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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 <stdio.h> | |
23 | #include <string.h> | |
24 | #include <glib.h> | |
25 | #include <sigrok.h> | |
26 | #include "config.h" | |
27 | #include "text.h" | |
28 | ||
97554432 BV |
29 | void flush_linebufs(struct context *ctx, char *outbuf) |
30 | { | |
31 | static int max_probename_len = 0; | |
32 | int len, i; | |
33 | ||
34 | if (ctx->linebuf[0] == 0) | |
35 | return; | |
36 | ||
37 | if (max_probename_len == 0) { | |
38 | /* First time through... */ | |
39 | for (i = 0; ctx->probelist[i]; i++) { | |
40 | len = strlen(ctx->probelist[i]); | |
41 | if (len > max_probename_len) | |
42 | max_probename_len = len; | |
43 | } | |
44 | } | |
45 | ||
46 | for (i = 0; ctx->probelist[i]; i++) { | |
47 | sprintf(outbuf + strlen(outbuf), "%*s:%s\n", max_probename_len, | |
48 | ctx->probelist[i], ctx->linebuf + i * ctx->linebuf_len); | |
49 | } | |
50 | ||
51 | /* Mark trigger with a ^ character. */ | |
52 | if (ctx->mark_trigger != -1) | |
53 | { | |
54 | int space_offset = ctx->mark_trigger / 8; | |
55 | ||
56 | if (ctx->mode == MODE_ASCII) | |
57 | space_offset = 0; | |
58 | ||
59 | sprintf(outbuf + strlen(outbuf), "T:%*s^\n", | |
60 | ctx->mark_trigger + space_offset, ""); | |
61 | } | |
62 | ||
63 | memset(ctx->linebuf, 0, i * ctx->linebuf_len); | |
64 | } | |
65 | ||
f50f3f40 | 66 | int init(struct sr_output *o, int default_spl, enum outputmode mode) |
97554432 BV |
67 | { |
68 | struct context *ctx; | |
1afe8989 | 69 | struct sr_probe *probe; |
97554432 BV |
70 | GSList *l; |
71 | uint64_t samplerate; | |
72 | int num_probes; | |
73 | char *samplerate_s; | |
74 | ||
75 | if (!(ctx = calloc(1, sizeof(struct context)))) | |
e46b8fb1 | 76 | return SR_ERR_MALLOC; |
97554432 BV |
77 | |
78 | o->internal = ctx; | |
79 | ctx->num_enabled_probes = 0; | |
80 | ||
81 | for (l = o->device->probes; l; l = l->next) { | |
82 | probe = l->data; | |
83 | if (!probe->enabled) | |
84 | continue; | |
85 | ctx->probelist[ctx->num_enabled_probes++] = probe->name; | |
86 | } | |
87 | ||
88 | ctx->probelist[ctx->num_enabled_probes] = 0; | |
89 | ctx->unitsize = (ctx->num_enabled_probes + 7) / 8; | |
90 | ctx->line_offset = 0; | |
91 | ctx->spl_cnt = 0; | |
92 | ctx->mark_trigger = -1; | |
93 | ctx->mode = mode; | |
94 | ||
95 | if (o->param && o->param[0]) { | |
96 | ctx->samples_per_line = strtoul(o->param, NULL, 10); | |
97 | if (ctx->samples_per_line < 1) | |
e46b8fb1 | 98 | return SR_ERR; |
97554432 BV |
99 | } else |
100 | ctx->samples_per_line = default_spl; | |
101 | ||
102 | if (!(ctx->header = malloc(512))) { | |
103 | free(ctx); | |
e46b8fb1 | 104 | return SR_ERR_MALLOC; |
97554432 BV |
105 | } |
106 | ||
107 | snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING); | |
108 | num_probes = g_slist_length(o->device->probes); | |
2bf4aca6 | 109 | if (o->device->plugin || sr_device_has_hwcap(o->device, SR_HWCAP_SAMPLERATE)) { |
97554432 | 110 | samplerate = *((uint64_t *) o->device->plugin->get_device_info( |
5a2326a7 | 111 | o->device->plugin_index, SR_DI_CUR_SAMPLERATE)); |
a00ba012 | 112 | if (!(samplerate_s = sr_samplerate_string(samplerate))) { |
97554432 BV |
113 | free(ctx->header); |
114 | free(ctx); | |
e46b8fb1 | 115 | return SR_ERR; |
97554432 BV |
116 | } |
117 | snprintf(ctx->header + strlen(ctx->header), | |
118 | 511 - strlen(ctx->header), | |
119 | "Acquisition with %d/%d probes at %s\n", | |
120 | ctx->num_enabled_probes, num_probes, samplerate_s); | |
121 | free(samplerate_s); | |
122 | } | |
123 | ||
124 | ctx->linebuf_len = ctx->samples_per_line * 2 + 4; | |
125 | if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) { | |
126 | free(ctx->header); | |
127 | free(ctx); | |
e46b8fb1 | 128 | return SR_ERR_MALLOC; |
97554432 BV |
129 | } |
130 | if (!(ctx->linevalues = calloc(1, num_probes))) { | |
131 | free(ctx->header); | |
132 | free(ctx); | |
e46b8fb1 | 133 | return SR_ERR_MALLOC; |
97554432 BV |
134 | } |
135 | ||
e46b8fb1 | 136 | return SR_OK; |
97554432 BV |
137 | } |
138 | ||
f50f3f40 | 139 | int event(struct sr_output *o, int event_type, char **data_out, |
97554432 BV |
140 | uint64_t *length_out) |
141 | { | |
142 | struct context *ctx; | |
143 | int outsize; | |
144 | char *outbuf; | |
145 | ||
146 | ctx = o->internal; | |
147 | switch (event_type) { | |
5a2326a7 | 148 | case SR_DF_TRIGGER: |
97554432 BV |
149 | ctx->mark_trigger = ctx->spl_cnt; |
150 | *data_out = NULL; | |
151 | *length_out = 0; | |
152 | break; | |
5a2326a7 | 153 | case SR_DF_END: |
97554432 BV |
154 | outsize = ctx->num_enabled_probes |
155 | * (ctx->samples_per_line + 20) + 512; | |
156 | if (!(outbuf = calloc(1, outsize))) | |
e46b8fb1 | 157 | return SR_ERR_MALLOC; |
97554432 BV |
158 | flush_linebufs(ctx, outbuf); |
159 | *data_out = outbuf; | |
160 | *length_out = strlen(outbuf); | |
161 | free(o->internal); | |
162 | o->internal = NULL; | |
163 | break; | |
164 | default: | |
165 | *data_out = NULL; | |
166 | *length_out = 0; | |
167 | break; | |
168 | } | |
169 | ||
e46b8fb1 | 170 | return SR_OK; |
97554432 | 171 | } |