(outbuf + strlen(outbuf), "T:%*s^\n",
f3163a6c DR	86	ctx->mark_trigger + space_offset, "");
f3163a6c DR	87	}
1437e893 BV	88
	89	memset(ctx->linebuf, 0, i * ctx->linebuf_len);
	90	}
	91
f50f3f40	92	static int init(struct sr_output *o, int default_spl, enum outputmode mode)
1437e893 BV	93	{
	94	struct context *ctx;
	95	struct probe *probe;
	96	GSList *l;
	97	uint64_t samplerate;
	98	int num_probes;
	99	char *samplerate_s;
	100
	101	if (!(ctx = calloc(1, sizeof(struct context))))
e46b8fb1	102	return SR_ERR_MALLOC;
1437e893	103
1437e893	104	o->internal = ctx;
1437e893	105	ctx->num_enabled_probes = 0;
f3163a6c DR	106
	107	for (l = o->device->probes; l; l = l->next) {
	108	probe = l->data;
	109	if (!probe->enabled)
	110	continue;
	111	ctx->probelist[ctx->num_enabled_probes++] = probe->name;
	112	}
	113
	114	ctx->probelist[ctx->num_enabled_probes] = 0;
6eb0e3ea DR	115	ctx->unitsize = sizeof(struct analog_sample) +
6eb0e3ea DR	116	(ctx->num_enabled_probes * sizeof(struct analog_probe));
f3163a6c DR	117	ctx->line_offset = 0;
f3163a6c DR	118	ctx->spl_cnt = 0;
1437e893	119	ctx->mark_trigger = -1;
f3163a6c DR	120	ctx->mode = mode;
f3163a6c DR	121
9b36e360 BV	122	if (o->param && o->param[0]) {
	123	ctx->samples_per_line = strtoul(o->param, NULL, 10);
	124	if (ctx->samples_per_line < 1)
e46b8fb1	125	return SR_ERR;
9b36e360	126	} else
f3163a6c	127	ctx->samples_per_line = default_spl;
9b36e360	128
f3163a6c DR	129	if (!(ctx->header = malloc(512))) {
f3163a6c DR	130	free(ctx);
e46b8fb1	131	return SR_ERR_MALLOC;
1437e893	132	}
1437e893 BV	133
1437e893 BV	134	snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
f3163a6c	135	num_probes = g_slist_length(o->device->probes);
1437e893	136	if (o->device->plugin) {
1437e893 BV	137	samplerate = ((uint64_t ) o->device->plugin->get_device_info(
	138	o->device->plugin_index, DI_CUR_SAMPLERATE));
	139	if (!(samplerate_s = sigrok_samplerate_string(samplerate))) {
	140	free(ctx->header);
	141	free(ctx);
e46b8fb1	142	return SR_ERR;
1437e893 BV	143	}
	144	snprintf(ctx->header + strlen(ctx->header),
	145	511 - strlen(ctx->header),
	146	"Acquisition with %d/%d probes at %s\n",
	147	ctx->num_enabled_probes, num_probes, samplerate_s);
	148	free(samplerate_s);
	149	}
	150
f3163a6c DR	151	ctx->linebuf_len = ctx->samples_per_line * 2 + 4;
	152	if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) {
	153	free(ctx->header);
	154	free(ctx);
e46b8fb1	155	return SR_ERR_MALLOC;
f3163a6c DR	156	}
f3163a6c DR	157	if (!(ctx->linevalues = calloc(1, num_probes))) {
1437e893 BV	158	free(ctx->header);
1437e893 BV	159	free(ctx);
e46b8fb1	160	return SR_ERR_MALLOC;
1437e893 BV	161	}
1437e893 BV	162
e46b8fb1	163	return SR_OK;
1437e893 BV	164	}
1437e893 BV	165
f50f3f40	166	static int event(struct sr_output o, int event_type, char *data_out,
f3163a6c	167	uint64_t *length_out)
1437e893 BV	168	{
1437e893 BV	169	struct context *ctx;
f3163a6c DR	170	int outsize;
f3163a6c DR	171	char *outbuf;
1437e893 BV	172
1437e893 BV	173	ctx = o->internal;
f3163a6c DR	174	switch (event_type) {
