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Commit | Line | Data |
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ab224f7b UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Uwe Hermann <uwe@hermann-uwe.de> | |
c73d2ea4 | 5 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> |
ab224f7b UH |
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 2 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, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | /* | |
305bde4d BV |
23 | * This implements version 1.3 of the output format for the OpenBench Logic |
24 | * Sniffer "Alternative" Java client. Details: | |
25 | * https://github.com/jawi/ols/wiki/OLS-data-file-format | |
ab224f7b UH |
26 | */ |
27 | ||
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
30 | #include <glib.h> | |
45c59c8b BV |
31 | #include "libsigrok.h" |
32 | #include "libsigrok-internal.h" | |
ab224f7b UH |
33 | |
34 | struct context { | |
6e738600 | 35 | GString *header; |
6e738600 | 36 | uint64_t num_samples; |
ab224f7b | 37 | unsigned int unitsize; |
ab224f7b UH |
38 | }; |
39 | ||
6e738600 BV |
40 | static int init(struct sr_output *o) |
41 | { | |
42 | struct context *ctx; | |
1afe8989 | 43 | struct sr_probe *probe; |
6e738600 | 44 | GSList *l; |
5c3c1241 | 45 | uint64_t *samplerate, tmp; |
4487177c | 46 | int num_enabled_probes; |
ab224f7b | 47 | |
b53738ba UH |
48 | if (!(ctx = g_try_malloc(sizeof(struct context)))) { |
49 | sr_err("ols out: %s: ctx malloc failed", __func__); | |
6e738600 | 50 | return SR_ERR_MALLOC; |
b53738ba | 51 | } |
6e738600 | 52 | o->internal = ctx; |
305bde4d | 53 | |
6e738600 | 54 | ctx->num_samples = 0; |
6e738600 | 55 | num_enabled_probes = 0; |
5c3c1241 | 56 | for (l = o->sdi->probes; l; l = l->next) { |
6e738600 BV |
57 | probe = l->data; |
58 | if (probe->enabled) | |
59 | num_enabled_probes++; | |
ab224f7b | 60 | } |
6e738600 | 61 | ctx->unitsize = (num_enabled_probes + 7) / 8; |
ab224f7b | 62 | |
5c3c1241 BV |
63 | if (o->sdi->driver && sr_dev_has_hwcap(o->sdi, SR_HWCAP_SAMPLERATE)) |
64 | o->sdi->driver->info_get(SR_DI_CUR_SAMPLERATE, | |
65 | (const void **)&samplerate, o->sdi); | |
66 | else { | |
67 | tmp = 0; | |
68 | samplerate = &tmp; | |
69 | } | |
305bde4d BV |
70 | |
71 | ctx->header = g_string_sized_new(512); | |
5c3c1241 | 72 | g_string_append_printf(ctx->header, ";Rate: %"PRIu64"\n", *samplerate); |
305bde4d BV |
73 | g_string_append_printf(ctx->header, ";Channels: %d\n", num_enabled_probes); |
74 | g_string_append_printf(ctx->header, ";EnabledChannels: -1\n"); | |
75 | g_string_append_printf(ctx->header, ";Compressed: true\n"); | |
76 | g_string_append_printf(ctx->header, ";CursorEnabled: false\n"); | |
305bde4d | 77 | |
6e738600 | 78 | return SR_OK; |
ab224f7b UH |
79 | } |
80 | ||
054e6709 | 81 | static int event(struct sr_output *o, int event_type, uint8_t **data_out, |
ab224f7b UH |
82 | uint64_t *length_out) |
83 | { | |
84 | struct context *ctx; | |
85 | ||
86 | ctx = o->internal; | |
6e738600 | 87 | |
305bde4d | 88 | if (ctx && event_type == SR_DF_END) { |
66410a86 | 89 | g_string_free(ctx->header, TRUE); |
133a37bf | 90 | g_free(o->internal); |
ab224f7b | 91 | o->internal = NULL; |
ab224f7b UH |
92 | } |
93 | ||
305bde4d BV |
94 | *data_out = NULL; |
95 | *length_out = 0; | |
96 | ||
e46b8fb1 | 97 | return SR_OK; |
ab224f7b UH |
98 | } |
99 | ||
054e6709 UH |
100 | static int data(struct sr_output *o, const uint8_t *data_in, |
101 | uint64_t length_in, uint8_t **data_out, uint64_t *length_out) | |
ab224f7b | 102 | { |
305bde4d | 103 | GString *out; |
ab224f7b | 104 | struct context *ctx; |
ab224f7b | 105 | uint64_t sample; |
6e738600 | 106 | unsigned int i; |
ab224f7b UH |
107 | |
108 | ctx = o->internal; | |
305bde4d BV |
109 | if (ctx->header) { |
110 | /* first data packet */ | |
111 | out = ctx->header; | |
112 | ctx->header = NULL; | |
113 | } else | |
114 | out = g_string_sized_new(512); | |
115 | ||
ab224f7b | 116 | for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { |
6e738600 | 117 | sample = 0; |
ab224f7b | 118 | memcpy(&sample, data_in + i, ctx->unitsize); |
305bde4d | 119 | g_string_append_printf(out, "%08x@%"PRIu64"\n", |
6e738600 | 120 | (uint32_t) sample, ctx->num_samples++); |
ab224f7b | 121 | } |
054e6709 | 122 | *data_out = (uint8_t *)out->str; |
305bde4d BV |
123 | *length_out = out->len; |
124 | g_string_free(out, FALSE); | |
ab224f7b | 125 | |
e46b8fb1 | 126 | return SR_OK; |
ab224f7b UH |
127 | } |
128 | ||
7c1d391c | 129 | SR_PRIV struct sr_output_format output_ols = { |
cdb3573c | 130 | .id = "ols", |
d494a4aa UH |
131 | .description = "OpenBench Logic Sniffer", |
132 | .df_type = SR_DF_LOGIC, | |
133 | .init = init, | |
134 | .data = data, | |
135 | .event = event, | |
ab224f7b | 136 | }; |