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1 | /* | |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * Copyright (C) 2011 Bert Vermeulen <bert@biot.com> | |
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 | /* | |
23 | * Output format for the OpenBench Logic Sniffer "Alternative" Java client. | |
24 | * Details: https://github.com/jawi/ols/wiki/OLS-data-file-format | |
25 | */ | |
26 | ||
27 | #include <stdlib.h> | |
28 | #include <string.h> | |
29 | #include <glib.h> | |
30 | #include <sigrok.h> | |
31 | #include "config.h" | |
32 | ||
33 | struct context { | |
34 | GString *header; | |
35 | GString *body; | |
36 | uint64_t num_samples; | |
37 | gboolean got_trigger; | |
38 | uint64_t trigger_pos; | |
39 | unsigned int unitsize; | |
40 | }; | |
41 | ||
42 | ||
43 | static void make_header(struct sr_output *o) | |
44 | { | |
45 | struct context *ctx; | |
46 | uint64_t samplerate; | |
47 | int i; | |
48 | ||
49 | ctx = o->internal; | |
50 | ||
51 | if (o->device->plugin && device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) | |
52 | samplerate = *((uint64_t *) o->device->plugin->get_device_info( | |
53 | o->device->plugin_index, SR_DI_CUR_SAMPLERATE)); | |
54 | else | |
55 | samplerate = 0; | |
56 | ||
57 | g_string_append_printf(ctx->header, ";Size: %"PRIu64"\n", ctx->num_samples); | |
58 | g_string_append_printf(ctx->header, ";Rate: %"PRIu64"\n", samplerate); | |
59 | g_string_append_printf(ctx->header, ";Channels: %d\n", ctx->unitsize*8); | |
60 | g_string_append_printf(ctx->header, ";EnabledChannels: -1\n"); | |
61 | if (ctx->got_trigger) | |
62 | g_string_append_printf(ctx->header, ";TriggerPosition: %"PRIu64"\n", ctx->trigger_pos); | |
63 | g_string_append_printf(ctx->header, ";Compressed: true\n"); | |
64 | g_string_append_printf(ctx->header, ";AbsoluteLength: %"PRIu64"\n", ctx->num_samples); | |
65 | g_string_append_printf(ctx->header, ";CursorEnabled: false\n"); | |
66 | for (i = 0; i < 10; i++) | |
67 | g_string_append_printf(ctx->header, ";Cursor%d: 0\n", i); | |
68 | ||
69 | } | |
70 | ||
71 | static int init(struct sr_output *o) | |
72 | { | |
73 | struct context *ctx; | |
74 | struct probe *probe; | |
75 | GSList *l; | |
76 | int num_enabled_probes; | |
77 | ||
78 | if (!(ctx = g_malloc(sizeof(struct context)))) | |
79 | return SR_ERR_MALLOC; | |
80 | ||
81 | o->internal = ctx; | |
82 | ctx->header = g_string_sized_new(512); | |
83 | ctx->body = g_string_sized_new(512); | |
84 | ctx->num_samples = 0; | |
85 | ctx->got_trigger = FALSE; | |
86 | ctx->trigger_pos = 0; | |
87 | num_enabled_probes = 0; | |
88 | for (l = o->device->probes; l; l = l->next) { | |
89 | probe = l->data; | |
90 | if (probe->enabled) | |
91 | num_enabled_probes++; | |
92 | } | |
93 | ctx->unitsize = (num_enabled_probes + 7) / 8; | |
94 | ||
95 | return SR_OK; | |
96 | } | |
97 | ||
98 | static int event(struct sr_output *o, int event_type, char **data_out, | |
99 | uint64_t *length_out) | |
100 | { | |
101 | struct context *ctx; | |
102 | ||
103 | ctx = o->internal; | |
104 | *data_out = NULL; | |
105 | *length_out = 0; | |
106 | ||
107 | switch (event_type) { | |
108 | case SR_DF_TRIGGER: | |
109 | ctx->got_trigger = TRUE; | |
110 | ctx->trigger_pos = ctx->num_samples; | |
111 | break; | |
112 | case SR_DF_END: | |
113 | make_header(o); | |
114 | *length_out = ctx->header->len + ctx->body->len; | |
115 | *data_out = g_malloc(*length_out); | |
116 | memcpy(*data_out, ctx->header->str, ctx->header->len); | |
117 | memcpy(*data_out + ctx->header->len, ctx->body->str, ctx->body->len); | |
118 | g_string_free(ctx->header, TRUE); | |
119 | g_string_free(ctx->body, TRUE); | |
120 | free(o->internal); | |
121 | o->internal = NULL; | |
122 | break; | |
123 | } | |
124 | ||
125 | return SR_OK; | |
126 | } | |
127 | ||
128 | static int data(struct sr_output *o, char *data_in, uint64_t length_in, | |
129 | char **data_out, uint64_t *length_out) | |
130 | { | |
131 | struct context *ctx; | |
132 | uint64_t sample; | |
133 | unsigned int i; | |
134 | ||
135 | ctx = o->internal; | |
136 | for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { | |
137 | sample = 0; | |
138 | memcpy(&sample, data_in + i, ctx->unitsize); | |
139 | g_string_append_printf(ctx->body, "%08x@%"PRIu64"\n", | |
140 | (uint32_t) sample, ctx->num_samples++); | |
141 | } | |
142 | ||
143 | *data_out = NULL; | |
144 | *length_out = 0; | |
145 | ||
146 | return SR_OK; | |
147 | } | |
148 | ||
149 | struct sr_output_format output_ols = { | |
150 | "ols", | |
151 | "OpenBench Logic Sniffer", | |
152 | SR_DF_LOGIC, | |
153 | init, | |
154 | data, | |
155 | event, | |
156 | }; |