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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> | |
6e738600 | 5 | * Copyright (C) 2011 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> | |
31 | #include <sigrok.h> | |
32 | #include "config.h" | |
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; |
305bde4d | 45 | uint64_t samplerate; |
4487177c | 46 | int num_enabled_probes; |
ab224f7b | 47 | |
6e738600 BV |
48 | if (!(ctx = g_malloc(sizeof(struct context)))) |
49 | return SR_ERR_MALLOC; | |
6e738600 | 50 | o->internal = ctx; |
305bde4d | 51 | |
6e738600 | 52 | ctx->num_samples = 0; |
6e738600 BV |
53 | num_enabled_probes = 0; |
54 | for (l = o->device->probes; l; l = l->next) { | |
55 | probe = l->data; | |
56 | if (probe->enabled) | |
57 | num_enabled_probes++; | |
ab224f7b | 58 | } |
6e738600 | 59 | ctx->unitsize = (num_enabled_probes + 7) / 8; |
ab224f7b | 60 | |
305bde4d BV |
61 | if (o->device->plugin && sr_device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) |
62 | samplerate = *((uint64_t *) o->device->plugin->get_device_info( | |
63 | o->device->plugin_index, SR_DI_CUR_SAMPLERATE)); | |
64 | else | |
65 | samplerate = 0; | |
66 | ||
67 | ctx->header = g_string_sized_new(512); | |
68 | g_string_append_printf(ctx->header, ";Rate: %"PRIu64"\n", samplerate); | |
69 | g_string_append_printf(ctx->header, ";Channels: %d\n", num_enabled_probes); | |
70 | g_string_append_printf(ctx->header, ";EnabledChannels: -1\n"); | |
71 | g_string_append_printf(ctx->header, ";Compressed: true\n"); | |
72 | g_string_append_printf(ctx->header, ";CursorEnabled: false\n"); | |
305bde4d | 73 | |
6e738600 | 74 | return SR_OK; |
ab224f7b UH |
75 | } |
76 | ||
f50f3f40 | 77 | static int event(struct sr_output *o, int event_type, char **data_out, |
ab224f7b UH |
78 | uint64_t *length_out) |
79 | { | |
80 | struct context *ctx; | |
81 | ||
82 | ctx = o->internal; | |
6e738600 | 83 | |
305bde4d BV |
84 | if (ctx && event_type == SR_DF_END) { |
85 | if (ctx->header) | |
86 | g_string_free(ctx->header, TRUE); | |
ab224f7b UH |
87 | free(o->internal); |
88 | o->internal = NULL; | |
ab224f7b UH |
89 | } |
90 | ||
305bde4d BV |
91 | *data_out = NULL; |
92 | *length_out = 0; | |
93 | ||
e46b8fb1 | 94 | return SR_OK; |
ab224f7b UH |
95 | } |
96 | ||
54ac5277 | 97 | static int data(struct sr_output *o, const char *data_in, uint64_t length_in, |
ab224f7b UH |
98 | char **data_out, uint64_t *length_out) |
99 | { | |
305bde4d | 100 | GString *out; |
ab224f7b | 101 | struct context *ctx; |
ab224f7b | 102 | uint64_t sample; |
6e738600 | 103 | unsigned int i; |
ab224f7b UH |
104 | |
105 | ctx = o->internal; | |
305bde4d BV |
106 | if (ctx->header) { |
107 | /* first data packet */ | |
108 | out = ctx->header; | |
109 | ctx->header = NULL; | |
110 | } else | |
111 | out = g_string_sized_new(512); | |
112 | ||
ab224f7b | 113 | for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { |
6e738600 | 114 | sample = 0; |
ab224f7b | 115 | memcpy(&sample, data_in + i, ctx->unitsize); |
305bde4d | 116 | g_string_append_printf(out, "%08x@%"PRIu64"\n", |
6e738600 | 117 | (uint32_t) sample, ctx->num_samples++); |
ab224f7b | 118 | } |
305bde4d BV |
119 | *data_out = out->str; |
120 | *length_out = out->len; | |
121 | g_string_free(out, FALSE); | |
ab224f7b | 122 | |
e46b8fb1 | 123 | return SR_OK; |
ab224f7b UH |
124 | } |
125 | ||
f50f3f40 | 126 | struct sr_output_format output_ols = { |
d494a4aa UH |
127 | .extension = "ols", |
128 | .description = "OpenBench Logic Sniffer", | |
129 | .df_type = SR_DF_LOGIC, | |
130 | .init = init, | |
131 | .data = data, | |
132 | .event = event, | |
ab224f7b | 133 | }; |