	175	case DF_TRIGGER:
	176	ctx->mark_trigger = ctx->spl_cnt;
	177	*data_out = NULL;
	178	*length_out = 0;
	179	break;
	180	case DF_END:
	181	outsize = ctx->num_enabled_probes
	182	* (ctx->samples_per_line + 20) + 512;
	183	if (!(outbuf = calloc(1, outsize)))
e46b8fb1	184	return SR_ERR_MALLOC;
f3163a6c DR	185	flush_linebufs(ctx, outbuf);
	186	*data_out = outbuf;
	187	*length_out = strlen(outbuf);
	188	free(o->internal);
	189	o->internal = NULL;
	190	break;
	191	default:
	192	*data_out = NULL;
	193	*length_out = 0;
	194	break;
	195	}
	196
e46b8fb1	197	return SR_OK;
f3163a6c DR	198	}
f3163a6c DR	199
f50f3f40	200	static int init_bits(struct sr_output *o)
f3163a6c DR	201	{
	202	return init(o, DEFAULT_BPL_BITS, MODE_BITS);
	203	}
	204
f50f3f40	205	static int data_bits(struct sr_output o, char data_in, uint64_t length_in,
f3163a6c DR	206	char *data_out, uint64_t length_out)
	207	{
	208	struct context *ctx;
	209	unsigned int outsize, offset, p;
	210	int max_linelen;
6eb0e3ea	211	struct analog_sample *sample;
f3163a6c DR	212	char *outbuf, c;
	213
	214	ctx = o->internal;
	215	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
1437e893	216	+ ctx->samples_per_line / 8;
f3163a6c DR	217	/*
	218	* Calculate space needed for probes. Set aside 512 bytes for
	219	* extra output, e.g. trigger.
	220	*/
	221	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
	222	* (ctx->num_enabled_probes * max_linelen);
	223
1437e893	224	if (!(outbuf = calloc(1, outsize + 1)))
e46b8fb1	225	return SR_ERR_MALLOC;
1437e893 BV	226
	227	outbuf[0] = '\0';
	228	if (ctx->header) {
	229	/* The header is still here, this must be the first packet. */
	230	strncpy(outbuf, ctx->header, outsize);
	231	free(ctx->header);
	232	ctx->header = NULL;
f3163a6c DR	233
f3163a6c DR	234	/* Ensure first transition. */
6eb0e3ea DR	235	// memcpy(&ctx->prevsample, data_in, ctx->unitsize);
6eb0e3ea DR	236	// ctx->prevsample = ~ctx->prevsample;
1437e893 BV	237	}
	238
	239	if (length_in >= ctx->unitsize) {
	240	for (offset = 0; offset <= length_in - ctx->unitsize;
	241	offset += ctx->unitsize) {
6eb0e3ea	242	sample = (struct analog_sample *) (data_in + offset);
1437e893	243	for (p = 0; p < ctx->num_enabled_probes; p++) {
6eb0e3ea DR	244	int val = sample->probes[p].val;
	245	int res = sample->probes[p].res;
	246	if (res == 1)
	247	c = '0' + (val & ((1 << res) - 1));
	248	else
	249	/*
	250	* Scale analog resolution down so it
	251	* fits 25 letters
	252	*/
	253	c = 'A' + (((val & ((1 << res) - 1)) /
	254	(res * res)) / 10);
f3163a6c DR	255	ctx->linebuf[p * ctx->linebuf_len +
	256	ctx->line_offset] = c;
	257	}
	258	ctx->line_offset++;
	259	ctx->spl_cnt++;
	260
	261	/* Add a space every 8th bit. */
	262	if ((ctx->spl_cnt & 7) == 0) {
	263	for (p = 0; p < ctx->num_enabled_probes; p++)
	264	ctx->linebuf[p * ctx->linebuf_len +
	265	ctx->line_offset] = ' ';
	266	ctx->line_offset++;
1437e893 BV	267	}
	268
	269	/* End of line. */
	270	if (ctx->spl_cnt >= ctx->samples_per_line) {
	271	flush_linebufs(ctx, outbuf);
	272	ctx->line_offset = ctx->spl_cnt = 0;
