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97554432 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Bert Vermeulen <bert@biot.com> | |
5 | * Copyright (C) 2011 HÃ¥vard Espeland <gus@ping.uio.no> | |
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 | ||
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <glib.h> | |
cd315a80 UH |
24 | #include "sigrok.h" |
25 | #include "sigrok-internal.h" | |
97554432 BV |
26 | #include "text.h" |
27 | ||
7c1d391c | 28 | SR_PRIV int init_ascii(struct sr_output *o) |
97554432 BV |
29 | { |
30 | return init(o, DEFAULT_BPL_ASCII, MODE_ASCII); | |
31 | } | |
32 | ||
7c1d391c UH |
33 | SR_PRIV int data_ascii(struct sr_output *o, const char *data_in, |
34 | uint64_t length_in, char **data_out, | |
35 | uint64_t *length_out) | |
97554432 BV |
36 | { |
37 | struct context *ctx; | |
38 | unsigned int outsize, offset, p; | |
39 | int max_linelen; | |
40 | uint64_t sample; | |
41 | char *outbuf; | |
42 | ||
43 | ctx = o->internal; | |
9688b443 | 44 | max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line |
97554432 BV |
45 | + ctx->samples_per_line / 8; |
46 | /* | |
47 | * Calculate space needed for probes. Set aside 512 bytes for | |
48 | * extra output, e.g. trigger. | |
49 | */ | |
50 | outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line) | |
51 | * (ctx->num_enabled_probes * max_linelen); | |
52 | ||
53 | if (!(outbuf = calloc(1, outsize + 1))) | |
e46b8fb1 | 54 | return SR_ERR_MALLOC; |
97554432 BV |
55 | |
56 | outbuf[0] = '\0'; | |
57 | if (ctx->header) { | |
58 | /* The header is still here, this must be the first packet. */ | |
59 | strncpy(outbuf, ctx->header, outsize); | |
60 | free(ctx->header); | |
61 | ctx->header = NULL; | |
62 | } | |
63 | ||
64 | if (length_in >= ctx->unitsize) { | |
65 | for (offset = 0; offset <= length_in - ctx->unitsize; | |
66 | offset += ctx->unitsize) { | |
67 | memcpy(&sample, data_in + offset, ctx->unitsize); | |
68 | ||
69 | char tmpval[ctx->num_enabled_probes]; | |
70 | ||
71 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
72 | uint64_t curbit = (sample & ((uint64_t) 1 << p)); | |
73 | uint64_t prevbit = (ctx->prevsample & | |
74 | ((uint64_t) 1 << p)); | |
75 | ||
76 | if (curbit < prevbit && ctx->line_offset > 0) { | |
77 | ctx->linebuf[p * ctx->linebuf_len + | |
78 | ctx->line_offset-1] = '\\'; | |
79 | } | |
80 | ||
81 | if (curbit > prevbit) { | |
82 | tmpval[p] = '/'; | |
83 | } else { | |
84 | if (curbit) | |
85 | tmpval[p] = '"'; | |
86 | else | |
87 | tmpval[p] = '.'; | |
88 | } | |
89 | } | |
90 | ||
91 | /* End of line. */ | |
92 | if (ctx->spl_cnt >= ctx->samples_per_line) { | |
93 | flush_linebufs(ctx, outbuf); | |
94 | ctx->line_offset = ctx->spl_cnt = 0; | |
95 | ctx->mark_trigger = -1; | |
96 | } | |
97 | ||
98 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
99 | ctx->linebuf[p * ctx->linebuf_len + | |
100 | ctx->line_offset] = tmpval[p]; | |
101 | } | |
102 | ||
103 | ctx->line_offset++; | |
104 | ctx->spl_cnt++; | |
105 | ||
106 | ctx->prevsample = sample; | |
107 | } | |
108 | } else { | |
b08024a8 | 109 | sr_info("short buffer (length_in=%" PRIu64 ")", length_in); |
97554432 BV |
110 | } |
111 | ||
112 | *data_out = outbuf; | |
113 | *length_out = strlen(outbuf); | |
114 | ||
e46b8fb1 | 115 | return SR_OK; |
97554432 BV |
116 | } |
117 | ||
7c1d391c | 118 | SR_PRIV struct sr_output_format output_text_ascii = { |
cdb3573c | 119 | .id = "ascii", |
d494a4aa UH |
120 | .description = "ASCII (takes argument, default 74)", |
121 | .df_type = SR_DF_LOGIC, | |
122 | .init = init_ascii, | |
123 | .data = data_ascii, | |
124 | .event = event, | |
97554432 | 125 | }; |