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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> | |
b53738ba | 32 | #include <sigrok-internal.h> |
ab224f7b UH |
33 | #include "config.h" |
34 | ||
35 | struct context { | |
6e738600 | 36 | GString *header; |
6e738600 | 37 | uint64_t num_samples; |
ab224f7b | 38 | unsigned int unitsize; |
ab224f7b UH |
39 | }; |
40 | ||
6e738600 BV |
41 | static int init(struct sr_output *o) |
42 | { | |
43 | struct context *ctx; | |
1afe8989 | 44 | struct sr_probe *probe; |
6e738600 | 45 | GSList *l; |
305bde4d | 46 | uint64_t samplerate; |
4487177c | 47 | int num_enabled_probes; |
ab224f7b | 48 | |
b53738ba UH |
49 | if (!(ctx = g_try_malloc(sizeof(struct context)))) { |
50 | sr_err("ols out: %s: ctx malloc failed", __func__); | |
6e738600 | 51 | return SR_ERR_MALLOC; |
b53738ba | 52 | } |
6e738600 | 53 | o->internal = ctx; |
305bde4d | 54 | |
6e738600 | 55 | ctx->num_samples = 0; |
6e738600 BV |
56 | num_enabled_probes = 0; |
57 | for (l = o->device->probes; l; l = l->next) { | |
58 | probe = l->data; | |
59 | if (probe->enabled) | |
60 | num_enabled_probes++; | |
ab224f7b | 61 | } |
6e738600 | 62 | ctx->unitsize = (num_enabled_probes + 7) / 8; |
ab224f7b | 63 | |
305bde4d BV |
64 | if (o->device->plugin && sr_device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) |
65 | samplerate = *((uint64_t *) o->device->plugin->get_device_info( | |
66 | o->device->plugin_index, SR_DI_CUR_SAMPLERATE)); | |
67 | else | |
68 | samplerate = 0; | |
69 | ||
70 | ctx->header = g_string_sized_new(512); | |
71 | g_string_append_printf(ctx->header, ";Rate: %"PRIu64"\n", samplerate); | |
72 | g_string_append_printf(ctx->header, ";Channels: %d\n", num_enabled_probes); | |
73 | g_string_append_printf(ctx->header, ";EnabledChannels: -1\n"); | |
74 | g_string_append_printf(ctx->header, ";Compressed: true\n"); | |
75 | g_string_append_printf(ctx->header, ";CursorEnabled: false\n"); | |
305bde4d | 76 | |
6e738600 | 77 | return SR_OK; |
ab224f7b UH |
78 | } |
79 | ||
f50f3f40 | 80 | static int event(struct sr_output *o, int event_type, char **data_out, |
ab224f7b UH |
81 | uint64_t *length_out) |
82 | { | |
83 | struct context *ctx; | |
84 | ||
85 | ctx = o->internal; | |
6e738600 | 86 | |
305bde4d BV |
87 | if (ctx && event_type == SR_DF_END) { |
88 | if (ctx->header) | |
89 | g_string_free(ctx->header, TRUE); | |
ab224f7b UH |
90 | free(o->internal); |
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 | ||
54ac5277 | 100 | static int data(struct sr_output *o, const char *data_in, uint64_t length_in, |
ab224f7b UH |
101 | char **data_out, uint64_t *length_out) |
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 | } |
305bde4d BV |
122 | *data_out = out->str; |
123 | *length_out = out->len; | |
124 | g_string_free(out, FALSE); | |
ab224f7b | 125 | |
e46b8fb1 | 126 | return SR_OK; |
ab224f7b UH |
127 | } |
128 | ||
f50f3f40 | 129 | 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 | }; |