	273	ctx->mark_trigger = -1;
	274	}
1437e893 BV	275	}
	276	} else {
	277	g_message("short buffer (length_in=%" PRIu64 ")", length_in);
	278	}
	279
	280	*data_out = outbuf;
	281	*length_out = strlen(outbuf);
	282
e46b8fb1	283	return SR_OK;
1437e893	284	}
6eb0e3ea	285	#if 0
f50f3f40	286	static int init_hex(struct sr_output *o)
f3163a6c DR	287	{
	288	return init(o, DEFAULT_BPL_HEX, MODE_HEX);
	289	}
	290
f50f3f40	291	static int data_hex(struct sr_output o, char data_in, uint64_t length_in,
f3163a6c	292	char *data_out, uint64_t length_out)
1437e893 BV	293	{
1437e893 BV	294	struct context *ctx;
f3163a6c DR	295	unsigned int outsize, offset, p;
	296	int max_linelen;
	297	uint64_t sample;
	298	char *outbuf;
1437e893 BV	299
1437e893 BV	300	ctx = o->internal;
f3163a6c DR	301	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
	302	+ ctx->samples_per_line / 2;
	303	outsize = length_in / ctx->unitsize * ctx->num_enabled_probes
	304	/ ctx->samples_per_line * max_linelen + 512;
	305
	306	if (!(outbuf = calloc(1, outsize + 1)))
e46b8fb1	307	return SR_ERR_MALLOC;
f3163a6c DR	308
	309	outbuf[0] = '\0';
	310	if (ctx->header) {
	311	/* The header is still here, this must be the first packet. */
	312	strncpy(outbuf, ctx->header, outsize);
	313	free(ctx->header);
	314	ctx->header = NULL;
1437e893 BV	315	}
1437e893 BV	316
f3163a6c DR	317	ctx->line_offset = 0;
	318	for (offset = 0; offset <= length_in - ctx->unitsize;
	319	offset += ctx->unitsize) {
	320	memcpy(&sample, data_in + offset, ctx->unitsize);
	321	for (p = 0; p < ctx->num_enabled_probes; p++) {
	322	ctx->linevalues[p] <<= 1;
	323	if (sample & ((uint64_t) 1 << p))
	324	ctx->linevalues[p] \|= 1;
	325	sprintf(ctx->linebuf + (p * ctx->linebuf_len) +
	326	ctx->line_offset, "%.2x", ctx->linevalues[p]);
	327	}
	328	ctx->spl_cnt++;
	329
	330	/* Add a space after every complete hex byte. */
	331	if ((ctx->spl_cnt & 7) == 0) {
	332	for (p = 0; p < ctx->num_enabled_probes; p++)
	333	ctx->linebuf[p * ctx->linebuf_len +
	334	ctx->line_offset + 2] = ' ';
	335	ctx->line_offset += 3;
	336	}
	337
	338	/* End of line. */
	339	if (ctx->spl_cnt >= ctx->samples_per_line) {
	340	flush_linebufs(ctx, outbuf);
	341	ctx->line_offset = ctx->spl_cnt = 0;
	342	}
	343	}
	344
	345	*data_out = outbuf;
	346	*length_out = strlen(outbuf);
1437e893	347
e46b8fb1	348	return SR_OK;
1437e893 BV	349	}
1437e893 BV	350
f50f3f40	351	static int init_ascii(struct sr_output *o)
f3163a6c DR	352	{
	353	return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
	354	}
	355
f50f3f40	356	static int data_ascii(struct sr_output o, char data_in, uint64_t length_in,
f3163a6c DR	357	char *data_out, uint64_t length_out)
	358	{
	359	struct context *ctx;
	360	unsigned int outsize, offset, p;
	361	int max_linelen;
	362	uint64_t sample;
	363	char *outbuf;
	364
	365	ctx = o->internal;
	366	max_linelen = MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
	367	+ ctx->samples_per_line / 8;
	368	/*
	369	* Calculate space needed for probes. Set aside 512 bytes for
	370	* extra output, e.g. trigger.
	371	*/
	372	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
	373	* (ctx->num_enabled_probes * max_linelen);
	374
	375	if (!(outbuf = calloc(1, outsize + 1)))
e46b8fb1	376	return SR_ERR_MALLOC;
f3163a6c DR	377
	378	outbuf[0] = '\0';
	379	if (ctx->header) {
	380	/* The header is still here, this must be the first packet. */
	381	strncpy(outbuf, ctx->header, outsize);
	382	free(ctx->header);
	383	ctx->header = NULL;
	384	}
	385
	386	if (length_in >= ctx->unitsize) {
	387	for (offset = 0; offset <= length_in - ctx->unitsize;
	388	offset += ctx->unitsize) {
	389	memcpy(&sample, data_in + offset, ctx->unitsize);
	390
	391	char tmpval[ctx->num_enabled_probes];
	392
	393	for (p = 0; p < ctx->num_enabled_probes; p++) {
	394	uint64_t curbit = (sample & ((uint64_t) 1 << p));
	395	uint64_t prevbit = (ctx->prevsample &
	396	((uint64_t) 1 << p));
	397
	398	if (curbit < prevbit && ctx->line_offset > 0) {
	399	ctx->linebuf[p * ctx->linebuf_len +
	400	ctx->line_offset-1] = '\\';
	401	}
	402
	403	if (curbit > prevbit) {
	404	tmpval[p] = '/';
	405	} else {
	406	if (curbit)
	407	tmpval[p] = '"';
	408	else
	409	tmpval[p] = '.';
	410	}
	411	}
	412
	413	/* End of line. */
	414	if (ctx->spl_cnt >= ctx->samples_per_line) {
	415	flush_linebufs(ctx, outbuf);
	416	ctx->line_offset = ctx->spl_cnt = 0;
	417	ctx->mark_trigger = -1;
	418	}
	419
	420	for (p = 0; p < ctx->num_enabled_probes; p++) {
	421	ctx->linebuf[p * ctx->linebuf_len +
	422	ctx->line_offset] = tmpval[p];
	423	}
	424
	425	ctx->line_offset++;
	426	ctx->spl_cnt++;
	427
	428	ctx->prevsample = sample;
	429	}
	430	} else {
	431	g_message("short buffer (length_in=%" PRIu64 ")", length_in);
	432	}
	433
	434	*data_out = outbuf;
	435	*length_out = strlen(outbuf);
	436
e46b8fb1	437	return SR_OK;
f3163a6c	438	}
6eb0e3ea	439	#endif
f3163a6c	440
f50f3f40	441	struct sr_output_format output_analog_bits = {
6eb0e3ea	442	"analog_bits",
f3163a6c	443	"Bits (takes argument, default 64)",
6eb0e3ea	444	DF_ANALOG,
f3163a6c DR	445	init_bits,
f3163a6c DR	446	data_bits,
1437e893 BV	447	event,
1437e893 BV	448	};
6eb0e3ea	449	#if 0
f50f3f40	450	struct sr_output_format output_analog_hex = {
6eb0e3ea	451	"analog_hex",
f3163a6c	452	"Hexadecimal (takes argument, default 192)",
6eb0e3ea	453	DF_ANALOG,
f3163a6c DR	454	init_hex,
	455	data_hex,
	456	event,
	457	};
	458
f50f3f40	459	struct sr_output_format output_analog_ascii = {
6eb0e3ea	460	"analog_ascii",
f3163a6c	461	"ASCII (takes argument, default 74)",
6eb0e3ea	462	DF_ANALOG,
f3163a6c DR	463	init_ascii,
	464	data_ascii,
	465	event,
	466	};
6eb0e3ea	467	#endif